Document:

<PAGE>
                                                                   Exhibit 10.17

                               FIRST AMENDMENT TO
                            MASTER SERVICES AGREEMENT

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.

         This First Amendment ("First Amendment") is effective as of the 1st day
of April, 2000 ("First Effective Date") and amends and supplements that certain
Master Services Agreement, as previously amended (the "Agreement") dated as of
the 9th day of December, 1999, by and between VALOR TELECOMMUNICATIONS
ENTERPRISES, LLC (as successor to Valor Telecommunications Southwest, LLC,
successor to dba Communications, LLC) ("Client") and ALLTEL INFORMATION
SERVICES, INC. ("ALLTEL").

                                   WITNESSETH:

         WHEREAS, during the period of time from April 1, 2000 through the First
Amendment Effective Date, ALLTEL has provided and Client has paid for Managed
Network Services as described in the Agreement and certain other network
services which are not described in the Agreement;

         WHEREAS, Client intended to perform on its own behalf at the inception
of the Agreement a portion of certain network services, some of which are
included within the Managed Network Services described in the Agreement, and to
purchase from ALLTEL certain equipment used by ALLTEL to perform such services;

         WHEREAS, Client has requested that ALLTEL continue to perform certain
network services with respect to WAN equipment which has not been included in
the Agreement;

         WHEREAS, the parties wish to clarify what Managed Network Services
shall be provided by ALLTEL, and the payments to be made in respect thereof, as
of the First Amendment Effective Date through the remainder of the Term of the
Agreement;

         NOW, THEREFORE, in consideration of the mutual promises and covenants
herein, the parties agree as follows:

1.       The parties acknowledge and agree that during the time period beginning
         on April 1, 2000 through the First Amendment Effective Date, ALLTEL has
         provided and Client has paid for Managed Network Services as described
         in the Agreement and certain other network services which were not
         described in the Agreement Client agrees that Client shall assert to
         claims against ALLTEL relating to the charges for the network services
         or any failure by ALLTEL to perform such network services prior to the
         First Amendment Effective Date.

2.       On the First Amendment Effective Date, Client shall pay to ALLTEL the
         amount of $[*****] for the WAN equipment listed in Attachment 1 to this
         Amendment, which is the net of the original cost of this equipment,
         less payments made by Valor during the term of the Agreement.

3.       Exhibit B (Managed Network Services) to the Agreement shall be deleted
         in its entirety and replaced with the attached Exhibit B in lieu
         thereof.

                                        1
<PAGE>

4.       The following new Section 2.4 shall be added to Exhibit E to the
         Agreement:

         "2.4     Fees for Additional Network Services. In addition to the fees
                  listed in this Section 2, Client shall pay ALLTEL for certain
                  Managed Network Services described in Exhibit B, for the
                  actual quantities of units for which services are provided, at
                  the unit prices listed in the table below ("Additional Network
                  Charges"); provided, however, that for so long as ALLTEL shall
                  provide such services to Client, the minimum number of units
                  for which Client shall pay ALLTEL shall be sixty (60).

                  (a)      FAULT MANAGEMENT AND PERFORMANCE MANAGEMENT. Monthly
                           Service Fees for Fault Management Services and for
                           Performance Management Services (as described in
                           Sections 2(a) and (b) of Exhibit B, respectively)
                           shall be determined on a per unit basis at the unit
                           prices set forth in the following table. The "Unit
                           Quantity" and "Totals" set forth in the following
                           table are for illustrative purposes and reflect the
                           quantities and totals as of April 1, 2001.

<TABLE>
<CAPTION>
                                             UNIT           FAULT MANAGEMENT          PERFORMANCE MANAGEMENT
      ALLTEL NOC            ELEMENT        QUANTITY     UNIT PRICE        TOTAL     UNIT PRICE          TOTAL
--------------------    ----------------   --------     ----------       ------     ----------         --------
<S>                     <C>                <C>          <C>              <C>        <C>                <C>
Carrier Class Router    75xx, 72xx, 6xxx   [*****]       $[*****]       $[*****]     $[*****]          $[*****]
Enterprise Class              36xx         [*****]        [*****]        [*****]      [*****]           [*****]
Router
Edge Class Router       16xx, 17xx, 26xx   [*****]        [*****]        [*****]      [*****]           [*****]
Access Server              53xx, 54xx      [*****]        [*****]        [*****]      [*****]           [*****]
PIX Firewall                515/520        [*****]        [*****]        [*****]      [*****]           [*****]
Access Class LAN              29xx         [*****]        [*****]        [*****]      [*****]           [*****]
                                           -------                       -------     --------
         Total                             [*****]        [*****]        [*****]      [*****]           [*****]
                                           -------                       -------                       --------
</TABLE>
                  (b)      Should ALLTEL provide transport services to any
                           locations other than those listed in Section 1(a) of
                           Exhibit B, for so long as ALLTEL shall provide any
                           such services for such other locations Client shall
                           pay ALLTEL for such services at the rate of ALLTEL's
                           cost plus three percent (3%) administrative fee. Upon
                           sixty (60) Days' prior written notice from Client,
                           ALLTEL shall cease providing such services.

                  (c)      Monthly Service Fees for network connection to
                           Architel, and WFM applications and AMA polling sites
                           is $[*****] per minute.

                  The monthly fees set forth above include the modem and
                  facilities to support switch interface software (such as
                  Architel software)."

5.       Section 2.3(b)(6) of Exhibit F is deleted in its entirety. (Section
         23(b)(6) has been replaced with Attachment B-1 of Exhibit B setting
         forth notification procedures for network outages.)

6.       Exhibit P to the Agreement is deleted in its entirety and replaced with
         the attached Exhibit P in lieu thereof.

