SOUTHWESTERN BELL COMPANY TARIFF F.C.C. NO. 73 14th Revised Title Page 1 Cancels 13th Revised Title Page 1

ACCESS SERVICE

Regulations, Rates and Charges applying to the provision of Access Services within a Local Access and Transport Area (LATA) or equivalent Market Area and for the provision of InterLATA services, in accordance with Section 271(b)(3) of the Communications Act of 1934, as amended by the Act of 1996, for connection to interstate communications facilities for customers within the operating territory of the in the State(s) of , , , and as provided herein.

Company Code

Southwestern 9533 Arkansas 5211 Kansas 5214 Missouri 5213 Oklahoma 5215 Texas 5216

All material contained herein is moved from Tariff F.C.C. No. 68.

The original effective date for the Southwestern Bell Telephone Company Tariff F.C.C. No. 68 is May 24, 1984 and, for Section 7, April 1, 1985.

Access Services are provided by means of wire, fiber optics, radio or any other suitable technology or a combination thereof.

Not all services described in this tariff are available from every wire center. The services available from each specific wire center are listed in the National Exchange Carrier Association, Inc., Tariff F.C.C. No. 4.

Issuing Officer:

Kristen Shore (T) Executive Director - Regulatory (T) (D) (D)

(This page filed under Transmittal No. 3424 )

Issued: March 30, 2016 Effective: April 14, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1214th Revised Page 1 Cancels 1213th Revised Page 1

CHECK SHEET Title page 1 and pages 1 to 41-5 inclusive of this tariff are effective as of the date shown. Original and revised pages as named below and Supplement No. 66 contain all changes from the original tariff that are in effect on the date hereof.

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated Title 1 14th 1.37 28th 31-13 2nd 1 1214th* 1.38 22nd 32 10th 1.1 150th 1.39 24th 33 4th 1.2 320th 1.40 21st 34 11th 1.3 75th 1.41 5th 35 9th 1.4 96th 1.42 Original 36 8th 1.5 167th 2 Original 37 8th 1.6 124th 3 4th 38 7th 1.7 117th 4 3rd 39 4th 1.7.1 Original 5 1st 39.1 19th 1.8 73rd 6 1st 40 13th 1.8.1 2nd 7 3rd 41 14th 1.9 61st 8 5th 42 1st 1.9.1 8th 9 3rd 43 1st 1.10 104th 10 7th 44 2nd 1.10.1 52nd* 11 10th 1-1 4th 1.11 157th 12 8th 2-1 7th 1.11.1 30th* 13 3rd 2-2 14th 1.12 63rd 14 1st 2-3 24th 1.13 88th 15 6th 2-4 11th 1.13.1 36th 16 5th 2-5 12th 1.14 93rd* 17 Original 2-6 33rd 1.15 45th 18 19th 2-7 13th 1.16 50th 19 16th 2-8 10th 1.16.1 21st 20 6th 2-9 1st 1.17 69th 20.1 13th 2-10 Original 1.18 46th 20.2 2nd 2-11 Original 1.19 45th 20.3 4th 2-12 Original 1.20 24th 21 1st 2-13 1st 1.20.1 6th 22 2nd 2-14 3rd 1.20.2 5th 23 3rd 2-15 Original 1.20.3 6th 24 7th* 2-16 Original 1.20.4 20th 25 2nd 2-17 7th 1.21 46th 26 4th 2-17.1 1st 1.22 55th 27 2nd 2-17.2 1st 1.23 63rd 28 2nd 2-18 2nd 1.23.1 13th 29 1st 2-19 2nd 1.24 61st 30 3rd 2-20 11th 1.24.1 6th 31 2nd 2-21 10th 1.25 29th 31.1 9th 2-22 5th 1.26 72nd 31.2 5th 2-23 Original 1.27 10th 31.3 11th 2-24 4th 1.28 12th 31.4 7th 2-25 Original 1.29 25th 31.5 4th 2-26 1st 1.30 21st 31.6 21st 2-27 Original 1.31 25th 31.7 10th 2-28 Original 1.32 19th 31.8 23rd 2-29 Original 1.33 21st 31.9 43rd 2-30 Original 1.34 25th 31.10 37th 2-31 Original 1.35 34th 31.11 36th 2-32 Original 1.36 33rd 31.12 49th 2-33 Original 31.13 2nd 2-34 Original * New or Revised Page

Issuing Officer: Kristen Shore, Executive Director - Regulatory (This page filed under Transmittal No. 3437 )

Issued: December 1, 2016 Effective: December 16, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308 SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 149th Revised Page 1.1 Cancels 148th Revised Page 1.1

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 2-35 9th* 2-55.1 5th* 2-76.11 13th 2-36 10th 2-55.2 5th* 2-76.12 12th 2-36.1 1st 2-55.3 6th* 2-76.13 3rd 2-37 10th 2-55.4 2nd* 2-76.14 2nd 2-38 4th 2-55.5 2nd* 2-76.15 2nd 2-38.1 11th 2-56 5th 2-76.16 2nd 2-39 12th 2-57 5th 2-76.17 2nd 2-40 7th 2-58 5th 2-76.18 2nd 2-41 13th* 2-59 5th 2-76.19 2nd 2-42 9th 2-60 5th 2-76.20 10th 2-42.1 8th 2-61 5th 2-76.21 10th 2-43 10th 2-62 7th 2-76.22 7th 2-43.1 9th 2-63 9th 2-76.23 3rd 2-44 10th 2-64 8th 2-77 10th 2-45 12th 2-65 7th 2-78 6th 2-45.1 4th 2-65.1 5th* 2-78.1 3rd 2-45.2 9th 2-66 3rd 2-78.2 3rd 2-45.3 15th 2-67 2nd 2-78.3 7th 2-45.4 14th 2-68 4th 2-78.4 4th 2-45.5 7th 2-69 5th 2-78.5 8th 2-45.6 10th* 2-70 6th* 2-78.6 4th 2-45.7 5th 2-71 3rd 2-78.7 4th 2-45.8 4th 2-71.1 2nd 2-79 11th 2-46 10th 2-72 10th* 2-79.1 4th 2-47 8th 2-72.1 5th 2-79.2 5th 2-48 12th 2-72.2 2nd 2-80 3rd 2-48.1 1st 2-73 7th 2-81 1st 2-49 5th 2-73.1 1st 2-81.1 3rd 2-50 4th 2-74 9th 2-81.2 2nd 2-51 5th 2-74.1 18th 2-82 14th 2-52 5th 2-74.2 1st 2-83 Original 2-52.1 4th 2-75 3rd 2-84 9th 2-85 Original 2-52.2 3rd 2-76 11th* 2-86 Original 2-52.3 7th 2-76.1 4th* 2-87 1st 2-52.4 3rd 2-76.2 6th* 2-52.5 7th 2-88 2nd 2-76.3 4th* 2-52.6 Original 2-89 2nd 2-76.4 4th* 2-52.7 10th 2-90 1st 2-52.8 11th 2-76.5 4th* 2-91 1st 2-52.9 4th 2-76.6 3rd* 2-91.1 Original 2-52.10 5th 2-76.7 4th 2-91.2 Original 2-52.11 1st 2-76.7.1 1st 2-91.3 Original 2-52.12 1st 2-76.7.2 1st 2-91.4 1st 2-52.13 2nd 2-76.7.3 1st 2-91.5 4th 2-52.14 Original 2-76.7.4 1st 2-91.6 4th 2-53 10th 2-76.7.5 1st 2-91.7 4th 2-54 7th 2-76.7.6 1st 2-92 10th 2-54.1 2nd 2-76.8 6th 2-92.1 3rd 2-76.9 2nd 2-55 2nd* 2-93 6th 2-76.10 3rd* 2-94 5th * New or Revised Page

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, , Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 320th Revised Page 1.2 Cancels 319th Revised Page 1.2

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Except Revision Except Revision Except Page as Indicated Page as Indicated Page as Indicated 2-95 4th 3-10.2 2nd 5-9 7th 2-96 13th 3-10.3 1st 5-10 3rd 2-97 10th 3-11 2nd 5-11 2nd 2-98 6th 3-12 2nd 5-12 3rd 2-98.1 Original 3-13 1st 5-12.1 2nd 2-99 1st 3-14 3rd 5-13 2nd 2-100 8th 3-15 1st 5-14 2nd 2-101 14th 3-16 3rd 5-15 9th 2-102 1st 3-17 2nd 5-16 11th 2-103 4th 3-18 1st 5-17 2nd 2-103.1 2nd 3-19 6th 5-17.1 6th 2-104 10th 3-20 42nd 5-17.2 8th 2-105 3rd 4-1 5th 5-17.3 3rd 2-106 2nd 4-2 6th 5-17.4 3rd 2-107 4th 4-3 13th 5-17.5 6th 2-107.1 1st 4-3.1 2nd 5-17.6 6th 2-108 3rd 4-4 6th 5-17.7 14th 2-108.1 Original 4-5 2nd 5-17.8 8th 2-109 5th 4-5.1 5th 5-17.9 5th 2-109.1 10th 4-5.2 3rd 5-17.10 6th 2-110 8th 4-5.3 51st 5-17.11 3rd 2-111 1st 4-6 62nd 5-17.12 13th 2-111.1 19th 4-7 2nd 5-17.13 1st 2-112 13th 4-8 28th 5-17.14 Original 2-113 11th 4-8.1 29th 5-17.15 Original 2-113.1 Original 4-9 29th 5-18 13th 2-114 9th 4-10 54th 5-18.1 8th* 2-114.1 10th 4-11 54th 5-19 5th 2-115 12th 4-12 52nd 5-20 9th 2-116 2nd 4-12.1 5th 5-21 1st 2-117 1st 4-12.2 5th 5-22 Original 2-118 8th 4-13 76th 5-23 13th 2-118.1 Original 4-14 71st 5-24 3rd 2-119 3rd 4-15 52nd 5-25 13th 2-119.1 1st 5-1 40th 5-26 2nd 2-120 4th 5-2 9th 5-27 9th 2-121 11th 5-3 1st 5-27.1 Original 2-122 5th 5-4 5th 5-28 5th 2-123 3rd 5-4.1 2nd 5-29 20th* 3-1 5th 5-4.2 2nd 5-30 20th* 3-2 2nd 5-5 3rd 5-30.1 12th* 3-3 Original 5-5.1 5th 5-30.1.1 8th* 3-4 4th 5-6 6th 5-30.2 12th 3-5 5th 5-7 3rd 5-31 10th 3-6 7th 5-7.1 2nd 5-31.1 1st 3-7 4th 5-8 4th 5-31.2 2nd 3-8 4th 5-8.1 2nd 5-32 7th 3-9 4th 5-8.2 3rd 5-33 12th 3-10 4th 5-8.3 5th 5-34 6th 3-10.1 2nd 5-8.4 1st 5-34.1 110th * New or Revised Page (This page filed under Transmittal No. 3436 )

Issued: October 12, 2016 Effective: October 27, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 75th Revised Page 1.3 Cancels 74th Revised Page 1.3

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

5-34.2 9th 6-33 7th 6-54 2nd 5-34.3 10th 6-34 2nd 6-55 3rd 5-35 29th 6-35 6th 6-56 6th 5-36 3rd 6-36 4th 6-57 6th 6-1 5th 6-37 2nd 6-58 6th 6-2 3rd 6-38 4th 6-58.1 2nd 6-2.1 3rd 6-39 2nd 6-59 5th 6-3 8th 6-40 Original 6-60 4th 6-4 10th 6-41 4th 6-61 8th 6-5 4th 6-42 4th 6-62 5th 6-6 12th 6-42.1 Original 6-63 6th 6-6.1 Original 6-43 3rd 6-64 4th 6-7 2nd 6-43.1 5th 6-65 7th 6-7.1 1st 6-44 4th 6-66 5th 6-7.2 Original 6-45 2nd* 6-67 7th 6-8 1st 6-45.1 5th 6-68 4th 6-9 Original 6-45.2 2nd 6-69 6th 6-10 3rd 6-45.3 1st 6-69.1 2nd 6-11 Original 6-45.4 3rd 6-70 6th 6-12 1st 6-45.5 2nd 6-71 10th 6-13 5th 6-45.6 2nd 6-72 8th 6-14 6th 6-45.7 3rd 6-72.1 8th 6-15 2nd 6-45.8 1st 6-72.2 8th 6-16 5th 6-45.9 1st 6-72.3 7th 6-17 7th 6-46 1st 6-73 2nd 6-18 2nd 6-47 5th 6-74 2nd 6-19 7th 6-48 2nd 6-75 2nd 6-20 2nd 6-49 2nd 6-76 1st 6-21 6th 6-50 2nd 6-77 1st 6-22 1st 6-50.1 4th 6-78 2nd 6-23 Original 6-50.2 1st 6-79 1st 6-24 2nd 6-50.3 1st 6-80 2nd 6-25 Original 6-50.4 3rd 6-81 1st 6-26 1st 6-50.5 3rd 6-82 1st 6-27 4th 6-50.6 1st 6-83 5th 6-28 2nd 6-51 12th 6-84 1st 6-29 4th 6-52 9th 6-85 2nd 6-30 3rd 6-53 13th 6-86 4th 6-31 3rd 6-32 4th

* New or Revised Page

(This page filed under Transmittal No. 3433 )

Issued: August 29, 2016 Effective: September 13, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 96th Revised Page 1.4 Cancels 95th Revised Page 1.4

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

6-87 5th 6-124 3rd 6-147 2nd* 6-87.1 2nd 6-124.1 2nd 6-148 5th* 6-88 4th 6-124.2 Original 6-149 4th* 6-89 4th 6-124.3 Original 6-149.1 4th 6-90 4th 6-124.4 Original 6-149.2 3rd 6-91 3rd 6-124.5 Original 6-149.3 7th 6-92 4th 6-124.6 Original 6-149.4 4th 6-93 4th 6-124.7 Original 6-149.5 5th 6-94 3rd 6-124.8 Original 6-149.6 5th 6-94.1 3rd 6-125 7th 6-150 7th 6-94.2 1st 6-126 4th* 6-150.1 5th 6-95 5th 6-126.1 3rd 6-150.2 7th 6-96 1st 6-126.2 3rd 6-151 2nd 6-97 3rd 6-126.3 3rd 6-152 1st 6-98 2nd 6-127 4th 6-153 2nd 6-98.1 4th 6-128 4th* 6-154 2nd 6-99 2nd 6-129 3rd 6-155 2nd 6-100 1st 6-130 4th 6-155.1 1st 6-101 1st 6-130.1 2nd 6-156 2nd 6-102 2nd 6-130.2 3rd 6-157 2nd 6-103 1st 6-131 6th* 6-158 2nd 6-104 1st 6-132 3rd 6-159 3rd 6-105 3rd 6-133 6th 6-160 1st 6-106 2nd 6-133.1 2nd 6-161 1st 6-107 3rd 6-134 4th 6-162 1st 6-108 3rd 6-135 5th 6-163 2nd 6-109 4th 6-136 5th 6-163.1 1st 6-110 3rd 6-137 5th 6-163.2 4th 6-111 1st 6-138 2nd 6-163.3 1st 6-112 3rd 6-139 5th 6-163.4 3rd 6-113 1st 6-140 8th 6-164 3rd 6-114 1st 6-140.1 11th 6-165 5th 6-115 2nd 6-140.2 12th 6-165.1 8th 6-116 1st 6-140.3 9th 6-166 1st 6-117 1st 6-141 7th* 6-167 1st 6-118 2nd 6-141.1 4th* 6-168 2nd* 6-118.1 1st 6-142 8th* 6-169 3rd 6-119 2nd 6-142.1 1st 6-169.1 1st 6-120 4th 6-143 9th* 6-170 6th 6-121 3rd 6-144 3rd 6-171 2nd 6-122 1st 6-145 3rd* 6-171.1 2nd 6-123 1st 6-146 2nd*

* New or Revised Page

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 168th Revised Page 1.5 Cancels 167th Revised Page 1.5

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 6-172 5th 6-180.6 Original 7-12 6th 6-173 2nd 6-181 5th 7-13 1st 6-173.1 2nd 6-182 5th 7-14 2nd 6-173.2 2nd 6-183 5th 7-15 Original 6-173.3 1st 6-184 5th 7-16 1st 6-173.4 3rd 6-184.1 9th 7-17 1st 6-174 3rd 6-184.2 7th 7-18 Original 6-175 1st 6-185 46th* 7-19 4th 6-176 6th 6-186 12th 7-20 3rd 6-176.1 3rd 6-187 12th 7-21 1st 6-176.2 8th 6-188 15th 7-22 Original 6-177 1st 6-189 8th 7-23 2nd 6-178 2nd 6-190 9th 7-24 5th 6-178.1 3rd 6-191 9th 7-25 Original 6-178.2 1st 6-192 9th 7-26 2nd 6-178.3 1st 6-193 8th 7-27 Original 6-178.4 1st 6-194 10th 7-28 Original 6-178.5 1st 6-194.1 4th 7-29 2nd 6-178.6 1st 6-195 6th 7-30 5th 6-178.7 1st 6-196 7th 7-31 1st 6-178.8 1st 6-197 7th 7-32 1st 6-178.9 3rd 6-198 7th 7-33 2nd 6-178.10 1st 6-199 6th 7-34 2nd 6-179 47th 6-200 6th 7-35 3rd 6-179.1 20th 6-201 8th 7-36 Original 6-179.2 10th 6-202 6th 7-37 Original 6-179.3 16th 6-203 6th 7-38 Original 6-179.4 9th 6-204 6th 7-39 1st 6-179.5 17th 6-205 8th 7-40 4th 6-179.6 13th 6-206 6th 7-41 2nd 6-179.7 19th 6-207 6th 7-41.1 Original 6-179.8 2nd 6-208 12th 7-41.2 Original 6-179.9 15th 6-209 22nd 7-41.3 Original 6-179.10 1st 6-210 3rd 7-41.4 Original 6-179.11 27th 6-211 3rd 7-41.5 Original 6-179.12 2nd 7-1 5th 7-42 2nd 6-179.13 2nd 7-2 13th 7-43 8th 6-179.14 3rd 7-3 3rd 7-44 2nd 6-179.15 2nd 7-4 1st 7-45 Original 6-179.16 Original 7-5 7th 7-46 4th 6-180 9th 7-6 1st 7-47 5th 6-180.1 5th 7-7 5th 7-47.1 6th 6-180.2 3rd 7-8 1st 7-48 Original 6-180.3 3rd 7-9 1st 7-49 Original 6-180.4 1st 7-10 5th 7-50 Original 6-180.5 1st 7-11 1st 7-51 Original

* New or Revised Page

(This page filed under Transmittal No. 3427 )

Issued: June 16, 2016 Effective: July 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 124th Revised Page 1.6 Cancels 123rd Revised Page 1.6

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

7-52 Original 7-70 Original 7-111 4th 7-53 Original 7-71 1st 7-112 4th 7-54 Original 7-72 11th 7-113 5th 7-55 Original 7-73 Original 7-114 4th 7-56 Original 7-74 Original 7-115 5th 7-57 Original 7-75 Original 7-116 5th 7-58 4th 7-76 6th 7-117 4th 7-59 8th 7-77 Original 7-118 4th 7-60 4th 7-78 5th 7-119 5th 7-61 5th 7-79 1st 7-120 4th 7-62 3rd 7-80 1st 7-121 4th 7-62.1 2nd 7-81 Original 7-122 5th 7-62.2 3rd 7-82 Original 7-123 4th 7-62.3 2nd 7-83 1st 7-124 4th 7-62.4 3rd 7-84 Original 7-125 5th 7-63 4th 7-85 Original 7-126 4th 7-64 5th 7-86 Original 7-126.1 6th 7-65 2nd 7-87 Original 7-126.2 6th 7-65.1 9th 7-88 Original 7-126.3 5th 7-65.1.1 2nd 7-89 35th 7-126.4 5th 7-65.2 2nd 7-90 14th 7-126.5 6th 7-65.3 3rd 7-91 11th 7-126.6 4th 7-65.4 2nd 7-92 14th 7-126.7 7th 7-65.5 4th 7-93 15th 7-65.6 11th 7-93.1 3rd 7-65.7 7th 7-93.2 4th 7-65.8 7th 7-93.3 6th 7-65.9 5th 7-94 9th 7-65.10 8th 7-94.1 8th 7-65.10.1 Original 7-95 16th 7-65.11 1st 7-96 10th 7-65.12 Original 7-97 4th 7-66 4th 7-98 5th 7-67 4th 7-99 4th 7-68 10th 7-100 4th 7-68.1 12th 7-101 5th 7-68.2 9th 7-102 4th 7-68.3 6th 7-103 4th 7-68-3.1 12th* 7-104 5th 7-68-3.2 9th* 7-105 4th 7-68-3.3 6th* 7-106 4th 7-68-3.4 5th* 7-107 5th 7-68-3.4.1 Original* 7-108 4th 7-68-3.4.2 Original* 7-109 4th 7-68-3.5 5th* 7-110 5th 7-68.4 3rd 7-68.5 5th 7-68.6 2nd 7-69 7th

New or Revised Page (This page filed under Transmittal No. 3432 )

Issued: August 15, 2016 Effective: August 30, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 117th Revised Page 1.7 Cancels 116th Revised Page 1.7

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 7-126.8 7th 7-134.1 10th 7-169.4 4th 7-126.9 6th 7-134.2 3rd 7-169.5 4th 7-126.10 6th 7-134.3 1st 7-169.6 4th 7-126.11 7th 7-135 1st 7-169.7 5th 7-126.12 6th 7-136 7th 7-169.8 5th 7-126.13 5th 7-137 9th 7-169.9 4th 7-126.14 6th 7-138 19th 7-169.10 5th 7-126.15 5th 7-138.1 5th 7-169.11 5th 7-126.16 5th 7-138.2 6th 7-169.12 5th 7-126.17 6th 7-139 10th 7-169.13 6th 7-126.18 5th 7-139.1 6th 7-169.14 6th 7-126.19 4th 7-139.2 6th 7-169.15 6th 7-126.20 5th 7-139.3 2nd 7-169.16 6th 7-126.21 4th 7-140 1st 7-169.17 6th 7-126.22 4th 7-141 1st 7-169.18 6th 7-126.23 5th 7-142 1st 7-169.19 7th 7-126.24 4th 7-143 1st 7-169.20 5th 7-126.25 8th 7-144 1st 7-169.21 5th 7-126.26 5th 7-145 1st 7-169.22 6th 7-126.27 5th 7-146 1st 7-169.23 6th 7-126.28 3rd 7-147 1st 7-169.24 6th 7-126.29 5th 7-148 1st 7-169.25 4th 7-126.30 5th 7-149 11th* 7-169.26 4th 7-126.31 4th 7-149.1 3rd* 7-169.27 2nd 7-126.32 4th 7-150 4th* 7-169.28 2nd 7-126.33 4th 7-151 1st 7-169.29 4th 7-126.34 4th 7-152 32nd* 7-169.30 4th 7-126.35 6th 7-152.1 12th* 7-169.31 4th 7-126.36 2nd 7-153 22nd* 7-169.32 4th 7-126.37 4th 7-153.1 12th* 7-169.33 6th 7-126.38 4th 7-153.2 12th* 7-169.34 4th 7-126.39 4th 7-153.3 2nd 7-169.35 4th 7-126.40 4th 7-154 15th 7-169.36 6th 7-126.41 2nd 7-154.1 6th 7-169.37 6th 7-126.42 4th 7-155 4th 7-169.38 4th 7-126.43 4th 7-156 4th 7-169.39 4th 7-169.40 4th 7-126.44 4th 7-157 4th 7-126.45 4th 7-169.41 2nd 7-158 4th 7-126.46 4th 7-169.42 2nd 7-126.47 4th 7-159 4th 7-169.43 4th 7-126.48 4th 7-160 4th 7-169.44 4th 7-126.49 2nd 7-161 4th 7-169.45 4th 7-126.50 4th 7-162 4th 7-169.46 4th 7-127 Original 7-163 4th 7-170 9th 7-128 Original 7-164 4th 7-171 4th 7-129 Original 7-165 4th 7-172 5th 7-130 12th 7-166 4th 7-173 3rd 7-131 14th 7-167 4th 7-174 Original 7-132 7th 7-168 4th 7-175 1st 7-133 6th 7-169 4th 7-176 6th 7-134 3rd 7-169.1 5th 7-177 3rd 7-169.2 5th 7-169.3 5th

* New or Revised Page

(This page filed under Transmittal No. 3436 )

Issued: October 12, 2016 Effective: October 27, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 1.7.1

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 7-178 2nd 7-179 3rd 7-180 1st 7-181 3rd 7-182 3rd 7-183 5th 7-184 Original

(This page filed under Transmittal No. 2879 )

Issued: February 21, 2002 Effective: March 8, 2002

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 73rd Revised Page 1.8 Cancels 72nd Revised Page 1.8

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

7-185 24th 7-189.31 4th 7-203 6th 7-186 16th 7-189.32 3rd 7-204 4th 7-186.1 1st 7-189.33 3rd 7-205 4th 7-187 8th 7-189.34 3rd 7-206 4th 7-188 10th 7-189.35 1st 7-207 6th 7-189 8th 7-189.36 1st 7-208 4th 7-189.1 6th 7-189.37 Original 7-209 4th 7-189.2 5th 7-189.38 1st 7-209.1 6th 7-189.3 6th 7-189.39 5th 7-209.2 7th 7-189.4 10th 7-189.40 13th 7-209.3 5th 7-189.5 9th 7-189.41 5th 7-209.4 5th 7-189.6 10th 7-189.42 7th 7-209.4.1 7th 7-189.7 5th 7-189.43 Original 7-209.4.2 8th 7-189.8 6th 7-189.44 Original 7-209.4.3 6th 7-189.9 8th 7-189.45 Original 7-209.4.4 6th 7-189.10 6th 7-189.46 Original 7-209.4.5 5th 7-189.11 7th 7-189.47 Original 7-209.4.6 7th 7-189.12 12th 7-189.48 Original 7-209.4.7 5th 7-189.13 13th 7-189.49 3rd 7-209.4.8 5th 7-189.14 20th 7-189.50 3rd 7-209.4.9 3rd 7-189.15 9th 7-189.51 3rd 7-209.4.10 5th 7-189.16 3rd 7-189.52 3rd 7-209.4.11 3rd 7-189.17 10th 7-189.53 8th 7-209.4.12 3rd 7-189.18 3rd 7-189.54 6th* 7-209.4.13 3rd 7-189.19 5th 7-189.55 4th* 7-209.4.14 5th 7-189.20 5th 7-190 4th 7-209.4.15 3rd 7-189.21 6th 7-191 6th 7-209.4.16 3rd 7-189.22 5th 7-192 4th 7-209.4.17 3rd 7-189.23 5th 7-193 4th 7-209.4.18 5th 7-189.24 4th 7-194 4th 7-209.4.19 3rd 7-189.25 2nd 7-195 6th 7-209.4.20 3rd 7-189.26 3rd 7-196 4th 7-209.4.21 1st 7-189.27 2nd 7-197 4th 7-209.4.22 3rd 7-189.28 3rd 7-198 4th 7-209.4.23 1st 7-189.29 2nd 7-199 5th 7-209.4.24 1st 7-189.30 2nd 7-200 4th 7-209.4.25 1st 7-201 4th

* New or Revised Page

(This page filed under Transmittal No. 3386 )

Issued: January 15, 2014 Effective: January 16, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 1.8.1 Cancels 1st Revised Page 1.8.1

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

7-209.4.26 3rd* 7-209.4.27 1st 7-209.4.28 1st 7-209.4.29 1st 7-209.4.30 3rd* 7-209.4.31 1st 7-209.4.32 1st 7-209.4.33 2nd 7-209.4.34 2nd 7-209.4.35 2nd 7-209.4.36 2nd 7-209.4.37 2nd 7-209.4.38 2nd 7-209.4.39 2nd 7-209.4.40 2nd 7-209.4.41 2nd 7-209.4.42 2nd 7-209.4.43 4th* 7-209.4.44 4th* 7-209.4.45 2nd 7-209.4.46 2nd 7-209.4.47 2nd 7-209.4.48 2nd

*New or Revised Page.

(This page filed under Transmittal No. 3317 )

Issued: March 10, 2011 Effective: March 25, 2011

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 61st Revised Page 1.9 Cancels 60th Revised Page 1.9

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 7-209.4.49 2nd 7-209.4.92 Original 7-209.4.135 Original 7-209.4.50 2nd 7-209.4.93 Original 7-209.4.136 Original 7-209.4.51 2nd 7-209.4.94 Original 7-209.4.137 Original 7-209.4.52 2nd 7-209.4.95 2nd* 7-209.4.138 Original 7-209.4.53 2nd 7-209.4.96 2nd* 7-209.4.139 Original 7-209.4.54 2nd 7-209.4.97 Original 7-209.4.140 Original 7-209.4.55 2nd 7-209.4.98 Original 7-209.4.141 Original 7-209.4.56 2nd 7-209.4.99 Original 7-209.4.142 Original 7-209.4.57 2nd 7-209.4.100 Original 7-209.4.143 Original 7-209.4.58 2nd 7-209.4.101 Original 7-209.4.144 Original 7-209.4.59 2nd 7-209.4.102 Original 7-209.4.145 Original 7-209.4.60 2nd 7-209.4.103 Original 7-209.4.146 Original 7-209.4.61 Original 7-209.4.104 Original 7-209.4.147 2nd* 7-209.4.62 Original 7-209.4.105 Original 7-209.4.148 2nd* 7-209.4.63 Original 7-209.4.106 Original 7-209.4.149 Original 7-209.4.64 Original 7-209.4.107 Original 7-209.4.150 Original 7-209.4.65 Original 7-209.4.108 Original 7-209.4.151 Original 7-209.4.66 Original 7-209.4.109 Original 7-209.4.152 Original 7-209.4.67 Original 7-209.4.110 Original 7-209.4.153 Original 7-209.4.68 Original 7-209.4.111 Original 7-209.4.154 Original 7-209.4.69 2nd* 7-209.4.112 Original 7-209.4.155 Original 7-209.4.70 2nd* 7-209.4.113 Original 7-209.4.156 Original 7-209.4.71 Original 7-209.4.114 Original 7-209.4.157 Original 7-209.4.72 Original 7-209.4.115 Original 7-209.4.158 Original 7-209.4.73 Original 7-209.4.116 Original 7-209.4.159 Original 7-209.4.74 Original 7-209.4.117 Original 7-209.4.160 Original 7-209.4.75 Original 7-209.4.118 Original 7-209.4.161 Original 7-209.4.76 Original 7-209.4.119 Original 7-209.4.162 Original 7-209.4.77 Original 7-209.4.120 Original 7-209.4.163 1st 7-209.4.78 Original 7-209.4.121 2nd* 7-209.4.164 2nd 7-209.4.79 Original 7-209.4.122 2nd* 7-209.4.165 1st 7-209.4.80 Original 7-209.4.123 Original 7-209.4.166 1st 7-209.4.81 Original 7-209.4.124 Original 7-209.4.167 1st 7-209.4.82 Original 7-209.4.125 Original 7-209.4.168 1st 7-209.4.83 Original 7-209.4.126 Original 7-209.4.169 1st 7-209.4.84 Original 7-209.4.127 Original 7-209.4.170 1st 7-209.4.85 Original 7-209.4.128 Original 7-209.4.171 1st 7-209.4.86 Original 7-209.4.129 Original 7-209.4.172 1st 7-209.4.87 Original 7-209.4.130 Original 7-209.4.173 3rd* 7-209.4.88 Original 7-209.4.131 Original 7-209.4.174 3rd* 7-209.4.89 Original 7-209.4.132 Original 7-209.4.175 1st 7-209.4.90 Original 7-209.4.133 Original 7-209.4.176 1st 7-209.4.91 Original 7-209.4.134 Original 7-209.4.177 1st

*New or Revised Page.

(This page filed under Transmittal No. 3317 )

Issued: March 10, 2011 Effective: March 25, 2011

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 1.9.1 Cancels 7th Revised Page 1.9.1

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 7-209.4.178 1st 7-209.4.224 2nd 7-209.34 3rd 7-209.4.179 1st 7-209.4.225 4th* 7-209.35 3rd 7-209.4.180 1st 7-209.4.226 4th* 7-209.36 3rd 7-209.4.181 1st 7-209.4.227 2nd 7-209.37 3rd 7-209.4.182 1st 7-209.4.228 2nd 7-209.38 3rd 7-209.4.183 1st 7-209.4.229 2nd 7-209.39 3rd 7-209.4.184 1st 7-209.4.230 2nd 7-209.40 3rd 7-209.4.185 1st 7-209.4.231 2nd 7-209.41 3rd 7-209.4.186 1st 7-209.4.232 2nd 7-209.42 3rd 7-209.4.187 1st 7-209.4.233 2nd 7-209.43 2nd 7-209.4.188 1st 7-209.4.234 2nd 7-209.44 1st 7-209.4.189 Original 7-209.4.235 2nd 7-209.45 1st 7-209.4.190 Original 7-209.4.236 2nd 7-209.46 1st 7-209.4.191 Original 7-209.4.237 2nd 7-209.47 1st 7-209.4.192 Original 7-209.4.238 2nd 7-209.48 1st 7-209.4.193 Original 7-209.4.239 2nd 7-209.49 1st 7-209.4.194 Original 7-209.4.240 2nd 7-209.50 1st 7-209.4.195 Original 7-209.5 7th 7-209.51 1st 7-209.4.196 Original 7-209.6 8th 7-209.52 1st 7-209.4.197 Original 7-209.7 9th 7-209.53 1st 7-209.4.198 Original 7-209.8 9th 7-209.54 1st 7-209.4.199 2nd* 7-209.9 8th 7-209.55 1st 7-209.4.200 2nd* 7-209.10 8th 7-209.56 1st 7-209.4.201 Original 7-209.11 8th 7-209.57 1st 7-209.4.202 Original 7-209.12 8th 7-209.58 1st 7-209.4.203 Original 7-209.13 8th 7-209.59 1st 7-209.4.204 Original 7-209.14 8th 7-209.60 1st 7-209.4.205 Original 7-209.15 5th 7-209.61 1st 7-209.4.206 Original 7-209.16 10th 7-209.62 1st 7-209.4.207 Original 7-209.17 5th 7-209.63 1st 7-209.4.208 Original 7-209.18 5th 7-209.64 1st 7-209.4.209 Original 7-209.19 5th 7-209.65 1st 7-209.4.210 Original 7-209.20 5th 7-209.66 1st 7-209.4.211 Original 7-209.21 5th 7-209.67 1st 7-209.4.212 Original 7-209.22 5th 7-209.68 1st 7-209.4.213 Original 7-209.23 5th 7-209.69 1st 7-209.4.214 Original 7-209.24 4th 7-209.70 1st 7-209.4.215 2nd 7-209.25 5th 7-209.71 1st 7-209.4.216 2nd 7-209.26 4th 7-209.72 1st 7-209.4.217 2nd 7-209.27 5th 7-209.73 1st 7-209.4.218 2nd 7-209.28 5th 7-209.75 1st 7-209.4.219 2nd 7-209.29 3rd 7-209.76 1st 7-209.4.220 2nd 7-209.30 3rd 7-209.77 1st 7-209.4.221 2nd 7-209.31 3rd 7-209.78 1st 7-209.4.222 2nd 7-209.32 3rd 7-209.79 1st 7-209.4.223 2nd 7-209.33 3rd 7-209.80 1st

(This page filed under Transmittal No. 3317 )

Issued: March 10, 2011 Effective: March 25, 2011

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 104th Revised Page 1.10 Cancels 103rd Revised Page 1.10

ACCESS SERVICE

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 7-209.81 1st 7-209.129 Original 7-209.177 Original 7-209.82 1st 7-209.130 Original 7-209.178 Original 7-209.83 1st 7-209.131 Original 7-209.179 Original 7-209.84 1st 7-209.132 Original 7-209.180 Original 7-209.85 1st 7-209.133 Original 7-209.181 Original 7-209.86 1st 7-209.134 Original 7-209.182 Original 7-209.87 1st 7-209.135 Original 7-209.183 Original 7-209.88 1st 7-209.136 Original 7-209.184 Original 7-209.89 Original 7-209.137 Original 7-209.185 Original 7-209.90 Original 7-209.138 Original 7-209.186 Original 7-209.91 Original 7-209.139 Original 7-209.187 Original 7-209.92 Original 7-209.140 Original 7-209.188 Original 7-209.93 Original 7-209.141 Original 7-209.189 Original 7-209.94 Original 7-209.142 Original 7-209.190 Original 7-209.95 Original 7-209.143 Original 7-209.191 Original 7-209.96 Original 7-209.144 Original 7-209.192 Original 7-209.97 Original 7-209.145 Original 7-209.193 Original 7-209.98 Original 7-209.146 Original 7-209.194 Original 7-209.99 Original 7-209.147 Original 7-209.195 2nd* 7-209.100 Original 7-209.148 Original 7-209.196 Original 7-209.101 Original 7-209.149 Original 7-209.197 Original 7-209.102 Original 7-209.150 Original 7-209.198 Original 7-209.103 Original 7-209.151 Original 7-209.199 Original 7-209.104 Original 7-209.152 Original 7-209.200 Original 7-209.105 Original 7-209.153 Original 7-209.201 Original 7-209.106 Original 7-209.154 Original 7-209.202 Original 7-209.107 Original 7-209.155 Original 7-209.203 Original 7-209.108 Original 7-209.156 Original 7-209.204 Original 7-209.109 Original 7-209.157 Original 7-209.205 Original 7-209.110 Original 7-209.158 Original 7-209.206 Original 7-209.111 Original 7-209.159 Original 7-209.207 Original 7-209.112 Original 7-209.160 Original 7-209.208 Original 7-209.113 Original 7-209.161 Original 7-209.209 1st* 7-209.114 Original 7-209.162 Original 7-209.210 1st* 7-209.115 Original 7-209.163 Original 7-209.211 1st* 7-209.116 Original 7-209.164 Original 7-209.212 1st* 7-209.117 Original 7-209.165 Original 7-209.213 1st* 7-209.118 Original 7-209.166 Original 7-209.214 1st* 7-209.119 Original 7-209.167 Original 7-209.215 1st* 7-209.120 Original 7-209.168 Original 7-209.216 1st* 7-209.121 Original 7-209.169 Original 7-209.217 1st* 7-209.122 1st 7-209.170 Original 7-209.218 1st* 7-209.123 Original 7-209.171 Original 7-209.219 1st* 7-209.124 Original 7-209.172 Original 7-209.220 1st* 7-209.125 Original 7-209.173 Original 7-209.221 1st* 7-209.126 Original 7-209.174 Original 7-209.222 1st* 7-209.127 Original 7-209.175 Original 7-209.223 1st* 7-209.128 Original 7-209.176 Original 7-209.224 Original*

(This page filed under Transmittal No. 2879 )

Issued: February 21, 2002 Effective: March 8, 2002

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 52nd Revised Page 1.10.1 Cancels 51st Revised Page 1.10.1

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

7-209.225 Original 8-2 3rd 9-18 2nd 7-209.226 Original 8-3 Original 9-18.1 1st 7-209.227 Original 8-4 Original 9-19 4th 7-209.228 Original 8-5 Original 9-20 7th 7-209.229 Original 8-6 Original 9-21 3rd 7-209.230 Original 8-7 Original 9-22 20th 7-209.231 Original 8-8 Original 9-22.1 10th 7-209.232 Original 8-9 Original 9-22.2 26th 7-209.233 Original 8-10 Original 10-1 9th 7-209.234 Original 8-11 Original 10-2 8th 7-209.235 Original 8-12 1st 10-2.1 2nd 7-209.236 Original 8-13 Original 10-3 5th 7-209.237 Original 8-14 Original 10-4 1st 7-209.238 Original 8-15 Original 10-5 Original 7-210 5th 8-16 Original 10-6 Original 7-211 6th 8-17 Original 10-7 Original 7-212 6th 8-17 Original 10-8 Original 7-212.1 5th 8-18 Original 10-9 Original 7-212.2 5th 8-19 Original 10-10 1st 7-212.2.1 5th 8-20 Original 10-11 Original 7-212.2.2 5th 8-21 2nd* 10-12 2nd 7-212.2.3 5th 8-22 2nd 10-13 1st 7-212.2.4 4th 8-23 3rd 10-13.1 3rd 7-212.3 2nd 8-24 4th 10-13.2 Original 7-212.4 2nd 8-25 Original 10-13.3 1st 7-212.5 3rd 8-26 Original 10-13.4 1st 7-212.6 3rd 8-27 Original 10-13.5 4th 7-212.6.1 5th 8-28 4th* 10-13.6 1st 7-212.6.2 5th 8-29 2nd 10-13.7 Original 7-212.6.3 2nd 8-30 2nd 10-13.8 Original 7-212.6.4 2nd 9-1 1st 10-13.9 1st 7-212.6.5 2nd 9-2 3rd 10-13.10 1st 7-212.6.6 2nd 9-3 2nd 10-14 3rd 7-212.6.7 2nd 9-4 2nd 10-15 Original 7-212.6.8 2nd 9-5 2nd 10-16 1st 7-212.6.9 2nd 9-5.1 1st 10-17 Original 7-212.6.10 2nd 9-6 1st 10-18 1st 7-212.6.11 2nd 9-7 2nd 10-18.1 11th 7-212.7 6th 9-8 2nd 10-18.2 7th 7-212.8 5th 9-9 Original 10-18.3 5th 7-212.9 3rd 9-10 1st 10-18.4 5th 7-213 7th 9-11 2nd 10-18.5 2nd 7-214 4th 9-12 Original 10-18.5.1 Original 7-215 3rd 9-13 1st 10-18.5.2 1st 7-216 3rd 9-14 1st 7-217 3rd 9-15 3rd 7-218 3rd 9-16 2nd 7-219 3rd 9-17 4th 7-220 3rd 9-17.1 1st 7-221 2nd 9-17.2 2nd 7-222 2nd 9-17.3 4th 7-223 2nd 9-17.4 4th 8-1 3rd 9-17.5 3rd

* New or Revised Page.

(This page filed under Transmittal No. 3437 )

Issued: December 1, 2016 Effective: December 16, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 156th Revised Page 1.11 Cancels 155th Revised Page 1.11

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

10-19 Original 12-4 2nd 13-8 1st 10-20 Original 12-5 2nd 13-9 1st 10-21 1st 12-6 3rd 13-10 1st 10-22 1st 12-7 5th 13-11 1st 10-23 Original 12-8 2nd 13-12 1st 10-23.1 8th 12-9 9th 13-13 1st 10-23.1.1 Original 12-9.1 3rd* 13-13.1 3rd 10-23.1.2 Original 12-10 5th 13-13.2 4th 10-23.1.3 Original 12-11 1st 13-13.3 4th 10-23.1.4 Original 12-12 1st 13-13.4 3rd 10-23.1.5 Original 12-13 1st 13-14 2nd 10-23.1.6 Original 12-14 1st 13-15 1st 10-23.2 4th 12-15 1st 13-16 1st 10-23.2.1 Original 12-16 15th 13-17 1st 10-23.3 Original 12-17 1st 13-18 2nd 10-23.4 Original 12-18 1st 13-18.1 2nd 10-23.5 Original 12-19 1st 13-18.2 1st 10-23.6 Original 12-20 7th 13-18.3 4th 10-23.7 2nd 12-21 5th 13-18.4 4th 10-23.8 3rd 12-22 3rd 13-18.5 4th 10-23.9 2nd 12-23 5th 13-18.6 4th 10-23.10 2nd 12-24 4th 13-18.7 3rd 10-23.11 2nd 12-25 4th 13-18.8 7th 10-23.12 2nd 12-26 5th 13-18.9 1st 10-24 1st 12-27 10th 13-18.10 3rd 10-25 5th 12-28 2nd 13-19 2nd 11-1 9th 12-29 8th 13-20 6th 11-2 10th 12-29.1 2nd 13-21 7th 11-3 11th 12-30 1st 13-22 3rd 11-3.1 2nd 12-31 2nd 13-22.1 8th 11-4 10th 12-32 9th 13-22.2 11th 11-5 10th 12-33 3rd 13-22.3 5th 11-6 9th 12-34 3rd 13-22.4 4th 11-7 10th 12-35 3rd 13-22.5 3rd 11-8 10th 12-36 1st 13-23 2nd* 11-9 11th 12-37 1st 13-24 2nd 11-10 14th 12-38 2nd 13-25 2nd 11-11 13th 12-39 2nd 13-26 1st 11-12 10th 12-40 1st 13-26.1 3rd 11-13 10th 12-41 3rd 13-27 1st 11-14 10th 13-1 20th 13-28 1st 11-15 13th 13-2 9th 13-29 1st 11-16 3rd 13-2.1 11th* 13-30 1st 11-17 5th 13-3 4th* 13-31 Original 11-18 4th 13-4 4th 13-32 4th 11-19 3rd 13-5 5th 13-33 Original 12-1 Original 13-6 Original 13-34 4th 12-2 Original 13-7 3rd 12-3 1st

* New or Revised Page (This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 30th Revised Page 1.11.1 Cancels 29th Revised Page 1.11.1

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

13-34.1 5th 13-43 3rd 13-60 1st* 13-34.2 3rd 13-44 3rd 13-61 11th 13-34.3 3rd 13-45 3rd 13-62 1st 13-34.4 2nd 13-46 Original 13-63 9th 13-34.5 Original 13-47 2nd 13-64 Original 13-34.6 Original 13-48 2nd 13-65 1st 13-34.7 Original 13-49 Original 14-1 9th 13-34.8 1st 13-50 Original 14-2 13th 13-34.9 4th 13-51 Original 14-2.1 9th 13-34.10 1st 13-52 Original 14-2.2 9th 13-34.11 1st 13-53 1st 14-2.3 3rd 13-34.12 Original 13-54 1st 14-2.4 1st 13-34.13 Original 13-55 4th 14-2.5 2nd 13-35 1st 13-56 1st* 14-2.6 1st 13-36 4th 13-57 Original 14-2.7 4th 13-37 11th 13-58 1st* 13-37.1 2nd 13-59 1st* 13-37.2 2nd 13-37.3 2nd 13-37.4 2nd 13-38 3rd 13-39 8th 13-40 2nd 13-41 3rd 13-42 3rd

* New or Revised Page

(This page filed under Transmittal No. 3437 )

Issued: December 1, 2016 Effective: December 16, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 63rd Revised Page 1.12 Cancels 62nd Revised Page 1.12

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

14-3 2nd 14-37.1 9th 14-55.6 6th 14-4 5th* 14-37.2 13th 14-55.7 6th 14-5 5th* 14-37.3 4th 14-55.8 13th 14-6 5th* 14-38 10th 14-55.9 3rd 14-7 8th* 14-39 7th 14-55.10 3rd 14-8 10th* 14-40 4th 14-55.11 3rd 14-8.1 5th* 14-41 4th 14-56 10th* 14-8.2 5th* 14-42 7th 14-57 8th* 14-9 6th* 14-43 9th 14-58 4th 14-10 5th* 14-44 13th 14-59 4th 14-11 3rd* 14-44.1 7th 14-60 6th* 14-12 6th* 14-45 2nd 14-60.1 5th* 14-13 4th* 14-46 3rd 14-61 5th* 14-14 4th* 14-46.1 4th 14-62 6th* 14-15 6th* 14-46.2 3rd 14-62.1 5th* 14-16 5th* 14-46.3 4th 14-62.2 5th* 14-17 4th* 14-47 6th 14-62.3 5th* 14-18 4th* 14-48 10th 14-63 6th* 14-19 4th* 14-49 8th 14-64 9th* 14-20 3rd* 14-50 8th 14-65 4th* 14-21 3rd* 14-50.1 3rd 14-66 4th* 14-22 3rd* 14-51 11th 14-67 5th* 14-23 3rd* 14-52 6th 14-68 7th* 14-24 3rd* 14-53 7th 14-69 8th* 14-25 3rd* 14-54 5th 14-70 4th 14-26 5th* 14-54.1 10th 14-71 5th 14-27 9th* 14-54.2 10th 14-71.1 6th* 14-28 7th* 14-54.3 5th 14-71.2 7th* 14-29 7th* 14-55 11th 14-71.3 5th* 14-30 7th* 14-55.1 5th 14-71.4 4th* 14-31 4th* 14-55.2 3rd 14-72 7th* 14-32 4th* 14-55.3 3rd 14-73 9th* 14-33 5th* 14-55.4 3rd 14-74 5th* 14-34 3rd* 14-55.5 6th 14-75 4th* 14-35 3rd* 14-76 6th* 14-36 8th* 14-36.1 5th 14-37 8th

(This page filed under Transmittal No. 3008 )

Issued: September 21, 2004 Effective: October 6, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 88th Revised Page 1.13 Cancels 87th Revised Page 1.13

ACCESS SERVICE

CHECK SHEET (Cont’d)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

14-77 4th* 14-124 4th* 14-159 1st 14-78 4th* 14-125 7th 14-160 1st 14-79 5th* 14-125.1 6th 14-161 1st 14-80 6th* 14-125.2 6th 14-162 1st 14-81 7th* 14-125.3 6th 14-163 4th 14-82 3rd 14-125.4 1st 14-164 2nd 14-83 3rd 14-126 10th 14-165 1st 14-84 5th* 14-126.1 8th 14-166 3rd 14-84.1 5th* 14-127 3rd 14-167 2nd 14-85 4th* 14-128 5th 14-168 5th 14-86 4th* 14-129 1st 14-169 3rd 14-87 4th* 14-130 4th 14-170 3rd 14-88 5th* 14-131 4th 14-171 3rd 14-89 4th* 14-132 4th 14-172 3rd 14-90 3rd* 14-133 4th 14-172.1 5th 14-91 5th* 14-134 4th 14-173 5th 14-92 3rd* 14-135 4th 14-174 4th 14-93 3rd* 14-136 4th 14-175 1st 14-94 4th* 14-137 2nd 14-176 1st 14-95 6th* 14-138 2nd 14-177 1st 14-96 7th* 14-139 2nd 14-178 1st 14-97 3rd 14-139.1 2nd 14-179 1st 14-98 3rd 14-139.2 1st 14-180 2nd 14-99 5th* 14-139.3 1st 14-181 2nd 14-99.1 5th* 14-139.4 5th 14-182 1st 14-100 4th* 14-140 6th 14-183 1st 14-101 4th* 14-140.1 1st 14-184 1st 14-102 4th* 14-141 4th 14-185 1st 14-103 4th* 14-142 1st 14-186 1st 14-104 4th* 14-143 1st 14-187 1st 14-105 3rd* 14-144 2nd 14-188 1st 14-106 5th* 14-144.1 1st 14-189 3rd 14-107 3rd* 14-145 3rd 14-190 1st 14-108 3rd* 14-146 2nd 14-191 1st 14-109 4th* 14-147 3rd 14-192 2nd 14-110 6th* 14-147.1 2nd 14-193 2nd 14-111 7th* 14-148 1st 14-194 2nd 14-112 3rd 14-149 4th 14-194.1 5th 14-113 3rd 14-150 1st 14-195 6th 14-114 5th* 14-151 1st 14-195.1 1st 14-114.1 5th* 14-152 2nd 14-196 1st 14-115 4th* 14-152.1 1st 14-197 1st 14-116 4th* 14-152.2 2nd 14-198 2nd 14-117 4th* 14-153 1st 14-199 1st 14-118 4th* 14-154 2nd 14-119 4th* 14-155 3rd 14-120 3rd* 14-156 2nd 14-121 5th* 14-157 1st 14-122 3rd* 14-158 1st 14-123 3rd*

(This page filed under Transmittal No. 3008 )

Issued: September 21, 2004 Effective: October 6, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 36th Revised Page 1.13.1 Cancels 35th Revised Page 1.13.1

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

14-200 1st 15-13 1st 14-201 3rd 15-14 1st 14-202 1st 16-1 1st 14-203 3rd 16-2 3rd* 14-204 4th 16-3 10th 14-204.1 3rd 16-4 1st* 14-204.2 1st 16-5 3rd 14-205 4th 16-6 1st 14-205.1 1st 16-7 4th 14-205.2 1st 16-8 2nd 14-206 4th 16-9 1st 16-10 2nd 14-206.1 9th 16-11 2nd 14-206.2 9th 16-12 Original 14-206.3 4th 16-13 Original 14-206.4 4th 16-14 Original 14-206.5 2nd 16-15 Original 14-206.6 4th 16-16 1st 14-206.7 4th 16-17 1st* 14-206.8 9th 14-206.9 4th 16-18 3rd 14-206.10 4th 16-19 2nd 14-206.11 4th 16-20 20th* 14-206.12 4th 17-1 3rd 14-206.13 1st 17-2 6th 14-206.14 4th 17-3 3rd 14-206.15 4th 14-206.16 4th 14-206.17 4th 14-206.18 4th 14-207 3rd 14-208 1st 14-209 1st 14-210 3rd 15-1 1st 15-2 1st 15-3 1st 15-4 1st 15-5 1st 15-6 1st 15-7 1st 15-8 1st 15-9 1st 15-10 1st 15-11 1st 15-12 1st

* New or Revised Page (This page filed under Transmittal No. 3433 )

Issued: August 29, 2016 Effective: September 13, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 93rd Revised Page 1.14 Cancels 92nd Revised Page 1.14

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

17-4 2nd 18-28 2nd* 19-24 2nd 17-5 6th 18-28.1 4th* 19-24.1 1st 17-6 3rd 18-28.2 3rd* 19-24.2 Original 17-7 3rd 18-29 3rd* 19-25 14th 17-8 2nd 18-30 10th* 19-25.1 6th 17-9 6th 18-31 10th* 19-25.2 Original 17-10 3rd 18-31.1 2nd* 19-26 4th 17-11 3rd 18-31.2 5th 19-27 2nd 17-12 3rd 18-32 13th 19-28 2nd 17-13 3rd 18-33 7th 19-29 1st 17-14 2nd 18-34 9th 19-30 1st 17-15 3rd 18-35 8th 19-31 1st 17-16 3rd 18-36 8th 19-32 3rd 17-17 5th 18-37 10th 19-33 6th 18-1 2nd 19-1 11th 19-34 4th 18-2 9th* 19-2 Original 19-35 5th 18-3 1st 19-3 16th 19-36 6th 18-4 3rd 19-3.1 Original 19-36.1 4th 18-5 1st 19-4 4th 19-36.2 Original 18-6 2nd 19-5 4th 19-36.3 2nd 18-7 2nd 19-6 Original 19-36.4 4th 18-8 1st 19-7 3rd 19-36.5 3rd 18-9 3rd 19-8 1st 19-36.6 3rd 18-10 4th 19-9 4th 19-36.7 3rd 18-11 3rd 19-10 5th 19-36.8 5th 18-11.1 Original 19-11 2nd 19-36.9 5th 18-12 5th 19-12 7th 19-36.10 5th 18-13 1st 19-12.1 5th 19-36.11 4th 18-14 1st 19-12.2 4th 19-36.12 3rd 18-15 11th 19-13 4th 19-36.13 3rd 18-16 2nd* 19-14 2nd 19-36.14 3rd 18-17 3rd* 19-15 1st 19-36.15 3rd 18-18 5th* 19-15.1 2nd 19-36.16 3rd 18-19 6th* 19-16 5th 19-36.17 3rd 18-20 6th* 19-17 2nd 19-36.18 3rd 18-21 3rd* 19-18 3rd 19-37 6th 18-22 5th* 19-19 2nd 19-38 5th 18-23 6th* 19-20 4th 19-39 5th 18-24 5th* 19-21 Original 19-40 5th 18-25 6th* 19-22 4th 19-40.1 1st 18-26 7th* 19-23 2nd 18-27 2nd*

* New or Revised Page

(This page filed under Transmittal No. 3437 )

Issued: December 1, 2016 Effective: December 16, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 45th Revised Page 1.15 Cancels 44th Revised Page 1.15

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

19-40.2 1st 19-78 1st 19-118 1st 19-41 12th* 19-79 1st 19-119 1st 19-42 6th 19-80 1st 19-120 1st 19-43 5th 19-80.1 3rd* 19-121 1st 19-44 5th 19-80.2 3rd* 19-122 3rd* 19-45 5th 19-81 5th* 19-123 3rd* 19-45.1 1st 19-82 1st 19-124 5th* 19-45.2 1st 19-83 1st 19-125 1st 19-46 11th* 19-84 2nd 19-126 1st 19-47 2nd 19-85 1st 19-127 1st 19-47.1 1st 19-85.1 3rd* 19-128 1st 19-48 1st 19-85.2 3rd* 19-129 3rd* 19-49 1st 19-86 5th* 19-130 3rd* 19-50 1st 19-87 2nd* 19-131 5th* 19-51 5th* 19-88 1st 19-132 2nd 19-52 2nd 19-89 1st 19-133 2nd 19-53 1st 19-90 1st 19-134 2nd 19-54 1st 19-91 1st 19-135 2nd 19-55 1st 19-92 3rd* 19-136 4th* 19-56 5th* 19-93 3rd* 19-137 4th* 19-56.1 1st 19-94 5th* 19-138 6th* 19-57 1st 19-95 1st 19-139 2nd 19-58 1st 19-96 1st 19-140 2nd 19-59 2nd 19-97 1st 19-141 2nd 19-60 1st 19-98 1st 19-142 2nd 19-61 5th* 19-99 3rd* 19-143 4th* 19-62 1st 19-100 3rd* 19-144 4th* 19-63 1st 19-101 5th* 19-145 6th* 19-64 2nd 19-102 2nd* 19-146 1st 19-65 1st 19-103 1st 19-147 1st 19-66 5th* 19-104 1st 19-148 1st 19-66.1 1st 19-105 1st 19-149 1st 19-67 1st 19-106 1st 19-150 3rd* 19-68 1st 19-107 3rd* 19-151 3rd* 19-69 1st 19-108 3rd* 19-152 5th* 19-70 1st 19-109 5th* 19-153 1st 19-71 5th* 19-110 1st 19-154 1st 19-72 1st 19-111 1st 19-155 1st 19-73 1st 19-112 1st 19-156 1st 19-74 1st 19-113 1st 19-157 3rd* 19-75 1st 19-114 3rd* 19-158 3rd* 19-76 5th* 19-115 3rd* 19-159 5th* 19-76.1 1st 19-116 5th* 19-160 2nd* 19-77 1st 19-117 2nd*

(This page filed under Transmittal No. 3361 )

Issued: November 19, 2012 Effective: December 4, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 50th Revised Page 1.16 Cancels 49th Revised Page 1.16

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Revision Revision Except as Except as Page Indicated Page Indicated

19-161 1st 19-209 1st 19-162 1st 19-210 1st 19-163 1st 19-211 1st 19-164 1st 19-212 1st 19-165 3rd* 19-213 1st 19-166 3rd* 19-214 1st 19-167 5th* 19-215 1st 19-168 1st 19-216 1st 19-169 1st 19-217 1st 19-170 1st 19-218 1st 19-171 1st 19-219 1st 19-172 3rd* 19-220 1st 19-173 3rd* 19-221 1st 19-174 5th* 19-222 1st 19-175 2nd* 19-223 1st 19-176 1st 19-224 1st 19-177 1st 19-225 3rd* 19-178 1st 19-226 3rd* 19-179 1st 19-227 3rd* 19-180 3rd* 19-228 1st 19-181 3rd* 19-229 1st 19-182 5th* 19-230 1st 19-183 1st 19-231 1st 19-184 1st 19-232 3rd* 19-185 1st 19-233 3rd* 19-186 2nd 19-234 4th* 19-187 3rd* 19-235 2nd* 19-188 3rd* 19-236 1st 19-189 4th* 19-237 1st 19-190 2nd* 19-238 1st 19-191 1st 19-239 1st 19-192 1st 19-240 3rd* 19-193 1st 19-241 3rd* 19-194 1st 19-242 4th* 19-195 3rd* 19-243 1st 19-196 3rd* 19-244 1st 19-197 5th* 19-245 1st 19-198 1st 19-246 1st 19-199 1st 19-247 3rd* 19-200 1st 19-248 3rd* 19-201 1st 19-249 4th* 19-202 3rd* 19-250 2nd* 19-203 3rd* 19-251 1st 19-204 4th* 19-252 1st 19-205 2nd* 19-206 1st 19-207 1st 19-208 1st

*New or Revised Page.

(This page filed under Transmittal No. 3361 )

Issued: November 19, 2012 Effective: December 4, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 21st Revised Page 1.16.1 Cancels 20th Revised Page 1.16.1

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Revision Revision Except as Except as Page Indicated Page Indicated

20-1 9th 20-35 2nd 20-2 5th 20-36 8th 20-3 4th 20-36.1 1st 20-4 Original 20-36.2 3rd 20-5 6th 20-37 4th 20-6 5th 20-38 4th 20-7 Original 20-38.1 4th 20-8 Original 20-38.2 Original 20-9 1st 20-38.3 Original 20-10 2nd 20-38.4 Original 20-11 8th 20-39 1st 20-12 1st 20-40 1st 20-13 4th 20-41 2nd 20-14 Original 20-41.1 1st 20-14.1 2nd 20-41.2 Original 20-15 5th 20-41.3 1st 20-16 15th* 20-41.4 2nd 20-16.1 Original 20-42 31st* 20-17 Original 20-42.1 14th 20-18 Original 20-43 29th 20-19 2nd 20-44 27th 20-19.1 1st 20-45 23rd 20-20 3rd 20-46 15th 20-21 Original 20-47 7th 20-22 4th 20-47.1 11th 20-23 1st 20-47.2 18th 20-24 1st 20-47.3 17th 20-25 1st 20-47.4 16th 20-26 1st 20-47.5 19th 20-27 Original 20-47.6 15th 20-28 Original 20-47.7 19th 20-29 Original 20-29.1 Original 20-30 6th* 20-31 6th 20-32 8th* 20-33 5th 20-34 Original

* New or Revised Page

(This page filed under Transmittal No. 3397 )

Issued: October 10, 2014 Effective: October 25, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 69th Revised Page 1.17 Cancels 68th Revised Page 1.17

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

20-47.8 19th 20-47.52 6th 20-63 4th 20-47.9 17th 20-47.53 6th 20-64 5th 20-47.10 8th 20-47.54 4th 20-65 Original 20-47.11 11th 20-47.55 4th 20-66 Original 20-47.12 7th 20-47.56 4th 20-67 Original 20-47.13 25th 20-47.57 4th 20-68 Original 20-47.14 26th 20-47.58 5th 20-69 Original 20-47.15 25th 20-47.59 5th 20-70 Original 20-47.16 24th 20-47.60 5th 20-71 Original 20-47.17 29th* 20-47.61 5th 20-72 Original 20-47.18 6th 20-47.62 6th 20-73 Original 20-47.19 6th 20-47.63 6th 20-74 1st 20-47.20 6th 20-47.64 6th 20-75 Original 20-47.21 12th 20-47.65 7th 20-76 Original 20-47.22 11th 20-47.66 2nd 20-77 Original 20-47.23 12th* 20-47.67 1st 20-78 Original 20-47.24 11th 20-47.68 14th 20-79 Original 20-47.25 6th 20-48 6th 20-80 Original 20-47.26 5th 20-49 Original 20-81 4th 20-47.27 4th 20-50 Original 20-82 Original 20-47.28 10th 20-51 Original 20-83 Original 20-47.29 10th 20-52 Original 20-84 Original 20-47.30 10th 20-53 Original 20-85 Original 20-47.31 12th 20-54 Original 20-86 Original 20-47.32 13th 20-55 Original 20-87 1st 20-47.33 10th 20-56 1st 20-88 Original 20-47.34 9th 20-57 Original 20-89 Original 20-47.35 9th 20-58 Original 20-90 Original 20-47.36 6th 20-59 Original 20-91 Original 20-47.37 4th 20-60 Original 20-92 Original 20-47.38 4th 20-61 Original 20-93 Original 20-47.39 5th 20-62 4th 20-94 Original 20-47.40 5th 20-95 Original 20-47.41 5th 20-96 Original 20-47.42 5th 20-97 Original 20-47.43 1st 20-98 Original 20-47.44 1st 20-99 Original 20-47.45 1st 20-100 Original 20-47.46 2nd 20-101 Original 20-47.47 2nd 20-102 Original 20-47.48 2nd 20-47.49 2nd 20-47.50 6th 20-47.51 6th

* New or Revised Page

(This page filed under Transmittal No. 3390 )

Issued: May 23, 2014 Effective: June 7, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 46th Revised Page 1.18 Cancels 45th Revised Page 1.18

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

20-103 Original 20-136 Original 20-169 Original 20-104 Original 20-137 Original 20-170 Original 20-105 Original 20-138 Original 20-171 Original 20-106 Original 20-139 Original 20-172 Original 20-107 Original 20-140 Original 20-173 Original 20-108 Original 20-141 Original 20-174 Original 20-109 Original 20-142 Original 20-175 Original 20-110 Original 20-143 Original 20-176 Original 20-111 Original 20-144 Original 20-177 Original 20-112 Original 20-145 Original 20-178 1st 20-113 Original 20-146 Original 20-179 1st 20-114 Original 20-147 Original 20-180 1st 20-115 Original 20-148 Original 20-181 1st 20-116 Original 20-149 Original 20-182 4th 20-117 Original 20-150 Original 20-183 2nd 20-118 Original 20-151 Original 20-183.1 Original 20-119 Original 20-152 Original 20-183.2 Original 20-120 Original 20-153 Original 20-183.3 Original 20-121 Original 20-154 Original 20-183.4 Original 20-122 Original 20-155 Original 20-183.5 3rd 20-123 Original 20-156 Original 20-183.6 1st 20-124 Original 20-157 Original 20-184 Original 20-125 Original 20-158 Original 20-185 Original 20-126 Original 20-159 Original 20-186 Original 20-127 Original 20-160 Original 20-187 Original 20-128 Original 20-161 Original 20-188 Original 20-129 Original 20-162 Original 20-189 1st 20-130 Original 20-163 Original 20-190 Original 20-131 Original 20-164 Original 20-191 Original 20-132 Original 20-165 Original 20-192 Original 20-133 Original 20-166 Original 20-193 Original 20-134 Original 20-167 Original 20-194 Original 20-135 Original 20-168 Original 20-195 1st

(This page filed under Transmittal No. 2677 )

Issued: December 12, 1997 Effective: December 27, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 45th Revised Page 1.19 Cancels 44th Revised Page 1.19

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

20-196 Original 20-241 Original 20-197 Original 20-242 Original 20-286 Original 20-198 Original 20-243 Original 20-287 Original 20-199 Original 20-244 Original 20-288 Original 20-200 Original 20-245 Original 20-289 Original 20-201 1st 20-246 Original 20-290 Original 20-202 Original 20-247 Original 20-291 Original 20-203 Original 20-248 Original 20-292 Original 20-204 Original 20-249 Original 20-293 Original 20-205 Original 20-250 Original 20-294 Original 20-206 Original 20-251 Original 20-295 Original 20-207 1st 20-252 Original 20-296 Original 20-208 Original 20-253 Original 20-297 Original 20-209 Original 20-254 Original 20-298 Original 20-210 Original 20-255 Original 20-299 Original 20-211 Original 20-256 Original 20-300 Original 20-212 Original 20-257 Original 20-301 Original 20-213 1st 20-258 Original 20-302 Original 20-214 Original 20-259 Original 20-303 Original 20-215 Original 20-260 Original 20-304 Original 20-216 Original 20-261 Original 20-305 Original 20-217 Original 20-262 Original 20-306 Original 20-218 Original 20-263 Original 20-307 Original (T) 20-219 1st 20-264 Original 20-308 Original 20-220 Original 20-265 Original 20-309 Original 20-221 Original 20-266 Original 20-310 Original 20-222 Original 20-267 Original 20-311 Original 20-223 Original 20-268 Original 20-312 Original 20-224 Original 20-269 Original 20-313 Original 20-225 1st 20-270 Original 20-314 Original 20-226 Original 20-271 Original 20-315 Original 20-227 Original 20-272 Original 20-316 Original 20-228 Original 20-273 Original 20-317 Original 20-229 Original 20-274 Original 20-318 Original 20-230 Original 20-275 Original 20-319 Original 20-231 Original 20-276 Original 20-320 Original 20-232 Original 20-277 Original 20-321 Original 20-233 Original 20-278 Original 20-322 Original 20-234 Original 20-279 Original 20-323 Original 20-235 Original 20-280 Original 20-324 Original 20-236 Original 20-281 Original 20-325 Original 20-237 Original 20-282 Original 20-326 Original 20-238 Original 20-283 Original 20-327 Original 20-239 Original 20-284 Original 20-328 Original 20-240 Original 20-285 Original 20-329 Original 20-330 Original 20-331 Original (T)

(This page filed under Transmittal No. 2712 )

Issued: July 21, 1998 Effective: August 5, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 24th Revised Page 1.20 Cancels 23rd Revised Page 1.20

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

20-332 Original 20-380 Original 20-428 Original 20-333 Original 20-381 Original 20-429 Original 20-334 Original 20-382 Original 20-430 Original 20-335 Original 20-383 Original 20-431 Original 20-336 Original 20-384 Original 20-432 Original 20-337 Original 20-385 Original 20-433 Original 20-338 Original 20-386 Original 20-434 Original 20-339 Original 20-387 Original 20-435 Original 20-340 Original 20-388 Original 20-436 Original 20-341 Original 20-389 Original 20-437 Original 20-342 Original 20-390 Original 20-438 Original 20-343 Original 20-391 Original 20-439 Original 20-344 Original 20-392 Original 20-440 Original 20-345 Original 20-393 Original 20-441 Original 20-346 Original 20-394 Original 20-442 Original 20-347 Original 20-395 Original 20-443 Original 20-348 Original 20-396 Original 20-444 Original 20-349 Original 20-397 Original 20-445 Original 20-350 Original 20-398 Original 20-446 Original 20-351 Original 20-399 1st 20-447 Original 20-352 Original 20-400 Original 20-448 Original 20-353 Original 20-401 Original 20-449 Original 20-354 Original 20-402 Original 20-450 Original 20-355 Original 20-403 Original 20-451 Original* 20-356 Original 20-404 Original 20-452 Original* 20-357 Original 20-405 Original 20-453 Original* 20-358 Original 20-406 Original 20-454 Original* 20-359 Original 20-407 Original 20-455 Original* 20-360 Original 20-408 Original 20-456 Original* 20-361 Original 20-409 Original 20-457 Original* 20-362 Original 20-410 Original 20-458 Original* 20-363 Original 20-411 Original 20-459 Original* 20-364 Original 20-412 Original 20-460 Original* 20-365 Original 20-413 Original 20-461 Original* 20-366 Original 20-414 Original 20-367 Original 20-415 Original 20-462 Original* 20-368 Original 20-416 Original 20-463 Original* 20-369 Original 20-417 Original 20-464 Original* 20-370 Original 20-418 Original 20-465 Original* 20-371 Original 20-419 Original 20-466 Original* 20-372 Original 20-420 Original 20-467 Original* 20-373 Original 20-421 Original 20-468 Original* 20-374 Original 20-422 Original 20-469 Original* 20-375 Original 20-423 Original 20-470 Original* 20-376 Original 20-424 Original 20-471 Original* 20-377 Original 20-425 Original 20-472 Original* 20-378 Original 20-426 Original 20-473 Original* 20-379 Original 20-427 Original 20-474 Original* 20-475 Original*

(This page filed under Transmittal No. 2763 )

Issued: June 16, 1999 Effective: July 1, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 1.20.1 Cancels 5th Revised Page 1.20.1

ACCESS SERVICE

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 20-476 Original 20-526 1st* 20-575 1st* 20-477 Original 20-527 1st* 20-576 1st* 20-478 Original 20-528 1st* 20-577 1st* 20-479 Original 20-529 1st* 20-578 1st* 20-480 Original 20-530 1st* 20-579 1st* 20-481 Original 20-531 1st* 20-580 1st* 20-482 Original 20-532 1st* 20-581 1st* 20-483 Original 20-533 1st* 20-582 1st* 20-484 Original 20-534 1st* 20-583 1st* 20-485 Original 20-535 1st* 20-584 1st* 20-486 Original 20-536 1st* 20-585 1st* 20-487 Original 20-537 1st* 20-586 1st* 20-488 Original 20-538 1st* 20-587 1st* 20-489 Original 20-539 1st* 20-588 1st* 20-490 Original 20-540 1st* 20-589 1st* 20-491 Original 20-541 1st* 20-590 1st* 20-492 Original 20-542 1st* 20-591 1st* 20-493 Original 20-543 1st* 20-592 1st* 20-494 Original 20-544 1st* 20-593 1st* 20-495 Original 20-545 1st* 20-594 1st* 20-496 Original 20-546 1st* 20-595 1st* 20-497 Original 20-547 1st* 20-596 1st* 20-498 Original 20-548 1st* 20-597 1st* 20-499 Original 20-549 1st* 20-598 1st* 20-500 Original 20-550 1st* 20-599 1st* 20-501 Original 20-551 1st* 20-600 Original* 20-502 Original 20-552 1st* 20-601 Original* 20-503 Original 20-553 1st* 20-602 Original* 20-504 Original 20-554 1st* 20-603 Original* 20-505 Original 20-555 1st* 20-604 Original* 20-506 Original 20-556 1st* 20-605 Original* 20-507 Original 20-557 1st* 20-606 Original* 20-508 Original 20-558 1st* 20-607 Original* 20-509 Original 20-559 1st* 20-608 Original* 20-510 Original 20-560 1st* 20-609 Original* 20-511 Original 20-561 1st* 20-610 Original* 20-512 Original 20-562 1st* 20-611 Original* 20-513 Original 20-563 1st* 20-612 Original* 20-514 Original 20-564 1st* 20-613 Original* 20-515 Original 20-565 1st* 20-614 Original* 20-516 Original 20-566 1st* 20-615 Original* 20-517 Original 20-567 1st* 20-616 Original* 20-518 Original 20-568 1st* 20-617 Original* 20-519 Original 20-569 1st* 20-618 Original* 20-520 Original 20-570 1st* 20-619 Original* 20-521 Original 20-571 1st* 20-620 Original* 20-522 Original 20-572 1st* 20-621 Original* 20-523 Original 20-573 1st* 20-622 Original* 20-524 Original 20-573.1 1st* 20-623 Original* 20-525 Original 20-574 1st* 20-624 Original*

(This page filed under Transmittal No. 2827 )

Issued: May 15, 2000 Effective: May 30, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 1.20.2 Cancels 4th Revised Page 1.20.2

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 20-625 Original 20-675 Original 20-726 Original 20-626 Original 20-676 Original 20-727 Original 20-627 Original 20-677 Original 20-728 Original 20-628 Original 20-678 Original 20-729 Original 20-629 Original 20-679 Original 20-730 Original 20-630 Original 20-680 Original 20-731 Original 20-631 Original 20-681 Original 20-732 Original 20-632 Original 20-682 Original 20-733 Original 20-633 Original 20-683 Original 20-734 Original 20-634 Original 20-684 Original 20-735 Original 20-635 Original 20-685 Original 20-736 Original 20-636 Original 20-686 Original 20-737 Original 20-637 Original 20-687 Original 20-738 Original 20-638 Original 20-688 Original 20-739 Original 20-639 Original 20-689 Original 20-740 Original 20-640 Original 20-690 Original 20-741 Original 20-641 Original 20-691 Original 20-742 Original 20-642 Original 20-692 Original 20-743 Original 20-643 Original 20-693 Original 20-744 Original 20-644 Original 20-694 Original 20-745 Original 20-645 Original 20-695 Original 20-746 Original 20-646 Original 20-696 Original 20-747 Original 20-647 Original 20-697 Original 20-748 Original 20-648 Original 20-698 Original 20-749 Original 20-649 Original 20-699 Original 20-750 Original* 20-650 Original 20-700 Original 20-751 Original* 20-651 Original 20-701 Original 20-752 Original* 20-652 Original 20-702 Original 20-753 Original* 20-653 Original 20-703 Original 20-754 Original* 20-654 Original 20-704 Original 20-755 Original* 20-655 Original 20-705 Original 20-756 Original* 20-656 Original 20-706 Original 20-757 Original* 20-657 Original 20-707 Original 20-758 Original* 20-658 Original 20-708 Original 20-759 Original* 20-659 Original 20-709 Original 20-760 Original* 20-660 Original 20-710 Original 20-761 Original* 20-661 Original 20-711 Original 20-762 Original* 20-662 Original 20-712 Original 20-763 Original* 20-663 Original 20-713 Original 20-764 Original* 20-664 Original 20-714 Original 20-765 Original* 20-665 Original 20-715 Original 20-766 Original* 20-666 Original 20-716 Original 20-767 Original* 20-667 Original 20-717 Original 20-768 Original* 20-668 Original 20-718 Original 20-769 Original* 20-669 Original 20-719 Original 20-770 Original* 20-670 Original 20-720 Original 20-771 Original* 20-671 Original 20-721 Original 20-772 Original* 20-672 Original 20-722 Original 20-773 Original* 20-673 Original 20-723 Original 20-774 Original* 20-674 Original 20-724 Original 20-775 Original* 20-725 Original 20-776 Original*

(This page filed under Transmittal No. 2837 )

Issued: July 27, 2000 Effective: August 11, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 1.20.3 Cancels 5th Revised Page 1.20.3

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

20-777 Original 20-882 Original* 20-921 Original* 20-778 Original 20-883 Original* 20-922 Original* 20-779 Original 20-884 Original* 20-923 Original* 20-780 Original 20-885 Original* 20-924 Original* 20-781 Original 20-886 Original* 20-925 Original* 20-782 Original 20-887 Original* 20-926 Original* 20-783 Original 20-888 Original* 20-927 Original* 20-784 Original 20-889 Original* 20-928 Original* 20-785 Original 20-890 Original* 20-929 Original* 20-786 Original 20-891 Original* 20-930 Original* 20-787 Original 20-892 Original* 20-931 Original* 20-788 Original 20-893 Original* 20-932 Original* 20-789 Original 20-894 Original* 20-933 Original* 20-790 Original 20-895 Original* 20-934 Original* 20-791 Original 20-896 Original* 20-935 Original* 20-792 Original 20-897 Original* 20-936 Original* 20-793 Original 20-898 Original* 20-937 Original* 20-794 Original 20-899 Original* 20-938 Original* 20-795 Original 20-900 Original* 20-939 Original* 20-796 Original 20-901 Original* 20-940 Original* 20-797 Original 20-902 Original* 20-941 Original* 20-798 Original 20-903 Original* 20-942 Original* 20-799 Original 20-904 Original* 20-943 Original* 20-800 Original 20-905 Original* 20-944 Original* 20-801 Original 20-906 Original* 20-945 Original* 20-802 Original 20-907 Original* 20-946 Original* 20-803 Original 20-908 Original* 20-947 Original* 20-804 Original 20-909 Original* 20-948 Original* 20-805 Original 20-910 Original* 20-949 Original* 20-806 Original 20-911 Original* 20-950 Original* 20-807 Original 20-912 Original* 20-951 Original* 20-808 Original 20-913 Original* 20-952 Original* 20-809 Original 20-914 Original* 20-953 Original* 20-810 Original 20-915 Original* 20-954 Original* 20-811 Original 20-916 Original* 20-955 Original* 20-812 Original 20-917 Original* 20-956 Original* 20-813 Original 20-918 Original* 21-1 3rd 20-814 Original 20-919 Original* 21-2 Original 20-815 Original 20-920 Original* 21-3 1st 21-4 2nd 21-5 1st 21-6 1st 21-7 2nd 21-8 Original 21-9 1st 21-10 2nd 21-11 1st 21-12 1st *

(This page filed under Transmittal No. 2865 )

Issued: June 18, 2001 Effective: July 3, 2001

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 20th Revised Page 1.20.4 Cancels 19th Revised Page 1.20.4

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

21-13 1st 24-12 1st 25-18.3 4th 21-14 1st 24-13 1st 25-19 14th 21-15 1st 24-14 1st 25-20 12th 21-16 1st 24-15 2nd 25-20.1 10th 22-1 1st 24-16 4th 25-20.2 10th 22-2 1st 25-20.3 3rd 24-17 1st 22-3 1st 25-21 8th 22-4 1st 24-18 1st 25-21.1 9th 22-5 1st 24-19 1st 22-6 1st 24-20 3rd 22-7 1st 25-1 14th 23-1 6th 25-2 16th 23-2 11th 25-2.1 3rd 23-3 5th 25-3 19th 23-3.1 9th 25-4 6th 23-4 4th 23-5 2nd 25-5 4th 23-6 3rd 25-6 3rd 23-6.1 Original 25-7 3rd 23-7 13th 25-8 6th 23-8 10th 25-9 3rd 23-9 9th 25-10 8th 23-10 5th 25-11 5th 23-11 11th 25-11.1 5th 23-12 12th 25-12 4th 23-12.1 7th 25-13 5th 23-12.2 6th 25-14 3rd 23-12.3 7th 25-14.1 3rd 23-12.4 Original 25-14.2 4th 23-13 14th 25-14.3 2nd 23-14 10th 25-14.4 2nd 24-1 2nd 25-14.5 6th 24-2 2nd 25-14.6 3rd 24-3 4th* 25-15 5th 24-4 3rd 25-16 6th 24-5 1st 25-16.1 6th 24-6 1st 25-17 16th 24-7 5th 25-17.1 5th 25-17.2 3rd 24-8 3rd 25-18 8th 24-9 1st 25-18.1 5th 24-10 2nd 25-18.2 5th 24-11 1st

* New or Revised Page (This page filed under Transmittal No. 3433 )

Issued: August 29, 2016 Effective: September 13, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 46th Revised Page 1.21 Cancels 45th Revised Page 1.21

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 25-22 8th 25-30.20 5th 25-66 4th 25-23 10th 25-30.21 7th 25-67 4th 25-24 17th 25-31 5th 25-68 4th 25-25 6th 25-32 8th 26-1 Original 25-25.1 4th 25-32.1 5th 26-2 Original 25-26 8th 25-32.2 4th 26-3 Original 25-27 7th 25-32.3 4th 26-4 Original 25-27.1 8th 25-33 7th 26-5 Original 25-28 9th 25-34 9th 26-6 1st 25-29 10th 25-35 3rd 26-7 Original 25-29.1 8th 25-36 3rd 26-8 Original 25-29.2 6th 25-37 3rd 26-9 Original 25-30 8th 25-38 3rd 26-10 Original 25-30.1 8th 25-39 3rd 26-11 Original 25-30.2 8th 25-40 3rd 26-12 Original 25-30.2.1 8th 25-41 3rd 27-1 4th 25-30.3 10th 25-42 3rd 27-2 3rd 25-30.4 11th 25-43 3rd 27-3 4th 25-30.5 12th 25-44 3rd 27-4 3rd 25-30.5.1 6th 25-45 3rd 27-5 3rd 25-30.6 6th 25-46 3rd 27-6 3rd 25-30.7 6th 25-47 3rd 27-7 7th 25-30.8 14th 25-48 3rd 27-8 3rd 25-30.8.1 6th 25-48.1 3rd 28-1 4th 25-30.9 12th 25-49 3rd 28-2 7th 25-30.10 10th 25-50 5th 28-3 7th 25-30.10.1 10th 25-51 3rd 28-4 4th 25-30.10.2 6th 25-52 3rd 28-5 7th 25-30.11 12th 25-53 3rd 28-6 7th 25.30.11.1 6th 25-54 4th 28-7 3rd 25-30.12 12th 25-55 3rd 28-8 3rd 25-30.13 16th* 25-56 3rd 28-9 3rd 25-30.14 5th 25-57 3rd 28-10 7th 25-30.15 5th 25-58 3rd 28-11 3rd 25-30.16 9th 25-59 3rd 28-12 3rd 25-30.16.1 7th 25-60 3rd 28-13 3rd 25-30.17 9th 25-61 3rd 28-14 3rd 25-30.18 9th 25-62 3rd 28-15 5th 25-30.19 13th 25-63 4th 28-16 5th 25-30.19.1 5th 25-64 4th 28-17 3rd 25-30.19.2 5th 25-65 4th

* New or Revised Page

(This page filed under Transmittal No. 3413 )

Issued: July 30, 2015 Effective: August 14, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 55th Revised Page 1.22 Cancels 54th Revised Page 1.22

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 29-1 14th 30-13 8th 31-27 6th 29-2 12th 30-13.1 8th 31-28 8th 29-3 10th 30-13.2 3rd 31-29 9th 29-4 13th 30-13.3 3rd 31-29.1 1st 29-5 6th 30-13.4 2nd 31-29.2 2nd 29-6 6th 30-14 13th 31-29.3 2nd 29-7 4th 30-14.1 2nd 31-29.3.1 1st 29-7.1 4th 30-15 23rd 31-29.4 2nd 29-7.2 2nd 30-16 12th 31-30 10th 29-8 7th 30-17 9th 31-31 4th 29-9 6th 30-18 8th 31-32 5th 29-9.1 4th 30-19 8th 31-33 5th 29-10 9th 30-20 5th 31-34 2nd 29-11 3rd 30-21 6th 31-34.1 4th 29-12 4th 30-22 5th 31-34.2 3rd* 29-13 2nd 30-23 6th 31-34.3 3rd 29-14 2nd 30-24 7th 31-34.4 3rd 29-15 7th 30-25 6th 31-34.5 4th 29-16 3rd 30-25.1 5th 31-34.6 2nd 29-16.1 2nd 30-26 8th 31-34.7 3rd 29-17 4th 30-27 5th 31-34.8 3rd 29-18 6th 30-28 5th 31-34.9 3rd 29-19 5th 31-1 6th* 31-34.10 4th 29-20 4th 31-2 3rd 31-34.11 5th 29-21 4th 31-3 4th 31-34.12 6th 29-22 6th 31-4 2nd 31-34.13 7th 29-23 4th 31-5 3rd 31-34.14 6th 29-23.1 4th 31-6 2nd 31-34.15 8th 29-23.2 5th 31-7 3rd 31-34.16 3rd 29-23.2.1 2nd 31-8 6th 31-34.17 3rd 29-23.3 6th 31-9 3rd 31-34.18 3rd 29-24 9th 31-10 6th 31-34.19 Original 29-24.1 2nd 31-10.1 Original 31-34.20 1st 29-25 13th 31-11 3rd 31-34.21 2nd 29-25.1 12th 31-11.1 Original 31-34.22 Original 29-25.2 2nd 31-12 5th 31-34.23 2nd 29-26 8th 31-13 3rd 31-34.24 1st 29-27 7th 31-14 9th 31-34.25 1st 29-28 3rd 31-15 5th 31-34.26 1st 30-1 11th 31-16 5th 31-34.27 1st 30-2 14th 31-16.1 Original 31-34.28 2nd 30-3 6th 31-17 6th 31-35 2nd 30-4 7th 31-18 3rd 31-36 2nd 30-5 10th 31-18.1 Original 31-37 3rd 30-5.1 2nd 31-19 9th 31-38 2nd 30-5.2 2nd 31-20 3rd 31-39 2nd 30-5.3 2nd 31-20.1 1st 31-40 2nd 30-5.4 2nd 31-20.2 6th 31-41 2nd 30-6 18th 31-21 10th 31-42 2nd 30-6.1 2nd 31-22 2nd 31-43 2nd 30-7 15th 31-23 7th 31-44 2nd 30-8 12th 31-23.1 Original 31-45 2nd 30-9 6th 31-24 8th 31-46 2nd 30-10 6th 31-25 8th 31-47 2nd 30-11 11th 31-25.1 5th 31-48 Original 30-12 7th 31-26 2nd 31-49 Original

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 63rd Revised Page 1.23 Cancels 62nd Revised Page 1.23

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 31-50 Original 31-95 1st 33-14 2nd 31-51 Original 31-96 Original 33-15 2nd 31-52 Original 31-97 Original 33-16 2nd 31-53 Original 31-98 Original 33-17 2nd 31-54 Original 31-99 2nd 33-18 2nd 31-55 Original 31-100 2nd 33-19 2nd 31-56 Original 31-101 2nd 33-20 2nd 31-57 Original 31-102 2nd 33-21 2nd 31-58 Original 31-103 Original 33-22 2nd 31-59 Original 31-104 Original 33-23 3rd 31-60 Original 31-105 Original 33-24 3rd 31-61 Original 31-106 Original 33-25 3rd 31-62 Original 31-107 1st 33-26 3rd 31-63 Original 31-108 2nd 33-27 2nd 31-64 Original 31-109 2nd 34-1 15th 31-65 1st 31-110 Original 34-2 12th 31-66 1st 31-111 2nd 34-3 18th 31-67 1st 31-112 1st 34-4 11th 31-68 1st 31-113 2nd 34-5 18th 31-69 1st 31-114 2nd 34-6 11th 31-70 1st 31-115 2nd 34-7 8th 31-71 1st 31-116 2nd* 34-8 8th 31-72 1st 31-117 2nd* 34-9 9th 31-73 2nd 31-118 2nd* 34-9.1 Original 31-74 1st 31-119 2nd* 34-10 9th 31-75 1st 32-1 Original 34-11 17th 31-76 1st 32-2 Original 34-12 17th 31-77 1st 32-3 Original 34-13 19th 31-78 2nd 32-4 Original 34-14 27th 31-79 Original 32-5 Original 35-1 5th* 31-80 Original 32-6 Original 35-2 2nd 31-81 Original 33-1 5th 35-3 2nd 31-82 Original 33-2 5th 35-4 2nd 31-83 Original 33-3 5th 35-5 3rd 31-84 Original 33-4 5th 35-6 3rd 31-85 Original 33-5 5th 35-7 3rd 31-86 Original 33-6 3rd 35-8 3rd 31-87 Original 33-7 2nd 35-9 3rd 31-88 Original 33-8 2nd 35-10 2nd 31-89 Original 33-9 2nd 35-11 2nd 31-90 Original 33-10 2nd 35-12 2nd 31-91 Original 33-11 2nd 35-13 2nd 31-92 Original 33-12 2nd 35-14 3rd 31-93 Original 33-13 2nd 35-15 2nd 31-94 Original

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 1.23.1 Cancels 12th Revised Page 1.23.1

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

35-16 2nd 36-7 2nd 35-17 2nd 37-1 5th* 35-18 2nd 37-1.1 9th* 35-18.1 2nd 37-2 7th* 35-19 2nd 37-3 4th* 35-20 2nd 37-4 1st 35-21 2nd 37-5 1st 35-22 2nd 37-6 1st 35-23 2nd 37-7 1st 35-24 2nd 37-8 1st 35-25 2nd 37-9 1st 35-26 2nd 37-10 1st 35-27 2nd 37-11 1st 35-28 2nd 35-29 2nd 35-30 2nd 35-30.1 4th 35-31 7th 35-32 6th 35-33 2nd 35-34 2nd 35-35 3rd 35-36 4th 35-36.1 5th 35-37 6th 35-38 4th 35-39 2nd 35-40 3rd 35-41 2nd 35-42 3rd 35-42.1 4th 36-1 Original 36-2 2nd 36-3 Original 36-4 2nd 36-5 Original 36-6 Original

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 61st Revised Page 1.24 Cancels 60th Revised Page 1.24

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 38-1 5th 39-8.1.1 Original 39-31 1st 38-2 8th 39-8.2 Original 39-32 1st 38-2.1 Original 39-8.3 1st 39-33 1st 38-3 3rd 39-8.4 1st 39-34 1st 38-4 9th 39-8.5 1st 39-35 Original 38-5 3rd 39-8.6 2nd 39-36 5th 38-6 3rd 39-8.7 1st 39-37 5th 38-7 6th 39-8.8 1st 39-38 3rd 38-8 3rd 39-8.9 1st 39-39 2nd 38-9 3rd 39-8.10 1st 39-40 4th 38-10 1st 39-8.11 1st 39-41 4th 38-11 5th 39-8.12 1st 39-42 4th 38-12 4th 39-8.13 1st 39-43 4th 38-13 4th 39-8.14 1st 39-44 4th 38-13.1 2nd 39-8.15 1st 39-45 4th 38-14 4th 39-8.16 1st 39-46 4th 38-14.1 1st 39-8.17 1st 39-47 2nd 38-15 4th 39-8.18 1st 39-48 4th 38-15.1 1st 39-8.19 1st 39-49 1st 38-16 4th 39-8.20 1st 39-50 Original 38-17 3rd 39-8.21 1st 39-51 1st 38-18 4th 39-8.22 1st 39-52 1st 38-19 3rd 39-8.23 1st 39-53 1st 38-20 3rd 39-8.24 1st 39-54 1st 38-21 2nd 39-8.25 3rd 39-55 1st 38-21.1 2nd 39-9 5th 39-55.1 2nd 38-22 5th 39-10 2nd 39-56 7th* 38-22.1 2nd 39-11 5th 39-57 3rd* 38-22.2 1st 39-12 2nd 39-58 2nd 38-22.3 1st 39-13 5th 39-59 8th* 38-22.3.1 Original 39-14 5th 39-60 4th 38-22.4 1st 39-15 2nd 39-61 6th* 38-22.5 2nd 39-16 5th 39-62 6th 38-22.6 1st 39-17 2nd 39-63 8th* 38-22.7 Original 39-18 2nd 39-64 4th 38-23 2nd 39-19 2nd 39-65 4th 38-24 Original 39-20 2nd 39-66 6th 38-25 Original 39-21 2nd 39-67 7th 39-1 Original 39-22 2nd 39-68 Original 39-2 2nd 39-23 2nd 39-69 Original 39-3 5th 39-24 3rd 39-70 Original 39-4 10th 39-25 4th 39-71 1st 39-5 2nd 39-26 Original 39-72 Original 39-6 Original 39-27 Original 39-73 Original 39-7 1st 39-28 3rd 39-74 Original 39-8 1st 39-29 1st 39-75 Original 39-8.1 12th 39-30 1st 39-76 Original * New or Revised Page

(This page filed under Transmittal No. 3436 )

Issued: October 12, 2016 Effective: October 27, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 1.24.1 Cancels 5th Revised Page 1.24.1

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

39-77 Original 39-78 Original 39-79 Original 39-80 Original 39-81 Original 39-82 Original 39-83 3rd 39-84 6th* 39-85 6th* 39-86 3rd* 39-87 Original 39-88 6th* 39-89 Original 39-90 3rd 39-91 3rd

*New or Revised Page.

(This page filed under Transmittal No. 3358 )

Issued: October 26, 2012 Effective: November 10, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 29th Revised Page 1.25 Cancels 28th Revised Page 1.25

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 39-92 3rd 39-131 3rd 39-182 3rd 39-93 3rd 39-132 3rd 39-183 Original 39-94 1st 39-133 4th 39-184 Original 39-95 1st 39-134 4th 39-185 Original 39-96 Original 39-135 4th 39-186 Original 39-97 Original 39-136 4th 39-187 Original 39-98 Original 39-137 3rd 39-188 4th 39-99 Original 39-138 4th 39-189 4th 39-100 Original 39-139 3rd 39-190 4th 39-101 Original 39-140 4th 39-191 3rd 39-102 1st 39-141 4th 39-192 3rd 39-102.1 Original 39-142 4th 39-193 3rd 39-103 3rd 39-143 2nd 39-194 3rd 39-104 3rd 39-143.1 1st 39-195 3rd 39-105 3rd 39-143.2 1st 39-196 3rd 39-106 Original 39-144 4th 39-197 1st 39-107 Original 39-145 4th 39-198 1st 39-108 Original 39-146 4th 39-199 1st 39-109 Original 39-147 4th 39-200 Original 39-110 6th 39-148 Original 39-201 Original 39-111 6th 39-149 Original 39-202 1st 39-112 7th 39-150 4th 39-202.1 4th* 39-113 6th 39-151 4th 39-202.2 3rd 39-114 Original 39-152 4th 39-202.3 3rd 39-115 Original 39-153 4th 39-202.4 3rd 39-116 Original 39-154 4th 39-202.5 3rd 39-117 Original 39-155 4th 39-202.6 3rd 39-118 Original 39-156 4th 39-202.7 2nd 39-119 Original 39-157 1st 39-202.8 3rd 39-120 3rd 39-158 1st 39-202.9 2nd 39-121 3rd 39-159 3rd 39-202.10 2nd 39-122 3rd 39-160 3rd 39-202.11 2nd 39-123 3rd 39-161 3rd 39-202.12 2nd 39-124 3rd 39-162 3rd 39-202.13 3rd 39-124.1 6th 39-163 Original 39-202.14 2nd 39-124.2 4th 39-164 Original 39-202.15 3rd 39-124.3 2nd 39-165 5th 39-203 7th 39-124.4 2nd 39-166 5th 39-204 5th 39-124.5 1st 39-167 5th 39-205 5th 39-124.6 1st 39-168 Original 39-206 6th 39-124.7 1st 39-169 Original 39-207 3rd 39-124.8 1st 39-170 Original 39-208 2nd 39-124.9 1st 39-171 3rd 39-209 3rd 39-124.10 1st 39-172 3rd 39-210 3rd 39-124.11 1st 39-173 3rd 39-211 3rd 39-124.12 1st 39-174 3rd 39-212 4th 39-124.13 3rd 39-175 3rd 39-213 4th 39-125 2nd 39-176 3rd 39-214 4th 39-126 Original 39-177 3rd 39-215 4th 39-127 Original 39-178 3rd 39-216 7th 39-128 1st 39-179 3rd 39-217 5th 39-129 5th 39-180 3rd 39-218 5th 39-130 3rd 39-181 3rd 39-219 5th

(This page filed under Transmittal No. 3397 )

Issued: October 10, 2014 Effective: October 25, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 71st Revised Page 1.26 Cancels 70th Revised Page 1.26

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 39-219.1 2nd 39-229.23.2 3rd 39-239.1 Original 39-219.2 3rd 39-229.24 2nd 39-239.2 Original 39-219.3 2nd 39-229.25 5th 39-240 3rd 39-219.4 2nd 39-229.26 3rd 39-241 5th 39-219.5 Original 39-229.27 4th 39-241.1 2nd 39-219.6 Original 39-229.28 4th 39-241.2 Original 39-219.7 Original 39-229.29 3rd 39-242 6th 39-219.8 Original 39-229.30 4th 39-242.1 1st 39-219.9 Original 39-229.31 4th 39-243 2nd* 39-219.10 1st 39-229.32 4th 39-243.1 Original* 39-220 3rd 39-229.33 4th 39-244 Original 39-221 2nd 39-229.34 4th 40-1 3rd 39-222 2nd 39-229.35 2nd 40-2 7th 39-223 2nd 39-229.36 2nd 40-3 4th 39-224 3rd 39-229.37 2nd 40-3.1 2nd 39-225 3rd 39-229.38 2nd 40-4 3rd 39-226 2nd 39-229.39 2nd 40-5 3rd 39-227 2nd 39-230 Original 40-6 4th 39-228 2nd 39-230.1 Original 40-7 4th 39-229 2nd 39-230.2 Original 40-8 3rd 39-229.1 7th 39-230.3 Original 40-9 3rd 39-229.1.1 4th 39-230.4 Original 40-10 2nd 39-229.2 13th 39-230.5 Original 40-11 3rd 39-229.3 9th 39-230.6 1st 40-12 5th 39-229.4 14th 39-230.7 4th 40-13 2nd 39-229.5 7th 39-230.8 1st 40-13.1 3rd 39-229.6 3rd 39-230.9 1st 40-14 3rd 39-229.7 8th 39-230.10 1st 40-14.1 2nd 39-229.7.1 6th 39-230.11 1st 40-15 3rd 39-229.7.2 2nd 39-230.12 1st 40-16 8th 39-229.8 13th 39-230.13 1st 40-17 3rd 39-229.9 3rd 39-230.14 1st 40-18 4th 39-229.9.1 4th 39-230.15 1st 40-18.1 2nd 39-229.10 5th 39-230.16 1st 40-19 3rd 39-229.11 4th 39-230.17 1st 40-20 2nd 39-229.12 6th 39-230.18 1st 40-21 4th 39-229.13 5th 39-230.19 1st 40-22 5th 39-229.14 4th 39-230.20 1st 40-23 8th 39-229.15 6th 39-230.21 1st 40-24 5th 39-229.16 5th 39-231 2nd 40-25 4th 39-229.17 4th 39-232 2nd 40-26 8th 39-229.18 6th 39-233 Original 40-27 4th 39-229.19 5th 39-234 Original 40-28 4th 39-229.20 5th 39-235 Original 40-29 5th 39-229.21 6th 39-236 3rd* 40-30 4th 39-229.22 5th 39-237 4th* 40-31 4th 39-229.23 6th 39-238 4th 40-32 5th 39-229.23.1 5th 39-239 4th 40-33 5th 40-34 5th 40-35 4th

(This page filed under Transmittal No. 3362 )

Issued: November 30, 2012 Effective: December 1, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 1.27 Cancels 9th Revised Page 1.27

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-1 2nd* 41-40 Original 41-79 Original 41-2 2nd* 41-41 Original 41-80 Original 41-3 2nd* 41-42 Original 41-81 Original 41-4 2nd* 41-43 Original 41-82 Original 41-5 2nd* 41-44 Original 41-83 Original 41-6 2nd* 41-45 Original 41-84 Original 41-7 2nd* 41-46 Original 41-85 Original 41-8 2nd* 41-47 Original 41-86 Original 41-9 2nd* 41-48 Original 41-87 Original 41-10 2nd* 41-49 Original 41-88 2nd* 41-11 Original 41-50 Original 41-89 2nd* 41-12 Original 41-51 Original 41-90 2nd* 41-13 Original 41-52 Original 41-91 2nd* 41-14 Original 41-53 Original 41-92 2nd* 41-15 2nd* 41-54 Original 41-93 2nd* 41-16 2nd* 41-55 Original 41-94 2nd* 41-17 2nd* 41-56 Original 41-95 2nd* 41-18 2nd* 41-57 Original 41-96 2nd* 41-19 2nd* 41-58 Original 41-97 2nd* 41-20 Original 41-59 Original 41-98 Original 41-21 Original 41-60 Original 41-99 Original 41-22 Original 41-61 Original 41-100 Original 41-23 Original 41-62 2nd* 41-101 Original 41-24 Original 41-63 2nd* 41-102 Original 41-25 Original 41-64 2nd* 41-103 Original 41-26 Original 41-65 2nd* 41-104 Original 41-27 Original 41-66 2nd* 41-105 Original 41-28 Original 41-67 Original 41-106 Original 41-29 Original 41-68 Original 41-107 Original 41-30 Original 41-69 Original 41-108 Original 41-31 Original 41-70 Original 41-109 Original 41-32 Original 41-71 Original 41-110 Original 41-33 Original 41-72 Original 41-111 Original 41-34 Original 41-73 Original 41-112 Original 41-35 Original 41-74 Original 41-113 Original 41-36 Original 41-75 Original 41-114 Original 41-37 Original 41-76 Original 41-115 Original 41-38 Original 41-77 Original 41-116 Original 41-39 Original 41-78 Original 41-117 Original *New or Revised Page. 41-118 Original

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 1.28 Cancels 11th Revised Page 1.28

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-119 2nd 41-157 Original 41-194 Original 41-120 2nd 41-158 Original 41-195 Original 41-121 2nd 41-159 Original 41-196 Original 41-122 2nd 41-160 Original 41-197 Original 41-123 2nd 41-161 Original 41-198 Original 41-124 2nd 41-162 Original 41-199 Original 41-125 2nd 41-163 Original 41-200 Original 41-126 2nd 41-164 Original 41-201 Original 41-127 2nd 41-165 Original 41-202 Original 41-128 2nd 41-166 Original 41-203 2nd 41-129 3rd* 41-167 Original 41-204 2nd 41-130 2nd 41-168 Original 41-205 2nd 41-131 2nd 41-169 Original 41-206 2nd 41-132 2nd 41-170 Original 41-207 2nd 41-133 2nd 41-171 Original 41-208 2nd 41-134 2nd 41-172 Original 41-209 Original 41-135 2nd 41-173 Original 41-210 Original 41-136 2nd 41-174 Original 41-211 Original 41-137 2nd 41-175 2nd 41-212 Original 41-138 2nd 41-176 2nd 41-213 Original 41-139 2nd 41-177 2nd 41-214 Original 41-140 2nd 41-178 2nd 41-215 Original 41-141 Original 41-179 2nd 41-216 Original 41-142 Original 41-180 2nd 41-217 Original 41-143 Original 41-181 2nd 41-218 Original 41-144 Original 41-182 Original 41-219 Original 41-145 Original 41-183 Original 41-220 Original 41-146 Original 41-183 Original 41-221 Original 41-147 Original 41-184 Original 41-222 Original 41-148 Original 41-185 Original 41-223 Original 41-149 Original 41-186 Original 41-224 Original 41-150 Original 41-187 Original 41-225 Original 41-151 Original 41-188 Original 41-226 Original 41-152 Original 41-189 Original 41-227 Original 41-153 Original 41-190 Original 41-228 Original 41-154 Original 41-191 Original 41-229 Original 41-155 Original 41-192 Original 41-230 Original 41-156 Original 41-193 Original 41-231 2nd 41-232 Original

*New or Revised Page.

(This page filed under Transmittal No. 3252 )

Issued: February 5, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 25th Revised Page 1.29 Cancels 24th Revised Page 1.29

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-233 2nd 41-273 2nd 41-314 2nd 41-234 3rd* 41-274 2nd 41-315 Original 41-235 Original 41-275 2nd 41-316 Original 41-236 Original 41-276 2nd 41-317 Original 41-237 Original 41-277 2nd 41-318 Original 41-238 Original 41-278 2nd 41-319 Original 41-239 Original 41-279 2nd 41-320 Original 41-240 Original 41-280 2nd 41-321 Original 41-241 Original 41-281 2nd 41-322 Original 41-242 Original 41-282 2nd 41-323 Original 41-243 Original 41-283 2nd 41-324 Original 41-244 Original 41-284 2nd 41-325 Original 41-245 2nd 41-285 2nd 41-326 2nd 41-246 2nd 41-286 2nd 41-327 2nd 41-247 Original 41-287 2nd 41-328 2nd 41-248 Original 41-288 2nd 41-329 Original 41-249 Original 41-289 2nd 41-330 Original 41-250 Original 41-290 2nd 41-331 Original 41-251 Original 41-291 2nd 41-332 2nd 41-252 Original 41-292 2nd 41-333 Original 41-253 Original 41-293 2nd 41-334 2nd 41-254 Original 41-294 Original 41-335 2nd 41-255 Original 41-295 Original 41-336 2nd 41-256 Original 41-296 Original 41-337 Original 41-257 Original 41-297 Original 41-338 Original 41-258 Original 41-298 Original 41-339 Original 41-259 Original 41-299 Original 41-340 2nd 41-260 Original 41-300 Original 41-341 Original 41-261 Original 41-301 Original 41-342 Original 41-262 Original 41-302 Original 41-343 Original 41-263 3rd 41-303 Original 41-344 Original 41-264 3rd 41-304 Original 41-345 Original 41-265 3rd 41-305 Original 41-346 Original 41-266 3rd 41-306 2nd 41-347 Original 41-267 3rd 41-307 2nd 41-348 Original 41-268 3rd 41-308 2nd 41-349 Original 41-269 2nd 41-309 2nd 41-350 Original 41-270 2nd 41-310 2nd 41-351 Original 41-271 2nd 41-311 2nd 41-352 Original 41-272 2nd 41-312 2nd 41-353 Original 41-313 2nd

(This page filed under Transmittal No. 3252 )

Issued: February 5, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 21st Revised Page 1.30 Cancels 20th Revised Page 1.30

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-354 Original 41-394 2nd 41-434 Original 41-355 Original 41-395 2nd 41-435 Original 41-356 Original 41-396 Original 41-436 Original 41-357 Original 41-397 3rd 41-437 Original 41-358 Original 41-398 Original 41-438 Original 41-359 Original 41-399 Original 41-439 Original 41-360 Original 41-400 Original 41-440 Original 41-361 Original 41-401 3rd* 41-441 Original 41-362 Original 41-402 Original 41-442 Original 41-363 2nd 41-403 Original 41-443 Original 41-364 2nd 41-404 Original 41-444 Original 41-365 2nd 41-405 2nd 41-445 Original 41-366 2nd 41-406 2nd 41-446 Original 41-367 2nd 41-407 2nd 41-447 Original 41-368 2nd 41-408 Original 41-448 Original 41-369 2nd 41-409 2nd 41-449 Original 41-370 Original 41-410 2nd 41-450 2nd 41-371 2nd 41-411 Original 41-451 2nd 41-372 2nd 41-412 Original 41-452 2nd 41-373 Original 41-413 Original 41-453 2nd 41-374 Original 41-414 Original 41-454 2nd 41-375 Original 41-415 Original 41-455 2nd 41-376 Original 41-416 Original 41-456 2nd 41-377 Original 41-417 Original 41-457 2nd 41-378 2nd 41-418 Original 41-458 2nd 41-379 Original 41-419 2nd 41-459 2nd 41-380 Original 41-420 Original 41-460 4th 41-381 Original 41-421 Original 41-461 5th 41-382 Original 41-422 Original 41-462 2nd 41-383 Original 41-423 Original 41-463 4th 41-384 Original 41-424 Original 41-464 2nd 41-385 Original 41-425 Original 41-465 2nd 41-386 Original 41-426 Original 41-466 2nd 41-387 Original 41-427 Original 41-467 2nd 41-388 2nd 41-428 Original 41-468 2nd 41-389 Original 41-429 Original 41-469 2nd 41-390 Original 41-430 Original 41-470 2nd 41-391 Original 41-431 Original 41-471 2nd 41-392 3rd* 41-432 Original 41-472 2nd 41-393 Original 41-433 Original 41-473 2nd

(This page filed under Transmittal No. 3284 )

Effective: September 2, 2009

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 25th Revised Page 1.31 Cancels 24th Revised Page 1.31

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-474 2nd 41-515 Original 41-556 2nd 41-475 2nd 41-516 Original 41-557 2nd 41-476 2nd 41-517 Original 41-558 2nd 41-477 2nd 41-518 2nd 41-559 2nd 41-478 2nd 41-519 2nd 41-560 2nd 41-479 2nd 41-520 2nd 41-561 3rd* 41-480 2nd 41-521 Original 41-562 2nd 41-481 2nd 41-522 2nd 41-563 2nd 41-482 Original 41-523 2nd 41-564 2nd 41-483 Original 41-524 2nd 41-565 2nd 41-484 Original 41-525 2nd 41-566 4th 41-485 Original 41-526 2nd 41-567 5th 41-486 Original 41-527 2nd 41-568 2nd 41-487 Original 41-528 2nd 41-569 5th* 41-488 Original 41-529 2nd 41-570 2nd 41-489 Original 41-530 2nd 41-571 2nd 41-490 Original 41-531 2nd 41-572 2nd 41-491 Original 41-532 Original 41-573 2nd 41-492 Original 41-533 Original 41-574 2nd 41-493 3rd* 41-534 Original 41-575 2nd 41-494 Original 41-535 Original 41-576 2nd 41-495 Original 41-536 Original 41-577 2nd 41-496 2nd 41-537 Original 41-578 4th 41-497 Original 41-538 Original 41-579 4th 41-498 Original 41-539 Original 41-580 2nd 41-499 Original 41-540 Original 41-581 2nd 41-500 1st* 41-541 Original 41-582 2nd 41-501 Original 41-542 Original 41-583 2nd 41-502 Original 41-543 Original 41-584 2nd 41-503 Original 41-544 Original 41-585 2nd 41-504 2nd 41-545 Original 41-586 2nd 41-505 Original 41-546 2nd 41-587 2nd 41-506 2nd 41-547 2nd 41-588 2nd 41-507 Original 41-548 2nd 41-589 2nd 41-508 Original 41-549 2nd 41-590 4th 41-509 Original 41-550 2nd 41-591 2nd 41-510 Original 41-551 2nd 41-592 2nd 41-511 Original 41-552 2nd 41-593 2nd 41-512 2nd 41-553 2nd 41-594 2nd 41-513 2nd 41-554 2nd 41-595 2nd 41-514 2nd 41-555 2nd 41-596 2nd

(This page filed under Transmittal No. 3284 )

Effective: September 2, 2009

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 19th Revised Page 1.32 Cancels 18th Revised Page 1.32

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-597 2nd 41-641 2nd 41-685 Original 41-598 2nd 41-642 2nd 41-686 Original 41-599 2nd 41-643 2nd 41-687 Original 41-600 2nd 41-644 2nd 41-688 Original 41-601 2nd 41-645 2nd 41-689 Original 41-602 2nd 41-646 2nd 41-690 2nd 41-603 2nd 41-647 2nd 41-691 2nd 41-604 2nd 41-648 2nd 41-692 Original 41-605 2nd 41-649 2nd 41-693 Original 41-606 2nd 41-650 2nd 41-694 Original 41-607 2nd 41-651 2nd 41-695 Original 41-608 2nd 41-652 2nd 41-696 Original 41-609 2nd 41-653 2nd 41-697 Original 41-610 2nd 41-654 2nd 41-698 Original 41-611 2nd 41-655 2nd 41-699 Original 41-612 2nd 41-656 2nd 41-700 2nd 41-613 2nd 41-657 Original 41-701 2nd 41-614 2nd 41-658 Original 41-702 2nd 41-615 2nd 41-659 Original 41-703 2nd 41-616 2nd 41-660 Original 41-704 2nd 41-617 2nd 41-661 Original 41-705 2nd 41-618 2nd 41-662 Original 41-706 2nd 41-619 2nd 41-663 Original 41-707 2nd 41-620 Original 41-664 2nd 41-708 3rd* 41-621 Original 41-665 2nd 41-709 3rd* 41-622 Original 41-666 2nd 41-710 2nd 41-623 Original 41-667 Original 41-711 2nd 41-624 Original 41-668 Original 41-712 2nd 41-625 Original 41-669 2nd 41-713 2nd 41-626 Original 41-670 2nd 41-714 2nd 41-627 Original 41-671 2nd 41-715 2nd 41-628 Original 41-672 2nd 41-716 2nd 41-629 Original 41-673 2nd 41-717 2nd 41-630 Original 41-674 2nd 41-718 3rd 41-631 Original 41-675 2nd 41-719 2nd 41-632 Original 41-676 2nd 41-720 2nd 41-633 Original 41-677 2nd 41-721 2nd 41-634 Original 41-678 2nd 41-722 2nd 41-635 Original 41-679 2nd 41-723 2nd 41-636 Original 41-680 2nd 41-724 2nd 41-637 Original 41-681 2nd 41-725 2nd 41-638 Original 41-682 2nd 41-726 2nd 41-639 Original 41-683 Original 41-640 Original 41-684 Original

(This page filed under Transmittal No. 3284 )

Effective: September 2, 2009

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 21st Revised Page 1.33 Cancels 20th Revised Page 1.33

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 41-727 2nd* 41-773 Original 41-819 2nd* 41-728 2nd* 41-774 Original 41-820 2nd* 41-729 2nd* 41-775 2nd* 41-821 2nd* 41-730 2nd* 41-776 Original 41-822 2nd* 41-731 2nd* 41-777 Original 41-823 2nd* 41-732 2nd* 41-778 Original 41-824 2nd* 41-733 2nd* 41-779 Original 41-825 2nd* 41-734 2nd* 41-780 Original 41-826 2nd* 41-735 2nd* 41-781 Original 41-827 2nd* 41-736 2nd* 41-782 Original 41-828 2nd* 41-737 2nd* 41-783 Original 41-829 2nd* 41-738 2nd* 41-784 Original 41-830 Original 41-739 2nd* 41-785 Original 41-831 Original 41-740 2nd* 41-786 Original 41-832 Original 41-741 2nd* 41-787 Original 41-833 Original 41-742 2nd* 41-788 Original 41-834 Original 41-743 Original 41-789 Original 41-835 Original 41-744 Original 41-790 Original 41-836 Original 41-745 Original 41-791 Original 41-837 Original 41-746 Original 41-792 Original 41-838 Original 41-747 Original 41-793 Original 41-839 Original 41-748 Original 41-794 Original 41-840 Original 41-749 Original 41-795 Original 41-841 Original 41-750 Original 41-796 Original 41-842 Original 41-751 Original 41-797 2nd* 41-843 Original 41-752 Original 41-798 2nd* 41-844 Original 41-753 Original 41-799 2nd* 41-845 Original 41-754 Original 41-800 2nd* 41-846 Original 41-755 Original 41-801 2nd* 41-847 Original 41-756 Original 41-802 2nd* 41-848 Original 41-757 Original 41-803 2nd* 41-849 Original 41-758 Original 41-804 2nd* 41-850 Original 41-759 Original 41-805 Original 41-851 Original 41-760 Original 41-806 Original 41-852 Original 41-761 Original 41-807 Original 41-853 Original 41-762 Original 41-808 Original 41-854 Original 41-763 Original 41-809 Original 41-855 Original 41-764 Original 41-810 Original 41-856 Original 41-765 Original 41-811 Original 41-857 Original 41-766 Original 41-812 Original 41-858 Original 41-767 Original 41-813 Original 41-859 Original 41-768 Original 41-814 Original 41-860 Original 41-769 Original 41-815 Original 41-861 Original 41-770 Original 41-816 Original 41-862 2nd* 41-771 Original 41-817 2nd* 41-863 2nd* 41-772 Original 41-818 2nd* 41-864 2nd*

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 25th Revised Page 1.34 Cancels 24th Revised Page 1.34

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 41-865 2nd 41-911 Original 41-957 2nd 41-866 2nd 41-912 Original 41-958 2nd 41-867 2nd 41-913 Original 41-959 Original 41-868 2nd 41-914 Original 41-960 2nd 41-869 2nd 41-915 Original 41-961 2nd 41-870 2nd 41-916 2nd 41-962 Original 41-871 2nd 41-917 2nd 41-963 Original 41-872 2nd 41-918 2nd 41-964 Original 41-873 Original 41-919 2nd 41-965 3rd 41-874 2nd 41-920 2nd 41-966 Original 41-875 Original 41-921 2nd 41-967 Original 41-876 Original 41-922 2nd 41-968 Original 41-877 Original 41-923 2nd 41-969 Original 41-878 Original 41-924 2nd 41-970 Original 41-879 Original 41-925 2nd 41-971 Original 41-880 Original 41-926 2nd 41-972 Original 41-881 Original 41-927 Original 41-973 Original 41-882 Original 41-928 Original 41-974 Original 41-883 Original 41-929 Original 41-975 Original 41-884 Original 41-930 Original 41-976 Original 41-885 Original 41-931 Original 41-977 Original 41-886 Original 41-932 2nd 41-978 Original 41-887 Original 41-933 2nd 41-979 Original 41-888 Original 41-934 2nd 41-980 2nd 41-889 Original 41-935 2nd 41-981 Original 41-890 Original 41-936 2nd 41-982 Original 41-891 Original 41-937 2nd 41-983 Original 41-892 Original 41-938 2nd 41-984 Original 41-893 Original 41-939 2nd 41-985 Original 41-894 Original 41-940 2nd 41-986 Original 41-895 Original 41-941 2nd 41-987 Original 41-896 Original 41-942 2nd 41-988 Original 41-897 2nd 41-943 2nd 41-989 Original 41-898 Original 41-944 2nd 41-990 Original 41-899 2nd 41-945 2nd 41-991 Original 41-900 2nd 41-946 2nd 41-992 Original 41-901 Original 41-947 2nd 41-993 Original 41-902 Original 41-948 2nd 41-994 Original 41-903 Original 41-949 2nd 41-995 Original 41-904 1st* 41-950 2nd 41-996 Original 41-905 Original 41-951 2nd 41-997 Original 41-906 Original 41-952 2nd 41-998 Original 41-907 Original 41-953 2nd 41-999 Original 41-908 Original 41-954 2nd 41-1000 Original 41-909 Original 41-955 2nd 41-1001 Original 41-910 Original 41-956 2nd 41-1002 Original

(This page filed under Transmittal No. 3254 )

Issued: March 12, 2008 Effective: March 27, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 34th Revised Page 1.35 Cancels 33rd Revised Page 1.35

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 41-1003 Original 41-1051 2nd* 41-1099 2nd* 41-1004 Original 41-1052 2nd* 41-1100 2nd* 41-1005 2nd* 41-1053 2nd* 41-1101 2nd* 41-1006 2nd* 41-1054 2nd* 41-1102 2nd* 41-1007 Original 41-1055 2nd* 41-1103 2nd* 41-1008 Original 41-1056 2nd* 41-1104 2nd* 41-1009 Original 41-1057 2nd* 41-1105 2nd* 41-1010 Original 41-1058 2nd* 41-1106 2nd* 41-1011 Original 41-1059 2nd* 41-1107 2nd* 41-1012 Original 41-1060 2nd* 41-1108 2nd* 41-1013 2nd* 41-1061 2nd* 41-1109 2nd* 41-1014 2nd* 41-1062 2nd* 41-1110 2nd* 41-1015 Original 41-1063 2nd* 41-1111 2nd* 41-1016 2nd* 41-1064 Original 41-1112 2nd* 41-1017 2nd* 41-1065 Original 41-1113 2nd* 41-1018 Original 41-1066 Original 41-1114 Original 41-1019 Original 41-1067 Original 41-1115 Original 41-1020 Original 41-1068 Original 41-1116 Original 41-1021 Original 41-1069 Original 41-1117 2nd* 41-1022 2nd* 41-1070 Original 41-1118 2nd* 41-1023 2nd* 41-1071 2nd* 41-1119 2nd* 41-1024 2nd* 41-1072 2nd* 41-1120 2nd* 41-1025 2nd* 41-1073 2nd* 41-1121 2nd* 41-1026 2nd* 41-1074 2nd* 41-1122 2nd* 41-1027 2nd* 41-1075 2nd* 41-1123 2nd* 41-1028 2nd* 41-1076 2nd* 41-1124 2nd* 41-1029 2nd* 41-1077 2nd* 41-1125 2nd* 41-1030 2nd* 41-1078 2nd* 41-1126 2nd* 41-1031 2nd* 41-1079 2nd* 41-1127 2nd* 41-1032 2nd* 41-1080 2nd* 41-1128 2nd* 41-1033 2nd* 41-1081 2nd* 41-1129 2nd* 41-1034 2nd* 41-1082 2nd* 41-1130 2nd* 41-1035 2nd* 41-1083 2nd* 41-1131 2nd* 41-1036 2nd* 41-1084 2nd* 41-1132 2nd* 41-1037 2nd* 41-1085 2nd* 41-1133 2nd* 41-1038 2nd* 41-1086 Original 41-1134 2nd* 41-1039 2nd* 41-1087 Original 41-1135 2nd* 41-1040 2nd* 41-1088 Original 41-1136 2nd* 41-1041 2nd* 41-1089 2nd* 41-1137 2nd* 41-1042 2nd* 41-1090 2nd* 41-1138 Original 41-1043 2nd* 41-1091 2nd* 41-1139 Original 41-1044 2nd* 41-1092 2nd* 41-1140 Original 41-1045 2nd* 41-1093 2nd* 41-1141 Original 41-1046 2nd* 41-1094 2nd* 41-1142 Original 41-1047 2nd* 41-1095 2nd* 41-1143 Original 41-1048 2nd* 41-1096 2nd* 41-1144 Original 41-1049 2nd* 41-1097 2nd* 41-1145 Original 41-1050 2nd* 41-1098 2nd* 41-1146 Original

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 33rd Revised Page 1.36 Cancels 32nd Revised Page 1.36

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 41-1147 Original 41-1195 2nd* 41-1243 2nd* 41-1148 Original 41-1196 2nd* 41-1244 2nd* 41-1149 Original 41-1197 2nd* 41-1245 2nd* 41-1150 Original 41-1198 2nd* 41-1246 2nd* 41-1151 Original 41-1199 2nd* 41-1247 2nd* 41-1152 Original 41-1200 2nd* 41-1248 2nd* 41-1153 Original 41-1201 2nd* 41-1249 2nd* 41-1154 Original 41-1202 2nd* 41-1250 2nd* 41-1155 Original 41-1203 2nd* 41-1251 2nd* 41-1156 Original 41-1204 2nd* 41-1252 2nd* 41-1157 Original 41-1205 2nd* 41-1253 2nd* 41-1158 Original 41-1206 2nd* 41-1254 2nd* 41-1159 Original 41-1207 2nd* 41-1255 2nd* 41-1160 Original 41-1208 2nd* 41-1256 2nd* 41-1161 Original 41-1209 2nd* 41-1257 2nd* 41-1162 Original 41-1210 2nd* 41-1258 2nd* 41-1163 Original 41-1211 2nd* 41-1259 2nd* 41-1164 Original 41-1212 2nd* 41-1260 2nd* 41-1165 Original 41-1213 2nd* 41-1261 2nd* 41-1166 Original 41-1214 2nd* 41-1262 2nd* 41-1167 Original 41-1215 2nd* 41-1263 2nd* 41-1168 Original 41-1216 2nd* 41-1264 2nd* 41-1169 Original 41-1217 2nd* 41-1265 2nd* 41-1170 Original 41-1218 2nd* 41-1266 2nd* 41-1171 Original 41-1219 2nd* 41-1267 2nd* 41-1172 Original 41-1220 2nd* 41-1268 2nd* 41-1173 Original 41-1221 2nd* 41-1269 2nd* 41-1174 Original 41-1222 2nd* 41-1270 2nd* 41-1175 Original 41-1223 2nd* 41-1271 2nd* 41-1176 Original 41-1224 2nd* 41-1272 2nd* 41-1177 Original 41-1225 2nd* 41-1273 2nd* 41-1178 Original 41-1226 2nd* 41-1274 2nd* 41-1179 Original 41-1227 2nd* 41-1275 2nd* 41-1180 Original 41-1228 2nd* 41-1276 2nd* 41-1181 Original 41-1229 Original 41-1277 2nd* 41-1182 Original 41-1230 2nd* 41-1278 2nd* 41-1183 Original 41-1231 Original 41-1279 2nd* 41-1184 Original 41-1232 2nd* 41-1280 2nd* 41-1185 2nd* 41-1233 2nd* 41-1281 2nd* 41-1186 2nd* 41-1234 2nd* 41-1282 2nd* 41-1187 2nd* 41-1235 2nd* 41-1283 2nd* 41-1188 2nd* 41-1236 2nd* 41-1284 2nd* 41-1189 2nd* 41-1237 Original 41-1285 2nd* 41-1190 2nd* 41-1238 2nd* 41-1286 2nd* 41-1191 2nd* 41-1239 Original 41-1287 2nd* 41-1192 2nd* 41-1240 Original 41-1288 2nd* 41-1193 2nd* 41-1241 2nd* 41-1289 2nd* 41-1194 2nd* 41-1242 2nd*

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 29th Revised Page 1.37 Cancels 28th Revised Page 1.37

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 41-1290 2nd 41-1335 Original 41-1380 1st 41-1291 2nd 41-1336 Original 41-1381 Original 41-1292 2nd 41-1337 Original 41-1382 Original 41-1293 2nd 41-1338 Original 41-1383 Original 41-1294 2nd 41-1339 Original 41-1384 Original 41-1295 2nd 41-1340 Original 41-1385 Original 41-1296 Original 41-1341 Original 41-1386 Original 41-1297 Original 41-1342 Original 41-1387 Original 41-1298 Original 41-1343 Original 41-1388 Original 41-1299 Original 41-1344 Original 41-1389 Original 41-1300 Original 41-1345 Original 41-1390 Original 41-1301 Original 41-1346 Original 41-1391 Original 41-1302 Original 41-1347 Original 41-1392 Original 41-1303 2nd 41-1348 Original 41-1393 Original 41-1304 2nd 41-1349 Original 41-1394 Original 41-1305 2nd 41-1350 Original 41-1395 Original 41-1306 2nd 41-1351 Original 41-1396 Original 41-1307 2nd 41-1352 Original 41-1397 Original 41-1308 2nd 41-1353 Original 41-1398 Original 41-1309 2nd 41-1354 Original 41-1399 Original 41-1310 Original 41-1355 Original 41-1400 Original 41-1311 2nd 41-1356 Original 41-1401 Original 41-1312 Original 41-1357 Original 41-1402 Original 41-1313 2nd 41-1358 Original 41-1403 Original 41-1314 2nd 41-1359 Original 41-1404 Original 41-1315 Original 41-1360 Original 41-1405 Original 41-1316 Original 41-1361 Original 41-1406 Original 41-1317 2nd 41-1362 Original 41-1407 Original 41-1318 2nd 41-1363 Original 41-1408 Original 41-1319 2nd 41-1364 Original 41-1409 Original 41-1320 2nd 41-1365 Original 41-1410 Original 41-1321 2nd 41-1366 Original 41-1411 Original 41-1322 2nd 41-1367 Original 41-1412 Original 41-1323 2nd 41-1368 Original 41-1413 Original 41-1324 2nd 41-1369 Original 41-1414 Original* 41-1325 2nd 41-1370 Original 41-1415 Original* 41-1326 2nd 41-1371 Original 41-1416 Original* 41-1327 2nd 41-1372 Original 41-1417 Original* 41-1328 2nd 41-1373 Original 41-1418 Original* 41-1329 2nd 41-1374 Original 41-1419 Original* 41-1330 2nd 41-1375 Original 41-1420 Original* 41-1331 2nd 41-1376 Original 41-1421 Original* 41-1332 2nd 41-1377 Original 41-1422 Original* 41-1333 2nd 41-1378 1st 41-1423 Original* 41-1334 Original 41-1379 Original 41-1424 Original*

(This page filed under Transmittal No. 3274 )

Issued: December 10, 2008 Effective: December 11, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 23rd Revised Page 1.38 Cancels 22nd Revised Page 1.38

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 41-1425 Original 41-1471 Original 41-1518 Original 41-1426 Original 41-1472 Original 41-1519 Original 41-1427 Original 41-1473 Original 41-1520 Original 41-1428 Original 41-1474 Original 41-1521 Original 41-1429 Original 41-1475 Original 41-1522 Original 41-1430 Original 41-1476 Original 41-1523 Original 41-1431 Original 41-1477 Original 41-1524 Original 41-1432 Original 41-1478 Original 41-1525 Original 41-1433 Original 41-1479 Original 41-1526 Original 41-1434 Original 41-1480 Original 41-1527 Original 41-1435 Original 41-1481 Original 41-1528 Original 41-1436 Original 41-1482 Original 41-1529 Original 41-1437 Original 41-1483 Original 41-1530 Original 41-1438 Original 41-1484 Original 41-1531 Original 41-1439 Original 41-1485 Original 41-1532 Original 41-1440 Original 41-1486 Original 41-1533 Original 41-1441 Original 41-1487 Original 41-1534 Original 41-1442 Original 41-1488 1st 41-1535 Original 41-1443 Original 41-1489 Original 41-1536 Original 41-1444 Original 41-1491 Original 41-1537 Original 41-1445 Original 41-1492 Original 41-1538 Original 41-1446 Original 41-1493 Original 41-1539 Original 41-1447 Original 41-1494 Original 41-1540 Original 41-1448 Original 41-1495 Original 41-1541 Original 41-1449 Original 41-1496 Original 41-1542 Original 41-1450 Original 41-1497 Original 41-1543 Original 41-1451 Original 41-1498 Original 41-1544 Original 41-1452 Original 41-1499 Original 41-1545 Original 41-1453 Original 41-1500 Original 41-1546 Original 41-1454 Original 41-1501 Original 41-1547 Original 41-1455 Original 41-1502 Original 41-1548 Original 41-1456 Original 41-1503 Original 41-1549 Original 41-1457 Original 41-1504 Original 41-1550 Original 41-1458 Original 41-1505 Original 41-1551 Original 41-1459 Original 41-1506 Original 41-1552 Original* 41-1460 Original 41-1507 Original 41-1553 Original* 41-1461 Original 41-1508 Original 41-1554 Original* 41-1462 Original 41-1509 Original 41-1555 Original* 41-1463 Original 41-1510 Original 41-1556 Original* 41-1464 Original 41-1511 Original 41-1557 Original* 41-1465 Original 41-1512 Original 41-1558 Original* 41-1466 Original 41-1513 Original 41-1559 Original* 41-1467 Original 41-1514 Original 41-1560 Original* 41-1468 Original 41-1515 Original 41-1561 Original* 41-1469 Original 41-1516 Original 41-1562 Original* 41-1470 Original 41-1517 Original 41-1563 Original*

(This page filed under Transmittal No. 3315 )

Issued: March 2, 2011 Effective: March 3, 2011

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 23rd Revised Page 1.39 Cancels 22nd Revised Page 1.39

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-1565 Original 41-1611 Original 41-1657 Original 41-1566 Original 41-1612 Original 41-1658 Original 41-1567 Original 41-1613 Original 41-1659 Original 41-1568 Original 41-1614 Original 41-1660 Original 41-1569 Original 41-1615 Original 41-1661 Original 41-1570 Original 41-1616 Original 41-1662 Original 41-1571 Original 41-1617 Original 41-1663 Original 41-1572 Original 41-1618 Original 41-1664 Original 41-1573 Original 41-1619 Original 41-1665 Original 41-1574 Original 41-1620 Original 41-1666 Original 41-1575 Original 41-1621 Original 41-1667 Original 41-1576 Original 41-1622 Original 41-1668 Original 41-1577 Original 41-1623 Original 41-1669 Original 41-1578 Original 41-1624 Original 41-1670 Original 41-1579 Original 41-1625 Original 41-1671 Original 41-1580 Original 41-1626 Original 41-1672 Original 41-1581 Original 41-1627 Original 41-1673 Original 41-1582 Original 41-1628 Original 41-1674 Original 41-1583 Original 41-1629 Original 41-1675 Original 41-1584 Original 41-1630 Original 41-1676 Original 41-1585 Original 41-1631 Original 41-1677 1st 41-1586 Original 41-1632 Original 41-1678 Original 41-1587 Original 41-1633 Original 41-1679 Original 41-1588 Original 41-1634 Original 41-1680 Original 41-1589 Original 41-1635 Original 41-1681 Original 41-1590 Original 41-1636 Original 41-1682 Original 41-1591 Original 41-1637 Original 41-1683 Original 41-1592 Original 41-1638 Original 41-1684 Original 41-1593 Original 41-1639 Original 41-1685 Original 41-1594 Original 41-1640 Original 41-1686 Original 41-1595 Original 41-1641 Original 41-1687 Original 41-1596 Original 41-1642 Original 41-1688 Original 41-1597 Original 41-1643 Original 41-1689 Original 41-1598 Original 41-1644 Original 41-1690 Original 41-1599 Original 41-1645 Original 41-1691 Original 41-1600 Original 41-1646 Original 41-1692 Original 41-1601 Original 41-1647 Original 41-1693 Original 41-1602 Original 41-1648 Original 41-1694 Original 41-1603 Original 41-1649 Original 41-1695 Original 41-1604 Original 41-1650 Original 41-1696 Original* 41-1605 Original 41-1651 Original 41-1697 Original* 41-1606 Original 41-1652 Original 41-1698 Original* 41-1607 Original 41-1653 Original 41-1699 Original* 41-1608 Original 41-1654 Original 41-1700 Original* 41-1609 Original 41-1655 Original 41-1701 Original* 41-1610 Original 41-1656 Original 41-1702 Original* (This page filed under Transmittal No. 3371 )

Issued: March 29, 2013 Effective: March 30, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 20th Revised Page 1.40 Cancels 19th Revised Page 1.40

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-1703 1st 41-1750 Original 41-1797 Original 41-1704 1st 41-1751 Original 41-1798 Original 41-1705 1st 41-1752 Original 41-1799 Original 41-1706 1st 41-1753 Original 41-1800 Original 41-1707 1st 41-1754 Original 41-1801 Original 41-1708 1st 41-1755 Original 41-1802 Original 41-1709 1st 41-1756 Original 41-1803 Original 41-1710 1st 41-1757 Original 41-1804 Original 41-1711 1st 41-1758 Original 41-1805 Original 41-1712 1st 41-1759 Original 41-1806 Original 41-1713 1st 41-1760 Original 41-1807 Original 41-1714 1st 41-1761 Original 41-1808 Original 41-1715 1st 41-1762 Original 41-1809 Original 41-1716 1st 41-1763 Original 41-1810 Original 41-1717 1st 41-1764 Original 41-1811 Original 41-1718 1st 41-1765 Original 41-1812 Original 41-1719 1st 41-1766 Original 41-1813 Original 41-1720 Original 41-1767 Original 41-1814 Original 41-1721 Original 41-1768 Original 41-1815 Original 41-1722 Original 41-1769 Original 41-1816 Original 41-1723 Original 41-1770 Original 41-1817 Original 41-1724 Original 41-1771 Original 41-1818 Original 41-1725 Original 41-1772 Original 41-1819 Original* 41-1726 Original 41-1773 Original 41-1820 Original* 41-1727 Original 41-1774 1st 41-1821 Original* 41-1728 Original 41-1775 1st 41-1822 Original* 41-1729 Original 41-1776 1st 41-1823 Original* 41-1730 Original 41-1777 1st 41-1824 Original* 41-1731 Original 41-1778 1st 41-1825 Original* 41-1732 Original 41-1779 1st 41-1826 Original* 41-1733 Original 41-1780 1st 41-1827 Original* 41-1734 Original 41-1781 1st 41-1828 Original* 41-1735 Original 41-1782 1st 41-1829 Original* 41-1736 Original 41-1783 1st 41-1830 Original* 41-1737 Original 41-1784 1st 41-1831 Original* 41-1738 Original 41-1785 1st 41-1832 Original* 41-1739 Original 41-1786 1st 41-1833 Original* 41-1740 Original 41-1787 1st 41-1834 Original* 41-1741 Original 41-1788 1st 41-1835 Original* 41-1742 Original 41-1789 1st 41-1836 Original* 41-1743 Original 41-1790 1st 41-1837 Original* 41-1744 Original 41-1791 1st 41-1838 Original* 41-1745 Original 41-1792 1st 41-1839 Original* 41-1746 Original 41-1793 1st 41-1840 Original* 41-1747 Original 41-1794 1st 41-1841 Original* 41-1748 Original 41-1795 1st 41-1842 Original* 41-1749 Original 41-1796 1st 41-1843 Original* (This page filed under Transmittal No. 3419 )

Issued: December 15, 2015 Effective: December 30, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 1.41 Cancels 5th Revised Page 1.41

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-1844 Original 41-1889 Original 43-21 4th 41-1845 Original 41-1890 Original 43-22 3rd 41-1845 Original 41-1891 Original 43-22.1 2nd 41-1846 Original 41-1892 Original 43-23 3rd 41-1847 Original 41-1893 Original 43-23.1 2nd 41-1848 Original 42-1 2nd 44-1 5th 41-1849 Original 42-2 1st 44-2 Original 41-1850 Original 42-3 1st 44-3 Original 41-1851 Original 43.1 6th 44-4 Original 41-1852 Original 43-1.1 2nd 44-5 1st 41-1853 Original 43-2 4th 44-6 Original 41-1854 Original 43-3 4th 44-7 Original 41-1855 Original 43-4 6th 44-8 Original 41-1856 Original 43-5 4th 44-9 Original 41-1857 Original 43-6 4th 44-10 Original 41-1858 Original 43-7 4th 44-11 Original 41-1859 Original 43-8 3rd 44-12 1st 41-1860 Original 43-9 4th 44-13 4th 41-1861 Original 43-10 6th 44-13.1 Original 41-1862 Original 43-12 4th 44-14 1st 41-1863 Original 43-13 7th 44-15 2nd 41-1864 Original 43-14 6th 44-16 1st 41-1865 Original 43-14.1 2nd 44-16.1 Original 41-1866 Original 43-15 8th 44-17 2nd 41-1867 1st* 43-16 7th 44-17.1 Original 41-1868 Original 43-17 7th 44-18 2nd 41-1869 Original 43-18 2nd 44-18.1 Original 41-1870 Original 43-19 2nd 44-18.2 Original 41-1871 Original 43-20 2nd 44-18.3 Original 41-1872 Original 44-18.4 Original 41-1873 Original 44-18.5 Original 41-1874 Original 44-18.6 Original 41-1875 Original 44-18.7 Original 41-1876 Original 44-18.8 Original 41-1877 Original 44-18.9 Original 41-1878 Original 44-18.10 Original 41-1879 Original 44-18.11 Original 41-1880 Original 44-18.12 Original 41-1881 Original 44-18.13 Original 41-1882 Original 44-18.14 Original 41-1883 Original 44-18.15 Original 41-1884 Original 44-19 2nd 41-1885 Original 44-20 3rd 41-1886 Original 44-21 2nd 41-1887 Original 44-22 2nd 41-1888 Original 44-23 2nd (This page filed under Transmittal No. 3435 )

Issued: September 19, 2016 Effective: September 20, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 1.42

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

45-1 3rd 45-2 3rd 45-3 2nd 45-4 2nd 45-5 2nd 45-6 2nd 45-6.1 2nd 45-7 2nd 45-8 2nd 45-9 2nd 45-10 2nd 45-11 2nd 45-12 2nd 45-13 2nd 45-14 2nd 45-15 2nd 45-16 2nd 45-17 2nd 45-18 2nd 45-19 2nd 45-20 2nd 45-21 2nd 45-22 2nd 45-23 3rd 45-24 2nd 45-25 3rd 45-26 2nd

(This page filed under Transmittal No. 3426 )

Issued: May 16, 2016 Effective: May 17, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2

ACCESS SERVICE (T) TABLE OF CONTENTS (M) Page No. │ │ Check Sheet 1 │ (M) Table of Contents 2 (T) Concurring Carriers 32 │ │ Connecting Carriers 32 │ │ Other Participating Carriers 32 │ │ Service Marks 32 │ │ Registered Service Marks 32 │ │ Explanation of Symbols 33 │ │ Explanation of Abbreviations 33 │ │ Reference to Other Tariffs 37 │ │ Reference to Publications 37 │

1. APPLICATION OF TARIFF 1-1

Material and revised material appearing on this page formerly appeared on 9th Revised Page 2 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 3 Cancels 3rd Revised Page 3

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

2. GENERAL REGULATIONS 2-1

2.1 Undertaking of the Telephone Company 2-9

2.1.1 Scope 2-9 2.1.2 Limitations 2-10 2.1.3 Liability 2-11 2.1.4 Provision of Services 2-14 2.1.5 Operation and Maintenance 2-18 2.1.6 Refusal and Discontinuance of Services 2-20 2.1.7 Provision and Ownership of Telephone Numbers 2-23 2.1.8 Technical References 2-24 2.1.9 Metropolitan Statistical Area Access Services 2-24 2.1.10 Broadband Services 2-24

2.2 Use 2-25

2.2.1 Assignment and Transfer of Facilities 2-25 2.2.2 Unlawful and Abusive Use 2-26

2.3 Obligations of the Customer 2-27

2.3.1 Design of Customer Services 2-27 2.3.2 Connections 2-28 2.3.3 Equipment, Space and Power 2-29 2.3.4 Balance 2-30 2.3.5 Coordination with Respect to Network Contingencies 2-31 2.3.6 References to the Telephone Company 2-32 2.3.7 Damages 2-33 2.3.8 Claims and Demands for Damages 2-34 2.3.9 Customer Provided Reports 2-35 2.3.10 VoIP – PSTN Traffic 2-35 (N)

(This page filed under Transmittal No. 3335 )

Issued: January 31, 2012 Effective: February 15, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 4 Cancels 2nd Revised Page 4

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

2. GENERAL REGULATIONS (Cont'd)

2.4 Jurisdictional Report Requirements 2-36

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma 2-37 2.4.2 Percentage of Interstate Use (PIU) for Texas 2-52.3 2.4.3 Certification Requirements 2-53

2.5 Billing Regulations 2-55

2.5.1 Advance Payments 2-55 2.5.2 Deposits and Other Payments 2-55.1 (T) 2.5.3 Payment of Rates and Charges 2-62 2.5.4 Minimum Periods 2-72 2.5.5 Missed Installation on Confirmed Due Date 2-72.1 2.5.6 Credit Allowance for Service Interruptions 2-73 (T) 2.5.7 Service Assurance Warranty Schedule (SAWS) 2-76.11

2.6 Jointly Provided Access Services 2-82

2.6.1 Single Bill Arrangement 2-83 2.6.2 Single Bill - Single Tariff Meet Point Billing Arrangement 2-84 2.6.3 Multiple Bill Meet Point Billing Arrangement 2-86

2.7 Definitions 2-92

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 5 Cancels Original Page 5

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

3. CARRIER COMMON LINE ACCESS SERVICE 3-1

3.1 General Description 3-2

3.2 Service Provisioning 3-3

3.3 Rate Regulations 3-4

3.3.1 Rate Element 3-5 3.3.2 CCL Usage Rates 3-6 (T) 3.3.3 PICC Monthly Rates 3-10.1 (N) 3.3.4 Determining Chargeable Access Minutes 3-11 (T) 3.3.5 Adjustment for Resold MTS and MTS-type Services 3-12 (T) 3.3.6 Exceptions to Carrier Common Line Charges 3-19 (T)

3.4 Rates and Charges 3-20

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6 Cancels Original Page 6

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

4. END USER ACCESS SERVICE 4-1

4.1 General Description 4-2

4.2 Service Provisioning 4-2

4.3 Rate Regulations 4-3

4.3.1 End User Common Line Rate Elements 4-3.1 (T) 4.3.2 Federal Universal Service Fund (FUSF) Surcharge 4-5.2 (N) 4.3.3 Minimum Period 4-6 (T) 4.3.4 Cancellation of Application 4-6 4.3.5 Changes to Orders 4-6 4.3.6 Allowance for Interruptions 4-6 4.3.7 Temporary Suspension of Service 4-6 4.3.8 Exceptions to End User Common Line Charges and Federal Universal Service Fund (FUSF)Surcharge 4-7 (T)

4.4 Rates and Charges 4-8

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 7 Cancels 2nd Revised Page 7

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

5. ORDERING FOR ACCESS SERVICE 5-1

5.1 General 5-3

5.2 Access Order 5-4

5.2.1 Ordering Conditions 5-4 5.2.2 Ordering Requirements 5-5 5.2.3 Service Provisioning Intervals 5-18 5.2.4 Selection of Facilities for Access Orders 5-19 5.2.5 Shared Use 5-20 (D) 5.2.6 Provision of Other Services 5-21

5.3 Rate Regulations 5-23

5.3.1 Access Order Charges 5-23 5.3.2 Access Order Modification Charges 5-25 5.3.3 Access Order Cancellation Charges (for the (T) following Special Access Services: Self-healing Transport Network (STN) and ReliaNet) 5-31 5.3.4 Minimum Period Requirements 5-34.3 (T)

5.4 Rates and Charges 5-35

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 8 Cancels 4th Revised Page 8

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

6. SWITCHED ACCESS SERVICE 6-1

6.1 General Description 6-6

6.2 Feature Group Descriptions 6-8

6.2.1 Feature Group A (FGA) 6-9 6.2.2 Feature Group B (FGB) 6-12 6.2.3 Reserved for Future Use 6-15 (T) 6.2.4 Feature Group D (FGD) 6-18

6.3 Basic Serving Arrangement Descriptions 6-22

6.3.1 Circuit Switched - Line side BSA (BSA-A) 6-23 (T) 6.3.2 Circuit Switched - Trunk Side Alternative B (BSA-B) 6-26 6.3.3 Reserved for Future Use 6-30 (T) 6.3.4 Circuit Switched - Trunk Side Alternative D (BSA-D) 6-34 6.3.5 Dedicated Network Access Line (DNAL) BSA 6-39

6.4 Miscellaneous Services Descriptions 6-41 (T)

6.4.1 WATS Access Line Service 6-41 6.4.2 800 Number Portability Access Service (800 NPAS) 6-42 (T) 6.4.3 900 Access Service 6-44 6.4.4 Advanced Carrier Identification Service (ACIS) 6-45.1

6.5 Switched Transport 6-45.3

6.5.1 Switched Transport Facilities 6-45.4 6.5.2 Switched Transport Connections 6-45.5 6.5.3 Hubbing 6-45.9

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 9 Cancels 2nd Revised Page 9

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

6. SWITCHED ACCESS SERVICE (Cont'd)

6.6 Switched Access Features and Basic Service Elements 6-46

6.6.1 Switched Transport Features 6-47 6.6.2 Local Switching - Common Switching Features 6-51 6.6.3 Local Switching - Transport Termination Features 6-73 6.6.4 Local Switching - Line Termination Features 6-81 6.6.5 Basic Service Elements 6-83

6.7 Service Provisioning 6-95

6.7.1 Manner of Provisioning 6-95 6.7.2 Design and Traffic Routing of Switched Access Service 6-98 6.7.3 Design Blocking Probability 6-99 6.7.4 Determining the Number of Transmission Paths 6-102 6.7.5 Determining the Number of End Office Transport Terminations 6-103 6.7.6 Interface Groups 6-104 6.7.7 DNAL Network Channel Interfaces 6-111 6.7.8 Transmission Specifications 6-112 6.7.9 Supervisory Signaling 6-117 6.7.10 Testing 6-118 6.7.11 Network Management 6-120 6.7.12 Media Stimulated Mass Calling Events 6-121 6.7.13 Design Layout Report 6-122 6.7.14 Provision of Service Performance Data 6-123 6.7.15 Trunk Group Measurement Reports 6-124 6.7.16 Percent Direct Routed Factor 6-124 6.7.17 Percent Tandem Signaling Factor 6-124.2 6.7.18 Tandem Signaling Terminating Billing Data 6-124.3

Revised material is filed under authority of Special Permission No. 95-81 of the F.C.C.

