Document:

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                                                                  Exhibit 10.5

                                                                  Execution Copy

                                  CONFIDENTIAL

                    MASTER SERVICE AGREEMENT BY AND BETWEEN

                            TWS INTERNATIONAL, INC.

                                      AND

                         BLUE SKY COMMUNICATIONS, INC.

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                                                                  Execution Copy

                            MASTER SERVICE AGREEMENT

      This Master Service Agreement dated as of March 15, 2000 ("Effective
Date"), between TWS International, Inc., a Delaware corporation with principal
offices at 6120 Windward Pkwy., Ste. 200, Alpharetta, GA, USA 30005 ("TWSI") and
Blue Sky Communications, Inc, a Georgia corporation with principal offices at
100 Northpoint Center East, Ste. 300, Alpharetta, GA 30022 ("Company"):

                             W I T N E S S E T H :

      WHEREAS, TWSI is in the business of providing certain services in the area
of wireless communications, including RF and other engineering services related
to PCS technologies; and

      WHEREAS, the parties desire that TWSI provide certain services to the
Company and its subsidiaries pursuant to the terms and conditions of this
Agreement.

      NOW THEREFORE, in consideration of ten dollars, the covenants herein and
other valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:

      1. SERVICES

      Pursuant to the terms hereof, TWSI will provide to the Company and its
majority-owned subsidiaries the services listed (collectively, the "Services")
on the Project Work Order attached hereto as Exhibit "A" (the "PWO"), for the
Company project which is described on such PWO. It is expressly agreed that, if
Company wishes to order Services for additional projects, it shall issue
additional PWOs, each of which shall expressly reference this Agreement and be
subject to it.

      2. FEES & EXPENSES

            2.1 FEES

      The Company will pay TWSI for the Services as set forth on the PWO
attached hereto (collectively, the "Fees"). Additionally, TWSI will separately
bill, and the Company will separately pay, state, provincial and local use,
sales, value added and other taxes imposed on such Services and Reimbursable
Expenses (as defined in Section 2.3 hereof). Any amounts due to TWSI as set
forth in this Agreement are not subject to reduction or set-off because of any
costs, expenses or liabilities incurred by the Company or imposed upon the
Company in the performance of this Agreement or otherwise due as a result of
this Agreement.

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            2.2 PREFERRED CUSTOMER STATUS.

      Notwithstanding the provisions of Section 2.1, the Fees charged to the
Company for the Services will be no higher than the Fees charged for services
with substantially similar attributes offered by TWSI to any other customer
purchasing volumes substantially similar to those volumes purchased by the
Company under this Agreement.

            2.3 EXPENSES

      Unless otherwise expressly provided herein, the Company shall reimburse
TWSI for all reasonably documented out-of-pocket expenses incurred by TWSI in
performing the Services (collectively, "Reimbursable Expenses"). Reimbursable
Expenses include, without limitation, all business travel expenses approved by
the Company in accordance with Company's travel reimbursement policy (including
meals, lodging and subsistence expenses), parts and test equipment costs as
needed to implement the Services (including local automobile rental in the case
of drive testing services), and additional facilities and overhead costs
requested by the Company for individuals who are not TWSI employees, but require
co-location to TWSI or the Company as determined by the Company.

      3. PURCHASE ORDERS

      The Company will request the Services by delivering a PWO to TWSI in the
form of Exhibit "A" attached hereto. Any PWO will be subject to the terms and
conditions of this Agreement. The PWO will be sent by the Company to TWSI in
accordance with Section 20.4 hereof. All PWOs are subject to TWSI's written
acceptance, and any PWO not accepted in writing by TWSI within 14 days of its
receipt thereof shall be deemed rejected.

      4. CONFLICTING AND INCONSISTENT DOCUMENTATION

      Any acceptance, acknowledgment, PWO, Change Order, or other document
(including, without limitation, preprinted forms) containing terms which are
inconsistent with, in addition to, or in conflict with the terms of this
Agreement shall not be effective. Any document which is intended to be an
amendment to this Agreement shall be in writing, dated and executed by the both
parties, and contain the statement: "This document is an amendment to that
certain Master Service Agreement dated as of ________, 2000, between TWS
International, Inc. and Blue Sky Communications, Inc."

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      5. INVOICING AND PAYMENT

            TWSI shall submit invoices to the Company for the Services on a
monthly basis. State, provincial and local sales, value added and use taxes, if
any, and Reimbursable Expenses, shall be separately billed on each invoice. The
Company shall pay all invoices within 30 days after its receipt thereof. In the
event any payment due hereunder is not paid by its due date, it will thereafter,
until paid, bear interest at the rate of 1.5% per month, or the maximum amount
permitted by law, whichever is less. Additionally, the Company will pay all
costs of collection of outstanding amounts, including without limitation
reasonable attorney's fees. TWSI reserves the right to discontinue provision of
the Services in the event of nonpayment; but only with respect to the project
connected to the Services for which there has been nonpayment.

      6. CHANGE ORDERS

      In the event the Company desires to change the scope of the Services or
the Company engages TWSI for different, related or unrelated tasks, the parties
shall execute a change order ("Change Order") which shall specify the Services
and Fees to be paid to TWSI thereunder. Any such Change Order shall be governed
by all the terms of the Agreement, except as modified or amended in the Change
Order.

