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                                                                    EXHIBIT 10.5

                       MCI WORLDCOM NETWORK SERVICES, INC.

Confidential Treatment. The portions of this exhibit that have been replaced
with "[*****]" have been filed separately with the Securities and Exchange
Commission and are the subject of an application for confidential treatment.

                      TELECOMMUNICATIONS SERVICES AGREEMENT
                               (SWITCHED SERVICES)

         This TELECOMMUNICATIONS SERVICES AGREEMENT (the "TSA") is entered into
as of the 30 day of September, 2000, by and between MCI WORLDCOM NETWORK
SERVICES, INC. (successor in interest to WorldCom Network Services, Inc.), a
Delaware corporation, with its principal office at 6929 North Lakewood Avenue,
Tulsa, Oklahoma 74117 ("MCI WORLDCOM") and VALOR TELECOMMUNICATIONS ENTERPRISES,
L.L.C., a Delaware corporation, with its principal office at 201 East John
Carpenter Freeway, Irving, Texas 75039 ("CUSTOMER").

         In consideration of good and valuable consideration, the receipt and
sufficiency of which are acknowledged, the parties agree as follows:

1.       SWITCHED SERVICES; OTHER DOCUMENTS; START OF SERVICE.

         (A)      Services MCI WorldCom agrees to provide and Customer agrees to
         accept and pay for switched telecommunications services and other
         associated services (collectively the "SWITCHED SERVICES") as further
         described in the "ATTACHMENTS" attached hereto and incorporated herein
         by reference, which describe the particular services, rates, specific
         terms and other information necessary or appropriate for MCI WorldCom
         to provide the Switched Services to Customer. The Switched Services
         provided by MCI WorldCom are subject to (i) the terms and conditions
         contained in this TSA and the Program Enrollment Terms (the "PET")
         which is attached hereto and incorporated herein by reference, (ii) the
         rates and discounts and other applicable terms set forth in
         Attachment(s) attached hereto from time to time and incorporated herein
         by reference, and (iii) each Service Request (described below) which is
         accepted hereunder. The PET, as subscribed to by the parties, shall set
         forth the Effective Date, the Service Term, Customer's minimum monthly
         commitment, if any, and other information necessary to provide the
         Switched Services under this TSA. In the event of a conflict between
         the terms of this TSA, the PET, the Attachments and the Service
         Request(s), the following order of precedence will prevail: (1) the
         PET, (2) the Attachments, (3) this TSA, and (4) Service Request(s).
         This TSA, the PET, and the applicable Attachments are sometimes
         collectively referred to as the "AGREEMENT".

         (B)      Service Requests Customers requests to initiate or cancel
         Switched Services shall be described in an appropriate MCI WorldCom
         Service Request ("SERVICE REQUEST"). A Service Request may consist of
         machine readable tapes, facsimiles or other means approved by MCI
         WorldCom. Further, Service Requests shall specify all reasonable
         information, as determined by MCI WorldCom, necessary or appropriate
         for MCI WorldCom to provide the Switched Service(s) in question, which
         shall include without limitation, the type, quantity and end point(s)
         (when necessary) of circuits comprising a Service Interconnection as
         described in the applicable Service Schedules, or automatic number
         identification ("ANI") information relevant to the Switched Service(s),
         the

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         "Requested Service Date", and charges, if any, relevant to the Switched
         Services described in the Service Request.

         (C)      Start of Service MCI WorldCom's obligation to provide and
         Customer's obligation to accept and pay for non-usage sensitive charges
         for Switched Services shall be binding to the extent provided for in
         this Agreement upon the submission of an acceptable Service Request to
         MCI WorldCom by Customer. Customers obligation to pay for usage
         sensitive charges for Switched Services shall commence with respect to
         any Switched Service as of the date the Switched Service in question is
         made available to and used by Customer ("START OF SERVICE"), but in no
         event later than the "REQUESTED SERVICE DATE" if such Switched Service
         is available for Customer's use as of such Requested Service Date.
         Start of Service for particular Services shall be further described in
         the Attachment(s) relevant to the Switched Services in question.

2.       CANCELLATION.

         (A)      Cancellation Charge At any time after the Effective Date,
         Customer may cancel this Agreement if Customer provides written
         notification thereof to MCI WorldCom not less than thirty (30) days
         prior to the effective date of cancellation. In such case (or in the
         event MCI WorldCom terminates this Agreement as provided in Section 7),
         Customer shall pay to MCI WorldCom all charges for Services provided
         through the effective date of such cancellation plus a cancellation
         charge (the "CANCELLATION CHARGE") equal to one hundred percent (100%)
         of Customer's commitment(s), if any, (as described in the PET) that
         would have become due for the unexpired portion of the Service Term.

         (B)      Liquidated Damages It is agreed that MCI WorldCom's damages in
         the event Customer cancels this Agreement shall be difficult or
         impossible to ascertain. The provision for a Cancellation Charge in
         Subsection 2(A) above is intended, therefore, to establish liquidated
         damage in the event of a cancellation and is not intended as a penalty.

         (C)      Cancellation Without Charge Notwithstanding anything to the
         contrary contained in Subsection 2(A) above, Customer may cancel this
         Agreement, as provided below, without incurring any cancellation charge
         (other than payment for Services provided by MCI WorldCom up through
         the effective date of cancellation) if (i) MCI WorldCom fails to
         provide a network as warranted in Section 8 below; (ii) MCI WorldCom
         fails to deliver call detail records promptly based on the frequency
         selected by Customer (i.e., monthly, weekly or daily); or (iii) MCI
         WorldCom fails to submit ANI(s) relevant to Customer's Service Requests
         to the applicable local exchange companies ("LECS") within the time
         period described in applicable Attachment(s). Provided, however,
         Customer must give MCI WorldCom written notice of any such default and
         an opportunity to cure such default within five (5) days of the notice.
         In the event MCI WorldCom fails to cure any such default within the
         five-day period on more than three (3) occasions within any six (6)
         month period, Customer may cancel this Agreement without incurring any
         cancellation charge.

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3.       CUSTOMER'S END USERS.

         (A)      End Users Customer will obtain, and upon MCI WorldCom's
         request provide MCI WorldCom (within two (2) business days of the date
         of the request), a written Letter of Agency ("LOA") acceptable to MCI
         WorldCom (or with any other means if approved by the Federal
         Communications Commission ("FCC"), the applicable public utility
         commission ("PUC") and the applicable LEC), for each ANI indicating the
         consent of such end user of Customer ("END USER") to be served by
         Customer and transferred (by way of change of such End User's
         designated presubscribed interexchange carder (PIC)) to the MCI
         WorldCom network prior to submitting a Service Request to MCI WorldCom.
         Each LOA will provide, among other things, that the End User has
         consented to the transfer being performed by Customer or Customers
         designee. When applicable, Customer will be responsible for notifying
         its End Users, in writing (or by any other means if approved by the
         FCC, the applicable PUC and the applicable LEC) that (i) a transfer
         charge will be reflected on their LEC bill for effecting a change in
         their PIC, (ii) the entity name under which their interstate,
         intrastate, local and/or operator services will be billed (if different
         from Customer), and (iii) the "primary" telephone number(s) to be used
         for maintenance and questions concerning their telecommunications
         services and/or billing. Customer agrees to send MCI WorldCom a copy of
         the documentation Customer uses to satisfy the above requirements
         promptly upon request of MCI WorldCom. MCI WorldCom may change the
         foregoing requirements for Customers confirming orders and/or for
         notifying End Users regarding the transfer charge at any time in order
         to conform with applicable FCC and state regulations. Provided,
         however, Customer will be solely responsible for ensuring that the
         transfer of End Users to the MCI WorldCom network conforms with
         applicable FCC and state regulations, including without limitation, the
         regulations established by the FCC with respect to verification of
         orders for long distance service generated by telemarketing as
         promulgated in 47 C.F.R., Part 64, Subpart K, Section 64.1100 or any
         successor regulation(s).

         (B)      Transfer Charges/Disputed Transfers Customer agrees that it is
         responsible for (i) all charges incurred by MCI WorldCom to change the
         PIC of End Users to the MCI WorldCom network, (ii) all charges incurred
         by MCI WorldCom to change End Users back to their previous PIC arising
         from disputed transfers to the MCI WorldCom network plus, at MCI
         WorldCom's option, an administrative charge equal to twenty percent
         (20%) of such charges, and (iii) any other damages or costs suffered by
         or awards against MCI WorldCom resulting from disputed transfers.

         (C)      Excluded ANIs Customer agrees to provide all ANIs to be
         carried on the MCI WorldCom network prior to the provisioning of such
         ANIs with the LECs. MCI WorldCom has the right to reject any ANI
         supplied by Customer for any of the following reasons: (i) MCI WorldCom
         is not authorized to provide or does not provide long distance services
         in the particular jurisdiction in which the ANI is located, (ii) a
         particular ANI submitted by Customer is not in proper form, (iii)
         Customer is not certified to provide long distance services in the
         jurisdiction in which the ANI is located, (iv) Customer is in material
         default of this Agreement, (v) Customer fails to cooperate with MCI
         WorldCom in implementing reasonable verification processes determined
         by MCI

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         WorldCom to be necessary or appropriate in the conduct of business,
         (vi) such ANI is rejected by a LEC (e.g., "PIC freezes"), or (vii) any
         other circumstance reasonably determined by MCI WorldCom which could
         adversely affect MCI WorldCom's performance under this Agreement or MCI
         WorldCom's general ability to transfer its other customers or other end
         users to the MCI WorldCom network, including without limitation, MCI
         WorldCom's ability to electronically effect PIC changes with the LECs.
         In the event MCI WorldCom rejects an ANI, MCI WorldCom will notify
         Customer of its decision specifically describing the rejected ANI and
         the reason(s) for rejecting that ANI, and will not incur any further
         liability under this Agreement with regard to that ANI. Further, any
         ANI previously requested by Customer for Switched Services may be
         deactivated by MCI WorldCom if no Switched Services billings relevant
         thereto are generated in any three (3) consecutive calendar
         month/billing periods. MCI WorldCom will be under no obligation to
         accept ANIs submitted by Customer within the last full calendar month
         period preceding the scheduled expiration of the Service Term.

         (D)      Records Customer will maintain documents and records
         ("RECORDS") supporting Customer's re-sale of Switched Services,
         including, but not limited to, appropriate and valid documentation of
         each subscribing End User's authorization to Customer to act as the End
         User's PIC for a period of not less than twelve (12) months or such
         longer period as may be required by applicable law, rule or regulation.
         Customer shall indemnify MCI WorldCom for any and all costs, charges or
         expenses incurred by MCI WorldCom arising from disputed PIC selections
         involving Switched Services to be provided to Customer.

         (E)      Customer Service Customer will be solely responsible for
         billing its End Users and providing such End Users with customer
         service. Customer agrees to notify MCI WorldCom as soon as reasonably
         possible in the event an End User notifies Customer of problems
         associated with the Switched Services, including without limitation,
         excess noise, echo, or loss of service.

4.       CUSTOMER'S RESPONSIBILITIES.

         (A)      Expedite Charges In the event Customer requests expedited
         services and/or changes to Service Requests and MCI WorldCom agrees to
         such request, MCI WorldCom will pass through the charges assessed by
         any supplying parties (e.g., local access providers) for such expedited
         charges and/or changes to Service Requests involved at the same rate to
         Customer. MCI WorldCom may further condition its performance of such
         request upon Customer's payment of such additional charges to MCI
         WorldCom.

         (B)      Fraudulent Calls Customer shall indemnify and hold MCI
         WorldCom harmless from any and all costs, expenses, damages, claims or
         actions arising from fraudulent calls of any nature which may comprise
         a portion of the Switched Services to the extent that the party
         claiming the call(s) in question to be fraudulent is (or had been at
         the time of the call) an End User of such Switched Services through
         Customer or an end user of the Switched Services through Customers
         distribution channels. Customer shall not be excused from paying MCI
         WorldCom for Switched Services provided to Customer or

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         any portion thereof on the basis that fraudulent calls comprised a
         corresponding portion of the Switched Services. In the event MCI
         WorldCom discovers fraudulent calls being made (or reasonably believes
         fraudulent calls are being made), nothing contained herein shall
         prohibit MCI WorldCom from taking immediate action (without notice to
         Customer) that is reasonably necessary to prevent such fraudulent calls
         from taking place, including without limitation, denying Switched
         Services to particular ANIs or terminating Switched Services to or from
         specific locations. Provided, however, nothing contained herein will
         impose any obligation on MCI WorldCom to take any action with respect
         to fraudulent calls.

5.       CHANGES AND PAYMENT TERMS.

         (A)      Payment MCI WorldCom billings for Switched Services hereunder
         are made on a monthly basis (or such other basis as may be mutually
         agreed to by the parties) following Start of Service. Subject to
         Subsection 5(C) below, Switched Services shall be billed at the rates
         set forth in the applicable Attachment(s). Discounts, if any,
         applicable to the rates for certain Services are set forth in the
         applicable Attachment(s). Customer will pay all undisputed charges
         relative to each MCI WorldCom invoice for Switched Services within
         thirty (30) days of the invoice date set forth on each MCI WorldCom
         invoice to Customer ("DUE DATE"). If payment Is not received by MCI
         WorldCom on or before the Due Date, Customer shall also pay a late fee
         in the amount of the lesser of one and one-half percent (1-1/2%) of the
         unpaid balance of the charges for Switched Services rendered per month
         or partial month that such payment is late, or the maximum lawful rate
         under applicable state law.

         (B)      Taxes Customer acknowledges and understands that MCI WorldCom
         computes all charges herein exclusive of any applicable federal, state
         or local use, excise, gross receipts, sales and privilege taxes,
         duties, fees or similar liabilities (other than general income or
         property taxes), whether charged to or against MCI WorldCom or Customer
         because of the Switched Services furnished to Customer ("ADDITIONAL
         CHARGES"). Customer shall pay such Additional Charges in addition all
         other charges provided for herein. Customer will not be liable for
         certain Additional Charge if Customer provides MCI WorldCom with an
         appropriate exemption certificate.

         (C)      Modification of Charges MCI WorldCom reserves the right to
         eliminate particular Switched Services and/or modify charges for
         particular Switched Services (which charge modifications shall not
         exceed then-current generally available MCI WorldCom charges for
         comparable services), upon not less than sixty (60) days prior notice
         to Customer, which notice will state the effective date for the charge
         modification. In the event MCI WorldCom notifies Customer of the
         elimination of a particular Switched Service and/or an increase in the
         charges, Customer may terminate this Agreement without incurring a
         cancellation charge (other than payment for Services provided by MCI
         WorldCom up through the effective date of cancellation) only with
         respect to the Switched Service(s) affected by the increase in charges.
         In order to cancel such Switched Service(s), Customer must notify MCI
         WorldCom, in writing, at least 30 days prior to the effective date of
         the increase in charges. In the event Customer cancels

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         its subscription to a particular Switched Service as described in this
         Subsection 5(C), MCI WorldCom and Customer agree to negotiate in good
         faith concerning Customers minimum monthly commitment, if any,
         described in the PET.

         (D)      Billing Disputes Notwithstanding the foregoing, amounts
         reasonably disputed by Customer (along with late fees attributable to
         such amounts) shall apply but shall not be due and payable for a period
         of sixty (60) days following the Due Date therefor, provided Customer:
         (i) pays all undisputed charges on or before the Due Date, (ii)
         presents a written statement and supporting documentation of any
         billing discrepancies to MCI WorldCom in reasonable detail on or before
         the Due Date of the invoice in question, and (iii) negotiates in good
         faith with MCI WorldCom for the purpose of resolving such dispute
         within said sixty (60) day period. In the event such dispute is
         mutually agreed upon and resolved in favor of MCI WorldCom, Customer
         agrees to pay MCI WorldCom the disputed amounts together with any
         applicable late fees within ten (10) days of the resolution (the
         "ALTERNATE DUE DATE"). In the event such dispute is mutually agreed
         upon and resolved in favor of Customer, Customer will receive a credit
         for the disputed charges in question and the applicable late fees. In
         the event MCI WorldCom has responded to Customer's dispute in writing
         and the parties fail to mutually resolve or settle the dispute within
         such sixty (60) day period (unless MCI WorldCom has agreed in writing
         to extend such period) all disputed amounts together with late fees
         shall become due and payable, and this provision shall not be construed
         to prevent Customer from pursuing any available legal remedies. MCI
         WorldCom shall not be obligated to consider any Customer notice of
         billing discrepancies which are received by MCI WorldCom more than
         sixty (60) days following the Due Date of the invoice in question.

6.       CREDIT; CREDITWORTHINESS.

         (A)      Credit Customers execution of this Agreement signifies
         Customers acceptance of MCI WorldCom's initial and continuing credit
         approval procedures and policies. MCI WorldCom reserves the right to
         withhold initiation or full implementation of any or all Switched
         Services under this Agreement pending MCI WorldCom's initial
         satisfactory credit review and approval thereof which may be
         conditioned upon terms specified by MCI WorldCom, Including, but not
         limited to, security for payments due hereunder in the form of a cash
         deposit or other means. MCI WorldCom reserves the right to modify its
         requirements, if any, with respect to any security or other assurance
         provided by Customer for payments due hereunder in light of Customer's
         actual usage when compared to projected usage levels upon which any
         security or assurance requirement was based.

         (B)      Creditworthiness If at any time there is a material adverse
         change in Customer's creditworthiness, then in addition to any other
         remedies available to MCI WorldCom, MCI WorldCom may elect, in its sole
         discretion, to exercise one, or more of the following remedies: (i)
         cause Start of Service for Switched Services described in a previously
         executed Service Request to be withheld; (ii) cease providing Switched
         Services pursuant to a Suspension Notice in accordance with Section
         7(A); (iii) decline to accept a Service Request or other requests from
         Customer to provide Switched Services

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         which MCI WorldCom may otherwise be obligated to accept; and/or (iv)
         condition its provision of Switched Services or acceptance of a Service
         Request on Customers assurance of payment which shall be a deposit or
         such other means to establish reasonable assurance of payment. An
         adverse material change in Customers creditworthiness shall include,
         but not be limited to: (i) Customer's material default of its
         obligations to MCI WorldCom under this or any other agreement with MCI
         WorldCom; (ii) failure of Customer to make full payment of all
         undisputed charges due hereunder on or before the Due Date (or disputed
         charges on or before the Alternate Due Date) on three (3) or more
         occasions during any period of twelve (12) or fewer months or Customers
         failure to make such payment on or before the Due Date (or the
         Alternate Due Date, if applicable) in any two (2) consecutive months;
         (iii) acquisition of Customer (whether in whole or by majority or
         controlling interest) by an entity which is Insolvent, which is subject
         to bankruptcy or insolvency proceedings, which owes past due amounts to
         MCI WorldCom or any entity affiliated with MCI WorldCom or which is a
         materially greater credit risk than Customer; or, (iv) Customer's being
         subject to or having filed for bankruptcy or insolvency proceedings or
         the legal insolvency of Customer.

7.       REMEDIES FOR BREACH.

         (A)      Suspension of Service In the event all undisputed charges due
         pursuant to MCI WorldCom's invoice are not paid in full by the Due Date
         or disputed charges owed by Customer, if any, are not paid in full by
         the Alternate Due Date, MCI WorldCom shall have the right, after giving
         Customer at least five (5) days prior notice and opportunity to pay
         such charges within such 5-day period, to suspend all or any portion of
         the Switched Services to Customer ("SUSPENSION NOTICE") until such time
         (designated by MCI WorldCom in its Suspension Notice) as Customer has
         paid in full all undisputed charges then due to MCI WorldCom, including
         any late fees. Following such payment, MCI WorldCom shall reinstitute
         Switched Services to Customer only when Customer provides MCI WorldCom
         with satisfactory assurance of Customers ability to pay for such
         Switched Services (i.e., a deposit, letter of credit or other means
         acceptable to MCI WorldCom) and Customers advance payment of the cost
         of reinstituting such Switched Services. If Customer fails to make the
         required payment by the date set forth in the Suspension Notice,
         Customer will be deemed to have canceled this Agreement as of the date
         set forth in the Suspension Notice which cancellation shall not relieve
         Customer for payment of the Cancellation Charge as described in Section
         2.

         (B)      Disconnection of Service In the event Customer is in material
         breach of this Agreement, including without limitation, failure to pay
         all undisputed charges due hereunder by the date stated in the
         Suspension Notice described in Subsection 7(A) above, MCI WorldCom
         shall have the right, after giving Customer at least five (5) days
         prior written notice and opportunity to cure (which notice may be given
         instead of or in conjunction with the Suspension Notice described in
         Subsection 7(A) above), and in addition to foreclosing any security
         interest MCI WorldCom may have, to (I) disconnect all or any portion
         the Switched Services being provided hereunder and/or terminate this
         Agreement: (ii) withhold billing information from Customer; and/or
         (iii) contact the End Users (for whom calls are originated and
         terminated solely over facilities comprising the

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         MCI WorldCom network) directly and bill such End Users directly until
         such time as MCI WorldCom has been paid in full for the amount owed by
         Customer. If Customer fails to make payment by the date stated in the
         Suspension Notice and MCI WorldCom, after giving Customer five (5) days
         prior written notice, terminates this Agreement as provided in this
         Section 7, such termination shall not relieve Customer for payment of
         the Cancellation Charge as described in Section 2 above.

8.       WARRANTY. MCI WorldCom will use reasonable efforts under the
circumstances to maintain its overall network quality. The quality of Switched
Services provided hereunder shall be consistent with telecommunications common
carrier industry standards, government regulations and sound business practices.
MCI WORLDCOM MAKES NO OTHER WARRANTIES ABOUT THE SWITCHED SERVICES PROVIDED
HEREUNDER, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO, ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE.

9.       LIABILITY; GENERAL INDEMNITY; REIMBURSEMENT.

         (A)      Limited Liability IN NO EVENT WILL EITHER PARTY HERETO BE
         LIABLE TO THE OTHER PARTY FOR ANY INDIRECT, SPECIAL, INCIDENTAL OR
         CONSEQUENTIAL LOSSES OR DAMAGES, INCLUDING WITHOUT LIMITATION, LOSS OF
         REVENUE, LOSS OF CUSTOMERS OR CLIENTS, LOSS OF GOODWILL OR LOSS OF
         PROFITS ARISING IN ANY MANNER FROM THIS AGREEMENT AND THE PERFORMANCE
         OR NONPERFORMANCE OF OBLIGATIONS HEREUNDER.

         (B)      General Indemnity In the event parties other than Customer
         (e.g., Customer's End Users) shall have use of the Switched Services
         through Customer, then Customer agrees to forever indemnify and hold
         MCI WorldCom, its affiliated companies and any third-party provider or
         operator of facilities employed in provision of the Switched Services
         harmless from and against any and all claims, demands, suits, actions,
         losses, damages, assessments or payments which those parties may assert
         arising out of or relating to any defect in the Switched Services or
         MCI WorldCom's provision or nonprovision of Switched Services under
         this Agreement.

         (C)      Reimbursement Customer agrees to reimburse MCI WorldCom for
         all reasonable costs and expenses incurred by MCI WorldCom due to MCI
         WorldCom's direct participation (either as a party or witness) in any
         administrative, regulatory or criminal proceeding concerning Customer
         if MCI WorldCom's involvement in said proceeding is based solely on MCI
         WorldCom's provision of Switched Services to Customer.

10.      FORCE MAJEURE. If MCI WorldCom's performance of this Agreement or any
obligation hereunder is prevented, restricted or interfered with by causes
beyond its reasonable control including, but not limited to, acts of God, fire,
explosion, vandalism, cable cut, storm or other similar occurrence, any law,
order, regulation, direction, action or request of the United States government,
or state or local governments, or of any department, agency, commission, court,
bureau, corporation or other instrumentality of any one or more such
governments, or of any

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civil or military authority, or by national emergency, insurrection, riot, war,
strike, lockout or work stoppage or other labor difficulties, or supplier
failure, shortage, breach or delay, then MCI WorldCom shall be excused from such
performance on a day-to-day basis to the extent of such restriction or
interference. MCI WorldCom shall use reasonable efforts under the circumstances
to avoid or remove such causes of nonperformance and shall proceed to perform
with reasonable dispatch whenever such causes are removed or cease.

11.      STATE CERTIFICATION. Customer warrants that in all jurisdictions in
which it provides long distance services that require certification, it has
obtained the necessary certification from the appropriate governmental authority
and, if requested by MCI WorldCom, agrees to provide proof of such certification
acceptable to MCI WorldCom. In the event Customer is prohibited, either on a
temporary or permanent basis, from continuing to conduct its telecommunications
operations in a given jurisdiction, Customer shall (i) immediately notify MCI
WorldCom by facsimile, (ii) send written notice to MCI WorldCom within
twenty-four (24) hours of such prohibition, and (iii) take immediate steps to
suspend or discontinue its use of Switched Services in such jurisdiction.

12.      INTERSTATE/INTRASTATE SERVICE. Except with respect to Switched Services
specifically designated an Intrastate Services or international Services, the
rates provided to Customer in the applicable Attachments are applicable only to
Switched Services if such Switched Services are used for carrying interstate
telecommunications (i.e., Switched Services subject to FCC jurisdiction). MCI
WorldCom shall not be obligated to provide Switched Services with end points
within a single state or Switched Services which originate/terminate at points
both of which are situated within a single state. In those states where MCI
WorldCom is authorized to provide intrastate service (i.e., telecommunications
transmission services subject to the jurisdiction of state regulatory
authorities), MCI WorldCom will, at its option, provide intrastate Switched
Services pursuant to applicable state laws, regulations and applicable tariff,
if any, filed by MCI WorldCom with state regulatory authorities as required by
applicable law.

13.      AUTHORIZED USE OF MCI WORLDCOM NAME; PRESS RELEASES. Without MCI
WorldCom's prior written consent, Customer shall not (i) refer to itself as an
authorized representative of MCI WorldCom whenever it refers to the Switched
Services in promotional, advertising or other materials, or (ii) use MCI
WorldCom's logos, trade marks, service marks, or any variations thereof in any
of its promotional, advertising or other materials. Additionally, Customer shall
provide to MCI WorldCom for its prior review and written approval, all
promotions, advertising or other materials or activity using or displaying MCI
WorldCom's name or the Services to be provided by MCI WorldCom. In the event MCI
WorldCom fails to provide its approval such promotion, advertising or other
materials shall be deemed not approved. Customer agrees to change or correct, at
Customer's expense, any such material or activity which MCI WorldCom, in its
sole judgment, determines to be inaccurate, misleading or otherwise
objectionable for any reason. Customer is explicitly authorized to only use the
following statements in its sales literature or if in response to an inquiry by
Customer's End User: (i) "Customer utilizes the MCI WorldCom network", (ii)
"Customer utilizes MCI WorldCom's facilities", (iii) "MCI WorldCom provides only
the network facilities", and (iv) "MCI WorldCom is our network services
provider". Except as specifically provided in this Section 13, the parties
further agree that any press release, advertisement or publication

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generated by a party regarding this Agreement, the Services provided hereunder
or in which a party desires to mention the name of the other party or the other
party's parent or affiliated company(ies), will be submitted to the
non-publishing party for its written approval prior to publication.

14.      NOTICES. Notices under this Agreement shall be in writing and delivered
to the person identified below at the offices of the parties as they appear
below or as otherwise provided for by proper notice hereunder. Customer shall
notify MCI WorldCom in writing if Customer's billing address is different than
the address shown below. The effective date for any notice under this Agreement
shall be the date of actual receipt of such notice by the appropriate party,
notwithstanding the date of mailing or transmittal via hand delivery or
facsimile.

         IF TO MCI WORLDCOM:      MCI WORLDCOM Network Services, Inc.
                                  6929 North Lakewood Avenue
                                  Tulsa, Oklahoma 74117
                                  Attn: Wholesale Services

         IF TO CUSTOMER:          Valor Telecommunications Enterprises, L.L.C.
                                  201 East John Carpenter Freeway
                                  Irving, Texas 75039
                                  Attn: Don Perkins
                                  Telephone No.: 972-373-1038
                                  Fax No.: 972-373-1290

15.      NO-WAIVER. No term or provision of this Agreement shall be deemed
waived and no breach or default shall be deemed excused unless such waiver or
consent shall be in writing and signed by the party claimed to have waived or
consented. A consent to waiver of or excuse for a breach or default by either
party, whether express or implied, shall not constitute a consent to, waiver of,
or excuse for any different or subsequent breach or default.

16.      PARTIAL INVALIDITY; GOVERNMENT ACTION.

         (A)      Partial Invalidity If any part of any provision of this
         Agreement or any other agreement, document or writing given pursuant to
         or in connection with this Agreement shall be invalid or unenforceable
         under applicable law, rule or regulation, that part shall be
         ineffective to the extent of such invalidity only, without in any way
         affecting the remaining parts of that provision or the remaining
         provisions of this Agreement. In such event, Customer and MCI WorldCom
         will negotiate in good faith with respect to any such invalid or
         unenforceable part to the extent necessary to render such part valid
         and enforceable.

         (B)      Government Action Upon thirty (30) days prior notice, either
         party shall have the right, without liability to the other, to cancel
         an affected portion of the Switched Service if any material rate, or
         term contained in this Agreement and relevant to the affected Switched
         Service is substantially changed (to the detriment of the terminating
         party) or found to be unlawful or the relationship between the parties
         hereunder is found to be

                                  Page 10 of 13
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         unlawful by order of the highest court of competent jurisdiction to
         which the matter is appealed, the FCC, or other local, state or federal
         government authority of competent jurisdiction. Provided, the 30-day
         notice required hereunder may be shortened as necessary if such order
         goes into effect prior to thirty (30) days.

17.      EXCLUSIVE REMEDIES. Except as otherwise specifically provided for
herein, the remedies set forth Agreement comprise the exclusive remedies
available to either party at law or in equity.

18.      USE OF SERVICE. Upon MCI WorldCom's acceptance of a Service Request
hereunder, MCI WorldCom will provide the Switched Services specified therein to
Customer upon condition that such Switched Services shall not be used for any
unlawful purpose. The provision of Switched Services is not intended to and will
not create a partnership or joint venture between the parties or result in a
joint communications service offering to any third parties, and MCI WorldCom and
Customer agree that this Agreement, to the extent it is subject to FCC
regulation, is an inter-carrier agreement which is not subject to the filing
requirements of Section 211(a) of the Communications Act of 1934 (47 U.S.C.
Section 211(a)) as implemented in 47 C.F.R. Section 43.51.

19.      CHOICE OF LAW: FORUM.

         (A)      Law This Agreement shall be construed under the laws of the
         State of Oklahoma without regard to choice of law principles.

         (B)      Forum Any legal action or proceeding with respect to this
         Agreement may be brought in the Courts of the State of Oklahoma in and
         for the County of Tulsa or the United States of America for the
         Northern District of Oklahoma. By execution of this Agreement, both
         Customer and MCI WorldCom hereby submit to such jurisdiction, hereby
         expressly waiving whatever rights may correspond to either of them by
         reason of their present or future domicile. In furtherance of the
         foregoing, Customer and MCI WorldCom hereby agree to service by U.S.
         Mail at the notice addresses referenced in Section 14. Such service
         shall be deemed effective upon the earlier of actual receipt or seven
         (7) days following the date of posting.

20.      PROPRIETARY INFORMATION.

         (A)      Confidential Information The parties understand and agree that
         the terms and conditions of this Agreement (but not the existence
         thereof), all documents referenced herein (including invoices to
         Customer for Switched Services provided hereunder), communications
         between the parties regarding this Agreement or the Switched Services
         to be provided hereunder (including price quotes to Customer for any
         services proposed to be provided or actually provided hereunder), as
         well as such information relevant to any other agreement between the
         parties (collectively "CONFIDENTIAL INFORMATION"), are confidential as
         between Customer and MCI WorldCom.

         (B)      Limited Disclosure A party shall not disclose Confidential
         Information (unless subject to discovery or disclosure pursuant to
         legal process), to any other party other than the directors, officers,
         and employees of a party or a party's agents including their respective
         attorneys, consultants, brokers, lenders, insurance carriers or bona
         fide

                                  Page 11 of 13
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         prospective purchasers who have specifically agreed in writing to
         nondisclosure of the terms and conditions hereof. Any disclosure hereof
         required by legal process shall only be made after providing the
         non-disclosing party with notice thereof in order to permit the
         non-disclosing party to seek an appropriate protective order or
         exemption. Violation by a party or its agents of the foregoing
         provisions shall entitle the non-disclosing party, at its option, to
         obtain injunctive relief without a showing of irreparable harm or
         injury and without bond.

         (C)      Survival of Confidentiality The provisions of this Section 20
         will be effective as of the date of this Agreement and remain in full
         force and effect for a period which will be the longer of (i) one (1)
         year following the date of this Agreement, or (ii) one (1) year from
         the termination or expiration of all Services hereunder.

21.      SUCCESSORS AND ASSIGNMENT. This Agreement shall be binding upon and
inure to the benefit of the parties hereto and their respective successors or
assigns, provided, however, that Customer shall not assign or transfer its
rights or obligations under this Agreement without the prior written consent of
MCI WorldCom, which consent shall not be unreasonably withheld or delayed, and
further provided that any assignment or transfer without such consent shall be
void.

22.      GENERAL.

         (A)      Survival of Terms The terms and provisions contained in this
         Agreement that by their sense and context are intended to survive the
         performance thereof by the parties hereto shall so survive the
         completion of performance and termination of this Agreement, including,
         without limitation, provisions for indemnification and the making of
         any and all payments due hereunder.

         (B)      Headings Descriptive headings in this Agreement are for
         convenience only and shall not affect the construction of this
         Agreement.

         (C)      Industry Terms Words having well-known technical or trade
         meanings shall be so construed, and all listings of items shall not be
         taken to be exclusive, but shall include other items, whether similar
         or dissimilar to those listed, as the context reasonably requires.

         (D)      Rule of Construction No rule of construction requiring
         interpretation against the drafting party hereof shall apply in the
         interpretation of this Agreement.

23.      ENTIRE AGREEMENT. This Agreement consists of (i) all the terms and
conditions contained herein, an (ii) all documents incorporated herein
specifically by reference. This Agreement constitutes the complete and exclusive
statement of the understandings between the parties and supersedes all prior and
contemporaneous proposals and agreements (oral or written) between the parties
relating to the Switched Services provided hereunder. No subsequent agreement
between the parties concerning the Switched Services (including further
Attachments) and signed by Customer and MCI WorldCom.

                                  Page 12 of 13
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         IN WITNESS WHEREOF, the parties have executed this Telecommunications
Services (Switched Services) as of the dates set forth below which Agreement
will be effective as described in the PET attached hereto.

VALOR TELECOMMUNICATIONS                          MCI WORLDCOM NETWORK
ENTERPRISES, L.L.C.                               SERVICES, INC.

By: /s/ Michael A. Page                           By: James Foran
    ------------------------------                    --------------------------
    (Signature)                                       (Signature)

    Michael A. Page                                   James Foran
    ------------------------------                    --------------------------
    (Print Name)                                      (Print Name)

    Vice President                                    Regional Sales Director
    ------------------------------                    --------------------------
    (Title)                                           (Title)

    9/30/00                                           10/10/00
    ------------------------------                    --------------------------
    (Date)                                            (Date)

                                  Page 13 of 13
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<PAGE>

                       MCI WORLDCOM NETWORK SERVICES, INC.

                            PROGRAM ENROLLMENT TERMS
                               (SWITCHED SERVICES)

         These PROGRAM ENROLLMENT TERMS (the "PET") are made by and between MCI
WORLDCOM Network Services, Inc. (successor-in-interest to WorldCom Network
Services, Inc.) ("MCI WORLDCOM") and Valor Telecommunications Enterprises,
L.L.C. ("CUSTOMER") and are a part of their Telecommunications Services
Agreement for Switched Services. Capitalized terms not defined herein shall have
the meaning ascribed to them in the TSA, the applicable Attachment(s) or
applicable tariffs referenced in such Attachment(s). Neither Customer nor MCI
WorldCom shall be obligated with respect to the Switched Services described in
any Attachment, nor any other condition of such Switched Services until Customer
has submitted and MCI WorldCom has accepted a Service Request with respect to
the particular Switched Service.