(This page filed under Transmittal No. 2420 )

Issued: January 20, 1995 Effective: January 24, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 10 Cancels 6th Revised Page 10

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

6. SWITCHED ACCESS SERVICE (Cont'd)

6.8 Rate Regulations 6-125

6.8.1 Rate Elements 6-126 6.8.2 Nonrecurring Charges 6-130 6.8.3 Monthly Recurring and Usage Rates 6-141 6.8.4 Determining Chargeable Access Minutes 6-151 6.8.5 Determining Switched Transport Mileage and Charges 6-163 6.8.6 Minimum Period Charges 6-166 6.8.7 Message Unit Credit 6-167 6.8.8 Reserved for Future Use 6-168 (T) 6.8.9 Change of Feature Group Type or Basic Serving Arrangements 6-170 6.8.10 Moves 6-171 6.8.11 Application of Rates for Extension Service 6-175 6.8.12 Shared Use 6-176 6.8.13 Application of Rates for FGA Service to Directory Assistance Service 6-177 6.8.14 Non-Access Charges 6-178 6.8.15 Zone Pricing 6-178.10

6.9 Rates and Charges 6-179

6.9.1 Reserved for Future Use 6-179 (T) 6.9.2 Switched Transport 6-179 6.9.3 Local Switching 6-185 6.9.4 Basic Service Elements 6-200 6.9.5 Administrative Changes 6-206 6.9.6 Information Surcharge 6-208 6.9.7 Dedicated Network Access Link (DNAL) 6-208 6.9.8 800 Number Portability Access Service (NPAS) 6-209 6.9.9 Advanced Carrier Identification Service (ACIS) 6-209 6.9.10 Message Unit Credit 6-209

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 11 Cancels 9th Revised Page 11

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

7. SPECIAL ACCESS SERVICES 7-1

7.1 Service Provisioning 7-7

7.1.1 Types of Service Configurations 7-8 7.1.2 Types of Channels 7-12 7.1.3 Hubs 7-13 7.1.4 Ordering Options and Provisions 7-16 7.1.5 Alternate Use 7-18 7.1.6 Diversity 7-19 7.1.7 Acceptance Testing 7-20 7.1.8 Design Layout Report 7-22

7.2 Rate Regulations 7-23

7.2.1 Rate Elements 7-24 7.2.2 Monthly Rates 7-27 7.2.3 Daily Rates 7-28 7.2.4 Nonrecurring Charges 7-29 7.2.5 Surcharge for Special Access Service 7-35 7.2.6 Mileage Measurement 7-39 7.2.7 Moves 7-40 7.2.8 Minimum Periods 7-43 7.2.9 Facility Hubs 7-44 7.2.10 Shared Use 7-46 7.2.11 WATS Access Lines 7-48 7.2.12 Two-Point Service 7-50 7.2.13 Multipoint Service 7-51 7.2.14 Multiplexed Service 7-53 7.2.15 Alternate Use 7-54 7.2.16 Customized Channels 7-55 7.2.17 Message Station Equipment Recovery Charge 7-56 7.2.18 Service to Service Through Connect Arrangements 7-57 7.2.19 Optional Payment Plan 7-58 7.2.20 High Capacity Term Pricing Plan (HC-TPP) 7-65.1 7.2.21 Reserved for Future Use 7-66 (T) 7.2.22 DS1 Term Pricing Plan (DS1 TPP) 7-68.1 7.2.23 Video Pricing Plan (VPP)(1) 7-68.4 7.2.24(1)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 12 Cancels 7th Revised Page 12

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

7. SPECIAL ACCESS SERVICES (Cont'd)

7.3 Service Descriptions, Rates and Charges 7-69

7.3.1 General 7-69 7.3.2 Metallic Service 7-74 7.3.3 Telegraph Service 7-77 7.3.4 Voice Grade Service 7-79 7.3.5 Program Audio Service 7-127 7.3.6 Video Service 7-133 7.3.7 Reserved for Future Use 7-140 (T) 7.3.8 Reserved for Future Use 7-145 (T) 7.3.9 MegaLink Data Service 7-149 7.3.10 High Capacity Service 7-170 7.3.11 Reserved for Future Use 7-210 7.3.12(1) 7-212.1

7.4 Miscellaneous Rates and Charges 7-213

7.5 Individual Case Filings 7-215

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 13 Cancels 2nd Revised Page 13

TABLE OF CONTENTS

Page No.

8. Term Plan Vintage Rates 8-1 (T) 8.1 Rates and Charges 8-2 (N)

8.1.1 General Regulations 8-2

8.1.2 Vintage Rates 8-2 (N)

(This page filed under Transmittal No. 2896 )

Issued: May 3, 2002 Effective: May 18, 2002

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 14 Cancels Original Page 14

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

9. DIRECTORY ASSISTANCE ACCESS SERVICE 9-1

9.1 General 9-2

9.2 Service Description 9-3

9.3 Service Provisioning 9-4

9.3.1 Manner of Provisioning 9-4 9.3.2 Determining the Number of Transmission Paths 9-6 9.3.3 Interface Groups 9-7 9.3.4 Transmission Specifications 9-8 9.3.5 Supervisory Signaling 9-9 9.3.6 Testing 9-10 9.3.7 Special Facilities Routing 9-12 9.3.8 Design Layout Report 9-13

9.4 Rate Regulations 9-14

9.4.1 Rate Categories 9-15 9.4.2 Nonrecurring Charges 9-16 9.4.3 Monthly Recurring and Usage Rates 9-17 (T) 9.4.4 DA Minimum Period 9-18 9.4.5 Credit Allowance for DA Service 9-19 9.4.6 Moves 9-21

9.5 Rates and Charges 9-22

(This page filed under Transmittal No. 2357 )

Issued: May 17, 1994 Effective: July 1, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 15 Cancels 5th Revised Page 15

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

10. FEDERAL GOVERNMENT SPECIALIZED SERVICES OR ARRANGEMENTS 10-1

10.1 General 10-3

10.2 Service Provisioning 10-4

10.3 Service Descriptions 10-6

10.3.1 Voice Grade Special Access Service 10-7 10.3.2 Reserved for Future Use 10-10 (T) 10.3.3 Special Routing Access Service 10-11 10.3.4 Telecommunications Service Priority (TSP) System 10-12 10.3.5 Federal Government Telecommunications Services (FGTS)* 10-13.1 10.3.6 Government Emergency Telecommunications Service (GETS) 10-13.2

10.4 Rate Regulations 10-14

10.5 Rates and Charges 10-19

10.5.1 Voice Grade Special Access Service 10-19 10.5.2 Reserved for Future Use 10-20 (T) 10.5.3 Special Routing Access Service 10-21 10.5.4 Telecommunications Service Priority (TSP) System 10-23 10.5.5 Federal Government Telecommunications Services (FGTS)* 10-23.1 10.5.6 Government Emergency Telecommunications Service (GETS) 10-23.2

10.6 Individual Case Filings 10-24

*Effective November 25,2004, Federal Government Telecommunications Services for Megalink Data Service, Voice Grade 4-wire Service, High Capacity DS1 Service, and Megalink Custom Service will no longer be available to new customers. There will be no change to existing customers.

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 16 Cancels 4th Revised Page 16

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

11.(1) 11-1 (T)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 17

ACCESS SERVICE (T) TABLE OF CONTENTS (M) Page No. (T) 12. SPECIALIZED SERVICE OR ARRANGEMENTS 12-1 │ │ 12.1 General Description 12-2 │ │ 12.2 Rate Regulations 12-3 │

12.3 Rates and Charges 12-4

Material and revised material appearing on this page formerly appeared on 8th Revised Page 10.1 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 19th Revised Page 18 Cancels 18th Revised Page 18

TABLE OF CONTENTS

Page No.

13. ADDITIONAL ENGINEERING, ADDITIONAL LABOR AND MISCELLANEOUS SERVICES 13-1

13.1 Additional Engineering 13-4

13.2 Additional Labor 13-5

13.2.1 Overtime Installation 13-5 13.2.2 Reserved for future use 13-5 13.2.3 Stand By 13-5 13.2.4 Testing and Maintenance with Other Telephone Companies 13-6 13.2.5 Other Labor 13-6

13.3 Miscellaneous Services 13-7

13.3.1 Easy Access Dialing 13-7 13.3.2 Maintenance of Service 13-20 13.3.3 Access Services Billing 13-22 13.3.4 Reserved for Future Use 13-23 (T) 13.3.5 Registered Jacks - Registration Program 13-24 13.3.6 Testing Services for Switched Access Services 13-25 13.3.7 Testing Services for Special Access, MegaLink Custom Service and Self-healing Transport Network (STN) 13-32 13.3.8 International Blocking 13-34 (T) 13.3.9 Billing Name and Address Service 13-34.1 13.3.10 900 Call Restriction 13-34.4 13.3.11 MEGA Bill Service 13-34.5 13.3.12 Selective Class of Call Screening (SCOCS) 13-34.8 13.3.13 Answer Supervision Line Side 13-34.9 13.3.14 Reserved for future use 13-34.9 13.3.15 Long Distance Trouble Management Services (LDMTS) 13-34.10

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 16th Revised Page 19 Cancels 15th Revised Page 19

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

13. ADDITIONAL ENGINEERING, ADDITIONAL LABOR AND MISCELLANEOUS SERVICES (Cont'd)

13.4 Rates and Charges 13-35

13.4.1 Additional Engineering 13-35 13.4.2 Additional Labor 13-36 13.4.3 Easy Access Dialing 13-37 13.4.4 Reserved for Future Use 13-38 13.4.5 Access Services Billing 13-39 13.4.6 Reserved for Future Use 13-40 13.4.7 Reserved for Future Use 13-41 13.4.8 Testing Services for Switched Access Services 13-46 13.4.9 Testing Services for Special Access Service, MegaLink Custom Service, STN and SBNS Services 13-55 (T) 13.4.10 Protective Connecting Arrangements 13-56 13.4.11 International Blocking 13-61 13.4.12 Billing Name and Address Service 13-61 13.4.13 900 Call Restriction 13-62 13.4.14 MEGA Bill Service 13-63 13.4.15 Selective Class of Call Screening (SCOCS) 13-63 13.4.16 Answer Supervision Line Side 13-63 13.4.17 Reserved for future use 13-63 13.4.18 Long Distance Trouble Management Services (LDTMS) 13-64 13.4.19 Data Trouble Management Services 13-65 (N)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 20 Cancels 5th Revised Page 20

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

14. PACKET SERVICE 14-1

14.1 MicroLink II Service(2) 14-4 (C)

14.1.1 General Description 14-4

14.1.2 Access Termination Descriptions 14-7

(A) Public Dial(1) 14-7 (B) Private Dial(1) 14-8 (C) Dedicated Access 14-9

14.1.3 Miscellaneous Service Elements 14-11

(A) Rearrangement of User Facilities 14-11 (B) Call Establishment 14-12 (C) Character Transmission 14-12 (D) User Identification(1) 14-13

14.1.4 Features and Basic Service Elements 14-14

14.1.5 Primary Market Areas 14-20

14.1.6 Rate Regulations 14-26

(A) Description and Application of Rates and Charges 14-26 (B) Minimum Period Charges 14-36

14.2 Reserved for Future Use 14-36.1

(1) This element is obsolete and limited to existing installations, for existing customers, as of September 30, 1997 and will no longer be available after April 1, 1999.

(2)As of October 6, 2004, MicroLink service utilizing the X.75 protocol (N) is obsolete and limited to existing installations, at existing locations, (N) for existing customers. (N)

(This page filed under Transmittal No. 3008 )

Issued: September 21, 2004 Effective: October 6, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 20.1 Cancels 12th Revised Page 20.1

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

14. PACKET SERVICE (Cont'd)

14.3 Reserved for Future Use 14-55.11

14.4 Rates and Charges 14-56

14.4.1 MicroLink II Service(1) 14-56

(A) Arkansas 14-56 (B) Kansas 14-68 (C) Missouri 14-80 (D) Oklahoma 14-95 (E) Texas 14-110

(D)

(D)

(1) As of October 6, 2004, MicroLink II service utilizing the X.75 protocol is obsolete and limited to existing installations, at existing locations, for existing customers.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 20.2 Cancels 1st Revised Page 20.2

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

14. Packet Service (Cont'd)

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 20.3 Cancels 3rd Revised Page 20.3

ACCESS SERVICE

TABLE OF CONTENTS

14. PACKET SERVICE (Cont'd) Page No.

(D)

(D)

(D)

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 21 Cancels Original Page 21

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

15. OPERATING TERRITORY OF THE TELEPHONE COMPANY 15-1

(D)

(D)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 22 Cancels 1st Revised Page 22

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

16. OPERATOR SERVICES 16-1

16.1 General Description 16-2

16.2 Operator Call Processing Service Description 16-3

16.2.1 0perator Transfer Service Description 16-3 (T) 16.2.2 Inward Assistance Service Description 16-4

16.3 Service Provisioning 16-5

16.3.1 Manner of Provisioning 16-5 16.3.2 0perator Transfer 16-7 16.3.3 Design Blocking 16-8 16.3.4 Interface Groups and Transmission Parameters 16-9 16.3.5 Signaling 16-10 16.3.6 Testing 16-11 16.3.7 Design Layout Report 16-12

16.4 Liability of the Telephone Company 16-13

16.5 Rate Regulations 16-15

16.5.1 Rate Categories 16-16

16.6 Rates and Charges 16-20

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 23 Cancels 2nd Revised Page 23

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

17. Reserved for Future Use 17-1 (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 24 Cancels 6th Revised Page 24

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

18. Network Management Services 18-1

18.1 Network Reconfiguration Service 18-3

18.1.1 General 18-4 18.1.2 Network Reconfiguration Options 18-5 18.1.3 Network Reconfiguration Functions 18-6 18.1.4 Technical Specifications 18-8 18.1.5 Rate Regulations 18-9 18.1.6 Rates and Charges 18-15

(D)

(D)

(This page filed under Transmittal No. 3437 )

Issued: December 1, 2016 Effective: December 16, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 25 Cancels 1st Revised Page 25

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

19. SELF-HEALING TRANSPORT NETWORK 19-1

19.1 General Description 19-3

19.2 Service Provisioning 19-7

19.2.1 Testing 19-7 19.2.2 Design Layout Report 19-8 19.2.3 Special Construction 19-8

19.3 Rate Regulations 19-9

19.3.1 Rate Categories 19-9 (T) 19.3.2 Nonrecurring Charges 19-13 19.3.3 Monthly Recurring Rates 19-16 19.3.4 Determining Transport Mileage 19-19 19.3.5 STN Minimum Period 19-20 19.3.6 Recast of Minimum Period 19-21 19.3.7 Moves 19-22 19.3.8 Additions of Service 19-23 19.3.9 Optional Renewal Periods 19-25 19.3.10 Upgrades 19-25.2 (N) 19.3.11 Shared Use 19-26 (T) 19.3.12 Assignment Control 19-29 19.3.13 Special Access Surcharge 19-30 19.3.14 Message Station Equipment Recovery Charge 19-31 19.3.15 Termination Options 19-32 (T) 19.3.16 Transitioning from Other Access Services to STN 19-36.2 (N) 19.3.17 DTL Portability 19-36.3 (N)

19.4 Rates and Charges 19-36.4 (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 26 Cancels 3rd Revised Page 26

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

20. MEGALINK CUSTOM SERVICES 20-1

20.1 General Description 20-5

20.2 Optional Feature, BSE and Function Descriptions 20-10

20.2.1 Central Office Multiplexing BSE 20-10 20.2.2 SecureNet 20-10 20.2.3 Service Extension 20-14 20.2.4 STN Interconnection with SecureNet Equipped MegaLink Custom Service 20-14.1 20.2.5 C-Bit Parity Framing Format Option 20-14.1 (N)

20.3 Service Provisioning 20-15

20.3.1 Design Layout Report 20-15 20.3.2 Acceptance Testing 20-15 20.3.3 Diversity 20-15

20.4 Rate Regulations 20-16

20.4.1 Rate Categories 20-16.1 (T) 20.4.2 Nonrecurring Charges 20-20 20.4.3 Monthly Recurring Rates 20-25 20.4.4 Billing Period 20-30 20.4.5 Minimum Service Periods 20-31 20.4.6 Termination Charges 20-32 20.4.7 Determining Interoffice Mileage 20-34 20.4.8 Ordering Options and Conditions 20-35 20.4.9 Special Access Surcharge 20-35 20.4.10 Message Station Equipment Recovery Charge 20-35 20.4.11 Shared Use 20-36 20.4.12 Moves 20-37 20.4.13 Modification of Service 20-39 20.4.14 Relocation of a DS3 to DS1 Multiplexer 20-40 20.4.15 Service Extension 20-41 20.4.16 Facility Hubs 20-41 20.4.17 Connecting Facility Assignment Credits 20-41.1 20.4.18 Temp-DS3 Service 20-41.4

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 27 Cancels 1st Revised Page 27

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

20. MEGALINK CUSTOM SERVICES (Cont'd)

20.5 Rates and Charges 20-42

20.5.1 Channel Termination - Electrical (All Zones) 20-42 20.5.2 Channel Termination - Optical (All Zones) 20-47.2 20.5.3 Interoffice Mileage - Fixed (All Zones) 20-47.7 20.5.4 Interoffice Mileage - Per Mile (All Zones) 20-47.13 20.5.5 Installation Charge (All Zones) 20-47.21 20.5.6 Service to Service Through Connect Arrangement (All Zones) 20-47.25 20.5.7 Optional Features, BSEs and Functions (All Zones) 20-47.28 20.5.8 Administrative Charges 20-47.66

20.6 Vintage Services 20-48

20.6.1 Services Established Prior to May 25, 1991 20-49

(This page filed under Transmittal No. 2563 )

Issued: August 1, 1996 Effective: September 1, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 28 Cancels 1st Revised Page 28

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

21. COIN SERVICES 21-1

21.1 General Description 21-2

21.2 Service Description 21-3

21.2.1 1+ InterLATA Routing 21-3 21.2.2 101XXXX Routing 21-4 (D)

21.3 Service Provisioning 21-5

21.3.1 Call Set Up Signaling 21-5 21.3.2 Equal Access End Office (EAEO) Provisioning 21-6 21.3.3 Testing 21-7 21.3.4 Ordering 21-8

21.4 Rate Regulations 21-9

21.4.1 Liability 21-10 21.4.2 Provision of Message Call Detail Concerning Station Monies 21-11 21.4.3 Payment of Sent-Paid Monies 21-12 21.4.4 Audit Provisions 21-15

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 29 Cancels Original Page 29

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

22. DARK FIBER FACILITY ARRANGEMENT 22-1

22.1 General Description 22-2

22.2 Rate Regulations 22-3

22.2.1 Rate Categories 22-3 22.2.2 Determining Fiber Optic Mileage 22-4 22.2.3 Nonrecurring Charges 22-4 22.2.4 Monthly Recurring Rates 22-6 (T) 22.2.5 Minimum Period 22-6

22.3 Rates and Charges 22-7

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 30 Cancels 2nd Revised Page 30

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

23. COMMON CHANNEL SIGNALING/SIGNALING SYSTEM 7 (CCS/SS7) INTERCONNECTION SERVICE 23-1

23.1 General Description 23-2

23.2 Service Provisioning 23-3

23.2.1 Manner of Provisioning 23-3 23.2.2 Transmission Specifications 23-4 23.2.3 Acceptance Testing 23-4 23.2.4 Network Management 23-5 23.2.5 Provision of Service Performance Data 23-5 23.2.6 Forecast Report 23-6 23.2.7 Consolidation of STPs 23-6 (N)

23.3 Rate Regulations 23-7

23.3.1 Rate Categories 23-8 23.3.2 Nonrecurring Charges 23-10 23.3.3 Monthly Rates 23-11 23.3.4 Determining Mileage and Charges 23-12 23.3.5 Minimum Period 23-12 23.3.6 Moves 23-12 23.3.7 Shared Use 23-12.1

23.4 Rates and Charges 23-13

(This page filed under Transmittal No. 3415 )

Issued: October 13, 2015 Effective: October 28, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 31 Cancels 1st Revised Page 31

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

24. LINE INFORMATION DATA BASE (LIDB) SERVICE 24-1

24.1 General Description 24-2

24.2 LIDB Service Applications 24-3

24.3 Service Provisioning 24-5

24.3.1 Manner of Provisioning 24-5 24.3.2 Limitations 24-6 24.3.3 LIDB Data Specifications 24-7 24.3.4 Provision Against Fraudulent Use of Service 24-8 24.3.5 Provision of Billing Information 24-9 24.3.6 Testing 24-10 24.3.7 CCS Network Performance 24-11 24.3.8 LIDB Service System Performance 24-12 24.3.9 LIDB Service System Management 24-13 (T)

24.4 Rate Regulations 24-14

24.4.1 Rate Elements 24-15 24.4.2 Nonrecurring Charges 24-16 24.4.3 Usage Rates 24-18 24.4.4 Determining Usage Charges 24-19

24.5 Rates and Charges 24-20

24.5.1 LIDB Query Transport 24-20 24.5.2 LIDB Service Applications 24-20 24.5.3 Service Establishment Charge 24-20

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 31.1 Cancels 8th Revised Page 31.1

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

25. EXPANDED INTERCONNECTION 25-1 (T)

25.1 General Description 25-3

25.2 Virtual Collocation 25-4

25.2.1 Provisioning 25-5 25.2.2 Training 25-13 25.2.3 Acceptance Testing 25-14 25.2.4 Reserved for Future Use 25-14 25.2.5 Third Party Vendor 25-14.1 25.2.6 Maintenance and Operation Management 25-14.3

25.3 Microwave Transmission Facilities 25-15

25.4 Fresh Look 25-15

25.5 Rate Regulations for Virtual Collocation 25-17.1

25.5.1 Rate Elements 25-17.1 25.5.2 Nonrecurring Charges 25-20 25.5.3 Monthly Recurring Charges 25-22 25.5.4 Minimum Period Charges 25-24 25.5.5 Moves 25-25 25.5.6 Shared Use 25-25.1 25.5.7 Rates and Charges 25-26

25.6 Individual Case Filings 25-30.8.1 (T)

25.7 Interconnection Cross Connects 25.30.11.1 (N)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 31.2 Cancels 4th Revised Page 31.2

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

26. Telecommunications Relay Interconnection Service (TRIS) 26-1 (T)

26.1 General Description 26-2

26.2 Service Description 26-3

26.3 Service Provisioning 26-4

26.3.1 Channel Interfaces 26-4 26.3.2 Transmission Specifications 26-4 26.3.3 Testing 26-5 26.3.4 Network Management 26-6 26.3.5 Design Layout Report 26-6 26.3.6 Ordering 26-6

26.4 TRIS Recordings 26-7

26.5 Rate Regulations 26-8

26.5.1 Rate Elements 26-8 26.5.2 Nonrecurring Charges 26-9 26.5.3 Monthly Rates 26-9 26.5.4 Determining TRIS Access Mileage and Charges 26-10 26.5.5 Minimum Period 26-11 26.5.6 Moves 26-11

26.6 Rates and Charges 26-12

27. Diversity 27-1 (T)

27.1 General Description 27-3

27.2 Category Descriptions 27-4

27.2.1 Diversity BSE 27-4

27.3 Diversity Service Provisioning 27-7 (N)

27.4 Diversity Rates and Regulations 27-8 (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 31.3 Cancels 10th Revised Page 31.3

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

28. Reserved for Future Use 28-1 (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 31.4 Cancels 6th Revised Page 31.4

ACCESS SERVICE

TABLE OF CONTENTS

Page

29.(1) (D)

(D)

30.(1) (D)

(D)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 31.5 Cancels 3rd Revised Page 31.5

ACCESS SERVICE

TABLE OF CONTENTS

Page

31. Synchronous Broadband Network Services (SBNS) 31-1 (T)

31.1 Service Description - General 31-2 (T)

31.2 Service Provisioning 31-4 (T)

31.2.1 Types of Service Configurations 31-4 31.2.2 Types of Channels 31-5 31.2.3 Testing 31-6 31.2.4 Design Layout Report 31-7 31.2.5 Special Construction 31-7

31.3 ReliaNet Service 31-8 (T)

31.3.1 Service Description 31-8 (D) 31.3.2 Rate Regulations – (ReliaNet) 31-14 (T) 31.3.3 Rates and Charges 31-34.2 (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 21st Revised Page 31.6 Cancels 20th Revised Page 31.6

ACCESS SERVICE

TABLE OF CONTENTS Page

32. Incidental InterLATA Services 32-1 (T)

32.1 Miscellaneous Services 32-2 (T)

32.1.1 Incidental InterLATA SS7 Transport (SS7 Transport) 32-2

32.2 Rates and Charges 32-6 (T)

33.(1)

34. Service Provider Number Portability (SPNP) Service 34-1 (T)

34.1 SPNP General Description 34-2 (T)

34.2 SPNP Service Application 34-3

34.2.1 SPNP Query Service 34-3 (T) 34.2.2 SPNP Query Service - Database 34-5 (T) 34.2.3 Basic SPNP Service 34-5 (N)

34.3 Service Provisioning 34-6 (T)

34.3.1 Manner of Provisioning 34-7 34.3.2 Limitations 34-9 34.3.3 Network Management 34-10

34.4 Rate Regulations 34-11 (T)

34.4.1 Rate Elements 34-11 34.4.2 Nonrecurring Charges 34-13 34.4.3 Monthly Rates 34-13 (D) 34.4.4 Determining Usage Charges 34-13 (T)

34.5 Rates and Charges 34-14 (T)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 31.7 Cancels 9th Revised Page 31.7

TABLE OF CONTENTS Page

35. Reserved for Future Use 35-1 (T)

36. Internet Transport Access Service (ITAS) 36-1 (T)

36.1 Service Description 36-2 (T)

36.2 Service Components 36-2 (T)

36.3 Regulations 36-3 (T)

36.4 Rate Applications 36-4 (T)

36.5 Rates and Charges 36-7 (T)

37. Reserved for Future Use 37-1 (T)

38. Reserved for Future Use 38-1 (T)

39. Metropolitan Statistical Area Access Services 39-1 (T)

39.1 General Description 39-2 (T)

39.2 Metropolitan Statistical Areas 39-3 (T)

39.3 Service Available in an MSA 39-4 (T)

39.4 Rate Regulations 39-4 (T)

39.5 Rates and Charges 39-9 (T)

39.6 Wire Center Information 39-231 (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 23rd Revised Page 31.8 Cancels 22nd Revised Page 31.8

ACCESS SERVICE

TABLE OF CONTENTS Page

40. Pricing Flexibility Contract Offerings Jointly Administered by AT&T and Frontier Communications 40-1 (T) (T) 40.1 Contract Offer No. 182 – Special Access Service Offer 40-2 (D) 40.2 Contract Offer No. 185 – Access Service 40-9 (M) (M) 41. Pricing Flexibility Contract Offerings 41-1

41.1(1) 41.2(1) 41.3 Contract Offering No. 3 – DS3 Pack Offer 41-11 41.4(1)

41.5 Contract Offering No. 5 – Access Advantage Plus Transport Service- One Year Term 41-20 41.6 Contract Offering No. 6 – Access Advantage Plus Transport Service- Two Year Term 41-27 41.7 Contract Offering No. 7 – Access Advantage Plus Transport Service- Three Year Term 41-34 41.8 Contract Offering No. 8 – Access Advantage Plus Transport Service- One Year Term 41-41 41.9 Contract Offering No. 9 – Access Advantage Plus Transport Service- Two Year Term 41-48 41.10 Contract Offering No. 10 – Access Advantage Plus Transport Service- Three Year Term 41-55 41.11(1)

41.12 Contract Offering No. 12 – Access Advantage Plus Transport Service- One Year Term 41-67 41.13 Contract Offering No. 13 – Access Advantage Plus Transport Service- Two Year Term 41-74 41.14 Contract Offering No. 14 – Access Advantage Plus Transport Service- Three Year Term 41-81 41.15 Contract Offering No. 15 – MVP DS1,DS3 and OCN Service Offer 41-88 41.16 Contract Offering No. 16 – Access Advantage Plus Transport Service- One Year Term 41-98 41.17 Contract Offering No. 17 – Access Advantage Plus Transport Service- Two Year Term 41-105 41.18 Contract Offering No. 18 – Access Advantage Plus Transport Service- Three Year Term 41-112 41.19(1)

41.20 Contract Offering No. 20 – DS1, DS3 SONET Service Offer 41-125 41.21 Contract Offering No. 21 – Self-Healing Transport Network (STN) and Dedicated SONET Ring Service (DSRS) 41-136 41.22 Contract Offering No. 22 – Wireless Advantage Managed Plan 41-140 41.23(1) 41.24 Contract Offering No. 24 – Access Advantage Plus Transport Service- One Year Term 41-182 41.25 Contract Offering No. 25 – Access Advantage Plus Transport Service- Two Year Term 41-189 41.26 Contract Offering No. 26 – Access Advantage Plus Transport Service- Three Year Term 41-196 41.27(1) 41.28 Contract Offering No. 28 – Access Advantage Plus Transport Service- One Year Term 41-209 41.29 Contract Offering No. 29 – Access Advantage Plus Transport Service- Two Year Term 41-216 41.30 Contract Offering No. 30 – Access Advantage Plus Transport Service- Three Year Term 41-223 41.31 Contract Offer No. 31 – Special Access Service Offer 41-230 41.32 Contract Offer No. 32 – Self Healing Transport (STN) Option 12 41-257 Service Offer

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

Some material appearing on this page previously appeared on XXth Revised Page 31.12.

(This page filed under Transmittal No. 3402 )

Issued: November 6, 2014 Effective: November 21, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 43rd Revised Page 31.9 Cancels 42nd Revised Page 31.9

ACCESS SERVICE

TABLE OF CONTENTS Page 41. Pricing Flexibility Contract Offerings (Cont’d)

41.33 Contract Offer No. 33 – MegaLink Custom Service Offer 41-263 41.34(1) (D) 41.35 Contract Offer No. 35 – MVP DS1, DS3 and OCN Service Offer 41-275 (D) 41.36 Contract Offer No. 36 – MegaLink Custom Service Offer 41-294 41.37 Contract Offer No. 37 – Self Healing Transport Network (STN) 41-300 41.38(1) (D) 41.39 Contract Offer No. 39 – Self Healing Transport Network(STN) (D) Volume Option 3 Service Offer 41-315 41.40 Contract Offering No. 40 – ReliaNet Service Offer 41-322 41.41 Contract Offering No. 41 – Special Access Service Offer 41-326 41.42 Contract Offering No. 42 – Special Access Service Offer 41-334 41.43 Contract Offer No. 43 – Self Healing Transport (STN) Volume Option 12 Service Offer 41-342 41.44 Contract Offer No. 44 – MegaLink Custom Service Offer 41-349 41.45 Contract Offer No. 45 – MegaLink Custom Service Offer 41-356 41.46 Contract Offer No. 46 – Special Access OC3/DS1 Package Offer 41-363 41.47 Contract Offer No. 47 – Broadband Plan – Service Offer 41-370 41.48 Contract Offer No. 48 – Special Access Service Offer 41-392 41.49 Contract Offer No. 49 – DS3 Service Offer 41-422 41.50 Contract Offering No. 50 – Access Advantage Plus Transport Service – One Year Term 41-429 41.51 Contract Offering No. 51 – Access Advantage Plus Transport Service – Two Year Term 41-436 41.52 Contract Offering No. 52 – Access Advantage Plus Transport Service – Three Year Term 41-443 41.53 Contract Offer No. 53 – Optical Carrier Network (OCN) OC-48 Point-to-Point Offer 41-450 41.54 Contract Offering No. 54 – 2005 Access Extension Offer 41-455 41.55(1) 41.56 Contract Offer No. 56 – STN Service Offer 41-482 (D) 41.57 Contract Offer No. 57 – DS3 Service Offer 41-486 41.58 Contract Offer No. 58 – Special Access Service Offer 41-493 41.59 Contract Offer No. 59– Special Access Service Offer 41-512 41.60(1) 41.61(1) (D) (D) 41.62 Contract Offer No. 62 – DS1 Service Offer 41-532 (D) 41.63 Contract Offer No. 63 – DS1 Service Offer 41-539 41.64(1) (D) 41.65 Contract Offer No. 65 – OC-48 Dedicated SONET Ring Service (D) Offer 41-551 41.66 Contract Offering No. 66 – Access Discount Offer 41-561 41.67 Contract Offer No. 67 – OC-48 Dedicated SONET Ring Service Offer 41-594 41.68 Contract Offer No. 68 – OC-48 Dedicated SONET Ring Service Offer 41-605 41.69(1) 41.70 Contract Offering No. 70 – Access Advantage Plus Transport 41-620 (D) Service – One Year Term 41.71 Contract Offering No. 71 – Access Advantage Plus Transport 41-627 Service – Two Year Term 41.72 Contract Offering No. 72 – Access Advantage Plus Transport 41-634 Service – Three Year Term 41.73(1) 41.74(1) (D) (D)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 37th Revised Page 31.10 Cancels 36th Revised Page 31.10

ACCESS SERVICE

TABLE OF CONTENTS Page

41. Pricing Flexibility Contract Offerings (Cont’d)

41.75 Contract Offer No. 75 – Special Access Offer 41-654 41.76 Contract Offer No. 76 – OC-48 Dedicated SONET Ring Service Offer 41-669 41.77 Contract Offer No. 77 – Special Access Service Offer 41-680 41.78 Contract Offer No. 78 – Access Extension Offer 41-695 41.79(1) (D) (D) 41.80 Contract Offer No. 80 – DS1, DS3, and SONET Service Offer 41-708 41.81 Contract Offer No. 81 – SONET Service Offer 41-730 41.82 Contract Offer No. 82 – Wireless Advantage Managed Services Value Incentive Plan (WAMS-VIP) Offer 41-742 41.83 Contract Offer No. 83 – Access Advantage Plus Transport Service – One Year Term 41-776 41.84 Contract Offer No. 84 – Access Advantage Plus Transport Service – Two Year Term 41-783 41.85 Contract Offer No. 85 – Access Advantage Plus Transport Service – Three Year Term 41-790 41.86(1) (D) (D) 41.87 Contract Offer No. 87 – DS1 and DS3 Service Offer 41-805 41.88 Contract Offer No. 88 – ReliaNet Service Offer 41-810 41.89(1) (D) 41.90(1) (D) (D) 41.91 Contract Offer No. 91 – Wireless Advantage Managed Services Value Incentive Plan (WAMS-VIP) Offer 41-829 41.92(1) (D) 41.93(1) (D) (D) 41.94 Contract Offer No. 94 – Wireless Advantage Managed Services Value Incentive Plan (WAMS-VIP) Offer 41-873 41.95 Contract Offer No. 95 – DS1 and DS3 Service Offer 41-901 41.96 Contract Offer No. 96 - GigaMAN Service Offer 41-916 41.97 Contract Offer No. 97 – Wavelength Metropolitan Area Network (WaveMANSM) OC-48 Service Offer 41-921 41.98 Contract Offer No. 98 – Access Extension Offer 41-927 41.99(1) (D) (D) 41.100(1) (D) (D) 41.101 Contract Offer No. 101 – OC-48 Dedicated Ring Offer 41-946 41.102(1) (D) (D) 41.103 Contract Offer No. 103 – Access Service Offer 41-959 41.104 Contract Offer No. 104 – Access Advantage Plus Transport Service – One Year Term 41-981 41.105 Contract Offer No. 105 – Access Advantage Plus Transport Service – Two Year Term 41-988 41.106 Contract Offer No. 106 – Access Advantage Plus Transport Service – Three Year Term 41-995 41.107 Contract Offer No. 107 – Special Access Service Offer 41-1002 41.108 Contract Offer No. 108 – OC-12 Dedicated SONET Ring Service Offer 41-1022 41.109(1) (D) (D) 41.110 Contract Offer No. 110 – OC-12 SONET OCN Point to Point Offer 41-1035 41.111(1) (D) (D)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 36th Revised Page 31.11 Cancels 35th Revised Page 31.11

ACCESS SERVICE TABLE OF CONTENTS Page

41. Pricing Flexibility Contract Offerings (Cont’d) (1) 41.112 (D) (D) 41.113(1) (D) (D) 41.114 Contract Offer No. 114 – Self-Healing Transport Network (STN) Option 6 Service Offer 41-1064 41.115(1) (D) (D) 41.116 Contract Offer No. 116 – OC-12 Dedicated SONET Ring Service Offer 41-1079 41.117 Contract Offer No. 117— Price Flex MARC and Discount Freeze Option 41-1086 41.118(1) (D) (D) 41.119(1) (D) (D) 41.120(1) (D) 41.121 Contract Offer No. 121 – Special Access Bundle Service Offer 41-1109 (1) 41.122 (D)

(1) (D) 41.123 (D) 41.124(1) (D) (D) 41.125 Contract Offering No. 125 – ReliaNet Service Offer 41-1137 41.126 Contract Offering No. 126 – Access Advantage Plus Transport Service – One Year Term 41-1142 41.127 Contract Offering No. 127 – Access Advantage Plus Transport Service – Two Year Term 41-1149 41.128 Contract Offering No. 128 – Access Advantage Plus Transport Service – Three Year Term 41-1156 41.129 Contract Offer No. 129 – Self-Healing Transport Network (STN) Volume Option 3 Service Offer 41-1163 41.130 Contract Offer No. 130 – DS1 Service Offer 41-1170 41.131 Contract Offer No. 131 – OC-12 Dedicated SONET Ring Service Offer 41-1185 41.132(1) (D) 41.133 Contract Offer No. 133 – Optical Carrier Network (OCN) Point-to-Point Service Offer 41-1198 41.134 Contract Offer No. 134 – OC-12 Dedicated SONET Ring Service Offer 41-1209 (1) 41.135 (D) (D) 41.136(1) (D) (D) 41.137 Contract Offer No. 137 – Special Access Bundle Service Offer 41.138(1) (D) 41.139(1) (D) 41.140(1) (1) (D) 41.141 (D)

(1) (D) 41.142 (D) (D) 41.143(1) (D) 41.144(1) (D) 41.145(1) (D) 41.146 Contract Offer No. 146 – ReliaNet Service Offer 41-1296 41.147(1) (D) (D)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 48th Revised Page 31.12 Cancels 47th Revised Page 31.12

ACCESS SERVICE TABLE OF CONTENTS Page 41. Pricing Flexibility Contract Offerings (Cont’d) 41.148 Contract Offer No. 148 – Special Access Bundle Service Offer 41-1308 41.149(1) 41.150(1) 41.151 Contract Offer No. 151 – Access Advantage Plus Transport Service – One Year Term 41-1334 41.152 Contract Offer No. 152 – Access Advantage Plus Transport Service – Two Year Term 41-1341 41.153 Contract Offer No. 153 – Access Advantage Plus Transport Service – Three Year Term 41-1348 41.154 Contract Offer No. 154 – DS1 and DS3 Service Offer 41-1355 41.155 Contract Offer No. 155 – Special Access Service Offer 41-1369 41.156 Contract Offer No. 156 – DS3 Extension Bundle Service Offer 41-1378 41.157 Contract Offer No. 157 – Special Access Service Offer 41-1385 41.158 Contract Offer No. 158 – DS3 Service Offer 41-1401 41.159 Contract Offer No. 159 – Self-Healing Transport Network (STN) Volume Option 6 Service Offer 41-1407 41.160 Contract Offer No. 160 – Access Service Offer 41-1414 41.161 Contract Offer No. 161 – DS3 IOF Transport Bundle Service Offer 41-1441 41.162 Contract Offer No. 162 – Access Service Offer 41-1448 41.163 Contract Offer No. 163 – Access Service Offer 41-1458 41.164 Contract Offer No. 164 – Special Access Wireless DS1 Bundle Service Offer 41-1472 41.165 Contract Offering No. 165 – Access Advantage Plus Transport Service Extension 41-1487 41.166 Contract Offer No. 166 – ReliaNet Service Offer 41-1492 41.167 Contract Offering No. 167 – Access Advantage Plus Transport Service Extension 41-1498 41.168 Contract Offer No. 168 – Self Healing Transport Network (STN) Volume Option 3 Service Offer 41-1503 41.169 Contract Offer No. 169 – Self Healing Transport Network (STN) Volume Option 3 Service Offer 41-1509 41.170 Contract Offer No. 170 – Access Service Offer 41-1515 41.171 Contract Offer No. 171 - Subtending DS1/DS3 Service Offer 41-1543 41.172 Contract Offer No. 172 DS1 and DS3 Service Offer 41-1552 41.173 Contract Offer No. 173 – MegaLink Custom Service Offer 41-1565 41.174 Contract Offer No. 174 – ReliaNet Service Offer 41-1573 41.175 Contract Offer No. 175 – Special Access Wireless DS1 and DS3 Service Offer 41-1580 41.176 Contract Offer No. 176 – Special Access Wireless DS1 and DS3 Service Offer 41-1589 41.177 Contract Offer No. 177 – Access Service Offer 41-1595 41.178 Contract Offer No. 178 – Access Service Offer 41-1611 41.179 Contract Offer No. 179 – DS1/DS3 Service Offer 41-1637 41.180 Contract Offer No. 180 – DS1/DS3 Service Offer 41-1642 41.181 Contract Offer No. 181 – DS1 Service Offer 41-1656 41.182 Reserved for Future Use 41-1660 41.183 Contract Offer No. 183 41-1668 41.184 Contract Offer No. 184 – DS1/DS3 Special Access Offer 41-1683 41.185 Reserved for Future Use 41-1696 41.186 Contract Offer No. 186 – Special Access Wireless DS1 Offer 41-1720 41.187 Contract Offer No. 187 – Access Service Offer 41-1733 41.188 Contract Offer No. 188 – DS1 and DS3 Access Offer 41-1748 41.189 Contract Offer No. 189 – Access Service Offer 41-1756 41.190 Reserved for Future Use 41-1774 41.191 Contract Offer No. 191 – Access Service Offer 41-1796 41.192 Contract Offer No. 192 – Access Service Offer 41-1819 41.193 Contract Offer No. 193 – Access Service Offer 41-1855 (N)

Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3421 )

Issued: January 28, 2016 Effective: January 29, 2016

Four AT&T Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 31.13 Cancels 1st Revised Page 31.13

ACCESS SERVICE

TABLE OF CONTENTS

Page No. 42. Promotional Offerings 42-1 (M) 42.1 General Description 42-2 (M) 42.2 Term, Conditions, Rates and Charges 42-2 (M)

43.(1)

44. True IP To PSTN (TIPToP) Service 44-1

45.(1)

(1)Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

Material appearing on this page previously appeared on Table of Contents 45th Revised Page 31.12

(This page filed under Transmittal No. 3418 )

Issued: November 25, 2015 Effective: November 26, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 32 Cancels 9th Revised Page 32

ACCESS SERVICE

CONCURRING CARRIERS

NO CONCURRING CARRIERS

CONNECTING CARRIERS

NO CONNECTING CARRIERS

OTHER PARTICIPATING CARRIERS

NO OTHER PARTICIPATING CARRIERS

SERVICE MARKS

(D)

SecureNetsm

ReliaNetsm

REGISTERED SERVICE MARKS

MegaLinkR Custom Service

MicroLink IR Service

MicroLink IIR Service

TeleBranchR

OTHER COMPANIES REGISTERED SERVICE MARKS

DISC*SR (DISC*S is a registered trademark of Reliance Comm/Tec)

TITANR (TITAN is a registered trademark of Tellabs, Inc.)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 33 Cancels 3rd Revised Page 33

ACCESS SERVICE

EXPLANATION OF SYMBOLS

(C) - To signify changed regulation (D) - To signify discontinued rate or regulation (I) - To signify increase (M) - To signify matter relocated without change (N) - To signify new rate or regulation (R) - To signify reduction (S) - To signify reissued matter (T) - To signify a change in text but no change in rate or regulation (Z) - To signify a correction

EXPLANATION OF ABBREVIATIONS

ABS - Alternate Billing Service ac - alternating current ACNA - Access Carrier Name Abbreviation (D) AMA - Automatic Message Accounting AML - Actual Measured Loss ANI - Automatic Number Identification AP - Program Audio AT&T - American Telephone and Telegraph Company (D) BAN - Billing Account Number BD - Business Day BHMC - Busy Hour Minutes of Capacity (D) BNS - Billed Number Screening BSA - Basic Serving Arrangement BSA-A - Circuit Switched - Line Side Basic Serving Arrangement BSA-B - Circuit Switched - Trunk Side Alternative B Basic Serving Arrangement BSA-C - Circuit Switched - Trunk Side Alternative C Basic Serving Arrangement BSA-D - Circuit Switched - Trunk Side Alternative D Basic Serving Arrangement BSE - Basic Service Element

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 34 Cancels 10th Revised Page 34

ACCESS SERVICE

EXPLANATION OF ABBREVIATIONS (Cont'd)

CAROT - Centralized Automatic Reporting on Trunks

CCNA - Customer Carrier Name Abbreviation CCS - Common Channel Signaling CFA - Connecting Facility Assignment CI - Channel Interface CKR - Circuit Identification CM - Channel Mileage CO - Central Office COCTX - Central Office Centrex Cont'd - Continued CPE - Customer Provided Equipment

CSPC - Customer Signaling Point Code CT - Channel Termination Ctx - Centrex DA - Directory Assistance dB - decibel dBrnC - Decibel Reference Noise C-Message Weighting dBrnCO - Decibel Reference Noise C-Message Weighted 0 dBv - Decibel(s) Relative to 1 Volt (Reference) dBv1 - Decibel(s) Relating to 1 Volt (Reference) dc - direct current DCS - Digital Cross-Connect Systems DDN - Direct Drop Node DNAL - Dedicated Network Access Link (N) DOS - Designated Operator Services DOV - Data Over Voice

DTL - Digital Transmission Link ECCS - Economical Hundred Call Seconds ECSPC - Exchange Company Signaling Point Code EDD - Envelope Delay Distortion ELEPL - Equal Level Echo Path Loss EML - Expected Measured Loss EPL - Echo Path Loss ERL - Echo Return Loss ESS - Electronic Switching System ESSX - Electronic Switching System Exchange f - frequency FID - Field Identifier F.C.C. - Federal Communications Commission

FX - Foreign Exchange

(This page filed under Transmittal No. 2846 )

Issued: September 28, 2000 Effective: September 29, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 35 Cancels 8th Revised Page 35

ACCESS SERVICE

EXPLANATION OF ABBREVIATIONS (Cont'd)

HC - High Capacity Hz - Hertz IAD - Improved Attenuation Distortion IAM - Initial Address Message IC - Interstate Customer ICB - Individual Case Basis ICL - Inserted Connection Loss IEDD - Improved Envelope Delay Distortion IP - Internet Protocol ISBO - Interim Split Billing Option kbps - kilobits per second kHz - kilohertz LAN - Local Area Network LATA - Local Access and Transport Area LIDB - Line Information Data Base LT - Link Type Ma - milliamperes Mbps - Megabits per second MECAB - Multiple Exchange Carrier Access Billing MECOD - Multiple Exchange Carrier Ordering and Design MHz - Megahertz MRC - Monthly Recurring Charge MTS - Message Telecommunications Service(s) MTSO - Mobile Telephone Switching Office MUX - Multiplexer NAP - Network Access Point NB - Narrowband NCS - National Communications System (D) NPA - Numbering Plan Area NRC - Nonrecurring Charge NRS - Network Reconfiguration Service NSEP - National Security Emergency Prepardness (D) NTS - Non-Traffic Sensitive NXX - Three-Digit Central Office Code OLNS - Originating Line Number Screening OPC - Originating Point Code OPP - Optional Payment Plan OSS - Operator Service System OTPL - Zero Transmission Level Point

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 36 Cancels 7th Revised Page 36

ACCESS SERVICE

EXPLANATION OF ABBREVIATIONS (Cont'd)

PBX - Private Branch Exchange PCM - Pulse Code Modulation PDR - Percent Direct Routed PI - Priority Installation PIN - Personal Identification Number PNL - Private Network Link PMA - Primary Market Area PLR - Private Line Ringdown POT - Point of Termination PR - Priority Restoration

QoS - Quality of Service rms - root-mean-square RSM - Remote Switching Modules RSS - Remote Switching Systems SCP - Service Control Point SL - Signaling Link SLC - Signaling Link Code SONET - Synchronous Optical Network SP - Signaling Point SRL - Singing Return Loss SSN - Switched Service Network SS7 - Signaling System 7 STP - Signaling Transfer Point SWC - Serving Wire Center TES - Telephone Exchange Service(s) TLP - Transmission Level Point TP - Technical Publication TPP - Term Pricing Plan TRIS - Telecommunications Relay Interconnection Service TRS - Telecommunications Relay Service TSP - Telecommunications Service Priority TSPS - Traffic Service Position System TV - Television

USOC - Uniform Service Order Code

VCC - Virtual Channel Connection VG - Voice Grade V & H - Vertical & Horizontal VPC - Virtual Path Connection (D) WAL - WATS Access Line WALE - WATS Access Line Extension WATS - Wide Area Telecommunications Service(s) (D)

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 37 Cancels 7th Revised Page 37

ACCESS SERVICE

REFERENCE TO OTHER TARIFFS

Whenever reference is made in this tariff to other tariffs of the Telephone Company, the reference is to the tariffs in force as of the effective date of this tariff, and to amendments thereto and successive issues thereof.

REFERENCE TO PUBLICATIONS

The following publications are referenced in this tariff and, unless otherwise noted may be obtained from:

Bell Communications Research, Information Operations Center,

(This page filed under Transmittal No. 3113 )

Issued: January 17, 2006 Effective: January 18, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 38 Cancels 6th Revised Page 38

ACCESS SERVICE REFERENCE TO PUBLICATIONS (Cont'd)

TR-INS-000342 Issued: February, 1991 Available: March, 1991

(D) (D)

TR-NPL-000175 Issued: July, 1985 Available: August, 1985 TR-NPL-000258 Issued: October, 1985 Available: October, 1985

TR-NPL-000336 Issued: October, 1987 Available: November, 1987 TR-NPL-000337 Issued: July, 1987 Available: August, 1987 TR-NPL-000338 Issued: December, 1986 Available: January, 1987 TR-NPL-000339 Issued: October, 1987 Available: November, 1987 TR-NPL-000340 Issued: October, 1987 Available: November, 1987 TR-NPL-000341 Issued: February, 1993 Available: March, 1993 TR-NWT-000246 Issued: December, 1992 Available: December, 1992 TR-NWT-000334 Issued: March, 1993 Available: May, 1993 TR-NWT-001203 Issued: December, 1992 Available: December, 1992 TR-NWT-001357 Issued: September, 1993 Available: September, 1993

(This page filed under Transmittal No. 2818)

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 39 Cancels 3rd Revised Page 39

ACCESS SERVICES REFERE NCE TO PUBLICATIONS (Cont'd)

TR-NWT-000954 Issued: November, 1992 Avail abl e: November, 1992 (T) TR-TSV-000962 Issued: Sept1mber, 1990 Avail abl e: October, 1990

TR-TSY-000301 Issued: December, 1988 Avail abl e: December, 1988 TR-TSY-000335 Issued: May, 1993 Avai l abl e: July, 1993 TR-TSY-000366 Issued: March, 1988 Avai l abl e: Apri l , 1988 FR-NWT-000440 Issued: May, 1993 Avai l abl e: May, 1993 (T) TR-TSY-000444 Issued: November, 1990 Avai l abl e: November, 1990 TR-TSY-000448 Issued: December, 1988 Avai l abl e: December, 1988 TR-TSY-000499 Issued: December, 1989 Avail abl e: December, 1989 TR-TSY-000885 Issued: December, 1989 Avail abl e: December, 1989 TR-TSY-000938 Issued: August, 1990 Avai l abl e: August, 1990

Tariff revi sions 011 thi s page are filed under authority of Speci al Permission No. 93-701 of the F.C.C.

(This page filed under Transmittal No. 2296)

Issued: September 8, 1993 Effective: October 23, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 19th Revised Page 39.1 Cancels 18th Revised Page 39.1

ACCESS SERVICES

REFERENCE TO PUBLICATIONS (Cont'd)

Exchange Message Interface (EMI), Document No. SR-STS-000320 Available: August, 1990

LATA Switching System Generic Requirements (LSSGR), Document No. TR-NWT-0001692 Available: March, 1991

(N)

(N)

(This page filed under Transmittal No. 2843 )

Issued: August 25, 2000 Effective: August 26, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 40 Cancels 12th Revised Page 40

ACCESS SERVICES

REFERENCE TO PUBLICATIONS (Cont'd)

Bell System for Technical Education, Room F214, 6200 Route 53, Lisle, IL 60532: PUB SR-EOP-000191, Trunk Traffic Engineering Concepts and Applications Issued: December, 1989 Available: January, 1990

Publishers Data Center, P. O. Box C-738, Pratt Street Station, Brooklyn, NY 11205:

FR-NWT-000064 - LATA Switching Systems Generic Requirements Issued: 1991 Edition Available: July, 1991

FSD 20-20-0100 - LATA Switching Systems Generic Requirements, Issue 1 Issued: March, 1987 Available: March, 1987

Southwestern Bell Telephone Company, Manager-Information Release & Services 530 McCullough, Room 2-E-02, San Antonio, Texas 78215: TP 76500 Issued: January, 1987 Available: March, 1987 TP 76550 Issued: April, 1997 Available: April, 1997 TP 76620 Digital Data Over Voice (DDOV) Network Interface Specification Issued: January, 1993Available:June, 1993

TP 76625 Issued: June, 1990 Available: July, 1990 TP 76635 Issued: June, 1990 Available: September, 1990 TP 76638 Issued: October, 1991 Available: October, 1991 TP 76640 Issued: September, 1991 Available: September, 1991

(D) (D) TP 76644 Business Video Interface Specifications Issued: November, 1991 Available: January 1, 1992

(D)

(D)

(This page filed under Transmittal No. 2818)

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 14th Revised Page 41 Cancels 13th Revised Page 41

ACCESS SERVICES REFERENCE TO PUBLICATIONS (Cont'd)

(1) TP 76800, MicroLink II X.25/X.75 Reference (C) Issued: January, 1990 Available: February, 1990 PUB 76810, MicroLink II Asynchronous Reference Issued: January, 1990 Available: January, 1990 PUB 76820, MicroLink II Numbering Plan Guide Issued: January, 1990 Available: January, 1990 TP 76839, SONET Transmission Requirements Issued: January, 1996 Available: January, 1996 The following technical publications are referenced in this tariff and may be obtained from Assistant Manager - Technical Information Release Management (TIRM) at (847) 248-4328, Services, Inc., Room 3A09F, 2000 W. Ameritech Center Drive, Hoffman Estates, 60196-1025:

AM TR-NIS-000111 Issued: August, 1999 Available: August, 1999 SBC-TP-76412-000 Issued: March, 2003 Available: March, 2003 TP-76200MP Issued: October, 2003 Available: October,

2003 Federal Communications Commission's Commercial Contractor:

National Exchange Carrier Association (NECA), Inc. Tariff F.C.C. No. 4

Government Printing Office, Superintendent of Documents, 941 N. Capitol, NE, , D.C. 20401:

Telecommunications Service Priority (TSP) System for National Security Emergency Preparedness (NSEP) Service Vendor Handbook, Document No. NCSH 3-1-2 Issued: July 9, 1990 Available: August, 1990 Telecommunications Service Priority (TSP) System for National Security Emergency Preparedness (NSEP) Service User Manual, Document No. NCSM 3-1-1 Issued: July 9, 1990 Available: August, 1990 Southwestern Bell Telephone Company, Attn: Area Manager Common Systems Engineering, One Bell Center, Room 13-F-1, St. Louis, Missouri 63101

Expanded Interconnection Technical Publication for Collocation with Southwestern Bell Telephone Company Issue 2 Available: June, 1994 Technical Publication for Expanded Interconnection Issue 1 Available: September, 1994

(1) As of October 6, 2004, MicroLink II service utilizing the X.75 (N) protocol is obsolete and limited to existing installations, at existing locations, for existing customers. (N) (N)

(This page is filed under Transmittal No. 3008)

Issued: September 21, 2004 Effective: October 6, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 42 Cancels Original Page 42

ACCESS SERVICES

REFERENCE TO PUBLICATIONS (Cont'd)

American National Standard Institute, 11 West 42nd St., New York, N.Y. 10036 Telephone 212 642-4900, FAX 212 398-0023 or www.ansi.org (N)

ANSI T1.105-1991 "Digital Hierarchy-Optical Interface Rates and Formats Specification

(SONET)" Issued: January, 1991 Available: January, 1991

ANSI T1.102-1993 "Digital Hierarchy-Electrical Interfaces Issued: January, 1994 Available: January, 1994

ANSI T1.227-1995, Extension to Generic Network Model for Interfaces (N) between Operations Systems across Jurisdictional Boundaries to Support Fault Management Issued: October, 1995 Available: October, 1995

ANSI-T1.228-1995 (R1999)Services for Interfaces between Operations Systems across Jurisdictional Boundaries to Support Fault Management (Trouble Administration) Issued: September, 1999 Available: September, 1999 (N)

(This page filed under Transmittal No. 2843 )

Issued: August 25, 2000 Effective: August 26, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 43 Cancels Original Page 43

REFERENCE TO PUBLICATIONS (Cont'd)

The following technical publications are referenced in this tariff and may be obtained from Assistant Manager - Technical Information Release Management (TIRM) at (847) 248-4328, Ameritech Services, Inc., Room 3A09F, 2000 W. Ameritech Center Drive, Hoffman Estates, Illinois 60196-1025. Technical Reference:

AMTR NIS-000111 Issued: August, 1999 Available: August, 1999

The following publications are referenced in this tariff and, unless otherwise noted may be obtained from: (N)

Telcordia Technologies, Customer Service, Piscataway, N.J., 08854-4156

Technical Reference:

GR-3697-CORE Issued: March, 2003 Available: March, 2003 (N)

(This page filed under Transmittal No. 2932 )

Issued: March 11, 2003 Effective: March 26, 2003

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 44 Cancels 1st Revised Page 44

REFERENCE TO PUBLICATIONS (Cont'd)

The Technical Reference can be obtained from: http://www.att.com/gen/public-affairs?pid=3181 (T)

or The Telecordia Technologies Research Publication(s) can be obtained from 8 Corporate Place Piscataway, New Jersey 08854

AM TR-NIS-000100, Ameritech LAN Interconnect Service-Token Ring Interface Specifications Available: March, 2003

AM TR-NIS-000104, Ameritech LAN Interconnect Service –CSMA /CD Interface Specifications Available: March, 2003

AM-TR-NIS-000111, Ameritech OC-3, OC-12, and OC-48 Service Interface Specifications Available: March, 2003 AM-TR-TMO-000101, Ameritech Digital Service Transmission Parameters Available: March, 2003

AM-TR-TMO-000080, Ameritech Service’s Network Channel and Network Channel Interface Codes Available: March, 2003 AM-TR-NIS-000096, Ameritech Technical Interfaces Specifications Available: March, 2003 TM AM-TR-NIS-000107, (ESCON ) Available: March, 2003 TM IBM SA22-7202-XX, IBM Documentation (ESCON ) IBM SA22-0394-XX Available: March, 2003 TM TM ANSI X3.T9.3, Fibre Channel (also includes FICON and ISC ) ANSI/IEEE 802.3, Fast Ethernet Available: March, 2003 IEEE 802.3x and z, Gigabit Ethernet IEEE 802.3ae IEEE 802.1d Available: March, 2003 ANSI/SMPTE 259M, D1 Video Available: March, 2003

(This page filed under Transmittal No. 3284 )

Effective: September 2, 2009

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 62 TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

On October 12, 2007, SWBT filed Transmittal No. 3240 proposing to introduce the Virtual Concatenation (VCAT) functionality to the Expanded Interconnection Services in F.C.C. No. 73, Section 25. Transmittal No. 3240 became effective on October 27, 2007.

This supplement is filed pursuant to Competitive Pricing Division, Wireline Competition Bureau’s Order (Order) DA 07-4370, In the Matter of Ameritech Revisions to Tariff F.C.C. No. 2, and Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No. 73, released October 23, 2007.

The aforementioned Order suspends the proposed revisions in Transmittal No. 3240 made in SWBT’s Tariff F.C.C. No.73, with respect to the rates, terms and conditions affecting Expanded Interconnection Services, for one day from the October 27, 2007 effective date, and an investigation of the referenced transmittal is instituted and incorporated within CC Docket Nos. 93-162, 94-97, and 96-185.

Listed are the affected tariff pages: Page Revision No.

25-30.13 14th 29-9 4th 29-9.1 2nd 29-10 7th 29-15 5th 29-16 1st 29-25.1 10th 29-25.2 Original 29-26 6th 30-6 16th 30-6.1 Original 30-7 13th 30-8 9th 30-14.1 Original 30-15 21st 40-2 5th 40-3 2nd 40-3.1 Original 40-4 1st 40-5 1st 40-6 2nd 40-11 1st 40-24 3rd 40-27 2nd 40-30 2nd 40-33 3rd 40-35 2nd

(This page filed under Transmittal No. 3245) ______Issued: October 30, 2007

Four AT&T Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 61 TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

On July 28, 2006, SWBT filed Transmittal No. 3152 proposing to enhance DecaMAN® service by introducing a DecaMAN® Cross Connect to the Expanded Interconnection Services in F.C.C. No. 73, Section 25. Transmittal No. 3152 became effective on August 12, 2006.

This supplement is filed pursuant to Competitive Pricing Division, Wireline Competition Bureau’s Order (Order)DA 06-1616, In the Matter of Ameritech Revisions to Tariff F.C.C. No. 2 and Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No. 73, released August 11, 2006.

The aforementioned Order suspends the proposed revisions in Transmittal No. 3152 made in SWBT’s Tariff F.C.C. No.73, with respect to the rates, terms and conditions affecting Expanded Interconnection Services, for one day from the August 12, 2006 effective date, and an investigation of the referenced transmittal is instituted and incorporated within CC Docket Nos. 93-162, 94-97, and 96-185.

Listed are the affected tariff pages: Page Revision No.

25-3 16th 25-30.13 12th 33-2 3rd 33-3 3rd 33-4 3rd 33-5 3rd 33-6 1st 33-23 1st 33-24 1st 33-25 1st 33-26 1st

(This page filed under Transmittal No. 3154) ______Issued: August 14, 2006

Four AT&T Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 60 TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

On May 11, 2006, SWBT issued Transmittal No. 3130 proposing to enhance WaveMANsm service by introducing a WaveMANsm OC-48 and OC-192 Cross Connect to the Expanded Interconnection Service in F.C.C. No. 73, Section 25. Transmittal No. 3130 became effective on May 26, 2006.

This supplement is filed pursuant to Competitive Pricing Division, Wireline Competition Bureau’s Order (Order)DA 06-1083, In the Matter of Ameritech Revisions to Tariff F.C.C. No. 2 and Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No. 73, released May 25, 2006.

The aforementioned Order suspends the proposed revisions in Transmittal No. 3130 made in SWBT’s Tariff F.C.C. No.73, with respect to the rates, terms and conditions affecting Expanded Interconnection Services, for one day from the May 26, 2006 effective date and initiates an investigation.

Listed are the affected tariff pages: Page Revision No.

25-3 15th 45-2 1st 45-6.1 Original 45-23 1st 45-25 1st

(This page filed under Transmittal No. 3137) ______Issued: May 31, 2006 Four AT&T Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 59 TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

On April 19, 2005, SWBT issued Transmittal No. 3057 proposing to enhance OPT-E- MANsm service by introducing an OPT-E-MANsm 1 Gbps Cross Connect to the Expanded Interconnection Service in F.C.C. No. 73, Section 25. Transmittal No. 3057 is scheduled to become effective on May 4, 2005.

This supplement is filed pursuant to Competitive Pricing Division, Wireline Competition Bureau’s Order (Order)DA 05-1259, In the Matter of Ameritech Revisions to Tariff F.C.C. No.2 and Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No. 73, released April 29, 2005.

The aforementioned Order suspends the proposed revisions in Transmittal No. 3057 made in SWBT’s Tariff F.C.C. No.73, with respect to the rates, terms and conditions affecting Expanded Interconnection Services, for one day from the May 4,2005 effective date and initiates an investigation.

Listed are the affected tariff pages: Page Revision No.

23-3 14th 25-30.13 11th

(This page filed under Transmittal No. 3061) ______Issued: May 5, 2005 One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 58 Cancels Supplement No. 57 TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

On January 3, 2005 Southwestern Bell Telephone Company (SWBT) issued Supplement No. 57 in Transmittal No. 3026 pursuant to Wireline Competition Bureau’s Order DA 04-4048, release date December 27, 2004. The Order suspended the effective date of SWBT’s Transmittal No. 3022 for 5 months and instituted an investigation. On January 21, 2005, under the authority of Special Permission No. 05-004 of the F.C.C., SWBT withdrew Transmittal No. 3022 without it becoming effective.

(This page filed under Transmittal No. 3032) ______Issued: January 21, 2005 One SBC Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 56 TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

This supplement is filed pursuant to the Pricing Policy Division, Wireline Competition Bureau’s Order DA 03-4083, In the Matter of Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No. 73, released December 24, 2003.

On December 11, 2003, Southwestern Bell Telephone Company (SWBT) filed Transmittal No. 2975 to revise Tariff F.C.C. No. 73 Access Services, to become effective December 26, 2003. SWBT was proposing, among other things, to add 1 Gigabit Ethernet to its Interconnection Services and a new provision which provides that all optical interconnections within a central office will support only single mode fiber termination.

Pursuant to the aforementioned Order, the revisions to SWBT’s Tariff F.C.C. 73 Expanded Interconnection Service offerings filed under Transmittal No. 2975 are suspended for one day from the December 26, 2004 effective date. The issues regarding rate levels, rate structures and terms and conditions of collocation services will be subject to investigation.

Page Revision No.

25-3 13th 25-30.13 10th

(This page filed under Transmittal No. 2981) ______Issued: January 5, 2004 One Bell Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 55 Cancels Supplement No. 51 TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

On August 20, 2002 Southwestern Bell Telephone Company (SWBT) issued Supplement No. 51 in Transmittal No. 2910 pursuant the Pricing Policy Division, Wireline Competition Bureau's Order DA 02-2039, released August 16, 2002. Order DA 02-2039 suspended the effective date of SWBT’s Transmittal No. 2906 for 5 months and instituted an investigation.

On January 13, 2003, under authority of Special Permission No. 03-002, SWBT withdrew Transmittal No. 2906 without it becoming effective.

(This page filed under Transmittal No. 2926) ______Issued: January 13, 2003

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 54 TARIFF F.C.C. NO. 73 Cancels Supplement No. 53 Page1of1

ACCESS SERVICE ACCESS SERVICE On November 4, 2002 Southwestern Bell Telephone Company (SWBT) issued Supplement No. 53 in Transmittal No. 2917, pursuant to the Pricing Policy Division, Wireline Competition Bureau's Order on Reconsideration, DA 02-2898, released October 29, 2002. Order DA 02-2898 terminated the investigations, suspensions and accounting orders imposed in Order DA 02-2472, released date September 30, 2002.

The proposed effective date for the rate decreases listed in Supplement 53 was incorrectly typed as October 2, 2001, the correct year is 2002. The purpose of this Supplement, is to cancel Supplement No. 53 and issue Supplement No. 54 with the correct effective date of October 2, 2002. The proposed rate decreases listed in the following tariff page are effective as of October 2, 2002.

Page Revision No.

4-13 13th 4-14 9th

(This page filed under Transmittal No. 2918) ______Issued: November 5, 2002

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 50 TARIFF F.C.C. NO. 1 Page 1 of 1

ACCESS SERVICE

Under authority of Special Permission No. 02-050 of the Federal Communications Commission, the effective date of the tariff material contained in the following transmittal number has been deferred to April 10, 2002. The deferral will provide the Commission with additional time to review.

Transmittal No. 2883

Page Revision No.

38-1 1st 38-2 3rd 38-3 2nd 38-5 1st 38-6 1st 38-7 1st 38-8 2nd 38-9 2nd 38-11 2nd 38-12 2nd 38-13 2nd 38-13.1 Original 38-14 2nd 38-14.1 Original 38-15 2nd 38-15.1 Original 38-16 1st 38-17 1st 38-18 2nd 38-19 1st 38-20 2nd 38-21 1st 38-21.1 Original 38-22 1st 28-23 Original

(This page filed under Transmittal No. 2890) ______Issued: March 29, 2002

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 49 TARIFF F.C.C. NO. 73 Page1of1 ACCESS SERVICE This supplement is filed pursuant the Competitive Pricing Division, Common Carrier Bureau's Order, In the Matter of Ameritech Revisions to Tariff F.C.C No. 2, Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No. 73 , CC Docket Nos. 93-162, 94-97, 96-185, Transmittal 1285 and Transmittal 2874 , released January 10, 2002. With respect to the rates, terms and conditions affecting Expanded Interconnection Services. The aforementioned Orders suspends the revisions filed under SWBT's Transmittal No. 2874 for one day from the January 11,2002 effective date.

Page Revision No.

25-3 10th 25-30.13 7th

(This page filed under Transmittal No. 2876) ______Issued: January 15, 2002 One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 48 to TARIFF F.C.C. NO. 73 Page 1 of 5

ACCESS SERVICE

This supplement is filed pursuant to the Bureau’s Memorandum Opinion and Order (MO&O), In the Matter of 2000 Annual Access Tariff Filings, CC Docket No. 00-122, released June 30, 2000. The aforementioned (MO&O) advances one day to June 30, 2000 and then suspends for one day until July 1, 2000, certain rate revisions filed under SWBT’s Transmittal No. 2831. The rate revisions, listed below, are also subject to an investigation under CC Docket No. 00-122.

Page Revision No. Rate Element

3-20 41st All Rate Revisions on Page 4-8 2nd All Rate Revisions on Page 4-9 3rd All Rate Revisions on Page 4-10 23rd All Rate Revisions on Page 4-11 23rd All Rate Revisions on Page 4-12 22nd All Rate Revisions on Page 4-13 3rd Federal Universal Service Fee - Arkansas - Residential - Business - PRI ISDN - Centrex CO and CO-Like - Kansas - Residential - Business - PRI ISDN - Centrex CO and CO-Like 4-14 Original Federal Universal Service Fee - Missouri - Residential - Business - PRI ISDN - Centrex CO and CO-Like - Oklahoma - Residential - Business - PRI ISDN - Centrex CO and CO-Like - Texas - Residential - Business - PRI ISDN - Centrex CO and CO-Like 6-179 43rd All Rate Revisions on Page 6-179.1 17th All Rate Revisions on Page 6-179.3 15th All Rate Revisions on Page 6-179.5 8th All Rate Revisions on Page 6-179.6 7th All Rate Revisions on Page 6-179.7 13th All Rate Revisions on Page 6-179.9 8th All Rate Revisions on Page 6-179.11 16th All Rate Revisions on Page 6-184.1 6th All Rate Revisions on Page 6-184.2 5th All Rate Revisions on Page 6-185 36th All Rate Revisions on Page 6-208 11th All Rate Revisions on Page 6-209 16th All Rate Revisions on Page 7-130 9th All Rate Revisions on Page 7-138 16th All Rate Revisions on Page 7-139.1 4th All Rate Revisions on Page 7-152 15th All Rate Revisions on Page (This page filed under Transmittal No. 2833) ______Issued: July 5, 2000

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 48 to TARIFF F.C.C. NO. 73 Page 2 of 5

ACCESS SERVICE

This supplement is filed pursuant to the Bureau’s Memorandum Opinion and Order (MO&O), In the Matter of 2000 Annual Access Tariff Filings, CC Docket No. 00-122, released June 30, 2000. The aforementioned (MO&O) advances one day to June 30, 2000 and then suspends for one day until July 1, 2000, certain rate revisions filed under SWBT’s Transmittal No. 2831. The rate revisions, listed below, are also subject to an investigation under CC Docket No. 00-122.

Page Revision No. Rate Element

7-153 14th All Rate Revisions on Page 7-185 18th All Rate Revisions on Page 7-186 10th All Rate Revisions on Page 7-189.6 7th All Rate Revisions on Page 7-209.4.111 Original All Rate Revisions on Page 7-209.4.112 Original All Rate Revisions on Page 7-209.4.113 Original All Rate Revisions on Page 7-209.4.114 Original All Rate Revisions on Page 7-209.4.115 Original All Rate Revisions on Page 7-209.4.116 Original All Rate Revisions on Page 7-209.4.117 Original All Rate Revisions on Page 7-209.4.118 Original All Rate Revisions on Page 7-209.4.119 Original All Rate Revisions on Page 7-209.4.120 Original All Rate Revisions on Page 7-209.4.121 Original All Rate Revisions on Page 7-209.4.122 Original All Rate Revisions on Page 7-209.4.123 Original All Rate Revisions on Page 7-209.4.124 Original All Rate Revisions on Page 7-209.4.125 Original All Rate Revisions on Page 7-209.4.126 Original All Rate Revisions on Page 7-209.4.127 Original All Rate Revisions on Page 7-209.4.128 Original All Rate Revisions on Page 7-209.4.129 Original All Rate Revisions on Page 7-209.4.130 Original All Rate Revisions on Page 7-209.4.131 Original All Rate Revisions on Page 7-209.4.132 Original All Rate Revisions on Page 7-209.4.133 Original All Rate Revisions on Page 7-209.4.134 Original All Rate Revisions on Page 7-209.4.135 Original All Rate Revisions on Page 7-209.4.136 Original All Rate Revisions on Page 7-209.179 Original All Rate Revisions on Page 7-209.180 Original All Rate Revisions on Page 7-209.181 Original All Rate Revisions on Page 7-209.182 Original All Rate Revisions on Page 7-209.183 Original All Rate Revisions on Page 7-209.184 Original All Rate Revisions on Page 7-209.185 Original All Rate Revisions on Page 7-209.186 Original All Rate Revisions on Page 7-209.187 Original All Rate Revisions on Page 7-209.188 Original All Rate Revisions on Page 7-209.189 Original All Rate Revisions on Page 7-209.190 Original All Rate Revisions on Page 7-209.191 Original All Rate Revisions on Page 7-209.192 Original All Rate Revisions on Page 7-209.193 Original All Rate Revisions on Page 9-22.1 8th All Rate Revisions on Page 9-22.2 14th All Rate Revisions on Page 16-20 7th All Rate Revisions on Page 20-42 20th All Rate Revisions on Page 20-42.1 3rd All Rate Revisions on Page (This page filed under Transmittal No. 2833) ______Issued: July 5, 2000

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 48 to TARIFF F.C.C. NO. 73 Page 3 of 5

ACCESS SERVICE

This supplement is filed pursuant to the Bureau’s Memorandum Opinion and Order (MO&O), In the Matter of 2000 Annual Access Tariff Filings, CC Docket No. 00-122, released June 30, 2000. The aforementioned (MO&O) advances one day to June 30, 2000 and then suspends for one day until July 1, 2000, certain rate revisions filed under SWBT’s Transmittal No. 2831. The rate revisions, listed below, are also subject to an investigation under CC Docket No. 00-122.

Page Revision No. Rate Element

20-43 8th All Rate Revisions on Page 20-44 17th All Rate Revisions on Page 20-45 12th All Rate Revisions on Page 20-46 14th All Rate Revisions on Page 20-47 6th All Rate Revisions on Page 20-47.1 10th All Rate Revisions on Page 20-47.2 9th All Rate Revisions on Page 20-47.3 8th All Rate Revisions on Page 20-47.4 7th All Rate Revisions on Page 20-47.5 10th All Rate Revisions on Page 20-47.6 6th All Rate Revisions on Page 20-47.7 12th All Rate Revisions on Page 20-47.8 12th All Rate Revisions on Page 20-47.9 10th All Rate Revisions on Page 20-47-10 7th All Rate Revisions on Page 20-47.11 10th All Rate Revisions on Page 20-47.12 6th All Rate Revisions on Page 20-47.13 13th All Rate Revisions on Page 20-47.14 14th All Rate Revisions on Page 20-47.15 13th All Rate Revisions on Page 20-47.16 12th All Rate Revisions on Page 20-47.17 16th All Rate Revisions on Page 20-47.18 6th All Rate Revisions on Page 20-47.19 6th All Rate Revisions on Page 20-47.20 6th All Rate Revisions on Page 20-47.28 5th All Rate Revisions on Page 20-47.29 5th All Rate Revisions on Page 20-47.30 5th All Rate Revisions on Page 20-47.31 7th All Rate Revisions on Page 20-47.32 8th All Rate Revisions on Page 20-675 Original All Rate Revisions on Page 20-676 Original All Rate Revisions on Page 20-677 Original All Rate Revisions on Page 20-678 Original All Rate Revisions on Page 20-679 Original All Rate Revisions on Page 20-680 Original All Rate Revisions on Page 20-681 Original All Rate Revisions on Page 20-682 Original All Rate Revisions on Page 20-683 Original All Rate Revisions on Page 20-684 Original All Rate Revisions on Page 20-685 Original All Rate Revisions on Page 20-686 Original All Rate Revisions on Page 20-687 Original All Rate Revisions on Page 20-688 Original All Rate Revisions on Page 20-689 Original All Rate Revisions on Page 20-690 Original All Rate Revisions on Page 20-691 Original All Rate Revisions on Page 20-692 Original All Rate Revisions on Page 20-693 Original All Rate Revisions on Page 20-694 Original All Rate Revisions on Page (This page filed under Transmittal No. 2833) ______Issued: July 5, 2000

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 48 to TARIFF F.C.C. NO. 73 Page 4 of 5

ACCESS SERVICE

This supplement is filed pursuant to the Bureau’s Memorandum Opinion and Order (MO&O), In the Matter of 2000 Annual Access Tariff Filings, CC Docket No. 00-122, released June 30, 2000. The aforementioned (MO&O) advances one day to June 30, 2000 and then suspends for one day until July 1, 2000, certain rate revisions filed under SWBT’s Transmittal No. 2831. The rate revisions, listed below, are also subject to an investigation under CC Docket No. 00-122.

Page Revision No. Rate Element

20-695 Original All Rate Revisions on Page 20-696 Original All Rate Revisions on Page 20-697 Original All Rate Revisions on Page 20-698 Original All Rate Revisions on Page 20-699 Original All Rate Revisions on Page 20-700 Original All Rate Revisions on Page 20-701 Original All Rate Revisions on Page 20-702 Original All Rate Revisions on Page 20-703 Original All Rate Revisions on Page 20-704 Original All Rate Revisions on Page 20-705 Original All Rate Revisions on Page 20-706 Original All Rate Revisions on Page 20-707 Original All Rate Revisions on Page 20-708 Original All Rate Revisions on Page 20-709 Original All Rate Revisions on Page 20-710 Original All Rate Revisions on Page 20-711 Original All Rate Revisions on Page 20-712 Original All Rate Revisions on Page 20-713 Original All Rate Revisions on Page 20-714 Original All Rate Revisions on Page 20-715 Original All Rate Revisions on Page 20-716 Original All Rate Revisions on Page 20-717 Original All Rate Revisions on Page 20-718 Original All Rate Revisions on Page 20-719 Original All Rate Revisions on Page 20-720 Original All Rate Revisions on Page 20-721 Original All Rate Revisions on Page 20-722 Original All Rate Revisions on Page 20-723 Original All Rate Revisions on Page 20-724 Original All Rate Revisions on Page 20-725 Original All Rate Revisions on Page 20-726 Original All Rate Revisions on Page 20-727 Original All Rate Revisions on Page 20-728 Original All Rate Revisions on Page 20-729 Original All Rate Revisions on Page 20-730 Original All Rate Revisions on Page 20-731 Original All Rate Revisions on Page 20-732 Original All Rate Revisions on Page 20-733 Original All Rate Revisions on Page 20-734 Original All Rate Revisions on Page 20-735 Original All Rate Revisions on Page 20-736 Original All Rate Revisions on Page 20-737 Original All Rate Revisions on Page 20-738 Original All Rate Revisions on Page 20-739 Original All Rate Revisions on Page 20-740 Original All Rate Revisions on Page 20-741 Original All Rate Revisions on Page 20-742 Original All Rate Revisions on Page 20-743 Original All Rate Revisions on Page 20-744 Original All Rate Revisions on Page (This page filed under Transmittal No. 2833) ______Issued: July 5, 2000

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 48 to TARIFF F.C.C. NO. 73 Page 5 of 5

ACCESS SERVICE

This supplement is filed pursuant to the Bureau’s Memorandum Opinion and Order (MO&O), In the Matter of 2000 Annual Access Tariff Filings, CC Docket No. 00-122, released June 30, 2000. The aforementioned (MO&O) advances one day to June 30, 2000 and then suspends for one day until July 1, 2000, certain rate revisions filed under SWBT’s Transmittal No. 2831. The rate revisions, listed below, are also subject to an investigation under CC Docket No. 00-122.

Page Revision No. Page Revision No. Page Revision No.

20-745 Original All Rate Revisions on Page 20-746 Original All Rate Revisions on Page 20-747 Original All Rate Revisions on Page 20-748 Original All Rate Revisions on Page 20-749 Original All Rate Revisions on Page 23-13 11th All Rate Revisions on Page 31-82 Original All Rate Revisions on Page 31-83 Original All Rate Revisions on Page 31-84 Original All Rate Revisions on Page 31-85 Original All Rate Revisions on Page 31-86 Original All Rate Revisions on Page 31-87 Original All Rate Revisions on Page 31-88 Original All Rate Revisions on Page 31-89 Original All Rate Revisions on Page 31-90 Original All Rate Revisions on Page 31-91 Original All Rate Revisions on Page 31-92 Original All Rate Revisions on Page 31-93 Original All Rate Revisions on Page 31-94 Original All Rate Revisions on Page 31-95 Original All Rate Revisions on Page 31-96 Original All Rate Revisions on Page 31-97 Original All Rate Revisions on Page 31-98 Original All Rate Revisions on Page

(This page filed under Transmittal No. 2833) ______Issued: July 5, 2000

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 46 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Pursuant to the Bureau’s Partial Suspension Order, In the Matter of Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No.73, Revisions to Tariff F.C.C. No. 128, and Revisions to Tariff F.C.C. No. 1, CC Docket No. 99-274, DA-99-1698, released August 24, 1999, the effective date of certain revisions filed under Transmittal No. 2773 are suspended for five months from August 27, 1999 to January 27, 2000. The suspended revisions are also subject to investigation under CC Docket No. 99-274. The following language, filed under Transmittal No. 2773 on Original Page 14.206.2, is suspended by this supplement:

In addition, the service offered under the ADSL-VDP are provided on a wholesale basis to carriers and non- carriers, and are priced on such basis. The ADSL-VDP is not offered at retail, and accordingly, the Telephone Companies do not believe that the rates therein are subject to the rate provisions of Section 251(c)(4) and 252(d)(3) of the Communications Act, 47 U.S.C. 251 (c)(4), 252(d)(3), and thus has priced them under that belief.

(This page filed under Transmittal No. 2778) ______Issued: August 31, 1999 One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 45 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Pursuant to the Bureau's Memorandum Opinion and Order, In the Matter of Long-Term Telephone Number Portability Tariff Filings of Ameritech Operating Companies, GTE System Telephone Companies, GTE Telephone Operating Companies, Pacific Bell and Southwestern Bell Telephone Company, CC Docket No. 99-35, released July 6, 1999, tariff revisions filed under Transmittal Nos. 2764 and 2765, as shown on the revised pages listed below, is suspended until July 7, 1999. These tariff revisions are also subject to investigation under CC Docket No. 99-35. Page Revision No.

34-2 12th 34-3 18th 34-5 18th 35-6 11th 34-13 19th 34-14 21st

(This page filed under Transmittal No. 2768) ______Issued: July 21, 1999

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 44 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Pursuant to the Bureau's Memorandum Opinion and Order, In the Matter of Long-Term Telephone Number Portability Tariff Filing of Pacific Bell and Southwestern Bell Telephone Company, CC Docket No. 99-35, released June 9, 1999, tariff revisions filed under Transmittal No. 2761, as shown on the revised page listed below, is suspended until August 31, 1999. These tariff revisions are also subject to investigation under CC Docket No. 99-35. Page Revision No.

34-14 19th

(This page filed under Transmittal No. 2762) ______Issued: June 14, 1999 One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 43 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Pursuant to the Bureau's Memorandum Opinion and Order, In the Matter of Long-Term Telephone Number Portability Tariff Filings of Ameritech, GSTC, GTOC, Pacific and Southwestern Bell, CC Docket No. 99-35, released January 29, 1999, tariff revisions filed under Transmittal No. 2745, as shown on the revised pages listed below, are advanced for one day to January 31, 1999 and then suspended for one day to February 1, 1999. These tariff revisions are also subject to an investigation. Page Revision No.

34-1 15th 34-2 10th 34-3 17th 34-4 10th 34-5 17th 34-6 9th 34-9 9th 34-9.1 Original 34-10 9th 34-11 17th 34-12 17th 34-13 17th 34-14 18th

(This page filed under Transmittal No. 2746) ______Issued: February 3, 1999

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 42 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Pursuant to the Bureau's Memorandum Opinion and Order, In the Matter of 1998 Annual Access Tariff Filings, Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No. 73, Transmittal No. 2719, released August 26, 1998 (DA 98- 1699), tariff revisions filed under Transmittal No. 2719, as shown on the revised pages listed below, are suspended for one day to August 29, 1998. The tariff revisions, on the revised pages listed below, are also subject to the investigation initiated in 1998 Annual Access Suspension Order and 1998 Annual Access Designation Order. Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

6-179 34th

(This page filed under Transmittal No. 2724)

Issued: September 1, 1998 One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 41 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Pursuant to the Bureau's Memorandum Opinion and Order, Order Designating Issues For Investigation and Order on Reconsideration, In the Matter of 1998 Annual Access Tariff Filings, Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No. 73, released July 29, 1998 (DA 98-1512),certain tariff revisions filed under Transmittal No. 2715, as shown on the revised pages listed below, are suspended for one day to August 3, 1998. The tariff revisions, on the revised pages listed below, are also subject to the investigation initiated in the 1998 Annual Access Suspension Order.

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

3-20 34th

(This page filed under Transmittal No. 2717)

Issued: July 31, 1998

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 40 to TARIFF F.C.C. NO. 73 Page 1 of 2

ACCESS SERVICE

Pursuant to the Bureau's Memorandum Opinion and Order, In the Matter of 1998 Annual Access Tariff Filings, released June 29, 1998 (DA 98-1294), tariff revisions filed under Transmittal Nos. 2705 and 2707, as shown on the revised pages listed below, are advanced for one day to June 30, 1998 and then suspended for one day to July 1, 1998. These tariff revisions are also subject to an investigation.

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

2-45.2 9th 6-173.1 2nd 19-194 Original 2-52.7 10th 6-173.2 2nd 19-195 Original 2-84 7th 6-179 28th 19-196 Original 2-119 3rd 6-179.1 15th 19-197 Original 3-20 30th 6-179.3 13th 19-198 Original 4-3 7th 6-179.7 12th 19-199 Original 4-10 13th 6-179.9 5th 19-200 Original 4-11 13th 6-179.11 5th 19-201 Original 4-12 12th 6-184.2 2nd 19-202 Original 4-13 2nd 6-185 27th 19-203 Original 5-8.3 5th 6-201 6th 19-204 Original 5-8.4 1st 6-208 9th 19-205 Original 5-9 7th 6-209 14th 20-42 18th 6-4 8th 7-89 11th 20-43 16th 6-6 10th 7-209.119 Original 20-44 15th 6-7 2nd 7-209.120 Original 20-45 10th 6-7.1 1st 7-209.121 Original 20-47.13 11th 6-7.2 Original 7-209.122 1st 20-47.14 12th 6-45.5 2nd 7-209.123 Original 20-47.15 11th 6-45.9 1st 7-209.124 Original 20-47.16 10th 6-50.1 3rd 7-209.125 Original 20-47.17 13th 6-126.1 2nd 7-209.126 Original 20-376 Original 6-126.2 1st 7-209.127 Original 20-377 Original 6-130.2 1st 7-209.128 Original 20-378 Original 6-139 4th 7-209.129 Original 20-379 Original 6-140.1 10th 7-209.130 Original 20-380 Original 6-140.2 10th 7-209.131 Original 20-381 Original 6-140.3 8th 7-209.132 Original 20-382 Original 6-149.2 1st 7-209.133 Original 20-383 Original 6-149.3 6th 9-2 2nd 20-384 Original 6-149.5 4th 9-4 2nd 20-385 Original 6-149.6 3rd 9-17.2 1st 20-386 Original 6-163 2nd 9-17.3 2nd 20-387 Original 6-163.1 1st 9-17.4 2nd 20-388 Original 6-163.2 4th 9-22 17th 20-389 Original 6-163.3 1st 9-22.2 11th 20-390 Original 6-163.4 2nd 13-38 1st 20-391 Original 6-164 2nd 16-20 3rd 20-392 Original 6-165 5th 18-37 3rd 20-393 Original 6-165.1 7th 19-191 Original 20-394 Original 6-170 6th 19-192 Original 20-395 Original 6-172 5th 19-193 Original 20-396 Original

(This page filed under Transmittal No. 2709)

Issued: July 2, 1998

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 40 to TARIFF F.C.C. NO. 73 Page 2 of 2

ACCESS SERVICE

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

20-397 Original 20-415 Original 20-433 Original 20-398 Original 20-416 Original 20-434 Original 20-399 Original 20-417 Original 20-435 Original 20-400 Original 20-418 Original 20-436 Original 20-401 Original 20-419 Original 20-437 Original 20-402 Original 20-420 Original 20-438 Original 20-403 Original 20-421 Original 20-439 Original 20-404 Original 20-422 Original 20-440 Original 20-405 Original 20-423 Original 20-441 Original 20-406 Original 20-424 Original 20-442 Original 20-407 Original 20-425 Original 20-443 Original 20-408 Original 20-426 Original 20-444 Original 20-409 Original 20-427 Original 20-445 Original 20-410 Original 20-428 Original 20-446 Original 20-411 Original 20-429 Original 20-447 Original 20-412 Original 20-430 Original 20-448 Original 20-413 Original 20-431 Original 20-449 Original 20-414 Original 20-432 Original 20-450 Original

Pursuant to the Bureau's Memorandum Opinion and Order, In the Matter of 1998 Annual Access Tariff Filngs, Southwestern Bell Revisions to Tariff F.C.C. No. 73 Transmittal No. 2708, Pacific Bell Revisions to Tariff F.C.C. No. 128 Transmittal No. 1991, Nevada Bell Revisions to Tariff F.C.C. No. 1 Transmittal No. 242, released June 30, 1998 (DA 98-1310), tariff revisons filed under Transmittal No. 2708, as shown on the revised pages listed below, are advanced for one day to June 30, 1998 and then suspended for one day to July 1, 1998. These tariff revisions are also subject to an investigation.

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

3-20 33rd 4-10 16th 4-11 16th 4-12 15th 6-179 31st 6-179.9 6th 6-179.11 6th 6-184.2 3rd 6-185 29th 9-22 18th 16-20 4th 20-399 1st

(This page filed under Transmittal No. 2709)

Issued: July 2, 1998

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 39 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In Compliance with the Bureau's Memorandum Opinion and Order, In the Matter of Number Portability Query Services, Southwestern Bell Tariff F.C.C. No. 73 for Provision of Long-Term Number Portability Database Related Services, released May 29, 1998 and under the authority of DA 98-1024, the tariff revisions filed under Transmittal Nos. 2638 and 2694, as shown on the revised pages listed below, are being suspended for one day from the effective date of June 1, 1998 to June 2, 1998.

Number of Revision Except as Page Indicated

34-3 15th* 34-5 15th 34-11 15th* 34-12 15th* 34-13 15th* 34-14 16th*

* Only that material symbolized Sy is being suspended for 1 day to June 2, 1998.

(This page filed under Transmittal No. 2703)

Issued: June 5, 1998

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 38 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Memorandum Opinion and Order in CCB/CPD 98-17, In the Matter of Petition of Southwestern Bell Telephone Company under Section 69.4(g)(1)(ii) of the Commission's Rules for Establishment of New Service Rate Elements, Southwestern Bell Tariff F.C.C. No. 73 for Provision of Long-Term Number Portability Database related services released March 18, 1998, and under authority of DA 98-530, the tariff revisions filed under Transmittal No. 2694, as shown on the revised pages listed below, are being suspended for one day from the effective date of March 19, 1998 to March 20, 1998.

Number of Revision Except as Page Indicated 34-1 11th 34-2 9th 34-3 11th 34-5 11th 34-11 11th 34-12 11th 34-13 11th 34-14 12th*

* Only that material symbolized Sy is being suspended for 1 day to March 20, 1998. (This page filed under Transmittal No. 2697) Issued: March 24, 1998 One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 37 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Memorandum Opinion and Order in CC Docket No. 97- 250, In the Matter of Tariffs Implementing Access Charge Reform, released January 23, 1998, and under authority of DA 98-125, the Access Reform tariff revisions filed under Transmittal Nos. 2684 and 2686, as shown on the revised pages listed below, are being suspended for one day from the effective date of January 24, 1998 to January 25, 1998.

Number of Revision Except as Page Indicated

3-10.2 1st 3-20 24th 3-20 25th 4-3 6th 4-4 4th 4-5.1 1st 4-8.1 1st 4-13 1st 6-149.5 3rd 6-149.6 2nd 6-150 4th 6-179 23rd 6-185 24th

(This page filed under Transmittal No. 2687)

Issued: January 29, 1998

One Bell Plaza, Dallas, Texas 75202 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 36 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Memorandum Opinion and Order in CCB/CPD 97-64, In the Matter of Petition of Southwestern Bell Telephone Company, Under Section 69.4(g)(1)(ii) of the Commissions Rules for Establishment of New Service Rate Elements, released December 30, 1997, and under authority of DA 97-2725, the effective date of the Long-Term Number Portability tariff revisions filed under Transmittal No. 2680 is being advanced to December 30, 1997 and suspended one day to December 31, 1997.

The Long-Term Number Portability revisions found on the following tariff pages are scheduled to become effective December 31, 1997.

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

31.6 11th 39.1 17th 2-97 10th 2-101 11th 2-109.1 9th 2-111.1 15th 2-114.1 10th 5-1 26th 5-17.12 8th 5-35 18th 34-1 8th 34-2 8th 34-3 8th 34-4 8th 34-5 8th 34-6 8th 34-7 8th 34-8 8th 34-9 8th 34-10 8th 34-11 8th 34-12 8th 34-13 8th 34-14 8th

(This page filed under Transmittal No. 2682)

Issued: December 31, 1997

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 35 to TARIFF F.C.C. NO. 73 Page 1 of 2

ACCESS SERVICE

In compliance with the Bureau's Memorandum Opinion and Order in CC Docket No. 97- 250, In the Matter of Tariffs Implementing Access Charge Reform, released December 30, 1997, and under authority of DA 97-2724, the effective date of the Access Reform tariff revisions filed under Transmittal Nos. 2678 and 2679 are being advanced to December 31, 1997 and suspended one day to January 1, 1998.

The Access Reform revisions found on the following tariff pages are scheduled to become effective January 1, 1998.

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

2-6 28th 4-8 1st 6-179.9 3rd 2-88 2nd 4-8.1 Original 6-179.9 4th 2-111.1 13th 4-9 2nd 6-179.11 2nd 2-114.1 10th 4-10 9th 6-184.2 2nd 2-115 11th 4-11 9th 6-185 22nd 3-1 1st 4-12 8th 6-185 23rd 3-4 1st 4-13 Original 7-209.104 Original 3-5 1st 6-2.1 1st 7-209.105 Original 3-6 4th 6-3 6th 7-209.106 Original 3-7 1st 6-4 7th 7-209.107 Original 3-8 2nd 6-6 9th 7-209.108 Original 3-9 2nd 6-126 2nd 7-209.109 Original 3-10 2nd 6-126.3 1st 7-209.110 Original 3-10.1 Original 6-127 3rd 7-209.111 Original 3-10.2 Original 6-128 2nd 7-209.112 Original 3-10.3 Original 6-141 5th 7-209.113 Original 3-11 1st 6-142 5th 7-209.114 Original 3-12 1st 6-142.1 Original 7-209.115 Original 3-13 1st 6-143 6th 7-209.116 Original 3-14 2nd 6-149.1 2nd 7-209.117 Original 3-15 1st 6-149.3 5th 7-209.118 Original 3-16 1st 6-149.4 3rd 9-15 2nd 3-17 1st 6-149.5 2nd 9-17 2nd 3-18 1st 6-149.6 1st 9-17.3 1st 3-19 4th 6-150 3rd 9-17.4 1st 3-20 22nd 6-150.1 4th 9-17.5 1st 3-20 23rd 6-150.2 6th 9-22 15th 4-1 1st 6-163.2 3rd 9-22.1 4th 4-2 1st 6-179 22nd 20-42 17th 4-3 5th 6-179.1 14th 20-43 15th 4-4 3rd 6-179.3 11th 20-44 14th 4-5 1st 6-179.3 12th 20-45 9th 4-5.1 Original 6-179.7 11th 20-47.13 10th

(This page filed under Transmittal No. 2681)

Issued: December 31, 1997

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 35 to TARIFF F.C.C. NO. 73 Page 2 of 2

ACCESS SERVICE

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

20-47.14 10th 20-326 Original 20-359 Original 20-47.15 9th 20-327 Original 20-360 Original 20-47.15 10th 20-328 Original 20-361 Original 20-47.16 8th 20-329 Original 20-362 Original 20-17.16 9th 20-330 Original 20-363 Original 20-47.17 11th 20-331 Original 20-364 Original 20-47.17 12th 20-332 Original 20-365 Original 20-47.32 6th 20-333 Original 20-366 Original 20-301 Original 20-334 Original 20-367 Original 20-302 Original 20-335 Original 20-368 Original 20-303 Original 20-336 Original 20-369 Original 20-304 Original 20-337 Original 20-370 Original 20-305 Original 20-338 Original 20-371 Original 20-306 Original 20-339 Original 20-372 Original 20-307 Original 20-340 Original 20-373 Original 20-308 Original 20-341 Original 20-374 Original 20-309 Original 20-342 Original 20-375 Original 20-310 Original 20-343 Original 20-311 Original 20-344 Original 20-312 Original 20-345 Original 20-313 Original 20-346 Original 20-314 Original 20-347 Original 20-315 Original 20-348 Original 20-316 Original 20-349 Original 20-317 Original 20-350 Original 20-318 Original 20-351 Original 20-319 Original 20-352 Original 20-320 Original 20-353 Original 20-321 Original 20-354 Original 20-322 Original 20-355 Original 20-323 Original 20-356 Original 20-324 Original 20-357 Original 20-325 Original 20-358 Original

(This page filed under Transmittal No. 2681)

Issued: December 31, 1997

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 33 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

The Bureau's Memorandum Opinion and Order in the Matter of 1997 Annual Access Tariff Filings; National Exchange Carrier Association Universal Service Fund and Lifeline Assistance Rates (1997 Annual Access Filing Compliance Order), released June 27, 1997, orders the following: -rate elements reflecting base factor portion forecasts, equal access exogenous cost changes, and growth factor calculations are suspended for one day and subject to an investigation. Pursuant to the 1997 Annual Access Filing Compliance Order (DA 97-1350), tariff revisions filed in Transmittal No. 2640, reflecting the aforementioned issues, and found on the following tariff pages are advanced one day to June 30, 1997 and then suspended one day to July 1, 1997.

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 3-20 21st 4-10 8th 4-11 8th 4-12 7th 6-179 21st 6-185 19th 9-22 14th 9.22.2 8th

(This page filed under Transmittal No. 2644) Issued: June 30, 1996 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 32 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Suspension Order released June 13, 1997, In the Matter of Southwestern Bell Telephone Company Tariff F.C.C. No. 73, and under authority of DA 97-1251, the RFP tariff revisions filed under Transmittal No. 2633 are suspended for 5 months to November 13, 1997.

Number of Revision Except as Page Indicated 31.3 8th 2-6 26th 2-115 9th 29-1 5th 29-2 5th 29-3 6th 29-4 6th 29-5 Original 29-6 Original

(This page filed under Transmittal No. 2641) Issued: June 19, 1997 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 31 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

The purpose of this supplement is to cancel Supplement No. 30, issued April 11, 1997. Supplement No. 30, issued in compliance with the Bureau's Order released April 8, 1997, In the Matter of Southwestern Bell Telephone Company Tariff F.C.C. No. 73, Transmittal No. 2622, and under authority of DA 97-696, the promotional offering tariff structure and the temporary promotion of the High Capacity Term Pricing Plan (HC-TPP), suspended Transmittal No. 2622 for five months to September 9, 1997. Under Transmittal No. 2637, the Telephone Company withdraws Transmittal No. 2622, effective June 5, 1997.

(This page filed under Transmittal No. 2637) Issued: June 4, 1997 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 30 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Order released April 8, 1997, In the Matter of Southwestern Bell Telephone Company Tariff F.C.C. No. 73, Transmittal No. 2622, and under authority of DA 97-696, the promotional offering tariff structure and the temporary promotion of the High Capacity Term Pricing Plan (HC-TPP), filed under Transmittal No. 2622 are suspended for five months to September 9, 1997.

Number of Revision Except as Page Indicated 31.6 1st 33-1 Original 33-2 Original 33-3 Original 33-4 Original 33-5 Original

(This page filed under Transmittal No. 2627) Issued: April 11, 1997 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 29 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

The Bureau's Memorandum Opinion and Order In the Matter of 1996 Annual Access Tariff Filings (DA 96-1022), released June 24, 1996, orders the following: - OPEBs costs included in the rate base as specified in Section II.A of the Memorandum Opinion and Order are suspended for one day and are subject to and consolidated in the investigation instituted in CC Docket No. 93-193. The accounting order imposed in CC Docket No. 93-193 will also apply to the rates that are affected by this order to facilitate any refunds that may later prove necessary. Pursuant to the Bureau's Memorandum Opinion and Order, In the Matter of 1996 Annual Access Tariff Filings (DA 96-1022), released June 24, 1996, tariff revisions filed in Transmittal No. 2544, reflecting the aforementioned issues, and found on the following tariff pages, are advanced one day to June 30, 1996 and then suspended one day to July 1, 1996.

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 3-20 17th 7-209.84 Original 19-173 Original 4-10 6th 7-209.85 Original 19-174 Original 4-11 6th 7-209.86 Original 19-175 Original 4-12 6th 7-209.87 Original 6-179 18th 7-209.88 Original 6-179.1 10th 9-22 13th 6-179.3 6th 9-22.1 3rd 6-179.4 5th 9-22.2 7th 6-179.5 5th 19-1 3rd 6-185 18th 19-161 Original 6-209 12th 19-162 Original 7-209.74 Original 19-163 Original 7-209.75 Original 19-164 Original 7-209.76 Original 19-165 Original 7-209.77 Original 19-166 Original 7-209.78 Original 19-167 Original 7-209.79 Original 19-168 Original 7-209.80 Original 19-169 Original 7-209.81 Original 19-170 Original 7-209.82 Original 19-171 Original 7-209.83 Original 19-172 Original

(This page filed under Transmittal No. 2561) Issued: June 27, 1996 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 28 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Order released May 24, 1996 In the Matter of CC Docket No. 94-97 and Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No. 73, Transmittal No. 2546, and under authority of DA 96-844, the tariff revisions to add an additional type of interconnector- designated equipment (IDE), which were deferred under Transmittal No. 2553 and found on the following page, are suspended for one day to June 2, 1996.

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 25-30.8 13th

(This page filed under Transmittal No. 2555) Issued: June 3, 1996 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 27 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Order released April 4, 1996 in the matter of Southwestern Bell Telephone Company Tariff F.C.C. No. 73, Transmittal No. 2524, and under authority of DA 96-501, the tariff revisions to change certain existing virtual collocation rates; delete interconnector-designated equipment which have no demand and modify jurisdictional reporting requirements, service provisioning intervals, and designation of dedicated equipment regulations pertaining to virtual collocation, which were deferred under Transmittal Nos. 2534 and 2540 and found on the following pages, are suspended for one day to April 13, 1996.

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 2-2 7th 25-28 9th 25-30.11.1 5th 2-45.3 15th 25-29 7th 25-30.12 11th 2-45.4 14th 25-29.1 7th 25-30.13 5th 2-52.7 8th 25-29.2 5th 25-30.14 5th 2-52.8 11th 25-30 7th 25-30.15 5th 2-53 9th 25-30.1 7th 25-30.16 9th 2-54 7th 25-30.2 7th 25-30.16.1 7th 2-54.1 2nd 25-30.2.1 7th 25-30.17 9th 5-18 7th 25-30.3 9th 25-30.18 9th 25-1 11th 25-30.4 10th 25-30.19 13th 25-2 13th 25-30.5 11th 25-30.19.1 5th 25-10 8th 25-30.5.1 5th 25-30.19.2 5th 25-18 8th 25-30.6 5th 25-30.20 5th 25-19 12th 25-30.7 5th 25-30.21 7th 25-20.1 10th 25-30.8 11th 25-31 5th 25-20.2 8th 25-30.8.1 5th 25-32 8th 25-20.3 2nd 25-30.9 9th 25-32.1 5th 25-22 7th 25-30.10 7th 25-32.2 4th 25-24 16th 25-30.10.1 7th 25-32.3 4th 25-26 8th 25-30.10.2 5th 25-33 7th 25-27 7th 25-30.11 11th 25-34 9th 25-27.1 7th

(This page filed under Transmittal No. 2545) Issued: April 11, 1996 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 26 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Order released December 15, 1995 and In the Matter of CC Docket No. 94-97 and Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No. 73, Transmittal Nos. 2499 and 2519, and under authority of DA 95-2487, the Alarm Collection Device (ACD) Access Link and Engineering Design Charge application revisions pertaining to virtual collocation, which were deferred under Transmittal No. 2522 and found on the following pages, are suspended for one day to December 17, 1995.

Number of Revision Except as Page Indicated 31.1 8th 25-2 10th 25-14.5 6th 25-14.6 3rd 25-17.2 3rd 25-20.2 5th 25-21.1 9th 25-23 8th 25-24 13th 25-32 5th 25-33 4th 25-34 6th

(This page filed under Transmittal No. 2526) Issued: January 11, 1996 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 25 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Order In the Matter of CC Docket No. 95-158 released October 13, 1995 and under authority of DA95-2156, the following Specialized Service or Arrangements tariff revision filed under Transmittal No. 2470 is suspended for five months to March 14, 1996.

Number of Revision Except as Page Indicated 12-16 2nd

(This page filed under Transmittal No. 2507) Issued: October 20, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 24 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Order released June 26, 1995 and In the Matter of Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No. 73, Transmittal Nos. 2433 and 2449, and under authority of DA 95-1445, the Request for Proposal (RFP) revisions, filed under Transmittal Nos. 2433 and 2449, are suspended for five months to November 27, 1995.

Number of Revision Except as Page Indicated 31.3 5th 2-6 12th 2-115 6th 29-1 2nd 29-2 2nd 29-3 3rd 29-4 3rd

(This page filed under Transmittal No. 2475) Issued: June 29, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 23 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Order in CC Docket No. 94-97 and In the Matter of Southwestern Bell Telephone Company Revisions to Tariff F.C.C. No. 73, Transmittal No. 2440, and under authority of DA95-933, the Expanded Interconnection tariff revisions introducing the Alarm Collection Device, filed under Transmittal No. 2440, are suspended for one day to April 30, 1995.

