INTERWAVE COMMUNICATIONS INTERNATIONAL LTD
F-1/A, 2000-01-28
RADIO & TV BROADCASTING & COMMUNICATIONS EQUIPMENT
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<PAGE>

    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JANUARY 28, 2000


                                                      REGISTRATION NO. 333-92967
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                           --------------------------


                                AMENDMENT NO. 5
                                       TO
                                    FORM F-1
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933

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

                  INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD.
             (Exact name of Registrant as specified in its charter)

<TABLE>
<S>                                  <C>                                  <C>
              BERMUDA                                3663                            NOT APPLICABLE
  (State or other jurisdiction of        (Primary Standard Industrial               (I.R.S. Employer
   incorporation or organization)        Classification Code Number)             Identification Number)
</TABLE>

                        CLARENDON HOUSE, 2 CHURCH STREET
                                P.O. BOX HM 1022
                            HAMILTON HM DX, BERMUDA
                                 (441) 295-5950
  (Address, including zip code, and telephone number, including area code, of
                   Registrant's principal executive offices)
                         ------------------------------

                                THOMAS W. HUBBS
                         INTERWAVE COMMUNICATIONS, INC.
                        656 BAIR ISLAND ROAD, SUITE 108
                             REDWOOD CITY, CA 94063
                                 (650) 482-2100
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
                         ------------------------------

<TABLE>
<S>                                                <C>
                                    COPIES TO:
       ROBERT JACK, ESQ.                                NORA L. GIBSON, ESQ.
 CHRISTOPHER D. MITCHELL, ESQ.                          PATRICK J. SHEA, ESQ.
      SAMUEL S. NAM, ESQ.                             LINDSAY C. FREEMAN, ESQ.
      JON P. LAYMAN, ESQ.                              JEANINE M. LARREA, ESQ.
          JAMES JENSEN                             BROBECK, PHLEGER & HARRISON LLP
WILSON SONSINI GOODRICH & ROSATI                   ONE MARKET, SPEAR STREET TOWER
    PROFESSIONAL CORPORATION                           SAN FRANCISCO, CA 94105
       650 PAGE MILL ROAD                                  (415) 442-0900
  PALO ALTO, CALIFORNIA 94304
         (650) 493-9300
</TABLE>

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

        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
AS SOON AS PRACTICABLE AFTER THE EFFECTIVE DATE OF THIS REGISTRATION STATEMENT.

    If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act,
please check the following box. / /

    If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. / /

    If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. / /

    If this Form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earliest effective registration statement
for the same offering. / /

    If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. / /
                         ------------------------------

                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>

<S>                                      <C>                  <C>                  <C>                  <C>
                                                               PROPOSED MAXIMUM     PROPOSED MAXIMUM
        TITLE OF EACH CLASS OF              AMOUNT TO BE      OFFERING PRICE PER   AGGREGATE OFFERING        AMOUNT OF
      SECURITIES TO BE REGISTERED            REGISTERED            SHARE(1)             PRICE(1)        REGISTRATION FEE(2)
Common shares, par value $0.001 per
  share................................   9,775,000 shares          $12.00           $117,300,000.00        $30,967.20
</TABLE>

(1) Estimated solely for the purpose of calculating the amount of the
    registration fee in accordance with Rule 457(a) under the Securities Act of
    1933, as amended.


(2) Entire amount previously paid.

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

    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>

                 SUBJECT TO COMPLETION, DATED JANUARY 28, 2000

THE INFORMATION IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED. WE MAY
NOT SELL THESE SECURITIES UNTIL THE REGISTRATION STATEMENT FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS NOT AN OFFER
TO SELL THESE SECURITIES AND IT IS NOT SOLICITING AN OFFER TO BUY THESE
SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED
<PAGE>
PROSPECTUS

                                8,500,000 SHARES

                                     [LOGO]

                                 COMMON SHARES
                                  $  PER SHARE

                                   ---------

    We are selling 8,500,000 common shares. The underwriters named in this
prospectus may purchase up to 1,275,000 additional common shares from us to
cover over-allotments.

    This is an initial public offering of our common shares. We currently expect
the initial public offering price to be between $10.00 and $12.00 per share. We
have applied to have our common shares included for quotation on the Nasdaq
National Market under the symbol "IWAV."

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

    INVESTING IN OUR COMMON SHARES INVOLVES CERTAIN RISKS. SEE "RISK FACTORS"
BEGINNING ON PAGE 8.

    Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved these securities or determined if this
prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.

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

<TABLE>
<CAPTION>
                                                                 PER SHARE           TOTAL
                                                              ----------------  ----------------
<S>                                                           <C>               <C>
Public Offering Price                                         $                 $
Underwriting Discount                                         $                 $
Proceeds to interWAVE (before expenses)                       $                 $
</TABLE>


    The underwriters are offering the shares subject to various conditions. The
underwriters expect to deliver the shares to purchasers on or about
February   , 2000.


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

SALOMON SMITH BARNEY

                 BANC OF AMERICA SECURITIES LLC

                                                                        SG COWEN

           , 2000
<PAGE>
                   [Inside Front Cover and Inside Back Cover]

<TABLE>
<CAPTION>

<S>                           <C>
Top Caption:                  Wireless Applications Enabling Global Communications
Center:                       Diagram of a global map showing where we have live and trial
                              networks deployed. The symbol of a star represents live
                              networks deployed in Australia, Austria, California, Central
                              African Republic, China, Congo, France, Gambia, Greece, Hong
                              Kong, Italy, Japan, Kosovo, North Carolina, New Jersey,
                              Somalia, Taiwan, Tajikistan, Thailand, Washington and the
                              United Kingdom. The symbol of a yellow circle represents
                              trial networks deployed in Australia, California, China,
                              France, Germany, Sri Lanka, South Africa, Taiwan, and the
                              United Kingdom.

Inside Back Cover:
Title:                        interWAVE Provides Full Wireless Network Capabilities within
                              A Single Compact Enclosure
Top Left:                     Diagram of six buildings in a circle linked by a red line.
                              In the center of the circle is the caption "Wireless Office
                              Networks."
Top Right:                    Diagram of a community. Above the diagram is the caption
                              "Community Networks."
Center:                       Picture of our Network In A Box with one arrow pointing to
                              the Wireless Office Networks in the top left corner, another
                              arrow pointing to the Community Networks in the upper right
                              corner, and the last arrow pointing to the bottom caption
                              Public Telephone Network.
Bottom:                       In the bottom center there is a caption entitled "Public
                              Telephone Network."
</TABLE>
<PAGE>
    YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED IN THIS PROSPECTUS. WE
HAVE NOT AUTHORIZED ANYONE TO PROVIDE YOU WITH DIFFERENT INFORMATION. WE ARE NOT
MAKING AN OFFER OF THESE SECURITIES IN ANY STATE WHERE THE OFFER IS NOT
PERMITTED. YOU SHOULD NOT ASSUME THAT THE INFORMATION PROVIDED BY THIS
PROSPECTUS IS ACCURATE AS OF ANY DATE OTHER THAN THE DATE OF THIS PROSPECTUS.

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

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                PAGE
                                                              --------
<S>                                                           <C>
Prospectus Summary..........................................      4
Risk Factors................................................      8
Special Note Regarding Forward Looking Statements...........     19
Use of Proceeds.............................................     20
Dividend Policy.............................................     20
Capitalization..............................................     21
Dilution....................................................     22
Selected Consolidated Financial Data........................     24
Management's Discussion and Analysis of Financial Condition
  and Results of Operations.................................     25
Business....................................................     38
Management..................................................     55
Certain Transactions........................................     66
Principal Shareholders......................................     75
Description of Share Capital................................     79
Certain Bermuda Law Considerations..........................     81
Taxation....................................................     82
Shares Eligible for Future Sale.............................     85
Underwriting................................................     88
Legal Matters...............................................     90
Experts.....................................................     90
Where You Can Find More Information.........................     90
Index to Consolidated Financial Statements..................    F-1
</TABLE>

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

    Until           , 2000, all dealers that buy, sell or trade the common
shares, whether or not participating in this offering, may be required to
deliver a prospectus. This is in addition to the dealers' obligation to deliver
a prospectus when acting as underwriters and with respect to their unsold
allotments or subscriptions.

    Consent under the Exchange Control Act, 1972 (and regulations thereunder)
has been obtained from the Bermuda Monetary Authority for the issue and transfer
of the common shares being offered pursuant to the offering. In addition, a copy
of this document has been delivered to the Registrar of Companies in Bermuda for
filing pursuant to the Companies Act, 1981 of Bermuda. In giving such consent
and in accepting this prospectus for filing, the Bermuda Monetary Authority and
the Registrar of Companies in Bermuda, respectively, accept no responsibility
for the financial soundness of any proposal or for the correctness of any of the
statements made or opinions expressed herein.

                                       3
<PAGE>
                               PROSPECTUS SUMMARY

    THIS SUMMARY HIGHLIGHTS INFORMATION CONTAINED ELSEWHERE IN THIS PROSPECTUS.
SINCE THIS IS ONLY A SUMMARY, IT DOES NOT CONTAIN ALL OF THE INFORMATION THAT
MAY BE IMPORTANT TO YOU. YOU SHOULD READ THE ENTIRE PROSPECTUS CAREFULLY AND
CONSIDER THE INFORMATION UNDER "RISK FACTORS" AND IN OUR FINANCIAL STATEMENTS
AND THE NOTES RELATING TO THESE FINANCIAL STATEMENTS, TOGETHER WITH THE
INFORMATION INCLUDED ELSEWHERE IN THIS PROSPECTUS, BEFORE DECIDING WHETHER TO
INVEST IN OUR COMMON SHARES. OUR FISCAL YEAR ENDS ON THE FRIDAY NEAREST
JUNE 30. EXCEPT WHERE OTHERWISE NOTED, THE INFORMATION IN THIS PROSPECTUS IS
BASED UPON INFORMATION AS OF JANUARY 18, 2000.

                                  OUR COMPANY

    We provide compact wireless communications systems using GSM, an
international standard for voice and data communications. We have pioneered what
we believe is the only commercially available system that provides all of the
infrastructure equipment and software necessary to support an entire wireless
network within a single, compact enclosure. We have designed our systems to
serve the following applications in a cost-effective manner:

    - WIRELESS OFFICES. Our systems allow wireless users in organizations such
      as large corporations, government entities and universities to maintain
      contact with the organization's private telephone network whether the
      users are in their offices, out of their offices or moving between
      locations.

    - COMMUNITY NETWORKS. Our systems enable wireless service providers to add
      capacity in heavy usage areas and to provide telephone service in
      previously unserved communities.

    Our core product, WAVEXpress, delivers a comprehensive set of wireless
network capabilities which are based on the GSM standard. WAVEXpress systems can
serve as:

    - a base station to receive and transmit voice and data signals over radio
      frequencies;

    - a switch to route voice and data signals to their correct destinations;

    - a base station controller to manage voice and data signals between the
      base station and the switch; or

    - any combination of these functions depending on our system's hardware and
      software configuration.

    Our all-in-one solution, the Network In A Box, provides the capabilities of
a complete wireless network in an enclosure approximately the size of a personal
computer tower.

    We market and sell our systems around the world utilizing a three-pronged
sales strategy which includes selling to communications equipment providers, to
systems integrators which integrate our systems with the products of other
companies and through our own direct sales force. Since 1997 we have sold over
1,000 units which have been installed in 17 countries worldwide. We have
established a strategic alliance with Nortel Networks, which accounted for 51%
of our revenues in 1999 and which, assuming the exercise of all warrants, owns
approximately 22.4% of our outstanding shares.

    Despite our successes, we face many challenges and risks. For example, we
did not record any revenue from our first product sale until 1997 and we have
not achieved, and we may never achieve, profitability. In fact, we expect to
incur net losses in the future and these losses may be substantial. Accordingly,
you should carefully consider the information set forth in the "Risk Factors"
section of this prospectus.

                                       4
<PAGE>
                                  OUR STRATEGY

    Our goal is to be the premier global provider of cost-effective, compact
wireless systems in targeted segments of the GSM market. As key elements of our
strategy, we intend to:

    - Provide wireless office systems that will replace traditional office
      telephone equipment with wireless equipment

    - Deliver wireless systems using the Internet Protocol, which is the
      networking standard used to deliver voice and data over the Internet

    - Further penetrate existing market opportunities

    - Strengthen and expand relationships with communications equipment
      providers

    - Use technological leadership to provide competitive advantages for
      wireless service providers

                             CORPORATE INFORMATION

    We were incorporated in Bermuda on June 17, 1994. Our principal executive
office is located at Clarendon House, 2 Church Street, P.O. Box HM 1022,
Hamilton HM DX, Bermuda, and our telephone number is (441) 295-5950. Our
principal operating offices are located at 656 Bair Island Road, Redwood City,
California 94063, and our telephone number is (650) 482-2100. Our World Wide Web
address is www.iwv.com. Information on our web site does not constitute part of
this prospectus.

                                       5
<PAGE>
                                  THE OFFERING

<TABLE>
<S>                                            <C>
Common shares offered........................  8,500,000 shares

Common shares to be outstanding after
  the offering...............................  44,370,878 shares

Use of proceeds..............................  To increase working capital, to fund both
                                               capital investment and research and
                                               development and for general corporate
                                               purposes. See "Use of Proceeds."

Proposed Nasdaq National Market Symbol.......  IWAV
</TABLE>

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

    Unless otherwise indicated, all information in this prospectus, including
the outstanding share information above is based on the number of shares
outstanding as of January 18, 2000 and:

    - gives effect to the exercise of a warrant for 2,000,000 preferred shares
      and 188,410 common shares that the warrant holders have committed to
      exercise on the effectiveness of this offering at exercise prices ranging
      from $0.70 to $7.00 per share;

    - gives effect to the conversion of all outstanding preferred shares into
      29,006,193 common shares immediately prior to the completion of the
      offering;

    - excludes 7,286,594 common shares issuable upon exercise of warrants
      outstanding at January 18, 2000 at an exercise price ranging from $0.70 to
      $1.15 per share;


    - excludes 5,308,295 common shares issuable upon the exercise of options
      outstanding at January 18, 2000 at a weighted average exercise price of
      $1.89 per share;


    - excludes 1,818,867 common shares available for issuance under our 1999
      option plan;

    - excludes 300,000 common shares available for issuance under our 1999
      employee share purchase plan; and

    - assumes no exercise of the underwriters' over-allotment option.

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

    All dollar amounts in this prospectus are expressed in U.S. dollars, except
where we state otherwise.

                                       6
<PAGE>
                         SUMMARY FINANCIAL INFORMATION

    The following table sets forth our summary financial data. You should read
this information together with our consolidated financial statements, the notes
to those statements beginning on page F-1 of this prospectus, the information
under "Selected Financial Data," "Capitalization" and "Management's Discussion
and Analysis of Financial Condition and Results of Operations."

    The pro forma numbers in the table give effect to:

    - proceeds from the sale of 3,526,663 Series I1 preferred shares which
      closed in November and December 1999;

    - the issuance of 602,256 common shares upon exercise of options under our
      1994 stock plan between September 30, 1999 and January 18, 2000;

    - the exercise of a warrant for 2,000,000 preferred shares and 188,410
      common shares that the warrant holders have committed to exercise on the
      effectiveness of this offering at exercise prices ranging from $0.70 to
      $7.00 per share; and

    - the conversion of all outstanding preferred shares into 29,006,193 common
      shares immediately prior to the completion of the offering.

    The capitalization on a pro forma as adjusted basis reflects the sale of
8,500,000 common shares offered by us at an assumed initial public offering
price of $11.00 per share after deducting the underwriting discount and
estimated offering expenses payable by us, and the receipt of net proceeds from
this offering.

    Our consolidated financial statements were prepared in accordance with
generally accepted accounting principles in the United States. All dollar
amounts set forth below are stated in U.S. dollars. Our fiscal year ends on the
Friday nearest June 30, and our first fiscal quarter ends on the Friday nearest
September 30.

<TABLE>
<CAPTION>
                                                                                       THREE MONTHS
                                                                                           ENDED
                                                     FISCAL YEAR ENDED JUNE 30,        SEPTEMBER 30,
                                                   ------------------------------   -------------------
                                                     1997       1998       1999       1998       1999
                                                   --------   --------   --------   --------   --------
                                                          (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                                <C>        <C>        <C>        <C>        <C>
STATEMENT OF OPERATIONS DATA:
  Net revenues..................................   $  1,841   $ 12,995   $ 17,293   $ 4,487    $ 5,377
  Gross profit..................................     (1,776)       744      4,762     2,010      1,404
  Loss from operations..........................    (29,245)   (29,902)   (22,106)   (5,144)    (7,570)
  Net loss......................................   $(29,182)  $(30,822)  $(24,468)  $(5,091)   $(9,470)
  Net loss attributable to common
    shareholders................................   $(29,182)  $(30,822)  $(24,468)  $(5,091)   $(11,525)
                                                   ========   ========   ========   =======    =======
  Loss per share, basic and diluted.............   $  (7.12)  $  (6.68)  $  (4.96)  $ (1.05)   $ (2.10)
                                                   ========   ========   ========   =======    =======
  Weighted average common shares outstanding....      4,099      4,614      4,934     4,840      5,480
  Pro forma net loss per share, basic and
    diluted.....................................                         $  (0.76)             $ (0.36)
                                                                         ========              =======
  Shares used in computing pro forma net loss
    per share, basic and diluted................                           32,345               32,345
</TABLE>

<TABLE>
<CAPTION>
                                                                   AS OF SEPTEMBER 30, 1999
                                                              ----------------------------------
                                                                                      PRO FORMA
                                                               ACTUAL    PRO FORMA   AS ADJUSTED
                                                              --------   ---------   -----------
                                                                        (IN THOUSANDS)
<S>                                                           <C>        <C>         <C>
BALANCE SHEET DATA:
  Cash and cash equivalents.................................  $12,988     $56,327      $141,932
  Working capital...........................................   17,739      61,076       146,683
  Total assets..............................................   35,080      78,419       164,024
  Long term debt, net of current portion....................      261         261           261
  Total shareholders' equity................................   25,568      68,907       154,512
</TABLE>

                                       7
<PAGE>
                                  RISK FACTORS

    INVESTING IN OUR COMMON SHARES INVOLVES A HIGH DEGREE OF RISK. IF ANY OF THE
FOLLOWING RISKS OCCUR, THE MARKET PRICE OF OUR COMMON SHARES COULD DECLINE AND
YOU COULD LOSE ALL OR PART OF YOUR INVESTMENT.

BECAUSE WE HAVE A LIMITED OPERATING HISTORY, WE CANNOT BE SURE THAT WE CAN
SUCCESSFULLY EXECUTE OUR BUSINESS STRATEGY

    We did not record revenue from our first product sale until May 1997. We
have a limited history of generating significant revenues. Many of our products
have only recently been introduced and many of our customers are testing our
products for incorporation into live networks. Therefore, you have limited
historical financial data and operating results with which to evaluate our
business and our prospects. You must consider our prospects in light of the
early stage of our business in a new and rapidly evolving market. Our limited
operating history may make it difficult for you to assess, based on historical
information, whether we can successfully execute our business strategy. If we
are unable to successfully execute our business strategy, we would likely not
achieve anticipated levels of revenue growth. In this event, we would be unable
to achieve profitability or build a sustainable business.

WE HAVE A HISTORY OF LOSSES, EXPECT FUTURE LOSSES AND MAY NEVER ACHIEVE OR
SUSTAIN PROFITABILITY

    As of September 30, 1999, we had an accumulated deficit of $121.2 million.
We incurred net losses of approximately $29.2 million, $30.8 million,
$24.5 million and $9.5 million in the fiscal years ended June 30, 1997, 1998 and
1999 and the three months ended September 30, 1999, respectively. We expect to
continue to incur net losses and these losses may be substantial. Furthermore,
we expect to generate significant negative cash flow in the future. We will need
to generate substantially higher revenues to achieve and sustain profitability
and positive cash flow. Our ability to generate future revenues and achieve
profitability will depend on a number of factors, many of which are beyond our
control. These factors include:

    - the rate of market acceptance of compact mobile wireless systems;

    - our ability to compete successfully against much larger GSM communications
      equipment providers; and

    - our ability to continue to expand our customer base.

Due to these factors, as well as other factors described in this risk factors
section, we may be unable to achieve or maintain profitability. If we are unable
to achieve or maintain profitability, we will be unable to build a sustainable
business. In this event, our share price and the value of your investment would
likely decline.

OUR QUARTERLY OPERATING RESULTS ARE LIKELY TO FLUCTUATE SIGNIFICANTLY AND MAY
FAIL TO MEET THE EXPECTATIONS OF SECURITIES ANALYSTS AND INVESTORS, WHICH MAY
CAUSE OUR SHARE PRICE TO DECLINE

    Our quarterly operating results have fluctuated significantly in the past
and are likely to do so in the future. If our operating results do not meet the
expectations of securities analysts and investors, our share price is likely to
decline. The many factors that could cause our quarterly results to fluctuate
include:

    - any delay in our introduction of new products or product enhancements;

    - the size and timing of customer orders and our product shipments, which
      have typically consisted of a relatively small number of units of wireless
      network systems at the end of each quarter;

    - the mix of products sold because our various products generate different
      gross margins;

                                       8
<PAGE>
    - any delay in shipments caused by component shortages or other
      manufacturing problems, extended product testing or regulatory issues;

    - the timing of orders from and shipments to major customers, including
      possible cancellation of orders and failure of major customers to meet
      applicable minimum purchase commitments;

    - the loss of a major customer;

    - reductions in the selling prices of our products;

    - cost pressures from shortages of skilled technical employees, increased
      product development and engineering expenditures and other factors; and

    - customer responses to announcements of new products and product
      enhancements by competitors and the entry of new competitors into our
      market.

Due to these and other factors, our results of operations could fluctuate
substantially in the future, and quarterly comparisons may not be reliable
indicators of future performance. In addition, because many of our expenses for
personnel, facilities and equipment are relatively fixed in nature, if revenues
fail to meet our expectations, we may not be able to reduce expenses
correspondingly. As a result, we would experience greater than expected net
losses. If we experience greater than expected net losses, our share price and
the value of your investment would likely decline.

WE RELY ON A SMALL NUMBER OF CUSTOMERS FOR MOST OF OUR REVENUES, AND A DECREASE
IN REVENUES FROM THESE CUSTOMERS COULD SERIOUSLY HARM OUR BUSINESS

    A small number of customers have accounted for a significant portion of our
revenues to date. Net revenues from significant customers as a percentage of our
total net revenues in the two most recent fiscal years and the three months
ended September 30, 1999 were as follows:

<TABLE>
<CAPTION>
                                                          FISCAL YEAR          THREE MONTHS
                                                             ENDED                ENDED
                                                            JUNE 30,          SEPTEMBER 30,
                                                     ----------------------   --------------
                                                       1998          1999          1999
                                                     --------      --------   --------------
<S>                                                  <C>           <C>        <C>
Nortel Networks....................................     18%           51%           18%
ADC Telecommunications/Microcellular Systems,
  Ltd..............................................     47            20            21
Hutchison Telecommunications Group.................     21             8             5
HangZhou Topper Electric Corporation...............     --             2            38
</TABLE>

    Nortel Networks is one of our principal shareholders, and a Nortel Networks
employee is a member of our board of directors. ADC Telecommunications and
Hutchison Whampoa, the parent of Hutchison Telecommunications Group, through a
wholly-owned subsidiary, are shareholders of ours. Microcellular Systems, Ltd.
was created by a spin-off from ADC Telecommunications in May 1999.

    We expect that the majority of our revenues will continue to depend on sales
to a small number of customers. If any key customers experience a downturn in
their business or shift their purchases to our competitors, our revenues and
operating results would decline.

    We expect that for the foreseeable future a significant portion of our net
revenues will be derived from sales to Nortel Networks and Alcatel. If our
revenues, including those expected from Nortel Networks and Alcatel under our
purchase and distribution agreements, are lower than expected, we may not be
able to quickly reduce expenses because many of our expenses are fixed in the
near term.

                                       9
<PAGE>

WE HAVE MINIMUM PURCHASE COMMITMENTS FROM NORTEL NETWORKS AND ALCATEL, AND IF
THEY FAIL TO MEET THESE COMMITMENTS, THIS FAILURE COULD HARM OUR BUSINESS AND
OPERATING RESULTS



    Nortel Networks and Alcatel have minimum purchase commitments under their
respective agreements. We rely in part on these commitments in forecasting
production quantities each quarter. We have also committed to Nortel Networks
and Alcatel that we will maintain quality, delivery, performance and design
standards for our systems. As a result, we bear the risk of carrying excess
inventory if Nortel Networks and Alcatel fail to meet their commitments or if we
fail to meet ours. From time to time, we have failed to deliver certain product
features by specific milestone dates and, as a result, we have renegotiated
downward minimum quarterly commitments with Nortel Networks. Nortel Networks did
not meet the renegotiated commitments for the quarter ended September 30, 1999.
We cannot assure you that these minimum commitments will be met or that they
will not be renegotiated downward in the future. Failure of Nortel Networks or
Alcatel to meet minimum purchase commitments could cause our revenues and
operating results to decline. Furthermore, because Nortel Networks' commitments
are larger than Alcatel's, Nortel Networks' failure to meet commitments would
harm our operating results to a greater extent than Alcatel's failure to do so.
Failure of these companies to meet these commitments could also cause our stock
price to decline as a result of a revenue shortfall or greater than anticipated
operating losses.


WE CURRENTLY DEPEND ON TWO CONTRACT MANUFACTURERS FOR MOST OF OUR PRODUCTS AND
PLAN TO USE ONLY A SINGLE CONTRACT MANUFACTURER IN THE FUTURE AND THIS
TRANSITION COULD CAUSE DISRUPTIONS IN OUR BUSINESS

    We depend on two contract manufacturers for most of our products. We do not
have long-term supply contracts with our contract manufacturers, and they are
not obligated to supply us with products for any specific period, in any
specific quantity or at any specific price, except as may be provided in a
particular purchase order. None of our products are manufactured by more than
one supplier, and we do not expect this to change for the foreseeable future.

    We plan to consolidate the manufacture of our products with one of our
existing contract manufacturers, PEMSTAR, Inc., by the middle of calendar year
2000. We may lose revenue and damage our customer relationships if we do not
manage this consolidation effectively.

    There are risks associated with our dependence on contract manufacturers,
including the contract manufacturer's control of capacity allocation, labor
relations, production quality and other aspects of the manufacturing process. If
we are unable to obtain our products from manufacturers on schedule, revenues
from the sale of those products may be delayed or lost, and our reputation,
relationship with customers and our business could be harmed. In addition, in
the event that a contract manufacturer must be replaced, the disruption to our
business and the expense associated with obtaining and qualifying a new contract
manufacturer could be substantial. If problems with our contract manufacturers
cause us to miss customer delivery schedules or result in unforeseen product
quality problems, we may lose customers. As a result, our revenues and our
future growth prospects would likely decline.

BECAUSE SOME OF OUR KEY COMPONENTS COME FROM A SINGLE SOURCE, OR REQUIRE LONG
LEAD TIMES, WE COULD EXPERIENCE UNEXPECTED INTERRUPTIONS WHICH COULD CAUSE OUR
OPERATING RESULTS TO SUFFER

    We believe that a number of our suppliers are sole sources for key
components. These key components are complex and difficult to manufacture and
require long lead times. In the event of a reduction or interruption of supply,
or a degradation in quality, as many as six months could be required before we
would begin receiving adequate supplies from other suppliers. Supply
interruptions could delay product shipments, causing our revenues and operating
results to decline.

                                       10
<PAGE>
WE DO NOT TYPICALLY HAVE A SALES BACKLOG AND THEREFORE MAY INCUR EXPENSES FOR
EXCESS INVENTORY OR BE UNABLE TO MEET CUSTOMER REQUIREMENTS

    We do not have a significant backlog because our customers typically give us
firm purchase orders with short lead times before requested shipment. However,
our contract manufacturers require commitments from us so that they can allocate
capacity and be assured of having adequate components and supplies from third
parties. Failure by us to accurately estimate product demand could cause us to
incur expenses related to excess inventory or prohibit us from meeting customer
requirements.

