EXECUTION COPY

                                 MASTER SERVICES
                                    AGREEMENT

                                     BETWEEN

                   CONVERGYS INFORMATION MANAGEMENT GROUP INC.

                                       AND

                          DOBSON CELLULAR SYSTEMS, INC.







<PAGE>


12

              Confidential and Proprietary to Convergys and Client

                                TABLE OF CONTENTS
1.0     WORK STATEMENT.....................................................2
2.0     TERM...............................................................2
3.0     PAYMENT TERMS; BILLING; TAXES; PAYMENTS AND DISPUTES...............3
4.0     EXCLUSIVITY........................................................4
5.0     MINIMUM PROCESSING COMMITMENT......................................4
6.0     ISSUE MANAGEMENT SERVICES..........................................5
7.0     RECORD KEEPING AND AUDIT RIGHTS....................................5
8.0     SERVICE LEVEL AGREEMENTS...........................................5
9.0     RELATIONSHIP MANAGEMENT............................................6
10.0    CONFIDENTIALITY AND NONDISCLOSURE; PUBLICITY.......................7
11.0    EQUIPMENT..........................................................8
12.0    DATA BACKUP........................................................8
13.0    SECURITY REPRESENTATION............................................8
14.0    DISASTER RECOVERY..................................................9
15.0    OWNERSHIP OF INTELLECTUAL PROPERTY.................................9
16.0    CLIENT RESPONSIBILITIES...........................................10
17.0    WARRANTIES........................................................11
18.0    TERMINATION FOR DEFAULT...........................................12
19.0    OPTION TO TERMINATE FOR CHANGE IN CONTROL.........................13
20.0    LIMITATION OF LIABILITY...........................................13
21.0    IMPROVEMENTS......................................................14
22.0    COMPANY AND WORK RULES, RELATIONSHIP OF THE PARTIES...............14
23.0    RIGHT OF ACCESS; COOPERATION......................................15
24.0    COMPLIANCE WITH LAWS..............................................15
25.0    INDEMNIFICATION AND DEFENSE.......................................15
*
27.0    INSURANCE.........................................................17
28.0    DISPUTE RESOLUTION................................................17
29.0    OBLIGATIONS UPON TERMINATION......................................18
30.0    ASSIGNMENT........................................................19
31.0    FORCE MAJEURE.....................................................20
32.0    LICENSES..........................................................20
33.0    APPLICABLE LAW AND BINDING EFFECT.................................20
34.0    NOTICES...........................................................20
35.0    SEVERABILITY......................................................21
36.0    WAIVER; AMENDMENT.................................................22
37.0    SURVIVAL OF RIGHTS AND OBLIGATIONS................................22
38.0    HIRING OF EMPLOYEES...............................................22
39.0    SECTION AND PARAGRAPH HEADINGS....................................22
40.0    CONFLICTING TERMS.................................................22
41.0    COMPANION AGREEMENTS..............................................23
42.0    ENTIRE AGREEMENT..................................................23
   ATTACHMENT A............................................................1
   ATTACHMENT B............................................................1

<PAGE>

                            MASTER SERVICES AGREEMENT

This Master Services Agreement ("MSA") is effective December 1, 2002 ("Effective
Date") between Convergys Information Management Group Inc., an Ohio corporation,
with offices located at 600 Vine Street, Cincinnati Ohio 45202 ("Convergys"),
and Dobson Cellular Systems, Inc., an Oklahoma corporation with an office at
14201 Wireless Way, Oklahoma City, Oklahoma 73134 ("Client").

1.0  WORK STATEMENT

     1.1. Convergys  shall  furnish  Services to Client in  accordance  with and
          subject  to the  terms  and  conditions  stated  herein or in any Work
          Order.

     1.2. Each Work Order shall contain the following information;

          1.2.1. The effective date and the term of the Work Order;

          1.2.2. A detailed description of the Services;

          1.2.3. The schedule and timeframe for the Services to be performed;

          1.2.4. A description of each party's responsibilities;

          1.2.5. A  description  of SLAs  related  to the  Services  in the Work
                 Order.

          1.2.6. A schedule of fees and charges.

          1.2.7. A  description  of  the  business  requirements  and  technical
                 specifications for the Services, where applicable.

          1.2.8. Acceptance Criteria, if any, related to such Work Order.

          1.2.9. Any other information  pertinent to the Services covered by the
                 Work Order.

          1.2.10.The   signatures   of  Client   and   Convergys'   authorized
                 representatives.

2.0  TERM

     The term of this Agreement shall commence on the Effective Date and shall
     continue, pursuant to the terms of Section 18.0 or 19.0, below until the
     later of (a) sixty (60) months after the Commercial Launch Date, or (b) the
     expiration or termination date of any unexpired Work Order entered into or
     incorporated under this Agreement.


3.0  PAYMENT TERMS; BILLING; TAXES; PAYMENTS AND DISPUTES

     3.1. General. Convergys shall invoice Client and Client shall pay to
          Convergys the fees and charges set forth in this Agreement. Charges
          for Services are subject to change, but only as specified in this
          Agreement.

     3.2. Professional Services Rate. Except as otherwise set forth in a
          specific Work Order, Convergys shall invoice Client and Client shall
          pay Convergys for Professional Services at a rate of * per hour.

     3.3. Pass-Through Expenses. Convergys shall invoice and Client shall pay
          Convergys for expenses incurred in the performance of the Services
          outside of ordinary Data Processing Services and designated as
          cost-plus expenses in a Work Order at cost plus a * administrative
          charge. Convergys shall provide to Client, upon request, the original
          invoice for each such expense, together with a statement that
          Convergys has reviewed the invoiced charges, determined which charges
          are proper and valid. Pass-through expenses may include, for example:
          courier charges, express mail charges, off-site storage charges,
          tapes, CDROMs, communication/network lines specifically requested by
          Client, additional hardware and software for environments not listed
          in Section 3.0 of Work Order 2002-01, and bill finisher special
          services fees such as pulled statements, insert handling, microfiche
          copies and the like.

     3.4. Invoice Date. Unless otherwise specified in a Work Order, the fees and
          charges for Services rendered to Client hereunder shall be invoiced by
          Convergys monthly after monthly processing has been completed or
          Professional Services rendered. Payments made pursuant to Work Order
          2002-01 shall be made on a milestone basis pursuant to Section 7.0 of
          Work Order 2002-01 and Professional Services projects estimated to be
          in excess of five hundred (500) hours may be invoiced on a milestone
          basis in accordance with the following table or as otherwise agreed by
          the parties.

          *

     3.5. Payment Date. All invoices shall be due and payable thirty (30) days
          from the date of the invoice. All invoices and payments shall be in
          U.S. dollars. Client shall pay a late charge of one and one half
          percent (1.5%) per month on the undisputed portion of any past due
          invoice until such past due amount is paid.

     3.6. Disputed Payments. If Client disputes any of the amounts set forth in
          any invoice rendered by Convergys hereunder, Client shall notify
          Convergys in writing within 30 days following the Payment Date,
          provided Client provides Convergys with a written statement of the
          basis of the dispute in reasonable detail (the "Dispute Notice").
          Client shall pay all undisputed charges on or before the Payment Date.
          The parties agree to negotiate in good faith for the purpose of
          resolving such dispute. In the event such dispute is mutually agreed
          upon and resolved, either Client will pay the disputed amount within
          10 days, or Convergys will issue a credit memo on the next invoice to
          Client. In the event that a dispute is not resolved within 60 days
          following Convergys' receipt of the Dispute Notice despite the good
          faith efforts of the parties, the parties shall have the right to
          submit such dispute to the dispute resolution process set forth in
          Section 28.0 below.

     3.7. Taxes. Client agrees to pay all taxes, however designated (excluding
          taxes based upon Convergys' net income) imposed on or based upon the
          provision of Services hereunder. If any such taxes or assessments are
          required to be collected and/or paid by Convergys, then Client agrees
          to reimburse Convergys for the taxes and costs incurred in collection,
          including reasonable attorney fees.

4.0  EXCLUSIVITY

     4.1. Convergys shall be the exclusive provider of the Services with respect
          to the Client Markets and any Markets or portions of Markets acquired
          by Client after the Effective Date. For Markets acquired by Client
          after the Effective Date, the parties will agree upon a schedule to
          transition Subscribers in acquired Markets to the System as soon as
          reasonably possible. *

5.0  MINIMUM PROCESSING COMMITMENT

     5.1. During the Term of the Agreement, except when performance is suspended
          in accordance with Section 31.0 due to the occurrence of a Force
          Majeure event, Client shall process a minimum of * Active Subscribers
          per month on Atlys(R) pursuant to the terms and conditions of this
          Agreement.

6.0  ISSUE MANAGEMENT SERVICES

     6.1. Change Management Services. Any changes to the Services to be provided
          under this Agreement shall be performed in accordance with the Work
          Request Process.

     6.2. Release Management Services. During the Term, Convergys shall
          implement Atlys(R) Core Releases and Maintenance Releases for Client
          for the fees set forth in this Agreement. Convergys will support only
          the currently available Release and the immediately preceding Release.
          Convergys shall have no obligation to support the System and shall be
          relieved of all SLAs in connection with the System if Client does not
          permit Convergys to install Core Releases and Maintenance Releases in
          accordance with this Section 6.0. Convergys will give Client three
          months advance notice of the general availability date of and the
          functionality contained in a new Core Release.

     6.3. Problem Resolution Management Services. Convergys will manage all
          problems in the delivery of the Services in accordance with the
          Problem Resolution Management Process.

7.0  RECORD KEEPING AND AUDIT RIGHTS

     7.1. Record Keeping. Convergys shall keep or cause to be kept complete and
          accurate accounting records, in accordance with GAAP, to substantiate
          Convergys' charges hereunder. Convergys shall retain such records for
          a period of two (2) years from the date of rendering Services for
          which such charges were billed.