1.       SERVICE TERM.

         (A)      The Service Term shall commence as of the Effective Date (as
         described below) and shall continue for a period of thirty-six (36)
         months (the "SERVICE TERM"). Upon expiration of the Service Term, the
         Switched Services in question will continue to be provided pursuant to
         the same terms and conditions as are then in effect (including without
         limitation, the applicable rates, discounts and commitments, if any),
         subject to termination by either party upon thirty (30) days prior
         written notice to the other party. MCI WorldCom will not be obligated
         to accept any Service Request under this Agreement if Customer's
         initial Service Request is (i) not submitted by Customer within thirty
         (30) days of the Effective Date of this Agreement, and (ii) not subject
         to a Requested Service Date within ninety (90) days of the Effective
         Date.

         (B)      For purposes of this Agreement, the appropriate Effective Date
         as determined under this Subsection (B) will be filled in the area
         provided above by MCI WorldCom. If Customer has an existing switched
         services agreement with MCI WorldCom or its affiliates, the "EFFECTIVE
         DATE" will be the 1st day of the month following the later of (i)
         twenty-one (21) days after this Agreement has been fully executed by
         both parties, or (ii) Customer has received a satisfactory credit
         review and approval from MCI WorldCom's Credit Department pursuant to
         Subsection 6(A) of the TSA, and all security documentation, if any,
         required by MCI WorldCom has been properly executed and delivered to
         MCI WorldCom (collectively, the "CREDIT REVIEW"). If Customer does not
         have an existing switched services agreement with MCI WorldCom or its
         affiliates, the "EFFECTIVE DATE" will be the date this Agreement has
         been fully executed by both parties and the Credit Review has been
         completed.

2.       MONTHLY REVENUE. For purposes of this Agreement, Customer's "MONTHLY
         REVENUE" will be comprised of (i) the aggregation of all of Customer's
         Switched Services Revenue as such term is described in each of the
         applicable Attachments, PLUS (ii) Customer's Data Revenue (as defined
         herein) from MCI WorldCom. For purposes of

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         this Agreement, Customer's "DATA REVENUE" will be comprised of
         Customer's monthly recurring private line Interexchange Service charges
         (i.e., both Domestic and International) PLUS Customer's Monthly Port
         Charges, Monthly CIR Charges and Monthly NNI Charges, if any, as are
         specifically described in an agreement for Frame Relay Services between
         MCI WorldCom and Customer PLUS Customer's Internet Monthly Recurring
         Charges, if any, as are specifically described in an Attachment for
         DEDICATED INTERNET Service or Attachment for Integrated Internet Access
         Service between MCI WorldCom and Customer (including any charges for
         Internet Service purchased from UUNET Technologies, Inc., an affiliate
         of MCI WorldCom). Customer's Monthly Revenue will not include any pro
         rata charges, access charges, ancillary or special feature charges,
         such as, Authorization codes or CDR Tapes, or any other charges other
         than those identified by the relevant MCI WorldCom invoice as charges
         specifically mentioned in this Section 2.

3.       SERVICE INTERCONNECTIONS.

         (A)      In order to utilize (i) CLASSIC CARRIER TERMINATION Service,
         CLASSIC CARRIER ORIGINATION Service, TRANSCEND(TM) 2000 CARRIER
         TERMINATION Service, TRANSCEND(TM) 2000 CARRIER ORIGINATION Service,
         ACCESS BASED BILLING CARRIER TERMINATION Service, ACCESS BASED BILLING
         CARRIER ORIGINATION Service, one or more full time dedicated
         connections between Customer's network and the MCI WorldCom network at
         one or more MCI WorldCom designated locations ("MCI WORLDCOM POP") must
         be established ("CARRIER SERVICE INTERCONNECTION(S)"), (ii) CLASSIC END
         USER DEDICATED ACCESS Service (1+ or TOLL FREE), TRANSCEND(TM) 2000 END
         USER DEDICATED ACCESS Service (1+ or TOLL FREE), or ACCESS BASED
         BILLING END USER DEDICATED ACCESS Service (1+ or TOLL FREE), one or
         more full time dedicated connections between an End User's private
         branch exchange ("PBX") or other customer premise equipment and the MCI
         WorldCom network at one or more MCI WorldCom POP(s) must be established
         ("DEDICATED SERVICE INTERCONNECTION(S)"), and (iii) PRISM I TERMINATION
         Service and ADVANCED TOLL FREE Service, one or more full time dedicated
         connections between Customer's network and the MCI WorldCom network at
         one or more MCI WorldCom POP(s) must be established ("CARRIER PLUS
         SERVICE INTERCONNECTION(S)"). Each Carrier Service interconnection,
         Carrier PLUS Service Interconnection and Dedicated Service
         Interconnection shall be comprised of one or more dedicated access
         circuits, as the case may be. Carrier Service Interconnection(s),
         Carrier PLUS Service Interconnections and Dedicated Service
         Interconnection(s) are collectively referred to as "SERVICE
         INTERCONNECTIONS".

         (B)      The circuit(s) comprising each Service Interconnection to a
         MCI WorldCom POP shall be requested by Customer on the appropriate MCI
         WorldCom Service Request. Each Service Request will describe (among
         other things) the MCI WorldCom POP to which a Service Interconnection
         is to be established, the Requested Service Date therefor, the type and
         quantity of circuits comprising the Service Interconnection and any
         charges and other information relevant thereto, such as, Customer's
         originating or terminating switch location, as the case may be. Such
         additional information may be obtained from

                                  Page 2 of 9
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         Customer or gathered by MCI WorldCom and recorded in Technical
         information Sheets provided by MCI WorldCom.

         (C)      Once ordered, and unless otherwise provided for in this
         Agreement, Service Interconnection(s) or the circuits comprising each
         Service Interconnection may only be canceled by Customer upon not less
         than thirty (30) days prior written notice to MCI WorldCom.

         (D)      With respect to a Carrier Service Interconnection or a Carrier
         PLUS Service Interconnection, Customer shall be solely responsible for
         establishing and maintaining each Carrier Service interconnection or
         Carrier PLUS Service Interconnection over facilities subject to MCI
         WorldCom's approval. With respect to Dedicated Service
         Interconnections, MCI WorldCom will provision and maintain local access
         facilities between the End User location (i.e., PBX) and the MCI
         WorldCom POP, subject to any LEC charges plus other applicable terms
         and charges set forth in MCI WorldCom's applicable tariffs (or the
         applicable tariffs of its affiliates), however, Customer may elect to
         be responsible for establishing each Dedicated Service Interconnection
         over facilities subject to MCI WorldCom's approval. Service
         Interconnections shall be only comprised of DS-1 facilities unless
         otherwise provided for in the Service Request and agreed to in writing
         by MCI WorldCom. If a Service Interconnection is proposed to be made
         via a local exchange carrier, MCI WorldCom will have the authority to
         direct Customer to utilize MCI WorldCom's entrance facilities or local
         serving arrangement ("LSA") with the relevant local telephone operating
         company, and Customer will be subject to a non-discriminatory charge
         therefor from MCI WorldCom. The monthly recurring charge relevant to
         Customer's use of LSA capacity shall be subject to upward adjustment by
         MCI WorldCom from time to time which adjustment, if any, shall not
         exceed the rate that otherwise would be charged for the equivalent
         switched access capacity between the same points by the relevant local
         telephone operating company pursuant to its published charges for the
         type of service in question.

         (E)      If other private line interexchange facilities are necessary
         to establish a Service Interconnection, and such facilities are
         requested from MCI WorldCom, such facilities will be provided on an
         individual case basis.

         (F)      Commencing with the second full calendar month following Start
         of Service for each circuit comprising a Service Interconnection (i.e.,
         Carrier Service Interconnections, Dedicated Service Interconnections
         and Carrier PLUS Interconnections) and thereafter, Customer will
         maintain Switched Services measured usage charges per DS-1 (or DS-1
         equivalent circuit) of not less than an average of $[*****] per
         calendar month/billing period ("MINIMUM MONTHLY USAGE"). In the event
         Customer fails to obtain the required Minimum Monthly Usage for the
         circuits comprising each Service Interconnection, MCI WorldCom will
         charge and Customer will pay the difference between the total combined
         number of DS-1s times the Minimum Monthly Usage (i.e., $[*****]) and
         Customer's total combined Switched Services measured usage charges for
         the circuit(s) comprising the Service Interconnection in question
         ("MINIMUM USAGE CHARGE"). MCI WorldCom CLASSIC CARRIER TERMINATION
         Service, CLASSIC CARRIER ORIGINATION

                                  Page 3 of 9
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         Service and CLASSIC END USER DEDICATED Service (1+ and TOLL FREE)
         minutes carried over the same Service Interconnection, TRANSCEND(TM)
         2000 TERMINATION Service, TRANSCEND(TM) 2000 CARRIER ORIGINATION
         Service and TRANSCEND(TM) 2000 END USER DEDICATED ACCESS Service (1+
         and TOLL FREE) minutes carried over the same Service Interconnection,
         ACCESS BASED BILLING 2000 CARRIER TERMINATION Service, ACCESS BASED
         CARRIER ORIGINATION Service and ACCESS BASED BILLING END USER DEDICATED
         Service (1+ and TOLL FREE) carried over the same Service
         Interconnection, or PRISM I TERMINATION Service and ADVANCED TOLL FREE
         Service minutes carried over the same Service Interconnection, shall be
         included in determining if Customer has met the Minimum Monthly Usage
         requirement described herein.

                           Example: Assume Customer's actual Switched Services
                           measured usage charges for 2 DS-1s comprising a
                           Carrier Service Interconnection at MCI WorldCom POP A
                           is $[*****], Customer's actual Switched Services
                           measured usage charges for 2 DS-1s comprising a
                           Carrier Service Interconnection at MCI WorldCom POP B
                           is $[*****], and Customer's End Users actual Switched
                           Services measured usage charges for 1 DS-1 comprising
                           a Dedicated Service Interconnection at MCI WorldCom
                           POP C is $[*****]. Customer would not be subject to a
                           Minimum Usage Charge since Customer's actual Minimum
                           Monthly Usage is $[*****] which exceeds Customer's
                           Minimum Monthly Usage of $[*****] [*****].

         (G)      DS-1 circuits comprising all Service Interconnections will be
         subject to a nonrecurring $[*****] per DS-1 switch port installation
         charge (provided the maximum charge hereunder will be $[*****] for up
         to 28 DS-1s ordered at the same time), and DS-3 circuits comprising all
         Service Interconnections will be subject to a nonrecurring per DS-3
         switch port installation charge as determined on an individual case
         basis.

4.       APPLICATION OF DISCOUNTS:

         (A)      With respect to Classic, and ACCESS BASED BILLING products and
         services, after determining Customer's applicable Discount under the
         appropriate Attachment(s), the applicable Discount will only be applied
         to Customer's Interstate Switched Services Revenue (including Alaska,
         Hawaii, the United States Virgin Islands, Puerto Rico, Guam and the
         Northern Marianas Islands unless otherwise noted in an Attachment and
         including 1+ and Toll Free usage unless otherwise noted in an
         Attachment). With respect to TRANSCEND(TM) 2000 products and services,
         after determining Customer's applicable Discount under the appropriate
         Attachment(s), the applicable Discount will only be applied to
         Customer's Domestic Transport Charges and Customer's Extended Transport
         Charges to/from Extended Locations unless otherwise noted in an
         Attachment. With respect to PRISM I TERMINATION Service and ADVANCED
         TOLL FREE Service, after determining Customer's applicable Discount
         under the appropriate Attachment, the applicable Discount will only be
         applied to Customer's Interstate Switched Services Revenue unless
         otherwise noted in the applicable Attachment.

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         (B)      During the Service Term, with respect to Classic,
         TRANSCEND(TM) 2000 and ACCESS BASED BILLING products and services,
         accumulated credits derived from the applicable Discounts will be
         applied in arrears commencing with the first day of the month following
         the Effective Date, that is, the Discount will be applied to Customer's
         measured usage charges for the preceding month (the "DISCOUNT PERIOD").
         The initial Discount Period shall include any partial calendar month
         following Start of Service, or such other time basis as may be mutually
         determined by the parties. With respect to Classic, TRANSCEND(TM) 2000
         and ACCESS BASED BILLING products and services, each Discount will
         result in the application of a credit obtained during the Discount
         Period to the MCI WorldCom invoice to Customer relevant to the billed
         measured Switched Service for the calendar month next following the
         completion of each Discount Period, provided Customer has paid
         undisputed charges (including any late fees, if applicable) for that
         month and has not otherwise been subject to a Suspension Notice in
         accordance with the Agreement. Failure of Customer to comply with the
         foregoing provision shall entitle MCI WorldCom to withhold any credit
         due Customer for the Discount Period in question until such charges
         (including late fees) have been paid in full.

         (C)      With respect to all other products and services (not covered
         by Subsection (B) above), each Discount, if applicable, will result in
         the application of a credit obtained during the Discount Period to the
         MCI WorldCom invoice to Customer relevant to the billed measured
         Switched Service for the calendar month immediately following the
         completion of each Discount Period, provided Customer has paid
         undisputed charges (including any late fees, if applicable) for that
         month and has not otherwise been subject to a Suspension Notice in
         accordance with the Agreement. Failure of Customer to comply with the
         foregoing provision shall entitle MCI WorldCom to withhold any credit
         due Customer for the Discount Period in question until such charges
         (including late fees) have been paid in full.

5.       CUSTOMER'S MINIMUM REVENUE COMMITMENTS:

         (A)      Commencing with the earlier of (i) the first day of the
         thirteenth (13th) billing period following the Effective Date (as
         determined under Section 1 above) or (ii) the first day of the month
         following Customer's obtainment of Monthly Revenue of at least $[*****]
         from MCI WorldCom for two (2) successive billing periods, and
         continuing through the end of the Service Term (including any
         extensions thereto) (the "COMMITMENT PERIOD"), Customer agrees to
         maintain, on a take-or-pay basis, Monthly Revenue (as defined in
         Section 2 above) of at least $[*****] ("CUSTOMER'S MINIMUM REVENUE
         COMMITMENT"). Further, commencing with the first day of the Commitment
         Period (as described above) and continuing through the end of the
         Service Term (the "TOTAL COMMITMENT PERIOD"), Customer agrees to
         maintain, on a take-or-pay basis, cumulative Monthly Revenue of at
         least $[*****] ("CUSTOMER'S TOTAL MINIMUM REVENUE COMMITMENT").

         (B)      Notwithstanding anything to the contrary contained in this
         Agreement, as soon as Customer's cumulative Monthly Revenue from MCI
         WorldCom under the terms of this

                                  Page 5 of 9
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         Agreement and commencing with the first day of the Commitment Period
         (as described in Subsection 5(A) above) are equal to at least Customers
         Total Minimum Revenue Commitment (i.e., $[*****] in the aggregate),
         Customer may elect to terminate Customer's Minimum Revenue Commitment
         described in Subsection 5(A) above by providing MCI WorldCom written
         notice ("CUSTOMER NOTICE"). In such event, commencing with the first
         day of the first full month following at least thirty (30) days after
         MCI WorldCom receives the Customer Notice, Customer's Minimum Revenue
         Commitment shall terminate and will no longer be in force or effect.

6.       DEFICIENCY CHARGE. In the event Customer does not maintain Customers
         Minimum Revenue Commitment in any month during the Commitment Period
         (regardless of whether Customer has commenced using any or all of the
         Switched Services described herein), then for those month(s) only,
         Customer will pay MCI WorldCom, in addition to charges due for Switched
         Services provided to Customer, the difference between Customer's
         Minimum Revenue Commitment and Customer's actual Monthly Revenue (as
         described in Section 2 above) (the "DEFICIENCY CHARGE"). The Deficiency
         Charge will be due at the same time payment is due for Switched
         Services provided to Customer for the billing period in which the
         Deficiency Charge arises, or immediately in an amount equal to
         Customer's Minimum Revenue Commitment for the unexpired portion of the
         Service Term, if MCI WorldCom terminates this Agreement based on
         Customer's default or if Customer terminates this Agreement pursuant to
         Section 2(A) of the TSA. Further, in the event Customer does not
         maintain Customer's Total Minimum Revenue Commitment by the end of the
         Service Term, Customer agrees to pay MCI WorldCom the difference
         between Customer's Total Minimum Revenue Commitment and Customers
         actual cumulative Monthly Revenue (which shall include any Monthly
         Deficiency Charges paid by Customer) during the Total Commitment Period
         (the "TOTAL DEFICIENCY CHARGE"). The Total Deficiency Charge, if any,
         will be due within ten (10) days following the end of the Service Term,
         or immediately in an amount equal to Customer's Total Minimum Revenue
         Commitment less Customer's actual Monthly Revenue through the effective
         date of termination if MCI WorldCom terminates this Agreement based on
         Customer's default. It is agreed that MCI WorldCom's damages in the
         event Customer fails to maintain Customer's Minimum Revenue Commitment
         and Customer's Total Minimum Revenue Commitment shall be difficult or
         impossible to ascertain. The provision for a Deficiency Charge and a
         Total Deficiency Charge in this Section 6 is intended, therefore, to
         establish liquidated damages in the event Customer fails to maintain
         Customer's Minimum Revenue Commitment and Customer's Total Minimum
         Revenue Commitment and is not intended as a penalty.

7.       SPECIAL RATES. Notwithstanding anything to the contrary contained in
         the applicable Attachment(s) attached hereto, commencing as of the
         Effective Date (described in Section 1 above) and continuing through
         the end of the Service Term, with respect to CLASSIC SWITCHLESS 1+
         Service, CLASSIC SWITCHLESS TOLL FREE Service, and CALLING CARD
         Service, Customer will receive the special rates (the "SPECIAL RATES")
         shown in Subparts (i) through (iii) below. The Special Rates will not
         be subject to the applicable discount percentage set forth in the
         applicable Attachment(s). All other rates and discounts will be as set
         forth in the applicable Attachment(s).

                                  Page 6 of 9
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                  (i)      CLASSIC SWITCHLESS 1+ Service and CLASSIC SWITCHLESS
         TOLL FREE Service -- Customer's Interstate rate for calls within the 48
         contiguous United States will be $[*****] per minute.

                  (ii)     CLASSIC SWITCHLESS 1+ Service and CLASSIC SWITCHLESS
         TOLL FREE Service -- Customer's Intrastate rate for calls within the
         following states will be the respective rates per minute set forth
         below:

<TABLE>
<CAPTION>
    STATE                          RATE
-------------------------------------------
<S>                              <C>
 ARIZONA                         $[*****]
-------------------------------------------
 ARKANSAS                        $[*****]
-------------------------------------------
 COLORADO                        $[*****]
-------------------------------------------
 KANSAS                          $[*****]
-------------------------------------------
 LOUISIANA                       $[*****]
-------------------------------------------
 MISSISSIPPI                     $[*****]
-------------------------------------------
 MISSOURI                        $[*****]
-------------------------------------------
 NEW MEXICO                      $[*****]
-------------------------------------------
 OKLAHOMA                        $[*****]
-------------------------------------------
 TENNESSEE                       $[*****]
-------------------------------------------
 TEXAS                           $[*****]
-------------------------------------------
</TABLE>

                  (iii)    CALLING CARD Service -- Customer's Interstate rate
         for calls within the 48 contiguous United States will be $[*****] per
         minute.

8.       BILLING DISPUTES. The parties agree to substitute Subsection 5(D) of
         the TSA to read in its entirety as follows:

         (D)      Billing Disputes. Notwithstanding the foregoing, amounts
                  reasonably disputed by Customer (along with late fees
                  attributable to such amounts) shall apply but shall not be due
                  and payable for a period of sixty (60) days following the Due
                  Date therefor, provided Customer (i) pays all undisputed
                  charges on or before the Due Date, (ii) presents a written
                  statement and supporting documentation of any billing
                  discrepancies to MCI WorldCom in reasonable detail on or
                  before the Due Date of the invoice in question, and (iii)
                  negotiates in good faith with MCI WorldCom for the purpose of
                  resolving such dispute within said sixty (60) day period. In
                  such event, both parties in good faith agree to consider
                  alternative methods of dispute resolution such as arbitration,
                  mediation or mini-trial; provided, however, nothing contained
                  herein shall require MCI WorldCom to agree to any method, and
                  further, any method must be mutually agreed to in writing. In
                  the event such dispute is mutually agreed upon and resolved in
                  favor of MCI WorldCom, Customer agrees to pay MCI WorldCom the
                  disputed amounts together with any applicable late fees within
                  ten (10) days of the resolution (the "ALTERNATE DUE DATE"). In
                  the event such dispute is mutually agreed upon and resolved in
                  favor of Customer will receive a credit for the disputed
                  charges in question and the applicable late fees. In the event
                  MCI WorldCom has responded to Customer's dispute in writing
                  and the parties fail to

                                  Page 7 of 9
                                  CONFIDENTIAL

<PAGE>

                  mutually resolve or settle the dispute within such sixty (60)
                  day period (unless MCI WorldCom has agreed in writing to
                  extend such period) all disputed amounts together with late
                  fees shall become due and payable, and this provision shall
                  not be construed to prevent Customer from pursuing any
                  available legal remedies. MCI WorldCom shall not be obligated
                  to consider any Customer notice of billing discrepancies which
                  are received by MCI WorldCom more than sixty (60) days
                  following the Due Date of the invoice in question.

9.       NUMBER PORTABILITY. Upon expiration of this Agreement, MCI WorldCom
         acknowledges that the following toll free number shall be retained by
         Customer under a new RespOrg: 877-958-2567. MCI WorldCom agrees to
         fully cooperate with Customer in the conversion process for such
         number.

10.      CANCELLATION WITHOUT CHARGE; OPERATOR SERVICES. Notwithstanding
         anything to the contrary contained in Subsection 2(C) of the TSA, in
         the event MCI WorldCom is unable to provide OPERATOR Services or any
         similar service to Customer as warranted in Section 8 of the TSA,
         Customer may terminate OPERATOR Services without incurring a
         cancellation charge (other than payment for OPERATOR Services provided
         by MCI WorldCom up through the effective date of cancellation) if
         Customer provides written notification thereof to MCI WorldCom not less
         than thirty (30) days prior to the effective date of cancellation.

11.      ATTACHMENTS. This Agreement consists of the TSA, the PET and the
         following Attachment(s) [CHECK ALL THAT APPLY] and will include any
         additional Attachments agreed to by the parties after the Effective
         Date of this Agreement:

      [X] CLASSIC CARRIER TERMINATION Service (Schedule CL-A), (Schedule CL-B),
          (Schedule CL-C), (Schedule CL-D), (Schedule CL-E), (Schedule CL-F),
          (Schedule CL-G)

      [X] CLASSIC CARRIER ORIGINATION Service (Schedule CL-H), (Schedule CL-I),
          (Schedule CL-J), (Schedule CL-K)

      [X] CLASSIC SWITCHLESS/END USER DEDICATED Service (Schedule CL-L),
          (Schedule CL-M), (Schedule CL-N), (Schedule CL-O), (Schedule CL-P),
          (Schedule CL-Q)

      [X] OPERATOR SERVICES                     [ ] DEBIT CARD Service

      [X] CALLING CARD(TM) Service              [ ] NETWORK CONFERENCING Service

      [ ] UNIVERSAL INTERNATIONAL FREE          [X] INTERNATIONAL TOLL FREE
          PHONE NUMBER Service (UIFN)               SERVICES (ITFS)

      [ ] LOCAL SERVICE                         [X] CIC TRANSLATION Service

                                  Page 8 of 9
                                  CONFIDENTIAL

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         IN WITNESS WHEREOF, the parties have executed these Switched Services
Program Enrollment Terms.

MCI WORLDCOM NETWORK                       VALOR TELECOMMUNICATIONS
SERVICES, INC.                             ENTERPRISES, L.L.C.

By: /s/ Michael A. Page                    By: /s/ James Foran
    -----------------------------------        ---------------------------------
                (Signature)                                (Signature)

Michael A. Page                            James Foran
---------------------------------------    -------------------------------------
               (Print Name)                               (Print Name)

Vice President                             Regional Sales Director
---------------------------------------    -------------------------------------
                 (Title)                                    (Title)

9/30/00                                    10/10/00
---------------------------------------    -------------------------------------
                 (Date)                                     (Date)

                                  Page 9 of 9
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<PAGE>

                       MCI WORLDCOM NETWORK SERVICES, INC.

          ATTACHMENT FOR CLASSIC SWITCHLESS/END USER DEDICATED SERVICES

         This ATTACHMENT FOR CLASSIC SWITCHLESS/END USER DEDICATED SERVICES is
made by and between Valor Telecommunications Enterprises, L.L.C. ("CUSTOMER")
and MCI WORLDCOM Network Services, Inc. ("MCI WORLDCOM") and is a part of their
Telecommunications Services Agreement for Switched Services. Capitalized terms
not defined herein shall have the meaning ascribed to them in the TSA, the PET
or the applicable Attachment(s). NOTE: ANY MODIFICATIONS, ADDITIONS OR DELETIONS
FROM THIS ATTACHMENT WILL NOT BE EFFECTIVE UNLESS SPECIFICALLY SET FORTH IN THE
PET.

         During the Service Term of the Agreement, MCI WorldCom will provide
"CLASSIC SWITCHLESS/END USER DEDICATED SERVICES" which include the following
services:

         (a)      CLASSIC SWITCHLESS 1+ Service which is the origination (via
individual telephone lines) and termination of calls solely over facilities
comprising the MCI WorldCom network, (i) subject to the limitation of
origination and termination locations set forth herein, and (ii) for the charges
and applicable discounts set forth herein.

         (b)      CLASSIC SWITCHLESS TOLL FREE Service which is the origination
(via individual telephone lines) and termination of calls solely over facilities
comprising the MCI WorldCom network, (i) subject to the limitation of
origination and termination locations set forth herein, and (ii) for the charges
and applicable discounts set forth herein.

         (c)      CLASSIC END USER DEDICATED 1+ Service which is the termination
of calls solely over facilities comprising the MCI WorldCom network which
origination is via dedicated access lines, (i) subject to the limitation of
origination and termination locations set forth herein, and (ii) for the charges
and applicable discounts set forth herein.

         (d)      CLASSIC END USER DEDICATED TOLL FREE Service which is the
origination of Toll Free calls by MCI WorldCom solely over facilities comprising
the MCI WorldCom network which termination is via dedicated access lines, (i)
subject to the limitation of origination and termination locations set forth
herein, and (ii) for the charges and applicable discounts set forth herein.

I.       TERMS AND CONDITIONS.

         (A)      FORECASTS: Before Customers initial order for CLASSIC
         SWITCHLESS/END USER DEDICATED Services, Customer shall provide MCI
         WorldCom with a forecast regarding the number of minutes expected to be
         terminated or originated in various LATAs and/or Tandems, so as to
         enable MCI WorldCom to configure optimum network arrangements. IN THE
         EVENT CUSTOMER'S TRAFFIC VOLUMES RESULT IN A LOWER THAN INDUSTRY
         STANDARD COMPLETION RATE OR OTHERWISE ADVERSELY AFFECT THE MCI WORLDCOM
         NETWORK, MCI WORLDCOM RESERVES THE RIGHT TO BLOCK THE SOURCE OF SUCH

                                  Page 1 of 9
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         ADVERSE TRAFFIC AT ANY TIME. Customer will provide MCI WorldCom with
         additional forecasts from time to time upon MCI WorldCom's request
         which shall not be more frequent than once every three (3) months.

         (B)      START OF SERVICE: Start of Service for (i) CLASSIC SWITCHLESS
         1+ Service will be on an ANI by ANI basis concurrently with the
         activation of each ANI to be served, (ii) CLASSIC SWITCHLESS TOLL FREE
         Service will be on a Toll Free Number by Toll Free Number basis
         concurrently with the activation of each Toll Free Number to be served,
         and (iii) CLASSIC END USER DEDICATED 1+ Service and CLASSIC END USER
         DEDICATED TOLL FREE Service will be concurrently with the activation of
         each circuit comprising a Dedicated Service Interconnection (as defined
         in the PET) relevant to such Service.

         (C)      SUBMISSION OF ANIS: After MCI WorldCom's receipt and
         verification of a valid Service Request for CLASSIC SWITCHLESS 1+
         Service or CLASSIC END USER DEDICATED 1 + Service requiring a change in
         the primary interexchange carrier ("PIC"), MCI WorldCom agrees to (i)
         submit the ANI(s) relevant to such Service Requests to the following
         local exchange carriers ("LECS") (with which MCI WorldCom currently has
         electronic interlace capabilities) within ten (10) days: Ameritech,
         Bell Atlantic, BellSouth, Nynex, Pacific Bell, Southwestern Bell, US
         West, GTE and United, and (ii) submit the ANI(s) relevant to such
         Service Requests to those LECs with which MCI WorldCom does not have
         electronic interface capabilities within a reasonable time.

         (D)      LIMITATION OF ORIGINATION AND TERMINATION LOCATIONS:

                  (i)      CLASSIC SWITCHLESS 1+ Service may be originated from
         all equal access exchanges in the 48 contiguous United States (except
         in LATA 921 -- Fishers Island, New York) and Hawaii and terminated to
         any direct dialable location worldwide.

                  (ii)     CLASSIC SWITCHLESS TOLL FREE Service may be
         originated from locations in the 48 contiguous United States, Hawaii,
         Alaska, the US Virgin Islands, Puerto Rico, Guam, the Northern Marianas
         Islands and Canada and terminated to locations in the 48 contiguous
         United States and Canada.

                  (iii)    CLASSIC END USER DEDICATED 1+ Service may be
         originated from any Customer-designated Dedicated Service
         Interconnection and terminated to any direct dialable location
         worldwide.

                  (iv)     CLASSIC END USER DEDICATED TOLL FREE Service may be
         originated from locations in the 48 contiguous United States, Hawaii,
         Alaska, the US Virgin Islands, Puerto Rico, Guam, the Northern Marianas
         Islands and Canada and terminated to any Customer-designated Dedicated
         Service Interconnection in the 48 contiguous United States or Hawaii.

         (E)      BILLING INCREMENTS: All calls (excluding California IntraLATA
         and California intrastate calls and calls to/from International
         Locations, Canada and Mexico) will be

                                  Page 2 of 9
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<PAGE>

         billed in six (6) second increments and subject to a six (6) second
         minimum charge. California IntraLATA and California intrastate calls
         will be billed in six (6) second increments and subject to an eighteen
         (18) second minimum charge. Calls to/from International Locations,
         Canada and Mexico will be billed in six (6) second increments and
         subject to a thirty (30) second minimum charge. All calls will be
         billed utilizing Hardware Answer Supervision where available commencing
         with Customer's switch wink or answer back, if Customer is found to be
         non-compliant in passing back appropriate answer supervision, i.e.,
         answer back, MCI WorldCom reserves the right to suspend CLASSIC
         SWITCHLESS TOLL FREE Service and/or CLASSIC END USER DEDICATED TOLL
         FREE Service or deny requests by Customer for additional Service until
         appropriate compliance is established.

         (F)      RBOC ORIGINATION/TERMINATION REQUIREMENT: During each calendar
         month or pro rata portion thereof, Customer agrees to maintain at least
         80% of Customer's Total Classic Minutes (as defined herein) for
         origination or termination in a Tandem owned and operated by a Regional
         Bell Operating Company and subject to such RBOC's tariffed access
         charges. MCI WorldCom shall have the right to apply a $[*****] per
         minute surcharge to the number of minutes by which Non-RBOC
         Originations and/or Terminations exceed 20% of Customers Total Classic
         Minutes. For purposes of this Subsection (F), "CUSTOMER'S TOTAL CLASSIC
         MINUTES" will include all of Customers CLASSIC CARRIER TERMINATION
         Service minutes, Customer's CLASSIC CARRIER ORIGINATION Service
         minutes, and Customers CLASSIC END USER DEDICATED (1+ and TOLL FREE)
         Service minutes.

         (G)      PRESUBSCRIBED INTEREXCHANGE CARRIER CHARGE (PICC): MCI
         WorldCom will charge Customer for any LEC-assessed presubscribed
         interexchange carrier charge ("PICC CHARGE") which PICC Charge will be
         reasonably determined by MCI WorldCom as of a date certain each month
         (the "PICC CHARGE DETERMINATION DATE"). Customers PICC Charge will be
         determined as of the PICC Charge Determination Date and will be based
         on the same criteria for which MCI WorldCom is assessed such charge by
         the LEC (e.g., number and type of Customers End Users (i.e.,
         residential or business) as well as the type of line associated with
         each such End User (i.e., single line, secondary line or multi-line).
         This Subparagraph (G) will be deemed to include any other similar
         additional charges assessed by a LEC during the Service Term of this
         Agreement (i.e., charges for which MCI WorldCom is not currently being
         assessed).

         (H)      TOLL FREE NUMBERS:

                  (1)      TOLL FREE numbers will be issued to Customer (i.e.,
                  issuance equates to activation or reservation, whichever
                  occurs first) on a random basis. Customer requests for
                  specific numbers will be considered by MCI WorldCom, and if
                  provided, will be subject to additional charges as set forth
                  below and MCI WorldCom's then current reservation policy which
                  shall also apply to any randomly selected and reserved TOLL
                  FREE number. At any time preceding three (3) months from the
                  scheduled expiration of the Service Term, Customer may only
                  reserve TOLL FREE numbers in an amount equal to the greater of
                  (i)

                                  Page 3 of 9
                                  CONFIDENTIAL

<PAGE>

                  50, or (ii) fifteen percent (15%) of the total number of TOLL
                  FREE numbers activated by MCI WorldCom for Customer. Customer
                  requests for TOLL FREE numbers inconsistent with the above
                  stated conditions may be considered by MCI WorldCom on an
                  individual case basis. TOLL FREE numbers reserved for Customer
                  will be activated upon Customers request.

                  (2)      Customer Request for Specific Numbers - $[*****] per
                  individual TOLL FREE number reserved or assigned.

                  (3)      Customer specifically agrees that regardless of the
                  method in which a TOLL FREE number is reserved for or
                  otherwise assigned to Customer, that Customer will not seek
                  any remedy from MCI WorldCom including, but not limited to,
                  any remedy based on a theory of detrimental reliance or
                  otherwise that such TOLL FREE number(s) are found not to be
                  available for Customers use until such TOLL FREE number is put
                  in service for the benefit of Customer, and that such TOLL
                  FREE number(s) shall not be sold, bartered, brokered or
                  otherwise released by Customer for a fee ("TOLL FREE NUMBER
                  TRAFFICKING"). Any attempt by Customer to engage in TOLL FREE
                  Number Trafficking shall be grounds for reclamation by MCI
                  WorldCom for reassignment of the TOLL FREE number(s) reserved
                  for or assigned to Customer.

         (I)      TOLL FREE IDENTIFICATION SERVICES AND ROUTING OPTIONS: The
         following Toll Free identification services and routing options are
         available from MCI WorldCom:

                  IDENTIFICATION SERVICES:

                  i.       Dialed Number Identification Service (DNIS) -
                  identification of specific TOLL FREE number dialed.

                  ii.      Real-Time ANI - receipt of telephone number of
                  calling party.

                  TOLL FREE ROUTING OPTIONS:

                  i.       Message Referral - recording (up to six (6) months)
                  that informs callers that the TOLL FREE number has been
                  disconnected or refers callers to new number.

                  ii.      Call Area Selection - selection or blockage of
                  locations from which TOLL FREE numbers can be received (i.e.,
                  State, NPA, LATA or NXX level).

                  iii.     Call Distributor Routing [END USER DEDICATED TOLL
                  FREE Service only] - distribution of TOLL FREE traffic evenly
                  over dedicated access lines in a trunk group (e.g., ascending,
                  descending, most idle, least idle).

                  iv.      Route Completion (Overflow) [END USER DEDICATED TOLL
                  FREE Service only] - overflow of TOLL FREE dedicated access
                  traffic only up to five

                                  Page 4 of 9
                                  CONFIDENTIAL

<PAGE>

                  (5) pre-defined alternate routing groups (e.g., dedicated
                  access, WATs access lines or switched access lines).

                  v.       Geographic Routing - termination of calls to a single
                  TOLL FREE number from two or more originating routing groups
                  to different locations.

                  vi.      Time-of-Day Routing - routing of calls to single TOLL
                  FREE number based on time of day (up to forty-eight (48) time
                  slots of 15-minute increments in a 24-hour period).

                  vii.     Day-of-Week Routing - routing of calls to single TOLL
                  FREE number based on each day of the week.

                  viii.    Day-of-Year Routing - routing of calls to single TOLL
                  FREE number based on up to fifteen (15) customer-specified
                  holidays.

                  ix.      Percent Allocation Routing - routing of calls for
                  each originating routing group to two (2) or more terminating
                  locations based on customer-specified percentage.