      7. WORK PRODUCT; COPYRIGHTS; INVENTIONS; RESERVATIONS

            7.1 COMPANY PROPERTY. All writings, drawings and other graphic or
recorded materials in any form (including computer programs, or parts thereof)
prepared by or for, or disclosed to, TWSI in the course of performance of its
duties hereunder shall be the exclusive property of Company (or its client(s),
as the case may be), and all originals and copies thereof shall be delivered by
TWSI to Company (or its client(s), as the case may be) upon completion of the
Services, termination of this Agreement, or at such other time as Company may
request

            7.2 COPYRIGHTS

            Any and all literary, artistic, pictorial, graphic, audiovisual, or
other works or authorships (the "Works") that may be developed by TWSI, either
solely or jointly, in the course of the performance of the Agreement, shall be
and remain the property of Company. TWSI agrees that such work product is "work
made for hire" as such term is defined under the United States Copyright Act of
1976, as amended (the "Act"), and shall belong solely and exclusively to
Company; and further agrees that, to the extent that TWSI's work product does
not constitute "work made for hire" under the Act, it shall and hereby does
irrevocably assign all rights, title and interest in and to all copyrights to
Company. All Works that may be developed by the Company in connection with the
Services being rendered by TWSI shall be licensed by the Company to TWSI on
terms and conditions to be mutually agreed, provided that TWSI shall not use the
Works to promote its business operations with any competitor of Company in any
market in which Company engages in business operations.

            7.3 INVENTIONS, ETC. Any and all inventions, products, processes,
designs, ideas and discoveries, as well as improvements thereof, whether or not
patentable, that are conceived or developed by Contractor individually or
jointly with others in the course of

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performance of its duties hereunder (collectively, "Developments") shall be
Company's sole and exclusive property. TWSI shall promptly notify Company of any
and all such Developments which it, individually or jointly with others, may
conceive or develop during the term hereof, and TWSI shall cooperate fully with
Company (at Company's expense) in applying for and securing patents or other
legal protection for Developments in any and all countries.

            7.4 RESERVATIONS

            TWSI shall not be restricted from using portions of the Works which
do not contain the Company Confidential Information in other services,
engagements or other works developed by TWSI. Furthermore, TWSI retains the
rights to any background technology, technical information, trade secrets,
authorships, inventions, designs which were conceived, developed, or made prior
to the Effective Date, which are independently developed by TWSI, or which are
not made in the course of the performance of the Agreement.

            7.5 DEFINITION

            The terms "in the course of the performance" shall mean the design,
development, and engineering of wireless telecommunications networks.

      8. NAMES AND TRADEMARKS

      Neither party may use the other party's trade name(s), corporate name, or
any trademark or service mark in press releases, advertising, promotions, or any
other manner, without the prior written approval of the other party. As used
herein, party shall be deemed to include a party's affiliates and subsidiaries.

      9. LIMITED WARRANTY.

      TWSI represents and warrants that:

            (A) It has the technical ability to perform the Services as provided
      for herein.

            (B) It will provide the Services with reasonable care, consistent
      with industry standards.

      EXCEPT FOR THE EXPRESS WARRANTIES PROVIDED IN THIS SECTION 8, TWSI
DISCLAIMS ALL OTHER WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, INCLUDING ANY
IMPLIED WARRANTIES OF MERCHANTIBILITY, NONINFRINGEMENT, OR FITNESS FOR A
PARTICULAR PURPOSE.

      10. INDEMNITY.

      Each party (the "Indemnifying Party") agrees to indemnify and hold
harmless the other (the "Indemnified Party") from and against any final award
for loss, damages, claims, costs,

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expenses and liabilities (including reasonable attorneys' fees) arising from
injuries or death to persons or damage to tangible property caused by the
Indemnifying Party's negligent or intentional acts, omissions or failure to
perform in the course of performance of this Agreement ("General Claims"). The
Indemnifying Party shall, in its sole discretion and at its expense, either
settle or defend any such General Claim, and shall pay reasonable attorney's
fees and damages finally awarded against the Indemnified Party in any action,
suit or proceeding (including arbitration) based on a General Claim.

      The Indemnified Party shall (i) promptly notify the Indemnifying Party of
any threatened or asserted General Claim, (ii) promptly send to the Indemnifying
Party all notices, demands, information, instruments, or other documents it
receives in connection with any General Claim, and (iii) cooperate with the
Indemnifying Party, at the Indemnifying Party's expense, in the Indemnifying
Party's disposition of any such General Claim; it being expressly understood
that the Indemnifying Party's obligations under this Section 10 are contingent
upon the Indemnified Party's performance of its obligations under subparagraphs
(i)-(iii) hereof.

      11. CONFIDENTIAL INFORMATION

            11.1 NONDISCLOSURE. All information submitted by one party to the
other in written, magnetic, electronic, graphical, optical or other form that it
is conspicuously marked as " Confidential" or "Proprietary" regarding its
business, finances, technology, and operations is defined as " Confidential
Information" and shall, for a period of 2 years following disclosure, be (a)
held in trust and confidence for the disclosing party, (b) used only in the
performance of this Agreement, (c) not be copied without the permission of the
disclosing party, except for such copies which are required in order to perform
under this Agreement, and (d) not be disclosed to any person or entity other
than employees, agents, subcontractors or agents of the receiving party who have
a need to know for purposes of performance of this Agreement and who have agreed
in writing to comply with the terms of this Section 11.

            11.2 EXCLUSIONS

            The foregoing restrictions and obligations shall not apply to any
information which (a) is or becomes generally available to the public, (b) was
in the possession of the receiving party without restriction prior to receipt
under this Agreement, (c) is independently developed by the receiving party
without use of the disclosing party's Confidential Information, or (d) is
required to be disclosed by a valid order of a court or governmental authority
of competent jurisdiction, provided that the party subject to such order shall
promptly inform the disclosing party of such order and reasonably cooperate with
the disclosing party's efforts, if any, to restrict disclosure by protective
order or otherwise.

      12. TERM AND TERMINATION.

      The term of this Agreement commences on the Effective Date and subject to
the following sentence expires three years thereafter.

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      Either party may terminate this Agreement upon written notice to the other
as follows: (a) Upon the other party's (the "Breaching Party") material failure
to perform under this Agreement, which such failure has not been cured by the
Breaching Party within a period of 60 days after the Breaching Party's receipt
of written notice of its failure to perform; (b) Upon the other party's filing,
either voluntary or involuntary, for relief under any bankruptcy or similar
statute, which such filing has not been withdrawn or stayed within 60 days of
such filing, (c) Upon the other party making an assignment of its assets for the
benefit of its creditors, or (d) Upon the other party's insolvency, liquidation
or ceasing to do business.

