<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 THIS COMPANY'S CONFIDENTIAL TREATMENT REQUEST.

                                                                   EXHIBIT 10.30

                                SUPPLY AGREEMENT
                                ----------------

This Supply Agreement (the "Agreement") is made effective as of the 14th day of
September, 2001, (the "Effective Date"), by and between AIRSPAN NETWORKS INC., a
corporation organised under the laws of Washington, with its principal place of
business at 13450 West Sunrise Boulevard, Suite 430, Sunrise, Florida, 33323,
U.S.A. ("ANI"), and MONARCH COMMUNICATIONS LIMITED a company organised under the
laws of Nigeria with its principal office at Orbital House, No 180, Awolowo
Road, Ikoyi, Lagos, Nigeria ("Purchaser").

                                   WITNESSETH:

WHEREAS, ANI is engaged in the design and manufacture of various
telecommunications product lines including, among others, those ANI products
more completely described in Exhibit A hereto (the ANI products described in
Exhibit A of this Agreement, as from time to time amended in accordance with the
provisions of this Agreement, are hereinafter called the "ANI Products"); and

WHEREAS, Purchaser is engaged in the operation of telecommunications systems;
and

WHEREAS, during the Term (as defined below) of this Agreement, ANI desires to
supply to Purchaser, and Purchaser wishes to acquire from ANI, the ANI Products
on the terms and conditions contained in this Agreement.

NOW, THEREFORE, in consideration of the mutual promises herein contained, it is
hereby agreed as follows:

1.       SCOPE.


         1.1.This Agreement shall remain in effect for a period of 3 years from
the Effective Date (the "Term").

         1.2. During the Term, in accordance with each purchase order issued by
Purchaser and accepted by ANI, ANI shall:

               a. Engineer, sell, and deliver that equipment so specified in the
               order ("Equipment" being defined as the hardware component

SUPPLY AGREEMENT - PAGE 1
<PAGE>

               of each product being offered under the terms and conditions of
               this Agreement);

               b. Grant to Purchaser a non-transferable, non-exclusive, paid-up
               licence to use the Software (as defined in Section 10.1) during
               the useful life of the associated Equipment on the terms and
               conditions set forth in the Software Licence, Section 10; and

               c. Test, install and commission the Equipment and/or Software and
               integrate the Equipment and/or Software in accordance with ANI's
               specification therefor with third party equipment agreed upon by
               both parties (the "Installation Services") if such services are
               included in the price of the Equipment or Software or if such
               services are ordered separately.

               d. Train Monarch staff to enable them engineer, operate and
               maintain the system. In this regard, training shall be provided
               by ANI for all facets of the Hardware and Software components of
               the ANI Products as follows:

               i.   Installation: on-the-job training will be provided to a
                    limited number of Purchaser's engineers during the provision
                    of Installation Services by ANI ;

               ii.  Post Installation [Operation and Maintenance]: training will
                    be provided by ANI at the times and location(s) agreed upon
                    by the parties at the rates set forth in Exhibit B, the
                    Price List.

          1.3. ANI will also cooperate with Purchaser to develop Purchaser's
               post project operations management strategy , which will
               incorporate manning levels and skills requirements. The parties
               will develop a draft proposal by 30 September 2001 for review by
               Purchaser.

          1.4  ANI will make spare parts available for purchase by Purchaser for
               a period of ten years from the date of Shipment of the
               corresponding Equipment.

2.       ORDERING PROCEDURE.

          2.1 The following procedures shall be followed with respect to each
          purchase order issued by Purchaser:

          a. During the Term, Purchaser will inform ANI of its intent to
          purchase Equipment and Installation Services, and license Software, by
          sending


SUPPLY AGREEMENT - PAGE 2

<PAGE>

          to ANI a written order. This written order (the "Purchase Order") will
          state the type of Equipment, System, or Installation Services that
          Purchaser wants to purchase and the Software Purchaser wants to
          licence as well as the price of the ordered items (the "Contract
          Price").

          b. Each Purchase Order shall specifically incorporate by reference the
          terms and conditions of this Agreement, and no additional or different
          terms and conditions stated in a Purchase Order, any letter, or
          otherwise shall be binding unless expressly referred and agreed to by
          both parties in writing. In the event of a conflict between the terms
          and conditions of this Agreement and of any Purchase Order issued
          hereunder, or if the Purchase Order does not reference the terms and
          conditions of this Agreement, the terms and conditions of this
          Agreement shall prevail.

          2.2 TYPE APPROVAL

          ANI shall provide to the Purchaser a copy of the Nigerian
          Communications Commission Type Approval Certificate, which allows the
          products on order to be used in Nigeria.

     3.   EQUIPMENT FOR MONARCH NIGERIA PROJECT

          3.1. ANI has agreed to provide and Monarch has agreed to provide
          equipment, software and services set forth in the Schedule of
          Equipment for the initial order for the Monarch Nigeria Project
          attached to this Agreement as Exhibit B. and incorporated herein as
          part of the agreement at the price detailed and on the terms and
          conditions specified in Exhibit B. The parties agree that the terms
          and conditions specified in Exhibit B. shall govern the supply and
          purchase of the equipment, software and services listed therein for
          the initial order.

          3.2. CONTRACT PRICE.

          3.2.1. The Contract Price for each item of Equipment, Installation
          Services, or Software is as specified in Exhibit B and shall be paid
          to ANI in US Dollars (USD or US$).

