Document:

Exhibit 4.4

                                                                  EXECUTION COPY

                                   $75,000,000

                               AXTEL, S.A. de C.V.

                            11% Senior Notes due 2013

                          REGISTRATION RIGHTS AGREEMENT

                                                                January 13, 2005

CREDIT SUISSE FIRST BOSTON LLC
    Eleven Madison Avenue
      New York, NY 10010-3629

Dear Sirs:

     Axtel, S.A. de C.V., a Mexican corporation (the "Issuer"), proposes to
issue and sell to Credit Suisse First Boston LLC, (the "Initial Purchaser"),
upon the terms set forth in a purchase agreement of even date herewith (the
"Purchase Agreement"), $75,000,000 aggregate principal amount of its 11% Senior
Notes due 2013 (the "Initial Securities") to be unconditionally guaranteed (the
"Guaranties") on a senior unsecured basis by each of the Issuer's subsidiaries
set forth on Schedule A to the Purchase Agreement (the "Guarantors" and together
with the Issuer, the "Company"). The Initial Securities will be issued as
additional securities pursuant to an Indenture, dated as of December 16, 2003,
(the "Indenture") among the Company, the Guarantors named therein and The Bank
of New York (the "Trustee"). As an inducement to the Initial Purchaser, the
Company agrees with the Initial Purchaser, for the benefit of the holders of the
Initial Securities (including, without limitation, the Initial Purchaser), the
Exchange Securities (as defined below) and the Private Exchange Securities (as
defined below) (collectively the "Holders"), as follows:

     1. Registered Exchange Offer. The Company shall, at its own cost, prepare
and file with the Securities and Exchange Commission (the "Commission") a
registration statement (the "Exchange Offer Registration Statement") on an
appropriate form under the Securities Act of 1933, as amended (the "Securities
Act"), with respect to a proposed offer (the "Registered Exchange Offer") to the
Holders of Transfer Restricted Securities (as defined in Section 6 hereof), who
are not prohibited by any law or policy of the Commission from participating in
the Registered Exchange Offer, to issue and deliver to such Holders, in exchange
for the Initial Securities, a like aggregate principal amount of debt securities
(the "Exchange Securities") of the Company issued under the Indenture and
identical in all material respects to the Initial Securities (except for the
transfer restrictions relating to the Initial Securities and the provisions
relating to the matters described in Section 6 hereof) that would be registered
under the Securities Act. The Company shall use its reasonable best efforts to
cause such Exchange Offer Registration Statement to become effective under the
Securities Act within 210 days (or if the 210th day is not a business day, the
first business day thereafter) after the date of original issue of the Initial
Securities (the "Issue Date") and shall keep the Exchange Offer Registration
Statement effective for not less than 30 days (or longer, if required by
applicable law) after the date notice of the Registered Exchange Offer is mailed
to the Holders (such period being called the "Exchange Offer Registration
Period"). The Company will take all actions that are necessary under the
applicable laws of Mexico in order to carry out and consummate the Registered
Exchange Offer, including, without limitation, the filing of documents and the
registration of the Exchange Securities in the Special Section (Seccion
Especial) of Mexico's National Securities Registry (Registro Nacional de
Valores) of the National Banking and Securities Commission (Comision Nacional
Bancaria y de Valores).

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     If the Company effects the Registered Exchange Offer, the Company will be
entitled to close the Registered Exchange Offer 30 days after the commencement
thereof provided that the Company has accepted all the Initial Securities
theretofore validly tendered in accordance with the terms of the Registered
Exchange Offer.

     Following the declaration of the effectiveness of the Exchange Offer
Registration Statement, the Company shall promptly commence the Registered
Exchange Offer, it being the objective of such Registered Exchange Offer to
enable each Holder of Transfer Restricted Securities (as defined in Section 6
hereof) electing to exchange the Initial Securities for Exchange Securities
(assuming that such Holder is not an affiliate of the Company within the meaning
of the Securities Act, acquires the Exchange Securities in the ordinary course
of such Holder's business and has no arrangements with any person to participate
in the distribution of the Exchange Securities and is not prohibited by any law
or policy of the Commission from participating in the Registered Exchange Offer)
to trade such Exchange Securities from and after their receipt without any
limitations or restrictions under the Securities Act and without material
restrictions under the securities laws of the several states of the United
States.

     The Company acknowledges that, pursuant to current interpretations by the
Commission's staff of Section 5 of the Securities Act, in the absence of an
applicable exemption therefrom, (i) each Holder which is a broker-dealer
electing to exchange Securities, acquired for its own account as a result of
market making activities or other trading activities, for Exchange Securities
(an "Exchanging Dealer"), is required to deliver a prospectus containing the
information set forth in (a) Annex A hereto on the cover, (b) Annex B hereto in
the "Exchange Offer Procedures" section and the "Purpose of the Exchange Offer"
section, and (c) Annex C hereto in the "Plan of Distribution" section of such
prospectus in connection with a sale of any such Exchange Securities received by
such Exchanging Dealer pursuant to the Registered Exchange Offer and (ii) if the
Initial Purchaser elects to sell Exchange Securities acquired in exchange for
Securities constituting any portion of an unsold allotment will be required to
deliver a prospectus containing the information required by Items 507 or 508 of
Regulation S-K under the Securities Act, as applicable, in connection with such
sale.

     The Company shall use its reasonable best efforts to keep the Exchange
Offer Registration Statement effective and to amend and supplement the
prospectus contained therein, in order to permit such prospectus to be lawfully
delivered by all persons subject to the prospectus delivery requirements of the
Securities Act for such period of time as such persons must comply with such
requirements in order to resell the Exchange Securities; provided, however, that
(i) in the case where such prospectus and any amendment or supplement thereto
must be delivered by an Exchanging Dealer or the Initial Purchaser, such period
shall be the lesser of 180 days and the date on which all Exchanging Dealers and
the Initial Purchaser have sold all Exchange Securities held by them (unless
such period is extended pursuant to Section 3(j) below) and (ii) the Company
shall make such prospectus and any amendment or supplement thereto, available to
any broker-dealer for use in connection with any resale of any Exchange
Securities for a period of not less than 90 days after the consummation of the
Registered Exchange Offer.

     If, upon consummation of the Registered Exchange Offer, the Initial
Purchaser holds Initial Securities acquired by it as part of its initial
distribution, the Company, simultaneously with the delivery of the Exchange
Securities pursuant to the Registered Exchange Offer, shall issue and deliver to
the Initial Purchaser upon the written request of the Initial Purchaser, in
exchange (the "Private Exchange") for the Initial Securities held by the Initial
Purchaser, a like principal amount of debt securities of the Company issued
under the Indenture and identical in all material respects (including the
existence of restrictions on transfer under the Securities Act and the
securities laws of the several states of the United States, but excluding
provisions relating to the matters described in Section 6 hereof) to the Initial
Securities (the "Private Exchange Securities"). The Initial Securities, the
Exchange Securities and the Private Exchange Securities are herein collectively
called the "Securities".

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<PAGE>

     In connection with the Registered Exchange Offer, the Company shall:

          (a) mail to each Holder a copy of the prospectus forming part of the
     Exchange Offer Registration Statement, together with an appropriate letter
     of transmittal and related documents;

          (b) keep the Registered Exchange Offer open for not less than 30 days
     (or longer, if required by applicable law) after the date notice thereof is
     mailed to the Holders;

          (c) utilize the services of a depositary for the Registered Exchange
     Offer with an address in the Borough of Manhattan, The City of New York,
     which may be the Trustee or an affiliate of the Trustee;

          (d) permit Holders to withdraw tendered Securities at any time prior
     to the close of business, New York time, on the last business day on which
     the Registered Exchange Offer shall remain open; and

          (e) otherwise comply with all applicable laws.

     As soon as practicable after the close of the Registered Exchange Offer or
the Private Exchange, as the case may be, the Company shall:

          (x) accept for exchange all the Securities validly tendered and not
     withdrawn pursuant to the Registered Exchange Offer and the Private
     Exchange;

          (y) deliver to the Trustee for cancellation all the Initial Securities
     so accepted for exchange; and

          (z) cause the Trustee to authenticate and deliver promptly to each
     Holder of the Initial Securities, Exchange Securities or Private Exchange
     Securities, as the case may be, equal in principal amount to the Initial
     Securities of such Holder so accepted for exchange.

     The Indenture will provide that the Exchange Securities will not be subject
to the transfer restrictions set forth in the Indenture and that all the
Securities will vote and consent together on all matters as one class and that
none of the Securities will have the right to vote or consent as a class
separate from one another on any matter.

     To the extent applicable, interest on each Exchange Security and Private
Exchange Security issued pursuant to the Registered Exchange Offer and in the
Private Exchange will accrue from the last interest payment date on which
interest was paid on the Initial Securities surrendered in exchange therefor or,
if no interest has been paid on the Initial Securities, from the date of
original issue of the Initial Securities.

     Each Holder participating in the Registered Exchange Offer shall be
required to represent to the Company that at the time of the consummation of the
Registered Exchange Offer (i) any Exchange Securities received by such Holder
will be acquired in the ordinary course of business, (ii) such Holder will have
no arrangements or understanding with any person to participate in the
distribution of the Securities or the Exchange Securities within the meaning of
the Securities Act, (iii) such Holder is not an "affiliate," as defined in Rule
405 of the Securities Act, of the Company or if it is an affiliate, such Holder
will comply with the registration and prospectus delivery requirements of the
Securities Act to the extent applicable, (iv) if such Holder is not a
broker-dealer, that it is not engaged in, and does not intend to engage in, the

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<PAGE>

distribution of the Exchange Securities and (v) if such Holder is a
broker-dealer, that it will receive Exchange Securities for its own account in
exchange for Initial Securities that were acquired as a result of market-making
activities or other trading activities and that it will be required to
acknowledge that it will deliver a prospectus in connection with any resale of
such Exchange Securities.

     Notwithstanding any other provisions hereof, the Company will ensure that
(i) any Exchange Offer Registration Statement and any amendment thereto and any
prospectus forming part thereof and any supplement thereto complies in all
material respects with the Securities Act and the rules and regulations
thereunder, (ii) any Exchange Offer Registration Statement and any amendment
thereto does not, when it becomes effective, contain an untrue statement of a
material fact or omit to state a material fact required to be stated therein or
necessary to make the statements therein not misleading and (iii) any prospectus
forming part of any Exchange Offer Registration Statement, and any supplement to
such prospectus, does not include an untrue statement of a material fact or omit
to state a material fact required to be stated therein or necessary in order to
make the statements therein, in the light of the circumstances under which they
were made, not misleading.

     2. Shelf Registration. If, (i) because of any change in law or in
applicable interpretations thereof by the staff of the Commission, the Company
is not permitted to effect a Registered Exchange Offer, as contemplated by
Section 1 hereof, (ii) the Registered Exchange Offer is not consummated within
240 days of the Issue Date, (iii) the Initial Purchaser so requests with respect
to the Initial Securities (or the Private Exchange Securities) not eligible to
be exchanged for Exchange Securities in the Registered Exchange Offer and held
by it following consummation of the Registered Exchange Offer or (iv) any Holder
(other than an Exchanging Dealer) is not eligible to participate in the
Registered Exchange Offer or, in the case of any Holder (other than an
Exchanging Dealer) that participates in the Registered Exchange Offer, such
Holder does not receive freely tradable Exchange Securities on the date of the
exchange, the Company shall take the following actions:

          (a) The Company shall, at its cost, as promptly as practicable file
     with the Commission and thereafter shall use its reasonable best efforts to
     cause to be declared effective a registration statement (the "Shelf
     Registration Statement" and, together with the Exchange Offer Registration
     Statement, a "Registration Statement") on an appropriate form under the
     Securities Act relating to the offer and sale of the Transfer Restricted
     Securities (as defined in Section 6 hereof) by the Holders thereof from
     time to time in accordance with the methods of distribution set forth in
     the Shelf Registration Statement and Rule 415 under the Securities Act
     (hereinafter, the "Shelf Registration"); provided, however, that no Holder
     (other than the Initial Purchaser) shall be entitled to have the Securities
     held by it covered by such Shelf Registration Statement unless such Holder
     agrees in writing to be bound by all the provisions of this Agreement
     applicable to such Holder.

          (b) The Company shall use its reasonable best efforts to keep the
     Shelf Registration Statement continuously effective in order to permit the
     prospectus included therein to be lawfully delivered by the Holders of the
     relevant Securities, for a period of two years (or for such longer period
     if extended pursuant to Section 3(j) below) from the date of its
     effectiveness or such shorter period that will terminate when all the
     Securities covered by the Shelf Registration Statement (i) have been sold
     pursuant thereto or (ii) are no longer restricted securities (as defined in
     Rule 144 under the Securities Act, or any successor rule thereof). The
     Company shall be deemed not to have used its reasonable best efforts to
     keep the Shelf Registration Statement effective during the requisite period
     if it voluntarily takes any action that would result in Holders of
     Securities covered thereby not being able to offer and sell such Securities
     during that period, unless such action is required by applicable law.

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<PAGE>

          (c) Notwithstanding any other provisions of this Agreement to the
     contrary, the Company shall cause the Shelf Registration Statement and the
     related prospectus and any amendment or supplement thereto, as of the
     effective date of the Shelf Registration Statement, amendment or
     supplement, (i) to comply in all material respects with the applicable
     requirements of the Securities Act and the rules and regulations of the
     Commission and (ii) not to contain any untrue statement of a material fact
     or omit to state a material fact required to be stated therein or necessary
     in order to make the statements therein, in light of the circumstances
     under which they were made, not misleading.

     3. Registration Procedures. In connection with any Shelf Registration
contemplated by Section 2 hereof and, to the extent applicable, any Registered
Exchange Offer contemplated by Section 1 hereof, the following provisions shall
apply:

          (a) The Company shall (i) furnish to the Initial Purchaser, prior to
     the filing thereof with the Commission, a copy of the Registration
     Statement and each amendment thereof and each supplement, if any, to the
     prospectus included therein and, in the event that the Initial Purchaser
     (with respect to any portion of an unsold allotment from the original
     offering) is participating in the Registered Exchange Offer or the Shelf
     Registration Statement, the Company shall use its reasonable best efforts
     to reflect in each such document, when so filed with the Commission, such
     comments as the Initial Purchaser reasonably may propose; (ii) include the
     information set forth in Annex A hereto on the cover, in Annex B hereto in
     the "Exchange Offer Procedures" section and the "Purpose of the Exchange
     Offer" section and in Annex C hereto in the "Plan of Distribution" section
     of the prospectus forming a part of the Exchange Offer Registration
     Statement and include the information set forth in Annex D hereto in the
     Letter of Transmittal delivered pursuant to the Registered Exchange Offer;
     (iii) if requested by the Initial Purchaser, include the information
     required by Items 507 or 508 of Regulation S-K under the Securities Act, as
     applicable, in the prospectus forming a part of the Exchange Offer
     Registration Statement; (iv) include within the prospectus contained in the
     Exchange Offer Registration Statement a section entitled "Plan of
     Distribution," reasonably acceptable to the Initial Purchaser, which shall
     contain a summary statement of the positions taken or policies made by the
     staff of the Commission with respect to the potential "underwriter" status
     of any broker-dealer that is the beneficial owner (as defined in Rule 13d-3
     under the Securities Exchange Act of 1934, as amended (the "Exchange Act"))
     of Exchange Securities received by such broker-dealer in the Registered
     Exchange Offer (a "Participating Broker-Dealer"), whether such positions or
     policies have been publicly disseminated by the staff of the Commission or
     such positions or policies, in the reasonable judgment of the Initial
     Purchaser based upon advice of counsel (which may be in-house counsel),
     represent the prevailing views of the staff of the Commission; and (v) in
     the case of a Shelf Registration Statement, include the names of the
     Holders, who propose to sell Securities pursuant to the Shelf Registration
     Statement, as selling securityholders.

          (b) The Company shall give written notice to the Initial Purchaser,
     the Holders of the Securities and any Participating Broker-Dealer from whom
     the Company has received prior written notice that it will be a
     Participating Broker-Dealer in the Registered Exchange Offer (which notice
     pursuant to clauses (ii)-(v) hereof shall be accompanied by an instruction
     to suspend the use of the prospectus until the requisite changes have been
     made):

               (i) when the Registration Statement or any amendment thereto has
          been filed with the Commission and when the Registration Statement or
          any post-effective amendment thereto has become effective;

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<PAGE>

               (ii) of any request by the Commission for amendments or
          supplements to the Registration Statement or the prospectus included
          therein or for additional information;

               (iii) of the issuance by the Commission of any stop order
          suspending the effectiveness of the Registration Statement or the
          initiation of any proceedings for that purpose;

               (iv) of the receipt by the Company or its legal counsel of any
          notification with respect to the suspension of the qualification of
          the Securities for sale in any jurisdiction or the initiation or
          threatening of any proceeding for such purpose; and

               (v) of the happening of any event that requires the Company to
          make changes in the Registration Statement or the prospectus in order
          that the Registration Statement or the prospectus do not contain an
          untrue statement of a material fact nor omit to state a material fact
          required to be stated therein or necessary to make the statements
          therein (in the case of the prospectus, in light of the circumstances
          under which they were made) not misleading.

          (c) The Company shall make every reasonable effort to obtain the
     withdrawal at the earliest possible time, of any order suspending the
     effectiveness of the Registration Statement.

          (d) The Company shall furnish to each Holder of Securities included
     within the coverage of the Shelf Registration, without charge, at least one
     copy of the Shelf Registration Statement and any post-effective amendment
     thereto, including financial statements and schedules, and, if the Holder
     so requests in writing, all exhibits thereto (including those, if any,
     incorporated by reference).

          (e) The Company shall deliver to each Exchanging Dealer and the
     Initial Purchaser, and to any other Holder who so requests, without charge,
     at least one copy of the Exchange Offer Registration Statement and any
     post-effective amendment thereto, including financial statements and
     schedules, and, if the Initial Purchaser or any such Holder requests, all
     exhibits thereto (including those incorporated by reference).

          (f) The Company shall, during the Shelf Registration Period, deliver
     to each Holder of Securities included within the coverage of the Shelf
     Registration, without charge, as many copies of the prospectus (including
     each preliminary prospectus) included in the Shelf Registration Statement
     and any amendment or supplement thereto as such person may reasonably
     request. The Company consents, subject to the provisions of this Agreement,
     to the use of the prospectus or any amendment or supplement thereto by each
     of the selling Holders of the Securities in connection with the offering
     and sale of the Securities covered by the prospectus, or any amendment or
     supplement thereto, included in the Shelf Registration Statement.

          (g) The Company shall deliver to the Initial Purchaser, any Exchanging
     Dealer, any Participating Broker-Dealer and such other persons required to
     deliver a prospectus following the Registered Exchange Offer, without
     charge, as many copies of the final prospectus included in the Exchange
     Offer Registration Statement and any amendment or supplement thereto as
     such persons may reasonably request. The Company consents, subject to the
     provisions of this Agreement, to the use of the prospectus or any amendment
     or supplement thereto by the Initial Purchaser, if necessary, any
     Participating Broker-Dealer and such other persons required to deliver a
     prospectus following the Registered Exchange Offer in connection with the
     offering and sale of the Exchange

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     Securities covered by the prospectus, or any amendment or supplement
     thereto, included in such Exchange Offer Registration Statement.

          (h) Prior to any public offering of the Securities, pursuant to any
     Registration Statement, the Company shall register or qualify or cooperate
     with the Holders of the Securities included therein and their respective
     counsel in connection with the registration or qualification of the
     Securities for offer and sale under the securities or "blue sky" laws of
     such states of the United States as any Holder of the Securities reasonably
     requests in writing and do any and all other acts or things necessary or
     advisable to enable the offer and sale in such jurisdictions of the
     Securities covered by such Registration Statement; provided, however, that
     the Company shall not be required to (i) qualify generally to do business
     in any jurisdiction where it is not then so qualified or (ii) take any
     action which would subject it to general service of process or to taxation
     in any jurisdiction where it is not then so subject.

          (i) The Company shall cooperate with the Holders of the Securities to
     facilitate the timely preparation and delivery of certificates representing
     the Securities to be sold pursuant to any Registration Statement free of
     any restrictive legends and in such denominations and registered in such
     names as the Holders may request a reasonable period of time prior to sales
     of the Securities pursuant to such Registration Statement.

          (j) Upon the occurrence of any event contemplated by paragraphs (ii)
     through (v) of Section 3(b) above during the period for which the Company
     is required to maintain an effective Registration Statement, the Company
     shall promptly prepare and file a post-effective amendment to the
     Registration Statement or a supplement to the related prospectus and any
     other required document so that, as thereafter delivered to Holders of the
     Securities or purchasers of Securities, the prospectus will not contain an
     untrue statement of a material fact or omit to state any material fact
     required to be stated therein or necessary to make the statements therein,
     in light of the circumstances under which they were made, not misleading.
     If the Company notifies the Initial Purchaser, the Holders of the
     Securities and any known Participating Broker-Dealer in accordance with
     paragraphs (ii) through (v) of Section 3(b) above to suspend the use of the
     prospectus until the requisite changes to the prospectus have been made,
     then the Initial Purchaser, the Holders of the Securities and any such
     Participating Broker-Dealers shall suspend use of such prospectus, and the
     period of effectiveness of the Shelf Registration Statement provided for in
     Section 2(b) above and the Exchange Offer Registration Statement provided
     for in Section 1 above shall each be extended by the number of days from
     and including the date of the giving of such notice to and including the
     date when the Initial Purchaser, the Holders of the Securities and any
     known Participating Broker-Dealer shall have received such amended or
     supplemented prospectus pursuant to this Section 3(j).

     Notwithstanding the foregoing, the Company may suspend the offering and
sales under the Exchange Offer Registration Statement subsequent to the
consummation of the Registered Exchange Offer or the Shelf Registration
Statement for up to 30 days in each year during which such Exchange Offer
Registration Statement is required to be effective and usable hereunder
subsequent to the consummation of the Registered Exchange Offer or such Shelf
Registration Statement is required to be effective and usable hereunder
(measured from the date of effectiveness of such Shelf Registration Statement to
successive anniversaries thereof) if (A) either (x)(I) the Company shall be
engaged in a material acquisition or disposition and (II)(a) such acquisition or
disposition is required to be disclosed in the Exchange Offer Registration
Statement or the Shelf Registration Statement, the related prospectus or any
amendment or supplement thereto, or the failure by the Company to disclose such
transaction in the Exchange Offer Registration Statement or the Shelf
Registration Statement or related prospectus, or any amendment or supplement
thereto, as then amended or supplemented, would cause such Exchange Offer
Registration

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Statement or Shelf Registration Statement, prospectus or amendment or supplement
thereto, to contain an untrue statement of material fact or omit to state a
material fact necessary in order to make the statements therein not misleading,
in light of the circumstances under which they were made, (b) information
regarding the existence of such acquisition or disposition has not then been
publicly disclosed by or on behalf of the Company and (c) a majority of the
Board of Directors of the Company determines in the exercise of its good faith
judgment that disclosure of such acquisition or disposition would not be in the
best interest of the Company or would have a material adverse effect on the
consummation of such acquisition or disposition or (y) a majority of the Board
of Directors of the Company determines in the exercise of its good faith
judgment that compliance with the disclosure obligations set forth in this
Section 3(j) would otherwise have a material adverse effect on the Company and
its subsidiaries, taken as a whole, and (B) the Company notifies the Holders
within two business days after such Board of Directors makes the relevant
determination set forth in clause (A); provided, however, that in each such case
the applicable period of effectiveness of the Shelf Registration Statement
provided for in Section 2(b) above and the Exchange Offer Registration Statement
provided for in Section 1 above shall each be extended by the number of days
during which such effectiveness was suspended pursuant to the foregoing and
Additional Interest shall not apply during any period the Company is permitted
to suspend offerings and sales under this sentence.

          (k) Not later than the effective date of the applicable Registration
     Statement, the Company will provide a CUSIP number for the Initial
     Securities, the Exchange Securities or the Private Exchange Securities, as
     the case may be, and provide the applicable trustee with printed
     certificates for the Initial Securities, the Exchange Securities or the
     Private Exchange Securities, as the case may be, in a form eligible for
     deposit with The Depository Trust Company.

          (l) The Company will comply with all rules and regulations of the
     Commission to the extent and so long as they are applicable to the
     Registered Exchange Offer or the Shelf Registration and will make generally
     available to its security holders (or otherwise provide in accordance with
     Section 11(a) of the Securities Act) an earnings statement satisfying the
     provisions of Section 11(a) of the Securities Act, no later than 45 days
     after the end of a 12-month period (or 120 days, if such period is a fiscal
     year) beginning with the first month of the Company's first fiscal quarter
     commencing after the effective date of the Registration Statement, which
     statement shall cover such 12-month period.

          (m) The Company shall cause the Indenture to be qualified under the
     Trust Indenture Act of 1939, as amended, in a timely manner and containing
     such changes, if any, as shall be necessary for such qualification. In the
     event that such qualification would require the appointment of a new
     trustee under the Indenture, the Company shall appoint a new trustee
     thereunder pursuant to the applicable provisions of the Indenture.

          (n) The Company may require each Holder of Securities to be sold
     pursuant to the Shelf Registration Statement to furnish to the Company such
     information regarding the Holder and the distribution of the Securities as
     the Company may from time to time reasonably require for inclusion in the
     Shelf Registration Statement, and the Company may exclude from such
     registration the Securities of any Holder that unreasonably fails to
     furnish such information within a reasonable time after receiving such
     request.

          (o) The Company shall enter into such customary agreements and take
     all such other action, if any, as any Holder of the Securities shall
     reasonably request in order to facilitate the disposition of the Securities
     pursuant to any Shelf Registration.

          (p) In the case of any Shelf Registration, the Company shall (i) make
     reasonably available for inspection by the Holders of the Securities, any
     underwriter participating in any

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     disposition pursuant to the Shelf Registration Statement and any attorney,
     accountant or other agent retained by the Holders of the Securities or any
     such underwriter all relevant financial and other records, pertinent
     corporate documents and properties of the Company and (ii) cause the
     Company's officers, directors, employees, accountants and auditors to
     supply all relevant information reasonably requested by the Holders of the
     Securities or any such underwriter, attorney, accountant or agent in
     connection with the Shelf Registration Statement, in each case, as shall be
     reasonably necessary to enable such persons, to conduct a reasonable
     investigation within the meaning of Section 11 of the Securities Act;
     provided, however, that the foregoing inspection and information gathering
     shall be coordinated on behalf of the Initial Purchaser by you and on
     behalf of the other parties, by one counsel designated by and on behalf of
     such other parties as described in Section 4 hereof.

          (q) In the case of any Shelf Registration, the Company, if requested
     by any Holder of Securities covered thereby, shall cause (i) its counsel to
     deliver an opinion and updates thereof relating to the Securities in
     customary form addressed to such Holders and the managing underwriters, if
     any, thereof and dated, in the case of the initial opinion, the effective
     date of such Shelf Registration Statement (it being agreed that the matters
     to be covered by such opinion shall include, without limitation, the due
     incorporation and good standing of the Company and its subsidiaries; the
     qualification of the Company and its subsidiaries to transact business as
     foreign corporations; the due authorization, execution and delivery of the
     relevant agreement of the type referred to in Section 3(o) hereof; the due
     authorization, execution, authentication and issuance, and the validity and
     enforceability, of the applicable Securities; the absence of material legal
     or governmental proceedings involving the Company and its subsidiaries; the
     absence of governmental approvals required to be obtained in connection
     with the Shelf Registration Statement, the offering and sale of the
     applicable Securities, or any agreement of the type referred to in Section
     3(o) hereof; the compliance as to form of such Shelf Registration Statement
     and any documents incorporated by reference therein and of the Indenture
     with the requirements of the Securities Act and the Trust Indenture Act,
     respectively; and, as of the date of the opinion and as of the effective
     date of the Shelf Registration Statement or most recent post-effective
     amendment thereto, as the case may be, the absence from such Shelf
     Registration Statement and the prospectus included therein, as then amended
     or supplemented, and from any documents incorporated by reference therein
     of an untrue statement of a material fact or the omission to state therein
     a material fact required to be stated therein or necessary to make the
     statements therein not misleading (in the case of any such documents, in
     the light of the circumstances existing at the time that such documents
     were filed with the Commission under the Exchange Act); (ii) its officers
     to execute and deliver all customary documents and certificates and updates
     thereof requested by any underwriters of the applicable Securities and
     (iii) its independent public accountants to provide to the selling Holders
     of the applicable Securities and any underwriter therefor a comfort letter
     in customary form and covering matters of the type customarily covered in
     comfort letters in connection with primary underwritten offerings, subject
     to receipt of appropriate documentation as contemplated, and only if
     permitted, by Statement of Auditing Standards No. 72.

          (r) If a Registered Exchange Offer or a Private Exchange is to be
     consummated, upon delivery of the Initial Securities by Holders to the
     Company (or to such other Person as directed by the Company) in exchange
     for the Exchange Securities or the Private Exchange Securities, as the case
     may be, the Company shall mark, or caused to be marked, on the Initial
     Securities so exchanged that such Initial Securities are being canceled in
     exchange for the Exchange Securities or the Private Exchange Securities, as
     the case may be; in no event shall the Initial Securities be marked as paid
     or otherwise satisfied.

                                       9
<PAGE>

          (s) The Company will use its best efforts to (a) if the Initial
     Securities have been rated prior to the initial sale of such Initial
     Securities, confirm such ratings will apply to the Securities covered by a
     Registration Statement, or (b) if the Initial Securities were not
     previously rated, cause the Securities covered by a Registration Statement
     to be rated with the appropriate rating agencies, if so requested by
     Holders of a majority in aggregate principal amount of Securities covered
     by such Registration Statement, or by the managing underwriters, if any.

          (t) In the event that any broker-dealer registered under the Exchange
     Act shall underwrite any Securities or participate as a member of an
     underwriting syndicate or selling group or "assist in the distribution"
     (within the meaning of the Conduct Rules (the "Rules") of the National
     Association of Securities Dealers, Inc. ("NASD")) thereof, whether as a
     Holder of such Securities or as an underwriter, a placement or sales agent
     or a broker or dealer in respect thereof, or otherwise, the Company will
     assist such broker-dealer in complying with the requirements of such Rules,
     including, without limitation, by (i) if such Rules, including Rule 2720,
     shall so require, engaging a "qualified independent underwriter" (as
     defined in Rule 2720) to participate in the preparation of the Registration
     Statement relating to such Securities, to exercise usual standards of due
     diligence in respect thereto and, if any portion of the offering
     contemplated by such Registration Statement is an underwritten offering or
     is made through a placement or sales agent, to recommend the yield of such
     Securities, (ii) indemnifying any such qualified independent underwriter to
     the extent of the indemnification of underwriters provided in Section 5
     hereof and (iii) providing such information to such broker-dealer as may be
     required in order for such broker-dealer to comply with the requirements of
     the Rules.

          (u) The Company shall use its reasonable best efforts to take all
     other steps necessary to effect the registration of the Securities covered
     by a Registration Statement contemplated hereby.

     4. Registration Expenses. The Company shall bear all fees and expenses
incurred in connection with the performance of its obligations under Sections 1
through 3 hereof (including the reasonable fees and expenses, if any, of
Cravath, Swaine & Moore LLP and Creel, Garcia-Cuellar y Muggenburg, S.C.,
counsel for the Initial Purchaser, incurred in connection with the Registered
Exchange Offer), whether or not the Registered Exchange Offer or a Shelf
Registration is filed or becomes effective, and, in the event of a Shelf
Registration, shall bear or reimburse the Holders of the Securities covered
thereby for the reasonable fees and disbursements of one firm of counsel
designated by the Holders of a majority in principal amount of the Initial
Securities covered thereby to act as counsel for the Holders of the Initial
Securities in connection therewith.