7.       Section 22.14 of the Agreement (Separate Agreements) shall be deleted
         in its entirety.

                                        2
<PAGE>

8.       All capitalized terms not otherwise defined in this First Amendment
         shall have the same meaning set forth in the Agreement.

9.       Except as herein expressly amended, the Agreement as previously amended
         is ratified, confirmed and remains in full force and effect.

10.      All references to the Agreement shall mean as such Agreement is amended
         hereby and as may in the future be restated, supplemented or modified
         from time to time.

11.      This First Amendment may be executed by the parties hereto individually
         or in combination, in one or more counterparts, each of which shall be
         an original and all of which shall constitute one and the same
         agreement.

                         SIGNATURES FOLLOW ON NEXT PAGE

                                        3
<PAGE>

         IN WITNESS WHEREOF, the parties have executed this First Amendment as
of the First Amendment Effective Date by their duly authorized representatives.

ALLTEL INFORMATION SERVICES, INC.          VALOR TELECOMMUNICATIONS
                                           ENTERPRISES, LLC

By: /s/ John Milligan                      By: /s/ Kenneth R. Cole
    _______________________________            _______________________________

Name: John Milligan                        Name: Kenneth R. Cole
      _____________________________              _____________________________

Title: Operations Director                 Title: President & CEO
       ____________________________               ____________________________

                                        4
<PAGE>

                                 ATTACHMENT 1 TO
                                 FIRST AMENDMENT

                  NETWORK EQUIPMENT TO BE TRANSFERRED TO CLIENT
                      ON THE FIRST AMENDMENT EFFECTIVE DATE

On the First Amendment Effective Date, Client shall make payment for and ALLTEL
shall transfer to Client the ownership of the following network hardware and
equipment in accordance with Section 2 of the First Amendment:

<TABLE>
<CAPTION>
       DESCRIPTION                                SERIAL NUMBER
----------------------------                     ----------------
<S>                                              <C>
CISCO 3640 ROUTER                                JAB042386LE
CISCO 3640 ROUTER                                JAB0415867J
1 PORT WIC                                       18203162
1 PORT WIC                                       18203169
1 PORT WIC                                       18202879
1 PORT WIC                                       18203160
CISCO 3640 ROUTER                                364068036
CISCO 3620 ROUTER                                JPB040948AZ
CISCO 3640 ROUTER                                JAB040985Bl
3 MODULES                                        19654122,136&210
CISCO 3620 ROUTER                                JAB041887RH
8 PORT ASYNC                                     19638672
8 PORT ASYNC                                     196636048
CISCO 2611 ROUTER                                JAB041888F5
CISCO 2611 ROUTER                                JAB041888EX
CISCO 3640 ROUTER                                JAB041780HT
CISCO 3662 ROUTER                                JAB041382FN
2 Ethernet / 2 WAN card slot                     18781451
CISCO 3640-DC ROUTER                             JAB042989EH
CISCO 3662-DC ROUTER                             JAB042988ER
CISCO 2611-DC ROUTER                             JA8042888K8
CISCO 2611-DC ROUTER                             JAB042888T8
CISCO 2611-DC ROUTER                             JAB042888T9
CISCO 2611-DC ROUTER                             JAB042888N8
CISCO 2611-DC ROUTER                             JAB042888KJ
CISCO 2611-DC ROUTER                             JAB042888KL
CISCO 2611-DC ROUTER                             JAB042888TE
CISCO 2611-DC ROUTER                             JAB042888TD
CISCO 1604 ROUTER                                JMX04151JXG
CISCO 2611-DC ROUTER                             JAB042888KP
CISCO 2611-DC ROUTER                             JAB042888KM
CISCO 1604-R ROUTER                              25839882
CISCO 2611-DC ROUTER                             JAB042888K7
CISCO 2611-DC ROUTER                             JAB042888K6
CISCO 3640-DC ROUTER                             JAB042989EG
1 PORT FAST ETHERNET                             N/A
</TABLE>

                                        1
<PAGE>

<TABLE>
<CAPTION>
       DESCRIPTION                                SERIAL NUMBER
----------------------------                     ----------------
<S>                                              <C>
CISCO 3640 ROUTER                                JAB040984KF
CISCO 3640 ROUTER                                JAB041685SH
CISCO 2611 ROUTER                                JAB040888MS
CISCO 2611 ROUTER                                JAB040985EB
CISCO 3640 ROUTER                                JAB040984M2
CISCO 3640 ROUTER                                JAB04128GWV
CISCO 3640 ROUTER                                JAB040984N7
CISCO 3640 ROUTER                                JAB041685S5
CISCO 2611 ROUTER                                JAB041887FR
CISCO 1604 ROUTER                                JAB0421508D
CISCO 1604 ROUTER                                JAB0421508V
CISCO 2611 ROUTER                                JAB041888F4
CISCO 2611 ROUTER                                JAB041888F3
CISCO 2611 ROUTER                                JAB041888EW
CISCO 1604 ROUTER                                JAB04215085
CISCO 1604 ROUTER                                JAB0421508Z
</TABLE>

                                        2
<PAGE>

                                   "EXHIBIT B
                            MANAGED NETWORK SERVICES

This Exhibit describes the services, software and equipment that constitute the
"Managed Network Services."

1.       LOCATIONS.

         (a)      ALLTEL throughout the Term will provide the WAN and associated
                  Managed Network Services described in this Exhibit for the
                  T1's at the following locations:

                           -        2 T1's (B8ZS/ESF) from Texartana to Little
                                    Rock

                           -        3 T1's (B8ZS/ESF) from Dallas to Twinsburg.

