Illinois Bell Telephone Company AT&T Tariff ILL. C.C. NO. 22 D/B/A

Illinois Bell Telephone Company AT&T Tariff ILL. C.C. NO. 22 d/b/a AT&T Illinois d/b/a AT&T Wholesale Part 23 Section 2

PART 23 - IC Service for LE Telecommunications Carriers 2nd Revised Sheet 1 SECTION 2 - Ameritech End Office Integration Service Cancels 1st Revised Sheet 1

1. GENERAL

1.1 Ameritech End Office Integration Service is available for use in the provision of a telecommunications service as specified to the extent required by the Telecommunications Act of 1996, Pub. L. No. 104-104, 110 Stat. 56 (1996)(“the Act”) and the rules and regulations of the Federal Communications Commission, the IL PUA and the rules and regulations of the Illinois Commerce Commission. The Company intends that this tariff fully complies with the Company’s obligations under the Illinois Public Utilities Act as amended effective June 30, 2001 (“Illinois PUA”).

The Company has filed this tariff under compulsion of the Illinois Public Utilities Act, including as amended by Illinois Public Act 92-0022, and at the direction of the Illinois Commerce Commission, and specifically reserves any and all rights and remedies it may have relating to possible challenges to Illinois Public Act 92-0022 and this tariff under state and federal law, including federal preemption law. In addition, the Company reserves its right to withdraw this tariff in accordance with any applicable law, including but not limited to the decision of the United States Court of Appeals for the 7th Circuit in Wisconsin Bell v. Bie, Nos. 02-3854 and 02-3897 and the decision of the Appellate Court of Illinois in Illinois Bell v. Illinois Commerce Commission, Case Nos. 3-02-0738 and 3-02-0920 (Consolidated).

1.2 This Section contains a schedule of rates and regulations applicable to the Ameritech End Office Integration Service of AT&T Illinois, hereafter referred to as the “Company”. General Regulations as found in Part 2 of this tariff and Illinois Guidebook, Part 2, apply to this Section (T) unless otherwise specified in this Section. The term “customer”, which appears in Part 2 of the General Regulations, is the equivalent of the term “telecommunication carrier” as used in this Section, which includes “originating carrier” for the purposes of transiting. Unless otherwise indicated herein, the obligations and responsibilities of the telecommunications carrier or party do not apply to the subtending third party carrier with respect to transiting.

1.3 Ameritech End Office Integration Service (AEOIS) is a specialized form of interconnection intended for the purpose of integrating the end office and/or tandem switches of Local Exchange Telecommunications Carriers, hereafter referred to as a “carrier”, to the Company’s public switched network for the completion of local service area calls between and within exchanges without requiring the use of access codes by either carrier. Non-local service area calls must be terminated using alternative interconnection arrangements; e.g., carriers may interconnect with the Company’s facilities for cross-connect services under Section 4. Carriers (T) may also connect at any technically feasible point in the network including, at a minimum:

Issued: April 30, 2014 Effective: May 1, 2014 By W. Karl Wardin, Regional Vice President - Regulatory 225 West Randolph Street, Chicago, Illinois 60606 ATT TN IW-14-0019 Illinois Bell Telephone Company AT&T Tariff ILL. C.C. NO. 22 d/b/a AT&T Illinois d/b/a AT&T Wholesale Part 23 Section 2

PART 23 - IC Service for LE Telecommunications Carriers 2nd Revised Sheet 2 SECTION 2 - Ameritech End Office Integration Service Cancels 1st Revised Sheet 2

1. GENERAL (cont’d)

1.3 (cont'd)

• Line side of the local switch • Trunk side of the local switch • Trunk interconnection points for the tandem switch • Central Office cross connect points • Out of band signaling transfer points necessary to exchange traffic at these points and access call related databases, and • Points of access to unbundled network elements.

Carriers may also request a non-standard interconnection.

1.4 AEOIS is subject to rules and regulations associated with services used in its provisioning.

1.5 General regulations, as found in Part 2 of this tariff and the Illinois Guidebook, apply to this (T) Section unless otherwise specified in the Section.

2. TECHNICAL REFERENCES

2.1 AEOIS integrates a carrier’s network into the Company’s existing switched network. The carrier is responsible for the compatibility of its network.

A. Electrical/Optical interfaces:

Bellcore Technical Publication TR-INS-000342; High Capacity Digital Special Access Service, Transmission Parameter Limits and Interface Combinations.

Ameritech Technical Publication AM-TR-TMO-000072; Service Description and Interface Requirements for Ameritech’s Optical Service.

B. End Office-to-End Office and/or End Office-to-Tandem Office Signaling Procedures for Trunking:

Bellcore Special Report R-TSV-002275, BOC Notes on the LEC Networks 1990-Signaling.

AT&T Supplement AM-TR-OAT-000069, Common Channel Signaling Network Interface (T) Specification.

PART 23 - IC Service for LE Telecommunications Carriers 3rd Revised Sheet 3 SECTION 2 - Ameritech End Office Integration Service Cancels 2nd Revised Sheet 3

3. COMPENSATION

3.1 Reciprocal Compensation

Each party agrees to compensate the other for terminated Section 251(b)(5) Traffic/1/ originated on its network. The following rates apply for Section 251(b)(5) Traffic originated on a carrier’s network and terminated on the Company’s network./2/

End Office Local Termination $0.000700 per MOU (R) Tandem Switching 0.000927 per MOU Tandem Transport Termination 0.000184 per MOU Tandem Transport Facility Mileage 0.000013 per MOU per Mile

/1/ Section 251(b)(5) Traffic is traffic within Usage Bands A and B originating and terminating exchange combinations or Flat Rate Local Calling Areas as specified in Part 4, Section 2 of ILL. C.C. No. 19, excluding ISP-Bound Traffic. On or about June 16, 2003, SBC Illinois made an offer to exchange all Section 251(b)(5) Traffic and ISP-Bound Traffic in the State of Illinois on and after September 1, 2003 at the capped rates established for ISP-Bound Traffic in the FCC’s Order on Remand and Report and Order in CC Dockets No. 96-98 and 99-68, In the Matter of the Local Competition Provisions in the Telecommunications Act of 1996; Intercarrier Compensation for ISP-Bound Traffic (“FCC’s Compensation Order”) and the associated terms and conditions set forth in such order. The capped rate established in the FCC’s Compensation Order as of the effective date of this tariff page is $0.0007 per MOU. If the telecommunications carrier has not accepted SBC Illinois’ offer, then the rates, terms and conditions prescribed in Section 3.1 above shall apply to Section 251(b)(5) Traffic and the rates for ISP-Bound Traffic and associated terms and conditions specified in the FCC’s Compensation Order shall apply to ISP-Bound Traffic. Telecommunications carriers that wish to accept SBC Illinois’ offer to exchange Section 251(b)(5) and ISP-Bound Traffic at the capped rates established for ISP-Bound Traffic in the FCC’s Compensation Order and on terms and conditions consistent with these rates must do so in accordance with the procedure documented on the CLEC Online website or communicated via accessible letter. /2/ Calls that are neither Section 251(b)(5) Traffic nor ISP-Bound Traffic terminating on the Company’s network are subject to Switched Access Service charges as found in Ameritech companies’ Tariff F.C.C. No. 2, Section 6, or Illinois Bell Telephone Company ILL. C.C. No. 21, Section 6.

Issued: May 27, 2016 Effective: July 1, 2016 By W. Karl Wardin, Regional Vice President - Regulatory 225 West Randolph Street, Chicago, Illinois 60606 ATT TN IW-16-0018 Illinois Bell AT&T Tariff ILL. C.C. NO. 22 Telephone Company Part 23 Section 2

PART 23 - IC Service for LE Telecommunications Carriers 1st Revised Sheet 4 SECTION 2 - Ameritech End Office Integration Service Cancels Original Sheet 4

3. COMPENSATION (cont’d)

3.2 Transiting

The telecommunication carrier agrees to compensate AT&T Illinois for transit calls at the following rates.

- Transiting (Local and IntraLATA Toll):

Tandem Switching $0.004836 per MOU Tandem Transport 0.000189 per MOU Tandem Transport Facility 0.000009 per MOU

Issued: August 31, 2010 Effective: October 15, 2010 By W. Karl Wardin, Regional Vice President - Regulatory 225 West Randolph Street, Chicago, Illinois 60606 ATT TN IW-10-0020 Illinois Bell AT&T Tariff ILL. C.C. NO. 22 Telephone Company Part 23 Section 2

PART 23 - IC Service for LE Telecommunications Carriers 1st Revised Sheet 5 SECTION 2 - Ameritech End Office Integration Service Cancels Original Sheet 5

3. COMPENSATION (cont’d)

3.3 Application

- Rates for tanden switching, tandem transport termination, and tandem transport facility are assessed to all local service area calls transported via the tandem. Additionally, for calls completing to a company end office, the End Office Local Termination rate applies.

- When local service area calls are not transported via a tandem, only the End Office Local Termination rate is assessed.

3.4 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996

3.4.1 General

Ameritech has entered into Agreements with telecommunications carriers pursuant to Sections 251 and 252 of the Federal Telecommunications Act of 1996. Section 252 (i) of the Act provides that Ameritech Illinois must make available any interconnection, service, or network element provided under such an agreement to any other requesting telecommunications carrier upon the same terms and conditions as those provided in the agreement. Ameritech Illinois' Agreements have been filed with the Office of the Chief Clerk. The contracts available to takers of the service tariffed in this volume are:

Docket No. Expiration Date Contracting Carrier

96 NA-003 June 26, 1999 WinStar Wireless of Illinois, Inc. 96 NA-005 October 29, 1999 Consolidated Communications Telecom Services, Inc. 96 AA-001 January 14, 2002 AT&T Communications of Illinois, Inc. 96 AA-002 January 7, 2000 TCG Illinois/TCG Chicago 96 NA-006 October 28, 1999 Focal Communications Corporation 96 NA-007 December 18, 1999 Eastern Missouri Cellular, et al.