     5. Indemnification. (a) The Company agrees to indemnify and hold harmless
each Holder of the Securities, any Participating Broker-Dealer and each person,
if any, who controls such Holder or such Participating Broker-Dealer within the
meaning of the Securities Act or the Exchange Act (each Holder, any
Participating Broker-Dealer and such controlling persons are referred to
collectively as the "Indemnified Parties") from and against any losses, claims,
damages or liabilities, joint or several, or any actions in respect thereof
(including, but not limited to, any losses, claims, damages, liabilities or
actions relating to purchases and sales of the Securities) to which each
Indemnified Party may become subject under the Securities Act, the Exchange Act
or otherwise, insofar as such losses, claims, damages, liabilities or actions
arise out of or are based upon any untrue statement or alleged untrue statement
of a material fact contained in a Registration Statement or prospectus or in any
amendment or supplement thereto or in any preliminary prospectus relating to a
Shelf Registration, or arise out of, or are based upon, the omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein not misleading, and shall reimburse, as
incurred, the Indemnified Parties for any legal or other expenses reasonably
incurred by them in connection with investigating or defending any such loss,
claim, damage, liability or action in respect thereof; provided, however, that
(i) the Company shall not be liable in

                                       10
<PAGE>

any such case to the extent that such loss, claim, damage or liability arises
out of or is based upon any untrue statement or alleged untrue statement or
omission or alleged omission made in a Registration Statement or prospectus or
in any amendment or supplement thereto or in any preliminary prospectus relating
to a Shelf Registration in reliance upon and in conformity with written
information pertaining to such Holder and furnished to the Company by or on
behalf of such Holder specifically for inclusion therein and (ii) with respect
to any untrue statement or omission or alleged untrue statement or omission made
in any preliminary prospectus relating to a Shelf Registration Statement, the
indemnity agreement contained in this subsection (a) shall not inure to the
benefit of any Holder or Participating Broker-Dealer from whom the person
asserting any such losses, claims, damages or liabilities purchased the
Securities concerned, to the extent that a prospectus relating to such
Securities was required to be delivered by such Holder or Participating
Broker-Dealer under the Securities Act in connection with such purchase and any
such loss, claim, damage or liability of such Holder or Participating
Broker-Dealer results from the fact that there was not sent or given to such
person, at or prior to the written confirmation of the sale of such Securities
to such person, a copy of the final prospectus if the Company had previously
furnished copies thereof to such Holder or Participating Broker-Dealer which
final prospectus corrected such untrue statement or omission or alleged untrue
statement or omission made in any preliminary prospectus; provided further,
however, that this indemnity agreement will be in addition to any liability
which the Company may otherwise have to such Indemnified Party. The Company
shall also indemnify underwriters, their officers and directors and each person
who controls such underwriters within the meaning of the Securities Act or the
Exchange Act to the same extent as provided above with respect to the
indemnification of the Holders of the Securities if requested by such Holders.
Any amounts advanced by the Company to an Indemnified Party pursuant to this
Section 5 as a result of any losses described herein shall be returned to the
Company if it shall be finally determined by a court of competent jurisdiction
in a judgment not subject to appeal or further review that such Indemnified
Party was not entitled to such indemnification by the Company.

          (b) Each Holder of the Securities, severally and not jointly, will
     indemnify and hold harmless the Company and each person, if any, who
     controls the Company within the meaning of the Securities Act or the
     Exchange Act from and against any losses, claims, damages or liabilities or
     any actions in respect thereof, to which the Company or any such
     controlling person may become subject under the Securities Act, the
     Exchange Act or otherwise, insofar as such losses, claims, damages,
     liabilities or actions arise out of or are based upon any untrue statement
     or alleged untrue statement of a material fact contained in a Registration
     Statement or prospectus or in any amendment or supplement thereto or in any
     preliminary prospectus relating to a Shelf Registration, or arise out of or
     are based upon the omission or alleged omission to state therein a material
     fact necessary to make the statements therein not misleading, but in each
     case only to the extent that the untrue statement or omission or alleged
     untrue statement or omission was made in reliance upon and in conformity
     with written information pertaining to such Holder and furnished to the
     Company by or on behalf of such Holder specifically for inclusion therein;
     and, subject to the limitation set forth immediately preceding this clause,
     shall reimburse, as incurred, the Company for any legal or other expenses
     reasonably incurred by the Company or any such controlling person in
     connection with investigating or defending any loss, claim, damage,
     liability or action in respect thereof. This indemnity agreement will be in
     addition to any liability which such Holder may otherwise have to the
     Company or any of its controlling persons.

          (c) Promptly after receipt by an indemnified party under this Section
     5 of notice of the commencement of any action or proceeding (including a
     governmental investigation), such indemnified party will, if a claim in
     respect thereof is to be made against the indemnifying party under this
     Section 5, notify the indemnifying party of the commencement thereof; but
     the failure to notify the indemnifying party shall not relieve the
     indemnifying party from any liability that it may have under subsection (a)
     or (b) above except to the extent that it has been materially prejudiced
     (through the forfeiture of substantive rights or defenses) by such failure;
     and provided further that

                                       11
<PAGE>

     the failure to notify the indemnifying party shall not relieve it from any
     liability that it may have to an indemnified party otherwise than under
     subsection (a) or (b) above. In case any such action is brought against any
     indemnified party, and it notifies the indemnifying party of the
     commencement thereof, the indemnifying party will be entitled to
     participate therein and, to the extent that it may wish, jointly with any
     other indemnifying party similarly notified, to assume the defense thereof,
     with counsel reasonably satisfactory to such indemnified party (who shall
     not, except with the consent of the indemnified party, be counsel to the
     indemnifying party), and after notice from the indemnifying party to such
     indemnified party of its election so to assume the defense thereof the
     indemnifying party will not be liable to such indemnified party under this
     Section 5 for any legal or other expenses, other than reasonable costs of
     investigation, subsequently incurred by such indemnified party in
     connection with the defense thereof. In no event shall the indemnifying
     party be liable for fees and expenses of more than one counsel (in addition
     to any local counsel) separate from its own counsel for the Indemnified
     Party in connection with any one action or separate but related actions in
     the same jurisdiction arising out of the same general allegations or
     circumstances. No indemnifying party shall, without the prior written
     consent of the indemnified party, effect any settlement of any pending or
     threatened action in respect of which any indemnified party is or could
     have been a party and indemnity could have been sought hereunder by such
     indemnified party unless such settlement (i) includes an unconditional
     release of such indemnified party from all liability on any claims that are
     the subject matter of such action, and (ii) does not include a statement as
     to or an admission of fault, culpability or a failure to act by or on
     behalf of any indemnified party.

          (d) If the indemnification provided for in this Section 5 is
     unavailable or insufficient to hold harmless an indemnified party under
     subsections (a) or (b) above, then each indemnifying party shall contribute
     to the amount paid or payable by such indemnified party as a result of the
     losses, claims, damages or liabilities (or actions in respect thereof)
     referred to in subsection (a) or (b) above (i) in such proportion as is
     appropriate to reflect the relative benefits received by the indemnifying
     party or parties on the one hand and the indemnified party on the other
     from the exchange of the Securities, pursuant to the Registered Exchange
     Offer, or (ii) if the allocation provided by the foregoing clause (i) is
     not permitted by applicable law, in such proportion as is appropriate to
     reflect not only the relative benefits referred to in clause (i) above but
     also the relative fault of the indemnifying party or parties on the one
     hand and the indemnified party on the other in connection with the
     statements or omissions that resulted in such losses, claims, damages or
     liabilities (or actions in respect thereof) as well as any other relevant
     equitable considerations. The relative fault of the parties shall be
     determined by reference to, among other things, whether the untrue or
     alleged untrue statement of a material fact or the omission or alleged
     omission to state a material fact relates to information supplied by the
     Company on the one hand or such Holder or such other indemnified party, as
     the case may be, on the other, and the parties' relative intent, knowledge,
     access to information and opportunity to correct or prevent such statement
     or omission. The amount paid by an indemnified party as a result of the
     losses, claims, damages or liabilities referred to in the first sentence of
     this subsection (d) shall be deemed to include any legal or other expenses
     reasonably incurred by such indemnified party in connection with
     investigating or defending any action or claim which is the subject of this
     subsection (d). Notwithstanding any other provision of this Section 5(d),
     the Holders of the Securities shall not be required to contribute any
     amount in excess of the amount by which the net proceeds received by such
     Holders from the sale of the Securities pursuant to a Registration
     Statement exceeds the amount of damages which such Holders have otherwise
     been required to pay by reason of such untrue or alleged untrue statement
     or omission or alleged omission. No person guilty of fraudulent
     misrepresentation (within the meaning of Section 11(f) of the Securities
     Act) shall be entitled to contribution from any person who was not guilty
     of such fraudulent misrepresentation. For purposes of this paragraph (d),
     each person, if any, who controls such indemnified party within the meaning
     of the

                                       12
<PAGE>

     Securities Act or the Exchange Act shall have the same rights to
     contribution as such indemnified party and each person, if any, who
     controls the Company within the meaning of the Securities Act or the
     Exchange Act shall have the same rights to contribution as the Company.

          (e) The agreements contained in this Section 5 shall survive the sale
     of the Securities pursuant to a Registration Statement and shall remain in
     full force and effect, regardless of any termination or cancellation of
     this Agreement or any investigation made by or on behalf of any indemnified
     party.

     6. Additional Interest Under Certain Circumstances. (a) Additional interest
(the "Additional Interest") with respect to the Initial Securities shall be
assessed as follows if any of the following events occur (each such event in
clauses (i) through (v) below a "Registration Default":

          (i) the Company fails to file an Exchange Offer Registration Statement
     or a Shelf Registration Statement with the Commission on or prior to the
     210th day after the Issue Date;

          (ii) the Exchange Offer Registration Statement is not consummated on
     or before the 40th day after the Exchange Offer Registration Statement is
     declared effective;

          (iii) if obligated to file a Shelf Registration Statement pursuant to
     Section 2(ii), (iii), or (iv), the Company fails to file the Shelf
     Registrations Statement with the Commission on or prior to the 30th day
     (the "Shelf Filing Date") after the date on which the obligation to file a
     Shelf Registration Statement arises;

          (iv) if obligated to file a Shelf Registration Statement pursuant to
     Section 2(ii), (iii) or (iv), the Shelf Registration Statement is not
     declared effective on or prior to the 60th or 90th day, as the case may be,
     after the Shelf Filing Date; or

          (v) If after either the Exchange Offer Registration Statement or the
     Shelf Registration Statement is declared effective (A) such Registration
     Statement thereafter ceases to be effective; or (B) such Registration
     Statement or the related prospectus ceases to be usable (except as
     permitted in paragraph (b)) in connection with resales of Transfer
     Restricted Securities during the periods specified herein because either
     (1) any event occurs as a result of which the related prospectus forming
     part of such Registration Statement would include any untrue statement of a
     material fact or omit to state any material fact necessary to make the
     statements therein in the light of the circumstances under which they were
     made not misleading, or (2) it shall be necessary to amend such
     Registration Statement or supplement the related prospectus, to comply with
     the Securities Act or the Exchange Act or the respective rules thereunder;
     provided, however, the Registration Default referred to in this Section
     6(a)(v) shall be deemed not to have occurred and to be continuing, and
     Additional Interest shall not accrue, during any period the Company is
     permitted to suspend offerings and sales pursuant to Section 3(j).

Additional Interest shall accrue on the Securities over and above the interest
set forth in the title of the Securities from and including the date on which
any such Registration Default shall occur to but excluding the date on which all
such Registration Defaults have been cured, at a rate of 0.25% per annum for the
first 90-day period immediately following the occurrence of such Registration
Default. The Additional Interest Rate shall increase by an additional 0.25% per
annum with respect to each subsequent 90-day period until all Registration
Defaults have been cured, up to a maximum Additional Interest Rate of 1.0% per
annum.

          (b) A Registration Default referred to in Section 6(a)(iii)(B) hereof
     shall be deemed not to have occurred and be continuing in relation to a
     Shelf Registration Statement or the related

                                       13
<PAGE>

     prospectus if (i) such Registration Default has occurred solely as a result
     of (x) the filing of a post-effective amendment to such Shelf Registration
     Statement to incorporate annual audited financial information with respect
     to the Company where such post-effective amendment is not yet effective and
     needs to be declared effective to permit Holders to use the related
     prospectus or (y) other material events, with respect to the Company that
     would need to be described in such Shelf Registration Statement or the
     related prospectus and (ii) in the case of clause (y), the Company is
     proceeding promptly and in good faith to amend or supplement such Shelf
     Registration Statement and related prospectus to describe such events;
     provided, however, that in any case if such Registration Default occurs for
     a continuous period in excess of 30 days, Additional Interest shall be
     payable in accordance with the above paragraph from the day such
     Registration Default occurs until such Registration Default is cured.

          (c) Any amounts of Additional Interest due pursuant to clause (i),
     (ii) or (iii) of Section 6(a) above will be payable in cash on the regular
     interest payment dates with respect to the Initial Securities. The amount
     of Additional Interest will be determined by multiplying the applicable
     Additional Interest rate by the principal amount of the Initial Securities,
     multiplied by a fraction, the numerator of which is the number of days such
     Additional Interest rate was applicable during such period (determined on
     the basis of a 360-day year comprised of twelve 30-day months), and the
     denominator of which is 360.

          (d) "Transfer Restricted Securities" means each Security until (i) the
     date on which such Transfer Restricted Security has been exchanged by a
     person other than a broker-dealer for a freely transferable Exchange
     Security in the Registered Exchange Offer, (ii) following the exchange by a
     broker-dealer in the Registered Exchange Offer of a Initial Security for an
     Exchange Note, the date on which such Exchange Note is sold to a purchaser
     who receives from such broker-dealer on or prior to the date of such sale a
     copy of the prospectus contained in the Exchange Offer Registration
     Statement, (iii) the date on which such Initial Security has been
     effectively registered under the Securities Act and disposed of in
     accordance with the Shelf Registration Statement or (iv) the date on which
     such Initial Securities is distributed to the public pursuant to Rule 144
     under the Securities Act or is saleable pursuant to Rule 144(k) under the
     Securities Act.

     7. Rules 144 and 144A. The Company shall use its reasonable best efforts to
file the reports required to be filed by it under the Securities Act and the
Exchange Act in a timely manner and, if at any time the Company is not required
to file such reports, it will, upon the request of any Holder of Initial
Securities, make publicly available other information so long as necessary to
permit sales of their securities pursuant to Rules 144 and 144A. The Company
covenants that it will take such further action as any Holder of Initial
Securities may reasonably request, all to the extent required from time to time
to enable such Holder to sell Initial Securities without registration under the
Securities Act within the limitation of the exemptions provided by Rules 144 and
144A (including the requirements of Rule 144A(d)(4)). The Company will provide a
copy of this Agreement to prospective purchasers of Initial Securities
identified to the Company by the Initial Purchaser upon request. Upon the
request of any Holder of Initial Securities, the Company shall deliver to such
Holder a written statement as to whether it has complied with such requirements.
Notwithstanding the foregoing, nothing in this Section 7 shall be deemed to
require the Company to register any of its securities pursuant to the Exchange
Act.

     8. Underwritten Registrations. If any of the Transfer Restricted Securities
covered by any Shelf Registration are to be sold in an underwritten offering,
the investment banker or investment bankers and manager or managers that will
administer the offering ("Managing Underwriters") will be selected by the
Holders of a majority in aggregate principal amount of such Transfer Restricted
Securities to be included in such offering.

                                       14
<PAGE>

     No person may participate in any underwritten registration hereunder unless
such person (i) agrees to sell such person's Transfer Restricted Securities on
the basis reasonably provided in any underwriting arrangements approved by the
persons entitled hereunder to approve such arrangements and (ii) completes and
executes all questionnaires, powers of attorney, indemnities, underwriting
agreements and other documents reasonably required under the terms of such
underwriting arrangements.

     9. Miscellaneous.

     (a) Amendments and Waivers. The provisions of this Agreement may not be
amended, modified or supplemented, and waivers or consents to departures from
the provisions hereof may not be given, except by the Company and the written
consent of the Holders of a majority in principal amount of the Securities
affected by such amendment, modification, supplement, waiver or consents.

     (b) Notices. All notices and other communications provided for or permitted
hereunder shall be made in writing by hand delivery, first-class mail, facsimile
transmission, or air courier which guarantees overnight delivery:

     (1) if to a Holder of the Securities, at the most current address given by
such Holder to the Company.

     (2) if to the Initial Purchaser;

                           Credit Suisse First Boston LLC
                           Eleven Madison Avenue
                           New York, NY 10010-3629
                           Fax No.:  (212) 325-8278
                           Attention:  Transactions Advisory Group

         with a copy (without constituting notice) to:

                           Cravath, Swaine & Moore LLP
                           825 Eighth Avenue
                           New York, NY 10019
                           Fax No.: (212) 474-3700
                           Attention:  William J. Whelan III

     (3) if to the Company, at its address as follows:

                           Axtel, S.A. de C.V.
                           Blvd. Diaz Ordaz km. 3.33 No. L-1
                           Col. Unidad San Pedro
                           San Pedro Garza Garcia, N.L., Mexico, CP 66215
                           Fax No.: +52 (81) 8114-1771
                           Attention: Patricio Jimenez

         with a copy to:
                           Cahill Gordon & Reindel LLP
                           80 Pine Street
                           New York, NY 10005
                           Fax No.: (212) 701-3005
                           Attention: Roger Andrus

                                       15
<PAGE>

     All such notices and communications shall be deemed to have been duly
given: at the time delivered by hand, if personally delivered; three business
days after being deposited in the mail, postage prepaid, if mailed; when receipt
is acknowledged by recipient's facsimile machine operator, if sent by facsimile
transmission; and on the day delivered, if sent by overnight air courier
guaranteeing next day delivery.

     (c) No Inconsistent Agreements. The Company has not, as of the date hereof,
entered into, nor shall it, on or after the date hereof, enter into, any
agreement with respect to its securities that is inconsistent with the rights
granted to the Holders herein or otherwise conflicts with the provisions hereof.

     (d) Successors and Assigns. This Agreement shall be binding upon the
Company and its successors and assigns.

     (e) Counterparts. This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

     (f) Headings. The headings in this Agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

     (g) Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED IN
ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO PRINCIPLES
OF CONFLICTS OF LAWS.

     (h) Severability. If any one or more of the provisions contained herein, or
the application thereof in any circumstance, is held invalid, illegal or
unenforceable, the validity, legality and enforceability of any such provision
in every other respect and of the remaining provisions contained herein shall
not be affected or impaired thereby.

     (i) Securities Held by the Company. Whenever the consent or approval of
Holders of a specified percentage of principal amount of Securities is required
hereunder, Securities held by the Company or its affiliates (other than
subsequent Holders of Securities if such subsequent Holders are deemed to be
affiliates solely by reason of their holdings of such Securities) shall not be
counted in determining whether such consent or approval was given by the Holders
of such required percentage.

     (j) Agent for Service; Submission to Jurisdiction; Waiver of Immunities. By
the execution and delivery of this Agreement, the Company (i) acknowledges that
it has, by separate written instrument, irrevocably designated and appointed CT
Corporation (and any successor entity), as its authorized agent upon which
process may be served in any suit or proceeding arising out of or relating to
this Agreement that may be instituted in any federal or state court in the State
of New York or brought under federal or state securities laws, and acknowledges
that CT Corporation has accepted such designation, (ii) submits to the
nonexclusive jurisdiction of any such court in any such suit or proceeding, and
(iii) agrees that service of process upon CT Corporation and written notice of
said service to the Company shall be deemed in every respect effective service
of process upon it in any such suit or proceeding. The Company further agrees to
take any and all action, including the execution and filing of any and all such
documents and instruments, as may be necessary to continue such designation and
appointment of CT Corporation in full force and effect so long as any of the
Securities shall be outstanding. To the extent that the Company may acquire any
immunity from jurisdiction of any court or from any legal process (whether
through service of notice, attachment prior to judgment, attachment in aid of
execution, execution or otherwise) with respect to itself or its property, it
hereby irrevocably waives such immunity in respect of this Agreement, to the
fullest extent permitted by law.

                                       16
<PAGE>

         If the foregoing is in accordance with your understanding of our
agreement, please sign and return to the Issuer a counterpart hereof, whereupon
this instrument, along with all counterparts, will become a binding agreement
among the several Initial Purchaser, the Issuer and the Guarantor in accordance
with its terms.

                               Very truly yours,

                               AXTEL, S.A. DE C.V.

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

                               SERVICIOS AXTEL, S.A. DE C.V.

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

                               IMPULSORA E INMOBILIARIA REGIONAL, S.A. DE C.V.

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

                               INSTALACIONES Y CONTRATACIONES, S.A. DE C.V.

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

                                       17
<PAGE>

The foregoing Registration
Rights Agreement is hereby confirmed
and accepted as of the date first
above written.

CREDIT SUISSE FIRST BOSTON LLC,

     by
               ----------------------------------------------
     Name      Lori Finkel
     Title     Managing Director

                                       18
<PAGE>

                                                                         ANNEX A

     Each broker-dealer that receives Exchange Securities for its own account
pursuant to the Exchange Offer must acknowledge that it will deliver a
prospectus in connection with any resale of such Exchange Securities. The Letter
of Transmittal states that by so acknowledging and by delivering a prospectus, a
broker-dealer will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act. This Prospectus, as it may be amended or
supplemented from time to time, may be used by a broker-dealer in connection
with resales of Exchange Securities received in exchange for Initial Securities
where such Initial Securities were acquired by such broker-dealer as a result of
market-making activities or other trading activities. The Company has agreed
that, for a period of 180 days after the Expiration Date (as defined herein), it
will make this Prospectus available to any broker-dealer for use in connection
with any such resale. See "Plan of Distribution."

<PAGE>

                                                                         ANNEX B

     Each broker-dealer that receives Exchange Securities for its own account in
exchange for Securities, where such Initial Securities were acquired by such
broker-dealer as a result of market-making activities or other trading
activities, must acknowledge that it will deliver a prospectus in connection
with any resale of such Exchange Securities. See "Plan of Distribution."

<PAGE>

                                                                         ANNEX C

PLAN OF DISTRIBUTION

     Each broker-dealer that receives Exchange Securities for its own account
pursuant to the Exchange Offer must acknowledge that it will deliver a
prospectus in connection with any resale of such Exchange Securities. This
Prospectus, as it may be amended or supplemented from time to time, may be used
by a broker-dealer in connection with resales of Exchange Securities received in
exchange for Initial Securities where such Initial Securities were acquired as a
result of market-making activities or other trading activities. The Company has
agreed that, for a period of 180 days after the Expiration Date, it will make
this prospectus, as amended or supplemented, available to any broker-dealer for
use in connection with any such resale. In addition, until , 2003, all dealers
effecting transactions in the Exchange Securities may be required to deliver a
prospectus.(1)

     The Company will not receive any proceeds from any sale of Exchange
Securities by broker-dealers. Exchange Securities received by broker-dealers for
their own account pursuant to the Exchange Offer may be sold from time to time
in one or more transactions in the over-the-counter market, in negotiated
transactions, through the writing of options on the Exchange Securities or a
combination of such methods of resale, at market prices prevailing at the time
of resale, at prices related to such prevailing market prices or negotiated
prices. Any such resale may be made directly to purchasers or to or through
brokers or dealers who may receive compensation in the form of commissions or
concessions from any such broker-dealer or the purchasers of any such Exchange
Securities. Any broker-dealer that resells Exchange Securities that were
received by it for its own account pursuant to the Exchange Offer and any broker
or dealer that participates in a distribution of such Exchange Securities may be
deemed to be an "underwriter" within the meaning of the Securities Act and any
profit on any such resale of Exchange Securities and any commission or
concessions received by any such persons may be deemed to be underwriting
compensation under the Securities Act. The Letter of Transmittal states that, by
acknowledging that it will deliver and by delivering a prospectus, a
broker-dealer will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act.

     For a period of 180 days after the Expiration Date the Company will
promptly send additional copies of this Prospectus and any amendment or
supplement to this Prospectus to any broker-dealer that requests such documents
in the Letter of Transmittal. The Company has agreed to pay all expenses
incident to the Exchange Offer (including the expenses of one counsel for the
Holders of the Securities) other than commissions or concessions of any brokers
or dealers and will indemnify the Holders of the Securities (including any
broker-dealers) against certain liabilities, including liabilities under the
Securities Act.

--------

     (1) In addition, the legend required by Item 502(e) of Regulation S-K will
appear on the back cover page of the Exchange Offer prospectus.

                                                                         ANNEX D

/ / CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE 10 ADDITIONAL
COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY AMENDMENTS OR SUPPLEMENTS THERETO.

                  Name:  ____________________________________________
                  Address:  ___________________________________________
                            ___________________________________________

If the undersigned is not a broker-dealer, the undersigned represents that it is
not engaged in, and does not intend to engage in, a distribution of Exchange
Securities. If the undersigned is a broker-dealer that will receive Exchange
Securities for its own account in exchange for Initial Securities that were
acquired as a result of market-making activities or other trading activities, it
acknowledges that it will deliver a prospectus in connection with any resale of
such Exchange Securities; however, by so acknowledging and by delivering a
prospectus, the undersigned will not be deemed to admit that it is an
"underwriter" within the meaning of the Securities Act.EXHIBIT 10.12

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

This Purchase and License Agreement for FWA Equipment (the "Agreement") dated as
of December 28, 2004 (the "Effective Date") is entered by and among Airspan
Communications Limited ("Airspan"), and Axtel, S.A. de C.V. ( "Axtel" and,
together with Airspan, the "Parties"), is effective from the Effective Date and
shall continue in effect thereafter during the Term. References to "days" shall
mean calendar days, unless otherwise specified.

WHEREAS, Axtel and Nortel Networks Limited ("NN Limited") and Nortel Networks de
Mexico, S.A. de C.V. ("NN Mexico" and collectively with NN Limited, "Nortel
Networks") entered into a Purchase and License Agreement for FWA Equipment dated
March 20, 2003, which was subsequently amended by Amendment No. 1 dated
September 15, 2003 and by the Change Order dated December 5, 2003 (the "Original
FWA PLA");

WHEREAS, Nortel Networks and Axtel entered into a Technical Assistance Support
Services Agreement for FWA Equipment dated March 20, 2003 (the "Original FWA
TASS");

WHEREAS, Nortel Networks, Airspan and Axtel entered into an Assignment and
Assumption Agreement dated December 23, 2003, by virtue of which Nortel Networks
assigned all of its rights and obligations under the Original FWA PLA and the
Original FWA TASS to Airspan (the "Assignment Agreement");

WHEREAS, the Parties entered into an Amendment Agreement No. 2, dated as of
April 20, 2004 (the "Amendment No. 2"), in order to confirm their mutual
intention to amend and restate the Original FWA PLA and the Original FWA TASS,
pursuant the terms set forth in such Amendment;

WHEREAS, Axtel issued certain purchase orders for the supply of equipment
Products and related services pursuant the terms and conditions set forth in the
Amendment No. 2, such Products and Services ordered under such purchase orders
shall be subject to the terms and conditions set forth in this Agreement as per
the terms set forth in Section 19 below;

WHEREAS, it is the intention of the Parties to amend and restate the Original
FWA PLA as set forth herein;

NOW THEREFORE in consideration for the mutual premises contained herein, the
Parties hereby covenant and agree as follows:

1.   Definitions, Preamble, Purpose And Schedules

1.1  Unless otherwise expressly indicated, the following definitions shall apply
     to this Agreement and its Annexes:

     "Concession" means any concession, license, permit or the like (including
     any additions or amendments thereto) granted and issued by the governmental
     authorities of Mexico as of the Effective Date or during the Term in favor
     of Axtel that are legally required under applicable laws for operation of
     the Products sold hereunder and Axtel's networks in Mexico.

     "Deliver" and "Delivery" shall have the meaning assigned to such term in
     the Annex "E" of this Agreement.

     "Excess Products" shall mean with respect to FWA RSS Products ordered by
     Axtel in any given month, the FWA RSS Products that exceed the greater of:
     (i) [ * ] FWA RSS Units or (ii) [ * ] more of the amount of FWA RSS Units
     ordered by Axtel for delivery in the prior month (for example if Axtel
     orders [ * ] RSS units for delivery in July and [ * ] RSS units for
     delivery in August, the Excess Products for August would be [ * ] RSS units
     (amount comes from [ * ] of the prior month plus the [ * ] of such amount
     ([ * ]). The result is [ * ] so the Excess Product are [ * ] in order to
     complete the [ * ] units).

     "Force Majeure Event" means the occurrence of fire, casualty, explosion,
     lightning, accident, war (declared or undeclared), armed conflict, civil
     disturbance, riot, Act of God, the enactment,

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     issuance, or application of any law, local by-law, regulation, or
     executive, administrative, or judicial order, acts (including delay or
     failure to act) of any governmental authority, or any other cause or causes
     (whether of the foregoing, nature or not), or any other similar or
     different occurrence, which cause or occurrence is beyond the reasonable
     control of the affected party and whether or not foreseeable by such party

     "FWA Business" means, among other things, the know-how and licenses that
     would allow a third party to manufacture and support base station
     equipment, Axtel premises equipment, remote element manager, system
     software and installation toolsets, that combined provide a fixed wireless
     access solution operating in the 3.5 GHz spectrum using TDMA technology.

     "Hardware" means Airspan machine, equipment or component, but not including
     the software.

     "Local Airspan Affiliate" means any person or entity established prior to
     or during the Term in Mexico, more than fifty percent (50%) of whose voting
     shares or outstanding capital stock is owned or controlled (directly or
     indirectly) by Airspan or an affiliate of Airspan.

     "Products" means any Hardware, Software or Third Party Vendor Items
     provided under this Agreement, which are further described in Annex C
     hereto.

     "Services" means the activities, which may be undertaken by Airspan
     pursuant to an Order, including but not limited to, consulting, business
     planning, network planning and analysis.

     "Site" means a location designated by Axtel at which the Products are to be
     installed and the Services are to be performed.

     "Software" means computer programs or firmware which is owned or licensed
     by Airspan, its parent or one of its subsidiaries or affiliates, and is
     copyrighted and licensed, not sold. Software consists of machine-readable
     instructions, its components, data, audio-visual content (such as images,
     text, recordings or pictures) and related licensed materials including all
     whole or partial copies.

     "Software Scripts" means the high level overlay of the Radio Element
     Manager (REM) software that is either run on demand or scheduled and
     typically collects, post processes or interprets data for operational,
     installation, commissioning and maintenance purposes. The Software Scripts
     do not include REM daemons or REM Graphical User Interface screens (GUI).

     "Specifications" means, with respect to Products and/or Services, the
     technical specifications set forth in Annex D hereto, which describe or
     explain the standard functional capabilities and/or requirements for such
     Products and/or Services.

     "Taxes" means all federal, state, provincial, local, foreign, gross income,
     gross receipts, sales, use, value added, stamp, levies, customs duties,
     franchise, withholding, excise, real or personal property taxes,
     registration charges and all other similar taxes.

     "Term" means [ * ], commencing on the Effective Date, provided that the
     Term may be extended for subsequent [ * ] year periods, subject to the
     Parties agreeing on mutually acceptable commercially reasonable terms and
     conditions, where "commercially reasonable" shall mean terms and conditions
     which would be expected to be found in a comparable contractual arrangement
     between arms' length parties, acting without other economic constraint or
     influence, of similar size and financial situation for products and/or
     services similar or comparable to those under this Agreement, including,
     without limitation, price and gross margins, and delivery lead times,
     capital investment required and credit quality of the buyer; and provided,
     further, that, solely for the period prior to any sale of the FWA Business

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     by Airspan to an unrelated third party, (i) twelve (12) months prior to the
     end of the Term as then in effect, the Parties shall enter into
     negotiations to determine such mutually acceptable commercially reasonable
     terms and conditions, (ii) if agreement on such terms and conditions is not
     reached by the date that is nine (9) months prior to the end of such Term,
     such determination shall be submitted to arbitration pursuant to the Rules
     of Conciliation and Arbitration of the International Chamber of Commerce
     then in force, such proceedings to take place in the English language in
     the City of Miami, Florida, before a panel of three (3) arbitrators
     appointed in accordance with the aforementioned rules, (iii) if such
     arbitration has not resulted in a determination on or before the end of the
     Term as then in effect, the terms and conditions of this Agreement as in
     effect during such Term shall be deemed to continue in effect until such a
     determination is reached, at which time such determination shall be applied
     retroactively to the end of such Term, (iv) if the terms and conditions
     determined by such arbitration are acceptable to Axtel but are not accepted
     by Airspan, then the arbitrators shall determine the price at which they
     believe the FWA business would be sold in an arms length transaction by
     parties acting without other economic constraint or influence, (v) Axtel
     shall have the right to purchase the FWA Business at such price, and (vi)
     if the Axtel elects not to purchase the FWA Business at such price, then
     Airspan shall have no continuing obligation to Axtel beyond the terms of
     this Agreement as then in effect.

     "Third Party Vendor Items" includes "Third Party Hardware" and "Third Party
     Software" and means any non-Airspan hardware and/or software supplied to
     Axtel under this Agreement.

1.2  Certain additional terms and expressions are defined in particular Sections
     of this Agreement.

1.3  Words (including words defined herein) indicating the singular only shall
     also include the plural and vice-versa where the context requires.

1.4  Words indicating the masculine only shall also include the feminine and
     vice-versa where the context requires.

1.5  The preamble shall form an integral part of and shall be incorporated in
     this Agreement as if herein recited at length.

1.6  Airspan and Axtel agree on all of the terms and conditions regarding the
     supply of the Products and Services as set forth in this Agreement.

1.7  The following Annexes to this Agreement are expressly herein incorporated
     by reference and shall form an integral part of this Agreement:

         Annex A  -        Intentionally Left in Blank
         Annex B  -        Change Order Procedures and Form of Change Order
         Annex C  -        Description of Products
         Annex D  -        Product Specifications
         Annex E  -        FWA Order Procedure
         Annex F  -        FWA Prices
         Annex G  -        Warranty Terms and Warranty Services
         Annex H           Acceptance Procedure New FWA RSS F6 Unit
         Annex I  -        Intentionally Left in Blank
         Annex J  -        Products Delivery Times
         Annex K  -        Minimum Purchase Commitment

1.8  In the event of any discrepancy or inconsistency between this Agreement and
     any of its Annexes, the terms and conditions of this Agreement shall
     prevail to the extent of any such discrepancy or inconsistency.