         Unless the parties agree otherwise in writing, all references in the
         Agreement to WAN or Managed Network Services shall be limited to the
         locations set forth in this Section 1(a).

         (b)      Upon request of Client and as mutually agreed by the parties
                  in writing, ALLTEL will provide the WAN and associated Managed
                  Network Services for additional locations; provided, however,
                  ALLTEL shall have no obligation to provide services for such
                  additional locations unless or until Client has notified
                  ALLTEL in writing of the additional locations at which
                  services are to be provided.

         (c)      As of the First Amendment Effective Date, the Client-owned
                  network hardware and equipment is all hardware and equipment
                  not situated at the ALLTEL locations listed in Section 1(a) of
                  this Exhibit B.

         (d)      At any time on or after December 31, 2002, Client may
                  terminate the Managed Network Services described in Section 2
                  of this Exhibit B for all of the locations described in
                  Section 1(b) pursuant to Section 19.4 of the Agreement and
                  under the terms and conditions set forth in Exhibit P.

         (e)      In order for ALLTEL to provide the services described in this
                  Exhibit B. ALLTEL requires comprehensive and current listings
                  of all network devices. To that end, Client shall provide
                  ALLTEL in writing with a full list of all network devices
                  within ten (10) Days after executing the First Amendment.
                  Thereafter, for so long as ALLTEL shall provide services
                  pursuant to this Exhibit B, Client shall provide a listing of
                  new devices to be monitored to ALLTEL in writing on or before
                  the fifth (5th) Day of each month.

2.       DESCRIPTION OF MANAGED NETWORK SERVICES. ALLTEL shall perform the
         following Managed Network Services:

         (a)      FAULT MANAGEMENT SERVICES. ALLTEL shall perform the following
                  "Fault Management Services" for the locations set forth in
                  Sections 1(a) and (b) of this Exhibit B:

                                        1
<PAGE>

                  (i)      SINGLE POINT OF CONTACT. The ALLTEL Customer Service
                           Center will provide a single point of contact for
                           reporting trouble calls twenty-four (24) hours a Day,
                           seven (7) Days a week

                  (ii)     NETWORK MONITORING SERVICES. ALLTEL will provide WAN
                           monitoring services twenty-four (24) hours a day,
                           seven (7) Days a week. If problems experienced by
                           Client are of such a nature that they can be
                           diagnosed and corrected by ALLTEL remotely, ALLTEL
                           will diagnose and correct such problems on the WAN
                           twenty-four (24) hours a Day, seven (7) Days a week.

                  (iii)    FAULT MANAGEMENT. ALLTEL will provide a real-time,
                           graphics-oriented management of WAN devices and
                           associated communication links. If problems
                           experienced by Client are of such a nature that they
                           can be diagnosed and corrected by ALLTEL remotely,
                           fault management will include the detection,
                           isolation, diagnosis and correction of WAN problems.
                           Monitoring will include WAN attached devices that are
                           connected to a data circuit.

                  (iv)     PROBLEM MANAGEMENT. ALLTEL will manage the entire
                           life cycle of a WAN failure. The problem will be
                           tracked on a ticket management system from detection
                           to resolution, including the management of network
                           vendors and escalation will be performed in
                           accordance with Attachment B-1 to this Exhibit B.

         (b)      PERFORMANCE MANAGEMENT SERVICES. ALLTEL shall perform the
                  following "Performance Management Services" for the locations
                  set forth in Sections l(a) and (b) of this Exhibit B:

                  ALLTEL will provide the following monthly performance reports
                  (by network device) to Client no later than the twelfth (12th)
                  business Day of the subsequent calendar month:

                  (i)      EXECUTIVE SUMMARY REPORTS:

                           -   Network Bandwidth Utilization: This report shows
                               the average and peak utilization thresholds. This
                               information can help determine overall traffic
                               patterns which, in turn, helps to determine if
                               acceptable bandwidth is available from the
                               service provider.

                           -   WAN Availability: This report shows the
                               percentage availability of the WAN during a
                               specified period.

                           -   Network Trend: Rolling 12 months, predictive 6
                               months.

                  (ii)     INCIDENT TRACKING: This report shows the incident
                           classification, outage duration, description,
                           quantity and location of reported problems.

                                        2
<PAGE>

                  (iii)    ROUTER UTILIZATION: This report indicates congestion
                           points and tracks load, providing an early warning as
                           to when re-engineering or equipment upgrades may be
                           necessary.

                  (iv)     UTILIZATION REPORTS

                           -   Circuits (Frame UNIs, Point to Point on Routers)

                           -   Control Processors Units

                           -   Ethernet Port Utilization

                           -   Monthly Circuit Utilization - minimum granularity
                               is one hour

                           -   Peak Hour Utilization

                           -   Average Daily Utilization

                  (v)      TOP TEN OVER- AND UNDER-UTILIZED DEVICES

                  (vi)     NEAR REAL TIME VIEWS - HEALTH REPORT THROUGH THE
                           CONCORDE SYSTEM

                  (vii)    MONTHLY DEVICE OVERVIEW

                  (viii)   NETWORK-AVAILABILITY, MONTHLY, QUARTERLY

         (c)      ASSET MANAGEMENT SERVICES. ALLTEL shall perform the following
                  "Asset Management Services" only for the locations set forth
                  in Section 1(a) of this Exhibit B:

                  (i)      THIRD PARTY/LOAD CARRIER COORDINATION. ALLTEL will
                           coordinate the involvement of any third party for
                           maintaining their respective portions of the products
                           and services provided. For example, ALLTEL will
                           coordinate obtaining IXC/LEC support in the event
                           that a Frame Relay circuit problem is caused by the
                           local loop.