Number of Revision Except as Page Indicated 2-3 10th 2-4 6th 2-5 5th 2-93 3rd 2-101 2nd 2-105 2nd 5-30 6th 25-1 8th 25-2 7th 25-3 5th 25-14.5 2nd 25-17.1 5th 25-17.2 Original 25-18 5th 25-18.1 5th 25-18.2 5th 25-18.3 3rd 25-19 9th 25-20.2 2nd 25-21.1 6th 25-23 5th 25-32.2 Original 25-32.3 Original 25-54 2nd

(This page filed under Transmittal No. 2454) Issued: May 1, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 22 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Under authority of Special Permission No. 95-426 of the Federal Communications Commission, the effective date of the SecureNet Loop Redundancy Optional Feature and Self Healing Transport Network (STN) revisions found on the following tariff pages are being deferred to June 1, 1995. These tariff revisions were contained in Transmittal No. 2411 which was originally filed December 16, 1994, to become effective February 1, 1995, and subsequently deferred to February 14, 1995, March 6, 1995, and April 15, 1995 respectively, under Transmittal Nos. 2424, 2427 and 2436. Number of Revision Except as Page Indicated 2-76.20 2nd 2-76.21 2nd 2-78.3 4th 7-170 4th 7-171 1st 7-176 4th 7-177 1st 7-179 1st 7-181 1st 7-182 1st 7-183 3rd 7-188 5th 7-189.4 2nd 7-189.9 2nd 7-189.14 2nd 7-209.16 3rd 19-12 2nd 20-6 2nd 20-11 5th 20-13 2nd 20-46 7th 20-47.5 3rd 20-47.11 3rd 20-47.17 3rd 20-182 2nd 20-183.5 1st 27-7 5th

(This page filed under Transmittal No. 2447) Issued: April 14, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 1 of 16 ACCESS SERVICE The purpose of this Supplement is to cancel Supplement No. 19, issued February 17, 1995, and to replace it to reflect the Rate Adjustment Factors (RAFs) and revised rates as listed below. SWBT originally filed Supplement No. 16 in compliance with the Bureau's Order in CC Docket No. 94-97, the Virtual Collocation Tariff Suspension Order, released December 9, 1994, and Erratum, released December 12, 1994. In Supplement No. 16, the Expanded Interconnection tariff revisions which were filed under Transmittal No. 2383, and subsequently revised under Transmittal Nos. 2388, 2392, 2397 and 2407, were advanced for one day to December 14, 1994 and suspended for one day to December 15, 1994, and employed the RAFs outlined in the Bureau's Order. Subsequently, in the Erratum released February 10, 1995 in CC Docket No. 94-97, the Bureau addressed certain proposed rate elements which were filed in Transmittal No. 2407, but were inadvertently neglected in Appendix C of the Bureau's Virtual Collocation Tariff Suspension Order. These rate elements were included in Supplement No. 19, which canceled Supplement No. 16, and became effective on February 18, 1995. In addition, SWBT revised rates originally filed in Supplement No. 16 which reflected the application of an incorrect RAF. At this time, pursuant to Commission directive, SWBT proposes to revise the rate elements that were originally filed in Transmittal No. 2407 and subsequently revised in Supplement No. 19. At the direction of the Commission, these rates are being revised to reflect the application of the RAFs that were specified in Appendix C of the Bureau's Virtual Collocation Tariff Suspension Order. In addition and at the direction of the Commission Staff, SWBT proposes to apply the RAF specified in Appendix C of the Bureau's Virtual Collocation Tariff Suspension Order to the ADC SONEPLEX 2000 (SONEPLEX) rates filed under Transmittal No. 2407. SWBT originally filed the SONEPLEX rates under Transmittal No. 2397 and subsequently revised those rates under Transmittal No. 2407. Appendix C of the Bureau's Virtual Collocation Tariff Suspension Order neglected to reflect the revised SONEPLEX rates filed under Transmittal No. 2407. This Supplement clarifies that the RAFs are applied to all rates as of December 15, 1994. Pursuant to the Bureau's Virtual Collocation Tariff Suspension Order, the tariff revisions are suspended in part and the entire rate is suspended for one day and the part of the rate that exceeds the rate levels designated in the Virtual Collocation Tariff Suspension Order is suspended for five months to May 15, 1995. Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (1) Basic Arrangement (per arrangement) (a) AT&T (1) DDM1000 (XXXX) (336 DS1s, each) 0.4700 $ 12.15 $ 1,974.00 (2) DDM2000 OC-3 (XXXX) (504 DS1s or 18 DS3s, each) 0.4700 $ 10.45 $ 1,697.64 (3) DDM2000 OC-12 (XXXX) (48 DS3s or 16 OC-3s, each) 0.4700 $ 10.48 $ 1,703.28 (4) FT2000 OC-48 (XXXX) (48 DS3s or 8 OC-3s, each) 0.4700 $ 179.28 $ 29,132.01 (This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 2 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (1) Basic Arrangement (Cont'd) (per arrangement) (b) Fujitsu (1) FLM150 OC-3 (XXXX) (504 DS1s or 18 DS3s, each) 0.4700 $ 10.01 $ 1,627.14 (2) FLM600 OC-12 (XXXX) (72 DS3s or 24 OC-3s, each) 0.4700 $ 10.73 $ 1,744.64 (3) FLM2400 OC-48 (XXXX) (96 DS3s or 8 OC-12s, each) 0.4700 $ 9.15 $ 1,487.08 (4) FLM2400 OC-48 (1557nm) (XXXX) (96 DS3s and 8 OC-12s, each) 0.4700 $ 27.89 $ 5,118.77 (5) FLM2400 OC-48 (XXXX) (16 OC-3s, each) 0.4700 $ 9.15 $ 1,487.08 (c) Northern Telecom (1) FMT 150C (XXXX) (448 DS1s, each) 0.4700 $ 29.28 $ 4,752.17 (2) FMT 150D (XXXX) (48 DS3s, each) 0.4700 $ 29.38 $ 4,773.79 (3) OC-12 (XXXX) (36 DS3s or XX OC-3s, each) 0.4700 $ 27.71 $ 4,503.54 (4) OC-48 (XXXX) (48 DS3s or 4 OC-12s, each) 0.4700 $ 36.14 $ 5,873.12

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 3 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (1) Basic Arrangement (Cont'd) (per arrangement) (d) Reliance Comm/Tec DISC*S (XXXX) (672 Voice Grade, each) 0.7400 $ 471.99 $ 76,693.60 (e) Tellabs TITAN 5500S (XXXX) (3,584 DS1s, each) 0.4700 $ 723.16 $117,352.89 (f) ADC SONEPLEX 2000 (XXXX) (112 DS1s or 84 DS1s and 1 DS3, each) 0.4700 $ 107.67 $ 19,761.62 (g) ALCATEL (1) LTS 1565 (XXXX) (36 DS3s, each) 0.4700 $ 573.77 $105,304.44 (2) 3X50 (XXXX) (336 DS1s or 24 DS3s, each) 0.4700 $ 92.83 $ 17,037.97 (h) NEC (1) IMT-150 (XXXX) (420 DS1s or 15 DS3s, each) 0.4700 $ 51.04 $ 9,368.04 (2) ITS-600 (36 DS3s or 12 OC3s, each) 0.4700 $ 56.74 $ 10,414.73

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 4 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (2) Array (a) Primary Array (1) AT&T DDM1000 (XXXX) (56 DS1s, each) 0.4700 $ 34.03 $ 5,529.55 (2) AT&T DDM2000 OC-3 (XXXX) (84 DS1s or 3 DS3s, each) (a) SONET Ring 0.4700 $ 200.62 $ 32,599.20 (b) Terminal 0.4700 $ 184.74 $ 30,017.96 (c) Linear Chain 0.4700 $ 309.82 $ 50,342.64 (3) AT&T DDM2000 OC-12 (XXXX) (12 DS3s or 4 OC-3s, each) (a) SONET Ring 0.4700 $ 318.40 $ 51,737.13 (b) Terminal 0.4700 $ 285.10 $ 46,326.02 (4) AT&T FT2000 OC-48 (XXXX) (48 DS3s or 8 OC-3s, each) 0.4700 $ 406.74 $ 66,090.93 (5) Fujitsu FLM150 OC-3 SONET Ring (XXXX) (84 DS1s or 3 DS3s, each) 0.4700 $ 351.92 $ 57,183.96 (6) Fujitsu FLM150 OC-3 Terminal (XXXX) (84 DS1s or 3 DS3s, each) 0.4700 $ 282.30 $ 45,870.12 (7) Fujitsu FLM150 OC-3 Linear Chain (XXXX) (84 DS1s or 3 DS3s, each) 0.4700 $ 280.04 $ 45,503.99 (8) Fujitsu FLM600 OC-12 SONET Ring (XXXX) (12 DS3s or 4 OC-3s, each) 0.4700 $ 430.09 $ 69,885.71 (9) Fujitsu FLM600 OC-12 Terminal (XXXX) (12 DS3s or 4 OC-3s, each) 0.4700 $ 430.09 $ 69,885.71 (10) Fujitsu FLM600 OC-12 Linear Chain (XXXX) (12 DS3s or 4 OC-3s, each) 0.4700 $ 579.07 $ 94,092.12 (11) Fujitsu FLM2400 OC-48 SONET Ring (XXXX) (48 DS3s or 4 OC-12s, each) 0.4700 $ 813.29 $132,151.78 (12) Fujitsu FLM2400 OC-48 SONET Ring (XXXX) (16 OC-3s, each) 0.4700 $ 813.29 $132,151.78 (13) Fujitsu FLM2400 OC-48 (1557nm) Terminal (XXXX) (48 DS3s, each) 0.4700 $1,178.75 $216,342.88

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 5 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (2) Array (Cont'd) (a) Primary Array (Cont'd) (14) Fujitsu FLM2400 OC-48 Terminal (XXXX) (48 DS3s or 4 OC-12s, each) 0.4700 $ 807.62 $131,228.70 (15) Fujitsu FLM2400 OC-48 Terminal (XXXX) (16 OC-3s, each) 0.4700 $ 807.62 $131,228.70 (16) Fujitsu FLM2400 OC-48 Linear Chain (XXXX) (48 DS3s or 4 OC-12s, each) 0.4700 $ 813.29 $132,151.78 (17) Fujitsu FLM2400 OC-48 Linear Chain (XXXX) (16 OC-3s, each) 0.4700 $ 813.29 $132,151.78 (18) Northern Telecom FMT150C (XXXX) (56 DS1s, each) 0.4700 $ 42.52 $ 6,901.01 (19) Northern Telecom FMT150D (XXXX) (6 DS3s, each) 0.4700 $ 122.12 $ 19,842.93 (20) Northern Telecom OC-12 (XXXX) (12 DS3s or 4 OC-3s, each) 0.4700 $ 659.28 $107,125.69 (21) Northern Telecom OC-48 (XXXX) (48 DS3s or 4 OC-12s, each) 0.4700 $1,893.24 $307,631.45 (22) Tellabs TITAN 5500S (XXXX) (448 DS1s or 64 DS3s, each) 0.4700 $ 26.14 $ 4,247.39 (23) ADC SONEPLEX 2000 (XXXX) (28 DS1s or 1 DS3, each) 0.4700 $ 35.58 $ 6,531.12 (24) ALCATEL LTS 1565 (XXXX) (12 DS3s, each) 0.4700 $ 279.67 $ 51,329.64 (25) ALCATEL 3X50 (XXXX) (28 DS1s or 3 DS3s, each) 0.4700 $ 216.54 $ 39,741.79 (26) NEC IMT-150 (XXXX) (84 DS1s or 3 DS3s, each) 0.4700 $ 126.17 $ 23,157.37 (27) NEC ITS-600 (XXXX) (12 DS3s or 4 OC-3s, each) 0.4700 $ 260.34 $ 47,781.61

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 6 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (2) Array (Cont'd) (b) Secondary Array (1) AT&T DDM1000 (XXXX) (28 DS1s, each) 0.4700 $ 48.02 $ 7,802.94 (2) AT&T DDM2000 OC-3 (XXXX) (28 DS1s, each) 0.4700 $ 34.19 $ 5,555.40 (3) AT&T DDM2000 OC-3 (XXXX) (1 DS3, each) 0.4700 $ 18.46 $ 3,000.48 (4) AT&T DDM2000 OC-12 (XXXX) (3 DS3s, each) 0.4700 $ 48.65 $ 7,905.87 (5) AT&T DDM2000 OC-12 (XXXX) (1 OC-3, each) 0.4700 $ 37.52 $ 6,097.31 (6) AT&T FT2000 OC-48 (XXXX) (3 DS3s, each) 0.4700 $ 75.74 $ 12,306.95 (7) AT&T FT2000 OC-48 (XXXX) (1 OC-3, each) 0.4700 $ 55.55 $ 9,026.82 (8) Fujitsu FLM150 OC-3 (XXXX) (28 DS1s, each) 0.4700 $ 21.96 $ 3,569.18 (9) Fujitsu FLM150 OC-3 (XXXX) (1 DS3, each) 0.4700 $ 14.49 $ 2,354.23 (10) Fujitsu FLM600 OC-12 (XXXX) (3 DS3s, each) 0.4700 $ 23.36 $ 3,796.19 (11) Fujitsu FLM600 OC-12 (XXXX) (2 OC-3s, each) 0.4700 $ 58.26 $ 9,466.74 (12) Fujitsu FLM2400 OC-48 (XXXX) (24 DS3s or 2 OC-12s, each) 0.4700 $ 77.08 $ 12,525.50 (13) Fujitsu FLM2400 OC-48 (1557 nm) (XXXX) (24 DS3s, each) 0.4700 $ 77.08 $ 12,525.50 (14) Fujitsu FLM2400 OC-48 (XXXX) (4 OC-3s, each) 0.4700 $ 398.68 $ 64,781.04 (15) Northern Telecom FMT 150C (XXXX) (28 DS1s, each) 0.4700 $ 5.66 $ 918.85

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 7 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (2) Array (Cont'd) (b) Secondary Array (16) Northern Telecom FMT 150D (XXXX) (1 DS3, each) 0.4700 $ 14.72 $ 2,391.83 (17) Northern Telecom OC-12 (XXXX) (12 DS3s, each) 0.4700 $ 78.70 $ 12,788.70 (18) Northern Telecom OC-12 (XXXX) (4 OC-3s, each) 0.4700 $ 51.43 $ 8,356.60 (19) Northern Telecom OC-48 (XXXX) (48 DS3s, each) 0.4700 $ 36.87 $ 5,990.62 (20) Northern Telecom OC-48 (XXXX) (1 OC-12, each) 0.4700 $ 80.03 $ 13,004.43 (21) Tellabs TITAN 5500S (XXXX) (112 DS1s, each) 0.4700 $ 124.95 $ 20,303.06 (22) Tellabs TITAN 5500S (XXXX) (16 DS3s, each) 0.4700 $ 145.11 $ 23,578.49 (23) ADC SONEPLEX 2000 (XXXX) (56 DS1s, each) 0.4700 $ 6.16 $ 1,299.08 (24) ADC SONEPLEX 2000 (XXXX) (1 DS3, each) 0.4700 $ 6.88 $ 1,261.95 (25) ALCATEL 3X50 (XXXX) (29 to 84 DS1s, each) 0.4700 $ 192.47 $ 35,324.73 (26) ALCATEL 3X50 (XXXX) (1 DS3, each) 0.4700 $ 12.30 $ 2,256.94 (27) NEC IMT-150 (XXXX) (28 DS1s, each) 0.4700 $ 58.31 $ 10,701.43 (28) NEC IMT-150 (XXXX) (1 DS3, each) 0.4700 $ 32.73 $ 6,007.54 (29) NEC ITS-600 (XXXX) (3 DS3s, each) 0.4700 $ 42.76 $ 7,847.59 (30) NEC ITS-600 (XXXX) (1 OC-3, each) 0.4700 $ 34.56 $ 6,342.65

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 8 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (2) Array (Cont'd) (c) Tertiary Array (1) Fujitsu FLM600 OC-12 (XXXX) (1 OC-3, each) 0.4700 $ 19.09 $ 3,102.47 (2) Fujitsu FLM2400 OC-48 (XXXX) (12 DS3s, each) 0.4700 $ 20.60 $ 3,346.87 (3) Fujitsu FLM2400 OC48 (1557 nm) (XXXX) (12 DS3s, each) 0.4700 $ 20.60 $ 3,346.87 (4) Fujitsu FLM2400 OC48 (XXXX) (1 OC-12, each) 0.4700 $ 148.52 $ 24,133.56 (5) Northern Telecom OC-48 (XXXX) (24 DS3s, each) 0.4700 $ 9.82 $ 1,596.12 (6) Tellabs TITAN 5500S (XXXX) (28 DS1s, each) 0.4700 $ 8.18 $ 1,329.63 (7) Tellabs TITAN 5500S (XXXX) (896 DS1s or 32 DS3s, each) 0.4700 $ 33.39 $ 5,426.15 (8) Tellabs TITAN 5500S (XXXX) (8 DS3s, each) 0.4700 $ 20.56 $ 3,340.29 (9) ALCATEL 3X50 (XXXX) (28 DS1s, each) 0.4700 $ 3.15 $ 579.04

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 9 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (3) Termination Cards (per card) (a) AT&T DDM1000 (XXXX) (4 DS1s, each) 0.5900 $ 11.09 first 4 DS1s $ 1,864.40 additional 4 DS1s $ 1,847.88 (b) AT&T DDM2000 OC-3 (XXXX) (1) 4 DS1s (SONET Ring) 0.6000 $ 5.63 first 4 DS1s $ 766.57 additional 4 DS1s $ 753.41 (2) 4 DS1s (Terminal and Linear Chain) 0.6000 $ 5.63 first 4 DS1s $ 978.60 additional 4 DS1s $ 961.80 (3) 1 DS3 0.4700 $ 10.32 first DS3 $ 1,768.14 additional DS3 $ 1,746.99 (c) AT&T DDM2000 OC-12 (XXXX) (1) 3 DS3s 0.4700 $ 34.05 first 3 DS3s $ 5,624.02 additional 3 DS3s $ 5,603.34 (2) 1 OC-3 0.4700 $ 28.54 first OC-3 $ 4,727.73 additional OC-3 $ 4,707.05 (d) AT&T FT2000 OC-48 (XXXX) (1) 3 DS3s 0.4700 $ 39.79 first 3 DS3s $ 6,556.97 additional 3 DS3s $ 6,535.82 (2) 1 OC-3 0.4700 $ 43.90 first OC-3 $ 7,224.84 additional OC-3 $ 7,203.69

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 10 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (3) Termination Cards (Cont'd) (per card) (e) Fujitsu FLM150 OC-3 (XXXX) (1) 4 DS1s 0.6000 $ 10.09 first 4 DS1s $ 1,755.60 additional 4 DS1s $ 1,728.60 (2) 1 DS3 0.4700 $ 10.41 first DS3 $ 1,781.77 additional DS3 $ 1,760.62 (f) Fujitsu FLM600 OC-12 (XXXX) (1) 3 DS3s 0.4700 $ 15.81 first 3 DS3s $ 2,658.79 additional 3 DS3s $ 2,638.11 (2) 1 OC-3 0.4700 $ 19.09 first OC-3 $ 3,193.18 additional OC-3 $ 3,172.50 (g) Fujitsu FLM2400 OC-48 (XXXX) (1) 3 DS3s 0.4700 $ 13.38 first 3 DS3s $ 2,264.46 additional 3 DS3s $ 2,243.31 (2) 1 OC-3 0.4700 $ 19.09 first OC-3 $ 3,193.18 additional OC-3 $ 3,172.50 (3) 1 OC-12 0.4700 $ 71.84 first OC-12 $ 11,764.57 additional OC-12 $ 11,743.42 (h) Fujitsu FLM2400 OC-48 (1557 nm) (XXXX) (3 DS3s) 0.4700 $ 13.38 first 3 DS3s $ 2,264.46 additional 3 DS3s $ 2,243.31

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 11 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (3) Termination Cards (Cont'd) (per card) (i) Northern Telecom FMT150C (XXXX) (4 DS1s, each) 0.6000 $ 10.03 first 4 DS1s $ 1,691.40 additional 4 DS1s $ 1,674.60 (j) Northern Telecom FMT150D (XXXX) (1 DS3) 0.4700 $ 13.35 first DS3 $ 2,260.70 additional DS3 $ 2,239.55 (k) Northern Telecom OC-12 (XXXX) (1) 3 DS3s 0.4700 $ 32.43 first 3 DS3s $ 5,359.41 additional 3 DS3s $ 5,338.73 (2) 1 OC-3 0.4700 $ 21.19 first OC-3 $ 3,534.40 additional OC-3 $ 3,513.25 (l) Northern Telecom OC-48 (XXXX) (1) 3 DS3 0.4700 $ 32.43 first 3 DS3 $ 5,360.35 additional 3 DS3 $ 5,339.20 (2) 1 OC-12 0.4700 $ 70.41 first OC-12 $ 11,531.45 additional OC-12 $ 11,510.30 (m) Reliance Comm/Tec (XXXX) (2 Voice Grade) 0.7400 $ 1.02 first 2 Voice Grade $ 244.20 additional 2 Voice Grade $ 223.48

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 12 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (3) Termination Cards (Cont'd) (per card) (n) Tellabs TITAN 5500S (XXXX) (1) 4 DS1s 0.6000 $ 9.16 first 4 DS1s $ 1,551.60 additional 4 DS1s $ 1,534.80 (2) 1 DS3 0.4700 $ 18.03 first DS3 $ 3,020.69 additional DS3 $ 3,000.01 (o) ADC SONEPLEX 2000 (XXXX) (1) 1 DS1 0.6000 $ 1.51 first DS1 $ 393.60 additional DS1 $ 366.60 (2) 1 DS3 0.4700 $ 13.70 first DS3 $ 2,605.21 additional DS3 $ 2,584.06 (p) ALCATEL LTS 1565 (XXXX) (1 DS3) 0.4700 $ 11.26 first DS3 $ 2,157.77 additional DS3 $ 2,136.62 (q) ALCATEL 3X50 (XXXX) (1) 4 DS1s 0.6000 $ 8.97 first 4 DS1s $ 1,762.20 additional 4 DS1s $ 1,735.80 (2) 1 DS3 0.4700 $ 9.02 first DS3 $ 1,745.58 additional DS3 $ 1,724.43

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 13 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (3) Termination Cards (Cont'd) (per card) (r) NEC IMT-150 (XXXX) (1) 4 DS1s 0.6000 $ 2.95 first 4 DS1s $ 656.40 additional 4 DS1s $ 630.00 (2) 1 DS3 0.4700 $ 5.41 first DS3 $ 1,084.29 additional DS3 $ 1,063.14 (s) NEC ITS-600 (XXXX) (1) 3 DS3s 0.4700 $ 7.41 first 3 DS3s $ 1,450.89 additional 3 DS3s $ 1,429.74 (2) 1 OC3 0.4700 $ 16.76 first OC3 $ 3,167.33 additional OC3 $ 3,146.65 (B) Entrance Cable (1) Entrance Cable (XXXX) (per cable) 0.4700 $ 13.09 $ 308.79 (2) Splice Case (XXXX) (per splice case) 0.4700 $ 3.86 $ 627.45 (3) Riser Tail (XXXX) (per tail) 0.4700 $ 59.84 $ 9,722.89 (C) Interconnection Cross Connect (per cross connect) (1) DS3 (SP1A3,SP1B3) 0.800 $ 37.06 (2) DS1 (SP1A1,SP1B1) 1.000 $ 4.64

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 14 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (D) Nondesignated Conversion Arrangement (per arrangement) (1) DS3 to DS1 (XXXX,XXXX) 0.5100 $ 415.65 1.0000 $ 202.00 (2) DS1 to Voice Grade (XXXX,XXXX) 0.4700 $ 212.27 1.0000 $ 0.00 (3) DS1 to DS0 (XXXX,XXXX) 0.4700 $ 212.27 1.0000 $ 0.00 (E) Switched Transport Connection (per switched transport connection) (CXCFX) 0.5800 $ 3.50 $ 0.00 (F) Engineering Design Charge 1.0000 $ 398.00 (G) Additional Labor (a) Engineer 1st Half Hour 1.0000 $ 29.62 Additional Half Hour 1.0000 $ 29.62 (b) Technician First Half Hour 1.0000 $ 19.87 Additional Half Hour 1.0000 $ 19.87

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 15 of 16

ACCESS SERVICE

In compliance with the Bureau's Order in CC Docket No. 94-97 released December 9, 1994 and under authority of DA94-1421, the following Expanded Interconnection tariff revisions filed under Transmittal No. 2410 were suspended for one day to December 15, 1994. Number of Revision Except as Page Indicated 25-10 5th 25-21 8th The Expanded Interconnection revisions found on the following tariff pages became effective December 15, 1994: Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 31.1 5th 5-12.1 2nd 25-14.2 4th 32 4th 5-14 2nd 25-14.3 2nd 36 4th 5-17.1 6th 25-14.4 2nd 41 4th 5-17.2 8th 25-14.5 1st 2-3 8th 5-17.3 3rd 25-15 4th 2-4 5th 5-17.4 1st 25-16 5th 2-6 5th 5-17.5 1st 25-16.1 5th 2-8 4th 5-17.6 1st 25-17 5th 2-45.2 8th 5-18 4th 25-17.1 4th 2-45.3 8th 5-19 2nd 25-18 4th 2-45.4 10th 5-20 4th 25-18.1 4th 2-45.5 5th 5-25 5th 25-18.2 4th 2-45.6 1st 5-26 2nd 25-18.3 2nd 2-52.7 2nd 5-30 5th 25-19 8th 2-52.8 4th 5-31 3rd 25-20 12th 2-52.9 2nd 5-35 5th 25-20.1 7th 2-52.10 2nd 6-6 6th 25-20.2 1st 2-79.1 3rd 6-165.1 6th 25-21.1 5th 2-79.2 4th 25-1 7th 25-22 4th 2-80 2nd 25-2 4th 25-23 4th 2-94 2nd 25-2.1 1st 25-24 10th 2-100 3rd 25-3 4th 25-25 5th 2-103 3rd 25-4 6th 25-25.1 4th 2-104 5th 25-5 4th 25-26 4th 2-110 2nd 25-6 3rd 25-27 3rd 2-114.1 2nd 25-7 3rd 25-27.1 3rd 2-115 4th 25-8 6th 25-28 5th 2-121 4th 25-9 3rd 25-29 3rd 5-1 11th 25-11 3rd 25-29.1 3rd 5-4 3rd 25-11.1 4th 25-29.2 1st 5-5.1 2nd 25-12 3rd 25-30 3rd 5-7 3rd 25-13 3rd 25-30.1 3rd 5-8 3rd 25-14 3rd 25-30.2 3rd 5-8.1 2nd 25-14.1 3rd 25-30.2.1 3rd 5-8.2 3rd

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 21 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 19 Page 16 of 16

ACCESS SERVICE

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 25-30.3 5th 25-39 1st 25-30.4 6th 25-40 1st 25-30.5 7th 25-41 1st 25-30.5.1 1st 25-42 1st 25-30.6 1st 25-43 1st 25-30.7 1st 25-44 1st 25-30.8 7th 25-45 1st 25-30.8.1 1st 25-46 1st 25-30.9 5th 25-47 1st 25-30.10 3rd 25-48 1st 25-30.10.1 3rd 25-48.1 1st 25-30.10.2 1st 25-49 1st 25-30.11 7th 25-50 3rd 25.30.11.1 1st 25-51 1st 25-30.12 7th 25-52 1st 25-30.13 1st 25-53 1st 25-30.14 1st 25-54 1st 25-30.15 1st 25-55 1st 25-30.16 5th 25-56 1st 25-30.16.1 3rd 25-57 1st 25-30.17 5th 25-58 1st 25-30.18 5th 25-59 1st 25-30.19 9th 25-60 1st 25-30.19.1 1st 25-61 1st 25-30.19.2 1st 25-62 1st 25-30.20 1st 25-63 1st 25-30.21 3rd 25-64 1st 25-31 1st 25-65 1st 25-32 1st 25-66 1st 25-33 1st 25-67 1st 25-34 1st 25-68 1st 25-35 1st 25-36 1st 25-37 1st 25-38 1st

(This page filed under Transmittal No. 2444) Issued: April 11, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 20 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Under authority of Special Permission No. 95-250 of the Federal Communications Commission, the effective date of the SecureNet Loop Redundancy Optional Feature and Self Healing Transport Network (STN) revisions found on the following tariff pages are being deferred to April 15, 1995. These tariff revisions were contained in Transmittal No. 2411 which was originally filed December 16, 1994, to become effective February 1, 1995, and subsequently deferred to February 14, 1995 and March 6, 1995, respectively, under Transmittal Nos. 2424 and 2427. Number of Revision Except as Page Indicated 2-76.20 2nd 2-76.21 2nd 2-78.3 4th 7-170 4th 7-171 1st 7-176 4th 7-177 1st 7-179 1st 7-181 1st 7-182 1st 7-183 3rd 7-188 5th 7-189.4 2nd 7-189.9 2nd 7-189.14 2nd 7-209.16 3rd 19-12 2nd 20-6 2nd 20-11 5th 20-13 2nd 20-46 7th 20-47.5 3rd 20-47.11 3rd 20-47.17 3rd 20-182 2nd 20-183.5 1st 27-7 5th

(This page filed under Transmittal No. 2436) Issued: March 3, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 1 of 16

ACCESS SERVICE

The purpose of this Supplement is to cancel Supplement No. 16 issued December 13, 1994 and to replace it to include the additional Rate Adjustment Factors (RAFs) as listed below. Supplement No. 16 was originally filed in compliance with the Bureau's Order in CC Docket No. 94-97, the Virtual Collocation Tariff Suspension Order released December 9, 1994, and Erratum released December 12, 1994 and under authority of DA94-1421. In Supplement No. 16, the Expanded Interconnection tariff revisions filed under Transmittal No. 2383, and revised under Transmittal Nos. 2388, 2392, 2397 and 2407, were advanced for one day to December 14, 1994 and suspended for one day to December 15, 1994, and employed RAFs outlined in the Bureau's Order. Subsequently, in the Erratum released February 10, 1995 in CC Docket No. 94-97, the Bureau addressed certain proposed rate elements which were filed in Transmittal No. 2407, but were inadvertently neglected in Appendix C of the Bureau's Virtual Collocation Tariff Suspension Order. These rate elements are included in this Supplement and are scheduled to become effective on February 18, 1995. Pursuant to the Bureau's Virtual Collocation Tariff Suspension Order, the tariff revisions are suspended in part and the entire rate is suspended for one day and the part of the rate that exceeds the rate levels designated in the Virtual Collocation Tariff Suspension Order is suspended for five months to May 15, 1995. In addition, under authority of Special Permission No. 94-95, SWBT proposes to revise rates filed in Supplement No. 16, which reflected the application of an incorrect RAF. Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (1) Basic Arrangement (per arrangement) (a) AT&T (1) DDM1000 (XXXX) (336 DS1s, each) 0.4700 $ 12.15 $ 1,974.00 (2) DDM2000 OC-3 (XXXX) (504 DS1s or 18 DS3s, each) 0.4700 $ 10.45 $ 1,697.64 (3) DDM2000 OC-12 (XXXX) (48 DS3s or 16 OC-3s, each) 0.4700 $ 10.48 $ 1,703.28 (4) FT2000 OC-48 (XXXX) (48 DS3s or 8 OC-3s, each) 0.4700 $ 179.28 $ 29,132.01

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 2 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (1) Basic Arrangement (Cont'd) (per arrangement) (b) Fujitsu (1) FLM150 OC-3 (XXXX) (504 DS1s or 18 DS3s, each) 0.4700 $ 10.01 $ 1,627.14 (2) FLM600 OC-12 (XXXX) (72 DS3s or 24 OC-3s, each) 0.4700 $ 10.73 $ 1,744.64 (3) FLM2400 OC-48 (XXXX) (96 DS3s or 8 OC-12s, each) 0.4700 $ 9.15 $ 1,487.08 (4) FLM2400 OC-48 (1557nm) (XXXX) (96 DS3s and 8 OC-12s, each) 1.0000 $ 59.34 $ 10,891.00 (5) FLM2400 OC-48 (XXXX) (16 OC-3s, each) 0.4700 $ 9.15 $ 1,487.08 (c) Northern Telecom (1) FMT 150C (XXXX) (448 DS1s, each) 0.4700 $ 29.28 $ 4,752.17 (2) FMT 150D (XXXX) (48 DS3s, each) 0.4700 $ 29.38 $ 4,773.79 (3) OC-12 (XXXX) (36 DS3s or XX OC-3s, each) 0.4700 $ 27.71 $ 4,503.54 (4) OC-48 (XXXX) (48 DS3s or 4 OC-12s, each) 0.4700 $ 36.14 $ 5,873.12

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 3 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (1) Basic Arrangement (Cont'd) (per arrangement) (d) Reliance Comm/Tec DISC*S (XXXX) (672 Voice Grade, each) 0.7400 $ 471.99 $ 76,693.60 (e) Tellabs TITAN 5500S (XXXX) (3,584 DS1s, each) 0.4700 $ 723.16 $117,352.89 (f) ADC SONEPLEX 2000 (XXXX) (112 DS1s or 84 DS1s and 1 DS3, each) 0.4700 $ 124.21 $ 20,225.04 (g) ALCATEL (1) LTS 1565 (XXXX) (36 DS3s, each) 1.0000 $1,220.78 $224,052.00 (2) 3X50 (XXXX) (336 DS1s or 24 DS3s, each) 1.0000 $ 197.51 $ 36,251.00 (h) NEC (1) IMT-150 (XXXX) (420 DS1s or 15 DS3s, each) 1.0000 $ 108.59 $ 19,932.00 (2) ITS-600 (36 DS3s or 12 OC3s, each) 1.0000 $ 120.73 $ 22,159.00

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 4 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (2) Array (a) Primary Array (1) AT&T DDM1000 (XXXX) (56 DS1s, each) 0.4700 $ 34.03 $ 5,529.55 (2) AT&T DDM2000 OC-3 (XXXX) (84 DS1s or 3 DS3s, each) (a) SONET Ring 0.4700 $ 200.62 $ 32,599.20 (b) Terminal 0.4700 $ 184.74 $ 30,017.96 (c) Linear Chain 0.4700 $ 309.82 $ 50,342.64 (3) AT&T DDM2000 OC-12 (XXXX) (12 DS3s or 4 OC-3s, each) (a) SONET Ring 0.4700 $ 318.40 $ 51,737.13 (b) Terminal 0.4700 $ 285.10 $ 46,326.02 (4) AT&T FT2000 OC-48 (XXXX) (48 DS3s or 8 OC-3s, each) 0.4700 $ 406.74 $ 66,090.93 (5) Fujitsu FLM150 OC-3 SONET Ring (XXXX) (84 DS1s or 3 DS3s, each) 0.4700 $ 351.92 $ 57,183.96 (6) Fujitsu FLM150 OC-3 Terminal (XXXX) (84 DS1s or 3 DS3s, each) 0.4700 $ 282.30 $ 45,870.12 (7) Fujitsu FLM150 OC-3 Linear Chain (XXXX) (84 DS1s or 3 DS3s, each) 0.4700 $ 280.04 $ 45,503.99 (8) Fujitsu FLM600 OC-12 SONET Ring (XXXX) (12 DS3s or 4 OC-3s, each) 0.4700 $ 430.09 $ 69,885.71 (9) Fujitsu FLM600 OC-12 Terminal (XXXX) (12 DS3s or 4 OC-3s, each) 0.4700 $ 430.09 $ 69,885.71 (10) Fujitsu FLM600 OC-12 Linear Chain (XXXX) (12 DS3s or 4 OC-3s, each) 0.4700 $ 579.07 $ 94,092.12 (11) Fujitsu FLM2400 OC-48 SONET Ring (XXXX) (48 DS3s or 4 OC-12s, each) 0.4700 $ 813.29 $132,151.78 (12) Fujitsu FLM2400 OC-48 SONET Ring (XXXX) (16 OC-3s, each) 0.4700 $ 813.29 $132,151.78 (13) Fujitsu FLM2400 OC-48 (1557nm) Terminal (XXXX) (48 DS3s, each) 1.0000 $2,507.98 $460,304.00

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 5 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (2) Array (Cont'd) (a) Primary Array (Cont'd) (14) Fujitsu FLM2400 OC-48 Terminal (XXXX) (48 DS3s or 4 OC-12s, each) 0.4700 $ 807.62 $131,228.70 (15) Fujitsu FLM2400 OC-48 Terminal (XXXX) (16 OC-3s, each) 0.4700 $ 807.62 $131,228.70 (16) Fujitsu FLM2400 OC-48 Linear Chain (XXXX) (48 DS3s or 4 OC-12s, each) 0.4700 $ 813.29 $132,151.78 (17) Fujitsu FLM2400 OC-48 Linear Chain (XXXX) (16 OC-3s, each) 0.4700 $ 813.29 $132,151.78 (18) Northern Telecom FMT150C (XXXX) (56 DS1s, each) 0.4700 $ 42.52 $ 6,901.01 (19) Northern Telecom FMT150D (XXXX) (6 DS3s, each) 0.4700 $ 122.12 $ 19,842.93 (20) Northern Telecom OC-12 (XXXX) (12 DS3s or 4 OC-3s, each) 0.4700 $ 659.28 $107,125.69 (21) Northern Telecom OC-48 (XXXX) (48 DS3s or 4 OC-12s, each) 0.4700 $1,893.24 $307,631.45 (22) Tellabs TITAN 5500S (XXXX) (448 DS1s or 64 DS3s, each) 0.4700 $ 26.14 $ 4,247.39 (23) ADC SONEPLEX 2000 (XXXX) (28 DS1s or 1 DS3, each) 0.4700 $ 41.05 $ 6,684.34 (24) ALCATEL LTS 1565 (XXXX) (12 DS3s, each) 1.0000 $ 595.04 $109,212.00 (25) ALCATEL 3X50 (XXXX) (28 DS1s or 3 DS3s, each) 1.0000 $ 460.72 $ 84,557.00 (26) NEC IMT-150 (XXXX) (84 DS1s or 3 DS3s, each) 1.0000 $ 268.45 $ 49,271.00 (27) NEC ITS-600 (XXXX) (12 DS3s or 4 OC-3s, each) 1.0000 $ 553.91 $101,663.00

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Supplement No. 64 Page 1 of 1

ACCESS SERVICE On June 18, 2012, SWBT issued its 2012 Annual Filing under Transmittal No. 3345 in SWBT Tariff F.C.C. No. 73. Transmittal No. 3345 was scheduled to become effective on July 3, 2012.

This supplement is filed pursuant to Wireline Competition Bureau’s Order (Order) DA12-1037, In the Matter of July 3, 2012 Annual Access Charge Tariff Filings, WCB/Pricing No. 12-09.

The aforementioned Order advances the currently scheduled effective date of Transmittal No. 3345 to July 2, 2012, and then suspends its tariff revision for one day, until July 3, 2012. For this purpose, the Order waives the following sections of the Commission’s Rules, 47 C.F.R. §§ 61.58, 61.59 and 61.86.

Listed are the affected tariff pages:

Page Revision No.

4-1 5th 4-2 6th 4-3 13th 4-5.1 5th 4-5.2 3rd 4-5.3 34th 4-6 45th 4-12.1 Original 4-12.2 Original 4-13 58th 4-14 53rd 4-15 34th

(This page filed under Transmittal No. 3348 )

Issued: July 9, 2012 Effective: July 10, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 65

ACCESS SERVICE This filing is made pursuant to the Bureau’s Suspension Order DA 13-2349 (Order), released December 9, 2013.

On November 25, 2013, SWBT issued its Transmittal No. 3383, which proposed to grandfather term plans of 60 months or greater for Voice Grade, MegaLink Data, High Capacity DS1, and MegaLink Custom services. Transmittal No. 3383 was scheduled to become effective on December 10, 2013.

The aforementioned Order suspends the tariff revision, filed under Transmittal No. 3383, for five months, to May 10, 2014. For this purpose, the Order waives the following sections of the Commission’s Rules, 47 C.F.R. §§ 61.58, 61.59 and 61.86.

Listed are the affected tariff pages:

Page No (Revision No) Page No (Revision No) Page No (Revision No) Page No (Revision No) 7-59 (7th) 7-115 (4th) 7-126.22 (3rd) 7-162 (3rd) 7-62.4 (2nd) 7-116 (4th) 7-126.23 (4th) 7-163 (3rd) 7-68.1 (11th) 7-117 (3rd) 7-126.24 (3rd) 7-164 (3rd) 7-68.2 (8th) 7-118 (3rd) 7-126.25 (7th) 7-165 (3rd) 7-68.3.1 (7th) 7-119 (4th) 7-126.26 (4th) 7-166 (3rd) 7-68.3.2 (6th) 7-120 (3rd) 7-126.29 (4th) 7-167 (3rd) 7-68.3.5 (3rd) 7-121 (3rd) 7-126.30 (4th) 7-168 (3rd) 7-89 (34th) 7-122 (4th) 7-126.31 (3rd) 7-169 (3rd) 7-90 (13th) 7-123 (3rd) 7-126.32 (3rd) 7-169.1 (4th) 7-92 (13th) 7-124 (3rd) 7-126.33 (3rd) 7-169.2 (4th) 7-93 (14th) 7-125 (4th) 7-126.34 (3rd) 7-169.3 (4th) 7-93.3 (5th) 7-126 (3rd) 7-126.35 (5th) 7-169.4 (3rd) 7-94.1 (7th) 7-126.1 (5th) 7-126.37 (3rd) 7-169.5 (3rd) 7-95 (15th) 7-126.2 (5th) 7-126.38 (3rd) 7-169.6 (3rd) 7-96 (9th) 7-126.3 (4th) 7-126.39 (3rd) 7-169.7 (4th) 7-97 (3rd) 7-126.4 (4th) 7-126.42 (3rd) 7-168.8 (4th) 7-98 (4th) 7-126.5 (5th) 7-126.43 (3rd) 7-169.9 (3rd) 7-99 (3rd) 7-126.6 (3rd) 7-126.44 (3rd) 7-169.10 (4th) 7-100 (3rd) 7-126.7 (6th) 7-126.45 (3rd) 7-169.11 (4th) 7-101 (4th) 7-126.8 (6th) 7-126.46 (3rd) 7-169.12 (4th) 7-102 (3rd) 7-126.9 (5th) 7-126.47 (3rd) 7-169.13 (5th) 7-103 (3rd) 7-126.10 (5th) 7-126.48 (3rd) 7-169.14 (5th) 7-104 (4th) 7-126.11 (6th) 7-126.50 (3rd) 7-169.15 (5th) 7-105 (3rd) 7-126.12 (5th) 7-152.1 (10th) 7-169.16 (5th) 7-106 (3rd) 7-126.13 (4th) 7-153.2 (10th) 7-169.17 (5th) 7-107 (4th) 7-126.14 (5th) 7-154 (14th) 7-169.18 (5th) 7-108 (3rd) 7-126.15 (4th) 7-155 (3rd) 7-169.19 (6th) 7-109 (3rd) 7-126.16 (4th) 7-156 (3rd) 7-169.22 (5th) 7-110 (4th) 7-126.17 (5th) 7-157 (3rd) 7-169.23 (5th) 7-111 (3rd) 7-126.18 (4th) 7-158 (3rd) 7-169.24 (5th) 7-112 (3rd) 7-126.19 (3rd) 7-159 (3rd) 7-169.25 (3rd) 7-113 (4th) 7-126.20 (4th) 7-160 (3rd) 7-169.26 (3rd) 7-114 (3rd) 7-126.21 (3rd) 7-161 (3rd) 7-169.29 (3rd)

(This page filed under Transmittal No. 3384 )

Issued: December 12, 2013 Effective: December 17, 2013

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 65.1

ACCESS SERVICE

Listed are the affected tariff pages: (Cont’d)

Page No (Revision No) Page No (Revision No) Page No (Revision No) Page No (Revision No) 7-169.30 (3rd) 20-47.15 (24th) 20-47.61 (4th) 39-188 (3rd) 7-169.31 (3rd) 20-47.16 (23rd) 39-36 (4th) 39-189 (3rd) 7-169.32 (3rd) 20-47.17 (27th) 39-37 (4th) 39-190 (3rd) 7-169.33 (5th) 20-47.21 (11th) 39-40 (3rd) 39-191 (2nd) 7-169.36 (5th) 20-47.22 (10th) 39-41 (3rd) 39-192 (2nd) 7-169.37 (5th) 20-47.23 (10th) 39-42 (3rd) 39-193 (2nd) 7-169.38 (3rd) 20-47.24 (10th) 39-43 (3rd) 39-194 (2nd) 7-169.39 (3rd) 20-47.28 (9th) 39-44 (3rd) 39-195 (2nd) 7-169.40 (3rd) 20-47.29 (9th) 39-45 (3rd) 39-196 (2nd) 7-169.43 (3rd) 20-47.30 (9th) 39-46 (3rd) 39-202.1 (2nd) 7-169.44 (3rd) 20-47.31 (11th) 39-48 (3rd) 39-202.2 (2nd) 7-169.45 (3rd) 20-47.32 (12th) 39-59 (6th) 39-202.3 (2nd) 7-169.46 (3rd) 20-47.33 (9th) 39-62 (5th) 39-202.4 (2nd) 7-189.54 (5th) 20-47.34 (8th) 39-63 (6th) 39-202.5 (2nd) 7-189.55 (3rd) 20-47.35 (8th) 39-64 (3rd) 39-202.6 (2nd) 20-16 (13th) 20-47.36 (5th) 39-65 (3rd) 39-202.7 (1st) 20-32 (6th) 20-47.37 (3rd) 39-124.2 (3rd) 39-202.8 (2nd) 20.38.1 (3rd) 20-47.38 (3rd) 39-124.13 (2nd) 39-202.9 (1st) 20-42 (29th) 20-47.39 (4th) 39-165 (4th) 39-202.10(1st) 20-42.1 (13th) 20-47.40 (4th) 39-166 (4th) 39-202.11 (1st) 20-43 (28th) 20-47.41 (4th) 39-167 (4th) 39-202.12 (1st) 20-44 (26th) 20-47.42 (4th) 39-171 (2nd) 39-202.13 (2nd) 20-45 (22nd) 20-47.50 (5th) 39-172 (2nd) 39-202.14 (1st) 20-47.2 (17th) 20-47.51 (5th) 39-173 (2nd) 39-202.15 (2nd) 20-47.3 (16th) 20-47.52 (5th) 39-174 (2nd) 20-47.4 (15th) 20-47.53 (5th) 39-175 (2nd) 20-47.5 (18th) 20-47.54 (3rd) 39-176 (2nd) 20-47.6 (14th) 20-47.55 (3rd) 39-177 (2nd) 20-47.7 (18th) 20-47.56 (3rd) 39-178 (2nd) 20-47.8 (18th) 20-47.57 (3rd) 39-179 (2nd) 20-47.9 (16th) 20-47.58 (4th) 39-180 (2nd) 20-47.13 (24th) 20-47.59 (4th) 39-181 (2nd) 20-47.14 (25th) 20-47.60 (4th) 39-182 (2nd)

(This page filed under Transmittal No. 3384 )

Issued: December 12, 2013 Effective: December 17, 2013

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Supplement No. 66

ACCESS SERVICE This filing is made pursuant to the Bureau’s Suspension Order DA 16-805 (Order), released July 15, 2016.

On July 1, 2016, SWBT issued its Transmittal No. 3428, which proposed to grandfather the DS1 High Capacity Service Portability Commitment and discontinue renewals. The DS1 High Capacity Service Portability Commitment was to continue to be available to existing subscribers for the remainder of each subscriber’s 3-year commitment term. Additionally, SWBT proposed to remove the current charges for calculation of shortfall and early termination charges and replace those with a lower charge. Transmittal No. 3428 was scheduled to become effective on July 16, 2016.

The aforementioned Order DA 16-805 advances the currently scheduled effective date for this tariff revision, filed under Transmittal No. 3428, to July 15, 2016, and then suspends it for one date until July 16, 2016. For this purpose, Order DA 16-805 waives the following sections of the Commission’s Rules, 47 C.F.R. §§ 61.58, 61.59 and 61.86. Listed are the affected tariff pages:

Page Revision No.

7-68.3.1 9th 7-68.3.2 8th 7-68.3.3 5th 7-68.3.4 4th

(This page filed under Transmittal No. 3430 )

Issued: July 19, 2016 Effective: July 16, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 9 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (3) Termination Cards (per card) (a) AT&T DDM1000 (XXXX) (4 DS1s, each) 0.5900 $ 11.09 first 4 DS1s $ 1,864.40 additional 4 DS1s $ 1,847.88 (b) AT&T DDM2000 OC-3 (XXXX) (1) 4 DS1s (SONET Ring) 0.6000 $ 5.63 first 4 DS1s $ 766.57 additional 4 DS1s $ 753.41 (2) 4 DS1s (Terminal and Linear Chain) 0.6000 $ 5.63 first 4 DS1s $ 978.60 additional 4 DS1s $ 961.80 (3) 1 DS3 0.4700 $ 10.32 first DS3 $ 1,768.14 additional DS3 $ 1,746.99 (c) AT&T DDM2000 OC-12 (XXXX) (1) 3 DS3s 0.4700 $ 34.05 first 3 DS3s $ 5,624.02 additional 3 DS3s $ 5,603.34 (2) 1 OC-3 0.4700 $ 28.54 first OC-3 $ 4,727.73 additional OC-3 $ 4,707.05 (d) AT&T FT2000 OC-48 (XXXX) (1) 3 DS3s 0.4700 $ 39.79 first 3 DS3s $ 6,556.97 additional 3 DS3s $ 6,535.82 (2) 1 OC-3 0.4700 $ 43.90 first OC-3 $ 7,224.84 additional OC-3 $ 7,203.69

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 10 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (3) Termination Cards (Cont'd) (per card) (e) Fujitsu FLM150 OC-3 (XXXX) (1) 4 DS1s 0.6000 $ 10.09 first 4 DS1s $ 1,755.60 additional 4 DS1s $ 1,728.60 (2) 1 DS3 0.4700 $ 10.41 first DS3 $ 1,781.77 additional DS3 $ 1,760.62 (f) Fujitsu FLM600 OC-12 (XXXX) (1) 3 DS3s 0.4700 $ 15.81 first 3 DS3s $ 2,658.79 additional 3 DS3s $ 2,638.11 (2) 1 OC-3 0.4700 $ 19.09 first OC-3 $ 3,193.18 additional OC-3 $ 3,172.50 (g) Fujitsu FLM2400 OC-48 (XXXX) (1) 3 DS3s 0.4700 $ 13.38 first 3 DS3s $ 2,264.46 additional 3 DS3s $ 2,243.31 (2) 1 OC-3 0.4700 $ 19.09 first OC-3 $ 3,193.18 additional OC-3 $ 3,172.50 (3) 1 OC-12 0.4700 $ 71.84 first OC-12 $ 11,764.57 additional OC-12 $ 11,743.42 (h) Fujitsu FLM2400 OC-48 (1557 nm) (XXXX) (3 DS3s) 1.0000 $ 28.46 first 3 DS3s $ 4,818.00 additional 3 DS3s $ 4,773.00

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 11 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (3) Termination Cards (Cont'd) (per card) (i) Northern Telecom FMT150C (XXXX) (4 DS1s, each) 0.6000 $ 10.03 first 4 DS1s $ 1,691.40 additional 4 DS1s $ 1,674.60 (j) Northern Telecom FMT150D (XXXX) (1 DS3) 0.4700 $ 13.35 first DS3 $ 2,260.70 additional DS3 $ 2,239.55 (k) Northern Telecom OC-12 (XXXX) (1) 3 DS3s 0.4700 $ 32.43 first 3 DS3s $ 5,359.41 additional 3 DS3s $ 5,338.73 (2) 1 OC-3 0.4700 $ 21.19 first OC-3 $ 3,534.40 additional OC-3 $ 3,513.25 (l) Northern Telecom OC-48 (XXXX) (1) 3 DS3 0.4700 $ 32.43 first 3 DS3 $ 5,360.35 additional 3 DS3 $ 5,339.20 (2) 1 OC-12 0.4700 $ 70.41 first OC-12 $ 11,531.45 additional OC-12 $ 11,510.30 (m) Reliance Comm/Tec (XXXX) (2 Voice Grade) 0.7400 $ 1.02 first 2 Voice Grade $ 244.20 additional 2 Voice Grade $ 223.48

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 12 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (3) Termination Cards (Cont'd) (per card) (n) Tellabs TITAN 5500S (XXXX) (1) 4 DS1s 0.6000 $ 9.16 first 4 DS1s $ 1,551.60 additional 4 DS1s $ 1,534.80 (2) 1 DS3 0.4700 $ 18.03 first DS3 $ 3,020.69 additional DS3 $ 3,000.01 (o) ADC SONEPLEX 2000 (XXXX) (1) 1 DS1 0.6000 $ 1.74 first DS1 $ 399.00 additional DS1 $ 372.00 (2) 1 DS3 0.4700 $ 15.76 first DS3 $ 2,657.38 additional DS3 $ 2,636.23 (p) ALCATEL LTS 1565 (XXXX) (1 DS3) 1.0000 $ 23.96 first DS3 $ 4,591.00 additional DS3 $ 4,546.00 (q) ALCATEL 3X50 (XXXX) (1) 4 DS1s 1.0000 $ 14.95 first 4 DS1s $ 2,937.00 additional 4 DS1s $ 2,893.00 (2) 1 DS3 1.0000 $ 19.18 first DS3 $ 3,714.00 additional DS3 $ 3,669.00

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 13 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (A) Designated Equipment (Cont'd) (3) Termination Cards (Cont'd) (per card) (r) NEC IMT-150 (XXXX) (1) 4 DS1s 1.0000 $ 4.91 first 4 DS1s $ 1,094.00 additional 4 DS1s $ 1,050.00 (2) 1 DS3 1.0000 $ 11.52 first DS3 $ 2,307.00 additional DS3 $ 2,262.00 (s) NEC ITS-600 (XXXX) (1) 3 DS3s 1.0000 $ 15.77 first 3 DS3s $ 3,087.00 additional 3 DS3s $ 3,042.00 (2) 1 OC3 1.0000 $ 35.67 first OC3 $ 6,739.00 additional OC3 $ 6,695.00 (B) Entrance Cable (1) Entrance Cable (XXXX) (per cable) 0.4700 $ 13.09 $ 308.79 (2) Splice Case (XXXX) (per splice case) 0.4700 $ 3.86 $ 627.45 (3) Riser Tail (XXXX) (per tail) 0.4700 $ 59.84 $ 9,722.89 (C) Interconnection Cross Connect (per cross connect) (1) DS3 (SP1A3,SP1B3) 0.800 $ 37.06 (2) DS1 (SP1A1,SP1B1) 1.000 $ 4.64

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 14 of 16

ACCESS SERVICE

Rate Adjustment Rate per Nonrecurring Factor Month Charge (D) Nondesignated Conversion Arrangement (per arrangement) (1) DS3 to DS1 (XXXX,XXXX) 0.5100 $ 415.65 1.0000 $ 202.00 (2) DS1 to Voice Grade (XXXX,XXXX) 0.4700 $ 212.27 1.0000 $ 0.00 (3) DS1 to DS0 (XXXX,XXXX) 0.4700 $ 212.27 1.0000 $ 0.00 (E) Switched Transport Connection (per switched transport connection) (CXCFX) 0.5800 $ 3.50 $ 0.00 (F) Engineering Design Charge 1.0000 $ 398.00 (G) Additional Labor (a) Engineer 1st Half Hour 1.0000 $ 29.62 Additional Half Hour 1.0000 $ 29.62 (b) Technician First Half Hour 1.0000 $ 19.87 Additional Half Hour 1.0000 $ 19.87

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 15 of 16

ACCESS SERVICE

In compliance with the Bureau's Order in CC Docket No. 94-97 released December 9, 1994 and under authority of DA94-1421, the following Expanded Interconnection tariff revisions filed under Transmittal No. 2410 were suspended for one day to December 15, 1994. Number of Revision Except as Page Indicated 25-10 5th 25-21 8th The Expanded Interconnection revisions found on the following tariff pages became effective December 15, 1994: Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 31.1 5th 5-12.1 2nd 25-14.2 4th 32 4th 5-14 2nd 25-14.3 2nd 36 4th 5-17.1 6th 25-14.4 2nd 41 4th 5-17.2 8th 25-14.5 1st 2-3 8th 5-17.3 3rd 25-15 4th 2-4 5th 5-17.4 1st 25-16 5th 2-6 5th 5-17.5 1st 25-16.1 5th 2-8 4th 5-17.6 1st 25-17 5th 2-45.2 8th 5-18 4th 25-17.1 4th 2-45.3 8th 5-19 2nd 25-18 4th 2-45.4 10th 5-20 4th 25-18.1 4th 2-45.5 5th 5-25 5th 25-18.2 4th 2-45.6 1st 5-26 2nd 25-18.3 2nd 2-52.7 2nd 5-30 5th 25-19 8th 2-52.8 4th 5-31 3rd 25-20 12th 2-52.9 2nd 5-35 5th 25-20.1 7th 2-52.10 2nd 6-6 6th 25-20.2 1st 2-79.1 3rd 6-165.1 6th 25-21.1 5th 2-79.2 4th 25-1 7th 25-22 4th 2-80 2nd 25-2 4th 25-23 4th 2-94 2nd 25-2.1 1st 25-24 10th 2-100 3rd 25-3 4th 25-25 5th 2-103 3rd 25-4 6th 25-25.1 4th 2-104 5th 25-5 4th 25-26 4th 2-110 2nd 25-6 3rd 25-27 3rd 2-114.1 2nd 25-7 3rd 25-27.1 3rd 2-115 4th 25-8 6th 25-28 5th 2-121 4th 25-9 3rd 25-29 3rd 5-1 11th 25-11 3rd 25-29.1 3rd 5-4 3rd 25-11.1 4th 25-29.2 1st 5-5.1 2nd 25-12 3rd 25-30 3rd 5-7 3rd 25-13 3rd 25-30.1 3rd 5-8 3rd 25-14 3rd 25-30.2 3rd 5-8.1 2nd 25-14.1 3rd 25-30.2.1 3rd 5-8.2 3rd

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 19 to TARIFF F.C.C. NO. 73 Cancels Supplement No. 16 Page 16 of 16

ACCESS SERVICE

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 25-30.3 5th 25-39 1st 25-30.4 6th 25-40 1st 25-30.5 7th 25-41 1st 25-30.5.1 1st 25-42 1st 25-30.6 1st 25-43 1st 25-30.7 1st 25-44 1st 25-30.8 7th 25-45 1st 25-30.8.1 1st 25-46 1st 25-30.9 5th 25-47 1st 25-30.10 3rd 25-48 1st 25-30.10.1 3rd 25-48.1 1st 25-30.10.2 1st 25-49 1st 25-30.11 7th 25-50 3rd 25.30.11.1 1st 25-51 1st 25-30.12 7th 25-52 1st 25-30.13 1st 25-53 1st 25-30.14 1st 25-54 1st 25-30.15 1st 25-55 1st 25-30.16 5th 25-56 1st 25-30.16.1 3rd 25-57 1st 25-30.17 5th 25-58 1st 25-30.18 5th 25-59 1st 25-30.19 9th 25-60 1st 25-30.19.1 1st 25-61 1st 25-30.19.2 1st 25-62 1st 25-30.20 1st 25-63 1st 25-30.21 3rd 25-64 1st 25-31 1st 25-65 1st 25-32 1st 25-66 1st 25-33 1st 25-67 1st 25-34 1st 25-68 1st 25-35 1st 25-36 1st 25-37 1st 25-38 1st

(This page filed under Transmittal No. 2429) Issued: February 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 18 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Order In the Matter of CC Docket No. 94-97 released January 12, 1995 and under authority of DA95-94, the following Expanded Interconnection tariff revisions filed under Transmittal No. 2413 are suspended for one day to January 15, 1995.

Number of Revision Except as Page Indicated 25-2 6th 25-13 5th 25-32.1 1st

(This page filed under Transmittal No. 2418) Issued: January 17, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 17 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Under authority of Special Permission No. 95-48 of the Federal Communications Commission, the effective date of the Advanced Carrier Identification Service (ACIS) Tariff and revisions to regulations found on the following tariff pages are being deferred to January 28, 1995. These tariff revisions were contained in Transmittal No. 2405 filed on December 2, 1994 to become effective January 16, 1995. Subsequently, the Telephone Company filed Transmittal No. 2408 to revise Transmittal No. 2405. Transmittal No. 2408 filed on December 9, 1994 and scheduled to become effective January 16, 1995, revised the Carrier Identification Feature (CIF) rate and modified supporting documentation. Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 8 3rd 6-20 2nd 6-149 3rd 10 3rd 6-21 3rd 6-150.2 3rd 2-3 9th 6-24 2nd 6-159 2nd 2-6 6th 6-27 3rd 6-209 10th 2-45.5 6th 6-28 2nd 6-210 2nd 2-45.6 2nd 6-32 2nd 6-211 2nd 2-45.7 Original 6-33 3rd 2-46 8th 6-35 4th 2-52.3 1st 6-36 4th 2-92 4th 6-37 2nd 2-113 2nd 6-45.1 1st 3-6 3rd 6-45.2 1st 3-8 1st 6-45.3 1st 3-9 1st 6-45.4 2nd 3-10 1st 6-45.5 1st 5-1 12th 6-45.6 2nd 5-17.6 2nd 6-45.7 2nd 5-17.7 Original 6-45.8 Original 6-1 3rd 6-45.9 Original 6-3 3rd 6-60 4th 6-4 4th 6-71 8th 6-10 3rd 6-97 3rd 6-13 4th 6-121 3rd 6-14 3rd 6-141.1 3rd 6-16 3rd 6-142 4th 6-17 3rd 6-143 5th 6-19 4th 6-148 4th

(This page filed under Transmittal No. 2417) Issued: January 13, 1995 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 1 of 13

ACCESS SERVICE

In compliance with the Bureau's Order in CC Docket No. 91-141 released December 9, 1994 and under authority of DA94-1421, the following Expanded Interconnection tariff revisions filed under Transmittal No. 2410 are suspended for one day to December 15, 1994.

Number of Revision Except as Page Indicated

25-10 5th 25-21 8th

In compliance with the Bureau's Order in CC Docket No. 91-141 released December 9, 1994, and Erratum released December 12, 1994 and under authority of DA94-1421, the Expanded Interconnection tariff revisions filed under Transmittal No. 2383, and revised under Transmittal Nos. 2388, 2392, 2397 and 2407, are being advanced for one day to December 14, 1994 and suspended for one day to December 15, 1994.

The tariff revisions are suspended in part. The entire rate is suspended for one day and the part of the rate that exceeds the rate levels designated in the Bureau Order in CC Docket No. 91-141 released December 9, 1994, is suspended for five months to May 15, 1995. Rates scheduled to become effective December 15, 1994 and employing the rate adjustment factors outlined in the Bureau's Order are revised as follows:

RATE ADJUSTMENT REVISED RECURRING RATE ELEMENTS FACTOR RATE

INTERCONNECTION CROSS CONNECT - DS1 , PER CKT 1.0000 $4.64 - DS3, PER CKT 0.8000 $37.06

SWITCHED TRANSPORT CONNECTION - PER TRANSPORT CONNECTION 0.5800 $3.50 NON-DESIGNATED CONVERSION ARRANGEMENTS - DS1 TO VG/DS0 (ELEC), PER ARRANGEMENT 0.4700 $212.27 - DS3 TO DS1 (ELEC), PER ARRANGEMENT 0.5100 $415.65 ENTRANCE CABLE - PER ENTRANCE CABLE 0.4700 $13.09 - PER SPLICE CASE 0.4700 $3.86 - PER RISER TAIL 0.4700 $59.84

DESIGNATED EQUIPMENT ARRANGEMENTS AT&T DDM-1000 ASYNCHRONOUS DS3 to DS1 SERVICE

- BASIC ARRANGEMENT (Max 336 DS1s) 0.4700 $12.15 - PRIMARY ARRAY ( 1 PER 56 DS1s) 0.4700 $34.03 - SECONDARY ARRAY ( 1 FOR 28 DS1s) 0.4700 $48.02 - TERMINATION CARD ( 1 PER 4 DS1s) 0.5900 $11.09

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 2 of 13

ACCESS SERVICE

RATE ADJUSTMENT REVISED RECURRING RATE ELEMENTS FACTOR RATE

AT&T DDM-2000 (OC-3) 1310nm - DS1 & DS3 SERVICE Sonet Ring Configuration - BASIC ARRANGEMENT (Max 504 DS1s /18 DS3s) 0.4700 $10.45 - PRIMARY ARRAY , PER 84 DS1s / 3 DS3s 0.4700 $200.62 - SECONDARY ARRAY (DS1) 1 PER 28 DS1s 0.4700 $34.19 - SECONDARY ARRAY (DS3) 1 PER DS3 0.4700 $18.46 - TERMINATION CARD (DS1), 1 PER 4 DS1s 0.6000 $5.63 - TERMINATION CARD (DS3), 1 PER DS3 0.4700 $10.32 Terminal Configuration - BASIC ARRANGEMENT (Max 504 DS1s /18 DS3s) 0.4700 $10.45 - PRIMARY ARRAY , PER 84 DS1s / 3 DS3s 0.4700 $184.74 - SECONDARY ARRAY (DS1) 1 PER 28 DS1s 0.4700 $34.19 - SECONDARY ARRAY (DS3) 1 PER DS3 0.4700 $18.46 - TERMINATION CARD (DS1), 1 PER 4 DS1s 0.6000 $5.63 - TERMINATION CARD (DS3), 1 PER DS3 0.4700 $10.32 Linear Chain Configuration - BASIC ARRANGEMENT (1 PER 504 DS1s or 18 DS3s) 0.4700 $10.45 - PRIMARY ARRAY , 1 PER 84 DS1s or 3 DS3s 0.4700 $309.82 - SECONDARY ARRAY (DS1) 1 PER 28 DS1s 0.4700 $34.19 - SECONDARY ARRAY (DS3) 1 PER DS3 0.4700 $18.46 - TERMINATION CARD (DS1), 1 PER 4 DS1s 0.6000 $5.63 - TERMINATION CARD (DS3), 1 PER DS3 0.4700 $10.32

AT&T DDM-2000 (OC-12) 1310nm - DS3 & OC3 SERVICE Sonet Ring Configuration - BASIC ARRANGEMENT (MAX 48 DS3s OR 16 OC3s) 0.4700 $10.48 - PRIMARY ARRAY (1 PER 12 DS3s OR 4 OC3s) 0.4700 $318.40 - SECONDARY ARRAY (DS3) 1 PER 3 DS3s 0.4700 $48.65 - SECONDARY ARRAY (OC3) 1 PER OC3 0.4700 $37.52 - TERMINATION CARD (DS3), 1 PER 3 DS3s 0.4700 $34.05 - TERMINATION CARD (OC3), 1 PER OC3 0.4700 $28.54 Terminal Configuration - BASIC ARRANGEMENT (Max 48 DS3s, 16 OC3s OR COMB) 0.4700 $10.48 - PRIMARY ARRAY (1 PER 12 DS3s, 4 OC3s OR COMB) 0.4700 $285.10 - SECONDARY ARRAY (DS3) 1 PER 3 DS3s 0.4700 $48.65 - SECONDARY ARRAY (OC3) 1 PER OC3 0.4700 $37.52 - TERMINATION CARD (DS3), 1 PER 3 DS3s 0.4700 $34.05 - TERMINATION CARD (OC3), 1 PER OC3 0.4700 $28.54

AT&T FT-2000 (OC-48) 1310nm - DS3 & OC3 SERVICE

Sonet Ring Configuration - BASIC ARRANGEMENT (MAX 48 DS3s OR 8 OC3s) 0.4700 $179.28 - PRIMARY ARRAY (1 PER 48 DS3s OR 8 OC3s OR COMB) 0.4700 $406.74 - SECONDARY ARRAY (DS3) 1 PER 3 DS3s 0.4700 $75.74 - SECONDARY ARRAY (OC3) 1 PER OC3 0.4700 $55.55 - TERMINATION CARD (DS3), 1 PER 3 DS3s 0.4700 $39.79 - TERMINATION CARD (OC3), 1 PER OC3 0.4700 $43.90

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 3 of 13

ACCESS SERVICE

RATE ADJUSTMENT REVISED RECURRING RATE ELEMENTS FACTOR RATE

FUJITSU FLM-150 (OC-3) 1310nm DS1 & DS3 SERVICE Sonet Ring Configuration - BASIC ARRANGEMENT (1 per 504 DS1s, 18 DS3s OR 0.4700 $10.01 COMB) - PRIMARY ARRAY (1 per 84 DS1s, 3 DS3s OR COMB) 0.4700 $351.92 - SECONDARY ARRAY (DS1) 1 PER 28 DS1s 0.4700 $21.96 - SECONDARY ARRAY (DS3) 1 PER DS3 0.4700 $14.49 - TERMINATION CARD (DS1) (1 PER 4 DS1s) 0.6000 $10.09 - TERMINATION CARD (DS3) (1 PER DS3) 0.4700 $10.41 Terminal Configuration - BASIC ARRANGEMENT (1 per 504 DS1s, 18 DS3s OR 0.4700 $10.01 COMB) - PRIMARY ARRAY (1 per 84 DS1s, 3 DS3s OR COMB) 0.4700 $282.30 - SECONDARY ARRAY (DS1) 1 PER 28 DS1s 0.4700 $21.96 - SECONDARY ARRAY (DS3) 1 PER DS3 0.4700 $14.49 - TERMINATION CARD (DS1) (1 PER 4 DS1s) 0.6000 $10.09 - TERMINATION CARD (DS3) (1 PER DS3) 0.4700 $10.41

Linear Chain Configuration - BASIC ARRANGEMENT (1 per 504 DS1s, 18 DS3s OR 0.4700 $10.01 COMB) - PRIMARY ARRAY (1 per 84 DS1s, 3 DS3s OR COMB) 0.4700 $280.04 - SECONDARY ARRAY (DS1) 1 PER 28 DS1s 0.4700 $21.96 - SECONDARY ARRAY (DS3) 1 PER DS3 0.4700 $14.49 - TERMINATION CARD (DS1) (1 PER 4 DS1s) 0.6000 $10.09 - TERMINATION CARD (DS3) (1 PER DS3) 0.4700 $10.41

FUJITSU FLM-600 (OC-12) 1310nm DS3/OC3 SERVICE Sonet Ring Configuration - BASIC ARRANGEMENT (MAX 72 DS3s, 24 OC3s OR COMB) 0.4700 $10.73 - PRIMARY DS3 ARRAY (1 PER 12 DS3s, 4 OC3s OR COMB) 0.4700 $430.09 - SECONDARY DS3 ARRAY (1 PER 3 DS3s) 0.4700 $23.36 - SECONDARY OC3 ARRAY (1 PER 2 OC3s) 0.4700 $58.26 - TERTIARY OC3 ARRAY (1 PER OC3) 0.4700 $19.09 - TERMINATION CARD (1 PER 3 DS3s) 0.4700 $15.81 - TERMINATION CARD (1 PER OC3) 0.4700 $19.09

Terminal Configuration - BASIC ARRANGEMENT (MAX 72 DS3s, 24 OC3s OR COMB) 0.4700 $10.73 - PRIMARY DS3 ARRAY (1 PER 12 DS3s, 4 OC3s OR COMB) 0.4700 $430.09 - SECONDARY DS3 ARRAY (1 PER 3 DS3s) 0.4700 $23.36 - SECONDARY OC3 ARRAY (1 PER 2 OC3s) 0.4700 $58.26 - TERTIARY OC3 ARRAY (1 PER OC3) 0.4700 $19.09 - TERMINATION CARD (1 PER 3 DS3s) 0.4700 $15.81 - TERMINATION CARD (1 PER OC3) 0.4700 $19.09

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 4 of 13

ACCESS SERVICE

RATE ADJUSTMENT REVISED RECURRING RATE ELEMENTS FACTOR RATE

FUJITSU FLM-2400 (OC-48) 1310nm DS3/OC12 SERVICE

Sonet Ring Configuration - BASIC ARRANGEMENT (1 PER 96 DS3s, 8 OC12s OR COMB) 0.4700 $9.15 - PRIMARY DS3 ARRAY (1 PER 48 DS3s, 4 OC12s OR COMB) 0.4700 $813.29 - SECONDARY ARRAY (1 PER 24 DS3s, 2 OC12s OR COMB) 0.4700 $77.08 - TERTIARY DS3 ARRAY (1 PER 12 DS3s) 0.4700 $20.60 - TERTIARY OC12 ARRAY (1 PER OC12) 0.4700 $148.52 - TERMINATION CARD (1 PER 3 DS3s) 0.4700 $13.38 - TERMINATION CARD (1 PER OC12) 0.4700 $71.84 Terminal Configuration - BASIC ARRANGEMENT (1 PER 96 DS3s, 8 OC12s OR COMB) 0.4700 $9.15 - PRIMARY DS3 ARRAY (1 PER 48 DS3s, 4 OC12s OR COMB) 0.4700 $807.62 - SECONDARY ARRAY (1 PER 24 DS3s, 2 OC12s OR COMB) 0.4700 $77.08 - TERTIARY DS3 ARRAY (1 PER 12 DS3s) 0.4700 $20.60 - TERTIARY OC12 ARRAY (1 PER OC12) 0.4700 $148.52 - TERMINATION CARD (1 PER 3 DS3s) 0.4700 $13.38 - TERMINATION CARD (1 PER OC12) 0.4700 $71.84 Linear Chain Configuration - BASIC ARRANGEMENT (1 PER 96 DS3s, 8 OC12s OR COMB) 0.4700 $9.15 - PRIMARY DS3 ARRAY (1 PER 48 DS3s, 4 OC12s OR COMB) 0.4700 $813.29 - SECONDARY ARRAY (1 PER 24 DS3s, 2 OC12s OR COMB) 0.4700 $77.08 - TERTIARY DS3 ARRAY (1 PER 12 DS3s) 0.4700 $20.60 - TERTIARY OC12 ARRAY (1 PER OC12) 0.4700 $148.52 - TERMINATION CARD (1 PER 3 DS3s) 0.4700 $13.38 - TERMINATION CARD (1 PER OC12) 0.4700 $71.84

FUJITSU FLM-2400 (OC-48) 1310nm OC3 SERVICE Sonet Ring Configuration - BASIC ARRANGEMENT (1 PER 16 OC3s) 0.4700 $9.15 - PRIMARY OC3 ARRAY (1 PER 16 OC3s) 0.4700 $813.29 - SECONDARY ARRAY (1 PER 4 OC3s) 0.4700 $398.68 - TERMINATION CARD (1 PER OC3) 0.4700 $19.09

Terminal Configuration - BASIC ARRANGEMENT (1 PER 16 OC3s) 0.4700 $9.15 - PRIMARY OC3 ARRAY (1 PER 16 OC3s) 0.4700 $807.62 - SECONDARY ARRAY (1 PER 4 OC3s) 0.4700 $398.68 - TERMINATION CARD (1 PER OC3) 0.4700 $19.09 Linear Chain Configuration - BASIC ARRANGEMENT (1 PER 16 OC3s) 0.4700 $9.15 - PRIMARY OC3 ARRAY (1 PER 16 OC3s) 0.4700 $813.29 - SECONDARY ARRAY (1 PER 4 OC3s) 0.4700 $398.68 - TERMINATION CARD (1 PER OC3) 0.4700 $19.09

NORTHERN TELECOM FMT 150C ASYNCH DS3 TO DS1 SVC - BASIC ARRANGEMENT (1 PER 448 DS1s) 0.4700 $29.28 - PRIMARY ARRAY ( 1 PER 56 DS1s) 0.4700 $42.52 - SECONDARY ARRAY ( 1 FOR 28 DS1s) 0.4700 $5.66 - TERMINATION CARD ( 1 PER 4 DS1s) 0.6000 $10.03

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 5 of 13

ACCESS SERVICE

RATE ADJUSTMENT REVISED RECURRING RATE ELEMENTS FACTOR RATE

TEL LABS TITAN 5500S DCC/MULTIPLEXER DS3 TO DS1 SVC - BASIC ARRANGEMENT (1 PER 3584 DS1s) 0.4700 $723.16 - PRIMARY ARRAY ( 1 per 448 DS1s, 64 DS3s or COMB) 0.4700 $26.14 - SECONDARY ARRAY (DS1) ( 1 FOR 112 DS1s) 0.4700 $124.95 - SECONDARY ARRAY (DS3) ( 1 FOR 16 DS3s) 0.4700 $145.11 - TERTIARY ARRAY (DS1/DS3) (1 per 896 DS1s,32 DS3s 0.4700 $33.39 or COMB) - TERTIARY ARRAY (DS1) ( 1 PER 28 DS1s) 0.4700 $8.18 - TERTIARY ARRAY (DS3) ( 1 PER 8 DS3s) 0.4700 $20.56 - TERMINATION CARD (DS1) ( 1 PER 4 DS1s) 0.6000 $9.16 - TERMINATION CARD (DS3) (1 PER DS3) 0.4700 $18.03

RELIANCE COMM/TEC DISC*S VG SERVICE - BASIC ARRANGEMENT (672 VG CKTS) 0.7400 $471.99 - TERMINATION CARDS (1 PER 2 VG CKTS) 0.7400 $1.02

NORTHERN TELECOM FMT 150D ASYNCH DS3 SVC

- BASIC ARRANGEMENT (1 per 48 DS3s) 0.4700 $29.38 - PRIMARY DS3 ARRAY ( 1 per 6 DS3s) 0.4700 $122.12 - SECONDARY ARRAY ( 1 per DS3) 0.4700 $14.72 - TERMINATION CARD ( 1 per DS3) 0.4700 $13.35

NORTHERN TELECOM S/DMS TRANSPORT NODE OC12 DS3/OC3 SVC - BASIC ARRANGEMENT (1 per 36 DS3s, 12 OC3s or 0.4700 $27.71 COMB) - PRIMARY DS3 ARRAY ( 1 per 12 DS3s or 4 OC3s or 0.4700 $659.28 COMB) - SECONDARY ARRAY (DS3) ( 1 per 12 DS3s) 0.4700 $78.70 - SECONDARY ARRAY (OC3) ( 1 per 4 OC3s) 0.4700 $51.43 - TERMINATION CARD (DS3) ( 1 per 3 DS3s) 0.4700 $32.43 - TERMINATION CARD (OC3) ( 1 per OC3) 0.4700 $21.19

NORTHERN TELECOM S/DMS TRANSPORT NODE OC48 DS3/OC12 SVC - BASIC ARRANGEMENT (1 per 48 DS3s, 4 OC12s or 0.4700 $36.14 COMB) - PRIMARY ARRAY ( 1 per 48 DS3s,4 OC12s or Comb) 0.4700 $1,893.24 - SECONDARY ARRAY (DS3) ( 1 per 48 DS3s) 0.4700 $36.87 - SECONDARY ARRAY (OC12) ( 1 per OC12) 0.4700 $80.03 - TERTIARY ARRAY (DS3) ( 1 per 24 DS3s) 0.4700 $9.82 - TERMINATION CARD (DS3) ( 1 per 3 DS3s) 0.4700 $32.43 - TERMINATION CARD (OC12) ( 1 per OC12) 0.4700 $70.41 SONEPLEX DS1/DS3 SVC

- BASIC ARRANGEMENT (1 per DS1 to 112 DS1s or 1 0.4700 $124.21 per 1DS1 to 84 DS1s and 1 DS3) - PRIMARY ARRAY ( 1 PER 28 DS1s and 1 per 1 DS3) 0.4700 $41.05 - SECONDARY ARRAY (DS1) ( 1 per 56 DS1s) 0.4700 $8.14 - SECONDARY ARRAY (DS3) ( 1 per 1 DS3) 0.4700 $7.91 - TERMINATION CARD (DS1) ( 1 per 1DS1) 0.6000 $1.74 - TERMINATION CARD (DS3) (1 per 1 DS3) 0.4700 $15.76

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 6 of 13

ACCESS SERVICE

RATE ADJUSTMENT REVISED NONRECURRING RATE ELEMENTS FACTOR RATE

NON-DESIGNATED CONVERSION ARRANGEMENTS - DS3 TO DS1 (ELEC), PER ARRANGEMENT 1.0000 $202.00 - DS1 TO VG/DS0 (ELEC), PER ARRANGEMENT 1.0000 $0.00

DESIGNATED EQUIPMENT ARRANGEMENTS ENTRANCE CABLE - PER ENTRANCE CABLE (splice case M/L) 0.4700 $308.79 - PER SPLICE CASE (expense only, MH to 0.4700 $627.45 vault) - PER RISER TAIL (FDF conn) 0.4700 $9,722.89

AT&T DDM-1000 ASYNCHRONOUS DS3 to DS1 SERVICE - BASIC ARRANGEMENT (Max 336 DS1s) 0.4700 $1,974.00 - PRIMARY ARRAY ( 1 PER 56 DS1s) 0.4700 $5,529.55 - SECONDARY ARRAY ( 1 FOR 28 DS1s) 0.4700 $7,802.94 - TERMINATION CARD ( 1 PER 4 DS1s) - FIRST 0.5900 $1,864.40 - TERMINATION CARD ( 1 PER 4 DS1s) - ADDTL 0.5900 $1,847.88

AT&T DDM-2000 (OC-3) 1310nm - DS1 & DS3 SERVICE Sonet Ring Configuration - BASIC ARRANGEMENT (Max 504 DS1s /18 DS3s) 0.4700 $1,697.64 - PRIMARY ARRAY , PER 84 DS1s / 3 DS3s 0.4700 $32,599.20 - SECONDARY ARRAY (DS1) 1 PER 28 DS1s 0.4700 $5,555.40 - SECONDARY ARRAY (DS3) 1 PER DS3 0.4700 $3,000.48 - TERMINATION CARD (DS1), 1 PER 4 DS1s - FIRST 0.4700 $766.57 - TERMINATION CARD (DS1), 1 PER 4 DS1s - ADDTL 0.4700 $753.41 - TERMINATION CARD (DS3), 1 PER DS3 - FIRST 0.4700 $1,768.14 - TERMINATION CARD (DS3), 1 PER DS3 - ADDTL 0.4700 $1,746.99 Terminal Configuration - BASIC ARRANGEMENT (Max 504 DS1s /18 DS3s) 0.4700 $1,697.64 - PRIMARY ARRAY , PER 84 DS1s / 3 DS3s 0.4700 $30,017.96 - SECONDARY ARRAY (DS1) 1 PER 28 DS1s 0.4700 $5,555.40 - SECONDARY ARRAY (DS3) 1 PER DS3 0.4700 $3,000.48 - TERMINATION CARD (DS1), 1 PER 4 DS1s - FIRST 0.6000 $978.60 - TERMINATION CARD (DS1), 1 PER 4 DS1s - ADDTL 0.6000 $961.80 - TERMINATION CARD (DS3), 1 PER DS3 - FIRST 0.4700 $1,768.14 - TERMINATION CARD (DS3), 1 PER DS3 - ADDTL 0.4700 $1,746.99

Linear Chain Configuration - BASIC ARRANGEMENT (1 PER 504 DS1s or 18 DS3s) 0.4700 $1,697.64 - PRIMARY ARRAY , 1 PER 84 DS1s or 3 DS3s 0.4700 $50,342.64

- SECONDARY ARRAY (DS1) 1 PER 28 DS1s 0.4700 $5,555.40 - SECONDARY ARRAY (DS3) 1 PER DS3 0.4700 $3,000.48 - TERMINATION CARD (DS1), 1 PER 4 DS1s - FIRST 0.6000 $978.60 - TERMINATION CARD (DS1), 1 PER 4 DS1s - ADDTL 0.6000 $961.80 - TERMINATION CARD (DS3), 1 PER DS3 - FIRST 0.4700 $1,768.14 - TERMINATION CARD (DS3), 1 PER DS3 - ADDTL 0.4700 $1,746.99

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 7 of 13

ACCESS SERVICE

RATE ADJUSTMENT REVISED NONRECURRING RATE ELEMENTS FACTOR RATE

AT&T DDM-2000 (OC-12) 1310nm - DS3 & OC3 SERVICE Sonet Ring Configuration - BASIC ARRANGEMENT (MAX 48 DS3s OR 16 OC3s) 0.4700 $1,703.28 - PRIMARY ARRAY (1 PER 12 DS3s OR 4 OC3s) 0.4700 $51,737.13 - SECONDARY ARRAY (DS3) 1 PER 3 DS3s 0.4700 $7,905.87 - SECONDARY ARRAY (OC3) 1 PER OC3 0.4700 $6,097.31 - TERMINATION CARD (DS3), 1 PER 3 DS3s - FIRST 0.4700 $5,624.02 - TERMINATION CARD (DS3), 1 PER 3 DS3s - ADDTL 0.4700 $5,603.34 - TERMINATION CARD (OC3), 1 PER OC3 - FIRST 0.4700 $4,727.73 - TERMINATION CARD (OC3), 1 PER OC3 - ADDTL 0.4700 $4,707.05

Terminal Configuration - BASIC ARRANGEMENT (Max 48 DS3s, 16 OC3s OR 0.4700 $1,703.28 COMBINATION) - PRIMARY ARRAY (1 PER 12 DS3s, 4 OC3s OR 0.4700 $46,326.02 COMBINATION) - SECONDARY ARRAY (DS3) 1 PER 3 DS3s 0.4700 $7,905.87 - SECONDARY ARRAY (OC3) 1 PER OC3 0.4700 $6,097.31 - TERMINATION CARD (DS3), 1 PER 3 DS3s - FIRST 0.4700 $5,624.02 - TERMINATION CARD (DS3), 1 PER 3 DS3s - ADDTL 0.4700 $5,603.34 - TERMINATION CARD (OC3), 1 PER OC3 - FIRST 0.4700 $4,727.73 - TERMINATION CARD (OC3), 1 PER OC3 - ADDTL 0.4700 $4,707.05

AT&T FT-2000 (OC-48) 1310nm - DS3 & OC3 SERVICE Sonet Ring Configuration - BASIC ARRANGEMENT (MAX 48 DS3s OR 8 OC3s) 0.4700 $29,132.01 - PRIMARY ARRAY (1 PER 48 DS3s OR 8 OC3s OR 0.4700 $66,090.93 COMBINATION) - SECONDARY ARRAY (DS3) 1 PER 3 DS3s 0.4700 $12,306.95 - SECONDARY ARRAY (OC3) 1 PER OC3 0.4700 $9,026.82 - TERMINATION CARD (DS3), 1 PER 3 DS3s - FIRST 0.4700 $6,556.97 - TERMINATION CARD (DS3), 1 PER 3 DS3s - ADDTL 0.4700 $6,535.82 - TERMINATION CARD (OC3), 1 PER OC3 - FIRST 0.4700 $7,224.84 - TERMINATION CARD (OC3), 1 PER OC3 - ADDTL 0.4700 $7,203.69

FUJITSU FLM-150 (OC-3) 1310nm DS1 & DS3 SERVICE Sonet Ring Configuration - BASIC ARRANGEMENT (1 PER 504 DS1s, 18 DS3s OR 0.4700 $1,627.14 COMB) - PRIMARY ARRAY (1 PER 84 DS1s, 3 DS3s OR COMB) 0.4700 $57,183.96 - SECONDARY ARRAY (DS1) 1 PER 28 DS1s 0.4700 $3,569.18 - SECONDARY ARRAY (DS3) 1 PER DS3 0.4700 $2,354.23 - TERMINATION CARD (DS1), 1 PER 4 DS1s - FIRST 0.4700 $1,375.22 - TERMINATION CARD (DS1), 1 PER 4 DS1s - ADDTL 0.6000 $1,728.60 - TERMINATION CARD (DS3), 1 PER DS3 - FIRST 0.6000 $2,274.60 - TERMINATION CARD (DS3), 1 PER DS3 - ADDTL 0.4700 $1,760.62 Terminal Configuration - BASIC ARRANGEMENT (1 PER 504 DS1s, 18 DS3s or 0.4700 $1,627.14 COMB) - PRIMARY ARRAY (1 PER 84 DS1s, 3 DS3s or COMB) 0.4700 $45,870.12 - SECONDARY ARRAY (DS1) 1 PER 28 DS1s 0.4700 $3,569.18 - SECONDARY ARRAY (DS3) 1 PER DS3 0.4700 $2,354.23 - TERMINATION CARD (DS1), 1 PER 4 DS1s - FIRST 0.4700 $1,375.22 - TERMINATION CARD (DS1), 1 PER 4 DS1s - ADDTL 0.6000 $1,728.60 - TERMINATION CARD (DS3), 1 PER DS3 - FIRST 0.6000 $2,274.60 - TERMINATION CARD (DS3), 1 PER DS3 - ADDTL 0.4700 $1,760.62

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 8 of 13

ACCESS SERVICE

RATE ADJUSTMENT REVISED NONRECURRING RATE ELEMENTS FACTOR RATE

Linear Chain Configuration - BASIC ARRANGEMENT (1 PER 504 DS1s, 18 DS3s or 0.4700 $1,627.14 COMB) - PRIMARY ARRAY (1 PER 84 DS1s, 3 DS3s OR COMB) 0.4700 $45,503.99

- SECONDARY ARRAY (DS1) 1 PER 28 DS1s 0.4700 $3,569.18 - SECONDARY ARRAY (DS3) 1 PER DS3 0.4700 $2,354.23 - TERMINATION CARD (DS1), 1 PER 4 DS1s - FIRST 0.4700 $1,375.22 - TERMINATION CARD (DS1), 1 PER 4 DS1s - ADDTL 0.6000 $1,728.60 - TERMINATION CARD (DS3), 1 PER DS3 - FIRST 0.6000 $2,274.60 - TERMINATION CARD (DS3), 1 PER DS3 - ADDTL 0.4700 $1,760.62

FUJITSU FLM-600 (OC-12) 1310nm DS3/OC3 SERVICE Sonet Ring Configuration - BASIC ARRANGEMENT (MAX 72 DS3s, 24 OC3s OR COMB) 0.4700 $1,744.64 - PRIMARY DS3 ARRAY (1 PER 12 DS3s, 4 OC3s OR COMB) 0.4700 $69,885.71 - SECONDARY DS3 ARRAY (1 PER 3 DS3s) 0.4700 $3,796.19 - SECONDARY OC3 ARRAY (1 PER 2 OC3s) 0.4700 $9,466.74 - TERTIARY OC3 ARRAY (1 PER OC3) 0.4700 $3,102.47 - TERMINATION CARD (DS3), 1 PER 3 DS3s - FIRST 0.4700 $2,658.79 - TERMINATION CARD (DS3), 1 PER 3 DS3s - ADDTL 0.4700 $2,638.11 - TERMINATION CARD (OC3), 1 PER OC3 - FIRST 0.4700 $3,193.18 - TERMINATION CARD (OC3), 1 PER OC3 - ADDTL 0.4700 $3,172.50 Terminal Configuration - BASIC ARRANGEMENT (MAX 72 DS3s, 24 OC3s OR COMB) 0.4700 $1,744.64 - PRIMARY DS3 ARRAY (1 PER 12 DS3s, 4 OC3s OR COMB) 0.4700 $69,885.71 - SECONDARY DS3 ARRAY (1 PER 3 DS3s) 0.4700 $3,796.19 - SECONDARY OC3 ARRAY (1 PER 2 OC3s) 0.4700 $9,466.74 - TERTIARY OC3 ARRAY (1 PER OC3) 0.4700 $3,102.47 - TERMINATION CARD (DS3), 1 PER 3 DS3s - FIRST 0.4700 $2,658.79 - TERMINATION CARD (DS3), 1 PER 3 DS3s - ADDTL 0.4700 $2,638.11 - TERMINATION CARD (OC3), 1 PER OC3 - FIRST 0.4700 $3,193.18 - TERMINATION CARD (OC3), 1 PER OC3 - ADDTL 0.4700 $3,172.50 Linear Chain Configuration - BASIC ARRANGEMENT (MAX 72 DS3s, 24 OC3s OR COMB) 0.4700 $1,744.64 - PRIMARY DS3 ARRAY (1 PER 12 DS3s, 4 OC3s OR COMB) 0.4700 $94,092.12 - SECONDARY DS3 ARRAY (1 PER 3 DS3s) 0.4700 $3,796.19 - SECONDARY OC3 ARRAY (1 PER 2 OC3s) 0.4700 $9,466.74 - TERTIARY OC3 ARRAY (1 PER OC3) 0.4700 $3,102.47 - TERMINATION CARD (DS3), 1 PER 3 DS3s - FIRST 0.4700 $2,658.79 - TERMINATION CARD (DS3), 1 PER 3 DS3s - ADDTL 0.4700 $2,638.11 - TERMINATION CARD (OC3), 1 PER OC3 - FIRST 0.4700 $3,193.18 - TERMINATION CARD (OC3), 1 PER OC3 - ADDTL 0.4700 $3,172.50 FUJITSU FLM-2400 (OC-48) 1310nm DS3/OC12 SERVICE

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 9 of 13

ACCESS SERVICE

RATE ADJUSTMENT REVISED NONRECURRING RATE ELEMENTS FACTOR RATE

Sonet Ring Configuration - BASIC ARRANGEMENT (1 PER 96 DS3s, 8 OC12s OR COMB) 0.4700 $1,487.08 - PRIMARY DS3 ARRAY (1 PER 48 DS3s, 4 OC12s OR COMB) 0.4700 $132,151.78 - SECONDARY ARRAY (1 PER 24 DS3s, 2 OC12s OR COMB) 0.4700 $12,525.50 - TERTIARY DS3 ARRAY (1 PER 12 DS3s) 0.4700 $3,346.87 - TERTIARY OC12 ARRAY (1 PER OC12) 0.4700 $24,133.56 - TERMINATION CARD (DS3), 1 PER 3 DS3s - FIRST 0.4700 $2,264.46 - TERMINATION CARD (DS3), 1 PER 3 DS3s - ADDTL 0.4700 $2,243.31 - TERMINATION CARD (OC12), 1 PER OC12 - FIRST 0.4700 $11,764.57 - TERMINATION CARD (OC12), 1 PER OC12 - ADDTL 0.4700 $11,743.42 Terminal Configuration - BASIC ARRANGEMENT (1 PER 96 DS3s, 8 OC12s OR COMB) 0.4700 $1,487.08 - PRIMARY DS3 ARRAY (1 PER 48 DS3s, 4 OC12s OR COMB) 0.4700 $131,228.70 - SECONDARY ARRAY (1 PER 24 DS3s, 2 OC12s OR COMB) 0.4700 $12,525.50 - TERTIARY DS3 ARRAY (1 PER 12 DS3s) 0.4700 $3,346.87 - TERTIARY OC12 ARRAY (1 PER OC12) 0.4700 $24,133.56 - TERMINATION CARD (DS3), 1 PER 3 DS3s - FIRST 0.4700 $2,264.46 - TERMINATION CARD (DS3), 1 PER 3 DS3s - ADDTL 0.4700 $2,243.31 - TERMINATION CARD (OC12), 1 PER OC12 - FIRST 0.4700 $11,764.57 - TERMINATION CARD (OC12), 1 PER OC12 - ADDTL 0.4700 $11,743.42 Linear Chain Configuration - BASIC ARRANGEMENT (1 PER 96 DS3s, 8 OC12s OR COMB) 0.4700 $1,487.08 - PRIMARY DS3 ARRAY (1 PER 48 DS3s, 4 OC12s OR COMB) 0.4700 $132,151.78 - SECONDARY ARRAY (1 PER 24 DS3s, 2 OC12s OR COMB) 0.4700 $12,525.50 - TERTIARY DS3 ARRAY (1 PER 12 DS3s) 0.4700 $3,346.87 - TERTIARY OC12 ARRAY (1 PER OC12) 0.4700 $24,133.56 - TERMINATION CARD (DS3), 1 PER 3 DS3s - FIRST 0.4700 $2,264.46 - TERMINATION CARD (DS3), 1 PER 3 DS3s - ADDTL 0.4700 $2,243.31 - TERMINATION CARD (OC12), 1 PER OC12 - FIRST 0.4700 $11,764.57 - TERMINATION CARD (OC12), 1 PER OC12 - ADDTL 0.4700 $11,743.42

FUJITSU FLM-2400 (OC-48) 1310nm OC3 SERVICE

Sonet Ring Configuration - BASIC ARRANGEMENT (1 PER 16 OC3s) 0.4700 $1,487.08 - PRIMARY OC3 ARRAY (1 PER 16 OC3s) 0.4700 $132,151.78 - SECONDARY ARRAY (1 PER 4 OC3s) 0.4700 $64,781.04 - TERMINATION CARD (1 PER OC3) - FIRST 0.4700 $3,193.18 - TERMINATION CARD (1 PER OC3) - ADDTL 0.4700 $3,172.50 Terminal Configuration - BASIC ARRANGEMENT (1 PER 16 OC3s) 0.4700 $1,487.08 - PRIMARY OC3 ARRAY (1 PER 16 OC3s) 0.4700 $131,228.70 - SECONDARY ARRAY (1 PER 4 OC3s) 0.4700 $64,781.04 - TERMINATION CARD (1 PER OC3) - FIRST 0.4700 $3,193.18 - TERMINATION CARD (1 PER OC3) - ADDTL 0.4700 $3,172.50 Linear Chain Configuration - BASIC ARRANGEMENT (1 PER 16 OC3s) 0.4700 $1,487.08 - PRIMARY OC3 ARRAY (1 PER 16 OC3s) 0.4700 $132,151.78 - SECONDARY ARRAY (1 PER 4 OC3s) 0.4700 $64,781.04 - TERMINATION CARD (1 PER OC3) - FIRST 0.4700 $3,193.18 - TERMINATION CARD (1 PER OC3) - ADDTL 0.4700 $3,172.50

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 10 of 13

ACCESS SERVICE

RATE ADJUSTMENT REVISED NONRECURRING RATE ELEMENTS FACTOR RATE

NORTHERN TELECOM FMT 150C ASYNCHRONOUS DS3 TO DS1 SERVICE - BASIC ARRANGEMENT (1 PER 448 DS1s) 0.4700 $4,752.17 - PRIMARY ARRAY ( 1 PER 56 DS1s) 0.4700 $6,901.01 - SECONDARY ARRAY ( 1 FOR 28 DS1s) 0.4700 $918.85 - TERMINATION CARD ( 1 PER 4 DS1s) - FIRST 0.6000 $1,691.40 - TERMINATION CARD ( 1 PER 4 DS1s) - ADDTL 0.6000 $1,674.60

TEL LABS TITAN 5500S DCC/MULTIPLEXER DS3 TO DS1 SERVICE - BASIC ARRANGEMENT (1 per 3584 DS1s) 0.4700 $117,352.89

- PRIMARY ARRAY ( 1 PER 448 DS1s, 64 DS3s OR COMB) 0.4700 $4,247.39 - SECONDARY ARRAY (DS1) ( 1 per 112 DS1s) 0.4700 $20,303.06 - SECONDARY ARRAY (DS3) ( 1 per 16 DS3s) 0.4700 $23,578.49 - TERTIARY ARRAY (DS1/DS3) (1 per 896 DS1s, 32 DS3s 0.4700 $5,426.15 or COMB) - TERTIARY ARRAY (DS1) ( 1 PER 28 DS1s) 0.4700 $1,329.63 - TERTIARY ARRAY (DS3) ( 1 PER 8 DS3s) 0.4700 $3,340.29 - TERMINATION CARD (DS1) ( 1 PER 4 DS1s) - 0.6000 $1,551.60 FIRST - TERMINATION CARD (DS1) ( 1 PER 4 DS1s) - 0.6000 $1,534.80 ADDTL - TERMINATION CARD (DS3) (1 PER DS3) - 0.4700 $3,020.69 FIRST - TERMINATION CARD (DS3) (1 PER DS3) - 0.4700 $3,000.01 ADDTL

RELIANCE COMM/TEC DISC*S VG SERVICE - BASIC ARRANGEMENT (672 VG CKTS) 0.7400 $76,693.60 - TERMINATION CARDS (1 PER 2 VG CKTS) - FIRST 0.7400 $244.20 - TERMINATION CARDS (1 PER 2 VG CKTS) - ADDTL 0.7400 $223.48 ENGINEERING DESIGN CHARGE - PER EQUIPMENT ORDER 1.0000 $398.00

ADDITIONAL LABOR CHARGE - ENGINEER , PER FIRST 1/2 HOUR 1.0000 $29.62 - ENGINEER , PER ADDTL 1/2 HOUR 1.0000 $29.62 - TECHNICIAN, PER FIRST 1/2 HOUR 1.0000 $19.87 - TECHNICIAN, PER ADDTL 1/2 HOUR 1.0000 $19.87 NORTHERN TELECOM FMT 150D ASYNCH DS3 SVC

- BASIC ARRANGEMENT (1 per 48 DS3s) 0.4700 $4,773.79 - PRIMARY DS3 ARRAY ( 1 per 6 DS3s) 0.4700 $19,842.93 - SECONDARY ARRAY ( 1 per DS3) 0.4700 $2,391.83 - TERMINATION CARD ( 1 per DS3) - FIRST 0.4700 $2,260.70 - TERMINATION CARD ( 1 per DS3) - ADDTL 0.4700 $2,239.55

NORTHERN TELECOM S/DMS TRANSPORT NODE OC12 DS3/OC3 SVC - BASIC ARRANGEMENT (1 per 36 DS3s, 12 OC3s or 0.4700 $4,503.54 COMB) - PRIMARY DS3 ARRAY ( 1 per 12 DS3s or 4 OC3s or 0.4700 $107,125.69 COMB) - SECONDARY ARRAY (DS3) ( 1 per 12 DS3s) 0.4700 $12,788.70 - SECONDARY ARRAY (OC3) ( 1 per 4 OC3s) 0.4700 $8,356.60 - TERMINATION CARD (DS3) (1 per 3 DS3s) - FIRST 0.4700 $5,359.41 - TERMINATION CARD (DS3) (1 per 3 DS3s) - ADDTL 0.4700 $5,338.73 - TERMINATION CARD (OC3) ( 1 per OC3) - FIRST 0.4700 $3,534.40 - TERMINATION CARD (OC3) ( 1 per OC3) - ADDTL 0.4700 $3,513.25

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 11 of 13

ACCESS SERVICE

RATE ADJUSTMENT REVISED NONRECURRING RATE ELEMENTS FACTOR RATE

NORTHERN TELECOM S/DMS TRANSPORT NODE OC48 DS3/OC12 SVC

- BASIC ARRANGEMENT (1 per 48 DS3s, 4 OC12s or 0.4700 $5,873.12 COMB) - PRIMARY ARRAY ( 1 per 48 DS3s,4 OC12s or Comb) 0.4700 $307,631.45 - SECONDARY ARRAY (DS3) ( 1 per 48 DS3s) 0.4700 $5,990.62 - SECONDARY ARRAY (OC12) ( 1 per OC12) 0.4700 $13,004.43 - TERTIARY ARRAY (DS3) ( 1 per 24 DS3s) 0.4700 $1,596.12 - TERMINATION CARD (DS3) (1 per 3 DS3s) - FIRST 0.4700 $5,360.35 - TERMINATION CARD (DS3) (1 per 3 DS3s) - ADDTL 0.4700 $5,339.20 - TERMINATION CARD (OC12) (1 per OC12) - FIRST 0.4700 $11,531.45 - TERMINATION CARD (OC12) (1 per OC12) - ADDTL 0.4700 $11,510.30

SONEPLEX DS1/DS3 SVC - BASIC ARRANGEMENT (1 per DS1 to 112 DS1s or 1 0.4700 $20,225.04 per 1DS1 to 84 DS1s and 1 DS3) - PRIMARY ARRAY ( 1 PER 28 DS1s and 1 per 1 DS3) 0.4700 $6,684.34 - SECONDARY ARRAY (DS1) ( 1 per 56 DS1s) 0.4700 $1,325.87 - SECONDARY ARRAY (DS3) ( 1 per 1 DS3) 0.4700 $1,288.27 - TERMINATION CARD (DS1) ( 1 per 1DS1) - FIRST 0.6000 $399.00 - TERMINATION CARD (DS1) ( 1 per 1DS1) - ADDTL 0.6000 $372.00 - TERMINATION CARD (DS3) (1 per 1 DS3) - FIRST 0.4700 $2,657.38 - TERMINATION CARD (DS3) (1 per 1 DS3) - ADDTL 0.4700 $2,636.23

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 12 of 13

ACCESS SERVICE

The Expanded Interconnection revisions found on the following tariff pages are scheduled to become effective December 15, 1994:

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

31.1 5th 5-12.1 2nd 25-14.2 4th 32 4th 5-14 2nd 25-14.3 2nd 36 4th 5-17.1 6th 25-14.4 2nd 41 4th 5-17.2 8th 25-14.5 1st 2-3 8th 5-17.3 3rd 25-15 4th 2-4 5th 5-17.4 1st 25-16 5th 2-6 5th 5-17.5 1st 25-16.1 5th 2-8 4th 5-17.6 1st 25-17 5th 2-45.2 8th 5-18 4th 25-17.1 4th 2-45.3 8th 5-19 2nd 25-18 4th 2-45.4 10th 5-20 4th 25-18.1 4th 2-45.5 5th 5-25 5th 25-18.2 4th 2-45.6 1st 5-26 2nd 25-18.3 2nd 2-52.7 2nd 5-30 5th 25-19 8th 2-52.8 4th 5-31 3rd 25-20 12th 2-52.9 2nd 5-35 5th 25-20.1 7th 2-52.10 2nd 6-6 6th 25-20.2 1st 2-79.1 3rd 6-165.1 6th 25-21.1 5th 2-79.2 4th 25-1 7th 25-22 4th 2-80 2nd 25-2 4th 25-23 4th 2-94 2nd 25-2.1 1st 25-24 10th 2-100 3rd 25-3 4th 25-25 5th 2-103 3rd 25-4 6th 25-25.1 4th 2-104 5th 25-5 4th 25-26 4th 2-110 2nd 25-6 3rd 25-27 3rd 2-114.1 2nd 25-7 3rd 25-27.1 3rd 2-115 4th 25-8 6th 25-28 5th 2-121 4th 25-9 3rd 25-29 3rd 5-1 11th 25-11 3rd 25-29.1 3rd 5-4 3rd 25-11.1 4th 25-29.2 1st 5-5.1 2nd 25-12 3rd 25-30 3rd 5-7 3rd 25-13 3rd 25-30.1 3rd 5-8 3rd 25-14 3rd 25-30.2 3rd 5-8.1 2nd 25-14.1 3rd 25-30.2.1 3rd 5-8.2 3rd

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 16 to TARIFF F.C.C. NO. 73 Page 13 of 13

ACCESS SERVICE

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

25-30.3 5th 25-39 1st 25-30.4 6th 25-40 1st 25-30.5 7th 25-41 1st 25-30.5.1 1st 25-42 1st 25-30.6 1st 25-43 1st 25-30.7 1st 25-44 1st 25-30.8 7th 25-45 1st 25-30.8.1 1st 25-46 1st 25-30.9 5th 25-47 1st 25-30.10 3rd 25-48 1st 25-30.10.1 3rd 25-48.1 1st 25-30.10.2 1st 25-49 1st 25-30.11 7th 25-50 3rd 25.30.11.1 1st 25-51 1st 25-30.12 7th 25-52 1st 25-30.13 1st 25-53 1st 25-30.14 1st 25-54 1st 25-30.15 1st 25-55 1st 25-30.16 5th 25-56 1st 25-30.16.1 3rd 25-57 1st 25-30.17 5th 25-58 1st 25-30.18 5th 25-59 1st 25-30.19 9th 25-60 1st 25-30.19.1 1st 25-61 1st 25-30.19.2 1st 25-62 1st 25-30.20 1st 25-63 1st 25-30.21 3rd 25-64 1st 25-31 1st 25-65 1st 25-32 1st 25-66 1st 25-33 1st 25-67 1st 25-34 1st 25-68 1st 25-35 1st 25-36 1st 25-37 1st 25-38 1st

(This page filed under Transmittal No. 2410)

Issued: December 13, 1994

One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 15 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE CHECK SHEET

Under authority of DA 94-1409 of the Federal Communications Commission, the Expanded Interconnection tariff revisions filed under Transmittal No. 2406 are suspended for one day to December 13, 1994. The Expanded Interconnection revisions found on the following tariff pages are scheduled to become effective December 13, 1994. Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 31.1 4th 5-17.1 5th 5-17.2 7th 25-1 6th 25-8 5th 25-14.2 3rd 25-15 3rd 25-20 11th 25-20.1 6th 25-20.2 Original 25-24 9th 25-27.1 2nd 25-29.1 2nd 25-29.2 Original 25-30.2.1 2nd 25-30.5 6th 25-30.5.1 Original 25-30.8 6th 25-30.10.1 2nd 25-30.10.2 Original 25-30.11 6th 25-30.12 6th 25-30.16.1 2nd 25-30.19 8th 25-30.19.1 Original 25-30.19.2 Original 25-50 2nd

(This page filed under Transmittal No. 2409) Issued: December 12, 1994 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 14 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE CHECK SHEET

Under authority of DA 94-1252 of the Federal Communications Commission, the Expanded Interconnection tariff revisions filed under Transmittal No. 2396 are suspended for one day to November 12, 1994. The Expanded Interconnection revisions found on the following tariff pages are scheduled to become effective November 12, 1994. Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 25-29.1 Original 25-30.4 5th 25-30.5 4th 25-30.10.1 Original 25-30.19 6th

(This page filed under Transmittal No. 2401) Issued: November 14, 1994 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 13 to TARIFF F.C.C. NO. 73 Page 1 of 2

ACCESS SERVICE CHECK SHEET

Under authority of Special Permission No. 94-1012 of the Federal Communications Commission, the Expanded Interconnection tariff revisions filed under Transmittal No. 2382 are suspended for one day to September 4, 1994. The Expanded Interconnection revisions found on the following tariff pages are scheduled to become effective September 4, 1994. Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 31.1 2nd 5-12.1 1st 25-14.2 1st 32 3rd 5-14 1st 25-14.3 1st 36 3rd 5-17.1 3rd 25-14.4 1st 41 3rd 5-17.2 5th 25-14.5 Original 2-3 7th 5-17.3 2nd 25-15 1st 2-4 4th 5-17.4 Original 25-16 4th 2-6 4th 5-17.5 Original 25-16.1 4th 2-8 3rd 5-17.6 Original 25-17 4th 2-45.2 7th 5-18 3rd 25-17.1 3rd 2-45.3 7th 5-19 1st 25-18 3rd 2-45.4 9th 5-20 3rd 25-18.1 3rd 2-45.5 4th 5-25 4th 25-18.2 3rd 2-45.6 Original 5-26 1st 25-18.3 1st 2-52.7 1st 5-30 4th 25-19 7th 2-52.8 3rd 5-31 2nd 25-20 7th 2-52.9 1st 5-35 4th 25-20.1 2nd 2-52.10 1st 6-6 5th 25-21 4th 2-79.1 2nd 6-165.1 5th 25-21.1 2nd 2-79.2 3rd 25-1 2nd 25-22 3rd 2-80 1st 25-2 3rd 25-23 3rd 2-94 1st 25-2.1 Original 25-24 7th 2-100 2nd 25-3 3rd 25-25 4th 2-103 2nd 25-4 5th 25-25.1 3rd 2-104 4th 25-5 3rd 25-26 1st 2-110 1st 25-6 2nd 25-27 Original 2-114.1 1st 25-7 2nd 25-28 Original 2-115 3rd 25-8 3rd 25-29 Original 2-121 3rd 25-9 2nd 25-30 Original 5-1 10th 25-10 3rd 25-30.1 Original 5-4 2nd 25-11 2nd 25-30.2 Original 5-5.1 1st 25-11.1 3rd 25-30.3 Original 5-7 2nd 25-12 2nd 25-30.4 Original 5-8 2nd 25-13 2nd 25-30.5 Original 5-8.1 1st 25-14 2nd 25-30.6 Original 5-8.2 2nd 25-14.1 2nd 25-30.7 Original

(This page filed under Transmittal No. 2384) Issued: September 2, 1994 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 13 to TARIFF F.C.C. NO. 73 Page 2 of 2

ACCESS SERVICE CHECK SHEET

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 25-30.8 Original 25-58 Original 25-30.9 Original 25-59 Original 25-30.10 Original 25-60 Original 25-30.11 Original 25-61 Original 25-30.12 Original 25-62 Original 25-30.13 Original 25-63 Original 25-30.14 Original 25-64 Original 25-30.15 Original 25-65 Original 25-30.16 Original 25-66 Original 25-30.17 Original 25-67 Original 25-30.18 Original 25-68 Original 25-30.19 Original 25-30.20 Original 25-30.21 Original 25-31 Original 25-32 Original 25-33 Original 25-34 Original 25-35 Original 25-36 Original 25-37 Original 25-38 Original 25-39 Original 25-40 Original 25-41 Original 25-42 Original 25-43 Original 25-44 Original 25-45 Original 25-46 Original 25-47 Original 25-48 Original 25-48.1 Original 25-49 Original 25-50 Original 25-51 Original 25-52 Original 25-53 Original 25-54 Original 25-55 Original 25-56 Original 25-57 Original

(This page filed under Transmittal No. 2384) Issued: September 2, 1994 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 12 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Under authority of Special Permission No. 94-880 of the Federal Communications Commission, the effective date of the Diversity Tariff and revisions to regulations found on the following tariff pages are being deferred to August 16, 1994. These tariff revisions were contained in Transmittal No. 2337 on March 4, 1994 to become effective April 18, 1994. Subsequently, the Telephone Company filed Transmittal Nos. 2349, 2352 and 2359 to further defer Transmittal No. 2337 to April 28, 1994, June 2, 1994 and August 2, 1994, respectively. Transmittal No. 2363 filed June 17, 1994 proposed further modifications and was scheduled to become effective August 2, 1994. Number of Revision Except as Page Indicated 11 6th 31.2 4th 6-98.1 4th 7-1 4th 7-19 4th 11-1 5th 11-2 5th 11-3 5th 11-4 5th 11-5 5th 11-6 5th 11-7 5th 11-8 5th 11-9 6th 11-10 7th 11-11 7th 11-12 6th 11-13 6th 11-14 6th 11-15 6th 12-30 Original 12-31 Original 20-1 5th 20-15 4th 27-1 3rd 27-2 3rd 27-3 4th 27-4 3rd 27-5 3rd 27-6 3rd 27-7 4th 27-8 3rd

(This page filed under Transmittal No. 2375) Issued: August 1, 1994 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 11 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Common Carrier Bureau's Memorandum Opinion and Order Suspending Rates, In the Matter of 1994 Annual Access Tariff Filings, CC Docket No. 94-65 released June 24, 1994, orders the following: - tariff revisions including claims for exogenous treatment of OPEB amounts are suspended for one day, and are subject to the investigation of 1993 Annual Access Tariff Filings instituted in CC Docket No. 93-193. - tariff revisions that increased the fixed mileage charge for DS1 services with zero miles of interoffice transport are suspended for one day and are subject to the investigation in the Expanded Interconnection Tariff Order instituted in CC Docket No. 93-162. Under authority of DA 94-706, tariff revisions filed in Transmittal Nos. 2344, 2354 and 2364, reflecting the aforementioned issues, and found on the following tariff pages, are advanced one day to June 30, 1994, and than suspended one day to July 1, 1994. Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 3-20 15th 7-169.19 1st 19-98 Original 4-10 4th 7-169.20 1st 19-99 Original 4-11 4th 7-169.21 1st 19-100 Original 4-12 4th 7-169.22 1st 19-101 Original 6-179 15th 7-169.23 1st 19-102 Original 6-179.2 3rd 7-169.24 1st 20-42 9th 6-179.3 3rd 7-209.15 Original 20-43 8th 6-179.4 2nd 7-209.16 1st 20-44 8th 6-179.7 4th 7-209.17 Original 20-45 5th 6-184.1 2nd 7-209.18 Original 20-46 6th 6-185 16th 7-209.19 Original 20-47.1 2nd 6-208 8th 7-209.20 Original 20-47.2 2nd 6-209 8th 7-209.21 Original 20-47.3 2nd 6-210 1st 7-209.22 Original 20-47.4 2nd 6-211 1st 9-22 11th 20-47.5 2nd 7-92 6th 9-22.2 5th 20-47.7 2nd 7-93 6th 18-15 5th 20-47.8 2nd 7-126.19 Original 18-30 3rd 20-47.9 2nd 7-126.20 Original 19-88 Original 20-47.10 2nd 7-126.21 Original 19-89 Original 20-47.11 2nd 7-126.22 Original 19-90 Original 20-47.13 2nd 7-126.23 Original 19-91 Original 20-47.14 2nd 7-126.24 Original 19-92 Original 20-47.15 2nd 7-152 11th 19-93 Original 20-47.16 2nd 7-153 10th 19-94 Original 20-47.17 2nd 7-169.13 2nd 19-95 Original 25-18.2 2nd 7-169.14 2nd 19-96 Original 25-21 3rd 7-169.15 2nd 19-97 Original

(This page filed under Transmittal No. 2366) Issued: June 29, 1994 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 10 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Under authority of Special Permission No. 94-318 of the Federal Communications Commission, the effective date of the Rate Ranges revisions found on the following tariff pages are being deferred to April 16, 1994. These tariff revisions were contained in Transmittal No. 2316 which was originally filed December 17, 1993, to become effective February 2, 1994, and subsequently deferred to March 17, 1994, under Transmittal No. 2328. Number of Revision Except as Page Indicated 7-68 5th 7-152 9th 7-153 8th 7-153.1 Original 7-154 5th 7-154.1 Original 7-169.13 Original 7-169.14 Original 7-169.15 Original 7-169.16 Original 7-169.17 Original 7-169.18 Original

(This page filed under Transmittal No. 2339) Issued: March 16, 1994 One Bell Center, St. Louis, Missouri 63101

SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 8 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Under authority of Special Permission No. 94-138 of the Federal Communications Commission, the effective date of the Rate Ranges revisions found on the following tariff pages are being deferred to March 17, 1994. These tariff revisions were contained in Transmittal No. 2316 which was originally filed December 17, 1993, to become effective February 2, 1994. Number of Revision Except as Page Indicated 7-68 4th 7-152 9th 7-153 8th 7-153.1 Original 7-154 5th 7-154.1 Original 7-169.13 Original 7-169.14 Original 7-169.15 Original 7-169.16 Original 7-169.17 Original 7-169.18 Original

(This page filed under Transmittal No. 2328) Issued: February 1, 1994 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 7 to TARIFF F.C.C. NO. 73 Page 1 of 3

ACCESS SERVICE

Under authority of Special Permission No. 93-1212 of the Federal Communications Commission, the effective date of the Local Transport Restructure revisions contained in the following Sections: 2, 3, 5, 6, 7, 9, 10, 13, 16, 19, 20, 21, 23, 24, Table of Contents and Explanation of Abbreviations tariff pages, originally filed under Transmittal No. 2295, modified in Transmittal No. 2298, modified again in Transmittal Nos. 2299 and 2305, and deferred under Transmittal No. 2306, are being further deferred from December 30, 1993 to January 1, 1994. Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 8 2nd 2-90 1st 6-3 2nd 9 1st 2-91 1st 6-4 3rd 10 2nd 2-91.1 Original 6-6 3rd 35 Original 2-91.2 Original 6-7 1st 36 2nd 2-91.3 Original 6-7.1 Original 2-1 1st 2-91.4 Original 6-8 1st 2-7 3rd 2-119 2nd 6-10 2nd 2-35 5th 3-2 1st 6-13 3rd 2-41 7th 5-1 5th 6-16 2nd 2-45.1 3rd 5-3 1st 6-18 2nd 2-45.2 5th 5-4 1st 6-22 1st 2-45.3 5th 5-5 1st 6-31 1st 2-45.4 4th 5-5.1 Original 6-34 2nd 2-62 1st 5-6 2nd 6-39 2nd 2-63 2nd 5-7 1st 6-45.1 Original 2-64 1st 5-7.1 Original 6-45.2 Original 2-65 1st 5-8 1st 6-45.3 Original 2-65.1 Original 5-8.1 Original 6-45.4 Original 2-66 2nd 5-8.2 1st 6-45.5 Original 2-73 1st 5-8.4 Original 6-45.7 1st 2-78 3rd 5-10 2nd 6-46 1st 2-78.1 Original 5-12 1st 6-47 1st 2-78.2 Original 5-12.1 Original 6-48 1st 2-78.5 Original 5-20 1st 6-49 1st 2-78.6 Original 5-23 6th 6-50 2nd 2-78.7 Original 5-25 2nd 6-50.1 2nd 2-79 9th 5-27 2nd 6-50.2 1st 2-82 3rd 5-30 2nd 6-51 6th 2-84 2nd 5-34.3 3rd 6-52 6th 2-87 1st 6-1 2nd 6-53 5th 2-88 1st 6-2 1st 6-54 2nd 2-89 1st 6-2.1 Original 6-55 2nd

(This page filed under Transmittal No. 2321) Issued: December 23, 1993 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 7 to TARIFF F.C.C. NO. 73 Page 2 of 3

ACCESS SERVICE

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 6-56 5th 6-92 2nd 6-130 2nd 6-57 4th 6-93 2nd 6-130.1 1st 6-58 5th 6-94 2nd 6-130.2 Original 6-58.1 2nd 6-94.1 2nd 6-131 2nd 6-59 3rd 6-95 2nd 6-132 2nd 6-60 3rd 6-96 1st 6-133 4th 6-61 3rd 6-97 2nd 6-133.1 Original 6-62 3rd 6-98 2nd 6-134 2nd 6-63 3rd 6-98.1 Original 6-135 2nd 6-64 3rd 6-99 1st 6-136 3rd 6-65 5th 6-100 1st 6-137 1st 6-66 3rd 6-101 1st 6-138 1st 6-67 4th 6-102 1st 6-139 3rd 6-68 3rd 6-103 1st 6-140 4th 6-69 3rd 6-104 1st 6-140.3 Original 6-70 3rd 6-107 2nd 6-144 3rd 6-71 5th 6-108 2nd 6-145 1st 6-72 5th 6-109 3rd 6-146 1st 6-72.1 4th 6-110 2nd 6-147 1st 6-72.2 3rd 6-111 1st 6-148 3rd 6-72.3 4th 6-112 1st 6-149 2nd 6-73 1st 6-113 1st 6-149.1 Original 6-74 1st 6-114 1st 6-149.2 Original 6-75 1st 6-115 1st 6-149.5 1st 6-76 1st 6-116 1st 6-149.6 Original 6-77 1st 6-117 1st 6-150 2nd 6-78 1st 6-118 2nd 6-150.1 2nd 6-79 1st 6-118.1 Original 6-150.2 2nd 6-80 2nd 6-119 1st 6-151 1st 6-81 1st 6-120 1st 6-152 1st 6-82 1st 6-121 1st 6-153 2nd 6-83 3rd 6-122 1st 6-154 1st 6-84 1st 6-123 1st 6-155 2nd 6-85 1st 6-125 1st 6-155.1 1st 6-86 4th 6-126 1st 6-156 1st 6-87 3rd 6-126.1 Original 6-157 1st 6-87.1 1st 6-126.2 Original 6-158 1st 6-88 2nd 6-126.3 Original 6-159 1st 6-89 2nd 6-127 2nd 6-160 1st 6-90 2nd 6-128 1st 6-161 1st 6-91 2nd 6-129 2nd 6-162 1st

(This page filed under Transmittal No. 2321) Issued: December 23, 1993 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 7 to TARIFF F.C.C. NO. 73 Page 3 of 3

ACCESS SERVICE

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 6-163 1st 6-179.7 Original 9-7 1st 6-163.1 Original 6-180 5th 9-8 1st 6-163.2 Original 6-180.1 1st 9-10 1st 6-163.3 Original 6-181 4th 9-11 1st 6-163.4 Original 6-182 4th 9-13 1st 6-164 1st 6-183 4th 9-14 1st 6-165 4th 6-184 4th 9-15 1st 6-165.1 4th 6-184.1 1st 9-16 1st 6-166 1st 6-186 5th 9-17 1st 6-167 1st 6-187 4th 9-17.1 Original 6-168 1st 6-188 6th 9-17.2 Original 6-169 2nd 6-189 4th 9-17.3 Original 6-169.1 Original 6-190 4th 9-17.4 Original 6-170 2nd 6-191 4th 9-17.5 Original 6-171 1st 6-192 4th 9-19 1st 6-171.1 Original 6-193 4th 9-20 1st 6-172 1st 6-194 6th 9-21 1st 6-173 1st 6-194.1 4th 9-22 10th 6-173.1 Original 6-195 3rd 10-14 1st 6-173.2 Original 6-196 3rd 13-4 1st 6-173.3 Original 6-197 3rd 13-22.1 2nd 6-174 1st 6-198 3rd 13-22.2 2nd 6-175 1st 6-199 3rd 13-25 1st 6-176 1st 6-200 1st 13-26 1st 6-176.1 Original 6-201 3rd 13-26.1 Original 6-176.2 1st 6-202 2nd 16-7 1st 6-177 1st 6-203 2nd 16-8 1st 6-178 1st 6-204 2nd 16-9 1st 6-178.1 Original 6-205 3rd 16-11 1st 6-178.2 Original 6-206 4th 16-18 1st 6-178.3 Original 6-207 4th 16-19 1st 6-178.4 Original 6-210 Original 19-26 1st 6-178.5 Original 6-211 Original 19-28 1st 6-178.6 Original 7-46 1st 20-36 5th 6-178.7 Original 9-1 1st 21-7 1st 6-178.8 Original 9-2 1st 23-10 3rd 6-178.9 Original 9-4 1st 23-11 2nd 6-179.2 1st 9-5 1st 23-12 2nd 6-179.3 1st 9-5.1 Original 24-2 1st 6-179.4 Original 9-6 1st 24-17 2nd 6-179.6 Original

(This page filed under Transmittal No. 2321) Issued: December 23, 1993 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 6 to TARIFF F.C.C. NO. 73 Page 1 of 4

ACCESS SERVICE

Under authority of Special Permission No. 93-992 of the Federal Communications Commission, the effective date of the Local Transport Restructure revisions contained in the following Sections: 2, 3, 5, 6, 7, 9, 10, 13, 16, 19, 20, 21, 23, 24, Table of Contents and Explanation of Abbreviations tariff pages, originally filed under Transmittal No. 2295, modified in Transmittal No. 2298, modified again in Transmittal No. 2299 and further modified in Transmittal No. 2305 are being deferred from December 1, 1993 to December 30, 1993. On 1st Revised Page 2-71, the regulations specifying a date of December 1, 1993 should now read December 30, 1993 and on Original Revised Page 2-71, the regulations specifying dates December, 1993 and May, 1994 should now read January, 1994 and June, 1994 respectively. Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 8 2nd 2-78.4 Original 5-7.1 Original 9 1st 2-78.5 Original 5-8 1st 10 2nd 2-78.6 Original 5-8.1 Original 36 2nd 2-78.7 Original 5-8.2 1st 2-1 1st 2-79 9th 5-8.3 1st 2-7 3rd 2-82 3rd 5-9 3rd 2-35 3rd 2-84 2nd 5-10 2nd 2-41 5th 2-87 1st 5-12 1st 2-45.1 3rd 2-88 1st 5-12.1 Original 2-45.2 5th 2-89 1st 5-20 1st 2-45.3 4th 2-90 1st 5-23 6th 2-45.4 1st 2-91 1st 5-25 2nd 2-62 1st 2-91.1 Original 5-27 2nd 2-63 2nd 2-91.2 Original 5-30 2nd 2-64 1st 2-91.3 Original 6-1 2nd 2-65 1st 2-91.4 Original 6-2 1st 2-65.1 Original 2-119 2nd 6-2.1 Original 2-66 2nd 3-2 1st 6-3 2nd 2-71 1st 5-1 5th 6-4 3rd 2-71.1 Original 5-3 1st 6-6 2nd 2-73 1st 5-4 1st 6-7 1st 2-78 3rd 5-5 1st 6-7.1 Original 2-78.1 Original 5-5.1 Original 6-8 1st 2-78.2 Original 5-6 2nd 6-10 2nd 2-78.3 Original 5-7 1st 6-13 3rd

(This page filed under Transmittal No. 2306) Issued: November 17, 1993 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 6 to TARIFF F.C.C. NO. 73 Page 2 of 4

ACCESS SERVICE

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 6-16 2nd 6-67 4th 6-100 1st 6-18 2nd 6-68 3rd 6-101 1st 6-22 1st 6-69 3rd 6-102 1st 6-31 1st 6-70 3rd 6-103 1st 6-34 2nd 6-71 5th 6-104 1st 6-39 2nd 6-72 5th 6-105 1st 6-45.1 Original 6-72.1 4th 6-106 1st 6-45.2 Original 6-72.2 3rd 6-107 2nd 6-45.3 Original 6-72.3 4th 6-108 2nd 6-45.4 Original 6-73 1st 6-109 3rd 6-45.5 Original 6-74 1st 6-110 2nd 6-45.6 Original 6-75 1st 6-111 1st 6-45.7 1st 6-76 1st 6-112 1st 6-46 1st 6-77 1st 6-113 1st 6-47 1st 6-78 1st 6-114 1st 6-48 1st 6-79 1st 6-115 1st 6-49 1st 6-80 2nd 6-116 1st 6-50 2nd 6-81 1st 6-117 1st 6-50.1 1st 6-82 1st 6-118 2nd 6-50.2 1st 6-83 3rd 6-118.1 Original 6-50.3 Original 6-84 1st 6-119 1st 6-50.4 Original 6-85 1st 6-120 1st 6-51 6th 6-86 4th 6-121 1st 6-52 6th 6-87 3rd 6-122 1st 6-53 5th 6-87.1 1st 6-123 1st 6-54 2nd 6-88 2nd 6-124 1st 6-55 2nd 6-89 2nd 6-124.1 Original 6-56 5th 6-90 2nd 6-125 1st 6-57 4th 6-91 2nd 6-126 1st 6-58 5th 6-92 2nd 6-126.1 Original 6-58.1 2nd 6-93 2nd 6-126.2 Original 6-59 3rd 6-94 2nd 6-126.3 Original 6-60 3rd 6-94.1 2nd 6-127 2nd 6-61 3rd 6-95 2nd 6-128 1st 6-62 3rd 6-96 1st 6-129 2nd 6-63 3rd 6-97 2nd 6-130 2nd 6-64 3rd 6-98 2nd 6-130.1 1st 6-65 5th 6-98.1 Original 6-130.2 Original 6-66 3rd 6-99 1st 6-131 2nd

(This page filed under Transmittal No. 2306) Issued: November 17, 1993 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 6 to TARIFF F.C.C. NO. 73 Page 3 of 4

ACCESS SERVICE

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 6-132 2nd 6-160 1st 6-179.7 Original 6-133 4th 6-161 1st 6-180 5th 6-133.1 Original 6-162 1st 6-180.1 1st 6-134 2nd 6-163 1st 6-181 4th 6-135 2nd 6-163.1 Original 6-182 4th 6-136 3rd 6-163.2 Original 6-183 4th 6-137 1st 6-163.3 Original 6-184 4th 6-138 1st 6-163.4 Original 6-184.1 1st 6-139 3rd 6-164 1st 6-185 12th 6-140 4th 6-165 4th 6-186 5th 6-140.1 4th 6-165.1 3rd 6-187 4th 6-140.2 2nd 6-166 1st 6-188 6th 6-141 1st 6-167 1st 6-189 4th 6-142 2nd 6-168 1st 6-190 4th 6-143 3rd 6-169 2nd 6-191 4th 6-144 3rd 6-169.1 Original 6-192 4th 6-145 1st 6-170 2nd 6-193 4th 6-146 1st 6-171 1st 6-194 6th 6-147 1st 6-171.1 Original 6-194.1 4th 6-148 3rd 6-172 1st 6-195 3rd 6-149 2nd 6-173 1st 6-196 3rd 6-149.1 Original 6-173.1 Original 6-197 3rd 6-149.2 Original 6-173.2 Original 6-198 3rd 6-149.3 1st 6-173.3 Original 6-199 3rd 6-149.4 1st 6-173.4 1st 6-200 1st 6-149.5 1st 6-174 1st 6-201 3rd 6-150 2nd 6-175 1st 6-202 2nd 6-150.1 2nd 6-176 1st 6-203 2nd 6-150.2 2nd 6-176.1 Original 6-204 2nd 6-151 1st 6-176.2 1st 6-205 3rd 6-152 1st 6-177 1st 6-206 4th 6-153 2nd 6-178 1st 6-207 4th 6-154 1st 6-179 11th 6-208 5th 6-155 2nd 6-179.1 5th 6-209 5th 6-155.1 1st 6-179.2 1st 7-46 1st 6-156 1st 6-179.3 1st 9-1 1st 6-157 1st 6-179.4 Original 9-2 1st 6-158 1st 6-179.5 1st 9-4 1st 6-159 1st 6-179.6 Original 9-5 1st

(This page filed under Transmittal No. 2306) Issued: November 17, 1993 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 6 to TARIFF F.C.C. NO. 73 Page 4 of 4

ACCESS SERVICE

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 9-5.1 Original 23-10 3rd 9-6 1st 23-11 2nd 9-7 1st 23-12 2nd 9-8 1st 24-2 1st 9-10 1st 24-17 2nd 9-11 1st 9-13 1st 9-14 1st 9-15 1st 9-16 1st 9-17 1st 9-17.1 Original 9-17.2 Original 9-17.3 Original 9-17.4 Original 9-17.5 Original 9-19 1st 9-20 1st 9-21 1st 9-22 10th 9-22.1 Original 9-22.2 1st 10-14 1st 13-4 1st 13-22.1 2nd 13-22.2 2nd 13-25 1st 13-26 1st 13-26.1 Original 16-7 1st 16-8 1st 16-9 1st 16-11 1st 16-18 1st 16-19 1st 19-26 1st 19-28 1st 20-36 4th 21-7 1st

(This page filed under Transmittal No. 2306) Issued: November 17, 1993 One Bell Center, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 5 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau Order in CC Docket No. 93-162 released August 4, 1993, and under authority of Special Permission No. 93-659, the Expanded Interconnection tariff revisions filed under Transmittal No. 2285, are being advanced to August 6, 1993 and suspended for one day to August 7, 1993. The Expanded Interconnection revisions found on the following tariff pages are scheduled to become effective August 6, 1993:

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 39.1 3rd 25-3 1st 25-4 2nd 25-8 2nd 25-10 2nd 25-11.1 1st 25-12 1st 25-13 1st 25-14 1st 25-16.1 2nd 25-19 4th 25-20 3rd

(This page filed under Transmittal No. 2291) Issued: August 6, 1993 1010 Pine Street, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 4 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau's Memorandum Opinion And Order Suspending Rates And Designating Issues For Investigation, In the Matter of 1993 Annual Access Tariff Filings; National Exchange Carrier Association Universal Service Fund and Lifeline Assistance Rates; GSF Order Compliance Filings and Bell Operating Companies' Tariff for the 800 Service Management System and 800 Data Base Access Tariffs, released June 23, 1993, (1993 Annual Access Tariff Filing Compliance MO&O), tariff revisions filed under Transmittal Nos. 2271, 2274 and 2283, are suspended one day and an investigation of the rates is instituted. The effective date of the 1993 Annual Access Tariff Filing and the General Support Facility (GSF) revisions found on the following tariff pages are suspended for one day to July 2, 1993: Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 3-20 7th 6-198 2nd 7-139 2nd 4-10 3rd 6-199 2nd 7-152 5th 4-11 3rd 6-206 3rd 7-153 5th 4-12 3rd 6-207 3rd 7-154 4th 6-179 8th 6-208 4th 7-169.7 1st 6-179.1 3rd 6-209 4th 7-169.8 1st 6-180 3rd 7-76 5th 7-169.9 Original 6-181 3rd 7-78 5th 7-185 7th 6-182 3rd 7-89 7th 7-186 4th 6-183 3rd 7-90 4th 7-187 4th 6-184 3rd 7-91 5th 7-209.4.1 3rd 6-185 11th 7-92 5th 7-209.4.2 2nd 6-186 4th 7-93 5th 7-209.4.3 2nd 6-187 3rd 7-94 5th 7-209.4.4 2nd 6-188 5th 7-95 5th 7-209.7 Original 6-189 3rd 7-126.7 3rd 7-209.8 Original 6-190 3rd 7-126.8 2nd 9-22 9th 6-191 3rd 7-126.9 2nd 16-20 1st 6-192 3rd 7-126.10 2nd 19-37 3rd 6-193 3rd 7-126.11 2nd 19-41 4th 6-194 5th 7-126.12 2nd 19-46 3rd 6-194.1 3rd 7-130 7th 20-42 5th 6-195 2nd 7-131 7th 20-43 5th 6-196 2nd 7-132 6th 20-44 5th 6-197 2nd 7-138 5th 22-7 5th

(This page filed under Transmittal No. 2284) Issued: June 29, 1993 1010 Pine Street, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 3 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

In compliance with the Bureau Order in CC Docket No. 91-141 released June 9, 1993, and under authority of Special Permission No. 93-466, the Expanded Interconnection tariff revisions filed under Transmittal No. 2260, and revised under Transmittal Nos. 2279 and 2280, are being advanced for one day to June 15, 1993 and suspended for one day to June 16, 1993. The tariff revisions are suspended in part. The entire rate is suspended for one day and the part of the rate that exceeds the rate levels designated in the Bureau Order in CC Docket No. 91-141 released June 9, 1993, is suspended for five months until November 15, 1993. Rates scheduled to become effective June 16, 1993 and employing the rate adjustment factors outlined in the Bureau's Order are revised as follows: Rate Element Rate Adjustment Factor New Monthly Rate Conduit Space 49.40% $ .16 DC Transmission Power 72.23% 785.39 DS1 Interconnection Cross Connect 67.86% 4.90 DS3 Interconnection Cross Connect 43.37% 48.94 The Expanded Interconnection revisions found on the following tariff pages are scheduled to become effective June 16, 1993: Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 31.1 1st 5-1 3rd 25-13 Original 39.1 2nd 5-17.1 1st 25-14 Original 2-4 3rd 7-47 1st 25-15 Original 2-5 3rd 20-36 3rd 25-16 2nd 2-6 3rd 25-1 1st 25-16.1 1st 2-8 2nd 25-2 1st 25-17 1st 2-36 3rd 25-3 Original 25-18 Original 2-53 4th 25-4 1st 25-18.1 Original 2-54 2nd 25-5 1st 25-19 2nd 2-104 2nd 25-6 1st 25-20 1st 2-105 1st 25-7 1st 25-21 Original 2-107 2nd 25-8 1st 25-22 Original 2-107.1 Original 25-9 Original 25-23 Original 2-113 1st 25-10 1st 25-24 Original 2-114 1st 25-11 1st 25-25 Original 2-114.1 Original 25-11.1 Original 25-26 Original 2-121 2nd 25-12 Original

(This page filed under Transmittal No. 2282) Issued: June 14, 1993 1010 Pine Street, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 2 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Under authority of Special Permission No. 93-384 of the Federal Communications Commission, the following tariff pages, filed under Transmittal No. 2260, relating to the CC Docket 91-141, are deferred until June 16, 1993. Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 31.1 Original 25-10 Original 39.1 1st 25-11 Original 2-4 2nd 25-12 Original 2-5 2nd 25-13 Original 2-6 3rd 25-14 Original 2-8 1st 25-15 Original 2-36 2nd 25-16 Original 2-53 2nd 25-17 Original 2-54 1st 25-18 Original 2-104 2nd 25-19 Original 2-105 1st 25-20 Original 2-107 2nd 25-21 Original 2-107.1 Original 25-22 Original 2-113 1st 25-23 Original 2-114 1st 25-24 Original 2-114.1 Original 25-25 Original 2-121 1st 25-26 Original 5-1 2nd 5-17.1 Original 7-47 1st 20-36 3rd 25-1 Original 25-2 Original 25-3 Original 25-4 Original 25-5 Original 25-6 Original 25-7 Original 25-8 Original 25-9 Original

(This page filed under Transmittal No. 2278) Issued: May 14, 1993 1010 Pine Street, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY Supplement No. 1 to TARIFF F.C.C. NO. 73 Page 1 of 1

ACCESS SERVICE

Under the authority of Special Permission No. 93-349 of the Federal Communications Commission, the effective date of the 800 NPAS revisions contained in the following Sections 2, 5, 6, 9 and Table of Contents, originally filed under Transmittal No. 2264 and revised under Transmittal No. 2269, are being advanced for one day to April 30, 1993 and suspended for one day until May 1, 1993, pursuant to the Order of the Federal Communications Commission, In the Matter of the Bell Operating Companies' Tariff for the 800 Service Management System, Tariff F.C.C. No. 1 and 800 Data Base Access Tariffs, CC Docket No. 93- 129, released April 28, 1993. Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 8 1st 6-19 2nd 6-208 3rd 2-3 6th 6-20 1st 6-209 2nd 2-5 3rd 6-21 2nd 9-3 1st 2-7 1st 6-24 1st 2-8 2nd 6-26 1st 2-41 2nd 6-27 2nd 2-42 2nd 6-28 1st 2-42.1 1st 6-32 1st 2-43 3rd 6-33 2nd 2-43.1 1st 6-35 2nd 2-46 1st 6-36 2nd 2-47 2nd 6-37 1st 2-93 2nd 6-42 1st 2-108 1st 6-43 1st 2-109 1st 6-56 3rd 2-116 1st 6-58 3rd 2-117 1st 6-58.1 Original 2-123 1st 6-71 3rd 5-1 3rd 6-86 3rd 5-10 1st 6-131 1st 5-11 1st 6-132 1st 5-23 4th 6-142 1st 6-1 1st 6-143 2nd 6-3 1st 6-144 2nd 6-4 2nd 6-148 2nd 6-10 1st 6-149 1st 6-12 1st 6-150.1 1st 6-13 2nd 6-150.2 1st 6-14 2nd 6-165 3rd 6-16 1st 6-165.1 1st 6-17 2nd 6-185 9th

(This page filed under Transmittal No. 2273) Issued: April 29, 1993 1010 Pine Street, St. Louis, Missouri 63101 SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 1-1 Cancels 3rd Revised Page 1-1

ACCESS SERVICE

1. Application of Tariff

1.1 This tariff contains regulations, rates and charges applicable to the provision of Carrier Common Line, End User Access, Prescribed

Interexchange Carrier Charge, Federal Universal Service Fund (FUSF) (T) Surcharge, Switched Access and Special Access Services, and other (T) miscellaneous services, hereinafter referred to collectively as

service(s), provided to customers by the Southwestern Bell Telephone Company, hereinafter referred to as the Telephone Company.

1.2 The operating territory of the Telephone Company is set forth in Section 15 (Operating Territory of the Telephone Company) for the states of Arkansas, Kansas, Missouri, Oklahoma, and Texas.

1.3 The provision of such services by the Telephone Company as set forth in this tariff does not constitute a joint undertaking with the customer

for the furnishing of any service.

(This page filed under Transmittal No. 3266 )

Issued: August 22, 2008 Effective: September 6, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 2-1 Cancels 6th Revised Page 2-1

ACCESS SERVICE

Page

2. General Regulations 2-9

2.1 Undertaking of the Telephone Company 2-9

2.1.1 Scope 2-9 2.1.2 Limitations 2-10 2.1.3 Liability 2-11 2.1.4 Provision of Services 2-14 2.1.5 Operation and Maintenance 2-18 (A) Maintenance of Service 2-18 (B) Availability of Testing 2-18 (C) Interference or Impairment 2-18 2.1.6 Refusal and Discontinuance of Services 2-20 2.1.7 Provision and Ownership of Telephone Numbers 2-23 2.1.8 Technical References 2-24 2.1.9 Metropolitan Statistical Area Access Services 2-24 2.1.10 Broadband Services 2-24

2.2 Use 2-25

2.2.1 Assignment and Transfer of Facilities 2-25 2.2.2 Unlawful and Abusive Use 2-26

2.3 Obligations of the Customer 2-27

2.3.1 Design of Customer Services 2-27 2.3.2 Connections 2-28 2.3.3 Equipment, Space and Power 2-29 2.3.4 Balance 2-30 2.3.5 Coordination with Respect to Network Contingencies 2-31 2.3.6 References to the Telephone Company 2-32 2.3.7 Damages 2-33 2.3.8 Claims and Demands for Damages 2-34 2.3.9 Customer Provided Reports 2-35 2.3.10 VoIP – PSTN Traffic 2-35 (N)

2.4 Jurisdictional Reports 2-36

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma 2-37 (A) Report Requirements 2-37 (B) Report Updates 2-45.4 (C) Application of PIU 2-48 (D) Report Verification 2-49 (E) Audit Results 2-52 (F) Contested Audits 2-52

(This page filed under Transmittal No. 3335 )

Issued: January 31, 2012 Effective: February 15, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 14th Revised Page 2-2 Cancels 13th Revised Page 2-2

ACCESS SERVICE

Page

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.2 Percentage of Interstate Use (PIU) for Texas 2-52.3 (A) Report Requirements for Ordering Access Service 2-52.3 (B) Report Updates 2-52.9 (C) Application of PIU 2-52.12 (D) Report Verification 2-52.12 (E) Audit Results 2-52.12 (F) Contested Audits 2-52.12 2.4.3 Certification Requirements 2-53 (A) Special Access Service, MegaLink Custom Services and Self-healing Transport Network Service 2-53 (B) Expanded Interconnection 2-54

2.5 Billing Regulations 2-55

2.5.1 Advance Payments 2-55 2.5.2 Deposits and Other Payments 2-56 (T) 2.5.3 Payment of Rates and Charges 2-62 (A) Past Due Charges 2-63 (B) Billing Disputes Resolved in Favor of the Telephone Company 2-66 (C) Billing Disputes Resolved in Favor of the Customer 2-68 2.5.4 Minimum Periods 2-72 2.5.5 Missed Installation on Confirmed Due Date 2-72.1 (A) General 2-72.1 (B) Services Subject to the Credit 2-72.1 (C) When a Credit Allowance Does Not Apply 2-72.1 2.5.6 Credit Allowance for Service Interruption 2-73 (A) General 2-73 (B) When a Credit Allowance Applies 2-73 (C) When a Credit Allowance Does Not Apply 2-76.9 (D) Use of An Alternative Service Provided by the Telephone Company 2-76.10 (E) Temporary Surrender of a Service 2-76.10 2.5.7 Service Assurance Warranty Schedule (SAWS) 2-76.11 (A) Special Access 2-76.11 (B) Switched Access Service and Directory Assistance Service 2-78.6

2.6 Jointly Provided Access Services 2-82

2.6.1 Single Bill Arrangement 2-83 2.6.2 Single Bill - Single Tariff Meet Point Billing Arrangement 2-84 2.6.3 Multiple Bill Meet Point Billing Arrangement 2-86

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 24th Revised Page 2-3 Cancels 23rd Revised Page 2-3

Page

2. General Regulations (Cont'd)

2.7 Definitions 2-92 Access Code 2-92 Access Customer Name Abbreviation (ACNA) 2-92 Access Customer Terminal Location (ACTL) 2-92 Access Minutes 2-92 Access Node 2-92 Access Tandem 2-92 Access Tandem Network 2-92 Access Transport Parameter (ATP) 2-92.1 Account Owner 2-92.1 Add/Drop Multiplexing 2-92.1 Advanced Carrier Identification Service (ACIS) Code 2-92.1 Aggregator 2-92.1 Alarm Collection Device 2-93 Alternate Billing Services 2-93 (T) Alternate Use 2-93 Answer Message 2-93 Answer/Disconnect Supervision 2-93 Area of Service (AOS) 2-93 Assumed Average Access Minutes 2-93 Asynchronous 2-93 Attenuation Distortion 2-94 Average Account Life 2-94 Average Business Day 2-94 Balance (100 Type) Test Line 2-94 Basic Service Element (BSE) 2-94 Basic Serving Arrangement (BSA) 2-94 Basic Transmission Equipment 2-94 Billed Number Screening (BNS) 2-94 Billing Account Number (BAN) 2-95 Billing Clearing House 2-95 Bit 2-95 Broadcast Traffic 2-95 Building 2-95 Business Day 2-95 Busy Hour Minutes of Capacity (BHMC) 2-96 Call 2-96 Call-out 2-96 (N) Carrier or Common Carrier 2-96 Carrier Identification Code (CIC) 2-96 Carrier Identification Code Parameter (CIP) 2-96 Cascading Service User 2-96 Cascading Shared Network Arrangement 2-96 C Band 2-96 (N) CCS 2-96 Cellular Mobile Carrier 2-96 Central Office 2-97 Central Office Prefix 2-97 Centralized Automatic Reporting on Trunks (CAROT) Testing 2-97 Channel(s) 2-97 Channelize 2-97

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 2-4 Cancels 10th Revised Page 2-4

ACCESS SERVICE

Page

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Channel Service Unit 2-97 Choke Network AKA High Volume Call-In (HVCI) Network 2-97 (N) Clear Channel Capability 2-97 C-Message Noise 2-98 C-Notched Noise 2-98 Commingling 2-98 (N) Committed Information Rate 2-98 (N) Coin Station 2-98 Common Channel Signaling (CCS) 2-98.1 (T) Common Line 2-98.1 (T) Communications System 2-99 Confirmed Due Date 2-99 Connecting Facility Assignment (CFA) 2-99 Customer(s) 2-99 Customer Carrier Name Abbreviation (CCNA) 2-99 Customer Circuit Reference (CKR) 2-99 Customer Signaling Point Code (CSPC) 2-99 Customer Terminal Location 2-100 Data Transmission (107 Type) Test Line 2-100 Decibel (dB) 2-100 Decibel Reference Noise C-Message Weighting 2-100 Decibel Reference Noise C-Message Reference to 0 2-100 Demarcation Point 2-100 Desired Due Date 2-100 (N) Detail Billing 2-101 Digital Transmission Link (DTL) 2-101 Direct-Trunked Transport Facility 2-101 Directory Assistance 2-101 Directory Assistance Location 2-101 Donor Switch 2-101 (N) Dual Gateway Network Element 2-101 Echo Control 2-101 Echo Path Loss (EPL) 2-102 Echo Return Loss (ERL) 2-102 Effective 2-Wire 2-102 Effective 4-Wire 2-102 Electronic Access 2-103 Electronic Connection (EC-1) 2-103 End Office Switch 2-103 End User 2-103 Entity 2-103 Entrance Cable 2-103 Entrance Facility 2-103 Entry Switch 2-103.1 Envelope Delay Distortion (EDD) 2-103.1 Equal Level Echo Path Loss (ELEPL) 2-103.1 Equalized 2-103.1 Ethernet Virtual Connection (EVC) 2-103.1 (N) Exchange 2-104 Exchange Company Signaling Point Code (ECSPC) 2-104 Exit Message 2-104 Expanded Interconnection 2-104 Expected Measured Loss (EML) 2-104

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 2-5 Cancels 11th Revised Page 2-5

ACCESS SERVICE

Page

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Facility 2-104 Facility Interface 2-105 Feature Group 2-105 Facility Signaling Point of Interconnection (FSPOI) 2-105 (N) Field Identifier (FID) 2-105 First Come - First Served 2-105 First Point of Switching 2-105 Frequency Shift 2-105 Gateway Network Element (GNE) 2-105 Grandfathered 2-105 High Capacity Channel 2-106 Host Computer 2-106 Host Office 2-106 Host Subscriber 2-106 Hub 2-106 Immediately Available Funds 2-106 Impedance Balance 2-106 Improved Protection 2-107 Impulse Noise 2-107 Individual Case Basis (ICB) 2-107 Initial Address Message (IAM) 2-107 Inserted Connection Loss (ICL) 2-107 Interconnecting Signaling Transfer Point (STP) 2-107.1 Interconnector 2-107.1 Interexchange Carrier (IC) or Interexchange Common Carrier 2-107.1 Intermediate Bridging Hub 2-108 Intermediate Multiplexing Hub 2-108 Intermediate Tandem 2-108 Intermodulation Distortion 2-108 International Direct Distance Dialing (IDDD) 2-108 Internet Protocol (IP) Dedicated Access Connection 2-108 Internet Protocol (IP) Enabled Voice Information Service (IP-VIS) Dedicated Location 2-108 Internet Protocol (IP) Enabled Voice Information Service (IP-VIS) 2-108 IP Enabled Voice Information Service (IP-VIS) Off Net Traffic 2-108.1 IP Enabled Voice Information Service (IP-VIS) On Net Traffic 2-108.1 IP Enabled Voice Information Service (IP-VIS) Traffic 2-108.1 IP Enabled Voice Information Service (IP-VIS) User 2-108.1 IP Enabled Voice Information Service (IP-VIS) User Site 2-109 Internet Protocol (IP) Gateway 2-109 Internet Protocol (IP) Network 2-109 Interstate Communications 2-109 Intrastate Communications 2-109 Kilocharacter 2-109 Kilosegment 2-109 L Band 2-109.1 Line Information Data Base (LIDB) 2-109.1 Line Side Connection 2-109.1 Link Type (LT) 2-109.1 Local Access and Transport Area (LATA) 2-109.1 Local Calling Area 2-109.1 Local Tandem Switch 2-109.1 Location Routing Number 2-109.1 Loop Around Test Line 2-110 Loss Deviation 2-110

(This page filed under Transmittal No. 3415 )

Issued: October 13, 2015 Effective: October 28, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 33rd Revised Page 2-6 Cancels 32nd Revised Page 2-6

Page 2. General Regulations (Cont'd) 2.7 Definitions (Cont'd) Manhole 2-110 Mapping 2-110 Media Access Control (MAC) Address 2-110 (N) Media Stimulated Mass Calling Events 2-110 MegaLink Data Channel 2-110 Merger 2-110 Message 2-110 Metallic Channel 2-111 Milliwatt (102 Type) Test Line 2-111 Mobile Access Tandem Connection 2-111 Mobile Carrier 2-111 Mobile End Office Connection 2-111 Mobile Telephone Switching Office 2-111.1 Multicast Traffic 2-111.1 Multipoint Service 2-111.1 N-1 Network 2-111.1(N) Network Access Point (NAP) 2-111.1 Network Control Signaling 2-111.1 Network Interface 2-111.1 Non-diplexed 2-111.1 Non IP Enabled Voice Information Service (IP-VIS) Traffic 2-111.1 Non IP Enabled Voice Information Service (IP-VIS) User 2-111.1 Non IP Enabled Voice Information Service (IP-VIS) Off Net Traffic 2-112 Non IP Enabled Voice Information Service (IP-VIS) On Net Traffic 2-112 Nonsynchronous Test Line 2-112 North American Numbering Plan (NANP) 2-112 Octet 2-112 Off-Hook 2-112 Off Net End User 2-112 On-Hook 2-112 Open Circuit Test Line 2-112 Operator Services 2-112 Operator Service System (OSS) 2-112 Optical Carrier Level N (OC-N) 2-113 (N) Optical Carrier Level M (OC-M) 2-113 (N) Optical Carrier Rate (OC#) 2-112 (T) Optical Carrier Rate # Concatenated (OC#c) 2-113 (T) Optical Carrier Signal 2-113 Originating Direction 2-113 Originating Point Code (OPC) 2-113 Overhead 2-113 OZZ Code 2-113 Packet 2-113 Packet Delivery Rate (PDR) 2-113.1(N) Packet Switching Network 2-113.1(T) Partitioned Space 2-113.1 Pay Telephone 2-114 Personal Communications Service (PCS) 2-114 (T) Personal Identification Number (PIN) 2-114 Phase Jitter 2-114 Point of Termination 2-114 Premises 2-114 Primary Residential Service 2-114.1 Primary Residential Zone 2-114 (N) Program Audio Channel 2-114.1 Protection 2-114.1 Protocol 2-114.1 Query 2-114.1 Radio Common Carrier 2-114.1 Rating Point 2-114.1 Recipient Switch 2-114.1(N) Regional Service Management System/Number Portability Administration Center (RSMS/NPAC) 2-114.1(N) Registered Equipment 2-115 Release Message 2-115

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-6.1

ACCESS SERVICE

(T) Page │ │ 2. General Regulations (Cont'd) │ (T) 2.7 Definitions (Cont'd) (M) │ │ │ │ │ │(D) │ │ (M)

Certain material and certain revised material appearing on this page previously appeared on 25th Revised Page 2-6.