          3.2.2. The Contract Price for Equipment and Software includes:

               a.   The price of the Equipment;

               b.   The fee for the licensing of the Software;

SUPPLY AGREEMENT - PAGE 3
<PAGE>

               c.   The charges for the warranty of the Equipment and Software
                    in accordance with Section 7;

               d.   Transportation and insurance charges in accordance with
                    ANI's Contract Price set forth in Section 3.2.4 and ANI's
                    delivery obligations set forth in Section 5.1;

               e.   Charges for training Monarch staff in accordance with
                    Paragraph 1.2(d).i and 1.2(d).ii; and

               3.2.3. The Contract Price for Installation Services includes:

     a.   The price for installation and commissioning the Equipment and
          Software including the integration of the Equipment and/or Software in
          accordance with ANI's specification therefor with third party
          equipment as agreed upon by both parties. ANI shall provide all
          necessary tools and test equipment required for the installation,
          testing and commissioning of the Equipment and Software. Commissioning
          includes successful completion of the Commissioning tests agreed upon
          by the parties and set forth in Exhibit C.

     b.   ANI's Contract Price for Installation and Commissioning is quoted
          separately for: (i) infrastructure (i.e. ACs and CTs); and (ii)
          Subscriber Terminal (STs).

     3.2.4. All prices quoted in Exhibit B are CIP, Lagos Port Nigeria .

4.   PAYMENT TERMS.

     4.1 If a Purchase Order is accepted by ANI, ANI will issue an invoice (the
     "Invoice") to Purchaser within fifteen (15) business days of ANI's receipt
     of the written Purchase Order from Purchaser. The Invoice specifically
     shall identify the Equipment, Software, or Systems so ordered, and the
     Contract Price of such items. Installation Services shall separately be
     invoiced within fifteen (15) business days of ANI's receipt of a written
     Purchase Order for same. The Invoice also shall state the total amount due
     to ANI from Purchaser.

     4.2 The Purchaser shall open a confirmed irrevocable documentary Letter of
     Credit in favour of ANI with a bank acceptable to ANI in respect of
     payments for Equipment and Software listed in Appendix A and such
     installation services to be provided by ANI under this agreement. The
     Letter of Credit shall be in an amount equal to the value of the total
     Contract Price (equipment and installation) and shall have a validity
     period of 180 Days.

SUPPLY AGREEMENT - PAGE 4


<PAGE>

         4.2.1. Draw down on the Letter of Credit shall be as follows:

          a.   Ten [10] percent of the total value of the contract price as down
               payment for which ANI shall issue a Bank Bond in favour of the
               Purchaser.

          b.   Fifty [50] percent of the value of the Equipment and Software
               ordered shall be paid to ANI fifty (50) days after the date of
               Delivery on the presentation of the following documents
                    i.   ANI attested Invoice;
                    ii.  Final Invoice;
                    iii. Airwaybill of lading
                    iv.  Packing List.
                    v.   Clean report of finding.

          c.   The balance of forty [40] percent of the value of the Equipment
               and Software in the Purchase Order shall be paid one hundred and
               fifty (150) days after the date of Delivery.

          4.2.2. The balance of the 90% of installation charges shall be paid as
                 follows:

                 o    50% on the start of installation; and

                 o    40% on completion of installation.

<PAGE>


         4.3      In the case of payment by wire (or telegraphic) transfer, the
                  funds due must be received in ANI's designated bank. The
                  transfer instructions are:

                  Bank:                   Bank of America Inc.

                  Address:                10th Floor, 1 Financial Plaza,
                                          Fort Lauderdale,
                                          FL 33394
                                          U.S.A.

                  Sort Code:              063100277

                  Account Name:           Airspan Networks Inc.

                  Account No:             0034 4784 5294

                  Further Instructions:   Reference (Purchaser's name)
                                          P.O. No. _______,
                                          Payment of Invoice No. _________.

5.   DELIVERY, TITLE, AND RISK OF LOSS.

     5.1. ANI shall make arrangements for the delivery of all Equipment and
          Software ordered by Purchaser as detailed in Exhibit B, CIP Lagos Port
          Nigeria as per Incoterms 2000 ("Delivery"); upon which Purchaser will
          make arrangements for their collection from the Port. ANI agrees to
          use a reputable freight forwarder which it shall identify to the
          Purchaser prior to shipment; and the parties shall agree upon the mode
          of shipment and the carrier.

          In this Agreement, "Incoterms" means the most recent international
          rules for the interpretation of trade terms published by the
          International Chamber of Commerce as in force at the date when this
          Agreement is made. Unless the context otherwise requires, any term or
          expression which is defined in or given a particular meaning by the
          provisions of the Incoterms shall have the same meaning in this
          Agreement, but if there is any conflict between the provisions of the
          Incoterms and this Agreement, the latter shall prevail.

     5.2. All risk of loss or damage to the Equipment and Software will pass to
          Purchaser upon Delivery.

SUPPLY AGREEMENT - PAGE 6
<PAGE>

     5.3. Title to the Equipment shall pass to Purchaser on Delivery.

     5.4. The Software shall at all times remain the exclusive property of ANI.

     5.5. ANI shall not make partial deliveries of Purchaser's orders unless the
          Purchaser has been advised and has agreed in writing to accept such
          partial delivery in respect of any particular order, such agreement
          not to be unreasonable withheld or delayed

     5.6. ANI will use reasonable efforts to meet Purchaser's requested delivery
          schedules for Equipment and Software, but ANI reserves the right to
          refuse, cancel, or delay delivery to Purchaser when Purchaser's credit
          is impaired, when Purchaser is delinquent in payments or fails to meet
          other credit or financial requirements reasonably established by ANI,
          and agreed by the parties in writing. Should orders for Equipment and
          Software exceed ANI's available inventory, ANI will disclose its
          available inventory and make deliveries on a basis discussed and
          agreed with the Purchaser. ANI shall not be liable for any indirect,
          consequential, or special losses or damages (including, but not
          limited to, loss of income or profit and loss of data) that may be
          suffered by the Purchaser or by any other person for failure to
          deliver or for any delay or error in delivery of Equipment or Software
          for any reason whatsoever.

     5.7. In the event that the actual date of Shipment is later than the agreed
          upon date of Shipment for an accepted Purchase Order or part thereof,
          Purchaser may levy a penalty of two percent (2%) per week of the
          Contract Price of the Equipment and/or Software directly affected by
          the delay up to a maximum amount of twelve percent (12%) of the
          Contract Price of such affected Equipment or Software. Such penalty
          must be invoiced by the Purchaser within thirty (30) days of the
          actual date of Shipment and ANI will pay such invoices within thirty
          days of receipt or will set-off such amounts against amounts due and
          payable to ANI. A two-week grace period will apply before Purchaser
          may levy a penalty but if the delayed Equipment or Software is not
          delivered during the grace period, the penalty may be levied from the
          first day of delay.

