Document:

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                                                                   EXHIBIT 10.31

                                 SIDE AGREEMENT

      This Side Agreement ("Agreement") is made as of the 16th day of March,
2005 by and among Clearwire Corporation, a Delaware corporation (the "Company"),
Eagle River Holdings, LLC, a Washington limited liability company ("ERH"), and
Bell Canada, a Canadian corporation incorporated under the Canada Business
Corporations Act ("Bell"). The Company, ERH and Bell are hereinafter
collectively referred to as the "Parties".

      In consideration for the purchase by Bell of shares of Class A Common
Stock ("Class A Common") of the Company pursuant to a Subscription Agreement
dated as of March 8, 2005 (the "Subscription Agreement"), the Parties agree to
the terms and obligations of this Agreement.

      The Company is entering into this Agreement on its own behalf and not on
behalf of its Affiliates (the "Company Affiliates"), but any breach by any of
the Company Affiliates of any of its obligations under this Agreement will be
deemed a breach by the Company under this Agreement. Bell is entering into this
Agreement on its own behalf and not on behalf of its Affiliates (the "Bell
Affiliates"), but any breach by any of the Bell Affiliates of any of its
obligations under this Agreement will be deemed a breach by Bell under this
Agreement. ERH is entering into this Agreement on its own behalf and not on
behalf of the other McCaw Entities, but any breach by any of the McCaw Entities
of any of its obligations under this Agreement will be deemed a breach by ERH
under this Agreement. The Company Affiliates, the Bell Affiliates and the McCaw
Entities are collectively referred to herein as the "Parties Affiliates".
Capitalized terms used herein that are not otherwise defined herein shall have
the meanings assigned to them in the Stockholders Agreement (as defined below).

1.    Confidentiality.

            1.1 Disclosure of Terms. The Parties acknowledge that the terms and
   conditions (collectively, the Transaction Terms") of this Agreement, the
   Amended and Restated Stockholders Agreement dated as of March 16, 2004 (the
   "Stockholders Agreement"), the Joinder to the Stockholders Agreement dated as
   of the date of this Agreement, the Registration Rights Agreement dated as of
   March 16, 2004 (the "Registration Rights Agreement"), the Joinder to the
   Registration Rights Agreement dated as of the date of this Agreement, the
   Subscription Agreement and the Master Supply Agreement, dated as of the date
   of this Agreement, by and between the Company, Bell and BCE Nexxia
   Corporation (the "Master Supply Agreement") and all exhibits, restatements
   and amendments thereto (collectively, the "Transaction Agreements"),
   including their existence, shall be considered Confidential Information (as
   that term is defined below) and shall not be disclosed by the Parties or the
   Parties Affiliates to any third party except in accordance with the
   provisions set forth below.

            1.2 Definition of Confidential Information. For the purposes of this
   Agreement, "Confidential Information" means (i) any proprietary or
   confidential information, including without limitation the Transaction Terms,
   whether in written, oral, electronic or other tangible or intangible form,
   which prior to the date hereof has been, or after the date hereof may be,
   furnished by or on behalf of a Party or a Parties Affiliate (as applicable,
   the "Disclosing Party") to another Party or a Parties Affiliate (as
   applicable, the "Receiving Party") or its Representatives (as defined below),
   relating to the business of the Disclosing Party, the investment in the
   Company by Bell or the commercial relationship established under the Master
   Supply Agreement, together with notes, work papers or other documents
   prepared by the Receiving Party or its Representatives which contain, reflect
   or are based upon such information, and (ii) the fact that such information
   has been made available to the Receiving Party. Notwithstanding the
   foregoing, the following will not constitute "Confidential Information" for
   purposes of this Agreement:

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      (a)   information that the Receiving Party can show by documented and
            cogent evidence was known to the Receiving Party prior to the
            disclosure thereof under this Agreement or the Confidentiality
            Agreement (as defined below);

      (b)   information that is or becomes generally available to the public
            other than as a result of a disclosure by the Receiving Party in
            breach of this Agreement or the Confidentiality Agreement;

      (c)   information that is or becomes available to the Receiving Party on a
            non-confidential basis from a source other than the Disclosing
            Party, provided that such source is not known by the Receiving
            Party, after reasonable inquiry, to be prohibited from transmitting
            the Confidential Information by a contractual, legal or fiduciary
            obligation to the Disclosing Party or any other person; and

      (d)   information that is independently acquired or developed by the
            Receiving Party without reference to the Confidential Information.

            1.3 Confidentiality and Restricted Use. Subject to Sections 1.4, 1.5
   and 1.6, a Receiving Party agrees that:

      (a)   it shall not, directly or indirectly, use the Confidential
            Information furnished to it by or on behalf of the Disclosing Party,
            for any purpose other than in connection with the investment by Bell
            in the Company or the commercial relationship established under the
            Master Supply Agreement;

      (b)   the Confidential Information shall be kept confidential;

      (c)   it shall not, in any manner whatsoever, disclose or disseminate the
            Confidential Information (in whole or in part) furnished to it
            hereunder to any person, provided that, subject to the terms and
            conditions of this Agreement, any disclosure of the Confidential
            Information may be made to:

            (i)   any Affiliate, officer, director, employee, accountant,
                  auditor or attorney of the Receiving Party (collectively,
                  "Representatives") who needs to know such Confidential
                  Information in connection with the investment by Bell in the
                  Company, the commercial relationship established under the
                  Master Supply Agreement, the performance of services for the
                  Receiving Party or the business operations of the Receiving
                  Party and who has agreed or is otherwise obligated to abide by
                  the terms of this Section 1; and

            (ii)  any other person upon the prior written consent of the
                  Disclosing Party.

            1.4 Press Releases. The Company and Bell agree that they may,
   individually or collectively, and from time to time, wish to issue press
   releases or make other forms of public disclosure regarding the investment by
   Bell in the Company or the commercial relationship established under the
   Master Supply Agreement. Subject to the following, the Company and Bell agree
   that the content of any such press release or public disclosure will require
   the consent of both the Company and Bell prior to any issuance or disclosure,
   provided, however, that such consent will not be required if such issuance or
   disclosure: (i) is required under applicable U.S. or Canadian securities laws
   and stock exchange or stock market rules and regulations (provided that the
   Company or Bell, as applicable, will be afforded a reasonable opportunity to
   comment), (ii) is substantially the same as disclosure already approved by
   each of the Company and Bell under this Section 1.4, or (iii) only discloses
   (a) the fact that Bell has invested the subscribed amount in the Company, (b)
   Bell's percentage ownership in the Company, and/or (c) the fact that Bell is
   the Company's exclusive strategic partner in its Voice over Internet Protocol
   ("VoIP") service offering in the United States and its preferred VoIP

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   partner internationally, and that Bell and the Company will jointly explore
   other areas of collaboration particularly in the area of value added
   services, both in the U.S. and internationally. No other announcement
   regarding the Parties or the Parties Affiliates in a press release,
   conference, advertisement, announcement, professional or trade publication,
   mass marketing materials or otherwise to the general public may be made
   without each of the Company's and Bell's prior written consent.

            1.5 Permitted Disclosures. Notwithstanding any of the foregoing, (a)
   the Company may disclose any of the Transaction Terms to (i) its current or
   bona fide prospective investors, (ii) bona fide prospective acquirers of the
   Company or any of its assets, (iii) prospective recipients of the Company's
   securities in current or future acquisitions by the Company, (iv) bona fide
   prospective lenders, and (v) any of its employees, investment bankers,
   lenders, accountants, auditors, attorneys and other advisors in connection
   with any such transactions or any of the transactions described in the
   Transaction Agreements, in each case only where such persons or entities are
   under reasonable nondisclosure obligations; (b) Bell may disclose any of the
   Transaction Terms to bona fide prospective acquirers of all or a part of
   Bell's Shares who at the time of such disclosure would be permitted to
   acquire such Shares in a Transfer made in accordance with the Stockholders
   Agreement or this Agreement, with any required consent of the Company
   obtained prior to such disclosure, and any of its employees, investment
   bankers, lenders, accountants, auditors, attorneys and other advisors in
   connection with any such transaction or any of the transactions described in
   the Transaction Agreements, in each case only where such persons or entities
   are under reasonable nondisclosure obligations; (c) the Company and Bell may
   disclose (other than in a press releases or other public announcements
   described in Section 1.4 above) only (i) the fact that Bell has invested the
   subscribed amount in the Company, (ii) Bell's percentage ownership in the
   Company, and/or (iii) the fact that Bell is the Company's exclusive strategic
   partner in its VoIP service offering in the United States and its preferred
   VoIP partner internationally, and that Bell and the Company will jointly
   explore other areas of collaboration particularly in the area of value added
   services, both in the U.S. and internationally; and (d) the Company and Bell
   shall have the right to disclose to third parties any information regarding
   the Transaction Terms disclosed in a press release or other public
   announcement made in compliance with Section 1.4. Notwithstanding anything
   else in this Agreement, including the immediately preceding sentence, none of
   the terms and conditions of the Master Supply Agreement, the commercial
   relationship established thereunder and any Confidential Information relating
   thereto can be disclosed without Bell's prior written consent; provided,
   that, the redacted version of the Master Supply Agreement attached hereto as
   Schedule 1.5 (the "Redacted MSA") may be disclosed by the Company to any of
   the persons or entities set forth in clause (a) of the preceding sentence, in
   each case only where such persons or entities are under reasonable
   nondisclosure obligations; provided further, that if the Redacted MSA fails
   to contain terms of the Master Supply Agreement that the Company, in the
   reasonable opinion of the Company's legal counsel, is required to disclose to
   such persons or entities under applicable law, the Company may disclose such
   terms with the prior written consent of Bell, acting reasonably, to such
   persons or entities that are under reasonable nondisclosure obligations after
   having provided Bell with reasonable advance notice (and reasonable
   opportunity to comment) setting forth in sufficient detail the nature of the
   requirement under applicable law and a copy of the document containing such
   terms; provided further, that the Company may incorporate, to the extent
   reasonable and necessary, the economic terms of the Master Supply Agreement
   into financial models prepared by the Company for such persons or entities
   and deliver such financial models to such persons or entities that are under
   reasonable nondisclosure obligations.