PART 23 - IC Service for LE Telecommunications Carriers 1st Revised Sheet 6 SECTION 2 - Ameritech End Office Integration Service Cancels Original Sheet 6

3. COMPENSATION (cont'd)

3.4 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

3.4.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

96 NA-008 December 18, 1999 Southwestern Bell Mobile Systems, Inc. (SBMS, et al) 97 AA-003 February 25, 2000 Sprint Communications Company L.P. 97 NA-001 December 12, 1998 360 Communications 97 NA-004 December 13, 1998 U.S. Cellular Corporation 97 NA-003 December 18, 1999 TCI Telephony Services of Illinois, Inc. 97 AA-002 May 5, 2000 MCIMetro Access Transmission Services, Inc. 97 NA-006 March 6, 2000 Southwestern Bell Mobile Systems, Inc. d/b/a Cellular One-Chicago/Gary Cellular Telephone Company 97 NA-005 February 25, 1999 BellSouth Cellular Corporation 97 NA-007 February 11, 1998 Rockford MSA Limited Partnership 97 NA-008 February 11, 1998 GTE Mobilnet of Davenport Incorporated 97 NA-009 February 11, 1998 Illinois RSA 1 Limited Partnership 97 NA-010 March 11, 1999 Ameritech Mobile Communications, Incorporated 97 NA-011 March 17, 1999 AT&T Wireless Services, Incorporated 97 NA-012 April 9, 1999 One Comm Corporation, N.A. (Nextel)

PART 23 - IC Service for LE Telecommunications Carriers 1st Revised Sheet 7 SECTION 2 - Ameritech End Office Integration Service Cancels Original Sheet 7

3. COMPENSATION (cont'd)

3.4 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

3.4.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

97 NA-016 May 17, 1999 MFS Intelnet of Illinois Incorporated 97 PA-020 August 30, 1998 GTE North Incorporated 97 NA-020 McLeodUSA Telecommunications Services, Inc. 97 NA-022 June 27, 1998 GTE North Incorporated 97 PA-038 June 30, 1999 Ameritech Indiana 97 PA-039 June 27, 1998 Southwestern Bell Telephone Company 97 PA-040 June 30, 1999 U.S. West Communications, Inc. 97 NA-024 July 14, 1999 PrimeCo Personal Communications, L.P. 97 NA-028 April 22, 2002 KMC Telecom, Incorporated 97 NA-026 May 30, 1999 Sprint Spectrum, L.P. 97 NA-030 July 17, 2002 U.S. Xchange, L.L.C. 97 NA-032 May 7, 2000 MGC Communications, Incorporated 97 NA-029 July 7, 2000 Intermedia Communications, Incorporated 97 NA-034 September 12, 2000 Teligent, L.L.C. 97 NA-039 September 10, 1998 Nextlink Illinois, Inc. 97 NA-042 October 22, 1998 Frontier Local Services, Inc. 97 NA-041 September 15, 2000 MidCom Communications, Inc. 98 NA-005 May 5, 2000 GTE Communications Corporation 98 NA-006 November 11, 1999 Alton CellTelCo Cellular Corporation 98 NA-012 May 17, 1999 OCI Communications of Illinois, Inc. 98 NA-013 April 8, 2001 InterAccess Co.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 8 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont'd)

3.4 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

3.4.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

98 NA-014 May 5, 2001 21st Century Telecom of Illinois, Inc. 98 NA-015 April 30, 2001 Forte Communications, Inc. 98 NA-016 May 5, 2001 LCI International Telecom Corporation 98 NA-017 March 30, 2001 Optel (Illinois) Telecom, Inc. 98 NA-019 May 16, 1999 Level 3 Communications, L.L.C. 98 NA-020 October 28, 1999 Allegiance Telecom of Illinois, Inc. 98 NA-021 November 30, 1998 Dakota Services Limited 98 NA-022 June 5, 1999 Net-Tel Corporation 98 NA-023 June 15, 2001 Amica Wireless Phone Service, Inc. 98 NA-024 April 22, 2001 Digital Teleport, Inc. 98 NA-027 June 26, 2001 Covad Communications Company 98 NA-028 July 14, 1999 Pre-Paid Local Access Phone Company 98 NA-030 March 6, 1999 Comm South Companies 98 NA-031 July 31, 1999 Omnicall, Inc. 98 NA-034 August 10, 1999 United States Telecommunications, Inc. 98 NA-035 July 27, 1999 LDD, Inc. 98 NA-033 October 3, 2000 US West Interprise America, Inc. 98 NA-037 August 18, 2001 Accelerated Connections, Inc. 97 NA-025 July 23, 1999 Central Telephone Company of Illinois 98 NA-040 May 5, 2000 QST Communications, Inc. 98 NA-044 November 30, 2001 Iowa Wireless Services, Inc. 98 NA-043 October 28, 1999 Megs Inet, Inc. 99 NA-002 December 15, 2000 Topp Comm., Inc. 99 NA-004 October 28, 1999 Digital Pipeline Comm. Inc.

Pursuant to order of Ill. C.C. in Dockets 99 NA-002, dated April 21, 1999 and 99 NA-004 and 99 NA- 006, dated May 5, 1999.

Issued: June 28, 2010 Effective: June 29, 2010 By W. Karl Wardin, Regional Vice President - Regulatory 225 West Randolph Street, Chicago, Illinois 60606 ATT TN IW-10-0003 Illinois Bell AT&T Tariff ILL. C.C. NO. 22 Telephone Company Part 23 Section 2

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 9 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont'd)

3.4 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

3.4.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

99 NA-009 March 26, 2000 Compass Telecommunications, Inc. 99 NA-010 April 7, 2002 Northpoint Communications, Inc. 99 NA-011 April 23, 2001 Now Communications, Inc. 99 NA-013 April 19, 2002 Selective Royal Corporation 99 NA-015 May 10, 2002 MetroMedia Fiber Network Services, Inc. 99 NA-014 April 30, 2001 Direct-Tel USA LLC 99 NA-022 June 26, 1999 DSLnet Communications, LLC 99 NA-023 June 26, 1999 MTCO Communications, Inc. 99 NA-024 May 11, 2001 AirTouch Paging 99 NA-030 April 22, 2002 Net-Tel Corporation 99 NA-028 September 10, 1998 CCCIL, Inc. d/b/a CONNECT! 99 NA-031 August 6, 2001 Nextel West Corp. 99 NA-034 July 2, 2001 Southwestern Bell Mobile Systems, Inc. d/b/a Cellular One-Chicago 99 NA-033 January 14, 2000 Broadspan Communications, Inc. d/b/a Primary Network Communications 99 NA-035 January 13, 2000 Adams TelSystems, Inc. 99 NA-036 January 13, 2000 Essex Telcom, Inc. 99 NA-037 August 24, 2001 Ameritech Advanced Data Services of Illinois, Inc. 99 NA-038 July 16, 2002 Norlight 99 NA-040 September 29, 2001 PrePaid Local Access 99 NA-042 September 9, 2000 Globalcom 99 NA-055 October 10, 2001 Suretel 99 NA-057 November 7, 2002 Chatham Beepers 99 NA-046 July 13, 2000 Primeco Personal Communications LP 99 NA-048 October 4, 2002 Prism Communications Services, Inc. 99 NA-059 April 22, 2000 NOW Communications, Inc. 99 NA-060 April 22, 2000 NOW Communications, Inc.

Pursuant to orders of Ill. C.C. in Dockets 99 NA-046, 99 NA-048, 99 NA-059/060/061 Consolidated, dated January 26, 2000.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 10 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont'd)

3.4 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

3.4.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

99 NA-053 August 30, 2002 Mebtel Integrated Communications Solutions, LLC 99 NA-058 August 17, 2001 JATO Communications Corp. 99 NA-056 July 16, 2002 ICG Telecom Group, Inc. 99 NA-067/ July 16, 2002 Allegiance Telecom of Illinois, Inc. 069/070 (Consolidated) 99 NA-068 April 21, 2002 Hyperion Communications of Illinois, Inc. 00-0055 January 2, 2001 Arch Paging, Inc. 00-0056 December 20, 2002 Pathnet 00-0123 December 15, 2001 GTE Wireless of the Midwest, Inc. 00-0171 March 10, 2001 Weblink Wireless, Inc. 00-0254 May 1, 2001 Comm South Co. Inc. 00-0289 May 26, 2001 Vectris Telecom, Inc. 00-0288 January 14, 2002 USA Quick Phone, Inc. 00-0315 August 17, 2001 Rhythms Links, Inc. 00-0309 February 7, 2002 Metrocall, Inc. 00-0334 March 11, 2001 essential.com Inc. 00-0316 January 13, 2002 CoreComm Illinois, Inc. 00-0449 February 11, 2005 01 Communications of Illinois, Inc. 00-0477 September 9, 2001 Village Utility, Inc. 00-0363 August 17, 2001 2nd Century Communications, Inc. 00-0409 August 6, 2001 NPCR, Inc. d/b/a Nextel Partners 00-0388 October 2, 2001 Computer Business Sciences, Inc. 00-0450 May 30, 2001 New Edge Network, Inc. 00-0404 June 25, 2001 Phone-Link, Inc. 00-0448 July 17, 2001 Bullseye Telecom 00-0406 January 13, 2002 Egix 00-0418 January 14, 2002 Supra 00-0433 May 16, 2001 American Fiber Networks, Inc. 00-0423 May 31, 2001 MGC Communications, Inc. 00-0412 July 5, 2001 Camarato Distributing, Inc. 00-0447 August 3, 2001 Omniplex Communications Group