     7.2. Audit Rights. Client, at its cost, has the right to conduct periodic
          audits of the charges for the Services performed by Convergys for
          Client, and any Convergys third-party pass-through charges under this
          Agreement with thirty (30) days prior written notice to Convergys;
          provided, however, that such audits shall not occur more frequently
          than once per year during the term of the Agreement. Any changes
          suggested by the auditor as a result of the audit will be subject to
          the mutual agreement of the parties.

8.0  SERVICE LEVEL AGREEMENTS

     8.1. Service Level Agreement. Convergys shall provide all Services under
          this Agreement in accordance with the applicable Service Level
          Agreement attached to the Work Order. Should Convergys exceed the
          SLAs, Client shall make incentive payments to Convergys in accordance
          with the Service Level Agreement.

     8.2. Failure to Perform. If Convergys fails to meet an SLA, Convergys shall
          (i) promptly investigate the underlying cause of the problem; (ii)
          prepare and deliver to Client a report identifying the same; (iii)
          promptly correct the problem and begin meeting the SLAs as soon as
          practicable; (iv) advise Client of the status of remedial efforts
          being undertaken with respect to the underlying cause of the problem
          and communicate with Client as necessary with respect to the status of
          such SLAs until such time as the SLAs are met; and (v) provide credits
          in accordance with the Service Level Agreement.

     8.3. Measurement and Monitoring Tools. Convergys shall implement necessary
          measurement and monitoring tools and procedures required to measure
          and report Convergys' performance of Services against applicable SLAs.
          Such measurement and monitoring shall permit reporting at a level of
          detail sufficient to verify compliance with the SLAs and the
          applicable provisions set forth in this Agreement. Convergys shall
          provide Client, on a monthly basis, with a written report stating its
          compliance and/or non-compliance with the SLAs and how such compliance
          or non-compliance was determined.

9.0  RELATIONSHIP MANAGEMENT

     9.1. Program Management Team. Convergys will establish a Program Management
          Team that will consist of the Convergys Program Manager and other key
          Convergys personnel responsible for the day to day operation and
          delivery of the Services. The Convergys Program Manager will be
          responsible for managing the delivery of the Services. The Convergys
          Program Manager will be authorized to act as Convergys' primary
          contact for Client under this Agreement. The Program Management Team
          will meet with Client's designated personnel at least twice a month to
          review performance of the Services, and will be in contact with Client
          on a regular basis until such time as the billing services are fully
          transitioned to Atlys(R). Program Management Team meetings will take
          place at an agreed upon location or via teleconference, at the mutual
          agreement of the parties. Each party will bear the cost of its
          participation in Program Management Team meetings.

     9.2. Management Reports. As a part of the Services and at no additional
          charge to Client, Convergys shall issue the Management Reports listed
          in this Section 9.2 to Client. From time to time during the Term,
          Client may request additional reports, which will be charged on a Time
          and Materials basis at the Professional Services Rate. The included
          Management Reports are:

          Weekly:
          Open Items Reports/Review Call
          Client Status Report (through completion of Conversion Services)

          Monthly:
          Production/Operations Report Summary
          Client Metrics Report
          Professional & Consulting Invoice
          Data Processing Invoice

          Quarterly:
          Quarterly Summary Letter/ Quarterly Management Meeting

10.0 CONFIDENTIALITY AND NONDISCLOSURE; PUBLICITY

      10.1. Confidentiality And Non-Disclosure. Convergys and Client have
            entered into that certain Mutual Nondisclosure Agreement dated June
            18, 2002 and attached hereto as Exhibit B and incorporated herein by
            this reference (the "Nondisclosure Agreement"). Each party hereby
            ratifies and confirms its continuing duties, and rights and remedies
            under the Nondisclosure Agreement. In addition, the Nondisclosure
            Agreement shall be expanded to include the right of each party to
            use Confidential Information to perform its obligations under this
            Agreement. Without limiting the generality of the foregoing, the
            parties hereby expressly acknowledge and agree that all information
            that would be considered Confidential Information under the
            Nondisclosure Agreement, shall retain such designation. Client's
            "Confidential Information" shall include, but shall not be limited
            to: (i) Client's "Customer Data" provided to Convergys or any of its
            agents either prior to or during the term of this Agreement, and
            (ii) any and all other information relating to Client's business or
            operations. The term "Customer Data" shall include all information
            specific to Client's customers, including but not limited to:
            customer names, addresses, phone numbers, IP addresses, rates, rate
            plans, usage data and statistics, equipment records, and customer
            notices. Except as otherwise expressly set forth in writing,
            Convergys' "Confidential Information" shall include: (1) Convergys'
            system, software, source code, object code, procedures, drawings,
            designs, specifications, technology and/or user documentation
            therefore provided to Client or any of its agents during the term of
            this Agreement; (2) technical and business development methods and
            processes used by Convergys, and program listings, manuals and
            documentation related to Convergys' software and applications; (3)
            Convergys business information, including but not limited to
            nonpublic financial information, pricing, customer information or
            lists and (4) all other proprietary information relating to
            Convergys' Services which are provided to Client in tangible form
            during the term of this Agreement. Convergys' Confidential
            Information and any copies made by Client are the property of
            Convergys.

                  10.1.1. For further clarification, Client is not an Affiliate
                          of AT&T Wireless, Inc. and neither party may disclose
                          Confidential Information of the other party to AT&T
                          Wireless, Inc. without the non-disclosing party's
                          written consent.

            10.2. Publicity. Unless in the sole opinion of Client it will
                  materially hamper negotiations with Client's present bill
                  processing vendor, Convergys and Client agree to issue two
                  mutually acceptable joint press releases announcing the
                  existence and nature of this Agreement, the first upon
                  execution of this Agreement and the second upon Commercial
                  Launch of Atlys(R)for Client. Client agrees that Convergys may
                  include Client's name along with its properly formatted logo
                  in lists of Convergys customers (a) in marketing materials,
                  including the Convergys web sites, (b) in reporting for
                  purposes of the Securities and Exchange Commission including
                  the Convergys annual report, and (c) as otherwise required by
                  law. As soon as any impairment to Client's negotiations with
                  its present bill processing vendor is removed, Convergys and
                  Client shall proceed with carrying out this Section 10.2

11.0  EQUIPMENT

      11.1. Damage to or Loss of Equipment. Convergys will be liable for all
            loss or damage, other than ordinary wear and tear, to Client's
            equipment in Convergys' possession or control. In the event of any
            such loss or damage, Convergys will pay Client the amortized value
            of such equipment based on a three year depreciation. Client will be
            liable for all loss or damage, other than ordinary wear and tear, to
            Convergys' equipment in Client's possession or control. In the event
            of any such loss or damage, Client will pay Convergys the amortized
            value of such equipment based on a three year depreciation.

      11.2. Return of Equipment. Upon termination of this Agreement for any
            reason, Convergys will return all Client equipment to Client and
            Client will return all Convergys equipment to Convergys, within ten
            (10) days after the effective date of termination.

12.0  DATA BACKUP

      12.1. Client is responsible for initiating and maintaining, externally to
            Convergys' system, backup copies of data that is provided by Client
            as input to Services provided by Convergys.

13.0  SECURITY REPRESENTATION

      13.1. No Unauthorized Access. While the Services are being provided by
            Convergys to Client in Convergys' Data Center, Convergys shall use
            commercially reasonable efforts to secure the customer care and
            billing services environment, system operations and data against
            unauthorized access or disclosure and to protect against breaches of
            said security. Convergys shall use reliable, tested technology to
            perform its obligations under this Section 13.1. Protection shall
            consist of a combination of controls for the following:

            o     Integrity - protection against alteration of the System
                  software, applications, data, hardware configuration,
                  connectivity, and the state-of-privilege settings during
                  storage or transmission;

            o     Availability - protection against access of the System and
                  data by unauthorized persons; and,

            o     Confidentiality - protection against disclosure of information
                  to unauthorized persons.

      13.2. Security Audit. After providing 30 days prior notice to Convergys,
            Client shall have the right to conduct a security audit during
            normal business hours to ensure compliance with the foregoing
            security provisions no more frequently than once per year.
            Notwithstanding the foregoing, if Client has a good faith belief
            that there may have been a material breach of the agreed security
            protections, Client shall meet with Convergys to discuss the
            perceived breach and attempt to resolve the matter as soon as
            reasonably possible. If the matter cannot be resolved within a
            thirty (30) day period, the parties may initiate an audit to be
            conducted and completed within thirty (30) days thereafter. A report
            of the audit findings shall be issued within such thirty (30) day
            period, or as soon thereafter as is practicable. Such audit shall be
            conducted by Convergys' auditors, or the successors to their role in
            the event of a corporate reorganization, at Convergys' cost. Client
            has the option, at Client's own cost, to engage an agreed upon
            independent auditor, to work in conjunction with Convergys'
            auditors. If the independent Third Party auditor recommends
            additional security measures after completion of the audit,
            Convergys and Client shall jointly determine how best to respond to
            such recommendation.

14.0  DISASTER RECOVERY

      Convergys shall provide Business Continuity Services in accordance with
      Work Order 2002-02 as follows: Convergys shall (i) assume responsibility
      for the Disaster Recovery Plan in accordance with Attachment E to Work
      Order 2002-02, (ii) implement and manage the Disaster Recovery Plan, (iii)
      maintain a cold site, (iv) once every calendar year during the Term,
      update and test the operability of the Disaster Recovery Plan in effect at
      that time, (v) upon Client's request, certify to Client that the Disaster
      Recovery Plan is materially operational, and (vi) upon discovery by
      Convergys, promptly provide Client with written notice of a disaster and
      implement the Disaster Recovery Plan upon the occurrence of a disaster. *


15.0  OWNERSHIP OF INTELLECTUAL PROPERTY

      15.1. Pre-Existing Intellectual Property. Each Party shall retain
            ownership of all right, title and interest in and to any
            intellectual property it owned or had an interest in prior to the
            Effective Date of this Agreement, including, but not limited to all
            copyright, patent, trademark, service mark and trade secret rights,
            technical documents, technical data, documentation, and engineering
            materials (collectively, the "Pre-existing Intellectual Property").
            Unless expressly stated herein, nothing in this Agreement shall be
            deemed to imply a transfer of ownership of the Pre-existing
            Intellectual Property.

