United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF D/B/A Centurylink Title Page (C) First Revised Sheet No

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United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF d/b/a CenturyLink Title Page (C) First Revised Sheet No. 1 Cancels Original Sheet No. 1

GENERAL EXCHANGE TARIFF

Schedule of Rates and Charges Together

With Rules and Regulations Applicable To

Services Provided In The Territory Served

By This Company Within The State of Texas

ISSUED: October 21, 2009 EFFECTIVE: November 20, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF d/b/a CenturyLink Adoption Notice (C) First Revised Sheet No. 1 Cancels Original Sheet No. 1

GENERAL EXCHANGE TARIFF

ADOPTION NOTICE

Effective July 28, 2009, United Telephone Company of Texas, Inc. registered the fictitious name (N) CenturyLink. Effective November 20, 2009, United Telephone Company of Texas, Inc. d/b/a Embarq, began operating under the name CenturyLink. As such, United Telephone Company of Texas, Inc. d/b/a CenturyLink hereby adopts, ratifies, and makes its own, in every respect as if the same had been originally filed by it, all schedules, rules, notices, concurrences, schedule agreements, divisions, authorities or other instruments whatsoever, filed with the Public Utility Commission, State of Texas, by or adopted by United Telephone Company of Texas, Inc. d/b/a Embarq between June 5, 2006 and November 19, 2009.

By this notice, United Telephone Company of Texas, Inc. d/b/a CenturyLink also adopts and ratifies all supplements or amendments to any of the above schedules, etc., which United Telephone Company of Texas, Inc. d/b/a Embarq has heretofore filed with said Commission. (N)

Effective June 5, 2006, United Telephone Company of Texas, Inc. began operating under the name Embarq. As such, Embarq hereby adopts, ratifies, and makes its own, in every respect as if the same had been originally filed by it, all schedules, rules, notices, concurrences, schedule agreements, divisions, authorities or other instruments whatsoever, filed with the Public Utility Commission of Texas, by United Telephone Company of Texas, Inc.

By this notice it also adopts and ratifies all supplements or amendments to any of the above schedules, etc., which United Telephone Company of Texas, Inc. has heretofore filed with said Commission.

ISSUED: October 21, 2009 EFFECTIVE: November 20, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink Section Trademarks Service Marks Second Revised Sheet No. 1 Cancels First Revised Sheet No. 1

Trade Names, Trademarks and Service Marks Used in this Tariff

Below is a list of trade names, trademarks and/or service marks for services which are offered in this Tariff. These trade names, trademarks and/or service marks are owned by CenturyLink, Inc. or a subsidiary of CenturyLink, Inc. and are used by United Telephone Company of Texas, Inc. dba CenturyLink with express permission. Trademark and service mark designations will not be listed hereafter in the Tariff. However, the laws regarding trademarks and service marks will still apply. Trademarks and service marks that are owned by CenturyLink, Inc. or a subsidiary of CenturyLink, Inc. cannot be used by another party without authorization.

CENTURYLINK CENTURYLINKTM CENTURYLINKSM CORE CONNECT® (N)

ISSUED: December 6, 2011 EFFECTIVE: December 16, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 1 13th Revised Sheet No. 1 Cancels 12th Revised Sheet No. 1

INDEX OF SUBJECTS

-A- Advance Payments Sec. 2 Sheet 1 ALI Data Management System Sec. 11 Sheet 1 Announcement Systems - Time and Temperature Sec. 32 Sheet 1 Application for Service Sec. 7 Sheet 2 Asynchronous Transfer Mode (ATM) Sec. 27 Sheet 1 Automatic Dialing – Announcing Devices Sec. 12 Sheet 2 Automatic Location Identification (ALI) Sec. 11 Sheet 1 Automatic Number Identification (ANI) Sec. 11 Sheet 1 Automatic Ring-Down Service Sec. 18 Sheet 13 Automatic Ring-Down Service Mileage Sec. 20 Sheet 7 Auxiliary Listings ▲ Sec. 5 Sheet 7 -B- Billed Number Screening ▲ Sec. 18 Sheet 62 Bills, Rendering of Sec. 7 Sheet 14 Blocking, 900/976 Service Sec. 18 Sheet 58 International Direct Dial Sec. 18 Sheet 58 Burglar Alarm Loops Sec. 20 Sheet 7 Business Assist Advantage Plans ▲(1) Sec. 18 Sheet 90 Business Classification Sec. 7 Sheet 5 -C- Call Line Identifier ▲ Sec. 18 Sheet 65 Cancellation of Order Charge Sec. 17 Sheet 6 Central Office Services & Features Sec. 18 Centrex Service Sec. 115 Centrex Service II Sec. 18 Sheet 48 CenturyLink Business Bundle ▲(1) Sec. 18 Sheet 100 CenturyLink Line Volume Plan - Local Exchange Tariff ▲(1) Sec. A Sheet 26 Common Calling Plans - Local Exchange Tariff Sec. A Competitive Response Programs Sec. 35 Sheet 1 Connection Central Bundle ▲(1) Sec. 18 Sheet 67 Connection with Certain Facilities of Customers Sec. 12 Contract for Service - Application for Service Sec. 7 Sheet 2 (D)

Core Connect ▲(1) Sec. 18 Sheet 95 Custom Calling Features & Services Sec. 18 Sheet 4 -D- Defacement of Premises Sec. 7 Sheet 5 Definition of Terms - Explanation of Terms Sec. 4 Deposits - Advance Payments and Deposits Sec. 2 Sheet 1 Derived Channel Services Sec. 28 Digital Trunking Service (DTS) Sec. 28 Sheet 5 Direct Inward Dialing (DID) Service▲ Sec. 18 Sheet 15 Directory Assistance Service▲ Sec. 5 Sheet 9 Directory Ownership Sec. 7 Sheet 8 Directory Services Sec. 5 Distance Learning and Information Sharing Program Discounts ▲ Sec. 7 Sheet 17 Dual-Name Listings Sec. 5 Sheet 6

▲ Central Telephone Company of Texas dba CenturyLink concurs in the rates and regulations governing this service.

▲(1) Central Telephone Company of Texas dba CenturyLink concurs in the regulations governing this service.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company off Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 1 4th Revised Sheet No. 2 Cancels 3rd Revised Sheet No. 2

INDEX OF SUBJECTS

-E-

811 Service For “One Call” Notification Systems ▲ Sec. 11 Sheet 50 Educational Percentage Discount Rates (E-Rates) Sec. 7 Sheet 18

Enterprise Service - Listings Sec. 5 Sheet 4 ESP Link Sec. 28 Sheet 18 Expanded Local Calling Service (ELC) Sec. 22 Expedited Order Charge Sec. 17 Sheet 6 (N) Explanation of Terms Sec. 4 ExpressTouch Service Sec. 18 Sheet 21 Extended Area Calling Service (Optional) Local Exchange Tariff Sec. A Sheet 25 Extended Metropolitan Service (Optional) Local Exchange Tariff Sec. A Sheet 24 Extensions to New Real Estate Additions Sec. 6 Sheet 3

-F-

Facilities for Miscellaneous Purposes Sec. 20 Sheet 6 Fire Reporting/Alarm Service Sec. 18 Sheet 1 Foreign Attachments to Company Facilities Sec. 7 Sheet 4 Foreign Exchange Service (Business Only) Sec. 9 FCC Designated N11 Services Universal Emergency Number Service 9-1-1 Sec. 11 Sheet 1 Wireless E911 Phase 2▲ Sec. 11 Sheet 19 211 Service For Information and Referral Service Sec. 11 Sheet 21 311 Non-Emergency Service Sec. 11 Sheet 41 511 Service for Travel Information Services▲ Sec. 11 Sheet 33 711 Service For Telecommunications Relay Service (TRS) Sec. 11 Sheet 27 811 Service For “One Call” Notification Systems ▲ Sec. 11 Sheet 50

-G-

General Rules and Regulations Sec. 7

-H-

Hosted MultiLine Bundle ▲ Sec. 18 Sheet 79

▲ Central Telephone Company of Texas dba CenturyLink concurs in the charges and regulations (T) governing this service.

ISSUED: May 1, 2017 EFFECTIVE: June 1, 2017 TX17-05

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 1 5th Revised Sheet No. 3 Cancels 4th Revised Sheet No. 3

INDEX OF SUBJECTS

-I- Individual Voice Channels For Custom Access Solutions Sec. 28 Sheet 1 INFO-LINK Sec. 24 Installation Charges - Service Connections, Moves & Changes Sec. 17 Integrated Services Digital Network (ISDN) - Basic Rate Interface (BRI) Sec. 25 Sheet 1 Integrated Services Digital Network (ISDN) - Primary Rate Interface (PRI) ▲ Sec. 125 Sheet 1 Integrated Services Digital Network-Primary Rate Interface (ISDN-PRI) Business Service ▲ Sec. 25 Sheet 29 Interest Rates on Customer Deposits, Overbilling and Underbilling Sec. 7 Sheet 17 International Direct Dialed Call Blocking Sec. 18 Sheet 58

-J- Joint User Service Sec. 10

-K-

-L-

Late Payment Charges ▲ Sec. 7 Sheet 15 Lifeline Telephone Service - Local Exchange Tariff ▲ Sec. A Sheet 18 Line Volume Plan - Local Exchange Tariff ▲(1) Sec. A Sheet 26 Local Exchange Rates Local Exchange Tariff Local Measured Service - Local Exchange Tariff Sec. A Sheet 7

-M-

Maintenance of Service Charge (a.k.a. Trouble Isolation Charge) Sec. 17 Sheet 2 (T) Mileage Charges - Local Exchange Tariff Sec. A Sheet 5 Move Charges, Outside Sec. 17 MultiLine Bundle ▲(1) Sec. 18 Sheet 71

-N-

National Directory Assistance Service (See Directory Assistance) Sec. 5 Sheet 9

-O-

Obsolete Service Offerings – Central Office Service & Features Sec. 118 Sheet 1 Obsolete Service Offerings - Centrex Service Sec. 115 Sheet 1 Obsolete Service Offerings - General Sec. 100 Sheet 1 Obsolete Service Offerings - Integrated Services Digital Network ▲ Sec. 125 Sheet 1 Obsolete Service Offerings – SwitchLink Plus Service Sec. 123 Sheet 1

▲ Central Telephone Company of Texas dba CenturyLink concurs in the charges and regulations governing this service.

▲(1) Central Telephone Company of Texas dba CenturyLink concurs in the regulations governing this service.

ISSUED: May 12, 2020 EFFECTIVE: June 12, 2020 TX2020-06

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 1 8th Revised Sheet No. 4 Cancels 7th Revised Sheet No. 4

INDEX OF SUBJECTS

-P-

Payment Allocation Following Suspension or Disconnection Sec. 19 Sheet 1 Pay Telephone Service Sec. 21 Prepaid Local Telephone Service (PLTS) Local Exchange Tariff Prepaid Local Telephone Service (PLTS) Packages ▲(1) Sec. 18 Sheet 93 Primary Rate Interface (PRI) Bundle – Business ▲(1) Sec. 18 Sheet 69 Privacy ID Sec. 18 Sheet 63 Private Line Services and Channels Sec. 20 Public Announcement Services - Time & Temperature Sec. 32

-R-

Recorded Music and Speech Loops Sec. 20 Sheet 6 Remote Call Forwarding Sec. 18 Sheet 19 Residence Classification Sec. 7 Sheet 6 Residence Customer Referral Program ▲ Sect. 29 Residence Service for Company Employees ▲ Sec. 7 Sheet 21 Responsibility of Customers Sec. 7 Sheet 9 Rotary Hunting Line Sec. 18 Sheet 63 -S-

711 Service For Telecommunications Relay Service (TRS) Sec. 11 Sheet 27 Satisfaction Guarantee Program ▲ Sec. 13 School and Library Discounts ▲ Sec. 7 Sheet 18 Selective Class of Call Screening Sec. 118 Sheet 1 Service Connections & Service Charges Sec. 17 Service Date Change Charge Sec. 17 Sheet 5 Service Guarantees Sec. 7 Sheet 14 Simply Unlimited Business ▲(2) Sec. 18 Sheet 108 Solutions – Business Sec. 18 Sheet 42 (N) Solutions – Residence Sec. 18 Sheet 36 Solutions II – Business ▲(1) Sec. 18 Sheet 83 Special Assemblies of Services Sec. 31 Special Construction and Provision/Extension of Facilities ▲ Sec. 6 Special Disaster Relief Rates Initiated by the Company ▲ Sec. 7 Sheet 21 Special Promotions Sec. 14 Special Services Sec. 7 Sheet 13 Specialized Customer Premises Equipment Sec. 16 Subscriber Transfer Service Sec. 18 Sheet 14 Suspension of Service Sec. 19 SwitchLink Plus Service Sec. 123 Symbols Sec. 3

▲ Central Telephone Company of Texas dba CenturyLink concurs in the rates and regulations governing this service. ▲(1) Central Telephone Company of Texas dba CenturyLink concurs in the regulations governing this service. ▲(2) All CenturyLink ILECs concur in the rates and regulations governing this service. (N)

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 1 5th Revised Sheet No. 5 Cancels 4th Revised Sheet No. 5

INDEX OF SUBJECTS

-T-

211 Service For Information and Referral Service ▲ Sec. 11 Sheet 21 311 Service Non-Emergency Sec. 11 Sheet 41

Telephone Directories Sec. 7 Sheet 8 Telephone Numbers Sec. 7 Sheet 8 Temporary Suspension of Service at Customer Request Sec. 19 Sheet 2 Termination of Service - Suspension of Service Sec. 19 Terms-Definitions Sec. 4 Toll and Casual Dialing Restriction Sec. 18 Sheet 61 Toll Restriction Service Sec. 118 Sheet 2 Trouble Isolation Charge (a.k.a. Maintenance of (N) Service Charge) Sec. 17 Sheet 2 (N)

-U-

Universal Emergency Number Service 911 Sec. 11 Sheet 1 Use of Party-Line Service Sec. 7 Sheet 13 Use of Service by Customer Sec. 7 Sheet 5

Vanity Listings ▲ Sec. 5 Sheet 7 Voice Business Continuity ▲ Sec. 18 Sheet 73

-W-

Wire Mileage Charges - Local Exchange Tariff Sec. A Sheet 5

-Z-

Zone Areas and Charges - Local Exchange Tariff Sec. A Sheet 6

▲ Central Telephone Company of Texas dba CenturyLink concurs in the rates and regulations governing this service.

ISSUED: May 12, 2020 EFFECTIVE: June 12, 2020 TX2020-06

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 1 7th Revised Sheet No. 6 Cancels 6th Revised Sheet No. 6

TABLE OF CONTENTS

Section Number

1. Index of Subjects and Contents 2. Advance Payments and Deposits 3. Symbols 4. Explanation of Terms 5. Directory Services 6. Special Construction and Provision/Extension of Facilities ▲ (T) 7. General Rules and Regulations 8. Termination Line Mileage 9. Foreign Exchange Service (Business Only) 10. Joint-User Service 11. FCC Designated N11 Services 12. Connection with Certain Facilities of Customers 13. Satisfaction Guarantee Program ▲ 14. Special Promotions 15. Reserved for Future Use 16. Specialized Customer Premises Equipment 17. Service Connection and Service Charges 18. Central Office Services and Features 19. Suspension of Service 20. Private Line Services and Channels 21. Pay Telephone Service 22. Expanded Local Calling (ELC) 23. Reserved for Future Use 24. Info-Link 25. Integrated Services Digital Network (ISDN)

28. Derived Channel Services 29. Residence Customer Referral Program ▲ 30. Reserved for Future Use 31. Special Assemblies of Services 32. Public Announcement Services - Time & Temperature 33. Reserved for Future Use 35. Competitive Response Programs 100. Obsolete Service Offerings 115. Obsolete Service Offerings – Centrex Services 118. Obsolete Service Offerings – Central Office Service & Features 123. Obsolete Service Offerings - SwitchLink Plus Service 125. Obsolete Service Offers – Integrated Services Digital Network (ISDN) ▲ A. Local Exchange Tariff Optional Extended Area Calling Service (see Kaufman exchange)

▲ Central Telephone Company of Texas dba CenturyLink concurs in the rates and regulations governing this service.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 2

Original Sheet No. 1

ADVANCE PAYMENTS AND DEPOSITS

I. ADVANCE PAYMENTS

A. Applicants for telephone service may be required to pay in advance, at the time of application, all charges for the first month of exchange service and applicable service connection charges.

B. No advance payment will be required of present customers applying for additional telephone service.

C. The amount of advance payment is credited to the customer's account and applied against any indebtedness under the contract.

II. DEPOSITS

A. If it is deemed necessary by the Telephone Company in safeguarding its interests, applicants for service or existing customers may be required to make a suitable deposit of an amount not to exceed two months exchange service charges plus two months estimated toll usage. The deposit will be applied in payment of any charges for exchange or toll service which may remain unpaid at the time service is discontinued. Any balance of the deposit remaining after the termination of the contract and payment of outstanding charges will be returned to the customer with any interest that has accrued on the deposit. The deposit may be returned to the customer by the Telephone Company when it is deemed that the customer has established satisfactory credit with the Telephone Company.

1. Records of Deposits

a. The Telephone Company shall keep records to show:

1) The name and address of each depositor 2) The amount and date of the deposit 3) Each transaction concerning the deposit

b. The Telephone Company shall issue a receipt of deposit to each applicant from whom a deposit is received, and shall provide means whereby a depositor may establish claim if the receipt is lost.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 2

Original Sheet No. 2

ADVANCE PAYMENTS AND DEPOSITS

II. DEPOSITS (Continued)

A. If it is deemed necessary … (Continued)

1. Record of Deposits (Continued)

c. A record of each unclaimed deposit must be maintained for at least four (4) years, during which time the Telephone Company shall make a reasonable effort to return the deposit.

B. Service may be discontinued for failure of the customer to furnish a suitable deposit, if requested by the Company, within ten (10) days after the Company has served or mailed notice to the customer requesting such deposit.

C. Simple interest is paid on the deposit and will appear as a credit once each year on the regular monthly bill. (See Sec. 7, Sheet 18 of the General Exchange Tariff).

D. If service is not connected or after disconnection of service, the Telephone Company shall promptly and automatically refund the customer's deposit plus accrued interest on the balance, if any, in excess of the unpaid bills for service furnished. A transfer of service from one premises to another within the same service area of the Telephone Company shall not be deemed a disconnecting within the meaning of these rules, and no additional deposit may be demanded unless permitted by these rules.

E. When the customer has paid bills for service for twelve (12) consecutive residential billings or twenty-four (24) consecutive commercial or industrial billings without having service disconnected for nonpayment of bill and without having more than two occasions in which a bill was delinquent, and when the customer is not delinquent in the payment of the current bills, the Telephone Company shall promptly and automatically refund the deposit plus accrued interest to the customer in the form of cash or credit to the customer's bill at the option of the customer.

F. The fact that a deposit has been made in no way relieves the customer from complying with Telephone Company regulations as to payment of bill or temporary suspension or termination of contract for non-payment of bills.

G. Applicants for service who have had telephone service within twelve months prior to their new application and who have established satisfactory credit are not required to make a deposit.

H. All applicants for permanent residential service who are sixty-five (65) years of age or older will be considered as having established credit if such applicant does not have an outstanding account balance for the same utility service which accrued within the last two (2) years. No cash deposit shall be required of such applicant under these conditions.

I. Lifeline subscribers who voluntarily elect to receive Toll Restriction will not be required to pay a deposit.

J. A customer who subscribes to Prepaid Local Telephone Service (PLTS) is not required to pay a deposit.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 3 First Revised Sheet No. 1 Cancels Original Sheet No. 1

SYMBOLS

GENERAL

The following symbols will be utilized for all changes of material within the General Exchange and Local Exchange Tariffs.

(I) Rate Increase

(N) New Rate or Regulation

(R) Rate Reduction

(T) Change in Text, but no change in Rate or Regulation

(D) Discontinued Rate or Regulation

(M) To signify a move from one sheet to another with no change to text, regulation or tariff

(Z) To denote the correction of an error made during a revision (T)

ISSUED: July 16, 2008 EFFECTIVE: August 15, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 4

Original Sheet No. 1

EXPLANATION OF TERMS

ACCESS LINE

A circuit between the station protector on the customer's premises and the serving central office providing access to the network.

ACCESSORIES

Denotes devices which are mechanically attached to, or used with, the facilities furnished by the company and which are independent of, and not electrically, acoustically, or inductively connected to the communications path of the telecommunications systems.

AIR LINE MEASUREMENT

See Mileage and Zone Charges.

ALTERNATING CURRENT SUPPLY

Electrical energy which is used to provide power for some telephone accessories and for the operation of bells and signal devices. The Company requires electrical outlets to provide 110 volt 60 cycle alternating current.

BASE RATE

A scheduled rate for any form of exchange service which is within the base rate area.

BASE RATE AREA

A specific section of an exchange area within which primary classes of service are available without extra zone or exchange line mileage charges.

BUILDING (SAME)

The term "same building" is to be interpreted as a structure under one roof, or two or more structures under separate roofs but connected by enclosed passageways which do not cross public thoroughfares in which wires or cables of the Company can be safely run and provided the plant facility requirements are not appreciably greater than would be required normally if structures were under one roof. In those cases where there are several structures under separate roofs but connected by enclosed passageways and the plant facility requirements for furnishing telephone service are appreciably greater than would be required normally if all the structures were under one roof, the term "same building" applies individually to each of the separate structures. Pipes and conduit are not considered enclosed passageways

CALL

An attempted communication, whether completed or not.

CALLING AREA

See "local service area".

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 4

Original Sheet No. 2

EXPLANATION OF TERMS

CANCELLATION CHARGES

A charge applicable under certain conditions when application for service and/or facilities is cancelled in whole or in part prior to the completion of the work involved or before contract period is completed.

CAPTION LISTING

See Directory Listing.

CENTRAL OFFICE

A central office is the point of interconnection of customer local loops, toll trunks, and, if applicable, EAS or special circuiting by means of which intercommunication is provided for customers within a specified area under contract for exchange service. An essential characteristic of a central office is switching equipment to which telephone stations are connected by means of circuits defined as "Central Office Lines".

CENTRAL OFFICE DISTRICT OR AREA

The specific section or area served by a single central office and serving all customers' lines which have a common central office designation.

CENTRAL OFFICE LINE

See "Access Line".

CLASS OF SERVICE

A description of telephone service dependent upon its use such as business, residence, etc.

COLLECT CALL

The procedure by which certain messages, upon request, may be reversed (charged to the called station) upon acceptance of the call at the called station.

COMMUNICATIONS SYSTEMS

Channels and other facilities which are capable, when not connected to telecommunication service, of 2- way communication between customer-provided terminal equipment.

COMPANY

Whenever used in this tariff, "Company" refers to the United Telephone Company Of Texas, Inc. unless the context clearly indicates otherwise.

CONCURRENCE

A statement that the Company conforms to the charges, rates and/or conditions for a particular service as described in the tariff(s).

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 4 (T) 1st Revised Sheet No. 3 Cancels Original Sheet No. 3

EXPLANATION OF TERMS

CONNECTING ARRANGEMENT

The term "connecting arrangement" denotes the protective equipment provided by the Company to accomplish the direct electrical connection of customer-provided facilities with the facilities of the Company, when such customer-provided equipment does not conform to Part 68 of the FCC Rules and Regulations for direct connection of customer-provided terminal equipment.

CONNECTING COMPANY

A corporation, association, firm or individual owning and operating a toll line or one or more central offices and with whom traffic is interchanged.

CONNECTING STATION

An exchange or toll station of a connecting company.

CONSTRUCTION CHARGE

A separate initial charge made for construction of pole lines, circuits, facilities, etc., in excess of that contemplated under the rates quoted in the exchange tariffs.

CONTRACT PERIOD

The length of time for which a customer is responsible for the charges associated with the services and facilities under contract.

CUSTOMER

Any person, firm, partnership, corporation, municipality, cooperative organization or governmental agency, furnished communications service by the Company under the provisions and regulations of its tariff.

CUSTOMER PREMISES EQUIPMENT (CPE)

Telephone terminal equipment located at a customer's premises. This does not include overvoltage protection equipment, inside wiring, coin-operated or pay telephones, "company-official" equipment, mobile telephone equipment, "911" equipment, equipment necessary for provision of communications for national defense, or multiplexing equipment used to deliver multiple channels to the customer.

CUSTOMER PREMISES WIRING

Customer premises wiring is defined as that wiring, connectors, blocks, and jacks, including additional drops and protectors, on a customer's premises that extend between the first termination (first protector) or Network Interface Device (NID) of the Exchange Access Line and those standard registration jack (D) locations within the customer's premises to which terminal equipment shall be connected for access to the exchange access line. (D)

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 4 (T) 1st Revised Sheet No. 4 Cancels Original Sheet No. 4

EXPLANATION OF TERMS

CUSTOMER PROVIDED TERMINAL EQUIPMENT

Telephone terminal equipment and associated wiring, provided by a customer, which may be connected to the communications path of the Telephone Company's exchange network either electrically, acoustically or inductively.

DESIGN SERVICE (N)

A service that is not immediately available for provisioning and requires treatment, equipment or engineering design (e.g. ISDN-PRI, DS1, Private Line, Foreign Exchange Service). (N)

DIRECT ELECTRICAL CONNECTION

A physical connection of the electrical conductors in the communications path.

DIRECTORY ASSISTANCE CALL COMPLETION

A service which provides customers the option of having local or IntraLATA calls automatically completed when they request a telephone listing from the Directory Assistance operator. The call may be completed automatically or by the Directory Assistance operator.

DIRECTORY ASSISTANCE SERVICE

A service provided to assist customers in obtaining telephone numbers which are or are not listed in the directory.

DIRECTORY LISTING

The publication in the Company's directory and/or directory assistance records, of information relative to a customer's telephone number, by which telephone users are enabled to ascertain the call number of a desired station.

Caption Listing: The listing of a customer's name without address or telephone number followed by a series of indented listings covering branches or different departments of the business.

Foreign Exchange Listing: The listing of a customer in the alphabetical list of an exchange other than that for the exchange from which the customer is served.

Free Listing: A directory listing for which no specific charge is made.

Indented Listing: A directory listing indented under another listing.

Reference Listing: The listing of a generally accepted name of a firm or corporation followed by a reference to another listing.

DISCONNECTION OF SERVICE

An arrangement made at the request of the customer, or initiated by the Company for violation of tariff regulations by the customer, for a permanent interruption of telephone service.

ISSUED: May 1, 2017 EFFECTIVE: June 1, 2017 TX 17-05

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 4

Original Sheet No. 5

EXPLANATION OF TERMS

DROP OR BLOCK WIRE

Wires used to connect the circuits of open wire, aerial, buried or underground distribution facilities to the point of entrance to the building where connection is made with the Protector or Network Interface Device.

ENTERPRISE SERVICE

See "Special Reverse Charge Toll Service".

EXCHANGE

A unit established for the administration of telecommunications service in a specified area for which a separate local rate schedule is provided. It may consist of one or more central offices together with associated plant facilities used in furnishing telecommunications services in that area.

EXCHANGE SERVICE

The general telephone service rendered in accordance with individual Local Exchange Tariff and General Exchange Tariff provisions. Exchange service is a general term describing as a whole, the facilities for local intercommunications, together with the right to send and receive a specified or an unlimited number of local messages at charges in accordance with the provisions of the Local Exchange Tariff.

Extension Service: A classification of exchange service, furnished to a customer that is connected on the same central office access line as a main station. Extension instruments may be provided by the Telephone Company or by the customer on individual line service.

Flat Rate Service: A classification of exchange service furnished a customer under tariff provisions, for which a stipulated charge is made, regardless of the amount of use.

Foreign Central Office Service: A classification of exchange service furnished to a customer in a multi-office exchange from a central office other than the one from which service would normally be furnished.

Foreign Exchange Service: A classification of exchange service furnished to a customer from an exchange other than the one from which he would normally be served.

One Party Service: A classification of exchange service which provides that only one customer shall be served by the circuit connecting such customer with the central office or other switching unit.

Message Rate Service (measured rate): A classification of non-coin exchange service which is charged for on the basis of amount of use.

Party Line Service: A classification of exchange service which provides that two but not more than four access lines may be served by the same central office circuit.

U-Touch Calling Service: A classification of exchange service furnished from certain specified central offices whereby calls are originated through the use of pushbuttons in lieu of a rotary dial.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 4

Original Sheet No. 6

EXPLANATION OF TERMS

EXCHANGE SERVICE AREA

The area within which the Company furnishes complete local telephone service at the exchange rates applicable within that area.

EXTENDED AREA SERVICE

A type of telephone service furnished under tariff provisions whereby customers of a given exchange may complete calls to and/or may receive calls from one or more exchanges without the application of long distance message telecommunications charges.

EXTENSION TERMINATION LINE MILEAGE

See Mileage Charges.

FCC DESIGNATED N11 SERVICES

Abbreviated three (3)-digit dialing codes which allow the caller to connect to a location in the local telephone network that otherwise would be accessible only through a seven (7)-or ten (10)-digit telephone number. The local telephone network must be preprogrammed to translate the three-digit code into the appropriate seven- or ten-digit telephone number and route the call accordingly. Among abbreviated dialing arrangements, “N11” codes are three-digit codes of which the first digit can be any digit other than 0 or 1, and the last two digits are both 1. 0 and 1 are unavailable because those digits are used for switching and routing. The following N11 codes have been designated by the FCC or by the telephone industry for the purpose listed below:

FCC Designated N11 Code Purpose

211 Allows access to community information and referral services. Designated by the FCC.

311 Allows access to non-emergency police and government services. Designated by the FCC.

411 Traditionally allows access to local directory assistance services of local telephone companies. Not designated by the FCC.

511 Allows access to traveler information services. Designated by the FCC.

611/811 Traditionally allows access to local telephone company repair and business offices. Not designated by the FCC.

711 Allows access to Telecommunications Relay Services (TRS) for individuals with hearing or speech disabilities. Designated by the FCC.

911 Federally mandated as the National Emergency Number and allows access to emergency services. Designated by the FCC and ordered by the United States Congress.

011/111 Not available. “0” and “1” are used for switching and routing purposes.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 4

Original Sheet No. 7

EXPLANATION OF TERMS

FLAT RATE SERVICE

See Exchange Service.

FOREIGN CENTRAL OFFICE MILEAGE

See Mileage and Zone Charges.

FOREIGN CENTRAL OFFICE SERVICE

See Exchange Service

FOREIGN EXCHANGE LISTING

See Directory Listing

FOREIGN EXCHANGE MILEAGE

See Mileage and Zone Charges

FOREIGN EXCHANGE SERVICE

See Exchange Service

FREE LISTING

See Directory Listing.

HARM

Electrical hazards to Telephone Company personnel, damage to Telephone Company equipment, malfunctions of Telephone Company billing equipment, and degradation of service to persons other than the user of the subject terminal equipment, as well as the calling or called party.

INCUMBENT LOCAL EXCHANGE COMPANY

A local exchange company that has a certificate of convenience and necessity on September 1, 1995.

INDENTED LISTINGS

See Directory Listing.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 4

Original Sheet No. 8

EXPLANATION OF TERMS

INFO-LINK

A toll-free one-way service which allows end users to receive non-voice connection to an Internet Service Provider (ISP) located in a Telephone Company specified foreign exchange. INFO-LINK is intended to be offered in exchanges that are not currently served by an ISP.

INITIAL CHARGE

See Installation Charge.

INITIAL SERVICE PERIOD

The minimum period of time for which service, facilities and equipment are provided.

INSIDE WIRING

See Customer Premises Wiring.

INSTALLATION CHARGE

A non-recurring charge applying to the provision of certain facilities as distinguished from the service connection charge applicable for establishment of basic telephone service. The installation charge is normally associated with optional service features and may sometimes be called an "initial" charge.

INTEGRATED SERVICES DIGITAL NETWORK - BASIC RATE INTERFACE (ISDN-BRI)

ISDN-BRI is a local exchange telecommunications service that provides integrated voice and data communications capability. ISDN-BRI supports the simultaneous transmission of voice and data over a single exchange access line. ISDN-BRI Service provides a customer two B-channels with transmission speeds up to 64 Kbps each and one 16 Kbps D-channel.

INTEGRATED SERVICES DIGITAL NETWORK - PRIMARY RATE INTERFACE (ISDN-PRI)

ISDN-PRI provides a method of access to the telephone network called Primary Rate Access. Primary Rate Access is an ISDN based, DS1 access link to the telecommunications network and provides integration of multiple voice and data transmissions channels on the same line. ISDN-PRI Service consists of twenty-three 64 Kbps B-channels and one 64 Kbps D-channel.

INTERCEPT SERVICE

A service arrangement whereby a person calling a discontinued or disconnected telephone number or vacant equipment level is informed that the called telephone number has been discontinued, or disconnected, or changed to another number, or that calls are received by another telephone.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 4 Second Revised Sheet No. 9 Cancels First Revised Sheet No. 9

EXPLANATION OF TERMS

INTERFACE

The junction or point of interconnection between two systems or equipments having different characteristics which may differ with respect to voltage, frequency, speed of operation, type of signal and/or type of information coding including the connection of other than Telephone Company provided facilities to exchange facilities provided by the Telephone Company.

INTERFACE OR DEMARCATION POINT

The point of interconnection between Telephone Company communications facilities and equipment, protective apparatus or wiring at a customer's premises. The interface or demarcation point shall be located at the customer's side of the Telephone Company's Network Interface Device (NID), or the equivalent thereof in cases where an NID is not employed, as provided under the Company's standard operating practices.

LIFELINE ASSISTANCE

A program sponsored by the FCC which provides discounted basic local residential or broadband (T) service to qualifying low-income subscribers. The State Lifeline Support program does not support (N) broadband service. Customers who receive a State Lifeline Support credit for wireline service or a bundled voice and data service package may not necessarily qualify to receive federal lifeline assistance. (N)

LISTING

See Directory Listing.

LOCAL CALLING AREA

See Local Service Area.

LOCAL MESSAGE

See Message.

LOCAL SERVICE

The term used to designate the service provided to a customer, of sending messages from his telephone station to other telephone stations within a specified area without the payment of a toll charge.

LOCAL SERVICE AREA

The area within which telephone service is furnished customers under a specific schedule of exchange rates (flat or measured) and without toll charges. A local service area may include one or more exchange areas under extended area service arrangement.

ISSUED: October 28, 2016 EFFECTIVE: December 2, 2016 TX 16-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 4(T) 1st Revised Sheet No. 10 Cancels Original Sheet No. 10

EXPLANATION OF TERMS

LONG DISTANCE MESSAGE TELECOMMUNICATIONS SERVICE

The furnishing of facilities for customers' communications on an individual message basis between rate centers, or, in connection with toll stations, within the same rate center.

Station-to-Station Call

A service whereby the person originating the call either dials the telephone number desired, or gives to the Telephone Company operator the telephone number of the desired station, miscellaneous common carrier connecting circuit, PBX, or PBX station which is reached directly rather than through a PBX attendant, or gives only the name and address under which such number is listed, and does not specify a particular person to be reached, nor a particular mobile station to be reached through a miscellaneous common carrier attendant nor a particular station, department or office to be reached through a PBX attendant.

Person-to-Person Call

A service whereby the person originating the call specifies to the Telephone Company operator a particular person to be reached, a particular mobile telephone to be reached through a miscellaneous common carrier attendant, or a particular telephone, department, or office to be reached through a PBX attendant.

MAINTENANCE OF SERVICE CHARGE (T) See “Trouble Isolation Charge.”

MESSAGE

A communication between two communicating devices. Messages may be classified as follows:

Local message: A communication between communicating devices within the same local service area.

Toll (Long Distance) Message: A communication between communicating devices in different exchange areas for which a toll charge is made.

ISSUED: May 12, 2020 EFFECTIVE: June 12, 2020 TX2020-06

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 4

Original Sheet No. 11

EXPLANATION OF TERMS

MILEAGE CHARGES

A charge applying for the use of part or all of a line furnished by the Company.

Air Line Measurement: The shortest distance between two points.

Route Measurement: The actual length of a circuit between two points.

Extension Termination Line Mileage: The measurement applying to that portion of an extension line in excess of the length provided without additional charge.

Foreign Central Office Mileage: The measurement applying to that portion of a circuit connecting a customer's main station, or private branch exchange, with a foreign central office.

Foreign Exchange Mileage: The measurement applying to that portion of a circuit connecting a customer's telephone, or private branch exchange, with a central office of another exchange other than that from which the customer would normally be served.

Tie Line Measurement: The measurement upon which the rates for the tie line is based, in accordance with Tariff provisions.

MISCELLANEOUS COMMON CARRIERS

Miscellaneous Common Carriers, as defined in Part 21 of the Federal Communications Commission Rules, are communications common carriers which are not engaged in the business of providing either a public land-line message telephone service or public message telegraph service.

MOBILE TELEPHONE SERVICE

A communication service through a land radiotelephone base station.

NATIONAL DIRECTORY ASSISTANCE SERVICE

A service provided to customers of the Telephone Company for the purpose of requesting telephone numbers of individuals or businesses who are located outside the customer's local Directory Assistance service area.

NETWORK CONTROL SIGNALLING

The transmission of signals used in the Telephone Company's exchange facilities which perform functions such as supervision (control, status, and charging signals), address signaling (dialing), calling and called number identification, audible tone signals (call progress signals indicating re-order or busy conditions, alerting, coin denominations, coin collect and coin return tones) to control the operation of switching machines in the telecommunications system.

NETWORK CONTROL SIGNALLING UNIT

The term “Network Control Signaling Unit” denotes the terminal equipment furnished for the provision of network control signaling.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 4 (T) 1st Revised Sheet No. 12 Cancels Original Sheet No. 12

EXPLANATION OF TERMS

NETWORK INTERFACE DEVICE (NID)

A device provided by the Telephone Company for the connection of customer premises wiring to Telephone Company facilities. The NID consists of a standard registration jack or its equivalent and is provided as part of the exchange access line on all new installations of service. (D)

NON-LISTED TELEPHONE NUMBER

A telephone number associated with an exchange station which at the request of the customer is not listed in the telephone directory but is made avail-able by the Company to the general public upon request.

NON-PUBLISHED TELEPHONE NUMBER

A telephone number associated with an exchange station which at the request of the customer is not listed in the telephone directory and is not made available to the general public by the Company. Company employees will not complete nor place calls to non-published telephone numbers unless the number is furnished by the calling party.

ONE PARTY SERVICE

See Exchange Service.

PARTY LINE SERVICE

See Exchange Service.

PERSON-TO-PERSON CALL

See Long Distance Message Telecommunications Service.

PREMISES (SAME)

The term “same premises” (except in connection with RELOCATES) shall be interpreted to mean: (a) The building or buildings together with surrounding land occupied or used in the conduct of one establishment or business, or as a residence, and not intersected by a public thoroughfare or by land occupied by others; or (b) the portions of a building occupied by a customer used in the conduct of one business or as a residence and not intersected by a public corridor or by a space occupied by others; or (c) the building or portion of a building occupied by the customer in the conduct of his business and as a residence provided both have the same street address; or (d) the continuous property operated as a single farm whether or not intersected by a public road.

In connection with RELOCATES, the term “same premises” is to be interpreted to mean the building or portion of a building occupied as a unit by the customer in the conduct of his business or residence, or a combination thereof, and not intersected by a public thoroughfare, a public corridor or space occupied by others.

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 4

Original Sheet No. 13

EXPLANATION OF TERMS

PRIMARY CLASS OF SERVICE

Any classes of exchange service which the Company undertakes to furnish at a rate common to all applicants for the same class located in the same rate area. Primary classes of service may be furnished in other areas at applicable rates plus extra exchange line mileage or zone charges.

RATE AREA

See Base Rate Area.

REFERENCE LISTING

See Directory Listing.

REGISTERED PROTECTIVE CIRCUITRY

Separate, identifiable and discrete electrical circuitry designed to protect the telephone network from harm, which is registered in accordance with Part 68 of the F.C.C. Rules and Regulations.

REGISTERED TERMINAL EQUIPMENT

Terminal equipment which is registered in accordance with Part 68 of the F.C.C. Rules and Regulations.

ROUTE MEASUREMENT

See Mileage and Zone Charges.

RURAL AREA

The area outside of the base rate area.

RURAL LINE

A rural line is a Company-owned station line serving customers outside the base rate area.

RURAL LINE SERVICE

Rural line service is service provided to customers outside the base rate area but within the exchange by means of rural lines.

SECRETARIAL LINES

Telephone lines of patrons of telephone answering bureau which terminate in telephone answering facilities on the premises of the bureau so as to permit the bureau attendant to answer incoming calls on such lines.

SERVICE CONNECTION CHARGE

A non-recurring charge applying to the establishment of service for a customer and certain subsequent additions or changes to that service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 4 (T) 1st Revised Sheet No. 14 Cancels Original Sheet No. 14

EXPLANATION OF TERMS

SPECIAL REVERSE CHARGE TOLL SERVICE

A service plan by which a telephone company customer can offer his customers in selected areas the privilege of calling him without payment of toll charges and without having to request that charges be reversed.

SPEED CALLING

A feature which permits the station dialer to reach other stations by abbreviated dialing.

STATION-TO-STATION CALL

See Long Distance Message Telecommunications Service.

STATION LINE

See Access Line.

SUBSCRIBER

See Customer.

SUPPLEMENTAL CONTRACT

A contract for service or facilities in addition to that provided for under the original contract.

SUSPENSION OF SERVICE

An arrangement made at the request of the customer, or initiated by the Company for violation of tariff regulations by the customer, for temporarily interrupting service. During the period of suspension; the service is rendered inoperable. Facilities are reserved in anticipation that normal service will be resumed at some future date.

SPECIAL DESIGN SERVICE

See “Design Service”

TAXABLE TELECOMMUNICATIONS CHARGES

Charges for telecommunications services that are subject to sales tax under Chapter 151 of the Texas Tax Code.

TELECOMMUNICATIONS SERVICE

The services offered by the Company accessing the exchange switching network, including, but not limited to those services covered by the General Exchange, Local Exchange, Mobile Telecommunications Service Tariffs and Concurring Tariffs for Message Toll, Wide Area Telephone Service and Private Line Service.

TELEPHONE NUMBER

A designation assigned to a central office line, or access line for placing or terminating calls and for identification and the assessment of message charges, etc.

ISSUED: May 1, 2017 EFFECTIVE: June 1, 2017 TX 17-05

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 4 2nd Revised Sheet No. 15 Cancels 1st Revised Sheet No. 15

EXPLANATION OF TERMS

TELEPHONE OR TELECOMMUNICATIONS NETWORK

The local telephone exchange and long distance message telecommunications facilities, or network; both inter and intrastate.

TEMPORARY DISCONNECTION

See Suspension of Service.

TERMINATION CHARGE

A charge made to liquidate a customer's obligations for termination of service prior to the expiration of the initial contract period.

TIE LINE

See Exchange Line.

TIE LINE MEASUREMENT (MILEAGE)

See Mileage.

TOLL MESSAGE

See Message.

TOLL RESTRICTION SERVICE

A service which provides a means of restricting access to the Long Distance Message Telecommunications Network by direct dial or operator handled, which includes 1+, 0+ or 0-.

TOLL SERVICE

See Long Distance Message Telecommunications Service.

(M)

(M) Material previously appearing on this sheet now appears on Sheet No. 16.

ISSUED: May 12, 2020 EFFECTIVE: June 12, 2020 TX2020-06

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 4 Original Sheet No. 16

EXPLANATION OF TERMS

TROUBLE ISOLATION CHARGE (N)

A nonrecurring charge which applies when the Company dispatches a technician to investigate a customer reported issue and determines the trouble is caused by customer wiring, equipment, or customer actions. The charge also applies when a customer requests or allows CenturyLink to dispatch a technician to investigate and the customer then does not allow access to the necessary in-home wiring and equipment or is not available to allow access. This charge is waived for customers who have inside wire protection, unless CenturyLink determines through remote testing that no trouble exists, and the customer insists on a dispatch. If no trouble is found, the charge applies whether or not the customer has inside wire protection. (N)

U-TOUCH CALLING SERVICE (M)

See Exchange Service.

ZONES Areas outside the Base Rate Area (BRA) defined as either Zone 1 or Zone 2 as described in Section A, Sheet 6 of this tariff. A flat rate charge will be applicable in addition to the basic charge for one-party and two-party service. (M)

(M) Material previously appeared on 1st Revised Sheet No. 15.

ISSUED: May 12, 2020 EFFECTIVE: June 12, 2020 TX2020-06

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 5

Original Sheet No. 1

DIRECTORY SERVICES

I. DIRECTORY LISTINGS

A. These rates and regulations for directory listings apply only to the alphabetical section of the directory containing the regular alphabetical list of customers and do not apply to listings or advertising appearing in the classified section.

B. The alphabetical list of names of customers is solely for the purpose of informing calling parties of the telephone numbers of customers and those entitled to use the customer's service, and special sequence or arrangement of names is not contemplated.

C. The Telephone Company has the right to limit the length of any listing to one line in the directory by the use of abbreviations when the clearness of the listing or the identification of the customer is not impaired thereby. If at the request of the customer, abbreviations are omitted and an extra line is required for a listing, extra line charges will apply.

D. A listing must conform to the Telephone Company's specifications with respect to its directories.

E. Listings are regularly provided in connection with all classes of exchange service except public telephone service. A listing may be omitted from the directory upon request of a customer in writing when, in the judgment of the Telephone Company, the omission is warranted by the circumstances of the particular case.

F. The length of the contract period for directory listings where the listing actually appears in the directory is the directory period, unless the main contract is cancelled prior to the end of the period. When the listing appears on information records only, the contract is for one month.

G. Federal excise tax applies to all types of extra listings, except bold-type listings.

II. PRIMARY LISTINGS

A. A primary listing is provided as a part of, and is included in the rate for, local exchange telephone service.

B. A primary listing normally is in the name and address of:

1. The person or firm contracting for local exchange telephone service.

2. A party for whom the exchange telephone service was contracted for by another party.

3. The name under which a firm regularly conducts business.

4. The same service with no more than two individual's names, as described in Dual- Name Listings service following.

Note 1: An additional listing reversing the order of the individual's name or names as described in Dual-Name Listings service following may be obtained at the rates specified in this section for regular additional listings. The restriction of no more than two individuals' name applies only to listings involving two individuals' names.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 5

Original Sheet No. 2

DIRECTORY SERVICES

II. PRIMARY LISTINGS (Continued)

C. When two or more access lines are consecutively operated (trunk hunting), the first number of the group is considered the primary listing. Where two or more access lines, are not consecutively operated a primary listing may be made for each line.

D. The primary listing, provided with a customer's second residence access line, may be the name or names and address of members of a customer's family residing in his household. Such primary listings with more than one name must be indented under another primary listing.

E. Rates for primary listings:

1. There are no monthly charges for primary listings in the directory when establishing local exchange telephone service.

2. Upon receipt of a request for primary listing changes in the directory, a "Record Order" charge will apply, as indicated in Section 17, Service Connections and Service Charges, of this tariff.

III. REGULAR EXTRA LISTINGS

A. Business extra listings may be the names of partners or members of the firm, if the customer is a partnership or firm; the names of the officers of the corporation, if the customer is a corporation; and for any business establishment, the names of business associates or employees of the customer. Business extra listings may be the bona fide names of individuals, firms or corporations which the customer owns or controls, or is duly authorized to represent. Listings which are designed primarily to give publicity are not accepted.

B. Residence extra listings may be the names of members of the customer's family or other persons residing in the customer's household.

C. Business extra listings in connection with pay telephone service are furnished under the regulations as specified in Paragraph III-A above.

D. Ordinarily, all extra listings must be of the same address and telephone number as the primary listing, except as provided below for alternate listings. However, when in the opinion of the Telephone Company it appears necessary as an aid to the use of the directory and provided satisfactory service can be furnished, a listing may be permitted under the address of a PBX station or extension stations, installed on premises of the customer, but at an address different from that of the switchboard, or access line using the telephone number of the primary listing.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 5

Original Sheet No. 3

DIRECTORY SERVICES

III. REGULAR EXTRA LISTINGS (Continued)

E. In connection with private branch exchange service at hotels, motels, and apartment houses, residence extra listings may be provided in the names of permanent guests or tenants at that location, provided approval is obtained of the hotel, motel, or apartment house involved. However, no separate billing will be issued for these instances.

F. At the option of the customer, extra listings may be obtained upon the issuance of a directory or between issues of directories at which time they appear on information records only. Charges for extra listings date from the time the listings are posted on information records.

IV. SPECIAL TYPES OF EXTRA LISTINGS

A. Duplicate Listings

1. Duplicate listings, i.e., listings of nicknames, abbreviated names, names which are commonly spelled in more than one way, and rearrangements of names, are permitted when, in the opinion of the Telephone Company, they are necessary for the proper identification of the customer, and are not desired to secure a preferential position in the directory or for advertising purposes.

2. The regular extra listing rates and conditions apply for each duplicate listing.

B. Alternate Listings

1. Listing of an alternate telephone number to be called in case no answer is received, is permitted for customers to all classes of service.

Example A. Jones Hardware Company, 210 Main - 592-2461 no answer call - 594-4781 Example B. Doe, Joe C. Plbg Co., 401 Oak - 592-7102 Nights, Sundays & Holidays Call Cox, S.T., Mgr. - 594-1721 Richards, Sam - 594-2002

2. When the customer has two or more alternate call listings under the same primary or regular extra listing, no charge is made for the caption line "If no answer call"; "Sundays, and Holidays Call"; "After 6:00 P.M. Call", etc.

3. The alternate number may be that of a service not under contract with the customer in connection with whose name it appears. In such a case, the consent of the customer to the alternately listed service must be obtained before the alternate listing is furnished.

4. The regular extra listing rates and conditions apply to each alternate listing.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 5

Original Sheet No. 4

DIRECTORY SERVICES

IV. SPECIAL TYPES OF EXTRA LISTINGS (Continued)

C. Extra Lines of Information

Listings of office hours or other lines of information which are not required by the Telephone Company in order to efficiently handle telephone traffic are not included in the regular charges for service. Regular extra listing rates apply to the listing of office hours or other information desired by the customer in connection with his listing. A phrase directing the method of calling when a PBX operator is not on duty may be listed in the directory, at extra charge, whenever night connections are provided.

D. Foreign Listings

Foreign listings are listings in the alphabetical list of an exchange other than the exchange in which the listed service is furnished. The regular extra listing rate applicable in the exchange in which the listing appears applies to each foreign listing.

V. SPECIAL REVERSED CHARGE TOLL SERVICES LISTINGS (ENTERPRISE LISTINGS)

A. Customers furnished with special reversed charge toll service (Enterprise Listings) are entitled to one listing in the alphabetical list of each exchange selected for the provision of this service without additional charge.

VI. NON-PUBLISHED AND NON-LISTED TELEPHONE NUMBERS

A. A non-published telephone number is an arrangement whereby a customer's telephone number is omitted from both the published telephone directory and directory assistance records.

B. A non-listed telephone number is an arrangement whereby a customer's primary listing is omitted from the published telephone directory but is available to the general public from the Company's directory assistance records.

C. Rules and Regulations

1. Such an arrangement may be provided when, in the opinion of the Telephone Company, it will not be detrimental to the service in general.

2. The minimum term billing for non-published or non-listed service is one month. Rates for non-published or non-listed service are set forth in this section.

3. When (at the request of the customer) the Telephone Company is required to change the telephone number, a non-recurring charge will apply as directed in Section 17, Service Connections and Service Charges of this tariff.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 5 (T) First Revised Sheet No. 5 Cancels Original Sheet No. 5

DIRECTORY SERVICES

VI. NON-PUBLISHED AND NON-LISTED TELEPHONE NUMBERS (Continued)

C. Rules and Regulations (Continued)

4. In the absence of gross negligence or willful misconduct, no liability for damages arising from publishing the telephone number of a private telephone in the directory or disclosing said number to any person shall attach to the Company, and where such a number is published in the directory the Company's liability shall be limited to and satisfied by a refund of any monthly charges which the Company may have made for such private telephone number. The subscriber indemnifies and saves the Telephone Company against any and all claims for damages caused or claimed to have been caused, directly or indirectly, by the publication of the number of a private telephone or the disclosing of said number to any person.

5. When a call is placed from a telephone number associated with a non-published listing, the name and number will be disclosed if the called party has equipment to display the calling number. Customers may prevent the display of the calling number by activating Caller ID blocking. Caller ID blocking is available, at no charge, in areas where Caller ID disclosure is possible.

6. A customer requesting non-published or non-listed service due to personal (N) safety concerns (stalking, domestic violence, sexual assault, etc.) will be provided non-published or non-listed service free of charge. Customer may be required to provide documentation of eligibility. Examples of acceptable documentation are participation in a state-administered address confidentiality program or a court-ordered protective order. (N)

6. Utilization of Call Trace

Parties with non-published numbers forfeit the privacy afforded by the service to the extent that the telephone number is identified through activation of a Call Trace and/or Call Line Identifier procedures whereby the name and address of the subscriber will be provided to the authorized law enforcement agency upon request of the agency.

ISSUED: June 21, 2016 EFFECTIVE: July 22, 2016 TX 16-05

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 5

Original Sheet No. 6

DIRECTORY SERVICES

VII. DUAL-NAME LISTINGS

A. Dual-name listings are defined as a combination of names and/or initials of two individuals with the same or different surname(s), residing at the same address or of one person known by two sets of first and/or middle names and/or initials.

B. The following examples illustrate the format options for dual-name listings:

1. Primary Listing

Jones, John & Mary 123 Main St Anytown 12345 123 456-7890 or Jones, John T & Mary F 123 Main St Anytown 12345 123 456-7890 or Jones, Mary F 123 Main St Anytown 12345 123 456-7890 or Jones, John T Mrs. 123 Main St Anytown 12345 123 456-7890 or Jones, John & Mary Smith 123 Main St Anytown 12345 123 456-7890 or Jones, John & Tom Smith 123 Main St Anytown 12345 123 456-7890

2. Primary with Additional Listing(s)

Jones, John T 123 Main St Anytown 12345 123 456-7890 Jones, Mary F & John T 123 Main St Anytown 12345 123 456-7890 Jones, John T Tex 123 Main St Anytown 12345 123 456-7890

Jones, John & Mary Smith 123 Main St Anytown 12345 123 456-7890 Smith, Mary 123 Main St Anytown 12345 123 456-7890

Jones, John & Tom Smith 123 Main St Anytown 12345 123 456-7890 Smith, Tom 123 Main St Anytown 12345 123 456-7890

C. Dual-name listings are available only for residence subscribers.

D. Dual-name listings may be provided as the primary listing at no monthly recurring charge for the addition of the second name to the listing.

E. Dual-name listings may be provided as an additional listing at the customer’s option at the regular additional listing rate.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 5

Original Sheet No. 7

DIRECTORY SERVICES

VII. DUAL-NAME LISTINGS (Continued)

F. A service charge as specified in Section 17 applies for:

1. Changing a primary single-name directory listing to a primary dual-name directory listing.

2. Changing the primary or additional dual-name directory listing once established.

3. Changing an additional dual-name directory listing to a primary dual-name directory listing.

G. No nonrecurring charge applies when the dual-name listing is established with the initial establishment of service or when a change in an existing listing is requested on an order for which service charges are otherwise applicable.

H. When providing a primary dual listing for two individuals and an extra line is required for that listing, extra line charges will apply.

VIII. AUXILIARY LISTINGS▲

Auxiliary listings, which provide supplemental business or residence information, will be provided without charge upon customer request when the number of auxiliary listings requested does not exceed the number of access lines billed under a single bill. If the auxiliary listing uses the same name as the primary listing, the primary listing and the auxiliary listing must be in the caption together. Auxiliary listings may not be used to reprint the main telephone number under a different name. If an auxiliary listing is published more than once, the second listing will be charged at the rate for an additional listing.

IX. VANITY LISTINGS ▲

A. Where available, a subscriber may request to have the assigned telephone number published in the telephone directory in upper case alpha form, i.e., “333-THIS", rather than 333-8447. Use of Vanity Listings is not exclusive to any single subscriber. The letters “Q” and “Z” are not available nor may the “#” or “*” symbols be used with this service. The numbers “0” or “1” may not be used to represent the letters “O” or “I”, respectively, in a Vanity Listing.

B. Prior to establishing a Vanity Listing, the Company reserves the right to require, when necessary in its sole discretion, satisfactory evidence from the subscriber that the subscriber is authorized to use any trade name, business name, or any other name or term, requested by the subscriber, which is copyrighted or otherwise reserved.

▲ Central Telephone Company of Texas dba Embarq concurs in the charges and regulations governing this service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 5 8th Revised Sheet No. 8 Cancels 7th Revised Sheet No. 8

DIRECTORY SERVICES

IX. VANITY LISTINGS (Continued)

C. Provisioning of a Vanity Listing is based upon the current availability of that telephone number. The Company reserves the right to exclude certain numbers or blocks of numbers from assignment, and will determine the availability criteria in its sole discretion. No customer waiting lists will be maintained. The Company reserves the right to reject any listing or number, which in its sole discretion, may be considered objectionable or would tend to delay or impede the use of the directory.

D. The Company will not be a party to any controversy or conflict between customers as a result of the Vanity Listing.

E. The customer shall have no property right in the Vanity Listing, and the number shall remain the property of the Company. The Company reserves the right to change the Vanity Listing in its sole discretion. The Company is not liable for any kind of monetary or damage claims due to errors, omissions, or customer problems associated with Vanity Listings.

F. Vanity Listings may be listed in the Company directories white pages at the rates provided in this Section. Customers wanting the Vanity Listing will be charged the Vanity Listing rate in addition to the applicable nonrecurring rates. Customers wanting the numeric equivalent of the Vanity Listing to also be listed as their primary listing will not be charged an additional monthly recurring charge but will be assessed the appropriate nonrecurring rate if the numeric equivalent is added by a subsequent order. When listed, the numeric equivalent of the Vanity Listing will immediately follow the alpha listing in the directory. Only the numerical listing shall be available from Directory Assistance.

X. RATES FOR DIRECTORY LISTINGS Monthly Rate Residence/Business (T) A. Additional Listing $8.00 (I)

B. Alternate Call Number Listing 8.00 (I)

C. Extra Line 8.00 (I)

D. Non-published Telephone Numbers 9.00 (I)

E. Non-listed Telephone Numbers 9.00 (I)

F. Vanity Listings ▲ 8.00 (I) (T)

▲ Central Telephone Company of Texas dba CenturyLink concurs in the rates and regulations governing this service.

ISSUED: January 21, 2021 EFFECTIVE: February 1, 2021 TX2021-02

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 5

Original Sheet No. 9

DIRECTORY SERVICES

XI. DIRECTORY ASSISTANCE SERVICE ▲

A. General

1. The Company furnishes local, long distance and national directory assistance whereby customers may request assistance in determining telephone numbers or names associated with directory listings of individuals and/or businesses. Where technically feasible, customers may have their calls to the requested telephone number completed by the automated directory assistance system.

2. A Directory Assistance Service Charge applies when customers request assistance in determining telephone numbers or names in the local calling area in which the customer receives local exchange service (local directory assistance), telephone numbers or names located outside the local calling area but within the customer's Home Numbering Plan Area (HNPA) (long distance directory assistance), or telephone numbers or names that are located outside the customer's HNPA (national directory assistance).

3. Directory assistance call completion is provided with directory assistance at no additional charge where technically feasible. Customers who dial directory assistance service may choose to have the requested telephone number automatically dialed and the call completed by the automated directory assistance system. When the customer receives the requested directory number from the automated directory assistance system, the customer will hear the directory assistance call completion announcement prompt offering to automatically dial the requested number. The customer will be prompted to activate directory assistance call completion by depressing a specific digit on a touch-tone telephone during the Directory assistance call completion announcement prompt. Directory assistance call completion is not available when requesting the name associated with a directory listing.

B. Regulations

1. A maximum of two telephone numbers or names will be provided per directory assistance call. If two telephone numbers are requested in a single directory assistance call, directory assistance call completion is available only for the second telephone number provided.

2. Directory assistance call completion is not available to the following customer groups:

Hospitals Hotels/Motels Prisons/Inmates Wide Area Telecommunications Service (WATS) Interexchange Carriers Mobile Payphone Line Service

▲ Central Telephone Company of Texas dba Embarq concurs in the rates and regulations governing this service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 5 6th Revised Sheet No. 10 Cancels 5th Revised Sheet No. 10

DIRECTORY SERVICES

XI. DIRECTORY ASSISTANCE SERVICE (Continued)

C. Exemptions

1. There is no monthly allowance when making direct dialed local directory assistance inquiries for residential or business customers.

2. Charges for local and long distance Directory Assistance Service are not applicable to calls placed from payphone line service, hospitals and customers who certify that they are unable to use a directory because of a physical, visual or mental handicap. Handicapped customers may obtain this exemption upon their completion and submission of an exemption form supplied by the Company, and the Company’s acceptance of that form. There are no exemptions for national directory assistance calls.

D. Rate Regulations

1. The Directory Assistance Service Charge applies per call even if the customer requests telephone numbers or names that are not published or otherwise not found by the operator or automated directory assistance system or if the call is not completed by the automated directory assistance system (i.e., busy, no answer, customer does not invoke directory assistance call completion or directory assistance call completion is not available).

2. In locations where the customer has the technical capability to direct dial Directory Assistance but places the call by dialing "0", Operator Handled Service Charges will apply in addition to the Directory Assistance Service Charge as specified in E following.

E. Rates

1. Directory Assistance Service Charge, per Directory Assistance call $6.99 (I)

2. When the customer requests Directory Assistance by dialing "0" where the customer has the technical capability to direct dial Directory Assistance, the Operator - Station- to-Station rate specified in Section 2, 1.4.2 of the IntraLATA Services Tariff applies in addition to the Directory Assistance Service Charge.

3. Applicable toll usage charges will apply for completed toll calls in addition to the Directory Assistance Service charge.

ISSUED: January 21, 2021 EFFECTIVE: February 1, 2021 TX2021-02

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 6 (T) 1st Revised Sheet No. 1 Cancels Original Sheet No. 1

SPECIAL CONSTRUCTION AND PROVISION/EXTENSION OF FACILITIES (C)

I. SPECIAL CONSTRUCTION

A. General

1. Special construction consists of a series of regulations that are designed to protect CenturyLink from undue risk associated with specially constructed facilities and allows CenturyLink to recover costs incurred by the construction of the facilities.

2. When special construction of facilities is required, the provisions in this Tariff apply in addition to all terms, conditions, and charges set forth in this and any other appropriate service tariff or Local Terms of Service. All applicable provisions set forth in this Tariff will be implemented by a written agreement prepared by CenturyLink and signed by the customer.

3. The terms, conditions, rates and charges applicable for special construction of CenturyLink facilities which are used to provide services under this Tariff are as follows.

B. Conditions Requiring Special Construction

Special construction is required when suitable facilities are not available to meet a customer's order for service and/or a mutually agreed upon facility forecast and one or more of the following conditions exist:

1. CenturyLink has no other current requirement for the facilities constructed at the customer's request.

2. The customer requests that service be furnished using a type of facility, or via a route, other than that which CenturyLink would otherwise utilize in furnishing the requested service.

3. The customer requests or consents to the construction of more facilities than will be utilized as a result of customer actions.

4. The customer requests construction be expedited resulting in added cost to CenturyLink. (C)

5. The customer requests that temporary facilities be constructed.

6. The cost to construct line extension facilities for one or more subscribers exceeds a prudent investment for CenturyLink.

7. If the customer's actions, e.g. delayed access, result in CenturyLink delaying construction such that the delay results in increased cost of construction e.g. replacing landscaping, boring roadways, etc. the customer is responsible for the additional cost incurred as a result of the delay. Such actions would include expediting construction to provide service which expediting would not have otherwise been needed except for the delay in the start of construction encountered as a result of the customer's actions.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 6 (T) 1st Revised Sheet No. 2 Cancels Original Sheet No. 2

SPECIAL CONSTRUCTION AND PROVISION/EXTENSION OF FACILITIES (C)

I. SPECIAL CONSTRUCTION

B. Conditions Requiring Special Construction (Cont’d)

8. The term "customer" as used in the preceding context also includes those entities, businesses, government agencies or their agents, which request the construction of temporary facilities or create a requirement for the construction of temporary network facilities. The services provided over the temporary facilities may be ordered by and billed to separate end user customers. Examples of such entities or businesses include, but are not limited to, developers, multi-unit property owners, developer agents for homeowner associations, political campaigns, sporting events, concerts, government agencies such as the Federal Emergency Management Agency (FEMA) or the United States Army Corps of Engineers or agents of such agencies or businesses.

C. Ownership of Facilities

Unless specified elsewhere in this Tariff, CenturyLink retains ownership of all specially constructed facilities even though the customer may be required to pay special construction charges.

D. Interval to Provide Facilities

1. Based on available information and the type of service ordered, CenturyLink will establish an objective date for the installation of necessary facilities. The date will be established on an individual case basis and provided to the customer. CenturyLink will make every reasonable effort to assure that the date is met. However, shortage of components, personnel or other factors may lengthen the installation interval.

2. If the scheduled completion date cannot be met due to circumstances beyond the control of CenturyLink, a new completion date will be established and the customer will be notified.

E. Special Construction Involving Interstate and Intrastate Facilities

When special construction involves facilities used to provide both interstate and intrastate services, charges for the portion of the construction used to provide intrastate service shall be in accordance with CenturyLink’s intrastate access tariff(s). Charges for the portion of the construction used to provide interstate service shall be in accordance with CenturyLink Operating Companies interstate tariff(s).

F. Charges of Other Companies

Charges for special construction of facilities provided by another company are developed by the other company and may be applied by CenturyLink under this Tariff on the other company's behalf. (C)

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 6 (T) 1st Revised Sheet No. 3 Cancels Original Sheet No. 3

SPECIAL CONSTRUCTION AND PROVISION/EXTENSION OF FACILITIES

I. SPECIAL CONSTRUCTION

G. Special Construction Charges

Charges are applicable for special construction as follows:

1. Rearrangement and/or Removal Charges

a. When CenturyLink is requested to move, change, rearrange or remove existing plant for which no specific charge is quoted in this Tariff, the person/company at whose request such move or change is made will be required to bear the costs incurred by CenturyLink in complying with the request.

b. Where by statute, ordinance or other legal requirement, existing aerial facilities are required to be relocated underground, CenturyLink will charge the net cost attributable to such relocation to the local exchange subscribers located within the political subdivision or area affected by such statute, ordinance or other legal requirement. This nonrecurring charge (NRC), developed by dividing the total rearrangement and/or removed cost by the total number of subscribers affected by the ordinance, will be billed as a one-time charge via the customer's bill.

c. Engineering costs including any applicable overhead determined by CenturyLink, associated with investigating a request and/or inquiry about the potential need to relocate CenturyLink facilities will be billed to the person/company at whose request such investigation is conducted. This provision will apply when investigative activity occurs and it is determined a relocation of CenturyLink facilities may/will not be required.

2. Expedited Order Charge - An expedited order charge applies when a customer requests that construction be completed on an expedited basis and CenturyLink incurs additional costs. The charge is equal to the difference in the estimated cost of construction on an expedited basis and construction without expediting.

3. Supporting Structures on Private Property - These charges include the costs of planning and building supporting structure on private property. Supporting structure includes poles, conduit, trenching, backfilling and associated costs. In cases where the customer or property owner is unable to provide the structure, CenturyLink, at its discretion, will perform the work and bill the customer or property owner.

4. Service Entrance Facilities - Entrance facilities include all cable and wire required to reach the normal network interface. When, at the request of the property owner or customer, a special route, network location, network arrangement or duplicate facility is required, special construction charges will apply. The charge will be equal to the additional cost above that which would have normally been incurred if the special route, location or arrangement was not required.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 6 Original Sheet No. 4

SPECIAL CONSTRUCTION AND PROVISION/EXTENSION OF FACILITIES

I. SPECIAL CONSTRUCTION

G. Special Construction Charges

Charges are applicable for special construction as follows: (Continued)

5. Temporary Facilities

a. Special Construction is considered to be "temporary" if one of the following conditions exist:

(1) The facilities are constructed to provide service to a customer for less than the minimum service period or less than one month, whichever is longer.

(2) The facilities are constructed and it is known in advance that the newly placed plant will be relocated or removed prior to the end of the normal service life of the plant.

(3) Where a developer, owner or agent, requests or consents to CenturyLink constructing facilities to serve subscribers in a development or multi unit complex and CenturyLink, subsequent to start of construction, determines that the developer, owner or agent has contracted with another service provider which results in the termination of use of CenturyLink’s facilities or the facilities are stranded or underutilized.

b. If a customer desires to change the service requested from temporary to permanent, such a change will be permitted if the request is made before any initial payment for the temporary service is received by CenturyLink. The customer is liable for any special construction charges for the construction of temporary facilities that cannot be reused or transferred to the permanent facilities.

c. The special construction charges for temporary facilities include all nonrecoverable costs associated with the placement and removal of such facilities.

6. Excess Capacity Charge - An excess capacity charge applies when the customer requests more facilities be placed than are required to satisfy the customer’s actual demand for the service. The charge is based on the estimated cost of the unused or underutilized facilities placed to accommodate the customer’s projected demand for the service.

7. Charge for Route or Type Other Than Normal - When the customer requests special construction using a route or type of facilities other than that which CenturyLink would normally use, a monthly recurring charge is applicable. The charge is the difference between the estimated recurring costs of the specially constructed facilities and the estimated recurring costs of the facilities CenturyLink would normally use. The charge will be no greater than the recurring costs of the specially constructed facilities.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 6 Original Sheet No. 5

SPECIAL CONSTRUCTION AND PROVISION/EXTENSION OF FACILITIES

I. SPECIAL CONSTRUCTION

G. Special Construction Charges

Charges are applicable for special construction as follows: (Continued)

8. Lease Charge - A lease charge applies when CenturyLink leases equipment (e.g., portable microwave equipment) in order to provide service to meet the customer's requirements. The amount of the charge is the total added cost to CenturyLink caused by the lease.

9. Excess Costs - When a customer requests service that involves extraordinary conditions or circumstances and the anticipated costs associated with the service provision do not represent a prudent investment for CenturyLink, then a special construction charge is applicable.

10. Payment of Special Construction Charges – Payment of charges applicable for Special Construction will be required prior to the start of any construction related activity.

11. Line Extensions

a. Where telephone facilities are not in place to fulfill an applicant’s request for local telephone service, CenturyLink, at its discretion, may extend its facilities to provide the requested service if the costs of the facility extension represent a prudent investment for CenturyLink.

b. Where the costs to extend facilities to accommodate an applicant’s request for service do not represent a prudent investment, the applicant may be required to pay a line extension charge equal to all or a portion of the construction charges incurred by CenturyLink to extend the facilities. These charges are in addition to the regularly applicable rates and charges to establish service stated in CenturyLink’s Tariff.

c. When the applicant is so located that it is necessary to use private right-of- way/easement to furnish service and CenturyLink is unable to obtain the required right-of-way/easement without cost, the applicant may be required to pay the cost incurred in securing, clearing and retaining such right-of-way. CenturyLink will not proceed with a requested line extension if a satisfactory right-of-way/easement is not provided,

d. For the purpose of this section, costs shall include all material, supplies, engineering, labor, supervision, transportation, and rights-of-way/easements for placing all facilities necessary to provide the requested service, including but not limited to channel equipment, feeder, distribution, and drop facilities, electronics, cards, and any applicable overhead, as determined by CenturyLink.

e. Where a line extension charge is applicable, payment will be required prior to the start of any construction related activity.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 6 Original Sheet No. 6

SPECIAL CONSTRUCTION AND PROVISION/EXTENSION OF FACILITIES

II. EXTENSION OF FACILITIES TO SERVE RESIDENTIAL DEVELOPMENTS

A. Terms and Conditions

1. The terms and conditions in this section apply for the following developments:

a. Developments for the purpose of constructing single-family detached dwellings or two- family dwellings; multifamily dwellings; or a mix of single-family detached, two-family dwellings and multifamily dwellings.

b. Developments for mobile home lots that are individually owned. CenturyLink will provide facilities to a post provided by the owner of the mobile home or mobile home park. The post shall meet the specifications of CenturyLink.

c. RV parks platted for long-term residence. CenturyLink will provide facilities to a post provided by the owner of the RV park. The post shall meet the specifications of CenturyLink.

2. For the purpose of this section, a dwelling is any building or portion thereof which is designed or used exclusively for residential purposes. A single-family detached dwelling is designed for and occupied by not more than one family. A two-family dwelling contains two attached dwelling units, designed for and occupied by not more than two families (also called a duplex). A multifamily dwelling is a dwelling containing three or more dwelling units, designed for and occupied by an equal number of families.

3. The following do not fall under the provisions of this section.

a. Developments containing less than four single or two-family residential lots. These will be treated according to the terms set forth in CenturyLink’s line extension policy in effect at the time.

b. Marinas.

c. Mobile home parks, except as defined in A.1.b. of this Tariff.

d. RV parks, except as defined in A.1.c. of this Tariff.

4. A developer’s request to CenturyLink to extend facilities to provide service to a residential development shall include, but is not limited to, the following information: a description of the development; an addressed, recorded plat; trench and backfill requirements; reasonable and necessary or otherwise mutually agreed upon requirements for easements, rights-of-way and other similar rights to access the property that are satisfactory to CenturyLink and provided without cost to CenturyLink.

The terms and conditions associated with serving each residential development may vary as appropriate and may include provisions that are different from or additional to those in this section.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 6 Original Sheet No. 7

SPECIAL CONSTRUCTION AND PROVISION/EXTENSION OF FACILITIES

II. EXTENSION OF FACILITIES TO SERVE RESIDENTIAL DEVELOPMENTS

A. Terms and Conditions (Continued)

5. Developer/Builders’ Responsibilities and Charges

a. When a Developer/Builder requests that CenturyLink construct facilities to serve a residential development, the Developer/Builder will be required to disclose whether or not the Developer/Builder has an arrangement or agreement with another provider to provide communications, facilities and services. If the Developer/Builder has entered into an arrangement or agreement with another provider, CenturyLink is not required to place facilities to and within the development. CenturyLink may agree to place facilities within the development under mutually agreeable terms and conditions.

b. If paragraph a. preceding does not apply, the following charges and responsibilities shall apply:

(1) The Developer/Builder will provide, without expense to CenturyLink, trench and backfill based on the specifications provided by CenturyLink for the facilities within the development. The Developer/Builder will also provide, as specified by CenturyLink and without expense to CenturyLink, conduit with adequate pull string for the service drop from the serving pedestal or property line to the dwelling. In areas where CenturyLink has trench and backfill agreements with other utilities, the Developer/Builder is responsible for CenturyLink’s trench and backfill costs.

(2) The Developer/Builder shall provide at no cost to CenturyLink a legally sufficient easement to accommodate the placing and maintenance of the facilities (e.g. distribution cables plus terminal pedestals or like devices and access point cabinet) throughout the development. The surface of the easements shall be brought to final grade prior to the installation of buried or underground facilities.

(3) Where CenturyLink deems it necessary or desirable to use private and/or government right-of-way to place facilities to and within the development, such Developer/Builder shall be required to provide or pay the cost of providing such right-of-way in addition to any other applicable charges. The route established shall be determined by CenturyLink.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 6 Original Sheet No. 8

SPECIAL CONSTRUCTION AND PROVISION/EXTENSION OF FACILITIES

II. EXTENSION OF FACILITIES TO SERVE RESIDENTIAL DEVELOPMENTS

A. Terms and Conditions

5. Developer/Builders’ Responsibilities and Charges (Continued)

b. If paragraph a. preceding does not apply, the following charges and responsibilities shall apply: (Continued)

(4) If in the opinion of CenturyLink, construction to and within the development does not constitute a prudent investment, the Developer/Builder will assume that portion of the construction costs that exceed a prudent financial contribution by CenturyLink. For the purpose of this section, construction costs are defined in A.6.

(5) The Developer/Builder may request an engineering quote to be performed to establish an estimated construction charge by CenturyLink. For the purpose of this section, CenturyLink will provide an engineering quote of the construction charges to the Developer/Builder for a fee of $300. All quotes are valid for thirty (30) days from the date they are presented to the Developer/Builder. This fee is non-refundable.

(6) All costs payable by the Developer/Builder shall be paid prior to the start of any construction.

6. For the purpose of this section, construction costs shall include all material, supplies, engineering, labor, supervision, transportation, and rights-of-way for placing and removal of all facilities necessary to provide service to and within the development, including but not limited to channel equipment, feeder, distribution, and drop facilities, and any applicable overhead, as determined by CenturyLink.

7. For the purpose of this section, facilities means feeder facilities and distribution facilities, including but not limited to the communications cable, wire, standard network interfaces, pedestals and terminals necessary to enable end-users to arrange to have communications services to their living unit activated in the future from a standard network interface, as well as any necessary structures including but not limited to communications conduit, sleevings, and pull strings. Title to all facilities placed by or for the benefit of CenturyLink to provide services to the development shall belong solely to CenturyLink.

8. The Company will not provide facilities at the request of a Developer/Builder within new developments which meet the conditions listed in this section, absent the execution of a written agreement.

9. To the extent that the terms and conditions in this section conflict with any terms and conditions of any other section within this Tariff, the terms and conditions set forth in this section and/or a written agreement shall control.

B. Developer Non-Participation

If a Developer/Builder does not accept the terms and conditions in this section, the Company, at its option, may accept requests for service from individual customers in the subdivision/development area as provided for in CenturyLink’s line extension policy in effect at that time.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 6 Original Sheet No. 9

SPECIAL CONSTRUCTION AND PROVISION/EXTENSION OF FACILITIES

III. PROVISION OF FACILITIES TO SERVE COMMERCIAL DEVELOPMENTS AND STRUCTURES

A. The terms for extending service onto commercial developments and/or commercial structures are detailed below. Where a building or property is mixed residential/commercial, the rules for commercial developments will apply.

B. When a Developer requests that the Company construct facilities to serve a commercial development, the Developer will be required to disclose whether or not the Developer has an arrangement or agreement with another provider to provide communications, facilities and services. If the Developer has entered into an arrangement or agreement with another provider, CenturyLink is not required to place facilities to and within the development. CenturyLink may agree to place facilities within the development under mutually agreeable terms and conditions.

C. Where a Developer requests that the Company construct facilities to provide service to a new commercial development/structure, and the financial risk, in the judgment of CenturyLink, does not constitute a prudent investment, the Developer will assume that portion of the construction costs that exceeds a prudent financial contribution by CenturyLink.

D. The Developer may be the property owner, the owner’s agent, contractor, developer, or any legally authorized individual, company, or corporation acting on behalf of the property owner with the authority to bind the property owner.

E. For the purpose of this section, construction costs shall include all material, supplies, engineering, labor, supervision, transportation, and rights-of-way for placing and removal of all facilities necessary to provide service to and within the development, including but not limited to channel equipment, feeder, distribution, and drop facilities, and any applicable overhead, as determined by CenturyLink.

F. For the purpose of this section, facilities mean feeder facilities and distribution facilities, including but not limited to the communications cable, wire, standard network interfaces, pedestals and terminals necessary to enable end-users to arrange to have communications services to their unit activated in the future from a standard network interface, as well as any necessary structures including but not limited to communications conduit, sleevings, and pull strings. Title to all facilities placed by or for the benefit of CenturyLink to provide services to the development shall belong solely to CenturyLink.

G. All costs payable by the Developer shall be paid prior to the start of any construction.

H. The terms and conditions associated with the provision of facilities to serve a commercial development/structure will be specified on an individual case basis and agreed to by CenturyLink and the Developer. This will include the requirements of the Developer and CenturyLink with respect to easements, rights-of-way, conduit systems, entrance conduit, trench and backfill, surface grading, facilities demarcation, conduit within commercial structures, intra-building facilities distribution, equipment rooms, electrical, grounding, etc., as the case may be. Specific requirements will be communicated to the property owner and/or Developer as needed prior to the construction of any facilities.

I. The terms and conditions of each agreement for provision of facilities to serve a commercial development/structure may vary as appropriate and may include provisions that are different from or additional to those in this section.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 7

Original Sheet No. 1

GENERAL RULES AND REGULATIONS

I. INTRODUCTION

A. The rules and regulations specified herein are in addition to the rules and regulations contained in other sections of the General Exchange Tariff, or in the Local Exchange Tariff.

B. The General Exchange Tariff includes the rules, regulations, rates and charges for telephone service applicable uniformly in all exchanges in which the Company operates. The Local Exchange Tariff includes the rates and charges for the service and facilities furnished in a particular exchange.

C. The Rules and Regulations hereby established apply uniformly in all exchanges and are, therefore, made a part of the Company's General Exchange Tariff.

D. Exchange telephone service is the furnishing of facilities for telecommunications within an exchange in accordance with the regulations and system of charges specified in this General Exchange and the Local Exchange Tariffs.

II. RESPONSIBILITY OF THE TELEPHONE COMPANY

A. The responsibility of the Company is limited to the furnishing and maintaining of facilities required for communication between its customers. The Company undertakes to furnish and to maintain in proper working order facilities to be used for communications between its customers. The Company does not relay, interpret, or transmit messages.

B. The Telephone Company will not transmit messages, but offers the use of its facilities when available, and will not be liable for errors in transmission or for failure to establish connections. Employees of the Telephone Company are forbidden to accept either oral or written messages to be transmitted over the lines of the Company.

