Agreement No. ###-##-####

EXECUTION COPY


                               SERVICES AGREEMENT

                            BETWEEN VERIZON WIRELESS

                                       AND

                    CELLULAR TECHNICAL SERVICES COMPANY, INC.


                                                                    CONFIDENTIAL







EXECUTION COPY
contract #176-01-024

                                TABLE OF CONTENTS


                                                                             
ARTICLE I. TERMS AND CONDITIONS APPLICABLE TO THE ENTIRE AGREEMENT...............1
   1.1  DEFINITIONS..............................................................1
   1.2  SCOPE....................................................................6
   1.3  TERM AND TERMINATION.....................................................6
   1.4  TESTIMONY................................................................9
   1.5  PAYMENT..................................................................9
   1.6  NOTICE..................................................................11
   1.7  LAWS, RULES AND REGULATIONS.............................................12
   1.8  PROFESSIONALISM.........................................................12
   1.9  INSURANCE...............................................................12
   1.10 INDEPENDENT CONTRACTOR..................................................13
   1.11 VERIZON WIRELESS' PROPERTY..............................................13
   1.12 CTS PROPERTY............................................................14
   1.13 INFRINGEMENT............................................................14
   1.14 PLANT RULES AND SECURITY REQUIREMENTS...................................15
   1.15 USE AND OWNERSHIP OF INFORMATION........................................15
   1.16 PUBLICITY...............................................................16
   1.17 GOVERNING LAW...........................................................16
   1.18 LITIGATION EXPENSES.....................................................16
   1.19 ASSIGNMENT..............................................................16
   1.20 WAIVER..................................................................17
   1.21 AUDIT...................................................................17
   1.22 SUBCONTRACTING..........................................................17
   1.23 ARTICLE HEADINGS........................................................17
   1.24 SEVERABILITY............................................................17
   1.25 WARRANTIES..............................................................17
   1.26 INDEMNIFICATION.........................................................20
   1.27 FORCE MAJEURE...........................................................21
   1.28 BUSINESS CONDUCT........................................................21
   1.29 NO WAIVER, CUMULATIVE REMEDIES..........................................21
ARTICLE II. SUPPORT SERVICES....................................................22
   2.1  SCOPE OF COVERAGE.......................................................22
   2.2  TECHNICAL SUPPORT SERVICES..............................................22
   2.3  SOFTWARE SUBSCRIPTION SERVICES..........................................25
   2.4  CELL SITE HARDWARE MAINTENANCE..........................................25
   2.5  BLACKBIRD PLATFORM MONITORING SERVICES..................................27
   2.6  BACKUP & RESTORE SUPPORT SERVICES.......................................27
   2.7  ADDITIONAL VERIZON WIRELESS RESPONSIBILITIES............................28
ARTICLE III. ROAMING PROTECTION SERVICES .......................................31
   3.1  THE SERVICE.............................................................31
   3.2  MAINTENANCE OF CTS NETWORK..............................................32
   3.3  ADDITIONAL VERIZON WIRELESS RESPONSIBILITIES............................32

ARTICLE IV. SOFTWARE LICENSE ...................................................34
   4.1. LICENSE OF SOFTWARE.....................................................34
   4.2  SOURCE CODE.............................................................35
   4.3  PROPRIETARY RIGHTS......................................................35


Verizon Wireless/CTS Agreement  CONFIDENTIAL











                                                                            
ARTICLE V. ENTIRE AGREEMENT.....................................................37
   5.1  ENTIRE AGREEMENT........................................................37
   5.2  COUNTERPARTS............................................................37
   5.3  SIGNATURES..............................................................37
LIST OF EXHIBITS................................................................38
   EXHIBIT A....................................................................39
   EXHIBIT B ...................................................................40
   EXHIBIT C....................................................................41
   EXHIBIT D....................................................................45


Verizon Wireless/CTS Agreement    CONFIDENTIAL








                               SERVICES AGREEMENT

This Agreement is entered into as of January 1, 2001, by and between CELLULAR
TECHNICAL SERVICES COMPANY, INC., a Delaware corporation ("CTS"), and CELLCO
PARTNERSHIP, a Delaware general partnership, doing business as VERIZON WIRELESS
("Verizon Wireless ").

WHEREAS, Verizon Wireless, successor-in-interest to GTE Wireless Service
Corporation ("GTE"), and CTS entered into a certain Agreement pursuant to which
CTS provided certain services for certain software and hardware to GTE; and

WHEREAS, Verizon Wireless, successor-in-interest to Cellco Partnership, doing
business as Bell Atlantic Mobile ("BAM"), and CTS entered into a certain
Agreement pursuant to which CTS provided certain services for certain software
and hardware to BAM; and

WHEREAS, Verizon Wireless, successor-in-interest to AirTouch Cellular, Inc,
("AirTouch") and CTS entered into a certain Agreement pursuant to which CTS
provided certain services for certain software and hardware to AirTouch; and

WHEREAS, Verizon Wireless, successor-in-interest to New Par ("NP"), and CTS
entered into a certain Agreement pursuant to which CTS provided certain services
for certain software and hardware to NP; and

WHEREAS, Verizon Wireless, successor-in-interest to AirTouch Cellular of Georgia
("ATCG"), and CTS entered into a certain Agreement pursuant to which CTS
provided certain services for certain software and hardware to ATCG; and

WHEREAS, CTS and Verizon Wireless desire to enter into a new Agreement to
supersede the prior agreements with GTE, BAM, AirTouch, NP and ATCG, each a
prior company ("Prior Company") to continue the services provided under the
various agreements with the Prior Companies under the terms and conditions
stated herein; and

WHEREAS, CTS and Verizon Wireless agree that CTS will provide certain services
for certain software and hardware as more fully described in the Agreement on
the terms and conditions set forth below.

NOW, THEREFORE, in consideration of the mutual promises and covenants contained
herein and for other good and valuable consideration, the receipt and
sufficiency of which is hereby mutually acknowledged, CTS and Verizon Wireless
hereby agree as follows:

       ARTICLE I. TERMS AND CONDITIONS APPLICABLE TO THE ENTIRE AGREEMENT

1.1 DEFINITIONS.

     Whenever used in this Agreement with initial letters capitalized, the
     following terms shall have the following meanings:

     1.1.1  "Aggregate Fee" means the monies required to be paid by Verizon
            Wireless to CTS in connection with the transactions contemplated in
            this Agreement, as set forth in Section 1.5.3 below.

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     1.1.2   "Agreement" means this Agreement and any attached schedules,
             together with all amendments and supplements which may be made
             thereto from time to time by mutual agreement of the parties.

     1.1.3   "Call Data" means the combination of: (i) the industry standard
             digital data derived from the radio frequency call event
             originating from a telecommunications carrier's cellular network;
             and (ii) the CTS-proprietary digital data resulting from the
             measuring, processing, and formatting of information derived from
             such radio frequency call event as performed by a System.

     1.1.4   "Cell Site" means a cellular radio base station location consisting
             of radio, antenna, and power equipment: (i) that provides cellular
             telecommunications service to a particular geographic area; (ii) in
             which certain Components of a System are installed; (iii) that
             complies with the Infrastructure and Environmental Requirements;
             and (iv) in which a direct antenna frame hook-up is provided by
             Verizon Wireless for the Cell Site Hardware installed therein..

     1.1.5   "Cell Site Hardware" means the CTS-proprietary Hardware which is
             supplied by CTS for installation in Cell Sites.

     1.1.6   "Component" means an individual item of the Hardware or Licensed
             Programs.

     1.1.7   "Confidential Information" shall have the same meaning ascribed to
             such term in the Nondisclosure Agreement.

     1.1.8   "Connected System" means each System (as defined below) within the
             United States which is connected to the CTS Network in accordance
             with the terms of this Agreement and for which CTS provides Service
             for such System.

     1.1.9   "CTS Network" means the CTS network that (i) is comprised of CTS
             proprietary and non-proprietary computer equipment (including
             without limitation the On-Site Hardware), software, and networking,
             (ii) performs the Service, and (iii) to which one or more Systems
             are or will be connected in accordance with this Agreement.

     1.1.10  "Customization" means any modification, enhancement, or improvement
             to any Licensed Program that is made by CTS at the request of
             Verizon Wireless in accordance with this Agreement, and which is
             not made generally commercially available by CTS to other cellular
             carrier licensees of CTS in the United States.

     1.1.11  "Documentation" means CTS's standard user manual(s) for a Licensed
             Program and all other written documentation for a System that CTS
             furnishes or has furnished to Verizon Wireless for purposes of this
             Agreement (as such documentation may be reasonably modified or
             updated from time to time by CTS with notice to Verizon Wireless).
             Documentation may include, if applicable, documentation provided to
             CTS by its suppliers or licensors to the extent CTS is authorized
             by them to provide such documentation to Verizon Wireless.

     1.1.12  "Verizon Wireless Facility" means each Regional Processor Complex,
             Cell Site, or other location within a Licensed Market at which any
             Component of a System is installed.

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     1.1.13  "Governing Agreements" means this Agreement and all Schedules and
             attachments to any of the foregoing.

     1.1.14  "Hardware" means the following with respect to the System installed
             in a given Licensed Market: (i) the computer equipment and
             peripherals (including any operating system software bundled with
             such equipment as supplied by the equipment manufacturer) agreed by
             CTS and Verizon Wireless to be necessary to operate the
             configuration of such System as of the date hereof; and (ii) any
             additional computer equipment and peripherals as CTS and Verizon
             Wireless may, from time to time, agree in writing to add to such
             System as Hardware.

     1.1.15  "Hardware Documentation" means the design specifications setting
             forth the information required to enable a reasonably skilled
             hardware manufacturer to make the Cell Site Hardware.

     1.1.16  "Infrastructure and Environmental Requirements" means the physical,
             electrical, connectivity, and other infrastructure and
             environmental requirements described in Documentation furnished by
             CTS to Verizon Wireless (as the same may be reasonably modified or
             updated from time to time by CTS with notice to Verizon Wireless),
             which requirements are to be satisfied by Verizon Wireless at each
             Verizon Wireless Facility at which any portion of the CTS Network
             is installed in accordance with this Agreement.

     1.1.17  "Intellectual Property Rights" means any valid patent, copyright,
             trade secret, trademark, or other intellectual property right.

     1.1.18  "License" shall have the meaning ascribed to such term as set forth
             in Section 3.1.2 and 3.1.3 below, with respect to each Connected
             System, or the license granted to Verizon Wireless under Section
             4.1.1 below.

     1.1.19  "License Agreement" means Article IV, hereto.

     1.1.20  "Licensed Market" means for each of the market areas identified in
             the attached Exhibit B, the aggregate of the corresponding cellular
             service areas identified in such Exhibit that are covered by a
             System; and any additional market areas as Verizon Wireless may,
             from time to time, determine with the prior written approval of
             CTS.

     1.1.21  "Licensed Programs" means the following with respect to each System
             installed in a given Licensed Market: (i) the CTS-owned computer
             software (including firmware and patches), in object code form
             only, and any Third-Party Software, in object code form only,
             described on Exhibit C hereto; (ii) all New Releases, Maintenance
             Releases, and Customizations provided by CTS to Verizon Wireless
             for such System; and (iii) any additional software, data tables,
             and programs as CTS and Verizon Wireless may, from time to time,
             agree in writing to add to such System as Licensed Programs.