      15.2. Proprietary Materials. As used in this Agreement, "Proprietary
            Materials" means all products, devices, computer programs,
            techniques, know-how, algorithms, procedures, discoveries or
            inventions, whether patentable or copyrightable and whether reduced
            to practice, and all materials, texts, drawings, specifications,
            source code, object code, data and other recorded information, in
            preliminary or final form and on any media whatsoever, that are
            related to the software or System provided by Convergys or that are
            used to provide the Services, including any improvements, updates
            and modifications, developed, discovered, or made to the software or
            System during the term of or in anticipation of this Agreement,
            whether solely or jointly with others, and whether or not while
            Convergys is engaged in performing the Services.

      15.3. Ownership. Unless otherwise provided in a Work Order or other
            written agreement, as between Convergys and Client, Convergys will
            be the exclusive owner of all Proprietary Materials. Client hereby
            assigns and transfers to Convergys all right, title and interest
            that Client may now or hereafter have in the Proprietary Materials,
            subject to the limitations set forth in any Work Order or other
            written agreement between the parties.

      15.4. Further Acts. Client will take such action (including, but not
            limited to, the execution, acknowledgment, delivery and assistance
            in preparation of documents or the giving of testimony) as may be
            reasonably requested by Convergys to evidence, transfer, vest or
            confirm Convergys' right, title and interest in the Proprietary
            Materials.

      15.5. Limitation. Notwithstanding any other provision of this Agreement to
            the contrary, this Section 15.0 will not obligate Client to assign
            or offer to assign to Convergys any of Client's rights in Client
            owned materials, and "Proprietary Materials" shall not be construed
            to include any materials prepared by Client even if those materials
            relate to the software or System. By way of example and not of
            limitation this would include such materials as training materials
            and guides for usage.

16.0  CLIENT RESPONSIBILITIES

      16.1. *

      16.2. Access to Equipment. In the event Convergys installs and maintains
            the equipment for Client, Client agrees to promptly provide and
            permit reasonable access to such equipment by Convergys personnel
            and to provide the necessary environment for such equipment;
            provided that Convergys is responsible for identifying such
            requirements for such environment.

      16.3. Business Requirements. Client shall be responsible for advising
            Convergys of the requirements and nature of Client's business as
            such may affect the provision of the Services, including but not
            limited to projected material increases in the volumes, changes in
            the law, and the like.

      16.4. Provision of Information. Client shall provide timely, complete and
            accurate information, data, requirements or specifications that it
            is obligated to provide pursuant to a Work Order and shall not
            unreasonably interfere with Convergys' performance of its
            obligations.

17.0  WARRANTIES

      17.1. Performance of Services. Convergys warrants that the Services
            provided hereunder will be provided in a professional and
            workmanlike manner and will be free of material errors, defects,
            malfunctions or omissions caused by Convergys, its equipment,
            software or employees.

      17.2. Title. Convergys represents and warrants that Convergys owns all
            right, title and interest in or to, or possesses valid and binding
            licenses for use of, all software provided by Convergys without
            infringement of the proprietary rights of any other person arising
            from any U.S. patent, copyrights, or trademarks. Convergys does not
            warrant against infringement arising from the combination,
            operation, or use of its proprietary software with Third Party
            software or hardware not provided by Convergys if such infringement
            could have been avoided by the combination, operation, or use of the
            Convergys software with other software or systems. Client represents
            and warrants that Client owns the necessary right, title and
            interest in or to, or possesses valid and binding licenses for
            Client-provided software without infringement of the proprietary
            rights of any other person arising from any U.S. patent, copyright
            or trademark.

      17.3. No Default/Conflict. Convergys and Client each warrants that its
            signing, delivery and performance of this Agreement shall not
            constitute a violation of any judgment, order or decree or a
            material default under any material contract by which it or any of
            its material assets are bound. Convergys and Client each further
            warrants that the performance of this Agreement will not conflict
            with or be hindered by any obligation of Convergys or Client
            respectively under any other agreement, whether in effect as of the
            Effective Date or entered into thereafter.

      17.4. Authorization. Convergys and Client each warrants that (i) it has
            the requisite corporate power and authority to enter into this
            Agreement and to carry out the transactions contemplated by this
            Agreement; and (ii) the signing, delivery and performance of this
            Agreement and the consummation of the transactions contemplated by
            this Agreement have been duly authorized through requisite corporate
            action.

      17.5. Notice. If Client believes that any Services provided hereunder are
            not performed in accordance with the above warranty, Client shall
            give Convergys written notice detailing the deficiencies. Convergys
            shall thereafter have an opportunity, over a reasonable period of
            time, but not less than thirty (30) days from receipt of notice of
            delinquency, to satisfy such warranty claim.

      17.6. Remedy. Convergys agrees to re-run or correct, at its sole expense,
            any nonconforming Services that are due solely to errors,
            malfunctions or omissions on the part of Convergys, its equipment,
            software or employees or otherwise results from Convergys' failure
            to perform its obligations under this Agreement. Convergys shall not
            be responsible for any nonconforming Services caused by changes,
            misuse or negligence of Client or its authorized agents. Failure by
            Client to give notice of nonconforming Services within ninety (90)
            days after performance of such Services shall constitute final
            acceptance thereof.

      17.7. EXCEPT FOR THE WARRANTIES STATED IN THIS AGREEMENT OR IN APPLICABLE
            WORK ORDERS, CONVERGYS DISCLAIMS ALL WARRANTIES WITH REGARD TO THE
            SERVICES OR PRODUCTS FURNISHED UNDER THIS AGREEMENT, INCLUDING
            WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

18.0  TERMINATION FOR DEFAULT

      18.1. Intermediate Terminations. Notwithstanding anything in this
            Agreement to the contrary, the non breaching party will have the
            right to terminate this Agreement immediately upon notice to the
            breaching party in the event of a material breach of Section 10.0
            (Confidentiality).

      18.2. Termination by Convergys. Convergys may terminate this Agreement for
            non-payment if any such non-payment is not cured within thirty (30)
            days after written notice to correct such default is sent to Client.

      18.3. Termination For Default. Either party may terminate this Agreement
            if any of the following events of default occur: (i) if, for reasons
            other than force majeure, or those described in Section 18.1 or 18.2
            either party materially fails to perform or comply with this
            Agreement and such failure is not cured within thirty (30) days (or
            such longer period as may be reasonably necessary, not to exceed
            sixty (60) days; provided such breaching party immediately commences
            such cure and diligently pursues completion) after written notice to
            correct such default is received from the other party; (ii) if
            either party becomes insolvent or admits in writing its inability to
            pay its debts as they mature, or makes an assignment for the benefit
            of creditors; (iii) if a petition under any foreign, state, or U.S.
            bankruptcy act, receivership statute, or the like, as they now
            exist, or as they may be amended, 1is filed by either party; or (iv)
            if such a petition is filed by any Third Party, or an application
            for a receiver of either party is made by anyone and such petition
            or application is not resolved favorably within sixty (60) days.

19.0  OPTION TO TERMINATE FOR CHANGE IN CONTROL

      19.1. Payment of Termination Fee. Beginning *, Client may terminate this
            Agreement by giving * prior written notice only: (a) in the event of
            a Change in Control of Client as defined in Section 19.2; and (b)
            payment by Client of the appropriate Termination Fee as set forth in
            Section 19.3.

      19.2. Definition of Change in Control. For purposes of this Section 19.0,
            "Control" shall mean, with respect to any legal entity, the legal,
            beneficial or equitable ownership, direct or indirect, of more than
            50% of the aggregate of all voting or equity ownership interests in
            such entity; "Change in Control" shall mean any change in the legal,
            beneficial or equitable ownership, direct or indirect, such that
            Control of such entity is no longer the same as on the Effective
            Date, or a sale of substantially all of the assets of Client.

      19.3. Termination Fees. In the event that this Agreement is terminated
            pursuant to Section 19.1, Client shall pay a Termination Fee
            according to the following schedule:

-------------------------- ------------------------------------------
      Termination Fee             Effective Date of Termination
-------------------------- ------------------------------------------
                                                *
             *
-------------------------- ------------------------------------------
                                                *
             *
-------------------------- ------------------------------------------
                                                *
             *
-------------------------- ------------------------------------------
                                                *
             *
-------------------------- ------------------------------------------

            Client shall pay Convergys * of the Termination Fee upon notice of
            termination and place the remaining balance in an escrow account to
            be released to Convergys once Client's Subscriber's have been
            migrated off of the System.

20.0  LIMITATION OF LIABILITY

      CONVERGYS' TOTAL LIABILITY FOR LOSS, DAMAGE OR EXPENSE IN CONNECTION WITH
      OR ARISING FROM THIS AGREEMENT, INCLUDING ANY WORK ORDERS HEREUNDER SHALL
      BE LIMITED TO DIRECT DAMAGES PROVEN NOT TO EXCEED * PER ANY SINGLE EVENT
      OR SERIES OF RELATED EVENTS WITH A MAXIMUM LIMITATION OF * IN THE
      AGGREGATE FOR THE COMPANION AGREEMENTS DURING THE TERM OF THE AGREEMENT.
      NEITHER PARTY SHALL BE LIABLE TO THE OTHER PARTY FOR ANY INCIDENTAL,
      CONSEQUENTIAL, OR INDIRECT DAMAGES OF ANY KIND, NOR FOR LOSS OF PROFITS,
      LOSS OF REVENUE, BUSINESS OR GOODWILL, UNDER OR ARISING OUT OF THIS
      AGREEMENT, HOWEVER CAUSED.

21.0  IMPROVEMENTS

      In order to continuously improve the quality of Services to Client,
      Convergys reserves the right to make reasonable changes in rules of
      operation, Client's identifications, procedures, type of terminal
      equipment, type of system equipment, system programming languages and
      location of the Data Center or remote access stations serving Client, at
      no expense to Client. Convergys agrees to provide reasonable advance
      notice to Client of any such changes to allow Client to adequately prepare
      its operations for such change.