OUR PRODUCTS ARE COMPLEX AND MAY HAVE ERRORS OR DEFECTS THAT ARE DETECTED ONLY
AFTER DEPLOYMENT IN COMPLEX NETWORKS, WHICH MAY HARM OUR BUSINESS

    Our products are highly complex and are designed to be deployed in complex
networks. Although our products are tested during manufacturing and prior to
deployment, they can only be fully tested when deployed in networks with
high-call volume. Consequently, our customers may discover errors after the
products have been fully deployed. If we are unable to fix errors or other
problems that may be identified in full deployment, we could experience:

    - costs associated with the remediation of any problems;

    - loss of or delay in revenues;

    - loss of customers;

    - failure to achieve market acceptance and loss of market share;

    - diversion of deployment resources;

    - increased service and warranty costs;

    - legal actions by our customers; and

    - increased insurance costs.

    In addition, our products often are integrated with other network
components. There may be incompatibilities between these components and our
products that could significantly harm the service provider or its subscribers.
Product problems in the field could require us to incur costs to remedy the
problems and subject us to liability for damages caused by the problems. These
problems could also harm our reputation and competitive position in the
industry.

WE MAY EXPERIENCE DIFFICULTIES IN THE INTRODUCTION OF NEW OR ENHANCED PRODUCTS
THAT COULD RESULT IN SIGNIFICANT, UNEXPECTED EXPENSES OR DELAY THEIR LAUNCH,
WHICH WOULD HARM OUR BUSINESS

    The development of new or enhanced products is a complex and uncertain
process. We may experience design, manufacturing, marketing and other
difficulties that could delay or prevent our development, introduction or
marketing of new products or product enhancements. We must also effectively
manage the transition from old products to new or enhanced products. In
particular, we are currently developing a system providing voice communication
over the Internet for commercial release in fiscal year 2000. We cannot assure
you that we will be able to develop, introduce or manage this or any other new
products or product enhancements in a timely manner or at all. Failure to
develop new products or product enhancements in a timely manner would
substantially decrease market acceptance and sales of our products.

                                       11
<PAGE>
FAILURE TO COMPLY WITH REGULATIONS AFFECTING THE TELECOMMUNICATIONS INDUSTRY
COULD SERIOUSLY HARM OUR BUSINESS AND RESULTS OF OPERATIONS

    Our failure to comply with government regulations relating to the
telecommunications industry in countries where our products are deployed and
failure to comply with any changes to those regulations could seriously harm our
business and results of operations. We have not completed all activities
necessary to comply with existing regulations and requirements in some of the
countries in which we intend to sell our products. Compliance with the
regulations of numerous countries could be costly and require delays in
deployments.

OUR FAILURE TO COMPLY WITH EVOLVING INDUSTRY STANDARDS COULD DELAY OUR
INTRODUCTION OF NEW PRODUCTS

    An international consortium of standards bodies is working to establish the
specifications of a future wireless standard and its interoperability with
existing standards. Any failure of our products to comply could delay their
introduction and require costly and time consuming engineering changes. After
the future standard is adopted, any delays in our introduction of next
generation products could impair our ability to grow revenues in the future. As
a result, we may be unable to achieve or sustain profitability.

OUR MARKET OPPORTUNITY COULD BE SIGNIFICANTLY DIMINISHED IN THE EVENT THAT GSM
OR ANY SUBSEQUENT GSM-BASED STANDARDS DO NOT CONTINUE TO BE OR ARE NOT WIDELY
ADOPTED

    Our products are designed to utilize only GSM, an international standard for
voice and data communications. There are other competing standards including
code division multiple access, or CDMA, and time division mutiple access, or
TDMA. We currently do not have plans to offer products that utilize these
standards. In the event that GSM or any GSM-based standards do not continue to
be or are not broadly adopted, our market opportunity could be significantly
limited, which would seriously harm our business.

WE HAVE A LONG SALES CYCLE, WHICH COULD CONTRIBUTE TO FLUCTUATIONS IN OUR
RESULTS OF OPERATIONS AND SHARE PRICE

    Our sales cycle is typically long and unpredictable, making it difficult to
plan our business. The long sales cycle also requires us to invest resources in
a possible transaction that may not be recovered if we do not successfully
conclude the transaction. Factors that affect the length of our sales cycle
include:

    - time required for testing and evaluation of our products before they are
      deployed in a network;

    - size of the deployment;

    - complexity of the customer's network environment; and

    - the degree of system configuration necessary to deploy our products.

    In addition, the emerging and evolving nature of the market for the systems
we sell may lead prospective customers to postpone their purchasing decisions.
General concerns regarding year 2000 compliance may further delay purchase
decisions by prospective customers. Our long and unpredictable sales cycle can
result in delayed revenues, difficulty in matching revenues with expenses and
increased expenditures, which together may contribute to declines in our results
of operations and our share price.

                                       12
<PAGE>
INTENSE COMPETITION IN THE WIRELESS MARKET COULD PREVENT US FROM INCREASING OR
SUSTAINING REVENUES OR ACHIEVING OR SUSTAINING PROFITABILITY

    The wireless market is rapidly evolving and highly competitive. We cannot
assure you that we will have the financial resources, technical expertise or
marketing, manufacturing, distribution and support capabilities to compete
successfully in the future. We expect that competition in each of our markets
will increase in the future.

    In the wireless office network market, the primary competing standard for
our systems is the digital European cordless telephone standard known as DECT.
In the community network market, we compete against wireless local loop
networks, which are wireless communication systems that connect users to the
public telephone network using radio signals as a substitute for traditional
telephone connections.


    We currently compete against communications equipment providers such as
Ericsson, Lucent, Motorola, Nokia and Siemens in the GSM, CDMA, TDMA, DECT and
wireless local loop markets. We also compete with our customers Alcatel and
Nortel Networks. All of the major communications equipment providers have broad
product lines that include at least partial solutions that address our target
markets.


    In addition, we are seeking to sell our products in emerging markets, many
of which have less reliable traditional telephone infrastructures than developed
countries. If these countries improve the reliability and service of their
traditional telephone networks, the demand for our products in these markets
could be harmed and our future revenue growth could decline.

    Many of our competitors and potential competitors have substantially greater
name recognition and technical, financial and sales and marketing resources than
we have. Such competitors may undertake more extensive marketing campaigns,
adopt more aggressive pricing policies and devote substantially more resources
to developing new products than we can. Trends toward increased consolidation in
the telecommunications industry may increase the size and resources of some of
our current competitors and could affect some of our current relationships.

    Increased competition is likely to result in price reductions, shorter
product life cycles, reduced gross margins, longer sales cycles and loss of
market share, any of which would seriously harm our business. We cannot assure
you that we will be able to compete successfully against current or future
competitors. Competitive pressures we face may cause our revenues or growth to
decline and may therefore seriously harm our business and results of operations.

IF WE ARE UNABLE TO MANAGE OUR GLOBAL OPERATIONS EFFECTIVELY, OUR BUSINESS WOULD
BE SERIOUSLY HARMED

    Substantially all of our revenue to date has been derived from systems
intended for installation outside of the United States. In addition to the
regulatory issues discussed previously, our operations are subject to the
following risks and uncertainties:

    - legal uncertainties regarding liability, tariffs and other trade barriers;

    - greater difficulty in accounts receivable collection and longer collection
      periods;

    - costs of staffing and managing operations in several countries;

    - difficulties in protecting intellectual property rights;

    - changes in currency exchange rates which may make our U.S.
      dollar-denominated products less competitive in global markets;

    - the impact of recessions in global economies; and

    - political and economic instability.

                                       13
<PAGE>
    We expect to establish manufacturing operations in China during calendar
year 2000 which may subject us to all of the risks listed above, particularly
the difficulty of protecting intellectual property rights.

WE HAVE EXPERIENCED AN INCREASE IN SALES TO COMPANIES IN THE PEOPLES REPUBLIC OF
CHINA, AND FUTURE SALES IN CHINA WILL BE SUBJECT TO ECONOMIC AND POLITICAL RISKS

    In the three months ended September 30, 1999, sales to HangZhou Topper
Electric, which is located in the Peoples Republic of China, accounted for 38%
of our revenues. China may represent a significant future market opportunity for
interWAVE due to its economic growth and the relative inadequacy of its
traditional telephone network. Sales in China pose significant additional risks,
which include:

    - potential inability to enforce contracts or take other legal action,
      including actions to protect intellectual property rights;

    - difficulty in collecting revenues and risks related to fluctuations in
      currency exchange rates, particularly when sales are denominated in the
      local currency rather than in U.S. dollars;

    - changes in U.S. foreign trade policy towards China which may restrict our
      ability to export products to or make sales in China, and similar changes
      in China's policy regarding the U.S.; and

    - changes in government regulation affecting companies doing business in
      China, either through export sales or local manufacturing operations.

    In the event our revenue levels from sales to China increase, we will become
increasingly subject to these risks. The occurrence of any of these risks would
harm our revenues from China and could in turn cause our revenues or growth to
decline and harm our business and results of operations.

IF WE FAIL TO IMPROVE OUR OPERATIONAL SYSTEMS AND CONTROLS TO MANAGE FUTURE
GROWTH, OUR BUSINESS COULD BE SERIOUSLY HARMED

    We plan to continue to expand our operations significantly to pursue
existing and potential market opportunities. This growth places significant
demands on our management and our operational resources. In order to manage
growth effectively, we must implement and improve our operational systems,
procedures and controls on a timely basis. In addition, we expect that we will
need to expand our principal U.S. facilities in the next six to 12 months and
may be required to move our offices to a different location. A move could be
disruptive to our operations and could delay production or development
activities.

IF WE ARE UNABLE TO HIRE OR RETAIN KEY PERSONNEL, WE MIGHT NOT BE ABLE TO
OPERATE OUR BUSINESS SUCCESSFULLY

    Our business is highly dependent on our ability to attract, retain and
motivate qualified technical and management personnel. Competition is intense
for qualified personnel in our industry and in Northern California, where most
of our engineering personnel are located, and we may not be successful in
attracting and retaining these personnel. We do not have non-compete agreements
with any of our key employees. We currently do not maintain key person life
insurance on any of our key executives. Our success also depends upon the
continuing contributions of our key management and our research, product
development, sales and marketing and manufacturing personnel. Many of these
would be difficult to replace, in particular Dr. Priscilla Lu, our Chief
Executive Officer and Chairman of the Board, Ian Sugarbroad, our President and
Chief Operating Officer and Thomas Hubbs, our Executive Vice President and Chief
Financial Officer.

                                       14
<PAGE>
OUR INTELLECTUAL PROPERTY AND PROPRIETARY RIGHTS MAY BE INSUFFICIENT TO PROTECT
OUR COMPETITIVE POSITION

    We cannot assure you that the protection offered by our U.S. patents will be
sufficient or that any of our pending U.S. or foreign patent applications will
result in the issuance of patents. In addition, competitors in the United States
and other countries, many of whom have substantially greater resources, may
apply for and obtain patents that will prevent or interfere with our ability to
make and sell our products in the U.S. and/or abroad. Unauthorized parties may
attempt to design around our patents, copy or otherwise obtain and use our
products. We cannot be certain that the steps we have taken will prevent
unauthorized use of our technology, particularly in countries where the laws may
not protect our proprietary rights as fully as in the United States. Failure to
protect our proprietary rights could harm our competitive position and therefore
cause our revenues and operating results to decline.

    On June 28, 1999, we filed a complaint against JetCell Corporation in the
United States District Court for the Northern District of California alleging
misappropriation of trade secrets and patent infringement. JetCell has filed a
series of counterclaims against us, which include allegations of unfair trade
practices, unfair competition, defamation, patent misuse and patent invalidity.
We are unable to predict the outcome of this litigation and do not expect it to
be resolved in the near future. The legal proceedings may be distracting to our
management and expensive and the outcome could be adverse to us. If the outcome
is adverse to us, we could experience more competition or could be required to
license our technology, either of which could harm our business and financial
results. See "Legal Proceedings."

CLAIMS THAT WE INFRINGE THIRD-PARTY INTELLECTUAL PROPERTY RIGHTS COULD RESULT IN
SIGNIFICANT EXPENSES AND RESTRICTIONS ON OUR ABILITY TO SELL OUR PRODUCTS IN
PARTICULAR MARKETS

    From time to time, third parties may assert patent, copyright, trademark and
other intellectual property rights to technologies that are important to our
business. Any claims could result in costly litigation, divert the efforts of
our technical and management personnel, cause product shipment delays, require
us to enter into royalty or licensing agreements or prevent us from making or
selling certain products. Any of these could seriously harm our operating
results. Royalty or licensing agreements, if available, may not be available on
commercially reasonable terms, if at all. In addition, in some of our sales
agreements, we agree to indemnify our customers for any expenses or liabilities
resulting from claimed infringements of patents, trademarks or copyrights of
third parties. Costs associated with these indemnification obligations could be
significant and could cause our operating results and stock price to decline.

WE MAY NOT BE ABLE TO LICENSE NECESSARY THIRD-PARTY TECHNOLOGY OR IT MAY BE
EXPENSIVE TO DO SO

    From time to time, we may be required to license technology from third
parties to develop new products or product enhancements. We have licensed
software for use in our products from Lucent Technologies, TCSI Inc., Trillium
Digital Systems Inc., and Wind River Associates. We cannot assure you that
third-party licenses will be available to us on commercially reasonable terms,
if at all. The inability to obtain any third-party license required to develop
new products and product enhancements could require us to obtain substitute
technology of lower quality or performance standards or at greater cost which
could seriously harm our competitive position, revenues and growth prospects.

    There are a number of general GSM patents held by different companies which
may impact our technology. If any of our products infringe on any of these
patents and we are unable to negotiate license agreements, then we may be
required to redesign a portion of our product line.

                                       15
<PAGE>
WE MAY BE UNABLE TO MEET OUR FUTURE CAPITAL REQUIREMENTS WHICH WOULD LIMIT OUR
ABILITY TO GROW AND COMPETE EFFECTIVELY, RESULTING IN SUBSTANTIAL HARM TO OUR
BUSINESS AND RESULTS OF OPERATIONS

    We may require additional funding, which may not be available on terms which
are favorable to us. Currently, we do not have a credit facility or any lines of
credit. If we issue equity securities, existing shareholders may experience
dilution or the new equity securities may have rights, preferences and
privileges senior to those of existing shareholders. If additional funds are
raised through the issuance of debt securities, such securities would have
rights, preferences and privileges senior to holders of common shares. If we
cannot raise funds on terms favorable to us, we may not be able to develop or
enhance our products, take advantage of future opportunities or respond to
competitive pressures or unanticipated requirements. See "Use of Proceeds,"
"Dilution" and "Management's Discussion and Analysis of Financial Condition and
Results of Operations--Liquidity and Capital Resources" for more information on
our capital requirements.

IF WE, OUR SUPPLIERS OR OUR CUSTOMERS FAIL TO BE YEAR 2000 COMPLIANT, OUR
BUSINESS COULD BE SEVERELY DISRUPTED

    The risk that software or hardware may inaccurately process dates beginning
in the year 2000 and beyond presents several potential problems for our
business. In particular, we are subject to the following:

    - costs associated with the failure of our products to be year 2000
      compliant, including potential warranty or other claims from our
      customers, which may result in significant expenses to us;

    - shutdowns or slowdowns of our business as a result of a failure of our
      internal management systems, which could disrupt our business operations;

    - interruption of product or component supplies or a reduction in product
      quality as a result of the failure of systems used by our contract
      manufacturers or suppliers; and

    - reductions or deferrals in sales activities as a result of year 2000
      compliance problems of our customers.

    Our products may contain undetected errors or defects associated with year
2000 date functions. Known or unknown errors or defects in our products could
result in delay or loss of revenue, diversion of development resources, damage
to our reputation, product liability claims or increased service and warranty
costs, any of which could significantly harm our business and operating results.
Some industry analysts have predicted significant litigation regarding year 2000
compliance issues. It is uncertain whether or to what extent we may be affected
by any litigation.

    If we, our contract manufacturers, suppliers or customers fail to identify
and correct any year 2000 problems or unanticipated or unremedied year 2000
problems arise, these failures or problems could result in an interruption in or
a failure of our normal business activities and operations. If a year 2000
problem related to a contract manufacturer or supplier occurs, it may be
difficult to determine which suppliers' products have caused the problem. These
failures could interrupt our operations and damage our relationships with our
customers. Due to the general uncertainty inherent in the year 2000 problem, we
are unable to determine at this time whether any external year 2000 failures
will harm us.

    Any failure by us, our contract manufacturers or any of our suppliers to be
year 2000 compliant could seriously interrupt our manufacturing process, thereby
substantially reducing our revenues.

    We believe our year 2000 worst case scenario would be the failure of a sole
or limited source supplier to be year 2000 compliant. Our failure or the failure
of one of these suppliers to be year 2000 compliant could seriously interrupt
our manufacturing process, thereby substantially reducing our revenues. To date,
we have not experienced any material disruption in our operations as a result of
year 2000 problems, nor have we incurred any unplanned expenses to address year
2000 concerns.

                                       16
<PAGE>
CONTROL BY OUR EXISTING SHAREHOLDERS COULD DISCOURAGE THE POTENTIAL ACQUISITION
OF OUR BUSINESS


    Upon completion of this offering, our executive officers, directors and 5%
or greater shareholders and their affiliates will own 30,995,541 shares or
approximately 69.9% of our outstanding common shares assuming the exercise of
all warrants and options held by them. Acting together, these shareholders would
be able to control all matters requiring approval by shareholders, including the
election of directors. This concentration of ownership could have the effect of
delaying or preventing a change in control of our business or otherwise
discouraging a potential acquirer from attempting to obtain control of us, which
could prevent our shareholders from realizing a premium over the market price
for their common shares.


OUR BYE-LAWS MAY DISCOURAGE POTENTIAL ACQUISITIONS OF OUR BUSINESS

    Some of our bye-laws and Bermuda law may discourage, delay or prevent a
merger or acquisition that shareholders may consider favorable. This may reduce
the market price of our common shares. A summary of these provisions is included
in "Description of Share Capital--Antitakeover Effects of Some Provisions of
Memorandum of Association and Bye-laws."

OUR BYE-LAWS PROVIDE FOR WAIVER OF CLAIMS BY SHAREHOLDERS AND INDEMNIFY
DIRECTORS AND OFFICERS

    Our bye-laws provide for a broad indemnification of actions of directors and
officers. Under the bye-laws, the shareholders agree to waive claims against
directors and officers for their actions in the performance of their duties,
except for acts of fraud or dishonesty. These waivers will not apply to claims
arising under the United States federal securities laws and will not apply to
the extent that they conflict with provisions of the laws of Bermuda or with the
fiduciary duties of our directors and officers.

OUR OPERATIONS BASED IN BERMUDA MAY BE SUBJECT TO UNITED STATES TAXATION, WHICH
COULD SIGNIFICANTLY HARM OUR BUSINESS AND OPERATING RESULTS

    Except for our United States subsidiary, we do not consider ourselves to be
engaged in a trade or business in the United States. Our United States
subsidiary is subject to United States taxation on its worldwide income, and
dividends from our United States subsidiary are subject to United States
witholding tax. We and our non-U.S. subsidiaries would, however, be subject to
United States federal income tax on income related to the conduct of a trade or
business in the U.S. If we were determined to be subject to United States
taxation, our financial results would be significantly harmed. We cannot assure
you that the Internal Revenue Service will not contend that our Bermuda-based
operations are engaged in a United States trade or business and, therefore, are
subject to United States income taxation. See "Taxation" for more information on
the tax consequences of operating outside the United States.

A SUBSTANTIAL NUMBER OF OUR COMMON SHARES WILL BECOME AVAILABLE FOR SALE IN THE
PUBLIC MARKET SIMULTANEOUSLY, WHICH COULD CAUSE THE MARKET PRICE OF OUR SHARES
TO DECLINE

    Sales of substantial amounts of our common shares in the public market
following this offering or the awareness that a large number of shares is
available for sale could cause the market price of our common shares to decline.
Upon the expiration of lock-up agreements restricting the sale of shares by our
current shareholders, 28,725,805 of our common shares will become eligible for
immediate sale. Prior to such expiration date, Salomon Smith Barney may, in its
sole discretion and at any time, release all or any portion of the securities
subject to lock-up agreements. Sales of our common shares held by existing
shareholders could cause the market price of our stock to decline.

                                       17
<PAGE>
WE MAY APPLY THE PROCEEDS OF THIS OFFERING TO USES THAT DO NOT IMPROVE OUR
OPERATING RESULTS OR MARKET VALUE

    We will have considerable discretion to use the net proceeds of this
offering for our business, and you will not have the opportunity as part of your
investment decision to assess whether the proceeds are being used appropriately.
The net proceeds may be used for corporate purposes that do not improve our
operating results or our market value. Pending application of the net proceeds,
they may be placed in investments that do not produce income or that lose value.
See "Use of Proceeds" for more information on our application of the net
proceeds.

INVESTORS IN THIS OFFERING WILL EXPERIENCE AN IMMEDIATE AND SUBSTANTIAL DILUTION
IN THE BOOK VALUE OF THEIR INVESTMENT

    The per share book value of the common shares, adjusted to reflect the net
proceeds we receive from this offering, will be substantially below the price
paid by new investors in this offering. Investors in this offering will
therefore incur immediate and substantial dilution of $7.58 per share (at an
assumed initial public offering price of $11.00). See "Dilution."

BECAUSE WE DO NOT INTEND TO PAY ANY CASH DIVIDENDS ON OUR COMMON SHARES, HOLDERS
OF OUR COMMON SHARES WILL NOT BE ABLE TO RECEIVE A RETURN ON THEIR SHARES UNLESS
THEY SELL THEM

    We have never paid or declared any cash dividends on our common shares or
other securities and intend to retain any future earnings to finance the
development and expansion of our business. We do not anticipate paying any cash
dividends on our common shares in the foreseeable future. Unless we pay
dividends, our shareholders will not be able to receive a return on their shares
unless they sell them.

THERE HAS BEEN NO PRIOR MARKET FOR OUR COMMON SHARES, AND OUR SHARE PRICE MAY
DECLINE AFTER THIS OFFERING

    The initial public offering price may not be indicative of the price that
will prevail in the open market after this offering. An active trading market
for our common shares may not develop or be sustained after this offering. The
market price of our common shares is likely to be highly volatile and could be
subject to wide fluctuations in response to various factors, some of which are
beyond our control, including:

    - changes in financial estimates of our operating results by securities
      analysts;

    - fluctuations in the valuation of companies perceived by investors to be
      comparable to us; and

    - share market price and volume fluctuations attributable to inconsistent
      trading volume levels of our shares.

    Furthermore, the stock markets have experienced extreme price and volume
fluctuations that have affected and continue to affect the market prices of
equity securities of many technology companies. These fluctuations often have
been unrelated or disproportionate to the operating performance of those
companies. Market fluctuations as well as general economic, political and market
conditions such as recessions, interest rate changes or international currency
fluctuations, may negatively impact the market price of our common shares.

                                       18
<PAGE>
               SPECIAL NOTE REGARDING FORWARD LOOKING STATEMENTS

    This prospectus, including the sections entitled "Prospectus Summary," "Risk
Factors," "Management's Discussion and Analysis of Financial Condition and
Results of Operations" and "Business," contains forward-looking information.
This forward-looking information is subject to risks and uncertainties including
the factors listed under "Risk Factors," "Management's Discussion and Analysis
of Financial Condition and Results of Operations" and "Business," as well as
elsewhere in this prospectus. In some cases, you can identify forward-looking
statements by terminology such as "may," "will," "should," "expects," "intends,"
"plans," "anticipates," "believes," "estimates," "predicts," "potential" or
"continue," or the negative of these terms or other comparable terminology.
These statements are only predictions and may be inaccurate. Actual events or
results may differ materially. In evaluating these statements, you should
specifically consider various factors, including the risks outlined under "Risk
Factors." These factors may cause our actual results to differ materially from
any forward-looking statement. Although we believe that the expectations
reflected in the forward-looking statements are reasonable, we cannot guarantee
future results, levels of activity, performance or achievements.

                                       19
<PAGE>
                                USE OF PROCEEDS

    Based on an assumed initial public offering price of $11.00 per share, our
net proceeds from the sale of the 8.5 million common shares that we are offering
will be approximately $85.6 million after deducting the underwriting discount
and estimated expenses payable by us in connection with this offering. If the
underwriters exercise their over allotment option in full, our net proceeds will
be approximately $98.6 million.

    The principal purposes of this offering are to increase our working capital,
to fund both capital investment and research and development and other general
corporate purposes. See "Management Discussion and Analysis of Financial
Condition and Results of Operations--Liquidity and Capital Resources." Pending
any use of the net proceeds for the above purposes, we intend to invest the
funds in short-term, interest-bearing, investment grade securities. Other than
estimated capital expenditures of approximately $4.5 million in fiscal 2000 and
increased facility rent of approximately $1.0 million per year commencing
January 1, 2000, we have not identified specific uses for the net proceeds from
this offering. We will invest a portion of the proceeds to accelerate research
and development relating to our products based on the Internet Protocol and our
development of new products utilizing the future wireless standard. The amounts
we actually expend in these areas may vary significantly and will depend on a
number of factors, including our future revenues. Accordingly, management will
retain broad discretion in the allocation of the net proceeds of this offering.
You will not have the opportunity to evaluate the economic, financial or other
information on which we base our decisions on how to use the proceeds.

                                DIVIDEND POLICY

    We have never declared or paid any cash dividends on our capital shares. We
currently expect to retain any future earnings for developing and expanding our
business, and therefore we do not currently expect to pay cash dividends in the
foreseeable future.

                                       20
<PAGE>
                                 CAPITALIZATION

    The following table set forth our capitalization as of September 30, 1999:

    - on an actual basis;

    - on a pro forma basis after giving effect to:

       - the sale of 3,526,663 Series I1 preferred shares which closed in
         November and December 1999;

       - the issuance of 602,256 common shares upon exercise of options under
         our 1994 stock plan between September 30, 1999 and January 18, 2000;

       - the exercise of warrants for 2,000,000 preferred shares and 188,410
         common shares that the warrant holders have committed to exercise on
         the effectiveness of this offering at exercise prices ranging from
         $0.70 to $7.00 per share; and

       - the conversion of all outstanding preferred shares into 29,006,193
         common shares immediately prior to the completion of the offering;

    - on a pro forma as adjusted basis, after giving effect to the sale of
      8,500,000 common shares offered by us at an assumed initial public
      offering price of $11.00 per share after deducting the underwriting
      discount and estimated offering expenses payable by us, and the receipt of
      net proceeds from this offering.

<TABLE>
<CAPTION>
                                                                      SEPTEMBER 30, 1999
                                                              -----------------------------------
                                                                                       PRO FORMA
                                                               ACTUAL     PRO FORMA   AS ADJUSTED
                                                              ---------   ---------   -----------
                                                               (IN THOUSANDS, EXCEPT SHARE DATA)
<S>                                                           <C>         <C>         <C>
Cash and cash equivalents...................................  $  12,988   $  56,327    $ 141,932
Current portion of long-term debt...........................        680         680          680
Long-term debt, net of current portion......................        261         261          261
Convertible preferred shares, $0.83 par value:
  Authorized 56,500,000 shares; issued and outstanding
    23,479,530 shares (actual); no shares (pro forma and as
    adjusted)...............................................     19,488          --           --
Common shares, $0.001 par value:
  Authorized 100,000,000 shares; issued and outstanding
    6,074,019 shares (actual); 35,870,878 shares (pro
    forma); 44,370,878 shares (as adjusted).................          6          36           44
Additional paid-in capital..................................    145,316     208,113      293,710
Deferred compensation.......................................    (12,090)    (12,090)     (12,090)
Services receivable from shareholder........................     (5,542)     (5,542)      (5,542)
Note receivable from shareholder............................       (416)       (416)        (416)
Accumulated other comprehensive income......................         51          51           51
Accumulated deficit.........................................   (121,245)   (121,245)    (121,245)
                                                              ---------   ---------    ---------
Total shareholders' equity..................................     25,568      68,907      154,512
                                                              ---------   ---------    ---------
Total capitalization........................................  $  25,829   $  69,168    $ 154,773
                                                              =========   =========    =========
</TABLE>

    Common shares exclude:

    - 5,317,191 common shares issuable upon the exercise of options outstanding
      at January 18, 2000 at a weighted average exercise price of $1.96 per
      share;

    - 7,286,594 common shares issuable upon exercise of warrants outstanding at
      January 18, 2000 at an exercise price ranging from $0.70 to $7.00 per
      share;

    - 1,818,867 common shares available for issuance under our 1999 option plan;
      and

    - 300,000 common shares available for issuance under our 1999 employee share
      purchase plan.