            1.6 Compelled Disclosure. In the event that (i) any action, suit,
   proceeding or claim is brought or asserted against the Receiving Party or any
   of its Representatives seeking to compel the disclosure of any of the
   Confidential Information, or (ii) the Receiving Party otherwise becomes
   legally compelled (including, without limitation, pursuant to U.S. federal
   and state and Canadian securities laws and/or other applicable regulatory
   laws) or compelled

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   pursuant to the rules of any stock exchange or market on which the Company's
   or Bell's securities are listed, in the reasonable opinion of the Receiving
   Party's legal counsel, to disclose any of the Confidential Information, the
   Receiving Party shall provide, to the extent legally permitted to do so, the
   Disclosing Party with prompt written notice of such action, suit, proceeding,
   claim or other event of legal compulsion so that the Disclosing Party may
   seek a protective order or seek confidential treatment of such Confidential
   Information. In the event that such protective order or confidential
   treatment is not obtained by the Disclosing Party for any reason, the
   Receiving Party agrees to furnish only that portion of the Confidential
   Information which, in the reasonable opinion of the Receiving Party's legal
   counsel, is required. To the extent legally permitted to do so, the Receiving
   Party will permit the Disclosing Party a reasonable opportunity to review and
   comment on the form and content of any Confidential Information that will be
   disclosed pursuant to this Section; provided, that, the Receiving Party shall
   not be required to make any changes to the form and content of any
   Confidential Information that will be disclosed pursuant to this Section
   requested by the Disclosing Party based on such review or comments. In any
   event, the Receiving Party will not oppose action by the Disclosing Party to
   obtain an appropriate protective order or other reliable assurance that
   confidential treatment will be accorded to the Confidential Information.
   Notwithstanding the foregoing, to the extent required to be disclosed by the
   Company under 47 CFR 1.2112(a), the number of shares held by Bell and the
   percentage interest of Bell in the Company may be disclosed by the Company
   without the requirement for the consent of Bell or procedures set forth in
   this Section 1.6.

            1.7 Other Confidentiality Agreements. With respect to any
   information exchanged between the Parties and/or the Parties Affiliates that
   is Confidential Information under this Section 1, this Section 1 shall
   supersede and replace that certain Confidentiality Agreement, dated November
   29, 2004 (the "Confidentiality Agreement") executed among the Company, NR
   Communications, LLC and Bell. Additionally, the Company and ERH agree that
   neither of them shall enforce, and hereby expressly waive, the
   confidentiality terms set forth in Section 13.15 of the Stockholders
   Agreement nor any similar confidentiality obligation or restriction contained
   in any of the Transaction Agreements (except for this Agreement), against
   Bell. Notwithstanding the foregoing, the confidentiality provisions set forth
   in the Master Supply Agreement shall be in addition to, and shall not be
   limited or modified in any way by, the terms of this Agreement; provided,
   that, nothing in the Master Supply Agreement shall have the effect of
   preventing or otherwise limiting the disclosures of Confidential Information
   permitted under Sections 1.4, 1.5 and 1.6 of this Agreement.

2.    Right to Board Seat

            2.1 Nomination of Bell Director. In connection with each election of
   directors of the Company, unless Bell otherwise instructs the Company in
   writing, the Company shall nominate the then Chief Executive Officer ("CEO")
   of BCE Inc. ("Bell Director") to serve as a director of the Company,
   provided, however, that if the directors of the Company reasonably determine
   that (a) compliance with the terms of this Section 2.1 is prohibited in the
   exercise of their fiduciary duties, or (b) the Company reasonably determines
   that compliance with the terms of this Section 2.1 is prohibited under (i)
   applicable securities laws, (ii) stock exchange or stock market rules and
   regulations or (iii) Delaware law, then the Company will so notify Bell and,
   if so requested by Bell, following a determination under (b) above only, will
   provide an opinion from the Company's legal counsel confirming that they or
   it are so prohibited and the Company will, for and only for the duration of
   such prohibition, be excused from complying with the terms of this Section
   2.1.

            2.2 Election of Director. In any election of directors of the
   Company, each McCaw Entity (including without limitation ERH) shall vote all
   of its Shares in favor of the election of the Bell Director, it being
   understood that the initial Bell Director, to be elected immediately
   following the execution and delivery of this Agreement, shall be Michael J.
   Sabia, provided, however, that if the Company reasonably determines that
   compliance with the terms of this

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   Section 2.2 is prohibited under (i) applicable securities laws or (ii) stock
   exchange or stock market rules and regulations, then the Company will so
   notify Bell and, if so requested by Bell, will provide an opinion from the
   Company's legal counsel confirming that they or it are so prohibited and the
   McCaw Entities will, for and only for the duration of such prohibition, be
   excused from complying with the terms of this Section 2.2.

            2.3 Removal and Replacement of Bell Director. Each McCaw Entity
   (including without limitation ERH) agrees not to vote to remove the Bell
   Director unless he or she ceases to be the CEO of BCE Inc. In the event that
   the Bell Director ceases to serve as a member of the Board of Directors of
   the Company ("Board") during his or her term in office as a result of he or
   she ceasing to be the CEO of BCE Inc., and for so long as Bell has the right
   to nominate the Bell Director pursuant to Sections 2.1 or 2.2, the resulting
   vacancy on the Board shall be filled by the new CEO of BCE Inc. as the Bell
   Director, upon notice of Bell to the Company to that effect. Each McCaw
   Entity (including without limitation ERH) agrees to use commercially
   reasonable efforts and take all action within its power, including, but not
   limited to, the voting of Voting Shares, to cause the removal of the Bell
   Director as provided above, and to cause the election of the new CEO of BCE
   Inc. as the Bell Director as soon as possible after receipt of notice of Bell
   to the Company to that effect. If there is a vacancy in the Bell Director
   seat for any reason and Bell does not notify the Company as provided above
   that such vacancy is to be filled by the CEO of BCE Inc. on or before the
   date which is 90 days after the date such seat first becomes vacant, the
   rights and obligations of the Company, Bell and the McCaw Entities (including
   without limitation ERH) under this Section 2 shall terminate and be of no
   further force or effect.

            2.4 Termination of Right to Board Seat. The effectiveness of this
   Section 2 shall be terminated upon the earliest to occur of (i) the date that
   Bell and the Bell Affiliates cease to own, either directly or indirectly, in
   the aggregate, Shares representing at least 5% of the Voting Shares of the
   Company, (ii) the date that Bell and the Bell Affiliates cease to own, either
   directly or indirectly, in the aggregate, Shares representing at least 50% of
   the Shares of the Company purchased under the Subscription Agreement (as
   adjusted for any Recapitalization Event (as defined below)), or (iii) the
   date upon which any competitor of the Company or the Company Affiliates
   acquires control of Bell or BCE Inc. For greater certainty, the effectiveness
   of this Section 2 shall not terminate upon the closing of the Company's IPO.

3.    Observation Rights.

      ***

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      ***

4.    Disclaimer of Corporate Opportunity Doctrine. The Company acknowledges
that Bell and the Bell Affiliates will likely have, from time to time,
information that may be of interest to the Company ("Business Information")
regarding a wide variety of matters. The Company, as a material part of the
consideration for this Agreement agrees that Bell, the Bell Affiliates and the
Observers shall have no duty to disclose any Business Information to the Company
or permit the Company to participate in any projects, business or investments
based on any Business Information, or to otherwise take advantage of any
opportunity that may be of interest to the Company if it were aware of such
Business Information, and hereby waives, to the extent permitted by law, any
claim based on the corporate opportunity doctrine or otherwise that could limit
Bell's or Bell Affiliates' ability to pursue opportunities based on such
Business Information or that would require Bell, the Bell Affiliates or the
Observers to disclose any such Business Information to the Company or offer any
opportunity relating thereto to the Company. The Company agrees that the Bell
Director shall have no obligations to the Company, including obligations or
duties to disclose any Business Information, other than the obligations and
duties imposed on the Bell Director as a director of the Company under Delaware
law.