                  (ii)     CONFIGURATION MANAGEMENT. ALLTEL's and Client's
                           technical staff will coordinate to exchange
                           information and requirements needed to properly
                           configure WAN equipment. Such information may include
                           routing protocols, applications, traffic,
                           connectivity requirements, timeframes, the supported
                           interfaces, etc. Network device configurations will
                           then be stored in a database for use in
                           reconfigurations when necessary.

                  (iii)    EXECUTION OF WAN CHANGE REQUESTS. Change Orders for
                           WAN in-service or additional WAN services will be
                           input and tracked in the service request system.
                           ALLTEL will execute such WAN changes initiated by
                           Client according to the timeframes in Exhibit F.

                  (iv)     ASSET MANAGEMENT. ALLTEL will track the location of
                           equipment provided by ALLTEL as part of the Managed
                           Network Services and software levels, upgrading the
                           software as required.

                                        3
<PAGE>

3.       ROLES AND RESPONSIBILITIES. ALLTEL and Client responsibilities
         associated with the execution of Day-to-Day delivery and support of
         Managed Network Services are described below.

         3.1      ALLTEL ROLES AND RESPONSIBILITIES. In addition to the other
                  obligations set forth in this Exhibit, ALLTEL shall also be
                  responsible for the following activities for the indicated
                  locations:

                  (a)      For the locations set forth in Section 1(a):

                           (i)      Problem reporting;

                           (ii)     Trouble ticket handling;

                           (iii)    Customer notification;

                           (iv)     Escalation procedures; and

                           (v)      Support (1st level escalation, i.e. initial
                                    notification of problems).

                  (b)      For the locations set forth in Sections 1(a) and (b),
                           Network Operation Center (NOC), including:

                           (i)      Network monitoring and funk management;

                           (ii)     Problem management;

                           (iii)    Vendor dispatch (third-party); and

                           (iv)     Performance reporting.

                  (c)      For the locations set forth in Sections 1(a) and (b),
                           Daily network monitoring and problem resolution,
                           including availability reporting.

                  (d)      For the locations set forth in Sections 1(a) and (b),
                           Service management activities, including account and
                           service reviews.

         3.2      CLIENT RESOURCES AND RESPONSIBILITIES. Client shall provide
                  the following Client Resources:

                  (a)      Provide escalation/notification to the ALLTEL Network
                           Operations Center;

                  (b)      Providing the necessary contacts for financial
                           approvals and business planning;

                  (c)      Supporting ALLTEL, when needed, for timely resolution
                           of problems associated with the equipment for which
                           ALLTEL provides Fault Management Services;

                                        4
<PAGE>

                  (d)      Provide ALLTEL with Change Request Notifications;

                  (e)      Responding to ALLTEL's satisfaction survey and annual
                           network planning (to be conducted jointly with
                           ALLTEL).

                                        5
<PAGE>

                                 ATTACHMENT B-1
                              ESCALATION PROCEDURES

1.       NOTIFICATIONS.

         (a)      CRITICAL EVENT NOTIFICATION. ALLTEL will provide notification
                  for any and all critical circuit and router events within
                  fifteen (15) minutes of the event's occurrence. Notifications
                  will be conducted as follows:

                  -        Initial contact will be to Client's Information
                           Services Helpdesk (972-373-1009, or 877-795-7800, or
                           214-248-6126 [pager]) leave a message for callback if
                           forwarded to voicemail.

                  -        If there is no response from Client's Helpdesk within
                           fifteen (15) minutes, then WAN/LAN Operations On-Call
                           will be notified (pager 214-248-6125).

                  -        If there is no response from Client's WAN/LAN
                           Operations On-Call within 30 minutes, then Client's
                           WAN 2nd and 3rd Level Support will be notified (WAN
                           2nd Level Support 817-233-6945; WAN 3rd Level
                           Support: 817-354-0943).

         (b)      MAJOR EVENT NOTIFICATIONS. ALLTEL will provide notification
                  for any and all major circuit and routing events within
                  fifteen (15) minutes of the event's occurrence. Notifications
                  will conducted as follows:

                  -        Initial contact will be to Client's Information
                           Services Helpdesk (972-313-1009, or 877-795-7800, or
                           214-248-6126 [pager], leave a message for callback if
                           forwarded to voicemail.

                  -        If there is no response from Client's Helpdesk within
                           fifteen (15) minutes, then WAN/LAN Operations On-Call
                           will be notified (pager 214-248-6125).

                  -        If there is no response from Client's WAN/LAN
                           Operations On-Call within thirty (30) minutes, then
                           Client's WAN 2nd and 3rd Level Support will be
                           notified (WAN 2nd Level Support: 817-233-6945; WAN
                           3rd Level Support: 817-354-0943.

         (c)      MINOR EVENT NOTIFICATIONS - ALLTEL will provide notification
                  for any and all minor circuit and router events within (2)
                  hours of the event's occurrence. Notifications will conducted
                  as follows:

                  -        Initial contact will be to Client's Information
                           Services Helpdesk (972-373-1009, or 877-795-7800, or
                           214-248-6126 [pager]), leave a message for callback
                           if forwarded to voicemail.

                  -        If there is no response from Client's Helpdesk within
                           sixty (60) minutes, then WAN/LAN Operations On-Call
                           will be notified (pager 214-248-6125).

2.       3RD LEVEL ESCALATION. All critical and major router and circuit
         problems will be communicated to WAN 3rd Level Support if restoration
         has not been effected within ninety (90) minutes of the circuit or
         router experiencing problems.