     5.8. If Purchaser has any ANI owned Equipment in its possession then:

          a. Purchaser shall ensure that Equipment is clearly marked as the
          property of ANI, and if asked, shall inform any third parties that the
          Equipment is the property of ANI;

SUPPLY AGREEMENT - PAGE 7
<PAGE>

          b. Purchaser shall not purport to create any security, mortgage, lien
          or pledge over the Equipment, or otherwise deal with the Equipment
          without ANI's express written consent; and

          c. In the event of any threatened seizure of the Equipment by any
          third parties, and on termination or expiration of this Agreement, or
          any contract made pursuant to it, ANI shall have the right to obtain a
          court order to restrain and /or prevent such seizure; without
          prejudice to any other remedy which it may have at law in respect of
          the equipment.

6.   SUBCONTRACTING

     ANI reserves the right to subcontract such portions of: (a) the Equipment
     manufacture and/or Software development and supply; and/or (b) installation
     to subcontractors of ANI's choice as ANI deems appropriate.

     The prior written consent of the Purchaser shall be obtained for any sub
     contract or assignment in accordance with Paragraph 6(b) above, such
     consent not to be unreasonably withheld or delayed; so however that ANI
     shall not be relieved of any of its obligations under this agreement by
     reason of such subcontract or assignment.

7.   WARRANTY.

     7.1 THE WARRANTIES SET FORTH IN SECTIONS 7 AND 8 OF THIS AGREEMENT ARE IN
     LIEU OF, AND ANI HEREBY DISCLAIMS, ALL OTHER WARRANTIES AND CONDITIONS,
     WHETHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED TERMS
     OF SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE.

     7.2 Subject to Sections 7.3 and 7.4, ANI warrants that the Equipment sold
     to Purchaser under this Agreement shall, under normal use and service, be
     free from defects in materials and faulty workmanship, and that the
     Software licensed to Purchaser under this Agreement shall conform in all
     material respects to ANI's published specifications therefor. The warranty
     period for any item of Equipment and related Software shall be eighteen
     (18) months from Delivery (hereinafter, this period of time shall be
     referred to as the " Warranty Period.")

     7.3 ANI's obligation and Purchaser's sole remedy under this warranty are
     limited to the replacement or repair, , of the defective Equipment or
     Software within the Warranty Period. ANI shall have no obligation to remedy
     any such defect if it can be shown that: (a) the Equipment or

SUPPLY AGREEMENT - PAGE 8
<PAGE>

     Software was altered, repaired, or reworked by any party other than ANI
     without ANI's prior written consent; (b) such defects were the result of
     Purchaser's or a third party's improper storage, mishandling, abuse, or
     misuse of the Equipment or Software; (c) such defects were the result of
     Purchaser's or a third party's use of the Equipment or Software in
     conjunction with equipment electronically or mechanically incompatible or
     of an inferior quality; or (d) the defect was the result of damage by fire,
     explosion, power failure, or any act of nature.

     7.4 The Purchaser may require ANI to provide on-site operation and
     maintenance services on such terms and conditions agreed by the parties.

     7.5  Subject to the provisions of this warranty clause, defective parts or
          components must be returned by Purchaser to ANI's point of manufacture
          facility, freight prepaid, within the Warranty Period, and said
          defective parts will be repaired or replaced by ANI at no charge to
          Purchaser. In connection with such return by Purchaser, Purchaser
          shall comply with ANI's (Return Material Authorisation (RMA)
          procedures.) Risk of loss or damage to Equipment or Software returned
          to ANI for repair or replacement shall be borne by Purchaser until
          delivery to ANI. Upon delivery of such Equipment or Software, ANI
          shall assume the risk of loss or damage until that time that the
          Equipment or Software being repaired or replaced is returned and
          delivered to Purchaser. Purchaser will pay the transportation costs
          for Equipment or Software shipped to ANI for repair or replacement
          save where the repair or replacement arose out of faulty and defective
          design in workmanship or manufacture of the equipment or software

     7.6  ANI shall pay all transportation costs associated with returning
          repaired or replaced Equipment or Software to Purchaser unless there
          was no fault found (NFF), in which event, Purchaser shall pay such
          transportation costs along with ANI's then prevailing NFF charge.

     7.7  ANI will charge Purchaser for any maintenance carried out which is not
     covered by the warranties contained in Section 7.2 or Section 8 at the
     rates agreed by the parties for such services.

8.   WARRANTY ON REPAIRED MATERIALS.

     ANI warrants that the Equipment or Software returned by ANI following
     repair or replacement by ANI shall be free from defects in materials and
     faulty workmanship and that the Software will conform in all material
     respects to ANI's published specifications therefor for ninety

SUPPLY AGREEMENT - PAGE 9
<PAGE>

     (90) days from the date of Delivery or until the end of the Warranty
     Period, whichever is longer.

9.   LIMITATION OF LIABILITY.

     9.1 WITHOUT PREJUDICE TO SECTION 9.3, NEITHER ANI NOR ANY OF ITS OFFICERS,
     DIRECTORS, EMPLOYEES, AGENTS, REPRESENTATIVES, SHAREHOLDERS, OR AFFILIATES
     (ANI AND SUCH OTHER PERSONS, THE "ANI PARTIES"), SHALL HAVE ANY LIABILITY
     TO PURCHASER IN CONTRACT, TORT OR OTHERWISE (INCLUDING WITHOUT LIMITATION
     NEGLIGENCE OR BREACH OF STATUTORY DUTY) FOR LOSS OF PROFITS, INCOME,
     REVENUE OR DATA, OR INCIDENTAL, CONSEQUENTIAL, INDIRECT OR PUNITIVE DAMAGES
     OR LOSSES, ARISING FROM OR IN CONNECTION WITH THIS AGREEMENT, ANY PURCHASE
     ORDER PLACED PURSUANT TO THIS AGREEMENT OR ANY COLLATERAL CONTRACT, OR FROM
     OR IN CONNECTION WITH THE EQUIPMENT OR THE SOFTWARE OR THE USE THEREOF OR
     THE INABILITY TO USE THEM EITHER SEPARATELY OR IN COMBINATION WITH OTHER
     EQUIPMENT OR SOFTWARE,

     9.2. ANI shall be liable for physical damage to property due to ANI's
     negligence up to a maximum aggregate amount of two million US Dollars
     (USD2,000,000).

