<PAGE>   1

                                                                   EXHIBIT 10.69



                          SPECIAL CUSTOMER ARRANGEMENT
                        FOR MCI WORLDCOM ON-NET SERVICES

This Special Customer Arrangement for MCI WorldCom On-Net Services (this
"Agreement") is made between MCI WORLDCOM Communications, Inc. for itself and
its U.S.-based affiliates and successors (together, "MCI WorldCom") and @Track
Communications, Inc. ("Customer") as of Customer's signature date below
("Contract Date"). The rates, charges, credits, and discounts contained in This
Agreement will be effective the first day of the second (2nd) full billing cycle
following the Contract Date and Customer's delivery of this Agreement to MCI
WORLDCOM (the "Effective Date").

================================================================================

1.  Service Provisioning and Receipt. MCI WorldCom will provide to Customer
    international, interstate, intrastate and local telecommunications services
    pursuant to this Agreement to the extent permitted by law, as supplemented
    by non-inconsistent price list and applicable tariff terms of MCI WORLDCOM
    Communications, Inc., MCI WORLDCOM Network Services, Inc., and WorldCom
    Technologies, Inc. and their U.S.-based affiliates and successors, including
    the MCI WorldCom Tariff F.C.C. No. 1 (individually, a "Tariff" and
    collectively, the "Tariffs"). This Agreement incorporates by reference the
    terms of each such Tariff. These Tariffs may be modified from time to time
    by MCI WorldCom in accordance with law and thereby affect the service
    furnished to Customer. Capitalized terms not otherwise defined herein shall
    have the meaning given them in the Tariffs.

2.  Rates and Discounts. Except as expressly provided to the contrary, the rates
    in this Agreement are in lieu of, and not in addition to, any other
    discounts, promotions and/or credits (Tariffed or otherwise). Customer will
    pay MCI WorldCom's Standard Tariffed Rates and charges for services and
    charges not expressly referenced in this Agreement. Unless otherwise
    expressly stated in Attachment A, the rates in this Agreement do not
    include, and the discounts in this Agreement do not apply to, the following:
    charges for services other than those in this Agreement; non-Tariffed
    products; access or egress (or related) charges imposed by third parties;
    standard Tariffed non-recurring charges and monthly recurring non-usage
    charges; calling card surcharges (unless expressly set forth below); taxes,
    tax-related, or tax-like surcharges; any other charge related to a
    particular Service not expressly set forth in this Agreement; and other
    Tariffed charges, all of which are additional and which Customer agrees to
    pay in addition to the charges in this Agreement. All references to
    "intrastate" and "interstate" contained in this Agreement refer to domestic
    (within the United States) Services only. Any rounding of rates and charges
    will be governed by the Tariff.

3.  Detariffing. Until such time as any federal tariff or federal tariff
    provisions incorporated herein by reference and made applicable to domestic
    interstate or international service are canceled, service will be provided
    pursuant to this Agreement to the extent permitted by law, as supplemented
    by non-inconsistent tariff terms contained in the Company's federal tariffs
    on file with the Federal Communications Commission. These federal tariffs
    may be modified from time to time by the Company in accordance with law and
    thereby affect the service furnished to Customer.

    When any federal tariff or federal tariff provisions applicable to domestic
    interstate or international service are canceled, service will be provided
    pursuant to this Agreement, as supplemented by any non-inconsistent product
    descriptions, definitions, prices and other terms and conditions contained
    in a Company "Service Publication and Price Guide" ("Publication"). This
    Publication shall be deemed to be incorporated herein by reference, will be
    maintained on a Company Internet web-site (www.wcom.com) accessible by, and
    available to, Customer at all times, and may be modified by the Company from
    time to time and thereby affect the service furnished to Customer.

    If enforcement of any modification made by Company to the Publication
    affects Customer in a material and adverse manner, Customer, as its sole
    remedy, may discontinue the affected service without liability (except for
    payment of all charges incurred up to the time of service discontinuance) by
    providing the Company with written notice of discontinuance. To exercise
    this remedy, the Company must receive written notice within thirty (30) days
    of Customer's first learning of the Company's enforcement. The Company may
    avoid service discontinuance if, within thirty (30) days of receipt of
    Customer's written notice, it agrees to amend this Agreement to eliminate
    the applicability to Customer of the relevant Publication provision. If a
    service is disconnected hereunder, the Customer's minimum volume
    requirement(s) will be reduced, as appropriate, to accommodate the
    discontinuance. A "material and adverse change" shall not include, nor be
    interpreted to include: (1) the introduction of a new service or any new
    service feature associated with an existing service, including all terms,
    conditions and prices relating thereto; (2) an adjustment (either an
    increase or a reduction) of a published underlying service price not
    expressly fixed in this Agreement; or (3) the introduction or revision of
    charges established and published by the Company to recover costs imposed on
    it by a governmental or quasi-governmental authority. Domestic intrastate
    service will be provided pursuant to requirements imposed by state law or
    regulatory authorities.