5.    Restrictions on Exercise of Drag Along Right Against Bell.

            5.1 Notwithstanding Section 6 of the Stockholders Agreement, the
   Company and the McCaw Entities (including without limitation ERH) agree and
   acknowledge that Bell shall have no obligation to take any action specified
   under Section 6 of the Stockholders Agreement in connection with the exercise
   of the Drag Along Right or any event giving rise to a Drag Along Right unless
   each of the following conditions is satisfied:

      (i)   The Selling McCaw Entity shall be required to commit to a Transfer
            in a bona fide arm's length transaction with a Person that is not an
            Affiliate of the McCaw Entities (including without limitation ERH).

      (ii)  The only representations, warranties or covenants that Bell shall be
            required to make in connection with a Transfer giving rise to a Drag
            Along Right (such Transfer, a "Company Sale") are representations
            and warranties with respect to its own ownership of the Company's
            securities to be sold by it and its ability to convey title thereto
            free and clear of liens, encumbrances or adverse claims and
            reasonable covenants regarding confidentiality, publicity and
            similar matters.

      (iii) The liability of Bell with respect to any representation and
            warranty or covenant made by the Company in connection with a
            Company Sale shall be several and not joint with any other person.
            Such liability shall be limited to Bell's pro rata share of the
            aggregate consideration payable to all stockholders of the Company
            in the Company Sale, which may be held in escrow for a period not to
            exceed 12 months from the closing date of the Company Sale.

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      (iv)  Bell shall not be required to amend, extend or terminate any
            contractual or other relationship with the Company, the acquirer or
            their respective Affiliates.

      (v)   Bell shall not be required to agree to any covenant not to compete
            or covenant not to solicit customers, employees or suppliers of any
            party to the Company Sale; provided, that, for the avoidance of
            doubt, any such obligations under the Master Supply Agreement shall
            survive the Company Sale, unless the Master Supply Agreement is
            terminated according to its terms.

            5.2 Bell will not be bound by the Drag Along Right following any
   assignment of the Drag Along Right (by operation of law or otherwise) by any
   McCaw Entity (including without limitation ERH) unless the Person to whom
   such right is assigned shall have executed a written agreement, substantially
   in the form of this Agreement, pursuant to which such Person becomes a party
   to this Agreement and agrees to be bound by all the provisions hereof.

            5.3 Bell will not be bound by the Drag Along Right if any McCaw
   Entity (including without limitation ERH) takes or consents to any action
   that results in the ability of any Person not a party to this Agreement to
   exercise the Drag Along Right against Bell, unless such Person shall have
   executed a written agreement, substantially in the form of this Agreement,
   pursuant to which such Person becomes a party to this Agreement and agrees to
   be bound by all the provisions hereof.

6.    Representations, Warranties and Covenants.

            6.1 Representations and Warranties of the Company and ERH. Each of
   the Company and ERH represent and warrant, severally but not jointly, as
   follows:

      (a)   Such entity is duly organized and existing under the laws of the
            jurisdiction under which such entity is organized and is in good
            standing under such laws. Such entity has requisite power and
            authority to own and operate its properties and assets, and to carry
            on its business as presently conducted and as proposed to be
            conducted.

      (b)   Such entity has all requisite power and authority to execute and
            deliver this Agreement and to carry out and perform its obligations
            under the terms of this Agreement.

      (c)   All action on the part of such entity (and its officers, directors,
            stockholders, managers or members, as applicable) necessary for the
            authorization, execution, delivery and performance by such entity,
            respectively, of this Agreement have been taken on or prior to the
            date hereof. This Agreement, when executed and delivered by such
            entity shall constitute the valid and binding obligations of such
            entity, enforceable in accordance with its terms, subject to laws of
            general application relating to bankruptcy, insolvency and the
            relief of debtors and rules of law governing specific performance,
            injunctive relief or other equitable remedies.

            6.2 Additional Representation and Warranty of ERH. ERH represents
   and warrants that, as of the date hereof, ERH owns the number of shares of
   the Company listed on Schedule 6.2 attached hereto, free and clear of liens
   or encumbrances, and has not, prior to or on the date of this Agreement,
   executed or delivered any proxy or entered into any other voting agreement or
   similar arrangement other than the Stockholders Agreement and this Agreement.
   As of the date hereof, no other McCaw Entity owns any voting or economic
   interest in the Company.

            6.3 Transaction Documents. For so long as the Stockholders Agreement
   remains in effect, in addition to, and not in substitution for, any
   information or related rights granted in the Transaction Documents or
   otherwise, the Company agrees to provide Bell with copies of

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   current versions of the Transaction Documents (fully executed) and the
   Company's Certificate of Incorporation (file-stamped), in each case,
   reflecting all amendments and restatements thereto through such date of
   request, promptly following a request by Bell, if any of such Transaction
   Documents or Certificate of Incorporation have been amended since the Company
   last provided copies thereof.

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      ***

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      ***

8.    Prohibitions and Restrictions on Certain Sales of Company Securities.

            8.1 Prohibition on Certain Sales of Company Securities to McCaw
   Entities. Notwithstanding anything to the contrary in the Stockholders
   Agreement the Company shall not issue or sell any Shares of any class of
   capital stock of the Company or any other equity securities of the Company,
   or any securities or instruments convertible into or exchangeable or
   exercisable for, directly or indirectly, any Shares or any other equity
   securities of the Company (collectively, "Company Securities"), to any McCaw
   Entity (including without limitation ERH) for a price per share (calculated
   on an as-if converted into or exercised or exchanged for Class A Shares of
   the Company basis) less than the Original Issue Price (as proportionately
   adjusted for any Recapitalization Event), except pursuant to (i) exercises by
   the McCaw Entities of their preemptive rights pursuant to Section 1 of the
   Stockholders Agreement in circumstances where Bell is also entitled to
   exercise those rights, and exercises by ERH or any other McCaw Entities of
   its preemptive rights pursuant to Section 11 of this Agreement in
   circumstances where Bell is also entitled to exercise those rights, and (ii)
   any exercises or conversion by any McCaw Entities of any Options or
   Convertible Securities held by the McCaw Entities as of the date hereof.

            8.2 Prohibition on Certain Sales of Company Securities to
   Competitors of Bell. Notwithstanding anything to the contrary in the
   Stockholders Agreement, the Company shall not issue, sell, assign, dispose
   of, pledge or otherwise Transfer any Company Securities or any debt of the
   Company to any Canadian competitor of Bell set forth on Schedule 8.2 attached
   hereto or any Affiliate, assignee or successor of any Canadian competitor of
   Bell set forth on Schedule 8.2 (each a "Bell Competitor*), as such Schedule
   may be updated from time to time upon mutual agreement of the Parties.
   Additionally, the Company shall not borrow any capital from any Bell
   Competitor. Notwithstanding the foregoing, the Company may sell any of its
   securities to a Bell Competitor in a public offering registered under the
   Act, provided that the Company cannot solicit any Bell Competitor. The
   effectiveness of this Section 8.2 shall be terminated upon the date that Bell
   and the Bell Affiliates cease to own, either directly or indirectly, in the
   aggregate, Shares representing at least 50% of the Shares of the Company
   purchased under the Subscription Agreement (as adjusted for any
   Recapitalization Event (as defined below)).

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            8.3 Right of First Refusal with Respect to Sales of Company
   Securities by any McCaw Entity to Bell Competitors. Notwithstanding anything
   to the contrary in the Stockholders Agreement, with respect to any Transfer
   by any McCaw Entity (including without limitation ERH) of any of its Company
   Securities, or securities of ERH (or any other McCaw Entities that owns,
   directly or indirectly, more than five percent (5%) of the outstanding
   Company Securities or, if less than five percent (5%), represents its primary
   asset) ("McCaw Securities"), to a Bell Competitor, Bell shall have, and the
   McCaw Entities hereby irrevocably grant to Bell, the rights (the "Competitor
   Right of First Refusal") described in this Section 8.3.

      (a)   Any McCaw Entity (the "Selling McCaw Entity") that desires to
            Transfer any of its Company Securities or McCaw Securities in
            compliance with this Section 8.3 must first receive a bona fide,
            written offer ("Competitor Offer") from the applicable Bell
            Competitor for the acquisition of any or all of the Selling McCaw
            Entity's Company Securities or McCaw Securities. Upon receipt and
            acceptance of a Competitor Offer that the McCaw Entity intends to
            accept, the Selling McCaw Entity shall give written notice (the
            "Competitor ROFR Notice") to Bell stating that the Selling McCaw
            Entity intends to Transfer Company Securities or McCaw Securities to
            a Bell Competitor. The Competitor ROFR Notice shall identify the
            Bell Competitor, specify the type and number of Company Securities
            or McCaw Securities to be Transferred to the Bell Competitor (the
            "Competitor ROFR Securities"), specify the aggregate and per share
            price (in cash or other consideration) (the "Competitor Sale Price")
            that the Bell Competitor has agreed to pay for the Competitor ROFR
            Securities, and enclose an accurate summary of all other material
            terms and conditions of the proposed Transfer.