     9.3 Nothing in this Agreement shall exclude or in any way limit ANI
     liability for death or personal injury caused by its negligence.

10.  SOFTWARE LICENCE.

     10.1 ANI shall grant Purchaser a nonexclusive, non-transferrable license to
     use the Software, only with the Equipment purchased under this Agreement.
     Software licensed under this Agreement is defined as computer programs
     contained on a magnetic tape, disc, semiconductor device, or other memory,
     including: (a) hardwired logic instructions which manipulate data in the
     central processor and which control input-output operations, error
     diagnostics, and recovery routine; and (b) instruction sequences in
     machine-readable code which control call processing, peripheral equipment,
     and administration and maintenance functions as well as associated
     documentation used to describe, maintain, and use the programs.

     10.2 Any Software provided to Purchaser by ANI shall be treated as the
     exclusive property of ANI, and Purchaser shall: (1) treat such Software as
     Confidential Information under Section 12 of this Agreement; (2) utilise
     such Software or any portions or aspects thereof (including any methods or
     concepts utilised therein) solely in conjunction with the Equipment;
     (3)return to ANI all memory media,

SUPPLY AGREEMENT - PAGE 10
<PAGE>

     documentation and/or other material that has been modified, updated or
     replaced; (4) not modify, disassemble or decompile such Software, or
     reverse engineer any portion of the Software or functioning of the ANI
     Products, or permit others to do so, without ANI's prior written consent;
     and (5) not reproduce or copy such Software in whole or in part except for
     backup and archival purposes or as otherwise permitted in writing by ANI.
     (Information to achieve interoperability of the Software with independently
     created programs, within the meaning of Article 6 of the Directive on the
     Legal Protection of Computer Programs shall be provided by ANI to the
     Purchaser upon the signing of this agreement.

     10.3 The obligations of Purchaser under this Section 10 shall survive the
     termination of the Agreement for any reason and shall continue even if the
     Software is no longer used with the Equipment.

11.  DOCUMENTATION.

     For the initial Purchase Order, ANI shall furnish six full sets of
     documentation, in hard and soft copies to the Purchaser at no extra cost,
     for the products specified in Exhibit A including cabling diagrams to be
     used for the operation and maintenance of the Equipment and Software.
     Thereafter, for documentation updates and further Purchase Orders ANI will
     provide a single copy on CD-ROM and in hard copy. All such documentation is
     to be treated in accordance with the terms of Section 12. Updates to the
     documentation shall be at no charge during the Warranty Period.

12.  CONFIDENTIAL INFORMATION.

     12.1 The Confidentiality Agreement, dated 22 August 2001 between Airspan
     Communications Ltd. and the Purchaser is incorporated herein by reference.
     The obligations of Sections 10 and 12 will survive termination or
     cancellation of this Agreement.

13.  EXCUSABLE DELAY

     None of the parties shall suffer any liability for non-performance,
     defective performance, or late performance under this Agreement due to
     causes beyond its control and without its fault or negligence such as, but
     not limited to, acts of God, war (including civil war), civil unrest, acts
     of government, fire, floods, explosions, the elements, epidemics,
     quarantine, restrictions, strikes, lock-outs, plant shutdown. In the event
     of excusable delay as defined in the preceding sentence, then the affected
     party, upon giving prompt written notice to the other shall be excused from
     such performance on a day-to-day basis to the

SUPPLY AGREEMENT - PAGE 11
<PAGE>

     extent of such prevention, restriction, or interference (and the other
     party shall likewise be excused from performance of its obligations on a
     day-to-day basis to the extent that the party's obligations relate to the
     performance so prevented, restricted, or interfered with), provided that
     the party in default shall use its best endeavours to avoid or remove such
     causes of non-performance and both parties shall proceed to perform with
     dispatch whenever such causes are removed or cease to exist.

     Each party reserves the right to cancel or otherwise terminate this
     Agreement if the other's performance is delayed for a period of more than
     ninety (90) days.

14.  GENERAL INDEMNITY.

     14.1 ANI agrees to indemnify and hold Purchaser harmless against all costs,
     expenses, liabilities, damages, losses, claims, or proceedings incurred by
     Purchaser in an action by a third party alleging that Purchaser's use of
     the Equipment or the Software, separately or in combination, as a whole or
     in part, constitutes an infringement of their intellectual property rights
     wherever in the world enforceable, including applications to register and
     rights to apply for any such rights ("Intellectual Property Rights"). ANI
     agrees to defend Purchaser against any such claims and to pay all
     litigation costs, reasonable lawyer's fees, settlement payments, and any
     damages awarded or resulting from any such claim.

     14.2 Purchaser shall promptly advise ANI of any such suit, claim, or
     proceeding and shall co-operate with ANI in the defence or settlement
     thereof. ANI shall have sole control of the defence of any action involving
     such a claim and of all negotiations for its settlement.

     14.3 In the event that an injunction is obtained against Purchaser's use of
     the Equipment and/or the Software, in whole or in part, as a result of any
     such claim under Section 14.1, ANI shall use its best efforts to either:
     (a) procure for Purchaser the right to continue using the portions of the
     Equipment or the Software enjoined from use; or (b) replace or modify the
     same with functionally equivalent or better Equipment and/or Software so
     that Purchaser's use is not subject to any such injunction. In the event
     that ANI cannot perform the remedies set forth in Sections 14.3(a) or
     14.3(b), then Purchaser shall have the right to return such Equipment and
     the Software to ANI. In the event of such return, ANI shall refund the full
     value of the Equipment and the licence to use the Software within fifteen
     (15) days of the receipt by ANI of the Equipment and the Software.