22.0  COMPANY AND WORK RULES, RELATIONSHIP OF THE PARTIES

      22.1. Convergys and Work Order. Convergys and Client employees and agents,
            while on the premises of the other, shall comply with all company
            rules and regulations including, where required by government
            regulations, submission of satisfactory clearance from the U.S.
            Department of Defense and other federal authorities concerned. Each
            party shall be responsible for supervision and direction of the work
            by its employees, agents and subcontractors.

      22.2. Relationship of the Parties. This Agreement shall not be construed
            to deem either party as a representative, agent, employee, partner,
            or joint venture of the other. Convergys shall be an independent
            contractor for the performance under this Agreement. Neither party
            shall have the authority to enter into any agreement, nor to assume
            any liability, on behalf of the other party, nor to bind or commit
            the other party in any manner, except as provided hereunder. Each
            party's employees and subcontractors who perform under this
            Agreement shall remain employees and subcontractors of that party
            and each party shall have sole responsibility for such employees and
            subcontractors, including responsibility for payment of compensation
            to such personnel and for injury to them in the course of their
            employment. Each party shall be responsible for all aspects of labor
            relations with such employees and subcontractors, including their
            hiring, supervision, evaluation, discipline, firing, wages,
            benefits, overtime and job and shift assignments and all other terms
            and conditions of their employment, and the other party shall have
            not responsibility therefore.

23.0  RIGHT OF ACCESS; COOPERATION

      23.1. Convergys and Client shall permit reasonable access to the other's
            facilities in connection with work under the Agreement. No charge
            shall be made for such visits. Prior notification will be given when
            access is required. Neither Convergys nor Client shall require
            waivers or releases of any personal rights from representatives of
            the other in connection with visits to the other's premises, and no
            such releases or waivers shall be pleaded by Convergys, Client or
            third persons in any action or proceeding.

      23.2. Convergys will cooperate in a timely manner with all Client requests
            for information and assistance with respect to the Service and
            information/data maintained on the Convergys systems. In particular,
            Convergys will provide timely cooperation with respect to Client
            customer requests, Client internal evaluations of information, and
            requests relating to administrative and legal proceedings.
            Investigations conducted and responses provided pursuant to this
            Section 23.0 shall be charged to Client on a Time and Materials
            basis at the Professional Services Rate.

24.0  COMPLIANCE WITH LAWS

      Convergys will comply with all federal, state and local laws, ordinances,
      rules, regulations and orders with respect to its performance of the
      Services. Client will comply with all federal, state and local laws,
      ordinances, rules, regulations and orders with respect to its obligations
      under this Agreement. Client shall advise Convergys of any laws or
      regulations or changes in laws or regulations affecting Client's business
      as they may relate to the Services. Changes in the Services occasioned by
      changes in laws or regulations shall be subject to the Work Request
      Process and shall be charged on a Time and Materials basis at the
      Professional Services Rate.

25.0  INDEMNIFICATION AND DEFENSE

      25.1. Convergys will indemnify, defend and hold Client (and Client's
            agents and employees) harmless from all claims, damages,
            liabilities, losses, costs and expenses (including without
            limitation reasonable attorneys' fees) arising out of or resulting
            from any Third Party claim, action or other proceeding (including
            any proceeding by any of Convergys' employees, agents or
            contractors) that is based upon or relates to (a) the negligence or
            willful misconduct of Convergys or any party under direction or
            control of Convergys, (b) the damage, loss or destruction of any
            real property or tangible personal property of Client or injury or
            death to any persons resulting from the actions or inactions of any
            employee, agent or subcontractor of Convergys insofar as such damage
            arises out of or in the course of fulfilling its obligations under
            this Agreement and to the extent such damage is due to any
            negligence, breach of statutory duty, omission or default of
            Convergys, its employees, agents or subcontractors, or (c) the
            infringement or misappropriation of any U.S. patent, copyright or
            trademark by the software provided by Convergys pursuant to the
            Agreement, provided, however, Convergys will have no liability for
            claims of infringement arising from the combination, operation or
            use of the software or any portion of its software with Third Party
            software or hardware not provided by Convergys if such infringement
            could have been avoided by the combination, operation, or use of the
            software with other software or hardware. Convergys obligations
            under this Section 25.1 are contingent upon Client's prompt
            notification of any claim or potential claim for which it may seek
            indemnification and opportunity. Client shall provide Convergys with
            its opportunity to defend such claim and the information and
            assistance necessary to provide such defense.

      25.2. Client will indemnify, defend and hold Convergys (and Convergys'
            agents and employees) harmless from all claims, damages,
            liabilities, losses, costs and expenses (including without
            limitation reasonable attorneys' fees) arising out of or resulting
            from any Third Party claim, action or other proceeding (including
            any proceeding by any of Client's employees, agents or contractors)
            that is based upon or relates to (a) the negligence or willful
            misconduct of Client or any party under direction or control of
            Client, (b) the damage, loss or destruction of any real property or
            tangible personal property of Convergys or injury or death to any
            persons resulting from the actions or inactions of any employee,
            agent or subcontractor of Client insofar as such damage arises out
            of or in the course of fulfilling its obligations under this
            Agreement and to the extent such damage is due to any negligence,
            breach of statutory duty, omission or default of Client, its
            employees, agents or subcontractors, or (c) the infringement or
            misappropriation of any U.S. patent, copyright or trademark by all
            or any portion of intellectual property provided by Client pursuant
            to the Agreement. Client's obligations under this Section 25.2 are
            contingent upon Convergys' prompt notification of any claim or
            potential claim for which it may seek indemnification. Convergys
            shall provide Client with the opportunity to defend against such
            claim and the information and assistance necessary to provide such
            defense. Convergys may, at its option and sole cost, participate in
            the defense in any such proceeding.

      25.3. Infringement remedies. If any Convergys software used to provide
            Services becomes, or in Convergys' reasonable opinion is likely to
            become, the subject of an infringement or misappropriation claim or
            proceeding, Convergys shall, in addition to indemnifying Client as
            provided in Section 25.1, if commercially reasonable, promptly take
            the following actions at no charge to Client: (i) secure the right
            to continue using the software; or (ii) replace or modify the
            software to make it non-infringing, provided that any such
            replacement or modification will not materially degrade
            functionality, performance or quality of the affected software.

26.0  *

27.0  INSURANCE

      27.1. Insurance Policies. Convergys, at its own costs, shall procure,
            maintain, and keep in force and effect throughout the Term insurance
            issued by companies in good standing with coverage as follows:

            o     Worker's compensation insurance, including occupational
                  illness or disease coverage, and/or all other social insurance
                  in accordance with the statutory requirements of all states,
                  provinces, or countries where the Services are performed;

            o     Comprehensive or commercial general liability insurance with a
                  combined single limit of not less than * each occurrence for
                  bodily injury and property damage;

            o     Employee's liability insurance with of at least * each
                  occurrence.

28.0  DISPUTE RESOLUTION

      28.1. Informal Dispute Resolution Procedure. The parties will attempt to
            settle any claim or controversy among them through consultation and
            negotiation in good faith and with a spirit of mutual cooperation.
            After attempts to resolve a dispute by the parties have failed, any
            party may, upon notice to the others, request that such controversy
            or claim be referred to the appropriate management personnel of each
            party for negotiation and resolution. If such a request is made, the
            applicable and appropriate management-level personnel of the parties
            shall meet in person or by telephone within seven (7) days after
            such request and shall review and attempt to negotiate a mutually
            acceptable resolution of the controversy or claim in dispute. Any
            resolution reached under this Section 28.0 will be reduced to
            writing and signed by the parties. Any dispute that cannot be
            resolved between the parties through the informal dispute shall then
            be submitted for final and binding arbitration as set forth in
            Section 28.2. Notwithstanding anything to the contrary herein,
            disputes involving either party's intellectual property rights and
            the parties shall not be required to comply with the provisions of
            this Section 28.0 with regards thereto.

      28.2. Arbitration. Arbitration shall be conducted before one arbitrator in
            accordance with the rules of the American Arbitration Association.
            The arbitrator must be licensed to practice law in the United
            States. The arbitration hearing shall be held in Cincinnati, Ohio
            within thirty (30) calendar days of the appointment of the
            arbitrator. The arbitration rules and procedures of the American
            Arbitration Association shall govern the hearing procedure, provided
            that the Federal Rules of Evidence shall govern the admissibility of
            evidence at such hearing and provided that the arbitrator shall have
            no power to make an award in contradiction of the terms of the
            Agreement, including, but not limited to, the limitations of
            liability set forth herein. The laws of the state of Ohio, exclusive
            of its conflicts of law rules, shall govern the construction of this
            Agreement. The arbitrators shall have no power to alter or amend any
            of the provisions of this Agreement. The arbitrator shall have the
            power to award the prevailing party at the hearing all reasonable
            expenses of enforcing its rights under the Agreement, including,
            without limitation, reasonable attorneys' fees, arbitrator's fees,
            and expenses. The arbitrator shall issue an award within seven (7)
            calendar days following the end of the hearing. Any award or
            decision of the arbitrator shall be final and binding on all
            parties, and judgment on such award may be entered by either party
            in a court of competent jurisdiction.

      28.3. Equitable Relief. Nothing in this Section 28.0 is intended to
            restrict or limit either party's ability to apply to a court of
            competent jurisdiction for specific performance or injunctive relief
            as such court may deem just and proper in order to enforce this
            Agreement or prevent any violation hereof at an interim or
            interlocutory stage.

29.0  OBLIGATIONS UPON TERMINATION

      29.1. Return of Client's Confidential Information. Upon the termination or
            expiration of this Agreement, Convergys shall promptly destroy or
            deliver to Client all copies and embodiments in whatever form of
            Client's Confidential Information, or destroy or erase any
            embodiments of Client Confidential Information existing in
            electronic media, including, but not limited to, written records,
            notes, photographs, manuals, notebooks, documentation, and all other
            materials containing any of Client's Confidential Information, no
            matter where such material is located and no matter what form the
            material may be in and, if requested by the Client, shall provide
            Client with written confirmation that all such materials have been
            returned or destroyed.