                                        1
<PAGE>

3.       3RD LEVEL NOTIFICATION. All router and circuit problems will be
         communicated to 3rd Level Support within one-hundred twenty (120)
         minutes of the circuit or router experiencing problems with probable
         cause; proposed resolution and an estimated time to repair. This
         communication can be in the form of an email, if responses have been
         received by the Helpdesk and WAN/LAN Operations.

4.       30 DAY ROLLING UPTIME. Client desires a 99.86% uptime on all routes and
         routers in order to successfully conduct business. Therefore, during
         any trailing thirty (30) day period, any router or route that is not
         functional for more than sixty (60) minutes a special performance
         report shall be generated and distributed to Client's Vice President of
         Planning and Engineering, Manager of Network Services, Director of Data
         Engineering.

                                       2
<PAGE>

                                   "EXHIBIT P
                         TERMINATION OF CERTAIN SERVICES

1.       TERMINATED SERVICES. Following are the Services that may be terminated
         by Client during the Term in accordance with Section 19.4 of the
         Agreement:

         (a)      TABLE ADMINISTRATION as described in Exhibit J.

         (b)      FAULT MANAGEMENT SERVICES AND PERFORMANCE MANAGEMENT SERVICES
                  as described in Sections 2(a) and (b), respectively, of
                  Exhibit B for the locations set forth in Section 1(b) of
                  Exhibit B.

2.       EARLIEST EFFECTIVE DATE. The earliest effective date that Client may
         begin performing each Termination Service is as follows:

         (a)      For Table Administration, Client may begin performing the
                  Terminated Service no earlier than the first (1st) day of the
                  thirteenth (13th month following the Managed Operations
                  Commencement Date.

         (b)      For the termination of the Fault Management Services and.
                  Performance Management Services as described in Sections 2(a)
                  and (b), respectively, of Exhibit B for the locations set
                  forth in Section 1(b) of Exhibit B may occur at any time after
                  December 31, 2002.

3.       NOTICE PERIOD. Client shall give prior written notice of the
         termination of the Terminated Services by the following time periods:

         (a)      For Table Administration, notice at least ninety (90) Days
                  prior to the date effective date of the termination of those
                  Terminated Services.

         (b)      For Fault Management Services and Performance Management
                  Services as described in Sections 2(a) and (b), respectively,
                  of Exhibit B for the locations set forth in Section 1(b) of
                  Exhibit B, Client shall give ALLTEL at least sixty (60) Days
                  written notice of the termination date of those Terminated
                  Services.

4.       REDUCTION IN SERVICE FEES. The going forward reduction Service Fees for
         each Terminated Service is as follows:

         (a)      For Table Administration, the Minimum Resource Level for Table
                  Administration shall be zero (0) and Client shall no longer be
                  required to pay the Service Fees for the functional category
                  of Table Administration calculated :in accordance with Section
                  5.3 of Exhibit E after the date of termination of the services
                  for Table Administration provided by the Variable Staff
                  (except to the extent of Service Fees incurred prior to the
                  termination date).

         (b)      For Fault Management Services and Performance Management
                  Services as described in Section 2 of Exhibit B for the
                  locations set forth in Section 1(b) of

                                       1
<PAGE>

                  Exhibit B, the Service Fees shall be reduced by the Monthly
                  Service Fees for such Services described in Section 2.4(a) of
                  Exhibit E.

5.       TERMINATION FEES. The termination fees payable by Client to ALLTEL
         which shall be prorated if appropriate in connection with each
         Terminated Service are as follows:

         (a)      For Table Administration, no termination fee.

         (b)      For Fault Management Services and Performance Management
                  Services as described in Sections 2(a) and (b), respectively,
                  of Exhibit B for all of the locations set forth in Section
                  1(b) of Exhibit B, no termination fee.

                                       2<PAGE>
                                                                   Exhibit 10.18

                               SECOND AMENDMENT TO
                            MASTER SERVICES AGREEMENT

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.

         This Second Amendment ("Second Amendment") is effective as of the first
day of April, 2000 ("Second Amendment Effective Date") and amends and
supplements that certain Master Services Agreement, as amended (the "Agreement")
dated as of the 9th day of December, 1999, by and between VALOR
TELECOMMUNICATIONS ENTERPRISES, LLC (as successor to Valor Telecommunications
Southwest, LLC, successor to dba Communications, LLC) ("Client") and ALLTEL
INFORMATION SERVICES, INC. ("ALLTEL").

                                   WITNESSETH:

         WHEREAS, Client desires to obtain additional services from ALLTEL and
ALLTEL is willing to provide such services pursuant to the terms and conditions
contained herein;

         NOW, THEREFORE, in consideration of the mutual promises and covenants
herein, the parties agree as follows:

1.       The following new Section 2.5 shall be added to Exhibit E to the
         Agreement:

         "2.5     HARDWARE, SOFTWARE AND SUPPORT FOR SWITCH INTERFACE SOFTWARE.
                  ALLTEL shall acquire the following hardware, operating system
                  software, and support required for switch interface software
                  (such as Architel's switching activation software) on Client's
                  behalf: N9000 2cpu/3GB memory with local failover support and
                  miscellaneous software; 40 GB of storage; UNIX support; backup
                  services; maintenance (including software maintenance); and
                  related Oracle software licenses. Commencing April 1, 2000,
                  Client shall pay the following monthly Service Fees for such
                  hardware, software and support:

<TABLE>
<CAPTION>
                                                             MONTHLY FEES*
                                                             -------------
<S>                                                          <C>
April 1, 2000 through March 31, 2003                           $[*****]
April 1, 2003 and thereafter**                                 $[*****]***
</TABLE>

         *        The monthly fees set forth in this Section are based on the
                  assumption there will be no more than 550,000 Access Lines and
                  no more than 90 switches. If that assumption is materially
                  incorrect, ALLTEL and Client shall negotiate in good faith an
                  equitable adjustment to such fees.