SUPPLY AGREEMENT - PAGE 12
<PAGE>

     14.4 This indemnity shall not apply to claims arising in respect of the use
     of the Equipment or Software supplied by ANI or manufactured by its
     suppliers in accordance with any design or any special instruction
     furnished by Purchaser, or which Purchaser uses in a manner or for a
     purpose not contemplated by this Agreement.

     14.5 The provisions of this Section 14 set forth the entire obligation of
     ANI with respect to any claim of infringement of Intellectual Property
     Rights.

15.  REMEDIES AND TERMINATION.

     15.1 Either party shall have the right, prior to payment to ANI of the
     Invoice Total, to suspend its performance under this Agreement by written
     notice to the other Party if that party shall: (a) become insolvent; (b)
     have a receiver or manager appointed over the whole or any part of its
     assets or business; (c) make any composition or arrangement with its
     creditors; (d) take or suffer any similar action in consequence of debt, or
     an order or resolution is made for its dissolution or liquidation (other
     than for the purpose of amalgamation or reconstruction). .

     15.2 In the event of any material breach of this Agreement by either party
     which shall continue for thirty (30) or more days after written notice of
     such breach (including a reasonably detailed statement of the nature of
     such breach) shall have been given to the breaching party by the aggrieved
     party, the aggrieved party shall be entitled at its option: (a) to avail
     itself of any and all remedies available at law or equity; or (b) to
     terminate this Agreement; or (c) if the aggrieved party is ANI, to suspend
     performance of all of its obligations under the Agreement for as long as
     the breach continues uncorrected or (d) if the aggrieved party is the
     Purchaser, to suspend payment of any monies due and payable to ANI until
     the breach is corrected.

     15.3 In the event (a) either party fails timely to discharge its
     obligations under this Agreement and (b) the aggrieved party employs a
     lawyer in order to collect any amount due and unpaid or to enforce any
     right or remedy hereunder, then the defaulting party agrees that, in
     addition to all amounts due hereunder, it shall pay all costs of collection
     or enforcement including court costs and reasonable Lawyer's fees.

16.      PURCHASER'S RESPONSIBILITIES.

     To the extent that Purchaser requests Installation Services, and ANI
     accepts the Purchase Order for such Installation Services, then:

SUPPLY AGREEMENT - PAGE 13
<PAGE>

     a.   Purchaser shall ensure that all ANI-designated personnel have access
          to Purchaser's premises and the Equipment during the times necessary
          to install, maintain, and service the Equipment. ANI's personnel shall
          comply with site and security regulations as specified by Purchaser.

     b.   Purchaser shall provide reasonable working space and facilities
          including cooling, light, ventilation, electric current and outlets
          for use by ANI's designated personnel. Adequate storage space for
          equipment and materials shall be made available by Purchaser as
          required. All such facilities shall be provided at no charge to ANI.

     c.   Any information which ANI reasonably requests from Purchaser and which
          is required for ANI to properly install or maintain the Equipment
          shall be provided by Purchaser in a timely fashion and form reasonably
          specified by ANI.

     d.   Purchaser shall not perform, or attempt to perform, or cause to be
          performed any maintenance or repair to the Equipment during the term
          of this Agreement, other than pursuant to this Agreement, without
          ANI's prior, written consent.

17.  ANI's RESPONSIBILITIES

     To the extent that Purchaser requests Installation/or and Maintenance
     Services and/or training services, and ANI accepts the Purchase Order for
     such Services, then:

     a.   ANI shall provide all necessary tools and test equipment required for
          the installation, testing and commissioning of the Equipment and
          Software.

     b.   ANI shall work in conjunction with other contractors of Monarch for
          the interfacing and integration of ANI equipment and Software with
          third party software.

     c.   ANI shall ensure that Monarch Staff are adequately trained in all
          stages of the equipment installation, integration, testing,
          commissioning, operations and maintenance stages.

     d.   ANI shall provide Acceptance Test Procedures, which shall be agreeable
          to both parties.

18.  NOTICES.

SUPPLY AGREEMENT - PAGE 14
<PAGE>

     All notices, requests, consents and other communications hereunder must be
     in writing and will be deemed to have been properly given when actually
     received by the party to whom sent, at the following addresses:

     If to ANI:                              If to PURCHASER:

     FAO:  Chief Financial Officer           Sade Adetiba and V. K. Fashola
     Airspan Networks Inc.                   Monarch Communications Ltd.
     13450  West  Sunrise  Boulevard,        Orbital House,
     Suite  430,                             No. 180 Awolowo Road,
     Sunrise,                                Ikoyi,
     Florida, 33323,                         Lagos
     U.S.A.                                  Nigeria

     With a copy to:

     Contracts Manager
     Airspan Communications Ltd.
     Cambridge House,
     Oxford Road,
     Uxbridge, Middlesex
     UB8  1UN
     England

19.  HARDWARE AND SOFTWARE VERIFICATION

     19.1 If Installation Services are ordered, ANI shall, upon completion of
     the installation, test the Equipment. Purchaser may witness the
     installation and test performance.

     19.2 When the Equipment and Software have satisfactorily completed all of
     ANI's tests, ANI shall provide Purchaser with a "Hardware and Software
     Verification" certificate. The written acceptance of the certificate by
     Purchaser will be deemed, for purposes of this Agreement, as "Completion of
     Installation".

     19.3 The tests that the ANI Products must successfully complete as part of
     the commissioning process are set forth in Exhibit C hereto. Such
     commissioning tests may be amended from time to time by agreement of both
     parties in writing.