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1.9  Any amendment, modification or addendum to this Agreement shall be made
     making specific reference to the provision(s) to be amended, modified or
     added and shall have to be made in writing signed by all Parties hereto.
     All other provisions not specifically referred to in such amendment,
     modification or addendum shall remain unchanged and in full forced and
     effect.

2.   Orders and Order Procedure

2.1  Axtel may acquire Products or Services by: (i) issuing a written purchase
     order, signed by an authorized representative, or (ii) if Axtel is enrolled
     in any then current Airspan electronic commerce program, by submitting
     electronic orders (collectively, "Orders").

2.2  All Orders shall reference this Agreement and shall comply with the Order
     Procedure attached as Annex E hereto. Orders are totally binding and
     non-cancelable, unless is otherwise set forth in this Agreement.

2.3.1 All Orders will be governed by and cannot alter the terms and conditions
     of this Agreement. In order to be valid, all Orders must be accepted by
     Airspan through a written or electronic communication. Airspan shall accept
     such Order within the next ten (10) business days after delivery thereof,
     if such Order is in compliance with this Agreement (prices and
     descriptions) and no additional terms and conditions have been imposed and
     provided further Airspan has not exercised its rights of termination under
     section 16 of this Agreement.

2.3.2 Axtel will be required to issue Orders to Airspan for delivery of Products
     in accordance with Annex J no sooner than [ * ] weeks prior to the delivery
     date of the Products ordered, Airspan may, however, in its sole discretion,
     agree to accept an Order in accordance with this Agreement if it is issued
     by Axtel later than such date.

2.3.3 Furthermore Airspan will have the right, at its option, either to cancel
     an Order or to postpone delivery of Products until the first payment is
     received, without any responsibility to the Parties, only if Airspan has
     not received from Axtel the first payment mentioned in Section 5.3 below,
     at least sixteen (16) weeks prior to the scheduled delivery date of the
     Products ordered under such Order and if Airspan elects to postpone the
     delivery, the 16-week interval may be recalculated by Airspan from the date
     it receives the downpayment.

2.3.4 For the avoidance of doubt, the Parties agree that Airspan shall not be
     obligated to start performing under any Order until Axtel complies with the
     provisions of this Section 2.3. In the event Airspan does not accept an
     Order in accordance with this Section 2.3, it shall promptly return to
     Axtel any payments made by Axtel with respect to such order, if any.

2.4  The implementation schedule, responsibility matrix and any other items
     which may be necessary for the performance of Airspan' obligations
     hereunder shall be mutually agreed upon between the Parties and included as
     exhibits to the Order. Such exhibits shall be deemed incorporated into this
     Agreement by this reference.

2.5  Intentionally Left in Blank.

2.6  The prices set forth in Annex F and reflected in each Order are based on
     anticipated delivery and performance schedules and specifications
     incorporated in such Order.

2.7  Any changes to this Agreement or an Order initiated by Axtel or Airspan
     after the Effective Date resulting in adjustments to process, job schedule,
     contract price or other requirements thereof may be cause for adjustment by
     Airspan to the prices and to the relevant delivery and performance
     schedules set forth therein. Any such adjustment shall be detailed in a
     change order, a form of which is attached hereto as Annex B ("Change
     Order"). If the Change Order affects any Products for which Airspan has
     commenced manufacturing or has shipped or any

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     Services for which Airspan has commenced performance, the adjustment of the
     price shall include reasonable, documented charges incurred by Airspan
     related thereto. No such changes shall be performed until a Change Order
     has been executed by authorized representatives of the Parties.

2.7.1 A Change Order may be used to increase the amount of Products and/or
     Services ordered or to change the delivery schedule of the Products ordered
     thereunder, taking in consideration the following:

     (i)  The delivery of [ * ] of the relevant Products ordered shall not be
          rescheduled for more than [ * ].

     (ii) The delivery of the [ * ] of the relevant Products ordered shall not
          be rescheduled for more than [ * ].

     (iii) The delivery of the remaining [ * ] of the relevant Products ordered
          shall not be rescheduled for more than [ * ].

2.8  By enrolling in any Airspan' electronic commerce program, Axtel agrees to
     comply with the terms of such program. Axtel agrees that all electronic
     Orders issued are equivalent to a written Order, are governed by the terms
     and conditions of this Agreement and that in the event of any conflict
     between this Agreement and the information contained in Axtel's or Airspan'
     electronic commerce website, this Agreement governs. Axtel is responsible
     for the use and protection of all electronic commerce passcodes provided by
     Airspan and agrees that all Orders submitted using such passcodes are valid
     and binding Orders authorized by Axtel. Airspan shall have no liability to
     Axtel due to Axtel's failure to access Axtel's or Airspan's electronic
     commerce website or errors or failures relating to its operation.

3.   Delivery Terms

3.1  Airspan shall Deliver Products, for which an Order has been accepted by
     Airspan in accordance with section 2, in accordance with the timing set
     forth in Annex "J" of this Agreement. The delivery times shall commence
     after Order acceptance as specified in Section 2.3 of this Agreement,
     provided that Axtel shall establish in the Order the applicable delivery
     time for the Products ordered thereunder in compliance with the times set
     forth in Annex "J" of this Agreement, on the understanding that the parties
     may by mutual agreement establish in such Orders longer delivery times.

3.1.1 Airspan shall Deliver the Products at the applicable Airspan' factory,
     except for RSS equipment, which shall be delivered pursuant the terms set
     forth herein below.

3.2  RSS Delivery Location: RSS shall be delivered at the Airspan Logistics
     Operating Center for North America (currently Laredo, Texas), subject to
     section 3.3 below.

3.3  Virtual Export Import Process. The Parties will make commercially
     reasonable efforts to perform a Virtual Export-Import Process whereby the
     RSS equipment will be delivered at the current RSS manufacturing site
     (Solectron Guadalajara) at the same prices set forth in this Agreement.

3.4  In the event of delay, exclusively attributable to Airspan, in delivering
     the Products (except for the Excess Products) as per the applicable
     delivery times set forth in Annex "J" of this Agreement and in lieu of any
     other damages arising from such delay, Airspan shall pay Axtel, one percent
     (1.0%) of the price of the Products not delivered of the relevant Order per
     each day of delay, up to a maximum of fourteen percent (14%) of the price
     of such Products not delivered. The Parties mutually acknowledge that the
     aforesaid damage amounts are reasonable in light of the anticipated actual
     harm which might be caused by any delay or failure

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     in Delivery of the Products and the difficulty of ascertaining damages.
     Instructions given by Axtel to Airspan to correct faulty work or to repair
     or replace Products shall not constitute a waiver of the damages set forth
     herein.

3.4.1 In the event of delay of more than [ * ], exclusively attributable to
     Airspan, in delivering the Excess Products as per the applicable delivery
     times set forth in Annex "J" of this Agreement and in lieu of any other
     damages arising from such delay, Airspan shall pay Axtel, [ * ] of the
     price of the any Excess Products not delivered of the relevant Order per
     each day of delay (after such [ * ] period), up to a maximum of [ * ] of
     the price of such Excess Products not delivered. The Parties mutually
     acknowledge that the aforesaid damage amounts are reasonable in light of
     the anticipated actual harm which might be caused by any delay or failure
     in Delivery of the Products and the difficulty of ascertaining damages.
     Instructions given by Axtel to Airspan to correct faulty work or to repair
     or replace Products shall not constitute a waiver of the damages set forth
     herein.

3.5  If any RBS Product scheduled for delivery in year 2004, Airspan no delivers
     it to Axtel in such year 2004, Airspan hereby agrees to provide such RBS
     FWA Product to Axtel free of any charge and will reimburse Axtel of any
     amount paid in advance for such Product.

4.   Licensed Use of Software

4.1  Airspan grants Axtel a nonexclusive and perpetual (subject to Airspan
     termination rights set forth in section 4.5 below) license to use a copy of
     the Software with the Products to the extent of the activation or
     authorized usage level.

4.2  To the extent Software is furnished for use with designated Products or
     Axtel-furnished equipment ("CFE"), Axtel is granted a nonexclusive and
     perpetual (subject to Airspan termination rights set forth in section 4.5
     below) license to use the Software only on such Products or CFE, as
     applicable.

4.3  Software contains trade secrets and Axtel agrees to treat Software as
     Information (as defined in Section 10). Axtel will ensure that anyone who
     uses the Software does so only in compliance with the terms of this
     Agreement.

4.4  Axtel shall not: (a) use, copy, modify, transfer or distribute the Software
     except as expressly authorized, provided, however, that, Axtel is hereby
     authorized to generate new Software Scripts or modify the existing ones;
     and provided, further, that Airspan shall not be obligated to support such
     modified Software Scripts, nor shall it be responsible for any performance
     issues resulting from such modified Software Scripts; (b) reverse assemble,
     reverse compile, reverse engineer or otherwise translate the Software; (c)
     create derivative works or modifications unless expressly authorized; or
     (d) sublicense, rent or lease the Software. Licensors of intellectual
     property to Airspan are beneficiaries of this provision.

4.5  Upon breach of the Software license by Axtel as set forth in this Agreement
     or in the event the designated Product or CFE is no longer in use, this
     license terminates and Axtel will promptly return the Software to Airspan
     or certify its destruction.

4.6  Airspan may audit by remote polling or other reasonable means to determine
     Axtel's Software activation or usage levels.

4.7  With respect to Third Party Software, Axtel agrees to abide by the terms
     provided by Airspan with respect to any such software. Axtel further agrees
     that the terms contained in any Airspan or third party "shrink wrap" or
     "click" licenses shall govern the use of such software.

4.8  If Airspan and Axtel agree that Delivery of Software is to be made
     electronically via File Transfer Protocol, then Delivery of such Software
     by Airspan shall be deemed to have taken

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     place at such time as the Software is loaded onto a network server, as
     designated by Airspan, and Axtel has been provided with appropriate
     instructions and passwords to enable Axtel to begin use of such Software.
     Notwithstanding the foregoing, the Parties shall comply with all
     regulations applicable to importation of Software pursuant to applicable
     law.

4.9  Axtel is allowed to make copies of the Software, as may be reasonably
     necessary for back up, execution or archival purposes only.

5.   Charges, Payment and Taxes

5.1  The contract price for the Products (including Software) and Services is
     set forth in Annex F hereto. Unless otherwise agreed by the Parties in an
     Order, all prices are in U.S. dollars, exclusive of Taxes. All prices are
     applicable solely in Mexico.

5.2  In accordance with the terms of Annex "E", within the next five (05)
     business days after the delivery of the Order in accordance with the terms
     set forth in Section 5.3, Airspan shall deliver to Axtel an invoice for one
     hundred percent (100%) of the purchase price of such Order.

5.3  Axtel shall pay Airspan for all Products and Services in accordance with
     the following payment terms, provided that Airspan has not breached its
     representations, warranties, covenants and undertakings under this
     Agreement:

     (i)  For any Product:

          [*]  First Payment, sixteen (16) weeks before the Delivery of the
               Products, or such shorter interval if Airspan has accepted an
               Order under section 2.3.2 having a shorter interval between
               acceptance and Delivery;

          [*]  Second Payment, upon Delivery of the Product(s).

     (ii) For any Services:

          [*]  upon acceptance of the Order by Airspan, and the remainder in
               equal monthly installments on the last business day of each month
               during the period in which the services are performed.

5.4  Payment of the second installment mentioned in Section 5.3 (i) above, shall
     be made by Axtel twenty (20) days after Delivery Date of Basestations, and
     ten (10) days for RSS equipment (as defined in Annex E of this Agreement)
     of the Products; provided that Axtel may notify Airspan in writing within
     such 20-day or 10-day period, as the case may be, if some or all of the
     Products delivered are not in compliance with the terms of the Order (the
     "Non-Compliant Products"), in which case Airspan shall take, within thirty
     days of the date of Axtel's notice, corrective action to resolve such
     Non-Compliant Products. Axtel shall not be obligated to pay the purchase
     price of the Non-Compliant Products until Airspan corrects such
     non-compliance, provided, however, that prior to such resolution Airspan
     shall issue a revised invoice relating to the portion of Products received
     by Axtel that is in compliance with the terms of the Order. Partial
     shipments shall be allowed under this Agreement pursuant the terms set
     forth in Annex "J" of this Agreement. For the avoidance of doubt, the
     Parties agree that the purchase price of the compliant Products shall be
     paid by Axtel as provided in this Section 5.4.

5.5  The Parties hereby agree that any payments to be made under this Agreement
     shall be made when due by wire transfer (electronic or telegraphic) or by
     any other form of payment, in immediately available funds, to Airspan's
     bank account, as follows:

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     ------------------------------- -------------------------------------------
     Bank:                           [ * ],
                                     32 Commercial Way,
                                     Woking,
                                     Surrey GU21 1ER,
                                     England
     ------------------------------- -------------------------------------------
     ------------------------------- -------------------------------------------
     Sort Code:                      [ * ]
     ------------------------------- -------------------------------------------
     ------------------------------- -------------------------------------------
     Account Name:                   Airspan Communications Limited
     ------------------------------- -------------------------------------------
     ------------------------------- -------------------------------------------
     Account No:                     [ * ]
     ------------------------------- -------------------------------------------
     ------------------------------- -------------------------------------------
     Further Instructions            Reference Axtel
     ------------------------------- -------------------------------------------
     ------------------------------- -------------------------------------------
                                     P.O. No. _______,
                                     Payment of Invoice No. ____________.
     ------------------------------- -------------------------------------------

5.6  With respect to Services, amounts are due upon receipt of invoice and shall
     be paid by Axtel within thirty (30) days of the invoice date.

5.7  Axtel shall pay interest on any late payments at the rate of [ * ] percent
     per annum.

5.8  Charges for Software may be based on extent of use authorized as specified
     in this Agreement. Axtel agrees to pay the charges applicable for any
     activation or usage beyond the authorized level.

5.9  Axtel is liable and responsible for any Taxes relating to the purchase and
     importation of the Products or Services furnished by Airspan or its
     subcontractors pursuant to this Agreement (whether incurred directly or
     indirectly by Airspan) and shall, at Airspan' direction, promptly pay to
     Airspan or pay directly to the applicable government or taxing authority,
     if requested by Airspan, all such Taxes; provided, however, that in no
     event shall Axtel be liable for Taxes computed upon the income or gross
     revenues of Airspan or its subcontractors.

5.10 Axtel shall be responsible for payment of personal property taxes for
     Products and materials from the date of shipment by Airspan. Axtel's
     obligations pursuant to this Section shall survive any termination of this
     Agreement.

5.11 Axtel shall, within thirty (30) days of the tax payment on behalf of
     Airspan, furnish to Airspan all original tax receipts or certified copies
     in Airspan' name showing payment of the Tax and such other documentation
     relating to the tax payment which Airspan may reasonably request.

5.12 If Axtel shall claim to be exempt from any Taxes, Axtel shall furnish to
     Airspan a tax exemption certificate from the relevant taxing authority in
     the form required by law or otherwise reasonably acceptable to Airspan. If
     Axtel shall claim any such tax exemption and provides Airspan the required
     tax exemption certificate and Airspan does not collect the Taxes in
     reliance thereupon, Axtel shall hold Airspan harmless from and against any
     and all assessments for such Taxes levied on Airspan, including all
     interest, penalties and late charges upon any such Taxes and the cost of
     professional consulting fees incurred by Airspan to settle the applicable
     tax matter with the relevant tax authorities.

5.13 If withholding of any Tax is required in respect of any payment by Axtel to
     Airspan hereunder, Axtel shall: (i) withhold the appropriate amount from
     such payment, (ii) pay such amount to the relevant authorities in
     accordance with applicable law, and (iii) pay Airspan an additional amount
     such that the net amount received by Airspan is the amount Airspan would
     have received in the absence of such withholding.

5.14 Axtel shall pay all applicable customs fees, import duties, and similar
     charges directly to the appropriate governmental authorities. Each party
     agrees to ensure that it is in good standing and is appropriately
     registered, including without limitation, with respect to Taxes, in any
     country, state or other jurisdiction where legally required.

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5.15 Airspan reserves the right to import services or subcontractors when and
     where necessary to complete services related to this Agreement. To the
     extent the Local Airspan Affiliate must import services or subcontractors
     in support of this Agreement, Airspan reserves the right to have the Local
     Airspan Affiliate invoice Axtel an additional amount such that the cost of
     the withholding taxes for such imported Services are borne by Axtel.

5.16 Axtel consents without qualification to the sale and/or assignment of
     receivables, in whole or in part, including all or any part of any
     associated rights, remedies, and obligations, by Airspan subject to a
     30-day prior written notice, and authorizes the disclosure of this
     Agreement as necessary to facilitate such sale. Any tax impact to Axtel
     resulting from such sale and/or assignment shall be borne by Airspan.

5.17 Intentionally Left in Blank.

5.18 Intentionally Left in Blank.

5.19 Airspan reserves the right to reject an Order at Airspan' sole discretion,
     or to withhold shipment of Products or performance of Services, or any
     portion thereof, if: (i) Axtel is in default of its payment obligations
     hereunder, (ii) Axtel is in breach of its obligations under this Agreement,
     or (iii) Axtel falls under any of the situations described in Sections 16.1
     (i) through (v) hereof, and all relevant dates for completion shall be
     adjusted accordingly.

5.20 Intentionally Left in Blank.

5.21 The Minimum Purchase Commitment is set fort in Section 23 and in Annex K.

5.22 Axtel has the right to engage a third party financial institution to
     provide financing for the Products and/or Services supplied by Airspan
     under this Agreement (provided that Axtel is in compliance with the
     financial covenants set forth in the Airspan Finance Agreement), in which
     case such third party financial institution may purchase Products and
     Services as required by Axtel and may make the payments as provided under
     this Agreement; provided, however, that Axtel shall continue to be
     obligated to comply with all its obligations hereunder or with respect to
     the Product and/or Services sold by Airspan to that third party.

6.   Warranty

6.1  Airspan warrants that the Products (except for the Software) described in
     Annex "C" will be new, unused when delivered and, subject to the provisions
     of this Section and to the terms and conditions set forth in Annex "G" of
     this Agreement.

6.1.1 Airspan warrants that the Software described in Annex "C", will be subject
     to the provisions of this Section and to the terms and conditions set forth
     in Annex "G" of this Agreement.

6.2  Airspan warrants that the Products will be free from defects in materials
     and workmanship and will function substantially in accordance with the
     applicable technical Specifications during the warranty period of [ * ]
     months from the respective Delivery Date pursuant the terms set forth in
     Annex "G" of this Agreement.

6.3  Airspan warrants that the Services will be performed in a professional and
     workmanlike manner and will be subject to the terms set forth in Annex "G"
     of this Agreement.

6.4  THESE WARRANTIES AND LIMITATIONS ARE AXTEL'S EXCLUSIVE WARRANTIES AND SOLE
     REMEDIES, AND REPLACE ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR
     IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR
     CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

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6.5  Single Product RSS Equipment.

6.5.1 Airspan will develop and manufacture a new single unit of RSS equipment
     (the "New FWA RSS F6 Unit"), and Airspan commits to supply the New FWA RSS
     F6 Unit to Axtel from April 1st, 2005 (the "New Product Commercial
     Launch").

6.5.2 The New FWA RSS F6 Unit shall have at least the same form, function and
     fit of both of the current RSS Equipment (jointly F2 and F5 RSS equipment),
     in accordance with the technical specifications set forth in Annex "D" of
     this Agreement.

6.5.3 The price of the New FWA RSS F6 Unit is set forth in the Annex "F" of this
     Agreement.

6.5.4 Airspan will provide a number of fifteen (15) New FWA RSS F6 Units to
     Axtel by January 30th 2005 in order for Axtel to perform and have completed
     no later than March 15th 2005 a first market application of the New FWA RSS
     F6 Unit before the New Product Commercial Launch (the "First Market
     Application"). The New FWA RSS F6 Unit shall pass successfully the First
     Market Application made by Axtel pursuant the acceptance procedure set
     forth in Annex "H" of this Agreement. If Axtel considers it necessary,
     Axtel will have the right to request Airspan to assist Axtel in a
     verification office of the New FWA RSS F6 Unit. Airspan will provide a
     quote for this service under this Agreement at reasonable costs and prices.

6.5.5 Airspan shall sell and deliver to Axtel the current F5 RSS Kit (excluding
     the RDA) instead of such New FWA RSS F6 Unit, at the prices of the New FWA
     RSS F6 Unit set forth in Annex "F" of this Agreement, if any of the
     following events occur:

     (a)  If the New FWA RSS F6 Unit is not available for Delivery after the New
          Product Commercial Launch in accordance with the Specification set
          forth in this Agreement; or

     (b)  If the New FWA RSS F6 Unit does not satisfactorily pass the First
          Market Application performed by Axtel in accordance with the test
          protocol set forth in Annex "H" of this Agreement;

          The foregoing, until such time as:

          (a)  the New FWA RSS F6 Units has satisfactorily complied with the
               First Market Application; and

          (b)  the New FWA RSS F6 Unit is delivered by Airspan pursuant the
               Specifications set forth in this Agreement.

     (c)  If through no fault of Airspan, Axtel is unable to complete the First
          Market Application by March 15th 2005, Airspan shall sell and deliver
          to Axtel the current F5 and F2 RSS kits instead of the New RSS Unit,
          at the prices of such Products set forth in Annex "F" until such time
          as the First Market Application is completed by Axtel.

6.6  As far as both parties are aware the Products comply with all and any
     governmental regulations applicable to such Products at the Effective Date
     (such as "Normas Oficiales Mexicanas"). Airspan will make its best efforts
     to comply with future regulations, provided that, the Parties shall
     previously agree the form to cover the expenses arising from the new
     requirements established by Mexican governmental regulations, provided
     that, if for any reason, Airspan is not willing to perform the necessary
     changes to the Products in order to comply with such governmental
     regulations, Axtel will not be obligated to comply with its purchase
     commitment set forth in Section 23_ and Annex "K" of this Agreement.

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6.7  Intentionally Left in Blank.

6.8  Warranty Services: During the warranty period, Airspan provides warranty
     Services without charge for Products supplied under this Agreement to
     correct Products defects or to bring it up to conformance with the
     Specifications set forth in this Agreement. Warranty Services to be
     provided by Airspan are further described in Annex "G" hereof.

6.9  Axtel shall notify Airspan prior to returning any Product and must
     reference a return material authorization number issued by Airspan on
     documentation accompanying such returned Product. When Axtel is required to
     return Products to Airspan for warranty service, Axtel agrees to ship it
     prepaid and suitably packaged to a location Airspan designates. Airspan
     will return the Product to Axtel at Airspan' expense. Airspan is
     responsible for loss of, or damage to, Products while they are: (i) in
     Airspan' possession, or (ii) in transit back to Axtel. Any exchanged
     Product becomes Airspan' property and, subject to Section 8 - Title and
     Risk of Loss, its replacement becomes the Axtel's property. The replacement
     Product may not be new but will be in working order and equivalent to the
     item exchanged. The warranty period for the repaired or exchanged Product
     shall be the greater of [ * ] days from the date of delivery of the Product
     back to Axtel, or the remaining Product warranty period. Axtel agrees to
     ensure that exchanged Product is free of any legal obligations or
     restrictions that prevent its exchange and represents that all returned
     items are genuine and unaltered.

6.10 Where applicable, before Airspan provides warranty services, Axtel agrees
     to: (i) follow the problem determination, problem analysis, and warranty
     services request procedures that Airspan provides; (ii) secure all program
     and data contained in Product; and (iii) inform Airspan of changes in the
     Product's location.

6.11 Airspan covenants that Support Services, and Functionality of the Products
     or equivalent replacement, including Spare Parts, shall be available to
     Axtel for a period of 7 years from the Effective Date. Notwithstanding the
     foregoing, Airspan shall give Axtel twelve (12) months prior written notice
     in the event that Airspan discontinues the supply of any Products or
     Software sold hereunder. For such discontinued Product and Software,
     Airspan undertakes to continue providing spare parts and technical support,
     including repair of any Products (or part thereof) which are sent to
     Airspan for that purpose, for a period of five (5) years after such
     discontinuance. In case Airspan discontinues the supply of any Product or
     Software sold hereunder during the first two (2) years of the Term, Airspan
     shall make an equivalent Product available to Axtel under the terms of
     Section 14.1 of the Agreement.

6.12 Post-warranty and other Services to supplement the warranty Services,
     including advanced shipment of replacement parts, may be available at
     prices and policies to be negotiated in good faith and agreed between the
     Parties. The warranty service terms and exclusions in Section 6 above shall
     apply to post- and supplemental warranty Services.

7.   Services

7.1  Services in General: Axtel agrees to reasonably cooperate with Airspan in
     the performance by Airspan of the Services, including, without limitation,
     providing Airspan with sufficient and timely access free of charge to
     facilities, data, information and personnel of Axtel in accordance with the
     then-current Axtel policies, and a suitable physical environment meeting
     Airspan' specified requirements to permit the timely delivery and
     installation of Products and/or performance of Services, including the
     recovery by Airspan of any tools, diagnostic or test equipment,
     documentation or other items used by Airspan in the performance of the
     Services.

7.2  In addition, Axtel shall be responsible for the accuracy and completeness
     of all data and information that it provides or causes to be provided to
     Airspan. In the event that there are any delays by Axtel in fulfilling its
     responsibilities as stated above, there is a disagreement between

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     the parties as to the cooperation required from Axtel, or there are errors
     or inaccuracies in the information provided, Airspan shall be entitled to
     appropriate schedule and pricing adjustments, including storage fees. It is
     understood and agreed that the Services provided by Airspan may include the
     advice and recommendations of Airspan, but all decisions in connection with
     the implementation of such advice and recommendations shall be the sole
     responsibility of, and made by, Axtel, unless such advice and
     recommendations are part of consulting services purchased by Axtel.

7.3  Service Personnel: Airspan and Axtel are each responsible for the
     supervision, direction, compensation and control of their own employees and
     subcontractors. Airspan may subcontract any portion or all of the Services
     to subcontractors selected by Airspan. Neither Party shall knowingly
     solicit to hire employees of the other Party with whom it had contact as a
     result of the performance of the Services for a period ending twelve (12)
     months after completion of the Services. Neither Party shall be precluded
     from conducting generalized searches for employees (and hiring those
     employees who respond to generalized searches) either through the use of
     search firms or advertisements in the media, provided that searches are not
     specifically targeted to employees providing Services.

7.4  Intellectual Property Rights: Airspan, on behalf of itself and its
     subcontractors, reserves all proprietary rights in and to: (i) all
     methodologies, designs, engineering details, and other data pertaining to
     the Services and designs, documentation and other work product prepared by
     Airspan and delivered to Axtel, (ii) all original works, computer programs
     and updates developed in the course of providing the Services (except
     Axtel's developed programs) or as otherwise agreed in writing by the
     Parties, (iii) discoveries, inventions, patents, know-how and techniques
     arising out of the Services, and (iv) any and all products (including
     software and equipment) developed as a result of the Services. The
     performance by Airspan of Services shall not be deemed work for hire.
     Airspan grants to Axtel a perpetual, non-exclusive, world-wide, paid up
     license to use, copy and modify the designs, documentation and other work
     product prepared by Airspan and delivered to Axtel in the performance of
     Services solely for Axtel's internal business purposes. It is understood
     between the Parties that Airspan will employ its know-how, techniques,
     concepts, experience and expertise, as well as all other intellectual
     property, including that to which it reserves its rights hereunder, to
     perform services for others which are the same as or similar to the
     Services.

8.   Title and Risk of Loss

8.1  Title and risk of loss for ordered Product (except for the Software) shall
     pass from Airspan to Axtel upon its Delivery to Axtel.

9.   Installation and Commissioning

9.1  Axtel shall perform all installation, commissioning and software loading
     services with respect to the FWA Products, using skilled personnel and in
     accordance with the Airspan Procedures, with the exception of REM software
     upgrades, which shall be installed by Airspan pursuant to the FWA TASS
     Agreement.

10.  Confidential Information

10.1 Confidential information ("Information") means: (i) Software and Third
     Party Software; and (ii) all business, technical, marketing and financial
     information and data that is clearly marked with a restrictive legend of
     the disclosing party ("Discloser").

10.2 The party receiving Information ("Recipient") will use the same care and
     discretion to avoid disclosure, publication or dissemination of Information
     as it uses with its own similar information that it does not wish to
     disclose, publish or disseminate. The Recipient may disclose Information
     only to: (i) its employees and employees of its parent, subsidiary
     affiliated

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     companies or subcontractors who have a need to know for purposes of
     carrying out this Agreement; and (ii) any other party with the Discloser's
     prior written consent. Before disclosure to any of the above parties, the
     Recipient will have a written agreement with such party sufficient to
     require that party to treat Information in accordance with this Agreement.

10.3 The Recipient may disclose Information to the extent required by law.
     However, the Recipient must give the Discloser prompt notice and make a
     reasonable effort to obtain a protective order.

10.4 No obligation of confidentiality applies to any Information that the
     Recipient: (i) already possesses without obligation of confidentiality;
     (ii) develops independently; or (iii) rightfully receives without
     obligations of confidentiality from a third party. No obligation of
     confidentiality applies to any Information that is, or becomes, publicly
     available without breach of this Agreement.

10.5 Each party's obligations hereunder shall survive for a period of five (5)
     years after receipt of Information hereunder from the Discloser, except as
     otherwise mutually agreed upon by the parties.

10.6 THE DISCLOSER MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY NATURE
     WHATSOEVER WITH RESPECT TO ANY INFORMATION FURNISHED TO THE RECIPIENT,
     INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY OR FITNESS
     FOR A PARTICULAR PURPOSE OR AGAINST INFRINGEMENT, EXCEPT FOR THOSE SET
     FORTH IN SECTION 6 HEREOF.

10.7 The release of any advertising or other publicity relating to this
     Agreement requires the prior approval of both Parties.

11.  Patents and Copyrights

11.1 Airspan shall indemnify and hold harmless Axtel, its officers, directors,
     representatives, agents, employees, contractors, subcontractors,
     subsidiaries and affiliates against any actual direct loss, damage,
     liability, cost, expense, action or claim, including reasonable attorneys'
     fees, litigation costs and expenses and amounts paid in settlement, subject
     to the limitations set forth in the following paragraphs, arising out of or
     in connection with any infringement or alleged infringement of patents,
     copyrights, trademarks, trade secrets, or any other intellectual property
     right of a third party.

     Therefore, if a third party claims that a Product or Software provided to
     Axtel under this Agreement infringes such third party's patent or
     copyright, Airspan will defend Axtel against that claim at Airspan' expense
     and pay all costs and damages that a court finally awards or are agreed in
     settlement, provided that Axtel:

     (a)  promptly notifies Airspan in writing of the claim, and

     (b)  allows Airspan to control, and cooperates with Airspan at Airspan'
          expense in, the defense and any related settlement negotiations. If
          such a claim is made or appears likely to be made,

     Airspan agrees to secure the right for Axtel to continue to use the Product
     or Software, or to modify it, or to replace it with equivalent Product or
     Software. If Airspan determines that none of these options is reasonably
     available, Axtel agrees to return the Product or Software to Airspan on
     Airspan' written request. Airspan will then reimburse to Axtel an amount of
     money equal to the purchase price paid by Axtel for the Product or
     Software.

     Any such claims against Axtel or liability for infringement arising from
     use of the Product or Software following a request for return by Airspan
     are the sole responsibility of Axtel. This represents Axtel's sole and
     exclusive remedy regarding any claim of infringement.

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11.2 Airspan has no obligation regarding any claim based on any of the
     following:

     (a)  anything Axtel provides which is incorporated into the Product or
          Software; except for such equipment that has been accepted by Airspan
          in the Specifications set forth in this Agreement

     (b)  compliance by Airspan with Axtel's specifications, designs or
          instructions; except for those set forth in the Specifications set
          forth in this Agreement;

     (c)  any claim by Axtel to Airspan regarding the amount of revenues or
          profits earned or other value obtained by the use of a Product by
          Axtel;

     (d)  Axtel's modification of Product or Software (subject to Section 4.4(a)
          hereof);

     (e)  the combination, operation, or use of Product or Software with other
          products not provided by Airspan as a system, or the combination,
          operation, or use of Product or Software with any product, data, or
          apparatus that Airspan did not provide;

     (f)  the Axtel's failure to install or have installed changes, revisions or
          updates as instructed by Airspan; or

     (g)  infringement by a Third Party Vendor Item alone, as opposed to its
          combination with Products Airspan provides to Axtel as a system.

12.  Limitation of Liability

12.1 In no event shall Airspan or its agents or suppliers be liable to Axtel for
     more than the amount of any actual direct damages up to the greater of U.S.
     [ * ] (or equivalent in local currency) or the charges for the Product or
     Services that are the subject of the claim, regardless of the cause and
     whether arising in contract, tort or otherwise. This limitation will not
     apply to claims for damages for bodily injury (including death) and damage
     to real property and tangible personal property for which Airspan is
     legally liable and payments as set forth in Section 11 - Patents and
     Copyrights.