     1.1.22  "Maintenance Release" means a correction of errors, bugs, or
             defects in any Licensed Program that is made generally commercially
             available by CTS to its cellular carrier licensees in the United
             States, and may also include, at CTS's discretion, any minor
             modification, enhancement, or improvement to a Licensed Program.

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     1.1.23  "New Release" means any computer program or portion thereof which
             involves any modification, enhancement, or improvement to any
             Licensed Program that is: (i) made generally commercially available
             by CTS to its cellular carrier licensees in the United States; (ii)
             identified by CTS as either a "major" or "minor" new release; and
             (iii) not merely a Maintenance Release.

     1.1.24  "Nondisclosure Agreement" means that certain Nondisclosure
             Agreement of even date herewith between CTS and Verizon Wireless
             (the "Current NDA"), and to the extent not inconsistent therewith,
             includes any other nondisclosure agreements (including any
             amendments or supplements to such agreements) between CTS and any
             of the Prior Companies or any affiliate thereof. A copy of the
             Current NDA is attached hereto as Exhibit D.

     1.1.25  "Normal Business Hours" means from 6:00 a.m. to 5:00 p.m., Seattle
             time, Monday through Friday, excluding CTS holidays.

     1.1.26  "On-Site Hardware" means the following with respect to a Connected
             System: (i) the equipment and peripherals (including any software
             bundled with such equipment by CTS or the equipment manufacturer)
             for each System for which the Service is being provided in such
             quantities as CTS and Verizon Wireless agree are necessary to
             enable CTS to perform the Service for such System; and (ii) any
             additional equipment and peripherals as CTS and Verizon Wireless
             may, from time to time, agree in writing to add to this Agreement
             as On-Site Hardware.

     1.1.27  "Priority 1 Incident" means any condition where (i) a System is
             completely out of service (i.e., the System is completely down and
             is not capable of making any counterfeit-valid call decisions and
             RF fingerprint collections) or where the PreTect Graphical User
             Interface for a System is completely out of service for more than
             two (2) consecutive hours, and (ii) the source of the problem is a
             Regional Processing Complex (RP, AS, Gateway or Cisco Router).

     1.1.28  "Priority 2 Incident" means any condition where a System is up, but
             there is partial loss of functionality (i.e., the System is
             working, but there is partial loss of data communication). For
             example, any condition where the Cell Site Hardware at any Cell
             Site is completely out of service is a Priority 2 Incident.

     1.1.29  "Priority 3 Incident" means all conditions other than Priority 1
             Incidents and Priority 2 Incidents that affect a System (i.e.,
             anomalous System condition that does not impact the System's
             overall ability to collect data, make counterfeit-valid call
             decisions, or terminate counterfeit calls).

     1.1.30  "Regional Processor Complex" means each Verizon Wireless location
             at which regional processors for a System are installed.

     1.1.31  "Roaming Agreement" means that certain Article III, hereto.

     1.1.32  "Service User" means a telecommunications carrier which: (i)
             operates one or more systems comprised of the CTS Blackbird'r'
             Platform and PreTect'TM' fraud prevention application, pursuant to
             a written agreement between such carrier and CTS, and (ii)

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             has authorized CTS to transmit Call Data to and from such carrier
             and to otherwise perform the Service, pursuant to a written
             agreement between such carrier and CTS.

     1.1.33  "Source Code" means the source code form of the Licensed Programs,
             in a form suitable for reproduction by computer or photocopy
             equipment, and all material enhancements, modifications, revisions,
             and other changes thereto.

     1.1.34  "Specifications" means the specifications for a System as set forth
             in the attached Exhibit C.

     1.1.35  "Support Services" shall have the same meaning ascribed to such
             term in Section 2.1 below.

     1.1.36  "Support Services Agreement" means that certain Article II, hereto.

     1.1.37  "Supported Products" means the following for a given System: (i)
             the Licensed Programs; (ii) the Cell Site Hardware; and (iii) any
             CTS-certified Hardware that CTS agrees in writing to support under
             the terms of this Agreement and the applicable support service
             terms provided by the manufacturer of such Hardware.
             Notwithstanding the above, if CTS publishes a New Release, then
             only that release and the immediately preceding release (and no
             versions older than the immediately previous release) will be
             eligible for coverage under this Agreement; provided, that CTS will
             support the most current release of the Licensed Programs as of the
             date of this Agreement and each New Release subsequently provided
             under this Agreement for no less than six (6) months from the date
             that such release is provided to Verizon Wireless.

     1.1.38  "Support Contacts" shall have the meaning ascribed to such term in
             Section 2.7.1 below.

     1.1.39  "System" shall mean the combination of the Hardware and Licensed
             Programs configured and installed for use by Verizon Wireless
             within a designated Licensed Market in accordance with the terms of
             this Agreement.

     1.1.40  "Third Party" means any person or entity other than CTS, Verizon
             Wireless, or a person, association, partnership, corporation or
             joint stock company or trust that directly or indirectly, through
             one or more intermediaries, controls, is controlled by, or is under
             common control with, the Verizon Wireless. For purposes of the
             above definition, "control" means: (i) ownership of a majority of
             the voting power of all classes of voting stock; (ii) ownership of
             a majority of the beneficial interests in income and capital of an
             entity other than a corporation; (iii) ownership of a general
             partnership interest in a limited partnership; or (iv) ownership of
             a managing partnership interest in a general partnership.

     1.1.41  "Third-Party Software" means the following with respect to a given
             System: (i) the computer programs described on Exhibit C hereto
             that are licensed to CTS by Third Parties and that CTS sublicenses
             to Verizon Wireless, in object code form only, as part of the
             Licensed Programs, but for which CTS has no source code rights; and
             (ii) any additional software, data tables, and programs as CTS and
             Verizon Wireless may, from time to time, agree in writing to add to
             such System as Third-Party Software.

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1.2 SCOPE.

     1.2.1   CTS will provide the services described in this Agreement on the
             terms and conditions set forth below ("Services").

     1.2.2   All Services shall be performed in strict conformity with any oral
             or written instructions furnished to CTS by Verizon Wireless,
             provided that such instructions do not conflict with the terms of
             this Agreement. CTS will devote such time, efforts and resources to
             the performance of Services as are reasonably necessary to
             accomplish the tasks specified in this Agreement.

     1.2.3   Status of Systems.

             CTS and Verizon Wireless agree and acknowledge that (i) the current
             configuration of each System are defined in the most recent
             agreement, in each case, between CTS and each of the Prior
             Companies, and such configuration is incorporated herein, (ii) all
             Cell Sites and Cell Site Hardware have been paid for and accepted,
             and (iii) common names for each Licensed Market will be used (e.g.,
             the former BAM-NY market), and that Cell Sites and Regional
             Processing Centers shall remain in their current locations.

     1.2.4   Supply of Hardware.

             Verizon Wireless may purchase quantities of CTS-certified Hardware
             either from CTS or Third Parties approved in advance and in writing
             by CTS, subject to the terms of this Agreement. Certain
             CTS-certified Hardware purchased from Third Parties will be subject
             to an integration fee. Upon request, CTS shall furnish a list of
             CTS-certified Hardware and may update such list from time to time
             with written notice to Verizon Wireless. Except as specifically set
             forth herein, CTS shall have no liability with respect to any
             Hardware components supplied by any person or entity other than
             CTS.

1.3 TERM AND TERMINATION.

     1.3.1   Term.

             The term of this Agreement will commence on the date of this
             Agreement and will continue thereafter for an initial term ending
             on December 31, 2001. This Agreement may be extended by Verizon
             Wireless for a one-year term as follows: such extension (i) shall
             cover only Verizon Wireless' West Coast markets and shall include a
             maximum of 600 Cell Sites, (ii) Support Services shall be provided
             by CTS for a fee of $1,725,000, which fee shall be due and payable
             in full on January 1, 2002, (iii) Verizon Wireless must give
             written notice of it intent to exercise such renewal option no
             later than September 30, 2001, and (iv) is subject to CTS and
             Verizon Wireless agreeing on additional reductions in CTS'
             technical support coverage for the renewed markets. All other terms
             and conditions hereof shall remain in effect during any renewal
             term, except as the parties otherwise expressly agree to in
             writing. CTS and Verizon Wireless agree to negotiate in good faith
             to expand the coverage to sites in excess of 600 for 2002. Such
             contract renegotiation (including fees and services to be provided)
             will take into account geographic and market coverage for all of
             CTS' Blackbird Verizon Wireless' and CTS' costs of continuing its
             services for 2002. All

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             other terms and conditions hereof shall remain in effect during any
             renewal term, except as the parties otherwise expressly agree to in
             writing. Notwithstanding the above, this Agreement shall terminate
             as set forth under Section 1.3.2 below.

1.3.2 Termination

             a. This Agreement may be terminated in the Event of a Default or
                material breach of this Agreement by CTS. Any of the following
                shall be considered an "Event of Default":

                o CTS is adjudged bankrupt or insolvent; or

                o CTS makes a general assignment for the benefit of its
                  creditors; or

                o A trustee or receiver is appointed for CTS or for any of its
                  property; or

                o Any petition by or on behalf of CTS is filed to take advantage
                  of any debtor's act or to reorganize under the bankruptcy or
                  similar laws; or

                o CTS otherwise violates any material provision of this
                  Agreement, as defined in (b), below.

             b. Material Breach after Notice.

                Except as otherwise set forth in this Agreement, upon material
                breach or default under this Agreement by any party (the
                "breaching party"), if the other party ("non-breaching party")
                gives written notice of such breach or default and the same is
                not cured within thirty (30) days after delivery of such notice,
                then, without limitation of any other remedy available
                hereunder, the non-breaching party may terminate this Agreement
                by delivery of a notice of termination at any time thereafter
                before such breach or default has been cured; provided, that for
                any breach or default (other than a payment default or a default
                under Article IV,) that is not reasonably susceptible of cure
                within thirty (30) days, the breaching party shall have such
                additional time, up to ninety (90) additional days, as is
                reasonably necessary to cure the default, so long as such party
                continuously and diligently pursues such cure. The parties agree
                that the failure to make payments of the Aggregate Fee or other
                charges when due hereunder shall constitute a "material breach"
                of this Agreement.

             c. Immediate Termination.

                Notwithstanding anything to the contrary, this Agreement and the
                License may be immediately terminated upon written notice: (i)
                at the option of CTS in the event that Verizon Wireless violates
                any of the provisions of Article IV, in any way without the
                prior written consent of CTS, and Verizon Wireless fails to cure
                such violation within (3) days after CTS's delivery of notice of
                breach to Verizon Wireless; or (ii) at the option of either
                party if the other party materially violates the provisions of
                the Nondisclosure

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                Agreement, and such violation cannot be or is not cured in a
                manner contemplated in the Nondisclosure Agreement.