      29.2. Return of Convergys' Confidential Information. Upon the termination
            or expiration of this Agreement, Client shall promptly destroy or
            deliver to Convergys all copies and embodiments, in whatever form,
            of Convergys' Confidential Information or destroy or erase any
            embodiments of Convergys' Confidential Information existing in
            electronic media, including but not limited to, written records,
            notes, photographs, manuals, notebooks, documentation, and all other
            materials containing any of Convergys' Confidential Information, no
            matter where such material is located and no matter what form the
            material may be in and, if requested by Convergys, shall provide
            Convergys with written confirmation that all such materials have
            been returned or have been destroyed.

      29.3. Termination Assistance. In the event of any termination or
            expiration of this Agreement, Convergys shall continue to provide
            the Services for a period of up to six months following the
            effective date of any such termination or expiration (the "Post
            Termination Transition Period") at the rates set forth in this
            Agreement and on terms to be agreed upon by the parties as of the
            effective date of the termination or expiration. Client may elect,
            in its sole discretion, to terminate the Post Termination Transition
            Period at any time upon sixty (60) days' prior written notice to
            Convergys, which notice shall include the date on which the Services
            shall be discontinued. In the event Convergys terminates this
            Agreement pursuant to Section 18.2 for Client's non-payment, Client
            agrees to pay to Convergys: (a) all outstanding amounts then due and
            owing by Client; and (b) monthly, in advance, for the services
            provided by Convergys during the Post Termination Transition Period.

30.0  ASSIGNMENT

      30.1. Consent to Assign. Neither party shall assign any right or
            obligation under this Agreement without the prior written consent of
            the other party. Any assignment without such written consent shall
            be void. Notwithstanding the preceding sentence, either party may
            assign this Agreement, in whole or in part, to an Affiliate upon
            notice, but without the consent of the other party, provided the
            assigning party is not released from this Agreement without the
            written consent of the other party. Further, either party may assign
            its rights and obligations under this Agreement to a company into
            which it may merge or consolidate or which acquires substantially
            all of its assets or stock, upon notice, but without the consent of
            the other party. Any authorized assignment under this Section 30.0
            shall be binding upon and inure to the benefit of the parties, their
            respective successors (whether by stock or asset transfer or any
            change of control by any other means), personal representatives and
            permitted assigns.

      30.2. Client Disposition. Unless otherwise expressly agreed to in writing
            by Convergys, Client agrees that, in connection with any sale,
            transfer, assignment or other disposition of (I) all or
            substantially all of the assets of the Client, or (II) a majority of
            the stock of Client, whether in connection with a divestiture,
            spin-off, reorganization, business combination, recapitalization or
            similar corporate restructuring, or otherwise (a "Disposition"),
            unless this Agreement is terminated pursuant to Section 19.0, it
            will ensure that (i) the purchaser of the assets of Client or
            successor entity to Client reaffirms or assumes in writing the
            rights and obligations under this Agreement and (ii) the purchaser
            of the assets of Client or successor entity to Client has
            creditworthiness comparable to that of Client as of the Effective
            Date.

      30.3. Sale or Purchase of Market. Convergys shall not be required to
            accept performance from, or render performance to, any party other
            than Client. Provided, subject to the Minimum Processing Commitment
            in Section 5.0, nothing in this Agreement shall be construed as
            affecting the ability of Client to sell or exchange a Market.
            Similarly, nothing in this Agreement shall be construed as affecting
            the ability of Client to purchase a Market and add such Market to
            this Agreement, and the Exclusivity provision of Section 4.1 shall
            be subject to a reasonable transition period.

31.0  FORCE MAJEURE

      Neither Convergys nor Client shall be held responsible for any delay or
      failure in performance hereunder caused by fires, strikes, embargoes,
      terrorist activities, government requirements, civil or military
      authorities, power failures, acts of God or by the public enemy, inability
      to secure raw materials or transportation facilities, labor disputes, acts
      or omissions of carriers, or other causes beyond the control of Convergys
      or Client. If such contingency occurs, the party injured by the other's
      inability to perform may elect to suspend such Services for the duration
      of the delaying cause, buy or sell elsewhere the items or Services to be
      bought or sold hereunder and on an interim basis and resume performance
      once the delaying cause ceases. The occurrence of a Force Majeure event
      does not excuse, limit or otherwise affect Client's obligation to pay for
      Services rendered.

32.0  LICENSES

      No licenses, express or implied, are granted to Client by Convergys
      hereunder, except that Convergys hereby grants Client a non-exclusive,
      world-wide license during the Term of this Agreement to install the
      Atlys(R) GUI Client Workstation Application to be provided under this
      Agreement on Client's workstations and to use such application to access
      the Services provided hereunder. This license shall terminate upon the
      expiration or termination of this Agreement for any reason.

33.0  APPLICABLE LAW AND BINDING EFFECT

      This Agreement shall be governed by and construed in accordance with the
      laws of the State of Ohio, excluding its conflicts of law rules, and shall
      inure to the benefit of and be binding upon the parties hereto and their
      heirs, personal representatives, successors and permitted assigns.

34.0  NOTICES

      All notices given hereunder will be given in writing, will refer to this
      Agreement and will be personally delivered, sent by facsimile transmission
      or by registered or certified mail (return receipt requested) to the
      address set forth below. Any party may from time to time change such
      address by giving the other party notice of such change in accordance with
      this Section 34.0. All notices shall be deemed given as of the day they
      are received.

      If to Client:          Dobson Cellular Systems, Inc.
                             14201 Wireless Way
                             Oklahoma City, Oklahoma 73134

                             Attn:  R. Thomas Morgan
                             Fax:   405-529-8791

      With a copy to:        Dobson Cellular Systems, Inc.
                             14201 Wireless Way
                             Oklahoma City, Oklahoma 73134

                             Attn:  Ron Ripley
                             Senior Corporate Counsel
                             Fax:   405-529-8765


      If to Convergys:       Convergys Information Management Group
                             201 East Fourth Street
                             Cincinnati Ohio 45202

                             Attn: President of Communications Solutions Group
                             Fax: 513-784-5062

      With a copy to:        Convergys Corporation
                             Legal Department
                             201 East Fourth Street
                             Cincinnati, Ohio 45202

                             Attn: General Counsel
                             Fax:  513-723-7734

35.0  SEVERABILITY

      If any provision of this Agreement is held invalid, illegal or
      unenforceable in any jurisdiction, for any reason, then, to the full
      extent permitted by law (a) all other provisions hereof will remain in
      full force and effect in such jurisdiction and will be liberally construed
      in order to carry out the intent of the parties hereto as nearly as may be
      possible, (b) such invalidity, illegality or unenforceability will not
      affect the validity, legality or enforceability of any other provision
      hereof, and (c) any court or arbitrator having jurisdiction thereover will
      have the power to reform such provision to the extent necessary for such
      provision to be enforceable under applicable law.

36.0  WAIVER; AMENDMENT

      No delay or failure by any party hereto in exercising or enforcing any of
      its rights or remedies hereunder, and no course of dealing or performance
      with respect thereto, will constitute a waiver thereof. The express waiver
      by a party hereto of any right or remedy in a particular instance will not
      constitute a waiver thereof in any other instance. Except as expressly
      provided in this Agreement, no amendment, waiver or discharge of any
      provision of this Agreement will be effective unless made in writing that
      specifically identifies this Agreement and the provision intended to be
      amended, waived or discharged and signed by both parties. Each such
      amendment, waiver or discharge will be effective only in the specific
      instance and for the specific purpose for which given.

37.0  SURVIVAL OF RIGHTS AND OBLIGATIONS

      To the extent applicable, Sections 3.0 [Payment Terms], 10.0
      [Confidentiality], 11.0 [Equipment], 15.0 [Intellectual Property], 20.0
      [Limitation of Liability], 25.0 [Indemnification], 29.0 [Obligations on
      Termination], 33.0 [Applicable Law], 35.0 [Severability], 36.0 [Survival],
      and 37.0 [Hiring of Employees] (together with all other provisions of this
      Agreement that may reasonably be interpreted or construed as surviving
      termination of this Agreement) shall survive after any expiration or
      termination of this Agreement.

38.0  HIRING OF EMPLOYEES

      Convergys agrees that it will not hire or solicit for employment Client's
      employees who are involved with the work relating to this Agreement for a
      period of one year following termination of said work by the employee in
      question unless mutually agreed upon in writing. Client agrees that it
      will not hire or solicit for employment Convergys' employees who are
      involved with the work relating to this Agreement for a period of one year
      following termination of said work by the employee in question unless
      mutually agreed upon in writing.

39.0  SECTION AND PARAGRAPH HEADINGS

      Section and paragraph headings used throughout this Agreement are for
      reference and convenience and in no way define, limit or describe the
      scope or intent of this Agreement or affect its provisions.

40.0  CONFLICTING TERMS

      The parties agree that in the event of any conflicting terms or conditions
      between the MSA, or a Work Order issued hereunder, and any change order
      issued pursuant to such a Work Order ("Change Order"), the order of
      priority and controlling terms and conditions shall be as follows: the
      Change Order, the Work Order, and then the MSA.

41.0  COMPANION AGREEMENTS

       41.1.  Companion Agreements. This Agreement is one of two companion but
              separate agreements entered into at the same time and with
              substantially the same terms. * Convergys is a party to both
              Companion Agreements. The other party to each of the Companion
              Agreements are separate entities, each with its own Markets to
              which the specific Companion Agreement will apply. However, the
              Companion Agreements will be administered and performed together
              (e.g., Subscribers under both Companion Agreements shall be
              processed on a single instance of the System), and provisions
              related to volume commitments, minimums, limitations and fees
              shall be construed together as further described in Section 41.2.