Issued under authority of the F.C.C.'s order, 97-394, released November 14, 1997.

(This page filed under Transmittal No. 2672 )

Issued: November 20, 1997 Effective: November 21, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 2-7 Cancels 12th Revised Page 2-7

Page 2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Remote Switching Modules (RSM) or Remote Switching Systems (RSS) 2-115 Response 2-115 Return Loss 2-115 Riser Tail 2-115 Serial Input/Output 2-115 Service Control Point (SCP) 2-116 Service Management System/800 (SMS/800) 2-116 Service Switching Point (SSP) 2-116 Service Termination 2-116 Service User 2-116 Serving Wire Center 2-116 Session 2-116 Seven Digit Manual Test Line 2-116 Shared Network Arrangement 2-116 Shortage of Facilities or Equipment 2-117 (T) Short Circuit Test Line 2-117 Signal-To-C-Notched Noise Ratio 2-117 Signaling Link (SL) 2-117 Signaling Link Code (SLC) 2-117 Signaling Point (SP) 2-117 Signaling System 7 (SS7) 2-117 Signaling Transfer Point (STP) 2-118 Singing Return Loss (SRL) 2-118 SONET-based Interface 2-118 Storage Area Network (SAN) 2-118 (N) Subtending End Office of an Access Tandem 2-118 Super Intermediate Multiplexing Hub 2-118 Switching System 2-118 Synchronous 2-118 Synchronous Optical Network (SONET) 2-118 Synchronous Test Line 2-119 Tandem-Switched Directory Transport Facility 2-119 Tandem-Switched Transport Facility 2-119 Telecommunications Relay Service 2-119 Telegraph Grade Channel 2-119 Terminating Direction 2-119.1 Terminus Bridging Hub 2-119.1 Terminus Multiplexing Hub 2-119.1 Text Telephone 2-119.1 Third Party Host 2-119.1(N) Throughput 2-119.1 (D) Transmission Measuring (105 Type) Test Line/Responder 2-120 Transmission Path 2-120 Trunk 2-120 Trunk Group 2-120 Trunk Side Connection 2-120 Two-Point Service 2-120 Two-Wire to Four-Wire Conversion 2-121 Unbundled Network Elements (UNEs) 2-120 (N) Unicast Traffic 2-121 Uniform Service Order Code (USOC) 2-121 Unknown Unicast Traffic 2-121

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-8 Cancels 9th Revised Page 2-8

ACCESS SERVICE

Page

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

V and H Coordinates Method 2-121 Video Channel 2-121 Virtual Collocation 2-121 Virtual Network Interface 2-121 Virtual Tributary (VT1.5) 2-121 Virtual Tributary (VT) 2-122 Voice Grade Channel 2-122 WATS Access Line (WAL) 2-122 WATS Serving Office 2-122 Wide Area Network Physical Transport (WAN-PHY) 2-122 (D) (D) Wire Center 2-122 X.25 Protocol 2-123 X.75 Protocol 2-123 800 Number Portability Access Service (NPAS) 2-123 800 Service Provider 2-123 800 Subscriber 2-123 900 Access Service Screening Office 2-123

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-9 Cancels Original Page 2-9

ACCESS SERVICE

2. General Regulations

2.1 Undertaking of the Telephone Company

2.1.1 Scope

(A) The Telephone Company does not undertake to transmit messages or offer any services under this tariff.

(B) The Telephone Company shall be responsible only for the installation, operation and maintenance of the services it provides. Telephone Company facilities are to be used only for Telephone Company provided services or equipment.

(C) The Telephone Company shall, for maintenance purposes, test its services only to the extent necessary to detect and/or clear trouble.

(D) Services are provided 24 hours daily, seven days per week except as set forth in other sections of this tariff.

(E) The provision of such services by the Telephone Company as set forth in this tariff does not constitute a joint undertaking with the customer for the furnishing of any service.

(F) Facilities utilized by the Telephone Company to provide service under the provisions of this tariff shall remain the property of the Telephone Company.

(G) The Telephone Company does not warrant that its facilities and services meet standards other than those set forth in this tariff and specifically referenced technical publications.

(H) The regulations set forth in this tariff shall apply to (1) access services ordered by a customer pursuant to Section (N) 5, as well as to (2) facilities provisioned by the Telephone Company on behalf of a customer as DS1 or DS3 loop or transport, entrance facilities, dedicated DS0 and/or Optical Carrier Network unbundled network elements (UNEs), but which, as of March 12, 2006, are no longer available as UNEs and for which no alternative arrangements have been made as of March 12, 2006.

(N)

(This page filed under Transmittal No. 3117 )

Issued: February 24, 2006 Effective: March 11, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-10

ACCESS SERVICE

(M) 2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd) (M) 2.1.2 Limitations (T) (A) The use and restoration of services shall be in accordance (M) with Part 64, Subpart D, Appendix A, of the Federal │ Communications Commission's Rules and Regulations, which (M) specifies the priority system for such activities as set (T) forth in Section 10 (Federal Government Specialized (T) Services or Arrangements) concerning the Telecommunications (M) Service Priority (TSP) System. (T) (B) Directory listings will not be furnished as a part of the (M) services provided under this tariff. Directory listings will be provided at the rates and charges specified in the appropriate General Exchange Tariff for additional (M) listings. (T) (C) Signals applied to a metallic facility shall conform to the (M) limitations set forth in Reference Publication AS No. 1, Issue II. In the case of application of dc telegraph signaling systems, the customer shall be responsible, at its expense, for the provision of current limiting devices to protect the Telephone Company facilities from excessive current due to abnormal conditions and for the provision of noise mitigation networks when required to reduce excessive noise.

Material and revised material appearing on this page formerly appeared on 8th Revised Page 16 and 9th Revised Page 17 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-11

ACCESS SERVICE

(M) 2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd) (M) 2.1.3 Liability (T) (A) The Telephone Company's liability for it's willful (T) misconduct, if any, is not limited by this tariff. With (M) respect to any other claim or suit, by a customer or by any others, for damages associated with the installation, provision, preemption, termination, maintenance, repair or restoration of service, and subject to the provisions of (B) through (H) following, the Telephone Company's liability, if any, shall not exceed an amount equal to the proportionate charge for the service for the period during which the service was affected. This liability for damages shall be in addition to any amounts that may otherwise be due the customer under this tariff as a credit allowance (M) for a service interruption. (T) (B) The Telephone Company shall not be liable for any act or (M) omission of any other carrier or customer providing a │ portion of a service, nor shall the Telephone Company for (M) its own act or omission hold liable any other carrier or (T) customer providing a portion of a service.

(C) Where an exchange telephone company, that jointly provides access service with the Telephone Company, is incapable of (T) denying such service in compliance with its tariffs, (M) without the cooperation of the Telephone Company, the Telephone Company will assist that exchange telephone company in denying joint access service to the customer as long as that exchange telephone company indemnifies, defends and holds harmless the Telephone Company from and against any and all liability, loss, damages, costs, claims or expenses of any kind arising out of the Telephone Company's assistance in the denial of service. Service denial for such joint access service will only include calls which originate or terminate within, or transit, the operating territory of the exchange telephone company(ies) initiating the service denial.

Certain material appearing on this page formerly appeared on 9th Revised Page 17 of Tariff F.C.C. No. 68.

Certain material and revised material appearing on this page formerly appeared on 10th Revised Page 18 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-12

ACCESS SERVICE

(M) 2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd)

2.1.3 Liability (Cont'd)

(D) The Telephone Company is not liable for damages to the customer's premises resulting from the furnishing of a service, including the installation and removal of equipment and associated wiring, unless the damage is caused by the Telephone Company's negligence.

(E) When a customer is provided service under this tariff, the Telephone Company shall be indemnified, defended and held harmless by the customer against any claim, loss or damage arising from the customer's use of services offered under (M) this tariff, involving: (T) (1) Claims for libel, slander, invasion of privacy, or (M) infringement of copyright arising from the customer's (M) own communications; (T) (2) Claims for patent infringement arising from the (M) customer's acts combining or using the service │ furnished by the Telephone Company in connection with (M) facilities or equipment furnished by the customer; or (T) (3) All other claims arising out of any act or omission of (M) the customer in the course of using services provided pursuant to this tariff.

(F) The Telephone Company does not guarantee or make any warranty with respect to its services when used in an explosive atmosphere. The Telephone Company shall be indemnified, defended and held harmless by the customer from any and all claims by any person relating to the customer's use of the services so provided.

Material and revised material appearing on this page formerly appeared on 10th Revised Page 18 of Tariff F.C.C. No. 68.

Material appearing on this page formerly appeared on 9th Revised Page 19 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-13 Cancels Original Page 2-13

ACCESS SERVICE

2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd)

2.1.3 Liability (Cont'd)

(G) No license under patents (other than the limited license to use) is granted by the Telephone Company or shall be implied or arise by estoppel, with respect to any service offered under this tariff. The Telephone Company will defend the customer against claims of patent infringement arising solely from the use by the customer of services offered under this tariff and will indemnify such customer for any damages awarded based solely on such claims.

(H) The Telephone Company's failure to provide or maintain services under this tariff shall be excused by labor difficulties, governmental orders, civil commotions, criminal actions taken against the Telephone Company, acts of God and other circumstances beyond the Telephone Company's reasonable control. However, credit allowance (T) for service interruptions as specified in 2.5.6 (Credit │ Allowance for Service Interruptions) will apply. (T)

(This page filed under Transmittal No. 2400 )

Issued: November 10, 1994 Effective: December 25, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-14 Cancels 2nd Revised Page 2-14

ACCESS SERVICE

2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd)

2.1.4 Provision of Services

(A) The Telephone Company will provide to the customer, upon reasonable notice, services offered in this tariff at the specified rates and charges, to the extent that such services are or can be made available with reasonable effort and after provisions have been made for the Telephone Company's Telephone Exchange Service.

In the event that the customer's request cannot be fulfilled with existing facilities and equipment or the request is not consistent with the Telephone Company's filed tariffs and technical references contained therein, alternative designs may be provided by the Telephone Company. Additionally, the Telephone Company will work with the customer to reach an agreeable solution.

(B) The services provided under this tariff are provided over such routes and facilities as the Telephone Company may elect. Requests for special facilities or routing of access service will be provided in accordance with Southwestern Bell Tariff F.C.C. No. 69 or Section 27 (Diversity), as appropriate.

(C) The services in this tariff (not including Expanded Interconnection, as set forth in Section 25) will be provided as follows:

(1) The service will include any entrance cable or drop wiring and wiring or as set forth in Part 68 of the F.C.C.'s Rules and Regulations.

(2) The service will be installed by the Telephone Company to such point of termination. Access Service is provided with only one Point of Termination per customer request, the Telephone Company will provide additional Points of Termination at an additional (N) charge. The charge for additional points of termination will include the cost of additional materials and labor. The labor rates, as set forth in 13.4.2(C) (Charges for Additional labor), will apply.

(N)

(This page filed under Transmittal No. 2801 )

Issued: December 21, 1999 Effective: January 5, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-15

ACCESS SERVICE

(M) 2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd) (M) 2.1.4 Provision of Services (Cont'd) (T) (D) Moves involving the point of termination at the customer's premises for Access Services offered under this tariff are discussed in the appropriate section of this tariff. (T) (E) Standard Jacks, discussed in 13.3.5 (Standard Jacks), are (M) used where appropriate to terminate services. Jacks other than those used to terminate services may be provided by the Telephone Company as specified in the General Exchange (M) Tariff. (T) (F) Except as provided for equipment and systems subject to (M) F.C.C. Part 68 Regulation at 47 C.F.R. Section 68.110(b), (M) the Telephone Company may, where such action is reasonably (T) required in the operation of its business: (M) (1) Substitute, change or rearrange any facilities used in (M) providing service under this tariff, including but not (T) limited to:

- substitution of different metallic facilities, (T) - substitution of carrier or derived facilities for (M) metallic facilities used to provide other than (T) metallic facilities, and (T) - substitution of metallic facilities for carrier (M) or derived facilities used to provide other than (T) metallic facilities; (T) (2) Change minimum network protection criteria; (M) (3) Change operating or maintenance characteristics of (T) facilities; or (M) (4) Change operations or procedures of the Telephone Company.

Material and revised material appearing on this page formerly appeared on 28th Revised Page 21 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-16

ACCESS SERVICE

(M) 2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd) (M) 2.1.4 Provision of Services (Cont'd) (T) (G) In case of any such substitution, change or rearrangement as described in (F) preceding, the facility parameters will be within the range as set forth in Section 6 (Switched Access Service) and Section 7 (Special Access Service). (T) The Telephone Company shall not be responsible if any such (M) substitution, change or rearrangement renders any customer │ furnished services obsolete or requires modification or (M) alteration thereof or otherwise affects their use or (T) performance. If such substitution, change or rearrangement (M) materially affects the operating characteristics of the (M) facility, the Telephone Company will provide reasonable notification to the customer in writing. Reasonable time will be allowed for any redesign and implementation required by the change in operating characteristics. The Telephone Company will work cooperatively with the customer to determine reasonable notification requirements.

Material and revised material appearing on this page formerly appeared on 28th Revised Page 21 and 5th Revised Page 21.1 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 2-17 Cancels 6th Revised Page 2-17

ACCESS SERVICE

2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd)

2.1.4 Provision of Services (Cont'd)

(H) The Telephone Company will provide the customer reasonable notification of service-affecting activities that may occur in normal operation of its business. Such activities may include, but are not limited to, equipment or facilities additions, removals or rearrangements, routine preventative maintenance and major switching machine change-out. Generally, such activities are not individual customer service specific, but affect many customer services. No specific advance notification period is applicable to all service activities. The Telephone Company will work cooperatively with the customer to determine the notification requirements.

(I) The Telephone Company will work cooperatively with the customer to develop network contingency plans in order to maintain maximum network capability following natural or man-made disasters which affect telecommunications services.

(x)

(x)

(x)Issued under authority of Special Permission No. 08-027 of the FCC in order to withdraw material filed under Transmittal No. 3275 without it becoming effective. (This page filed under Transmittal No. 3277 )

Issued: December 18, 2008 Effective: December 19, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-17.1 Cancels Original Page 2-17.1

ACCESS SERVICE

(x)

(x)

(x)Issued under authority of Special Permission No. 08-027 of the FCC in order to withdraw material filed under Transmittal No. 3275 without it becoming effective.

(This page filed under Transmittal No. 3277 )

Issued: December 18, 2008 Effective: December 19, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-17.2 Cancels Original Page 2-17.2

ACCESS SERVICE

(x)

(x)

(x)Issued under authority of Special Permission No. 08-027 of the FCC in order to withdraw material filed under Transmittal No. 3275 without it becoming effective.

(This page filed under Transmittal No. 3277 )

Issued: December 18, 2008 Effective: December 19, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-18 Cancels 1st Revised Page 2-18

ACCESS SERVICE

2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd)

2.1.5 Operation and Maintenance

(A) Maintenance of Service

The services provided under this tariff shall be maintained by the Telephone Company. The customer or others may not rearrange, move, disconnect, remove or attempt to repair any facilities provided by the Telephone Company, other than by connection or disconnection to any interface means used, except with the written consent of the Telephone Company.

Customer owned inside wire maintenance is the customer's responsibility, but may be maintained by the Telephone Company at the customer's request, on a deregulated basis. When trouble on an Access Service is caused by facilities, equipment or wiring owned by the customer, a charge will apply on a deregulated basis. (T) (B) Availability of Testing (T) (T) The services provided under this tariff shall be available to the Telephone Company at times mutually agreed upon in (T) order to permit the Telephone Company to make tests and adjustments appropriate for maintaining the services in satisfactory operating condition. Such tests and adjustments shall be completed within a reasonable time. No credit will be allowed for any interruptions involved during such tests and adjustments.

(C) Interference or Impairment

The characteristics and methods of operation of any circuits, facilities or equipment provided by other than the Telephone Company and associated with the facilities utilized to provide services under this tariff shall not interfere with or impair service over any facilities of the Telephone Company, its affiliated companies or its connecting and concurring carriers involved in its services, cause damage to their plant, impair the privacy of any communications carried over their facilities or create hazards to the employees of any of them or the public.

(This page filed under Transmittal No. 3073 )

Issued: July 14, 2005 Effective: July 29, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-19 Cancels 1st Revised Page 2-19

2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd)

2.1.5 Operation and Maintenance (Cont'd)

(C) Interference or Impairment (Cont'd)

The Telephone Company will, where practicable, notify the customer that temporary discontinuance of the use of a service may be required, except as provided for equipment or systems subject to F.C.C. Part 68 Rules in 47 C.F.R. Section 68.108, if such characteristics or methods of operation are not in accordance with paragraph preceding. Where prior notice is not practicable, nothing contained herein shall be deemed to (T) preclude the Telephone Company's right to temporarily discontinue forthwith the use of a service if such action is reasonable under the circumstances. In case of such temporary discontinuance, the customer will be promptly notified and afforded the opportunity to correct the condition which gave rise to the temporary discontinuance. During such period of temporary discontinuance, allowance for interruption of services as set forth in 2.5.6 (Credit Allowance for Service Interruptions) and 2.5.7 (Service Assurance Warranty Schedule) is not applicable.

(This page filed under Transmittal No. 3114 )

Issued: January 19, 2006 Effective: February 3, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 2-20 Cancels 10th Revised Page 2-20

2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd)

2.1.6 Refusal and Discontinuance of Services The Telephone Company may refuse additional applications for service or discontinue the provision of services as set forth in 2.1.6(A)(1) and 2.1.6(A)(2) following, unless the provisions of 2.1.5(C) (Interference or Impairment) or 2.3.2 (Connections) apply, when the customer fails to comply with:

- 2.1.5(B) (Availability of Testing), - 2.2.2 (Unlawful and Abusive Use), (D) - 2.3.4 (Balance), - 2.3.7 (Damages), - 2.4 (Jurisdictional Reports), or - 2.5 (Billing Regulations) - including any payments to be made by the customer on the dates and times herein specified.

(A) The Telephone Company may initiate any or all of the actions described in 2.1.6(A)(1) and 2.1.6(A)(2) on fifteen (15) calendar days written notice for failure to comply with the bill payment provisions in 2.5.3 if:

(i) the Telephone Company has sent the subject bill to the customer within seven(7) business days of the bill date; or

(ii)the Telephone Company has sent the subject bill to the customer more than thirty (30) calendar days before notice under this section is given.

The 15 day notice will be made by Overnight Delivery to the person designated by that customer to receive such notices of noncompliance, such notice period to start the day after the notice is sent.

For all other compliance failures not qualifying for 15 day notice, the Telephone Company will give thirty (30) calendar days written notice by Overnight Delivery or Certified U.S. Mail (return receipt requested) to the person designated by that customer to receive such notices of noncompliance, such notice period to start the day after the notice is sent. The Telephone Company will maintain records sufficient to validate the date upon which a bill was sent to a customer.

Overnight Delivery under this section shall be performed by a reputable carrier such as the U.S. Postal Service Express Mail, Airborne, United Parcel Service, or Federal Express.

(1) Refuse additional applications for service and/or refuse to complete any pending orders for service by the noncomplying customer at anytime thereafter. The Telephone Company may also refuse to accept and process any requests from end users or from the customer to designate that customer as the end user’s Primary Interexchange Carrier (PIC), as described in Section 13.3.1, following.

(This page filed under Transmittal No. 3076 )

Issued: July 18, 2005 Effective: August 2, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-21 Cancels 9th Revised Page 2-21

2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd)

2.1.6 Refusal and Discontinuance of Services (Cont'd)

(A) (Cont'd)

(1) (Cont’d) (N) If an end user contacts the Telephone Company to designate the customer as the end user’s PIC, the end user will be given the choice of either remaining with the end user’s existing PIC or selecting a new PIC other than the customer. If the Telephone Company does not refuse additional applications for service or PIC (N) changes to the customer on the date specified in the (C) fifteen (15) or thirty (30) days notice, and the (C) customer's noncompliance continues, nothing contained (C) herein shall preclude the Telephone Company's right to (M) refuse additional applications for service to the (M) noncomplying customer or PIC changes to the customer (M) without further notice. (C)

(T) (2) Discontinue the provision of the services to the noncomplying customer. If the Telephone Company (T) discontinues service, it will no longer route any (N) switched access traffic that uses the customer’s (N) Carrier Identification Code(s) (CIC). In the case of (N) such discontinuance, all applicable charges, including (N) termination charges, shall become due. If the Telephone Company does not discontinue the provision of the services involved on the date specified in the notice and the customer's noncompliance continues, (D) nothing contained herein shall preclude the Telephone Company's right to discontinue the provision of the services to the noncomplying customer without further notice.

The Telephone Company will not initiate any of the (N) actions described in paragraphs (1) and (2) above as to disputed bill amounts where the customer does not pay disputed bill amounts by the bill due date as specified in Section 2.5.3, and the Telephone Company has not rendered a decision on the dispute. The dispute process is outlined in 2.5.3(B). (N)

Certain revised material appearing on this page previously appeared on 9th Revised Page 2-20.

Certain material previously appearing on this page now appears on 5th Revised Page 2-22.

(This page filed under Transmittal No. 3045 )

Issued: March 4, 2005 Effective: March 19, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-22 Cancels 4th Revised Page 2-22

2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd)

2.1.6 Refusal and Discontinuance of Services (Cont'd)

(B) When access service is provided by more than one telephone company, the companies involved in providing the joint service may individually or collectively deny service to a customer for nonpayment. Where the telephone (M) companies affected by the nonpayment are incapable of effecting discontinuance of service without cooperation from the other joint providers of Switched Access Service, such other telephone companies will, if technically feasible, assist in denying the joint service to the customer. Service denial for such joint service will only include calls which originate or terminate within, or transit, the operating territory of the telephone companies initiating the service denial for nonpayment. When more than one of the joint providers must deny service to effectuate termination for nonpayment, in cases where a conflict exists in the applicable tariff provisions, the tariff regulations of the telephone company where the customer end office is located shall prevail for joint service discontinuance provisions. (M)

(D)

(D)

Certain material appearing on this page previously appeared on 9th Revised Page 2-21.

(This page filed under Transmittal No. 3045 )

Issued: March 4, 2005 Effective: March 19, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-23

ACCESS SERVICE

(M) 2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd)

2.1.7 Provision and Ownership of Telephone Numbers

The Telephone Company reserves the reasonable right to assign, (M) designate or change telephone numbers, any other call number (T) designations associated with Access Services or the Telephone (M) Company serving central office prefixes associated with such (T) numbers, when necessary, in the conduct of the Telephone Company's business. Should it become necessary to make a change in such numbers, the Telephone Company will furnish to the customer, by Certified U.S. Mail on six (6) months' notice, the effective date and an explanation of the reasons for such changes.

Material and revised material appearing on this page formerly appeared on 1st Revised Page 24.1 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-24 Cancels 3rd Revised Page 2-24

ACCESS SERVICE

2. General Regulations (Cont'd)

2.1 Undertaking of the Telephone Company (Cont'd)

2.1.8 Technical References

The Telephone Company will publish Technical References which the customer can obtain as an aid in selecting the appropriate service interface and feature arrangements.

Upon request, the Telephone Company will furnish network interface information required by Part 68 of the F.C.C.'s Rules and Regulations.

2.1.9 Metropolitan Statistical Area Access Services

For the Metropolitan Statistical Areas (MSAs) in which the Telephone Company has received Phase II pricing flexibility, pursuant to Subpart H of Part 69 of the Commission’s Rules, Section 39 of this Tariff governs the offering of service in these MSAs. Upon approval of Phase II pricing flexibility for a petitioned MSA, services purchased pursuant to Sections 7, 19, 20, 29, 30, 31, 33, 35, 40, and 45, under the various Pricing Plans as identified in Section 39.4(F), will then become subject to the rates in Section 39, Metropolitan Statistical Area Access Services.

2.1.10 Broadband Services (N)

Pursuant to the detariffing authority granted by the Commission in Memorandum Opinion and Order, FCC 07-180 (released October 12, 2007), certain broadband services have been withdrawn from this tariff. When offering these services

through non-tariffed arrangements, the Telephone Company will abide by all of the special access merger commitments set forth in Memorandum Opinion and Order, FCC 06-189 at Appendix F (released March 26, 2007), including but not limited to commitments that contain references to “tariffs,” such as those addressing pricing dispute resolution, and access service ratio terms. The detariffing of these services does not diminish or supersede any of those special access merger commitments. (N)

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-25

ACCESS SERVICE

(M) 2. General Regulations (Cont'd)

2.2 Use (M) 2.2.1 Assignment and Transfer of Facilities (T) (A) The customer may not assign or transfer (e.g., mergers, (M) acquisitions, consolidations) the use of services provided under this tariff except, where there is no interruption of use or relocation of the services, such assignment or (M) transfer may be made to: (T) (1) Another customer, whether an individual, partnership, (M) association or corporation, provided the assignee or transferee assumes all outstanding indebtedness for such services, the unexpired portion of the minimum period and the termination liability applicable to (M) such services, if any; or (T) (2) A court appointed receiver, trustee or other person (M) acting pursuant to law in bankruptcy, receivership, reorganization, insolvency, liquidation or other similar proceedings, provided the assignee or transferee assumes the unexpired portion of the minimum period and the termination liability (M) applicable to such services, if any. (T) (B) In all cases of assignment or transfer, the written (M) acknowledgment of the Telephone Company is required prior (M) to such assignment or transfer and such acknowledgment (T) shall be made within fifteen (15) days from the receipt of (M) notification. The assignee or transferee (new customer) shall provide to the Telephone Company the written release of the use of such services from the assignor or transferor (M) (former customer). All regulations, conditions and (T) applicable charges, as set forth in this tariff, shall (M) apply to such assignee or transferee. (T) (C) The assignment or transfer of services does not relieve or (M) discharge the assignor or transferor from remaining jointly or severally liable with the assignee or transferee for any obligations existing at the time of the assignment or transfer.

Material and revised material appearing on this page formerly appeared on 8th Revised Pages 25 and 26 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-26 Cancels Original Page 2-26

ACCESS SERVICE

2. General Regulations (Cont'd)

2.2 Use (Cont'd)

2.2.2 Unlawful and Abusive Use

(A) The services provided under this tariff shall not be used for an unlawful purpose or used in an abusive manner.

Abusive use includes:

(1) The use of the service of the Telephone Company for a call or calls, anonymous or otherwise, in a manner reasonably expected to frighten, abuse, torment or harass another; or

(2) The use of the service in such a manner as to interfere unreasonably with the use of the service by (T) one or more other customers.

(B) The Telephone Company shall, upon written request from a customer, another exchange telephone company or lawful authority, terminate service to any subscriber or customer identified as having utilized service provided under this tariff in the completion of abusive or unlawful telephone calls. Service shall be terminated by the Telephone Company as provided for in its General Exchange Tariffs.

(C) In such instances when termination occurs, as in (B) preceding, the Telephone Company shall be indemnified, defended and held harmless by the customer or any other exchange telephone company or party against any claim, loss or damage arising from the Telephone Company's actions in terminating such service, unless caused by the Telephone Company's negligence.

(This page filed under Transmittal No. 3284 )

Effective: September 2, 2009

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-27

ACCESS SERVICE

(M) 2. General Regulations (Cont'd) (T) 2.3 Obligations of the Customer

2.3.1 Design of Customer Services (T) Subject to the provisions set forth in 2.1.4(F) and (G), the (M) customer shall be solely responsible, at its own expense, for the overall design of its services and for any redesigning or rearrangement of its services which may be required because of changes in facilities, operations or procedures of the Telephone Company, minimum network protection criteria, operating or maintenance characteristics of the facilities.

Material and revised material appearing on this page formerly appeared on 2nd Revised Page 28 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-28

ACCESS SERVICE

(M) 2. General Regulations (Cont'd) (T) 2.3 Obligations of the Customer (Cont'd)

2.3.2 Connections (T) Equipment and/or systems (i.e., termination equipment, multiline (M) terminating systems and communications systems) may be connected (T) with Switched and Special Access Service furnished by the (T) Telephone Company, where such connection is made in accordance (M) with the provisions specified in Reference Publication AS No. 1, Issue II and in 2.1 (Undertaking of the Telephone Company).

Material and revised material appearing on this page formerly appeared on 3rd Revised Page 43 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-29

ACCESS SERVICE

(M) 2. General Regulations (Cont'd) (M) 2.3 Obligations of the Customer (Cont'd) (T) 2.3.3 Equipment, Space and Power (T) The customer shall furnish, or arrange to have furnished, to the (M) Telephone Company, at no charge, an environment conducive to the (T) operation of equipment, as well as the space and electrical power (M) required by the Telephone Company to provide services under this tariff at the points of termination of such services. The selection of ac or dc power shall be mutually agreed to by the customer and the Telephone Company. The customer shall also make necessary arrangements in order that the Telephone Company will have access to such spaces at reasonable times for installing, testing, repairing or removing services of the Telephone Company.

Material and revised material appearing on this page formerly appeared on 7th Revised Page 27 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-30

ACCESS SERVICE

(M) 2. General Regulations (Cont'd) (M) 2.3 Obligations of the Customer (Cont'd) (T) 2.3.4 Balance (M) All signals for transmission over the services provided under (M) this tariff shall be delivered by the customer balanced to ground (T) except for ground start, duplex (DX) and McCulloh-Loop type (M) signaling and dc telegraph transmission at speeds of 75 baud or less.

Material and revised material appearing on this page formerly appeared on 1st Revised Page 29 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-31

ACCESS SERVICE

(M) 2. General Regulations (Cont'd) (M) 2.3 Obligations of the Customer (Cont'd) (T) 2.3.5 Coordination with Respect to Network Contingencies (M) The customer shall, in cooperation with the Telephone Company, coordinate in planning the actions to be taken to maintain maximum network capability following natural or man-made disasters which affect telecommunications services. (M) The customer shall provide the Telephone Company notification of (T) media stimulated mass calling events (e.g., 800, 900, opinion │ polls, POTS, etc. calls placed in response to television and (T) radio advertising). Specific provisions relating to customer (M) report requirements for media stimulated mass calling events are contained in 6.5.11 (Media Stimulated Mass Calling Events).

Material and revised material appearing on this page formerly appeared on 11th Revised Page 30 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-32

ACCESS SERVICE

(M) 2. General Regulations (Cont'd) (M) 2.3 Obligations of the Customer (Cont'd) (T) 2.3.6 References to the Telephone Company (M) The customer may advise end users that certain services are (M) provided by the Telephone Company in connection with the service (T) the customer furnishes to end users. However, the customer shall (M) not represent that the Telephone Company jointly participates in the customer's services.

Material and revised material appearing on this page formerly appeared on 2nd Revised Page 28 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-33

ACCESS SERVICE

(M) 2 General Regulations (Cont'd) (M) 2.3 Obligations of the Customer (Cont'd) (T) 2.3.7 Damages (M) The customer shall reimburse the Telephone Company for damages to the Telephone Company facilities utilized to provide services under this tariff caused by the negligence or willful act of the customer or resulting from the customer's improper use of the Telephone Company facilities, or due to malfunction of any facilities or equipment provided by other than the Telephone Company. Nothing in the foregoing provision shall be interpreted (M) to hold one customer liable for another customer's actions. Upon (T) reimbursement for damages, the Telephone Company will cooperate (T) with the customer in prosecuting a claim against the person (M) causing such damage. The customer shall be subrogated to the (M) right of recovery by the Telephone Company for the damages to the extent of such payment.

Material and revised material appearing on this page formerly appeared on 7th Revised Page 27 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-34

ACCESS SERVICE

(M) 2 General Regulations (Cont'd) (M) 2.3 Obligations of the Customer (Cont'd) (T) 2.3.8 Claims and Demands for Damages (M) (A) With respect to claims of patent infringement made by third (T) persons, the customer shall defend, indemnify, protect and (M) save harmless the Telephone Company from and against all claims arising out of the combining with, or use in connection with, the services provided under this tariff, any circuit, apparatus, system or method provided by the customer. (M) (B) The customer shall defend, indemnify and save harmless the (T) Telephone Company from and against any suits, claims and (T) losses or damages, including punitive damages, attorneys (M) fees and court costs by third persons, arising out of the (M) construction, installation, operation, maintenance or (T) removal of the customer's circuits, facilities or equipment (M) connected to the Telephone Company's services provided under this tariff including, without limitation, Workmen's Compensation claims, actions for infringement of copyright and/or unauthorized use of program material, libel and slander actions based on the content of communications transmitted over the customer's circuits, facilities or (M) equipment, and proceedings to recover taxes, fines or (T) penalties for failure of the customer to obtain or maintain, in effect, any necessary certificates, permits, licenses or other authority to acquire or operate the (T) services provided under this tariff, provided; however, the (T) foregoing indemnification shall not apply to suits, claims (M) and demands to recover damages for damage to property, (T) death or personal injury unless such suits, claims or (M) demands are based on the tortious conduct of the customer, its officers, agents or employees.

Material and revised material appearing on this page formerly appeared on 1st Revised Page 29 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 2-35 Cancels 8th Revised Page 2-35

ACCESS SERVICE

2. General Regulations (Cont'd)

2.3 Obligations of the Customer (Cont'd)

2.3.9 Customer Provided Reports

Customers may be required to provide the following reports in connection with the provision of access service. The specific report requirements are provided in other sections of this tariff as set forth following.

Tariff Customer Provided Reports Section No.

Percentage of Interstate Use (PIU) 2.4.1 Special Access Certification Requirements 2.4.3 (T) Percent Common Line Report 3.3.2(B)(3) Resold MTS and MTS-Type Usage Report 3.3.4(F) 800 Number Portability Access Service 2.4.1(A)(6) (T) Media Stimulated Mass Calling Events 6.7.12 (T) Percent Direct Routed Reports 6.7.16 CCS/SS7 Forecast Report 23.3.5 Percent Tandem Signaling Factor 6.7.17 Tandem Signaling Terminating Billing Data 6.7.18

2.3.10 VoIP – PSTN Traffic

This Section applies to Toll VoIP-PSTN Traffic exchanged between the Telephone Company and the Customer in time division

multiplexing (“TDM”) format that originates and/or terminates in Internet protocol (“IP”) format. VoIP-PSTN traffic originates and/or terminates in IP format if it originates from and/or terminates to an end-user Customer of a service that requires Internet protocol-compatible Customer premises equipment. The

Switched Access rate elements in this tariff for both usage and facilities apply to any Toll VoIP–PSTN traffic.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-36 Cancels 9th Revised Page 2-36

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports

When Access Services, except for the following:

- Special Access Services, (D) - MegaLink Custom Service, and - Self-Healing Transport Network (STN)

are provided for both interstate and intrastate use, monthly rates, usage rates, and nonrecurring charges are prorated between interstate and intrastate on the basis of the projected interstate percentage of use (PIU) as set forth in 2.4.1 (Percentage of Interstate Use for Arkansas, Kansas, Missouri and Oklahoma) and 2.4.2 (Percentage of Interstate Use for Texas).

Special Access circuits (lines), MegaLink Custom Services and Digital (D) Transmission Links (DTLs) from an STN are classified as interstate or intrastate based upon the percentage of interstate use as set forth in 2.4.3 (Special Access Certification Requirements).

Expanded Interconnection is classified as interstate or intrastate based upon the percentage of interstate use as set forth in 2.4.1(A)(13) and 2.4.2(A)(8) (Expanded Interconnection).

Where the jurisdiction can be determined from the call detail, the Telephone Company will bill according to such jurisdiction by developing a projected interstate percentage. Where call detail is insufficient to determine jurisdiction, the customer will provide a projected percentage of interstate use (PIU). Jurisdictional percentages are expressed as a whole number (i.e., a number from 0 to 100). Provisions regarding PIU are set forth in 2.4.1 and 2.4.2 following. The Telephone Company will utilize the PIU report to determine interstate and intrastate rates and charges until a revised report is received from the customer, as set forth in 2.4.1(B) for Arkansas, Kansas, Missouri and Oklahoma and 2.4.2(B) for Texas.

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-36.1 Cancels Original Page 2-36.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

Where the customer orders new trunks that augment an existing trunk (N) group that carries both interstate and intrastate traffic and the PIU is determined from the actual call detail, the PIU applied to the provisioning and billing of the new trunks requested by the customer will also be determined from the actual call detail for the entire trunk group. In such instances, the Access Service Request used by the customer to order the new trunks cannot reflect a PIU of 100%. (N)

Customer provided PIUs must be furnished to the Telephone Company as follows:

Initial customer provided PIU factors for FGA, FGB, BSA-A, BSA-B (except for FGB and BSA-B used to provide 900 Service), Directory Assistance Access Service and Special Access Services must be furnished on the Access Service Request used to establish the service.

All other customer provided PIU factors, including all PIU factors provided in a report update, must be furnished via a letter. PIU factors provided via a letter will be kept on file and customers can designate when such PIUs are to apply to new or existing services. Such designations may only be made for those customer provided PIU factors that can be furnished via a letter.

A projected PIU is not required for the International Blocking Miscellaneous Service. International Blocking is an interstate offering only. Charges will not be prorated between the intrastate and interstate jurisdictions.

(This page filed under Transmittal No. 2803 )

Issued: January 12, 2000 Effective: January 27, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-37 Cancels 9th Revised Page 2-37

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd) (C) 2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri (C) and Oklahoma

(A) Report Requirements for Ordering Access Services

(1) Originating and Terminating FGA, FGB, BSA-A and BSA-B Services

Upon ordering FGA, FGB, BSA-A or BSA-B Switched Access Services where call details are insufficient to determine jurisdiction, the customer will provide an interstate percentage of FGA, FGB, BSA-A or BSA-B originating and terminating access minutes for each end office or LATA from which the customer may (T) originate or terminate traffic. If a LATA-level PIU factor is provided by the customer, the specified percentage will be applied to all end offices from which the customer may originate or terminate traffic within the LATA or to those end offices for which an (T) end office-level PIU is not provided.

For FGA, FGB, BSA-A and BSA-B, the customer may provide a PIU factor for each Billing Account Number (BAN) within the LATA in lieu of an end office-level PIU. If a LATA-level PIU factor is provided by the customer, the specified percentage will be applied to (T) all BANs for which a BAN-level PIU is not provided.

Pursuant to Federal Communications Commission Order FCC 85-145 (adopted April 16, 1985), when the customer does not have sufficient data to determine jurisdiction, the percent interstate usage is to be developed as though every call that enters the customer's network at a point within the same state as that in which the called station is situated (as designated by the called station number) is an intrastate communication. Every call for which the point of entry is in a state other than that where the called station is situated (as designated by the called station number) is an interstate communication.

Material is filed under authority of Special Permission No. 94-202 of the F.C.C.

(This page filed under Transmittal No. 2333 )

Issued: February 18, 1994 Effective: February 24, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-38 Cancels 3rd Revised Page 2-38

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements for Ordering Access Services (Cont'd)

(2) Originating and Terminating FGD and BSA-D Switched (D) Access Services

(a) Originating

For FGD or BSA-D Switched Access Services, where (D) jurisdiction can be determined from the call detail, the Telephone Company will bill according to such jurisdiction by developing a projected interstate percentage. The projected interstate percentage will be developed on a monthly basis, by end office, when the Switched Access Service access minutes (FGD and BSA-D) are measured by (D) dividing the measured interstate originating access minutes (the access minutes where the calling number is in one state and the called number is in another state) by the total originating access minutes.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 2-38.1 Cancels 10th Revised Page 2-38.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements for Ordering Access Services (Cont'd)

(2) Originating and Terminating FGD and BSA-D Switched (D) Access Services (Cont'd)

(b) Terminating

For FGD or BSA-D Switched Access Services, where (D) jurisdiction can be determined from the call detail, the Telephone Company will bill according to such jurisdiction by developing a projected interstate percentage. The projected interstate percentage will be developed on a monthly basis, by end office, when the Switched Access Service access minutes (FGD and BSA-D) are measured by (D) dividing the measured interstate terminating access minutes (the access minutes where the calling number is in one state and the called number is in another state) by the total terminating access minutes.

For FGD and BSA-D Switched Access Services where call details are insufficient to determine jurisdiction, the customer will provide an interstate percentage of FGD or BSA-D terminating (D) access minutes for each end office or LATA from which the customer may terminate traffic. If a LATA-level PIU factor is provided by the customer, the specified percentage will be applied to all end offices to which the customer may terminate traffic within the LATA or to those end offices for which an end office-level PIU is not provided.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 2-39 Cancels 11th Revised Page 2-39

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements for Ordering Access Services (Cont'd)

(2) Originating and Terminating FGD and BSA-D Switched (D) Access Services (Cont'd)

(b) Terminating (Cont'd)

If the customer does not provide the Telephone Company with a PIU factor for their terminating FGD or BSA-D traffic, the Telephone Company will develop a PIU factor for such terminating access minutes by utilizing the data used to develop the PIU for any other terminating FGD or BSA-D usage at that end office. The Telephone Company developed percentage will be based on the average of the customer’s other terminating FGD and/or BSA-D usage where jurisdiction can be determined for the call detail.

If the customer does not provide the Telephone Company with a PIU factor for their terminating traffic or if the customer has no additional (D) terminating FGD or BSA-D traffic within that end office from which a PIU factor can be developed, the Telephone Company will develop a PIU factor for such terminating access minutes utilizing the data used to develop the PIU for the originating access minutes. The Telephone Company developed percentage will be based on the average of the customer's originating FGD or BSA-D usage. (D) If the customer has no originating traffic within the end office for which sufficient call detail exists to develop an interstate percentage, the Telephone Company will designate a PIU factor of 50% for FGD or BSA-D terminating access minutes. (D) (3) Dedicated Network Access Link (DNAL) BSA

Upon ordering Switched Access DNAL BSA, the customer will provide an interstate percentage of use for each DNAL BSA requested.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 2-40 Cancels 6th Revised Page 2-40

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri (C) and Oklahoma (Cont'd) (C)

(A) Report Requirements (Cont'd)

(4) FGD or BSA-D with 950 Access

Upon ordering FGD or BSA-D with 950 Access Service, where call details are insufficient to determine jurisdiction, the customer shall provide an interstate percentage of FGD or BSA-D with 950 Access minutes for each end office or LATA from which the customer may originate traffic. If a LATA-level PIU factor is provided by the customer, the specified percentage will be applied to all end offices from which the customer may originate traffic within the LATA or to those end offices for which an end office-level PIU is not provided.

Where the FGD or BSA-D with 950 Access feature is (C) available in the intrastate jurisdiction and the PIU factor is not available, the Telephone Company will designate a PIU factor of 50% for FGD or BSA-D with 950 Access originating access minutes. (C)

Material is filed under authority of Special Permission No. 94-202 of the F.C.C.

(This page filed under Transmittal No. 2333 )

Issued: February 18, 1994 Effective: February 24, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 2-41 Cancels 12th Revised Page 2-41

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements (Cont'd)

(5) Miscellaneous Access Services

Upon ordering the specific Access Services listed below for which call details are insufficient to determine jurisdiction, the customer will provide an interstate percentage of such miscellaneous access service traffic for each end office or LATA from which the customer may originate or terminate such traffic. The following services are to be included in the Miscellaneous Access Services PIU Report:

- Answer Supervision-Line Side - Directory Assistance Service (D) - MicroLink II Service(1) - Selective Class of Call Screening

If a LATA-level Miscellaneous PIU factor is provided by the customer, the specified percentage will be applied to all end offices from which the customer may originate or terminate such access traffic within the LATA or to those end offices for which an end office-level PIU is not provided.

For Directory Transport Services, a Miscellaneous PIU factor must be provided for Entrance Facilities, Direct- Trunked Transport and Tandem-Switched Transport as set forth in 2.4.1(A)(11) (Switched Transport Services) following.

(1) As of October 6, 2004, MicroLink II service utilizing the X.75 protocol is obsolete and limited to existing installations, at existing locations, for existing customers.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 2-42 Cancels 8th Revised Page 2-42

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements (Cont'd)

(6) 800 Number Portability Access Service (NPAS)

The jurisdictional report requirements for 800 NPAS will apply to 800 access minutes and queries.

For 800 NPAS, where jurisdiction can be determined from the call detail, the Telephone Company will bill according to such jurisdiction by developing a projected interstate percentage. The projected interstate percentage will be developed on a monthly basis, by end office, when the 800 NPAS access minutes are measured by dividing the measured interstate originating 800 NPAS access minutes (the access minutes where the calling number is in one state and the called number is in another state) by the total originating 800 NPAS access minutes.

For 800 NPAS, where the call detail is insufficient to determine jurisdiction, the customer will provide an interstate percentage of 800 NPAS originating access minutes for each end office or LATA from which the customer may originate 800 traffic. The 800 NPAS PIU report shall also reflect an interstate percentage of terminating 800 access minutes for each end office or LATA from which the customer terminates FGD and BSA-D (D) traffic. If a LATA-level PIU factor is provided by the customer, the specified percentage will be applied to all end offices to which the customer may originate or terminate traffic within the LATA or to those end offices for which an end office-level PIU is not provided.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 2-42.1 Cancels 7th Revised Page 2-42.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements (Cont'd)

(6) 800 Number Portability Access Service (NPAS) (Cont'd)

If a customer does not provide the Telephone Company with an originating 800 NPAS PIU report that will be used when the call detail is insufficient to determine jurisdiction, the Telephone Company will determine the interstate percentage of 800 NPAS usage as follows:

(a) The Telephone Company will develop an interstate percentage on a monthly basis for each end office by dividing the customer's measured interstate originating access minutes by the customer's total originating access minutes for which sufficient call detail exist to determine the jurisdiction.

(b) If the customer has no other traffic within the end office for which sufficient call detail exists to develop an interstate percentage, the Telephone Company will determine an interstate percentage based on an average of all interstate 800 NPAS access minutes originating within the LATA.

For 800 traffic terminated over FGD and BSA-D Access (D) Service, the Telephone Company will apply the PIU factor provided by the customer in their terminating FGD or BSA-D PIU report. If such a PIU has not been (D) provided, the Telephone Company will apply a PIU factor as specified in 2.4.1(A)(2)(b).

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-43 Cancels 9th Revised Page 2-43

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements (Cont'd)

(7) 900 Access Service

Customers ordering 900 Access Service must provide the Telephone Company with an originating FGB, FGD, BSA-B, (D) or BSA-D PIU report for 900 Access. The 900 Access (D) Service PIU report shall reflect an interstate percentage, by feature group or basic serving arrangement, of originating 900 Access Service access minutes for each end office or LATA from which the customer may originate 900 traffic. If a LATA-level PIU factor is provided by the customer, the specified percentage will be applied to all end offices to which the customer may originate traffic within the LATA or to those end offices for which an end office-level PIU is not provided.

If a customer does not provide the Telephone Company with an originating 900 PIU report, the Telephone Company will determine the interstate percentage of 900 Access Service usage as follows:

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 2-43.1 Cancels 8th Revised Page 2-43.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements (Cont'd)

(7) 900 Access Service (Cont'd)

For 900 Access Service originated over FGB, FGD, BSA- (D) B, and BSA-D Switched Access Service, the Telephone (D) Company will develop an interstate percentage on a monthly basis for each end office by dividing the customer's measured interstate originating access minutes by the customer's total originating access minutes for which sufficient call detail exists to determine the jurisdiction.

If the customer has no other traffic within the end office for which sufficient call detail exists to develop an interstate percentage, the Telephone Company will determine an interstate percentage based on an average of all interstate 900 Access Service usage originating within the LATA.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-44 Cancels 9th Revised Page 2-44

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements (Cont'd)

(8) Billing Name and Address Service (S)

Upon ordering Billing Name and Address (BNA) Service, (S) the customer will provide an interstate percentage of billing name and address requests. The BNA Service (S) PIU will be based on the jurisdiction of the total calls for which the BNA information is requested. The BNA Service PIU will be applied to the BNA Service rates and charges.

Reissued material is filed under authority of Special Permission No. 94-393 of the F.C.C. and is deferred until April 23, 1994.

(This page filed under Transmittal No. 2346 )

Issued: April 7, 1994 Effective: April 9, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 2-45 Cancels 11th Revised Page 2-45

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements (Cont'd)

(9) Common Channel Signaling/Signaling System 7 (CCS/SS7) Interconnection Service

Customers ordering Common Channel Signaling/Signaling System 7 (CCS/SS7) Interconnection Service must provide the Telephone Company with a CCS/SS7 Interconnection Service PIU Report per Signaling Transfer Point (STP) Port Termination. The customer will provide a PIU that is an average PIU based upon the jurisdiction of the originating end user calls that require use of the specified STP Port Termination for signaling purposes. The STP Port Termination PIU will also be applied to the customer's STP Access Mileage and STP Access Connection charges.

(T)

(10) Line Information Data Base (LIDB) Service (S)

Upon ordering LIDB Service, the customer will provide (S) an interstate percentage of LIDB queries. The LIDB (S) Service PIU will be an average PIU based on the jurisdiction of the originating end user calls for which the Telephone Company's LIDB is queried and is to be developed from the customer's total national Alternate Billing Services (ABS) call volumes. The LIDB Service PIU will be applied to the LIDB Service rates and charges.

Reissued material is scheduled to become effective April 14, 1997.

Reinstates previous language which can be found on 5th Revised Page 2-45.

(This page filed under Transmittal No. 2618 )

Issued: March 4, 1997 Effective: March 11, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-45.1 Cancels 3rd Revised Page 2-45.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri (C) and Oklahoma (Cont'd) (C)

(A) Report Requirements (Cont'd)

(11) Switched Transport Services (T)

(a) Entrance Facilities and Direct-Trunked Transport (T)

Customers ordering an Entrance Facility or a Direct-Trunked Transport facility must provide the Telephone Company with an interstate percentage of use reflecting the originating and terminating traffic of all Switched Access services that will use the facility. Also, when a customer adds additional or new Switched Access Services to existing Entrance Facilities or Direct-Trunked Transport facilities, a revised PIU, as set forth in 2.4.1(B) (Report Updates) is required.

The customer must provide a PIU factor for each Entrance Facility and a separate PIU factor for each Direct-Trunked Transport facility. At the customer's discretion, a LATA-level PIU factor can be provided for all Entrance Facilities within the LATA or a separate LATA-level PIU factor can be provided for all Direct-Trunked Transport facilities provided in a LATA. If a LATA-level PIU factor is provided by the customer, the specified percentage will be applied to all Entrance Facilities or to all Direct-Trunked Transport facilities within the LATA or to those facilities for which a specific Entrance Facility PIU or a specific Direct- Trunked Transport PIU is not provided.

Material is filed under authority of Special Permission No. 94-202 of the F.C.C.

(This page filed under Transmittal No. 2333 )

Issued: February 18, 1994 Effective: February 24, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 2-45.2 Cancels 8th Revised Page 2-45.2

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements (Cont'd)

(11) Switched Transport Services (Cont'd)

(b) Tandem-Switched Transport

Customers ordering Tandem-Switched Transport must provide the Telephone Company with an interstate percentage of use as set forth following:

Usage rated charges (such as Tandem-Switched Transmission, Tandem-Switched Directory Transmission, Tandem Switching and Directory Tandem Switching) shall be apportioned by the Telephone Company between interstate and intrastate based upon the PIUs used to apportion the rates and charges for the tandem routed feature groups and BSAs using the facility.

For monthly recurring rates (such as Direct- Trunked Transport) and for nonrecurring charges, (C) the customer must provide a PIU as set forth in (a) preceding for Direct-Trunked Transport.

(12) Telecommunications Relay Interconnection Service (TRIS)

Upon ordering TRIS, the customer will provide an interstate percentage of use for each TRIS facility requested.

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 15th Revised Page 2-45.3 Cancels 14th Revised Page 2-45.3

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements (Cont'd)

(13)

Reissued material is filed under authority of Special Permission No. 96-238 of the F.C.C. and is deferred until April 12, 1996.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141 and subsequent associated Commission orders.

(This page filed under Transmittal No. 2540 )

Issued: February 29, 1996 Effective: March 1, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 14th Revised Page 2-45.4 Cancels 13th Revised Page 2-45.4

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements (Cont'd)

(13)

(14) Multiple 64 Clear Channel Capability (64 CCC)

Upon ordering FGD or BSA-D with the Multiple 64 CCC feature, the customer must provide both an originating and terminating PIU for FGD or BSA-D with the Multiple 64 CCC feature for each end office or LATA from which the customer may originate or terminate such traffic. The PIU will apply when call detail is insufficient to determine jurisdiction.

Reissued material is filed under authority of Special Permission No. 96-238 of the F.C.C. and is deferred until April 12, 1996.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141 and subsequent associated Commission orders.

(This page filed under Transmittal No. 2540 )

Issued: February 29, 1996 Effective: March 1, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 2-45.5 Cancels 6th Revised Page 2-45.5

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements (Cont'd)

(15) Advanced Carrier Identification Service (ACIS)

Customers ordering Advance Carrier Identification Service (ACIS) must provide the Telephone Company with an originating FGB, FGD, BSA-B, or BSA-D PIU (D) Report for ACIS. The ACIS PIU report shall reflect an interstate percentage, by feature group or basic serving arrangement, of originating ACIS access minutes for each end office or LATA from which the customer may originate ACIS traffic. If a LATA-level PIU factor is provided by the customer, the specified percentage will be applied to all end offices to which the customer may originate traffic within the LATA or to those end offices for which an end office- level PIU is not provided.

If a customer does not provide the Telephone Company with an originating ACIS PIU report, the Telephone Company will determine the interstate percentage of ACIS usage as follows:

For ACIS originated over FGD and BSA-D Switched (D) Access Service, the Telephone Company will develop an interstate percentage on a monthly basis for each end office by dividing the customer's measured interstate originating access minutes by the customer's total originating access minutes for which sufficient call detail exists to determine the jurisdiction. If the customer has no other traffic within the end office for which sufficient call detail exists to develop an interstate percentage, the Telephone Company will determine an interstate percentage based on an average of all interstate ACIS usage originating within the LATA.

For ACIS originated over FGB or BSA-B Switched Access Service, the Telephone Company will determine an interstate percentage based on an average of all interstate ACIS usage originating within the LATA.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-45.6 Cancels 9th Revised Page 2-45.6

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(A) Report Requirements (Cont'd)

(16) 700 Access Service

Upon ordering FGD or BSA-D, the customer must provide the Telephone Company with an originating PIU for 700 Access Service. The 700 Access Service PIU report shall reflect an interstate percentage, by feature group or basic serving arrangement, of originating 700 Access Service access minutes for each end office or LATA from which the customer may originate 700 traffic. If a LATA-level PIU factor is provided by the customer, the specified percentage will be applied to all end offices to which the customer may originate traffic within the LATA or to those end offices for which an end office-level PIU is not provided.

If a customer does not provide the Telephone Company with an originating 700 PIU report, the Telephone Company will designate a PIU factor of 17% for 700 Access Service.

(17) (D)

(D)

(18) Incidental InterLATA SS7 Transport (SS7 Transport)

For SS7 Transport, where jurisdiction can be determined from the records, the Telephone Company will bill according to such jurisdiction by developing a projected interstate percentage. The projected interstate percentage will be developed on a monthly basis, by Originating Point Code (OPC).

When the Telephone Company receives insufficient records to determine the jurisdiction of the customer's use of the STP and the SS7 Transport Service is available in the intrastate jurisdiction, the Telephone Company will designate a PIU factor of 50% for the use of the STP octets of information.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-45.7 Cancels 4th Revised Page 2-45.7

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(B) Report Updates

The customer is required to provide updates to the PIU reports described in (A) preceding. Upon receipt by the Telephone Company, the revised report will serve as the basis for future billing and will be effective on the next bill date for that service. No prorating or backbilling will be done based on the report. The revised report will be used by the Telephone Company to apportion usage rates, monthly rates and nonrecurring charges until a subsequent revised report is received as set forth herein.

(1) Quarterly Update Requirements

(a) Effective on the first of January, April, July and October of each year, the customer will update the PIU reports. The customer will forward to the Telephone Company, to be received no later than fifteen (15) business days after the first of each such month, a revised report showing the interstate and intrastate percentage of use for the past three months ending the last day of December, March, June and September, respectively, for each service arranged for interstate use. The revised report will serve as the basis for the next three months billing.

(This page filed under Transmittal No. 2511 )

Issued: October 26, 1995 Effective: December 10, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-45.8 Cancels 3rd Revised Page 2-45.8

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(B) Report Updates (Cont'd)

(1) Quarterly Update Requirements (Cont'd)

(b) For all services other than terminating FGD and (D) BSA-D Access Services, 700 Access Service, 800 NPAS, 900 Access Service and ACIS, when the customer does not provide a quarterly update report, the Telephone Company will assume the percentages to be the same as those provided in the last quarterly update report received by the Telephone Company. If the Telephone Company has never received a quarterly update report from the customer, the Telephone Company will assume the percentages to be the same as those provided by the customer when ordering service. If the customer did not provide an interstate percentage at the time service was ordered, the Telephone Company will assume the percentage to be 50%.

For terminating FGD and BSA-D Access Services, if (D) the customer does not provide a quarterly update report, the Telephone Company will assume the percentages to be the same as those provided in the last quarterly update report received by the Telephone Company. If the Telephone Company has never received a quarterly update report from the customer, the Telephone Company will utilize the default specified in (A)(2)(b), preceding. (T)

For 800 NPAS, 900 Access Service, ACIS and 700 Access Service, when the customer does not provide a quarterly update report, the Telephone Company will utilize the default specified in (A)(6), (7), (15) and (16), preceding. (T)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-46 Cancels 9th Revised Page 2-46

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(B) Report Updates (Cont'd) (D)

(2) Update Requirements for Adding To and Discontinuing Services

When a customer requires additional Access Services within the end office or LATA, the customer shall provide to the Telephone Company a revised PIU report for the overall services provided. Additionally, when a customer discontinues a portion of the Access Services within the end office or LATA, the customer shall provide to the Telephone Company a revised PIU for the overall remaining services.

(This page filed under Transmittal No. 2511 )

Issued: October 26, 1995 Effective: December 10, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 2-47 Cancels 7th Revised Page 2-47

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri (C) and Oklahoma (Cont'd) (C)

(B) Report Updates (Cont'd)

(3) Update Requirements for Modifications in Service Use (T) and Traffic Patterns (M)

When a customer modifies his use of Access Services within an end office or LATA in such a manner that substantially affects the jurisdiction of the traffic which the PIU represents, the customer is required to provide the Telephone Company a revised PIU report for the services affected.

Material is filed under authority of Special Permission No. 94-202 of the F.C.C.

Material appearing on this page formerly appeared on 8th Revised Page 2-48.

Material previously appearing on this page now appears on 7th Revised Page 2-46 and Original Page 2-52.11.

(This page filed under Transmittal No. 2333 )

Issued: February 18, 1994 Effective: February 24, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 2-48 Cancels 11th Revised Page 2-48

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(C) Application of PIU

The following provisions apply to usage rates, monthly rates and nonrecurring charges, with the exception of Special Access Services. When mixed interstate and (D) intrastate Access Services are provided, the charges will be prorated between interstate and intrastate as follows:

(1) Usage rates are prorated between interstate and intrastate based upon the PIU factors as set forth in 2.4.1(A).

(2) Monthly recurring rates and nonrecurring charges for FGA, BSA-A, FGB, BSA-B and Switched Transport Services will be prorated based upon the customer provided factors as set forth in 2.4.1(A).

(3) (a) All other monthly recurring rates, including the Dedicated End Office Port, and nonrecurring charges will be prorated based upon the PIU factor(s) applied to the customer's usage as set forth in 2.4.1(A).

(b) If the customer has no usage to which a PIU factor(s) can be applied, the Telephone Company will develop a customer-specific weighted PIU factor based upon other usage the customer may have within the LATA.

(c) If the customer has no usage available from which to calculate a customer-specified, weighted PIU factor for monthly recurring rates or nonrecurring charges, the Telephone Company will develop a generic PIU factor based upon all usage within the LATA.

When a PIU is applied to an Access Service provided as a BSA or BSE and the intrastate equivalent of the BSA or BSE is only available on a bundled feature group basis, intrastate usage and charges are prorated to the bundled feature group equivalent of the BSA. When the Access service is not available in the intrastate jurisdiction, the PIU factor must be 100%.

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-48.1 Cancels Original Page 2-48.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri (C) and Oklahoma (Cont'd) (C)

(C) Application of PIU (Cont'd)

When Switched Transport is provided as Entrance Facilities and Direct-Trunked Transport facilities in the interstate jurisdiction and as Local Transport in the intrastate jurisdiction, Switched Transport intrastate charges will be billed according to the specific PIU factors of the feature group or BSA services being provided.

The percentage of an Access Service to be charged as interstate is derived in the following manner:

1. Monthly and Nonrecurring Chargeable Rate Elements (M)

Multiply the projected interstate percentage of use times the quantity of chargeable elements times the stated tariff rate.

2. Usage Sensitive Chargeable Rate Elements

Multiply the projected interstate percentage of use times the actual use (i.e., measured or Telephone Company assumed average use in access minutes, calls, call setups, kilocharacters and queries) times the stated tariff rate.

The Telephone Company will determine the intrastate percentage by subtracting the projected interstate percentage for originating and terminating access minutes from 100 (100 - projected interstate percentage = intrastate percentage). (M)

Material is filed under authority of Special Permission No. 94-202 of the F.C.C.

Certain material appearing on this page formerly appeared on 3rd Revised Page 2- 49.

(This page filed under Transmittal No. 2333 )

Issued: February 18, 1994 Effective: February 24, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-49 Cancels 4th Revised Page 2-49

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(D) Report Verification

When a customer provides a projected interstate usage percent as set forth in 2.4.1(A) and/or 2.4.2(A), the Telephone Company may, on written request by Certified U.S. mail (return receipt requested), require the customer to provide call detail records which will be audited to substantiate the projected interstate usage factor provided to the Telephone Company. The Telephone Company may request this detailed information annually. If the audit results represent what the Telephone Company considers to be a substantial deviation from the customer's previously reported PIU for the period upon which the audit was based, and that deviation is not due to seasonal changes or other identifiable reasons, the call detail records may be requested more than once annually. The Telephone Company will request that the call detail records be made available to an independent auditor or the Telephone Company within thirty (30) days of the request at an agreed upon location during normal business hours.

(This page filed under Transmittal No. 2511 )

Issued: October 26, 1995 Effective: December 10, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-50 Cancels 3rd Revised Page 2-50

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd) (C) 2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri (C) and Oklahoma (Cont'd)

(D) Report Verification (Cont'd)

If the customer fails to comply with this request, the Telephone Company may refuse additional applications for service and/or refuse to complete any pending orders for service for a period of 30 days as set forth in 2.1.6(A)(1) preceding. If, at the conclusion of 30 days, the customer still does not comply with this request, the Telephone Company may discontinue the provision of the services to the customer as specified in 2.1.6(A)(2) preceding.

(1) Audit Verification Process

The audit verification process and responsible party(ies) for payment of audit expenses will be determined as set forth in (a) or (b) following:

(a) If the Telephone Company and the customer mutually agree upon an independent auditor and party(ies) responsible for payment of the audit expenses, both parties will be bound by such agreement; or

(b) The customer may select the independent auditor and pay all audit expenses.

If the audit verification process is not conducted as set forth in (a) or (b) preceding, the Telephone Company may select the independent auditor and pay all expenses or, in lieu of using an independent auditor, may require that the customer's call detail records used to substantiate the percent be supplied to the Telephone Company at a specified location within thirty (30) days of the request for verification purposes.

Material is filed under authority of Special Permission No. 94-202 of the F.C.C.

(This page filed under Transmittal No. 2333 )

Issued: February 18, 1994 Effective: February 24, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-51 Cancels 4th Revised Page 2-51

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(D) Report Verification (Cont'd)

(2) Maintenance of Customer Records

The customer shall retain and maintain call detail records, for a minimum 12 month period, that statistically substantiate the interstate percent provided to the Telephone Company as set forth in 2.4.1(A) and/or 2.4.2(A). Such call detail records (i.e., workpapers and/or backup documentation, including paper, magnetic tapes or any other form of records for billed customer traffic) shall consist of call information, including call terminating address (i.e., called number), the call duration, the trunk groups or access lines over which the call is routed and the point at which the call enters the customer's network.

If the Telephone Company determines that the customer's records, worksheets and backup documentation are insufficient or, if the customer does not provide the call detail records in accordance with the provisions set forth in this tariff, the Telephone Company shall request the call detail records on a prospective basis, not to exceed a three (3) month period. The customer shall revise the PIU report reflecting the audit results from such prospective records.

(This page filed under Transmittal No. 2511 )

Issued: October 26, 1995 Effective: December 10, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-52 Cancels 4th Revised Page 2-52

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(E) Audit Results

Audit results will be furnished to the customer and the Telephone Company via Certified U.S. Mail (return receipt requested). If the customer provided PIU substantially deviates from the audit results (either overreported or underreported), and that deviation is not due to seasonal changes or other identifiable reasons, the Telephone Company will adjust the customer's PIU based upon the audit results. Such PIU audit adjustments shall also be subject to the rules and regulations as set forth in 2.4.1 following. The adjusted PIU will serve as the basis for the billing for the next two (2) quarters. After that time, the customer will report a revised PIU pursuant to Section 2.4.1(B) and/or 2.4.2(B). If the revised PIU submitted by the customer represents a substantial deviation from the adjusted PIU, and that deviation is not due to seasonal changes or other identifiable reasons, the provisions in 2.4.1(D) will be invoked.

(F) Contested Audits

When a PIU audit is conducted by the Telephone Company or an independent auditor selected by the Telephone Company, the audit results will be furnished to the customer by Certified U.S. Mail (return receipt requested). The customer may contest the audit results by providing written notification, by Certified U.S. Mail (return receipt requested), to the Telephone Company within fifteen (15) calendar days from the date the audit report is furnished to the customer by Certified U.S. Mail (return receipt requested). When a PIU audit is conducted by an independent auditor selected by the customer, the audit results will be furnished to the Telephone Company by Certified U.S. Mail (return receipt requested). The Telephone Company may contest the audit results by providing written notification, by Certified U.S. Mail (return receipt requested), to the customer within fifteen (15) calendar days from the date the audit report is furnished to the Telephone Company by Certified U.S. Mail (return receipt requested).

(This page filed under Transmittal No. 2511 )

Issued: October 26, 1995 Effective: December 10, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-52.1 Cancels 3rd Revised Page 2-52.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma (Cont'd)

(F) Contested Audits (Cont'd)

Contested audits will be resolved by a neutral arbitrator mutually agreed upon by the Telephone Company and the customer. The arbitration hearing will be conducted in a state or location within the Telephone Company operating territory where the customer maintains a principle or significant presence or a state and location within the Telephone Company operating territory that is mutually agreed upon by both parties. The arbitration proceeding shall be governed by the law (both statutory and case) of the state in which the arbitration hearing is held, including, but not limited to, the Uniform Arbitration Act, as adopted in that state. The arbitrator shall determine the customer's PIU based on 2.4.1(A) and/or 2.4.2(A).

Prior to the arbitration hearing, each party shall notify the arbitrator of the PIU percentage which that party believes to be correct. The arbitrator, in deciding, may adopt the PIU percentage of either party or may adopt a PIU percentage different from those proposed by the parties. If the arbitrator adopts a PIU percentage proposed by one of the parties, the other party (whose PIU percentage was not adopted) shall pay all costs of the arbitration. If the arbitrator adopts a PIU percentage higher than either of the PIU percentages proposed by the parties, then the party proposing the lower PIU percentage shall pay all costs of the arbitration. If the arbitrator adopts a PIU percentage lower than either of the PIU percentages proposed by the parties, then the party proposing the higher PIU percentage shall pay all costs of the arbitration. If the arbitrator adopts a PIU percentage which falls between the two percentages adopted by the parties, then the parties shall each pay one-half of the arbitration costs.

(This page filed under Transmittal No. 2511 )

Issued: October 26, 1995 Effective: December 10, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-52.2 Cancels 2nd Revised Page 2-52.2

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri (C) and Oklahoma (Cont'd) (C)

(F) Contested Audits (Cont'd)

Absent written notification, within the timeframe noted above, the customer must comply with the provisions set forth in 2.4.1(E) preceding. If the customer fails to comply with these provisions, the Telephone Company may refuse additional applications for service and/or refuse to complete any and all pending orders for service for a period of 30 days as set forth in 2.1.6(A)(1) preceding. If, at the conclusion of 30 days, the customer still does not comply with the provisions set forth in 2.4.1(E), the Telephone Company may discontinue the provision of the services to the customer as specified in 2.1.6(A)(2) preceding.

Material is filed under authority of Special Permission No. 94-202 of the F.C.C.

(This page filed under Transmittal No. 2333 )

Issued: February 18, 1994 Effective: February 24, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 2-52.3 Cancels 6th Revised Page 2-52.3

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.2 Percentage of Interstate Use (PIU) for Texas

(A) Report Requirements for Ordering Access Services

(1) FGA, FGB, FGD, BSA-A, BSA-B, BSA-D (D) FGD or BSA-D with 950 Access 700 Access Service 800 Number Portability Access Service (NPAS) 900 Access Service Advanced Carrier Identification Service (ACIS) Directory Assistance Service MicroLink II Service(1)

(a) For services where jurisdiction can be determined from the call detail, the Telephone Company will bill according to such jurisdiction by developing a projected interstate percentage. The projected interstate percentage will be developed on a monthly basis, by end office, when the access service access minutes are measured by dividing the measured interstate originating or terminating access minutes (the access minutes where the calling number is in one state and the called number is in another state) by the total originating or terminating access minutes.

(b) Upon ordering services where call details are insufficient to determine jurisdiction, the customer will provide an interstate percentage of originating and terminating access minutes for each end office or LATA from which the customer may originate or terminate traffic. If a LATA- level PIU factor is provided by the customer, the specified percentage will be applied to all end offices to which the customer may originate or terminate traffic within the LATA or to those end offices for which an end office-level PIU is not provided.

(1) As of October 6, 2004, MicroLink service utilizing the X.75 protocol is obsolete and limited to existing installations, at existing locations, for existing customers.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-52.4 Cancels 2nd Revised Page 2-52.4

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.2 Percentage of Interstate Use (PIU) for Texas (Cont'd)

(A) Report Requirements for Ordering Access Services (Cont'd)

(1) (Cont'd)

(b) (Cont'd) (T)

For FGA, FGB, BSA-A and BSA-B, the customer may provide a PIU factor for each Billing Account Number (BAN) within the LATA in lieu of an end office-level PIU. If a LATA-level PIU factor is provided by the customer, the specified percentage will be applied to all BANs for which a BAN-level PIU is not provided.

For FGA, FGB, BSA-A and BSA-B, and pursuant to (T) Federal Communications Commission Order FCC 85- 145 (adopted April 16, 1985), when the customer does not have sufficient data to determine jurisdiction, the percent interstate usage is to be developed as though every call that enters the customer's network at a point within the same state as that in which the called station is situated (as designated by the called station number) is an intrastate communication. Every call for which the point of entry is in a state other than that where the called station is situated (as designated by the called station number) is an interstate communication.

(2) Dedicated Network Access Link (DNAL) BSA

Upon ordering Switched Access DNAL BSA, the customer will provide an interstate percentage of use for each DNAL BSA requested.

(3) Billing Name and Address Service

Upon ordering Billing Name and Address (BNA) Service, the customer will provide an interstate percentage of billing name and address requests. The BNA Service PIU will be based on the jurisdiction of the total calls for which the BNA information is requested. The BNA Service PIU will be applied to the BNA Service rates and charges.

(This page filed under Transmittal No. 2511 )

Issued: October 26, 1995 Effective: December 10, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 2-52.5 Cancels 6th Revised Page 2-52.5

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.2 Percentage of Interstate Use (PIU) for Texas (Cont'd)

(A) Report Requirements for Ordering Access Services (Cont'd)

(4) Common Channel Signaling/Signaling System 7 (CCS/SS7) Interconnection Service

Customers ordering Common Channel Signaling/Signaling System 7 (CCS/SS7) Interconnection Service must provide the Telephone Company with a CCS/SS7 Interconnection Service PIU Report per Signaling Transfer Point (STP) Port Termination. The customer will provide a PIU that is an average PIU based upon the jurisdiction of the originating end user calls that require use of the specified STP Port Termination for signaling purposes. The STP Port Termination PIU will also be applied to the customer's STP Access Mileage and STP Access Connection charges.

(T)

(5) Line Information Data Base (LIDB) Service (S)

Upon ordering LIDB Service, the customer will provide (S) an interstate percentage of LIDB queries. The LIDB (S) Service PIU will be an average PIU based on the jurisdiction of the originating end user calls for which the Telephone Company's LIDB is queried and is to be developed from the customer's total national Alternate Billing Services (ABS) call volumes. The LIDB Service PIU will be applied to the LIDB Service rates and charges.

Reissued material is scheduled to become effective April 14, 1997.

Reinstates previous language which can be found on Original Page 2-52.5.

(This page filed under Transmittal No. 2618 )

Issued: March 4, 1997 Effective: March 11, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-52.6

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd) (C) 2.4.2 Percentage of Interstate Use (PIU) for Texas (Cont'd) (T) (A) Report Requirements for Ordering Access Services (Cont'd)

(6) Switched Transport Services

(a) Entrance Facilities and Direct-Trunked Transport

Customers ordering an Entrance Facility or a Direct-Trunked Transport facility must provide the Telephone Company with an interstate percentage of use reflecting the originating and terminating traffic of all Switched Access services that will use the facility. Also, when a customer adds additional or new Switched Access Services to existing Entrance Facilities or Direct-Trunked Transport facilities, a revised PIU, as set forth in 2.4.2(B) (Report Updates) is required.

The customer must provide a PIU factor for each Entrance Facility and a separate PIU factor for each Direct-Trunked Transport facility. At the customer's discretion, a LATA-level PIU factor can be provided for all Entrance Facilities within the LATA or a separate LATA-level PIU factor can be provided for all Direct-Trunked Transport facilities provided in a LATA. If a LATA-level PIU factor is provided by the customer, the specified percentage will be applied to all Entrance Facilities or to all Direct-Trunked Transport facilities within the LATA or to those facilities for which a specific Entrance Facility PIU or a specific Direct- Trunked Transport PIU is not provided.

Material is filed under authority of Special Permission No. 94-202 of the F.C.C.

(This page filed under Transmittal No. 2333 )

Issued: February 18, 1994 Effective: February 24, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-52.7 Cancels 9th Revised Page 2-52.7

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.2 Percentage of Interstate Use (PIU) for Texas (Cont'd)

(A) Report Requirements for Ordering Access Services (Cont'd)

(6) Switched Transport Services (Cont'd)

(b) Tandem-Switched Transport

Customers ordering Tandem-Switched Transport must provide the Telephone Company with an interstate percentage of use as set forth following:

Usage rated charges (such as Tandem-Switched Transmission, Tandem-Switched Directory Transmission, Tandem Switching and Directory Tandem Switching) shall be apportioned by the Telephone Company between interstate and intrastate based upon the PIUs used to apportion the rates and charges for the tandem routed feature groups and BSAs using the facility.

For monthly recurring rates (such as Direct- Trunked Transport) and for nonrecurring charges, (C) the customer must provide a PIU as set forth in (a) preceding for Direct-Trunked Transport.

(7) Telecommunications Relay Interconnection Service (TRIS)

Upon ordering TRIS, the customer will provide an interstate percentage of use for each TRIS facility requested.

(8) Incidental InterLATA SS7 Transport (SS7 Transport)

For SS7 Transport, where jurisdiction can be determined from the records, the Telephone Company will bill according to such jurisdiction by developing a projected interstate percentage. The projected interstate percentage will be developed on a monthly basis, by Originating Point Code (OPC).

When the Telephone Company receives insufficient records to determine the jurisdiction of the customer's use of the STP and the SS7 Transport Service is available in the intrastate jurisdiction, the Telephone Company will designate a PIU factor of 50% for the use of the STP octets of information.

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 2-52.8 Cancels 10th Revised Page 2-52.8

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.2 Percentage of Interstate Use (PIU) for Texas (Cont'd)

(A) Report Requirements for Ordering Access Services (Cont'd)

(8)

Reissued material is filed under authority of Special Permission No. 96-238 of the F.C.C. and is deferred until April 12, 1996.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141 and subsequent associated Commission orders.

(This page filed under Transmittal No. 2540 )

Issued: February 29, 1996 Effective: March 1, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-52.9 Cancels 3rd Revised Page 2-52.9

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.2 Percentage of Interstate Use (PIU) for Texas (Cont'd)

(A) Report Requirements for Ordering Access Services (Cont'd)

(9) Multiple 64 Clear Channel Capability (64 CCC)

Upon ordering FGD or BSA-D with the Multiple 64 CCC feature, the customer must provide both an originating and terminating PIU for FGD or BSA-D with the Multiple 64 CCC feature for each end office or LATA from which the customer may originate or terminate such traffic. The PIU will apply when call detail is insufficient to determine jurisdiction.

(B) Report Updates

(1) Annual Requirements

The customer shall provide to the Telephone Company by April 15 of each year a written report which provides the methodology utilized by the customer to develop the PIU factors provided in the quarterly update report at set forth in 2.4.2(B)(2) following.

If the customer does not provide the annual report by April 15 of each year, the customer will be notified by certified mail that if the annual report is not received within thirty (30) calendar days of the receipt of the notice, the Telephone Company will designate a PIU factor of 50% for each service, with (S) the exception of originating 700 Access Service, arranged for interstate use. For originating 700 Access Service, the Telephone Company will designate a PIU factor of 17%. This factor will be applied to the next billing cycle following the thirty (30) day notice period and will be utilized until the customer provides an annual report. Once the customer does provide an annual report, the Telephone Company will update the customer's PIU factors within fifteen (15) business days utilizing the most current PIU factor reported by the customer.

Revised material issued under authority of Special Permission No. 95-186 of the F.C.C. is scheduled to become effective February 16, 1995, on not less than 3 days' notice.

Reissued material is scheduled to become effective February 16, 1995.

(This page filed under Transmittal No. 2428 )

Issued: February 13, 1995 Effective: February 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-52.10 Cancels 4th Revised Page 2-52.10

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.2 Percentage of Interstate Use (PIU) for Texas (Cont'd)

(B) Report Updates (Cont'd)

(2) Quarterly Update Requirements

The customer is required to provide updates to the PIU (T) reports described in (A) preceding. Upon receipt by the Telephone Company, the revised report will serve as the basis for future billing and will be effective on the next bill date for that service. No prorating or backbilling will be done based on the report. The revised report will be used by the Telephone Company to apportion usage rates, monthly rates and nonrecurring charges until a subsequent revised report is received as set forth herein.

(a) Effective on the first of January, April, July and October of each year, the customer will update the PIU reports. The customer will forward to the Telephone Company, to be received no later than fifteen (15) business days after the first of each such month, a revised report showing the interstate and intrastate percentage of use for the past three months ending the last day of December, March, June and September, respectively, for each service arranged for interstate use. The revised report will serve as the basis for the next three months billing.

Material previously appearing on this page now appears on 1st Revised Page 2-52.11.

(This page filed under Transmittal No. 2511 )

Issued: October 26, 1995 Effective: December 10, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-52.11 Cancels Original Page 2-52.11

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.2 Percentage of Interstate Use (PIU) for Texas (Cont'd)

(B) Report Updates (Cont'd) (M)

(2) Quarterly Update Requirements (Cont'd)

(b) When the customer does not provide a quarterly update report, but has complied with the annual report requirements set forth in 2.4.2(B)(1), the Telephone Company will assume the percentages to be the same as those provided in the last quarterly update report received by the Telephone Company. When the customer does not provide a quarterly update report and has not complied with the annual report requirements, the provisions set forth in 2.4.2(B)(1) will apply.

If the Telephone Company has never received a quarterly update report, the customer will be notified by certified mail that if the quarterly update report is not received within thirty (30) days of the receipt of the notice, the Telephone Company will designate a PIU factor of 50% for each service, with the exception of originating 700 Access Service, arranged for interstate use. For originating 700 Access Service, the Telephone Company will designate a PIU factor of 17%. This factor will be applied to the next billing cycle and continue until the customer provides a quarterly update report. When the customer does provide the quarterly update report, the Telephone Company will update the customer's PIU factors within fifteen (15) business days.

Material appearing on this page previously appeared on 4th Revised Page 2-52.10.

Material previously appearing on this page now appears on 1st Revised Page 2-52.12.

(This page filed under Transmittal No. 2511 )

Issued: October 26, 1995 Effective: December 10, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-52.12 Cancels Original Page 2-52.12

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.2 Percentage of Interstate Use (PIU) for Texas (Cont'd)

(B) Report Updates (Cont'd) (M)

(3) Exemption

FGA and BSA-A FX/ONAL services are exempt from the Report Update requirements set forth preceding.

(4) Update Requirements for Adding To and Discontinuing Services

When a customer requires additional Access Services within the end office or LATA, the customer shall provide to the Telephone Company a revised PIU report for the overall services provided. Additionally, when a customer discontinues a portion of the Access Services within the end office or LATA, the customer shall provide to the Telephone Company a revised PIU for the overall remaining services.

(5) Update Requirements for Modifications in Service Use and Traffic Patterns

When a customer modifies his use of Access Services within an end office or LATA in such a manner that substantially affects the jurisdiction of the traffic which the PIU represents, the customer is required to provide the Telephone Company a revised PIU report for the services affected.

Material appearing on this page previously appeared on Original Page 2-52.11.

Material and revised material previously appearing on this page now appears on Original Pages 2-52.13 and 2-52.14.

(This page filed under Transmittal No. 2511 )

Issued: October 26, 1995 Effective: December 10, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-52.13 Cancels 1st Revised Page 2-52.13

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.2 Percentage of Interstate Use (PIU) for Texas (Cont'd)

(C) Application of PIU

The following provisions apply to usage rates, monthly rates and nonrecurring charges, with the exception of Special Access Services. When mixed interstate and (D) intrastate Access Services are provided, the charges will be prorated between interstate and intrastate as follows:

(1) Usage rates are prorated between interstate and intrastate based upon the PIU factors as set forth in 2.4.2(A).

(2) Monthly recurring rates and nonrecurring charges for FGA, BSA-A, FGB, BSA-B and Switched Transport Services will be prorated based upon the customer provided factors as set forth in 2.4.2(A).

(3) All other monthly recurring rates, including the Dedicated End Office Port, and nonrecurring charges will be prorated based upon the PIU factor developed from the call detail of the customer's usage or from the customer provided PIU factor as set forth in 2.4.2(A), when such factors can be associated with the monthly recurring rate or nonrecurring charge.

(4) Where it is not possible to associate the PIU factor developed utilizing the call detail of the customer's usage or the customer provided PIU factor with a monthly rate or nonrecurring charge, a PIU factor of 50% will be applied to the monthly rate or nonrecurring charge.

When a PIU is applied to an Access Service provided as a BSA or BSE and the intrastate equivalent of the BSA or BSE is only available on a bundled feature group basis, intrastate usage and charges are prorated to the bundled feature group equivalent of the BSA.

When Switched Transport is provided as Entrance Facilities and Direct-Trunked Transport facilities in the interstate jurisdiction and as Local Transport in the intrastate jurisdiction, Switched Transport intrastate charges will be billed according to the specific PIU factors of the feature group or BSA services being provided. When the Access Service is not available in the intrastate jurisdiction, the PIU factor must be 100%.

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-52.14

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.2 Percentage of Interstate Use (PIU) for Texas (Cont'd) (M) (C) Application of PIU (Cont'd) (T) The percentage of an Access Service to be charged as interstate is derived in the following manner:

1. Monthly and Nonrecurring Chargeable Rate Elements

Multiply the projected interstate percentage of use times the quantity of chargeable elements times the stated tariff rate.

2. Usage Sensitive Chargeable Rate Elements

Multiply the projected interstate percentage of use times the actual use (i.e., measured or Telephone Company assumed average use in access minutes, calls, call setups, kilocharacters and queries) times the stated tariff rate.

The Telephone Company will determine the intrastate percentage by subtracting the projected interstate percentage for originating and terminating access minutes from 100 (100 - projected interstate percentage = (T) intrastate percentage). (M) (D) Report Verification

Provisions as set forth in 2.4.1(D) will apply.

(E) Audit Results

Provisions as set forth in 2.4.1(E) will apply.

(F) Contested Audits

Provisions as set forth in 2.4.1(F) will apply.

Material and revised material appearing on this page previously appeared on Original Page 2-52.12.

(This page filed under Transmittal No. 2511 )

Issued: October 26, 1995 Effective: December 10, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-53 Cancels 9th Revised Page 2-53

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.3 Certification Requirements

(A) Special Access Service, MegaLink Custom Services and Self- (D) healing Transport Network Service

(1) Special Access circuits* (lines), MegaLink Custom (D) Services, and Self-healing Transport Network (STN) Service are classified as interstate [percent interstate usage (PIU) = 100%] and provided in accordance with this tariff when the Special Access line(s), MegaLink Custom Services, or STN Service (D) carry more than ten percent interstate traffic. When the percent of interstate usage is less than or equal to ten percent, the Special Access line(s), MegaLink (D) Custom Services, or STN Service will be provided in accordance with the appropriate intrastate tariff.

(2) The customer shall certify whether or not interstate traffic is greater than ten percent of the total traffic carried on the Special Access line(s), (D) MegaLink Custom Services, or STN Service. This certification will be provided to the Telephone Company by the customer as follows:

(a) Via the Access Service Request (ASR) form when ordering the line(s), or (b) In the form of written correspondence with clear identification of each line involved and the customer designated jurisdiction associated with each line at the time that the line(s) are ordered other than by ASR form.

(3) With respect to billing disputes regarding the jurisdiction of Special Access circuits (lines), (D) MegaLink Custom Services, or STN Service, the customer shall be required to provide to the Telephone Company general information on system design and function that is used by the customer to determine the jurisdiction of Special Access circuits (lines), MegaLink Custom (D) Services, or STN Service.

* Each leg of a multipoint circuit is equal to one line.

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 2-54 Cancels 6th Revised Page 2-54

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.3 Certification Requirements (Cont'd)

(B) Expanded Interconnection (S)

(1) Expanded Interconnection, except for the cross connect, is classified as interstate {percent interstate usage (PIU) = 100%} and provided in accordance with this tariff when the expanded interconnection arrangement carries more than ten percent interstate traffic. A separate calculation shall be made for each expanded interconnection arrangement.

The jurisdiction for each expanded interconnection cross connect and switched transport connection shall be determined by the regulations applicable to the Switched or Special Access Service, to which that expanded interconnection cross connect is connected and provided accordingly. Such regulations are set forth in 2.4.1, 2.4.2 and 2.4.3(A) preceding.

(2) When the interconnector orders a new expanded interconnection arrangement, the interconnector shall certify whether or not interstate traffic is greater than ten percent of the total traffic carried on the expanded interconnection arrangement. For an existing expanded interconnection arrangement, or at any time the interconnector issues an order that would, in any way, affect the jurisdiction of traffic over its arrangement, it is the responsibility of the interconnector to determine whether or not the interstate traffic is greater than ten percent of the total traffic carried on the expanded interconnection arrangement. This certification will be provided to the Telephone Company by the interconnector as follows:

(a) Via the Expanded Interconnection Application Form when ordering the arrangement(s), or (b) In the form of written correspondence with clear identification of each expanded interconnection arrangement involved and the interconnector designated jurisdiction associated with the arrangement.

Reissued material is filed under authority of Special Permission No. 96-238 of the F.C.C. and is deferred until April 12, 1996.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141 and subsequent associated Commission orders.

(This page filed under Transmittal No. 2540 )

Issued: February 29, 1996 Effective: March 1, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-54.1 Cancels 1st Revised Page 2-54.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.4 Jurisdictional Reports (Cont'd)

2.4.3 Certification Requirements (Cont'd)

(B) Expanded Interconnection (Cont'd) (S)

(3) With respect to billing disputes regarding the jurisdiction of an expanded interconnection arrangement, the interconnector shall be required to provide to the Telephone Company general information on system design and functionality used by the interconnector to determine the jurisdiction of the expanded interconnection arrangement. If the interconnector has usage information or usage studies which it uses to verify the interstate traffic, the interconnector shall supply the studies when requested by the Telephone Company, not to exceed once per year. The interconnector shall supply the data within 30 days of the Telephone Company request.

Reissued material is filed under authority of Special Permission No. 96-238 of the F.C.C. and is deferred until April 12, 1996.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141 and subsequent associated Commission orders.

(This page filed under Transmittal No. 2540 )

Issued: February 29, 1996 Effective: March 1, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-55 Cancels 1st Revised Page 2-55

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations

2.5.1 Advance Payments

Arkansas, Kansas, Missouri, Oklahoma and Texas (T)

A customer may be required to pay in advance a portion of the estimated installation or construction costs where the provision of facilities involve an unusual investment. The amount of the advance payment will be credited to the customer's account as applying to the indebtedness of the customer for the services and facilities provided.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-55.1 Cancels 4th Revised Page 2-55.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.2 Deposits and Other Payments (T)

To protect itself from the risk of non-payment, the Telephone Company may require a customer to provide a cash deposit in those instances specified in Section 2.5.2(A). (T)

(A) There is a proven history of late payments or the customer has not demonstrated established credit. A proven history of late payments is defined as 2 or more occasions within the preceding 12 months in which payment(s) for the undisputed charges of that month’s total billings (sum of all bills sent in that month for all accounts for all services provided under this tariff by the Telephone Company) was

(1) not received within 3 business days following the payment due date and (2) the payment(s) not received within 3 business days represented at least 10% of the month’s total billings for all accounts for all services provided under this tariff by the Telephone Company.

Example for January 2005 billings:

Assume: $100 payment for a January billing received on the due date $100 payment for a January billing received 1 business day late $100 payment for a January billing received 4 business days late

Total January billings for all accounts for all services provided under this tariff by the Telephone Company sum to $300. There are no disputes.

One payment is recognized as being late since it is beyond 3 business days late and it represents 33% of the monthly billings. This would represent the first occasion of a monthly late payment.

Disputed billed amounts for the sake of this section are disputed via the process outlined in Section 2.5.3(B)(1). (T)

In the event that a customer has a history of late payments or has not demonstrated established credit, the Telephone Company may require the customer to pay a two- month deposit based on the total charges billed and rendered by the Telephone Company for the most recent two months of service. In the event the customer has not received two months of service from the Telephone Company, the two-month deposit will be based on charges estimated by the Telephone Company for the initial two- month period. (This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-55.2 Cancels 4th Revised Page 2-55.2

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.2 Deposits and Other Payments (Cont’d) (T)

(A) (Cont'd)

The Telephone Company will provide the customer written notice by Overnight Delivery, as described in Section 2.1.6 (T) (A), if a deposit is required under this section. The (T) customer must pay the two-month deposit within 15 business days following the date the written notice is sent to the customer. Such notice period will begin the day after the notice is sent. If the customer fails to pay the deposit by the due date, as described above, the Telephone Company may send the customer a written notice by Overnight Delivery stating that if the deposit is not received within 15 calendar days of the original deposit due date, the Telephone Company may take any or all of the actions specified in Section 2.1.6(A).

Simple interest at a rate set forth in Section 2.5.2(A)(1) (T) will accrue on cash deposits. Simple interest will be applied for the number of days from the date the customer deposit is received by the Telephone Company to and including the date such deposit is credited to the customer's account or the date the deposit is refunded by the Telephone Company.

The cash deposit will be returned, with any accrued, uncredited interest within 15 business days of when a customer with a history of late payments or no established credit history demonstrates a one-year prompt payment record (undisputed billed balances are paid within the bill payment requirements outlined in Section 2.5.3). (T)

In the event the provision of all service to the customer is terminated and the Telephone Company maintains a cash deposit from the customer, the deposit and any accrued, uncredited interest will be applied to any outstanding sums owed to the Telephone Company, and any remaining balance will be returned to the customer.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 2-55.3 Cancels 5th Revised Page 2-55.3

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.2 Deposits and Other Payments (Cont’d) (T)

(A) (Cont'd)

(1)

State Interest Rate

In the case of a cash deposit, for Arkansas, the period the deposit is held by Kansas, the Telephone Company, the Missouri, Customer will receive simple Oklahoma, interest at the rate of 1.5% per Texas month (.0004931 per day) or 18% annually.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-55.4 Cancels 1st Revised Page 2-55.4

ACCESS SERVICE

2. General Regulations (Cont'd) (N)

2.5 Billing Regulations (Cont'd) (N)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-55.5 Cancels 1st Revised Page 2-55.5

ACCESS SERVICE

2. General Regulations (Cont'd) (N)

2.5 Billing Regulations (Cont'd) (N)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-56 Cancels 4th Revised Page 2-56

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

(D)

Certain material previously appearing on this page now appears on 4th Revised Page 2-55.3.

(This page filed under Transmittal No. 3045 )

Issued: March 4, 2005 Effective: March 19, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-57 Cancels 4th Revised Page 2-57

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

(D)

(This page filed under Transmittal No. 3045 )

Issued: March 4, 2005 Effective: March 19, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-58 Cancels 4th Revised Page 2-58

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd) (D)

Certain material previously appearing on this page now appears on 4th Revised Page 2-55.3.

(This page filed under Transmittal No. 3045 )

Issued: March 4, 2005 Effective: March 19, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-59 Cancels 4th Revised Page 2-59

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

(D)

(This page filed under Transmittal No. 3045 )

Issued: March 4, 2005 Effective: March 19, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-60 Cancels 4th Revised Page 2-60

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

(D)

Certain material previously appearing on this page now appears on 4th Revised Page 2-55.3.

(D)

(This page filed under Transmittal No. 3045 )

Issued: March 4, 2005 Effective: March 19, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-61 Cancels 4th Revised Page 2-61

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd) (D)

(D)

(This page filed under Transmittal No. 3045 )

Issued: March 4, 2005 Effective: March 19, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 2-62 Cancels 6th Revised Page 2-62

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.3 Payment of Rates and Charges

For services provided under this tariff, the Telephone Company will bill in the following manner:

- Charges or credits due to the customer for services established or discontinued during the preceding billing period will be billed on a current basis,

- Recurring rates and charges for services to be provided during the next billing period will be billed in advance, and

- Usage charges and charges associated with services provided to the Federal Government will be billed in arrears. (T) (T) All bills are due when rendered and shall be paid no later than (T) 30 days of the bill date or by the next bill date, as set forth in (A) following, whichever is sooner.

If the payment date would cause payment to be due on a Saturday, Sunday or Legal Holiday, payment for such bills will be due from the customer as follows:

- If the payment date falls on a Sunday or on a Legal Holiday which is observed on a Monday, the payment date shall be the first non-Holiday day following such Sunday or Legal Holiday.

- If the payment date falls on a Saturday or on a Legal Holiday which is observed on Tuesday, Wednesday, Thursday or Friday, the payment date shall be the last non-Holiday day preceding such Saturday or Legal Holiday.

Adjustments for the quantities of services established or discontinued in any billing period beyond the minimum period set forth for services in other sections of this tariff will be prorated to the number of days or fraction thereof based on a 30 day month.

(This page filed under Transmittal No. 3045 )

Issued: March 4, 2005 Effective: March 19, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 2-63 Cancels 8th Revised Page 2-63

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.3 Payment of Rates and Charges (Cont'd)

When a rate as set forth in this tariff is shown to more than two decimal places, the charges will be determined using the rate shown. The resulting amount will then be rounded to the nearest penny (i.e., rounded to two decimal places).

(A) Past Due Charges

Bills are considered past due 30 days after the bill date or by the next bill date (i.e., same date as the bill date in the following month), whichever occurs first, and are payable in immediately available funds.

With the exception of Easy Access Dialing in Missouri, as set forth in Section 13.3.1, if the entire amount billed, exclusive of any amount disputed by the customer, is received by the Telephone Company after the payment date or if any portion of the payment is received by the Telephone Company in funds which are not immediately available to the Telephone Company, then a late payment charge will apply to the unpaid balance.

State Late payment charge

The late payment charge shall be simple (C) interest at the rate of 1.5% per month (.0004931 per day) or 18% annually. Until such time as the Telephone Company Arkansas, receives authorization to assess late Kansas, payment charges, late payment charges Missouri, will not apply to services purchased by Oklahoma, the government of the State of Missouri Texas nor the government of the State of Texas (including service to an agency in any branch of government within the State of Texas). (C)

(This page filed under Transmittal No. 3338 )

Issued: April 5, 2012 Effective: April 20, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 2-64 Cancels 7th Revised Page 2-64

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.3 Payment of Rates and Charges (Cont'd)

(A) Past Due Charges (Cont'd)

(D)

(D)

(This page filed under Transmittal No. 3338 )

Issued: April 5, 2012 Effective: April 20, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 2-65 Cancels 6th Revised Page 2-65

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd) (D) 2.5.3 Payment of Rates and Charges (Cont'd)

(D) (N)

(B) Billing Disputes

In the event that a billing dispute occurs concerning any charges billed to the customer by the Telephone Company the following regulations will apply.

(1) A good faith dispute requires the customer to provide a written claim to the Telephone Company. Instructions for submitting a dispute can be obtained by calling the billing inquiry number shown on the customer’s bill. Such claim must identify in detail the basis for the dispute, the account number under which the bill has been rendered, the date of the bill and the specific items on the bill being disputed, to permit the Telephone Company to investigate the merits of the dispute.

(2) The date of the dispute shall be the date on which the customer furnishes the Telephone Company the account information required by Section 2.5.3(B)(1) above.

(3) The date of resolution shall be the date on which the Telephone Company completes its investigation of the dispute, notifies the customer in writing of the disposition and, if the billing dispute is resolved in favor of the customer, applies the credit for the amount of the dispute resolved in the customer’s favor to the customer’s bill.

(4) If the dispute is decided to be in favor of the Telephone company, then the resolution date will be the date upon which (N) a written decision on this dispute is sent to the customer.

Material previously appearing on this page now appears on 7th Revised Page 2-64.

(This page filed under Transmittal No. 3045 )

Issued: March 4, 2005 Effective: March 19, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-65.1 Cancels 4th Revised Page 2-65.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.3 Payment of Rates and Charges (Cont'd)

(C) Billing Disputes Resolved in Favor of the Telephone Company

Arkansas, Kansas, Missouri, Oklahoma and Texas (T)

In the event that a billing dispute is resolved in favor of the Telephone Company, any payments withheld pending settlement of the dispute shall be subject to a late payment charge determined in accordance with (A) preceding and applied to such disputed charges. Such annual rate will be compounded daily and applied for each month or portion thereof that such charges were unpaid.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-66 Cancels 2nd Revised Page 2-66

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.3 Payment of Rates and Charges (Cont'd)

Material and revised material previously appearing on this page now appears on 2nd Revised Page 2-65.

(This page filed under Transmittal No. 2490 )

Issued: August 21, 1995 Effective: October 5, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-67 Cancels 1st Revised Page 2-67

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.3 Payment of Rates and Charges (Cont'd)

Material and revised material previously appearing on this page now appears on 1st Revised Page 2-65.1.

(This page filed under Transmittal No. 2490 )

Issued: August 21, 1995 Effective: October 5, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-68 Cancels 3rd Revised Page 2-68

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.3 Payment of Rates and Charges (Cont'd)

(D) Billing Disputes Resolved in Favor of the Customer (T)

Arkansas, Kansas, Missouri, Oklahoma and Texas

In the event that a billing dispute is resolved in favor of the customer, no late payment charge will apply to the disputed amount and the customer will receive a credit equal to the overcharged amount.

(1) Interest Credit (C) The customer will receive an interest credit if all of (T) the conditions in section 2.5.3(B) are met. In addition (T) the customer must have paid the total amount billed in (M) dispute and the billing dispute must be resolved in (D) favor of the customer.

(D)

Certain revised material appearing on this page previously appeared on 3rd Revised Page 2-69.

(This page filed under Transmittal No. 3045 )

Issued: March 4, 2005 Effective: March 19, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-69 Cancels 4th Revised Page 2-69

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.3 Payment of Rates and Charges (Cont'd)

(D) Billing Disputes Resolved in Favor of the Customer (Cont'd)

(2) Interest Credit Period

When a claim is filed within 130 days from the bill date, the period covered by the interest credit shall begin on the date that the Telephone Company receives payment in immediately available funds. When a claim is filed more than 130 days after the bill date, the period covered by the interest credit shall begin on the date of the claim or the date of overpayment, whichever is later. The period covered by the interest credit shall end on the date that the customer's account is credited.

(3) Calculation of Interest Credit

Arkansas, Kansas, Missouri, Oklahoma, and Texas (C)

Interest credit shall be calculated based upon the portion of the disputed amount resolved in the customer's favor multiplied by simple interest at the (C) rate of 1.5% per month (.0004931 per day) or 18% (C) annually. (C)

(This page filed under Transmittal No. 3338 )

Issued: April 5, 2012 Effective: April 20, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 2-70 Cancels 5th Revised Page 2-70

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.3 Payment of Rates and Charges (Cont'd)

(D)

(D)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-71 Cancels 2nd Revised Page 2-71

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.3 Payment of Rates and Charges (Cont'd)

(D)

Certain material and revised material previously appearing on this page now appears on 1st Revised Page 2-69.

(This page filed under Transmittal No. 2490 )

Issued: August 21, 1995 Effective: October 5, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-71.1 Cancels 1st Revised Page 2-71.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.3 Payment of Rates and Charges (Cont'd)

(D)

(This page filed under Transmittal No. 2490 )

Issued: August 21, 1995 Effective: October 5, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-72 Cancels 9th Revised Page 2-72

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.4 Minimum Periods

(A) The minimum period for which service is provided and for which rates and charges are applicable is set forth in each section of this tariff, where appropriate.

(B) When a service is discontinued prior to the expiration of the minimum period, charges are applicable whether the service is used or not, as follows:

(1) When a service with a one month minimum period is discontinued prior to the expiration of the minimum period, a one month charge will apply at the rate level in effect at the time service is discontinued.

(2) When a service with a minimum period greater than one month is discontinued prior to the expiration of the minimum period, with the exception of Specialized Services or Arrangements, MegaLink Custom Services, STN or SBNS Services, the applicable charge will be (D) the lesser of:

a. The Telephone Company's total nonrecoverable costs, less the net salvage value, for the discontinued service, or

b. The total monthly charges, at the rate level in effect at the time service is discontinued, for the remainder of the minimum period.

(C) For Specialized Services and associated multiplexing in Section 12, MegaLink Custom Services and associated optional features and functions in Section 20, STN Service and associated optional features and functions in Section 22, and SBNS Services in Section 31, the applicable charges(D) are set forth in each respective section.

(D) For Specialized Services or Arrangements provided on an individual case basis in Section 12, the minimum period is one month unless a different minimum period is established with the individual case filing.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-72.1 Cancels 4th Revised Page 2-72.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.5 Missed Installation on Confirmed Due Date

(A) General

The Telephone Company assures that when a customer orders certain Access Services, as specified in (B) following, service will be installed and available for customer use no (N) later than the Confirmed Due Date provided by the Telephone (N) Company.

Failure to meet a Confirmed Due Date for installation of (C) certain services will result in a credit shown in the (C) Missed Installation Credit Schedule found in 2.5.5 (B) (C) following when the responsibility for the failure is solely the Telephone Company's. This credit will apply to services up to the Network Interface.

(B) Services Subject To The Credit (C) The services listed in the Missed Installation Credit (C) Schedule found below will be credited for a missed (C) installation on a Confirmed Due Date as shown: (C) Missed Installation Credit Schedule

Services Credit Amount Voice Grade Services $200.00 MegaLink Data Services $250.00 High Capacity DS1 Special Access $350.00 Services MegaLink Custom DS3 Services $600.00 ReliaNet Services (DS1) $250.00 ReliaNet Services (DS3) $500.00 (C)

(C) When a Credit Allowance Does Not Apply

No credits for a missed installation on a Confirmed Due (C) Date will be made when:

1. The customer's premises is inaccessible.

2. The customer changes interface requirements.

3. The customer is not ready to accept service.

4. Building facilities are not ready (includes space, cable support structures, building risers and entrance facilities to be provided by builder or owner or owner's subcontracted vendors).

(This page filed under Transmittal No. 2992 )

Issued: March 17, 2004 Effective: April 1, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-72.2 Cancels 1st Revised Page 2-72.2

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.5 Missed Installation on Confirmed Due Date (Cont'd)

(C) When a Credit Allowance Does Not Apply (Cont'd)

5. Customer Desired Due Date is less than the Telephone Company's published installation objective.

6. When the Telephone Company is not the Access Service Coordination Exchange Carrier (ASC-EC), as set forth in 2.6 (Jointly Provided Access Services) preceding, and the Confirmed Due Date is not met by the exchange company acting as the ASC-EC for its portion of the service. (See diagram below.)

SWBT ANOTHER ASC-EC LEC ASC-EC

SWBT Credit Credit MISSES applies applies DATE

ANOTHER Credit Credit LEC MISSES applies does not DATE apply

7. The delay is caused by work stoppages, civil disturbances, criminal actions; or by fire, flooding or (N) other occurrence attributed to an Act of God or any (N) other circumstance beyond the Telephone Company’s (N) reasonable control.

8. When the customer provides the incorrect address. (N) 9. Special Access nonrecurring installation charges (as specified in 7.3.4, 7.3.9, 7.3.10, 20.5 and 31.3.3), associated with Voice Grade Service, MegaLink Data Service, High Capacity DS1 Special Access Service, MegaLink Custom DS3 Service, and ReliaNet Services that (N) are waived or zero rated

(This page filed under Transmittal No. 2992 )

Issued: March 17, 2004 Effective: April 1, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 2-73 Cancels 6th Revised Page 2-73

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions

(A) General

Service (with the exception of STN and ReliaNet) is considered to be interrupted when it becomes unusable to the customer because of a failure of a facility component used to furnish service under this tariff or the protective controls applied by the Telephone Company, specified in 6.7.10 (Network Management), result in the complete loss of service by the customer. An interruption period starts when an inoperative service is reported to the Telephone Company and ends when the service is operative.

The credit allowance for an interruption or for a series of interruptions shall not exceed:

1. The applicable monthly rate,

2. The assumed minutes of use charge, or

3. The billed amount for that particular rate element in those cases where the tariff rate exceeds the actual billed amount (e.g., Shared Used Special Access services). (D) (D)

For STN and ReliaNet, the service is considered to be interrupted when it does not meet the following maintenance specifications as set forth in Technical Publications 76635 and 76839, respectively:

- Errored Seconds - Severely Errored Seconds - Consecutive Severely Errored Seconds - Availability

For STN and ReliaNet, an interruption period starts when an interruption of service is reported to the Telephone Company and the service is released to the Telephone Company for repair and ends when the service is operative.

(This page filed under Transmittal No. 2992 )

Issued: March 17, 2004 Effective: April 1, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-73.1 Cancels Original Page 2-73.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies

In addition, Credit Allowance for Service Interruptions also apply when service is interrupted due to labor difficulties, governmental orders, civil commotions, criminal actions taken against the Telephone Company, acts of God and other circumstances beyond the Telephone Company's reasonable control. No credit shall be allowed for an interruption period of less than 30 minutes. The customer shall be credited for an interruption of 30 minutes or more at the rate of 1/1440 of the monthly charges for the facility or service for each period of 30 minutes or fraction thereof that the interruption continues after the initial 30 minute interruption. However, the Service Assurance Warranty Schedule (SAWS) as specified in 2.5.7 will not apply.

(This page filed under Transmittal No. 2513 )

Issued: November 1, 1995 Effective: December 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-74 Cancels 9th Revised Page 2-74

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

In case of an interruption to any service that is not due to the negligence of the customer, allowance for the period of interruption shall be as follows:

(1) Common Channel Signaling/Signaling System 7 (CCS/SS7) Interconnection Service (D)

No credit shall be allowed for an interruption period of less than 30 minutes. The customer shall be credited for an interruption of 30 minutes or more at the rate of 1/1440 of the monthly charges for the facility or service for each period of 30 minutes or fraction thereof that the interruption continues after the initial 30 minute interruption.

For CCS/SS7 Interconnection Service, the monthly charge shall be the total of all monthly rate element charges associated with the service (i.e., STP Access Mileage, STP Access Connection and STP Port Termination).

(D)

(D)

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 18th Revised Page 2-74.1 Cancels 17th Revised Page 2-74.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(2) Special Access Services

A credit allowance for service interruptions applies to the following Special Access Services: Metallic Service, Telegraph Grade Service, Voice Grade Service, Program Audio Service, Video Service, MegaLink Data Service, High Capacity Service, DovLink Service, Message Station Equipment Recovery Charge, Administration and Maintenance of Priority Restoration, Network Reconfiguration Service, Transport Resource Management (TRM) Service, Self- Healing Transport Network (STN) Service, MegaLink Custom Service and ReliaNet Service. A credit allowance will also apply to Diversity Service.

No credit shall be allowed for an interruption period of less than 30 minutes. For each period of 30 minutes, or fraction thereof, that the interruption continues after the initial 30 minute outage, the customer will be credited at the rate of 1/1440 of the monthly charges until the outage reaches the Service Assurance Warranty (SAWS) threshold. When the total service interruptions on the same service exceeds the SAWS threshold within a 12 hour time period, the customer shall receive an additional credit per the SAWS schedule of credits as specified in Section 2.5.7. (C) The total credit allowance available to the customer regardless of the number or type of service interruptions within a 30 day period will not exceed 100% of the combined monthly rates per affected (C) service.

For two-point services, the monthly charge shall be the total of all the monthly rate element charges associated with the service (i.e., two channel terminations, channel mileage and optional features and functions).

(This page filed under Transmittal No. 2992 )

Issued: March 17, 2004 Effective: April 1, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-74.2 Cancels Original Page 2-74.2

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(2) Special Access Services (Cont'd)

(D)

Issued under the authority of Special Permission No. 95-745 of the F.C.C.

(This page filed under Transmittal No. 2472 )

Issued: June 20, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-75 Cancels 2nd Revised Page 2-75

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd) (T)

(B) When a Credit Allowance Applies (Cont'd)

(2) Special Access Services (Cont'd)

For multipoint services, the monthly charge shall be only the total of all the monthly rate element charges associated with that portion of the service that is inoperative (i.e., a channel termination per customer premises, channel mileage and optional features and functions).

For multiplexed services, the monthly charge shall be the total of all the monthly rate element charges associated with that portion of the service that is inoperative.

When the facility which is multiplexed or the multiplexer itself is inoperative, the monthly charge shall be the total of all the monthly rate element charges associated with the service (i.e., the channel termination, channel mileage and optional features and functions, including the multiplexer on the facility to the Hub and the channel terminations, channel mileages and optional features and functions on the individual services from the Hub).

When the service which rides a channel of the (M) multiplexed facility is inoperative, the monthly charge shall be the total of all the monthly rate element charges associated with that portion of the service from the Hub to a customer premises (i.e., channel termination, channel mileage and optional features and functions).

Certain material appearing on this page formerly appeared on 8th Revised Page 2-76.

Certain material previously appearing on this page now appears on 8th Revised Page 2-74.1.

(This page filed under Transmittal No. 2400 )

Issued: November 10, 1994 Effective: December 25, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 2-76 Cancels 10th Revised Page 2-76

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(3) Switched Access Service, Directory Assistance Service, and Telecommunications Relay Interconnection Service (D) (TRIS)

A credit allowance for service interruptions will be applied to Switched Access Service and Directory (T) Assistance Service depending upon whether or not the (D) interruption is associated with a service that is usage rated or monthly recurring rated as set forth in (a) and (b), following: (T)

(a) Credit Allowance for Usage Rated Services

If the service experiencing an interruption is billed assumed minutes of use, credit shall be allowed for an interruption of greater than 24 hours. Such credit will be at the rate of 1/30th of the assumed minutes of use charge for each period of 24 hours or fraction thereof that the interruption continues.

If the service experiencing an interruption is billed on a measured, usage sensitive basis, a credit allowance does not apply.

If the service experiencing an interruption includes optional features or BSEs being billed monthly recurring rates, credit for an interruption of greater than 24 hours for the associated features or BSEs will be at the rate of 1/30th of the applicable monthly rate for each period of 24 hours or fraction thereof that the interruption occurs.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-76.1 Cancels 3rd Revised Page 2-76.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(3) Switched Access Service, Directory Assistance Service, and Telecommunications Relay Interconnection Service (D) (TRIS) (Cont'd)

(b) Credit Allowance for Monthly Recurring Rated Services

(1) For the following Switched Access, Directory Assistance and Telecommunications Relay Interconnection Services with monthly recurring rates as defined in 6.8.3 (Monthly Recurring and Usage Rates), 9.4.3 (Monthly Recurring and Usage Rates) and 26.5.3 (Monthly Rates):

- Switched Transport - Directory Transport - Switched Access DNAL BSA - Telecommunications Relay Interconnection Service (TRIS)

the charges for which a credit will apply due to service interruptions will be the total of all monthly rate elements associated with the transport facility or BSA (i.e., per channel, per point of DNAL termination, DNAL mileage, per DS1 or DS3, fixed per month and per mile per month, per point of TRIS termination and TRIS Mileage) including any monthly rated features and BSEs associated with either the transport facility or the DNAL BSA.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 2-76.2 Cancels 5th Revised Page 2-76.2

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(3) Switched Access Service, Directory Assistance Service, and Telecommunications Relay Interconnection Service (D) (TRIS) (Cont'd)

(b) Credit Allowance for Monthly Recurring Rated Services (Cont'd)

(1) (Cont'd)

No credit allowance shall be allowed for an interruption period of less than 30 minutes. The customer shall be credited for an interruption of 30 minutes or more up to, and including, 2 hours at the rate of 1/1440 of the monthly charges for the facility for each period of 30 minutes or fraction thereof that the interruption continues after the initial 30 minute outage. When the total service interruptions on the same service exceeds 2 hours within a 12 hour time period, the customer shall receive an additional credit per the Service Assurance Warranty Schedule (SAWS) specified in 2.5.7.

In any month, as a result of the interruption, the total credit per rate element of the interrupted service may not exceed 100 percent of the monthly charge for that particular rate element.

(a) When Switched Transport is provided in a multiplexing arrangement and the multiplexer becomes inoperative, the monthly charge being credited will be the total of all monthly charges associated with the facilities being interconnected by the multiplexer. Such credit will include all monthly rated features or BSEs associated with the interconnected facilities.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-76.3 Cancels 3rd Revised Page 2-76.3

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(3) Switched Access Service, Directory Assistance Service, and Telecommunications Relay Interconnection Service (D) (TRIS) (Cont'd)

(b) Credit Allowance for Monthly Recurring Rated Services (Cont'd)

(1) (Cont'd)

(b) When a Switched Transport facility being provided in a multiplexing arrangement becomes inoperative, the monthly charge being credited will be the total of all monthly charges associated with the inoperative transport facility as well as that portion of all interconnected transport facilities which also becomes inoperative. Such credit will include all monthly rated features or BSEs associated with the inoperative facility or that portion of the interconnected facilities which also becomes inoperative.

(c) When the service riding the channel of the multiplexed facility is inoperative, the monthly charge to be credited for the multiplexed facility shall be the total of all monthly rate element charges associated with the inoperative portion of the facility. The credit will include all monthly rated features or BSEs associated with the inoperative transport facility.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-76.4 Cancels 3rd Revised Page 2-76.4

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(3) Switched Access Service, Directory Assistance Service, and Telecommunications Relay Interconnection Service (D) (TRIS) (Cont'd)

(b) Credit Allowance for Monthly Recurring Rated Services (Cont'd)

(2) When a service outage occurs on a Direct- Trunked Transport facility and traffic is alternately routed to a Tandem-Switched Transport facility to avoid the service outage, the Telephone Company may allow additional out-of-service credits as follows:

For Switched Access Service and DA Access Service, the Telephone Company will first determine the length of time for which the customer is entitled to an adjustment on the Direct-Trunked Transport facility as set forth in (1), preceding. Because actual (T) alternate tandem traffic cannot be captured during the service outage period, surrogate tandem usage factors have been developed based on an assumed 9,000 minutes of use per channel per month and a DA holding time of .633962 minutes.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-76.5 Cancels 3rd Revised Page 2-76.5

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(3) Switched Access Service, Directory Assistance Service, and Telecommunications Relay Interconnection Service (D) (TRIS) (Cont'd)

(b) Credit Allowance for Monthly Recurring Rated Services (Cont'd)

(2) (Cont'd)

Based on a 30 day month and a 24 hour day, each half hour increment of service outage will result in an assumed alternate tandem usage level of 6.25 minutes of use per channel for Switched Access and 9.86 calls per channel for DA Access Service (i.e., 150 minutes or 237 calls per DS1 and 4,200 or 6,626 calls per DS3). This surrogate alternate traffic usage will be rated based on the airline distance between the customer's serving wire center and the end office where the Direct-Trunked Transport facility that experienced the service outage terminated. The appropriate Tandem Switched Transport subelements (i.e., Tandem Switched Transmission and Tandem Switching or Tandem- Switched Directory Transmission and Directory Tandem Switching) will be used to determine the total Alternate Traffic Credit.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-76.6 Cancels 2nd Revised Page 2-76.6

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(3) Switched Access Service, Directory Assistance Service, and Telecommunications Relay Interconnection Service (D) (TRIS) (Cont'd)

(b) Credit Allowance for Monthly Recurring Rated Services (Cont'd)

(2) (Cont'd)

If the Direct-Trunked Transport facility that experienced the service outage provided transport only for Switched Access Service, an Alternate Traffic Credit will only be calculated for Switched Access. If the facility provided transport only for DA Access Service, an Alternate Traffic Credit will only be calculated for DA Access Service. If the facility provided transport for both Switched Access Service and DA Access Service, the total Alternate Traffic Credit will be the sum for the credits calculated for both Switched Access and DA Access Service.

If the amount of the Alternate Traffic Credit is greater than the amount of credit that would have been allowed as set forth in (1), (T) preceding, the Telephone Company will credit the customer the Alternate Traffic Credit instead of the lesser credit for the inoperative facility. If the Alternate Traffic Credit is less than or equal to the amount that would otherwise be credited to the customer (as set forth in (1) preceding), the Alternate Traffic Credit will not be allowed.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-76.7 Cancels 3rd Revised Page 2-76.7

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(D) (D)

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-76.7.1 Cancels Original Page 2-76.7.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-76.7.2 Cancels Original Page 2-76.7.2

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(D)

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-76.7.3 Cancels Original Page 2-76.7.3

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd) (D)

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-76.7.4 Cancels Original Page 2-76.7.4

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd) (D)

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-76.7.5 Cancels Original Page 2-76.7.5

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd) (D)

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-76.7.6 Cancels Original Page 2-76.7.6

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd)

(4) Expanded Interconnection (T)

(a) Virtual Collocation

An interruption period begins when an inoperative condition of a virtual collocation arrangement is reported to the Telephone Company's designated contact point and ends when the virtual collocation arrangement is operative. No allowance for an interruption period will be provided for virtual collocation where the interruption is due to the actions or negligence of the interconnector or to an inoperative condition on a Telephone Company-provided Switched Access or Special Access Service.

When a credit allowance does apply, such credit will be determined based on the rates applicable to the specific item(s) causing the interruption; however, the credit allowance for an interruption or for a series of interruptions shall not exceed the applicable monthly rate for the item(s) involved.

For calculating credit allowances, every month is considered to have 30 days. No credit shall be allowed for an interrupted period of less than 30 minutes. The interconnector shall be credited for an interruption of 30 minutes or more at the rate of 1/1440 of the monthly rate.

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 2-76.8 Cancels 5th Revised Page 2-76.8

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(B) When a Credit Allowance Applies (Cont'd) (T) (4) Expanded Interconnection (Cont'd)

(a) Virtual Collocation (Cont'd)

When a third party vendor maintains and repairs an interconnector's designated basic termination equipment, credit allowance will not apply to any interruption of the items maintained and repaired by the third party vendor.

(b)

(T) (5) Diversity Service

A credit allowance for service interruptions applies to the Diversity Service as follows.

No credit shall be allowed for an interruption period of less than 30 minutes. The customer shall be credited for an interruption of 30 minutes or more up to, and including, 2 hours at the rate of 1/1440 of the monthly Diversity charges on a facility or service for each period of 30 minutes or fraction thereof that the interruption continues after the initial 30 minute outage. When the total service interruptions on the same Diversity service exceed 2 hours within a 12 hour time period, the customer shall be credited per the Service Assurance Warranty Schedule (SAWS) specified in 2.5.7.

In any month, as a result of the interruption, the total credit per rate element of the interrupted service may not exceed 100 percent of the monthly charge for that particular rate element.

The credits applying herein, are for the Diversity Service portion of the customer's total monthly charges only. The credits available to the customer for the basic service, on which the Diversity is used, are as stated in other sub-sections of this credit allowance section.

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-76.9 Cancels 1st Revised Page 2-76.9

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd) (T)

(C) When a Credit Allowance Does Not Apply (M)

Credit allowances will not be made for the following:

(1) Interruptions caused by the negligence of the customer.

(2) Interruptions of a service due to the failure of equipment or systems provided by the customer or others.

(3) Interruptions of a service during any period in which the Telephone Company is not afforded access to the premises where the service is terminated.

(4) When the Telephone Company and the customer negotiate the release of the service for (1) maintenance purposes, (2) to make rearrangements or (3) to implement an order for a change in the service, a credit allowance does not apply during the negotiated time of release. Thereafter, a credit allowance as set forth in (A) and (B) preceding does apply.

(5) Interruptions of a service which continue because of the failure of the customer to authorize replacement of any element of special construction, as set forth in Southwestern Bell Telephone Company Tariff F.C.C. No. 69. The period for which no credit allowance is made begins on the seventh day after the customer receives the Telephone Company's written notification of the need for such replacement and ends on the day after receipt of the written authorization for such replacement.

(6) Periods when the customer elects not to release the service for testing and/or repair and continues to use it on an impaired basis.

Material and revised material appearing on this page formerly appeared on 2nd Revised Page 2-80.

Material and revised material previously appearing on this page now appears on 1st Revised Page 2-76.18.

(This page filed under Transmittal No. 2400 )

Issued: November 10, 1994 Effective: December 25, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-76.10 Cancels 2nd Revised Page 2-76.10

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.6 Credit Allowance for Service Interruptions (Cont'd)

(C) When a Credit Allowance Does Not Apply (Cont'd)

(7) Interruption of service caused by a customer's failure to provide notification to the Telephone Company of media stimulated mass calling events as specified in 6.7.12 (Media Stimulated Mass Calling Events). (T)

(8) An interruption or a group of interruptions, resulting from a common cause, for amounts less than one dollar.

(9) Credit Allowance for Service Interruptions also apply when service is interrupted due to labor difficulties, governmental orders, civil commotions, criminal actions taken against the Telephone Company, acts of God and other circumstances beyond the Telephone Company's reasonable control. No credit shall be allowed for an interruption period of less than 30 minutes. The customer shall be credited for an interruption of 30 minutes or more at the rate of 1/1440 of the monthly charges for the facility or service for each period of 30 minutes or fraction thereof that the interruption continues after the initial 30 minute interruption. However, the Service Assurance Warranty Schedule (SAWS) as specified in 2.5.7 will not apply.

(D) Use of An Alternative Service Provided by the Telephone Company

Should the customer elect to use an alternative service provided by the Telephone Company during the period that a service is interrupted, the customer must pay the tariffed rates and charges for the alternative service used.

(E) Temporary Surrender of a Service

In certain instances, the customer may be requested to surrender a service for purposes other than maintenance, testing or activity relating to a service order. If the customer consents, a credit allowance will be granted. The credit allowance will be determined in the same manner as a credit for service interruptions as set forth in (A) preceding.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 2-76.11 Cancels 12th Revised Page 2-76.11

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS)

The customer shall be credited per the Service Assurance Warranty Schedule (SAWS) specified below when the total service interruptions on the same service exceeds the SAWS threshold for that service as specified following, within a 12 hour time period.1

The SAWS credit allowance is in addition to the credit allowance in Section 2.5.6. The SAWS credit allowance is applied to the customer's bill in addition to the existing monthly service rates, and in addition to any existing credit allowances. The total credit allowance available to the customer, regardless of the number of service interruptions in any one monthly billing period, will not exceed 100 percent of the monthly charge for that particular rate element.1

(A) Special Access Services

All Special Access Services with exceptions as listed below will be credited according to the SAWS schedule below, in addition to the credit allowances in Section 2.5.6.2

SAWS Threshold2

Over 3 hours

Service Category SAWS Credit Per Interruption

(1)2 All Special Access 1/2 of the monthly rate Services with the following exceptions:

DS1, DS3, DS1/DS3 eqpd. with SecureNet options, NRS and TRM Services (assoc. with DS1 or DS3 Service), Message Station Equipment Recovery Charge (assoc. with DS1/DS3 Svc.), Admin. and Mtce. of Priority Restoration (assoc. with DS1/DS3 Service), (3), STN (D) Service and ReliaNet Service (3).

(D)

1 Effective April 1, 2004, for Special Access Metallic, Telegraph, Voice Grade, Program Audio, Video, MegaLink Data, High Capacity (DS1), and MegaLink Custom Service (DS3) this regulation is limited to existing customers at existing locations. Additionally, this regulation is limited to services that may be rearranged or moved pursuant to existing DS1 TPP terms and conditions found in Section 7.2.22.

2 Effective April 1, 2004 this regulation is limited to existing customers at existing locations. Additionally, this regulation is limited to services that may be rearranged or moved pursuant to existing DS1 TPP terms and conditions found in Section 7.2.22.

3 Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3352 )

Issued: September 11, 2012 Effective: September 26, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 2-76.12 Cancels 11th Revised Page 2-76.12

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

High Capacity Service (DS1)1, Megalink Custom Service (DS3)1, ReliaNet On-Net - Opt. 2 AC - DS1 and Off-Net AC, DS1 and DS3 access ports (2) will be credited according to (D) the SAWS schedule below, in addition to the credit allowances in Section 2.5.6.

SAWS Threshold

Over 2 hours

Service Category SAWS Credit Per Interruption

(2) High Capacity Svc. 1/2 of the monthly rate (DS1)1,MegaLink Custom Svc. (DS3)1, BCS* and OCN PTP.

(3) ReliaNet - On-Net - 1/2 of the monthly rate Opt. 2 AC - DS1 and Off-Net AC, DS1 and DS3 access ports

(D) (D)

1 Effective April 1, 2004 this regulation is limited to existing customers at existing locations. Additionally, this regulation is limited to services that may be rearranged or moved pursuant to existing DS1 TPP terms and conditions found in Section 7.2.22. 2 Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3352 )

Issued: September 11, 2012 Effective: September 26, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-76.13 Cancels 2nd Revised Page 2-76.13

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS)

(A) Special Access Services (N) (4) Special Access Metallic, Telegraph, Voice Grade, Program Audio, Video, MegaLink Data, High Capacity (DS1), and MegaLink Custom Service (DS3)

For service interruptions 4 hours or greater, the customer shall be credited as follows:

(i) For the initial 4 hour outage in a 30 day period, in lieu of the credit described in 2.5.6, the customer will be credited as shown in the SAWS schedule below.

(ii) Additional service interruptions that are 4 hours or greater that occur in the same 30 day period will be calculated at the rate of 1/1440 per 30 minute interval described in 2.5.6.

The total credit allowance available to the customer regardless of the number or type of service interruptions within a 30 day period will not exceed 100% of the combined monthly rates per affected service.

Special Access Services as listed below will be credited according to the SAWS schedule below, in addition to the credit allowances in Section 2.5.6.

SAWS Threshold Service Category SAWS Credit Per Interruption

4 Hours and greater Metallic $5.00 Telegraph $5.00 Voice Grade $10.00 Program Audio $10.00 Video $10.00 MegaLink Data $15.00 High Capacity $120.00 Service(DS1) MegaLink Custom $380.00 Service(DS3) (N)

(This page filed under Transmittal No. 2992 )

Issued: March 17, 2004 Effective: April 1, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-76.14 Cancels 1st Revised Page 2-76.14

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(C)

(This page filed under Transmittal No. 2457 )

Issued: May 8, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-76.15 Cancels 1st Revised Page 2-76.15

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(C)

(This page filed under Transmittal No. 2457 )

Issued: May 8, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-76.16 Cancels 1st Revised Page 2-76.16

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(C)

(This page filed under Transmittal No. 2457 )

Issued: May 8, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-76.17 Cancels 1st Revised Page 2-76.17

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(C)

(This page filed under Transmittal No. 2457 )

Issued: May 8, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-76.18 Cancels 1st Revised Page 2-76.18

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(C)

(This page filed under Transmittal No. 2457 )

Issued: May 8, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-76.19 Cancels 1st Revised Page 2-76.19

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(C)

(This page filed under Transmittal No. 2457 )

Issued: May 8, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-76.20 Cancels 9th Revised Page 2-76.20

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(5) High Capacity Special Access and MegaLink Custom (T) Service Equipped with a SecureNet Option

No credit will be allowed for an interruption period of less than 2.0 seconds. For a single service interruption greater than 2.0 seconds, the credit will be as follows.

SAWS Threshold

Over 2.0 Seconds

Service Category SAWS Credit Per Interruption

High Capacity Service Monthly Rate Equipped with SecureNet- All Rate Elements

MegaLink Custom Service Monthly Rate Equipped with SecureNet- All Rate Elements

To receive a credit for a service interruption greater than 2.0 seconds, the interruption must occur in that part of the service equipped with a SecureNet option (e.g., a loop failure on a Special Access Service equipped with Hub Redundancy would receive credit after a 2.0 second interruption, an interoffice facility failure on the same service would be credited after 30 minutes).

(This page filed under Transmittal No. 2992 )

Issued: March 17, 2004 Effective: April 1, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-76.21 Cancels 9th Revised Page 2-76.21

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(6) Network Reconfiguration Service (NRS) and Transport (T) Resource Management Service (TRM)

Network Reconfiguration Service and Transport Resource Management Service will be credited according to the SAWS schedule, below in addition to the credit allowance in Section 2.5.6.

SAWS Threshold SAWS Credit Per Interruption

Over 2 hours

(a) NRS and TRM Svcs. 1/2 of the monthly rate assoc. with DS1/DS3 Svcs.