     1.3.3   Effect of Expiration or Termination.

             a. Following the expiration or termination of this Agreement,
                Verizon Wireless shall have the right to use the Licensed
                Programs and Documentation as provided under the License with
                respect to the configuration of Systems installed as of the
                expiration or termination of this Agreement, until the first to
                occur of any of the following: (i) if this Agreement is
                terminated pursuant to Sections 1.3.2 due to a breach or default
                by Verizon Wireless, then the License shall cease upon
                termination of this Agreement; or (ii) if this Agreement expires
                or is terminated pursuant to Section 1.3.2 due to a breach or
                default by CTS, then the License shall continue under the
                survival terms described in Section 1.3.5 until breach or
                default by Verizon Wireless and the expiration of any applicable
                cure period with respect to such breach or default.

             b. Upon the expiration or termination of this Agreement, Verizon
                Wireless shall immediately cease use of the Confidential
                Information of CTS (excluding copies of Licensed Programs and
                Documentation in Verizon Wireless' possession as of such
                expiration or termination, which Verizon Wireless may retain and
                use for the duration of the License pursuant to this Section
                1.3.3, for the sole purpose of supporting then-installed
                Systems) and shall, at CTS's election, either: (i) return to CTS
                the original and all copies of the same, in whole or in part, in
                any form, including partial copies and modifications, and any
                related materials received from CTS, or (ii) furnish to CTS a
                certified executed document stating that the same has been
                destroyed. Upon the termination of the License, Verizon Wireless
                shall immediately return or destroy all copies of Licensed
                Programs and Documentation retained for use pursuant to this
                Section 1.3.3 in accordance with the procedures set forth in
                this subsection.

             c. Upon the expiration or termination of this Agreement, CTS shall
                immediately cease use of the Confidential Information of Verizon
                Wireless (except as the parties otherwise expressly agree to in
                writing) and shall, at Verizon Wireless' election, either: (i)
                return to Verizon Wireless the original and all copies of the
                same, in whole or in part, in any form, including partial copies
                and modifications, and any related materials received from
                Verizon Wireless, or (ii) furnish to Verizon Wireless a
                certified executed document stating that the same has been
                destroyed.

     1.3.4   Duties Upon Termination.

             a. All accrued and unpaid Fees and other charges hereunder shall be
                immediately due and payable upon termination of this Agreement.
                Termination of this Agreement shall not be construed to waive or
                release any claim which a party is entitled to assert at the
                time of such termination, and the applicable provisions of this
                Agreement shall continue to apply to such claim until it is
                resolved.

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             b. Following the expiration or termination of this Agreement, CTS
                shall promptly remove all components of the CTS Network located
                at Verizon Wireless Facilities, and Verizon Wireless shall
                cooperate with CTS and provide CTS with such access to Verizon
                Wireless Facilities as CTS reasonably requires for the purpose
                of removal of all such components.

     1.3.5   Survival Terms.

             Upon termination of this Agreement, all obligations of the parties
             hereunder shall cease, except those obligations described in
             Sections 1.3.2, 1.3.3, 1.3.4, 1.4, 1.5, 1.18, 1.25.9, 1.25.10,
             1.26, 4.1.2 and 5.1 , which provisions shall survive the
             termination of this Agreement. Termination of this Agreement shall
             not be construed to waive or release any claim which a party is
             entitled to assert at the time of such termination, and the
             applicable provisions of this Agreement shall continue to apply to
             such claim until it is resolved.

     1.4     TESTIMONY.

             Matters relating to this Agreement may be in issue before various
             regulatory or judicial bodies. CTS agrees to have appropriate
             members of its firm, including senior members, willing to testify
             at appropriate times and reasonable fees regarding any aspect of
             this Agreement as known to CTS.

1.5 PAYMENT.


     1.5.1   The cost to Verizon Wireless for the performance of the Services
             shall be payable in accordance with the terms of Sections 1.5.3 and
             1.5.4, below.

     1.5.2   All invoices from CTS to Verizon Wireless shall be sent to Verizon
             Wireless at the address indicated in this Agreement and must
             include the Contract number. CTS's last invoice submitted shall be
             marked "FINAL."

     1.5.3   Aggregate Fee.

             a. In consideration for the services provided by CTS hereunder,
                including all Base Support Fees, Blackbird Platform Monitoring
                Services Fees, Backup & Restore Support Services Fees and Frame
                Relay Fees as selected on Exhibit A, and under the License
                Agreement and the Roaming Agreement, Verizon Wireless hereby
                agrees to pay the amount of $4,275,000, which Aggregate Fee
                shall be invoiced as follows: $2,275,000 due upon execution of
                this Agreement, and $2,000,000 due June 1, 2001. Verizon
                Wireless will also pay CTS for re-marketed HP and Cisco support
                services as defined in Section 2.4.2(d), below.

             b. Verizon Wireless shall provide to CTS an executed blanket
                purchase order in the amount of $20,000. Such purchase order may
                be used by CTS to cover the cost of non-returned replacement
                parts as described in , Section 2.4.2(c), and additional
                services that may be requested by Verizon Wireless and

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                approved in advance by Verizon Wireless HQ Fraud Prevention &
                Strategy Department during the term of this Agreement and that
                are not covered by the Aggregate Fee (e.g., reconfiguration of
                markets, additional renaming of sites as described in Section
                2.2.1(a), below, off-hours calls, Verizon Wireless-requested
                training programs and other special projects). Such charges
                shall be governed in accordance with Section 1.5.4(b), below.

     1.5.4   Standard Terms.

             a. In addition to the Aggregate Fee and any other charges required
                to be paid by Verizon Wireless to CTS hereunder, Verizon
                Wireless shall pay (or, at CTS's election, reimburse CTS) for
                all federal, state, and local taxes and withholding requirements
                in connection with the transactions contemplated by this
                Agreement (excluding taxes based on CTS's net income or its
                authority to do business within a given state). Such taxes
                specifically include, without limitation: (i) excise, sales, use
                and royalty taxes, withholding taxes and related requirements,
                value-added taxes, all similar taxes and charges now in effect
                or enacted in the future; and (ii) all interest and penalties
                which may result from the failure to pay any of such taxes or
                charges. If CTS receives any notice of deficiency with respect
                to any such taxes or charges, CTS will promptly deliver notice
                thereof to Verizon Wireless so that Verizon Wireless may have a
                reasonable opportunity to contest such taxes and any related
                interest and penalties.

             b. Verizon Wireless will pay CTS for all services requested and
                authorized by Verizon Wireless in writing which are not
                specifically covered under the Aggregate Fee at CTS's
                then-current rates for labor (presently $210 per hour), parts,
                and materials, plus all reasonable expenses incurred by CTS or
                its subcontractors in providing such services (including without
                limitation travel, lodging, per diem expenses, long distance
                telephone charges, and similar expenses). Verizon Wireless will
                be charged a minimum of two hours of service for the performance
                of any such services, subject to a 1.5 multiplier applied for
                overtime work and a 2.0 multiplier applied for Sunday and
                holiday work.

             c. Except as otherwise expressly set forth in this Agreement or any
                schedule hereto: (i) CTS will invoice Verizon Wireless for
                amounts to be paid hereunder, and Verizon Wireless will pay the
                amounts described in each invoice within forty-five (45) days
                after receipt of the applicable invoice; (ii) Verizon Wireless
                shall not be entitled to the return or reimbursement of any
                compensation paid to CTS pursuant to this Agreement; and (iii)
                the Aggregate Fee and any other charges hereunder shall be paid
                to CTS in immediately available funds in United States Dollars.

             d. If Verizon Wireless fails to pay any sum when due and payable in
                excess of forty-five (45) days, CTS reserves the right to
                invoice Verizon Wireless for interest at a rate of one percent
                (1%) per month, or the maximum rate permitted by applicable law
                if lower, accruing from the due date of such payment until paid.
                If CTS is entitled to the sums sought to be collected, it

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                may also be entitled to receive all costs expended by CTS in
                collecting those sums, including without limitation reasonable
                attorneys' fees.

             e. If termination occurs prior to June 1, 2001, when the second
                payment of the Aggregate Fee is due, no further payments will be
                due to CTS. If such termination occurs after the second payment
                is due, CTS will refund Verizon Wireless one sixth (1/6) of the
                second payment for every month of service not provided. The
                beginning date for calculation of refund will be the date that
                the incident causing material breach occurred.

1.6 NOTICE.


     1.6.1   Any notice to be given hereunder by either party to the other shall
             be in writing and shall be valid and sufficient if dispatched by:
             (a) registered or certified mail, return receipt requested, postage
             prepaid in any post office in the United States; (b) hand delivery;
             (c) recognized overnight courier prepaid; or (d) via facsimile
             transmission upon electronic confirmation of receipt.

     1.6.2   Notices to Verizon Wireless shall be addressed to:


             Verizon Wireless
             One Verizon Place
             Alpharetta, GA 30004
             Attention:  Jeffrey Schaulin, Associate Director
             - Fraud Prevention and Strategies
             Mail Code; GA1A2FPS

             With a copy to:

             Verizon Wireless
             One Verizon Place
             Alpharetta, GA 30004
             Attention:  Allen Edenfield, Manager - Contracts
             Mail Code; GA2A1PRO

             With a copy to:


             Verizon Wireless
             180 Washington Valley Road
             Bedminster, New Jersey 07921
             Attention: S. Mark Tuller, Esq. General Counsel

             Notices to CTS shall be addressed to:

             2815 Second Avenue, Suite 100
             Seattle, Washington 98121
             Attention: Legal Department
             Telefax: (206) 269-1404

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     1.6.3   If either party changes its address during the term hereof, it
             shall so advise the other party in writing and any notice
             thereafter required to be given shall be sent to such new address.

1.7 LAWS, RULES AND REGULATIONS.

             If required by federal law, CTS shall comply, at its own expense,
             with the provisions of the Fair Labor Standards Act of 1938, as
             amended, and all other applicable state and municipal requirements
             and those of state and federal laws applicable to CTS as an
             employer of labor or otherwise.

1.8 PROFESSIONALISM.


     1.8.1   The services to be provided by CTS under this Agreement shall
             proceed with promptness and diligence and shall be executed in
             accordance with the highest professional standards in the field, to
             Verizon Wireless' reasonable satisfaction.

     1.8.2   CTS shall replace, at Verizon Wireless' request, any employee,
             agent or consultant, furnished by CTS who, in Verizon Wireless'
             reasonable opinion, is incapable, uncooperative or otherwise
             unacceptable in the execution of the services to be provided under
             this Agreement.

     1.8.3   Verizon Wireless shall have the option to require CTS to correct
             any deficiencies in its work product or services, at no additional
             cost to Verizon Wireless. Deficiencies are to be determined by
             generally accepted professional standards, including the use of
             peer review.

1.9 INSURANCE.


     1.9.1   CTS shall secure and maintain at its expense during the Term, or
             Renewal Term as applicable, the following: (i) workers'
             compensation insurance as required by Statute, and Employer's
             Liability insurance with limits of not less than $1,000,000. per
             occurrence; (ii) commercial general liability insurance (including,
             but not limited to, premises-operations, broad form property
             damage, products/completed operations, contractual liability,
             independent contractors, personal injury) with limits of at least
             $2,000,000 combined single limit for each occurrence (iii)
             commercial automobile liability with limits of at least $2,000,000
             combined single limit for each occurrence; (iv) professional
             liability (Errors and Omissions) with limits of not less than
             $1,000,000 per claim; and (v) excess liability insurance in the
             umbrella form with a combined single limit of $5,000,000.


     1.9.2   Verizon Wireless shall be named as additional insured on all
             policies of insurance purchased by CTS. CTS shall furnish
             certificates evidencing such insurance to Verizon Wireless upon the
             execution of this Agreement and thereafter on each anniversary of
             the Effective Date or upon written request of Verizon Wireless.
             Each insurance policy shall state by endorsement that such policy
             shall not be canceled or materially changed without at least ten
             (10) days prior written notice to Verizon Wireless by mail, and
             shall immediately notify Verizon Wireless of any reduction or
             possible reduction in the limits of any such policy where such
             reduction, when added to any previous reductions, would exceed
             twenty-five (25%) percent of the limits.

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1.10 INDEPENDENT CONTRACTOR.