                                       21
<PAGE>
                                    DILUTION

    Our pro forma net tangible book value as of September 30, 1999 was
approximately $66.2 million or approximately $1.85 per share. Pro forma net
tangible book value per share represents pro forma tangible assets less total
liabilities, divided by our pro forma number of outstanding common shares after
giving effect to, on a pro forma basis:

    - the sale of 3,526,663 Series I1 preferred shares which closed in November
      and December 1999;

    - the issuance of 602,256 common shares upon exercise of options under our
      1994 stock plan between September 30, 1999 and January 18, 2000;

    - the exercise of a warrant for 2,000,000 preferred shares and 188,410
      common shares that the warrant holders have committed to exercise on the
      effectiveness of this offering at exercise prices ranging from $0.70 to
      $7.00 per share; and

    - the conversion of all outstanding preferred shares into 29,006,193 common
      shares immediately prior to the completion of the offering.

    Without taking into account any changes in such pro forma net tangible book
value per share after September 30, 1999, other than to give effect to the sale
of the common shares in this offering at an assumed initial public offering
price of $11.00 per share after deducting the underwriting discount and
estimated expenses payable by us and the receipt of the net proceeds of such
sale, the pro forma net tangible book value as of September 30, 1999 would have
been approximately $151.8 million or approximately $3.42 per share. This
represents an immediate increase in pro forma net tangible book value per share
of $1.57 to existing shareholders and an immediate dilution of $7.58 per share
to new investors. The following table sets forth this per share dilution:

<TABLE>
<S>                                                           <C>     <C>
Assumed initial public offering price per share.............          $11.00

  Pro forma net tangible book value per share at
    September 30, 1999......................................  $1.85

  Increase in pro forma net tangible book value per share
    attributable to new investors...........................   1.57
                                                              -----

Pro forma net tangible book value per share after the
  offering..................................................            3.42
                                                                      ------

Dilution in pro forma net tangible book value per share to
  new investors.............................................          $ 7.58
                                                                      ======
</TABLE>

    The following table summarizes on a pro forma basis as of September 30, 1999
the differences between the number of common shares purchased from us, the total
consideration paid and the average price per share paid by existing shareholders
and by the new investors in the offering, before deducting the underwriting
discounts and commissions and estimated offering expenses payable by us, at an
assumed initial public offering price of $11.00 per share.

<TABLE>
<CAPTION>
                                                                                               AVERAGE
                                              SHARES PURCHASED        TOTAL CONSIDERATION     PRICE PAID
                                            ---------------------   -----------------------   ----------
                                              NUMBER     PERCENT       AMOUNT      PERCENT    PER SHARE
                                            ----------   --------   ------------   --------   ----------
<S>                                         <C>          <C>        <C>            <C>        <C>
Existing shareholders.....................  35,870,878       81%    $161,750,000       63%      $ 4.51
New investors.............................   8,500,000       19%      93,500,000       37%       11.00
                                            ----------     ----     ------------     ----
  Total...................................  44,370,878      100%    $255,250,000      100%
                                            ==========     ====     ============     ====
</TABLE>

                                       22
<PAGE>
    The foregoing discussion and table includes the exercise of a warrant for
2,000,000 preferred shares and 188,410 common shares that the warrant holder has
committed to exercise and the closing of the sale of Series I1 preferred shares
and excludes:


    - 5,308,295 common shares issuable upon the exercise of options outstanding
      at January 18, 2000 at a weighted average exercise price of $1.89 per
      share;


    - 7,286,594 common shares issuable upon exercise of warrants outstanding at
      January 18, 2000 at exercise prices ranging from $0.70 to $1.15 per share;

    - 1,818,867 common shares available for issuance under our 1999 option plan;
      and

    - 300,000 common shares available for issuance under our 1999 employee share
      purchase plan.

    If all options and warrants outstanding at January 18, 2000 were exercised,
the pro forma net tangible book value per share immediately after completion of
the offering would be $2.54, which represents an immediate dilution in net
tangible book value per share of $6.46 to purchasers of common shares in the
offering. See "Management--Employee Benefit Plans" and the notes to our
consolidated financial statements for more information on our option plans.

                                       23
<PAGE>
                      SELECTED CONSOLIDATED FINANCIAL DATA

    The following selected consolidated financial data should be read together
with "Management's Discussion and Analysis of Financial Condition and Results of
Operations" and the consolidated financial statements, including the related
notes found elsewhere in this prospectus. The statement of operations data for
the fiscal years ended June 30, 1997, 1998 and 1999 and the balance sheet data
as of June 30, 1998 and 1999 are derived from the audited consolidated financial
statements of interWAVE included elsewhere in this prospectus, which have been
audited by KPMG LLP, independent auditors. The statement of operations data for
the fiscal years ended June 30, 1995 and 1996 and the balance sheet data as of
June 30, 1995, 1996 and 1997 are derived from unaudited consolidated financial
statements not included in this prospectus. The statement of operations data for
the periods ended September 30, 1998 and 1999 and the balance sheet data as of
September 30, 1999 are unaudited.

    Our consolidated financial statements are prepared in accordance with U.S.
GAAP. All dollar amounts are expressed in U.S. dollars. Our fiscal year ends on
the Friday nearest June 30.

<TABLE>
<CAPTION>
                                                                                                          THREE MONTHS
                                                                                                              ENDED
                                                             FISCAL YEAR ENDED JUNE 30,                   SEPTEMBER 30,
                                                ----------------------------------------------------   -------------------
                                                  1995       1996       1997       1998       1999       1998       1999
                                                --------   --------   --------   --------   --------   --------   --------
                                                                  (IN THOUSANDS, EXCEPT PER SHARE DATA)    (UNAUDITED)
<S>                                             <C>        <C>        <C>        <C>        <C>        <C>        <C>
STATEMENT OF OPERATIONS DATA:
Net revenues..................................  $    --    $     --   $  1,841   $ 12,995   $ 17,293   $ 4,487    $ 5,377
Cost of revenues..............................       --          --      3,617     12,251     12,531     2,477      3,973
                                                -------    --------   --------   --------   --------   -------    -------
Gross profit..................................       --          --     (1,776)       744      4,762     2,010      1,404
                                                -------    --------   --------   --------   --------   -------    -------
Operating expenses:
  Research and development....................    3,415      11,268     14,169     15,300     14,174     3,872      3,562
  Selling, general and administrative.........    1,065       4,818      6,923      7,742      7,440     1,759      2,088
  Amortization of deferred stock
    compensation..............................      908       4,422      6,377      7,604      5,254     1,523      3,324
                                                -------    --------   --------   --------   --------   -------    -------
Total operating expenses......................    5,388      20,508     27,469     30,646     26,868     7,154      8,974
                                                -------    --------   --------   --------   --------   -------    -------
Loss from operations..........................   (5,388)    (20,508)   (29,245)   (29,902)   (22,106)   (5,144)    (7,570)
Interest expense..............................       (9)        (66)      (479)    (1,115)    (2,403)      (49)    (1,959)
Other income..................................      103         620        653        415        154       102         59
                                                -------    --------   --------   --------   --------   -------    -------
Net loss before income taxes..................   (5,294)    (19,954)   (29,071)   (30,602)   (24,355)   (5,091)    (9,470)
Income tax expense............................       --          --        111        220        113        --         --
                                                -------    --------   --------   --------   --------   -------    -------
Net loss......................................  $(5,294)   $(19,954)  $(29,182)  $(30,822)  $(24,468)  $(5,091)   $(9,470)
                                                -------    --------   --------   --------   --------   -------    -------
Dividend effect of beneficial conversion
  feature to H-1 preferred shareholders.......       --          --         --         --         --        --     (2,055)
Net loss attributable to common
  shareholders................................   (5,294)    (19,954)   (29,182)   (30,822)   (24,468)   (5,091)   (11,525)
                                                =======    ========   ========   ========   ========   =======    =======
Basic and diluted net loss per share..........  $ (1.55)   $  (5.36)  $  (7.12)  $  (6.68)  $  (4.96)  $ (1.05)   $ (2.10)
                                                =======    ========   ========   ========   ========   =======    =======
Weighted average common shares outstanding
  basic and diluted...........................    3,422       3,720      4,099      4,614      4,934     4,840      5,480
                                                =======    ========   ========   ========   ========   =======    =======
Basic and diluted pro forma net loss per share
  (unaudited).................................                                              $  (0.76)             $ (0.36)
                                                                                            ========              =======
Shares used in computing pro forma net loss
  per share, basic and diluted (unaudited)....                                                32,345               32,345
                                                                                            ========              =======
</TABLE>

<TABLE>
<CAPTION>
                                                                                  JUNE 30,                         SEPTEMBER 30,
                                                            ----------------------------------------------------   -------------
                                                              1995       1996       1997       1998       1999         1999
                                                            --------   --------   --------   --------   --------   -------------
                                                                                       (IN THOUSANDS)
<S>                                                         <C>        <C>        <C>        <C>        <C>        <C>
BALANCE SHEET DATA:
Cash and cash equivalents.................................  $11,206    $25,768    $14,862    $ 7,340    $ 3,919       $12,988
Working capital...........................................   10,476     23,519     14,785     10,770      1,608        17,739
Total assets..............................................   12,992     34,779     34,986     29,613     26,568        35,080
Long-term debt, net of current portion....................      134      6,364      1,288      1,074        486           261
Total shareholders' equity................................   12,037     24,046     21,447     18,453      8,800        25,568
</TABLE>

    The pro forma financial data presented above reflects the exercise of
outstanding warrants to purchase 2,000,000 preferred shares and 188,410 common
shares that the warrant holder has committed to exercise on the effectiveness of
the offering, issuance of 602,256 common shares upon exercise of options between
September 30, 1999 and January 18, 2000, and the conversion upon the closing of
the offering of all outstanding preferred shares into 29,006,193 common shares.

                                       24
<PAGE>
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

    THE FOLLOWING DISCUSSION SHOULD BE READ TOGETHER WITH OUR CONSOLIDATED
FINANCIAL STATEMENTS AND RELATED NOTES INCLUDED ELSEWHERE IN THIS PROSPECTUS.
OUR FISCAL YEAR ENDS ON THE FRIDAY NEAREST JUNE 30.

OVERVIEW

    We provide compact wireless communications systems for the GSM market. We
were incorporated in June 1994 and recorded our first product sale in May 1997.
Our systems were initially deployed to add capacity and coverage to existing
systems, primarily in Asia. Deployments of community networks began in 1998,
primarily in China and Africa. Trials of our wireless office systems commenced
in 1999 in both Europe and Asia. Prior to May 1997, we had no sales and our
operations consisted primarily of various start-up activities, such as research
and development, recruiting personnel, conducting customer field trials and
raising capital. We generated net revenues of $1.8 million in 1997,
$13.0 million in 1998, $17.3 million in 1999 and $5.4 million in the three
months ended September 30, 1999. We incurred net losses of $29.2 million in
1997, $30.8 million in 1998, $24.5 million in 1999 and $9.5 million in the three
months ended September 30, 1999. As of September 30, 1999, we had an accumulated
deficit of $121.2 million.

    We operate in a single business segment. We generate net revenues from sales
of our systems and, in connection with our direct sales activity, from
installation, maintenance contracts and support of those systems. Revenue
derived from systems sales, comprised of unit sales of our WAVEXpress base
station and base station controller, our WAVEXchange, our Network In A Box and
our WAVEView management system, constituted 96% of net revenues in 1997, 92% of
net revenues in 1998 and 88% of net revenues in 1999. Revenue is recognized when
all of the following have occurred: the system has been shipped, title and risk
of loss have passed to the customer, we have the right to invoice the customer,
collection of the receivable is probable and we have fulfilled all contractual
obligations to the customer. Revenue from installation is recognized as the
services are performed to the extent of direct installation costs incurred, and
the excess is deferred and recognized over the estimated life of the product,
while revenue from extended warranty coverage and customer support is recognized
ratably over the period of the service contract. Trial sales directly to
wireless service providers are not recognized as revenue until the trial is
completed. Trials of our systems conducted by communications equipment providers
and systems integrators are typically shipped from inventory held by those
parties and do not result in incremental revenue to us.

    Currently, our revenues are generated by sales to communications equipment
providers and system integrators that may either sell our systems on a
stand-alone basis or integrate them with their systems and by our direct sales
force. In fiscal year 1999, sales to communications equipment providers
represented 61% of total revenues, sales to systems integrators accounted for
23% of total revenues and direct sales to wireless service providers represented
16% of total revenues.


    We have entered into purchase and distribution agreements with Nortel
Networks and Alcatel. These multi-year agreements specify quarterly minimum
purchase commitments by these communications equipment providers. Nortel
Networks' quarterly purchase commitments began in June 1998 and increase
quarterly through December 2000. Alcatel's quarterly purchase commitments
commence in June 2000 and extend through December 2001. Both agreements also
obligate us to meet certain product development milestones and provide for a
reduction in Nortel Networks' and Alcatel's purchase commitments if we do not
meet our development milestones. In April 1999, we agreed to reduce Nortel
Networks' remaining quarterly commitments because we were unable to meet certain
product feature specifications provided for in the agreement. We do not rely
solely on these purchase commitments to forecast our production requirements or
anticipated sales to these customers. Rather, we also rely on our internal sales
forecasts and our ongoing discussions with these customers, including their
formal purchase orders, as guidance for planning our production and our revenue


                                       25
<PAGE>

outlook. However, we do rely in part on these minimum purchase commitments in
forecasting production quantities. Because of the relatively fixed nature of
many of our expenses, including personnel and facilities costs, we cannot
immediately adjust expenses in response to a decline in revenues. Therefore,
failure of these customers to achieve their quarterly purchase commitments could
cause a decline in our operating results. For additional information regarding
our transactions with Nortel Networks, please see "Certain Transactions--Series
G Preferred Financing, Purchase and Distribution Agreement," and "Certain
Transactions--Series I1 Preferred Share Financing, Purchase and Distribution
Agreement."


    Net revenues outside the United States represented approximately 83%, 49%,
30% and 27% of total net revenues in fiscal years 1997, 1998, 1999 and for the
three months ended September 30, 1999, respectively. We have derived and expect
to continue to derive a majority of our revenues from products installed outside
the U.S. by both non-U.S. and U.S. based communications equipment providers,
systems integrators and wireless service providers, subjecting our revenue
stream to risks from economic uncertainties, currency fluctuations, political
instability and uncertain cultural and regulatory environments. All of our
revenues are in U.S. dollars, which reduces our exposure to fluctuations in
revenues attributable to changes in currency exchange rates. In addition, we
face risks inherent in conducting global business. These risks include extended
collection time for receivables, reduced ability to enforce obligations and
reduced protection for our intellectual property.

    We recorded revenue from our first product sale in May 1997. We have a
limited history of generating significant revenues, and many of our products
have only recently been introduced. We have incurred substantial operating
losses since our inception and we expect to incur net losses in the future which
may be substantial. Most of our expenses are fixed in the near term, and we may
not be able to quickly reduce spending if our revenue is lower than anticipated.
Therefore, net losses in a given quarter could be greater than expected. You
have limited historical financial data and operating results with which to
evaluate our business and our prospects. As a result, you must consider our
prospects in light of the early stage of our business in a new and rapidly
evolving market. For additional information on factors that may affect our
future results of operations, please see "Risk Factors."

    Communications equipment providers, system integrators and wireless service
providers typically perform numerous tests and extensively evaluate products
before incorporating them into their networks. The time required for testing,
evaluation and design of our systems into the service provider's network
typically ranges from six to twelve months. During the trial period we sell a
limited number of units. The successful completion of the trial phase often
results in another sale of additional units intended for deployment in
commercial service. Our business could be adversely affected if a significant
customer reduces or delays orders during our sales cycle or chooses not to
deploy networks incorporating our systems.

    Cost of revenues consists of material costs, direct labor costs, warranty
costs, royalties, overhead related to manufacturing our products, amortization
of intangible assets, and customer support costs.

    In general, our gross margins will be affected by the following factors and,
therefore, we are unable to predict what these margins will be in the future:

    - demand for our products and services;

    - new product introductions, both by us and our competitors;

    - changes in our pricing policies and those of our competitors;

    - the mix of products sold;

    - the sales channels through which our products are sold; and

    - the purchase volume discounts we are able to obtain from our contract
      manufacturers.

                                       26
<PAGE>
    We currently obtain all of our primary components and subassemblies for our
products from two independent contract manufacturers. Accordingly, a significant
portion of our cost of revenues consists of payments to these suppliers. The
remainder of our cost of revenues is related to our in-house manufacturing
operations, which consist primarily of quality control, final assembly, testing
and product integration. In conjunction with the consolidation of our
manufacturing operations with a single contract manufacturer, we expect to
outsource the final assembly, testing, and product integration activity by the
middle of calendar year 2000.

    Research and development expenses consist primarily of compensation and
related costs for research and development personnel and expenses for testing
facilities and equipment. All research and development costs are expensed as
they are incurred. We expect to continue to make substantial investments in
research and development and anticipate that these expenses will continue to
increase in absolute dollars.

    Selling, general and administrative expenses consist primarily of
compensation and related costs for sales and sales support personnel, marketing
personnel, financial, accounting, human resource and general management
personnel, sales commissions, marketing programs, legal and professional
services, travel expenses, bad debt expenses and other general corporate
expenses. We expect to incur substantial expenditures related to sales and
marketing activities, the recruitment of additional sales and marketing
personnel and the expansion of our domestic and international distribution
channels. We expect selling, general and administrative expenses to increase in
absolute dollars due to the addition of sales and marketing personnel and due to
the additional costs related to the anticipated growth of our business and
operation as a public company.

    We are planning to consolidate our manufacturing activities with a single
contract manufacturer. Accordingly, our dependence on this manufacturer will
increase. Problems encountered during the consolidation or future problems
relating to the manufacturer's inability to meet our quality and delivery
specifications could harm our operating results.

    Since our inception, we have used share option programs for key employees as
compensation to attract strong business and technical talent. We have recorded
compensation expense for our option grants. The expense is equal to the excess
of the fair market price on the date of grant or sale over the option exercise
price. Of the total deferred compensation, approximately $6.4 million,
$7.6 million, $5.3 million and $3.3 million was amortized in fiscal years 1997,
1998, 1999 and the three months ended September 30, 1999, respectively. The
balance in deferred compensation of $12.1 million at September 30, 1999 is being
amortized on an accelerated basis over the vesting period of the applicable
options, which is typically four years.

    Our products operate on the GSM standard. GSM competes with other digital
standards, including code division multiple access, or CDMA, and time division
multiple access, or TDMA. GSM also competes with analog standards. In the event
that TDMA or CDMA become the dominant digital wireless communication standard in
geographic markets we are seeking to address, the acceptance of our products and
our revenues and operating results would be harmed.

    Our industry is intensely competitive, and many of our competitors are major
telecommunications equipment providers with resources that are significantly
greater than ours. In addition to competitive pressures, we will also likely
encounter declining sales prices and profit margins over time as products
mature.

                                       27
<PAGE>
RESULTS OF OPERATIONS

    The following table presents certain consolidated statement of operations
data for the periods indicated as a percentage of net revenues.

<TABLE>
<CAPTION>
                                                                             THREE MONTHS
                                                                                ENDED
                                  FISCAL YEARS ENDED JUNE 30,               SEPTEMBER 30,
                              ------------------------------------      ----------------------
                                1997          1998          1999          1998          1999
                              --------      --------      --------      --------      --------
<S>                           <C>           <C>           <C>           <C>           <C>
As a Percentage of Net
  Revenues:
  Net revenues..............     100.0 %       100.0 %       100.0 %      100.0 %       100.0 %
  Cost of revenues..........     196.5          94.3          72.5         55.2          73.9
                              --------      --------      --------       ------        ------
  Gross margin..............     (96.5)          5.7          27.5         44.8          26.1
Operating expenses:
  Research and development..     769.6         117.7          82.0         86.3          66.2
  Selling, general and
    administrative..........     376.0          59.6          43.0         39.2          38.8
  Amortization of deferred
    stock compensation......     346.4          58.5          30.4         33.9          61.8
                              --------      --------      --------       ------        ------
Total operating expenses....   1,492.1         235.8         155.4        159.4         166.9
                              --------      --------      --------       ------        ------
  Loss from operations......  (1,588.5)       (230.1)       (127.8)      (114.6)       (140.8)
  Interest expense..........     (26.0)         (8.6)        (13.9)        (1.1)        (36.4)
  Other income (loss) net...      35.5           3.2           0.9          2.3           1.1
                              --------      --------      --------       ------        ------
  Loss before income
    taxes...................  (1,579.1)       (235.5)       (140.8)      (113.5)       (176.1)
  Income tax expense........      (6.0)         (1.7)         (0.7)          --            --
                              --------      --------      --------       ------        ------
  Net loss..................  (1,585.1)%      (237.2)%      (141.5)%     (113.5)%      (176.1)%
                              ========      ========      ========       ======        ======
</TABLE>

    Sales to major customers are as follows (in thousands):
<TABLE>
<CAPTION>
                                                    NET REVENUES
                                -----------------------------------------------------
                                                                     THREE MONTHS
                                         FISCAL YEARS                   ENDED
                                        ENDED JUNE 30,              SEPTEMBER 30,
                                ------------------------------   --------------------
                                  1997       1998       1999       1998        1999
                                --------   --------   --------   --------    --------
<S>                             <C>        <C>        <C>        <C>         <C>
Nortel Networks...............   $   --     $2,392     $8,797     $2,379      $  942
ADC Telecommunications/
  Microcellular Systems,
  Ltd.........................      279      6,099      3,449      1,405       1,122
Hutchison Telecommunications
  Group.......................    1,251      2,754      1,409        200         257
Total Access Communications...        8      1,750        505         --         500
HangZhou Topper Electric
  Corporation.................       --         --        400         --       2,068
Alcatel.......................       --         --      1,217        503          88

<CAPTION>
                                                % OF TOTAL NET REVENUES
                                --------------------------------------------------------
                                                                       THREE MONTHS
                                         FISCAL YEARS                     ENDED
                                        ENDED JUNE 30,                SEPTEMBER 30,
                                -------------------------------   ----------------------
                                  1997        1998       1999       1998          1999
                                ---------   --------   --------   --------      --------
<S>                             <C>         <C>        <C>        <C>           <C>
Nortel Networks...............        --%      18%        51%        53%           18%
ADC Telecommunications/
  Microcellular Systems,
  Ltd.........................        15       47         20         31            21
Hutchison Telecommunications
  Group.......................        68       21          8          4             5
Total Access Communications...        --       13          3         --             9
HangZhou Topper Electric
  Corporation.................        --       --          2         --            38
Alcatel.......................        --       --          7         11             2
</TABLE>

    The percentage of net revenues on a fiscal year basis comprised by sales to
Nortel Networks may decline due in part to the broadening of our customer base.
Nortel Networks is a principal shareholder of ours and an employee of Nortel
Networks serves on our board of directors. ADC Telecommunications, Alcatel and
Holodeck Limited, an affiliate of Hutchison Telecommunications Group and a
wholly-owned subsidiary of Hutchison Whampoa, are shareholders of ours.
Microcellular Systems was created by a spin-off from ADC Telecommunications. Due
in part to general

                                       28
<PAGE>
improvements in economic conditions in several key Asian markets, we may
experience increased sales in Asia in future periods.

    We have also begun negotiations for a purchase/resale agreement with Intasys
Corporation, one of our shareholders. Intasys plans to market our products in
Canada. As of September 30, 1999, we had recorded $3.6 million in services
receivable from this shareholder as a result of our issuance to Intasys of a
warrant to purchase 615,000 common shares at $1.00 per share. This warrant
expires on the effectiveness of our initial public offering. See Note 9 to the
Consolidated Financial Statements.

COMPARISON OF THREE MONTHS ENDED SEPTEMBER 30, 1998 AND 1999

NET REVENUES

    Net revenues increased 20% or $0.9 million from $4.5 million for the three
months ended September 30, 1998 to $5.4 million for the three months ended
September 30, 1999. This increase was due to continued increases in the number
of active customers and the continued deployment of our systems. Four customers
accounted for all of our net revenues in the three months ended September 1998
while 11 customers accounted for all of our net revenues in the three months
ended September 1999. Sales to Nortel Networks and ADC Telecommunications
accounted for 53% and 31%, respectively, of net revenues in the three months
ended September 30, 1998, while sales to HangZhou Topper Electric Corporation
and Microcellular Systems in the United Kingdom accounted for 38% and 21%,
respectively, of net revenues in the three months ended September 30, 1999.

COST OF REVENUES

    Cost of net revenues increased 60% or $1.5 million during the three months
ended September 30, 1999 compared with the three months ended September 30,
1998. As a percentage of net revenues, cost of revenues increased from 55% for
the three months ended September 30, 1998 to 74% for the three months ended
September 30, 1999, due to the mix of products sold. In the three months ended
September 30, 1998, 38% of net revenues was attributed to our WAVEXchange and
Network In A Box products, which earn higher gross profits, while 43% was
attributed to our WAVEXpress/BTS, which earns lower gross profits. In the three
months ended September 30, 1999, 24% of net revenues was attributed to our
WAVEXchange and Network In A Box products, which earn higher gross profits,
while 65% was attributed to our WAVEXpress/BTS, which earns lower gross profits.
The product mix in any quarter will vary depending on the customer's application
and network design, and therefore our gross profits will fluctuate. Due to the
relatively short time that we have been shipping our complete product line, we
are unable to forecast with certainty our product mix on a quarterly basis.
However, we expect that our gross profits will fluctuate on a quarterly basis.

RESEARCH AND DEVELOPMENT EXPENSES

    Research and development expenses declined approximately $0.3 million or 8%
from $3.9 million for the three months ended September 30, 1998 to $3.6 million
for the three months ended September 30, 1999. The decrease was primarily due to
a $0.5 million reduction in non-recurring engineering costs and engineering
contractor expenses, partially offset by a $0.2 million increase in engineering
staff and recruiting expenses.

SELLING, GENERAL AND ADMINISTRATIVE EXPENSES

    Selling, general and administrative expenses increased $329,000 or 19%
during the three months ended September 30, 1999 compared with the three months
ended September 30, 1998. Approximately $274,000 of the increase was due to
increased sales and administration personnel and approximately $66,000 was due
to increased sales commissions on higher revenue. Selling, general and
administrative expenses are expected to continue to increase as we expand our
marketing and sales support staff to support the increased number of customers
we serve and as we increase our general, administrative and

                                       29
<PAGE>
management expenses to provide support as a public company. For example, our
chief financial officer joined our payroll in July 1999, and our president and
chief operating officer joined our payroll in September 1999.

AMORTIZATION OF DEFERRED STOCK COMPENSATION

    Amortization of deferred stock compensation increased $1,801,000 or 118%
during the three months ended September 30, 1999 compared with the three months
ended September 30, 1998. During the three months ended September 30, 1999,
options to purchase 1,973,750 common shares were granted at an average exercise
price of $1.45 resulting in an addition to deferred stock compensation of
$11.7 million.

INTEREST EXPENSE

    Interest expense increased from $49,000 in the three months ended
September 30, 1998 to $1,959,000 in the three months ended September 30, 1999.
Of the 1999 amount, $1,744,000 was due to amortization of the discount ascribed
to the warrants issued in conjunction with the bridge loan financing. See
Note 8 to the Consolidated Financial Statements. The notes were converted to
Series H1 preferred shares as of September 10, 1999. As a result of the
conversion of the notes into Series H1 preferred shares in September, the
unamortized discount was converted to additional paid-in-capital, and no further
interest expense will be incurred relative to the bridge loan financing. Should
we elect to borrow funds under our committed revolving line of credit, we will
incur interest expense during any periods when amounts are outstanding under the
line. At current interest rates, the maximum borrowings under the available line
would result in quarterly interest expense of approximately $112,000. There are
no current plans to draw down any of the available funds under this revolving
line of credit.