       41.2.  Joint Administration. Without limiting the generality of Section
              41.1, certain sections that appear in each of the Companion
              Agreements shall be treated as follows:

              o   MSA Section 5.0, Minimum Processing Commitment - shall be
                  determined on a combined basis.

              o   MSA Section 20.0, Limitation of Liability - shall be
                  determined on a combined basis.

              o   MSA Section 19.3, Termination Fees - *

              o   Work Order 2002-01 Section 6.1, Implementations Fee - is the
                  amount applicable to both Companion Agreements combined.

              o   Work Order 2002-01 Section 7.0, Payment Terms - is the amount
                  applicable to both Companion Agreements combined.

              o   Work Order 2002-02, Attachment A Section 1.1.1, Bill
                  Production Fees for Active Subscribers - the number of Active
                  Subscribers shall be determined on a combined basis.

              o   Work Order 2002-02, Attachment A Section 1.1.3, Minimum Data
                  Processing Commitment - the number of Active Subscribers shall
                  be determined on a combined basis.

42.0  ENTIRE AGREEMENT

      This Agreement supersedes any and all prior negotiations, understandings
      and agreements with respect hereto, and, together with the Nondisclosure
      Agreement constitutes the entire agreement of the parties hereto with
      respect to the subject matter hereof.

      The parties have executed this Agreement as of the date first set forth
      above.


Dobson Cellular Systems, Inc.                  Convergys Information Management
                                               Group Inc.


By:      R. THOMAS MORGAN                      By:   ROBERT J. MARINO

Name:    R. Thomas Morgan                      Name: Robert J. Marino

Title:   Senior Vice President and Chief       Title: President
         Information Officer

Date:    December 1, 2002                      Date: December 1, 2002


---------------
*Confidential information has been omitted and filed separately with the
 Securities and Exchange Commission.

<PAGE>
                            MASTER SERVICES AGREEMENT
                                  ATTACHMENT A

                                   Definitions

For all purposes of this Agreement, except as otherwise expressly provided
herein, capitalized terms and capitalized abbreviations shall have the meanings
set forth in this Attachment A.

"Acceptance" shall mean with regard to the Atlys(R) billing system or any
enhancement thereto, the earlier occurrence of (i) material compliance with the
Acceptance Criteria; or (ii) first use of the software in a production
environment.

"Acceptance Criteria" shall mean the mutually agreed upon criteria used to
measure whether or not a new project and/or enhancement will function in
production according to requirements.

"Acceptance Test Environment" shall mean the non-production environment used to
test current or future releases of Atlys(R) software. This environment also may
be referred to as the Joint System Test Environment.

"Acceptance Test Plan" shall mean the mutually agreed upon materials, process,
procedures, schedule and resources used to measure whether the Acceptance
Criteria have been achieved.

"Account" shall mean the record within Atlys(R) where the financial relationship
between Client and a Customer is maintained. An Account may have one or more
Subscribers associated with it.

"Account Management Services" is defined in Work Order 2002-02.

"Activation Manager" is Convergys' proprietary wireless network provisioning
system.

"Active Subscriber" shall mean a Subscriber for whom Convergys creates a bill,
processes for collection purposes, and/or creates a billable transaction. Active
Subscribers have any status in the System other than "written off" or "final,"
and if in "final" status, they have a non-zero account balance.

"Affiliate" shall mean any person or entity that controls, is controlled by, or
is under common control with a party on the Effective Date. For the purposes of
this definition, control means ownership of more than 50% of the voting stock,
equity or beneficial interest of such entity.

"AFP" or "Advanced Functionality Presentation" shall mean an output file
suitable for high-volume printing.

"Agreement" shall mean this Master Services Agreement and all Exhibits,
Schedules, and Work Orders attached hereto or incorporated herein, as the same
may be amended from time to time in accordance with the terms hereof.

"API" means application program interface.

"APV" or "ASCCI Positional Variable" shall mean the Mediation Manager internal
representation of Events, standardized by data type.

"Atlys(R)" is Convergys' proprietary wireless billing and customer care software
used by Convergys to process Client data.

"Bill Finishing Services" shall mean the services provided by Convergys to
Client and defined in Work Order 2002-02 for bill printing and mail preparation.

"Bill Production Services" shall mean the process defined in Work Order 2002-02,
or mutually agreed to by the parties, for producing invoices for Subscribers.

"Business Days" shall mean Monday through Friday, excluding Holidays.

"Business Hours" shall mean from 8:00a.m. until 5:00p.m. Central Time on
Business Days.

"Business Continuity Services" is defined in Work Order 2002-02.

"Call Detail Record" or "CDR" is the record generated by a network element for a
voice call, Circuit Switch, data call, SMS, or similar type of transaction. In
addition, an event detail record can either be generated by the network or
created by Mediation Manager.

"CDMA" or "Code Division Multiple Access" is a multiplexing technique that
allows several signals to be housed on one transmission channel.

"Change in Control" and "Control" are defined in Section 19.2 of the MSA.

"Change Order" shall mean, as further defined in Attachment B to Work Order
2002-02, a written request by a party's Authorized Representative to modify the
scope, Services, Deliverables, and/or fees in a specific Work Order pursuant to
the Work Request Process.

"Circuit Switch" is a wireless network protocol widely deployed in first- and
second-generation wireless networks. The circuit switch provides a physical,
dedicated path - called a time slot - for a call when it goes through the
switching matrix. Because this path is dedicated to the call, no other callers
can use that switch path until the call is ended.

"Client" shall mean Dobson Cellular Systems, Inc.

"Client Markets" shall mean all Markets served by Client on the Effective Date.

"Client Planning Process" shall mean the process by which Client will advise
Convergys of Client's projected changes that may impact the Services provided by
Convergys to Client, as well as non-binding projections on Professional Services
spending with Convergys.

"Commercial Launch Date" shall mean the date upon which Subscriber bills are
first produced by the Atlys(R) System.

"Companion Agreement" shall mean the agreement between Convergys and American
Cellular Corporation of even date herewith as more fully described in Section
41.0. The Agreement and the Companion Agreement shall be referred to
collectively as the "Companion Agreements."

"Concurrent End Users" shall mean all End Users, who are signed on to work
stations connected to the System, regardless of activity.

"Confidential Information" is defined in Section 10.0 of the MSA.

"Conversion Services" shall mean the tasks included in the conversion of
customer data to Atlys(R) for Client as described in Work Order 2002-01.

"CORBA" or "Common Object Request Broker Architecture" is the standard that
assists in the transfer of messages between distributed objects in various
platforms and in a dispersed computing environment.

"Core Development" shall mean the development of features and functionality for
the Atlys(R) System, which is not designated as Custom Development.

"Core Release" shall mean a product release of Atlys(R) software that
incorporates new or increased non custom functionality or capabilities.

"Customer" shall mean an individual or organization to which Client provides
services. A Customer may have one or more Accounts associated with it.

"CRM" means Customer Relationship Management software.

"CRS" or "Consolidated Roamer System" is the name of a Convergys proprietary
software product that will be used by Convergys to perform certain usage
processing functions unique to roamer usage.

"CSA" or "Communication Service Area" shall mean a certain geographical area in
which a carrier provides services.

"CSR" shall mean Client's customer service representative.

"Customer Services Component" or "CACS" shall mean the Atlys(R) component used
by CSRs to interact with Customers, as detailed in Attachment A to Work Order
2002-01.

"Custom Development" shall mean the development of features and functionality
that is done at Client's request and is in conjunction with a unique Client
concept or unique Client service offering.

"Customization Services" shall mean the tasks included in the customization of
Atlys(R) interfaces for Client as described in Work Order 2002-01.

"Customer Data" is defined in Section 10.1.

"DACC" or "Directory Assistance Call Completion" is a form of wireless usage
that will be supplied to Convergys by a Client Third Party solution provider.

"DAP" or "Directory Access Protocol" is an overall model for directory services
in the open system interconnection environment.

"Data Archival Services" shall mean the services that enable customer data to be
archived, but still easily accessed, for a defined period of time.

"Data Center" shall mean the physical site which houses the applications,
networks and servers used to provide the Data Processing Services to Client.

"Data Processing Services" shall mean the data processing services provided by
Convergys to Client as described in Work Order 2002-02.

"Detailed Estimate" is defined in Attachment B to Work Order 2002-20.

"Disaster Recovery Plan" shall mean the document attached to Work Order 2002-02,
which is a part of the Business Continuity Services.

"Dispute Notice" is defined in Section 3.5 of the MSA.

"Documentation" shall mean the information supplied to Client by Convergys
relating to an Atlys(R) Release.

"Documentation Services" is defined in Work Order 2002-02.

"Effective Date" shall mean the date first written in the introduction paragraph
of this Agreement.

"End User" shall mean the individual who ultimately uses the System pursuant to
this Agreement.

"Enhancement Request" or "ER" is defined in Attachment B to Work Order 2002-02.

"Event" shall mean a derived measure of wireless usage that normalizes the
various wireless usage types (i.e., voice calls, data transfers, SMS) into a
single unit based on size and complexity from a billing perspective.

"Escalation Process" is defined in Attachment D to Work Order 2002-02.

"Force Majeure" is defined in Section 31.0 of the MSA.

"GAAP" shall mean U.S. generally accepted accounting principles, consistently
applied.

"G-CDR" or "Gateway Call Detail Record" is a record of information generated in
connection with GPRS technology.

"GPRS" or "General Packet Radio Service" is a 2.5G GSM technology that delivers
high speed packet data services to mobile terminals.

"GSM" Groupe Speciall Mobille a/k/a Global System for Mobile Communications. A
set of standards from the European Telecommunications Standards Institute
specifying the infrastructure for a digital cellular system.

"GUI" or "Graphical User Interface" is a form of screen design based upon the
use of graphics. In software, for example, it allows users to manipulate
pictured objects rather than entering pure text at a command line prompt.

"Holidays" shall mean days on which normal Business Hours are suspended and
shall include New Year's Day, Memorial Day, Independence Day, Labor Day,
Thanksgiving Day, day after Thanksgiving Day and Christmas Day.

"HTML" means hyper-text markup language.

"ICP" means intercarrier communications process.

"Implementation Services" shall mean the tasks included in the implementation of
Atlys(R) for Client as described in Work Order 2002-01.

"Implementation Fee" shall mean the fee specified in Work Order 2002-01 for the
Implementation Services, Conversion Services and Customization Services
described in that Work Order.