     1.10.1  Neither CTS nor its officers, directors, employees or consultants,
             shall be deemed to be employees or agents of Verizon Wireless, it
             being understood that CTS is an independent contractor for all
             purposes and at all times; and CTS shall be solely responsible for
             the safety and supervision of its consultants as well as for the
             withholding and payment of all federal, state and local personal
             income taxes, social security, unemployment and sickness disability
             insurance and other payroll taxes with respect to its employees,
             including contributions from them when and as required by law. CTS
             shall timely pay such taxes or charges to the appropriate
             governmental agencies with respect to its officers, directors,
             employees or consultants. CTS shall be liable for all workers'
             compensation benefits, premiums and other similar charges with
             respect to its officers, directors, employees or consultants .

     1.10.2  CTS shall indemnify and hold harmless Verizon Wireless for any
             taxes, interest, penalties, damages, costs, charges, expenses or
             other sums incurred by Verizon Wireless, including, but not limited
             to, charges or assessments from any revenue authority, arising from
             any claim against Verizon Wireless or any of its affiliates, by
             such authority based on the services provided under this Agreement
             or compensation therefor.

1.11 VERIZON WIRELESS' PROPERTY.

     1.11.1  Title to all property owned by Verizon Wireless and furnished to
             CTS shall remain in Verizon Wireless.

     1.11.2  Any property owned by Verizon Wireless and in CTS's possession or
             control shall be used only in the performance of this Agreement
             unless authorized in writing by Verizon Wireless. CTS shall
             adequately protect such property, and shall deliver or return it to
             Verizon Wireless or otherwise dispose of it as directed by Verizon
             Wireless.

     1.11.3  CTS shall be responsible for any loss of or damage to property
             owned by Verizon Wireless and in CTS's possession or control.

1.12 CTS PROPERTY

     1.12.1  Title to all property owned by CTS and furnished to Verizon
             Wireless shall remain in CTS.

     1.12.2  Any property owned by CTS and in Verizon Wireless' possession or
             control shall be used only in the performance of this Agreement
             unless authorized in writing by CTS. Verizon Wireless shall
             adequately protect such property, and shall deliver or return it to
             CTS or otherwise dispose of it as directed by CTS.

     1.12.3  Verizon Wireless shall be responsible for any loss of or damage to
             property owned by CTS and in Verizon Wireless' possession or
             control.

     1.12.4  CTS Facilities. CTS shall maintain CTS Facilities in compliance
             with the Infrastructure and Environmental Requirements at all times
             during the term of this

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             Agreement. If, upon inspection, Verizon Wireless determines that
             the Infrastructure and Environmental Requirements are not met,
             Verizon Wireless will promptly notify CTS, and CTS shall cure the
             Infrastructure and Environmental Requirements defects within three
             (3) business days of receipt of Verizon Wireless' notice.

1.13 INFRINGEMENT.

     1.13.1  The following terms apply to any infringement, suit for or claim or
             allegation of infringement of any patent, trademark, copyright,
             trade secret or other proprietary interest (collectively referred
             to as "IP Claim") based on the manufacture, use, sale, or
             importation into the United States of any material, equipment,
             product, program or service ("Product or Service") furnished to
             Verizon Wireless under or in contemplation of this Agreement. CTS
             shall indemnify and hold harmless Verizon Wireless and any of its
             affiliates, customers, officers, directors, employees, assigns and
             successors for any loss, damage, expense, cost (including, but not
             limited to, any attorney's fees incurred in the enforcement of this
             indemnity) or liability that may result by reason of any such IP
             Claim, and CTS shall defend or settle, at its own expense, any such
             IP Claim against Verizon Wireless.

     1.13.2  Verizon Wireless shall provide CTS with prompt written notice of
             any IP Claim that identifies a Product or Service provided to
             Verizon Wireless hereunder and tender to CTS sole control of any
             such action or settlement negotiations to the extent covered by the
             indemnification provided herein. CTS shall keep Verizon Wireless
             advised of the status of any such IP Claim and of its defense
             and/or negotiation efforts and shall afford Verizon Wireless
             reasonable opportunity to review and comment on significant actions
             planned to be taken by CTS on behalf of Verizon Wireless. If any
             such IP Claim involves other vendors of Verizon Wireless, CTS shall
             cooperate as reasonably necessary to effectively defend Verizon
             Wireless. Verizon Wireless shall, at CTS's expense, reasonably
             cooperate with CTS in the defense of Verizon Wireless. The omission
             of Verizon Wireless to provide notice to CTS of any such action
             shall not relieve CTS from any liability in respect of such action
             which it may have to Verizon Wireless on account of the indemnity
             agreement contained in this Section 1.13, except to the extent CTS
             may have been prejudiced by the failure to give notice.


     1.13.3  If the use, manufacture, sale, or importation in the United States
             of any Product or Service furnished hereunder becomes subject to an
             IP Claim, CTS shall, at Verizon Wireless' option and at no expense
             to Verizon Wireless, (i) by license or other release from claim of
             infringement obtain for Verizon Wireless and Verizon Wireless'
             customers the right to make, use, sell and/or import into the
             United States the Product or Service, as appropriate; or (ii)
             substitute an equivalent non-infringing Product or Service
             reasonably acceptable to Verizon Wireless, which meets the
             specifications for the Product or Service, and extend this
             indemnity thereto; or (iii) modify such Product or Service to make
             it non-infringing but continue to meet the specifications
             therefore, and extend this indemnity thereto; or (iv) accept the
             return of the Product or Service and reimburse Verizon Wireless the
             purchase price therefore, less a reasonable charge for reasonable
             wear and tear, and release Verizon Wireless from all future
             payments under this Agreement.

1.14 PLANT RULES AND SECURITY REQUIREMENTS.

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             CTS and all Consultants shall, while on Verizon Wireless' premises,
             comply with all plant rules and regulations in effect at such
             premises, including security requirements. CTS's rights of entry
             shall be subject to applicable governmental security laws.

1.15 USE AND OWNERSHIP OF INFORMATION.

     1.15.1  CTS shall execute the "Non-Disclosure Agreement" in the form
             appended hereto as Exhibit D. All employees and consultants shall
             be provided a copy of the executed "Non-Disclosure Agreement" and
             shall execute an "Acknowledgment" in the form attached to the
             "Non-Disclosure Agreement" as Attachment A of Exhibit D.

     1.15.2  While CTS and/or its Consultants are engaged in the performance of
             services hereunder, inventions may be made or conceived of for the
             first time reduced to practice by said Consultants, either solely
             or jointly with others, in the course of, or as a result of, such
             performance of services. In consideration of the payment by Verizon
             Wireless to CTS of the amounts specified for the performance of
             services hereunder, CTS hereby does assign and will assign to
             Verizon Wireless all right, title and interest in and to such
             inventions, discoveries and improvements, and any patents,
             copyrights or other forms of legal protection that may be granted
             thereon in any country. CTS further agrees, without charge to
             Verizon Wireless, but at Verizon Wireless' expense, to execute,
             acknowledge and deliver all such papers as may be necessary to
             obtain patents for such inventions in any and all countries of the
             world and to vest title thereto in Verizon Wireless, its successors
             and assigns. CTS shall have and acquire from its Consultants such
             assignments and rights as to assure that Verizon Wireless shall
             receive all of the rights provided for in this Agreement. CTS shall
             provide a copy of all documents to show that all Work and
             intellectual property developed by it and its Consultants have been
             transferred to CTS.

1.16 PUBLICITY.

     CTS shall not issue or release for publication any articles or advertising
     or publicity matter relating to the work performed hereunder or mentioning
     or implying the name of Verizon Wireless or any of its partners, affiliates
     or personnel, unless prior written consent is granted by Verizon Wireless.

     Either party may make public announcements concerning the terms of this
     Agreement or the existence of this Agreement without such express written
     consent of the other party if: (i) the announcement is necessary for such
     party to comply with the requirements of the United States Securities and
     Exchange Commission, any other governmental agency, any court of competent
     jurisdiction, or applicable law or regulation; or (ii) the subject matter
     of such announcement had been previously disclosed in accordance with the
     requirements of this subsection.

1.17 GOVERNING LAW.

     This Agreement shall be governed by the laws of the State of New York
     without reference to its provisions on conflict of laws.

1.18 LITIGATION EXPENSES.

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     In any controversy, claim or dispute arising out of, or relating to, this
     Agreement or the method and manner of performance thereof or the breach
     thereof, the prevailing party may be entitled to recover from the other
     party, in addition to any other relief, all of its reasonable costs and
     expenses, including without limitation reasonable attorneys' fees, incurred
     in connection with such controversy, claim, or dispute. If neither party
     wholly prevails, the party that substantially prevails may be awarded all
     of its reasonable costs and expenses, including without limitation
     reasonable attorneys' fees, incurred in connection with such controversy,
     claim, or dispute.

1.19 ASSIGNMENT.

     Any assignment of this Agreement, in whole or in part, or any other
     interest hereunder without Verizon Wireless' written consent, except an
     assignment confined solely to monies due or to become due, shall be void.
     It is expressly agreed that any such assignment of monies shall be void to
     the extent that it attempts to impose upon Verizon Wireless obligations to
     the assignee additional to the payment of such monies, or to preclude
     Verizon Wireless from dealing solely and directly with CTS in all matters
     pertaining hereto, including the negotiation of amendments or settlements
     of amounts due. It is further agreed that Verizon Wireless, upon written
     notice to CTS, may assign this Agreement, in whole or in part, or any of it
     rights, duties and obligations under this Agreement to its parent, an
     affiliate or affiliates of Verizon Wireless or to a partnership or
     partnerships in which Verizon Wireless or an affiliate has an interest.

     This Agreement shall inure to the benefit of, and shall be binding upon the
     parties hereto and their respective successors and permitted assigns.

1.20 WAIVER.

     No provision of this Agreement shall be deemed waived, amended, or modified
     by either party, unless such waiver, amendment or modification be in
     writing and signed by the party against whom it is sought to enforce the
     waiver, amendment or modification.

1.21 AUDIT.

     CTS shall maintain complete records of all costs payable by Verizon
     Wireless under the terms of this Agreement for three (3) years after
     termination of Agreement. Such records shall specifically include, but are
     not limited to, timesheets. All such records shall be maintained in
     accordance with recognized accounting practices. Verizon Wireless shall
     have the right, through its authorized representatives, to examine and
     audit such records at all reasonable times. The correctness of CTS's
     billing shall be determined by such audits.

1.22 SUBCONTRACTING.

     CTS shall not, without the prior written consent of Verizon Wireless,
     subcontract any portion of the work covered by this Agreement. Any
     subcontractor consented to must agree to all the terms and condition of
     this Agreement and CTS shall be liable for the conduct of such
     subcontractor to the same extent as CTS's liability under this Agreement.

1.23 ARTICLE HEADINGS.

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     The headings of the several Articles are inserted for convenience of
     reference only and are not intended to be a part of or to affect the
     meaning or interpretation of this Agreement.

1.24 SEVERABILITY.

     If any provision, or portion thereof of this Agreement is invalid under
     applicable statute or rule of law, it is only to that extent to be deemed
     omitted, and such unenforceability shall not affect any other provision of
     this Agreement, but this Agreement shall then be construed as if such
     unenforceable provision or provisions had never been contained herein.