20.  PUBLICITY.

SUPPLY AGREEMENT - PAGE 15
<PAGE>


         Both parties agree not to publish any press releases or otherwise
         publicise the existence, or any of the terms, of this Agreement without
         the prior written consent of the other party.

21.      MISCELLANEOUS.

         21.1 This Agreement shall be construed in accordance with and governed
         by the laws of England, without regard to its conflicts of law rules.

         21.2 (a) Any dispute, controversy or claim between the parties arising
         out of, or in connection with, this Agreement, or the breach,
         termination or validity thereof will be resolved by mutual agreement of
         the parties. If any dispute, controversy, or claim arising out of or
         relating to this Agreement, or the breach, termination, or validity
         thereof is unable to be resolved by mutual agreement of the parties,
         then any such dispute shall be finally resolved by arbitration under
         the Rules of the Chartered Institute of Arbitrators, England, as then
         in force, by one or more arbitrators appointed in accordance with said
         Rules. The place of arbitration shall be London, England. The language
         used during arbitration shall be the English language. The parties
         agree that the award of the arbitrator(s) shall, except as provided
         below, be the sole and exclusive remedy between them regarding the
         claims, counterclaims, issues or accounting presented or pled to the
         arbitrator(s) and that the award may be enforced in other jurisdiction
         in any manner provided by law. The arbitrator(s) shall be entitled to
         award to the substantially prevailing party its attorneys fees and
         costs incurred in connection with the arbitration proceedings and
         preparation for the same.

         (b) Notwithstanding the provisions of item (a) above, the parties
         hereto shall be entitled to seek injunctive or similar relief from a
         court of competent jurisdiction with respect to any actual, impending
         or threatened breach of confidentiality provisions and other provisions
         of this Agreement, including provisions intended to protect
         intellectual property rights. In any court proceedings contemplated by
         this item (b), the substantially prevailing party shall be entitled to
         recover from the other party its attorneys fees and costs.

         21.3 The delay or failure on the part of any of the parties to enforce
         at any time any of the provisions of this Agreement or any right with
         respect thereto, or to exercise any option herein provided shall in no
         way be construed to be a waiver of such provision, rights, or options,
         or in any way to affect its right later to enforce them. The exercise
         by any of the parties of its rights hereunder or of any options
         hereunder under the terms or covenants herein shall not preclude or
         prejudice the party

SUPPLY AGREEMENT - PAGE 16
<PAGE>

         from thereafter exercising the same or any right which it may have
         under this Agreement, irrespective of any previous action or
         proceeding taken by the party hereunder.

         21.4 This Agreement shall be binding upon and inure to the benefit of
         the successors, legal representatives and assigns of both parties.

         21.5 This Agreement and any Exhibit hereto shall be modified only by an
         instrument in writing that is signed by duly authorised representatives
         of the parties.

         21.6 The provisions of this Agreement are severable, and if any
         provision is held invalid or unenforceable in whole or in part in any
         jurisdiction, then such invalidity or unenforceability will affect only
         such provision or part thereof in such jurisdiction, and will not in
         any manner affect the provision in any other jurisdiction, or any other
         provision in this Agreement in any other jurisdiction. To the extent
         legally permissible, an arrangement that reflects the original intent
         of the parties will be substituted for such invalid or unenforceable
         provision.

         21.7 All obligations that by their nature survive the expiration,
         cancellation or termination of this Agreement shall remain in effect
         after its expiration, cancellation or termination.

         21.8 None of the parties shall be entitled to assign this Agreement or
         its rights under it without the prior written consent of the other
         party, and such consent shall not to be unreasonably withheld or
         delayed.

         21.9 In the performance of its obligations under this Agreement, the
         parties shall at all times strictly comply with all export laws,
         regulations, and orders of the United Kingdom and the United States of
         America. Purchaser specifically acknowledges that Equipment, Software,
         or technology obtained from ANI pursuant to this Agreement shall not be
         exported, re-exported, transhipped, disclosed, diverted, or
         transferred, directly or indirectly, contrary to U.K. and U.S. laws,
         orders or regulations, which ANI shall provide to the purchaser on
         request.

         21.10 TAXES

         It is hereby agreed that each party shall be responsible for such
         taxes, levies and other charges issued in their respective countries in
         respect of this agreement.

22.      This document constitutes the entire agreement between the parties with
         respect to the subject matter hereof, and supersedes all previous
         communications, representations, understandings and agreements,

SUPPLY AGREEMENT - PAGE 17
<PAGE>

         either oral or written, between the parties or any official or
         representative thereof.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
         duly executed as of the Effective Date, such parties acting by their
         officers, being thereunto duly authorised.




AIRSPAN NETWORKS INC.                     MONARCH COMMUNICATIONS LTD.

By:_____________________________              By:__________________________

Name:___________________________              Name:________________________

Title:__________________________              Title:_______________________






SUPPLY AGREEMENT - PAGE 18
<PAGE>


                                    EXHIBIT A

                                 "ANI PRODUCTS"

AS4000 AND AS8100 PRODUCTS. PURCHASER MAY ORDER THE FOLLOWING ITEMS:

<TABLE>
<CAPTION>
--------------------------------------------------------------------------------------------------------------------
<S>    <C>
CATALOGUE NUMBER AND ITEM DESCRIPTION
--------------------------------------------------------------------------------------------------------------------
SUBSCRIBER TERMINAL TYPE