      Termination of this Agreement in accordance with its terms shall not
prejudice or otherwise affect the rights or liabilities of the parties with
respect to any indebtedness then owing by either party to the other, nor shall
such termination relieve the parties of any obligations which are expressed or
implied to survive termination of this Agreement.

      13. FORCE MAJEURE

      If the performance by either party of this Agreement is delayed, rendered
impossible or commercially impracticable by reason of natural disaster, act of
God, war, insurrection, riot, failure of suppliers, actions or decrees of
governmental bodies or any other cause beyond the reasonable control of the
party whose performance is affected (a " Force Majeure Event"), the party so
affected shall promptly give notice of such Force Majeure Event to the other
party and the anticipated period of delay caused by such event. The time for the
affected party's performance shall be suspended for such time as the Force
Majeure Event continues to exist, and the delayed party shall resume performance
hereunder upon the cessation of the Force Majeure Event.

      14. SUBCONTRACTORS

      TWSI reserves the right to engage such subcontractors as it, in its sole
discretion, determines appropriate for it to perform under this Agreement;
provided that TWSI shall make commercially reasonable efforts to identify such
subcontractors to the Company in advance of such engagement and obtain the
Company's consent to such subcontractors, which consent will not be unreasonably
delayed or withheld. Notwithstanding the foregoing, TWSI shall remain fully
liable for the Services performed and the acts or omissions of any subcontractor
engaged by it.

      15. FACILITIES, ACCESS & RULES

            15.1 FACILITIES, ACCESS

            The Company shall, and shall cause its customers to, give TWSI and
its employees, subcontractors, agents and representatives access to the
Company's facilities, and the Company's customers' facilities, at such times as
are necessary for TWSI and its employees, subcontractors, agents and
representatives to perform the Services. The Company shall, and shall make
commercially reasonable efforts to cause its customers to, provide TWSI and its
employees, subcontractors, agents and representatives, such electrical
facilities, power, signals,

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lighting, workspace, general office equipment and other facilities as are
reasonably necessary for them to perform the Services; and the Company shall
make commercially reasonable efforts to, and shall cause its customers to make
commercially reasonable efforts to, provide a segregated area for TWSI and its
employees, subcontractors, agents and representatives to store such equipment
and other materials as they deem necessary or advisable to perform the Services.

            15.2 COMPANY RULES, REGULATIONS

            The Company shall communicate in writing to TWSI all rules and
regulations established by the Company with respect to the Company's facilities,
or the Company's customer's facilities, including without limitation safety and
security rules and regulations. TWSI and its employees, subcontractors, agents
and representatives shall use commercially reasonable efforts to comply with all
such rules and regulations while performing hereunder while upon such
facilities.

      16. STATUS OF PARTIES

      The relationship between the parties under this Agreement is that of
independent contractor, and nothing in this Agreement shall be construed so as
to deem the parties partners, joint venturers, principal and agent or other
similar relationship. Each party shall be solely responsible for all matters
relating to payment of its employees, including without limitation compliance
with workers' compensation, unemployment, disability insurance, social security
taxes, withholding and payment of same, and all other laws, rules and
regulations regarding such taxes and withholding. Neither party shall, nor
represent it has the authority to, legally bind or represent the other under
this Agreement.

      17. LIMITATION OF LIABILITY

      NOTWITHSTANDING ANY OTHER PROVISION OF THIS AGREEMENT TO THE CONTRARY,
TWSI's TOTAL LIABILITY TO THE COMPANY FOR ANY BREACH OF OR DEFAULT UNDER THIS
AGREEMENT SHALL NOT EXCEED THE AGGREGATE AMOUNT OF FEES PAID BY THE COMPANY TO
TWSI HEREUNDER. NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT,
INCIDENTAL, CONSEQUENTIAL, SPECIAL, STATUORY OR PUNITIVE DAMAGES, OR LOST
PROFITS, REVENUES OR DATA, ARISING FROM THIS AGREEMENT OR ANY BREACH THEREOF,
EVEN IF ADVISED OR AWARE OF THE POSSIBLITY OF SUCH.

      18. NON-SOLICITATION

      Neither party, nor its affiliates, subsidiaries or other related parties
(collectively, "Solicitor") will, without the other's ("Solicitee") prior
written approval, solicit, hire, contract with, or engage the services of any
person employed by or hired by Solicitee, for a period of six (6) months after
said person has ceased its relationship with Solicitee. In the event Solicitor,
within six (6) months after the last date said person ceased to have a
relationship with Solicitee, hires either as an employee, an independent
contractor, or through a third party, any such former employed or hired person
of Solicitee without Solicitee's prior written approval, then the hiring

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party shall pay Solicitee on or before the date of such hiring a sum equal to
six (6) times the gross monthly compensation as paid by Solicitee to that person
for the last full month of employment or contracting period. With respect to the
payment set forth in this Paragraph 18, the parties agree and acknowledge that
these amounts have been calculated and agreed upon in advance, do not constitute
a penalty, and shall be in addition to every other remedy now or hereafter
enforceable at law, in equity, by statute or under this Agreement.

      19. INSURANCE.

      19.1 COVERAGE. During the term hereof, TWSI shall maintain the following
insurance:

      19.1.1 Commercial general liability insurance, including broad form
contractual liability, broad form property damage, personal injury, products,
completed operations and contractor's protective liability coverages in an
amount not less than five million dollars ($5,000,000) combined single limit for
bodily injury and property damages;

      19.1.2 Automobile liability insurance covering all owned, non-owned and
hired vehicles operated by the TWSI in the performance of work with a coverage
limit of not less than one million dollars ($1,000,000); and,

      19.1.3 Professional errors and omissions insurance with coverage in an
amount not less than one million dollars ($1,000,000), unless otherwise mutually
agreed in writing by the Parties.