                  Customer will receive the Identification Services described
                  above at no charge. The minutes of use rates for Toll Free
                  Routing Options described above (in addition to the Toll Free
                  Routing Option Feature Charges described below) will be the
                  same rates for CLASSIC SWITCHLESS TOLL FREE Service or CLASSIC
                  END USER DEDICATED TOLL FREE Service described herein
                  excluding Route Completion (Overflow). The Toll Free Routing
                  Option Feature Charges are as follows:

                  Installation Charge: $[*****] per feature; maximum of $[*****]
                  per TOLL FREE number.

                  Change Order Charge: $[*****] per feature; maximum of $[*****]
                  per TOLL FREE number.

                  Monthly Recurring Charge: $[*****] per feature; maximum of
                  $[*****] per TOLL FREE number.

                  Expedite Charge: $[*****] (i.e., outside normal interval time
                  of four (4) business days).

                  Note: More than ten (10) points of termination for a single
                  feature will be treated as two (2) features. Further, every
                  additional ten (10) points of termination will be treated as a
                  separate feature.

                  National Toll Free Listing: $[*****] per month per TOLL FREE
                  number (allows up to four (4) different listings per TOLL FREE
                  number in the National Toll Free Directory). [This charge is
                  not subject to any maximum amount per account.]

                  Payphone Blocking: $[*****] per month per account (allows
                  payphone-originated TOLL FREE calls with the payphone
                  identifier digits 27, 29 and 70 to be blocked;

                                  Page 5 of 9
                                  CONFIDENTIAL

<PAGE>

                  Installation charge: $[*****] per account; charges described
                  herein for payphone blocking do not contribute to other
                  feature charge maximums.

         (J)      RESPORG SERVICES: Responsible Organization Services (relevant
         to TOLL FREE Numbers) if provided by MCI WorldCom will be provided by
         MCI WorldCom pursuant to MCI WorldCom's applicable tariffs (or the
         applicable tariffs of its affiliates).

         (K)      PAYPHONE SURCHARGE: In the event MCI WorldCom is required to
         compensate payphone service providers (PSPs) for toll-free or access
         code calls which originate from payphones (including without
         limitation, any Order adopted by the FCC) ("PAYPHONE SURCHARGE"), MCI
         WorldCom will charge and Customer agrees to pay MCI WorldCom the amount
         of the Payphone Surcharge which is required to be paid by MCI WorldCom.
         Customer acknowledges that MCI WorldCom currently compensates PSPs for
         the following payphone-identifier digits: 07, 27, 29 and 70. MCI
         WorldCom reserves the right to modify the list of payphone-identifier
         digits as it deems necessary to comply with applicable law and
         regulations.

II.      CLASSIC SWITCHLESS/END USER DEDICATED SERVICE CHARGES.

         (A)      For purposes of this Attachment, Customer's "SWITCHED SERVICES
         REVENUE" will be comprised of (I) Customer's gross (i.e., prior to the
         application of discounts) measured and per call Switched Service
         charges described in Subsections (B) through (F) below (i.e., Directory
         Assistance and both domestic and International), and (ii) the PICC
         Charge, if applicable, described in Subsection I.(G) above.

         (B)      Rates (per minute except for DIRECTORY ASSISTANCE which is per
         call).

                  (i)      CLASSIC SWITCHLESS 1+ Service

<TABLE>
<CAPTION>
                            SERVICE                                            RATE
------------------------------------------------------------------------------------------
<S>                                                                      <C>
INTERSTATE (within the 48 contiguous United States)                      SEE Schedule CL-D
------------------------------------------------------------------------------------------
INTERSTATE EXTENDED DOMESTIC Locations (from the 48 contiguous           SEE Schedule CL-E
United States to Extended Locations and Hawaii to the 48
contiguous United States and Extended Locations)
------------------------------------------------------------------------------------------
INTRASTATE (within the 48 contiguous United States)*                     SEE Schedule CL-F
------------------------------------------------------------------------------------------
CANADA (from the 48 contiguous United States and Hawaii to               SEE Schedule CL-G
Canada)*
------------------------------------------------------------------------------------------
MEXICO (from the 48 contiguous United States and Hawaii to               SEE Schedule CL-H
Mexico)*
------------------------------------------------------------------------------------------
INTERNATIONAL (from the 48 contiguous United States and Hawaii to        SEE Schedule CL-C
international Locations)*
------------------------------------------------------------------------------------------
</TABLE>

* NOT SUBJECT TO DISCOUNT.

                  (ii)     CLASSIC SWITCHLESS TOLL FREE Service

<TABLE>
<CAPTION>
                            SERVICE                                         RATE
---------------------------------------------------------------------------------------
<S>                                                                   <C>
INTERSTATE (within the 48 contiguous United States)                   SEE Schedule CL-D
---------------------------------------------------------------------------------------
INTERSTATE EXTENDED DOMESTIC Locations (from Extended Locations       SEE Schedule CL-E
to the 48 contiguous United States)
---------------------------------------------------------------------------------------
</TABLE>

                                  Page 6 of 9
                                  CONFIDENTIAL

<PAGE>

<TABLE>
<S>                                                                   <C>
INTRASTATE (within the 48 contiguous United States)*                  SEE Schedule CL-F
---------------------------------------------------------------------------------------
CANADA (from Canada to the 48 contiguous United States, the 48        SEE Schedule CL-G
contiguous United States to Canada and Extended Locations to
Canada)*
---------------------------------------------------------------------------------------
</TABLE>

* NOT SUBJECT TO DISCOUNT.

                  (iii)    CLASSIC END USER DEDICATED 1+ Service

<TABLE>
<CAPTION>
                            SERVICE                                         RATE
---------------------------------------------------------------------------------------
<S>                                                                   <C>
INTERSTATE (within the 48 contiguous United States; rates based       SEE Schedule CL-D
on location of terminating LATA)
---------------------------------------------------------------------------------------
INTERSTATE EXTENDED DOMESTIC Locations (from the 48 contiguous        SEE Schedule CL-E
United States to Extended Locations)
---------------------------------------------------------------------------------------
INTRASTATE (within the 48 contiguous United States)*                  SEE Schedule CL-F
---------------------------------------------------------------------------------------
CANADA (from the 48 contiguous United States to Canada)*              SEE Schedule CL-G
---------------------------------------------------------------------------------------
MEXICO (from the 48 contiguous United States to Mexico)*              SEE Schedule CL-H
---------------------------------------------------------------------------------------
INTERNATIONAL (from the 48 contiguous United States to                SEE Schedule CL-I
International Locations)*
---------------------------------------------------------------------------------------
</TABLE>

* NOT SUBJECT TO DISCOUNT.

                  (iv)     CLASSIC END USER DEDICATED TOLL FREE Service

<TABLE>
<CAPTION>
                            SERVICE                                         RATE
---------------------------------------------------------------------------------------
<S>                                                                   <C>
INTERSTATE (within the 48 contiguous United States; rates based       SEE Schedule CL-D
on location of originating LATA)
---------------------------------------------------------------------------------------
INTERSTATE EXTENDED DOMESTIC Locations (from Extended Locations       SEE Schedule CL-E
to the 48 contiguous United States)
---------------------------------------------------------------------------------------
INTRASTATE (within the 48 contiguous United States)*                  SEE Schedule CL-F
---------------------------------------------------------------------------------------
CANADA (from Canada to the 48 contiguous United States)*              SEE Schedule CL-G
---------------------------------------------------------------------------------------
</TABLE>

* NOT SUBJECT TO DISCOUNT.

                  (v)      CLASSIC DIRECTORY ASSISTANCE: SEE Schedule CL-I [NOT
                           SUBJECT TO DISCOUNT].

III.     DISCOUNTS.

         Commencing with the Effective Date and continuing through the end of
         the Service Term (including any applicable extensions thereto),
         Customers discount percentage for CLASSIC SWITCHLESS/END USER DEDICATED
         Services (the "DISCOUNT") will be determined under the Discount
         Schedule shown below based on Customer's actual Monthly Revenue for
         such month. Throughout the Service Term, Customer will automatically
         receive the next higher (or lower) Discount when Customer's eligible
         Monthly Revenue (as defined in the PET) reaches the next higher level
         (or falls to the next lower level).

                                  Page 7 of 9
                                  CONFIDENTIAL

<PAGE>

<TABLE>
<CAPTION>
  MONTHLY REVENUE       DISCOUNT
-------------------     --------
<S>                     <C>
$[*****] - $[*****]       0.00%
$[*****] - $[*****]       2.50%
$[*****] - $[*****]       5.00%
$[*****] - $[*****]       7.50%
      $[*****]           10.00%
</TABLE>

IV.      CDR MEDIA.

         MCI WorldCom will provide Call Detail Records (CDRs) for MCI WorldCom's
         Switched Services in machine readable form in one of several magnetic
         tape formats (selected by Customer on Customer's Service Request) ("CDR
         MEDIA"). CDR Media provided hereunder (i) monthly is provided at no
         charge, (ii) weekly is subject to a recurring monthly charge of $150,
         and (iii) daily is subject to the applicable non-recurring Installation
         Charge as described below (plus all leased-line and equipment costs
         necessary to implement Daily CDR Media which will be determined on an
         individual case basis depending on Customers specific configuration).

<TABLE>
<CAPTION>
                                                TOTAL CONTRACT      NON-RECURRING
                     TYPE                           VALUE        INSTALLATION CHARGE
------------------------------------------------------------------------------------
<S>                                             <C>              <C>
Daily CDR Media-Customer provided hardware and   <$1,000,000            $[*****]
software                                          $1,000,000+           $[*****]
------------------------------------------------------------------------------------
Daily CDR Media-PC Solution                      <$1,000,000            $[*****]
                                                  $1,000,000+           $[*****]
------------------------------------------------------------------------------------
Sub-Daily CDR Media-Customer provided hardware   <$1,000,000            $[*****]
and software                                      $1,000,000+           $[*****]
------------------------------------------------------------------------------------
Sub-Daily CDR Media-PC Solution                  <$1,000,000            $[*****]
                                                  $1,000,000+           $[*****]
------------------------------------------------------------------------------------
</TABLE>

                                  Page 8 of 9
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<PAGE>

         IN WITNESS WHEREOF, authorized parties on behalf of their respective
entities have initialed this Attachment for CLASSIC SWITCHLESS/END USER
DEDICATED Services as of the date shown below.

VALOR TELECOMMUNICATIONS                   MCI WORLDCOM NETWORK
ENTERPRISES, L.L.C.                        SERVICES, INC.

Customer Initials MP                       MCI WorldCom's Initials JF

Date: 9/30/00                              Date: 10/10/00

                                  Page 9 of 9
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<PAGE>

                       MCI WORLDCOM NETWORK SERVICES, INC.

               ATTACHMENT FOR CLASSIC CARRIER ORIGINATION SERVICE

         This ATTACHMENT FOR CLASSIC CARRIER ORIGINATION SERVICE is made by and
between Valor Telecommunications Enterprises, L.L.C. ("CUSTOMER") and MCI
WORLDCOM Network Services, Inc. ("MCI WORLDCOM") and is a part of their
Telecommunications Services Agreement for Switched Services. Capitalized terms
not defined herein shall have the meaning ascribed to them in the TSA, the PET
or the applicable Attachment(s). NOTE: ANY MODIFICATIONS, ADDITIONS OR DELETIONS
FROM THIS ATTACHMENT WILL NOT BE EFFECTIVE UNLESS SPECIFICALLY SET FORTH IN THE
PET.

         During the Service Term of the Agreement, MCI WorldCom will provide
"CLASSIC CARRIER ORIGINATION SERVICE" which is MCI WorldCom's origination of
Toll Free calls by MCI WorldCom and the termination of such calls to Customers
Service Interconnection(s), (i) subject to the limitation of origination and
termination locations set forth herein, and (ii) for the charges and applicable
discounts set forth herein.

I.       TERMS AND CONDITIONS.

         (A)      FORECASTS: Before Customers Initial order for CLASSIC CARRIER
         ORIGINATION Services, Customer shall provide MCI WorldCom with a
         forecast regarding the number of minutes expected to be originated in
         various LATAs and/or Tandems, so as to enable MCI WorldCom to configure
         optimum network arrangements. IN THE EVENT CUSTOMERS TRAFFIC VOLUMES
         RESULT IN A LOWER THAN INDUSTRY STANDARD COMPLETION RATE OR OTHERWISE
         ADVERSELY AFFECT THE MCI WORLDCOM NETWORK, MCI WORLDCOM RESERVES THE
         RIGHT TO BLOCK THE SOURCE OF SUCH ADVERSE TRAFFIC AT ANY TIME. Customer
         will provide MCI WorldCom with additional forecasts from time to time
         upon MCI WorldCom's request which shall not be more frequent than once
         every three (3) months.

         (B)      START OF SERVICE: Start of Service for CLASSIC CARRIER
         ORIGINATION Service will be concurrent with the activation of each
         circuit comprising a Carrier Service Interconnection (as defined in the
         PET) relevant to CLASSIC CARRIER ORIGINATION Service.

         (C)      LIMITATION OF ORIGINATION AND TERMINATION LOCATIONS: CLASSIC
         CARRIER ORIGINATION Service may be originated from locations in the 48
         contiguous United States, Hawaii, Alaska, the US Virgin Islands, Puerto
         Rico, Guam, the Northern Marianas Islands and Canada and terminated to
         any Customer-designated Carrier Service Interconnection in the 48
         contiguous United States.

         (D)      BILLING INCREMENTS: All calls (excluding California IntraLATA
         and California intrastate calls and calls to/from Canada) will be
         billed in six (6) second increments and subject to a six (6) second
         minimum charge. California IntraLATA and California intrastate calls
         will be billed in six (6) second increments and subject to an eighteen
         (18) second minimum charge, and (ii) calls to/from Canada will be
         billed in six (6) second increments and subject to a thirty (30) second
         minimum charge. All calls will be billed

                                  Page 1 of 6
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<PAGE>

         utilizing Hardware Answer Supervision where available commencing with
         Customer's switch wink or answer back. If Customer is found to be
         non-compliant in passing back appropriate answer supervision, i.e.,
         answer back, MCI WorldCom reserves the right to suspend CLASSIC CARRIER
         ORIGINATION Service or deny requests by Customer for additional Service
         until appropriate compliance is established.

         (E)      RBOC ORIGINATION/TERMINATION REQUIREMENT: During each calendar
         month or pro rata portion thereof, Customer agrees to maintain at least
         [*****]% of Customer's Total Classic Minutes (as defined herein) for
         origination or termination (whichever is applicable) in a Tandem owned
         and operated by a Regional Bell Operating Company and subject to such
         RBOC's tariffed access charges. MCI WorldCom shall have the right to
         apply a $[*****] per minute surcharge to the number of minutes by which
         Non-RBOC Originations and/or Terminations exceed [*****]% of Customer's
         Total Classic Minutes. For purposes of this Subsection (E), "CUSTOMER'S
         TOTAL CLASSIC MINUTES" will include all of Customer's CLASSIC CARRIER
         TERMINATION Service minutes, Customer's CLASSIC CARRIER ORIGINATION
         Service minutes, and Customer's CLASSIC END USER DEDICATED (1+ and TOLL
         FREE) Service minutes.

         (F)      PIU CERTIFICATION: With respect to a Carrier Service
         Interconnection as defined in the PET, absent the automatic number
         identification ("ANI") of the calling party, Customer shall provide MCI
         WorldCom with a written certification (the "CERTIFICATION") of the
         percentage of interstate (including international) and intrastate
         minutes of use relevant to the minutes of traffic to be terminated in
         the same state in which the MCI WorldCom POP is located to which the
         Carrier Service Interconnection is made. This Certification shall be
         provided by Customer prior to Start of Service for any Carrier Service
         Interconnection and may be modified from time to time by Customer and
         subject to recertification upon the request of MCI WorldCom which
         requests shall not be made unilaterally by MCI WorldCom more than once
         each calendar quarter. Any such modification(s) or Certification(s)
         shall be effective as of the first day of any calendar month and
         following at least forty-five (45) days notice from Customer. In the
         event Customer fails to make such Certification, the relevant minutes
         of use will be deemed to be subject to the Intrastate Rates described
         herein, in the event MCI WorldCom or any other third party requires an
         audit of MCI WorldCom's interstate/intrastate minutes of traffic,
         Customer agrees to cooperate in such audit at its expense and make its
         call detail records, billing systems and other necessary information
         reasonably available to MCI WorldCom or any third party solely for the
         purpose of verifying Customers interstate/intrastate minutes of
         traffic. Customer agrees to indemnify MCI WorldCom for any liability
         MCI WorldCom incurs in the event Customer's Certification is different
         than that determined by the audit.

         (G)      PAYPHONE SURCHARGE: in the event MCI WorldCom is required to
         compensate payphone service providers (PSPs) for toll-free or access
         code calls which originate from payphones (including without
         limitation, any Order adopted by the FCC) ("PAYPHONE SURCHARGE"), MCI
         WorldCom will charge and Customer agrees to pay MCI WorldCom the amount
         of the Payphone Surcharge which is required to be paid by MCI WorldCom.
         Customer acknowledges that MCI WorldCom currently compensates PSPs for
         the

                                  Page 2 of 6
                                  CONFIDENTIAL

<PAGE>

         following payphone-identifier digits: 07, 27, 29 and 70. MCI WorldCom
         reserves the right to modify the list of payphone-identifier digits as
         it deems necessary to comply with applicable law and regulations.

         (H)      TOLL FREE NUMBERS:

                  (1)      TOLL FREE numbers will be issued to Customer (i.e.,
                  issuance equates to activation or reservation, whichever
                  occurs first) on a random basis. Customer requests for
                  specific numbers will be considered by MCI WorldCom, and if
                  provided, will be subject to additional charges as set forth
                  below and MCI WorldCom's then current reservation policy which
                  shall also apply to any randomly selected and reserved TOLL
                  FREE number. At any time preceding three (3) months from the
                  scheduled expiration of the Service Term, Customer may only
                  reserve TOLL FREE numbers in an amount equal to the greater of
                  (i) 50, or (ii) fifteen percent (15%) of the total number of
                  TOLL FREE numbers activated by MCI WorldCom for Customer.
                  Customer requests for TOLL FREE numbers inconsistent with the
                  above stated conditions may be considered by MCI WorldCom on
                  an individual case basis. TOLL FREE numbers reserved for
                  Customer will be activated upon Customers request.

                  (2)      Customer Request for Specific Numbers - $[*****] per
                  individual TOLL FREE number reserved or assigned.

                  (3)      Customer specifically agrees that regardless of the
                  method in which a TOLL FREE number is reserved for or
                  otherwise assigned to Customer, that Customer will not seek
                  any remedy from MCI WorldCom including, but not limited to,
                  any remedy based on a theory of detrimental reliance or
                  otherwise that such TOLL FREE number(s) are found not to be
                  available for Customer's use until such TOLL FREE number is
                  put in service for the benefit of Customer, and that such TOLL
                  FREE number(s) shall not be sold, bartered, brokered or
                  otherwise released by Customer for a fee ("TOLL FREE NUMBER
                  TRAFFICKING"). Any attempt by Customer to engage In TOLL FREE
                  Number Trafficking shall be grounds for reclamation by MCI
                  WorldCom for reassignment of the TOLL FREE number(s) reserved
                  for or assigned to Customer.

         (I)      TOLL FREE IDENTIFICATION SERVICES AND ROUTING OPTIONS: The
         following Toll Free identification services and routing options are
         available from MCI WorldCom:

                  IDENTIFICATION SERVICES:

                  i.       Dialed Number Identification Service (DNIS) -
                  identification of specific TOLL FREE number dialed.

                  ii.      Real-Time ANI - receipt of telephone number of
                  calling party.

                                  Page 3 of 6
                                  CONFIDENTIAL

<PAGE>

                  TOLL FREE ROUTING OPTIONS:

                  i.       Message Referral - recording (up to six (6) months)
                  that informs callers that the TOLL FREE number has been
                  disconnected or refers callers to new number.

                  ii.      Call Area Selection - selection or blockage of
                  locations from which TOLL FREE numbers can be received (i.e.,
                  State, NPA, LATA or NXX level).

                  iii.     Call Distributor Routing - distribution of TOLL FREE
                  traffic evenly over dedicated access lines in a trunk group
                  (e.g., ascending, descending, most idle, least idle).

                  iv.      Route Completion (Overflow) - overflow of TOLL FREE
                  dedicated access traffic only to up to five (5) pre-defined
                  alternate routing groups (e.g., dedicated access, WATs access
                  lines or switched access lines).

                  v.       Geographic Routing - termination of calls to a single
                  TOLL FREE number from two or more originating routing groups
                  to different locations.

                  vi.      Time-of-Day Routing - routing of calls to single TOLL
                  FREE number based on time of day (up to forty-eight (48) time
                  slots of 15-minute increments In a 24-hour period).

                  vii.     Day-of-Week Routing - routing of calls to single TOLL
                  FREE number based on each day of the week.

                  viii.    Day-of-Year Routing - routing of calls to single TOLL
                  FREE number based on up to fifteen (15) customer-specified
                  holidays.

                  ix.      Percent Allocation Routing - routing of calls for
                  each originating routing group to two (2) or more terminating
                  locations based on customer-specified percentage.

                  Customer will receive the Identification Services described
                  above at no charge. The minutes of use rates for Toll Free
                  Routing Options described above (in addition to the Toll Free
                  Routing Option Feature Charges described below) will be the
                  same rates for CLASSIC CARRIER ORIGINATION Service described
                  herein excluding Route Completion (Overflow). The Toll Free
                  Routing Option Feature Charges are as follows:

                  Installation Charge: $[*****] per feature; maximum of $[*****]
                  per TOLL FREE number.

                  Change Order Charge: $[*****] per feature; maximum of $[*****]
                  per TOLL FREE number.

                                  Page 4 of 6
                                  CONFIDENTIAL

<PAGE>

                  Monthly Recurring Charge: $[*****] per feature; maximum of
                  $[*****] per TOLL FREE number.

                  Expedite Charge: $[*****] (i.e., outside normal interval time
                  of four (4) business days).

                  Note: More than ten (10) points of termination for a single
                  feature will be treated as two (2) features. Further, every
                  additional ten (10) points of termination will be treated as a
                  separate feature.

                  National Toll Free Listing: $[*****] per month per TOLL FREE
                  number (allows up to four (4) different listings per TOLL FREE
                  number in the National Toll Free Directory). [This charge is
                  not subject to any maximum amount per account.]

                  Payphone Blocking: $[*****] per month per account (allows
                  payphone-originated TOLL FREE calls with the payphone
                  identifier digits 27, 29 and 70 to be blocked; Installation
                  charge: $[*****] per account; charges described herein for
                  payphone blocking do not contribute to other feature charge
                  maximums.

         (J)      RESPORG SERVICES: Responsible Organization Services (relevant
         to TOLL FREE Numbers) if provided by MCI WorldCom will be provided by
         MCI WorldCom pursuant to MCI WorldCom's applicable tariffs (or the
         applicable tariffs of its affiliates).

II.      CLASSIC CARRIER ORIGINATION SERVICE CHARGES.

         (A)      For purposes of this Attachment, Customer's "SWITCHED SERVICES
         REVENUE" will be comprised of Customer's gross (i.e., prior to the
         application of discounts) measured and per call Switched Service
         charges described below (i.e., both domestic and International).

         (B)      Rates Per Minute.

<TABLE>
<CAPTION>
                            SERVICE                                         RATE
---------------------------------------------------------------------------------------
<S>                                                                   <C>
INTERSTATE (within the 48 contiguous united States; rates based on    SEE Schedule CL-D
location of originating LATA)
---------------------------------------------------------------------------------------
INTERSTATE EXTENDED DOMESTIC (from Extended Locations to the 48       SEE Schedule CL-E
contiguous United States)
---------------------------------------------------------------------------------------
INTRASTATE (within the 48 contiguous United States)                   SEE Schedule CL-F
---------------------------------------------------------------------------------------
CANADA (from Canada to the 48 contiguous United States)               SEE Schedule CL-G
---------------------------------------------------------------------------------------
</TABLE>

* NOT SUBJECT TO DISCOUNT.

III.     DISCOUNTS.

         Commencing with the Effective Date and continuing through the end of
         the Service Term (including any applicable extensions thereto),
         Customers discount percentage for CLASSIC ORIGINATION Service (the
         "DISCOUNT") will be determined under the Discount Schedule shown below
         based on Customer's actual Monthly Revenue for such

                                  Page 5 of 6
                                  CONFIDENTIAL

<PAGE>

         month. Throughout the Service Term, Customer will automatically receive
         the next higher (or lower) Discount when Customers eligible Monthly
         Revenue (as defined in the PET) reaches the next higher level (or falls
         to the next lower level).

<TABLE>
<CAPTION>
MONTHLY REVENUE                   DISCOUNT
---------------                   --------
<S>                               <C>
$[*****] - $[*****]                 0.00%
$[*****] - $[*****]                 2.50%
$[*****] - $[*****]                 5.00%
$[*****] - $[*****]                 7.50%
      $[*****]                     10.00%
</TABLE>

IV.      CDR MEDIA.

                  MCI WorldCom will provide Call Detail Records (CDRs) for MCI
         WorldCom's Switched Services in machine readable form in one of several
         magnetic tape or optical media formats (selected by Customer on
         Customers Service Request) ("CDR MEDIA"). CDR Media provided hereunder
         (i) monthly is provided at no charge, (ii) weekly is subject to a
         recurring monthly charge of $[*****], and (iii) daily is subject to the
         applicable non-recurring Installation Charge as described below (plus
         all leased-line and equipment costs necessary to implement Daily CDR
         Media which will be determined on an individual case basis depending on
         Customer's specific configuration).

<TABLE>
<CAPTION>
                                                 TOTAL CONTRACT      NON-RECURRING
                        TYPE                         VALUE        INSTALLATION CHARGE
-------------------------------------------------------------------------------------
<S>                                              <C>              <C>
Daily CDR Media-Customer provided hardware and   <$1,000,000              $[*****]
software                                          $1,000,000+             $[*****]
-------------------------------------------------------------------------------------
Daily CDR Media-PC Solution                      <$1,000,000              $[*****]
                                                  $1,000,000+             $[*****]
-------------------------------------------------------------------------------------
Sub-Daily CDR Media-Customer Provided hardware   <$1,000,000              $[*****]
and software                                      $1,000,000+             $[*****]
-------------------------------------------------------------------------------------
Sub-Daily CDR Media-PC Solution                  <$1,000,000              $[*****]
                                                  $1,000,000+             $[*****]
-------------------------------------------------------------------------------------
</TABLE>

         IN WITNESS WHEREOF, authorized parties on behalf of their respective
entities have initialed this Attachment for CLASSIC CARRIER ORIGINATION Service
as of the date shown below.

VALOR TELECOMMUNICATIONS                         MCI WORLDCOM NETWORK
ENTERPRISES, L.L.C.                              SERVICES, INC.

Customer Initials MP                             MCI WorldCom's Initials JF

Date: 9/30/00                                    Date: 10/10/00

                                  Page 6 of 6
                                  CONFIDENTIAL

<PAGE>

                      MCI WORLDCOM NETWORK SERVICES, INC.

               ATTACHMENT FOR CLASSIC CARRIER TERMINATION SERVICE

         This Attachment for CLASSIC CARRIER TERMINATION SERVICE is made by and
between Valor Telecommunications Enterprises, L.L.C. ("CUSTOMER") and MCI
WORLDCOM Network Services, Inc. ("MCI WORLDCOM") and is a part of their
Telecommunications Services Agreement for Switched Services. Capitalized terms
not defined herein shall have the meaning ascribed to them in the TSA, the PET
or the applicable Attachment(s). NOTE: ANY MODIFICATIONS, ADDITIONS OR DELETIONS
FROM THIS ATTACHMENT WILL NOT BE EFFECTIVE UNLESS SPECIFICALLY SET FORTH IN THE
PET.

         During the Service Term of the Agreement, MCI WorldCom will provide
"CLASSIC CARRIER TERMINATION SERVICE" which is MCI WorldCom's termination of
calls received from Customers Service Interconnection(s) (as defined in the
PET), (i) subject to the limitation of origination and termination locations set
forth herein, and (ii) for the charges and applicable discounts set forth
herein.

I.       TERMS AND CONDITIONS.

         (A)      FORECASTS: Before Customers initial order for CLASSIC CARRIER
         TERMINATION Services, Customer shall provide MCI WorldCom with a
         forecast regarding the number of minutes expected to be terminated in
         various LATAs and/or Tandems, so as to enable MCI WorldCom to configure
         optimum network arrangements. IN THE EVENT CUSTOMERS TRAFFIC VOLUMES
         RESULT IN A LOWER THAN INDUSTRY STANDARD COMPLETION RATE OR OTHERWISE
         ADVERSELY AFFECT THE MCI WORLDCOM NETWORK, MCI WORLDCOM RESERVES THE
         RIGHT TO BLOCK THE SOURCE OF SUCH ADVERSE TRAFFIC AT ANY TIME. Customer
         will provide MCI WorldCom with additional forecasts from time to time
         upon MCI WorldCom's request which shall not be more frequent than once
         every three (3) months.

         (B)      START OF SERVICE: Start of Service for CLASSIC CARRIER
         TERMINATION Service will be concurrent with the activation of each
         circuit comprising a Carrier Service Interconnection (as defined in the
         PET) relevant to CLASSIC CARRIER TERMINATION Service.

         (C)      LIMITATION OF ORIGINATION AND TERMINATION LOCATIONS: CLASSIC
         CARRIER TERMINATION Service may be originated from any MCI WorldCom POP
         and terminated to any direct dialable location worldwide.

         (D)      BILLING INCREMENTS: All calls (excluding California IntraLATA
         and California Intrastate calls and calls to International Locations,
         Canada and Mexico) will be billed in six (6) second increments and
         subject to a six (6) second minimum charge. California IntraLATA and
         California intrastate calls will be billed in six (6) second increments
         and subject to an eighteen (18) second minimum charge. Calls to
         International Locations, Canada and Mexico will be billed in six (6)
         second increments and subject to a thirty (30) second minimum charge.
         All calls will be billed utilizing Hardware Answer Supervision where
         available.

                                  Page 1 of 4
                                  CONFIDENTIAL

<PAGE>

         (E)      RBOC ORIGINATION/TERMINATION REQUIREMENT: During each calendar
         month or pro rata portion thereof, Customer agrees to maintain at least
         80% of Customers Total Classic Minutes (as defined herein) for
         origination or termination (whichever is applicable) in a Tandem owned
         and operated by a Regional Bell Operating Company and subject to such
         RBOC's tariffed access charges. MCI WorldCom shall have the right to
         apply a $[*****] per minute surcharge to the number of minutes by which
         Non-RBOC Originations and/or Terminations exceed 20% of Customer's
         Total Classic Minutes. For purposes of this Subsection (E), "CUSTOMERS
         TOTAL CLASSIC MINUTES" will include all of Customer's CLASSIC CARRIER
         TERMINATION Service minutes, Customer's CLASSIC CARRIER ORIGINATION
         Service minutes, and Customer's CLASSIC END USER DEDICATED (1+ and TOLL
         FREE) Service minutes.

         (F)      PIU CERTIFICATION: With respect to a Carrier Service
         Interconnection as defined In the PET, absent the automatic number
         identification ("ANI") of the calling party, Customer shall provide MCI
         WorldCom with a written certification (the "CERTIFICATION") of the
         percentage of interstate (including international) and intrastate
         minutes of use relevant to the minutes of traffic to be terminated in
         the same state in which the MCI WorldCom POP is located to which the
         Carrier Service Interconnection is made. This Certification shall be
         provided by Customer prior to Start of Service for any Carrier Service
         Interconnection and may be modified from time to time by Customer and
         subject to recertification upon the request of MCI WorldCom which
         requests shall not be made unilaterally by MCI WorldCom more than once
         each calendar quarter. My such modification(s) or Certification(s)
         shall be effective as of the first day of any calendar month and
         following at least forty-five (45) days notice from Customer. In the
         event Customer fails to make such Certification, the relevant minutes
         of use will be deemed to be subject to the Intrastate Rates described
         herein. In the event MCI WorldCom or any other third party requires an
         audit of MCI WorldCom's interstate/intrastate minutes of traffic,
         Customer agrees to cooperate in such audit at its expense and make its
         call detail records, billing systems and other necessary information
         reasonably available to MCI WorldCom or any third party solely for the
         purpose of verifying Customers interstate/intrastate minutes of
         traffic. Customer agrees to indemnify MCI WorldCom for any liability
         MCI WorldCom incurs in the event Customers Certification is different
         than that determined by the audit.

II.      CLASSIC CARRIER TERMINATION SERVICE CHARGES.

         (A)      For purposes of this Attachment, Customers "SWITCHED SERVICES
         REVENUE" will be comprised of Customer's gross (i.e., prior to the
         application of discounts) measured and per call Switched Service
         charges described below (i.e., both domestic and International).

                                  Page 2 of 4
                                  CONFIDENTIAL
<PAGE>

         (B)      Rates Per Minute (except for DIRECTORY ASSISTANCE which is per
         call).

<TABLE>
<CAPTION>
                             SERVICE                                                  RATE
-------------------------------------------------------------------------------------------------
<S>                                                                             <C>
INTERSTATE (within the 48 contiguous United States; rates based on              SEE Schedule CL-D
location of terminating LATA)
-------------------------------------------------------------------------------------------------
INTERSTATE EXTENDED DOMESTIC Locations (from the 48 contiguous United           SEE Schedule CL-E
States to Extended Locations)
-------------------------------------------------------------------------------------------------
INTRASTATE (within the 48 contiguous United States)*                            SEE Schedule CL-F
-------------------------------------------------------------------------------------------------
CANADA (from the 48 contiguous United States to Canada)                         SEE Schedule CL-G
-------------------------------------------------------------------------------------------------
MEXICO (from the 48 contiguous United States to Mexico)*                        SEE Schedule CL-H
-------------------------------------------------------------------------------------------------
INTERNATIONAL (from the 48 contiguous United States to International            SEE Schedule CL-C
Locations)*
-------------------------------------------------------------------------------------------------
DIRECTORY ASSISTANCE*                                                           SEE Schedule CL-I
-------------------------------------------------------------------------------------------------
</TABLE>

* NOT SUBJECT TO DISCOUNT

III.     DISCOUNTS.

         Commencing with the Effective Date and continuing through the end of
         the Service Term (including any applicable extensions thereto),
         Customer's discount percentage for CLASSIC TERMINATION Service (the
         "DISCOUNT") will be determined under the Discount Schedule shown below
         based on Customer's actual Monthly Revenue for such month. Throughout
         the Service Term, Customer will automatically receive the next higher
         (or lower) Discount when Customer's eligible Monthly Revenue (as
         defined in the PET) reaches the next higher level (or falls to the next
         lower level).

<TABLE>
<CAPTION>
  MONTHLY REVENUE                     DISCOUNT
  ---------------                     --------
<S>                                   <C>
$[*****]   - $[*****]                   0.00%
$[*****]   - $[*****]                   2.50%
$[*****]   - $[*****]                   5.00%
$[*****]   - $[*****]                   7.50%
       $[*****]                        10.00%
</TABLE>

IV.      CDR MEDIA.

                  MCI WorldCom will provide Call Detail Records (CDRs) for MCI
         WorldCom's Switched Services in machine readable form in one of several
         magnetic tape formats (selected by Customer on Customers Service
         Request) ("CDR MEDIA"). CDR Media provided hereunder (i) monthly is
         provided at no charge, (ii) weekly is subject to a recurring monthly
         charge of $[*****], and (iii) daily is subject to the applicable
         non-recurring Installation Charge as described below (plus all
         leased-line and equipment costs necessary to implement Daily CDR Media
         which will be determined on an individual case basis depending on
         Customer's specific configuration).