"IMSI" or "International Mobile Subscriber Identity" is a unique non-dialable
number used in GSM to identify a subscriber.

"Inactive Subscriber" shall mean a Subscriber who (a) has terminated its
relationship with Client, (b) has been issued a final bill, (c) has a status of
"final" in Atlys(R), and (d) has a zero account balance or has a status of
"written off" in Atlys(R).

"Investigation Request" is defined in Attachment B to Work Order 2002-01.

"IP" or "Internet Protocol" shall mean the rules governing the exchange of data
at the network layer for the TCP/IP internet protocol suite. IP provides
addressing and segmentation information so that routers can forward packets
across an internet, and determines the optimum route for a message to reach its
destination.

"ISP" or "Internet Service Provider" shall mean a telecommunications company,
which provides subscriber access to the internet.

"ITEM" is defined in Attachment B to Work Order 2002-02.

"ITEM Log" is defined in Attachment B to Work Order 2002-02.

"IVR" or "Interactive Voice Response" shall mean an automated phone-answering
system that invites the caller to select from a list of choices using the
phone's touch-tone keypad.

Joint System Test Environment" see Acceptance Test Environment.

"Key Service Level Agreements" or "Key SLAs" shall mean those Service Levels
(the "Key Service Levels") defined in Attachment C to Work Order 2002-02.

"LNP" or "Local Number Portability" shall mean the feature that allows customers
to retain telephone numbers while changing carriers.

"Maintenance Release" shall mean any enhancement, upgrade, new functionality or
new version of the Systems intended to eliminate or mitigate problems and/or
improve operation.

"Maintenance Request" is defined in Attachment B to Work Order 2002-02.

"Management Reports" is defined in Section 9.2.

"Market" shall mean a market area licensed by the FCC to provide wireless
service.

"MDN" shall mean mobile dialed number.

"Mediation Manager" is Convergys' proprietary software product used by Convergys
to perform certain event mediation functions, including acquisition of data from
network elements, validation and manipulation of data according to business
rules, and distribution of data to downstream applications.

"MSA" shall mean the Master Services Agreement between Convergys and Client
dated as of the Effective Date.

"MSID" or "Mobile Station Identifier" shall mean the identifier for a mobile
device such as a cellular phone or a mobile personal digital assistant.

"MSISDN" or "Mobile Subscriber Integrated Services Digital Network Number" shall
mean the dialable number that callers use to reach a mobile subscriber.

"Nondisclosure Agreement" shall mean the Mutual Nondisclosure Agreement dated
June 18, 2002, a copy of which is attached hereto as Attachment B.

"Non-Production Environments" shall mean the three (3) separate and distinct
instances of the System provided by, maintained, administered, provisioned,
owned, and operated by Convergys for purposes other than provision of the Data
Processing Services, as further defined using the following terms in Work Order
2002-01: (a) "Acceptance Test Environment"; (b) "PreProduction Environment" and
(c) "Training Environment".

"Non-Production Environment Support Services" is defined in Work Order 2002-02.

"NRUF" or "Numbering Resource Utilization/Forecasting" shall mean the
semi-annual report on phone number utilization and demand forecasts.

"Originator" is defined in Attachment B to Work Order 2002-02.

"PAD" or "Packet Assembly-Disassembly" shall mean the process by which data is
segmented and assembled into an ordered series of packets and transmitted across
a network where, at the other end of the network, the packets are disassembled
into the original data sent.

"Page " is defined in Section 2.1 of Attachment A to Work Order 2002-02.

"PDP" or "Packet Data Protocol" shall mean the protocol used by packet data
networks connected to a GPRS network.

"PLMN" or "Public Land Mobile Network" shall mean a network a service provider
establishes for providing land mobile services.

"Point of Presence" or "POP" shall mean an entry point for connection into the
network.

"Post Termination Transition Period" is defined in Section 29.3 of the MSA.

"Pre-existing Intellectual Property" is defined in Section 15.1.

"Prepaid" shall mean a billing arrangement between Client and its customers in
which the customers pay an advance amount of money for an equivalent amount of
service.

"PreProduction Environment" is defined in Work Order 2002-01.

"Pre-Verification Analysis" or "PVA" is a process conducted prior to each
production bill cycle in Atlys(R) to initially validate the bill cycle.
Pre-verification billing is run against a small subset of accounts (50 to 200)
defined by Client, which covers a mixture of account types and price plans. The
production bill cycle is completed once the pre-verification run has been
approved.

"Problem" is defined in Attachment D to Work Order 2002-02.

"Problem Resolution Management Process" shall mean the processes and procedures
the parties will follow in addressing issues that arise in the course of
providing systems operations and bill production services, from the moment of
problem identification through post problem review as set forth in Attachment D
to Work Order 2002-02.

"Production Environment" shall mean the instance of the System owned and
operated by Convergys to provide the Data Processing Services, as defined in
Work Order 2002-02.

"Professional Services" shall mean the professional and consulting services
provided by Convergys to Client as described herein or in a Work Order.

"Professional Services Rate" shall mean the rate charged by Convergys for
Professional Services as set forth in Section 3.2.

"Program Management Team" shall mean the team of Convergys personnel that will
manage the Services for the Client.

"Program Manager" shall mean the Convergys employee who will supervise the day
to day operations of the Project Management Team.

"Project Plan" shall mean the plan jointly developed by the parties relating to
the performance of services under this Agreement.

"Proprietary Materials" is defined in Section 15.2.

"RAS" or "Reporting and Analysis Component" shall mean a reporting tool owned by
and proprietary to Convergys that will be used to track and report active Client
subscriber volumes.

"Receiver" is defined in Attachment B to Work Order 2002-02.

"Release Implementation Services" is defined in Work Order 2002-02.

"ROM" or "Rough Order of Magnitude" is defined in Attachment B to Work Order
2002-02.

"Root Cause Analysis Process" is defined in Attachment D to Work Order 2002-02.

"Root Cause Analysis Report" or "RCA Report" is defined in Attachment D to Work
Order 2002-02.

"S-CDR" or "Serving Call Detail Record" is a record of information generated in
connection with GPRS technology.

"Script" shall mean a line of code or computer program that, when executed, is
used to manipulate data within the application without changing the underlying
application's source code.

"SEC" means the Securities and Exchange Commission.

"Self Care" shall mean the Atlys(R) component described in Attachment A to Work
Order 2002-01.

"Service Agreement Line Item" or "SALI" is defined in Attachment A to Work Order
2002-01.

"Service Level Agreement" or "SLA" shall mean the performance service levels
that Convergys is required to meet with respect to each Service provided to
Client. The standards are to be set forth as part of each Work Order or as part
of a separate agreement.

"Services" shall mean, collectively, the Data Processing Services, Professional
Services, Implementation Services, Conversion Services, Software Development
Services, Business Continuity Services and other services provided by Convergys
to Client pursuant to the terms of this Agreement.

"Short Message Service" or "SMS" shall mean a form of wireless data usage that
provides the ability for subscribers to send and receive text messages on their
mobile phone.

"SIM" or "Subscriber Identity Module" shall mean the chip or card which contains
the IMSI information and which can be inserted in equipment to identify the
subscriber to the network.

"SOA" means service order administration.

"Software Development Services" is defined in Work Order 2002-02.

"Source System" shall mean a billing system used to process Client subscribers
prior to conversion to Atlys(R).

"Span of Control" shall mean the Convergys Span of Control shall be deemed the
hardware, software, and network that resides within the physical confines of a
Convergys Data Center.

"Special Processing" shall mean any process that requires Convergys or Client to
adjust the production environment in an exception mode in order for that process
to successfully complete.

"Standard Interfaces" are defined in Attachment E to the Work Order 2002-01.

"Standard Reports" is defined in Work Order 2002-01.

"Sub - Project Code" or "SPC" is defined in Section 8.1 of the Work Order
2002-02.

"Subscriber" shall mean an individual user who is using the service(s) offered
by Client. Such an individual, also known in Atlys(R) as a subscription, can
have zero to n services tied to his/her subscription. For example, a subscriber
could have both wireless voice service and a wireless data service as part of
his/her subscription with Client. A Subscriber may be Active or Inactive as
defined herein.

"System" shall mean (a) Convergys' proprietary Atlys(R) software in use for
Client pursuant to this Agreement, (b) any Releases of Atlys(R) which Convergys
implements for Client, and (c) Third Party Software provided by Convergys to
provide the Data Processing Services to Client pursuant to this Agreement.

"Term" shall have the meaning set forth in Section 2.0 of this Agreement.

"Termination Fee" shall mean the fee to be paid by Client to Convergys in the
event Client terminates this Agreement pursuant to Section 19.1 or Section 30.2
of the MSA.

"TDMA" or "Time Division Multiple Access" is a digital transmission scheme that
multiplexes three signals over a single channel.

"Third Party" shall mean any party other than Client or Convergys.

"Third Party Software" shall mean any program, or component of a program, that
is licensed to Client or Convergys by a Third Party and is necessary to provide
the Services. The Convergys provided Third Party Software as of the Effective
Date is listed in Attachment C to Work Order 2002-01.

"Time and Materials" shall mean a Convergys and Client billing arrangement in
which Client is billed the actual time and materials Convergys expended in
completing a request.

"Training Services" is defined in Work Order 2002-02.

"Train-the-Trainer" is defined in Attachment B to Work Order 2002-01.

"Trouble Report" or "TR" is defined in Attachment D to Work Order 2002-02.

"Work Order" shall mean the mutually agreed upon work statement that authorizes,
and specifies the terms for Convergys to provide services under this Agreement.

"Work Management System" or "WMS" shall mean the work management software tool
owned, operated, and administered by Convergys to track Enhancement,
Maintenance, Investigation and Trouble Requests.

"Work Request" is defined in Attachment B to Work Order 2002-02.

"Work Request Process" is defined in Attachment B to Work Order 2002-02.

"Work Request Services" is defined in Work Order 2002-02.