      19.2 ADDITIONAL INSURED. Company shall be named as additional insured on
all such policies and TWSI shall provide to Company certificates of insurance
(with respect to such policies) that contains a clause stating, "The insurance
provided by ______________________________________ (TWSI's Insurer's Name) as
described in this certificate shall not be materially changed or canceled
without at least thirty (30) days prior written notice being given to Company,
attention: Director, Contracts, located at 100 Northpoint Center East, Ste. 300,
Alpharetta, GA 30022."

      19.3 WORKERS' COMPENSATION COVERAGE. TWSI represents and warrants that it
carries, and shall continue to carry during the term hereof, any workers'
compensation coverage required by statute and employers liability insurance
coverage, or, in the alternative, TWSI shall provide Company with a copy of a
certificate of authority to self-insure issued by the applicable state workers'
compensation agency. Any such employers liability coverage shall be a minimum of
one hundred thousand dollars ($100,000) for each occurrence ($500,000 for
hazardous work).

      19.4. FOREIGN COVERAGE. With respect to work performed by TWSI outside the
United States, Company and TWSI shall mutually agree in writing upon terms and
conditions related to insurance coverage prior to TWSI performing such work.

      19.5 COVERAGE WARRANTY. TWSI represents and warrants that it has, or shall
obtain prior to performance of any work, the insurance coverages described in
this Article 19. TWSI further represents and warrants that it shall maintain,
and shall require its subcontractors to have

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(prior to their performance of work) and maintain the insurance coverages
described in this Article 19. TWSI shall furnish Company applicable certificates
evidencing insurance coverage required under this Article 19 and promptly notify
Company in writing of any change(s) in such insurance coverage. In the event
insurance coverages pursuant to this Article 19 are determined by Company to be
inadequate with respect to TWSI's performing any Work, Company reserves the
right to immediately suspend (without penalty or responsibility for costs
incurred by TWSI due to such suspension) any applicable work until the parties
effect the required change in the insurance coverage.

      20. MISCELLANEOUS

            20.1 ASSIGNABILITY. TWSI may not assign this Agreement except (i) to
a person or entity controlling, controlled by, or under common control with, it,
(ii) to a purchaser or successor of substantially all of the assets or stock of
its business to which this Agreement pertains, and (iii) TWSI may assign its
right to payment hereunder. The Company may not transfer or assign this
Agreement to any entity, except with the prior written consent of TWSI; in the
event of any assignment by the Company, the Company hereby guarantees the
assignee's performance of its obligations under this Agreement. This Agreement
shall inure to the benefit of the parties, their successors and permitted
assigns.

            20.2 COMPLETE AGREEMENT; AMENDMENT. This Agreement constitutes the
entire agreement and understanding between TWSI and the Company with respect to
the subject matter hereof. This Agreement supersedes and merges any previous
agreements, arrangements of understandings, in whatever form, prior to the
Effective Date. None of the provisions of this Agreement may be waived,
modified, amended or altered, except by an instrument in writing signed by
authorized representatives of both parties.

            20.3 SEVERABILITY. In the event a court of competent jurisdiction
determines that any portion of this Agreement is unenforceable, such provisions
shall be considered stricken from this Agreement and the remainder of this
Agreement shall remain in full force and effect.

            20.4 NOTICE. Any notice to be given under this Agreement by either
party may be effected by either personal deliver in writing, by facsimile, or
mail, registered or certified, postage prepaid with return receipt requested.
Mailed notices shall be addressed to the parties at their addresses appearing
below, but each party may change its address and/or request an additional
reasonable number of persons to receive notice by giving written notice of same
to the other party hereto. Notices delivered personally and by facsimile shall
be deemed to be received as of actual receipt, and mailed notices shall be
deemed to be received three (3) days after posting to the address provided
herein:

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            COMPANY:

            Blue Sky Communications, Inc.
            100 Northpoint Center East, Ste. 300
            Alpharetta, GA 30022
            Attention: President, and General Counsel

            TWSI:

            TWS International, Inc.
            6120 Windward Pkwy, Ste. 200
            Alpharetta, GA 30005
            Tel (770) 752-7033
            ATTENTION: Sue Smith, President; with copy to:  General Counsel

            20.5 GOVERNING LAW. The construction and interpretation of this
Agreement shall at all times and in all respects be governed by the laws of the
State of Georgia not including its conflict and choice of laws provisions.
Except for the arbitration provided for in subparagraph 20.6 below, any action,
lawsuit or proceeding regarding this Agreement shall be brought in the federal
and/or state courts sitting in the Northern District of the State of Georgia and
the parties agree to, and hereby do, submit to the personal and exclusive
jurisdiction and venue of such courts.

            20.6 DISPUTE RESOLUTION. Any controversy, dispute or claim arising
out of, or in connection with, this Agreement must be settled by final and
binding arbitration to be held in Atlanta, Georgia and conducted expeditiously
in accordance with the Commercial Rules, as from time to time amended and in
effect (the "Rules"), of the American Arbitration Association ("AAA"). The
parties expressly agree that the arbitrators may award any legal or equitable
remedy. Judgment upon award rendered by the arbitrators may be entered in any
court (i) having jurisdiction thereof, (ii) having jurisdiction over the party
against whom enforcement thereof is sought, or (iii) having jurisdiction over
any such party's assets. In addition, any claim for provisional relief,
including a claim for temporary restraining order or preliminary injunctive
relief pending arbitration, shall be resolved by arbitration in accordance with
this provision. The procedures and law applicable during the arbitration of any
controversy, dispute or claim will be both the Rules and the internal laws of
the State of Georgia (excluding, and without regard to, its or any other
jurisdiction's rules concerning any conflict of laws). In any arbitration
pursuant to this Agreement, the award or decision must be rendered in writing by
at least a majority of the members of an arbitration panel consisting of three
(3) members, one of whom will be appointed by each of the parties hereto and the
third of whom will be the chairman of the panel and will be appointed by mutual
agreement of the two party-appointed arbitrators. All arbitrators must be
persons who are not employees, agents, or former employees or agents of either
party. In the event of failure of the two party-appointed arbitrators to agree
within thirty (30) days after submission of the dispute to arbitration upon the
appointment of the third arbitrator, the third arbitrator will be appointed by
the AAA in accordance with the Rules. In the event that either of the parties
hereto fails to appoint an arbitrator within thirty (30) days after submission
of the dispute to arbitration, such arbitrator, as well as the third arbitrator,
will be appointed by the AAA in accordance with the Rules. All fees and expenses
of the arbitration shall be borne by the parties equally. However, each party
shall bear the expense of its own counsel, experts,

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witnesses, and preparation and presentation of proofs. Reasonable notice of the
time and place of arbitration shall be given to all persons, other than the
parties, as shall be required by law, in which case such persons or those
authorized representatives shall have the right to attend and/or participate in
all the arbitration hearings in such manner as the law shall require.