                                  Page 3 of 4
                                  CONFIDENTIAL

<PAGE>

<TABLE>
<CAPTION>
                                                    TOTAL CONTRACT                NON-RECURRING
                     TYPE                                VALUE                 INSTALLATION CHARGE
--------------------------------------------------------------------------------------------------
<S>                                                 <C>                        <C>
Daily CDR Media-Customer provided hardware and       <$1,000,000                     $[*****]
software                                              $1,000,000+                    $[*****]
--------------------------------------------------------------------------------------------------
Daily CDR Media-PC Solution                          <$1,000,000                     $[*****]
                                                      $1,000,000+                    $[*****]
--------------------------------------------------------------------------------------------------
Sub-Daily CDR Media-Customer Provided hardware       <$1,000,000                     $[*****]
and software                                          $1,000,000+                    $[*****]
--------------------------------------------------------------------------------------------------
Sub-Daily CDR Media-PC Solution                      <$1,000,000                     $[*****]
                                                      $1,000,000+                    $[*****]
--------------------------------------------------------------------------------------------------
</TABLE>

         IN WITNESS WHEREOF, authorized parties on behalf of their respective
entities have initialed this Attachment for CLASSIC CARRIER TERMINATION Service
as of the date shown below.

VALOR TELECOMMUNICATIONS                            MCI WORLDCOM NETWORK
ENTERPRISES, L.L.C.                                 SERVICES, INC.

Customer Initials MP                                MCI WorldCom's Initials JF

Date: 9/30/00                                       Date: 10/10/00

                                  Page 4 of 4
                                  CONFIDENTIAL

<PAGE>

                       MCI WORLDCOM NETWORK SERVICES, INC.

              ATTACHMENT FOR INTERNATIONAL TOLL FREE SERVICE (ITFS)

This ATTACHMENT FOR INTERNATIONAL TOLL FREE SERVICES (the "ITFS ATTACHMENT") is
made this 30th day of September, 2000, by and between MCI WORLDCOM Network
Services, Inc. ("MCI WORLDCOM") and VALOR TELECOMMUNICATIONS ENTERPRISES, L.L.C.
("CUSTOMER") and is a part of their Telecommunications Services Agreement for
Switched Services. Capitalized terms not defined herein shall have the meaning
ascribed to them in the TSA or the PET, as applicable. NOTE: ANY MODIFICATIONS,
ADDITIONS OR DELETIONS FROM THIS ATTACHMENT WILL NOT BE EFFECTIVE UNLESS
SPECIFICALLY SET FORTH IN THE PET.

1.       ITFS SERVICES:

         (A)      During the ITFS Term (as described in Section 2 below) MCI
         WorldCom will provide (i) dedicated access international toll free
         service ("DEDICATED ITFS") which is the (x) international origination
         of calls by MCI WorldCom and the termination of such calls to
         Customer's designated and MCI WorldCom approved Service
         Interconnection(s) in the 48 contiguous United States, or (y)
         international origination of calls by MCI WorldCom and the termination
         of such calls to an End User's domestic United States private branch
         exchange ("PBX") or other customer premise equipment located in the 48
         contiguous United States, or (ii) switched access international toll
         free service ("SWITCHED ITFS") which is the international origination
         of calls by MCI WorldCom and the termination of such calls to the 48
         contiguous United States solely over facilities comprising the MCI
         WorldCom network. Subject to the provisions of this ITFS Attachment,
         all terms and conditions set forth in the TSA and the PET will apply,
         to the extent applicable, to DEDICATED ITFS and SWITCHED ITFS provided
         hereunder.

         (B)      In order to utilize DEDICATED ACCESS ITFS, one or more full
         time dedicated connections between (i) Customer's network in the 48
         contiguous United States and the MCI WorldCom network at one or more
         MCI WorldCom designated locations ("MCI WORLDCOM POP"), or (ii) an End
         User's PBX or other customer premise equipment and the MCI WorldCom
         network at a MCI WorldCom POP must be established ("ITFS
         INTERCONNECTION(S)"). Each ITFS Interconnection shall be comprised of
         one or more DS-1 circuits. All provisions set forth in the PET relating
         to or referencing "Carrier Service Interconnections" or "Service
         Interconnections" shall be deemed to include ITFS Interconnections.

2.       ITFS TERM: The "ITFS TERM" will commence as of _______________ (the
         "EFFECTIVE DATE") and will be coterminous with the Service Term
         described in the PET. At the end of the ITFS Term, the terms and
         conditions contained in this ITFS Attachment will remain in full force
         and effect until the earlier of (i) cancellation by either party upon
         at least thirty (30) days' prior written notice to the other party, or
         (ii) the cancellation or scheduled termination of the TSA.

3.       ITFS CHARGES: For purposes of this Attachment, Customer's "SWITCHED
         SERVICES REVENUE" will be comprised of Customers measured and per call
         Switched Service

                                  Page 1 of 3
                                  CONFIDENTIAL

<PAGE>

         charges as described on Schedule ITFS-A attached hereto and
         incorporated herein by reference. Commencing with the Effective Date
         and continuing through the end of the ITFS Term, Customer's ITFS rates
         for DEDICATED ITFS and SWITCHED ITFS will be the $__________ level of
         applicable charges shown on Schedule ITFS-A. [Note: If left blank,
         Customer's ITFS rates will be deemed to be the "Base ITFS Rates" shown
         on Schedule ITFS-A.] The rates shown on Schedule ITFS-A are not subject
         to any discounts.

4.       ACCESSIBILITY/AVAILABILITY: MCI WorldCom will reasonably notify
         Customer of the various international dialing patterns (the "DIALING
         PATTERN") used by those countries in which ITFS is provided by MCI
         WorldCom. MCI WorldCom will provide ITFS subject to availability as
         determined solely by MCI WorldCom. Upon MCI WorldCom's receipt of a
         Service Order from Customer, MCI WorldCom will obtain for Customer, at
         no cost to Customer, a toll free number (the "ITFS NUMBER") from the
         applicable PTT on a random basis (i.e., no specific number requests
         will be accepted by MCI WorldCom) for use by Customer in connection
         with the Dialing Pattern. The ITFS Number will be translated to a MCI
         WorldCom designated 800 billing identification number. MCI WorldCom
         reserves the right upon not less than ten (10) days' prior notice to
         terminate ITFS relative to any ITFS Number which does not generate at
         least sixty (60) minutes of traffic during any consecutive six (6)
         months. In the event a number is disconnected as provided in this
         Section 4, Customer agrees to pay $[*****] per ITFS Number which is
         disconnected.

5.       START OF SERVICE: Start of Service for (i) DEDICATED ITFS will occur
         concurrently with the activation of each circuit comprising Service
         Interconnections relevant to DEDICATED ITFS, and (ii) SWITCHED ITFS
         will occur on an ITFS Number by ITFS Number basis concurrently with the
         activation of each ITFS Number.

6.       LIMITATION OF ORIGINATION OR TERMINATION LOCATIONS:

         (a)      DEDICATED ITFS: (i) origination is available from those
         countries shown on Schedule A as such Schedule may be amended or
         modified from time to time by MCI WorldCom, and (ii) termination is
         available to any Customer designated ITFS Interconnection in the 48
         contiguous United States unless such traffic originates in a country
         where re-origination of ITFS is specifically allowed by the applicable
         PTT; provided, if re-origination occurs (or ITFS is used In any way
         contrary to applicable PTT rules and regulations, Customer specifically
         acknowledges that such traffic is subject to interruption).

         (b)      SWITCHED ITFS: (i) origination Is available from those
         countries shown on Schedule A as such Schedule may be amended from time
         to time by MCI WorldCom, and (ii) termination is available to locations
         in the 48 contiguous United States unless such traffic originates in a
         country where re-origination of ITFS is specifically allowed by the
         applicable PTT; provided, if re-origination occurs (or ITFS is used in
         any way contrary to applicable PTT rules and regulations, Customer
         specifically acknowledges that such traffic is subject to
         interruption).

                                  Page 2 of 3
                                  CONFIDENTIAL

<PAGE>

7.       CDR MEDIA. MCI WorldCom will provide Call Detail Records (CDRs) for MCI
         WorldCom's Switched Services in machine readable form in one of several
         magnetic tape formats (selected by Customer on Customers Service
         Request) ("CDR MEDIA"). CDR Media provided hereunder (i) monthly is
         provided at [*****], (ii) weekly is subject to a recurring monthly
         charge of $[*****], and (iii) daily is subject to the applicable
         non-recurring Installation Charge as described below (plus all
         leased-line and equipment costs necessary to implement Daily CDR Media
         which will be determined on an individual case basis depending on
         Customers specific configuration).

<TABLE>
<CAPTION>
                                                    TOTAL CONTRACT                NON-RECURRING
                     TYPE                                VALUE                 INSTALLATION CHARGE
--------------------------------------------------------------------------------------------------
<S>                                                 <C>                        <C>
Daily CDR Media-Customer provided hardware and       <$1,000,000                     $[*****]
software                                              $1,000,000+                    $[*****]
--------------------------------------------------------------------------------------------------
Daily CDR Media-PC Solution                          <$1,000,000                     $[*****]
                                                      $1,000,000+                    $[*****]
--------------------------------------------------------------------------------------------------
Sub-Daily CDR Media-Customer Provided hardware       <$1,000,000                     $[*****]
and software                                          $1,000,000+                    $[*****]
--------------------------------------------------------------------------------------------------
Sub-Daily CDR Media-PC Solution                      <$1,000,000                     $[*****]
                                                      $1,000,000+                    $[*****]
--------------------------------------------------------------------------------------------------
</TABLE>

         IN WITNESS WHEREOF, authorized parties on behalf of their respective
entities have initialed this Attachment for INTERNATIONAL TOLL FREE SERVICES as
of the date shown below

VALOR TELECOMMUNICATIONS                                 MCI WORLDCOM NETWORK
ENTERPRISES, L.L.C.                                      SERVICES, INC.

MCI WorldCom's Initials JF                               Customer Initials MP

Date: 10/10/00                                           Date: 9/30/00

ATTACHMENTS:

         Schedule ITFS-A = International Toll Free Services Rates

                                  Page 3 of 3
                                  CONFIDENTIAL

<PAGE>

                                 SCHEDULE ITFS-A
                          CLASSIC MILLENNIUM ITFS RATES

<TABLE>
<CAPTION>
      COUNTRY                        SWITCHLESS                DED/ORIG
-----------------------------------------------------------------------
<S>                                  <C>                       <C>
Antigua & Barbuda                      [*****]                  [*****]
-----------------------------------------------------------------------
Argentina                              [*****]                  [*****]
-----------------------------------------------------------------------
Australia                              [*****]                  [*****]
-----------------------------------------------------------------------
Bahamas                                [*****]                  [*****]
-----------------------------------------------------------------------
Bahrain                                [*****]                  [*****]
-----------------------------------------------------------------------
Barbados                               [*****]                  [*****]
-----------------------------------------------------------------------
Belgium                                [*****]                  [*****]
-----------------------------------------------------------------------
Bermuda                                [*****]                  [*****]
-----------------------------------------------------------------------
Brazil                                 [*****]                  [*****]
-----------------------------------------------------------------------
Cayman Islands                         [*****]                  [*****]
-----------------------------------------------------------------------
Chile                                  [*****]                  [*****]
-----------------------------------------------------------------------
China                                  [*****]                  [*****]
-----------------------------------------------------------------------
Colombia                               [*****]                  [*****]
-----------------------------------------------------------------------
Costa Rica                             [*****]                  [*****]
-----------------------------------------------------------------------
Cyprus                                 [*****]                  [*****]
-----------------------------------------------------------------------
Denmark                                [*****]                  [*****]
-----------------------------------------------------------------------
Dominican Republic                     [*****]                  [*****]
-----------------------------------------------------------------------
Ecuador                                [*****]                  [*****]
-----------------------------------------------------------------------
El Salvador                            [*****]                  [*****]
-----------------------------------------------------------------------
Finland                                [*****]                  [*****]
-----------------------------------------------------------------------
France                                 [*****]                  [*****]
-----------------------------------------------------------------------
Germany                                [*****]                  [*****]
-----------------------------------------------------------------------
Greece                                 [*****]                  [*****]
-----------------------------------------------------------------------
Guatemala                              [*****]                  [*****]
-----------------------------------------------------------------------
Hong Kong                              [*****]                  [*****]
-----------------------------------------------------------------------
Hungary                                [*****]                  [*****]
-----------------------------------------------------------------------
Indonesia                              [*****]                  [*****]
-----------------------------------------------------------------------
Ireland                                [*****]                  [*****]
-----------------------------------------------------------------------
Israel                                 [*****]                  [*****]
-----------------------------------------------------------------------
Italy                                  [*****]                  [*****]
-----------------------------------------------------------------------
Jamaica                                [*****]                  [*****]
-----------------------------------------------------------------------
Japan                                  [*****]                  [*****]
-----------------------------------------------------------------------
Luxembourg                             [*****]                  [*****]
-----------------------------------------------------------------------
Malaysia                               [*****]                  [*****]
-----------------------------------------------------------------------
Marshall Islands                       [*****]                  [*****]
-----------------------------------------------------------------------
Mexico                                 [*****]                  [*****]
-----------------------------------------------------------------------
Monaco                                 [*****]                  [*****]
-----------------------------------------------------------------------
Netherlands                            [*****]                  [*****]
-----------------------------------------------------------------------
Netherlands Antilles                   [*****]                  [*****]
-----------------------------------------------------------------------
New Zealand                            [*****]                  [*****]
-----------------------------------------------------------------------
Nicaragua                              [*****]                  [*****]
-----------------------------------------------------------------------
Norway                                 [*****]                  [*****]
-----------------------------------------------------------------------
Panama                                 [*****]                  [*****]
-----------------------------------------------------------------------
Peru                                   [*****]                  [*****]
-----------------------------------------------------------------------
Philippines                            [*****]                  [*****]
-----------------------------------------------------------------------
Poland                                 [*****]                  [*****]
-----------------------------------------------------------------------
Portugal                               [*****]                  [*****]
-----------------------------------------------------------------------
Qatar                                  [*****]                  [*****]
-----------------------------------------------------------------------
</TABLE>

April 2000                       ITFS                                Page 1 of 2

<PAGE>

                       MCI WORLDCOM NETWORK SERVICES, INC.

                        ATTACHMENT FOR OPERATOR SERVICES

         This ATTACHMENT FOR OPERATOR SERVICES is made by and between Valor
Telecommunications Enterprises, L.L.C. ("CUSTOMER") and MCI WORLDCOM Network
Services, Inc. ("MCI WORLDCOM") and is a part of their Telecommunications
Services Agreement for Switched Services. Capitalized terms not defined herein
shall have the meaning ascribed to them in the TSA, the PET or the applicable
Attachment(s) NOTE: ANY MODIFICATIONS, ADDITIONS OR DELETIONS FROM THIS
ATTACHMENT WILL NOT BE EFFECTIVE UNLESS SPECIFICALLY SET FORTH IN THE PET.

         During the Service Term of the Agreement, MCI WorldCom will provide
"OPERATOR SERVICES" which are long distance calls dialed with (i) the 0+, 01+ or
00- dialing pattern, or (ii) the 8XX dialing pattern (i.e., access via a Toll
Free number) configured to terminate to MCI WorldCom's OPERATOR SERVICES
platform (and excluding calls dialed with the 950-XXXX dialing pattern). With
respect to Domestic Interstate and International OPERATOR SERVICES, this
Attachment incorporates by reference the terms of MCI Tariff FCC No. 1 (the
"TARIFF"), which may be modified from time to time by MCI WorldCom in accordance
with law and thereby affect the Services furnished Customer hereunder, except
that the terms and conditions contained in the TSA, the PET or this Attachment
shall supplement or, to the extent inconsistent, supersede the Tariff terms and
conditions. With respect to Intrastate OPERATOR SERVICES, this Attachment
incorporates by reference each applicable state tariff filed by MCI WorldCom
which may be modified from time to time by MCI WorldCom and thereby affect the
Services furnished.

I.       TERMS AND CONDITIONS.

         (A)      Call Originating Identification Information. MCI WorldCom must
         receive electronic call origination identification ANI information for
         each call carried hereunder. If the Originating Site uses Feature Group
         D local access service, the required call origination identification
         information is automatically supplied by the LEC. If the Originating
         Site uses a type of local access service other than Feature Group D
         local access service, the Originating Site shall cause electronic call
         origination identification information (in a form acceptable to MCI
         WorldCom) to be supplied to MCI WorldCom at the initiation of each
         call.

         (B)      Emergency Calls. Each Originating Site shall configure its
         system so that 911 emergency calls, where available, and similar
         emergency calls, will be automatically routed to the appropriate party
         or clearing house without the intervention of MCI WorldCom. Emergency
         calls which do reach an MCI WorldCom operator shall be handled in
         accordance with MCI WorldCom standard operating procedures, MCI
         WorldCom makes no representation or warranty as to the handling of 911
         or other emergency calls.

         (C)      Payphones.

                  (1)      Payphone lines must be classed as "07" COCOT.

                                   Page 1 of 6
                                  CONFIDENTIAL

<PAGE>

                  (2)      All payphones must have Billed Number Screening
                  ("BNS"), if available, If BNS is not available, the Customer
                  will be responsible for calls billed to any lines without BNS.

                  (3)      Unless otherwise permitted by law, all 0- calls must
                  be passed to the LEC.

                  (4)      Payphones must not block 950-XXXX or 1-8XX-XXX-XXXX
                  calls.

                  (5)      All payphones must have "011" blocking at the central
                  office, if available, if international blocking is not
                  available, or if Customer chooses not to block "011" calls,
                  then Customer assumes responsibility for any international
                  fraud.

                  (6)      For Premises Telephones located in condominiums,
                  Customer shall be liable for all charges attributable to the
                  failure of Customer to secure screening which prevents 1010XXX
                  domestic and international dialing and which indicates to
                  operators that the telephone is restricted to prohibit billing
                  to the original ANI.

                  (7)      Customer shall be responsible for any fraud resulting
                  from its purchase and use of MCI WorldCom OPERATOR SERVICES.

         (D)      Compliance. Customer will comply with applicable federal,
         state and local laws and regulations, including without limitation the
         Telephone Operator Consumer Services Improvement Act, and other laws
         and regulations relating to OPERATOR SERVICES during the Service Term
         of this Agreement.

         (E)      Authority. Customer warrants that it is authorized to select
         the operator services carrier for the telephones served by Customer
         pursuant to this Agreement. Customer agrees that if any party makes any
         claims against MCI WorldCom for commissions from such telephones,
         Customer will be responsible for any such claim.

         (F)      Limitation on Service. The terms and conditions of MCI
         WorldCom OPERATOR SERVICES are subject to change, in whole or In part,
         at MCI WorldCom's sole discretion, including, without limitation, the
         service description and rates and charges. MCI WorldCom will provide
         Customer with written notice of such changes at least thirty (30) days
         in advance of the effective date thereof, except with respect to any
         changes which must be implemented immediately, in MCI WorldCom's
         reasonable judgment, in order to protect MCI WorldCom, MCI WorldCom's
         customers, or MCI WorldCom's officers, employees, stockholders,
         affiliates or vendors from the risk of fraud, legal liability,
         financial loss or liability, loss of good will, damage to facilities or
         physical harm. MCI WorldCom OPERATOR SERVICES is provided on an "as is"
         and "as available" basis, without warranties of any kind, express or
         implied, including but not limited to warranties of title,
         noninfringement or implied warranties of merchantability or fitness for
         a particular purpose. No advice or information given by MCI WorldCom's
         employees, agents or contractors shall create a warranty. Customer
         assumes total responsibility for use of MCI WorldCom's OPERATOR
         SERVICES by Customer and its End Users.

                                   Page 2 of 6
                                  CONFIDENTIAL

<PAGE>
         (G)      Customer Service. Customer agrees that all customer service
         calls (i.e., billing disputes, troubles, general inquiries) shall be
         routed to Customers customer service via a Customer-provided Toll Free
         number.

         (H)      Language Assistance. Customer agrees that if, on a monthly
         basis, calls utilizing MCI WorldCom OPERATOR SERVICES language
         assistance exceed [*****], Customer shall pay the Tariff rate for all
         calls exceeding [*****].

         (I)      Brand. Customer agrees to resell MCI WorldCom, OPERATOR
         SERVICES in its own name only.

         (J)      Service Delivery. Customer agrees to receive OPERATOR SERVICES
         from and deliver OPERATOR SERVICES to a MCI WorldCom POP by utilizing
         MCI WorldCom private line service.

         (K)      Billing. Customer is responsible for all end-user billing for
         operator services and agrees that if MCI WorldCom provides rating
         and/or recording services for billing, Customer shall indemnify and
         hold MCI WorldCom harmless from any and all claims, damages, fines,
         penalties or other liabilities (including attorney fees) arising from
         the inaccuracy of any information or the inadequacy of any procedures
         or personnel.

         (L)      Call Detail Records.

                  (1)      Call Detail Records ("CDRS") for OPERATOR SERVICES
                  are available to Customer on a next day basis. Customer
                  assumes responsibility for pulling the CDRs from the Carrier
                  Operator Services Bulletin Board. Records will only be posted
                  to the bulletin board for ten (10) days from the date of call.

                  (2)      The minimum fee for rating CDRs is [*****]. In
                  addition to set-up charges, Customer shall pay the monthly
                  recurring fees in the following schedule.

<TABLE>
<CAPTION>
Number of CDRs                       Monthly Recurring Fee per CDR
--------------                       -----------------------------
<S>                                  <C>
0 to 4,999                                     $[*****]
5,000 to 9,999                                 $[*****]
10,000 and above                               $[*****]
</TABLE>

                  (3)      Customer shall be responsible for the review of all
                  CDRs and Customer shall indemnify MCI WorldCom and hold MCI
                  WorldCom harmless from any and all claims, damages, fines,
                  penalties or other liabilities (including attorney fees)
                  arising from the inaccuracy of any information or the
                  inadequacy of any procedures or personnel.

         (M)      Forecasting. Customer agrees to provide a written monthly
         forecast for automated and live MCI WorldCom OPERATOR SERVICES to be
         received by MCI WorldCom, no later than ten (10) days prior to the
         beginning of each month.

                                   Page 3 of 6
                                  CONFIDENTIAL

<PAGE>

         (N)      Pay Phone Surcharge. In the event MCI WorldCom is required to
         compensate payphone service providers (PSPs) for toll-free or access
         code calls which originate from payphones (including without
         limitation, any Order adopted by the FCC) ("PAYPHONE SURCHARGE"), MCI
         WorldCom will charge and Customer agrees to pay MCI WorldCom the amount
         of the Payphone Surcharge which is required to be paid by MCI WorldCom.

II.      OPERATOR SERVICES CHARGES.

         (A)      Base Rates. The rates in the following schedule shall be
         charged on Customers usage of MCI WorldCom OPERATOR SERVICES. The
         automated rate will be charged from the time a call reaches a note
         until the call is terminated. The live rate will be charged in addition
         to automated rates for the portion of each call that is handled by a
         live operator. For purposes of this Attachment, Customer's "SWITCHED
         SERVICES REVENUE" will be comprised only of Customers gross (i.e.,
         prior to the application of discounts) charges described in the
         immediately following table.

<TABLE>
<CAPTION>
                  Automated                                Live
Monthly Attempts                   Rate/Sec.             Rate/Sec.
----------------                  ---------             ---------
<S>                               <C>                   <C>
      0  - 24,999                  $[*****]              $[*****]
250,001  - 49,999                  $[*****]              $[*****]
500,000  - 99,999                  $[*****]              $[*****]
       100,000+                    $[*****]              $[*****]
</TABLE>

         In addition to the charges described above, an initial set-up charge of
         [*****] shall apply. This set-up charge includes the recording of one
         script, one Secure ID card and initial build of five (5) domestic rate
         tables for quoting.

         (B)      Line Information Database Charge. All applicable attempts will
         receive a line information database (LIDB) charge according to the
         following schedule:

<TABLE>
<CAPTION>
Call Type                   Rate Per Call
---------                   -------------
<S>                         <C>
Interstate                    $[*****]
Intrastate                    $[*****]
</TABLE>

         (C)      Calls Terminated by MCI WorldCom. All OPERATOR SERVICE calls
         must be terminated by MCI WorldCom. In connection with such
         termination, Customer shall pay MCI WorldCom the applicable Operator
         Service Termination rates set forth on Schedule OS-A attached hereto
         and incorporated herein by reference.

         (D)      Calls Originated via Toll Free Number. If MCI WorldCom's
         OPERATOR SERVICES platform, is accessed via a Toll Free number,
         Customer agrees to pay MCI WorldCom the applicable Operator Services
         Toll Free Origination rates set forth on Schedule OS-B attached hereto
         and incorporated herein by reference.

                                   Page 4 of 6
                                  CONFIDENTIAL

<PAGE>

         (E)      Minimum Call Duration.

                  (1)      Customers average call duration for all calls made in
                  a single billing period for each call type ("CUSTOMER'S
                  AVERAGE CALL DURATION") must equal or exceed the Minimum Call
                  Duration as indicated immediately below:

<TABLE>
<CAPTION>
Call Type                Minimum Call Duration
---------                ---------------------
<S>                      <C>
  Auto                         90 seconds
  Live                         10 seconds
</TABLE>

                  (2)      If Customer's Average Call Duration does not equal or
                  exceed the Minimum Call Duration, Customer shall pay an
                  additional charge equal to the following formula:

                           (Minimum Call Duration -- Customer's Average Call
                           Duration) X Number of Calls X Rate Per Second

III.     RATE QUOTES.

         (A)      Customer must provide MCI WorldCom the appropriate rate
         information to enable MCI WorldCom to provide real-time rate quotes to
         callers. However, Customer shall indemnify MCI WorldCom and hold MCI
         WorldCom harmless from any and all claims, damages, fines, penalties or
         other liabilities (including attorney fees) arising from the inaccuracy
         of any information or the inadequacy of any procedures or personnel.

         (B)      The non-recurring charges in the following schedule shall be
         charged if Customer selects rate quoting.

<TABLE>
<CAPTION>
       Type                                   Charges
       ----                                   -------
<S>                                   <C>
Interstate                            $[*****] per Tariff Schedule
Intrastate                            $[*****] per Tariff Schedule
US to International                   $[*****] per Tariff Schedule
Mirrors MCI WorldCom                  $[*****] per Carrier
</TABLE>

         (C)      Customer shall pay the annual maintenance fees In the
         following schedule.

<TABLE>
<CAPTION>
       Type                                    Charges
       ----                                    -------
<S>                                   <C>
Interstate                            $[*****] per Tariff Schedule
Intrastate                            $[*****] per Tariff Schedule
US to International                   $[*****] per Tariff Schedule
Mirrors MCI WorldCom                  $[*****] per Carrier
</TABLE>

         (D)      If Customer chooses to have MCI WorldCom rate its traffic,
         then the following Rate Database set-up charges shall apply.

                                   Page 5 of 6
                                  CONFIDENTIAL

<PAGE>

<TABLE>
<CAPTION>
       Type                                       Charges
       ----                                       -------
<S>                                               <C>
Program Management                                $[*****]
Systems and Development                           $[*****]
Quality Assurance                                 $[*****]
Regulatory Affairs                                $[*****]
Data Center                                       $[*****]
Client Services                                   $[*****]
</TABLE>

         IN WITNESS WHEREOF, authorized parties on behalf of their respective
entities have initialed this Attachment for OPERATOR SERVICES as of the date
shown below.

VALOR TELECOMMUNICATIONS                           MCI WORLDCOM NETWORK
ENTERPRISES, L.L.C.                                SERVICES, INC.

Customer Initials MP                               MCI WorldCom's Initials JF
Date: 9/30/00                                      Date: 10/10/00

Attachments:

Schedule OS-A - Operator Services Termination Rates
Schedule OS-B - Operator Services Toll Free Origination Rates

                                   Page 6 of 6
                                  CONFIDENTIAL

<PAGE>

SCHEDULE OS-A
Revised 4/00
OPERATOR SERVICES TERMINATION
LEC BASED RATES

<TABLE>
<CAPTION>
                                         PRISM                                     PRISM
                                         BASE                                       BASE
GROUP #       LEC GROUP                  RATE          GROUP #    LEC GROUP         RATE
-----------------------------------------------------------------------------------------
<S>         <C>                         <C>            <C>        <C>              <C>
   1        AMERITECH                   [*****]           15      GTE 5            [*****]
-----------------------------------------------------------------------------------------
   2        AMERITECH-IL                [*****]           16      NECA 1           [*****]
-----------------------------------------------------------------------------------------
   3        BELL ATLANTIC               [*****]           17      NECA 2           [*****]
-----------------------------------------------------------------------------------------
   4        BELL SOUTH                  [*****]           18      NECA 3           [*****]
-----------------------------------------------------------------------------------------
   5        NYNEX                       [*****]           19      NECA 4           [*****]
-----------------------------------------------------------------------------------------
   6        NYNEX LATA 132              [*****]           20      ALIANT           [*****]
-----------------------------------------------------------------------------------------
   7        PAC BELL - CA               [*****]           21      CENTEL           [*****]
-----------------------------------------------------------------------------------------
   8        PAC BELL - NV               [*****]           22      CONTEL 1         [*****]
-----------------------------------------------------------------------------------------
   9        SWB                         [*****]           23      CONTEL 2         [*****]
-----------------------------------------------------------------------------------------
   10       US WEST                     [*****]           24      SNET             [*****]
-----------------------------------------------------------------------------------------
   11       GTE 1                       [*****]           25      UNITED 1         [*****]
-----------------------------------------------------------------------------------------
   12       GTE 2                       [*****]           26      UNITED 2         [*****]
-----------------------------------------------------------------------------------------
   13       GTE 3                       [*****]           27      UNITED 3         [*****]
-----------------------------------------------------------------------------------------
   14       GTE 4                       [*****]           28      OTHER**          [*****]
-----------------------------------------------------------------------------------------
</TABLE>

GTE 1 - FL, CA, MN
GTE 2 - TX, MO, VA, WA
GTE 3 - OR, OH, SC, IL, MI, PA, NM, OK
GTE 4 - KY NC, NE, IN, AL, WI
GTE 5 - ID, AR, IA

CONTEL 1 - VA, IN, MN, KY, SC, AR, NC, MO, AL, AZ
CONTEL 2 - NM, TX, WA, IA, PA, IL, CA

NECA 1 - NE, IL, AL, VA, LA, NY, MA, CT, FL, IN, MD, NC, OH, PA, SC, TN, WI, NV
NECA 2 - SD, AR, OR, CA, MS, WV, GA, IA, MO, ME, MN, MI, CO, MT, WY, NH, TX, VT
NECA 3 - NM, ND, KS, KY, WA, OK
NECA 4 - ID, UT, AZ

UNITED 1 - FL, NC, TN, VA, SC, PA, NJ
UNITED 2 - OR, WA, OH, IN
UNITED 3 - NE, MN, MO, KS, TX

BILLING INCREMENTS (AS OF 1/99, SEE MCI TARIFF FOR UPDATES)

-        Domestic          6 second minimum, 6 second increments

-        International     30 second minimum, 6 second increments

MCI WORLDCOM                                                        CONFIDENTIAL

<PAGE>

MCI WORLDCOM                                                        CONFIDENTIAL

SCHEDULE OS-A
Revised 4/00
Operator Services Termination

OPERATOR SERVICES EXTENDED CALL COVERAGE TERMINATION RATES

<TABLE>
<CAPTION>
    LOCATION                       PEAK RATE               OFF PEAK RATE
------------------------------------------------------------------------
<S>                                <C>                     <C>
Alaska                               [*****]                  [*****]
------------------------------------------------------------------------
Guam                                 [*****]                  [*****]
------------------------------------------------------------------------
Hawaii                               [*****]                  [*****]
------------------------------------------------------------------------
Puerto Rico                          [*****]                  [*****]
------------------------------------------------------------------------
N Mariana Islands                    [*****]                  [*****]
------------------------------------------------------------------------
US Virgin Islands                    [*****]                  [*****]
------------------------------------------------------------------------
</TABLE>

OPERATOR SERVICES INTRASTATE TERMINATION RATES

<TABLE>
<CAPTION>
  STATE                PRISM RATE          STATE                   PRISM RATE
-----------------------------------------------------------------------------
<S>                    <C>             <C>                         <C>
Alabama                 $[*****]       Nebraska                     $[*****]
-----------------------------------------------------------------------------
Arizona                 $[*****]       Nevada                       $[*****]
-----------------------------------------------------------------------------
Arkansas                $[*****]       New Hampshire                $[*****]
-----------------------------------------------------------------------------
California              $[*****]       New Jersey                   $[*****]
-----------------------------------------------------------------------------
Colorado                $[*****]       New Mexico                   $[*****]
-----------------------------------------------------------------------------
Connecticut             $[*****]       New York                     $[*****]
-----------------------------------------------------------------------------
Delaware                $[*****]       North Carolina               $[*****]
-----------------------------------------------------------------------------
Florida                 $[*****]       North Dakota                 $[*****]
-----------------------------------------------------------------------------
Georgia                 $[*****]       Ohio                         $[*****]
-----------------------------------------------------------------------------
Idaho                   $[*****]       Oklahoma                     $[*****]
-----------------------------------------------------------------------------
Illinois                $[*****]       Oregon                       $[*****]
-----------------------------------------------------------------------------
Indiana                 $[*****]       Pennsylvania                 $[*****]
-----------------------------------------------------------------------------
Iowa                    $[*****]       Rhode Island                 $[*****]
-----------------------------------------------------------------------------
Kansas                  $[*****]       South Carolina               $[*****]
-----------------------------------------------------------------------------
Kentucky                $[*****]       South Dakota                 $[*****]
-----------------------------------------------------------------------------
Louisiana               $[*****]       Tennessee                    $[*****]
-----------------------------------------------------------------------------
Maine                   $[*****]       Texas                        $[*****]
-----------------------------------------------------------------------------
Maryland                $[*****]       Utah                         $[*****]
-----------------------------------------------------------------------------
Massachusetts           $[*****]       Vermont                      $[*****]
-----------------------------------------------------------------------------
Michigan                $[*****]       Virginia                     $[*****]
-----------------------------------------------------------------------------
Minnesota               $[*****]       Washington                   $[*****]
-----------------------------------------------------------------------------
Mississippi             $[*****]       West Virginia                $[*****]
-----------------------------------------------------------------------------
Missouri                $[*****]       Wisconsin                    $[*****]
-----------------------------------------------------------------------------
Montana                 $[*****]       Wyoming                      $[*****]
-----------------------------------------------------------------------------
</TABLE>