Over 3 hours

(b) NRS and TRM Svcs. 1/2 of the monthly rate assoc. with all Spl. Access Svcs. except DS1 and DS3 Svcs.

(This page filed under Transmittal No. 2992 )

Issued: March 17, 2004 Effective: April 1, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 2-76.22 Cancels 6th Revised Page 2-76.22

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(7) Message Station Eqpt Recovery Charge and Administration (T) and Maintenance of Priority Restoration

Message Station Equipment Recovery Charge and Administration and Maintenance of Priority Restoration Services will be credited according to the SAWS schedule, below in addition to credit allowances in Section 2.5.6.

SAWS Threshold SAWS Credit Per Interruption

Over 2 hours

(a) Mess. Sta. Eqpt. 1/2 of the monthly rate Recovery Chg. and Adm. and Mtce. of Priority Restoration Svcs. assoc. with DS1 and DS3 Svcs.

Over 3 hours

(b) Mess. Sta. Eqpt. 1/2 of the monthly rate Recovery Chg. and Adm. and Mtce. of Priority Restoration Svcs assoc. with all Spl. Access Svcs. except DS1 and DS3 Svcs.

(This page filed under Transmittal No. 2992 )

Issued: March 17, 2004 Effective: April 1, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-76.23 Cancels 2nd Revised Page 2-76.23

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(C)

(This page filed under Transmittal No. 2457 )

Issued: May 8, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-77 Cancels 9th Revised Page 2-77

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(8) STN and ReliaNet (MAC and On-Net AC - Opt. 1) (T)

No credit will be allowed for STN and ReliaNet (MAC and On-Net AC) service for an interruption period of less than 2.5 seconds. For a single service interruption greater than 2.5 seconds, the credit will be as follows.

SAWS Threshold

Over 2.5 Seconds

Service Category SAWS Credit Per Interruption

All STN Service Monthly Rate Rate Elements

ReliaNet (MAC - Opt. A & B Monthly Rate and On-Net AC - Opt. 1)

In the event the Telephone Company is modifying the existing STN or ReliaNet service to add an Access Node or ReliaNet node, at the customer's request, and the service is interrupted, credit allowance as set forth in 2.5.6(A) preceding will apply.

(This page filed under Transmittal No. 2992 )

Issued: March 17, 2004 Effective: April 1, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 2-78 Cancels 5th Revised Page 2-78

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(C)

(This page filed under Transmittal No. 2457 )

Issued: May 8, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-78.1 Cancels 2nd Revised Page 2-78.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(C)

(This page filed under Transmittal No. 2457 )

Issued: May 8, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-78.2 Cancels 2nd Revised Page 2-78.2

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(C)

(This page filed under Transmittal No. 2457 )

Issued: May 8, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 2-78.3 Cancels 6th Revised Page 2-78.3

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(C)

(This page filed under Transmittal No. 2457 )

Issued: May 8, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-78.4 Cancels 3rd Revised Page 2-78.4

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(C)

(This page filed under Transmittal No. 2457 )

Issued: May 8, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 2-78.5 Cancels 7th Revised Page 2-78.5

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(A) Special Access Services (Cont'd)

(9) STN Interconnection with SecureNet Equipped MegaLink (T) Custom Service

No credit will be allowed for Interconnection of an STN with MegaLink Custom Service equipped with the SecureNet Serving Wire Center and Facility Redundancy for an interruption period less than 2.0 seconds. For a single service interruption greater than 2.0 seconds, the credit will be as follows.

SAWS Threshold

Over 2.0 seconds

Service Category SAWS Credit Per Interruption

STN Interconn. with Monthly Rate SecureNet Equipped MegaLink Custom Service

(This page filed under Transmittal No. 2992 )

Issued: March 17, 2004 Effective: April 1, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-78.6 Cancels 3rd Revised Page 2-78.6

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(B) Switched Access Service and Directory Assistance Service

Switched Access Service and Directory Assistance Service (T) will be credited according to the SAWS schedule below, in │ addition to the credit allowances in Section 2.5.6. (T) (D) SAWS Threshold (T)

Over 2 hours (S)

Service Category SAWS Credit Per Interruption (S)

(a) Entrance Facility

DS1 1/2 monthly rate (S) DS3 (Optical & │ Electrical) 1/2 monthly rate (S)

(b) Direct-Trunked Transport

DS1 (Fixed & Per Mile) 1/2 monthly rate DS3 (Fixed & Per Mile) 1/2 monthly rate

Revised material is issued under the authority of Special Permission No. 94-745 of the F.C.C.

Reissued material is scheduled to become effective June 22, 1995.

(This page filed under Transmittal No. 2472 )

Issued: June 20, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-78.7 Cancels 3rd Revised Page 2-78.7

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

2.5.7 Service Assurance Warranty Schedule (SAWS) (Cont'd)

(C) Diversity Service

Diversity Service will be credited according to the SAWS (T) schedule below, in addition to the credit allowances in │ Section 2.5.6. (T) (D) SAWS Threshold (T)

Over 2 hours (S)

Service Category SAWS Credit Per Interruption

(1) Diversity Service Monthly Rate

Revised material is issued under the authority of Special Permission No. 94-745 of the F.C.C.

Reissued material is scheduled to become effective June 22, 1995.

(This page filed under Transmittal No. 2472 )

Issued: June 20, 1995 Effective: June 22, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 2-79 Cancels 10th Revised Page 2-79

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

(This page filed under Transmittal No. 2400 )

Issued: November 10, 1994 Effective: December 25, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-79.1 Cancels 3rd Revised Page 2-79.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

Material and revised material previously appearing on this page now appears on 1st Revised Page 2-76.7.

(This page filed under Transmittal No. 2400 )

Issued: November 10, 1994 Effective: December 25, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-79.2 Cancels 4th Revised Page 2-79.2

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

Material and revised material previously appearing on this page now appears on 1st Revised Page 2-76.7 and 2nd Revised Page 2-76.8.

(This page filed under Transmittal No. 2400 )

Issued: November 10, 1994 Effective: December 25, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-80 Cancels 2nd Revised Page 2-80

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

Material and revised material previously appearing on this page now appears on 2nd Revised Page 2-76.9.

(This page filed under Transmittal No. 2400 )

Issued: November 10, 1994 Effective: December 25, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-81 Cancels Original Page 2-81

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

Material and revised material previously appearing on this page now appears on 1st Revised Page 2-76.10.

(This page filed under Transmittal No. 2400 )

Issued: November 10, 1994 Effective: December 25, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-81.1 Cancels 2nd Revised Page 2-81.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

Material and revised material previously appearing on this page now appears on Original Page 2-72.1.

(This page filed under Transmittal No. 2400 )

Issued: November 10, 1994 Effective: December 25, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-81.2 Cancels 1st Revised Page 2-81.2

ACCESS SERVICE

2. General Regulations (Cont'd)

2.5 Billing Regulations (Cont'd)

Material and revised material previously appearing on this page now appears on Original Page 2-72.2.

(This page filed under Transmittal No. 2400 )

Issued: November 10, 1994 Effective: December 25, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 14th Revised Page 2-82 Cancels 13th Revised Page 2-82

ACCESS SERVICE

2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services

Jointly Provided Access Service has one end of the service in one exchange telephone company operating territory and the other end of the service in another exchange telephone company operating territory. When Access Service, other than MicroLink II(1), is jointly provided, the exchange telephone companies involved will agree upon a billing, design and ordering arrangement which is consistent with the provisions contained in this section and the Ordering and Billing Forum Standards, Multiple Exchange Carrier Access Billing (MECAB) and Multiple Exchange Carrier Design and Ordering (MECOD). Customers who want to receive these documents may obtain ordering information from the Reference to Technical Publications section of this tariff. Prior to implementation of, or changes to these billing arrangements, the exchange telephone companies involved will give the affected customers 30 days notice.

The type of billing arrangement utilized for jointly provided access service is dependent upon the type of access service provided. Feature Group A (FGA) and Circuit Switched Line Side (BSA-A) Switched Access Services are provided under the Single Bill Arrangement as set forth in 2.6.1 following. Feature Groups B and D (FGB and FGD) and BSA-B, BSA- (D) D, Direct-Trunked Transport, Tandem-Switched Transport, DNAL Switched Access, Special Access, MegaLink Custom, Self-Healing Transport Network (STN) and Directory Assistance Services are provided under Meet Point Billing (MPB) Arrangements. MPB allows each involved exchange telephone company to provide service and bill for the portion of the access service that is rendered under its own tariff. Meet Point Billing is provided as either a Single Bill-Single Tariff MPB Arrangement or a Multiple Bill MPB Arrangement as specified in 2.6.2 and 2.6.3 respectively.

At the time an order is placed, the customer will be notified of the arrangement which will apply and any pertinent information pertaining thereto. For example, the customer will be notified as to the entity responsible for receipt of payment, answers to billing inquiries, adjustments to bills, etc.

(1) As of October 6, 2004, MicroLink II service utilizing the X.75 protocol is obsolete and limited to existing installations, at existing locations, for existing customers.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-83

ACCESS SERVICE

(M) 2. General Regulations (Cont'd) (T) 2.6 Jointly Provided Access Services (Cont'd)

2.6.1 Single Bill Arrangement

(A) General (T) The single bill arrangement applies to FGA and BSA-A (M) service. (T) (B) Ordering Provisions (T) The company where the first point of switching is located (M) shall accept the order for FGA or BSA-A service. The other company(ies) involved shall also receive a copy of the order from the carrier. (M) The exchange telephone companies involved in providing the (T) access service will develop a mutually agreeable working (M) arrangement to allow one of the exchange telephone (T) companies to perform Access Service Coordination (ASC) for (M) all services requested. (T) (C) Rating and Billing (M) The exchange telephone company that accepts the order for (T) service will arrange to provide the service and will bill (M) and collect all appropriate charges in accordance with the regulations, rate and charges in its Access Service Tariff.

Material and revised material appearing on this page formerly appeared on 13th Revised Page 41 and 11th Revised Page 41.1 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 2-84 Cancels 8th Revised Page 2-84

ACCESS SERVICE

2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

2.6.2 Single Bill-Single Tariff Meet Point Billing Arrangement

The Single Bill-Single Tariff Meet Point Billing (MPB) Arrangement allows the customer to receive one bill from the billing company for the entire jointly provided service. The billing company will be billed by the other exchange telephone company(ies) for that portion of the access service provided by each exchange telephone company.

(A) General

The Telephone Company will participate in the Single Bill- Single Tariff MPB Arrangement, for access services other than MicroLink II(1), if the exchange telephone companies involved agree to use the Single Bill-Single Tariff MPB Arrangement to render a bill to the customer and one of the other involved exchange telephone companies performs the billing company functions. In addition, for Switched Access FGB, FGD, BSA-B, or BSA-D, Switched Transport, (D) Directory Assistance Services and Directory Transport, one of the other exchange telephone companies must own or operate the end office. For Tandem-Switched Transport, one of the other telephone companies must own or operate the access tandem.

(B) Ordering

Each exchange telephone company involved in providing the service will accept an order for the access service from the customer.

For FGB, FGD, BSA-B, and BSA-D Switched Access and (D) Directory Assistance Services, the exchange telephone companies involved in providing the access service will develop a mutually agreeable working arrangement to allow one of the exchange telephone companies to perform Access Service Coordination (ASC) for all services requested.

For DNAL, Special Access, MegaLink Custom Service and STN Service, the exchange telephone company that performs the billing function will serve as the ASC.

(1) As of October 6, 2004, MicroLink II service utilizing the X.75 protocol is obsolete and limited to existing installations, at existing locations, for existing customers.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-85

ACCESS SERVICE

(M) 2. General Regulations (Cont'd) (T) 2.6 Jointly Provided Access Services (Cont'd)

2.6.2 Single Bill-Single Tariff Meet Point Billing Arrangement (Cont'd)

(C) Rating and Billing of Service

The exchange telephone company that performs the billing (T) company function will bill and collect all appropriate (M) charges in accordance with the regulations, rates and │ charges in its Access Service Tariff. The single bill will list the billing company's rates and charges.

Material and revised material appearing on this page formerly appeared on 10th Revised Page 41.2 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-86

ACCESS SERVICE

(M) 2. General Regulations (Cont'd) (T) 2.6 Jointly Provided Access Services (Cont'd)

2.6.3 Multiple Bill Meet Point Billing Arrangement

The Multiple Bill Meet Point Billing (MPB) Arrangement allows each exchange telephone company providing service to bill the (T) customer for its portion of a jointly provided access service (M) according to its Access Service Tariff charges. (T) (A) General

The exchange telephone companies will render separate bills for access service, other than FGA or BSA-A Service. This option will be the default billing method when the administration of a single bill arrangement cannot be agreed upon by the exchange telephone companies involved.

(B) Ordering

Each exchange telephone company involved in the provision (T) of the access service will accept an order for the access (M) service from the customer. The exchange telephone (T) companies involved in providing the access service will (M) develop a mutually agreeable working arrangement to allow (T) one of the exchange telephone companies to perform the ASC (M) for all services requested. (T) (C) Rating and Billing of Service (T) Each exchange telephone company will provide its portion of (M) the access service based on the regulations, rates and (M) charges contained in its Access Service Tariff, subject to the following rules, as appropriate.

Material and revised material appearing on this page formerly appeared on 8th Revised Page 41.1.1 and 24th Revised Page 42 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-87 Cancels Original Page 2-87

ACCESS SERVICE

2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

2.6.3 Multiple Bill Meet Point Billing Arrangement (Cont'd)

(C) Rating and Billing of Service (Cont'd)

(1) Distance Sensitive Rate Elements

The charges to be billed by the Telephone Company for distance sensitive rate elements (e.g., Transport or Mileage) will be determined as follows:

(a) Develop total mileage for the service using the V&H Coordinate Method described in National Exchange Carrier Association, Inc., Tariff F.C.C. No. 4 (NECA Tariff F.C.C. No. 4).

(b) Obtain the appropriate billing percentage from NECA Tariff F.C.C. No. 4 for the Telephone Company premises involved.

(c) The Telephone Company's rates and charges are multiplied by the appropriate quantity and billing percentage to obtain the charges for the Telephone Company.

(2) Nondistance Sensitive Rate Elements

The application of nondistance sensitive rate elements varies according to the rate structure and the location of the facilities involved as set forth following, except for Switched Access feature groups, BSAs and Directory Access Nonrecurring Charge application which is specified in (3) following.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-88 Cancels 1st Revised Page 2-88

ACCESS SERVICE

2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

2.6.3 Multiple Bill Meet Point Billing Arrangement (Cont'd)

(C) Rating and Billing of Service (Cont'd)

(2) Nondistance Sensitive Rate Elements (Cont'd)

(a) When rates and charges are listed on a per point of termination basis, the Telephone Company's rates will be billed for the terminations within the Telephone Company's operating territory.

(b) When rates and charges are listed on a per unit basis (e.g., central office bridging or multiplexing), the Telephone Company's rates and charges will apply for units located in the Telephone Company's operating territory.

(c) When rates and charges are developed on an individual case basis, such rates will be developed for the portion of the service provided by the Telephone Company.

(d) When rates and charges are listed on a per service basis, these rates and charges will be billed.

(e) Fifty percent (50%) of the fixed portion of the Special Access Channel Mileage, the MegaLink Custom Service Interoffice Mileage, DNAL Mileage and the Direct-Trunked Transport will be billed when the service terminates in the Telephone Company's operating territory.

(f) Fifty percent of the per minute of use portion of the Tandem End Office Multiplexing, Tandem- (N) Switched Transmission, Host/Remote Transmission (N) or the Tandem-Switched Directory Transmission will be billed when the service terminates in the Telephone Company's operating territory.

Filed in compliance with FCC Orders DA 97-2358; FCC 97-158, as amended; FCC 97- 401; and FCC 97-403.

(This page filed under Transmittal No. 2678 )

Issued: December 17, 1997 Effective: January 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-89 Cancels 1st Revised Page 2-89

ACCESS SERVICE

2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

2.6.3 Multiple Bill Meet Point Billing Arrangement (Cont'd)

(C) Rating and Billing of Service (Cont'd)

(3) Switched Access Feature Group and BSA Nonrecurring Charges and Directory Access Nonrecurring Charges

(a) The nonrecurring charges for FGB, FGD, BSA-B, and (D) BSA-D Switched Access Service, as set forth in 6.9 (Rates and Charges), and for Directory Assistance Service, as set forth in 9.5 (Rates and Charges), are used to compute the billed nonrecurring charges for the Telephone Company.

(b) The multiple bill adjustment factors are determined as follows:

1. When the Telephone Company's facilities are the first point of switching from the customer's premises, the following factors will apply:

- First Trunk = 100% - Additional Trunk per Access Order = 100%

2. When the Telephone Company facilities are not the first point of switching from the customer's premises, but the Telephone Company does provide a portion of the dedicated trunks, the following factors will apply:

- First Trunk = 64% - Additional Trunk per Access Order = 41%

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-90 Cancels Original Page 2-90

ACCESS SERVICE

2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

2.6.3 Multiple Bill Meet Point Billing Arrangement (Cont'd)

(C) Rating and Billing of Service (Cont'd)

(3) Switched Access Feature Group and BSA Nonrecurring (C) Charges and Directory Access Nonrecurring Charges (T) (Cont'd)

(b) (Cont'd)

3. When the Telephone Company is not required to activate trunks to the first point of switching, the feature group or BSA. (C) Installation Nonrecurring Charge does not apply.

(c) The Telephone Company's charges, as set forth in (a) preceding, will be multiplied by the appropriate quantities and multiple bill adjustment factors, as set forth in (b) preceding to obtain the appropriate nonrecurring charges for the Telephone Company.

(4) Example of Jointly Provided Direct-Trunked Transport (T)

FGD or BSA-D Switched Access is ordered to End Office A. End Office A is in the operating territory of Exchange Telephone Company A. Premises of the ordering customer is in the operating territory of Exchange Telephone Company B. EXCHANGE TELEPHONE COMPANY A EXCHANGE TELEPHONE COMPANY B (ETCA) (ETCB) OPERATING TERRITORY OPERATING TERRITORY

CUSTOMER (T) END USER ETCA ETCB IP PREMISES

BP=57% BP=43% SERVING WIRE CENTER (T)

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-91 Cancels Original Page 2-91

ACCESS SERVICE

2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

2.6.3 Multiple Bill Meet Point Billing Arrangement (Cont'd)

(C) Rating and Billing of Service (Cont'd)

(4) Example of Jointly Provided Direct-Trunked Transport (T) (Cont'd) (T)

(a) Airline Mileages (Using NECA No. 4)

- ETCA premises to ETCB premises = 22.1, rounded = 23

(b) Direct-Trunked Transport charges (C)

- Assume ETCA rate for Direct-Trunked Transport is $24.00 per mile (C)

- Assume ETCA Billing Percentage (BP) is 57

- Assume ETCB rate for Direct-Trunked Transport (C) is $22.37 per mile (C)

- Assume ETCB Billing Percentage (BP) is 43

- Assume ETCA fixed rate for Direct-Trunked (C) Transport is $60.00

- Assume ETCB fixed rate for Direct-Trunked Transport is $54.74

Certain material and revised material previously appearing on this page now appears on Original Page 2-91.1.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-91.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

2.6.3 Multiple Bill Meet Point Billing Arrangement (Cont'd)

(C) Rating and Billing of Service (Cont'd)

(4) Example of Jointly Provided Direct-Trunked Transport (Cont'd)

(c) Formula: (Number of miles times ETCA's per mile rate times ETCA's Billing Percentage) plus (one half of ETCA's fixed rate) equals ETCA Direct-Trunked Transport charge

Calculation of Transport Charges

ETCA Direct-Trunked Transport Charge

(23 * $24.00 * 57/100) + ($60.00 * .5) = $344.64

ETCB Direct-Trunked Transport Charge

(23 * $22.37 * 43/100) + ($54.74 * .5) = $248.61

(5) Example of Jointly Provided Tandem-Switched Transport

FGD or BSA-D Switched Access is ordered as a tandem routed service to End Office A. End Office A is in the operating territory of Exchange Telephone Company A. The premises of the ordering customer, the serving wire center and the access tandem through which the service is switched is in the operating territory of Exchange Telephone Company B.

Certain material and revised material appearing on this page formerly appeared on Original Page 2-91.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-91.2

ACCESS SERVICE

(T) 2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

2.6.3 Multiple Bill Meet Point Billing Arrangement (Cont'd) (T) (C) Rating and Billing of Service (Cont'd) (N) (5) Example of Jointly Provided Tandem-Switched Transport (Cont'd) (x) (a) Airline Mileages (Using NECA No. 4)

- ETCB serving wire center to ETCA End Office = 29.3, rounded to 30 miles.

(b) Switched Transport charges for 9000 access minutes

- Assume ETCA rates for Tandem-Switched Transmission are $0.000300 per minute of use and $0.000090 per minute of use per mile.

- Assume ETCA Billing Percentage (BP) is 57%.

- ETCA will not bill Tandem Switching since the access tandem is in the operating territory of ETCB.

- Assume ETCB rates for Tandem-Switched Transmission are $0.000303 per minute of use and $0.000037 per minute of use per mile.

- Assume ETCB rate for Tandem-Switching is $0.000804 per minute of use.

- Assume ETCB Billing Percentage (BP) is 43%.

(x) Filed under authority of Special Permission No. 91-258 of the F.C.C.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-91.3

ACCESS SERVICE

(T) 2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

2.6.3 Multiple Bill Meet Point Billing Arrangement (Cont'd) (T) (C) Rating and Billing of Service (Cont'd) (N) (5) Example of Jointly Provided Tandem-Switched Transport (Cont'd)

(c) Formula:

ETCA Tandem-Switched Transmission

(Minutes of use times ETCA's Tandem-Switched Transmission per minute of use rate times .50) plus (Minutes of use times number of miles times ETCA's Tandem-Switched Transmission per minute of use per mile rate times ETCA's Billing Percentage) equals ETCA's Tandem-Switched Transmission charge

ETCB Tandem-Switched Transmission

(Minutes of use times ETCB's Tandem-Switched Transmission per minute of use rate times .50) plus (Minutes of use times number of miles times ETCB's Tandem-Switched Transmission per minute of use per mile rate times ETCB's Billing Percentage) equals ETCB's Tandem-Switched Transmission charge

ETCB Tandem Switching

Minutes of Use times ETCB's minute of use rate equal ETCB's Tandem Switching charge

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-91.4 Cancels Original Page 2-91.4

ACCESS SERVICE

2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

2.6.3 Multiple Bill Meet Point Billing Arrangement (Cont'd)

(C) Rating and Billing of Service (Cont'd)

(5) Example of Jointly Provided Tandem-Switched Transport (Cont'd)

(c) Formula: (Cont'd)

Calculation of Tandem-Switched Transport Charges:

ETCA Total Tandem-Switched Transport Charge

(9000 X $0.000300 X .50) + (9000 X 30 X $0.000090 X .57) = $15.20 (T)

ETCB Switched Transport Charge:

(9000 X $0.000303 X .50) + (9000 X 30 X $0.000037 X .43) = $5.66

ETCB Tandem Switching Charge:

(9000 X $0.000804) = $7.24

ETCB Total Tandem-Switched Transport Charge:

$5.66 + $7.24 = $12.90

(This page filed under Transmittal No. 2357 )

Issued: May 17, 1994 Effective: July 1, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-91.5 Cancels 3rd Revised Page 2-91.5

ACCESS SERVICE

2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

(D)

Material is filed under authority of Special Permission No. 96-723 of the F.C.C. and withdraws material issued under Transmittal No. 2557 to become effective October 5, 1996.

(This page filed under Transmittal No. 2577 )

Issued: September 27, 1996 Effective: October 5, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-91.6 Cancels 3rd Revised Page 2-91.6

ACCESS SERVICE

2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

(D)

Material is filed under authority of Special Permission No. 96-723 of the F.C.C. and withdraws material issued under Transmittal No. 2557 to become effective October 5, 1996.

(This page filed under Transmittal No. 2577 )

Issued: September 27, 1996 Effective: October 5, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-91.7 Cancels 3rd Revised Page 2-91.7

ACCESS SERVICE

2. General Regulations (Cont'd)

2.6 Jointly Provided Access Services (Cont'd)

(D)

(D)

Material is filed under authority of Special Permission No. 96-723 of the F.C.C. and withdraws material issued under Transmittal No. 2557 to become effective October 5, 1996.

(This page filed under Transmittal No. 2577 )

Issued: September 27, 1996 Effective: October 5, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-92 Cancels 9th Revised Page 2-92

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions

Certain terms used herein are defined as follows:

Access Code

Denotes a uniform seven digit code assigned by the Telephone Company to an individual customer. The seven digit code has the form 101XXXX or 950-XXXX.

Access Customer Name Abbreviation (ACNA)

Denotes a three alpha character code that identifies the customer to which the Access Service bill is rendered.

Access Customer Terminal Location (ACTL) (N) Denotes the eleven (11) character Common Language Location Identifier (CCLI) code identifying the customer’s Point of Presence (POP/InterLATA facility terminal location). (N)

Access Minutes

Denotes that usage of exchange facilities in interstate or foreign service for the purpose of calculating chargeable usage. Access minutes are as described in Section 6 (Switched Access Service).

Access Node

Denotes a Telephone Company central office (CO Access Node) or a customer designated premises (Premises Access Node) equipped with STN or ReliaNet features and functions.

Access Tandem

Denotes a Telephone Company switching system that provides a concentration and distribution function for originating or terminating traffic between end offices and a customer's premises.

Access Tandem Network

Denotes the network of trunk groups for originating and/or terminating Switched Access traffic between a single access tandem and the Telephone Company end offices subtending that tandem.

(This page filed under Transmittal No. 3019 )

Issued: November 24, 2004 Effective: November 25, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-92.1 Cancels 2nd Revised Page 2-92.1

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Access Transport Parameter

Denotes the capability to transport certain information (e.g., Called Party Subaddress, Calling Party Subaddress, High-Layer Compatibility and Low-Layer Compatibility) received from an originating end user transparently through the SS7 network to the terminating switch.

Account Owner

Denotes a company, including the Telephone Company, that provides (N) end users with local service, stores and/or administers the end user’s information in the Telephone Company’s Line Information Data Base (LIDB). (N) Add/Drop Multiplexing (ADM)

Denotes the capability for lower level signals to be added or dropped from an optical carrier channel associated with the SONET transmission.

Advanced Carrier Identification Service (ACIS) Code

Denotes any code assigned by the North American Numbering Plan Administrator (NANPA) that is used in conjunction with ACIS.

Aggregator

Denotes any individual, partnership, association, joint-stock company, trust, governmental entity or corporation as defined under Part 64.708(b) of the F.C.C. Rules and Regulations.

(This page filed under Transmittal No. 2932 )

Issued: March 11, 2003 Effective: March 26, 2003

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 2-93 Cancels 5th Revised Page 2-93

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Alarm Collection Device

Denotes the common equipment element required to collect and transmit the various alarms from the interconnector's designated equipment to the Telephone Company's surveillance system.

Alternate Billing Services

Denotes the term for services that provides end users the ability to bill calls to an account not necessarily associated with the originating line.

Alternate Use

Denotes when a service is arranged by the Telephone Company so that the customer can select different types of transmission at different times.

Answer Message

Denotes an SS7 message sent in the backward direction to indicate that the call has been answered.

Answer/Disconnect Supervision

Denotes the transmission of the switch trunk equipment supervisory signal (off-hook or on-hook) to the customer's point of termination as an indication that the called party has answered or disconnected.

Area of Service (AOS)

Denotes the geographical area from which an 800 subscriber can receive calls dialed to the subscriber's 800 number.

Assumed Average Access Minutes

Denotes the usage that will be billed each month to customers for FGA and BSA-A access arrangement served from Telephone Company serving end offices where actual recorded minutes of use are not available.

Asynchronous

Denotes the transmission of data that is not related to a specific frequency or to the timing of the transmission facility. The data transmission is characterized by individual characters, encapsulated with start and stop bits, from which a receiver derives the necessary timing for sampling bits and start/stop transmission.

(D)

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-94 Cancels 4th Revised Page 2-94

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

(D)

Attenuation Distortion (D) Denotes the difference in loss at specified frequencies relative to the loss at 1004 Hx, unless otherwise specified.

Average Account Life Denotes the depreciation life prescribed by the Federal Communications Commission for each class of telephone plant.

Average Business Day Denotes the measurement procedure for the determination of busy hour minutes of capacity, 8:00 AM - 11:00 PM Monday through Friday, excluding national holidays.

Balance (100 Type) Test Line Denotes an arrangement in an end office which provides for balance and noise testing.

Basic Service Element (BSE) Denotes an unbundled service option available only with Basic Serving Arrangements.

Basic Serving Arrangement (BSA) Denotes a category of Switched Access Service differentiated by technical characteristics, e.g., line vs. trunk side connection at the Telephone Company entry switch.

Basic Transmission Equipment Denotes, for virtual collocation, central office circuit equipment that provides functionality requested by the interconnector and also provides technical compatibility with an interconnector's equipment or support systems located on the interconnector's side of the demarcation point. Basic transmission equipment does not include enhanced services equipment, customer premises equipment or switches.

Billed Number Screening (BNS) Denotes a process which utilizes a data base to determine specific characteristics and/or customer preferences on a billed line number. Examples would include, whether or not the line is a public telephone and whether the billed customer associated with the line will accept a collect call.

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202 (D)

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-95 Cancels 3rd Revised Page 2-95

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Billing Account Number (BAN)

Denotes a code that identifies the customer's billing account to which Access Services are billed.

Billing Clearing House

Denotes a billing and collection service bureau for Interexchange Carriers (ICs) and other telecommunication companies which become members and wish to arrange for the billing and collection of long distance services provided to end users.

Bit

Denotes the smallest unit of information in the binary system of notation. (Nx) Broadcast Traffic

Ethernet frames that are forwarded to all stations on a virtual local network using the broadcast address. (Nx)

Building

Denotes a structure under one roof or two or more structures on one premises which are connected by an enclosed or covered passageway which is interpreted to mean the "same building". In no case can conduit be considered as an enclosed passageway nor buildings connected by a covered public mall be the "same building."

Business Day

Denotes the times of day that the Telephone Company is open for business. This is 8:00 A.M. to 5:00 P.M., Monday through Friday.

(x) Issued under the Authority of Special Permission No. 05-017 of the FCC.

(This page filed under Transmittal No. 3052 )

Issued: March 30, 2005 Effective: March 31, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 2-96 Cancels 12th Revised Page 2-96

ACCESS SERVICE 2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Busy Hour Minutes of Capacity (BHMC)

Denotes the customer specified maximum amount of Switched Access Service and/or Directory Assistance Service access minutes the customer expects to be handled in an end office switch during any hour in an 8:00 A.M. to 11:00 P.M. period for the feature group, basic serving arrangement or Directory Assistance Service ordered. This customer furnished BHMC quantity is the input data the Telephone Company uses to determine the number of transmission paths for the feature group, basic serving arrangement or Directory Assistance Service ordered.

Call

Denotes an attempt for which the complete destination code or a Carrier Access Code (e.g., 950-XXXX, 101XXXX#, 0- or 00-) is provided in the originating direction or a complete destination code is provided in the terminating direction.

Call-out

A customer required dispatch outside of normal business hours when a technician is not available for dispatch.

Carrier or Common Carrier

See Interexchange Carrier

Carrier Identification Code (CIC)

Denotes a numeric code that is assigned by Bellcore to long distance carriers for the provisioning of Feature Group B and/or D trunk side Access Service. The numeric code uniquely identifies the carrier.

Carrier Identification Code Parameter (CIP)

Denotes the transmission of the Carrier Identification Code (CIC) to the customer within the Initial Address Message (IAM) of an originating FGD or BSA-D call.

Cascading Service User (N)

Customer who has their service on a channel or port of a multiplexed DS1, DS3 or SONET service belonging to a Third Party Host through a Cascading Shared Network Arrangement.

Cascading Shared Network Arrangement

A service offering whereby a Cascading Service User may connect subtending services to a Third Party Host’s multiplexed DS1, DS3 or SONET service which is on a Shared Network Arrangement with a Host Subscriber, and the Telephone Company will undertake to maintain (N) separate customer records and billing.

C Band

1525-1565 nanometers (unit of spatial measurement that is one billionth of a meter).

CCS

Denotes a hundred call seconds, which is a standard unit of traffic load that is equal to 100 seconds of usage or capacity of a group of servers (e.g., trunks).

Cellular Mobile Carrier

A common carrier provider of domestic public cellular telecommunications service, as defined in Part 22, Subpart K, of the F.C.C. Rules and Regulations.

(This page filed under Transmittal No. 3131 )

Issued: May 11, 2006 Effective: May 26, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-97 Cancels 9th Revised Page 2-97

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Central Office

Denotes a local Telephone Company switching system where Telephone Exchange Service customer station loops are terminated for purposes of interconnection to each other and to trunks.

Central Office Prefix

Denotes the first three digits (NXX) of the seven digit telephone number assigned to a customer's Telephone Exchange Service when dialed on a local basis.

Centralized Automatic Reporting On Trunks (CAROT) Testing

Denotes a type of testing which includes the capacity for measuring operational and transmission parameters.

Channel(s)

Denotes an electrical or photonic, in the case of fiber optic based transmission systems, communications path between two or more points of termination, or for DNAL BSA, between a point of termination and a Telephone Company switch.

Channelize

Denotes the process of multiplexing-demultiplexing wider bandwidth or higher speed channels into narrower bandwidth or lower speed channels.

Channel Service Unit

Denotes equipment which performs one or more of the following functions; termination of a digital facility, regeneration of digital signals, detection and/or correction of signal format errors, and remote loop back.

Choke Network AKA High Volume Call-In (HVCI) Network (N)

Denotes a unique NXX that has a presence in several switches within the designated local calling area for which terminating calls are routed over dedicated trunk groups to a single tandem switch. This is done for the purpose of controlling the impact on the local network from potentially high volumes of terminating calls that might be directed to Directory Numbers (DN) within such NXXs at a customer's request. (N)

Clear Channel Capability

Denotes the utilization of increased usable bandwith per facility.

Reissued material is filed under authority of Special Permission No. 97-373 of the F.C.C.

(This page filed under Transmittal No. 2680 )

Issued: December 24, 1997 Effective: December 31, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 2-98 Cancels 5th Revised Page 2-98

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

C-Message Noise

Denotes the frequency weighted average noise within an idle voice channel. The frequency weighting, called C-message, is used to simulate the frequency characteristic of the 500-type telephone set and the hearing of the average subscriber.

C-Notched Noise

Denotes the C-message frequency weighted noise on a voice channel with a holding tone, which is removed at the measuring end through a notch (very narrow band) filter.

Coin Station

Denotes a location where Telephone Company equipment is provided in a public or semipublic place where Telephone Company customers can originate telephonic communications and pay the applicable charges by inserting coins into the equipment.

Commingling(1) (T)

Commingling means the connecting, attaching or otherwise linking of an unbundled network element, or a combination of unbundled network elements, to one or more facilities or services that a requesting telecommunications carrier has obtained at wholesale from the Telephone Company, or the combining of an unbundled network element, or a combination of unbundled network elements with one or more such facilities or services. Commingle means the act of commingling.

Committed Information Rate (CIR)

A statistically guaranteed level of transmission or guaranteed bandwidth that the Ethernet network will provide to the Basic Connection when information (or data) needs to be transmitted.

(1) In the event the Commission or a court, pursuant to any regulatory or judicial review of the Commission’s Review of the Section 251 Unbundling Obligations of Incumbent Local Exchange Carriers, Report and Order and Order on Remand and Further Notice of Proposed Rulemaking, CC Docket No. 01-338, FCC 03-36, para. 581 (released Aug. 21, 2003) (Triennial Review Order), vacates, stays, remands, reconsiders, or rejects the portion of the Triennial Review Order requiring ILECs to permit commingling, the terms and conditions of this tariff authorizing commingling, which are identified with a footnote, shall cease to be effective as of the effective date of the Commission order or the issuance of the court’s mandate. In that event, the Telephone Company will provide customers that have commingled UNE(s) and/or UNE Combination(s) with wholesale services obtained under this Tariff written notice that, within 30 days, customers must either convert such UNE(s) or UNE Combination(s) to a comparable service, or disconnect such UNE(s) and/or UNE Combination(s) from those wholesale services. Failure to provide the Telephone Company instructions to convert or disconnect such UNE(s) and/or UNE Combination(s) within 30 days, as described above, shall be deemed authorization to convert the UNE(s) and/or UNE Combination(s) to comparable access services at month-to-month rates.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-98.1

2. General Regulations (Cont'd) (Nx)

2.7 Definitions (Cont'd) (Nx)

Common Channel Signaling (CCS) (Mx)

Denotes a high speed packet switched communications network which is separate (out of band) from the public packet switched and message networks. Its purpose is to carry addressed signaling messages for individual trunk circuits and/or database related services between Signaling Points in the CCS network.

Common Line

Denotes a line, trunk, pay telephone line or other facility provided under the general and/or local exchange service tariffs of the Telephone Company, terminated on a central office switch. A common line-residence is a line or trunk provided under the residence regulations of the general and/or local exchange service tariffs. A common line-business is a line provided under the business regulations of the general and/or local exchange service tariffs. (Mx)

(x) Issued under authority of Special Permission No. 03-101 of the FCC.

Certain material appearing on this page previously appeared on 3rd Revised Page 2-98.

(This page filed under Transmittal No. 2973 )

Issued: December 1, 2003 Effective: December 2, 2003

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-99 Cancels Original Page 2-99

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Communications System

Denotes channels and other facilities which are capable, when not connected to the Telecommunications Network, of two-way communications between customer provided terminal equipment.

Confirmed Due Date (N)

Denotes the date provided by the Telephone Company on which work activity is scheduled to be completed and the service is available for use by the customer.

Connecting Facility Assignment (CFA)

Denotes a code that identifies the Exchange Company carrier system and channel to be used from a Wide Band Analog or a High Capacity Facility.

Customer(s)

Denotes any individual, partnership, association, joint-stock company, trust, corporation or governmental entity or any other entity which subscribes to the services offered under this tariff, including both Interexchange Carriers (ICs) and End Users.

Customer Carrier Name Abbreviation (CCNA)

Denotes a three alpha character code that identifies the Access Customer submitting the Access Order and receiving confirmation of the Order.

Customer Circuit Reference (CKR)

Denotes a circuit number or range of circuit numbers assigned, administered and utilized by the customer as a cross reference to the Telephone Company's circuit numbers.

Customer Signaling Point Code (CSPC)

Denotes the code that identifies the customer's signaling point in the CCS network.

(This page filed under Transmittal No. 2223 )

Issued: September 1, 1992 Effective: October 16, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 2-100 Cancels 7th Revised Page 2-100

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Customer Terminal Location

See Point of Termination.

(D)

(D)

Data Transmission (107 Type) Test Line

Denotes an arrangement which provides for a connection to a signal source which provides test signals for one-way testing of data and voice transmission parameters.

Decibel (dB)

Denotes a unit used to express relative difference in power, usually between acoustic or electric signals, equal to ten (10) times the common logarithm of the ratio of two signal powers.

Decibel Reference Noise C-Message Weighting

Denotes noise power measurements with C-Message weighting in decibels relative to a reference 1000 Hz tone of 90 dB below 1 milliwatt.

Decibel Reference Noise C-Message Reference to 0

Denotes noise power in "Decibel Reference Noise C-Message Weighting" referred to or measured at a zero transmission level point.

Demarcation Point

Denotes the point (referred to as Demarc Point or Network Interface) of interconnection between the Telephone Company's facilities and the wiring at the subscriber's premises. The Demarc Point shall consist of wire or a jack conforming to Subpart F of Part 68 of the Federal Communications Commission's Rules and Regulations.

For Expanded Interconnection provided as virtual collocation or SONET- Based Interconnection (SBI), the demarcation point denotes the virtual network interface between the Telephone Company and the interconnector. The virtual network interface is the location at which Telephone Company ownership and responsibility for maintenance of the entrance cable begins. This location is normally a point on the public right- of-way near the Telephone Company's entrance manhole. The demarcation point is specified by the Telephone Company.

Desired Due Date

Denotes the date the customer desires service.

(This page filed under Transmittal No. 2886 )

Issued: July 21, 2000 Effective: August 5, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 14th Revised Page 2-101 Cancels 13th Revised Page 2-101

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Detail Billing

Denotes the listing of each message and/or rate element charged to a customer on a bill prepared by the Telephone Company.

(D)

(D)

Digital Transmission Link (DTL)

Denotes a high capacity channel which delivers the same 44.736 electrical signal at each Access Node in a given STN.

Direct-Trunked Transport Facility

Denotes a Switched Transport facility between a Telephone Company serving wire center and an end office that provides a customer with dedicated transport without routing through an access tandem.

Directory Assistance

Denotes the provision of access to a Directory Assistance Location and a Telephone Company Directory Assistance operator.

Directory Assistance Location

Denotes a Telephone Company office where Telephone Company equipment first receives the Directory Assistance call from a customer's end user and selects the first operator position to respond to the Directory Assistance call.

Donor Switch

Denotes the original switch source of an NXX that has been designated as portable and from which a subscriber has moved its service, while retaining its Directory Number, to a different service provider.

Dual Gateway Network Element

Denotes the network element that is capable of supporting two access ports to the data communication channel which is used to transport messages within the SONET network. (See Gateway Network Element.)

Echo Control

Denotes the control of reflected signals in a telephone transmission path.

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: January 1, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-102 Cancels Original Page 2-102

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Echo Path Loss (EPL) (M)

Denotes the measure of reflected signal at a 4-wire point of interface without regard to the send and receive Transmission Level Point (TLP).

Echo Return Loss (ERL)

Denotes a frequency weighted measure of return loss over the middle of the voiceband (approximately 500 to 2500 Hz), where talker echo is most annoying.

Effective 2-Wire

Denotes a condition which permits the simultaneous transmission in both directions over a channel, however it is not possible to insure independent information transmission in both directions. Effective 2- wire channels may be terminated with 2-wire or 4-wire interfaces.

Effective 4-Wire

Denotes a condition which permits the simultaneous independent transmission of information in both directions over a channel. The method of implementing effective 4-wire transmission is at the discretion of the Telephone Company (physical, time domain, frequency- domain separation or echo cancellation techniques). Effective 4-wire channels may be terminated with a 2-wire interface at the customer premises; however, when terminated on a 2-wire facility, simultaneous independent transmission cannot be supported because the two wire interface combines the transmission paths into a single path.

Certain material previously appearing on this page now appears on 1st Revised Page 2-103.

Certain material appearing on this page formerly appeared on Original Page 2-101.

(This page filed under Transmittal No. 2270 )

Issued: March 30, 1993 Effective: May 14, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-103 Cancels 3rd Revised Page 2-103

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Electronic Access

Denotes the capability to electronically transmit data messages between a customer's computer and the Telephone Company's computer.

Electronic Connection (EC-1) (N)

Denotes a 51.84 Mbps bandwidth of the SONET transmission platform, which is an electrical equivalent of the optical OC1. A DS3 is mapped into the SONET format using an EC-1 as a packaging mechanism.

End Office Switch

Denotes a local Telephone Company switching system where Telephone Exchange Service customer station loops are terminated for purposes of interconnection to trunks. Included are Remote Switching Modules (RSM) and Remote Switching Systems (RSS) served by a host office in a different wire center.

End User

Denotes any customer of an interstate or foreign telecommunications service that is not a carrier, except that a carrier other than a Telephone Company shall be deemed to be an "end user" when such carrier uses a telecommunications service for administrative purposes and a person or entity that offers telecommunications services exclusively as a reseller shall be deemed to be an "end user" if all resale transmissions offered by such reseller originate on the premises of such reseller.

Entity

Denotes something that exists as a particular and discrete unit (e.g., corporations or subsidiary company).

Entrance Cable

Denotes a single mode dielectric fiber optic cabling arrangement that consists of a fiber optic cable from the Expanded Interconnection virtual network interface, the riser tail to which the fiber optic cable is spliced and the termination of the riser tail onto a fiber termination shelf within the Telephone Company's wire center.

Entrance Facility

Denotes a Switched Transport facility between a Telephone Company serving wire center and a customer premises that provides a customer with dedicated transport from the serving wire center to the customer's premises.

(This page filed under Transmittal No. 2531 )

Issued: January 16, 1996 Effective: March 1, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-103.1 Cancels 1st Revised Page 2-103.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Entry Switch

See First Point of Switching.

Envelope Delay Distortion (EDD)

Denotes a measure of the linearity of the phase versus frequency of a channel.

Equal Level Echo Path Loss (ELEPL)

Denotes the measure of Echo Path Loss (EPL) at a 4-wire interface which is corrected by the difference between the send and receive Transmission Level Point (TLP). ELEPL = EPL - TLP (send) + TLP (receive).

Equalized

Denotes a procedure which provides for the component frequencies of the material transmitted having about the same relationship at the two ends of the channel.

Ethernet Virtual Connection (EVC) (M)

A logical connection between the customer demarcation point and the (M) Ethernet network. (M)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-104 Cancels 9th Revised Page 2-104

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Exchange

Denotes a unit, generally smaller than a Local Access and Transport Area, established by the Telephone Company for the administration of communications service in a specified area which usually embraces a city, town or village and its environs. It consists of one or more central offices together with the associated facilities used in furnishing communications service within that area. One or more designated exchanges comprises a given Local Access and Transport Area.

Exchange Company Signaling Point Code (ECSPC)

Denotes the code that identifies the Telephone Company's signaling point in the CCS network.

Exit Message

Denotes an SS7 message sent to an end office by the Telephone Company tandem switch to mark the Carrier Connect Time when the Telephone Company's tandem switch sends an Initial Address Message to an Interexchange Customer.

Expanded Interconnection

Denotes an arrangement that provides an interconnector with the ability to interconnect its fiber optic facilities with certain Telephone Company-provided interstate Switched Access and Special Access Services. Expanded Interconnection may be provided as either virtual S y x collocation or as SONET-Based Interconnection (SBI).

Expected Measured Loss (EML)

Denotes a calculated loss which specifies the end-to-end 1004-Hz transducer loss on a terminated test connection between two readily accessible manual or remote test points. It is the sum of the inserted connection loss and test access loss including any test pads.

Facility

Denotes any one of the elements of physical telephone plant that is needed to provide access service, including switching systems, cables, fiber optic and microwave radio transmission systems.

(x) Reissued material is filed under authority of Special Permission No. 95-930 of the F.C.C. and is deferred until August 26, 1995.

(y) Reissued material is scheduled to become effective August 31, 1995.

(This page filed under Transmittal No. 2486 )

Issued: July 27, 1995 Effective: July 27, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-105 Cancels 2nd Revised Page 2-105

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Facility Interface

See Point of Termination.

Facility Signaling Point of Interconnection (FSPOI) (N)

Denotes a Telephone Company-designated transport termination facility used in connection with the provisioning of a STP Access Link used for CCS/SS7 Interconnection Service. (N)

Feature Group

Denotes a category of Switched Access Service differentiated by the technical characteristics, e.g., line side vs. trunk side connection at the Telephone Company entry switch.

Field Identifier (FID)

Denotes a two to four character alphanumeric code used to identify data, give instructions, or associate data that is to be processed as a group.

First Come - First Served

Denotes the practice for processing access orders. The first access order received will be the first access order processed.

First Point of Switching

Denotes the first Telephone Company location at which switching occurs on the terminating path of a call proceeding from the customer premises to the terminating end office and, at the same time, the last Telephone Company location at which switching occurs on the originating path of a call proceeding from the originating end office to the customer premises.

Frequency Shift

Denotes the change in the frequency of a tone as it is transmitted over a channel.

Gateway Network Element (GNE)

Denotes the network element that provides message concentration for an X.25 data communication network. The GNE provides an X.25 virtual circuit, between the network and the operational support system, which is used to transport messages to and from the operation support system and other subtending SONET network elements on the network. The data communication channel is used to transport the messages within the SONET network.

Grandfathered

Denotes Terminal Equipment, Multiline Terminating Systems and Protective Circuitry directly connected to the facilities previously utilized to provide services under the provisions of this tariff, and which are considered grandfathered under Part 68 of the F.C.C.'s Rules and Regulations.

(This page filed under Transmittal No. 3415 )

Issued: October 13, 2015 Effective: October 28, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-106 Cancels 1st Revised Page 2-106

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

High Capacity Channel

Denotes a channel for the transmission of isochronous serial digital data at a rate of 1.544 Mbps.

Host Computer

Denotes an intelligent processor or device connected to a network that satisfies the needs of remote users.

Host Office

Denotes an electronic switching system which provides call processing capabilities for one or more Remote Switching Modules or Remote (N) Switching Systems.

Host Subscriber (N) Denotes a customer with a multiplexed DS1, DS3 or SONET service who allows a Service User to occupy a channel or port of their multiplexed service through a Shared Network Arrangement.

Hub

Denotes a Telephone Company designated serving wire center at which bridging, multiplexing, Network Reconfiguration Service or Transport Resource Management Service functions are performed.

Immediately Available Funds

Denotes a corporate or personal check drawn on a bank account and funds which are available for use by the receiving party on the same day on which they are received and includes U.S. Federal Reserve bank wire transfers, U.S. Federal Reserve notes (paper cash), U.S. coins, U.S. Postal Money Orders and New York Certificates of Deposit.

Impedance Balance

Denotes the method of expressing Echo Return Loss and Singing Return Loss at a 4-wire interface whereby the gains and/or loss of the 4-wire portion of the transmission path, including the hybrid, are not included in the specification.

(This page filed under Transmittal No. 3131 )

Issued: May 11, 2006 Effective: May 26, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-107 Cancels 3rd Revised Page 2-107

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Improved Protection

Denotes a MegaLink Custom Service in which any portion of the protection channel is routed separate from the primary channel. The protection channel will be separate from the primary channel at least at the conduit level. The customer shall specify which portion(s) of the service will have improved protection.

Impulse Noise

Denotes any momentary occurrence of the noise on a channel over a specified level threshold. It is evaluated by counting the number of occurrences which exceed the threshold.

(D)

Individual Case Basis (ICB)

Denotes a condition in which the regulations, if applicable, rates and charges for an offering under the provisions of this tariff are developed based on the circumstances in each case.

Initial Address Message (IAM)

Denotes an SS7 message sent in the forward direction to initiate trunk set up with the busying of an outgoing trunk which carries the information about that trunk along with other information relating to the routing and handling of the call to the next switch.

Inserted Connection Loss (ICL)

Denotes the 1004 Hz power difference (in dBs) between the maximum power available at the originating end and the actual power reaching the terminating end through the inserted connection.

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-107.1 Cancels Original Page 2-107.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Interconnecting Signaling Transfer Point (STP)

Denotes the Telephone Company facility that routes messages between its own and other Common Channel Signaling networks.

Interconnector

Denotes any individual, partnership, association, joint-stock company, trust, corporation or other entity who uses Expanded Interconnection (T) for the purpose of connecting its services to Telephone Company- provided Special Access services or Switched Access services.

Interexchange Carrier (IC) or Interexchange Common Carrier

Denotes any individual, partnership, association, joint-stock company, trust, governmental entity or corporation engaged for hire in interstate or foreign communication by wire or radio, between two or more exchanges.

(This page filed under Transmittal No. 2308 )

Issued: November 18, 1993 Effective: February 15, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-108 Cancels 2nd Revised Page 2-108

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Intermediate Bridging Hub

Denotes the connection of three or more customer designated premises to form a Special Access multipoint service serving itself and a specified number of subtending wire centers.

Intermediate Multiplexing Hub

Denotes the conversion from higher to lower bit rate, or bandwidth, or from digital to voice grade channels, serving itself and a specified number of subtending wire centers.

Intermediate Tandem

Denotes a tandem with subtending non-conforming end offices, where neither the tandem nor the end offices have SSP functionality. Therefore, the Intermediate Tandem must subtend a tandem equipped with SSP functionality.

Intermodulation Distortion

Denotes a measure of the nonlinearity of a channel. It is measured using four tones, and evaluating the ratios (in dBs) of the transmitted composite four-tone signal power to the second-order products of the tones (R2), and the third-order products of the tones (R3).

International Direct Distance Dialing (IDDD)

Denotes the capability of switching international calls with service prefix and address codes having more digits than are capable of being switched through a standard FGD or BSA-D equipped end office. (D)

Internet Protocol (IP) Dedicated Access Connection

Denotes a dedicated high speed connection such as; High Speed (384 Kbps or higher download speed) Cable Modem, DSL Line, Dedicated T1 to the internet, Dedicated DS 3 to the internet or other dedicated IP private line.

Internet Protocol (IP) Enabled Voice Information Service (IP-VIS) Dedicated Location

Denotes a unique space owned or controlled by an IP-VIS provider, its agent or designee where the IP-VIS provider has located its media gateway used for IP-VIS or where the IP-VIS provider has located transmission facilities used for IP-VIS.

Internet Protocol (IP) Enabled Voice Information Service (IP-VIS)

Denotes Internet Protocol (IP) voice information services and applications provided over an IP network and their associated capabilities and functionalities that enable an IP-VIS user to send or receive a communication based on Internet Protocol. IP-VIS Service is service between a provider of Internet Protocol (IP) enabled voice information services and the IP-VIS user only.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-108.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

IP Enabled Voice Information Service (IP-VIS) Off Net Traffic (N)

Denotes IP-VIS Traffic originating from IP-VIS Users terminating traffic to non-Telephone Company End Users subtending Telephone Company Access Tandems via the TIPToP one way port interface.

IP Enabled Voice Information Service (IP-VIS) On Net Traffic

Denotes IP-VIS Traffic originating from IP-VIS Users and terminating to Telephone Company users via the TIPToP one way port interface.

IP Enabled Voice Information Service (IP-VIS) Traffic

Denotes any traffic that originates from or terminates to an IP-VIS User at an IP-VIS User Site. Also the traffic must travel on an Internet Protocol Network, and provide an accurate and dialable CPN as part of the call record, that when dialed, will reach that specific IP-VIS User, on their Internet Protocol Network at their IP-VIS User Site.

IP Enabled Voice Information Service (IP-VIS)User

Denotes a person utilizing a phone set dedicated for IP use for all voice traffic on the Internet Protocol Network at the IP-VIS User Site, and has an accurate and dialable CPN that when dialed, will reach the IP-VIS User on their Internet Protocol Network at their IP-VIS User Site. (N)

(This page filed under Transmittal No. 3019 )

Issued: November 24, 2004 Effective: November 25, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-109 Cancels 4th Revised Page 2-109

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

IP Enabled Voice Information Service (IP-VIS) User Site (N)

Denotes the specific temporary or permanent premises where a specific communication is initiated or received by the IP Enabled Voice Information Service (IP-VIS) User, using Internet Protocol.

Internet Protocol (IP) Gateway

Denotes a device that converts communications from Time Division Multiplexing (TDM) to Internet Protocol (IP).

Internet Protocol (IP) Network

Denotes a network that carries traffic in Internet Protocol on an IP Dedicated Access Connection between the IP-VIS User Site and the IP Gateway and does not change the protocol to any other protocol between the IP-VIS User Site and the IP Gateway. (N)

Interstate Communications (M)

Denotes both interstate and foreign communications.

Intrastate Communications

Denotes any communications within a state subject to oversight by a state regulatory commission as provided by the laws of the state involved. (M)

Kilocharacter

Denotes a unit of measurement of 1000 characters; i.e., a standard bit representation of a symbol, letter, number or punctuation mark. The measurement consists of user data only and not administrative data.

Kilosegment

Denotes a unit of measurement of 1000 segments; i.e., characters of data transmitted in a packet. The measurement consists of user data only and not administrative data.

Certain material previously appearing on this page now appears on 10th Revised Page 109.1

Certain material on this page previously appeared on 1st Revised Page 108.

(This page filed under Transmittal No. 3019 )

Issued: November 24, 2004 Effective: November 25, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-109.1 Cancels 9th Revised Page 2-109.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd) (M) L Band

1565-1605 nanometers (unit of spatial measurement that is one billionth of a meter}.

Line Information Data Base (LIDB)

Denotes a data base system containing certain call processing attributes of working telephone numbers or accounts. The attributes provide customers with information that can be used to facilitate completion of calls or services.

Line Side Connection

Denotes a connection of a transmission path to the line side of a local exchange switching system.

Link Type (LT)

Denotes the functionality of the signaling link providing interconnection/signaling paths between nodes of the Common Channel Signaling (CCS) network.

Local Access and Transport Area (LATA)

Denotes a geographic area established for the provision and administration of communications service. It encompasses one or more designated exchanges, which are grouped to serve common social, economic and other purposes.

Local Calling Area

Denotes a geographical area, as defined in the Telephone Company's Local or General Exchange Service tariff, in which an end user (Telephone Exchange Service subscriber) may complete a call without incurring Message Telecommunications Service (MTS) charges.

Local Tandem Switch

Denotes a local Telephone Company switching unit by means of which local or access telephonic communications are switched to and from an End Office Switch.

Location Routing Number (LRN)

Denotes a NPA-NXX-XXXX within a NXX that is assigned to a switch that serves ported numbers. The LRN is associated with ported numbers in the Local Number Portability data base along with the appropriate CCS/SS7 Point Code for the designated switch (i.e., the recipient switch) that is required to route calls directed to ported numbers working out of the switch.

Certain material on this page previously appeared on 4th Revised Page 109.

(This page filed under Transmittal No. 3019 )

Issued: November 24, 2004 Effective: November 25, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 2-110 Cancels 7th Revised Page 2-110

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Loop Around Test Line

Denotes an arrangement utilizing a Telephone Company central office to provide a means to make certain two-way transmission tests on a manual basis. This arrangement has two central office terminations, each reached by means of separate telephone numbers and does not require any specific customer premises equipment. Equipment subject to this test arrangement is at the discretion of the customer.

Loss Deviation

Denotes the variation of the actual loss from the designed value.

Manhole

Denotes an enclosure that provides access to subterranean Telephone Company facilities. Manholes are normally completely below ground or pavement and are accessed via a chimney or neck with a covered top. This term shall also include handholes, which also provide physical access to subterranean Telephone Company facilities, but which are smaller than manholes and are recessed into the ground or pavement.

Mapping

Denotes the formatting of a particular SONET transmission signal to allow for the carrying of specific service levels such as 44.376 Mbps (DS3) or 1.544 Mbps (DS1).

Media Access Control (MAC) Address

A data link layer protocol that defines how packets are (Nx transmitted on a local area network. )

Media Stimulated Mass Calling Events (Nx Denotes the use of Switched Access Service for calls placed to 800, 900, POTS, etc. telephone numbers in response to television and radio advertising for which a substantial call volume is anticipated during a short period of time. Media stimulated mass calling is highly peaked and often used in conjunction with call counting services for public opinion polls, marketing surveys, entertainment, etc.

MegaLink Data Channel

Denotes a channel for the digital transmission of synchronous serial data at rates of 2.4, 4.8, 9.6 or 56 kbps.

Merger

Denotes the union of two or more interests or corporations.

Message

Denotes a "call" as defined preceding.

(x) Issued under authority of Special Permission No. 03-101 of the FCC.

(This page filed under Transmittal No. 2973 )

Issued: December 1, 2003 Effective: December 2, 2003

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-111 Cancels Original Page 2-111

ACCESS SERVICE

2. General Regulations (Cont'd) (S) │ 2.7 Definitions (Cont'd) │ │ Metallic Channel │ │ Denotes a channel for the transmission of low speed varying signals at │ rates up to 30 baud. │ │ Milliwatt (102 Type) Test Line │ │ Denotes an arrangement in an end office which provides a 1004 Hz tone │ at 0 dBm0 for one-way transmission measurements toward the customer's │ premises from the Telephone Company end office. (S)

Mobile Access Tandem Connection (N) │ Denotes a connection provided between a Mobile Carrier's Mobile │ Telephone Switching Office and a Telephone Company access tandem using │ mobile radio services provided in the Telephone Company's intrastate │ tariffs. Mobile Access Tandem Connections provide Mobile Carriers with │ access to the public switched network of the Telephone Company. Type │ 2A Connections are a form of Mobile Tandem Connections. │ │ Mobile Carrier │ │ Denotes carriers regulated under Parts 5, 22 or 90 of the F.C.C. Rules │ and Regulations, including Cellular Mobile Carriers, Radio Common │ Carriers and Specialized Mobile Radio Carriers. │ │ Mobile End Office Connection │ │ Denotes a connection provided between a Mobile Carrier's Mobile │ Telephone Switching Office and a Telephone Company end office using │ mobile radio services provided in the Telephone Company's intrastate │ tariffs. Mobile End Office Connections provide Mobile Carrier's with │ access to the public switched network of the Telephone Company. Type 1 │ Connections are a form of Mobile End Office Connections.

Certain material previously appearing on this page now appears on Original Page 2-111.1.

Reissued material is scheduled to become effective July 1, 1992.

Material is filed under authority of Special Permission No. 92-125 of the F.C.C.

(This page filed under Transmittal No. 2186 )

Issued: March 25, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 19th Revised Page 2-111.1 Cancels 18th Revised Page 2-111.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Mobile Telephone Switching Office

Denotes a Mobile Carrier's switching system that is used to terminate mobile stations for the purposes of interconnection to each other and to trunks interfacing with the Telephone Company's public switched (Nx) network.

Multicast Traffic (Nx) Ethernet frames that are forwarded to multiple destinations that are identified using a multicast group address.

Multipoint Service

Denotes the connection of three or more customer designated premises through a Telephone Company Hub.

N-1 Network

Denotes the network of a carrier that is delivering a call to the Telephone Company's switch and is responsible for determining the status and Location Routing Number of the dialed NXX.

Network Access Point (NAP)

Denotes the point at which a particular STN Digital Transmission Link (DTL) may be interconnected with a Premises Access Node or with High Capacity Service or MegaLink Custom Services in a CO Access Node. Two NAPs are associated with each DTL, each being located in a customer specified Access Node.

Network Control Signaling

Denotes the transmission of signals used in the telecommunications system which perform functions such as supervision (control, status, and charge signals), address signaling (e.g., dialing), calling and called number identifications, rate of flow, service selection error control and audible tone signals (call progress signals indicating reorder or busy conditions, alerting, coin denominations, coin collect and coin return tones) to control the operation of the telecommunications system.

Network Interface

See Demarcation Point.

Non-diplexed

Non-diplexed means video and audio signals are provided on separate transmission interfaces.

Non IP Enabled Voice Information Service (IP-VIS) Traffic

Denotes any traffic not specifically defined as or not identifiable as IP-VIS traffic or any traffic that does not travel on an IP Dedicated Access Connection or any traffic that is not in Internet Protocol, for any portion of the communication between the IP-VIS User and the IP Gateway device, or any traffic from a Non IP-VIS User, or any traffic from a user site that is not an IP-VIS User Site, or any traffic classified by this tariff as Non IP-VIS traffic.

Non IP Enabled Voice Information Service (IP-VIS)User

Any user(s) not meeting the definition of an IP-VIS User. (x) Issued under the Authority of Special Permission No. 05-017 of the FCC. (This page filed under Transmittal No. 3052 )

Issued: March 30, 2005 Effective: March 31, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 2-112 Cancels 12th Revised Page 2-112

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd) (N) Non IP Enabled Voice Information Service (IP-VIS) Off Net Traffic

Denotes Non IP-VIS Traffic between a user (IP-VIS or non IP-VIS users) or customer (TIPToP or non TIPToP customers) and non-Telephone Company (Off Net) End Users via a TIPToP port interface.

Non IP Enabled Voice Information Service (IP-VIS) On Net Traffic

Denotes Non IP-VIS Traffic between a user (IP-VIS or non IP-VIS users) (N) or customer (IP or non IP customers) and Telephone Company users via a TIPToP port interface.

Nonsynchronous Test Line

Denotes an arrangement in step-by-step end offices which provides operational tests which are not as complete as those provided by the synchronous test lines, but can be made more rapidly.

North American Numbering Plan (NANP)

Denotes a three-digit Numbering Plan Area (NPA) code and a seven-digit telephone number made up of a three-digit Central Office code plus a four-digit station number.

Octet

Denotes 8-bits of binary information.

Off-Hook

Denotes the active condition of Switched Access or a Telephone Exchange Service line. (N) Off Net End User

Denotes a non-Telephone Company end user that subtends a Telephone Company Access Tandem.

On-Hook

Denotes the idle condition of Switched Access or a Telephone Exchange Service line.

Open Circuit Test Line

Denotes an arrangement in an end office which provides an ac open circuit termination of a trunk or line by means of an inductor of several Henries.

Operator Services

Denotes any telecommunications service that includes any automatic or live assistance to a consumer to arrange for billing or completion, or both, of a telephone call.

Operator Service System (OSS)

Denotes the group of interacting hardware (switching equipment, data links, and operator terminals) and software components for the provision of operator service functionality. Certain material previously appearing on this page now appears on 11th Revised

(This page filed under Transmittal No. 3019 )

Issued: November 24, 2004 Effective: November 25, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 2-113 Cancels 10th Revised Page 2-113

ACCESS SERVICE

2. General Regulations (Cont'd) (M)

2.7 Definitions (Cont'd)

Optical Carrier Level N (OC-N)

The physical line connection between two locations that uses optical signaling equipment for transmitting information over fiber optics. A

level of bit rate speed transmission is indicated by "N". OC-3 optical transmissions are at 155.52 Mbps; OC-12 at 622.08 Mbps and OC-48 at (M)

2,488.32 Mbps.

Optical Carrier Level M (OC-M)

The physical line connection between two locations on a sub-ring that

uses optical signaling equipment for transmitting information over fiber optics. A level of bit rate speed transmission is indicated by

"M". OC-3 optical transmissions are at 155.52 Mbps; OC-12 at 622.08 Mbps and OC-48 at 2,488.32 Mbps.

Optical Carrier Rate (OC#)

Denotes the form of measuring SONET transmission rates in terms of signal speed, line rate, bandwidth or service.

Optical Carrier Rate # Concatenated (e.g., OC3c)

Denotes the form of measuring SONET transmission rates in terms of signal speed, line rate, bandwidth or service between two locations

using optical signaling equipment. Concatenated indicates the ability to carry multiple 51.84 Mbps bandwidth signals as a single entity (e.g., OC3c carries (3) 51.84 Mbps signals as a single package at 155.520 Mbps).

Optical Carrier Signal

Denotes the specific message transmitted via SONET technology, quantified in terms of signal speed, line rate or bandwidth.

Originating Direction

Denotes the use of access service for the origination of calls from an end user premises to an IC premises.

Originating Point Code (OPC)

Denotes a code assigned to identify each Operator Service System (OSS) location.

Overhead

Denotes a portion of the SONET bandwidth capacity of a digital transmission signal which is used to monitor, protect, manage and improve the transmission of that carried signal.

OZZ Code

Denotes a code used to route certain types of traffic to specific trunk groups such as specific customer trunk groups, TOPS trunk groups, etc.

Certain material appearing on this page previously appeared on 12th Revised page 2-112.

(This page filed under Transmittal No. 3019 )

Issued: November 24, 2004 Effective: November 25, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2-113.1

ACCESS SERVICE (Nx) 2. General Regulations (Cont'd) (Nx) 2.7 Definitions (Cont'd) (Mx) Packet

Denotes the continuous sequence of data, with associated control information, i.e., routing, sequencing and error checking information, that is switched and transmitted through the packet switching network. Multiple packets may be required to carry one complete document or a (Mx) lengthy block of information. (Nx) Packet Delivery Rate (PDR)

Defined as the actual amount of useful and non-redundant information that is transmitted or processed from end-to-end across the Ethernet network. It is a function of bandwidth, error performance, congestion and other factors. PDR will be defined as a percentage of Ethernet frames offered to the network that successfully traverse the network, end-to-end, within the Committed Information Rate (CIR), and within a calendar month. Packet delivery is measured by averaging sample measurements taken during a calendar month from NTE to NTE to which the (Nx) customer ports are attached. (Mx) Packet Switching Network

Denotes the network that utilizes a transmission technique whereby a communication channel is shared by many users, each using the circuit only for the time required to transmit a single packet, each with its own appended control information. (Mx)

(x) Issued under authority of Special Permission No. 03-101 of the FCC.

Certain material appearing on this page previously appeared on 9th Revised Page 2-113.

(This page filed under Transmittal No. 2973 )

Issued: December 1, 2003 Effective: December 2, 2003

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 2-114 Cancels 8th Revised Page 2-114

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Partitioned Space

Denotes an area designated by the Telephone Company within a wire center to be used by an Interconnector for the sole purpose of installing, maintaining and operating its transmission equipment to connect the Interconnector's services to Telephone Company-provided services. Partitioned space is not considered to be a premises, as defined in 2.7 following, for the purposes of administering regulations and rates contained in this tariff.

Pay Telephone

Denotes Telephone Company-provided instruments and related facilities that are available to the general public for public convenience and necessity, including public, semipublic and coinless .

Personal Communications Service (PCS)

Denotes a set of capabilities that allows some combination of personal mobility, terminal mobility and service profile management.

(D)

(D)

Phase Jitter

Denotes the unwanted phase variations of a signal.

Point of Termination

See Demarcation Point.

Premises

Denotes a building, or a portion of a building in a multitenant building, or buildings on continuous property (except Railroad Right- of-way, etc.) not separated by a public highway.

Pricing Zone

Denotes a unit within a LATA or exchange established by the Telephone Company for rating certain Switched Transport Services, High Capacity Special Access Service and MegaLink Custom Service. Pricing zones are divided into three (3) categories: (1) high density, (2) medium density, and (3) low density categories.

(This page filed under Transmittal No. 3409 )

Issued: April 27, 2015 Effective: May 12, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 2-114.1 Cancels 9th Revised Page 2-114.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Program Audio Channel

Denotes a channel for the transmission of audio signals. The nominal bandwidths are from 50 to 15000 Hz, from 200 to 3500 Hz, from 100 to 5000 Hz or from 50 to 8000 Hz.

Protection

Denotes an arrangement, on a fiber optic facility, which provides a "backup" channel in the event service over the primary channel or channels is interrupted. The primary channel and the protection channel are normally common at the conduit level.

Protocol

Denotes the formal set of rules which govern the format, timing, sequencing and error control of exchanged messages on a data network. May also include the facilities for managing a communications link and/or contention resolution.

Query

Denotes a request for specific information generated by a computer processor and sent to an application, i.e., a data base, with a predefined set of possible responses.

Radio Common Carrier

Denotes carriers which are regulated under Part 22 of the F.C.C.'s Rules and Regulations who engage in the provision of public radio/mobile service.

Rating Point

Denotes a point used in calculating mileage for Special Access and Switched Access Services.

Recipient Switch (N) │ Denotes any end office switch that serves Directory Numbers (DN) within │ a number portable NXX that is not originally assigned to the switch. │ Customers assigned a Directory Number (DN) within the indicated NXX │ that is working out of a switch other than the one originally │ designated is said to have ported their number to this recipient │ switch. │ │ Regional Service Management System/Number Portability Administration │ Center (RSMS/NPAC) │ │ Denotes the third party administered database which maintains the information on all ported numbers in a particular geographic area, in this case the Telephone Company's region.

Reissued material is filed under authority of Special Permission No. 97-373 of the F.C.C.

(This page filed under Transmittal No. 2680 )

Issued: December 24, 1997 Effective: December 31, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 2-115 Cancels 11th Revised Page 2-115

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

(D)

(D) Registered Equipment

Denotes the customer's premises equipment (CPE) which complies with and has been approved within the Registration Provisions of Part 68 of the F.C.C.'s Rules and Regulations.

Release Message

Denotes an SS7 Message sent in either direction to indicate that a specific circuit is being released.

Remote Switching Modules (RSM) or Remote Switching Systems (RSS)

Denotes small, remotely controlled electronic end office switches which obtain their call processing capability from an electronic switching system type Host Office. The RSM/RSS cannot accommodate direct trunks to a customer.

Response

Denotes one response from a set of predefined possible responses to a request for information contained in a query from a computer processor.

Return Loss

Denotes a measure of the similarity between the two impedances at the junction of two transmission paths. The higher the return loss, the higher the similarity.

Riser Tail

Denotes a cable that terminates on a fiber termination shelf and has flammability and smoke characteristics which allow it to be routed in a central office area without being enclosed in a conduit.

Serial Input/Output

Denotes a type of data port which provides a higher throughput speed for either asynchronous or synchronous data transmissions.

Filed in compliance with FCC Orders DA 97-2358; FCC 97-158, as amended; FCC 97- 401; and FCC 97-403.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 2-116 Cancels 1st Revised Page 2-116

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Service Control Point (SCP)

Denotes a transaction processor based system that provides a network interface to various data base services. For 800 Number Portability Access Service, the SCP contains routing instructions for 800 service records that were downloaded from the SMS/800.

Service Management System/800 (SMS/800)

Denotes the main operations support system of 800 Number Portability Access Service used to create and maintain subscriber 800 call processing records.

Service Switching Point (SSP)

Denotes the switches in the telephone network that distinguishes dialed 800 calls from ordinary telephone calls and then communicates with SCPs for information on how the 800 calls should be routed.

Service Termination

Denotes the connection of Access Service at a customer premises, or a Centrex C.O.

Service User

Customer who has their service on a channel or port of a multiplexed (N) DS1, DS3 or SONET service belonging to a Host Subscriber through a Shared Network Arrangement.

Serving Wire Center (N)

Denotes the end office from which the customer designated premises would normally obtain dial tone from the Telephone Company for Local Exchange Service purposes.

Session

A session is the packet network equivalent of a call on the voice network and is the length of time required to maintain a virtual circuit. A session begins with call set-up and continues until the common control network facilities are released for reuse by the packet network.

Seven Digit Manual Test Line

Denotes an arrangement which allows the customer to select balance, milliwatt and synchronous test lines by manually dialing a seven digit number over the associated access connection. (N) Shared Network Arrangement

A service offering whereby a Service User may connect subtending services to a Host Subscriber’s multiplexed DS1, DS1 or SONET service, and the Telephone Company will undertake to maintain separate customer (N) records and billing.

(This page filed under Transmittal No. 3131 )

Issued: May 11, 2006 Effective: May 26, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-117 Cancels Original Page 2-117

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Shortage of Facilities or Equipment (M) │ Denotes a condition which occurs when the Telephone Company does not │ have appropriate cable, switching capacity, bridging, or multiplexing equipment, etc., necessary to provide the Access Service requested by the customer.

Short Circuit Test Line

Denotes an arrangement in an end office which provides for an ac short circuit termination of a trunk or line by means of a capacitor of at least four microfarads.

Signal-to-C-Notched Noise Ratio

Denotes the ratio in dB of a test signal to the corresponding C-Notched Noise.

Signaling Link (SL)

Denotes a specialized digital data link that provides interconnection/signaling paths between the various signal and processing nodes of the Common Channel Signaling network. Signaling Links may be routed directly between signaling points or indirectly via a Signal Transfer Point (STP).

Signaling Link Code (SLC)

Denotes a code that identifies a signaling link within the Common Channel Signaling/Signaling System 7 (CCS/SS7) link set.

Signaling Point (SP)

Denotes a node in the Common Channel Signaling network that originates and/or receives signaling messages.

Signaling System 7 (SS7)

Denotes the signaling protocol Version 7 used in the Common Channel Signaling network based on the American National Standards Institute (ANSI) standards.

Certain material appearing on this page formerly appeared on Original Page 2-116.

(This page filed under Transmittal No. 2264 )

Issued: March 1, 1993 Effective: May 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 2-118 Cancels 7th Revised Page 2-118

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Signaling Transfer Point (STP)

Denotes a packet switch in the Common Channel Signaling network that is used to route signaling messages between signaling nodes. STPs also transfer signaling messages to other CCS networks.

Singing Return Loss (SRL)

Denotes the frequency weighted measure of return loss at the edges of the voiceband (200 to 500 Hz and 2500 to 3200 Hz), where singing (instability) problems are most likely to occur.

SONET-based Interface

Denotes interfaces which are available only when transport facilities are provided via SONET equipment. This does not imply that all such interfaces are pure SONET interfaces.

Storage Area Network (SAN) (M)

Network which links host computers, storage servers, and systems. (M)

Subtending End Office of an Access Tandem

Denotes an end office that has final trunk group routing through the tandem.

Super Intermediate Multiplexing Hub

Denotes the conversion from higher to lower bit rate, or bandwidth, or from digital to voice grade channels, serving itself and/or subtending wire centers in an entire LATA, or one or more Numbering Plan Areas (NPAs).

Switching System

Denotes an assembly of equipment, hardware and/or software, utilized by the Telephone Company for establishing connections between lines and/or trunks. A Switching System may either be an end office or an access tandem.

Synchronous

Denotes the type of data transmission where the characters or bits are sent at a fixed rate, with the transmitting and receiving devices synchronized, so that start and stop bits are not required.

Synchronous Optical Network (SONET)

Denotes a set of international standards for the interconnectivity and interoperability of fiber optic based transmission systems.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-118.1 Cancels Original Page 2-118.1

(x)

(x)

(x) Issued under authority of Special Permission No. 11-003 of the FCC in order to withdraw material filed under Transmittal No. 3316 without its becoming effective and to restore currently effective material.

(This page filed under Transmittal No. 3319 )

Issued: March 17, 2011 Effective: March 18, 2011

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-119 Cancels 2nd Revised Page 2-119

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Synchronous Test Line

Denotes an arrangement in an end office which performs marginal operational tests of supervisory and ring-tripping functions.

Tandem-Switched Directory Transport Facility

Denotes a Directory Transport facility between a Telephone Company hub (C) office (when multiplexing occurs at an office other than the serving wire center) and a Directory Assistance location that provides a customer with transport to the DA location by routing through an access tandem.

Tandem-Switched Transport Facility

Denotes a Switched Transport facility between a Telephone Company hub (C) office (when multiplexing occurs at an office other than the serving wire center) and an end office that provides a customer with transport to or from the end office by routing through an access tandem.

Telecommunications Relay Service

Denotes a telephone transmission service that provides the ability for a hearing or speech disabled end user to engage in communication with a hearing individual in a manner that is functionally equivalent to the ability of an end user who does not have a hearing or speech disability to engage in communication with another hearing individual.

Telecommunications Relay Service includes services that enable two-way communication between an individual who uses a text telephone or other nonvoice terminal and an individual who does not use such a device.

Telegraph Grade Channel

Denotes a channel for the transmission of low speed binary signals at rates of 0 to 75 baud or 0 to 150 baud.

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 2-119.1 Cancels Original Page 2-119.1

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Terminating Direction

Denotes the use of Access Service for the completion of calls from an IC premises to an End User premises.

Terminus Bridging Hub

Denotes the connection of three or more customer designated premises to form a Special Access multipoint service within that bridging hub.

Terminus Multiplexing Hub

Denotes the conversion from higher to lower bit rate, or bandwidth, or from digital to voice grade channels, serving customers in that wire center only.

Text Telephone

Denotes a machine that employs graphic communication transmission of coded signals through wire or radio communications. (N)

Third Party Host

A customer who has a Shared Network Arrangement with a host (N) Subscriber, and allows a Cascading Service User to occupy a channel or port of the Third Party Host’s multiplexed service through a Cascading Shared Network Arrangement.

Throughput

Denotes the amount of information that can be moved through an access termination to and from a customer's premises during a specified time interval. Throughput is categorized as either high, medium or low -- depending upon the transmission speed.

(This page filed under Transmittal No. 3131 )

Issued: May 11, 2006 Effective: May 26, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 2-120 Cancels 3rd Revised Page 2-120

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Transmission Measuring (105 Type) Test Line/Responder

Denotes an arrangement in an end office which provides far-end access to a responder and permits two-way loss and noise measurements to be made on trunks from a near end office.

Transmission Path

Denotes an electrical path capable of transmitting signals within the range of the service offering. A voice grade transmission path is capable of transmitting voice frequencies within the approximate range of 300 to 3000 Hz. A transmission path is comprised of physical or derived channels consisting of any form or configuration of facilities typically used in the telecommunications industry.

Trunk

Denotes a communications path connecting two switching systems in a network used in the establishment of an end-to-end connection.

Trunk Group

Denotes a set of trunks which are traffic engineered as a unit for the establishment of connections between switching systems in which all of the communications paths are interchangeable.

Trunk Side Connection

Denotes the connection of a transmission path to the trunk side of a local exchange switching system.

Two-Point Service

Denotes the connection of two customer designated premises, either on a directly connected basis or through a hub where multiplexing or Network Reconfiguration Service functions are performed.

Two-Wire to Four-Wire Conversion

Denotes an arrangement which converts a four-wire transmission path to a two-wire transmission path to allow a four-wire facility to terminate in a two-wire facility.

Unbundled Network Elements (UNEs)(1) (Mx) Denotes the network elements the Telephone Company is required to provide on an unbundled basis pursuant to Section 251(c)(3) of the Communications Act of 1934, as amended.

(1) In the event the Commission or a court, pursuant to any regulatory or judicial review of the Commission’s Review of the Section 251 Unbundling Obligations of Incumbent Local Exchange Carriers, Report and Order and Order on Remand and Further Notice of Proposed Rulemaking, CC Docket No. 01- 338, FCC 03-36, para. 581 (released Aug. 21, 2003) (Triennial Review Order), vacates, stays, remands, reconsiders, or rejects the portion of the Triennial Review Order requiring ILECs to permit commingling, the terms and conditions of this tariff authorizing commingling, which are identified with a footnote, shall cease to be effective as of the effective date of the Commission order or the issuance of the court’s mandate. In that event, the Telephone Company will provide customers that have commingled UNE(s) and/or UNE Combination(s) with wholesale services obtained under this Tariff written notice that, within 30 days, customers must either convert such UNE(s) or UNE Combination(s) to a comparable service, or disconnect such UNE(s) and/or UNE Combination(s) from those wholesale services. Failure to provide the Telephone Company instructions to convert or disconnect such UNE(s) and/or UNE Combination(s) within 30 days, as described above, shall be deemed authorization to convert the UNE(s) and/or UNE Combination(s) to comparable access services at month-to-month rates.

Certain material appearing on this page previously appeared on 10th Revised Page 2-121. (x) Filed under the Authority of Special Permission No. 05-017 of the FCC. (Mx) (This page filed under Transmittal No. 3052 )

Issued: March 30, 2005 Effective: March 31, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 2-121 Cancels 10th Revised Page 2-121

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd) (Nx) Unicast Traffic

Ehternet frames forwarded from one station to another using the (Nx) individual address.

Uniform Service Order Code (USOC)

Denotes a three or five character alphabetic, numeric or an alphanumeric code that identifies a specific item of service or equipment. Uniform Service Order Codes are used in the Telephone Company billing system to generate recurring rates and nonrecurring charges. (Nx) Unknown Unicast Traffic

Ethernet frames that contain a destination address that has not been “learned” by the network equipment for an address with no dynamic filtering entry present. (Nx)

V and H Coordinates Method

Denotes a method of computing airline miles between two points by utilizing an established formula which is based on the vertical (V) and horizontal (H) coordinates of the two points.

Video Channel

Denotes a channel for the transmission of a standard 525 line/60 field monochrome or National Television Systems Committee color video signal and one or two associated 15 kHz audio signals. The bandwidth for a video channel is either 30 Hz to 4.5 MHz or 30 Hz to 6.6 MHz.

Virtual Collocation

Denotes a type of Expanded Interconnection that provides a transmission path between an interconnector's facility and certain Telephone Company-provided interstate Switched Access and Special Access Services. Virtual collocation includes central office basic transmission equipment designated by the interconnector and dedicated to its exclusive use but which is owned, installed and maintained by the Telephone Company. The Telephone Company maintains exclusive physical control over all equipment placed on its premises, however, the interconnector must perform remote monitoring and control functions on its designated equipment.

Virtual Network Interface

See Demarcation Point (for Expanded Interconnection).

Virtual Tributary (VT1.5)

A 1.728 Mbps signal channel within a SONET STS-1 signal channel. The VT1.5 signal consists of overhead and a Synchronous Payload Envelope (SPE). The overhead part of the signal is used for controlling, framing and maintaining the signal. The VT1.5 SPE is used to transport the customer’s service, which typically consists of a DS1 service signal.

Certain material previously appearing on this page now appears on 4th Revised Page 2-120. (x) Issued under the Authority of Special Permission No. 05-017 of the FCC.

(This page filed under Transmittal No. 3052 )

Issued: March 30, 2005 Effective: March 31, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 2-122 Cancels 4th Revised Page 2-122

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

Virtual Tributary (VT)

Denotes a Synchronous Optical Network (SONET) structure designed for the transport of sub-EC-1 signals which are less than 51.84 Mbps bandwidth. A (DS1) 1.544 Mbps signal is mapped into the SONET format using a VT 1.5 (1.728 Mbps) as a packaging mechanism that is internal to the SONET signal.

Voice Grade Channel

Denotes a channel for the transmission of analog signals within an approximate bandwidth of 300 to 3000 Hz.

WATS Access Line (WAL)

Denotes a dedicated connection between a customer designated premises and the WATS serving office.

WATS Serving Office

Denotes a telephone company designated End Office where switching, screening and/or recording functions are performed in connection with the closed-end of WATS Access Line Services.

Wide Area Network Physical Transport (WAN-PHY)

An Ethernet standard for wide area network transport at the physical layer, with a maximum bit rate of 9.953 Gbps.

(D)

(D) Wire Center

Denotes a building in which one or more central offices, used for the provision of Telephone Exchange Services, are located.

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 2-123 Cancels 2nd Revised Page 2-123

ACCESS SERVICE

2. General Regulations (Cont'd)

2.7 Definitions (Cont'd)

X.25 Protocol

Denotes the interface between user data terminal equipment and packet switching data circuit terminating equipment, as specified by the International Telephone and Telegraph Consultative Committee (CCITT) recommendation. (C) X.75 Protocol(1)

Denotes the terminal and transit call control procedures and data transfer system on circuits between packet switching networks.

800 Number Portability Access Service (NPAS)

Denotes a service that includes toll-free access services using the following dialing plans: 800, 888, 877, 866, 855, 844, 833 and 822. 800, as used throughout this tariff, includes all 800-type toll-free dialing plans.

800 Service Provider

Denotes the entity that offers 800 access services to 800 subscribers.

800 Subscriber

Denotes a customer that has arranged with an 800 Service Provider for 800 service and has been assigned an 800 number.

900 Access Service Screening Office

Denotes an end office or access tandem that performs the customer identification function required to provide 900 Access Service to all customers.

(1) As of October 6, 2004, MicroLink II service utilizing the X.75 protocol (N) is obsolete and limited to existing installations, at existing locations, (N) for existing customers. (N)

(This page filed under Transmittal No. 3008 )

Issued: September 21, 2004 Effective: October 6, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 3-1 Cancels 4th Revised Page 3-1

ACCESS SERVICE

Page

3. Carrier Common Line Access Service

3.1 General Description 3-2

3.2 Service Provisioning 3-3

3.3 Rate Regulations 3-4

3.3.1 Rate Elements 3-5 (A) Carrier Common Line (CCL) Access Charges 3-5 (B) Presubscribed Interexchange Carrier Charges (PICC) 3-5

3.3.2 CCL Usage Rates 3-6 (A) Premium Rate Application 3-6 (D) (B) Originating and Terminating Rate Application 3-8 3.3.3 PICC Monthly Rates 3-10.1

(A) Multiline Business 3-10.2

(B) Billing Cycle 3-10.3 (C) Jurisdictional Reporting 3-10.3

3.3.4 Determining Chargeable Access Minute 3-11 3.3.5 Adjustment for Resold MTS and MTS-Type Services 3-12 (A) Description 3-12 (B) Service Provisioning 3-13 (C) Application of Adjustment 3-14 (D) Apportionment of Originating and Terminating Resold MTS or MTS-Type Minutes 3-15 (E) Determining Adjusted Originating and Terminating Usage 3-16 (F) Report Requirements 3-17 3.3.6 Exceptions to Carrier Common Charges 3-19

3.4 Rates and Charges 3-20

3.4.1 Carrier Common Line Access Charges 3-20 (A) Premium 3-20 (D)

3.4.2 Presubscribed Interexchange Carrier Charges 3-20

(A) Multiline Business 3-20

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 3-2 Cancels 1st Revised Page 3-2

ACCESS SERVICE

3. Carrier Common Line Access Service

3.1 General Description

Carrier Common Line Access Service is utilized for the provision of interstate or foreign telecommunications services and allows access to the Telephone Company common line facilities furnished to end users.

The following diagrams depict generic views of the Switched Access

Service components, including Carrier Common Line Access Service, and the manner in which the components are combined to provide a complete Access Service.

- Common Line [described in 3.3.1] - Switched Transport [described in 6.5] - Local Switching [described in 6.8.1] (T)

(This page filed under Transmittal No. 2788 )

Issued: October 26, 1999 Effective: November 2, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 3-3

ACCESS SERVICE

(M) 3. Carrier Common Line Access Service (Cont'd) (T) 3.2 Service Provisioning │ │ (A) Where the customer is provided line side or trunk side Switched │ Access Service as specified in Section 6 (Switched Access │ Service), the Telephone Company will allow access to the │ Telephone Company common line facilities furnished to end users. │ (T) (B) The customer's facilities shall provide the necessary on-hook and (M) off-hook supervision. (T) (C) The following items are not provided as part of Carrier Common │ Line Access Service: │ │ - Telephone number │ - Detail billing │ - Directory listings - Intercept arrangements

Certain revised material appearing on this page formerly appeared on 6th Revised Page 90 and 3rd Revised Page 90.1 of Tariff F.C.C. No. 68.

Material and certain revised material appearing on this page formerly appeared on 1st Revised Page 90.2 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 3-4 Cancels 3rd Revised Page 3-4

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations

This section contains the specific regulations governing the rates and charges which apply for Carrier Common Line Access Service. There are two types of Carrier Common Line Access Service rate elements: Carrier Common Line Access Charges and Multiline Business Presubscribed Interexchange Carrier Charges (PICCs).

Generally, all Switched Access Service provided to a customer is subject to Carrier Common Line Access Charges. Exceptions are set forth in 3.3.6. (Exceptions to Carrier Common Line Charges).

Rates and charges for Carrier Common Line Access depend generally on its use by the customer, i.e., the feature group or BSA, whether the (D) usage is originating or terminating and the type of service (e.g., MTS/WATS or MTS/WATS-type services, 700, 800 or 900 and other service types).

Rates and charges for Multiline Business PICC are assessed on multiline business.

The specific rates and charges are set forth in 3.4 (Rates and Charges). Jurisdictional Report Requirements are set forth in 2.4 (Jurisdictional Reports). Ordering, rating and billing procedures as specified in 2.6 (Jointly Provided Access Service) will apply for access services where more than one exchange telephone company is involved.

To the extent a customer is reselling another carrier's MTS or MTS-type service on which the Carrier Common Line and Switched Access Charges have been assessed, Carrier Common Line Charges will be adjusted as set forth in 3.3.5 (Adjustment for Resold MTS and MTS-Type Services).

When access to the local exchange is required to provide a customer service (e.g., MTS-type, WATS-type, telex, Data, etc.) that uses a resold private line service, rates and regulations as set forth in Section 6 (Switched Access Service) and Carrier Common Line rates and regulations will apply except when such access to the local exchange is required for the provision of an enhanced service.

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 3-5 Cancels 4th Revised Page 3-5

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.1 Rate Elements

(A) Carrier Common Line Access Charges

The Carrier Common Line rate category provides for the Telephone Company common line facilities between the customer's end user and the end user's end office.

(B) Presubscribed Interexchange Carrier Charges (PICC)

The Multiline Business PICC rate category provides for the recovery of the common line costs not recovered by the End User Common Line Charge.

When a Service Provider is provided local business exchange service or coin line service, the Multiline Business PICC rate will not apply.

(This page filed under Transmittal No. 2978 )

Issued: December 17, 2003 Effective: January 1, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 3-6 Cancels 6th Revised Page 3-6

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.2 CCL Usage Rates

Usage rates for each line or trunk are rates that apply on a per unit basis, e.g. per minute of use, when a specific rate element is used. Usage charges are accumulated over a monthly period.

(A) Premium Rate Application

Carrier Common Line rates are applied as premium rates.

(1) Premium rates apply to:

(a) FGA and BSA-A access minutes. (D)

(b) FGB and BSA-B access minutes. (D)

(c) FGD and BSA-D access minutes.

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 3-7 Cancels 3rd Revised Page 3-7

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.2 CCL Usage Rates (Cont'd)

(A) Premium Rate Application (Cont'd)

(D)

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 3-8 Cancels 3rd Revised Page 3-8

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.2 CCL Usage Rates (Cont'd)

(B) Originating and Terminating Rate Application

Carrier Common Line rates are applied based upon whether (D) the minutes are classified as originating or terminating. Originating calling permits the delivery of calls from Telephone Exchange Service locations to the customer's premises. Terminating calling permits the delivery of calls from the customer's premises to Telephone Exchange Service locations.

(1) Originating rates apply to:

- originating access minutes of use (excluding those to which terminating rates apply, as specified in Section 3.3.2(B)(2)); (T)

- originating 700, 800, 900 and ACIS access minutes of use which are reported as minutes that terminate over a Switched Access Service that is assessed terminating Carrier Common Line. Such originating minutes must be reported as specified in Section 3.3.2(B)(3). (C)

(2) Terminating rates apply to:

- terminating access minutes of use;

- FGA and BSA-A FX/ONAL originating access minutes of use;

- originating 700, 800, 900 and ACIS access minutes of use for calls on which Carrier Common Line are not billed on the terminating end.

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 3-9 Cancels 3rd Revised Page 3-9

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.2 CCL Usage Rates (Cont’d) (D)

(B) Originating and Terminating Rate Application (Cont'd)

(3) Percent Common Line Report

Customers must provide the Telephone Company with a Percent Common Line (PCL) Report for originating interstate 700, 800, 900 and ACIS traffic to identify the percentage of common line terminated traffic. When the customer makes this report available to the Telephone Company in advance of billing, these minutes of use will be charged on the current bill as originating minutes of use.

(a) Report Data

The PCL report will identify the percentage of common line terminated traffic (i.e., minutes that terminate in a Switched Access Service that is assessed Carrier Common Line rates as (D) specified in 3.4), by feature group, of originating 700, 800, 900 and ACIS access minutes for each LATA from which the customer originates 700, 800, 900 or ACIS traffic.

(b) Quarterly Updates

The customer will be required to update the PCL report effective on the first of January, April, July and October of each year. The revised PCL report will provide the common line terminated percentage of use for the most recent three months for which data is available. The revised PCL report must be received no later than 15 business days after the first of each month specified above.

(This page filed under Transmittal No. 2831 )

Issued: June 16, 2000 Effective: July 1, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 3-10 Cancels 3rd Revised Page 3-10

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.2 CCL Usage Rates (Cont'd) (D)

(B) Originating and Terminating Rate Application (Cont'd)

(3) Percent Common Line Report (Cont'd)

(b) Quarterly Updates (Cont'd)

When a customer does not supply a quarterly updated PCL report, the Telephone Company will assume the percentages to be the same as those provided in the last quarterly report. If the initial PCL is not received from the customer, the Telephone Company will apply the terminating Carrier Common Line, rates as specified in 3.4 to (D) all originating 700, 800, 900 and ACIS access minutes.

If a billing dispute arises concerning the PCL report, the Telephone Company may request the customer to provide the data the customer used to develop the report. The Telephone Company will not request such data more than once per year. The customer shall supply the data within 30 days of the Telephone Company request.

(c) Application of Credit

The quarterly PCL revision will serve as the basis for the next three month's billing and will be effective on the bill date for that service. When the customer makes this report available in advance of billing, these minutes will be charged on the current bill as originating minutes of use as specified in 3.3.2(B). No prorating or backbilling will be done based on the PCL.

(d) Verification Provisions

The PCL data provided by the customer is subject to the verification provisions specified in 2.4.1(D) (Report Verification).

(This page filed under Transmittal No. 2831 )

Issued: June 16, 2000 Effective: July 1, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 3-10.1 Cancels 1st Revised Page 3-10.1

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.3 PICC Monthly Rates

The Multiline Business PICC is billed on a per month basis to the (T) interexchange carrier to whom an end user's Multiline Business (N) access line is presubscribed. In the event an end user does not have a presubscribed interexchange carrier, the PICC is assessed directly to the end user or a local service provider that resells services of the Telephone Company as set forth in 4.3 following.

(D)

(This page filed under Transmittal No. 2831 )

Issued: June 16, 2000 Effective: July 1, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 3-10.2 Cancels 1st Revised Page 3-10.2

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.3 PICC Monthly Rates (Cont'd)

(D)

(D)

(A) Multiline Business (T)

When an end user is provided more than one local business exchange service in a state by the same Telephone Company or when local exchange service is provided for use with payphone service, the Multiline Business individual line charge applies to each such local exchange service.

When a local exchange service is provided as a multiparty service under the general or local exchange service tariffs, each party is deemed to be a user of a EUCL and the Multiline Business charge applies to each such party.

When local exchange service is provided as Primary Rate Interface (PRI) integrated services digital network (ISDN) service, five Multiline Business individual line charges apply to each such local exchange service.

When a local exchange service is provided as Centrex or Centrex-CO like service, one-ninth of the Multiline Business individual line charge applies to each Centrex line unless the Centrex service has less than nine lines, in which case the full Multiline Business line charge will apply to the entire Centrex service.

(This page filed under Transmittal No. 2831 )

Issued: June 16, 2000 Effective: July 1, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 3-10.3 Cancels Original Page 3-10.3

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.3 PICC Monthly Rates (Cont'd)

(B) Billing Cycle (T)

The Multiline Business PICC will be based on a monthly (C) snapshot of the end user (or a local service provider that resells service of the Telephone Company (herein referred to as end user)) accounts. For Multiline Business end (C) users who have not chosen a presubscribed interexchange carrier, the Telephone Company shall collect the PICC directly from the Multiline Business end user. The PICC (C) will be applied to these Multiline Business end users (C) accounts based on the status of the presubscribed interexchange carrier information at the time of the Multiline Business end user's billing period. The full (C) PICC will be assessed for each billing cycle.

(C) Jurisdictional Reporting (T)

The PICC will be billed 100% to the interstate jurisdiction. Charges will not be prorated between the intrastate and interstate jurisdiction.

(D)

(D)

(This page filed under Transmittal No. 2831 )

Issued: June 16, 2000 Effective: July 1, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 3-11 Cancels 1st Revised Page 3-11

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.4 Determining Chargeable Access Minutes

Chargeable access minutes are developed by the Telephone Company based upon recordings of customer traffic to end office or access tandem switches where recording capabilities exist. If such recordings are unavailable, the Telephone Company develops chargeable access minutes through the use of assumed, factored or imputed minutes. The regulations for determining the chargeable access minutes for Carrier Common Line Access Service are the same as those for Switched Access Service and are specified in 6.7.4 (Determining Chargeable Access Minutes).

Where appropriate, the chargeable Carrier Common Line access (D) minutes are then adjusted as described in 3.3.5 (Adjustment for Resold MTS and MTS-type Services).

(This page filed under Transmittal No. 2831 )

Issued: June 16, 2000 Effective: July 1, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 3-12 Cancels 1st Revised Page 3-12

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.5 Adjustment for Resold MTS and MTS-Type Services

(A) Description

A customer may resell the MTS or MTS-type service of a carrier, i.e., where the underlying carrier has been assessed Carrier Common Line and Switched Access charges (D) for the usage. When the customer resells such MTS or MTS- type service, the customer may utilize a FGA, FGB, FGD, BSA-A, BSA-B or BSA-D Switched Access Service to originate and/or terminate the resold usage in the local exchange.

(This page filed under Transmittal No. 2831 )

Issued: June 16, 2000 Effective: July 1, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 3-13 Cancels Original Page 3-13

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.5 Adjustment for Resold MTS and MTS-Type Services (Cont'd) (T)

(B) Service Provisioning

Each of the access group or BSA arrangements used by the customer in the provision of resold service must be connected either directly or indirectly to the customer designated premises at which the resold MTS or MTS-type service is terminated.

(1) Direct Connections are those arrangements where the access group or BSA and the resold MTS or MTS-type services are terminated at the same customer designated premises, regardless of whether or not the resold MTS or MTS-type service is originating or terminating.

(2) Indirect Connections are those arrangements where the access group or BSA and the resold MTS or MTS-type services are physically located at different customer designated premises in the same exchange.

- Indirect outward (originating) connections are those arrangements where the access groups or BSAs and the resold outward MTS and/or MTS-type services are terminated at different customer designated premises in the same exchange. Such different customer designated premises are connected by facilities that permit a call to flow from access groups or BSAs to resold MTS and MTS-type services.

- Indirect inward (terminating) connections are those arrangements where the access groups or BSAs and resold inward MTS and/or MTS-type services are terminated at different customer designated premises in the same exchange. Such different customer designated premises are connected by facilities that permit a call to flow from resold inward MTS and/or MTS-type services to access groups or BSAs.

Filed in compliance with FCC Orders DA 97-2358; FCC 97-158, as amended; FCC 97- 401; and FCC 97-403.

(This page filed under Transmittal No. 2678 )

Issued: December 17, 1997 Effective: January 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 3-14 Cancels 2nd Revised Page 3-14

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.5 Adjustment for Resold MTS and MTS-Type Services (Cont'd)

(C) Application of Adjustment

When the customer utilizes an access group or BSA arrangement for resale purposes, whether single lines, trunks, multiline hunt groups or trunk groups, the resold usage will be assessed Carrier Common Charges unless the (D) customer provides the required documentation to identify the resold usage, as specified in 3.3.5(F) (Report Requirements). When the customer provides the documentation, the Telephone Company will adjust the Carrier Common Line assessed to the customer. (D)

In order for the adjustment to apply to the resold usage, the access groups or BSAs and the resold MTS or MTS-type services must be provided in the same state (except when the same extended area service arrangement is provided in two different states by the same Telephone Company) in the same exchange, provided by the same telephone company and connected directly or indirectly as specified in 3.3.5(B) preceding. For those exchanges that encompass more than one state, the customer shall report the information by state within the exchange.

The adjustment for resold MTS and MTS-type service shall apply only to the extent a customer is reselling another carriers MTS or MTS-type service on which Carrier Common Line and Switched Access charges have been assessed. The (D) adjustment will be computed separately for each access group or BSA as described following. In no event shall the adjusted access minutes be less than zero.

(This page filed under Transmittal No. 2831 )

Issued: June 16, 2000 Effective: July 1, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 3-15 Cancels Original Page 3-15

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.5 Adjustment for Resold MTS and MTS-type Services (Cont'd) (T)

(D) Apportionment of Originating and Terminating Resold MTS or MTS-Type Minutes

When a customer has more than one access group or BSA in a LATA which is utilized for the resale of MTS or MTS-type services, the resold minutes of use are apportioned among the access groups or BSAs in the LATA as specified following. The originating and terminating access minutes are then adjusted as set forth in (E) following based upon the apportionment of the resold minutes of use.

(1) Apportionment of Originating Usage

The Telephone Company will apportion the resold originating minutes of use among the originating access groups or BSAs. Such apportionment is based on the relationship of the originating usage for each access group or BSA to the total originating usage for all access groups or BSAs in the LATA. Resold originating MTS and MTS-type service minutes will not include collect, third number, credit card or intrastate minutes of use.

(2) Apportionment of Terminating Usage

The Telephone Company will apportion the resold terminating minutes of use among the terminating access groups or BSAs. Such apportionment is based on the relationship of the terminating usage for each access group or BSA to the total terminating usage for all access groups or BSAs in the LATA. Resold terminating MTS and MTS-type service minutes will include collect call, third number call and credit card call minutes of use and will exclude intrastate minutes of use.

Filed in compliance with FCC Orders DA 97-2358; FCC 97-158, as amended; FCC 97- 401; and FCC 97-403.

(This page filed under Transmittal No. 2678 )

Issued: December 17, 1997 Effective: January 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 3-16 Cancels 2nd Revised Page 3-16

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.5 Adjustment for Resold MTS and MTS-type Services (Cont'd)

(E) Determining Adjusted Originating and Terminating Usage

The minutes to be billed Carrier Common Charges will be the adjusted originating access minutes and the adjusted terminating access minutes for each access group or BSA. The adjusted originating and terminating access minutes will be computed separately for each access group or BSA as specified following. Neither the adjusted originating nor (T) terminating access minutes can be less than zero. The adjusted originating and terminating access minutes are billed as premium minutes of use as specified in 3.3.2(A) (D) (Premium Rate Application). (D)

(1) Adjustment of Originating Minutes

The Telephone Company will determine the adjusted originating minutes of use by subtracting the apportioned resold originating MTS or MTS-type service minutes of use from the originating access minutes of use.

(2) Adjustment of Terminating Minutes

The Telephone Company will determine the adjusted terminating minutes of use by subtracting the apportioned resold terminating MTS or MTS-type service minutes of use from the terminating access minutes of use.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 3-17 Cancels 1st Revised Page 3-17

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.5 Adjustment for Resold MTS and MTS-Type Services (Cont'd)

(F) Report Requirements

(1) Report Data

Customers reselling MTS or MTS-type service must provide the Telephone Company with documentation which identifies the resold MTS or MTS-type service to allow proper Carrier Common Line rate application. The (D) documentation must be furnished by the provider of the MTS service or the customer. When the MTS or MTS-type usage is shown in hours, the number of hours shall be multiplied by 60 to develop the associated MTS or MTS- type minutes of use. If the MTS or MTS-type usage is shown in a unit other than hours or minutes, the customer shall provide a factor to convert the shown units to minutes.

(2) Monthly Updates

The documentation must be provided to the Telephone Company on a monthly basis. The monthly period used to determine the minutes of use for the resold services shall be the most recent monthly period for which the customer has received a bill for the resold services. The revised documentation must be received no later than 15 days after the bill date shown on the resold MTS or MTS-type service bill.

If the required documentation is not received from the customer, the Telephone Company will use the previously reported information for the next two months. For any subsequent month, no allocation or credit will be made until the required documentation is delivered to the Telephone Company by the customer.

(This page filed under Transmittal No. 2831 )

Issued: June 16, 2000 Effective: July 1, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 3-18 Cancels Original Page 3-18

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.5 Adjustment for Resold MTS and MTS-Type Services (Cont'd) (T)

(F) Report Requirements (Cont'd)

(3) Application of Credit

The adjustment will be made to the customer's bill no later than the next bill date or the next subsequent bill date, depending on when the usage report is received by the Telephone Company.

(4) Verification Provisions

The Telephone Company may request, from either the customer or the provider of the MTS or MTS-type service, certified copies of the resold MTS or MTS- type usage billed to the customer. Requests by the Telephone Company for historic billing data may not exceed a 12 month period from the current bill period.

Filed in compliance with FCC Orders DA 97-2358; FCC 97-158, as amended; FCC 97- 401; and FCC 97-403.

(This page filed under Transmittal No. 2678 )

Issued: December 17, 1997 Effective: January 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 3-19 Cancels 5th Revised Page 3-19

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.3 Rate Regulations (Cont'd)

3.3.6 Exceptions to Carrier Common Line Charges

(A) Carrier Common Line Access Service is not available with the DNAL BSA.

(B) Originating outward WATS and WATS-type minutes of use and terminating inward WATS and WATS-type minutes of use shall not be assessed Carrier Common Line Charges when the Switched Access Service is connected with a WATS Access Line, as specified in 7.2.11 (WATS Access Line), at Telephone Company designated WATS Serving offices. (D) (D) (D) (D) (D)

(C) In lieu of Carrier Common Line Charges, Special Access Services are subject to the Special Access surcharge as specified in 7.2.5 (Surcharge for Special Access Service).

(D) When the Telephone Company provides Switched Access service to a customer to originate traffic from or terminate traffic to a Mobile End Office Connection or a Mobile Access Tandem Connection and Telephone Company common lines are not used, Carrier Common Line Charges will not apply.

(E) When Telephone Company common line facilities are not used to originate traffic from a Telecommunications Relay Interconnection Service, Carrier Common Line Charges will not apply.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 42nd Revised Page 3-20 Cancels 41st Revised Page 3-20

ACCESS SERVICE

3. Carrier Common Line Access Service (Cont'd)

3.4 Rates and Charges

All rates and charges contained in this section are applicable to Arkansas, Kansas, Missouri, Oklahoma, and Texas.

3.4.1 Carrier Common Line Access Charges

Rate per Access (A) Premium Minute

- Originating ...... $0.000000 - Terminating ...... $0.000000

(D)

(D) (D)

3.4.2 Presubscribed Interexchange Carrier Charges

Rate Per USOC Month

(A) Multiline Business XXXX $0.00

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver (and including, but not limited to, any Application for Review of the letter from Lawrence E. Strickling, Chief, Common Carrier Bureau, FCC, to Dale Robertson, SBC, dated May 18, 1999 which may be filed with the Commission), or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 4-1 Cancels 4th Revised Page 4-1

ACCESS SERVICE

Page No.

4. END USER ACCESS SERVICE 4-1

4.1 General Description 4-2

4.2 Service Provisioning 4-2

4.3 Rate Regulations 4-3

4.3.1 End User Common Line Rate Elements 4-3 (A) Primary Residential 4-3 (B) Non-Primary Residential 4-3 (C) Business 4-4 (D) Multiline Business 4-4 (E) Centrex CO and CO-like 4-5 (F) End User Port Charge 4-5 (G) Access Recovery Charge (ARC) 4-5.1 (N) 4.3.2 Federal Universal Service Fund (FUSF) Surcharge 4-5.2 (T) (A) Residential (B) Business 4.3.3 Minimum Period 4-6 4.3.4 Cancellation of Application 4-6 4.3.5 Changes to Orders 4-6 4.3.6 Allowance for Interruptions 4-6 4.3.7 Temporary Suspension of Service 4-6 4.3.8 Exceptions to End User Common Line and Federal Universal Service Fund (FUSF)Surcharge 4-7 (A) Remote Call Forwarding Service 4-7 (B) Radio Common Carriers 4-7

4.4 Rates and Charges 4-8

(A) End User Common Line-Primary Residential 4-8 (B) End User Common Line-Non-Primary Residential 4-8.1 (C) End User Common Line-Business 4-9 (D) End User Common Line-Multiline Business 4-10 (E) End User Common Line-Centrex CO and CO-like 4-12 (N) (F) Access Recovery Charge (ARC) 4-12.1 (T) (G) End User Port Charge 4-13 (T) (H) Federal Universal Service Fund (FUSF) Surcharge 4-13 (1) Arkansas 4-13 (2) Kansas 4-13 (3) Missouri 4-14 (4) Oklahoma 4-14 (5) Texas 4-14

(This page filed under Transmittal No. 3345 )

Issued: June 18, 2012 Effective: July 3, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 4-2 Cancels 5th Revised Page 4-2

ACCESS SERVICE

4. End User Access Service

4.1 General Description

End User Access Service provides for the use of an End User Common Line (EUCL) by an end user and may include EUCL Charges, Access Recovery (C) Charges (ARCs), Federal Universal Service Fund (FUSF) Surcharges, End (C) User Port Charges and Multiline Business Presubscribed Interexchange Carrier Charges (PICCs). The Telephone Company will provide End User

Access Service to end users who obtain local exchange service from the Telephone Company under its general or local exchange tariffs.

4.2 Service Provisioning

Use of an EUCL by an end user will be provided when the end user obtains local exchange service.

The Telephone Company will be responsible for contacts and arrangements

with customers for the billing of End User Access Service charges.

The following items are not provided as part of End User Access Service:

- Telephone number - Detail billing - Directory listings - Intercept arrangements

When changes are made to orders for local exchange service associated with End User Access Service, any necessary changes will be made for the End User Access Service.

(This page filed under Transmittal No. 3345 )

Issued: June 18, 2012 Effective: July 3, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 4-3 Cancels 12th Revised Page 4-3

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.3 Rate Regulations

This section contains the specific regulations governing the rates and charges which apply for End User Access Service. The EUCL Charge is billed on a per month basis to the end user customer of the Telephone Company or a local service provider that resells services of the Telephone Company (herein referred to as end user) for the associated local exchange service based upon the local exchange service types set forth in 4.3.1 following.

The ARC is a monthly charge billed to residential, single line (N) business, and multiline business Customers. This charge is combined (N) with and reflected within the EUCL charge on the Customer’s bill. (N)

The PICC is billed on a per month basis to a Multiline Business end user when the end user's access line has not been presubscribed to an interexchange carrier. In the event a Multiline Business end user has presubscribed to an interexchange carrier, the PICC is assessed to the interexchange carrier to whom the Multiline Business end user's access line is presubscribed. These rates and charges apply as set forth in 3.3.3 preceding.

The End User Port Charge is billed on a per month basis to an end user for each such local exchange service line port.

Federal Universal Service Fund (FUSF) Surcharges are billed on a per month and/or on a per occurrence basis to the end user customer of the Telephone Company for the associated local exchange service based on local exchange services set forth below, unless otherwise noted. Local (T) service providers that resell services of the Telephone Company are exempt from FUSF Surcharges.

Specific rates and charges for EUCL Charges, FUSF Surcharges, and End User Port Charges are set forth in 4.4 (Rates and Charges) following.

(This page filed under Transmittal No. 3345 )

Issued: June 18, 2012 Effective: July 3, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 4-3.1 Cancels 1st Revised Page 4-3.1

4. End User Access Service (Cont'd)

4.3 Rate Regulations (Cont’d)

4.3.1 End User Common Line Rate Elements

(A) Primary Residential

For each local exchange service provided as residential service under the general or local exchange service tariffs, the End User Common Line-Primary Residential charge applies to one line at a service location.

When an end user is provided a local residence exchange service by the Telephone Company, the End User Common Line-Primary Residential rate shall be exempt for (C) qualifying low income subscribers meeting low income eligibility criteria established by their respective state commissions.

- Lifeline Service subscribers in the State of Arkansas - Lifeline Service subscribers in the State of Kansas - Lifeline Service subscribers in the State of Missouri - Lifeline Service subscribers in the State of Oklahoma - Tel-Assistance Service Subscribers in the State of Texas - Lifeline Service subscribers in the State of Texas

(This page filed under Transmittal No. 3343 )

Issued: May 17, 2012 Effective: June 1, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 4-4 Cancels 5th Revised Page 4-4

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.3 Rate Regulations (Cont'd)

4.3.1 End User Common Line Rate Elements (Cont'd)

(B) Non-Primary Residential and BRI ISDN

For each local exchange service provided at the same service location as primary residential service, the End User Common Line-Non-Primary Residential charge applies to each additional line.

(D)

When local exchange service is provided as Basic Rate Interface (BRI) integrated services digital network (ISDN) (D) service, one End User Common Line-Non-Primary Residential charge shall apply to each such local exchange service.

(C) Business

For each local exchange service provided as business service under the general or local exchange service tariffs when an end user is provided one local exchange service in a state by the same Telephone Company, the End User Common Line- Business charge applies to each line.

(D)

(D) Multiline Business and PRI ISDN

When an end user is provided more than one local business exchange service in a state by the same Telephone Company or (D) when local exchange service is provided for use with (T) payphone service, the End User Common Line-Multiline Business individual line or trunk charge applies to each such local exchange service.

(D) When local exchange service is provided as Primary Rate Interface (PRI) integrated services digital network (ISDN) service, five End User Common Line-Multiline Business individual line or trunk charges apply to each such local exchange service. (D)

(This page filed under Transmittal No. 3169 )

Issued: October 17, 2006 Effective: November 1, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 4-5 Cancels 1st Revised Page 4-5

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.3 Rate Regulations (Cont'd)

4.3.1 End User Common Line Rate Elements (Cont'd)

(E) Centrex CO and CO-like

For business Centrex CO and Centrex CO-like service lines installed or on order prior to July 28, 1983, the End User Common Line - Centrex CO charge as set forth in 4.4(E) (T) following applies to each line. For such lines installed on (T) or after July 28, 1983, the End User Common Line - Multiline Business charge as set forth in 4.4(D) following applies to (T) each line.

Centrex CO is a service that:

(1) uses a portion of a Telephone Company switch located at the Telephone Company central office to meet the customer's internal needs and serves as the customer's interface with the local and interexchange networks, and (2) links the customer's main stations to the Telephone Company switch with subscriber loops.

Centrex CO-like services are services (e.g., ESSEX, Centron, Centraflex, Airport Service, Hotel-Motel Service) that operate in a manner that is the same as Centrex CO and

(1) are provided using switches located at Telephone Company central offices, and (2) link customer main stations to the Telephone Company switch with subscriber loops.

Centrex Dormitory (residential) Service is a service to a college, university or school that serves both the university, college or school offices and the students or faculty dormitory (residential) quarters. The End User Common Line-Primary Residential and Non-Primary Residential charges will apply to the student or faculty dormitory (residential) quarters. The End User Common Line-Multiline Business charge will apply to the university, college or school offices. Charges shall be based on the number of office lines reported to the Telephone Company by the customer.

(This page filed under Transmittal No. 2913 )

Issued: September 16, 2002 Effective: October 1, 2002

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 4-5.1 Cancels 4th Revised Page 4-5.1

ACCESS SERVICE 4. End User Access Service (Cont'd)

4.3 Rate Regulations (Cont'd)

4.3.1 End User Common Line Rate Elements (Cont'd)

(F) End User Port Charge

When local exchange service is provided using line ports for non-basic analog services such as ISDN, the applicable End User Port charge will apply to each such local exchange service.

(1) BRI ISDN Port

The BRI ISDN Port provides BRI 2B+D features. All terminations are 2-wire and dial tone signaling is provided via the "D" channel.

(2) PRI ISDN Port

The PRI ISDN Port provides 23B+1D or 24B channels. Both line and trunk features are available via the DS1 interface.

(G) Access Recovery Charge (ARC) (N)

(1) Residential ARC

Both Primary and Non-Primary Residential subscriber lines will be charged the Residential ARC as set forth in 4.4(F).

Lifeline Customers are exempt from the Residential ARC.

(2) Single Line Business ARC

Single Line Business Customers will be charged the Single Line Business ARC as set forth in 4.4(F).

(3) Multi-Line Business ARC

Multiline Business and Centrex lines will be charged the Multiline Business ARC as set forth in 4.4(F). PRI Customers will be charged the ISDN-PRI ARC as set forth in 4.4(F). (N)

(This page filed under Transmittal No. 3345 )

Issued: June 18, 2012 Effective: July 3, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 4-5.2 Cancels 2nd Revised Page 4-5.2

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.3 Rate Regulations (Cont'd)

4.3.2 Federal Universal Service Fund (FUSF) Surcharge

The Federal Universal Service Fund (FUSF) Surcharge recovers the Telephone Company’s contributions to the Universal Service Support Mechanisms. Customers may certify exemption from FUSF Surcharges at the ACNA level, BAN level or circuit level. Certification at the ACNA level will exempt all BANs under that ACNA. Certification at the BAN level will exempt only the specified BANs. A customer must annually certify exemption from FUSF Surcharges.

(A) Basic Residential/Single Line Business (SLB) /ISDN BRI

For each local exchange service as described in Sections 4.3.1(A), 4.3.1 (B) and 4.3.1(C) preceding under the general or local exchange service tariffs, a Basic Residential/SLB FUSF Surcharge applies to each line as set forth in Section 4.4(H), following. Lifeline customers as (T) set forth in Section 4.3.1(A), preceding, are exempt from (T) the Basic FUSF Surcharge.

For each local exchange service as described in Section 4.3.1(B)preceding under the general or local exchange service tariffs, a Basic BRI ISDN FUSF Surcharge applies to each line as set forth in Section 4.4(H), following. (T)

(B) Basic Multiline Business / PBX Trunks / PRI ISDN / Centrex

Multi-line Business For each local exchange service as described in Section 4.3.1 (D) preceding under the general or local exchange service tariffs, a Basic Multiline Business FUSF Surcharge applies to each line as set forth in Section 4.4(H), (T) following, unless otherwise noted below.

PBX Multi-line Business customers with PBX trunks will be assessed a Basic PBX FUSF Surcharge as set forth in Section 4.4(H), following. (T)

PRI ISDN When local exchange service is provided as Primary Rate Interface (PRI) ISDN service, a Basic PRI ISDN FUSF Surcharge shall apply to each such local exchange service as set forth in Section 4.4(H), following. (T)

Centrex When a local exchange service is provided as Centrex or Centrex CO-like service as defined in Section 4.3.1 (E) preceding, a Basic Centrex Business FUSF Surcharge applies to each Centrex line as set forth in Section 4.4(H), (T) following.

(This page filed under Transmittal No. 3345 )

Issued: June 18, 2012 Effective: July 3, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 51st Revised Page 4-5.3 Cancels 50th Revised Page 4-5.3

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.3 Rate Regulations (Cont'd)

4.3.2 Federal Universal Service Fund (FUSF) Surcharge (Cont’d)

(C) End User Port FUSF Surcharges

When a customer is assessed the BRI ISDN Port line charge as discussed in Section 4.3.1(F)(1), preceding, a FUSF Surcharge will also be assessed to recover the FUSF Surcharge obligation associated with each interstate end user charge as set forth in Section 4.4(H), following.

(D) Other Non-recurring FUSF Surcharges

In addition to the basic FUSF Surcharges, when a customer is assessed an Easy Access Dialing Change Charge, a FUSF Surcharge will also apply as set forth in Section 4.4(G).

Contribution Factor: 0.174 (R)

To the extent an IC is assessed the Easy Access Dialing Change Charge, the Non-recurring FUSF Surcharge will also apply to the IC.

(This page filed under Transmittal No. 3434 )

Issued: September 16, 2016 Effective: October 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 62nd Revised Page 4-6 Cancels 61st Revised Page 4-6

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.3 Rate Regulations (Cont'd)

4.3.2 Federal Universal Service Fund (FUSF) Surcharge (Cont’d)

(E) Other FUSF Surcharges

A percentage surcharge factor is assessed monthly on billed recurring and non-recurring charges of end user services other than surcharges described in Section 4.

FUSF Surcharge factor: 0.174 (R)

4.3.3 Minimum Period

The minimum period for which End User Access Service is provided to an end user and for which charges are applicable is the same as that in the general or local exchange tariffs for the associated local exchange service.

4.3.4 Cancellation of Application

End User Access Service is cancelled when the order for the associated local telephone exchange service is cancelled. No cancellation charges apply.

4.3.5 Changes to Orders

When changes are made to orders for the associated local exchange service, any necessary changes will be made for the End User Access Service. No charges will apply.

4.3.6 Allowance for Interruptions

When there is an interruption to an End User Access Service, requested end user access credit allowances for interruptions will be provided as set forth in 2.5.6 (Credit Allowance for Service Interruption) and 2.5.7 (Service Assurance Warranty Schedule).

4.3.7 Temporary Suspension of Service

When an end user temporarily suspends its local exchange service which is associated with End User Access Service, one-half of the End User Common Line and FUSF Surcharge per month charges will be temporarily suspended for the time period the local exchange service is suspended.

(This page filed under Transmittal No. 3434 )

Issued: September 16, 2016 Effective: October 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 4-7 Cancels 1st Revised Page 4-7

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.3 Rate Regulations (Cont'd)

4.3.8 Exceptions to End User Common Line and Federal Universal Service Fund (FUSF) Surcharge (T)

(A) Remote Call Forwarding Service

For each local exchange service provided as Remote Call Forwarding (i.e., Telebranch) residential or business service, under the general or local exchange service tariffs, End User Common Line and the Federal Universal Service Fund (FUSF) Surcharges do not apply. (T)

(B) Radio Common Carriers

For each local exchange service, other than local exchange service used for administrative purposes, provided to Radio Common Carriers or Cellular Mobile Carriers under the general or local exchange service tariffs, End User Common Line and Federal Universal Service Fund (FUSF) Surcharges do not apply. In addition, (T) the End User Common Line and Federal Universal Service (T) Fund (FUSF) Surcharges do not apply to Maritime Carriers. (T)

(This page filed under Transmittal No. 3266 )

Issued: August 22, 2008 Effective: September 6, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 28th Revised Page 4-8 Cancels 27th Revised Page 4-8

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.4 Rates and Charges

All rates and charges contained in this section are applicable to Arkansas, Kansas, Missouri, Oklahoma and Texas as indicated. The applicable USOCs are included where appropriate.

(A) EUCL-Primary Residential

(1) Arkansas USOC Rate Per Month

- Per individual line 9ZR11 $ 5.40 (I)

(2) Kansas

- Per individual line 9ZR11 5.40 (I)

(3) Missouri

- Per individual line 9ZR11 5.40 (I)

(4) Oklahoma

- Per individual line 9ZR11 5.40 (I)

(5) Texas

- Per individual line 9ZR11 5.40 (I)

(This page filed under Transmittal No. 3427 )

Issued: June 16, 2016 Effective: July 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 29th Revised Page 4-8.1 Cancels 28th Revised Page 4-8.1

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.4 Rates and Charges (Cont'd)

(B) End User Common Line-Non-Primary Residential and BRI ISDN

(1) Arkansas USOC Rate Per Month

- Per individual line 9ZRMR $ 5.40 (I)

- BRI ISDN Facility 9ZRB2 $ 5.40 (I)

(2) Kansas

- Per individual line 9ZRMR $ 5.40 (I)

- BRI ISDN Facility 9ZRB2 $ 5.40 (I)

(3) Missouri

- Per individual line 9ZRMR $ 5.40 (I)

- BRI ISDN Facility 9ZRB2 $ 5.40 (I)

(4) Oklahoma

- Per individual line 9ZRMR $ 5.40 (I)

- BRI ISDN Facility 9ZRB2 $ 5.40 (I)

(5) Texas

- Per individual line 9ZRMR $ 5.40 (I)

- BRI ISDN Facility 9ZRB2 $ 5.40 (I)

(This page filed under Transmittal No. 3427 )

Issued: June 16, 2016 Effective: July 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 29th Revised Page 4-9 Cancels 28th Revised Page 4-9

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.4 Rates and Charges (Cont'd)

(C) EUCL-Business

(1) Arkansas USOC Rate Per Month

- Per individual line 9ZR22 $ 5.40 (I)

(2) Kansas

- Per individual line 9ZR22 5.40 (I)

(3) Missouri

- Per individual line 9ZR22 5.40 (I)

(4) Oklahoma

- Per individual line 9ZR22 5.40 (I)

(5) Texas

- Per individual line 9ZR22 5.40 (I)

(This page filed under Transmittal No. 3427 )

Issued: June 16, 2016 Effective: July 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 54th Revised Page 4-10 Cancels 53rd Revised Page 4-10

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.4 Rates and Charges (Cont'd)

(D) EUCL-Multiline Business and PRI ISDN

(1) Arkansas USOC Rate Per Month

- Individual line or trunk, each 9ZR $ 5.40 (I)

- PRI ISDN, Facility 9ZRP1 27.00 (I)

(2) Kansas

- Individual line or trunk, each 9ZR $ 5.40 (I)

- PRI ISDN, Facility 9ZRP1 27.00 (I)

(3) Missouri

- Individual line or trunk, each 9ZR $ 5.40 (I)

- PRI ISDN, Facility 9ZRP1 27.00 (I)

(This page filed under Transmittal No. 3427 )

Issued: June 16, 2016 Effective: July 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 54th Revised Page 4-11 Cancels 53rd Revised Page 4-11

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.4 Rates and Charges (Cont'd)

(D) EUCL-Multiline Business and PRI ISDN (Cont'd)

(4) Oklahoma USOC Rate Per Month

- Individual line or trunk, each 9ZR $ 5.40 (I)

- PRI ISDN, Facility 9ZRP1 27.00 (I)

(5) Texas

- Individual line or trunk, each 9ZR $ 5.40 (I)

- PRI ISDN, Facility 9ZRP1 27.00 (I)

(This page filed under Transmittal No. 3427 )

Issued: June 16, 2016 Effective: July 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 52nd Revised Page 4-12 Cancels 51st Revised Page 4-12

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.4 Rates and Charges (Cont'd)

(E) EUCL-Centrex CO and CO-like (Installed or on Order Prior to July 28, 1983)

(1) Arkansas USOC Rate Per Month

- Per individual line 9ZC $ 5.40 (I)

(2) Kansas

- Per individual line 9ZC $ 5.40 (I)

(3) Missouri

- Per individual line 9ZC $ 5.40 (I)

(4) Oklahoma

- Per individual line 9ZC $ 5.40 (I)

(5) Texas

- Per individual line 9ZC $ 5.40 (I)

(This page filed under Transmittal No. 3427 )

Issued: June 16, 2016 Effective: July 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 4-12.1 Cancels 4th Revised Page 4-12.1

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.4 Rates and Charges (Cont'd)

(F) Access Recovery Charge (ARC)

Rate Per Month (1) Arkansas

Residence, each 0.00

Single Line Business - Individual line or trunk, each 0.00

Multiline Business - Individual line or trunk, each 1.67 (I)

Centrex, each 1.67 (I)

ISDN-PRI 8.35 (I)

(2) Kansas

Residence, each 0.00

Single Line Business - Individual line or trunk, each 0.00

Multiline Business - Individual line or trunk, each 1.67 (I)

Centrex, each 1.67 (I)

ISDN-PRI 8.35 (I)

(3) Missouri

Residence, each 0.00

Single Line Business - Individual line or trunk, each 0.00

Multiline Business - Individual line or trunk, each 1.67 (I)

Centrex, each 1.67 (I)

ISDN-PRI 8.35 (I)

(This page filed under Transmittal No. 3427 )

Issued: June 16, 2016 Effective: July 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 4-12.2 Cancels 4th Revised Page 4-12.2

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.4 Rates and Charges (Cont'd)

(F) Access Recovery Charge (ARC) (Cont’d)

Rate Per Month

(4) Oklahoma

Residence, each 0.00

Single Line Business - Individual line or trunk, each 0.00

Multiline Business - Individual line or trunk, each 1.67 (I)

Centrex, each 1.67 (I)

ISDN-PRI 8.35 (I)

(5) Texas

Residence, each 0.00

Single Line Business - Individual line or trunk, each 0.00

Multiline Business - Individual line or trunk, each 1.67 (I)

Centrex, each 1.67 (I)

ISDN-PRI 8.35 (I)

(This page filed under Transmittal No. 3427 )

Issued: June 16, 2016 Effective: July 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 76th Revised Page 4-13 Cancels 75th Revised Page 4-13

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.4 Rates and Charges (Cont'd)

(G) End User Port Charge USOC Rate Per Month

(1) BRI ISDN Port - Per port PT8YX $1.59

(2) PRI ISDN Port - Per port PT8ZX $49.01

(H) Basic Federal Universal Service Fund (FUSF) Surcharge:

USOC Rate Per Month (1) Arkansas

(a) Residential 9PZRS $ 0.93 (R) (b) Single-Line Business 9PZBU $ 0.93 (R) (c) ISDN BRI 9PZL1 $ 1.21 (R) (d) Multiline Business 9PZLM $ 1.49 (R) (e) PRI ISDN 9PZP1 $15.97 (R) (f) PBX 9PZPX $ 1.49 (R) (g) Centrex CO and CO-Like 9PZCX $ 0.16 (R) (h) PIC Change Charge (1) Per manual change $ 0.74 (R) (2) Per manual supplemental change $ 0.40 (R) (3) Per mechanized change $ 0.27 (4) Per mechanized supplemental change $ 0.27 (5) Per Plexar group change $ 4.55 (R) (6) Per Plexar group supplemental Change $ 0.05

(2) Kansas

(a) Residential 9PZRS $ 0.93 (R) (b) Single-Line Business 9PZBU $ 0.93 (R) (c) ISDN BRI 9PZL1 $ 1.21 (R) (d) Multiline Business 9PZLM $ 1.40 (R) (e) PRI ISDN 9PZP1 $15.52 (R) (f) PBX 9PZPX $ 1.40 (R) (g) Centrex CO and CO-Like 9PZCX $ 0.15 (R) (h) PIC Change Charge (1) Per manual change $ 0.78 (R) (2) Per manual supplemental change $ 0.41 (R) (3) Per mechanized change $ 0.27 (R) (4) Per mechanized supplemental Change $ 0.27 (R) (5) Per Plexar group change $ 4.75 (R) (6) Per Plexar group supplemental Change $ 0.05 (R)

(This page filed under Transmittal No. 3434 )

Issued: September 16, 2016 Effective: October 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 71st Revised Page 4-14 Cancels 70th Revised Page 4-14

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.4 Rates and Charges (Cont'd)

(H) Basic Federal Universal Service Fund (FUSF) Surcharge: (Cont’d)

USOC Rate Per Month (3) Missouri

(a) Residential 9PZRS $ 0.93 (R) (b) Single-Line Business 9PZBU $ 0.93 (R) (c) ISDN BRI 9PZL1 $ 1.21 (R) (d) Multiline Business 9PZLM $ 1.52 (R) (e) PRI ISDN 9PZP1 $16.12 (R) (f) PBX 9PZPX $ 1.52 (R) (g) Centrex CO and CO-Like 9PZCX $ 0.16 (R) (h) PIC Change Charge (1) Per manual change $ 0.76 (R) (2) Per manual supplemental change $ 0.41 (R) (3) Per mechanized change $ 0.28 (R) (4) Per mechanized supplemental change $ 0.28 (R) (5) Per Plexar group change $ 4.67 (R) (6) Per Plexar group supplemental change $ 0.0 5 (R) (4) Oklahoma

(a) Residential 9PZRS $ 0.93 (R) (b) Single-Line Business 9PZBU $ 0.93 (R) (c) ISDN BRI 9PZL1 $ 1.21 (R) (d) Multiline Business 9PZLM $ 1.42 (R) (e) PRI ISDN 9PZP1 $15.62 (R) (f) PBX 9PZPX $ 1.42 (R) (g) Centrex CO and CO-Like 9PZCX $ 0.15 (R) (h) PIC Change Charge (1) Per manual change $ 0.76 (R) (2) Per manual supplemental change $ 0.41 (R) (3) Per mechanized change $ 0.28 (R) (4) Per mechanized supplemental change $ 0.28 (R) (5) Per Plexar group change $ 4.70 (R) (6) Per Plexar group supplemental change $ 0.05 (R)

.