COMPARISON OF FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

NET REVENUES

    We began generating revenue in May 1997. Net revenues increased
$11.2 million, from $1.8 million in 1997 to $13.0 million in 1998. This increase
was due primarily to the generation of revenue in four quarters of 1998 versus
only two months of 1997.

    Net revenues increased $4.3 million or 33%, from $13.0 million in 1998 to
$17.3 million in 1999. This increase was principally due to increased sales to
Nortel Networks, who began marketing our products in the fourth quarter of 1998.
Nortel Networks accounted for $8.8 million of our 1999 net revenues, an increase
of $6.4 million over 1998. This increase, however, was offset by a reduction in
sales, through ADC Telecommunications who, with our consent, assigned our
distribution agreement to Microcellular Systems, a new company formed by a group
of former ADC Telecommunications employees in the spring of 1999. ADC
Telecommunications accounted for $3.4 million of our sales in 1999 and
$6.1 million in 1998. Also, in the second half of fiscal 1998, wireless service
providers in Asia were adversely impacted by local economic conditions and
accordingly curtailed their planned programs to deploy our products aggressively
in their networks. Thus, sales to Hutchison Telecommunications Group and Total
Access Communications each declined to less than 10% of our revenues in fiscal
1999. Net revenues in 1999 included $1.0 million related to training and support
services provided to a communications equipment provider. We incurred
$0.2 million of expenses related to this net revenue.

COST OF REVENUES

    Cost of revenues increased $8.7 million from $3.6 million in 1997 to
$12.3 million in 1998. This increase is primarily attributable to the increase
in net revenues described above. As a percentage of net revenues, cost of
revenues decreased from 196% in 1997 to 94% in 1998, due primarily to a smaller
rate of increase in customer support costs than in net revenues. The 1998 cost
of revenues includes an

                                       30
<PAGE>
approximately $1.4 million charge due to an inventory write-off of product
originally ordered to satisfy anticipated product orders from our Asian
customers in the second half of fiscal 1998, but which could not be shipped due
to the economic status in that region.

    Cost of revenues increased $0.2 million from $12.3 million in 1998 to
$12.5 million in 1999. As a percentage of net revenues, cost of revenues
decreased from 94% in 1998 to 72% in 1999. The decrease in the percentage of net
revenues was primarily due to lower cost of revenues associated with the
WAVEXchange and Network In A Box products introduced in the first half of fiscal
1999.

RESEARCH AND DEVELOPMENT EXPENSES

    Research and development expenses increased $1.1 million or 8% from
$14.2 million in 1997 to $15.3 million in 1998. The major items contributing to
the increase included employee related expenses and non-recurring engineering
expenses of $1.2 million, depreciation expenses of $0.6 million, and facilities
related expenses of $0.9 million. These increases were offset by the decrease of
$1.7 million in preproduction manufacturing and service support expenses which
were classified as cost of revenues in 1998 with the deployment and shipment of
revenue.

    Research and development expenses decreased $1.1 million or 7% from
$15.3 million in 1998 to $14.2 million in 1999 primarily due to a reduction in
nonrecurring engineering costs and engineering contractors expenses of
$1.2 million. In addition, expenses were reduced $0.3 million for hiring and
relocation expense, and $0.5 million for prototype materials. These reductions
were offset with other expense increases including additional personnel costs of
$0.4 million, increased depreciation expense of $0.2 million and intangible
amortizations of $0.3 million.

    We anticipate an acceleration in research and development expenditures. From
1997 through 1999, however, the growth in our research and development
expenditures was affected by our difficulties in attracting and retaining
trained personnel. Nevertheless, we have recently begun to increase our research
and development expenses with an increase in research and development staff from
67 employees at June 30, 1999 to 75 employees at September 30, 1999. We expect
to continue to add staff to future product development activities, including
products utilizing the Internet Protocol and products utilizing the future
standard.

SELLING, GENERAL AND ADMINISTRATIVE EXPENSES

    Selling, general and administrative expenses increased $0.8 million from
$6.9 million in 1997 to $7.7 million in 1998. This increase consists of the
addition of employees in our Hong Kong and Beijing offices to support our direct
sales activity in the Pacific region and expenses associated with our
participation in the 1998 GSM World Congress in Cannes, France.

    Selling, general and administrative expenses declined $0.3 million from
$7.7 million in 1998 to $7.4 million in 1999. This decrease was due to a shift
in our sales strategy to emphasize indirect sales channels. Selling general and
administrative expenses began increasing in the fourth quarter of 1999 as we
began making investments in marketing programs and increasing our presence in
Hong Kong and Paris.

AMORTIZATION OF DEFERRED STOCK COMPENSATION

    Amortization of deferred stock compensation increased $1.2 million from
$6.4 million in 1997 to $7.6 million in 1998. Amortization of deferred stock
compensation decreased $2.3 million from $7.6 million in 1998 to $5.3 million in
1999.

                                       31
<PAGE>
INCOME TAXES

    There is no income tax on income earned in Bermuda.

    In 1997, 1998 and 1999 our U.S. subsidiary incurred net losses for United
States federal and state income tax purposes; and we recorded a provision for
income taxes of $111,000, $220,000 and $113,000, respectively, related to
current international income tax provided on the profits attributable to our
foreign operations. As of June 30, 1999, we had $23.8 million of federal and
$12.7 million of state net operating loss carryforwards to offset future taxable
income. The difference between available net operating losses and our
accumulated deficit as reported for financial statement purposes is principally
because losses incurred in Bermuda are not subject to a carry-forward since
there is no tax on income earned in Bermuda, and the losses attributable to our
U.S. subsidiary relate to the manufacturing and development operations of our
U.S. subsidiary and not to our global sales and marketing activity.

QUARTERLY RESULTS OF OPERATIONS

    The following presents net revenues for our seven most recent quarters ended
October 1, 1999.

<TABLE>
<CAPTION>
                                                                      THREE MONTHS ENDED
                                 ---------------------------------------------------------------------------------------------
                                 MAR 27,       JUNE 26,       SEPT 25,      DEC 25,       MAR 25,       JULY 2,        OCT 1,
                                   1998          1998           1998          1998          1999          1999          1999
                                 --------      ---------      --------      --------      --------      --------      --------
<S>                              <C>           <C>            <C>           <C>           <C>           <C>           <C>
Net revenues...............      $ 1,009        $ 5,465       $ 4,487       $ 4,097       $ 4,024       $ 4,685       $ 5,377
</TABLE>

    We believe that period-to-period comparisons of our operating results are
not necessarily meaningful. You should not rely on them to predict future
performance. The amount and timing of our operating expenses may fluctuate
significantly in the future as a result of a variety of factors. We face a
number of risks and uncertainties encountered by early stage companies,
particularly those in rapidly evolving markets such as the wireless
communications industry. We may not be able to address these risks and
difficulties successfully. In addition, we may not be able to continue to add
new customers on a regular basis and our revenue may not grow, and we may not
achieve or maintain profitability in the future.

    Our quarterly and annual operating results have fluctuated in the past and
are likely to fluctuate significantly in the future. It is likely that in some
future quarter our operating results will fall below the expectations of
securities analysts and investors. In this event, the market price of our common
share could significantly decline.

    See "Risk Factors--Our quarterly operating results are likely to fluctuate
significantly and may fail to meet the expectations of securities analysts and
investors, causing our stock price to decline" for more information on the
factors affecting our quarterly results.

    Our sales cycle, which is typically between six and twelve months,
contributes to fluctuations in our quarterly operating results. Further, the
emerging and evolving nature of the market for systems such as our Network In A
Box may lead prospective customers to postpone their purchasing decisions. In
addition, general concerns regarding year 2000 compliance may further delay
purchase decisions by prospective customers.

    Most of our expenses, such as employee compensation and lease payments for
facilities and equipment, are relatively fixed in the near term. In addition,
our expense levels are based, in part, on our expectations regarding future
revenues. As a result, any shortfall in revenues relative to our expectations
could cause significant changes in our operating results from quarter to
quarter.

LIQUIDITY AND CAPITAL RESOURCES

    Since inception, we have financed our operations primarily through the sale
of preferred equity securities and more recently through the sale of secured
convertible notes and warrants.

                                       32
<PAGE>
    The following tables describe the preferred share issuances and debt
financings that have funded our operations from inception through January 18,
2000:

PREFERRED STOCK FINANCINGS

<TABLE>
<CAPTION>

<C>                     <C>        <C>           <C>        <C>         <C>         <C>         <S>                        <C>
                                                                        WARRANTS
                                   CONSIDERATION  PRICE     PREFERRED      OR
                                      ($           PER       SHARES      OPTIONS    EXERCISE
DATE CLOSED             SERIES     MILLIONS)      SHARE      ISSUED      ISSUED     PRICE/SHARE   PRINCIPAL INVESTOR(S)     NOTES
<CAPTION>

<C>                     <C>        <C>           <C>        <C>         <C>         <C>         <S>                        <C>
    8/94                  A           $ 2.8       $ 0.83    3,400,000   1,000,000     $1.00     EXCELlink                    (1)
    8/94                  B           $ 3.2       $ 1.20    2,670,000         --         --     Mainwell
    1/95                  C           $ 1.5       $ 1.50    1,000,000         --         --     EXCELlink, Sasson
    5/95                  D           $14.0       $ 3.00    4,680,000    100,000      $0.30     Mayfield, Morgan Stanley,    (2)
                                                                                                Sasson
    3/96                  E           $25.7       $10.00    2,567,167         --         --     Holodeck Limited             (3)
    5/97                  F           $17.3       $11.50    1,500,000         --         --     UCOM Company
                                                                                                International Limited
    3/98                  G           $24.5       $ 5.35    3,714,286   2,000,000     $7.00     Nortel Networks              (4)
    6/99                  H           $ 2.5       $ 7.00      360,000         --         --     ADC Telecommunications       (5)
    6/99                 H1           $ 2.0         6.26      285,715     40,000      $1.00     DAMAC                        (6)
    9/99                 H1           $10.0       $ 6.06    1,430,000    200,000      $1.00     Intasys, MediaTel            (6)
    11/99                I1           $12.2       $ 8.00    1,526,663         --         --     Alcatel
    12/99                I1           $16.0       $ 8.00    2,000,000         --         --     Holodeck Limited
</TABLE>

(1) A warrant to purchase an additional 1,000,000 Series A preferred shares at
    $1.00 per share was issued to EXCELlink and was exercised in May 1995.
    EXCELlink subsequently transferred the 1,000,000 Series A preferred to third
    parties.

(2) 80,000 of the 4,680,000 Series D preferred shares were sold to 15
    sophisticated individual investors. Stock options to purchase a total of
    100,000 common shares were issued to the Mayfield entities and were
    exercised in March 1997.

(3) All Series E preferred shares were sold to 75 sophisticated individual
    investors. Holodeck purchased 400,000 Series E preferred shares.

(4) Nortel Networks was the sole investor in the Series G preferred financing.
    The 3,714,286 Series G preferred shares listed includes shares issued in
    exchange for patent license rights and services to be rendered under an
    original equipment manufacturing agreement. The warrant issued to Nortel
    Networks is for 2,000,000 Series G preferred shares at $7.00 per share.
    Using the Black-Scholes option valuation model, $4,629,000 of the amount
    raised in the Series G preferred financing is attributed to the warrant.
    Additional information regarding this preferred stock financing is provided
    under "Certain Transactions-Series G Preferred Financing" and "Consolidated
    Financial Statements-Note 9".

(5) The purchase price for the 360,000 Series H preferred shares listed was paid
    by the cancellation and satisfaction of all outstanding invoices and
    indebtedness by us for services performed by ADC Telecommunications.

(6) In addition to the 1,715,715 Series H1 preferred shares listed, an
    additional 1,872,362 Series H1 preferred shares were issued upon the
    automatic conversion of our 1999 convertible note and warrant financing.
    Additional information regarding the conversion is provided under "Certain
    Transactions-Convertible Note and Warrant Financing".

Each preferred share converts automatically into 1 common share upon completion
of our initial public offering.

                                       33
<PAGE>
DEBT FINANCINGS

<TABLE>
<CAPTION>

<C>                     <C>           <C>         <S>                                 <C>                                <C>
                         FUNDS
                        BORROWED ($    ANNUAL
DATE CLOSED             MILLIONS)       RATE             DESCRIPTION OF DEBT                PRINCIPAL INVESTOR(S)         NOTES
<CAPTION>

<C>                     <C>           <C>         <S>                                 <C>                                <C>
      5/96                 $ 6.0         12%      Note convertible into Series E      Holodeck Limited                     (1)
                                                  Preferred Shares
   2/97-8/97               $ 1.6         (2)      Note Payable                        PhoenixCor                           (2)
   12/98-6/99              $12.7       8%-12%     Notes convertible into Series H1    EXCELlink, Holodeck, Mayfield,       (3)
                                                  Preferred Shares                    Morgan Stanley, Nortel Networks,
                                                                                      UCOM, other shareholders
</TABLE>

 (1) The note and all accrued interest was paid in full in May 1998.


 (2) Financing of capital equipment under a $2.5 million secured line of credit.
     The line of credit has expired. The current outstanding balance is
     $0.9 million at September 30, 1999. The interest rate is 6% above average
     term treasury notes.


 (3) Notes payable, convertible by their terms upon closing of at least
     $10 million in gross proceeds in permanent preferred share financing which
     occurred on September 10, 1999, including interest accrued at 12% per annum
     from December 1998 to March 1999 and 8% per annum from March 1999 through
     September 10, 1999.

    During the second quarter of fiscal 1999, we experienced a shortage of cash.
In December 1998, we obtained a 60 day loan from Nortel Networks for
$1.4 million. On the maturity date in February 1999, we were unable to pay the
principal amount of the note. To remedy the default, we issued Nortel Networks a
warrant to acquire 24,000 common shares at an exercise price of $1.15 per share.
The principal balance of $1.4 million was applied towards a bridge loan and
warrant financing in March 1999. An additional $3.7 million was loaned to us in
this bridge loan and warrant financing in March 1999 by Nortel Networks,
EXCELlink, Mayfield Funds and Morgan Stanley Dean Witter Venture Partners. In
May and June 1999, other preferred investors loaned us $7.6 million in this
bridge loan and warrant financing. Each of our preferred shareholders were given
the opportunity to participate in this financing and, if they participated at a
minimum percentage of their initial investment, they were entitled to exchange
their original preferred shares for shares of series A1, B1, C1, D1, E1, F1 and
G1 whose terms were identical to the original preferred shares except that the
new preferred shares were preferential in liquidation to all original preferred
shares. Approximately 95% of our preferred shareholders participated at least to
their minimum level and received the senior security. In conjunction with these
loans, we issued five year warrants to purchase 6,345,939 common shares of
$0.70 per share. These warrants were valued using the Black-Scholes model at
$5,877,018. See Note 8 to the Consolidated Financial Statements.

    On September 10, 1999 we converted the principal and interest into 1,872,362
Series H1 preferred shares and issued warrants to purchase an additional
253,874 common shares at an exercise price of $1.00 per share to the
participants in the bridge loan and warrant financing. These warrants expire on
September 10, 2002 or upon the consummation of an initial public offering.

    As of September 30, 1999, cash and cash equivalents were $13.0 million. In
November and December 1999, we received $28.0 million in net proceeds from the
sale of additional preferred shares.

    We expect the net proceeds of this offering to be $85.6 million, based on an
assumed offering price of $11.00 and after deducting underwriting discounts and
estimated offering expenses. In addition, as a result of the exercise of
warrants which would otherwise expire on the effectiveness of the offering, we
could receive additional proceeds of up to $15.1 million. We plan to use
$4.5 million of the net proceeds for capital expenditures during fiscal 2000. We
also will use a portion of the net

                                       34
<PAGE>
proceeds to fund increased facility rent of $1.0 million per year beginning in
fiscal 2000. We expect to use the remainder of the net proceeds for general
corporate purposes including moderate increases from prior levels of research
and development and working capital.

    Cash used in operating activities was $1.2 million for the three months
ended September 30, 1999, $13.3 million in 1999, and $21.0 million in 1998.

    Cash used in investing activities was $1.0 million for the three months
ended September 30, 1999, $2.0 million in 1999 primarily for capital equipment
purchases, and cash provided by investing activities was $0.3 million in 1998
resulting from the sale of short term investments partially offset by capital
equipment purchases.

    Cash provided by financing activities was $11.4 million for the three months
ended September 30, 1999, $11.8 million in 1999, and $13.1 million in 1998. Cash
provided by financing activities in 1999 was primarily due to issuances of
convertible notes and warrants while in 1998 cash provided by financing
activities was primarily due to issuances of preferred shares and sale of a
related warrant, partly offset by payments on notes payable to shareholders.

    Our accounts receivable balances have been dominated by large amounts due
from our principal customers who are all large, internationally recognized
corporations. While terms of sale vary from customer to customer, payment
practices of these large corporations have resulted in delays in collection and
our quarterly days sales outstanding was 134 days based on the accounts
receivable as of June 30, 1999. Based on quarterly sales and accounts receivable
as of September 30, 1999 we reduced quarterly days sales outstanding to 109
days. Depending on the mix of sales to U.S. and non-U.S. based customers, and
depending on the mix of terms of sale, our days sales outstanding will fluctuate
from period to period.

    In November 1999 we received a commitment for a $5 million revolving line of
credit from a commercial bank. This credit facility would allow us to borrow up
to 70% of eligible accounts receivable at interest rates equal to the bank
reference rate plus 1.25%. The lender would obtain a security interest in
essentially all of our assets, and advances would be subject to our compliance
with quarterly financial covenants including minimum tangible net worth, minimum
earnings before interest, taxes, depreciation and amortization, and compliance
with selected balance sheet ratios. While the lender has provided a firm
commitment, we cannot be certain that we will execute a loan agreement.

    We have no material commitments other than obligations under our facilities
leases including a lease we entered in December 1999 for our principal
engineering and administrative offices. See Note 11 and Note 15 to the
Consolidated Financial Statements for more information on our facilities leases.
Our future capital requirements will depend upon many factors, including the
timing of research and product development efforts and expansion of our
marketing efforts. We expect to continue to expend significant but smaller
amounts on property and equipment related to the expansion of our facilities,
and on research and development laboratory and test equipment, as the capital
required for volume manufacturing is being committed by our contract
manufacturers. We provide six or twelve month forecasts to our contract
manufacturers. We generally commit to purchase products to be delivered within
the next 60 days covered by these forecasts with cancellation fees. As of
December 27, 1999, we had committed to make purchases totaling $4.8 million from
these manufacturers in the next 60 days. In addition, in specific instances we
may agree to assume liability for limited quantities of specialized components
with lead times beyond this 60-day period.

    In future periods, we generally anticipate significant increases in our
working capital needs on a period-to-period basis primarily as a result of
planned increases in sales and marketing activity. In conjunction with the
expected increases in sales, we expect higher levels of inventory and trade
accounts receivable. While we also expect an increase in trade accounts payable
and other liabilities, we do not expect that they will offset the increases in
inventory and trade accounts receivable.

                                       35
<PAGE>
    We believe that continued substantial investment in research and development
is critical to attaining our strategic product and cost-reduction objectives. We
also expect to expand our field sales and customer support organizations as
customers move from trials to large scale deployments. The growth of our
business and operation as a public company will require additional personnel and
related costs, resulting in increases in our selling, general and administrative
expenses.

    We believe that the net proceeds of this offering, together with our
existing cash balances, will be sufficient to meet our capital requirements at
least through the next 12 months. However, we may need or could elect to seek
additional funding prior to that time. In November 1999, we received a
commitment from a financial institution for a revolving line of credit in the
amount of $5,000,000 for a one year term subject to advances against eligible
accounts receivable. In the event that we need to raise additional funds, we may
not be able to do so on terms favorable to us. Furthermore, if we issue equity
securities, shareholders may experience dilution or the new equity securities
may have rights, preferences and privileges senior to those of existing holders
of common shares. If additional funds are raised through the issuance of debt
securities, such securities would have rights, preferences and privileges senior
to holders of common shares, and the terms. If we cannot raise funds on terms
favorable to us, we may not be able to develop or enhance our products, take
advantage of future opportunities or respond to competitive pressures or
unanticipated requirements. See "Use of Proceeds," "Dilution" and "Management's
Discussion and Analysis of Financial Condition and Results of
Operations--Liquidity and Capital Resources" for more information on our capital
requirements.

YEAR 2000 COMPLIANCE

    Many currently installed computer systems and software products are coded to
accept only two digit entries in the date code field. As a result, software that
records only the last two digits of the calendar year may not be able to
distinguish between 20th and 21st century dates. This may result in software
failures or the creation of erroneous results.

    We have largely completed our year 2000 readiness compliance and tested
current versions of our products and vendor's software. We believe all current
versions of our products are "year 2000 compliant," as defined below, when
configured and used in accordance with the related documentation, and provided
that the underlying operating system of the computer on which our products run
and any other software used with or in the computer on which our products run,
are compliant.

    We define "year 2000 compliant" as the ability to:

    - correctly handle date information needed for the December 31, 1999 to
      January 1, 2000 date change;

    - function according to the product documentation provided for this date
      change, without changes in operation resulting from the advent of a new
      century, assuming correct configuration;

    - if the date elements in interfaces and data storage specify the century,
      store and provide output of date information in ways that are unambiguous
      as to century; and

    - recognize the year 2000 as a leap year.

    We have tested software obtained from third parties that is incorporated
into our products, and we believe that licensed software is year 2000 compliant.
Despite testing by us and by current and potential clients, and assurances from
developers of products incorporated into our products, our products may contain
undetected errors or defects associated with year 2000 date functions. Known or
unknown errors or defects in our products could result in delay or loss of
revenue, diversion of development resources, damage to our reputation, or
increased service and warranty costs, any of which could materially adversely
affect our business, operating results or financial condition. Some industry
analysts have predicted significant litigation regarding year 2000 compliance
issues, and we are aware of such lawsuits against other vendors. Because of the
unprecedented nature of such litigation, it is uncertain whether or to what
extent we may be affected by it.

                                       36
<PAGE>
    We have initiated an assessment of our material internal information
technology systems, including both our own software products and third party
software and hardware technology. We have completed testing and we believe that
we are compliant. If our information technology systems are not year 2000
compliant, we may not have allowed sufficient time for remediation of any
deficiencies. To the extent that we are not able to test the technology provided
by third party vendors, we are seeking assurances from vendors that their
systems are year 2000 compliant. We have completed the inventory/ assessment of
licensed software included in our products and have confirmed that the licensed
software that we incorporate in our products is year 2000 compliant. This
confirmation has been achieved through a combination of internal testing,
vendor's year 2000 Readiness Disclosures, and an ongoing certification program
addressing all of our suppliers and vendors.

    We are not currently aware of any material operational issues or costs
associated with preparing our internal information technology for the year 2000.
Our costs incurred through September 30, 1999, have totaled less than $25,000.
We expect to incur less than $100,000 in costs to complete our year 2000
compliance efforts. However, we may experience material unanticipated problems
and costs caused by undetected errors or defects in the technology used in our
internal information technology systems.

    We do not currently have any information concerning the year 2000 compliance
status of some of our customers. If our current or future customers fail to
achieve year 2000 compliance or if they divert technology expenditures to
address year 2000 compliance problems, our business could suffer.

    We have funded our year 2000 plan from available cash and have not
separately accounted for these costs in the past. To date, these costs have not
been material. We expect to incur additional costs related to the year 2000 plan
for administrative personnel to manage the project, outside contractor
assistance, technical support for our products, product engineering and customer
satisfaction. In addition, we may experience material problems and costs with
year 2000 compliance that could adversely affect our business, results of
operations, and financial condition.

    We have developed and documented contingency plans for business partners
deemed to be at risk. We have also developed contingency plans for all of our
business areas. In addition, we have contingency plans for critical internal
inventory items, hardware and software, used in our internal infrastructure and
our product cycle. These plans have been documented and distributed to
potentially affected users of our systems. The overall cost of developing and
implementing our plan may be material. Finally, we are also subject to external
forces that might generally affect industry and commerce, such as utility or
transportation company year 2000 compliance failures and related service
interruptions.

    We believe our year 2000 worst case scenario would be the failure of a sole
or limited source supplier to be year 2000 compliant. Our failure or the failure
of one of these suppliers to be year 2000 compliant could seriously interrupt
our manufacturing process, thereby substantially reducing our revenues. To date,
we have not experienced any material disruption in our operations as a result of
year 2000 problems, nor have we incurred any unplanned expenses to address year
2000 concerns.

FINANCIAL MARKET RISK

    Our financial market risk includes risks associated with international
operations and related foreign currencies. We anticipate that international
sales will continue to account for a significant portion of our consolidated
revenue. Our international sales are in U.S. dollars and therefore are not
subject to foreign currency exchange risk. Expenses of our international
operations are denominated in each country's local currency and therefore are
subject to foreign currency exchange risk; however, through June 30, 1999, we
have not experienced any significant negative impact on our operations as a
result of fluctuations in foreign currency exchange rates.

                                       37
<PAGE>
                                    BUSINESS

OVERVIEW

    We provide compact wireless communications systems using GSM, an
international standard for voice and data communications. We have pioneered what
we believe is the only commercially available system that provides all of the
infrastructure equipment and software necessary to support an entire wireless
network within a single, compact enclosure. We have designed our systems to
serve the following applications in a cost-effective manner:

    - WIRELESS OFFICES. Our systems allow wireless users in organizations such
      as large corporations, government entities and universities to maintain
      contact with the organization's private telephone network whether the
      users are in their offices, out of their offices or moving between
      locations.

    - COMMUNITY NETWORKS. Our systems enable wireless service providers to add
      capacity in heavy usage areas and to provide telephone service in
      previously unserved communities.

    Our core product, WAVEXpress, delivers a comprehensive set of wireless
network capabilities which are based on the GSM standard. WAVEXpress systems can
serve as:

    - a base station to receive and transmit voice and data signals over radio
      frequencies;

    - a switch to route voice and data signals to their correct destinations;

    - a base station controller to manage voice and data signals between the
      base station and the switch; or

    - any combination of these functions depending on our system's hardware and
      software configuration.

    Our all-in-one solution, the Network In A Box, provides the capabilities of
a complete wireless network in an enclosure approximately the size of a personal
computer tower.

    We market and sell our solutions around the world utilizing a three-pronged
sales strategy which includes selling to communications equipment providers, to
systems integrators which integrate our systems with the products of other
companies and through our own direct sales force. Since 1997 we have sold over
1,000 units which have been installed in 17 countries worldwide. We have
established a strategic alliance with Nortel Networks, which accounted for 51%
of our revenues in 1999 and which owns 22.4% of our outstanding shares, assuming
the exercise of all warrants. We have also recently entered into a strategic
alliance with Alcatel, which included their purchase of 4.3% of our outstanding
shares. These alliances include purchase and distribution agreements through
which both companies will market our products to their customers.

    In addition, in December 1999 we strengthened our strategic alliance with
Hutchison Telecommunications Group, which included the purchase by Holodeck
Limited, an affiliate of Hutchison Telecommunications Group, of 2 million
preferred shares at $8.00 per share, increasing their ownership to 7.2% of our
outstanding shares. We have also signed contracts with affiliates of Hutchison
Telecommunications Group to sell our products in Hong Kong and Sri Lanka.

INDUSTRY

RAPID GROWTH FOR MOBILE WIRELESS COMMUNICATIONS

    In recent years, worldwide demand for mobile wireless communications has
increased dramatically. According to International Data Corporation, the
worldwide wireless market is expected to grow from 303 million users in 1998 to
approximately 1.1 billion by 2003, a compounded annual growth rate of
approximately 29%. This rapid growth has been driven by the increasing
availability, functionality and affordability of wireless products and services.
The market for our systems is a subset of the worldwide wireless market. Since
the market for our systems is new and emerging, industry analysts have not
compiled reliable data about the size or growth rate of our target markets. Our
growth rate and the

                                       38
<PAGE>
growth rate of our target markets may not match the growth rate of worldwide
wireless markets in general.