WHOLESALE OPERATOR SERVICES PRICING                                       PAGE 2

<PAGE>

MCI WORLDCOM                                                        CONFIDENTIAL

SCHEDULE OS-A
OPERATOR SERVICES INTERNATIONAL TERMINATION RATES

<TABLE>
<CAPTION>
      COUNTRY                                RATES
---------------------------------------------------
<S>                                         <C>
AFGHANISTAN                                 [*****]
---------------------------------------------------
ALBANIA                                     [*****]
---------------------------------------------------
ALGERIA                                     [*****]
---------------------------------------------------
AMERICAN SAMOA                              [*****]
---------------------------------------------------
ANDORRA                                     [*****]
---------------------------------------------------
ANGOLA                                      [*****]
---------------------------------------------------
ANGUILLA                                    [*****]
---------------------------------------------------
ANTIGUA & BARBUDA                           [*****]
---------------------------------------------------
ARGENTINA-LAND LINE                         [*****]
---------------------------------------------------
ARGENTINA-MOBILE                            [*****]
---------------------------------------------------
ARMENIA                                     [*****]
---------------------------------------------------
ARUBA                                       [*****]
---------------------------------------------------
ASCENSION ISLAND                            [*****]
---------------------------------------------------
AUSTRALIA - LAND LINE                       [*****]
---------------------------------------------------
AUSTRALIA-MOBILE                            [*****]
---------------------------------------------------
AUSTRIA-LAND LINE                           [*****]
---------------------------------------------------
AUSTRIA-MOBILE                              [*****]
---------------------------------------------------
AZERBAIJAN                                  [*****]
---------------------------------------------------
BAHAMAS                                     [*****]
---------------------------------------------------
BAHRAIN                                     [*****]
---------------------------------------------------
BANGLADESH                                  [*****]
---------------------------------------------------
BARBADOS                                    [*****]
---------------------------------------------------
BELARUS                                     [*****]
---------------------------------------------------
BELGIUM - LAND LINE                         [*****]
---------------------------------------------------
BELGIUM-MOBILE                              [*****]
---------------------------------------------------
BELIZE                                      [*****]
---------------------------------------------------
BENIN                                       [*****]
---------------------------------------------------
BERMUDA                                     [*****]
---------------------------------------------------
BHUTAN                                      [*****]
---------------------------------------------------
BOLIVIA-LAND LINE                           [*****]
---------------------------------------------------
BOLIVIA-MOBILE                              [*****]
---------------------------------------------------
BOSNIA & HERZEGOVINA                        [*****]
---------------------------------------------------
BOTSWANA                                    [*****]
---------------------------------------------------
BRAZIL-LAND LINE                            [*****]
---------------------------------------------------
BRAZIL-MOBILE                               [*****]
---------------------------------------------------
BRITISH VIRGIN ISLANDS                      [*****]
---------------------------------------------------
BRUNEI                                      [*****]
---------------------------------------------------
BULGARIA                                    [*****]
---------------------------------------------------
BURKINA FASO                                [*****]
---------------------------------------------------
BURUNDI                                     [*****]
---------------------------------------------------
CAMBODIA                                    [*****]
---------------------------------------------------
CAMEROON                                    [*****]
---------------------------------------------------
CAPE VERDE ISLANDS                          [*****]
---------------------------------------------------
CAYMAN ISLANDS                              [*****]
---------------------------------------------------
CENTRAL AFRICAN REPUBLIC                    [*****]
---------------------------------------------------
CHAD                                        [*****]
---------------------------------------------------
CHILE-LAND LINE                             [*****]
---------------------------------------------------
</TABLE>

WHOLESALE OPERATOR SERVICES PRICING                                       PAGE 3

<PAGE>

MCI WORLDCOM                                                        CONFIDENTIAL

SCHEDULE OS-A
OPERATOR SERVICES INTERNATIONAL TERMINATION RATES

<TABLE>
<CAPTION>
      COUNTRY                                RATES
---------------------------------------------------
<S>                                         <C>
CHILE-MOBILE                                [*****]
---------------------------------------------------
CHINA-LAND LINE                             [*****]
---------------------------------------------------
CHINA-MOBILE                                [*****]
---------------------------------------------------
COLOMBIA-LAND LINE                          [*****]
---------------------------------------------------
COLOMBIA-MOBILE                             [*****]
---------------------------------------------------
COMOROS                                     [*****]
---------------------------------------------------
CONGO                                       [*****]
---------------------------------------------------
COOK ISLANDS                                [*****]
---------------------------------------------------
COSTA RICA-LAND LINE                        [*****]
---------------------------------------------------
COSTA RICA-MOBILE                           [*****]
---------------------------------------------------
CROATIA                                     [*****]
---------------------------------------------------
CUBA                                        [*****]
---------------------------------------------------
CYPRUS-LAND LINE                            [*****]
---------------------------------------------------
CYPRUS-MOBILE                               [*****]
---------------------------------------------------
CZECH REPUBLIC                              [*****]
---------------------------------------------------
DENMARK-LAND LINE                           [*****]
---------------------------------------------------
DENMARK-MOBILE                              [*****]
---------------------------------------------------
DIEGO GARCIA                                [*****]
---------------------------------------------------
DJIBOUTI                                    [*****]
---------------------------------------------------
DOMINICA                                    [*****]
---------------------------------------------------
DOMINICAN REPUBLIC                          [*****]
---------------------------------------------------
ECUADOR-LAND LINE                           [*****]
---------------------------------------------------
ECUADOR-MOBILE                              [*****]
---------------------------------------------------
EGYPT-LAND LINE                             [*****]
---------------------------------------------------
EGYPT-MOBILE                                [*****]
---------------------------------------------------
EL SALVADOR                                 [*****]
---------------------------------------------------
EQUATORIAL GUINEA                           [*****]
---------------------------------------------------
ERITREA                                     [*****]
---------------------------------------------------
ESTONIA                                     [*****]
---------------------------------------------------
ETHIOPIA                                    [*****]
---------------------------------------------------
FALKLAND ISLANDS                            [*****]
---------------------------------------------------
FAROE ISLANDS                               [*****]
---------------------------------------------------
FIJI ISLANDS                                [*****]
---------------------------------------------------
FINLAND                                     [*****]
---------------------------------------------------
FRANCE - LAND LINE                          [*****]
---------------------------------------------------
FRANCE-MOBILE                               [*****]
---------------------------------------------------
FRENCH ANTILLES                             [*****]
---------------------------------------------------
FRENCH GUIANA                               [*****]
---------------------------------------------------
FRENCH POLYNESIA                            [*****]
---------------------------------------------------
GABON                                       [*****]
---------------------------------------------------
GAMBIA                                      [*****]
---------------------------------------------------
GEORGIA                                     [*****]
---------------------------------------------------
GERMANY - LAND LINE                         [*****]
---------------------------------------------------
GERMANY-MOBILE                              [*****]
---------------------------------------------------
GHANA                                       [*****]
---------------------------------------------------
GIBRALTAR                                   [*****]
---------------------------------------------------
GREECE-LAND LINE                            [*****]
---------------------------------------------------
GREECE-MOBILE                               [*****]
---------------------------------------------------
GREENLAND                                   [*****]
---------------------------------------------------
GRENADA                                     [*****]
---------------------------------------------------
</TABLE>

WHOLESALE OPERATOR SERVICES PRICING                                       PAGE 4

<PAGE>

MCI WORLDCOM                                                        CONFIDENTIAL

SCHEDULE OS-A
OPERATOR SERVICES INTERNATIONAL TERMINATION RATES

<TABLE>
<CAPTION>
      COUNTRY                                RATES
---------------------------------------------------
<S>                                         <C>
GUADELOUPE                                  [*****]
---------------------------------------------------
GUATEMALA-LAND LINE                         [*****]
---------------------------------------------------
GUATEMALA-MOBILE                            [*****]
---------------------------------------------------
GUINEA                                      [*****]
---------------------------------------------------
GUINEA BISSAU                               [*****]
---------------------------------------------------
GUYANA                                      [*****]
---------------------------------------------------
HAITI                                       [*****]
---------------------------------------------------
HONDURAS                                    [*****]
---------------------------------------------------
HONG KONG - LAND LINE                       [*****]
---------------------------------------------------
HONG KONG-MOBILE                            [*****]
---------------------------------------------------
HUNGARY                                     [*****]
---------------------------------------------------
ICELAND-LAND LINE                           [*****]
---------------------------------------------------
ICELAND-MOBILE                              [*****]
---------------------------------------------------
INDIA-LAND LINE                             [*****]
---------------------------------------------------
INDIA-MOBILE                                [*****]
---------------------------------------------------
INDONESIA-LAND LINE                         [*****]
---------------------------------------------------
INDONESIA-MOBILE                            [*****]
---------------------------------------------------
IRAN                                        [*****]
---------------------------------------------------
IRAQ                                        [*****]
---------------------------------------------------
IRELAND-LAND LINE                           [*****]
---------------------------------------------------
IRELAND-MOBILE                              [*****]
---------------------------------------------------
ISRAEL-LAND LINE                            [*****]
---------------------------------------------------
ISRAEL-MOBILE                               [*****]
---------------------------------------------------
ITALY - LAND LINE                           [*****]
---------------------------------------------------
ITALY-MOBILE                                [*****]
---------------------------------------------------
IVORY COAST                                 [*****]
---------------------------------------------------
JAMAICA                                     [*****]
---------------------------------------------------
JAPAN - LAND LINE                           [*****]
---------------------------------------------------
JAPAN-MOBILE                                [*****]
---------------------------------------------------
JORDAN                                      [*****]
---------------------------------------------------
KENYA                                       [*****]
---------------------------------------------------
KIRIBATI                                    [*****]
---------------------------------------------------
KUWAIT-LAND LINE                            [*****]
---------------------------------------------------
KUWAIT-MOBILE                               [*****]
---------------------------------------------------
KYRGYZSTAN                                  [*****]
---------------------------------------------------
LAOS                                        [*****]
---------------------------------------------------
LATVIA                                      [*****]
---------------------------------------------------
LEBANON-LAND LINE                           [*****]
---------------------------------------------------
LEBANON-MOBILE                              [*****]
---------------------------------------------------
LESOTHO                                     [*****]
---------------------------------------------------
LIBERIA                                     [*****]
---------------------------------------------------
LIBYA                                       [*****]
---------------------------------------------------
LIECHTENSTEIN                               [*****]
---------------------------------------------------
LITHUANIA                                   [*****]
---------------------------------------------------
LUXEMBOURG-LAND LINE                        [*****]
---------------------------------------------------
LUXEMBOURG-MOBILE                           [*****]
---------------------------------------------------
MACAO                                       [*****]
---------------------------------------------------
MACEDONIA                                   [*****]
---------------------------------------------------
MADAGASCAR-LAND MINE                        [*****]
---------------------------------------------------
MADAGASCAR-MOBILE                           [*****]
---------------------------------------------------
</TABLE>

WHOLESALE OPERATOR SERVICES PRICING                                       PAGE 5

<PAGE>

MCI WORLDCOM                                                        CONFIDENTIAL

SCHEDULE OS-A
OPERATOR SERVICES INTERNATIONAL TERMINATION RATES

<TABLE>
<CAPTION>
      COUNTRY                                RATES
---------------------------------------------------
<S>                                         <C>
MALAWI                                      [*****]
---------------------------------------------------
MALAYSIA-LAND LINE                          [*****]
---------------------------------------------------
MALAYSIA-MOBILE                             [*****]
---------------------------------------------------
MALDIVES                                    [*****]
---------------------------------------------------
MALI REPUBLIC                               [*****]
---------------------------------------------------
MALTA                                       [*****]
---------------------------------------------------
MARSHALL ISLANDS                            [*****]
---------------------------------------------------
MAURITANIA                                  [*****]
---------------------------------------------------
MAURITIUS                                   [*****]
---------------------------------------------------
MAYOTTE ISLAND                              [*****]
---------------------------------------------------
MICRONESIA                                  [*****]
---------------------------------------------------
MOLDOVA                                     [*****]
---------------------------------------------------
MONACO                                      [*****]
---------------------------------------------------
MONGOLIA                                    [*****]
---------------------------------------------------
MONTSERRAT                                  [*****]
---------------------------------------------------
MOROCCO                                     [*****]
---------------------------------------------------
MOZAMBIQUE                                  [*****]
---------------------------------------------------
MYANMAR - BURMA                             [*****]
---------------------------------------------------
NAMIBIA                                     [*****]
---------------------------------------------------
NAURU                                       [*****]
---------------------------------------------------
NEPAL                                       [*****]
---------------------------------------------------
NETHERLANDS - LAND LINE                     [*****]
---------------------------------------------------
NETHERLANDS-MOBILE                          [*****]
---------------------------------------------------
NETHERLANDS ANTILLES                        [*****]
---------------------------------------------------
NEW CALEDONIA                               [*****]
---------------------------------------------------
NEW ZEALAND-LAND LINE                       [*****]
---------------------------------------------------
NEW ZEALAND-MOBILE                          [*****]
---------------------------------------------------
NICARAGUA                                   [*****]
---------------------------------------------------
NIGER                                       [*****]
---------------------------------------------------
NIGERIA                                     [*****]
---------------------------------------------------
NIUE ISLAND                                 [*****]
---------------------------------------------------
NORTH KOREA                                 [*****]
---------------------------------------------------
NORWAY-LAND LINE                            [*****]
---------------------------------------------------
NORWAY-MOBILE                               [*****]
---------------------------------------------------
OMAN                                        [*****]
---------------------------------------------------
PAKISTAN-LAND LINE                          [*****]
---------------------------------------------------
PAKISTAN-MOBILE                             [*****]
---------------------------------------------------
PALAU                                       [*****]
---------------------------------------------------
PANAMA-LAND LINE                            [*****]
---------------------------------------------------
PANAMA-MOBILE                               [*****]
---------------------------------------------------
PAPUA NEW GUINEA                            [*****]
---------------------------------------------------
PARAGUAY                                    [*****]
---------------------------------------------------
PERU-LAND LINE                              [*****]
---------------------------------------------------
PERU-MOBILE                                 [*****]
---------------------------------------------------
PHILIPPINES-LAND LINE                       [*****]
---------------------------------------------------
PHILIPPINES-MOBILE                          [*****]
---------------------------------------------------
POLAND-LAND LINE                            [*****]
---------------------------------------------------
POLAND-MOBILE                               [*****]
---------------------------------------------------
PORTUGAL-LAND LINE                          [*****]
---------------------------------------------------
PORTUGAL-MOBILE                             [*****]
---------------------------------------------------
</TABLE>

WHOLESALE OPERATOR SERVICES PRICING                                       PAGE 6

<PAGE>

MCI WORLDCOM                                                        CONFIDENTIAL

SCHEDULE OS-A
OPERATOR SERVICES INTERNATIONAL TERMINATION RATES

<TABLE>
<CAPTION>
      COUNTRY                                RATES
---------------------------------------------------
<S>                                         <C>
---------------------------------------------------
QATAR                                       [*****]
---------------------------------------------------
REUNION ISLAND                              [*****]
---------------------------------------------------
ROMANIA                                     [*****]
---------------------------------------------------
RUSSIA                                      [*****]
---------------------------------------------------
RWANDA                                      [*****]
---------------------------------------------------
SAN MARINO                                  [*****]
---------------------------------------------------
SAO TOME                                    [*****]
---------------------------------------------------
SAUDI ARABIA                                [*****]
---------------------------------------------------
SENEGAL                                     [*****]
---------------------------------------------------
SEYCHELLES                                  [*****]
---------------------------------------------------
SIERRA LEONE                                [*****]
---------------------------------------------------
SINGAPORE-LAND LINE                         [*****]
---------------------------------------------------
SINGAPORE-MOBILE                            [*****]
---------------------------------------------------
SLOVAKIA                                    [*****]
---------------------------------------------------
SLOVENIA-LAND LINE                          [*****]
---------------------------------------------------
SLOVENIA-MOBILE                             [*****]
---------------------------------------------------
SOLOMON ISLANDS                             [*****]
---------------------------------------------------
SOMALIA                                     [*****]
---------------------------------------------------
SOUTH AFRICA-LAND LINE                      [*****]
---------------------------------------------------
SOUTH AFRICA-MOBILE                         [*****]
---------------------------------------------------
SOUTH KOREA-LAND LINE                       [*****]
---------------------------------------------------
SOUTH KOREA-MOBILE                          [*****]
---------------------------------------------------
SPAIN - LAND LINE                           [*****]
---------------------------------------------------
SPAIN-MOBILE                                [*****]
---------------------------------------------------
SRI LANKA                                   [*****]
---------------------------------------------------
ST HELENA                                   [*****]
---------------------------------------------------
ST KITTS                                    [*****]
---------------------------------------------------
ST LUCIA                                    [*****]
---------------------------------------------------
ST PIERRE & MIQUELON                        [*****]
---------------------------------------------------
ST VINCENT & GRENADINES                     [*****]
---------------------------------------------------
SUDAN                                       [*****]
---------------------------------------------------
SURINAME                                    [*****]
---------------------------------------------------
SWAZILAND                                   [*****]
---------------------------------------------------
SWEDEN - LAND LINE                          [*****]
---------------------------------------------------
SWEDEN-MOBILE                               [*****]
---------------------------------------------------
SWITZERLAND - LAND LINE                     [*****]
---------------------------------------------------
SWITZERLAND-MOBILE                          [*****]
---------------------------------------------------
SYRIA                                       [*****]
---------------------------------------------------
TAIWAN-LAND LINE                            [*****]
---------------------------------------------------
TAIWAN-MOBILE                               [*****]
---------------------------------------------------
TANZANIA                                    [*****]
---------------------------------------------------
THAILAND                                    [*****]
---------------------------------------------------
TOGO                                        [*****]
---------------------------------------------------
TONGA ISLANDS                               [*****]
---------------------------------------------------
TRINIDAD & TOBAGO                           [*****]
---------------------------------------------------
TUNISIA                                     [*****]
---------------------------------------------------
TURKEY                                      [*****]
---------------------------------------------------
TURKMENISTAN                                [*****]
---------------------------------------------------
TURKS & CAICOS ISLANDS                      [*****]
---------------------------------------------------
TUVALU                                      [*****]
---------------------------------------------------
</TABLE>

WHOLESALE OPERATOR SERVICES PRICING                                       PAGE 7








<PAGE>

MCI WORLDCOM                                                        CONFIDENTIAL

SCHEDULE OS-A
OPERATOR SERVICES INTERNATIONAL TERMINATION RATES

<TABLE>
<CAPTION>
      COUNTRY                                RATES
---------------------------------------------------
<S>                                         <C>
UGANDA                                      [*****]
---------------------------------------------------
UKRAINE                                     [*****]
---------------------------------------------------
UNITED ARAB EMIRATES                        [*****]
---------------------------------------------------
UNITED KINGDOM - LAND LINE                  [*****]
---------------------------------------------------
UNITED KINGDOM-MOBILE                       [*****]
---------------------------------------------------
URUGUAY                                     [*****]
---------------------------------------------------
UZBEKISTAN                                  [*****]
---------------------------------------------------
VANUATU                                     [*****]
---------------------------------------------------
VENEZUELA-LAND LINE                         [*****]
---------------------------------------------------
VENEZUELA-MOBILE                            [*****]
---------------------------------------------------
VIETNAM-LAND LINE                           [*****]
---------------------------------------------------
VIETNAM-MOBILE                              [*****]
---------------------------------------------------
WALLIS & FUTUNA                             [*****]
---------------------------------------------------
WESTERN SAMOA                               [*****]
---------------------------------------------------
YEMEN                                       [*****]
---------------------------------------------------
YUGOSLAVIA                                  [*****]
---------------------------------------------------
ZAIRE                                       [*****]
---------------------------------------------------
ZAMBIA                                      [*****]
---------------------------------------------------
ZIMBABWE                                    [*****]
</TABLE>

WHOLESALE OPERATOR SERVICES PRICING                                       PAGE 8

<PAGE>

SCHEDULE OS-B
OPERATOR SERVICES TOLL FREE ORIGINATION
LEC Based Interstate

<TABLE>
<CAPTION>
                                        ATF                                           ATF
               LEC                      BASE                    LEC                   BASE
GROUP #        GROUP                    RATE        GROUP #    GROUP                  RATE
-------------------------------------------------------------------------------------------
<S>        <C>                        <C>           <C>       <C>                   <C>
   1       AMERITECH                  [*****]          14     GTE 4                 [*****]
-------------------------------------------------------------------------------------------
   2       AMERITECH -IL              [*****]          15     GTE 5                 [*****]
-------------------------------------------------------------------------------------------
   3       BELL ATLANTIC              [*****]          16     NECA 1                [*****]
-------------------------------------------------------------------------------------------
   4       BELL SOUTH                 [*****]          17     NECA 2                [*****]
-------------------------------------------------------------------------------------------
   5       NYNEX                      [*****]          18     NECA 3                [*****]
-------------------------------------------------------------------------------------------
   6       NYNEX LATA 132             [*****]          19     NECA 4                [*****]
-------------------------------------------------------------------------------------------
   7       PAC BELL - CA              [*****]          20     ALIANT                [*****]
-------------------------------------------------------------------------------------------
   8       PAC BELL - NV              [*****]          21     CENTEL                [*****]
-------------------------------------------------------------------------------------------
   9       SWB                        [*****]          22     CONTEL 1              [*****]
-------------------------------------------------------------------------------------------
  10       US WEST                    [*****]          23     CONTEL 2              [*****]
-------------------------------------------------------------------------------------------
  11       GTE 1                      [*****]          24     SNET*                 [*****]
-------------------------------------------------------------------------------------------
  12       GTE 2                      [*****]          25     UNITED 1              [*****]
-------------------------------------------------------------------------------------------
  13       GTE 3                      [*****]          26     UNITED 2              [*****]
-------------------------------------------------------------------------------------------
  27       UNITED 3                   [*****]          27     UNITED 3              [*****]
-------------------------------------------------------------------------------------------
  28       OTHER**                    [*****]          28     OTHER**               [*****]
-------------------------------------------------------------------------------------------
</TABLE>

GTE 1 - FL, CA, MN
GTE 2- TX, MO, VA, WA
GTE 3-IL, MI, PA, NM, OK
GTE 4-KY, NC, NE, IN, AL, WI, OR, OH, SC
GTE 5-ID, AR, IA

CONTEL 1 - VA, IN, MN, KY, SC, AR, NC, MO, AL, AZ
CONTEL 2 - NM, TX, WA, IA, PA, IL, CA


NECA I - MN, AL, TX, NE, VA, LA, IL, NV, WI, CT, MA, FL, IN, MD, NC, OH, PA, SC,
         TN, NY
NECA 2- WV, KY, IA, GA, MS, MO, ME, OR, MI, CO, MI, WY, VT, NH
NECA 3 - SD, NM, ND, WA, OK, KS, AR, CA
NECA 4 - ID, UT, AZ

UNITED 1 - FL, NC, TN, VA, SC, PA, NJ
UNITED 2 - OR, WA, OH, IN
UNITED 3 - NE, MN, MO, KS, TX

-        Toll Free Interstate traffic must terminate via dedicated access from
         an MCI WorldCom point of presence to a Customer-owned and operated
         location.

-        Rates apply only for origination in contiguous U.S.

-        Above rates do not include SIMS (Service Management System)
         pass-through charges.

MCI WORLDCOM WHOLESALE SERVICES                                     CONFIDENTIAL

<PAGE>

OPERATOR SERVICES TOLL FREE ORIGINATION
INTRASTATE

<TABLE>
<CAPTION>
   STATE                       ATF RATE             STATE                      ATF RATE
---------------------------------------------------------------------------------------
<S>                            <C>              <C>                            <C>
Alabama                        $[*****]         Nebraska                       $[*****]
Arizona                        $[*****]         Nevada                         $[*****]
Arkansas                       $[*****]         New Hampshire                  $[*****]
California                     $[*****]         New Jersey                     $[*****]
Colorado                       $[*****]         New Mexico                     $[*****]
Connecticut                    $[*****]         New York                       $[*****]
Delaware                       $[*****]         North Carolina                 $[*****]
Florida                        $[*****]         North Dakota                   $[*****]
Georgia                        $[*****]         Ohio                           $[*****]
Idaho                          $[*****]         Oklahoma                       $[*****]
Illinois                       $[*****]         Oregon                         $[*****]
Indiana                        $[*****]         Pennsylvania                   $[*****]
Iowa                           $[*****]         Rhode Island                   $[*****]
Kansas                         $[*****]         South Carolina                 $[*****]
Kentucky                       $[*****]         South Dakota                   $[*****]
Louisiana                      $[*****]         Tennessee                      $[*****]
Maine                          $[*****]         Texas                          $[*****]
Maryland                       $[*****]         Utah                           $[*****]
Massachusetts                  $[*****]         Vermont                        $[*****]
Michigan                       $[*****]         Virginia                       $[*****]
Minnesota                      $[*****]         Washington                     $[*****]
Mississippi                    $[*****]         West Virginia                  $[*****]
Missouri                       $[*****]         Wisconsin                      $[*****]
Montana                        $[*****]         Wyoming                        $[*****]
</TABLE>

TO U.S. MAINLAND FROM

<TABLE>
<CAPTION>
                                PEAK       OFF-PEAK
---------------------------------------------------
<S>                           <C>          <C>
Alaska                        $[*****]     $[*****]
---------------------------------------------------
Puerto Rico                   $[*****]     $[*****]
---------------------------------------------------
U.S. Virgin Islands           $[*****]     $[*****]
---------------------------------------------------
Hawaii                        $[*****]     $[*****]
---------------------------------------------------
Guam                          $[*****]     $[*****]
---------------------------------------------------
Saipan                        $[*****]     $[*****]
---------------------------------------------------
American Samoa                $[*****]     $[*****]
---------------------------------------------------
</TABLE>

WHOLESALE OPERATOR SERVICES                                         CONFIDENTIAL

<PAGE>

                       MCI WORLDCOM NETWORK SERVICES, INC.

                ATTACHMENT FOR CARRIER IDENTIFICATION CODE (CIC)
                              TRANSLATION SERVICES

         This ATTACHMENT FOR CARRIER IDENTIFICATION CODE (CIC) TRANSLATION
SERVICES are made by and between MCI WORLDCOM Network Services, Inc. ("MCI
WORLDCOM") and Valor Telecommunications Enterprises, L.L.C. ("CUSTOMER") and are
a part of their Telecommunications Services Agreement for Switched Services.
Capitalized terms not defined herein shall have the meaning ascribed to them in
the TSA, the PET or the applicable Attachment(s).

         Customer owns carrier identification code 5971 along with Automated
Customer Name and Address VAU (ACNA) (collectively, "CUSTOMERS CIC"). In order
to effectively manage the processing of primary interexchange carder ("PIC")
designations with respect to Customers CIC, Customer desires to "pic" its end
users ("END USERS") to Customer's CIC and then have Customer's CIC translated to
MCI WorldCom's trunk groups ("MCI WORLDCOM'S TRUNK GROUPS"). MCI WorldCom agrees
to direct the local exchange carriers ("LECS") on a local access transport area
("LATA") by LATA basis with respect to each specific LEC to translate Customer's
CIC to MCI WorldCom's Trunk Groups in accordance with the terms and conditions
contained herein. MCI WorldCom also agrees to allow Customer to directly handle
PIC order processing for its End Users associated with Customer's CIC, or upon
request by Customer, MCI WorldCom will directly handle PIC order processing on
Customers behalf. Each of the parties hereto agrees to take such further actions
and execute, deliver and file such agreements, documents or instruments as the
other party to this Attachment may reasonably request or require in order to
carry out and effectuate the transactions contemplated by this Attachment.

I.       CIC TRANSLATION PROCESS.

         (A)      TRANSLATION BY MCI WORLDCOM: MCI WorldCom shall perform all
         services related to translating Customer's CIC; provided, however, MCI
         WorldCom may, at its option, refuse to translate Customer's CIC for 900
         Services. Provided, all specific Customer requests for CIC translation
         under this CIC Translation Agreement must be approved by MCI WorldCom.
         Provided, further, Customer acknowledges that MCI WorldCom's
         obligations described hereunder will only remain in effect as long as
         the TSA is in effect. All usage charges ("USAGE CHARGES") relative to
         End Users' traffic which is attributable to Customer's CIC and
         transported by MCI WorldCom must be billed directly to Customer. At
         least thirty (30) days prior to the initial translation in each LATA,
         Customer agrees to provide MCI WorldCom with the number of existing End
         Users, if any, and the volume of traffic associated with such End Users
         within each tandem in each LATA for which Customer is requesting
         translation. Upon Customer's written request for translations and
         identification of the tandems to be translated (as may be amended from
         time to time by Customer), MCI WorldCom shall use reasonable efforts
         under the circumstances to ensure that Customer's CIC is promptly
         translated at LEC tandems (i.e., all subtending equal access end
         offices), to MCI WorldCom's Trunk Groups for Feature Group D access
         services in accordance with such request. Customer acknowledges that
         all of Customer's traffic associated with each End User (e.g., 1+, 0+,
         0-, etc.) must be directed to MCI WorldCom's Trunk Groups. Provided,
         however, that

                                   Page 1 of 5
                                  CONFIDENTIAL

<PAGE>

         MCI WorldCom's obligation as described herein will not apply if the
         traffic derived from Customer's CIC is disruptive to or adversely
         affects the MCI WorldCom network as determined by MCI WorldCom, in its
         sole discretion, or the procedures set forth in Subsection 2(A)(4)
         below are not followed by Customer resulting in a network blockage or
         disruption on the MCI WorldCom network from traffic derived from
         Customer's CIC. In the event of a network blockage, MCI WorldCom shall
         provide Customer with prompt written notice of any charges MCI WorldCom
         has incurred from other carriers for the termination of such traffic
         which MCI WorldCom would not have otherwise incurred and Customer
         agrees to reimburse MCI WorldCom for the full amount of such charges
         within (10) days of receipt of such notice. Prior to the termination or
         expiration of the Service Term, MCI WorldCom shall not effect or
         process translation(s) of Customers CIC without the prior request or
         consent of Customer. Nothing contained in this Attachment will be
         construed to require MCI WorldCom to establish or maintain service with
         respect to any particular LEC.

         (B)      LETTER(S) OF AGENCY: Customer and MCI WorldCom shall execute
         letter(s) of agency (LOA) in a form substantially similar to Exhibit
         "A" attached hereto and/or such other document(s) (e.g., shared
         services agreement, etc.) as may be required by the LECs (collectively,
         the "AUTHORIZATIONS") to effect the translations contemplated herein.
         The Authorizations shall grant MCI WorldCom the authority to order
         changes in and maintenance of access services (i.e., Feature Group D
         access) which the LECs may provide in connection with Customer's CIC
         including, without limitation, the irrevocable authority to disconnect
         or rearrange such access services and/or block or redirect traffic
         derived from Customer's CIC away from the MCI WorldCom network. MCI
         WorldCom and Customer agree that such Letter(s) of Agency may require
         modification in order to accommodate individual LEC requirements.

         (C)      CHANGE IN CARRIER: In the event Customer desires to change its
         long distance service provider and/or translate Customer's CIC to
         another carrier, in order to allow MCI WorldCom to issue a proper
         disconnect notice to the applicable LEC and to insure Usage Charges (as
         defined in Subsection 1(A) above) are billed to the correct party,
         Customer agrees to notify MCI WorldCom in writing at least thirty (30)
         days prior to such change (the "CARRIER CHANGE EFFECTIVE DATE"). The
         notice provided to MCI WorldCom as described herein shall identify all
         tandems in which a change of carriers will occur. Further, Customer
         agrees to provide MCI WorldCom with an appropriate LOA sufficient to
         allow MCI WorldCom to deal directly with the LECs with respect to the
         timing of billing changes associated with such carrier changes,
         provided, however, Customer shall be responsible for all Usage Charges
         following any such change of carriers. Customer acknowledges that if it
         changes its long distance services provider and/or translates
         Customer's CIC to another carrier, such change or translation must be
         effective with respect to all tandems in a LATA simultaneously.

         (D)      CIC COST; PAYMENT TERMS: ALL THIRD PARTY COSTS ASSOCIATED WITH
         ENSURING THAT CUSTOMER'S CIC IS TRANSLATED SHALL BE BORNE BY CUSTOMER.
         PRIOR TO TRANSLATING CUSTOMERS CIC WITH ANY LEC, CUSTOMER AGREES TO
         SUBMIT TO MCI WORLDCOM A COMPLETE AND ACCURATE CIC TRANSLATION ORDER
         FORM SUPPLIED BY MCI WORLDCOM

                                   Page 2 of 5
                                  CONFIDENTIAL

<PAGE>

         (THE "CIC ORDER"). UPON RECEIPT OF THE CIC ORDER, MCI WORLDCOM WILL
         NOTIFY CUSTOMER OF THE COSTS ASSOCIATED WITH SUCH CIC ORDER WHICH SHALL
         INCLUDE ALL LEC COSTS (THE "LEC CHARGE") AS WELL AS AN ADMINISTRATIVE
         FEE (THE "ADMINISTRATIVE CHARGE") EQUAL TO $200 PER TANDEM (THE LEC
         CHARGE AND ADMINISTRATIVE CHARGE ARE COLLECTIVELY REFERRED TO AS THE
         "CIC COST") AND SUCH CIC COST WILL BE PAID BY CUSTOMER AS DESCRIBED
         BELOW; PROVIDED, THE LEC CHARGE ASSOCIATED WITH EFFECTING AND
         MAINTAINING (IF APPLICABLE) SUCH TRANSLATION SHALL NOT EXCEED THE
         PREVAILING CHARGES OF SUCH LEC AS WOULD OTHERWISE BE PAID DIRECTLY BY
         CUSTOMER FOR THE RELEVANT SERVICE:

                  (1)      IF THE CIC COST IS EQUAL TO OR GREATER THAN $[*****]
                  CUSTOMER AGREES TO PAY (I) [*****] WITHIN THIRTY (30) DAYS
                  FOLLOWING RECEIPT OF AN INVOICE SETTING FORTH THE AMOUNT OF
                  THE ADMINISTRATIVE CHARGE (THE "FIRST INVOICE"), (II) [*****]
                  OF THE LEC CHARGE (THE "INITIAL PAYMENT") WITHIN THIRTY (30)
                  DAYS FOLLOWING RECEIPT OF AN INVOICE FROM MCI WORLDCOM FOR
                  SUCH INITIAL PAYMENT, WHICH INVOICE WILL BE SENT BY MCI
                  WORLDCOM NO EARLIER THAN NINETY (90) DAYS FOLLOWING CUSTOMERS
                  RECEIPT OF THE FIRST INVOICE, AND (III) [*****] OF THE LEC
                  CHARGE (THE "FINAL PAYMENT") WITHIN THIRTY (30) DAYS FOLLOWING
                  RECEIPT OF AN INVOICE FROM MCI WORLDCOM FOR SUCH FINAL
                  PAYMENT, WHICH INVOICE WILL BE SENT BY MCI WORLDCOM NO EARLIER
                  THAN ONE HUNDRED AND EIGHTY (180) DAYS FOLLOWING CUSTOMERS
                  RECEIPT OF THE FIRST INVOICE.

                  (2)      IF THE CIC COST IS LESS THAN CUSTOMER AGREES TO PAY
                  [*****] WITHIN THIRTY (30) DAYS FOLLOWING RECEIPT OF THE
                  INVOICE FROM MCI WORLDCOM.

                  (3)      IN THE EVENT CUSTOMER REQUESTS EXPEDITIOUS SERVICE
                  HEREUNDER OR OTHER SERVICES FOR WHICH MCI WORLDCOM IS ASSESSED
                  ADDITIONAL CHARGES IN CONNECTION WITH SUCH CIC TRANSLATION,
                  MCI WORLDCOM MAY CONDITION SUCH REQUEST UPON CUSTOMER'S
                  PAYMENT TO MCI WORLDCOM OF ANY ADDITIONAL CHARGES ASSESSED BY
                  ANY THIRD PARTY.

                  (4)      Customer's Switched Services Revenue will not include
                  the CIC Costs described in this Attachment.

         (E)      CANCELLATION CHARGE: If at any time Customer cancels a CIC
         Order, Customer agrees to pay MCI WorldCom a cancellation charge (the
         "CIC TRANSLATION CANCELLATION CHARGE") equal to the amount of the
         entire CIC Cost described in Subsection (D) above. The CIC Translation
         Cancellation Charge will be invoiced in accordance with Subparts (1) or
         (2) above, as applicable. The parties acknowledge that in the event
         Customer cancels a CIC Order, the damages to MCI WorldCom will be
         difficult, in not impossible, to determine. The CIC Translation
         Cancellation Charge is intended, therefore, to establish liquidated
         damages payable by Customer to MCI WorldCom, and is not intended as a
         penalty of any kind.