(This page filed under Transmittal No. 3434 )

Issued: September 16, 2016 Effective: October 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 52nd Revised Page 4-15 Cancels 51st Revised Page 4-15

ACCESS SERVICE

4. End User Access Service (Cont'd)

4.4 Rates and Charges (Cont'd)

(H) Basic Federal Universal Service Fund (FUSF) Surcharge: (Cont’d)

(5) Texas

(a) Residential 9PZRS $ 0.93 (R) (b) Single-Line Business 9PZBU $ 0.93 (R) (c) ISDN BRI 9PZL1 $ 1.21 (R) (d) Multiline Business 9PZLM $ 1.40 (R) (e) PRI ISDN 9PZP1 $15.52 (R) (f) PBX 9PZPX $ 1.40 (R) (g) Centrex CO and CO-Like 9PZCX $ 0.15 (h) PIC Change Charge (1) Per manual change $ 0.77 (R) (2) Per manual supplemental change $ 0.41 (R) (3) Per mechanized change $ 0.28 (R) (4) Per mechanized supplemental Change $ 0.28 (R) (5) Per Plexar group change $ 4.72 (R) (6) Per Plexar group supplemental change $ 0.05 (R)

(This page filed under Transmittal No. 3434 )

Issued: September 16, 2016 Effective: October 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 40th Revised Page 5-1 Cancels 39th Revised Page 5-1

ACCESS SERVICE

Page

5. Ordering for Access Service 5-1

5.1 General 5-3

5.2 Access Order 5-4 5.2.1 Ordering Conditions 5-4 5.2.2 Ordering Requirements 5-5 (A) Feature Group A (FGA) or Circuit Switched-Line Side BSA (BSA-A) Switched Access Service 5-6 (B) Feature Group B (FGB), Feature Group D (FGD) or Circuit Switched-Trunk Side BSA Alternatives B or D (BSA-B or BSA-D) Switched Access Service 5-7.1 (C) Switched Transport and Directory Transport Services 5-8.1 (D) Dedicated Network Access Link (DNAL) 5-10 (E) 800 Number Portability Access Service (NPAS) 5-10 (F) 900 Access Service 5-11 (G) Directory Assistance (DA) Access Service 5-12 (H) Special Access Service 5-12.1 (I) WATS Access Line Service 5-13 (J) Self-Healing Transport Networks 5-13 (K) MegaLink Custom Services 5-14 (L) MicroLink II Service 5-15 (M) Operator Call Processing 5-15 (N) Carrier Identification Code Parameter (CIP) 5-16 (O) Common Channel Signaling/Signaling System 7 (CCS/SS7) 5-16 (P) Line Information Data Base (LIDB) Service 5-17 (Q) Signaling System 7 (SS7) Signaling 5-17 (R) Expanded Interconnection 5-17.1 (S) TIPToP Service 5-17.7 (T) Telecommunications Relay Interconnection Service (TRIS) 5-17.5 (U) Multiple 64 Clear Channel Capability (64 CCC) 5-17.5 (V) Advanced Carrier Identification Service (ACIS) 5-17.6 (W) (D) (X) ReliaNet Service 5-17.11 (Y) Service Provider Number Portability 5-17.12 (Z) Shared Network Arrangement 5-17.12

5.2.3 Service Provisioning Intervals 5-18 5.2.4 Selection of Facilities for Access Orders 5-19 5.2.5 Shared Use 5-20 5.2.6 Provision of Other Services 5-21 (A) Testing Service, Additional Labor and Telecommunications Service Priority 5-21 (B) Additional Engineering 5-22 (C) Special Construction 5-22

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 5-2 Cancels 8th Revised Page 5-2

ACCESS SERVICE

Page

5.3 Rate Regulations 5-23

5.3.1 Access Order Charges 5-23 5.3.2 Access Order Modification Charges 5-25 (A) Design Change Charge 5-26 (B) Service Date Change Charge/Dispatch Charge 5-27 (C) Expedited Order Charge 5-29 (D) Partial Cancellation Charge 5-30.2 5.3.3 Access Order Cancellation Charges (excluding the following Special Access Services: (1), Self-healing (D) Transport Network (STN), ReliaNet, (1)) 5-31

(D) (A) Cancellation of an Access Order 5-31 (B) When Cancellation Charges Apply 5-31 (C) When Cancellation Charges Do Not Apply 5-32 5.3.3.1 Access Order Cancellation Charges (for the following Special Access Services: (1), Self-healing Transport (D) Network (STN), ReliaNet, (1)) 5-32

(D) (A) Cancellation of a letter of agreement 5-33 (B) Cancellation of Access Order 5-34.1 5.3.4 Minimum Period Requirements 5-34.3

5.4 Rates and Charges 5-35

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook. (This page filed under Transmittal No. 3254 )

Issued: March 12, 2008 Effective: March 27, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 5-3 Cancels Original Page 5-3

ACCESS SERVICE

5. Ordering for Access Service

5.1 General

This section contains the regulations and order related charges for Access Services provided in this tariff. These charges are in addition to applicable charges contained in other sections of this tariff.

An access order is an order to provide the customer with Access Services or to provide modifications to existing services. Depending (C) upon the services, facilities or service interval dates requested, one or more access orders may be required to provide the customer with access service.

Access orders are processed on a first come-first served basis. First come-first served shall be based upon the received time and date stamped by the Telephone Company on customer orders which contain the information as required for each respective service as delineated in this tariff. Customer orders shall not be deemed to have been received until such information is provided. When necessary, the Telephone Company will attempt to seek clarification on a verbal basis. The Telephone Company will initiate the order process within one working day of receipt of the customer's order.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 5-4 Cancels 4th Revised Page 5-4

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order

5.2.1 Ordering Conditions

An order for Access Service is subject to the following conditions:

(A) A customer may order any number of services of the same type and between the same premises on a single access order provided all details are for the same service (except for those for multipoint service), except when requested activity involves more than ten Carrier Identification Codes. An additional Access Order is required for each additional group of ten Carrier Identification Codes requiring establishment, removal, or changes.

(B) The Telephone Company may order comparable special access services pursuant to this tariff on behalf of (N) telecommunications service providers who are purchasing

DS1 or DS3 loop or transport, entrance facilities, dedicated transport DS0 or Optical Carrier Network as unbundled network elements (UNEs) from the Telephone Company for which they are no longer eligible, as of March 12, 2006, unless alternative arrangements have been made as of March 12, 2006. Non-recurring Access Service Order charge will apply. (N) (C) The customer shall provide all information necessary for the Telephone Company to provide and bill for the (T) requested service. Such information is described in 5.2.2 (Ordering Requirements).

(D) The Telephone Company will establish a service date when the customer has provided an access order that contains (T) the required information for each respective service. The date on which the service date is established is considered to be the application date. The Telephone Company will provide a firm order confirmation to the customer and will advise the customer of the application date and the service date.

(E) For Expanded Interconnection, an interconnector may, within a single wire center, order multiple quantities (T) of designated basic transmission equipment associated with a single entrance cable on the same virtual collocation application form.

The interconnection cross connect is limited to one single point of termination address (e.g., aisle, bay, panel and jack) per access order.

(This page filed under Transmittal No. 3117 )

Issued: February 24, 2006 Effective: March 11, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 5-4.1 Cancels 2nd Revised Page 5-4.1

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order

5.2.1 Ordering Conditions (Cont’d)

Except as provided below, the Telephone Company shall permit a requesting telecommunications carrier to commingle an unbundled network element or a combination of unbundled network elements with wholesale services obtained from the Telephone Company, to the extent provided by and subject to the terms and conditions of the requesting telecommunications carrier’s interconnection agreement with the Telephone Company (or, if applicable, of the Telephone Company intrastate tariffs).(1)

The Telephone Company need not provide access to (1) an unbundled DS1 loop in combination, or commingled, with a dedicated DS1 transport or dedicated DS3 transport facility or service, or to an unbundled DS3 loop in combination, or commingled, with a dedicated DS3 transport facility or service, or (2) an unbundled dedicated DS1 transport facility in combination, or commingled, with an unbundled DS1 loop or a DS1 channel termination service, or to an unbundled dedicated DS3 transport facility in combination, or commingled, with an unbundled DS1 loop or a DS1 channel termination service, or to an unbundled DS3 loop or a DS3 channel termination service, unless the requesting telecommunications carrier certifies (1) that all of the following conditions are met

(1) The requesting telecommunications carrier has received state certification to provide local voice service in the area being served or, in the absence of a state certification requirement, has complied with registration, tariffing, filing fee, or other regulatory requirements applicable to the provision of local voice service in that area.

(2) The following criteria are satisfied for each combined circuit, including each DS1 circuit, each DS1 enhanced extended link, and each DS1-equivalent circuit on a DS3 enhanced extended link:

(i) Each circuit to be provided to each end user customer will be assigned a local number prior to the provision of service over that circuit;

(ii) Each DS1-equivalent circuit on a DS3 enhanced extended link must have its own local number assignment, so that each DS3 must have at least 28 local voice numbers assigned to it;

(1) In the event the Commission or a court, pursuant to any regulatory or judicial review of the Commission’s Review of the Section 251 Unbundling Obligations of Incumbent Local Exchange Carriers, Report and Order and Order on Remand and Further Notice of Proposed Rulemaking, CC Docket No. 01-338, FCC 03-36, para. 581 (released Aug. 21, 2003) (Triennial Review Order), vacates, stays, remands, reconsiders, or rejects the portion of the Triennial Review Order requiring ILECs to permit commingling, the terms and conditions of this tariff authorizing commingling, which are identified with a footnote, shall cease to be effective as of the effective date of the Commission order or the issuance of the court’s mandate. In that event, the Telephone Company will provide customers that have commingled UNE(s) and/or UNE Combination(s) with wholesale services obtained under this Tariff written notice that, within 30 days, customers must either convert such UNE(s) or UNE Combination(s) to a comparable service, or disconnect such UNE(s) and/or UNE Combination(s) from those wholesale services. Failure to provide the Telephone Company instructions to convert or disconnect such UNE(s) and/or UNE Combination(s) within 30 days, as described above, shall be deemed authorization to convert the UNE(s) and/or UNE Combination(s) to comparable access services at month-to-month rates. (T)

(This page filed under Transmittal No. 3018 )

Issued: November 19, 2004 Effective: December 4, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 5-4.2 Cancels 2nd Revised Page 5-4.2

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order

5.2.1 Ordering Conditions (Cont’d)

(iii) Each circuit to be provided to each end user customer will have 911 or E911 capability prior to the provision of service over that circuit;

(iv) Each circuit to be provided to each end user customer will terminate in a collocation arrangement that meets the requirements detailed below;

(v) Each circuit to be provided to each end user customer will be served by an interconnection trunk that meets the requirements detailed below;

(vi) For each 24 DS1 enhanced extended links or other facilities having equivalent capacity, the requesting telecommunications carrier will have at least one active DS1 local service interconnection trunk that meets the requirements detailed below; and

(vii) Each circuit to be provided to each end user customer will be served by a switch capable of switching local voice traffic.

A collocation arrangement meets the requirements in (iv) above if it is:

(1) Established pursuant to section 251(c)(6) of the Act and located at the Telephone Company’s premises within the same LATA as the customer’s premises, when the Telephone Company is not the collocator; and

(2) Located at a third party’s premises within the same LATA as the customer’s premises, when the Telephone Company is the collocator.

An interconnection trunk meets the requirements of (v) and (vi) above in this certification if the requesting telecommunications carrier will transmit the calling party’s number in connection with calls exchanged over the trunk and the trunk is located in the same LATA as the customer premises served by the EEL.(1)

(1) In the event the Commission or a court, pursuant to any regulatory or judicial review of the Commission’s Review of the Section 251 Unbundling Obligations of Incumbent Local Exchange Carriers, Report and Order and Order on Remand and Further Notice of Proposed Rulemaking, CC Docket No. 01-338, FCC 03-36, para. 581 (released Aug. 21, 2003) (Triennial Review Order), vacates, stays, remands, reconsiders, or rejects the portion of the Triennial Review Order requiring ILECs to permit commingling, the terms and conditions of this tariff authorizing commingling, which are identified with a footnote, shall cease to be effective as of the effective date of the Commission order or the issuance of the court’s mandate. In that event, the Telephone Company will provide customers that have commingled UNE(s) and/or UNE (T) Combination(s) with wholesale services obtained under this Tariff written notice that, within 30 days, customers must either convert such UNE(s) or UNE Combination(s) to a comparable service, or disconnect such UNE(s) and/or UNE Combination(s) from those wholesale services.

Failure to provide the Telephone Company instructions to convert or disconnect such UNE(s) and/or UNE Combination(s) within 30 days, as described above, shall be deemed authorization to convert the UNE(s) and/or UNE Combination(s) to comparable access services at month-to-month rates.

(This page filed under Transmittal No. 3018 )

Issued: November 19, 2004 Effective: December 4, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 5-5 Cancels 2nd Revised Page 5-5

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements

If a PIU is required, the customer must provide its PIU when placing an order for Access Services in accordance with Section 2.4 of this tariff.

When placing an order for Access Services the customer is required to provide the following information:

- Customer name and premises address(es) - Billing name and address (when different from customer name and address) - Customer contact name(s) and telephone number(s) for the provisioning activities of order negotiation, order confirmation, interactive design, installation and billing

In addition to the information listed above, the customer shall provide, at a minimum, information for the specific services requested as described herein.

Where Access Services are jointly provided, additional regulations are set forth in 2.6 (Jointly-Provided Access Services).

For services which involve remote switching offices, remote switching office to host relationships are provided to all customers by the Telephone Company. Customers who want to receive this information should contact their Telephone Company Account (C) Manager, Access Service Center (ASC) or Business Service Center (C) (BSC). (C) (C) For services which require Switched Transport or Directory Transport services, the customer must also specify the minimum ordering information set forth in 5.2.2(C) (Switched Transport and Directory Transport Services).

(This page filed under Transmittal No. 2844 )

Issued: September 7, 2000 Effective: September 22, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 5-5.1 Cancels 4th Revised Page 5-5.1

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

Except for virtual collocation, selection of facilities, equipment and traffic routing of Switched Access Services are based on standard engineering methods, available facilities and equipment, Telephone Company traffic routing plans, the customer's order for Switched Transport Service or Directory Transport Service, and the customer's order for FGA, BSA-A, FGB and BSA-B Switched Access Service as set forth in 6.7.2 (Design and Traffic Routing of Switched Access Service). If the customer desires routing or directionality different from that determined by the Telephone Company, the Telephone Company will work cooperatively with the customer in determining the routing and directionality of the service.

For virtual collocation, selection of the general type of equipment to be dedicated to the interconnector's use will be done by the interconnector. For SONET-Based Interconnection (SBI) the Telephone Company will specify the equipment to be (S) dedicated to the interconnector's use. Selection of locations │ within the wire center for the placement of all virtual (S) collocation facilities and basic transmission equipment and SBI equipment will be done by the Telephone Company. All other ordering requirements set forth in 5.2.2 apply.

Reissued material is filed under authority of Special Permission No. 95-930 of the F.C.C. and is deferred until August 26, 1995.

(This page filed under Transmittal No. 2486 )

Issued: July 27, 1995 Effective: July 27, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 5-6 Cancels 5th Revised Page 5-6

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

All line side connections provided in the same access group (feature group or BSA) will be limited to the same features and operating characteristics. All trunk side connections provided in the same access group will be limited to the same features and operating characteristics. The features and operating characteristics for line side and trunk side connections are specified in 6.6 (Switched Access Features and Basic Service Elements) and 6.7 (Service Provisioning).

Regulations concerning the ordering of Testing Service, Additional Labor, Telecommunications Service Priority and Special Construction are contained in 5.2.6 (Provision of Other Services).

(A) Feature Group A (FGA) or Circuit Switched-Line Side BSA (BSA-A) Switched Access Service

The customer shall specify the Interexchange Carrier to which the FGA or BSA-A service is connected or, in the alternative, specify the means by which the FGA or the line side access communication is transported to another state.

The customer shall also specify the number of lines and the first point of switching (i.e., dial tone office), the directionality of the service, and the Switched Transport and Local Switching features desired. The first point of switching cannot be an end office served by a Remote Switching System (RSS) or Remote Switching Module (RSM) because all traffic originating or terminating at a remote switching office must switch through its host office.

(This page filed under Transmittal No. 2572 )

Issued: August 30, 1996 Effective: October 14, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 5-7 Cancels 2nd Revised Page 5-7

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(A) Feature Group A (FGA) or Circuit Switched-Line Side BSA (BSA-A) Switched Access Service (Cont'd)

In addition, the customer shall specify whether the ordered lines are for MTS/WATS-type or FX-ONAL services. The customer shall also specify which MTS/WATS-type FGA or BSA- A lines are to be arranged in multiline hunt group arrangements and which lines are to be provided as single lines.

The customer shall indicate if the FGA or BSA-A Switched Access Service is to be provided with an extension to a different LATA. When an extension is indicated on the order, the customer must specify the customer designated premises within the LATA of the Switched Access FGA or BSA- A service at which the FGA or BSA-A extension is to be terminated.

The customer must also specify if new or existing Switched Transport facilities, interconnection cross connect, or switched transport connection will be used. If a new Switched Transport facility or facilities are specified, additional information as set forth in (C) following is also required. If an existing Switched Transport facility or facilities are specified, such facilities must have a compatible interface and available capacity to install the FGA or BSA-A service. If a new interconnection cross connect or switched transport connection is to be used, the customer must provide the Telephone Company with information sufficient to identify the interconnection cross connect or switched transport connection. In addition, the customer must also specify the circuit facility assignment for the FGA or BSA-A being installed.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141.

(This page filed under Transmittal No. 2383 )

Issued: September 1, 1994 Effective: December 15, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 5-7.1 Cancels 1st Revised Page 5-7.1

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(B) Feature Group B (FGB), Feature Group D (FGD) or Circuit Switched-Trunk Side BSA Alternatives B or D (BSA-B or BSA- D) Switched Access Service

The customer shall specify the number of trunks, directionality of the service, the entry switch and the Switched Transport and Local Switching features desired. The first point of switching cannot be an end office provided by an RSS or RSM because all traffic originating from or terminating at a remote switching office must switch through its host office. When an end office is the specified entry switch, the Telephone Company will work cooperatively with the customer to determine if direct trunking to the end office will be provided.

When the customer orders trunk quantities to an access tandem, the Telephone Company may request an estimate of the amount of traffic the customer will generate to and from each end office subtending the access tandem to assist the Telephone Company in its own efforts to project further facility requirements. Traffic estimates to end offices (Dx) served by remote switching offices should be uniquely identified and not included in traffic estimates to the host. The traffic type must also be specified using the categories described in 6.7.1 (Manner of Provisioning), to enable efficient provisioning and billing functions.

When ordering FGB or BSA-B, the customer shall specify the Interexchange Carrier to which the FGB or BSA-B service is connected or, in the alternative, specify the means by which the FGB or BSA-B access communication is transported to another state.

(x) Issued under authority of Special Permission No. 13-019 of the FCC in order to withdraw material filed under Transmittal No. 3376 without its becoming effective and to restore currently effective material.

(This page filed under Transmittal No. 3378 )

Issued: August 8, 2013 Effective: August 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 5-8 Cancels 3rd Revised Page 5-8

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(B) Feature Group B (FGB), Feature Group D (FGD) or Circuit (D) Switched-Trunk Side BSA Alternatives B or D (BSA-B or BSA- (D) D) Switched Access Service (Cont'd)

When FGD or BSA-D Switched Access Service is ordered for the provision of MicroLink I Access Capability, the customer must have digital facilities between the customer designated premises and the access tandem or end office for originating and terminating traffic. The customer must also specify the traffic type as described in 6.7.1 (Manner of Provisioning).

When ordering FGB, FGD, BSA-B, or BSA-D, the customer must (D) also specify if new or existing Switched Transport facilities, interconnection cross connect or switched transport connection will be used. If a new Switched Transport facility or facilities are specified, additional information as set forth in (C) following is also required. If an existing Switched Transport facility or facilities are specified, such facilities must have a compatible interface and available capacity to install the service. If a new interconnection cross connect or switched transport connection is to be used, the customer must provide the Telephone Company with information sufficient to identify the interconnection cross connect or switched transport connection. In addition, the customer must also specify the circuit facility assignment for the FGB, FGD, (D) BSA-B, or BSA-D service being installed. (D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 5-8.1 Cancels 1st Revised Page 5-8.1

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(C) Switched Transport and Directory Transport Services

When the customer orders Switched Transport Service or Directory Transport Service, the customer must designate at least one line side or trunk side Switched Access Service or Directory Assistance Access Service that will use the transport facility or facilities.

When a customer orders Switched Transport Service or Directory Assistance Access Service and specifies that the facility is to be interconnected with another transport facility, the customer must specify compatible channel interfaces.

The minimum information required to order Switched Transport Service or Directory Transport Service is set forth in (C)(1) through (C)(3) following. Such information is in addition to the information required to order line side or trunk side Switched Access Service or Directory Assistance Access Service.

(1) Entrance Facility

If the Entrance Facility is new, the customer must specify the customer premises, the connection type (Voice Grade, DS1 or DS3), the interface group and the Switched Transport features (including multiplexing, if this feature is desired at the serving wire center).

If the Entrance Facility is existing, the customer must provide the information set forth in 5.2.2(A) and (B) preceding.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141.

(This page filed under Transmittal No. 2383 )

Issued: September 1, 1994 Effective: December 15, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 5-8.2 Cancels 2nd Revised Page 5-8.2

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(C) Switched Transport and Directory Transport Services (Cont'd)

(2) Direct-Trunked Transport

If the Direct-Trunked Transport is new, the customer must specify the connection type (Voice Grade, DS1 or DS3), the channel interface and the Switched Transport features desired (including multiplexing). If multiplexing is requested, the customer must specify the type of multiplexing required and each hub where the multiplexer or multiplexers are to be installed.

The customer must also specify the Entrance Facility or interconnection cross connect to which the Direct- Trunked Transport is interconnected and whether or not the Entrance Facility or interconnection cross connect is new or existing. The Entrance Facility must have an interface that is compatible with the Direct- Trunked Transport being requested.

If the Entrance Facility to which the Direct-Trunked Transport is to be interconnected is new, additional information as specified in (C)(1), is required. If either the Direct-Trunked Transport or the Entrance Facility (to which the Direct-Trunked Transport is to be interconnected) is existing, additional information, as set forth in 5.2.2(A) and (B) preceding must be provided.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141.

(This page filed under Transmittal No. 2383 )

Issued: September 1, 1994 Effective: December 15, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 5-8.3 Cancels 4th Revised Page 5-8.3

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(C) Switched Transport and Directory Transport Services (Cont'd)

(3) Tandem-Switched Transport

If the Tandem-Switched Transport is new, the customer must specify the connection type (Voice Grade, DS1 or DS3) to be used between the end office and the access (C) tandem. The customer must also specify the Switched Transport features desired (including multiplexing). (C) If multiplexing is requested, the customer must specify the type of multiplexing required and each hub (C) where the multiplexer or multiplexers are to be installed.

(D) │ │ │ │ │ │ │ │ │ │ │ (D)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 5-8.4 Cancels Original Page 5-8.4

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(C) Switched Transport and Directory Transport Services (Cont'd)

(3) Tandem-Switched Transport (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ (D)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 5-9 Cancels 6th Revised Page 5-9

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(C) Switched Transport and Directory Transport Services (Cont'd)

To determine the number of lines or trunks to order, the customer may first wish to calculate the Busy Hour Minutes of Capacity (BHMCs) and then use those BHMCs to determine the number of lines or trunks. BHMCs may be determined by the customer in the following manner:

(1) For each day, determine the highest number of minutes of use for a single hour (e.g., 55 minutes in the 10- 11 AM hour).

(2) For the same hour period (i.e., busy hour), determine the sum of the twenty consecutive days in a calendar year which represent the largest number of minutes of use.

(3) Determine the average Busy Hour Minutes of Capacity (i.e., BHMC) by dividing the sum from Step (2) by 20.

(D) │ │ (D)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 5-10 Cancels 2nd Revised Page 5-10

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(D) Dedicated Network Access Link (DNAL)

The customer shall specify the designated customer premises, the channel interface and the line side or trunk side Switched Access BSA to be associated with the DNAL.

(E) 800 Number Portability Access Service (NPAS)

Direct routing will be provided from SSP equipped end offices, i.e., end offices equipped to provide customer identification. All 800 traffic originating from end offices not equipped to provide customer identification will require routing to an access tandem where the customer identification function is available. Customers who want to receive this information should contact their Telephone Company Account Manager, Access Service Center (ASC) or Business Service Center (BSC). (C) (C) (C) (C)

(This page filed under Transmittal No. 2844 )

Issued: September 7, 2000 Effective: September 22, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 5-11 Cancels 1st Revised Page 5-11

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(E) 800 Number Portability Access Service (NPAS) (Cont'd)

800 NPAS requires FGD or BSA-D Switched Access Service. The customer shall designate which originating FGD or BSA-D Switched Access Service trunk groups are to be associated with 800 NPAS. Calls originating from an Area of Service in which the Customer has not ordered sufficient originating FGD or BSA-D Switched Access Service will be blocked.

(F) 900 Access Service

The customer must have LATA-wide Switched Access in order to receive 900 Access Service traffic. The customer shall specify the LATAs from which they wish to receive originating 900 Access Service calls, the 900 NXX codes to be activated in a given LATA and the desired due date of the order. 900 Access Service calls originating from LATAs in which the customer has not ordered 900 Access Service will be blocked.

1+900 Access Service may be combined with FGB, FGD, BSA-B, (D) or BSA-D Switched Access Service. The customer shall (D) designate which FGB, FGD, BSA-B, or BSA-D Switched Access (D) Service trunk groups are to be associated with the 1+900 Access Service. However, when FGD or BSA-D Switched Access Service becomes available in an end office, 1+900 Access Service traffic originating from that end office must be provided with FGD or BSA-D Switched Access Service.

0+900 Access Service traffic is available only when combined with 1+900 Access Service provided with FGD or BSA-D Switched Access Service.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 5-12 Cancels 2nd Revised Page 5-12

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(F) 900 Access Service (Cont'd)

Information regarding 900 Access Service Screening Offices will be provided to customers who contact their Telephone Company Account Manager, Access Service Center (ASC) or Business Service Center (BSC).

(G) Directory Assistance (DA) Access Service

Directory Assistance can be utilized with FGA, FGB, FGD, (D) BSA-A, BSA-B, or BSA-D Switched Access Services. For FGB, (D) FGD, BSA-B, and BSA-D Switched Access Service, the customer(D) shall specify the number of trunks required from the customer's premises to the Directory Assistance location. Where DA Access Service is combined with a FGB, FGD, BSA-B,(D) or BSA-D Switched Access Service, the customer shall also (D) specify which trunk group is to be associated with the DA Access Service. This information is used by the Telephone Company to determine the number of transmission paths. The customer then specifies the Directory Transport features.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 5-12.1 Cancels 1st Revised Page 5-12.1

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(G) Directory Assistance (DA) Access Service (Cont'd)

When Directory Assistance Access Service is ordered, the customer must also specify if new or existing Directory Transport services or interconnection cross connects are to be used. If a new Directory Transport facility or interconnection cross connect is specified, additional information as set forth in 5.2.2(C) (Switched Transport and Directory Transport Services) is also required. If an existing Directory Transport facility or facilities are specified, such facilities must have a compatible interface and available capacity to install the service. In addition, the customer must also specify the circuit facility assignment for the service being ordered.

(H) Special Access Service

For all Special Access Services, the customer must specify the customer designated premises, interconnection cross connects or hubs involved, the type of service (e.g., Voice Grade or WATS Access Line, High Capacity, MegaLink Custom, etc.), the channel interface, technical specification package and features desired. For multipoint services, the customer may request different channel interfaces at each premises; however, all such interfaces must be compatible.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141.

(This page filed under Transmittal No. 2383 )

Issued: September 1, 1994 Effective: December 15, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 5-13 Cancels 1st Revised Page 5-13

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(H) Special Access Service (Cont'd)

If Special Access Services are exempt from the Special Access Surcharge, as described in 7.2.5 (Surcharge for Special Access Service), the customer shall furnish the required certification when placing the access order. In addition, the customer must specify when ordering Special Access Services whether they are to be billed under an Optional Payment Plan as described in 7.2.19 (Optional Payment Plan) or a High Capacity Term Pricing Plan as described in 7.2.20 (High Capacity Term Pricing Plan).

(I) WATS Access Line Service

In addition to the ordering requirements for Special Access Service, for WATS Access Line Service the customer must also specify the type of calling for which the service is to be provided, the type of address signaling and the type of supervisory signaling desired. WATS Access Line Service may be ordered by all customers, both end users and Interexchange Carriers. Additionally, when the necessary screening functions are not provided at the wire center which serves the customer's premises, the Telephone Company will provide the service to the nearest wire center where capacity exists. In these circumstances, the customer will be so notified and the order will be changed to designate the appropriate premises. No charge will apply for the order modification.

(J) Self-Healing Transport Networks (STN)

For all Self-healing Transport Networks, the customer must specify the customer designated premises Access Nodes, the Telephone Company Access Nodes, Network Access Points (NAPs) associated with each Digital Transmission Link (DTL), DTL Volume Option and additional DTLs, if any, quantity and type of interface (ports) required at each STN node in terms of DS1, EC-1, DTL, OC3, OC3c or OC12, as well as any other optional features and functions.

(This page filed under Transmittal No. 2610 )

Issued: January 27, 1997 Effective: March 13, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 5-14 Cancels 1st Revised Page 5-14

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(J) Self-Healing Transport Networks (STN) (Cont'd)

If Self-Healing Transport Networks are exempt from the Special Access Surcharge, as described in 7.2.5 (Surcharge for Special Access Service), the customer shall furnish the required certification when placing the access order.

(K) MegaLink Custom Services

For all MegaLink Custom Services, the customer must specify the customer designated premises, interconnection cross connects or hubs involved, the interface type (electrical or optical) Channel Termination Volume Option(s), the features desired and billing period. Electrical interface and optical interface Channel Termination Volume Options, as specified in 20.4.1(A) (Channel Termination), may not be combined on one access order at the same customer designated premises. Channel Termination Volume Options for each Channel Termination for a customer designated premises to customer designated premises service must be the same.

If MegaLink Custom Services are exempt from the Special Access Surcharge, as described in 7.2.5 (Surcharge for Special Access Service), the customer shall furnish the required certification when placing the access order.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141.

(This page filed under Transmittal No. 2383 )

Issued: September 1, 1994 Effective: December 15, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 5-15 Cancels 8th Revised Page 5-15

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(L) MicroLink II Service(2)

The customer must specify the customer's designated premises, the Primary Market Area involved and the type of Access Termination (i.e., Public Dial(1), Private Dial(1) or Dedicated). The Telephone Company shall determine the switch at which point the customer enters the Primary Market Area as specified in 14.1.1 (General Description). For each Access Termination requested, the customer must also specify the type of protocol (i.e., Non-polled(1) Asynchronous(1), Synchronous, 3270 Bisynchronous(1), X.PC(1), X.75, etc.), data transmission speed and the features desired.

(M) Operator Call Processing

The customer must specify the FGD or BSA-D Switched Access (D) Service that will be used to transfer calls from the OSS tandem to the access customer. For 0perator Transfer, a separate trunk group and CIC must be established for each name to which 0perator Transfer calls are to be transferred. Customers who wish to participate in 0perator Transfer and do not presently have a CIC, will be required to obtain a four-digit CIC.

The customer must also specify the specific LATAs where the customer desires Operator Call Processing and whether 0perator Transfer, Inward Assistance or both are to be provided. In addition, the customer shall specify whether or not operator functionality, coin station control or both are to be provided by the customer.

OSS tandem interconnection requirements are specified in 16.3.1 (Manner of Provisioning). Information regarding OSS tandem locations will be provided to customers who contact their Telephone Company Account Manager, Access Service Center (ASC) or Business Service Center (BSC).

(1) This element or function is obsolete and limited to existing installations, for existing customers, as of September 30, 1997 and will no longer be available after April 1, 1999.

(2) As of October 6, 2004, MicroLink II service utilizing the X.75 protocol is obsolete and limited to existing installations, at existing locations, for existing customers

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 5-16 Cancels 10th Revised Page 5-16

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(N) Carrier Identification Code Parameter (CIP)

The Customer must specify per trunk group or tandem, and (T) all associated Carrier Identification Codes, the end offices that will be used to pass originating Carrier Identification Code Parameter (CIP) to the Customer's (T) designated premises. The Customer's end office must be (T) equipped with SS7 Signaling and is provided in conjunction with Common Channel Signaling/Signaling System 7 (CCS/SS7) Interconnection Service as set forth in Section 23. End offices so equipped may be found in National Exchange (T) Carrier Association Tariff F.C.C. No. 4. (T)

(O) Common Channel Signaling/Signaling System 7 (CCS/SS7) Interconnection Service

The Customer must specify the: (T)

- Number of access links - Link Type - Signaling Link Code - Customer Signaling Point Code (T) - Common Language Location Identifier (CLLI) codes of both (C) the Telephone Company’s interconnecting STP and the (T) FSPOI, if applicable (C) - Contact telephone number for installation and (C) maintenance of the customer's designated premises

The Customer's designated premises and the Telephone (T) Company's STP must be in the same LATA unless that LATA (C) STP has been removed through consolidation and rehoming. If the LATA STP has been removed through consolidation and rehoming, the Customer's designated premises and the Telephone Company's designated LATA FSPOI must be in the same LATA. (C)

In addition, the Customer will provide an estimate of total annual volume and busy hour busy month volume projected for(T) a period of three years. The forecast should be itemized by message type. The Telephone Company will utilize this forecast in its own efforts to project further facility requirements.

(This page filed under Transmittal No. 3415 )

Issued: October 13, 2015 Effective: October 28, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 5-17 Cancels 1st Revised Page 5-17

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(P) Line Information Data Base (LIDB) Service

Line Information Data Base (LIDB) Service is provided in conjunction with CCS/SS7 Interconnection Service, as set forth in Section 23 (Common Channel Signaling/Signaling System 7). In order to utilize LIDB Service, the customer must have CCS/SS7 Interconnection Service to the two Telephone Company Signaling Transfer Points (STPs) designated by the Telephone Company as the interconnecting STP pair to be utilized for interconnection to the CCS/SS7 network. The Telephone Company's STP locations are provided in the National Exchange Carriers Association, Inc. Tariff F.C.C. No. 4.

The customer must provide a LIDB Service Order Form which (T) specifies the originating point codes (OPCs) of the customer's designated Operator Service Systems (OSSs) sending the query or queries and the desired due date of the order. The customer must provide a LIDB Service Order (N) Form each time a LIDB Service Application is established. (N)

(Q) Signaling System 7 (SS7) Signaling

Signaling System 7 (SS7) Signaling is provided in conjunction with CCS/SS7 Interconnection Service as set forth in Section 23 and is only available with FGD and BSA- D Switched Access Service. The customer must specify the:

- switching point codes - trunk identification codes

The customer must also identify the CCS/SS7 Interconnection Service link associated with the FGD or BSA-D trunk group.

(This page filed under Transmittal No. 2616 )

Issued: February 28, 1997 Effective: April 14, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 5-17.1 Cancels 5th Revised Page 5-17.1

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(R) Expanded Interconnection (S)

(1) Virtual Collocation (S)

(a) Bona fide Request (S)

The interconnector must specify the Telephone (T) Company central office desired for virtual (S) collocation. In addition, the Telephone Company │ must be in receipt of the written description of │ the interconnector-designated equipment and the │ engineering design charge. The engineering │ design charge is specified in 25.7.5 (Rates and │ Charges) and is required per collocation request, │ per central office. The written description must │ include, at a minimum, the following: │ │ - manufacturer's name, │ - equipment name, │ - equipment type or model number, and │ - the quantity of equipment. │ │ In addition, if the interconnector desires to be │ considered a potential vendor of the equipment │ being designated, the bona fide request must │ include an attachment with a price quote for the │ designated equipment as well as information │ sufficient for the Telephone Company to determine │ the reasonableness of the offered price as set │ forth in 25.2.1(C) (Designation of Dedicated │ Equipment). (S)

Receipt of the application form and fifty percent (T) of the quotation of the nonrecurring charges, as │ set forth in 25.5.2(A) (Nonrecurring Charges for │ Installation) constitutes a bona fide request. (T)

Reissued material becomes effective December 15, 1994.

Revised material is issued on not less than 9 days' notice under authority of Special Permission No. 94-1415 of the F.C.C.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141.

(This page filed under Transmittal No. 2407 )

Issued: December 6, 1994 Effective: December 15, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 5-17.2 Cancels 7th Revised Page 5-17.2

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(R) Expanded Interconnection (Cont'd) (S) │ (1) Virtual Collocation (Cont'd) │ │ (a) Bona fide Request (Cont'd) │ │ Receipt of the engineering design charge and the │ Expanded Interconnection application form(s) will │ determine the order of priority (i.e., first │ come-first served basis) of interconnectors' (S) requests. If the equipment requested on the (T) application form is not tariffed in Section 25, │ the Telephone Company will tariff such equipment │ within 30 days of receipt of the application form │ and fifty percent of the quotation of the │ nonrecurring charges to become effective on 30 │ days' notice. (T)

(b) Minimum Ordering Requirements (S) │ The interconnector shall specify the description │ of the equipment (including manufacturer's name, │ equipment name, equipment type and model number │ and quantity of equipment), the release date of │ the software/firmware, cabling specifications and │ facility assignments between designated │ equipment. The interconnector will provide │ remote monitoring and control as described in │ Section 25. │ │ The interconnector may specify a maximum of two │ single mode dielectric fiber optic cables per │ wire center. The interconnector shall specify │ the number of fibers in each cable and the number │ of riser tails needed to splice all fibers │ provided at the time of installation. (S)

Reissued material becomes effective December 15, 1994.

Revised material is issued on not less than 9 days' notice under authority of Special Permission No. 94-1415 of the F.C.C.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141.

(This page filed under Transmittal No. 2407 )

Issued: December 6, 1994 Effective: December 15, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 5-17.3 Cancels 2nd Revised Page 5-17.3

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(R) Expanded Interconnection (Cont'd)

(1) Virtual Collocation (Cont'd)

(b) Minimum Ordering Requirements (Cont'd)

The interconnector must also designate basic transmission equipment to be dedicated to its use. The interconnector must also specify the number and type of interconnection cross connects desired for the interconnection of their designated arrangement.

(c) Interconnection Cross Connect

For the interconnection cross connect specified in 25.5 (Rate Regulations for Virtual Collocation), an order is limited to a single point of termination address. The interconnector must identify each interconnection cross connect as either switched, special or shared use. When ordering the interconnection cross connect to be provided as switched or shared use, the interconnector must specify the number of channels to be used for switched services.

When ordering the interconnection cross connect, the interconnecor must specify the existing Telephone Company-provided tariffed service or switched transport connection that connects to its interconnection cross connect. The Telephone Company-provided service or switched transport connection so specified may be either an existing or new circuit. If new, it must be ordered at the same time as the interconnection cross connect. The interconnector must also provide the frame address information (e.g., floor, aisle, bay, panel and jack) on the Access Order.

(d) Access Order Charges, as set forth in 5.4 (Access Order Charges) will apply to orders for virtual collocation.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141.

(This page filed under Transmittal No. 2383 )

Issued: September 1, 1994 Effective: December 15, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 5-17.4 Cancels 2nd Revised Page 5-17.4

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(R) Expanded Interconnection (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 5-17.5 Cancels 5th Revised Page 5-17.5

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(R) Expanded Interconnection (Cont'd)

(3) SONET-Based Interconnection (SBI) (S) │ The interconnector must specify the Telephone Company │ central office desired for SBI on the application │ form. The Telephone Company will provide the │ interconnector a quotation of applicable nonrecurring │ charges. If the Telephone Company determines it │ cannot provision the SBI arrangement within the │ provisioning interval, the Telephone Company will │ negotiate an interval with the interconnector, not to │ exceed sixty days, unless there are circumstances │ beyond the Telephone Company's control which prevent │ it from doing so. │ │ Receipt of the SBI application form(s), the │ engineering design charge and 50% of the nonrecurring │ charges for installation will determine the order of │ priority (i.e., first come-first served-basis) of │ interconnectors' requests. Upon completion of the │ Telephone Company's portion of the SBI application, │ the Telephone Company will provide the interconnector │ with an SBI Work Completion Form which will contain │ point of termination address information required to │ order an interconnection cross connect. │ │ The interconnector will provide remote monitoring and │ control as described in Section 30. │ │ The interconnector may specify a maximum of two single │ mode dielectric fiber optic cables per wire center. │ The interconnector shall specify the number of fibers │ in each cable and the number of riser tails needed to │ splice all fibers provided at the time of │ installation. │ │ The interconnector must also specify the number and │ type of interconnection cross connects desired for the interconnection of the arrangement dedicated by the Telephone Company for their exclusive use.

Reissued material is filed under authority of Special Permission No. 95-930 of the F.C.C and is deferred to August 31, 1995.

(This page filed under Transmittal No. 2486 )

Issued: July 27, 1995 Effective: July 27, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 5-17.6 Cancels 5th Revised Page 5-17.6

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(R) Expanded Interconnection (Cont'd)

(3) SONET-Based Interconnection (SBI) (Cont'd) (S) │ For the interconnection cross connect specified in │ 30.6 (Rate Regulations), an order is limited to a │ single point of termination address. The │ interconnector must identify each interconnection │ cross connect as either switched, special or shared │ use. When ordering the interconnection cross connect │ to be provided as switched or shared use, the │ interconnector must specify the number of channels to │ be used for switched services. │ │ When ordering the interconnection cross connect, the │ interconnector must specify the existing Telephone │ Company-provided tariffed service or switched │ transport connection that connects to its │ interconnection cross connect. The frame address │ information (e.g., floor, aisle, bay, panel and jack │ and which is contained in the SBI Work Completion │ Form) must also be specified on the Access Order. The │ Telephone Company-provided service or switched │ transport connection so specified may be either an │ existing or new circuit. If new, it must be ordered │ at the same time as the interconnection cross connect. │ │ Access Order Charges, as set forth in 5.4 (Access Order Charges) will apply to orders for Interconnection Cross Connects.

Reissued material is filed under authority of Special Permission No. 95-930 of the F.C.C and is deferred to August 31, 1995.

(This page filed under Transmittal No. 2486 )

Issued: July 27, 1995 Effective: July 27, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 14th Revised Page 5-17.7 Cancels 13th Revised Page 5-17.7

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(S) TIPToP Service

The TIPToP customer shall specify the number of one-way and two-way port interfaces and the access tandem where the service is desired. The minimum initial order quantity must match the quantity as defined in Section 44.1(B)1(h). Subsequent orders for port interfaces must use existing facilities when spare capacity is available on those facilities.

When choke trunks are required to a separate choke tandem, the quantity of port interfaces required will be determined by the TIPToP customer using the table in Section 44.1(B)1(e).

TIPToP one-way and two-way port interfaces require the (C) TIPToP customer to provide a minimum of one Local Routing Number (LRN)per LATA prior to provisioning of the customer’s order. Changes to any order to update LRNs associated with that order will incur applicable access order modification charges as defined in Section 5.3.2. LRNs associated with other services cannot be used for the TIPToP service. (C)

The TIPToP customer must provide an Access Carrier Name Abbreviation (ACNA).

The TIPToP Customer must provide the Access Customer Terminal Location (ACTL) and the Common Language Location Identifier (CLLI) for every IP Gateway and every Customer’s IP-VIS Dedicated location used in conjunction with TIPToP service in each LATA where service is ordered.

The TIPToP Customer must identify all NPA-NXXs for which they are the code owner at the time of order. Subsequent acquisitions of NPA-NXXs must be reported to the Telephone Company within thirty (30) days of acquisition.

(T) Telecommunications Relay Interconnection Service (TRIS)

For TRIS, the TRS provider must specify the TRS designated premises, the digital access tandem, the network channel and network channel interface code, and the number of trunks.

(This page filed under Transmittal No. 3096 )

Issued: September 19, 2005 Effective: October 4, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 5-17.8 Cancels 7th Revised Page 5-17.8

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(U) Multiple 64 Clear Channel Capability (64 CCC) (T)

In addition, the customer must specify one of three trunk allocation schemes: fixed, floating or flexible. In the fixed allocation scheme, the FGD or BSA-D trunks selected for a Multiple 64 CCC call are contiguous and the first FGD or BSA-D trunk is constrained to certain fixed starting points. In the floating allocation scheme, the FGD or BSA- D trunks selected for a Multiple 64 CCC call are contiguous, but the position of the first trunk can float. For the flexible allocation scheme, the FGD or BSA-D trunks selected for a Multiple 64 CCC call may occupy non- contiguous positions within a group of 24 FGD or BSA-D trunks.

Customers may segregate their originating and terminating Multiple 64 CCC traffic by specifying dedicated Multiple 64 CCC trunk group(s) on the order. A Multiple 64 CCC trunk group(s) represents access capacity for carrying only Multiple 64 CCC traffic.

(V) Advanced Carrier Identification Service (ACIS)

The customer must have LATA-wide Switched Access in order to receive originating ACIS routed traffic. The customer must specify the:

- LATAs from which they wish to receive originating ACIS calls, - the ACIS Access Code(s) to be activated in a given LATA, - the Carrier Identification Code (CIC) of each ACIS Code in a given LATA, and - the desired due date of the order.

Originating ACIS routed calls from LATAs in which the customer has not ordered ACIS will be blocked.

Originating traffic that is to be routed using ACIS may be combined with FGB, FGD, BSA-B, or BSA-D Switched Access Service. The customer shall designate which FGB, FGD, BSA- B, or BSA-D Switched Access Service trunk groups are to be associated with ACIS. However, when FGD or BSA-D Switched Access Service becomes available in an end office, ACIS traffic originating from that end office must be provided with FGD or BSA-D Switched Access Service.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 5-17.9 Cancels 4th Revised Page 5-17.9

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(V) Advanced Carrier Identification Service (ACIS) (Cont'd)

Direct-Trunked Transport will be available from end offices equipped to provide the ACIS functionality. All originating traffic to be routed using ACIS from end offices not equipped to provide the ACIS functionality will require routing to an access tandem where the function is available. When the ACIS functionality is located at an access tandem, the customer must utilize a Tandem-Switched Transport Facility. Information regarding the availability of ACIS will be provided to customers who contact their Telephone Company Account Manager, Access Service Center (ASC) or Business Service Center (BSC).

(W) (D)

(D)

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 5-17.10 Cancels 5th Revised Page 5-17.10

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(W) (D)

(D)

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 5-17.11 Cancels 2nd Revised Page 5-17.11

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(X) ReliaNet Service

For all ReliaNet services, the customer must specify:

(1) Type of access connection(s) desired [e.g., Master Access Connection (MAC), Auxiliary Connection (AC), etc.] (2) Bandwidth required on the MAC (Sonet Volume Option (SVO) 3, 6, 12, 24, etc.) (3) Desired customer premises location(s) for each MAC and Auxiliary Connection, as required. (4) Association between each MAC with specific AC. (5) If AC is not ordered directly by the MAC customer of (N) record, the ordering customer must have a Letter of │ Agency from that MAC customer granting permission to │ utilize the ReliaNet network. │ (6) Association between MAC and associated second MAC. (N) (7) Quantity and type of interface (ports) required for (T) each MAC or AC in terms of DS1, DS3, EC-1, OC3, OC3c or OC12, etc., access ports. (8) Capacity for the MAC to MAC Connection in quantities (N) of EC-1s. Each EC-1 must be specified as either DS3 │ or VT1.5 structure. │ (9) Capacity for the AC to AC Connection in quantities of │ EC-1s. Each EC-1 must be specified as either DS3 or VT1.5 structure. (10) Minimum Period desired for each ReliaNet rate element.

The customer's serving wire centers that are located on the inter-office network are found in National Exchange Carrier Association (NECA) Inc. Tariff F.C.C. No. 4. If the customer's serving wire center is not located on the inter- office network, the customer will order an Off-Net Auxiliary Connection. In addition to the Off-Net AC rate element, the customer will also be required to purchase inter-office mileage from his serving wire center to the nearest appropriate inter-office network node (as determined by the Telephone Company). This mileage will be purchased from the appropriate Special Access service tariff from which the baseline service would normally be ordered (e.g., Voice Grade, MegaLink Data, High Capacity, or MegaLink Custom service - Sections 7.3.4, 7.3.9, 7.3.10 and 20.1, respectively).

If ReliaNet services are exempt from the Special Access Surcharge, as described in 7.2.5 (Surcharge for Special Access Service), the customer shall furnish the required certification when placing the access order.

(This page filed under Transmittal No. 2628 )

Issued: April 14, 1997 Effective: May 29, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 5-17.12 Cancels 12th Revised Page 5-17.12

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd) 5.2.2 Ordering Requirements (Cont'd) (Y) Service Provider Number Portability

Service Provider Number Portability (SPNP) Service is provided in conjunction with CCS/SS7 Interconnection Service, as set forth in Section 23 (Common Channel Signaling/Signaling System 7). In order to utilize the SPNP Service, the customer must have CCS/SS7 Interconnection Service to the two Telephone Company Signaling Transfer Points (STPs) designated by the Telephone Company as the interconnecting STP pair to be utilized for interconnection to the CCS/SS7 network. The Telephone Company's STP locations are provided in the National Exchange Carriers Association, Inc. Tariff F.C.C. No. 4.

The customer must provide initial estimates of total annual call volume, including busy hour query volume. The Telephone Company will utilize this forecast in its own efforts to project further facility requirements.

(Z) Shared Network Arrangement(1) (N)

A Shared Network Arrangement is a service offering that enables a customer (the “Service User”) to connect subtending services to the multiplexed service of another customer (the “Host Subscriber”), with the Telephone Company maintaining separate records and billing for each. Each customer will be billed for those rate elements associated with their own portion of the service configuration. Under no circumstances will the rates or charges for individual rate elements be split. This offering is limited to service configurations

where a Service User obtains subtending circuits from a Host’s multiplexed service.

Under the Shared Network Arrangement, the Telephone Company may share record information with the Host Subscriber pertaining to the services of other users of the shared network. Such disclosure will be under the sole discretion of the Telephone Company as is necessary to perform billing reconciliations and/or functions required in connection

with maintaining account records.

(1) This regulation only applies to customers purchasing Shared Network Arrangement after 05/26/06.

(N) (This page filed under Transmittal No. 3131 )

Issued: May 11, 2006 Effective: May 26, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 5-17.13 Cancels Original Page 5-17.13

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(Z) Shared Network Arrangement(1) (Cont’d)

(1) Establishing a Shared Network Arrangement

When establishing Special Access Service or Switched Access Service under a Shared Network Arrangement, the Host Subscriber and the Service User must coordinate with each other the design, testing and maintenance of the service; additionally, the Service User must provide to the Telephone Company the Connecting Facility Assignment (CFA) and the High Capacity Billing Account Number (HBAN) of the Host Subscriber. The Telephone (D) Company will undertake to connect the Service User's circuits to the Host’s service, and to establish and maintain separate billing for the Service User's portion of the service. Additionally, the Service User must: (C) (i) obtain a letter of authorization for the Shared Network Arrangement from the Host Subscriber, and (ii) provide a written copy of the letter of authorization to the Telephone Company if a dispute arises with respect to the authorization for the applicable Services. (C)

(a) Cascading Shared Network Arrangement

In the event that the Service User is requesting a subtending circuit from a Host Shared Network Arrangement with a third-party Host (a Cascading Shared Network Arrangement), the Service User must also obtain and provide to the Telephone Company the appropriate HBAN and CFA of the third-party Host, in order to identify the complete circuit for purposes of maintenance and testing continuity. In a Cascading Shared Network Arrangement, it is the third-party Host’s responsibility to notify the Host Subscriber of the Cascading Service User and provide them with the Cascading Service User contact information prior to the third-party Host’s Shared Network Arrangement with the Cascading Service User.

The Service User (including a Cascading Service User) will have Special Access Service under the Shared Network Arrangement, as long as (1) the applicable letter of authorization establishing the Service User’s rights to participate in the Shared Network Arrangement has not been withdrawn by the Host Subscriber (or third-party Host), and (2) the Host Subscriber maintains the Shared Network Arrangement.

(1) This regulation only applies to Customers purchasing Shared Network (T) Arrangement after 05/26/06.

(This page filed under Transmittal No. 3305 )

Issued: September 1, 2010 Effective: September 16, 2010

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 5-17.14

ACCESS SERVICE

5. Ordering for Access Service (Cont'd) (N) 5.2 Access Order (Cont'd)

5.2.2 Ordering Requirements (Cont'd)

(1) (Z) Shared Network Arrangement (Cont’d)

(2) Disconnects and Modifications of the Shared Network Arrangement

The Host Subscriber of the Shared Network Arrangement can disconnect or modify (groom) the Shared Network Arrangement by following the steps outlined in 5.2.2(Z)(2)(a), below.

(a) Disconnects of SNA

The Host Subscriber can disconnect the Shared Network Arrangement and the Special Access Service Access Services under Shared Network Arrangement, but only if the following requirements are met:

(1) Written notification is provided to all Service Users (including Cascading Service Users) at least 30 days prior to the Host Subscriber issuing the Access Service Request for the disconnection of service; and

(2) The Telephone Company has been provided a copy of all Service User notifications.

The Service User (including a Cascading Service User) shall submit a request to disconnect their Special Access Service in accordance with the Host Subscriber’s (or third-party Host’s) written notification. However, if any Service User does not submit a request to disconnect their Special Access Service under the Shared Network Arrangement within 30 days of receiving such notification, the Service User grants the Host Subscriber the right to disconnect the Service User’s Special Access Service in accordance with the written notification, and the Telephone Company will have no liability to the Service User as a result of such disconnection.

Billing for services and facilities will continue until a disconnect request(s) for the Special Access Services has been processed by the Telephone Company.

(1) This regulation only applies to customers purchasing Shared Network (N) Arrangement after 05/26/06.

(This page filed under Transmittal No. 3131 )

Issued: May 11, 2006 Effective: May 26, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 5-17.15

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd) (N) 5.2.2 Ordering Requirements (Cont'd)

(Z) Shared Network Arrangement(1) (Cont’d)

(2) Disconnects and Modifications of the Shared Network

Arrangement (Cont’d)

(a) Disconnects of SNA (Cont’d)

The Service User (including a Cascading Service

User) is responsible for any applicable early termination fees associated with the disconnection of its Special Access Service under the discontinued Shared Network Arrangement.

(b) Grooming Special Access Service under SNA

The Host Subscriber can modify (groom) Special Access Services under a SNA, but only if the following requirements are met:

(1) Written notification is provided to all Service Users (including a Cascading Service User) 30 days prior to issuing the Access Service Request for the modification; and

(2) The Telephone Company is provided a copy of all Service User notifications.

The Service User (including a Cascading Service User) shall submit a request to modify (groom) its Special Access Service in accordance with the Host Subscriber’s written notification. However, if any Service User does not submit a request to groom their Special Access Service under the Shared Network Arrangement within 30 days of receiving such notification, the Service User grants the Host Subscriber the right to issue the order for the grooming in accordance with the written notification, and the Telephone Company will have no liability to the Service User as a result of such orders. The Service User will be responsible for all Telephone Company fees and charges, including changes to the Service User’s recurring charges resulting from the Host Subscriber’s modification to the Shared Network Arrangement.

(1) This regulation only applies to customers purchasing Shared Network Arrangement after 05/26/06. (N)

(This page filed under Transmittal No. 3131 )

Issued: May 11, 2006 Effective: May 26, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 5-18 Cancels 12th Revised Page 5-18

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.3 Service Provisioning Intervals

The time required to provision the service (i.e., the period between the application date and the service date) is known as the service interval. Such intervals will be established in accordance with published interval guidelines and where possible, will reflect the customer's requested service date.

Schedules that specify installation intervals will also specify the services and quantities of the services that can be provided as specified in Section 5.2.3.1(B) and (C). The Telephone Company will adhere to the intervals as specified in Section 5.3.2(C)(1), except during circumstances beyond its direct control (i.e., acts of God, governmental requirements, work stoppages and civil commotions). Standard Intervals only apply when facilities and equipment are available. (N) (N) A schedule of intervals applicable for Expanded Interconnection is located in the Telephone Company's Technical Publication for Expanded Interconnection. The Telephone Company's intervals for equipment are subject to equipment availability from the manufacturer and the published intervals will be adhered to except:

- during circumstances beyond its direct control (i.e., acts of God, governmental requirements, work stoppages and civil commotions) and - when an interconnector designates equipment that is not used by the Telephone Company to provision its other access services and the Telephone Company must, therefore, first obtain training regarding the installation, maintenance and administration of the equipment designated as well as obtain the equipment itself.

Access Services will be installed during Telephone Company business days. If a customer requests that installation be done outside of normally scheduled work hours, and the Telephone Company agrees to this request, the customer will be subject to applicable charges described in 13.2 (Additional Labor).

(This page filed under Transmittal No. 2970 )

Issued: November 5, 2003 Effective: November 20, 2003

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 5-18.1 Cancels 7th Revised Page 5-18.1

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.3.1 Negotiated Interval

The Telephone Company will negotiate a service date interval with the customer when:

(A) There is no standard interval for the service, or

(B) The quantity of Access Services ordered exceeds the quantities specified in Section 5.3.2(C)(1), or

(C) The customer requests a service date beyond the applicable standard interval service date.

Standard Intervals Analog/Voice Grade/DS0 10 days DS1/Megalink Data (128, 256, 384, 512, 768 kbps)(3) 5 days (N) DS3 7 days(1) (2)

The Telephone Company will offer a service date based on the type and quantity of Access Services the customer has requested. The negotiated interval may not exceed by more than six months the standard interval service date, or, when there is no standard interval, the Telephone Company offered service date.

(1) Interval only applies where facilities and equipment exist. When facilities and equipment do not exist the interval is dependent upon the complete installation of new facilities and equipment.

(2) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(3) Effective October 27, 2016, MegaLink Data Service 128.0, 256.0, 384.0, (N) 512.0 and 768.0 Kbps channels are limited to existing Customers for existing service arrangements; no new or additional term commitments of any kind, including any otherwise available renewals, will be available; and no move, add, or change orders will be accepted. (N)

(This page filed under Transmittal No. 3436 )

Issued: October 12, 2016 Effective: October 27, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 5-19 Cancels 4th Revised Page 5-19

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.4 Selection of Facilities for Access Orders

When there are analog or digital high capacity facilities to the Customer's serving wire center for Switched Access, to a hub for (T) Special Access, MegaLink Custom Services or STN(s), or when there are digital high capacity facilities to an interconnecting STP or(C) FSPOI for CCS/SS7 Interconnection Service, the Customer must (C) specify a channel assignment for each service ordered. In addition, when a Customer requests a Service Facility Move (SFM) (T) or Reconfiguration, the Connecting Facility Assignments (CFAs) or specific point of termination (for interconnection cross connects) must be specified for the facilities involved in the SFM or Reconfiguration for each service. The Customer will (T) provide this information to the Telephone Company/Interconnector during the order process.

For all other access orders, the option to request a specific transmission path or channel is not provided except as described in Section 27. (D)

(This page filed under Transmittal No. 3415 )

Issued: October 13, 2015 Effective: October 28, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 5-20 Cancels 8th Revised Page 5-20

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.5 Shared Use

Shared Use is the provision of Switched Access and Special Access services over the same DS1- or DS3-level transmission path through the use of a common interface. Shared use to a hub is allowed for the following access services: Switched Access and Special Access High Capacity Services, Switched Access and MegaLink Custom Services and Switched Access and STN Services. (1) (D) Individual services using a shared use facility must be ordered as either Switched Access Service, Special Access High Capacity Service, MegaLink Custom Service, STN or Common Channel Signaling/Signaling System 7 (CCS/SS7) Interconnection Service. In addition, when shared use is provided on an interconnection cross connect, the customer/interconnector must specify the number of channels that will be interconnected to Switched Access.

When placing an order for the individual service(s), the customer must specify a channel assignment for each service ordered. In addition, when a customer/interconnector requests an SFM or Reconfiguration, the Connecting Facility Assignments (CFAs) must be specified for the facilities involved in the SFM or Reconfiguration for each service.

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated

with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 5-21 Cancels Original Page 5-21

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.2 Access Order (Cont'd)

5.2.6 Provision of Other Services

(A) Testing Service, Additional Labor, Telecommunications Service Priority and Special Facilities Routing

Testing Service, Additional Labor and Telecommunications (T) Service Priority may be ordered with an access order (T) concurrent with the associated Access Services. Alternatively, with the agreement of the Telephone Company, Testing Service, Additional Labor, Telecommunications Service Priority and Special Facilities Routing may subsequently be added to the access order at any time, up to and including the service date for the Access Service. When added subsequently, Design Change Charges described in 5.3.2(A) (Design Change Charges) may apply.

In addition to the rates and charges specified in this tariff for Testing Service, Additional Labor, Telecommunications Service Priority and Special Facilities Routing, rates and charges for the associated Access Services and ordering charges contained in this section will also apply.

(This page filed under Transmittal No. 2572 )

Issued: August 30, 1996 Effective: October 14, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 5-22

ACCESS SERVICE

(M) 5. Ordering for Access Service (Cont'd) (M) 5.2 Access Order (Cont'd) (T) 5.2.6 Provision of Other Services (Cont'd) │ │ (B) Additional Engineering │ │ Additional Engineering is not an ordering option but will (T) be applied to an access order when the Telephone Company (M) determines additional engineering is necessary to (M) accommodate a customer request. Additional engineering (T) will only be required as specified in 13.1 (Additional │ Engineering). When additional engineering is required, the │ customer will be notified and furnished with a written (T) statement setting forth the justification for the (M) additional engineering as well as an estimate of the │ charges. If the customer agrees to the additional (M) engineering, a firm order will be established. If, after (T) being notified that additional engineering of Telephone │ Company facilities is required, the customer does not want │ the service or facilities, the order will be withdrawn and (T) no charges will apply. Once a firm order has been (M) established, the total charge to the customer for the │ additional engineering may not exceed the estimated amount (M) by more than 10%. (T) The regulations for Additional Engineering as specified in │ 13.1 (Additional Engineering) and the rates and charges as │ specified in 13.4 (Rates and Charges) are in addition to (T) the regulations, rates and charges specified in this (M) section. (T) (C) Special Construction (M) The regulations, rates and charges for special construction (T) are contained in Southwestern Bell Tariff F.C.C. No. 69 (T) (Special Construction) and are in addition to the regulations, rates and charges specified in this tariff.

Material and revised material appearing on this page formerly appeared on 3rd Revised Page 97.1 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 5-23 Cancels 12th Revised Page 5-23

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations

5.3.1 Access Order Charges

(A) An Access Order Charge applies, per access order, for the installation, addition, change, rearrangement or move of Access Services provided in this tariff (in addition to other applicable Access Service tariff charges) with the following exceptions:

- Nonchargeable administrative changes where so specified in this tariff; - Access order modifications as specified in 5.3.2 (Access Order Modification Charges); - Initial or subsequent activation of NXX's for 900 Access Service; - Establishment of 0+900 Access Service; - Complete or partial disconnection of Access Services and/or features (except when a Carrier Identification Code (CIC) is deleted); - Upgrades from FGA or FGB service to FGD service and upgrades from BSA-A or BSA-B service to BSA-D service; - Revocation or discontinuance of Telecommunications Service Priority System; - Installation, modification or rearrangement of MicroLink II(1) Service or features; - Conversions during the transition period of FGA to BSA-A, FGB to BSA-B, and FGD to BSA-D; - Change of Access Services Bill Period; - As specified in 6.8.2(D)(7), following; and (D) - (2) - When additional Access Orders are required as set forth in Section 5.2.1(A) preceding, for establishment of, removal of, or changes to multiple Carrier Identification Codes and are submitted at the same time, with the same due date, for the same central office and the same trunk group. In such cases only one Access Order Charge shall apply for the group of orders.

(B) An Access Order Charge applies per access order for the addition, change, or rearrangement of the WATS Access Line features, specified in 6.9 (Rates and Charges), when such features are requested subsequent to the installation of the WATS Access Line.

(1) As of October 6, 2004, MicroLink II service utilizing the X.75 protocol is obsolete and limited to existing installations, at existing locations, for existing customers (2) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 5-24 Cancels 2nd Revised Page 5-24

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.1 Access Order Charges (Cont'd)

(C) An Access Order Charge will also apply per access order when a customer elects to have existing Special Access Services billed under an Optional Payment Plan, elects to terminate an Optional Payment Plan and revert to monthly billing or elects to increase the minimum monthly revenue commitment, as specified in 7.2.19 (Optional Payment Plan).

(D) An Access Order Charge will apply per order for access order (T) cancellations as specified in 5.3.3.

(E) Access Order Charges are specified in 5.4 (Rates and Charges).

(This page filed under Transmittal No. 2994 )

Issued: April 26, 2004 Effective: May 11, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 5-25 Cancels 12th Revised Page 5-25

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.2 Access Order Modification Charges

The customer may request a modification of its access order at any time prior to the service date or notification by the Telephone Company that service is available for the customer's use, whichever is later. The Telephone Company will make every effort to accommodate a requested modification when it is able to do so during normal business hours with the normal work force assigned to complete such an order. If the modification cannot be made with the normal work force during normal business hours, the Telephone Company will notify the customer. If the customer still desires the access order modification, the Telephone Company will schedule a new service date. All charges for access order modifications will apply on a per occurrence basis.

The following will be treated as a new access order (for the increased amount only) when any increase occurs in the number of:

- Special Access Service channels; - MegaLink Custom Service channels; - Switched Access Service lines, trunks, DNAL channels, Switched Transport channels or Directory Transport channels; (C) - MicroLink II Service Access Terminations;(1) - STN additional DTLs or Access Nodes; - CCS/SS7 STP port terminations; - LIDB OPCs; or - Expanded Interconnection entrance cables, basic arrangements, conversion arrangements, arrays, termination cards, interconnection cross connects and switched transport connections; or - ReliaNet MACs or ACs.

For STN or ReliaNet service, an increase in DTL or SONET Volume Option (SVO), respectively, will be treated as a new access order and the pending access order will be cancelled as specified in 5.3.3.1.

(N) (N) (1) As of October 6, 2004, MicroLink II service utilizing the X.75 protocol is (N) obsolete and limited to existing installations, at existing locations, for existing customers.

(This page filed under Transmittal No. 3008 )

Issued: September 21, 2004 Effective: October 6, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 5-26 Cancels 1st Revised Page 5-26

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.2 Access Order Modification Charges (Cont'd)

If the Telephone Company specifies that order modifications are necessary to satisfy the transmission performance for a Special Access Service ordered by a customer (e.g., the upgrading by the Telephone Company of the channel termination from effective two- wire to effective four-wire) and the customer authorizes the suggested order modifications, these changes will be made without order modification charges being incurred by the customer. However, charges for the Special Access Service provided to the customer will apply.

Rate regulations for access order modification charges are specified following.

(A) Design Change Charge

The customer may request a design change to the service ordered. A design change is any change to an access order which requires engineering review. An engineering review is a review by Telephone Company personnel of the service ordered and the requested changes to determine what changes in the design, if any, are necessary to meet the changes requested by the customer. Design changes to a pending order include such things as the addition or deletion of Switched Access features or Basic Service Elements (BSEs), Special Access or MegaLink Custom Services optional features, BSEs or functions, change in the type of transport termination (Switched Access only), type of channel interface, type of interface group or technical specification package, changes to STN optional features and functions or a change of NAP on DTL specified in the original order.

A design change also includes changes to an Expanded Interconnection arrangement.

This filing is made, under protest, in compliance with the Memorandum Opinion and Order of the F.C.C. released July 25, 1994 in CC Docket 91-141.

(This page filed under Transmittal No. 2383 )

Issued: September 1, 1994 Effective: December 15, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 5-27 Cancels 8th Revised Page 5-27

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.2 Access Order Modification Charges (Cont'd)

(A) Design Change Charge (Cont'd)

Design changes do not include a change of customer premises, end user premises, end office switch, feature group type or basic serving arrangement, Switched Transport or Directory Transport channel type, Special Access or MegaLink Custom Service channel type, or type of MicroLink II Service access terminations(1). Changes of this nature will require the issuance of a new access order and the cancellation of the original access order with appropriate Cancellation Charges applied.

The Telephone Company will review the requested change and notify the customer whether the change is a design change, if it can be accommodated and if a new service date is required. If a change of service date is required, the Service Date Change Charge described in (B) following will also apply.

The Design Change Charge will apply on a per access order per occurrence basis, for each access order requiring a design change. Design Change Charges are specified in 5.4 (Rates and Charges).

Credit for Missed Installation on Confirmed Due Date as described in 2.5.5 (Missed Installation on Confirmed Due Date) does not apply to Design Change Charge.

(B) Service Date Change Charge/Dispatch Charge

A Customer may request a change in the access order service (C) date for the installation of new services or rearrangements of existing services provided the new service date is no more than 30 calendar days beyond the original service date. (C) When such a request is made, the Telephone Company will accordingly change the start of service and a Service Date (C) Change Charge will apply. The application date will not change as a result of a service date change.

If a design change has been requested as described in Section (T) 5.3.2(A), preceding, and the engineering review cannot be (T) completed within the 30 calendar day timeframe, the new service date may exceed the original service date by more than 30 calendar days. If a service date change is necessary to accommodate a customer requested design change, both the Service Date Change Charge and the Design Change Charge apply.

(1 As of October 6, 2004, MicroLink II service utilizing the X.75 protocol is obsolete and limited to existing installations, at existing locations, for existing customers.

(This page filed under Transmittal No. 3368 )

Issued: January 4, 2013 Effective: January 19, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 5-27.1

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.2 Access Order Modification Charges (Cont'd)

(B) Service Date Change Charge/Dispatch Charge (Cont’d)

(1) For services other than Megalink Data, High Capacity (N) DS1 and MegaLink Custom special access services: (N)

If a Customer does not accept Access Service within (C) 30 calendar days after the original service date, the order will be cancelled. Appropriate cancellation charges will be applied as set forth in Section 5.3.3(B). The Customer must issue a new (C) order specifying the desired service date if Access (M) Service is still required. (M)

(2) For Megalink Data, High Capacity DS1 and MegaLink (N) Custom special access services: (N)

If a Customer does not accept Access Service within (C) 30 calendar days after the original service date, the Customer will, at its option: (a) Cancel its Access Order, in which case Section 5.3.3(B) shall apply; or (b) Accept billing within 30 calendar days after the original service date, in which case billing will begin; or (c) Neither cancel the Access Order nor accept service, in which case the following will apply. If the Customer neither cancels the Access Order nor accepts service, all applicable service charges shall begin to accrue on the 31st calendar day after the original service date (the Effective Billing Date). If the Customer accepts service within 90 calendar days after the original service date, the Telephone Company will commence billing upon the Customer’s acceptance of service and such billing will apply as of the Effective Billing Date. If the Customer fails to accept service within 90 calendar days after the original service date, the Telephone Company will cancel the relevant Access Order(s) and will bill the Customer for cancellation charges, as set forth in 5.3.3(B), following, plus all charges accrued between the Effective Billing Date and the date of cancellation using the rate associated with the shortest term available for the service being cancelled. (C)

Some material on this page was previously located on 4th Revised Page 5-28. (This page filed under Transmittal No. 3368 )

Issued: January 4, 2013 Effective: January 19, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 5-28 Cancels 4th Revised Page 5-28

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.2 Access Order Modification Charges (Cont'd)

(B) Service Date Change Charge/Dispatch Charge (Cont'd)

(3) A new service date may be established that is prior (T) to the original service date if the Telephone Company determines it can accommodate the Customer's (T) request without delaying service dates for orders of other Customers. If the service date is changed to (T) an earlier date, and the Telephone Company determines that additional labor or extraordinary costs are necessary to meet the earlier service date requested by the Customer, the Customer will be (T) notified by the Telephone Company that an Expedited Order Charge, as specified in (C) following applies. The Expedited Order Charge is in addition to the Service Date Change Charge.

(4) Failure to notify, as noted below, the Telephone (T) Company prior to the original service date to request a different service date will result in the application of a Service Date Change Dispatch Charge for installation, moves and rearrangement of services. If a Telephone Company technician is dispatched to the Customer's premises on the (T) scheduled service date and the Customer is not (T) ready to accept service or the Customer has failed (T) to notify the Telephone Company before 3:00PM (CT) on the business day prior to the scheduled service date that the service date needs to be changed, a Service Date Change Dispatch Charge will apply.

If the Customer reschedules the service date, a (T) Service Date Change Charge, as set forth following will also apply. If the Customer cancels the (T) service date, cancellation charges will also apply in accordance with terms and conditions for cancellation charges as set forth in Section (T) 5.3.3, following. Cancellation of the order will not preclude the application of the Service Date Change Charge and/or the Service Date Change Dispatch Charge assessed for prior occurrences on the same order.

Some material previously on this page now appears on Original Page 5-27.1. (This page filed under Transmittal No. 3368 )

Issued: January 4, 2013 Effective: January 19, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 20th Revised Page 5-29 Cancels 19th Revised Page 5-29

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.2 Access Order Modification Charges (Cont'd)

(B) Service Date Change Charge/Dispatch Charge (Cont'd)

(4) (Cont’d)

A Service Date Change Charge is applicable on a per order per occurrence basis for each service date changed. A Service Date Change Dispatch Charge will apply per occurrence when a technician is dispatched to the Customer's premises and the Customer is not ready for service. Service Date Change Charges and Service Date Change Dispatch Charges are specified in Section 5.4. (D) Credit for Missed Installation on Confirmed Due Date, as described in Section 2.5.5, does not apply (D) to Service Date Change Charge.

(C) Expedite Charges

Analog (Metallic, Telegraph), DS0 (Megalink Data (2.4, 4.8, 9.6, 19.2, 56, 64 Kbps)), Entrance Facilities (Voice Grade, DS1, DS3), High Capacity DS1 (Megalink Data (128, 256, 384, 512, 768 Kbps))(2) Access Services (N) and MegaLink Custom Services (1)

If a Customer desires that service be provided on a due date earlier than the standard interval, the Customer may request that service be provided on an expedited service interval. To qualify for an expedited interval the Customer must provide End User premises access, where needed, until 11PM (CT), Monday-Friday.

When the Customer requests a 0-2 day expedite interval, on DS3, Analog (Metallic, Telegraph, Direct Analog), DS0 (Base Rate), DS1 128, 256, 384, 512, 768 Kbps, Entrance Facilities (Voice Grade, DS1, DS3) and DS1/DS3 Access Service, the request must be received by the Telephone Company by 8:30AM (CT), Monday-Friday. All 0-2 day expedite interval requests received after 8:30AM (CT) will reflect an application date of the next business day and the due date will also be changed to the next business day. Expedite charges will be determined by the interval between the application date and the expedite due date. APP day 0 does not begin until SBC verifies facilities or determines facilities are not in place.

If, upon reviewing availability of equipment, facilities and scheduled workload, the Telephone Company agrees to provide service on an expedited basis and the Customer accepts this proposal, an Expedite Order Charge (in case of Analog, DS0, Voice Grade/DS1 Entrance Facilities and High Capacity DS1 Access Services) or Expedite Circuit Charge (in case of DS3 Entrance Facilities and MegaLink Custom Services) will apply.

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the (T) forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook. (T)

(2) Effective October 27, 2016, MegaLink Data Service 128.0, 256.0, 384.0, 512.0 and 768.0 Kbps (N) channels are limited to existing Customers for existing service arrangements; no new or additional term commitments of any kind, including any otherwise available renewals, will be available; and no move, add, or change orders will be accepted. (N)

(This page filed under Transmittal No. 3436 )

Issued: October 12, 2016 Effective: October 27, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 20th Revised Page 5-30 Cancels 19th Revised Page 5-30

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.2 Access Order Modification Charges (Cont'd)

(C) Expedite Charges (Cont'd)

(1) Analog (Metallic, Telegraph), DS0 (Megalink Data (2.4, 4.8, 9.6, 19.2, 56, 64 Kbps)), Entrance Facilities (Voice Grade, DS1, DS3), High Capacity DS1 (Megalink Data (128, 256, 384, 512, 768 Kbps))(2) Access Services, and MegaLink (N) Custom Services (1) (Cont’d)

The maximum number of circuits, which may be expedited, is limited to twelve (12) two-point or six (6) multi-point Analog/DS0 circuits at the same location; a limit of nine (9) DS1 circuits at the same location; a limit of four (4) DS1 (Megalink Data (128, 256, 384, 512, 768 Kbps)) circuits at the same location; and a limit of two (2) DS3 circuit at the same location. (1) When the number of access circuits exceeds the maximum threshold the interval will be negotiated.

If the Telephone Company determines that service can be provided on an expedited basis, the following charges will apply based upon agreed upon expedited service interval. The Expedited Order Charge (in case of Analog, DS0, Voice Grade/DS1 Entrance Facilities and High Capacity DS1 Access Services) applies on a per order basis, regardless of the number of circuits on the order. The Expedited Circuit Charge (in case of DS3 Entrance Facilities, and MegaLink Custom Services (1)) applies on a per circuit basis.

Analog/Voice Grade/DS0 Access Services USOC Expedited Service Intervals Expedited Order Charge EODXN 9 days $375.00 EODXL 8 days $425.00 EODXJ 7 days $475.00 EODXG 6 days $525.00 EODXE 5 days $575.00 EODXC 4 days $625.00 EODXA 3 days $675.00 EODWR 2 days $1,500.00 EODWQ 1 days $2,000.00 EODWP 0 days $2,500.00 DS1/Megalink Data (128, 256, 384, 512, 768 Kbps) Access Services USOC Expedited Service Intervals Expedited Order Charge EODXR 4 days $625.00 EODXP 3 days $675.00 EODWO 2 days $1,500.00 EODWN 1 days $2,000.00 EODWM 0 days $2,500.00

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(2) Effective October 27, 2016, MegaLink Data Service 128.0, 256.0, 384.0, 512.0 and 768.0 Kbps (N) channels are limited to existing Customers for existing service arrangements; no new or additional term commitments of any kind, including any otherwise available renewals, will be available; and no move, add, or change orders will be accepted. (N) (This page filed under Transmittal No. 3436 )

Issued: October 12, 2016 Effective: October 27, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 5-30.1 Cancels 11th Revised Page 5-30.1

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.2 Access Order Modification Charges (Cont'd)

(C) Expedite Charges (Cont'd)

(1) Analog (Metallic, Telegraph), DS0 (Megalink Data (2.4, 4.8, 9.6, 19.2, 56, 64 Kbps)), Entrance Facilities (Voice Grade, DS1, DS3), High Capacity DS1 (Megalink Data (128, 256, 384, 512, 768 Kbps))(2) (N) Access Services and MegaLink Custom Services (1) (Cont’d)

MegaLink Custom Services USOC Expedited Service Intervals Expedited Circuit Charge EODWL 6 days $1,500.00 EODWK 5 days $2,000.00 EODWJ 4 days $2,500.00 EODWH 3 days $3,000.00 EODWG 2 days $3,500.00 EODWF 1 days $4,000.00 EODWE 0 days $4,500.00

(1)

(1)

(a) In addition to Expedited Order Charges or Expedite Circuit Charges, special construction charges may apply, if the Telephone Company determines that additional cost will be incurred.

(b) When the request for expediting occurs subsequent to the issuance of the Access Order, a Service Date Change Charge as specified in Section (T) 5.3.2(B), also applies. (T)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(1) Effective October 27, 2016, MegaLink Data Service 128.0, 256.0, 384.0, 512.0 and 768.0 Kbps (N) channels are limited to existing Customers for existing service arrangements; no new or additional term commitments of any kind, including any otherwise available renewals, will be available; and no move, add, or change orders will be accepted. (N) (This page filed under Transmittal No. 3436 )

Issued: October 12, 2016 Effective: October 27, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 5-30.1.1 Cancels 7th Revised Page 5-30.1.1

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.2 Access Order Modification Charges (Cont'd)

(C) Expedite Charges (Cont'd)

(1) Analog (Metallic, Telegraph), DS0 (Megalink Data (2.4, 4.8, 9.6, 19.2, 56, 64 Kbps)), Entrance Facilities (Voice Grade, DS1, DS3), High Capacity DS1 (Megalink Data (128, 256, 384, 512, 768 Kbps))(2) (N) Access Services, and MegaLink Custom Services (1) (Cont’d)

(c) If the Telephone Company is subsequently unable to meet an agreed upon expedited service date, no Expedite Order Charge or Expedite Circuit Charge will apply, unless the missed service date was caused by the customer.

(d) The Telephone Company will adhere to the expedite intervals as specified above, except during circumstances beyond its direct control (i.e., acts of God, governmental requirements, work stoppages and civil commotions).

(2) For all Access Services, excluding Analog (Metallic, Telegraph), DS0 (Megalink Data (2.4, 4.8, 9.6, 19.2, 56, 64 Kbps), DovLink), Entrance Facilities (Voice Grade, DS1, DS3), High Capacity DS1 (Megalink Data (128, 256, 384, 512, 768 Kbps)) Access Services and MegaLink Custom Services (1)

If the customer desires that service be provided on an earlier date than that which has been established for the access order or the provision of the Access Service, the customer may request that service be provided on an expedited basis. If the Telephone Company determines that service can be provided on the requested date and that additional labor costs or extraordinary costs are required to meet the requested service date, the customer will be notified and will be provided with an estimate of the additional charges involved. The total charge to the customer for the Additional Engineering may not exceed the estimated amount by more than 10%. If the customer instructs the Telephone Company to proceed, such additional charges will be determined and billed to the customer as follows:

To calculate the additional labor charges, the Telephone Company will, upon authorization from the customer to incur the additional labor charges, keep track of the additional labor hours used to meet the request of the customer and will bill the customer at the applicable additional labor charges as set forth in Section 13.4. (T)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(1) Effective October 27, 2016, MegaLink Data Service 128.0, 256.0, 384.0, 512.0 and 768.0 Kbps (N) channels are limited to existing Customers for existing service arrangements; no new or additional term commitments of any kind, including any otherwise available renewals, will be available; and no move, add, or change orders will be accepted. (N) (This page filed under Transmittal No. 3436 )

Issued: October 12, 2016 Effective: October 27, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 5-30.2 Cancels 11th Revised Page 5-30.2

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.2 Access Order Modification Charges (Cont'd)

(C) Expedite Charges (Cont'd)

(2) For all Access Services, excluding Analog (Metallic, Telegraph), DS0 (Megalink Data), Entrance Facilities (D) (Voice Grade, DS1, DS3), High Capacity DS1 Access Services and MegaLink Custom Services (2) (Cont’d)

(a) Extraordinary Costs: The special construction terms and conditions specified in Southwestern Bell Tariff F.C.C. No. 69 will be used by the Telephone Company to determine charges to recover the extraordinary costs which may be involved. Authorization to incur the costs and to bill the customer will be in accordance with the terms and conditions of Southwestern Bell Tariff F.C.C. No. 69.

(b) When the request for expediting occurs subsequent to the issuance of the access order, a Service Date Change Charge as specified in (B) preceding also applies.

(c) If the Telephone Company is subsequently unable to meet an agreed upon expedited service date, no Expedite Order Charge or Expedite Circuit Charge will apply, unless the missed service date was caused by the customer.

(d) The Telephone Company will adhere to customer requested expedites approved by the Telephone Company, except during circumstances beyond its direct control (i.e., acts of God, governmental requirements, work stoppages and civil commotions).

(D) Partial Cancellation Charge

Any decrease in the number of the following Access Services or Arrangements ordered will be treated as a partial cancellation and the charges described in 5.3.3, will apply.

- CCS/SS7 STP port terminations

- LIDB OPCs

- MicroLink II Service access terminations(1)

- Switched Access Service lines, trunks, DNAL channels, Switched Transport channels or Directory Transport channels

(1) As of October 6, 2004, MicroLink II service utilizing the X.75 protocol is obsolete and limited to existing installations, at existing locations, for existing customers. (2) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 5-31 Cancels 9th Revised Page 5-31

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.3 Access Order Cancellation Charges (excluding the following Special Access Services: Self-healing Transport Network (STN) and ReliaNet) (T)

(A) Cancellation of an Access Order

A Customer may cancel an access order at any time prior to (1) the service date or (2) notification by the Telephone Company that service is available for the Customer's use, whichever is later. The cancellation date is the date the Telephone Company receives written or verbal notice from the Customer that the order is to be cancelled. The verbal notice must be followed by written confirmation within 10 days. Termination liability charges, associated with term plans, will not apply to orders that are cancelled within 90 calendar days after the original service date where the Customer has accepted billing but not accepted service.

(B) When Cancellation Charges Apply

When the Customer cancels an Access Order, a Cancellation Charge will apply.

Cancellation charges are calculated by multiplying the nonrecurring charges (NRC) associated with the shortest term available for the service being cancelled, by the applicable critical date percentage shown in the Table of Cancellation Charge Percentages, following, for the critical date last completed on the order, plus:

1. The Access Order Charge 2. Other charges specified in Section 5.3.2 (Access Order Modification Charges), if applicable.

Example

If a Customer submits an order to install a new DS1 High Capacity service channel termination and then cancels the order after the Design, Verified, and Assigned (DVA) critical date, but before the Wired and Office Tested (WOT) critical date, the cancellation charge will be calculated as follows:

Cancellation Charge = 55.7% (from the Table of Cancellation Charge Percentages, following) X Non-Recurring installation charge for one channel termination.

The Access Order Charge and other charges specified in Section 5.3.2 (Access Order Modification Charges), if applicable, are added to the cancellation charge.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 5-31.1 Cancels Original Page 5-31.1

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.3 Access Order Cancellation Charges (excluding the following Special Access Services: Self-healing Transport Network (STN) and ReliaNet) (Cont’d) (T)

(B) When Cancellation Charges Apply (Cont’d)

The critical dates tracked by the Telephone Company are as follows:

• Application (APP) Date: The date by which the Customer must provide to the Telephone Company both (1) a firm commitment for service and (2) sufficient information to enable the Telephone Company to begin service provisioning. This is also the order date.

• Scheduled Issue Date (SID): The date that the order is entered into the Telephone Company's order distribution system.

• Loop Assignment and Make-up (LAM) Date: The date by which Local Loop Assignment and Make-up information is available.

• Engineering Information Report Date (EIRD): The date that the engineering information report for facilities and station equipment is received by the engineering control office (ECO).

• Design Layout Report Date (DLRD): The date the Design Layout Report is forwarded to the Customer.

• Records Issue Date (RID): The date that all design and assignment information is sent to the central office and installation forces.

• Designed, Verified, and Assigned (DVA) Date: The date by which field implementation groups report that all documents and materials have been received.

• Wired and Office Tested (WOT) Date: The date by which all intraoffice wiring is completed, all plug-ins optioned, aligned, and frame continuity established, and the interoffice facilities, if applicable, tested. In addition, switching equipment, including translation loading, is installed and tested.

• Frame Continuity Date (FCD): The date on which frame-to-frame testing is completed. This is sometimes referred to as the Facility Continuity Check Date.

• Plant Test Date (PTD): The date on which overall testing of the service is performed.

• Service Date (DD): The date on which service is made available to the Customer. This is sometimes referred to as the Due Date.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 5-31.2 Cancels 1st Revised Page 5-31.2

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.3 Access Order Cancellation Charges (excluding the following Special Access Services: Self-healing Transport Network (STN) and ReliaNet) (Cont’d)

(B) When Cancellation Charges Apply (Cont’d)

Table of Cancellation Charge Percentages

Critical Dates (Percentage of Total Provisioning Cost)

On or After: APP SID LAM EIRD DLRD RID DVA WOT FCD PTD DD

Before: SID LAM EIRD DLRD RID DVA WOT FCD PTD DD

Special Access Services

Metallic Service 1.6 4.9 6.9 9.8 13.5 18.2 30.3 39.7 53.6 83.3 100

Telegraph Service 1.6 4.8 8.9 13.6 17 22.2 34.7 43.9 56.9 84.6 100

Voice Grade Service 1.6 4.7 6.6 9.5 13.2 18.7 33.2 44.6 56.6 83.6 100 (D) Program Audio Service 1.4 4.1 5.8 8.3 11.5 16.2 28 37.1 49.5 80.5 100

Megalink Data Service 1.5 4.6 6.1 9.2 13.5 18.6 28.5 35.4 46.2 78.2 100 (D) High Capacity Service 12.9 29.2 33.1 35.5 37.5 42.9 55.7 66.2 69.9 86.2 100

Megalink Custom Service 12.9 29.2 33.1 35.5 37.5 42.9 55.7 66.2 69.9 86.2 100

Video 12.9 29.2 33.135.5 37.5 42.9 55.7 66.2 69.9 86.2 100

Switched Access Services

Trunks or Lines 7.0 18.9 23.7 24.9 26.3 35.6 51.4 58.3 69.4 90.3 100

High Capacity Service 12.9 29.2 33.1 35.5 37.5 42.9 55.7 66.2 69.9 86.2 100

All Other Special and Switched Access Services 12.9 29.2 33.1 35.5 37.5 42.9 55.7 66.2 69.9 86.2 100

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 5-32 Cancels 6th Revised Page 5-32

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.3 Access Order Cancellation Charges (excluding the following Special Access Services: (1) Self-healing Transport Network (STN) and (T) ReliaNet) (1) (Cont'd) (T)

(C) When Cancellation Charges Do Not Apply

(1) When a customer cancels an order for the discontinuance of service, no charges apply for the cancellation.

(2) When a customer cancels an access order prior to the application date, no charges apply for the cancellation.

(3) If the Telephone Company or the customer misses a service date by more than 30 days, due to circumstances over which it has no direct control (i.e., acts of God, governmental requirements, work stoppages and civil commotion’s), the customer may cancel the access order without incurring Cancellation Charges.

(4) If the Telephone Company misses a service date for daily rated Audio Service or daily rated Video Service, as provided in Section 7 (Special Access Service), the customer may cancel the access order without incurring Cancellation Charges.

5.3.3.1 Access Order Cancellation Charges (for the following Special Access Services: (1) Self-healing Transport Network (STN), ReliaNet(1)

Cancellation charges are applied based upon the type of special access service being cancelled which is categorized as either, 1) “point to point” service or 2) “non-point to point” service. However, at no time will cancellation charges apply until costs for installation of facilities have been incurred by the Telephone Company. Service installation costs incurred by the Telephone Company start on the application date, when the Telephone Company confirms the order with the customer.

Cancellation charges for “point to point” services are based upon the date that a customer cancels an Access Order with respect to the Design Layout Report Date (DLRD), of the service being provisioned, as described in Section 5.3.3.1(B)(2). The DLRD is the date the Design Layout Report (D) is forwarded to the customer. The DLRD is provided to the customer upon firm order confirmation.

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 5-33 Cancels 11th Revised Page 5-33

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.3.1 Access Order Cancellation Charges (for the following Special Access Services: (1) Self-healing Transport Network (STN) and (T) ReliaNet)(1)(Cont’d) (T)

The table below defines the product categories for “point to point” services pertaining to this section:

“Point to Point” Services Service Product Category/Type (1) (1) (1) (1) (1)

Cancellation charges for “non-point to point” services are applied based on actual costs incurred by the Telephone Company as described in Sections 5.3.3.1(A)(2) and (T) 5.3.3.1(B)(3)(b). The table below lists the “non-point to (D) point” services pertaining to this section:

“Non-Point to Point” Services Self-Healing Transport Network ReliaNet (1) (1) (1) (1)

(A) Cancellation of a letter of agreement

(1) When facilities must be constructed prior to the Telephone Company receipt of an Access Order (1), excluding special construction as described in F.C.C. No. 69, the customer will be required to submit a written letter of agreement to the Telephone Company which includes a maximum estimate as previously provided by the Telephone Company of the cancellation charges as defined at 5.3.3.1(A)(2). A customer may cancel a written letter of agreement.

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook. (This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 5-34 Cancels 5th Revised Page 5-34

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.3.1 Access Order Cancellation Charges (for the following Special Access Services: (1) Self-healing Transport Network (STN) and (T) ReliaNet)(1)(Cont’d) (T)

(A) Cancellation of a letter of agreement (Cont’d)

(1) (Cont’d)

The cancellation date is the date the Telephone Company receives written or verbal notice from the customer that the letter of agreement is to be cancelled. If verbal notice is given, it must be followed by written confirmation within 10 days or it shall be deemed to be void.

If a customer does not place an Access Order for the services within 30 days of receiving notification that the network is ready for the services ordered, the letter of agreement will be deemed cancelled.

(2) When a customer cancels a letter of agreement, cancellation charges will apply as follows:

(a) Installation of facilities is considered to have started when the Telephone Company incurs any cost in connection therewith or on preparation thereof which would not otherwise have been incurred.

(b) Where an Access Order has been issued, cancellation charges shall apply as indicated in Section 5.3.3.1(B). (D)

(c) Applicable letter of agreement cancellation charges will be calculated from the costs incurred by the Telephone Company at the time the letter of agreement is cancelled. The cancellation charge equals:

(i) Non-recoverable cost of equipment and material ordered, provided or used, and (ii) Non-recoverable cost of installation and removal including the cost of engineering, labor, supervision, transportation, rights- of-way and other associated costs. (iii) Less previously collected special construction charges, if applicable.

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 5-34.1 Cancels 9th Revised Page 5-34.1

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.3.1 Access Order Cancellation Charges (for the following Special Access Services: (1) Self-healing Transport Network (STN) and (1) (T) ReliaNet) (Cont’d) (T)

(B) Cancellation of Access Order

(1) A customer may cancel an Access Order for installation of service. The Access Order must be cancelled at least one (1) day before the service date.

The cancellation date is the date the Telephone Company receives written or verbal notice from the customer that the order is to be cancelled. If verbal notice is given, it must be followed by written confirmation within 10 days or it shall be deemed to be void.

If a customer or customer's end user is unable to accept Access Service and the new service date requested is beyond 30 calendar days of the original service date, the customer has the choice of the following options:

(a) The Access Order shall be cancelled and charges specified in Section 5.3.3.1(B)(2) will apply, or (T)

(b) Service shall be accepted, and billing for the service will commence.

In such instances, the cancellation date or the billing date, depending on which option is selected by the customer, shall be the 31st day beyond the original service date of the Access Order. If the customer does not select one of the options, the Telephone Company will begin billing for the service on the 31st day beyond the original service date of the Access Order.

(2) When Cancellation Charges Apply

When a customer cancels an Access Order (or a part of an order) after it has been issued, but before notification by the Telephone Company that the service is available for use, cancellation charges will apply, even when nonrecurring installation charges would be waived, as follows:

(a) When a “point to point” special access service is cancelled on or before the Design Layout Report Date (DLRD), a cancellation charge will apply on a per circuit basis as shown in Table A in Section 5.3.3.1(B)(3)(a).

(b) When a lower-speed “point to point” service (1) with a Connecting Facility Assignment (CFA) of a higher- speed “point to point” or “non-point to point” service (1) is cancelled, and a cancelled service has no channel termination or local distribution channel, a cancellation charge will apply on a per circuit basis as shown in Table A in Section 5.3.3.1(B)(3)(a).

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook. (This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 5-34.2 Cancels 8th Revised Page 5-34.2

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.3.1 Access Order Cancellation Charges (for the following Special Access Services: (1) Self-healing Transport Network (STN) and (T) ReliaNet)(1) (Cont’d) (T)

(B) Cancellation of Access Order (Cont’d)

(2) When Cancellation Charges Apply (Cont’d)

(c) When a “point to point” service is cancelled after the Design Layout Report Date (DLRD), a cancellation charge will apply on a per circuit basis as shown in Table B, following.

(3) Cancellation Charges

(a) Point-to-point Services:

TABLE A Cancellation Charge Product Cancellation Charge Category/Type (Per Circuit) (1) (1) (1) (1) (1)

TABLE B Cancellation Charge Product Cancellation Charge Category/Type (Per Circuit) (1) (1) (1) (1) (1)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 5-34.3 Cancels 9th Revised Page 5-34.3

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.3 Rate Regulations (Cont'd)

5.3.3.1 Access Order Cancellation Charges (for the following Special Access Services: (1) Self-healing Transport Network (STN) and (T) ReliaNet)(1) (Cont’d) (T)

(B) Cancellation of Access Order (Cont’d)

(3) Cancellation Charges (Cont’d)

(b) Non-point-to-point services:

Applicable charges will be calculated from the costs incurred by the Telephone Company at the time the Access Order is cancelled. The Cancellation Charge equals:

(i) Non-recoverable cost of equipment and material ordered, provided or used, and

(ii) Non-recoverable cost of installation and removal including the cost of engineering, labor, supervision, transportation, rights- of-way and other associated costs.

(4) When Cancellation Charges Do Not Apply

(a) When a customer cancels an order for the termination of existing service.

(b) If the Telephone Company misses a service date by more than 30 days, the customer may cancel the Access Order without incurring cancellation charges.

(c) Where the customer cancels a letter of agreement prior to the start of installation of access facilities.

(d) Network reconfiguration order.

5.3.4 Minimum Period Requirements

The minimum period for which Access Service is provided and for which charges are applicable is set forth in each section of this tariff.

When Access Service is disconnected prior to the expiration of the minimum period, charges are applicable for the balance of the minimum period. A disconnect constitutes facilities being returned to available inventory. This terminology does not refer to when billing is stopped, but rather distinguishes a disconnect from a service rearrangement.

Service rearrangements may be made without a change in minimum period requirements where so specified in this tariff.

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 29th Revised Page 5-35 Cancels 28th Revised Page 5-35

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.4 Rates and Charges

All rates and charges contained in this section are applicable to Arkansas, Kansas, Missouri, Oklahoma and Texas. The applicable FIDs or USOCs are included when appropriate.

(A) Access Order Charges (NRB1X)

(1) The following access order charge applies to Switched Access Service (with the exception of the DNAL BSA), CCS/SS7 Interconnection Service, DirectLine Custom Service,(D) Directory Assistance Service, Operator Call Processing Service, Service Provider Number Portabilty and TRIS.

Charge per Access Order

Switched Access Order Charge ...... $17.00

(2) The following access order charge applies to the DNAL BSA, Special Access Service, MegaLink Custom Services, STN and Expanded Interconnection.(1)

Charge per Access Order

Special Access Order Charge ...... $14.00

(3) The following access order charge applies to LIDB Service, per order form.

Charge per Access Order

LIDB Service Order Charge ...... $19.00

(1) This charge does not apply to OC-192 Dedicated SONET Ring Service.

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 5-36 Cancels 2nd Revised Page 5-36

ACCESS SERVICE

5. Ordering for Access Service (Cont'd)

5.4 Rate and Charges (Cont'd)

(B) Access Order Modification Charges

Charge per order per occurrence

(1) Design Change Charge (H28)...... $32.96

Charge per order per occurrence per service date changed

(2) Service Date Change Charge (OMC)...... $26.50(I) (N) Charge per order per occurrence

(3) Service Date Change Dispatch (N) Charge (VT6DN)...... $200.00

(This page filed under Transmittal No. 2929 )

Issued: February 3, 2003 Effective: February 18, 2003

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-1 Cancels 4th Revised Page 6-1

ACCESS SERVICE

Page

6. Switched Access Service 6-1

6.1 General Description 6-6

6.2 Feature Group Descriptions 6-8

6.2.1 Feature Group A (FGA) 6-9 6.2.2 Feature Group B (FGB) 6-12 6.2.3 6.2.4 Feature Group D (FGD) 6-18

6.3 Basic Serving Arrangement Descriptions 6-22

6.3.1 Circuit Switched - Line side BSA (BSA-A) 6-23 6.3.2 Circuit Switched - Trunk Side Alternative B (BSA-B) 6-26 6.3.3 (D) 6.3.4 Circuit Switched - Trunk Side Alternative D (BSA-D) 6-34 6.3.5 Dedicated Network Access Link (DNAL) BSA 6-39

6.4 Miscellaneous Services Descriptions 6-41

6.4.1 WATS Access Line Service 6-41 6.4.2 800 Number Portability Access Service (NPAS) 6-42 6.4.3 900 Access Service 6-44 6.4.4 Advanced Carrier Identification Service (ACIS) 6-45.1

6.5 Switched Transport 6-45.3

6.5.1 Switched Transport Facilities 6-45.4 6.5.2 Switched Transport Connections 6-45.5 6.5.3 Hubbing 6-45.9

6.6 Switched Access Features and Basic Service Elements 6-46

6.6.1 Switched Transport Features 6-47 6.6.2 Local Switching - Common Switching Features 6-51 6.6.3 Local Switching - Transport Termination Features 6-73 6.6.4 Local Switching - Line Termination Features 6-81 6.6.5 Basic Service Elements 6-83

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-2 Cancels 2nd Revised Page 6-2

ACCESS SERVICE

Page

6. Switched Access Service (Cont'd)

6.7 Service Provisioning 6-95

6.7.1 Manner of Provisioning 6-95 6.7.2 Design and Traffic Routing of Switched Access Service 6-98 6.7.3 Design Blocking Probability 6-99 6.7.4 Determining the Number of Transmission Paths 6-102 6.7.5 Determining the Number of End Office Transport Terminations 6-103 6.7.6 Interface Groups 6-104 6.7.7 DNAL Network Channel Interfaces 6-111 6.7.8 Transmission Specifications 6-112 (A) Line Side and Trunk Side Switched Access Service 6-112 (B) DNAL BSA Switched Access Service 6-116 6.7.9 Supervisory Signaling 6-117 6.7.10 Testing 6-118 (A) Acceptance Tests 6-118 (B) In-Service Testing 6-118.1 6.7.11 Network Management 6-120 6.7.12 Media Stimulated Mass Calling Events 6-121 6.7.13 Design Layout Report 6-122 6.7.14 Provision of Service Performance Data 6-123 6.7.15 Trunk Group Measurement Reports 6-124 6.7.16 Percent Direct Routed Factor 6-124 6.7.17 Percent Tandem Signaling Factor 6-124.2 6.7.18 Tandem Signaling Terminating Billing Data 6-124.3

Revised material is filed under authority of Special Permission No. 95-81 of the F.C.C.

(This page filed under Transmittal No. 2420 )

Issued: January 20, 1995 Effective: January 24, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-2.1 Cancels 2nd Revised Page 6-2.1

ACCESS SERVICE

Page

6. Switched Access Service (Cont'd)

6.8 Rate Regulations 6-125

6.8.1 Rate Elements 6-126

(A) Entrance Facility 6-126 (B) Direct-Trunked Transport 6-126.1 (C) Tandem-Switched Transport 6-126.2 (D) Local Switching 6-127 (E) Reserved for Future Use 6-128 (D) (F) Information Surcharge 6-128 (G) DNAL Termination 6-129 (H) DNAL Mileage 6-129

6.8.2 Nonrecurring Charges 6-130

(A) Nonrecurring Charges for Installation of Service 6-130 (B) Nonrecurring Charges for Installation of Features 6-132 (C) Nonrecurring Charges for Basic Service Elements 6-136 (D) Nonrecurring Charges for Service Rearrangements 6-138

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-3 Cancels 7th Revised Page 6-3

ACCESS SERVICE

Page

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates 6-141 (A) Premium Rate Application 6-141 (B) Reserved for Future Use 6-143 (D) (C) Reserved for Future Use 6-145 (D) (D) Premium Rate Application for BSEs 6-149 (D) (E) Switched Transport 6-149.1 (F) Local Switching 6-150 (G) DNAL Termination 6-150 (H) DNAL Mileage 6-150 (I) 800 Number Portability Access Service (NPAS) 6-150.1 (J) Multiplexing 6-150.2 (K) Advanced Carrier Identification Service (ACIS) 6-150.2 6.8.4 Determining Chargeable Access Minutes 6-151 (A) Determining Chargeable Access Minutes from Recordings 6-151 (B) Determining Chargeable Access Minutes from Factored Recordings 6-157 (C) Determining Chargeable Access Minutes from Assumed Minutes 6-161 6.8.5 Determining Switched Transport Mileage and Charges 6-163 (A) Determining Switched Transport Mileage 6-163 (B) Determining Switched Transport Mileage Charges 6-165.1 6.8.6 Minimum Period Charges 6-166 6.8.7 Message Unit Credit 6-167 6.8.8 Reserved for Future Use 6-168 (D) 6.8.9 Change of Feature Group Type or Basic Service Arrangement 6-169 (A) Change of Feature Group 6-169 (B) Change of Basic Serving Arrangements 6-169.1 (C) Conversion of Existing Feature Group to Basic Serving Arrangements 6-170 6.8.10 Moves 6-171 (A) Moves of the Point of Termination Within the Same Customer Premises 6-171 (B) Moves of Customer Premises 6-174 6.8.11 Application of Rates for Extension Service 6-175 (A) FGA and BSA-A Extensions Within a LATA 6-175 (B) FGA and BSA-A Extension in Different LATAs 6-175 6.8.12 Shared Use 6-176 6.8.13 Application of Rates for FGA Service to Directory Assistance Service 6-177 6.8.14 Non-Access Charges 6-178 6.8.15 Zone Pricing 6-178.10

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 6-4 Cancels 9th Revised Page 6-4

ACCESS SERVICE

Page

6. Switched Access Service (Cont'd) 6.9.1

6.9.2 Switched Transport 6-179 (A) Entrance Facilities 6-179.1 (B) Direct-Trunked Transport 6-179.5 (C) Tandem-Switched Transport 6-179.11 (D) Feature Group and BSA Installation Charge 6-179.12 (E) Trunk Conversion Charge 6-179.16 (F) Rollover 6-180 (G) Switched Transport Features 6-181 6.9.3 Local Switching 6-185 (A) Bundled Local Switching Usage 6-185 (B) Unbundled Local Switching Usage 6-185 (C) Dedicated End Office Port 6-185 (T) (D) Shared End Office Trunk Port 6-185 (N) (E) 900 Access Service NXX Activation Charge 6-185 (T) (F) 0+900 Access Service Installation Charge 6-186 (G) Common Switching Features 6-186 (H) Transport Termination Features 6-195 (I) Line Termination Features 6-199 (T) 6.9.4 Basic Service Elements 6-200 6.9.5 Administrative Changes 6-206 6.9.6 Information Surcharge 6-208 6.9.7 Dedicated Network Access Link (DNAL) 6-208 6.9.8 800 Number Portability Access Service (NPAS) 6-209 6.9.9 Advanced Carrier Identification Service (ACIS) 6-209 6.9.10 Message Unit Credit 6-209

(This page filed under Transmittal No. 2844 )

Issued: September 7, 2000 Effective: September 22, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-5 Cancels 3rd Revised Page 6-5

ACCESS SERVICE

6. Switched Access Service

The following list matches the Telephone Company's Basic Service Element (BSE) names to the industry standard names for each BSE.

Telephone Company Names Generic Name of ONA Service

Alternate Traffic Routing Alternate Routing - End Office Routing - Multiple Traffic Routing

Automatic Number Identification/ Calling Billing Number Charge Number Parameter Delivery - FGD Protocol

Direct Inward Dialing (DID) Direct Inward Dialing (DID) (N)

Flexible Automatic Number Flexible ANI Information Digits Identification (Flex ANI)

Multiline Hunt Group Multiline Hunt Group - Circular Hunting - Preferential Hunting - Regular Line Hunting

Nonhunting Number Arrangement Multiline Hunt Group - Individual Access To Each Port In Hunt Group

Queuing Multiline Hunt Group - UCD With Queuing

Recorded Announcements Multiline Hunt Group - CO Announcements

Remote Make Busy Make Busy Key

Remote Make Busy - Trunk Side Make Busy Key

Simplified Message Desk Interface (SMDI) Simplified Message Desk (N) Interface (SMDI) │ │ Simplified Message Desk Interface - Simplified Message Desk │ Expanded (SMDI-E) Interface - Expanded (SMDI-E) (N)

Uniform Call Distribution Multiline Hunt Group - Uniform Arrangement Call Distribution Line Hunting

(This page filed under Transmittal No. 2571 )

Issued: August 30, 1996 Effective: October 14, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 6-6 Cancels 11th Revised Page 6-6

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.1 General Description

Switched Access Service provides a two-point communications path between a customer's premises and an end user's premises through the use of common terminating, common switching, Switched Transport facilities, and common subscriber plant of the Telephone Company. Switched Access Service provides for the ability to originate calls from an end user's premises to a customer's premises, and to terminate calls from a customer's premises to an end user's premises in the LATA where service is provided. (N) Rates and charges for Switched Access/Dedicated Transport are set forth in Section 6.9 following, with the exception of the services provided by the Telephone Company in the Metropolitan Statistical Areas (MSAs) in which the Telephone Company has received Phase II pricing flexibility pursuant to Subpart H of Part 69 of the Commission’s Rules. The rates and charges for the Switched Access/Dedicated Transport services in the MSAs that have received (N) Phase II pricing flexibility are set forth in Section 39.

When Expanded Interconnection replaces some of the Telephone Company provided flat-rated Switched Transport Services (i.e., Entrance Facility, Direct-Trunked Transport, between the serving wire center and the access tandem), Switched Access service will include the Switched Transport services and features not provided by the interconnector. When Expanded Interconnection replaces all of the Telephone Company provided flat-rated Switched Transport services, Switched Access Service will include only the common terminating, common switching, common subscriber plant, and the usage-rated Switched Transport Services (i.e., Tandem Switching and Tandem- Switched Transmission/Common Transport) that may be necessary to provide a complete two-point communications path between the customer's premises and the end office where calls are switched to originate or terminate.

When Expanded Interconnection replaces all of the Telephone Company's interoffice transport, mileage measurement will not apply. When Expanded Interconnection replaces only a portion of the Telephone Company's interoffice transport, mileage will be calculated using the V&H coordinates of the wire center housing the Expanded Interconnection arrangement and the wire center where the Telephone Company provided transport either originates or terminates.

(This page filed under Transmittal No. 2951 )

Issued: May 29, 2003 Effective: June 13, 2003

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-6.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.1 General Description (Cont'd) (M) The provision of each feature group or basic serving arrangement (S) │ requires Switched Transport and the appropriate Local Switching (S) │ functions. Switched Transport provides for the transmission facilities │ between the customer's premises and the end office switch where the │ customer's traffic is switched to originate or terminate traffic. │ Local Switching provides for the local end office switching and end │ user termination functions necessary to complete the transmission of │ the customer's communications over Switched Access facilities to and │ from the end users served by the local end office. Common Line is │ provisioned under Section 3 (Carrier Common Line Access Service) and │ Section 4 (End User Access Service). A more detailed description of the rate categories applicable to Switched Access Service, how these rate categories are applied and other service specific charges and nonrecurring charges are contained in Section 6.8 (Rate Regulations).

Reissued material is scheduled to become effective December 30, 1993.

Certain material appearing on this page formerly appeared on 2nd Revised Page 6-6.

(This page filed under Transmittal No. 2308 )

Issued: November 18, 1993 Effective: February 15, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-7 Cancels 1st Revised Page 6-7

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.1 General Description (Cont'd)

The following diagrams depict generic views of the components of line and trunk side Switched Access Service and the manner in which the components are combined to provide a complete Access Service.

1) DIRECT-TRUNKED TRUNK SIDE SERVICES AND ORIGINATING LINE SIDE SERVICES

SWITCHED ACCESS SERVICE

WIRE CENTER SERVING END USER END OFFICE CUSTOMER CUSTOMER PREMISES

DIRECT-TRUNKED CCL LS TRANSPORT EF

Note: An exception to mileage measurement for originating line side services is set forth in 6.8.5 (Determining Switched Transport Mileage and Charges) 2) TANDEM-SWITCHED TRUNK SIDE SERVICES

SWITCHED ACCESS SERVICE

WIRE CENTER SERVING END USER END OFFICE CUSTOMER CUSTOMER ACCESS TANDEM PREMISES

TANDEM DIRECT SWITCHED TRUNK TRANSMISSION TRANSPORT CCL LS EF

(C) CCL: CARRIER COMMON LINE LS: LOCAL SWITCHING EF: ENTRANCE FACILITIES (C)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively (T) back to the transmittal’s original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.2

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-7.1 Cancels Original Page 6-7.1

ACCESS SERVICE

6. Switched Access Service (Cont’d)

6.1 General Description (Contd)

3) TERMINATING LINE SIDE SERVICES

SWITCHED ACCESS SERVICE

WIRE CENTER DIAL TONE SERVING END USER END OFFICE OFFICE CUSTOMER CUSTOMER PREMISES

COMMON DIRECT-TRUNKED CCL LS TRANSPORIT TRANSPORT EF

4) DIRECT-TRUNKED HOST/REMOTE ARRANGEMENTS

SWITCHED ACCESS SERVICE

WIRE CENTER SERVING END USER RSS/RSM HOST OFFICE CUSTOMER

HOST/REMOTE DIRECT-TRUNKED (C) CCL TRANSMISSION LS TRANSPORT EF (C)

CCL: CARRIER COMMON LINE LS: LOCAL SWITCHING EF: ENTRANCE FACILITIES RS5/RSM: REMOTE SWITCHING SYSTEM/REMOTE SWITCHING MODULE

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal’s original effective date, in the event the commission or a court subsequently authorized SWZT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-7.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.1 General Description (Cont'd)

5)DIRECT-TRUNKED HOST/REMOTE TANDEM ARRANGEMENTS

SWITCHED ACCESS SERVICE

WIRE CENTER ACCESS SERVING (N) END USER RSS/RSM HOST OFFICE TANDEM CUSTOMER CUSTOEMR PREMISES

TANDEM HOST/REMOTE SWITCHED DIRECT-TRUNKED CCL TRANSMISSION LS TRANSMISSION TRANSPORT EF

CCL:CARRIER COMMON LINE LS:LOCAL SWITCHING (N) EF:ENTRANCE FACILITIES RSS/RSM: REMOTE SWITCHING SYSTEM/REMOTE SWITCHING MODULE

(T)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal’s original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X- factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-8 Cancels Original Page 6-8

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.2 Feature Group Descriptions

Switched Access Service may be provided in four different feature group arrangements. These are generally differentiated by their technical characteristics, e.g., line side or trunk side connection at the Telephone Company entry switch, and the manner in which an end user accesses them in originating calling, e.g., with or without an access code.

Feature groups are arranged for either originating, terminating or two- way calling, based on the customer's order specifications. Originating calling permits the delivery of calls from Telephone Exchange Service locations to the customer's premises. Terminating calling permits the delivery of calls from the customer's premises to Telephone Exchange Service locations. Two-way calling permits the delivery of calls in both directions, but not simultaneously.

There are various Switched Transport services and features, and Local Switching features available with the feature groups. These features are described in 6.6 (Switched Access Features and Basic Service Elements). Unless specifically stated otherwise, these features are available at all Telephone Company end office switches.

Following are detailed descriptions of each of the available feature groups. Each feature group is described in terms of its specific physical characteristics and calling patterns.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-9

ACCESS SERVICE

(M) 6. Switched Access Service (Cont'd) (T) 6.2 Feature Group Descriptions (Cont'd) (M) 6.2.1 Feature Group A (FGA) (T) (A) General (M) (1) FGA is provided in connection with Telephone Company │ electronic and electromechanical end offices. At the (M) option of the customer, FGA is provided on a single or (T) multiple line group basis. (M) (2) FGA provides a line side termination at the first │ point of switching. The line side termination will be │ provided with either ground start supervisory │ signaling or loop start supervisory signaling. The │ type of signaling is at the option of the customer. │ │ (3) The customer shall specify the first point of (M) switching, within the selected LATA, at which the line (T) side termination is to be provided. (T) (4) When a FGA switching arrangement for an individual (M) customer (a single line or entire hunt group) is │ discontinued at an end office, an intercept │ announcement is provided. This arrangement provides, │ for a maximum period of 90 days, an announcement that │ the service associated with the number dialed has been (M) disconnected. (T) (B) Originating FGA │ │ (1) Originating FGA may be utilized in conjunction with │ the following access services provided under this │ tariff: │

WATS Access Line Service

Material and certain revised material appearing on this page formerly appeared on 6th Revised Page 98.20 and 9th Revised Page 98.22 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-10 Cancels 2nd Revised Page 6-10

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.2 Feature Group Descriptions (Cont'd)

6.2.1 Feature Group A (FGA) (Cont'd)

(B) Originating FGA (Cont'd)

(2) A seven digit local telephone number assigned by the Telephone Company is provided for access to FGA switching and provides the calling area associated with the exchange in which the local telephone number is assigned. The seven digit local telephone number will be associated with the selected end office switch and is of the form NXX-XXXX. If the customer requests a specific seven digit telephone number that is available and the necessary facilities and equipment are available, the requested number will be assigned to the customer.

(3) No address signaling is provided by the Telephone Company. If address signaling is required by the customer, it must be provided by the customer's end user using inband tone signaling techniques. Such inband tone address signals will not be regenerated by the Telephone Company and will be subject to the ordinary transmission capabilities of the Switched Transport provided.

(C) Terminating FGA

(1) Terminating FGA may be utilized in conjunction with the following access services provided under this tariff:

- WATS Access Line Service - 800 NPAS - 900 Access Service - Directory Assistance - ACIS (C)

(This page filed under Transmittal No. 2405 )

Issued: December 2, 1994 Effective: January 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-11

ACCESS SERVICE

(M) 6. Switched Access Service (Cont'd) (T) 6.2 Feature Group Descriptions (Cont'd) (M) 6.2.1 Feature Group A (FGA) (Cont'd) (T) (C) Terminating FGA (Cont'd) (T) (2) FGA switching may be used to access valid NXXs in the (M) LATA. Local operator service (0- and 0+), Directory │ Assistance (411 where available and 555-1212), │ emergency reporting service (911 where available), │ exchange telephone repair, time or weather │ announcement services of the Telephone Company, │ community information services of an information │ service provider, and other customers' services (by │ dialing the appropriate digits) may also be accessed │ by FGA services. Charges for FGA terminating calls │ requiring operator assistance or calls to 911 will │ only apply where sufficient call details are (M) available. (T) (3) FGA switching is arranged with dial tone start-dial (T) signaling. FGA switching may be arranged for dial (M) pulse or dual tone multifrequency address signaling, │ subject to availability of equipment at the first │ point of switching. When FGA switching is provided in │ a hunt group or uniform call distribution arrangement, │ all FGA switching will be arranged for the same type of address signaling.

Material and revised material appearing on this page formerly appeared on 8th Revised Page 98.21 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-12 Cancels Original Page 6-12

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.2 Feature Group Descriptions (Cont'd)

6.2.2 Feature Group B (FGB)

(A) General

(1) FGB, when directly routed to an end office (i.e., provided without the use of an access tandem switch), is provided at appropriately equipped Telephone Company electronic end office switches. When provided via Telephone Company designated electronic access tandem switches, FGB switching is provided at Telephone Company electronic and electromechanical end office switches.

(2) FGB is provided as trunk side switching. The switch trunk equipment is provided with wink start address signaling or immediate dial pulse address signaling and answer and disconnect supervisory signaling. FGB switching is provided with multifrequency address signaling in both the originating and terminating directions.

(3) The Telephone Company will establish a trunk group or groups for the customer at end office switches or access tandem switches where FGB switching is provided. When required by technical limitations, a separate trunk group will be established for each type of FGB switching arrangement provided, e.g., 1+900 Access Service. Different types of FGB switching may be combined in a single trunk group at the option of the Telephone Company.

(4) When all FGB switching arrangements are discontinued at an end office or in a LATA, an intercept announcement is provided. This arrangement provides, for a maximum period of 90 days, an announcement that the service associated with the number dialed has been disconnected.

(This page filed under Transmittal No. 2264 )

Issued: March 1, 1993 Effective: May 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-13 Cancels 4th Revised Page 6-13

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.2 Feature Group Descriptions (Cont'd)

6.2.2 Feature Group B (FGB) (Cont'd)

(B) Originating FGB

(1) Originating FGB may be utilized in conjunction with the following access services provided under this tariff:

- WATS Access Line Service - 1+900 Access Service - ACIS

FGB Switched Access may be used to originate ACIS and 1+900 Access Service, until such time as FGD becomes available in the end office. (D) (D) (D)

(2) The uniform access code for FGB switching is 950-XXXX. (The XXXX represents a unique four digit number for each access customer.) These uniform codes will be the assigned access numbers for all FGB Switched Access Service provided to the customer by the Telephone Company. ACIS and 1+900 Access Service provided with FGB Switched Access Service must be originated without the use of an access code.

(3) FGB is provided with multifrequency address signaling. Except for FGB switching provided with the automatic number identification (ANI) or rotary dial station signaling arrangements, any other address signaling in the originating direction, if required by the customer, must be provided by the customer's end user using inband tone signaling techniques. Such inband tone address signals will not be regenerated by the Telephone Company and will be subject to the ordinary transmission capabilities of the Switched Transport provided.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-14 Cancels 5th Revised Page 6-14

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.2 Feature Group Descriptions (Cont'd)

6.2.2 Feature Group B (FGB) (Cont'd)

(C) Terminating FGB

(1) Terminating FGB may be utilized in conjunction with the following access services provided under this tariff:

- WATS Access Line Service - 800 NPAS - 900 Access Service - Directory Assistance Service - ACIS routed traffic

(2) When directly routed to an end office, only those valid NXX codes served by that end office may be accessed. When routed through an access tandem, only those valid NXX codes served by end offices subtending the access tandem may be accessed. Calls will also be completed to time or weather announcement services of the Telephone Company, community information services of an information service provider and other customers' services (by dialing the appropriate digits), as well as to Directory Assistance (NPA-555- 1212 or 555-1212) when FGB switching is combined with Directory Assistance switching.

(3) Calls in the terminating direction will not be completed to 950-XXXX access codes, local operator assistance (0- and 0+), Directory Assistance (411), exchange telephone repair service, service code 911 or 101XXXX access codes. FGB may not be switched to access another FGB or FGD in the same LATA or switched (D) to access a BSA-B or BSA-D in the same LATA. (D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-15 Cancels 1st Revised Page 6-15

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.2 Feature Group Descriptions (Cont'd)

6.2.3 Reserved for Future Use (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-16 Cancels 4th Revised Page 6-16

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.2 Feature Group Descriptions (Cont'd)

(D)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-17 Cancels 6th Revised Page 6-17

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.2 Feature Group Descriptions (Cont'd)

(D)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-18 Cancels 1st Revised Page 6-18

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.2 Feature Group Descriptions (Cont'd)

6.2.4 Feature Group D (FGD)

(A) General

(1) FGD is provided at Telephone Company designated end office switches whether routed directly or via Telephone Company designated electronic access tandem switches.

(2) FGD is provided as trunk side switching through the use of end office or access tandem switch trunk equipment. The switch trunk equipment is provided with wink start start-pulsing signals and answer and disconnect supervisory signaling.

(3) The Telephone Company will establish a trunk group or groups for the customer at end office switches or access tandem switches where FGD switching is provided. When required by technical limitations, a separate trunk group will be established for each type of FGD switching arrangement provided. Different types of FGD or other switching arrangements may be combined in a single trunk group at the option of the Telephone Company.

(4) FGD Switching is provided with inband multifrequency address signaling or out of band SS7 signaling. With multifrequency address signaling and SS7 signaling up to 12 digits of the called party number dialed by the customer's end user using dual tone multifrequency or dial pulse address signals will be provided by Telephone Company equipment to the customer's premises where the Switched Access Service terminates. Such address signals will be subject to the ordinary transmission capabilities of the Switched Transport provided.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-19 Cancels 6th Revised Page 6-19

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.2 Feature Group Descriptions (Cont'd)

6.2.4 Feature Group D (FGD) (Cont'd)

(B) Originating FGD

(1) Originating FGD may be utilized in conjunction with the following access services provided under this tariff:

- WATS Access Line Service - 800 NPAS - 900 Access Services - MicroLink I Access Capability - Operator Call Processing Service - ACIS

(2) The uniform access code for FGD switching is 101XXXX. (The XXXX represents a unique four digit number for each access customer.) This uniform code will be the assigned access number for all FGD Access Service provided to the customer by the Telephone Company. When the 101XXXX access codes are used, FGD switching also provides for dialing the digit 0 for access to the customer's operator, 911 for access to the Telephone Company's emergency reporting service, or the end-of- dialing digit (#) for cut-through access to the customer's premises. FGD Switched Access Service may be originated by using the 950-0XXX or 950-1XXX access code if the customer requests the FGD or BSA-D with 950 Access feature.

(3) When a customer changes an existing FGB to FGD in the same end office, end users may (if facilities are available) dial either the previous FGB access code or the new FGD access code for a maximum of 90 days. This arrangement will be provided at the customer's request, where facilities are available, as long as the FGB (C) 0/1XXX access code is the same as the four (4) digit (C) FGD 0/1XXX and only in the 0/1 bank of numbers. In (C) addition, use of the FGB access code may continue from public coin, coinless and hotel/motel classes of service, until the customer requests otherwise. The customer must be prepared to differentiate between 950- XXXX calls and the other FGD calls on the same trunks by using the signaling described in Technical Reference FR-NWT-000064 LATA Switching System General Requirements. All access minutes will be rated as FGD.

(This page filed under Transmittal No. 2844 )

Issued: September 7, 2000 Effective: September 22, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-20 Cancels 1st Revised Page 6-20

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.2 Feature Group Descriptions (Cont'd)

6.2.4 Feature Group D (FGD) (Cont'd)

(B) Originating FGD (Cont'd)

(4) No access code is required for calls to a customer over FGD Switched Access Service (this includes MicroLink I Access Capability provided in conjunction with FGD) if the end user's telephone exchange service is arranged for presubscription to that customer, as specified in Section 13.3.1 (Easy Access Dialing). The customer's end user is not required to dial an access code for originating 800 NPAS, 900 Access (T) Service and ACIS provided with FGD Switched Access (C) Service. 800 NPAS, 900 Access Service and ACIS calls (C) dialed with an access code will be blocked by the Telephone Company.

(5) Where no access code is required, the telephone number dialed by the customer's end user shall be a seven or ten digit number for calls in the North American Numbering Plan (NANP). For international calls outside the NANP, a seven to twelve digit number may be dialed. The form of the numbers dialed by the customer's end user is NXX-XXXX, 0 or 1 + NXX-XXXX, NPA + NXX-XXXX, 0 or 1 + NPA + NXX-XXXX, and, when the end office is equipped for International Direct Distance Dialing (IDDD), 01 + CC + NN or 011 + CC + NN.

(This page filed under Transmittal No. 2405 )

Issued: December 2, 1994 Effective: January 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-21 Cancels 5th Revised Page 6-21

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.2 Feature Group Descriptions (Cont'd)

6.2.4 Feature Group D (FGD) (Cont'd)

(C) Terminating FGD

(1) Terminating FGD may be utilized in conjunction with the following access services provided under this tariff:

- WATS Access Line Service - 800 NPAS - 900 Access Service - Directory Assistance Service - Operator Call Processing Service - ACIS routed traffic

(2) When directly routed to an end office, only those valid NXX codes served by that office may be accessed. When routed through an access tandem, only those valid NXX codes served by end offices subtending the access tandem may be accessed. Calls will also be completed to time or weather announcement services of the Telephone Company, community information services of an information service provider, and other customer's services (by dialing the appropriate codes) when such services can be reached using valid NXX codes, as well as to Directory Assistance (NPA-555-1212 or 555-1212) when FGD switching is combined with Directory Assistance switching.

(3) Calls in the terminating direction will not be completed to 950-XXXX access codes, local operator assistance (0- and 0+), Directory Assistance (411), exchange telephone repair service, service code 911 or 101XXXX access codes. Additionally, the Telephone Company will not complete terminating MicroLink I 56 kbps digital data over analog facilities. FGD, in the terminating direction, may not be switched to access another FGB or FGD in the same LATA or switched to (D) access a BSA-B or BSA-D in the same LATA. (D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-22 Cancels Original Page 6-22

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions

Basic serving arrangements (BSAs) are differentiated by their technical characteristics, e.g., line side or trunk side connection at the Telephone Company entry switch. The trunk side BSA is further differentiated into three alternatives based upon the manner in which an end user would access the BSA for originating calling, e.g., with or without an access code.

BSAs are arranged for either originating, terminating or two-way calling, based upon the customer's order specifications. Originating calling permits the delivery of calls from Telephone Exchange Service locations to the customer's premises. Terminating calling permits the delivery of calls from the customer's premises to Telephone Exchange Service locations. Two-way calling permits the delivery of calls in both directions, but not simultaneously.

There are various Switched Transport services and features, Local (T) Switching features and basic service elements (BSEs) available with a BSA. Switched Transport features, Local Switching features and BSEs are described in Section 6.6 (Switched Access Features and Basic Service Elements). Unless specifically stated otherwise, these features and BSEs are available at all Telephone Company end office switches.

Following are detailed descriptions of each basic serving arrangement and alternatives. Each BSA is described in terms of its specific physical characteristics and calling patterns.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-23

ACCESS SERVICE

(M) 6. Switched Access Service (Cont'd) │ │ 6.3 Basic Serving Arrangement Descriptions (Cont'd) │ │ 6.3.1 Circuit Switched - Line Side BSA (BSA-A) │ (M) (A) General (T) (1) Circuit Switched - Line Side BSA (BSA-A) is provided (M) in connection with Telephone Company Electronic and (M) electromechanical end offices. (T) (2) BSA-A provides network access in the form of a line (M) side termination at the first point of switching and │ provides the basis for selection of Basic Service │ Elements. The line side termination will be provided │ with either ground start supervisory signaling or loop │ start supervisory signaling. The type of signaling is │ at the option of the customer. │ │ (3) The customer shall specify the first point of │ switching within the selected LATA at which the line (M) side termination is to be provided. (T) (4) When an individual customer's BSA-A is discontinued at (M) an end office, an intercept announcement is provided. │ This arrangement provides, for a maximum period of 90 │ days, an announcement that the service associated with (M) the number dialed has been disconnected. (T) (B) Originating BSA-A (T) (1) BSA-A may be utilized in conjunction with the (M) following access services provided under this tariff:

WATS Access Line Service

Material and revised material appearing on this page formerly appeared on Original Page 98.42.6 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-24 Cancels 1st Revised Page 6-24

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.1 Circuit Switched - Line Side BSA (BSA-A) (Cont'd)

(B) Originating BSA-A (Cont'd)

(2) A seven digit local telephone number assigned by the Telephone Company is provided for access to BSA-A switching and provides the calling area associated with the exchange in which the local telephone number is assigned. The seven digit local telephone number will be associated with the selected end office switch and is of the form NXX-XXXX. If the customer requests a specific seven digit telephone number and that number (as well as the necessary facilities and equipment) is available, the requested number will be assigned to the customer.

(3) No address signaling is provided by the Telephone Company. If address signaling is required by the customer, it must be provided by the customer's end user using inband tone signaling techniques. Such inband tone address signals will not be regenerated by the Telephone Company and will be subject to the ordinary transmission capabilities of the Local Transport provided.

(C) Terminating BSA-A

(1) Terminating BSA-A may be utilized in conjunction with the following access services provided under this tariff:

- WATS Access Line Service - 800 NPAS - 900 Access Service - Directory Assistance - ACIS routed traffic (C)

(This page filed under Transmittal No. 2405 )

Issued: December 2, 1994 Effective: January 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-25

ACCESS SERVICE

(M) 6. Switched Access Service (Cont'd) │ │ 6.3 Basic Serving Arrangement Descriptions (Cont'd) │ (M) 6.3.1 Circuit Switched - Line Side BSA (BSA-A) (Cont'd) (T) (C) Terminating BSA-A (Cont'd) (T) (2) BSA-A may be used to access valid NXXs in the LATA. (M) Local operator service (0- and 0+), Directory │ Assistance (411 where available and 555-1212), │ emergency reporting service (911 where available), │ exchange telephone repair, time or weather │ announcement services of the Telephone Company, │ community information services of an information (M) service provider, and other customers' services may (T) also be accessed by BSA-A services (by dialing the (T) appropriate digits). Charges for BSA-A terminating (M) calls requiring operator assistance or calls to 911 │ will only apply where sufficient call details are (M) available. (T) (3) BSA-A switching is arranged with dial tone start-dial (T) signaling. BSA-A switching may be arranged for dial (M) pulse or dual tone multifrequency address signaling, (M) subject to availability of equipment at the first (T) point of switching. When BSA-A switching is provided (M) in a hunt group or uniform call distribution (T) arrangement, all BSA-A switching will be arranged for the same type of address signaling.

Material and revised material appearing on this page formerly appeared on Original Page 98.42.8 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-26 Cancels Original Page 6-26

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.2 Circuit Switched - Trunk Side Alternative B (BSA-B)

(A) General

(1) BSA-B, when directly routed to an end office (i.e., provided without the use of an access tandem switch), is provided at appropriately equipped Telephone Company electronic end office switches. When provided via Telephone Company designated electronic access tandem switches, BSA-B switching is provided at Telephone Company electronic and electromechanical end office switches.

(2) BSA-B is provided as trunk side switching. The switch trunk equipment is provided with wink start address signaling or immediate dial pulse address signaling as well as answer and disconnect supervisory signaling. BSA-B switching is provided with multifrequency address signaling in both the originating and terminating directions.

(3) The Telephone Company will establish a trunk group or groups for the customer at end office switches or access tandem switches where BSA-B switching is provided. When required by technical limitations, a separate trunk group will be established for each type of BSA-B switching arrangement provided, e.g., 1+900 Access Service. Different types of BSA-B switching may be combined in a single trunk group at the option of the Telephone Company.

(This page filed under Transmittal No. 2264 )

Issued: March 1, 1993 Effective: May 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-27 Cancels 3rd Revised Page 6-27

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.2 Circuit Switched - Trunk Side Alternative B (BSA-B) (Cont'd)

(A) General (Cont'd)

(4) When all BSA-B switching arrangements are discontinued at an end office or in a LATA, an intercept announcement is provided. This arrangement provides, for a maximum period of 90 days, an announcement that the service associated with the number dialed has been disconnected.

(B) Originating BSA-B

(1) Originating BSA-B may be utilized in conjunction with the following access services provided under this tariff:

- WATS Access Line Service - 1+900 Access Service - ACIS

BSA-B may be used to originate ACIS and 1+900 Access Service until such time as BSA-D becomes available in the end office. (D) (D) (D)

(2) The uniform access code for BSA-B switching is 950-XXXX. (The XXXX represents a unique four digit number for each access customer). These uniform codes will be the assigned access numbers of all BSA-B Switched Access Service provided to the customer by the Telephone Company. ACIS and 1+900 Access Service provided with BSA-B Switched Access Service must be originated without the use of an access code.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-28 Cancels 1st Revised Page 6-28

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.2 Circuit Switched - Trunk Side Alternative B (BSA-B) (Cont'd)

(B) Originating BSA-B (Cont'd)

(3) BSA-B is provided with multifrequency address signaling. Except for BSA-B provided with rotary dial station signaling arrangements or the Automatic Number Identification (ANI) feature, any other address signaling in the originating direction, if required by the customer, must be provided by the customer's end user using inband tone signaling techniques. Such inband tone address signals will not be regenerated by the Telephone Company and will be subject to the ordinary transmission capabilities of the Local Transport provided.

(C) Terminating BSA-B

(1) Terminating BSA-B may be utilized in conjunction with the following access services provided under this tariff:

- WATS Access Line Service - 800 NPAS - 900 Access Service - Directory Assistance Service - ACIS routed traffic (C)

(This page filed under Transmittal No. 2405 )

Issued: December 2, 1994 Effective: January 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-29 Cancels 3rd Revised Page 6-29

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.2 Circuit Switched - Trunk Side Alternative B (BSA-B) (Cont'd)

(C) Terminating BSA-B (Cont'd)

(2) When directly routed to an end office, only those valid NXX codes served by that end office may be accessed. When routed through an access tandem, only those valid NXX codes served by end offices subtending the access tandem may be accessed. Calls will also be completed to time or weather announcement services of the Telephone Company, community information services of an information service provider and other customers' services (by dialing the appropriate digits), as well as to Directory Assistance (NPA-555- 1212 or 555-1212) when BSA-B switching is combined with Directory Assistance switching.

(3) Calls in the terminating direction will not be completed to 950-XXXX access codes, local operator assistance (0- and 0+), Directory Assistance (411), exchange telephone repair service, service code 911 or 101XXXX access codes. BSA-B may not be switched to access FGB or FGD in the same LATA or switched to (D) access a BSA-B or BSA-D in the same LATA. (D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-30 Cancels 2nd Revised Page 6-30

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.3 Reserved for Future Use (T)

(This page filed under Transmittal No. 3393 )

Issued: August 11, 2014 Effective: August 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-31 Cancels 2nd Revised Page 6-31

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.3 Reserved for Future Use (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-32 Cancels 3rd Revised Page 6-32

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

(D)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-33 Cancels 6th Revised Page 6-33

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

(D)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-34 Cancels 1st Revised Page 6-34

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.4 Circuit Switched - Trunk Side Alternative D (BSA-D)

(A) General

(1) BSA-D is provided at Telephone Company designated end office switches--whether routed directly or via Telephone Company designated electronic access tandem switches.

(2) BSA-D is provided as trunk side switching through the use of end office or access tandem switch trunk equipment. The switch trunk equipment is provided with wink start start-pulsing signals and answer and disconnect supervisory signaling.

(3) The Telephone Company will establish a trunk group or groups for the customer at end office switches or access tandem switches where BSA-D switching is provided. When required by technical limitations, a separate trunk group will be established for each type of BSA-D switching arrangement provided. Different types of BSA-D or other switching arrangements may be combined in a single trunk group at the option of the Telephone Company.