III. LIABILITY OF THE TELEPHONE COMPANY

A. The liability of the Telephone Company for damages arising out of mistakes, omissions, interruptions, delays, errors or defects in transmission occurring in the course of furnishing service or facilities and not caused by negligence of the customer shall in no event exceed an amount equal to the proportionate charges to the customer for the period of service during which such mistake, omission, interruption, delay, error or defect in transmission occurs.

B. In view of the possibility of errors and difficulties in the transmission of messages by telephone and the impossibility of fixing in all cases the causes thereof, the customer assumes all risks connected with the service, as the Telephone Company cannot guarantee uninterrupted working of its lines and facilities. For allowances for service interruptions see Section 7, Paragraph XVI., A. No other liability shall in any case be attached to the Telephone Company.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 (T) First Revised Sheet No. 2 Cancels Original Sheet No. 2

GENERAL RULES AND REGULATIONS

III. LIABILITY OF THE TELEPHONE COMPANY (Continued)

C. The Telephone Company's liability, if any, for its gross negligence or willful misconduct is not limited by this tariff.

D. The Telephone Company will make reasonable efforts to cure any material failure to provide service caused solely by year 2000 defects in Telephone Company hardware, software or systems. Due to the interdependence among telecommunications providers and the interrelationship with non-Telephone Company processes, equipment and systems, the Telephone Company is not responsible for failures caused by circumstances beyond its control including, but not limited to, failures caused by: (1) the Customer; (2) other telecommunications providers; or (3) customer premises equipment. In addition, the Telephone Company does not ensure compatibility between Telephone Company and non- Telephone Company services used by the Customer.

E. Unauthorized Access and Hacking - Except for physical damage to Customer’s (N) transmission facilities or Customer premise equipment directly caused by the Company’s negligence or willful misconduct, the Company is not responsible for unauthorized access to, or alteration, theft, or destruction of, Customer’s equipment, data, programs or other information through accident, wrongful means or any other cause while such information is stored on or transmitted across Company-provided network facilities or Customer premise equipment. Customer is responsible for any Company service or usage charges resulting from any such unauthorized access, unless a tariff, schedule or other written agreement expressly states otherwise. (N)

IV. APPLICATIONS FOR SERVICE

A. Application for service or requests from customers for additional service or changes in the grade or class of service become contracts when received by the Company and are subject to the minimum contract term. The Telephone Company reserves the right to require application for service made in writing on forms supplied by the Company.

B. Requests by customers for additional service or facilities in connection with the original contract may be made verbally.

C. Terms and conditions of such contracts are subject to the rules and regulations in this General Exchange Tariff and the Local Exchange Tariffs for the exchange or exchanges in which service is furnished.

D. The Telephone Company's obligation to furnish service to an individual customer is dependent upon the Company's ability to secure and retain suitable rights for construction and retain suitable rights for construction and maintenance of the necessary facilities.

E. Any change in rates, rules or regulations lawfully made effective by the Telephone Company shall, to that extent, act as a modification of all contracts.

F. Unless otherwise specified, the minimum term for which service will be furnished is one month commencing with the date of installation of the service.

G. Failure of the customer to comply with the Rules and Regulations as contained in the Company's General and Local Exchange Tariffs, abandonment of the service, or nonpayment of charges due for the rendition of basic local exchange service constitute termination of the contract, and the Company may discontinue service and remove its facilities.

1. The Company may discontinue service for the nonpayment of long distance charges incurred after toll blocking was imposed.

2. Lifeline Service will not be discontinued for the nonpayment of long distance charges incurred after toll blocking was imposed.

ISSUED: March 22, 2010 EFFECTIVE: April 1, 2010

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 7

Original Sheet No. 3

GENERAL RULES AND REGULATIONS

IV. APPLICATIONS FOR SERVICE (Continued)

H. The Telephone Company reserves the right to cancel any contract for service with, and to discontinue service to, and to disconnect its property from the premises of such person who uses or permits the use of profane, obscene or grossly abusive language on or by means of the Company's facilities, and who, after reasonable notice, fails, neglects, or refuses to cease or refrain from such practice or to prevent the same.

V. OWNERSHIP AND MAINTENANCE OF EQUIPMENT

A. Lines and facilities furnished by the Telephone Company, for the use of a customer or authorized users, are the property of the Telephone Company, and are provided upon the condition that such lines and facilities, except as expressly provided for in this Tariff, must be installed, relocated and maintained by the Telephone Company, and that the Company employees, and agents, may enter said premises at any reasonable hour to make collections from coin boxes, to install, inspect or repair any part of the Telephone Company's lines and facilities. Such facilities shall not be used for any toll or consideration to be paid by any other person other than the customer, nor for the performing of any part of the work of transmitting, delivering or collecting any message, where any toll or consideration has been or is to be paid any party other than the Telephone Company, without the written consent of the Company.

B. All ordinary expense of maintenance and repairs to telephone company facilities, unless otherwise specified in the General Exchange Tariff or the Local Exchange Tariffs, is borne by the Telephone Company. The customer is billed the cost for facilities injured or destroyed otherwise than by unavoidable accident.

C. When suitable arrangements can be made, lines of other telephone companies may be used in conjunction with the Telephone Company's lines in establishing wire connections to points not reached by the Telephone Company's lines. In establishing connections with the lines of other companies, the Telephone Company will not be responsible or liable for any action of the connecting company.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 7

Original Sheet No. 4

GENERAL RULES AND REGULATIONS

V. OWNERSHIP AND MAINTENANCE OF EQUIPMENT (Continued)

D. Use of Telephone Company facilities or service in connection with automatic announcement service, automatic answering and recording service, recorder-coupler service or miscellaneous devices for recorded public announcements are subject to the following conditions:

1. For purposes of identification, customers of the company who transmit recorded public announcements over facilities provided by the Company must include in the recorded message the name of the organization or individual responsible for the service and the address at which those responsible for the transmitted recorded announcement may be contacted.

2. Customers transmitting factual public announcements such as Time, Stock Market quotations, Airline Schedules and similar information are excluded from the preceding condition.

3. Non-published telephone service will not be furnished for use with recorded public announcements.

4. Failure to comply with the provisions of this Tariff shall be cause for termination of the service.

VI. FOREIGN ATTACHMENTS

A. Devices provided by the customer to obtain quietness or privacy may be used, provided any such device does not involve direct electrical connection to the facilities of the Telephone Company, except as provided for in other sections of this tariff.

B. The provisions of Paragraph VI.A preceding shall not be construed or applied to bar a customer from using devices which serves his convenience in his use of the facilities of the Telephone Company in the service for which they are furnished under this Tariff, provided any such device so used, in the opinion of the Company, would not endanger the safety of Telephone Company employees or the public; damage, require change in or alternation of, or involve direct electrical connection to (except as provided for in other sections of this tariff) other facilities of the Telephone Company; or interfere with the proper functioning of such facilities; or impair the operation of the telephone system or otherwise injure the public in its use of the Telephone Company's services.

C. Except as otherwise provided in this Tariff, nothing herein shall be construed to permit the use of a recording device, or of a device to interconnect any line or channel of the Telephone Company with any other communication line or channel of the Company or of any other person.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 7

Original Sheet No. 5

GENERAL RULES AND REGULATIONS

VII. DEFACEMENT OF PREMISES

A. No liability shall be attached to the Telephone Company by reason of any defacement or damage to the customer's premises, resulting from the placing of the Company's facilities, on such premises, or by the removal thereof, when such defacement or damage is not the result of negligence on the part of the Company or its employees.

B. The Telephone Company shall not be liable for damage or statutory penalties in any case where a claim is not presented in writing within 30 days after the alleged delinquency occurs.

VIII. USE OF SERVICE BY CUSTOMER

A. The service is furnished only to the customer who has contracted for it or to members of his household, or to his employees in case of business service. Except as provided in this Company's Tariffs the service or facilities furnished by the Telephone Company shall not be used for any purpose for which a payment or other compensation shall be received by the customer from any other person, firm or corporation for such use or in the collection, transmission or delivery of any communication for others. The contract or any rights acquired thereunder by the customer may not be assigned or in any manner transferred.

B. Service and facilities will not be furnished, or if being furnished will be discontinued if any law enforcement agency, acting within its jurisdiction, advises that such service is being or will be used in violation of the law.

C. Business and residence rates are applied in accordance with the character of use made of the service and facilities as indicated in the General Exchange Tariff. This consideration is, in all cases, the basis upon which the rates for any particular service are classified, and any indices of such character of use should be applied with this primary definition in mind.

1. Business Classification

Business rates apply whenever the use of the service is substantially of an occupational nature, including professional and institutional use as well as strictly commercial use. The readiest index of such use is the character of the location at which the service is furnished. In general, the use may be assumed to be of an occupational nature, and business rates apply at the following locations:

a. Offices, stores, factories, and all other places of a strictly commercial or professional nature.

b. Locations for the convenience in administration of federal, state, or other governments, schools and colleges, libraries, and other institutions.

c. Residences (or residential premises at hotels, rooming houses, etc.), where an office is maintained within the premises or where an office, shop, or other place of business is adjacent to the residential premises with a connecting door or other opening between the two, or where the residence serves as a headquarters for a commercial, institutional, or professional pursuit.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 7 First Revised Sheet No. 6 Cancels Original Sheet No. 6

GENERAL RULES AND REGULATIONS

VIII. USE OF SERVICE BY CUSTOMER (Continued)

C. Business and residence rates are applied … (Continued)

1. Business Classification (Continued)

d. When the telephone number is habitually advertised in connection with a business, business rates apply, except that where a business telephone number is advertised with a telephone number in a residence given as an alternate call number, other indices of the substantial character of use at the residence should be used.

e. An important index of the character of use of the service is usually found in the application of the customer as to the form of the directory listing desired. In most all cases where commercial or professional designations are desired, the use may be presumed to be of an occupational nature.

f. Residence locations where the customer subscribes to Rotary Hunting (N) Line Service for more than five (5) residential lines at the same or different locations. (N)

2. Residence Classification

Residence rates apply whenever the use of the service is of a social and domestic nature and provided that the service is not used substantially for occupational purposes. Residential Rates apply under the following conditions:

a. The determination of the proper classification of service at the residence of certain classes of customers is particularly difficult. Accordingly, the following general instructions have been drawn up for application in specific instances where there may be some question as to the character of use:

1) Physicians, Surgeons, Dentists, etc.--In the case of the physician, surgeon, dentist, veterinary surgeon, chiropractor, osteopath, or other medical practitioner, and of Christian Science practitioner, or other person actively engaged in a professional pursuit, business rates apply to telephone service installed in his office, whether this office is located on his residence or in another building. When a practicing physician is not a customer to, or joint user of business service, or a habitual user of it at another location, as at a hospital, there is a presumption of substantial business use of any service in his name at his residence, although such circumstances cannot be considered conclusive. When listing is requested of an abbreviated title clearly indicative of the customer's profession (M.D., D.D.S., D.V.S., C.S., etc.), the use of the service should be considered as of an occupational nature. However, a simple abbreviation title such as is ordinarily used in addressing the individual concerned, i.e., "Dr.", is not considered as clearly indicative of a substantial occupational use of the service.

ISSUED: January 30, 2009 EFFECTIVE: March 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 7 First Revised Sheet No. 7 Cancels Original Sheet No. 7

GENERAL RULES AND REGULATIONS

VIII. USE OF SERVICE BY CUSTOMER (Continued)

C. Business and residence rates are applied … (Continued)

2. Residence Classification (Continued)

a. The determination of the proper classification … (Continued)

2) Use of lake house, farm, ranch, town house and other similar designations in a customers listing does not clearly indicate occupational use of the service, and unless, after investigation, the service is not to be used substantially for business purposes residence rates apply. A listing, such as Circle T Ranch, where the customer is engaged in the buying and selling of cattle and consistently uses any form of advertising, the use is considered of an occupational nature and business rates apply.

3) Nurses--Service at the residence or room of a nurse may be furnished on a residence basis. The designation "Nurse" or "R.N." may be included in the directory listing.

4) Schools, Colleges, Clubs, Fraternal Organizations, etc. The use of telephone service in administrative offices, and at other locations when installed for the convenience of officers and employees of schools, colleges, clubs, hotels, fraternal organizations, hospitals, etc., when the service is not available for the use of the general public may be presumed to be substantially of an occupational nature. Where a main station service is provided in any apartment, suite or room in any building or a college, club, etc., which is occupied by the customer, and to which the general public or the members of the organization do not have general access, the use of the service may, except as under paragraph 2.a.1), be presumed to be of a social and domestic nature, and residence rates would apply. The usage of telephone service in rooms and halls utilized by the lodges and like fraternal organizations for meeting purposes, which are open only during such times as meetings are being held, and which do not have associated with them club rooms open to members at other than times of meetings, is presumed to be of a social nature, and residence rates apply. Individual line service only should be furnished. The service may be listed in the name of the lodge of fraternal organization.

5) Residence rates apply in churches where the telephone is not accessible for public patronage, as in pastors' studies.

6) Residence rates apply when customers located at private residences (N) subscribe to Call Forward Busy in lieu of Rotary Hunting Line Service for up to and including five (5) residential lines, at the same or different residential locations, as long as the service is used primarily for domestic purposes. (N)

ISSUED: January 30, 2009 EFFECTIVE: March 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 7

Original Sheet No. 8

GENERAL RULES AND REGULATIONS

IX. TELEPHONE DIRECTORIES

A. Directories are the property of the Telephone Company and are loaned to customers only as an aid to the use of the service. Customers may only use with or attach to directories furnished by the Telephone Company, binders, holders, inserts, auxiliary covers or attachments which do not contain advertising and which are not so attached as to impede reference to essential service information or otherwise interfere with service. No other binders, holders, inserts, auxiliary covers or attachments of any kind not furnished by the Telephone Company shall be attached to or used with directories furnished by the Telephone Company nor shall any customer to the Telephone Company's service induce or encourage violation of this provision by distributing, disseminating or otherwise making available to other customers to the Company's service any binders, holders, inserts, auxiliary covers or attachments, the attachment or use of which by such customers would be a violation of this provision.

B. A copy of the directory will be furnished to each customer access line served by that directory, and if requested, additional copies will be provided.

C. Directories of other localities, if available, will be furnished at cost upon request of the customer.

D. No liability whatsoever shall be attached to or assumed by the company for any errors or omissions in the compiling, printing, or distributing of its directories.

X. TELEPHONE NUMBERS

A. The ownership of all telephone numbers is vested in the Telephone Company and the Telephone Company reserves the right to change the telephone number or numbers of the customers' telephones, or the central office name associated with such numbers, or both as the operation of the business may require.

B. Numbers assigned or held at the request of any individual or firm for contemplated use in the future will be charged 50% of the established local exchange monthly access rate applicable, dating from the date the request is made and continuing thereafter until service is established or until notice is given in writing to the Telephone Company for cancellation of the request. Exception is made when, at the option of the Telephone Company, numbers are assigned in advance for customers whose service is expected to be established as soon as facilities are available and the time element will permit.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 7

Original Sheet No. 9

GENERAL RULES AND REGULATIONS

XI. DEPOSITS

A. If it is deemed necessary by the Telephone Company, applicants for service or present customers may be required to make a deposit of an amount deemed sufficient by the Company to protect it from unpaid bills.

1. Lifeline subscribers who voluntarily elect to receive Toll Restriction Services are not required to pay a deposit.

2. No deposit is required from a residential applicant who is applying for Prepaid Local Telephone Service (PLTS).

B. An applicant for service, or a present customer, may satisfy a deposit requirement by providing a Contract of Guaranty in an amount not less than the requested deposit, from a present customer acceptable to the Telephone Company. The Guaranty Contract shall be on a form provided by the Telephone Company which shall include the Company's right to transfer charges from a defaulted bill of the customer from whom a deposit or Contract of Guaranty was required to the Guarantor's account or accounts and the further right to suspend the Guarantor's service as provided in this tariff.

XII. RESPONSIBILITY OF CUSTOMERS

A. The customer shall pay monthly in advance or on demand, all charges for exchange service and shall pay on demand all charges for toll service. The customer assumes responsibility for all charges for exchange service and toll messages originating at the customer's access line, and for toll messages received at the customer's access line on which the charges have been reversed with the consent of the person called.

B. All charges due by the customer are payable by the customer at the Telephone Company's Commercial Business Office or at any other agency duly authorized to receive payments. If objection in writing is not received by the Telephone Company within 30 days after the bill is rendered, the amount shall be deemed correct and binding upon the customer.

C. The Telephone Company may either suspend service or terminate the customer's contract without suspension of service or, following a suspension of service, sever the connection and remove its facilities from the customer's premises upon:

1. Abandonment of the service.

2. Failure of a customer to make suitable deposit required by the Telephone Company as authorized by this Tariff.

a. No deposit is required from a residential applicant who is applying for Prepaid Local Telephone Service (PLTS).

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 7

Original Sheet No. 10

GENERAL RULES AND REGULATIONS

XII. RESPONSIBILITY OF CUSTOMERS (Continued)

C. The Telephone Company may either... (Continued)

3. Impersonation of another with fraudulent intent.

4. Listening in on party line conversations.

5. Non-payment of any sum due for basic local services provided in this tariff.

a. Residential subscribers will not be disconnected for nonpayment of toll charges.

b. Non-residential subscribers may be disconnected for nonpayment of toll charges.

c. Subscribers may be disconnected for nonpayment of toll charges incurred after toll blocking was imposed.

d. Lifeline subscribers will not be disconnected for nonpayment of toll charges incurred after toll blocking was imposed.

6. Use of service in such a way as to impair or interfere with the service or other customers; such improper use includes, but is not limited to, the making of nuisance calls and the use of telephone service by a customer, or with his permission, in connection with a plan or contrivance to secure a large volume of telephone calls, to be directed to such customer at or about the same time resulting in preventing, obstructing, or delaying the telephone service or others.

7. Any other violation of the Telephone Company's rules and regulations applying to customer's contracts or to the furnishing of service.

8. Specific discontinuance of service regulations apply to customers who subscribe to Prepaid Local Telephone Service (PLTS) as described in Section A of the Local Exchange Tariff.

9. Violation of Part 68 of the F.C.C. Rules and Regulations pertaining to connection of F.C.C. registered terminal equipment. Such violations may cause a temporary discontinuance of service.

10. The use of service or facilities of the Telephone Company to transmit a message or to locate a person or otherwise to give or obtain information without payment of a long distance charge.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 3rd Revised Sheet No. 11 Cancels 2nd Revised Sheet No. 11

GENERAL RULES AND REGULATIONS

XII. RESPONSIBILITY OF CUSTOMERS (Continued)

D. Should service be suspended for non-payment of charges, restoration of service will be made only as prescribed under Section 19 of the General Exchange Tariff or Section A of the Local Exchange Tariff.

E. When service has been discontinued for non-payment, the contract is considered to have been terminated. Re-establishment of service may be made only upon the execution of a new contract or as prescribed under Section A of the Local Exchange Tariff.

F. When service has been suspended or discontinued for nonpayment, payments shall first be allocated to charges for basic local service provided in the General Exchange Tariff, as described under Section 19 of the General Exchange Tariff.

G. The Company may refuse to serve a customer if the customer’s installation, repair or equipment is known to be hazardous or of such character that satisfactory service cannot be given.

In the event the Company refuses to serve a customer, the Company will inform the customer of the reasons for its refusal in accordance with Substantive Rule §26.23.

H. Any customer subscribing to Business services under this tariff (a “Business Customer”) is responsible for all collections costs, including but not limited to attorneys fees, incurred by the Company in recovering any amounts due and owing to the Company by the Business Customer. In the event of the Business Customer's bankruptcy, the Company may assert its claim for collections costs and attorneys' fees under this tariff as a claim against the Business Customer's bankruptcy estate.

I. Customer will defend and indemnify the Company, its affiliates, agents and contractors from all third party claims, liabilities, fines, penalties, costs and expenses, including reasonable attorneys’ fees, arising from or related to customer’s, customer’s end user’s or customer’s third-party provider(s)’ acts, omissions (including the failure to purchase or implement features that enable the receipt and transmission of direct-dial “911” calls or multi-line telephone system notifications), or failures of connectivity that impede, prevent or otherwise make inoperable the ability of the customer or its end users to directly dial “911” or to receive or transmit multi-line telephone system notifications, as required by law, in the United States. (N) J. Customer will defend and indemnify the Company, its affiliates, agents and contractors from all third party claims, liabilities, fines, penalties, costs and expenses, including reasonable attorneys’ fees, arising from or related to any acts or omissions by the customer, customer’s end users or customer’s third party providers that cause, give rise to or bring about the non-compliance of the service with (N) appliable law, including the failure to purchase or implement features that enable compliance with laws.

ISSUED: April 9, 2021 EFFECTIVE: June 1, 2021 TX2021-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 1st Revised Sheet No. 11.1 Cancels Original Sheet No. 11.1

GENERAL RULES AND REGULATIONS

XII. RESPONSIBILITY OF CUSTOMERS (Continued)

K. Multi-Line Telephone Systems (T)

1. Pursuant to 47 CFR §9.16(b)(1) and (2), multi-line telephone systems connected to the (T) Company’s network which were manufactured, imported, sold, leased or installed after February 16, 2020 must be configured to:

● allow an end user to directly initiate a “911” call from any station equipped with dialing facilities, without dialing any additional digit, code, prefix, or post-fix, including any trunk- access code such as the digit 9, regardless of whether the user is required to dial such a digit, code, prefix, or post-fix for other calls, and

● provide MLTS notification to a central location at the facility where the system is installed or to another person or organization regardless of location, if the system is able to be configured to provide the notification without an improvement to the hardware or software of the system.

MLTS notification must (1) be initiated contemporaneously with the 911 call, provided that it is technically feasible to do so; (2) not delay the call to 911; and (3) be sent to a location where someone is likely to see or hear it.

Customers who connect multi-line telephone systems to the Company’s facilities must agree to defend and indemnify the Company for acts and omissions resulting in non-compliance, as described in Section 7.XII.I. (M) 2. Pursuant to 47 C.F.R. § 9.16(b)(3), a person engaged in the business of installing (N) MLTS may not install such a system in the United States unless it is configured such that it is capable of being programmed with and conveying the dispatchable location of the caller, as defined in 47 C.F.R. § 9.3, to the PSAP with 911 calls consistent with the requirements below. A person engaged in the business of managing or operating MLTS may not manage or operate such a system in the United States unless it is configured such that the dispatchable location of the caller, as defined in 47 C.F.R. §9.3, is conveyed to the PSAP with 911 calls consistent with the following requirements:

• On-premise fixed telephones associated with a MLTS must provide dispatchable location by January 6, 2021;

• No later than January 6, 2022, on-premise non-fixed telephones associated with a MLTS must provide dispatchable location where technically feasible, otherwise they shall provide dispatchable location based on end user manual update or on alternative location information as defined in 47 C.F.R. § 9.3; (N)

(M) Material was moved to Sheet 11.2.

ISSUED: April 9, 2021 EFFECTIVE: June 1, 2021 TX2021-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 Original Sheet No. 11.2

GENERAL RULES AND REGULATIONS

XII. RESPONSIBILITY OF CUSTOMERS

K. Multi-Line Telephone Systems (Continued)

2. Pursuant to 47 C.F.R. § 9.16(b)(3)…the following requirements: (Cont’d)

• No later than January 6, 2022, off-premise non-fixed telephones associated with a MLTS must provide dispatchable location where technically feasible, otherwise they shall provide dispatchable location based on end user manual update, or enhanced location information which may be coordinate based and consisting of the best available location that can be obtained from any available technology or combination of technologies at reasonable cost.

• Additionally, providers of fixed telephony services shall provide automated dispatchable location with 911 calls beginning January 6, 2021 pursuant to 47 C.F.R. § 9.8. Providers of interconnected VoIP service must comply with the location requirements under 47 C.F.R. § 9.11(b)(iv) for non-fixed services as of January 6, 2022. Customers to DID Service capable of accessing 911 emergency services shall be responsible for providing automated dispatchable location information as defined in 47 C.F.R. § 9.3 and for maintaining the accuracy of that information for fixed services as of January 6, 2021 and for non-fixed services where technically feasible as of January 6, 2022. • Customers, particularly private switch owners, private branch exchange owners, and customers of DID service, may need to purchase additional features or services to comply with the dispatchable location provisions of RAY BAUM’s Act. Dispatchable location capability may require Customers to purchase private switch automatic location identification (PS/ALI) service from the Company or from a third-party provider.

XIII. RIGHTS-OF-WAY (SPECIAL OR PRIVATE)

A. The Telephone Company shall not be liable for failure to furnish service, unless the purchase price and costs expended by the Telephone Company in acquiring such special or private rights-of-way by purchase or condemnation be paid or guaranteed to the Telephone Company by the customer. The rights-of-way here referred to are only those rights-of-way leading from the main line to the premises of the customer.

XIV. SECRECY OF COMMUNICATIONS

A. The customer has the right to absolute privacy of his communications and the Telephone Company shall at all times safeguard this right in dealing with the customer's conversations, communications, or records. Secrecy of communications is a fundamental policy of the (M) Company and is protected by federal and state laws.

(M) Material was moved from Sheet 11.1.

ISSUED: April 9, 2021 EFFECTIVE: June 1, 2021 TX2021-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 Original Sheet No. 11.1

GENERAL RULES AND REGULATIONS

XII. RESPONSIBILITY OF CUSTOMERS (Continued)

J. Multi-Line Telephone Systems

Pursuant to 47 CFR §9.16(b)(1) and (2), multi-line telephone systems connected to the Company’s network which were manufactured, imported, sold, leased or installed after February 16, 2020 must be configured to:

XIV. SECRECY OF COMMUNICATIONS

A. The customer has the right to absolute privacy of his communications and the Telephone Company shall at all times safeguard this right in dealing with the customer's conversations, communications, or records. Secrecy of communications is a fundamental policy of the Company and is protected by federal and state laws. (M)

(M) Material was moved from Sheet 11.

ISSUED: September 15, 2020 EFFECTIVE: December 16, 2020 TX2020-15

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 (T) Second Revised Sheet No. 12 Cancels First Revised Sheet No. 12

GENERAL RULES AND REGULATIONS

XV. IMPAIRMENT OF SERVICE DUE TO CUSTOMER-CONNECTED EQUIPMENT

A. Customers will be billed the charge specified in the Service Charge Section of this tariff for each service call to the customer's premises when service is impaired due to the connection of customer-provided equipment or facilities.

1. The customer indemnifies and saves harmless the Telephone Company against claims, losses, suits for injury to or death of any persons, or damage to any property which arises from the use, placement or presence of Telephone Company, facilities on the customer's premises. The customer indemnifies and saves harmless the Telephone Company against claims for libel, slander or the infringement of copyright arising directly or indirectly from the material transmitted over the facilities of the Telephone Company or the use thereof by the customer; against claims for infringement of patents arising from combining with or using in connection with, facilities furnished by the Telephone Company, and apparatus, equipment and systems provided by the customer; and against all other claims arising out of any act or omission of the customer in connection with the services or facilities provided by the Telephone Company.

XVI. SERVICE GUARANTEES

A. In the event a customer's service is interrupted other than by a disaster, or by the negligence or willful act of the customer, appropriate adjustments or refunds shall be made to the customer.

B. Out of Service

If an out-of-service trouble report is cleared within 24 hours, there will be no credit to the (C) customer.

If an out-of-service trouble report is not cleared within 24 hours, the customer will receive a (C) credit equal to one-half month's worth of charges for local service(1).

If an out-of-service trouble report is not cleared until after 72 hours, the customer will (C) receive a credit equal to one (1) month's worth of charges for local service(1).

C. Trouble Reports

In any exchange which exceeds six customer trouble reports per 100 access lines for any two months in any twelve-month calendar year, the Company shall provide all customers within the exchange a credit of four ($4.00) dollars per access line.

D. Repeat Trouble Reports

Any customer who experiences three (3) or more trouble reports in a calendar quarter will receive a credit of one (1) month's worth of charges for local service(1).

(1) Charges for local service means charges for all regulated service monthly recurring charges, including basic local service, custom calling features, CLASS and ECS fees.

ISSUED: December 18, 2014 EFFECTIVE: January 1, 2015 TX 14-05

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 (T) First Revised Sheet No. 13 Cancels Original Sheet No. 13

GENERAL RULES AND REGULATIONS

XVI. SERVICE GUARANTEES (Continued)

E. Installation of Service

Failure of any exchange to meet the installation standards set by the Commission for any two quarters in a twelve-month calendar year will result in a two ($2.00) dollar credit per access line for each customer in the exchange.

F. Exceptions

Exceptions to the intervals set forth in this section as described for service guarantees are allowed for situations where access to the customer's premises is required but not available, (N) non-work days for technicians, and where interruptions are caused by unavoidable casualties, and acts of God affecting large groups of customers. The service guarantees do not apply to customers and exchanges regulated under Texas Utilities Code, Chapter 65. (N)

XVII. SPECIAL SERVICES

A. Customer requests for services not covered in Local or General Exchange Tariffs will be filled if practicable. Any installations, construction or monthly charges therefore will be based on costs and considered as special charges. Any such installation or construction charge is in addition to standard service connection, or move, or mileage charge which may be applicable. All facilities furnished under this paragraph are owned and maintained by the Telephone Company.

XVIII. USE OF PARTY LINE SERVICE

A. Applications for party line service are accepted by the Telephone Company with the understanding that each customer will so use the service as not to interfere with an equitable proportionate use of the service by other customers on the same line. When the duration or number of local calls sent or received by a party-line customer is so great as to prevent an equitable proportionate use of the line by other customers on the line, the Telephone Company shall have the right to require the customer to contract for a higher grade of service. The Telephone Company reserves the right to limit the continuous use of a party line for a local message to five minutes.

1. Emergency Calls on Party Line-Warning: State law requires a telephone user to hang up the receiver of a party line telephone immediately when told the line is needed for an emergency, fire, or police call or for medical aid or ambulance service. It is also unlawful to take over a party line by stating falsely that the line is needed for an emergency.

The law defines an "emergency" as a situation in which property or human life is in jeopardy and the prompt summoning of aid is essential.

ISSUED: December 18, 2014 EFFECTIVE: January 1, 2015 TX 14-05

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 7

Original Sheet No. 14

GENERAL RULES AND REGULATIONS

XVIII. USE OF PARTY LINE SERVICE (Continued)

A. Applications for party line service ... (Continued)

2. Use of Profane Language, Impersonation of Another, Nuisance Calls, and Interference With the Service of Other Customers: The Telephone Company may refuse to furnish or may deny telephone service to any person who, over the facilities furnished by the Telephone Company, uses or permits to be used foul, abusive, obscene, or profane language; or impersonates or permits others to impersonate any other individual with fraudulent or malicious intent; or calls or permits others to call another person or persons so frequently or at such times of the day or in any manner as to interfere with the service of others or to prevent others from making or receiving calls over their telephone service.

XIX. COMPANY FACILITIES AT HAZARDOUS OR INACESSIBLE LOCATIONS

A. Where service is to be established at a location that would involve undue hazards, or where accessibility is impracticable to employees of the Company, the customer may be required to install and maintain the Company's facilities in a manner satisfactory to the Company, any remuneration is to be based on the conditions involved.

XX. WORK PERFORMED OUTSIDE REGULAR WORKING HOURS

A. The rates and charges specified in this tariff contemplate that all work in connection with furnishing or rearranging service be performed during regular working hours. Whenever a customer requests that work necessarily required in the furnishing or rearranging of his service be performed outside the Company's regular working hours or that work once begun be interrupted, so that the Company incurs costs that would not otherwise have been incurred, the customer may be required to pay, in addition to the other rates and charges specified in this tariff, the amount of additional costs incurred by the Company as a result of the customer's special requirements.

XXI. WORK INTERRUPTIONS

A. The charges specified in this tariff do not contemplate work once begun being interrupted by the customer. If the customer interrupts work once begun, an additional charge, based on additional costs involved, applies.

XXII. RENDERING OF BILLS

A. Bills for telephone service shall normally be rendered monthly; shall show the period of time covered by the billings; and shall show a clear listing of all charges due and payable. The Company shall provide the customer with a breakdown of local service charges upon written request. Itemized toll statements shall be included in each bill. Customer billing sent through the United States mail shall be sent in an envelope.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 4th Revised Sheet No. 15 Cancels 3rd Revised Sheet No. 15

GENERAL RULES AND REGULATIONS

XXII. RENDERING OF BILLS (Continued)

A. Bills for telephone service shall normally ... (Continued)

1. Late Payment Charge ▲ – The penalty will be the greater of five percent (5%) or $13.00 for delinquent residential bills, and the greater of five (5%) or $13.00 for (I) delinquent commercial or industrial bills. The penalty will be applied against the outstanding balance for each month that an account is delinquent.

No penalty will be assessed on federal, state or local government bills.

B. Special Charges, Fees and Taxes

There shall be added to the customer's bill for service, an additional charge equal to the pro rata share of any occupation, franchise, business, license, excise, privilege or other similar charge or tax, now or hereafter imposed upon the gross receipts or revenue of the Company by any municipal taxing body or municipal authority whether by statute, ordinance, law or otherwise, and whether presently due or to hereafter become due.

The charge applicable to each customer will appear separately on the customer's regular monthly bill and shall be determined on a basis equal to the tax levied by each municipal taxing body or municipal authority.

1. Municipal Franchise Fee

Residential, non-residential and point-to-point access lines provided pursuant to this tariff are subject to a municipal franchise fee as established for the city in which the end user of the access lines is located. Effective with the charges billed on or after July 1, 2000, the monthly recurring municipal charge will be equal to a monthly amount developed using criteria as recommended by the local municipality with information supplied by the Company. The fee should be assessed as a per-line- charge on the end user bill. This municipal charge results from implementation of House Bill 1777 – Telecommunications Franchise Law which allows all municipalities to be compensated by certificated telecommunications providers (CTPs) for right-of-way usage. The fee has been developed and/or allocated across rate classifications according to local municipal guidelines.

▲ Central Telephone Company of Texas dba CenturyLink concurs in the charges and regulations governing this service.

ISSUED: August 21, 2020 EFFECTIVE: September 1, 2020 TX2020-12

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 Sixth Revised Sheet No. 16 Cancels Fifth Revised Sheet No. 16

GENERAL RULES AND REGULATIONS

XXII. RENDERING OF BILLS (Continued)

B. Special Charges, Fees and Taxes (Continued)

2. Dual-Party Relay Service

A surcharge will be added to the customer’s bill to allow the recovery of costs associated with the operation of the Dual-Party Relay Service, as outlined in Rule 23.56 of the Public Utility Commission of Texas Substantive Rules. This surcharge will be equal to the pro rata share (per access line) of costs assessed to the Company. After the initial surcharge, which is a two year recovery, the surcharge will be applied (billed) annually to recover the previous year’s costs.

3. Universal Service Fund (USF)

The amount of the surcharge will be determined by dividing the Company's total assessment related to the relay service by the number of access lines for the most recent year. The amount billed to the customer will be rounded down to the nearest cent. The surcharge will appear as a separate line/entry named Universal Service Fund Surcharge on the Company portion of the customer's bill.

The Company will file an application with the Public Utility Commission of Texas 45 days prior to the proposed recovery which will quantify the proposed charge.

4. Texas Universal Service Fund (TUSF) ▲

A charge of 3.3% will be added to the customer's bill, excluding Lifeline customers, to (R) allow the recovery of cost of the Texas Universal Service Fund (TUSF) as outlined in P.U.C. SUBST. R. §26.420(f) and (g) and the Commission’s Order dated December (C) 18, 2014, in Project No. 21208. (C)

The charge is assessed as a percentage of the retail customer's bill. The assessment percentage is determined by dividing the Company's assessment by the Company's retail revenues less Lifeline Revenues. The amount billed will be rounded down to the nearest cent. The charge will appear as a separate line/entry named, "Texas Universal Service" on the Company's portion of the customer's bill, and will be assessed on every retail customer bill excluding Lifeline customers beginning February 1, 1999, at a rate approved by the Texas Public Utility Commission.

▲ Central Telephone Company of Texas dba CenturyLink concurs in the charges and regulations governing this service.

ISSUED: February 18, 2015 EFFECTIVE: March 1, 2015 TX 15-01

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 (T) 2nd Revised Sheet No. 17 Cancels 1st Revised Sheet No. 17

GENERAL RULES AND REGULATIONS

XXII. RENDERING OF BILLS (Continued)

C. Prorating of Bills (C)

Bills for telephone service are normally rendered on a monthly basis. Bills rendered (N) for establishment of services and final bills rendered for discontinuation of business services will be prorated on the basis of a thirty (30) day billing period. Final bills rendered after customer-requested discontinuance of residential service will not be prorated and service will remain available to the customer until the first day of the customer’s next billing cycle, unless special circumstances require immediate disconnection as mandated by rule or statute. (N)

XXIII. INTEREST RATES ON CUSTOMER DEPOSITS, OVERBILLINGS AND UNDERBILLINGS

A. The rates of interest to be paid on customer deposits in accordance with Texas Utilities Code Annotated §183.003 (Vernon 1998), and overbillings or underbillings in accordance with P.U.C. SUBST. R. §26.27(d) and (e), are established annually on December 1 for the subsequent calendar year by the Commission, as reflected in the Order Setting Interest Rates included in this tariff.

XXIV. DISTANCE LEARNING AND INFORMATION SHARING PROGRAM DISCOUNTS ▲

A. Upon submission of an affidavit that complies with the requirements of P.U.C. SUBST. R. §26.141 and HB2128, an educational institution or library may obtain a 25 percent discount on the tariffed rate for any tariffed service that is used predominantly for distance learning or information sharing programs.

"Distance learning" means instruction, learning and training that is transmitted from one site to one or more sites by telecommunications services that are used by an educational institution predominantly for such instruction learning or training, including video, data, voice and electronic information.

▲ Central Telephone Company of Texas dba CenturyLink concurs in the charges and regulations (T) governing this service.

ISSUED: June 16, 2020 EFFECTIVE: July 17, 2020 TX2020-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 (T) First Revised Sheet No. 18 Cancels Original Sheet No. 18

GENERAL RULES AND REGULATIONS

XXIV. DISTANCE LEARNING AND INFORMATION SHARING PROGRAM DISCOUNTS (Continued)

A. Upon submission of an affidavit that complies ... (Continued)

"Educational institution" means and includes: (a) accredited primary or secondary schools owned or operated by state and local governmental entities or private entities; (b) institutions of higher education as defined by Section 61.003, Education Code; (c) private institutions of higher education accredited by a recognized accrediting agency as defined by Section 61.003 (13), Education Code; (d) the Central Education Agency, its successors and assigns; (e) regional education service centers established and operated pursuant to Sections 11.32 and 11.33, Education Code; and (f) the Texas Higher Education Coordinating Board, its successors and assigns.

"Library" means a "public library" or "regional library system" as those terms are defined by Section 441.122, Government Code, or a library operated by an institution of higher education or a school district.

(D)

(M) (M)

(M) Material moved to Section 7, Sheet No. 19.

ISSUED: November 2, 2016 EFFECTIVE: December 7, 2016 TX16-08

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 (T) First Revised Sheet No. 19 Cancels Original Sheet No. 19

GENERAL RULES AND REGULATIONS

XXV. UNIVERSAL SERVICE DISCOUNT PLAN FOR SCHOOLS AND LIBRARIES (E-Rates) ▲ (T)

(D)

1. General

The Universal Service Support Mechanism was established to ensure affordable telecommunications service to all Americans including low-income consumers and eligible schools and libraries. Public and private schools (generally grades Kindergarten — Twelve) (T) and public libraries and qualifying consortia, may be eligible to apply for support discounts (Support) through the Schools and Libraries Universal Service Support (T) Mechanism (E-Rate Program) in connection with the purchase of the Company's services and equipment (Service).

In addition, these Customers may be eligible for state or local corollaries to the E-Rate Program. The Support may be provided by the E-rate Program in the form of a (T) discount percentage of the billed charges for eligible Service. Schools, libraries, and consortia eligible for E-rate support pursuant to 47 Code of Federal Regulations part 54, subpart F shall comply with all E-rate Program rules and regulations in order to receive the Support. (T)

2. Application For Support

a. E-Rate Program

The Customer will abide by all E-Rate Program rules for receipt of Support. The Customer is responsible for applying to the Schools and Libraries Division (SLD) of the Universal Service Administrative Company (or other authorized E-Rate Program administrator) for Support from the E-Rate program each year the Customer is eligible for the Support. The Customer will notify the Company in writing within 30 days of its receipt of a Funding Commitment Decision Letter from the SLD along with a copy of the notice and other relevant documentation as requested by the Company.

b. Other Funding Sources

The Customer is responsible for applying for Support from state and/or local administrators (Funding Sources). The Customer will notify the Company in writing within 30 days of its receipt of a Support commitment from such Funding Sources and will include a copy of its application, Funding Source Support documentation, and other relevant documentation as requested by the Company.

▲ All CenturyLink ILECs concur in the rates and regulations governing this service. (M)(C) (M) (M) Material moved from Section 7, Sheet No. 18.

ISSUED: November 2, 2016 EFFECTIVE: December 7, 2016 TX16-08

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 (T) First Revised Sheet No. 20 Cancels Original Sheet No. 20

GENERAL RULES AND REGULATIONS

XXV. UNIVERSAL SERVICE DISCOUNT PLAN FOR SCHOOLS AND LIBRARIES (E-Rates) (T) (Continued)

(D)

3. Receipt of Support

a. E-Rate Program

The Customer will pay, in full, all invoices issued by the Company prior to Company’s receipt of notification from the Funding Source acknowledging the Customer’s receipt of Service. Upon notification, the Company will apply discounts to the Customer’s invoices or reimburse the Customer according to the Funding Commitment Decision Letter. The Customer is responsible to apply for SLD reimbursement (instead of receiving discounted Company bills) for all eligible customer premise equipment rentals or other financed arrangements. The Company reserves the right to require the Customer to seek SLD reimbursement (instead of receiving discounted Company bills) if the Customer has not received its Funding Commitment Decision Letter from the SLD by December 31 of the funding year. All discounts or reimbursements will be retroactive to the date authorized by the SLD funding year. The Company will either apply a credit to the Customer’s account or provide the Customer with a check corresponding to the appropriate amount of Support based on Service received.

b. Other Funding Sources

ISSUED: November 2, 2016 EFFECTIVE: December 7, 2016 TX16-08

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 7 Fourth Revised Sheet No. 21 Cancels Third Revised Sheet No. 21

GENERAL RULES AND REGULATIONS

XXV. UNIVERSAL SERVICE DISCOUNT PLAN FOR SCHOOLS AND LIBRARIES (E-Rates) (T) (Continued)

(D)

4. Failure To Obtain Support

a. The Customer will reimburse the Company if the FCC, SLD or Funding Sources fail to do so or if the FCC, SLD or Funding Sources reclaim any portion of Support sent to the Company on Customer’s behalf. Customer will not be responsible for Support withdrawn due to Company's material failure to provide Service.

b. The Company is not responsible for the Customer’s compliance with FCC, SLD or Funding Source rules and regulations, the Customer’s applications for Support, or any decisions or actions by the FCC, SLD or Funding Sources with respect to the Customer.

c. For Service agreements of more than one year, the Customer may not terminate the Agreement based solely on its failure to receive Support.

XXVI. RESIDENCE SERVICE FOR COMPANY EMPLOYEES ▲

The same rules and regulations are applicable to employees and retirees of the Company as are applicable to the general public. Certain telephone services will be furnished to Company employees and Company retirees at reduced rates as authorized by Company practices and procedures.

XXVII. SPECIAL DISASTER RELIEF RATES INITIATED BY THE COMPANY ▲

At the discretion of the Company following a disaster, an emergency due to a major event such as a hurricane, tornado, flood, etc., the Company may discount and/or waive recurring and nonrecurring rates and charges for subscriber disaster victims in a defined geographic area, e.g., exchange or exchanges, for a period beginning immediately after the disaster for a period of up to one year. Such services include but are not limited to non-recurring installation charges for temporary relocation of basic service, recurring charges for vacation service and call forwarding services.

ISSUED: November 2, 2016 EFFECTIVE: December 7, 2016 TX16-08

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 8 (T) 1st Revised Sheet No. 1 Cancels Original Sheet No. 1

TERMINATION LINE MILEAGE

I. GENERAL

A. Circuit terminations must be located on the same premises of the customer on which the primary service is located and are restricted to the use of the customer, his representatives and associates or to members of the customer's immediate family or domestic establishment; except that in the case of individual access line customer's service, other circuit terminations may be located on other premises under the following conditions, provided facilities are available and technical equipment limitations in each specific case permit:

1. Where two or more "premises" of the same customer are used in the conduct of one establishment or business; or

2. Where the circuit termination is located on other than the customer's premises for the purpose of answering calls at such time as the customer is not available at the primary location, provided that separate exchange service is also provided on these other premises.

B. Where circuit terminations or terminations of a similar character are provided at locations other than the access line premises, mileage charges are applicable as set forth below in addition to the basic rates.

C. Mileage charges are computed on a route measurement basis from the building location of the access line termination to the building in which other circuit terminations will be located. In those cases where the termination is bridged in the central office, mileage charges are computed on the airline measurement from the central office where bridged to each termination location.

D. Where supporting structures are necessary on the customer's premises, the structures will be furnished as provided in Section 6, Special Construction and Provision/Extension of Facilities.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 8 (T) Second Revised Sheet No. 2 Cancels First Revised Sheet No. 2

TERMINATION LINE MILEAGE

I. GENERAL (Continued)

E. When it is known or realized that the life of all or a part of the outside circuit extensions will be shorter than the normal life of the plant or the cost of providing the plant is such as to render inadequate the mileage charges quoted herein, the plant required to furnish such service will be provided on the basis of one of the following plans at the option of the customer.

1. An installation charge and a reasonable and proper monthly carrying charge in lieu of mileage. Under this plan, where a portion of the facilities must be replaced at a later date due to having served its useful life, installation charges apply to the replacing facilities as if such facilities were installed new and appropriate adjustments are made in the monthly carrying charges.

2. A reasonable and proper monthly carrying charge in lieu of mileage with an initial service period of ten years.

II. TERMINATION LINE MILEAGE CHARGES

A. Between buildings on the same premises: (1) (N)

1. For each one-tenth mile or fraction thereof 2 wire circuit $ .44

B. Between buildings on different premises:

1. Within the same exchange:

For each quarter mile or fraction thereof 2 wire circuit $1.00

C. Secretarial line mileage

1. Within the same exchange:

For each quarter mile or fraction thereof, airline $1.25

(1) Effective November 1, 2013, new installations of on-premises extensions will be provided as a (N) one-time charge based on time and materials charges. Existing units of record as of November 1, 2013 will continue to be provided and maintained by the Company at the rates and charges listed above. (N)

Issued: October 22, 2013 Effective: November 1, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 9 First Revised Sheet No. 1 Cancels Original Sheet No. 1

FOREIGN EXCHANGE SERVICE (BUSINESS ONLY) (C)

I. GENERAL

A. Foreign exchange service is exchange service furnished to a customer from an exchange other that the one in which he is located.

(D)

II. REGULATIONS

A. Foreign exchange service is not in accord with the general plan for furnishing telephone (C) service, and will be provided only under special conditions where the service is warranted by the circumstances and the telephone company does not incur undue expenses or impairment of the service furnished to the general public.

B. The rates established in the rate section of this tariff apply only under normal situations where all necessary facilities are available. If facilities are not available and the customer requesting foreign exchange service requests the Telephone Company to construct (C) facilities prior to the regularly scheduled construction of said facilities the customer may be required to pay excess construction charges, as outlined in Section 6 of this tariff, and/or to contract for service beyond the initial rate period.

C. The use of foreign exchange service is limited to local calling within the foreign exchange. (D)

D. Foreign exchange service is furnished only on one party access lines for business. (C)

E. If transmission and signaling conditions permit, additional telephones may be connected to foreign exchange service. (C)

F. Foreign exchange service is furnished only on the condition that the applicant is a customer to some class of exchange service in the exchange where he is located and at the same location where foreign exchange service is proposed to be installed. (D) (D)

ISSUED: October 22, 2008 EFFECTIVE: November 1, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 9 First Revised Sheet No. 2 Cancels Original Sheet No. 2

FOREIGN EXCHANGE SERVICE (BUSINESS ONLY) (C)

III. RATES

(D)

A. Rates for foreign exchange service connected in the operating area of United Telephone (T) Company of Texas, Inc. will comply with the rates and charges specified in the foreign exchange service tariff of the foreign telephone company.

(D)

IV. SERVICE CONNECTION CHARGES

(D)

A. The service connection charges for all one party access lines, key systems, or PBXs will be (T) applicable to all foreign exchange services and will be identical to the service connection charges for one party access lines, key systems, and PBXs in the exchange where the work is performed.

(D)

ISSUED: October 22, 2008 EFFECTIVE: November 1, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 10

Original Sheet No. 1

JOINT-USER SERVICE

I. Joint-user service is a means of furnishing business telephone service for separate business interests occupying the same premises where the provision of separate services would not be economical. This service is not designed to meet situations where a customer is primarily engaged in furnishing secretarial service or is in the business of renting office space on a transient or permanent basis and desires to furnish telephone service to his lessees. Ordinarily not more than two joint-users will be permitted for each main line.

II. Joint-user service is provided only under written contract with the customer responsible for the primary access line service. The primary customer, under this contract assumes responsibility for the service and facilities furnished in connection therewith and the payment of all charges incurred thereunder. All requests for changes in service shall be initiated by the primary customer.

III. The total charges for telephone service allocated by the customer among the customer and his joint-users shall not exceed the charges of the Telephone Company to the customer as set forth in this tariff.

IV. Joint-users of a customer's service shall have, at any time, the option of obtaining service directly from the Telephone Company.

V. Charges for joint-user service date from the day the contract is executed and are payable monthly in advance. The minimum contract period of joint-user service is for a directory period, unless the primary customer's service is discontinued, or the joint-user becomes a customer to business access line service in the same exchange. Contracts for joint-user service may be terminated for other reasons at any time during a contract period upon payment of all charges for service for the remaining part of the contractual period.

VI. Joint-user service is not provided in connection with pay telephone service.

VII. Joint-user service will not be offered to new customers. Existing customers with joint-user service will be grandfathered and the joint-user service will not be moved nor transferred.

VIII. RATES

Joint-user service is furnished only on 1-Party Business Lines at 50% of the 1-Party Business Rate, excluding differential charges, applicable in the exchange where the service is furnished. Refer to Local Exchange Tariff for rate.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 1

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1

A. General

1. Universal Emergency Number Service, also referred to as 9-1-1 Service, is a telephone exchange communication service whereby one or more Public Safety Answering Points (PSAP) designated by the customer allows the customer to receive and answer telephone calls placed by dialing the number 9-1-1. This service provides the lines and equipment associated with the service arrangement for the answering, transferring, and dispatching of public emergency telephone calls dialed to 9-1-1.

2. 9-1-1 Services are offered subject to availability of facilities.

3. The customer for Universal Emergency Number Service may be a municipality or other state or local government unit, or an authorized agent of one or more municipalities or other state or local governmental units to which authority has been lawfully delegated, which is legally authorized to subscribe to the service and which has public safety responsibility authorized by law to respond to telephone calls from the public for emergency police, fire fighting and ambulance service within the area of the exchange arranged for 9-1-1 calling.

B. Explanation of Terms

1. ALI Data Base: The set of ALI records residing on a computer system.

2. Automatic Location Identification (ALI): The automatic display at the PSAP of the caller’s telephone number, the address/location of the telephone and supplementary emergency services information. The address displayed on calls placed from additional telephones with the same telephone number at another address location will be that of the main service location.

3. Automatic Number Identification (ANI): Telephone number associated with the access line from which a call originates.

4. Called Party Hold: A 9-1-1 Service feature enabling a PSAP attendant to control the release of a 9-1-1 call, even if the calling party hangs up.

5. Company: United Telephone Company of Texas, Inc. dba Embarq.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 2

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1

B. Explanation of Terms (Continued)

6. Data Base Management System (DBMS): A system of manual procedures and computer programs used to create, store and update the data required to provide Selective Routing and/or Automatic Location Identification for E9-1-1 systems.

7. End Office: A Central Office(s) in the 9-1-1 Service Area from which the 9-1-1 calls originate.

8. Emergency Service Number (ESN): A number defining the Emergency Service Agency serving a particular telephone number.

9. Forced Disconnect (Call Party Control): This feature, a function of the 9-1-1 Central Office trunk circuit, enables the PSAP attendant to release a 9-1-1 connection even though the 9-1-1 calling party has not hung up. This feature prevents blocking of the 9- 1-1 exchange lines at the PSAP location.

10. Master Street Address Guide (MSAG): The document or computer file that contains standard street names, address ranges and ESN routing codes used to develop the ALI and Selective Routing.

11. Public Safety Answering Point (PSAP): An answering location for 9-1-1 calls originating in a given area. A PSAP may be designed as primary or secondary, which refers to the order in which calls are directed for answering. Primary PSAPs respond first; secondary PSAPs receive calls on a transfer basis only and generally serve as a centralized answering location for a particular type of service. PSAPs are public service agencies such as police, fire, emergency medical, etc., or a common bureau serving a group of such entities.

12. Re-ring Feature: A feature that enables a PSAP attendant to ring a 9-1-1 caller back after the calling party hangs up.

13. Selective Routing: The routing of a 9-1-1 call to the proper PSAP based upon the location of the caller. Selective Routing is controlled by the ESN which is derived from the customer location.

14. Service Area: The geographic area in which the customer will respond to all 9-1-1 calls and cause the appropriate emergency service to be dispatched.

15. Serving Central Office: The Central Office(s) in which a PSAP, either primary or secondary, is located.

16. 9-1-1 Service: A service that provides delivery of ANI with 9-1-1 calls to a PSAP within the 9-1-1 Service Area.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 3

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

C. Rules and Regulations

1. This service is limited to the use of central office telephone number 9-1-1 as the universal emergency telephone number. 9-1-1 Service will be provided directly to only one primary PSAP for calling from any telephone number within any central office service area, except that 9-1-1 Service may be provided to more than one primary PSAP within a central office serving area if Selective Routing is available.

2. The 9-1-1 emergency telephone number is not intended to be a total replacement of the telephone service of the various public safety agencies which may participate in the use of this number. Such public safety agencies may subscribe to other telephone service as provided in Section F of this tariff.

3. The service is furnished to the customer only for the purpose of receiving reports of emergencies by the public.

4. 9-1-1 Trunks are arranged for one-way incoming service to the appropriate PSAP.

5. Application for 9-1-1 Service must be executed in writing by each customer. If application for service is made by an agent, the Telephone Company must be provided in writing with satisfactory proof of appointment of that agent by the customer.

6. In addition to all other terms and conditions, the following applies:

a. It is the customer's responsibility to subscribe to interexchange or interoffice facilities and 9-1-1 Trunks sufficient to handle incoming calls adequately.

b. The customer will subscribe to additional local exchange service at the PSAP location for administrative purposes, for placing outgoing calls, and for receiving other emergency calls, including calls which may be relayed by Telephone Company operators.

7. Temporary suspension of service at the request of the customer, either partial or complete, is not applicable to any part of 9-1-1 Service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 4

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

C. Rules and Regulations (Continued)

8. The Company's entire liability to any person for interruption or failure of 9-1-1 Service shall be limited by the terms set forth in this section and other sections of this tariff. The Telephone Company or its officers or employees may not be held liable for any claim, damage, or loss arising from the provision of 9-1-1 Service unless it is proven that the act or omission proximately causing the claim damage, or loss constitutes gross negligence, recklessness, or intentional misconduct.

9. Because the Company's serving boundaries and political subdivision boundaries may not coincide, the customer must make arrangements to handle all calls received on its 9- 1-1 Service Trunks that originate from all telephones served by the central offices within the 9-1-1 Service Area, whether or not the calling telephone is situated on property within the geographical boundaries of the customer's public safety jurisdiction.

10. 9-1-1 Service is furnished subject to all operating failures and interruptions including, but not limited to, equipment breakdowns, errors, defects, malfunctions and interruptions of service experienced in the regular telephone exchange system. 9-1-1 Service is furnished subject to any additional forms of service failures and service degradations resulting from the complexity of the service arrangement, program errors and failures, delays and errors in the input and processing of data used by the ALI Data Base Management System associated with the 9-1-1 Service arrangement. The rates provided for this service are subject to the limitations which appear in this section and in other applicable sections of this and other tariffs.

9-1-1 Service will be designed by the Telephone Company to provide at least the same level of service reliability and quality as local exchange telephone service in the exchanges where 9-1-1 Service is offered.

a. 9-1-1 Service is provided solely for the benefit of the customer. The provision of service shall not be interpreted, construed or regarded as being for the benefit of, or creating any Telephone Company obligation toward, or any right of action on behalf of, any third party or other legal entity.

b. The Company does not undertake to answer and forward 9-1-1 calls, but to furnish the use of its facilities to enable the customer's personnel to respond to such calls on the customer's premises.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 5

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

C. Rules and Regulations (Continued)

10. 9-1-1 Service is furnished subject to all operating failures ... (Continued)

c. The rates charged for 9-1-1 Service do not include, and the Telephone Company does not undertake, inspection or constant monitoring to discover errors, defects, and malfunctions in the service. The customer has the responsibility to report all errors, defects and malfunctions in the service to the Telephone Company.

d. Damages arising out of interruptions, defects, failures, or malfunctions of the system after the Telephone Company has been so notified and has had a reasonable time for repair shall in no event exceed the amount equivalent to the charges made for the service affected for the period following notice from the customer until service is restored.

11. Any terminal equipment used in connection with 9-1-1 Service, whether such equipment is provided by the Telephone Company or the customer, shall be configured so that it is unable to extract any information from the ALI Data Base other than information relating to an emergency call. Any subscriber information obtained from the ALI Data Base in connection with an emergency call shall be used solely for the purpose of answering, handling and responding to emergency calls in a manner consistent with the nature of the emergency. Any permanent record associating a subscriber's telephone number with his name or address shall be secured by the customer and disposed of in a manner that will retain that security.

The use of Automatic Location Identification (ALI) on anything less than an entire Telephone Company central office basis requires ALI Data Base rates based on the number of Exchange Access Lines served by that Telephone Company central office. The ALI Data Base rates for a central office(s) may be divided among 9-1-1 customers when they so agree.

12. The calling party dialing 9-1-1 forfeits the privacy afforded by non-published service to the extent that the calling party's number, address and name are furnished to the public safety answering point.

13. ANI and/or ALI will not be displayed on calls placed from party lines.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 6

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

C. Rules and Regulations (Continued)

14. The customer is responsible for identifying the unique combinations of police, fire, ambulance, or any other appropriate agencies jurisdictions in the 9-1-1 serving area. An Emergency Service Number (ESN) will be provided for each unique combination by the Telephone Company. The customer will associate their ESNs with street address ranges in the 9-1-1 serving area. These ESNs will be carried in the ALI Data Base to assist in the handling of 9-1-1 calls by the PSAP.

15. The customer is responsible for providing the following information:

a. The customer will provide the initial and subsequent Master Street Address Guide (MSAG) and ESN routing information for each central office area included in the 9-1-1 service area within a mutually agreed upon period of time prior to establishment of service.

b. After establishment of service, it is the customer's responsibility to continue to verify the accuracy of the routing information contained in the MSAG and to advise the Company of any changes that need to be made in the ESN routing information by reason of changes in street names, establishment of new streets, changes in address numbers used on existing streets, closing and abandonment of streets, changes in police, fire, or other appropriate agencies' jurisdiction over any address, annexations and other changes in municipal and county boundaries, incorporation of new cities and any other matters that will affect the routing of 9-1- 1 calls to the proper PSAP.

1) Changes, deletions and additions which the customer desires to have made in the MSAG should be submitted in a written form to the Company on an "as occurred" basis.

2) The Company will furnish a written copy to the customer for verification showing each change, deletion and addition to the MSAG.

16. Cancellation of the service in whole or part by the customer prior to establishment thereof will require payment of an amount equal to the cost of engineering, manufacturers' billings resulting from equipment orders, installation, assembly, labor, cost of removal and any other costs incurred up to the time of cancellation resulting from the customer's order for service, but not to exceed the total nonrecurring charges.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 7

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

C. Rules and Regulations (Continued)

17. The customer agrees, to the extent allowed by law, to release, indemnify, defend and hold harmless the Company from any and all loss, claims, demands, suits or other actions, or any liability whatsoever, whether suffered, made, instituted or asserted by the customer or by any other party or person, for any personal injury to, or death of, any person or persons, or for any loss, damage or destruction of any property, whether owned by the customer or others.

18. The customer also agrees, to the extent allowed by law, to release, indemnify and hold harmless the Company for any infringement or invasion of the right of privacy of any person or persons caused or claimed to have been caused, directly or indirectly, by the installation, operation, failure to operate, maintenance, removal, presence, condition, occasion or use of 9-1-1 Service features and equipment associated therewith, or by any services furnished by the Company in connection therewith, including, but not limited to, the identification of the telephone number, address, or name associated with the telephone used by the party or parties assessing the 9-1-1 Service, and which arise out of the negligence or other wrongful act of the Company, the customer, its user, agencies or municipalities, or the employees or agents of any one of them.

D. 9-1-1 Service Features

1. 9-1-1 Service (9-1-1)

a. 9-1-1 Service provides Automatic Number Identification (ANI), dedicated facilities within the message network between the serving Central Office and primary PSAP location, and, where available, Called Party Hold, Forced Disconnect and Re-ring features. Selective Routing is an optional feature of 9-1-1 Service.

E. 9-1-1 Service Rates and Charges

Whenever 9-1-1 facilities or any portion thereof are provided jointly to a customer by a connecting company, the charges for these facilities will be Bill-Pass through billing to the customer.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 8

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

E. 9-1-1 Service Rates and Charges (Continued)

1. 9-1-1 Network Service Features

Monthly Nonrecurring Rate Charge

a. The business one-party rate for the See the See the General specific exchange will apply for the Local Exchange Tariff local loop from the central office to the Exchange Sec. 17 (SCC) PSAP. Tariff

b. Analog Office Modifications

1) Analog Office - initial charge to provide 9-1-1 service N/A $3,946.55

2) Analog Office Modification With Selector addition charge per 100 access lines.(1) N/A 2,812.05

3) Analog Office Modification – Without Selector Additions. Charge per 100 Access lines.(1) N/A 128.40

c. Central Office Trunk Facilities $5.95 356.05

d. Selective Routing

1) Selective Routing – Initial Setup per central office N/A 2,434.20

2) Selective Routing – Charge per 100 access lines.(1) N/A 95.70

e. ALI Data Base

1) Provision of nightly updates to ALI Data Base Charge per 100 access lines.(1) 7.00 N/A

(1) For the purpose of determining the monthly charges, access lines are rounded to the nearest 100. (Example 849 = 800, 850 = 900.)

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 9

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

F. Wireless E911 Phase 2 ▲

1. Description of Service

Wireless E911 Phase 2 is only available in combination with E911 as specified in this section of the tariff and is subject to the regulations specified herein.

In accordance with the FCC’s Report and Order 94-102, Wireless E911 Phase 2 provides PSAPs with the wireless E911 caller’s location and callback number (CBN) information, as specified by the FCC. The FCC has adopted specific handset-based and network-based location accuracy and reliability solutions standards for the Wireless Service Providers (WSPs).

2. General Regulations

a. The Company is not responsible for the location determination technology, the accuracy of the location determination technology, or the investigation or maintenance of said technologies. Only the data required and specified by the FCC in its Report and Order 94-102 will be delivered by the Company to the PSAP. This required data includes the cell site or sector location, the callback number, and the latitude/longitude of the caller. Each customer agrees that delivery, or lack of delivery, of additional data elements which may be provided by the WSP will not be the responsibility of the Company and the Company assumes no responsibility or liability for such information.

b. PSAPs must have all required elements of Wireless E911 Phase 1, utilizing p- ANI routing and cell site/sector location based information, in place before implementing Phase 2. This is necessary to accommodate loading of the respective p-ANIs also known as Emergency Service Routing Key/Emergency Service Routing Digit into the Company’s Database Management System. In addition, the following requirements must be met for Phase 2 implementation:

1) PSAPs must order both the Company’s Extended ALI Display Format and the ALI Database for Wireless Phase 2 to accommodate the x/y data provided by Wireless E911 Phase 2 Service. See rates in I. F.6 following.

2) WSPs must have Position Determining Entity (PDE) and a Mobile Position Center (MPC)/Gateway Mobile Location Center (GMLC) in their network.

3) WSPs or their designated database provider must have obtained an interface to the Company’s ALI database that complies with the Company’s existing operating standard. This interface will be used by the WSP to provide the Phase 2 data.

▲ Central Telephone Company of Texas dba Embarq concurs with the rates, terms and conditions as specified in this tariff.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 10

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

F. Wireless E911 Phase 2 (Continued)

3. Definition of Terms

a. Callback Number (CBN)

The wireless caller’s 10-digit handset telephone number. The CBN is used by the PSAP to reestablish a call in the event the call was prematurely disconnected.

b. Interface

A reference point for a data path that exists between an MPC/GMLC and an ESME (the ALI database). The data that traverses the interface is made up of an Emergency Services Position Request and the response. The interface is not provided by and is not the responsibility of the Company.

c. Emergency Services Message Entity (ESME)

An entity in the emergency services network which serves as the point of interface to an MSC for common channel emergency services messaging. ESME is another term for the ALI database.

d. Enhanced MF Signaling (EMFS)

A signaling protocol for sending 10 or 20 digits of ANI from the 911 Tandem to the PSAP. EMF signaling is required when an interconnecting WSP selects Phase 2 NCAS mode without WLS911.

e. Mobile Position Center (MPC)

The interface between the wireless network and the Company’s ALI database. The MPC serves as the wireless network entity which retrieves, forwards, stores, and controls position data within the wireless location network. The MPC is not provided by and is not the responsibility of the Company. Global System for Mobile (GSM) communication Gateway Mobile Location Centers (GMLCs) will be treated as MPCs by the Company.

f. Mobile Switching Center (MSC)

The wireless equivalent of a Central Office, which provides switching functions for wireless calls. The MSC is not provided by and is not the responsibility of the Company.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 11

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

F. Wireless E911 Phase 2 (Continued)

3. Definition of Terms (Continued)

g. Phase 2 NCAS

In this mode the p-ANI and the CBN both are sent to the Selective Router. The trunk between the Selective Router and the PSAP must support transport of at least two 10-digit numbers.

h. Position Determining Entity (PDE)

The PDE determines the geographic location of a wireless handset when the wireless caller places a 911 call or while the call is in process. The PDE is not provided by and is not the responsibility of the Company.

i. Pseudo-ANI (P-ANI)

A pseudo, non-dialable telephone number assigned to a cell site or a sector of a cell site to provide location identification for wireless E911 calls.

j. WLS911

The Company solution that sends either eight or ten digits of ANI to the PSAP and dynamically updates the static cell site or sector information with the CBN as provided by the WSP. This solution when used in conjunction with a WSP’s interface allows WSPs to comply with the FCC’s order without requiring PSAPs to upgrade their PSAP equipment to utilize Enhanced MF signaling.

k. Wireless Service Provider (WSP)

A person or entity that provides Commercial Mobile Radio Service (CMRS). The term wireless includes service provided by any wireless real-time, two-way voice communication device, including radio-telephone communications used in cellular telephone service, personal communication service (PCS), or functional or competitive equivalent. The term does not include service providers whose customers do not have access to 911 or 911-like services.

l. Wireline Compatibility Mode

Occurs when the WSP sends only p-ANI to the Company E911 tandem and the PSAP receives eight or ten digits of ANI.

m. X,Y Coordinates

The latitude and longitude of the 911 wireless caller’s location.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 12

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

F. Wireless E911 Phase 2 (Continued)

4. Enhanced MF

Enhanced MF (EMF) is a new signaling protocol from the 911 Tandem to the PSAP. Enhanced MF accommodates either ten or 20 digits of ANI. Enhanced MF is not a requirement of Wireless Phase 2 implementation but EMF must be used by PSAPs when an interconnecting Wireless Service Provider chooses the Phase 2 NCAS Mode (as defined in J-STD-036 Annex D, Table D.1.2. and/or D.2.), without WLS911. If an interconnecting WSP chooses a Phase 2 NCAS solution without WLS911, the PSAP’s equipment must be 20-digit Enhanced MF capable. The PSAP must request the Company convert them to EMF signaling when preparing to accept Phase 2 calls from a WSP utilizing Phase 2 NCAS without WLS911. Once a PSAP has been converted to 20 digit EMF Signaling the functionality of WLS911 is disabled for all WSPs serving that PSAP.

5. Wireless E911 Phase 2 Service

This service is comprised of two components, Extended ALI Display Format and ALI Database for Wireless Phase 2. Both components are required for implementation of this service.

a. Extended ALI Display Format

The PSAP’s Automatic Location Identification (ALI) display format must be changed to the Company’s Extended ALI Display Format to accommodate the latitude and longitude, or x,y coordinates. The provision and delivery of the x,y information to the PSAP requires an interface between the ALI database and the WSP’s Mobile Position Center (MPC)/Gateway Mobile Location Center (GMLC). The provisioning of the interface is the responsibility of the WSP.

b. ALI Database for Wireless Phase 2

The ALI Database for Wireless Phase 2 enables the PSAP to query and retrieve wireless caller location information from the Company’s Automatic Location Identification (ALI) Database. Location information may include cell site sector location, longitude and latitude of the wireless caller’s location, and the wireless caller’s callback number (CBN). This service will enable the necessary interfaces, software, and databases to permit the wireless caller’s location information to be populated in the Company’s ALI database and/or retrieved when queried by the customer’s PSAP equipment.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 13

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1

F. Wireless E911 Phase 2 (Continued)

6. Rates and Charges Nonrecurring Monthly SAE Charge Rate Code

a. Enhanced MF signaling, per PSAP $ 0.00 $ 0.00 - b. Extended ALI Display Format, per PSAP 3,500.00 0.00 -

c. ALI Database for Wireless Phase 2, per PSAP 0.00 250.00 AEMDATA (WLS)

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 14

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

G. Private Switch Database Service ▲

1. Description of Service

a. Private Switch Database Service is available to companies that use a Private Branch Exchange (PBX) or Centrex to manage their individual telephones and want to provide specific location information for each of these telephones to the Public Safety Answering Point (PSAP) responsible for responding to an emergency.

b. Private Switch Database Service allows a customer with a multi-line private switch to facilitate reception of either (1) Automatic Number Identification (ANI) or (2) a combination of ANI and Automatic Location Identification (ALI) information by a PSAP for emergency “9-1-1” calls originating from the location served by the customer’s multi-line private switch. A private switch is customer premises equipment (CPE) at the end user customer’s location.

2. General Regulations

a. The customer is responsible for validating address information through Master Street Address Guide (MSAG) and for coordinating with the Company to provide the National Emergency Number Association (NENA) standard format of telephone numbers and address data. The Company will allow the customer to update records no more frequently than on a daily basis. The data may originate from the customer’s private switch, when technically feasible, or from a manually created list.

b. The Company will:

1) Be responsible for uploading a NENA formatted data file to its ALI database;

2) Hold the information in confidence and protect it in accordance with state and federal rules applicable to emergency 911 services; and

3) Use the information only in connection with providing emergency services to PSAPs.

c. The Company may immediately terminate a customer’s use of Private Switch Database Service if, in the Company’s sole judgment, the customer falsifies the information provided or fails to comply with any other provisions of this tariff.

d. The Company will only provide Private Switch Database Service where the Company is the primary 911 database provider for the PSAP serving the customer’s location.

▲ Central Telephone Company of Texas dba Embarq concurs with the rates, terms and conditions as specified in this tariff.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 15

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

G. Private Switch Database Service (Continued)

2. General Regulations (Continued)

e. The Company will provide a software package that will allow the customer to load the database information in the appropriate NENA format for transmission to the Company’s data center.

f. The Company will charge the private switch customer a monthly recurring charge for maintenance of the data in the national ALI database for delivery upon a 911 call to the PSAP.

3. Limitations

a. The Company offers no warranty or representation with respect to the accuracy or completeness of the Private Switch Database Service. The Company relies on its customers for all private switch information placed in the Company’s database management system.

b. The Company does not warrant or represent that its database management system will be compatible with every type of private switch equipment. Customers who wish to provide automated updates to the Company’s database management system are responsible for acquiring their own private switch equipment and for testing the compatibility of that equipment with the Company’s database management system.

4. Obligations of the Customer

a. When implementing Private Switch Database Service, the customer must contact the Telephone Company’s E-911 representative to negotiate trunking, hardware and software requirements associated with the Private Switch Database Service.

b. The customer will be responsible for loading address information into the Private Switch Database Service software package and transmitting that information to the Telephone Company.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 16

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

G. Private Switch Database Service (Continued)

5. Rates and Charges

a. Private Switch Database Service Rates:

Nonrecurring Charge

1) Installation

a) Initial Installation $900.00 b) Subsequent addition of Station Records 0.00

Monthly Recurring Charge

2) Monthly Rate(1)

a) Up to 1000, per 1000 Station Records $100.00 b) 1001 - 4000, per 1000 Station Records 70.00 c) Over 4000, per 1000 Station Records 60.00

b. Separate charges, not specified in this section of the tariff, are applicable for network connectivity from the customer’s private switch to the Company’s central office facilities.

c. Each Private Switch Database Service customer’s Installation Charge and Monthly Rate is calculated at the time Private Switch Database Service is established and is based on the number of station records in service for the customer. The total number of station records are audited annually by the Telephone Company and applied to the account.

(1) The Monthly Rate is calculated based on the total number of station records submitted by the customer at installation or at the time of the annual audit. For example, 900 station records = $100 MRC; 3900 station records = $70 X 4 = $280 MRC; 4500 station records = $60 X 5 = $300 MRC.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 17

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

H. Reverse Notification Telephone Number Database Service ▲

1. Description of Service

a. The Company offers Reverse Notification Telephone Number Database Service (Reverse Database Service) to support the ability of Public Safety Answering Points (PSAPs) to make broadcast notification calls to areas under their jurisdiction in the event of emergencies.

2. General Regulations

a. Reverse Database Service is offered solely for the purpose of permitting PSAPs to make broadcast notifications to particular geographic areas and associated local telephone numbers in the event of emergencies. PSAPs ordering Reverse Database Service must provide the Company with written certification of their authority to make public emergency notifications.

b. PSAPs may not use Reverse Database Service information in connection with Universal Emergency Telephone Number Service (911).

c. PSAPs subscribing to Reverse Database Service will receive CD-ROM downloads of information from the Company’s Automatic Location Indicator (ALI) database. The Company will provide ten-digit telephone numbers and associated addresses to the extent that information is present in the Company’s ALI database.

d. Reverse Database Service will include ALI information obtained by the Company from other local exchange carriers serving a PSAP’s jurisdiction, when there are multiple local exchange carriers in a PSAP’s jurisdiction. Reverse Database Service will include ALI information obtained from customers who operate private switches and have requested that carriers maintain appropriate information in the carrier’s ALI database.

e. The Company will provide Reverse Database Service only for the jurisdictional area where a PSAP is authorized to provide emergency services. PSAPs will not be able to obtain foreign listings, foreign exchange cross-listings, foreign central office subscriptions, and multiple listings through Reverse Database Service.

▲ Central Telephone Company of Texas dba Embarq concurs with the rates, terms and conditions as specified in this tariff.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 18

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

H. Reverse Notification Telephone Number Database Service (Continued)

2. General Regulations (Continued)

f. The Company considers all information provided to a PSAP under Reverse Database Service to be confidential and proprietary. Information received through Reverse Database Service may contain the addresses and telephone numbers of individuals whose listings are not published in directories and/or are not listed in directory assistance databases. The PSAP must:

1) Hold all Reverse Database Service information in confidence and protect it in accordance with the security regulations by which it protects its own proprietary or confidential information;

2) Restrict disclosure of the information solely to those PSAP employees and/or agents with a need to know and not disclose or resell such information to any other parties;

3) Use the information only when delivering broadcast notifications of emergencies; and

4) Notify the Company immediately of any confirmed or suspected misuse of Reverse Database Service information.

g. The PSAP represents and warrants that it will use information received through Reverse Database Service only in emergency situations. A PSAP may not access, use, import, export, copy, print, distribute or release information for any purpose other than what is necessary to make outbound telephone emergency notifications.

h. The Company may immediately terminate a PSAP’s use of Reverse Database Service and demand the return of all Reverse Database Service information furnished to the PSAP if, in the Company’s judgment, the PSAP misuses the information provided or fails to comply with any other provision of this tariff.

i. A PSAP’s modification, merger or enhancement of information received through the Reverse Database Service will not relieve the PSAP from any provision of this tariff.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 19

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

H. Reverse Notification Telephone Number Database Service (Continued)

3. Limitations

a. The Company offers no warranty or representation with respect to the accuracy or completeness of the Reverse Database Service. The Company may rely on other local exchange carriers or private switch customers for certain information used in the Reverse Database Service.

b. The Company does not warrant or represent that the Reverse Database Service will be compatible with every type of reverse notification equipment. PSAPs are responsible for acquiring their own broadcast notification equipment and for testing the compatibility of that equipment with the Reverse Database Service.

c. By offering Reverse Database Service, the Company makes no warranties or representations for the operation of customer’s broadcast notification equipment or for the availability or performance of any telephone network facilities, including the Company’s facilities, during a broadcast notification.

4. Liability of the Company

a. To the extent permitted by law, subscribing to Reverse Database Service, a PSAP agrees to hold harmless and indemnify the Company, along with its employees, directors, officers, agents, and subcontractors, from and against all claims or suits arising out of or resulting from the provision of Reverse Database Service, specifically including, but not limited to, all claims or suits resulting from or allegedly resulting from errors or omissions in the file or the use of such information by the PSAP or its agents.

b. To the extent permitted by law and the extent that the PSAP claims sovereign immunity or other statutory limitations against third party claims, the PSAP will extend that same protection to the Company in connection with the PSAP’s use of the Reverse Database Service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 20

FCC DESIGNATED N11 SERVICES

I. UNIVERSAL EMERGENCY NUMBER SERVICE 9-1-1 (Continued)

H. Reverse Notification Telephone Number Database Service (Continued)

5. Rates and Charges

a. PSAPs can purchase Reverse Database Service in the following formats:

1) One-time update – The customer purchases one CD-ROM update and pays a nonrecurring charge.

2) Monthly update – The customer purchases monthly CD-ROM updates and pays a monthly recurring charge. The customer commits to purchasing the CD-ROM for a minimum of twelve consecutive months. Should the customer terminate service prior to the twelfth month, the customer will be billed for any remaining months to fulfill the twelve-month minimum.

Nonrecurring Monthly Charge Rate

b. Reverse Database Service,

1) One-time update (CD-ROM) $500.00 $ 0.00

2) Monthly update (CD-ROM) 12 Month Term 0.00 125.00

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 21

FCC DESIGNATED N11 SERVICES

II. 211 SERVICE FOR INFORMATION AND REFERRAL SERVICE ▲

A. General Regulations

1. The 211 Service for Information and Referral Service (211 Service) is a locally assigned three digit abbreviated dialing code provided to an Approved Information and Referral Service Provider for use in making available community information and referral services to the public by way of voice grade facilities. The 211 abbreviated dialing code is available to the Approved Information and Referral Service Provider as a tariffed, local calling area based service (the "211 Service").

2. The 211 Service allows a Company subscriber to access an Approved Information and Referral Service Provider call center by dialing only the 211 abbreviated dialing code. Subject to other terms and conditions of this Tariff, Company subscribers shall be able to make and the Approved Information and Referral Service Provider shall be able to receive calls using the 211 Service as part of their local exchange services. The 211 Service is supplemental to and is not a replacement for either party's local exchange service.

3. All 211 abbreviated dialing code calls must not result in intraLATA toll, interLATA long distance or pay-per-call charges to Company subscribers. However, 211 Service calls may result in local measured service charges where Company subscribers' service plans include such charges as part of home and Extended Metropolitan Service (EMS) or Extended Area Calling Service (EACS) exchange calling.

4. The 211 Service is not available from pay telephones located in Company local exchanges. The 211 Service is also not available for the following classes of service:

a. Hotel/motel/hospital service b. Inmate service c. 1+ and 0+ calling d. 0-operated assisted calling e. 101XXXX calling

B. Obligations of the Approved Information and Referral Service Provider

1. The Approved Information and Referral Service Provider must submit a written application for 211 Service to the Company at the local exchange level. The Approved Information and Referral Service Provider may establish 211 Service in all or part of the Company's local exchanges.

▲ Central Telephone Company of Texas dba Embarq concurs in the charges and regulations governing this service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 22

FCC DESIGNATED N11 SERVICES

II. 211 SERVICE FOR INFORMATION AND REFERRAL SERVICE (Continued)

B. Obligations of the Approved Information and Referral Service Provider (Continued)

2. The Approved Information and Referral Service Provider's written application to establish 211 Service in a Company local exchange must include the following:

a. The local, foreign exchange or toll free telephone number into which the Company is to translate the dialed 211 abbreviated code. If the Approved Information and Referral Service Provider desires to change the telephone number into which the 211 abbreviated dialing code is translated in an exchange, the Approved Information and Referral Service Provider must pay the Number Change Charge specified in the customer's contract.

b. A location description of the Approved Information and Referral Service Provider call center where 211 calls made from the Company local exchange will be routed.

c. For network sizing and protection, an estimate of annual call volumes, the expected busy hour and holding time for each call to the 211 Service.

d. An acknowledgment of the possibility that the Commission's assignment of the 211 abbreviated dialing code may be recalled at any time.