12.2 IN NO EVENT SHALL AIRSPAN OR ITS AGENTS OR SUPPLIERS BE LIABLE FOR ANY OF
     THE FOLLOWING: I) DAMAGES BASED ON ANY THIRD PARTY CLAIM, EXCEPT AS
     EXPRESSLY PROVIDED FOR HEREIN; II) LOSS OF, OR DAMAGE TO, AXTEL'S RECORDS,
     FILES OR DATA; OR III) INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE, OR
     CONSEQUENTIAL DAMAGES (INCLUDING LOST PROFITS OR LOST SAVINGS), EVEN IF
     AIRSPAN IS INFORMED OF THEIR POSSIBILITY.

13.  Concessions

13.1 Axtel hereby warrants and represents that it and its affiliates in Mexico
     have obtained the Concessions which will permit each of them to legally
     operate all or a portion of the Products in Mexico. The Parties agree that
     Airspan shall not deliver or install any Products, perform any Services or
     accept any Orders hereunder unless Axtel or its affiliates (if applicable)
     have been granted a Concession in Mexico for the use of such Products.

14.  Changes or Substitution of Products

14.1 At any time, Airspan may implement changes to the Products, modify the
     Products' designs and Specifications or substitute the Products with ones
     of similar or more recent design. The Parties shall mutually agree on the
     Price of such changed or substituted Products. Such a

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     change to or substitution of the Products provided under this Agreement
     shall be subject to the following requirements: (i) shall not adversely
     affect the physical or functional interchangeability or the performance
     Specifications of the Products, except as otherwise agreed in writing by
     Axtel; (ii) the price for equivalent performance shall be the same or lower
     than the price agreed hereunder, except as otherwise agreed in writing by
     Axtel; (iii) any change or substitution of the Products shall be
     functionally equivalent and compatible with the changed or substituted
     Product, without the need for any other adaptations; and (iv) shall under
     no circumstances either reduce or decrease Airspan' warranty obligations
     set forth in this Agreement.

15.  Delayed Shipment of the Products or the Performance of the Services

15.1 If Axtel notifies Airspan less than thirty (30) days prior to the scheduled
     delivery date of the Products (or if the Products have been manufactured
     per the agreed upon schedule) that Axtel does not wish to take delivery
     thereof at the scheduled time or that a site is not available to receive
     such Products, or if Axtel fails to take delivery of such Products upon
     their arrival at the applicable site, Airspan shall have the right to place
     the Products in storage and Axtel shall bear all costs of demurrage,
     restocking, warehousing, reloading, transporting, off-loading, and other
     associated costs incurred by Airspan. All such costs shall be paid in full
     within thirty (30) days of Axtel's receipt of Airspan' commercial invoice
     therefor.

15.2 If Axtel notifies Airspan less than thirty (30) days prior to the scheduled
     performance date of the Services that Axtel does not wish Airspan to
     perform such Services at the scheduled time or that the Site is not
     available for the performance of such Services, Airspan shall have the
     right to delay the performance of the Services and Axtel shall bear all
     associated and documented out of pocket travel and expense costs incurred
     by Airspan. All such costs shall be paid in full within thirty (30) days of
     Axtel's receipt of Airspan' commercial invoice therefor.

15.3 Site facilities and physical specifications of equipment (including
     shelters, fiber cabling, power, etc.) provided by Axtel for use with the
     Products sold hereunder must meet Airspan' installation and environmental
     Specifications. Any testing required to verify the condition of Site
     facilities and any required upgrades will be at Axtel's expense.

16.  Termination; Survival

16.1 Without prejudice to any rights and remedies provided for hereunder, either
     Party hereto may terminate at its option, this Agreement or the relevant
     Orders as provided below, effective immediately, upon written notice to any
     other Party, upon the occurrence of any of the following events or
     conditions (each, an "Event of Default"):

     (i)  the other Party applies for or consents to the appointment of, or the
          taking of possession by a receiver, custodian, trustee or liquidator
          of itself or of all or a substantial part of its property,

     (ii) the other Party makes a general assignment for the benefit of its
          creditors,

     (iii) the other Party commences a voluntary proceeding under the
          bankruptcy, insolvency or similar laws relating to relief from
          creditors generally,

     (iv) the other Party fails to contest in a timely or appropriate manner, or
          acquiesces in writing to, any petition filed against it in an
          involuntary proceeding under the bankruptcy, insolvency or similar
          laws relating to relief from creditors generally, or any application
          for the appointment of a receiver, custodian, trustee, or liquidator
          of itself or of all or a substantial part of its property or its
          liquidation, reorganization, dissolution or winding-up, or (v) the
          other Party materially fails to perform any term or condition under
          this Agreement or any of its Annexes, which failure continues for a
          period of thirty (30) days after written notice has been given to the
          breaching Party;

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     (vi) if Axtel becomes entitled to the maximum liquidated damages with
          respect to the delivery of Products under any Order pursuant to
          Sections 3.4 and 3.4.1 above.

     With respect to the Events of Default indicated in sections (v) and (vi)
     above, the affected Party will have the right, at its election, to
     terminate this Agreement (together with any pending Order) or only the
     relevant Order(s).

16.2 The respective obligations of each Party pursuant to Sections 1, 4, 5, 6,
     7, 10, 11, 12, 16 and 18 hereof, and any other obligations of each Party
     pursuant to this Agreement that by their nature would continue beyond the
     termination, cancellation, or expiration hereof, shall survive such
     termination, cancellation, or expiration.; provided, however, that if Axtel
     fails to make payment in accordance with the terms and conditions hereof
     (subject to the cure period provided in Section 16.1 above), the Parties
     expressly agree that the following Sections hereof shall not survive such
     termination, cancellation, or expiration: Sections 6 and 7 only with
     respect to the Products that were not paid in full by Axtel; and provided,
     further, that Section 4 hereof shall survive such termination,
     cancellation, or expiration only to the extent that Axtel is not in default
     of the payment of the applicable Software license fees, if any.

17.  Airspan Procedures, Manuals and Documentation

17.1 "Airspan Procedures" will consist of documents which describe in detail the
     engineering, installation, commissioning, maintenance, troubleshooting and
     operation of Product(s). The Airspan Procedures shall be provided in the
     English language. Airspan shall provide the Airspan Procedures in Spanish
     if so published. Airspan shall ship electronic documentation containing the
     applicable Airspan Procedures to Axtel with the initial delivery of a
     system release to Axtel. During the Term, Airspan shall, at no additional
     charge to Axtel, deliver to Axtel, one set of electronic files with
     updates, revisions and/or corrections of such Airspan Procedures as they
     become available. Axtel may order additional copies of the Airspan
     Procedures at Airspan's then applicable prices. Axtel may use and reproduce
     the Airspan Procedures in paper format for the purposes of engineering,
     installing, commissioning, maintaining, troubleshooting and operating the
     Products, subject to the limitations regarding Information set forth in
     Section 10. Reproduction shall include the copyright or similar proprietary
     notices. Axtel is responsible for ensuring proper versions of the Airspan
     Procedures are printed and distributed.

18.  General

18.1 Axtel agrees that it will not export Products procured hereunder from
     Mexico without Airspan's prior written consent. Airspan reserves the right
     to assign any portion of an Order accepted under this Agreement, in whole
     or in part, provided that such assignment shall be in compliance with the
     provisions of Section 20 below if such assignment falls under the situation
     provided for in Section 20 of this Agreement...

18.2 Axtel agrees to comply with all laws applicable to it, including all
     applicable export and import laws and regulations. In the event that any
     provision of this Agreement or portions thereof are held to be invalid or
     unenforceable, the remainder of this Agreement will remain in full force
     and effect.

18.3 The terms and conditions of this Agreement, and its Annexes, form the
     complete and exclusive agreement between Axtel and Airspan and replace any
     prior oral or written communications and agreements regarding the subject
     matter thereof.

18.4 Any changes to this Agreement must be made by mutual agreement in writing.

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18.5 The laws of the State of New York, United States of America govern this
     Agreement, exclusive of its conflict of laws provisions; and nothing in
     this Agreement affects any statutory rights of consumers that cannot be
     waived or limited by contract. The United Nations Convention on the
     International Sale of Goods shall not apply.

18.6 If, within thirty (30) days from the date of any notice of dispute from a
     Party to any other Party, such Parties are unable to resolve the issue,
     then either Party may initiate the binding arbitration to resolve such
     dispute by written notice to such other Party upon expiration of such
     thirty (30) day period. Any dispute between the Parties arising in
     connection with this Agreement shall be exclusively resolved by arbitration
     pursuant to the Rules of Conciliation and Arbitration of the International
     Chamber of Commerce then in force. The arbitration proceedings pursuant to
     this Section 18(c) shall take place in the English language in the City of
     Miami, State of Florida, before a panel of three (3) arbitrators appointed
     in accordance with the aforementioned rules. The decision of the
     arbitrators shall be final and binding upon the Parties and their
     respective successors and assigns. The decision and award rendered by the
     arbitrators may be entered in any court of competent jurisdiction and any
     such court may order the enforcement of such award against the Parties and
     their respective successors and assigns.

18.7 EACH PARTY IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY
     LEGAL PROCEEDING ARISING OUT OF, OR RELATING TO, THIS AGREEMENT OR THE
     TRANSACTIONS CONTEMPLATED HEREIN, INCLUDING ANY ORDER ISSUED AND ACCEPTED
     HEREUNDER.

18.8 Notwithstanding anything in this Agreement to the contrary, if the supply
     of the Products or the performance of the Services by Airspan, or any
     portion thereof, or the performance of any other obligation hereunder by
     any party is prevented, delayed, interfered with, or interrupted by reason
     of a Force Majeure Event, such prevention, delay, interference, or
     interruption shall be deemed not to be a default pursuant to this Agreement
     and the time or times for such performance or supply hereunder shall be
     extended by the period or periods same is so prevented, delayed, interfered
     with, or interrupted. The foregoing shall apply even though any such cause
     exists or is foreseeable as of the date hereof. Neither Party shall be
     required to change its usual business practices or methods or to assume or
     incur other than its usual costs or expenses in order to mitigate, avoid,
     or eliminate any Force Majeure Event or to reduce the period of any
     resulting delay. Each Party shall notify the other Parties of any delay or
     failure excused by this Section 18.9) and shall specify the revised
     performance date as soon as practicable. Nothing contained in this Section
     18.9 shall affect any obligation of Axtel to make any payment when due in
     accordance with this Agreement.

18.9 All notices pursuant to this Agreement will be in writing and deemed given
     when delivered in person, by certified mail or courier service, or by
     facsimile.

         Notices to Axtel shall be sent to:

         Axtel, S.A. de C.V.
         Boulevard Gustavo Diaz Ordaz Km. 3.33 L-1
         Colonia Unidad San Pedro
         San Pedro Garza Garcia
         Nuevo Leon, Mexico

         Attention: Director de Negociaciones Estrategicas
         with a copy to the Corporate Counsel.

         Notices to Airspan shall be sent to:

                                    Page 17
<PAGE>

Purchase and License Agreement for FWA Equipment

--------------------------------------------------------------------------------

         Airspan Communications Limited
         Cambridge House
         Oxford Road
         Uxbridge
         Middlesex, England
         UB8 1UN

         Attention: Vice President & Controller

         with a copy to:

         Airspan Networks Inc
         777 Yamato Road, suite 105
         Boca Raton, FL 33431
         USA

         Attention: Senior Vice President & Chief Financial Officer

18.10 The relationship between Airspan and Axtel during the term hereof shall be
     that of vendor and purchaser with respect to the purchase of the Hardware
     and licensor and licensee with respect to license of the Software. A
     Party's agents, employees, representatives shall under no circumstances be
     deemed employees, agents or representatives of the other Party or its
     affiliates.

18.11 All work to be performed in connection with this Agreement shall be by
     qualified workers or firms whose employees are not objectionable to the
     trade unions that may be engaged in work on the premises. Airspan shall be
     wholly responsible for all trade union relations in connection to its
     employees and Axtel shall not be liable in any way through delays or claims
     arising through such causes in connection to Airspan employees.

19.  Intentionally Left in Blank.

20.  Assignment; Right of First Refusal

20.1 Each Party agrees not to assign or otherwise transfer this Agreement or its
     rights under it, or delegate its obligations, without the other Party's
     prior written consent, and any attempt to do so is void. Notwithstanding
     the foregoing, Airspan may assign or otherwise transfer this Agreement or
     its rights under it, or delegate its obligations, to any of its affiliates.
     Airspan may also assign or otherwise transfer this Agreement or its rights
     under it, or delegate its obligations, to any purchaser of the FWA Business
     without the Axtel's prior written consent; provided that:

     (i)  Airspan shall provide to Axtel the soliciting or offering material
          used in connection with any contemplated sale of the FWA Business (the
          "FWA Information") at the same time any such FWA Information is
          provided to any third party potential purchaser (the "Potential
          Purchasers"), subject to execution by the Parties of a non-disclosure
          agreement in a form and substance reasonably satisfactory to Airspan,
          but no less restrictive on Axtel than the non-disclosure agreement
          executed with the Potential Purchasers; and provided, however, that
          Airspan may not offer, solicit interest in or sell the FWA Business to
          any company which is a direct competitor of Axtel or does not have the
          necessary resources (human and/or technical), at Airspan' reasonable
          judgment, to manufacture the Products and/or to provide the technical
          support

                                    Page 18
<PAGE>

Purchase and License Agreement for FWA Equipment

--------------------------------------------------------------------------------

          required by Axtel, including without limitation, Telefonos de Mexico,
          S.A. de C.V. or any of its affiliates (the "Restricted Companies");

     (ii) Airspan hereby grants to Axtel a right of first refusal ("RFR") with
          respect to any offer received by Airspan from any third party which
          Airspan proposes to accept (including any revised offers), allowing
          Axtel to purchase the FWA Business on terms not less favorable than
          such offer, subject to Axtel having made, within forty five (45) days
          after Airspan shall have delivered written notice to Axtel of such
          offer or revised offer (the "Vendor's Notice"), a single deposit for
          the amount equal to [ * ] of the amount of the third party offer (the
          "Deposit") into an interest bearing escrow account. Once Airspan has
          received the Deposit, Axtel shall have the right to perform a due
          diligence investigation of the FWA Business, and Airspan shall be
          obligated to promptly provide all the information and access that
          Axtel reasonably requires for the evaluation of the FWA Business; and

     (iii) in the event of any such sale to a purchaser other than Axtel, such
          new vendor shall assume all of Airspan's obligations under this
          Agreement.

20.2 If Axtel exercises its RFR, Airspan and Axtel shall have ninety (90) days
     from payment of the Deposit to negotiate in good faith and enter into a
     purchase agreement pursuant to which Airspan will sell the FWA Business to
     Axtel, unless a longer period of time is stated in the offer received from
     the Potential Purchaser, in which case such longer period shall prevail
     (the "Offer Period"). If the Parties have entered into such an agreement by
     the end of the Offer Period, the Deposit shall be credited towards the
     purchase price of the FWA Business. If the Parties have not entered into
     such an agreement by the end of the Offer Period, Axtel shall forfeit in
     favor of Airspan the Deposit, and Airspan shall have the right to sell the
     FWA Business to any Potential Purchaser other than a Restricted Company,
     subject to the terms and conditions of Section 20.3 below; provided,
     however, that if the terms of the proposed sale are more favorable to such
     Potential Purchaser than the best offer (from Airspan' perspective)
     presented by Axtel to Airspan during the Offer Period, then the RFR shall
     again apply to such sale, but Axtel shall not be obligated to provide any
     additional Deposit.

20.3 If Axtel shall decline in any instance to exercise its RFR or the Parties
     fail to enter into the purchase agreement as described in Section 20.2,
     Airspan shall have the right for a period of one year from the date of such
     declination or failure, to sell the FWA Business to a Potential Purchaser
     (except if such Potential Purchaser is a Restricted Company) without prior
     notice to Axtel, on terms which are not more beneficial to such Potential
     Purchaser than those set forth in Vendor's Notice. If the foregoing
     conditions are not met, the RFR shall again apply to such sale; provided,
     however, that the 90-day term provided in Section 20.2 above shall be
     reduced to forty five (45) days and Axtel shall not be obligated to provide
     any additional Deposit.

21.  Airspan Security Instrument.

21.1 The Parties hereby acknowledge that the current Bank Guarantee granted by
     Airspan to Axtel pursuant the Second Amendment No. 2 shall continue to
     remain open until Airspan delivers to Axtel all the Products covered
     currently by such Bank Guarantee (the Orders Guaranteed by Airspan).
     Thereafter, Axtel shall agree to the release and termination of the Bank
     Guarantee. In addition to the foregoing, the Parties hereby agree that, if
     after the Effective Date of this Agreement, Axtel makes new payments in the
     circumstances described in Section 21.2 below, Airspan shall obtain and
     maintain a new Bank Guarantee to cover the respective Excess Exposure
     Amount until such time as aggregate amounts paid fall below the Excess
     Exposure Amount.

21.2 The Parties hereby acknowledge that, from time to time, Axtel may make
     payments to Airspan under this Agreement such that the aggregate amount of
     those payments for Orders where the

                                    Page 19
<PAGE>

Purchase and License Agreement for FWA Equipment

--------------------------------------------------------------------------------

     related Product has not been delivered may at times exceed US[ * ]
     ("Exposure Limit") in respect of Orders that have not been fully delivered
     ("Orders Guaranteed by Airspan").

21.3 Intentionally Left in Blank.

21.4 The Parties agree that Airspan will cause to be issued in favor of Axtel,
     at Airspan's expense, when such Exposure Limit is exceeded, one or more
     irrevocable standby letters of credit or bank guarantees (together the
     "Bank Guarantee"), issued by Airspan's UK bank at Axtel's satisfaction, for
     an aggregate amount equivalent to all the amounts paid by Axtel in excess
     of the Exposure Limit (the "Excess Exposure Amount").

21.5 The Parties further agree that the aggregate value of the Bank Guarantee,
     as measured and agreed by the parties at the end of each month, will
     continue to be equal or greater than the likely peak Excess Exposure Amount
     for the following month.

21.6 The Bank Guarantee will permit Axtel, on or before its expiry date, to draw
     down the portion of the Bank Guarantee applicable to the funds received by
     Airspan as a down payment with respect to the delivery covered by that Bank
     Guarantee, upon the occurrence of any of the following events or
     conditions:

     (i)  Airspan applies for or consents to the appointment of, or the taking
          of possession by a receiver, custodian, trustee or liquidator of
          itself or of all or a substantial part of its property,

     (ii) Airspan makes a general assignment for the benefit of its creditors,

     (iii) Airspan commences a voluntary proceeding under the bankruptcy,
          insolvency or similar laws relating to relief from creditors
          generally,

     (iv) Airspan fails to contest in a timely or appropriate manner, or
          acquiesces in writing to, any petition filed against it in an
          involuntary proceeding under the bankruptcy, insolvency or similar
          laws relating to relief from creditors generally, or any application
          for the appointment or a receiver, custodian, trustee, or liquidator
          or itself or of all or a substantial part of its property or its
          liquidation, reorganization, dissolution or winding-up.

     (v)  Airspan fails to deliver Products ordered by Axtel under this
          Agreement, within a period of thirty (30) days after the delivery date
          applicable for such Products, pursuant the terms of this Agreement;
          provided (i) that after fifteen (15) days following the date on which
          Airspan has failed to make a delivery, Axtel has provided written
          notice to Airspan of such failure, and (ii) that the thirty (30) day
          period shall be extended where the failure is caused by Force Majeure
          Event, by the number of days for which the Force Majeure Event is in
          existence (if the Force Majeure Event continue for more than 60 days,
          Axtel will have the right to cancel the respective Order(s) and to
          collect from the Bank Guarantee all applicable payments paid to
          Airspan by Axtel for such Product).

22.  Second Lines Module.

22.1 Airspan hereby sells to Axtel the Second Lines Module of (i) all of the FWA
     RSS Products purchased by Axtel before the Effective Date and (ii) all of
     the FWA RSS Products that will be purchased by Axtel in the future; in
     consideration for the Second Line Module, Axtel hereby agrees to pay
     Airspan the amounts of US[ * ] within five (5) days after the date of this
     Agreement, subject to the issuance of the respective Order and the delivery
     of the respective invoice. Axtel will issue the respective Order no later
     than 2 days after the Effective Date of

                                    Page 20
<PAGE>

Purchase and License Agreement for FWA Equipment

--------------------------------------------------------------------------------

     this Agreement; and Airspan will issue the invoice no later than 2 days
     after receipt of the Order.

22.2 Once Axtel has made the payment to Airspan mentioned in Section 22.1, Axtel
     shall have acquired the Second Lines Module of all of the FWA RSS Products
     purchased and to be purchased by Axtel, without being obligated to pay
     Airspan any other additional amount or charge with respect to such use and
     activation of the Second Lines Module of the FWA RSS Products.

23.  Purchase Commitment

23.1 Axtel hereby irrevocably agrees to purchase from Airspan the minimum annual
     amounts of Products as further described in Annex "K" hereof.

23.  Titles and Subtitles

23.1 The titles and subtitles used in this Agreement are for convenience only
     and are not a part of this Agreement and do not in any way limit or amplify
     the terms and provisions of this Agreement.

The Parties hereto have executed this Purchase and License Agreement for FWA
Equipment as of December 28, 2004 and it shall become effective on the Effective
Date.

AXTEL, S.A. DE C.V.                         AIRSPAN COMMUNICATIONS LIMITED

By: /s/ Jose Antonio Velasco Carmona        By: /s/ Peter Aronstam
   -----------------------------------          --------------------------------
Name: Jose Antonio Velasco Carmona          Name: Peter Aronstam
Title: Legal Representative                 Title: Senior Vice President

                                    Page 21

<PAGE>

                                     Annex B

                             CHANGE ORDER PROCEDURES

<PAGE>

                                     ANNEX B

                             CHANGE ORDER PROCEDURES

The following procedure shall apply to the issuance of Change Orders under the
Agreement. Capitalized terms used and not defined herein have the meanings
attributed to them in the Agreement.

1.   Change Order

     Any changes made by Customer after the effective date of the Agreement,
     resulting in adjustments to the content and/or specifications of the
     Products, Services, process, job schedule or other requirements shall be
     considered a change order ("Change Order"). The form of Change Order is
     attached hereto.

     1.1  Customer shall issue a written communication to the Airspan Account
          Manager detailing the nature of the modifications it wishes to make.

     1.2  The Airspan Account Manager shall return to Customer with an
          assessment of requirements to present a quotation.

     1.3  Upon acceptance of Airspan' quotation. Customer shall issue a Change
          Order in the form attached hereto and deliver it to Airspan five (5)
          business days from receipt of Airspan' quotation.

2.   Non-Billable Change Order

     If changes to the content and specifications of the Products or Services
     after the Start Date of the Agreement are deemed non-billable to Customer
     by Airspan, "Non-Billable" shall be checked off on the Change Order.

3.   Customer Information

     In cases where the Change Order is not based on models or merchandise, the
     Customer Information (CI) meeting shall be held and a related document
     shall be completed by Customer with the assistance of the Airspan' Systems
     Application Engineer, capturing all network specifications. Customer shall
     approve this document prior to each request for quotation and subsequent
     Change Order.

                                     Page 2
<PAGE>

                             ANNEX B - ATTACHMENT 1
                              FORM OF CHANGE ORDER

                                                             Axtel, S.A. de C.V.
                               Re: Purchase and License Agreement dated ________
                                                     Change Order No.: _________
                                            Circle One: Billable or Non-Billable

1.   This Change Order is issued pursuant to Section 2 of the Purchase and
     License Agreement, dated __________ (the "Agreement"), by and between
     Axtel, S.A. de C.V. ("Customer") and Airspan Communications Limited. This
     Change Order and the Products and Services to be supplied under this Change
     Order shall be subject to all the terms and conditions set forth in the
     Agreement.

2.   This Change Order shall become effective upon execution by authorized
     representatives of Airspan and Customer.

3.   Origin and Description of Changes:

     [insert narrative explaining reason for change]

     [INSERT ONLY IF NON-BILLABLE: The purpose of this Change Order is to notify
     you of some changes in the project as described below. Airspan deems these
     changes non-billable. Any reference to prices or value is for informational
     purposes only. Airspan requests your acknowledgement below to the changes
     described in this Change Order. This Change Order shall be deemed accepted
     if Airspan has not received your express rejection within thirty days from
     the date set forth above.]

4.   Resulting Adjustment

     [address addition, deletion or change in Products to be delivered, change
     in Price, Schedule, Delivery Term, etc.]

In witness whereof, the Parties have executed this Change Order on the ____ day
of ____________, 200_.

AXTEL, S.A. DE C.V.

By:_____________________________
Print Name:_____________________
Title:__________________________

AIRSPAN COMMUNICATIONS LIMITED

By:_____________________________
Print Name:_____________________
Title:__________________________

                                     Page 3

<PAGE>

Annex C - Description of Products
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

                                     Annex C
                             DESCRIPTION OF PRODUCTS

                                     Page 1
<PAGE>

Annex C - Description of Products
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

                                     Annex C

                             DESCRIPTION OF PRODUCTS

1.   DOCUMENT SCOPE

1.1  Document Scope

     This document details the definition of the FWA equipment to be supplied by
     Airspan to AXtel. Note that "Qty." refers to the quantity of a component
     required for that configuration. Where the quantity of a component required
     for a configuration differs from the unit of measure for that component,
     the unit of measure is included in the description of that component.
     Equipment can only be ordered in whole multiples of the associated unit of
     measure.

2.1.1 FWA Description of Equipment

2.1.1.1 Intentionally Left in Blank

2.1.1.2 Customer Premise Equipment Kits.

                  An F2 RSS Kit is defined as follows:

-------------------- ------------------------------------------------ -------
        PEC                            Description                     Qty.
-------------------- ------------------------------------------------ -------
NTEG17DA             F2 RTU                                           1
-------------------- ------------------------------------------------ -------
NTEG12FA             RPCU                                             1
-------------------- ------------------------------------------------ -------
A0636762             RPCU Battery                                     1
-------------------- ------------------------------------------------ -------
NTEG12CL             RPCU Power Cord                                  1
-------------------- ------------------------------------------------ -------
NTEG12FB             RPCU Safety Booklet                              1
-------------------- ------------------------------------------------ -------
NTEG99JE             Drop Cable (500M)                                0.04
-------------------- ------------------------------------------------ -------
NTEG99GR             Dual Jacket Drop Cable Connector (50)            0.02
-------------------- ------------------------------------------------ -------
NTEG99CZ             Drop Cable Connector Pins (500)                  0.02
-------------------- ------------------------------------------------ -------

     An F5 RSS Kit is defined as follows (RDA KIT EXCLUDED):

-------------------- ------------------------------------------------ -------
        PEC                            Description                     Qty.
-------------------- ------------------------------------------------ -------
NTEG18DA             F5 RTU                                           1
-------------------- ------------------------------------------------ -------
NTEG12FA             RPCU                                             1
-------------------- ------------------------------------------------ -------
A0636762             RPCU Battery                                     1
-------------------- ------------------------------------------------ -------
NTEG12CL             RPCU Power Cord                                  1
-------------------- ------------------------------------------------ -------
NTEG12FB             RPCU Safety Booklet                              1
-------------------- ------------------------------------------------ -------
NTEG99JE             Drop Cable (500m)                                0.04
-------------------- ------------------------------------------------ -------

                                     Page 2
<PAGE>

Annex C - Description of Products
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

-------------------- ------------------------------------------------ -------
NTEG99GR             Drop Cable Connector (50)                        0.02
-------------------- ------------------------------------------------ -------
NTEG99CZ             Drop Cable Connector Pins (500)                  0.02
-------------------- ------------------------------------------------ -------

-----------------------------------------------------------------------------

                  An F5v2 Analog RSS Kit is defined as follows:

-------------------- ------------------------------------------------ -------
        PEC                            Description                     Qty.
-------------------- ------------------------------------------------ -------
NTEG18DB             F5v2 Analog RTU                                  1
-------------------- ------------------------------------------------ -------
NTEG12FA             RPCU                                             1
-------------------- ------------------------------------------------ -------
A0636762             RPCU Battery                                     1
-------------------- ------------------------------------------------ -------
NTEG12CL             RPCU Power Cord                                  1
-------------------- ------------------------------------------------ -------
NTEG12FB             RPCU Safety Booklet                              1
-------------------- ------------------------------------------------ -------
NTEG99JE             Drop Cable (500m)                                0.04
-------------------- ------------------------------------------------ -------
NTEG99GR             Drop Cable Connector (50)                        0.02
-------------------- ------------------------------------------------ -------
NTEG99CZ             Drop Cable Connector Pins (500)                  0.02
-------------------- ------------------------------------------------ -------

-----------------------------------------------------------------------------

                An F6 Single Model RSS Kit is defined as follows:

-------------------- ------------------------------------------------ -------
        PEC                            Description                     Qty.
-------------------- ------------------------------------------------ -------
NTEG19DE             F6 RTU                                           1
-------------------- ------------------------------------------------ -------
NTEG12FA             RPCU                                             1
-------------------- ------------------------------------------------ -------
A0636762             RPCU Battery                                     1
-------------------- ------------------------------------------------ -------
NTEG12CL             RPCU Power Cord                                  1
-------------------- ------------------------------------------------ -------
NTEG12FB             RPCU Safety Booklet                              1
-------------------- ------------------------------------------------ -------
NTEG99JE             Drop Cable (500m)                                0.04
-------------------- ------------------------------------------------ -------
NTEG99GR             Drop Cable Connector (50)                        0.02
-------------------- ------------------------------------------------ -------
NTEG99CZ             Drop Cable Connector Pins (500)                  0.02
-------------------- ------------------------------------------------ -------

                        An RDA Kit is defined as follows:

-------------------- ------------------------------------------------ -------
NTEG18FA             RDA                                              1
-------------------- ------------------------------------------------ -------

                      An F5 RSS Kit is defined as follows:

-------------------- ------------------------------------------------ -------
        PEC                            Description                     Qty.
-------------------- ------------------------------------------------ -------
NTEG18DA             F5 RTU                                           1
-------------------- ------------------------------------------------ -------
NTEG18FA             RDA Kit                                          1
-------------------- ------------------------------------------------ -------
NTEG12FA             RPCU                                             1
-------------------- ------------------------------------------------ -------
A0636762             RPCU Battery                                     1
-------------------- ------------------------------------------------ -------
NTEG12CL             RPCU Power Cord                                  1
-------------------- ------------------------------------------------ -------
NTEG12FB             RPCU Safety Booklet                              1
-------------------- ------------------------------------------------ -------

-------------------- ------------------------------------------------ -------
        PEC                            Description                     Qty.
-------------------- ------------------------------------------------ -------
NTEG99JE             Drop Cable (500m)                                0.04
-------------------- ------------------------------------------------ -------
NTEG99GR             Dual Drop Cable Connector (50)                   0.02
-------------------- ------------------------------------------------ -------
NTEG99CZ             Drop Cable Connector Pins (500)                  0.02
-------------------- ------------------------------------------------ -------

                                     Page 3
<PAGE>

Annex C - Description of Products
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

2.1.1.3 Installation Brackets for F5 & F2 RSS.

                            Compact Mounting Bracket

-------------------- ------------------------------------------------ -------
        PEC                            Description                     Qty.
-------------------- ------------------------------------------------ -------
     NTEG19AJ                 Compact Mounting Bracket (10)             1
-------------------- ------------------------------------------------ -------
     NTEG99DC                  Mounting Coach Screw (200)             0.015
-------------------- ------------------------------------------------ -------
     NTEG99DD                        Washer M8 (200)                  0.015
-------------------- ------------------------------------------------ -------
     NTEG99DE                       Frame Fixing(200)                 0.015
-------------------- ------------------------------------------------ -------

2.1.1.4 Radio Basestation Kits

                   Discrete Radio Basestation Configurations.

     The following configurations are representative of a typical installation.
     Specific installations may require variations on these definitions.