      (b)   The Competitor ROFR Notice shall constitute the Selling McCaw
            Entity's binding offer to sell the Competitor ROFR Securities to
            Bell on the terms set forth in the Competitor ROFR Notice and this
            Agreement. Bell shall have 10 business days after delivery of the
            Competitor ROFR Notice (the "Competitor ROFR Exercise Period") to
            exercise its right to purchase all, but not less than all of, the
            Competitor ROFR Securities at the Competitor Sale Price and upon the
            other terms and conditions set forth in the Competitor ROFR Notice
            by written notice to the Selling McCaw Entity within the Competitor
            ROFR Exercise Period, provided that such written notice may provide
            that the exercise of the Competitor Right of First Refusal by Bell
            is subject to obtaining the required regulatory approvals, for which
            Bell is using commercially reasonable efforts to satisfy the
            requirements as soon as reasonably practicable.

      (c)   Failure to deliver such notice within the Competitor ROFR Exercise
            Period shall constitute a waiver of the Competitor Right of First
            Refusal with respect to the Competitor ROFR Securities, and the
            Selling McCaw Entity shall have ninety (90) business days thereafter
            to complete the Transfer of the Competitor ROFR Securities to the
            Bell Competitor on substantially the same terms set forth in the
            Competitor Offer; otherwise, the Competitor ROFR Securities
            thereupon be again subject to the right of first refusal described
            in this Section 8.3 before any Transfer can be made.

      (d)   Delivery of a notice exercising the Competitor Right of First
            Refusal shall create a binding contract between the Selling McCaw
            Entity and Bell for the purchase and sale of the Competitor ROFR
            Securities at the Competitor Sale Price and on the terms and
            conditions in the Competitor Offer, as described in the summary
            provided in the Competitor ROFR Notice, and this Section 8.3. In
            that event, Bell shall deliver the Competitor Sale Price for the
            Competitor ROFR Securities, in immediately available funds, to the
            Selling McCaw Entity to effectuate the Transfer of the Competitor
            ROFR Securities within five business days after the end of the
            Competitor ROFR Exercise Period or the satisfaction of the
            conditions to closing contained in the Competitor ROFR Notice;
            provided that Bell is using commercially

                                      11
<PAGE>

            reasonable efforts to cause such condition to be satisfied as soon
            as reasonably practicable. The Selling McCaw Entity shall effectuate
            the Transfer of the Competitor ROFR Securities by promptly
            delivering to Bell (and/or the applicable Affiliate of Bell) one or
            more certificates, properly endorsed for transfer, that represent
            the Competitor ROFR Securities, together with stock powers and such
            other closing documentation that Bell (and/or the applicable
            Affiliate of Bell) may reasonably request. The Company and the McCaw
            Entities (including without limitation ERH) agree to consent as
            required under the Stockholders Agreement to any Transfer by a McCaw
            Entity to Bell or its Affiliates under this Section 8.3.

9.    Change of Control Not a Repurchase Event. The Company and the McCaw
Entities (including without limitation ERH) agree to consent under Section 7 of
the Stockholders Agreement to a Change of Control of BCE Inc. or Bell so that it
does not constitute a Repurchase Event with respect to any Stock held by Bell or
the Bell Affiliates.

10.   Permitted Transfers. The Company and the McCaw Entities (including without
limitation ERH) agree to consent to any Transfers of any or all of Bell's and
the Bell Affiliates' Company Securities between or among Bell and/or the Bell
Affiliates who qualify as Qualified Transferees and who agree in writing to be
bound by the terms of the Stockholders Agreement and this Agreement, so that
such Transfers qualify as Permitted Transfers; provided, that the maximum number
of transferees permitted under this Section 10 shall not exceed five (5).

11.   ***

                                      12
<PAGE>

      ***

      ***

13.   Definition of Transfer. Notwithstanding anything to the contrary in this
Agreement or the Stockholders Agreement, the definition of Transfer for all
purposes of this Agreement shall be the definition of Transfer set forth in
Section 4.01 of the Stockholders Agreement without regard to Section 4.03 of the
Stockholders Agreement.

14.   Termination of Restrictions on Transfer in Stockholders Agreement.

            14.1 Company Default under Master Supply Agreement. Notwithstanding
   anything to the contrary in the Stockholders Agreement, if the Company
   terminates the Master Supply Agreement for any reason (other than due to a
   breach of or default under the Master Supply Agreement by Bell) or breaches
   or is in default under the Master Supply Agreement and such breach or default
   (i) is not curable or, if curable, is not cured in compliance with and within
   the time period applicable under the Master Supply Agreement and (ii) would
   give Bell a basis for terminating the Master Supply Agreement (a "Company
   Breach"), none of the Company, the Company Affiliates and the McCaw Entities
   (including without limitation ERH) will enforce the provisions of Sections 4
   and 5 of the Stockholders Agreement with respect to any Transfer of Company
   Securities by Bell and the Bell Affiliates, and hereby expressly consent
   thereto, except as otherwise provided in Section 14.3 below; provided, that
   (a) the transferee agree to become bound by the terms of the Stockholders
   Agreement prior to such Transfer and (b) for any Transfer to which this
   Section 14.1 applies as the result of a Company Breach, Bell or the Bell
   Affiliate making such Transfer, provides (x) prior written notice to the
   Company of the existence of a Company Breach, including the grounds upon
   which such claim of a Company Breach is based, (y) if curable under the
   Master Supply Agreement, an opportunity to cure such Company Breach as
   provided in the Master Supply Agreement, and (z) prior written notice of the
   intent to Transfer Shares if such Company Breach is not cure during the cure
   period, if any.

                                      13
<PAGE>

            14.2 Sale to VoIP Service Provider. Notwithstanding anything to the
   contrary in the Stockholders Agreement, if any Person that as a material part
   of its activities in the United States markets, provides or supports Voice
   over Internet Protocol services, and/or any Affiliate(s) of such a Person,
   acquires or holds a majority of the outstanding voting power of the Company
   or ERH, none of the Company, the Company Affiliates and the McCaw Entities
   (including without limitation ERH) will enforce the provisions of Sections 4
   and 5 of the Stockholders Agreement with respect to any Transfer of Company
   Securities by Bell and the Bell Affiliates, and hereby expressly consent
   thereto, except as otherwise provided in Section 14.3 below; provided, that
   the transferee agree to become bound by the terms of the Stockholders
   Agreement prior to such Transfer.

            14.3 Sales by Bell to Company Competitors. Notwithstanding Sections
   14.1 or 14.2 of this Agreement, if Bell and/or the Bell Affiliates desire to
   Transfer all or any part of their Company Securities to any person or entity
   a significant portion of its business consists (or is expected to consist) of
   the provision of fixed wireless broadband services or equipment of the type
   delivered by the Company in the United States, then Section 5.01 of the
   Stockholders Agreement shall apply to such Transfer.

15.   Notice of Certain Potential Transactions. So long as Bell and the Bell
Affiliates own, in the aggregate, directly or indirectly, Company Securities
representing at least 5% of the Voting Shares of the Company, (A) the McCaw
Entities shall provide prompt written notice to Bell each time any of the
following occurs: (i) any of the McCaw Entities receives an offer from, or
enters into material or substantive discussions with, any entity regarding a
possible transaction that, if consummated, would permit such McCaw Entity to
exercise its Drag Along Right on Bell's Shares, but with respect to offers, only
if and at such time as such McCaw Entity enters into material or substantive
discussions with the entity, (ii) the CEO or President of any one of the McCaw
Entities authorizes or intends to seek authority from the board of directors of
any McCaw Entity to authorize any of the McCaw Entities to enter into a sale
process for the purposes of completing a transaction that, if consummated, would
permit any such McCaw Entity to exercise its Drag Along Right on Bell's Shares,
and (B) the Company shall provide prompt written notice to Bell each time any of
the following occurs: (i) the Company receives an offer from, or enters into
material or substantive discussions with, any entity regarding a possible
transaction that, if consummated, would either result in a Change of Control of
the Company or permit any one of the McCaw Entities to exercise its Drag Along
Right on Bell's Shares, but with respect to offers, only if and at such time as
the Company enters into material or substantive discussions with the entity,
(ii) the CEO or President of the Company authorizes or intends to seek authority
from the Board to authorize the Company to enter into a sale process for the
purposes of completing a transaction that, if consummated, would either result
in a Change of Control of the Company or permit any of the McCaw Entities to
exercise its Drag Along Right on Bell's Shares. Following any of notifications
as provided above, subject to the limitations under any confidentiality
agreements entered into with third parties, the Company and/or the McCaw
Entities, as applicable, will provide Bell with a reasonable opportunity to
engage in the process, at Bell's option; provided, that, the foregoing shall not
require the Company and/or the McCaw Entities to delay the acceptance of any
offer beyond any deadline associated with such offer or to otherwise take any
action that would materially prejudice the ability of the Company and/or the
McCaw Entities to enter into the transaction that is the subject of a
notification under this Section 15..