3. Local Calling for Company Subscribers

a. The Approved Information and Referral Service Provider, in cooperation with the Company, must assure that all 211 Service calls are local in nature and do not generate intraLATA toll, interLATA long distance or pay-per-call charges for Company subscribers.

b. When the Approved Information and Referral Service Provider makes application for 211 Service in a Company local exchange, the Approved Information and Referral Service Provider must supply the Company with a seven or ten digit telephone number that terminates within the Company local exchange or one of the local exchange's EMS or EACS exchanges. The Company's exchange facilities will translate the dialed 211 dialing code into the telephone number the Approved Information and Referral Service Provider provides once 211 Service is established in the local exchange.

c. When the Approved Information and Referral Service Provider makes application for 211 Service in a Company local exchange and an Approved Information and Referral Service Provider call center is not located within the local exchange or one of the local exchange's EMS or EACS exchanges, then the Approved Information and Referral Service Provider shall establish foreign exchange service or supply the Company with a toll free telephone number so that Company subscribers' 211 Service calls remain local in nature.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 23

FCC DESIGNATED N11 SERVICES

II. 211 SERVICE FOR INFORMATION AND REFERRAL SERVICE (Continued)

B. Obligations of the Approved Information and Referral Service Provider (Continued)

4. The Approved Information and Referral Service Provider is liable for and will indemnify, protect, defend and hold harmless the Company against all suits, actions, claims, demands and judgments, plus any expenses and counsel fees incurred by the Company on account thereof, whether suffered, made, instituted or asserted by the Approved Information and Referral Service Provider or any other party or person, for any personal injury to or death of any person or persons, or for any loss, damage or destruction of any property, whether owned by the Approved Information and Referral Service Provider or others, arising out of or resulting directly or indirectly from the 211 Service.

5. The Approved Information and Referral Service Provider must develop an appropriate method for responding to 211 calls directed to it out of confusion or in error by Company subscribers.

6. The Approved Information and Referral Service Provider must be prepared to receive all calls to the 211 Service during normal business hours. The Approved Information and Referral Service Provider agrees to subscribe to termination facilities and lines in sufficient quantities to provide adequate service to the public.

7. The 211 Service is provided on the condition that the Approved Information and Referral Service Provider subscribes to termination facilities and lines in sufficient quantities to adequately handle calls to the 211 Service without interfering with or impairing any services offered by the Company. For each line subscribed to by the Approved Information and Referral Service Provider, there will be one path available.

8. The Approved Information and Referral Service Provider must comply with all present and future rules pertaining to abbreviated dialing codes adopted by the Federal Communications Commission, in rulemaking proceeding CC Docket No. 92-105, CC Docket No. 00-256, and otherwise, including any and all requirements to relinquish the 211 abbreviated dialing code in the event of a national assignment contrary to that made by the Public Utility Commission of Texas.

9. The Approved Information and Referral Service Provider is responsible for obtaining all necessary permissions, licenses, written consents, waivers and releases and all other rights from all persons whose work, statements or performances are used in connection with the 211 Service, and from all holders of copyrights, trademarks and patents used in connection with the said service.

10. The Approved Information and Referral Service Provider shall respond promptly to any and all complaints lodged with any regulatory authority against the 211 Service. If requested by the Company, the Approved Information and Referral Service Provider will assist the Company in responding to complaints made to the Company concerning the 211 Service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 24

FCC DESIGNATED N11 SERVICES

II. 211 SERVICE FOR INFORMATION AND REFERRAL SERVICE (Continued)

B. Obligations of the Approved Information and Referral Service Provider (Continued)

11. The Approved Information and Referral Service Provider shall not promote the 211 Service with the use of an autodialer or broadcasting of tones that dial the 211 abbreviated dialing code.

12. The Company can only make 211 Service available to end users located in Company local exchanges. To establish 211 calling to end users in non-Company local exchanges, the Approved Information and Referral Service Provider must make appropriate arrangements with the companies serving those local exchanges, even where Company subscribers may make local calls to the non-Company local exchanges.

13. The Approved Information and Referral Service Provider must work separately with competitive local exchange carriers operating and serving customers in the Company's local exchanges to ascertain whether 211 abbreviated dialing will be available to their end users.

C. Obligations of the Company

1. The Company will provision the 211 Service within forty-five days of the Company's receipt of the Approved Information and Referral Service Provider's completed application(s) for service. If the Company receives an application from an Approved Information and Referral Service Provider prior to the effective date of this tariff, the Company will provision the 211 Service within forty-five days of the effective date of the tariff.

2. When a 211 Service call is placed by the calling party via interconnection with an interexchange carrier, the Company cannot guarantee the completion of said 211 Service call, the quality of the call or any features that may otherwise be provided with 211 Service.

3. The Company does not undertake to answer and forward 211 Service calls but furnishes the use of its facilities to enable the Approved Information and Referral Service Provider to respond to such calls at the Approved Information and Referral Service Provider established call centers.

4. The rates charged for 211 Service do not contemplate the inspection or constant monitoring of facilities to discover errors, defects, and malfunctions in service, nor does the Company undertake such responsibility. The Approved Information and Referral Service Provider shall make such operational tests as, in the judgment of the Approved Information and Referral Service Provider, are required to determine whether the Company's facilities are functioning properly for its use. The Approved Information and Referral Service Provider shall promptly notify the Company in the event the Company's facilities are not functioning properly.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 25

FCC DESIGNATED N11 SERVICES

II. 211 SERVICE FOR INFORMATION AND REFERRAL SERVICE (Continued)

D. Liability

1. The liability of the Company for losses or damages of any kind arising out of mistakes, omissions, interruptions, delays, errors or defects in transmission, or failure or defects in any facility furnished by the Company, occurring in the course of furnishing 211 Service, or of the Company in failing to maintain proper standards of maintenance and operation or to exercise reasonable supervision, shall in no event exceed an amount equivalent to the proportionate charge to the Approved Information and Referral Service Provider for the 211 Service and local exchange services for the period of service during which such mistake, omission, interruption, delay, error or defect in transmission or defect or failure in facilities occurs.

2. The Company is not liable for losses or damages caused by the negligence of the Approved Information and Referral Service Provider.

3. The Company's entire liability to any person for interruption or failure of the 211 Service is limited to the terms set forth in this section and other sections of this Tariff.

4. The Commission's local assignment and the Approved Information and Referral Service Provider's use of the 211 abbreviated dialing code is subject to preemption by the Federal Communications Commission. The Company shall not be liable to the Approved Information and Referral Service Provider for any damages the Approved Information and Referral Service Provider may incur that result from a national assignment of the 211 abbreviated dialing code.

E. Other Terms and Conditions

1. The 211 Service will not provide calling number information in real time to the Approved Information and Referral Service Provider. If this type of information is required, the Approved Information and Referral Service Provider must subscribe to compatible Caller ID service as described in Section 18 of this tariff.

2. The 211 Service is provided solely for the benefit of the Approved Information and Referral Service Provider. The provision of the 211 Service by the Company shall not be interpreted, constructed or regarded, either expressly or implied, as being for the benefit of or creating any Company obligation toward any third person or legal entity other than the Approved Information and Referral Service Provider.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 26

FCC DESIGNATED N11 SERVICES

II. 211 SERVICE FOR INFORMATION AND REFERRAL SERVICE (Continued)

E. Other Terms and Conditions (Continued)

3. A written notice will be sent to the Approved Information and Referral Service Provider following oral notification when its 211 Service unreasonably interferes with or impairs other services rendered to the public by the Company or by other subscribers of abbreviated dialing codes. If after notification the Approved Information and Referral Service Provider makes no modification in method of operation or in the service arrangements that are deemed service-protective by the Company, or if the Approved Information and Referral Service Provider is unwilling to accept the modifications, or if the Approved Information and Referral Service Provider continues to cause service impairment, the Company reserves the right, at any time, without further notice, to institute protective measures, up to and including termination of service.

4. In an emergency situation as determined by the Company, the Company reserves the right, at any time, without notice, to institute protective measures, up to and including termination of service.

F. Rates and Charges

1. Subject to other terms and conditions of this Tariff, Company subscribers shall be able to make and the Approved Information and Referral Service Provider shall be able to receive calls using the 211 Service as part of both parties' local exchange service. The 211 Service is supplemental to and is not a replacement for either party's local exchange service.

2. Rates Nonrecurring Charge

Central Office Charge $250.00

Exclusion Charge 325.00

Number Change Charge 50.00

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 27

FCC DESIGNATED N11 SERVICES

III. 711 SERVICE FOR TELECOMMUNICATIONS RELAY SERVICES (TRS)

A. General

1. 711 Dialing Code ("711") is a three digit local dialing arrangement for telephone voice transmission access to all certified Telecommunications Relay Services entities as a toll free call. Pursuant to Order 00-257, issued by the Federal Communications Commissions (FCC) in CC Docket 92-105, the FCC assigned 711 dialing code for nationwide access to Telecommunications Relay Services (TRS) entities, to be implemented not later than October 1, 2001.

2. 711 is available from United Telephone Company of Texas, Inc. dba Embarq (the Company) within the Company's service area only. To provide access to 711 to end users in another company service area or to a Competitive Local Exchange Carrier (CLECs) end users within the local calling area, the TRS entity must make appropriate arrangements with the other company or CLEC serving that territory. The TRS entity should work separately with competing local providers to ascertain that its end user customers will be able to reach relay services provided by dialing 711.

3. This service is subject to the availability of the 711 dialing code.

4. 711 can be delivered via regular exchange access lines (by Centrex, Key trunks, etc.).

5. General Rules and Regulations are as stated in Section 7 of this Tariff.

6. Directory Listings may be provided for 711 at rates and regulations as specified in Section 5 of this Tariff.

7. Access to 711 is not available to the following classes of service:

- Hotel/Motel/Hospital Service (toll call only) - 1+ - 0+, 0- (Credit Card, Third-Party Billing, Collect Calls) - Inmate Service - 101XXXX - Cellular - Type 2A In addition, operator assisted calls to 711 will not be completed

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 28

FCC DESIGNATED N11 SERVICES

III. 711 SERVICE FOR TELECOMMUNICATIONS RELAY SERVICES (TRS) (Continued)

B. Obligations of the TRS Entity

1. The TRS entity must, prior to provisioning of the service, sign a written acknowledgement of possible recall of the 711 dialing code by the FCC and an agreement to return the code upon receipt of 6 months written notice of such a recall from the Company or regulating entity and abide by all terms and conditions which may be identified by the FCC in CC Docket 92-105 regarding the use and return of the 711 dialing code. If a recall is effected, the Company will work with the TRS entity affected by such recall to transfer their service arrangements, to a 7 or 10-digit dialing arrangement within the 6-month notice period. The TRS entity will be required to migrate to any access arrangement the telecommunications relay services subsequently agreed to by the industry and approved by the FCC. The TRS entity will be charged the appropriate tariff rates for the establishment of the new access arrangement.

2. The TRS entity should work separately with wireless companies to ascertain their end user customers will be able to reach telephone relay services provided by dialing 711.

3. The TRS entity should work separately with competitive local exchange companies to ascertain their end user customers will be able to reach telephone relay services provided by dialing 711.

4. The TRS entity is restricted from selling or transferring the 711 dialing code to an unaffiliated entity, either directly or indirectly.

a. An "affiliate" of a TRS entity is any entity that directly, or indirectly through one or more intermediaries, controls, is controlled by, or is under common control with the TRS entity. The term "control" (including the terms "controlling," "controlled by," and "under common control with") means the possession, direct or indirect, of the power to direct or cause the direction of the management and policies of an entity, whether through the ownership of voting securities, by contract, or otherwise.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 29

FCC DESIGNATED N11 SERVICES

III. 711 SERVICE FOR TELECOMMUNICATIONS RELAY SERVICES (TRS) (Continued)

B. Obligations of the TRS Entity (Continued)

5. The 711 Dialing Code will be provided by the Company to the TRS entity under the following conditions:

a. For network sizing and protection, the TRS entity must provide an estimate of annual call volumes, the expected busy hour and the expected holding time for each call to the 711 dialing code.

b. The TRS entity will subscribe to adequate telephone facilities initially and subsequently as may be required, in the judgment of the Company, to adequately handle calls to 711 without impairing the Company’s general telephone service or telephone facilities.

c. The TRS entity is responsible for obtaining all necessary permission, licenses, written consents, waivers, releases and all other rights from all persons whose work, statements or performance are used in connection with the 711 dialing code, and from all holders of copyrights, trademarks, and patents used in connection with said service.

6. If a pre-recorded announcement is provided by the TRS entity, the following conditions apply:

a. The TRS entity will provide announcements. The company will provide only the delivery of the call.

b. The provision of access to the 711 network by the Company for the transmission of announcement is subject to availability of such facilities and the requirements of the local exchange network.

c. The TRS entity assumes all financial responsibility for all costs involved in providing announcement including, but not limited to, the recorder- announcement equipment located on the TRS entity’s premises.

d. The TRS entity assumes, according to other specific rates and charges under tariff, all financial responsibility for all facilities required, to connect the recorder- announcement equipment located on the TRS entity’s premises.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 30

FCC DESIGNATED N11 SERVICES

III. 711 SERVICE FOR TELECOMMUNICATIONS RELAY SERVICES (TRS) (Continued)

C. Obligations of the Company

1. Once the 711 Dialing Code has been assigned and the subscriber has provided the Company the appropriate toll free number, implementation of the 711 Dialing Code will begin. The Company will implement the TRS entity’s request within a reasonable time, given the complexity of the order.

If, during or at the end of the provisioning period, the TRS entity has failed to establish service or decides to discontinue service establishment, the 711 code will be recalled and the number will be considered available for reassignment.

2. When a 711 Service call is placed by the calling party via interconnection with an interexchange carrier, the Company cannot guarantee the completion of said 711 Service call, the quality of the call or any features that otherwise may be provided with 711 dialing service.

D. Obligations of the Competitive Local Exchange Carrier (CLEC)

1. In those instances where a CLEC provides the 711 dialing code to its end user within the local calling area, terms and conditions for 711 dialing code are as defined in the appropriate Interconnection Agreement.

a. For purposes of providing a CLEC end user access to the TRS entity within the local calling area, appropriate arrangements must be made by the CLEC with the TRS entity serving the local calling area.

b. A CLEC may negotiate the provision of directory listing as defined in the Interconnection Agreement.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 31

FCC DESIGNATED N11 SERVICES

III. 711 SERVICE FOR TELECOMMUNICATIONS RELAY SERVICES (TRS) (Continued)

E. Liability

1. The TRS entity is responsible for, and shall indemnify, protect, defend and save harmless the Company against all suits, actions, claims, demands and judgments, and of all costs, expenses and counsel fees incurred on account thereof, arising out of and resulting directly or indirectly from the service or in connection therewith, including, but not limited to, any loss, damage, expense or liability resulting from any infringement or claim of infringement, of any patent, trademark, copyright, or resulting from any claim of liable and slander. Unless otherwise specifically provided in this Tariff, the Company shall be authorized to disconnect any tariffed service provided to the TRS entity utilized, directly or indirectly, with the 711 dialing code, which fails to comply with regulations and conditions set forth herein, upon five (5) days of notice to the subscriber. Disconnection may be suspended at the discretion of the Company if it receives written certification that the TRS entity is in compliance with regulations and conditions of the tariffs. Continual noncompliance shall be cause for disconnection without notice at the discretion of the Company.

2. The TRS entity shall respond promptly to any and all complaints lodged with any regulatory authority against any service provided via the 711 dialing code. If requested by the Company, the TRS entity shall assist the Company in responding to complaints made to the Company concerning the 711 dialing code.

3. A written notice will be sent to any TRS entity following oral notification when their service unreasonably interferes with or impairs other services rendered to the public by the Company. If after notification the TRS entity makes no modification in method of operation or in the service arrangements that are deemed service-protective by the Company, or if the TRS entity is unwilling to accept the modifications, or if the TRS entity continues to cause service impairment, the Company reserves the right, at any time, without further notice, to institute protective measures, up to and including termination of service. In an emergency situation as defined by the Company, the Company reserves the right, at any time, without notice, to institute protective measures up to and including termination of service.

4. The Company may take all legal and practical steps to disassociate itself from the TRS entity providing services whose business and/or public conduct (whether demonstrated or proposed) is of a type that in the Company’s discretion generates unacceptable levels of complaints by end users.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 32

FCC DESIGNATED N11 SERVICES

III. 711 SERVICE FOR TELECOMMUNICATIONS RELAY SERVICES (TRS) (Continued)

E. Liability (Continued)

5. In no event shall the Company be liable for any losses or damages of any kind resulting from the unavailability of its equipment or facilities or for any act, omission or failure of performance by the Company, or its employees, or agents, in connection with this Tariff. The Company shall not be responsible for calls that cannot be completed as a result of repair or maintenance difficulties on Company facilities and equipment nor on equipment owned or leased by the TRS entity.

F. Other Terms and Conditions

1. Only one 10-digit toll free number may be used as the lead number per basic local calling area.

2. The 711 Dialing Code is provided where facilities permit.

3. The 711 Service will not provide calling number information in real time to the TRS entity. If this type of information is required, the TRS entity must subscribe to compatible Caller ID Service as described in Section 18 of this Tariff.

4. The 711 Service is provided solely for the benefit of the TRS entity. The provision of the 711 Service by the Company shall not be interpreted, constructed, or regarded, either expressly or implied, as being for the benefit of or creating any Company obligation toward any third person or legal entity other than the TRS entity.

G. Rates and Charges

1. The 711 Service is ordered by the F.C.C. to be provided without charge. Therefore, there are no rates or charges for the 711 Service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 33

FCC DESIGNATED N11 SERVICES

IV. 511 SERVICE FOR TRAVEL INFORMATION SERVICES ▲

A. General

1. 511 Dialing Code ("511") is a three digit local dialing arrangement for telephone voice transmission access to all certified Travel Information Service entities as a toll free call. The Federal Communications Commission (FCC) assigned the 511 dialing code for nationwide access to Travel Information Services.

2. The three digit 511 abbreviated dialing code is assigned to the Approved Travel Information Service Provider (“511 Provider”) for use in providing community Travel Information services to the public by way of voice grade facilities.

3. 511 is available from United Telephone Company of Texas within the Company's service area only. To provide access to 511 to end users in another company service area or to a Competitive Local Exchange Carrier (CLEC) end users within the local calling area, the 511 Provider must make appropriate arrangements with the other company or CLEC serving that territory. The 511 Provider should work separately with competing local providers to ascertain that its end user customers will be able to reach relay services provided by dialing 511.

4. All 511 abbreviated dialing code calls must be local in nature and will not result in any Extended Area Service, Extended Metropolitan Service, Optional Extended Area Service, Optional Extended Metropolitan Service, Extended Local Calling, intraLATA toll, interLATA long distance or pay-per-call charges to Company subscribers. However, 511 Service calls may result in measured service charges where Company subscribers' service plans include such charges as part of local measured service or home exchange service calling plans.

5. The 511 Service is not available for the following classes of service: inmate service, 1+ and 0+ calling, 0- operator assisted calling and 101XXXX calling. 511 Service is otherwise available wherever local service is accessible.

▲ Central Telephone Company of Texas dba Embarq concurs in the charges and regulations governing this service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 34

FCC DESIGNATED N11 SERVICES

IV. 511 SERVICE FOR TRAVEL INFORMATION SERVICES (Continued)

B. Obligations of the Approved Travel Information Services Provider

1. The 511 Provider must submit a written application to the Company for 511 Service at the local exchange level. The 511 Provider may establish 511 Service in all or part of the Company's local exchanges. There may be only one 511 Provider per exchange.

2. The 511 Provider's written application to establish 511 Service in a Company local exchange must include the following:

a. The local, foreign exchange or toll free telephone number into which the Company should translate the dialed 511 abbreviated code. If the 511 Provider desires to change the telephone number into which the 511 abbreviated dialing code is translated, the 511 Provider must pay a Number Change Charge as found in Section IV.F.6.

b. A location description of the 511 Provider call center where 511 calls made from the Company local exchange will be routed.

c. For network sizing and protection, an estimate of annual call volumes and holding time for calls to the 511 Service.

d. An acknowledgment of the possibility that the Commission’s assignment of the 511 abbreviated dialing code may be recalled at any time.

3. Local Calling for Company Subscribers

a. The 511 Provider, in cooperation with the Company, will assure that all 511 Service calls are local and do not generate Extended Area Service (EAS), Extended Metropolitan Service, Optional Extended Area Service, Optional Extended Metropolitan Service, Extended Local Calling, intraLATA toll, interLATA long distance or pay-per-call charges for Company subscribers.

b. When the 511 Provider applies for 511 Service in a Company local exchange, the 511 Provider must supply the Company with a seven or ten digit telephone number that terminates within the Company local exchange’s local calling area. The Company will translate the 511 digits into the telephone number provided by the 511 Provider.

c. When the 511 Provider applies for 511 Service in a Company local exchange and a 511 Provider call center is not located within the local exchange’s local calling area, the 511 Provider must establish foreign exchange service or supply the Company with a toll free telephone number so that Company subscribers' 511 Service calls do not incur toll charges.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 35

FCC DESIGNATED N11 SERVICES

IV. 511 SERVICE FOR TRAVEL INFORMATION SERVICES (Continued)

B. Obligations of the Approved Travel Information Services Provider (Continued)

4. The 511 Provider is liable for and will indemnify, protect, defend and hold harmless the Company against all suits, actions, claims, demands and judgments, plus any expenses and counsel fees incurred by the Company on account thereof, whether suffered, made, instituted or asserted by the 511 Provider or any other party or person, for any personal injury to or death of any person or persons, or for any loss, damage or destruction of any property, whether owned by the 511 Provider or others, arising out of or resulting directly or indirectly from the 511 Service.

5. The 511 Provider must develop an appropriate method for responding to 511 calls directed to it out of confusion or in error by Company subscribers.

6. The 511 Provider must subscribe to termination facilities and lines in sufficient quantities to provide adequate service to the public, and enable the 511 Provider to receive calls to the 511 Service during normal business hours.

7. The 511 Service is provided on the condition that the 511 Provider subscribes to termination facilities and lines in sufficient quantities to adequately handle calls to the 511 Service without interfering with or impairing any services offered by the Company. There will be one path available for each line to which the 511 Provider subscribes.

8. The 511 Provider must comply with all present and future state and federal rules pertaining to abbreviated dialing codes, including any and all requirements to relinquish the 511 abbreviated dialing code in the event of a national assignment contrary to that made by the Public Utilities Commission of Texas.

9. The 511 Provider is responsible for obtaining all necessary permissions, licenses, written consents, waivers and releases and all other rights from all persons whose work, statements or performances are used in connection with the 511 Service. The 511 Provider is also responsible for obtaining all necessary permissions, licenses, written consents, waivers and released and all other rights from all holders of copyrights, trademarks and patents used in connection with the said service.

10. The 511 Provider must respond promptly to all complaints lodged with any regulatory authority against the 511 Service. If requested by the Company, the 511 Provider must assist the Company in responding to complaints made to the Company concerning the 511 Service.

11. The 511 Provider shall not promote the 511 Service with the use of an autodialer or broadcasting of tones that dial the 511 abbreviated dialing code.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 36

FCC DESIGNATED N11 SERVICES

IV. 511 SERVICE FOR TRAVEL INFORMATION SERVICES (Continued)

B. Obligations of the Approved Travel Information Services Provider (Continued)

12. The 511 Service is available only to end users located in Company local exchanges. To establish 511 calling to end users in non-Company local exchanges, the 511 Provider must make appropriate arrangements with the companies serving those local exchanges, even where Company subscribers may make local calls to the non- Company local exchanges.

13. The 511 Provider must work separately with competitive local exchange carriers ("CLECs") operating and serving customers in the Company's local exchanges to ascertain whether 511 abbreviated dialing will be available to their end users.

C. Obligations of the Company

1. The Company will establish the 511 Service within ninety days after receipt of the 511 Provider's completed application(s) for service or the effective date of this tariff, whichever is later.

2. When a 511 Service call is placed by the calling party via interconnection with an interexchange carrier, the Company cannot guarantee the completion of said 511 Service call, the quality of the call or any features that may otherwise be provided with 511 Service.

3. The Company will route 511 calls originating from end users on the Company’s local exchange network whether they purchase service directly from the Company or from another provider reselling Company service. Otherwise, the Company is not responsible for establishing 511 Service for calls originating from other telecommunications providers.

4. The Company does not undertake to answer and forward 511 Service calls but furnishes the use of its facilities to enable the 511 Provider to respond to such calls at the 511 Provider established call centers.

5. The rates charged for 511 Service do not contemplate the inspection or constant monitoring of facilities to discover errors, defects, and malfunctions in service, nor does the Company undertake such responsibility. The 511 Provider must conduct such operational tests as, in the judgment of the 511 Provider, are required to determine whether the Company's facilities are functioning properly for its use. The 511 Provider must promptly notify the Company in the event the Company's facilities are not functioning properly.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 37

FCC DESIGNATED N11 SERVICES

IV. 511 SERVICE FOR TRAVEL INFORMATION SERVICES (Continued)

D. Liability

1. The liability of the Company for losses or damages of any kind arising out of mistakes, omissions, interruptions, delays, errors or defects in transmission, or failure or defects in any facility furnished by the Company, occurring in the course of furnishing 511 Service, or of the Company in failing to maintain proper standards of maintenance and operation or to exercise reasonable supervision, shall in no event exceed an amount equivalent to the proportionate charge to the 511 Provider for the 511 Service and local exchange services for the period of service during which such mistake, omission, interruption, delay, error or defect in transmission or defect or failure in facilities occurs.

2. The Company is not liable for any losses or damages caused by the negligence of the 511 Provider.

3. The Company's entire liability to any person for interruption or failure of the 511 Service is limited to the terms set forth in this and other sections of this Tariff.

4. The Commission’s local assignment and the 511 Service Provider’s use of the 511 abbreviated dialing code is subject to preemption by the Federal Communications Commission. The Company shall not be liable to the 511 Service Provider for any damages the 511 Service Provider may incur that results from a national assignment of the 511 abbreviated dialing code.

5. The Company will make every effort to route 511 calls to the appropriate 511 Service Provider calling center, however, the Company will not be held responsible for routing mistakes or errors.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 38

FCC DESIGNATED N11 SERVICES

IV. 511 SERVICE FOR TRAVEL INFORMATION SERVICES (Continued)

E. Other Terms and Conditions

1. The 511 Service will not provide calling number information in real time to the 511 Provider. If this type of information is required, the 511 Provider must subscribe to compatible Caller ID service as described in Section 18 of this tariff. The Caller ID service will only provide calling number information as described in Section 18 of this tariff.

2. The 511 Service is provided for the benefit of the 511 Provider. The provision of the 511 Service by the Company shall not be interpreted, constructed or regarded, either expressly or implied, as being for the benefit of or creating any Company obligation toward any third person or legal entity other than the 511 Provider.

3. A written notice will be sent to the 511 Provider following oral notification when its 511 Service unreasonably interferes with or impairs other services rendered to the public by the Company or by other subscribers of abbreviated dialing codes. If after notification the 511 Provider makes no modification in method of operation or in the service arrangements that are deemed service-protective by the Company, or if the 511 Provider is unwilling to accept the modifications, or if the 511 Provider continues to cause service impairment, the Company reserves the right, at any time, without further notice, to institute protective measures, up to and including termination of service.

4. In an emergency situation as determined by the Company, the Company reserves the right, at any time, without notice, to institute protective measures, up to and including termination of service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 39

FCC DESIGNATED N11 SERVICES

IV. 511 SERVICE FOR TRAVEL INFORMATION SERVICES (Continued)

F. Rates and Charges

1. A Central Office Charge applies for each Company host central office out of which the 511 Provider orders 511 Service, as follows:

a. When a Company local exchange is served by more than one host central office, a Central Office Charge is applicable for each host central office in that local exchange.

b. If the 511 Provider establishes 511 Service in multiple Company local exchanges served by the same host central office, only one Central Office Charge applies. However, the full Central Office Charge applies whether or not the 511 Provider requests 511 Service in all the Company local exchanges served by that host central office.

2. An Exclusion Charge applies for the establishment of 511 Service as follows:

a. When the 511 Provider does not make simultaneous applications to establish 511 Service in every Company local exchange served by a host central office, the 511 Provider must pay an Exclusion Charge for each Company local exchange served by the host central office where 511 Service is not established.

b. When a Company local exchange is once excluded, but the 511 Provider later makes application to establish 511 Service in the Company local exchange, then an Exclusion Charge again applies for each local exchange that continues to be excluded.

c. When the 511 Provider requests a different telephone number be translated to the 511 abbreviated dialing code in a participating central office than the telephone number translated to the 511 abbreviated dialing code in the host central office.

3. A Number Change Charge applies when the 511 Provider established service or applies to change the telephone number into which the 511 abbreviated dialing code is translated. The Number Change Charge is applied on a per telephone number, per host central office basis.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 40

FCC DESIGNATED N11 SERVICES

IV. 511 SERVICE FOR TRAVEL INFORMATION SERVICES (Continued)

F. Rates and Charges (Continued)

4. When translating the seven or ten digit number to the 511 abbreviated dialing code, applicable Service Connection Charges as specified in Section 17 of this tariff will apply as follows, in addition to the rates listed in Section IV.F.6. below.

a. A business rate Record Order Charge per order, as found in Section 4 will apply.

5. The minimum service period for 511 Service is one month.

6. Rates:

Nonrecurring Charge

Central Office Charge (per host Central Office) $ 250.00

Exclusion Charge (per Exchange) 325.00

Number Change Charge (per telephone number) 50.00

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 41

FCC DESIGNATED N11 SERVICES

V. NON-EMERGENCY 311 SERVICE

A. General

1. Non-Emergency 311 Service (NE311) is a local telephone exchange communications service which allows Company subscribers to reach non-emergency local government services by dialing an abbreviated telephone number. The Federal Communications Commission (FCC) reserved the abbreviated telephone number, 3-1-1, for non- emergency access to public services. NE311 Service is an optional service which may be purchased by a local municipality, state or local governmental unit to whom authority has been lawfully delegated. The NE311 Service Provider must be granted authority by the appropriate city, county, or state officials to provide the service.

2. NE311 Service allows a Company subscriber to access an approved NE311 Service Provider by dialing only the 311 abbreviated dialing code. Subject to other terms and conditions of this Tariff, Company subscribers shall be able to make and the NE311 Service Provider shall be able to receive calls using the NE311 Service as part of their local exchange services. The NE311 Service is supplemental to and is not a replacement for either party’s local exchange service.

3. All NE311 Service calls must be local in nature and shall not result in any Extended Area Service, Extended Metropolitan Service, Optional Extended Area Service, Optional Extended Metropolitan Service, Extended Local Calling, intraLATA toll, interLATA long distance or pay-per-call charges to Company subscribers. However, NE311 Service calls may result in local measured service charges where Company subscribers' service plans include such charges as part of Extended Area Service, Extended Metropolitan Service, Optional Extended Area Service, Optional Extended Metropolitan Service, Extended Local Calling exchange calling. NE311 Service calls are not permitted where local calling is restricted.

4. The NE311 Service is not available for the following classes of service: inmate service, 1+ and 0+ calling, 0- operated assisted calling and 101XXXX calling. NE311 Service is otherwise available wherever local service is accessible.

5. Only calls originating within a NE311 Service Provider’s area of jurisdiction (the “NE311 Service Area”) will be routed to a call center/answering point designated by the NE311 Service Provider. There can be only one NE311 Service Provider in each geographic area. NE311 Service areas may not overlap. This assures that NE311 calls from a telephone line within a NE311 Service Area can be routed to a unique NE311 call center/answering point.

6. NE311 Service is offered subject to the availability of facilities.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 42

FCC DESIGNATED N11 SERVICES

V. NON-EMERGENCY 311 SERVICE (Continued)

B. Obligations of the Non-Emergency 311 Service Provider

1. The NE311 Service Provider must submit a written application for NE311 Service on a Company local exchange by local exchange basis. The NE311 Service Provider may establish NE311 Service in all or part of the Company's local exchanges. There may be only one NE311 Service Provider per exchange.

2. The NE311 Service Provider’s written application to establish NE311 Service in a Company local exchange shall include the following:

a. The unpublished local telephone number into which the Company is to translate the dialed NE311 abbreviated code. If the NE311 Service Provider desires to change the telephone number into which the NE311 abbreviated dialing code is translated in an exchange, then the NE311 Service Provider must pay the Number Change Charge specified in Section V.F.7.a.3) following.

b. A location description of the NE311 Service Provider call center where NE311 calls made from the Company local exchange will be routed.

c. For network sizing and protection, an estimate of annual call volumes, the expected busy hour and holding time for each call to the NE311 Service.

d. An acknowledgment of the possibility that the Commission's assignment of the NE311 abbreviated dialing code may be recalled at any time.

3. Local Calling for Company Subscribers

a. The NE311 Service Provider, in cooperation with the Company, shall assure that all NE311 Service calls are local in nature and do not generate local, Extended Area Service, Extended Metropolitan Service, Optional Extended Area Service, Optional Extended Metropolitan Service, Extended Local Calling, intraLATA toll, interLATA long distance or pay-per-call charges for Company subscribers.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 43

FCC DESIGNATED N11 SERVICES

V. NON-EMERGENCY 311 SERVICE (Continued)

B. Obligations of the Non-Emergency 311 Service Provider (Continued)

3. Local Calling for Company Subscribers (Continued)

b. When the NE311 Service Provider applies for NE311 Service in a Company local exchange, the NE311 Service Provider shall supply the Company with an unpublished seven or ten digit telephone number that terminates within the Company local exchange’s local calling area or one of the local exchange's Extended Area Service, Extended Metropolitan Service, Optional Extended Area Service, Optional Extended Metropolitan Service, Extended Local Calling exchanges. The Company will translate the dialed NE311 dialing code into the telephone number provided by the NE311 Service Provider.

c. When the NE311 Service Provider applies for NE311 Service in a Company local exchange and a NE311 Service Provider call center is not located within the local exchange’s local calling area or one of the local exchange's Extended Area Service, Extended Metropolitan Service, Optional Extended Area Service, Optional Extended Metropolitan Service, Extended Local Calling exchanges, then the NE311 Service Provider shall establish foreign exchange service or supply the Company with a toll free telephone number so that Company subscribers' NE311 Service calls do not incur toll charges.

4. The NE311 Service Provider is liable for and will indemnify, protect, defend and hold harmless the Company against all suits, actions, claims, demands and judgments, plus any expenses and counsel fees incurred by the Company on account thereof, whether suffered, made, instituted or asserted by the NE311 Service Provider or any other party or person, for any personal injury to or death of any person or persons, or for any loss, damage or destruction of any property, whether owned by the NE311 Service Provider or others, arising out of or resulting directly or indirectly from the NE311 Service.

5. The NE311 Service Provider must develop an appropriate method for responding to NE311 calls directed to it out of confusion or in error by Company subscribers. This includes calls from customers that reside within the Company local exchange but outside the legally designated jurisdiction of the NE311 Service Provider (i.e. exchange boundaries that cross county borders.)

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 44

FCC DESIGNATED N11 SERVICES

V. NON-EMERGENCY 311 SERVICE (Continued)

B. Obligations of the Non-Emergency 311 Service Provider (Continued)

6. The NE311 Service Provider must subscribe to termination facilities and lines in sufficient quantities to provide adequate service to the public, and enable the NE311 Service Provider to receive calls to the NE311 Service during normal business hours.

7. NE311 Service is provided on the condition that the NE311 Service Provider subscribes to termination facilities and lines in sufficient quantities to adequately handle calls to the NE311 Service without interfering with or impairing any services offered by the Company. There will be one path available for each line to which the NE311 Service Provider subscribes.

8. The NE311 Service Provider must comply with all present and future state and federal rules pertaining to abbreviated dialing codes, including any and all requirements to relinquish the 311 abbreviated dialing code in the event of a national assignment contrary to that made by the Public Utilities Commission of Texas.

9. The NE311 Service Provider is responsible for obtaining all necessary permissions, licenses, written consents, waivers and releases and all other rights from all persons whose work, statements or performances are used in connection with the 311 Service, and from all holders of copyrights, trademarks and patents used in connection with the said service.

10. The NE311 Service Provider must respond promptly to any and all complaints lodged with any regulatory authority against the NE311 Service. If requested by the Company, the NE311 Service Provider shall assist the Company in responding to complaints made to the Company concerning the NE311 Service.

11. The NE311 Service Provider shall not promote the NE311 Service with the use of an autodialer or broadcasting of tones that dial the NE311 abbreviated dialing code.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 45

FCC DESIGNATED N11 SERVICES

V. NON-EMERGENCY 311 SERVICE (Continued)

B. Obligations of the Non-Emergency 311 Service Provider (Continued)

12. NE311 Service is only available to end users located in Company local exchanges. To establish NE311 calling to end users in non-Company local exchanges, the NE311 Service Provider must make appropriate arrangements with the companies serving those local exchanges, even where Company subscribers may make local calls to the non-Company local exchanges.

13. The NE311 Service Provider must work separately with competitive local exchange carriers operating and serving customers in the Company's local exchanges to ascertain whether NE311 abbreviated dialing will be available to their end users.

14. In the event that an end user misdials and reports an emergency by dialing 311, the NE311 Service Provider agrees to release, indemnify, defend, and save harmless the Company from claims, suits, actions, damages, costs, judgments, actions of every name and description arising out of or due to acts or omissions of the NE311 Service Provider, its agents and its employees while answering and dispatching 311 calls.

C. Obligations of the Company

1. The Company will establish the NE311 Service within ninety days after receipt of the NE311 Service Provider’s completed application(s) for service or of the effective date of the tariff, whichever is later.

2. When an NE311 Service call is placed by the calling party via interconnection with an interexchange carrier, the Company cannot guarantee the completion of said NE311 Service call, the quality of the call or any features that may otherwise be provided with NE311 Service.

3. The Company will route NE311 calls originating from end users on the Company’s local exchange network whether they purchase service directly from the Company or from another provider reselling Company service. Otherwise, the Company is not responsible for establishing NE311 Service for calls originating from other telecommunications providers.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 46

FCC DESIGNATED N11 SERVICES

V. NON-EMERGENCY 311 SERVICE (Continued)

C. Obligations of the Company (Continued)

4. The Company does not undertake to answer and forward NE311 Service calls but furnishes the use of its facilities to enable the NE311 Service Provider to respond to such calls at NE311 Service Provider established call centers.

5. The rates charged for NE311 Service do not contemplate the inspection or constant monitoring of facilities to discover errors, defects, and malfunctions in service, nor does the Company undertake such responsibility. The NE311 Service Provider shall make such operational tests as, in the judgment of the NE311 Service Provider, are required to determine whether the Company's facilities are functioning properly for its use. The NE311 Service Provider shall promptly notify the Company in the event the Company's facilities are not functioning properly.

6. NE311 Service is furnished subject to all operating failures and interruptions, including, but not limited to, equipment breakdowns, errors, defects, malfunctions and interruptions of service experienced in the regular telephone exchange system. The rates provided for this service are subject to the limitations which appear in this section and in other applicable sections of this and other tariffs. The Company does not undertake to provide a higher level of service reliability and quality than the telephone exchange service being provided in the exchange that NE311 Service is offered.

D. Liability

1. The liability of the Company for losses or damages of any kind arising out of mistakes, omissions, interruptions, delays, errors or defects in transmission, or failure or defects in any facility furnished by the Company, occurring in the course of furnishing NE311 Service, or of the Company in failing to maintain proper standards of maintenance and operation or to exercise reasonable supervision, shall in no event exceed an amount equivalent to the proportionate charge to the NE311 Service Provider for the NE311 Service and local exchange services for the period of service during which such mistake, omission, interruption, delay, error or defect in transmission or defect or failure in facilities occurs. The Company has no liability for losses or damages caused by the negligence of the NE311 Service Provider.

2. The Company's entire liability to any person for interruption or failure of the NE311 Service shall be limited to the terms set forth in this section and other sections of this Tariff.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 47

FCC DESIGNATED N11 SERVICES

V. NON-EMERGENCY 311 SERVICE (Continued)

D. Liability (Continued)

3. The Commission's local assignment and the NE311 Service Provider’s use of the 311 abbreviated dialing code is subject to preemption by the Federal Communications Commission. The Company shall not be liable to the NE311 Service Provider for any damages the NE311 Service Provider may incur that results from a national assignment of the 311 abbreviated dialing code.

4. The Company accepts no responsibility for obtaining subscriber record information from telephone end users.

5. The Company will make every effort to route NE311 calls to the appropriate NE311 Service Provider calling center, however, the Company will not be held responsible for routing mistakes or errors.

E. Other Terms and Conditions

1. The NE311 Service will not provide calling number information in real time to the NE311 Service Provider. If this type of information is required, the NE311 Service Provider must subscribe to compatible Caller ID service as described in Section 18 of this tariff. The Caller ID Service will only provide calling number information as described in Section 18 of this tariff.

2. The NE311 Service is provided solely for the benefit of the NE311 Service Provider. The provision of the NE311 Service by the Company shall not be interpreted, constructed or regarded, either expressly or implied, as being for the benefit of or creating any Company obligation toward any third person or legal entity other than the NE311 Service Provider.

3. A written notice will be sent to the NE311 Service Provider following oral notification when its NE311 Service unreasonably interferes with or impairs other services rendered to the public by the Company or by other subscribers of abbreviated dialing codes. If after notification the NE311 Service Provider makes no modification in method of operation or in the service arrangements that are deemed service-protective by the Company, or if the NE311 Service Provider is unwilling to accept the modifications, or if the NE311 Service Provider continues to cause service impairment, the Company reserves the right, at any time, without further notice, to institute protective measures, up to and including termination of service. In an emergency situation as defined by the Company, the Company reserves the right, at any time, without notice, to institute protective measures, up to and including termination of service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 48

FCC DESIGNATED N11 SERVICES

V. NON-EMERGENCY 311 SERVICE (Continued)

F. Rates

1. The nonrecurring charges associated with the initial NE311 Service establishment are specified in Section V.F.7. following. These are one-time charges which apply only when the NE311 Service Provider establishes or modifies NE311 Service.

2. The NE311 Service Provider shall pay a nonrecurring Central Office Charge for each Company host central office out of which NE311 Service is established.

a. Some Company local exchanges are served by more than one host central office. In order to establish NE311 Service in such an exchange, the NE311 Service Provider shall pay a Central Office Charge for each host central office in the Company local exchange.

b. Some host central offices serve more than one Company local exchange. If the NE311 Service Provider makes applications to establish NE311 Service in multiple Company local exchanges served by the same host central office, then only one Central Office Charge shall apply. However, the full Central Office Charge applies whether or not the NE311 Service Provider requests NE311 Service in all the Company local exchanges served by that host central office.

3. An Exclusion Charge Applies for the establishment of NE311 Service as follows:

a. When the NE311 Service Provider does not simultaneously establish NE311 Service in every Company local exchange served by a host central office, the NE311 Service Provider shall pay an Exclusion Charge for each Company local exchange served by the host central office where NE311 Service is not established.

b. When a Company local exchange is once excluded, but the NE311 Service Provider later applies to establish NE311 Service in the Company local exchange, an Exclusion Charge again applies for each local exchange that continues to be excluded.

c. When the NE311 Service Provider requests a different telephone number be translated to the 311 abbreviated dialing code in a participating central office than the telephone number translated to the 311 abbreviated dialing code in the host central office.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 49

FCC DESIGNATED N11 SERVICES

V. NON-EMERGENCY 311 SERVICE (Continued)

F. Rates (Continued)

4. A nonrecurring Number Change Charge applies when the NE311 Service Provider changes the telephone number into which the NE311 abbreviated dialing code is translated. The Number Change Charge shall be applied on a per telephone number, per host central office basis.

5. When translating the seven or ten digit number to the 311 abbreviated dialing code, applicable Service Connection Charges and Service Charges as specified in Section 4 of this tariff will apply as follows, in addition to the rates listed below.

6. The minimum service period for NE 311 Service is one month.

a. A business rate Record Order Charge per order, as found in Section 4 of this tariff.

7. Rates

a. Basic Service

Nonrecurring Charge

1) Central Office Charge (per host Central Office) $250.00

2) Exclusion Charge (per Exchange) 325.00

3) Number Change Charge (per telephone number) 50.00

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 50

FCC DESIGNATED N11 SERVICES

VI. 811 SERVICE FOR ”ONE CALL” NOTIFICATION SYSTEMS (1) ▲

A. General

1. 811 Dialing Code ("811 Service") is a three digit local dialing arrangement for telephone voice transmission access to all certified ”One Call” notification systems entities as a toll free call. The Federal Communications Commission (FCC) assigned 811 dialing code for nationwide access to One Call Notification Systems.

2. The three digit 811 abbreviated dialing One Call Notification code is assigned to the Approved “811 Provider” for use in providing One Call notification services to the public by way of voice grade facilities.

3. 811 is available from United Telephone Company of Texas (the Company) within the Company's service area only. To provide access to 811 to end users in another company service area or to a Competitive Local Exchange Carrier (CLEC) end users within the local calling area, the 811 Provider must make appropriate arrangements with the other company or CLEC serving that territory. The 811 Provider should work separately with competing local providers to ascertain that its end user customers will be able to reach one-call services provided by dialing 811.

4. All 811 abbreviated dialing code calls must be local in nature and will not result in any Extended Area Service, Extended Metropolitan Service, Optional Extended Area Service, Optional Extended Metropolitan Service, Extended Local Calling, intraLATA toll, interLATA long distance or pay-per-call charges to Company subscribers. However, 811 Service calls may result in local measured service charges where Company subscribers' service plans include such charges.

5. The 811 Service is not available for the following classes of service: inmate service, 1+ and 0+ calling, 0- operator assisted calling and 101XXXX calling. 811 Service is otherwise available wherever local service is accessible.

(1) This service will be available no later than April, 2007 per FCC mandate.

▲ Central Telephone Company of Texas dba Embarq concurs in the charges and regulations governing this service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 51

FCC DESIGNATED N11 SERVICES

VI. 811 SERVICE FOR ”ONE CALL” NOTIFICATION SYSTEMS (Continued)

B. Obligations of the Approved ”One Call” Notification Systems Provider

1. The 811 Provider must submit a written application to the Company for 811 Service at the state level. The 811 Provider may establish 811 Service in all or part of the Company's exchanges. There may be only one 811 Provider per exchange.

2. The 811 Provider's written application to establish 811 Service in a Company local exchange must include the following:

a. The local, foreign exchange or toll free telephone number into which the Company should translate the dialed 811 abbreviated code. If the 811 Provider desires to change the telephone number into which the 811 abbreviated dialing code is translated, the 811 Provider must pay a Number Change Charge as found in Section VI.F.5.

b. For network sizing and protection, an estimate of annual call volumes and holding time for calls to the 811 Service.

c. An acknowledgment of the possibility that the Commission’s assignment of the 811 abbreviated dialing code may be recalled at any time.

3. Local Calling for Company Subscribers

a. The 811 Provider, in cooperation with the Company, will assure that all 811 Service calls are local and do not generate Extended Area Service, Extended Metropolitan Service, Optional Extended Area Service, Optional Extended Metropolitan Service, Extended Local Calling, intraLATA toll, interLATA long distance or pay-per-call charges for Company subscribers.

b. When the 811 Provider applies for 811 Service from the Company, the 811 Provider must supply the Company with a toll free number. The Company will translate the 811 digits into the telephone number provided by the 811 Provider.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 52

FCC DESIGNATED N11 SERVICES

VI. 811 SERVICE FOR ”ONE CALL” NOTIFICATION SYSTEMS (Continued)

B. Obligations of the Approved ”One Call” Notification Systems Provider (Continued)

4. The 811 Provider is liable for and will indemnify, protect, defend and hold harmless the Company against all suits, actions, claims, demands and judgments, plus any expenses and counsel fees incurred by the Company on account thereof, whether suffered, made, instituted or asserted by the 811 Provider or any other party or person, for any personal injury to or death of any person or persons, or for any loss, damage or destruction of any property, whether owned by the 811 Provider or others, arising out of or resulting directly or indirectly from the 811 Service.

5. The 811 Provider must develop an appropriate method for responding to 811 calls directed to it out of confusion or in error by Company subscribers.

6. The 811 Provider must subscribe to termination facilities and lines in sufficient quantities to provide adequate service to the public, and enable the 811 Provider to receive calls to the 811 Service during normal business hours.

7. The 811 Service is provided on the condition that the 811 Provider subscribes to termination facilities and lines in sufficient quantities to adequately handle calls to the 811 Service without interfering with or impairing any services offered by the Company.

8. The 811 Provider must comply with all present and future state and federal rules pertaining to abbreviated dialing codes.

9. The 811 Provider is responsible for obtaining all necessary permissions, licenses, written consents, waivers and releases and all other rights from all persons whose work, statements or performances are used in connection with the 811 Service. The 811 Provider is also responsible for obtaining all necessary permissions, licenses, written consents, waivers and released and all other rights from all holders of copyrights, trademarks and patents used in connection with the said service.

10. The 811 Provider must respond promptly to all complaints lodged with any regulatory authority against the 811 Service. If requested by the Company, the 811 Provider must assist the Company in responding to complaints made to the Company concerning the 811 Service.

11. The 811 Provider shall not promote the 811 Service with the use of an auto dialer or broadcasting of tones that dial the 811 abbreviated dialing code.

12. The 811 Provider must work separately with competitive local exchange carriers ("CLECs") operating and serving customers in the Company's exchanges to ascertain whether 811 abbreviated dialing will be available to their end users.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11 First Revised Sheet No. 53 Cancels Original Sheet No. 53

FCC DESIGNATED N11 SERVICES

VI. 811 SERVICE FOR ”ONE CALL” NOTIFICATION SYSTEMS (Continued)

C. Obligations of the Company

1. The Company will establish the 811 Service within ninety days after receipt of the 811 Provider's completed application(s) for service or the effective date of this Tariff, whichever is later.

2. When an 811 Service call is placed by the calling party via interconnection with an interexchange carrier, the Company cannot guarantee the completion of said 811 Service call, the quality of the call or any features that may otherwise be provided with 811 Service.

3. The Company will route 811 calls originating from end users on the Company’s local exchange network whether they purchase service directly from the Company or from another provider reselling company service. Otherwise, the Company is not responsible for establishing 811 Service for calls originating from other telecommunications providers.

4. The Company does not undertake to answer and forward 811 Service calls but furnishes the use of its facilities to enable the 811 Provider to respond to such calls at the 811 Provider established call centers

5. The rates charged for 811 Service do not contemplate the inspection or constant monitoring of facilities to discover errors, defects, and malfunctions in service, nor does the Company undertake such responsibility. The 811 Provider must conduct such operational tests as, in the judgment of the 811 Provider, are required to determine whether the Company's facilities are functioning properly for its use. The 811 Provider must promptly notify the Company in the event the Company's facilities are not functioning properly.

D. Liability

1. The liability of the Company for losses or damages of any kind arising out of mistakes, omissions, interruptions, delays, errors or defects in transmission, or failure or defects in any facility furnished by the Company, occurring in the course of furnishing 811 Service, or of the Company in failing to maintain proper standards of maintenance and operation or to exercise reasonable supervision, shall in no event exceed an amount equivalent to the proportionate charge to the 811 Provider for the 811 Service and local exchange services for the period of service during which such mistake, omission, interruption, delay, error or defect in transmission or defect or failure in facilities occurs. Notwithstanding the above, the Company’s liability, if any, for its gross (N) negligence or willful misconduct is not limited by this tariff. (N)

ISSUED: May 21, 2007 EFFECTIVE: May 31, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 54

FCC DESIGNATED N11 SERVICES

VI. 811 SERVICE FOR ”ONE CALL” NOTIFICATION SYSTEMS (Continued)

D. Liability (Continued)

2. The Company is not liable for any losses or damages caused by the negligence of the 811 Provider.

3. The Company's entire liability to any person for interruption or failure of the 811 Service is limited to the terms set forth in this and other sections of this Tariff.

4. The Commission’s local assignment and the 811 Service Provider’s use of the 811 abbreviated dialing code is subject to preemption by the Federal Communications Commission. The Company shall not be liable to the 811 Service Provider for any damages the 811 Service Provider may incur that results from a national assignment of the 811 abbreviated dialing code.

5. The Company will make every effort to route 811 calls to the appropriate 811 Service Provider calling center, however, the Company will not be held responsible for routing mistakes or errors.

E. Other Terms and Conditions

1. The 811 Service will not provide calling number information in real time to the 811 Provider. If this type of information is required, the 811 Provider must subscribe to compatible Caller ID service as described in Section 18 of this Tariff. The Caller ID service will only provide calling number or name and number information as described in Section 18 of this Tariff.

2. The 811 Service is provided for the benefit of the 811 Provider. The provision of the 811 Service by the Company shall not be interpreted, constructed or regarded, either expressly or implied, as being for the benefit of or creating any Company obligation toward any third person or legal entity other than the 811 Provider.

3. A written notice will be sent to the 811 Provider following oral notification when its 811 Service unreasonably interferes with or impairs other services rendered to the public by the Company or by other subscribers of abbreviated dialing codes. If after notification the 811 Provider makes no modification in method of operation or in the service arrangements that are deemed service-protective by the Company, or if the 811 Provider is unwilling to accept the modifications, or if the 811 Provider continues to cause service impairment, the Company reserves the right, at any time, without further notice, to institute protective measures, up to and including termination of service.

4. In an emergency situation as determined by the Company, the Company reserves the right, at any time, without notice, to institute protective measures, up to and including termination of service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 11

Original Sheet No. 55

FCC DESIGNATED N11 SERVICES

VI. 811 SERVICE FOR ”ONE CALL” NOTIFICATION SYSTEMS (Continued)

F. Rates and Charges

1. A Central Office Charge applies for each Company host central office out of which the 811 Provider orders 811 Service, as follows:

a. When a Company exchange is served by more than one host central office, a Central Office Charge is applicable for each host central office in that exchange.

b. If the 811 Provider establishes 811 Service in multiple Company exchanges served by the same host central office, only one Central Office Charge applies.

2. A Number Change Charge applies when the 811 Provider established service or applies to change the telephone number into which the 811 abbreviated dialing code is translated. The Number Change Charge is applied on a per telephone number, per host central office basis.

3. When translating the seven or ten digit number to the 811 abbreviated dialing code, applicable Service Connection Charges as specified in Section 17 of this Tariff will apply as follows, in addition to the rates listed in Section VI.F.5. below.

4. The minimum service period for 811 Service is one month.

5. Rates:

Nonrecurring Charge

Central Office Charge (1) $250.00

Number Change Charge (per Telephone Number) 50.00

(1) This is applied at the host central office only, and covers all offices that are part of that host complex with a single translated number. If more than one translated number is desired, apply the charge as many times as there are numbers. Any given office must have one number translated to – this cost does not cover cases where the Local Agency wants two or more translated numbers. Such a case would require class marking or a database.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 12 3rd Revised Sheet No. 1 Cancels 2nd Revised Sheet No. 1

CONNECTION WITH CERTAIN FACILITIES OF CUSTOMERS

I. GENERAL

A. Customer-provided terminal equipment, protective circuitry and communications systems may be used with the facilities furnished by the Telephone Company for telecommunications services as provided in Part 68 of the FCC Rules and Regulations.

B. Copies of Part 68 of the FCC Rules and Regulations are available in the General Office of the Telephone Company.

C. Customer-provided terminal equipment, protective circuitry, data equipment, or communications systems, may not be directly connected to party-line service, with the exception that customer provided single-line telephone instruments of a type registered by the FCC for one-party service may be connected to two and/or four-party service if equipped with the proper party-line ringer or the ringer is disconnected.

D. Customers desiring to connect their single-line telephone instruments to the Telephone Company's two and four-party exchange facilities may bring the instrument to the local business office so that it may be tested for proper operation. At the customer's request, the Company will disconnect the ringer or replace same with a suitable party-line ringer at a standard non-tariffed charge.

E. Customers will be billed a Trouble Isolation Charge (a.k.a. Maintenance of Service Charge) as specified in Section 17 of the General Exchange Tariff for each service call to the customer's premises when service is impaired due to the connection of customer-provided terminal equipment or facilities.

F. Multi-Line Telephone Systems

All multi-line telephone systems connected to the Company’s network on or after February 16, 2020, must be configured to allow direct “911” dialing by any end user and must be configured to send MLTS notifications as described in Section 7.XII.K.1. (T)

G. Multiline telephone systems (“MLTS”) required to comply with F. preceding must be (N)

capable of conveying the dispatchable location of a 911 caller to a public safety

answering point (“PSAP”) as described in Section 7.XII.K.2. (N) .

ISSUED: April 9, 2021 EFFECTIVE: June 1, 2021 TX2021-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 12

Original Sheet No. 2

CONNECTION WITH CERTAIN FACILITIES OF CUSTOMERS

II. AUTOMATIC DIALING - ANNOUNCING DEVICES

A. An automatic dialing-announcing device (ADAD) is any automatic equipment which incorporates storage capability of numbers to be called or a random or sequential number generator that produces numbers to be called and the ability to dial calls; and has the capability, working alone or in conjunction with other equipment, with or without manual assistance, of distributing a prerecorded message to the number called.

B. Use of Telephone Company facilities or service in connection with automatic dialing- announcing devices will not knowingly be permitted unless prior written agreement has been reached between the called and calling parties or the ADAD is used in accordance with the following:

1. After the called party hangs up, the device automatically creates a disconnect signal or on-hook condition, within 15 seconds, which allows the called party's line to be released or terminates and creates a disconnect signal or on-hook condition when the call is not completed within 30 seconds.

2. The recorded message begins or is preceded by a statement which includes the calling party's name, address, call-back telephone number, the purpose of the message and advises that the message is a recording.

a. Customers transmitting factual public announcements (time and temperature, weather, stock market quotations, etc.) are excluded from this provision.

3. Calls to emergency telephone numbers of hospitals, law enforcement offices, fire departments or other agencies providing emergency services are excluded from calls originating from ADAD.

4. Calls originating from ADAD before 9:00 a.m. or after 9:00 p.m. are not permitted.

5. No significant impairment of service, as determined by the Telephone Company, will occur due to use of ADAD.

C. The preceding provisions shall not be interpreted to apply to any automatic security device installed pursuant to the request of the tenant or owner of the premises for security, emergency, health, environmental or other monitoring purposes.

D. Failure of the customer to comply with provisions set forth in this tariff may result in refusal to provide or termination of service until the non-compliance is remedied.

E. The Telephone Company will not assume any responsibility for libel, slander or infringement of copyright arising from material transmitted over facilities provided for use in connection with ADAD or any other claims arising from any act or omission of the customer in connection with facilities furnished by the Telephone Company.

F. Facilities for this service will be provided in accordance with other sections of this and the Local Exchange Tariff.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 13 (T) First Revised Sheet No. 1 Cancels Original Sheet No. 1

SATISFACTION GUARANTEE PROGRAM ▲ (C)

I. GENERAL

A. A Satisfaction Guarantee Program is available to business customers who subscribe to any of the following qualifying services:

Individual Business Line Key Trunk PBX Trunk Centrex

B. When business customers notify the Telephone Company within thirty (30) days after installation of a qualifying service(s) that they are not satisfied with their service(s) and subsequently request disconnection of that service(s), they are eligible to receive a full credit of all nonrecurring charges directly associated with the establishment of the qualifying service(s) and the monthly charges billed for the service(s) through the date of disconnection.

C. To receive credit, the customer must submit a cancellation notice to the Telephone Company via a web based on-line form within thirty days of the service installation date and at least 5 days before the Telephone Company receives a disconnection request from the customer or the customer’s new service provider.

D. When the last day of the thirty-day period falls on a weekend or legal holiday, the customer must submit the web-based cancellation notice no later than the first business day following the weekend or legal holiday, to be eligible for credit.

E. Customers who request disconnection under this program will not be assessed an early termination fee or payment of any minimum service period amounts that would otherwise apply for early disconnection of the service(s).

F. Reimbursements will be issued in the form of a bill credit or check. The customer is responsible for payment of all invoices issued prior to the date of disconnection and for payment of the final invoice rendered by the Telephone Company.

II. LIMITATIONS

A. This program is not available to customers who cancel service(s) and replace the service(s) with another service provided by the Telephone Company. This program also is not available to customers for whom installation of the Telephone Company’s tariffed services required special construction or special configurations.

B. If the customer who cancels the service(s) provided by the Telephone Company obtains service from a local service provider, the Telephone Company will not reimburse the customer for any installation charges passed on by that provider to establish service.

C. Each customer will be entitled to the credit one time per service. (C)

▲ Central Telephone Company of Texas dba CenturyLink concurs in the rates and regulations (T) governing this service.

ISSUED: February 18, 2011 EFFECTIVE: February 28, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 13 (T) First Revised Sheet No. 2 Cancels Original Sheet No. 2

SATISFACTION GUARANTEE PROGRAM (C)

II. LIMITATIONS (Continued)

D. The Satisfaction Guarantee Program only applies to services provided under the regulations and rates specified in this Tariff and does not apply to services offered under a separately negotiated contract.

E. The Telephone Company is not liable for any outage, damages or inconvenience encountered by the customer when switching to an alternative local service provider. (C)

ISSUED: February 18, 2011 EFFECTIVE: February 28, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14 Sixth Revised Sheet No. 1 Cancels Fifth Revised Sheet No. 1

SPECIAL PROMOTIONS

I. GENERAL

Pursuant to P.U.C. SUBST R. §26.227 the Company may offer special promotions of new or existing services or products for limited periods.

II. PROMOTIONS

A. During the period June 12, 2006 through December 31, 2007, the Company will waive all nonrecurring installation and/or service charges that are otherwise applicable for installation of a Solutions-Business Package.

B. During the period February 16, 2009 through September 30, 2010, business customers (C) who subscribe to Business One Party, Key Trunk, and/or Private Branch Exchange (PBX) Trunk service may be eligible for waiver of all service connection charges (excluding inside wire, construction, or CPE installation) that are otherwise applicable. To receive a waiver, customers who are contacted by the Company or who contact the Company and request this promotion must subscribe to one of the qualifying services, and commit to one year of service for the services described above. Customers subscribing to services under this promotion who discontinue service prior to meeting the one year commitment will be assessed all charges originally waived under the promotion. There is no limit to the number of times a customer can receive this promotion provided that the customer meets the required commitment level with each subsequent order.

C. During the period January 1, 2007 through September 30, 2010, business customers who (C) subscribe to Centrex Service II may be eligible for waiver of all nonrecurring installation and service connection charges (excluding inside wire, construction, or CPE installation) that are otherwise applicable. To receive a waiver, customers who are contacted by the Company or who contact the Company and request this promotion must subscribe to one of the qualifying services, and must commit to a minimum of a one year term. Customers subscribing to services under this promotion who discontinue service within one year of installation will be assessed all charges originally waived under the promotion. There is no limit to the number of times a customer can receive this promotion provided that the customer meets the required commitment level with each subsequent order.

D. During the period February 16, 2009 through September 30, 2010, business customers (C) who subscribe to ISDN PRI, Enhanced Frame Relay, DigiLink, TransLink, and/or Lightlink service may be eligible for waiver of all nonrecurring installation and service connection charges (excluding inside wire, construction, or CPE installation) that are otherwise applicable. To receive a waiver, customers who are contacted by the Company or who contact the Company and request this promotion must subscribe to one of the qualifying services, and must commit to a minimum of a one year term. Customers subscribing to services under this promotion who discontinue service within one year of installation will be assessed all charges originally waived under the promotion. There is no limit to the number of times a customer can receive this promotion provided that the customer meets the required commitment level with each subsequent order.

E. During the period February 1, 2007 through December 31, 2007, when a business customer subscribes to Connection Central Bundle under a one or two year commitment, the Company will waive all applicable service connection charges.

ISSUED: June 22, 2010 EFFECTIVE: July 2, 2010

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 14 First Revised Sheet No. 2 Cancels Original Sheet No. 2

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

F. Beginning February 1, 2007 through December 31, 2007, new business customers who are (C) contacted by the Company or who contact the Company and request this promotion when subscribing to Complete Business Bundle or Connection Central Bundle will receive a $75 bill credit when they also subscribe to High-speed Internet under a two year term commitment. The bill credit will appear on the third month’s bill.

G. During the period February 15, 2007 through June 15, 2007, new and existing business (C) customers who are contacted by the Company or who contact the Company and request this promotion may be eligible for a one-time bill credit when they subscribe to one or more of the following qualifying services: ISDN-PRI, Enhanced Frame Relay, ATM, Digilink, Translink, Lightlink, Individual Voice Channels for Custom Access Solutions, and Digital Trunking Service. To be eligible, customers must establish a new account or add to an existing account and order a qualifying service(s), with a resulting monthly spend of $300 or more. Charges for all regulated and non-regulated services (excluding taxes, surcharges and other fees) contribute towards the monthly spend. The bill credit will be issued for the first month’s charges for each qualified service added to the customer’s account under this promotion.

There is no limit to the number of qualifying services that a customer can subscribe to under this promotion, nor is there a limit to the number of times a customer can order additional qualifying services and qualify for the bill credit during the promotional period.

The first month's service for which credit will be issued will count as the first month of service under the minimum service period or term commitment period. If a customer discontinues service for which credit was issued prior to the end of required service period, credits issued under this promotion will not be rescinded; however, customers who discontinue service prior to the end of the minimum service or term commitment period are responsible for the termination liability charges normally applicable for that service.

The Company will also issue a bill credit for Key Trunks and Private Branch Exchange (PBX) Trunks when new customers who subscribe to one of the qualifying services listed above also subscribe to Key and/or PBX trunks on the same order, provided that the total monthly spend for all of the services ordered is at least $300 per month.

ISSUED: April 20, 2007 EFFECTIVE: May 1, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 14

Original Sheet No. 3

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

H. During the period April 12, 2007 through December 31, 2007, new business customers may be eligible for a one-time bill credit when they subscribe to one or more of the following qualifying services: Business One Party, Key Trunk, Private Branch Exchange (PBX) Trunk, Centrex Service II, ISDN-PRI, PRI-Bundle, Individual Voice Channels for Custom Access Solutions, and Digital Trunking Service. To be eligible, customers must establish a new account and order a qualifying service(s) under a three year or more term commitment with a resulting monthly spend of $300 or more. Charges for all qualifying services (excluding taxes, surcharges and other fees) contribute towards the monthly spend. All nonrecurring installation and service connection charges normally applicable will also be waived under this promotion (excluding inside wire, construction, or CPE installation).

The credit, as specified below, will be reflected on the customer’s bill in the next full month’s billing cycle.

Qualifying Services Monthly Charges Credit Amount

$300 - $350 $ 300 Over $350 - $400 $ 400 Over $400 - $450 $ 400 Over $450 - $500 $ 500 Over $500 - $550 $ 500 Over $550 - $600 $ 600 Over $600 - $650 $ 600 Over $650 - $700 $ 700 Over $700 - $750 $ 700 Over $750 - $800 $ 800 Over $800 - $850 $ 800 Over $850 - $900 $ 900 Over $900 - $950 $ 900 Over $950 - $1,000 $1,000

ISSUED: April 2, 2007 EFFECTIVE: April 12, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 14

Original Sheet No. 4

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

H. The credit, as specified below, will be reflected… (Continued)

Qualifying Services Monthly Charges (Cont’d) Credit Amount (Cont’d)

Over $1,000 - $1,050 $1,000 Over $1,050 - $1,100 $1,100 Over $1,100 - $1,150 $1,100 Over $1,150 - $1,200 $1,200 Over $1,200 - $1,250 $1,200 Over $1,250 - $1,300 $1,300 Over $1,300 - $1,350 $1,300 Over $1,350 - $1,400 $1,400 Over $1,400 - $1,450 $1,400 Over $1,450 - $1,500 $1,500 Over $1,500 - $1,550 $1,500 Over $1,550 - $1,600 $1,600 Over $1,600 - $1,650 $1,600 Over $1,650 - $1,700 $1,700 Over $1,700 - $1,750 $1,700 Over $1,750 - $1,800 $1,800 Over $1,800 - $1,850 $1,800 Over $1,850 - $1,900 $1,900 Over $1,900 - $1,950 $1,900 Over $1,950 - $2,000 $2,000 Over $2,000 $2,000

There is no limit to the number of qualifying services that a customer can subscribe to under this promotion.

The first full month's service for which credit will be issued will count as the first month of service under the term commitment period. If a customer discontinues service for which credit was issued prior to the end of required service period, credits issued under this promotion will not be rescinded; however, customers who discontinue service prior to the end of the term commitment period are responsible for the termination liability charges, where applicable, for the service(s) that are prematurely disconnected.

ISSUED: April 2, 2007 EFFECTIVE: April 12, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 14 Second Revised Sheet No. 5 Cancels First Revised Sheet No. 5

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

I. During the period June 25, 2007 through December 31, 2008, business customers who are (C) subscribed to Key Trunks, Private Branch Exchange (PBX) Trunks, ISDN-PRI, Enhanced Frame Relay Service, ATM Service, DigiLink, TransLink, LightLink, Digital Trunking Service, Centrex Service II, PRI Bundle, or Individual Voice Channels for Custom Access Solution will be eligible for two bill credits when they contact the Company to inform them that they have received a better priced offer for the same or comparable service(s) from a competitor. The customer's charges for the specific service(s) for which they have received the offer must equal or exceed $50 (excluding long distance, taxes, surcharges, and other fees). The credits, as specified below, will be reflected on the customer’s bill for the first and third month bills following the customer’s acceptance of this promotion:

Monthly Charges Credit Amount $50 - $ 99.99 $ 50 $100 - $ 199.99 $ 100 $200 - $ 299.99 $ 200 $300 - $ 399.99 $ 300 $400 - $ 499.99 $ 400 $500 - $ 599.99 $ 500 $600 - $ 699.99 $ 600 $700 - $ 799.99 $ 700 $800 - $ 899.99 $ 800 $900 - $1,000.00 $ 900

J. During the period June 25, 2007 through December 31, 2008, business customers who (C) subscribe to Key Trunks, Private Branch Exchange (PBX) Trunks, ISDN-PRI, Enhanced Frame Relay Service, ATM Service, DigiLink, TransLink, LightLink, Digital Trunking Service, Centrex Service II, PRI Bundle, or Individual Voice Channels for Custom Access Solution will be eligible for two bill credits when they contact the Company to disconnect service(s) and agree to retain their service(s) with the Company. The customer’s charges for the specific service(s) must equal or exceed $50 (excluding long distance, taxes, surcharges, and other fees). The credits, as specified below, may be up to this amount, but will not exceed the customer’s monthly charges (excluding long distance, taxes, surcharges, and other fees) and will be reflected on the customer’s bill for the first and third month bills following the customer’s acceptance of this promotion:

Monthly Charges Credit Amount $50 - $ 99.99 $ 99.99 $100 - $ 199.99 $ 199.99 $200 - $ 299.99 $ 299.99 $300 - $ 399.99 $ 399.99 $400 - $ 499.99 $ 499.99 $500 - $ 599.99 $ 599.99 $600 - $ 699.99 $ 699.99 $700 - $ 799.99 $ 799.99 $800 - $ 899.99 $ 899.99 $900 - $1,000.00 $1,000.00

ISSUED: December 21, 2007 EFFECTIVE: January 1, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 14 Third Revised Sheet No. 6 Cancels Second Revised Sheet No. 6

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

K. During the period June 25, 2007 through December 31, 2008, business customers who are (C) subscribed to Local Exchange Business One Party Service, Solutions-Business Packages or Connection Central Bundle, may be eligible for two bill credits when they contact the Company to inform them that they have received a better priced offer for the same or comparable service(s) from a competitor. The customer's charges for the specific service(s) for which they have received the offer must equal or exceed $50 (excluding long distance, taxes, surcharges, and other fees). The credits, as specified below, will be reflected on the customer’s bill for the first and third month bills following the customer’s acceptance of this promotion.

Monthly Charges Credit Amount Over $50 - $150 $ 50.00 Over $150 $ 100.00

L. During the period June 25, 2007 through December 31, 2008, business customers who (C) subscribe to Local Exchange Business One Party Service, Solutions-Business Packages or Connection Central Bundle, may be eligible for two bill credits when they contact the Company to disconnect service(s) and agree to retain their service(s) with the Company. The customer’s charges for the specific service(s) must equal or exceed $50 (excluding long distance, taxes, surcharges, and other fees). The credits, as specified below, may be up to this amount, but will not exceed the customer’s monthly charges (excluding long distance, taxes, surcharges, and other fees) and will be reflected on the customer’s bill for the first and third month bills following the customer’s acceptance of this promotion.

Monthly Charges Credit Amount $0 - $50 $ 50.00 Over $50 - $100 $ 100.00 Over $100 - $200 $ 200.00 Over $200 - $300 $ 300.00 Over $300 - $400 $ 400.00 Over $400 $ 500.00

M. During the period August 10, 2007 through November 7, 2007, residence customers who contact the Company or are contacted by the Company and who subscribe to Simple Solution plus Embarq Communications, Inc. Solutions Unlimited - Option 4, will receive a one-time credit of the monthly recurring charge for Simple Solution on their local phone bill. The credit will be on the customer's first month's billing. The customer's account must be in good standing to receive this offer.

N. During the period September 1, 2007 through December 31, 2007, business customers who are not currently subscribed to the Company’s High-speed Internet may be eligible for a waiver of the monthly recurring charge for Complete Business Bundle. To be eligible, customers must be contacted by the Company or contact the Company and request this promotion, and subscribe to Complete Business Bundle and High-speed Internet under a two year term commitment.

A waiver of the monthly recurring charge for Complete Business Bundle will apply from the date of installation through December 31, 2007. This waiver only applies to the initial bundle ordered per location.

ISSUED: December 21, 2008 EFFECTIVE: January 1, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 14 Fourth Revised Sheet No. 7 Cancels Third Revised Sheet No. 7

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

O. Beginning January 1, 2008, a bill message and/or insert will be sent quarterly to all business customers with 99 lines/trunks or fewer, notifying them of their eligibility for a $10 invoice credit when they contact the Company to discuss their service needs. Customers who contact the Company from January 1, 2008 through December 31, 2008, and notify the Company representative that they are calling in response to the promotional offer will receive a $10 credit on their next invoice when they discuss their current services and service needs with the Company representatives to ensure they are subscribed to the most appropriate services for their business needs.

Customers who respond to this promotion and receive the $10 invoice credit will be eligible to participate in this promotional offer again six months after the first credit is issued, as long as the six-month period ends before December 31, 2008. To receive a second invoice credit, customers must contact the Company, notify the Company representative that they are responding to the promotional offer, and request an additional review of their services and business needs.

P. During the period January 1, 2008 through June 30, 2008, business customers who are not currently subscribed to the Company’s High-speed Internet may be eligible for a one-time waiver of the monthly recurring charge for Complete Business Bundle or Connection Central Bundle. To be eligible, customers who are contacted by the Company or contact the Company and request this promotion must subscribe to (1) Complete Business Bundle or Connection Central Bundle and (2) High-speed Internet under a two year term commitment.

The one-time waiver of the monthly recurring charge for Complete Business Bundle or Connection Central Bundle will apply for the first full month’s service after the service is installed. This waiver only applies to the initial bundle ordered per location.

Q. During the period January 1, 2008 through December 31, 2008, when business customers (C) who are contacted by the Company or who contact the Company and request this promotion subscribe to MultiLine Bundle or any Solutions-Business Package, the Company will waive all applicable service charges.

R. During the period January 14, 2008 through May 12, 2008, business customers may be eligible for a one-time or two-time waiver of monthly charges for Enhanced Frame Relay Service. To be eligible, customers who are contacted by the Company or contact the Company and request this promotion must subscribe to Enhanced Frame Relay Service and the Company's non-regulated Dedicated IP service offering under a three-year or five-year term commitment.

When a customer adds non-regulated Dedicated IP service to a new location under a three- year or greater term plan, the Company will waive the monthly recurring charges for the Frame Relay Access Line and Permanent Virtual Circuit (PVC) for the first month after the service installation. When a customer adds non-regulated Dedicated IP service and non- regulated Managed Network Service Services to a new location under a five-year term plan, the Company will waive the monthly recurring charges for the Frame Relay Access Line and the Permanent Virtual Circuit (PVC) for two months, with the waivers appearing on the customer’s first invoice after installation and the last invoice issued under the term plan.

ISSUED: June 20, 2008 EFFECTIVE: July 1, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 14 Third Revised Sheet No. 8 Cancels Second Revised Sheet No. 8

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

S. During the period January 14, 2008 through May 12, 2008, existing business customers who currently subscribe to the Company’s non-regulated Dedicated IP service may be eligible for a one-time waiver of monthly charges for Enhanced Frame Relay Service.

To be eligible, customers who are contacted by the Company or who contact the Company and request this promotion must upgrade their existing Enhanced Frame Relay Service to a higher speed under a new term commitment with the same number of months or more than remain on the existing term commitment. The Company will waive the monthly recurring charges for the Frame Relay Access Line and the Permanent Virtual Circuit (PVC) for one month, with the waiver appearing on the customer’s first invoice after the upgrade. The customer is only eligible for this promotion once for the same Frame Relay Access Line.

T. Beginning June 1, 2008 and ending December 31, 2008, a direct mailing will be sent to all (C) business customers with 99 lines/trunks or fewer, notifying them of their eligibility for a $10 anniversary invoice credit. The notice will be mailed immediately prior to the anniversary of the date on which the customer established service with the Company. A bill message reminder of this offer will also appear on the customer’s invoice during the customer’s anniversary month.

For customers with multiple accounts, only one $10 invoice credit is available, with such tied to the customer’s oldest account.

U. During the period of November 5, 2008 through February 2, 2009 new Residential Customers who are contacted by the Company or contact the Company and request this offer and who establish an account and subscribe to any Solutions Package and High Speed Internet from the Company will receive an invoice credit for up to $25.00 each on their first and second bills. In addition, customers will receive a monthly credit of $10 on their third through twelfth month's bill.

New Residential Customers who establish an account and subscribe to any Solutions Package and High Speed Internet plus DISH Service from the Company will receive an invoice credit for up to $50.00 each on their first and second bills. In addition, customers will receive a monthly credit of $20 on their third through twelfth month's bill.

The credits will be up to the amount specified, but will not exceed the customer’s monthly charges (excluding long distance, taxes, surcharges, and other fees).

Eligible customers must not have had service disconnected for non-payment and must not have any past due bills for regulated services owed to the Company. This promotion does not apply to moves, changes, or additions to an existing customer's service.

If a customer discontinues service for which credit was issued prior to the end of required service period, credits issued under this promotion will not be rescinded; however, customers who discontinue service prior to the end of the minimum service or term commitment period are responsible for the termination liability charges normally applicable for that service.

ISSUED: December 19, 2008 EFFECTIVE: January 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 14 First Revised Sheet No. 9 Cancels Original Sheet No. 9

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

V. This Market Trial Promotion will be offered from November 6, 2008 through February 3, 2009. This promotion will be offered to randomly selected Residential Customers who have had service with the Company for 60 days or less, have a first month bill of $75.00 or more, and have subscribed to any Solutions Package and/or High Speed Internet and/or DISH Service. The Company will contact these customers and inform them they will receive an invoice credit for up to $25.00 each on their first and second bills.

The credits will be up to the amount specified, but will not exceed the customer’s monthly charges (excluding long distance, taxes, surcharges, and other fees).

Customers who meet the qualifications for this promotion and are not contacted by the Company will be awarded the promotion benefit upon request.

W. During the period of November 17, 2008 through February 14, 2009, new Residential (N) Customers who are contacted by the Company or contact the Company and request this offer and who establish an account and subscribe to any Solutions Package and High Speed Internet, from the Company under a one-year commitment, will receive a credit up to $39.90 for the 2nd, 3rd and 4th months of their one-year commitment. New Residential Customers, who establish an account and subscribe to any Solutions Package and High Speed Internet, from the Company under a two-year commitment, will receive a credit up to $39.90 for the 2nd through 7th months of their two-year commitment.

The credits may be up to the amount specified, but will not exceed the customer’s monthly charges (excluding long distance, taxes, surcharges, and other fees). This promotion does not apply to moves, changes, or additions to an existing customer's service.

Customers who meet the qualifications for this promotion and are not contacted by the Company will be awarded the promotion benefit upon request. (N)

ISSUED: November 7, 2008 EFFECTIVE: November 17, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 14 Second Revised Sheet No. 10 Cancels First Revised Sheet No. 10

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

X. Beginning January 1, 2009 and ending December 31, 2009, a direct mailing will be sent to all business customers with 99 lines/trunks or fewer, notifying them of their eligibility for a $10 invoice credit. The notice will be mailed immediately after the anniversary of the date on which the customer established service with the Company.

Customers who respond to this offer within 90 days after receiving the direct mailing will receive a $10 invoice credit. The credit will appear on the customer’s bill within two billing cycles after contacting the Company. When customers respond to this offer, the Company representative will review the customer’s account and offer to discuss the customer’s services and service needs, as well as the customer’s overall satisfaction to ensure the customer is subscribed to the most appropriate services for their business needs.

For customers with multiple accounts, only one $10 invoice credit is available, with such tied to the customer’s oldest account.