--------------------------------------------------------------------------------------------------------------------
801-6319  : ST-R1,   1-line 64k or 32k POTS (Ant, SIU, internal batt) options: Type 6 Eur
--------------------------------------------------------------------------------------------------------------------
801-6329  : ST-R2,   2-line 64k or 32k POTS (Ant, SIU, internal batt) options: Type 6 Eur
--------------------------------------------------------------------------------------------------------------------
803-6349  : ST-N4,   4-Line 64k or 32k POTS (Ant, SIU) options: Type 6 Eur
--------------------------------------------------------------------------------------------------------------------
804-6319  : ST-B1,   (ISDN 2B+D) (Ant, SIU) options: Type 6 Eur
--------------------------------------------------------------------------------------------------------------------
811-6329  : ST-P1V2, Ethernet+2-Line 64 & 32k POTS (Ant, SIU) options: Type 6 Eur
--------------------------------------------------------------------------------------------------------------------
ST ANCILLARIES AND SPARES
--------------------------------------------------------------------------------------------------------------------
890-0009 : ST antenna drop cable kit (300m standard cable)
--------------------------------------------------------------------------------------------------------------------
605-0010-257 : ST Installation toolkit
--------------------------------------------------------------------------------------------------------------------
CT AND AC RACK MECHANICS
--------------------------------------------------------------------------------------------------------------------
700-0002 : CT Rack with RF Combiner shelf + 2 AS4000 Modem shelves (E1)
--------------------------------------------------------------------------------------------------------------------
703-0002 : Rack with 2 AC shelves
--------------------------------------------------------------------------------------------------------------------
CT ANTENNA SYSTEMS
--------------------------------------------------------------------------------------------------------------------
710-6941 : Directional Antenna, 1 feeder port,  90 Deg 3.4-3.7 GHz
--------------------------------------------------------------------------------------------------------------------
CT ANTENNA FEEDER
--------------------------------------------------------------------------------------------------------------------
712-0050 : CT Antenna Feeder 7/8 inch coaxial  (1x50m)+ Installation kit
--------------------------------------------------------------------------------------------------------------------
CT RF PLUG IN SETS
--------------------------------------------------------------------------------------------------------------------
720-6300 : CT RF full plug in set 3.4-3.6 GHz Plan 1 (2PA+MON+3PSU+2DIPLNA)
--------------------------------------------------------------------------------------------------------------------
CT AS4000 DA MODEM SHELF CARD SETS AND AS4020 MODEM SHELVES
--------------------------------------------------------------------------------------------------------------------
751-6300 : DA Modem shelf full card set (E1) (3.5MHz) 3.4-3.6 GHz Plan 1
(RF+AU+TU+SC+2PSU+5Modems)
--------------------------------------------------------------------------------------------------------------------
AC SHELF PLUG-INS
--------------------------------------------------------------------------------------------------------------------
780-0000 : AC Basic Shelf card set (Generic E1) (2PSU+SC+CTU+XTU)
--------------------------------------------------------------------------------------------------------------------
303-1002-900 : E1 TU card
--------------------------------------------------------------------------------------------------------------------
303-1009-900 : AC CU card
--------------------------------------------------------------------------------------------------------------------
605-0010-235 : AC PTU card
--------------------------------------------------------------------------------------------------------------------
SOFTWARE AND NMS
--------------------------------------------------------------------------------------------------------------------
870-1000 : AS8100/8200 Sitespan Desktop Hardware Platform (Windows NT PC +
Serial port expansion.)
--------------------------------------------------------------------------------------------------------------------
870-2100 : AS8100 Sitespan Client / Server software (AS4000 support) and RTU license
--------------------------------------------------------------------------------------------------------------------
870-2300 : AS8100/8200 Sitespan Shelf License
--------------------------------------------------------------------------------------------------------------------
870-2900 : Annual Maintenance/Upgrade charge for Sitespan software
--------------------------------------------------------------------------------------------------------------------
871-xxxx : V5.x License for 1000 subscribers
--------------------------------------------------------------------------------------------------------------------
872-1000 : STMON for Windows 98 and NT
--------------------------------------------------------------------------------------------------------------------
DOCUMENTATION
--------------------------------------------------------------------------------------------------------------------
880-2000 : AS4000 DA Documentation (CD-ROM)
--------------------------------------------------------------------------------------------------------------------
880-3000 : AS8100/8200 (Sitespan) Documentation (CD-ROM)
--------------------------------------------------------------------------------------------------------------------
SERVICES (NB. ESTIMATE ONLY. TRAVEL AND EXPENSES NOT INCLUDED)
--------------------------------------------------------------------------------------------------------------------
885-2000 : Installation services (per day, excl T&E)
--------------------------------------------------------------------------------------------------------------------
</TABLE>


SUPPLY AGREEMENT - PAGE 19
<PAGE>


                                    EXHIBIT B

                                  "PRICE LIST"
<TABLE>
<CAPTION>
---------------------------------------------------------------- -----------------------------------------------------------
SCHEDULE OF EQUIPMENT FOR MONARCH NIGERIA PROJECT                               Quantities
                                                                 -----------------------------------------------------------
                                                                              Infrastructure                     Subscribers
--------------------------------------------------------- -----------------------------------------------------  -----------
CATEGORIES NUMBER AND ITEM DESCRIPTION                    Price  Agro Dlyan  Breja  Apapa  Agege  Amuwo-Odofia    Units
--------------------------------------------------------- ------------------------------------------------------------------
<S>                                                         <C>      <C>      <C>    <C>    <C>       <C>             <C>
    SUBSCRIBER TERMINAL TYPE

    801-6319 : ST-81,  1-line 84k or 32k POTS (Ant, SIU,    $*                                             *
    internal batt) options:  Type 6 Eur
    801-6329 : ST-R2,  2-line 64k or 32k POTS (Ant, SIU,    $*                                             *
    803-6349 : ST-N4,  4-Line 64k or 32k POTS (Ant, SIU)    $*                                             *
    804-6319 : ST-B1,  (ISDN 28+D) (Ant,  Siu)  options:    $I
    811-6329 :  ST-P1V2,  Ethernet+2-Line  64 & 32k POTS    $*                                             *
    (Ant, SIU) options:  Type 6 Eur
---------------------------------------------------------
      TOTAL SUBSCRIBER TERMINALS
--------------------------------------------------------- ------
    ST ANCILLARIES AND SPARES

    800-0009 : ST antenna drop cable kit (300m  standard    $*                                             *
    cable)
    805-0010-257 : ST installation toolkit                  $*
      TOTAL ST ANCILLARIES AND SPARES
--------------------------------------------------------- ------
CT AND AC RACK MECHANICS