                                   Page 3 of 5
                                  CONFIDENTIAL

<PAGE>

II.      PIC ORDER PROCESSING.

         (A)      PROCESSING: Either Customer or MCI WorldCom may handle
         Customer's PIC order processing on Customers behalf for Customer's end
         users in any specific area mutually agreed to by the parties. In the
         event Customer directly handles its own PIC order processing, (i) MCI
         WorldCom agrees to provide Customer with reasonable assistance in
         performing its PIC order processing obligations as stated herein, (ii)
         Customer shall reimburse MCI WorldCom for all third party costs
         incurred by MCI WorldCom in handling such PIC order processing, and
         (iii) Customer shall be directly responsible for processing functions,
         including but not limited to:

                  (1)      The provision of necessary personnel and systems.

                  (2)      The direct transmittal of PIC orders to the LECs.

                  (3)      Dispute resolution of PIC order processing with the
                  LECs attributable to Customers CIC.

                  (4)      Customer agrees to provide notice to MCI WorldCom, in
                  a format acceptable to MCI WorldCom, of all PIC processing
                  orders for Customers CIC prior to transmitting such orders to
                  the LECs. MCI WorldCom has the right in its sole discretion to
                  reject or cause Customer to delay the transmittal of any order
                  on a tandem by tandem basis. Upon MCI WorldCom's request,
                  Customer agrees to delay (until such time as specified by MCI
                  WorldCom) the processing of PIC transmittals to the LECs due
                  to inadequate network capacity. Further, in the event order(s)
                  are rejected by MCI WorldCom, Customer agrees not to submit
                  such order(s) to the LECs.

                  (5)      The contacting of the appropriate LEC's business
                  office to establish required parameters relative to Customer's
                  CIC (e.g., whether Customers network is an "open network" or
                  "closed network", how Customer desires to handle direct
                  contacts by End Users, etc.)

         (B)      LETTER OF AGENCY: In the event MCI WorldCom handles Customer's
         PIC order processing, Customer agrees to execute an LOA in a form
         substantially similar to Exhibit "B" attached hereto or such other
         documents as may be required by the LECs to effect the PIC order
         processing and give MCI WorldCom the right to obtain information from
         the appropriate LEC regarding Customer (i.e., data gather) and to
         provide the LECs with an appropriate LOA designating MCI WorldCom as
         its agent for purposes of handling Customer's PIC order processing. MCI
         WorldCom agrees to provide status reports to Customer concerning such
         PIC order processing. Customer shall be solely responsible for
         resolving disputes with the LECs attributable to Customer's CIC.
         Further, Customer shall reimburse MCI WorldCom for all third party
         costs incurred by MCI WorldCom in handling such PIC order processing.

         (C)      NETWORK BLOCKAGE: In the event Customer fails to follow the
         procedures set forth in Subsection 2(A)(4) above are not followed and,
         as a result, a network disruption

                                   Page 4 of 5
                                  CONFIDENTIAL

<PAGE>

         or blockage occurs on the MCI WorldCom Network from traffic derived
         from Customer's CIC, then to the extent that MCI WorldCom reconfigures
         its access arrangements to alleviate such disruption or blockage and as
         a result MCI WorldCom incurs charges from other carriers for the
         termination of traffic, which it would not have otherwise incurred, MCI
         WorldCom shall provide prompt written notice to Customer of such
         charges and Customer agrees to reimburse MCI WorldCom for the full
         amount of such charges within (10) days of receipt of such notice.

         IN WITNESS WHEREOF, authorized parties on behalf of their respective
entities have initialed this Attachment for CARRIER IDENTIFICATION CODE (CIC)
TRANSLATION Services as of the date shown below.

VALOR TELECOMMUNICATIONS                            MCI WORLDCOM NETWORK
ENTERPRISES, L.L.C.                                 SERVICES, INC.

Customer Initials MP                                MCI WorldCom's Initials JF

Date: 9/30/00                                       Date: 10/10/00

                                   Page 5 of 5
                                  CONFIDENTIAL

<PAGE>

                      CIC TRANSLATIONS SERVICES - EXHIBIT A

                                LETTER OF AGENCY

                                                               ___________, 20__

To _______________________________(Local Exchange Telephone Company) and Whom It
May Concern:

         Valor Telecommunications Enterprises, L.L.C. ("CUSTOMER") hereby allows
MCI WorldCom Network Services, Inc. to initiate orders for telecommunication
services relating to translating its Carrier identification Code 5971
(hereinafter referred to as the "CIC") to MCI WorldCom's CIC Code 555 for both
Intra/Inter LATA service.

         This includes without limitation, initial orders, add-on orders,
disconnect orders, and any rearrangements thereof, relative to Feature Group D
access only.

         Customer grants MCI WorldCom the perpetual and irrevocable authority to
disconnect or rearrange such access services and/or block or redirect traffic
derived from the CIC away from the MCI WorldCom Network.

         MCI WorldCom assumes responsibility for the billing of all charges
generated with the MCI WorldCom service orders to add the above CIC(s) and
LATA(s). MCI WorldCom also assumes responsibility for all monthly usage charges
for the above listed CIC(s) and LATA(s) for all traffic transported to MCI
WorldCom.

         This letter of agency also directs you to remit all bills relating to
your access services ordered pursuant to this letter of agency to:

                           MCI WorldCom Network Services, Inc.
                           Line Cost Department, Mail Drop 3.1-1071
                           P.O. Box 21348
                           Tulsa, Oklahoma 74121

         You may deal directly with MCI WorldCom on all matters pertaining to
said telecommunications services and should follow its instructions with
reference thereto.

         This authorization will remain in effect until you are otherwise
notified by MCI WorldCom, in writing.

Valor Telecommunications                        MCI WorldCom Network
Enterprises, L.L.C.                             Services, Inc.

_________________________________               ________________________________
         (Signature)                                     (Signature)

_________________________________               ________________________________
         (Print Name)                                    (Print Name)

_________________________________               ________________________________
           (Title)                                          (Title)

                                                                     Page 1 of 1

<PAGE>

                      CIC TRANSLATIONS SERVICES - EXHIBIT B

PIC LETTER OF AGENCY

                                                             ____________, 20___

TO LOCAL EXCHANGE TELEPHONE COMPANY AND WHOM IT MAY
CONCERN:

VALOR TELECOMMUNICATIONS ENTERPRISES, L.L.C. ("CUSTOMER") HEREBY AUTHORIZES THE
LOCAL EXCHANGE TELEPHONE COMPANY TO ALLOW WORLDCOM NETWORK SERVICES, INC., TO
PIC AND DATA GATHER ON CUSTOMER CIC CODE 5971, ACNA _________ UNTIL FURTHER
WRITTEN NOTICE.

VALOR TELECOMMUNICATIONS ENTERPRISES, L.L.C.
          (CUSTOMER NAME)

By: _________________________________
             (SIGNATURE)

_____________________________________
             (PRINT NAME)

_____________________________________
                (TITLE)

                                                                     Page 1 of 1

<PAGE>

LETTER OF AGENCY

To Us West:

Valor Telecommunications Enterprises, L.L.C., hereafter CIC Owner desires to use
the facilities of MCI WorldCom, hereafter Facility Owner, for Transmission of
telecommunications services. Facility Owner desires to place orders on behalf of
CIC owner for the following Carrier Identification Code number 5971. Therefore
CIC owner hereby authorizes Facility Owner to initiate orders for
telecommunications services relating to the above listed CIC code(s) for
Facility Owners trunk groups in the following local transport areas (LATAS):

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

This Includes, without limitation initial orders, add-on orders, disconnect
orders and any re-arrangements thereof related to Feature Group D or B access
only. CIC Owner grants Facility Owner the perpetual irrevocable authority to
disconnect or rearrange such access service and or block or redirect traffic
derived from the CIC code(s) listed above in the designated LATAs.

Facility Owner Accepts Usage Charges.  CIC Owner Accepts PICC Billing

Facility Owner assumes responsibility the payment to US WEST of all charges,
recurring and nonrecurring (including service charges and usage charges),
associated with this traffic & billed by US West pursuant to appropriate state
and federal tariffs (excluding Presubscribed Interexchange Carrier Charge(s)
(PICC), and/or orders.

CIC Owner accepts liability of PICC billing. CIC OWNER UNDERSTANDS THAT FAILURE
TO PAY SUCH CHARGES CAN RESULT IN BLOCKING OF ALL TRAFFIC ON CIC(s).

This letter of agency also authorizes you to remit all bills relate to

US WEST Recurring/Non-recurring              PICC billing to;
And usage charges to:

Facility Owner:__________________________    CIC Owner__________________________
Contract Name:___________________________    Contact Name_______________________
Telephone No:____________________________    Telephone No:______________________
Address:_________________________________    Address:___________________________

US WEST is hereby released from any and all liability for making pertinent
information available to Facility Owner and the following instructions with
respect to any changes to or maintenance in the telecommunications service
listed. This authorization shall remain in force until modified or rescinded by
CIC Owner.

This letter also rescinds any previous authorizations for the above listed CICs
to be carried by any other Carries network in the same LATAs listed above and
attest to the fact that notification has been given to the previous facility
provider and traffic was previously on another network it is being removed from
theft network in the LATAs noted above.

BY:_________________________________
Facility Owner:_____________________
Signed Date:________________________

By:_________________________________
CIC Owner:__________________________
Signed Date:________________________

                                                                     Page 1 of 1

<PAGE>

                       MCI WORLDCOM NETWORK SERVICES, INC.

                       ATTACHMENT FOR CALLING CARD SERVICE

         This ATTACHMENT FOR CALLING CARD SERVICE is made by and between Valor
Telecommunications Enterprises, L.L.C. ("CUSTOMER") and MCI WORLDCOM Network
Services, Inc. (successor in interest to WorldCom Network Services, Inc.)("MCI
WORLDCOM") and is a part of their Telecommunications Services Agreement for
Switched Services. Capitalized terms not defined herein shall have the meaning
ascribed to them in the TSA, the PET, the applicable Attachment(s) or the Tariff
(as defined below), whichever is applicable. NOTE: ANY MODIFICATIONS, ADDITIONS
OR DELETIONS FROM THIS ATTACHMENT WILL NOT BE EFFECTIVE UNLESS SPECIFICALLY SET
FORTH IN THE PET.

         During the Service Term of the Agreement, MCI WorldCom will provide
"CALLING CARD SERVICE" which is accessed only by dialing the unique toll free
access number assigned by MCI WorldCom to Customer. With respect to
International Origination CALLING CARD Service and applicable Star (*) Features,
this Attachment incorporates by reference the terms of MCI Tariff FCC No. 1 (the
"TARIFF"), which may be modified from time to time by MCI WorldCom in accordance
with law and thereby affect the Services furnished Customer hereunder, except
that the terms and conditions contained in the TSA, the PET or this Attachment
shall supplement or, to the extent inconsistent, supersede the Tariff terms and
conditions. For purposes of this Attachment, references to "MCI FEATURE CARD
Service (Option T)" or "Connections Card Service" will be deemed to refer to
"CALLING CARD Service".

I.       CALLING CARD SERVICE CHARGES.

         (A)      For purposes of this Attachment, Customer's "SWITCHED SERVICES
         REVENUE" will be comprised of (i) Customer's gross (i.e., prior to the
         application of discounts) measured and per call CALLING CARD Service
         charges described below (i.e., interstate, intrastate and
         international), (ii) Customer's Calling Card Service Surcharges
         described below, and (iii) Customers Calling Card Feature Service
         charges described below. Further, for purposes of this Attachment,
         "U.S." refers to the 48 contiguous United States and "ECC" refers to
         Alaska, Hawaii, Puerto Rico and the United States Virgin Islands.

         (B)      Rates Per Minute.

                  (i)      INTERSTATE

<TABLE>
<CAPTION>
JURISDICTION                                     RATE PER MINUTE
------------------------------------------------------------------
<S>                                             <C>
INTERSTATE
(GRAPHIC) Within the U.S. and ECC               $[*****] per minute
------------------------------------------------------------------
</TABLE>

                  (ii)     INTRASTATE (NOT SUBJECT TO DISCOUNT).

<TABLE>
<CAPTION>
    STATE                      RATE         STATE                     RATE
----------------------------------------------------------------------------
<S>                          <C>        <C>                         <C>
ALABAMA                      $[*****]   NEBRASKA                    $[*****]
----------------------------------------------------------------------------
ARIZONA                      $[*****]   NEVADA                      $[*****]
----------------------------------------------------------------------------
ARKANSAS                     $[*****]   NEW HAMPSHIRE               $[*****]
----------------------------------------------------------------------------
</TABLE>

                                   Page 1 of 7
                                  CONFIDENTIAL

<PAGE>

<TABLE>
<CAPTION>
    STATE                      RATE         STATE                     RATE
----------------------------------------------------------------------------
<S>                          <C>        <C>                         <C>
CALIFORNIA                   $[*****]   NEW JERSEY                  $[*****]
----------------------------------------------------------------------------
COLORADO                     $[*****]   NEW MEXICO                  $[*****]
----------------------------------------------------------------------------
CONNECTICUT                  $[*****]   NEW YORK                    $[*****]
----------------------------------------------------------------------------
DELAWARE                     $[*****]   NORTH CAROLINA              $[*****]
----------------------------------------------------------------------------
FLORIDA                      $[*****]   NORTH DAKOTA                $[*****]
----------------------------------------------------------------------------
GEORGIA                      $[*****]   OHIO                        $[*****]
----------------------------------------------------------------------------
IDAHO                        $[*****]   OKLAHOMA                    $[*****]
----------------------------------------------------------------------------
ILLINOIS                     $[*****]   OREGON                      $[*****]
----------------------------------------------------------------------------
INDIANA                      $[*****]   PENNSYLVANIA                $[*****]
----------------------------------------------------------------------------
IOWA                         $[*****]   RHODE ISLAND                $[*****]
----------------------------------------------------------------------------
KANSAS                       $[*****]   SOUTH CAROLINA              $[*****]
----------------------------------------------------------------------------
KENTUCKY                     $[*****]   SOUTH DAKOTA                $[*****]
----------------------------------------------------------------------------
LOUISIANA                    $[*****]   TENNESSEE                   $[*****]
----------------------------------------------------------------------------
MAINE                        $[*****]   TEXAS                       $[*****]
----------------------------------------------------------------------------
MARYLAND                     $[*****]   UTAH                        $[*****]
----------------------------------------------------------------------------
MASSACHUSETTS                $[*****]   VERMONT                     $[*****]
----------------------------------------------------------------------------
MICHIGAN                     $[*****]   VIRGINIA                    $[*****]
----------------------------------------------------------------------------
MINNESOTA                    $[*****]   WASHINGTON                  $[*****]
----------------------------------------------------------------------------
MISSISSIPPI                  $[*****]   WEST VIRGINIA               $[*****]
----------------------------------------------------------------------------
MISSOURI                     $[*****]   WISCONSIN                   $[*****]
----------------------------------------------------------------------------
MONTANA                      $[*****]   WYOMING                     $[*****]
----------------------------------------------------------------------------
</TABLE>

                  (iii)    INTERNATIONAL TERMINATION (NOT SUBJECT TO DISCOUNT).

                           SEE Schedule CC-A.

                  (iv)     INTERNATIONAL ORIGINATION TERMINATING IN THE U.S.
                           (NOT SUBJECT TO DISCOUNT).

                           SEE Schedule CC-B.

                  (v)      INTERNATIONAL ORIGINATION TERMINATING IN AN
                           INTERNATIONAL LOCATION (NOT SUBJECT TO DISCOUNT).

                           The rates will be the sum of (x) the applicable
                           International Origination rates set forth on Schedule
                           CC-A, and (y) the applicable International
                           Termination rate set forth on Schedule CC-B.

         (C)      Calls originating in an International Location will be billed
         in sixty (60) second increments and subject to a sixty (60) second
         minimum charge. Calls utilizing Feature Services described in Section
         VII below will be billed in sixty (60) second increments and subject to
         a sixty (60) second minimum charge. All other calls will be billed in
         six (6) second Increments and subject to an eighteen (18) second
         minimum charge.

                                   Page 2 of 7
                                  CONFIDENTIAL

<PAGE>

II.      CREDITS/DISCOUNTS.

         (A)      Commencing with the Effective Date and continuing through the
         end of the Service Term (including any applicable extensions thereto),
         Customers discount percentage for CALLING CARD Service (the "DISCOUNT")
         will be determined under the Discount Schedule shown below based on
         Customer's actual Monthly Revenue for such month. Throughout the
         Service Term, Customer will automatically receive the next higher (or
         lower) Discount when Customers eligible Monthly Revenue (as defined in
         the PET) reaches the next level (or falls below a level).

<TABLE>
<CAPTION>
   MONTHLY REVENUE                          DISCOUNT
   ---------------                          --------
<S>                                         <C>
$[*****]   - $[*****]                       [*****]%
$[*****]   - $[*****]                       [*****]%
$[*****]   - $[*****]                       [*****]%
$[*****]   - $[*****]                       [*****]%
       $[*****]                             [*****]%
</TABLE>

         (B)      The Discount described above is in lieu of any Tariff
         discounts including, without limitation, discounts for MCI Feature Card
         Service available under MCI VIP, MCI VIP Plus, MCI MOD and MCI CAS or
         MCI CAS PLUS Service.

III.     CALLING CARD SERVICE SURCHARGES.

         (A)      The following CALLING CARD Service surcharges shall be charged
         per call according to the following schedule:

<TABLE>
<CAPTION>
                                                                             Direct
                FROM                                   TO                     Dial
------------------------------------------------------------------------------------
<S>                                   <C>                                   <C>
U.S.                                  U.S.                                  $[*****]
------------------------------------------------------------------------------------
ECC                                   U.S.                                  $[*****]
------------------------------------------------------------------------------------
U.S., ECC                             ECC                                   $[*****]
------------------------------------------------------------------------------------
U.S., ECC                             Canada                                $[*****]
------------------------------------------------------------------------------------
U.S., ECC                             International locations               $[*****]
------------------------------------------------------------------------------------
Canada                                U.S.                                  $[*****]
------------------------------------------------------------------------------------
Canada                                ECC                                   $[*****]
------------------------------------------------------------------------------------
Canada                                International locations (including    $[*****]
                                      Canada)
------------------------------------------------------------------------------------
International locations               U.S., ECC, International locations    $[*****]
------------------------------------------------------------------------------------
U.S. (Payphone)                       Any location                          $[*****]
------------------------------------------------------------------------------------
</TABLE>

IV.      FULFILLMENT.

         If Customer elects to use MCI WorldCom for fulfillment, Customer shall
         pay MCI WorldCom the fulfillment charges associated with Customer's
         usage of CALLING CARD Service, as determined by MCI WorldCom.

                                   Page 3 of 7
                                  CONFIDENTIAL

<PAGE>

V.       SET UP CHARGES.

         Customer agrees to pay $[*****] for every instance of special branding
         (i.e., greeting and/or closing) requested by Customer in connection
         with CALLING CARD Service.

VI.      FRAUD DETECTION PROCEDURES.

         Customer shall be responsible for any and all fraud associated with its
         usage of CALLING CARD Service, except as set forth below:

                  (1)      All calling card calls will be validated by MCI
                  WorldCom to permit only those calls authorized or facilitated
                  by Customer or legitimate card holders. MCI WorldCom will, at
                  the direction of Customer, preclude all calls utilizing
                  expired or terminated calling card numbers compared against an
                  authorized list provided by Customer and MCI WorldCom will be
                  responsible for all fraudulent use, unauthorized use, misuse,
                  or abuse of calling cards occurring after MCI WorldCom
                  receives actual notice of the expiration or termination of a
                  calling card or receives specifically detailed written
                  notification concerning any card which has been lost, stolen,
                  compromised or which Customer has reason to believe is or may
                  be used fraudulently.

                  (2)      In addition, all CALLING CARD Service calls will be
                  monitored by MCI WorldCom for misuse on a twenty four (24)
                  hour a day, seven (7) days a week basis. MCI WorldCom shall
                  establish fraud prevention, detection and minimization
                  procedures so that fraudulent use arising from lost or stolen
                  calling cards and potential disruption to authorized card
                  holders will be minimized.

                  (3)      MCI WorldCom will not hold the Customer responsible
                  for "Service Fraud" (as defined herein) associated with the
                  unauthorized use of an MCI WorldCom CALLING CARD. For purposes
                  of this Attachment, "SERVICE FRAUD" shall consist of
                  unauthorized use of an MCI WorldCom CALLING CARD following the
                  involuntary theft or loss of a card, which was not
                  intentionally facilitated or authorized (either explicitly or
                  implicitly) by Customer or an authorized user. Service Fraud
                  often follows the theft of a wallet, purse or briefcase, or
                  sometimes is the result of "shoulder surfing" (thieves
                  observing/recording authorization codes) which occurs at
                  payphones located in airports, bus terminals, train stations
                  and the like. MCI WorldCom shall not be responsible for losses
                  caused by fraudulent information submitted by a card holder in
                  subscribing for calling card services or for usage which was
                  intentionally facilitated or authorized (either explicitly or
                  implicitly) by an authorized user.

                  (4)      In the event MCI WorldCom is unable to contact
                  Customer of suspected abuse of the CALLING CARD Service, in
                  order to minimize potential abuse, MCI WorldCom may deactivate
                  any calling card which has exceeded established fraud
                  detection parameters or which MCI WorldCom has reason to
                  believe is or

                                   Page 4 of 7
                                  CONFIDENTIAL

<PAGE>

                  may be used fraudulently. In such event MCI WorldCom will have
                  no liability to Customer or any End User in connection with
                  such deactivation or failure to deactivate such calling card.

VII.     FEATURE SERVICES.

         (A)      Customer agrees to pay the charges set forth below with
         respect to the features shown ("FEATURE SERVICES"):

                  (i)      Operator Services

<TABLE>
<CAPTION>
           FEATURE                                             CHARGE
----------------------------------------------------------------------------
<S>                                                       <C>
Direct Connect/Station to Station                         $ [*****] per call
----------------------------------------------------------------------------
Direct Connect/Person to Person                           $ [*****] per call
----------------------------------------------------------------------------
</TABLE>

                  (ii)     Directory Assistance

<TABLE>
<CAPTION>
                     FEATURE                                    CHARGE
-----------------------------------------------------------------------------
<S>                                                       <C>
U.S., ECC                                                 $ [*****] per call
-----------------------------------------------------------------------------
Canada                                                    $ [*****] per call
-----------------------------------------------------------------------------
Australia, Austria, Finland, France, Germany, Mexico,     $ [*****] per call.
New Zealand, Netherlands, Spain, Switzerland, United
Kingdom
-----------------------------------------------------------------------------
All other countries (including 809 area code)             $ [*****] per call
-----------------------------------------------------------------------------
</TABLE>

                  (iii)    Voice News Network for calls within the U.S.:
                  $[*****]  minute

                  (iv)     Conference Calling

<TABLE>
<CAPTION>
               FEATURE                                           CHARGE
--------------------------------------------------------------------------------
<S>                                                     <C>
Set-up Fee                                              $ [*****] per participant
---------------------------------------------------------------------------------
Bridgeport Fee: Within the U.S.                         $ [*****] per minute per
                                                        bridgeport (Weekday*)
                                                        $ [*****] per minute per
                                                        bridgeport (Weekend*)
---------------------------------------------------------------------------------
Bridgeport Fee: Canada                                  $ [*****] per minute per
                                                        bridgeport (Weekday*)
                                                        $ [*****] per minute per
                                                        bridgeport (Weekend*)
---------------------------------------------------------------------------------
Bridgeport Fee: Mexico                                  $ [*****] per minute per
                                                        bridgeport (Weekday*)
                                                        $ [*****] per minute per
                                                        bridgeport (Weekend*)
---------------------------------------------------------------------------------
Bridgeport Fee: International Locations                 SEE Schedule CC-A
                                                        (International Rates)
----------------------------------------------------------------------------------
</TABLE>

*        Weekday: 12:00 midnight CST Monday through 11:59 p.m. CST Friday.

*        Weekend: 12:00 midnight CST Saturday through 11:59 p.m. CST Sunday.

                  (v)      Flex Routing: $[*****] per minute.

                                   Page 5 of 7
                                  CONFIDENTIAL

<PAGE>

                  (vi)     Message Store and Forward

<TABLE>
<CAPTION>
               FEATURE                                         CHARGE
----------------------------------------------------------------------------
<S>                                                     <C>
U.S. to U.S.                                            $ [*****] per minute
----------------------------------------------------------------------------
International locations to U.S.                         $ [*****] per minute
----------------------------------------------------------------------------
U.S. to International locations                         $ [*****] per minute
----------------------------------------------------------------------------
U.S. to Canada, United States Virgin                    $ [*****] per minute
Islands, Puerto Rico
----------------------------------------------------------------------------
International locations to International                $ [*****] per minute
Locations
----------------------------------------------------------------------------
International locations to Canada, United               $ [*****] per minute
States Virgin Islands, Puerto Rico
----------------------------------------------------------------------------
</TABLE>

                  (vii)    Broadcast Messages

<TABLE>
<CAPTION>
               FEATURE                                         CHARGE
----------------------------------------------------------------------------
<S>                                                     <C>
U.S. to U.S. (up to 5 ANIs)                             $ [*****] per minute
----------------------------------------------------------------------------
International locations to U.S. (up to 5                $ [*****] per minute
ANIs)
----------------------------------------------------------------------------
U.S. to U.S. (up to 10 ANIs)                            $ [*****] per minute
----------------------------------------------------------------------------
International locations to U.S. (up to 10               $ [*****] per minute
ANIs)
----------------------------------------------------------------------------
U.S. to U.S. (up to 20 ANIs)                            $ [*****] per minute
----------------------------------------------------------------------------
International locations to U.S. (up to 20               $ [*****] per minute
ANIs)
----------------------------------------------------------------------------
</TABLE>

                  (viii)   Speed Dialing: No Charge

         (B)      The feature charges described in Subsection VII.(A) above will
         be subject to the following discounts based on Customers Feature
         Services Monthly Usage (as defined in Subsection (C) below).

<TABLE>
<CAPTION>
       Feature Service
        Monthly Usage                         Discount
        -------------                         --------
<S>                                           <C>
$    [*****]   - $    [*****]                 $[*****]%
$    [*****]   - $    [*****]                 $[*****]%
$    [*****]   - $    [*****]                 $[*****]%
$    [*****]   - $    [*****]                 $[*****]%
$    [*****]   - $    [*****]                 $[*****]%
$    [*****]   - $    [*****]                 $[*****]%
             $[*****]+                        $[*****]%
</TABLE>

         (C)      "FEATURE SERVICES MONTHLY USAGE" shall mean Customers monthly
         combined recurring and usage charges for Feature Services at the rates
         set forth above not including taxes and surcharges.

                                   Page 6 of 7
                                  CONFIDENTIAL

<PAGE>

         IN WITNESS WHEREOF, authorized parties on behalf of their respective
entities have initialed this Attachment for CALLING CARD Service as of the date
shown below.

VALOR TELECOMMUNICATIONS                           MCI WORLDCOM NETWORK
ENTERPRISES, L.L.C.                                SERVICES, INC.

Customer Initials MP                               MCI WorldCom's Initials JF

Date: 9/30/00                                      Date: 10/10/00


ATTACHMENTS:

         Schedule CC-A = International Termination Rates (U.S. to International
         locations)

         Schedule CC-B = International Origination Rates (International
         locations to U.S.)

                                   Page 7 of 7
                                  CONFIDENTIAL

<PAGE>

                                  Schedule CC-A

                 CALLING CARD INTERNATIONAL TERMINATION RATES
                             US TO INTERNATIONAL

<TABLE>
<CAPTION>
COUNTRY                                            RATE PER MINUTE
------------------------------------------------------------------
<S>                                                <C>
Afghanistan                                            [*****]
------------------------------------------------------------------
Albania                                                [*****]
------------------------------------------------------------------
Algeria                                                [*****]
------------------------------------------------------------------
American Samoa                                         [*****]
------------------------------------------------------------------
Andorra                                                [*****]
------------------------------------------------------------------
Angola                                                 [*****]
------------------------------------------------------------------
Anguilla                                               [*****]
------------------------------------------------------------------
Antarctica                                             [*****]
------------------------------------------------------------------
Antigua                                                [*****]
------------------------------------------------------------------
Argentina                                              [*****]
------------------------------------------------------------------
Armenia                                                [*****]
------------------------------------------------------------------
Aruba                                                  [*****]
------------------------------------------------------------------
Ascension Islands                                      [*****]
------------------------------------------------------------------
Australia                                              [*****]
------------------------------------------------------------------
Austria                                                [*****]
------------------------------------------------------------------
Azerbaijan                                             [*****]
------------------------------------------------------------------
Bahamas                                                [*****]
------------------------------------------------------------------
Bahrain                                                [*****]
------------------------------------------------------------------
Bangladesh                                             [*****]
------------------------------------------------------------------
Barbados                                               [*****]
------------------------------------------------------------------
Belarus                                                [*****]
------------------------------------------------------------------
Belgium                                                [*****]
------------------------------------------------------------------
Belize                                                 [*****]
------------------------------------------------------------------
Benin                                                  [*****]
------------------------------------------------------------------
Bermuda                                                [*****]
------------------------------------------------------------------
Bhutan                                                 [*****]
------------------------------------------------------------------
Bolivia                                                [*****]
------------------------------------------------------------------
Bosnia-Herzegovina                                     [*****]
------------------------------------------------------------------
Botswana                                               [*****]
------------------------------------------------------------------
Br Virgin Islands                                      [*****]
------------------------------------------------------------------
Brazil                                                 [*****]
------------------------------------------------------------------
Brunel                                                 [*****]
------------------------------------------------------------------
Bulgaria                                               [*****]
------------------------------------------------------------------
Burkina Faso                                           [*****]
------------------------------------------------------------------
Burundi                                                [*****]
------------------------------------------------------------------
Cambodia                                               [*****]
------------------------------------------------------------------
Cameroon                                               [*****]
------------------------------------------------------------------
Canada                                                 [*****]
------------------------------------------------------------------
Cape Verde Islands                                     [*****]
------------------------------------------------------------------
Cayman Islands                                         [*****]
------------------------------------------------------------------
Central African Rep                                    [*****]
------------------------------------------------------------------
Chad                                                   [*****]
------------------------------------------------------------------
Chile                                                  [*****]
------------------------------------------------------------------
China                                                  [*****]
------------------------------------------------------------------
Colombia                                               [*****]
------------------------------------------------------------------
</TABLE>

                           MCI WorldCom -- PROPRIETARY
                 Not for use or disclosure outside MCI WorldCom
                         except under written agreement

<PAGE>

                                  Schedule CC-A

<TABLE>
<CAPTION>
     COUNTRY                                       RATE PER MINUTE
------------------------------------------------------------------
<S>                                                <C>
Comoros-Mayotte                                        [*****]
------------------------------------------------------------------
Congo                                                  [*****]
------------------------------------------------------------------
Cook islands                                           [*****]
------------------------------------------------------------------
Costa Rica                                             [*****]
------------------------------------------------------------------
Croatia                                                [*****]
------------------------------------------------------------------
Cuba                                                   [*****]
------------------------------------------------------------------
Cyprus                                                 [*****]
------------------------------------------------------------------
Czech Republic                                         [*****]
------------------------------------------------------------------
Denmark                                                [*****]
------------------------------------------------------------------
Diego Garcia                                           [*****]
------------------------------------------------------------------
Djibouti                                               [*****]
------------------------------------------------------------------
Dominica                                               [*****]
------------------------------------------------------------------
Dominican Republic                                     [*****]
------------------------------------------------------------------
Ecuador                                                [*****]
------------------------------------------------------------------
Egypt                                                  [*****]
------------------------------------------------------------------
El Salvador                                            [*****]
------------------------------------------------------------------
Equatorial Guinea                                      [*****]
------------------------------------------------------------------
Eritrea                                                [*****]
------------------------------------------------------------------
Estonia                                                [*****]
------------------------------------------------------------------
Ethiopia                                               [*****]
------------------------------------------------------------------
Falkland Islands                                       [*****]
------------------------------------------------------------------
Faroe Islands                                          [*****]
------------------------------------------------------------------
Fiji Islands                                           [*****]
------------------------------------------------------------------
Finland                                                [*****]
------------------------------------------------------------------
France                                                 [*****]
------------------------------------------------------------------
French Antilles                                        [*****]
------------------------------------------------------------------
French Guiana                                          [*****]
------------------------------------------------------------------
French Polynesia                                       [*****]
------------------------------------------------------------------
Gabon                                                  [*****]
------------------------------------------------------------------
Gambia                                                 [*****]
------------------------------------------------------------------
Georgia                                                [*****]
------------------------------------------------------------------
Germany                                                [*****]
------------------------------------------------------------------
Ghana                                                  [*****]
------------------------------------------------------------------
Gibraltar                                              [*****]
------------------------------------------------------------------
Greece                                                 [*****]
------------------------------------------------------------------
Greenland                                              [*****]
------------------------------------------------------------------
Grenada                                                [*****]
------------------------------------------------------------------
Guadeloupe                                             [*****]
------------------------------------------------------------------
Guam                                                   [*****]
------------------------------------------------------------------
Guatemala                                              [*****]
------------------------------------------------------------------
Guinea                                                 [*****]
------------------------------------------------------------------
Guinea Bissau                                          [*****]
------------------------------------------------------------------
Guyana                                                 [*****]
------------------------------------------------------------------
Haiti                                                  [*****]
------------------------------------------------------------------
Honduras                                               [*****]
------------------------------------------------------------------
Hong Kong                                              [*****]
------------------------------------------------------------------
Hungary                                                [*****]
------------------------------------------------------------------
Iceland                                                [*****]
------------------------------------------------------------------
India                                                  [*****]
------------------------------------------------------------------
</TABLE>

                          MCI WorldCom -- PROPRIETARY
                 Not for use or disclosure outside MCI WorldCom
                         except under written agreement

<PAGE>

                                  Schedule CC-A

<TABLE>
<CAPTION>
     COUNTRY                                       RATE PER MINUTE
------------------------------------------------------------------
<S>                                                <C>
Indonesia                                              [*****]
------------------------------------------------------------------
Inmarsat Atlantic E                                    [*****]
------------------------------------------------------------------
Inmarsat Atlantic W                                    [*****]
------------------------------------------------------------------
Inmarsat Indian                                        [*****]
------------------------------------------------------------------
Inmarsat Pacific                                       [*****]
------------------------------------------------------------------
Iran                                                   [*****]
------------------------------------------------------------------
Iraq                                                   [*****]
------------------------------------------------------------------
Ireland                                                [*****]
------------------------------------------------------------------
Israel                                                 [*****]
------------------------------------------------------------------
Italy                                                  [*****]
------------------------------------------------------------------
Ivory Coast                                            [*****]
------------------------------------------------------------------
Jamaica                                                [*****]
------------------------------------------------------------------
Japan                                                  [*****]
------------------------------------------------------------------
Jordan                                                 [*****]
------------------------------------------------------------------
Kenya                                                  [*****]
------------------------------------------------------------------
Kiribati                                               [*****]
------------------------------------------------------------------
Korea (North)                                          [*****]
------------------------------------------------------------------
Korea (South)                                          [*****]
------------------------------------------------------------------
Kuwait                                                 [*****]
------------------------------------------------------------------
Kyrgyzstan                                             [*****]
------------------------------------------------------------------
Laos                                                   [*****]
------------------------------------------------------------------
Latvia                                                 [*****]
------------------------------------------------------------------
Lebanon                                                [*****]
------------------------------------------------------------------
Lesotho                                                [*****]
------------------------------------------------------------------
Liberia                                                [*****]
------------------------------------------------------------------
Libya                                                  [*****]
------------------------------------------------------------------
Liechtenstein                                          [*****]
------------------------------------------------------------------
Lithuania                                              [*****]
------------------------------------------------------------------
Luxembourg                                             [*****]
------------------------------------------------------------------
Macau                                                  [*****]
------------------------------------------------------------------
Macedonia                                              [*****]
------------------------------------------------------------------
Madagascar                                             [*****]
------------------------------------------------------------------
Malawi                                                 [*****]
------------------------------------------------------------------
Malaysia                                               [*****]
------------------------------------------------------------------
Maldives                                               [*****]
------------------------------------------------------------------
Mali                                                   [*****]
------------------------------------------------------------------
Malta                                                  [*****]
------------------------------------------------------------------
Marshall Islands                                       [*****]
------------------------------------------------------------------
Mauritania                                             [*****]
------------------------------------------------------------------
Mauritius                                              [*****]
------------------------------------------------------------------
Mexico                                                 [*****]
------------------------------------------------------------------
Micronesia                                             [*****]
------------------------------------------------------------------
Moldova                                                [*****]
------------------------------------------------------------------
Monaco                                                 [*****]
------------------------------------------------------------------
Mongolia                                               [*****]
------------------------------------------------------------------
Montserrat                                             [*****]
------------------------------------------------------------------
Morocco                                                [*****]
------------------------------------------------------------------
Mozambique                                             [*****]
------------------------------------------------------------------
Myanmar                                                [*****]
------------------------------------------------------------------
</TABLE>