      IN WITNESS WHEREOF, each party hereto has caused this Agreement to be
executed in duplicate, to be effective as of the date first written above, by
its duly authorized representative.

BLUE SKY COMMUNICATIONS, INC.               TWS INTERNATIONAL, INC.

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

Name:                                       Name:
     -----------------------------               -------------------------------

Title:                                      Title:
      ----------------------------                ------------------------------

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

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                                LIST OF EXHIBITS

Exhibit A- Project Work Order

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                                   EXHIBIT A

                            PROJECT WORK ORDER[FORM]

Project Work Order Number:

Date Submitted:

Blue Sky Communications, Inc. ("Blue Sky") hereby requests TWS International,
Inc. ("TWSI") to perform services for Blue Sky in accordance with the following
specifications, at the following prices, for the below described project
according to the schedule listed, all in accordance with the provisions of the
Master Services Agreement Number_________ dated ________ between Blue Sky and
TWSI.

1.0 PROJECT DESCRIPTION

The project is:

INSERT DESCRIPTION OF PROJECT; I.E., LOCATION, NETWORK, SITES, ETC.

2.0 SERVICES TO BE PROVIDED/SCOPE

Services to be provided shall be;

INSERT SCOPE OF WORK/DEFINITION OF SERVICES

3.0 SCHEDULE

TWSI shall perform and complete the work in a timely manner and in accordance
with the schedule listed below. Blue Sky recognizes that TWSI's work is
dependent on other firms and activities outside of TWSI's control, and Blue Sky
will monitor, evaluate and expedite issues which may arise that effect TWSI's
performance.

INSERT SCHEDULE

4.0 PRICING/COMPENSATION

INSERT PRICING BASED ON DESCRIBED SCOPE OF WORK

5.0 ESTIMATED CONTRACT VALUE

INSERT TOTAL CONTRACT VALUE ESTIMATE

6.0 CONTACT INFORMATION

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TWS INTERNATIONAL, INC.

Contractor Company Name: TWS International, Inc.

Contractor Address:      6120 Windward Parkway
                         Suite 200
                         Alpharetta, GA 30005

TWSI Project Contact:

TWSI Project Phone:

TWSI Project Fax:

TWSI Federal Tax ID Number______________

BLUE SKY COMMUNICATIONS, INC.

Blue Sky Address:        100 Northpoint Center East
                         Suite 300
                         Alpharetta, GA  30022

Blue Sky Project Contact:

Blue Sky Project Phone:

Blue Sky Project Fax:

Blue Sky Federal Tax ID Number_______________

Blue Sky Communications, Inc.               ACCEPTED: TWS International, Inc.

Name:                                       Name:
      ------------------------------              ------------------------------
Title:                                      Title:
       -----------------------------               -----------------------------

Signature:                                  Signature:
           -------------------------                   -------------------------
Date:                                       Date:
      ------------------------------              ------------------------------

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                                                                  EXHIBIT 10.7

                                  ATTACHMENT 4

                               SERVICES AGREEMENT

                          BLUE SKY COMMUNICATIONS, INC.

                         INTERWAVE COMMUNICATIONS, INC.

InterWAVE Confidential

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                               SERVICES AGREEMENT

                            DATED SEPTEMBER 27, 2000

BETWEEN:

(1)      Blue Sky Communications, Inc., 100 North Point Center East, Suite 300,
         Alpharetta, Georgia 30022 (the "Purchaser"); and

(2)      interWAVE Communications, Inc. of 312 Constitution Drive, Menlo Park,
         CA 94025 (the "Seller").

WHEREAS:

A.       By a Master GSM Products Supply Agreement between the Purchaser and the
         Seller of even date herewith, the Seller agreed to sell certain
         products to Purchaser, and to install, integrate, commission and test
         such products ("the Contract").

B.       The Seller agrees to perform the services (the "Services") set forth in
         this Agreement, described in the attached Scope of Service Work and
         Installation Services ("Appendix 1") incorporated by this reference
         herein, on the terms set out herein.

1.       DEFINITIONS

         Capitalized terms shall, except as expressly provided to the contrary
         herein, bear the same meanings herein as they bear under the Contract.

2.       SCOPE

         The Seller agrees to provide Services, on the terms and conditions
         herein contained, according to the attached Scope of Services.

3.       TERM

         This Agreement shall commence on the date hereof and shall remain in
         full force and effect until December 31, 2003.

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4.       FEES AND PAYMENTS

4.1      Fees for Services are listed on Appendix 2, which is incorporated by
         this reference herein. Services shall be provided in consideration of
         the payments to be made by Purchaser to the Seller under this Agreement
         and under the Contract.

4.2      FEES AND PAYMENTS

         (a)      Fees for the Services, except for Post-Warranty Support, and
                  for Software I & C Engineering Services, and for Documentation
                  for Software Releases, shall be invoiced by the Seller upon
                  shipment of the Products for which Services are ordered.