Pursuant to orders of Ill. C.C. in Dockets 00-0433, 00-0423, 00-0412 and 00-0447 dated September 7, 2000, August 9, 2000, July 19, 2000 and August 15, 2000.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 11 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont'd)

3.4 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

3.4.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier 00-0419 January 14, 2002 Z-Tel Communications, Inc. 00-0424 November 25, 2001 Telenet 00-0458 January 14, 2002 Broadband Office Communications, Inc. 00-0499 June 25, 2001 Home TeleNetworks, Inc. 00-0500 August 16, 2001 Delta Phones, Inc. 00-0547 August 13, 2001 Maverix.net. Inc. 00-0543 December 21, 2002 MVX.com Communications 00-0602 September 3, 2001 Fairpoint Communications 00-0526 August 19, 2003 Focal 00-0572 July 16, 2002 Gabriel Communications, Inc. 00-0590 September 12, 2001 Servisense.com. Inc. 00-0637 March 10, 2001 TSR Wireless LLC 00-0630 October 1, 2001 HJN Telecom 00-0639 September 20, 2001 CelluPage Systems 00-0631 August 6, 2001 Telecorp Communications 00-0696 June 26, 2001 TDS Metrocom 00-0692 October 30, 2001 Essex Communications d/b/a eLEC Comm. 00-0638 October 31, 2001 Access One, Inc. 00-0706 November 16, 2001 Vitts Networks, Inc. 00-0755 September 24, 2001 Talk.com Holding, Inc. 00-0684 August 17, 2001 Rhythms Links f/k/a Accelerated 00-0698 March 14, 2001 @Link Networks, Inc. 00-0697 April 21, 2002 Urban Media 00-0746 November 26, 2001 Maxcess, Inc. 00-0776 December 20, 2001 Navigator 00-0751 December 18, 2001 AmeriVoice 00-0761 October 14, 2002 Cook Inlet/Voicestream 00-0775 December 25, 2001 National PrePaid 01-0062 July 16, 2002 Novacon, LLC 01-0076 August 19, 2003 Payphone Services, Inc. 01-0190 May 31, 2003 Level 3 Communications 01-0187 August 17, 2001 Peak Communications

Pursuant to orders of Ill. C.C. in Dockets 01-0062, 01-0076, 01-0190, 01-0187 and 01-0193 dated March 21, 2001 and March 27, 2001.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 12 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont'd)

3.4 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

3.4.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier 01-0060 November 21, 2001 Aquis Communications, Inc. 01-0063 February 5, 2002 PaeTec Communications, Inc. 01-0070 August 1, 2001 TGEC Communications Corp. 01-0055 January 25, 2002 Illinois Telephone Corp. 01-0112 March 1, 2002 Preferred Carriers Services, Inc. d/b/a Phones for All 01-0137 February 28, 2002 Now Communications 01-0138 January 14, 2002 TCG Illinois and TCG Chicago 01-0059 April 21, 2002 Looking Glass Networks, Inc. 01-0061 October 10, 2001 NuStar Telephone Company 01-0303 March 8, 2002 Camarato Distributing 01-0289 April 19, 2002 IP Voice Communications 01-0290 January 10, 2002 ProCom International 01-0330 April 2, 2002 1-800-Reconex, Inc. 01-0335 April 10, 2002 Telicor, Inc. 01-0329 June 11, 2002 New Access, LLC. 01-0407 April 19, 2003 RCN Telecom of Illinois 01-0408 May 6, 2002 Midwestern Telecom 01-0437 August 19, 2003 Globalcom, Inc. 01-0441 April 7, 2002 Qwest Communications Corporation 01-0463 April 19, 2002 Network IP, LLC. 01-0483 August 27, 2002 Emergent Communications 01-0484 July 16, 2002 Vertex Broadband Corporation 01-0538 January 13, 2002 El Paso Networks, LLC 01-0464 August 19, 2003 Cbeyond Communications 01-0475 May 4, 2002 Verizon Select Services f/k/a GTE Communications Corporation 01-0481 November 1, 2001 AT&T Wireless PCS, LLC 01-0486 March 28, 2002 DMJ Communications, Inc. 01-0506 August 19, 2003 Global Eyes Telecommunications 01-0507 July 16, 2002 Stonebridge 01-0510 November 29, 2001 Heartland Communications 01-0511 May 14, 2002 Mpower Communications Corporation 01-0537 September 2, 2002 Metro Teleconnect 01-0545 September 9, 2002 Ciera Network Services, Inc. 01-0551 October 21, 2001 Global Crossing f/k/a Frontier 01-0550 June 28, 2002 Max-Tel Communications, Inc.

Pursuant to order of Ill. C.C. in Docket 01-0550 dated October 2, 2001.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 13 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont'd)

3.4 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

3.4.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

01-0543 December 21, 2002 QuantumShift Communications, Inc. f/k/a MVX.COM Communications, Inc. 01-0544 August 12, 2002 NOS Communications, Inc. 01-0547 July 13, 2002 Chicago 20 MHZ LLC as successor in Chicago MTA to PrimeCo PCS 01-0567 August 19, 2003 US Ave-Tel, Inc. 01-0570 August 21, 2002 CI², Inc. 01-0612 May 1, 2003 TDS Metrocom, Inc. 01-0521 August 1, 2003 Verizon Wireless 01-0596 August 27, 2002 Digital Telecommunications, Inc. 01-0631 May 16, 2002 Telseon Carrier Services, Inc. 01-0660 November 28, 2002 OnePoint Communications Illinois LLC d/b/a Verizon Avenue Corp. 01-0617 October 10, 2002 IG2, Inc. 01-0627 May 31, 2003 MTCO Communications, Inc. 01-0648 July 16, 2002 Egix Networks Services, Inc. 01-0649 July 17, 2002 Bitwise Communications, Inc. 01-0781 December 24, 2002 Ameritech Advanced Data Services of Illinois 01-0681 August 19, 2003 XO Illinois, Inc. 01-0800 January 30, 2003 Budget Phone, Inc. 01-0820 January 15, 2003 Telecents Communications, Inc. 01-0789 August 19, 2003 Global TelData, Inc. 01-0802 August 19, 2003 Illinois IntraNetwork, Inc. 01-0810 December 10, 2002 B&S Telecom, Inc. 01-0788 August 21, 2002 PNG Telecommunications, Inc. d/b/a PowerNet Global Communications 01-0799 December 20, 2002 Preferred Carrier Services, Inc. 01-0831 March 3, 2003 American Cellular Corporation and Dobson Communications Corporation 01-0822 November 15, 2003 Valley Cellular RSA2, Inc. 01-0823 December 3, 2003 NPCR d/b/a Nextel Partners

Pursuant to orders of Ill. C.C. in Dockets 01-0822 and 01-0823 dated March 5, 2002.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 14 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont'd)

3.4 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

3.4.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

01-0821 January 10, 2003 Var-Tec Telecom, Inc. 01-0834 December 6, 2002 RVP Fiber Company, LLC 02-0011 August 27, 2002 Americom. Inc. 02-0095 July 29, 2003 Norlight Telecommunications 02-0105 February 26, 2003 Bullseve Telecom, Inc. 02-0119 February 6, 2003 Weston Telecom, LLC d/b/a Easton Telecom Services 02-0030 January 9, 2003 Globcom, Inc. 02-0031 January 29, 2003 Max-Tel Communications, Inc. 02-0150 March 10, 2003 Network Services 02-0157 February 15, 2004 Sprint Communications Co. LP 02-0051 October 30, 2003 TMP Corporation 02-0052 November 2, 2002 CAT Communications International, Inc. d/b/a CCI 02-0198 May 9, 2003 Ernest Communications, Inc. 02-0110 March 5, 2003 Quick-Tel Communications, Inc. 02-0111 October 18, 2002 Truly Clear Communications, Inc. 02-0145 March 28, 2003 Clearwave Communications 02-0186 May 31, 2003 TalkingNets Holding, LLC 02-0187 March 21, 2003 Accutel of Texas, Inc. d/b/a 1-800-4-A-Phone 02-0230 June 23, 2004 McLeodUSA Telecommunications Services, Inc. 02-0128 May 31, 2003 DSLnet Communications, LLC 02-0141 May 31, 2003 Lightwave Communications, LLC 02-0144 February 28, 2004 Iowa Wireless Services, LP

Pursuant to orders of Ill. C.C. in Dockets 02-0191, 02-0192, 02-0204, 02-0218 and 02-0279 dated May 22, 2002

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 15 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont’d)

3.4 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont’d)