                          MCI WorldCom -- PROPRIETARY
                 Not for use or disclosure outside MCI WorldCom
                         except under written agreement

<PAGE>

                                  Schedule CC-A

<TABLE>
<CAPTION>
     COUNTRY                                       RATE PER MINUTE
------------------------------------------------------------------
<S>                                                <C>
Namibia                                                [*****]
------------------------------------------------------------------
Nauru                                                  [*****]
------------------------------------------------------------------
Nepal                                                  [*****]
------------------------------------------------------------------
Netherland Antilles                                    [*****]
------------------------------------------------------------------
Netherlands                                            [*****]
------------------------------------------------------------------
Nevis                                                  [*****]
------------------------------------------------------------------
New Caledonia                                          [*****]
------------------------------------------------------------------
New Zealand                                            [*****]
------------------------------------------------------------------
Nicaragua                                              [*****]
------------------------------------------------------------------
Niger                                                  [*****]
------------------------------------------------------------------
Nigeria                                                [*****]
------------------------------------------------------------------
Niue Island                                            [*****]
------------------------------------------------------------------
Norway                                                 [*****]
------------------------------------------------------------------
Oman                                                   [*****]
------------------------------------------------------------------
Pakistan                                               [*****]
------------------------------------------------------------------
Palau                                                  [*****]
------------------------------------------------------------------
Panama                                                 [*****]
------------------------------------------------------------------
Papua New Guinea                                       [*****]
------------------------------------------------------------------
Paraguay                                               [*****]
------------------------------------------------------------------
Peru                                                   [*****]
------------------------------------------------------------------
Philippines                                            [*****]
------------------------------------------------------------------
Poland                                                 [*****]
------------------------------------------------------------------
Portugal                                               [*****]
------------------------------------------------------------------
Qatar                                                  [*****]
------------------------------------------------------------------
Reunion Island                                         [*****]
------------------------------------------------------------------
Romania                                                [*****]
------------------------------------------------------------------
Russia                                                 [*****]
------------------------------------------------------------------
Rwanda                                                 [*****]
------------------------------------------------------------------
San Marino                                             [*****]
------------------------------------------------------------------
Sao Tome                                               [*****]
------------------------------------------------------------------
Saudi Arabia                                           [*****]
------------------------------------------------------------------
Senegal                                                [*****]
------------------------------------------------------------------
Seychelles                                             [*****]
------------------------------------------------------------------
Sierra Leone                                           [*****]
------------------------------------------------------------------
Singapore                                              [*****]
------------------------------------------------------------------
Slovakia                                               [*****]
------------------------------------------------------------------
Slovenia                                               [*****]
------------------------------------------------------------------
Solomon Islands                                        [*****]
------------------------------------------------------------------
Somalia                                                [*****]
------------------------------------------------------------------
South Africa                                           [*****]
------------------------------------------------------------------
Spain                                                  [*****]
------------------------------------------------------------------
Siapan                                                 [*****]
------------------------------------------------------------------
Sri Lanka                                              [*****]
------------------------------------------------------------------
St Helena                                              [*****]
------------------------------------------------------------------
St Kitts/Nevis                                         [*****]
------------------------------------------------------------------
St Lucia                                               [*****]
------------------------------------------------------------------
St Pierre/Miquelon                                     [*****]
------------------------------------------------------------------
St Vincent                                             [*****]
------------------------------------------------------------------
Sudan                                                  [*****]
------------------------------------------------------------------
</TABLE>

                          MCI WorldCom -- PROPRIETARY
                 Not for use or disclosure outside MCI WorldCom
                         except under written agreement

<PAGE>

                                  Schedule CC-A

<TABLE>
<CAPTION>
     COUNTRY                                       RATE PER MINUTE
------------------------------------------------------------------
<S>                                                <C>
Suriname                                               [*****]
------------------------------------------------------------------
Swaziland                                              [*****]
------------------------------------------------------------------
Sweden                                                 [*****]
------------------------------------------------------------------
Switzerland                                            [*****]
------------------------------------------------------------------
Syria                                                  [*****]
------------------------------------------------------------------
Taiwan                                                 [*****]
------------------------------------------------------------------
Tanzania                                               [*****]
------------------------------------------------------------------
Thailand                                               [*****]
------------------------------------------------------------------
Togo                                                   [*****]
------------------------------------------------------------------
Tonga                                                  [*****]
------------------------------------------------------------------
Trinidad/Tobago                                        [*****]
------------------------------------------------------------------
Tunisia                                                [*****]
------------------------------------------------------------------
Turkey                                                 [*****]
------------------------------------------------------------------
Turkmenistan                                           [*****]
------------------------------------------------------------------
Turks/Caicos Islands                                   [*****]
------------------------------------------------------------------
Tuvalu                                                 [*****]
------------------------------------------------------------------
Uganda                                                 [*****]
------------------------------------------------------------------
Ukraine                                                [*****]
------------------------------------------------------------------
United Arab Emirates                                   [*****]
------------------------------------------------------------------
United Kingdom                                         [*****]
------------------------------------------------------------------
Uruguay                                                [*****]
------------------------------------------------------------------
Uzbekistan                                             [*****]
------------------------------------------------------------------
Vanuatu                                                [*****]
------------------------------------------------------------------
Vatican City (Italy)                                   [*****]
------------------------------------------------------------------
Venezuela                                              [*****]
------------------------------------------------------------------
Vietnam                                                [*****]
------------------------------------------------------------------
WaIlis/Futuna                                          [*****]
------------------------------------------------------------------
Western Samoa                                          [*****]
------------------------------------------------------------------
Yemen                                                  [*****]
------------------------------------------------------------------
Yugoslavia                                             [*****]
------------------------------------------------------------------
Zaire                                                  [*****]
------------------------------------------------------------------
Zambia                                                 [*****]
------------------------------------------------------------------
Zimbabwe                                               [*****]
------------------------------------------------------------------
</TABLE>

                          MCI WorldCom -- PROPRIETARY
                 Not for use or disclosure outside MCI WorldCom
                         except under written agreement

<PAGE>

                                  Schedule CC-B

                CALLING CARD INTERNATIONAL ORIGINATION RATE
                            INTERNATIONAL TO US

<TABLE>
<CAPTION>
COUNTRY                                                    RATE PER MINUTE
--------------------------------------------------------------------------
<S>                                                        <C>
American Samoa                                                 [*****]
--------------------------------------------------------------------------
Angilla                                                        [*****]
--------------------------------------------------------------------------
Antigua                                                        [*****]
--------------------------------------------------------------------------
Argentina                                                      [*****]
--------------------------------------------------------------------------
Armenia                                                        [*****]
--------------------------------------------------------------------------
Aruba                                                          [*****]
--------------------------------------------------------------------------
Australia                                                      [*****]
--------------------------------------------------------------------------
Austria                                                        [*****]
--------------------------------------------------------------------------
Bahamas                                                        [*****]
--------------------------------------------------------------------------
Bahrain                                                        [*****]
--------------------------------------------------------------------------
Bangladesh                                                     [*****]
--------------------------------------------------------------------------
Barbados                                                       [*****]
--------------------------------------------------------------------------
Belarus                                                        [*****]
--------------------------------------------------------------------------
Belgium                                                        [*****]
--------------------------------------------------------------------------
Belize                                                         [*****]
--------------------------------------------------------------------------
Bermuda                                                        [*****]
--------------------------------------------------------------------------
Bolivia                                                        [*****]
--------------------------------------------------------------------------
Br Virgin Islands                                              [*****]
--------------------------------------------------------------------------
Brazil                                                         [*****]
--------------------------------------------------------------------------
Brunei                                                         [*****]
--------------------------------------------------------------------------
Bulgaria                                                       [*****]
--------------------------------------------------------------------------
Canada                                                         [*****]
--------------------------------------------------------------------------
Cayman Islands                                                 [*****]
--------------------------------------------------------------------------
Chile                                                          [*****]
--------------------------------------------------------------------------
China                                                          [*****]
--------------------------------------------------------------------------
Colombia                                                       [*****]
--------------------------------------------------------------------------
Cook Islands                                                   [*****]
--------------------------------------------------------------------------
Costa Rica                                                     [*****]
--------------------------------------------------------------------------
Croatia                                                        [*****]
--------------------------------------------------------------------------
Cyprus                                                         [*****]
--------------------------------------------------------------------------
Czech Republic                                                 [*****]
--------------------------------------------------------------------------
Denmark                                                        [*****]
--------------------------------------------------------------------------
Dominica                                                       [*****]
--------------------------------------------------------------------------
Dominican Republic                                             [*****]
--------------------------------------------------------------------------
Ecuador                                                        [*****]
--------------------------------------------------------------------------
Egypt                                                          [*****]
--------------------------------------------------------------------------
El Salvador                                                    [*****]
--------------------------------------------------------------------------
Estonia                                                        [*****]
--------------------------------------------------------------------------
Fiji Islands                                                   [*****]
--------------------------------------------------------------------------
Finland                                                        [*****]
--------------------------------------------------------------------------
France                                                         [*****]
--------------------------------------------------------------------------
French Antilles                                                [*****]
--------------------------------------------------------------------------
French Guiana                                                  [*****]
--------------------------------------------------------------------------
Gabon                                                          [*****]
--------------------------------------------------------------------------
</TABLE>

                          MCI WorldCom -- PROPRIETARY
                 Not for use or disclosure outside MCI WorldCom
                         except under written agreement

<PAGE>

                                  Schedule CC-B
<TABLE>
<CAPTION>
COUNTRY                                                    RATE PER MINUTE
--------------------------------------------------------------------------
<S>                                                        <C>
Gambia                                                         [*****]
--------------------------------------------------------------------------
Georgia                                                        [*****]
--------------------------------------------------------------------------
Germany                                                        [*****]
--------------------------------------------------------------------------
Ghana                                                          [*****]
--------------------------------------------------------------------------
Greece                                                         [*****]
--------------------------------------------------------------------------
Grenada                                                        [*****]
--------------------------------------------------------------------------
Guatemala                                                      [*****]
--------------------------------------------------------------------------
Guyana                                                         [*****]
--------------------------------------------------------------------------
Haiti                                                          [*****]
--------------------------------------------------------------------------
Honduras                                                       [*****]
--------------------------------------------------------------------------
Hong Kong                                                      [*****]
--------------------------------------------------------------------------
Hungary                                                        [*****]
--------------------------------------------------------------------------
Iceland                                                        [*****]
--------------------------------------------------------------------------
India-                                                         [*****]
--------------------------------------------------------------------------
Indonesia                                                      [*****]
--------------------------------------------------------------------------
Iran                                                           [*****]
--------------------------------------------------------------------------
Ireland                                                        [*****]
--------------------------------------------------------------------------
Israel                                                         [*****]
--------------------------------------------------------------------------
Italy                                                          [*****]
--------------------------------------------------------------------------
Ivory Coast                                                    [*****]
--------------------------------------------------------------------------
Jamaica                                                        [*****]
--------------------------------------------------------------------------
Japan                                                          [*****]
--------------------------------------------------------------------------
Jordan                                                         [*****]
--------------------------------------------------------------------------
Kazakhstan                                                     [*****]
--------------------------------------------------------------------------
Kenya                                                          [*****]
--------------------------------------------------------------------------
Korea (South)                                                  [*****]
--------------------------------------------------------------------------
Kuwait                                                         [*****]
--------------------------------------------------------------------------
Latvia                                                         [*****]
--------------------------------------------------------------------------
Lebanon                                                        [*****]
--------------------------------------------------------------------------
Liberia                                                        [*****]
--------------------------------------------------------------------------
Liechtenstein                                                  [*****]
--------------------------------------------------------------------------
Luxembourg                                                     [*****]
--------------------------------------------------------------------------
Macao                                                          [*****]
--------------------------------------------------------------------------
Macedonia                                                      [*****]
--------------------------------------------------------------------------
Malaysia                                                       [*****]
--------------------------------------------------------------------------
Malta                                                          [*****]
--------------------------------------------------------------------------
Marshall islands                                               [*****]
--------------------------------------------------------------------------
Mexico                                                         [*****]
--------------------------------------------------------------------------
Micronesia                                                     [*****]
--------------------------------------------------------------------------
Monaco                                                         [*****]
--------------------------------------------------------------------------
Montserrat                                                     [*****]
--------------------------------------------------------------------------
Morocco                                                        [*****]
--------------------------------------------------------------------------
Netherland Antilles                                            [*****]
--------------------------------------------------------------------------
Netherlands                                                    [*****]
--------------------------------------------------------------------------
New Zealand                                                    [*****]
--------------------------------------------------------------------------
Nicaragua                                                      [*****]
--------------------------------------------------------------------------
Norway                                                         [*****]
--------------------------------------------------------------------------
Pakistan                                                       [*****]
--------------------------------------------------------------------------
Panama                                                         [*****]
--------------------------------------------------------------------------
</TABLE>

                          MCI WorldCom -- PROPRIETARY
                 Not for use or disclosure outside MCI WorldCom
                         except under written agreement

<PAGE>

                                  Schedule CC-B
<TABLE>
<CAPTION>
    COUNTRY                                                RATE PER MINUTE
--------------------------------------------------------------------------
<S>                                                        <C>
Papa New Guinea                                                [*****]
--------------------------------------------------------------------------
Paraguay                                                       [*****]
--------------------------------------------------------------------------
Peru                                                           [*****]
--------------------------------------------------------------------------
Philippines                                                    [*****]
--------------------------------------------------------------------------
Poland                                                         [*****]
--------------------------------------------------------------------------
Portugal                                                       [*****]
--------------------------------------------------------------------------
Qatar                                                          [*****]
--------------------------------------------------------------------------
Romania                                                        [*****]
--------------------------------------------------------------------------
Russia                                                         [*****]
--------------------------------------------------------------------------
San Marino                                                     [*****]
--------------------------------------------------------------------------
Saudi Arabia                                                   [*****]
--------------------------------------------------------------------------
Senegal                                                        [*****]
--------------------------------------------------------------------------
Singapore                                                      [*****]
--------------------------------------------------------------------------
Slovakia                                                       [*****]
--------------------------------------------------------------------------
Slovenia                                                       [*****]
--------------------------------------------------------------------------
Solomon Islands                                                [*****]
--------------------------------------------------------------------------
South Africa                                                   [*****]
--------------------------------------------------------------------------
Spain                                                          [*****]
--------------------------------------------------------------------------
Sri Lanka                                                      [*****]
--------------------------------------------------------------------------
St Kitts/Nevis                                                 [*****]
--------------------------------------------------------------------------
St Vincent                                                     [*****]
--------------------------------------------------------------------------
St. Lucia                                                      [*****]
--------------------------------------------------------------------------
SWEDEN                                                         [*****]
--------------------------------------------------------------------------
Switzerland                                                    [*****]
--------------------------------------------------------------------------
Syria                                                          [*****]
--------------------------------------------------------------------------
Taiwan                                                         [*****]
--------------------------------------------------------------------------
Thailand                                                       [*****]
--------------------------------------------------------------------------
Trinidad/Tobago                                                [*****]
--------------------------------------------------------------------------
Turkey                                                         [*****]
--------------------------------------------------------------------------
Turks and CAICOS                                               [*****]
--------------------------------------------------------------------------
Uganda                                                         [*****]
--------------------------------------------------------------------------
Ukraine                                                        [*****]
--------------------------------------------------------------------------
United Arab Emirates                                           [*****]
--------------------------------------------------------------------------
United Kingdom                                                 [*****]
--------------------------------------------------------------------------
Uruguay                                                        [*****]
--------------------------------------------------------------------------
Uzbekistan                                                     [*****]
--------------------------------------------------------------------------
Vatican City                                                   [*****]
--------------------------------------------------------------------------
Venezuela                                                      [*****]
--------------------------------------------------------------------------
Vietnam                                                        [*****]
--------------------------------------------------------------------------
Yemen                                                          [*****]
--------------------------------------------------------------------------
Zambia                                                         [*****]
--------------------------------------------------------------------------
</TABLE>

                          MCI WorldCom -- PROPRIETARY
                 Not for use or disclosure outside MCI WorldCom
                         except under written agreement

<PAGE>

                                  SCHEDULE CL-A

                      CLASSIC MILLENNIUM SUPERSAVER LATA'S

<TABLE>
<CAPTION>
CITY                        LATA
--------------------------------
<S>                         <C>
Boston                      128
--------------------------------
Atlantic Coast              220
--------------------------------
Mercerville                 222
--------------------------------
Pittsburgh                  234
--------------------------------
Baltimore                   238
--------------------------------
Culpeper                    246
--------------------------------
Richmond                    248
--------------------------------
Lynchburg                   250
--------------------------------
Norfolk                     252
--------------------------------
Cleveland                   320
--------------------------------
Columbus                    324
--------------------------------
Akron                       325
--------------------------------
Evansville                  330
--------------------------------
Indianapolis                336
--------------------------------
Detroit                     340
--------------------------------
Milwaukee                   356
--------------------------------
Springfield                 374
--------------------------------
Charlotte                   422
--------------------------------
Greensboro                  424
--------------------------------
Greenville                  430
--------------------------------
Savannah                    440
--------------------------------
Albany                      444
--------------------------------
Macon                       446
--------------------------------
Pensacola                   448
--------------------------------
Jacksonville                452
--------------------------------
Daytona Beach               456
--------------------------------
Orlando                     458
--------------------------------
Louisville                  462
--------------------------------
Memphis                     468
--------------------------------
Nashville                   470
--------------------------------
Chattanooga                 472
--------------------------------
Knoxville                   474
--------------------------------
Birmingham                  476
--------------------------------
Huntsville                  477
--------------------------------
Mobile                      480
--------------------------------
Biloxi                      484
--------------------------------
New Orleans                 490
--------------------------------
Baton Rouge                 492
--------------------------------
Springfield                 522
--------------------------------
Kansas City                 524
--------------------------------
Little Rock                 528
--------------------------------
Wichita                     532
--------------------------------
Oklahoma City               536
--------------------------------
Tulsa                       538
--------------------------------
El Paso                     540
--------------------------------
Dallas                      552
--------------------------------
Longview                    554
--------------------------------
Austin                      558
--------------------------------
Beaumont                    562
--------------------------------
Corpus Christi              564
--------------------------------
San Antonio                 566
--------------------------------
Brownsville                 568
--------------------------------
Minneapolis                 628
--------------------------------
Des Moines                  632
--------------------------------
Davenport                   634
--------------------------------
Cedar Rapids                635
--------------------------------
South Dakota                640
--------------------------------
Omaha                       644
--------------------------------
Idaho                       652
--------------------------------
Utah                        660
--------------------------------
Tucson                      668
--------------------------------
Portland                    672
--------------------------------
Seattle                     674
--------------------------------
Reno                        720
--------------------------------
Chico                       724
--------------------------------
Sacramento                  726
--------------------------------
Monterey                    736
--------------------------------
Stockton                    738
--------------------------------
San Luis Obispo             740
--------------------------------
Connecticut                 920
--------------------------------
Cincinnati                  922
--------------------------------
Fayetteville                949
--------------------------------
Tampa                       952
--------------------------------
Tallahassee                 953
--------------------------------
Palm Springs                973
--------------------------------
Rochester                   974
--------------------------------
</TABLE>

                                                                     Page 1 of 1

<PAGE>

                                  SCHEDULE CL-B
                        CLASSIC MILLENNIUM PREMIUM LATA'S

<TABLE>
<CAPTION>
CITY                                          LATA
--------------------------------------------------
<S>                                           <C>
New York                                       132
Newark                                         224
Philadelphia                                   228
Washington D.C.                                236
Chicago                                        358
Atlanta                                        438
Miami                                          460
St. Louis                                      520
Houston                                        560
Denver                                         656
Phoenix                                        666
Las Vegas                                      721
San Francisco                                  722
Los Angeles                                    730
San Diego                                      732
--------------------------------------------------
</TABLE>

                                                                     Page 1 of 1
<PAGE>

                                  SCHEDULE CL-C
                     CLASSIC MILLENNIUM INTERNATIONAL RATES

<TABLE>
<CAPTION>
                                  END USER DED.                                    SWITCHLESS 1+
          COUNTRY                   1+/TERM               SWITCHLESS 1+            FROM HAWAII
          -------                   -------               -------------            -----------
<S>                               <C>                     <C>                      <C>
AFGHANISTAN                         [*****]                  [*****]                  [*****]
ALBANIA                             [*****]                  [*****]                  [*****]
ALGERIA                             [*****]                  [*****]                  [*****]
AMERICAN SAMOA                      [*****]                  [*****]                  [*****]
ANDORRA                             [*****]                  [*****]                  [*****]
ANGOLA                              [*****]                  [*****]                  [*****]
ANGUILLA                            [*****]                  [*****]                  [*****]
ANTARCTICA                          [*****]                  [*****]                  [*****]
ANTARCTICA - SCOTT BASE             [*****]                  [*****]                  [*****]
ANTIGUA & BARBUDA                   [*****]                  [*****]                  [*****]
ARGENTINA-LAND LINE                 [*****]                  [*****]                  [*****]
ARGENTINA-MOBILE                    [*****]                  [*****]                  [*****]
ARGENTINA - BUENOS AIRES            [*****]                  [*****]                  [*****]
ARMENIA                             [*****]                  [*****]                  [*****]
ARUBA                               [*****]                  [*****]                  [*****]
ASCENSION ISLAND                    [*****]                  [*****]                  [*****]
AUSTRALIA - LAND LINE               [*****]                  [*****]                  [*****]
AUSTRALIA-MOBILE                    [*****]                  [*****]                  [*****]
AUSTRALIA-MELBOURNE                 [*****]                  [*****]                  [*****]
AUSTRALIA-SYDNEY                    [*****]                  [*****]                  [*****]
AUSTRIA-LAND LINE                   [*****]                  [*****]                  [*****]
AUSTRIA-MOBILE                      [*****]                  [*****]                  [*****]
AUSTRIA-VIENNA                      [*****]                  [*****]                  [*****]
AZERBAIJAN                          [*****]                  [*****]                  [*****]
BAHAMAS                             [*****]                  [*****]                  [*****]
BAHRAIN                             [*****]                  [*****]                  [*****]
BANGLADESH                          [*****]                  [*****]                  [*****]
BANGLADESH-DHAKA                    [*****]                  [*****]                  [*****]
BARBADOS                            [*****]                  [*****]                  [*****]
BELARUS                             [*****]                  [*****]                  [*****]
BELGIUM - LAND LINE                 [*****]                  [*****]                  [*****]
BELGIUM-MOBILE                      [*****]                  [*****]                  [*****]
BELGIUM-BRUSSELS                    [*****]                  [*****]                  [*****]
BELIZE                              [*****]                  [*****]                  [*****]
BENIN                               [*****]                  [*****]                  [*****]
BERMUDA                             [*****]                  [*****]                  [*****]
BHUTAN                              [*****]                  [*****]                  [*****]
BOLIVIA-LAND LINE                   [*****]                  [*****]                  [*****]
BOLIVIA-MOBILE                      [*****]                  [*****]                  [*****]
BOLIVIA-SANTA CRUZ                  [*****]                  [*****]                  [*****]
BOSNIA & HERZEGOVINA                [*****]                  [*****]                  [*****]
BOTSWANA                            [*****]                  [*****]                  [*****]
BRAZIL-LAND LINE                    [*****]                  [*****]                  [*****]
BRAZIL-MOBILE                       [*****]                  [*****]                  [*****]
BRAZIL - BELO HORIZONTE             [*****]                  [*****]                  [*****]
BRAZIL - RIO DE JANEIRO             [*****]                  [*****]                  [*****]
BRAZIL - SAO PAULO                  [*****]                  [*****]                  [*****]
BRITISH VIRGIN ISLANDS              [*****]                  [*****]                  [*****]
BRUNEI                              [*****]                  [*****]                  [*****]
BULGARIA                            [*****]                  [*****]                  [*****]
BURKINA FASO                        [*****]                  [*****]                  [*****]
BURUNDI                             [*****]                  [*****]                  [*****]
CAMBODIA                            [*****]                  [*****]                  [*****]
CAMEROON                            [*****]                  [*****]                  [*****]
CAPE VERDE ISLANDS                  [*****]                  [*****]                  [*****]
CAYMAN ISLANDS                      [*****]                  [*****]                  [*****]
</TABLE>

                                                                     Page 1 to 6
<PAGE>

                                  SCHEDULE CL-C
                     CLASSIC MILLENNIUM INTERNATIONAL RATES

<TABLE>
<CAPTION>
                                  END USER DED.                                    SWITCHLESS 1+
          COUNTRY                   1+/TERM               SWITCHLESS 1+            FROM HAWAII
          -------                   -------               -------------            -----------
<S>                               <C>                     <C>                      <C>

CENTRAL AFRICAN REPUBLIC            [*****]                   [*****]                 [*****]
CHAD                                [*****]                   [*****]                 [*****]
CHILE-LAND LINE                     [*****]                   [*****]                 [*****]
CHILE-MOBILE                        [*****]                   [*****]                 [*****]
CHINA-LAND LINE                     [*****]                   [*****]                 [*****]
CHINA-MOBILE                        [*****]                   [*****]                 [*****]
CHINA-BEIJING                       [*****]                   [*****]                 [*****]
CHINA-SHANGHAI                      [*****]                   [*****]                 [*****]
CHRISTMAS & COCOS ISLANDS           [*****]                   [*****]                 [*****]
COLOMBIA-LAND LINE                  [*****]                   [*****]                 [*****]
COLOMBIA-MOBILE                     [*****]                   [*****]                 [*****]
COLOMBIA - BARANQUILLA              [*****]                   [*****]                 [*****]
COLOMBIA - BOGOTA                   [*****]                   [*****]                 [*****]
COLOMBIA - CALI                     [*****]                   [*****]                 [*****]
COLOMBIA- MEDELLIN                  [*****]                   [*****]                 [*****]
COMOROS                             [*****]                   [*****]                 [*****]
CONGO                               [*****]                   [*****]                 [*****]
COOK ISLANDS                        [*****]                   [*****]                 [*****]
COSTA RICA-LAND LINE                [*****]                   [*****]                 [*****]
COSTA RICA-MOBILE                   [*****]                   [*****]                 [*****]
CROATIA                             [*****]                   [*****]                 [*****]
CUBA                                [*****]                   [*****]                 [*****]
CYPRUS-LAND LINE                    [*****]                   [*****]                 [*****]
CYPRUS-MOBILE                       [*****]                   [*****]                 [*****]
CZECH REPUBLIC                      [*****]                   [*****]                 [*****]
DENMARK-LAND LINE                   [*****]                   [*****]                 [*****]
DENMARK-MOBILE                      [*****]                   [*****]                 [*****]
DIEGO GARCIA                        [*****]                   [*****]                 [*****]
DJIBOUTI                            [*****]                   [*****]                 [*****]
DOMINICA                            [*****]                   [*****]                 [*****]
DOMINICAN REPUBLIC                  [*****]                   [*****]                 [*****]
ECUADOR-LAND LINE                   [*****]                   [*****]                 [*****]
ECUADOR-MOBILE                      [*****]                   [*****]                 [*****]
ECUADOR-GUAYAQUIL                   [*****]                   [*****]                 [*****]
ECUADOR-QUITO                       [*****]                   [*****]                 [*****]
EGYPT-LAND LINE                     [*****]                   [*****]                 [*****]
EGYPT-MOBILE                        [*****]                   [*****]                 [*****]
EGYPT-CAIRO                         [*****]                   [*****]                 [*****]
EL SALVADOR                         [*****]                   [*****]                 [*****]
EQUATORIAL GUINEA                   [*****]                   [*****]                 [*****]
ERITREA                             [*****]                   [*****]                 [*****]
ESTONIA                             [*****]                   [*****]                 [*****]
ETHIOPIA                            [*****]                   [*****]                 [*****]
FALKLAND ISLANDS                    [*****]                   [*****]                 [*****]
FAROE ISLANDS                       [*****]                   [*****]                 [*****]
FIJI ISLANDS                        [*****]                   [*****]                 [*****]
FINLAND                             [*****]                   [*****]                 [*****]
FINLAND-HELSINKI                    [*****]                   [*****]                 [*****]
FRANCE - LAND LINE                  [*****]                   [*****]                 [*****]
FRANCE-MOBILE                       [*****]                   [*****]                 [*****]
FRANCE-PARIS                        [*****]                   [*****]                 [*****]
FRENCH ANTILLES                     [*****]                   [*****]                 [*****]
FRENCH GUIANA                       [*****]                   [*****]                 [*****]
FRENCH POLYNESIA                    [*****]                   [*****]                 [*****]
GABON                               [*****]                   [*****]                 [*****]
GAMBIA                              [*****]                   [*****]                 [*****]
</TABLE>

<PAGE>
                                  SCHEDULE CL-C
                     CLASSIC MILLENNIUM INTERNATIONAL RATES
<TABLE>
<CAPTION>
                                  END USER DED.                                    SWITCHLESS 1+
          COUNTRY                   1+/TERM               SWITCHLESS 1+            FROM HAWAII
          -------                   -------               -------------            -----------
<S>                               <C>                     <C>                      <C>
GEORGIA                              [*****]                  [*****]                [*****]
GERMANY - LAND LINE                  [*****]                  [*****]                [*****]
GERMANY-MOBILE                       [*****]                  [*****]                [*****]
GERMANY-BERLIN                       [*****]                  [*****]                [*****]
GHANA                                [*****]                  [*****]                [*****]
GIBRALTAR                            [*****]                  [*****]                [*****]
GREECE-LAND LINE                     [*****]                  [*****]                [*****]
GREECE-MOBILE                        [*****]                  [*****]                [*****]
GREECE-ATHENS                        [*****]                  [*****]                [*****]
GREENLAND                            [*****]                  [*****]                [*****]
GRENADA                              [*****]                  [*****]                [*****]
GUADELOUPE                           [*****]                  [*****]                [*****]
GUANTANAMO BAY                       [*****]                  [*****]                [*****]
GUATEMALA-LAND LINE                  [*****]                  [*****]                [*****]
GUATEMALA-MOBILE                     [*****]                  [*****]                [*****]
GUINEA                               [*****]                  [*****]                [*****]
GUINEA BJSSAU                        [*****]                  [*****]                [*****]
GUYANA                               [*****]                  [*****]                [*****]
HAITI                                [*****]                  [*****]                [*****]
HONDURAS                             [*****]                  [*****]                [*****]
HONG KONG - LAND LINE                [*****]                  [*****]                [*****]
HONG KONG-MOBILE                     [*****]                  [*****]                [*****]
HUNGARY                              [*****]                  [*****]                [*****]
ICELAND-LAND LINE                    [*****]                  [*****]                [*****]
ICELAND-MOBILE                       [*****]                  [*****]                [*****]
INDIA-LAND LINE                      [*****]                  [*****]                [*****]
INDIA-MOBILE                         [*****]                  [*****]                [*****]
INDIA-BANGLALORE                     [*****]                  [*****]                [*****]
INDIA-BOMBAY                         [*****]                  [*****]                [*****]
INDIA-CALCUTTA                       [*****]                  [*****]                [*****]
INDIA-HYDERABAD                      [*****]                  [*****]                [*****]
INDIA-MADRAS                         [*****]                  [*****]                [*****]
INDIA-NEW DELHI                      [*****]                  [*****]                [*****]
INDIA-PRUNE                          [*****]                  [*****]                [*****]
INDONESIA-LAND LINE                  [*****]                  [*****]                [*****]
INDONESIA-MOBILE                     [*****]                  [*****]                [*****]
INDONESIA-JAKARTA                    [*****]                  [*****]                [*****]
IRAN                                 [*****]                  [*****]                [*****]
IRAQ                                 [*****]                  [*****]                [*****]
IRELAND-LAND LINE                    [*****]                  [*****]                [*****]
IRELAND-MOBILE                       [*****]                  [*****]                [*****]
IRELAND-DUBLIN                       [*****]                  [*****]                [*****]
IRIDIUM                              [*****]                  [*****]                [*****]
ISRAEL-LAND LINE                     [*****]                  [*****]                [*****]
ISRAEL-MOBILE                        [*****]                  [*****]                [*****]
ITALY - LAND LINE                    [*****]                  [*****]                [*****]
ITALY-MOBILE                         [*****]                  [*****]                [*****]
IVORY COAST                          [*****]                  [*****]                [*****]
JAMAICA                              [*****]                  [*****]                [*****]
JAPAN - LAND LINE                    [*****]                  [*****]                [*****]
JAPAN-MOBILE                         [*****]                  [*****]                [*****]
JAPAN - NAGOYA                       [*****]                  [*****]                [*****]
JAPAN - OSAKA                        [*****]                  [*****]                [*****]
JAPAN - TOKYO                        [*****]                  [*****]                [*****]
JAPAN-YOKOHAMA                       [*****]                  [*****]                [*****]
JORDAN                               [*****]                  [*****]                [*****]
</TABLE>

<PAGE>

                                  SCHEDULE CL-C
                     CLASSIC MILLENNIUM INTERNATIONAL RATES

<TABLE>
<CAPTION>
                                  END USER DED.                                    SWITCHLESS 1+
          COUNTRY                   1+/TERM               SWITCHLESS 1+            FROM HAWAII
          -------                   -------               -------------            -----------
<S>                               <C>                     <C>                      <C>
KAZAKHSTAN                           [*****]                  [*****]                 [*****]
KENYA                                [*****]                  [*****]                 [*****]
KIRIBATI                             [*****]                  [*****]                 [*****]
KUWAIT-LAND LINE                     [*****]                  [*****]                 [*****]
KUWAIT-MOBILE                        [*****]                  [*****]                 [*****]
KYRGYZSTAN                           [*****]                  [*****]                 [*****]
LAOS                                 [*****]                  [*****]                 [*****]
LATVIA                               [*****]                  [*****]                 [*****]
LEBANON-LAND LINE                    [*****]                  [*****]                 [*****]
LEBANON-MOBILE                       [*****]                  [*****]                 [*****]
LESOTHO                              [*****]                  [*****]                 [*****]
LIBERIA                              [*****]                  [*****]                 [*****]
LIBYA                                [*****]                  [*****]                 [*****]
LIECHTENSTEIN                        [*****]                  [*****]                 [*****]
LITHUANIA                            [*****]                  [*****]                 [*****]
LUXEMBOURG-LAND LINE                 [*****]                  [*****]                 [*****]
LUXEMBOURG-MOBILE                    [*****]                  [*****]                 [*****]
MACAO                                [*****]                  [*****]                 [*****]
MACEDONIA                            [*****]                  [*****]                 [*****]
MADAGASCAR-LAND LINE                 [*****]                  [*****]                 [*****]
MADAGASCAR-MOBILE                    [*****]                  [*****]                 [*****]
MALAWI                               [*****]                  [*****]                 [*****]
MALAYSIA-LAND LINE                   [*****]                  [*****]                 [*****]
MALAYSIA-MOBILE                      [*****]                  [*****]                 [*****]
MALAYSIA-KUALA LUMPUR                [*****]                  [*****]                 [*****]
MALDIVES                             [*****]                  [*****]                 [*****]
MALI REPUBLIC                        [*****]                  [*****]                 [*****]
MALTA                                [*****]                  [*****]                 [*****]
MARISAT - ATLANTIC OCEAN             [*****]                  [*****]                 [*****]
MARISAT - INDIAN OCEAN               [*****]                  [*****]                 [*****]
MARISAT - PACIFIC OCEAN              [*****]                  [*****]                 [*****]
MARISAT - WEST ATLANTIC              [*****]                  [*****]                 [*****]
MARSHALL ISLANDS                     [*****]                  [*****]                 [*****]
MAURITANIA                           [*****]                  [*****]                 [*****]
MAURITIUS                            [*****]                  [*****]                 [*****]
MAYOTTE ISLAND                       [*****]                  [*****]                 [*****]
MICRONESIA                           [*****]                  [*****]                 [*****]
MOLDOVA                              [*****]                  [*****]                 [*****]
MONACO                               [*****]                  [*****]                 [*****]
MONGOLIA                             [*****]                  [*****]                 [*****]
MONTSERRAT                           [*****]                  [*****]                 [*****]
MOROCCO                              [*****]                  [*****]                 [*****]
MOZAMBIQUE                           [*****]                  [*****]                 [*****]
MYANMAR-BURMA                        [*****]                  [*****]                 [*****]
NIAKHODKA                            [*****]                  [*****]                 [*****]
NAMIBIA                              [*****]                  [*****]                 [*****]
NAURU                                [*****]                  [*****]                 [*****]
NEPAL                                [*****]                  [*****]                 [*****]
NETHERLANDS - LAND LINE              [*****]                  [*****]                 [*****]
NETHERLANDS-MOBILE                   [*****]                  [*****]                 [*****]
NETHERLANDS ANTILLES                 [*****]                  [*****]                 [*****]
NEW CALEDONIA                        [*****]                  [*****]                 [*****]
NEW ZEALAND-LAND LINE                [*****]                  [*****]                 [*****]
NEW ZEALAND-MOBILE                   [*****]                  [*****]                 [*****]
NEW ZEALAND-AUCKLAND                 [*****]                  [*****]                 [*****]
NICARAGUA                            [*****]                  [*****]                 [*****]
</TABLE>