    700-0002  : CT  Rack  with  RF  Combiner  shelf  + 2    $*   2           *     *      *      *
    AS4000 Modem shelves (E1)
    703-0002 : Rack with 2 AC shelves                       $*   2
      TOTAL CT AND AC RACK MECHANICS
--------------------------------------------------------- ------
CT ANTENNA SYSTEMS

    710-6941 :  Directional  Antenna,  1 feeder port, 90    $*   *           *     *      *      *
    Deg 3.4-3.7 GHz

    TOTAL CT ANTENNA SYSTEMS
--------------------------------------------------------- ------
CT ANTENNA FEEDER

    712-0050  :  CT  Antenna  Feeder  7/8  inch  coaxial    $*   *           *     *      *      *
    (1x50m) + installation kit
      TOTAL CT ANTENNA FEEDER
--------------------------------------------------------- ------
CT RF PLUG IN SETS

    720-8300 : CT RF full plug in set  3.4-3.8  GHz Plan    $*   *           *     *      *      *
    1 (2PA+MON+3PSU+2D1PLNA)
      TOTAL CT RF PLUG IN SETS
--------------------------------------------------------- ------
CT AS4000 DA MODEM  SHELF  CARD  SETS AND  AS4020  MODEM

SHELVES

    751-6300 : DA Modem shelf full card set (E1)            $*   *           *     *      *      *
    (3.5MHz) 3.4-3.6 GHz Plan 1
    (RF+AU+TU+SC+2PSU+5Modems)

      TOTAL CT AS4000 DA MODEM SHELF CARD SETS AND

      AS4020 MODEM SHELVES
--------------------------------------------------------- ------
AC SHELF PLUG-INS

    780-0000 : Ac Basic Shelf card set (Generic E1)         $*        *
    (2PSU+SC+CTU+XTU)

    303-1002-900 : E1 TU card                               $*        *
    303-1009-900 : AC CU card                               $*        *
    805-0010-235 : AC PTU card                              $*        *
      TOTAL AC SHELF PLUG-INS
--------------------------------------------------------- ------
SOFTWARE AND NMS

    870-1000 : A58100/8200 Sitespan Desktop Hardware        $*        *
    Platform (Windows NT PC + Serial port expansion)
    870-2100 : A58100 Sitespan Client / Server software     $*        *
    870-2300 : A58100/8200 Sitespan Shelf License           $*        *
    870-2900 : Annual Maintenance/Upgrade charge for        $*        *
    871-xxxx : V5.x License for 1000 subscribers            $*        *
    872-1000 : STMON for Windows 98 and NT                  $*        *
      TOTAL SOFTWARE AND NMS
--------------------------------------------------------- ------
DOCUMENTATION

    580-2000 : AS4000 DA Documentation (CD-ROM)             $*        *
    580-3000 : AS8100/8200 (Sitespan) Documentation         $*        *
      TOTAL DOCUMENTATION
--------------------------------------------------------- ------
SERVICES (N9, ESTIMATE ONLY.  TRAVEL AND EXPENSES NOT
INCLUDED)
    885-2000 : Installation (per day, excl T&E)             $*        *
    885-1000 : Site Survey (per day, excl T&E)              $*
    885-3000 : Radio Planning (per day, excl T&E)           $*
    885-4000 : Airspan Training (per day at Oxbridge        $*
    885-4001 : Airpsan Training (per day on Customer        $*
    885-4002 : Airspan Training (per day per additional     $*
    885-5000 : Project Management (per manager per day,     $*
      TOTAL SERVICES
--------------------------------------------------------- ------ ---- ------ ----- ------ ------ --------- -------
                                                  TOTALS              $*     $*    $*     $*     $*        $*
--------------------------------------------------------- ------ ---- ------ ----- ------ ------ --------- -------
</TABLE>

<TABLE>
<CAPTION>
<S>                                                                          <C>    <C>
----------------------------------------------------                       ------- --------------------
SUMMARY                                                                            DISCOUNT SCHEDULE
----------------------------------------------------                       ------- --------------------
Infrastructure Total                                                               >10,000 Sts per yr
$*                                                                         ------- --------------------
                                                                                   Subscribers
----------------------------------------------------                       ------- --------------------
-11.00%                                                                    R1                       *
$*                                                                         R2                       *
----------------------------------------------------
Subscriber Total                                                           N4                       *
$*                                                                         B1                       *
----------------------------------------------------
Grand Total                                                                P1V2                     *
$*                                                                         ------- --------------------
----------------------------------------------------                               INFRASTRUCTURE
                                                                           ------- --------------------
Quote ref 2001-33 R11a                                                                              *
14/09/2001                                                                 ------- --------------------
</TABLE>

1.   All prices are quoted CIP Lagos (as per incoterms 2000)
2.   Payment is by LOC or other similar means
3.   Please refer to the quote reference number in any communications with
     Airspan.
4.   Payment 10% with order, 50% 50 days after delivery, 40% 140 days after
     delivery.
5.   Initial Firm Order placed by 15/9/01 for 5 infrastructure sites and 1,700
     STs.
6.   Delivery of infrastructure and 500 STs to freight forwarders by end October
     2001, delivery in country by end November 2001. Balance of STs to be
     delivered by end December 2001.
7.   ACL will provide two site visits in Lagos during the first year FOC.
8.   ACL will provide S70-2300 and 871-xxxx FOC for later stages of
     infrastructure.
9.   ACL will provide 20 working days of ISTAS time for ST installation and
     training FOC
--------------------------------------------------------------------------------

[*] Certain information on this page has been omitted and filed separately with
the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.



In event of a further order being placed for delivery before 15th September
2002 of 6.000 STs or greater, then the unit price reduces for the whole volume
to that shown in the >10,000 STs column. A purchase credit will be applied to
this additional order such that the aggregate unit price of the total quantity
delivered during the year will equal the prices in the >10,000 STs column.

SUPPLY AGREEMENT - PAGE 20