3.4.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

02-0211 May 21, 2003 Premier Network Services, Inc. 02-0219 May 27, 2003 Snappy Phone of Texas, Inc. 02-0220 May 20, 2003 Wings Communications, Inc. 02-0191 March 11, 2003 Universal Telecom, Inc. 02-0192 February 19, 2004 Cellular Properties, Inc. 02-0204 May 31, 2003 Peak Communications, Inc. 02-0218 June 4, 2003 Egix Network Services, Inc. 02-0279 June 18, 2003 Synopsis Communications 02-0245 July 10, 2002 Quality Telephone, Inc. 02-0246 May 14, 2003 MOR Communications, LLC 02-0304 May 22, 2003 Stonebridge Communications, Inc. 02-0306 April 22, 2003 Local Line America, Inc. 02-0307 May 31, 2003 Winstar Communications, Inc. 02-0353 August 19, 2003 El Paso Networks, LLC 02-0354 June 17, 2003 Ascendtel, LLC 02-0355 July 1, 2003 Excel Telecommunications, Inc. 02-0385 July 16, 2002 Integrated Communications Consultant, Inc. d/b/a ICCI 02-0386 May 29, 2003 First Communications, LLC 02-0414 August 29, 2003 North County Communications, Inc. 02-0439 August 18, 2003 Phone-Link, Inc. 02-0454 February 14, 2003 Multi Computer Systems, Inc. 02-0520 September 10, 2003 Equivoice, LLC 02-0468 September 2, 2003 CommSouth Companies, Inc. 02-0488 January 10, 2003 NOS Communications, Inc. 02-0496 August 7, 2003 Suretel, Inc. d/b/a Sure-Tel, Inc. 02-0503 August 19, 2003 Williams Communications, LLC 02-0513 May 1, 2003 IlliCom Telecommunications, Inc. 02-0537 September 29, 2003 CAT Communications International, Inc. 02-0514 September 28, 2003 Nexus Communications, Inc. 02-0515 September 8, 2003 Navigator Telecommunications, LLC 02-0522 June 27, 2003 New Access Communications, LLC 02-0548 February 15, 2004 Digital Teleport, Inc. 02-0650 October 29, 2003 Cordia Communications Corporation 02-0654 November 7, 2003 Easton Telecom Services, LLC 02-0676 November 19, 2003 KBS Computer Services, Inc. 02-0695 December 11, 2003 Delta Phones, Inc. 02-0775 December 30, 2003 Talk Unlimited Now, Inc.

Pursuant to order of Ill. C.C. in Docket 02-0775 dated February 5, 2003.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 16 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont'd)

3.4 Agreements with Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996/1/ (cont’d)

3.4.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

02-0782 October 23, 2003 Choctaw Communications LC d/b/a Smoke Signal Communications

02-0789 November 6, 2003 Midwestern Telecommunications, Inc.

02-0833 August 30, 2003 Madison River Communications f/k/a Mebtel Communications Solutions, LLC

03-0015 January 1, 2005 Grafton Technologies, Inc.

03-0016 November 6, 2003 Grafton Technologies, Inc.

03-0017 October 28, 2003 Grafton Technologies, Inc.

02-0867 May 1, 2003 SNG Communications, LLC

03-0063 June 23, 2004 Royal Phone Company, LLC

03-0089 April 3, 2005 Arch Wireless Operating Company

03-0065 January 19, 2005 Oneida Network Services, Inc.

03-0072 March 1, 2004 MLM Telecommunications, Inc.

03-0074 May 31, 2003 Teligent Services, Inc.

03-0101 March 16, 2004 QuantumShift Communications, Inc.

03-0103 June 23, 2004 Franklin Square Communications, Inc.

03-0102/ 03- February 18, 2004 Line 1 Communications, LLC d/b/a Direct Line 0244 (Cons.)

/1/ Pursuant to orders of Ill. C.C. in Dockets 03-0102/03-0244 (Cons.), 03-0111, 03-0172 and 03- 0234 dated May 7, 2003.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 17 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont’d)

3.4 Agreements with Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996/1/ (cont’d)

3.4.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

03-0111 March 10, 2003 ICG Communications, Inc

03-0172 April 7, 2004 Kentucky Data Link, Inc. d/b/a Cinergy Networks

03-0234 May 14, 2004 nii Communications, LTD.

03-0236 June 23, 2004 Allegiance Telecom of Illinois, Inc.

03-0242 March 15, 2004 SOS Telecom, Inc.

03-0250 June 2, 2004 Personal Office, Inc.

03-0252 June 18, 2005 Heartland Communications

03-0251 May 25, 2004 Verizon Select Services, Inc.

03-0256 June 4, 2004 Alticomm, Inc.

03-0284 February 15, 2004 ICG Telecom Group, Inc.

03-0262 June 23, 2004 Comcast Phone of Illinois, LLC

03-0296 April 9, 2004 Global NAPs Illinois, Inc.

03-0297 June 10, 2004 Allure Communications, LLC

03-0351 June 2, 2004 Broadview Networks, Inc.

03-0353 December 10, 2004 AT&T Wireless PCS, LLC

03-0352 July 15, 2004 CloseCall America, Inc.

03-0389 July 15, 2004 Cypress Communications Operating Co. Inc.

03-0404 July 6, 2004 EZ Talk Communications, LLC

03-0408 July 14, 2004 Access One, Inc.

/1/ Pursuant to orders of Ill. C.C. in Dockets 03-0352, 03-0389, 03-0404 and 03-0408 dated August 12, 2003 and September 4, 2003.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 18 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont’d)

3.4 Agreements with Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996/1/ (cont’d)

3.4.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

03-0457 February 14, 2004 Access2Go, Inc. 03-0482 March 24, 2004 ACN Communications Services, Inc. 03-0500 August 10, 2004 dPi Teleconnect, LLC 03-0565 February 15, 2004 CityNet Illinois, LLC 03-0578 May 23, 2004 LDMI Telecom, Inc. 03-0509 February 15, 2004 Metro Teleconnect Company, Inc. 03-0517 October 31, 2005 A Beep, LLC 03-0569 November 30, 2004 Sprint Spectrum, LP 03-0577 October 27, 2004 AmeriVoice Telecom d/b/a Black Telecom USA Poltel, LLC 03-0585 November 23, 2004 American Farm Bureau, Inc. d/b/a The Farm 03-0656 June 2, 2004 Bureau Connection 03-0572 April 28, 2004 Cinergy Communications Company 03-0586 November 16, 2004 Pacific Centrex Services, Inc. 03-0589 November 23, 2004 King City Telephone, LLC 03-0584 March 13, 2004 Ameritel Illinois, Inc. 03-0634 June 23, 2004 OnFiber Carrier Services, Inc. 03-0680 August 5, 2004 Grid4 Communications, Inc. 03-0652 November 30, 2005 Advantage Paging, Inc. 03-0635 November 26, 2004 DLS Communication Services, Inc. 03-0679 November 15, 2004 Ernest Communications, Inc. 03-0716 January 1, 2007 TCG Illinois and TCG Chicago 03-0717 January 1, 2007 AT&T Communications of Illinois, Inc. 03-0729 February 15, 2004 Neutral Tandem-Illinois, LLC 03-0778 August 30, 2006 Sage Telecom, Inc. 04-0003 February 24, 2005 Global Connection Inc. of America 03-0783 December 28, 2004 Granite Telecommunications, LLC 04-0035 July 2, 2004 Salmon PCS, LLC 04-0018 June 23, 2004 Forte Communications, Inc. 04-0046 June 23, 2004 Madison River Communications, LLC 04-0048 February 15, 2005 Midwest Telecom of America, Inc. 04-0074 June 23, 2004 Lightspeed Telecom, LLC 04-0098 June 23, 2004 CimCo Communications, Inc. 04-0095 June 23, 2004 IDT America, Corp. 04-0097 June 23, 2004 Access One, Inc.

/1/ Pursuant to orders in Ill. C.C. in Dockets 04-0095 and 04-0097 dated May 5, 2004.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 19 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont’d)

3.4 Agreements with Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996/1/ (cont’d)

3.4.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

04-0179 April 23, 2005 Think 12 Corporation d/b/a Hello Depot 04-0190 March 18, 2005 Easton Telecom Services, LLC 04-0201 June 23, 2004 CAT Communications International, Inc. 04-0244 February 18, 2005 BAK Communications, LLC 04-0245 April 15, 2005 Swetland Internet, Inc. 04-0311 June 18, 2005 Ameritech Mobile Services, Inc. d/b/a SBC Paging 04-0345 December 9, 2004 Primo Communications, Inc. 04-0348 March 25, 2005 Grafton Telephone Co. 04-0363 February 4, 2007 Vertex Broadband Corporation 04-0396 January 14, 2007 PNG Telecommunications, Inc. 04-0436 September 6, 2006 United Communications Systems, Inc. d/b/a Call One 04-0420 February 4, 2007 Cbeyond Communications, LLC 04-0462 May 19, 2005 Trans National Communications International, Inc. 04-0463 January 1, 2007 Focal Communications Corporation of Illinois 04-0473 August 30, 2006 Charter Fiberlink-Illinois, LLC 04-0552 February 4, 2007 Globcom, Inc. 04-0645 February 4, 2007 Comcast Phone of Illinois, LLC d/b/a Comcast Digital Phone 04-0724 November 28, 2005 Lee’s Communications, LLC 04-0807 March 9, 2008 Norlight Telecommunications, Inc. 05-0102 April 27, 2006 Ameritech Advanced Data Services of Illinois, Inc. 05-0168 June 1, 2007 United States Cellular Operating Company of Chicago, LLC; USCOC of Central Illinois, LLC; USCOC of Illinois RSA #1, LLC; USCOC of Illinois RSA #4, LLC; USCOC of Rockford, LLC 05-0283 May 1, 2008 MCImetro Access Transmission Services, Inc. and MCI WorldCom Communications, Inc. 05-0177 December 31, 2006 Level 3 Communications, L.L.C.