         (b)      Each payment shall be paid, in U.S. dollars, following receipt
                  by the Purchaser of a duly executed invoice, correctly
                  submitted by the Seller as to the total invoice for the value
                  of the Services for the Products delivered, on the later of :

                  (i)      sixty days after delivery of the first delivery of
                           Products for which the Services are ordered, or,

                  (ii)     when a certificate is issued certifying that the
                           Products and Services invoiced have passed product
                           compliance testing ("Compliance Certificate") ;

         (c)      For Post Warranty Support, if ordered by Purchaser, shall be
         invoiced and paid quarterly in advance, commencing one year after
         issuance of the Compliance Certificate regarding Products to which such
         certificate relates.

         (d)      Any of the Services quoted as Training in Attachment 1 to
         the Contract shall be invoiced ten percent (10%) on placement of the
         order, and paid ninety percent (90%) on completion of the Training,
         paid net thirty (30) days.

4.3      THE PURCHASER'S RESPONSIBILITIES

         The Purchaser shall:

         (a)      Provide qualified technical personnel capable of performing
                  the tasks described for the Purchaser's personnel in Appendix
                  1.

         (b)      Perform the tasks defined under the Purchaser's Scope of
                  Responsibilities in Appendix 1.

4.4      SELLER PROVIDED SERVICE

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         The Seller shall:

        (a)       Provide experienced, duly qualified technical personnel to
                  perform the Services described for the Seller's personnel in
                  Appendix 1.

        (b)       Perform the tasks defined under the Seller's Scope of
                  Responsibilities in Appendix 1.

        (c)       Perform the Inspection and Compliance Tests that are the
                  Seller's responsibility set forth in the Contract, Section 4.

        (d)       Perform each task that is the Seller's responsibility under
                  the Contract and, the Software License attached thereto,
                  including without limitation warranty obligations and
                  non-warranty repair obligations.

        (e)       The Seller shall provide all labor and parts which are
                  necessary for providing the services required hereunder and
                  shall invoice the Purchaser as provided in the Prices under
                  this Agreement.

        (f)       The Seller shall keep accurate, updated, "as installed"
                  documentation for all system hardware and make such
                  documentation available to the Purchaser on request.

        (g)       The Seller shall procure and maintain for itself and its
                  employees all insurance coverage required by applicable law,
                  including worker's compensation insurance. Seller shall also
                  maintain the following insurance:

                  (i)    Commercial general liability insurance, including
                         broad form contractual liability, broad form
                         property damage, personal injury, products, completed
                         operations and contractor's protective liability
                         coverages in an amount not less than five million
                         dollars ($5,000,000) combined single limit for bodily
                         injury and property damages;

                  (ii)   Automobile liability insurance covering all owned,
                         non-owned and hired vehicles operated by the Seller in
                         the performance of Services with a coverage limit of
                         not less than one million dollars ($1,000,000); and,

                  (iii)  Professional errors and omissions insurance with
                         coverage in an amount not less than one million
                         dollars ($1,000,000), unless otherwise mutually agreed
                         in writing by the Parties.

                  (iv)   Purchaser shall be named as additional insured on all
                         such policies and Seller shall provide to Purchaser
                         certificates of insurance (with

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                         respect to such policies) evidencing such policies
                         and coverage. All such policies shall provide that
                         Purchaser shall be given at least 30 days' prior
                         notice of cancellation or termination. In the event
                         of such cancellation or termination, Purchaser may
                         pay for and provide insurance required for Seller
                         hereunder, and bill Seller for the cost thereof.

        (h)       The Seller shall prepare and give to the Purchaser a list of
                  all service personnel who may perform work under this
                  Agreement, who shall be subject to the approval of the
                  Purchaser (not to be unreasonably withheld) for the purpose of
                  granting such personnel access to the Site to perform
                  Services. Seller shall, at Purchaser's reasonable request,
                  remove any such personnel for cause, from a Site or Purchaser
                  facility, and replace such personnel.

        (i)       Where any service is undertaken by remote access by the
                  Seller, the Seller shall follow such procedures as the
                  Purchaser shall consider appropriate including without
                  prejudice to the generality of the foregoing, the
                  registration with the Purchaser of all persons requiring
                  access together with their identification numbers for log
                  in purpose. The Purchaser shall advise the Seller of the
                  password to be used for such purposes and access shall be
                  by confidential password. The Seller shall be wholly
                  responsible for and bear the risk of all access using such
                  procedure and the Purchaser shall be under no obligation to
                  make further inquiry as to the authority of the person
                  accessing the system. The Seller shall be responsible for
                  maintaining the security of the System and ensure that
                  access is protected by such secured ID system permitting
                  access only to the Seller's authorized personnel.

        (j)       The Seller shall provide adequate technical training and
                  technology transfer of the System to the Purchaser, with
                  training provided on Seller's price list for training courses.

        (k)       Seller's employees and/or subcontractors shall comply with all
                  Purchaser safety rules and regulations, job work rules,
                  security regulations, emergency plans and procedures, as
                  applicable.

         (l)      Throughout the term of this Agreement, other contractors and
                  persons (including personnel of Purchaser) may be required to
                  render services in or install equipment or software in the
                  System. Purchaser reserves the right to permit and put such
                  other contractors and persons to work and to afford them
                  access to the System at such times and under such conditions
                  as do not unreasonably interfere with Seller. Seller shall
                  make commercially reasonable efforts to so conduct and
                  coordinate its aspects of the work so as to minimize
                  interference with such other work. In addition, Seller shall
                  also make commercially reasonable efforts to cooperate with
                  Purchaser in providing such information and assistance as

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                  requested by Purchaser or such other contractors or persons
                  for such coordination in a timely manner. Such contractors and
                  other persons shall be required by Purchaser to sign
                  non-disclosure agreements of the form of Attachment 6 of the
                  Contract prior to Seller or Purchaser disclosing Seller's
                  confidential or proprietary information to such persons.