Y During the period September 1, 2009 through December 31, 2009, existing business (C) customers may be eligible for two bill credits when they contact the Company to inform them (C) that they have received a better priced offer for the same or comparable service(s) from a competitor, or when they contact the Company to disconnect service(s) and agree to retain their service(s) with the Company. To be eligible, the customer's charges for the specific (C) service(s) for which they have received the offer must equal or exceed $25 (excluding long distance, taxes, surcharges, and other fees) and the customer must agree to retain the (C) service(s) for one year after receiving the bill credits. The credits, as specified below, (C) may be up to this amount, but will not exceed the customer’s monthly charges (excluding long distance, taxes, surcharges, and other fees) and will be reflected on the customer’s bill for the first and third month bills following the customer’s acceptance of this promotion. Customers (C) who discontinue service(s) for which the credits were issued prior to one year after issuance of the credits will be assessed all charges originally waived under the promotion. (C)

Monthly Charges Credit Amount (up to) $25.00 - $ 50.00 $ 50 $50.01 - $100.00 $ 100 $100.01 - $250.00 $ 250 $250.01 - $500.00 $ 500 $500.01 - $750.00 $ 750 Over $750 $1,000

The benefits awarded under this promotion may not be combined with the benefits of (C) any other currently available promotion. (C)

ISSUED: August 21, 2009 EFFECTIVE: September 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 14 Second Revised Sheet No. 11 Cancels First Revised Sheet No. 11

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

Z. During the period January 1, 2009 through December 31, 2009, business customers who are not currently subscribed to the Company’s High-speed Internet or Complete Business Bundle may be eligible for a one-time waiver of the monthly recurring charge for Complete Business Bundle. To be eligible, customers who are contacted by the Company or contact the Company and request this promotion must subscribe to (1) Complete Business Bundle under a two-year term commitment and (2) High-speed Internet (1.5 Mbps or greater) under a two year term commitment.

The one-time waiver of the monthly recurring charge for Complete Business Bundle will apply for the first full month’s service after the service is installed. This waiver only applies to the initial bundle ordered per location.

AA. During the period January 1, 2009 through December 31, 2009, business customers who are not currently subscribed to the Company’s High-speed Internet or MultiLine Bundle may be eligible for a one-time waiver of the monthly recurring charge for MultiLine Bundle. To be eligible, customers who are contacted by the Company or contact the Company and request this promotion must subscribe to (1) MultiLine Bundle under a two-year or three year term commitment; (2) High-speed Internet (1.5 Mbps or greater) under a two year term commitment; and 3) one of the following Embarq Communications, Inc. long distance plans: a) Business AnyTime (per account/location), b) Small Business Unlimited Solutions II (per line), or c) Block of Time for MultiLine Bundle (per account/location).

The one-time waiver of the monthly recurring charge for MultiLine Bundle will apply for the first full month’s service after the service is installed. This waiver applies to all qualifying MultiLine Bundles ordered.

AB. During the period October 3, 2009 through December 31, 2009, business customers who (C) order any Solutions - Business Package, MultiLine Bundle, or Solutions II – Business Complete Business Bundle II may be eligible for the waiver of all service charges (excluding (C) inside wire, construction, or CPE installation) that are otherwise applicable. To be eligible, customers who are contacted by the Company or contact the Company and request this promotion must add any Solutions Business Package, MultiLine Bundle, or Solutions II – (C) Business Complete Business Bundle II as a new line to their account. (C)

There is no limit to the number of times a customer can receive this promotion during the promotional period.

ISSUED: September 23, 2009 EFFECTIVE: October 3, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 14 Fourth Revised Sheet No. 12 Cancels Third Revised Sheet No. 12

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

AC. During the period January 1, 2009 through December 31, 2009, new and existing business customers who are contacted by the Company or contact the Company and request this promotion may be eligible for a one-time bill credit when they subscribe to ISDN-PRI and/or PRI-Bundle. To be eligible, customers must order a qualifying service(s) under a new two year or greater term commitment with a resulting monthly spend of $300 or more. Charges for all qualifying services (excluding taxes, surcharges and other fees) contribute towards the monthly spend. All nonrecurring installation and service charges normally applicable will also be waived under this promotion (excluding inside wire, construction, or CPE installation).

The credits will range from $300 to $2,000, but will not exceed the customer’s monthly charges (excluding taxes, surcharges, and other fees) and will be reflected on the customer’s bill in the next full month’s billing cycle.

There is no limit to the number of qualifying services that a customer can subscribe to under this promotion.

The first full month's service for which credit will be issued will count as the first month of service under the term commitment period. If a customer discontinues service for which credit was issued prior to the end of required service period, credits issued under this promotion will not be rescinded; however, customers who discontinue service prior to the end of the term commitment period are responsible for the termination liability charges for the service(s) that are prematurely disconnected.

AD. During the period April 1, 2009 through September 30, 2009, business customers who receive their monthly invoices in paper format may be eligible for a one-time $10 credit. To be eligible, customers who are contacted by the Company or who contact the Company and request this promotion must agree to begin receiving their monthly invoices electronically. The $10 credit is limited to one credit per customer account, and will be reflected on the customer’s invoice for the next full month’s billing cycle.

Customers who agree to convert to electronic billing under this promotion will no longer receive copies of their invoices in paper format. This credit will not be rescinded for customers who subsequently request to convert from electronic to paper invoices.

AE. From July 23, 2009 through October 12, 2009, residence customers may be eligible for a $10 (C) credit on their bill for up to three months. To be eligible, customers who are contacted by the Company or contact the Company and request this promotion must subscribe to residence one party service.

Customers who meet the qualifications for this promotion and are not contacted by the Company will be awarded the promotion benefit upon request.

ISSUED: July 13, 2009 EFFECTIVE: July 23, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14 Fifth Revised Sheet No. 13 Cancels Fourth Revised Sheet No. 13

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

AF During the period April 20, 2009 through August 20, 2009, residence customers who are contacted by the Company or who contact the Company may be eligible to receive Caller ID with Name and/or Enhanced Call Waiting at no charge for six months. To be eligible, customers who are not already subscribed to the Caller ID with Name feature and/or the Enhanced Call Waiting feature must subscribe to one or both features. In the fifth month, the Company will contact the customer to inquire as to whether they wish to continue to receive the features at the current tariffed rate at the end of the six month period. If the customer elects not to continue, the features will be removed from the customer’s account after the six month period.

Eligible customers must not have had service disconnected for non-payment and must not have any past due bills for services owed to the Company. This promotion may not be combined with any other promotion.

AG During the period September 1, 2009 through May 31, 2011, existing business customers may (C) be eligible for one bill credit when they contact the Company to inform them that they have received a better priced offer for the same or comparable service(s) from a competitor, or when they contact the Company to disconnect service(s) and agree to retain their service(s) with the Company.

To be eligible, the customer's charges for the specific service(s) for which they have received the offer must equal or exceed $25 (excluding long distance, taxes, surcharges, and other fees) and the customer must agree to retain the service(s) for one year after receiving the bill credit. The credit will be reflected on the customer’s bill for the first month bill following the customer’s acceptance of this promotion. The bill credit will be equal to the monthly charges for the services that were retained after the customer notified the company of the competitive offer or made a disconnect request (excluding long distance, taxes, surcharges, and other fees), not to exceed $500 per bill credit. A customer with multiple locations is eligible for this promotion at each location for which disconnection is requested, either all at the same time or separately, with the further caveat that the maximum credit available under this offer is $500 per customer, regardless of the number of service locations, accounts or billing telephone numbers the customer has in service. Customers who discontinue service(s) for which the credit was issued prior to one year after issuance of the credit will be assessed all charges originally waived under the promotion.

The benefits awarded under this promotion may not be combined with the benefits of any other currently available promotion.

AH During the period September 1, 2009 through May 31, 2011, existing business customers will (C) be eligible to receive two bill credits when they contact the Company to inform them that they have received a better priced offer for the same or comparable service(s) from a competitor, or when they contact the Company to disconnect service(s) and agree to retain their service(s) with the Company. To be eligible, the customer's charges for the specific service(s) for which they have received the offer must equal or exceed $25 (excluding long distance, taxes, surcharges, and other fees). The credits will be equal to 50% of the monthly charges for the services that were retained after the customer notified the company of the competitive offer or made a disconnect request (excluding long distance, taxes, surcharges, and other fees), not to exceed $250 per bill credit. The credits will be reflected on the customer’s first and third month bills following the customer’s acceptance of this promotion. A customer with multiple locations is eligible for this promotion at each location for which disconnection is requested, either all at the same time or separately, with the further caveat that the maximum credit available under this offer is $500 per customer, regardless of the number of service locations, accounts or billing telephone numbers the customer has in service.

The benefits awarded under this promotion may not be combined with the benefits of any other currently available promotion.

ISSUED: January 17, 2011 EFFECTIVE: February 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14 Fourth Revised Sheet No. 14 Cancels Third Revised Sheet No. 14 SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

AI. During the period October 3, 2009 through December 31, 2009, business customers who are not currently subscribed to the Company’s High-speed Internet or Solutions II – Business Complete Business Bundle II may be eligible for a one-time waiver of the monthly recurring charge for Solutions II – Business Complete Business Bundle II. To be eligible, customers who are contacted by the Company or contact the Company and request this promotion must subscribe to (1) Solutions II – Business Complete Business Bundle II under a one, two, or three-year term commitment and (2) High-speed Internet (1.5 Mbps or greater) under a one, two, or three year term commitment.

The one-time waiver of the monthly recurring charge for Solutions II – Business Complete Business Bundle II will apply for the first full month’s service after the service is installed. This waiver only applies to the initial bundle ordered per location.

AM. From October 19, 2009 through December 31, 2011, residence customers who are contacted (C) by the Company or who contact the Company and request this promotion may be eligible for a $10 bill credit for twelve consecutive months. Eligible customers must not have had service disconnected for non-payment and must not have any outstanding balance owed to the Company. To be eligible, customers who are not currently subscribed to a Solutions Residence Package must subscribe to either Progressive Plan or Follow-Me Plan and must agree to retain the service for a minimum of twelve months. The initial bill credit will be reflected on the customer’s first invoice issued following installation of the service.

If a customer discontinues the service prior to the end of the twelve month period, no additional credits will be applied.

ISSUED: December 3, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14

Original Sheet No. 15

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

AN. During the period January 1, 2010 through April 30, 2010, business customers may be eligible for a one-time waiver of the monthly recurring charge for Solutions - Business Package, Complete Business Bundle or Solutions II - Business Package, Complete Business Bundle II. To be eligible, customers who are not currently subscribed to the Company’s High-speed Internet, Complete Business Bundle, or Complete Business Bundle II who are contacted by the Company or contact the Company and request this promotion must subscribe to:

(1) Complete Business Bundle with High-speed Internet (1.5 Mbps or greater) under a two year or three term commitment; or

(2) Complete Business Bundle II with High-speed Internet (1.5 Mbps or greater) under a two year or three year term commitment.

The one-time waiver of the monthly recurring charge for Complete Business Bundle or Complete Business Bundle II will apply for the first full month’s service after the service is installed. This waiver only applies to the initial bundle ordered per location. This promotion may not be combined with any other promotion.

AO. During the period January 1, 2010 through April 30, 2010, business customers may be eligible for a one-time waiver of the monthly recurring charge for MultiLine Bundle. To be eligible, customers who are not currently subscribed to the Company’s High-speed Internet or MultiLine Bundle who are contacted by the Company or contact the Company and request this promotion must subscribe to all of the following services:

(1) MultiLine Bundle under a two-year or three year term commitment;

(2) High-speed Internet (1.5 Mbps or greater) under a two year term commitment; and

(3) one of the following Embarq Communications, Inc. long distance plans: (a) Business AnyTime (per account/location); (b) Small Business Unlimited Solutions II, per line; or (c) Block of Time for MultiLine Bundle, per account/location.

AP. During the period January 1, 2010 through April 30, 2010, business customers may be eligible for the waiver of all service charges (excluding inside wire, construction, or CPE installation) that are otherwise applicable for any Solutions II Business Package or MultiLine Bundle. To be eligible, customers who are contacted by the Company or contact the Company and request this promotion must add any Solutions II Business Package or MultiLine Bundle as a new line to their account.

There is no limit to the number of times a customer can receive this promotion during the promotional period. This promotion may not be combined with any other promotion.

ISSUED: December 21, 2009 EFFECTIVE: January 1, 2010

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14 Third Revised Sheet No. 16 Cancels Second Revised Sheet No. 16

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

AQ. During the period March 1, 2010 through May 31, 2011, existing business customers may be (C) eligible for two bill credits when they contact the Company to disconnect service(s) and instead agree to retain their service(s) with the Company. To be eligible, the customer's charges for the specific service(s) for which they were requesting disconnection must equal or exceed $25 (excluding long distance, taxes, surcharges, and other fees) and the customer must agree to retain the service(s) for one year after receiving the bill credits.

The customer will receive a bill credit on the first and third month’s bills following the customer’s acceptance of these promotion terms. The bill credits for the retained services will be equal to the monthly charges for the services that were retained after the disconnect request (excluding long distance, taxes, surcharges, and other fees), not to exceed $1,000 per bill credit.

A customer with multiple locations is eligible for this promotion at each location for which disconnection is requested, either all at the same time or separately, with the further caveat that the maximum credit available under this offer is $2,000 per customer, regardless of the number of service locations, accounts or billing telephone numbers the customer has in service.

Customers who discontinue service(s) for which the credits were issued prior to one year after issuance of the credits will be assessed all charges originally waived under the promotion.

This promotion may not be combined with any additional new promotions at the time the customer calls to disconnect service.

ISSUED: January 17, 2011 EFFECTIVE: February 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14 15th Revised Sheet No. 17 Cancels 14th Revised Sheet No. 17

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

AR. During the period April 15, 2010 through December 31, 2011, existing residence customers may be eligible for a $5 bill credit for 12 months when they contact the Company to disconnect access line service and agree to retain service with the Company. To be eligible, the customer must agree to subscribe to Solutions – Residence Package Essential Home Phone Plan.

The initial bill credit will be reflected on the customer’s first or second invoice following the customer’s acceptance of this offer and will continue for 11 consecutive months thereafter. If a customer discontinues Essential Home Phone Plan prior to the end of the 12 month period, no additional credits will be applied.

This promotion may not be combined with any other promotion.

AS. During the period January 1, 2017 through December 31, 2021, existing residence customers (C) may be eligible for a $5 bill credit for six months when they contact the Company to disconnect access line service and agree to retain service with the Company. To be eligible, a customer’s account must have and maintain a B, C, or D Credit Class rating with the Company and the customer must agree to retain flat rated one-party access line service with the Company.

The initial bill credit will be reflected on the customer’s first or second invoice following the customer’s acceptance of this offer and will continue for five consecutive months thereafter. If a customer discontinues service being promoted prior to the end of the six month period, no additional credits will be applied.

In no event will the application of this discount be used in conjunction with any other credits to take the customer’s billed amount below zero. (16-PC01)

AT. During the period April 15, 2010 through December 31. 2011, new residence customers who order Solutions – Residence Package Progressive Plan, Follow Me Plan, or Essential Home Phone Plan may be eligible for the waiver of all service charges (excluding inside wire, construction, or CPE installation) that are otherwise applicable. To be eligible, customers who are contacted by the Company or contact the Company and request this promotion must agree to establish a new account with the Company that includes (1) Progressive Plan, Follow Me Plan, or Essential Home Phone Plan; (2) Embarq Communication, Inc. long distance plan Solutions Unlimited – Option 4; and (3) the Company’s High-speed internet (at any data speed).

AU. During the period April 15, 2010 through September 30, 2010, the Company will waive all service charges (excluding charges applicable or inside wiring, construction, or CPE installation) that are otherwise applicable when business customers who are contacted by the Company or who contact the Company and request this promotion order any Solutions or Solutions II Business Package and/or MultiLine Bundle as a new line to their account. There is no limit on the number of times a customer may place orders for new lines and receive this promotional benefit during the promotional period.

ISSUED: December 17, 2020 EFFECTIVE: January 1, 2021 TX2020-19(UT)

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14 16th Revised Sheet No. 18 Cancels 15th Revised Sheet No. 18

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

AV. From May 1, 2010 through December 31, 2010, a direct mailing will be sent to all business customers with nine lines/trunks or fewer, notifying them of their eligibility for a $10 invoice credit. The notice will be mailed immediately after the anniversary of the date on which the customer established service with the Company.

For customers with multiple accounts, only one $10 invoice credit is available, with such tied to the customer’s oldest account.

AW. From January 1, 2017 through December 31, 2021, when new residence customers who are (C) contacted by the Company or who contact the Company and request this promotion establish a new account that includes an access line, the Company will waive the service charges that are otherwise applicable (excluding inside wire, construction, or CPE installation) when the customer agrees to retain service for 12 months. This waiver will only apply to the primary access line. The benefits awarded under this promotion will not be rescinded if the customer disconnects the qualifying service prior to the 12-month commitment period. (16-PC02)

AX. From June 3, 2010 through January 31, 2011, existing business customers who are contacted by the Company or who contact the Company and request this promotion may be eligible for a credit of the monthly recurring charges for Business One Party Service. To be eligible, customers who have existing Business One Party Service must install an additional Business One Party line and must agree to retain their service for a minimum of six months. Customers will receive three bill credits equal to the monthly recurring charge for that service. Credits will be issued for only one line when multiple lines are installed under the same order. The bill credits will be reflected on the first, second and third months following installation of the service.

Key Trunks, PBX Trunks and lines in rotary are not eligible for this promotion. Customers subscribing to services under this promotion who discontinue service within six months of installation will be assessed all charges originally credited under the promotion. There is no limit on the number of times a customer may place orders for new lines and receive this promotional benefit during the promotional period. This promotion may not be combined with any other promotional benefits.

ISSUED: December 17, 2020 EFFECTIVE: January 1, 2021 TX2020-19(UT)

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14 27th Revised Sheet No. 19 Cancels 26th Revised Sheet No. 19

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

AY. During the period January 1, 2017 through June 10, 2017, a 30-day satisfaction guarantee is available to residence customers who order Solutions – Residence Package, Pure Bundle with High-Speed Internet (HSI) at speeds up to and including 10 Mbps. Under this satisfaction guarantee, customers who disconnect these services within thirty days after installation will receive a credit for the monthly recurring charges that were billed through the date of disconnection when at the time of the requested disconnection they inform the Company of their subscription under this guarantee and cite their dissatisfaction with the services as the reason for the requested disconnection. When the expiration of the 30-day period falls on a weekend or legal holiday, the customer must request disconnection no later than the first business day following the weekend or legal holiday to be eligible for a credit. (16-PC03)

AZ. During the period February 2, 2017 through December 31, 2021, business customers who (C) are contacted by the Company or who contact the Company and request this promotion may be eligible for a discount on the nonrecurring charges that are applicable for installation of a new business line or trunk. To be eligible, customers must subscribe to High Speed (HSI) Internet concurrent with installation of a new line(s) or trunk(s). Packaged services (bundles) that include a business line or trunk are eligible for this promotion. Customers will receive a discount of up to $80 per business line or trunk installed for each location at which HSI is installed under the same order. There is no limit on the number of times a customer may place orders for new lines or trunks and receive this promotional benefit during the promotional period. The benefits awarded under this promotion may not be combined with the benefits of other currently available promotions that waive nonrecurring charges. (14- PB03)

Aa. During the period December 1, 2010 through March 31, 2011, existing business customers may be eligible for consecutive bill credits when they contact the Company to inform them that they have received a better priced offer for the same or comparable service(s) from a competitor, or when they contact the Company to disconnect service(s) and agree to retain their service(s) with the Company.

To be eligible, the customer must be subscribed to any business local exchange service and must agree to retain the service(s) for one year after receiving the bill credit. Eligible customers who are subscribed to any local exchange service will receive a $5.00 per line bill credit for six months when they agree to retain their service(s) for a minimum of twelve additional months, or will receive a $5.00 per line bill credit for twelve months when they agree to retain their service(s) for a minimum of twenty-four additional months. Customers may receive the credits for a maximum of ten lines during the promotional period.

Eligible customers who are subscribed to any bundled service will receive a $10.00 bill credit per bundle for six months when they agree to retain their bundled service(s) for a minimum of twelve additional months, or will receive a $10.00 bill credit per bundle for twelve months when they agree to retain their service(s) for a minimum of twenty-four additional months. Customers may receive the credits for a maximum of ten bundles during the promotional period.

The credits will begin appearing on customer bills the first month bill following the customer’s acceptance of this promotion. The benefits awarded under this promotion may be combined with the benefits of other currently available promotions.

If the customer discontinues service(s) prior to the twelve or twenty-four month commitment period, the credits issued under this promotion will be rescinded and charges for the credit amounts will be reflected on the customer's final bill. Customers are also liable for 50% of the remaining monthly recurring charges for the service(s) disconnected.

ISSUED: January 21, 2021 EFFECTIVE: February 1, 2021 TX2021-01(UT)

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14

Original Sheet No. 20

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

Ab. From February 9, 2011 through December 31, 2011, business customers with 99 lines/trunks or fewer who are not currently subscribed to the Company's High Speed Internet Service and have retained local regulated service with the Company for one year or for two years are eligible for a one-time invoice credit of up to $10. Eligible customers who are contacted by the Company or contact the Company to request this promotion, will receive the invoice credit when they respond to this promotion during their service anniversary month (the month during which service was initially established and retained without a break in service) and discuss their account with a Company representative. The representative will review the customer's account and offer to discuss the customer's services and service needs, as well as the customer’s overall satisfaction to ensure the customer is subscribed to the most appropriate services for their business needs.

Business customers who have retained service for three years, four years, or five years, are eligible to receive an upgrade to 1.544 Mbps High Speed Internet at no additional charge for three months, when they respond to the promotion during their service anniversary month. If 1.544 Mbps High Speed Internet is not available, customers with three years of continued service will receive a one-time invoice credit of up to $25, and customers with four or five years of continued service will receive a one-time invoice credit of up to $30.

Customers with six years or longer of continued service with the Company will receive a one- time invoice credit of up to $35 when they respond to this promotion during their service anniversary month.

The actual amounts of the invoice credits issued will be the sum of the customer’s monthly recurring charges (excluding long distance, taxes, surcharges, and other fees) or the credit amounts stated herein, whichever is less.

ISSUED: January 24, 2011 EFFECTIVE: February 9, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14

Original Sheet No. 21

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

Ac. From February 9, 2011 through December 31, 2011, business customers who have retained local service with the Company without a break in service for at least three years up to five years, and who currently subscribe to Pure Bundle and the Company’s High-speed Internet (HSI), are eligible to receive an invoice credit equal to the monthly recurring charges for Pure Bundle.

Eligible customers who are contacted by the Company or contact the Company to request this promotion, will receive the invoice credit when they respond to this promotion during their service anniversary month (the month during which they established local exchange service and retained their account with the Company without a break in service) to discuss their account with a Company representative. The representative will review the customer's account and offer to discuss the customer's services and service needs, as well as the customer’s overall satisfaction to ensure the customer is subscribed to the most appropriate services for their business needs.

Customers with three years of uninterrupted service will receive a one-time invoice credit for their Pure Bundle. Customers with four years or five years of continued service will receive two consecutive invoice credits, with each credit equal to the monthly recurring charges for Pure Bundle. The credit does not apply to taxes, surcharges, and other fees.

For customers with multiple service locations, the credit is available in conjunction with the service anniversary date associated with the oldest account for services at a given customer location. A single credit per location is allowed. The invoice credit will be applied to the customer's invoice within two billing cycles after the date on which customers discuss their account with a Company representative.

This promotion is not available in conjunction with any other promotional offer.

ISSUED: January 28, 2011 EFFECTIVE: February 9, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14 25th Revised Sheet No. 22 Cancels 24th Revised Sheet No. 22

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

Ad. During the period January 1, 2017 through December 31, 2021, existing Simple Choice Unlimited customers may be eligible for a $10 bill credit for 12 months when they contact the Company to disconnect service and agree to retain service with the Company. To be eligible, the customer must agree to extend their subscription to the Company’s Simple Choice Unlimited Bundle and Embarq Communication, Inc.’s Simple Choice Unlimited Long Distance plan for a minimum of 12 months. The initial bill credit will be reflected on the customer’s first or second invoice following the customer’s acceptance of this offer and will continue for 11 consecutive months thereafter. If a customer discontinues the Company’s Simple Choice Unlimited Bundle and Embarq Communication, Inc.’s Simple Choice Unlimited Long Distance plan prior to the end of the 12 month period, no additional credits will be applied. In no event will the application of this discount be used in conjunction with any other credits to take the customer’s billed amount below zero. (16-PC04)

Ae. During the period July 21, 2011 through December 31, 2014, new residence customers who order Simple Choice Unlimited Bundle may be eligible for the waiver of all service charges (excluding inside wire, construction, or CPE installation) that are otherwise applicable. To be eligible, customers who are contacted by the Company or contact the Company and request this promotion must agree to establish a new account with the Company that includes (1) Simple Choice Unlimited Bundle; and (2) the Company’s High-speed internet (at any data speed).

Af. During the period February 2, 2017 through December 31, 2021, new business customers (C) who subscribe to Unlimited Business Assist Advantage Plan may be eligible for a waiver of the nonrecurring charges otherwise applicable for installation of that service and a credit(s) of the monthly recurring charges. To be eligible, customers who are contacted by the Company or who contact the Company and request this promotion must not have had service disconnected with the Company for non-payment in the past, must not have any past due bills for services owed to the Company, and must have a satisfactory credit rating.

Nonrecurring charges otherwise applicable for installation of a new service will be waived when eligible customers subscribe to Unlimited Business Assist Advantage Plan under a one, two or three year term commitment. Additionally, customers subscribing under a one-year term will receive a credit for their first month’s charge. Customers subscribing under a two- year term will receive a credit for the monthly recurring charge on their first and second months’ invoices, and three-year term customers will receive a credit for the monthly charges on their first, second and third months’ invoices. The initial bill credit will be reflected on the customer’s first invoice issued following installation of the service. Credit amounts will not be applied for taxes and surcharges or for other services to which the customer subscribes.

If a customer discontinues service prior to the end of required service period, credits issued under this promotion will be rescinded. This promotion does not apply to moves, changes, or additions to an existing customer's service and may not be combined with any other promotions. (12-PB02)

ISSUED: January 21, 2021 EFFECTIVE: February 1, 2021 TX2021-01(UT)

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14 16th Revised Sheet No. 23 Cancels 15th Revised Sheet No. 23

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

Ag. During the period October 19, 2012 through April 28, 2014, business Core Connect customers may be eligible for a waiver of all nonrecurring charges (excluding charges applicable for inside wiring, construction, or CPE installation) that are otherwise applicable when they order additional Core Connect packages.

To be eligible, customers who are contacted by the Company or who contact the Company and request this promotion must subscribe to an additional Core Connect package under a term discount plan. The additional line(s), up to a maximum of nine, may be at the same or different locations but must be billed under the same account. This promotional offer may not be combined with other discounts unless otherwise specified.

Ah. During the period February 2, 2017 through December 31, 2021, business Core Connect 2 (C) and Core Connect 2 LITE customers may be eligible for a waiver of all nonrecurring charges (excluding charges applicable for inside wiring, construction, or CPE installation) that are otherwise applicable when they order additional Core Connect 2 or Core Connect 2 LITE packages.

To be eligible, customers who are contacted by the Company or who contact the Company and request this promotion must subscribe to an additional Core Connect 2 or Core Connect 2 LITE package under a term discount plan. The additional line(s), up to a maximum of nine, may be at the same or different locations but must be billed under the same account. This promotional offer may not be combined with other discounts unless otherwise specified. (14-PB01)

Ai. During the period January 1, 2017 through June 10, 2017, new and existing residence customers who are contacted by the Company or who contact the Company and request this promotion and subscribe to the Company’s Pure Bundle package and the Company’s non- regulated High-Speed Internet may be eligible for a $5 bill credit for 12 or 24 months.

To be eligible, the customer must agree to subscribe to the Company’s Pure Bundle and the Company’s non-regulated High-Speed Internet for either a 12 or 24 month term commitment. The customer must also agree to subscribe to one of the following qualifying services for either a 12 or 24 month term commitment: 1) a Company affiliated Verizon Wireless calling plan; 2) a Company affiliated DIRECTV programming package; 3) the Company’s non- regulated PRISM video service; and/or 4) the Company’s non-regulated home security Smart Home protection plan.

The initial bill credit will be reflected on the customer’s first or second invoice following the customer’s acceptance of this offer and will continue for the remainder of the term commitment thereafter. If a customer discontinues Pure Bundle, the Company’s High Speed Internet, or any of the four qualifying optional services prior to the end of the 12 or 24 month period, no additional credits will be applied.

In no event will the application of this discount be used in conjunction with any other credits to take the customer’s billed amount below zero. (15-PC01a)

ISSUED: January 21, 2021 EFFECTIVE: February 1, 2021 TX2021-01(UT)

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14 7th Revised Sheet No. 24 Cancels 6th Revised Sheet No. 24

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

Aj. During the period February 1, 2019 through December 31, 2021, business customers who (C) are not currently subscribed to the Company’s local voice, long distance or high-speed internet service may be eligible for a one-time waiver of the monthly recurring charge for CenturyLink Business Bundle.

To be eligible, customers who are contacted by the Company or contact the Company and request this promotion must subscribe to CenturyLink Business Bundle under a two-year term commitment. The one-time waiver of the monthly recurring charge for CenturyLink Business Bundle will apply for the first full month’s service after the service is installed. This waiver only applies to the initial bundle ordered per location.

The benefits awarded under this promotion may not be combined with the benefits of other currently available promotions that waive or credit nonrecurring charges. (17-PB01)

Ak. From January 9, 2017 through June 10, 2017, new and existing residence customers who are contacted by the Company or who contact the Company and request this promotion may be eligible for a $5 bill credit for 12 months.

To be eligible, the customer must agree to subscribe to the Company’s Pure Bundle (a.k.a. Pure Broadband Bundle) and the Company’s non-regulated High-Speed Internet for a 12 month term commitment.

The initial bill credit will be reflected on the customer’s first or second invoice following the customer’s acceptance of this offer and will continue for the remainder of the term commitment thereafter. If a customer discontinues this service prior to the end of the 12 month period, no additional credits will be applied.

In no event will the application of this discount be used in conjunction with any other credits to take the customer’s billed amount below zero. Additionally, the benefits awarded under this promotion may not be combined with the benefits of other currently available promotions. (16-PC05)

Am. Beginning February 1, 2019 through December 31, 2021, business customers who are not (C) currently subscribed to the Company’s local voice or high-speed internet service may be eligible for a one-time waiver of the monthly recurring charge for Pure Bundle (a.k.a. Pure Broadband Bundle).

To be eligible, customers who are contacted by the Company or contact the Company and request this promotion must subscribe to Pure Bundle under a two-year term commitment. The one-time waiver of the monthly recurring charge for Pure Bundle will apply for the first full month’s service after the service is installed. This waiver only applies to the initial bundle ordered per location.

The benefits awarded under this promotion may not be combined with the benefits of other currently available promotions that waive or credit nonrecurring charges. (17-PB02)

ISSUED: January 21, 2021 EFFECTIVE: February 1, 2021 TX2021-01(UT)

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 14 Original Sheet No. 25

SPECIAL PROMOTIONS

II. PROMOTIONS (Continued)

An. From April 3, 2021 through December 31, 2021, existing business customers who do not qualify for a term discount plan for local exchange service may be eligible for a bill credit when they agree to retain their basic local exchange service(s) for at least one year. To be eligible, customers must not have had service disconnected with the Company for non- payment in the past, must not have any past due bills for services owed to the Company, and must have a satisfactory credit rating. Customers must also be subscribed to business local exchange service or a bundle that includes local exchange service. Eligible customers who agree to retain service for one year will receive a bill credit equal to the monthly charge for the local exchange or bundled services retained. Customers who agree to retain service for two years will receive two consecutive bill credits equal to the monthly charge associated with the eligible services. Taxes and surcharges applied against the regular monthly charges will not be credited.

If a customer discontinues service prior to the end of agreed upon service period, credits issued under this promotion will be rescinded, and charges for credits issued will be reflected on the customer’s final invoice. This promotion does not apply to moves, changes, or additions to an existing customer's service and may not be combined with any other promotion. (21-PB01)

ISSUED: March 25, 2021 EFFECTIVE: April 3, 2021 TX2021-04(UT)

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 15

Original Sheet No. 1

RESERVED FOR FUTURE USE

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 16

Original Sheet No. 1

SPECIALIZED CUSTOMER PREMISES EQUIPMENT

I. GENERAL

Specialized Customer Premises Equipment (SCPE) is provided by the Telephone Company to customers whose hearing and/or speech are impaired.

Specialized Customer Premises Equipment consists of amplifying hand sets.

Specialized Customer Premises Equipment is available for installation with new or existing service.

Rates and charges for Specialized Customer Premises Equipment are in addition to rates and charges applicable to the customer's class of access line service.

Non-recurring charges as set forth in Section 17 apply when Specialized Customer Premises Equipment is installed to existing service. Non-recurring charges do not apply when Specialized Customer Premises Equipment is installed at the time of a new installation for access line service.

II. RATES AND CHARGES

Rates Amplifying Sets Per Month

Weak Voices $4.50 Weak Voices 3.25(1)

Hard of Hearing 2.75 Hard of Hearing 1.50(1) Hard of Hearing 3.00(1)

(1) Non-standard rate. Limited to existing customers. New customers will be furnished the sets at the standard rate.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 17

Original Sheet No. 1

SERVICE CONNECTION AND SERVICE CHARGES

I. GENERAL

Service Connection Charges to connect, move or change telephone service apply separately according to four (4) components of work as follows:

A. Service Order Charge - For receiving, recording, and processing information necessary to execute a customer's request to connect, move, or change telephone service which requires central office access work or establishes a new account.

B. Record Order Charge - For receiving, recording and processing information necessary to execute a customer's request where only the customer, business office, directory and billing records are involved or a subsequent order where no central office access work is necessary.(1)

C. Central Office Work Charge - For the work associated with the establishment or changing the line connection in the central office.

D. Access Line Work Charge - For performing work associated with the telephone line extending from the serving central office to the customer's premises. Including, but not limited to, cable cross-connections and connecting or moving the drop wire, protector, or network interface device.

E. Telephone Equipment Charge - For the installation or rearrangement of Specialized Customer Premises Equipment or Pay Telephone Equipment.

F. Trip Charge - For a trip to the Customer's premises required in connection with installation or rearrangement of service associated with Specialized Customer Premises Equipment or Semi-Public Telephone Equipment.

(1) A charge for a change in billing address or an address correction is not applicable.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 17 4th Revised Sheet No. 2 Cancels 3rd Revised Sheet No. 2

SERVICE CONNECTION AND SERVICE CHARGES

I. GENERAL (Continued)

G. Rates

1. Non-recurring, one-time charges for services requested by the customer.

A minimum of one (1) and a maximum of five (5) of the following components will apply on one request. [1] Residence Business

a. Service Order Charge SOC $16.25 $19.00 b. Record Order Charge ROC 12.50 12.50 c. Central Office Work Charge COC 6.00 6.00 d. Access Line Work Charge ALC 12.00 12.00 e. Telephone Equipment Charge [2] TEC 11.50 11.50 f. Trip Charge [2] TC 10.50 10.50

2. Miscellaneous, one-time charges per occurrence, for services requested by the customer or as circumstances warrant. Residence Business

a. Network Interface Device (NID) Charge [3] $17.95 $17.95 b. Maintenance of Service Charge [4] 95.00 95.00 (I) c. Service Charge per check or other payment instrument returned [5] 30.00 30.00

[1] Customers will have the option to pay service connection charges for initial establishment of service in three (3) equal payments beginning with the first billing.

[2] A Telephone Equipment Charge and a Trip Charge are applied when the Telephone Company installs or rearranges:

a. Specialized Customer Premises Equipment as set forth in Section 16 of this tariff.

[3] The NID charge is applicable when an existing protector is replaced with an NID at the customer's request. This charge covers the cost of the NID. Appropriate service connection charges will apply for the installation of the NID.

[4] See Page 17.1 of this section for Terms and Conditions.

[5] An Insufficient Funds Charge is applied to each check or other payment instrument returned for insufficient funds, unable to locate account, account closed, balance held, drawn against uncollected funds, two signatures required, account garnisheed, endorsement incorrect, or payment stopped. An Insufficient Funds Charge will not apply to checks returned by the bank when they are returned because of a Telephone Company error.

ISSUED: July 24, 2020 EFFECTIVE: August 3, 2020 TX2020-09

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 17.1 Original Sheet No. 2.1

SERVICE CONNECTION AND SERVICE CHARGES

I. GENERAL

G. Rates (Cont’d)

3. Trouble Isolation Charge

The Trouble Isolation Charge is applicable when the Company dispatches a technician to investigate a customer-reported trouble and a service difficulty is found to be caused by customer-provided equipment, wire, facilities, communications system or customer actions, and the customer does not have the Company repair the premises wire trouble.

The Trouble Isolation Charge also applies when a customer requests or allows the Company to dispatch a technician to investigate the reported trouble and the customer then does not allow access to the necessary in-home wiring and equipment or is not available to allow access.

This charge is waived for customers who have inside wire protection, unless the Company determines through remote testing that no trouble exists, and the customer insists on a dispatch. If no trouble is found, a Trouble Isolation Charge applies whether or not the customer has inside wire protection.

The Trouble Isolation Charge will not apply when:

• Customer is subscribed to an Inside Wire Maintenance Plan before a Company technician is dispatched.

• A service difficulty or trouble is found to be in a permanently wired telephone associated with service (i.e., no network interface device).

• The service difficulty or trouble is in Company-maintained equipment or wiring

• No trouble is found after customer allows the necessary access to in-home wiring and/or equipment.

• Customer authorizes company repair of inside wiring and/or customer-provided equipment.

ISSUED: May 12, 2020 EFFECTIVE: June 12, 2020 TX2020-06

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink Section 17 3rd Revised Sheet No. 3 Cancels 2nd Revised Sheet No. 3

SERVICE CONNECTION AND SERVICE CHARGES

I. GENERAL (Continued)

H. Service Connection Charges are in addition to any other scheduled tariff rates and charges. They apply in addition to and not in lieu of installation charges (IC), non-recurring charges (NRC) or construction charges which are found in other sections of this tariff.

I. Service Connection Charges will not apply for service reestablished, within the same exchange, after the destruction or partial destruction of the customer's premises by means beyond the control of the customer whether at the same or another location. However, if service is established at a new location and the customer later moves back to the old location, the service charges are applied in connection with the reestablishment of service at the old location.

J. The charges specified herein do not contemplate work being performed at a time when overtime or premium wages apply due to the request of the customer: nor do they contemplate work once begun being interrupted by the customer. If the customer requests overtime labor performed or interrupts work once begun, a charge in addition to the specified charges will be made equal to the additional cost involved.

1. "Cost", as used in this section, is to be interpreted to mean the cost of labor including charges for supervision and other overhead expenses.

K. Service Connection Charges are applicable for:

1. Initial installation or establishment of telephone service or off premises line terminations. No distinction is made between an installation and an outside move service request.

L. Certain interexchange service connection charges covered by Connecting Company Tariffs apply to installations, moves and changes of interexchange services such as foreign exchange lines, and other special services; and are in addition to charges in this tariff. (D)

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 17 (T) Second Revised Sheet No. 4 Cancels First Revised Sheet No. 4

SERVICE CONNECTION AND SERVICE CHARGES

I. GENERAL (Continued)

M. Lifeline Telephone Service

1. Service connection charges do not apply to eligible customers with existing residential (M) 1-Party, 2-Party or 4-Party access line service who convert to a service that is (T) eligible to receive a state and/or federal Lifeline credit, referred to following as (T) (M) Lifeline Telephone Service (LTS).

2. Service connection charges will apply when:

a. at the time LTS billing is initiated, for existing eligible residential local exchange access service customers who convert to a different grade of eligible residential service and/or directory listings or specialized customer premise equipment.

b. a customer receiving LTS billing voluntarily elects to convert to telephone service arrangements which preclude LTS eligibility.

c. new residential applicants (those without existing local exchange access service) eligible for LTS will be subject to applicable service connection charges.

3. Except as specified in 1. preceding, any subsequent moves or changes after the initial connection to LTS will be subject applicable service connection charges as outlined in Section 17.I.G preceding.

4. LTS subscribers will not be denied reestablishment of service on the basis that the subscriber was previously disconnected for non-payment of toll charges.

N United States Military (M) 1. For active duty members of the United States military and their dependents with valid military ID cards, all service connection charges typically applicable to central office reconnects will be waived when establishing local exchange access line service or transferring existing local exchange access line service from one location to another. Central office reconnects are defined as customer requests for service that do not require any physical work beyond the Company’s central office. (M)

(M) Material previously appeared on First Revised Sheet 3.

ISSUED: October 28, 2016 EFFECTIVE: December 2, 2016 TX 16-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 17 3rd Revised sheet No. 5 Cancels 2nd Revised Sheet No. 5

SERVICE CONNECTION AND SERVICE CHARGES

II. SERVICE DATE CHANGE CHARGE (C)

The customer may request a change of service date on a pending Private Line Service or (N) Design Service order prior to the service date. A change of service date is a change of the scheduled service date by the customer to either an earlier date or a later date which does not exceed 60 calendar days from the original service.

If the Company determines that the customer's request can be accommodated without delaying the service dates for orders of other customers, the service date will be changed and appropriate service charges will apply.

If the service date is changed to an earlier date, the customer will be notified by the Company that Expedited Order Charges may apply as set forth in paragraph IV. following. Such charges will apply in addition to service charges that apply for a change order.

If the requested service date exceeds 60 calendar days following the original service date, and the Company determines that the customer's request can be accommodated, the Company will cancel the original order and apply Cancellation Charges as set forth in paragraph III. following, and a new order with a new service date will be issued. In this instance, no service charge will apply for the service date change; however, normally applicable service ordering charges will apply to the new order. Failure by the Customer to notify the Company prior to the latest agreed upon service date to request a different service date may result in the application of a premises visit charge.

If a customer is unable to accept service within 30 days after the latest agreed upon service date, the order will either be cancelled or billing will commence as specified in paragraph III following for Cancellation of Order Charge. (N)

(N) (N)

ISSUED: May 1, 2017 EFFECTIVE: June 1, 2017 TX 17-05

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 17 3rd Revised Sheet No. 6 Cancels 2nd Sheet No. 6

SERVICE CONNECTION AND SERVICE CHARGES

III. CANCELLATION OF ORDER CHARGE (CANCELLATION OF APPLICATION FOR SERVICE)

A. A customer may cancel an order for the installation of a Private Line service or Design Service at any time prior to notification by the Company that service is available for the customer’s use. The cancellation date is the date the Company receives written or verbal notice from the customer that the order is to be canceled. Verbal notice to the Company must be followed by written confirmation within 10 days. If a customer is unable to accept service within 30 calendar days of the latest agreed upon service date and the order has not been cancelled by the customer, the following will apply:

- The order will be cancelled and applicable cancellation charges will apply, if the service has not been fully provisioned, or

- The order will be completed and billing will commence once the service has been fully provisioned.

A service is fully provisioned when all physical CenturyLink work has been completed (i.e. design, installation, and testing), and service is immediately available for use upon customer acceptance or activation.

B. When a customer cancels an order for the installation of a Private Line service or Design Service, a Cancellation Charge will apply as specified in Section 4.9 of the Company’s Intralata Services Tariff, unless specified otherwise for a specific service.

IV. EXPEDITED ORDER CHARGE

An Expedited Order Charge applies when a customer requests a service date for a Private Line service or Design Service that is earlier than the standard interval. If the Company agrees to provide the service on an expedited basis, charges for additional costs incurred by the Company may apply as specified in Section 6, Paragraph III, Special Construction, or as otherwise stated elsewhere in this tariff for a specific service.

ISSUED: May 1, 2017 EFFECTIVE: June 1, 2017 TX 17-05

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 1

CENTRAL OFFICE SERVICE AND FEATURES

I. FIRE REPORTING/ALARM SERVICE

A. The following rates and charges apply only to the Bridgeport, Graford and Possum Kingdom exchanges.

1. Rates for "Fire Reporting/Alarm Systems" are based on the system from a minimum of twenty stations to a maximum of forty-eight stations.

2. Included in the following rates is equipment necessary for the warning siren activation feature.

3. Not included in the following rates is a business one-party local access line. This line must be added to the service and is charged at the local business access line rate for monthly service and installation.

Service Connection Monthly 4. Exchange Charge Rate

Graford AFAETB1 N/A $10.00(1)

Possum Kingdom AFAETB1 N/A 10.00(1)

Bridgeport AFAETB1 N/A 10.00(1)

(1) Limited to existing customers at existing locations.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 2

CENTRAL OFFICE SERVICES AND FEATURES

I. FIRE REPORTING/ALARM SERVICE (Continued)

B. The Telephone Company will provide a service which permits local exchange customers to report a fire or other emergency situation directly to local authorities by means of a "Fire Reporting/Alarm System".

C. The "Fire Reporting/Alarm System" features a local telephone number which may be dialed by anyone wishing to report an emergency situation. When dialed, the local telephone number activates the fire reporting/alarm equipment which then rings the home or office telephones of all connected local authorities, such as volunteer fireman. As the local authorities answer, they are connected to the calling party and to each other so that they can obtain the details of the emergency and discuss the appropriate action to be taken.

D. Calls to the fire reporting/alarm number will cause the connected telephones to ring continuously. The continuous ringing distinguishes an emergency/fire call from normal calls. In addition, connected telephones which are in use at the time of a fire call will receive a distinctive tone on the line which will inform the user to hang-up so that the fire call may be received.

E. Another feature of the "Fire Reporting/Alarm System" permits the local authorities to activate a warning siren from each home or office telephone set which is connected to the system. The warning siren is activated by depressing a push-button installed on each individual instrument. To protect against the accidental activation of the warning siren, the push-button feature is inoperative unless the telephone hand set is off hook and connected to a working fire call.

F. Any business or residential access line may be connected to the "Fire Reporting/Alarm System" so long as all telephones use the same ringer frequency.

G. Rates for "Fire Reporting/Alarm Systems" are based on the system from a minimum of twenty telephones to a maximum of forty-eight telephones.

H. Included in the following rates is equipment necessary for the warning siren activation feature.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 3

CENTRAL OFFICE SERVICES AND FEATURES

I. FIRE REPORTING/ALARM SERVICE (Continued)

I. Not included in the following rates is a business one party local access line. This line must be added to the service and is charged at the local business access line rate for monthly service and installation.

Service Connection Monthly J. System Size Charge Rate

Service for 20 Stations NC $187.50

Service for 24 Stations NC 210.50

Service for 28 Stations NC 236.25

Service for 32 Stations NC 270.50

Service for 36 Stations NC 305.50

Service for 40 Stations NC 328.50

Service for 44 Stations NC 351.50

Service for 48 Stations NC 374.50

Grandfathered Systems (Installed Prior to 9-1-76) N/A 25.00

II. TOUCH TONE (U-TOUCH) CALLING SERVICE

A. General

1. Touch Tone Calling Service provides for the origination of telephone calls through the use of pushbutton dials in lieu of rotary dials. This service is furnished subject to the availability of Central Office facilities.

2. The service may be furnished for use with primary central office access lines. It may be furnished to either one or more customers on a primary access line.

3. Touch Tone service is provided at no charge.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (C) Second Revised Sheet No. 4 Cancels First Revised Sheet No. 4

CENTRAL OFFICE SERVICES AND FEATURES

III. CUSTOM CALLING FEATURES AND SERVICES

A. Custom calling features are optional telephone services provided in offices where facilities are available. The custom calling feature of Call Forwarding cannot be used to expand the local calling scope beyond that available to a customer's premise. Customers may subscribe to one or more of the following features:

1. Call Waiting - permits a third party to announce an incoming call to the call waiting customer while his telephone is busy with an incoming call or outgoing call. By flashing the hook-switch, the call waiting customer can be connected to the second call while holding the first, or he may alternate between the two calls. Call waiting cannot be activated when any type of call forwarding is in use.

2. Enhanced Call Waiting ▲ - permits a third party to announce an incoming call to the (C) enhanced call waiting customer while his telephone is busy with an incoming call or outgoing call. By flashing the hook-switch, the enhanced call waiting customer can be connected to the second call while holding the first, or he may alternate between the two calls. Enhanced call waiting allows the customer to turn off the call waiting tone before a call, so that his call will not be interrupted by the call waiting tone. The call waiting tone capability will automatically be restored when the call is terminated. Enhanced call waiting cannot be activated when any type of call forwarding is in use.

3. Call Forward Features ▲ - permit the forwarding of incoming calls under a variety of conditions to another telephone number either by dialing an activation code or via pre-programming by the Company. Calls may be forwarded to any number subject to the availability of the necessary facilities in the central office from which the calls are to be transferred. The customer subscribing to this service is responsible for applicable usage charges. Only one call forwarding arrangement, consisting of a single calling path, will be provided per exchange service line for which the customer subscribes to this feature, unless the customer is also subscribed to the Call Forward Additional Paths feature, in which instance one call path per Call Forward Additional Path feature subscribed to will be provided. When the Customer’s designated forward-to number is not in the Customer’s local or expanded local calling area, the use of multiple paths for the completion of simultaneous toll calls may be subject to restrictions or prohibitions imposed by the Customer’s Presubscribed Interexchange Carrier.

▲ Central Telephone Company of Texas dba CenturyLink concurs in the regulations governing this (C) service.

ISSUED: November 5, 2009 EFFECTIVE: November 15, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 5

CENTRAL OFFICE SERVICES AND FEATURES

III. CUSTOM CALLING FEATURES AND SERVICES (Continued)

A. Custom calling features are optional telephone services... (Continued)

3. Call Forward Features ▲ (Continued)

Call Forward Features shall not be used to extend calls on a planned and continuing basis to intentionally avoid the payment in whole or in part, of usage charges that would regularly be applicable between the station originating the call and the station to which the call is ultimately transferred. If the Company determines that Call Forward Features are being used in manner not consistent with the intent of the service or in any other way violates the restrictions of the service, the Subscriber will be determined ineligible for the service and the service will be removed from the customer’s account.

a. Call Forwarding

This feature permits the manual forwarding of incoming calls to another telephone number. When activated, all calls will forward; calls cannot be answered from a line with Call Forwarding activated. Call Forwarding overrides Call Forward No Answer and Call Forward Busy, but those features resume functionality when Call Forwarding is deactivated.

1) Call Forwarding (FCF1FLC) – Provides a customer the capability to control activation/deactivation and the forward-to number of the service by using dialing tones.

▲ Central Telephone Company of Texas dba Embarq concurs in the regulations governing this service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18 First Revised Sheet No. 6 Cancels Original Sheet No. 6

CENTRAL OFFICE SERVICES AND FEATURES

III. CUSTOM CALLING FEATURES AND SERVICES (Continued)

A. Custom calling features are optional telephone services ... (Continued)

3. Call Forward Features ▲ (Continued)

b. Call Forward No Answer

This feature permits the automatic forwarding of an incoming call to another telephone number when the called telephone remains unanswered for a predetermined number of rings, usually four or five.

Where facilities are available, this feature also includes Call Forwarding of Call Waiting when the customer is also subscribed to Call Waiting or Enhanced Call Waiting. Call Forwarding of Call Waiting forwards unanswered waiting calls to a customer-designated telephone number using Call Waiting and Call Forward No Answer. An incoming call to a busy line first receives a Call Waiting tone. If the call is not answered within a set period of time, the incoming call is forwarded to a customer-designated telephone number.

1) Call Forward No Answer-Fixed (FCD1FLC) – This feature is activated and the customer selected forward-to number is preprogrammed by the Company at the time service is established and can only be changed via service order.

2) Call Forward No Answer-Customer Programmable (FCD1FLC PRG) – Provides a customer the capability to control activation/deactivation and the forward-to number of the service by using dialing tones.

(D)

▲ Central Telephone Company of Texas dba Embarq concurs in the regulations governing this service.

ISSUED: November 28, 2007 EFFECTIVE: December 8, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18 Second Revised Sheet No. 7 Cancels First Revised Sheet No. 7

CENTRAL OFFICE SERVICES AND FEATURES

III. CUSTOM CALLING FEATURES AND SERVICES (Continued)

A. Custom calling features are optional telephone services ... (Continued)

3. Call Forward Features ▲ (Continued)

c. Call Forward Busy

This feature permits the automatic forwarding of an incoming call to another telephone number when the called telephone is already in use. Call Forward Busy shall not be used by business customers to extend calls on a planned (C) and continuing basis to intentionally avoid the payment of Rotary Line/Hunting Service. Residence customers may utilize Call Forward Busy in lieu of (C) Rotary Hunting Line Service for up to and including five lines. Call (C) Forward Busy-Customer Programmable and Call Forward Busy-Customer Controlled are not available to customers with multiple lines at the same premises.

1) Call Forward Busy-Fixed (FCB1FLC) – This feature is activated and the customer selected forward-to number is preprogrammed by the Company at the time service is established and can only be changed via service order.

2) Call Forward Busy-Customer Programmable (FCB1FLC PRG) – Provides a customer the capability to control activation/deactivation and the forward-to number of the service by using dialing tones.

▲ Central Telephone Company of Texas dba Embarq concurs in the regulations governing this service.

ISSUED: January 30, 2009 EFFECTIVE: March 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18 First Revised Sheet No. 8 Cancels Original Sheet No. 8

CENTRAL OFFICE SERVICES AND FEATURES

III. CUSTOM CALLING FEATURES AND SERVICES (Continued)

A. Custom calling features are optional telephone services ... (Continued)

3. Call Forward Features ▲ (Continued)

d. Call Forward Additional Paths (FCF1FLC PTH)

Business customers who subscribe to Call Forward Fixed, Call Forward No Answer-Fixed, or Call Forward Busy-Fixed may also subscribe to the Call (C) Forward Additional Paths feature. This feature is not available with Call Forward Features that allow customers to remotely change the forward-to telephone number. Call Forward Additional Paths allows a business Call Forwarding subscriber the ability to specify the number of simultaneous calls that will be forwarded to the forward-to telephone number. Regulations for Call Forward features are also applicable for each Call Forward Additional Path.

1) The forward-to telephone number must be a domestic telephone number.

2) The Call Forward Additional Paths customer must subscribe to sufficient paths to adequately handle incoming calls without impairing any service offered by the Company.

3) The number of paths may not exceed the terminating capability of the forward-to telephone number. In no case, shall the number of additional paths exceed 99.

4) Customers with a single (non-rotary) exchange line/trunk or a rotary (hunting) arrangement of 10 or less lines/trunks may purchase up to 10 additional paths.

5) For customers with a rotary hunting arrangement of more than 10 lines/trunks, the number of additional paths cannot exceed the number of lines/trunks in the forwarding arrangement.

6) The applicable Service Connection Charges will be charged when the number of paths is changed or when the forward-to telephone number is changed.

▲ Central Telephone Company of Texas dba Embarq concurs in the regulations governing this service.

ISSUED: November 28, 2007 EFFECTIVE: December 8, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 9

CENTRAL OFFICE SERVICES AND FEATURES

III. CUSTOM CALLING FEATURES AND SERVICES (Continued)

A. Custom calling features are optional telephone services ... (Continued)

4. Three-Way Calling - enables a customer to add a third party to an existing call without operator assistance, thereby establishing a three - way conversation. Transmission levels may vary because of distances and routing necessary, so normal transmission standards may not be met. This feature is available on a per usage basis subject to technical limitations.

5. Speed Calling - 8 - enables a customer to place calls to other telephone numbers by dialing a one or two digit code rather than the complete telephone number. The 8 code capacity or 30 code capacity may be provided. The speed calling customer may change his list of numbers at his discretion.

6. Personal Alert Line (PAL) - provides direct routing of a call to a predetermined telephone number without dialing. When the telephone is placed in an off hook condition and after a set time interval, the call is automatically routed to a predetermined number. The time interval will be pre-determined and programmed by the Telephone Company. During the time interval, the telephone can be used to make regular dialed calls if desired.

The customer ordering the PAL feature is responsible for obtaining the required authorization from the customer whose line is designated as the terminating number. PAL calls shall not be terminated on Police, Fire or other emergency numbers

7. SignalRing - provides for a second directory number to be added to an existing telephone line. Each number will have a distinctive coded ring. Directory listing charges as specified in Section 5 of this tariff apply for the second number.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 10

CENTRAL OFFICE SERVICES AND FEATURES

III. CUSTOM CALLING FEATURES AND SERVICES (Continued)

A. Custom calling features are optional telephone services ... (Continued)

8. Intercom Service - allows customers with an individual residence or business line to use their line to provide an intercom system between their telephones. This is accomplished by the customer dialing his own number, receiving a recording and hanging up. All telephones at that number will then ring and when one of the other telephones goes off-hook, the ringing will stop and the initiator of the call can go off- hook and engage in conversation. This service is offered in exchanges where the central office equipment is designed to provide this service.

9. Three-Way Calling with Transfer

a. This feature allows a user to hold an in-progress call and complete a second call while maintaining privacy from the first call, or to add on the previously held call for a three-way conference. Incoming calls may be transferred to another access arrangement on an inter- or intra-switch basis, except as specified in Section 18. III.A.9.3) following.

The subscriber can transfer the caller to the secondary destination in one of three ways:

1) Blind Transfer

By placing the original caller on hold, dialing the secondary destination, and upon hearing the ring, hang up, resulting in the original caller being connected to the secondary destination.

2) Announced Transfer

By placing the original caller on hold, dialing the secondary destination, and upon the party at the secondary destination answering the phone, the subscriber announces the transfer of the call (on hold at the time) and hangs up (on hook), resulting in the original caller being connected to the secondary destination.

3) Three-Way Conferencing with Option to Transfer

By placing the original caller on hold, dialing the secondary destination, and upon the party at the secondary destination answering the phone, taking the original caller off-hold; resulting in a three-way connection. The subscriber can then hang up; resulting in the original caller continuing to be connected to the caller at the secondary destination.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18 Third Revised Sheet No. 11 Cancels Second Revised Sheet No. 11

CENTRAL OFFICE SERVICES AND FEATURES

III. CUSTOM CALLING FEATURES AND SERVICES (Continued)

A. Custom calling features are optional telephone services ... (Continued)

8. Three Way Calling with Transfer (Continued)

b. The subscriber of Three-Way Calling with Transfer can receive or originate the initial call. Three-Way Calling with Transfer allows the subscriber to originate both legs of a three-way connection and subsequently disconnect, enabling the other parties to remain connected.

c. Where the subscriber originates both legs of a three-way call, those legs will remain bridged together when the subscriber goes on hook when at least one of the legs is a call for which both the originating and terminating points are served by the same switch. Where the subscriber originates two inter-switch legs of a three-way call, both legs remain bridged when the subscriber goes on hook where the serving switch is not a 5ESS switch. For such calls in a 5ESS switch, both inter-switch legs are disconnected when the subscriber goes on hook.

d. This feature shall not be used to extend calls on a planned and continuing basis to intentionally avoid the payment in whole or in part of message charges, toll or otherwise, that would regularly be applicable between the stations bridged together by the subscriber.

e. The Three-Way Calling with Transfer subscriber is responsible for all applicable local and toll usage charges for calls originated by the subscriber, including connections which continue after the subscriber exits the call. The use of this feature by the subscriber to complete simultaneous outgoing calls may be subject to restrictions or prohibitions imposed by the Customer’s Presubscribed Interexchange Carrier, if the calls are not in the Customer’s local or expanded local calling area.

8. Outbound Call Block Feature (N)

a. This feature blocks all outbound dialing with the exception of abbreviated dialing for 911 (Emergency Reporting Services) and 711 (Service for Telecommunications Relay Services). In addition, all pay-per-use features are blocked.

b. All other Custom Calling Features and ExpressTouch features are prohibited with the use of this feature and lines equipped with this feature will not have a directory listing.

c. This feature is subject to the availability of facilities and is only available to one-party residence and one-party business customers. (N)

(M) (M)

(M) Material previously appearing on this sheet now appears on Section 18, Original Sheet No. 11.1

ISSUED: May 26, 2009 EFFECTIVE: June 5, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 11.1

CENTRAL OFFICE SERVICES AND FEATURES

III. CUSTOM CALLING FEATURES AND SERVICES (Continued)

B. Custom Calling Features will be provided in connection with individual and multi-line (M) residence and business access lines. Excluded from custom calling features are ISDN-BRI, ISDN-PRI, party line, PBX, Centrex and Pay telephones.

C. Other facilities requested by customers and not detrimental to this service or other services of the Telephone Company will be furnished in accordance with regulations and at the rates specified in the applicable sections of this tariff.

D. Custom Calling Features will be offered at the following rates only in exchanges equipped with processor controlled switching equipment where, in the judgment of the Telephone Company, an adequate market exists to support the associated costs, including a reasonable return on the required investment. (M)

(M) Material now appearing on this sheet previously appeared on Section 18, Second Revised Sheet No. 11

ISSUED: May 26, 2009 EFFECTIVE: June 5, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 9th Revised Sheet No. 12 Cancels 8th Revised Sheet No. 12

CENTRAL OFFICE SERVICES AND FEATURES

III. CUSTOM CALLING FEATURES AND SERVICES (Continued)

E. The following rates and charges apply in all exchanges and are in addition to the established rates and charges for the services with which these features are associated.

Monthly rates apply to all services with the exception of Usage Sensitive Three - Way Calling, which is billed per successful activation.

Service Connection Charges do not apply when Custom Calling Features are installed.

Monthly Rate Residence Business

Call Waiting, per line (2) $6.00 $6.00

Enhanced Call Waiting, per line 6.00 6.00

Call Forwarding, per line Call Forwarding 5.00 5.00 Call Forward No Answer - Fixed 3.00 3.00 (I) Call Forward No Answer - Customer Programmable 3.00 3.00 Call Forward Busy - Fixed 3.00 5.00 Call Forward Busy - Customer Programmable 3.00 3.00 (I) Call Forward Additional Paths (Per Path) N/A 3.00 Call Forward Busy or No Answer (Enhanced Call Forwarding) 5.00 6.00

Three - Way Calling, Per line-monthly 5.00 5.00 Usage Sensitive, per activation 1.50 1.50

Speed Calling: 8 Code, per line 5.00 5.00

Speed Calling: 30 Code, per line (2) 6.00 6.00

Personal Alert Line, per line (1) 5.00 5.00 (I)

SignalRing, per line 6.00 6.00 (I)

Intercom Service, per line (1) 5.00 5.00

Three-Way Calling with Transfer N/A 5.00

Outbound Call Block Feature 5.00 5.00

(1) Grandfathered service limited to existing customers at existing locations as of October 30, 2009.

(2) Grandfathered service limited to existing customers at existing locations as of November 15, 2009.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 4th Revised Sheet No. 13 Cancels 3rd Revised Sheet No. 13

CENTRAL OFFICE SERVICES AND FEATURES

III. CUSTOM CALLING FEATURES AND SERVICES (Continued)

F. Network Services Packages

The following Network Services Packages are offerings that combine certain Custom Calling Features and Services options into packages at rates that provide a monthly savings over the rates that would apply if the services were purchased individually as shown in this section of the tariff.

No substitutions will be permitted to the services available in each package. Should a customer no longer want a certain service contained in a subscribed-to package, the customer may choose another package which includes the services desired or select the individual services as provided for in this section of the tariff.

Monthly Rate Residence Business

In Touch with Call Forwarding (2) $13.00 $11.00 (I) Enhanced Call Waiting, 3-Way Calling (monthly), Call Forwarding, Call Forward Busy – Fixed and Call Forward No Answer – Fixed

In Touch with SignalRing (1) 11.00 11.00 (I) Enhanced Call Waiting, 3-Way Calling (monthly), SignalRing, Call Forward Busy – Fixed and Call Forward No Answer - Fixed

IV. AUTOMATIC RING-DOWN SERVICE

A. This service is provided by the Telephone Company to customers who require communications between two points but because of a need for speed or convenience do not wish to perform the dialing function in order to signal between points. The service consists of a dedicated facility, equipped with automatic switching and signaling equipment.

(1) Grandfathered service limited to existing customers at existing locations as of December 1, 2000.

(2) Grandfathered service limited to existing customers at existing locations as of November 15, 2009.

ISSUED: July 16, 2019 EFFECTIVE: September 6, 2019 TX 19-09

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 14

CENTRAL OFFICE SERVICES AND FEATURES

IV. AUTOMATIC RING-DOWN SERVICE (Continued)

B. Rates and Charges – Automatic Ring-Down Service

Installation Rate Charges(1)

1. Automatic Switching and Signaling Equipment $5.50 $5.00

2. Dedicated Line which connects ìntra-exchange points on service measured air-line between points of termination per 1/4 mile. (4 quarter minimum) See Sec. 20 Par. XII.

V. SUBSCRIBER TRANSFER SERVICE

A. The Subscriber Transfer Service allows a customer to arrange for calls to his number to be automatically transferred to another number served by the same central office. The operation of a switch at the customer's telephone controls this service. This service is limited to one-party service only.

B. Rates and Charges – Subscriber Transfer Service

Installation Rate Charges

1. Subscriber Transfer Service per switch $3.00 $10.00

2. Subscriber Transfer Service in Electronic Central Offices Arranged for Custom Calling Features, (No Switch Required) 2.00 10.00

(1) Installation charges are in addition to applicable service connection charges. (See Section 17 of the General Exchange Tariff).

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 1st Revised Sheet No. 15 Cancels Original Sheet No. 15

CENTRAL OFFICE SERVICE AND FEATURES

VI. DIRECT INWARD DIALING (DID) SERVICE ▲

DID subscribers may need to purchase additional features or services to comply with the (N) dispatchable location provisions of RAY BAUM’s Act, as described in Section 7.XII.K.2. (N)

A. General

1. DID service permits calls incoming to Customer Premises Equipment requiring outpulsing of digits from the network to reach a specific station line without the assistance of an attendant. DID service is provided subject to the availability of facilities and telephone numbers and other conditions as specified in Section 7, General Rules and Regulations and Section 12, Connection with Certain Facilities of Customer, of this tariff.

2. The rates specified herein are in addition to the rates shown elsewhere in the tariff and other tariffs for the services with which this offering is associated (e.g., central office PBX Trunks, Digital Trunking Service, ISDN-PRI Service, etc.).

3. DID service includes central office switching equipment necessary for in-dialing from the network directly to stations associated with customer premises switching equipment. Subscribers to DID service will be required to maintain an adequate number of trunks as determined by the Company in order to provide quality grade of service and prevent network degradation.

4. The service must be provided on all lines in a trunk group arranged for inward service. Where DID is required on more than one group of trunks or central office lines, each such group shall be considered as a separate DID service.

5. The assignment of telephone numbers and the sequence of the numbers assigned to a DID service is made at the discretion of the Company. Where the equipment configuration requires the assignment of blocks of telephone numbers or where the customer requests additional blocks of telephone numbers held in reserve for future use, rates and charges as shown in Section 18.VI.B.1.a.2) are applicable for each unused block of telephone numbers.

6. The rates herein contemplate the use of standard Company equipment and serving arrangements. When equipment or service of a special type arrangement is requested and provided, rates and charges are based on costs involved to meet the individual requirements of each case.

7. Operational characteristics of interface signals between the Company-provided facilities and the customer-provided switching equipment must conform to the rules and regulations the Company considers necessary to maintain proper standards of service as specified in other sections of this tariff.

8. The Company shall not be responsible to the customer or authorized user if changes in protection criteria or in any of the facilities, operations, or procedures of the Company render any of the facilities provided by a customer or authorized user obsolete or require modification or alteration of such equipment or system or otherwise affect its use or performance.

▲ Central Telephone Company of Texas dba CenturyLink concurs with the rates, terms and conditions as (T) specified in this tariff.

ISSUED: April 9, 2021 EFFECTIVE: June 1, 2021 TX2021-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 16

CENTRAL OFFICE SERVICE AND FEATURES

VI. DIRECT INWARD DIALING (DID) SERVICE (Continued)

A. General (Continued)

9. Directory listings will be provided in accordance with the regulations of Section 5, Directory Services, of this tariff for PBX Trunks. DID numbers furnished herein are not entitled to directory listings without charge.

10. All switching systems provided this service must be arranged to provide for the intercepting of reserved, idle and/or unassigned station numbers.

11. At the customer’s request and at the discretion of the Company, subject to operating limits and the availability of facilities, DID service may be provided outside the customer’s normal serving central office. Where a DID trunk group is served from a central office other than the customer’s normal serving central office, the appropriate mileage rates for Foreign Exchange service, per trunk will apply.

12. In addition to the rates and charges specified in Section 18.VI.B., appropriate Service Charges are applicable to the establishment or rearrangement of trunks and numbers in connection with providing DID service.

13. Installation charges for DID central office switching equipment are not applicable if the customer presently subscribes to DID service and changes the type of customer premises switching equipment and changes to another type of customer premises switching equipment with DID service. The following provisions apply:

a. The customer must maintain at least the same level of DID service requirements.

b. The replacing customer premises equipment must be served by the same central office as the existing customer premises equipment.

c. Central office switching equipment additions or modifications must not be required in order to provide DID service to the replacing customer premises switching equipment.

d. Rates and charges are applicable to additional DID service requirements which exceed the customer’s existing level of DID arrangements.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 17

CENTRAL OFFICE SERVICE AND FEATURES

VI. DIRECT INWARD DIALING (DID) SERVICE (Continued)

A. General (Continued)

14. The removal of one or more numbers from a DID number block, for use by the same customer, is offered subject to the availability of facilities at the charge specified in 18.VI.B.1.a.3) following. In such cases, the customer shall continue to pay the appropriate rate for the original block of DID numbers.

The re-instatement of one or more numbers to a DID number block, for use by the customer is offered, subject to the availability of facilities, at the charge specified in 18.VI.B.1.a.4) following.

15. A DID customer may reuse his DID numbers for non-DID purposes when the customer’s DID service is disconnected. Rates and charges will be determined by the appropriate tariffs for the new services.

16. In the cases where a customer converts a larger block of numbers into one or more smaller blocks of numbers, or converts one or more smaller blocks of numbers into a larger block of numbers, it will constitute a disconnection and the appropriate installation charges will apply to establish the new number block(s). However, the customer may be required to accept different numbers from those in the original number block(s).

17. Special steps are required for PBX customers to have 9-1-1 service features consistent with those provided to other end users in the same 9-1-1 service area. Automatic Number Identification, Automatic Location Identification and/or Selective Routing are only available through coordination with the governmental agency responsible for 9-1-1 service within the area served by the PBX in accordance with the provisions of Section 11, FCC Designated N11 Services, of this tariff.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 18

CENTRAL OFFICE SERVICE AND FEATURES

VI. DIRECT INWARD DIALING (DID) SERVICE (Continued)

B. Rates and Charges

1. Central Office Components

a. Direct Inward Dialing (DID) Service(1):

Installation Monthly Charge Rate

1) Establish DID trunk group $100.00 $0.00

2) Blocks of Numbers a) Individual Numbers, per number(2) 10.00 1.50 b) Block of 20 DID numbers 10.00 15.00 c) Block of 100 DID numbers 10.00 65.00 d) Block of 200 or more DID numbers ICB ICB

3) Removal of a number from DID number block, per Number per order 25.00 0.00

4) Re-instatement of a number to a DID number block, per Number per order 25.00 0.00

(1) In addition to the rates and charges for the DID service, rates and charges for PBX Trunks as specified in Section A of the United Telephone Company of Texas, Inc., Local Exchange Tariff apply as appropriate.

(2) Individual numbers apply to ISDN-PRI Service only.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 19

CENTRAL OFFICE SERVICE AND FEATURES

VII. REMOTE CALL FORWARDING (RCF)

A. General Regulations

1. Remote Call Forwarding (RCF) provides for calls placed to a RCF customer's telephone number to be automatically forwarded to another number, designated by the RCF customer, in a different exchange. The forwarded to number is programmed in the Central Office by the Company. The following restrictions shall apply.

a. RCF service is not offered where the terminating number is a coin telephone.

b. The Telephone Company will not provide identification of the originating telephone number to the remote call forwarding customer.

c. Transmission characteristics may vary depending on the distance and routing necessary to complete the remotely forwarded call, therefore, voice grade transmission quality cannot be guaranteed.

d. RCF service is not represented as suitable for satisfactory transmission of data.

e. RCF is provided on the condition that the customer subscribe to sufficient RCF features and facilities to adequately handle calls to the RCF customer without interfering with or impairing any other services offered by the Telephone Company.

f. When the call forwarding number is to be located in a multi-office exchange, the Company will determine the serving office.

g. Remote Call Forward cannot be used to expand the local calling scope beyond that available to a customer's premise.

h. Remote Call Forwarding will be offered only in exchanges equipped with processor controlled switching where, in the judgment of the Telephone Company, an adequate market exists to support the associated costs, including a reasonable return on the required investment.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 2nd Revised Sheet No. 20 Cancels 1st Revised Sheet No. 20

CENTRAL OFFICE SERVICE AND FEATURES

VII. REMOTE CALL FORWARDING (RCF) (Continued)

A. General Regulations (Continued)

2. One listing in the alphabetical section of the directory covering the exchange in which the call forwarding Central Office is located is provided without additional charge.

3. The message charges applicable to remotely forwarded calls shall be comprised of two separate charges; (a) a charge for that portion of the call from the originating location to the call forwarding location, and (b) a charge for that portion of the call from the call forwarding location to the terminating number.

The originating party is responsible for sent paid message charges, if applicable, from the originating number to the call forwarding location; the RCF customer is responsible for the message charges from the call forwarding location to the terminating number. In the case of a collect call, the RCF customer will be responsible for charges applicable to both portions of the call if the call is accepted. If the collect call is not accepted at the terminating number, the RCF will be responsible for that portion of the message from the RCF location to the terminating number.

The respective charge for each such portion shall be the charge specified in this tariff or in tariffs in which the Company concurs for the type of call involved.

B. Rates and Charges

The following rates shall apply for Remove Call Forwarding:

Monthly Rate(1) SAE Residence and/or Installation Code Business Charge

Applicable Service Remote Control Connection Forwarding FDT1RLC $22.00 Charges (I) Per RCF Access As Set Forth In Section 17 Of This Tariff

(1) One party access line rate does not apply to RCF.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 21

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE

A. General

ExpressTouch is the Company's registered service mark for a set of advanced call management features. These features are commonly known as Custom Local Area Signaling Services (CLASS) and, in general, will only be offered on one-party service and will not be activated on multi-party lines, certain FX lines, Pay Telephone Services. (Per Call Blocking, however, is available on Pay Telephone Services. Certain ExpressTouch features may be offered in conjunction with certain Key and PBX trunks and Centrex services and consist of one or more features.

B. Rules and Regulations

1. ExpressTouch features can be provided on a stand alone basis or may be enhanced by use with Custom Calling features as described in this section of the tariff.

2. ExpressTouch features are provided from specially equipped Telephone Company Central Offices and enable customers to access various features by dialing a specific code on either a rotary-dial or Touch-Tone calling basis.

3. The customer of record will be responsible for payment of all the charges associated with ExpressTouch as described in Section VIII.F following. The customer of record will be charged for all features activated on their service and charged the applicable monthly subscription rate for each line on which an ExpressTouch feature is provided. Return Call and Repeat Dialing may be used on a usage sensitive per activation basis. Customers who use Return Call and Repeat Dialing on a usage sensitive basis will only be subject to the appropriate activation charge per occurrence.

4. ExpressTouch features are available to customers who have rotary or Touch-Tone service for calls within the ExpressTouch Calling Service area. Customers with rotary service can access ExpressTouch features by dialing "11" instead of "*" plus the activation code.

5. An ExpressTouch customer may employ available ExpressTouch features only under either of the following conditions:

- When both the ExpressTouch customer and the other party involved in the call are served from the same central office, even if the other party does not subscribe to an ExpressTouch feature;

- When both the ExpressTouch customer and the other party involved in the call are served from different central offices which are linked by facilities that can handle the delivery of the calling name and/or number, even if the other party does not subscribe to ExpressTouch.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 22

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

B. Rules and Regulations (Continued)

6. Call Trace is available for all lines, except for Pay Telephone Service and multi-party lines. Call Trace activation charges apply as shown in Section VIII. F for each successful trace the customer initiates. The results of a trace will be held for a minimum of 30 days and will only be provided to legal authorities with proper authorization from the customer. The Telephone Company will not be liable for damages if, for any reason, a customer initiated trace is not successful.

7. The liability of the Telephone Company is as specified in Sections 5 and 7 of this tariff. In addition to the provisions of the General Exchange Tariff, the calling party and customer relieves the Company against any and all claims for damages caused or claimed to have been caused, directly or indirectly, by the transmission to a Caller ID customer of a telephone number which the calling party has requested to be omitted from the telephone directory or has requested not to be disclosed to any person.

8. ExpressTouch features will only be offered with one-party service, compatible Key/PBX equipment and Centrex service. ExpressTouch features cannot be activated for multi-party lines, certain FX lines ISDN-BRI or ISDN-PRI, and except Per Call Blocking, for Pay Telephone Services.

ExpressTouch features are offered on a per line basis. For Rotary Hunting Line Service, the selective call features must be activated for each line in the rotary hunt group.

9. ExpressTouch features will only be offered in exchanges which meet the necessary technical specifications.

10. Caller ID Blocking - Per Call Blocking is available, at all times, on all lines where technically feasible, without subscribing to ExpressTouch features.

Caller ID Blocking - Per Line Blocking is available to all customers who demonstrate in writing a compelling need.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 23

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

B. Rules and Regulations (Continued)

11. Telephone numbers transmitted via Caller ID may not be sold or given to another party without the caller's consent. Caller ID information may only be used for: a) routing or completion of calls, b) billing of calls, c) account management purposes, d) services directly related to the call or transaction, e) verification of calling party identity. Caller ID customers failing to comply with any of these conditions may be subject to termination of these services.

12. Calls that reach a recording activated by Anonymous Call Rejection will be treated as calls that are not answered.

13. The calling name and/or number will be displayed for calls made from another central office only if it is linked by the appropriate facilities and/or the name and/or number transmission occurs.

C. Feature Interactions

1. Caller ID information will not be displayed under the following conditions:

a. If the called party is off-hook.

b. If the called party answers during the first ring interval.

2. Caller ID is not available with services based on distinctive ringing which have a silent interval length insufficient for CPN transmission.

3. Identification of specific stations or extensions served by customer premise equipment is not possible. The main directory number associated with the customer premise equipment will be displayed.

4. Caller ID will be transmitted and displayed for calls made from another central office only if it is linked by appropriate facilities.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 24

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

C. Feature Interactions (Continued)

5. When Caller ID service is provided in connection with line side PBX trunk connections, the telephone company makes no guarantee that the calling party information will be delivered in a manner such that the customer's equipment will be able to transmit that information to the stations or extensions served by the customer premise equipment. Customers subscribing to ExpressTouch services in conjunction with line-side PBX connections are responsible for the provision of compatible customer premise equipment which will receive, translate, display and/or store the transmitted data. The installation, repair, and technical capability of that equipment to function in conjunction with Caller ID services on line-side PBX connections will be the responsibility of the customer. The telephone company assumes no liability and will be held harmless for any damage to the customer's equipment due solely to the transmission of the calling party information or for any incompatibility of the customer's equipment to perform satisfactorily with the information transmitted.

D. State and Local Government Undercover Operations Special Service Arrangements

1. The parameters of the special service arrangement are as follows: State and Local government entities authorized to conduct undercover or surreptitious civil or criminal investigations, where the existence or conduct of an investigation or the identity of the investigator may be disclosed or compromised by Calling Number Delivery Service, may be eligible to receive at no charge, for a period not to exceed 90 calendar days, Key System Trunk local exchange service access lines which allow for multi-line hunting (as offered in this local exchange tariff) and Pushbutton Dialing Service; both services to be used only in connection with a service arrangement that will mask the identity of the calling number. In addition, any nonrecurring charges and the FCC Subscriber Line charge associated with these access lines will be waived. All monthly and nonrecurring charges will begin to accrue for each access line on the 91st calendar in-service day.

2. The services provided under the special service arrangement will be offered only in exchanges where Caller ID Service, as furnished by the telephone company, is available.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 25

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

D. State and Local Government Undercover Operations … (Continued)

3. Each State or Local government entity must request and receive sponsorship, on an individual access line basis, from the Texas Attorney General for access or subscription to this special service arrangement. The special service arrangement must be requested by the Texas Attorney General on behalf of any State or Local government entity which, in the judgment of the Texas Attorney General, is authorized to conduct undercover or surreptitious civil or criminal investigations.

4. For the purpose of requesting the special service arrangement, the State Attorney General will designate a Representative that will act as liaison between all State and Local government agencies and the telephone company. The telephone company will also designate a representative to coordinate with the State Attorney General representative. In addition, the telephone company will establish internal procedures to administer requests for the special service arrangement.

5. The total number of in-service local exchange access lines provided for under the special arrangement for use by all State and/or Local government entities in the conduct of undercover or surreptitious civil or criminal investigations cannot exceed 10 at any given time.

6. The Texas Attorney General will be responsible for ensuring that the services provided at no charge under the special service arrangement are to be used only by authorized representative(s) of State and/or Local government entities and only in the conduct of undercover or surreptitious civil or criminal investigations.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 26

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

E. Description of Services

1. Return Call

Return Call allows the customer to call the telephone number associated with their last incoming call whether or not the call was answered or the telephone number is known by the customer. To operate Return Call, the customer must enter the activation code *69 (1169 on rotary phones). If the called line is available, the call is immediately completed. If the called line is not available, a queuing process, which may last up to thirty minutes, takes place. When both lines are available, the customer receives a distinctive ring that the network is ready to place the call. When the customer answers the telephone, the call is automatically placed.