------------------- ------------------------------- -------------- -------------
       PEC                   Description               18b RBS        27b RBS
------------------- ------------------------------- -------------- -------------
     NTED4575       Transceiver Processor Module          5              7
------------------- ------------------------------- -------------- -------------
     NTEG72AD       Transceiver Baseband Module           5              7
                    Combining Diversity
------------------- ------------------------------- -------------- -------------
     NTEG77EC       Transceiver Masthead Unit Kit         6              9
------------------- ------------------------------- -------------- -------------
     NTEG97PC       Antenna to TMU 4m Cable               6              9
------------------- ------------------------------- -------------- -------------
     NTEG94BD       1M Pre-Fit Cabinet                    1              2
------------------- ------------------------------- -------------- -------------
     NTEG63AA       Transceiver Timer Module              0              0
------------------- ------------------------------- -------------- -------------
     NTEG73AA       Network Management Module             0              0
------------------- ------------------------------- -------------- -------------
     NTEG99CJ       TMU to Cabinet IF 1/2 " cable          0.6            0.9
                    (500m)
------------------- ------------------------------- -------------- -------------
     NTEG91BA       1/2  " IF Cable Connector Kit           6              9
------------------- ------------------------------- -------------- -------------
     NTEG99CE       TMU to Cabinet Power cable           0.6            0.9
                    (500m)
------------------- ------------------------------- -------------- -------------
     NTEG93AA       Power Cable Connector Kit             6              9
------------------- ------------------------------- -------------- -------------
     NTEG99CA       TMU to Cabinet Data Cable            0.6            0.9
                    (500m)
------------------- ------------------------------- -------------- -------------
     NTEG92AA       Data Cable Connector Kit              6              9
------------------- ------------------------------- -------------- -------------

------------------- ------------------------------- -------------- -------------
       PEC                   Description               18b RBS        27b RBS
------------------- ------------------------------- -------------- -------------
     NTEG97MF       120 Degree Horizontal              Up to 6        Up to 9
                    Polarization Antenna
------------------- ------------------------------- -------------- -------------
     NTEG97ME       120 Degree Vertical                Up to 6        Up to 9
                    Polarization Antenna
------------------- ------------------------------- -------------- -------------
     NTEG97NF       60 Degree Horizontal               Up to 6        Up to 9
                    Polarization Antenna
------------------- ------------------------------- -------------- -------------
     NTEG97NE       60 Degree Vertical                 Up to 6        Up to 9
                    Polarization Antenna
------------------- ------------------------------- -------------- -------------

                                     Page 4
<PAGE>
Annex C - Description of Products
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

------------------- ------------------------------- -------------- -------------
     NTEG97NG       40 Degree Vertical                    0              0
                    Polarization Antenna
------------------- ------------------------------- -------------- -------------
     NTEG97NH       40 Degree Horizontal                  0              0
                    Polarization Antenna
------------------- ------------------------------- -------------- -------------
     NTEG94PA       120 Ohms primary E1 cable             1              2
------------------- ------------------------------- -------------- -------------

With regard to antennas for the various basestation configurations, the
quantities shown above reflect the maximum number of each antenna that could be
required in a specific installation. The combined total actual antenna
requirement for each configuration is:

                  18b - 6
                  27b - 9
                  48b - 18

For clarity, NTEG94BD (1M Pre-Fit Cabinet) and NTEG77EC (Transceiver Masthead
Unit Kit) are defined as follows:

--------------------------------------------------------------------------------
                           NTEG94BD 1M Pre-Fit Cabinet
--------------------------------------------------------------------------------
       PEC                                         Description             Qty.
------------------- ----------------------------------------------------- ------
NTED4575            Transceiver Processor Module                            1
------------------- ----------------------------------------------------- ------
NTEG63AA            Transceiver Timer Module                                2
------------------- ----------------------------------------------------- ------
NTEG72AD            Transceiver Baseband Module Combining Diversity         1
------------------- ----------------------------------------------------- ------
NTEG73AA            Network Management Module                               1
------------------- ----------------------------------------------------- ------
NTEG7662            CABINET CABLE SET TYPE 2                                1
------------------- ----------------------------------------------------- ------
NTEG74BA            Over Voltage Protection Module                          3
------------------- ----------------------------------------------------- ------
NTEG76BA            ITS Fan Tray Assembly                                   1
------------------- ----------------------------------------------------- ------
NTEG76CC            Secondary DC Breaker Rack Filtered                      1
------------------- ----------------------------------------------------- ------
NTEG76FB            I.T.S Basestation Diversity Sub Rack                    1
------------------- ----------------------------------------------------- ------
NTEG76GA            I.T.S U.K Maintenance Port Assembly                     1
------------------- ----------------------------------------------------- ------
NTEG94AN            1.0M Cabinet Floor Mounting Plinth                      1
------------------- ----------------------------------------------------- ------
NTEG94FA            Alarm Connector Block                                   1
------------------- ----------------------------------------------------- ------
NTEG94QA            1.0M Internal ITS Cabinet                               1
------------------- ----------------------------------------------------- ------

--------------------------------------------------------------------------------
                               NTEG77EC Transceiver Masthead Unit Kit
-----------------------------------------------------------------------------
       PEC                                         Description         Qty.
------------------- ------------------------------------------------- -------
NTEG77CA            T.M.U./T.A.S. Ground Bond Kit                       1
------------------- ------------------------------------------------- -------
NTEG77DA            Sun Shield Assembly                                 1
------------------- ------------------------------------------------- -------
NTEG77GB            T.M.U. Assemble BF Band (100MHz)                    1
------------------- ------------------------------------------------- -------
P0821020            U Bolt 61 C R S                                     2
------------------- ------------------------------------------------- -------
P0821021            U Bolt 126 C R S                                    2
------------------- ------------------------------------------------- -------
P0834843            T.M.U. Mounting Bracket V3                          1
------------------- ------------------------------------------------- -------

2.1.1.5 Discrete Radio Basestation Upgrade Configurations.

     The following configurations are representative of a typical installation,
     eg. 45m cable runs assumed. Specific installations may require variations
     on these definitions.

                                     Page 5
<PAGE>
Annex C - Description of Products
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

--------------- --------------------------- ---------------- -------------------
       PEC             Description            18b to 27b       PDS Upgrade to
                                                Upgrade           18b ITS
--------------- --------------------------- ---------------- -------------------
     NTED4575   Transceiver Processor              2                 0
                Module
--------------- --------------------------- ---------------- -------------------
     NTEG72AD   Transceiver Baseband               2                 0
                Module Combining Diversity
--------------- --------------------------- ---------------- -------------------
     NTEG77EC   Transceiver Masthead Unit          3                 0
                Kit
--------------- --------------------------- ---------------- -------------------
     NTEG97PC   Antenna to TMU 4m Cable            3                 0
--------------- --------------------------- ---------------- -------------------
     NTEG94BD   1M Pre-Fit Cabinet                 1                 0
--------------- --------------------------- ---------------- -------------------
     NTEG63AA   Transceiver Timer Module           0                 0
--------------- --------------------------- ---------------- -------------------
     NTEG73AA   Network Management Module          0                 0
--------------- --------------------------- ---------------- -------------------
     NTEG99CJ   TMU to Cabinet IF1/2"             0.3                0
                cable  (500m)
--------------- --------------------------- ---------------- -------------------
     NTEG91BA   1/2" IF Cable Connector            3                 0
                Kit
--------------- --------------------------- ---------------- -------------------
     NTEG99CE   TMU to Cabinet Power              0.3                0
                cable (500m)
--------------- --------------------------- ---------------- -------------------
     NTEG93AA   Power Cable Connector Kit          3                 0
--------------- --------------------------- ---------------- -------------------
     NTEG99CA   TMU to Cabinet Data Cable         0.3                0
                (500m)
--------------- --------------------------- ---------------- -------------------
     NTEG92AA   Data Cable Connector Kit           3                 0
--------------- --------------------------- ---------------- -------------------
     NTEG97MF   120 Degree Horizontal           Up to 3              0
                Polarization Antenna
--------------- --------------------------- ---------------- -------------------
     NTEG97ME   120 Degree Vertical             Up to 3              0
                Polarization Antenna
--------------- --------------------------- ---------------- -------------------
     NTEG97NF   60 Degree Horizontal            Up to 3              0
                Polarization Antenna
--------------- --------------------------- ---------------- -------------------
     NTEG97NE   60 Degree Vertical              Up to 3              0
                Polarization Antenna
--------------- --------------------------- ---------------- -------------------
     NTEG97NG   40 Degree Vertical                 0                 0
                Polarization Antenna
--------------- --------------------------- ---------------- -------------------
     NTEG97NH   40 Degree Horizontal               0                 0
                Polarization Antenna
--------------- --------------------------- ---------------- -------------------
     NTEG71HA   Transceiver processor              0                 2
                Module - Packet Data
--------------- --------------------------- ---------------- -------------------
       N/A      Packet Data Software               0                 1
                Activation Fee
--------------- --------------------------- ---------------- -------------------

                  With regard to antennas for the various basestation upgrade
                  configurations, the quantities shown above reflect the maximum
                  number of each antenna that could be required in a specific
                  installation. The combined total actual antenna requirement
                  for each upgrade configuration is:
                  18b to 27b Upgrade - 3
                  27b to 48b Upgrade - 12

                                     Page 6
<PAGE>
Annex C - Description of Products
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

2.1.1.6 FWA Software.

------------ ---------------------------------------------------- ------------
    PEC                            Description                       Qty.
------------ ---------------------------------------------------- ------------
    N/A      Basestation Packet Data Software Activation Fee           1
------------ ---------------------------------------------------- ------------
             RMT SOFTWARE LICENSE FEE                                  1
------------ ---------------------------------------------------- ------------

2.1.1.7 FWA OA&M Equipment.

                  Field Engineering Terminal (FET).

Choose one of the following.

----------- ------------------------------------------------------ -------------
   PEC                            Description                          Qty.
----------- ------------------------------------------------------ -------------
 NTEG30AN   FET System Complete (LINUX)on  Panasonic CF27               1
----------- ------------------------------------------------------ -------------
 NTEG30AF   LINUX FET Software Application Kit for Panasonic CF27       1
----------- ------------------------------------------------------ -------------

                  Residential Installation System (RIS).

Survey Kit

---------------- --------------------------------------------------- -----------
       PEC                          Description                          Qty.
---------------- --------------------------------------------------- -----------
    NTEG24BF                100 MHz Generic Survey Kit                    1
---------------- --------------------------------------------------- -----------
   NTEG10DCBV         RSS Installation Sub-Set Documentation              1
---------------- --------------------------------------------------- -----------
    P0872025                        Large Belt                            1
---------------- --------------------------------------------------- -----------
    NTEG24BE       RTU SAK/Handle Pole Kit (5.5m extension kit)           1
---------------- --------------------------------------------------- -----------
    NTEG22EB                  RTU SAK/Handle Assembly                     1
---------------- --------------------------------------------------- -----------
    A0734347                            GPS                               1
---------------- --------------------------------------------------- -----------
    A0658055                    Linesman Phone U.S.                       1
---------------- --------------------------------------------------- -----------

Maintenance Kit

---------------- ----------------------------------------------- ------------
      PEC                     Description                           Qty.
---------------- ----------------------------------------------- ------------
   NTEG24AA         100MHz Generic Maintenance Kit                    1
---------------- ----------------------------------------------- ------------
   NTEG21ND             PSA Mains Adapter U.S.                        1
---------------- ----------------------------------------------- ------------
   A0745625             RMT Mains Adapter U.S.                        1
---------------- ----------------------------------------------- ------------
   A0657248                      Modem                                1
---------------- ----------------------------------------------- ------------
   A0655833                   Multimeter                              1
---------------- ----------------------------------------------- ------------
   NTEG21PB             Vehicle charging Cable                        1
---------------- ----------------------------------------------- ------------
   A0743766               RMT Docking Holster                         1
---------------- ----------------------------------------------- ------------

                  Radio Element Manager (REM).
                  The following configurations are representative of a typical
                  installation. Specific installations may require variations on
                  these definitions.

                                     Page 7
<PAGE>
Annex C - Description of Products
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

<TABLE>
<CAPTION>

---------------- ------------------------------------------------------------------- --------------
      PEC                                   Description                                  Qty.
---------------- ------------------------------------------------------------------- --------------
<S>              <C>                                                                       <C>
   NTEG43AC      HP Unix Server                                                            1
---------------- ------------------------------------------------------------------- --------------
   NTEG41GD      REM Redundancy Upgrade Kit with Online Backup                             1
---------------- ------------------------------------------------------------------- --------------
   NTEG41EG      REM Processor Upgrade Kit                                                 1
---------------- ------------------------------------------------------------------- --------------
   A0784688      HP 3.5" hot swappable drive for HP D-CAL                                  1
---------------- ------------------------------------------------------------------- --------------
   NTEG43AA      HP Client Workstation                                                     1
---------------- ------------------------------------------------------------------- --------------
   NTEJ40BK      Radio Element Manager Software Platform 4.4.2                             1
---------------- ------------------------------------------------------------------- --------------
   NTEG42CB      Snmp Ethernet Network Mgt. Card Type 2                                    1
---------------- ------------------------------------------------------------------- --------------
   NTEG42BC      Network Hub 16 Slot Chassis,Fantray, Hipernmc  & Dual Psu                 1
---------------- ------------------------------------------------------------------- --------------
   NTEG42FB      60 Channel Netserver Ethernet L A N Card                                  1
---------------- ------------------------------------------------------------------- --------------
   NTEG42GM      Quad Modem Card With S/Ware Type 1                                        1
---------------- ------------------------------------------------------------------- --------------
   NTEG43AD      Unix Server annual support                                                1
---------------- ------------------------------------------------------------------- --------------
   NTEG43AB      Client Workstation annual support                                         1
---------------- ------------------------------------------------------------------- --------------
   NTEJ40GC      Remedy ARS Support                                                        1
---------------- ------------------------------------------------------------------- --------------
   NTEJ40JC      Oracle RDBMS Support                                                      1
---------------- ------------------------------------------------------------------- --------------
   A0743702      Openview SW Support                                                       1
---------------- ------------------------------------------------------------------- --------------
   NTEG42KA      Network Hub Annual SW Maintenance                                         1
---------------- ------------------------------------------------------------------- --------------
   A0743715      SW support CLEO                                                           1
---------------- ------------------------------------------------------------------- --------------
   A0740374      Power cord grounded North America                                         0
---------------- ------------------------------------------------------------------- --------------
   NTEJ40AE      REM Exceed SW                                                             1
---------------- ------------------------------------------------------------------- --------------
   NTEG41HB      10 BASE-T SWITCHING HUB-24R                                               1
---------------- ------------------------------------------------------------------- --------------

2.1.1.8 FWA Equipment Spares.

------------------- ---------------------------------------------------------------- --------------
       PEC                                    Description                              Qty. Per
------------------- ---------------------------------------------------------------- --------------
     NTED4575       Transceiver Processor Module                                           1
------------------- ---------------------------------------------------------------- --------------
     NTEG72AD       Transceiver Baseband Module Combining Diversity                        1
------------------- ---------------------------------------------------------------- --------------
     NTEG77EC       Transceiver Masthead Unit Kit                                          1
------------------- ---------------------------------------------------------------- --------------
     NTEG97PC       Antenna to TMU 4m Cable                                                1
------------------- ---------------------------------------------------------------- --------------
     NTEG76BA       ITS Fan Tray Assembly                                                  1
------------------- ---------------------------------------------------------------- --------------
     NTEG76CC       Secondary DC Breaker Rack Filtered                                     1
------------------- ---------------------------------------------------------------- --------------
     NTEG76FB       I.T.S Basestation Diversity Sub Rack                                   1
------------------- ---------------------------------------------------------------- --------------
     NTEG76GA       I.T.S U.K Maintenance Port Assembly                                    1
------------------- ---------------------------------------------------------------- --------------
     NTEG94QA       1.0M Internal ITS Cabinet                                              1
------------------- ---------------------------------------------------------------- --------------
     NTEG74BA       Over Voltage Protection Module                                         3
------------------- ---------------------------------------------------------------- --------------
     NTEG63AA       Transceiver Timer Module                                               1
------------------- ---------------------------------------------------------------- --------------
     NTEG73AA       Network Management Module                                              1
------------------- ---------------------------------------------------------------- --------------
     NTEG99CJ       TMU to Cabinet IF  1/2"Cable                                           500m
------------------- ---------------------------------------------------------------- --------------
     NTEG91BA       1/2" IF Cable Connector Kit                                              1
------------------- ---------------------------------------------------------------- --------------
     NTEG99CE       TMU to Cabinet Power Cable                                           500m
------------------- ---------------------------------------------------------------- --------------
     NTEG93AA       Power Cable Connector Kit                                              1
------------------- ---------------------------------------------------------------- --------------
     NTEG99CA       TMU to Cabinet Data Cable                                            500m
------------------- ---------------------------------------------------------------- --------------
     NTEG92AA       Data Cable Connector Kit                                               1
------------------- ---------------------------------------------------------------- --------------
     NTEG97ME       120 Degree Vertical Polarization Antenna                               1
------------------- ---------------------------------------------------------------- --------------

------------------- ---------------------------------------------------------------- --------------
       PEC                                    Description                              Qty. Per
------------------- ---------------------------------------------------------------- --------------
     NTEG97MF       120 Degree Horizontal Polarization Antenna                             1
------------------- ---------------------------------------------------------------- --------------
     NTEG97NE       60 Degree Vertical Polarization Antenna                                1
------------------- ---------------------------------------------------------------- --------------
     NTEG97NF       60 Degree Horizontal Polarization Antenna                              1
------------------- ---------------------------------------------------------------- --------------
     NTEG97NG       40 Degree Vertical Polarization Antenna                                1
------------------- ---------------------------------------------------------------- --------------
     NTEG97NH       40 Degree Horizontal Polarization Antenna                              1
------------------- ---------------------------------------------------------------- --------------

                                     Page 8
<PAGE>
Annex C - Description of Products
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

     NTEG71HA       Transceiver Processor Module - Packet Data                             1
------------------- ---------------------------------------------------------------- --------------
     NTEG18DA       F5 RTU                                                                 1
------------------- ---------------------------------------------------------------- --------------
     NTEG18FA       RDA Kit                                                                1
------------------- ---------------------------------------------------------------- --------------
     NTEG12FA       RPCU                                                                   1
------------------- ---------------------------------------------------------------- --------------
     A0636762       RPCU Battery                                                           1
------------------- ---------------------------------------------------------------- --------------
     NTEG12CL       RPCU Power Cord                                                        1
------------------- ---------------------------------------------------------------- --------------
     NTEG12FB       RPCU Safety Booklet                                                    1
------------------- ---------------------------------------------------------------- --------------
     NTEG99JE       Dual Jacket Drop Cable                                               500m
------------------- ---------------------------------------------------------------- --------------
     NTEG99GR       Dual Jacket Drop Cable Connector                                      50
------------------- ---------------------------------------------------------------- --------------
     NTEG99CZ       Drop Cable Connector Pins                                             500
------------------- ---------------------------------------------------------------- --------------
     NTEG17DA       F2 RTU                                                                 1
------------------- ---------------------------------------------------------------- --------------
     NTEG19DE       F6 RTU                                                                 1
------------------- ---------------------------------------------------------------- --------------
     NTEG18DB       F5v2 RTU                                                               1
------------------- ---------------------------------------------------------------- --------------

</TABLE>

                                     Page 9

<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

                                     Annex D

                             Product Specifications

<PAGE>
Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

                                     Annex D

                             Product Specifications

                                PLA FWA Contract

1.   Scope

1.1  This section defines the essential performance characteristics of the
     Airspan Internet Fixed Wireless Access system (Internet FWA). The scope of
     the section is confined to the airside equipment that supports wireless
     transmission in the local loop, i.e. that part of the system from the
     Base-station network interface to the subscriber premises terminal
     interface (telephone socket), together with associated network management
     operations systems in the element management layer. The specifications for
     the switch, service gateway and other associated backhaul equipment are
     therefore specifically excluded from this section.

2.1  General description

2.1.1 Intentionally Left in Blank

2.1.1.1 Purpose of Internet FWA

     The Internet FWA system allows telecommunications operators to construct
     high quality telephone access networks between customers' premises and
     local exchanges. The system uses cellular point to multi-point wireless
     technology as a replacement for traditional copper-based local loops. A
     major advantage of FWA technology is that it allows operators to create new
     access networks quickly and with minimum capital investment.

     Each terminal in the Internet FWA system is capable of delivering PSTN
     circuit-switched services through two standard analogue telephone lines. In
     addition to the PSTN services, a packet-mode service may be used to deliver
     `always-on' connections between one or more Internet Service Providers
     (ISPs) and the computer equipment of subscribers.

     The Internet FWA system provides a frequency division duplex radio link to
     a subscriber transceiver system and operates in the 3.4 to 3.6 GHz band.
     The air interface utilizes time division multiplex on the downlink and time
     division multiple access on the uplink. The system comprises a network of
     Radio Base-stations (RBS) arranged on a cellular plan and these are
     connected to the PSTN or to the public Internet by a conventional back-haul
     network. Each base-station consists of one or more Integrated Transceiver
     Systems (ITSs).

2.1.2 Sub-systems

     The Internet FWA system contains two Network elements (NEs):

     o    Remote Service System (RSS)

     o    Radio Base Station (RBS)

                                     Page 2
<PAGE>
Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

     The Internet FWA system contains three Operations systems (OSs):

     o    Radio Element Manager (REM)

     o    RSS Installation System (RIS)

     o    Field Engineering Terminal (FET)

     The Remote Service System (RSS)

     This system provides the subscriber with two independent analogue exchange
     lines and optionally a packet data service interface. The system consists
     of the RSS Terminal Unit (RTU), an RSS Power and Connection unit (RPCU) and
     an RSS Data Adapter (RDA) or Dongle Data Adaptor

     The RTU is mounted externally to the subscriber premises and contains a
     directional antenna, radio electronics and the two analogue line interfaces
     to carry PSTN services. The unit is powered from the RPCU indoor unit that
     plugs into the subscribers mains supply. A `drop cable' connects the RTU to
     the RPCU. The RPCU contains two sets of telephone sockets for connection to
     the subscriber's telephone equipment. In order to provide the optional
     packet data service, an RDA is supplied along with a special version of the
     RTU that contains the required data interface. The packet data service
     makes use of the HPNA standard to multiplex the data onto `line 0' of the
     telephone wires. The RDA connects to the subscriber's personal computer.

     The Integrated Transceiver System (ITS)

     One or more ITSs form the basis of the radio base-station and have been
     designed to serve an area of up to 5km radius in a typical urban
     environment and up to 20km in a rural environment.

     Voice band circuits from the ITS are connected to the switch by means of E1
     links running a V5.2 protocol. The packet data service is also routed over
     E1 links to the service gateway using L2TP (layer 2 tunnel protocol). The
     ITS can route any slot from the `circuit' E1s to any slot on the airside
     interface.

     In principle, an ITS can be provisioned as a 3, 6, 9, 12, 15 or 18 bearer
     configuration. RBS configurations specifically supported by installation
     and maintenance processes provide tri-sectored configurations with 18 or
     27(1) RF carriers, or a tri/hex-sectored RBS with 48 RF carriers. The
     27-carrier configurations require the use of two ITSs, and the 48-carrier
     configuration requires the use of three ITSs. The 48 bearer base-station is
     designed to provide coverage in two `RF layers', the first layer allowing a
     frequency re-use of one to be employed whilst a more conservative frequency
     plan is used in the other layer. Service to the individual RSS can be
     switched between these two layers depending on the interference environment
     experienced at that RSS.

     Radio Element Manager (REM)

----------

1 In the Axtel application, the 27 bearer base-stations generally provide only
26 bearers due to limited availability of RF channels.

                                     Page 3
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

     The Radio Element Manger (REM) is a high performance, high capacity
     management system and is used to perform the Operation, Administration,
     Maintenance and Provisioning (OAM&P) procedures for the Internet FWA
     network. One REM can manage up to 200 ITSs and 150,000lines. The REM is
     primarily composed of a server platform, a client platform, additional user
     PCs and a Network Communications Server. Their respective purposes are
     described below. The REM supports a total of 4 expert and 4 standard user
     sessions.

     The REM server performs all provisioning related, object-related, event and
     alarm related processing, together with some of the GUI processing.
     Further, the server stores all object, event and alarm related data and
     state. As such, the majority of REM software executes on the server. The
     server also interfaces directly to a customer's High Level Management
     System (HLMS) for subscriber provisioning.

     The REM Client primarily acts as the host platform for the additional user
     GUI screens. It provides some of the GUI processing, and acts as a platform
     on which additional user scripts run.

     PCs running Exceed software connect with the REM client to allow access for
     additional users.

     The Network Communication Server (NCS) is an integrated terminal server and
     modem unit, which provides a connectivity solution from the REM to its
     network of ITSs. It also provides connectivity to the Remote Maintenance
     Terminal that is used during the subscriber hardware installation.

     Field engineering terminal (FET)

     The installing engineer will use this equipment during installation and
     commissioning of Base-station equipment. The FET application runs on a PC
     platform using a LINUX operating system. The FET is intended to connect
     locally into an ITS and allows control of the ITS as well as access to
     status information. Each FET requires a license key to enable operation and
     these are available from Airspan.

     RSS Installation system (RIS)

     The installing engineer will use this equipment to control the RSS during
     installation, to aid antenna alignment to the Base Station, to measure the
     performance of the RF link and to enable the connection. The primary
     component of the RIS is the Remote Maintenance Terminal (RMT).

2.1.3 External interfaces

     The physical layer external interfaces of the Internet FWA system are:

     o    Analogue line interface at the RSS

     o    Packet data interface at the RSS

     o    A.C. power interface at the RSS

     o    PCM (E1) interface at the RBS

     o    Packet data (E1) interface at the RBS

     o    D.C. power interface at the RBS

                                     Page 4
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

     o    External alarm interface at the RBS

     o    Analogue line interface at the RIS. This is used to connect the RMT to
          the REM to download provisioning data.

     o    Analogue line interface at the REM

     o    Ethernet interface at the REM. This is used to connect the REM to
          higher-layer operations systems.

2.2  Physical characteristics

2.2.1 RSS transceiver unit (RTU)

2.2.1.1 Mechanical

              Length/width: 300 mm (octagonal, measured between flat faces)
              Depth: 90 mm excluding mounting brackets
              Mass: 2.5 kg.

2.2.1.2 Environmental

              Ambient temperature: -40 C to +50 C
              Solar radiation: <= 1120 W/m2
              Relative humidity: 5% to 100%

2.2.2 RSS power and connection unit (RPCU)

2.2.2.1 Mechanical

              Length: 210 mm
              Width: 135 mm
              Depth: 41 mm
              Mass: 2.0 kg including battery

2.2.2.2 Electrical

              Input voltage: 85 V to 270 V RMS
              Input frequency: 45 Hz to 70 Hz

2.2.2.3 Environmental

              Ambient temperature: -5 C to +45 C
              Relative humidity 5% to 100%

2.2.3 RSS data adaptor (RDA)

2.2.3.1 Mechanical

              Length: 165 mm
              Width: 125 mm
              Depth: 28 mm
              Mass: 250 g

                                     Page 5
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

2.2.3.2 Environmental

              Ambient temperature: -5C to +45C
              Relative humidity: 5% to 100%

2.2.4 Integrated transceiver system (ITS) indoor equipment

2.2.4.1 Mechanical

              Width: 600mm
              Height and depth (1 metre cabinet): 1000 mm x 300 mm

2.2.4.2 Environmental

              Ambient temperature: 0 C to +45 C
              Solar radiation: <= 700 W/m2
              Relative humidity: 5% to 95%

2.2.5 Integrated transceiver system (ITS) masthead equipment

2.2.5.1 Mechanical (TMU)

              Height: 600 mm
              Width: 450 mm
              Depth: 200 mm
              Mass: <= 30 kg

2.2.5.2 Environmental

              Ambient temperature: -40 C to +50 C
              Solar radiation: <= 1120 W/m2
              Relative humidity: 5% to 100%

2.3  Radio system

2.3.1 General description of the air interface

2.3.1.1 Physical layer

     The physical layer of the Internet FWA air interface uses digital time
     division multiplex/time division multiple access (TDM/TDMA) with a 10-slot
     frame structure. Uplink and downlink carriers are paired, and separated by
     a fixed duplex spacing of 99.84MHz. A TDM/TDMA channel (i.e. one time-slot
     one on one RF carrier) is known as a physical channel. In the maximum
     configuration, one ITS provides 18 pairs of RF carriers, and 180 physical
     channels.

     The uplink carriers are contained within the frequency band 3425 MHz to
     3450 MHz, and the downlink carriers are contained within the frequency band
     3525 MHz to 3550 MHz.

     The modulation scheme for both the uplink and downlink direction is pi/4
     shifted differential quadrature phase shift keying ((pi)/4DQPSK) with a
     nominal symbol rate of [ * ] symbols/s. The gross data rate is [ * ]
     kbits/s per carrier.

                                     Page 6
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

     Reserved channels are used to allow contention access by terminals. These
     access channels are not available for carrying subscribers' voice or data
     traffic.

2.3.1.2 Channel plan

     The Internet FWA system operates over 78 RF channels, with a nominal
     channel spacing of 307.2 kHz. The lowest uplink channel (Ch. 2) has a
     nominal centre frequency of 3425.8944 MHz. The highest downlink channel
     (Ch. 79) has a nominal centre frequency of 3549.3888 MHz. The fixed duplex
     spacing is equivalent to 325 times the channel spacing.

2.3.1.3 MAC layer for PSTN traffic

     One physical channel is capable of carrying a single 32 kbit/s ADPCM
     circuit-switched connection, or one half of a 64 kbit/s PCM
     circuit-switched connection.

2.3.1.4 MAC layer for the Packet data service

     Physical channels can be allocated in groups of six to carry packet-mode
     traffic. One group of six physical channels is described as a packet
     channel.

2.3.2 RF performance of the ITS equipment

2.3.2.1 Maximum transmit power

     The maximum transmit power from the ITS is not less than 28 dBm for each
     carrier, measured at the antenna port of the TMU.

2.3.2.2 Transmitter implementation loss

     The transmitted signal from the ITS is a close approximation to an ideal
     (pi)/4DQPSK signal. The additional carrier to noise margin required to
     demodulate the practical transmitted signal, compared to an ideal signal is
     less than 1 dB.

     2.3.2.3 Spectrum due to modulation

     The spectrum due to modulation at the output of the ITS is as follows:

              ---------------------------------- -------------------------------
              Channel                            Mean power (dBc)
              ---------------------------------- -------------------------------
              N                                  0 dBc (by definition)
              N +/- 1                            <= -24.5 dBc
              N +/- 2                            <= -40 dBc
              N +/- 3                            <= -50 dBc
              Any other channel                  <= -60 dBc or -60 dBm
                                                 (whichever is greater)
              ---------------------------------- -------------------------------

                                     Page 7
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

     The mean power is measured using an ideal receiver with root-raised-cosine
     filtering with transition factor ((alpha)) = 0.4, and with the receiver
     tuned to the centre of the appropriate adjacent channel.

2.3.2.4 Minimum receiver sensitivity

     The receiver sensitivity for the ITS is not greater than -101.5 dBm,
     measured at the antenna port of the TMU, for a bit error ratio (BER) of
     10-3 before forward error correction. This measurement assumes an ideal
     transmitter.

2.3.2.5 Receiver selectivity

     The ITS receiver selectivity is specified in terms of the level of
     interfering signal consistent with a bit error ratio (BER) for the wanted
     signal of less than 10-3 before FEC. The interfering signal is assumed to
     be from a signal source with the ideal characteristics of the Internet FWA
     radio system, centered on the applicable adjacent channel. The wanted
     signal is assumed to be from a similar ideal source and set at a level 3 dB
     greater than the level required for BER = 10-3 in the absence of
     interference. The carrier to interference levels are as follows:

              ---------------------------------- -------------------------------
              Channel                            Carrier/Interference ratio
                                                 for BER = 10-3
              ---------------------------------- -------------------------------
              N                                  <= 14.4 dB
              N +/- 1                            <= -15.5 dB
              N +/- 2                            <= -58.5 dB
              Any other channel                  <= -84.5 dBc
              ---------------------------------- -------------------------------

2.3.3 RF performance of the RSS equipment

2.3.3.1 Maximum transmit power

     The maximum transmit power from the RSS is not less than 44.5 dBm EIRP in
     RF channels 8 to 73 inclusive, and not less than 41.5 dBm EIRP in the
     remaining channels. This transmit power specification applies to the
     complete RTU including the antenna.

2.3.3.2 Transmitter implementation loss

     The transmitted signal from the RSS is a close approximation to an ideal
     (pi)/4DQPSK signal. The additional carrier to noise margin required to
     demodulate the practical transmitted signal, compared to an ideal signal is
     less than 1 dB.

                                     Page 8
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

2.3.3.3 Spectrum due to modulation

     The spectrum due to modulation at the output of the RSS is as follows:

              -------------------------------- -------------------------------
              Channel                          Mean power (dBc)
              -------------------------------- -------------------------------
              N                                [ * ]
              N +/- 1                          [ * ]
              N +/- 2                          [ * ]
              N +/- 3                          [ * ]
              Any other channel                [ * ]
              -------------------------------- -------------------------------

     The mean power is measured using an ideal receiver with root-raised-cosine
     filtering with transition factor ((alpha)) = 0.4, and with the receiver
     tuned to the centre of the appropriate adjacent channel. The measured power
     is averaged over duration of the time-slot containing the uplink
     transmission.

2.3.3.4 Minimum receiver sensitivity

     The receiver sensitivity for the RSS is not greater than [ * ] dBm in RF
     channels 8 to 73 inclusive, and not greater than [ * ] dBm in the remaining
     channels. The received signal is measured at the connector of the RTU
     antenna, for a bit error ratio (BER) of 10-3 before forward error
     correction. This measurement assumes an ideal transmitter.