         **       Client may cancel these Services, without penalty or
                  additional fees, at any time after April 1, 2003 by thirty
                  (30) Days' written notice to ALLTEL.

         ***      The monthly fees after March 31, 2003 are based on the
                  assumption that the same hardware and software can be used,
                  without upgrade. If that assumption is incorrect, ALLTEL and
                  Client shall negotiate in good faith an equitable adjustment
                  to such fees.

         The monthly fees set forth above include "Disaster Recovery Services",
         as provided for in Exhibit K.

                                        1
<PAGE>

2.       The following new Section 4 shall be added to Exhibit A to the
         Agreement:

         "4.      TIME MANAGEMENT SYSTEM. ALLTEL shall implement and support (in
                  the form of regular software upgrades and patches) ALLTEL's
                  Time Management System Software ("Time Management System")
                  which shall be used to track time for Client employees. ALLTEL
                  will provide one (1) interface from WFM to the Time Management
                  System. Valor shall have one (1) location, corporate
                  headquarters for the Time Management System. Time Management
                  System located at corporate headquarters will have an
                  automated interface to Pro-Business. The Time Management
                  System functionality described below will be implemented by
                  July 1, 2000, except for Short Term Disability and FMLA
                  Tracking and Reporting enhancements which are scheduled for
                  completion on August 1, 2000. ALLTEL will provide on-site
                  support for the Time Management System for a period of one (1)
                  week following the initial installation.

         "4.1     FUNCTIONALITY. THE FUNCTIONALITY PROVIDED BY THE CORE TIME
                  MANAGEMENT SYSTEM SOFTWARE IS:

                  -        LAN or PC based software;

                  -        Multi-user software;

                  -        32 bit processing software;

                  -        Manual input;

                  -        Mechanized input;

                  -        Mechanized input error correction;

                  -        Feed to Payroll system;

                  -        Validation of input date through maintenance tables;

                  -        Manual updates of maintenance tables;

                  -        Site specific table;

                  -        Inquiry function;

                  -        Daily time summary report;

                  -        Query report;

                  -        Weekly status report;

                  -        Mechanized input error report;

                  -        Reports saved as HTML for web reporting;

                  -        Utilities to re-index tables;

                  -        Utilities to pack tables;

                  -        Utilities to purge data from tables;

                  -        Utilities to release data;

                  -        Utilities to re-release data;

                  -        Utilities to set security levels;

                  -        Utilities to set user and user's security levels;

                  -        Utilities for online help; and

                  -        Utilities to update the online help.

                                        2
<PAGE>

         4.2      ENHANCEMENTS. Additionally, ALLTEL will provide Client with
                  the following enhancements to the core Time Management System
                  software, including:

                  -        Customized WFM import to match Client format;

                  -        Customized timesheet screen to match Client format;

                  -        Customized export to Pro-Business;

                  -        Work order validation;

                  -        Union order validation;

                  -        Union validation;

                  -        Exception Job Class Code rate logic;

                  -        Sick pay processing; and

                  -        Short Term Disability and FMLA Tracking and
                           Reporting.

                  ALLTEL will provide Client spreadsheet import capability
                  through Change Control. Spreadsheet import capability is not
                  within the scope of the 706 man-hours as set forth in 4.3
                  below.

         4.3      CUSTOMIZATION. ALLTEL will provide up to 706 man-hours of
                  development services to configure the Time Management System
                  for Client's use. The 706 man-hours of software development
                  services will provide the following types of customization:

                  -        Customization of report headings, menus and forms;

                  -        Definition of internal tables; and

                  -        Testing of the interface between the WFM and Payroll
                           system.

                  Customization exceeding the 706 man-hours (including new
                  reports, etc.) will be provided upon Client's written request
                  through the SER process for the Service Fees set forth in
                  Exhibit E.

         4.4      CLIENT RESPONSIBILITIES. Client is responsible for providing
                  Client employees and contractors with the appropriate desktop
                  PCs needed to access and utilize the Time Management System.
                  ALLTEL will assist Client's LAN Administrator with loading of
                  the Time Management System icon and loading of the directories
                  onto Client's LAN. ALLTEL will also assist with initial
                  operator setup. Client is responsible for the nightly backup
                  on the LAN to include the Time Management System data."

3.       The following new Section 2.4 shall be added to Exhibit E to the
         Agreement.

         "2.4     SERVICE FEES FOR TIME MANAGEMENT SYSTEM. ALLTEL shall provide
                  the Time Management System described in Section 4 of Exhibit A
                  and as compensation therefore, Client shall pay the following
                  Service Fees:

                                        3
<PAGE>

                  License Fee (includes the 706 man-hours of development
                  services described in Section 4.3 of Exhibit A)       $[*****]

                  Monthly Support(, July 1 through December 31, 2000    $[*****]
                  Monthly Support **, January 1, 2001 through July
                  31, 2005                                              $[*****]

                  *        Assumes that ALLTEL resources needed to provide
                           support will not exceed one (1) FTE.

                  **       Assumes that ALLTEL resources needed to provide
                           support will not exceed one-half (.5) FTE.

                  If the initial development of the Time Management System
                  requires in excess of 706-man-hours or the ALLTEL resources
                  required to perform the monthly support exceed the FTE
                  assumptions set forth above or if Client requests software
                  customizations or capacity in excess of that described in
                  Section 4 of Exhibit A, ALLTEL shall provide such additional
                  resources at the rates per hour set forth in Section 5.1 of
                  Exhibit E for Application Services and Development Variable
                  Staff. All related travel and materials shall be invoiced as a
                  Pass-Through Expense.