Return Call cannot return a call to the telephone number of the last incoming call if the telephone number was originally blocked by the calling party. This feature on a per usage basis is not compatible with Warm Line Services.

2. Call Trace

Call Trace enables the customer to initiate an automatic trace of the last incoming call received, regardless of the time lapse since that call, providing there have been no intervening calls. To initiate the trace, the customer must dial the activation code *57 (1157 on rotary phones), then dial a "1" to confirm the trace. Upon activation by the customer, the network automatically sends a message to the Telephone Company indicating the calling number, the time the call was received, and the time the trace was activated. The customer will hear a confirmation announcement acknowledging whether the trace was successful. The customer is not provided the traced number, and must contact the law enforcement agency for further action. In situations where the Call Trace functionality is activated by a subscriber, information pertaining to non- published numbers will be provided to the authorized law enforcement agency upon request of the agency.

If the customer receives another call before activating the trace, or if the Call Waiting feature is activated prior to activating the trace, the Call Trace feature will not record the correct number.

Call Trace will only trace those calls that originate from a location served by the CLASS network.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 27

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

E. Description of Services (Continued)

3. Caller ID

Caller ID allows the customer to view the telephone number of an incoming call before answering. During the time that the incoming call is placed, the calling number is forwarded from the central office to compatible auxiliary equipment between the first and second ring.

The calling telephone number is not available from calls made from most cellular phones or units and certain interexchange carrier calls. The calling number is also not available when incoming calls have been handled by an operator or charged to credit cards. The number delivered for calls originated from a Key System or PBX will display the main telephone number only. If the caller's number is not part of the CLASS network, is a multi-party line, or is blocked, the number will not be displayed.

Caller ID customers who do not wish to receive calls from blocked numbers will have the feature Anonymous Call Rejection active on the line. To activate Anonymous Call Rejection the customer dials *77 (1177 on rotary phones). While the feature is activated, incoming calls with blocked numbers are routed to an announcement in the central office. The code to deactivate this feature is *87 (1187 on rotary phones).

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 28

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

E. Description of Services (Continued)

4. Caller ID with Name

Caller ID with Name functions in the same manner as Caller ID but also includes the delivery of a calling party's name. The name and number are displayed on compatible auxiliary equipment.

The name displayed shall be the name associated with the calling telephone number as shown on the Company's records. The Company, at its discretion, may abbreviate or limit that name for display purposes. The Company does not assure name accuracy, and it shall not be liable to any party for errors, omissions, or mistakes. The Company's sole and only obligation shall be to correct errors in names when notified in writing of such errors.

Caller ID with Name customers who do not wish to receive calls from blocked numbers will have the feature Anonymous Call Rejection active on the line. To activate Anonymous Call Rejection the customer dials *77 (1177 on rotary phones). The code to deactivate is *87 (1187 on rotary phones). While the feature is activated, incoming calls with blocked numbers are routed to an announcement in the central office.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 29

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

E. Description of Services (Continued)

5. Caller ID Blocking

Caller ID Blocking allows the customer the ability to prevent the delivery of their name and/or telephone number on a per call basis (per call blocking) or per line basis (per line blocking). When Caller ID Blocking is activated, the name and/or telephone number will not be transmitted to the called party. Called parties with Caller ID will receive an "anonymous call" indicator. This "anonymous call" indicator notifies the called party that the calling party has elected to block the delivery of the telephone number.

Per call blocking will block the delivery of the customer's name and/or telephone number for one call only and may be activated by pressing *67 (1167 on a rotary telephone) immediately prior to placing a call. The activation code will initiate per call blocking, which is available at no charge.

Per line blocking will automatically block delivery of the customer's name and/or telephone number on all calls. There is no activation code required for per line blocking. Per line blocking may be unblocked on a per call basis by dialing a deactivation code *82 (1182 on rotary phones) prior to placing a call.

6. Repeat Dialing

Repeat Dialing allows the customer to automatically redial the last number dialed from the customer's telephone regardless of whether the last number dialed was answered. To operate the Repeat Dialing function, the customer must enter the activation code *66 (1166 on rotary phones). If the called line is available, the call will be placed immediately. Where technically feasible, when a caller receives a busy condition, the service will automatically play an announcement offering the caller the option of having the service complete the call when the called line becomes available by entering the activation code "7". If the redialed line is busy, the network will queue the request for thirty minutes and process the call when both the called and calling party lines are idle. When the call can be completed, a distinctive ring will be provided to the caller's line to alert the customer that the requested callback is ready. When the customer answers the telephone, the call is automatically placed.

For FAX machines, computer modems, or any telephony devices that require busy tone recognition, the caller may dial *03 (1103 on rotary phones) to cancel the announcement offering on a particular call. Normal busy tones will be heard if a busy condition is encountered. In addition, blocking of Repeat Dialing, including the announcement offering, on a per line basis is available free of charge.

This feature cannot be activated for calls originating from a line that is forwarded and is not compatible on a per usage basis with Warm Line Service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 30

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

E. Description of Services (Continued)

7. Anonymous Call Rejection

Anonymous Call Rejection allows customers to automatically reject all calls that have been marked anonymous by the calling party, who has activated the Caller ID blocking feature. When Anonymous Call Rejection is active, the called party receives no alerting (ringing) for a call that has been rejected. The call is routed to a denial announcement and subsequently terminated. Customers subscribing to Caller ID will automatically have this feature; however, Anonymous Call Rejection may be purchased as a separate feature.

8. Selective Call Forwarding

Selective Call Forwarding allows the customer to forward selected calls to another telephone number within the exchange or on the long distance telecommunications network where facilities permit. Selective Call Forwarding cannot be used to expand the local calling scope beyond that available to a customer's premises. A screening list of up to 12 telephone numbers is created by the customer and placed in the network memory via an interactive dialing sequence by entering an activation code *63 (1163 on rotary phones). This list can only be created from ExpressTouch Service serving area telephone numbers. Only calls from those telephone numbers in the screening list will be forwarded to the designated telephone number even if the number being screened was blocked. Customers with this feature are responsible for the payment of charges for each call between the Selective Call Forwarding telephone and the telephone to which the call is being forwarded.

9. Selective Call Rejection

Selective Call Rejection provides the customer the ability to prevent incoming calls from certain telephone numbers even if the number was blocked. Through an interactive dialing sequence, initialized by entering an activation code *60 (1160 on rotary phones), the customer creates a screening list of up to 12 telephone numbers in the ExpressTouch network. When a call is placed to the customer's number from a number on the screening list, the calling party receives an announcement indicating that the call cannot be completed to the called party at this time.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 31

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

E. Description of Services (Continued)

10. Selective Call Ring

Selective Call Ring provides a distinctive ringing pattern to the subscribing customer for specific telephone numbers even if the number was blocked. The customer creates a screening list of up to 12 telephone numbers through an interactive dialing sequence by entering an activation code *61 (1161 on rotary phones). When a call is received from one of the predetermined telephone numbers, the customer is alerted with a distinctive ringing pattern. Calls from telephone numbers not included on the screening list will produce a normal ring.

If the called customer subscribes to Call Waiting, as described in Section 18, and the call arrives while the line is busy, the Call Waiting tone has a distinctive pattern.

11. Selective Call Acceptance

Selective Call Acceptance – an arrangement that allows a subscriber to selectively accept only calls arriving from a list or up to 12 previously identified directory numbers.

A call will only be accepted when it is received from a telephone number that matches one of up to 12 numbers on the Selective Call Acceptance list. Calls from telephone numbers that do not match one of the 12 numbers on the Selective Call Acceptance list will be routed to an announcement stating that the called party does not wish to receive the call. If the incoming call is from a telephone number in a multi-line hunt group, this feature will not work unless the number is the main telephone number in the group, or each terminal has a unique telephone number associated with it within the group.

The Selective Call Acceptance list is created by the Selective Call Acceptance subscriber, through an interactive dialing sequence, and can be altered at the subscriber’s discretion.

This feature can be activated or deactivated at the subscriber’s discretion.

12. Call Waiting ID

Enables the customer to view the calling party's name and telephone number associated with an incoming Call Waiting call, unless the name and telephone number of the calling party is suppressed, either via Per Call or Per Line Blocking. This gives customers the opportunity to identify incoming callers without interrupting their current call, which helps the customer decide whether or not to answer the new call.

Call Waiting ID is available when a customer subscribes to the Essentials package or as a stand-alone feature for residential, business, and Centrex customers.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 8th Revised Sheet No. 32 Cancels 7th Revised Sheet No. 32

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

F. Rates and Charges

1. The following ExpressTouch Service features are available at the following monthly rates for the customer group specified.

2. Service Connection Charges do not apply when ExpressTouch Service features are installed in conjunction with Residence and Business Individual Line Service.

Monthly Rate Centrex/ Residence Business Centrex Service II (3)

a. Return Call $ 5.00 $ 5.00 $ 3.85 FTB1FCC / FTB1FAB (1) Usage Sensitive per activation (2) 1.50 1.50 NA

b. Call Trace, per successful 10.00 (4) 10.00 (4) 10.00 (4) activation FTC1FCC / FTC1FAB (1)

c. Caller ID (includes 10.00 (6) 10.00 (6) 7.70 Anonymous Call Rejection) FTE1FCC (ACR) / FTE1FAB (ACR) (1)

d. Caller ID with Name (includes 10.00 10.00 NA Anonymous Call Rejection) (5) FTK1FCC (ACR)

(1) The Company S&E codes are shown for Residence/Business and Centrex respectively.

(2) Return Call and Repeat Dialing have the subscriber option of monthly subscription or billing on a per activation basis where central office facilities permit.

(3) Centrex rates apply only to customers with 1–200 lines. Features for customers with more than 200 Centrex lines will be priced on an Individual Case Basis. Call Trace, however, will be offered to all Centrex lines at the rate shown. Effective July 1, 2003, Centrex Service is grandfathered. Centrex Service II rates apply only to customers with 1-25 lines. Features for customers with more than 26

Centrex Service II lines may be priced on an Individual Case Basis. Call trace however, will be offered

to all Centrex Service II lines at the rate shown.

(4) Monthly rates apply to all services with the exception of Call Trace, which is billed per successful activation.

(5) Residential customers who purchase the deregulated services LineGuard or Data LineGuard and Home Phone Warranty may purchase Caller ID with Name for a monthly charge of $7.00 This (C) discounted purchase option is grandfathered as of November 13, 2020. (C)

(6) Grandfathered service limited to existing customers at existing locations as of November 15, 2009.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 6th Revised Sheet No. 33 Cancels 5th Revised Sheet No. 33

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

F. Rates and Charges (Continued)

1. The following ExpressTouch … (Continued) Monthly Rate Centrex/ Residence Business Centrex Service II (3)

e. Repeat Dialing $5.00 $5.00 $4.40 FTA1FCC / FTA1FAB (1) Usage Sensitive per activation (2) 1.50 1.50 NA

f. Anonymous Call Rejection 5.00 (4) 5.00 (4) 5.00 FTR1FCC

g. Selective Call Forwarding 5.00 5.00 NA FTG1FCC

h. Selective Call Rejection 5.00 5.00 NA FTH1FCC

i. Selective Call Ring 5.00 5.00 NA FTH1FCC

j. Selective Call Acceptance (5) 5.00 6.00 6.00 (C) FJF1FCC

k. Call Wait ID 5.00 5.00 4.00 FTW1FCC

(1) The Company S&E codes are shown for Residence/Business and Centrex respectively.

(2) Return Call and Repeat Dialing have the subscriber option of monthly subscription or billing on a per activation basis where central office facilities permit.

(4) Grandfathered service limited to existing customers at existing locations as of October 30,-2009.

(5) Grandfathered service limited to lines in service at existing locations as of November 13, (N) 2020.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 6th Revised Sheet No. 34 Cancels 5th Revised Sheet No. 34

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

G. Network Services Packages

Network Services Packages are offerings that combine certain ExpressTouch and Custom Calling Service Options into packages at rates that provide a monthly savings over the rates that would apply if the services were purchased individually.

The ExpressTouch and Custom Calling Services included in the packaged services are also offered on an individual basis as shown in this section of the tariff. All descriptions and regulations for the ExpressTouch and Custom Calling Services are applicable to these packages.

In Touch with Return Call (1) $14.00 $11.00 (I) Enhanced Call Waiting Three-Way Calling Return Call Call Forward Busy - Fixed Call Forward No Answer - Fixed

Call Manager (1) 18.00 15.00 (I) Enhanced Call Waiting Three-Way Calling Call Forwarding Return Call Repeat Dialing Call Forward Busy - Fixed Call Forward No Answer - Fixed

Essentials 18.00 (1) 19.00 (I) Enhanced Call Waiting Three-Way Calling Call Forwarding Return Call Repeat Dialing Caller ID with Name (includes Anonymous Call Rejection) Call Forward Busy - Fixed Call Forward No Answer - Fixed Call Waiting ID

(1) Grandfathered service limited to existing customers at existing locations as of November 15, 2009.

ISSUED: July 16, 2019 EFFECTIVE: September 6, 2019 TX 19-09

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 6th Revised Sheet No. 35 Cancels 5th Revised Sheet No. 35

CENTRAL OFFICE SERVICE AND FEATURES

VIII. EXPRESSTOUCH SERVICE (Continued)

G. Network Services Packages (Continued)

Monthly Rate Description Residence Business

Advantage (1) $18.00 $18.00 (I) Enhanced Call Waiting Caller ID with Name (includes Anonymous Call Rejection) Return Call Call Forward Busy - Fixed Call Forward No Answer - Fixed

Classics Calling Package (2) 18.00 (I) 16.00 Three-Way Calling Call Forwarding Return Call Caller ID with Name (includes Anonymous Call Rejection) Call Forward Busy - Fixed Call Forward No Answer - Fixed

Priority Package (2) N/A 15.00 (I) Call Forwarding Call Forward No Answer - Fixed Call Forward Busy - Fixed Enhanced Call Waiting Caller ID with Name (includes Anonymous Call Rejection)

Home II Package (2) 16.00 N/A (I) Enhanced Call Waiting - Optional Call Waiting ID Three-Way Calling Caller ID with Name (includes Anonymous Call Rejection) Call Forward No Answer - Fixed Call Forward Busy - Fixed

(1) Grandfathered service limited to existing customers at existing locations as of December 1, 2000.

(2) Grandfathered service limited to existing customers at existing locations as of November 15, 2009.

ISSUED: July 16, 2019 EFFECTIVE: September 6, 2019 TX 19-09

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) 4th Revised Sheet No. 36 Cancels 3rd Revised Sheet No. 36

CENTRAL OFFICE SERVICE AND FEATURES

IX. SOLUTIONS – RESIDENCE

A. General

1. Solutions is an optional residence service enrollment plan that permits a customer to receive Residence one party service plus features for a flat monthly rate, for each Solutions Package residence line provided. Exchange-specific Extended Calling Surcharges (ECS) as specified in the Local Exchange Tariff Sections 1 through 61, will appear as separate line items on the customer’s bill for each Solutions Package.

B. Regulations

1. Solutions customers may terminate their enrollment in the Plan at any time upon notice to the Company, subject to the conditions specified in XXII.C. of Section 7. (N)

2. Unless terminated by the Solutions customer or the Company, a customer will remain enrolled in the Plan, as amended from time-to-time, with any applicable changes in rate, for as long as the Plan continues to be offered by the Company.

3. The Plan is not available with Residential ISDN-BRI Service lines or to customers who are or become toll restricted.

4. No more than four (4) residence lines can be enrolled with the Solutions option for each customer Billed Telephone Number account.

5. Service Connection Charges do not apply when Solutions replaces existing Local Exchange Service or if the customer requests a change from Solutions back to regulated Local Exchange Service. Service Connection Charges as specified in Section 17 of this tariff apply for new and additional Solutions lines and moves of existing Solutions lines, except for Pure Bundle lines. No Service Connection Charges apply for the installation of Pure Bundle.

6. Solutions customers are not eligible for promotional offerings associated with the Custom Calling Services included in the Plan, unless specifically provided for in a promotional offering.

ISSUED: June 16, 2020 EFFECTIVE: July 17, 2020 TX2020-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) Second Revised Sheet No. 37 Cancels First Revised Sheet No. 37

CENTRAL OFFICE SERVICE AND FEATURES

IX. SOLUTIONS – RESIDENCE (Continued)

B. Regulations (Continued)

(D)

(D) (D)

ISSUED: December 18, 2009 EFFECTIVE: January 1, 2010

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 10th Revised Sheet No. 38 Cancels 9th Revised Sheet No. 38

CENTRAL OFFICE SERVICE AND FEATURES

IX. SOLUTIONS – RESIDENCE (Continued)

C. Rates and Charges

Monthly Rate Residence

1. Core Solution (1) 1FLCIBD $46.00 (I) Local Exchange Service Enhanced Call Waiting – Optional Call Forwarding Three-Way Calling Caller ID with Name (includes Anonymous Call Rejection) Repeat Call Return Call Call Forward No Answer - Fixed Call Forward Busy - Fixed Speed Dial 8 Selective Call Acceptance Selective Call Forwarding Selective Call Ring Selective Call Rejection

2. Clear Solution (1) 1FLCIBD 46.00 (I) Local Exchange Service Call Forwarding Three-Way Calling Caller ID with Name (includes Anonymous Call Rejection) Repeat Call Return Call Call Forward No Answer - Fixed Call Forward Busy - Fixed Speed Dial 8 Selective Call Acceptance Selective Call Forwarding Selective Call Ring Selective Call Rejection

(1) Effective August 1, 2007, Core Solution and Clear Solution are no longer available to new customers. Existing customers may continue to subscribe to this service until they discontinue service at their current location or they select alternative services at their existing location. As of July 15, 2011, this service is limited to lines in service at existing locations.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 11th Revised Sheet No. 39 Cancels 10th Revised Sheet No. 39

CENTRAL OFFICE SERVICE AND FEATURES

IX. SOLUTIONS – RESIDENCE (Continued)

C. Rates and Charges (Continued)

Monthly Rate Residence

3. Personal II Solution (1) $41.00 (I) Local Exchange Service Enhanced Call Waiting - Optional

Call Waiting ID Call Forwarding Three-Way Calling Caller ID with Name (includes Anonymous Call Rejection) Return Call Repeat Dialing Call Forward No Answer - Fixed Call Forward Busy - Fixed Selective Call Forwarding

4. Reserved for Future Use

(1) Grandfathered service limited to existing customers at existing locations as of November 15, 2009. As of July 15, 2011, this service is limited to lines in service at existing locations.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 11th Revised Sheet No. 40 Cancels 10th Revised Sheet No. 40

CENTRAL OFFICE SERVICE AND FEATURES

IX. SOLUTIONS – RESIDENCE (Continued)

C. Rates and Charges (Continued) Monthly Rate Residence

5. Special Plan – Metro Bundle (3) $42.95 (1) Local Exchange Service Enhanced Call Waiting – Optional Caller ID with Name (includes Anonymous Call Rejection) Call Forwarding Call Forward Busy - Fixed Call Forward No Answer - Fixed Return Call Call Waiting ID Repeat Dialing Selective Call Acceptance Optional Extended Metropolitan Service (where available)

6. Progressive Plan (2) (4) 35.00 (I) Local Exchange Service Enhanced Call Waiting - Optional Call Waiting ID Three-Way Calling Caller ID with Name (includes Anonymous Call Rejection) Call Forwarding Call Forward No Answer - Fixed Call Forward Busy - Fixed

7. Simple Solution (4) 29.00 (I) Local Exchange Service Caller ID with Name (includes Anonymous Call Rejection) Speed Dial - 8

(1) Special Plan-Metro Bundle is available for $30.00 when customers also subscribe to Embarq (I) Communications, Inc. Solutions Unlimited - Option 1 long distance plan plus either the Company’s High-speed Internet (DSL), DISH Network® Satellite TV from the Company or Embarq Wireless.

(2) Effective February 18, 2007 new customers must also subscribe to Voicemail.

(3) Grandfathered service limited to existing customers at existing locations as of November 15, 2009. As of July 15, 2011, this service is limited to lines in service at existing locations.

(4) Grandfathered service limited to lines in service at existing locations as of July 15, 2011.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 13th Revised Sheet No. 41 Cancels 12th Revised Sheet No. 41

CENTRAL OFFICE SERVICE AND FEATURES

IX. SOLUTIONS – RESIDENCE (Continued)

C. Rates and Charges (Continued) Monthly Rate Residence

8. Standard Home Phone Service II (1) (3) $41.00 (I) Local Exchange Service Caller ID with Name (includes Anonymous Call Rejection) Enhanced Call Waiting Call Waiting ID Three-Way Calling Call Forwarding Repeat Dialing Return Call Selective Call Forwarding Speed Dial - 8

9. Follow Me Plan (2) (4) 35.00 (I) Local Exchange Service Enhanced Call Waiting - optional Call Waiting ID Three-Way Calling Caller ID with Name (includes Anonymous Call Rejection) Call Forward No Answer - Fixed Call Forward Busy - Fixed Return Call Repeat Dialing

10. Essential Home Phone Plan (4) 33.00 (I) Local Exchange Service Caller ID with Name (includes Anonymous Call Rejection) Call Waiting ID (optional) Enhanced Call Waiting Speed Dial - 8

(1) Customers must also subscribe to the Company’s Voicemail and must initially subscribe to any one of the following services: LineGuard or Home Phone Warranty.

(2) Customers must also subscribe to the Company's non-regulated Voicemail with Integrated Calling Features (ICF). This bundle is only available where Voicemail with ICF is technically feasible.

(3) Limited to existing residence customers at existing locations as of May 15, 2009. As of July 15, 2011, this service is limited to lines in service at existing locations.

(4) Grandfathered service limited to lines in service at existing locations as of July 15, 2011. ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 7th Revised Sheet No. 41.1 Cancels 6th Revised Sheet No. 41.1

CENTRAL OFFICE SERVICE AND FEATURES

IX. SOLUTIONS – RESIDENCE (Continued)

C. Rates and Charges (Continued) Monthly Rate Residence

11. Pure Bundle – GRANDFATHERED (1) (2) $28.00 (6) Local Exchange Service Outbound Call Block Feature Non-Published Telephone Number service Billed Number Screening (optional)

12. Simple Choice Bundle (3) (5) 33.95 (4) (I) Local Exchange Service Choice of available Custom Calling or ExpressTouch Features

(1) Zone Charges, as described in the Company’s Local Exchange Tariff, do not apply for this bundle.

(2) Effective June 11, 2017, Pure Bundle is grandfathered for residential customers. Availability to current customers is limited to lines in service at existing locations.

(3) The customer must also subscribe to the Embarq Communications, Inc. Easy Talk Simple Choice Long Distance plan.

(4) Simple Choice Bundle is available for $26.00 when customers subscribe to the Company’s Voicemail in addition to Embarq Communications, Inc. Easy Talk Simple Choice Long Distance.

(5) Grandfathered service limited to lines in service at existing locations as of December 5, 2014.

(6) The monthly rate includes the Subscriber Line Charge.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 Second Revised Sheet No. 41.2 Cancels First Revised Sheet No. 41.2

CENTRAL OFFICE SERVICE AND FEATURES

IX. SOLUTIONS – RESIDENCE (Continued)

C. Rates and Charges (Continued) Monthly Rate Residence

“A” Exchanges (1) “B” Exchanges (1)

13. Simple Choice Unlimited Bundle (2) (6) $29.95 (3) $39.95 (4) (C) Local Exchange Service Choice of available Custom Calling or Express Touch Features Unlimited Optional Extended Metropolitan Service (EMS) and Optional Extended Area Service (OEAS), where available – Optional (5)

(1) See Section 13.IX.D. for listing of “A” and “B” Exchanges.

(2) The customer must also subscribe to the Embarq Communications, Inc. Easy Talk Simple Choice Unlimited Long Distance plan. This additional required service is not regulated under this tariff.

(3) Simple Choice Unlimited Bundle is available in “A” Exchanges at the following rates when customers also subscribe to the following services in addition to Embarq Communications, Inc. Easy Talk Unlimited Long Distance plan:

• With subscription to the Company’s Voicemail, the Simple Choice Unlimited Bundle rate is $26.00. This additional required service is not regulated under this tariff. • With subscription to the Company’s High Speed Internet (1.5M or higher), the Simple Choice Unlimited Bundle rate is $24.95. This additional required service is not regulated under this tariff. • With subscription to the Company’s Voicemail and High Speed Internet (1.5M or higher), the Simple Choice Unlimited Bundle rate is $21.00. These additional required services are not regulated under this tariff.

(4) Simple Choice Unlimited Bundle is available in “B” Exchanges at the following rates when customers also subscribe to the following services in addition to Embarq Communications, Inc. Easy Talk Unlimited Long Distance plan:

• With subscription to the Company’s Voicemail, the Simple Choice Unlimited Bundle rate is $36.00. This additional required service is not regulated under this tariff. • With subscription to the Company’s High Speed Internet (1.5m or higher), the Simple Choice Unlimited Bundle rate is $34.95. • With subscription to the Company’s Voicemail and High Speed Internet (1.5m or higher), the Simple Choice Unlimited Bundle rate is $31.00. These additional required services are not regulated under this tariff.

(5) OEMS NPA/NXX is required.

(6) Grandfathered service limited to lines in service at existing locations as of December 5, 2014. (N)

ISSUED: November 20, 2014 EFFECTIVE: December 5, 2014 TX 14-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 8th Revised Sheet No. 41.3 Cancels 7th Revised Sheet No. 41.3

CENTRAL OFFICE SERVICE AND FEATURES

IX. SOLUTIONS – RESIDENCE (Continued)

C. Rates and Charges (Continued) (1) Monthly Rate Residence (I) 14. Economy Pack Bundle $33.95 (2)

Local Exchange Service

Caller ID with Name (includes Anonymous Call Rejection) - Optional Call Waiting ID – Optional Enhanced Call Waiting – Optional

15. Economy Pack Plus Bundle (3) (4) 29.00 (I) Local Exchange Service Caller ID with Name (includes Anonymous Call Rejection) - Optional Call Waiting ID – Optional Enhanced Call Waiting – Optional

16. Economy Pack Plus Lite Bundle (4) (5) 29.00 (I) Local Exchange Service Caller ID with Name (includes Anonymous Call Rejection) - Optional Call Waiting ID – Optional Enhanced Call Waiting – Optional

17. Metro Bundle (6) (7) (8) 27.00 (I) Local Exchange Service Speed Dial 8 Extended Metropolitan Service (EMS)

(1) The Extended Calling Surcharge is included in the monthly rate.

(2) The monthly rate includes the Subscriber Line Charge. Customers who subscribe under a twelve month commitment will receive a $5.00 discount off the monthly rate during the first twelve months of service, after which the applicable monthly rate will apply.

(3) Customers must also subscribe to the Company’s 768 Kbps High Speed Internet.

(4) Effective April 12, 2019, Economy Pack Plus and Economy Pack Plus Lite are grandfathered. Availability to current customers is limited to lines and features in service at existing locations.

(5) The customer must also subscribe to Embarq Communications, Inc, Easy Talk Economy long distance plan, the Company’s High Speed Internet (up to 1.5 Mbps), and any non-international DIRECTV® package (which is billed by the Company). This bundle is available in limited exchanges as determined by the Company. Existing DIRECTV® subscribers are not eligible for this bundle.

(6) This bundle is only available in the following local exchanges: Kaufman.

(7) EMS NPA/NXX is required.

(8) Grandfathered service limited to lines in service at existing locations as of December 5, 2014. DIRECTV® is used with permission.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 1st Revised Sheet No. 41.3.1 Cancels Original Sheet No. 41.3.1

CENTRAL OFFICE SERVICE AND FEATURES

IX. SOLUTIONS – RESIDENCE (Continued)

C. Rates and Charges (Continued) Monthly Rate Residence

“A” Exchanges (1) “B” Exchanges (1) (C)(T) 18. Home Phone II (2) (3) (4) $28.95 (5) $38.95 (5) Local Exchange Service Anonymous Call Rejection Repeat Dialing Call Forward Busy – Fixed Call Forward No Answer – Fixed Call Forwarding Call Forward Remote Access (where available) Return Call Enhanced Call Waiting Call Waiting ID Caller ID with Name Cancel Call Waiting Message Waiting Selective Call Acceptance Selective Call Forwarding Selective Call Rejection Selective Call Ring Three-Way Calling Voice Mail (6) (T)

(1) See Section 13.IX.D. for listing of “A” and “B” Exchanges.

(2) The customer must subscribe to either CenturyLink Communications, LLC Home Phone II Per Minute long distance plan or CenturyLink Communications, LLC Home Phone II Unlimited long distance plan to qualify for this bundle.

(3) If the customer subscribes to the CenturyLink Communications, LLC Home Phone II Unlimited long distance plan the customer will also receive unlimited Optional Metropolitan Service (EMS) and unlimited Optional Extended Area Service (OEAS), where available, for no additional charge. OEMS NPA/NXX is required.

(4) Effective June 11, 2017, Home Phone II is grandfathered for residential customers. (N) Availability to current customers is limited to lines in service at existing locations. (N)

(5) The Extended Calling Surcharge is included in the monthly rate. (T)

(6) Deregulated service. (T)

ISSUED: May 30, 2017 EFFECTIVE: June 9, 2017 TX 17-06

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18

Original Sheet No. 41.4

CENTRAL OFFICE SERVICE AND FEATURES

IX. SOLUTIONS – RESIDENCE (Continued)

D. “A” and “B” Exchange Classifications

1. “A” Exchanges

ATHENS GRADFORD LAKE PALESTINE STEPHENVILLE BULLARD GROESBECK MAYBANK TOOL SEVEN POINTS CHANDLER HAMILTON MALAKOFF TRINIDAD COMMERCE HICO MARTINS MILLS TUCKER COOPER KEMP NECHES WASHINGTON DUBLIN KERENS PALESTINE GATESVILLE KOON CREEK RICHARDS

2. “B” Exchanges

ANDERSON JONESBORO OVERTON RUNAWAY BAY ARP JOPLIN PALO PINTO SANTO BREMOND KAUFMAN PARADISE SHIRO BRIDGEPORT KOSSE PAYNE SPRINGS TENNESSEE COLONY BROWNSBORO MILLSAP PERRIN THORNTON CAYUGA MONTALBA PLANTERSVILLE TROUP EUSTACE MURCHISON POSSUM KINGDOM FLAT NAVASOTA POTTSVILLE FRANSTON NEW LONDON PRICE

ISSUED: July 1, 2011 EFFECTIVE: July 15, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 6th Revised Sheet No. 42 Cancels 5th Revised Sheet No. 42

CENTRAL OFFICE SERVICE AND FEATURES

X. SOLUTIONS – BUSINESS

A. General

1. Solutions is an optional business service enrollment plan that permits a customer to receive Business one party service plus features for a flat monthly rate, for each Solutions Package business line provided.

B. Regulations

1. Solutions customers may terminate their enrollment in the Plan at any time upon notice to the Company, subject to the conditions specified in XXII.C. of Section 7. (N)

3. The Plan is not available with Business ISDN-BRI Service lines or to customers who are or become toll restricted. Rotary Hunt Service is not available in conjunction with the Plan. The Plan cannot terminate to a Key system, PBX or any other line trunking device.

4. No more than nine (9) business lines can be enrolled with the Solutions option(s) for each customer location or per account.

6. Solutions customers are not eligible for promotional offerings associated with the Custom Calling Services included in the Plan, unless specifically provided for in a promotional offering.

ISSUED: June 16, 2020 EFFECTIVE: July 17, 2020 TX2020-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 43

CENTRAL OFFICE SERVICE AND FEATURES

X. SOLUTIONS – BUSINESS (Continued)

C. Term Discount Plan (TDP) ▲

1. General

a. A Term Discount Plan (TDP) provides business Solutions-Business customers who have two or more packages at the same location with discounted rates for the second and each additional package (up to a maximum of eight discounted packages at the same location) when the customers also subscribe to any Embarq Communications, Inc. long distance plan.

b. Only those Solutions business packages as specified in Section X.C.3.b. are eligible for discounts under this Term Discount Plan. No discount applies on the initial business package subscribed to under this TDP.

c. Customers may subscribe to the same or different business packages under this TDP. However, the discount applies only on those additional packages for which the tariffed monthly rate is equal to or less than the monthly rate of the initial business package.

d. Customers must subscribe to a two-year TDP commitment period to receive the discount. At the end of the TDP commitment period the customer may renew the TDP for another two-year TDP commitment period. If the customer does not specify renewal terms in writing 90 days prior to the expiration of the TDP, the commitment period and the discount in effect at the time of expiration will automatically be extended for 12 months. The customer can terminate service at the end of the commitment period with no penalty or obligation to continue the service.

e. Rate increases or decreases will automatically be applied to the monthly term plan rates for the remaining term of the TDP. If a Company initiated rate increase causes the services under the TDP to increase by 10% or more annually, then the customer may cancel the TDP without incurring termination liability charges provided the customer notifies the Company within 30 days after the effective date of the rate increase.

▲ Central Telephone Company of Texas dba Embarq concurs in the rates and regulations governing this service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 44

CENTRAL OFFICE SERVICE AND FEATURES

X. SOLUTIONS – BUSINESS (Continued)

C. Term Discount Plan (TDP) (Continued)

2. Termination Liability Charges

a. If a TDP customer disconnects any or all of the business packages subscribed to under the TDP, a termination liability charge will apply for the lines that are disconnected. The termination liability charge will be a one-time charge of $50.00 per business package that is prematurely disconnected.

b. If a TDP customer retains the access line associated with a Solutions business package, but discontinues any or all of remaining features and services that are required to receive the TDP discount, no termination liability charges will apply. However, all discounts for which the customer was eligible under this TDP will cease as of the date the required service(s) and/or feature(s) is discontinued, and the monthly rate for the remaining access lines will default to the applicable tariffed monthly rate for business individual line service.

3. Discounts

a. Customers who subscribe to two or more of the business packages listed as follows will receive a 10% discount off the tariffed monthly rate for the second and each additional package at the same location. A maximum of eight packages are eligible for the discount.

b. Business packages eligible for the discount under this TDP are:

Sure Solution II Priority Solution Economy Solution Rotary Classic Solution Economy Bundle II A

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 11th Revised Sheet No. 45 Cancels 10th Revised Sheet No. 45

CENTRAL OFFICE SERVICE AND FEATURES

X. SOLUTIONS – BUSINESS (Continued)

D. Rates and Charges Monthly Rate

1. Priority Solution (3) 1FLCRLS $45.00 (I) Local Exchange Service Priority Package

2. Sure Solution II (5) 1FLCAE2 54.00 (I) Local Exchange Service 1FLCAES Essentials 1FLCAEG 1FLCAEF

3. Classic Solution (1) 1FLCCID 50.00 (I) Local Exchange Service Classics Calling Package

4. Preferred Solution (1) 1FLCAIT 42.00 (I) Local Exchange Service 1FLCA12 In Touch With Call Forwarding 1FLCACW 1FLCAIG 1FLCAIF

5. Economy Solution (2) (5) 46.00 (I) Local Exchange Service Choice of two of the following: Call Forward No Answer - Fixed plus Call Forward Busy - Fixed Enhanced Call Waiting (4) Caller ID with Name (includes Anonymous Call Rejection) (4) SignalRing

(1) Effective June 16, 2005, this service will no longer be available for new installations. As of July 15, 2011, this service is limited to lines in service at existing locations.

(2) Customers must also subscribe to any Embarq Communications, Inc. long distance plan.

(3) Grandfathered service limited to existing customers at existing locations as of November 15, 2009. As of July 15, 2011, this service is limited to lines in service at existing locations.

(4) When Enhanced Call Waiting and Caller ID with Name are the selected features, Call Waiting ID is also provided.

(5) Grandfathered service limited to lines in service at existing locations as of July 15, 2011.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 8th Revised Sheet No. 46 Cancels 7th Revised Sheet No. 46

CENTRAL OFFICE SERVICE AND FEATURES

X. SOLUTIONS – BUSINESS (Continued)

D. Rates and Charges (Continued)

Monthly Rate

6. Economy Solution II (1) (2) $46.00 (I) Local Exchange Service Choice of three of the following:

Call Forward No Answer - Fixed plus Call Forward Busy - Fixed Enhanced Call Waiting (4) Caller ID with Name (includes Anonymous Call Rejection) (4) Three-Way Calling Repeat Dial

7. Rotary Classic Solution (3) (5) 50.00 (I) Local Exchange Service with Rotary Classics Calling Package

8. Economy Bundle II A (1) (5) 46.00 (I) Local Exchange Service Choice of three of the following:

Call Forward No Answer - Fixed plus Call Forward Busy - Fixed Enhanced Call Waiting (4) Caller ID with Name (includes Anonymous Call Rejection) (4) Three-Way Calling Return Call

(1) Customers must also subscribe to any Embarq Communications, Inc. long distance plan.

(2) Effective May 4, 2005, Economy Solution II will no longer be available for new installations. As of July 15, 2011, this service is limited to lines in service at existing locations.

(3) Customers must also subscribe to any Embarq Communications, Inc. long distance plan. Customers who subscribed to this service prior to June 16, 2005 who also subscribe to the grandfathered Small Business Unlimited long distance plan must also subscribe to Voicemail.

(4) When Enhanced Call Waiting and Caller ID with Name are the selected features, Call Waiting ID is also provided.

(5) Grandfathered service limited to lines in service at existing locations as of July 15, 2011.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 13th Revised Sheet No. 47 Cancels 12th Revised Sheet No. 47

CENTRAL OFFICE SERVICE AND FEATURES

X. SOLUTIONS – BUSINESS (Continued)

D. Rates and Charges (Continued) Monthly Rate

9. Complete Business Bundle (4) Local Exchange Service Enhanced Call Waiting Three-Way Calling Call Forwarding Return Call Repeat Dialing Caller ID with Name (includes Anonymous Call Rejection) Call Forward Busy - Fixed Call Forward No Answer - Fixed Call Waiting ID Initial bundle, per location $50.00 (1) (I) 2nd through 9th bundle 50.00 (2) (I) (per bundle), per location

10. Pure Bundle (3) 38.00 (7) Local Exchange Service Outbound Call Block Feature Non-Published Telephone Number service Billed Number Screening (optional)

11. Metro Bundle (5) (6) Local Exchange Service Speed Dial 8 Rotary Hunting Line Service (optional) Extended Metropolitan Service (EMS) Business One Party with or without Key Trunk with or Metro Bundle Exchanges Rotary without Rotary Kaufman $41.00 $44.00 (I)

(1) Customers must also subscribe to 1.5 Mbps (or greater) High-speed Internet under a two year (or greater) term commitment, Voicemail, DSL Secure, and Embarq Communications, Inc. Small Business Unlimited Solutions II long distance plan.

(2) Customers must also subscribe to the Embarq Communications, Inc. Small Business Unlimited Solutions II long distance plan.

(3) Zone Charges, as described in the Company’s Local Exchange Tariff, do not apply for this bundle.

(4) Grandfathered service limited to lines in service at existing locations as of July 15, 2011.

(5) This bundle is only available in the following local exchanges: Kaufman.

(6) EMS NPA/NXX is required.

(7) The monthly rate includes the Subscriber Line Charge. ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX 19-09

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 3rd Revised Sheet No. 48 Cancels 2nd Revised Sheet No. 48

CENTRAL OFFICE SERVICE AND FEATURES

XI. CENTREX SERVICE II

Equipment connected to the Company’s network on or after February 16, 2020, must, upon connection to the Company’s facilities, be configured by the Customer or equipment manufacturer to allow direct “911” dialing by any end user and must be configured to send MLTS notifications as described in Section 7.XII.K.1. (T)

Equipment connected as described preceding must also be configured such that it is (N) capable of conveying the dispatchable location of a “911” caller as described in Section (N) 7.XII.K.2.

A. General

Centrex Service II is a central office communications system package provided on individual access lines from Telephone Company central office equipment. The service provides local exchange access, interexchange access, intrasystem communication, and Centrex Service II feature packages. Customers subscribing to Centrex Service II with 26 or more Centrex Service II access lines may subscribe to Centrex Service II under an Individual Case Basis (ICB) contract.

B. Definitions

Abbreviated Dialing

Allows station abbreviated dialing (i.e., 3, 4, or 5 digit dialing) to other station members within the same customer group.

Auto Answer Back

Allows any incoming call to the Primary Directory Number of the set to be automatically answered after four seconds.

Automatic Call Distribution (ACD)

Automatic Call Distribution is a digital central office service that provides advanced call distribution and queuing capabilities as an integrated function of Centrex Service II. The customer must subscribe to and maintain a minimum of two ACD positions and at least one ACD group.

Automatic Line

Provides an automatic connection between a calling station that goes off-hook and a predetermined terminating number.

Call Forward – Universal, Busy and No Answer

Allows a customer to have incoming calls to a station automatically forwarded to a predetermined telephone number, either on all calls and/or busy calls and/or calls not answered.

ISSUED: April 9, 2021 EFFECTIVE: June 1, 2021 TX2021-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 3rd Revised Sheet No. 49 Cancels 2nd Revised Sheet No. 49

CENTRAL OFFICE SERVICE AND FEATURES

XI. CENTREX SERVICE II (Continued)

B. Definitions (Continued)

Call Hold

Allows the station user to hold one call for any length of time provided neither party hangs up. The station user may also place other calls while a call is on hold.

Call Park

Allows the station user to park one call against its own directory number. The parked call can be retrieved from any station within the same customer group. Once a call is parked against a directory number, the user is free to make or receive calls on that directory number.

Call Pick-Up

Allows the station user to answer incoming calls directed to another station within a defined pickup group by dialing a feature activation code.

Call Transfer

Allows a station to transfer an incoming call to another extension.

Call Waiting – Cancel Call Waiting

Informs a station user, while on an established call, that a second call is waiting. Cancel Call Waiting allows a station user to prevent, on a per-call basis, any incoming calls from call-waiting on his or her line. Incoming calls to the station are given busy treatment. This feature ensures that call-waiting indication tones will not interrupt important calls or disrupt data transmissions.

Class of Service Restrictions [1] [2] (C)

Defines the specific features and calling patterns available to stations and attendants within a customer group. Access code restrictions can be set up to restrict stations and attendants from trunk types such as local, toll, and DID. The following options are available:

Fully Restricted Service – Allows intragroup dialing only. The station user must dial 9. Toll Restricted Service – Allows intragroup and local dialing only. The station user must dial 9. Unrestricted Service – Allows full access to all facilities. The station user must dial 9. Unrestricted Assume Dial 9 – Same as unrestricted; however, the station user cannot utilize abbreviated dialing. Note: 900 and 976 blocks are available with all options.

[1] Class of Service Restrictions configured on and after February 16, 2020 must be configured to allow end users to dial “911” directly without dialing “9” or any other prefix code prior to dialing “911” as described in Section 7.XII.K.1. (T)

[2] Equipment connected as described preceding must also be configured such that it is capable of (N) conveying the dispatchable location of a “911” caller as described in Section 7.XII.K.2. (N)

ISSUED: April 9, 2021 EFFECTIVE: June 1, 2021 TX2021-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 50

CENTRAL OFFICE SERVICE AND FEATURES

XI. CENTREX SERVICE II (Continued)

B. Definitions (Continued)

Direct Inward Dialing

Allows for incoming calls from the exchange network to reach a specific station. The calling party dials the seven-digit directory number to reach the station.

Direct Outward Dialing

Allows a station user to place external calls to the exchange network by dialing the access code (usually the digit 9), receiving an optional second dial tone, then dialing the external number.

Distinctive Ringing

Provides the station user the ability to determine whether the call is from a station within the customer group or from the exchange network by the cadence of the ringing of the phone. The ringing cadence will be one (1) long ring for internal calls and two (2) short rings for external calls.

Last Number Redial

Enables the station user to redial the last called number by pressing a single key rather than dialing the entire number.

Meet-Me-Conference

Allows up to six (6) conferees to hold a conference call by dialing a directory number at a specified time. Meet-Me-Conference is limited to one (1) per Centrex Service II access line.

Multiple Appearance – Directory Number (MADN)

A directory number that is assigned to more than one station.

Music-On-Hold

Provides the music-on-hold capability to calls that terminate on business sets. When a call is put on hold, the caller hears music, announcement, silence, or a combination of the three treatments. The music source must be provided by the subscriber and requires an additional Centrex Service II access line connecting the customer’s music source to the Telephone Company’s central office.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 51

CENTRAL OFFICE SERVICE AND FEATURES

XI. CENTREX SERVICE II (Continued)

B. Definitions (Continued)

Ring Again

Allows a station user encountering a busy station to be notified when the busy station becomes idle and to be placed automatically in a ring-again mode.

Secondary Directory Number

Directory number not associated with a line, but assigned for use with priority hunting. Secondary Directory Numbers are limited to two (2) per Centrex Service II access line.

Speed Call Long (30)

Provides for the calling of up to 30 numbers by dialing an abbreviated code.

Speed Call Short (10)

Provides for the calling of up to 10 numbers by dialing an abbreviated code.

Station Hunting (sequential, circular, multi-line)

Allows a call to be routed to another telephone number when the called station is busy.

Three-Way Conference with Consultation Hold and Transfer

Allows a station user to call a third party to conference the third party in, notify the third party of a call being transferred or consult with the third party while the other party is on hold.

Touch-Tone

A central office provided tone network signaling arrangement for origination of telephone calling.

Uniform Call Distribution (UCD)

Allows for an even distribution of incoming calls to a listed directory number. Each station has its own directory number. Included with this feature is the provision of message announcement for calls in queuing. The customer will be responsible for providing the compatible tape and the announcement.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 52

CENTRAL OFFICE SERVICE AND FEATURES

XI. CENTREX SERVICE II (Continued)

C. Regulations

1. Centrex Service II is provided subject to the availability of facilities and central office equipment as determined by the Telephone Company.

2. Centrex Service II does not include terminal equipment on the customer’s premises. Provision of the telephone instruments or other equipment is the responsibility of the customer. Some features require specific customer provided customer premises equipment (CPE). In addition, not all CPE will support all features.

3. Directory Listings are furnished in accordance with the rates and regulations specified in Section 5 of this tariff.

4. Service Connection and Service Charges as specified in Section 17 of this tariff apply to the services offered in this section and are in addition to the Service Establishment Translation Charge. For feature changes after the initial installation, the Service Order Charge will apply in addition to applicable nonrecurring charges.

5. The minimum service period for Centrex Service II is one month, unless customers select a 1 year or 3 year TDP.

6. The quality of transmission for calls utilizing call forwarding or conferencing may vary depending on the distance and routing involved.

7. Directory Assistance charges, as specified in Section 5 of this tariff, apply to Centrex Service II.

8. Call Forward-Universal, Busy, and No Answer shall not be used to extend calls on a planned and continuing basis to intentionally avoid the payment in whole or in part of message toll charges that would regularly be applicable between the station originating the call and the station to which the call is transferred nor shall it be used to simulate rotary service from the Telephone Company central office. Each Centrex Service II access line allows for the forwarding of one call at a given time.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18 First Revised Sheet No. 53 Cancels Original Sheet No. 53

CENTRAL OFFICE SERVICE AND FEATURES

XI. CENTREX SERVICE II (Continued)

C. Regulations (Continued)

9. Temporary Suspension of Service (Vacation Service), as specified in Section 19 of this tariff, is not allowed for Centrex Service II.

10. Not all Centrex Service II features are compatible with one another. Some combinations of features will not work when applied on the same Centrex Service II access line.

11. Centrex Service II is not offered in conjunction with key or PBX trunk local exchange service.

12. The assignment of telephone numbers and the sequence of the numbers assigned to a Centrex Service II are made at the discretion of the Telephone Company. The Telephone Company does not guarantee to provide telephone numbers arranged in a consecutive manner. If the customer requests telephone numbers under a special numbering arrangement to be terminated in a Centrex Service II customer group, then additional recurring and non-recurring charges may apply as determined under an ICB arrangement.

13. Centrex Service II is not provided in association with Local Measured Service, residential lines, or Pay Telephone Access Line Service.

14. All exchange access lines terminating in a Centrex Service II system must be served by the same central office or associated remote switch.

15. The rates and charges applicable to Optional Metropolitan Calling Area (MCA) (C) Service, as specified in Section 3 of the United Local Exchange Tariff also apply per Centrex Service II access line.

16. The Telephone Company shall not be liable, directly or indirectly for damages, unless caused by gross negligence of the Telephone Company in failing to maintain reasonable standards of maintenance and inspection and exercise reasonable supervision.

ISSUED: August 18, 2008 EFFECTIVE: August 28, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 54

CENTRAL OFFICE SERVICE AND FEATURES

XI. CENTREX SERVICE II (Continued)

D. Service Features

1. Standard Features

The Centrex Service II access line rate includes the following features; however the customer may select which features are activated on a per line basis.

Abbreviated Dialing Auto Answer Back Call Forward - Universal, Busy, and No Answer Call Hold Call Transfer Call Waiting – Cancel Call Waiting Direct Inward Dialing Direct Outward Dialing Last Number Redial Speed Call Short (10) Station Hunting Three-Way Conference with Consultation Hold and Transfer Touch-Tone Service

2. Optional Features

The following optional features are available at the monthly rate specified in Section 18.XI.F.5.

Automatic Call Distribution Automatic Line Call Park/Call Pick-Up Class-of-Service Restrictions Distinctive Ringing/Ring Again Meet-Me-Conference Multiple Appearance Directory Number (MADN) Music On-Hold Secondary Directory Number Speed Call Long (30) Uniform Call Distribution

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 55

CENTRAL OFFICE SERVICE AND FEATURES

XI. CENTREX SERVICE II (Continued)

E. Term Discount Plan (TDP)

1. Term Discount Plans (TDPs) are available for Centrex Service II, and provide the customer with discounted rates. The customer must agree to a minimum service commitment period for Centrex Service II when the TDP is established. The customer must order a TDP in writing to the Telephone Company. A TDP may be ordered based on the following plan options:

Plan A: 1 Year Plan B: 3 Year

2. The customer must specify the length of the initial service period at the time the service is ordered. When a customer converts to a TDP, no Service Establishment Translation Charge is applied toward Centrex Service II facilities in-service at that time. If a customer moves from a month to month plan to a TDP, or upgrades from a 1 year TDP to a 3 year TDP, then no Service Establishment Translation Charge is applied.

3. If a TDP customer disconnects service prior to the end of the TDP, the customer is liable for 100% of the payments remaining for the remainder of the term plan. If Construction Charges were applied to the service being terminated, any termination charges associated with those services will also apply.

4. Rate increases or decreases will automatically be applied to the monthly term plan rates for the remaining term of the TDP. If Telephone Company initiated rate increases to any rate element or combination of rate elements causes the charges for the entire Centrex Service II under the TDP to increase by 10% or more annually, then the customer may cancel the TDP without incurring termination liability charges provided that the customer notifies the Telephone Company within 30 days after the effective date of the rate increase.

5. TDP commitment periods can be extended by the customer at any time during the term of the plan, up to a maximum of 3 years. The number of months accrued in the current plan will apply toward the new plan selected. However, charges under the new TDP commitment period will apply only on a go-forward basis.

6. Upon expiration of the TDP service commitment period, the customer may subscribe to a new TDP at the prevailing rates set forth in Section 18.XI.F.1 following. At the end of the TDP service commitment period there is no automatic renewal of the TDP, and the rates will convert to the prevailing month to month rates unless the customer selects a new TDP.

7. Customers under a TDP who change physical locations will not be subject to termination charges if the customer subscribes to a new Centrex Service II TDP at the new location. However, the number of months accrued in the current plan will not apply toward the plan selected for the new location.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) Second Revised Sheet No. 56 Cancels First Revised Sheet No. 56

CENTRAL OFFICE SERVICE AND FEATURES

XI. CENTREX SERVICE II (Continued)

F. Rates and Charges

1. Business, Centrex Service II Access Line Monthly Rate

Month to Month $36.00 1 Year 35.00 3 Year 33.00

2. Service Establishment Translation Charge Nonrecurring Charge

$50.00

1. This charge applies when performing the central office translation associated with configuring a Centrex Service II customer's network parameters.

2. This charge applies to each Centrex Service II customer group translation activity performed.

3. Service Connection and Service Charges as specified in Section 17 of this tariff apply to the services offered in this section and are in addition to the Service Establishment Translation Charge.

3. Feature Change Charge

Nonrecurring Charge

1. Per line $10.00 Maximum charge per order 50.00

2. This charge applies when performing changes to service features after the initial installation. This charge applies to both standard features and optional features.

3. For feature changes after the initial installation, a Service Order Charge will also apply.

4. Federal monthly end user charges apply on a per line basis, as described in CenturyLink Operating Companies Tariff F.C.C. No. 9, Section 4. (T)

ISSUED: April 8, 2013 EFFECTIVE: April 18, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18 First Revised Sheet No. 57 Cancels Original Sheet No. 57

CENTRAL OFFICE SERVICE AND FEATURES

XI. CENTREX SERVICE II (Continued)

F. Rates and Charges (Continued) Monthly Rate 5. Optional Features:

Automatic Call Distribution ICB Automatic Line $ 2.20 ( I ) Call Park/Call Pick-Up 2.20 Class-of-Service Restrictions 2.20 Distinctive Ringing/Ring Again 2.20 Meet-Me-Conference (per customer group) 22.28 ( I ) Multiple Appearance Directory Number (per number, per appearance) 3.30 ( I ) Music On-Hold (per customer group) 27.50 ( I ) Secondary Directory Number (per directory number) 3.30 ( I ) Speed Call Long (30) (per customer group) 5.50 ( I ) Uniform Call Distribution ICB

ISSUED: August 18, 2008 EFFECTIVE: August 28, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 58

CENTRAL OFFICE SERVICE AND FEATURES

XII. 900/976 SERVICE ACCESS BLOCKING

A. General

900/976 Service Access Blocking is furnished to customers upon request or by PUC order in certain areas, to prevent access to the 900/976 network. A call will be diverted to a Company-provided intercept announcement when customers dial a 900/976 number from a blocked line.

900/976 Service Access Blocking is provided in digital central offices where facilities exist and are available. This blocking service enables customers to prohibit dialing of calls to 1+900/1+976. Calls which are placed using alternative dialing patterns cannot be blocked. The customer indemnifies and holds harmless the Telephone Company from any and all claims, losses or damages caused by blocking of 900/976 service access.

Basic local exchange service will not be discontinued for non-payment of charges for 900/976 service. However, the customer may be blocked from 900/976 access for non- payment of 900/976 charges.

B. Rates and Charges

There is no recurring or non-recurring charge to establish 900/976 Service Access Blocking initially. However, any subsequent request to reinstate 900 Service Access Blocking will result in the appropriate Installation Charges listed below

Residence $2.50 Business 5.00

XIII. INTERNATIONAL DIRECT DIALED CALL BLOCKING

A. General

International Direct Dialed Call Blocking (IDD) will be furnished to customers, including Private Pay Telephone Providers, at their request to prevent access to the International Network. Attempts to place IDD calls to access the International Network will be diverted to a Company-provided intercept announcement when end users dial 011 + or 101XXXX + 011 from an access line arranged for this type of restriction.

IDD Call Blocking is provided to individual line customers in exchanges where it is technologically feasible. Party line customers are exempt from this offering.

B. Rates and Charges

A one-time installation charge of $10.00 will apply for each line equipped with IDD Call Blocking.

No other non-recurring charges will apply for existing customers ordering IDD Call Blocking.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18 First Revised Sheet No. 59 Cancels Original Sheet No. 59

CENTRAL OFFICE SERVICE & FEATURES

XIV. RESERVED FOR FUTURE USE (T) (M)

(M)

(M) Material previously found on this sheet now appears in Section 118, Original Sheet No. 1.

ISSUED: June 19, 2009 EFFECTIVE: July 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18 First Revised Sheet No. 60 Cancels Original Sheet No. 60

CENTRAL OFFICE SERVICE & FEATURES

(M)

(M1)

(M) Material previously found on this sheet now appears in Section 118, Original Sheet No. 1.

(M1) Material previously found on this sheet now appears in Section 118, Original Sheet No. 2.

ISSUED: June 19, 2009 EFFECTIVE: July 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18 Second Revised Sheet No. 61 Cancels First Revised Sheet No. 61

CENTRAL OFFICE SERVICE AND FEATURES

(M)

XV. TOLL AND CASUAL DIALING RESTRICTION (T)

A. General (N)

Toll and Casual Dialing Restriction provides a means of restricting access to the Long (T) Distance Message Telecommunications Network by direct dial or operator handled, which includes 1+, 0+ 0-, 00-, and 01/011+ to numbers outside of the North American Numbering Plan. Access to 900, 976, 500 & 700 numbers will be restricted in addition to the casual dialing of toll calls (by preceding the telephone number with 101XXXX+).

Toll and Casual Dialing Restriction will be available to a customer only if the customer's (T) serving central office and NNX code have a Universal Emergency Service (911) in operation.

Restriction of access to operator services prevents the customer from dialing an operator for all purposes including emergencies, assistance and the placing of toll calls. Directory Assistance will not be accessible from a line with this restriction (411, 1411, 555-1212, 1- 555-1212, or 1-npa-555-1212). The customer indemnifies and saves harmless the Telephone Company from any and all claims, losses, or damages caused by restriction of access to operator services.

All local calls, calls to Telephone Company numbers such as repair service will be permitted. Local Measured Charges will not be prevented and, where facilities allow, N11 will only be blocked if it terminates outside the local calling area or to a non-toll-free number.

(D) (D)

(M) Material previously found on this sheet now appears in Section 118, Original Sheet No. 2.

ISSUED: June 19, 2009 EFFECTIVE: July 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18 Third Revised Sheet No. 62 Cancels Second Revised Sheet No. 62

CENTRAL OFFICE SERVICE AND FEATURES

XV. TOLL AND CASUAL DIALING RESTRICTION (Continued) (T)

A. General (Continued) (T)

The service may be provided to individual line customers in exchanges equipped to program the service without alteration of the central office equipment. Toll Restriction is not provided on access lines in connection with PBX services.

B. Rates and Charges (T)

Residence Business Monthly Monthly SAE Code Rate Rate

Option #1 - per telephone number FTL1BLK(ALL) $4.50 $5.00 (T) 1+ DDD 0-, 0+, 00- 01/011+DDD to numbers outside the North American Numbering Plan Directory Assistance (411, 1411, 555-1212, 1-555-1212, 1-NPA-555-1212) 101XXXX access to toll numbers Toll Free Code numbers (1 + 800, 1 + 888, etc.) N11*, 500, 700, 900, 976 (Allows 1+710 and 911 calls) (Z)

Option #2 - per telephone number FTL1BLK(ATF) 4.50 5.00 1+ DDD 0-, 0+, 00- 01/011+DDD to numbers outside the North American Numbering Plan Directory Assistance (411, 1411, 555-1212, 1-555-1212, 1-NPA-555-1212) 101XXXX access to toll numbers N11*, 500, 700, 900, 976 (Allows toll free, 1+710 and 911 calls) (Z) (T)

Lifeline subscribers who receive Toll and Casual Dialing Restriction are exempt from paying (T) a monthly rate or a non-recurring charge. (M)

(M)

* Where facilities allow, N11 (except 411) will only be restricted if the call terminates outside (Z) the local calling area or to a non-toll-free number. (Z)

(M) Material previously found on this sheet now appears in Section 18, Original Sheet No. 62.1.

ISSUED: June 19, 2009 EFFECTIVE: July 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 62.1

CENTRAL OFFICE SERVICE AND FEATURES

XVI. BILLED NUMBER SCREENING ▲ (M)

A. General

1. Billed Number Screening is provided at the option of the Telephone Company. Billed Number Screening is a service which through operator screening prevents incoming collect and third number billed calls from being billed to the customer. The customer's telephone number is included in the data base which is made available to companies that provide validation services. Inclusion in the data bases indicates incoming collect and third number billed calls will not be allowed for billing to the customer's line.

2. Billed Number Screening is applied via telephone number. Each telephone number associated with an access line (i.e., SignalRing numbers) requires its own subscription to Billed Number Screening.

3. Operator screening of incoming collect, international collect and third number billed calls is limited to operator services providers that access the validation data base and, therefore, cannot be guaranteed. If a call is completed in violation of the billing restriction, the Telephone Company shall remove the charges for the call from the end user customer’s bill and assess the charges for the call to the operator services provider that completed the call.

Billed Number Screening Monthly Rate(1) Residence Business a. Incoming Collect Calls Only $1.00 $1.00 b. Third Number Billed Calls Only 1.00 1.00 c. Incoming Collect and Third Number Billed Calls 1.00 1.00 (M)

(1) Bill Number Screening is provided at no charge for Pay Telephone Service. (M)

▲ Central Telephone Company of Texas dba Embarq concurs in the rates and regulations governing (M) this service. (M)

(M) Material now appearing on this sheet was previously found in Section 18, Second Revised Sheet No. 62.

ISSUED: June 19, 2009 EFFECTIVE: July 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 6th Revised Sheet No. 63 Cancels 5th Revised Sheet No. 63

CENTRAL OFFICE SERVICE AND FEATURES

XVII. ROTARY HUNTING LINE (1)

The term "Rotary Hunting Line" denotes the grouping of exchange access arrangements arranged for completion of calls when a business line is busy by overflowing to vacant line in the same prefix, area code, and group that is available to receive a call. Rotary Hunting Line Service is available to all business customers whether they have Local Exchange Access Service, Extended Area Service, or Extended Metro Service. Mixing of EMS and non-EMS lines within a service arrangement such as Multi-Line Hunting, PBX Trunk or Centrex is allowed only as long as the local lines hunt to EMS lines. Residence customers may subscribe to Call Forward Busy in lieu of Rotary Hunting Line Service for up to and including five lines, at the same or different locations.

XVIII. RESERVED FOR FUTURE USE (C)

(D)

(1) See Local Exchange Tariff for Obsolete Residence Rotary one party service and Obsolete Residence Measured Rotary one party service, which are limited to existing customers in existing locations as of March 1, 2009. (D) (D)

ISSUED: February 16, 2017 EFFECTIVE: May 12, 2017 TX17-02

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) First Revised Sheet No. 64 Cancels Original Sheet No. 64

CENTRAL OFFICE SERVICE AND FEATURES

XIX. RESERVED FOR FUTURE USE (T) (D)

(D)

ISSUED: October 3, 2011 EFFECTIVE: EFFECTIVE: March 1, 2012

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) Third Revised Sheet No. 65 Cancels Second Revised Sheet No. 65

CENTRAL OFFICE SERVICE AND FEATURES

XIX. RESERVED FOR FUTURE USE (Continued) (T) (D)

(D)

XX. CALL LINE IDENTIFIER ▲

A. General

1. Call Line Identifier is used to attempt to trace and identify, at the request of a subscriber, the source or origin of obscene, harassing, and/or other nuisance type of telephone calls. Call Line Identifier service is intended for situations where subscribers require extended trace for a specified length of time on a per line basis. The Call Trace feature, as specified in Section 18 of this tariff, differs from Call Line Identifier service in that Call Trace is activated on a per call basis.

B. Regulations

1. Subscribers initiate requests for Call Line Identifier service by contacting the Annoyance Call Center.

2. Requests for Call Line Identifier service will be evaluated by the Annoyance Call Center. The Telephone Company will trace calls when requested based upon the availability of line identification equipment.

3. Call Line Identifier service will apply per line upon request at the rates and for the time periods specified in Section 18.XX.C. following.

4. The Telephone Company does not guarantee successful call trace results when line identification equipment is placed. When call trace results are successful, the identity of the offending line subscriber will only be furnished to the appropriate law enforcement agency, pursuant to signed Disclosure Authorization by the offended subscriber.

5. In the event a customer requested call trace is unsuccessful, the customer will be given the option of changing the telephone number at no charge.

▲ Central Telephone Company of Texas dba CenturyLink concurs in the rates and regulations (T) governing this service.

ISSUED: October 3, 2011 EFFECTIVE: EFFECTIVE: March 1, 2012

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) Second Revised Sheet No. 66 Cancels First Revised Sheet No. 66

CENTRAL OFFICE SERVICE AND FEATURES

XX. CALL LINE IDENTIFIER (Continued)

B. Regulations (Continued)

6. The Telephone Company will not be liable for any damages or injuries of whatever kind to property or to any individuals, which may, in any manner, result from the provision of this service, or from any mistakes, interruptions, delays, or errors by the Telephone Company in connection with Call Line Identifier service which were not caused by the Telephone Company’s failure to maintain proper standards of maintenance and operation or by the Telephone Company’s failure to exercise reasonable supervision (i.e., willful neglect).

7. This tariff does not apply to trap and trace ordered by the state or federal courts, or to emergency situations, such as kidnapping, threatening of jurors, witnesses, or judicial officers, or similar emergencies, declared by law enforcement agency within its legal powers.

8. Any Call Line Identifier conducted under this tariff shall be at the discretion of the Telephone Company and is subject to the availability of facilities.

9. Call Line Identifier will be provided without charge for up to three administrative (N) lines associated with law enforcement and public safety organizations. (N)

C. Rates and Charges

Nonrecurring 12-Month Charge, Per 30-Day Period Period Line Initial $ 46.00 (R) $ 108.00 (I) Renewal, Each 20.00 41.00 (I)

ISSUED: April 21, 2015 EFFECTIVE: May 1, 2015 TX 15-03

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) Fourth Revised Sheet No. 67 Cancels Third Revised Sheet No. 67

CENTRAL OFFICE SERVICE AND FEATURES

XXI. CONNECTION CENTRAL BUNDLE (1) ▲ (C)

A. General

1. Connection Central Bundle is an optional business service enrollment plan that permits a customer to receive features and services for a flat monthly rate for each bundle provided. Connection Central Bundle includes the following features and services:

a. Local Exchange Service b. Rotary Hunting Line Service - optional c. Three-Way Calling with Transfer d. Caller ID with Name (includes Anonymous Call Rejection) e. Enhanced Call Waiting - optional f. Call Waiting ID - optional

B. Regulations

1. The Plan is not available with Business Individual Line Service, Centrex, ISDN Service lines, Pay Telephone Service lines, or PBX Trunks.

2. The Plan is not available to customers who are or become toll restricted. Service Connection Charges will not apply for those existing lines converted, in-place, to business exchange service due to company-initiated toll restrictions. Such customers will not be permitted to re-enroll in this Plan until such time as all associated unpaid balances are satisfactorily paid in full.

3. Customers may subscribe to a maximum of two Connection Central Bundles per location which must be billed under a single bill.

4. Service Connection Charges do not apply when:

a. A Connection Central Bundle replaces existing Local Exchange Service; b. Customers request a change from a Connection Central Bundle back to regulated Local Exchange Service; or c. New and additional Connection Central Bundle lines are added.

(1) Grandfathered service limited to lines in service at existing locations as of July 15, 2011. (N)

▲ Central Telephone Company of Texas dba CenturyLink concurs in the regulations governing this (T) service.

ISSUED: July 1, 2011 EFFECTIVE: July 15, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 6th Revised Sheet No. 68 Cancels 5th Revised Sheet No. 68

CENTRAL OFFICE SERVICE AND FEATURES

XXI. CONNECTION CENTRAL BUNDLE (3) (Continued)

C. Term Discount Plan (TDP)

1. Connection Central Bundle is available under a Term Discount Plan (TDP) for term commitments of one or two years. At the end of the TDP commitment period the customer may renew the TDP for another one or two year TDP commitment period. If the customer does not specify renewal terms in writing 90 days prior to the expiration of the TDP, the commitment period and the discount in effect at the time of expiration will automatically be extended for 12 months. The customer can terminate service at the end of the commitment period with no penalty or obligation to continue the service.

2. Rate increases or decreases will automatically be applied to the monthly term commitment rates for the remaining term of the TDP. If a Company initiated rate increase causes the services under the TDP to increase by 10% or more annually, then the customer may cancel the TDP without incurring termination liability charges provided the customer notifies the Company within 30 days after the effective date of the rate increase.

3. If customers disconnect one or both of the access lines associated with Connection Central Bundle prior to the expiration of the TDP, a termination liability charge will apply for the disconnected line(s). The termination liability charge will be a one-time charge equal to the sum of 50% of the payments that would apply for the remainder of the TDP.

4. If a customer retains the access line(s) associated with Connection Central Bundle, but discontinues any or all of the associated features and services, no termination liability charges will apply. However, all discounts for which the customer was eligible under this TDP will cease as of the date the service(s) and/or feature(s) are discontinued, and the monthly rate for the access lines(s) will default to the applicable tariffed monthly rates.

D. Rates and Charges Monthly Rate (I) (I) 1. One Year Commitment Period, per bundle $44.00 (1) (2) (3) 2. Two Year Commitment Period, per bundle 44.00 (1) (2) (3)

(1) Initial bundle - Customers must also subscribe to 1.5 Mbps (or greater) High-speed Internet under a one or two year term commitment, DSL Secure, Embarq Communications, Inc. Small Business Unlimited Solutions II long distance plan, and must purchase the Company’s non-regulated Connection Central CPE.

(2) Second bundle - Customers must also subscribe to Embarq Communications, Inc. Small Business Unlimited Solutions II long distance plan.

(3) Grandfathered service limited to lines in service at existing locations as of July 15, 2011.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) First Revised Sheet No. 69 Cancels Original Sheet No. 69

CENTRAL OFFICE SERVICE AND FEATURES

XXII. PRIMARY RATE INTERFACE (PRI) BUNDLE – BUSINESS ▲

A. General

1. PRI Bundle is an optional business service enrollment plan. This offering permits a customer to receive features and services for a flat monthly rate for each bundle provided. PRI Bundle includes the following features and services:

a. ISDN-PRI Business Service consisting of 2-Way Primary Rate Interface and 24 (T) Primary Rate Channels (T) (D) (D) b. Up to 100 Direct Inward Dialing (DID) Numbers (in blocks of 20) - Optional (T) c. ISDN-PRI Business Service Standard Features d. Incoming Call Identification (Caller ID Name and Number) (T)

B. Regulations

1. Unless specified otherwise in this section, the regulations for ISDN-PRI Business (T) Service, including Service Connection Charges, set forth in Section 25, apply in addition to the regulations herein.

2. Unless specified otherwise in this section, the regulations for DID Service, including Non-recurring and Installation Charges, set forth in Section 18, apply in addition to the regulations herein.

3. Service Connection Charges do not apply when PRI Bundle replaces existing Local Exchange Service.

4. Customers may activate all 100 DID numbers included in the bundle rate concurrent with installation of service or may activate the numbers in blocks of 20. When a customer activates fewer than 100 numbers concurrent with establishment of service, Service Connection Charges do not apply for the initial or subsequent activations of 20-number blocks (up to 100 numbers).

5. Customers may order additional DID numbers, in excess of 100 for an individual PRI Bundle, subject to availability, at the rates specified in Section 18 of this tariff. Non- recurring and Installation Charges apply for subsequent activation of numbers beyond those included in the bundle.

6. The Optional Features available for ISDN-PRI Business Service are available with PRI (T) Bundle at the rates specified in Section 25.

7. PRI Bundle is available under the term commitments of 2 years, 3 years, and 5 years. Termination Liability Charges set forth in Section 25 apply for PRI Bundle.

▲ Central Telephone Company of Texas dba CenturyLink concurs in the regulations governing this (T) service.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 70

CENTRAL OFFICE SERVICE AND FEATURES

XXII. PRIMARY RATE INTERFACE (PRI) BUNDLE - BUSINESS (Continued)

B. Regulations (Continued)

8. Unless terminated by the PRI Bundle customer or the Company, a customer will remain enrolled in the PRI Bundle, as amended from time to time, with any applicable changes in rate, for as long as the PRI Bundle continues to be offered by the Company. If any features or services in the bundle are discontinued by the customer, the remaining features and services will be charged the normal tariff rate or charge.

9. Customers enrolled in the bundle, who subsequently become subject to Company initiated toll restriction will have all existing PRI Bundle lines converted to the applicable tariff rates. Service Connection Charges will not apply for those existing lines converted, in-place, due to termination procedures. In addition, any optional services not affected by the termination procedures will convert to their applicable tariff rates. Such customers will not be permitted to re-enroll in this bundle until such time as all associated unpaid balances are satisfactorily paid in full.

C. Rates and Charges Monthly Nonrecurring Rate Charge 1. Term Commitment 2 years $729.00 $0.00 3 years 704.00 0.00 5 years 654.00 0.00

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Centurylink SECTION 18 (T) Fourth Revised Sheet No. 71 Cancels Third Revised Sheet No. 71

CENTRAL OFFICE SERVICE AND FEATURES

XXIII. MULTILINE BUNDLE (1) ▲ (T)

A. General

1. MultiLine Bundle is an optional business service enrollment plan that permits customers to receive Local Exchange Service and additional features and services for a flat monthly rate, for each MultiLine Bundle provided. Customers must subscribe to at least two MultiLine Bundles per location, which must be billed under a single invoice.

B. Regulations

1. The Plan is not available with Centrex, ISDN Service lines, Pay Telephone Service lines, or PBX Trunks.

3. Service Connection Charges as specified in Section 17 of this tariff apply for new and additional MultiLine Bundles and moves of existing MultiLine Bundles.

4. Service Connection Charges do not apply when a MultiLine Bundle replaces existing Local Exchange Service

(1) Grandfathered service limited to lines in service at existing locations as of July 15, 2011. (N)

▲ Central Telephone Company of Texas dba CenturyLink concurs in the regulations governing this (T) service.

ISSUED: July 1, 2011 EFFECTIVE: July 15, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) Fourth Revised Sheet No. 72 Cancels Third Revised Sheet No. 72

CENTRAL OFFICE SERVICE AND FEATURES

XXIII. MULTILINE BUNDLE (1) (Continued) (C)

C. Term Discount Plan (TDP)

1. MultiLine Bundle is available under a Term Discount Plan (TDP) for term commitments of one, two or three years. At the end of the TDP commitment period the customer may renew the TDP for another one, two or three year TDP commitment period. If the customer does not specify renewal terms in writing 90 days prior to the expiration of the TDP, the commitment period and the discount in effect at the time of expiration will automatically be extended for 12 months. The customer can terminate service at the end of the commitment period with no penalty or obligation to continue the service.

3. If a customer disconnects any of the access lines associated with MultiLine Bundle prior to the expiration of the TDP, there will be no termination liability charges applicable to MultiLine Bundle regulated services. A termination liability charge is only applicable should the customer also disconnect required non-regulated companion service(s).

4. Customers must retain a minimum of two MultiLine Bundles. If disconnection of any access line associated MultiLine Bundle(s) prior to the end of the TDP results in only one remaining MultiLine Bundle, that remaining bundle will default to the applicable tariffed rates for the Local Exchange Service access line or key trunk, including Rotary Hunting Line Service if the line or trunk is so equipped, plus the tariffed rates for the individual features.

5. If a customer retains the access line(s) associated with MultiLine Bundle, but discontinues any or all of the required regulated services then the associated access line(s) will default to the applicable tariffed rates for the Local Exchange Service access line or key trunk, including Rotary Hunting Line Service if the line or trunk is so equipped, plus the tariffed rates for the individual features.

(1) Grandfathered service limited to lines in service at existing locations as of July 15, 2011. (N)

ISSUED: July 1, 2011 EFFECTIVE: July 15, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 7th Revised Sheet No. 72.1 Cancels 6th Revised Sheet No. 72.1

CENTRAL OFFICE SERVICE AND FEATURES

XXIII. MULTILINE BUNDLE (2) (Continued)

D. Rates and Charges

1. Each MultiLine Bundle includes the following:

a. Business Key Trunk or Business One-Party Service b. Rotary Hunting Line Service - optional c. Three-Way Calling with Transfer - optional d. Caller ID with Name (includes Anonymous Call Rejection) - optional

Monthly Rate Month-to-Month, per bundle $46.00 (1) (2) One Year Commitment Period, per bundle 46.00 (1) (2) (I) Two Year Commitment Period, per bundle 41.00 (1) (2) Three Year Commitment Period, per bundle 36.00 (1) (2) (I)

(1) In addition to subscribing to an Embarq Communications, Inc. long distance plan for each MultiLine Bundle, customers must also subscribe to one of the following qualifying services per MultiLine Bundle location:

1) the Company’s non-regulated 1.5 Mbps (where available) or greater High-speed Internet. (In locations where 1.5 Mbps is not available, customers may alternatively subscribe to the Company’s 768 Kbps High-speed Internet or non-regulated Satellite Broadband Service) or;

2) the Company’s non-regulated Dedicated IP Service.

The qualifying service must be billed on the same invoice as the MultiLine Bundles, but may be provisioned on access lines or trunks other than the MultiLine Bundle that are billed under the same invoice.

(2) Grandfathered service limited to lines in service at existing locations as of July 15, 2011.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) First Revised Sheet No. 73 Cancels Original Sheet No. 73

CENTRAL OFFICE SERVICE AND FEATURES

XXIV. VOICE BUSINESS CONTINUITY ▲

A. General

1. Voice Business Continuity allows the subscriber to establish predetermined alternate routing plans for incoming voice traffic. Voice Business Continuity can be used as a disaster recovery service. The alternate routing plan, referred to hereafter as “Routing Plan,” is created by the subscriber working with a Company representative when Voice Business Continuity is established. The Routing Plan is then loaded into the central office which serves the customer location, where it remains dormant until activated. This service is available with T1 based voice channel service such as ISDN-PRI and Digital Trunking Service.

2. The subscriber must establish a Routing Plan for each location included in the serving arrangement for which traffic is to be rerouted. The Voice Business Continuity subscriber must then contact the Company to activate the Routing Plan(s). This will route traffic to number(s) preselected by the Voice Business Continuity subscriber. In order to restore the original call routing, the subscriber must contact the Company to deactivate the alternate routing plan.

3. Voice Business Continuity is designed to be a disaster recovery service and is not available for routine call routing such as after hours call forwarding. The Company reserves the right to deny activation if this service is used for non-emergency situations.

B. Definitions

ARRANGEMENT

Consists of one or more Routing Plans that have been identified by the subscriber.

BACKUP NUMBER

The number that calls are rerouted to when the Routing Plan is activated.

REDIRECTED NUMBER

Any subscriber number at the customer location included in the Routing Plan for which incoming calls will be rerouted when the plan is activated.

ROUTING PLAN (1) (C)

The alternate call routing plan established by the subscriber that can be activated at the subscriber’s request. The Routing Plan handles a maximum of five telephone numbers (C) at one customer location. Additional Routing Plans are required for each additional customer location.

(1) Routing Plans provisioned with more than five telephone numbers at one customer location (N) are limited to existing locations, effective December 21, 2009. (N)

▲ Central Telephone Company of Texas dba CenturyLink concurs in the rates and regulations (T) governing this service.

ISSUED: December 11, 2009 EFFECTIVE: December 21, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 74

CENTRAL OFFICE SERVICE AND FEATURES

XXIV. VOICE BUSINESS CONTINUITY (Continued)

C. Regulations

1. Voice Business Continuity is available where facilities or arrangements permit. The Company has the right to deny a request due to other operational priorities or the nature of the request.

2. The Voice Business Continuity subscriber must specify one or more primary points of contact and password which will be used by the Company representative to verify a request to activate, deactivate, or modify a subscriber’s Routing Plan.

3. If the subscriber requests a Routing Plan with three or more Backup Numbers, requests assignment of a Redirected Number with more than one Backup Number, or requires that the Routing Plan handle more than twelve simultaneous calls to the Redirected Number, the Route Complexity Charge will apply. A Route Complexity Charge may also apply for other complex scenarios as identified by the Company. Provisioning of such requests is subject to approval of the Company and acceptance of the subscriber of the additional charge prior to provisioning by the Company.

4. A subscriber must identify one Backup Number for each Redirected Number in the Routing Plan or one Backup Number for multiple Redirected Numbers in the Routing Plan.

5. Upon request of the Voice Business Continuity subscriber, the Company will work with the subscriber to test the operation of the Routing Plan after initial establishment. Also upon request by the subscriber, the Company will test normal service before initiating recovery from an activated Routing Plan.

6. After initial establishment of the Routing Plan the subscriber may change the plan for a given location up to five times per contract year, at no charge. A Plan Update Charge will apply for all subsequent changes. Changes include, but are not limited to, adding or dropping a number or changing a Backup Number(s).

7. The Voice Business Continuity subscriber is responsible for payment of usage charges (toll, expanded local, or other) for each call routed to a subscriber location not included in the same local calling area as the original subscriber location.

8. Unless the Voice Business Continuity subscriber identifies a different Interexchange Carrier (IC) for any traffic routed to an out of LATA location, the Routing Plan will use their existing IC.

9. This service is not eligible for Suspension of Service at the customer’s request as specified in Section 19 of this Tariff.

ISSUED: June 8, 2007 EFFECTIVE: June 18, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 75

CENTRAL OFFICE SERVICE AND FEATURES

XXIV. VOICE BUSINESS CONTINUITY (Continued)

C. Regulations (Continued)

10. Each of the Voice Business Continuity subscriber’s Redirected Numbers must reside in a Company central office.

11. The Voice Business Continuity subscriber is responsible in ensuring that the Backup Number(s) have adequate facilities to support the increase in call volume.

12. The activated Routing Plan will remain active until the Voice Business Continuity subscriber requests to have original call routing restored.

D. Limitation of Liability

The following provisions apply in addition to the Limitation of Liability provisions specified in Section 7 of this Tariff.