2.3.3.5 Receiver selectivity

     The RSS receiver selectivity is specified in terms of the level of
     interfering signal consistent with a bit error ratio (BER) for the wanted
     signal of less than 10-3 before FEC. The interfering signal is assumed to
     be from a signal source with the ideal characteristics of the Internet FWA
     radio system, centered on the applicable adjacent channel. The wanted
     signal is assumed to be from a similar ideal source and set at a level 3 dB
     greater than the level required for BER = 10-3 in the absence of
     interference. The carrier to interference levels are as follows:

              ---------------------------------- -------------------------------
              Channel                            Carrier/Interference ratio for
                                                 BER = 10-3
              ---------------------------------- -------------------------------
              N                                  [ * ]
              N +/- 1                            [ * ]
              N +/- 2                            [ * ]
              N +/- 3                            [ * ]

                                     Page 9
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

              ---------------------------------- -------------------------------
              Channel                            Carrier/Interference ratio for
                                                 BER = 10-3
              ---------------------------------- -------------------------------
              N +/- 4                            [ * ]
              N +/- 5                            [ * ]
              Any other channel                  Blocking specification applies
              ---------------------------------- -------------------------------

2.3.3.6 RSS receiver dynamic range

     The dynamic range of the RSS receiver is from the limit of sensitivity to
     -20 dBm, measured at the antenna connector of the RTU. Over this dynamic
     range the BER of the received signal (measured before forward error
     correction) is not greater than 10-3.

2.3.3.7 RSS antenna gain

     The gain of the RSS antenna is between [ * ] dBi and [ * ] dBi at the peak
     of the response. The nominal beamwidth is 14 degrees (i.e. +/- 7 degrees).
     The rejection of cross-polar signals in the main antenna response is not
     less than 20 dB compared to a co-polar signal of identical level. The
     maximum level of side-lobe responses is [ * ] dBi, and this limit applies
     at azimuth angles from 22 degrees to 338 degrees with respect to the peak
     response.

2.3.4 Automatic power control

     To minimise interference in the network, the system incorporates automatic
     uplink RF power control whereby the ITS attempts to maintain a constant
     received signal strength (RSSI) of -80dBm for each active call or packet
     connection. If the RSSI strays from this target, the ITS will send a
     message to the appropriate RSS requesting an appropriate modification to
     the uplink RF power. The ITS normally integrates the RSSI over a 30s period
     before deciding whether an adjustment is required although there is a
     faster attack period at the start of a call or packet connection. At the
     end of a call or connection, the RSS calculates a new RF power that will be
     used to initiate the next call or connection on the same RF channel.

     To maintain an appropriate initial uplink RF power level during extended
     periods of call inactivity, network test calls are automatically scheduled
     to each RSS on each of its operating channels. Just as is the case for
     normal calls, the uplink RF power is adjusted appropriately at the end of a
     network test call. The scheduling period is normally set to 23 hours.

2.3.5 Combining diversity

     In ITS configurations with 2 or more TMUs per sector, the system is
     configured to execute two-path maximum ratio combining in the uplink. The
     implementation of this feature delivers the theoretical benefit of maximum
     ratio combining with less than 1 dB implementation loss.

     The TMU receiver is wideband and covers all of the uplink spectrum. This
     means that the IF signals from 2 TMUs in the same sector differ only by
     virtue of being received from

                                    Page 10
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

     2 physically separated antennas. The two I.F signals are fed to separate
     arms of each receiver pair of every TBM in the sector. The TBM hosts three
     such receiver pairs where each pair is configured to an appropriate
     channel. The maximum ratio combining algorithm is executed independently on
     each receiver pair.

2.3.6 Dynamic carrier list management

     Dynamic carrier list management feature allows each RSS to modify the
     classification of individual RF carriers in response to periodic
     measurements of the received (downlink) signal. Each RSS notifies the ITS
     of changes in carrier classification, allowing the ITS to allocate channels
     with a priority reflecting the recent quality of downlink carriers. This
     feature has proven to be effective in combating the effects of static
     frequency-selective fading, and minimizing the impact of downlink radio
     interference from nearby RBSs in the same network. This feature is
     extremely valuable in networks where tri-sector and tri/hex-sector RBSs are
     built in adjacent or nearby cells.

2.4  Equipment configurations

2.4.1 RBS configurations

     RBS configurations that can be constructed using SR14 consist of one, two
     or three ITSs. The table below lists the configurations that can be used.

<TABLE>
<CAPTION>

              ------------------------------------------- ------------------ --------- ---------- ------------
              Base station configuration                  ITS sector
                                                          organisation         Circuit- Packet-    Maximum
                                                                               switched switched   number
                                                                               E1s      E1s        of  E1
                                                                                                   connections
              ------------------------------------------- ------------------ --------- ---------- ------------
<S>           <C>                                         <C>                <C>       <C>        <C>
              18-carrier, tri-sector, Type I              6.6.6              6         0, 2       8
              ------------------------------------------- ------------------ --------- ---------- ------------
              26-carrier, tri-sector, Type II             6.6.5              6         0, 2       11
              ------------------------------------------- ------------------ --------- ---------- ------------
                                                          3.3.3              3         0
              ------------------------------------------- ------------------ --------- ---------- ------------
              26-carrier, tri-sector, Type III            9.8                6         0, 2       13
              ------------------------------------------- ------------------ --------- ---------- ------------
                                                          9                  3         0, 2
              ------------------------------------------- ------------------ --------- ---------- ------------
              26-carrier, tri-sector, Type IV             9.9                6         0, 2       13
              ------------------------------------------- ------------------ --------- ---------- ------------
                                                          8                  3         0, 2
              ------------------------------------------- ------------------ --------- ---------- ------------
              27-carrier, tri-sector, Type I              6.6.6              6         0, 2       11
              ------------------------------------------- ------------------ --------- ---------- ------------
                                                          3.3.3              3         0
              ------------------------------------------- ------------------ --------- ---------- ------------
              27-carrier, tri-sector, Type II             9.9                6         0, 2       13
              ------------------------------------------- ------------------ --------- ---------- ------------

                                    Page 11
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

              ------------------------------------------- ------------------ --------- ---------- ------------
              Base station configuration                  ITS sector
                                                          organisation         Circuit- Packet-    Maximum
                                                                               switched switched   number
                                                                               E1s      E1s        of  E1
                                                                                                   connections
              ------------------------------------------- ------------------ --------- ---------- ------------
                                                          9                  3         0, 2
              ------------------------------------------- ------------------ --------- ---------- ------------
              48-carrier, tri/hex-sector                  6.6.4              5         0, 2       21
              ------------------------------------------- ------------------ --------- ---------- ------------
                                                          6.6.4              5         0, 2
              ------------------------------------------- ------------------ --------- ---------- ------------
                                                          6.6.4              5         0, 2
              ------------------------------------------- ------------------ --------- ---------- ------------

</TABLE>

     The column `ITS sector organization' denotes the number of RF carriers than
     are enabled in each sector. No relationship is implied between the position
     of the elements of this list and the numbering of ITS sectors; thus a
     sector organization of 6.6.5 applies equally to configurations where the
     five-carrier sector is ITS sector 1, 2 or 3.

     The tri/hex configuration is described as 6.6.4. The six-carrier sectors
     are associated with the hex-sectored antennas, and the four-carrier sector
     is associated with the tri-sectored antennas. By default, the tri-sector is
     ITS sector 1.

     The following rules apply:

     o    Where PDS is required at an ITS, two TPM-PDs must be fitted.

     o    Each TPM requires one E1 connection between the ITS and the local
          exchange.

     o    Each TPM-PD requires one E1 connection between the ITS and the service
          gateway.

          Some of the base station configurations make use of more than one ITS.
          PDS can be enabled or disabled on a `per-ITS' basis, and so it is
          possible to create a multi-ITS configuration where only one or two of
          the ITSs has PDS enabled.

2.4.2 PSTN traffic capacity

     The PSTN traffic capacity of the supported RBS configurations is detailed
     in the table below. Note these figures apply where PDS is not provided; the
     PSTN capacity of an ITS with PDS is necessarily lower.

                                    Page 12
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

<TABLE>
<CAPTION>

              ---------------------------------------------- -------------------------------------------------
              Base station configuration                     Reference capacity (E)
              ---------------------------------------------- -------------------------------------------------
                                                             Soft sector = 0%        Soft sector = 10%
              ---------------------------------------------- ----------------------- -------------------------
<S>           <C>                                            <C>                     <C>
              18-carrier, tri-sector, Type I                 [ * ]                   [ * ]
              ---------------------------------------------- ----------------------- -------------------------
              26-carrier, tri-sector, Type III & IV          [ * ]                   [ * ]
              ---------------------------------------------- ----------------------- -------------------------
              27-carrier, tri-sector, Type II                [ * ]                   [ * ]
              ---------------------------------------------- ----------------------- -------------------------
              48-carrier, tri/hex-sector                     [ * ]                   [ * ]
              ---------------------------------------------- ----------------------- -------------------------

</TABLE>

     The reference capacity is defined as the capacity at 1% probability of
     blocking for long ADPCM calls, with the optimum distribution of traffic
     loading between ITS sectors.

     The soft-sector capacity assumes that 10% of the traffic loading arises
     from subscribers in the overlap regions between sectors, and that the
     soft-sectored load is distributed evenly between three overlap regions
     (3.3% of the total load in each overlap). In 26-carrier RBSs of type III
     and IV, and 27-carrier RBSs of type II, there is only one overlap region
     where a benefit is derived from soft sectoring; in these cases, the
     capacity gain is relatively small. In the tri/hex-sectored ITS,
     soft-sectoring is not enabled between hex-sectors.

     One ITS with V5.2 interface can support a maximum of 2048 PSTN lines, and a
     maximum of 2048 RSSs.

2.4.3 Packet data traffic capacity

2.4.3.1 Number of packet channels at an ITS

     Packet channels at an ITS can be configured subject to the following rules:

     o    Packet data can be supported by ITSs with sector arrangement 6.6.6,
          6.6.5, 8, 9, 9.8, 9.9, 6.6.4 (tri/hex)

     o    All packet channels consist of 6 physical channel pairs

     o    An ITS that supports PDS has two TPM-PDs

     o    One TPM-PD may support zero to four packet channels inclusive

     o    One ITS supports a maximum of 36 physical channels (i.e. six packet
          channels)

     o    The largest packet partition allowed in one sector is three packet
          channels

     o    In bi-sector or tri-sector ITSs, if the ITS provides PDS then each
          sector must have at least one packet channel

     o    In a tri-sector ITS, the sum of the number of packet channels in the
          smallest two packet partitions must not exceed four. This ensures that
          sectors will not be split across TPM-PDs.

                                    Page 13
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

2.4.3.2 Number of simultaneous PPP and MAC connections

     The packet data service supports a maximum of:

     o    700 packet data subscribers per ITS

     o    [ * ] simultaneous PPP connections per ITS

     o    [ * ] simultaneous active MAC connections per packet channel

     o    [ * ] simultaneous active MAC connections per TPM-PD

     o    [ * ] simultaneous active MAC connections per ITS

2.4.3.3 Traffic capacity of a packet channel

     Each packet channel (consisting of six physical channels) provides a shared
     channel with an aggregate capacity for users' packet data traffic of not
     less than [ * ] kbps in the downlink direction, and not less than 84 kbps
     in the uplink direction. PPP, TCP and IP headers applied at the users'
     computers are assumed to form part of the useful throughput.

2.4.3.4 Peak throughput for a single PDS user

     The peak throughput for a single user is approximately 96 kbps in the
     downlink direction (using the USB interface) and approximately 92 kbps in
     the downlink direction (using the RS-232 interface). The peak throughput
     for a single user is approximately 42 kbps in the uplink direction.

     Note that these are peak figures, and apply when the user has exclusive use
     of three physical channels. In normal operation, the packet channel
     capacity is shared between a number of users, and mean throughput figures
     for individual users will be lower than these peak values. The operator
     must ensure that sufficient packet channels are configured to offer
     reasonable quality of service to packet data subscribers.

2.4.3.5 Reduction in PSTN capacity

     The remaining PSTN traffic capacity at an RBS with packet data service is
     defined in the following table. These figures assume that 10% of the
     offered traffic is from soft-sectored terminals.

<TABLE>
<CAPTION>

              -------------------------------------- -------------------------------------------------
              Base station configuration             Reference capacity (E)
              -------------------------------------- -------------------------------------------------
                                                     One packet channel in   Two packet channels in
                                                     each sector             each sector
              -------------------------------------- ----------------------- -------------------------
<S>           <C>                                    <C>                     <C>
              26-carrier, tri-sector, Type III & IV  194.0                   178.0
              -------------------------------------- ----------------------- -------------------------

                                    Page 14
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

              -------------------------------------- -------------------------------------------------
              Base station configuration             Reference capacity (E)
              -------------------------------------- -------------------------------------------------
                                                     One packet channel in   Two packet channels in
                                                     each sector             each sector
              -------------------------------------- ----------------------- -------------------------

              48-carrier, tri/hex-sector             327.0                   279.0
              -------------------------------------- ----------------------- -------------------------

</TABLE>

2.5  External interfaces

2.5.1 ITS to transmission system

     The interface between the ITS and the transmission system is defined by
     ITU-T G.703 11/2001, `Physical/electrical characteristics of hierarchical
     digital interfaces'. Only the interface at 2048 kbit/s is supported in
     Internet FWA.

     As an additional requirement, Internet FWA requires that the long-term
     frequency accuracy of the E1 signal from the transmission system is better
     than 10-7 (0.1 ppm). Transmission equipment does not normally re-time
     digital traffic, and so this frequency accuracy is usually dependent on
     correct configuration of the local exchange (for PSTN connections) or the
     packet data network.

     Internet FWA complies with ITU-T G.823, `The control of jitter and wander
     within digital networks which are based on the 2048 kbit/s hierarchy'.

2.5.2 ITS to local exchange

     The framing structure of the signal between the ITS and the local exchange
     is defined by ITU-T G.704 10/1998, `Synchronous frame structures used at
     1544, 6312, 2048, 8448 and 44 736 kbit/s hierarchical levels', and ITU-T
     G.706 04/1991, `Frame alignment and cyclic redundancy check (CRC)
     procedures relating to basic frame structures defined in Recommendation
     G.704'.

     The voice coding for circuit-switched traffic complies with ITU-T G.711
     11/1988, `Pulse code modulation (PCM) of voice frequencies'.

     Signaling between the ITS and the local exchange uses the V5.2 protocol,
     defined in the ETSI V5.1 Specification ETS 300 324-1, V 1.2.2,
     `V-Interfaces at the digital local exchange (LE) - V5.1-Interface (based on
     2048 kbit/s) for the support of access network (AN)', and ETSI V5.2
     Specification ETS 300 347-1, V 2.1.2, `V-interfaces at the digital local
     exchange (LE) - V5.2 interface (based on 2048 kbit/s) for the support of
     access network (AN)'. Only requirements for PSTN services apply to Internet
     FWA.

2.5.3 ITS to packet data network

     Internet FWA requires that the E1 signal from the packet data network must
     comply with the framing structure defined in ITU-T G.704 (see above for a
     detailed reference). Time-slot zero contains a frame synchronization
     signal, and the remaining 31 time-slots are joined together to provide a
     connection with an aggregate capacity of 1984 kbit/s.

                                    Page 15
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

     The layer-2 tunnel between the ITS and the packet data network uses a
     protocol stack consisting of the point-to-point protocol (PPP), Internet
     protocol (IP), user datagram protocol (UDP) and the layer-2 tunneling
     protocol (L2TP). These protocols are defined as follows:

     o    PPP: Internet engineering task force (IETF) STD 51, `The point to
          point protocol'

     o    IP: IETF RFC 791, `Internet protocol'

     o    UDP: IETF RFC 768, `User datagram protocol'

     o    L2TP: IETF RFC 2661, `Layer two tunnelling protocol (L2TP)'

2.5.4 RDA to PC

     The RDA provides a choice of two different serial data standards at the
     PC-RDA interface:

     o    Asynchronous serial interface (commonly known as RS-232) as defined in
          ANSI/TIA/EIA-232-F-1997, Interface Between Data Terminal Equipment and
          Data Circuit-Terminating Equipment Employing Serial Binary Data
          Interchange, and

     o    Universal Serial Bus (USB), using the `full-speed' option, as defined
          in Universal Serial Bus specification, Rev. 1.1 and USB class
          definitions for communications devices, Rev. 1.0.

2.5.5 Shortly after the introduction of the New F6 RSS unit the RDA will be
     replaced with a dongle that will provide the same functionality as the
     existing RDA unit.

2.6. Additional Specifications

2.6.1 In addition to the Product's Specifications set forth in this Annex D, the
     Parties agree to include as part of this Annex D the Product's
     Specifications that will be set forth in the Compact Discs to be named as:
     (i) Internet Fixed Wireless Access, MR 14.0.3 "Customer Documentation
     Suite" and (ii) Internet Fixed Wireless Access, Maintenance Release MR
     14.0.3 System Line Up that will be delivered with MR14.03 in February 2003.

2.6.2 New RSS Unit

Summary of the RSS changes
The new Proximity RSS Unit shall have the same form, function and fit of both of
the current RSS Equipment jointly (the F2 and F5 based RSS equipment), pursuant
the specifications provided to Axtel by Airspan and Nortel Networks (as the
former manufacturer). The New RSS Unit will be known as the F6.

The changes are summarised as follows:

     o    Airspan shall supply a single variant of the RSS. In particular, all
          RTUs will contain a packet data interface suitable for interconnection
          with the existing RDA.

                                    Page 16
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

     o    The 48 volt indoor power supply, known as the RPCU, shall be revised
          to remove unused functionality.

     o    The RTU environmental specification shall be changed so that the low
          operating temperature limit will be -20 C rather than -40 C.

     o    The New RSS will incorporate the original Drop Cable Connector (NTEG
          99GR)

Single variant RSS
In accordance with the Amendment Agreement No2, all New RSS Units will be
supplied with a packet data interface, i.e. the RSS will be `packet data ready'.
This will potentially enable Axtel to supply existing subscribers requesting the
packet data service with an RDA or equivalent device without the need for
replacing the RTU.

48 volt indoor power supply
It had been agreed that a revised solution for the indoor power supply will be
supplied. A number of solutions are possible, but relative to the current RPCU,
the following specification changes are included:

     o    Eliminate the mains buzzer functionality, which is understood to be
          disabled by the Axtel installation teams.

     o    Remove the 2 secondary RJ11 sockets: It is understood that a remote
          RJ11 Box is the preferred Axtel method of installation.

     o    Restrict the mains input voltage to Mexican requirements: The current
          RPCU is designed for the global marketplace and operates with input
          voltages from 85volts to 270volts ac. The power supply will be
          redesigned specifically to suit Mexican requirements (88volts to 132
          volts ac). Output power ratings will remain unchanged.

     o    The RPCU plastics material will remain essentially unchanged, but will
          incorporate additional spacer/wider lugs and the blanking of the fins
          to reduce the likelihood of Water and Bug.

Should there be any changes in mechanical form of the power supply, these will
be agreed with Axtel in due course.

Change to RTU lower operating temperature limit
The RTU environmental specification will be changed so that the low operating
temperature limit will be -20 C rather than -40 C. This is believed to be
acceptable for deployments in Mexico.

Single outer sheath drop cable
For the avoidance of doubt there will be no change to the existing
specification, which already states the dual outer sheath drop cable.

F6 support in SR14.2
The F6 RTU will require a new software image and support for this will be
provided in the SR14.2 system release.

                                    Page 17
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex D -Product Specifications
Purchase and License Agreement for FWA Equipment-December 2004

--------------------------------------------------------------------------------

Others
A separate label will be added to the RTU to distinguish between and F6 from
other RTU's

                                    Page 18
<PAGE>

Annex E
Purchase and License Agreement for FWA Equipment  (Dec 2004)

--------------------------------------------------------------------------------

                                     Annex E

                               FWA Order Procedure

                                     Page 1
<PAGE>

Annex E
Purchase and License Agreement for FWA Equipment  (Dec 2004)

--------------------------------------------------------------------------------

ORDER PROCEDURE

1 Purchase Order Procedure

Airspan and Axtel agree that a Purchase Order must be issued and delivered in
order to proceed with the supply of any Product or Service for the purposes of
this Agreement.

The Purchase Order will be issued either according to prices established in
Annex F- FWA Prices - of this Agreement or according to a specific quotation
provided by Airspan for those cases in which the prices are not stated in such
Annex. Airspan is not obliged to quote or deliver any service or material not
included in Annex C - Description of Products.

1.1 Request for Quotation

Applicable for Products and Services not included in Annex C - Description of
Products. Axtel will request the quotation in writing in a mutually agreed
format and containing the following minimum information:

a)       Supplier Part or Service Number if available
b)       Manufacturer Part Number if different to supplier
c)       Part or Service Description
d)       Quantity
e)       Unit of Measure
f)       Requested Deliver Time or Date
g)       Delivery Location when applicable
h)       Part Number (Serial Profile applicable)

1.2 Delivery of quotation by Supplier

Airspan will provide the quotation in accordance with the terms set forth below.

The quotation will be submitted to Axtel's Purchasing Department and
Strategic Negotiations Department in writing within a reasonable period of time,
depending on the complexity of the quote referred, duly signed by Supplier Sales
Representative and containing the following information:

     a)   Supplier Quotation Number

     b)   Supplier Part or Service Number

     c)   Manufacturer Part Number if different to Supplier's

     d)   Part or Service Description

     e)   Quantities

     f)   Unit of Measure

                                     Page 2
<PAGE>

Annex E
Purchase and License Agreement for FWA Equipment  (Dec 2004)

--------------------------------------------------------------------------------

     g)   Part Number (Serial Profile applicable)

     h)   Unit Price as defined in Annex F of the Agreement (Price of Unit of a
          part number may be a part of a package or the price when Axtel want to
          buy separate)

     i)   Extended Price

     j)   Warranty Terms and Conditions if applicable

     k)   Payment Terms

     l)   Expiration Date

     m)   Delivery Time per Item

     n)   Delivery Site or Delivery Location when applicable

     o)   Agreement Name

1.3  Submission of Purchase Orders - General

                    Axtel will submit the Purchase Order in accordance with the
                    terms set forth below

Purchase Orders shall be submitted in a mutually agreed format or media to the
Airspan Commercial Representative, duly signed by an authorized Axtel
representative and containing the following minimum information:

     a)   Purchase Order Number

     b)   Purchase Order Date

     c)   Supplier Quotation Number if applicable

     d)   Requested Delivery Date per each item e) Axtel Part Number

     f)   Supplier Part or Service Number as per Annex C or quotation

     g)   Manufacturer Part Number if different to Supplier when applicable

     h)   Part or Service Description

     i)   Quantities per each item

     j)   Unit of Measure

     k)   Unit Price as defined in Annex F of the Agreement

     l)   Extended Price

     m)   Billing Instructions

     n)   Payment Terms as per signed Agreement

     o)   Shipping Instructions and Delivery Location

     p)   Agreement Name

     q)   Wording expressing "Purchase Order 100% binding and non-cancelable"

     r)   Wording referencing Terms and Conditions to Agreement signed

     s)   Special wording when applicable

Airspan shall acknowledge receipt in writing of the Purchase Order within five
(5) business days after received.

Airspan shall accept such Purchase Order in accordance with the terms set forth
in Section 2 of the Agreement.

                                     Page 3
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Annex E
Purchase and License Agreement for FWA Equipment  (Dec 2004)

--------------------------------------------------------------------------------

1.4 Address and Times for Submission of Purchase Orders

Purchase Orders shall be submitted to Airspan Commercial Representative at the
following address:

Guy Insley
Airspan Networks Inc
777 Yamato Road,
Suite 105
Boca Raton
Fl, 33431

In the event of a change of the address, Airspan will advise Axtel thereof in
writing.

2 FWA Product Delivery Times

Product Delivery times are indicated in Annex J .

2.1 Product Delivery

Within three business days after Final Ship Date:

a)   Axtel's freight representative shall collect the Products at the Airspan
     factory or designated warehouse, as applicable and shall sign the
     corresponding Freight Bill which will constitute the sole Proof of Delivery
     (the "Product Delivery").

b)   If, for whatever reason, the customer's freight representative does not
     collect the Products within the aforementioned period of three business
     days, Delivery of the products shall be deemed 100% complete (the "Product
     Delivery"). In such case, Proof of Delivery shall be the unsigned Freight
     Bill.

3  Intentionally left in blank

4 Invoicing

4.1 Product Invoicing

Airspan will submit the invoice in accordance with the terms set forth in
Section 5 of the Agreement.

                                     Page 4
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Annex E
Purchase and License Agreement for FWA Equipment  (Dec 2004)

--------------------------------------------------------------------------------

Within the next five (5) business days after the delivery by Axtel to Airspan of
a Purchase Order which is in compliance with Section 2 of this Contract, Airspan
shall deliver to Axtel an invoice for one hundred percent (100%) of the purchase
price of such Order.

Airspan' original invoices will be delivered to Axtel's Accounts Payable
department with a copy to the Axtel Purchasing representative. Axtel will
immediately acknowledge receipt of invoices by stamping a copy as "received" and
returning it to Airspan.

4.2 Services Invoicing

Airspan shall invoice Axtel for Services in accordance with section 5 of the
Agreement.

4.3 Invoicing General

All invoices shall be issued containing the following minimum information and
requirements:

     a)   Official name and address of Axtel as follows:
          Axtel S.A. de C.V.
          Blvd. Diaz Ordaz Km. 3.33 L-1
          Col . Unidad San Pedro San Pedro Garza Garcia, N.L.
          Mexico 66215
          RFC: AXT-940727-FP8

     b)   Purchase Order Number (s)

     c)   Invoice Number

     d)   Invoice date

     e)   Supplier Quotation Number if applicable

     f)   Supplier Part or Service Number if applicable

     g)   Axtel part Number.

     h)   Manufacturer Part Number if different to Supplier when applicable

     i)   Part or Service Description

     j)   Quantities per each item

     k)   Unit of Measure

     l)   Unit Price for Equipment or Services.

     m)   Extended Price for Equipment or Services.

     n)   Payment Terms

     o)   Delivery Location for Services when applicable

     p)   Agreement Name

     q)   Supplier Name and Address

     r)   Service Receipt Acceptance Number or Good Receipt Acceptance Number as
          applicable.

5 Equipment Shipping Instructions, Shipping Documents and Goods Receipt.

All shipments shall be consigned according to the Purchase Order or Change
Order.

                                     Page 5
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Annex E
Purchase and License Agreement for FWA Equipment  (Dec 2004)

--------------------------------------------------------------------------------

Airspan shall submit a copy of the following documentation via fax to Axtel's
Purchasing Department immediately after Delivery.

     o    Proof of Delivery

     o    Packing List.

     o    Packing List including the material part number that Axtel and Aisrpan
          manage with a serial number.

     o    Certificate of Origin (NAFTA Certificate, if it applies)

     o    Copy of Original Invoice

For purposes of the Agreement, the Delivery Date of the products shall be deemed
the date on which Airspan delivers via fax to Axtel the documents mentioned
above.

A copy of the following documentation should be attached to the shipment:

     o    Copy of Original Invoice

     o    Packing List with product serial number when applicable

     o    Certificate of Origin (NAFTA Certificate, if it applies)

During the following ten (10) days after Delivery Date, Axtel shall issue a
Goods Receipt document that shall contain at least the following information:

     o    Document Date

     o    Purchase Order Number (s)

     o    Invoice Number(s)

     o    Delivery Date

     o    Acceptance Note and Goods Receipt Number

     o    Refusal Note describing the reasons in writing (if applicable) in
          accordance with the terms of the Agreement

If after ten (10) days from Delivery Date, Axtel has not delivered to Airspan
such Goods Receipt document, it will be deemed that Axtel has accepted the
shipment and it will be deemed that there are no Non-Compliant products in such
shipment.

Partial deliveries shall only be allowed such as stated in Annex J and section
5.4 of the Agreement.

6 Services Acceptance

In the event of Services, during the following ten (10) Business Days after
completion of the Services by Supplier, Axtel shall issue a Service Acceptance
Notification to Supplier that should contain at least the following information:

     o    Document Date

     o    Purchase Order Number

     o    Date of Service Completion

                                     Page 6
<PAGE>

Annex E
Purchase and License Agreement for FWA Equipment  (Dec 2004)

--------------------------------------------------------------------------------

     o    Acceptance Note and Service Receipt Acceptance Number

     o    Refusal Note describing the reasons in writing (if applicable)

If after ten (10) Business Days, Axtel has not delivered to Airspan such Service
Acceptance Notification, it will be deemed that Axtel has accepted the provided
Services and Airspan will invoice Axtel.

                                     Page 7
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex F - Prices
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

                                     Annex F

                                   FWA Prices

                                     Page 1
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex F - Prices
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

                                     Annex F
                                   FWA Prices

1.0  Document Scope.

This document details the definition and pricing of the FWA equipment to be
supplied by Airspan to AXtel as per the "FWA Supply Agreement". All prices are
in US dollars. CIP for RSS & RIS are quoted as @ Airspan American consolidation
warehouse for Mexico (currently Texas, USA). Ex-works terms for RBS & FET are
quoted @ Airspan RBS manufacturing site (currently Dumfermline Scotland) and
Ex-works terms for REM are quoted @ Airspan REM integration site (currently
Dumfermline Scotland).

2.0  Customer Premise Equipment Kits.

2.1  Customer Premise Equipment Kits (CPE).

An F5 RSS Kit is defined as follows for Orders for Delivery from April 1st 2005
(RDA Kit excluded):

<TABLE>
<CAPTION>

-------------------- ------------------------------------------------ ------- -------------------
        PEC                            Description                     Qty.   Ext. Price CIP USD
-------------------- ------------------------------------------------ ------- -------------------
<S>                  <C>                                              <C>
NTEG18DA             F5 RTU                                           1
-------------------- ------------------------------------------------ ------- -------------------
NTEG12FA             RPCU                                             1
-------------------- ------------------------------------------------ ------- -------------------
A0636762             RPCU Battery                                     1
-------------------- ------------------------------------------------ ------- -------------------
NTEG12CL             RPCU Power Cord                                  1
-------------------- ------------------------------------------------ ------- -------------------
NTEG12FB             RPCU Safety Booklet                              1
-------------------- ------------------------------------------------ ------- -------------------
NTEG99JE             Drop Cable (500m)                                0.04
-------------------- ------------------------------------------------ ------- -------------------
NTEG99GR             Drop Cable Connector (50)                        0.02
-------------------- ------------------------------------------------ ------- -------------------
NTEG99CZ             Drop Cable Connector Pins (500)                  0.02
-------------------- ------------------------------------------------ ------- -------------------
                                                                                    $[ * ]
----------------------------------------------------------------------------- -------------------

</TABLE>

Prior to Orders for Delivery from April 1st 2005, an F5 Kit includes the RDA at
a price of $[ * ]

An F5v2 Analog RSS Kit is defined as follows, with pricing effective for Orders
for Delivery from 1st April 2005:

<TABLE>
<CAPTION>

-------------------- ------------------------------------------------ ------- -------------------
        PEC                            Description                     Qty.   Ext. Price CIP USD
-------------------- ------------------------------------------------ ------- -------------------
<S>                  <C>                                              <C>
NTEG18DB             F5v2 Analog RTU                                  1
-------------------- ------------------------------------------------ ------- -------------------
NTEG12FA             RPCU                                             1
-------------------- ------------------------------------------------ ------- -------------------
A0636762             RPCU Battery                                     1
-------------------- ------------------------------------------------ ------- -------------------
NTEG12CL             RPCU Power Cord                                  1
-------------------- ------------------------------------------------ ------- -------------------
NTEG12FB             RPCU Safety Booklet                              1
-------------------- ------------------------------------------------ ------- -------------------
NTEG99JE             Drop Cable (500m)                                0.04
-------------------- ------------------------------------------------ ------- -------------------
NTEG99GR             Drop Cable Connector (50)                        0.02
-------------------- ------------------------------------------------ ------- -------------------
NTEG99CZ             Drop Cable Connector Pins (500)                  0.02
-------------------- ------------------------------------------------ ------- -------------------
                                                                                    $[ * ]
----------------------------------------------------------------------------- -------------------

</TABLE>

                                     Page 2
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex F - Prices
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

Prior to Orders for Delivery from April 1st 2005 F5v2 Analog RSS Kit price is $
[ * ]

An F6 Single Model RSS Kit is defined as follows pricing effective Orders for
Delivery from 1st April 2005

<TABLE>
<CAPTION>

-------------------- ------------------------------------------------ ------- --------------------------
        PEC                            Description                     Qty.      Ext. Price CIP USD
-------------------- ------------------------------------------------ ------- --------------------------
<S>                  <C>                                              <C>
NTEG19DE             F6 RTU                                           1
-------------------- ------------------------------------------------ ------- --------------------------
NTEG12FA             RPCU                                             1
-------------------- ------------------------------------------------ ------- --------------------------
A0636762             RPCU Battery                                     1
-------------------- ------------------------------------------------ ------- --------------------------
NTEG12CL             RPCU Power Cord                                  1
-------------------- ------------------------------------------------ ------- --------------------------
NTEG12FB             RPCU Safety Booklet                              1
-------------------- ------------------------------------------------ ------- --------------------------
NTEG99JE             Drop Cable (500m)                                0.04
-------------------- ------------------------------------------------ ------- --------------------------
NTEG99GR             Drop Cable Connector (50)                        0.02
-------------------- ------------------------------------------------ ------- --------------------------
NTEG99CZ             Drop Cable Connector Pins (500)                  0.02
-------------------- ------------------------------------------------ ------- --------------------------
                                                                                       $[ * ]
----------------------------------------------------------------------------- --------------------------

</TABLE>

An RDA Kit for Orders for Delivery from 1st April 2005 is defined as follows:

<TABLE>
<CAPTION>

-------------------- ------------------------------------------------ ------- --------------------------
        PEC                            Description                     Qty.      Ext. Price CIP USD
-------------------- ------------------------------------------------ ------- --------------------------
<S>                  <C>                                                <C>
NTEG18FA             RDA or Dongle                                      1
-------------------- ------------------------------------------------ ------- --------------------------

-------------------- ------------------------------------------------ ------- --------------------------

-------------------- ------------------------------------------------ ------- --------------------------
                     Right to use fee of PD functionality included
-------------------- ------------------------------------------------ ------- --------------------------
                                                                                       $[ * ]
----------------------------------------------------------------------------- --------------------------

</TABLE>

2.2  Installation Brackets for any type of RSS.

Compact Mounting Bracket

<TABLE>
<CAPTION>

-------------------- ------------------------------------------------ ------- --------------------------
        PEC                            Description                     Qty.      Ext. Price CIP USD
-------------------- ------------------------------------------------ ------- --------------------------
<S>                           <C>                                       <C>      <C>
     NTEG19AJ                 Compact Mounting Bracket (10)             1
-------------------- ------------------------------------------------ -------
     NTEG99DC                  Mounting Coach Screw (200)             0.015
-------------------- ------------------------------------------------ -------
     NTEG99DD                        Washer M8 (200)                  0.015
-------------------- ------------------------------------------------ -------
     NTEG99DE                       Frame Fixing(200)                 0.015
-------------------- ------------------------------------------------ ------- --------------------------
                                                                                       $[ * ]
-------------------- ------------------------------------------------ ------- --------------------------

</TABLE>

                                     Page 3
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex F - Prices
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

3.0  Radio Basestation Kits

     Discrete Radio Basestation Configurations.