    Changes in the worldwide regulatory environment, including the elimination
of monopolies for public communications services, privatization of
government-owned communications organizations and competitive licensing of radio
frequency spectrum by regulatory authorities, have led to an increase in the
number of communications service providers seeking to meet the rapidly growing
demand for mobile wireless communications. In Europe, for example, recent
European Union directives prohibit member countries from restricting competitive
access to mobile and local service after January 1, 1998. In the United States,
the Telecommunications Act of 1996 opened local telephone networks to new
competition. Similar trends in developing countries are creating significant
opportunities for new entrants in the communications market. This increasingly
competitive environment is rapidly driving down the prices that end-users pay
for services.

COMMUNICATIONS EQUIPMENT MARKET

    Wireless service providers are investing in expanding and upgrading their
networks to add capacity and keep pace with the demand for value-added services.
These investments are being driven by increased competition, strong subscriber
growth and new product innovation. Such investments enable wireless service
providers to extend geographic coverage, improve call quality, and deliver
enhanced features and services. Despite reductions in the cost of communications
equipment, service providers' capital budgets have continued to increase
substantially. According to Dataquest, the digital wireless communications
equipment market is expected to grow from approximately $31 billion in 1998 to
over $41 billion by the end of 2002. The market for our systems is a subset of
the digital wireless communications equipment market. Currently, there is no
reliable data about the size or growth rate of our target markets. Growth rates
experienced by the industry as a whole may not reflect growth rates that we, or
our target markets, will experience. In addition, recessionary conditions in
Asia have resulted in reduced demand for wireless communications systems.

GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS STANDARD

    The GSM standard competes primarily with the code division multiple access
standard, or CDMA, the time division multiple access standard, or TDMA, and
analog standards. According to The Comprehensive Guide to Wireless Technologies,
an industry guide, all of the digital standards, including GSM, CDMA and TDMA,
offer clearer voice communications than the older analog standards. We believe
that digital standards will attract even more users in the future as functions
such as high-speed data communications become available. In addition to clearer
voice communications, the digital standards offer features not available with
analog standards. For example, GSM, CDMA and TDMA allow users to receive text
messages. Furthermore, the GSM standard allows users to roam across
international boundaries without an interruption in service. The TDMA and CDMA
standards do not allow this international roaming capability because those
phones do not have a removable personal identity card, which can be inserted in
phones using the local frequency range. Finally, CDMA does not have a maximum
number of calls it can handle at a given time. CDMA can accommodate additional
calls only by slightly degrading the quality of all ongoing calls. GSM and TDMA,
however, cannot expand the maximum number of calls to accommodate surges in
demand.

    According to International Data Corporation, GSM is the world's most widely
accepted digital wireless standard with 132 million users in 1998 and is
projected to grow to 556 million users by 2003. In 1998, GSM accounted for
approximately 44% of the world wireless market while CDMA, TDMA and analog
accounted for 8%, 6% and 31% of the world market, respectively. GSM is the
dominant standard in Europe as a result of the European Union's decision to
endorse a single unifying digital standard in the 1980s. In Asia, the rate of
acceptance of the GSM standard is growing rapidly as wireless service providers
have selected GSM to offer differentiated services and to increase capacity. On
November 1, 1999, the GSM Association and the Universal Wireless Communications
Consortium,

                                       39
<PAGE>
the governing bodies of the GSM and TDMA standards, respectively, announced an
agreement to jointly develop standards that enable GSM and TDMA systems to
operate together. International standards organizations are also working to
develop the future standard that will replace all three of these technologies.

    Early in the history of the wireless market, analog standards achieved a
strong presence in the United States while the GSM standard was being adopted in
Europe. According to Allied Business Intelligence, Inc., at the end of 1998
there were 3 million GSM users in the United States, which represented 4.3% of
all wireless users in the United States. Today, although the acceptance of the
GSM standard in North America is in its early stages, increased penetration of
the GSM standard is being driven by its ability to support international
roaming, and will be further driven by its advanced data transmission and
messaging capabilities. GSM has been adopted in North America by communications
service providers, including Microcell, OmniPoint, PacBell and VoiceStream. Both
CDMA and TDMA have a significant presence in the United States. Sprint PCS and
GTE have deployed CDMA and AT&T Wireless has deployed TDMA in the United States.

FUTURE WIRELESS STANDARD

    An international consortium of standards bodies is working to establish the
specifications of a future wireless standard, often referred to as the third
generation wireless standard, and to ensure its interoperability with existing
network standards. Since the installed base of wireless networks was not
designed to be interoperable with what we expect will be the future standard,
significant capital expenditures will be required to update them. We believe
wireless service providers will attempt to preserve their previous investments
in infrastructure and will seek incremental solutions that will facilitate
upgrading to the future wireless standard while ensuring interoperability among
disparate networks. Industry analysts expect the future standard to use the
Internet Protocol to enable high speed data transmissions over wireless
networks. The Internet Protocol is the networking standard used to communicate
voice and data across the Internet. Using the Internet Protocol for wireless
network access would provide potential cost-savings for wireless service
providers by allowing them to use the existing Internet infrastructure. We
expect these developments will increase the demand for cost-effective, flexible,
wireless networks that can be easily upgraded to the emerging future standard.

KEY DEVELOPING MARKET OPPORTUNITIES

    Rapid technological innovation in wireless communications is creating new
and varied market opportunities.

    WIRELESS OFFICES.  Wireless office networks combine the mobility and
flexibility of wireless communications with all of the features of traditional
telephone networks, and enable organizations such as large corporations,
government entities and universities to integrate their private office networks
with public wireless networks. This integration enables abbreviated dialing
while the user remains within the private office network. After the user leaves
the office building, incoming calls are routed to the user's mobile phone via
the public wireless network. Wireless office networks can increase productivity
by making it possible to reach employees through a single phone number at all
times, regardless of location, while providing significant cost savings for the
organization. The wireless office market enables wireless service providers to
expand their customer base, reduce subscriber turnover, provide customized
billing and establish a presence from which to offer wireless data networks. The
Yankee Group estimates the market for GSM wireless office networks will be
10.9 million distinct phone lines in 2002 in the European corporate market
alone. GSM wireless office networks compete with a digital European cordless
telephone standard known as DECT. In 1998, DECT had an installed base of
1.6 million wireless office lines in Europe compared to 410,000 for GSM.
However, unlike GSM, the DECT standard does not permit roaming outside the
office premises. While some handset vendors either offer or are considering
offering phones that support both DECT and GSM, the Yankee Group expects a
limited market for such a product for both

                                       40
<PAGE>
technical and economic reasons. The Yankee Group estimates the European market
for DECT wireless office networks will be 4.7 million wireless office lines in
2002.

    COMMUNITY NETWORKS.  Community networks enable the introduction of wireless
service to areas that are currently not served by wireless providers or that may
not have any telephone service. Wireless solutions such as wireless local loop
networks offer the most cost-effective way to provide telephone service to areas
with no current service. Wireless local loop networks are wireless
communications systems that connect users to the public telephone network using
radio signals as a substitute for traditional telephone connections. These
markets offer substantial growth potential due to the relatively low level of
rural and remote telephone service penetration and the continued need for
low-cost communications services. According to Frost & Sullivan, the wireless
local loop market is expected to grow from approximately $4.6 billion in 1998 to
$16.5 billion in 2002. Wireless solutions provide a high-value proposition in
developing countries since these solutions are generally less expensive than
establishing a traditional telephone infrastructure, according to Frost &
Sullivan. To succeed in the community networks market, we believe wireless
service providers need to employ network systems that minimize initial capital
expenditures while providing the flexibility to scale cost-effectively as demand
grows. In addition, wireless service providers need to minimize ongoing
operating costs, the largest of which are the charges associated with routing
calls through a central switch, where traditionally all calls are processed.

PRIMARY OBJECTIVES OF THE WIRELESS SERVICE PROVIDER

    To better serve their existing user base and to gain market share, wireless
service providers are focused on the following primary objectives:

    COST-EFFECTIVE NETWORK DEPLOYMENT.  The deployment of traditional wireless
networks requires significant capital expenditures. A typical wireless network
consists of a switch to route voice and data signals to their correct
destinations, multiple base station controllers to aggregate and manage voice
and data signals between the switch and the base station and many base stations
to transmit and receive voice and data signals over radio frequencies. Wireless
networks are typically designed to support large user bases. Service providers
need cost-effective ways to address smaller user bases. As service providers
face increasing price competition, they will depend on communications equipment
providers for cost-effective and technologically advanced infrastructure
systems.

    EXTENSION OF COVERAGE.  In the past, wireless networks have been deployed
primarily in urban centers and other heavy usage areas. Increasing demand for
improved service over wider geographic areas has prompted wireless service
providers to accelerate the expansion of their networks. In addition, wireless
service providers are deploying networks in locations where service has
previously been inadequate or prohibitively expensive to provide.

    IMPROVED QUALITY OF SERVICE.  Currently, wireless networks in metropolitan
areas are prone to a lower quality of service when heavy usage causes capacity
limits to be exceeded. Furthermore, wireless service in buildings, tunnels and
subways is often interrupted or unavailable. Similarly, wireless services in
remote areas are often limited due to the lack of a fully-developed wireless
infrastructure. Improving the quality of wireless service involves increasing
network capacity and capabilities to address current network constraints.

    VALUE-ADDED SERVICES.  The extreme competition faced by wireless service
providers requires them to offer differentiated, value-added services including
the ability to roam across regional, national and international boundaries
without an interruption in service, access to high-speed data transmission and
other features such as voicemail and caller ID. In order to address increasing
competitive pressures, wireless service providers must use flexible systems that
enable them to deploy numerous services in a timely and cost-efficient manner.

    As wireless service providers seek to achieve these objectives in an
extremely competitive market, they will increasingly require communications
equipment providers to develop wireless network

                                       41
<PAGE>
solutions that enable the flexible, cost-effective delivery of value-added
services and that are capable of being easily adapted to the future wireless
standard.

THE INTERWAVE SOLUTION

    Our systems offer a number of important advantages to GSM service providers,
including:

COMPACT, FLEXIBLE AND MODULAR

    Our WAVEXpress products provide a comprehensive set of GSM network
capabilities. We believe that we provide the only commercially available system
that supports an entire GSM network within a single enclosure approximately the
size of a personal computer tower. The WAVEXpress system can serve as a base
station, base station controller, switch or any combination of these functions
depending on our system's hardware and software configuration. The WAVEXpress
product uses only four hardware modules which enables the system to be updated
and enhanced by simply exchanging specific hardware modules and upgrading
software. Our compact and modular system enables wireless service providers to
implement wireless office networks, to fill in coverage blind spots, to increase
capacity in heavy usage areas and to provide service to previously unserved
areas.

COST-EFFECTIVE NETWORK DEPLOYMENT AND OPERATION

    Our compact, flexible systems reduce both initial and incremental capital
expenditures for network deployment by wireless service providers. The flexible
nature of our products enable wireless service providers to rapidly add capacity
to their networks in a cost-effective manner. In addition, there are only four
WAVEXpress hardware modules, which result in reduced maintenance and training
costs, and a reduction in capital necessary to maintain spare parts in
inventory. Furthermore, we have a patented switch technology that allows the
network to determine whether a call should be directed to its destination by the
local network or by a central switch. This proprietary switch capability allows
a wireless service provider to reduce its dependence on the central switch and
increase network efficiency, resulting in lower operating costs.

INTEROPERABILITY WITH EXISTING GSM NETWORKS

    We maintain strict adherence to GSM standards to ensure that our systems are
compatible with other communications equipment providers' products. We have
proven our systems' interoperability in live networks with equipment from all
major communications equipment providers, including Alcatel, Ericsson, Lucent,
Nokia, Nortel Networks and Siemens. Our systems are also compatible with
existing private telephone systems. Interoperability enables wireless service
providers to upgrade their existing systems without having to replace their
entire network, facilitating the introduction of new capabilities and services
in a timely and cost-effective manner. We plan to maintain our systems'
interoperability despite changes to software, equipment configuration, network
design and upgrades to the various network standards.

RAPID TIME-TO-MARKET FOR NEW, VALUE-ADDED SERVICES

    Service providers using our wireless network systems can achieve rapid
time-to-market for new services which they can offer to new and existing users.
Our flexible design enables the system to be readily upgraded through simple
hardware additions and software reconfigurations. These features allow service
providers to decrease the implementation time required to offer new services to
customers. Our WAVEView products also allow for the control of all functions and
components of the network through a single management system. This enables
service providers to customize and expand service offerings to users without
deploying additional systems that require incremental training and testing. Our
expandable systems provide small, low-cost alternatives to expensive digital
communications infrastructure equipment. Furthermore, since our systems are
based on the Internet Protocol, we believe wireless service providers will be
able to easily adapt to the future wireless

                                       42
<PAGE>
standard through simple software upgrades or specific hardware replacements,
instead of time-consuming deployment of and costly investment in new network
equipment.

STRATEGY

    Our goal is to be the premier global provider of cost-effective, compact
wireless systems in targeted segments of the GSM market. The key elements of our
strategy include:

PROVIDE GSM WIRELESS OFFICE SYSTEMS

    We intend to provide cost-effective network systems for large organizations
such as corporations, universities and government entities. We have developed a
wireless office system that can function as a stand-alone network or as an
add-on to a new or existing network. Our system, and specifically our switch
technology, reduces costs for an organization by allowing a user's calls to any
campus to stay inside the organization's network. Nortel Networks and Alcatel
are actively marketing our wireless office system.

DELIVER FUTURE SOLUTIONS USING THE INTERNET PROTOCOL

    Our research and development efforts are focused on using our WAVEXpress
products to offer voice and data communications over the Internet. We plan to
capitalize on the flexibility of our system design to speed our customers'
transition to the emerging future standard once its specifications are
finalized. Our fully-functional, GSM voice communications system that uses the
Internet Protocol was demonstrated at the February 1999 GSM World Congress. We
expect this system to be commercially available in early 2000.

FURTHER PENETRATE EXISTING MARKET OPPORTUNITIES

    To date, our sales have been predominantly to wireless service providers
seeking to fill gaps in coverage, to increase capacity in heavy usage areas and
to provide wireless service to previously unserved areas. We believe that these
applications will continue to represent a significant market opportunity for our
systems. As our customers expand their networks, we plan to generate additional
orders. We intend to convert existing trials into large-scale commercial
deployments. Currently, we are involved in 16 trials in nine countries. We also
believe that our visibility as an early provider of network solutions that use
the Internet Protocol will lead to new deployments with new and existing
customers. For example, Alcatel will integrate our products that use the
Internet Protocol with their corporate office networking products and market
them through their enterprise solutions division.

STRENGTHEN AND EXPAND RELATIONSHIPS WITH COMMUNICATIONS EQUIPMENT PROVIDERS

    We intend to use our strategic relationships with communications equipment
providers such as Nortel Networks, Alcatel and Sagem to expand our geographic
coverage and increase the market share for our solutions. Our relationships with
these equipment providers allow us to benefit from their sales forces selling
our products and enable us to reach new customers and strengthen our position
with existing customers. Communications equipment providers bundle our solutions
with their products to address the needs of wireless service providers. Our
sales are also enhanced by equipment providers' abilities to offer service and
support for our systems. We believe that strengthening these relationships and
selectively establishing new relationships will help us to generate new sales.

USE TECHNOLOGICAL LEADERSHIP TO PROVIDE COMPETITIVE ADVANTAGES FOR WIRELESS
  SERVICE PROVIDERS

    We intend to use our leading-edge technology and intellectual property to
expand the capabilities of our network systems, streamline system upgrades and
simplify the purchasing process. Furthermore, we intend to update our equipment
to use the latest generation Power PC processor which will provide significantly
more processing power and enhance the service providers' ability to handle heavy
data usage. Upcoming enhancements to our systems include the implementation of a
Web-based system to manage wireless networks, which will provide all monitoring,
configuration and maintenance

                                       43
<PAGE>
capabilities. This will enable rapid emergency response and enhance overall
system management. Further, our system will be upgraded to use the latest
generation PowerPC processor, giving our systems significantly more processing
power to enhance service providers' ability to handle heavy data usage. Finally,
we intend to develop a Web-based system to enable service providers to configure
and purchase our solutions online, streamlining the purchasing process and
reducing related purchasing costs.

PRODUCT LINES

    We operate in a single business segment, the manufacture and sale of
compact, wireless communication systems. We have two product lines, WAVEXpress
and WAVEView.

    [A diagram of our WAVEXpress Network In A Box Configuration. The first
caption points to the base station controller. The second caption points to the
switch. The third caption points to the base station. There is a Note below
which states "Our WAVEXpress products use the same compact enclosure. The
hardware and software configuration varies based on the users' requirements."]

                                       44
<PAGE>
                                       45
<PAGE>
WAVEXPRESS

    Our core WAVEXpress product can house any combination of our switch, our
base station controller and our base station in a single compact enclosure. The
WAVEXpress system is approximately the size of a personal computer tower and
weighs less than 50 pounds. Our WAVEXpress product line represented 80% and 88%
of our net revenues for fiscal year 1999 and the three months ending
September 30, 1999, respectively.

    WAVEXCHANGE.  The WAVEXchange is a wireless switch that routes calls and is
designed to allow the network to process calls locally rather than at a central
switch, thereby reducing operating costs. The small size and configurability of
the WAVEXchange enable wireless service providers to deploy value-added services
rapidly. The WAVEXchange can be integrated with existing private telephone
networks. The WAVEXchange is the only GSM switch on the market that can act
either as a base station controller extension of a central switch or as a local
switch, on a call-by-call basis. The WAVEXchange uses standard GSM interfaces
and can be configured with up to 16 connections that support up to 4,000 users,
depending on the requirements of the network. We began shipping WAVEXchange
products in June 1998.

    WAVEXPRESS/BSC.  The WAVEXpress/BSC is a compact base station controller
that aggregates and manages the communications between the WAVEXpress/BTS and
the central switch or a local WAVEXchange switch. The wall-mountable
WAVEXpress/BSC, one of the smallest GSM base station controllers on the market,
connects to any central switch supporting the GSM standard. The WAVEXpress can
be configured with up to 16 connections depending on the requirements of the
network. We began shipping the WAVEXpress/BSC in December 1996.

    WAVEXPRESS/BTS AND TURBOWAVE/BTS.  The WAVEXpress/BTS is a base station
which accommodates up to three radios providing up to 22 simultaneous
communication channels. Versions of the WAVEXpress/BTS are available in all
three GSM frequency bands: 900 MHz and 1800 MHz for Europe and Asia and 1900 MHz
for the Americas. The WAVEXpress/BTS connects the user to the network with no
need for additional components. In addition, we offer a higher powered version
of the WAVEXpress/BTS, the TurboWAVE, which is available in two configurations.
The TurboWAVE offers broader geographic coverage with over 20 kilometers of
range. In covering a longer range, the TurboWAVE offers the service provider
benefits from increased coverage, greater reduction in transmission costs and
lower infrastructure costs per user. We began shipping the WAVEXpress/BTS in
December 1996 and the TurboWAVE/BTS in December 1997.

    NETWORK IN A BOX.  The Network In A Box offers the ability to support a
complete GSM network by integrating the switch, base station controller and base
station in a single WAVEXpress unit. The Network In A Box is designed for rapid
deployment and provides easy network expansion as usage and coverage
requirements increase. Ideally suited for wireless office networks, the Network
In A Box can support a stand-alone GSM network or it can integrate with most
private telephone networks to provide wireless GSM interoperability with a
corporate telephone network. We have a patented switch technology which allows a
single Network In A Box to act as a wireless extension to a private telephone
network and as an extension to a public wireless network on a call-by-call
basis. In remote and rural communities, the Network In A Box enables rapid
deployment of GSM capabilities. Since a high percentage of calls stay within the
local network, transmission costs to a central switch are minimized. Coverage
and capacity can be increased quickly and easily by adding WAVEXpress/BTS and
WAVEXpress/BSC units to the network. The Network In A Box can also serve as a
cost-efficient GSM starter network allowing wireless service providers to match
their infrastructure expenditures to usage growth. We began shipping the Network
In A Box in August 1998.

    WAVEXPRESS/BS PLUS.  The WAVEXpress/BS Plus combines the functions of a base
station controller and base station in a single product. A WAVEXpress/BS Plus
can support up to 600 users and up to three external WAVEXpress/BTS base
stations to serve up to 2,400 users.

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<PAGE>
WAVEVIEW

    WAVEVIEW.  The WAVEView is a management system for wireless service network
components. Our system simplifies the process of deploying new network
components, allowing the user to manage all aspects of wireless user profiles.
The WAVEView also allows wireless service providers to monitor network faults in
real-time and includes a comprehensive help function that guides users through
management tasks. We began shipping WAVEView in May 1998. Our WAVEView product
line represented 8% and 6% of our net revenue for fiscal year 1999 and the three
months ending September 30, 1999, respectively.

<TABLE>
    PRODUCT NAME                    FUNCTION                        PRODUCT FEATURES
- ---------------------------------------------------------------------------------------------
<S>                    <C>                                 <C>
WAVEXchange            Wireless switch that routes         -  Small size, low price per user
                       telephone calls through the GSM     -  Design allows capacity to be
                       network and can also act as a base     increased by adding components
                       station controller                  -  Can accomodate up to 4,000
                                                              users
WAVEXpress/BSC         Base station controller that        -  Supports up to 16 connections
                       supports up to 30 base stations,
                       depending on the configuration
WAVEXpress/BTS         Base station that supports the      -  Accommodates up to three radios
                       radio interface between wireless       and 22 channels
                       phones and the rest of the network
TurboWAVE/BTS          A WAVEXpress/BTS with high-         -  Extends range to over 20
                       powered radio transmitters             kilometers
</TABLE>

                                       47
<PAGE>

<TABLE>
    PRODUCT NAME                    FUNCTION                        PRODUCT FEATURES
- ---------------------------------------------------------------------------------------------
<S>                    <C>                                 <C>
Network In A Box       All-in-one wireless network that    -  Incorporates all of the
                       includes the switch, base station   functionality of the WAVEXchange,
                       control and base station functions     WAVEXpress/BSC and
                       in a single enclosure                  WAVEXpress/BTS in a single
                                                              enclosure
                                                           -  Supports up to two radios and
                                                           500 users
WAVEView               Management system that manages      -  Operates on a standard UNIX
                       multiple base stations, base           system with multiple system
                       station controllers and switches       administrators. UNIX is a
                                                              standard computer operating
                                                              system used for technical
                                                              applications worldwide.
                                                           -  Supports remote connections and
                                                              dial-in access
</TABLE>

APPLICATIONS OF OUR NETWORK SYSTEMS

    Our network systems allow wireless service providers to expand capacity and
coverage on a permanent or emergency basis, to operate wireless office networks
and to provide service to remote and rural areas. The following case studies
show how our network solutions have been implemented to create value for
wireless service providers:

<TABLE>
<S>                                            <C>
WIRELESS OFFICE NETWORK
    PROBLEM:                                   Employees spend little time in offices and
                                               have difficulty staying in contact as they
                                               travel between campus sites. Corporation
                                               wants to provide abbreviated dialing and
                                               other services over a wireless network, with
                                               access to the public network
    INTERWAVE SOLUTION:                        Network In A Box, WAVEView
    VALUE PROPOSITION:                         -  increase user base and overall minutes of
                                                  use
                                               -  centralize management of telephone,
                                               wireless and data networks
                                               -  switch calls at local network level to
                                               reduce transmission costs
                                               -  create different rate structure from main
                                                  network
                                               -  employees can have same phone number at
                                                  work and home
</TABLE>

                                       48
<PAGE>

<TABLE>
<S>                                            <C>
COMMUNITY NETWORKS

    Fill-in Capacity Coverage
    PROBLEM:                                   Need to provide wireless service in the
                                               subways in Beijing

    INTERWAVE SOLUTION:                        WAVEXpress/BTS, WAVEXpress/BSC, WAVEView

    VALUE PROPOSITION:                         -  increase existing customer usage

                                               -  improve network coverage

                                               -  improve network quality

                                               -  small size and ease of installation

    Mobile, Temporary Capacity Expansion
    PROBLEM:                                   Wireless service provider wants to deliver
                                               service to natural disaster area to aid
                                               relief efforts

    INTERWAVE SOLUTION:                        Network In A Box, WAVEView

    VALUE PROPOSITION:                         -  enhance humanitarian relief efforts

                                               -  increase customer usage

                                               -  generate additional roaming revenue

    Rural and Remote Services

    PROBLEM:                                   Wireless service provider wants to establish
                                               cost-effective communications service to
                                               rural regions in the Democratic Republic of
                                               Congo

    INTERWAVE SOLUTION:                        WAVEXpress/BTS, WAVEXpress/BSC, WAVEXchange,
                                               WAVEView

    VALUE PROPOSITION:                         -  provide basic telephone services in the
                                                  Democratic Republic of Congo

                                               -  minimize initial capital investment

                                               -  allow service provider to add capacity in
                                               a cost-effective manner as user base grows

                                               -  switch calls at local network level to
                                               reduce transmission cost
</TABLE>

                                       49
<PAGE>
CUSTOMERS

    We have developed relationships with communications equipment providers,
systems integrators and wireless service providers. The following table
identifies our customers, the applications of our products and the intended end
users of communications networks employing our products. For the fiscal year
ended June 30, 1999, 51% of our revenues were derived from sales to Nortel
Networks and 20% of our revenues were derived from sales to ADC
Telecommunications. The other customers listed in the table each represented
less than 10% of our revenues for the fiscal year ended June 30, 1999.

<TABLE>
                 CUSTOMER                          APPLICATION                 END USERS
- ------------------------------------------------------------------------------------------------
<S>                                         <C>                        <C>
COMMUNICATIONS EQUIPMENT PROVIDERS:

Nortel Networks                             - Rural and remote         - Wireless users in
                                              community networks         developing countries

                                            - Wireless office          - Large organizations
                                              networks

Alcatel(1)                                  - Wireless office          - Large organizations
                                              networks

Sagem(1)                                    - Specialized mobile       - Large organizations and
                                              radio                      military personnel

SYSTEMS INTEGRATORS:

Microcellular Systems(2)                    - Fill-in capacity         - Subway passengers in
                                                                         Beijing

HangZhou Topper Electric Corporation        - Mobile, temporary        - Dislocated people and
                                              capacity expansion         emergency workers in
                                                                         disaster areas

WIRELESS SERVICE PROVIDERS:

Hutchison Telecommunications Group          - Fill-in capacity         - Wireless users in
                                                                         Hong Kong

Total Access Communications                 - Fill-in capacity         - Wireless users in
                                                                         Bangkok
</TABLE>

(1) Currently engaged in testing of our products for incorporation into
    networks.

(2) Created by a spin-off from ADC Telecommunications in May 1999.

SALES AND MARKETING

    We market and sell our solutions around the world utilizing a three-pronged
sales strategy which includes selling to communications equipment providers, to
systems integrators that integrate our systems with the products of other
companies and through our own direct sales force.

    We currently have 29 systems which are deployed in networks in Australia,
Austria, Central African Republic, China, Democratic Republic of Congo, France,
Gambia, Greece, Italy, Japan, Kosovo, Somalia, Taiwan, Tajikistan, Thailand, the
United Kingdom and the United States. We also have 16 trial systems located in
networks in Australia, China, France, Germany, South Africa, Sri Lanka, Taiwan,
the United Kingdom and the United States. We have provided additional
information about the geographic segments in which we operate in Note 14 to our
Consolidated Financial Statements.

                                       50
<PAGE>
COMMUNICATIONS EQUIPMENT PROVIDERS

    NORTEL NETWORKS.  In March 1998, we entered into a five-year purchase and
distribution agreement with Nortel Networks. According to the terms of the
agreement, Nortel Networks has agreed to minimum purchase commitments of our
products on a quarterly basis through December 2000. The agreement requires that
we provide certain product features by various milestone dates. In addition, the
agreement precludes us from entering into similar agreements with Ericsson and
Nokia until December 31, 1999. After December 31, 1999, the restriction may be
terminated if the annual purchases by Nortel Networks in the calendar years
2000, 2001, or 2002 is less than 80% of their established minimum amounts.