1. Voice Business Continuity is intended to allow a subscriber to reroute incoming calls. It may provide help during some network affecting problems, such as a cut cable between the end office and the subscriber’s location by rerouting incoming calls to an alternate location. However, the Company does not guarantee the availability or reliability of Voice Business Continuity in the event of a network affecting disaster. In the event of a network affecting disaster, Voice Business Continuity may function normally, may not function at all, or it may function unpredictably depending on what part of the network is affected and how serious the affect is.

2. Activation of subscriber plans will be performed on a first come, first served basis. When the subscriber requests that Voice Business Continuity be activated, every effort will be made to activate the service as rapidly as possible. However, the length of the delay between the time that the subscriber requests activation and the time that activation actually occurs depends on a number of factors including the number of other Voice Business Continuity activations being processed when a particular request is received as well as the network load at the time the Voice Business Continuity activation command is received. In the case of an area-wide crisis, if many subscribers call at the same time to request service activation, those calling last may have a considerably longer waiting period for activation to be completed. As a result, no representation is made as to the length of time it will take to implement a particular activation request.

ISSUED: June 8, 2007 EFFECTIVE: June 18, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 76

CENTRAL OFFICE SERVICE AND FEATURES

XXIV. VOICE BUSINESS CONTINUITY (Continued)

D. Limitation of Liability (Continued)

The following provisions apply... (Continued)

3. In no event shall the Company, nor its agents, be liable for any losses or damages of any kind resulting from the unavailability of its equipment or facilities or for any act, omission, or failure of performance by the Company, or its employees, or agents, in connection with this Tariff. Neither the Company, nor its agents, shall be responsible for calls that cannot be completed as a result of repair or maintenance difficulties on Company facilities and equipment, nor on equipment owned or leased by the subscriber.

4. Neither the Company, nor its agents, assume liability for any loss of revenues, increased costs, expenses, liabilities, or inconvenience experienced by the subscriber due to any unsatisfactory performance of Voice Business Continuity. Further, neither the Company, nor its agents, shall assume any liability for consequential, indirect, or incidental damages.

E. Restrictions

A Voice Business Continuity alternate routing number cannot be a subscriber Redirected Number in another active routing plan within the LATA.

F. Rates and Charges

1. Application of Rates

(a) The Voice Business Continuity Nonrecurring Charge and Monthly Rate apply for each Routing Plan established by the subscriber.

ISSUED: June 8, 2007 EFFECTIVE: June 18, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 77

CENTRAL OFFICE SERVICE AND FEATURES

XXIV. VOICE BUSINESS CONTINUITY (Continued)

F. Rates and Charges (Continued)

1. Application of Rates (Continued)

(b) The Route Complexity Charge may apply as deemed by the Company and is dependent upon the complexity of the Routing Plan. Charges will be communicated to and accepted by the customer prior to establishing the Routing Plan.

(c) A Voice Business Continuity monthly rate will apply per subscriber location based on the length of customer commitment will be 12, 24, 36, and 60 months. Subscribers who terminate prior to the expiration of the commitment period will incur termination charges. Termination charges will be calculated by multiplying the number of months remaining in the commitment period times 50 percent of the applicable monthly rate for each Routing Plan prematurely disconnected.

(d) The Plan Update Charge applies for subscriber-initiated changes to a Routing Plan in excess of the five changes allowed per contract year. Also, a subscriber may incur additional charges if requested changes to the Routing Plan warrant a Route Complexity Charge.

(e) Customers who request activation of a Routing Plan within three business days of establishing the service will incur a Priority Setup Request Charge, although there is no guarantee that the Company will meet the requested date.

(f) Service Connection Charges as specified in Section 17 of this Tariff will not apply.

ISSUED: June 8, 2007 EFFECTIVE: June 18, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 78

CENTRAL OFFICE SERVICE AND FEATURES

XXIV. VOICE BUSINESS CONTINUITY (Continued)

F. Rates and Charges (Continued)

2. Rates

(a) Voice Business Continuity, per subscriber location

Monthly Nonrecurring Rate Charge

12 month rate $65.00 $500.00 24 month rate 60.00 500.00 36 month rate 50.00 500.00 60 month rate 40.00 500.00

(b) Priority Setup Request Charge

Nonrecurring Charge

$300.00

Nonrecurring Charge

$100.00

(d) Plan Update Charge

Nonrecurring Charge

$100.00

ISSUED: June 8, 2007 EFFECTIVE: June 18, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 79

CENTRAL OFFICE SERVICE AND FEATURES

XXV. HOSTED MULTILINE BUNDLE ▲

A General

1. Hosted MultiLine Bundle is an optional business service enrollment plan that permits customers to receive Local Exchange Service and additional features and services for a flat monthly rate, for each Hosted MultiLine Bundle provided. Each Hosted MultiLine Bundle includes one Centrex Service II access line. Customers must subscribe to a minimum of two and a maximum of nine Hosted MultiLine Bundles per location, which must be billed under a single invoice. Each Hosted MultiLine Bundle includes:

(a) Centrex Service II access line (b) Centrex Service II Standard Features (see Section 18.XI.) (c) Caller ID with Name (includes Anonymous Call Rejection) (d) Call Waiting ID (e) Return Call (f) Distinctive Ringing/Ring Again (g) Call Park/Call Pick-Up (h) Multiple Appearance Directory Number (MADN)

B Regulations

1. The Plan is provided subject to the availability of facilities and central office equipment as determined by the Company.

2. The Plan is not available for lines that terminate into Key or PBX systems. Customers must purchase the Company’s non-regulated Meridian M6320 digital set (CPE) for each Hosted MultiLine Bundle.

3. Directory Listings are furnished in accordance with the rates and regulations specified in Section 5 of this tariff.

4. The Plan is not available to customers who are or become toll restricted. Service Connection Charges will not apply for those existing lines converted, in-place, to business exchange service due to company-initiated toll restrictions. Such customers will not be permitted to re-enroll in this Plan until such time as all associated unpaid balances are satisfactorily paid in full.

5. Service Connection Charges do not apply when:

(a) A Hosted MultiLine Bundle replaces existing Local Exchange Service; (b) Customers request a change from a Hosted MultiLine Bundle back to regulated Local Exchange Service; or (c) New and additional Hosted MultiLine Bundle lines are added.

▲ Central Telephone Company of Texas dba Embarq concurs in the rates and regulations governing this service.

ISSUED: September 8, 2008 EFFECTIVE: September 22, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 18

Original Sheet No. 80

CENTRAL OFFICE SERVICE AND FEATURES

XXV. HOSTED MULTILINE BUNDLE (Continued)

B Regulations (Continued)

6. The quality of transmission for calls utilizing call forwarding or conferencing may vary depending on the distance and routing involved.

7. Directory Assistance charges, as specified in Section 5 of this tariff, apply to Hosted MultiLine Bundle.

8. Call Forward features shall not be used to extend calls on a planned and continuing basis to intentionally avoid the payment in whole or in part of message toll charges that would regularly be applicable between the station originating the call and the station to which the call is transferred nor shall it be used to simulate rotary service from the Company central office. Only one call forwarding arrangement, consisting of a single calling path, may be provided per Hosted MultiLine Bundle for which the customer subscribes to a Call Forward feature.

9. Suspension of Service at the customer’s request, as specified in Section 19 of this tariff, is not allowed for Hosted MultiLine Bundle.

10. The assignment of telephone numbers and the sequence of the numbers assigned to a Hosted MultiLine Bundle are made at the discretion of the Company. The Company does not guarantee to provide telephone numbers arranged in a consecutive manner. If the customer requests telephone numbers under a special numbering arrangement to be terminated in a Hosted MultiLine Bundle customer group, then additional recurring and non-recurring charges may apply as determined under an ICB arrangement.

11. The Company shall not be liable, directly or indirectly for damages, unless caused by gross negligence of the Company in failing to maintain reasonable standards of maintenance and inspection and exercise reasonable supervision.

ISSUED: September 8, 2008 EFFECTIVE: September 22, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) 1st Revised Sheet No. 81 Cancels Original Sheet No. 81

CENTRAL OFFICE SERVICE AND FEATURES

XXV. HOSTED MULTILINE BUNDLE - GRANDFATHERED (1) (Continued) (C)

C. Term Discount Plan (TDP)

1. Hosted MultiLine Bundle is available under a Term Discount Plan (TDP) for term commitments of one or three years. At the end of the TDP commitment period the customer may renew the TDP for another one or three year TDP commitment period. If the customer does not specify renewal terms in writing 90 days prior to the expiration of the TDP, the commitment period and the discount in effect at the time of expiration will automatically be extended for 12 months. The customer can terminate service at the end of the commitment period with no penalty or obligation to continue the service.

3. If a customer disconnects any or all of the access lines associated with Hosted MultiLine Bundle prior to the expiration of the TDP, a termination liability charge will apply for the disconnected access line(s). The termination liability charge will be a one-time charge equal to the sum of 50% of the remaining payments that would apply for the remainder of the TDP.

4. Customers must retain a minimum of two Hosted MultiLine Bundles. If disconnection of any access line associated Hosted MultiLine Bundle(s) prior to the end of the TDP results in only one remaining Hosted MultiLine Bundle, that remaining bundle will default to the applicable tariffed rates for the Local Exchange Service access line, including Rotary Hunting Line Service if the line is so equipped, plus the tariffed rates for the individual features.

5. If a customer retains the access line(s) associated with Hosted MultiLine Bundle, but discontinues any or all of the required services prior to the expiration of the TDP, the termination liability charge will be a one-time charge equal to the sum of 50% of the remaining payments that would apply for the remainder of the TDP for each Hosted MultiLine Bundle for which the required services were discontinued, and the associated access line(s) will default to the applicable tariffed rates for the Local Exchange Service access line, including Rotary Hunting Line Service if the line is so equipped, plus the tariffed rates for the individual features.

(1) Grandfathered service limited to lines in service at existing locations as of July 20, 2017. (N)

ISSUED: July 6, 2017 EFFECTIVE: July 20, 2017 TX17-08 (UT)

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) 1st Revised Sheet No. 82 Cancels Original Sheet No. 82

CENTRAL OFFICE SERVICE AND FEATURES

XXV. HOSTED MULTILINE BUNDLE - GRANDFATHERED (1) (Continued) (C)

D. Rates and Charges

1. Monthly Recurring Charges Monthly Rate

One Year Commitment Period, per bundle $33.00 (2) (T) Three Year Commitment Period, per bundle 31.00 (2) (T)

(1) Grandfathered service limited to lines in service at existing locations as of July 20, 2017. (N)

(2) Customer must also subscribe to an Embarq Communications, Inc. long distance plan per bundle (T) and the Company’s non-regulated Elite Voicemail per bundle.

ISSUED: July 6, 2017 EFFECTIVE: July 20, 2017 TX17-08 (UT)

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 Second Revised Sheet No. 83 Cancels First Revised Sheet No. 83

CENTRAL OFFICE SERVICE AND FEATURES

XXVI. SOLUTIONS II – BUSINESS (1) ▲ (C)

A. General

1. Solutions II is an optional business service enrollment plan that permits a customer to receive Business Local Exchange Service and additional features and services for a flat monthly rate, for each Solutions II business line.

B. Regulations

1. Solutions II customers may terminate their enrollment in the plan at any time upon notice to the Company.

2. Unless terminated by the Solutions II customer or the Company, a customer will remain enrolled in the Plan, as amended from time-to-time, with any applicable changes in rate, for as long as the Plan continues to be offered by the Company.

3. The Plan is not available with Centrex, ISDN Service lines, Payphone Line Service lines, or PBX Trunks.

5. No more than nine (9) business lines can be enrolled with the Solutions II option(s) for each customer location or per account, except as specified following. There is no per location or per account limit on the number of business lines that can be enrolled with Basic Offer Bundle.

6. Service Connection Charges, as described in Section 17 of this tariff, apply to requests for new and additional Solutions II lines, and for moves of existing lines.

7. Service Connection Charges do not apply when:

a. Solutions II replaces existing Local Exchange Service or; b. Customers request a change from Solutions II back to Local Exchange Service.

8. Solutions II customers are not eligible for promotional offerings associated with the Custom Calling Features and ExpressTouch Services included in the Plan, unless specifically provided for in a promotional offering.

(1) Grandfathered service limited to lines in service at existing locations as of July 15, 2011. (N)

▲ Central Telephone Company of Texas dba CenturyLink concurs in the regulations governing this service.

ISSUED: July 1, 2011 EFFECTIVE: July 15, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) First Revised sheet No. 84 Cancels Original Sheet No. 84

CENTRAL OFFICE SERVICE AND FEATURES

XXVI. SOLUTIONS II – BUSINESS (1) (Continued) (C)

B. Regulations (Continued)

9. Service Connection Charges will not apply for those existing lines converted, in-place, to business exchange service due to company-initiated toll restrictions. In addition, any optional services not affected by the toll restriction will convert to their applicable tariff rates. Such customers will not be permitted to re-enroll in this Plan until such time as all associated unpaid balances are satisfactorily paid in full.

10. Prices of the individual services included in these packages may be higher or lower than the packaged offering. These packages are available for as long as the customer retains all of the required services. If a customer discontinues any of the services that are required to be eligible for a package, the non-discounted rates for each remaining individual service that was part of the packaged offering will apply.

(1) Grandfathered service limited to lines in service at existing locations as of July 15, 2011. (N)

ISSUED: July 1, 2011 EFFECTIVE: July 15, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 (T) First Revised Sheet No. 85 Cancels Original Sheet No. 85

CENTRAL OFFICE SERVICE AND FEATURES

XXVI. SOLUTIONS II – BUSINESS (1) (Continued) (C)

C. Term Discount Plan (TDP)

1. Solutions II is available under a Term Discount Plan (TDP) for term commitments of one, two or three years. At the end of the TDP commitment period the customer may renew the TDP one, two or three year TDP commitment period. If the customer does not specify renewal terms in writing 90 days prior to the expiration of the TDP, the commitment period and the monthly rate in effect at the time of expiration will automatically be extended for 12 months. The customer can terminate service at the end of the commitment period with no penalty or obligation to continue the service.

3. For Complete Business Bundle II, if a customer disconnects any of the access lines prior to the expiration of the TDP, there will be no termination liability charges applicable to regulated services. A termination liability charge is only applicable should the customer also disconnects the Company’s non-regulated High-speed Internet when originally purchased as an accompanying qualifier service prior to the expiration of the associated TDP.

For Connected II and Economy Bundle II B, if a customer disconnects any of the access lines prior to the expiration of the TDP, a termination liability charge will apply for the disconnected access line(s). The termination liability charge will be a one-time charge of $50.00 for each access line associated with Connected II and/or Economy Bundle II B that is prematurely disconnected.

4. If a customer retains the access line(s) associated with a Solutions II business package, but discontinues any or all of the associated regulated features and services, no termination liability charges will apply. However, all discounts for which the customer was eligible under this TDP will cease as of the date the service(s) and/or feature(s) are discontinued, and the monthly rate for the access lines(s) will default to the applicable tariffed monthly rates.

(1) Grandfathered service limited to lines in service at existing locations as of July 15, 2011. (N)

ISSUED: July 1, 2011 EFFECTIVE: July 15, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 7th Revised Sheet No. 86 Cancels 6thRevised Sheet No. 86

CENTRAL OFFICE SERVICE AND FEATURES

XXVI. SOLUTIONS II – BUSINESS (2) (Continued)

D. Rates and Charges

1. Connected II (1) (2)

Business Key Trunk or Business One-Party Service Rotary Hunting Line Service (optional) Enhanced Call Waiting Three-Way Calling or Three-Way Calling with Transfer Call Forwarding Return Call Repeat Dialing Speed Dial - 8 Caller ID with Name (includes Anonymous Call Rejection) Call Forward No Answer-Fixed Call Forward Busy-Fixed Call Waiting ID

Monthly Rates

Month-to- Term Commitments Month, 1 Year, 2 Years, 3 Years, per bundle per bundle per bundle per bundle All Exchanges $54.00 $54.00 $54.00 $54.00 (I)

(1) Customers must also subscribe to CenturyLink Communications, Inc. Small Business Unlimited Solutions II long distance plan (Option 2 – Extended Calling USA). (T)

(2) Grandfathered service limited to lines in service at existing locations as of July 15, 2011.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 6th Revised Sheet No. 87 Cancels 5th Revised Sheet No. 87

CENTRAL OFFICE SERVICE AND FEATURES

XXVI. SOLUTIONS II – BUSINESS (3) (Continued)

D. Rates and Charges (Continued)

2. Economy Bundle II B (1) (3)

Business One-Party Service Choice of three of the following: Call Forward No Answer - Fixed plus Call Forward Busy - Fixed Enhanced Call Waiting (2) Caller ID with Name (includes Anonymous Call Rejection) (2) Three-Way Calling Return Call

Monthly Rates

Month-to- Term Commitments Month, 1 Year, 2 Years, 3 Years, per bundle per bundle per bundle per bundle All Exchanges $46.00 $46.00 $46.00 $46.00 (I)

(1) Customers must also subscribe to an Embarq Communications, Inc. long distance plan.

(2) When Enhanced Call Waiting and Caller ID with Name are the selected features, Call Waiting ID is also provided.

(3) Grandfathered service limited to lines in service at existing locations as of July 15, 2011.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 6th Revised Sheet No. 88 Cancels 5th Revised Sheet No. 88

CENTRAL OFFICE SERVICE AND FEATURES

XXVI. SOLUTIONS II – BUSINESS (2) (Continued)

D. Rates and Charges (Continued)

3. Complete Business Bundle II (1) (2)

Business Key Trunk or Business One-Party Service Rotary Hunting Line Service (optional) Enhanced Call Waiting Three-Way Calling or Three-Way Calling with Transfer Call Forwarding Return Call Repeat Dialing Speed Dial 8 Caller ID with Name (includes Anonymous Call Rejection) Call Waiting ID Call Forward No Answer-Fixed Call Forward Busy-Fixed

Monthly Rates

Month-to- Term Commitments Month, 1 Year, 2 Years, 3 Years, per bundle per bundle per bundle per bundle All Exchanges $46.00 $46.00 $46.00 $46.00 (I)

(1) Customers must also subscribe to Embarq Communications, Inc. Small Business Unlimited Solutions II long distance plan (Option 2 – Extended Calling USA). In addition, customers must also subscribe to 1.5 Mbps (or greater) High-speed Internet.

(2) Grandfathered service limited to lines in service at existing locations as of July 15, 2011.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 4th Revised Sheet No. 89 Cancels 3rd Revised Sheet No. 89

CENTRAL OFFICE SERVICE AND FEATURES

XXVI. SOLUTIONS II – BUSINESS (2) (Continued)

D. Rates and Charges (Continued)

4. Basic Offer Bundle (1) (2)

Business Key Trunk or Business One-Party Service Rotary Hunting Line Service (optional) Caller ID with Name (includes Anonymous Call Rejection) Enhanced Call Waiting Call Waiting ID Three-Way Calling with Transfer Call Forwarding Call Forward No Answer-Fixed Call Forward Busy-Fixed Return Call Repeat Dialing Selective Call Rejection

Monthly Rates

Month-to- Term Commitments Month, 1 Year, 2 Years, 3 Years, per bundle per bundle per bundle per bundle All Exchanges $50.00 $50.00 $46.00 $41.00 (I)

(1) Customers must also subscribe to the Company’s non-regulated 1.5 Mbps (where available) or greater High-speed Internet under a one, two or three year term commitment with the initial bundle at each customer location. In locations where 1.5 Mbps is not available, customers may alternatively subscribe to the Company’s 768 Kbps High-speed Internet or non-regulated Satellite Broadband Service.

(2) Grandfathered service limited to lines in service at existing locations as of July 15, 2011.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18

Original Sheet No. 90

CENTRAL OFFICE SERVICE AND FEATURES

XXVII. BUSINESS ASSIST ADVANTAGE PLANS ▲

A. General

1. Business Assist Advantage Plans are optional business service enrollment plans that permit customers to receive flat rated Local Exchange Service plus features and services for a flat monthly rate, for each Business Assist Advantage Plan business line provided.

B. Regulations

1. Business Assist Advantage Plan customers may terminate their enrollment in the plan at any time upon notice to the Company.

2. Unless terminated by the Business Assist Advantage Plan customer or the Company, a customer will remain enrolled in the plan, as amended from time-to-time, with any applicable changes in rate, for as long as the plan continues to be offered by the Company.

3. The plan is not available with Business ISDN-BRI Service lines, Payphone Line Service, to customers who are or become toll restricted. Rotary Hunting Line Service is not available in conjunction with the Plan unless Rotary Hunting Line Service is included in a specific Business Assist Advantage Plan Package. The Plan cannot terminate to a PBX or any other line trunking device, unless indicated for a specific Business Assist Advantage Plan Package.

4. A customer may subscribe to a maximum of ten (10) Business Assist Advantage Plan business lines for each customer location, except as specified following. There is no per location limit on the number of business lines that can be enrolled with Business Assist Basic Plan or Business Assist Basic Plan Plus.

5. Service Connection Charges, as described in Section 17 of this tariff, apply for new and additional Business Assist Advantage Plan lines, and moves of existing lines.

6. Service Connection Charges do not apply when Business Assist Advantage Plan replaces existing Local Exchange Service. Service Connection charges do apply when Customers request a change from a Business Assist Advantage Plan option back to Local Exchange Service.

7. Business Assist Advantage Plan customers are not eligible for promotional offerings associated with the Custom Calling Services and/or ExpressTouch features included in the plan, unless specifically provided for in a promotional offering.

8. Service Connection Charges will not apply for those existing lines converted, in-place, to business exchange service due to company-initiated toll restrictions. In addition, any optional services not affected by the toll restriction will convert to their applicable tariff rates. Such customers will not be permitted to re-enroll in this Plan until such time as all associated unpaid balances are satisfactorily paid in full.

▲ Central Telephone Company of Texas dba CenturyLink concurs in the regulations governing this service.

ISSUED: July 1, 2011 EFFECTIVE: July 15, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18

Original Sheet No. 91

CENTRAL OFFICE SERVICE AND FEATURES

XXVII. BUSINESS ASSIST ADVANTAGE PLANS (Continued)

B. Regulations (Continued)

9. Prices of the individual services included in the Business Assist Advantage Plan may be higher or lower than the packaged offering. Business Assist Advantage Plan is available for as long as the customer retains all of the required services. If a Customer discontinues any of the services that are required to be eligible for the Plan, the non- discounted rates for each remaining individual service that was part of the packaged offering will apply.

C. Term Discount Plan (TDP)

1. General

a. A Term Discount Plan (TDP) provides Business Assist Advantage Plan customers with discounted rates when the customer(s) subscribe to a one, two or three-year TDP.

b. Rate increases or decreases will automatically be applied to the monthly term plan rates for the remaining term of the TDP. If a Company initiated rate increase causes the services under the TDP to increase by 10% or more annually, then the customer may cancel the TDP without incurring termination liability charges provided the customer notifies the Company within 30 days after the effective date of the rate increase.

2. Termination Liability Charges

If a customer who subscribes to a Business Assist Advantage Plan discontinues service prior to the end of the commitment period, there will be no termination liability charges applicable for the regulated portion(s) of the Business Assist Advantage Plan.

3. Discounts

The following discount applies for each occurrence of the monthly recurring charges applicable for the service to which the customer is subscribed. Usage charges are not discounted. The discount applies for the initial and each additional bundle at the same location.

One Year Two Years Three Years 10% 15% 20%

Upon expiration of the customer’s TDP, the discount will expire and the customer will be charged at the prevailing monthly rates unless the customer renews or signs up for a new TDP.

ISSUED: July 1, 2011 EFFECTIVE: July 15, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 4th Revised Sheet No. 92 Cancels 3rd Revised Sheet No. 92

CENTRAL OFFICE SERVICE AND FEATURES

XXVII. BUSINESS ASSIST ADVANTAGE PLANS (Continued)

D. Rates and Charges

1. Business Assist Advantage Plan

Flat Rate Individual Business Line or Key Trunk Rotary Hunting Line Service (optional) Choice of available Custom Calling and/or ExpressTouch Features

Monthly Rates Initial bundle, per location (1) $60.00 (I) 2nd through 10th bundle (per bundle), per location 49.00 (I)

2. Unlimited Business Assist Advantage Plan (2)

Flat Rate Individual Business Line or Key Trunk Rotary Hunting Line Service (optional) Choice of available Custom Calling and/or ExpressTouch Features

Monthly Rates (I) Initial bundle, per location (1) 66.00 (I) 2nd through 10th bundle (per bundle), per location 45.00

(1) When customers also subscribe to the Company’s non-regulated Voicemail, a $2.50 discount is applied to the monthly rate.

(2) Customers must also subscribe to CenturyLink Communications, Inc. long distance Business (T) Unlimited, a Business Assist Advantage Plan. Customers may subscribe to Optional Extended Metropolitan Service (EMS) and Optional Extended Area Service (OEAS), where available as specified in Local Exchange Tariff Section A, for a discounted rate of $5.00 per month. OEMS NPA/NXX is required.

ISSUED: September 1, 2020 EFFECTIVE: November 13, 2020 TX2020-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 1st Revised Sheet No. 93 Cancels Original Sheet No. 93

CENTRAL OFFICE SERVICE AND FEATURES

XXVIII. PREPAID LOCAL TELEPHONE SERVICE PACKAGES ▲- GRANDFATHERED(1) (C)

A. General ▲

Prepaid Local Telephone Service (PLTS) Packages is a residential payment plan where the Customer agrees to prepay the first month’s service for an amount equal to one month’s billing. Service includes, but is not limited to, a monthly service fee, optional service fees and applicable taxes. If the Customer wishes to receive service after the first month, the Customer agrees to prepay an amount equal to one month’s billing which includes all services contracted for by the Customer at the time of application, taxes, fees and charges. Taxes, fees and charges as well as charges for Optional Services will be itemized separately on the Customer’s monthly statement.

Customers will be sent a monthly statement for service during the following month. The statement will be mailed to the customer approximately fifteen days prior to the date on the statement. The customer must pay at the retail location where service was initially established or may call in to pay or pay in advance to avoid disconnection.

B. Regulations ▲

1. Customers who are unable to pay the required charges to maintain their present local service may activate a PLTS Packages plan.

2. New customers who do not qualify for local service due to a poor credit history may subscribe to PLTS Packages.

3. Service Connection Charges do not apply for installation of PLTS Packages.

4. The monthly rate for PLTS Packages shall be in addition to any surcharges and fees established or authorized by a government entity, including but not limited to 911, subscriber line charge, sales tax and municipal fees.

5. Customers are entitled to DA call allowances. All charges for additional Directory Assistance inquiries as specified in Section 5.XI. of this Tariff must be paid in full when the next month’s prepayment for PLTS Packages is remitted.

6. To prevent any additional charges, subscribers to PLTS Packages will be required to have mandatory toll blocking and pay-per-use blocking placed on their telephone line and will not be permitted to originate direct dialed 1+ or 0-/0+ toll services or caller-paid information services. It is the customer's responsibility not to make or receive calls for which additional charges are billed to the customer's telephone number. Subscribers to PLTS Packages will have access to Directory Assistance, toll-free numbers, 911 service and dual party relay service.

(1) Effective December 30, 2017, this service is grandfathered. Availability to current customers (N) is limited to lines in service at existing locations. (N)

▲ Central Telephone Company of Texas dba CenturyLink concurs in the regulations governing this service.

ISSUED: December 19, 2017 EFFECTIVE: December 30, 2017 TX 17-14(UT)

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 1st Revised Sheet No. 94 Cancels Original Sheet No. 94

CENTRAL OFFICE SERVICE AND FEATURES

XXVIII. PREPAID LOCAL TELEPHONE SERVICE PACKAGES (Continued) – GRANDFATHERED(1) (C)

B. Regulations (Continued)

7. A primary directory listing is provided with PLTS Packages. Customers may subscribe to Non-published or Non-listed Telephone Numbers as specified in Section 5 of this tariff on a prepaid basis.

8. Except as is specified in this section, no other tariffed services and features are available with PLTS Packages.

9. Customers who subscribe to PLTS Packages have the ability to dial the Company’s customer service and may report service problems to the Company seven days a week.

10. The Company may disconnect PLTS Packages service for which prepayment was made, with notice, for any of the following reasons:

a. Use of the service in a manner that interferes with the service of others b. Where a known dangerous condition exists

C. RATES AND CHARGES

Monthly Rate

1. PLTS Bundle (1) $39.95 (C) Residence Local Exchange Service Enhanced Call Waiting Caller ID with Name (includes Anonymous Call Rejection) Call Forwarding Blocking (includes 900/976 Blocking, 3rd Party/Collect Call Blocking, Per Line Blocking, Call Trace Blocking, 3-Way Blocking, Call Return & Repeat Dial Blocking) Non-Published Telephone Number service (optional)

2. Prepaid Pure Broadband Bundle (1) (2) 15.00 (C)(T) Residence Local Exchange Service Outbound Call Block Feature Non-Published Telephone Number service Billed Number Screening (optional)

(1) Effective December 30, 2017, this service is grandfathered. Availability to current customers (N) is limited to lines in service at existing locations. (N)

(2) Customers must also subscribe to the Company’s prepaid 1.5 Mbps (or greater) High-speed (T) Internet.

ISSUED: December 19, 2017 EFFECTIVE: December 30, 2017 TX 17-14(UT)

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 First Revised Sheet No. 95 Cancels Original Sheet No. 95

CENTRAL OFFICE SERVICE AND FEATURES

XXIX. CORE CONNECT ▲

A. Description

1. CORE CONNECT and CORE CONNECT Lite are optional enrollment plans that permit (N) business customers who subscribe to qualifying products and services to receive Local Exchange Service and additional features and services for a flat monthly rate. (D) (D)

2. CORE CONNECT customers must subscribe to a qualifying long distance plan and to the Company’s non-regulated High-speed Internet (HSI) service. CORE CONNECT is (T) available under month to month, one year, two-year or three-year term plans. (T)

CORE CONNECT Lite customers must subscribe to the Company’s non-regulated (N) High-speed Internet (HSI) service up to 3 Mbps. CORE CONNECT Lite is available on a one year, two-year or three-year term plan. Service and features available with CORE CONNECT Lite are shown in 18.XXIX.A.4 following. (N)

3. CORE CONNECT includes the following services and features:

• Flat Rate Individual Business Line or Key Trunk Service

• Rotary Hunting Line Service (optional)

• Unlimited expanded local calling (where available)

• Choice of the following features and services:

Caller ID with Name (includes Anonymous Call Rejection) Call Forwarding Call Forward Busy-Fixed Call Forward No Answer-Fixed Call Forward Remote Activation Enhanced Call Waiting Call Waiting ID Three-Way Calling Three-Way Calling with Transfer Return Call SignalRing Repeat Dialing Message Waiting Voicemail (1)

(1) Deregulated service

▲ Central Telephone Company of Texas dba CenturyLink concurs in the regulations governing this service.

ISSUED: March 22, 2013 EFFECTIVE: April 1, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18

Original Sheet No. 95.1

CENTRAL OFFICE SERVICE AND FEATURES

XXIX. CORE CONNECT (Continued)

A. Description (Continued)

4. CORE CONNECT Lite includes the following services and features:

• Flat Rate Individual Business Line or Key Trunk Service

• Rotary Hunting Line Service (optional)

• Choice of the following features and services:

(1) Deregulated service

ISSUED: March 22, 2013 EFFECTIVE: April 1, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 First Revised Sheet No. 96 Cancels Original Sheet No. 96

CENTRAL OFFICE SERVICE AND FEATURES

XXIX. CORE CONNECT (Continued)

B. Regulations

1. CORE CONNECT customers must subscribe to the Embarq Communications, Inc. Business Assist Advantage - Business Unlimited long distance plan for each CORE CONNECT line or trunk subscribed. The Embarq Communications, Inc. Business (N) Assist Advantage – Business Unlimited long distance plan is not available with CORE CONNECT Lite. (N)

Customers must also subscribe to the Company’s non-regulated 1.5 Mbps or greater High-speed Internet at each CORE CONNECT location. In locations where 1.5 Mbps is not available, customers may alternatively subscribe to the Company’s non-regulated 768 Kbps HSI. These qualifying services must be billed on the same invoice as CORE CONNECT, but may be provisioned on access lines or trunks other than CORE CONNECT

2. Customers may subscribe to a maximum of ten (10) CORE CONNECT business lines at each customer location.

3. There is no minimum service period for CORE CONNECT. Customers who discontinue services within thirty days after establishment of service will be charged only for the number of days CORE CONNECT was in service.

4. CORE CONNECT lines cannot terminate into a PBX or other line trunking device except as otherwise indicated herein.

5. Components of CORE CONNECT will be converted to ala carte rates for the remaining services if customers remove any of the qualifying services.

6. All terms and conditions specified elsewhere for the respective services/features requested as part of this plan shall apply.

7. Services selected as part of this plan can only be provided where technically available and compatible with other services the customer may choose to order.

8. CORE CONNECT cannot be combined with any other discounts unless otherwise specified.

9. This plan is not available to customers who are or become toll restricted. Service Connection Charges will not apply for those existing lines converted, in-place, to business exchange service due to company-initiated toll restrictions. Such customers will not be permitted to re-enroll in this plan until such time as all associated unpaid balances are satisfactorily paid in full.

ISSUED: March 22, 2013 EFFECTIVE: April 1, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18

Original Sheet No. 97

CENTRAL OFFICE SERVICE AND FEATURES

XXIX. CORE CONNECT (Continued)

C. Term Discount Plan

1. A Term Discount Plan (TDP) provides customers with discounts when the customer subscribes to CORE CONNECT under a one, two or three-year term agreement.

2. Any CORE CONNECT line(s) added subsequent to establishment of a TDP must be added under a separate TDP commitment period.

3. The rates and discounts in effect when customers subscribe to CORE CONNECT under a TDP will apply until expiration of that TDP. CORE CONNECT lines that are subsequently added under a separate TDP will receive the tariffed rates and discounts in effect when those lines are added.

4. Upon expiration of a TDP, the TDP discounts specified in E. following will expire, and the customer will be charged at the then prevailing monthly rate. If the customer renews the TDP or signs up for a new TDP, the tariffed rates and discounts then in effect will apply for the new or renewed TDP.

5. If the Company terminates service for cause or if the customer discontinues the service in whole or in part without cause prior to the expiration date, no termination liability charges will apply for the regulated portion(s) of CORE CONNECT. However, if customers remove any of the qualifying services prior to the TDP expiration date, the remaining components of CORE CONNECT will be converted to ala carte rates and the TDP discount will not apply.

ISSUED: December 6, 2011 EFFECTIVE: December 16, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 First Revised Sheet No. 98 Cancels Original Sheet No. 98

CENTRAL OFFICE SERVICE AND FEATURES

XXIX. CORE CONNECT (Continued)

D. Rates and Charges

1. The monthly rates include the Local Exchange Service, flat rate EAS, and features only. These rates do not include the monthly charges for the qualifying long distance plan or HSI.

2. Service Connection Charges, as described in Section 17 apply for new and additional CORE CONNECT lines, and moves of existing lines. Service Connection Charges may be waived for customers who move services from another telecommunications service provider to CORE CONNECT under a one, two or three-year TDP.

3. Service Connection Charges do not apply when CORE CONNECT replaces existing Local Exchange Service. Service Connection Charges do apply when Customers request a change from CORE CONNECT back to Local Exchange Service.

4. The following rates apply in addition to the monthly rates applicable for companion long distance and HSI services.

Monthly Rate (1) (2) CORE CONNECT/ “A” “B” “C” (N) CORE CONNECT Lite Exchanges Exchanges Exchanges (N)

Initial bundle, per location $60.00 $70.00 $80.00

2nd through 10th bundle 30.00 40.00 50.00 (each), per location

E. TDP Discounts

The following discounts will apply to the monthly rates specified in D.4. preceding for each CORE CONNECT bundle under a TDP.

Monthly Discount, per bundle Commitment Period 2nd through 10th bundle Initial bundle (each) One-Year Term Plan No discount $ 5.00 Two-Year Term Plan No discount 7.50 Three-Year Term Plan No discount 10.00

(1) See F. following for listing of “A”, “B”, and “C” exchange.

(2) Customers may subscribe to Optional Extended Metropolitan Service, where available as specified in Section A of the Company’s Local Exchange Tariff, for a discounted rate of $5.00 per month. MCA NPA/NXX is required.

ISSUED: March 22, 2013 EFFECTIVE: April 1, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18

Original Sheet No. 99

CENTRAL OFFICE SERVICE AND FEATURES

XXIX . CORE CONNECT (Continued)

F. “A”, “B”, and “C” Exchange Classifications

1. “A” Exchanges

COOPER

2. “B” Exchanges

ATHENS KOON CREEK PALESTINE TROUP COMMERCE MARTINS MILLS RICHARDS TUCKER GATESVILLE NECHES

3. “C” Exchanges

ANDERSON GROESBECK MILLSAP POTTSVILLE ARP HAMILTON MONTALBA PRICE BREMOND HICO MURCHISON RUNAWAY BAY BRIDGEPORT JONESBORO NAVASOTA SANTO BROWNSBORO JOPLIN NEW LONDON SHIRO BULLARD KAUFMAN OVERTON STEPHENVILLE CAYUGA KEMP PALO PINTO TENNESSEE COLONY CHANDLER KERENS PARADISE THORNTON DUBLIN KOSSE PAYNE SPRINGS TOOL SEVEN POINTS EUSTACE LAKE PALESTINE PERRIN TRINIDAD FLAT MAYBANK PLANTERSVILLE WASHINGTON FRANSTON MALAKOFF POSSUM KINGDOM GRADFORD

ISSUED: December 6, 2011 EFFECTIVE: December 16, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18

First Revised Sheet No. 100** Cancels Original Sheet No. 100**

CENTRAL OFFICE SERVICE AND FEATURES

XXIX. CORE CONNECT (Continued) (Z)

E. Rates and Charges (Continued)

4. Core Connect 2 LITE

Flat Rate Individual Business Line or Key Trunk Service Rotary Hunting Line Service (optional) Choice of the following features and services: Caller ID with Name (includes Anonymous Call Rejection) Call Forwarding Call Forward Busy-Fixed Call Forward No Answer-Fixed Call Forward Remote Activation Enhanced Call Waiting Call Waiting ID Three-Way Calling Three-Way Calling with Transfer Return Call SignalRing Selective Call Rejection Message Waiting Voicemail (1)

Per Location, Per Month Initial Bundle 2nd through 10th bundle Exchanges Month-to- One Year Two Year Three Year All Terms Month (2) Term Term Term

All Exchanges $60.00 (3) $35.00 $30.00 $27.50 $25.00

(1) Deregulated service.

(2) Core Connect 2 LITE customers must initially subscribe to a one-year, two-year or three-year term plan. Month-to-month rates are available upon expiration of a TDP when customers do not renew or select a new TDP option.

(3) Customers who subscribe to the Company’s High Speed Internet as a new service with Core Connect 2 LITE will receive a $10.00 monthly discount on the Initial Bundle rate for the first twelve months of a two or three-year term plan. (Z) ** Content appearing on First Revised Sheet No. 100 initially appeared on Original Sheet No. 100, effective April 29, 2014. Original Sheet No. 100 was erroneously reissued with an (N) effective date of July 29, 2015. Content submitted under that erroneous revision now appears on Original Sheet No. 100.1. (N)

ISSUED: September 30, 2015 EFFECTIVE: November 4, 2015 TX 15-12

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 2nd Revised Sheet No. 100.1 Cancels 1st Revised Sheet No. 100.1

CENTRAL OFFICE SERVICE AND FEATURES

XXX. CENTURYLINK BUSINESS BUNDLES (T)

A. General

1) CENTURYLINK BUSINESS BUNDLES are optional enrollment plans available to (T) business customers with up to twenty-five access lines and/or key trunks across all service territories served by CenturyLink incumbent local exchange carriers (each, a CenturyLink ILEC). This plan permits business customers who subscribe to qualifying products and services to receive Local Exchange Service and additional features and services specified in C. following for a flat monthly rate.

2) CENTURYLINK BUSINESS BUNDLES are available for a maximum of ten (10) (T) business lines at each customer location.

B. Regulations

1) Customers must also subscribe to companion long distance service provided by CenturyLink Communications, LLC for the initial and each additional bundle and (T) the Company’s 1.5 Mbps or greater High-Speed Internet provided by the Company or a CenturyLink affiliate: at each bundle location. In locations where 1.5 Mbps is (T) not available, customers may alternatively subscribe to the Company’s non- regulated 512 or 768 Kbps HSI. The qualifying High-Speed Internet service must (T) be billed on the same invoice as the CENTURYLINK BUSINESS BUNDLE, but may (T) be provisioned on access lines or trunks other than CENTURYLINK BUSINESS BUNDLE. Specific requirements are as follows:

1. CENTURYLINK BUSINESS BUNDLE Option 1 - Month-To-Month Option (C)

• CenturyLink Business Bundle Unlimited Plan A long distance plan, and (C) • Non-regulated 1.5 Mbps or greater High-speed Internet on a month-to- month basis or under a two-year term minimum commitment period at each CENTURYLINK BUSINESS BUNDLE location.

2. CENTURYLINK BUSINESS BUNDLE Option 2 - Two-Year Term Option (C)

• CenturyLink Business Bundle Unlimited Plan A long distance plan, and (C) • Non-regulated 1.5 Mbps or greater High-speed Internet under a two-year term minimum commitment period at each location.

3. CenturyLink Business Bundle Preferred (N)

• CenturyLink Business Bundle Unlimited Plan B long distance plan, and • Non-regulated 1.5 Mbps or greater High-speed Internet on a month-to- month basis or under a two-year term minimum commitment period at each bundle location. (N)

(M) Material moved to Sheet No. 100.1.1 within this section. (M)

ISSUED: May 31, 2019 EFFECTIVE: June 14, 2019 TX 19-06(UT)

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 18 Original Sheet No. 100.1.1

CENTRAL OFFICE SERVICE AND FEATURES

XXX. CENTURYLINK BUSINESS BUNDLES

B. Regulations (Cont’d)

2) There is no minimum service period for the Local Exchange Service and features (M) provided in CENTURYLINK BUSINESS BUNDLE. Customers who discontinue this service within thirty days after establishment of service will be charged only for the number of days of service. (M)

3) CENTURYLINK BUSINESS BUNDLE lines cannot terminate into a PBX or other line (M1) trunking device except as otherwise indicated herein.

4) Components of the CENTURYLINK BUSINESS BUNDLE selected by the customer (T) will be converted to a la carte rates for the remaining services if customers remove any of the qualifying services. If the qualifying High-Speed Internet service is discontinued (T) at any bundle location, components of all CENTURYLINK BUSINESS BUNDLES at (T) that location will be converted to ala carte rates. No termination liability charges will apply for the regulated portion(s) of a CENTURYLINK BUSINESS BUNDLE if a (T) qualifying service is discontinued prior to the minimum service period or term

commitment period for that qualifying service. Early Termination Fees may apply if non- regulated HSI is discontinued prior to the end of a two-year commitment.

5) All terms and conditions specified elsewhere for the respective services/features requested as part of this plan shall apply.

6) Services selected as part of this plan can only be provided where technically available and compatible with other services the customer may choose to order. (M1)

(M) Material moved from Sheet No. 100.1 of this section. (M1) Material moved from Sheet No. 101 of this section.

ISSUED: May 31, 2019 EFFECTIVE: June 14, 2019 TX 19-06(UT)

United Telephone Company of Texas, Inc. General Exchange Tariff d/b/a CenturyLink Section 18 2nd Revised Sheet 101 Cancels 1st Revised Sheet 101

CENTRAL OFFICE SERVICE AND FEATURES

XXX. CENTURYLINK BUSINESS BUNDLES (T)

B. Regulations (Continued) (M)

(M)

7) CENTURYLINK BUSINESS BUNDLES cannot be combined with any other discounts (T) unless otherwise specified.

8) This plan is not available to customers who are or become toll restricted. Service Connection Charges will not apply for those existing lines converted, in-place, to business exchange service due to company-initiated toll restrictions. Such customers will not be permitted to re-enroll in this plan until such time as all associated unpaid balances are satisfactorily paid in full.

(D) 9) An Activation Fee will apply for the month-to-month option in lieu of any other Service Charge(s), except that if a premises visit is required in order to establish service, the nonrecurring charge normally applicable for a premises visit will apply in addition to the Activation Fee. The Activation Fee will be waived when:

• customer migrates existing Local Exchange Service lines to a CENTURYLINK (T) BUSINESS BUNDLE, or • customer orders CENTURYLINK BUSINESS BUNDLE additional lines subsequent to establishment of the initial line, or • customer orders initial and/or additional lines and selects the two-year term commitment for the required High-Speed Internet service.

The Activation Fee does not apply for the two-year term option.

10) Customers may subscribe to Metropolitan Calling Area (MCA), where available as (M1) specified in Section A, for a discounted rate of $5.00 per month. The designated MCA NPA/NXX is required. (M1)

(M) Material moved to Sheet 100.1.1 of this section. (M1) Material moved from Sheet 102 of this section.

ISSUED: May 31, 2019 EFFECTIVE: June 14, 2019 TX 19-06(UT)

United Telephone Company of Texas, Inc. General Exchange Tariff d/b/a CenturyLink Section 18 2nd Revised Sheet 102 Cancels 1st Revised Sheet 102

CENTRAL OFFICE SERVICE AND FEATURES

XXX. CENTURYLINK BUSINESS BUNDLES (T)

(D) (M)

(M) C. Service Description and Rates (T)

1. CenturyLink Business Bundle Options 1 and 2 (T)

a. Description (T)

CENTURYLINK BUSINESS BUNDLE Option 1 and 2 include a flat rate Individual Business (T) Line or Key trunk with Touch tone, flat rate Extended Area Service and unlimited expanded (T) local calling (where available) and the following optional services and features:

Rotary Hunt Service Busy Redial (aka Repeat Dial) Caller ID with Name (includes Anonymous Call Rejection) Call Forwarding Call Forward Busy - Fixed Call Forward No Answer – Fixed Call Forward Remote Activation Enhanced Call Waiting Call Waiting ID Three-Way Calling Three-Way Calling with Transfer Return Call SignalRing Selective Call Rejection Selective Call Acceptance Message Waiting Voicemail [1]

b. Rates and Charges (T)

Monthly rates for the CenturyLink Business Bundle Unlimited Plan A long distance plan (M) (T) provided by CenturyLink Communications, LLC and for deregulated High-Speed Internet provided by the Company are not included in the following rates; however, the monthly rates (T) for all these services will appear as a single line item on the customer’s bill. (M)

Monthly Rate (D) CenturyLink Business Bundle Activation Initial 2nd through Per Line, Per Location Fee Bundle 10th Bundle Month-to-Month (Option 1) $45.00 $19.99 $50.00 (C) Two-Year Term (Option 2) 45.00 19.99 N/A (C)

[1] Deregulated service. (M) Material moved within this page.

ISSUED: May 31, 2019 EFFECTIVE: June 14, 2019 TX 19-06(UT)

United Telephone Company of Texas, Inc. General Exchange Tariff d/b/a CenturyLink Section 18 Original Sheet 102.1

CENTRAL OFFICE SERVICE AND FEATURES

XXX. CENTURYLINK BUSINESS BUNDLES (N)

C. Service Description and Rates

2. CenturyLink Business Bundle Preferred

a. Description

CenturyLink Business Bundle Preferred includes a flat rate Business Individual Line or

Key Trunk with Touch tone, flat rate Extended Area Service, unlimited expanded local

calling (where available), and the following optional services and features:

Rotary Hunt Service Busy Redial (a.k.a. Repeat Dial) Caller ID with Name (includes Anonymous Call Rejection) Call Forwarding Call Forward Busy - Fixed Call Forward No Answer – Fixed Call Forward Remote Activation Selective Call Forwarding Call Waiting/Cancel Call Waiting (a.k.a. Enhanced Call Waiting) Call Waiting ID Three-Way Calling or Three-Way Calling with Transfer Return Call Selective Call Rejection Message Waiting Voicemail [1]

b. Rates and Charges

Monthly rates for the CenturyLink Business Bundle Unlimited Plan B long distance plan provided by CenturyLink Communications, LLC and for deregulated High-Speed Internet provided by the Company are not included in the following rates; however, the monthly rates for all these services will appear as a single line item on the customer’s bill.

Monthly Rate CenturyLink Business Bundle Activation Initial 2nd through Preferred Fee Bundle 10th Bundle Month-to-Month $50.00 $19.99 $50.00 2-Year Term 50.00 19.99 0.00

(N) [1] Deregulated service.

ISSUED: May 31, 2019 EFFECTIVE: June 14, 2019 TX 19-06(UT)

United Telephone Company of Texas, Inc. General Exchange Tariff d/b/a CenturyLink Section 18 2nd Revised Sheet 103 Cancels 1st Revised Sheet 103

CENTRAL OFFICE SERVICE AND FEATURES

XXXI. UNLIMITED NATIONWIDE CALLING OR ESSENTIAL HOME PHONE WITH 30 MINUTES LONG DISTANCE [1] (C)

A. Description

1. Unlimited Nationwide Calling or Essential Home Phone with 30 Minutes Long Distance (hereafter referred to as Essential Home Phone w/ 30 Minutes LD) is an optional enrollment plan that permits residence customers who subscribe to qualifying products and services to receive Local Exchange Service and additional features and services for a flat monthly rate.

2. Customers must subscribe to either the Unlimited Nationwide Calling or 30 Minutes Long Distance calling plan provided by CenturyLink Communications, LLC for each package provided at a customer location.

3. Unlimited Nationwide Calling or Essential Home Phone w/ 30 Minutes LD includes a flat rate one-party residence line with Touch tone, flat rate Extended Area Service, unlimited expanded local calling (where available) and the following services and features:

• Anonymous Call Rejection • Call Forward Busy – Fixed • Call Forward No Answer – Fixed • Call Forward Remote Access (where available) • Call Forwarding • Call Waiting ID • Caller ID with Name • Enhanced Call Waiting (includes Cancel Call Waiting) • Message Waiting • Repeat Dial

• Return Call

• Selective Call Acceptance

• Selective Call Forwarding • Selective Call Rejection • Selective Call Ring • Three-Way Calling • Voicemail [2] (T)

[1] (N) Effective February 18, 2019, Essential Home Phone With 30 Minutes Long Distance is grandfathered. Availability to current customers is limited to lines and features in service at (N) existing locations. (T) [2] Deregulated service.

ISSUED: February 7, 2019 EFFECTIVE: February 18, 2019 TX 19-03

United Telephone Company of Texas, Inc. General Exchange Tariff d/b/a CenturyLink Section 18 2nd Revised Sheet 104 Cancels 1st Revised Sheet 104

CENTRAL OFFICE SERVICE AND FEATURES

XXXI. UNLIMITED NATIONWIDE CALLING OR ESSENTIAL HOME PHONE WITH 30 MINUTES LONG DISTANCE [1] (C)

B. Regulations

1. Components of Unlimited Nationwide Calling or Essential Home Phone w/ 30 Minutes LD will be converted to ala carte rates for the remaining services if customers remove any of the qualifying services.

2. All terms and conditions specified elsewhere for the respective services/features requested as part of this plan shall apply.

3. Services selected as part of this plan can only be provided where technically available and compatible with other services the customer may choose to order.

4. Unlimited Nationwide Calling or Essential Home Phone w/ 30 Minutes LD cannot be combined with any other discounts unless otherwise specified.

5. This plan is not available to customers who are or become toll restricted. Service Charges will not apply for those existing lines converted, in-place, to residence exchange service due to company-initiated toll restrictions. Such customers will not be permitted to re-enroll in this plan until such time as all associated unpaid balances are satisfactorily paid in full.

C. Rates and Charges

1. The monthly rate includes a flat rate one-party residence line which provides Touch tone, flat rate EAS and expanded local calling (where available), plus features and the following fees and surcharges: Interstate Subscriber Line Charge and Access Recovery Charge.

2. Service Charges will not apply for new and additional Unlimited Nationwide Calling Package lines, and moves of existing lines.

3. Service Charges do not apply when Unlimited Nationwide Calling or Essential Home Phone w/ 30 Minutes LD replaces existing Local Exchange Service. The normally applicable Service Charges do apply when Customers request a change back to Local Exchange Service.

[1] Effective February 18, 2019, Essential Home Phone With 30 Minutes Long Distance is (N) grandfathered. Availability to current customers is limited to lines and features in service at existing locations. (N)

ISSUED: February 7, 2019 EFFECTIVE: February 18, 2019 TX 19-03

United Telephone Company of Texas, Inc. General Exchange Tariff d/b/a CenturyLink Section 18 2nd Revised Sheet 105 Cancels 1st Revised Sheet 105

CENTRAL OFFICE SERVICE AND FEATURES

XXXI. UNLIMITED NATIONWIDE CALLING OR ESSENTIAL HOME PHONE WITH 30 MINUTES LONG DISTANCE [1] (C)

C. Rates and Charges (Cont’d)

4. The Company retains the right, in its sole discretion, to change some or all of the network technology on which it delivers this service and the associated unlimited long distance service, including a change to Voice over Internet Protocol technology. If the Company’s network technology changes in such a way that this tariff will no longer apply to Unlimited Nationwide Calling or Essential Home Phone w/ 30 Minutes LD, the following monthly rate will continue to apply, and the new service(s) or plan(s) will be governed by separate, commercial terms between the Company and the customer.

Unlimited Nationwide Calling Package or Monthly Rate Essential Home Phone w/ 30 Minutes LD Per package, per location $35.00 [2] (T)

[2] Rate includes local services, features, fees and surcharges described in C.1. preceding. Monthly (T) rates for the Unlimited Nationwide Calling or 30 Minutes Long Distance calling plan provided by CenturyLink Communications, LLC and for optional deregulated High Speed Internet provided by the Company are not included in this rate; however, the monthly rates for all these services will appear as a single line item on the customer’s bill.

ISSUED: February 7, 2019 EFFECTIVE: February 18, 2019 TX 19-03

United Telephone Company of Texas, Inc. General Exchange Tariff d/b/a CenturyLink Section 18 1st Revised Sheet 106 Cancels Original Sheet 106

CENTRAL OFFICE SERVICE AND FEATURES

XXXII. BASIC BUNDLE WITH HSI – GRANDFATHERED [1] (C)

A. Description

1) Basic Bundle with HSI is an optional enrollment plan that permits residence customers who subscribe to qualifying products and services to receive Local Exchange Service and additional features and services for a flat monthly rate.

2) Basic Bundle with HSI customers must subscribe to CenturyLink’s non-regulated 1.5 Mbps or greater High-Speed Internet (HSI) for each Basic Bundle with HSI. In locations where 1.5 Mbps is not available, customers may alternatively subscribe to the Company’s non-regulated 512 or 768 Kbps HSI.

3) Basic Bundle with HSI includes a flat rate one-party residence line with Touch tone, flat rate Extended Area Service, unlimited expanded local calling (where available) and the following services and features:

• Toll and Casual Dialing Restriction Service Option #2 (allows access to Toll Free Code numbers) - See Section 18 • Billed Number Screening • Non-published Number Service (optional) • Caller ID with Name

B. Regulations

1) Components of the Basic Bundle with HSI will be converted to ala carte rates for the remaining services if customers remove any of the qualifying services.

2) All terms and conditions specified elsewhere for the respective services/features requested as part of this plan shall apply.

3) Services selected as part of this plan can only be provided where technically available and compatible with other services the customer may choose to order.

4) The Basic Bundle with HSI cannot be combined with any other discounts unless otherwise specified.

[1] Effective April 12, 2019, Basic Bundle with HSI is grandfathered. Availability to current (N) customers is limited to lines and features in service at existing locations. (N)

ISSUED: April 1, 2019 EFFECTIVE: April 12, 2019 TX 19-04 (UT)

United Telephone Company of Texas, Inc. General Exchange Tariff d/b/a CenturyLink Section 18 1st Revised Sheet 107 Cancels Original Sheet 107

CENTRAL OFFICE SERVICE AND FEATURES

XXXII. BASIC BUNDLE WITH HSI – GRANDFATHERED [1] (C)

C. Rates and Charges

1) The monthly rate includes a flat rate one-party residence line which provides Touch tone and flat rate EAS and expanded local calling (where available), plus features and the following fees and surcharges: Interstate Subscriber Line Charge and Access Recovery Charge.

2) Service Charges will not apply for new and additional Basic Bundle with HSI lines, and moves of existing lines.

3) Service Charges do not apply when the Basic Bundle with HSI replaces existing Local Exchange Service. The normally applicable Service Charges do apply when Customers request a change from the Basic Bundle with HSI back to Local Exchange Service.

4) The Company retains the right, in its sole discretion, to change some or all of the network technology on which it delivers this service, including a change to Voice over Internet Protocol technology. If the Company’s network technology changes in such a way that this tariff will no longer apply to this Basic Bundle with HSI, the following monthly rate will continue to apply, and the new service(s) or plan(s) will be governed by separate, commercial terms between the Company and the customer.

Basic Bundle with HSI Monthly Rate Per package, per location $32.00 [2] (T)

[1] Effective April 12, 2019, Basic Bundle with HSI is grandfathered. Availability to current (N) customers is limited to lines and features in service at existing locations. (N)

[2] Rate includes local services, features, fees and surcharges described in XXXII.C.1. preceding. (T) Monthly rates for deregulated High Speed Internet provided by the Company are not included in this rate; however, the rates for all these services will appear as a single line item on the customer’s bill.

ISSUED: April 1, 2019 EFFECTIVE: April 12, 2019 TX 19-04 (UT)

United Telephone Company of Texas, Inc. General Exchange Tariff d/b/a CenturyLink Section 18 Original Sheet 108

CENTRAL OFFICE SERVICE AND FEATURES

XXXIII. Simply Unlimited Business ▲

A. Description

1. Simply Unlimited Business is an optional enrollment plan that permits business customers who subscribe to qualifying products and services to receive Local Exchange Service an additional features and services for a flat monthly rate.

2. Simply Unlimited Business is available for a maximum of twenty business lines and/or key trunks at a given customer location, not to exceed twenty-five lines across all customer locations in territories served by a CenturyLink incumbent local exchange carrier.

3. Customers must also subscribe to companion long distance service provided by CenturyLink Communications, LLC for the initial and each additional bundle.

4. Customers may also subscribe to Company’s 1.5 Mbps or greater High-Speed Internet provided by the Company or a CenturyLink affiliate: at each bundle location. In locations where 1.5 Mbps is not available, customers may alternatively subscribe to the Company’s non-regulated 512 or 768 Kbps HSI. The qualifying High-Speed Internet service must be billed on the same invoice as the Simply Unlimited Business but may be provisioned on access lines or trunks other than Simply Unlimited Business.

5. Simply Unlimited Business includes a flat rate one-party business line or key trunk with Touch Tone, flat rate Extended Area Service, unlimited expanded local calling (where applicable) and the following services and features, where available:

Rotary Hunting Line Busy Redial (aka Repeat Dial) Caller ID with Name (includes Anonymous Call Rejection) Call Forwarding Call Forward Busy - Fixed Call Forward No Answer – Fixed Call Forward Remote Activation Selective Call Forwarding Call Waiting/Cancel Call Waiting (a.k.a. Enhanced Call Waiting) Call Waiting ID Three-Way Calling or Three-Way Calling with Transfer Return Call (a.k.a. Call Return) Selective Call Rejection (a.k.a. Call Rejection) Message Waiting [1] Voicemail [1] Optional Extended Metropolitan Service (Customers may be required to accept a new NXX)

▲ All CenturyLink ILECs concur in the rates and regulations governing this service.

[1] Deregulated service.

ISSUED: August 6, 2021 EFFECTIVE: August 16, 2021 TX2021-16

United Telephone Company of Texas, Inc. General Exchange Tariff d/b/a CenturyLink Section 18 Original Sheet 109

CENTRAL OFFICE SERVICE AND FEATURES

XXXIII. Simply Unlimited Business (Cont’d)

B. Regulations

1. Simply Unlimited Business lines cannot terminate into a PBX or other line trunking device except as otherwise indicated herein.

2. Services selected as part of this plan can only be provided where technically available and compatible with other services the customer may choose to order. All terms and conditions specified elsewhere for the respective services/features requested as part of this plan shall apply.

3. There is no minimum service period for the Local Exchange Service and features provided in Simply Unlimited Business. Customers who discontinue this service within thirty days after establishment of service will be charged only for the number of days of service.

4. If customers discontinue any of the required services or features, the remaining components of the Simply Unlimited Business selected by the customer will be converted to a la carte rates. If optional High-Speed Internet service is discontinued at any bundle location, the discounted monthly rate will no longer apply and all Simply Unlimited Business lines at that location will be converted to the applicable monthly rate.

5. Simply Unlimited Business is not available to customers who are or become toll restricted. Service Connection Charges will not apply for those existing lines converted, in-place, to business exchange service due to company-initiated toll restrictions. Such customers will not be permitted to re-enroll in this plan until such time as all associated unpaid balances are satisfactorily paid in full.

6. Simply Unlimited Business cannot be combined with any other discounts unless otherwise specified.

7. The Company retains the right, in its sole discretion, to change some or all of the network technology on which it delivers this service and the associated long distance service, including a change to Voice over Internet Protocol technology. If the Company’s network technology changes in such a way that this tariff will no longer apply to Simply Unlimited Business, the following monthly rate will continue to apply until such time as customers are notified in advance of rate increases, and the new service(s) or plan(s) will be governed by separate, commercial terms between the Company and the customer.

ISSUED: August 6, 2021 EFFECTIVE: August 16, 2021 TX2021-16

United Telephone Company of Texas, Inc. General Exchange Tariff d/b/a CenturyLink Section 18 Original Sheet 110

CENTRAL OFFICE SERVICE AND FEATURES

XXXIII. Simply Unlimited Business (Cont’d)

C. Application of Rates and Charges

1. An Activation Fee will apply in lieu of any other Service Charge(s), except that if a premises visit is required in order to establish service, the nonrecurring charge normally applicable for a premises visit will apply in addition to the Activation Fee. The Activation Fee will be waived when:

• customer migrates existing Local Exchange Service lines to Simply Unlimited Business, or

• customer orders Simply Unlimited Business additional lines subsequent to establishment of the initial line, or

• customer orders optional High-Speed Internet at each bundle location.

2. The normally applicable service charges will apply when Simply Unlimited Business customers request a change back to Local Exchange Service or another packaged service.

3. The monthly rate includes a flat rate one-party business line or key trunk with Touch tone, flat rate EAS, expanded local calling (where available), features, unlimited long distance provided by CenturyLink Communications, Inc., and the following fees and surcharges: Interstate Subscriber Line Charge, Intrastate Subscriber Line Charge (where applicable), and Access Recovery Charge.

4. Simply Unlimited Business includes a rate stability plan which allows customers to pay a fixed monthly rate that is not subject to rate changes over a fixed period. Customers will pay the tariffed rate in effect as of the service establishment date for the first twelve months after service is established. On the service establishment anniversary date, the customer’s monthly rate will increase to the lesser of the then-prevailing tariffed rate or a rate that is $5.00 higher than the rate in effect on the service establishment date. Thereafter, on each subsequent anniversary date, the monthly rate may increase by no more than $5.00, not to exceed the then-prevailing tariffed rate.

5. Simply Unlimited Business lines subsequently added to the customer’s account will be charged the monthly tariffed rate in effect as of the date the new Simply Unlimited Business line(s) is/are added to the account. The same rate stability provisions apply to subsequently added lines, based on the service establishment date for those lines.

6. Customers will be notified at least thirty days prior to any service anniversary date rate increase. Such notice will include the actual amount by which customer’s Simply Unlimited Business will increase.

7. The following monthly rates do not include applicable charges for non-regulated High- Speed Internet provided by the Company. However, the charges listed in XXXIII.C.3. preceding and the rate for High-Speed Internet will appear as a single line item on the customer’s bill. Zone charges do not apply. ISSUED: August 6, 2021 EFFECTIVE: August 16, 2021 TX2021-16

United Telephone Company of Texas, Inc. General Exchange Tariff d/b/a CenturyLink Section 18 Original Sheet 111

CENTRAL OFFICE SERVICE AND FEATURES

XXXIII. Simply Unlimited Business (Cont’d)

D. Rates and Charges (Cont’d)

Monthly Rate Each Additional Activation Option Initial Bundle, Per Bundle, Per Fee Location Location Simply Unlimited Business with Long $50.00 $50.00 $50.00 Distance Simply Unlimited Business with Long 40.00 35.00 -- Distance and High- Speed Internet[1]

[1] This monthly rate and the applicable rate for HSI will appear on invoice as a single line item.

ISSUED: August 6, 2021 EFFECTIVE: August 16, 2021 TX2021-16

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 19

Original Sheet No. 1

SUSPENSION OF SERVICE

I. CUSTOMER'S SERVICE SUSPENSION

The Telephone Company may suspend customer's service as outlined in Paragraph XII, C. of Section 7 of this General Exchange Tariff and will be subject to the following rules and regulations:

A. A customer's telephone service may be suspended for failure of the customer to pay charges for basic local service provided in the General Exchange Tariff, if billing for such services has not been paid within twenty-six (26) days from the date of issuance and if proper notice by the Company has been given. Proper notice shall consist of a mailing or hand delivery of such notice at least ten (10) days prior to stated date of disconnection.

1. No residential subscribers will be disconnected for non-payment of toll charges; unless the toll charges were imposed after call blocking was imposed.

2. Non-residential subscribers may be disconnected for nonpayment of any toll charges.

3. Lifeline subscribers will not be disconnected for non-payment of toll charges incurred after toll blocking was imposed.

4. A residential customer who has received a notice following suspension of service for non-payment for services is eligible to receive Prepaid Local Telephone Service (PLTS) pursuant to the requirements of Section A of the Local Exchange Tariff.

B. Services will be restored upon payment of all amounts due the Company and credit reestablished as provided in Section 2, of this General Exchange Tariff. When service has been disconnected for non-payment, the contract is considered to have been terminated. Restoration of service may be made only upon execution of a new contract.

C. Service will be restored within a reasonable length of time after payment of all amounts due and credit re-established as prescribed in preceding sub-paragraph (B) of this Section 19, and will be done during regular Company working hours. Restoration charges will be made in accordance with provisions set forth in Section 17, of this General Exchange Tariff, Service Connection and Service Charges.

D. Payment Allocation following Suspension or Disconnection for non-payment shall be as follows:

1. Payments shall first be allocated to charges for basic local service provided in this General Exchange Tariff.

2. If services are bundled, the rate of basic local service shall be the charge for stand- alone basic local service.

3. After the outstanding charges for basic local service have been met, payment can be applied to other, outstanding, non-basic charges.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 19 (T) 1st Revised Sheet No. 2 Cancels Original Sheet No. 2

SUSPENSION OF SERVICE

II. AT CUSTOMER'S REQUEST

A. Temporary suspension of service is available at the customer's request on all types of residence and business service except rural party-line, private branch exchange and intercommunicating systems.

1. No reduction of local service charges is made where all service, including miscellaneous service, at the customer's premises is suspended. Suspension of a portion of a customer's service will not be permitted.

2. Temporary suspension of service may begin any day of the month provided sufficient notice is given the Company in advance.

3. There is no limit to the period of temporary suspension; however, such suspension will be confirmed with the customer every twelve (12) months.

4. Where the customer gives a restoration date at the time the suspension is requested, the company will restore the service on the date requested without further notice. In all other cases, adequate advance notice is required for restoration. Service will be restored during regular working hours, except under unusual circumstances.

5. No charge will be made for the suspension of service; however, appropriate service connection charges (Service Order Charge and Central Office Work Charge) will apply for restoration of service as prescribed under Section 17 of this General Exchange Tariff. (N) B. Customer Requested Termination of Service

When business service is terminated at the customer’s request after the minimum service period or initial contract period has been met, service will be discontinued immediately, and a final bill will be issued in accordance with XXII.C. of Section 7, Prorating of Bills.

Residential customers may request termination of residence service at any time, and service will be discontinued on the last day of the customer’s billing cycle after the minimum service period has been met, except as described otherwise in XXII.C. of (N) Section 7, Prorating of Bills.

ISSUED: June 16, 2020 EFFECTIVE: July 17, 2020 TX2020-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 19 (C) First Revised Sheet No. 3 Cancels Original Sheet No. 3

SUSPENSION OF SERVICE

Reserved for Future Use (T)

(D)

ISSUED: November 10, 2009 EFFECTIVE: November 20, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 20

Original Sheet No. 1

PRIVATE LINE SERVICES AND CHANNELS

I. INTRAEXCHANGE PRIVATE LINE SERVICES AND CHANNELS

Intraexchange private line service is the furnishing of Telephone Company facilities for communications by customers between specified locations within the same exchange area boundary.

II. REGULATIONS APPLICABLE TO ALL PRIVATE LINE SERVICES AND CHANNELS

A. Rates for Fractional Periods

1. When rates are on a "per month" basis, the minimum charge will be for one month. If the period of use exceeds one month, the charges for the fractional part of a month following and consecutive with a full month will be a proportionate part of the monthly charges based on the actual number of days the facilities are furnished. For the purpose of administering this regulation with respect to the determination of charges for a fractional part of a month, every month is considered to have thirty days.

2. When rates are on a "per day" basis, the minimum charge for each day or fraction thereof will be the charge for one day.

III. REGULATIONS APPLICABLE TO PRIVATE LINE SERVICES

A. Obligation of Customer

1. The calling party (or customer) shall establish his identity in the course of any communication as often as may be necessary.

2. The calling party (or customer) shall be solely responsible for establishing the identity of the person or persons with whom connection is made at the called telephone.

3. Facilities on the premises of a customer furnished by the Telephone Company are the property of the Telephone Company, whose agents and employees shall have the right to enter said premises at any reasonable hour for the purpose of installing, inspecting or repairing the facilities or upon termination of the service, for the purpose of removing such facilities.

B. Maintenance and Repair

1. All ordinary expense of maintenance and repairs, in connection with facilities and services provided by the Telephone Company, unless otherwise specified in the Telephone Company's tariffs, is borne by the Telephone Company. In case of damage, loss or destruction of any of the Company's facilities due to the negligence or willful act of the customer and not due to ordinary wear and tear or other causes beyond the control of the customer, the customer shall be responsible for the cost of replacing the facilities destroyed or for the cost of restoring the facilities to their original condition. A customer may not rearrange, disconnect, remove or attempt to repair, or permit others to rearrange, disconnect, remove or attempt to repair any facilities provided by the Telephone Company except upon the written consent of the Telephone Company.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 20 (T) 1st Revised Sheet No. 2 Cancels Original Sheet No. 2

PRIVATE LINE SERVICES AND CHANNELS

III. REGULATIONS APPLICABLE TO PRIVATE LINE SERVICES (Continued)

B. Maintenance and Repair (Continued)

2. Customers will be billed a Trouble Isolation Charge (a.k.a. Maintenance of Service (T) Charge), as set forth in Section 17 of this tariff, for each service call to the customer's (T) premises when service is impaired due to the connection of customer-provided equipment or facilities.

C. Defacement of Premises

1. The Telephone Company is not liable for any defacement of or damage to the premises of a customer resulting from the attachment of the Telephone Company's facilities on such premises or by the installation or removal thereof, when such defacement or damage is not the result of negligence of the Telephone Company.

D. Use of Service

1. The service or channel is intended only for communications in which the customer has a direct interest and shall not be used for any purpose for which a payment or other compensation shall be received by them or either of them from any other person, firm or corporation for such use, or in the collection, transmission or delivery of any communication for others.

E. Voice Silencers

1. Devices provided by the customer to obtain quietness or privacy may be used, provided any such device does not involve direct electrical connection to the facilities of the Telephone Company, except as provided for in this or other sections of this tariff.

F. Miscellaneous Devices Provided by the Customer

1. Miscellaneous devices may be furnished and maintained by the private line services and channels customer which serve his convenience in his use of facilities of the Telephone Company in the service for which they are furnished under this tariff provided any such devices so used would not endanger the safety of Telephone Company employees or the public; damage, require change in or alteration of the facilities of the Telephone Company; impair or interfere with the proper functioning of such facilities; or otherwise injure the public in its use of the Telephone Company's service.

2. Except as otherwise provided in this Tariff, nothing herein shall be construed to permit the use of a recording device or of a device to interconnect any facilities of the Telephone Company with any other communication facility of the Company or of any other person.

ISSUED: May 12, 2020 EFFECTIVE: June 12, 2020 TX2020-06

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 20

Original Sheet No. 3

PRIVATE LINE SERVICES AND CHANNELS

IV. GENERAL RULES AND REGULATIONS

A. General Undertaking of the Telephone Company

1. Private line facilities are electrical paths suitable for the purpose furnished and are derived in such manner as the Telephone Company may elect. The Telephone Company will furnish facilities for specific purposes, as described hereinafter, subject to the availability of facilities and the requirements of the Company's message toll and regular exchange service, and are subject to such other conditions as are specified in this tariff.

2. Except in the case of channels in connection with foreign exchange service and except as specifically provided elsewhere in this tariff, it is contemplated that the customer will provide all station apparatus used with the channel exclusive of the equipment necessary to derive the channel furnished.

3. Private Line facilities are furnished for use between two or more designated premises. The facilities are intended only for communications in which the customer or an authorized user has a direct interest and shall not be used for any purpose for which a payment or other compensation shall be received by them or either of them from any other person, firm or corporation for such use, or in the collection, transmission or delivery of any communication for others. The service or any rights acquired in connection with it by the customer may not be assigned or transferred except as provided under the Sub-section III D.

B. Combinations of Channels Used for a Single Purpose

1. Where a combination of two or more facilities is necessary to provide channel facilities for a single purpose, charges are determined upon the basis of the type and number of facilities required.

C. Use of Channels by Customer

1. The customer may not create additional private lines from facilities provided by the Telephone Company except as provided in the various sections of this Tariff.

2. The magnitude and the character of the voltages and currents impressed on the Telephone Company private lines by the customer-owned equipment and wiring and the operation and maintenance of such equipment and wiring shall be such as not to interfere with any of the services offered by the Telephone Company or interfere with others. The characteristics of the customer-owned apparatus shall be such that its connection to the Telephone Company facilities does not interfere with service over other Telephone Company circuits or facilities or impair privacy of conversations over such circuits or facilities. In cases in which additional protective equipment is required, this shall be provided by the Telephone Company at the customer's expense. Such equipment shall be suitable to avoid hazard or damage to Telephone Company plant or of injury to Telephone Company employees or to the public because of the character or location of customer-owned apparatus and of sources of power to which it is connected.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 20

Original Sheet No. 4

PRIVATE LINE SERVICES AND CHANNELS

IV. GENERAL RULES AND REGULATIONS (Continued)

C. Use of Channels by Customer (Continued)

3. The Telephone Company may, upon suitable notification to the customer, make such tests and inspections as may be necessary to determine that the above requirements are being compiled with, in the installation, operation and maintenance of customer- owned equipment. The Telephone Company may interrupt if at any time such action should become necessary in order to protect any of its services because of departure from these requirements.

4. The facilities and equipment furnished by the Telephone Company shall not be connected, either directly or indirectly, with facilities provided other than by such company except as provided in this tariff.

V. PRIVATE LINE CONTRACTS

A. Where facilities are not available or unusual expenditure for construction is required, or special considerations prevail, a termination contract may be required. The contract may require that the customer retain the service for a period of months under penalty of paying rental for the full contract term if service is cancelled before the term expires, or pays excess construction costs, or both.

B. Following are the general rules for determining the necessity to negotiate a contract with the customer.

1. Contracts are not necessary for services wholly within initial base rate areas except under very unusual circumstances such as the necessity to provide a special type of circuit or for considerable construction to provide circuits that would not be usable for exchange service if discontinued as a private line.

2. When construction is necessary outside of the initial base rate area, contracts may be required as specified:

a. For a temporary customer 100% of the construction expense is to be paid. Contracts shall be prepared for all such installations showing a 30 day minimum service period.

b. The decision as to whether a customer is to be classed as temporary or not must be made on the basis of best information obtainable and statements made by the customer. Following are a few types of customers which, by their very nature, would usually be classed as temporary; contractors field or project offices, oil drillers or explorers for other natural resources. Government agencies or contractors even though known to be temporary, may be considered as permanent and contracts negotiated with them.(1) This would include weather stations, stream gauging, dam construction, military bases or field operations, etc.(1)

(1) Exceptions: All departments of the United States Government and all loops furnished for Western Union Telegraph and American District Telegraph Company must be covered by contracts or leases and billed on special billing.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 20

Original Sheet No. 5

PRIVATE LINE SERVICES AND CHANNELS

V. PRIVATE LINE CONTRACTS (Continued)

B. Following are the general rules … (Continued)

For more permanent type customers a contract may be required in lieu of all, or a portion of the construction charges, based on the estimated construction costs as related to revenue to be received from the entire circuit as follows:

REQUIREMENTS Circuit Revenue Equal Construction Contract Minimum Service Construction Cost Computation Required Period to be Paid

For: 1 to 12 Months No 30 Days None 13 to 24 Months Yes 24 Months None 24 to 36 Months Yes 36 Months None 37 to 48 Months Yes 48 Months None 49 Months and Over Yes 48 Months In Excess of 48 Mo. Revenue

C. Billing Procedures

1. Billing Routine

a. When the private line customer is also a customer to exchange service at the same exchange where the private line is located, billing shall be set up on his exchange service monthly bill.

b. For all non-customers within the exchange where the private line is located, billing shall be set up on a special billing number for automatic (or computerized) billing and will be monthly in advance. The billing will begin with the date the service starts.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 20 First Revised Sheet No. 6 Cancels Original Sheet No. 6

PRIVATE LINE SERVICES AND CHANNELS

VI. FACILITIES FOR MISCELLANEOUS PURPOSES

A. Description

1. The following types of facilities are furnished between specified locations for such purposes as to indicate the readings of meters at other locations, to operate switches which, in turn, perform some desired operation, to transmit and receive longhand written material, or to operate signals.

2. Facilities furnished under this section of the General Exchange Tariff may be used by the customer, in accordance with the normal transmission characteristics of such channels, for remote metering, supervisory control and miscellaneous signaling purposes only.

a. Local Loop - Unconditioned channels having transmission characteristics for D.C. to voice grade service. These facilities are capable of transmitting direct current mark-space signals and are suitable for the transmission of voice grade service.

B. Rates

Local Loops(1)

Rates Service Connection Charge Rate Per Month

First 1/4 mile airline fraction thereof $50.00 $10.40 Each additional 1/4 mile airline NC 3.50 ( I )

VII. RECORDED MUSIC AND SPEECH LOOPS

Local Loops(1) Service Connection Charge Rate Per Month

Facilities from music stations to music customer First 1/4 mile airline (2483) $50.00 $10.40 Each additional 1/4 mile airline (2484) NC 3.50 ( I )

(1) Multi-point loops will be priced out in the foregoing rates by totaling the direct airline distances from each building or terminal location to its serving central office, fractional 1/4 mile being treated as full 1/4 mile for each two-point segment of distance.

ISSUED: August 18, 2008 EFFECTIVE: August 28, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 20 First Revised Sheet No. 7 Cancels Original Sheet No. 7

PRIVATE LINE SERVICES AND CHANNELS

VIII. MULTIPOINT TWO-WAY RADIO LOOPS

A. Multipoint two-way radio loops will be rated by totaling the direct airline distances from each building or terminal point to its serving central office, fractional 1/4 mile being treated as full 1/4 mile for each two-point segment of distance.

Local Loops Service Connection Charge Rate Per Month

Facility from Central Office to each terminal location First 1/4 mile airline (3122) $50.00 $10.40 Each additional 1/4 mile Airline (3123) NC 3.50 ( I )

IX. BURGLAR ALARM LOOPS

A. Multi-point burglar alarm loops will be rated by totaling the direct airline distances from each building or terminal point to its serving central office, fractional 1/4 mile being treated as full 1/4 mile for each two-point segment of distance.

Local Loops Service Connection Charge Rate Per Month Facilities from Central Office to each terminal location First 1/4 mile airline (2481) $50.00 $10.40 Each additional 1/4 mile Airline (2482) NC 3.50 ( I )

X. AUTOMATIC RING-DOWN SERVICE MILEAGE

Local Loops(1) Service Connection Charge Rate Per Month Facilities from Central Office to each terminal location First 1/4 mile airline (3618) (2) $10.40 Each additional 1/4 mile airline (3615) NC 3.50 ( I )

(1) Multipoint loops will be priced out in the foregoing rates by totaling the direct airline distances from each building or terminal location to its serving Central Offices, fractional 1/4 mile being treated as full 1/4 mile for each two-point segment of distance.

(2) Refer to Section 18 of this tariff, Automatic Ring-Down Service, to obtain rates and charges for switching and signaling equipment.

ISSUED: August 18, 2008 EFFECTIVE: August 28, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 21

Original Sheet No. 1

PAY TELEPHONE SERVICE

I. GENERAL

A. Pay Telephone Service (PTS) is a telecommunications service utilizing any coin, coinless, credit card reader, or cordless instrument that is accessible by members of the general public, or business patrons, employees, and/or visitors of the premise’s owner or lessee where pay telephone service is installed, provided that the end user pays for local or toll calls from such instrument on a per call basis. For purposes of this section, coinless telephones provided in guest rooms by a hotel/motel are not pay telephones. A telephone that is primarily used by business patrons, employees, and/or visitors of the premise’s owner is not a pay telephone if:

1. the primary use of such telephone is for local calls or toll-free "1-800" or "1-888" calls;

2. all local calls and "1-800" and "1-888" type calls from such telephone are free to the end user; and

3. the telephone is not accessible by members of the general public.