                              [END OF ATTACHMENT A]

<PAGE>

EXECUTION COPY

                                  ATTACHMENT B

                         MUTUAL NON-DISCLOSURE AGREEMENT


     This Mutual Non-Disclosure Agreement (the "Agreement"), effective as of
June 18, 2002, by and between DOBSON CELLULAR SYSTEMS, INC. ("Dobson"), an
Oklahoma corporation, with its principal place of business at 14202 Wireless
Way, Oklahoma City, Oklahoma 73034 and CONVERGYS CORPORATION. ("Convergys"),
with an address of 201 E. Fourth Street, Cincinnati, Ohio 45202, as Parties to
this Agreement. For purposes of this Agreement, all references to Dobson and
Convergys shall also include the shareholders, owners, officers, employees,
attorneys and agents of Dobson and Convergys, individually and collectively.

     WHEREAS, each of Dobson and Convergys (or their respective subsidiaries)
has certain confidential or proprietary information (the "Information," as
further defined in Section 2 of the Agreement below) that is material to the
Project (as further defined in Section 1 of the Agreement) and which may be
beneficial to disclose.

     NOW THEREFORE, for good and valid consideration, the receipt and
sufficiency of which are hereby acknowledged, the Parties hereto, intending to
be legally bound, agree as follows:

     1. Project Defined. In connection with the discussions, negotiations, and
considerations of Dobson and Convergys involving GSM/GPRS GSM billing (the
"Project"). Each Party (the "Recipient") may receive from the other Party (the
"Disclosing Party") information of a non-public nature for use by Recipient and
its officers, directors, agents, employees and representatives, including
financial and legal advisers (collectively, "Representatives"), in the course of
the negotiation and performance of the Project, if the parties hereto
subsequently execute an agreement.

     2. Information Defined. Recipient acknowledges that, in the course of
negotiation of and its performance under the agreement, if any, Recipient may
receive certain private and proprietary information from or about Disclosing
Party or its affiliates, including, but not limited to, technical, financial or
business information and models, names of customers or partners, proposed
business deals, reports, plans, market projections, software programs, customer
data, or any other private and proprietary information may include certain trade
secrets ("Information"). The term "Information" as used herein also includes:
(i) the fact that the Information has been made available to or is being
inspected or evaluated by Recipient; and (ii) any information, work papers,
analyses, compilations, projections, studies, documents, terms, conditions,
correspondence, facts, or other materials derived or produced by Recipient or
its representatives for Disclosing Party. Any information supplied by Disclosing
Party to Recipient prior to the execution of this Agreement shall be subject to
the same treatment as the Information made available after the execution of this
Agreement.

     3. Exclusions From Definitions. The term "Information" as used herein does
not include any data or information that: (a) is already known to Recipient at
the time it is disclosed to Recipient; or (b) is before being divulged by
Recipient: (i) has become generally known to the public through no wrongful act
of Recipient or its representatives; (ii) has been rightfully received by
Recipient from a third party without restriction on disclosure and without a
breach of an obligation of confidentiality running directly or indirectly to
Disclosing Party; (iii) has been approved for release by a written authorization
by Disclosing Party; or (iv) is independently developed by Recipient without the
use, directly or indirectly, of the Information received from Disclosing Party.

     4. Non-Disclosure Obligation. Recipient shall keep the Information
confidential and shall not disclose such Information, in whole or in part, to
any person other than its Representatives who need to know such Information in
connection with Recipient's performance under the Agreement, except with prior
written consent of Disclosing Party or as otherwise permitted hereunder. Such
Representatives shall be informed by Recipient of the confidential nature of the
Information and shall be required by Recipient to agree in writing to be bound
by this Agreement. To the extent that such Representatives are employees of
Recipient who have signed a non-disclosure agreement with Recipient as a part of
their employment, which non-disclosure agreement generally requires them to
protect confidential information in the possession of Recipient, no additional
written non-disclosure agreement will be required hereunder. The information
shall be used by Recipient solely for the purpose of performing under the
Agreement, and shall not otherwise be used for Recipient's own benefit or for
any purpose detrimental to the interests of Disclosing Party.

     5. Standard of Protection. For the purpose of complying with the
obligations set forth herein, Recipient shall use efforts commensurate with
those that it employs for the protection of corresponding sensitive information
of its own, which shall in any event be no lesser a standard than the type of
efforts that would be taken by a reasonable business for the protection of its
own highly confidential information and trade secrets.

     6. Compliance with Legal Process. In the event that Recipient is legally
requested or required (by oral questions, interrogatories, requests for
information or documents, subpoena, civil investigative demand, or similar
process or, in the opinion of counsel for Recipient, by federal or state
securities or other statutes, regulations, or laws) to disclose any Information,
Recipient shall promptly notify Disclosing Party of such request or requirement
prior to disclosure so that Disclosing Party may seek an appropriate protective
order and/or waive compliance with the terms of this Agreement.

     7. Ownership; Return of Information. All information (including tangible
copies and computerized or electronic versions and summaries thereof) shall
remain the property of Disclosing Party. Within ten (10) days following the
receipt of a written request from Disclosing Party, Recipient shall deliver to
Disclosing Party all tangible materials containing or embodying the Information
received from Disclosing Party, together with a certificate executed by an
officer of Recipient certifying that all such materials in Recipient's
possession or control have been delivered to Disclosing Party or destroyed.
Recipient shall not assert directly or indirectly any right with respect to the
information which may impair or be adverse to Disclosing Party's ownership
thereof.

     8. Remedies for Breach. Recipient understands and agrees that money damages
would not be a sufficient remedy for any breach of this Agreement and that
Disclosing Party shall be entitled to seek injunctive or other equitable relief
to remedy or forestall any such breach or threatened breach. Such remedy shall
not be deemed to be the exclusive remedy for any breach of this Agreement, but
shall be in addition to all other rights and remedies available at law or in
equity.

     9. No Representations or Further Obligations. Neither this Agreement nor
the disclosure of Information shall constitute or imply any promise or intention
to make any purchase of services by Disclosing Party. None of the Information
which may be disclosed by Disclosing Party shall constitute any representation,
warranty, assurance, guarantee, or inducement by Disclosing Party to Recipient
of any kind, and, in particular, with respect to the accuracy or completeness of
any Information or the non-infringement of trademarks, patents, copyrights, mask
protection rights, or any other intellectual property rights, or other rights of
third persons. It is understood that this Agreement does not obligate Disclosing
Party to enter into any further agreements or to proceed with any possible
relationship or other transaction.

     10. Term; Termination. This Agreement shall terminate as to the exchange of
any new Information upon termination of any proposed agreement between the
Parties. Either party may terminate the exchange of Information under this
Agreement at any time by written notice to the other specifically referencing
this Agreement. In any event, however, the obligations of Recipient to maintain
the confidentiality of the Information it has received under this Agreement
shall continue for a period of three (3) years after such termination and then
terminate; provided, however, that such obligation shall continue indefinitely
as to Information constituting a trade secret under applicable law for so long
as such Information remains a trade secret.

     11. No Waiver. No failure or delay by Disclosing Party in exercising any
right, power, or privilege hereunder shall operate as a waiver thereof, nor
shall any single or partial exercise thereof preclude any other or further
exercise thereof or the exercise of any other right, power, or privilege
hereunder.

     12. Amendment. This Agreement may not be modified, supplemented, or amended
orally, but only by a writing signed by both Parties hereto.

     13. Applicability to Associated Parties. Any information disclosed to
Recipient by any of Disclosing Party's affiliated companies or by any company,
person or other entity participating with Disclosing Party in any consortium,
partnership, joint venture, or similar business combination which would
otherwise constitute Information hereunder if disclosed by Disclosing Party,
shall be deemed to constitute Information under this Agreement, and the rights
of Disclosing Party under this Agreement may be enforced by any such affiliate
or other entity in addition to Disclosing Party with respect to any violation
relating to the Information disclosed by such affiliate or other entity as if
such entity were also a party to this Agreement.

     14. Applicable Law. The validity, construction and performance of this
Agreement shall be governed by the laws of the State of Oklahoma, without regard
to provisions concerning conflicts of law.

     15. Severability. If any provision of this Agreement is held by a court of
competent jurisdiction to be invalid or unenforceable, such provision shall be
deemed deleted from this Agreement and the remaining provisions of this
Agreement shall remain in full force and effect.

     16. Entire Agreement. This Agreement constitutes the sole and entire
Agreement between Parties concerning the subject matter hereof and it replaces
all previous communications, representations, understandings, and agreements
between them, whether oral or written.

     17. Captions and Headings. The captions and section headings used in this
Agreement are for convenience only, are not a part of this Agreement, and shall
not be used in construing it.

     18. Construction. Both of the Parties hereto have participated in the
drafting of this Agreement. Consequently, no provision of this Agreement shall
be construed in favor of or against any party because its attorney drafted the
provision.

     19. Counterparts. This Agreement may be executed in any number of
counterpart copies, each of which shall constitute an original, all of which
together shall constitute one and the same document.

     20. Notice. All notices, demands, or consents required or permitted under
this Agreement (collectively "Notices") shall be in writing and shall be
delivered by courier or by Federal Express or similar overnight service. Notices
shall be delivered to:

     Notice shall be delivered to Dobson at:

          Ronald L. Ripley, Senior Corporate Counsel
          Dobson Cellular Systems, Inc.
          14201 Wireless Way
          Oklahoma City, OK 73134

     Notice shall be delivered to Convergys at:

          Convergys, Inc.
          Attn: Claudia Cline, Vice President Legal
          201 E. Fourth Street
          Cincinnati, OH 45202

Notice shall be served by UPS or other reliable overnight service, directed to
the addresses stated above.


<PAGE>


     IN WITNESS WHEREOF, the parties have executed this Agreement as of the day
and year first written above.

                                    DOBSON CELLULAR SYSTEMS, INC.,
                                    an Oklahoma Corporation


                                    By:
                                       R. Thomas Morgan
                                       Senior Vice President and
                                       Chief Information Officer




                                    CONVERGYS, INC.


                                    By:
                                       Claudia Cline
                                       Vice President, Legal


                              [END OF ATTACHMENT B]