16.   Limitations with Respect to McCaw Entities. Commencing on the date of this
Agreement and continuing thereafter for so long as the McCaw Entities hold a
majority of the voting power of the Company, no McCaw Entity (including without
limitation ERH and Craig O. McCaw, but excluding ICO Global Communications and
the Company) will acquire more than a ten percent (10%) passive equity interest
in any company (excluding ICO Global Communications and the Company) for whom a
significant portion of its business consists (or is expected to consist) of the
provision of fixed wireless broadband services or equipment of the type
delivered by the Company in the United States, unless the applicable McCaw
Entity has first made the opportunity

                                      14
<PAGE>

available to the Company and the Company's independent directors have decided to
direct the Company not to pursue the opportunity.

17. Miscellaneous.

         17.1 Term and Termination. The term of this Agreement shall begin on
   the date of this Agreement and shall terminate on the latest to occur of the
   following: (i) the Master Supply Agreement terminates, or (ii) Bell and the
   Bell Affiliates own no Shares of the Company.

         17.2 Successors and Assignees. Except as otherwise provided in this
   Agreement, the terms and conditions of this Agreement shall inure to the
   benefit of and be binding upon the respective successors and assigns of the
   Parties (including any Permitted Transferees of all or substantially all of
   Bell's or ERH's Shares). As a closing condition to any Transfer of Shares by
   any Party to this Agreement (including, without limitation, any McCaw
   Entity), the transferee of such Shares shall agree in writing to be bound by
   this Agreement and the Stockholders Agreement. In addition, the Company and
   ERH agree that as a condition precedent of any McCaw Entity becoming the
   holder of any Share, it will obtain that such McCaw Entity agrees to be bound
   by this Agreement and the Stockholders Agreement, and Bell agrees that as a
   condition precedent of any Bell Affiliate becoming the holder of any Share,
   it will obtain that such Bell Affiliate agrees to be bound by this Agreement
   and the Stockholders Agreement.

         17.3 Notices. All notices, requests, demands, instructions, documents
   and other communications to be given under this Agreement to any party shall
   be in writing and sent to the address/fax number set forth on the signature
   page below (provided that any party may at any time change its address for
   notice or other such information by giving written notice thereof in writing
   to the other parties hereto).

         17.4 Governing Law. This Agreement shall be governed by and construed
   in accordance with the laws of the State of Delaware.

         17.5 Amendment and Waiver. This Agreement may not be amended or
   modified without the written consent of the Parties. No waiver of any
   provision of this Agreement shall be binding unless and until set forth
   expressly in writing and signed by the waiving party. The waiver by any party
   hereto of a breach of any provision of this Agreement shall not operate or be
   construed as a waiver of any preceding or succeeding breach of the same or
   any other term or provision, or a waiver of any contemporaneous breach of any
   other term or provision, or a continuing waiver of the same or any other term
   or provision. Notwithstanding anything to the contrary in this Agreement or
   the Stockholders Agreement, the Stockholders Agreement shall not be amended
   or modified without the prior written consent of Bell and no waiver of any
   term or provision of the Stockholders Agreement shall be effective against
   Bell without the prior written consent of Bell.

         17.6 Specific Performance. The Parties acknowledge that it will be
   impossible to measure in money the damage to them caused by any failure to
   comply with the covenants set forth in this Agreement, that each such
   covenant is material, and that in the event of any such failure, the injured
   party will not have an adequate remedy at law or in damages. Therefore, the
   Parties consent to the issuance of an injunction or the enforcement of other
   equitable remedies against them at the suit of the other, without bond or
   other security, to compel performance of all of the terms of this Agreement,
   and waive the defense of the availability of relief in damages.

         17.7 Severability. If any provision of this Agreement shall be declared
   void or unenforceable by any judicial or administrative authority, the
   validity of any other provision and of the entire Agreement shall not be
   affected thereby.

                                       15

<PAGE>

         17.8 Enforceability; Conflicts. In all events, the terms and provisions
   of this Agreement shall be enforceable notwithstanding any conflicting term
   or provision set forth in any of the other Transaction Agreements. In the
   event of any conflict between any term or provision of this Agreement and any
   term or provision set forth in any of the other Transaction Agreements, such
   term or provision of this Agreement shall prevail over such term or provision
   set forth in any of the other Transaction Agreements.

         17.9 No Impairment. Each of the Parties hereto agree not to, by
   amendment of the Company's Certificate of Incorporation or Bylaws or through
   any reorganization, recapitalization, transfer of assets, consolidation,
   merger, dissolution, issue, sale or transfer of securities or any other
   voluntary action, avoid or seek to avoid the observance or performance of any
   of the terms of this Agreement, but will at all times in good faith assist in
   the carrying out of all such terms and in the taking of all such action as
   may be necessary or appropriate in order to protect the rights granted herein
   against impairment.

         17.10 Further Assurances. Each of the Parties hereto shall execute and
   deliver all additional documents and instruments and shall do any and all
   acts and things reasonably requested in connection with the performance of
   the obligations undertaken in the Agreement or otherwise to effectuate in
   good faith the intent of the Parties.

         17.11 Counterparts. This Agreement may be executed in counterparts,
   each of which shall be deemed an original, but all of which together shall
   constitute one and the same instrument.

         17.12 Entire Agreement. This Agreement, the Transaction Agreements and
   the documents referred to herein and therein constitute the entire agreement
   among the Parties with respect to the subject matter hereof and thereof and
   no Party shall be liable or bound to any other Party in any manner by any
   warranties, representations, covenants or agreements except as specifically
   set forth herein or therein.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK.]

                                       16
<PAGE>

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

CLEARWIRE CORPORATION                Address:

By: /s/ Ben Wolff                    5808 Lake Washington Boulevard NE, Suite
   -----------------------------     300
Name: Ben Wolff                      Kirkland, WA 98033
Title: Executive Vice President      Attention: Vice President of Legal Affairs

EAGLE RIVER HOLDINGS, LLC            Address:
(f/k/a COM Holdings, LLC)

By: Eagle River, Inc., a Washington
Corporation, its Manager

By: /s/ Ben Wolff
   ----------------------------
Name: Ben Wolff
Title: President

Agreed and Accepted:

BELL CANADA                          Address:
                                     1000, De La Gauchetiere Street West,
By: /s/ J. Trevor Anderson           Suite 3700
   -----------------------------     Montreal, Quebec
Name: J. Trevor Anderson             H3B4Y7
Title: SVP Technology                Attention: Chief Legal Officer, Bell Canada
                                     With copy by e-mail to:
                                     scott.thomson@bell.ca and
                                     michel.lalande@bell.ca

                                SIGNATURE PAGE TO
                             SIDE AGREEMENT BETWEEN
                       BELL CANADA, CLEARWIRE CORPORATION,
                          AND EAGLE RIVER HOLDINGS, LLC<PAGE>

                                                                   EXHIBIT 10.39

                                VENDOR AGREEMENT

Effective Date: September 27, 2005.

THIS VENDOR AGREEMENT (the "Agreement") is made and entered into by and between
Best Buy Purchasing LLC, a Minnesota corporation ("Best Buy"), having its
principal office at 7601 Penn Avenue South, Richfield, Minnesota, 55423, U.S.A.,
and Clearwire LLC, a Nevada limited liability company ("Vendor"), having its
principal office at 5808 Lake Washington Blvd. NE #300, Kirkland, WA 98033.

WHEREAS, This Agreement is intended to set forth the terms and conditions
applicable to the order, shipment and delivery of certain equipment by Vendor to
Best Buy and distribution of such equipment by Best Buy and its designated
affiliates. The parties agree that certain terms of this Agreement are only
applicable to the purchase of goods from Vendor and the marketing and resale of
such goods by Best Buy should the parties at some point agree to such purchase
and resale relationship.

NOW, THEREFORE, in consideration of the mutual covenants herein contained, the
parties hereby agree as follows:

1. LICENSE TO DISTRIBUTE EQUIPMENT

1.1 Appointment of Authorized Dealer. Vendor appoints Best Buy and each of its
affiliates designated to Vendor in writing (collectively, "Dealer") as an
authorized dealer to provide for the Marketing and sale of Vendor Services and
the sale or lease of Equipment through Dealer's Sales Channels in accordance
with the terms and conditions set forth in the Subscription Service Addendum
attached hereto and incorporated herein by this reference (the "SSA").
Capitalized terms not otherwise defined in this Agreement shall have the meaning
ascribed to such terms in the SSA. To the extent of any inconsistency between
the terms of this Agreement and those in the SSA related to the marketing and
sale of Vendor Services, the terms of the SSA shall control. The designated
affiliates will include Best Buy Stores, L.P., and BestBuy.com, Inc., or as
updated from time to time upon notice to and consent of Vendor ("Affiliates").