/1/ Pursuant to orders in Ill. C.C. 05-0102, 05-0168, 05-0283 and 05-0177.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 20 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont’d)

3.4 Agreements with Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996/1/ (cont’d)

3.4.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

05-0280 July 8, 2006 Digital Network Access Communications, Inc. 05-0371 August 9, 2006 Metropolitan Telecommunications of Illinois, Inc. d/b/a MetTel 05-0435 August 25, 2006 Expedient Carrier Services, LLC 05-0458 January 1, 2007 U.S. Fiber LLC 05-0624 September 9, 2006 Lightyear Network Solutions, LLC 05-0633 November 3, 2006 Camarato Distributing, Inc. 05-0634 December 31, 2006 EGIX Network Services, Inc. 05-0650 February 4, 2007 Aero Communications, LLC 05-0664 February 4, 2007 TelNet Worldwide-IL, LLC 05-0677 December 15, 2006 Megacomm Corporation d/b/a MegaPage 05-0685 January 10, 2007 PT Communications, Inc. 05-0711 January 16, 2007 VinaKom, Inc. d/b/a VinaKom Communications 05-0721 January 1, 2007 Spectrotel, Inc. 05-0807 May 1, 2008 IBFA Acquisition Company, LLC d/b/a Farm 06-0088 February 4, 2007 Bureau Connection 05-0810 December 7, 2006 Novacon Holdings LLC 05-0821 February 1, 2008 Airdis, LLC d/b/a Airdis Telecom 06-0149 February 4, 2007 Southern Illinois RSA Partnership 06-0181 January 1, 2007 CMC Telecom, Inc. 06-0288 June 1, 2004 Pac-West Telecomm, Inc. Illinois Valley Cellular RSA 2-I Partnership; Illinois Valley Cellular RSA 2-II Partnership; Illinois Valley Cellular RSA 2-III Partnership 06-0365 February 4, 2007 Clear Rate Communications, Inc. 06-0397 August 6, 2007 Computer View, Inc. 06-0405 July 26, 2007 Network PTS, Inc. 06-0419 February 4, 2007 New Millennium Telecommunications, Inc. 06-0424 July 19, 2007 Trans National Communications International, Inc. 06-0450 May 1, 2008 Insight Phone of Illinois, LLC d/b/a Insight Phone 06-0471 August 20, 2007 Electronic Engineering Co

/1/ Pursuant to orders in Ill. C.C. 06-0365, 06-0397, 06-0405, 06—419, 06-0424, 06-0450 and 06- 0471.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 21 SECTION 2 - Ameritech End Office Integration Service

3. COMPENSATION (cont’d)

3.4 Agreements with Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996/1/ (cont’d)

3.4.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

06-0479 September 28, 2007 Future Communication, Inc. 06-0500 September 18, 2007 YMax Communications Corp 06-0574 May 1, 2008 Illinois Telephone Corporation 06-0546 February 4, 2007 SOS Telecom, Inc. 06-0613 March 11, 2007 Access One, Inc. 06-0629 September 18, 2009 Woodhull Telephone Company 06-0630 May 1, 2008 IQ Telecom, Inc.

/1/ Pursuant to orders in Ill. C.C. 06-0479, 06-0500, 06-0574, 06-0546, 06-0613, 06-0629 and 06- 0630.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 22 SECTION 2 - Ameritech End Office Integration Service

4. TERMS AND CONDITIONS

4.1 Responsibilities of the Company

A. Upon request by a carrier, the Company will work cooperatively with the carrier to enable the carrier to provide the carrier’s end users access to 911 where available.

B. The Company will provide the carrier unbundled access to its Signaling System 7 network for call setup, where requested by the carrier and where facilities permit (see Ordering Procedures following).

C. The Company will provide unassigned NXX codes to the carrier, under Inter-Carrier Compatibility Forum (ICCF) developed CO Code assignment guidelines, until this function is performed by a third party agency.

D. The Company will assign a Common Language Location Identifier (CLLI) code to each carrier end office switch to be integrated into the public network consistent with procedures used for CLLI code assignment to its own switches until this function is performed by a third party agency. The code must be listed in the Local Exchange Routing Guide.

E. Interconnection will be at least equal in quality and functionality to that provided by the Company to itself or to any subsidiary, affiliate, or any other party to which the Company provides interconnection. See Part 2, Section 10 of this tariff for the objective performance characteristics, how they are measured, and remedies for inferior service.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 23 SECTION 2 - Ameritech End Office Integration Service

4. TERMS AND CONDITIONS (cont’d)

4.2 Responsibilities of the Telecommunications Carrier

A. The carrier is responsible for administering NXX numbers assigned to it.

B. The carrier is responsible for obtaining Local Exchange Routing Guide listings of CLLI codes assigned to its switches.

C. The carrier is responsible for obtaining transport facilities sufficient to handle traffic originating on its network and terminating on the Company's network or transiting the Company’s network to a subtending third party carrier. The carrier may provide the facilities itself, order them through a third party, or order them from the Company.

D. The carrier is responsible for requesting interconnection to the Company’s Common Channel Signaling (CCS) network, where SS7 signaling on the trunk group(s) is desired (see Ordering Procedures in this Section).

E. The carrier is responsible to ensure its network, switch(es), and traffic are compatible with the Company's public switched network as defined by technical references and publications (see Technical References in this Section).

F. The carrier is responsible for the exchange of local switched traffic between its network and other carriers. If the carrier so desires, traffic between its network and other carriers can be obtained through the use of terminating Feature Group D service.

G. The carrier is responsible for notifying any third party carrier which it terminates traffic to.

H. If the traffic volumes between a carrier and any third party central office switch at any time exceeds the CCS busy hour equivalent for one (1) DS1 (500 ccs), the parties shall, within sixty (60) days after such occurrence, establish new direct trunk groups to the applicable end office(s).

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 24 SECTION 2 - Ameritech End Office Integration Service

4. TERMS AND CONDITIONS (cont’d)

4.2 Responsibilities of the Telecommunications Carrier (cont’d)

I. A Point of Interconnection (POI) is a point in the network where the Parties deliver interconnection traffic to each other, and also serves as a demarcation point between the facilities that each Party is responsible to provide. Telecommunications carriers may establish a POI with the Company at any technically feasible point within the incumbent Company’s network. Carriers may choose to exchange traffic at a single POI for the entire LATA, or may establish multiple POIs in the LATA.

A telecommunications carrier may choose to exchange local telecommunications traffic at a single POI for the entire LATA. A telecommunications carrier may elect a single POI at any technically feasible point within the incumbent Company’s network.

Additionally, a telecommunications carrier may elect that each carrier bear responsibility for the cost of facilities on its side of a single POI. A telecommunications carrier may therefore elect that both it, the requesting carrier, and the Company bear financial responsibility for the facilities, trunking and equipment on their respective sides of the POI. In such circumstances, the requesting carrier may lease facilities, trunking and/or equipment on its side of the POI from Company, but in such cases the Carrier remains financially responsible to the Company for establishing facilities on its, the requesting carrier’s, side of the POI. The financial responsibility for establishing interconnection facilities is independent of Carrier and Company reciprocal compensation responsibilities. Therefore, while the Company may assess applicable reciprocal compensation charges on the Carrier for transport and termination of local traffic on the Company’s side of the single POI, the Company will assess no additional charges on Carrier for transport on Company’s side of the POI. Similarly, while Carrier may assess applicable reciprocal compensation charges on the Company for transport and termination of local traffic on the Carrier’s side of the single POI, the Carrier will assess no additional charges on the Company for transport on Carrier’s side of the POI.

The terms and conditions described in the preceding paragraph that are available to telecommunications carriers that elect to exchange local telecommunications traffic at a single POI for the entire LATA also extend to telecommunications carriers that elect to exchange local telecommunications traffic at multiple POIs in the LATA.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 25 SECTION 2 - Ameritech End Office Integration Service

4. TERMS AND CONDITIONS (cont’d)

4.3 Responsibilities of the Carrier and the Company

A. The parties shall exchange technical descriptions and forecasts of their interconnection and traffic requirements in sufficient detail to establish the interconnections necessary to assure traffic completion to and from all end user customers in their respective designated service areas. The carrier, for purposes of ubiquitous connectivity, network diversity, and alternate routing, must be connected to at least one access tandem switch, and if a local tandem switch is present, must also be connected to at least one local tandem switch and may be connected to additional end offices or tandems via standard interoffice trunking connections. If the traffic volumes between any two (2) (companies’ or third party’s) central office switches at any time exceeds the CCS busy hour equivalent for one (1) DS1 (500 ccs), the parties shall, within sixty (60) days after such occurrence, establish new direct trunk groups to the applicable end office (s).

B. Each party is individually responsible to provide facilities within its network which are necessary for routing, transporting, measuring, and billing traffic from the other party's network and for delivering such traffic to the other party's network in the standard format compatible with the Company's public switched network as stated in Technical References found in this Section and to terminate the traffic it receives in that standard format to the proper address on its network.

C. Each party is only responsible for the quality of services and facilities it provides. However, where requested, and to the extent of technical feasibility, the parties will cooperate to determine the performance of their respective networks and will implement joint network management controls to further overall service integrity. Where such monitoring is not technically feasible on the part of the carrier, the Company will perform these functions on its behalf, if technically feasible for the Company, subject to mutually agreeable charges.

Pursuant to Second Interim Order in Ill. C.C. Docket Nos. 96-0486/0569 Consolidated, dated February 17, 1998.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 26 SECTION 2 - Ameritech End Office Integration Service

4. TERMS AND CONDITIONS (cont’d)

4.3 Responsibilities of the Carrier and the Company (cont’d)

D. The carrier and the Company are each solely responsible for participation in and compliance with national network plans, such as The National Network Security Plan, and The Emergency Preparedness Plan.

E. The carrier and the Company are not responsible for providing services to each other's end users or the end users of subtending third party carriers; however, the parties may enter into agreements to provide exchange support functions to each other (e.g., 911, operator services, directory assistance, Telecommunications Relay Service, etc.). The carrier may provide the facilities itself, order them through a third party, or order them from the Company.

F. The carrier and the Company must provide Calling Party Number, or Local Routing Numbers assigned to each carriers own switch where facilities permit.