The following configurations and the associated pricing for Orders for Delivery
after December 31st 2004 are representative of a typical installation of RBS
Kits. Specific installations may require variations on these definitions for
which the vendor will provide revised pricing quotations at that time.

<TABLE>
<CAPTION>

------------------- ------------------------------------------------------- --------------- --------------
       PEC                               Description                           18b RBS         27b RBS
------------------- ------------------------------------------------------- --------------- --------------
<S>                 <C>                                                           <C>             <C>
     NTED4575       Transceiver Processor Module                                  5               7
------------------- ------------------------------------------------------- --------------- --------------
     NTEG72AD       Transceiver Baseband Module Combining Diversity               5               7
------------------- ------------------------------------------------------- --------------- --------------
     NTEG77EC       Transceiver Masthead Unit Kit                                 6               9
------------------- ------------------------------------------------------- --------------- --------------
     NTEG97PC       Antenna to TMU 4m Cable                                       6               9
------------------- ------------------------------------------------------- --------------- --------------
     NTEG94BD       1M Pre-Fit Cabinet                                            1               2
------------------- ------------------------------------------------------- --------------- --------------
     NTEG63AA       Transceiver Timer Module                                      0               0
------------------- ------------------------------------------------------- --------------- --------------
     NTEG73AA       Network Management Module                                     0               0
------------------- ------------------------------------------------------- --------------- --------------
     NTEG99CJ       TMU to Cabinet IF 1/2" cable  (500m)                         0.6             0.9
------------------- ------------------------------------------------------- --------------- --------------
     NTEG91BA       1/2" IF Cable Connector Kit                                   6               9
------------------- ------------------------------------------------------- --------------- --------------
     NTEG99CE       TMU to Cabinet Power cable (500m)                            0.6             0.9
------------------- ------------------------------------------------------- --------------- --------------
     NTEG93AA       Power Cable Connector Kit                                     6               9
------------------- ------------------------------------------------------- --------------- --------------
     NTEG99CA       TMU to Cabinet Data Cable (500m)                             0.6             0.9
------------------- ------------------------------------------------------- --------------- --------------
     NTEG92AA       Data Cable Connector Kit                                      6               9
------------------- ------------------------------------------------------- --------------- --------------
     NTEG97NE       60 Degree Vertical Polarization Antenna                       0               0
------------------- ------------------------------------------------------- --------------- --------------
     NTEG97ME       120 Degree Vertical Polarization Antenna                      6               9
------------------- ------------------------------------------------------- --------------- --------------
     NTEG94PA       120 0hms primary E1 Cable                                     1               2
------------------- ------------------------------------------------------- --------------- --------------
Ex-Works Price  USD                                                             $[ * ]         $[ * ]
--------------------------------------------------------------------------- --------------- --------------

</TABLE>

For clarity, NTEG94BD (1M Pre-Fit Cabinet) and NTEG77EC (Transceiver Masthead
Unit Kit) are defined as follows:

<TABLE>
<CAPTION>

------------------------------------------------------------------------------------------------------
                           NTEG94BD 1M Pre-Fit Cabinet
------------------------------------------------------------------------------------------------------
       PEC                                        Description                                  Qty.
------------------- ------------------------------------------------------------------------- --------
<S>                 <C>                                                                          <C>
NTED4575            TRANSCEIVER PROCESSOR MODULE                                                 1
------------------- ------------------------------------------------------------------------- --------
NTEG63AA            TRANSCEIVER TIMER MODULE                                                     2
------------------- ------------------------------------------------------------------------- --------
NTEG72AD            TRANSCEIVER BASEBAND MODULE COMBINING DIVERSITY                              1
------------------- ------------------------------------------------------------------------- --------
NTEG73AA            NETWORK MANAGEMENT MODULE                                                    1
------------------- ------------------------------------------------------------------------- --------
NTEG7762            CABINET CABLE SET TYPE 2                                                     1
------------------- ------------------------------------------------------------------------- --------
NTEG74BA            OVER-VOLTAGE PROTECTION MODULE                                               3
------------------- ------------------------------------------------------------------------- --------
NTEG76BA            ITS FAN TRAY ASSEMBLY                                                        1
------------------- ------------------------------------------------------------------------- --------
NTEG76CC            SECONDARY DC BREAKER RACK FILTERED                                           1
------------------- ------------------------------------------------------------------------- --------
NTEG76FB            I.T.S Basestation DIVERSITY SUB RACK                                         1
------------------- ------------------------------------------------------------------------- --------
NTEG76GA            I.T.S U.K MAINTENANCE PORT ASSEMBLY                                          1
------------------- ------------------------------------------------------------------------- --------
NTEG94AN            1.0M CABINET FLOOR MOUNTING PLINTH                                           1
------------------- ------------------------------------------------------------------------- --------
NTEG94FA            ALARM CONNECTOR BLOCK                                                        1
------------------- ------------------------------------------------------------------------- --------
NTEG94QA            1.0M INTERNAL I.T.S. CABINET                                                 1
------------------- ------------------------------------------------------------------------- --------

</TABLE>

                                     Page 4
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex F - Prices
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

-------------------------------------------------------------------------------
                     NTEG77EC Transceiver Masthead Unit Kit
-------------------------------------------------------------------------------
       PEC                            Description                       Qty.
------------------- ------------------------------------------------ ----------
NTEG77CA            T.M.U./T.A.S. GROUND BOND KIT                        1
------------------- ------------------------------------------------ ----------
NTEG77DA            SUN SHIELD ASSEMBLY                                  1
------------------- ------------------------------------------------ ----------
NTEG77GB            T.M.U. ASSY BF-BAND (100MHz)                         1
------------------- ------------------------------------------------ ----------
P0821020            U BOLT 61 C R S                                      2
------------------- ------------------------------------------------ ----------
P0821021            U BOLT 126 C R S                                     2
------------------- ------------------------------------------------ ----------
P0834843            T.M.U. MOUNTING BRACKET V3                           1
------------------- ------------------------------------------------ ----------

3.1  PDS Upgrade Configurations.

     The following configurations and the associated pricing are representative

<TABLE>
<CAPTION>

------------------- -------------------------------------------------- --------------------
       PEC                             Description                         PDS Upgrade
------------------- -------------------------------------------------- --------------------
<S>                 <C>                                                         <C>
     NTEG71HA       Transceiver processor Module - Packet Data                  2
------------------- -------------------------------------------------- --------------------
       N/A          Packet Data Software Activation Fee                         1
------------------- -------------------------------------------------- --------------------
Ex-Works Price USD                                                           $[ * ]
---------------------------------------------------------------------- --------------------

</TABLE>

4.0  FWA Software

<TABLE>
<CAPTION>

------------ -------------------------------------------------------- ------------ ---------------------
    PEC                            Description                           Qty.       Ex-Works Price USD
------------ -------------------------------------------------------- ------------ ---------------------
<S>           <C>                                                          <C>         <C>
    N/A       RMT Data Software Activation Fee                             1           To be Quoted
------------ -------------------------------------------------------- ------------ ---------------------

</TABLE>

5.0  FWA OA&M Equipment.

5.1  Field Engineering Terminal (FET).

Choose one of the following.

<TABLE>
<CAPTION>

------------------ ------------------------------------------------------ ---------- -------------------
       PEC                              Description                         Qty.       Ex-Works Price
                                                                                            USD
------------------ ------------------------------------------------------ ---------- -------------------
<S>                <C>                                                        <C>          <C>
    NTEG30AN       FET System Complete (LINUX)on  Panasonic CF27              1            $[ * ]
------------------ ------------------------------------------------------ ---------- -------------------
    NTEG30AF       LINUX FET Software Application Kit for Panasonic CF27      1            $[ * ]
------------------ ------------------------------------------------------ ---------- -------------------

</TABLE>

5.2  Residential Installation System (RIS).

Survey & Maintenance Kit

<TABLE>
<CAPTION>

-------------------- ------------------------------------------------------ -----------
        PEC                               Description                          Qty.
-------------------- ------------------------------------------------------ -----------
<S>                               <C>                                           <C>
     NTEG24BF                     100 MHz Generic Survey Kit                    1
-------------------- ------------------------------------------------------ -----------

                                     Page 5
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex F - Prices
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

    NTEG10DCBV              RSS Installation Sub-Set Documentation              1
-------------------- ------------------------------------------------------ -----------
     P0872025                             Large Belt                            1
-------------------- ------------------------------------------------------ -----------
     NTEG24BE            RTU SAK/Handle Pole Kit (5.5m extension kit)           1
-------------------- ------------------------------------------------------ -----------
     NTEG22EB                       RTU SAK/Handle Assembly                     1
-------------------- ------------------------------------------------------ -----------
     A0734347                                 GPS                               1
-------------------- ------------------------------------------------------ -----------
     A0658055                         Linesman Phone U.S.                       1
-------------------- ------------------------------------------------------ -----------
     NTEG24AA                   100MHz Generic Maintenance Kit                  1
-------------------- ------------------------------------------------------ -----------
     NTEG21ND                       PSA Mains Adapter U.S.                      1
-------------------- ------------------------------------------------------ -----------
     A0745625                       RMT Mains Adapter U.S.                      1
-------------------- ------------------------------------------------------ -----------
     A0657248                                Modem                              1
-------------------- ------------------------------------------------------ -----------
     A0655833                             Multimeter                            1
-------------------- ------------------------------------------------------ -----------
     NTEG21PB                       Vehicle charging Cable                      1
-------------------- ------------------------------------------------------ -----------
     A0743766                         RMT Docking Holster                       1
-------------------- ------------------------------------------------------ -----------
CIP                                                                           $[ * ]
Price USD
-------------------- ------------------------------------------------------ -----------

</TABLE>

5.3  Radio Element Manager (REM).

The following configuration is based on the original Model 3 REM but includes
additional functionality upgrades that were introduced during the previous
contract.

<TABLE>
<CAPTION>

-------------------- ----------------------------------------------------------------- -----------------
                                               Description                                   Qty.
-------------------- ----------------------------------------------------------------- -----------------
<S>                  <C>                                                                      <C>
     NTEG43AC        HP Unix Server                                                           1
-------------------- ----------------------------------------------------------------- -----------------
     NTEG41GD        HASS Functionality                                                       1
-------------------- ----------------------------------------------------------------- -----------------
     NTEG41GE        Dual Processor Functionality                                             1
-------------------- ----------------------------------------------------------------- -----------------
     NTEG43AA        HP Client Workstation                                                    1
-------------------- ----------------------------------------------------------------- -----------------
     NTEJ40BN        Radio Element Manager Software Platform                                  1
-------------------- ----------------------------------------------------------------- -----------------
     NTEG42BC        Network Hub 16 Slot Chassis,Fantray,Hipernmc, Dual Psu                   1
-------------------- ----------------------------------------------------------------- -----------------
     NTEG42FB        HyperARC                                                                 1
-------------------- ----------------------------------------------------------------- -----------------
     NTEG42GM        Quad Modem Card With S/Ware Type 1                                       1
-------------------- ----------------------------------------------------------------- -----------------
     NTEG43AD        Unix Server annual support                                               1
-------------------- ----------------------------------------------------------------- -----------------
     NTEG43AB        Client Workstation annual support                                        1
-------------------- ----------------------------------------------------------------- -----------------
     NTEJ40GC        Remedy ARS Support                                                       1
-------------------- ----------------------------------------------------------------- -----------------
     NTEJ40JC        Oracle RDBMS Support                                                     1
-------------------- ----------------------------------------------------------------- -----------------
     A0743702        Openview SW Support                                                      1
-------------------- ----------------------------------------------------------------- -----------------
     NTEG42KA        Network Hub Annual SW Maintenance                                        1
-------------------- ----------------------------------------------------------------- -----------------
     A0743715        SW support CLEO                                                          1
-------------------- ----------------------------------------------------------------- -----------------
Ex-Works Price USD                                                                          $[ * ]
-------------------- ----------------------------------------------------------------- -----------------

</TABLE>

6.0  FWA Equipment Spares.

<TABLE>
<CAPTION>

-------------------- ------------------------------------------------------ ---------- ---------------
        PEC                               Description                       Qty. Per      Ex-Works
                                                                                         Price USD
-------------------- ------------------------------------------------------ ---------- ---------------
<S>                  <C>                                                        <C>        <C>
     NTED4575        Transceiver Processor Module                               1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG72AD        Transceiver Baseband Module Combining Diversity            1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG77EC        Transceiver Masthead Unit Kit                              1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------

                                     Page 6
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex F - Prices
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

     NTEG97PC        Antenna to TMU 4m Cable                                    1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG76BA        I.T.S. Fan Tray Assembly                                   1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG76CC        Secondary DC Breaker Rack Filtered                         1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG76FB        I.T.S Basestation Diversity Sub Rack                       1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG76GA        I.T.S U.K. Maintenance Port Assembly                       1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG94QA        1.0M Internal ITS Cabinet                                  1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG74BA        Over Voltage Protection Module                             1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG63AA        Transceiver Timer Module                                   1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG73AA        Network Management Module                                  1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG99CJ        TMU to Cabinet IF 1/2" Cable                               500m         $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG91BA         1/2" IF Cable Connector Kit                                 1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG99CE        TMU to Cabinet Power Cable                               500m         $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG93AA        Power Cable Connector Kit                                  1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG99CA        TMU to Cabinet Data Cable                                500m         $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG92AA        Data Cable Connector Kit                                   1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG97ME        120 Degree Vertical Polarization Antenna                   1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG97MF        120 Degree Horizontal Polarization Antenna                 1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG97NE        60 Degree Vertical Polarization Antenna                    1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG97NF        60 Degree Horizontal Polarization Antenna                  1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG97NG        40 Degree Vertical Polarization Antenna (For orders        1          $[ * ]
                     of less than 120 units)
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG97NH        40 Degree Horizontal Polarization Antenna (For             1          $[ * ]
                     orders of less than 120 units)
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG97NG        40 Degree Vertical Polarization Antenna (For orders        1          $[ * ]
                     of more than 120 units)
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG97NH        40 Degree Horizontal Polarization Antenna (For             1          $[ * ]
                     orders of more than 120 units)
-------------------- ------------------------------------------------------ ---------- ---------------
     NTEG71HA        Transceiver Processor Module - Packet Data                 1          $[ * ]
-------------------- ------------------------------------------------------ ---------- ---------------

</TABLE>

<TABLE>
<CAPTION>

------------------ -------------------------------------------------------- ---------- -----------------
       PEC                               Description                        Qty. Per    Ext. Price CIP
                                                                                             USD
------------------ -------------------------------------------------------- ---------- -----------------
<S>                <C>                                                          <C>         <C>
    NTEG18DA       F5 RTU                                                       1           $[ * ]
------------------ -------------------------------------------------------- ---------- -----------------
    NTEG19DE       F6 RTU                                                       1           $[ * ]
------------------ -------------------------------------------------------- ---------- -----------------
    NTEG18FA       RDA Kit or Dongle                                            1           $[ * ]
------------------ -------------------------------------------------------- ---------- -----------------
    NTEG12FA       RPCU                                                         1           $[ * ]
------------------ -------------------------------------------------------- ---------- -----------------
    A0636762       RPCU Battery                                                 1           $[ * ]
------------------ -------------------------------------------------------- ---------- -----------------
    NTEG12CL       RPCU Power Cord                                              1           $[ * ]
------------------ -------------------------------------------------------- ---------- -----------------
    NTEG12FB       RPCU Safety Booklet                                          1           $[ * ]
------------------ -------------------------------------------------------- ---------- -----------------
    NTEG99JE       Dual Jacket Drop Cable                                     500m          $[ * ]
------------------ -------------------------------------------------------- ---------- -----------------

------------------ -------------------------------------------------------- ---------- -----------------
       PEC                               Description                        Qty. Per    Ext. Price CIP
                                                                                             USD
------------------ -------------------------------------------------------- ---------- -----------------
    NTEG99GY       Dual Jacket Drop Cable Connector                            50           $[ * ]
------------------ -------------------------------------------------------- ---------- -----------------
    NTEG99CZ       Drop Cable Connector Pins                                   500          $[ * ]
------------------ -------------------------------------------------------- ---------- -----------------
    NTEG17DA       F2 RTU or Substitute                                         1           $[ * ]
------------------ -------------------------------------------------------- ---------- -----------------

</TABLE>

                                     Page 7
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex F - Prices
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

For spares Orders greater than $100,000.00 a discount of [ ]% will be offered on
all RBS equipment.

                                     Page 8
<PAGE>

Annex G - Warranty Services
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

                                     ANNEX G

                           WARRANTY TERMS AND SERVICES

                                     Page 1
<PAGE>

Annex G - Warranty Services
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

                PURCHASE AND LICENSE AGREEMENT FOR FWA EQUIPMENT

                                     ANNEX G

This is the Annex "G" of the Purchase and License Agreement for FWA Equipment,
dated as of December 28, 2004 (the "Agreement"), entered into by and among
Airspan Communications Limited ("Airspan"), and Axtel, S.A. de C.V. ("Axtel").

                            PART ONE - WARRANTY TERMS

THE WARRANTIES EXPRESSLY SET FORTH IN THIS ANNEX "G" CONSTITUTE THE ONLY
WARRANTIES MADE BY AIRSPAN WITH RESPECT TO THE PRODUCTS. SUCH WARRANTIES ARE IN
LIEU OF ALL OTHER WARRANTIES AND CONDITIONS, WHETHER STATUTORY, EXPRESS OR
IMPLIED, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE.

1.1  Airspan warrants that the Products will be free from defects in materials
     and workmanship and will function substantially in accordance with the
     applicable specifications during the warranty period of twelve (12) months
     from the respective Delivery Date ("Warranty Period").

1.2  Airspan undertakes to promptly remedy pursuant the terms set forth in this
     Annex "G" all defects discovered in the Products within the Warranty Period
     and properly notified to Airspan in accordance with this Section. Repaired
     or replaced Products shall have a new warranty period of 180 days from the
     date of delivery to Axtel or up to the end of the original Warranty Period,
     whichever is longer.

1.3  Subject to the said Warranty Period(s), Airspan warrants that the Products,
     and any part thereof, will comply and function in accordance with the
     specifications set forth in Annex "D" of the Agreement and all of the
     requirements of the Agreement.

1.4  If an item of Product is or becomes defective during its Warranty Period,
     Airspan will at its option either repair or replace the item. In the event
     Airspan determines that repair or replacement as set forth in this Annex G
     cannot be made using commercially reasonable efforts (which determination
     shall be made within thirty (30) days after Airspan receives written notice
     from Axtel) Airspan will give Axtel a credit equal to the purchase price
     paid by Axtel for the Product, provided that Axtel has returned such
     Product to Airspan.

1.4.1 Axtel must return each defective item to Airspan, at an address to be
     advised by Airspan, no later than sixty (60) days after the end of its
     Warranty Period. When Axtel is required to return a defective Product to
     Airspan for warranty service, Axtel agrees to ship it prepaid and suitably
     packaged to the location designated by Airspan. In making such return,
     Axtel will comply with the procedures specified in Part Two of this Annex
     G. Airspan will repair or replace such defective item at no additional
     charge to Axtel and return, at its own cost, the repaired or replacement
     item to Axtel's address specified in the PO, together with the appropriate
     documentation required for such shipment and return shipment thereof.
     Airspan shall

                                     Page 2
<PAGE>

Annex G - Warranty Services
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

     be responsible for loss of, or damage to, Product while it is (y) in
     Airspan's possession, or (z) in transit back to Axtel. Title to each
     replacement item will pass to Axtel on payment in full for the replacement
     item or, if no payment is due, on receipt by Axtel.

1.5  No warranty is provided for: (i) supply items normally consumed during
     Product operation; (ii) failures caused by non-Airspan products; (iii)
     failures caused by a Product's inability to operate in conjunction with
     other Axtel hardware or software different from the Third Party Vendor
     Items provided by Airspan under this Agreement; or (iv) performance
     failures resulting from improper installation and maintenance or Axtel's
     use of unauthorized parts or components.

     The warranty will be voided by misuse, accident, damage, alteration or
     modification, failure to maintain proper physical or operating environment,
     use of unauthorized parts or components or improper Axtel maintenance.
     Software is not warranted to operate uninterrupted or error free. The
     performance by Axtel, directly or indirectly, of the installation,
     engineering, commissioning, network design, support and maintenance of FWA
     Products by skilled personnel in accordance with the Airspan Procedures
     shall not invalidate the warranty provided hereunder.

1.6  Airspan covenants that it has good title to all hardware (including Third
     Party Hardware) to be delivered hereunder and that Airspan shall convey to
     Axtel good title to the hardware free from any and all liens, encumbrances
     or third party rights whatsoever in accordance with the Agreement. In
     addition, Airspan covenants that it is entitled to grant Axtel the right to
     use the Software free from any and all liens or encumbrances whatsoever in
     accordance with the Agreement.

1.7  The warranty and/or the extended warranty shall not be affected if Axtel
     connects to the Products, software or hardware from other suppliers if such
     suppliers' hardware or software complies with international
     telecommunications standards and Axtel is current with Products software
     loads, provided that such current Product software load is required for the
     correct interoperability between such hardware and software.

1.8  Airspan shall provide the hardware repair and shipping instructions for all
     the parts of the Products to be supplied to Axtel by Airspan under and in
     accordance with this Agreement. The Technical Assistance (7x24) and Repair
     & Return Services shall be provided during the Warranty Period as detailed
     in Part Two of this Annex "G" and is included in the prices of the Products
     set forth in Annex "F".

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                PURCHASE AND LICENSE AGREEMENT FOR FWA EQUIPMENT

                                     ANNEX G

                          PART TWO - WARRANTY SERVICES

1.0  SERVICES SUMMARY

     For Products covered by the warranty given under Part 1 of this Annex G
     during the Warranty Period, Airspan will:

     o    Provide Remote Technical Assistance (as defined below) to assist Axtel
          in the diagnosis of hardware failures of any Product supplied by
          Airspan under this Agreement.

     o    Repair or replace a defective Field Replaceable Unit ("FRU"). If an
          FRU becomes defective during the Warranty Period, and provided it has
          been returned to Airspan in accordance with section 1.4 of Part One
          above, Airspan will repair and deliver the FRU to Axtel within 60 days
          following receipt by Airspan of the defective FRU.

               Note: Axtel will maintain its own stock of spares at levels
               sufficient to cover requirements within timeframes consistent
               with Axtel's quality of service objectives.

          Airspan will register and manage requests for Remote Technical
          Assistance and for FRU replacement during normal business days and
          hours in the location where the service is being performed.

          The following specific warranty services ("Services") will be provided
          by Airspan under Part 2:

1.1  Technical Assistance Service during Warranty Period

1.1.1 During the Warranty Period, Airspan will provide Remote Technical
     Assistance (as defined below) to assist Axtel in the diagnosis of hardware
     failures. Specifically, Airspan will provide the following deliverables in
     this regard:

     o    Airspan technicians and engineers will provide support primarily by
          remote means ("Remote Technical Assistance"). In a collaborative
          effort with Axtel's technical staff, these personnel will attempt to
          diagnose and resolve issues related to the hardware supplied by
          Airspan as explained in this service description.

     o    Where telephone support, remote diagnosis, and all other means of
          restoring product operation have failed, Airspan will, upon Axtel's
          request, and if Airspan determines that on-site support is necessary
          and appropriate, at Airspan's expense, dispatch a trained and
          qualified technical expert to Axtel's premises to facilitate further
          diagnosis.

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     o    Should Airspan determination that on-site support is not necessary,
          Axtel will nevertheless have the right to require on site support from
          Airspan, provided that such on site support required by Axtel shall be
          at Axtel's cost unless it is agreed in writing that it was necessary
          for such support to be provided on site.

1.1.2 Axtel Responsibilities for receipt of Remote Technical Assistance

     To receive Remote Technical Assistance, Axtel will be required to:

     o    Confirm that the products have been installed and commissioned and are
          used and maintained by knowledgeable and skilled people in accordance
          with Airspan Procedures.

     o    Replace hardware components during diagnosis or as remedial actions.

     o    Generate performance/availability reports and associated trend
          analysis.

     o    Gather data in a timely manner in support of Airspan' diagnostic
          process when reasonably within the technical competency of Axtel.

     o    Identify issues requiring hardware replacement

     o    Perform software upgrades and/or patch applications

     o    Provide connectivity in a timely manner to the Product(s) for Airspan
          to establish a data link for use by Airspan technical support group in
          order to conduct remote diagnosis and maintenance. Axtel and Airspan
          technical personnel will agree on the appropriate type of data link
          based on network equipment and configuration as well as the
          appropriate security measures to prevent unauthorized access. Axtel
          will be solely responsible for security of the network. Airspan will
          not connect to Axtel's network without prior authorization and such
          connection will be solely to provide technical support.

     o    Excuse Airspan from fault resolution for a period equal to such
          failure or delay, should Axtel fail or cause delay in providing
          connectivity

     o    Designate and make available competent personnel to aid in problem
          diagnosis and provide electronic access to the affected Product(s) to
          aid in problem investigation and resolution for all incidents. Axtel
          personnel shall be available to work with Airspan's technical expert
          during all the process for Remote Technical Assistance.

     o    Implement its internal escalation process in order to inform all the
          necessary contacts at Airspan.

     o    Maintain such support agreement(s) with third-party supplier(s) for
          such product(s) other than Products, as Axtel sees fit.

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     o    Exhaust internal troubleshooting processes with first-level its
          Operations, Administration, and Maintenance ("OA&M") functions.
          First-level support includes, but is not limited to:

          -    Performing day-to-day maintenance and network operations

          -    Monitoring network and system alarms

          -    Performing diagnosis in accordance with instructions provided by
               Airspan and carrying out initial remedial actions, including
               remote diagnosis

          -    Operating and controlling Axtel's internal help desk for logging
               and tracking fault inquiries, prioritizing events, and
               escalating, as required, to the Airspan technical support group

          -    Providing local time templates and historical actions performed
               on each event as reference information to the Airspan technical
               support group .

1.1.3 Technical Assistance Services Assumptions

     For Remote Technical Assistance the following assumptions will apply:

     o    2nd & 3rd Level Technical Support Services will be provided by Airspan
          at its cost and expense during the Warranty Period to the Hardware
          elements covered by the warranty.

     o    In the event that Axtel fails to comply with its responsibilities
          described in section 1.1.2 of Part Two, Airspan will advise Axtel in
          writing of its non-compliance. Airspan and Axtel may then agree upon
          services to be provided at the then-current time-and-materials basis
          published by Airspan plus any travel and living expenses incurred

     o    Services provided by Airspan under this Annex G are warranted in
          accordance with Section 6.3 of this Agreement. o Airspan, or a
          skilled, qualified third-party authorized by Airspan, will furnish
          these Services.

1.1.4 Exclusions

     The following exclusions will govern the provision of Remote Technical
     Assistance:

     o    Software provided by Airspan under this Agreement has no warranty.

     o    Providing advice on how to detect and resolve network-related problems

     o    Diagnosing issues related to Airspan Products interfacing with
          non-Airspan products

     o    Analyzing trace / log / dump / Operational Measurement ("OM")
          information

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     o    Emergency Recovery

     o    Airspan is not responsible for supporting non-Airspan supplied
          third-party product(s). Axtel will be responsible for maintaining
          support agreements with the OEM/third-party supplier for such
          product(s).

     o    No warranty is provided for Product failures caused by events
          specified in Part One - sections 15 and 1.6.

     o    Airspan support obligations are expressly conditional upon the
          Products not being (i) subject to unusual mechanical stress or unusual
          electrical or environmental conditions; (ii) subject to misuse,
          accident or disaster including without limitation, fire, flood, water,
          wind, lightning or other acts of God; or (iii) altered or modified
          unless performed or authorized by Airspan

     o    Products which have not been installed and commissioned by
          appropriately skilled and trained personnel using Airspan Procedures
          are excluded from the warranty.

     o    Remote Technical Assistance will not be provided during installation
          and/or commissioning processes.

1.2  Return and Replace Service

     Airspan Networks will register and manage requests for Return and Replace
     service during Airspan' normal business days and hours in the location
     where the service is being performed.

     Upon receiving Axtel's request, Airspan will allocate a part request number
     (also known as a Return Material Authorization number) to each FRU to be
     replaced and will notify Axtel in writing of the relevant part request
     number.

     Following allocation of the part request number(s) Airspan will repair or
     replace the unit and will deliver the repaired unit or an equivalent to
     Axtel within 60 days of receipt by Airspan at the place where the repair or
     replacement is carried out (the "R&R Time Limit").

     On-site repair and on-site replacement services by Airspan are not included
     with the Return and Replace Service.

1.2.1 Like for Like Replacement

     Airspan, at its own cost and expense, shall provide within 60 days after
     the Effective Date of this Agreement and maintain in Axtel warehouses to be
     notified to Airspan in writing the following amount of Products (the "Stock
     Products"):

<TABLE>
<CAPTION>

              -------- ----------------- ------------------------------------------------------ --------------
                Ref      Part Number                          Description                        Quantities
              -------- ----------------- ------------------------------------------------------ --------------
<S>              <C>       <C>           <C>                                                         <C>
                 1         NTEG72AD      TBM                                                         16
              -------- ----------------- ------------------------------------------------------ --------------
                 2         NTEG77EC      TMU                                                         16
              -------- ----------------- ------------------------------------------------------ --------------
                 3         NTED4575      TPM                                                          8
              -------- ----------------- ------------------------------------------------------ --------------
                 4         NTEG63AA      TTM                                                          8
              -------- ----------------- ------------------------------------------------------ --------------

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                 5         NTEG73AA      NMM                                                          4
              -------- ----------------- ------------------------------------------------------ --------------
                 6         NTEG74BA      OVPM                                                        12
              -------- ----------------- ------------------------------------------------------ --------------
                 7         NTEG71HA      TPM-PD                                                      12
              -------- ----------------- ------------------------------------------------------ --------------

</TABLE>

     These Stock Products shall be kept by Axtel in its own facilities in Mexico
     and Axtel shall manage such Stock Products at its sole discretion to create
     a replacement process for damaged parts as a "Like for Like" replacement
     process.

     The Parties hereby agree that Airspan shall be obligated to increase the
     Stock Products by one piece of the respective part number, if Airspan is
     more than five (5) days late under section 1.2 of Part Two above, in the
     repair and return of such part (this shall be accounted by pieces).

1.2.2 Axtel Responsibilities for Return and Replace Services

     Axtel will be required to:

     o    Pay the expense of shipping a defective FRU to Airspan's warehouse or
          logistic center defined for this purposes.

     o    Use the specifically-assigned part request number(s) provided by
          Airspan and include completed Airspan Fault Report Forms when
          returning any FRU

     o    Adhere to Airspan' packing instructions (including anti-static
          precautions) when returning the defective unit. The packing
          instructions will be included with the return instructions
          accompanying the replacement FRU

     o    Put the replacement FRU into service once it has been returned by
          Airspan to Axtel.