    The agreement was amended in April 1999 with respect to Nortel Networks'
obligations to meet specific quarterly purchase commitments and to specify our
requirements to meet certain product development milestones that are important
to Nortel Networks. In the first six quarters since the original agreement was
executed, Nortel Networks has purchased over $12 million of our products.

    The agreement with Nortel Networks is one of a number of agreements executed
as part of a strategic alliance between our two companies. We also entered into
a patent license agreement whereby we acquired a license to certain patents held
by Nortel Networks and a technical information agreement whereby services for
systems testing facilities and equipment are provided. We have entered into a
number of financing transactions with Nortel Networks. Nortel Networks has made
an aggregate investment of $29.5 million in our company consisting of
$25.0 million in cash and delivery of license and technical information
agreements valued at $4.5 million. Assuming the exercise of all warrants held by
Nortel Networks, they own approximately 22.4% of our outstanding shares and will
own approximately 18.5% of our outstanding shares following the offering. See
"Certain Transactions".

    ALCATEL.  In July 1998, we entered into a two-year, non-exclusive purchase
and distribution agreement with Alcatel CIT. This agreement targeted specific
wireless service providers located in Western Europe where Alcatel CIT has a
significant supplier presence. Through September 30, 1999, Alcatel CIT had
purchased approximately $1.3 million of our products for initial testing along
with training and support services. In November 1999, we entered into a new
two-year, non-exclusive purchase and distribution agreement with Alcatel
Business Systems. Under this agreement, Alcatel Business Systems will integrate
our products, including those that use the Internet Protocol, with their
corporate office networking products and market them through their enterprise
solutions division. Alcatel Business Systems will provide us with $450,000 in
engineering funds. Alcatel Business Systems, which has made minimum purchase
commitments through December 2001 under the agreement, intends to resell our
products primarily to their corporate office customers. Under the agreement, we
agree to modify our products to contain certain features by various milestone
dates. In November 1999, Alcatel invested approximately $12.2 million in our
company by purchasing for cash approximately 1.5 million preferred shares at
$8.00 per share. As a result, Alcatel currently owns approximately 4.3% of our
outstanding shares.

    Our purchase and distribution agreements with Nortel Networks and Alcatel
provide that those companies will receive our lowest price for the volume of
products that they purchase from us. In both agreements, we have product
development obligations. If we do not meet these obligations, the quarterly
purchase commitments from these customers may be lowered or removed entirely. In
the past, we have missed product development milestones, resulting in decreases
in quarterly revenue obligations from Nortel Networks. See "Certain
Transactions--Series G Preferred Financing, Purchase and Distribution Agreement"
and "Certain Transactions--Series I1 Preferred Share Financing, Purchase and
Distribution Agreement."

    SAGEM.  In February 1999, we entered into a five-year, non-exclusive
purchase and distribution agreement with Sagem, S.A. Through September 1999,
Sagem had purchased approximately $500,000

                                       49
<PAGE>
of our products for internal testing and sales demonstration. Sagem is not
currently obligated to meet any minimum volume purchase commitments.

SYSTEMS INTEGRATORS

    ADC TELECOMMUNICATIONS/MICROCELLULAR SYSTEMS.  In early 1997, we entered a
four-year, non-exclusive distribution agreement with ADC Telecommunications,
which led to nearly $9.8 million in revenue between 1997 and early 1999. In
May 1999, ADC Telecommunications assigned the agreement to Microcellular
Systems, a company started by former ADC Telecommunications mobile systems
division employees. Microcellular Systems, headquartered in the U.K., is
targeted at providing systems integration and service/support to specific key
wireless service providers in Western Europe. Microcellular Systems accounted
for $1.1 million of our revenue representing 21% of our net revenue for the
three months ended September 30, 1999. Microcellular Systems is not currently
obligated to meet any minimum volume purchase commitments. ADC
Telecommunications also provided us with development support and testing
services. Between July 1998 and March 1999, we worked closely with the company
to jointly develop products for the North American market. In conjunction with
this activity, ADC Telecommunications acquired 360,000 of our preferred shares
in exchange for development services valued at approximately $2.5 million. This
agreement concluded in May 1999.

    HANGZHOU TOPPER ELECTRIC CORPORATION.  In June 1999, we began selling our
products in China through HangZhou Topper Electric, a private company
incorporated in China. We have sold $2.5 million of our products to HangZhou
Topper Electric through September 30, 1999. Sales to HangZhou Topper Electric
represented 38% of our revenues in the three months ended September 30, 1999. We
intend to enter into a joint venture agreement with HangZhou Topper Electric
whereby the joint venture will manufacture our products for the China market, as
well as develop new products. HangZhou Topper Electric is not currently
obligated to meet any minimum volume purchase commitments.

DIRECT SALES

    We established a direct sales presence in Hong Kong in late 1995 and in
Paris in mid-1996. As a result, we have established a five-year cooperation
agreement with Telstra, headquartered in Australia, and a multi-year cooperation
agreement with France Telecom, headquartered in Paris, providing us with
information sharing opportunities with them. Through two GSM wireless service
providers, Hutchison Telecommunications Group, a unit of Hutchison Whampoa, and
Total Access Communications, a subsidiary of UCOM Group of Thailand, we have
deployed our network solutions in Hong Kong and Bangkok, respectively.

    HUTCHISON TELECOMMUNICATIONS GROUP.  We began deploying our products in Hong
Kong with Hutchison Telecommunications Group in 1997. In December 1999, we
executed a contract with an affiliate of Hutchison Telecommunications Group to
deploy our products in Sri Lanka. In addition, Holodeck Limited, an affiliate of
Hutchison Telecommunications Group and a wholly-owned subsidiary of Hutchison
Whampoa, purchased for cash 2 million preferred shares at $8.00 per share. As a
result, Holodeck Limited increased its beneficial ownership to 2.6 million
shares, or 7.2% of our outstanding shares, and will hold 5.8% of our outstanding
shares on completion of this offering. See "Certain Transactions--Series I1
Preferred Share Financing."

    In connection with our contract with an affiliate of Hutchison
Telecommunications Group to sell our products in Sri Lanka, we entered into an
exclusivity agreement in which we agreed not to sell our WAVEXchange and
WAVExpress products to any party in Sri Lanka other than Hutchison's affiliate
for a period of three years. This period will be extended two years if at the
end of the three year period Hutchison's affiliate has ordered equipment in the
aggregate value of $15 million. In this agreement, we also agreed not to sell
these products to any party in Mumbai, India until March 31, 2000. If by that
date Hutchison or its affiliate has placed an order for the products in the
aggregate

                                       50
<PAGE>
value of $6 million, we will not supply these products to any third party for
three years. This period will be extended two years if at the end of the three
year period Hutchison or its affiliate has placed an order in an aggregate value
of $15 million.

CUSTOMER SUPPORT--CUSTOMER ADVOCACY/ENGINEERING SERVICES

    Our support organization provides pre-sale, installation and post-sale
support to wireless service providers who have purchased systems directly from
us. We offer 24-hour telephone support seven days a week. We provide manuals and
extensive training to support their deployment and operation of our systems. We
offer an ongoing maintenance program for our products, which consists of product
enhancements, product updates and technical support. System operators may renew
maintenance and support on an annual basis by paying a maintenance fee. We also
provide extensive support to communication equipment providers and systems
integrators through product training, 24-hour help-desk support and emergency
problem resolution. In addition, we work closely with their first-line support
organizations to insure that they have the necessary skills and specific product
knowledge to assist their customers with installation, management and other
network support requirements.

RESEARCH AND DEVELOPMENT

    To maintain our technology leadership position, we focus our research and
development efforts on improving the functionality and performance of our
current products and developing new products. We obtain extensive development
input from our customers and actively monitor changes in the marketplace. We are
currently investing significant resources to:

    - develop high-speed data capabilities while significantly reducing
      manufacturing costs;

    - expand the capacity of our base station;

    - modify our WAVEView management system to adapt to the Internet Protocol;
      and

    - deliver product enhancements that allow communications equipment providers
      to offer additional value-added services required by wireless service
      providers.

    We believe our future success will depend, in part, on our ability to
continue to develop and introduce new products and enhancements to our existing
products. Our research and development expenditures totaled approximately
$14.2 million, $15.3 million and $14.2 million in the fiscal years ended
June 30, 1997, 1998 and 1999, respectively.

    We perform our research and product development activities in our Redwood
City and Hong Kong offices. As of September 30, 1999, our research and
development staff consisted of 75 full-time or contracted employees, that we
supplement from time to time with independent contractors and outside
development resources.

PROPRIETARY RIGHTS

    Our success and ability to compete depends in part upon our proprietary
technology. We rely on a combination of patent, copyright and trade secret laws
as well as non-disclosure agreements to protect our proprietary technology. We
currently hold 15 United States patents and have 13 United States patent
applications pending. Many of these patent applications have also been filed in
a number of other countries. We cannot be certain that patents will be issued
with respect to pending or future patent applications or that our patents will
be upheld as valid or will be sufficient to prevent the development of
competitive products. We seek to protect our intellectual property rights by
limiting access to the distribution of our software, documentation and other
proprietary information. In addition, we have entered into confidentiality
agreements with our employees and certain customers, vendors and strategic
partners. Despite these efforts, it may be possible for unauthorized third
parties to copy certain portions of our products, to design around our patents,
or to reverse-engineer or

                                       51
<PAGE>
otherwise obtain and use our proprietary information. In addition, we cannot be
certain that others will not develop substantially equivalent or superseding
proprietary technology, or that equivalent products will not be marketed in
competition with our products, thereby substantially reducing the value of our
proprietary rights. We are also subject to the risk of adverse claims and
litigation alleging infringement of the intellectual property rights of others.
In this regard, there can be no assurance that third parties will not assert
infringement claims in the future with respect to our current or future products
or that any such claims will not require us to enter into license arrangements
or result in protracted and costly litigation, regardless of the merits of such
claims.

    No assurance can be given that any necessary licenses will be available or
that, if available, such licenses can be obtained on commercially reasonable
terms. In addition, the laws of some countries do not protect our proprietary
rights to the same extent as do the laws of the United States. Accordingly, we
may not be able to protect our proprietary rights against unauthorized
third-party copying or use, which could significantly harm our business.


    In March, 1998, we acquired a license to certain GSM related patents held by
Nortel Networks in conjunction with Nortel Networks' equity investment in us. We
also have software license agreements with Lucent Technologies, TCSI, Inc.,
Trillium Digital Systems, Inc. and Wind River Associates which enable us to use
and modify the licensed software in our products. These licenses are on standard
commercial terms made generally available by the companies providing the
licenses. The cost and terms of these licenses are not material to our business.


MANUFACTURING

    We rely heavily on contract manufacturers to provide labor and
capital-intensive production capacity. We currently use two primary
contractors--PEMSTAR Inc.'s Quadrus contract manufacturing division and
GSS/ARRAY Technology.

    PEMSTAR, Inc. is responsible for manufacturing the majority of our
components and final system assembly. PEMSTAR has over 140,000 square feet of
manufacturing space in San Jose, California. Our initial manufacturing agreement
was signed in October 1995. GSS/ARRAY Technology is responsible for the
manufacture of our radio modules which they build for us pursuant to periodic
purchase orders. GSS/ARRAY has 100,000 square feet of total space in San Jose,
California and was recently acquired by ACT Manufacturing.

    While relying on contractors for most of our manufacturing needs, we also
conduct final assembly and systems test operations at our Redwood City facility.
These functions are expected to be transferred to our contract manufacturers by
the middle of calendar year 2000. Accordingly, our dependence on our
manufacturers will increase. Problems encountered during the consolidation or
future problems relating to our manufacturers' inability to meet our quality and
delivery specifications could harm our operating results.

    Since we typically have long sales cycles, we rely on a detailed sales
forecast to determine our production requirements and meet the ordering needs of
our contract manufacturers. We utilize the sales forecast to control our
inventory levels, and due to the hardware and software configuration of our
product line we are able to easily reconfigure our products in order to respond
to specific customer purchase orders in a timely manner. Our business is
generally not subject to any cyclicality, but rather our customers place
periodic purchase orders with us based on their requirements for our products.

    Our systems include a number of components which come from sole source
suppliers such as Lucent, Motorola and Xilinx. Our contract manufacturers
procure these components from distributors or directly from the sole source
manufacturer. We do not have any contracts with these sole source suppliers, but
we communicate with them frequently in order to insure the continuing
availability of components. Generally, if a manufacturer decides to discontinue
a critical component, it would provide

                                       52
<PAGE>
enough time for us and our contract manufacturers to locate alternative
components. However, we might be required to redesign our products or take other
steps which could delay their availability.

    We plan to consolidate the manufacturing of all of our products with PEMSTAR
by the middle of calendar year 2000.

COMPETITION

    The GSM wireless market is rapidly evolving and highly competitive. We
believe that our business is affected by the following competitive factors:

    - conformity to industry standards;

    - breadth of product line;

    - implementation of additional product features and enhancements, including
      improvements in product performance, reliability, size and scalability;

    - cost;

    - ease of deployment;

    - sales and distribution capability; and

    - and technical support and service.

    We expect that competition in each of our markets will increase in the
future. We currently compete against GSM communications equipment providers such
as Ericsson, Lucent, Motorola, Nokia, and Siemens. We also compete with the
TDMA, CDMA, DECT and wireless local loop product offerings from these same
communications equipment providers and expect that a number of them will develop
competing data communications products and technologies in the near future. We
also compete with the CDMA product offerings of Samsung and LG. In addition, we
compete with the wireless local loop product offerings of Hughes and NEC. While
Alcatel and Nortel Networks are our customers, we do compete in several market
applications. Most of these leading GSM communications equipment providers focus
on solutions that address large numbers of subscribers. Equipment providers are
beginning to focus on markets with smaller subscriber bases as we do currently.
All of the major GSM communications equipment providers have at least partial
GSM solutions that address our target markets.

    Increased competition is likely to result in price reductions, shorter
product life cycles, reduced gross margins, longer sales cycles and loss of
market share, any of which would seriously harm our business. We cannot assure
you that we will be able to compete successfully against current or future
competitors or to preclude us from making or selling certain products or that
competitive pressures we face will not seriously harm our business and results
of operations.

EMPLOYEES

    As of September 30, 1999, we employed or contracted 166 full-time persons,
including 20 in operations, 50 in marketing, sales and customer support, 75 in
research and development and 21 in finance and administration. Of these
employees, 14 were contract employees who were primarily engaged in software
engineering and systems integration and testing. None of our employees is
represented by a labor union and we have experienced no work stoppages to date.
We believe our relationship with our employees is good.

FACILITIES

    Our principal administrative and engineering facilities are located in
leased facilities totaling approximately 28,500 square feet located in Redwood
City, California. We have recently signed a lease for approximately 56,000
square feet in Menlo Park, California for our principal administrative and

                                       53
<PAGE>
engineering facilities. The five-year lease commenced December 15, 1999. We
expect to sublet the premises in Redwood City following our relocation in early
2000 until the expiration of our Redwood City lease in 2002. However, we cannot
be certain that we will be successful in subletting the facilities or that
subletting the facilities will allow us to cover all of our current costs under
the lease. In addition, we lease sales, service and systems testing facilities
totaling approximately 5,900 square feet in Hong Kong and approximately 3,500
square feet in Paris, France. The leases for the Hong Kong facilities expire in
2001 and 2003 and the lease for the Paris facility expires in 2005.

GOVERNMENT REGULATION

    We must obtain regulatory approval for our products to be used in some
jurisdictions. Regulators in Europe, Asia and North America have approved our
products as being compliant with GSM standards. We may sell and deploy our
products in these jurisdictions and in other jurisdictions which rely on these
jurisdictions for approvals. In some cases, specific country compliance testing
may be required. The delays inherent in this regulatory approval process may
cause the rescheduling, postponement or cancellation of the installation of our
products by our customers which, in turn, may significantly reduce sales of
products to such customers.

    We are also subject to US government export controls. We rely on our
customers to inform us when they plan to deliver our products to other countries
and we regularly inform our customers of the export controls with which they
must comply.

LEGAL PROCEEDINGS

    On June 28, 1999, we filed a complaint against JetCell Corporation in the
United States District Court for the Northern District of California (INTERWAVE
COMMUNICATIONS INTERNATIONAL LTD., V. JETCELL CORPORATION, Case No. C99-3125)
alleging misappropriation of trade secrets and infringement of United States
Patent Nos. 5,734,979 and 5,818,824. One of the founders of JetCell Corporation
is a former employee of interWAVE and JetCell also employs another former
employee of interWAVE. The complaint seeks injunctive relief and damages. On
July 19, 1999, JetCell filed an answer to the complaint and a series of
counterclaims against us. The answer denied the allegations made in the
complaint and the counterclaims included allegations against us of unfair trade
practices, unfair competition, defamation, patent misuse and patent invalidity.
The answer and counterclaims seek injunctive relief, damages, invalidation of
our patents and a dismissal of the complaint. On August 9, 1999, we filed an
answer to JetCell's counterclaims denying the allegations made in the
counterclaims. We are unable to predict the outcome of the litigation and do not
expect it to be resolved in the near future. However, if we are unable to settle
these proceedings in a satisfactory manner, the legal proceedings may be time
consuming and expensive and the outcome could be adverse to us. If the outcome
is adverse to us, we would experience more competition in our markets and may be
required to license technology required for our products, either of which could
harm our business and financial results.

    We may from time to time become a party to various legal proceedings arising
in the ordinary course of our business. However, other than as described above,
we are not currently involved in any material legal proceedings.

    interWAVE, Network In A Box, TurboWAVE, WAVEview, WAVEXchange, WAVEXpress,
WAVEXpress BS Plus are trademarks of interWAVE. Nortel Networks is a trademark
of Nortel Networks Corporation. Other trademarks or service marks appearing in
this prospectus belong to their respective holders.

                                       54
<PAGE>
                                   MANAGEMENT

DIRECTORS, EXECUTIVE OFFICERS AND KEY EMPLOYEES

    The following table sets forth certain information regarding our directors,
executive officers and key employees, as of December 22, 1999:

<TABLE>
<CAPTION>
NAME                                          AGE                       POSITION
- ----                                        --------   ------------------------------------------
<S>                                         <C>        <C>
Priscilla M. Lu...........................  47         Chief Executive Officer and Chairman of
                                                       the Board
Ian V. Sugarbroad.........................  53         President and Chief Operating Officer
Thomas W. Hubbs...........................  55         Executive Vice President and Chief
                                                       Financial Officer
Roger C. Cheung...........................  50         Vice President of Engineering
Denis A. Cote.............................  45         Vice President of Worldwide Sales
Edward W. Futcher.........................  45         Vice President of Technology
Michele D. Hogan..........................  51         Vice President of Finance
H. David Jones............................  54         Vice President of Product Marketing
Frank Seto................................  43         Vice President of Operations
Roderick E. Thorne........................  58         Vice President of Compliance and Quality
Lork Sang Chow............................  65         Director
Pascal R. Debon...........................  52         Director
Kevin A. Fong(2)..........................  45         Director
William J. Harding(1).....................  52         Director
James S. Loh..............................  49         Director
Moses K. Tsang (2)........................  51         Director
Andrew C. Wang (1)(2).....................  63         Director
</TABLE>

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

(1) Member of the audit committee.

(2) Member of the compensation committee.

    PRISCILLA M. LU founded our company in 1994 and has served as our Chief
Executive Officer and Chairman of the Board since June 1999 and as President
from June 1994 to August 1999. From 1992 to 1994, Dr. Lu was Vice President and
General Manager of the Network Systems Division at Network Equipment
Technologies, a wide-area network equipment provider. From June 1976 to December
1991, Dr. Lu worked for AT&T Bell Laboratories, a unit of AT&T that is now
Lucent Technologies, where she served as Business Unit Managing Director of the
Imaging and Multimedia Business Group and held other management positions.
Dr. Lu holds a B.S. and M.S. in Computer Science and Mathematics from the
University of Wisconsin and a Ph.D. in Electrical Engineering and Computer
Science from Northwestern University.

    IAN V. SUGARBROAD has served as our President and Chief Operating Officer
since September 1999. From 1976 to August 1999, Mr. Sugarbroad worked for Nortel
Networks, a telecommunications equipment company. From January 1998 to August
1999, Mr. Sugarbroad was Vice President of Business Development, GSM Solutions,
located in Paris, France. From November 1996 to December 1997, Mr. Sugarbroad
was Vice President and General Manager of Nortel Networks wireless terminals
business in Dallas, Texas. Mr. Sugarbroad holds a B.Sc. in Physics from the
University of London and a M.Sc. in Physics and a M.B.A. from the University of
Western Ontario.

    THOMAS W. HUBBS has served as our Executive Vice President and Chief
Financial Officer since July 1999 and as Senior Vice President and Chief
Financial Officer from December 1995 to April 1998. From November 1998 to
July 1999, Mr. Hubbs consulted with us in a variety of financial and business
development capacities. From April 1998 to October 1998, Mr. Hubbs served as
Senior Vice President

                                       55
<PAGE>
and Chief Financial Officer for Walker Interactive Systems, Inc., a financial
systems software provider. From February 1987 to August 1995, Mr. Hubbs served
as Vice President and Chief Financial Officer for VeriFone, Inc., a transaction
automation systems company. Mr. Hubbs is a board member of Celeritek, Inc.
Mr. Hubbs holds a B.S. degree in Business Administration from Lehigh University
and a M.B.A. from the University of Santa Clara.

    ROGER C. CHEUNG has served as our Vice President of Engineering since
September 1999. From February 1994 to September 1999, Dr. Cheung was Chief
Architect, Communications Industry Business Unit at Hewlett-Packard Company, a
computer and electronics equipment manufacturer. Dr. Cheung holds a B.S. degree
in Electrical Engineering from Lehigh University and a M.S. and Ph.D. in
Electrical Engineering from the University of California, Berkeley.

    DENIS A. COTE has served as our Vice President of Worldwide Sales since
November 1998. From April 1979 until joining us in November 1998, Mr. Cote
worked for Harris Corporation, a telecommunications equipment supplier. From
November 1993 to November 1998, Mr. Cote was Vice President of World Wide
Marketing and Sales for Harris Farinon, a subsidiary of Harris Corporation.
Mr. Cote holds a B.S. in electrical engineering and a M.B.A. from the University
of Montreal.

    EDWARD W. FUTCHER has served as our Vice President of Technology since
September 1999 and as our Vice President of Engineering from March 1998 to
September 1999 and was acting Vice President of Engineering from July 1997 to
March 1998. From May 1997 to July 1997, Dr. Futcher was Senior Director of
Systems and Software Development. From May 1994 to May 1997, he was Director of
Engineering at Tellabs, a telecommunications equipment supplier. From
October 1987 to May 1994, Dr. Futcher was the founder and President for
Novus, Inc., a software developer. Dr. Futcher holds a B.Sc. in Physics and a
Ph.D. in Theoretical Physics from the University of London.

    MICHELE D. HOGAN has served as our Vice President of Finance since
August 1994. From July 1985 until January 1994, Ms. Hogan was employed by
Network Equipment Technologies, a wide-area network equipment provider, where
she served as Director of Operations, Finance. Ms. Hogan holds a B.S. in
Sociology from the University of Santa Clara, and a M.B.A. from San Jose State
University.

    H. DAVID JONES has been Vice President of Product Marketing since
September 1999 and was Vice President of Sales from April 1996 to March 1997,
and Director of Sales from August 1994 to March 1996. From November 1998 until
September 1999, Mr. Jones consulted with us in a number of sales and marketing
capacities. From April 1997 until May 1998, he was co-founder and Vice President
of Sales and Marketing for Symmetry Communications Systems, Inc., a high speed
wireless communications company. He holds a B.S. in Business Administration from
Capital University and a M.B.A. from Ohio University.

    FRANK SETO has served as our Vice President of Operations since October
1999. From July 1998 until October 1999, Mr. Seto was Director of Global
Operations Finance at Lucent Technologies, a telecommunications equipment
company. From August 1986 until July 1998, Mr. Seto was Manufacturing Operations
Controller and Divisional Controller at 3Com Corporation, an electronics
equipment manufacturer. Mr. Seto holds a B.S. in Business Administration from
the University of California, Berkeley and a M.B.A. from Golden Gate University.

    RODERICK E. THORNE has served as our Vice President, Compliance and Quality
since September 1999, was our Director, Hardware Engineering from June 1996
until September 1999 and served in other roles from August 1994 until June 1996.
Dr. Thorne holds a B.S. in Electrical Engineering from Yale University and a
M.S. and Ph.D. in Electrical Engineering from the University of California,
Berkeley.

    LORK SANG CHOW has served as a director of our company since 1994. Mr. Chow
has retired. Mr. Chow holds a diploma from Pui Ching Middle School.

                                       56
<PAGE>
    PASCAL R. DEBON has served as a director of our company since 1998.
Mr. Debon has been in general management positions with Nortel Networks since
1994. Mr. Debon is President of Wireless Solutions for Nortel Networks, based in
Dallas, Texas, and was formerly President of GSM Networks at Nortel Networks in
Paris. Mr. Debon holds a B.S. in Economics from l'Universite de Nanterre.

    KEVIN A. FONG has served as a director of our company since 1995. Mr. Fong
has been a General Partner of Mayfield Fund, a venture capital firm, since 1989.
Mr. Fong is a board member of Legato Systems, Inc. and Vixel Corporation and
several private companies. Mr. Fong holds a B.S. in Electrical Engineering from
the University of California, Berkeley, and a M.S. in Electrical Engineering and
a M.B.A. from Stanford University.

    WILLIAM J. HARDING has served as director of our company since July 1995.
Dr. Harding has been a Managing Member of Morgan Stanley Dean Witter Venture
Partners, a venture capital firm, since 1994. From 1985 to 1994, Dr. Harding was
a General Partner of J.H. Whitney & Co., an investment management company.
Dr. Harding is a board member of Commerce One, Inc., InterNAP Network Services
Corporation and Persistence Software, Inc. Dr. Harding holds a B.S. in
Engineering Mathematics and a M.S. in Systems Engineering from the University of
Arizona, and a Ph.D. in Engineering from Arizona State University.

    JAMES S. LOH has served as a director of our company since 1994. Mr. Loh was
recently appointed Vice Chairman, Barclays Capital, the investment banking
division of Barclays PLC, a global financial institution. From 1988 to 1999,
Mr. Loh was a Senior Vice President of UBS AG, a global investment bank and has
been a Principal at Mainwell Holdings, a venture capital firm, since 1993.
Mr. Loh has a B.Sc. in Business Economics from the University of Bridgeport and
a M.B.A. from the University of Chicago.

    MOSES K. TSANG has served as a director of our company since 1994.
Mr. Tsang has been General Partner at Ankar Capital Management, a venture
capital firm, since 1999. From 1998 to 1999, Mr. Tsang was employed by Goldman
Sachs Asia LLC, an investment banking firm, as an Advisory Director. From 1994
to 1998, Mr. Tsang was a Limited Partner and during 1994 he served as Chairman.
Mr. Tsang has a B.S. from Minnesota State University and a M.S.W. from the
University of Iowa.

    ANDREW C. WANG has served as a director of our company since 1994. Dr. Wang
has been Chairman of Industrial Technology Investment Corporation, a venture
capital firm, and Taiwan Mask Corporation, a semiconductor manufacturer, since
1989. From 1992 to 1997, Dr. Wang was President and Chief Executive Officer of
Optical Microwave Network, Inc., a microwave component company. From 1994 to
1997, Dr. Wang was Chairman and Chief Executive Officer of Mobile
Telesystems, Inc., a satellite communications company. Dr. Wang holds a B.S. in
Electrical Engineering from the National Taiwan University, a M.S. in Electrical
Engineering from the University of California, Berkeley, and a Ph.D. in
Electrical Engineering from Stanford University.