G. Where the subscribers of basic exchange service provided by one party utilize the Public Announcement Service (PAS) provided by the other party, the party providing the basic exchange service is responsible for supplying the requisite billing information to the PAS provider to enable the PAS provider to bill the end user directly for the PAS related charges.

Pursuant to Second Interim Order in Ill. C.C. Docket Nos. 96-0486/0569 Consolidated, dated February 17, 1998.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 27 SECTION 2 - Ameritech End Office Integration Service

4. TERMS AND CONDITIONS (cont’d)

4.4 Liabilities

A. Liabilities Between Parties

Liability of the Company to the carrier including the originating carrier with respect to transiting, and the carrier to the Company, resulting from any and all causes, shall not exceed the liability of the Company as set forth herein and in other Sections of this tariff. Specifically, the Company and the carrier shall each be liable only for the service(s) or facility(ies) that each provides. Such liability shall not exceed the amounts paid by the carrier or the Company for the period of time during which the Company or carrier failed to provide the service(s) or facility(ies). The Company and carrier shall each individually also be liable to each other for any property damage caused by the negligence of its employees, agents or subcontractors. In no case shall either the Company or the carrier be liable to the other for any indirect, special or consequential damages, including, but not limited to, economic loss, lost business or profits, whether foreseeable or not, and regardless of notification by the other party of the possibility of such damages. The Company and the carrier agree that this allocation of risk and liability is fair and reasonable.

Pursuant to Second Interim Order in Ill. C.C. Docket Nos. 96-0486/0569 Consolidated, dated February 17, 1998.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 28 SECTION 2 - Ameritech End Office Integration Service

4. TERMS AND CONDITIONS (cont’d)

4.4 Liabilities (cont’d)

B. Liabilities To Other Parties

The carrier, including the originating carrier with respect to transiting and the Company shall each be responsible only for the service(s) and facility(ies) it provides, and neither shall bear any responsibility for the service(s) and facility(ies) provided by the other or a third party. The carrier and the Company shall indemnify, defend and hold each other harmless for and against any claim, loss or damage, asserted by any person related to or arising out of the acts or omissions of the other party or by customers, employees or agents of the other party against whom indemnification is sought. In such cases, the indemnifying party shall reimburse the other for all of the non-defending party’s costs, expenses or judgments including attorney’s fees. Each party agrees to notify the other promptly of any matters for which the foregoing indemnity may apply. If notified in writing of any action or claim for which a party is to provide indemnity, the other party shall, without limitation, defend those actions or claims at its expense and pay the costs and damages and attorney’s fees awarded against the non-defending party in any such action, provided that the defending party shall have the exclusive right to control and conduct the defense and settlement of any such actions or claims. The parties agree to do all acts and things, at the defending party’s expense, that may be reasonably required by the non-defending party in connection with such settlement or defense.

Pursuant to Second Interim Order in Ill. C.C. Docket Nos. 96-0486/0569 Consolidated, dated February 17, 1998.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 29 SECTION 2 - Ameritech End Office Integration Service

4. TERMS AND CONDITIONS (cont’d)

4.5 Operation and Maintenance

The Company and carrier are each individually responsible for the installation, operation, and maintenance of equipment and facilities provided by it for AEOIS, subject to compatibility requirements and the cooperative testing and monitoring provisions cited in Responsibilities of the Carrier and the Company, found in this Section, and the specific operation and maintenance provisions for equipment and facilities used in providing AEOIS under Option 4 (available options, including option 4, as shown in 5.1 B following).

4.6 Cooperative Engineering and Administration Functions

The Company and carrier will perform functions for each other which are reasonably necessary to engineer, install, maintain, and administer the network established under AEOIS, without specific charge to each other, as cited in Section under Responsibilities of the Carrier and the Company. The Company will perform such functions that are not unique to AEOIS as described in other parts of this tariff, as appropriate.

4.7 The Company’s standard intervals for cross-connect services (as shown in Section 4 of this tariff) will be used for AEOIS Options 1, 2 and 4 (as shown in 5.1 following). The carrier will meet the same intervals for comparable installations, maintenance, joint testing, and repair of its facilities and services associated with or used in conjunction with AEOIS or will notify the Company of its inability to do so and will negotiate such intervals.

Pursuant to Second Interim Order in Ill. C.C. Docket Nos. 96-0486/0569 Consolidated, dated February 17, 1998.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 30 SECTION 2 - Ameritech End Office Integration Service

5. SERVICE DESCRIPTION

5.1 End Office Integration is effected by interconnecting trunk circuits of the carrier’s end office and/or tandem office switch to trunk circuits of the Company’s end office and/or tandem office switch. AEOIS uses one of three optional network configurations (designated as Options 1, 2 and 4), selected by the carrier. Options 1 and 2 use Company-provided transport between the locations for interconnecting switches; Option 4 uses carrier-provided or third-party leased transport between the locations for interconnecting switches. Figure 1 (as shown in 5.3 following)depicts AEOIS optional network configurations.

A. AEOIS Options 1 and 2

Linkage of networks under AEOIS Options 1 and 2 is established using certain of the Company's rates and regulations for cross-connect and local transport services (as referenced in Section 4 of this tariff) and the specific regulations of this Section which govern end office and/or tandem office integration.

Both LT1 and LT3 transport are provided by the Company, as requested by the carrier; however, LT3 transport must be demultiplexed at the Company end office or tandem office to individual LT1 channels for interconnection to the Company switch. Spare LT1 channels of the LT3 transport may be connected to other compatible services or to interconnection services at the request of the carrier (see Section 4 of this tariff for types of services or service components that can be connected). Rates and charges for those services or service components to be connected to the LT3 to LT1 multiplexer apply.

Interface of Company-provided transport at the carrier's end office location under AEOIS Option 1 is LT1 or LT3 electrical, as specified in TR-INS-000342, AEOIS Option 2 interface at the carrier’s Central Office location is LT3 optical, as specified in AM-TR-TMO-000072.

Pursuant to Second Interim Order in Ill. C.C. Docket Nos. 96-0486/0569 Consolidated, dated February 17, 1998.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 31 SECTION 2 - Ameritech End Office Integration Service

5. SERVICE DESCRIPTION (cont’d)

5.1 (cont’d)

B. AEOIS Option 4

Linkage of networks under AEOIS Option 4 is established using rates and regulations for Ameritech Collocation Services, as referenced in Section 4 of this tariff.

AEOIS Option 4 is a collocation arrangement. Cross-Connection between the carrier-provided facility and the Company end office and/or tandem office switch is governed by the rates and regulations of Collocation Services, as referenced in Section 4 of this tariff.

5.2 AEOIS is only available with SS7 signaling. When AEOIS is directly routed to an end office, only those valid NXX codes served by that end office may be accessed. When routed via a tandem office, only those valid Company NXX codes served by the end offices subtending that tandem may be accessed.

When routed via a Company tandem office to the end office(s) of a non-company carrier which subtends that tandem (“subtending carrier”), the Company’s intermediary transport and tandem switching of calls on behalf of the originating carrier to the subtending carrier is known as “transiting” as defined herein and will be provided to the originating carrier pursuant to terms and at rates set forth herein.

Transit service is the use of the Ameritech network to pass local and intraLATA toll traffic from the originating carrier’s switch to the switch of a subtending telecommunications carrier. Transit traffic is delivered over interconnection end office integration trunks at the tandem.

Pursuant to Second Interim Order in Ill. C.C. Docket Nos. 96-0486/0569 Consolidated, dated February 17, 1998.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 32 SECTION 2 - Ameritech End Office Integration Service

5. SERVICE DESCRIPTION (cont’d)

5.3 Figure 1

Company

Provided

Carrie C.O. Ameritech Facilitie r CO End Office or Tandem Office d LT1/LT3 Switch AEOIS e electri OPTIONS 1 cal m or LT3 AND 2 optical (Direct a handof Transport) f r c

Amerite h Interconnec tion Servic AEOIS OPTION 4 e End Office or Tandem Office Switch Cross- demarc Connections (DS1 Carrie Only) r

Provided

Facilitie

Option 3 is reserved by the Company for future use.

Pursuant to Second Interim Order in Ill. C.C. Docket Nos. 96-0486/0569 Consolidated, dated February 17, 1998.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 33 SECTION 2 - Ameritech End Office Integration Service

6. ORDERING PROCEDURES

6.1 Ordering procedures for AEOIS are described following:

A. AEOIS Options 1 and 2

AEOIS Options 1 and 2 use direct transport type facilities to interconnect the carrier switch to the Company end office and/or tandem office switch. Ordering procedures for Collocation Services, as referenced in Section 4 of this tariff.

B. AEOIS Option 4

AEOIS Option 4 is ordered under Collocation Services provisions, as referenced in Section 4 of this tariff.

C. Signaling - All Options

Ordering procedures for connection to SS7 are provided in Section 9 of this tariff.

D. Trunking - All Options

One-way interconnecting trunks are for local/non-local intraMSA switched traffic.

Pursuant to Second Interim Order in Ill. C.C. Docket Nos. 96-0486/0569 Consolidated, dated February 17, 1998.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 34 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES

7.1 AEOIS Options 1 and 2

Rates and charges for AEOIS Options 1 and 2 are the same as those for Switched Access Service, Ill. C.C. No. 21, Section 6.

Appropriate rates and charges may include the following:

A. Direct Routed or Tandem Routed Service

(1) Entrance Facility Per Point of Termination - LT-1 (1.544 Mbps) - LT-3 (44.736 Mbps)

(2) Direct Transport Channel Mileage Per Mile - LT-1 (1.544 Mbps) - LT-3 (44.736 Mbps)

(3) Direct Transport Channel Mileage Termination Per Point of Mileage Termination - LT-1 (1.544 Mbps) - LT-3 (44.736 Mbps)

B. Switched Transport Multiplexing Per Multiplexer - LT-3 to LT-1

C. Nonrecurring Charges

Nonrecurring charges associated with (1) and (2) preceding include charges for installation and rearrangement of individual trunk circuits as referenced in Section of this tariff.