1.25 WARRANTIES.

     1.25.1  CTS represents and warrants to Verizon Wireless and its assigns
             that all services performed under this Agreement shall be performed
             in a professional and workmanlike manner, free from material faults
             and defects and in conformity with the reasonable trade practices
             in the industry. This warranty shall be in addition to, and not in
             limitation of, any other warranty or remedy provided by law.

     1.25.2  CTS represents and warrants that no portion of the material
             prepared for Verizon Wireless or services rendered to Verizon
             Wireless under this Agreement is derived from or includes any
             copyrighted or similarly protected material, other than such
             material as CTS has provided a license or other evidence from such
             owner of the ability to do so.

     1.25.3  CTS represents and warrants to Verizon Wireless, to the best of its
             knowledge and belief, that any software provided to Verizon
             Wireless by CTS does not contain or will not contain any Self-Help
             Code nor any Unauthorized Code (defined below).

     1.25.4  As used in this Agreement, "Self-Help Code" means any back door,
             "time bomb", drop dead device, or other software routine designed
             to disable a computer program automatically with the passage of
             time or under the positive control of a person other than a
             licensee of the program. Self-Help Code does not include software
             routines in a computer program, if any, designed to permit the
             licensor of the computer program (or other person acting by
             authority of the licensor) to obtain access to a licensee's
             computer system(s) (e.g., remote access via modem) for purposes of
             maintenance or technical support.

     1.25.5  As used in this Agreement, "Unauthorized Code" means any virus,
             Trojan horse, worm, or any other software routines or hardware
             components designed to permit unauthorized access to disable,
             erase, or otherwise harm software, hardware, or data or to perform
             any other such actions. The term Unauthorized Code does not include
             Self-Help Code.

     1.25.6  CTS shall remove promptly any such Self-Help Code or Unauthorized
             Code in the software of which it is notified or may discover.

     1.25.7  In addition to the warranties stated above, CTS agrees to provide
             the following warranties:

             a. Roaming Service Warranty.

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                CTS warrants that any service outage of the CTS Network will not
                exceed twenty-four (24) hours in duration for so long as Verizon
                Wireless has a Connected System, provided that CTS shall have no
                liability under this section to the extent that the service
                outage or any delay in CTS meeting its obligations under this
                section is due, in whole or part, to any cause beyond CTS's
                reasonable control or any cause that is not attributable to the
                CTS Network. If CTS breaches the foregoing warranty, then, as
                Verizon Wireless' exclusive remedy for such breach, CTS shall
                provide Verizon Wireless with a credit equal to $450.00 per
                24-hour period for each additional 24-hour period that the
                service outage continues after the initial 24 hours of the
                service outage.

             b. Intellectual Property Rights.

                CTS hereby warrants to Verizon Wireless that, subject to the
                provisions of Section 4.1 below, each Licensed Program (not
                including any Third-Party Software), if used by Verizon Wireless
                in accordance with the terms of this Agreement, is free of any
                valid claim by a Third Party that such Licensed Program (not
                including any Third-Party Software) infringes an existing United
                States Intellectual Property Right of such Third Party. Verizon
                Wireless' exclusive remedy for breach of the warranty set forth
                in this Section 1.25.7(b), is set forth in Section 1.26, below.

             c. Software Performance.

                For each System, CTS hereby warrants to Verizon Wireless that
                the Licensed Programs (not including any Third-Party Software),
                when used in conjunction with the Hardware necessary for
                operation of such System and with Verizon Wireless' cellular
                network operating in a normal manner, and when all relevant
                Infrastructure and Environmental Requirements are satisfied,
                will materially perform in accordance with their Specifications
                for so long as the Support Services Agreement is in full force
                and effect. Verizon Wireless' exclusive remedy for breach of
                such warranty shall be correction by CTS, at no additional
                charge to Verizon Wireless, of any errors or malfunctions in
                such Licensed Programs found not to be in compliance with such
                warranty, in accordance with the terms of the Support Services
                Agreement; provided, that CTS shall have no obligation to make
                such corrections if Verizon Wireless is in breach or default
                under this Agreement and is notified, in writing, of such breach
                or default, or if Verizon Wireless fails to notify CTS in
                writing within a reasonable time of discovery of such errors or
                malfunctions. If a correction of an error or malfunction is
                commercially impractical, CTS may provide Verizon Wireless with
                a commercially reasonable circumvention of such error or
                malfunction. For Third-Party Software supplied by CTS, CTS will
                pass through to Verizon Wireless the warranties that CTS
                receives from its vendor for such Third-Party Software, to the
                extent that such vendor will honor such warranties.

             d. Emergency 911 Calls.

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                For each System, CTS hereby warrants to Verizon Wireless that
                the CTS-proprietary Licensed Programs, when used in conjunction
                with the Hardware necessary for operation of such System and
                with Verizon Wireless' cellular network operating in a normal
                manner, and when all relevant Infrastructure and Environmental
                Requirements are satisfied, will not interdict "911" or "*911"
                call destinations initiated within Verizon Wireless' cellular
                network; provided, that CTS shall have no liability under this
                Section 1.25.7(d) if: (i) the System, at Verizon Wireless'
                request, is configured to potentially interdict such call
                destinations; or (ii) the System's failure to perform as
                required hereunder is due to any cause or condition beyond CTS's
                reasonable control.

     1.25.8  Limitation of Warranty.

             EXCEPT AS EXPRESSLY SET FORTH IN THIS SECTION 1.25.8, CTS MAKES NO
             REPRESENTATIONS, WARRANTIES, OR GUARANTIES OF ANY KIND, EITHER
             EXPRESS OR IMPLIED, ORAL OR WRITTEN, WITH RESPECT TO THE SUPPORT
             SERVICES OR TO ANY SYSTEM, HARDWARE, LICENSED PROGRAMS,
             DOCUMENTATION, OR ANY OTHER ITEMS OR SERVICES COVERED BY OR
             FURNISHED UNDER THIS AGREEMENT, INCLUDING WITHOUT LIMITATION ANY
             IMPLIED WARRANTY (I) OF MERCHANTABILITY, (II) OF FITNESS FOR A
             PARTICULAR PURPOSE, OR (III) ARISING FROM COURSE OF PERFORMANCE,
             COURSE OF DEALING, OR USAGE OF TRADE.

     1.25.9  Limitation of Liability

             Except for indemnification obligations for third-party claims or
             infringement claims made by either party to this agreement, neither
             party shall be responsible or held liable to the other, its
             employees, subcontractors and/or agents, or any third party, for
             any indirect, incidental, special, consequential or punitive
             damages or lost profits for any Claim or demand of any nature or
             kind, arising out of or in connection with this Contract or the
             performance or breach thereof. Notwithstanding anything that may
             appear to the contrary herein, and except for indemnification
             obligations for third-party claims or infringement claims made by
             either Party, in no event shall either Party be liable in the
             aggregate for more than the amount actually invoiced/received under
             this Agreement.

1.26 INDEMNIFICATION.

     1.26.1  CTS shall defend, indemnify and hold harmless Verizon Wireless, its
             parents, subsidiaries and affiliates, and its and their respective
             directors, officers, partners, employees, agents, successors and
             assigns ("Indemnified Parties") from any claims, demands, lawsuits,
             damages, liabilities, judgments and settlements of every kind
             ("Claims") that may be made in connection with CTS's obligations
             under this Agreement: (a) by anyone for injuries (including death)
             to persons or damage to property, including theft, resulting from
             the acts or omissions of CTS or those persons furnished by CTS,
             including its subcontractors (if any); or (b) by persons furnished
             by CTS and its subcontractors (if any) under Worker's Compensation
             or similar acts. The foregoing indemnification shall apply whether
             CTS or an

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             Indemnified Party defends such Claim and whether the
             Claim arises or is alleged to arise out of the acts or omissions of
             the CTS (and/or any subcontractor of CTS) or out of the concurrent
             acts or omissions of CTS (and/or any subcontractor of CTS) whether
             negligent or otherwise.

     1.26.2  CTS shall defend Verizon Wireless at Verizon Wireless' request,
             against any such liability, claim or demand. The foregoing
             indemnification shall apply whether CTS or Verizon Wireless defends
             such suit or claim and whether the death, injury or property damage
             is caused by the sole acts or omissions of CTS or by the concurrent
             acts or omissions of Verizon Wireless or CTS hereunder. Verizon
             Wireless agrees to notify CTS promptly of any written claim or
             demands against Verizon Wireless for which CTS is responsible
             hereunder. CTS shall have the right to defend any such claim with
             counsel reasonably acceptable to Verizon Wireless.

     1.26.3  The supplied software, hardware and related services provided
             hereunder (i) shall perform on and after January 1, 2000 in as good
             a manner as before such date, and (ii) shall at all times manage,
             manipulate and report data involving dates (including the year
             2000, dates before and after the year 2000, and single-century and
             multi-century formulas) without generating incorrect values or
             dates or causing an abnormally-ending scenario within an
             application. CTS shall indemnify Verizon Wireless and Verizon
             Wireless' customers for any loss, cost, or damages sustained
             because of CTS's Year 2000 noncompliance.

1.27 FORCE MAJEURE.

     In no event shall either party have any liability for any failure to comply
     with this Agreement, if such failure results from the occurrence of any
     contingency beyond the reasonable control of the party, including without
     limitation, strike or other labor disturbance, riot, theft, flood, fire,
     lightning, storm, any act of God, power failure, war, national emergency,
     interference by any government or governmental agency, embargo, seizure, or
     enactment of any law, statute, ordinance, rule or regulation.

1.28 BUSINESS CONDUCT.

     Both Parties shall take all reasonable measures necessary to ensure that
     the other and/or its Consultant(s) shall conduct themselves in accordance
     with the highest standards of honesty, integrity and fair dealing
     including, but not limited to, compliance with any ethical codes
     promulgated by Verizon Wireless and applicable to parties providing
     consulting services.

1.29 NO WAIVER, CUMULATIVE REMEDIES

     No consent or waiver, express or implied, by any party to or of any breach
     or default by the other in the performance by the other of its obligations
     hereunder shall be deemed or construed to be a consent or waiver to or of
     any other breach or default in the performance by such other party of the
     same or any other obligations of such party hereunder. Except where
     contrary to the express terms herein, the rights and remedies herein are
     cumulative to those that exist at law or in equity and there shall be no
     implied waiver of such rights and remedies.

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                          ARTICLE II. SUPPORT SERVICES

2.1 SCOPE OF COVERAGE.

     2.1.1   Support Services Options.

             a. Base Support Services. CTS hereby offers the following support
                services (collectively, the "Base Support Services") to Verizon
                Wireless for the Supported Products of each System, subject to
                the terms and conditions set forth in this Agreement:

                i.   Technical Support Services: CTS will provide the technical
                     support services described in Section 2.2 below.

                ii.  Software Subscription Services: CTS will provide software
                     subscription services for New Releases of the Licensed
                     Programs supported under this Agreement, as more fully
                     described in Section 2.3 below.

                iii. Cell Site Hardware Maintenance: CTS will provide on-site
                     maintenance of Cell Site Hardware as more fully described
                     in Section 2.4 below.

             b. Blackbird Platform Monitoring Services. CTS hereby offers its
                Blackbird Platform Monitoring Services described in Section 2.5
                below (the "Blackbird Platform Monitoring Services"), subject to
                the terms and conditions set forth in this Agreement.

             c. Backup & Restore Support Services. CTS hereby offers support
                services for its Backup & Restore product as described in
                Section 2.6 below (the "Backup & Restore Support Services"),
                subject to the terms and conditions set forth in this Agreement.