II. DEFINITIONS

A. Operator Service - Any service using live operator or automated operator functions for the handling of telephone service, such as toll calling via collect, third number billing, and calling card services. The transmission of “1-800 and 1-888” numbers, where the called party has arranged to be billed, is not operator service.

B. Operator Service Provider (OSP) - Any person or entity that provides operator services by using either live or automated operator functions. When more than one entity is involved in processing an operator service call, the party setting the rates shall be considered to be the OSP. However, subscribers to customer-owned pay telephone service shall not be deemed to be OSPs.

C. Rate Information - All charges ultimately charged to the PTS provider, including any surcharges, fees, and any other form of compensation charged by the PTS provider on behalf of the call aggregator.

D. "0+" Call - A call made by the caller dialing the digit "0" followed by the terminating telephone number. On some automated call equipment, a digit or digits may be dialed between the "0" and the terminating telephone number.

E. "0-" Call - A call made by the caller dialing the digit "0" and no other digits within five seconds. A "0-" call may be made after a digit (or digits) to access the local network is (are) dialed.

F. Automatic Number Identification (ANI) - The automatic transmission by the local switching system of the originating telephone number to an interexchange or other communications carrier or to the operator of a 911 system.

G. Originating Line Screening (OLS) - A two-digit code passed by the local switching system with the ANI at the beginning of a call that provides information about the originating line.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 21 First Revised Sheet No. 2 Cancels Original Sheet No. 2

PAY TELEPHONE SERVICE

II. DEFINITIONS (Continued)

H. End User Choice - A system that allows the automatic routing of interexchange, operator- assisted calls to the billed party's chosen carrier without the use of access codes.

I. Call Aggregator - Any person or entity that owns or otherwise controls telephones intended to be utilized by the public. For the purposes of this definition, a person or entity controls a telephone if that person or entity has the authority to post notices and/or unblock access.

III. RULES AND REGULATIONS

Registration - All Pay Telephone Service Providers must be in compliance with the Public Utility Commission of Texas Substantive Rule (S.R.) 23.54(b) (1) (2) regarding registration.

A. Pay Telephone Service

1. Customers who elect not to subscribe to Billed Number Screening, as described in Section 18, will be fully responsible for all collect calls and third number billed calls which are billed to customer's exchange access line. The Telephone Company shall have no responsibility to adjust any such charges and/or release customer from paying such charges. Customer will hold the Telephone Company harmless from and against any liability or loss resulting from all such collect calls and third number billed calls.

2. Selective Class of Call Screening enables a customer by means of Telephone Company (M) Operator identification, to restrict outgoing toll calls from station users to only those calls which are charged to the called telephone, a third number or a calling card account. (M) Customers who elect not to subscribe to Selective Class of Call Screening will be fully (D) responsible for all calls billed to customer's exchange access line. The Telephone Company shall have no responsibility to adjust any such charges and/or release customer from paying any such charges. Customer will hold the Telephone Company harmless from and against any liability or loss resulting from all calls billed to customer's exchange access line.

B. Pay Telephone Service Providers

1. Pay Telephone Service is a service offered by a certificated telecommunications utility which provides a two-way, or optionally, a one-way originating-only business access line composed of the serving central office line equipment, all outside plant facilities needed to connect the serving central office with the customer premises, and the network interface.

2. Pay Telephone Service Providers telephones must be registered in compliance with Part 68 of the FCC’s Registration Program.

3. A maximum of one telephone instrument may be connected to any one Pay Telephone Service access line.

4. Pay Telephone Access Line service is offered in all of the Company's exchanges.

(M) Material now appearing on this sheet was previously found in Section 18, Original Sheet No. 59.

ISSUED: June 19, 2009 EFFECTIVE: July 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 21

Original Sheet No. 3

PAY TELEPHONE SERVICE

III. RULES AND REGULATIONS (Continued)

C. Pay Telephone Service Providers (Continued)

5. The Pay Telephone Service provider shall sign an agreement to indemnify and hold United Telephone of Texas harmless from any and all loss, damage and expense occasioned by or arising out of claims for injury to persons or damage to property caused by or contributed to by the provision of detailed toll billing records and/or local message billing records to the Pay Telephone Service provider by United Telephone Company of Texas, including but not limited to, any disclosure of said detailed toll billing records and/or local message billing records by the Telephone Service provider.

6. No person, business, government or entity of any type, will be permitted to subscribe to Pay Telephone Service where such service, in the opinion of the Telephone Company, is being used primarily for the purpose of placing directory assistance calls. If such Pay Telephone Service is installed, and it is subsequently discovered by the Telephone Company, by whatever means, that such service is, in the opinion of the Telephone Company being used primarily for the purpose of placing directory assistance calls, such service will be disconnected after giving the customer a written 20-day notice of violation and disconnection. The Telephone Company further reserves the right to connect, or re-connect, such Pay Telephone Service at such premise(s) in the future.

7. Coin control service is available as an optional service for use in conjunction with pay telephone service. Coin control service is based on a central office platform which offers features for use with coinless or coin operated (pay) telephone service. Coin control service uses a software-driven system to provide features and capabilities similar to those provided by micro-processor based, "smart", payphone sets.

D. Requirements for Pay Telephone Service (PTS)

1. If the PTS provider uses automated call completion technology to complete operator service calls, the provider of PTS must:

a. audibly and distinctly identify itself to the caller upon answering;

b. audibly and distinctly identify itself to the billed party, if the billed party is different from the caller;

c. provide a mechanism for the caller to obtain rate information, without charge, 24 hours a day, seven days a week; and

d. permit the caller or billed party to terminate the call at no charge prior to completion of the call by the PTS provider.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 21

Original Sheet No. 4

PAY TELEPHONE SERVICE

III. RULES AND REGULATIONS (Continued)

D. Requirements for Pay Telephone Service (PTS) (Continued)

2. 911 calls, "0-" calls, and end user choice.

a. The PTS provider must allow 911 calls to be outpulsed directly to the Public Service Answering Point at no charge and without requiring a coin or credit card.

b. Where End User Choice, as defined in S.R. 23.54 (a) (7), is not available, the PTS provider must allow "0-" calls, and must directly route, without charge to the calling party, all "0-" calls to an OSP that provides access to emergency services provider that meet the technical standards set forth in S.R. 23.55 (g)(2)(A)-(F) relating to Operator Services.

c. When and where available, use of End User Choice, as herein defined in Subsection II, is required.

d. The requirements of this paragraph do not apply to pay telephones accessible to inmates of confinement facilities.

3. Access.

a. The PTS provider must:

1) provide access to operator services, which access must be available 24 hours a day, seven days a week, at no charge and without requiring a coin or credit card;

2) provide access to directory assistance, which access must be available 24 hours a day, seven days a week, at no charge and without requiring a coin or credit card; and

3) provide access to the operator of a local exchange company that meets the requirements enumerated in S.R. 23.55(k)(3) and that serves the area from which the call is made, at no charge and without requiring a coin or credit card, either:

a) by directly routing all "0-" calls to such local exchange company operator, without charge to the caller; or

b) by transfer or redirection of the call by an OSP in accordance with the provisions of S.R. 23.55 (i)(1)(A)(ii)(I)-(III).

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 21

Original Sheet No. 5

PAY TELEPHONE SERVICE

III. RULES AND REGULATIONS (Continued)

D. Requirements for Pay Telephone Service (PTS) (Continued)

3. Access (Continued)

b. The PTS provider must also allow access to other telecommunications utilities unless otherwise provided in clause c. of this subparagraph.

1) Access to interexchange carriers by "950-XXXX" and "1-800" or "1-888" numbers must not be blocked.

2) Access to interexchange carriers by "101XXXX+O" (whether "101XXXX+O+" or "101XXXX+O-.") dialing must not be blocked if the end office serving the originating line has OLS capability.

3) To prevent fraudulent use of the pay telephone, the access requirement is explicitly waived under the following conditions without prior application to the commission:

a) Access to interexchange carriers by "101XXXX+0" (whether "101XXXX+0+" or "101XXXX+0-") dialing may be blocked, if the end office serving the originating line does not have OLS screening capability.

b) Access to interexchange carriers by "101XXXX+1" dialing may be blocked.

c. The requirements of this paragraph do not apply to pay telephones accessible to inmates of confinement facilities.

4. Other

a. The PTS provider must:

1) ensure that end users can place all local and toll calls, except direct dialed international calls, from the pay telephone, including, but not limited to, operator-assisted international calls, collect calls, third number billed calls, and calling card calls;

2) be responsible for the payment of charges for all local and toll messages, including, but not limited to, non-local directory assistance charges, except as provided in S.R. 23.54(j), relating to fraud protection;

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 21

Original Sheet No. 6

PAY TELEPHONE SERVICE

III. RULES AND REGULATIONS (Continued)

D. Requirements for Pay Telephone Service (PTS) (Continued)

4. Other (Continued)

a. The PTS provider must:

3) comply with all applicable federal, state and local laws and regulations including those concerning the use of pay telephones by disabled and/or hearing- or speech-impaired persons;

4) not attach extension telephones to pay telephones, unless the pay telephone displays a notice that legibly and conspicuously states in capital letters, "YOUR CONVERSATION MAY BE OVERHEARD BECAUSE AN EXTENSION TELEPHONE IS ATTACHED TO THIS PHONE LINE;"

5) not impose a time limit on local calls.

6) The requirements of subparagraph (a) 1) and 5) of this paragraph do not apply to pay telephones accessible to inmates of confinement facilities.

b. If the PTS provider uses automated call completion technology to complete operator service calls, and if validation information is available for calls that the PTS provider (or a third-party billing and collection agent operating on behalf of the PTS provider) will bill through a certificated telecommunications utility, the PTS provider is required to validate the call and is allowed to submit the call for billing only if the call was validated.

c. PTS may be connected to, from, or through a customer-provided telecommunications switching system, or local exchange carrier-provided central office switching system, provided that the PTS provider meets all requirements of S. R. 23.54. The PTS provider must ensure access to E-911, 911 and/or 0- is not blocked and must comply with all legislative and rule requirements regarding the operation of E-911 and 911. This access configuration is not allowed if it prevents usage measurement, by the local exchange carrier, of a local exchange carrier-provided COPTS access line. For purposes of this paragraph, local exchange carrier is defined as any entity holding either a Certificate of Convenience and Necessity, Certificate of Operating Authority, or Service Provider Certificate of Operating Authority.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 21 First Revised Sheet No. 7 Cancels Original Sheet No. 7

PAY TELEPHONE SERVICE

IV. PAY TELEPHONE SERVICE RATES AND CHARGES

A. Service connection charges apply in addition to other charges specified for pay telephone access line service.

B. A "local message" from pay telephone service served by a given exchange is a completed local call, originating at such service and terminating at any service which may be called, without toll charge.

C. Pay Telephone Service will be provided on a monthly access line flat rate basis, not (T) exceeding the basic exchange business one-party flat rate. Extended Area Service (EAS) and Expanded Local Calling Service (ELCS) charges do not apply. Pay Telephone Service access line flat rates are as follows:

Exchange Monthly Rate Exchange Monthly Rate

Anderson $17.00 Martins Mill $17.00 Arp 17.00 Millsap 20.00 Athens 20.00 Montalba 20.00 Bremond 17.00 Murchison 17.00 Bridgeport 17.00 Navasota 17.00 Brownsboro 17.00 Neches 20.00 Bullard 20.00 New London 17.00 Cayuga 17.00 Overton 17.00 Chandler 20.00 Palestine 20.00 Commerce 17.00 Palo Pinto 17.00 Cooper 17.00 Paradise 17.00 Dublin 17.00 Payne Springs 20.00 Eustace 17.00 Perrin 17.00 Flat 17.00 Plantersville 17.00 Frankston 17.00 Possum Kingdom Lake 17.00 Gatesville 17.00 Pottsville 17.00 Graford 17.00 Price 17.00 Groesbeck 17.00 Richards 17.00 Hamilton 17.00 Runaway Bay 17.00 Hico 17.00 Santo 17.00 Jonesboro 17.00 Shiro 17.00 Joplin 17.00 Stephenville 17.00 Kaufman 17.00 Tennessee Colony 20.00 Kemp 17.00 Thornton 17.00 Kerens 17.00 Tool-Seven Points 17.00 Koon Kreek 17.00 Trinidad 17.00 Kosse 17.00 Troup 17.00 Lake Palestine East 20.00 Tucker 20.00 Mabank 17.00 Washington 17.00 (T) Malakoff 17.00

D. Pay Telephone Service will be provided on a flat rate basis. (M)

(M)

(M) Certain material previously appearing on this page now appears on 1st Revised Sheet No. 8.

ISSUED: August 18, 2008 EFFECTIVE: August 28, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 21 Second Revised Sheet No. 8 Cancels First Revised Sheet No. 8

PAY TELEPHONE SERVICE

IV. PAY TELEPHONE SERVICE RATES AND CHARGES (Continued)

E. Calling and/or any other services are desired, charges as specified in the appropriate sections of the General Exchange or Local Exchange Tariffs are applicable to Pay Telephone Service at the same rates and charges applicable to the standard business exchange access line.

F. When portions of an existing pay telephone installation such as shelves, enclosures, etc. are left in place and desired for purchase by the pay telephone provider, charges for such items will be quoted to the pay telephone service provider upon request.

G. Where a pay telephone service is discovered to be connected to the network and being under any tariff other than the Pay Telephone Service Tariff, the Telephone Company shall back-bill the difference between the Pay Telephone Service rate shown in Paragraph D of this Subsection and the rate the pay telephone provider actually paid unless the pay telephone provider can show that the pay telephone was connected for less than six months in which case the back-billing shall run from the date of connection.

H. If a pay telephone provider fails to pay the amount back-billed pursuant to the above-stated provision, the Telephone Company shall suspend service, pursuant to applicable P.U.C. rules and regulations governing discontinuance of service and under-billing, on the Pay Telephone Service access line and on any other business telephone service provided by the Telephone Company to the Pay Telephone provider until such time as the back-billed amount is paid in full.

I. Charges for long distance directory assistance calls, as provided by Other Common Carriers and not by the Telephone Company, will be at rates and charges specified by such Other Common Carriers.

J. Charges and rates for long distance message telecommunications service, as provided by the Telephone Company, will be as specified in United's Long Distance Message Telecommunications Service Tariff. Charges for such long distance service, as provided by Other Common Carriers and not by the Telephone Company, will be at rates and charges specified by such Other Common Carriers.

K. Detail billing for local calls will be provided at the customer's request for Pay Telephone Service. Detail billing will be provided for local calls only in those central offices where the capability exists and at a rate of $0.03 per call itemized.

L. Coin Control, each line (in addition to the pay telephone line) $ 4.00

M. In addition to the pay telephone access line rate, the subscriber will be responsible for paying the multi-line subscriber line charge.

N. All other applicable charges (e.g., toll charges, mileage charges, etc.) are the responsibility of the pay telephone service subscriber.

O. Answer Supervision, each line (in addition to the pay telephone line) $4.00

P. Selective Class of Call Screening 2.50 (M)

(M) Material now appearing on this sheet was previously found in Section 18, Original Sheet No. 60.

ISSUED: June 19, 2009 EFFECTIVE: July 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 22 Second Revised Sheet No. 1 Cancels First Revised Sheet No. 1

RESERVED FOR FUTURE USE (T)

(D)

(M)

(M) (D)

(D)

(D) (D)

(M) Material previously found on this sheet now appears in Local Exchange Tariff Section A, Sixth Revised Sheet No. 1.

ISSUED: November 24, 2008 EFFECTIVE: January 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 23

Original Sheet No. 1

SWITCHLINK PLUS SERVICES(1)

I. GENERAL

A. United SwitchLink Plus Services are serving wire center based communications services for the transmission of digital signals, over a specifically equipped two-wire access line. SwitchLink Plus Services may be ordered as follows:

1. SwitchLink Plus Service provides asynchronous data access at speeds up to and including 19.2 kbps and synchronous data access at speeds up to and including 56 kbps.

B. SwitchLink Plus Services are not inherently voice functional. Use of the service is limited to the transmission of digital signals.

II. DEFINITIONS

SwitchLink Plus Access Line refers to the two-wire facility connecting the customer premises to the SwitchLink Plus Services switching equipment.

SwitchLink Plus Services Service Arrangement refers to the equipment required in the serving wire center per line to support data transmission speeds over the SwitchLink Plus Service Access Line.

SwitchLink Plus Services-Serving Wire Center refers to the central office containing SwitchLink Plus Services switching equipment.

SwitchLink Plus Services-Serving Area is defined by the technical limitations of each specific service arrangement and in the Company's judgment is necessary to meet the data transmission specifications without excessive degradation of the service.

SwitchLink Plus Services Extension Capability refers to the facilities and equipment necessary to extend a SwitchLink Plus Services Access Line for certain customers who are served by a Serving Wire Center not equipped with SwitchLink Plus Services Service Arrangement.

SwitchLink Plus Services Extension Line refers to a SwitchLink Plus Services Access Line when the service is provided using the SwitchLink Plus Services Extension Capability.

(1) Grandfathered service limited to existing customers at existing locations as of April 7, 2002.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 23

Original Sheet No. 2

SWITCHLINK PLUS SERVICES (1)

III. REGULATIONS

A. SwitchLink Plus Services are provided subject to the availability of appropriately equipped digital serving wire centers and facilities. The Company is under no obligation to provide SwitchLink Plus Services at a distance from the serving wire center that exceeds the technical limitations of the service.

B. The Company shall not be responsible if changes in any of its equipment, operations, or procedures utilized in the provision of SwitchLink Plus Services render any facilities provided by a customer obsolete, require modification or alteration of such equipment or system, or otherwise affect its use of performance. In such instances, the Company will notify customers of such changes.

C. SwitchLink Plus Service requires compatible data units be utilized at the originating and terminating ends of the transmission to transmit and receive the data at the 56 Kbps speed. Customer premise equipment associated with SwitchLink Plus Services is subject to the limitations specified in the Bell Communications Research, Inc. Technical Reference, "DATAPATH* Network Access Interface Specifications," TR-EOP-000277.

D. For SwitchLink Plus Service transmissions over interexchange facilities, the carrier chosen by the subscriber must be capable of passing 56 Kbps data transmission end-to-end over a digital network.

E. Service is available on a month-to-month basis with a minimum billing period of one month.

F. Touch-Tone service and equipment is required for each SwitchLink Plus Services Access Line.

G. Directory listings will be furnished for SwitchLink Plus Services in accordance with the regulations set forth in Section 5 of the General Exchange Tariff; however, there is no charge for non-published SwitchLink Plus Services telephone numbers.

H. Temporary suspension of service at the request of the customer is not allowed.

I. Regulations for Interruptions of Service apply as specified in the General Exchange Tariff.

(1) Grandfathered service limited to existing customers at existing locations as of April 7, 2002.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 23

Original Sheet No. 3

SWITCHLINK PLUS SERVICES (1)

IV. RATES

Monthly NRC A. SwitchLink Plus Service per Access Line [1FLCSW(PL)] $95.00 $223.00

Note: SwitchLink Services access lines utilizing the long distance network will have the applicable Message Telecommunications Service (MTS) toll charges billed to the originating end. MTS toll charges will be rated from the exchange rate center of the SwitchLink Plus Services-Service Wire Center.

B. SwitchLink Plus Services are subject to all general regulations and rates applicable to individual business lines as outlined in the General Exchange Tariff and in United's Federal and other State Tariffs.

C. Optional Features (e.g., speed dial) are available at the rates provided in the applicable sections of the General Exchange Tariff.

Monthly Rate

D. SwitchLink Plus Services Mileage rates are Extension Line specified in United's IntraLATA Services Digital Link Service Tariff.

Mileage is measured in airline miles between the SwitchLink Plus Services Serving Wire Center and the customer's serving wire center.

E. Service Connections charges in Section 17 of the General Exchange Tariff are applicable to SwitchLink Plus Services service establishment.

If special or unusual line conditioning is required or unusual installations or customer requirements occur, additional time and material charges may apply for any of the above services.

(1) Grandfathered service limited to existing customers at existing locations as of April 7, 2002.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 24

Original Sheet No. 1

INFO-LINK

I. GENERAL

INFO-LINK is a toll-free, one-way service which allows end users to receive non-voice connection to an Internet Service Provider (ISP) located in a Telephone Company specified foreign exchange. INFO-LINK is intended to be a low-cost optional connection path offered only in exchanges that are not currently served by an ISP.

II. GENERAL REGULATIONS

A. INFO-LINK is designed and intended for the exclusive use of end user customers of the Telephone Company. INFO-LINK is not to be shared, resold or used in any configuration of customer-provided equipment with the intent of reselling this service. This service is available to interexchange carriers or other telecommunications service providers for administrative trunks only.

B. An Internet Service Provider (ISP) is defined as an Enhanced Service Provider, whose services must include access to the Internet.

C. It is the responsibility of the Telephone Company to determine what services meet the criteria of an ISP. The sole purpose of the service offering is to allow affordable connection for United’s customers to the Internet. Enhanced Service Providers who provide services which do not include electronic data transfer to and from the Internet will not be considered ISPs.

D. INFO-LINK is designed only to provide local one-way dialing to the Internet. This service is restricted to the transfer of electronic data. Voice traffic in conjunction with this service is prohibited.

E. Unless otherwise specified, INFO-LINK is subject to the Rules and Regulations applying to all customer contracts as specified in the General Exchange Tariff of the Telephone Company.

F. This service will be offered to end users only within the exchanges specified in VI.A.

G. The minimum service period for subscription to INFO-LINK is one month and is billed one month in advance.

H. INFO-LINK rates are incremental to charges paid by the customer for other services of the Telephone Company. Rates are on a per-line basis. This service can be used only in conjunction with Touch Tone Service and One-Party or Trunk Local Exchange Service.

I. INFO-LINK will not be offered in conjunction with any Local Measured Service.

J. When the mandatory local calling scope of any exchange specified in VI.A. extends to include the Athens exchange, INFO-LINK will no longer be offered in that exchange.

III. MONTHLY RATES

INFO-LINK service:

Service Rate

Residential $5.00 Business $7.50

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 24

Original Sheet No. 2

INFO-LINK

IV. LIMITATION OF THE TELEPHONE COMPANY

A. Liability for damages arising from the inability of this service to support services of an ISP is limited to the cost of subscribing to INFO-LINK.

B. INFO-LINK only provides one-way dialing to a pre-determined ISP in a foreign exchange. The Telephone Company does not have the ability to monitor or restrict data provided through the connection to ISPs and is in no way responsible for the data content.

V. OBLIGATION OF THE CUSTOMER

A. The customer is responsible for purchasing any hardware or software necessary to access or utilize services of an ISP.

B. Any hardware or software used to access or utilize the services of an ISP should be purchased only after customer verification that INFO-LINK is technically supported at the desired customer premise.

C. The end user is responsible for monitoring data received from the Internet Service Provider.

D. At the time of order, the customer will be asked to identify their ISP to assure service functionality.

VI. AVAILABILITY

INFO-LINK is only available within the exchanges shown below:

A. INFO-LINK Exchange ISP Market

Chandler Athens Kerens Athens Neches Athens Palestine Athens Tucker Athens Troup Athens

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 25

Original Sheet No. 1

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

I. BASIC RATE INTERFACE (BRI)

A. General

1. Integrated Services Digital Network - Basic Rate Interface (ISDN-BRI) is a local exchange telecommunications service that provides integrated voice and data communications capability. ISDN-BRI Service supports the simultaneous transmission of voice and data over a single exchange access line.

ISDN-BRI Service provides a customer two B-Channels with transmission speeds up to 64 Kbps each and one 16 Kbps D-Channel. The service provides switched communication paths providing end user access to a variety of network services and features including data, voice and video, which conform to internationally developed, published and recognized standards generated by the International Telecommunications Union.

2. Service Capabilities

a. ISDN-BRI Service consists of three distinct channels delivered to the customer’s premises: two B (bearer) channels and one D (delta) channel. This is also known as 2B+D. ISDN-BRI Service is not available in other channel configurations of 1B+D or 0B+D.

b. The B-Channel carries voice and/or data communications at speeds up to 64 Kbps, from the customer’s premises, over the loop facility, to the central office. Packet data services are not available over the B-Channel.

c. The D-Channel carries administrative signaling at 16 Kbps for call-control for either a voice or data B-Channel call on the ISDN-BRI line. The D-Channel does not have voice capability. Packet data services are not available on the D- Channel.

d. Customers subscribing to ISDN-BRI Service must comply with ISDN Basic Rate Network Interface specifications as specified by the Company. The ISDN Basic Rate Interface is comprised of a limited set of standard user-network interfaces. The BRI customer premises equipment (CPE) located at the customer premises must be compatible with the network interface. This interface is defined as follows:

A two-wire interface is the physical interface between a central office switch equipped with ISDN and the customer premises equipment which is necessary for terminating a telephone circuit or facility at the customer premises.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 25

Original Sheet No. 2

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

I. BASIC RATE INTERFACE (BRI) (Continued)

A. General (Continued)

3. Standard Features

a. Closed User Group – Allows the user to establish sub-networks within which the members of the Closed User Group can communicate. Each data terminal in a Closed User Group can be arranged in one of the following modes:

1) Outgoing Access – The data terminal originates outgoing calls only. These calls may terminate within or out of the Closed User Group.

2) Incoming Access – The data terminal receives incoming calls only. These calls may terminate within or out of the Closed User Group.

3) Incoming Calls Barred – The data terminal originates outgoing calls only to the data terminals in the Closed User Group with which it is associated.

4) Outgoing Calls Barred – The data terminal receives incoming calls only from the data terminals in the Closed User Group with which it is associated.

5) Unrestricted Access – The data terminal receives and originates both incoming and outgoing calls.

b. Configuration Group – Associates a button or buttons of an ISDN-CPE station to a feature or group of features. Each different telephone set button arrangement requires that a different Configuration Group be assigned.

c. Call Pickup – Originating and Terminating – This feature allows a station user to answer any call within an associated predesignated pickup group. If more than one line within the pickup group has an unanswered incoming call, the call to be answered is selected by the central office switching system.

d. Additional Call Offering (ACO) – This feature allows multiple call appearances per telephone number (B-Channel) per telephone set. Example: A customer can put up to 3 calls on hold and receive another call on the phone, with all calling parties dialing the telephone number associated with voice on B- Channel.

e. Multi-line Hunt Group – This feature is limited to hunting within ISDN-BRI lines and on an individual customer location basis. Directory numbers within the Multi-line Hunt Group may not have multiple call appearances.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 25

Original Sheet No. 3

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

I. BASIC RATE INTERFACE (BRI) (Continued)

A. General (Continued)

4. Service Capability Packages(1)

a. Through the North American ISDN Users’ Forum, a set of ISDN Service Capability Packages have been defined and given a letter designation. Each of the Service Capability Packages describes a specific interface configuration as well as the features and capabilities of that interface. Detailed technical specifications are defined for each of the Service Capability Packages. These packages have been established to help simplify the ordering, provisioning, and installation of ISDN-BRI Service.

b. The Standard ISDN-BRI Package (Package S) is provided in conjunction with Individual Residence and Business, Key Trunk and Centrex Service Local Exchange Service. Packages H and L are provided in conjunction with Key Trunk Local Exchange Service only. Customers shall subscribe to one of the following Service Capability Packages specifying the assignment of each B- Channel.

1) Standard ISDN-BRI Package (Package S) 1–B Alternate voice/data 1–B Alternate voice/data

2) Package H: (Key Telephone Systems only) 1-B Voice Only 1-B data only (Includes Additional Call Offering)

3) Package L: (Key Telephone Systems only) 1-B data only 1-B Alternate voice data (Includes Additional Call Offering)

(1) ISDN terminal equipment is the responsibility of the customer and must support the configuration, optional services, and features chosen by the customer.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 25

Original Sheet No. 4

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

I. BASIC RATE INTERFACE (BRI) (Continued)

A. General (Continued)

5. Optional Services and Features(1)

a. The ISDN-BRI Service offering provides the customer with the following optional features, where available:

1) Flexible Calling - This feature includes: Hold/Retrieve B-Channel Reservation Three-Way Conference Calling Add-on (previously held conference call) Drop Last Call Transfer No Transfer Restriction Consultation Hold

2) Six-Way Conference Calling, Drop, Hold, Transfer – This feature allows the customer to add up to five parties to an existing call. This feature is for voice calls only.

3) Automatic Callback (Repeat Dial) – This feature, as specified in Section 18 of this tariff, provides automatic callback to the last dialed number.

4) Call Forwarding – This feature, as specified in Section 18 of this tariff, provides the customer with Call Forwarding Variable, Call Forward Busy and Call Forward No Answer with Message Waiting Indicator, either Visual or Audible.

5) Caller ID with Name – This feature, as specified in Section 18 of this tariff, permits the customer to receive and display the calling party name and telephone number for calls placed to the customer.

(1) ISDN terminal equipment is the responsibility of the customer and must support the configuration, optional services, and features chosen by the customer.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 25

Original Sheet No. 5

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

I. BASIC RATE INTERFACE (BRI) (Continued)

A. General (Continued)

5. Optional Services and Features(1) (Continued)

a. The ISDN-BRI Service … (Continued)

6) Additional Directory Numbers – Additional Directory Numbers, as specified in Section 18 of this tariff, are available on each B-Channel in addition to the primary directory number assigned to the B-Channel. Additional Directory Numbers are subscribed to separately.

7) Loop Extension – ISDN-BRI Service is available only where the customer's service location is within the provisioning limitations as determined prior to installation of the service. This limitation is a cable plant distance of approximately 18,000 feet. The actual distance is dependent on decibel (db) loss and not just physical loop length. Should the customer's service location exceed said limitations, service will be provided where the Company has compatible facilities available, or where existing facilities can be made compatible by the addition of special equipment. This service carries an additional charge and will extend the loop to approximately 36,000 feet.

8) Feature Package 1 - This package includes: Flexible Calling Automatic Callback Call Forwarding Caller ID with Name

* ISDN terminal equipment is the responsibility of the customer and must support the configuration, optional services, and features chosen by the customer.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 25

Original Sheet No. 6

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

I. BASIC RATE INTERFACE (BRI) (Continued)

B. Regulations

1. This service is offered only where facilities and appropriate technology exist.

2. In exchanges where IntraLATA Presubscription has been implemented, only one InterLATA and one IntraLATA Carrier may be selected for all B-Channels associated with the same ISDN-BRI Service. Access via 101XXXX to other Interexchange Carriers is available.

3. A minimum service period of three months is required.

4. Two Primary Directory Numbers will be included with an ISDN-BRI Service, one for each B-Channel. If Additional Directory Numbers are required on either channel, an additional charge, as specified in Section 18 of this tariff, will apply for each additional number.

5. One directory listing will be provided with ISDN-BRI Service. Additional Listings are available as specified in Section 5 of this tariff.

6. ISDN-compatible customer premises terminal equipment is required for proper operation. It is the customer’s responsibility to provide necessary power and obtain such equipment.

7. The provisions for temporary Suspension of Service at the customer’s request, as defined in Section 19 of this tariff, do not apply to ISDN-BRI Service.

8. This service is available only from central offices that have the necessary facilities to provide ISDN-BRI Service on the standard network platform. In the event a customer is provided service from a non-ISDN compatible central office, the Telephone Company will provide ISDN-BRI Service from an alternative serving central office as designated by the Telephone Company. This provision is accomplished by utilizing a 'hubbing' architecture and the subscriber may be required to accept a foreign NXX. Due to the nature of the 'hubbing' architecture and the use of a foreign NXX, the local calling area (e.g., Extended Area Service) may change.

When ISDN functionality becomes available from the central office that normally serves this subscriber, ISDN-BRI Service will be provided from that office and the subscriber may be required to accept a different NXX. If the subscriber chooses to continue ISDN-BRI Service from the alternative serving central office, all charges applicable to Foreign Exchange Service, as defined in Section 9 will apply in addition to the rates and charges included in this section.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 25

Original Sheet No. 7

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

I. BASIC RATE INTERFACE (BRI) (Continued)

B. Regulations (Continued)

8. This service is available only from central offices ... (Continued)

Similarly, if a subscriber requests ISDN-BRI Service from an alternative serving central office other than that designated by the Telephone Company, all charges applicable to Foreign Exchange Service as defined in Section 9 will apply in addition to the rates and charges included in this section.

Universal Emergency Number Service 9-1-1 calls placed over ISDN-BRI lines provisioned via this arrangement will be identified as the foreign service central office NXX and not the non-ISDN compatible central office NXX. The Telephone Company shall not be liable for any loss or damages arising from emergency calls placed from ISDN-BRI lines provisioned via a foreign serving central office.

9. ISDN-BRI Service does not provide for the transmission of packet data on either the D- Channel or one of the B-Channels.

10. ISDN-compatible terminal equipment is a requirement for operation and is the customer’s responsibility. This equipment is dependent upon commercial power and not power from the Telephone Company's central office. For their safety and well being, all ISDN customers are encouraged to maintain a non-ISDN access line on the premises for emergency calls in the event of a loss of commercial electrical power. In the event a subscriber elects to disconnect or not maintain a non-ISDN access line, the customer assumes full responsibility for telephone service in the event of an emergency.

11. ISDN-BRI lines may be purchased out of this tariff to be associated with Centrex Service, as defined in Section 15 of this tariff. Terms and conditions for Centrex Service will apply to these ISDN-BRI lines except as otherwise stated in this section. Optional features compatible with ISDN-BRI Service may be purchased from the Centrex Optional Features section of this tariff as well as features unique to ISDN lines from the Optional Features in this section.

ISDN-BRI lines associated with Centrex Service may be purchased only for those features from the Centrex Service section of this tariff. ISDN-BRI Service can be provisioned in the same Centrex customer group if, and only if, the customer group is resident in an ISDN equipped host or remote office. All other Centrex customers can subscribe to ISDN-BRI Service; however, the service will be provisioned as a stand- alone service and will not be included in the customer group.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 25 First Revised Sheet No. 8 Cancels Original Sheet No. 8

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

I. BASIC RATE INTERFACE (BRI) (Continued)

B. Regulations (Continued)

12. ISDN-BRI Service may be terminated in key telephone systems that are ISDN compatible.

13. The ISDN-BRI Multi-line Hunt Group, as specified in this tariff as part of the standard ISDN package, is available exclusively with ISDN-BRI Service and cannot be provisioned in conjunction with non-ISDN lines.

14. ISDN-BRI Service is not offered in conjunction with Local Measured Service or PBX Trunk Local Exchange Service.

C. Application of Rates

1. ISDN-BRI Service is offered on an unlimited use basis. Long Distance (Local Toll) charges apply when voice or data calls are completed outside the customer’s designated Local Calling Area or Expanded Local Calling Service exchanges. When two simultaneous B-Channels are combined for a maximum data speed of 128 Kbps, the call will be billed as if two calls were dialed by the originating customer.

2. The monthly rates for Service Capability Packages are applied on a per package basis. The monthly rates for the Optional Features and Feature Package 1 are applied on a per Service Capability Package basis.

3. The ISDN-BRI monthly rates are in addition to the applicable Individual Residence or Business, Key Trunk, or Centrex Service access line rates. Charges for applicable (C) Extended Area Service and Expanded Local Calling Service apply for Residence customers in conjunction with the appropriate access line. These rates vary by (C) service area and can be found in the Company's Local Exchange Tariff. All applicable state and federal charges will also apply.

ISSUED: August 18, 2008 EFFECTIVE: August 28, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 9 Cancels Original Sheet No. 9

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

I. BASIC RATE INTERFACE (BRI) (Continued)

C. Application of Rates (Continued)

4. The Nonrecurring Charge for ISDN-BRI Service Capability Package installation will be discounted 50% when a customer commits to a 12-month service period or 100% when a customer commits to a 24-month service period. If termination of service prior to the end of the commitment occurs, the customer is responsible for payment of the discounted amount of the Nonrecurring Charge, which represents the installation charge initially waived.

However, this termination requirement will not apply when the customer converts to a next generation service offering of a separately tariffed service, provided that:

a. The service period for the new service offering is a minimum period equal to or exceeding the remaining service period of the disconnected arrangement, whichever is greater; and

b. The service orders to install the new service and disconnect the old service are related together, and there is no lapse in service between installation of the new service and disconnection of the existing service; and

c. The service orders are for the same customer at the same location.

Integrated Services Digital Network - Basic Rate Interface (ISDN-BRI) to: Integrated Services Digital Network - Primary Rate Interface (ISDN-PRI) is an (D)(T) example of a next generation service offering. (T)

5. ISDN-BRI Service provides for one Configuration Group to be established at the initial implementation of service. Subsequent additions of Configuration Groups or in excess of one group on the initial establishment of service will be charged an installation charge per Configuration Group.

6. A Change Charge will apply for a database change subsequent to the installation of an ISDN-BRI Service. This includes changing, adding, or deleting features or feature packages, directory numbers, or number appearances.

7. Service Connection and Service Charges specified in Section 17 of this tariff apply if the charge is not specified in this tariff.

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 25

Original Sheet No. 10

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

I. BASIC RATE INTERFACE (BRI) (Continued)

D. Rates and Charges

SAE Monthly Codes Rate NRC 1. Service Capability Packages(1)

Standard ISDN-BRI Package 1FLCBRC (S) $38.30 $122.72 Package S 1FLCBRI (S)

Package H 1FLCBRC (H) 38.30 122.72 1FLCBRI (H)

Package L 1FLCBRC (L) 38.30 122.72 1FLCBRI (L)

2. Optional Features SAE Monthly a. Individual Features Codes Rate

Flexible Calling FFXISBC, FFXISBR $2.89 Six-Way Conference Calling FSXISBC, FSXISBR 2.76 Automatic Callback (Repeat Dial) See Sec. 18 Call Forwarding See Sec. 18 Caller ID with Name See Sec. 18 Additional Directory Number See Sec. 18 Loop Extension MCSXNDC, MCSXNDD 20.20

b. Feature Packages

Feature Package 1 FPKISBC, FPKISBR 12.00 Flexible Calling Automatic Callback Call Forwarding Caller ID with Name

(1) The ISDN-BRI Service rates set forth above are in addition to the applicable Individual Residence or Business, Key Trunk, or Centrex access line rates.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 11 Cancels Original Sheet No. 11

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 12 Cancels Original Sheet No. 12

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 13 Cancels Original Sheet No. 13

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 14 Cancels Original Sheet No. 14

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 15 Cancels Original Sheet No. 15

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 16 Cancels Original Sheet No. 16

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 17 Cancels Original Sheet No. 17

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 18 Cancels Original Sheet No. 18

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 19 Cancels Original Sheet No. 19

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 20 Cancels Original Sheet No. 20

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 21 Cancels Original Sheet No. 21

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 22 Cancels Original Sheet No. 22

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 23 Cancels Original Sheet No. 23

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 24 Cancels Original Sheet No. 24

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 25 Cancels Original Sheet No. 25

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 26 Cancels Original Sheet No. 26

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 27 Cancels Original Sheet No. 27

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 (T) First Revised Sheet No. 28 Cancels Original Sheet No. 28

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

(M)

(M) Material previously appearing on this sheet now appears in Section 125.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 2nd Revised Sheet No. 29 Cancels 1st Revised Sheet No. 29

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE ▲

A. General

1. Integrated Services Digital Network - Primary Rate Interface (ISDN-PRI) Business Service is a local exchange offering supported by the ISDN architecture.

2. ISDN-PRI Business Service provides a method of access to the telecommunications network called Primary Rate Access. Primary Rate Access is an ISDN based, DS1 access link to the telecommunications network and provides integration of multiple voice and data transmission channels on the same line. The service provides connectivity between an ISDN-PBX or other ISDN-compatible CPE and a serving central office. The basic channel structure for Primary Rate Access is twenty-three 64 Kbps B-Channels and one 64 Kbps D-Channel. After purchasing the original 23 B-Channel plus one D-Channel configuration, the customer may purchase additional ISDN-PRI Business service arrangements in 24-B Channel, 23-B + D Channel, 11B + D Channel, or 12-B Channel increments.

These channels may be used to connect the customer's CPE to the Public Network (D) (i.e., outward, inward, and two-way trunks).

3. ISDN-PRI Business Service provides network communication paths providing the end user with access to a variety of network services and features including data, voice and video which conforms to internationally developed, published, and recognized standards generated by the International Telecommunications Union (ITU).

4. ISDN-PRI Business Service and its optional features and functions are provided within a LATA from central offices where appropriate ISDN facilities are available as determined by the Company. Service inquiries will be necessary to determine availability. Construction Charges may apply as specified in Section 6 of this tariff.

▲ Central Telephone Company of Texas dba CenturyLink concurs in the charges and regulations governing this service.

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 First Revised Sheet No. 30 Cancels Original Sheet No. 30

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued)

B. Regulations

1. The customer is responsible for providing Customer Premises Equipment (CPE) that is compatible with ISDN-PRI Business Service.

2. The Company shall not be responsible if changes in any of the equipment, operations or procedures of the Company utilized in the provisioning of ISDN-PRI Business Service render any facilities provided by the customer obsolete or require modification or alteration of such equipment or system or otherwise affect its use or performance.

3. Digital transmission rates at speeds less than those indicated may be accomplished as a function of the particular CPE furnished by the user.

4. Temporary Suspension of Service at the customer‘s request, as defined in Section (T) 19 of this tariff, is not available for ISDN-PRI Business Service. (T)

5. Service Charges specified in Section 17 of this tariff apply to any charges not specified in this section.

6. The minimum service period for ISDN-PRI Business Service is six months. (M)

(M)

7. Telephone numbers transmitted via the Optional or Standard Incoming Call Identification feature are intended solely for the use of the ISDN-PRI Business Service subscriber. Resale of this call identification information is prohibited by this tariff.

8. Non-Facility Associated Signaling (NFAS) provides the capability to serve multiple DS1's via a single D-Channel. This feature can be ordered where switch capabilities exist as determined by the Company. When NFAS is selected, the customer must order one ISDN-PRI Business Service arrangement that includes 23 B-Channels and 1 D-Channel. After the first 23-B + D arrangement is purchased, a customer may purchase additional arrangements in increments of 12-B or 24-B-Channels. The D-Channel activated on the initial arrangement serves the additional arrangements. The Company recommends that the quantity of B-Channels supported by a single D-Channel not exceed 95.

(M) Material previously appearing on this sheet now appears on Sheet No. 42.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 First Revised Sheet No. 31 Cancels Original Sheet No. 31

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued)

B. Regulations (Cont'd)

9. This service is available only from central offices which have the necessary facilities to provide ISDN-PRI on the standard network platform. In the event a customer is served by a non-ISDN capable central office, the Company may provide ISDN-PRI Business Service from an alternative serving central office, as designated by the Company. The subscriber may be required to accept a foreign NXX. When a foreign NXX is required, mileage charges applicable to TransLink Service, as specified in the Company’s IntraLATA Services Tariff, will apply in addition to the rates and charges included in this section. The local calling area may not be the same as the local calling area of the exchange in which the customer is located.

When ISDN functionality becomes available from the central office that normally serves this subscriber, ISDN-PRI Business Service will be provided from that office and the subscriber may be required to accept a different NXX. If the subscriber chooses to continue ISDN-PRI Business Service from the alternative serving central office, all charges applicable to TransLink Service, as specified in the Company’s IntraLATA Services Tariff will apply in addition to the rates and charges included in this section.

Similarly, if a subscriber requests ISDN-PRI Business Service from an alternative serving central office other than that designated by the Company, all charges applicable to TransLink Service, as specified in the Company’s IntraLATA Services Tariff, will apply in addition to the rates and charges included in this section.

Emergency 911 calls placed over ISDN-PRI Business Service provisioned via a foreign central office serving this arrangement will be identified as the alternative serving central office NXX and not the non-ISDN capable central office NXX. The Company shall not be liable for any loss or damages arising from emergency calls placed from ISDN-PRI Business Service provisioned via an alternative serving central office.

10. This service is available only where the customer’s service location is within the provisioning limitations as determined prior to installation of the service. Should the customer’s service location exceed said limitations, service will be provided where the Company has electronically compatible facilities available, or where existing facilities can be made compatible.

11. Rotary hunt functionality, at no additional charge, is available with ISDN-PRI Business Service. This functionality increases the likelihood of an incoming call being completed over an ISDN-PRI B-channel by allowing calls made to a busy (T) number to be completed to another idle line. The functionality is exclusively (T) within the B-channels of a single ISDN-PRI Business Service arrangement or between multiple ISDN-PRI Business Service arrangements and is not allowed between ISDN-PRI Business Service arrangements and other services, including but not limited to, Business Individual Line Service. The total number of Primary Rate Interfaces in a single, standard hunting configuration may not exceed 50.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 First Revised Sheet No. 32 Cancels Original Sheet No. 32

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued)

B. Regulations (Cont'd)

12. ISDN-PRI Business Service is not offered in conjunction with Local Measured Service.

13. In order to maintain the quality of ISDN-PRI Business Service, the Company reserves the right to perform preventative maintenance and software updates to the network. The Company has classified this maintenance as indicated below:

Scheduled Maintenance

Scheduled maintenance is used to perform such functions as hardware and software upgrades and network optimization. The Company will perform these tasks in a maintenance window that is anticipated to minimize disruption of customer service and activity. The Company will provide advance notice of all scheduled maintenance.

Demand Maintenance

Demand Maintenance may occur as a result of unexpected events and is used when ISDN-PRI network elements are in jeopardy. The Company will perform this type of maintenance at its discretion. Due to the nature of demand maintenance prior notification may not be possible, however, the customer will be informed when the maintenance has been completed.

14. One Directory Listing will be provided per D-Channel. Additional Directory Listings are available as specified in Section 5 of this tariff.

C. Definitions

1. B-Channel - A bi-directional synchronous channel capable of supporting 64 Kbps of digital transmission.

2. D-Channel - A digital, signaling only channel for call establishment that is capable (T) of supporting 64 Kbps of digital transmission. (T)

3. Primary Rate Access Line – The facility between the serving central office and the customer’s premises. Provides transport for up to twenty-four (24) 64 Kbps.

4. Primary Rate Interface – The central office switching elements that are dedicated to a customer’s ISDN-PRI service.

5. Primary Rate Channels – B-Channels or D-Channels, as defined above.

6. Rotary Hunt Functionality - A service arrangement which allows calls made to a busy number to be completed to another idle line in that rotary number group.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 First Revised Sheet No. 33 Cancels Original Sheet No. 33

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued)

D. Features

1. Standard Features

Clear Channel Capability - The B-Channels on ISDN-PRI are clear, since all signaling and control functions are handled by the D-Channel. This allows all 64 Kbps on each B-Channel to be used for customer information.

D-Channel Control – Permits a single D-Channel to provide signaling and (Z) control for one or more IDSN-PRI Business Service arrangements when, after subscribing to an initial 23-B+D configuration, a customer requests additional arrangements consisting of 24 B-channels. (Z)

Digital Voice Transmission - All voice calls are transmitted using digital signaling.

Direct Inward Dialing (DID) Signaling - Permits incoming dialed calls from the exchange network to reach a specific number served by customer premises equipment (CPE) without the assistance of an attendant. The central office will outpulse digits to the CPE that can further process the calls as desired. The rates and charges for DID telephone numbers are in addition to the ISDN charges and are provided in Section 18 of this tariff.

Dynamic Allocation of Bandwidth - Allows the voice and data services to share B- Channels and arrange them as a single trunk group. This allows incoming and outgoing voice and data calls to utilize B-Channels on a call by call basis. Without this capability, each service will have a dedicated B-Channel.

Incoming Call Identification (Caller ID) - When provided by the originating carrier's facilities, incoming call identification transmits the telephone number of the calling party to the subscriber via the D-Channel subject to availability. Incoming call identification is provided via the D-Channel associated with the incoming calls on a B-Channel to a PBX.

PBX Station ID Capability - Allows the station user's number (calling party) to be transmitted over the ISDN-PRI D-Channel from Direct Inward Dialing equipped CPE PBXs that use ISDN-PRI. This number is provided by the originating station and must have an associated Direct Inward Dialing telephone number working in the central office.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 2nd Revised Sheet No. 34 Cancels 1st Revised Sheet No. 34

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued)

D. Features

2. Optional Features

2 B-Channel Transfer - If a call terminates at a given location, but is then forwarded to another location, two trunks between the Central Office and the original device are typically employed for the duration of the forwarded call. 2 B-Channel Transfer allows the central office switch to establish the call directly to the final destination and release the trunks going in and out of the forwarding device. This saves the customer PRI facilities and provides for more efficient use of the network. A common use of 2 B- Channel Transfer is illustrated below.

1. Outside station Initiates call to 555-1234. 2. DMS signals incoming call to PBX

1. Call is initated to 555-1234

ISDN PRI 555-1234 (Forwarded to Voice Mail) PBX #1 3. PBX notifies DMS to transfer call. Public switch ISDN 4. Call completes to Voice Mail. PRI

PBX #2 PB X #2

Voice Mail

Call-by-Call/Integrated Service Access Feature Capability - Allows the customer to dynamically allocate the use of channels for ISDN-PRI Business Service. The customer may also choose voice or data transmission on a per call basis. In addition, the customer may also choose to subscribe to more services than channels. The Customer Premises Equipment signals the local central office as to which type of service (inward/outward trunk) to access for each call. (D)

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 First Revised Sheet No. 35 Cancels Original Sheet No. 35

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued)

D. Features (Cont'd)

2. Optional Features (Cont’d)

Circular Hunt - Circular Hunt provides the most efficient hunting sequence available, (M) plus allows for much larger trunk groups than the standard ISDN-PRI packages. With circular hunt, an incoming call is completed to the next available trunk (bearer) in sequence starting from the last trunk selected. This can occur across multiple PRI facilities. The feature can support up to 220 Primary Rate Interfaces in a single hunting configuration. The standard limit is 50. (M) (M1) D-Channel Backup – Provides backup for the D-Channel for a customer with multiple (M) ISDN PRI Business Service arrangements by automatically switching signaling capability over to another D-Channel if service to the primary D-Channel is interrupted. (M)

E911 Call Screening - E911 Call Screening provides for the transmission of PBX or Key System station information via the ISDN-PRI facility to local emergency services authorities. This provides for the possible identification of the specific location on a customer's premises where a 911 call originated. This option is available only in communities where local emergency authorities support the service in conjunction with the Company’s Private Switch Database Service, associated with E911 Service. This service is only available in conjunction with National ISDN-2 Protocol.

Incoming Call Identification (Caller ID Name and Number) - Provides the customer with the telephone number and name of the calling party. Incoming call identification is provided via the D-Channel associated with incoming calls on a B-Channel to a PBX. The Customer's equipment must be compatible with this service. Calling Number Delivery Blocking is available as stipulated in Section 18 of this tariff.

Main Number ID Capability – Available in lieu of the standard PBX Station ID (N) Capability feature, this feature allows only the main number associated with an ISDN-PRI Business Service arrangement to be transmitted and available for display when a call is placed from any station associated with an ISDN-PRI Business Service arrangement. (N)

National ISDN-2 Protocol - National ISDN-2 Protocol is a communication protocol that governs interactions between the customer's equipment and the telephone network. This protocol is more advanced than the standard ISDN-PRI protocol. Most CPE is capable of using the ISDN-2 Protocol.

Network Ring Again - Enables the customer to complete calls to a busy station without continually redialing. Certain equipment restrictions may apply.

(M) Material has been moved within this page.

(M1) Material previously appearing on this sheet now appears on Sheet No. 34.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 2nd Revised Sheet No. 36 Cancels 1st Revised Sheet No. 36

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued)

E. Service Components

1. Each ISDN-PRI Business Service arrangement consists of the following functional components:

- Primary Rate Access Line - Primary Rate Interface - Primary Rate Channels

a. Primary Rate Access Line - Provides a four-wire access loop from the customer premises to the serving central office. The transmission via this loop supports Clear Channel Capability. One Primary Rate Access Line is provided for every 24 channels.

b. Primary Rate Interface - Provides the multiplexing to support up to twenty- three (23) B-Channels at 64 Kbps and one (1) D-Channel for signaling also at 64 Kbps. When NFAS is ordered, the Primary Rate Interface can provide up to twenty-four B-Channels at 64 Kbps. Primary Rate Interfaces will be provisioned as two-way.

c. Primary Rate Channels - The initial ISDN-PRI Business Service arrangement consists of 24 channels (23-B + D) with unlimited usage that will allow either voice or data transmission up to 64 Kbps. Additional arrangements may be ordered in 24-B Channel, 23-B + D Channel, 11B + D Channel, or 12-B Channel increments.

1) Voice calls may be completed to both ISDN and non-ISDN lines.

2) Data Transmission on the B-Channels will be at 64 Kbps within the switch and between ISDN-PRI compatible central offices. ISDN-PRI interconnection to non-ISDN-PRI equipped central offices may be potentially subjected to analog transmission or sub-rated to 56 Kbps.

3) The customer may choose to subscribe to additional non exchange based services. The subscription to these services is in addition to the (D) charges for ISDN-PRI Business Service.

2. Each Primary Rate Access Line (may be active with a corresponding number of services (i.e., inward/outward trunks) selected. The customer may also choose to (D) subscribe to more services than channels. The Customer Premises Equipment signals the local central office as to which type of service (inward/outward trunk) to (D) access for each call.

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 First Revised Sheet No. 37 Cancels Original Sheet No. 37

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued)

F. Application of Rates

1. Nonrecurring charges will not be applicable for ISDN-PRI Business Service arrangements that are updated from an existing 1.544 Mbps service to ISDN-PRI (T) Business Service.

2. The initial ISDN PRI Service arrangement at any location must include a 23-B + D configuration, after which additional arrangements may be ordered with 23-B + D Channels, 24-B Channels, 11B + D Channels, or 12-B Channels.

3. Rates and charges for optional features and functions are applied to each ISDN-PRI Business Service arrangement for which a separate Primary Rate Interface is required. For example, when a customer has the initial 23-B+D configuration and three additional 12-B arrangements, three Primary Rate Interfaces are provided. The feature charge applies for each Primary Rate Interface over which the optional feature is activated.

G. Rates and Charges

1. ISDN-PRI Business Service Arrangement

An ISDN-PRI Business Service Arrangement is furnished between a serving central office and the customer's designated premises. The customer must initially subscribe to a 23-B + D configuration per location, after which additional arrangements may be either 23-B + D, 24-B, 11-B + D, or 12-B Channel configurations.

The rates, charges and regulations for Translink Service, as specified in the Company (M) IntraLATA Services Tariff, will apply in addition to the following rates for the interoffice facilities of an interexchange ISDN-PRI Business service arrangement. ISDN-PRI Business Service Arrangement is available at month-to-month rates (subject to minimum service period of six months) or under a Term Discount Plan (TDP) with a one, two, three or five year commitment period.

(M) Material moved within this page.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 First Revised Sheet No. 38 Cancels Original Sheet No. 38

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Cont'd)

G. Rates and Charges (Cont’d)

1. ISDN-PRI Business Service Arrangement (Cont’d)

(D)

a. ISDN-PRI Business Service Arrangement with Two-Way Primary Rate Interface (T) (23-B + D and 24-B)

Nonrecurring Nonrecurring Monthly Rate Charge (Initial) Charge (Add’l*) Month to month ** $1,165.00 $650.00 $0.00 (T) One Year 1,010.00 450.00 0.00 Two Years 945.00 250.00 0.00 Three Years 885.00 0.00 0.00 Five Years 770.00 0.00 0.00

* Additional facilities must be installed at the same customer designated premises on the same trip and placed on the same service order.

** Month-to-month customers must subscribe to ISDN-PRI Business Service for a minimum (N) service period of sixmonths. (N)

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 First Revised Sheet No. 39 Cancels Original Sheet No. 39

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Cont'd)

G. Rates and Charges (Cont'd)

2. Optional Features Monthly Rate Nonrecurring Charge a. D-Channel Backup* each channel $ 50.00 $20.00

b. Network Ring Again Per Primary Rate Interface** (D) 160.00 0.00 (D)

c. Call-by-Call/Integrated Service Access Feature Capability Per Primary Rate Interface (D) 50.00 35.00 (D)

d. Incoming Call Identification (Caller ID Name and Number) Per Primary Rate Interface 100.00 0.00

e. 2 B-Channel Transfer** Per Primary Rate Interface 75.00 100.00

f. Circular Hunt** Per Primary Rate Interface 25.00 0.00 (R)

g. National ISDN-2 Protocol** Per Primary Rate Interface 0.00 0.00

h. E911 Call Screening** Per Primary Rate Interface (up to 100 station numbers) 125.00 0.00 (R)

* Available only to customers subscribing to more than one Primary Rate Interface. ** Certain equipment restrictions apply.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 First Revised Sheet No. 40 Cancels Original Sheet No. 40

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued)

G. Rates and Charges (Cont'd) Monthly Rate Nonrecurring Charge 3. Optional Feature Packages

a. Premium Package* Includes National ISDN-2 Protocol**, E911 Call Screening**, Incoming Call Identification (Caller ID Name and Number), Call-by-Call/Integrated Service Access Feature Capability, and 2 B-Channel Transfer** Per Primary Rate Interface $195.00 $150.00 (R) (M)

(M) 4. Service Charges (T)

a. Service Establishment Charges apply when a customer requests establishment of a new ISDN-PRI Business Service arrangement(s). Service Establishment Charges apply for each ISDN-PRI Business Service Arrangement that is separately ordered and/or installed. Service Establishment Charges consist of:

(1) A Service Order Charge as described in Section 17 of this Tariff applies for each order placed, for receiving and recording information, and processing the necessary data in connection with a customer's request for service establishment; and

(2) The applicable Nonrecurring Charge for an ISDN-PRI Business Service Arrangement. This charge covers engineering design, (T) common centralized testing and coordination. Nonrecurring charges do not apply for additional ISDN-PRI Business Service Arrangements installed at the same customer designated premises on the same trip and placed on the same service order. (D) (D)

(M)

(M) * Only available for customers whose ISDN-PRI Service arrangements include a Two-Way Primary Rate Interface under a Term Discount Plan.

** Certain equipment restrictions apply.

(M) Material previously appearing on this sheet now appears on Sheet No. 41.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 First Revised Sheet No. 41 Cancels Original Sheet No. 41

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued)

G. Rates and Charges (Cont'd)

4. Service Charges (Cont'd) (T)

b. Premises Visit Charges are applicable per ISDN-PRI Business Service (T)(M) arrangement, for the termination of a channel at a customer's premises or for termination change at the same premises. Only one Premises Visit Charge applies when more than one channel service of the same type is terminated or moved at the same premises at the same time. (M)

Premises Visit Charge, (M1) per ISDN-PRI Business Service arrangement $125.00 (T)(M1)

c. Service Change Charges are applicable for receiving and recording information (T)(M) and/or taking action in connection with a customer’s termination change at the same premises or transfer of service responsibility request, for processing the necessary data on an existing ISDN-PRI Business Service. A Service Change Charge is applicable for each ISDN-PRI Business Service associated with the customer request (in lieu of a Service Establishment Charge). (M)

a) For termination change at the same premises, physical, per ISDN-PRI Business Service Arrangement $165.00 (T)

b) For termination change at the same premises, Programming, per ISDN-PRI Business Service Arrangement 35.00 (T)

d. Move Charges apply for each ISDN-PRI Business Service arrangement moved (T) (M) to a new location in the same building or to a different location within the same central office serving area. The Move Charge is equal to the sum of the Service Change Charges plus the Premises Visit Charge. (T) (M)

(M2)

(M) Material previously appeared on Sheet No. 40. (M1) Material has been moved within this page. (M2) Material previously appearing on this sheet now appears on Sheet No. 42.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25 First Revised Sheet No. 42 Cancels Original Sheet No. 42

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued)

H. Term Discount Plan (TDP) (T)

1. Description (T)

a. Term Discount Plan commitment periods of one year, two years, three years (T)(M) or five years are available. (M)

b. The customer can extend TDP commitment periods at any time during the (T) (M1) term of the plan. The number of months accrued in the current plan will apply toward the new plan selected. The rates under the new TDP will not apply (N) (M1) retroactively towards the months accrued under the current TDP. (N)

c. At the end of the TDP service commitment period, the customer may subscribe (T) to a new TDP at the prevailing rates. If the customer does not select a new TDP, the prevailing rates applicable for the expired TDP will continue in effect for as long as the customer chooses to continue subscribing to the ISDN-PRI Business Service arrangements installed under the expired TDP. Additional ISDN-PRI Business Service arrangements installed after the TDP expiration date will not be eligible for the TDP rates and will be charged at the prevailing month to month rates unless the customer selects a TDP for those services.

2. Rate Changes (N)

a. Rate increases or decreases will automatically be applied to the monthly term (T) (M1) plan rates for the remaining term of the TDP.

b. If Company initiated rate increases causes the charges for the ISDN-PRI (T) Business Service under the TDP to increase by 10% or more in any plan year, Customer may cancel the TDP without incurring Early Termination Liability charges provided that the customer notifies the Company within 30 days after the effective date of the rate increase. The first 12 months of a TDP (N) (M1) commitment period constitute a plan year. Each subsequent 12 month increment constitutes an additional plan year.

3. Early Termination Liability (N)

a. Calculation of Early Termination Liability (T)

If a TDP Customer disconnects all or a portion of the ISDN-PRI Business (T) (M) Service prior to the expiration of the TPD, then a Termination Liability Charge will apply to those services that are disconnected. The Termination Liability Charge will be a one-time charge equal to the sum of 50% of the payments remaining for the rest of the TDP. If Construction Charges were applied to the service being terminated, any termination charges associated with Construction Charges will also apply. (M)

(M) Material previously appeared on Sheet No. 30. (M1) (M1) Material previously appeared on Sheet No. 41. (M2) Certain material previously appearing on this sheet now appears on Sheet No. 44.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25

Original Sheet No. 43

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued)

H. Term Discount Plan (TDP) (Con’td)

3. Early Termination Liability (Cont’d)

b. Waiver of Early Termination Liability

1) Customers will not be liable for Early Termination Liability under the following circumstances:

(a) Relocation within Central Office Serving Area

If a TDP Customer relocates an existing Service arrangement to a new location within the same building or to a different location within the same central office serving area prior to the expiration of a TDP, a Termination Liability Charge will not apply, and the number of months accrued at the prior location will carry over to the new location. Move Charges will apply for each arrangement relocated.

(b) Relocation to Different Central Office Serving Area

If a TDP Customer relocates an existing Service arrangement to a location in a different central office serving area, a Termination Liability Charge will not apply if Customer converts to a new TDP commitment period that is equal to or greater than the original TDP commitment period. The number of months accrued at the prior location under the original TDP will not carry over to the new location. Service Establishment Charges will apply for the ISDN- PRI Business Service arrangement(s) installed at the new location.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 25

Original Sheet No. 44

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)

II. INTEGRATED SERVICES DIGITAL NETWORK-PRIMARY RATE INTERFACE (ISDN-PRI) BUSINESS SERVICE (Continued) (N) H. Term Discount Plan (TDP) (Cont’d)

3. Early Termination Liability (Cont’d)

b. Waiver of Early Termination Liability (Cont’d)

1) Customers will not be liable for Early Termination Liability under the following circumstances:

(i) When a service or rate element under a TDP arrangement is (T) (M) disconnected prior to the expiration of the TDP commitment period as a result of a change in tariff jurisdiction and/or a customer requested upgrade to a next generation service offering, Termination Liability Charges will not apply under (T) the following conditions:

The service period of the new TDP for the new service offering is a period equal to or exceeding the remaining service period of the disconnected TDP, and

The service orders to install the new service and disconnect the old service are related, and there is no lapse in service between the installation of the new service and the disconnection of the old service, and

The service orders to install the new service and disconnect the old service are for the same Customer at the same location.

(ii) The Company will determine whether a replacement service (T) qualifies as a next generation service offering.

(iii) Nonrecurring charges and Service Charges for the new (T) service will apply according to the requirements of the new service. (M)

(M) Material appearing on this sheet previously appeared on Sheet No. 42.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 1 Cancels Original Sheet No. 1

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 2 Cancels Original Sheet No. 2

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 3 Cancels Original Sheet No. 3

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 4 Cancels Original Sheet No. 4

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 5 Cancels Original Sheet No. 5

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 6 Cancels Original Sheet No. 6

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) Second Revised Sheet No. 7 Cancels First Revised Sheet No. 7

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 8 Cancels Original Sheet No. 8

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 9 Cancels Original Sheet No. 9

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 10 Cancels Original Sheet No. 10

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 11 Cancels Original Sheet No. 11

RESERVED FOR FUTURE USE (T)

(D)

(D) ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) Third Revised Sheet No. 12 Cancels Second Revised Sheet No. 12

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 13 Cancels Original Sheet No. 13

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 14 Cancels Original Sheet No. 14

RESERVED FOR FUTURE USE (T)

(D)

(D) ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) Second Revised Sheet No. 15 Cancels First Revised Sheet No. 15

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) Second Revised Sheet No. 16 Cancels First Revised Sheet No. 16

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) Second Revised Sheet No. 16.1 Cancels First Revised Sheet No. 16.1

RESERVED FOR FUTURE USE (T)

(D)

(D) (D) ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 17 Cancels Original Sheet No. 17

RESERVED FOR FUTURE USE (T)

(D)

(D) ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) Fourth Revised Sheet No. 18 Cancels Third Revised Sheet No. 18

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) Fifth Revised Sheet No. 19 Cancels Fourth Revised Sheet No. 19

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) Fifth Revised Sheet No. 20 Cancels Fourth Revised Sheet No. 20

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) Fifth Revised Sheet No. 21 Cancels Fourth Revised Sheet No. 21

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) Fifth Revised Sheet No. 22 Cancels Fourth Revised Sheet No. 22

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) Fifth Revised Sheet No. 23 Cancels Fourth Revised Sheet No. 23

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) Fifth Revised Sheet No. 24 Cancels Fourth Revised Sheet No. 24

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 25 Cancels Original Sheet No. 25

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 26 (T) First Revised Sheet No. 26 Cancels Original Sheet No. 26

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 1 Cancels Original Sheet No. 1

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No.2 Cancels Original Sheet No. 2

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 3 Cancels Original Sheet No. 3

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 4 Cancels Original Sheet No. 4

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 5 Cancels Original Sheet No. 5

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 6 Cancels Original Sheet No. 6

RESERVED FOR FUTURE USE (T)

(D)

(D) ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) Second Revised Sheet No. 7 Cancels First Revised Sheet No. 7

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 8 Cancels Original Sheet No. 8

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 9 Cancels Original Sheet No. 9

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 10 Cancels Original Sheet No. 10

RESERVED FOR FUTURE USE (T)

(D)

(D) (D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 11 Cancels Original Sheet No. 11

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 12 Cancels Original Sheet No. 12

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 13 Cancels Original Sheet No. 13

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) Second Revised Sheet No. 14 Cancels First Revised Sheet No. 14

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) Second Revised Sheet No. 15 Cancels First Revised Sheet No. 15

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 16 Cancels Original Sheet No. 16

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) Second Revised Sheet No. 17 Cancels First Revised Sheet No. 17

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) Second Revised Sheet No. 18 Cancels First Revised Sheet No. 18

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 19 Cancels Original Sheet No. 19

RESERVED FOR FUTURE USE (T)

(D)

(D) (D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 20 Cancels Original Sheet No. 20

RESERVED FOR FUTURE USE (T)

(D)

(D) (D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) Second Revised Sheet No. 21 Cancels First Revised Sheet No. 21

RESERVED FOR FUTURE USE (T)

(D)

(D) ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 27 (T) First Revised Sheet No. 22 Cancels Original Sheet No. 22

RESERVED FOR FUTURE USE (T)

(D)

ISSUED: December 9, 2015 EFFECTIVE: March 3, 2016 TX15-10

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 28 (T) Third Revised Sheet No. 1 Cancels Second Revised Sheet No. 1

DERIVED CHANNEL SERVICES

I. INDIVIDUAL VOICE CHANNELS FOR CUSTOM ACCESS SOLUTIONS

A. Description

1. Individual Voice Channels for Custom Access Solutions is an intraexchange digital service designed to provide for the integration of multiple voice channels over Custom Access Solutions as found in CenturyLink Operating Companies Interstate Service (T) Guide, Section 8.7. (T)

2. Individual Voice Channels are segregated from the data channels using a Digital Access and Cross-connect System (DACS) located in the Telephone Companies’ central office. The DACS will route the voice traffic to the serving wire center switching equipment. Individual Voice Channels may be provisioned with ISDN-PRI functionality upon request.

3. Customers subscribing to Individual Voice Channels for Custom Access Solutions are limited to a maximum of 20 Individual Voice Channels per 1.544 Mbps facility. Each channel is dedicated to the provisioning of Individual Voice Channels for Custom Access Solutions. Channels not activated will not be used for purposes other than providing Individual Voice Channels for Custom Access Solutions.

4. Customers subscribing to Individual Voice Channels for Custom Access Solutions must also order data channels at the same time from CenturyLink Operating (T) Companies Interstate Service Guide, Section 8.7, in one of the following (T) combinations:

Frame Relay Service Individual 256 Kbps 384 Kbps 512 Kbps 768 Kbps 1024 Kbps 1152 Kbps Voice (4 Channels) (6 Channels) (8 Channels) (12 Channels) (16 Channels) (18 Channels) Channels (1) 6 10 12 14 18 22 24 8 12 14 16 20 24 N/A 10 14 16 18 22 N/A N/A 12 16 18 20 24 N/A N/A 14 18 20 22 N/A N/A N/A 16 20 22 24 N/A N/A N/A 18 22 24 N/A N/A N/A N/A 20 24 N/A N/A N/A N/A N/A Shaded area reflects total channels utilized for each combination.

(1) A minimum of 12 Individual Voice Channels is required when provisioned with ISDN-PRI functionality and each configuration requires one D-channel. For example, when a customer subscribes to 12 Individual Voice Channels with ISDN-PRI functionality, the customer is provided with 11 B-channels and one D-channel.

ISSUED: April 8, 2014 EFFECTIVE: April 18, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 2

DERIVED CHANNEL SERVICES

I. INDIVIDUAL VOICE CHANNELS FOR CUSTOM ACCESS SOLUTIONS (Continued)

A. Description (Continued)

5. Individual Voice Channels may be equipped with the following features, where available:

a. Incoming Call Identification (Caller ID) – Caller ID provides the customer with the telephone number of the calling party and is intended solely for the use of the Individual Voice Channels for Custom Access Solutions subscriber.

6. Individual Voice Channels with ISDN-PRI functionality provides functionality equivalent to ISDN-PRI Service as described in Section 25 of this tariff. All standard features included with ISDN-PRI Service are standard for Individual Voice Channels with ISDN- PRI functionality. In addition, optional features available with ISDN-PRI Service are available with Individual Voice Channels with ISDN-PRI functionality, with the exception of D-Channel Backup and Circular Hunt. Optional features are provided at the rates and charges specified in Section 25 of this tariff on a per 1.544 Mbps facility basis.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 28 (T) First Revised Sheet No. 3 Cancels Original Sheet No. 3

DERIVED CHANNEL SERVICES

I. INDIVIDUAL VOICE CHANNELS FOR CUSTOM ACCESS SOLUTIONS (Continued)

B. Definitions

1. Digital Access and Cross-connect System (DACS) – A digital switching device for routing and switching T-1 lines, and DS0 portions of lines, among multiple T-1 ports. The DACS performs all the functions of a normal “switch” except connections are typically setup in advance of the call, not together with the call.

2. Custom Access Solutions – Provides for the integration of multiple voice and data channels over the same 1.544 Mbps facility, as referenced in CenturyLink Operating (T) Companies Interstate Service Guide, Section 8.7. (T)

C. General Regulations

1. The regulations and rates specified herein for Individual Voice Channels for Custom Access Solutions are in addition to the applicable regulations and rates in other tariffs and other sections of this tariff. Unless specified, the regulations for Individual Voice Channels for Custom Access Solutions apply in addition to the General Rules and Regulations set forth in Section 7 of this tariff.

2. Individual Voice Channels for Custom Access Solutions is provided subject to the availability of appropriate facilities as determined by the Company. Service inquiries will be necessary to determine availability.

3. Customer Premise Equipment (CPE) that is compatible with Individual Voice Channels for Custom Access Solutions is the customer’s responsibility to provision.

4. The Company shall not be responsible if changes in any of the equipment, operations or procedures of the Company utilized in the provisioning of Individual Voice Channels for Custom Access Solutions render any facilities provided by the customer obsolete or require modification or alteration of such equipment or system or otherwise affect its use or performance.

5. Individual Voice Channels for Custom Access Solutions is only available where facilities permit.

6. Customers may disconnect Individual Voice Channels for Custom Access Solutions, without penalty, should the total of the monthly recurring rates associated with Individual Voice Channels for Custom Access Solutions increase by 10% or more at any one time.

7. Custom Calling Features and Expresstouch Services are available as specified in Section 18 of this tariff at the applicable tariffed recurring rates.

8. One Directory Listing will be provided per 1.544 Mbps facility. Additional Directory Listings are available as specified in Section 5 of this tariff.

ISSUED: April 8, 2013 EFFECTIVE: April 18, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 28 (T) Third Revised Sheet No. 4 Cancels Second Revised Sheet No. 4

DERIVED CHANNEL SERVICES

I. INDIVIDUAL VOICE CHANNELS FOR CUSTOM ACCESS SOLUTIONS (Continued)

D. Service Components

1. Individual Voice Channels - A monthly rate is applicable for each individual voice channels for Custom Access Solutions. Custom Access Solutions is found in CenturyLink Operating Companies Interstate Service Guide, Section 8.7. (T) Individual Voice Channels can be purchased in increments of 6, 8, 10, 12, 14, 16, 18 or 20 voice channels. Individual Voice Channels with ISDN-PRI functionality can be purchased in increments of 12, 14, 16, 18 or 20 voice channels.

2. All other service components apply as found in CenturyLink Operating Companies (T) Interstate Service Guide, Section 8.7. (T)

E. Application of Rates

1. Individual Voice Channels receive the same local calling area as any other form of basic local exchange service.

2. Optional toll and optional extended local calling plans are available as specified in this tariff at the applicable tariffed recurring rates and usage charges.

3. All federal and state surcharges apply per Individual Voice Channel, including, but not limited to, 9-1-1 surcharges and Telecommunications Relay Service (TRS) surcharges.

4. Federal monthly end user charges apply, as described in CenturyLink Operating (T) Companies Tariff F.C.C. No. 9, Section 4. (e.g., End User Common Line (EUCL), (T) Presubscribed Interexchange Carrier Charge (PICC), Line Port Charge (LPC), Federal Universal Service Fund (USF)).

F. Rates and Charges

1. Individual Voice Channel without ISDN-PRI functionality Monthly Rate (per channel) $24.00

2. Individual Voice Channel with ISDN-PRI functionality (per channel) $25.00

ISSUED: April 8, 2013 EFFECTIVE: April 18, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 28 (T) 1st Revised Sheet No. 5 Cancels Original Sheet No. 5

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE

A. General

1. Digital Trunking Service (DTS) is a digital intraexchange service furnished for use with PBX systems and appropriately equipped Key Systems.

2. DTS will be available on a digital basis at the network interface on a customer’s premises. The customer is required to provide the appropriate multiplexing equipment or interface needed to accommodate the Customer Premises Equipment (CPE).

3. DTS provides twenty-four (24) digital channels within a single, channelized DS1/1.544 Mbps circuit available for voice-grade communications, where facilities are available.

4. To ensure satisfactory operation, the CPE provided by the customer must be compatible with the DTS channel facility provided by the Company.

5. The regulations for DTS specified herein apply in addition to the regulations set forth in other sections of this tariff.

6. The rates specified for DTS in 28.II.G following contemplate the provision of a digital quality facility utilizing existing interoffice carrier equipment and/or exchange cable facilities compatible with this service. If equipment, new facilities or changes to existing facilities are required for the provision of this service, then charges as specified in Section 6, Special Construction and Provision/Extension of Facilities, will apply in addition to the rates for DTS.

7. Suspension of service at the customer's request, as defined in Section 19 of this tariff, is not allowed.

B. Regulations

1. Description of Service

a. DTS provides central office channels in any combination totaling twenty-four (24). This could include outward only, inward only, Direct Inward Dialing (DID), or Two-Way central office channels. DID channels are inbound only.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 6

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE (Continued)

B. Regulations (Continued)

1. Description of Service (Continued)

b. The individual channels carried via DTS facilities may be arranged in separate trunk groups with different pilot numbers, up to a maximum of one inbound, 2- way, or Direct Inward Dialing trunk group per DTS facility. Customers may direct up to five (5) pilot numbers to the same DTS facility. Customers requiring more numbers must subscribe to Direct Inward Dialing service and be charged for numbers accordingly.

c. DID numbers are provided at the rates specified in Section 18 of this tariff. The only charge for DID numbers is the charge applicable to DID number blocks. No other charge in Section 18 apply for DID numbers. Pilot numbers cannot be used as a substitute for DID numbers.

d. DTS is not offered in conjunction with the following services: 1) Basic Exchange Service (e.g., R1, B1, Key, PBX) 2) Feature Groups A, B, C, or D 3) Private Line Access Services and facilities, unless otherwise stated in this section 4) Foreign Exchange Service on individual channels

e. A Two-Way channel may not be used to terminate DID Service associated with DTS.

f. One directory listing will be provided with DTS. Additional Directory Listings are available as specified in Section 5 of this tariff.

g. If a customer requests DTS from an alternative serving central office other than that designated by the Company, then all charges applicable to Interoffice Channel Mileage charges as specified in Section 3 of the Intralata Services Tariff, Digital Link Services, for TransLink Service apply in addition to the rates and charges included in this section. Emergency 911 calls placed over DTS Channels provisioned via a foreign central office serving this arrangement will be identified as the alternative serving central office and not the central office normally serving the customer’s location. The Company shall not be liable for any loss or damages arising from the emergency calls placed from DTS Channels provisioned via an alternative serving central office.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 28 (T) 1st Revised Sheet No. 7 Cancels Original Sheet No. 7

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE (Continued)

B. Regulations (Continued)

1. Description of Service (Continued)

h. Reserved (C)

i. A Channel Service Unit (CSU) or appropriate termination equipment provided by the customer is required at a customer's or authorized user's premises to perform such functions as:

1) proper termination of the service 2) amplification 3) signal shaping 4) remote loop-back

2. Definitions

a. Channel Service Unit (CSU) – The term "Channel Service Unit (CSU)" denotes equipment provided by the customer to terminate a digital facility on the customer's premises.

b. DS1 - This denotes a channel service expressed in terms of its digitally encoded data bit rate in accordance with the North American hierarchy of digital signal levels. It has a 1.544 Mbps transmission data rate, and provides for the two-way simultaneous transmission of isochronous times, Bipolar Return-to-Zero (BPRZ) bit stream format, except where intentional bipolar violations are introduced by Bipolar with 8 Zero Substitution (B8ZS) format. Unframed signal formats are not permitted or compatible with Company equipment. The required format and interface specifications are contained in Technical Reference Publications GR- 54 and GR-342.

c. Nonrecurring Charge - A one-time charge for the initial installation, the installation of functions and features and service rearrangements.

d. Serving Wire Center - The local telephone central office assigned to subscribers in a predetermined geographic area.

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 8

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE (Continued)

B. Regulations (Continued)

3. Connections

a. Customer-Provided Terminal Equipment and Customer-Provided Communications Systems may be connected to DTS when such connection is made in accordance with the provisions specified in (2), (3) and (4) following.

b. Responsibility of the Company

1) The responsibility of the Company shall be limited to the furnishing and maintenance of DTS to a network interface on the customer’s premises where provision is made for the connection of local service.

2) The Company shall not be responsible for installation, operation or maintenance of any terminal equipment or communications systems provided by the customer. DTS is not represented as adapted for the use of such equipment or system. Where such equipment or system is connected to Company facilities, the responsibility of the Company shall be limited to the furnishing of facilities suitable for DTS and to the maintenance and operation in a manner proper for such digital service. The Company shall not be responsible for:

a) The through transmission of signals generated by such equipment or system, or for the quality of, or defects in, such transmission, or

b) The reception of signals by such equipment or systems, or

c) Damage to terminal equipment or communications systems provided by a customer or authorized user due to testing.

3) The Company shall not be responsible to the customer if changes in any of the facilities, operations or procedures of the Company utilized in the provision of DTS render any facilities or equipment provided by a customer obsolete, or require modification or alteration of such equipment or system or otherwise affects its use or performance.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 9

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE (Continued)

B. Regulations (Continued)

3. Connections (Continued)

b. Responsibility of the Company (Continued)

4) The Company is responsible for maintaining and repairing the facilities it furnishes. The customer may not rearrange, disconnect, remove or attempt to repair any equipment installed by the Company without prior written consent of the Company.

5) The DTS Access Line as described following is designed to meet or exceed a performance objective of 99% error-free seconds of transmission per 1000 seconds on a daily basis and 99.9% availability on an annual basis when measured through the digital termination equipment.