Pursuant to Second Interim Order in Ill. C.C. Docket Nos. 96-0486/0569 Consolidated, dated February 17, 1998.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 35 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont'd)

7.2 AEOIS Option 4

Rates and Charges for AEOIS Option 4 are the same as those of Ameritech Collocation Service as referenced in Section 4 of this tariff.

7.3 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996

7.3.1 General

Ameritech has entered into Agreements with telecommunications carriers pursuant to Sections 251 and 252 of the Federal Telecommunications Act of 1996. Section 252(i) of the Act provides that Ameritech Illinois must make available any interconnection, service, or network element provided under such an agreement to any other requesting telecommunications carrier upon the same terms and conditions as those provided in the agreement. Ameritech Illinois' agreements have been filed with the Office of the Chief Clerk. The contracts available to takers of the service tariffed in this volume are:

Docket No. Expiration Date Contracting Carrier

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 36 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont'd)

7.3 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

7.3.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 37 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont'd)

7.3 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

7.3.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

97 NA-016 May 17, 1999 MFS Intelnet of Illinois Incorporated 97 PA-020 August 30, 1998 GTE North Incorporated 97 NA-020 /1/ McLeodUSA Telecommunications Services, Inc. 97 NA-022 June 27, 1998 GTE North Incorporated 97 PA-038 June 30, 1999 Ameritech Indiana 97 PA-039 June 27, 1998 Southwestern Bell Telephone Company 97 PA-040 June 30, 1999 U.S. West Communications, Inc. 97 NA-024 July 14, 1999 PrimeCo Personal Communications, L.P. 97 NA-028 April 22, 2002 KMC Telecom, Incorporated 97 NA-026 May 30, 1999 Sprint Spectrum, L.P. 97 NA-030 July 17, 2002 U.S. Xchange, L.L.C. 97 NA-032 May 7, 2000 MGC Communications, Incorporated 97 NA-029 July 7, 2000 Intermedia Communications, Incorporated 97 NA-034 September 12, 2000 Teligent, L.L.C. 97 NA-039 September 10, 1998 Nextlink Illinois, Inc. 97 NA-042 October 22, 1998 Frontier Local Services, Inc. 97 NA-041 September 15, 2000 MidCom Communications, Inc. 98 NA-005 May 5, 2000 GTE Communications Corporation 98 NA-006 November 11, 1999 Alton CellTelCo Cellular Corporation 98 NA-012 May 17, 1999 OCI Communications of Illinois, Inc.

/1/ Term of the Agreement is five years from service start date. Agreement was signed on June 16, 1997.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 38 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont'd)

7.3 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

7.3.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

98 NA-013 April 8, 2001 InterAccess Co. 98 NA-018 February 4, 1999 Teltrust Communications Services, Inc. 98 NA-014 May 5, 2001 21st Century Telecom of Illinois, Inc. 98 NA-015 April 30, 2001 Forte Communications, Inc. 98 NA-016 May 5, 2001 LCI International Telecom Corporation 98 NA-017 March 30, 2001 Optel (Illinois) Telecom, Inc. 98 NA-019 May 16, 1999 Level 3 Communications, L.L.C. 98 NA-020 October 28, 1999 Allegiance Telecom of Illinois, Inc. 98 NA-021 November 30, 1998 Dakota Services Limited 98 NA-022 June 5, 1999 Net-Tel Corporation 98 NA-023 June 15, 2001 Amica Wireless Phone Service, Inc. 98 NA-024 April 22, 2001 Digital Teleport, Inc. 98 NA-027 June 26, 2001 Covad Communications Company 98 NA-028 July 14, 1999 Pre-Paid Local Access Phone Company 98 NA-030 March 6, 1999 Comm South Companies 98 NA-031 July 31, 1999 Omnicall, Inc. 98 NA-034 August 10, 1999 United States Telecommunications, Inc. 98 NA-035 July 27, 1999 LDD, Inc. 98 NA-033 October 3, 2000 US West Interprise America, Inc. 98 NA-037 August 18, 2001 Accelerated Connections, Inc. 97 NA-025 July 23, 1999 Central Telephone Company of Illinois

98 NA-040 May 5, 2000 QST Communications, Inc. 98 NA-044 November 30, 2001 Iowa Wireless Services, LP 98 NA-043 October 28, 1999 Megs Inet, Inc. 99 NA-002 December 15, 2000 Topp Comm., Inc. 99 NA-004 October 28, 1999 Digital Pipeline Comm., Inc. 99 NA-006 March 11, 2001 Pagenet, Inc.

Pursuant to order of Ill. C.C. in Dockets 99 NA-002, dated April 21, 1999 and 99 NA-004 and 99 NA- 006, dated May 5, 1999.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 39 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont'd)

7.3 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

7.3.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

Pursuant to orders of Ill. C.C. in Dockets 99 NA-046, 99 NA-048, 99 NA-059/060/061 Consolidated, dated January 26, 2000.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 40 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont'd)

7.3 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

7.3.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

Pursuant to orders of Ill. C.C. in Dockets 00-0433, 00-0423, 00-0412 and 00-0447 dated September 7, 2000, August 9, 2000, July 19, 2000 and August 15, 2000.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 41 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont'd)

7.3 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

7.3.1 General (cont'd)

Pursuant to orders of Ill. C.C. in Dockets 01-0062, 01-0076, 01-0190, 01-0187 and 01-0193 dated March 21, 2001 and March 27, 2001.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 42 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont'd)

7.3 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

7.3.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier 01-0060 November 21, 2001 Aquis Communications, Inc. 01-0063 February 5, 2002 PaeTec Communications, Inc. 01-0070 August 1, 2001 TGEC Communications Corp. 01-0055 January 25, 2002 Illinois Telephone Corp. 01-0112 March 1, 2002 Preferred Carriers Services, Inc. d/b/a Phones for All 01-0137 February 28, 2002 Now Communications 01-0138 January 14, 2002 TCG Illinois and TCG Chicago 01-0059 April 21, 2002 Looking Glass Networks, Inc. 01-0061 October 10, 2001 NuStar Telephone Company 01-0303 March 8, 2002 Camarato Distributing 01-0289 April 19, 2002 IP Voice Communications 01-0290 January 10, 2002 ProCom International 01-0330 April 2, 2002 1-800-Reconex, Inc. 01-0335 April 10, 2002 Telicor, Inc. 01-0329 June 11, 2002 New Access, LLC. 01-0407 April 19, 2003 RCN Telecom of Illinois 01-0408 May 6, 2002 Midwestern Telecom 01-0437 August 19, 2003 Globalcom, Inc. 01-0441 April 7, 2002 Qwest Communications Corporation 01-0463 April 19, 2002 Network IP, LLC. 01-0464 August 19, 2003 Cbeyond Communications 01-0475 May 4, 2002 Verizon Select Services f/k/a GTE Communications Corporation 01-0481 November 1, 2001 AT&T Wireless PCS, LLC 01-0486 March 28, 2002 DMJ Communications, Inc. 01-0506 August 19, 2003 Global Eyes Telecommunications 01-0507 July 16, 2002 Stonebridge 01-0510 November 29, 2001 Heartland Communications 01-0511 May 14, 2002 Mpower Communications Corporation 01-0537 September 2, 2002 Metro Teleconnect 01-0545 September 9, 2002 Ciera Network Services, Inc. 01-0551 October 21, 2001 Global Crossing f/k/a Frontier 01-0550 June 28, 2002 Max-Tel Communications, Inc.

Pursuant to order of Ill. C.C. in Docket 01-0550 dated October 2, 2001.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 43 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont'd)

7.3 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

7.3.1 General (cont'd)

Docket No. Expiration Date Contracting Carrier

Pursuant to orders of Ill. C.C. in Dockets 01-0822 and 01-0823 dated March 5, 2002.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 44 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont'd)

7.3 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

7.3.1 General (cont'd)

Docket No. Contracting Carrier Expiration Date

Pursuant to orders of Ill. C.C. in Dockets 02-0191, 02-0192, 02-0204, 02-0218 and 02-0279 dated May 22, 2002

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 45 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont’d)

7.3 Agreements With Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996 (cont'd)

7.3.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

Pursuant to order of Ill. C.C. in Docket 02-0775 dated February 5, 2003.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 46 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont'd)

7.3 Agreements with Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996/1/ (cont’d)

7.3.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

02-0782 October 23, 2003 Choctaw Communications LC d/b/a Smoke Signal Communications

02-0789 November 6, 2003 Midwestern Telecommunications, Inc.

02-0833 August 30, 2003 Madison River Communications f/k/a Mebtel Communications Solutions, LLC

03-0015 January 1, 2005 Grafton Technologies, Inc.

03-0016 November 6, 2003 Grafton Technologies, Inc.

03-0017 October 28, 2003 Grafton Technologies, Inc.

02-0867 May 1, 2003 SNG Communications, LLC

03-0063 June 23, 2004 Royal Phone Company, LLC

03-0089 April 3, 2005 Arch Wireless Operating Company

03-0065 January 19, 2005 Oneida Network Services, Inc.

03-0072 March 1, 2004 MLM Telecommunications, Inc.

03-0074 May 31, 2003 Teligent Services, Inc.

03-0101 March 16, 2004 QuantumShift Communications, Inc.