     2.1.2   Selection by Verizon Wireless.

             Verizon Wireless shall select the desired support services as
             indicated in Exhibit A for each System from the available support
             services specified in Section 2.1.1, above, and which are more
             fully described elsewhere in this Agreement (collectively, the
             "Support Services"). Verizon Wireless' selections for each market
             shall be reflected on Exhibit A hereto, and may be modified by the
             mutual written agreement of CTS and Verizon Wireless. Services
             requested that are not specifically included in Exhibit A will be
             agreed in advance by the parties and charged as set forth in
             Section 1.5.4(b), above.

     2.2     TECHNICAL SUPPORT SERVICES.

             For each System for which such services were selected on Exhibit A,
             CTS will perform the Support Services described in this Section 2.2
             with respect to the Supported Products for such System.

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     2.2.1   CTS Technical Support Hotline.

             a. General. CTS will maintain a technical support hotline to
                respond to all technical problems with respect to the System.
                The current technical support hotline number is (206) 727-6353,
                and is subject to change with notice to Verizon Wireless.
                Automatic call distribution will route calls to an available CTS
                technical analyst. If a technical analyst is not available, the
                caller will be either routed to a voice mailbox, or asked to
                hold via a wait queue. Depositing a message in the voice mailbox
                activates an internal paging system, and the next available
                technical analyst will promptly return the call during the
                applicable hours of coverage. Except as otherwise provided under
                Section 2.7.2 below, CTS technical analysts will be able to
                access to the System via a 56 Kbps connection, and will be able
                to query the System while a Support Contact is on line. If CTS
                determines at any time that any CTS on-site technical support is
                necessary due to the nature of a particular condition or
                recurring similar conditions, then CTS will make available such
                personnel as CTS deems appropriate to respond to the condition,
                so long as Verizon Wireless provides CTS with adequate
                facilities for such personnel as required by Section 2.7.4
                below. Support services include CTS standard automated daily
                reports; disc space allocation and maintenance; VDD, NPA/NXX,
                gold list updates and fingerprint database reconciliations based
                on files sent from Verizon Wireless to CTS in the specified
                formats; event log maintenance; DCC and Control Channel updates
                at the RPC as requested by the Verizon Wireless; and Sybase
                upgrades. Support services also include renaming cell sites
                performed one day during each quarter of 2001 in a bundled
                fashion up to 25 sites each quarter. Verizon Wireless will
                provide CTS with the complete rename information one week in
                advance of the day the renames are to be performed. Requests for
                renaming sites on additional dates or in excess of 25 per
                quarter will be charged in accordance with Section 1.5.4(b).

             b. Commencement of Support. CTS's responsibility to address
                conditions that affect the System will commence upon CTS's
                receipt of a telephone call from a Support Contact (via the
                technical support hotline) identifying the condition to CTS. The
                CTS technical analyst responding to the call will perform the
                following during the applicable hours of coverage: (i) identify
                the condition; and (ii) assess whether the condition is a
                Priority 1 Incident, Priority 2 Incident, or Priority 3
                Incident. Once the above factors are identified, CTS will
                respond to and resolve the condition as described in Section
                2.2.2 below.

             c. Hours of Coverage. CTS technical analysts will be available
                during Normal Business Hours to provide the technical support
                described in this Section 2.2.

     2.2.2   Response and Resolution Procedures.

             a. CTS's response and resolution procedures for conditions that
                affect the System are determined by the severity of the
                condition (i.e., Priority 1 Incident, Priority 2 Incident, and
                Priority 3 Incident), as described in this Section 2.2.2.
                Response to a condition will involve an initial period for
                identification of the source of the problem, which may require
                Verizon

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                Wireless' assistance, including, without limitation,
                assistance with inspecting the condition of Hardware,
                cooperative troubleshooting with respect to network
                connectivity, and providing sufficient examples of any anomalies
                reported with System data or functioning.

             b. Priority 1 Incident. If CTS determines that a Priority 1
                Incident has occurred, CTS will begin working to identify the
                source of the problem within one (1) normal business hour after
                commencement of CTS support (as described in Section 2.2.1(b))
                for the Priority 1 Incident and will continue to work on
                identifying the source of the problem during Normal Business
                Hours until the problem is identified. If the problem is
                identified as a problem with any Supported Product, CTS will
                work to correct the problem as follows:

                i.   Problem identified with Licensed Programs: CTS will work to
                     correct the problem during Normal Business Hours until (i)
                     a reasonably satisfactory correction is achieved or (ii)
                     CTS determines that a correction is commercially
                     impractical, in which case CTS will then work to provide
                     Verizon Wireless with a commercially reasonable
                     circumvention of the problem.

                ii.  Problem identified with Hardware: CTS's responsibilities
                     for correcting Hardware problems will be determined by the
                     type of Hardware and Verizon Wireless' selection of
                     hardware maintenance.

                If a Priority 1 Incident, (a) occurs in Los Angeles, San
                Francisco, Sacramento or Atlanta, or (b) occurs in any two
                markets simultaneously, then CTS shall have ten (10) business
                days from the time it is notified to resolve such Priority 1
                Incident. Otherwise, CTS will be deemed to have materially
                breached this Agreement. , CTS shall have no liability under
                this Section to the extent that (a) the condition or any delay
                in CTS meeting its obligations under this Section is due in
                whole or in part, to any cause beyond CTS's reasonable control
                or cause that is not attributable to any System, or (b) the
                condition pertains to the CTS-Certified Hardware described in
                Section 2.4.2(d), below. In the event such cause is out of CTS's
                reasonable control, CTS shall provide Verizon Wireless written
                notice of such cause and shall seek Verizon Wireless
                approval/waiver of this provision, such approval will not be
                unreasonably withheld by Verizon Wireless.

             c. Priority 2 Incident. If CTS determines that a Priority 2
                Incident has occurred, CTS will begin working to identify the
                source of the problem within nine (9) normal business hours
                after commencement of CTS support (as described in Section
                2.2.1.(b)) for the Priority 2 Incident and will continue to work
                on identifying the source of the problem during CTS's Normal
                Business Hours until the problem is identified. If the problem
                is identified as a problem with any Supported Product, CTS will
                work to correct the problem as set forth in Section 2.2.2(b)
                above.

             d. Priority 3 Incident. If CTS determines that a Priority 3
                Incident has occurred, CTS will begin working to identify the
                source of the problem within ten normal business days during
                CTS's Normal Business Hours. If the problem

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Verizon Wireless/CTS Agreement    CONFIDENTIAL









                is identified as a problem with any Supported Products, CTS will
                work to correct the problem as set forth in Section 2.2.2(b)
                above.

     2.2.3   Maintenance Releases.

             CTS may provide Maintenance Releases to Verizon Wireless for such
             System at no additional charge, so long as Verizon Wireless is not
             in default of its payment obligations hereunder. Maintenance
             Releases, if provided, will be delivered to each site, either via
             tape, diskette media, or network connection, as determined by CTS
             in consultation with Verizon Wireless.

     2.2.4   Changes in Condition.

             If the severity of a condition requiring Support Services hereunder
             changes (e.g., a Priority 2 Incident becomes a Priority 1 Incident
             due to a change in relevant circumstances), then the timeframes
             governing CTS's response and resolution of the problem will be
             modified accordingly to comport with the timeframes for the new
             level of priority as outlined in Section 2.2.2 above. The
             applicable new timeframes will be measured from the time at which
             CTS receives notification of the change in condition.

2.3 SOFTWARE SUBSCRIPTION SERVICES.

     CTS will provide New Releases to Verizon Wireless for such System at no
     additional charge, so long as Verizon Wireless is not in default of its
     payment obligations hereunder. New Releases, if provided, will be delivered
     to each site, either via tape, diskette media, or network connection, as
     determined by CTS in consultation with Verizon Wireless. If Verizon
     Wireless does not pay CTS the Aggregate Fee as set forth in Section 1.5.3,
     above, then CTS, in its discretion, may provide New Releases for such
     System to Verizon Wireless on such terms and conditions and for such fees
     as the parties may mutually agree to in writing.

2.4 CELL SITE HARDWARE MAINTENANCE.

     2.4.1   CTS On-Site Maintenance.

             a. Maintenance. For those markets shown on Exhibit A in which
                Verizon Wireless has selected CTS On-Site Maintenance, CTS will
                perform the Support Services described in this Section 2.4.1
                with respect to the Cell Site Hardware for a System. CTS's
                responsibilities for such Support Services are determined by the
                severity of the condition that affects the System (i.e.,
                Priority 1 Incident, Priority 2 Incident and Priority 3
                Incident). CTS will staff the on-site maintenance from Seattle
                and will schedule trips in advance to service the selected
                Systems with adequate frequency to provide repairs on a timely
                basis while keeping costs as low as possible. CTS and Verizon
                Wireless agree that the frequency and level of on-site service
                provided during the calendar year 2000 under the agreements with
                the Prior Companies has been satisfactory and is expected to be
                maintained during the term of this Agreement.

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             b. Repair and Replacement Procedures. Arrangements for the repair
                or replacement of Cell Site Hardware will be arranged and
                scheduled through the CTS technical support hotline. CTS will
                determine in its discretion whether Cell Site Hardware requires
                repair or replacement. All Systems will have replacement parts
                (RMA parts) for Cell Site Hardware components supplied by CTS at
                no charge. Replacements for Cell Site Hardware components will
                be new or serviceable used parts equivalent to new in
                performance. Replacement parts will be shipped via air carrier
                to the relevant site, and all costs of shipping Cell Site
                Hardware components to and from Verizon Wireless and risk of
                loss during each shipment will be the responsibility of CTS.
                Verizon Wireless shall return the replaced parts in the shipping
                materials used by CTS within fifteen (15) business days of
                receipt of the replacement parts.

    2.4.2    CTS Support for Verizon Wireless On-Site Maintenance.

             a. General. Verizon Wireless On-Site Maintenance is selected by
                Verizon Wireless for a System in which CTS On-Site Maintenance
                is not selected on Exhibit A, and the following provisions shall
                apply: (i) Verizon Wireless will be responsible for the repair
                or replacement of affected Cell Site Hardware components
                according to the procedure set forth below; and (ii) CTS will be
                responsible for providing maintenance Documentation and
                telephone technical assistance, as described below.

             b. Telephone Technical Assistance. During the applicable hours of
                coverage, CTS will provide technical assistance for Verizon
                Wireless On-Site Maintenance through the CTS technical support
                hotline. Arrangements for such technical assistance will be
                arranged and scheduled through the CTS technical support hotline
                at least two (2) business days in advance.

             c. Repair and Replacement Procedures; Spare Parts. Verizon Wireless
                shall perform repair or replacement of affected Cell Site
                Hardware components in full compliance with this Agreement and
                the terms of all maintenance Documentation supplied by CTS. CTS
                will supply spare parts to Verizon Wireless on an as needed
                basis for the direct repair or replacement of Cell Site
                Hardware. CTS will determine in its discretion whether Cell Site
                Hardware requires repair or replacement. Replacements for Cell
                Site Hardware components will be new or serviceable used parts
                equivalent to new in performance. Arrangements for the shipment
                of spare parts will be made through the CTS technical support
                hotline. CTS will use commercially reasonable efforts to process
                the shipment of spare parts on an expedited basis to the
                relevant Verizon Wireless Facility. All components removed from
                Cell Site Hardware shall be shipped by Verizon Wireless via air
                carrier to CTS's facilities in Seattle, Washington, or to other
                facilities designated by CTS, within fifteen (15) business days
                after Verizon Wireless' receipt of the corresponding replacement
                component from CTS, and will become the property of CTS upon
                receipt. In the event that such replaced parts are not returned
                to CTS within 30 days following receipt of the replacement
                parts, CTS shall charge Verizon Wireless for the cost of the
                replacement parts in accordance with its current price list for
                such parts. Such charge may be made pursuant to the blanket
                purchase order referred to in Section 1.5.3(b). CTS

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Verizon Wireless/CTS Agreement    CONFIDENTIAL








                will provide reasonable detailed notice to Verizon Wireless of
                any charges posted against the blanket purchase order. All costs
                of shipping spares, repaired or replacement components, or
                exchanged components from the relevant Verizon Wireless
                Facility, the risk of loss during each shipment, and the proper
                storage of components at Verizon Wireless facilities will be the
                responsibility of Verizon Wireless. All costs of shipping spares
                or repaired or replacement components to the relevant Verizon
                Wireless Facility and the risk of loss during each shipment will
                be the responsibility of CTS.

             d. HP and Cisco Maintenance. For CTS-Certified Hardware. Verizon
                Wireless elects to have CTS renew its existing HP and Cisco
                maintenance contracts for support services with respect to
                Verizon Wireless' CTS-Certified hardware for those markets
                indicated in Exhibit A. CTS will be Verizon Wireless' point of
                contact for all support required in all markets. CTS will then
                coordinate with either Verizon Wireless and/or the third-party
                hardware manufacturer as necessary. Verizon Wireless will pay
                CTS fees for such re-marketed support services. The fees for
                2001 for Cisco are $40,756 and for HP are $137,000. These fees
                are due and payable to CTS January 31, 2001.