<PAGE>

                                  SCHEDULE CL-C
                     CLASSIC MILLENNIUM INTERNATIONAL RATES

<TABLE>
<CAPTION>
                                  END USER DED.                                    SWITCHLESS 1+
          COUNTRY                   1+/TERM               SWITCHLESS 1+            FROM HAWAII
          -------                   -------               -------------            -----------
<S>                               <C>                     <C>                      <C>
NIGER                                [*****]                  [*****]                 [*****]
NIGERIA                              [*****]                  [*****]                 [*****]
NIUE ISLAND                          [*****]                  [*****]                 [*****]
NORFOLK ISLAND                       [*****]                  [*****]                 [*****]
NORTH KOREA                          [*****]                  [*****]                 [*****]
NORWAY-LAND LINE                     [*****]                  [*****]                 [*****]
NORWAY-MOBILE                        [*****]                  [*****]                 [*****]
OMAN                                 [*****]                  [*****]                 [*****]
PAKISTAN-LAND LINE                   [*****]                  [*****]                 [*****]
PAKISTAN-MOBILE                      [*****]                  [*****]                 [*****]
PAKISTAN-KARACHI                     [*****]                  [*****]                 [*****]
PALAU                                [*****]                  [*****]                 [*****]
PANAMA-LAND LINE                     [*****]                  [*****]                 [*****]
PANAMA-MOBILE                        [*****]                  [*****]                 [*****]
PAPUA NEW GUINEA                     [*****]                  [*****]                 [*****]
PARAGUAY                             [*****]                  [*****]                 [*****]
PERU LAND LINE                       [*****]                  [*****]                 [*****]
PERU-MOBILE                          [*****]                  [*****]                 [*****]
PERU-LIMA                            [*****]                  [*****]                 [*****]
PHILIPPINES-LAND LINE                [*****]                  [*****]                 [*****]
PHILIPPINES-MOBILE                   [*****]                  [*****]                 [*****]
PHILIPPINES-MANILA                   [*****]                  [*****]                 [*****]
POLAND-LAND LINE                     [*****]                  [*****]                 [*****]
POLAND-MOBILE                        [*****]                  [*****]                 [*****]
PORTUGAL-LAND LINE                   [*****]                  [*****]                 [*****]
PORTUGAL-MOBILE                      [*****]                  [*****]                 [*****]
QATAR                                [*****]                  [*****]                 [*****]
REUNION ISLAND                       [*****]                  [*****]                 [*****]
ROMANIA                              [*****]                  [*****]                 [*****]
RUSSIA                               [*****]                  [*****]                 [*****]
RUSSIA-MOSCOW                        [*****]                  [*****]                 [*****]
RUSSIA-OVERLAY                       [*****]                  [*****]                 [*****]
RUSSIA - ST PETERSBURG               [*****]                  [*****]                 [*****]
RWANDA                               [*****]                  [*****]                 [*****]
SAKHALIN                             [*****]                  [*****]                 [*****]
SAN MARINO                           [*****]                  [*****]                 [*****]
SAO TOME                             [*****]                  [*****]                 [*****]
SAUDI ARABIA                         [*****]                  [*****]                 [*****]
SENEGAL                              [*****]                  [*****]                 [*****]
SEYCHELLES                           [*****]                  [*****]                 [*****]
SIERRA LEONE                         [*****]                  [*****]                 [*****]
SINGAPORE-LAND LINE                  [*****]                  [*****]                 [*****]
SINGAPORE-MOBILE                     [*****]                  [*****]                 [*****]
SLOVAKIA                             [*****]                  [*****]                 [*****]
SLOVENIA - LAND LINE                 [*****]                  [*****]                 [*****]
SLOVENIA-MOBILE                      [*****]                  [*****]                 [*****]
SOLOMON ISLANDS                      [*****]                  [*****]                 [*****]
SOMALIA                              [*****]                  [*****]                 [*****]
SOUTH AFRICA-LAND LINE               [*****]                  [*****]                 [*****]
SOUTH AFRICA-MOBILE                  [*****]                  [*****]                 [*****]
SOUTH AFRICA-JOHANNESBURG            [*****]                  [*****]                 [*****]
SOUTH KOREA-LAND LINE                [*****]                  [*****]                 [*****]
SOUTH KOREA-MOBILE                   [*****]                  [*****]                 [*****]
SOUTH KOREA-SEOUL                    [*****]                  [*****]                 [*****]
SPAIN - LAND LINE                    [*****]                  [*****]                 [*****]
SPAIN-MOBILE                         [*****]                  [*****]                 [*****]
</TABLE>

<PAGE>

                                  SCHEDULE CL-C
                     CLASSIC MILLENNIUM INTERNATIONAL RATES

<TABLE>
<CAPTION>
                                  END USER DED.                                    SWITCHLESS 1+
          COUNTRY                   1+/TERM               SWITCHLESS 1+            FROM HAWAII
          -------                   -------               -------------            -----------
<S>                               <C>                     <C>                      <C>
SRI LANKA                            [*****]                  [*****]                 [*****]
ST HELENA                            [*****]                  [*****]                 [*****]
ST KITTS                             [*****]                  [*****]                 [*****]
ST LUCIA                             [*****]                  [*****]                 [*****]
ST PIERRE & MIQUELON                 [*****]                  [*****]                 [*****]
ST VINCENT & GRENADINES              [*****]                  [*****]                 [*****]
SUDAN                                [*****]                  [*****]                 [*****]
SURINAME                             [*****]                  [*****]                 [*****]
SWAZILAND                            [*****]                  [*****]                 [*****]
SWEDEN - LAND LINE                   [*****]                  [*****]                 [*****]
SWEDEN-MOBILE                        [*****]                  [*****]                 [*****]
SWEDEN-STOCKHOLM                     [*****]                  [*****]                 [*****]
SWITZERLAND - LAND LINE              [*****]                  [*****]                 [*****]
SWITZERLAND-MOBILE                   [*****]                  [*****]                 [*****]
SYRIA                                [*****]                  [*****]                 [*****]
TAIWAN-LAND LINE                     [*****]                  [*****]                 [*****]
TAIWAN-MOBILE                        [*****]                  [*****]                 [*****]
TAIWAN - TAIPEI                      [*****]                  [*****]                 [*****]
TAJIKISTAN                           [*****]                  [*****]                 [*****]
TANZANIA                             [*****]                  [*****]                 [*****]
THAILAND                             [*****]                  [*****]                 [*****]
THAILAND-BANGKOK                     [*****]                  [*****]                 [*****]
TOGO                                 [*****]                  [*****]                 [*****]
TONGA ISLANDS                        [*****]                  [*****]                 [*****]
TRINIDAD & TOBAGO                    [*****]                  [*****]                 [*****]
TUNISIA                              [*****]                  [*****]                 [*****]
TURKEY                               [*****]                  [*****]                 [*****]
TURKEY-ISTANBUL                      [*****]                  [*****]                 [*****]
TURKMENISTAN                         [*****]                  [*****]                 [*****]
TURKS & CAICOS ISLANDS               [*****]                  [*****]                 [*****]
TUVALU                               [*****]                  [*****]                 [*****]
UGANDA                               [*****]                  [*****]                 [*****]
UKRAINE                              [*****]                  [*****]                 [*****]
UNITED ARAB EMIRATES                 [*****]                  [*****]                 [*****]
UNITED KINGDOM - LAND LINE           [*****]                  [*****]                 [*****]
UNITED KINGDOM-MOBILE                [*****]                  [*****]                 [*****]
UNITED KINGDOM-LONDON                [*****]                  [*****]                 [*****]
URUGUAY                              [*****]                  [*****]                 [*****]
UZBEKISTAN                           [*****]                  [*****]                 [*****]
VANUATU                              [*****]                  [*****]                 [*****]
VATICAN CITY                         [*****]                  [*****]                 [*****]
VENEZUELA-LAND LINE                  [*****]                  [*****]                 [*****]
VENEZUELA-MOBILE                     [*****]                  [*****]                 [*****]
VENEZUELA-CARACAS                    [*****]                  [*****]                 [*****]
VIETNAM-LAND LINE                    [*****]                  [*****]                 [*****]
VIETNAM-MOBILE                       [*****]                  [*****]                 [*****]
VIETNAM-HO-CHI-MINH                  [*****]                  [*****]                 [*****]
WALLIS & FUTUNA                      [*****]                  [*****]                 [*****]
WESTERN SAMOA                        [*****]                  [*****]                 [*****]
YEMEN                                [*****]                  [*****]                 [*****]
YUGOSLAVIA                           [*****]                  [*****]                 [*****]
ZAIRE                                [*****]                  [*****]                 [*****]
ZAMBIA                               [*****]                  [*****]                 [*****]
ZIMBABWE                             [*****]                  [*****]                 [*****]
</TABLE>

<PAGE>

                                  SCHEDULE CL-D
                       CLASSIC MILLENNIUM INTERSTATE RATES

INTERSTATE SWITCHLESS 1+/TOLL FREE

<TABLE>
<S>                                                 <C>
All LATAs                                           [*****]
(billing increment 6/6)
</TABLE>

INTERSTATE END-USER DEDICATED 1+

<TABLE>
<S>                                                 <C>
Standard LATAs                                      [*****]
SuperSaver LATAS                                    [*****]
Premium LATAs                                       [*****]
(billing increment 6/6)
(80/20 rule applies)
($1,500/mo. minimum average per T-1)
</TABLE>

INTERSTATE CARRIER TERMINATION

<TABLE>
<S>                                                 <C>
Standard LATAs                                      [*****]
SuperSaver LATAs                                    [*****]
Premium LATAs                                       [*****]
(billing increment 6/6)
(80/20 rule applies)
($1,500/mo. minimum average per T-1)
</TABLE>

INTERSTATE END-USER DEDICATED TOLL FREE

<TABLE>
<S>                                                 <C>
Standard LATAs                                      [*****]
SuperSaver LATAs                                    [*****]
Premium LATAS                                       [*****]
(billing increment 6/6)
(80/20 rule applies)
($1,500/mo. minimum average per T-1)
</TABLE>

INTERSTATE CARRIER ORIGINATION

<TABLE>
<S>                                                <C>
Standard LATAS                                     [*****]
SuperSaver LATAS                                   [*****]
Premium LATAS                                      [*****]
(billing increment 6/6)
(80/20 rule applies)
($1,500/mo. minimum average per T-1)
</TABLE>

<PAGE>

                                  SCHEDULE CL-E
              CLASSIC MILLENNIUM INTERSTATE EXTENDED DOMESTIC RATES

Toll Free Calls Originating in Extended Locations and Terminating in Contiguous
U.S.

<TABLE>
<CAPTION>
                                                      SWITCHLESS                       END-USER DED./ORIG.
                                                      ----------                       -------------------
<S>                                                   <C>                              <C>
Toll Free from Alaska                                   [*****]                               [*****]
Toll Free from Guam                                     [*****]                               [*****]
Toll Free from Hawaii                                   [*****]                               [*****]
Toll Free from Puerto Rico                              [*****]                               [*****]
Toll Free from N Mariana Islands                        [*****]                               [*****]
Toll Free from US Virgin islands                        [*****]                               [*****]
</TABLE>

1+ Calls Originating In Contiguous U.S. and Terminating in Extended Locations

<TABLE>
<CAPTION>
                                                      SWITCHLESS                       END-USER DED./ORIG.
                                                      ----------                       -------------------
<S>                                                   <C>                              <C>
1+ to Alaska                                           [*****]                               [*****]
1+ to Guam                                             [*****]                               [*****]
1+ to Hawaii                                           [*****]                               [*****]
1+ to Puerto Rico                                      [*****]                               [*****]
1+ to N Mariana islands                                [*****]                               [*****]
1+ to US Virgin Islands                                [*****]                               [*****]
</TABLE>

1+ Calls Originating in Hawaii and Terminating in Contiguous U.S.

<TABLE>
<CAPTION>
                                                      SWITCHLESS                       END-USER DED./ORIG.
                                                      ----------                       -------------------
<S>                                                   <C>                              <C>
1+ to Hawaii                                            [*****]                                N/A
</TABLE>

1+ Calls Originating in Hawaii and Terminating in Extended Locations

<TABLE>
<CAPTION>
                                                      SWITCHLESS                       END-USER DED./ORIG.
                                                      ----------                       -------------------
<S>                                                   <C>                              <C>
1+ to Alaska                                           [*****]                                N/A
1+ to Guam                                             [*****]                                N/A
1+ to Puerto Rico                                      [*****]                                N/A
1+ to N Mariana Islands                                [*****]                                N/A
1-4- to US Virgin Islands                              [*****]                                N/A
</TABLE>

Calls are billed in 6 second increments with a 6 second minimum.

Rates are discountable using the Classic Millennium Interstate and extended
discount schedule.

<PAGE>

                                  SCHEDULE CL-F
                       CLASSIC MILLENNIUM INTRASTATE RATES

<TABLE>
<CAPTION>
                                                                                  END USER DEDICATED            END USER DEDICATED
                                               SWITCHLESS 1+ AND                      1+/ CARRIER               TOLL FREE / CARRIER
STATE                                          TOLL FREE RATES                    TERMINATION RATES              ORIGINATION RATES
-----                                          ---------------                    -----------------              -----------------
<S>                                            <C>                                <C>                           <C>
ALABAMA                                            [*****]                             [*****]                        [*****]
ARIZONA                                            [*****]                             [*****]                        [*****]
ARKANSAS                                           [*****]                             [*****]                        [*****]
CALIFORNIA*                                        [*****]                             [*****]                        [*****]
California Intra-lata*                             [*****]                             [*****]
COLORADO                                           [*****]                             [*****]                        [*****]
CONNECTICUT                                        [*****]                             [*****]                        [*****]
DELAWARE                                           [*****]                             [*****]                        [*****]
FLORIDA                                            [*****]                             [*****]                        [*****]
GEORGIA                                            [*****]                             [*****]                        [*****]
IDAHO                                              [*****]                             [*****]                        [*****]
ILLINOIS                                           [*****]                             [*****]                        [*****]
INDIANA                                            [*****]                             [*****]                        [*****]
IOWA                                               [*****]                             [*****]                        [*****]
KANSAS                                             [*****]                             [*****]                        [*****]
KENTUCKY                                           [*****]                             [*****]                        [*****]
LOUISIANA                                          [*****]                             [*****]                        [*****]
MAINE                                              [*****]                             [*****]                        [*****]
MARYLAND                                           [*****]                             [*****]                        [*****]
MASSACHUSETTS                                      [*****]                             [*****]                        [*****]
MICHIGAN                                           [*****]                             [*****]                        [*****]
MINNESOTA                                          [*****]                             [*****]                        [*****]
MISSISSIPPI                                        [*****]                             [*****]                        [*****]
MISSOURI                                           [*****]                             [*****]                        [*****]
MONTANA                                            [*****]                             [*****]                        [*****]
NEBRASKA                                           [*****]                             [*****]                        [*****]
NEVADA                                             [*****]                             [*****]                        [*****]
NEW HAMPSHIRE                                      [*****]                             [*****]                        [*****]
NEW JERSEY                                         [*****]                             [*****]                        [*****]
NEW MEXICO                                         [*****]                             [*****]                        [*****]
NEW YORK                                           [*****]                             [*****]                        [*****]
NORTH CAROLINA                                     [*****]                             [*****]                        [*****]
NORTH DAKOTA                                       [*****]                             [*****]                        [*****]
OHIO                                               [*****]                             [*****]                        [*****]
OKLAHOMA                                           [*****]                             [*****]                        [*****]
OREGON                                             [*****]                             [*****]                        [*****]
PENNSYLVANIA                                       [*****]                             [*****]                        [*****]
RHODE ISLAND                                       [*****]                             [*****]                        [*****]
SOUTH CAROLINA                                     [*****]                             [*****]                        [*****]
SOUTH DAKOTA                                       [*****]                             [*****]                        [*****]
TENNESSEE                                          [*****]                             [*****]                        [*****]
TEXAS                                              [*****]                             [*****]                        [*****]
UTAH                                               [*****]                             [*****]                        [*****]
VERMONT                                            [*****]                             [*****]                        [*****]
VIRGINIA                                           [*****]                             [*****]                        [*****]
WASHINGTON                                         [*****]                             [*****]                        [*****]
WEST VIRGINIA                                      [*****]                             [*****]                        [*****]
WISCONSIN                                          [*****]                             [*****]                        [*****]
WYOMING                                            [*****]                             [*****]                        [*****]
</TABLE>

<PAGE>

                                  SCHEDULE CL-G
                         CLASSIC MILLENNIUM CANADA RATES

1+ Calls Originating in Contiguous U.S. and Terminating in Canada

<TABLE>
<CAPTION>
                                                      SWITCHLESS                       END-USER DED./ORIG.
                                                      ----------                       -------------------
<S>                                                   <C>                              <C>
Canada Region 1                                        [*****]                                [*****]
Canada Region 2                                        [*****]                                [*****]
Canada Region 3                                        [*****]                                [*****]
</TABLE>

Region (1) NPA's - 250, 416, 418, 450, 514, 519, 604, 613, 705, 807, 819, 905
Region (2) NPA's - 403, 780, 867, 886, 889, 902
Region (3) NPA's - 204, 306, 506, 709

Toll Free Calls Originating in Canada and Terminating in Contiguous U.S.

<TABLE>
<CAPTION>
                                                      SWITCHLESS                       END-USER DED./ORIG.
                                                      ----------                       -------------------
<S>                                                   <C>                              <C>
Canada-All Regions                                     [*****]                               [*****]
</TABLE>

Toll Free Calls Originating in Contiguous U.S. and Terminating in Canada

<TABLE>
<CAPTION>
                                                      SWITCHLESS                       END-USER DED./ORIG.
                                                      ----------                       -------------------
<S>                                                   <C>                              <C>
Toll Free from Contiguous U.S.                         [*****]                                N/A
</TABLE>

Toll Free Calls Originating in Extended Locations and Terminating in Canada

<TABLE>
<CAPTION>
                                                      SWITCHLESS                       END-USER DED./ORIG.
                                                      ----------                       -------------------
<S>                                                   <C>                              <C>
Toll Free from Alaska                                  [*****]                                 N/A
Toil Free from Guam                                    [*****]                                 N/A
Toll Free from Hawaii                                  [*****]                                 N/A
Toll Free from Puerto Rico                             [*****]                                 N/A
Toll Free from N Mariana Islands                       [*****]                                 N/A
Toll Free from US Virgin islands                       [*****]                                 N/A
</TABLE>

1+ Calls Originating in Hawaii and Terminating in Canada

<TABLE>
<CAPTION>
                                                      SWITCHLESS                       END-USER DED./ORIG.
                                                      ----------                       -------------------
<S>                                                   <C>                              <C>
Canada-All Regions                                     [*****]                                 N/A
</TABLE>

Canada calls are not eligible for discounts.

Canada calls are billed in 6 second increments with a 30 second minimum.

<PAGE>

                                  SCHEDULE CL-H
                         CLASSIC MILLENNIUM MEXICO RATES

1+ Calls Originating In the Contiguous U.S. and Terminating in Mexico

<TABLE>
<CAPTION>
                                                      SWITCHLESS                       END-USER DED./ORIG.
                                                      ----------                       -------------------
<S>                                                   <C>                              <C>
Mexico - All Bands (PEAK)                              [*****]                                [*****]
Mexico - All Bands (OFF PEAK)                          [*****]                                [*****]
</TABLE>

1+ Calls Originating in Hawaii and Terminating in Mexico

<TABLE>
<CAPTION>
                                                      SWITCHLESS                       END-USER DED./ORIG.
                                                      ----------                       -------------------
<S>                                                   <C>                              <C>
Mexico - All Bands (PEAK)                               [*****]                                 N/A
Mexico - All Bands (OFF PEAK)                           [*****]                                 N/A
</TABLE>

Mexico calls are not eligible for discounts.
Mexico calls are billed in 6 second increments with a 30 second minimum.
Peak is defined as 7:00 AM - 6:59 PM Monday through Friday and 5:00 PM - 11:59
PM Sunday
Peak times are based on where the call originates
All other times are Off-Peak

<PAGE>

                                  SCHEDULE CL-I
                          CLASSIC MILLENNIUM DIRECTORY
                                ASSISTANCE RATES

<TABLE>
<CAPTION>
DOMESTIC LOCATION                                             RATE
-----------------                                             ----
<S>                                                          <C>
Interstate                                                   [*****]
Intrastate                                                   [*****]
</TABLE>

<TABLE>
<CAPTION>
EXTENDED DOMESTIC LOCATION                                    RATE
--------------------------                                    ----
<S>                                                          <C>
Alaska                                                       [*****]
Guam                                                         [*****]
Hawaii                                                       [*****]
N. Mariana Islands                                           [*****]
Puerto Rico                                                  [*****]
US Virgin Islands                                            [*****]
</TABLE>

<TABLE>
<CAPTION>
CANADA LOCATION                                               RATE
---------------                                               ----
<S>                                                          <C>
Canada                                                       [*****]
</TABLE>

<PAGE>

                       TOLL FREE SERVICE FROM CANADA TO US

                              PROMOTIONAL AMENDMENT

Eligibility - The promotional terms described herein are available to all
customers who execute a Telecommunications Service Agreement (TSA), and an
Attachment for TERMINATION Service and/or an Attachment for SWITCHLESS/END USER
DEDICATED Services (i.e., either CLASSIC, ACCESS BASED BILLING, PRISM, or
TRANSCEND) along with this Promotional Amendment between August 15, 2001 and
November 15, 2001 (the Promotional Period). With respect to customers who are
currently receiving TERMINATION Service or SWITCHLESS/END USER DEDICATED
Services, the Special Pricing described herein is available provided the
customer executes this Promotional Amendment during the Promotional Period.

Terms - Commencing with the first of the month following the date this
Promotional Amendment is executed and delivered to MCI and continuing through
the end of the applicable Service Term (subject to the Modification of Charges
provision of the TSA), with respect to Toll Free calls from Canada to the 48
contiguous United States, customer will receive the applicable Special Pricing
shown on the Promotional Schedule attached hereto and incorporated herein by
reference.

Conditions - Except to the extent specifically described in this Promotional
Amendment, the terms and conditions set forth in the TSA, the applicable Program
Enrollment Terms and the applicable Attachments will continue in full force and
effect throughout the applicable Service Term.

Customer name: VALOR
TELECOMMUNICATIONS                  ACCESS BASED BILLING Service  Yes [ ] No [X]

Contact: DON PERKINS                CLASSIC Service               Yes [X] No [ ]

Phone: 972 373-1038                 ATF Service                   Yes [ ] No [X]

Email: DPERKINS@VALORTELECOM.COM    TRANSCEND Service             Yes [ ] No [X]

Sales Rep name: ALAN MURRELL

Phone: 918 590-6827

Email: ALAN.MURRELL@WCOM.COM

TSA/PET# VTE-001019

Customer Account Rep Name: CARDILLIA HARLIN

Phone: 630 795-6487

Email:
      --------------------------

I (undersigned) am an authorized agent of the account name listed above, and
agree to the terms and conditions set forth in this document.

/s/ William F. Kasdorf                                       9/10/01
----------------------------------                           --------
(Signature of Authorized Agent)                              Date Signed

/s/ James Foran                                              9/12/01
----------------------------------                           --------
(Signature of MCI WorldCom RSD)                              Date Signed

                                                                    MCI WORLDCOM

<PAGE>

                       TOLL FREE SERVICE FROM CANADA TO US
                               PROMOTIONAL PRICING
                 FOR ACCESS BASED BILLING AND CLASSIC CUSTOMERS

<TABLE>
<CAPTION>
                     TOLL FREE CANADA TO US
-------------------------------------------------------------

ORIGINATING                           CLASSIC & ABB
    FROM                                            CARR ORIG
    NPA                     SWITCHLESS                 /EUD
-------------------------------------------------------------
<S>                         <C>                     <C>
   204                        [*****]                [*****]
   250                        [*****]                [*****]
   289                        [*****]                [*****]
   306                        [*****]                [*****]
   403                        [*****]                [*****]
   416                        [*****]                [*****]
   418                        [*****]                [*****]
   450                        [*****]                [*****]
   506                        [*****]                [*****]
   514                        [*****]                [*****]
   519                        [*****]                [*****]
   604                        [*****]                [*****]
   613                        [*****]                [*****]
   647                        [*****]                [*****]
   705                        [*****]                [*****]
   709                        [*****]                [*****]
   778                        [*****]                [*****]
   780                        [*****]                [*****]
   807                        [*****]                [*****]
   819                        [*****]                [*****]
   867                        [*****]                [*****]
   902                        [*****]                [*****]
   905                        [*****]                [*****]
</TABLE>

August 2001                                                               1 of 1

<PAGE>

                     INTERNATIONAL TOLL FREE SERVICE (ITFS)
                 UNIVERSAL INTERNATIONAL FREEPHONE NUMBER (UIFN)
                                    SERVICE

                              PROMOTIONAL AMENDMENT

Eligibility - The promotional terms described herein are available to all
customers who execute a Telecommunications Service Agreement (TSA) and an
Attachment for INTERNATIONAL TOLL FREE Service (the ITFS Attachment) and/or an
Attachment for UNIVERSAL FREE PHONE (UIFN) Service (the UIFN Attachment),
whichever is applicable, along with this Promotional Amendment between August
15, 2001 and November 15, 2001 (Promotional Period). With respect to customers
who are currently receiving ITFS or UIFN Service, the Special Pricing described
herein is available provided the customer executes this Promotional Amendment
during the Promotional Period.

Terms - Commencing with the first day of the month following the date this
Promotional Amendment is executed and delivered to MCI and continuing through
the end of the applicable Service Term (subject to the Modification of Charges
provision of the TSA), customer will receive the Special Pricing for ITFS or
UIFN shown on Promotional Schedule 1 attached hereto and incorporated herein by
reference. Additionally, MCI agrees to waive the $175 International
Telecommunications Union (ITU) charge relative to any new UIFN Service Request
submitted during the Promotional Period.

Conditions - Except to the extent specifically described In this Promotional
Amendment, the terms and conditions set forth in the TSA, the applicable Program
Enrollment Terms and the ITFS Attachment or UIFN Attachment will continue in
full force and effect throughout the applicable Service Term.

Customer name: VALOR
TELECOMMUNICATIONS                   Classic, ABB, ATF, or ITFS  Yes [X]  No [ ]

Contact: DON PERKINS                 Classic, ABB, ATF, or UIFN  Yes [ ]  No [X]

Phone: 972 373-1038

Email: DPERKINS@VALORTELECOM.COM

TSA/PET# VTE-001019

Sales Rep name: ALAN MURRELL

Phone: 918 590-6827

Email: ALAN.MURRELL@WCOM.COM

Customer Account Rep Name: CARDILLIA HARLIN

Phone: 630 795-6487

Email:
      ------------------------------------

I (undersigned) am an authorized agent of the account name listed above, and
agree to the terms and conditions set forth in this document.

/s/ William F. Kasdorf                                 9/10/01
---------------------------------                      --------
(Signature of Authorized Agent)                        Date Signed

/s/ James Foran                                        9/12/01
---------------------------------                      --------
(Signature of MCI WorldCom RSD)                        Date Signed

                                                                    MCI WORLDCOM
<PAGE>

                           ITFS PROMOTIONAL SCHEDULE I
                          FOR ABB AND CLASSIC CUSTOMERS

<TABLE>
<CAPTION>
                                  Classic & ABB ITFS
                            Switchless           Carr Orig/EUD
                            ----------           -------------
<S>                         <C>                  <C>
Antigua                      [*****]                [*****]
Argentina                    [*****]                [*****]
Australia                    [*****]                [*****]
Bahamas                      [*****]                [*****]
Bahrain                      [*****]                [*****]
Barbados                     [*****]                [*****]
Belgium                      [*****]                [*****]
Bermuda                      [*****]                [*****]
Brazil                       [*****]                [*****]
Cayman Islands               [*****]                [*****]
Chile                        [*****]                [*****]
China                        [*****]                [*****]
Colombia                     [*****]                [*****]
Costa Rica                   [*****]                [*****]
Cyprus                       [*****]                [*****]
Denmark                      [*****]                [*****]
Dominican Republic           [*****]                [*****]
Ecuador                      [*****]                [*****]
Finland                      [*****]                [*****]
France                       [*****]                [*****]
Germany                      [*****]                [*****]
Greece                       [*****]                [*****]
Guatemala                    [*****]                [*****]
Guyana                       [*****]                [*****]
Hong Kong                    [*****]                [*****]
Hungary                      [*****]                [*****]
Indonesia                    [*****]                [*****]
Ireland                      [*****]                [*****]
Israel                       [*****]                [*****]
Italy                        [*****]                [*****]
Jamaica                      [*****]                [*****]
Japan Fixed                  [*****]                [*****]
Japan Mobile                 [*****]                [*****]
Luxembourg                   [*****]                [*****]
Malaysia                     [*****]                [*****]
Marshall Isl.                [*****]                [*****]
Mexico                       [*****]                [*****]
Monaco                       [*****]                [*****]
Netherlands                  [*****]                [*****]
Netherlands Antilles         [*****]                [*****]
New Zealand                  [*****]                [*****]
Nicaragua                    [*****]                [*****]
Norway                       [*****]                [*****]
Panama                       [*****]                [*****]
Peru                         [*****]                [*****]
</TABLE>

August 2001                                                               1 of 2

<PAGE>

                           ITFS PROMOTIONAL SCHEDULE I
                          FOR ABB AND CLASSIC CUSTOMERS

<TABLE>
<CAPTION>
                                  Classic & ABB ITFS
                            Switchless           Carr Orig/EUD
                            ----------           -------------
<S>                         <C>                  <C>
Philippines                  [*****]                [*****]
Poland                       [*****]                [*****]
Portugal                     [*****]                [*****]
Russia                       [*****]                [*****]
San Marino                   [*****]                [*****]
Singapore                    [*****]                [*****]
South Africa                 [*****]                [*****]
South Korea                  [*****]                [*****]
Spain Fixed                  [*****]                [*****]
Spain Mobile                 [*****]                [*****]
St. Kitts                    [*****]                [*****]
St. Lucia                    [*****]                [*****]
St. Vincent                  [*****]                [*****]
Sweden                       [*****]                [*****]
Switzerland                  [*****]                [*****]
Taiwan                       [*****]                [*****]
Thailand                     [*****]                [*****]
Trinidad &Tobago             [*****]                [*****]
Turkey                       [*****]                [*****]
Turks & Caicos Is.           [*****]                [*****]
United Kingdom               [*****]                [*****]
Uruguay                      [*****]                [*****]
</TABLE>

August 2001                                                               2 of 2

<PAGE>

                      1+ SWITCHED SERVICE (VOICE) TO CANADA

                              PROMOTIONAL AMENDMENT

Eligibility - The promotional terms described herein are available to all
customers who execute a Telecommunications Services Agreement (TSA), and an
Attachment for TERMINATION Service and/or an Attachment for SWITCHLESS/END USER
DEDICATED Services (i.e., either CLASSIC, ACCESS BASED BILLING, PRISM, or
TRANSCEND) along with this Promotional Amendment between August 15, 2001 and
November 15, 2001 (the Promotional Period). With respect to customers who are
currently receiving TERMINATION Service or SWITCHLESS/END USER DEDICATED
Services, the Special Pricing described herein is available provided customer
executes this Promotional Amendment during the Promotional Period.

Terms - Commencing with the first of the month following the date this
Promotional Amendment is executed and delivered to MCI and continuing through
the end of the applicable Service Term (subject to the Modification of Charges
provision of the TSA), with respect to calls from the 48 contiguous United
States to Canada, customer will receive the applicable Special Pricing shown on
the Promotional Schedule attached hereto and incorporated herein by reference.

Conditions - Except to the extent specifically described in this Promotional
Amendment, the terms and conditions set forth in the TSA, the applicable Program
Enrollment Terms and the applicable Attachments will continue in full force and
effect throughout the applicable Service Term.

Customer name: VALOR
TELECOMMUNICATIONS                 ACCESS BASED BILLING Service   Yes [ ] No [X]

Contact: DON PERKINS               CLASSIC Service                Yes [X] No [ ]

Phone: 972 373-1038                PRISM Service                  Yes [ ] No [X]

Email: DPERKINS@VALORTELECOM.COM   TRANSCEND Service              Yes [ ] No [X]

Sales Rep name: ALAN MURRELL

Phone: 918 590-6827

Email: ALAN.MURRELL@WCOM.COM

TSA/PET# VTE-001019

Customer Account Rep Name: CARDILLIA HARLIN

Phone: 630 795-6487

Email:
      --------------------------------
I (undersigned) am an authorized agent of the account name listed above, and
agree to the terms and conditions set forth in this document.

/s/ William F. Kasdorf                                          9/10/01
----------------------------------                              -------
(Signature of Authorized Agent)                                 Date Signed

/s/ James Foran                                                 9/12/01
----------------------------------                              -------
(Signature of MCI WorldCom RSD)                                 Date Signed

                                                                    MCI WORLDCOM
<PAGE>

                      1+ SWITCHED SERVICE (VOICE) TO CANADA
                               PROMOTIONAL PRICING
                 FOR ACCESS BASED BILLING AND CLASSIC CUSTOMERS

<TABLE>
<CAPTION>
                         1+ US TO CANADA
---------------------------------------------------------
TERMINATING
   TO                               CLASSIC & ABB
  NPA                      SWITCHLESS       CARR TERM/EUD
---------------------------------------------------------
<S>                        <C>              <C>
     204                     [*****]           [*****]
     250                     [*****]           [*****]
     289                     [*****]           [*****]
     306                     [*****]           [*****]
     403                     [*****]           [*****]
     416                     [*****]           [*****]
     418                     [*****]           [*****]
     450                     [*****]           [*****]
     506                     [*****]           [*****]
     514                     [*****]           [*****]
     519                     [*****]           [*****]
     604                     [*****]           [*****]
     613                     [*****]           [*****]
     647                     [*****]           [*****]
     705                     [*****]           [*****]
     709                     [*****]           [*****]
     778                     [*****]           [*****]
     780                     [*****]           [*****]
     807                     [*****]           [*****]
     819                     [*****]           [*****]
     867                     [*****]           [*****]
     902                     [*****]           [*****]
     905                     [*****]           [*****]
</TABLE>

August 2001                                                               1 of 1