BOARD OF DIRECTORS

    We currently have eight directors. Our directors hold office until the next
annual meeting of shareholders or until their successors are duly elected or
appointed.  All eight of our directors were elected pursuant to voting
agreements between us and certain of our shareholders. The most recent voting
agreement required that the parties to the agreement vote all of their shares so
as to elect as directors two persons designated by holders of the common shares,
one person designated by EXCELlink Corporation, one person designated by
Mainwell Corporation, one person designated by Sasson International Holdings,
Inc., one person designated by Mayfield VII and Mayfield Associates Fund II, one
person designated by Morgan Stanley Venture Capital Fund II and one person
designated by Nortel Networks. All of the voting agreements terminate on the
effective date of our initial public offering. Following this offering, our
board of directors will be divided into three classes. The

                                       57
<PAGE>
directors in each class will serve for a three-year term, one class being
elected each year by our shareholders.

BOARD COMMITTEES

    The audit committee currently consists of Messrs. Harding and Wang. The
audit committee reviews our annual audit and supervises independent auditors
that review the company's internal accounting procedures and financial
management practices.

    The compensation committee currently consists of Messrs. Fong, Tsang and
Wang. The compensation committee makes recommendations concerning salaries,
stock options, incentives and other forms of compensation for directors,
officers and other employees of our company. The compensation committee also
administers our common share plans.

DIRECTOR COMPENSATION

    Our 1999 option plan provides for grants of options to purchase common stock
to our directors who are not employees. Non-employee directors will receive
annual 10,000 share option grants annually on an ongoing basis, commencing with
our 2001 annual meeting. In November 1999, each of our non-employee directors
received an option to purchase 50,000 common shares at an exercise price of
$7.60 per share. In addition, our directors are reimbursed for expenses incurred
in connection with attending board and committee meetings.

COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

    None of the members of the compensation committee is currently, or has been
at any time since our formation, one of our officers or employees. During the
fiscal year ended June 30, 1999, no executive officer of our company served as a
member of the board of directors or compensation committee of any entity that
has one or more officers serving as a member of our board of directors or
compensation committee.

EXECUTIVE OFFICERS

    Our executive officers are elected by, and serve at the discretion of, our
board of directors. There are no family relationships among our directors or
officers.

EXECUTIVE COMPENSATION

    In fiscal year 1999, we paid an aggregate $917,582 in cash compensation to
the directors and officers named under the caption "Directors, Executive
Officers and Key Employees," as a group.

    At January 18, 2000, our directors and officers, as a group, held options to
purchase a total 2,156,007 common shares, at exercise prices ranging from $0.30
to $7.60 per share. These options are scheduled to expire on various dates
between February 15, 2006 and November 19, 2009.

                                       58
<PAGE>
                           SUMMARY COMPENSATION TABLE

    The following table sets forth all compensation awarded to, earned by, or
paid to our Chief Executive Officer and the other four most highly compensated
executive officers, each of whose total cash compensation exceeded, or would
exceed on an annualized basis, $100,000 during the year ended June 30, 1999.

<TABLE>
<CAPTION>
                                                                                            OTHER
                                                                                            ANNUAL
NAME AND PRINCIPAL POSITION                               YEAR      SALARY     BONUS     COMPENSATION
- ---------------------------                             --------   --------   --------   ------------
<S>                                                     <C>        <C>        <C>        <C>
Priscilla M. Lu
  Chief Executive Officer.............................    1999     $200,000    $   --       $21,443
Thomas W. Hubbs
  Executive Vice President............................    1999      210,600        --            --
Edward W. Futcher
  Vice President, Technology..........................    1999      155,961     6,750            --
Michele B. Hogan
  Vice President, Finance.............................    1999      140,961    19,500            --
Denis Cote
  Vice President, Worldwide Sales.....................    1999      132,367    30,000            --
</TABLE>

    Dr. Lu's other annual compensation consists of educational and child care
expenses for family members. On October 4, 1999, Dr. Lu's annual base salary was
increased to $285,000.

    Thomas W. Hubbs, Executive Vice President and Chief Financial Officer,
rejoined us in July 1999. In the fiscal year ended June 30, 1999, Mr. Hubbs
served as our acting Chief Financial Officer on a consulting basis, and all
compensation in the table for Mr. Hubbs reflects consulting fees.

    Denis Cote joined us in November 1998 as Vice President, Worldwide Sales.
Mr. Cote's salary in fiscal year ended June 30, 1999 consists of $98,077 in
salary and $34,290 in sales commissions.

    Ian V. Sugarbroad, President and Chief Operating Officer, joined us in
September 1999. Mr. Sugarbroad's salary on an annualized basis is $250,000.

                       OPTION GRANTS IN LAST FISCAL YEAR

    The following table sets forth information with respect to stock options
granted during fiscal year 1999 to the other four executive officers who
received salary compensation of more than $100,000 and who received option
grants in the last fiscal year.

<TABLE>
<CAPTION>
                                                      INDIVIDUAL GRANTS
                                      --------------------------------------------------   POTENTIAL REALIZABLE
                                                    PERCENT OF                                   VALUE AT
                                                      TOTAL                                   ASSUMED ANNUAL
                                      NUMBER OF      OPTIONS                               RATES OF SHARE PRICE
                                      SECURITIES     GRANTED                                 APPRECIATION FOR
                                      UNDERLYING   TO EMPLOYEES   EXERCISE                      OPTION TERM
                                       OPTIONS      IN FISCAL       PRICE     EXPIRATION   ---------------------
NAME                                   GRANTED         1999       PER SHARE      DATE         5%          10%
- ----                                  ----------   ------------   ---------   ----------   ---------   ---------
<S>                                   <C>          <C>            <C>         <C>          <C>         <C>
Thomas W. Hubbs.....................   185,000          7.7%        $0.70      03/18/09    $ 81,442    $206,390
Edward W. Futcher...................    80,000          3.3          0.70      03/18/09      35,218      89,250
                                        20,000          0.8          1.15      07/28/08      14,465      36,656
Michele D. Hogan....................    50,000          2.1          0.70      03/18/09      22,011      55,781
                                        12,000          0.5          1.15      07/28/08       8,679      21,994
Denis Cote..........................   140,000          5.8          1.15      11/12/08     101,252     256,593
                                        40,000          1.7          0.70      03/18/09      17,609      44,625
</TABLE>

    As of January 18, 2000, 132,500 of the options granted to Mr. Hubbs in the
last fiscal year have vested. The options vested 50% on the date of grant, and
the balance vest in a series of monthly installments over the next two years of
service. In the event the ownership of our company changes substantially, 50% of
Mr. Hubbs unvested options shall vest automatically.

                                       59
<PAGE>
    As of January 18, 2000, 23,750 of the options granted to Mr. Futcher in the
last fiscal year have vested. The options vest in a series of monthly
installments over the four years of service following the date of grant.

    As of January 18, 2000, 14,667 of the options granted to Ms. Hogan in the
last fiscal year have vested. The options vest in a series of monthly
installments over the four years of service following the date of grant.

    As of January 18, 2000, 57,500 of the options granted to Denis Cote in the
last fiscal year have vested. 100,000 of the options vest in a series of monthly
installments over the four years of service following the date grant. 40,000 of
the options vest upon achievement of revenue targets.

    In accordance with the rules of the SEC, the above shows the potential
realizable value over the term of the option (the period from the grant date to
the expiration date) based on assumed rates of share price appreciation of 5%
and 10%, compounded annually. These amounts do not represent our estimate of
future share price. Actual gains, if any, on option exercises will depend on the
future performance of our common shares.

                  OPTION GRANTS SINCE END OF LAST FISCAL YEAR

    The following table sets forth information with respect to stock options
granted from the end of the last fiscal year until January 18, 2000 to the
executive officers and directors. From the end of the last fiscal year until
January 18, 2000, options to purchase 2,860,000 common shares were granted at a
weighted average exercise price of $1.96.

<TABLE>
<CAPTION>
                                                                             POTENTIAL REALIZABLE
                                               INDIVIDUAL GRANTS                   VALUE AT
                                      -----------------------------------    ASSUMED ANNUAL RATES
                                      NUMBER OF                                 OF SHARE PRICE           VALUE OF
                                      SECURITIES                            APPRECIATION FOR OPTION    OPTION GRANT
                                      UNDERLYING   EXERCISE                          TERM               AT ASSUMED
                                       OPTIONS       PRICE     EXPIRATION   -----------------------      INITIAL
NAME                                   GRANTED     PER SHARE      DATE         5%           10%       OFFERING PRICE
- ----                                  ----------   ---------   ----------   ---------   -----------   --------------
<S>                                   <C>          <C>         <C>          <C>         <C>           <C>
Ian V. Sugarbroad...................   500,000       $0.70      07/29/09    $220,113    $  557,810      $5,150,000
Thomas W. Hubbs.....................   100,000        0.70      07/29/09      44,023       111,562       1,030,000
Roger C. Cheung.....................   390,000        1.50      08/26/09     367,903       932,339       3,705,000
Denis Cote..........................    40,000        1.50      08/30/09      37,734        95,625         380,000
                                        40,000        5.25      10/07/09     132,068       334,686         230,000
Michele D. Hogan....................    30,000        1.50      08/26/09      28,300        71,718         285,000
H. David Jones......................   100,000        1.50      08/27/09      94,334       239,061         950,000
                                        50,000        5.25      10/07/09     165,085       418,357         287,500
Frank Seto..........................   200,000        4.00      09/27/09     503,116     1,274,994       1,400,000
Roderick E. Thorne..................    57,000        4.00      09/27/09     143,388       363,373         399,000
Lork Sang Chow......................    50,000        7.60      11/19/09     238,980       605,622         170,000
Pascal Debon........................    50,000        7.60      11/19/09     238,980       605,622         170,000
Kevin A. Fong.......................    50,000        7.60      11/19/09     238,980       605,622         170,000
William J. Harding..................    50,000        7.60      11/19/09     238,980       605,622         170,000
James S. Loh........................    50,000        7.60      11/19/09     238,980       605,622         170,000
Moses K. Tsang......................    50,000        7.60      11/19/09     238,980       605,622         170,000
Andrew C. Wang......................    50,000        7.60      11/19/09     238,980       605,622         170,000
</TABLE>

    In accordance with the rules of the SEC, the above shows the potential
realizable value over the term of the option (the period from the grant date to
the expiration date) based on assumed rates of share price appreciation of 5%
and 10%, compounded annually. These amounts do not represent our estimate of
future share price. Actual gains, if any, on option exercises will depend on the
future performance of our common shares.

                                       60
<PAGE>
                             YEAR-END OPTION VALUES

    The following table sets forth information for our Chief Executive Officer
and our other executive officers who received salary compensation of more than
$100,000 in fiscal year ending June 30, 1999, relating to the number and value
of securities underlying exercisable and unexercisable options held at June 30,
1999.

<TABLE>
<CAPTION>
                                         NUMBER OF SECURITIES UNDERLYING      VALUE OF UNEXERCISED
                                             UNEXERCISED OPTIONS AT          IN-THE-MONEY OPTIONS AT
                                                JUNE 30, 1999 (#)               JUNE 30, 1999 ($)
                                         -------------------------------   ---------------------------
NAME                                      EXERCISABLE     UNEXERCISABLE    EXERCISABLE   UNEXERCISABLE
- ----                                     -------------   ---------------   -----------   -------------
<S>                                      <C>             <C>               <C>           <C>
Priscilla M. Lu........................     391,667            8,333       $4,179,087      $  88,913
Thomas W. Hubbs........................     106,250           78,750        1,094,375        811,125
Edward W. Futcher......................      41,979          147,813          415,743      1,489,708
Michele D. Hogan.......................       2,960           60,292           30,130        615,112
Denis Cote.............................      22,500          157,500          222,750      1,568,250
</TABLE>

    The value of unexercised in-the-money options represents the difference
between the fair market value of the underlying common shares using an assumed
initial public offering price of $11.00 per share and the exercise price of the
option, multiplied by the number of shares underlying the option.

EMPLOYMENT AGREEMENTS

    In June 1999, we entered into an employment agreement with Thomas Hubbs, our
Executive Vice President and Chief Financial Officer. The agreement provides for
an annual base salary of $260,000 and quarterly bonuses up to 30% of his then
annual salary per year, beginning in fiscal year 2000, upon meeting corporate
objectives established by the board of directors. The agreement also provides
Mr. Hubbs with incentive stock options to purchase an aggregate of 100,000
common shares subject to time-based vesting over a four-year period. The
agreement provides that Mr. Hubbs is an employee at will, which means that his
employment may be terminated at any time at our sole discretion. The agreement
also provides that if Mr. Hubbs' duties or position is changed in a detrimental
manner towards him upon a sale of our assets or merger with or into another
entity, we will owe him severance of one year salary and accelerate the vesting
of some of his option shares.

    In September 1999, we entered into an employment agreement with Ian
Sugarbroad, our President and Chief Operating Officer. The agreement provides
for an annual base salary of $250,000 and quarterly bonuses up to $50,000 per
year upon meeting revenue and expense targets. The agreement also provides
Mr. Sugarbroad with incentive stock options to purchase an aggregate of 300,000
common shares subject to time-based vesting over a four-year period. In
addition, Mr. Sugarbroad may earn up to 50,000 common shares for each of the
next four years in quarterly bonuses. The agreement provides that
Mr. Sugarbroad is an employee at will, which means that his employment may be
terminated at any time at our sole discretion. If we terminate Mr. Sugarbroad's
employment without cause, we must pay him up to 100% of his annual salary for
one year. The agreement also provides that if Mr. Sugarbroad's duties or
position is changed in a detrimental manner towards him upon a sale of our
assets or a merger with or into another entity, we will owe him severance of one
year salary and accelerate the vesting of some of his option shares.

EMPLOYEE BENEFIT PLANS

1999 OPTION PLAN

    Our option plan was approved by our board in September 1999 and will be
submitted to our shareholders for their approval prior to the date of this
offering to become effective on the date of this offering. Our option plan
provides for the grant of incentive stock options to employees and for the

                                       61
<PAGE>
grant of nonstatutory stock options and share purchase rights to employees,
directors and consultants. Unless terminated sooner, this option plan will
terminate automatically in 2009. The 1999 option plan will have 1,818,867
initial shares available for grant, which were the reserved and unissued shares
under the 1994 stock plan The amount reserved under the option plan will
automatically increase at the end of each fiscal year by the lesser of 2,000,000
shares or 4.0% of outstanding shares on such date or an amount determined by the
board.

    The option plan may be administered by the board or a committee of the
board, which committee must, in the case of options intended to qualify as
"performance-based compensation" consist of two or more "outside directors." The
administrator of the option plan has the power to determine the terms of the
options or share purchase rights granted, including the exercise price of each
option or share purchase right, the number of shares subject to each option or
share purchase right, the exercisability of options, and the form of
consideration payable upon exercise of an option or share purchase right. In
addition, the administrator has the authority to amend, suspend or terminate the
option plan, provided that no action by the administrator may affect any of the
common shares previously issued and sold or any option previously granted under
the option plan.

    Options and share purchase rights granted under the option plan are not
generally transferable by the optionee, and each option and share purchase right
is exercisable during the lifetime of the optionee only by the optionee. Options
granted under the option plan must generally be exercised within three months
after the end of optionee's status as our employee, our director or as our
consultant. In the case of termination by reason of death or disability, an
option will generally remain exercisable for a period of 12 months. In no event
may an option be exercised later than the expiration of the option's term.
Options generally vest over a 4-year period at a rate of 1/4 of the shares
subject to the option after the first year and 1/48 of the shares subject to the
option each following month.

    In the case of share purchase rights, unless the administrator determines
otherwise, the restricted share purchase agreement entered into at the time a
share purchase right is exercised grants us a repurchase option exercisable upon
the voluntary or involuntary termination of the purchaser's employment or
consulting relationship with us for any reason including death or disability.
The purchase price for shares repurchased pursuant to the restricted share
purchase agreement is the original price paid by the purchaser and may be paid
by cancellation of any indebtedness of the purchaser to us. The administrator
determines the rate at which a repurchase option will lapse.

    The administrator determines the exercise price of nonstatutory stock
options granted under the option plan, but with respect to nonstatutory stock
options intended to qualify as "performance-based compensation" within the
meaning of Section 162(m) of the Internal Revenue Code, as amended, the exercise
price must at least be equal to the fair market value of the common shares on
the date of grant. The exercise price of all incentive stock options granted
under the option plan must be at least equal to the fair market value of the
common shares on the date of grant and the term of such option may not exceed
ten years. With respect to any participant who owns shares possessing more than
10% of the voting power of all classes of our outstanding capital shares, the
exercise price of any incentive stock option granted must equal at least 110% of
the fair market value on the grant date and the term of such incentive stock
option must not exceed five years. The administrator determines the term of all
other options.

    Commencing with our 2001 annual meeting of shareholders, each of our
non-employee directors will automatically be granted an option to purchase
10,000 shares each year following the date of our annual shareholder's meeting,
if on such date he or she will have served on the board of directors for at
least the previous 6 months. Each option will have a term of 10 years and the
exercise price will be 100% of the fair market value per common share on the
date of grant. Each option will vest as to 1/12

                                       62
<PAGE>
of the shares each month following the date of grant, provided the optionee
still serves as a director on those dates.

    The option plan provides that in the event that we merge with or into
another corporation, sell substantially all of our assets or enter a similar
transaction, the successor corporation will assume or substitute each option or
right. If the outstanding options or rights are not assumed or substituted, the
administrator will provide notice to the optionee that he or she has the right
to exercise the option or right as to all of the shares subject to the option or
right, including shares which would not otherwise be exercisable, for a period
of 15 days from the date of the notice. The option or right will terminate upon
the expiration of the 15-day period.

1999 EMPLOYEE SHARE PURCHASE PLAN

    Our employee share purchase plan was adopted by the board in September 1999
and will be submitted to our shareholders for their approval prior to the date
of this offering, to become effective on the date of this offering. A total of
300,000 of our common shares have been reserved for issuance under the employee
share purchase plan. The amount reserved under the employee share purchase plan
will be increased automatically at the end of each fiscal year in the amount of
the lesser of 200,000 shares, 0.5% of the outstanding shares on such date or an
amount determined by the board.

    The board of directors or a committee appointed by the board of directors
administers the employee share purchase plan. The board of directors or its
committee has full and exclusive authority to interpret the terms of the
employee share purchase plan and determine eligibility.

    The employee share purchase plan contains successive, overlapping 24-month
offering periods. Each offering period includes four 6-month purchase periods.
The offering periods generally start on the first trading day on May 1 and
November 1 of each year, except for the first offering period, which commences
on the date of this offering and ends on the last trading day before
October 31, 2001.

    Employees are eligible to participate in our employee share purchase plan if
they are customarily employed by us or any participating subsidiary for at least
20 hours per week and more than five months in any calendar year, although any
employee who would own shares representing 5% or more of the total combined
voting power or value of all classes of our capital shares may not participate
in the employee share purchase plan. In addition, no employee of ours may be
granted an option to purchase shares under the plan if that person's right to
purchase shares under all of our employee share purchase plans accrues at a rate
that exceeds $25,000 worth of shares for each calendar year. The employee share
purchase plan permits participants to purchase common shares through payroll
deductions of up to 15% of the participant's compensation which includes the
participant's base straight time gross earnings, commissions, payments for
overtime, profit sharing payments, shift premium payments, incentive
compensation, incentive payments and bonuses. The maximum number of shares a
participant may purchase during any single offering period is 10,000 shares.

    Amounts deducted and accumulated under the employee share purchase plan are
used to purchase common shares at the end of each 6-month purchase period. The
price of shares purchased under the employee share purchase plan is 85% of the
lower of the fair market value of the common shares at the beginning of the
offering period or after a purchase period end. If the offering period commences
on the date of this offering, the price of the shares purchased shall be the
price to the public of the shares offered in this offering. In the event the
fair market value at the end of a purchase period is less than the fair market
value at the beginning of the offering period, participants will be withdrawn
from the current offering period following their purchase of shares on the
purchase date and will be automatically re-enrolled in a new offering period.
Participants may end their participation at any time during an offering period
and will be paid their payroll deductions to date. Participation ends
automatically upon termination of employment with us. Rights granted under the
employee share

                                       63
<PAGE>
purchase plan are not transferable by a participant other than by will, the laws
of descent and distribution, or as otherwise provided under the employee share
purchase plan.

    The employee share purchase plan provides that, in the event that we merge
with or into another corporation or sell substantially all of our assets, each
outstanding right to purchase shares under the employee share purchase plan
during the offering period then in progress may be assumed or substituted for by
the successor corporation. If the successor corporation refuses such assumption
or substitution, the offering period then in progress will be shortened and a
new purchase date will be set at or prior to the closing of that transaction
after which time the employee share purchase plan will terminate.

    The employee share purchase plan will terminate in 2009. The board has the
authority to amend or terminate the employee share purchase plan, except that no
such action may adversely affect any outstanding rights to purchase shares under
the employee share purchase plan.

1994 STOCK PLAN

    This stock plan was adopted on July 13, 1994. This plan provides for the
grant of incentive stock options to our employees, including employee directors,
and nonstatutory stock options and stock purchase rights to our employees,
directors and consultants. We have reserved 10,730,000 common shares for
issuance under this plan. As of September 30, 1999, options to purchase
5,130,509 common shares were outstanding at a weighted average exercise price of
$1.10, 2,991,686 shares had been issued upon exercise of outstanding options,
and 2,607,805 shares were available for future grant and have been added to the
1999 option plan.

    This stock plan is administered by our board of directors or by a committee
appointed by our board of directors. The administrator determines the terms of
options granted under the option plan, including the number of shares subject to
the option, exercise price, term and exercisability. Unless terminated earlier
by our board of directors, this option plan shall terminate on July 12, 2004.

    Incentive stock options granted under the option plan must have an exercise
price of at least 100% of the fair market value of the common shares on the date
of grant and at least 110% of the fair market value in the case of an optionee
who holds more than 10% of the total voting power of all classes of our shares.
Nonstatutory stock options granted under the option plan must have an exercise
price of at least 85% of the fair market value of the common shares on the date
of grant. If an optionee holds more than 10% of the voting power of all classes
of our capital shares, any options granted to that optionee must have an
exercise price of at least 110% of the fair market value of the common shares on
the date of grant. Payment of the exercise price may be made in cash or other
consideration as determined by the administrator. The term of an incentive stock
option cannot exceed 10 years, and the term of an incentive stock option granted
to a holder of more than 10% of our voting power cannot exceed five years.

    No option may be transferred by the optionee other than by will or the laws
of descent or distribution. Each option may be exercised during the lifetime of
the optionee only by the optionee or permitted transferee. Options granted under
the option plan generally must be exercised within 90 days after termination of
the optionee's status as our employee, our director or our consultant, or within
6 months if termination is due to the disability of the optionee or 12 months if
termination is due to the death of the optionee, but in no event later than the
expiration of the option's term.

    In the event that we merge with or into another corporation, or sell
substantially all of our assets, each outstanding option may be assumed or an
equivalent option substituted by the successor organization. However, if the
successor corporation does not agree to assume or substitute the option, the
option will terminate. Our board of directors has the authority to amend or
terminate the option plan provided that no action that impairs the rights of any
holder of an outstanding option may be

                                       64
<PAGE>
taken without the holder's consent. In addition, our shareholders must approve
any modification to the option plan.

401(K) PLAN

    In 1995, we adopted a 401(k) plan covering our full-time employees located
in the United States. The 401(k) plan is intended to qualify under
Section 401(k) of the Internal Revenue Code, so that contributions to the 401(k)
plan by employees or by us, and the investment earnings thereon, are not taxable
to employees until withdrawn from the 401(k) plan, and so that we can deduct our
contributions, if any, when made. Pursuant to the 401(k) plan, employees may
elect to reduce their current compensation by up to the lesser of 20% of their
annual pre-tax gross compensation or the statutorily prescribed annual limit of
$10,000 in 1999 and to have the amount of the reduction contributed to the
401(k) plan. Matching contributions by us, if any, are vested when made; all
other contributions, and earnings on such contributions, are at all times fully
vested. We did not contribute to the plan in the fiscal year ending June 30,
1999, but have agreed to match up to $1,000 of employee contributions in a
calendar year beginning with the fiscal year ending June 30, 2000.

INDEMNIFICATION OF DIRECTORS AND EXECUTIVE OFFICERS AND LIMITATION OF LIABILITY

    Our bye-laws provide that we shall indemnify our directors, officers,
employees and other agents but for acts of fraud and dishonesty on the part of
indemnified parties. In addition, our bye-laws provide that our shareholders
agree to waive any claims or right of actions the shareholders may have against
any of our directors or executive officers on account of any action taken by the
directors or executive officers in their capacity for us. This waiver does not
apply to claims arising under the U.S. federal securities laws. Our bye-laws
also permit us to secure insurance on behalf of any officer, director, employee
or other agent for any liability arising out of his or her actions in such
capacity, regardless of whether our bye-laws expressly permit indemnification.

    We will be entering into agreements to indemnify our directors and executive
officers, in addition to the indemnification provided for in our bye-laws. These
agreements, among other things, will indemnify our directors and executive
officers for certain expenses including attorneys' fees, judgments, fines and
settlement amounts incurred by any director or executive officer in any action
or proceeding, including any action by or in our right arising out of that
person's services as a director, officer, employee, agent or fiduciary for us,
any subsidiary of ours or any other company or enterprise to which the person
provides services at our request. The agreements do not provide for
indemnification in cases where

    - the claim is brought by the indemnified party;

    - the indemnified party has not acted in good faith;

    - the claim arises under section 16(b) of the exchange act; or

    - the indemnified party has engaged in acts, omissions or transactions for
      which the indemnified party is prohibited from receiving indemnification
      under the agreement or applicable law.

We believe that these provisions and agreements are necessary to attract and
retain qualified persons as directors and executive officers. It is the position
of the SEC that indemnification for liabilities arising under federal or state
securities laws is against public policy and not enforceable.

    At present, there is no pending litigation or proceeding involving any of
our directors or officers in which indemnification is required or permitted, and
we are not aware of any threatened litigation or proceeding that may result in a
claim for such indemnification.

                                       65
<PAGE>
                              CERTAIN TRANSACTIONS

SERIES G PREFERRED FINANCING

SERIES G PREFERRED SHARES AND WARRANTS

    In March and April 1998, we sold 3,714,286 Series G preferred shares and a
warrant to purchase 2,000,000 shares of Series G preferred shares at $7.00 per
share to Nortel Networks for an aggregate purchase price of $24,500,000. We
incurred financing costs of $1,756,000 in association with this financing.

    Consideration of the purchase price consisted of:

    - a cash payment by Nortel Networks of $20,000,000

    - the signing and delivery of a technology patent license agreement by
      Nortel Networks granting us a license to certain Nortel Networks' patents
      with a value of $1,000,000 and;

    - the signing and delivery of a technical information agreement by Nortel
      Networks granting us access to Nortel Networks' technical assistance,
      testing services and other documentation and support with a value to us of
      $3,500,000

    The warrant to purchase 2,000,000 Series G preferred shares at $7.00 per
share expires on the earlier of March 27, 2001, the closing of an initial public
offering or a sale of all or substantially all of our assets. Nortel Networks
has notified us of its intent, which may be withdrawn, to exercise this warrant
at the time of this offering. We therefore assumed the exercise and subsequent
conversion into common shares as indicated throughout this filing.

    The Series G preferred shares contain a $7.00 per share liquidation
preference and converts to common shares on a one-to-one basis. Concurrently
with the sale of the Series G preferred shares, Nortel Networks entered into a
registration rights agreement with us providing the registration rights
described in "Description of Share Capital--Registration Rights" and a voting
agreement providing for the election of our board of directors. Additional
information regarding the voting agreement is provided below.

    Assuming the exercise of all warrants held by Nortel Networks, they
currently own approximately 22.4% of our outstanding common shares and will own
18.5% of our outstanding common shares following the offering. Pascal R. Debon,
President of Wireless Solutions for Nortel Networks, is a member of our board of
directors. Sales to Nortel Networks represented 51% and 18% of our net revenues
for fiscal years 1999 and the three months ending September 30, 1999,
respectively.

PATENT LICENSE AGREEMENT

    The patent license agreement provides us with a license to certain patents
held by Nortel Networks. The patent licenses continue in one year periods and
are subject to renewal at the end of each year with the consent of Nortel
Networks and us.