2.5 BLACKBIRD PLATFORM MONITORING SERVICES.

     For those markets shown on Exhibit A in which Verizon Wireless has selected
     Blackbird Platform Monitoring Services, then CTS will perform periodic
     remote monitoring of the status and condition of such System during Normal
     Business Hours. Such Blackbird Platform Monitoring Services consist of
     monitoring the status and condition of Supported Products and network
     connections, and include the monitoring of: (i) the functionality of major
     software processes; and (ii) the connectivity among Supported Products and
     between Supported Products and Verizon Wireless' network. If, in the
     performance of Blackbird Platform Monitoring Services, CTS detects a
     condition that negatively affects the System, CTS will respond to and
     resolve such condition in accordance with the applicable support service
     options selected by Verizon Wireless for such System under this Agreement.

2.6 BACKUP & RESTORE SUPPORT SERVICES.

     For those markets shown on Exhibit A in which Verizon Wireless has selected
     Backup & Restore Support Services, then CTS will perform the following
     services:

     2.6.1   CTS-Proprietary Components.

             CTS will perform Base Support Services for the CTS-proprietary
             components of the Backup & Restore product supplied by CTS for such
             System. Such services include the Technical Support Services
             described in Section 2.2 above, but do not include the provision of
             New Releases or CTS On-Site Maintenance for such software. Backup &
             Restore Support Services shall be provided only during Normal
             Business Hours.

    2.6.2    Third-Party Components.

             With respect to the third-party components of the Backup & Restore
             product supplied by CTS for such System, CTS support service will
             be limited to passing

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Verizon Wireless/CTS Agreement    CONFIDENTIAL








             through to Verizon Wireless the support and maintenance terms that
             CTS is allowed to pass through to Verizon Wireless by the
             applicable CTS supplier.

2.7 ADDITIONAL VERIZON WIRELESS RESPONSIBILITIES.

     2.7.1   Support Contacts.

             Verizon Wireless shall designate, and will provide CTS with the
             name, address, and telephone number of at least one (1) primary and
             one (1) back-up support contact for each applicable System
             (collectively, the "Support Contacts"). Such Support Contacts will:
             (a) contact Verizon Wireless' trained in-house technical support
             personnel who will conduct preliminary problem identification/
             troubleshooting for any condition identified by Verizon Wireless
             which affects such System, which includes performing the
             troubleshooting/problem identification procedures set forth in the
             Documentation; and (b) notify CTS (via the CTS technical support
             hotline) within one (1) hour after the detection of any condition
             affecting such System. If Verizon Wireless does not have in-house
             technical support personnel to provide the required preliminary
             problem identification/troubleshooting, then CTS may perform such
             work and Verizon Wireless will pay CTS for same at CTS's
             then-current rates. In addition to the technical support personnel
             described above, Verizon Wireless shall designate and maintain
             technical subject matter experts, to whom technical problems can be
             escalated for resolution. Such experts shall include at least one
             networking engineer, responsible for administration of Verizon
             Wireless' network infrastructure with which the System interfaces.

    2.7.2    WAN Access to System.

             Verizon Wireless will, at its expense, provide CTS with access to
             each System through a 56 Kbps network connection to enable CTS to
             perform its obligations under this Agreement. This network
             connection can be the same network connection required under
             Section 3.3.4 below.

    2.7.3    Verizon Wireless' Network.

             Verizon Wireless acknowledges that data relevant to System
             performance will be transmitted through a portion of Verizon
             Wireless' network. Verizon Wireless will be responsible for
             maintaining and continuously monitoring such portion of its
             network. If, in the performance of such monitoring, Verizon
             Wireless detects any condition that may affect a System, Verizon
             Wireless will promptly notify CTS of such condition and coordinate
             with CTS in the troubleshooting and resolution of such network
             condition.

    2.7.4    Facilities and Supplies; On-Site Representatives.

             Verizon Wireless will provide CTS with such access to Supported
             Products as CTS deems necessary to perform its Support Services
             during the hours of coverage specified in this Agreement. In
             addition, Verizon Wireless will promptly provide at no cost to CTS:
             (i) adequate and safe working facilities which, in the opinion of
             CTS, are necessary or appropriate in connection with the
             performance of this Agreement; (ii) operating supplies and
             consumables at the relevant site; and (iii) electrical work

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Verizon Wireless/CTS Agreement    CONFIDENTIAL








             external to the Supported Products. Upon CTS's written request,
             Verizon Wireless will make available an experienced and properly
             qualified representative of Verizon Wireless at the relevant site
             and at the relevant times during which services are being performed
             by CTS's personnel or subcontractors.

    2.7.5    Data.

             Verizon Wireless is and shall at all times continue to be
             responsible for maintaining a procedure external to each System for
             the back up of files, data, programs, and other information used as
             part of the System, and for the restoration and reconstruction of
             any loss or alteration of such files, data, programs, or
             information. Except as expressly set forth in this Agreement, CTS
             shall have no responsibility or liability for any loss or
             alteration of files, data, programs, or other information used as
             part of a System.

    2.7.6    Relocation.

             Verizon Wireless will not relocate or reinstall any Supported
             Products, unless: (i) CTS is provided with written notice of any
             relocation or reinstallation within a particular site or building
             at least forty-eight (48) hours before such relocation or
             reinstallation; (ii) CTS is provided written notice of any other
             relocation or reinstallation at least fourteen (14) days before
             such relocation or reinstallation; (iii) the Supported Products are
             relocated or reinstalled at a site which is located within any
             "Licensed Market," as such term is defined in the License
             Agreement, and which meets all of the Infrastructure and
             Environmental Requirements; and (iv) the Supported Products are
             installed at such site by CTS or a CTS-certified installer. Only
             Supported Products which are relocated or reinstalled at another
             site in accordance with this subsection will continue to be
             serviced under this Agreement and continue to be subject to any
             applicable warranties provided for such Supported Products under
             the License Agreement. Verizon Wireless will be responsible for all
             fees, costs, expenses, and damages incurred in connection with any
             relocation of Supported Products, except that Verizon Wireless will
             not be responsible for CTS's costs or expenses in connection
             therewith if the relocation is necessary due to the fault of CTS.

    2.7.7    Causes Beyond CTS's Control.

             Verizon Wireless will be responsible for any support services
             required due to any of the following: (i) improper use or neglect;
             (ii) support or use of the Licensed Programs or Hardware in a
             manner contrary to that specified in this Agreement, or
             Documentation provided by CTS; (iii) work performed by personnel
             other than CTS personnel or subcontractors or other persons
             certified by CTS to perform such work pursuant to the appropriate
             CTS training program; (iv) site conditions that do not conform to
             the Infrastructure and Environmental Requirements; or (v) any other
             cause beyond CTS's control. If support or maintenance of any
             Supported Product is required to return it to eligibility for
             coverage under this Agreement, CTS will offer to perform such
             maintenance on a time and materials basis at its then-current rates
             prior to placing the Supported Product under this Agreement.

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                    ARTICLE III. ROAMING PROTECTION SERVICES

3.1 THE SERVICE.

     3.1.1   Commencement of Service.

             Verizon Wireless hereby agrees to retain CTS to perform the
             Service, as defined herein, and CTS hereby agrees to perform such
             Service for Verizon Wireless, subject to payment of the Aggregate
             Fee and other terms and conditions set forth in this Agreement. CTS
             and Verizon Wireless will agree on the commencement of Service for
             a given System pursuant to the selections made on Exhibit A to the
             Services Agreement. "Service" shall be defined as the transmission
             of Call Data through the CTS Network for subscribers roaming in
             other CTS Blackbird markets: (i) between Connected Systems, or (ii)
             between a Connected System and another system within the United
             States connected to the CTS Network with CTS's written approval.

     3.1.2   License Regarding Non-Verizon Wireless Call Data.

             Subject to the terms of this Agreement, CTS hereby: (i) grants to
             Verizon Wireless a non-exclusive, non-transferable right and
             license (the "License") to use the portion of Call Data owned by
             other Service Users or CTS solely for the purpose of detecting and
             preventing cellular roaming cloning fraud by operation of each
             Connected System; and (ii) agrees to provide such Call Data to
             Verizon Wireless for such limited purpose. Such License and
             agreement to provide Call Data shall be effective with respect to a
             Connected System for so long as CTS provides Service for such
             System during the term of this Agreement. The License sets forth
             the entirety of Verizon Wireless' rights in connection with the
             portion of Call Data owned by other Service Users or CTS.
             Accordingly, Verizon Wireless shall not use, or permit any Third
             Party to use or have access to, such Call Data for any purpose
             other than as expressly set forth in this section, without the
             express prior written approval of CTS.

     3.1.3   License Regarding Verizon Wireless Call Data.

             Verizon Wireless hereby: (i) grants to CTS and each Service User a
             non-exclusive, non-transferable, and royalty-free right and license
             to use the portion of Call Data owned by Verizon Wireless solely
             for the purpose of detecting and preventing cellular roaming
             cloning fraud by operation of one or more systems comprised of the
             CTS Blackbird(R) Platform and PreTect(TM) fraud prevention
             application; and (ii) agrees to provide such Call Data to CTS and
             each Service User for such limited purpose. Such license and
             agreement to provide Call Data shall be effective with respect to
             Call Data transmitted from a Connected System to the CTS Network
             for so long as CTS provides Service for such System during the term
             of this Agreement. Such license sets forth the entirety of CTS's
             rights in connection with the portion of Call Data owned by Verizon
             Wireless (which portion shall expressly exclude the CTS-proprietary
             information described in Section 1.1.3(ii), above). Accordingly,
             CTS shall not use, or permit any third party to use or have access
             to, the portion of Call Data owned by Verizon Wireless for any
             purpose other than as expressly set forth in this subsection,
             without the express prior written approval of Verizon Wireless.

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3.2 MAINTENANCE OF CTS NETWORK.