4.       The following new Section 8 shall be added to Exhibit M. to the
         Agreement:

         "8.      TRAINING ROOM PC DEPLOYMENT PROJECT. ALLTEL will install,
                  configure and test certain ALLTEL Software and ALLTEL-Provided
                  Third Party Software on Client's training personal computers
                  ("PCs") in the "Training Facilities" (as set forth below) as
                  described in this Section 8. ALLTEL will also provide
                  technical support for each Training Facility as described in
                  this Section 8. The testing to be performed is to verify that
                  each PC has connectivity to ALLTEL's training databases and
                  that the ALLTEL Software and ALLTEL-Provided Third Party
                  Software is properly configured. The Services described in
                  this section to be performed by ALLTEL shall be referred to as
                  the "Training Deployment Services".

                  8.1      ALLTEL RESPONSIBILITIES.

                           (a)      SOFTWARE. ALLTEL will install, configure and
                                    test the following ALLTEL Software, or
                                    ALLTEL Provided Third Party Software on
                                    Client PCs: ASAP, CCS, MIROR, CAMS, RVS,
                                    E91, TARP & Frontware, and CABS. ALLTEL will
                                    also load its training image which consists
                                    of NT 4.0 SP5, Glink v6.16, EDM v4.0,
                                    Hummingbird v6.2, and Oracle client v8.05.

                           (b)      FORMS. ALLTEL will develop the following
                                    forms:

                                        4
<PAGE>

                                    (i)      SOFTWARE COMPLETION FORM. ALLTEL
                                             will develop a Software Completion
                                             Form that will serve as a checklist
                                             of criteria to verify proper
                                             configuration and operation of the
                                             PCs for correct communications with
                                             the ALLTEL network for training.
                                             The content may include, but is not
                                             limited to the following:

                                             -    Workstation setup procedures;

                                             -    Workstations able to connect
                                                  to the server; and

                                             -    Workstation boot up process
                                                  with no error messages.

                                    (ii)     WEEKLY STATUS REPORTS. ALLTEL will
                                             prepare a weekly status report for
                                             Client's Project Manager describing
                                             work completed, work in progress,
                                             and any critical issues pertaining
                                             to the deployment project's
                                             completion.

                                    (iii)    FINAL STATUS REPORT. ALLTEL will
                                             provide a Final Status Report
                                             outlining ALLTEL's activities and
                                             describing the status of tasks
                                             associated with the deployment
                                             project. Significant
                                             accomplishments and problems will
                                             be identified. The Final Status
                                             Report may also include the
                                             following:

                                             -    All workstations communicating
                                                  to the ALLTEL network;

                                             -    Software application
                                                  deployment is operational;

                                             -    Detailed documentation
                                                  delivered;

                                             -    3270 access to IBM Host;

                                             -    Project change control
                                                  summary; and

                                             -    Problems, concerns, and
                                                  recommendations.

                           (c)      On-Site Support. An ALLTEL LAN/Desktop
                                    Support staff person will be on-site for
                                    each initial training class at each
                                    different Training Facility for two (2) Days
                                    of ALLTEL Software training. An ALLTEL
                                    LAN/Desktop Support staff person will be
                                    on-site for each subsequent class at each
                                    different Training Facility one (1)-day
                                    prior to the start of class and the first
                                    day of ALLTEL Software training.

         8.2      TRAINING FACILITIES. ALLTEL will provide the Training
                  Deployment Services at the following "Training Facilities".

                  -        Technology Training Center, 1400 Commerce Dr.,
                           Carlsbad, NM;

                  -        N New Mexico Community College, 1002 N. Onate St.
                           Espanola, NM;

                  -        Texarkana College, 2500 N Robinson Rd., Texarkana,
                           TX; Client Corporate headquarters in Irving, TX;

                                        5
<PAGE>

                  -        Tulsa Tech Center, 3638 S Memorial Dr., Tulsa, OK;

                  -        Broken Arrow Assignment Center, 2300 S. First Street,
                           Broken Arrow, OK;

                  -        Dallas, Texas (ALLTEL site), 4455 LBJ Fwy Suite 1100,
                           Dallas, TX; and

                  -        Woltcom - TBD.

         8.3      CLIENT RESPONSIBILITIES.

                  (a)      PC. Client will provide all PCs (including monitors)
                           as indicated:

                           -        Client HQ in Irving, HQ: 15 Compaq PIII
                                    450-500MHZ, 64MB Ram, CD-ROM, 10/100nic,
                                    17"monitor

                           -        Texarkana: 64 Compaq PIII 450-500MHz, 64MB
                                    Ram, CD-ROM, 10/100nic, 17"monitor

                           -        Carlsbad: 64 Generic PIII 450MHz, 64MB Ram,
                                    CD-ROM, 10/100 nic, 17"monitor

                           -        Espanola: 31 Gateway PIII 450MHz, 64MB Ram,
                                    CD-ROM, 10/100 nic, 17"monitor

                           -        Tulsa Tech Center: 16 HP Vectra PIII 450MHz,
                                    64MB Ram, CD-ROM, 10/100 nic, 17"monitor

                           -        Broken Arrow Assignment Center: 6 Compaq
                                    PIII 450-500 MHz, 64MB Ram, CD-ROM, 10/100
                                    nic, 17"monitor

                           -        Dallas (ALLTEL site):

                           -        Woltcom: To be mutually agreed by the
                                    parties.

                  (b)      All Category 5 patch cables are certified from WAN
                           termination, Router, Hub and to PC provided and
                           installed by the Client as indicated on project
                           schedule.