1.2 Territory. Vendor grants Dealer a non-exclusive license to distribute the
Services and Equipment (collectively "Products"), to Members in the United
States (and its territories) or other geographic areas as mutually agreed in a
writing signed by Vendor and Dealer from time to time through Dealer's Sales
Channels and Selected Dealer Stores all in accordance with the SSA.

2. PRICING AND TAXES

2.1 Prices. Vendor will sell the Products to Dealer at the prices then in effect
on its current price list, as may be changed from time to time, or as otherwise
agreed between the parties. [***] Vendor's prices do not include sales, use,
excise, or similar taxes.

2.2 Taxes. The amount of any valid present or future sales, use, excise, or
other similar tax that is attributable to purchase or delivery of the Products
will be paid by Dealer; or in lieu thereof, Dealer will provide Vendor with a
tax exemption certificate acceptable to the taxing authorities.

2.3 No Minimum Purchase Requirement. Dealer shall have no obligation or
liability to purchase or distribute all or any particular volume of any type of
Products or parts from the Vendor; and (ii) Dealer does not guarantee, and is
not obligated to issue, any particular number or type of purchase orders with
the Vendor. Dealer shall not be liable to the Vendor for loss of business or
revenues, or excess inventory, if Dealer's distribution of the Products does not
meet the Vendor's expectations.

3. PURCHASE ORDERS

Orders for Vendor's Products will be initiated by Dealer no later than ten (10)
days before the shipment date by electronic purchase orders submitted by Dealer
and will govern the shipment and delivery of Products upon acceptance by Vendor,
provided that Dealer reserves the right to cancel a purchase order at any time
prior to the shipment date. Vendor will be deemed to have accepted a purchase
order if Vendor fails to reject the purchase order by notifying Dealer within
forty-eight (48) hours of its receipt thereof, not including weekends and
nationally recognized holidays. Dealer will use commercially reasonable efforts
to provide Vendor with periodic forecasts of Dealer's anticipated inventory
requirements for Product.

4. PAYMENT

4.1 Invoices. All Vendor invoices or other evidence of Dealer's orders will be
sent via Electronic Data Interchange (EDI) to Dealer no earlier than the Product
shipment date in connection with each accepted and fulfilled purchase order.
Dealer will pay amounts due in each such invoice pursuant to the credit terms
established by the parties, which will be set forth in the SSA attached as an
addendum hereto, as further described in Section 10. The designated credit term
will commence on the later of (a) the date Dealer receives Products at the FOB
point specified in Section 5, or (b) the date Dealer is authorized to resell the
applicable Products, i.e. the "street date." Payment will not be considered late
by Vendor for purposes of calculating early payment discounts if payment is sent
by Dealer within one (1) week of the due

[*** Confidential Treatment Requested]

<PAGE>

date or if payment is delayed because of an EDI communication failure or due to
an indebtedness of Vendor to Dealer. No interest or other charges will be
payable by Dealer upon this Agreement, or any resulting invoice, whether claimed
by reason of late payment or otherwise. All transactions will be valued and paid
in United States currency.

4.2 [***]

4.3 Statement of Account. From time to time upon request by Dealer, Vendor will
provide a complete statement of account that will include but not be limited to
unpaid invoices and disputed deductions. Such statement of account will also
disclose all credit memos issued and outstanding. The statement of account will
be forwarded by electronic mail in spreadsheet format or by regular mail per
Dealer's instructions. Statements for merchandising/inventory accounts will be
separate from any statement of account for parts purchased by Dealer for Product
service and out-of-warranty repairs.

4.4 Debit Balances. If Vendor is indebted to Dealer but there is no outstanding
balance due to Vendor, Vendor will pay the amount due to Dealer via check or
wire transfer in full within thirty (30) days of receipt of notification thereof
from Dealer. Dealer reserves the right to charge Vendor interest at the rate of
1.5% per month for any debit balance not paid within such time. If the amount in
question is disputed, the parties agree to work in good faith to reconcile the
matter so that payment to Dealer of any undisputed amount will be made within
sixty (60) days of Dealer's original notice to Vendor. In no event will Dealer
be obligated to take a credit against future purchases.

5. SHIPPING

5.1 Shipping Terms: The parties hereby agree to the ground shipment terms
selected below:

[X]   FOB Destination, Freight Prepaid by Vendor. Vendor will be responsible for
      carrier selection and routing instructions. Vendor will pay all costs and
      expenses incurred prior to the FOB point, including without limitation,
      insurance, freight, and any notification, sort and segregation charges.
      Unless otherwise agreed, title remains with Vendor and Title risk of loss
      passes to Dealer upon delivery at the destination specified by Dealer,
      which may include but is not limited to its stores, distribution centers,
      and third-party fulfillment providers. Vendor is encouraged to utilize
      Dealer's preferred carriers to improve on-time performance, minimize
      transit times and reduce the need for expedited shipments.

[ ]   FOB Origin, Freight Collect and Allowed. Dealer will be responsible for
      carrier selection, routing instructions and pick-up appointments at
      Vendor's domestic origin facility. In addition, Dealer is responsible for
      carrier freight payments, submitting freight claims for loss and damage,
      scheduling appointments at destination, and tracking and tracing freight
      in transit. Title and risk of loss passes upon delivery at Vendor's
      domestic origin shipping dock. Vendor agrees to have Products in
      ship-ready condition on the ship date specified in the applicable purchase
      order and provide forty-eight (48) hour notice of pick-up request to
      Dealer. The attached Collaborative Transportation Agreement, as amended
      from time to time by the parties, if applicable, contains additional terms
      that define the parties' responsibilities under this shipping arrangement.

5.2 Time is of the Essence. TIME IS OF THE ESSENCE OF THIS AGREEMENT WITH
RESPECT TO THE SPECIFIED DATES FOR SHIPMENT OF PRODUCT.

5.3 Expedited Shipments. Vendor will pay any additional freight expenses
incurred in connection with an expedited shipment arising from a shipment delay
or other cause attributable to Vendor.

5.4 Other Charges. Any charges related to special requests of Vendor to carrier,
including loading assistance, detention, or any other instructions, prior to
title passage, will be the responsibility of the Vendor.

5.5 Direct Import Addendum. Terms relating to Products that are imported by
Dealer, if applicable, are set forth in the attached Direct Import Addendum,
which is incorporated herein by reference.

6. PRICE PROTECTION; NOTICE OF PRICE INCREASES. The parties agree and
acknowledge that this Section 6 is applicable only to Products purchased by
Dealer from Vendor.

6.1 Price Protection. [***] Dealer will submit a cost adjustment claim to Vendor
that is supported by documentation that reflects Dealer's inventory records of
Product subject to price protection credit.

[*** Confidential Treatment Requested]

<PAGE>

6.2 Notice of Price Increases. Except as otherwise agreed, Vendor will give
Dealer ninety (90) days prior written notice to Dealer of the effective date of
any price increases. A price increase will not affect Dealer's cost on a
purchase order accepted by Vendor prior to the effective date of such price
increase.

7. RETURNS

7.1 Return Rights. Dealer will have the right to return for full credit or
refund of Dealer's cost any Products (a) against which an allegation is made
that the use of such Products infringes on any patent, trademark, trade secret,
copyright, right of privacy or publicity, or any other tangible or intangible
proprietary or intellectual property right; (b) that are not manufactured,
packaged, or labeled in accordance with industry standards and/or all applicable
laws, ordinances, rules, and regulations; (c) that are shipped in error or in
non-conformance with Dealer's purchase order; (d) that have caused injury to
person or property; and (e) that are damaged or Defective. Returned Products
will be shipped FOB Origin, Freight Collect from Dealer's product return center,
distribution center or stores, as the case may be.

7.2 Defective Products. For purposes of this Agreement, a "Defective" Product
means any Product that is visually or operationally defective and Product that
has been returned by a customer in accordance with Dealer's end-user return
policy. Dealer's end-user return policy allows for the return of most Products
with or without cause for a specified period after purchase, regardless of
whether the Product packaging has been opened or whether the Product is actually
defective. Dealer will promptly notify Vendor upon Dealer's discovery of any
Defective Product.

7.3 Return Procedures. If a Vendor Return Authorization is first required by
either party prior to Dealer's return of Product to Vendor, Vendor agrees to
provide a unique Return Authorization number to Dealer within forty-eight (48)
hours of Dealer's request. Vendor will allow delivery of return Product as of
the day the Return Authorization is issued to Dealer. If Vendor requires that
Dealer make an appointment to deliver returned Product, such appointment will be
provided by Vendor within three (3) days of the carrier's expected arrival time.
Upon shipment of the return Product to Vendor, Dealer will send a Return Goods
Memo (debit memo) to Vendor that references the corresponding Return
Authorization number, if any, along with quantity and dollar amounts on a per
unit basis. Dealer may thereafter deduct the total dollar amount of the return
Product from Vendor's invoice. Vendor agrees to send a credit memo to Dealer for
the amount specified in the Return Goods Memo within ninety (90) days of the
date of Dealer's deduction. Such credit memo will reference either Dealer's
Return Goods Memo number or the Return Authorization number. Product returned to
Vendor will be delivered in their original, undamaged containers, provided that
Vendor will not consider a container with a removed UPC to be damaged for
purposes of calculating the return credit if such UPC was removed by an end-user
in connection with a Vendor-sponsored rebate offer. In the event Dealer
rightfully requests a return of Products under this Agreement and Vendor fails
to timely provide a Return Authorization or accept delivery thereof, Dealer may
take any action in its sole and reasonable discretion at Vendor's expense, which
may include but is not limited to storage, liquidation or destruction of the
Products. If Vendor receives Product from Dealer that Vendor believes is
non-returnable, Vendor will return such Product to Dealer's originating Product
returns location within ninety (90) days of Vendor's determination and the
shipment cartons will reference the original return shipment's Return
Authorization number or Return Goods Memo number.