     CTS shall be responsible for maintaining all aspects of the CTS Network,
     including all components of the CTS Network located at Verizon Wireless
     Facilities (but not including maintaining the site conditions required
     under the Infrastructure and Environmental Requirements, which is the
     responsibility of Verizon Wireless). CTS shall have the exclusive right, in
     its discretion, to inspect, service, repair, replace, modify, or enhance
     any aspect of the CTS Network at any time during the term of this
     Agreement, subject to the provisions of Section 3.3 below. CTS reserves the
     right to suspend Service for a planned service outage caused by scheduled
     maintenance or planned enhancements or modifications to the CTS Network;
     provided, that if necessary, at Verizon Wireless' request, such planned
     service outage shall occur outside Verizon Wireless' high volume service
     hours. CTS will notify Verizon Wireless of a planned service outage in
     advance. Support for the Service will be provided during Normal Business
     Hours.

3.3 ADDITIONAL VERIZON WIRELESS RESPONSIBILITIES.

     3.3.1   Access.

             Verizon Wireless shall at all times cooperate with CTS and provide
             CTS with such access to Verizon Wireless Facilities as CTS
             reasonably requires for the purpose of installation, inspection,
             maintenance, service, repair, replacement, modification,
             enhancement, relocation, and/or removal of any or all components of
             the CTS Network located at Verizon Wireless Facilities and for the
             purpose of performing any other actions contemplated by this
             Agreement; provided, that if necessary, at Verizon Wireless'
             request, such access shall occur outside Verizon Wireless' high
             volume service hours.

     3.3.2   Prohibited Actions.

             Verizon Wireless shall not, internally or in conjunction with any
             other person or entity, and shall not permit or assist any person
             or entity to, do or attempt to do any of the following without the
             express prior written approval of CTS: (i) remove, obscure,
             conceal, or alter any notices or legends appearing in or on any
             component of the CTS Network indicating CTS's ownership of such
             component; (ii) tamper with, modify, alter, repair, replace,
             relocate, disconnect, connect anything to, or remove any component
             of the CTS Network; (iii) obtain access to or modify, alter, or
             destroy any Call Data of any other Service User, by or through any
             means or devices whatsoever, for any reason whatsoever; or (iv) use
             any other means or devices to circumvent the purposes of this
             Agreement or to obtain Service with the intent to avoid payment, in
             whole or in part, of additional applicable fees for the Service and
             the License. Verizon Wireless shall promptly notify CTS in writing
             of any facts of which Verizon Wireless is aware which might
             constitute a violation of this subsection.

     3.3.3   Relocation.

             If CTS approves any relocation of components of the CTS Network, as
             required by Section 3.2 above, then such relocation shall be
             conducted by CTS, except as the parties otherwise agree to in
             writing. The site at which such components are

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             relocated shall be within the same Licensed Market and shall meet
             all of the Infrastructure and Environmental Requirements. Verizon
             Wireless shall be responsible for all fees, costs, expenses, and
             damages incurred in connection with any relocation of components of
             the CTS Network performed at Verizon Wireless' request.

     3.3.4   WAN Access.

             Verizon Wireless will, at its expense, provide CTS with access to
             each Connected System through a 56 Kbps network connection to
             enable CTS to perform its obligations under this Agreement. This
             network connection can be the same network connection required
             under Section 2.7.2 above.

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                          ARTICLE IV. SOFTWARE LICENSE

4.1. LICENSE OF SOFTWARE.

     4.1.1   Grant of License.

             Subject to the terms of this Agreement, CTS hereby grants to
             Verizon Wireless a non-exclusive, non-transferable license (the
             "License") to use the Licensed Programs and Documentation for the
             purpose of operating a System for its intended use, as described in
             the Specifications, within each Licensed Market. The term of the
             License granted above shall be perpetual for all Licensed Programs
             and Documentation licensed and furnished hereunder for the purpose
             of operating Systems installed prior to the expiration or
             termination of this Agreement, subject to the terms of Section
             1.3.3, above.

     4.1.2   License Limitations.

             a. The License sets forth the entirety of Verizon Wireless' rights
                in connection with the Licensed Programs, Documentation, and all
                Intellectual Property Rights in connection with the Licensed
                Programs and Documentation. Accordingly, Verizon Wireless shall
                not: (i) use the Licensed Programs or Documentation for any
                purpose other than as expressly set forth in Section 4.1.1
                above; or (ii) permit any Third Party to use or have access to
                any Licensed Programs or Documentation without the express prior
                written approval of CTS (except for Verizon Wireless'
                representatives who are authorized by Verizon Wireless to use
                Licensed Programs and Documentation in accordance with this
                Agreement and for whom Verizon Wireless is responsible under the
                Nondisclosure Agreement).

             b. Without limiting the generality of the foregoing, Verizon
                Wireless shall not directly or indirectly do any of the
                following (except as expressly set forth in this Agreement or
                other written agreement between CTS and Verizon Wireless): (i)
                sublicense any rights under the License; (ii) print or copy the
                Licensed Programs, other than such number of copies as
                authorized by CTS in the Documentation for use solely by Verizon
                Wireless in accordance with this Agreement; (iii) print or copy
                the Documentation, other than copies for use solely by Verizon
                Wireless in accordance with this Agreement and subject to the
                Nondisclosure Agreement; (iv) modify or prepare derivative works
                of the Licensed Programs or Documentation; (v) reverse engineer,
                decompile, disassemble, or otherwise create, or attempt to
                create, or assist others to create, the source code form of any
                Licensed Programs or a product functionally equivalent to the
                System or any Licensed Programs, unless created without the use
                of any Licensed Programs or other Confidential Information of
                CTS; or (vi) remove, obscure, or alter any Intellectual Property
                Right or confidentiality notices or legends appearing in or on
                any Licensed Programs or Documentation. In addition, with
                respect to the notices and legends described above, Verizon
                Wireless shall: (a) ensure that each copy or reproduction of all
                or any portion of the Licensed Programs or Documentation
                includes all such notices and legends; and (b) upon CTS's
                reasonable prior written notice, provide CTS with reasonable
                access to

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                Verizon Wireless' records and facilities for the
                limited purpose of auditing and verifying Verizon Wireless'
                compliance with the terms of this Section 4.1.2(b).


     4.1.3   New Releases, Maintenance Releases, and Customizations.

             a. New Releases. CTS will provide any New Releases for each System
                in operation as of the date hereof to Verizon Wireless at no
                additional charge, so long as this Agreement remains in full
                force and effect and Verizon Wireless is not in breach or
                default under this Agreement or any the Support Services
                Agreement. Otherwise, CTS, in its discretion, may provide New
                Releases for such System to Verizon Wireless on such terms and
                conditions and for such additional fees as the parties may
                mutually agree to in writing. The parties acknowledge that New
                Releases may require the purchase of new or additional hardware
                or software.

             b. Maintenance Releases. CTS may provide any Maintenance Releases
                for each initial System in operation as of the date hereof to
                Verizon Wireless at no additional charge, so long as Verizon
                Wireless so long as the Support Services Agreement remains in
                full force and effect and Verizon Wireless is not in breach or
                default under this Agreement or the Support Services Agreement.
                Otherwise, CTS, in its discretion, may provide Maintenance
                Releases for such System to Verizon Wireless on such terms and
                conditions and for such additional fees as the parties may
                mutually agree to in writing.

             c. Customizations. Verizon Wireless may, from time to time, wish to
                have certain features of the Licensed Programs customized to its
                specifications. CTS shall have the exclusive right to make and
                deliver such Customizations. All Customizations will be
                performed pursuant to one or more separate, written agreements
                between CTS and Verizon Wireless, which shall specify the
                deliverables, milestones, compensation, confidentiality
                requirements, use restrictions, and other terms, conditions, and
                procedures as CTS and Verizon Wireless may mutually agree to
                with respect to such Customizations.

4.2 SOURCE CODE.

     In the event CTS becomes insolvent, ceases to carry on business on a
     regular basis or fails to perform its maintenance obligations herein, CTS
     shall furnish the latest version of Software source code, operating and
     design documentation, training material and any other necessary information
     to enable Verizon Wireless to maintain and enhance such Software or to
     contract with others for such work

4.3 PROPRIETARY RIGHTS.

     4.3.1   The License shall not transfer any title to or ownership in the
             Licensed Programs or Documentation, or any Intellectual Property
             Rights in connection with the Licensed Programs and/or
             Documentation, from CTS to Verizon Wireless. Accordingly, subject
             only to the License, all right, title, and interest in and to the
             Licensed Programs and Documentation, and all Intellectual Property
             Rights in connection with the Licensed Programs and/or
             Documentation, are and shall at all times remain the

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             exclusive property of CTS or its licensor(s). CTS may use, sell,
             assign, transfer and license rights relating to the Licensed
             Programs and/or Documentation to any Third Party for any purpose
             free from any claim of Verizon Wireless.

     4.3.2   CTS and Verizon Wireless each own certain trade names, logos,
             trademarks, and service marks used in identifying and marketing
             their respective technology, products, and services (collectively,
             "Trademarks"). Each party recognizes and consents for all purposes
             that all Trademarks of the other party, whether or not registered,
             constitute the exclusive property of such other party and will not
             be used except as approved by such other party in advance and in
             writing, nor shall either party use any confusingly similar
             Trademarks of the other party. Nothing contained in this Agreement
             shall be construed as conferring any additional rights upon either
             party to use in advertising, publicity, or other promotional
             activities any Trademark of the other party.

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                           ARTICLE V. ENTIRE AGREEMENT

5.1 ENTIRE AGREEMENT.

     5.1.1   This Agreement, together with all attachments, constitutes the
             entire agreement between Verizon Wireless and CTS with respect to
             the subject matter hereof and supersedes any prior or
             contemporaneous oral or written representations with regard to the
             subject matter. This Agreement may not be amended or modified
             without specific written provision to that effect, signed by both
             parties.

     5.1.2   The parties agree that by the execution of this Agreement, the
             following agreements by and among CTS and GTE Wireless Services
             Corporation be and hereby are terminated: (i) the Master Purchase
             and License Agreement dated as of August 1, 1999, (ii) the Support
             Services Agreement dated as of August 1, 1999, (iii) the Roaming
             Protection Services Agreement dated as of August 1, 1999, (iv) the
             Source Code Escrow Agreement dated as of August 1, 1999, and (v)
             all Market Purchase Agreements dated as of August 1, 1999; and all
             exhibits, schedules, addenda, amendments, and supplements to, and
             restatements of, the foregoing agreements.

     5.1.3   Upon termination of this Agreement each Party hereby releases the
             other from all obligations under any prior agreements.

5.2 COUNTERPARTS.

     This Agreement may be signed in one or more counterparts, each of which
     shall be considered an original and which shall, taken together, constitute
     this Agreement.

5.3 SIGNATURES

IN WITNESS WHEREOF, CTS and Verizon Wireless have caused this Agreement to be
signed and delivered by their duly authorized officers, all as of the date first
written above.

CELLCO PARTNERSHIP,                           Cellular Technical Services
d.b.a. VERIZON WIRELESS:                      COMPANY, Inc:


By:                                           By:
      ---------------------------------             ---------------------------

Name: Lowell C. McAdam                        Name: Bruce R. York
      ---------------------------------             ---------------------------

Title: Executive Vice President and COO       Title: Chief Financial Officer
      ---------------------------------             ---------------------------

Date: Date:
      ---------------------------------             ---------------------------

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