                  (c)      All ALLTEL Software and ALLTEL-Provided Third Party
                           Software loaded by ALLTEL will be removed from all
                           training room PCs and servers at the conclusion of
                           training. This will be carried out by Client
                           employees and not handled by contracting staff or
                           college staff.

                  (d)      Client will be [________] complete the removal of the
                           ALLTEL Software and ALLTEL-Provided Third Party
                           Software no later than three (3) Days after training
                           has concluded at each Training Facility. Within five
                           (5) Days of the completion of training, Client will
                           confirm in writing that ALLTEL Software and
                           ALLTEL-Provided Third Party Software has been removed
                           from the Training Facilities. The project
                           coordination for removing ALLTEL Software and
                           ALLTEL-Provided Third Party Software from training
                           sites will be coordinated by ALLTEL.

                                       6
<PAGE>

                  (e)      Client or Client's vendor will have the PCs shipped
                           and setup at each training site prior to the arrival
                           of ALLTEL staff as indicated by schedule.

         8.4      ASSUMPTIONS. The estimated fees and schedules for the Training
                  Deployment Services are based on the following assumptions:

                  (a)      ALLTEL is not responsible for infrastructure or PC
                           equipment and components that are not in place and
                           functioning prior to ALLTEL's commencement of the
                           Training Deployment Services.

                  (b)      All connectivity equipment will be installed and
                           setup in working order prior to the arrival of ALLTEL
                           resources as indicated on project schedule.

                  (c)      ALLTEL is not responsible for replacement training
                           PCs if the PCs break.

                  (d)      ALLTEL is not responsible for the original PC image
                           of the Training Facilities' PCs.

                  (e)      Adequate numbers of ports for training will be
                           configures for each classroom as describe din
                           training schedule.

                  (f)      Server shipped by CompuCom will be delivered to
                           appropriate site on time per schedule as follows:

<TABLE>
<S>                         <C>
Irving                       5/22/2000
Texarkana                    5/15/2000
Carlsbad                     5/10/2000
Espanola                     5/02/2000
Broken Arrow (Tulsa)         5/30/2000
Dallas (ALLTEL)              4/24/2000
</TABLE>

                           Woltcom server will be available to ALLTEL by 5/2/00.

                  (g)      Servers configured by CompuCom will be configured
                           correctly and in working order with Windows NT v4.0
                           with Service Pack 5.

                  (h)      A stand by server will be configured and available to
                           be shipped for next day delivery by Client or
                           Client's Vendor if there is a problem with a server.

                  (i)      ALLTEL staff has full administrative rights and
                           access to all Training Facility servers and PCs.

                  (j)      There will be only one training room setup task for
                           each Training Facility. There are no breakdown and
                           re-setup tasks to be performed by ALLTEL.

                                       7
<PAGE>

                  (k)      PC count includes on trainer for each class.

                  (l)      No printer requirements have been identified. The
                           Training Facility is responsible for any future
                           network printer needs.

                  (m)      There is a phone in each training room that provides
                           ALLTEL access during server and PC setup and
                           configuration.

                  (n)      Once the server and all PCs at a training sit are
                           configured and tested, on one will have the
                           authorization to install software or make any changes
                           without ALLTEL approval.

                  (o)      All changes to the project will be scheduled and
                           approved via the Change Management Request process.

                  (p)      If the training schedule changes after 4/27/00,
                           ALLTEL will reevaluate the number of hours required
                           to support the training effort."

5.       The following new Section 4.6 shall be added to Exhibit E to the
         Agreement:

         "4.6     TRAINING DEPLOYMENT SERVICES. ALLTEL will provide the Training
                  Deployment Services described in Section 8 of Exhibit M for
                  the following rates and charges:

                  Weekday (non-holiday), 8:00 a.m.-5:00 p.m.: $[*****] per man
                  hour for project management. Estimated project management man
                  hours are 600.

                  Weekday and Weekends (non-holiday), 8:00 a.m.-5:00 p.m.
                  schedule: $[*****] per hour for ALLTEL Technicians. Estimated
                  hours are 2,850.

                  In the event that any of the assumptions set forth in Section
                  8.4 of Exhibit M is materially incorrect or Client fails to
                  timely perform any of its responsibilities set forth in
                  Section 8.3 of Exhibit M, and ALLTEL's performance of the
                  Training Development Services is negatively impacted as a
                  result, ALLTEL reserves the right to adjust the project
                  schedule for the Training Development Services or increase the
                  rates charged by ALLTEL accordingly.

                  All travel and related expenditures will be invoiced to Client
                  as Pass-Through Expense."

6.       All capitalized terms not otherwise defined in this second Amendment
         shall have the same meaning set forth in the Agreement.

7.       Except as herein expressly amended, the Agreement as previously amended
         is ratified, confirmed and remains in full force and effect.

8.       All references to the Agreement shall mean as such Agreement is amended
         hereby and as may in the future be amended, restated, supplemented or
         modified from time to time.

                                        8
<PAGE>

9.       This Second Amendment may be executed by the parties hereto
         individually or in combination, in one or more counterparts, each of
         which shall be an original and all of which shall constitute one and
         the same agreement.

         IN WITNESS WHEREOF, the parties have executed this Second Amendment as
of the Second Amendment Effective Date by their duly authorized representatives.

ALLTEL INFORMATION SERVICES,               VALOR TELECOMMUNICATIONS ENTERPRISES,
INC.                                       LLC

By: /s/ Roger Leitner                      By:  /s/ Kenneth R. Cole
    _______________________________            _____________________________

Name: /s/ Roger Leitner                    Name:    Kenneth R. Cole
      _____________________________              ___________________________

Title:                                     Title: President & CEO
       ____________________________              ___________________________

                                       9

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