03-0103 June 23, 2004 Franklin Square Communications, Inc.

03-0102/ 03- February 18, 2004 Line 1 Communications, LLC d/b/a Direct Line 0244 (Cons.)

/1/ Pursuant to orders of Ill. C.C. in Dockets 03-0102/03-0244 (Cons.), 03-0111, 03-0172 and 03- 0234 dated May 7, 2003.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 47 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont’d)

7.3 Agreements with Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996/1/ (cont’d)

7.3.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

03-0111 March 10, 2003 ICG Communications, Inc.

03-0172 April 7, 2004 Kentucky Data Link, Inc. d/b/a Cinergy Networks

03-0234 May 14, 2004 nii Communications, LTD.

03-0236 June 23, 2004 Allegiance Telecom of Illinois, Inc.

03-0242 March 15, 2004 SOS Telecom, Inc.

03-0250 June 2, 2004 Personal Office, Inc.

03-0252 June 18, 2005 Heartland Communications

03-0251 May 25, 2004 Verizon Select Services, Inc.

03-0256 June 4, 2004 Alticomm, Inc.

03-0284 February 15, 2004 ICG Telecom Group, Inc.

03-0262 June 23, 2004 Comcast Phone of Illinois, LLC

03-0296 April 9, 2004 Global NAPs Illinois, Inc.

03-0297 June 10, 2004 Allure Communications, LLC

03-0351 June 2, 2004 Broadview Networks, Inc.

03-0353 December 10, 2004 AT&T Wireless PCS, LLC

03-0352 July 15, 2004 CloseCall America, Inc.

03-0389 July 15, 2004 Cypress Communications Operating Co. Inc.

03-0404 July 6, 2004 EZ Talk Communications, LLC

03-0408 July 14, 2004 Access One, Inc.

/1/ Pursuant to orders of Ill. C.C. in Dockets 03-0352, 03-0389, 03-0404 and 03-0408 dated August 12, 2003 and September 4, 2003.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 48 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont’d)

7.3 Agreements with Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996/1/ (cont’d)

7.3.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

03-0457 February 14, 2004 Access2Go, Inc. 03-0482 March 24, 2004 ACN Communications Services, Inc. 03-0500 August 10, 2004 dPi Teleconnect, LLC 03-0565 February 15, 2004 CityNet Illinois, LLC 03-0578 May 23, 2004 LDMI Telecom, Inc. 03-0509 February 15, 2004 Metro Teleconnect Company, Inc. 03-0517 October 31, 2005 A Beep, LLC 03-0569 November 30, 2004 Sprint Spectrum, LP 03-0577 October 27, 2004 AmeriVoice Telecom d/b/a Black Telecom USA 03-0585 November 23, 2004 Poltel, LLC 03-0656 June 2, 2004 American Farm Bureau, Inc. d/b/a The Farm Bureau Connection 03-0572 April 28, 2004 Cinergy Communications Company 03-0586 November 16, 2004 Pacific Centrex Services, Inc. 03-0589 November 23, 2004 King City Telephone, LLC 03-0584 March 13, 2004 Ameritel Illinois, Inc. 03-0634 June 23, 2004 OnFiber Carrier Services, Inc. 03-0680 August 5, 2004 Grid4 Communications, Inc. 03-0652 November 30, 2005 Advantage Paging, Inc. 03-0635 November 26, 2004 DLS Communication Services, Inc. 03-0679 November 15, 2004 Ernest Communications, Inc. 03-0716 January 1, 2007 TCG Illinois and TCG Chicago 03-0717 January 1, 2007 AT&T Communications of Illinois, Inc. 03-0729 February 15, 2004 Neutral Tandem-Illinois, LLC 03-0778 August 30, 2006 Sage Telecom, Inc. 04-0003 February 24, 2005 Global Connection Inc. of America 03-0783 December 28, 2004 Granite Telecommunications, LLC 04-0035 July 2, 2004 Salmon PCS, LLC 04-0018 June 23, 2004 Forte Communications, Inc. 04-0046 June 23, 2004 Madison River Communications, LLC 04-0048 February 15, 2005 Midwest Telecom of America, Inc. 04-0074 June 23, 2004 Lightspeed Telecom, LLC 04-0098 June 23, 2004 CimCo Communications, Inc. 04-0095 June 23, 2004 IDT America, Corp. 04-0097 June 23, 2004 Access One, Inc.

/1/ Pursuant to orders in Ill. C.C. in Dockets 04-0095 and 04-0097 dated May 5, 2004.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 49 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont’d)

7.3 Agreements with Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996/1/ (cont’d)

7.3.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

04-0179 April 23, 2005 Think 12 Corporation d/b/a Hello Depot Easton Telecom Services, LLC 04-0190 March 18, 2005 CAT Communications International, Inc. 04-0201 June 23, 2004 BAK Communications, LLC 04-0244 February 18, 2005 Swetland Internet, Inc. 04-0245 April 15, 2005 Ameritech Mobile Services, Inc. 04-0311 June 18, 2004 d/b/a SBC Paging 04-0345 December 9, 2004 Primo Communications, Inc. 04-0348 March 25, 2005 Grafton Telephone Co. 04-0363 February 4, 2007 Vertex Broadband Corporation 04-0396 January 14, 2007 PNG Telecommunications, Inc. 04-0436 September 6, 2006 United Communications Systems, Inc. d/b/a Call One 04-0420 February 4, 2007 Cbeyond Communications, LLC 04-0462 May 19, 2005 Trans National Communications International, Inc. 04-0463 January 1, 2007 Focal Communications Corporation of Illinois 04-0473 August 30, 2006 Charter Fiberlink-Illinois, LLC 04-0552 February 4, 2007 Globcom, Inc. 04-0645 February 4, 2007 Comcast Phone of Illinois, LLC d/b/a Comcast Digital Phone 04-0724 November 28, 2005 Lee’s Communications, LLC 04-0807 March 7, 2008 Norlight Telecommunications, Inc. 05-0102 April 27, 2006 Ameritech Advanced Data Services of Illinois, Inc. 05-0168 June 1, 2007 United States Cellular Operating Company of Chicago, LLC; USCOC of Central Illinois, LLC; USCOC of Illinois RSA #1, LLC; USCOC of Illinois RSA #4, LLC; USCOC of Rockford, LLC 05-0283 May 1, 2008 MCImetro Access Transmission Services, Inc. and MCI WorldCom Communications, Inc. 05-0177 December 31, 2006 Level 3 Communications, L.L.C.

/1/ Pursuant to orders in Ill. C.C. 05-0102, 05-0168, 05-0283 and 05-0177.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 50 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont’d)

7.3 Agreements with Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996/1/ (cont’d)

7.3.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

05-0280 July 8, 2006 Digital Network Access Communications, Inc. 05-0371 August 9, 2006 Metropolitan Telecommunications of Illinois, Inc. d/b/a MetTel 05-0435 August 25, 2006 Expedient Carrier Services, LLC 05-0458 January 1, 2007 U.S. Fiber LLC 05-0624 September 9, 2006 Lightyear Network Solutions, LLC 05-0633 November 3, 2006 Camarato Distributing, Inc. 05-0634 December 31, 2006 EGIX Network Services, Inc. 05-0650 February 4, 2007 Aero Communications, LLC 05-0664 February 4, 2007 TelNet Worldwide-IL, LLC 05-0677 December 15, 2006 Megacomm Corporation d/b/a MegaPage 05-0685 January 10, 2007 PT Communications, Inc. 05-0711 January 16, 2007 VinaKom, Inc. d/b/a VinaKom Communications Spectrotel, Inc. 05-0721 January 1, 2007 IBFA Acquisition Company, LLC d/b/a Farm 05-0807 May 1, 2008 Bureau Connection 06-0088 February 4, 2007 Novacon Holdings LLC 05-0810 December 7, 2006 Airdis, LLC d/b/a Airdis Telecom 05-0821 February 1, 2008 Southern Illinois RSA Partnership 06-0149 February 4, 2007 CMC Telecom, Inc. 06-0181 January 1, 2007 Pac-West Telecomm, Inc. 06-0288 June 1, 2004 Illinois Valley Cellular RSA 2-I Partnership; Illinois Valley Cellular RSA 2-II Partnership; Illinois Valley Cellular RSA 2-III Partnership 06-0365 February 4, 2007 Clear Rate Communications, Inc. 06-0397 August 6, 2007 Computer View, Inc. 06-0405 July 26, 2007 Network PTS, Inc. 06-0419 February 4, 2007 New Millennium Telecommunications, Inc. 06-0424 July 19, 2007 Trans National Communications International, Inc. 06-0450 May 1, 2008 Insight Phone of Illinois, LLC d/b/a Insight Phone 06-0471 August 20, 2007 Electronic Engineering Co

/1/ Pursuant to orders in Ill. C.C. 06-0365, 06-0397, 06-0405, 06—419, 06-0424, 06-0450 and 06- 0471.

PART 23 - IC Service for LE Telecommunications Carriers Original Sheet 51 SECTION 2 - Ameritech End Office Integration Service

7. RATES AND CHARGES (cont’d)

7.3 Agreements with Telecommunications Carriers Pursuant to Sections 251 and 252 of The Federal Telecommunications Act of 1996/1/ (cont’d)

7.3.1 General (cont’d)

Docket No. Expiration Date Contracting Carrier

/1/ Pursuant to orders in Ill. C.C. 06-0479, 06-0500, 06-0574, 06-0546, 06-0613, 06-0629 and 06- 0630.

Issued: June 28, 2010 Effective: June 29, 2010 By W. Karl Wardin, Regional Vice President - Regulatory 225 West Randolph Street, Chicago, Illinois 60606 ATT TN IW-10-0003