7.4 Additional Return Rights. Additional or different return rights may be
specified in a Vendor Program Agreement (e.g., stock-balancing, defective
allowances) as further described in Section 10. If the parties agree to a
defective allowance, such allowance will replace Dealer's right to return
Defective Products as provided herein, except that if the actual defective rate
for a particular Product exceeds the applicable allowance, Dealer may either
adjust the allowance accordingly or return the excess Defective Product to
Vendor for full credit or refund. A defective allowance will have no effect upon
Dealer's return rights as otherwise provided in this Agreement.

7.5 Warranty Returns; Appointment of Authorized Return Center. Vendor appoints
Dealer as an "Authorized Return Center" for the return by end-users of those
Products under a manufacturer's warranty. Except as may otherwise be agreed in a
comprehensive Product Service Agreement, which will be an addendum hereto as
further described in Section 11, Dealer will (a) receive the in-warranty Product
from the end-user, (b) provide the end-user with an in-store credit ("In-Store
Credit"), and (c) send the end-user's defective Product to Vendor after
receiving Vendor's return authorization, if required. The appointment of Dealer
as an Authorized Return Center is non-exclusive and will include all present and
future Dealer locations which Dealer designates to accept the Product returns.
This appointment of Dealer as an Authorized Return Center will survive the
expiration or termination of this Agreement to the extent necessary to satisfy
end-user warranty requests.

8. DISCONTINUED PRODUCT. The parties agree and acknowledge that this Section 8
is applicable only to Products purchased by Dealer from Vendor.

A "Discontinued Product" means any Product that Vendor has stopped manufacturing
or any Product that undergoes a material change in appearance or packaging.
Vendor agrees to provide Dealer with at least ninety (90) days advance written
notice of the occurrence of a Discontinued Product, or as soon as possible in
the event that the discontinuance is caused by actions taken by a component part
supplier of Vendor. Upon notice of such Discontinued Product, Dealer may,
without penalty or liability, cancel any outstanding purchase orders pertaining
to the Discontinued Product. With respect to Dealer's existing inventory of
Discontinued Product, Dealer may, in its sole discretion, either return such
Discontinued Product at any time to Vendor for full credit or refund, or Vendor
and Dealer will negotiate a cost markdown of such existing inventory.

<PAGE>

9. VENDOR PERFORMANCE AND OPERATIONS STANDARDS

Other terms that are relevant to doing business with a particular operating
division of Dealer or Affiliate may be found in the Vendor Performance and
Operations Standards, which is a part of this Agreement and incorporated herein
by reference. The Vendor Performance and Operations Standards may be accessed at
Dealer's Vendor Extranet web site, www.extendingthereach.com The Vendor
Performance and Operations Standards may include but is not limited to
information concerning Electronic Data Interchange (EDI), Returns Procedures,
Routing and Shipping Guides and the Shipping Performance Management Program, all
of which may be updated from time to time by Dealer upon notice to Vendor. The
terms and conditions of this Agreement shall govern in the event of any
inconsistency.

10. VENDOR PROGRAM AGREEMENT

Dealer and Vendor may agree upon certain terms from time to time concerning
matters such as Products, pricing, market development/cooperative
advertising/merchandising funds, invoice credit terms, stock rotation, volume
rebates, new store allowances, and the like. Such terms will be contained in the
SSA, which will be considered an addendum hereto, as amended from time to time
by the parties. In the event of conflict between business terms of the SSA, as
it may be amended from time to time and this Agreement, the business terms
contained in the SSA will control.

11. PRODUCT SERVICE AND WARRANTY REPAIRS

Dealer is committed to meeting its customers' high expectations concerning
post-sale service and warranty repairs. A comprehensive Product Service
Agreement between the parties may be necessary to ensure customer satisfaction.
If applicable, the attached Product Service Agreement controls the servicing and
warranty repairs of the Products and will be executed by both parties prior to
or simultaneous with the execution of this Agreement.

12. RESERVED

13. CONFIDENTIALITY

This Agreement and any information marked as confidential or, regardless of form
(written/electronic/oral) or marking, is of the nature that a reasonable person
would understand its owner would not want it disclosed to the public will be
considered to be Confidential Information and shall be governed by the terms of
the non-disclosure and confidentiality agreement executed by the parties, dated
August 30, 2005, a copy of which is attached hereto and incorporated herein by
this reference.

14. ADDITIONAL OBLIGATIONS OF VENDOR

14.1 Product Materials. Vendor will provide to Dealer, at no charge, Product
samples, adequate copies of any marketing and technical information, service
manuals, detailed Product specifications, end-user warranties and other Product
data and materials.

14.2 Training. Vendor will assist with the training of Dealer personnel on
Dealer's premises as reasonably necessary to ensure that Dealer's sales and
service personnel will be adequately knowledgeable with respect to the Products.

14.3 Compliance with Laws. Vendor will notify Dealer within ten (10) days
regarding the existence and nature of Vendor's knowledge of any possible
material non-compliance with applicable laws, or its notice of a claim from a
consumer (which, individually or in the aggregate, may reasonably be expected to
result in material liability to Vendor and/or Dealer) that a Product is
defective or does not comply with all applicable laws.

15. REPRESENTATIONS AND WARRANTIES

15.1 Vendor's Representations and Warranties. Vendor represents and warrants to
Dealer that (a) it has the authority to enter into this Agreement and to make
the Products available to Dealer for distribution in accordance with the SSA and
Equipment Agreement, free and clear of all liens, charges, encumbrances, or
other restrictions, and that the persons signing this Agreement on behalf of
Vendor are authorized to sign; (b) it will comply with all applicable federal,
state, and local laws and regulations in performing its obligations under this
Agreement, including but not limited to laws and regulations pertaining to
product design, manufacture, packaging and labeling and, if applicable,
importation and the Foreign Corrupt Practices Act; and (c) the Products are not
produced, manufactured, assembled or packaged by the use of forced labor, prison
labor or forced or illegal child labor and that the Products were not
trans-shipped for the purpose of mislabeling, evading quota or country of origin
restrictions or for the purpose of avoiding compliance with forced labor, prison
labor or child labor laws.

15.2 Dealer's Representations and Warranties. Dealer represents and warrants to
Vendor that (a) it has the authority to enter into this Agreement, and that the
persons signing this Agreement on behalf of Dealer are authorized to sign; (b)
it will comply with all applicable federal, state, and local laws; and (c) it
will exert commercially reasonable efforts to promote and distribute the
Products consistent with Dealer's obligations under the SSA and Equipment
Agreement.

<PAGE>

16. TERM AND TERMINATION

16.1 Term. This Agreement will commence on the Effective Date and will continue
until expiration or termination of the SSA and will automatically renew on the
same terms applicable to the SSA.

16.2 Events on Termination.

     (a) [***]

     (b) For Cause. Upon termination of this Agreement for cause, the parties
will agree to either (i) completion by Dealer of sell-through of the remaining
Product inventory; or (ii) return of the remaining Product inventory to Vendor
at the breaching party's expense, and Dealer will receive a refund of any
purchase price at Dealer's cost for all returned Products.

17. INDEMNIFICATION

Vendor will indemnify, defend, and hold Dealer, its parent, affiliates, agents
and employees, harmless from and against any and all claims, actions,
liabilities, losses, costs and expenses arising from or in connection with [***]
Vendor agrees to pay all costs of liability, settlement and defense, including
attorney fees and costs.

Dealer will indemnify, defend, and hold Vendor, its parent, affiliates, agents
and employees, harmless from and against any and all claims, actions,
liabilities, losses, costs and expenses arising from or in connection with [***]
Vendor agrees to give Dealer prompt written notice of any claims, to tender the
defense to Dealer, and to grant Dealer the right to control settlement and
resolution. Dealer agrees to pay all costs of liability, settlement and defense,
including attorney fees and costs.

18. INSURANCE

18.1 Comprehensive / Commercial General Liability. Vendor will procure and
maintain throughout the term of this Agreement a policy of comprehensive general
or commercial general liability insurance with a combined single limit of not
less than one million dollars ($1,000,000) for each occurrence.