(4) BSA-D switching is provided with inband multifrequency address signaling or out of band SS7 signaling. With multifrequency address signaling and SS7 signaling up to 12 digits of the called number dialed by the customer's end user using dual tone multifrequency or dial pulse address signals will be provided by Telephone Company equipment to the customer's premises where the Switched Access Service terminates. Such address signals will be subject to the ordinary transmission capabilities of the Switched Transport provided.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-35 Cancels 5th Revised Page 6-35

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.4 Circuit Switched - Trunk Side Alternative D (BSA-D) (Cont'd)

(B) Originating BSA-D

(1) Originating BSA-D may be utilized in conjunction with the following access services provided under this tariff:

- WATS Access Line Service - 800 NPAS - 900 Access Service - Operator Call Processing Service - ACIS

(2) The uniform access code for BSA-D switching is 101XXXX. (The XXXX represents a unique four digit (C) number for each access customer). This uniform code will be the assigned access number for all BSA-D Access Service provided to the customer by the Telephone Company. When the 101XXXX access codes are (C) used, BSA-D switching also provides for dialing the digit 0 for access to the customer's operator, 911 for access to the Telephone Company's emergency reporting service, or the end-of-dialing digit (#) for cut- through access to the customer's premises. BSA-D Switched Access Service may be originated by using the 950-0XXX or 950-1XXX access code if the customer requests the FGD or BSA-D with 950 Access feature.

(This page filed under Transmittal No. 2720 )

Issued: August 17, 1998 Effective: September 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-36 Cancels 3rd Revised Page 6-36

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.4 Circuit Switched - Trunk Side Alternative D (BSA-D) (Cont'd)

(B) Originating BSA-D (Cont'd)

(3) When a customer changes an existing BSA-B to BSA-D in the same end office, end users (if facilities are available) may dial either the previous BSA-B access code or the new BSA-D access code for a maximum period of 90 days. This arrangement will be provided at the customer's request where facilities are available. In addition, use of the BSA-B access code may continue from public coin, coinless and hotel classes of service until the customer requests otherwise. The customer must be prepared to differentiate between 950-XXXX calls and the other BSA-D calls on the same trunks by using the signaling described in Technical Reference FR-NWT-000064 LATA Switching System General Requirements for Feature Group D. All access minutes will be rated as BSA-D.

(4) No access code is required for calls to a customer over BSA-D Switched Access Service (this includes MicroLink I Access Capability provided in conjunction with BSA-D) if the end user's telephone exchange service is arranged for presubscription to that customer, as specified in 13.3.1 (Easy Access Dialing). The customer's end user is not required to dial an access code for originating 800 NPAS, 900 (T) Access Service and ACIS provided with BSA-D Switched (C) Access Service. 800 NPAS, 900 Access Service and (T) ACIS calls dialed with an access code will be blocked (C) by the Telephone Company.

(This page filed under Transmittal No. 2405 )

Issued: December 2, 1994 Effective: January 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-37 Cancels 1st Revised Page 6-37

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.4 Circuit Switched - Trunk Side Alternative D (BSA-D) (Cont'd)

(B) Originating BSA-D (Cont'd)

(5) Where no access code is required, the telephone number dialed by the customer's end user shall be a seven or ten digit number for calls in the North American Numbering Plan (NANP). For international calls outside the NANP, a seven to twelve digit number may be dialed. The form of the numbers dialed by the customer's end user is NXX-XXXX, 0 or 1 + NXX-XXXX, NPA + NXX-XXXX, 0 or 1 + NPA + NXX-XXXX, and, when the end office is equipped for International Direct Distance Dialing (IDDD), 01 + CC + NN or 011 + CC + NN.

(C) Terminating BSA-D

(1) Terminating BSA-D may be utilized in conjunction with the following access services provided under this tariff:

- WATS Access Line Service - 800 NPAS - 900 Access Service - Directory Assistance - Operator Call Processing Service - ACIS routed traffic (C)

(This page filed under Transmittal No. 2405 )

Issued: December 2, 1994 Effective: January 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-38 Cancels 3rd Revised Page 6-38

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.4 Circuit Switched - Trunk Side Alternative D (BSA-D) (Cont'd)

(C) Terminating BSA-D (Cont'd)

(2) When directly routed to an end office, only those valid NXX codes served by that office may be accessed. When routed through an access tandem, only those valid NXX codes served by offices subtending the access tandem may be accessed. Calls will also be completed to time or weather announcement services of the Telephone Company, community information services of an information provider, and other customers' services (by dialing the appropriate codes) when the services can be reached using valid NXX codes, as well as to Directory Assistance (NPA-555-1212 or 555-1212) when BSA-D switching is combined with Directory Assistance switching.

(3) Calls in the terminating direction will not be completed to 950-XXXX access codes, local operator assistance (0- and 0+), Directory Assistance (411), exchange telephone repair service, service code 911 or 101XXXX access codes. BSA-D may not be switched to access FGB or FGD or switched to access a BSA-B or (D) BSA-D in the same LATA.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-39 Cancels 1st Revised Page 6-39

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.3 Basic Serving Arrangement Descriptions (Cont'd)

6.3.5 Dedicated Network Access Link (DNAL) BSA

(A) General

(1) DNAL BSA is provided in connection with Telephone Company electronic offices where facilities permit. (T)

(2) DNAL BSA provides network access in the form of a dedicated two-wire channel using metallic or equivalent facilities and is capable of transmitting varying signals at transmission speeds of up to 30 baud.

(3) DNAL BSA is only provided in conjunction with a line side or trunk side BSA to provide separate facilities (T) for transmitting signaling or control information required in the use of certain BSEs.

(4) DNAL BSA is provided between the customer's designated premises and a Telephone Company switch. Interoffice DNAL metallic mileage is limited in length to five miles.

(5) DNAL BSA is subject to DNAL Termination and DNAL Mileage as set forth in Section 6.8.3 (Monthly Recurring and Usage Rates).

(6) DNAL is available with the technical specifications package MT-1 as set forth in Technical Reference TR- NPL-000336.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-40

ACCESS SERVICE

(M) 6. Switched Access Service (Cont'd) (M) 6.3 Basic Serving Arrangement Descriptions (Cont'd) (T) 6.3.5 Dedicated Network Access Link (DNAL) BSA (Cont'd) (M)(S) (A) General (Cont'd) │ │ │ │ (7) DNAL may be used in conjunction with the following │ │ BSEs provided under this tariff: │ │ │ │ - Remote Make Busy │ │ - Remote Make Busy - Trunk Side │ │ (M)(S) (8) There are no features available with DNAL.

Reissued material is filed under authority of Special Permission No. 92-125 of the F.C.C.

Material and revised material appearing on this page formerly appeared on 1st Revised Page 98.42.22.1 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-41 Cancels 3rd Revised Page 6-41

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.4 Miscellaneous Services Descriptions

6.4.1 WATS Access Line Service

WATS Access Line Service is a service which utilizes Voice Grade Special Access Service to connect an end user premises with a WATS Access Line Service serving office. WATS Access Line Service is provided with either dial pulse or dual tone multifrequency address signaling and either loop start or ground start supervisory signaling. The choice of the type of signaling is at the option of the customer. A diagram and further description of WATS Access Line Service and applicable charges is provided in Section 7.2.11. (D)

(A) Originating WATS Access Line Service (Outward)

(1) WATS Access Line Service may access any FGA, FGB, FGD, BSA-A, BSA-B, or BSA-D Switched Access Service. When WATS Access Line Service is provided from a WATS serving office, the customer will be subject to the (D) rules governing Easy Access Dialing as specified in ) Section 13.3.1. (D)

(2) WATS Access Line Service may not be used to access 911, 0+ or 01.

(B) Terminating WATS Access Line Service (Inward)

(1) FGA, FGB, FGD, BSA-A, BSA-B, or BSA-D may access WATS Access Line Service.

(2) Intrastate IntraLATA 1+ and 101XXXX type calling in Arkansas, Kansas, Missouri, Oklahoma and Texas which is completed through the use of WATS Access Line Service, will continue to conform to the rules and regulations of each of these respective states.

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-42 Cancels 3rd Revised Page 6-42

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.4 Miscellaneous Services Descriptions (Cont'd)

6.4.2 800 Number Portability Access Service (800 NPAS)

(A) General

800 NPAS is an originating offering utilizing FGD/BSA-D trunk side Switched Access Service for the delivery of 800 calls. 800 NPAS includes all toll-free access services using the following dialing plans: 800, 888, 877, 866, 855, 844, 833 and 822. 800 NPAS allows the Telephone Company to route 800* calls to the appropriate 800 Service Provider. 800 NPAS allows end users to originate 800 calls on a 1+ basis without the use of an access code. The 800 NPAS Provider will be identified from the dialed 800 number (e.g., 1+800+NXX-XXXX or 1+888+NXX+XXXX). The 800 Service Provider has the option of receiving the dialed 800 number (e.g., 1+800+NXX+XXXX or 1+888+NXX+XXXX) or a translated ten-digit POTS number (i.e., 1+NPA+NXX+XXXX). For 800 NPAS calls outside of the North American Numbering Plan (NANP), the 800 Service Provider will receive a six digit data base translation.

When an end user originates an 800 NPAS call, the Telephone Company will determine how the call is to be routed, based on the 800 number dialed. If an 800 NPAS call originates in an end office not SSP equipped to provide the customer identification function, the call will be routed to an SSP equipped Telephone Company access tandem. Once the 800 NPAS Provider has been identified, the 800 call, served by the Telephone Company's SSP, will be routed to the 800 Service Provider's defined FGD/BSA-D trunk group.

800 NPAS provides the customer identification function required to determine the appropriate routing for an 800 number based on the geographic origination of the call, from a specific NPA/NXX, NPA, or LATA, up to any combination of the same.

The Federal Communications Commission (FCC) has concluded (N) that hoarding, defined as the acquisition of more toll free │ numbers than one intends to use for the provision of toll │ free service, as well as the sale of a toll free number by │ a private entity for a fee, is contrary to the public │ interest in the conservation of the scarce toll free number │ resource and contrary to the FCC's responsibility to promote the orderly use and allocation of toll free numbers.

* 800, as used throughout this tariff, includes 800, 888, 877, 866, 855, 844, 833 and 822 dialing plans. 888 is the next code scheduled to be implemented. The 877, 866, 855, 844, 833 and 822 dialing plans will be available when technically feasible and facilities permit, respectively, upon exhaust of the 800 and 888 dialing plans.

(This page filed under Transmittal No. 2634 )

Issued: May 22, 1997 Effective: June 6, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-42.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.4 Miscellaneous Services Descriptions (Cont'd)

6.4.2 800 Number Portability Access Service (800 NPAS)

(A) General (Cont'd)

(N) The Federal Communications Commission ("FCC") has concluded │ that warehousing, which the FCC defines as Responsible │ Organizations, either directly or indirectly through an │ affiliate, reserving toll free numbers from the SMS │ database without having an identified toll free subscriber │ for whom those numbers are being reserved, is an │ unreasonable practice under § 201(b) of the Communications │ Act and is inconsistent with the Commission's obligation │ under § 251(e) of the Communications Act to ensure that │ numbers are made available on an equitable basis; and (2) │ is a Responsible Organization does not have an identified │ toll free subscriber agreeing to be billed for service │ associated with each toll free number reserved from the │ database, or if a Responsible Organization does not have an │ identified, billed toll free subscriber before switching a │ number from reserved or assigned to working status, then │ there is a rebuttable presumption that the Responsible Organization is warehousing numbers. Responsible Organizations that warehouse numbers will be subject to penalties.

(This page filed under Transmittal No. 2642 )

Issued: June 20, 1997 Effective: July 5, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-43 Cancels 2nd Revised Page 6-43

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.4 Miscellaneous Services Descriptions (Cont'd)

6.4.2 800 Number Portability Access Service (NPAS) (Cont'd)

(A) General (Cont'd)

The following features are available with 800 NPAS:

(1) POTS Translation

The POTS Translation feature converts the 800 number into a designated Plain Old Telephone Service (POTS) 10 digit number. If the customer provides the POTS number associated with the 800 number and requests delivery of the POTS number in place of the 800 number, the Telephone Company will deliver the POTS number.

(2) Call Validation

The Call Validation feature ensures that calls originate only from an 800 Subscriber's customized service area. Calls originating outside the area will be screened and an out of band recording will be returned to the calling party.

(3) Call Handling and Destination

The Call Handling and Destination feature allows routing of 800 calls based on one or any combination of the following: time of day, day of week, percent allocation and specific 10 digit ANI.

(B) Provisioning

Originating 800 NPAS traffic must be provided over FGD or BSA-D trunk groups. The 800 Service Provider may use FGA, FGB, FGD, BSA-A, BSA-B, or BSA-D to terminate an 800 call. (D) When FGA, FGB, FGD, BSA-A, BSA-B, or BSA-D is used to (D) terminate an 800 call, the customer is required to deliver 800 calls to the Telephone Company in the standard POTS number North American Numbering Plan format.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-43.1 Cancels 4th Revised Page 6-43.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.4 Miscellaneous Services Descriptions (Cont'd)

6.4.2 800 Number Portability Access Service (NPAS) (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ (D)

(This page filed under Transmittal No. 2443 )

Issued: April 7, 1995 Effective: June 1, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-44 Cancels 3rd Revised Page 6-44

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.4 Miscellaneous Services Descriptions (Cont'd)

6.4.3 900 Access Service

(A) General

900 Access Service is an originating offering utilizing trunk side Switched Access Services. 900 Access Service allows the customer's end user to originate 900 calls on a one-plus (1+) basis without the use of an access code. (D)

When a customer's end user originates a 1+900+NXX-XXXX or 0+900+NXX-XXXX call, the Telephone Company will perform the customer identification function at a 900 Access Service screening office to determine the customer to which the call is to be routed. The customer identification function will consist of the 900 Access Service screening office examining the 900-NXX digits to determine which customer should receive the call. If a 900 Access Service call originates at an office not equipped to provide the customer identification function, the call will be routed to a tandem at which the function is available.

The following 1+900 Access Service calls will be blocked by the Telephone Company:

- calls dialed with a 101XXXX access code, - calls originated from coin telephones, and - calls originated from hotels and motels without call rating systems.

The following 0+900 Access Service calls will be blocked by the Telephone Company:

- calls dialed with a 101XXXX access code, - calls from Inmate Service, and (D) - calls originated to a customer that has not subscribed to 0+900 Access Service.

(This page filed under Transmittal No. 3409 )

Issued: April 27, 2015 Effective: May 12, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-45 Cancels 1st Revised Page 6-45

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.4 Miscellaneous Services Descriptions (Cont'd)

6.4.3 900 Access Service (Cont'd)

(B) Provisioning

If a customer requests 0+900 Access Service, it is the customer's responsibility to insure that 0+900 calls are provided in conjunction with the customer's credit card billing. Operator assisted calls are not provided with (D) 0+900 Access Service.

Unless prohibited by technical limitations, originating 1+900 Access Service traffic may, at the option of the customer, be combined in the same FGB, FGD, BSA-B, or BSA-D trunk group with the customer's other Access Service traffic. Where such technical limitations do exist, the Telephone Company will provide notification to the customer prior to establishment of 1+900 Access Service. When FGD or BSA-D becomes available in an end office, originating 1+900 Access Service traffic from that end office must be provided with FGD or BSA-D.

0+900 Access Service is available only when combined with 1+900 Access Service provided with FGD or BSA-D.

The customer may use FGA, FGB, FGD, BSA-A, BSA-B, or BSA-D to terminate a 900 Access Service call. When FGA, FGB, FGD, BSA-A, BSA-B, or BSA-D is used to terminate 900 Access Service, the customer is required to deliver 900 Access Service calls to the Telephone Company in the standard POTS number North American Numbering Plan format.

(This page filed under Transmittal No. 3433 )

Issued: August 29, 2016 Effective: September 13, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-45.1 Cancels 4th Revised Page 6-45.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.4 Miscellaneous Services Descriptions (Cont'd)

6.4.4 Advanced Carrier Identification Service (ACIS)

(A) General

Advanced Carrier Identification Service (ACIS) is an originating offering utilizing trunk side Switched Access Services and provides the ability for calls to be (D) delivered to access customers based on the dialed Personal Communication Service (PCS) subscriber number. ACIS will use the dialed PCS subscriber number (e.g., 1+500+NXX-XXXX) to identify the access customer (i.e., the transport carrier) to whom the call will be delivered and then deliver the call to the access customer.

The ACIS functionality will be available in suitably equipped end offices or access tandems. If an ACIS routed call originates in an office not equipped to provide the identification function, the call will be routed to an office where the function is available.

ACIS allows the PCS subscriber to originate calls using one-plus (1+), zero plus (0+) and from public coin phones. The Telephone Company will block an ACIS originated call if it originates through a 101XXXX access code, zero minus (0-) dialing or 0- Transfer Service.

(B) Provisioning

Unless prohibited by technical limitations, originating traffic that is routed using ACIS may, at the option of the customer, be combined in the same FGB, FGD, BSA-B, or BSA-D trunk group with the customer's other Access Service traffic. Where such technical limitations do exist, the Telephone Company will provide notification to the customer prior to establishment of ACIS. This arrangement is only available when a customer utilizes tandem routed FGD or BSA-D. For this arrangement, premium access charges will apply for such originating ACIS usage. When FGD or BSA-D becomes available in an end office, originating ACIS routed traffic from that end office must be provided with FGD or BSA-D.

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-45.2 Cancels 1st Revised Page 6-45.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.4 Miscellaneous Services Descriptions (Cont'd)

6.4.4 Advanced Carrier Identification Service (ACIS) (Cont'd)

(B) Provisioning (Cont'd)

The customer may use FGA, FGB, FGD, BSA-A, BSA-B, or BSA-D (D) to terminate a call that was routed using ACIS. When FGA, FGB, FGD, BSA-A, BSA-B, or BSA-D is used to terminate a (D) call that was routed using ACIS, the customer is required to deliver ACIS originated calls to the Telephone Company in the standard POTS number North American Numbering Plan format.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-45.3 Cancels Original Page 6-45.3

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.5 Switched Transport (M) │ Switched Transport is provided to customers of Switched Access Services │ for the provision of transmission facilities between the customer's │ premises and end office switch(es) where the customer's traffic is │ switched to originate or terminate communications. │ │ Switched Transport provides a one-way or two-way voice frequency │ transmission path composed of facilities determined by the Telephone │ Company which permit the transport of calls in the originating │ direction and in the terminating direction--though not simultaneously. │ This voice frequency transmission path may be comprised of any form or │ configuration of plant capable of, and typically used in, the │ telecommunications industry for transmitting voice and associated │ telephone signals within the frequency bandwidth of approximately 300 │ to 3000 Hz. │ │ Switched Transport is comprised of various facilities, connections, │ features and functions. Switched Transport facilities and connections │ are set forth in 6.5.1 and 6.5.2 following. A listing and description │ of the available features and functions as well as matrices to identify │ the Feature Groups and BSAs with which the features and functions are │ associated is provided in 6.6.1 (Switched Transport Features). │ │ Switched Transport is ordered under the Access Order provisions set │ forth in Section 5 (Ordering for Access Service). Ordering provisions │ as set forth in 2.6 (Jointly Provided Access Services) will apply when │ more than one Exchange Telephone Company is involved in the provision │ of a Switched Transport facility. Rate elements for Switched Transport │ are defined in 6.8.1 (Rate Elements). Rates and nonrecurring charges │ for those rate elements are located in 6.9 (Rates and Charges). (M)

Material appearing on this page formerly appeared on Original Page 6-45.1.

Material previously appearing on this page now appears on 2nd Revised Page 6-45.5.

(This page filed under Transmittal No. 2405 )

Issued: December 1, 1994 Effective: January 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-45.4 Cancels 2nd Revised Page 6-45.4

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.5 Switched Transport (Cont'd)

6.5.1 Switched Transport Facilities

The following facilities provide the physical route a transmission path may take in transporting Switched Access communications between a customer's premises and an end office.

(A) Entrance Facility

An Entrance Facility provides the transmission path between a customer's premises and the Telephone Company's serving wire center for that premises. The Entrance Facility is dedicated to the use of a single customer and is available for use with all line side and trunk side Switched Access services. An Entrance Facility is provided even if the customer's premises and the serving wire center are located in the same building.

(B) Direct-Trunked Transport Facility

A Direct-Trunked Transport facility provides the transmission path between the serving wire center of a customer's premises and an end office. Direct-Trunked Transport facilities are dedicated to the use of a single customer and do not require switching at an access tandem. Direct-Trunked Transport facilities are available for use with all line side and trunk side Switched Access services.

Direct-Trunked Transport facilities are not available:

- to end offices that lack the recording and measuring capabilities needed to provide Direct-Trunked Transport,

- for 800 NPAS when the required SSP function is located at the access tandem, or

- to the tandem portion of a Class 4/5 switch for trunk side Switched Access Services, or

- when the required ACIS carrier identification function is located at the access tandem.

(This page filed under Transmittal No. 2442 )

Issued: March 23, 1995 Effective: May 7, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-45.5 Cancels 1st Revised Page 6-45.5

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.5 Switched Transport (Cont'd)

6.5.1 Switched Transport Facilities (Cont'd)

(B) Direct-Trunked Transport Facility (Cont'd)

The locations of SSP functions, Class 4/5 switches and offices lacking necessary recording and measuring capabilities are specified in the NECA Tariff F.C.C. No. 4.

(C) Tandem-Switched Transport Facility

A Tandem-Switched Transport facility provides the transmission path between the access tandem and an end (C) office and includes tandem switching functions. Tandem- │ Switched Transport facilities include circuits provided for (C) the common use of all customers who have requested tandem switching (from the access tandem to the end office). Tandem-Switched Transport facilities are available for use with all trunk side Switched Access services. Tandem- Switched Transport facilities are not available for use with line side Switched Access services.

6.5.2 Switched Transport Connections

Switched Transport is comprised of specific connection types. These connections may be either analog or digital. Analog connections are differentiated by spectrum and bandwidth; digital connections are differentiated by bit rate. The spectrum, bandwidth or bit rate selected by the customer may require multiplexing, as described in 6.6.1 (Switched Transport Features) to allow interconnection with other Switched Transport facilities or to a Telephone Company switch.

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-45.6 Cancels 1st Revised Page 6-45.6

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.5 Switched Transport (Cont'd) (M) │ 6.5.2 Switched Transport Connections (Cont'd) │ │ Each type of connection identifies a specific type of channel │ (i.e., Voice Grade, DS1 or DS3) which is provided for use with a │ Switched Access Service. However, such identification does not │ limit the customer's use of any particular channel to Switched │ Access Service only. A customer may elect to use some (but not │ all) of the channels in a Switched Transport facility for the │ provision of non-switched services as set forth in other sections │ of this tariff. Such arrangements will be provided as set forth │ in 6.8.12 (Shared Use). │ │ With one exception, the customer may choose the Switched │ Transport connection comprising the Switched Transport facility. │ For the tandem to end office portion of Tandem-Switched │ Transport, the Telephone Company will determine the type of │ connection used. For all other requests, the customer may │ specify the type of connection by specifying an interface group │ or a network channel code. Interface groups and network channel │ codes are set forth in 6.7.6 (Interface Groups) and 6.7.7 (DNAL │ Network Channel Interfaces). │ │ Each channel in a Switched Transport connection can be used to provide a transmission path. The following types of connections are available for all Switched Transport facilities.

Material appearing on this page formerly appeared on 1st Revised Page 6-45.4.

Material previously appearing on this page now appears on Original Page 6-45.8.

(This page filed under Transmittal No. 2405 )

Issued: December 2, 1994 Effective: January 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-45.7 Cancels 2nd Revised Page 6-45.7

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.5 Switched Transport (Cont'd)

6.5.2 Switched Transport Connections (Cont'd)

(A) Voice Grade

Voice Grade is provided in quantities of channels. Each Voice Grade channel provides voice frequency transmission capability in the nominal frequency range of 300 to 3000 hertz (HZ) and may be terminated two-wire or four-wire. (D) │ │ │ (D)

Technical Specifications for Voice Grade can be found in the following Technical Reference Publications:

TR-TSY-000335 PUB 41004, Table 4

(B) DS1

DS1 provides 24 channels for the transmission of nominal 56 kbps or 1.544 Mbps isochronous serial data. The actual bit rate and framing format is a function of the channel interface selected by the customer.

In addition to locations permitted in NECA Tariff F.C.C. No. (N)(x) 4, the Telephone Company will permit customers to multiplex │ (x) from a DS1 connection to a Voice Grade channel at the customer's serving wire center and terminate the resultant voice grade channel to any access tandem in the LATA.

Technical specifications for DS1 can be found in the following Technical Reference Publications:

TP-76625 PUB 62411 TR-INS-000342

(x) Filed under authority of Special Permission No. 91-258 of the F.C.C.

(This page filed under Transmittal No. 2442 )

Issued: March 23, 1995 Effective: May 7, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-45.8 Cancels Original Page 6-45.8

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.5 Switched Transport (Cont'd)

6.5.2 Switched Transport Connections (Cont'd)

(C) DS3

DS3 provides 28 DS1s or 672 channels and provides for transmission of nominal 44.736 Mbps isochronous serial data.

With DS3, customers may request either an electrical interface or an optical interface installed at their customer premises. For DS3 connections utilizing an electrical interface, the customer will receive an electrical signal with a transmission speed of 44.736 Mbps per channel. For DS3 connections utilizing an optical interface, the customer will receive an optical signal at the transmission speed associated with the equivalent number of DS3s requested on the Access Order.

Technical Specifications for DS3 can be found in the following Technical Reference Publications:

TP 76625 TR-INS-000342

(D) Reserved for Future Use (T)

(D)

(D)

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-45.9 Cancels Original Page 6-45.9

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.5 Switched Transport (Cont'd)

6.5.3 Hubbing

A hub is a Telephone Company designated wire center at which multiplexing functions are performed. There are three types of hubs: (1) Intermediate Multiplexing Hub, (2) Super Intermediate Multiplexing Hub, and (3) Terminus Multiplexing Hub. Not all types of multiplexing are available at all hub locations. Multiplexing functions are described in 6.6.1 (Switched Transport Features). Hubs are described in 7.1.3 (Hubs). Hub locations and the types of multiplexing available at each location are specified in the NECA Tariff F.C.C. No. 4.

For Switched Access, hubbing describes the termination of a Switched Transport facility to a hub office so that the facility can be multiplexed to a higher or lower capacity facility. These higher or lower capacity facilities can then be routed to different switches or locations. Hubbing is available for Entrance Facilities, Direct-Trunked Transport facilities and Tandem-Switched Transport facilities. (D) │ │ │ (D) Hubbing may occur on Tandem-Switched Transport on the interoffice link between the access tandem and the end office (where calls are switched to originate or terminate), but such hubbing is at the option of the Telephone Company and at no additional charge.

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-46 Cancels Original Page 6-46

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (T)

There are various features available with Switched Access Service. These features are provided as Switched Transport and Local Switching (i.e., common switching, transport termination or line termination) features. Basic service elements (BSEs) are unbundled options available only with basic serving arrangements.

Certain other features which may be available in connection with Switched Access Service are provided under the Telephone Company's local and general exchange service tariffs. These are:

- Custom Calling features (available with FGA or BSA-A), - Billed Number Screening (available with FGA, FGB, BSA-A and BSA-B), - IntraLATA extensions (available with FGA or BSA-A), - Remote Call Forwarding (Telebranch) (available with FGA or BSA-A).

6.6.1 through 6.6.4 provide matrices to identify the Switched Access (T) feature groups and basic serving arrangements and the Switched Transport and Local Switching features available with each, as well as descriptions of the features. 6.6.5 provides a matrix to identify the basic serving arrangements and basic service elements available with each basic serving arrangement.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-47 Cancels 4th Revised Page 6-47

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.1 Switched Transport Features

(A) Line Side and Trunk Side Available Feature Groups Feature Matrix A B D (D)

1) Customer Specified Entry Switch Receive Level X X X (D) 2) Customer Specification of Switched Transport Termination X 3) Supervisory Signaling - DX Supervisory Signaling X X (D) - SF Supervisory Signaling X X X (D) - E&M Type I Supervisory Signaling X X (D) - E&M Type II Supervisory Signaling X X (D) - E&M Type III Supervisory Signaling X (D) 4) Multiplexing X X X (D) 5) Tandem Signaling X

Available Basic Serving Arrangements Line Side Trunk Side A B D (D)

1) Customer Specified Entry Switch Receive Level X X X (D) 2) Customer Specification of Switched Transport Termination X 3) Supervisory Signaling - DX Supervisory Signaling X X (D) - SF Supervisory Signaling X X X (D) - E&M Type I Supervisory Signaling X X (D) - E&M Type II Supervisory Signaling X X (D) - E&M Type III Supervisory Signaling X (D) 4) Multiplexing X X X (D) 5) Tandem Signaling X

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-48 Cancels 1st Revised Page 6-48

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.1 Switched Transport Features (Cont'd)

(B) Feature Descriptions

Unless otherwise specified, these features are available with all Switched Transport facilities.

(1) Customer Specified Entry Switch Receive Level

- Available with FGA, FGB, FGD, BSA-A, BSA-B, and (D) BSA-D.

- This feature allows the customer with type B transmission to specify the receive transmission level at the first point of switching. The range of transmission levels which may be specified is described in Technical Reference TR-NWT-000334.

(2) Customer Specification of Switched Transport Termination

- Available only when FGB or BSA-B is provided with type B transmission specifications

- This feature allows the customer to specify, for FGB or BSA-B routed directly to an access tandem, a four-wire termination of the Switched Transport at the entry switch in lieu of a Telephone Company selected two-wire termination.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-49 Cancels 1st Revised Page 6-49

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.1 Switched Transport Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(3) Supervisory Signaling

- Available with FGA, FGB, FGD, BSA-A, BSA-B, and (D) BSA-D

- Duplex (DX) Supervisory Signaling

A form of signaling used to extend trunk circuit or signaling circuit E&M leads on to metallic facilities.

- Single Frequency (SF) Supervisory Signaling

A form of signaling designed to pass the necessary supervisory signals over voice- frequency transmission facilities without impairing the normal use of these facilities for speech.

- E&M Supervisory Signaling (Types I, II and III)

A method of signaling commonly used for connecting a signaling circuit to a trunk circuit. An E&M lead interface consists of two or four signaling conductors (in addition to the transmission path conductors).

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-50 Cancels 1st Revised Page 6-50

ACCESS SERVICE

6. Switched Access Service (Cont'd) (T)

6.6 Switched Access Features and Basic Service Elements (Cont'd) (T)

6.6.1 Switched Transport Features (Cont'd) (T)

(B) Feature Descriptions (Cont'd)

(3) Supervisory Signaling (Cont'd)

- Where the transmission parameters permit, and where signaling conversion is required by the customer to meet its signaling capability, the customer may order a Supervisory Signaling arrangement for each transmission path provided as follows:

Interface Group 1 - DX Supervisory Signaling; E&M Type I, E&M Type II, and E&M Type III Supervisory Signaling.

Interface Group 2 - DX Supervisory Signaling; E&M Type I, E&M Type II, and E&M Type III Supervisory Signaling; SF Supervisory Signaling.

Interface Groups 6 and 9 - These interface groups (C) may, at the option of the customer, be provided with individual transmission path SF Supervisory Signaling where such signaling is available in Telephone Company central offices. Generally such signaling is available only where the entry switch provides an analog, i.e., non-digital, interface to the transport termination and a portion of the facility between the analog entry switch and the customer's premises is analog. These supervisory signaling arrangements are not available in combination with the SS7 signaling feature described in 6.6.2(B).

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-50.1 Cancels 3rd Revised Page 6-50.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.1 Switched Transport Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(4) Multiplexing

- Available with FGA, FGB, FGD, BSA-A, BSA-B, and (D) BSA-D, where technically feasible and facilities permit, for Entrance Facilities and Direct- Trunked Transport facilities.

- This feature is also available with Expanded Interconnection.

- Multiplexing provides the capability of channelizing Switched Transport analog or digital facilities to individual services that require a lower capacity or bandwidth and is available only at certain Telephone Company end offices that have been designated as hubs. Four types of multiplexing are available and are described in (a) through (d) following; however, not all types of multiplexing are available at all hub locations. Hub locations, as well as the types of multiplexing provided, are specified in the NECA Tariff F.C.C. No. 4.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-50.2 Cancels Original Page 6-50.2

ACCESS SERVICE

6. Switched Access Service (Cont'd) (S) │ 6.6 Switched Access Features and Basic Service Elements (Cont'd) │ │ 6.6.1 Switched Transport Features (Cont'd) │ │ (B) Feature Descriptions (Cont'd) │ │ (4) Multiplexing (Cont'd) │ │ - Multiplexing is required when a customer requests │ to interconnect transport facilities of different │ capacities or bandwidths or when a customer │ requests to interconnect specific transport │ facilities with certain Telephone Company (S) switches. (D) │ │ │ │ │ │ (D)

- For each of the alternatives listed in (a) (S) through (d) following, the multiplexer is │ associated with the Switched Transport facility │ with the higher capacity or bandwidth (e.g., a │ DS3 to DS1 multiplexer is associated with the │ facility using a DS3 connection). (S)

Material is filed under authority of Special Permission No. 93-1034 of the F.C.C.

Reissued material is scheduled to become effective December 1, 1993.

(This page filed under Transmittal No. 2305 )

Issued: November 15, 1993 Effective: December 30, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-50.3 Cancels Original Page 6-50.3

ACCESS SERVICE

6. Switched Access Service (Cont'd) (S) │ 6.6 Switched Access Features and Basic Service Elements (Cont'd) │ │ 6.6.1 Switched Transport Features (Cont'd) │ │ (B) Feature Descriptions (Cont'd) │ │ (4) Multiplexing (Cont'd) │ │ (a) DS3 to DS1 │ │ Available with all Switched Transport facilities │ using DS3 connections. │ │ Provides an arrangement that converts a DS3 │ signal to and from 28 DS1 channels. Conversion │ is accomplished using digital time division │ multiplexing. │ │ (b) DS1 to Voice Grade │ │ Available with all Switched Transport facilities │ using DS1 connections. │ │ Provides an arrangement that converts a DS1 │ connection to and from 24 voice grade channels. │ Conversion is accomplished using digital time │ division multiplexing. │ │ (c) Supergroup to Group │ │ This alternative is obsolete and limited to │ existing installations at existing locations for (S) existing customers as of January 1, 1994. (C)

Material is filed under authority of Special Permission No. 93-1212 of the F.C.C. to become effective January 1, 1994.

Reissued material is filed under authority of Special Permission No. 93-1212 of the F.C.C. and is deferred until January 1, 1994.

(This page filed under Transmittal No. 2321 )

Issued: December 23, 1993 Effective: December 30, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-50.4 Cancels 2nd Revised Page 6-50.4

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.1 Switched Transport Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(4) Multiplexing (Cont'd)

(c) Supergroup to Group (Cont'd)

Provides for an arrangement that converts a Supergroup channel (i.e., a wideband analog channel with a bandwidth of 312 khz to 552 khz) to and from five Group channels (i.e., five wideband analog channels with bandwidths of 60 khz to 108 khz). Conversion is accomplished using frequency division multiplexing.

(d) Group to DS1

This alternative is obsolete and limited to existing installations at existing locations for existing customers as of January 1, 1994.

Provides for an arrangement that converts two Group channels (i.e., two wideband analog channels with bandwidths of 60 khz to 108 khz) to and from a DS1 channel. Conversion is accomplished using frequency division multiplexing.

(5) Tandem Signaling

- Available with FGD and BSA-D in suitably equipped end offices. (C)

- This feature provides for the forwarding of the trunk group identification and Carrier Identification Code (CIC) associated with a direct dialed originating call transported via Direct- Trunked Transport Facilities or Switched Transport Connections from an end office to the tandem signaling customer. Technical limitations require the exclusion of 800 traffic from this arrangement when that traffic originates in a Telephone Company end office which is not SSP equipped.

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-50.5 Cancels 2nd Revised Page 6-50.5

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.1 Switched Transport Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(5) Tandem Signaling (Cont'd)

- The tandem signaling customer will conform with all (N) the technical requirements associated with the │ provision of tandem switched transport as outlined │ in Technical Reference FR-NWT-000064 and TR-NWT- │ 000034. While the Telephone Company will work │ cooperatively with the tandem signaling customer to │ help ensure such compliance, failure to conform may │ result in discontinuance of service. (N)

(D) (D)

- Overflow is permitted only to a Direct-Trunked (T) Transport Facility or a Switched Transport │ Connection. │ │ - Tandem signaling will be provisioned with one-way │ trunks only. (T)

- The FGD customer of record is responsible for (N) providing the Percent Tandem Signaling Factor │ reports as set forth in 6.7.17. │ │ - Where the tandem signaling customer so desires, the │ Telephone Company will bill all terminating usage │ terminated over one trunk group to one customer. │ If the tandem signaling customer requests the │ Telephone Company to bill more than one customer │ per terminating trunk group, the tandem signaling │ customer must provide the Telephone Company with │ the terminating billing data as set forth in 6.7.18 │ (Tandem Signaling Terminating Billing Data). The tandem signaling customer must specify the billing option upon ordering the tandem signaling feature.

Certain material previously appearing on this page now appears on 2nd Revised Page 6-50.4 and Original Page 6-50.6.

Revised material is filed under authority of Special Permission No. 95-81 of the F.C.C.

(This page filed under Transmittal No. 2420 )

Issued: January 20, 1995 Effective: January 24, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-50.6 Cancels Original Page 6-50.6

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.1 Switched Transport Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(5) Tandem Signaling (Cont'd)

- The tandem signaling Customer must obtain a letter (C) of authorization from the FGD Customer specifying that their traffic will be routed via an alternate access tandem provider. Additionally, a written copy of the letter of authorization must be furnished to the Telephone Company if a dispute arises with respect to the authorization for the (C) applicable Services. When the FGD Customer (T) utilizes the service(s) of a tandem signaling Customer, it will be the obligation of the FGD (T) Customer to monitor the actions of the tandem (T) signaling Customer to ensure that the FGD (T) Customer's desired service interconnections and (T) grades of service are maintained.

(This page filed under Transmittal No. 3305 )

Issued: September 1, 2010 Effective: September 16, 2010

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 6-51 Cancels 11th Revised Page 6-51

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features

(A) Feature Matrix Available Feature Groups A B D

1) Alternate Billing Indicator X 2) Alternate Traffic Routing -Multiple Customer Switching System X X -End Office Alternate Routing X X 3) Automatic Number Identification (ANI) X 4) Automatic Number Identification (ANI)/ Charge Number Parameter X 5) Band Advance Arrangement for use with WATS Access Line Service X X X 6) Call Denial on Line or Hunt Group X 7) Carrier Identification Code (CIC) X X 8) Carrier Identification Code Parameter (CIP) X 9) Carrier Selection Parameter X 10) 64 Clear Channel Capability (64 CCC) X 11) Cut-Through X (D) 12) Dial Pulse Address Signaling (T) 13) End Office End User Line Service (T) Screening for use with WATS Access Line Service X 14) FGD or BSA-D with 950 Access X (T) 15) Flexible Automatic Number (T) Identification (Flex-ANI) X 16) Hunt Group Arrangement X (T) 17) Hunt Group Arrangement for use (T) with WATS Access Line Service X X X

(This page filed under Transmittal No. 3393 )

Issued: August 11, 2014 Effective: August 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 6-52 Cancels 8th Revised Page 6-52

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(A) Feature Matrix (Cont'd) Available Feature Groups A B D (D)

19) Immediate Dial Pulse Address Signaling X (D) 20) International Carrier Feature X 21) MicroLink I Access Capability X 22) Multifrequency Address Signaling X X (D) 23) Multiple 64 Clear Channel Capability (64 CCC) X 24) Nonhunting Number Arrangement X 25) Nonhunting Number for use with Hunt Group Arrangement or Uniform Call Distribution Arrangement for use with WATS Access Line Service X X X (D) 26) Overlap Outpulsing X 27) Service Class Routing X (D) 28) Service Code Denial on Line or Hunt Group X 29) Signaling System 7 (SS7) Signaling X 30) Trunk Access Limitation X (D) 31) Uniform Call Distribution Arrangement X 32) Uniform Call Distribution Arrangement for use with WATS Access Line Service X X X (D) 33) Up to 7 Digits Outpulsing X 34) Wink Start Address Signaling X X (D)

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 6-53 Cancels 12th Revised Page 6-53

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(A) Feature Matrix (Cont'd) Available Basic Serving Arrangements Line Side Trunk Side A B D

1) Alternate Billing Indicator X 2) Automatic Number identification (ANI) X 3) Band Advance Arrangement for use with WATS Access Line Service X X X 4) Call Denial on Line or Hunt Group X 5) Carrier Identification Code (CIC) X 6) Carrier Identification Code Parameter (CIP) X 7) Carrier Selection Parameter X 8) 64 Clear Channel Capability (64 CCC) X 9) Cut-Through X (D) 10) Dial Pulse Address Signaling X (T) 11) End Office End User Line Service Screening (T) for use with WATS Access Line Service X 12) FGD or BSA-D with 950 Access X (T) 13) Hunt Group Arrangement for use with WATS (T) Access Line Service X X X 14) Immediate Dial Pulse Address Signaling X (T) 15) International Carrier Feature X 16) MicroLink I Access Capability X 17) Multifrequency Address Signaling X X 18) Multiple 64 Clear Channel Capability (64 CCC) X 19) Nonhunting Number for use with Hunt Group (T) Arrangement or Uniform Call Distribution Arrangement for use with WATS Access Line Service X X X 20) Overlap Outpulsing X (T) 21) Service Class Routing X 22) Service Code Denial on Line or Hunt Group X 23) Signaling System 7 (SS7) Signaling X 24) Trunk Access Limitation X 25) Uniform Call Distribution Arrangement for (T) use with WATS Access Line Service X X X 26) Up to 7 Digit Outpulsing X (T) 27) Wink Start Address Signaling X X (T)

(This page filed under Transmittal No. 3393 )

Issued: August 11, 2014 Effective: August 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-54 Cancels 1st Revised Page 6-54

ACCESS SERVICE

6. Switched Access Service (Cont'd) (T) 6.6 Switched Access Features and Basic Service Elements (Cont'd) (T) 6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions

(1) Alternate Billing Indicator

Available with terminating FGA and terminating BSA-A in electronic end offices where technically feasible.

This feature provides the capability for the switch translations of the dial tone office of the FGA or BSA-A service to pass the ANI information indicator 07 on all terminating calls.

(2) Alternate Traffic Routing

This feature is provided as two alternatives, only one of which may be selected for a particular trunk or trunk group.

(a) End Office Alternate Routing

- Available with FGB and FGD (ordered in trunks rather than capacity) in suitably equipped end offices. [End Office Alternate Routing for use with BSA-B and BSA-D is provided as a BSE as specified in 6.6.5(B).]

- This feature provides an alternate routing arrangement via two routes: one route via an access tandem and one direct route. The feature allows the customer's originating traffic from the end office to be offered first to the direct trunk group until that trunk group is fully loaded and then overflow to the access tandem group. Features which require direct routing (e.g., seven-digit ANI telephone number for FGB and Dial Pulse Station Signaling) are not available on the tandem route.

- MicroLink I traffic cannot be alternate routed if analog facilities are deployed in the alternate route.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-55 Cancels 2nd Revised Page 6-55

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(2) Alternate Traffic Routing (Cont'd)

(b) Multiple Customer Switching Systems

- Available with FGB and FGD in suitably (D) equipped end office or access tandem switches. [Multiple Customer Switching Systems for use with BSA-B, BSA-D is provided as a BSE as specified in 6.6.5(B)] (D)

- This feature provides the capability of directing originating traffic from an end office or access tandem to a trunk group (the "high usage group") until that group is fully loaded, and then delivering additional originating traffic (the "overflowing" traffic from the same end office or access tandem) to a different trunk group (the "final" group). These trunk groups may be terminated at the customer's switching systems on the same or different premises. The customer shall specify the last trunk ECCS desired for the high usage group.

- MicroLink I traffic cannot be alternate routed if analog facilities are deployed in the alternate route.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-56 Cancels 5th Revised Page 6-56

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(3) Automatic Number Identification (ANI)

- Available with FGB, FGD, and BSA-B. [Ten digit ANI(D) for use with BSA-D is provided as a BSE as specified in 6.6.5(B).]

The ANI feature is an end office software function which is associated on a call-by-call basis with:

- all individual transmission paths in a trunk group routed directly between an end office and a customer's premises, or

- all individual transmission paths in a trunk group between an end office and an access tandem, and a trunk group between an access tandem and a customer's premises, where technically feasible.

- This feature provides the automatic transmission of:

- information indicators to identify the calling party's class of service for billing, routing and special handling purposes, and

- a seven or ten digit telephone number to identify the calling station of calls originating in the LATA.

The seven or ten digit telephone number will be transmitted on all calls except those originating from multiparty lines, coin stations and coinless pay telephones using FGB or BSA-B, when an ANI failure has occurred or where ANI is not provided to an SSP equipped office for 800 NPAS.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-57 Cancels 5th Revised Page 6-57

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(3) Automatic Number Identification (ANI) (Cont'd)

(a) The information indicator (ii) assignments listed below will be provided to customers with FGB, (D) FGD, BSA-B or BSA-D and identify: (T)

00 - telephone number is the station billing number - no special treatment required; 01 - multiparty line - telephone number is a 4- and cannot be identified so the number must be obtained via an operator or in some other manner; 02 - ANI failure has occurred in the end office switch which prevents identification of calling telephone number, so it must be obtained by operator or in some other manner; 06 - hotel/motel originated call which requires room number identification; 07 - coinless station, hospital, inmate, etc. call which requires special screening or handling by the customer; 20 - call is an Automatic Identified Outward Dialed (AIOD) call from customer premises equipment. The ANI telephone number is the listed telephone number of the customer and is not the telephone number of the calling party; and 27 - coin call.

Customers with FGD may receive additional ii assignments by ordering the Flex ANI feature described in 6.6.2(B)(16), following. (T)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-58 Cancels 5th Revised Page 6-58

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(3) Automatic Number Identification (ANI) (Cont'd)

(b) In addition to the information indicators, the seven or ten digit telephone number will be provided to customers for each feature group or BSA as described below:

- Seven Digit ANI

FGB or BSA-B - Seven digit ANI is available with both FGB and BSA-B only when they are directly routed.

(D)

(D)

Seven digit ANI is not available with SS7 signaling.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-58.1 Cancels 1st Revised Page 6-58.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd) (T)

6.6.2 Local Switching - Common Switching Features (Cont'd) (T)

(B) Feature Descriptions (Cont'd)

(3) Automatic Number Identification (ANI) (Cont'd)

(b) (Cont'd)

- Ten Digit ANI

FGD - Ten digit ANI is only available with FGD. [Ten digit ANI for use with BSA-D is provided as a BSE as specified in 6.6.5(B).] The ten digit telephone number will be transmitted on all calls except those identified as multiparty line, ANI failure or where ANI is not provided to an SSP equipped office for 800 NPAS, in which case only the NPA will be transmitted (in addition to the information indicators described preceding).

The Charge Number Parameter is equivalent to ten digit ANI when SS7 signaling is ordered.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-59 Cancels 4th Revised Page 6-59

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(4) Automatic Number Identification (ANI)/Charge Number Parameter

- Available with FGD. Also available with BSA-D as a BSE as specified in 6.6.5(B)

- See definition of Ten Digit ANI in (3) preceding.

(5) Band Advance Arrangement for Use with WATS Access Line Service

- Available with FGA, FGB, FGD, BSA-A, BSA-B, and (D) BSA-D in association with two or more WATS Access Line Service groups

- Provides for the automatic overflow of terminating calls to a WATS Access Line Service group, when that group has exceeded its call capacity, to another WATS Access Line Service group with a band designation equal to or greater than that of the overflowing WATS Access Line Service group. This arrangement does not provide for call overflow from a group with a higher band designation to one with a lower one.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-60 Cancels 3rd Revised Page 6-60

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(6) Call Denial on Line or Hunt Group

- Available with FGA and BSA-A

- Allows for the screening of terminating calls. The screening does not affect calls to 411, 911, 800, 900, 555-1212 and ACIS. This feature is (C) provided in all Telephone Company electronic end offices, and, where available, in electromechanical end offices.

- Local Exchange Restriction. The screening is set up to allow calls to complete only to a Telephone Company specified set of NXXs within the Telephone Company local exchange calling area of the dial tone office in which the arrangement is provided. All other "toll" calls are routed to a reorder tone or recorded announcement.

- LATA Restriction. The screening is set up to allow calls to complete only to those valid NXX codes within the LATA. All other calls are routed to a reorder tone or recorded announcement.

(This page filed under Transmittal No. 2405 )

Issued: December 2, 1994 Effective: January 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-61 Cancels 7th Revised Page 6-61

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(7) Carrier Identification Code (CIC)

- Available with FGB, FGD, BSA-B and BSA-D

- This feature permits the customer to establish or add a CIC, change an existing CIC or delete an existing CIC used in conjunction with the customer's service.

(8) Carrier Identification Code Parameter (CIP)

- Available with FGD and BSA-D that has SS7 Signaling in suitably equipped end offices or access tandem switches.

- Provides for the transmission of the Carrier Identification Code (CIC) to the customer within the Initial Address Message (IAM) of an originating FGD or BSA-D call. This optional feature transmits the CIC of the presubscribed carrier or the CIC selected when the end user originated a call using a 101XXXX access code. (C) CIP is available at the end office and is billed on a per call basis.

- Technical Specifications for CIP are set forth in Technical Reference GR-394-CORE.

(This page filed under Transmittal No. 2720 )

Issued: August 17, 1998 Effective: September 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-62 Cancels 4th Revised Page 6-62

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(9) Carrier Selection Parameter (CSP)

- Available with FGD and BSA-D

- Provides for the automatic transmission of a signaling indicator which signifies to the customer whether or not the call being processed originated from a presubscribed line. If the line was presubscribed, the indicator will signify if the end user did or did not dial (C) 101XXXX. This feature is provided with SS7 (C) signaling.

(10) 64 Clear Channel Capability (64 CCC)

- Available with FGD and BSA-D that has SS7 Signaling in suitably equipped end offices or access tandem switches.

- Provides the customer with an increase in usable bandwidth from 56 Kbps to 64 Kbps per trunk data stream across the network. Clear Channel Capability is provided only on a 1.544 Mbps facility and requires the customer signal at the channel interface to conform to Bipolar with Eight Zero Substitution (B8ZS) line code format as described in Transport Systems Generic Requirements (TSGR): Common Requirements; TR-TSY-000499. This feature is provided with SS7 Signaling and is available where technically feasible and facilities permit. These locations are specified in the National Exchange Carrier Association, Inc., Tariff F.C.C. No. 4, Wire Center and Interconnection Information.

(This page filed under Transmittal No. 2720 )

Issued: August 17, 1998 Effective: September 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-63 Cancels 5th Revised Page 6-63

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(11) Cut-Through

- Available with FGD and BSA-D

- This feature allows end users to reach the customer's premises by dialing 101XXXX + #. This feature provides for connection of the call to the premises of the customer indicated by the 101XXXX code upon receipt of the # digit which indicates end of dialing. The Telephone Company will not record any other dialed digits for these calls.

(12) (D)

(D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-64 Cancels 3rd Revised Page 6-64

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(13) (D)

(D)

(14) End Office End User Line Service Screening for Use with WATS Access Line Service

- Available with FGD and BSA-D in association with (D) WATS Access Line Service in most Telephone Company electronic end offices and, where available, in electromechanical end offices

- Provides the ability to verify that an end user has dialed a called party address (by screening the called NPA and/or NXX on the basis of geographical bands selected by the Telephone Company) which is in accordance with that end user's service agreement with the customer, e.g., WATS.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-65 Cancels 6th Revised Page 6-65

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(15) FGD or BSA-D with 950 Access

- Available with FGD or BSA-D where technically feasible

- This feature provides for the routing of originating calls from end offices, utilizing a (C) customer's 950-0XXX or 950-1XXX access code, to the customer's FGD or BSA-D trunks and using FGD signaling protocols and technical specifications. The 950-0XXX or 950-1XXX traffic can be routed to the customer directly or through an access tandem over FGD or BSA-D trunks with the customer's standard FGD or BSA- D traffic.

(16) Flexible Automatic Number Identification (Flex ANI)

- Available with FGD in suitably equipped end offices and in association with the ANI feature. (Flex ANI for use with BSA-D is provided as a BSE as specified in 6.6.5(B).)

- Provides the ability to add values to the existing information indicators (ii) that are available with the ANI feature. The customer will receive all new ii codes that are assigned by the North American Numbering Plan Administrator as they become available and are activated in Telephone Company switches. Flex ANI is provided per end office and on a Carrier Identification Code (CIC) basis. The technical requirements for Flex ANI are contained in the Bellcore LSSGR FSD 20-20-0100, Issue 1, March, 1987.

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-66 Cancels 4th Revised Page 6-66

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(17) Hunt Group Arrangement

- Available with FGA [Hunt Group Arrangements for use with BSA-A is provided as a BSE as specified in Section 6.6.5(B)]. (T)

- Provides the ability to sequentially access one of two or more line side connections in the originating direction, when the access code of the line group is dialed. This feature is provided in all Telephone Company end offices. MTS/WATS-type FGA and FGA FX/ONAL services cannot be mixed in the same hunt group arrangement.

(18) Hunt Group Arrangement for Use with WATS Access Line Service

- Available with FGA, FGB, FGD, BSA-A, BSA-B, and BSA-D, in association with WATS Access Line Service, in all Telephone Company end offices in which WATS Access Line Service is provided. (T)

- Provides the ability to sequentially access one of two or more WATS Access Line Services in the terminating direction, when the hunting number of the WATS Access Line Service group is forwarded from the customer to the Telephone Company.

(This page filed under Transmittal No. 3390 )

Issued: May 23, 2014 Effective: June 7, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-67 Cancels 6th Revised Page 6-67

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(19) Immediate Dial Pulse Address Signaling

- Available with FGB and BSA-B (D)

- Provides for the forwarding of dial pulses from the Telephone Company end office to the customer without the need of a start-pulsing signal from the customer.

(20) International Carrier Feature

- Available with FGD and BSA-D at end offices or access tandems equipped for International Direct Distance Dialing (IDDD)

- This feature provides for the forwarding of international calls to the customer designated by the end user. This feature also provides for the forwarding of international calls of one or more international carriers to the customer (i.e., the Telephone Company is able to route originating international calls to a customer other than the one designated by the end user either through presubscription, 101XXXX dialing). This arrangement requires the provision of written verification to the Telephone Company that the customer is authorized to forward such calls. The written verification must be in the form of a letter of agency authorizing the customer to order the feature on behalf of the international carrier.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-68 Cancels 3rd Revised Page 6-68

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(21) MicroLink I Access Capability

- Available with FGD and BSA-D in suitably equipped end offices or access tandem switches

- Provides the capability to originate and terminate digital data at speeds up to 56 kbps. MicroLink I Access Capability establishes the connection between the Telephone Company's MicroLink I switched digital data service and the customer's digital network. Segregated or common FGD or BSA-D trunk groups will be provided, as requested by the customer, between the customer designated premises and suitably equipped end offices or access tandems. Segregated trunk groups will be used to transmit digital data traffic only. Common FGD and BSA-D trunk groups will be used to transmit digital data traffic as well as voice traffic. Alternate Traffic Routing is only provided as a feature as specified in (B)(2) preceding and as a BSE as specified in (T) 6.6.5(B)(1). Transmission specifications and maintenance limits are specified in 6.7.8 (Transmission Specifications).

(This page filed under Transmittal No. 2357 )

Issued: May 17, 1994 Effective: July 1, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-69 Cancels 5th Revised Page 6-69

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(22) Multifrequency Address Signaling

- Available with FGB, FGD, BSA-B, and BSA-D (D)

- Provides for the transmission of number information and control signals, e.g., number address signals, automatic number identification, between the end office switching systems and the customer's premises (in either direction). Multifrequency signaling arrangements make use of pairs of frequencies out of a group of six frequencies. Specific information transmitted is dependent upon feature group and call type, i.e., POTS, coin or operator. This feature is not available in combination with SS7 signaling.

(23) Multiple 64 Clear Channel Capability (64 CCC)

- Available with direct routed FGD and BSA-D that has SS7 Signaling and 64 CCC in suitably equipped end offices

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-69.1 Cancels 1st Revised Page 6-69.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(23) Multiple 64 Clear Channel Capability (64 CCC) (Cont'd)

- Provides the ability, where technically feasible and facilities permit, to set up circuit switched digital connections from 64 Kbps to 1536 Kbps, synchronous, in 64 Kbps increments of bandwidth on a dialable real-time basis and supports unrestricted digital information (UDI) bearer capabilities. Each 64 Kbps of bandwidth is provided over a FGD or BSA-D trunk. This feature will be provided in accordance with the specifications described in Generic Requirements for the Switched DS1/Switched Fractional DS1 Service Capability from an ISDN Interface (SWF- DS1/ISDN), TR-NWT-001203; and Common Channel Signaling (CCS) Network Interface Specification Supporting Switched DS1/Switched Fractional DS1 Service Capability (SWF-DS1), TR-NWT-001357.

(24) Nonhunting Number Arrangement

- Available with FGA in association with a multiline hunt or uniform call distribution group. Where available, this feature is provided in Telephone Company electronic end offices only. [Nonhunting Number Arrangement for use with BSA-A is provided as a BSE as specified in Section (T) 6.6.5(B)]. (T)

- Provides an arrangement for an individual line within a multiline hunt or uniform call distribution group that provides access to that line within the group when it is idle or provides busy tone when it is busy, when the nonhunting number is dialed.

(This page filed under Transmittal No. 3390 )

Issued: May 23, 2014 Effective: June 7, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-70 Cancels 5th Revised Page 6-70

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(25) Nonhunting Number for Use with Hunt Group Arrangement or Uniform Call Distribution Arrangement for Use with WATS Access Line Service

- Available with FGA, FGB, FGD, BSA-A, BSA-B, and (D) BSA-D, in association with WATS Access Line Service and in suitably equipped electronic end offices in which WATS Access Line Service is used for the completion of terminating calls

- Provides an arrangement for an individual WATS Access Line Service within a multiline hunt or uniform call distribution group that provides access to a specific WATS Access Line Service within the hunt or uniform call distribution group when it is idle or provides busy tone when it is busy, when the nonhunting number is dialed.

(26) Overlap Outpulsing

- Available with FGD and BSA-D where technically feasible

- Decreases call setup delay by starting to establish the connection to a customer's switch before the last four digits of the called number have been dialed.

Reissued material is filed under authority of Special Permission No. 94-625 of the F.C.C. and is deferred until July 1, 1994.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 6-71 Cancels 9th Revised Page 6-71

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(27) Service Class Routing

- Available with FGD and BSA-D in suitably equipped end (D) offices or access tandem switches

- This feature provides the capability of directing originating traffic from an end office to a trunk group to a customer designated premises, based upon the following:

- coin, multiparty, or hotel/motel;

- service prefix indicator (e.g., 0-, 0+, 00-, 01+ or 011+);

- service access code (e.g., 500 Service, 800 Database Service or 900 NXX Service).

- Customers who order this feature must provide the Telephone Company the number of trunks and the appropriate codes to be established in each end office or access tandem switch.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-72 Cancels 7th Revised Page 6-72

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(28) Service Code Denial on Line or Hunt Group

- Available with FGA and BSA-A

- Allows for the screening of terminating calls within the LATA, and for disallowing completion of calls to 0-, 555 and N11 (e.g., 411 and 911). This feature is provided where available in all Telephone Company electronic end offices and electromechanical end offices.

(29) Signaling System 7 (SS7) Signaling

- Available with FGD and BSA-D

- Provides common channel out of band transmission of address and supervisory SS7 protocol signaling information between the end office switching system or the tandem office switching system and the customer's designated premises. The signaling information is transmitted over facilities provided with the Common Channel Signaling/Signaling System 7 Interconnection Service as specified in Section 25 following. This feature will be provided in accordance with the SS7 Interconnect specifications described in Switching System Requirements for Interexchange Carrier Interconnection Using the Integrated Services Digital Network User Part (ISDNUP), TR-TSY-000394 and TP-76638 (Southwestern Bell Telephone Company Common Channel Signaling/Signaling System 7 Network Interface Specifications, Supplement No. 2, TR-TSV-000905).

- Where technically feasible and facilities permit, (M) this feature includes the transport of the Access │ Transport Parameter (ATP) and will be provided in │ accordance with the SS7 Interconnect │ specifications described in Switching System │ Requirements Supporting ISDN Access Using the │ ISDN User Part (ISUP), TR-TSY-000444; ISDN │ Routing and Digit Analysis, TR-TSY-000448; │ Network Transmission Interface and Performance │ Specifications Supporting Integrated Services │ Digital Network (ISDN), TR-TSY-000938; and Common Channel Signaling Network Interface Specification Supporting ISDN, TR-TSV-000962.

Material appearing on this page formerly appeared on 6th Revised Page 6-72.1.

(This page filed under Transmittal No. 2432 )

Issued: February 24, 1995 Effective: April 12, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-72.1 Cancels 7th Revised Page 6-72.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(29) Signaling System 7 (SS7) Signaling (Cont'd)

- This feature includes the transport in the originating direction of the Calling Party Number (CPN) Parameter where technically feasible and where the Telephone Company has made CPN privacy restriction available to the originating end user. The CPN Parameter provides for the automatic transmission of the ten digit directory number, associated with a calling station, to the customer's premises for calls originating in the LATA. The ten digit telephone number consists of the NPA plus the seven digit telephone number, which may or may not be the same number as the calling station's charge number. The CPN will be coded as presented, or restricted via a "privacy indicator" for delivery to the called end user.

The CPN Parameter must be transported without alteration or modification to the connecting carrier, the terminating telephone company, or an end user when the customer has a direct connection. Customers must honor and transmit the unaltered "privacy indicator" within the CPN Parameter.

(30) Trunk Access Limitation

- Available with FGD and BSA-D in suitably equipped (D) Telephone Company end offices

- Provides for the routing of originating 900 service calls to a specified number of transmission paths in a trunk group or, at the option of the Telephone Company, a trunk group dedicated to 900 Service, in order to limit (choke) the completion of such traffic to the customer. Calls to the designated service which could not be completed over the subset of transmission paths in the trunk group, i.e., the choked calls, would be routed to reorder tone.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-72.2 Cancels 7th Revised Page 6-72.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(30) Trunk Access Limitation (Cont'd)

- Customers who order this feature must provide the Telephone Company the number of trunks and/or the appropriate codes to be established in each end office or access tandem switch.

(31) Uniform Call Distribution Arrangement

- Available with FGA. Where available, this feature is provided in Telephone Company electronic end offices only. [Uniform Call Distribution for use with BSA-A is provided as a BSE as specified in Section 6.6.5(B)]. (T)

- Provides a type of multiline hunting arrangement which provides for an even distribution of calls among the available lines in a hunt group.

(32) Uniform Call Distribution Arrangement for Use with WATS Access Line Service

- Available with FGA, FGB, FGD, BSA-A, BSA-B, and BSA-D, in association with WATS Access Line Service and in suitably equipped electronic end offices in which WATS Access Line Service is provided. (T)

- Provides a type of multiline hunting arrangement which provides for an even distribution of terminating calls among the available WATS Access Line Services in the hunt group.

(This page filed under Transmittal No. 3390 )

Issued: May 23, 2014 Effective: June 7, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-72.3 Cancels 6th Revised Page 6-72.3

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.2 Local Switching - Common Switching Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(33) Up to 7 Digits Outpulsing

- Available with FGB and BSA-B

- Provides for the end office capability of providing up to 7 digits of the uniform access code (950-XXXX) to the customer's premises. The customer may request that all or only a portion of the 7 digits in the access code be forwarded. The access code digits are provided to the customer's premises using multifrequency signaling. Transmission of the digits precede the forwarding of ANI if that feature is provided.

(34) Wink Start Address Signaling

- Available with FGB, FGD, BSA-B, and BSA-D (D)

- Provides a method of indicating to the originating switch the readiness of the far-end switch to receive address signaling. This is done by providing a battery to ground reversal. This feature is not available in combination with SS7 signaling.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-73 Cancels 1st Revised Page 6-73

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.3 Local Switching - Transport Termination Features

(A) Feature Matrix Available Feature Groups A B D (D) Line Side Terminations

Two Way Operation:

1) Dial Pulse Address Signaling with Ground Start Supervisory Signaling X 2) Dial Pulse Address Signaling with Loop Start Supervisory Signaling X 3) Dual Tone Multifrequency Address Signaling with Ground Start Supervisory Signaling X 4) Dual Tone Multifrequency Address Signaling with Loop Start Supervisory Signaling X

Originating Operation:

1) Ground Start Supervisory Signaling X 2) Loop Start Supervisory Signaling X

Terminating Operation:

1) Dial Pulse Address Signaling with Ground Start Supervisory Signaling X 2) Dial Pulse Address Signaling with Loop Start Supervisory Signaling X 3) Dual Tone Multifrequency Address Signaling with Ground Start Supervisory Signaling X 4) Dual Tone Multifrequency Address Signaling with Loop Start Supervisory Signaling X

(This page filed under Transmittal No. 3390 )

Issued: May 23, 2014 Effective: June 7, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-74 Cancels 1st Revised Page 6-74

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.3 Local Switching - Transport Termination Features (Cont'd)

(A) Feature Matrix (Cont'd)

Available Basic Serving Arrangements Line Side Trunk Side A B D (D)

Line Side Terminations

Two Way Operation:

1) Dial Pulse Address Signaling with Ground start Supervisory Signaling X 2) Dial Pulse Address Signaling with Loop Start Supervisory Signaling X 3) Dual Tone Multifrequency Address Signaling with Ground Start Supervisory Signaling X 4) Dual Tone Multifrequency Address Signaling with Loop Start Supervisory Signaling X

Originating Operation:

1) Ground Start Supervisory Signaling X 2) Loop Start Supervisory Signaling X

Terminating Operation:

1) Dial Pulse Address Signaling with Ground Start Supervisory Signaling X 2) Dial Pulse Address Signaling with Loop Start Supervisory Signaling X 3) Dual Tone Multifrequency Address Signaling with Ground Start Supervisory Signaling X 4) Dual Tone Multifrequency Address Signaling with Loop Start Supervisory Signaling X

(This page filed under Transmittal No. 3390 )

Issued: May 23, 2014 Effective: June 7, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-75 Cancels 1st Revised Page 6-75

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.3 Local Switching - Transport Termination Features (Cont'd)

(A) Feature Matrix (Cont'd)

Available Feature Groups A B D (D) Trunk Side Terminations

1) Dial Pulse Station Signaling X 2) Operator Trunk - Coin, Non-Coin, or Combined Coin and Non-Coin X 3) Operator Trunk - Full Feature (D) 4) Standard Trunk for Originating, Terminating or Two-Way Operation X X (D)

Trunk Side Terminations Available Basic Serving Arrangements Line Side Trunk Side A B D (D)

1) Dial Pulse Station Signaling X 2) Operator Trunk - Coin, Non-Coin, or Combined Coin and Non-Coin (D) 3) Operator Trunk - Full Feature X 4) Standard Trunk for Originating, Terminating, or Two-way Operation X X X

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-76 Cancels Original Page 6-76

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.3 Local Switching - Transport Termination Features (Cont'd)

(B) Feature Descriptions

Line Side Terminations are provided with either dial pulse or dual tone multifrequency address signaling and loop start or ground start supervisory signaling. The various signaling arrangement combinations are specified in the Feature Matrix in (A) preceding.

(1) Line Side Terminations

(a) Dial Pulse Address Signaling

- Available with FGA and BSA-A

- Provides for the transmission of number information, e.g., called number, between the end office switching systems and the customer's premises (in either direction) by means of direct current pulses.

(b) Dual Tone Multifrequency Address Signaling

- Available with FGA and BSA-A

- Provides for the transmission of number information, e.g., called number, between the end office switching systems and the customer's premises (in either direction) by means of two voice-frequency components, one from a group of four low frequencies and the other from a group of four high frequencies.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-77 Cancels Original Page 6-77

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.3 Local Switching - Transport Termination Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(1) Line Side Terminations (Cont'd)

(c) Ground-Start Supervisory Signaling

- Available with FGA, BSA-A and WATS Access Line Services that terminate on the line side of the switch

- A form of line supervision in which both a terminal request for service and a network seizure for an incoming call are indicated by grounding one of the line conductors.

(d) Loop-Start Supervisory Signaling

- Available with FGA and BSA-A

- A form of line supervision in which a terminal request for service is indicated to the network by the terminal allowing loop current to flow.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-78 Cancels 1st Revised Page 6-78

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.3 Local Switching - Transport Termination Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(2) Trunk Side Terminations

(a) Dial Pulse Station Signaling

- Available with FGB or BSA-B only on a directly trunked basis

- This feature provides for the transmission of called party address signaling from rotary dial stations to the customer's premises for originating calls. This feature is provided in the form of a specific type of transport termination.

(b) (D)

(D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-79 Cancels Original Page 6-79

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.3 Local Switching - Transport Termination Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(2) Trunk Side Terminations (Cont'd)

(b) Operator Trunk - Coin, Non-Coin, or Combined Coin and Non-Coin (Cont'd)

- Coin. This arrangement provides for initial coin return control and routing of 0+, 0-, 1+, 01+ or 011+ prefixed originating coin calls requiring operator assistance to the customer's premises. This arrangement is provided at Telephone Company electronic end offices and other Telephone Company end offices where equipment is available.

- Non-Coin. This arrangement provides for the routing of 0+, 0-, 1+, 01+ or 011+ prefixed originating non-coin calls requiring operator assistance to the customer's premises. This arrangement is provided at Telephone Company electronic and electromechanical end offices.

- Combined Coin and Non-Coin. This arrangement provides for initial coin return control and routing of 0+, 0-, 1+ or 011+ prefixed originating operator assisted coin and non-coin calls requiring operator assistance to the customer's premises. This arrangement is provided at Telephone Company electronic end offices and other Telephone Company end offices where equipment is available.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-80 Cancels 1st Revised Page 6-80

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.3 Local Switching - Transport Termination Features (Cont'd)

(B) Feature Descriptions (Cont'd)

(2) Trunk Side Terminations (Cont'd)

(c) Operator Trunk - Full Feature

- Available with FGD or BSA-D, in suitably equipped end offices. Because operator assisted coin and non-coin calling traffic is routed over dedicated trunk groups for operator assisted calls, this arrangement is only provided in association with the Service Class Routing feature.

- This feature is a trunk type termination which provides the initial coin return control function to the FGD or BSA-D customer's operator. This arrangement provides for initial coin return control and routing of 0+, 0-, 00-, 1+, 01+ or 011+ prefixed originating operator assisted coin and non-coin calls requiring operator assistance to the customer's premises. This arrangement must be ordered in conjunction with the ANI feature and is not available with SS7 signaling.

(d) Standard Trunk for Originating, Terminating or Two-Way Operation

- Provides a two-way voice frequency transmission path between the customer's premises and the Telephone Company facilities. This two-way voice frequency transmission path permits the transport of calls in the originating direction and/or in the terminating direction, but not simultaneously.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-81 Cancels Original Page 6-81

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.4 Local Switching - Line Termination Features

(A) Feature Matrix (Per WATS Access Line)

Two Way Operation:

1) Dial Pulse Address Signaling with Ground Start Supervisory Signaling 2) Dial Pulse Address Signaling with Loop Start Supervisory Signaling 3) Dual Tone Multifrequency Address Signaling with Ground Start Supervisory Signaling 4) Dual Tone Multifrequency Address Signaling with Loop Start Supervisory Signaling

Originating Operation:

1) Dial Pulse Address Signaling with Ground Start Supervisory Signaling 2) Dial Pulse Address Signaling with Loop Start Supervisory Signaling 3) Dual Tone Multifrequency Address Signaling with Ground Start Supervisory Signaling 4) Dual Tone Multifrequency Address Signaling with Loop Start Supervisory Signaling

Terminating Operation:

1) Ground Start Supervisory Signaling 2) Loop Start Supervisory Signaling

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-82 Cancels Original Page 6-82

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd) (T)

6.6.4 Local Switching - Line Termination Features (Cont'd) (T)

(B) Feature Descriptions

Line Terminations are provided with either dial pulse or dual tone multifrequency address signaling and loop start or ground start supervisory signaling. The various Line Termination signaling arrangement combinations provided via this tariff are specified in the Feature Matrix in (A) preceding. Dial pulse and dual tone multifrequency address signaling and loop start and ground start supervisory signaling are described in Section 6.6.3(B) preceding.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-83 Cancels 4th Revised Page 6-83

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements

(A) Basic Service Element Matrix

Available Basic Serving Arrangements Line Side Trunk Side A B D DNAL (D) Basic Service Elements

(1) Alternate Traffic Routing -End Office Alternate Routing X X -Multiple Customer Switching System X X (D) (2) Automatic Number Identification (ANI)/ Charge Number Parameter X (3) Direct Inward Dialing (DID) X (4) Flexible Automatic Number Identification (Flex-ANI) X (5) Multiline Hunt Group -Circular Hunting X -Preferential Hunting X -Regular Line Hunting X (6) Nonhunting Number Arrangement X (7) Queuing X (8) Recorded Announcements X X X (9) Remote Make Busy X X (10) Remote Make Busy - Trunk Side X X (D) (11) Simplified Message Desk Interface (SMDI) X (12) Simplified Message Desk Interface - Expanded (SMDI-E) X (13) Uniform Call Distribution Arrangement X

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-84 Cancels Original Page 6-84

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions

(1) Alternate Traffic Routing

This BSE is provided as two alternatives, only one of which may be selected for a particular trunk or trunk group.

(a) End Office Alternate Routing

Available with BSA-B and BSA-D (ordered in trunks as opposed to capacity) in suitably equipped end offices.

This alternative provides an alternate routing arrangement via two routes: one route via an access tandem and one direct route. End Office Alternate Routing allows the customer's originating traffic from the end office to be offered first to the direct trunk group until that group is fully loaded and then to overflow to the access tandem group. Features which require direct routing (e.g., the seven-digit ANI telephone number for BSA-B and Dial Pulse Station Signaling) are not available on the tandem route.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-85 Cancels 1st Revised Page 6-85

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd)

(1) Alternate Traffic Routing (Cont'd)

(b) Multiple Customer Switching Systems

Available with BSA-B and BSA-D in suitably (D) equipped end offices or access tandem switches.

This alternative provides the capability of directing originating traffic from an end office or access tandem to a trunk group (the "high usage group") until that group is fully loaded, and then delivering additional originating traffic (the "overflowing" traffic from the same end office or access tandem) to a different trunk group (the "final" group). These trunk groups may be terminated at the customer's switching systems on the same or different premises. The customer shall specify the last trunk ECCS desired for the high usage group.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-86 Cancels 3rd Revised Page 6-86

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd)

(2) Automatic Number Identification (ANI)

- Available with BSA-D:

The ANI BSE is an end office software function which is associated on a call-by-call basis with:

- all individual transmission paths in a trunk group routed directly between an end office and a customer's premises, or

- all individual transmission paths in a trunk group between an end office and an access tandem, and a trunk group between an access tandem and a customer's premises, where technically feasible.

- This BSE provides the automatic transmission of:

- information indicators to identify the calling party's class of service for billing, routing and special handling purposes, and

- a ten digit telephone number to identify the calling station of calls originating in the LATA.

The ten digit number consists of the Numbering Plan Area (NPA) plus the seven digit telephone number. The ten digit telephone number will be transmitted on all calls except those identified as multiparty line, ANI failure or where ANI is not provided to an SSP equipped office for 800 NPAS, in which case only the NPA will be transmitted (in addition to the information indicators described below).

The Charge Number Parameter is equivalent to ten digit ANI when SS7 signaling is ordered.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-87 Cancels 4th Revised Page 6-87

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd)

(2) Automatic Number Identification (ANI) (Cont'd)

The information indicator (ii) assignments listed below will be provided to customers with BSA-D and identify:

00 - telephone number is the station billing number - no special treatment required; 01 - multiparty line - telephone number is a 4-party line and cannot be identified - number must be obtained via an operator or in some other manner; 02 - ANI failure has occurred in the end office switch which prevents identification of calling telephone number - must be obtained by operator or in some other manner; 06 - hotel/motel originated call which requires room number identification; 07 - coinless station, hospital, inmate, etc. call which requires special screening or handling by the customer; 20 - call is an Automatic Identified Outward Dialed (AIOD) call from customer premises equipment. The ANI telephone number is the listed telephone number of the customer and is not the telephone number of the calling party; and 27 - coin call.

Customers with BSA-D may receive additional ii assignments by ordering the Flex ANI BSE as described in 6.6.5(B)(4) following.

(This page filed under Transmittal No. 2571 )

Issued: August 30, 1996 Effective: October 14, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-87.1 Cancels 1st Revised Page 6-87.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd)

(3) Direct Inward Dialing (DID) (N) │ - Available with originating BSA-D in suitably │ equipped end offices and subject to the │ availability of DID telephone numbers. DID may │ not be used in conjunction with other BSEs or │ optional features. │ │ - This BSE provides an originating option for a DID │ trunk side termination whereby the switch │ delivers all or part of the dialed number to the │ customer premises. The Telephone Company will │ use either multifrequency, dual tone │ multifrequency or dial pulse address signaling, │ depending on the end office switching equipment │ available, to deliver the called telephone number │ to the customer premises. If additional address │ signaling is required by the customer, it must be │ provided by the customer's end user using inband │ tone address signals which will not be │ regenerated by the Telephone Company and will be │ subject to the ordinary transmission capabilities │ of the switched transport provided. │ │ The customer must order at least one DID Trunk │ Termination and 100 DID telephone numbers. │ Additional groups of 100 DID telephone numbers │ may be ordered. All trunks within a DID trunk │ group must be equipped with the DID BSE and must │ use the same type of signaling. The Telephone │ Company will not perform intercept announcements │ on vacant DID telephone numbers. Intercept │ announcements must be provided by the customer. (N)

Material previously appearing on this page now appears on 3rd Revised Page 6-88.

(This page filed under Transmittal No. 2571 )

Issued: August 30, 1996 Effective: October 14, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-88 Cancels 3rd Revised Page 6-88

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd)

(4) Flexible Automatic Number Identification (Flex ANI)

- Available with BSA-D in suitably equipped end offices and in association with the ANI BSE.

- Provides the ability to add values to the existing information indicators (ii) that are available with the ANI BSE. The customer will receive all new ii codes that are assigned by the North American Numbering Plan Administrator as they become available and are activated in Telephone Company switches. Flex ANI is provided per end office and on a Carrier Identification Code (CIC) basis. The technical requirements for Flex ANI are contained in the Bellcore LSSGR FSD 20-20-0100, Issue 1, March, 1987.

(5) Multiline Hunt Group

This BSE is provided as three alternatives.

MTS/WATS and MTS/WATS-type BSA-A and FX/ONAL BSA-A services cannot be mixed in the same hunt group arrangement.

(a) Circular Hunting(1) (C)

Available with BSA-A and Packet Switched MicroLink II in electronic end offices where technically feasible. Packet Switched MicroLink II is provided for in Section 14.

This alternative provides the ability to sequentially access terminals in a hunt group with the hunting sequence beginning at the start- hunt terminal and continuing through the hunt group until an idle terminal is reached or the terminal preceding the start-hunt terminal is reached. The call will terminate in the first idle terminal. If no idle terminal is encountered, a busy tone will be returned to the calling party.

(1) For MicroLink II Service arrangements, this feature is obsolete and limited to existing installations, for existing customers, as of September 30, 1997 and will no longer be available after April 1, 1999.

(This page filed under Transmittal No. 2658 )

Issued: September 15, 1997 Effective: September 30, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-89 Cancels 3rd Revised Page 6-89

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd)

(5) Multiline Hunt Group (Cont'd)

(b) Preferential Hunting(1) (C)

Available with BSA-A and Packet Switched MicroLink II. Where available, this alternative is only provided in electromechanical end offices. Packet Switched MicroLink II is provided for in Section 14.

This alternative provides the ability to establish a separate hunting list to be associated with each terminal in a hunt group. At the customer's option, this list may or may not include all terminals in the hunt group. When a call is made directly to a busy terminal in a multiline hunt group equipped with preferential hunting, a linear hunt is performed over the preferential hunt terminals in the order requested by the customer. The call will terminate in the first idle terminal in the preferential hunt list. If all of the terminals in the preferential hunt are busy, and if the hunt list did not include all lines in the hunt group, hunting continues sequentially until an idle terminal is encountered or the last terminal in the hunt group is encountered. If all terminals are busy, a busy tone will be returned to the calling party. This alternative is not available with the Uniform Call Distribution Arrangement and Nonhunting Number Arrangement BSEs.

(1) For MicroLink II Service arrangements, this feature is obsolete and limited to existing installations, for existing customers, as of September 30, 1997 and will no longer be available after April 1, 1999.

(This page filed under Transmittal No. 2658 )

Issued: September 15, 1997 Effective: September 30, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-90 Cancels 3rd Revised Page 6-90

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd)

(5) Multiline Hunt Group (Cont'd)

(c) Regular Line Hunting(1) (C)

Available with BSA-A and Packet Switched MicroLink II in electronic and electromechanical end offices where technically feasible. Packet Switched MicroLink II is provided for in Section 14.

This alternative provides the ability to sequentially access terminals in a hunt group. Hunting begins with the terminal number associated with the called number and continues sequentially until an idle terminal is found or the last terminal number is reached. If no idle terminal number is found, a busy tone is returned to the calling party.

(1) For MicroLink II Service arrangements, this feature is obsolete and limited to existing installations, for existing customers, as of September 30, 1997 and will no longer be available after April 1, 1999.

(This page filed under Transmittal No. 2658 )

Issued: September 15, 1997 Effective: September 30, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-91 Cancels 2nd Revised Page 6-91

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd)

(6) Nonhunting Number Arrangement (T)

Available with BSA-A in association with Multiline Hunt Group or UCD Arrangement. Where available, this BSE is only provided in Telephone Company electronic end offices.

This BSE provides an arrangement to access an individual line within a Multiline Hunt Group or Uniform Call Distribution Arrangement when the line is idle. When the Nonhunting Number is dialed and the line is busy, a busy tone will be provided to the caller.

(7) Queuing (T)

Available with BSA-A in association with the Uniform Call Distribution (UCD) Arrangement BSE and where facilities permit. Where available, this BSE is only provided in Telephone Company electronic end offices.

When all terminals in a Uniform Call Distribution Arrangement are busy, queuing allows for an incoming call to be placed in queue to await an available terminal in the UCD Arrangement. When a call is placed in queue, audible ringing is returned to the customer and no further indication is sent until a terminal completes the call. The call that has been in queue the longest will be the first call serviced when a terminal becomes available. The maximum number of calls that can be placed in queue is dependent upon the total number of lines in the multiline hunt group. If the incoming call cannot be placed in queue, the calling party will receive a busy tone.

(This page filed under Transmittal No. 2571 )

Issued: August 30, 1996 Effective: October 14, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-92 Cancels 3rd Revised Page 6-92

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd)

(8) Recorded Announcements (T)

Available with BSA-A, BSA-B and BSA-D and in association with Queuing or Remote Make Busy. Where available, this BSE in only provided in electronic end offices.

This BSE provides for standard announcements on calls. When combined with Queuing, calls receive a timed audible ringing tone followed by a repeating announcement that can be separated by silence or audible ringing tone as selected by the customer. When combined with Remote Make Busy or Remote Make Busy - Trunk Side, announcements do not repeat. Calls receive only a timed audible ringing tone followed by an announcement.

(9) Remote Make Busy (T)

Available with BSA-A and DNAL in electronic end offices where facilities permit.

This BSE provides the customer with the ability to place lines into a busy or overflow condition by customer activation of a CPE key or toggle switch located at the customer's premises. When requested for lines arranged in a Multiline Hunt Group, Remote Make Busy will be provided to the entire hunt group. Calls to lines placed in a busy or overflow condition will receive busy tones. Lines remain in the busy or overflow condition until released by the customer. At the customer's option, busy tone conditioning may be replaced with Recorded Announcements. Charges for Recorded Announcements are in addition to charges for the Remote Make Busy BSE. Recorded Announcements are described in (8) preceding.

(This page filed under Transmittal No. 2571 )

Issued: August 30, 1996 Effective: October 14, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-93 Cancels 3rd Revised Page 6-93

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd)

(9) Remote Make Busy (Cont'd) (T)

Provisioning this BSE requires the use of a DNAL BSA to pass the network control information used to place the line(s) into a busy or overflow condition (or to release those lines for use once they have been busied out). The DNAL must be associated with the BSA-A line(s) arranged for use with the BSE. Rates and charges for the DNAL BSA are in addition to the rates and charges for the associated line side BSA and the BSE.

(10) Remote Make Busy - Trunk Side (T)

Available with BSA-B, BSA-D and DNAL in electronic end offices where facilities permit.

This BSE provides the customer with the ability to place a BSA-B or BSA-D trunk or trunk group into a busy condition by customer activation of a CPE key or toggle switch located at the customer's premises. This BSE is available on a trunk group basis. If only one trunk is to be busied out, it must be in a trunk group separate from other trunks which are not to be busied out. Calls to trunks placed in a busy condition will receive busy tones. Trunks remain in the busy condition until released by the customer. At the customer's option, busy tone conditioning may be replaced with Recorded Announcements or Alternate Traffic Routing. Charges for Recorded Announcements and Alternate Traffic Routing are in addition to charges for Remote Make Busy - Trunk Side. Recorded Announcements and Alternate Traffic Routing are described in (8) and (1) preceding. (T)

Provisioning this BSE requires the use of a DNAL BSA (M) to pass the network control information used to place │ the trunk(s) into a busy or overflow condition (or to │ release those trunks for use once they have been │ busied out). The DNAL must be associated with the │ BSA-B or BSA-D trunk(s) arranged for use with the BSE. │ Rates and charges for the DNAL BSA are in addition to the rates and charges for the trunk side BSA and the BSE.

Certain material appearing on this page formerly appeared on 2nd Revised Page 6- 94.

(This page filed under Transmittal No. 2571 )

Issued: August 30, 1996 Effective: October 14, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-94 Cancels 2nd Revised Page 6-94

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd)

(11) Simplified Message Desk Interface (SMDI) (N) │ Available with BSA-A using a Multiline Hunt Group BSE │ and Special Access Voice Grade Service (Technical │ Specification Package VG-10) where technically │ feasible in suitably equipped end offices. Voice │ Grade Special Access Service (Technical Specification │ Package VG-10) is provided for in Section 7 (Special │ Access Service). SMDI may not be used in conjunction │ with SMDI-E BSE in the same BSA-A Multiline Hunt │ Group. │ │ This BSE provides the ability to transmit and receive │ call information using a line side BSA-A in a │ Multiline Hunt Group. Call detail information is │ transmitted to the customer's premises using Voice │ Grade Special Access Service (Technical Specification │ Package VG-10). SMDI requires a 1200 or 2400 baud │ data termination on a four-wire Voice Grade Special │ Access Service (Technical Specification Package VG-10) │ in every office a customer wants access capability. │ The Voice Grade Special Access Service (Technical │ Specification Package VG-10) must be associated with │ the BSA-A line(s) arranged for use with the BSE. │ Rates and charges for the Voice Grade Special Access │ Service (Technical Specification Package VG-10) are │ set forth in Section 7.3.4 and are in addition to the │ rates and charges for the associated line side BSA-A │ and the BSE. │ │ SMDI provides originating call detail information and │ the capability to activate and deactivate message │ waiting indication on the customer's line. SMDI is │ used to transmit the called number, the calling number │ and a call forwarding indicator (e.g., call forwarding │ busy line, call forwarding don't answer and direct │ call). Where customer equipment exists, SMDI will │ allow a customer to activate a message waiting │ indicator in the form of intermittent dial tone │ (stutter dial tone) on their end user's line. Message │ waiting indication capabilities is limited to │ customers who are served from the same office │ (intraoffice) as SMDI. (N)

Certain material previously appearing on this page now appears on 4th Revised Page 6-93 and Original Page 6-94.2.

(This page filed under Transmittal No. 2571 )

Issued: August 30, 1996 Effective: October 14, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-94.1 Cancels 2nd Revised Page 6-94.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd)

(12) Simplified Message Desk Interface - Expanded (N) (SMDI-E) │ │ Available with BSA-A using a Multiline Hunt Group │ BSE and Voice Grade Special Access Service │ (Technical Specification Package VG-10) where │ technically feasible in suitably equipped end │ offices. Voice Grade Special Access Service │ (Technical Specification Package VG-10) is provided │ for in Section 7 (Special Access Service). SMDI-E │ may not be used in conjunction with SMDI BSE in the │ same BSA-A Multiline Hunt Group. │ │ This BSE provides the ability to serve multiple │ offices with a single Voice Grade Special Access │ Service (Technical Specification Package VG-10) │ using the SS7 signaling network to pass data and │ signaling information. SMDI-E enables the customer │ to transmit and receive call information using a │ line side BSA-A in a Multiline Hunt Group. SMDI-E │ information is transmitted to the customer's │ premises using a Voice Grade Special Access Service │ (Technical Specification Package VG-10). SMDI-E │ requires a 9600 baud data termination on a four- │ wire Voice Grade Special Access Service (Technical │ Specification Package VG-10). The Voice Grade │ Special Access Service (Technical Specification │ Package VG-10) must be associated with the BSA-A │ line(s) arranged for use with the BSE. Rates and │ charges for the Voice Grade Special Access Service │ (Technical Specification Package VG-10) are set │ forth in Section 7.3.4 and are in addition to the │ rates and charges for the associated line side BSA- │ A and the BSE. │ │ SMDI-E provides originating call detail information │ and the capability to activate and deactivate │ message waiting indication on the customer's line. │ SMDI-E is used to transmit the called number, the │ calling number and a call forwarding indicator │ (e.g., call forwarding busy line, call forwarding │ don't answer and direct call). Where customer │ equipment exists, SMDI-E allows a customer to │ activate a message waiting indicator in the form of │ intermittent dial tone (stutter dial tone) on their │ end user's line. (N)

(This page filed under Transmittal No. 2571 )

Issued: August 30, 1996 Effective: October 14, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-94.2 Cancels Original Page 6-94.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.6 Switched Access Features and Basic Service Elements (Cont'd)

6.6.5 Basic Service Elements (Cont'd)

(B) Descriptions (Cont'd) (N) (12) Simplified Message Desk Interface - Expanded (SMDI-E) (Cont’d)

The Alternate Network Delivery (AND) feature provides the capability for the customer to direct its Message Waiting Indicator (MWI) messages toward the customer’s Alternate Network Service Provider within the LATA. This feature is included with SMDI-E service.

Customers subscribing to the AND feature must provide the Telephone Company with information specifying:

(1) The single pre-defined central office switch point code of the Alternate Network for the MWI messages to be routed.

(2) A list of all the alternate network provider’s end user station NPA-NXXs receiving MWI messages (these must be served out of the same LATA as the Voice Grade Special Access Service – Technical Specification Package VG-10).

The customer’s Alternate Network Service Provider must provide service capability to receive and complete MWI delivery. The customer is responsible for any and all charges that the Telephone Company may incur from the customer’s Alternate Network Service Provider for receiving MWI messages from the Telephone Company.

(13) Uniform Call Distribution (UCD) Arrangement

Available with BSA-A in most Telephone Company electronic end offices.

This BSE provides for an even distribution of calls over the available lines in a Multiline Hunt Group. This BSE is not available with any alternative of the Multiline Hunt Group BSE.

(This page filed under Transmittal No. 3106 )

Issued: November 28, 2005 Effective: December 13, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-95 Cancels 4th Revised Page 6-95

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning

Customers have the option of having their Switched Access Services provided under either a bundled structure (i.e., provisioned as feature group services) or under an unbundled structure (i.e., provisioned as BSAs). The selection of the bundled or unbundled structure must be made on a per LATA basis per customer and all services must convert at the same time. As set forth in 6.8.9(C) (Conversion of Existing Feature Groups to Basic Serving Arrangements), there is no charge to convert from the bundled structure to the unbundled structure.

6.7.1 Manner of Provisioning

(A) Switched Access is furnished in either quantities of lines, channels or trunks as outlined below:

Lines Trunks Channels

FGA X FGB X (D) FGD X BSA-A X BSA-B X (D) BSA-D X DNAL X

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-96 Cancels Original Page 6-96

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (T)

6.7.1 Manner of Provisioning (Cont'd) (T)

(A) (Cont'd)

Trunks are differentiated by type and directionality of traffic carried over a Switched Access Service arrangement. Differentiation of traffic is necessary for the Telephone Company to properly design Switched Access Service to meet the traffic carrying capacity requirement of the customer.

(B) There are two major traffic categories, originating and terminating:

Originating traffic represents access capacity within a LATA for carrying traffic from the end user to the customer.

Terminating traffic represents access capacity within a LATA for carrying traffic from the customer to the end user or from the customer to the Directory Assistance location.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-97 Cancels 2nd Revised Page 6-97

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.1 Manner of Provisioning (Cont'd)

(C) To allow customers to segregate originating traffic into separate trunk groups, originating traffic is further (C) categorized into domestic, 700, 800, 900, ACIS, operator and IDDD, etc. Domestic traffic represents access capacity for carrying only domestic traffic other than 700, 800, (C) 900, ACIS and operator traffic. IDDD traffic represents access capacity for carrying only international traffic. (C) 700, 800, 900 and ACIS represents access capacity for (C) carrying, respectively, only 700, 800, 900 and ACIS traffic. Operator traffic represents access capacity for carrying only operator traffic. When ordering such types of access capacity, the customer must specify domestic, (C) 700, 800, 900, ACIS, operator or IDDD type traffic.

(D) Switched Access Service is ordered under the provisions specified in Section 5 (Ordering for Access Service). Also included in that section are charges associated with ordering Switched Access Service.

(This page filed under Transmittal No. 2405 )

Issued: December 2, 1994 Effective: January 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-98 Cancels 1st Revised Page 6-98

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (T)

6.7.2 Design and Traffic Routing of Switched Access Service (T)

When ordering line side or trunk side Switched Access Services, the customer must, at a minimum, specify the Switched Transport (N) facilities to be used (i.e., Entrance Facility, Direct-Trunked │ Transport facility, and Tandem-Switched Transport facility). │ When specifying the Switched Transport facilities to be used, the │ customer must indicate if the facilities are existing or new. │ The customer is required to specify whether the service should be (N) provided by originating only, terminating only or two-way.

For FGA, FGB, BSA-A and BSA-B, the line or trunk directionality and traffic routing of the Switched Access Service between the customer's premises and the entry switch are determined by the customer's order for service. The Telephone Company will compare the customer's request with its own traffic routing plan and available facilities and equipment to determine whether the customer's request can be met. The Telephone Company is (T) responsible for selection of facilities from the interface to any switching point and to the end offices where capacity is ordered. Except for FGB and BSA-B, the Telephone Company will also decide whether trunk side access will be provided through the use of two-wire or four-wire trunk terminating equipment. For FGB and BSA-B, the customer may order the Customer Specification of Switched Transport Termination feature.

Certain material previously appearing on this page now appears on Original Page 6-98.1.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-98.1 Cancels 3rd Revised Page 6-98.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.2 Design and Traffic Routing of Switched Access Service (Cont'd)

Selection of facilities, equipment and traffic routing of the service are based on standard engineering methods, available facilities and equipment, and the Telephone Company traffic routing plans. If the customer desires routing or directionality different from that determined by the Telephone Company, the Telephone Company will work cooperatively with the customer in determining whether the service is to be routed directly to an end office or through an access tandem switch and the directionality of the service. Customers may also request (S) diverse routing for DS1 and DS3 level Switched Transport │ facilities as set forth in Section 27 (Diversity). (S)

Additionally, when the customer has ordered a dedicated FGD or BSA-D trunk group with the MicroLink I Access Capability feature, the Telephone Company will ensure that these facilities are capable of supporting 56 kbps digital data.

When the customer has ordered a dedicated FGD or BSA-D trunk group with SS7 Signaling and 64 CCC, where technically feasible and facilities permit, the Telephone Company will ensure that these facilities are capable of supporting 64 Kbps digital data.

Reissued material is filed under authority of Special Permission No. 94-625 of the F.C.C. and is deferred until August 2, 1994.

(This page filed under Transmittal No. 2359 )

Issued: May 27, 1994 Effective: June 2, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-99 Cancels 1st Revised Page 6-99

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.3 Design Blocking Probability

The Telephone Company will design and monitor the capacity of the Switched Access Services to be provided to meet the blocking probability criteria described following.

FGA or BSA-A

No design blocking criteria apply for FGA or BSA-A

FGB or BSA-B

No design blocking criteria apply for FGB or BSA-B

DNAL

No design blocking criteria apply for DNAL

(D)

(D)

FGD or BSA-D

The design blocking objective for FGD and BSA-D will be no greater than one percent (.01) between the point of termination at the customer's premises and the end office switch, whether the traffic is directly routed without an alternate route or routed via an access tandem. The Telephone Company will use standard traffic engineering methods, specified in reference document Technical Reference PUB SR-EOP-000191 Trunk Traffic Engineering Concepts and Applications, to determine the number of transmission paths required to achieve this level of blocking.

In the event of media stimulated mass calling, though design blocking of no greater than one percent (.01) remains the Telephone Company's objective for FGD and BSA-D, this objective (D) cannot be guaranteed.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-100 Cancels Original Page 6-100

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.3 Design Blocking Probability (Cont'd)

The Telephone Company will perform routine measurement functions to assure that an adequate number of transmission paths are in service. The Telephone Company will recommend that additional capacity be ordered by the customer when additional paths are required to reduce the measured blocking to the designed blocking level. Dedicated trunk groups provided for the purpose of trunk access limitation will be taken into consideration when recommending additional capacity. The design blocking objective is assumed to have been met for the capacity ordered if the routine measurements show that the measured blocking does not exceed the thresholds shown in the tables following.

TABLE 1 For transmission paths carrying only first routed traffic directly between an end office and customer's premises without an alternate route, and for paths carrying only overflow traffic, the measured blocking thresholds are as follows:

Measured Blocking Thresholds Number of in the Time Consistent Busy Hour Transmission Paths for the Number of Measurements Per Trunk Group Per Trunk Group 15-20 11-14 7-10 3-6 Measurements Measurements Measurements Measurements

2 .070 .080 .090 .140 3 .050 .060 .070 .090 4 .050 .060 .070 .080 5-6 .040 .050 .060 .070 7 or more .030 .035 .040 .060

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-101 Cancels Original Page 6-101

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.3 Design Blocking Probability (Cont'd)

TABLE 2 For transmission paths carrying first routed traffic between an end office and customer's premises via an access tandem, the measured blocking thresholds are as follows:

Measured Blocking Thresholds Number of in the Time Consistent Busy Hour Transmission Paths for the Number of Measurements Per Trunk Group Per Trunk Group 15-20 11-14 7-10 3-6 Measurements Measurements Measurements Measurements

2 .045 .055 .060 .095 3 .035 .040 .045 .060 4 .035 .040 .045 .055 5-6 .025 .035 .040 .045 7 or more .020 .025 .030 .040

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-102 Cancels 1st Revised Page 6-102

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.4 Determining the Number of Transmission Paths

When ordering Switched Access Services in line quantities for FGA or BSA-A or trunk quantities for FGB, FGD, BSA-B, or BSA-D, (D) customers must specify the number of transmission paths in lines or trunks based upon their expected originating and terminating traffic.

When ordering Switched Access DNAL BSA, the customer will specify the number of transmission paths in quantities of channels.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-103 Cancels Original Page 6-103

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (T)

6.7.5 Determining the Number of End Office Transport Terminations (T)

For analog entry switches, a termination will be provided for each feature group or BSA line or trunk requested. For digital entry switches, an equivalent termination will be provided for each feature group or BSA line or trunk requested.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-104 Cancels Original Page 6-104

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (T)

6.7.6 Interface Groups (T)

Five interface groups are provided for terminating an Entrance (C) Facility at the customer's premises. Interface groups define the │ transmission characteristics associated with the Entrance (C) Facility and all transport facilities with which it is (N) interconnected. (N)

Network Channel (NC) codes, feature group and BSA technical (C) specifications provide the available supervisory signaling │ options. The combination of the interface group and supervisory │ signaling ordered will identify the appropriate premises │ interface code (network channel interface code). Feature group │ and BSA technical specifications are set forth in Technical │ Reference TR-NWT-000334. (C)

Depending upon the interface group chosen by the customer, (N) multiplexing arrangements may also be required. When the │ customer requests to interconnect Switched Transport facilities │ with different capacities or bandwidths, multiplexing │ arrangements are required to provide the interconnection. A │ multiplexing arrangement is also required to interconnect certain facilities with specific switch types. Multiplexing is available as set forth in 6.6.1 (Switched Transport Features).

As a result of the customer's access order and the type of Telephone Company transport facilities serving the customer's premises, the need for level control equipment, signaling conversions or two-wire to four-wire conversions, or the need to terminate digital or high frequency facilities in channel bank equipment, the Telephone Company may be required to place Telephone Company equipment at the customer's premises. For example, if a voice frequency interface is ordered by the customer and the Telephone Company facilities serving the customer's premises are digital, then Telephone Company channel bank equipment must be placed at the customer's premises in order to provide the voice frequency interface ordered by the customer.

Certain material previously appearing on this page now appears on 1st Revised Page 6-105.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-105 Cancels 2nd Revised Page 6-105

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.6 Interface Groups (Cont'd)

All interface groups are provided with transmission specifications and data transmission parameters. Specific technical parameters are set forth in Technical Reference TR-NWT- 000334, including compatibility and interface requirements for MicroLink I Access Capability used in conjunction with FGD or BSA-D.

(A) Interface Group Descriptions

Interface Group 1 (USOC TPP1X) - Provides two-wire voice frequency transmission at the customer's point of termination with the following exceptions. Interface group 1 is not provided with FGD or BSA-D when the first point of(D) switching is an access tandem. Interface group 1 is not provided with FGB, FGD, BSA-B, or BSA-D when the first (D) point of switching provides only four-wire terminations.

Interface Group 2 (USOC TPP2X) - Provides four-wire voice frequency transmission at the customer's point of termination.

Interface Group 3 (USOC TPP3X) - Provides group level analog transmission at the customer's point of termination. This interface group is obsolete and is limited to existing installations at existing locations for existing customers as of January 1, 1994.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-106 Cancels 1st Revised Page 6-106

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (S)

6.7.6 Interface Groups (Cont'd) (S)

(A) Interface Group Descriptions (Cont'd)

Interface Group 4 (USOC TPP4X) - Provides supergroup level analog transmission at the customer's point of termination. This interface group is obsolete and is limited to existing (S) installations at existing locations for existing customers (S) as of January 1, 1994. (C)

(S) │ (S)

Interface Group 6 (USOC TPP6X) - Provides DS1 level (1.544 Mbps) digital transmission at the customer's point of termination.

(S) │ │ │ │ │ (S)

Interface Group 9 (USOC TPP9X) - Provides DS3 level (44.736 Mbps) digital transmission at the customer's point of termination.

(S) │ │ │ │ │ (S)

Material is filed under authority of Special Permission No. 93-1212 of the F.C.C. to become effective January 1, 1994.

Reissued material is filed under authority of Special Permission No. 93-1212 of the F.C.C. and is deferred until January 1, 1994.

(This page filed under Transmittal No. 2321 )

Issued: December 23, 1993 Effective: December 30, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-107 Cancels 2nd Revised Page 6-107

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.6 Interface Groups (Cont'd)

(B) Matrix

The following matrix shows, for each interface group, which premises interfaces are available as a function of the Telephone Company switch supervisory signaling and feature group or basic serving arrangement. Each premises interface is identified by a specific premises interface code. Explanations of the interface codes are set forth in Technical Reference TR-NWT-000334.

(1) Matrix

Basic Serving Arrangement or Interface Telephone Company Premises Feature Group Group Switch Supervisory Signaling Interface Code A B D (D)

1 LO 2LS2 X LO 2LS3 X GO 2GS2 X GO 2GS3 X RV, EA, EB, EC 4EA2-E XXX RV, EA, EB, EC 4EA3-E X X (D) RV, EA, EB, EC 4EA2-M X X RV, EA, EB, EC 4EA3-M X X RV, EA, EB, EC 6EB2-E X X RV, EA, EB, EC 6EB3-E X X RV, EA, EB, EC 6EB2-M X X RV, EA, EB, EC 6EB3-M X X EA, EB, EC 6EC2 X EA, EB, EC 6EC3 X RV 2RV3-O X X RV 2RV3-T X X (D) CCS 2NO2 X

(This page filed under Transmittal No. 3390 )

Issued: May 23, 2014 Effective: June 7, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-108 Cancels 2nd Revised Page 6-108

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.6 Interface Groups (Cont'd)

(B) Matrix (Cont'd)

(1) Matrix (Cont'd)

Basic Serving Arrangement or Interface Telephone Company Premises Feature Group Group Switch Supervisory Signaling Interface Code A B D (D)

2 LO, GO 4SF2 X LO 4LS2 X GO 4GS2 X LO, GO 6EX2-B X RV, EA, EB, EC 4SF2 X X (D) RV, EA, EB, EC 4DX2 X X RV, EA, EB, EC 6EA2-E X X RV, EA, EB, EC 6EA2-M X X RV, EA, EB, EC 8EB2-E X X RV, EA, EB, EC 8EB2-M X X EA, EB, EC 8EC2-M X RV 4RV2-O X X RV 4RV2-T X X (D) CCS 4NO2 X

3 LO, GO 4AH5-B X RV, EA, EB, EC 4AH5-B X X (D) CCS 4AH5-B X

4 LO, GO 4AH6-C X RV, EA, EB, EC 4AH6-C X X (D) CCS 4AH6-C X

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-109 Cancels 3rd Revised Page 6-109

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.6 Interface Groups (Cont'd)

(B) Matrix (Cont'd)

(1) Matrix (Cont'd)

Basic Serving Arrangement or Interface Telephone Company Premises Feature Group Group Switch Supervisory Signaling Interface Code A B D (D)

6 LO, GO 4DS9-15 X LO, GO 4DS9-15L X RV, EA, EB, EC 4DS9-15 X X (D) RV, EA, EB, EC 4DS9-15L X X (D) CCS 4DS9-15 X CCS 4DS9.1S X CCS 4DS9.1SN X CCS 4DS9.1BN X CCS 4DS9.15B X

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-110 Cancels 2nd Revised Page 6-110

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.6 Interface Groups (Cont'd)

(B) Matrix (Cont'd)

(1) Matrix (Cont'd)

Basic Serving Arrangement or Interface Telephone Company Premises Feature Group Group Switch Supervisory Signaling Interface Code A B D (D)

9 LO, GO 4DS6-44 X LO, GO 4DS6-44L X RV, EA, EB, EC 4DS6-44 X X (D) RV, EA, EB, EC 4DS6-44L X X (D) CCS 4DS6-44 X

(This page filed under Transmittal No. 3387 )

Issued: March 12, 2014 Effective: March 27, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-111 Cancels Original Page 6-111

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (T)

6.7.7 DNAL Network Channel Interfaces (T)

(A) There is one type of network channel interface available for terminating the DNAL. The network channel interface identifies the direct current or low frequency control signals at the interface and is described below:

- Channel Interface DC-3

Provides DC Continuity or low frequency control signals at the point of termination.

(B) Available Interface Combinations

The allowable network channel interface combinations for the DNAL BSA are set forth in Technical Reference TR-NPL- 000336.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-112 Cancels 2nd Revised Page 6-112

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.8 Transmission Specifications

(A) Line Side and Trunk Side Switched Access Service

For line side and trunk side Switched Access Service each transmission path is provided with standard transmission specifications. There are three different standard specifications (Types A, B and C). The standard for a particular transmission path is dependent on the feature group or the basic serving arrangement, the interface group and whether the service is directly routed or routed via an access tandem. For example, interface group 1 is provided with Type C and interface groups 2 through 9 are provided with Type A or B transmission specifications. Data transmission parameters are also provided with each Switched Access Service transmission path. Upon notification by the customer that the data parameters set are not being met, the Telephone Company will conduct tests independently or in cooperation with the customer, and take any necessary action to insure that the data parameters are met.

The Telephone Company will maintain existing transmission specifications on functioning service configurations installed prior to the effective date of this tariff except that service configurations having performance specifications exceeding the standards listed in this provision will be maintained at performance levels specified in this tariff and the appropriate Technical Reference Publication.

Transmission specifications are specified in Technical Reference TR-NWT-000334 in terms of (1) acceptance and immediate action limits for the five voice parameters and (2) immediate action limits for the data parameters. In addition, maintenance limits for the voice parameters of FGB, FGD, BSA-B, and BSA-D are specified in Southwestern (D) Bell Telephone Company Technical Reference TP 76500.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-113 Cancels Original Page 6-113

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (T)

6.7.8 Transmission Specifications (Cont'd) (T)

(A) Line Side and Trunk Side Switched Access Service (Cont'd)

When MicroLink I digital data is transmitted over FGD or BSA-D trunks combined with voice traffic, the transmission specifications and maintenance limits will be the same as those specified for the voice parameters of FGD.

The specific applications in terms of the feature groups or basic serving arrangements and the interface groups with which the feature group or basic serving arrangements standard transmission performances are provided are described following.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-114 Cancels Original Page 6-114

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (T)

6.7.8 Transmission Specifications (Cont'd) (T)

(A) Line Side and Trunk Side Switched Access Service (Cont'd)

FGA and BSA-A - FGA and BSA-A are provided with either Type B or Type C transmission specifications. The specifications for the associated parameters are guaranteed to the first point of switching except when optional extensions are provided. Type C transmission specifications are provided with interface group 1, and Type B is provided with interface groups 2 through 9. (T)

- Type DB data transmission parameters are provided with FGA or BSA-A to the first point of switching.

FGB and BSA-B - FGB and BSA-B are provided with either Type B or Type C transmission specifications. The specifications for the associated parameters are guaranteed to the end office when routed directly, or to the first point of switching when routed via an access tandem. Type C transmission specifications are provided with interface group 1, and Type B is provided with interface groups 2 through 9.

- Type DB data transmission parameters are provided with FGB or BSA-B to the first point of switching.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-115 Cancels 1st Revised Page 6-115

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.8 Transmission Specifications (Cont'd)

(A) Line Side and Trunk Side Switched Access Service (Cont'd)

(D)

(D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-116 Cancels Original Page 6-116

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (T)

6.7.8 Transmission Specifications (Cont'd) (T)

(A) Line Side and Trunk Side Switched Access Service (Cont'd)

FGD and BSA-D - When FGD or BSA-D are routed directly to the end office either Type B or Type C transmission specifications are provided. When FGD or BSA-D are routed via an access tandem, only Type A is provided. Type A and B transmission specifications are provided with interface groups 2 through 9. Type C transmission specifications are provided with interface group 1. Type A transmission specifications are provided on the transmission path from the access tandem to the end office.

- Type DA data transmission parameters are provided for the transmission path between the customer's premises and the access tandem and between the access tandem and the end office. Type DB data transmission parameters are provided for the transmission path between the customer's premises and the end office when directly routed to the end office.

(B) DNAL BSA Switched Access Service

For the DNAL BSA, transmission specifications are set forth in Technical Reference TR-NPL-000336.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-117 Cancels Original Page 6-117

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.9 Supervisory Signaling

The customer's facilities shall provide the necessary on-hook/ off-hook and answer and disconnect supervision.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-118 Cancels 1st Revised Page 6-118

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (T)

6.7.10 Testing (T) │ Two broad categories of testing are available for Switched │ Access services. These are: Acceptance Tests and In-Service │ Tests. │ │ (A) Acceptance Tests │ │ Acceptance tests are tests that are performed during the │ installation of a Switched Access service. These tests are (T) cooperative tests between the Telephone Company and the customer and they are performed at the customer's request (T) at the time of installation. Acceptance Tests are │ available for feature group and BSA Switched Access (T) Services as well as for the facilities available with (C) Switched Transport Service. There is no charge for (C) Acceptance Testing.

For line side and trunk side feature groups and BSAs and (T) for Voice Grade Switched Transport facilities, the (C) Telephone Company will test the following parameters:

- loss - C-notched noise - 3-tone slope - d.c. continuity - operational signaling

For DNAL BSA, acceptance tests will include tests for the parameters applicable to the service as specified by the customer in the order for service.

For DS1 and DS3 Switched Transport facilities, acceptance tests will include tests for the parameters applicable to the service as specified in Technical Reference TP 76625.

Certain material and revised material previously appearing on this page now appears on Original Page 6-118.1 and 1st Revised Page 6-119.

(x) Filed under authority of Special Permission No. 93-705 of the F.C.C.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-118.1 Cancels Original Page 6-118.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.10 Testing (Cont'd)

(A) Acceptance Tests (Cont'd)

When Switched Transport is provided with interface groups 2 through 9 and the transport termination is two-wire (i.e., there is a four-wire to two-wire conversion in the transport), balance parameters (equal level echo path loss) may also be tested.

In addition to the acceptance tests described above, Additional Cooperative Acceptance Testing for which charges do apply is available as described in 13.3.6 (Testing Services for Switched Access Service) for line or trunk side feature groups and BSAs. Additional Cooperative Acceptance Testing is also available for DNAL BSA and Switched Transport facilities as set forth in 13.3.7 (Testing Services for Special Access Service, MegaLink Custom Service and Self-healing Transport Network (STN)).

(B) In-Service Testing

In-Service tests are tests which are performed after acceptance of the Switched Access service by the customer. Such tests include Cooperative Scheduled Testing, Manual Scheduled Testing, and Nonscheduled Testing. These In- (D) Service Tests are available for Switched Access line side and trunk side feature groups and BSAs as set forth in 13.3.6 (Testing Services for Switched Access Service). For DNAL BSA and Switched Transport facilities, these In- Service tests are available as set forth in 13.3.7 (Testing Services for Special Access Service, MegaLink Custom Service and Self-healing Transport Network (STN).

(This page filed under Transmittal No. 2842 )

Issued: August 17, 2000 Effective: September 1, 2000 (T)

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-119 Cancels 1st Revised Page 6-119

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.10 Testing (Cont'd)

(B) In-Service Testing (Cont'd)

When SS7 Signaling is ordered, network compatibility and other operational tests will be performed cooperatively by the Telephone Company and the customer as specified in TP-76638 Signaling System 7 Network Interface Specifications, Supplement No. 2, TR-TSV-000905.

The following In-Service testing capabilities are available on an ongoing basis for the services provided under this tariff as described below:

FGA and BSA-A - In the terminating direction where equipment is available, FGA and BSA-A are provided with:

- seven digit access to balance (100 type) test line, and - milliwatt (102 type) test line.

FGB, FGD, - In the terminating direction where (D) BSA-B, equipment is available, FGB, FGD, (D) and BSA-D BSA-B, and BSA-D are provided with: (D)

- seven digit access to balance (100 type) test line, - milliwatt (102 type) test line, - nonsynchronous or synchronous test line, - automatic transmission measuring (105 type) test line, - data transmission (107 type) test line, - loop around test line, - short circuit test line, and - open circuit test line.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-120 Cancels 3rd Revised Page 6-120

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.11 Network Management

The Telephone Company will administer its network to insure the provision of acceptable service levels to all telecommunications users of the Telephone Company's network services. Generally, service levels are considered acceptable only when both end users and customers are able to establish connections with little or no delay encountered within the Telephone Company network.

(Dx)

(Dx)

The Telephone Company maintains the right to apply protective controls (i.e., those actions, such as call gapping) which selectively cancel the completion of any traffic carried over the Telephone Company's network, including that associated with a customer's Switched Access Service. Generally, such protective measures would only be taken as a result of occurrences such as failure or overload of Telephone Company or customer facilities, natural disasters, mass calling or national security demands. In the event that the protective controls applied by the Telephone Company result in the complete loss of service to the customer, the customer may be granted a credit allowance in conjunction with the regulations specified in 2.5.6 (Credit Allowance for Service Interruptions) and 2.5.7 (Service Assurance Warranty Schedule).

(x) Issued under authority of Special Permission No. 13-019 of the FCC in order to withdraw material filed under Transmittal No. 3376 without its becoming effective and to restore currently effective material.

(This page filed under Transmittal No. 3378 )

Issued: August 8, 2013 Effective: August 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-121 Cancels 2nd Revised Page 6-121

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.12 Media Stimulated Mass Calling Events

When Switched Access Service is utilized to provide services for which a substantial call volume is anticipated during a short period of time (e.g., 800, 900, ACIS, opinion polls or (C) POTS calls placed in response to television and radio advertising), the customer shall provide notification of such an event to the Telephone Company at least 24 hours in advance of the peak period. Such notification shall include the nature, time, duration and the frequency of the event, as well as estimated call volume and the telephone number(s) to be utilized.

The Telephone Company will utilize such information to administer its network in a manner that minimizes the impact of traffic surges due to media stimulated mass calling events. Failure to provide such notification may cause excessive network congestion which could result in a complete loss of service to the customer. If the Telephone Company has not received required notification at least 24 hours in advance of the event, and a service interruption occurs, a credit allowance as specified in 2.5.6(C) (When a Credit Allowance Does Not Apply) will not apply.

Reissued material is scheduled to become effective December 25, 1994.

(This page filed under Transmittal No. 2405 )

Issued: December 2, 1994 Effective: January 16, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-122 Cancels Original Page 6-122

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (T)

6.7.13 Design Layout Report (T)

At the request of the customer, the Telephone Company will provide to the customer a Design Layout Report showing the makeup of the Telephone Company facilities and services provided from the customer's premises to the first point of switching. The Design Layout Report will be provided to the customer at no charge and will be reissued or updated whenever these facilities are materially changed.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-123 Cancels Original Page 6-123

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.14 Provision of Service Performance Data

Subject to availability, end-to-end service performance data available to the Telephone Company through its own service evaluation routines may also be made available to the customer based on previously arranged intervals and format for line side and trunk side Switched Access Service. This data provides information on overall end-to-end call completion and non- completion performance, e.g., customer equipment blockage, failure results and transmission performance. This data does not include service performance data which is provided under other tariff sections, e.g., testing service results. If data is to be provided in other than paper format, the charges for such exchange will be determined on an Individual Case Basis.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-124 Cancels 2nd Revised Page 6-124

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.15 Trunk Group Measurement Reports

The Telephone Company will make available to customers Trunk Group Measurement Reports showing trunk group data in the form of offered load. Offered load represents measured CCS (100 call seconds) that has been adjusted to consider the effects of overflow and retrials. These Trunk Group Measurement Reports, provided in a standard report format, provide outputs from the Trunk Serving System (TSS) that the Telephone Company uses in its own trunk engineering process. The Trunk Group Measurement Reports will be made available to the customer on a semiannual basis at no additional charge.

6.7.16 Percent Direct Routed Factor (T)

A percent direct routed (PDR) factor is a Telephone Company (C) developed factor for assigning originating FGB and BSA-B │ traffic to a tandem route or to a direct route. PDR factors │ will be used by the Telephone Company for all originating FGB │ and BSA-B traffic dated prior to July 1, 1994. For FGB and │ BSA-B traffic dated July 1, 1994 and beyond, PDR factors will │ be used for traffic originating from Telephone Company end │ offices that lack the measuring capabilities needed to │ distinguish tandem-routed traffic from direct-routed traffic. (C)

The PDR factor is expressed as a whole number from 0 (zero) to (T) 100 (one hundred) with 100 representing all traffic as direct │ routed. End offices for which a PDR factor is developed are │ listed in the NECA Tariff F.C.C. No. 4. (T)(x)

Monthly PDR factors will be developed and applied on a per (C) customer per end office basis as set forth following: │ │ (a) Determine the total number of measured originating FGB or BSA-B access minutes of use during the current billing period.

(x) Filed under authority of Special Permission No. 91-258 of the F.C.C.

Certain revised material previously appearing on this page now appears on 2nd Revised Page 6-124.1.

(This page filed under Transmittal No. 2357 )

Issued: May 17, 1994 Effective: July 1, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-124.1 Cancels 1st Revised Page 6-124.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd)

6.7.16 Percent Direct Routed Factor (Cont'd) (T)

(b) Determine the average number of originating direct-routed (C) FGB or BSA-B trunks provided during the current billing │ period. │ │ (c) For each one-way originating direct-routed FGB and BSA-B │ trunk identified in (b) preceding, assume a total of 9,000 │ access minutes of use per month. For each two-way direct- │ routed FGB and BSA-B trunk identified in (b) preceding, │ assume a total of 4,500 access minutes of use per month. │ │ (d) Calculate the PDR factor as follows: │ │ If the number of assumed minutes of use developed in (c) │ preceding is greater than the total number of measured │ originating access minutes developed in (a) preceding, the │ PDR factor will be 100%. │ │ If the number of assumed minutes of use developed in (c) │ preceding is not greater than the total number of measured │ originating access minutes developed in (a) preceding, │ divide the number of assumed minutes by the total number │ of measured minutes for FGB or BSA-B and multiply by 100 │ to obtain the PDR factor. Use conventional rounding to │ obtain a whole number. │ │ (e) Multiply the total number of measured minutes determined │ in (a) preceding by the percentage calculated in (d) │ preceding to determine the number of derived FGB or BSA-B │ originating minutes to be billed as direct routed. For │ the number of minutes to be billed as tandem routed, │ subtract the derived direct-routed minutes from the total │ number of minutes that were calculated in (a) preceding. (C)

FGB and BSA-B traffic originating from Mobile Access Tandem (T)(M) Connections and TRIS must be tandem routed. Such traffic, as well as any associated trunk groups are not included in the development of a PDR factor.

Certain revised material appearing on this page formerly appeared on 2nd Revised Page 6-124.

(This page filed under Transmittal No. 2357 )

Issued: May 17, 1994 Effective: July 1, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-124.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (N) 6.7.17 Percent Tandem Signaling Factor │ │ A percent tandem signaling (PTS) factor is a customer-provided │ factor utilized for billing of originating traffic associated │ with the tandem signaling feature specified in 6.6.1 (Switched │ Transport Features). For originating traffic where the │ Telephone Company can determine from the call record that the │ call is routed to a tandem signaling customer tandem, the │ Telephone Company will bill according to such data. For │ originating traffic where the Telephone Company cannot │ determine from the call record that the call is routed to │ either a tandem signaling customer tandem or a Telephone │ Company tandem, the Telephone Company will utilize an │ originating PTS factor to determine whether such usage will be │ billed as usage routed to a Telephone Company access tandem or │ usage routed to a tandem signaling customer tandem. │ │ Upon ordering the tandem signaling feature, the tandem │ signaling customer must provide the Telephone Company with an │ originating PTS factor. The PTS factor is expressed as a whole │ number from 0 (zero) to 100 (one hundred) with 100 representing │ all traffic as traffic routed to a tandem signaling customer │ tandem. The PTS report shall reflect a percentage of │ originating access minutes for each end office or LATA from │ which the tandem signaling customer may originate traffic. If │ a LATA-level PTS factor is provided by the tandem signaling │ customer, the specified percentage will be applied to all end │ offices to which the tandem signaling customer may originate │ traffic within the LATA or to those end offices for which an │ end office-level PTS is not provided. If a tandem signaling │ customer does not provide the Telephone Company with an │ originating PTS report, the Telephone Company will designate a │ PTS factor of 0%. │ │ The PTS factor must be furnished via a letter. PTS factors │ provided via letter will be kept on file and the tandem │ signaling customer can designate when such PTS factors are to │ apply to new or existing services. The tandem signaling │ customer may provide an updated PTS report. Upon receipt by │ the Telephone Company, the revised report will serve as the │ basis for future billing and will be effective on the next bill │ date for that service. No prorating or backbilling will be done based on the report. The revised report will be used by the Telephone Company to apportion usage until a subsequent revised report is received.

Revised material is filed under authority of Special Permission No. 95-81 of the F.C.C.

(This page filed under Transmittal No. 2420 )

Issued: January 20, 1995 Effective: January 24, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-124.3

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (N) 6.7.18 Tandem Signaling Terminating Billing Data │ │ (A) Report Requirements │ │ Where the Telephone Company has been requested to bill │ more than one customer per terminating trunk group, the │ tandem signaling customer is required to provide the │ Telephone Company with terminating billing data for all │ usage representing terminating access minutes at Telephone │ Company end offices. This terminating billing data must │ be in the form of individual call records in the standard │ Expanded Message Interface (EMI) format. A description of │ the required call record and the fields contained are set │ forth in Bellcore Publication SR-STS-000320, Message │ Interface. It is the responsibility of the tandem │ signaling customer to provide to the Telephone Company via │ electronic transmission [for T-TRAN or Network Data Mover │ (NDM)] or U.S. Mail or other mail service (for 9 or 18 │ (x) Track Tape) on a current basis [to be received within 4 │ │ (four) business days of the completion of the individual │ │ call record. │ │ │ │ The tandem signaling customer will also be required to │ │ provide a monthly summary of the previous month's │ │ terminating billing data, to be received by the Telephone │ │ Company by the 15th calendar day of the month. For each │ │ tape submitted during the previous month, the summary │ │ report will list invoice number and the date the tape was │ │ transmitted to the Telephone Company. The number of │ │ minutes and number of messages must be listed for each CIC │ (x) and according to the calendar date of the usage.] │ │ The Telephone Company will work cooperatively with the │ tandem signaling provider when the Telephone Company has │ not received the terminating billing data or the │ terminating billing data provided to the Telephone Company │ is unusable for billing. │ │ If the Telephone Company has not been able to resolve the │ discrepancy with the tandem signaling customer within 30 (thirty) calendar days, the Telephone Company will use its terminating call record to bill the terminating usage to the tandem signaling customer.

(x) This material is filed on not less than 45 days' notice to become effective March 6, 1995.

Revised material is filed under authority of Special Permission No. 95-81 of the F.C.C.

(This page filed under Transmittal No. 2420 )

Issued: January 20, 1995 Effective: January 24, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-124.4

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (N) 6.7.18 Tandem Signaling Terminating Billing Data (Cont'd) │ │ (B) Report Verification │ │ When a tandem signaling customer provides terminating │ billing data as set forth preceding, the Telephone Company │ may, on written request by Certified U.S. mail (return │ receipt requested), require the tandem signaling customer │ to provide call detail records which will be audited to │ substantiate the terminating billing data provided to the │ Telephone Company. The Telephone Company may request this │ detailed information twice annually. If the audit results │ represent what the Telephone Company considers to be a │ substantial deviation from the Telephone Company's │ termination call detail for the period upon which the │ audit was based, and that deviation is not due to seasonal │ changes or other identifiable reasons, the call detail │ records may be requested more than once annually. The │ Telephone Company will request that the call detail │ records be made available to an independent auditor or the │ Telephone Company within thirty (30) days of the request │ at an agreed upon location during normal business hours. │ │ If the tandem signaling customer fails to comply with this │ request, the Telephone Company may refuse additional │ applications for service and/or refuse to complete any │ pending orders for service for a period of 30 days as set │ forth in 2.1.6(A)(1) preceding. If, at the conclusion of │ 30 days, the tandem signaling customer still does not │ comply with this request, the Telephone Company may │ discontinue the provision of the services to the tandem │ signaling customer as specified in 2.1.6(A)(2) preceding. │ │ (1) Audit Verification Process │

The audit verification process and responsible party(ies) for payment of audit expenses will be determined as set forth in (a) or (b) following:

This material is filed on not less than 45 days' notice to become effective March 6, 1995.

(This page filed under Transmittal No. 2420 )

Issued: January 20, 1995 Effective: January 24, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-124.5

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (N) 6.7.18 Tandem Signaling Terminating Billing Data (Cont'd) │ │ (B) Report Verification (Cont'd) │ │ (1) Audit Verification Process (Cont'd) │ │ (a) If the Telephone Company and the tandem │ signaling customer mutually agree upon an │ independent auditor and party(ies) responsible │ for payment of the audit expenses, both parties │ will be bound by such agreement; or │ │ (b) The tandem signaling customer may select the │ independent auditor and pay all audit expenses. │ │ If the audit verification process is not conducted │ as set forth in (a) or (b) preceding, the Telephone │ Company may select the independent auditor and pay │ all expenses or, in lieu of using an independent │ auditor, may require that the tandem signaling │ customer's call detail records used to substantiate │ the terminating billing data be supplied to the │ Telephone Company at a specified location within │ thirty (30) days of the request for verification │ purposes. │ │ (2) Maintenance of Customer Records │ │ The tandem signaling customer shall retain and │ maintain call detail records, for a minimum 24 month │ period, that substantiate the terminating bill data │ provided to the Telephone Company as set forth │ preceding. Such call detail records (i.e., │ workpapers and/or backup documentation, including │ paper, magnetic tapes or any other form of records │ for billed tandem signaling customer traffic) shall │ consist of call information, including call │ terminating address (i.e., called number), the call │ duration, the trunk groups or access lines over │ which the call is routed and the point at which the │ call enters the tandem signaling customer's network. │ │ If the Telephone Company determines that the tandem │ signaling customer's records, worksheets and backup │ documentation are insufficient or, if the tandem │ signaling customer does not provide the call detail │ records in accordance with the provisions set forth in this tariff, the Telephone Company shall request the call detail records on a prospective basis, not to exceed a three (3) month period.

This material is filed on not less than 45 days' notice to become effective March 6, 1995.

(This page filed under Transmittal No. 2420 )

Issued: January 20, 1995 Effective: January 24, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-124.6

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (N) 6.7.18 Tandem Signaling Terminating Billing Data (Cont'd) │ │ (C) Audit Results │ │ Audit results will be furnished to the customer and the │ Telephone Company via Certified U.S. Mail (return receipt │ requested). If the customer provided terminating billing │ data substantially deviates from the audit results (either │ overreported or underreported), and that deviation is not │ due to seasonal changes or other identifiable reasons, the │ Telephone Company will adjust the amount of access minutes │ billed based upon the audit results. │ │ (D) Contested Audits │ │ When a terminating billing data audit is conducted by the │ Telephone Company or an independent auditor selected by │ the Telephone Company, the audit results will be furnished │ to the tandem signaling customer by Certified U.S. Mail │ (return receipt requested). The tandem signaling customer │ may contest the audit results by providing written │ notification, by Certified U.S. Mail (return receipt │ requested), to the Telephone Company within fifteen (15) │ calendar days from the date the audit report is furnished │ to the tandem signaling customer by Certified U.S. Mail │ (return receipt requested). When a terminating billing │ data audit is conducted by an independent auditor selected │ by the tandem signaling customer, the audit results will │ be furnished to the Telephone Company by Certified U.S. │ Mail (return receipt requested). The Telephone Company │ may contest the audit results by providing written │ notification, by Certified U.S. Mail (return receipt │ requested), to the tandem signaling customer within fifteen (15) calendar days from the date the audit report is furnished to the Telephone Company by Certified U.S. Mail (return receipt requested).

This material is filed on not less than 45 days' notice to become effective March 6, 1995.

(This page filed under Transmittal No. 2420 )

Issued: January 20, 1995 Effective: January 24, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-124.7

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (N) 6.7.18 Tandem Signaling Terminating Billing Data (Cont'd) │ │ (D) Contested Audits (Cont'd) │ │ Contested audits will be resolved by a neutral arbitrator │ mutually agreed upon by the Telephone Company and the │ tandem signaling customer. The arbitration hearing will │ be conducted in a state or location within the Telephone │ Company operating territory where the tandem signaling │ customer maintains a principle or significant presence or │ a state and location within the Telephone Company │ operating territory that is mutually agreed upon by both │ parties. The arbitration proceeding shall be governed by │ the law (both statutory and case) of the state in which │ the arbitration hearing is held, including, but not │ limited to, the Uniform Arbitration Act, as adopted in │ that state. The arbitrator shall determine the tandem │ signaling customer's appropriate terminating billing data. │ │ Prior to the arbitration hearing, each party shall notify │ the arbitrator of the terminating access minutes which │ that party believes to be correct. The arbitrator, in │ deciding, may adopt the terminating access minutes of │ either party or may adopt terminating access minutes │ different from those proposed by the parties. If the │ arbitrator adopts terminating access minutes proposed by │ one of the parties, the other party (whose terminating │ access minutes was not adopted) shall pay all costs of the │ arbitration. If the arbitrator adopts terminating access │ minutes higher than either of the terminating access │ minutes proposed by the parties, then the party proposing │ the lower terminating access minutes shall pay all costs │ of the arbitration. If the arbitrator adopts terminating │ access minutes lower than either of the terminating access │ minutes proposed by the parties, then the party proposing │ the higher terminating access minutes shall pay all costs │ of the arbitration. If the arbitrator adopts terminating access minutes which falls between the two amounts adopted by the parties, then the parties shall each pay one-half of the arbitration costs.

This material is filed on not less than 45 days' notice to become effective March 6, 1995.

(This page filed under Transmittal No. 2420 )

Issued: January 20, 1995 Effective: January 24, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-124.8

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.7 Service Provisioning (Cont'd) (N) 6.7.18 Tandem Signaling Terminating Billing Data (Cont'd) │ │ (D) Contested Audits (Cont'd) │ │ Absent written notification, within the timeframe noted │ above, the tandem signaling customer must comply with the │ provisions set forth in (B) preceding. If the tandem │ signaling customer fails to comply with these provisions, │ the Telephone Company may refuse additional applications │ for service and/or refuse to complete any and all pending │ orders for service for a period of 30 days as set forth in │ 2.1.6(A)(1) preceding. If, at the conclusion of 30 days, │ the tandem signaling customer still does not comply with │ the provisions set forth in 2.4.1(E), the Telephone Company may discontinue the provision of the services to the tandem signaling customer as specified in 2.1.6(A)(2) preceding.

This material is filed on not less than 45 days' notice to become effective March 6, 1995.

(This page filed under Transmittal No. 2420 )

Issued: January 20, 1995 Effective: January 24, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-125 Cancels 6th Revised Page 6-125

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations

This section contains the specific regulations governing the rates and charges that apply for Switched Access Service.

There are three types of rates and charges that apply to the various rate elements for Switched Access Service. These are nonrecurring charges, monthly recurring rates (including fixed and per mile rates) and usage rates. Certain rates and charges for Switched Transport apply on a zoned or a nonzoned basis as set forth in 6.8.16 (Zone Pricing).

Specific rates and charges are set forth in 6.9 (Rates and Charges). Jurisdictional Report Requirements are set forth in 2.4 (Jurisdictional Reports). Ordering, rating and billing procedures as specified in 2.6 (Jointly Provided Access Service) will apply for access services where more than one exchange telephone company is involved. (D) │ │ │ (D)

Rates and charges for services other than Switched Access Service, e.g., a customer's interLATA toll message service, may also be applicable when Switched Access Service is used in conjunction with these other services, as described in 6.8.14 (Non-Access Charges).

Material is filed under authority of Special Permission No. 96-723 of the F.C.C. and withdraws material issued under Transmittal No. 2557 to become effective October 5, 1996.

(This page filed under Transmittal No. 2577 )

Issued: September 27, 1996 Effective: October 5, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-126 Cancels 3rd Revised Page 6-126

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.1 Rate Elements

The following provides a list of the various rate elements and how the rate elements are defined.

- Carrier Common Line (described in Section 3) (T) - End User (described in Section 4) (N) - Entrance Facility (as described in Section 6.8.1(A)) (T) - Direct-Trunked Transport (as described in Section (T) 6.8.1(B)) (D) - Tandem-Switched Transport (as described in Section 6.8.1 (T) (C)) (D) - Local Switching (described in Section 6.8.1(D)) (T) (D) - Information Surcharge (described in Section 6.8.1(F)) (T) - DNAL Termination (described in Section 6.8.1(G)) (T) - DNAL Mileage (described in Section 6.8.1(H)) (T)

(A) Entrance Facility

The Entrance Facility rate element provides for an (T) Entrance Facility as described in Section 6.5. The Entrance Facility rate element includes the transmission medium of the facility (e.g., wire or fiber) as well as certain circuit equipment that is used at the ends of the facility and employed to provision the channels on the transmission medium.