4.  Tariff Option. MCI WorldCom will, if required, file a Tariff option (a
    "Tariff Option") consistent with the terms of Attachment A, which is
    incorporated into this Agreement.

5.  Confidential Information. Customer will not disclose to any third party
    during the Term, or during the three (3) year period after expiration or
    termination of this Agreement, any of the terms and conditions of this
    Agreement unless that disclosure is lawfully required by any federal
    governmental agency or is otherwise required to be disclosed by law or is
    necessary in any legal proceeding establishing rights and obligations under
    this Agreement. MCI WorldCom reserves the right to terminate this Agreement
    by giving written notice to Customer if there is any unpermitted disclosure.

6.  Governing Law. This Agreement and any cause of action arising out of this
    Agreement are subject to the Communications Act of 1934, as amended (the
    "Act"), or, if any part of this Agreement is not governed by the Act, by the
    domestic law of the State of New York without regard to its choice of law
    principles.

7.  Notices. All notices, requests, or other communications (excluding invoices)
    hereunder will be in writing and either transmitted via telefacsimile,
    delivered by hand, delivered via overnight courier, or addressed and sent by
    certified or registered mail, postage prepaid and return receipt requested
    to the parties at the addresses below or any other telephone numbers and/or
    addresses as may be specified by written notice. All notices will be
    effective when received, or, if delivered by certified or registered mail,
    five days after posting.

    Notice To:                 With a copy to:             And to Customer:
    MCI WorldCom               MCI WorldCom                @Track Communications
    205 N. Michigan Avenue     5444 Westheimer             1155 Kas Dr., Ste 100
    Suite 2600                 Houston, TX 77056           Richardson, TX 75081
    Chicago, IL  60601         Attn: Branch Director       Attn: Gen'l Counsel
    Attn: Legal Director                                   Fax: 972-301-2263

8.  Severability. All provisions of this Agreement are severable, and the
    unenforceability or invalidity of any of the provisions will not affect the
    validity or enforceability of the remaining provisions. The remaining
    provisions will be construed in such a manner as to carry out the full
    intention of the parties. Section titles or references used in this
    Agreement will have not substantive meaning or content and are not a part of
    this Agreement.

9.  Entire Agreement. This Agreement, together with the Tariffs, constitutes the
    entire agreement between the parties with respect to its subject matter and
    supersedes all other representations, understandings, or agreements that are
    not fully expressed herein, whether oral or written. Except for Tariff
    modifications initiated by MCI WorldCom, no amendment to this Agreement will
    be valid unless in writing and signed by both parties.

10. Waiver. No waiver of any of the provision of this Agreement will be binding
    unless it is in writing and signed by the party making the waiver. No waiver
    will be deemed or will constitute a waiver of any other provision, whether
    or not similar, and no waiver will be deemed, or will constitute, a
    continuing waiver.

11. Acceptance Deadline. This Agreement will be of no force and effect and the
    offer contained in this Agreement will be withdrawn unless this Agreement is
    signed by Customer and delivered to MCI WorldCom on or before September 30,
    2000.

    The parties have executed this Agreement by their authorized representatives
    as of the dates below.
================================================================================
MCI WORLDCOM COMMUNICATIONS, INC.             @TRACK COMMUNICATIONS, INC.
500 Clinton Center Drive                      1155 Kas Drive
Clinton, Mississippi  39056                   Richardson, TX  75081

By     :   /s/ John McGuire                   By     : /s/ Jana Ahlfinger Bell
        -------------------------                     --------------------------

Name   :       John McGuire                   Name   :   Jana Ahlfinger Bell

Title  :  Vice President, Finance             Title  :     President & CEO

Date   :        10/23/00                      Date   :        9/29/00



                             -- MCI CONFIDENTIAL --
<PAGE>   2

                  ATTACHMENT A TO SPECIAL CUSTOMER ARRANGEMENT

[TEXT HAS BEEN OMITTED PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT. THE
OMITTED MATERIAL HAS BEEN FILED SEPARATELY WITH THE SEC.]







                                 ATTACHMENT A-1
                        -- MCI WORLDCOM CONFIDENTIAL --