        (m)       Upon Purchaser's order, after termination of the warranty
                  period regarding any Products, Equipment or Software Seller
                  shall provide the following Services ("Post Warranty
                  Support") regarding such for the prices listed in Appendix 2
                  to this agreement:

                  (i)      LEVEL 1 SUPPORT: General Maintenance Services.
                           Maintain the Products and Equipment and Software in
                           good working order and remedy any failure of them to
                           perform in accordance with the specifications
                           therefor or with the warranties set forth in the
                           Contract. Such General Maintenance Services shall
                           include, and Seller shall perform, (i) telephone
                           support, (ii) certain Equipment installation
                           services, (iii) remedial maintenance if Product,
                           Equipment or Software are inoperable or otherwise
                           fail to meet the specifications therefor or the
                           warranties therefore, which is necessary to return
                           the Products and Equipment to these standards
                           ("Remedial Maintenance"), (iv) preventive maintenance
                           to keep Products in good operating condition
                           ("Preventive Maintenance"), and (v) certain
                           additional services.

                  (ii)     LEVEL 2 SUPPORT: Telephone Support. Seller shall
                           provide Purchaser a toll-free number for
                           "telephone support" to respond to problems in the
                           installation, use and maintenance of the Products,
                           Equipment and Software and to provide assistance
                           with regard to such problems. "Telephone support"
                           means Seller's provision of operating
                           instructions, technical advice, and
                           troubleshooting regarding the Products, Equipment
                           and Software and reasonable assistance in helping
                           Purchaser install and operate the updates and
                           enhancements provided. Telephone support shall be
                           available 24 hours per day, 7 days per week.

                  (iii)    EQUIPMENT INSTALLATION SERVICES. Installation,
                           integration, commissioning, and testing of Products
                           as provided in Appendix 1.

                  (iv)     REMEDIAL MAINTENANCE. Seller shall provide remedial
                           maintenance regarding defective or non-functioning
                           Equipment, Products and Software to the same extent,
                           and within the same timeframes, as it provides under
                           its warranty obligations in the Contract and, with
                           respect to Software, the Software License.

                  (v)      PREVENTIVE MAINTENANCE. In addition to the
                           foregoing, Seller shall

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                           provide Preventive Maintenance services for the
                           Equipment on a semi-annual basis. Such maintenance
                           will be performed outside of Purchaser's peak
                           business hours. Preventive Maintenance is a
                           routine check-up and includes the installation of
                           any engineering changes, modifications or
                           improvements made to the Equipment to meet safety
                           requirements or maintain performance to
                           specifications, and testing of any necessary
                           adjustments.

        (n)       ADDITIONAL SERVICES. Purchaser may request and Seller may
                  provide, additional services related to the Equipment,
                  Products and Software (the "Additional Services") at
                  Seller's then current time and materials charges as may be
                  mutually agreed between Purchaser and Seller. Software
                  enhancements, features or applications are not Additional
                  Services under this paragraph and may only be requested
                  under a separate mutually agreed written agreement at
                  Seller's then prevailing prices or non-recurring
                  engineering charges.

         (o)      PURCHASER ORDER AND AVAILABILITY. Purchaser may order Post
                  Warranty Support on not less than an annual basis. Seller
                  shall make Post Warranty Support available to Purchaser for a
                  period of eight (8) years following the date of this
                  Agreement, or five (5) years following the date of the last
                  Product compliance of Equipment delivered under the Contract,
                  whichever is shorter; provided that Seller shall make Software
                  Post Warranty Support available to Purchase for a period of
                  ten (10) years following date of last Product Compliance for
                  such Software, on the condition that Purchaser upgrade its
                  software to Seller's new release no less often than once every
                  two years.

         (p)      TRAINING. Seller shall, at Purchaser's request, provide
                  training to Purchaser in the installation, integration,
                  commissioning, testing, maintenance and operation of the
                  Products. Such training will be at such time and places as
                  mutually agreed. Such training will be at Seller's then
                  current prices, which shall be invoiced to Purchaser.

4.5      SOFTWARE UPGRADES, ENHANCEMENTS, FIXES

         During the term hereof, Seller shall provide Purchaser with any patches
         (including revisions required to address regulatory changes implemented
         by Federal, state or local governmental entities, including without
         limitation, the FCC), and bug fixes of defects to the software for the
         Products of which it learns from any source. For all such patches and
         fixes, Seller shall promptly provide Purchaser with corrected copies of
         same, without additional charge. For upgrades and enhancements, Seller
         shall supply such to Purchaser with the next upgrade or revision to
         such software, which shall be provided yearly at a minimum, at Seller's
         then prevailing prices for such upgrades, enhancements, revisions and
         new releases. Seller will provide complete Documentation conforming to
         the requirements set forth in the Contract for all such upgrades,
         enhancements and fixes. Seller does not provide new features except by
         mutual separate written agreement with Purchaser,

<Page>

         specifying Seller's prices for such features, or as part of Seller's
         new releases of Software.

4.6.     WARRANTIES OF EQUIPMENT AND SOFTWARE

         Without limiting the provision of the Contract or the above provisions,
         The Seller shall replace, make good or rectify any Equipment or
         Software which does not comply with the Warranties set out in Clause 6
         of the Contract.

5.       WARRANTIES AND CONDITION OF SERVICE

5.1      Without limiting the warranties and undertakings provided in The
         Contract, The Seller warrants that all Services performed hereunder
         will be performed in a professional and workmanlike manner by personnel
         duly qualified.

5.2      The Seller's obligation to provide service hereunder shall not extend
         to faults caused by:

         (a)      accident caused by the Purchaser or the negligence of the
                  Purchaser;

         (b)      failure of the Purchaser to use the System in accordance with
                  reasonable requirements of the Seller as set out in the
                  Documentation;

         (c)      failure or defect of the Purchaser's electrical power,
                  external electrical circuitry, air conditioning or humidity
                  control resulting in operating conditions not being in
                  accordance with the Specifications;

         (d)      any party other than the Seller, or a customer service
                  representative authorized by the Seller, modifying, adjusting
                  repairing, servicing or installing the System.