6) In order to maintain the quality of DTS, the Company reserves the right to perform preventative maintenance and software updates to the network. The Company has classified maintenance as follows:

a) Scheduled Maintenance

Scheduled maintenance is performed for functions such as hardware and software upgrades and network optimization. The Company will perform these tasks in a maintenance window that is anticipated to minimize disruption of customer service and activity. The Company will provide advance notice of all scheduled maintenance.

b) Demand Maintenance

Demand maintenance may occur as a result of unexpected events and is performed when DTS network elements are in jeopardy. The Company will perform this type of maintenance at its discretion. Due to the nature of demand maintenance, prior notification may not be possible; however, the customer will be informed when the maintenance has been completed.

c. Responsibility of the Customer

1) The customer is responsible for installing and testing his customer premises equipment or facilities to insure that when they are connected to DTS such equipment or facilities are operating properly.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 10

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE (Continued)

B. Regulations (Continued)

3. Connections (Continued)

c. Responsibility of the Customer (Continued)

2) The operating characteristics of the customer premises equipment or facilities shall be such as to not interfere with any of the services offered by the Company. Such use is subject to the further provisions that the equipment provided by a customer does not: endanger the safety of Company employees or the public; damage, require change in or alteration of the equipment or other facilities of the Company; interfere with the proper functioning of such equipment or facilities; impair the operation of the Company’s facilities or otherwise injure the public in its use of the Company’s services. Upon notice that the equipment provided by a customer is causing or is likely to cause such hazard or interference, the customer shall take such steps as shall be necessary to remove or prevent such hazard or interference.

3) The customer’s responsibility shall include cooperative testing with the Company as may be necessary. Where regeneration and/or equalization adjustments or changes may be required to compensate for rearrangements and/or changes in outside plant facilities, the customer will be responsible for all expenses incurred in changes to his customer premises equipment.

d. Connection of Customer-Provided Terminal Equipment and Customer-Provided Communications Systems 1) The following provisions will apply:

a) Customer-Provided Terminal Equipment and/or Customer-Provided Communications Systems may be connected at the premises of the customer to DTS.

b) The undertaking of the Company is to furnish DTS as ordered and specified by the customer except as specified in (4) following.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 28 (T) 1st Revised Sheet No. 11 Cancels Original Sheet No. 11

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE (Continued)

B. Regulations (Continued)

3. Connections (Continued)

d. Connection of Customer-Provided … (Continued)

2) Connection of Channel Service Units

A Channel Service Unit (CSU) or appropriate termination equipment must be provided

by the customer to connect a Company-provided digital facility. This equipment must comply with the technical requirements outlined in Part 68 of the FCC Rules and Regulations.

3) The customer shall be responsible for payment of a Trouble Isolation Charge (T) (a.k.a. Maintenance of Service Charge), as set forth in Section 17 of this (T) tariff, for visits by the Company to the customer's premises where the service difficulty or trouble report results from the use of equipment or facilities provided by the customer.

4) The customer may not rearrange, disconnect, remove or attempt to repair any equipment installed by the Company without the prior written consent of the Company.

5) For maintenance purposes, upon request of the Company, the customer will be responsible for notifying the Company of the type of digital terminating equipment used.

ISSUED: May 12, 2020 EFFECTIVE: June 12, 2020 TX2020-06

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 12

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE (Continued)

C. Term Discount Plan (TDP)

1. A Term Discount Plan (TDP) provides the customer with discounted rates for DTS. The minimum service period is twelve (12) months. DTS may be ordered under a TDP for fixed periods of 12 - 23 months, 24 - 35 months, 36 - 59 months, and 60 - 84 months. Month-to-month rates in this tariff may apply only after the expiration of a TDP. All rate elements within the same DTS facility must be ordered under the same commitment period and under the same service date. The customer must order the TDP in writing to the Company. A TDP may be ordered in one-month increments, (e.g. a 28-month commitment period or a 37-month commitment period).

2. The customer must specify the length of the initial service period at the time the service is ordered. When a customer converts to a TDP, Nonrecurring Charges do not apply toward facilities in-service at that time. If a customer converts from month-to- month rates to a TDP or upgrades from one TDP to another, Nonrecurring Charges and Service Connection and Service Charges do not apply.

3. At the end of the TDP the customer may subscribe to a new TDP at the prevailing rates set forth in 28.II.G following. If the customer does not select a new TDP, the rates will convert to the prevailing month-to-month rates.

4. Rate increases or decreases will automatically be applied to the monthly term plan rates for the remaining term of the TDP. If Company initiated rate increases to any rate element or combination of rate elements causes the charges for the entire DTS under the TDP to increase by 10% or more annually, then the customer may cancel the TDP without incurring termination liability charges provided the customer notifies the Company within 30 days after the effective date of the rate increase.

5. The customer can extend TDP commitment periods at any time during the term of the plan, up to a maximum of 84 months. The number of remaining months in the original term plan will become part of the total term in the new term plan.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 13

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE (Continued)

D. Termination Liability Charges

1. If a customer under a Term Discount Plan (TDP) disconnects all or a portion of DTS prior to the expiration of the TDP, then a Termination Liability Charge will apply to those services that are disconnected. The Termination Liability Charge will be a one- time charge equal to sum of 50% of the payments remaining for the rest of the TDP.

2. Customers may move DTS Access Lines and not be subject to Termination Liability Charges providing the terms of the TDP are maintained. If charges as specified in 28.II.A.6 were applied to the service being terminated or moved, any termination or move charges associated with that construction apply, as well as any construction charges at the new location.

3. Termination Liability Charges will not apply when a service or rate element under a TDP is disconnected prior to the expiration of a selected service period as a result of a change in tariff jurisdiction and/or a customer requested upgrade to a next generation service offering, under the following conditions:

a. The service period of the new TDP for the new service offering is a period equal to or exceeding the remaining service period of the disconnected TDP, and

c. The service orders to install the new service and disconnect the old service are for the same customer at the same location.

4. The Company will determine whether the replacement service qualifies as a next generation service offering.

5. Nonrecurring charges and Service Connection and Service Charges for the new service will apply according to the requirements of the new service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 14

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE (Continued)

E. Rate Categories

There are three rate categories which apply to DTS:

- DTS Access Line - DTS Interface - DTS Channels

1. DTS Access Line

The DTS Access Line rate category provides for the communications path between a customer designated premises and the Serving Wire Center. Included as part of the DTS Access Line is a standard channel interface arrangement which defines the technical characteristics associated with the type of facilities to which the service is to be connected at the point of termination (POT) and the type of signaling capability if any. The signaling capability itself is provided as a part of this rate category. One DTS Access Line charge applies per DTS facility. The charge applicable to the DTS Access Line is set forth in 28.II.G.1 following.

2. DTS Interface

The DTS Interface rate category provides for the central office multiplexing to support twenty-four (24) channels at 56 Kbps with required signaling as necessary for trunking functionality. One DTS Interface charge applies per DS1 facility. The charges applicable to the DTS Interface are set forth in 28.II.G.2 following.

3. DTS Channels

The DTS Channels rate category provides unlimited usage of a network channel that will allow digital transmission up to 56 Kbps. Twenty-four (24) DTS Channels are required per DTS Interface. The charge applicable to DTS Channels is set forth in 28.II.G.3 following.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 28 (T) Second Revised Sheet No. 15 Cancels First Revised Sheet No. 15

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE (Continued)

F. Application of Rates

1. DTS is furnished between the normal Serving Wire Center and the customer’s premises. At a minimum, each DTS facility is comprised of one DTS Access Line, one DTS Interface, and twenty-four (24) DTS Channels.

2. A LightLink Channel Termination may be employed as a substitute for the DTS Access Line, provided that the Channel Termination meets the required technical standards necessary to support DTS. In such cases, there will be no charge for the DTS Access Line.

3. The DTS Interface is provided at the Serving Wire Center. One DTS Interface charge applies per DS1 facility.

4. When DTS is extended from an alternative central office, all charges applicable to TransLink Service Interoffice Channel Mileage apply in addition to the rates and charges included in this section.

5. Twenty-four (24) DTS Channels apply per DTS Interface.

6. DTS Channels receive the same local calling area as any other form of basic local exchange service.

7. Optional toll and optional extended local calling plans are available and will be calculated on a per DTS Channel basis at the applicable recurring rates and usage charges as specified in this tariff. All 24 DTS Channels on a DTS Interface must be arranged under the same optional toll plan or extended local calling plan.

8. The Federal Subscriber Line Charge and the Presubscribed Interexchange Carrier Charge (PICC) apply per DTS Channel, as well as other federal monthly end user charges as described in CenturyLink Operating Companies Tariff F.C.C. No. 9, (T) Section 4 (e.g., Federal Universal Service Fund (USF). (T)

9. All federal, state, and local surcharges apply per DTS Channel, including, but not limited to, 9-1-1 surcharges and Telecommunications Relay Service (TRS) surcharges.

10. Rates and charges specified in other sections of this tariff for services such as Custom Calling Features, ExpressTouch Service, Touch-Tone Service, etc., as specified in Section 18 of this tariff, apply in addition to the monthly rates for DTS on a per channel basis.

11. Rotary Hunt functionality at no additional charge is available with DTS. The functionality may be within the channels of a single DTS arrangement, between channels of multiple DTS arrangements, or between PBX trunks, Key System trunks, and channels within a DTS arrangement.

ISSUED: April 8, 2013 EFFECTIVE: April 18, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 16

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE (Continued)

G. Rates and Charges Nonrecurring Nonrecurring Nonrecurring Monthly Charge Charge Charge Rate Initial Additional Rearrangement 1. DTS Access Line Month to Month(1) $300.00 N/AN/A $150.00 12 - 23 Months 275.00 $200.00 $110.00 150.00 24 - 35 Months 250.00 110.00 110.00 150.00 36 - 59 Months 220.00 0.00 0.00150.00 60 - 84 Months 200.00 0.00 0.00150.00

2. DTS Interface Month to Month(1) $290.00 N/AN/A $115.00 12 - 23 Months 204.00 $130.00 $130.00 115.00 24 - 35 Months 193.00 20.00 20.00 115.00 36 - 59 Months 177.00 0.00 0.00115.00 60 - 84 Months 161.00 0.00 0.00115.00

3. DTS Channels, each channel (24 required per DTS Interface) Month to Month(1) $15.00 N/AN/A $5.00 12 - 23 Months 14.00 $5.00 $5.00 5.00 24 - 35 Months 13.00 5.00 5.005.00 36 - 59 Months 12.00 0.00 0.005.00 60 - 84 Months 11.00 0.00 0.005.00

(1) Month-to-month rates are available only after the expiration of one of the Term Discount Plans.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 17

DERIVED CHANNEL SERVICES

II. DIGITAL TRUNKING SERVICE (Continued)

G. Rates and Charges (Continued)

4. Nonrecurring Charge

The Initial Nonrecurring Charge is applicable for the initial installation of a DTS Access Line, DTS Interface and DTS Channels to a given Serving Wire Center. The Additional Nonrecurring Charge is applicable for each additional DTS Access Line, DTS Interface and associated DTS Channels installed at the same location, the same time, under the same order, and with the same due date. The Rearrangement Nonrecurring Charge is applicable for any rearrangement of an existing DTS Access Line, DTS Interface, and DTS Channels.

5. Move Charges

A Move Charge applies for DTS Access Lines moved to a new location, even when moved on the same premises. The Move Charge is equal to the DTS Access Line Initial Nonrecurring Charge and applies in addition to the Service Order Charge located in Section 17 of this tariff.

6. Service Charges

A Service Order Charge as set forth in Section 17 of this tariff is applicable per customer request. Nonrecurring Charges specified in this tariff section are in lieu of all other Service Connection and Service Charges.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 28 (T) 1st Revised Sheet No. 18 Cancels Original Sheet No. 18

DERIVED CHANNEL SERVICES

III. ESP Link

A. General

1. ESP Link is a digital intraexchange service is intended for Enhanced Service Providers (ESPs) for use with Customer Premises Equipment (CPE).

2. ESP Link will be available on a digital basis at the network interface on a customer’s premises. The customer is required to provide the appropriate multiplexing equipment or interface needed to accommodate the CPE provided by the customer.

3. ESP Link provides twenty-four (24) digital channels within a single, channelized DS1/1.544 Mbps circuit available for voice-grade communications, where facilities are available.

4. To ensure satisfactory operation, the CPE provided by the customer must be compatible with the ESP Link channel facility provided by the Company.

5. The regulations for ESP Link specified herein apply in addition to the regulations set forth in other sections of this tariff.

6. The rates specified for ESP Link in 28.III.G following contemplate the provision of a digital quality facility utilizing existing interoffice carrier equipment and/or exchange cable facilities compatible with this service. If equipment, new facilities or changes to existing facilities are required for the provision of this service, then charges as specified in Section 6, Special Construction and Provision/Extension of Facilities, apply in addition to the rates for ESP Link.

B. Regulations

1. Description of Service

a. ESP Link is furnished for the two-way transmission of digital signals at 1.544 Mbps between the serving wire center and the customer’s premises located within the same exchange. Calls from the public switched network are terminated to the ESP Link facility, but the ESP Link facility is prohibited from originating calls. The Company will provide out pulses as seizures only and will not provide digits. ESP Link may not be terminated to a Serving Wire Center for the purposes of switched connection to the local exchange and/or long distance (local toll) network.

ISSUED: May 6, 2020 EFFECTIVE: June 6, 2020 TX2020-07

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 19

DERIVED CHANNEL SERVICES

III. ESP Link (Continued)

B. Regulations (Continued)

1. Description of Service (Continued)

b. One pilot number will be provided with each ESP Link Interface, if required. Each additional ESP Link Interface may have its own pilot number, or may receive overflow traffic from another ESP Link Interface.

c. ESP Link is not offered in conjunction with the following services:

1) Basic Exchange Service (e.g., R1, B1, Key, PBX)

2) Feature Groups A, B, C, or D

3) Private Line Access Services and facilities, unless otherwise stated in this section

4) Foreign Exchange Service on individual channels

d. DID Service is not allowed for use with ESP Link.

e. No directory listings will be provided with ESP Link.

f. If a customer requests ESP Link from an alternative serving central office other than that designated by the Company, then all charges applicable to Interoffice Channel Mileage charges as specified in Section 3 of the Intralata Services Tariff, Digital Link Services, for TransLink Service will apply in addition to the rates and charges included in this section. ESP Link is an inbound service only, and cannot be used to place Emergency 911 calls.

g. A Channel Service Unit (CSU) or appropriate termination equipment provided by the customer is required at a customer's or authorized user's premises to perform such functions as:

1) proper termination of the service

2) amplification

3) signal shaping

4) remote loop-back

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 20

DERIVED CHANNEL SERVICES

III. ESP Link (Continued)

B. Regulations (Continued)

2. Definitions

a. Channel Service Unit (CSU) – The term "Channel Service Unit (CSU)" denotes equipment provided by the customer to terminate a digital facility on the customer's premises.

c. Nonrecurring Charge - A one-time charge for the initial installation, the installation of functions and features and service rearrangements.

d. Serving Wire Center - The local telephone central office assigned to subscribers in a predetermined geographic area.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 21

DERIVED CHANNEL SERVICES

III. ESP Link (Continued)

B. Regulations (Continued)

3. Connections

a. Customer-Provided Terminal Equipment and Customer-Provided Communications Systems may be connected to ESP Link when such connection is made in accordance with the provisions specified in (2), (3) and (4) following.

b. Responsibility of the Company

1) The responsibility of the Company shall be limited to the furnishing and maintenance of ESP Link to a network interface on the customer’s premises where provision is made for the connection of local service.

2) The Company shall not be responsible for installation, operation or maintenance of any terminal equipment or communications systems provided by the customer. ESP Link is not represented as adapted for the use of such equipment or system. Where such equipment or system is connected to Company facilities, the responsibility of the Company shall be limited to the furnishing of facilities suitable for ESP Link and to the maintenance and operation in a manner proper for such digital service. The Company shall not be responsible for:

a) The through transmission of signals generated by such equipment or system, or for the quality of, or defects in, such transmission, or

b) The reception of signals by such equipment or systems, or

c) Damage to terminal equipment or communications systems provided by a customer or authorized user due to testing.

3) The Company shall not be responsible to the customer if changes in any of the facilities, operations or procedures of the Company utilized in the provision of ESP Link render any facilities or equipment provided by a customer obsolete, or require modification or alteration of such equipment or system or otherwise affects its use or performance.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 22

DERIVED CHANNEL SERVICES

III. ESP Link (Continued)

B. Regulations (Continued)

3. Connections (Continued)

b. Responsibility of the Company (Continued)

5) The ESP Link Access Line as described following is designed to meet or exceed a performance objective of 99% error-free seconds of transmission per 1000 seconds on a daily basis and 99.9% availability on an annual basis when measured through the digital termination equipment.

6) In order to maintain the quality of ESP Link, the Company reserves the right to perform preventative maintenance and software updates to the network. The Company has classified maintenance as follows:

a) Scheduled Maintenance

b) Demand Maintenance

Demand maintenance may occur as a result of unexpected events and is performed when ESP Link network elements are in jeopardy. The Company will perform this type of maintenance at its discretion. Due to the nature of demand maintenance, prior notification may not be possible; however, the customer will be informed when the maintenance has been completed.

c. Responsibility of the Customer

1) The customer is responsible for installing and testing his customer premises equipment or facilities to insure that when they are connected to ESP Link such equipment or facilities are operating properly.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 23

DERIVED CHANNEL SERVICES

III. ESP Link (Continued)

B. Regulations (Continued)

3. Connections (Continued)

c. Responsibility of the Customer (Continued)

d. Connection of Customer-Provided Terminal Equipment and Customer-Provided Communications Systems

1) The following provisions will apply:

a) Customer-Provided Terminal Equipment and/or Customer-Provided Communications Systems may be connected at the premises of the customer to ESP Link.

b) The undertaking of the Company is to furnish ESP Link as ordered and specified by the customer except as specified in 4) following.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 28 (T) 1st Revised Sheet No. 24 Cancels Original Sheet No. 24

DERIVED CHANNEL SERVICES

III. ESP Link (Continued)

B. Regulations (Continued)

3. Connections (Continued)

d. Connection of Customer-Provided … (Continued)

2) Connection of Channel Service Units A Channel Service Unit (CSU) or appropriate termination equipment must be provided by the customer to connect a Company-provided digital facility. This

equipment must comply with the technical requirements outlined in Part 68

of the FCC Rules and Regulations.

4) The customer may not rearrange, disconnect, remove or attempt to repair any equipment installed by the Company without the prior written consent of the Company.

5) For maintenance purposes, upon request of the Company, the customer will be responsible for notifying the Company of the type of digital terminating equipment used.

C. Term Discount Plan (TDP)

1. A Term Discount Plan (TDP) provides the customer with discounted rates for ESP Link. The minimum service period is twelve (12) months. ESP Link may be ordered under a TDP for fixed periods of 12 - 23 months, 24 - 35 months, 36 - 59 months, and 60 - 84 months. Month-to-month rates in this tariff may apply only after the expiration of a TDP. All rate elements within the same ESP Link facility must be ordered under the same commitment period and under the same service date. The customer must order the TDP in writing to the Company. A TDP may be ordered in one-month increments, (e.g. a 28-month commitment period or a 37-month commitment period).

3. At the end of the TDP the customer may subscribe to a new TDP at the prevailing rates set forth in 28.III.G following. If the customer does not select a new TDP, the rates will convert to the prevailing month-to-month rates.

ISSUED: May 12, 2020 EFFECTIVE: June 12, 2020 TX2020-06

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 25

DERIVED CHANNEL SERVICES

III. ESP Link (Continued)

C. Term Discount Plan (TDP) (Continued)

4. Rate increases or decreases will automatically be applied to the monthly term plan rates for the remaining term of the TDP. If Company initiated rate increases to any rate element or combination of rate elements causes the charges for the entire ESP Link under the TDP to increase by 10% or more annually, then the customer may cancel the TDP without incurring termination liability charges provided the customer notifies the Company within 30 days after the effective date of the rate increase.

D. Termination Liability Charges

1. If a customer under a Term Discount Plan (TDP) disconnects all or a portion of ESP Link prior to the expiration of the TDP, then a Termination Liability Charge will apply to those services that are disconnected. The Termination Liability Charge will be a one- time charge equal to sum of 50% of the payments remaining for the rest of the TDP.

2. Customers may move ESP Link Access Lines and not be subject to Termination Liability Charges providing the terms of the TDP are maintained. If charges as specified in 28.III.A.6 were applied to the service being terminated or moved, any termination or move charges associated with that construction apply, as well as any construction charges at the new location.

a. The service period of the new TDP for the new service offering is a period equal to or exceeding the remaining service period of the disconnected TDP, and

b. The service orders to install the new service and disconnect the old service are related together, and there is no lapse in service between the installation of the new service and the disconnection of the old service, and c. The service orders to install the new service and disconnect the old service are for the same customer at the same location.

4. The Company will determine whether the replacement service qualifies as a next generation service offering.

5. Nonrecurring charges and Service Connection and Service Charges for the new service will apply according to the requirements of the new service.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 26

DERIVED CHANNEL SERVICES

III. ESP Link (Continued)

E. Rate Categories

There are three rate categories which apply to ESP Link:

- ESP Link Access Line - ESP Link Interface - ESP Link Channels

1. ESP Link Access Line

The ESP Link Access Line rate category provides for the communications path between a customer designated premises and the Serving Wire Center. Included as part of the ESP Link Access Line is a standard channel interface arrangement which defines the technical characteristics associated with the type of facilities to which the service is to be connected at the point of termination (POT) and the type of signaling capability if any. The signaling capability itself is provided as a part of this rate category. One ESP Link Access Line charge applies per ESP Link facility. The charge applicable to the ESP Link Access Line is set forth in 28.III.G.1 following.

2. ESP Link Interface

The ESP Link Interface rate category provides for the central office multiplexing to support twenty-four (24) channels at 56 Kbps with required signaling as necessary for trunking functionality. The charge applicable to the ESP Link Interface are set forth in 28.III.G.2 following

3. ESP Link Channels

The ESP Link Channels rate category provides unlimited usage of a network channel that will allow digital transmission up to 56 Kbps. Twenty-four (24) ESP Link Channels are required per ESP Link Interface. The charge applicable to ESP Link Channels is set forth in 28.III.G.3 following.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 28 (T) First Revised Sheet No. 27 Cancels Original Sheet No. 27

DERIVED CHANNEL SERVICES

III. ESP Link (Continued)

F. Application of Rates

1. ESP Link is furnished between the normal Serving Wire Center and the customer’s premises. At a minimum, each ESP Link facility is comprised of one ESP Link Access Line, one ESP Link Interface, and twenty-four (24) ESP Link Channels.

2. A LightLink Channel Termination may be employed as a substitute for the ESP Link Access Line, provided that the Channel Termination meets the required technical standards necessary to support ESP Link. In such cases, there will be no charge for the ESP Link Access Line.

3. The ESP Link Interface is provided at the Serving Wire Center. One ESP Link Interface

charge applies per ESP Link facility.

4. When ESP Link is extended from an alternative central office, all charges applicable to Foreign Exchange Service and TransLink Service interoffice mileage apply in addition to the rates and charges included in this section.

5. Twenty-four (24) ESP Link Channels apply per ESP Link Interface.

6. ESP Link Channels receive the same local calling area as any other form of basic local exchange service.

7. The Federal Subscriber Line Charge and the Presubscribed Interexchange Carrier Charge (PICC) apply at a ratio of five (5) per ESP Link Interface, as well as other federal monthly end user charges as described in CenturyLink Operating Companies Tariff F.C.C. No. 9, (T) Section 4 (e.g., Federal Universal Service Fund (USF). (T)

8. All federal, state, and local surcharges apply per ESP Link Channel, including, but not limited to, 9-1-1 surcharges and Telecommunications Relay Service (TRS) surcharges.

9. Services such as Custom Calling Features, ExpressTouch Service, Touch-Tone Service, etc., as specified in Section 18 of this tariff, are not available in conjunction with ESP Link.

10. Rotary Hunt functionality is inherent to ESP Link Service.

ISSUED: April 8, 2013 EFFECTIVE: April 18, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 28

DERIVED CHANNEL SERVICES

III. ESP Link (Continued)

G. Rates and Charges

Nonrecurring Nonrecurring Nonrecurring Monthly Charge Charge Charge Rate Initial Additional Rearrangement

1. ESP Link Access Line

Month to Month(1) $280.00 N/A N/A $125.00 12 - 23 Months 255.00 $175.00 $100.00 125.00 24 - 35 Months 230.00 100.00 100.00 125.00 36 - 59 Months 200.00 0.00 0.00 125.00 60 - 84 Months 180.00 0.00 0.00 125.00

2. ESP Link Interface

Month to Month(1) $254.00 N/A N/A $100.00 12 - 23 Months 253.00 $100.00 $100.00 100.00 24 - 35 Months 247.00 20.00 20.00 100.00 36 - 59 Months 231.00 0.00 0.00 100.00 60 - 84 Months 180.00 0.00 0.00 100.00

3. ESP Link Channels, each channel (24 required per ESP Link Interface)

Month to Month(1) $14.00 N/A N/A $5.00 12 - 23 Months 13.00 $5.00 $5.00 5.00 24 - 35 Months 12.00 5.00 5.00 5.00 36 - 59 Months 11.00 0.00 0.00 5.00 60 - 84 Months 10.00 0.00 0.00 5.00

(1) Month-to-month rates are available only after the expiration of one of the Term Discount Plans.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 28

Original Sheet No. 29

DERIVED CHANNEL SERVICES

III. ESP Link (Continued)

G. Rates and Charges (Continued)

4. Nonrecurring Charge

The Initial Nonrecurring Charge is applicable for the initial installation of a ESP Link Access Line, ESP Link Interface and ESP Link Channels to a given Serving Wire Center. The Additional Nonrecurring Charge is applicable for each additional ESP Link Access Line, ESP Link Interface and associated ESP Link Channels installed at the same location, the same time, under the same order, and with the same due date. The Rearrangement Nonrecurring Charge is applicable for any rearrangement of an existing ESP Link Access Line, ESP Link Interface, and ESP Link Channels.

5. Move Charges

A Move Charge applies for ESP Link Access Lines moved to a new location, even when moved on the same premises. The Move Charge is equal to the ESP Link Access Line Initial Nonrecurring Charge and applies in addition to the Service Order Charge located in Section 17 of this tariff.

6. Service Charges

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 29 (T) First Revised Sheet No. 1 Cancels Original Sheet No. 1

RESIDENCE CUSTOMER REFERRAL PROGRAM ▲ (N)

I. TERMS AND CONDITIONS

A. Existing residence customers may be eligible for a one-time $50 bill credit when they submit a referral via the Company’s Internet website that results in the establishment of a new customer account for service that includes residential local exchange service. This one-time $50 bill credit will be applied to the referring customer’s account within sixty days after the Company has confirmed that the referred customer has established a new customer account for service that included a residential access line. This bill credit is limited to one bill credit per customer referral and unused credits will roll over to future months. Each customer is limited to a maximum of $600 in referral credits per calendar year.

B. New residence customers may be eligible for a $10 bill credit for six consecutive months. To be eligible, the Company has to confirm that the referred customer has established a new customer account for service that includes residential local exchange service. The $10 bill credits will be applied to the referred customer’s account during each of the referred customer’s first six bill cycles with the Company. If the referred customer discontinues the local exchange service prior to the end of the six month period, no additional credits will be applied although the referred customer will not be required to refund the Company for previously acquired bill credits. (N)

▲ Central Telephone Company of Texas dba CenturyLink concurs in the rates and regulations (N) governing this service. (N)

ISSUED: December 18, 2009 EFFECTIVE: January 1, 2010

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 30

Original Sheet No. 1

RESERVED FOR FUTURE USE

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 31

Original Sheet No. 1

RESERVED FOR FUTURE USE

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 32

Original Sheet No. 1

PUBLIC ANNOUNCEMENT SERVICES

I. TIME AND TEMPERATURE ANNOUNCEMENT SYSTEMS

A. General

1. The Telephone Company will furnish facilities, when avail-able, for a customer's use in providing to calling parties, announcements of the kinds specified herein, under the following conditions.

2. The Telephone Company will furnish all facilities required for such announcements, including announcement equipment, associated apparatus, and announcement lines.

3. The customer is required to contract for as many announcement lines as, in the judgment of the Telephone Company, are required to handle the traffic satisfactorily.

4. Telephone users calling the announcement number are automatically disconnected after a lapse of time for receiving one full announcement.

5. The furnishing of automatic announcement service contemplates that the distribution of the calls placed to the telephone number assigned to such service will be such that the volumes received at any time will not cause impairment, disruption, or deterioration of the quality of other exchange telephone service or message toll telephone service. In the event that the use of an automatic announcement service causes such impairment, disruption, or deterioration, the Telephone Company shall have the right to discontinue such service without prior notification to the customer.

6. The customer may not transmit over facilities furnished hereunder any material the transmission of which is prohibited by law or which is deemed objectionable by the Telephone Company.

7. This service is subject to the General Rules and Regulations in Section 7 of this tariff.

B. Rates

Rate Per Service Month Charge

1. Audichron Automatic Time Announcement

Time and Temperature Announcer $285.00 NC

Trunk Termination PBX-T+3.00 $35.00

Changing records or messages (for any reason) NC 100.00

C. The contract period specified by the Telephone Company shall apply.

D. Audichron equipment may be sponsored by more than one customer depending on the limitations of the equipment provided. In this case, each customer will execute a separate contract for the appropriate fraction of the total rate and service charge.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 33

Original Sheet No. 1

RESERVED FOR FUTURE USE

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 35

Original Sheet No. 1

COMPETITIVE RESPONSE PROGRAMS

A. $5/$10 Credit Offer

Existing business customers may be eligible for consecutive bill credits when they contact the Company to inform them that they have received a better priced offer for the same or comparable service(s) from a competitor, or when they contact the Company to disconnect service(s) and agree to retain their service(s) with the Company.

The credits will begin appearing on customer bills the first month bill following the customer’s acceptance of this program. The benefits awarded under this program may not be combined with the benefits of other currently available programs or promotions.

ISSUED: June 24, 2011 EFFECTIVE: July 6, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 100

Original Sheet No. 1

OBSOLETE SERVICE OFFERINGS

I. GENERAL

The services contained herein are obsolete and are without exception for existing services only. No service contained herein is to be offered as new service, moved, changed nor added to unless otherwise stated under individual services included in this section.

The Telephone Company will maintain all existing services outlined herein only as long as economically feasible. The customer will, at that time, be required to change to a like service, if available, at the rates specified in the applicable section of this General Exchange Tariff.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 115

Original Sheet No. 1

OBSOLETE SERVICE OFFERINGS

CENTREX SERVICE(1)

I. GENERAL

A. Centrex service is an optional communications system arrangement offering central office based features similar to those found in stored program multiline business customer premise equipment. This service is limited to customers with a minimum of three to a maximum of 200 access lines. Pricing for customers requiring 201 or more Centrex lines will be on an individual case basis. Centrex service is offered only in those exchanges with central offices equipped to provide this service. In addition, some features may not be available in all central offices.

B. Centrex Basic service consists of a three element basic access line, Touch Tone capability and the features listed below:

Automatic Line Executive Busy Override Automatic Route Selection Executive Busy Override-Exempt Call Back Queuing Expensive Route Warning Tone Call Forwarding Group Intercom Call Hold Hunt Groups Call Park Last Number Redial Call Pickup Loudspeaker and Radio Paging Access Call Waiting Make Set Busy Call Waiting Exempt Meet-Me Conference Call Waiting Originating Message Waiting Code Call Access Network Class of Service Dial Call Waiting Off Hook Queuing Dictation Access and Control Permanent Hold Direct Inward Dialing Ring Again Direct Outward Dialing Speed Calling Directed Call Pickup Barge-In Station Controlled Conference Directed Call Pickup Non-Barge-In Three-Way Conference/Call Transfer/ Distinctive Ringing Consultation Hold Uniform Call Distribution

Centrex Basic service supports all of these features; however, all features cannot be assigned simultaneously to all lines. For limitations, see feature descriptions.

C. Centrex Meridian service consists of the features listed below. Subscription to Centrex Basic service is required for Centrex Meridian service. Specialized business sets with keys to activate each feature are needed with the Meridian Service package.

(1) Effective July 1, 2003, Centrex Service is no longer available to new customers. Existing customers may continue to purchase at their existing rates until their term or contract expires. Centrex Service II is available to new customers as specified in Section 18.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 115 First Revised Sheet No. 2 Cancels Original Sheet No. 2

OBSOLETE SERVICE OFFERINGS

CENTREX SERVICE(1) I. GENERAL (Continued)

C. Centrex Meridian service consists … (Continued)

Meridian Auto Answer Back Meridian Last Number Redial Meridian Automatic Dial Meridian Make Set Busy Meridian Automatic Line Meridian Malicious Call Hold Meridian Call Back Queuing Meridian Message Waiting Meridian Call Forwarding Meridian Ring Again Meridian Call Park Meridian Speed Calling Meridian Call Pickup Meridian Station Controlled Meridian Call Waiting Conference Meridian Directed Call Pickup Meridian Three-Way Conference/Call Non-Barge-In Transfer Meridian Group Intercom Multiple Appearance Directory Meridian Intercom Number

II. RULES AND REGULATIONS

A. The minimum service period for Centrex service is one month, except when the provision of the service requires the construction of additional facilities and/or equipment. The customer may be required to pay all or a portion of the construction and installation charges and/or contract for service beyond the minimum service period in an arrangement agreeable to both the Telephone Company and the customer.

B. A Rate Stability Plan is a payment option that allows the customer to pay a fixed monthly rate, which is not subject to Telephone Company initiated rate changes over a fixed period. This plan covers the Centrex line facilities, features and switching. The Rate Stability plan does not cover Service Connection Charges or any other rates listed in other sections of (C) the tariff. Customers subscribing to this plan will sign a termination agreement for their service. Centrex lines with Centrex features may be added to the existing contract, but the customer is subject to the terms of the agreement if a request is made to remove lines from service.

Centrex Basic lines may be added to or removed from the existing Rate Stability contract, but the customer is subject to the terms of the agreement if a request is made to remove lines from service.

C. Three-Way Calling, Call Forwarding and the Centrex Meridian service are furnished subject to transmission limitation. The Telephone Company does not guarantee satisfactory transmission on such arrangements. If the customer requests additional equipment to improve transmission, and facilities permit, additional charges based upon the costs incurred may apply.

ISSUED: August 18, 2008 EFFECTIVE: August 28, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 115 (T) 2nd Revised Sheet No. 3 Cancels 1st Revised Sheet No. 3

OBSOLETE SERVICE OFFERINGS

CENTREX SERVICE(1)

II. RULES AND REGULATIONS (Continued)

D. Centrex service is available only for stations within the base rate area of an exchange; exceptions may be made at the Telephone Company's discretion if facilities are available. Any accepted requests for additional facilities will be provided in accordance with the Construction Charges and Special Assemblies and Services sections of this tariff.

E. Directory listings will be furnished in accordance with the regulations set forth in Section 5 of this tariff.

F. Telephone Company central offices with Centrex switching arrangements that provide access to Tie Lines, Foreign Exchange Lines, etc., are considered to be the customer (D) premises.

G. Centrex service is not provided in association with Public Telephone Service or Local Measured Service.

H. Directory Assistance charges and allowances will apply to Public Access Lines rather than the individual Centrex Lines.

I. If the addition or removal of Centrex lines for an existing Centrex customer places the customer into a different rate tier, all Centrex lines will be priced based on the total number of Centrex lines serving that customer.

J. Specialized business sets can support private business lines which shall be offered at the current B1 rate specified in the Local Exchange Tariff.

K. Centrex service cannot be used to expand the local calling scope beyond that available to a customer's premise.

III. FEATURE DESCRIPTIONS

Automatic Line - A telephone line that provides a direct connection between a calling station and a predetermined terminating telephone number when the calling station goes off hook.

Automatic Route Selection (ARS) - A feature that sends outgoing toll calls to the least cost route available. The selection of routes is determined by the customer. If the primary route is busy, the ARS feature will send calls to alternate routes as prioritized by the customer.

Base Rate Area - See Section 4 of this tariff.

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 115

Original Sheet No. 4

OBSOLETE SERVICE OFFERINGS

CENTREX SERVICE(1)

III. FEATURE DESCRIPTIONS (Continued)

Call Back Queuing - Allows a Centrex station user encountering an all trunks busy condition to activate the Call Back Queuing feature and hang up. When a circuit becomes idle, the system will recall the user, and when the station user answers, the system automatically places the call. Call Back Queuing only affects outgoing local trunks on an originating basis.

Call Forwarding - Allows a Centrex station user to have incoming calls to their station automatically sent to a predetermined telephone number. Four (4) types of Call Forwarding are available: (1) Call Forward Universal, which sends incoming calls to another telephone number; (2) Call Forward Intragroup, which sends incoming calls to only those stations within the same customer group; (3) Call Forward Busy, which directs incoming calls to a busy station to be sent to a designated station or attendant; and (4) Call Forward Don't Answer, which sends incoming calls to another designated station or attendant if the called station does not answer within a specified time. Call Forward Universal and Call Forward Intragroup are user programmable; Call Forward Busy and Call Forward Don't Answer are not.

Call Hold - Allows the user to maintain one call for any length of time provided neither party hangs up. The user may also place other calls while a call is on hold.

Call Park - This feature allows Centrex station users to keep or "park" one call on their own directory number. The parked call can be retrieved from any station within the same customer group. Once a call is parked on a directory number, the user is free to make or receive calls on that directory number.

Call Pickup - Allows a Centrex station user to answer incoming calls to another station within a specified pickup group by dialing a feature activation code.

Call Waiting - Allows a Centrex station user, already talking on the phone, to be informed by a tone that another call is attempting to reach the station. This feature should not be assigned to lines equipped with the UCD feature.

Call Waiting Exempt - This feature prevents call waiting tones from being imposed on a station. This feature is programmed via Service Order.

Call Waiting Originating (CWO) - Allows an originating line to impose a call waiting tone automatically on a busy called line.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 115

Original Sheet No. 5

OBSOLETE SERVICE OFFERINGS

CENTREX SERVICE(1)

III. FEATURE DESCRIPTIONS (Continued)

Code Call Access - Allows stations to gain access to customer-provided code call equipment by dialing an access code and a called party code.

Dial Call Waiting (DCW) - Permits a Centrex station user to impose a call waiting tone on a busy station that normally does not have call waiting. DCW is similar to CWO except that DCW is applied at the discretion of the station user and CWO is applied automatically.

Dictation Access and Control - Provides access to customer-provided dictation recording equipment by dialing an access code. It also provides dictation equipment control functions, such as playback and correct, by transmitting Dual Tone Multi-Frequency (DTMF) signals over the voice path to the dictation recording equipment.

Direct Inward Dialing - Allows incoming calls from the exchange network to reach a specific station. The calling party dials the seven-digit directory number to reach the station.

Direct Outward Dialing - A Centrex station user can place external calls to the exchange network by dialing the access code (usually the digit 9), receiving an optional second dial tone, then dialing the external number.

Directed Call Pickup Barge-In - This feature is like Directed Call Pickup Non-Barge-In except that it will create a three-way call if the ringing station has been answered before completion of the pickup dialing sequence.

Directed Call Pickup Non-Barge-In - Permits a Centrex station user to answer a call which is ringing on a selected station within the same customer group and served by the same central office.

Distinctive Ringing - Provides the Centrex station users the ability to determine whether the call is from a station within the customer group or from the exchange network by the cadence of the ringing of the phone.

Executive Busy Override - Allows a station user to gain access to a busy station by flashing the switchhook during busy tone and dialing a feature activation code.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 115

Original Sheet No. 6

OBSOLETE SERVICE OFFERINGS

CENTREX SERVICE(1)

III. FEATURE DESCRIPTIONS (Continued)

Executive Busy Override-Exempt - Blocks the Executive Busy Override feature if another user attempts to barge-in on an existing call.

Expensive Route Warning Tone (ERWT) - An optional feature used in conjunction with ARS that can provide a Centrex calling party a warning tone to indicate the selection of an expensive toll route.

Group Intercom - Allows a Centrex station abbreviated dialing to other station members within the same intercom group.

Hunt Groups - Used to avoid having callers receive busy signals. Incoming calls which encounter busy stations will be answered by the next available line without the calling customer hearing a busy signal. Lines equipped with this feature should not be equipped with UCD.

Last Number Redial - Allows a station user to redial their last called number by depressing one or two keys rather than the entire number.

Loudspeaker and Radio Paging Access - Permits Centrex station users to dial an access code to connect loudspeaker paging equipment. Access is subject to the originating station's Network Class of Service (NCOS).

Make Set Busy (MSB) - A Centrex 500/2500 station user can have the option of making the line busy to incoming calls while still completing outgoing calls. Calls attempting to terminate on a line with MSB activated can hear a busy signal or be routed to a recording.

Meet-Me Conference - A Centrex station user may set up a conference call for a special time of day with this feature. The assigned Meet-Me Conference directory number for the conference is dialed at the designated time. Each conferee is automatically added to the conference when the Meet-Me conference number is dialed. As conferees are added, all conferees, excluding the new arrival, will receive a tone to indicate that a party has been added.

Meridian Auto Answer Back - When implemented on a specialized business set, allows any incoming call to the Primary Directory Number of the set to be automatically answered after four seconds.

Meridian Automatic Dial - Allows a Meridian station user to call a frequently dialed number by depressing the assigned key. The user is permitted to program and change the number.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 115

Original Sheet No. 7

OBSOLETE SERVICE OFFERINGS

CENTREX SERVICE(1)

III. FEATURE DESCRIPTIONS (Continued)

Meridian Automatic Line - A directory number feature that may be assigned to individual directory number appearances on a specialized business set, including the primary directory number. When an off hook condition is reported from the directory number appearance to which an Automatic Line has been assigned, a connection is automatically established to a predetermined location.

Meridian Call Back Queuing - With this feature, a Meridian user encountering an all trunks busy condition has the option of being notified when a trunk becomes idle. The user is automatically connected to the called number. Meridian Call Back Queuing only affects outgoing local trunks on an originating basis.

Meridian Call Forwarding - Functionally identical to Call Forwarding.

Meridian Call Park - Functions identically as Call Park except this is a set feature that can be activated by either a key or an access code.

Meridian Call Pickup - Functionally the same as Call Pickup.

Meridian Call Waiting - Permits an incoming call encountering a busy Meridian line to receive audible ringing while the called station user receives call waiting notification. The called station user can choose to acknowledge the new caller and place the existing party on hold, to alternate between the callers, or to abandon one of the calls.

Meridian Directed Call Pickup Non-Barge-In - Functionally the same as Directed Call Pickup Non- Barge-In.

Meridian Group Intercom - Allows a Meridian user to call a member of a pre-designated group using abbreviated dialing.

Meridian Intercom - Allows a Meridian user to directly terminate on a pre-designated set by pressing the intercom key on the Meridian Business set.

Meridian Last Number Redial - Functionally the same as Last Number Redial.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 115

Original Sheet No. 8

OBSOLETE SERVICE OFFERINGS

CENTREX SERVICE(1)

III. FEATURE DESCRIPTIONS (Continued)

Meridian Make Set Busy - Allows directory number appearances - excluding private business lines and MADN group members and call terminations, such as call waiting calls, camp-on and busy override - on a specialized business set, to be made busy to incoming calls.

Meridian Malicious Call Hold - Allows a Meridian subscriber to hold a connection on a malicious call, enabling the call to be traced.

Meridian Message Waiting - Permits a Meridian user to dial a code to access the person who activated the Message Waiting feature. With the Meridian capability, an LCD lamp will be activated when a message is waiting.

Meridian Ring Again - Functionally like Ring Again but is classified as a set feature requiring assignment to a specific key and associated LCD indicator.

Meridian Speed Calling - Allows a Meridian user to access two different speed call lists by pressing Speed Call keys or dialing speed call access codes.

Meridian Station Controlled Conference - Permits a specialized business set to establish a conference call of up to 30 parties. Any of the other parties may be external to the Centrex group.

Meridian Three-Way Conference/Call Transfer - Allows a Meridian station user to include a third party in the call and then optionally transfer the call to the third party.

Message Waiting - Permits a station user to dial a code to access the person who activated the Message Waiting feature. It also permits the station to activate this feature for another station. Stuttered dial tone will also be used to inform users that a message is waiting for them.

Multiple Appearance Directory Number - Permits a directory number to be assigned to more than one specialized business set or single line set. The telephone sets that are assigned this number are known as a MADN group. MADN groups can be comprised of two to 32 stations and configured in either single call arrangements or multiple call arrangements.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 115 (T) 1st Revised Sheet No. 9 Cancels Original Sheet No. 9

OBSOLETE SERVICE OFFERINGS

CENTREX SERVICE(1)

III. FEATURE DESCRIPTIONS (Continued)

Network Class of Service (NCOS) - This feature defines the specific features and calling patterns available to individual stations and attendants within a customer group. Access code restrictions can be set up to restrict stations and attendants from trunk types such as local, toll, and DID. The (T) ability to use certain features like Network Speed Call, Call Back Queuing and Off Hook Queuing (D) also are assigned by NCOS.

Off Hook Queuing - Enables a call that cannot be completed because no outgoing trunk is available to wait off hook in queue for an idle trunk. Once a trunk is available, the call progresses normally.

Permanent Hold - Allows Centrex station users to put an active call on hold and return the handset to the cradle.

Public Access Lines (PAL) - Provides access to the local exchange and long distance networks (D) for the Centrex Basic lines. The number of simultaneous exchange and toll network calls to and from Centrex Basic lines is limited by the number of Public Access Lines subscribed to by the customer.

Ring Again - Allows a station user encountering a busy directory number to be notified when the busy station becomes idle and automatically re-accesses that same number. Both stations must be in the same customer group and be served by the same central office.

Speed Calling - Allows a user to place calls to a list of frequently called numbers by dialing a speed call activation code instead of dialing the complete number. The speed call numbers are programmed by the individual users at their stations. A speed dial number may be a directory number, authorization code, account code, access code or feature access code. Speed Call Lists of 30 to 70 numbers can be shared. Ten number Speed Call Lists are private and cannot be shared.

Station Controlled Conference - Allows a 500/2500 ABC station user to establish a conference call consisting of six parties.

Three-Way Conference/Call Transfer/Consultation Hold - Allows a Centrex station user to call a third party to conference him in, notify him of a call being transferred or consult with him while the other party is on hold.

* Effective July 1, 2003, Centrex Service is no longer available to new customers. Existing customers may continue to purchase at their existing rates until their term or contract expires. Centrex Service II is available to new customers as specified in Section 18.

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 115 (T) Second Revised Sheet No. 10 Cancels First Revised Sheet No. 10

OBSOLETE SERVICE OFFERINGS

CENTREX SERVICE(1)

III. FEATURE DESCRIPTIONS (Continued)

Uniform Call Distribution (UCD) - This feature allows for an even distribution of incoming calls to a listed directory number answered by a group of 500/2500 stations. This group of stations is called a UCD group. Each station has its own directory number and is assigned the UCD feature. Call Waiting Attendant Camp-on, and the Hunt Group features are not compatible with the UCD feature.

IV. RATES

A. Monthly and Rate Stability rates listed below are for the individual elements of Centrex Basic lines terminating in single line telephones. The elements include the Centrex Basic Switching function, Centrex Basic Features and the Centrex Basic line Facility. The Centrex Basic Features are listed in Section I. B. above.

Monthly 36 Month 60 Month Group Arrangements Rates Rates (2) Rates (2) Tier 1 1-20 Centrex Basic Lines (3) (4) Centrex Basic Features $ 9.30 $ 7.00 $ 6.65 Centrex Basic Switching .40 .35 .35 Centrex Basic Line Facility 15.05 14.70 14.35 Combined Features 24.75 22.05 21.35

Tier 2 21-50 Centrex Basic Lines (3) (4) Centrex Basic Features $ 8.25 $ 5.95 $ 5.65 Centrex Basic Switching .35 .30 .30 Centrex Basic Line Facility 13.95 13.60 13.25 Combined Features 22.55 19.85 19.20

Tier 3 51-200 Centrex Basic Lines (3) (4) Centrex Basic Features $ 7.95 $ 5.65 $ 5.35 Centrex Basic Switching .30 .30 .30 Centrex Basic Line Facility 13.60 13.25 12.95 Combined Features 21.85 19.20 18.60

(2) The 36 Month or 60 Month rates will apply to customers who select a Rate Stability Plan option.

(3) End User Common Line Charges will apply to all Centrex lines as prescribed by CenturyLink (T) Operating Companies Tariff F.C.C. No. 9. (T)

(4) A Service Order Charge per order and a Central Office Access Line Work Charge per Centrex line will apply when changing service (adding or rearranging lines or changing features). These charges can be found in Section 17 of this tariff.

ISSUED: April 8, 2013 EFFECTIVE: April 18, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 115 Second Revised Sheet No. 11 Cancels First Revised Sheet No. 11

OBSOLETE SERVICE OFFERINGS

CENTREX SERVICE(1)

IV. RATES (Continued)

B. Other Options

Monthly Non-Recurring Rate Charge 1. Centrex Trunk Additive (2) $5.50 (6) ( I )

2. Centrex Meridian Service (3) 4.95 (6) ( I ) Additive

3. Public Access Line (PAL) 5.50 (6) ( I )

4. For each Multiple Appearance (4) 1.38 (6) ( I ) Directory Number

5. Customer Premise Equipment (5) 3.03 (6) ( I ) Enhancement Features – Limit of 2 features

(2) Applies to the appropriate Trunk Rate, found in the Local Exchange Tariff, for lines terminating in Key and PBX Systems.

(3) In addition to the appropriate access line charge.

(4) Each Multiple Appearance Directory Number terminating on one key of a Meridian Services instrument, must appear as a Centrex Basic line on one Centrex station.

(5) Multiline non-Centrex Basic customers may select any 2 of the following, e.g. Automatic Route Selection, External Call Transfer, Speed Calling, or Conferencing (Station Controlled or Meet-Me Conference.)

(6) The service order charge, as indicated in Section 17 of this tariff, will apply if no other service activity is applicable coincidental with this service order.

ISSUED: August 18, 2008 EFFECTIVE: August 28, 2008

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 115

Original Sheet No. 12

OBSOLETE SERVICE OFFERINGS

CENTREX SERVICE(1)

IV. RATES (Continued)

C. Individual Case Basis (ICB) Arrangement (More than 200 Lines)

Before offering any ICB arrangement, the Telephone Company will file a customer specific tariff for the service with the Public Utility Commission of Texas.

The rates for the ICB arrangement will be based on the costs, payment plan and contract option selected. These factors will vary with each ICB arrangement and therefore, rates will vary.

A cost study will be performed for each ICB arrangement. These cost studies will be filed with the associated tariff.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 118

Original Sheet No. 1

OBSOLETE SERVICE OFFERINGS

CENTRAL OFFICE SERVICE & FEATURES (M)

I. SELECTIVE CLASS OF CALL SCREENING (1)

A. General

Selective Class of Call Screening enables a customer by means of Telephone Company Operator identification, to restrict outgoing toll calls from station users to only those calls which are charged to the called telephone, a third number or a calling card account.

Selective Class of Call Screening is only effective where United Telephone Company of Texas carries the call or the carrier (LEC, IXC, OSP or other entities that are affected by the terms and conditions of Substantive Rules 26.343 or 26.315) that carries the call recognizes the originating line screening which identifies the line as one that subscribes to Selective Class of Call Screening and only permits calls in conformity with that service.

However, if the customer subscribes to Selective Class of Call Screening (SCOCS), the customer will not be responsible for message charges appearing on bills rendered by the Telephone Company and which were incurred for calls placed in violation of the call screening restrictions. If a carrier for which the Telephone Company is the billing agent carries a call from a line subscribed to SCOCS, the Telephone Company will adjust such message charges when the customer brings the situation to the Telephone Company's attention. Such message charges will be charged back as uncollectible to the carrier only when the message charges relate to a call that was completed by that carrier in violation of the SCOCS data available to the carrier at the time the call was placed.

All local calls and calls to Telephone Company numbers such as local operator, repair service, Directory Assistance service, and public emergency service numbers, such as 911, will be permitted.

Selective Class of Call Screening will be available for Private Pay Telephone Service, where (T) facilities permit, as specified in Section 21 of this tariff. (T) (M)

B. Rates and Charges (M1)

The following rates and charges apply in addition to other applicable services with which it is offered:

Monthly Rate

Selective Class of Call Screening $ 2.50 Per Access Line (M1)

(1) Limited to existing customers at existing locations as of July 1, 2009.

(M) Material now appearing on this sheet was previously found in Section 18, Original Sheet No. 59.

(M1) Material now appearing on this sheet was previously found in Section 18, Original Sheet No. 60.

ISSUED: June 19, 2009 EFFECTIVE: July 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 118

Original Sheet No. 2

OBSOLETE SERVICE OFFERINGS

CENTRAL OFFICE SERVICE & FEATURES (M)

II. TOLL RESTRICTION SERVICE (1)

A. General

Toll restriction service provides a means of restricting access to the Long Distance Message Telecommunications Network by direct dial or operator handled, which includes 1+, 0+ or 0-.

Toll Restriction Service will be available to a customer only if the customer's serving central office and NNX code have a Universal Emergency Service (911) in operation.

Restriction of access to operator services prevents the customer from dialing an operator for all purposes including emergencies, assistance and the placing of toll calls. The customer indemnifies and saves harmless the Telephone Company from any and all claims, losses, or damages caused by restriction of access to operator services.

All local calls, calls to Telephone Company numbers such as repair service, and 1+800/888 will be permitted.

B. Rates and Charges (M1)

These rates and charges are in addition to the established monthly nonrecurring charges applicable to services or equipment associated with Toll Access Restriction service.

Residence Business Monthly Monthly SAE Code Rate Rate

Toll Restriction Service FCE1TLL $4.50 $5.00

Lifeline subscribers may receive Toll Restriction Service without paying a monthly rate or nonrecurring charge. (M1)

(1) Limited to existing customers at existing locations as of July 1, 2009.

(M) Material now appearing on this sheet was previously found in Section 18, Original Sheet No. 60.

(M1) Material now appearing on this sheet was previously found in Section 18, First Revised Sheet No. 61.

ISSUED: June 19, 2009 EFFECTIVE: July 1, 2009

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 123

Original Sheet No. 1

OBSOLETE SERVICE OFFERINGS

SWITCHLINK PLUS SERVICES(1)

I. GENERAL

1. SwitchLink Plus Service provides asynchronous data access at speeds up to and including 19.2 kbps and synchronous data access at speeds up to and including 56 kbps.

B. SwitchLink Plus Services are not inherently voice functional. Use of the service is limited to the transmission of digital signals.

II. DEFINITIONS

SwitchLink Plus Access Line refers to the two-wire facility connecting the customer premises to the SwitchLink Plus Services switching equipment.

SwitchLink Plus Services Service Arrangement refers to the equipment required in the serving wire center per line to support data transmission speeds over the SwitchLink Plus Service Access Line.

SwitchLink Plus Services-Serving Wire Center refers to the central office containing SwitchLink Plus Services switching equipment.

SwitchLink Plus Services Extension Line refers to a SwitchLink Plus Services Access Line when the service is provided using the SwitchLink Plus Services Extension Capability.

(1) Grandfathered service limited to existing customers at existing locations as of April 7, 2002.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 123

Original Sheet No. 2

OBSOLETE SERVICE OFFERINGS

SWITCHLINK PLUS SERVICES (1)

III. REGULATIONS

E. Service is available on a month-to-month basis with a minimum billing period of one month.

F. Touch-Tone service and equipment is required for each SwitchLink Plus Services Access Line.

H. Temporary suspension of service at the request of the customer is not allowed.

I. Regulations for Interruptions of Service apply as specified in the General Exchange Tariff.

(1) Grandfathered service limited to existing customers at existing locations as of April 7, 2002.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba Embarq SECTION 123

Original Sheet No. 3

OBSOLETE SERVICE OFFERINGS

SWITCHLINK PLUS SERVICES (1)

IV. RATES

Monthly NRC A. SwitchLink Plus Service per Access Line [1FLCSW(PL)] $95.00 $223.00

C. Optional Features (e.g., speed dial) are available at the rates provided in the applicable sections of the General Exchange Tariff.

Monthly Rate

D. SwitchLink Plus Services Mileage rates are Extension Line specified in United's IntraLATA Services Digital Link Service Tariff.

Mileage is measured in airline miles between the SwitchLink Plus Services Serving Wire Center and the customer's serving wire center.

E. Service Connections charges in Section 17 of the General Exchange Tariff are applicable to SwitchLink Plus Services service establishment.

If special or unusual line conditioning is required or unusual installations or customer requirements occur, additional time and material charges may apply for any of the above services.

(1) Grandfathered service limited to existing customers at existing locations as of April 7, 2002.

ISSUED: March 5, 2007 EFFECTIVE: April 4, 2007

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125 1st Revised Sheet No. 1 Cancels Original Sheet No. 1

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)*

I. PRIMARY RATE INTERFACE (PRI) ▲

A. General

1. Integrated Services Digital Network - Primary Rate Interface (ISDN-PRI) Service is a local exchange offering supported by the ISDN architecture.

2. ISDN-PRI Service provides a method of access to the telephone network called Primary Rate Access. Primary Rate Access is an ISDN based, DS1 access link to the telecommunications network and provides integration of multiple voice and data transmission channels on the same line. The service provides connectivity between an ISDN-PBX or other ISDN-compatible CPE and a serving central office. The basic channel structure for Primary Rate Access is twenty-three 64 Kbps B-Channels and one 64 Kbps D-Channel. After purchasing the original 23 B-Channel plus one D- Channel configuration, the customer may purchase another Primary Rate Access Line and another Primary Rate Interface as well as additional B-Channels in increments of 12.

These channels may be used to connect the customer's CPE to the Public Network (i.e., outward, inward, and two-way trunks). (D)

3. ISDN-PRI Service provides network communication paths providing the end user with access to a variety of network services and features including data, voice and video which conforms to internationally developed, published, and recognized standards generated by the International Telecommunications Union (ITU).

4. Unless specified, the regulations for ISDN-PRI Service apply in addition to the General Rules and Regulations set forth in Section 7 of this tariff.

5. ISDN-PRI Service is provided within a LATA from central offices where appropriate ISDN facilities are available as determined by the Company. Service inquiries will be necessary to determine availability. Construction Charges may apply as specified in Section 6 of this tariff.

B. Regulations

1. Customer Premises Equipment (CPE) that is compatible with ISDN-PRI Service is the customer's responsibility to provision.

▲ Central Telephone Company of Texas dba CenturyLink concurs in the charges and regulations governing this service.

* Effective January 1, 2011, this service is limited to existing facilities in service at existing locations for current customers. Current customers may migrate existing services to Integrated Services Digital Network-Primary Rate Interface (ISDN-PRI) Business Service in Section 25 of this Tariff at any time without incurring any Nonrecurring Charges or Service Charges. TDP customers may migrate existing services without incurring termination liability charges when they select a commitment period equal to or greater than the length of time remaining under their existing TDP.

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125 2nd Revised Sheet No. 2 Cancels 1st Revised Sheet No. 2

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)*

I. PRIMARY RATE INTERFACE (PRI) (Continued)

B. Regulations (Continued)

2. The Company shall not be responsible if changes in any of the equipment, operations or procedures of the Company utilized in the provisioning of ISDN-PRI Service render any facilities provided by the customer obsolete or require modification or alteration of such equipment or system or otherwise affect its use or performance.

3. Digital transmission rates at speeds less than those indicated may be accomplished as a function of the particular CPE furnished by the user.

4. Suspension of Service at the customer‘s request, as defined in Section 19 of this tariff, does not apply to ISDN-PRI Service.

5. Service Charges in Section 17 of this tariff apply unless specified Service Connection Charges are otherwise stated in Section 125.I.G.7.

6. The minimum service period for ISDN-PRI Service is six months.

7. The customer is responsible for payment of a Trouble Isolation Charge (a.k.a. (T) Maintenance of Service Charge), as set forth in Section 17 of this tariff, for visits by the (T) Company to the customer’s premises when a service difficulty resulting in a trouble report is caused by the use of equipment or facilities provided by the customer.

8. Telephone numbers transmitted via the Optional or Standard Incoming Call Identification feature are intended solely for the use of the ISDN-PRI Service subscriber. Resale of this call identification information is prohibited by this tariff.

9. Reserved

10. Non-Facility Associated Signaling (NFAS) provides the capability to serve multiple DS1’s via a single D-Channel. This feature can be ordered where switch capabilities exist as determined by the Company. When NFAS is selected, the customer will order one ISDN-PRI Service arrangement with 23 B-Channels and 1 D-Channel. Additional ISDN-PRI Services arrangements are ordered with 24 B-Channels as specified in Section 25.II.F. The D-Channel activated on the initial arrangement serves the additional ISDN-PRI arrangements.

ISSUED: May 12, 2020 EFFECTIVE: June 12, 2020 TX2020-06

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125

Original Sheet No. 3

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)* (M) (N)

I. PRIMARY RATE INTERFACE (PRI) (Continued)

B. Regulations (Continued)

10. (Continued)

After the first 23B + D PRI is purchased, a customer can purchase additional B- Channels in increments of 12. Additional Primary Rate Access Lines may be ordered in a 24B configuration. However, the Company recommends that the quantity of Primary Rate Access Lines supported by one (1) D-Channel not exceed four (4). The Company recommends the use of a backup D-Channel for the support of signaling beyond four (4) facilities.

11. This service is available only from central offices, which have the necessary facilities to provide ISDN-PRI Service on the standard network platform. In the event a customer is provided service from a non-ISDN compatible central office, the Telephone Company will provide ISDN-PRI Service from an alternative serving central office, as designated by the Telephone Company. This provision is accomplished by utilizing a ‘hubbing’ architecture and the subscriber may be required to accept a foreign NXX. When a foreign NXX is required, mileage charges applicable to TransLink Service, as specified in the Telephone Company IntraLATA Services Tariff, will apply in addition to the rates and charges included in this section. Due to the nature of the ‘hubbing’ architecture and the use of a foreign NXX, the local calling area (e.g., Extended Area Service) may change.

Similarly, if a subscriber requests ISDN-PRI Service from an alternative serving central office other than that designated by the Telephone Company, all charges applicable to TransLink Service, as specified in the Telephone Company IntraLATA Services Tariff, will apply in addition to the rates and charges included in this section.

Universal Emergency Number Service 9-1-1 calls placed over ISDN-PRI Primary Rate Access Lines provisioned via this arrangement will be identified as the alternative serving central office NXX and not the non-ISDN compatible central office NXX. The Company shall not be liable for any loss or damages arising from the emergency calls placed from ISDN-PRI Primary Rate Access Lines provisioned via an alternative serving central office.

12. This service is available only where the customer’s service location is within the provisioning limitations as determined prior to installation of the service. Should the customer’s service location exceed said limitations, service will be provided where the Company has electronically compatible facilities available, or where existing facilities can be made electronically compatible. (M)

* Effective January 1, 2011, this service is limited to existing facilities in service at existing (N) locations for current customers. Current customers may migrate existing services to Integrated Services Digital Network-Primary Rate Interface (ISDN-PRI) Business Service in Section 25 of this Tariff at any time without incurring any Nonrecurring Charges or Service Charges. TDP customers may migrate existing services without incurring termination liability charges when they select a commitment period equal to or greater than the length of time remaining under their existing TDP. (N)

(M) Material now appearing on this sheet previously appeared in Section 25.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125

Original Sheet No. 4

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)* (M) (N)

I. PRIMARY RATE INTERFACE (PRI) (Continued)

B. Regulations (Continued)

13. Rotary hunt functionality, at no additional charge, is available with ISDN-PRI Service. This functionality increases the likelihood of an incoming call being completed over an ISDN-PRI B-channel. The functionality is exclusively within the B-channels of a single ISDN-PRI service arrangement or between multiple ISDN-PRI service arrangements and is not allowed between ISDN-PRI service arrangements and other services, including but not limited to, One-Party Business Local Exchange Service and Translink.

14. ISDN-PRI Service is not offered in conjunction with Local Measured Service and Extended Area Service.

15. In order to maintain the quality of ISDN-PRI Service, the Company reserves the right to perform preventative maintenance and software updates to the network. The Company has classified this maintenance as indicated below:

Scheduled Maintenance

Demand Maintenance

16. One Directory Listing will be provided per D-Channel. Additional Directory Listings are available as specified in Section 5 of this Tariff.

C. Definitions

B-Channel – A bidirectional synchronous channel capable of supporting 64 Kbps of digital transmission.

D-Channel – A 64 Kbps digital signaling only channel for call establishment when used with Primary Rate Access. (M)

(M) Material now appearing on this sheet previously appeared in Section 25.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125

Original Sheet No. 5

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)* (M) (N)

I. PRIMARY RATE INTERFACE (PRI) (Continued)

D. Features

1. Standard Features

Dynamic Allocation of Bandwidth Allows the voice and data services to share B-Channels and arrange them as a single trunk group. This allows incoming and outgoing voice and data calls to utilize B- Channels on a call by call basis. Without this capability, each service will have a dedicated B-Channel.

Incoming Call Identification (Caller ID) Provides the customer with the telephone number of the calling party. Incoming call identification is provided via the D-Channel associated with the incoming calls on a B- Channel to a PBX.

Clear Channel Capability The B-Channels on ISDN-PRI are clear, since all signaling and control functions are handled by the D-Channel. This allows all 64 Kbps on each B-Channel to be used for customer information.

D-Channel Control of Multiple ISDN Lines Provides capability for a single D-Channel to provide signaling and control for one or more ISDN-PRI connections. After the original 23 B-Channel plus one D-Channel, the 24th channel on subsequent ISDN-PRI lines is then made available for customer use. The Company recommends the purchase of a backup D-Channel after the fourth ISDN-PRI line is purchased.

Digital Voice Transmission All voice calls are transmitted using digital signaling.

Direct Inward Dialing (DID) Signaling Permits incoming dialed calls from the exchange network to reach a specific number served by customer premises equipment (CPE) without the assistance of an attendant. It also provides for the unique identification of the call based on digits sent to the CPE by the central office. The central office will out-pulse digits to the CPE that can further process the calls as desired. The rates and charges for DID telephone numbers are in addition to the ISDN-PRI charges and are provided in Section 18 of this tariff. (M)

(M) Material now appearing on this sheet previously appeared in Section 25.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125 1st Revised Sheet No. 6 Cancels Original Sheet No. 6

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)*

I. PRIMARY RATE INTERFACE (PRI) (Continued)

D. Features (Continued)

1. Standard Features (Continued)

PBX Station ID Capability Allows the station users number (calling party) to be transmitted over the ISDN-PRI D- Channel from Direct Inward Dialing equipped CPE PBXs that use ISDN-PRI. This number is provided by the originating station and must have an associated Direct Inward Dialing telephone number working in the central office.

2. Optional Features

D-Channel Backup Provides backup for the D-Channel for a customer with multiple PRI lines by automatically switching signaling capability over to another D-Channel if service to the primary D-Channel is interrupted.

Network Ring Again Enables the customer to complete calls to a busy station without continually redialing. Certain equipment restrictions may apply.

Call-by-Call/Integrated Service Access Feature Capability Allows the customer to dynamically allocate the use of channels for ISDN-PRI Service. The customer may also choose voice or data transmission on a per call basis. In addition, the customer may also choose to subscribe to more services than channels. The Customer Premises Equipment signals the local central office as to which type of service (inward/outward trunk) to access for each call. (D)

Incoming Call Identification (Caller ID With Name and Number) Provides the customer with the telephone number and name of the calling party. Incoming call identification is provided via the D-Channel associated with incoming calls on a B-Channel to a PBX. The customer's equipment must be compatible with this service.

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125

Original Sheet No. 7

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)* (M) (N)

I. PRIMARY RATE INTERFACE (PRI) (Continued)

D. Features (Continued)

2. Optional Features (Continued)

2 B-Channel Transfer

If a call terminates at a given location, but is then forwarded to another location, two trunks between the Central Office and the original device are typically employed for the duration of the forwarded call. 2 B-Channel Transfer allows the central office switch to establish the call directly to the final destination and release the trunks going in and out of the forwarding device. This saves the customer PRI facilities and provides for more efficient use of the network. A common use of 2 B-Channel Transfer is illustrated below.

1. Outside station Initiates call to 555-1234. 2. DMS signals incoming call to PBX

1. Call is initated to 555-1234

ISDN PRI 555-1234 (Forwarded to Voice Mail) PBX #1 3. PBX notifies DMS to transfer call. Public switch ISDN 4. Call completes to Voice Mail. PRI

PBX #2 PB X #2

Voice Mail (M)

(M) Material now appearing on this sheet previously appeared in Section 25.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125

Original Sheet No. 8

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)* (M) (N)

I. PRIMARY RATE INTERFACE (PRI) (Continued)

D. Features (Continued)

2. Optional Features (Continued)

Circular Hunt

Circular Hunt provides the most efficient hunting sequence available, plus allows for much larger trunk groups than the standard ISDN-PRI packages. With circular hunt, an incoming call is completed to the next available trunk (bearer) in sequence starting from the last trunk selected. This can occur across multiple PRI facilities. The feature can support up to 220 Primary Rate Interfaces in a single hunting configuration. The standard limit is 50.

National ISDN-2 Protocol

National ISDN-2 Protocol is a communication protocol that governs interactions between the customer's equipment and the telephone network. This protocol is more advanced than the standard ISDN-PRI protocol. Most CPE is capable of using the ISDN-2 Protocol.

E911 Call Screening

E911 Call Screening provides for the transmission of PBX or Key System station information via the ISDN-PRI facility to local emergency services authorities. This provides for the possible identification of the specific location on a customer's premises where a 911 call originated. This option is available only in communities where local emergency authorities support the service in conjunction with the Company’s Private Switch Automatic Location Identification (PSALI) Service, associated with E911 Service. This service is only available in conjunction with National ISDN-2 Protocol. (M)

(M) Material now appearing on this sheet previously appeared in Section 25.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125 1st Revised Sheet No. 9 Cancels Original Sheet No. 9

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)*

I. PRIMARY RATE INTERFACE (PRI) (Continued)

E. Service Components

1. The components for ISDN-PRI Service will be as follows:

- Primary Rate Access Line - Primary Rate Interface - Primary Rate Channels

a. Primary Rate Access Line - Will provide a four-wire access loop from the customer premises to the serving central office. The transmission via this loop supports Clear Channel Capability.

b. Primary Rate Interface - Provides the multiplexing to support up to twenty-three (23) B-Channels at 64 Kbps and one (1) D-Channel for signaling also at 64 Kbps. When NFAS is ordered, the Primary Rate Interface can provide up to twenty-four B-Channels at 64 Kbps.

c. Primary Rate Channels - Will provide unlimited usage of channel that will allow either voice or data transmission up to 64 Kbps.

1) Voice calls may be completed to both ISDN and non-ISDN lines.

2) Data Transmission on the B-Channels will be at 64 Kbps within the switch and between ISDN compatible central offices. ISDN interconnection to non-ISDN equipped central offices may be potentially subjected to analog transmission or sub-rated to 56 Kbps.

3) The customer may choose to subscribe to additional non-exchange based services. The subscription to these services is in addition to the charges (D) for ISDN-PRI Service.

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125 (T) 1st Revised Sheet No. 10 Cancels Original Sheet No. 10

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)*

I. PRIMARY RATE INTERFACE (PRI) (Continued)

E. Service Components (Continued)

2. With the first ISDN-PRI Primary Rate Access Line the customer is required to purchase 23 B-Channels and an initial D-Channel.

After the initial 23B + D configuration, the customer may choose channels in increments of 12 up to twenty-three B + D or twenty-four B with NFAS, per ISDN-PRI Primary Rate Access Line (facility) to be active with a corresponding number of services (i.e., inward/outward trunks) selected. The customer may also choose to (D) subscribe to more services than channels. The Customer Premises Equipment signals the local central office as to which type of service (inward/outward trunk) to (D) access for each call.

F. Application of Rates

1. ISDN-PRI Primary Rate Access Lines furnished between a serving central office and the customer-designated premises will be charged at rates per each Primary Rate Access Line.

2. Nonrecurring charges will not be applicable for the Primary Rate Access Line or interoffice channel facilities when upgrading an existing TransLink Service to an ISDN- PRI Service.

3. ISDN-PRI Primary Rate Access Line rates, including interoffice channels if applicable, apply in addition to Primary Rate Interface and Primary Rate Channel charges.

4. If the customer chooses to purchase additional channels after purchasing the original 23B + D configuration, the customer must purchase another Primary Rate Access Line and another Primary Rate Interface as well as the additional channels. Additional channels can be purchased in increments of 12.

5. Rates and charges for optional features and functions are applied to each Primary Rate Interface for which the option is ordered.

ISSUED: December 10, 2018 EFFECTIVE: March 1, 2019 TX 18-04

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125

Original Sheet No. 11

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)* (M) (N)

I. PRIMARY RATE INTERFACE (PRI) (Continued)

G. Rates and Charges

1. ISDN-PRI Primary Rate Access Line

Primary Rate Access Line is furnished between a serving central office and the customer's designated premises. Primary Rate Access Line charges apply per point of termination.

a. Primary Rate Access Line (Intraexchange)

Monthly Nonrecurring Nonrecurring Rate First Add'l(1) 1.544 Mbps

Month to month(2) $285.00 $480.00 $110.00 12-23 months 272.00 300.00 110.00 24-35 months 254.00 150.00 110.00 36-59 months 231.00 N/A N/A 60-84 months 201.00 N/A N/A

(1) Additional facilities must be installed at the same customer designated premises on the same trip and placed on the same service order.

(2) Minimum Service Period for ISDN-PRI is six months.

b. Primary Rate Access Line (Interexchange)

The rates, charges and regulations applicable to Interexchange TransLink Services, as specified in the Company IntraLATA Services Tariff will apply for interexchange Primary Rate Access Lines. (M)

(M) Material now appearing on this sheet previously appeared in Section 25.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125

Original Sheet No. 12

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)* (M) (N)

I. PRIMARY RATE INTERFACE (PRI) (Continued)

G. Rates and Charges (Continued)

2. Primary Rate Interface

Monthly Nonrecurring Rate Charge a. Primary Rate Interface One-Way Per ISDN-PRI Primary Rate Access Line (Data only or Voice and Data)

Month to month $315.00 $400.00 12-23 months 295.00 280.00 24-35 months 277.00 130.00 36-59 months 244.00 N/A 60-84 months 210.00 N/A

b. Primary Rate Interface Two-Way Per ISDN-PRI Primary Rate Access Line

Month to month $520.00 $400.00 12-23 months $390.00 $280.00 24-35 months $367.00 $130.00 36-59 months $354.00 N/A 60-84 months $305.00 N/A (M)

(M) Material now appearing on this sheet previously appeared in Section 25.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125

Original Sheet No. 13

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)* (M) (N)

I. PRIMARY RATE INTERFACE (PRI) (Continued)

G. Rates and Charges (Continued)

3. ISDN-PRI Services will be available in combinations of Primary Rate Channels according to the limits of the Company central office type. Customers will choose the most appropriate combination(s) and will be billed for the services as appropriate. The initial configuration must be 23 B-Channels and 1 D-Channel. Additional configurations are outlined in Section 125.I.E.2 of this tariff.

a. B-Channel Charge, each channel

Monthly Nonrecurring Rate Charge

Month to month $ 15.00 $ 5.00 12-23 months 14.50 5.00 24-35 months 13.50 5.00 36-59 months 12.50 N/A 60-84 months 11.00 N/A

b. Initial D-Channel

Month to month $ 15.00 $ 5.00 12-23 months 14.50 5.00 24-35 months 13.50 5.00 36-59 months 12.50 N/A 60-84 months 11.00 N/A (M)

(M) Material now appearing on this sheet previously appeared in Section 25.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125 First Revised Sheet No. 14 Cancels Original Sheet No. 14

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)*

I. PRIMARY RATE INTERFACE (PRI) (Continued)

G. Rates and Charges (Continued)

4. Optional Features specified in Section 25, II.D.2. are available with this service (T) and are charged at the rates specified in Section 25, II.G.2. (T)

(D)

(D) * Effective January 1, 2011, this service is limited to existing facilities in service at existing locations for current customers. Current customers may migrate existing services to Integrated Services Digital Network-Primary Rate Interface (ISDN-PRI) Business Service in Section 25 of this Tariff at any time without incurring any Nonrecurring Charges or Service Charges. TDP customers may migrate existing services without incurring termination liability charges when they select a commitment period equal to or greater than the length of time remaining under their existing TDP.

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125 First Revised Sheet No. 15 Cancels Original Sheet No. 15

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)*

I. PRIMARY RATE INTERFACE (PRI) (Continued)

G. Rates and Charges (Continued)

5. Optional Feature Packages are available with this service and are charged at the (T) rates specified in Section 25, II.G.3. (T) (D)

(D)

6. Move Charge

A Move Charge, per ISDN-PRI Primary Rate Access Line, applies for each Primary Rate Access Line moved to a new location in the same building. This Move Charge is equal to the sum of the Primary Rate Access Line nonrecurring charge, Service Change Charge - Inside Moves and Premises Visit Charge specified in Section 125.I.G.7. d.

(D)

ISSUED: September 6, 2013 EFFECTIVE: September 16, 2013

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125

Original Sheet No. 16

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)* (M) (N)

I. PRIMARY RATE INTERFACE (PRI) (Continued)

G. Rates and Charges (Continued)

7. Service Connection Charges

a. Service Establishment Charges are applicable for each ISDN-PRI Primary Rate Access Line ordered, for receiving and recording information and/or taking action in connection with a customer's request, and processing the necessary data. These charges include engineering design, common centralized testing and coordination. The nonrecurring charges associated with service establishment are found in Section 125.I.G.1,2 and 3.

b. Service Change Charges are applicable for receiving and recording information and/or taking action in connection with a customer's termination change at the same premises or transfer of service responsibility request, for processing the necessary data on an existing Primary Rate Access Line. A Service Change Charge is applicable for each Primary Rate Access Line associated with the customer request (in lieu of a Service Establishment Charge).

c. Premises Visit Charges are applicable per Primary Rate Access Line, for the termination of a channel at a customer's premises or for termination change at the same premises. Only one Premises Visit Charge applies when more than one channel service of the same type is terminated or moved at the same premises at the same time.

d. Charges Nonrecurring Charge 1) Service Change Charge per Primary Rate Access Line

a) For termination change at the same premises, physical, per Primary Rate Interface $165.00

b) For termination change at the same premises, programming, per Primary Rate Interface 35.00

2) Premises Visit Charge per Primary Rate Access Line or for an inside move 125.00 (M)

(M) Material now appearing on this sheet previously appeared in Section 25.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125

Original Sheet No. 17

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)* (M) (N)

I. PRIMARY RATE INTERFACE (PRI) (Continued)

G. Rates and Charges (Continued)

8. Termination Liability Charges

a. If a customer under a Term Discount Plan (TDP) disconnects all or a portion of ISDN PRI Service prior to the expiration of the TDP, then a Termination Liability Charge will apply to those services that are disconnected. The Termination Liability Charge will be a one-time charge equal to sum of 50% of the payments remaining for the rest of the TDP. If Construction Charges were applied to the service being terminated, any termination charges associated with Construction Charges will also apply.(1)

b. Rate increases or decreases will automatically be applied to the monthly term plan rates for the remaining term of the TDP. If a Company initiated rate increase to any rate element or combination of rate elements causes the charges for the entire ISDN PRI Service under the TDP to increase by 10% or more at any one time, then the customer may cancel the TDP without incurring termination liability charges provided the customer notifies the Company within 30 days after the effective date of the rate increase.(1)

c. The customer can extend TDP commitment periods at any time during the term of the plan, up to a maximum of 84 months. The number of months accrued in the current plan will apply toward the new plan selected.

d. At the end of the TDP service commitment period, the customer may subscribe to a new TDP at the prevailing rates. If the customer does not select a new TDP, the prevailing rates applicable for the expired TDP will continue in effect for as long as the customer chooses to continue subscribing to the ISDN-PRI services installed under the expired TDP. Additional ISDN-PRI services installed after the TDP expiration date will not be eligible for the TDP rates and will be charged at the prevailing month to month rates unless the customer selects a TDP for those services.

(1) Customers under contract prior to December 15, 2002, are grandfathered pursuant to the terms and conditions outlined in the contract. (M)

(M) Material now appearing on this sheet previously appeared in Section 25.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011

United Telephone Company of Texas, Inc. GENERAL EXCHANGE TARIFF dba CenturyLink SECTION 125

Original Sheet No. 18

OBSOLETE SERVICE OFFERINGS

INTEGRATED SERVICES DIGITAL NETWORK (ISDN)* (M) (N)

I. PRIMARY RATE INTERFACE (PRI) (Continued)

G. Rates and Charges (Continued)

8. Termination Liability Charges (Continued)

e. Termination Liability Charges will not apply when a service or rate element under a TDP is disconnected prior to the expiration of a selected service period as a result of a change in tariff jurisdiction and/or a customer requested upgrade to a next generation service offering, under the following conditions:

1) The service period of the new TDP for the new service offering is a period equal to or exceeding the remaining service period of the disconnected TDP, and

2) The service orders to install the new service and disconnect the old service are related together, and there is no lapse in service between the installation of the new service and the disconnection of the old service, and

3) The service orders to install the new service and disconnect the old service are for the same customer at the same location.

f. The Company will determine whether the replacement service qualifies as a next generation service offering.

g. Nonrecurring charges and Service Connection Charges for the new service will apply according to the requirements of the new service. (M)

(M) Material now appearing on this sheet previously appeared in Section 25.

ISSUED: December 15, 2010 EFFECTIVE: January 1, 2011