18.2 Workers Compensation; Automobile Liability. If Vendor's agents will be
entering Dealer's premises, Vendor will procure and maintain throughout the term
of this Agreement: (a) Workers Compensation insurance in an amount not less than
the statutory limits and (b) automobile liability insurance with a combined
single limit of not less than one million dollars ($1,000,000) for each
occurrence for personal injury, including death, and property damage.

18.3 Umbrella Coverage. Vendor will procure and maintain throughout the term of
this Agreement Umbrella coverage of not less than ten million dollars
($10,000,000).

18.4 Requirements. Vendor will supply Dealer with a Certificate of Insurance
with respect to each of the foregoing policies, except Workers Compensation,
that names BEST BUY CO., INC., ITS SUBSIDIARIES & AFFILIATES as an Additional
Insured, and which also provides that such insurance will not be canceled or
changed unless at least thirty (30) days prior written notice has been given to
Dealer. The insurance required hereunder will be issued by an insurance company
or companies authorized to do business in the United States. Vendor's insurance
will be primary and required to respond to and pay claims prior to other
coverage.

19. ASSIGNMENT

19.1 Assignment. This Agreement may not be assigned by either party without
first obtaining the other party's express written consent, which consent will
not be unreasonably withheld except in conjunction with a permitted assignment
of the SSA and Equipment Agreement.

[*** Confidential Treatment Requested]

<PAGE>

19.2 Assignment of Accounts Receivable. If Vendor assigns payments to an
assignee/factor, Vendor understands and agrees that Vendor and the
assignee/factor will be required to sign Dealer's standard acknowledgment form
to assure Dealer that the assignee/factor understands the rights and obligations
being assigned, including the right of Dealer to make offsets.

20. AUDIT RIGHTS; CLAIMS

20.1 Audit Rights. Upon reasonable prior written notice and at reasonable times
during regular business hours, each party will have the right to audit the other
party's books and records to assure compliance with the terms and conditions of
this Agreement. If the audit reveals that a party is not performing in material
compliance with the terms of this Agreement, then, in addition to any other
legal and equitable rights and remedies available, the party not in compliance
will reimburse the other for the reasonable costs of the audit.

20.2 Claims. Except as otherwise provided in this Agreement, claims by either
party, however asserted, will be commenced within two (2) years from the date
the cause of action accrues.

21. CONFLICT OF INTEREST AND CODE OF CONDUCT POLICIES

Vendor agrees to respect and abide by Dealer's conflict of interest and code of
conduct policies, which are available at www.extendingthereach.com and may be
amended from time to time by Dealer. Vendor should contact Dealer's email
hotline at vendor.relations@bestbuy.com for information concerning Dealer's
policies and to discuss any ethical or conduct concerns that they may have as a
result of their contact with Dealer personnel. Vendor understands and
acknowledges that Dealer's conflict of interest and code of conduct policies
address Vendor-paid travel, gifts and gratuities, offering and accepting bribes,
family members and close personal relationships involving employees of both
parties, personal investments in the other party, Vendor-sponsored charitable
and other events, Vendor product samples, Vendor promotional copies, direct
personal purchases from Vendors by Dealer employees, and awards, incentives and
other spiffs from vendors. Vendor agrees to avoid conflict of interest
situations with Dealer and to deal at arms length with Dealer. Dealer similarly
agrees to abide by Vendor's policies concerning these subject matters.

22. FORCE MAJEURE

Neither party will be in breach of this Agreement solely due to causes beyond
the control and without the fault or negligence of such party. Such causes may
include, but are not restricted to, acts of God or of a public enemy, acts of
the government in either its sovereign or contractual capacity, fires, floods,
epidemics, quarantine restrictions, strikes, freight embargoes, power failure,
or failure of the U.S. postal system, but in every case the failure to perform
will be beyond the control and without fault or negligence of the party failing
to perform. Each party will inform the other of any Force Majeure event within
five (5) business days of its occurrence.

23. NOTICES

All notices, requests, demands and other communications that are required or may
be given under this Agreement will be in writing and will be deemed to have been
duly given if hand-delivered or mailed by either registered or certified mail,
return receipt requested, or by a nationally recognized overnight courier
service, receipt confirmed. In the case of notices via first-class mail or
courier service, notices will be deemed effective upon the date of receipt.
Notices will be addressed to the parties as set forth below, unless either party
notifies the other of a change of address, in which case the latest noticed
address will be used:

<TABLE>
<CAPTION>
Notices To Vendor:                       Notices To Dealer:
------------------                       ------------------
<S>                                      <C>
Clearwire LLC                            Best Buy Purchasing LLC
5808 Lake Washington Blvd., Suite 300    7601 Penn Avenue South
Kirkland, WA 98033                       Richfield, MN 55423-3645
Attn: Chief Operations Officer           Attn: Senior Vice President, Merchandising
Copy to: Legal Department                Copy To: Manager, Vendor Relations
                                         Copy To: General Counsel, Legal Department
</TABLE>

24. GENERAL

24.1 Relationship of the Parties. The relationship between the parties will be
that of independent contractor. Nothing herein will be construed as creating or
constituting the relationship of employer/employee, franchiser/franchisee,
principal/agent, partnership, or joint venture between the parties.

24.2 Governing Law; Jurisdiction. This Agreement will be governed by and
interpreted under the laws of the State of New York.

24.3 Enforceability. If any provision of this Agreement is held to be
unenforceable by a court of competent jurisdiction, such provision will be more
narrowly and equitably construed so that it becomes legal and enforceable, and
the entire Agreement will not fail on account thereof and the balance of the
Agreement will continue in full force and effect.

<PAGE>

24.4 No Waiver. Any of the provisions of this Agreement may be waived by the
party entitled to the benefit thereof. Neither party will be deemed, by any act
or omission, to have waived any of its right or remedies hereunder unless such
waiver is in writing and signed by the waiving party, and then only to the
extent specifically set forth in such writing. A waiver with reference to one
event will not be construed as continuing or as a bar to or waiver of any other
right or remedy, or as to a subsequent event.

24.5 Counterparts and Electronics Signature. This Agreement may be executed in
one or more counterparts, each of which will be deemed an original but all of
which together will constitute one and the same instrument. This Agreement may
be executed by facsimile or other "electronic signature" (as defined in the
Electronic Signatures in Global and National Commerce Act of 2000) in a manner
agreed upon by the parties hereto.

24.6 Entire Agreement; Amendments. This Agreement, including any addenda or
exhibits attached hereto, contains the entire Agreement between the parties with
respect to the subject matter hereof, supersedes all prior agreements,
negotiations and oral understandings, if any, and may not be amended,
supplemented, or modified in any way, except by an amendment in writing and
signed by authorized representatives of the parties hereto. No amendment will be
effected by the acknowledgement or acceptance of a purchase order, invoice, or
other forms stipulating additional or different terms. This Agreement will inure
to the benefit of and be binding upon each of the parties and their respective
successors, assigns, heirs, executors, administrators, trustees and legal
representatives.

24.7 Reservation of Rights. Duties and obligations imposed by this Agreement and
rights and remedies available hereunder will be in addition to and not a
limitation of duties, obligations, rights and remedies otherwise imposed or
available by law except as otherwise provided herein. When Dealer has exercised
the right to reject a nonconforming shipment or elected to return Product to
Vendor as provided herein, Vendor will not have the right to cure improper
tender which might otherwise be available under law.

24.8 Headings. Headings used in this Agreement are for the purposes of
convenience only and will not affect the legal interpretation of this Agreement.

24.9 Draftsmanship. Each of the parties hereto has been represented by its own
counsel. In the event of a dispute, no provision of this Agreement will be
construed in favor of one party and against the other by reason of the
draftsmanship of this Agreement.

24.10 Survival. The expiration or termination of this Agreement will not
terminate vested rights of either party from any liabilities or obligations
incurred under this Agreement prior to or which by their nature are intended to
survive expiration or termination, including but not limited to provisions
relating to confidentiality, warranties, indemnification, returns, and
proprietary rights.

ADDENDA (CHECK IF APPLICABLE)

Each checked Addendum is hereby incorporated into and made a part of this
Agreement:

    [ ]  Vendor Program Agreement           [ ]  Configure to Order Agreement

    [X]  Subscription Service Addendum      [X]  Equipment Agreement

    [X]  Certificate of Insurance           [ ]  Collaborative Transportation
                                                 Agreement

    [X]  Vendor Performance and Operations  [ ]  Direct Import Addendum
         Standards (available at
         www.extendingthereach.com)

IN WITNESS WHEREOF, this Agreement is made effective as of the date first
written above.

BEST BUY PURCHASING LLC                   VENDOR: Clearwire LLC
(on behalf of its Affiliates)

Authorized Officer: /s/ Daniel Moe        Authorized Officer: /s/ Ben  Wolff
                    ------------------                        ----------------
                      (Signature)                              (Signature)
Name: Daniel Moe                          Name: BEN WOLFF
      (Please Print)                             (Please Print)
Title:   VP. Vendor Mgmt                  Title: Executive Vice President

Date: 10.5.05                             Date: 10-3-05

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