         During an Emergency, the repair of Equipment of any specific work must
         be performed by qualified Purchaser staff who have undertaken the
         training organized by the Seller. The Purchaser shall inform the Seller
         of the details of fault and repair in writing, within 24 hours after
         emergency repair and any work so performed by the Purchaser staff shall
         not invalidate any Warranties provided reasonable care is taken during
         such repair.

6.       DEFAULT

6.1      If a party becomes insolvent or enters into any liquidation or
         insolvency proceedings, has a receiver, manager, administrator, trustee
         or similar officer appointed or has a resolution passed or an order
         made against it for winding up or if

<Page>

         a winding-up petition is issued or if any composition or arrangement
         with its creditors is made, or if it is unable to pay its debts or
         has any execution or attachment levied in respect of any of its
         assets which is not discharged within 30 working days, the other
         party shall be entitled forthwith to terminate this Agreement
         without notice or compensation, except for payment of the amounts
         due under this Agreement.

6.2      Either party may terminate this Agreement upon the other's material
         breach, which has not been cured within ninety (90) days of the
         breaching party's receipt of written notice of such breach, which
         notice must describe such breach in reasonable detail.

6.3      Notwithstanding anything herein provided, any termination of this
         Agreement shall not affect any accrued rights or liabilities of any
         party existing or accruing prior to such termination.

7.       COVENANT NOT TO EMPLOY

         The Purchaser and the Seller agree that during the term of this
         Agreement and for a period of six (6) months thereafter, neither shall
         directly solicit for the purpose of employment in relation to
         performance of maintenance of the System any employee of the other
         involved in the performance of System maintenance. If at any time this
         provision is found to be overly broad under the laws of an applicable
         jurisdiction, then this provision shall deemed to be deleted from this
         Agreement and both parties shall negotiate in good faith in order to
         agree the terms of a mutually satisfactory provision to be substituted
         for this provision found to be void or unenforceable.

8.       INDEMNITY.

         Seller shall indemnify each of Purchaser, its officers, directors,
         employees, contractors, agents and representatives, against any loss,
         cost, damage, claim, expense or liability, including but not limited to
         liability as a result of injury to or death of any person or damage to
         or loss or destruction of any property, arising out of, as a result of,
         or in connection with the performance of this Agreement and directly or
         indirectly caused by the acts or omissions of Seller or a contractor or
         agent of Seller or an employee of any one of them, except that Seller
         shall not be obligated to indemnify any of the foregoing for any such
         loss, cost, damage, claim, expense or liability caused directly or
         indirectly by the acts or omissions of Purchaser or a contractor or
         agent of Purchaser or an employee of any one of them. In the foregoing
         sentence, the words "any person" include, but are not limited to, a
         contractor or agent of Purchaser or Seller and an employee of
         Purchaser, Seller or any such contractor or agent; and the words "any
         property" shall include, but not be limited to, property of the
         Purchaser, Seller or any such contractor or agent, or an

<Page>

         employee of any one of them. Upon Purchaser's request, Seller shall,
         at no cost or expense to Purchaser, defend or settle any suit or
         other legal action asserting a claim for any loss, damage or
         liability specified above, and Seller shall pay any costs (including
         but not limited to attorneys' fees) that may be incurred by
         Purchaser in connection with any such claim or suit or enforcing the
         indemnity granted above, except that Seller's obligation to
         indemnify, defend or settle shall be conditioned on: (i) Purchaser
         promptly notifying Seller in writing within thirty (30) days of
         Purchaser's receipt of written notice of such claim, (ii) Purchaser
         providing Seller with control of the defense and of all related
         negotiations, including settlement negotiations, and (iii) Purchaser
         providing Seller with reasonable assistance, information and
         authority necessary to perform the above obligations. Seller shall
         have no liability for any settlement made without its express
         written consent. The foregoing indemnity is limited by the
         limitations in the Contract, Section 32, page 28.

9.       ENTIRE AGREEMENT

9.1      This Agreement and the Contract and its attached schedules and
         appendices constitute the entire understanding between the parties
         concerning the subject matter hereof and supersedes all prior
         discussions, agreements and representations, whether oral or written
         and whether or not executed by the Seller and the Purchaser. No
         modification, amendment or other change may be made to this Agreement
         or any part thereof unless reduced to writing and executed by
         authorized representative of both parties.

9.2      Subject to Clause 9.3, the terms and conditions of this Agreement shall
         prevail notwithstanding any variance with the terms and conditions of
         any order submitted by the Purchaser following execution hereof. In no
         event shall the preprinted terms and conditions found on any customer
         purchaser order, acknowledgement or other form be considered an
         amendment or modification of this Agreement even if such documents are
         signed by representatives of both parties; such preprinted terms and
         conditions shall be null and void and of no force and effect.

9.3      In the event of any inconsistency between this Agreement and the
         Contract, The Contract shall prevail to the extent of the
         inconsistency.

10.      APPLICABLE LAW

10.1     This Agreement shall be interpreted, construed and governed by the laws
         of the State of California and the parties hereto submit to the
         non-exclusive jurisdiction of the state and federal courts in Santa
         Clara County, California.

11.      ARBITRATION, NOTICE, ASSIGNMENT, CUMULATIVE REMEDIES

<Page>

11.1     The arbitration provisions of the Contract, Section 23, govern any
         dispute between the parties; the notice provisions of the Contract,
         Section 27, govern notice; the Assignment provisions of the Contract,
         Section 35, govern assignment; and the cumulative remedies provisions
         of the Contract, Section 38, govern remedies, under this Agreement.

IN WITNESS WHEREOF, this Agreement has been executed on the day and year first
above written.

BLUE SKY COMMUNICATIONS, INC.             INTERWAVE COMMUNICATIONS, INC.

By: /s/ David Lasier                      By: /s/ Priscilla Lu
   ----------------------------------         --------------------------------

Name:         David Lasier                Name:       Priscilla Lu
     --------------------------------          -------------------------------

Title:    Chief Executive Officer         Title:   Chief Executive Officer
      -------------------------------           ------------------------------

Date:     September 27, 2000              Date:     September 27, 2000
      -------------------------------           ------------------------------

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