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-126.1 Cancels 2nd Revised Page 6-126.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.1 Rate Elements (Cont'd)

(A) Entrance Facility (Cont'd) (T)

The Entrance Facility rate element also includes an Interface Group which defines the technical characteristics and types of signaling capability associated with the connection (i.e., voice grade, DS1 or DS3) that comprises the Entrance Facility.

(B) Direct Trunked-Transport (T)

The Direct-Trunked Transport rate element provides for a Direct-Trunked Transport facility as set forth in 6.5 (Switched Transport Services). The Direct-Trunked Transport rate element includes the transmission facilities between the Telephone Company's serving wire center and an end office when such facilities are not switched through an access tandem. This includes the transmission medium itself (e.g., wire or fiber) as well as certain circuit equipment that is used at the ends of the interoffice links and employed to provision the channels on the transmission medium and circuit equipment used within the network to manage the circuits at intermediate locations.

The Direct-Trunked Transport rate element also provides for the transmission facilities between the Telephone Company's serving wire center and a hub office other than a serving wire center.

The Direct-Trunked Transport rate element can also be used to provide the transmission facilities between a serving wire center and an access tandem for tandem routed services.

The Direct-Trunked Transport rate element also provides for the DS1-level connection for the transmission of Switched Access traffic from the Telephone Company's distribution (DSX) bay to a Telephone Company analog or digital switch that is located within the same wire center as an interconnector's Expanded Interconnection arrangement as set forth in Section 25 (Expanded Interconnection).

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2788 )

Issued: October 26, 1999 Effective: November 2, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-126.2 Cancels 2nd Revised Page 6-126.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.1 Rate Elements (Cont'd)

(C) Tandem-Switched Transport

The Tandem-Switched Transport rate element provides for a Tandem-Switched Transport facility as set forth in 6.5 (Switched Transport). The Tandem-Switched Transport rate element includes the transmission facilities between the Access Tandem and an end office. Tandem-Switched Transport is composed of five subelements: (T)

- Tandem-Switched Transmission:

Tandem-Switched Transmission provides for the transmission facilities from the access tandem to the end office where calls are switched to originate or terminate. Tandem Switching Rates are set forth in 6.8.3 (Monthly Recurring and Usage Rates).

Tandem-Switched Transmission includes the transmission medium itself (e.g., wire or fiber) as well as certain circuit equipment that is used at the ends of the interoffice links and employed to derive the channels on the transmission medium and circuit equipment used within the network to manage the circuits at intermediate locations.

(This page filed under Transmittal No. 3114 )

Issued: January 19, 2006 Effective: February 3, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-126.3 Cancels 2nd Revised Page 6-126.3

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.1 Rate Elements (Cont'd)

(C) Tandem-Switched Transport (Cont'd)

The Tandem-Switched Transmission subelement also provides for certain interoffice links that are provided for the common use of all customers but which are not switched through an access tandem (such as the interoffice links used to terminate FGA and BSA-A from the dial tone office to the terminating end office). When Tandem-Switched Transmission is applied to such transport, the Telephone Company will identify such transport as Common Transport to clarify that the interoffice links were not switched through an access tandem. When both Tandem-Switched Transmission and Common Transport are applicable, mileage is measured separately.

- Host Remote (N) The Host Remote Transmission subelement provides for certain interoffice links that are provided for the common use of all customers but which are not switched through an access tandem. When both Tandem-Switched Transmission and Host Remote Transmission are applicable, mileage is measured separately.

- Tandem Switching: Tandem Switching provides for use of the Telephone Company's access tandem.

- Tandem End Office Multiplexing: Tandem Multiplexing provides for the multiplexing equipment functionality on the end office side of the tandem switch and for terminating FGA BSA-A minutes of use between the dial tone office and the end office.

- Dedicated Tandem Trunk Port: The Dedicated Tandem Trunk Port provides for the port associated with each dedicated trunk terminating on the serving wire center side of the access tandem.

(This page filed under Transmittal No. 3114 )

Issued: January 19, 2006 Effective: February 3, 2006

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-127 Cancels 3rd Revised Page 6-127

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.1 Rate Elements (Cont'd)

(D) Local Switching (T)

The Local Switching rate elements as described in 1 through 3 following, provide for the local end office switching and end user termination functions necessary to complete the transmission of Switched Access communications to and from the end users served by the local end office. When local switching functions are not used in the provision of a Switched Access service, such as calls originating from or terminating to a Mobile Access Tandem Connection, local switching rates will not apply.

(1) The Local Switching rate element provides for the following functions.

Common Switching - Local end office switching associated with the various feature group and basic serving arrangements switching arrangements.

Transport Termination - Line or trunk side arrangements which terminate the Local Transport facilities.

Line Termination - Terminations for the end user lines terminating in the local end office. There are two types of line terminations: Common Line terminations and WATS Access Line Service terminations.

Intercept - Termination of certain calls at a Telephone Company intercept recording. The recording tells a caller why a call, as dialed, could not be completed, and if possible, provides the new number. Where facilities do not permit the use of a recording, the Telephone Company may choose to provide intercept via an operator.

(This page filed under Transmittal No. 2788 )

Issued: October 26, 1999 Effective: November 2, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-128 Cancels 3rd Revised Page 6-128

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.1 Rate Elements (Cont'd)

(D) Local Switching (Cont'd)

(1) (Cont'd)

During the transition period in which Switched Access Services are provided as either feature groups or as basic serving arrangements, Local Switching is available on a bundled or unbundled basis. Bundled Local Switching rates will apply to Switched Access Services provided as feature groups. Unbundled Local Switching rates will apply to Switched Access Services provided as basic serving arrangements. When the feature groups are abolished at the end of this transitional period, Local Switching will only be provided on an unbundled basis. Bundled and Unbundled Local Switching rates are divided into two distinct categories, i.e., LS1 and LS2.

(2) The Dedicated End Office Port provides for each dedicated line or trunk terminating in the end office port.

(3) The Shared End Office Trunk Port rate element provides for the use of the shared end office trunk ports for termination of common transport trunks for tandem routed traffic.

(E) Reserved for Future Use (T) (D)

(D)

(F) Information Surcharge

The Information Surcharge rate element provides for white page publication.

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-129 Cancels 2nd Revised Page 6-129

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.1 Rate Elements (Cont'd)

(G) DNAL Termination (T)

The DNAL Termination rate element provides for the communications path between a customer's designated premises and the Telephone Company switch where the DNAL terminates. Included as part of the DNAL Termination is a standard channel interface arrangement which defines the technical characteristics associated with the type of facilities to which the Switched Access Service is to be connected at the point of termination.

(H) DNAL Mileage (T)

The DNAL Mileage rate element provides for the transmission facilities between the serving wire center of the customer's designated premises and the Telephone Company switch where the DNAL terminates.

(This page filed under Transmittal No. 2788 )

Issued: October 26, 1999 Effective: November 2, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-130 Cancels 3rd Revised Page 6-130

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges (D)

Nonrecurring charges are one-time charges that apply for a specific work activity (i.e., installation or change to an existing service.) Nonrecurring charges are applicable for installation of services, installation of features, installation of BSEs and for certain service rearrangements. In addition, an Access Order Charge may be applicable as specified in 5.3.1 (Access Order Charges).

(A) Nonrecurring Charges for Installation of Service

(1) Installation Charges

These nonrecurring charges apply to the installation of each feature group service (FGA, FGB, and FGD), (D) each basic serving arrangement (BSA-A, BSA-B, and BSA-(D) D), each DNAL, and each Switched Transport facility (Entrance Facility, Direct-Trunked Transport facility and Tandem-Switched Transport facility) as follows:

- For FGA and BSA-A, the per line installation charge is applicable on a first and additional basis.

- For trunk side feature groups and BSA services (FGB, FGD, BSA-B, and BSA-D), the per trunk installation (D) charge is applicable on a first and additional basis.

- For DNAL BSA, the per point of termination installation charge is applicable on a per channel, first and additional basis.

- For Switched Transport services (Entrance Facility, Direct-Trunked Transport and Tandem-Switched Transport), installation charges are applied on a first and additional basis by connection type.

(D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-130.1 Cancels 1st Revised Page 6-130.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd) (C) 6.8.2 Nonrecurring Charges* (Cont'd)

(A) Nonrecurring Charges for Installation of Service (Cont'd)

(1) Installation Charges (Cont'd)

(a) Connection Type

For Voice Grade connections, the per channel installation charge is applicable.

For DS1 connections, the per DS1 installation charge is applicable.

For DS3 connections, the per DS3 installation charge is applicable.

For each Entrance Facility, Direct-Trunked Transport facility or Tandem-Switched Transport facility installed, a nonrecurring charge applies to each connection type requested, except as set forth following:

- When the Entrance Facility and its interconnecting interoffice transport facility are installed at the same time with the same connection type (i.e., a multiplexer is not required for the interconnection) the nonrecurring charge to install the Entrance Facility will include the installation for the corresponding connection type of the other facility.

- When Direct-Trunked Transport or Tandem- Switched Transport is installed in a multiplexed arrangement, nonrecurring charges will not apply for the installation of connection types having zero mileage.

(C) * For Services ordered under MVP, refer to Section 38.3(E)(5).

(This page filed under Transmittal No. 2852 )

Issued: December 15, 2000 Effective: December 30, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-130.2 Cancels 2nd Revised Page 6-130.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges (Cont'd) (D)

(A) Nonrecurring Charges for Installation of Service (Cont'd)

(1) Installation Charges (Cont'd)

(a) Connection Type (Cont'd)

When Tandem Switched Transport facilities are installed, the nonrecurring charges will be those for Direct-Trunked Transport. The Tandem Switching Rates are set forth in 6.8.3 (Monthly Recurring and Usage Rates).

(b) First and Additional

An installation charge is applicable on a first and additional line, trunk, DNAL termination, channel or connection type basis. If a customer orders multiple lines, trunks, DNAL terminations, channels or connection types on the same access order, the first line, trunk, DNAL termination, channel or connection type is assessed the "first" installation charge and each additional line, trunk, DNAL termination, channel or connection type is assessed the "additional" installation charge.

If a FGD or BSA-D customer is adding capacity to (D) the existing service and the order does not require the installation of an additional trunk(s), an installation charge does not apply.

(D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-131 Cancels 5th Revised Page 6-131

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges (Cont'd) (D)

(A) Nonrecurring Charges for Installation of Service (Cont'd)

(2) 900 Access Service NXX Activation Charge

This nonrecurring charge applies for the activation of each 900 Access Service NXX code subsequent to the customer's initial request for activation of 900 NXX code(s) within the LATA. The "first" charge applies to the activation of the first NXX code listed on the request per each end office within the LATA. The (C) "additional" charge applies to the activation of each additional NXX code(s) listed on the request per each end office within the LATA. The entity that has been (C) assigned the 900 NXX code(s) by Bellcore will be responsible for the 900 Access Service NXX Activation Charge(s) associated with that code(s).

When the customer orders 0+900 Access Service, the 900 Access Service NXX Activation Charge will always apply per NXX code within the LATA in addition to the 0+900 Access Service Installation Nonrecurring Charge as set forth in Section 6.9. (T)

(D)

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-132 Cancels 2nd Revised Page 6-132

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges* (Cont'd) (C)

(A) Nonrecurring Charges for Installation of Service (Cont'd)

(3) 0+900 Access Service Installation Nonrecurring Charge

The 0+900 Access Service Installation Nonrecurring Charge applies to customers who request 0+900 Access Service. The nonrecurring charge will apply on a per end office basis for those end offices within the LATA that require modification to allow 0+900 dialing. The nonrecurring charge will apply whether the request for 0+900 Access Service is concurrent with or subsequent to the initial activations of the NXX code(s).

In addition to the 0+900 Access Service Installation Nonrecurring Charge, the 900 Access Service NXX Activation Charge will apply as set forth in (2) preceding. If the customer requests to receive 0+900 Access Service at the time of subsequent activation of 900 NXX code(s), the 900 Access Service NXX Activation Charge will apply to all new and existing NXX's to be activated.

(B) Nonrecurring Charges for Installation of Features

(1) A nonrecurring charge applies, per Carrier Identification Code (CIC), when the following features are installed, whether concurrent with or subsequent to the installation of a trunk or trunk group.

* For Services ordered under MVP, refer to Section 38.3(E)(5). (C)

(This page filed under Transmittal No. 2852 )

Issued: December 15, 2000 Effective: December 30, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-133 Cancels 5th Revised Page 6-133

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges* (Cont'd) (C)

(B) Nonrecurring Charges for Installation of Features (Cont'd)

(1) (Cont'd)

(a) The nonrecurring charge for the following features applies on a per Carrier Identification Code (CIC), per end office basis. When direct routed or tandem routed, the first end office charge always applies. When the feature is requested for multiple end offices on the same access order, the additional end office charge applies per additional end office. For the Carrier Identification Code and International Carrier features when tandem routed, a tandem charge applies and is in addition to the end office charge. If more than one of the asterisked features is requested on the same access order, only the highest end office/tandem charge will apply.

Charges to change or delete a CIC will be waived when such changes are incurred in conjunction with the return of a CIC to Bellcore.

In addition, charges for the Flexible Automatic Number Identification feature will be waived until July 1, 1998.

* For Services ordered under MVP, refer to Section 38.3(E)(5). (C)

(This page filed under Transmittal No. 2852 )

Issued: December 15, 2000 Effective: December 30, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-133.1 Cancels 1st Revised Page 6-133.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges* (Cont'd) (C)

(B) Nonrecurring Charges for Installation of Features (Cont'd)

(1) (Cont'd)

(a) (Cont'd)

Automatic Number Identification (for FGD*)

Carrier Identification Code - Establish/Add (for FGD or BSA-D*) - Change (for FGD or BSA-D*) - Delete (for FGD or BSA-D) - Establish/Add (for FGB or BSA-B) - Change (for FGB or BSA-B) - Delete (for FGB or BSA-B) Carrier Selection Parameter (for FGD or BSA-D*) Cut Through (for FGD, BSA-D*) FGD or BSA-D with 950 Access* Flexible Automatic Number Identification (for FGD*) International Carrier Feature (for FGD, BSA-D*) Overlap Outpulsing (for FGD, BSA-D*)

* For Services ordered under MVP, refer to Section 38.3(E)(5). (C)

(This page filed under Transmittal No. 2852 )

Issued: December 15, 2000 Effective: December 30, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-134 Cancels 3rd Revised Page 6-134

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges (Cont'd) (D)

(B) Nonrecurring Charges for Installation of Features (Cont'd)

(1) (Cont'd)

(b) The nonrecurring charge for the following feature applies on a per end office basis. Whether direct routed or tandem routed, the first end office charge always applies. When the feature is requested for multiple end offices on the same access order, the additional end office charge always applies per end office.

Service Class Routing

(c) When the following features are installed for a trunk group, the nonrecurring charge applies per trunk group.

Alternate Traffic Routing - Multiple Traffic Routing Systems (for FGB and FGD) (D) - End Office Alternate Routing (for FGB and FGD) Automatic Number Identification (for FGB and BSA-B) (D) Trunk Access Limitation

(d) The nonrecurring charge for the following feature applies only when the feature is ordered subsequent to the CIC installation. When applicable, the nonrecurring charge is assessed on either a per tandem or a per end office basis. When tandem routed, only the tandem charge applies. When end office routed, only the end office charge applies.

Up to 7 Digits Outpulsing (for FGB, BSA-B)

(D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-135 Cancels 4th Revised Page 6-135

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges* (Cont'd) (C)

(B) Nonrecurring Charges for Installation of Features (Cont'd)

(2) A nonrecurring charge will not apply to install the following features:

- MicroLink I Access Capability - Multifrequency Address Signaling - Signaling System 7 Signaling - 64 CCC - Multiple 64 CCC

However, charges applicable to other features ordered in conjunction with the above nonchargeable features will apply.

(3) A nonrecurring charge applies for the installation of the multiplexing feature as follows:

For the DS3 to DS1 multiplexing, a nonrecurring charge always applies to install this feature.

For DS1 to Voice Grade multiplexing, a nonrecurring charge applies only when this feature is installed to provide hubbing. Hubbing arrangements are described in 6.5.3 (Hubbing).

When the nonrecurring charge is applicable, it is applied on a per multiplexer basis.

(4) For all other features not listed above, a nonrecurring charge will apply only when these features are added or changed subsequent to the installation of the line or trunk.

* For Services ordered under MVP, refer to Section 38.3(E)(5). (C)

(This page filed under Transmittal No. 2852 )

Issued: December 15, 2000 Effective: December 30, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-136 Cancels 4th Revised Page 6-136

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges* (Cont'd) (C)

(C) Nonrecurring Charges for Installation of Basic Service Elements (BSEs)

(1) The nonrecurring charge for the following BSEs applies on a per Carrier Identification Code (CIC), per end office basis, except as noted in (2) following. When direct routed or tandem routed, the first end office charge always applies. When the BSE is requested for multiple end offices on the same access order (i.e., tandem routed), the additional end office charge applies per additional end office.

Automatic Number Identification (ANI)

(2) If more than one of the BSEs listed in 6.8.2(C)(1) above is requested on the same access order, only the highest end office charge will apply.

When a BSE listed in 6.8.2(C)(1) above is provisioned with BSA-D and one of the asterisked features in 6.8.2(B)(1)(a) is requested on the same access order, nonrecurring charges apply to the BSE only if it has the highest nonrecurring charge. If so, nonrecurring charges are assessed as set forth in (1) preceding.

(3) A nonrecurring charge applies on a per trunk group basis when the following BSE is installed

Alternate Traffic Routing - End Office Alternate Routing - Multiple Traffic Routing

* For Services ordered under MVP, refer to Section 38.3(E)(5). (C)

(This page filed under Transmittal No. 2852 )

Issued: December 15, 2000 Effective: December 30, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-137 Cancels 4th Revised Page 6-137

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges* (Cont'd) (C)

(C) Nonrecurring Charges for Installation of Basic Service Elements (BSEs) (Cont'd)

(4) A nonrecurring charge applies on a first and additional per line basis for the following BSEs.

Multiline Hunt Group - Circular Hunting - Preferential Hunting - Regular Line Hunting Nonhunting Number Arrangement Uniform Call Distribution Arrangement

(5) A nonrecurring charge applies on an initial and subsequent order basis per arrangement for the following BSEs.

Queuing Remote Make Busy Remote Make Busy - Trunk Side

(6) A nonrecurring charge applies on an initial and subsequent order basis per announcement provided for the following BSE.

Recorded Announcements

(7) A nonrecurring charge applies on a per trunk termination basis when the following BSE is installed.

Direct Inward Dialing (DID)

(8) A nonrecurring charge applies on a per arrangement basis for the following BSEs.

Simplified Message Desk Interface (SMDI) Simplified Message Desk Interface - Expanded (SMDI-E)

(9) The nonrecurring charge for the following element will be waived until July 1, 1998.

Flexible Automatic Number Identification (FLEX-ANI)

* For Services ordered under MVP, refer to Section 38.3(E)(5). (C)

(This page filed under Transmittal No. 2852 )

Issued: December 15, 2000 Effective: December 30, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-138 Cancels 1st Revised Page 6-138

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges* (Cont'd) (C)

(D) Nonrecurring Charges for Service Rearrangements

Service rearrangements are changes to existing services which do not result in either (1) a change in the minimum period requirements, or (2) a change in the physical location of the point of termination at the customer's premises or the customer's end user's premises.

Changes which result in (1) the establishment of new minimum period obligations are treated as a discontinuance of the existing service and an installation of a new service and all applicable nonrecurring charges will apply. Changes in (2) the physical location of the point of termination are treated as moves and are described and charged for as specified in 6.8.10 (Moves).

A change in the customer of record (i.e., existing Access Service is provided and billed to a different entity) is considered a service rearrangement when the new customer assumes liability for all current and prior charges for the service(s) and has complied with the regulations and conditions specified in 2.2.1 (Assignment and Transfer of Facilities). An Access Order Charge will apply when a change of customer name or a change in billing data (name, address, contact name, or telephone number) is requested in conjunction with a change in the customer of record as described in 5.3.1 (Access Order Charge).

When a customer requests one or more of the following service rearrangements, nonrecurring charges will apply as follows.

* For Services ordered under MVP, refer to Section 38.3(E)(5). (C)

(This page filed under Transmittal No. 2852 )

Issued: December 15, 2000 Effective: December 30, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-139 Cancels 4th Revised Page 6-139

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd) (C) 6.8.2 Nonrecurring Charges* (Cont'd)

(D) Nonrecurring Charges for Service Rearrangements (Cont'd)

(1) The following administrative changes will be made without charge to the customer, except where noted:

- Change of customer name, (i.e., the customer of record does not change but rather the customer of record changes its name--e.g., ABC Communications to All Business Concepts Communications) - Change of customer's or customer's end user premises address when the change of address is not a result of a physical relocation of the service - Change in billing data (name, address, contact name or telephone number) - Change in agency authorization - Change of customer's or customer's end user contact name or contact telephone number - Change in jurisdiction - Change of transport service type designation (switched to special or vice versa) that does not require a physical change to the service

(2) When a customer requests the following administrative changes, a nonrecurring charge will apply on a per line, per trunk group or per connection type basis when adding or changing the feature subsequent to the installation of the line or trunk. If more than one change is requested on the same Access Order, only one charge will apply per line or trunk group.

- Change of Access Carrier Name Abbreviation (ACNA) - Change of Billing Account Number (BAN) (e.g., a customer request to categorize end users by city, town, etc. using specific blocks of Billing Account Numbers) - Change of Customer Circuit Identification (CKR)

* For Services ordered under MVP, refer to Section 38.3(E)(5).

(This page filed under Transmittal No. 2852 )

Issued: December 15, 2000 Effective: December 30, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-140 Cancels 7th Revised Page 6-140

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges* (Cont'd) (C)

(D) Nonrecurring Charges for Service Rearrangements (Cont'd)

(3) Rearrangements of Switched Access features or BSEs will incur nonrecurring charges specific to the feature or BSE being rearranged.

(4) Except as specified in 6.8.2(D)(7) and 6.8.2(D)(9) following, rearrangements of lines, trunks, channels or Switched Transport facilities will be treated as a discontinuance of the existing service and an installation of a new service and all applicable nonrecurring charges will apply as specified in 6.9 (Rates and Charges).

(5) Rearrangements of the STP Port Termination utilized for CCS/SS7 Interconnection Service will be treated as a discontinuance of the existing service and an installation of a new service. The STP Port Termination Nonrecurring Charge will apply as specified in 23.4 (Rates and Charges).

(6) Rearrangements to convert FGD or BSA-D trunks from the following arrangements will incur nonrecurring charge(s) specified in 6.9.2(E):

- Multifrequency address (MF) signaling to SS7 signaling. - SS7 signaling to MF signaling. - MF signaling to SS7 signaling with 64 CCC. - MF signaling to SS7 signaling with 64 CCC and Multiple 64 CCC. - SS7 signaling to SS7 signaling with 64 CCC. - SS7 signaling to SS7 signaling with 64 CCC and Multiple 64 CCC. - SS7 signaling with 64 CCC to SS7 signaling with 64 CCC and Multiple 64 CCC. - Subsequent rearrangement of Multiple 64 CCC.

* For Services ordered under MVP, refer to Section 38.3(E)(5). (C)

(This page filed under Transmittal No. 2852 )

Issued: December 15, 2000 Effective: December 30, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 6-140.1 Cancels 10th Revised Page 6-140.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges (Cont'd)

(D) Nonrecurring Charges for Service Rearrangements (Cont'd)

(7) All other changes to existing services will be treated as a discontinuance of the existing service and an installation of a new service. The nonrecurring charges described in (A) preceding (Nonrecurring Charges for Installation of Service), will apply for this work activity.

(D) │ │ │ │ │ │ │ │ │ (D)

(This page filed under Transmittal No. 2712 )

Issued: July 21, 1998 Effective: August 5, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 6-140.2 Cancels 11th Revised Page 6-140.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges (Cont'd)

(D) Nonrecurring Charges for Service Rearrangements (Cont'd)

(D)

(This page filed under Transmittal No. 2740 )

Issued: December 17, 1998 Effective: January 1, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 6-140.3 Cancels 8th Revised Page 6-140.3

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.2 Nonrecurring Charges (Cont'd)

(D) Nonrecurring Charges for Service Rearrangements (Cont'd)

(D)

(D)

(This page filed under Transmittal No. 2740 )

Issued: December 17, 1998 Effective: January 1, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-141 Cancels 6th Revised Page 6-141

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates

Monthly rates (including fixed and per mile rates) are flat recurring rates that apply each month or fraction thereof that a specific rate element is provided. For billing purposes, each month is considered to have thirty (30) days.

Usage rates for each line or trunk are rates that apply on a per unit basis (e.g., per call, per access minute or per access minute per mile) when a specific rate element is used. Usage charges are accumulated over a monthly period.

Usage rates for FGD or BSA-D Service utilizing the Multiple 64 CCC feature will apply on a per unit basis. For Multiple 64 CCC, a unit represents a FGD or BSA-D trunk with 64 Kbps of bandwidth. The Multiple 64 CCC feature (n x 64 Kbps) is available in increments from 64 Kbps to 1536 Kbps bandwidth, where n may be from 1 to 24 and represents the incremental number of 64 Kbps of bandwidth per call.

Rates and charges for Switched Access Service depend generally on its use by the customer, i.e., for MTS or WATS services, MTS-WATS equivalent services or other services (e.g., foreign exchange service); and the feature group or basic serving arrangement. (D)

When Local Switching (LS1 and LS2), and Information Surcharge usage rates are applicable, they are applied as premium rates. (D)

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-141.1 Cancels 3rd Revised Page 6-141.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(A) Premium Rate Application

(1) Bundled and Unbundled Local Switching LS1

When Bundled or Unbundled Local Switching rates apply, LS1 rates are assessed to:

- FGA and BSA-A access minutes. (D)

- FGB and BSA-B access minutes. (D)

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-142 Cancels 7th Revised Page 6-142

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(A) Premium Rate Application (Cont'd)

(2) Bundled and Unbundled Local Switching LS2

When Bundled or Unbundled Local Switching rates apply, LS2 rates are assessed to:

(a) FGA, BSA-A, FGB and BSA-B access minutes that terminate on WATS Access Line Service provided at WATS serving offices; (D)

(b) FGD and BSA-D access minutes;

(c) 800 NPAS access minutes (T)

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-142.1 Cancels Original Page 6-142.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(A) Premium Rate Application (Cont'd) (D)

(D)

(T) (3) Information Surcharge

When Information Surcharge rates apply, premium rates are assessed consistent with the application of premium Local Switching rates.

(This page filed under Transmittal No. 2788 )

Issued: October 26, 1999 Effective: November 2, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 6-143 Cancels 8th Revised Page 6-143

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(B) Reserved for Future Use (T)

(D)

(D)

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-144 Cancels 2nd Revised Page 6-144

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

Material previously appearing on this page has been revised and now appears on 3rd Revised Page 6-143.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-145 Cancels 2nd Revised Page 6-145

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(C) Reserved for Future Use (T) (D)

(D)

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-146 Cancels 1st Revised Page 6-146

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(C) Reserved for Future Use (Cont’d) (T) (D)

(D)

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-147 Cancels 1st Revised Page 6-147

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(C) Reserved for Future Use (Cont’d) (T) (D)

(D)

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-148 Cancels 4th Revised Page 6-148

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(C) Reserved for Future Use (Cont’d) (T) (D)

(D)

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-149 Cancels 3rd Revised Page 6-149

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(D) Premium Rate Application for BSEs (D)

Recurring rates for BSEs are applied as premium rates. (D)

(1) Premium rates apply to:

(a) BSEs provided at end offices and access tandems. (C)

(b) BSEs provided to customers who furnish interstate MTS/WATS.

(D)

(D)

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-149.1 Cancels 3rd Revised Page 6-149.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(E) Switched Transport

(1) Entrance Facility

A monthly rate applies to each Entrance Facility on a per channel basis (for Voice Grade) or on a per (D) connection type basis (for DS1 and DS3). An Entrance Facility applies even when the customer's premises and the serving wire center are located in the same building.

(2) Direct-Trunked Transport

(a) Except as set forth in (b) following, for each Direct-Trunked Transport facility provided, the following rates apply:

- a fixed monthly rate - a monthly rate per mile

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-149.2 Cancels 2nd Revised Page 6-149.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(E) Switched Transport (Cont'd)

(2) Direct-Trunked Transport (Cont'd)

(a) (Cont'd)

on a per channel basis (per Voice Grade) or on a per connection type basis (for DS1 and DS3). (D) Mileage measurement is described in Section 6.8.5 (T) (Determining Switched Transport Mileage).

(b) When the customer orders a Direct-Trunked Transport facility for trunk side Switched Access services between the serving wire center and a host office, Common Transport will apply between the host office and each Remote Switching System or Remote Switching Module served by the host.

When the customer orders terminating line side Switched Access services, Direct-Trunked Transport will apply between the serving wire center and the end office providing the dial tone service. Common Transport will apply between the end office providing the dial tone service and the end office where the call is terminated.

(c) On tandem routed services the Direct-Trunked Transport rates apply to the interoffice links between the serving wire center and the access tandem.

(d) Mileage measurement is described in Section 6.8.5 (T) (Determining Switched Transport Mileage and Charges).

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-149.3 Cancels 6th Revised Page 6-149.3

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(E) Switched Transport (Cont'd) (T)

(3) Tandem-Switched Transport

Tandem-Switched Transport is provided as two subelements:

- Tandem-Switched Transmission/Common Transport - Host Remote Transmission - Tandem Switching - Dedicated Tandem Trunk Port - Tandem End Office Multiplexing

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2788 )

Issued: October 26, 1999 Effective: November 2, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-149.4 Cancels 3rd Revised Page 6-149.4

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd) (T) (E) Switched Transport (Cont'd)

(3) Tandem-Switched Transport (Cont'd)

(a) Tandem-Switched Transmission/Common Transport

(1) Tandem-Switched Transmission/Common Transport has two rates: a per access minute of use rate and a per access minute of use per mile rate. The per access minute of use rate applies to the non distance sensitive portion of the Tandem-Switched Transport for the termination of both ends of the facility. The per access minute of use per mile rate applies to the distance sensitive portion of the Tandem-Switched Transport facility. When the mileage for Tandem-Switched Transmission/Common Transport is zero, these rates will not apply.

A per access minute of use and the per access minute of use per mile rate also applies to interoffice links that are provided for the common use of all customers but which are not switched through an access tandem. The Telephone Company will identify this application of Tandem-Switched Transmission as Common Transport.

Common Transport may be associated with both tandem routed services and with direct (T) routed services (as set forth in 6.8.3(E)(2)(b)). Mileage for Common Transport is always measured separately from Tandem-Switched Transmission and Direct- Trunked Transport.

(2) Mileage measurement is described in 6.8.5 (Determining Switched Transport Mileage and Charges).

(This page filed under Transmittal No. 2788 )

Issued: October 26, 1999 Effective: November 2, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-149.5 Cancels 4th Revised Page 6-149.5

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(E) Switched Transport (Cont'd) (T)

(3) Tandem-Switched Transport (Cont'd)

(b) Host Remote Transmission

(1) A per access minute of use and a per access minute of use per mile rate also applies to interoffice links that are provided for the common use of all customers but which are not switched through an access tandem.

Host Remote Transmission may be associated with both tandem routed services and direct routed services, such as when Tandem-Switched Transport is ordered to a host office to access remotes (as set forth in 6.8.3 (E)(2)(b)). Mileage is always measured (T) separately for Tandem-Switched Transmission and Direct-Trunked Transport.

(2) Mileage measurement is described in 6.8.5 (Determing Switched Transport Mileage and Charges).

(c) Tandem Switching

A per access minute of use rate applies to each Tandem-Switched Transport facility for the switching functions provided by the access tandem.

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2788 )

Issued: October 26, 1999 Effective: November 2, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-149.6 Cancels 4th Revised Page 6-149.6

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(E) Switched Transport (Cont'd)

(3) Tandem-Switched Transport (Cont'd)

(d) Tandem End Office Multiplexing

A per minute of use charge applies for the use of the multiplexing equipment on the end office side of the access tandem and to each FGA BSA-A terminating minute of use between the dial tone office and the end office.

(e) Dedicated Tandem Trunk Port

A monthly rate applies, per port, for each in service dedicated trunk on the serving wire center side of the access tandem.

Dedicated Tandem Trunk Port is billed as (C) originating and terminating based on a Percent Originating Usage (POU) factor of 50%.

Originating Calculation = PIU x Originating Rate x Quantity x POU

Terminating Calculation = PIU x Terminating Rate x Quantity x (100-POU) (C)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 3373 )

Issued: April 30, 2013 Effective: May 15, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-150 Cancels 6th Revised Page 6-150

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(F) Local Switching

(1) Dedicated End Office Port

A monthly rate applies, per line or per trunk, for each in service dedicated line or trunk terminating in the end office port.

Dedicated End Office Port is billed as originating and (C) terminating based on a Percent Originating Usage (POU) factor of 50%.

Originating Calculation = PIU x Originating Rate x Quantity x POU

Terminating Calculation = PIU x Terminating Rate x Quantity x (100-POU) (C)

(2) Shared End Office Trunk Port

A per minute of use charge applies to the shared end office trunk ports for termination of common transport trunks for tandem-routed traffic.

(G) DNAL Termination

A monthly rate applies only to the DNAL BSA for each termination requested by the customer. One DNAL Termination charge applies per each point of termination.

(H) DNAL Mileage

The DNAL Mileage charge applies only to the DNAL BSA and is calculated according to mileage band. There are two rates that apply per band, i.e., a fixed monthly rate per mileage band and a monthly rate per band.

A fixed monthly rate applies, per mileage band, for each DNAL channel between the customer designated premises and the Telephone Company switch where the DNAL is terminated.

A monthly rate per mile applies to each airline mile between the serving wire center of the customer designated premises and the Telephone Company switch where the BSE requiring the DNAL is provided.

(This page filed under Transmittal No. 3373 )

Issued: April 30, 2013 Effective: May 15, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-150.1 Cancels 4th Revised Page 6-150.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(I) 800 Number Portability Access Service (NPAS) (T)

The following rate elements are applicable to 800 NPAS:

(1) 800 NPAS Query

The 800 NPAS Query rate applies per call for each 800 query received at the Telephone Company SCP that returns a valid carrier identification code providing the appropriate routing information of that call and results in the delivery of the 800 call to the customer.

(2) POTS Translation

The POTS Translation rate applies per POTS Translation query and will be in addition to the 800 NPAS Query charge.

(3) Call Validation

The Call Validation rate applies per Call Validation query and will be in addition to the 800 NPAS Query charge.

(4) Call Handling and Destination

The Call Handling and Destination rate applies per Call Handling and Destination query and will be in addition to the 800 NPAS Query charge.

(This page filed under Transmittal No. 2788 )

Issued: October 26, 1999 Effective: November 2, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-150.2 Cancels 6th Revised Page 6-150.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.3 Monthly Recurring and Usage Rates (Cont'd)

(I) 800 Number Portability Access Service (NPAS) (Cont'd) (T)

The 800 NPAS rate elements will be billed to the customer utilizing FGD/BSA-D trunk side Switched Access Service for the delivery of 800 calls.

(J) Multiplexing (T)

A monthly rate applies to the multiplexing feature as follows:

- For the DS3 to DS1 multiplexer, a monthly rate always applies.

- For the DS1 to Voice Grade multiplexer, a monthly rate applies only when the multiplexer provides hubbing functions. Hubbing arrangements are described in 6.5.3 (Hubbing).

When the monthly rate is applicable, it is applied on a per multiplexer basis.

(K) Advanced Carrier Identification Service (ACIS) Carrier (T) Identification Feature (CIF)

The Carrier Identification Feature (CIF) applies on a per call basis for the functionality used to identify the access customer to whom the PCS call is to be delivered. The CIF rate element applies to each PCS call requiring translation which is successfully delivered to the access customer.

(This page filed under Transmittal No. 2788 )

Issued: October 26, 1999 Effective: November 2, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-151 Cancels 1st Revised Page 6-151

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.4 Determining Chargeable Access Minutes

Chargeable access minutes are developed by the Telephone Company based upon recordings of customer traffic to end office or access tandem switches where recording capabilities exist. If such recordings are unavailable, the Telephone Company develops chargeable access minutes through the use of assumed minutes, recorded minutes which have been factored or imputed minutes.

(A) Determining Chargeable Access Minutes from Recordings

The recorded access minutes are the chargeable access minutes for the following types of usage:

- Originating calls over MTS/WATS-type FGA, FGB and FGD

- Originating calls over MTS/WATS type BSA-A, BSA-B and BSA-D

- Terminating calls over FGA, FGB, and FGD (D)

- Terminating calls over BSA-D, BSA-B, and BSA-D (D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-152 Cancels Original Page 6-152

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.4 Determining Chargeable Access Minutes

(A) Determining Chargeable Access Minutes from Recordings (Cont'd)

(1) Measuring Recorded Access Minutes

(a) FGA or BSA-A

When recording originating calls over FGA and BSA-A, usage measurement begins when the originating FGA or BSA-A entry switch receives an off-hook supervisory signal forwarded from the customer's point of termination. This off-hook signal is provided by the customer's equipment. The measurement of originating call usage over FGA or BSA-A ends when the originating FGA or BSA-A entry switch receives an on-hook supervisory signal from either the originating end user's end office (indicating that the originating end user has disconnected), or the customer's point of termination, whichever is recognized first by the entry switch.

For terminating calls over FGA and BSA-A, usage measurement begins when the terminating FGA or BSA-A entry switch receives an off-hook supervisory signal from the terminating end user's end office (indicating that the terminating end user has answered). The measurement of terminating call usage over FGA or BSA-A ends when the terminating FGA or BSA-A entry switch receives an on-hook supervisory signal from either the terminating end user's end office (indicating that the terminating end user has disconnected), or the customer's point of termination, whichever is recognized first by the entry switch.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-153 Cancels 1st Revised Page 6-153

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd) (T)

6.8.4 Determining Chargeable Access Minutes (S)

(A) Determining Chargeable Access Minutes from Recordings (Cont'd)

(1) Measuring Recorded Access Minutes (Cont'd)

(b) FGB and BSA-B

When recording originating calls over FGB and BSA-B, usage measurement begins when the originating FGB or BSA-B entry switch receives answer supervision forwarded from the customer's point of termination (indicating that the customer's equipment has answered). Answer supervision should be returned as set forth in reference document FR-NWT-000064 LATA Switching System General Requirements. The measurement of originating call usage over FGB or BSA-B ends when the originating FGB or BSA-B entry switch receives disconnect supervision from either the originating end user's end office (indicating that the originating end user has disconnected), or the customer's point of termination, whichever is recognized first by the entry switch.

For terminating calls over FGB and BSA-B, usage measurement begins when the terminating FGB or BSA-B entry switch receives answer supervision from the terminating end user's end office (indicating that the terminating end user has answered). The measurement of terminating call usage over FGB or BSA-B ends when the terminating FGB or BSA-B entry switch receives disconnect supervision from either the terminating end user's end office (indicating that the terminating end user has disconnected), or the customer's point of termination, whichever is recognized first by the entry switch.

Reissued material is scheduled to become effective September 6, 1993.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-154 Cancels 1st Revised Page 6-154

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.4 Determining Chargeable Access Minutes

(A) Determining Chargeable Access Minutes from Recordings (Cont'd)

(1) Measuring Recorded Access Minutes (Cont'd)

(c) (D) .

(D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-155 Cancels 1st Revised Page 6-155

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.4 Determining Chargeable Access Minutes (Cont'd)

(A) Determining Chargeable Access Minutes from Recordings (Cont'd)

(1) Measuring Recorded Access Minutes (Cont'd)

(d) FGD and BSA-D

When recording originating calls over FGD and BSA-D with multifrequency address signaling, usage measurement begins when the originating FGD or BSA-D entry switch receives the first wink supervisory signal forwarded from the customer's point of termination. The measurement of originating call usage over FGD or BSA-D ends when the originating FGD or BSA-D entry switch receives disconnect supervision from either the originating end user's end office (indicating that the originating end user has disconnected), or the customer's point of termination, whichever is recognized first by the entry switch.

For terminating calls over FGD and BSA-D with multifrequency address signaling, the measurement of access minutes begins when the terminating FGD or BSA-D entry switch receives answer supervision from the terminating end user's end office (indicating that the terminating end user has answered). The measurement of terminating call usage over FGD or BSA-D ends when the terminating FGD or BSA-D entry switch receives disconnect supervision from either the terminating end user's end office (indicating that the terminating end user has disconnected), or the customer's point of termination, whichever is recognized first by the entry switch.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-155.1 Cancels Original Page 6-155.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.4 Determining Chargeable Access Minutes (Cont'd)

(A) Determining Chargeable Access Minutes from Recordings (Cont'd)

(1) Measuring Recorded Access Minutes (Cont'd)

(d) FGD and BSA-D (Cont'd)

When recording originating calls over FGD and BSA-D with SS7 signaling, usage measurement begins with the transmission of the initial address message by the switch for direct trunk groups and with the receipt of an exit message by the switch for tandem trunk groups. The measurement of originating FGD and BSA-D call usage ends when the entry switch receives or sends a release message, whichever occurs first.

For terminating calls over FGD and BSA-D with SS7 signaling, the measurement of access minutes begins when the terminating recording switch receives answer supervision from the terminating end user. On directly routed trunk groups or on tandem routed trunk groups, the Telephone Company switch receives answer supervision and sends the indication to the customer in the form of an answer message. The measurement of terminating FGD and BSA-D call usage ends when the entry switch receives or sends a release message, whichever occurs first.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-156 Cancels 1st Revised Page 6-156

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.4 Determining Chargeable Access Minutes

(A) Determining Chargeable Access Minutes from Recordings (Cont'd)

(2) Rounding Recorded Access Minutes

(a) FGA and BSA-A access minutes or fractions thereof (the exact value of the fraction being a function of the switch technology where the measurement is made) are accumulated over the billing period for each line or hunt group and are then rounded to the nearest access minute for each line or hunt group.

(b) FGB, FGD, BSA-B, and BSA-D access minutes or (D) fractions thereof (the exact value of the fraction being a function of the switch technology where the recording is made) are accumulated over the billing period for each end office and are then rounded to the nearest access minute for each end office.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-157 Cancels 1st Revised Page 6-157

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.4 Determining Chargeable Access Minutes (Cont'd)

(B) Determining Chargeable Access Minutes from Factored Recordings

The chargeable access minutes are derived from recorded minutes through the use of Telephone Company factors (as described in the four steps following) for the following types of usage:

- Originating calls over FX/ONAL FGA and FX/ONAL BSA-A (D) (D)

(1) Measuring Recorded Access Minutes

(a) FX/ONAL FGA and FX/ONAL BSA-A

When recording originating calls over FX/ONAL FGA and FX/ONAL BSA-A, usage measurement begins when the originating FGA or BSA-A entry switch receives an off-hook supervisory signal forwarded from the customer's point of termination. This off-hook signal is provided by the customer's equipment when the called party answers. The measurement of originating call usage over FX/ONAL FGA or FX/ONAL BSA-A ends when the originating FGA or BSA-A entry switch receives an on-hook supervisory signal from either the originating end user's end office (indicating that the originating end user has disconnected), or the customer's point of termination, whichever is recognized first by the entry switch.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-158 Cancels 1st Revised Page 6-158

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.4 Determining Chargeable Access Minutes (Cont'd)

(B) Determining Chargeable Access Minutes from Factored Recordings (Cont'd)

(1) Measuring Recorded Access Minutes (Cont'd)

(b) (D)

(D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-159 Cancels 2nd Revised Page 6-159

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.4 Determining Chargeable Access Minutes (Cont'd)

(B) Determining Chargeable Access Minutes from Factored Recordings (Cont'd)

(2) Rounding Recorded Access Minutes

Rounding provisions as specified in Section 6.8.4(A)(2) preceding will apply to originating FX/ONAL FGA and FX/ONAL BSA-A access minutes. (D)

(3) Factoring Recorded Access Minutes

Step 1: Obtain recorded originating minutes and messages (measured as set forth in (1) preceding) for FX/ONAL FGA and BSA-A from (D) the appropriate recording data.

Step 2: Obtain the total attempts by dividing the originating measured messages by the completion ratio. Completion Ratios (CR) are obtained separately for the major call categories such as DDD, operator, ACIS, 800, 900, Directory Assistance and International from a sample study which analyzes the ultimate completion status of the total attempts which receive acknowledgment from the customer. That is, measured messages divided by Completion Ratio equals total attempts.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-160 Cancels Original Page 6-160

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.4 Determining Chargeable Access Minutes (Cont'd)

(B) Determining Chargeable Access Minutes from Factored Recordings (Cont'd)

(3) (Cont'd)

Step 3: Obtain the total Non-Conversation Time Additive (NCTA) by multiplying the total attempts (obtained in Step 2) by the NCTA per attempt ratio. The NCTA per attempt ratio is obtained from a sample study identified in Step 2 above by measuring the non-conversation time associated with both completed and incompleted attempts. The total NCTA is the time on a completed attempt from customer acknowledgment of receipt of call to called party answer (set up and ringing) plus the time on an incompleted attempt from customer acknowledgment of call until the access tandem or end office receives a disconnect signal (ring - no answer, busy or network blockage). That is, total attempts times non-conversation time per attempt ratio equals Total NCTA.

Step 4: Obtain total chargeable originating access minutes by adding the total NCTA (obtained in Step 3) to the recorded originating measured minutes (obtained in Step 1). That is, measured minutes plus NCTA equals chargeable originating access minutes.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-161 Cancels Original Page 6-161

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.4 Determining Chargeable Access Minutes (Cont'd)

(C) Determining Chargeable Access Minutes from Assumed Minutes

Assumed minutes are used for FGA or BSA-A services which originate or terminate in end offices not equipped with measurement capabilities and are applied per line. When assumed minutes are used, the assumed minutes are the chargeable access minutes. The assumed average interstate access minutes for FGA or BSA-A are as follows.

(1) When a FGA or BSA-A Switched Access Service arranged for two way calling is provided where neither the originating nor terminating access minutes are recorded, the assumed average interstate access minutes are 5,171 access minutes. 1,810 access minutes are assumed to be originating and 3,361 access minutes are assumed to be terminating.

(2) On a trunk arranged for two way calling, where recording capability exists for either originating or terminating usage, but not both, the number of access minutes per trunk will be an assumed 5,171 or the recorded usage, whichever is greater. If the recorded usage exceeds 5,171 access minutes, it will be assumed that there is zero usage in the unrecorded direction. If the recorded usage is less than 5,171 access minutes, the usage in the unrecorded direction will be assumed to be 5,171 access minutes minus the recorded usage (e.g., 5,171 - 1,171 recorded = 4,000 assumed in the unrecorded direction).

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-162 Cancels Original Page 6-162

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.4 Determining Chargeable Access Minutes (Cont'd)

(C) Determining Chargeable Access Minutes from Assumed Minutes (Cont'd)

(3) When a FGA or BSA-A Switched Access Service arranged for originating calling only is provided where originating access minutes are not recorded, the assumed average originating access minutes are 1,810 access minutes.

(4) When a FGA or BSA-A Switched Access Service arranged for terminating calling only is provided where terminating access minutes are not recorded, the assumed average terminating access minutes are 3,361 access minutes.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-163 Cancels 1st Revised Page 6-163

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.5 Determining Switched Transport Mileage and Charges

(A) Determining Switched Transport Mileage

The mileage to be used to determine the monthly rate for Tandem Switched Transport is calculated on the airline (C) distance between the end office switch where the call carried by Switched Transport service originates or terminates and the Access Tandem. Mileage to be used to (C) determine the monthly rate for Direct-Trunked Transport is │ calculated on the airline distance between the access │ tandem and the customers serving wire center. Where (C) applicable, the V&H coordinates method is used to determine mileage. This method is described in the National Exchange Carrier Association, Inc., Tariff F.C.C. No. 4, Wire Center and Interconnection Information.

Exceptions to the mileage measurement rules are as follows:

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-163.1 Cancels Original Page 6-163.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.5 Determining Switched Transport Mileage and Charges (Cont'd)

(A) Determining Switched Transport Mileage (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ (D)

(1) Hubbing (T) When hubbing is requested at a location other than the serving wire center, the V&H coordinates method is used to separately calculate mileage for Direct- Trunked Transport from the serving wire center to hub, from hub to hub (if more than one hub is provided) and from hub to access tandem or from hub to end office (C) where the call originates or terminates. (C)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-163.2 Cancels 3rd Revised Page 6-163.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.5 Determining Switched Transport Mileage and Charges (Cont'd)

(A) Determining Switched Transport Mileage (Cont'd)

(2) Host-Remote (T)

When Direct-Trunked Transport is provided to a host- remote arrangement, mileage for Direct-Trunked Transport is calculated using the V&H coordinates of the customer's serving wire center and the host office. Mileage for Host/Remote Transmission is calculated using the V&H coordinates of the host office and the remote switching system or remote switching module where the call originates or terminates.

When Tandem-Switched Transport is provided to a host- remote arrangement, mileage for Tandem-Switched Transmission is calculated using the V&H coordinates (C) of the tandem and the host office. Mileage for (C) Host/Remote Transmission is calculated using the V&H Coordinates of the host office and the remote switching system or remote switching module where the call originates or terminates.

(3) Class 4/5 Office (T) When Direct-Trunked Transport is provided to the subtending end office portion of the Class 4/5 switch (i.e., a switch that functions as both an access tandem and an end office), mileage for Direct-Trunked Transport is calculated using the V&H coordinates of the customer's serving wire center and the Class 4/5 switch.

(D) │ │ │ │ │ │ │ (D)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(T)

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-163.3 Cancels Original Page 6-163.3

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.5 Determining Switched Transport Mileage and Charges (Cont'd)

(A) Determining Switched Transport Mileage (Cont'd)

(3) Class 4/5 Office (Cont'd) (T)

Mileage for Direct-Trunked transport is calculated (C) using the V&H coordinates method of the customer's serving wire center and the Class 4/5 Switch. Mileage for Tandem-Switched Transmission is calculated using the V&H coordinates of the Class 4/5 switch and the subtending end office where the call originates or terminates.

(4) Line Side Switched Access (T)

When Direct-Trunked Transport is provided for line side Switched Access service (i.e., FGA or BSA-A), mileage is measured differently for originating and terminating calls.

For originating line side calls, mileage for Direct- Trunked Transport is calculated using the V&H coordinates of the customer's serving wire center and the dial tone office of the line side service.

For terminating line side calls, mileage for Direct- Trunked Transport is calculated using the V&H coordinates of the customer's serving wire center and the end office switch where the dial tone for the line side Switched Access service is provided and mileage for Common Transport is calculated using the V&H coordinates of the dial tone office and the end office where the call is switched to terminate.

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-163.4 Cancels 2nd Revised Page 6-163.4

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.5 Determining Switched Transport Mileage and Charges (Cont'd)

(A) Determining Switched Transport Mileage (Cont'd)

(5) Originating FGB and BSA-B

When a Percent Direct Routed factor is utilized for originating FGB or BSA-B, Switched Transport will be apportioned between the two transmission routes as set forth in 6.7.16 (Percent Direct Routed Factor). This apportionment will serve as the basis for Switched Transport mileage calculations and the customer will be billed accordingly.

(6) (D)

(D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-164 Cancels 2nd Revised Page 6-164

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.5 Determining Switched Transport Mileage and Charges (Cont'd)

(A) Determining Switched Transport Mileage (Cont'd)

(7) Alternate Traffic Routing

When the Alternate Traffic Routing feature is provided with FGB and FGD or when the Alternate Traffic Routing (D) BSE is provided with BSA-B or BSA-D to provide service (D) to multiple customer switching systems, usage rated Switched Transport access minutes will be apportioned between the two transmission routes used to provide this feature. This apportionment will serve as the basis for Switched Transport mileage calculation.

For FGB or BSA-B the apportionment will be made using (D) standard Telephone Company traffic engineering methodology as set forth in reference document Technical Reference PUB SR-EOP-000191 Trunk Traffic Engineering Concepts and Applications. The apportionment will be based on the last trunk CCS desired for the high usage group [as described in 6.6.2(B)(1)(b) and 6.6.5(B)(1)(b) and the relative capacity ordered to the end office when the feature or BSE is provided at an end office switch or to the subtending end offices when the feature or BSE is provided at an access tandem switch.

The apportionment for FGD and BSA-D to a tandem route will be based on the actual measured data. Originating FGD and BSA-D usage from the access tandem to multiple customer premises will be apportioned in the same manner described for FGB and BSA-B above. (D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-165 Cancels 4th Revised Page 6-165

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.5 Determining Switched Transport Mileage and Charges (Cont'd)

(A) Determining Switched Transport Mileage (Cont'd)

(8) DNAL BSA (T)

Mileage for the DNAL BSA is calculated on the airline distance between the serving wire center of the customer's designated premises and the Telephone Company switch where the DNAL terminates.

(9) TRIS Connections (T)

When FGD traffic originates from a Telecommunications Relay Interconnection Service, the V&H coordinates method is used to determine the mileage between the customers serving wire center and the access tandem where the Telecommunications Relay Interconnection Service is located.

(10) 800 NPAS (T)

When 800 NPAS originates from an end office that routes its traffic through an intermediate access tandem or an 0SS tandem to an SSP equipped access tandem, a representative NXX for the intermediate tandem or the 0SS tandem will be used to determine the Switched Transport mileage for those end offices subtending the intermediate tandem or the 0SS tandem. The V&H coordinates of the representative NXX will be based on the average distance from all end offices subtending the tandem to the SSP equipped access tandem.

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-165.1 Cancels 7th Revised Page 6-165.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.5 Determining Switched Transport Mileage and Charges (Cont'd)

(A) Determining Switched Transport Mileage (Cont'd)

(11) Mobile Connections

When FGA or BSA-A terminates to a Mobile End Office Connection or when FGB, FGD, BSA-B, or BSA-D usage (D) originates from or terminates to a Mobile End Office Connection or a Mobile Access Tandem Connection, the V&H Coordinate method is used to determine the mileage between the customer's serving wire center and the end office or access tandem switch where the Mobile Carrier's Mobile End Office Connection or Mobile Access Tandem Connection is located.

(12) Expanded Interconnection

When Expanded Interconnection replaces some of or all of the Telephone Company provided interoffice transport, mileage for Direct-Trunked Transport and Tandem-Switched Transport is calculated using the V&H coordinates method to determine mileage between the serving wire center and the Expanded Interconnection arrangement or between the Expanded Interconnection arrangement and the end office where calls are switched to originate or terminate. In calculating mileage, all other rules set forth in (A) (Determining Switched Transport Mileage) applies.

(B) Determining Switched Transport Mileage Charges

To determine the rate to be billed, compute the mileage, and apply the rate shown in 6.9 (Rates and Charges). If the calculation results in a fraction of a mile, always round up to the next whole mile before applying the rate.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-166 Cancels Original Page 6-166

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.6 Minimum Period Charges

Switched Access Service is provided for a minimum period of one month. The charge for a month or fraction thereof is equal to the applicable minimum monthly charge for the capacity. Minimum period regulations are contained in 2.5.4 (Minimum Periods).

The minimum monthly charge for DNAL BSA is the sum for the applicable monthly rates for the BSA.

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-167 Cancels Original Page 6-167

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd) (T)

6.8.7 Message Unit Credit (T)

Calls from end users to the seven digit local telephone numbers associated with FGA and BSA-A are subject to Telephone Company local and general exchange service tariff charges (including message unit and toll charges as applicable) as well as any other applicable charges for the access service. The monthly bills rendered to customers for their FGA or BSA-A Service will include a credit to reflect any message unit charges the Telephone Company collects from their end users.

The credit will apply for recorded originating usage or for assumed originating usage, as appropriate for the FGA or BSA-A service provided. When the credit is applied on assumed usage, such credit will not exceed the assumed levels of usage specified in 6.8.4(C) (Determining Chargeable Access Minutes from Assumed (T) Minutes). No credit will apply for any terminating FGA or BSA-A access minutes. The factor for determining the applicable Message Unit Credit is listed in 6.9 (Rates and Charges).

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-168 Cancels 1st Revised Page 6-168

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.8 Reserved for Future Use (T) (D)

(D)

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-169 Cancels 2nd Revised Page 6-169

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.9 Change of Feature Group Type or Basic Serving Arrangement

(A) Change of Feature Group

Changes from one type of feature group to another will be treated as a discontinuance of one type of service and a start of another. Nonrecurring charges will apply, with one exception. When a customer upgrades a FGA or FGB (D) service to a FGD service, the nonrecurring charges for FGD Installation will not apply. At the time the customer upgrades from FGA or FGB to FGD, the customer may also (D) change the facility used to provide the upgraded service at no additional charge. This change may include the connection type only (e.g., change from Voice Grade to DS1), the facility type only (e.g., change from Direct- Trunked Transport to Tandem-Switched Transport), or both. However, any features that are added or changed when the customer upgrades the service to FGD will incur the charge(s) applicable to that feature. When a customer upgrades a FGA or FGB service to FGD service, minimum (D) period obligations will not change, i.e., the time elapsed in the existing minimum period obligations will be credited to the minimum period obligations for FGD service. For all other changes from one type of feature group to another, new minimum period obligations will be established.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-169.1 Cancels Original Page 6-169.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.9 Change of Feature Group Type or Basic Serving Arrangement (Cont'd)

(B) Change of Basic Serving Arrangements

Changes from one type of basic serving arrangement to another will be treated as a discontinuance of one type of service and a start of another. Nonrecurring charges will apply with one exception. When a customer upgrades a BSA-A or BSA-B to BSA-D service, the nonrecurring charges for (D) BSA-D installation will not apply. At the time the customer upgrades from BSA-A or BSA-B to BSA-D, the (D) customer may also change the facility used to provide the upgraded service at no additional charge. This change may include the connection type only (e.g., change from Voice Grade to DS1), the facility type only (e.g., change from Direct-Trunked Transport to Tandem-Switched Transport), or both. However, any features or BSE's that are added or changed when the customer upgrades the service to BSA-D will incur the charges applicable to that feature or BSE. When a customer makes such an upgrade, minimum period obligations will not change, i.e., the time elapsed in the existing minimum period obligations will be credited to the minimum period obligations for BSA-D service. For all other changes from one type of BSA to another, new minimum period obligations will be established.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-170 Cancels 5th Revised Page 6-170

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.9 Change of Feature Group Type or Basic Serving Arrangement

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ (D)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-171 Cancels 1st Revised Page 6-171

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.10 Moves

A move involves a change in the physical location of one of the following:

- The service facility (C) - The point of termination within a customer's premises (T) - The customer's premises

The charges for the move are dependent on the type of move requested by the customer.

(A) Service Facility Move (SFM) (T) │ An SFM is a customer-initiated move of one end of a │ Telephone Company central office distribution link (e.g., │ jumper cable, DSX patch cable, etc.) from one facility to │ another existing facility (of the same or higher │ transmission speed). If the SFM is requested for an │ Entrance Facility, the SFM must occur within a single │ Telephone Company location (central office). If the SFM │ requested involves Direct-Trunked Transport facilities or │ Tandem-Switched Transport facilities, the SFM must occur │ within a single Telephone Company End Office or Access │ Tandem, respectively. In order to be considered an SFM, │ all associated order activity (disconnects and new │ connects) must occur simultaneously and the facility to │ which service is being moved must be existing and have │ sufficient capacity to accept the moved service. │ │ An SFM may result in the change of one end point (i.e., │ customer premises location) of the circuit involved │ provided the following conditions are met: │ │ (1) The change of customer premises can only occur on the │ end of the circuit which has the CFA. │ (2) The customer premises locations involved in the change │ belongs to the same customer. │ - or - │ The customer premises locations involved in the change │ belongs to two different customers but the customer │ requesting the SFM has previously coordinated the │ activity such that all activity (disconnects and new │ connects) will occur simultaneously. If this │ coordination has not been accomplished beforehand, │ then the Telephone Company will proceed with the │ disconnect/new connect orders as non-related and new │ installation charges will apply for services being │ relocated. (T)

(This page filed under Transmittal No. 2588 )

Issued: November 13, 1996 Effective: December 28, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-171.1 Cancels 1st Revised Page 6-171.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.10 Moves (Cont'd)

(A) Service Facility Move (SFM) (Cont'd)

On facility moves involving multiplexed (subtending) (C) channels, SFMs shall be charged only for the higher level │ facility provided the entire facility (the full complement │ of subtending channels) is being moved concurrent to that │ particular SFM request. If the subtending channels are │ requested to be moved one at a time, the SFM will be │ charged on a per each channel moved basis. │ │ Example 1 │ │ An SFM is requested to move 20 DS1s, with subtending │ VG channels, to a DS3 facility (where the DS3 end of │ the channel is moving to a new customer premises │ location). The resulting SFM charge will be 20 DS1 to │ DS3 SFM charges with no SFM charges for the subtending │ VG channels. │ │ Example 2 │ │ An SFM is requested to move a DS3, with subtending DS1 │ channels, to another DS3 facility (where there is no │ change in the customer premises location on the DS3 │ facility end of the circuit). The resulting SFM │ charge will be a DS3 to DS3 SFM with no SFM charges │ for the subtending DS1 channels. │ │ Example 3 │ │ An SFM is requested to move 6 DS1s, with subtending VG │ channels, previously riding one DS3 facility to │ another DS3 facility. The resulting SFM charge would be (6) DS1 to DS3 SFMs with no SFM charges for the subtending VG channels.

SFMs may be performed at the following service levels:

- Voice Grade to 1.544 High Capacity (DS1) - DS1 to DS1 - DS1 to MegaLink Custom (DS3) - DS3 to DS3

For SFMs involving a DS3 facility to a DS3 facility, the interfaces at the customer's premises must be the same type (i.e., electrical or optical).

(This page filed under Transmittal No. 2605 )

Issued: January 10, 1997 Effective: February 24, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-172 Cancels 4th Revised Page 6-172

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.10 Moves (Cont'd)

(A) Service Facility Move (SFM) (Cont'd)

SFMs may be requested on Entrance Facilities and Direct- Trunked Transport facilities (between the serving wire center and the access tandem) and may include the move of analog to digital facilities or digital to digital facilities. In addition, an SFM may include services moving from:

- a Switched Transport facility to another Switched Transport facility (i.e., switched to switched) - a Switched Transport facility to a Special Access High Capacity or MegaLink Custom facility (i.e., switched to shared use) - a Special Access or MegaLink Custom facility to a Switched Transport facility (i.e., special to shared use).

For switched to switched SFMs and switched to shared use SFMs, nonrecurring charges will apply as set forth in 6.9.2(F) following. For special to shared use SFMs, nonrecurring charges will apply as set forth in 7.2.7 (Moves) or 20.4.2 (Nonrecurring Charges for Moves).

The following diagrams show four examples of SFMs.

Example 1: SFM - Entrance Facility (same premises)

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-173 Cancels 1st Revised Page 6-173

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.10 Moves (Cont'd)

(A) Service Facility Move (SFM) (Cont'd)

Example 2: SFM - Entrance Facility (different premises)

Material previously appearing on this page now appears on 4th Revised Page 6- 172.

(This page filed under Transmittal No. 2588 )

Issued: November 13, 1996 Effective: December 28, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-173.1 Cancels 1st Revised Page 6-173.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.10 Moves (Cont'd)

(A) Service Facility Move (SFM) (Cont'd)

Example 3: SFM - Direct-Trunked Transport Facility (same customer premises)

Before SFM

SWC Access Tandem

VoiceGrade

CUSTOMER PREMISES

MUX VG

DS1 (With spare capacity available)

After SFM SWC Access Tandem

(Vacated facility)

CUSTOMER PREMISES

MUX VG *

*DS1 Multiplexed to Voice Grade

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal’s original effective date, in the event the Commission or a court subsequently authorized SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-173.2 Cancels 1st Revised Page 6-173.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.10 Moves (Cont'd)

(A) Service Facility Move (SFM) (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ (D)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 2705 )

Issued: June 16, 1998 Effective: July 1, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-173.3 Cancels Original Page 6-173.3

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.10 Moves (Cont'd)

(A) Service Facility Move (SFM) (Cont'd) (T) (T)

When a customer requests an SFM of a Switched Transport (T) Service, the nonrecurring charge will apply as follows:

- For a Voice Grade facility moved to a DS1 facility, the nonrecurring charge will apply on a first and additional Voice Grade basis. If a customer requests an SFM of multiple Voice Grades on the same access (T) order, the first Voice Grade is assessed the "first" charge and each additional Voice Grade is assessed the "additional" charge.

- For a DS1 facility moved to a DS1 facility, the nonrecurring charge will apply on a first and additional DS1 basis. If a customer requests an SFM (T) of multiple DS1s on the same access order, the first DS1 is assessed the "first" charge and each additional DS1 is assessed the "additional" charge.

(This page filed under Transmittal No. 2588 )

Issued: November 13, 1996 Effective: December 28, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-173.4 Cancels 2nd Revised Page 6-173.4

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.10 Moves (Cont'd)

(A) Service Facility Move (SFM) (Cont'd) (T) (T)

- For a DS1 facility moved to a DS3 facility, the nonrecurring charge will apply on a first and additional DS1 basis. If a customer requests an SFM (T) of multiple DS1s on the same access order, the first DS1 is assessed the "first" charge and each additional DS1 is assessed the "additional" charge.

- For a DS3 facility moved to a DS3 facility, the nonrecurring charge will apply on a first and additional DS3 basis. If a customer requests an SFM (T) of multiple DS3s on the same access order, the first DS3 is assessed the "first" charge and each additional DS3 is assessed the "additional" charge.

When an SFM is requested between facilities of the same connection type, the nonrecurring charges to move the Entrance Facility will also include the SFM charges for any interconnecting interoffice facility of the same connection type.

There will be no change in minimum period requirements.

(This page filed under Transmittal No. 2588 )

Issued: November 13, 1996 Effective: December 28, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-174 Cancels 2nd Revised Page 6-174

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.10 Moves (Cont'd)

(B) Moves of the Point of Termination Within the Same Customer Premises

A customer initiated move of a Point of Termination to a new location within the same customer premises will be treated as an extension of access service facilities. Extension of access service facilities will be provided, at the customer's request, on a time sensitive charge basis. The "Other Labor" rates which apply are specified in 13.4 (Rates and Charges). There will be no change in minimum period requirements.

(C) Moves of Customer Premises

A customer initiated move of customer premises will be treated as a discontinuance and start of service, with exception as stated below, and all associated nonrecurring charges will apply. New minimum period requirements will be established for the new service. The customer will remain responsible for satisfying all outstanding minimum period charges for the discontinued service.

If the move of the customer's premises is as a result of a SFM (Service Facility Move), according to Section (T) 6.8.10(A), and the facility to the new premises is existing, then no additional nonrecurring charges will apply for that end of the channel or circuit. Only the SFM charge will be applicable for such moves.

(This page filed under Transmittal No. 3393 )

Issued: August 11, 2014 Effective: August 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-175 Cancels Original Page 6-175

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.11 Application of Rates for Extension Service

FGA and BSA-A Switched Access Service are available with extensions, i.e., additional terminations of the service at different building(s) in the same or a different LATA, as described below.

(A) FGA and BSA-A Extensions Within the LATA

Such extensions are provided and charged for under the Telephone Company's local and general exchange service tariffs.

(B) FGA and BSA-A Extensions in Different LATAs

Such extensions are provided and charged for as Special Access Service. The rate elements which apply are: a Voice Grade Channel Termination, Channel Mileage (if applicable), and Signaling Capability (if applicable). All appropriate monthly rates and nonrecurring charges will apply as specified in Section 7 (Special Access Service).

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-176 Cancels 5th Revised Page 6-176

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.12 Shared Use

Shared use is the provision of Switched Access and Special Access services over the same transmission path through the use of a common interface. The following Switched Access and Special Access Services are available for providing shared use facilities:

- Switched Access Services (DS1- and DS3-level Switched Access) - Special Access High Capacity Service - Self-Healing Transport Network (STN) - MegaLink Custom Service - Common Channel Signaling/Signaling System 7 (CCS/SS7) Interconnection Service - (1) (D) - (1) (D)

Regulations for shared use facilities are set forth in 6.8.12 (Shared Use), 7.2 (Rate Regulations), 19.3 (Rate Regulations), 20.4 (Rate Regulations) and 23.3 (Rate Regulations). (1) Ordering (D) provisions for shared use facilities are set forth in 5.2.5 (Shared Use).

Existing Switched Access transport facilities can be converted to shared use facilities by activating a portion of available capacity for Special Access. Services provided over a shared use facility are ordered, provided and rated either as Switched Access (i.e., Entrance Facility, Direct-Trunked Transport, Tandem-Switched Transport and Multiplexing) or as Special Access (i.e., Channel Termination, Channel Mileage and Multiplexing) as set forth following:

(A) On shared use facilities, the customer for the Switched Access Service may be different from the customer for the Special Access Service. When the Switched Access Customer is not the same as the Special Access Customer, all Special Access charges and Switched Transport charges (including Switched Transport features charges) will be billed to the customer who initially ordered the facility. All other Switched Access charges will be separately billed to the customer who ordered the Switched Access Service.

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-176.1 Cancels 2nd Revised Page 6-176.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.12 Shared Use (Cont'd)

(B) When an existing Switched Access transport facility is converted to a shared use facility by using an available portion of the capacity for Special Access Service, the applicable nonrecurring charges (including the Access Order Charge) will be the nonrecurring charges associated with the Special Access service being ordered.

(C) The customer must place an order for each individual Switched or Special Access service utilizing the shared use facility and must also specify the channel assignment for each service.

(D) All channels within a shared use facility will be rated and billed as set forth in (1) through (6) following: (T)

(1) When a DS1 facility is ordered and provisioned as Switched Access, all channels, including spares, will be rated and billed as Switched Access until such time as the DS1 facility becomes shared use.

(2) When a DS1 facility is ordered and provisioned as a Special Access High Capacity Service, all channels, including spares, will be rated and billed as Special Access.

(3) Once a DS1 facility, ordered as either Switched or Special Access, becomes shared use, all spare channels on the DS1 facility will be rated and billed as Special Access.

(4) On a DS3 shared use facility, ordered either as Switched Access or Megalink Custom Service, the Switched Access channels on the DS3 facility must equal the cumulative value of the channels (both active and spare) counted as Switched Access on each DS1 facility.

For example, a Switched Access DS1 facility, which contains 20 active and 4 spare channels, is activated on a shared use DS3 facility. The DS1 facility is considered pure switched access and the shared use DS3 facility is prorated by 24 switched channels, i.e., 24/672.

(This page filed under Transmittal No. 2855 )

Issued: January 16, 2001 Effective: January 31, 2001

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-176.2 Cancels 7th Revised Page 6-176.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.12 Shared Use (Cont'd)

(D) (Cont'd)

(4) (Cont'd)

Subsequently, 6 of the switched channels from the Switched Access DS1 facility are disconnected and become spare. Since the DS1 facility is still considered pure switched, the shared use DS3 facility will continue to be prorated by 24 switched channels, i.e., 24/672.

If, at a later date, the Switched Access DS1 facility becomes shared use by the addition of 6 Special Access channels, the DS1 spare channels will then default to Special Access. The DS3 facility will be prorated by 14/672 to reflect the new switched channel value on the shared use DS1, i.e., 14 active switched, 6 active special and 4 spare.

If multiplexing were associated with the shared use facility, the monthly recurring rate for the multiplexer would be prorated in the same manner as the Entrance Facility and Channel Termination.

(5) Channels being used in conjunction with CCS/SS7 Interconnection Service are included in the channel counts for Switched Access.

(6) While Shared Use of SONET facilities (1) for Switched (D) Access Transport is permitted, the SONET Special Access facilities continue to be rated as Special Access.

(E) Customers requesting SFM of shared use facilities will be assessed nonrecurring charges as specified in 6.8.10 (Moves), 7.2.7 (Moves), 19.3.7 (Moves), 20.4.12 (Moves) and 23.3.6 (Moves) with the nonrecurring charges being prorated as set forth in (D)(1) through (D)(5) preceding.

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-177 Cancels Original Page 6-177

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd) (T)

6.8.13 Application of Rates for FGA and BSA-A to Directory Assistance (T) Service

Switched Transport rates will not apply for FGA and BSA-A Switched Access Service calls to Directory Assistance Service (411 and 555-1212, whichever is available). Instead, FGA and BSA-A calls to this service are subject to the Directory Transport rates set forth in 9.5 (Rates and Charges).

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-178 Cancels 1st Revised Page 6-178

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.14 Non-Access Charges

Rates and charges for services other than Switched Access Service, e.g., a customer's interLATA toll message service, may also be applicable when Switched Access Service is used in conjunction with these other services. Additional non-access charges will be billed on a separate account for:

- an operator surcharge, as set forth in the local exchange tariffs, for local operator assistance (0- and 0+) calls utilizing FGA or BSA-A;

- calls to certain community information services for which rates are applicable under Telephone Company exchange service tariffs, e.g., 976 (DIAL-IT) network services;

- calls from a FGA or BSA-A line or FGB, FGD, BSA-B, or BSA-D(D) trunk to another customer's service in accordance with that customer's applicable service rates when the Telephone Company performs the billing function for that customer;

- Custom Calling features utilized in conjunction with FGA or BSA-A;

- Billed Number Screening utilized in conjunction with FGA, FGB, BSA-A or BSA-B;

- intraLATA extensions utilized in conjunction with FGA or BSA-A;

- Remote Call Forwarding (Telebranch) utilized in conjunction with FGA or BSA-A.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-178.1 Cancels 2nd Revised Page 6-178.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-178.2 Cancels Original Page 6-178.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-178.3 Cancels Original Page 6-178.3

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-178.4 Cancels Original Page 6-178.4

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-178.5 Cancels Original Page 6-178.5

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-178.6 Cancels Original Page 6-178.6

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-178.7 Cancels Original Page 6-178.7

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-178.8 Cancels Original Page 6-178.8

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-178.9 Cancels 2nd Revised Page 6-178.9

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

(D) │ │ │ │ │ │ │ │

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-178.10 Cancels Original Page 6-178.10

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.8 Rate Regulations (Cont'd)

6.8.15 Zone Pricing

(A) General

Switched Transport provided at the DS1 level and DS3 level, including associated features and functions, is subject to zone pricing. Zone pricing is the application of rates and charges on a zoned or a nonzoned basis. Zoned rates and charges apply when these services, features and functions are provided in a pricing zone. Nonzoned rates and charges apply when these services, features and functions are provided outside of a pricing zone. Pricing zones are established by wire center as specified in the National Exchange Carrier Association, Inc. Tariff F.C.C. No. 4.

(B) Multiple Pricing Zones

When zoned rates and charges apply and the Switched Transport is provided between multiple pricing zones, the rates and charges associated with the higher zone will apply. Features and functions provided on such interzone links, however, are priced according to the zone of the office in which they are provided.

For example, if Direct-Trunked Transport is provided from a serving wire center in pricing zone 1 to an intermediate hub in pricing zone 2 where it is multiplexed to provide transport to two different end offices, one located in a zone 1 and one located in a zone 3, such transport would be priced as follows: zone 2 rates would apply to the interoffice link between the serving wire center and the intermediate hub the interoffice link, between the intermediate hub and the end office in zone 1, and to the multiplexing provided in the intermediate hub office (because that office is in zone 2); zone 3 rates would apply to the interoffice link between the intermediate hub and the end office in zone 3.

(C) Jointly Provided Service

When Switched Transport is jointly provided as set forth in 2.6 (Jointly Provided Access Service), zone pricing will apply only to that portion of the service provided and billed by the Telephone Company.

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 47th Revised Page 6-179 Cancels 46th Revised Page 6-179

6. Switched Access Service (Cont'd)

6.9 Rates and Charges

For the rates and charges contained in this section, zoned rates are applicable to Arkansas, Missouri, Oklahoma and Texas and nonzoned rates are applicable to Kansas. All other rates and charges are applicable to Arkansas, Kansas, Missouri, Oklahoma and Texas. Applicable FIDs and USOCs are included where appropriate.

6.9.1 Reserved for Future Use (T)

6.9.2 Switched Transport

(A) Entrance Facility

(1) Voice Grade (per channel) USOC Rate per Month 2-wire EF2A2 $ 7.10(R)

4-wire EF2A4 $ 16.50(R)

Nonrecurring Charge 2-wire (per channel) First Channel $ 166.00 Additional Channel, each $ 116.00

4-wire (per channel) First Channel $ 201.00 Additional Channel, each $ 149.00

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 20th Revised Page 6-179.1 Cancels 19th Revised Page 6-179.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(A) Entrance Facility (Cont'd)

(2) Reserved for Future Use (T)

(D)

(D)

(3) DS1 USOC Rate per Month (per DS1) EF2BX Nonzoned $ 98.64(R)

Zone 1 - AR $ 93.29(R) Zone 2 - AR $ 98.64(R) Zone 3 - AR $ 105.18(R)

Zone 1 - MO $ 93.28(R) Zone 2 - MO $ 98.64(R) Zone 3 - MO $ 105.18(R)

Zone 1 - OK $ 93.28(R) Zone 2 - OK $ 98.64(R) Zone 3 - OK $ 105.18(R)

Zone 1 - TX $ 93.28(R) Zone 2 - TX $ 98.64(R) Zone 3 - TX $ 105.18(R)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 6-179.2 Cancels 9th Revised Page 6-179.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(A) Entrance Facility (Cont'd)

(3) DS1 (Cont'd)

Nonrecurring Charge Per DS1 First DS1 Nonzoned $ 600.00

Zone 1 - AR $ 600.00 Zone 2 - AR $ 600.00 Zone 3 - AR $ 600.00

Zone 1 - MO $ 600.00 Zone 2 - MO $ 600.00 Zone 3 - MO $ 600.00

Zone 1 - OK $ 600.00 Zone 2 – OK $ 600.00 Zone 3 - OK $ 600.00

Zone 1 - TX $ 600.00 Zone 2 - TX $ 600.00 Zone 3 - TX $ 600.00

Additional DS1, each Nonzoned $ 456.00

Zone 1 - AR $ 456.00 Zone 2 - AR $ 456.00 Zone 3 - AR $ 456.00

Zone 1 - MO $ 456.00 Zone 2 - MO $ 456.00 Zone 3 - MO $ 456.40(I)

Zone 1 - OK $ 456.00 Zone 2 - OK $ 456.00 Zone 3 - OK $ 456.40(I)

Zone 1 - TX $ 456.00 Zone 2 - TX $ 456.00 Zone 3 - TX $ 456.40(I) Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Ameritech to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 2952 )

Issued: June 16, 2003 Effective: July 1, 2003

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 16th Revised Page 6-179.3 Cancels 15th Revised Page 6-179.3

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(A) Entrance Facility (Cont'd)

(4) DS3 USOC Rate per Month (per DS3)

Optical EF2DX Nonzoned $1,135.00(R)

Zone 1 - AR $1,112.00(R) Zone 2 - AR $1,136.40(R) Zone 3 - AR $1,168.00(R)

Zone 1 - MO $1,112.00(R) Zone 2 - MO $1,136.40(R) Zone 3 - MO $1,168.00(R)

Zone 1 - OK $1,112.00(R) Zone 2 - OK $1,136.40(R) Zone 3 - OK $1,168.00(R)

Zone 1 - TX $1,112.00(R) Zone 2 - TX $1,136.40(R) Zone 3 - TX $1,168.00(R)

Electrical EF2CX Nonzoned $1,135.00(R)

Zone 1 - AR $1,112.00(R) Zone 2 - AR $1,136.40(R) Zone 3 – AR $1,168.00(R)

Zone 1 - MO $1,112.00(R) Zone 2 - MO $1,136.40(R) Zone 3 - MO $1,168.00(R)

Zone 1 - OK $1,112.00(R) Zone 2 - OK $1,136.40(R) Zone 3 - OK $1,168.00(R)

Zone 1 - TX $1,112.00(R) Zone 2 - TX $1,136.40(R) Zone 3 - TX $1,168.00(R)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 2901 )

Issued: June 17, 2002 Effective: July 2, 2002

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 6-179.4 Cancels 8th Revised Page 6-179.4

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(A) Entrance Facility (Cont'd)

(4) DS3 (Cont'd) (per DS3)

Nonrecurring Charge

Per DS3 First DS3 Nonzoned $ 605.00(R)

Zone 1 - AR $ 605.00(R) Zone 2 - AR $ 605.00(R) Zone 3 - AR $ 605.00(R)

Zone 1 - MO $ 605.00(R) Zone 2 - MO $ 605.00(R) Zone 3 - MO $ 605.00(R)

Zone 1 - OK $ 605.00(R) Zone 2 - OK $ 605.00(R) Zone 3 - OK $ 605.00(R)

Zone 1 - TX $ 605.00(R) Zone 2 - TX $ 605.00(R) Zone 3 - TX $ 605.00(R)

Additional DS3, each Nonzoned $ 496.00

Zone 1 - AR $ 496.00 Zone 2 - AR $ 496.00 Zone 3 - AR $ 496.00

Zone 1 - MO $ 496.00 Zone 2 - MO $ 496.00 Zone 3 - MO $ 496.00

Zone 1 - OK $ 496.00 Zone 2 - OK $ 496.00 Zone 3 - OK $ 496.00

Zone 1 - TX $ 496.00 Zone 2 - TX $ 496.00 Zone 3 - TX $ 496.00

(This page filed under Transmittal No. 2640)

Issued: June 16, 1997 Effective: July 1, 1997

One Bell Center, St. Louis, Missouri 63101

(This page filed under Transmittal No. 2640 )

Issued: June 16, 1997 Effective: July 1, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 17th Revised Page 6-179.5 Cancels 16th Revised Page 6-179.5

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(B) Direct-Trunked Transport

(1) Voice Grade (per channel) USOC Rate per Month

Fixed 1YTEX 0 miles $ 0.00 Over 0 miles $ 4.38

Per Mile 0 miles $ 0.00 Over 0 miles $ 0.28

Nonrecurring Charge

First Channel $181.00 Additional Channel, each $157.00

(2) Reserved for Future Use (T)

(D)

(D)

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 6-179.6 Cancels 12th Revised Page 6-179.6

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(B) Direct-Trunked Transport (Cont'd)

(3) DS1 (per DS1)

USOC Rate per Month

Fixed 0 miles 1YTCX Nonzoned $ 4.80(I)

Zone 1 - AR $ 4.80(I) Zone 2 - AR $ 4.80(I) Zone 3 - AR $ 4.80(I)

Zone 1 - MO $ 4.80(I) Zone 2 - MO $ 4.80)I) Zone 3 - MO $ 4.80(I)

Zone 1 - OK $ 4.80(I) Zone 2 - OK $ 4.80(I) Zone 3 - OK $ 4.80(I)

Zone 1 - TX $ 4.80(I) Zone 2 - TX $ 4.80(I) Zone 3 - TX $ 4.80(I)

Over 0 miles Nonzoned $ 28.84

Zone 1 - AR $ 28.84 Zone 2 - AR $ 28.84 Zone 3 - AR $ 28.84

Zone 1 - MO $ 28.84 Zone 2 - MO $ 28.84 Zone 3 - MO $ 28.84

Zone 1 - OK $ 28.84 Zone 2 - OK $ 28.84 Zone 3 - OK $ 28.84

Zone 1 - TX $ 28.84 Zone 2 - TX $ 28.84 Zone 3 - TX $ 28.84

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 3212 )

Issued: June 15, 2007 Effective: June 30, 2007

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 19th Revised Page 6-179.7 Cancels 18th Revised Page 6-179.7

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(B) Direct-Trunked Transport (Cont'd)

(3) DS1 (Cont'd) (per DS1)

USOC Rate per Month

Per Mile 0 miles Nonzoned $ 0.00

Zone 1 - AR $ 0.00 Zone 2 - AR $ 0.00 Zone 3 - AR $ 0.00

Zone 1 - MO $ 0.00 Zone 2 - MO $ 0.00 Zone 3 - MO $ 0.00

Zone 1 - OK $ 0.00 Zone 2 - OK $ 0.00 Zone 3 - OK $ 0.00

Zone 1 - TX $ 0.00 Zone 2 - TX $ 0.00 Zone 3 - TX $ 0.00

Over 0 miles Nonzoned $ 5.79 (I)

Zone 1 - AR $ 5.79 (I) Zone 2 - AR $ 5.79 (I) Zone 3 - AR $ 5.79 (I)

Zone 1 - MO $ 5.79 (I) Zone 2 - MO $ 5.79 (I) Zone 3 - MO $ 5.79 (I)

Zone 1 - OK $ 5.79 (I) Zone 2 - OK $ 5.79 (I) Zone 3 - OK $ 5.79 (I)

Zone 1 - TX $ 5.79 (I) Zone 2 - TX $ 5.79 (I) Zone 3 - TX $ 5.79 (I)

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 3324 )

Issued: June 16, 2011 Effective: July 1, 2011

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-179.8 Cancels 1st Revised Page 6-179.8

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(B) Direct-Trunked Transport (Cont'd)

(3) DS1 (Cont'd) (M) (per DS1) │ │ Nonrecurring Charge │ │ First DS1 │ Nonzoned $408.00 │ │ Zone 1 - AR $408.00 │ Zone 2 - AR $408.00 │ Zone 3 - AR $408.00 │ │ Zone 1 - MO $408.00 │ Zone 2 - MO $408.00 │ Zone 3 - MO $408.00 (M)

Zone 1 - OK $408.00 (N) Zone 2 - OK $408.00 │ Zone 3 - OK $408.00 (N)

Zone 1 - TX $408.00 (M) Zone 2 - TX $408.00 │ Zone 3 - TX $408.00 │ │ Additional DS1, each │ Nonzoned $314.00 │ │ Zone 1 - AR $314.00 │ Zone 2 - AR $314.00 │ Zone 3 - AR $314.00 │ │ Zone 1 - MO $314.00 │ Zone 2 - MO $314.00 │ Zone 3 - MO $314.00 (M)

Zone 1 - OK $314.00 (N) Zone 2 - OK $314.00 │ Zone 3 - OK $314.00 (N)

Zone 1 - TX $314.00 Zone 2 - TX $314.00 Zone 3 - TX $314.00

Material appearing on this page formerly appeared on 8th Revised Page 6-179.7.

(This page filed under Transmittal No. 2611)

Issued: January 31, 1997 Effective: March 3, 1997

One Bell Center, St. Louis, Missouri 63101

(This page filed under Transmittal No. 2611 )

Issued: January 31, 1997 Effective: March 3, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 15th Revised Page 6-179.9 Cancels 14th Revised Page 6-179.9

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(B) Direct-Trunked Transport (Cont'd)

(4) DS3 (per DS3)

USOC Rate per Month

Fixed 1YTDX Nonzoned $440.00

Zone 1 - AR $556.00 Zone 2 - AR $490.12 Zone 3 - AR $550.00

Zone 1 - MO $556.00 Zone 2 - MO $490.12 Zone 3 - MO $550.00

Zone 1 - OK $556.00 Zone 2 - OK $490.12 Zone 3 - OK $550.00

Zone 1 - TX $556.00 Zone 2 - TX $556.00 Zone 3 - TX $550.00

Per Mile Nonzoned $ 41.25(I)

Zone 1 - AR $ 38.21(I) Zone 2 - AR $ 43.24(I) Zone 3 - AR $ 46.55(I)

Zone 1 - MO $ 38.21(I) Zone 2 - MO $ 43.24(I) Zone 3 - MO $ 46.55(I)

Zone 1 - OK $ 38.21(I) Zone 2 - OK $ 43.24(I) Zone 3 - OK $ 46.55(I)

Zone 1 - TX $ 38.21(I) Zone 2 - TX $ 43.24(I) Zone 3 - TX $ 46.55(I)

(This page filed under Transmittal No. 3212 )

Issued: June 15, 2007 Effective: June 30, 2007

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-179.10 Cancels Original Page 6-179.10

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(B) Direct-Trunked Transport (Cont'd) (M) │ (4) DS3 (Cont'd) │ (per DS3) │ │ Nonrecurring Charge │ │ First DS3 │ Nonzoned $473.00 │ │ Zone 1 - AR $473.00 │ Zone 2 - AR $473.00 │ Zone 3 - AR $473.00 │ │ Zone 1 - MO $473.00 │ Zone 2 - MO $473.00 │ Zone 3 - MO $473.00 (M)

Zone 1 - OK $473.00 (N) Zone 2 - OK $473.00 │ Zone 3 - OK $473.00 (N)

Zone 1 - TX $473.00 (M) Zone 2 - TX $473.00 │ Zone 3 - TX $473.00 │ │ Additional DS3, each │ Nonzoned $341.00 │ │ Zone 1 - AR $341.00 │ Zone 2 - AR $341.00 │ Zone 3 - AR $341.00 │ │ Zone 1 - MO $341.00 │ Zone 2 - MO $341.00 │ Zone 3 - MO $341.00 (M)

Zone 1 - OK $341.00 (N) Zone 2 - OK $341.00 │ Zone 3 - OK $341.00 (N)

Zone 1 - TX $341.00 Zone 2 - TX $341.00 Zone 3 - TX $341.00

Material appearing on this page formerly appeared on Original Page 6-179.9.

(This page filed under Transmittal No. 2611)

Issued: January 31, 1997 Effective: March 3, 1997

One Bell Center, St. Louis, Missouri 63101

(This page filed under Transmittal No. 2611 )

Issued: January 31, 1997 Effective: March 3, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 27th Revised Page 6-179.11 Cancels 26th Revised Page 6-179.11

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(C) Tandem Switched Transport

Originating Terminating Tandem-Switched Transmission/ Common (1) Transport Rate per Access Minute $ 0.000053 $ 0.000053 Rate per Access Minute per Mile $ 0.000003 $ 0.000003

Host/Remote (2) Transmission Rate per Access Minute $ 0.000173 $ 0.000173 Rate per Access Minute per Mile $ 0.000014 $ 0.000014

(3) Tandem Switching Rate per Access Minute $ 0.000288 $ 0.000288

Tandem End Office (4) Multiplexing Rate per Access Minute $ 0.000047 $ 0.000047

Originating Terminating(D) Originating Monthly Terminating Monthly USOC Rate USOC Rate (5) Dedicated Tandem (D) Trunk Port 3PO3X $1.34 3PT3X $1.34 (D)

(6) Nonrecurring Charge per Voice Grade NRBLW First Voice Grade Channel $181.00 Add'l Voice Grade Channel, each $157.00

per DS1 NRBLX First DS1 $408.00 Additional DS1, each $314.00

per DS3 NRBLY First DS3 $473.00 Additional DS3, each $341.00 Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 3393 )

Issued: August 11, 2014 Effective: August 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-179.12 Cancels 1st Revised Page 6-179.12

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(D) Feature Group and BSA Installation (TPP++)

Nonrecurring Charge

FGA and BSA-A, first line Nonzoned $ 33.25

Zone 1 - AR $ 33.25 Zone 2 - AR $ 33.25 Zone 3 - AR $ 33.25

Zone 1 - MO $ 33.25 Zone 2 - MO $ 33.25 Zone 3 - MO $ 33.25

Zone 1 - OK $ 33.25 Zone 2 - OK $ 33.25 Zone 3 - OK $ 33.25

Zone 1 - TX $ 33.25 Zone 2 - TX $ 33.25 Zone 3 - TX $ 33.25

FGA and BSA-A, add'l line Nonzoned $ 28.00(R)

Zone 1 - AR $ 28.50 Zone 2 - AR $ 28.50 Zone 3 - AR $ 28.50

Zone 1 - MO $ 28.50 Zone 2 - MO $ 28.50 Zone 3 - MO $ 28.50

Zone 1 - OK $ 28.50 Zone 2 - OK $ 28.50 Zone 3 - OK $ 28.50

Zone 1 - TX $ 28.50 Zone 2 - TX $ 28.50 Zone 3 - TX $ 28.50

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 3071 )

Issued: June 16, 2005 Effective: July 1, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-179.13 Cancels 1st Revised Page 6-179.13

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(D) Feature Group and BSA Installation (TPP++) (Cont'd)

Nonrecurring Charge

FGB and BSA-B First Trunk Nonzoned $ 33.25

Zone 1 - AR $ 33.25 Zone 2 - AR $ 33.25 Zone 3 - AR $ 33.25

Zone 1 - MO $ 33.25 Zone 2 - MO $ 33.25 Zone 3 - MO $ 33.25

Zone 1 - OK $ 33.25 Zone 2 - OK $ 33.25 Zone 3 - OK $ 33.25

Zone 1 - TX $ 33.25 Zone 2 - TX $ 33.25 Zone 3 - TX $ 33.25

FGB and BSA-B Additional Trunk, each Nonzoned $ 28.00(R)

Zone 1 - AR $ 28.50 Zone 2 - AR $ 28.50 Zone 3 - AR $ 28.50

Zone 1 - MO $ 28.50 Zone 2 - MO $ 28.50 Zone 3 - MO $ 28.50

Zone 1 - OK $ 28.50 Zone 2 - OK $ 28.50 Zone 3 - OK $ 28.50

Zone 1 - TX $ 28.50 Zone 2 - TX $ 28.50 Zone 3 - TX $ 28.50

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 3071 )

Issued: June 16, 2005 Effective: July 1, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-179.14 Cancels 2nd Revised Page 6-179.14

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(D) Feature Group and BSA Installation (TPP++) (Cont'd)

(D)

(D)

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 6-179.15 Cancels 1st Revised Page 6-179.15

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(D) Feature Group and BSA Installation (TPP++) (Cont'd)

Nonrecurring Charge

FGD and BSA-D First Trunk Nonzoned $ 33.25

Zone 1 - AR $ 33.25 Zone 2 - AR $ 33.25 Zone 3 - AR $ 33.25

Zone 1 - MO $ 33.25 Zone 2 - MO $ 33.25 Zone 3 - MO $ 33.25

Zone 1 - OK $ 33.25 Zone 2 - OK $ 33.25 Zone 3 - OK $ 33.25

Zone 1 - TX $ 33.25 Zone 2 - TX $ 33.25 Zone 3 - TX $ 33.25

FGD and BSA-D Additional Trunk, each Nonzoned $ 28.00(R)

Zone 1 - AR $ 28.50 Zone 2 - AR $ 28.50 Zone 3 - AR $ 28.50

Zone 1 - MO $ 28.50 Zone 2 - MO $ 28.50 Zone 3 - MO $ 28.50

Zone 1 - OK $ 28.50 Zone 2 - OK $ 28.50 Zone 3 - OK $ 28.50

Zone 1 - TX $ 28.50 Zone 2 - TX $ 28.50 Zone 3 - TX $ 28.50

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 3071 )

Issued: June 16, 2005 Effective: July 1, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-179.16

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd) (M) (E) Trunk Conversion Charge │ │ A nonrecurring charge will apply when a customer requests a │ conversion of a FGD or BSA-D trunk from the following │ arrangements: │ │ (1) SS7 Signaling │ │ - multifrequency address (MF) signaling to SS7 │ signaling. │ │ - SS7 signaling to MF signaling. │ │ Additional │ USOC First Trunk Trunk │ │ FGD, BSA-D NRBGL $ 0.00 $ 0.00 │ │ (2) 64 CCC │ │ - MF signaling to SS7 signaling with 64 CCC. │ │ - SS7 signaling to SS7 signaling with 64 CCC. │ │ Additional │ USOC First Trunk Trunk │ │ FGD, BSA-D NRBGM $ 0.00 $ 0.00 │ │ (3) Multiple 64 CCC │ │ - MF signaling to SS7 signaling with 64 CCC and │ Multiple 64 CCC. │ │ - SS7 signaling to SS7 signaling with 64 CCC and │ Multiple 64 CCC. │ │ - SS7 signaling with 64 CCC to SS7 signaling with │ 64 CCC and Multiple 64 CCC. │ │ - Subsequent rearrangement of Multiple 64 CCC. │ │ Additional USOC First Trunk Trunk

FGD, BSA-D NRBGN $ 0.00 $ 0.00

Material appearing on this page formerly appeared on Original Page 6-179.15.

(This page filed under Transmittal No. 2611 )

Issued: January 31, 1997 Effective: March 3, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 6-180 Cancels 8th Revised Page 6-180

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(F) SFM Nonrecurring Charge

(1) Entrance Facility SFM

(a) Voice Frequency facility moved to DS1 facility (NRBRB) First channel $100.00 Additional channel, each $ 55.00

(b) DS1 facility moved to a DS1 facility (NRBRC) First DS1 Nonzoned $125.00

Zone 1 - AR $125.00 Zone 2 - AR $125.00 Zone 3 - AR $125.00

Zone 1 - MO $125.00 Zone 2 - MO $125.00 Zone 3 - MO $125.00

Zone 1 - OK $125.00 (N) Zone 2 - OK $125.00 │ Zone 3 - OK $125.00 (N)

Zone 1 - TX $125.00 Zone 2 - TX $125.00 Zone 3 - TX $125.00

Additional DS1, each Nonzoned $ 90.00

Zone 1 - AR $ 90.00 Zone 2 - AR $ 90.00 Zone 3 - AR $ 90.00

Zone 1 - MO $ 90.00 Zone 2 - MO $ 90.00 Zone 3 - MO $ 90.00

Zone 1 - OK $ 90.00 Zone 2 - OK $ 90.00 Zone 3 - OK $ 90.00

Zone 1 - TX $ 90.00 Zone 2 - TX $ 90.00 Zone 3 - TX $ 90.00

(This page filed under Transmittal No. 2611)

Issued: January 31, 1997 Effective: March 3, 1997

One Bell Center, St. Louis, Missouri 63101

(This page filed under Transmittal No. 2611 )

Issued: January 31, 1997 Effective: March 3, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-180.1 Cancels 4th Revised Page 6-180.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(F) SFM (Cont'd) Nonrecurring Charge

(1) Entrance Facility SFM (Cont'd)

(c) DS1 facility moved to a DS3 facility (NRBRD) First DS1 Nonzoned $150.00

Zone 1 - AR $150.00 Zone 2 - AR $150.00 Zone 3 - AR $150.00

Zone 1 - MO $150.00 Zone 2 - MO $150.00 Zone 3 - MO $150.00

Zone 1 - OK $150.00 (N) Zone 2 - OK $150.00 │ Zone 3 - OK $150.00 (N)

Zone 1 - TX $150.00 Zone 2 - TX $150.00 Zone 3 - TX $150.00

Additional DS1, each Nonzoned $120.00

Zone 1 - AR $120.00 Zone 2 - AR $120.00 Zone 3 - AR $120.00

Zone 1 - MO $120.00 Zone 2 - MO $120.00 Zone 3 - MO $120.00

Zone 1 - OK $120.00 Zone 2 - OK $120.00 Zone 3 - OK $120.00

Zone 1 - TX $120.00 Zone 2 - TX $120.00 Zone 3 - TX $120.00

(This page filed under Transmittal No. 2611)

Issued: January 31, 1997 Effective: March 3, 1997

One Bell Center, St. Louis, Missouri 63101

(This page filed under Transmittal No. 2611 )

Issued: January 31, 1997 Effective: March 3, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-180.2 Cancels 2nd Revised Page 6-180.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(F) SFM (Cont'd) Nonrecurring Charge

(1) Entrance Facility SFM (Cont'd)

(d) DS3 facility moved to a DS3 facility (NRBRG) First DS3 Nonzoned $135.00

Zone 1 - AR $135.00 Zone 2 - AR $135.00 Zone 3 - AR $135.00

Zone 1 - MO $135.00 Zone 2 - MO $135.00 Zone 3 - MO $135.00

Zone 1 - OK $135.00 (N) Zone 2 - OK $135.00 │ Zone 3 - OK $135.00 (N)

Zone 1 - TX $135.00 Zone 2 - TX $135.00 Zone 3 - TX $135.00

Additional DS3, each Nonzoned $104.00

Zone 1 - AR $104.00 Zone 2 - AR $104.00 Zone 3 - AR $104.00

Zone 1 - MO $104.00 Zone 2 - MO $104.00 Zone 3 - MO $104.00

Zone 1 - OK $104.00 Zone 2 - OK $104.00 Zone 3 - OK $104.00

Zone 1 - TX $104.00 Zone 2 - TX $104.00 Zone 3 - TX $104.00

(This page filed under Transmittal No. 2611)

Issued: January 31, 1997 Effective: March 3, 1997

One Bell Center, St. Louis, Missouri 63101

(This page filed under Transmittal No. 2611 )

Issued: January 31, 1997 Effective: March 3, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-180.3 Cancels 2nd Revised Page 6-180.3

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(F) SFM (Cont'd) Nonrecurring Charge

(2) Direct-Trunked Transport SFM

(a) Voice Frequency facility moved to DS1 facility (NRBRQ) First channel $100.00 Additional channel, each $ 55.00

(b) DS1 facility moved to a DS1 facility (NRBRR) First DS1 Nonzoned $125.00

Zone 1 - AR $125.00 Zone 2 - AR $125.00 Zone 3 - AR $125.00

Zone 1 - MO $125.00 Zone 2 - MO $125.00 Zone 3 - MO $125.00

Zone 1 - OK $125.00 (N) Zone 2 - OK $125.00 │ Zone 3 - OK $125.00 (N)

Zone 1 - TX $125.00 Zone 2 - TX $125.00 Zone 3 - TX $125.00

Additional DS1, each Nonzoned $ 90.00

Zone 1 - AR $ 90.00 Zone 2 - AR $ 90.00 Zone 3 - AR $ 90.00

Zone 1 - MO $ 90.00 Zone 2 - MO $ 90.00 Zone 3 - MO $ 90.00

Zone 1 - OK $ 90.00 Zone 2 - OK $ 90.00 Zone 3 - OK $ 90.00

Zone 1 - TX $ 90.00 Zone 2 - TX $ 90.00 Zone 3 - TX $ 90.00

(This page filed under Transmittal No. 2611)

Issued: January 31, 1997 Effective: March 3, 1997

One Bell Center, St. Louis, Missouri 63101

(This page filed under Transmittal No. 2611 )

Issued: January 31, 1997 Effective: March 3, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-180.4 Cancels Original Page 6-180.4

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(F) SFM (Cont'd) Nonrecurring Charge

(2) Direct-Trunked Transport SFM (Cont'd)

(c) DS1 facility moved to a DS3 facility (NRBRS) First DS1 Nonzoned $150.00

Zone 1 - AR $150.00 Zone 2 - AR $150.00 Zone 3 - AR $150.00

Zone 1 - MO $150.00 Zone 2 - MO $150.00 Zone 3 - MO $150.00

Zone 1 - OK $150.00 (N) Zone 2 - OK $150.00 │ Zone 3 - OK $150.00 (N)

Zone 1 - TX $150.00 Zone 2 - TX $150.00 Zone 3 - TX $150.00

Additional DS1, each Nonzoned $120.00

Zone 1 - AR $120.00 Zone 2 - AR $120.00 Zone 3 - AR $120.00

Zone 1 - MO $120.00 Zone 2 - MO $120.00 Zone 3 - MO $120.00

Zone 1 - OK $120.00 Zone 2 - OK $120.00 Zone 3 - OK $120.00

Zone 1 - TX $120.00 Zone 2 - TX $120.00 Zone 3 - TX $120.00

(This page filed under Transmittal No. 2611)

Issued: January 31, 1997 Effective: March 3, 1997

One Bell Center, St. Louis, Missouri 63101

(This page filed under Transmittal No. 2611 )

Issued: January 31, 1997 Effective: March 3, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6-180.5 Cancels Original Page 6-180.5

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(F) SFM (Cont'd) Nonrecurring Charge

(2) Direct-Trunked Transport SFM (Cont'd)

(d) DS3 facility moved to a DS3 facility (NRBRY) First DS3 Nonzoned $135.00

Zone 1 - AR $135.00 Zone 2 - AR $135.00 Zone 3 - AR $135.00

Zone 1 - MO $135.00 Zone 2 - MO $135.00 Zone 3 - MO $135.00

Zone 1 - OK $135.00 (N) Zone 2 - OK $135.00 │ Zone 3 - OK $135.00 (N)

Zone 1 - TX $135.00 Zone 2 - TX $135.00 Zone 3 - TX $135.00

Additional DS3, each Nonzoned $104.00

Zone 1 - AR $104.00 Zone 2 - AR $104.00 Zone 3 - AR $104.00

Zone 1 - MO $104.00 Zone 2 - MO $104.00 Zone 3 - MO $104.00

Zone 1 - OK $104.00 Zone 2 - OK $104.00 Zone 3 - OK $104.00

Zone 1 - TX $104.00 Zone 2 - TX $104.00 Zone 3 - TX $104.00

(This page filed under Transmittal No. 2611)

Issued: January 31, 1997 Effective: March 3, 1997

One Bell Center, St. Louis, Missouri 63101

(This page filed under Transmittal No. 2611 )

Issued: January 31, 1997 Effective: March 3, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 6-180.6

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd) (M)(S) (F) SFM (Cont'd) │ Nonrecurring Charge │ │ (3) Tandem-Switched Transport SFM │ │ (a) Voice Frequency facility │ moved to DS1 facility (NRBRT) │ (S) First channel $100.00 │ (S) Additional channel, each $ 55.00 │ │ (b) DS1 facility moved to a │ DS1 facility (NRBRU) │ (S) first DS1 $125.00 │ (S) additional DS1, each $ 90.00 │ │ (c) DS1 facility moved to a │ DS3 facility (NRBRV) │ (S) first DS1 $150.00 │ (S) additional DS1, each $120.00 │ │ (d) DS3 facility moved to a DS3 facility (NRBRX) first DS3 $135.00 additional DS3, each $104.00

Reissued material is scheduled to become effective December 12, 1996.

Material appearing on this page formerly appeared on 1st Revised Page 6-180.3.

(This page filed under Transmittal No. 2600 )

Issued: December 13, 1996 Effective: January 27, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-181 Cancels 4th Revised Page 6-181

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(G) Switched Transport Features Nonrecurring Charge

(1) Supervisory Signaling

(a) DX Supervisory Signaling* (NCI ++DX+)

FGB and BSA-B, first trunk ...... $101.52 FGB and BSA-B, additional trunk .. $ 37.06

(D) (D)

FGD and BSA-D, first trunk ...... $101.52 FGD and BSA-D, additional trunk .. $ 37.06

(b) SF Supervisory Signaling** (NCI ++SF+)

FGA and BSA-A, first line ...... $ 27.14 FGA and BSA-A, additional line ... $ 11.27

FGB and BSA-B, first trunk ...... $101.52 FGB and BSA-B, additional trunk .. $ 37.06

(D) (D)

FGD and BSA-D, first trunk ...... $101.52 FGD and BSA-D, additional trunk .. $ 37.06

* Available with interface groups 1 and 2.

** Available with interface groups 2 and 6 through 9.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-182 Cancels 4th Revised Page 6-182

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(G) Switched Transport Features (Cont'd)

(1) Supervisory Signaling (Cont'd)

Nonrecurring Charge

(c) E&M Type I Supervisory Signaling* (NCI ++EA+)

FGB and BSA-B, first trunk ...... $101.52 FGB and BSA-B, additional trunk .. $ 37.06

(D) (D)

FGD and BSA-D, first trunk ...... $101.52 FGD and BSA-D, additional trunk .. $ 37.06

(d) E&M Type II Supervisory Signaling* (NCI ++EB+)

FGB and BSA-B, first trunk ...... $101.52 FGB and BSA-B, additional trunk .. $ 37.06

(D) (D)

FGD and BSA-D, first trunk ...... $101.52 FGD and BSA-D, additional trunk .. $ 37.06

* Available with interface groups 1 and 2.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-183 Cancels 4th Revised Page 6-183

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(G) Switched Transport Features (Cont'd)

(1) Supervisory Signaling (Cont'd)

Nonrecurring Charge

(e) E&M Type III Supervisory Signaling* (NCI ++EC+)

(D) (D)

FGD and BSA-D, first trunk ...... $101.52 FGD and BSA-D, additional trunk .. $ 37.06

* Available with interface groups 1 and 2.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 6-184 Cancels 4th Revised Page 6-184

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(G) Switched Transport Features (Cont'd)

Nonrecurring Charge

(2) Customer specification of the receive transmission level *(TLV)

FGA and BSA-A, first line ...... $ 9.38 FGA and BSA-A, additional line ...... $ 7.71

FGB and BSA-B, first trunk ...... $ 83.76 FGB and BSA-B, additional trunk ...... $ 33.51

(D) (D)

FGD and BSA-D, first trunk ...... $ 83.76 FGD and BSA-D, additional trunk ...... $ 33.51

(3) Customer specification of the Switched Transport Termination Four-wire termination in lieu of two-wire termination**(NC S+T+)

FGB and BSA-B, first trunk ...... $117.54 FGB and BSA-B, additional trunk ...... $ 37.06

* Available with interface groups 2 through 9 for FGA, FGB, FGD, BSA-A, BSA-B, (D) and BSA-D. The range of transmission levels which may be specified is (D) described in Technical Reference TR-NPL-000334.

** Available with FGB and BSA-B routed to an access tandem with type B Transmission Performance.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 6-184.1 Cancels 8th Revised Page 6-184.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(G) Switched Transport Features (Cont'd)

(4) Multiplexing

(a) DS1 to Voice Grade USOC Rate per Month (per multiplexer) (MKW1X,M6W1X) Nonzoned $113.10(R)

Zone 1 - AR $113.00(R) Zone 2 - AR $113.00(R) Zone 3 - AR $113.00(R)

Zone 1 - MO $113.00(R) Zone 2 - MO $113.00(R) Zone 3 - MO $113.00(R)

Zone 1 - OK $113.00(R) Zone 2 - OK $113.00(R) Zone 3 - OK $113.00(R)

Zone 1 - TX $113.00(R) Zone 2 - TX $113.00(R) Zone 3 - TX $113.00(R)

Nonrecurring Charge

Nonzoned $ 0.00

Zone 1 - AR $ 0.00 Zone 2 - AR $ 0.00 Zone 3 - AR $ 0.00

Zone 1 - MO $ 0.00 Zone 2 - MO $ 0.00 Zone 3 - MO $ 0.00

Zone 1 - OK $ 0.00 Zone 2 - OK $ 0.00 Zone 3 - OK $ 0.00

Zone 1 - TX $ 0.00 Zone 2 - TX $ 0.00 Zone 3 - TX $ 0.00

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 3071 )

Issued: June 16, 2005 Effective: July 1, 2005

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-184.2 Cancels 6th Revised Page 6-184.2

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.2 Switched Transport (Cont'd)

(G) Switched Transport Features (Cont'd)

(4) Multiplexing (Cont'd)

(b) DS3 to DS1 USOC Rate per Month (per multiplexer) (MKW3X,M6W3X) Nonzoned $815.00

Zone 1 - AR $556.00(R) Zone 2 - AR $556.00(R) Zone 3 - AR $556.00(R)

Zone 1 - MO $556.00(R) Zone 2 - MO $556.00(R) Zone 3 - MO $556.00(R)

Zone 1 - OK $556.00(R) Zone 2 - OK $556.00(R) Zone 3 - OK $556.00(R)

Zone 1 - TX $556.00(R) Zone 2 - TX $556.00(R) Zone 3 - TX $556.00(R)

Nonrecurring Charge Nonzoned $202.00

Zone 1 - AR $202.00 Zone 2 - AR $202.00 Zone 3 - AR $202.00

Zone 1 - MO $202.00 Zone 2 - MO $202.00 Zone 3 - MO $202.00

Zone 1 - OK $202.00 Zone 2 - OK $202.00 Zone 3 - OK $202.00

Zone 1 - TX $202.00 Zone 2 - TX $202.00 Zone 3 - TX $202.00

(c) Supergroup to Group USOC Rate per Month (per multiplexer) M5S $180.00

(d) Group to DS1 (per multiplexer) M5G $180.00

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 2901 )

Issued: June 17, 2002 Effective: July 2, 2002

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 46th Revised Page 6-185 Cancels 45th Revised Page 6-185

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching

(A) Bundled Local Switching Usage Rate per Access Minute Originating Terminating Premium LS1 $0.002563 $0.000700 (R) LS2 $0.002563 $0.000700 (R)

Non-premium $0.001153 $0.000315 (R)

(B) Unbundled Local Switching Usage

Premium LS1 $0.002563 $0.000700 (R) LS2 $0.002563 $0.000700 (R)

Non-premium $0.001153 $0.000315 (R)

(C) Dedicated End Office Port

Originating Terminating Originating Monthly Terminating Monthly USOC Rate USOC Rate

Per Port 3PO1X $ 18.96 3PT1X $0.00

(D) Shared End Office Trunk Port Originating Terminating Rate per Access Minute $0.000900 $0.00

(E) 900 Access Service NXX Activation Charge Nonrecurring Charge

First NXX ...... $ 78.65 Additional NXX ...... $ 15.78

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 3427 )

Issued: June 16, 2016 Effective: July 1, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 6-186 Cancels 11th Revised Page 6-186

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(F) 0+900 Access Service Installation Charge Nonrecurring Charge

- Per end office that requires modification, within a LATA ...... $548.00

(G) Common Switching Features Nonrecurring Charge

(1) Alternate Traffic Routing USOC

(a) End Office Alternate NR4EO Routing(CRRE)

FGB, per trunk group ...... $ 0.00 (R)

FGD, per trunk group ...... $ 0.00 (R)

(b) Multiple Traffic NR4AR Routing (ARTG)

FGB, per trunk group ...... $ 0.00 (R)

FGD, per trunk group ...... $ 0.00 (R)

(2) Automatic Number NR4AN Identification (ANI)

FGB and BSA-B, per trunk group ...... $ 0.00 (R)

FGD, first end office ...... $ 0.00 (R)

FGD, additional end office ...... $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 6-187 Cancels 11th Revised Page 6-187

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(G)Common Switching Features (Cont'd)

USOC Nonrecurring Charge

(3) Band Advance Arrangement NR4BA for use with WATS Access Line Service (BAAD)

FGA and BSA-A, first WATS Access Line hunt group ...... $ 0.00 (R) FGA and BSA-A, additional WATS Access Line hunt groups ...... $ 0.00 (R)

FGB and BSA-B, first WATS Access Line hunt group ...... $ 0.00 (R) FGB and BSA-B, additional WATS Access Line hunt groups ...... $ 0.00 (R)

FGD and BSA-D, first WATS Access Line hunt group ...... $ 0.00 (R) FGD and BSA-D, additional WATS Access Line hunt groups ...... $ 0.00 (R)

(4) Call Denial on Line NR4CD or Hunt Group (CAD)

FGA and BSA-A, first line ...... $ 0.00 (R) FGA and BSA-A, additional line ...... $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 15th Revised Page 6-188 Cancels 14th Revised Page 6-188

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(G) Common Switching Features (Cont'd) Nonrecurring USOC Charge

(5) Carrier Identification Code

(a) Establish or Add NR4AC

FGB and BSA-B, first end office ... $ 0.00 (R) FGB and BSA-B, add'l end offices .. $ 0.00 (R) FGB and BSA-B, per tandem ...... $ 0.00 (R)

FGD and BSA-D, first end office ... $ 0.00 (R) FGD and BSA-D, add'l end offices .. $ 0.00 (R) FGD and BSA-D, per tandem ...... $ 0.00 (R)

(b) Change NR4CC

FGB and BSA-B, first end office ... $ 0.00 (R) FGB and BSA-B, add'l end offices .. $ 0.00 (R) FGB and BSA-B, per tandem ...... $ 0.00 (R)

FGD and BSA-D, first end office ... $ 0.00 (R) FGD and BSA-D, add'l end offices .. $ 0.00 (R) FGD and BSA-D, per tandem ...... $ 0.00 (R)

(c) Delete NR4DC

FGB and BSA-B, first end office ... $ 0.00 (R) FGB and BSA-B, add'l end offices .. $ 0.00 (R) FGB and BSA-B, per tandem ...... $ 0.00 (R)

FGD and BSA-D, first end office ... $ 0.00 (R) FGD and BSA-D, add'l end offices .. $ 0.00 (R) FGD and BSA-D, per tandem ...... $ 0.00 (R)

(6) Carrier Identification Code Parameter (CIP) Rate per Call

FGD and BSA-D ...... $0.000100

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-189 Cancels 7th Revised Page 6-189

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(G) Common Switching Features (Cont'd) Nonrecurring USOC Charge

(7) Carrier Selection NR4CS Parameter (CARP)

FGD and BSA-D, first end office ...... $ 0.00 (R) FGD and BSA-D, add'l end offices ..... $ 0.00 (R)

(8) Cut Through (CTO) NR4CT

FGD and BSA-D, first end office ...... $ 0.00 (R) FGD and BSA-D, add'l end offices ..... $ 0.00 (R)

(9)

(10) Dial Pulse Address NR4DP Signaling (ADS DP)

FGB and BSA-B, first trunk ...... $ 0.00 (R) FGB and BSA-B, additional trunks ..... $ 0.00 (R)

(11) End Office End User Line NR4BD Service Screening for use with WATS Access Line Service (BAND)

FGD and BSA-D, first WATS Access Line $ 0.00 (R) FGD and BSA-D, add'l WATS Access Lines $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 6-190 Cancels 8th Revised Page 6-190

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(G) Common Switching Features (Cont'd) Nonrecurring USOC Charge

(12) BSA-D with 950 Access NR4NF (FGD9)

FGD and BSA-D, first end office ...... $ 0.00 (R) FGD and BSA-D, additional end offices . $ 0.00 (R)

(13) Flexible Automatic NR4FA Number Identification (FANI)

FGD, first end office ...... $ 0.00 FGD, additional end offices ...... $ 0.00

(14) Hunt Group Arrangement NR4HG (HML/HTG)

FGA, first line ...... $ 0.00 (R) FGA, additional lines ...... $ 0.00 (R)

(15) Hunt Group Arrangement NR4HG for use with WATS Access Line Service (HML/HTG)

FGA and BSA-A, first WATS Access Line $ 0.00 (R) FGA and BSA-A, add'l WATS Access Lines $ 0.00 (R)

FGB and BSA-B, first WATS Access Line $ 0.00 (R) FGB and BSA-B, add'l WATS Access Lines $ 0.00 (R)

FGD and BSA-D, first WATS Access Line $ 0.00 (R) FGD and BSA-D, add'l WATS Access Lines $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 6-191 Cancels 8th Revised Page 6-191

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(G) Common Switching Features (Cont'd)

USOC Nonrecurring Charge

(16) Immediate Dial Pulse NR41D Address Signaling (ADS IDP)

FGB and BSA-B, first trunk ...... $ 0.00 (R) FGB and BSA-B, additional trunks ...... $ 0.00 (R)

(17) International Carrier NR41C Feature (INCO)

FGD and BSA-D, first end office ...... $ 0.00 (R) FGD and BSA-D, add'l end offices ...... $ 0.00 (R) FGD and BSA-D, per tandem ...... $ 0.00 (R)

(18) Nonhunting Number NR4NH Arrangement for use with Hunt Group Arrangement or Uniform Call Distribution Arrangement (NHN)

FGA, first line ...... $ 0.00 (R) FGA, additional lines ...... $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 6-192 Cancels 8th Revised Page 6-192

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(G) Common Switching Features (Cont'd) Nonrecurring USOC Charge

(19) Nonhunting Number Arrangement NR4NH for use with Hunt Group Arrangement or Uniform Call Distribution Arrangement for Use with WATS Access Line Service (NHN)

FGA and BSA-A, first WATS Access Line $ 0.00 (R) FGA and BSA-A, add'l WATS Access Lines $ 0.00 (R)

FGB and BSA-B, first WATS Access Line $ 0.00 (R) FGB and BSA-B, add'l WATS Access Lines $ 0.00 (R)

FGD and BSA-D, first WATS Access Line $ 0.00 (R) FGD and BSA-D, add'l WATS Access Lines $ 0.00 (R)

(20) Overlap Outpulsing NR4OV (OVL)

FGD and BSA-D, first end office ...... $ 0.00 (R) FGD and BSA-D, add'l end offices ..... $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-193 Cancels 7th Revised Page 6-193

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(G) Common Switching Features (Cont'd)

USOC Nonrecurring Charge

(21) Service Class Routing NR4SC (SCRT)

FGD and BSA-D, first end office ...... $ 0.00 (R) FGD and BSA-D, add'l end offices ..... $ 0.00 (R)

(22) Service Code Denial on NR4SD Line or Hunt Group (SCD)

FGA and BSA-A, first line ...... $ 0.00 (R) FGA and BSA-A, additional lines ...... $ 0.00 (R)

(23) Trunk Access Limitation NR4CH (CHOK)

FGD and BSA-D, per trunk group ...... $ 0.00 (R)

(24) Uniform Call Distribution NR4UD Arrangement (HTY UD)

FGA, first line ...... $ 0.00 (R) FGA, additional lines ...... $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 6-194 Cancels 9th Revised Page 6-194

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(G) Common Switching Features (Cont'd) Nonrecurring USOC Charge

(25) Uniform Call Distribution NR4UD Arrangement for use with WATS Access Line Service (HTY UD)

FGA and BSA-A, first WATS Access Line $ 0.00 (R) FGA and BSA-A, add'l WATS Access Lines $ 0.00 (R)

FGB and BSA-B, first WATS Access Line $ 0.00 (R) FGB and BSA-B, add'l WATS Access Lines $ 0.00 (R)

FGD and BSA-D, first WATS Access Line $ 0.00 (R) FGD and BSA-D, add'l WATS Access Lines $ 0.00 (R)

(26) Up to 7 Digits NR4US Outpulsing (USDO)

FGB and BSA-B, per end office ...... $ 0.00 (R) FGB and BSA-B, per tandem ...... $ 0.00 (R)

(27) Wink Start Address NR4WA Signaling (ADS WS)

FGB and BSA-B, first trunk ...... $ 0.00 (R) FGB and BSA-B, additional trunks ..... $ 0.00 (R)

Recurring Charge

(28) Alternate Billing Indicator (XXXX) ... $ 0.00

Nonrecurring Charge

FGA and BSA-A, per line ...... $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 6-194.1 Cancels 3rd Revised Page 6-194.1

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(This page filed under Transmittal No. 2295 )

Issued: September 1, 1993 Effective: December 1, 1993

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-195 Cancels 5th Revised Page 6-195

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(H) Transport Termination Features Nonrecurring USOC Charge

(1) Line Side Terminations

(a) Originating Operation NR8TT

- Any change from Loop Start to Ground Start or Ground Start to Loop Start (NC ++++)

FGA and BSA-A, first line ...... $ 0.00 (R) FGA and BSA-A, additional lines $ 0.00 (R)

(b) Terminating Operation NR8TT or Two-Way Operation

- Any change from Loop Start to Ground Start or Ground Start to Loop Start (NC ++++)

FGA and BSA-A, first line ...... $ 0.00 (R) FGA and BSA-A, additional lines $ 0.00 (R)

- Any change from Dial Pulse to Dual Tone Multifrequency or Dual Tone Multifrequency to Dial Pulse (NC ++++)

FGA and BSA-A, first line ...... $ 0.00 (R) FGA and BSA-A, additional lines $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-196 Cancels 6th Revised Page 6-196

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(H) Transport Termination Features (Cont'd) Nonrecurring USOC Charge

(2) Trunk Side Terminations

(a) Dial Pulse Station NR8RD Signaling Trunk (TTC RD)

FGB and BSA-B, first trunk ...... $ 0.00 (R) FGB and BSA-B, additional trunks . $ 0.00 (R)

(b)

(c) Operator Trunk, Full NR8FF Feature Arrangement (TTC FF)

FGD and BSA-D, first trunk ...... $ 0.00 (R) FGD and BSA-D, additional trunks . $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-197 Cancels 6th Revised Page 6-197

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(H) Transport Termination Features (Cont'd)

(2) Trunk Side Terminations (Cont'd)

USOC Nonrecurring Charge

(d) Standard Trunk for NR8ST Originating(TTC SO)

FGB and BSA-B, first trunk ...... $ 0.00 (R) FGB and BSA-B, additional trunks . $ 0.00 (R)

FGD and BSA-D, first trunk ...... $ 0.00 (R) FGD and BSA-D, additional trunks . $ 0.00 (R)

(e) Standard Trunk for NR8ST Terminating Operation (TTC ST)

FGB and BSA-B, first trunk ...... $ 0.00 (R) FGB and BSA-B, additional trunks . $ 0.00 (R)

FGD and BSA-D, first trunk ...... $ 0.00 (R) FGD and BSA-D, additional trunks . $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 6-198 Cancels 6th Revised Page 6-198

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(H) Transport Termination Features (Cont'd)

(2) Trunk Side Terminations (Cont'd)

USOC Nonrecurring Charge

(f) Standard Trunk for NR8ST Two-Way Operation (TTC TY)

FGB and BSA-B, first trunk ...... $ 0.00 (R) FGB and BSA-B, additional trunks . $ 0.00 (R)

FGD and BSA-D, first trunk ...... $ 0.00 (R) FGD and BSA-D, additional trunks . $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-199 Cancels 5th Revised Page 6-199

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.3 Local Switching (Cont'd)

(I) Line Termination Features

USOC Nonrecurring Charge

(1) Originating Operation or NR8TT Two-Way Operation

- Any change from Loop Start to Ground Start or Ground Start to Loop Start (NC ++++)

first WATS Access line ...... $ 0.00 (R) additional WATS Access lines ...... $ 0.00 (R)

- Any change from Dial Pulse to Dual Tone Multifrequency or Dual Tone Multifrequency to Dial Pulse (NC ++++)

first WATS Access line ...... $ 0.00 (R) additional WATS Access lines ...... $ 0.00 (R)

(2) Terminating Operation NR8TT

- Any change from Loop Start to Ground Start or Ground Start to Loop Start (NC ++++)

first WATS Access line ...... $ 0.00 (R) additional WATS Access lines ...... $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-200 Cancels 5th Revised Page 6-200

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.4 Basic Service Elements

(A) Alternate Traffic Routing

(1) End Office Routing (NR4EO)

Rate Per Month

Premium, per trunk group ...... $ 0.00 (D) Nonrecurring Charge

BSA-B, per trunk group ...... $ 0.00 BSA-D, per trunk group ...... $ 0.00

(2) Multiple Traffic Routing (NR4AR)

Rate Per Month

Premium, per trunk group ...... $ 0.00 (D) Nonrecurring Charge

BSA-B, per trunk group ...... $ 0.00

BSA-D, per trunk group ...... $ 0.00

(B) Automatic Number Identification (ANI)/Charge Number Parameter Rate Per Call

$ 0.00

Nonrecurring Charge

BSA-D, first end office ...... $ 0.00 BSA-D, additional end office ...... $ 0.00

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-201 Cancels 7th Revised Page 6-201

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.4 Basic Service Elements

(C) Direct Inward Dialing (DID)

(1) DID Trunk Termination (D) Rate Per Month

BSA-D, per trunk termination ...... $ 0.00

Nonrecurring Charge

BSA-D, per trunk termination ...... $ 0.00

(2) First Block of 100 DID Numbers (D)

Rate Per Month

$ 0.00

Nonrecurring Charge

$ 0.00

(3) Additional Block of 100 DID Numbers (D)

Rate Per Month

$ 0.00

Nonrecurring Charge

$ 0.00

(D) Flexible Automatic Number Identification (FANI)

Rate Per Call

$ 0.000

Nonrecurring Charge

BSA-D, first end office ...... $000.00 BSA-D, additional end office ...... $000.00

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates to allow it to calculate its price cap formulas to exclude USF contributions from the operation of the X-factor, or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 3393 )

Issued: August 11, 2014 Effective: August 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-202 Cancels 5th Revised Page 6-202

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.4 Basic Service Elements (Cont'd)

(E) Multiline Hunt Group

(1) Circular Hunting (NR4HG) Rate Per Month

Premium, per line ...... $ 0.00 (D)

Nonrecurring Charge

BSA-A, first line ...... $ 0.00 BSA-A, additional line ...... $ 0.00

Packet Switched MicroLink II, first line(1).... $ 0.00 Packet Switched MicroLink II, add'l line(1).... $ 0.00

(2) Preferential Hunting (NR4HG) Rate Per Month

Premium, per line ...... $ 0.00 (D) Nonrecurring Charge

BSA-A, first line ...... $ 0.00 BSA-A, additional line ...... $ 0.00

Packet Switched MicroLink II, first line(1) ... $ 0.00 Packet Switched MicroLink II, add'l line(1) ... $ 0.00

(3) Regular Line Hunting (NR4HG) Rate Per Month

Premium, per line ...... $ 0.00 (D) Nonrecurring Charge

BSA-A, first line ...... $ 0.00 BSA-A, additional line ...... $ 0.00

Packet Switched MicroLink II, first line(1) ... $ 0.00 Packet Switched MicroLink II, add'l line(1) ... $ 0.00

(1) For MicroLink II Service arrangements, this element is obsolete and limited to existing installations, for existing customers, as of September 30, 1997 and will no longer be available after April 1, 1999.

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-203 Cancels 5th Revised Page 6-203

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.4 Basic Service Elements (Cont'd)

(F) Nonhunting Number Arrangement (NR4NH)

Rate Per Month

Premium, per line ...... $ 0.00 (D)

Nonrecurring Charge

BSA-A, first line ...... $ 0.00 BSA-A, additional line ...... $ 0.00

(G) Queing (NR4QA)

Rate Per Month (D) Premium, per arrangement ...... $ 0.00

Nonrecurring Charge

BSA-A, initial arrangement ...... $ 0.00 BSA-A, subsequent arrangement ...... $ 0.00

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-204 Cancels 5th Revised Page 6-204

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.4 Basic Service Elements (Cont'd)

(H) Recorded Announcements (NR4QB) Rate Per Month

Premium, per announcement ...... $ 0.00 (D) Nonrecurring Charge

BSA-A, initial announcement ...... $ 0.00 BSA-A, subsequent announcement ...... $ 0.00

BSA-B, initial announcement ...... $ 0.00 BSA-B, subsequent announcement ...... $ 0.00

BSA-D, initial announcement ...... $ 0.00 BSA-D, subsequent announcement ...... $ 0.00

(I) Remote Make Busy (MKK) Rate Per Month

Premium, per arrangement ...... $ 0.00 (D) Nonrecurring Charge

BSA-A, initial arrangement ...... $ 0.00 BSA-A, subsequent arrangement ...... $ 0.00

(J) Remote Make Busy - Trunk Side (MKK) Rate Per Month

Premium, per arrangement ...... $ 0.00 (D)

Nonrecurring Charge

BSA-B, initial arrangement ...... $ 0.00 BSA-B, subsequent arrangement ...... $ 0.00

BSA-D, initial arrangement ...... $ 0.00 BSA-D, subsequent arrangement ...... $ 0.00

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 6-205 Cancels 7th Revised Page 6-205

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.4 Basic Service Elements (Cont'd)

(K) Simplified Message Desk Interface (SMDI) (XXXX)

Rate Per Call

BSA-A, per SMDI arrangement ...... $ 0.00

Rate Per Month

BSA-A, per SMDI arrangement ...... $ 0.00

Nonrecurring Charge

BSA-A, per SMDI arrangement ...... $ 0.00

(L) Simplified Message Desk Interface - Expanded (SMDI-E) (SOEPG)

Rate Per Month

BSA-A, per SMDI-E arrangement ...... $ 0.00

Nonrecurring Charge

BSA-A, per SMDI-E arrangement ...... $ 0.00

(M) Uniform Call Distribution Arrangement (NR4UD)

Rate Per Month

Premium, per line ...... $ 0.00 (D) Nonrecurring Charge

BSA-A, first line ...... $ 0.00 BSA-A, additional line ...... $ 0.00

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-206 Cancels 5th Revised Page 6-206

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.5 Administrative Changes

Nonrecurring Charge

(A) Access Carrier Name Abbreviation (ACNA)

FGA and BSA-A, first line ...... $ 0.00 (R) FGA and BSA-A, additional line ...... $ 0.00 (R)

FGB and BSA-B, per trunk group ...... $ 0.00 (R)

FGD and BSA-D, per trunk group ...... $ 0.00 (R)

DNAL, first channel ...... $ 0.00 (R) DNAL, additional channel ...... $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 6-207 Cancels 5th Revised Page 6-207

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.5 Administrative Changes (Cont'd)

Nonrecurring Charge

(B) Billing Account Number (BAN)

FGA and BSA-A, first line ...... $ 0.00 (R) FGA and BSA-A, additional line ...... $ 0.00 (R)

FGB and BSA-B, per trunk group ...... $ 0.00

FGD and BSA-D, per trunk group ...... $ 0.00

DNAL, first channel ...... $ 0.00 (R) DNAL, additional channel ...... $ 0.00 (R)

(C) Customer Circuit Identification (CKR)

FGA and BSA-A, first line ...... $ 0.00 (R) FGA and BSA-A, additional line ...... $ 0.00 (R)

FGB and BSA-B, per trunk group ...... $ 0.00 (R)

FGD and BSA-D, per trunk group ...... $ 0.00 (R)

DNAL, first channel ...... $ 0.00 (R) DNAL, additional channel ...... $ 0.00 (R)

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 6-208 Cancels 11th Revised Page 6-208

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.6 Information Surcharge

Rate per Access Minute

Premium ...... $ 0.000000 (D)

6.9.7 Dedicated Network Access Link (DNAL)

Rate per Month

(A) DNAL Termination Per point of termination (JSTAX) $ 22.94

(B) DNAL Mileage Fixed (1T5WX) 0 miles ...... $ 0.00 Over 0 miles ...... $ 21.06 Per Mile (1T5WX) 0 miles ...... $ 0.00 Over 0 miles ...... $ 1.00

Nonrecurring Charge

(C) Installation first termination (JSTAX) ...... $129.00 additional terminations (JSTAX) ...... $ 89.00

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively back to the transmittal's original effective date, in the event the Commission or a court subsequently authorizes SWBT to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver (and including, but not limited to, any application for Review of the letter from Lawrence E. Strickling, Chief, Common Carrier bureau, FCC, to Dale Robertson, SBC, dated May 18, 1999 which may be filed with the Commission), or in the event of any other adjustment pursuant to an order of the Commission or a court.

(This page filed under Transmittal No. 3382 )

Issued: September 24, 2013 Effective: October 9, 2013

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 22nd Revised Page 6-209 Cancels 21st Revised Page 6-209

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

6.9.8 800 Number Portability Access Service (NPAS)

Rate Per Query

(A) 800 NPAS Query ...... $ .002531

(B) POTS Translation ...... $ .0000

(C) Call Validation ...... $ .0000

(D) Call Handling and Destination ...... $ .000271

6.9.9 Advanced Carrier Identification Service (ACIS)

Rate Per Call

Carrier Identification Feature (CIF) ...... $ 0.00 (R)

6.9.10 Message Unit Credit

Factor

FGA and BSA-A, per originating access minute ...... (.002123)*

*() equals a negative amount.

Rates contained in this transmittal are subject to subsequent adjustment, effective retrospectively, in the event the Commission or a court subsequently authorizes Southwestern Bell Telephone Company to correct its rates pursuant to pending motions, or petitions for reconsideration or waiver, or in the event of any other adjustment to an order of the Commission or a court.

(This page filed under Transmittal No. 3391 )

Issued: June 16, 2014 Effective: July 1, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-210 Cancels 2nd Revised Page 6-210

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

(D) │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 6-211 Cancels 2nd Revised Page 6-211

ACCESS SERVICE

6. Switched Access Service (Cont'd)

6.9 Rates and Charges (Cont'd)

(D) │ │ │ │ │ │ │

(This page filed under Transmittal No. 2477 )

Issued: July 17, 1995 Effective: August 31, 1995

Four AT&T Plaza, Dallas, Texas 75202