1.2.3 Assumptions for Repair Services

     The following assumptions will govern the provision of repair Services for
     Products covered by the warranty in the Warranty Period:

     o    Airspan will incur the expense of shipping the repaired unit or the
          replacement unit to Axtel using a method and carrier selected by
          Airspan. Airspan is responsible for loss of, or damage to, an FRU
          while it is in Airspan' possession or in transit to Axtel, as well as
          to pay all applicable duties, taxes, and other charges associated with
          the importation of the repaired or replacement FRU into the country of
          destination.

     o    Unless required for operational reasons and agreed upon with Airspan,
          the replacement FRU will be at the then-current hardware and firmware
          release levels as they are made Generally Available (GA) by Airspan.
          Upon a specific request of Axtel for repair of a quantity of RTUs with
          a specific software release version, the parties will work together to
          define a mutually agreeable process to satisfy such specific request,
          provided that such a process does not cause Airspan to incur any out
          of pocket expenses or material additional cost.

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     o    Warranty on FRU repaired by Airspan shall be limited to one hundred
          and eighty (180) days from delivery of the repaired FRU or to the end
          of the original warranty period, whichever is longer.

     o    The defective FRU returned to Airspan becomes the property of Airspan
          and, subject to Airspan' receipt of the defective FRU, its replacement
          becomes Axtel's property.

     o    Airspan reserves the right to reject the return of any FRU that does
          not clearly display the specific part request Return Material
          Authorization ("RMA") number or does not include the associated
          completed Airspan fault report forms.

     o    Airspan will from time to time assess Products offered and supported.
          The assessment will be based on technology, market development,
          product deployment, and support requirements and may identify certain
          Products that will be discontinued. Airspan reserves the right to
          terminate any service purchased by Axtel for products that have been
          discontinued. Subject to the terms and conditions of the FWA PLA,
          continued support for any discontinued products beyond the effective
          date of discontinuance may be provided in accordance with the terms
          and conditions as stated in the FWA PLA.

     o    The service will be furnished by Airspan or a party authorized by
          Airspan.

     o    As part of the repair service, Airspan will monitor all faulty product
          returns for No Fault Found ("NFF") from Axtel. All repair cases
          resulting in "no fault found" will not be charged to Axtel. In the
          event that such Product presents again in the field within 180 days of
          return date the same failures as noticed by Axtel, Airspan shall
          repair or replace, within 60 days of receipt of the FRU, such Product
          at its cost and expense.

     o    If, in the judgment of Airspan, the returned FRU has been damaged by
          misuse, accident, modification or failure to maintain the proper
          physical or operating environment or improper maintenance by Axtel,
          then Airspan will return the defective un-repaired FRU to Axtel at
          Axtel's expense.

     o    It is critical that Axtel regularly ship all defective Products to
          Airspan, as and when defects are detected, to avoid the accumulation
          of defective Products that will impact Airspan's ability to meet the
          target turnaround times.

     o    In the case of Product replaced at Airspan discretion, and which would
          be returned with a different Serial Number to Axtel, the proper
          documentation shall be provided by Airspan for Axtel's asset controls
          to evidence which serial number is replaced.

1.2.4 Exclusions to Repair Services

     The following exclusions will govern the delivery of repair Services:

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     o    Airspan support obligations are expressly conditional upon the
          products not being (i) subject to unusual mechanical stress or unusual
          electrical or environmental conditions; (ii) subject to misuse,
          accident or disaster including without limitation, fire, flood, water,
          wind, lightning or other acts of God; or (iii) altered or modified
          unless performed or authorized by Airspan.

     o    Repair Services are not offered on Airspan holidays observed in the
          region where the service is being performed. o Additionally, repair
          Services do not include Emergency Repair Support (also known as
          Emergency Part Dispatch).

     o    Root-cause analysis, the provision of fault reports,
          lead-time/performance metrics, or hardware upgrades

     o    Those exclusions identified in Section 1.5 and 1.6 of Part One of this
          Annex "G". Software is not warranted to operate uninterrupted or error
          free.

2.0  GENERAL

2.1  Holidays Observed by Airspan

     Please refer to your local Airspan representative to get information of
     Local National Holidays observed at Axtel's location.

2.2  Call Center Access for Technical Support

     The Airspan Call Center will function as a single point of contact for the
     receipt of all support calls and inquiries. The remote support effort will
     begin with a telephone call and will continue with the appropriate actions
     to be taken according to Airspan Case Severity Classifications.

     In accordance with Table 2-R below, the Call Center will register and
     manage requests for Remote Technical Assistance during normal business days
     (M-F) and hours (9:00-18:00 hrs), excluding holidays for Business Critical,
     Major and Minor Severity Problems and for E1 and E2 Severity Problems the
     Call Center will be available 24 hours a day, 365 days a year. General
     provisions for accessing Technical Assistance services include:

     o    Airspan may, where applicable, also provide a customer with the
          ability to open, view, and modify cases directly within the Airspan
          case-tracking system via www.Airspan.com. The customer will bear
          telecommunication facility charges and/or long distance toll charges
          associated with access to www.Airspan.com

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     o    Where toll-free access is not available, Axtel will bear
          telecommunication facility charges and/or long distance toll charges
          for access to the Call Center

     o    All cases are logged into the Airspan case-tracking system. The case
          is time-stamped and a case reference number allocated. Furthermore,
          Airspan will request that Axtel agree to a case priority level

     o    E1 and E2 priority cases are to be reported by telephone only

     o    Axtel to escalate a case to higher levels of management within
          Airspan, in accordance with the escalation table in section 2.2.5.

2.2.1 Airspan Technical Support Services Call Process

     When calling Airspan for Technical Assistance or Emergency Recovery,
     Axtel's representative will be asked to provide the following information:

     1.   Company name

     2.   Caller name and phone number

     3.   Personal Identification Number (PIN) or a unique Axtel Purchase Order
          number or credit card number, if a PIN has not been issued.

     4.   Site Location/Site ID

     5.   Product on which the problem is being reported

     6.   Problem description and severity

     A Call Center agent will generate a Case Reference Number (CRN), which will
     be provided to Axtel for tracking the case. An Airspan technician will then
     team with Axtel's representative to resolve the reported issue.

2.2.2 Call Center Phone Numbers

     Axtel sites in Latin America will access the Airspan technical support
     organizations by calling:

     Tel: + (1) 561 893-8679

     email: from the Airspan Web Site
     :://www.airspan.com/Ultra/ContactForm/supportform.asp

2.2.3 Technical Support Response Times

     Once Axtel has opened a CRN at the Airspan' Call Center and depending on
     the Severity Classification, an Airspan Technical Support (NTS) Engineer
     will contact Axtel's representative as per the terms set forth in Table 2-R
     below.

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2.2.4 Technical Support Case Priority

     The definitions in this Section 2.2.4 are generic and shall apply to the
     limited extent that this Annex G covers Hardware warranty only. Problem
     reports will be classified as set forth in the tables below.

<TABLE>
<CAPTION>

------------------- -------------------------- --------------------------------------------------------------
 TL9000 Severity     Airspan Case Priority      Examples
 Classification      & Definition
------------------- -------------------------- --------------------------------------------------------------
<S>                   <C>                      <C>
 Critical            E1                        >>    Total or partial network element outage
                     Problems that severely    >>    A reduction in capacity or traffic handling
                     affect service,                 capability such that expected loads cannot be handled
                     capacity/traffic,         >>    Failure resulting in dynamic routing, switching
                     billing and                     capability or transport loss
                     maintenance               >>    Any loss of safety or emergency capability (e.g.,
                     capabilities and                emergency calls such as 911 in North America)
                     require immediate         >>    Loss of the system's ability to perform automatic
                     corrective action,              system reconfiguration
                     regardless of time of     >>    Inability to restart the system
                     day or day of the         >>    Loss of billing/accounting capability
                     week.                     >>    Corruption of billing or system databases that
                                                     requires service affecting corrective actions
                                               >>    Other problems that severely affect service,
                                                     capacity/traffic, billing, and maintenance
                                                     capabilities or are jointly viewed by Airspan and
                                                     Axtel as critical
------------------- -------------------------- --------------------------------------------------------------

</TABLE>

<TABLE>
<CAPTION>

--------------------- --------------------- -----------------------------------------------------------------
 TL9000 Severity       Airspan Case          Examples
 Classification        Priority &
                       Definition
--------------------- --------------------- -----------------------------------------------------------------
<S>                     <C>                 <C>
 Major                 E2                   >>    Loss of redundancy of critical functions
                       Problems that        >>    Loss of protection switching capability
                       result in            >>    Short outages equivalent to system or subsystem
                       potential service          outages not seriously impacting service with accumulated
                       degradation                duration of greater than two minutes in any 24-hour
                       and/or total               period, or that continue to repeat during longer periods
                       outage. Serious      >>    A reduction in provisioned capacity of 5% and for a
                       situation not              cumulative duration of more than 10 minutes per 24 hours
                       involving service    >>    Repeated degradation of DS1/E1 or higher rate spans or
                       degradation in a           connections
                       live environment,    >>    Loss of system's ability to perform automatic system
                       but leading to a           reconfiguration
                       total or partial     >>    Loss of access to maintenance or recovery operations
                       loss of              >>    Any loss of functional visibility and/or diagnostic
                       redundancy.                capability
                                            >>    Loss of system's ability to provide any required
                                                  system critical/major alarms
                                            >>    Total loss of access to provisioning
--------------------- --------------------- -----------------------------------------------------------------

</TABLE>

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<TABLE>
<CAPTION>

------------------- ------------------------------------- ---------------------------------------------------
 TL9000 Severity     Airspan Case Priority & Definition    Examples
 Classification
------------------- ------------------------------------- ---------------------------------------------------
<S>                  <C>                                  <C>
 Major               Business Critical                    >>    The customer has been given a
                     Problems that result in a major            work-around but the situation still
                     degradation of system or service           requires constant attention due to the
                     performance that impacts service           temporary nature of the work-around
                     quality or significantly impairs     >>    Software application/migration issues
                     network operator control or                that gate the introduction of new services
                     operational effectiveness.                 or functionality
                     Overall network is degraded          >>    Billing error rates that exceed
                     resulting in severe limitations            specifications
                     to operations or network             >>    Corruption of system or billing databases
                     management software product has
                     major feature that is not working
                     properly with only difficult
                     workaround.
------------------- ------------------------------------- ---------------------------------------------------

</TABLE>

<TABLE>
<CAPTION>

-------------------- ---------------------- -----------------------------------------------------------------
 TL9000 Severity      Airspan Case           Examples
 Classification       Priority &
                      Definition
-------------------- ---------------------- -----------------------------------------------------------------
<S>                   <C>                   <C>
 Major                Major                 >>    Degradation of any capacity/traffic measurement
                      Problems that               function; degradation of functional visibility and/or
                      result in                   diagnostic capability
                      conditions that       >>    Degradation of access for maintenance or recovery
                      seriously affect            operations
                      system operation,     >>    Degradation of the system's ability to provide any
                      maintenance and             required system critical/major alarms
                      administration,       >>    Loss of access for routine administrative activity
                      etc. and require      >>    Any system failure without direct immediate impact
                      immediate             >>    Intermittent degradation of services; partial loss of
                      attention.  The             access to provisioning
                      urgency is less       >>    Software application/migration issues that do not
                      than in a Business          impact service
                      Critical situation    >>    Reduction in any capacity/traffic measurement function
                      because of a          >>    Any loss of functional visibility and/or diagnostic
                      lesser immediate            capability
                      or impending          >>    Any significant increase in product-related customer
                      effect on system            trouble reports
                      performance,          >>    Follow-up to E1 customer problems
                      customers, and        >>    Other problems that disrupt or prevent routine system
                      Axtel's operation           activities, or problems that are jointly viewed as Major
                      and revenue.                events by Airspan and Axtel
-------------------- ---------------------- -----------------------------------------------------------------

</TABLE>

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<TABLE>
<CAPTION>

------------------- ----------------------- -----------------------------------------------------------------
 TL9000 Severity     Airspan Case            Examples
 Classification      Priority &
                     Definition
------------------- ----------------------- -----------------------------------------------------------------
<S>                  <C>                    <C>
 Minor               Minor                  >>    Service analysis, recorded announcements, operational
                     Problems do not              measurements, maintenance program, or network management
                     significantly                problems; or system-related documentation inaccuracies,
                     impair the                   that do not affect call processing
                     functioning of the     >>    Test equipment failures for which a backup or manual
                     system and do not            alternative can be employed
                     significantly          >>    Circuit pack testing problems
                     affect service to
                     customers.  These
                     problems are
                     tolerable during
                     system use.
------------------- ----------------------- -----------------------------------------------------------------

</TABLE>

2.2.5 Case Resolution Objectives and Escalation Procedures

     The definitions in Table 2-R below are generic and shall apply to the
     limited extent that this Annex G covers Hardware warranty only.

     Airspan Technical Support case resolution targets are based in Airspan best
     efforts and set according to the following TL9000 standard:

                                  "Table 2 - R"

<TABLE>
<CAPTION>

   --------------- -------------------------------- --------------------------- ------------- ----------------
      TL9000                  Actions                                                           Resolution
                                                         Response Times           Target
     Severity                                                                     Service
   Classification                                                               restoration      Targets
                                                                                   time       Based on RQMS*
   --------------- -------------------------------- --------------------------- ------------- ----------------
                                                     Business        Non -
                                                       Hours       Business
                                                                     Hours
   --------------- -------------------------------- ------------- ------------- ------------- ----------------
<S>                <C>                                <C>           <C>            <C>            <C>
   E1 (*1)         Worked  continuously  (7 x 24)     15 min        30 min         7 Hr           24 hr
                   until       resolution      or
                   workaround is provided
   --------------- -------------------------------- ------------- ------------- ------------- ----------------
   E2 (*1)         Worked  continuously  (7 x 24)     15 min        30 min         8 Hr          10 Days
                   until       resolution      or
                   workaround is provided
   --------------- -------------------------------- ------------- ------------- ------------- ----------------
   Business        Worked during normal  business                    Next          24 Hr         30 Days
   Critical and    days and business hours.            2 hrs       Business
   Major (*2)                                                         Day
   --------------- -------------------------------- ------------- ------------- ------------- ----------------
   Minor (*2)      Worked during normal  business      Next          Next         30 Days        180 days
                   days and business hours.          Business      Business
                                                        Day           Day
   --------------- -------------------------------- ------------- ------------- ------------- ----------------

</TABLE>

(*1) This Service is provided 7 x 24

(*2) This Service is provided in Normal Business Hours

Note: The times set forth in Table 2 - R above, are subject to Airspan and Axtel
working together in conjunction on a reasonable efforts basis to find a
workaround for services restoration and resolution within the target times.
These times do not represent an obligation or performance indicator.

* RQMS - Reliability and Quality Measurements for Telecommunications Systems.

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                         "Airspan Escalation Procedure"

                     ---------------------------------------
                                   Axtel's NOC
                     ---------------------------------------

                     ---------------------------------------
                               Call Center Airspan
                     ---------------------------------------

                     ---------------------------------------
                       Airspan Technical Support Engineer
                     ---------------------------------------

                     ---------------------------------------
                       Airspan Technical Support Manager.
                     ---------------------------------------

                     ---------------------------------------
                       Airspan Technical Support Sr. Mgr.
                     ---------------------------------------

------------------------------                     -----------------------------
 Airspan Technical Support                           Airspan Axtel Operation
          Director                                           Leader
------------------------------                     -----------------------------

     At Closing Date, Airspan will provide Axtel with the contact information of
     the persons involved in this Escalation Procedures, as well from time to
     time, the changes to such contact information will be provided to Axtel.

2.2.6 Case Progress Status

Airspan Technical Support use the following status to differentiate the case
conditions during the evolution of the case investigation. A set of status, its
related meaning and its relationship with the case age, are defined in the table
below:

<TABLE>
<CAPTION>

    --------------------- ----------------------------------------------------------------- ----------------
    Status                Description                                                       Airspan Clock
    --------------------- ----------------------------------------------------------------- ----------------
<S>                       <C>                                                               <C>
    Newly Opened          This status is the default.  It signifies that no work has been   Start
                          done on the case.
    --------------------- ----------------------------------------------------------------- ----------------
    WIP Level 1           This status is used when a NTS Engineer is actively  working on   Not Stopped
                          the Case.
    --------------------- ----------------------------------------------------------------- ----------------
                          This status is used when a Second Level Support Engineer is
    WIP Level 2           actively working a case                                           Not Stopped
                          * Second Level Support: Software Support, Product Support.
    --------------------- ----------------------------------------------------------------- ----------------
    Escalated             To Design This status is used when a Design Engineer
                          is actively working Not Stopped on the case
    --------------------- ----------------------------------------------------------------- ----------------

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--------------------------------------------------------------------------------

    --------------------- ----------------------------------------------------------------- ----------------
    Status                Description                                                       Airspan Clock
    --------------------- ----------------------------------------------------------------- ----------------
    Answer                From Design Design Engineer has concluded its
                          investigation and has Not Stopped replied back to the
                          NTS Engineer
    --------------------- ----------------------------------------------------------------- ----------------
                          During the course of conducting their research, the
                          NTS Engineer may need additional information or
                          activity from the
    With A Axtel          Axtel.  The  "With a Axtel"  status  is  assigned  when the NTS   Stopped
                          Engineer  is waiting on a Axtel  response  in order to continue
                          investigation
    --------------------- ----------------------------------------------------------------- ----------------

                          If a temporary solution is provided that eliminates
                          Axtels pain until a permanent solution can be
                          delivered, RQMS requirements allow the case to be set
                          to an "IS" status during this window of time if
                          approved by the Axtel. In calculating case age, this
    Interim               Solution interval will be discounted if the permanent
                          fix was delivered Stopped on the negotiated commitment
                          date. If the permanent fix does not resolve the
                          reported problem, case status shall be changed to Work
                          in Progress (Level 1 or 2). If the case is returned to
                          a Work in Progress (Level 1 or 2) status after using
                          the IS, the IS time period will be added to the RQMS
                          age of the case.
    --------------------- ----------------------------------------------------------------- ----------------
                          Axtel agrees to live with the problem condition and
                          that the fix will be delivered as part of a future
                          Airspan product release (software release, maintenance
                          release, documentation release or hardware revision.
                          Requirements to use this status include Axtel consent;
                          fix identification, and delivery
    Future                Deliverable commitment. This status code does not add
                          time to the RQMS age Stopped of the case unless the
                          solution fails and the case is moved back to Work in
                          Progress (Level 1 or 2) status. If the case is
                          returned to a Work in Progress (Level 1 or 2) status
                          after using the FD, the FD time period will be added
                          to the RQMS age of the case.
    --------------------- ----------------------------------------------------------------- ----------------
                          Solution Delivered or available for testing and
                          verification. If the delivered solution does not
                          resolve the reported problem, the status will be
                          changed to Work in Progress (Level
    Solution              Delivered 1 or 2). If the case is returned to a Work
                          in Progress (Level Stopped 1 or 2) status after using
                          the SD status, the SD time period will be added to the
                          RQMS age of the case.
    --------------------- ----------------------------------------------------------------- ----------------
    Pending OEM Vendor    The case has been handed over to an OEM Vendor for resolution     Not Stopped
    --------------------- ----------------------------------------------------------------- ----------------

</TABLE>

2.2.7 Case Resolutions Classifications

     Airspan Technical Support case resolutions, which shall be mutually agreed
     for each case:

     o    Cannot Reproduce: After 60 days and a reasonable effort, a problem has
          not been observed in the Network, is not reproducible or sufficient
          information has not been provided to adequately troubleshoot the
          problem and isolate the root cause

     o    Axtel Process: Human errors are present or Axtel has failed to follow
          procedures recommended and documented by Airspan

     o    Design Intent: The functionality required by customer does not align
          with the design specifications of the product set forth in Agreement,
          in which case Airspan shall make clear to Axtel which is such design
          specification

                                    Page 16
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Annex G - Warranty Services
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--------------------------------------------------------------------------------

          (i.e., the functionality is unsupported), and the issue can only be
          resolved through new development efforts subject to a separate product
          development agreement and charges.

     o    External Cause: Issue caused by non-Airspan products

     o    Hardware Deficiency: A problem is isolated to defective hardware
          materials or workmanship or substantial nonconformance to
          specifications published by Airspan

     o    Hardware Failure: A problem is caused by a hardware component failure
          that falls within Mean Time Between Failure (MTBF) limitations

     o    Airspan Literature: Required Airspan technical document does not exist
          or the contents of an existing document are in error [for example, an
          incomplete Airspan Technical Publication (NTP)]

     o    Airspan Process: A problem occurs as a result of a Airspan process
          deficiency

     o    Opened in Error: The case should not have been opened

     o    Scheduled Event: An outage occurs resulting from planned maintenance,
          installation, or manual initialization, including such activities as
          parameter loads, software/firmware changes, and other OA&M activities

     o    Software Deficiency: A problem is isolated to a software design
          deficiency.

2.3  Axtel Order Process for FWA Repair Services

     This process supports the delivery of Airspan FWA Repair Services for
     Axtel. When requesting a Hardware warranty repair service, Axtel should
     have the following required information ready when placing a repair order
     with Airspan:

     1.   Axtel or distributor name

     2.   Axtel ID (Project #, Site ID)

     3.   Requestor name, phone and fax number, and e-mail address

     4.   Axtel ship to address

     5.   Part number (PEC or CPC or manufacturer's part number)

     6.   Quantity (quantity of one per serial number)

     7.   Serial number of the defective part(s) being returned (if applicable)

     8.   Warranty status

     9.   Confirmation of the availability of a fully completed Airspan fault
          report form for said product.

     10.  Any additional information about product (system type or software
          release)

     11.  Any special shipping instructions

     Upon receiving Axtel's request and after any diagnostics assistance,
     Airspan will allocate a part request number to each FRU to be repaired and
     notify Axtel of the relevant part request number.

                                    Page 17
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Annex G - Warranty Services
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

     This part request number, also known as the Return Material Authorization
     (RMA) number, is critical for tracking individual orders and must be
     referenced on failure tags, shipping/packing lists, returned defectives,
     and any correspondence or inquiries concerning the order.

     The customer's representative can call in, fax or e-mail a Repair Service
     order directly to Airspan the UK using the following contact means:

     Office hours (Monday through Friday from 9:00 a.m. to 6:00 p.m. (Local
     time)

     + 44-1895-467397

     Faxes
     All faxed orders will be processed and assigned an RMA# by the close of the
     next business day. Faxed emergency orders must also be called in to verify
     receipt of faxes. E-mail To obtain a parts request form by e-mail, please
     send an e-mail message to any of the above addresses and note "repair order
     form" in the subject/title field. A form will be sent automatically. Place
     the PO number in the subject/title field when e-mailing a completed parts
     request form back to Airspan. For order confirmation, Airspan will respond
     with an RMA number to all e-mail orders by the next business day.

2.4.1 Method of Payment for Excluded Services

     If Axtel requests a service that is neither part of the scope of this
     Warranty Service nor within the control or responsibility of Airspan under
     the Technical Assistance Support Services Agreement, then Airspan will
     charge additional fees to perform such services, in the event that Airspan
     agrees to perform them. Airspan reserves the right not to perform any
     Service not covered by this Warranty.

2.4.2 Package Labeling Instructions and Addresses for Returns

     Circuit packs should be packed in anti-static containers designed
     specifically for the circuit packs in order to avoid damage during
     shipment. Other parts should be individually wrapped in either anti-static
     packaging or packaging specifically designed for that product to avoid
     damage during shipment. Airspan will inform customers of any improper
     packaging, which will void the warranty. All materials should be returned
     pre-paid and sent to the appropriate Airspan repair facility. The customer
     should use discretion in selecting shipping methods. Airspan recommends
     that customers insure all packages to cover possible loss or damage during
     shipping, regardless of warranty status.

     A completed Airspan fault report must be filled out and attached to each
     returned item to assist in failure assessment and problem tracking. Fault
     reports

                                    Page 18
<PAGE>

Annex G - Warranty Services
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

     are sent with each replacement shipment. Axtel can obtain additional
     supplies by contacting the Airspan Customer Support Center.

     Airspan will inform customers of any discrepancy in return shipments. Any
     discrepancy, whether it is quantity (more or less), product returned not
     matching what was ordered, inability to determine complete order
     information, or non-suitable packaging, would be noted and addressed.

     Defective Return Packing Slips

     Defective return packing slips should be used to return all defective parts
     to Airspan. Airspan will provide defective return packing slips for use to
     return shipments. A copy of the defective return packing slip should be
     placed in all the cartons and attached outside. This duplication will aid
     in processes and proper identification of returned material. The RMA number
     and the PO number should be clearly marked on the outside of each box. If a
     customer supplies a packing slip, the following information must be
     included on the shipping/packing list for proper handling:

     Item (Information Required)

     1.   From (Company name, return address, and telephone number)

     2.   Ship Date (Date parts are shipped from Axtel)

     3.   Ship via (Carrier or Enterprise name)

     4.   Waybill number (Carrier or Enterprise tracking number

     5.   Number of Cartons (Number of cartons being sent on shipment)

     6.   Axtel's PO# (Provided, if applicable)

     7.   Repair order number (RMA# issued by Call Center when order is placed)

     8.   Site ID or Project number

     9.   Item Number

     10.  Quantity ordered

     11.  Quantity returned

     12.  Airspan Part number

     13.  Description of item

     14.  Serial number (The serial number for each item in the shipment)

     15.  Shipment requested by (Signature of Axtel's representative)

     Repair Facility Addresses

     For RSS's the equipment should be sent to Solectron Guadalajara and for
     base stations to Solectron Dumfermline

     Attn: Airspan Hardware Support Representative

     This address may be modified from time to time by Airspan.

                                    Page 19
<PAGE>

Annex G - Warranty Services
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

                                     ANNEX H

                              ACCEPTANCE PROCEDURE
                               NEW FWA RSS F6 UNIT

                                     Page 1
<PAGE>

Annex G - Warranty Services
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

                PURCHASE AND LICENSE AGREEMENT FOR FWA EQUIPMENT

                                     ANNEX H
                   ACCEPTANCE PROCEDURE - NEW FWA RSS F6 UNIT

--------------------------------------------------------------------------------

This is the Annex "H" of the Purchase and License Agreement for FWA Equipment,
dated as of December __, 2004 (the "Agreement"), is entered into by and among
Airspan Communications Limited ("Airspan"), and Axtel, S.A. de C.V. ("Axtel").

The Parties hereby agree to determine and establish on or before January 31st,
2005, the acceptance procedure to be used in the First Market Application of the
New FWA RSS F6 Unit (the "Acceptance Procedure"). The acceptance procedure shall
demonstrate, verify and prove that the New FWA RSS F6 Unit shall have at least
the same form, function and fit of both of the current RSS Equipment (jointly F2
and F5 RSS equipment), in accordance with the technical specifications set forth
in Annex "D" of the Agreement.

Airspan will provide a number of fifteen (15) New FWA RSS F6 Unit to Axtel by
January 30th 2005 in order for Axtel to perform and have completed no later than
March 15th 2005 a first market application of the New FWA RSS F6 Unit before the
New Product Commercial Launch (the "First Market Application").

The New FWA RSS F6 Unit shall pass successfully the First Market Application
made by Axtel pursuant the Acceptance Procedure.

If Axtel considers it necessary, Axtel will have the right to request Airspan to
assist Axtel in a verification office of the New FWA RSS F6 Unit. Airspan will
provide a quote for this service under this Agreement at reasonable costs and
prices.

                                     Page 2
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex J
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

                                     Annex J

                             PLA FWA Delivery Times

                                     Page 1
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex J
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

                                     ANNEX J

                                 DELIVERY TIMES

1.-  Delivery Time of any FWA Product

     (i)  Any FWA Product

          Subject to the provisions of section 5.19 of the Agreement, the firm
          Delivery of any FWA Product (RSS, complete or segregated RBS Equipment
          or Spare Parts) shall be [ * ] weeks after Order Acceptance as
          provided in Section 2 of the Agreement, provided that the payments for
          such equipment shall be made pursuant the terms set forth in Section
          5.3 of the Agreement.

2.-  Partial Deliveries

     (i)  RSS Equipment

          Partial deliveries of an Order for RSS equipment shall be allowed only
          in the following circumstances:

          a.   For any order of RSS equipment Airspan may deliver no less than
               750 RSS units at any one time;

          b.   where Airspan has made a partial delivery in accordance with a.
               above, the remaining quantities of the Order; or

          c.   unless otherwise agreed in writing by the Parties.

     (ii) RBS Equipment

          Partial RBS deliveries shall only be allowed if Airspan delivers
          complete units of RBS Kits, either 27B or 18B RBS as per the
          Description of the RBS Kit, unless otherwise agreed in writing by the
          Parties.

     (iii) Segregated RBS Equipment or Spare Parts

          Partial segregated RBS Equipment or Spare Parts deliveries shall be
          only allowed to the 50% of the respective complete Order, unless
          otherwise agreed in writing by the Parties.

                                     Page 2
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex J
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

     (iv) Partial shipments as provided above, shall not release Airspan of its
          obligations to deliver on time such Products as provided in this Annex
          J. Any delay in the delivery of such Products shall be subject to the
          terms set forth in section 3.4 of the Agreement.

                                     Page 3
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex K
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

                                     ANNEX K

                               PURCHASE COMMITMENT

                                     Page 1
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex K
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

                                    ANNEX "K"
                               PURCHASE COMMITMENT
--------------------------------------------------------------------------------

1.-  Total Purchase Commitment. Axtel hereby agrees to purchase and take
     delivery US$[ * ] Dollars ([ * ] United States Dollars) of Airspan
     equipment from December 22, 2004 through to December 31, 2006 (the
     "Purchase Commitment").

2.-  Purchase Commitment Fulfillment. The Parties hereby agree that the Purchase
     Commitment mentioned above will be fulfilled taking in consideration the
     following terms and conditions:

     a)   Second Lines Activation Fees. US$[ * ] ([ * ] Dollars) of Second Lines
          Activation Fees set forth in Section 22 of the Agreement, will be
          included in the Purchase Commitment as and when paid by Axtel.

     b)   The Commercial Terms Letter Purchase. The US$[ * ] Dollars ([ * ]
          United States Dollars) of equipment detailed in the Special Payment
          and Commercial terms letter dated [ * ] for delivery between [ * ]
          will be included in the Purchase Commitment as and when delivered;

     c)   Minimum Purchase of RSS Equipment. Axtel shall purchase and take
          delivery of a minimum of [ * ] RSS from May 1, 2005 through to July
          31, 2006 (for an approximately amount of US$[ * ] Dollars);

          RSS orders placed in accordance with c) above shall be equal to or
          greater than [ * ] units per month

     d)   Minimum Purchase of RBS Equipment. From [ * ], Axtel shall purchase
          and take delivery of US$[ * ] Dollars ([ * ] Dollars) of Proximity
          Base Station Equipment;

     e)   Minimum Purchase of Airspan Equipment (January - December 2006). For
          the calendar year 2006, Axtel shall purchase and take delivery of a
          minimum of US$[ * ] ([ * ] United States Dollars) of any Airspan
          equipment, provided that, of such amount, US$[ * ] shall be of Airspan
          Non

          RSS Equipment and the remaining amount (US$[ * ]) shall be of any
          Airspan equipment.

                                     Page 2
<PAGE>

Note: Portions of this exhibit indicated by "[ * ]" are subject to a
confidential treatment request, and have been omitted from this exhibit.
Complete, unredacted copies of this exhibit have been filed with the Securities
and Exchange Commission as part of the Company's confidential treatment request.

Annex K
Purchase and License Agreement for FWA Equipment (December 2004)

--------------------------------------------------------------------------------

          For the avoidance of doubt, the US$[ * ] Dollars of purchases required
          in f) below will be included in this $[ * ] Dollars total to the
          extent that the equipment is delivered in 2006.

     f)   Minimum Purchase of Airspan Equipment (August - December 2006). From
          August 1, 2006 through to December 31, 2006, Axtel shall purchase and
          take delivery of an additional [ * ] RSSs or other Airspan products
          with a minimum purchase price of US$[ * ] Dollars ([ * ] United States
          Dollars);

          In order for Airspan to continue its obligation to supply FWA
          equipment beyond May 1st, 2006, Axtel will be required to place and
          maintain orders of [ * ] RSS units a month from January 1st 2006

     g)   The parties agree that in July 2005 they will discuss and schedule, if
          possible, the delivery times for future purchases under the Purchase
          Commitment, taking in consideration the terms and conditions set forth
          in this Agreement.

3.   Special Term. Any purchase made by Axtel in 2005 for an amount in excess of
     the amounts set forth in sections (a), (b), (c) and (d) above, shall be
     accounted for as an Axtel purchase under sections (e) and (f) above, so in
     the aggregate the Purchase Commitment of Axtel shall not be greater than
     the amount of US$[ * ] Dollars ([ * ] United States Dollars).

                                     Page 3

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