    Nortel Networks may terminate the patent technology license agreement if it
is assigned by us to a third party. However, Nortel Networks may not terminate
the agreement if the third party is not a competitor of Nortel Networks, we
transfer all or substantially all of our assets to the third party, the
financial condition of the third party is not substantially worse than ours at
March of 1998 and the third party agrees to assume all of our obligations under
the patent technology license agreement. If the patent technology license
agreement is terminated due to assignment to a third party prior to the fourth
anniversary of its March 27, 1998 effective date, Nortel Networks shall refund,
at its option, to us the amounts set forth below either in cash or our shares.
However, Nortel Networks shall pay the refund in cash if the fair market value
of one share of our Series G preferred shares is less than six dollars and six
cents per share.

                                       66
<PAGE>

<TABLE>
<S>                                        <C>                  <C>                  <C>
         Date of Termination of                  Percent                                    Cash
        Patent License Agreement                 Refund               Shares               Payment
  Prior to 1(st) anniversary                       80%                132,063             $800,000
  After 1(st) and prior to 2(nd)
  anniversary                                      60%                99,047              $600,000
  After 2(nd) and prior to 3(rd)
  anniversary                                      40%                66,032              $400,000
  After 3(rd) and prior to 4(th)
  anniversary                                      20%                33,016              $200,000
</TABLE>

TECHNICAL INFORMATION AGREEMENT

    The technical information agreement provides us access to Nortel Networks'
technical assistance and testing services and other support and technical
information relating to the functionality, performance, testing, development and
interfaces with Nortel Networks' products. The information agreement terminates
upon termination of the purchase and distribution agreement signed concurrently
with the technical information agreement.

    Nortel Networks may terminate portions of the technical information
agreement relating to technical information, technical assistance and technology
development if it is assigned by us to a third party. However, Nortel Networks
may not terminate any portion of the agreement if the third party is not a
competitor of Nortel Networks, we transfer all or substantially all of our
assets to the third party, the financial condition of the third party is not
substantially worse than ours at March of 1998 and the third party agrees to
assume all of our obligations under the technical information agreement.

    If a portion of the technical information agreement is terminated due to
assignment to a third party prior to the fourth anniversary of its March 27,
1998 effective date, Nortel Networks shall refund, at its option, to us the
amounts set forth below payable in either cash or our shares. However, Nortel
Networks shall pay the refund in cash if the fair market value of one share of
our Series G preferred shares is less than six dollars and six cents per share.

<TABLE>
<S>                                        <C>                  <C>                  <C>
         Date of Termination of                  Percent                                    Cash
     Technical Information Agreement             Refund               Shares               Payment
  Prior to 1(st) anniversary                       65%                375,556            $2,275,000
  After 1(st) and prior to 2(nd)
  anniversary                                      45%                260,000            $1,575,000
  After 2(nd) and prior to 3(rd)
  anniversary                                      30%                173,333            $1,050,000
  After 3(rd) and prior to 4(th)
  anniversary                                      15%                86,667              $ 525,000
</TABLE>

PURCHASE AND DISTRIBUTION AGREEMENT

    Concurrently with the sale of Series G preferred shares, Nortel Networks
entered into a purchase and distribution agreement with us in which Nortel
Networks agreed to purchase goods and services according to certain
specifications and we agree to supply the goods and services.

    This agreement establishes minimum amounts of goods to be purchased by
Nortel Networks for each quarter starting in June 1998 and ending in December
2000. The agreement requires that we provide specified product features by
various milestone dates. The minimum amounts of goods to be purchased can be
periodically adjusted to reflect the prevailing conditions of markets for the
goods. If the established minimum amount of goods for each quarter above is not
purchased, Nortel Networks

                                       67
<PAGE>
shall pay us a percentage of the shortfall of goods not purchased for that
quarter. We shall credit Nortel Networks in the subsequent quarter the amount
paid for Nortel Networks' shortfall if Nortel Networks makes up the shortfall
with an excess in orders in the following quarter.

    This agreement further provides that until December 31, 1999 we shall not
enter into a purchase and distribution agreement with Nokia or Ericsson for
products developed using information contained in or as a result of the
technical information or purchase and distribution agreements with Nortel
Networks. After December 31, 1999, the above restriction shall be terminated
only if the annual purchase by Nortel Networks for the calendar years 2000, 2001
and 2002 is less than eighty (80%) percent of the established minimum amounts.

    This agreement between us and Nortel Networks may be immediately terminated,
in whole or in part, by either party if the other party fails to remedy a breach
of an order within 60 days of written request, declares or seeks bankruptcy
protection or ceases to carry on business.

AMENDMENT OF BYE-LAWS

    In connection with the sale of Series G preferred shares, we amended our
bye-laws to require Nortel Networks' consent before an increase to the
authorized number of Series G preferred shares.

    Our bye-laws were further amended to provide for the following until the
closing of an initial public offering:

    - Prohibit us from engaging, directly or indirectly, in any business other
      than the microcellular business except with the prior consent of Nortel
      Networks or, if the limited exclusivity provisions contained in the
      purchase and distribution agreement have terminated, with the prior
      consent of a majority of directors who are neither officers nor employees

    - Prohibit us from acquiring stock or making an investment in any person
      engaged primarily in the compact wireless communications systems business
      involving an aggregate of $5,000,000 except with the prior consent of
      Nortel Networks or, if the limited exclusivity provisions contained in the
      purchase and distribution agreement have terminated, with the prior
      consent of a majority of directors who are neither officers nor employees

    - Prohibit us from acquiring stock or making an investment in any person NOT
      engaged primarily in the compact wireless communications systems business
      involving an aggregate of $1,000,000 except with the prior consent of
      Nortel Networks or, if the limited exclusivity provisions contained in the
      purchase and distribution agreement have terminated, with the prior
      consent of directors who are neither officers nor employees

    - Prohibit us from selling technology or assets described in the patent
      license agreement and the technology license agreement outside the
      ordinary course of business except in compliance with the provisions
      contained in those agreements or with the prior consent of Nortel Networks

    - Prohibit us from entering into any transaction with any person that is the
      beneficial owner or is affiliated with a beneficial owner of 5% or more of
      the outstanding voting shares except with the prior written consent of
      Nortel Networks

    - Require a majority of our board members to consent to its budget for each
      fiscal year, and any material expenditures made beyond the limits set by
      such budget

    - Prohibit us from incurring any debt in an amount exceeding $1,000,000
      except with the prior approval of two-thirds of its board members

    - Require our bye-laws to provide for a board consisting of nine members, at
      least seven of whom will be neither officers nor employees. Further, a
      majority of the directors holding office will be necessary for a quorum,
      provided that if the number of directors holding office is less than five
      and the director nominated by Nortel Networks remains in office, then
      Nortel Networks' director must be present to constitute a quorum

                                       68
<PAGE>
    - Require our compensation committee to approve any employment agreement
      with any officer or other employee under which the total compensation
      package may be expected to exceed $250,000

    - Require transactions taken by any of our majority-owned subsidiaries to be
      subject to the same provisions described above.

LOAN AGREEMENT

    In December 1998 we entered into a loan agreement with Nortel Networks in
which we borrowed $1,400,000 at 12% annual interest. The loan's maturity date
was the earlier of:

    - February 21, 1999

    - the date on which we closed a public offering or obtained net cash
      proceeds in the sale of assets or a financing of $6,000,000

    - the date of the signing and delivery of an agreement providing for our
      acquisition by another company; or

    - a change in control of our management

    We were able to pay the accrued interest on the note but we were not able to
repay the principal amount borrowed at the maturity date of February 21, 1999
causing a default under the terms of the loan agreement. To remedy the default,
on April 22, 1999, we issued to Nortel Networks a warrant to acquire 24,000
common shares at $1.15 per share. The warrant expires on the earlier of
April 22, 2002 or the closing of an initial public offering.

    The principal balance of $1,400,000 borrowed in the loan agreement was
applied as payment for Nortel Networks' participation in our March 1999,
convertible loan and warrant financing. As a result, Nortel Networks' $1,400,000
became a loan to us under the convertible loan and warrant financing. Additional
information regarding our convertible loan and warrant financing is provided
below.

CONVERTIBLE NOTE AND WARRANT FINANCING

    Between March 1999 and June 1999, we entered into convertible note and
warrant agreements with 106 investors, all of which were existing shareholders,
in which we borrowed an aggregate of $12,691,830 at 8% annual interest. In
connection with the convertible note financing, we granted the investors
warrants to purchase an aggregate of 6,345,939 common shares at a purchase price
of $0.70 per share. These warrants expire at various times between March 2004
and June 2004.

    As an additional incentive to participate in the convertible note financing,
shareholders of series A, B, C, D, E, F and G preferred shares participating in
the convertible note financing at a minimum level based on their respective
ownership percentage were entitled to exchange their original preferred shares
for A-1, B-1, C-1, D-1, E-1, F-1 and G-1 preferred shares, respectively, whose
terms were identical to the original preferred shares, except that the new
preferred shares would be preferential in liquidation to all original preferred
shares.

    The convertible note and warrant agreement provided for the automatic
conversion of the outstanding principal balance and accrued interest upon the
closing of our next equity financing which raised at least $10,000,000 in gross
proceeds. As a result of the financing that closed on September 10, 1999, the
notes and aggregate accrued interest of $414,946 converted, according to the
terms of the agreement, into 1,872,362 Series H1 preferred shares and we granted
the investors additional warrants to purchase 253,874 common shares at a
purchase price of $1.00 per share. Each investor was issued the number of
Series H1 preferred shares calculated by dividing the sum of each investor's
note and accrued interest by $7.00 and a warrant to purchase 0.02 common shares
at $1.00 per share for each $1.00 of principal note amount. These warrants
expire on September 10, 2002 or upon the consummation of an initial public
offering. The liquidation preference for all Series H1 preferred

                                       69
<PAGE>
shares issued in the equity financing and the subsequent conversion of notes was
$7.00 per share. Additional information regarding the Series H1 preferred share
financing is provided below.

    The following table shows officers, directors, 5% shareholders and
affiliated investors who participated in our convertible note and warrant
financing.

<TABLE>
<CAPTION>
                                                                      ANNUAL                              CONVERSION    BENEFICIAL
OFFICERS, DIRECTORS                          DATE OF       NOTE      INTEREST    INITIAL       SECOND       TO H1      OWNERSHIP AS
AND 5% SHAREHOLDERS          INVESTOR          NOTE       AMOUNT       RATE     WARRANT(1)   WARRANT(2)   SHARES(3)    OF 1/18/2000
- -------------------     -------------------  --------   ----------   --------   ----------   ----------   ----------   ------------
<S>                     <C>                  <C>        <C>          <C>        <C>          <C>          <C>          <C>
Pascal Debon..........  Nortel                3/3/99    $1,400,000      8%(4)     700,000      28,000      208,311        22.4%
                        Networks              3/3/99     1,147,347      8%        573,674      22,947      170,717
                                             5/26/99     2,452,653      8%      1,226,327      49,054      358,476
                                                        ----------              ---------     -------      -------
                                                         5,000,000              2,500,001     100,001      737,504
Kevin Fong............  Mayfield Funds        3/3/99       746,037      8%        373,019      14,922      111,004         7.5%
Lork Sang Chow........  EXCELlink(5)          3/3/99       744,817      8%        354,814      14,897      110,824        10.3%

William Harding.......  Morgan Stanley Dean   3/3/99       652,782      8%        326,391      13,056       97,128         6.3%
                        Witter Venture
                        Partners

Moses Tsang...........  MKT Holdings LLC(6)   4/1/99       503,412      8%        196,706      22,585       74,815         3.3%

James Loh.............  Mainwell Holdings    3/19/99       436,020      8%        218,010       8,721       64,655         4.2%

Holodeck Limited......  Holodeck Limited     4/15/99       201,091      8%        100,546       4,022       29,652         7.2%

Priscilla M. Lu.......  Priscilla M. Lu       4/7/99       100,000      8%         50,000       2,000       14,771        10.6%

Denis A. Cote.........  Denis A. Cote        3/31/99        35,000      8%         17,500         700        5,177            *

Michele D. Hogan......  Michele D. Hogan     3/29/99        30,000      8%         15,000         600        4,439            *

Edward W. Futcher.....  Edward W. Futcher    3/21/99        10,000      8%          5,000         200        1,482            *

Thomas W. Hubbs.......  Voleas Ltd.          3/22/99         9,000      8%          4,500         180        1,333            *

                        Cynthia Hubbs Trust  3/23/99         5,000      8%          2,500         100          740            *

                        Bryna Hubbs Trust    3/23/99         5,000      8%          2,500         100          740            *

Roderick Thorne.......  Roderick Thorne      3/24/99         3,016      8%          1,508          61          446            *

Andrew Wang...........  Sasson                6/8/99             0      8%         12,874           0            0         7.0%
                        International
                        Holdings LLC(7)
</TABLE>

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

 (1) Represents the initial warrants granted to the note and warrant investors,
     who received one-half of a warrant for each dollar of principal amount
     invested by each such investor. The warrants are exerciseable at a price of
     $0.70 per share and expire between March, 2004 and June, 2004.


 (2) Represents additional warrants granted to the note and warrant investors on
     September 10, 2002. Each investor received .02 additional warrants for each
     dollar of principal amount invested by each such investor. The warrants are
     exerciseable at a price of $1.00 per share and expire upon the earlier of
     September 10, 2002 or an initial public offering.


 (3) Represents the number of Series H1 shares issuable to the note and warrant
     investors upon conversion of the principal amount and accrued interest.

 (4) Nortel Networks' note in the amount of $1,400,000 represents the conversion
     of a previous note issued to Nortel Networks for the same principal amount
     originally at 12% annual interest.

 (5) Represents current holdings in the convertible loan and warrant financing
     following the assignment of a portion of EXCELlink's original investment of
     $1,148,528 in principal amount, 574,264 initial warrant and 22,971 second
     warrant to the following entities:

       Transfer to MKT Holdings LLC of $403,711 of principal amount, 146,855
       initial warrant and 8,075 second warrant

       Transfer to Saintsville Limited of 55,000 initial warrant

       Transfer to Cheerio Profits Limited (BVI) of 17,595 initial warrant

                                       70
<PAGE>
 (6) Represents current holdings in the convertible loan and warrant financing
     following receipt of assignment from the following entities:

       Transfer from EXCELlink of $403,711 of principal amount, 146,855 initial
       warrant and 8,075 second warrant

       Transfer from Tsang and Associates (Cayman Islands) L.L.C. of $99,701 of
       principal amount, 49,851 initial warrant and 1,995 second warrant

       Transfer from Sasson International Holdings LLC of 12,515 second warrant

 (7) Represents current holdings in the convertible loan and warrant financing
     following the assignment of a portion of Sasson International Holdings
     LLC's original investment of $1,251,492 in principal amount, 625,746
     initial warrant and 25,030 second warrant to the following entities:

       Transfer to Mercantile Teleco Venture of $1,251,492 of principal amount,
       312,873 initial warrant and 12,516 second warrant

       Transfer to Saintsville Limited of 195,000 initial warrant

       Transfer to Cool Breeze Holdings Limited of 105,000 initial warrant

SERIES H PREFERRED SHARE FINANCING

    In July 1999 we sold 360,000 Series H preferred shares to ADC
Telecommunications, Inc. at $7.00 per share for a total of $2,520,000. The
purchase price was paid by the cancellation and satisfaction of all outstanding
invoices and indebtedness by us for services performed by ADC Telecommunications
in the aggregate amount of $2,520,000.

SERIES H1 PREFERRED SHARE FINANCING

INVESTMENT BY INTASYS CORPORATION, DAMAC INVESTORS, INC. AND MEDIATEL CAPITAL

    Between July 1 and September 10, 1999 we sold Series H1 preferred shares and
issued warrants as follows:

<TABLE>
<S>                  <C>                       <C>                  <C>                  <C>
                                                                        Warrants to
                                                                      purchase common
                                               Shares H1 Preferred        shares
   Closing Date              Investor              Shares (1)       at $1.00 per share   Total Consideration
      6/30/99         DAMAC Investors, Inc.          285,715             40,000(2)           $2,000,005
      7/26/99          Intasys Corporation           715,000            100,000(3)            5,005,000
      9/10/99            Mediatel Capital            715,000            100,000(3)            5,005,000
</TABLE>

 (1) Liquidation Preference $7.00 per share;

 (2) Warrants valued by Black-Scholes using $1.00 exercise price, $6.26 fair
     market value, 70% volatility and 6% risk-free rate of return yields warrant
     value of $5.47 per share.

 (3) Warrants valued by Black-Scholes using $1.00 exercise price, $7.50 fair
     market value, 70% volatility and 6% risk-free rate of return yields warrant
     value of $6.70 per share.

    The warrants expire on the earlier of three years from the issuance date or
upon the effectiveness of an initial public offering.

    Concurrently with the financing, we entered into a memorandum of
understanding with Intasys Corporation providing for our distribution and
manufacturing of Intasys Corporation's products and for

                                       71
<PAGE>
the marketing of our products in Canada. In conjunction with the memorandum of
understanding we issued to Intasys Corporation another warrant to purchase
615,000 common shares at an exercise price of $1.00 per share and we received a
three-year warrant to purchase 225,225 Intasys Corporation's common shares at an
exercise price of $3.31 per share. This second warrant issued to Intasys
Corporation also expires on the earlier of three years from the issuance date or
upon the effectiveness of an initial public offering. The warrant to purchase
615,000 common shares was in addition to a warrant to purchase 100,000 common
shares at $1.00 per share issued to Intasys Corporation in the sale of the
Series H1 preferred shares.

CONVERSION OF PRINCIPAL UNDER CONVERTIBLE NOTE AND WARRANT FINANCING

    The sale of Series H1 preferred shares to Intasys Corporation and MediaTel
Capital met the minimum financing requirements and triggered the automatic
conversion provided in the convertible note and warrant agreement. In
September 1999 the notes, along with accrued interest, converted into 1,872,362
Series H1 preferred shares and warrants to purchase 253,874 common shares at an
exercise price of $1.00 per share.

TERMS OF SERIES H1 PREFERRED SHARES

    The Series H1 preferred shares contain a $7.00 per share liquidation
preference and converts to common shares on a one-to-one basis. Concurrently
with the sale of the Series H1 preferred shares, Intasys Corporation, MediaTel
Capital and the investors in the convertible note and warrant financing entered
into a registration rights agreement with us providing the registration rights
described in "Description of Share Capital--Registration Rights".

    Intasys Corporation and MediaTel Capital also entered into a voting
agreement with us providing for the election of our board of directors.
Additional information regarding the voting agreement is provided below.

SERIES I1 PREFERRED SHARE FINANCING

    In November and December 1999 we sold 1,526,663 Series I1 preferred shares
to Alcatel and 2,000,000 Series I1 preferred shares to Holodeck Limited at $8.00
per share for a total of $28,213,304. We incurred financing costs of $200,000 in
connection with this financing.

PURCHASE AND DISTRIBUTION AGREEMENT

    Concurrently with the sale of Series I1 preferred shares, Alcatel entered
into an agreement with us in which Alcatel agreed to purchase goods and services
according to certain specifications and we agree to supply the goods and
services.

    This agreement establishes minimum amounts of goods and services to be
purchased by Alcatel in each successive six month period, beginning with the six
month period starting January 1, 2000. If the established minimum amount of
goods for each six month period is not purchased, Alcatel shall pay us a
percentage of the shortfall of goods not purchased for that six months. If
Alcatel exceeds its commitment for a six month period, we shall credit Alcatel a
percentage of the exceeded amount. The agreement requires that we meet certain
product development objectives by various milestone dates. Among other
objectives, we must conduct the beta test by May 15, 2000 and have Alcatel's
final acceptance by July 15, 2000. The agreement terminates on December 31,
2001, but is automatically renewable for successive twelve month periods.

    If Ericsson, Lucent Technologies, Siemens, Cisco or Nokia purchases more
than 15% of our shares, the terms of this agreement with Alcatel will be
modified to allow Alcatel, at its election, to extend the duration of this
agreement or to terminate this agreement with a six month prior written notice
and Alcatel's minimum purchase requirements will be terminated. If Ericsson,
Lucent Technologies, Siemens, Cisco or Nokia purchases more than 50% of our
shares, we change our business model or fail

                                       72
<PAGE>
to meet the terms of this agreement, the terms of this agreement with Alcatel
will be modified as described in the preceding sentence and Alcatel may elect to
receive a manufacturing license from us for a fee.

    This agreement between us and Alcatel may be immediately terminated, in
whole or in part, by either party if the other party fails to remedy a breach of
the agreement within 90 days of a written request, declares or seeks bankruptcy
protection or ceases to carry on business.

PURCHASE AGREEMENT


    Concurrently with the sale of Series I1 preferred shares, an affiliate of
Hutchison entered into an agreement with us in which the affiliate agreed to
purchase goods and services in Sri Lanka according to certain specifications and
we agree to supply the goods and services. We currently estimate that Hutchison
will purchase approximately $6.7 million of our products under this agreement.


    In connection with this agreement, we entered into an exclusivity agreement
in which we agreed not to sell our WAVEXchange and WAVExpress products to any
party in Sri Lanka other than Hutchison's affiliate for a period of three years.
This period will be extended two years if at the end of the three year period
Hutchison's affiliate has ordered equipment in the aggregate value of
$15 million. In this agreement, we also agreed not to sell these products to any
party in Mumbai, India until March 31, 2000. If by that date Hutchison or its
affiliate has placed an order for the products in the aggregate value of
$6 million, we will not supply these products to any third party for three
years. This period will be extended two years if at the end of the three year
period Hutchison or its affiliate has placed an order in an aggregate value of
$15 million.

    This agreement between us and the affiliate of Hutchison may be immediately
terminated by this affiliate if we fail to complete the work under the agreement
and the failure continues for 45 days after written notice is sent by the
affiliate to us.

TERMS OF SERIES I1 PREFERRED SHARES

    The Series I1 preferred shares contain a $8.00 per share liquidation
preference and convert to common shares on a one-to-one basis. Concurrently with
the sale of the Series I1 preferred shares, Alcatel and Holodeck Limited entered
into a registration rights agreement providing the registration rights with us
described in "Description of Share Capital--Registration Rights".

    Alcatel and Holodeck Limited also entered into a voting agreement with us
providing for the election of our board of directors. Additional information
regarding the voting agreement is provided below.

DIRECTED SHARE PROGRAM

    The underwriters have reserved for sale, at the initial public offering
price, up to 1,500,000 common shares for customers, directors, employees and
other persons associated with us who have expressed an interest in purchasing
common shares in the offering. This group may include Alcatel which may purchase
approximately 600,000 common shares and entities associated with the principal
stockholder of Hutchison Whampoa Limited, which is the corporate parent of
Holodeck Limited, one of our shareholders which may purchase approximately
500,000 common shares.

LOAN TO DR. LU

    We loaned Dr. Lu $132,000 in August 1999 so that she could exercise her
expiring option holdings. The options were exercised for 400,000 of our common
shares at an exercise price of $0.33 per share. In exchange for the loan,
Dr. Lu entered into a promissory note with us in which she agreed to repay the
loan on or before August 26, 2004. The note accrues interest at 7.05% and may be
prepaid without penalty.

                                       73
<PAGE>
STOCKHOLDER VOTING AGREEMENT

    All eight of our directors were elected pursuant to a voting agreement
between us and the shareholders listed in footnote 1. The most recent voting
agreement, which supersedes the prior agreements, provides that the parties to
the agreement vote all of the shares they own beneficially to elect as directors

    - Two persons designated by the holders of common shares

    - One person designated by EXCELlink Corporation

    - One person designated by Mainwell Corporation

    - One person designated by Sasson International Holdings, Inc.

    - One person designated by Mayfield VII and Mayfield Associates Fund II

    - One person designated by Morgan Stanley Dean Witter Venture Partners

    - One person designated by Nortel Networks

    The voting agreement further provides for restrictions in the sale of shares
consisting of more than 5% of our outstanding shares to any of Nokia, Ericsson,
Motorola, Lucent, Siemens or Alcatel or any of their affiliates.

    The voting agreement terminates on the effective date of our initial public
offering.

(1) The parties to the voting agreement include:

    - Alcatel

    - EXCELlink

    - Intasys Corporation

    - Mainwell Corporation

    - Mayfield Funds

    - Morgan Stanley Dean Witter Venture Partners

    - Nortel Networks

    - MediaTel Capital

    - Sasson International Holdings

    - Holodeck Limited

    - Priscilla M. Lu

OPTION ISSUANCES

    Since the end of fiscal year 1999, we have issued options to several of our
directors and executive officers. Our non-employee directors will also be
eligible for option grants under our 1999 option plan. Please see "Management"
for information regarding these matters.

FUTURE TRANSACTIONS

    We believe that the transactions described in this section were made on
terms no less favorable than could have been obtained from third parties. We
plan to adopt a policy that requires all future transactions between us and
officers, directors and affiliates to be on terms no less favorable than could
be obtained from unaffiliated third parties and such future transactions must be
approved by a certain number or percentage of disinterested directors. Under our
bye-laws, our directors may participate in transactions involving us or in which
we are interested.

                                       74
<PAGE>
                             PRINCIPAL SHAREHOLDERS

    The following table sets forth information known to us with respect to the
beneficial ownership of our common shares as of January 18, 2000 and as adjusted
to reflect the sale of common shares offered in this prospectus:

    - each shareholder known by us to own beneficially more than 5% of our
      common shares, as explained below;

    - each of our executive officers;

    - each of our directors; and

    - all of our directors and executive officers as a group.

    Beneficial ownership is determined in accordance with the rules of the SEC.
In computing the number of shares beneficially owned by a person and the
percentage ownership of that person, the common shares subject to options or
warrants held by that person that are currently exercisable or will become
exercisable within 60 days after January 18, 2000, are deemed outstanding, while
the shares are not deemed outstanding for purposes of computing percentage
ownership of any other person.

    Unless otherwise indicated below, the address for each shareholder on this
table is c/o interWAVE Communications International, Ltd., 656 Bair Island Road,
Suite 108, Redwood City, CA 94063. Unless otherwise indicated below, the persons
and entities named in the table have sole voting or investment power with
respect to all shares beneficially owned, subject to community property laws
where applicable.

    The percentage of shares beneficially owned are based on the aggregate of

    - 35,870,878 common shares outstanding as of January 18, 2000, assuming
      conversion of all outstanding preferred shares into common shares, and

    - 8,500,000 common shares issued in this offering. Assumes no exercise of
      underwriters' over-allotment option. Percentage ownership figures after
      the offering do not include shares that may be purchased by each person in
      the offering.

<TABLE>
<CAPTION>
                                                                 SHARES      PERCENT    PERCENT
                                                              BENEFICIALLY    BEFORE     AFTER
BENEFICIAL OWNER                                                 OWNED       OFFERING   OFFERING
- ----------------                                              ------------   --------   --------
<S>                                                           <C>            <C>        <C>
Nortel Networks Corporation(1) .............................    9,075,792      22.4%      18.5%
  8200 Dixie Road, Suite 100
  Brampton, Ontario, L6T 5P6
  Canada

Entities associated with EXCELlink(2) ......................    3,744,235      10.3        8.4
  Lork Sang Chow
  c/o King Fook Finance Co., Ltd.
  30-32 Des Voeux Road
  Hong Kong

Entities associated with Mayfield Funds(3) .................    2,718,911       7.5        6.1
  c/o Kevin Fong
  Mayfield Funds
  2800 Sand Hill Road
  Menlo Park, CA 94025

Holodeck Limited(4) ........................................    2,594,220       7.2%       5.8
  Hutchison House, 22nd Floor
  10 Harcourt Road
  Hong Kong
</TABLE>

                                       75
<PAGE>


<TABLE>
<CAPTION>
                                                                 SHARES      PERCENT    PERCENT
                                                              BENEFICIALLY    BEFORE     AFTER
BENEFICIAL OWNER                                                 OWNED       OFFERING   OFFERING
- ----------------                                              ------------   --------   --------
<S>                                                           <C>            <C>        <C>
Sasson International Holdings, Inc.(5) .....................    2,502,274       7.0        5.6
  c/o Dr. Andrew Wang
  Sasson International Holdings, Inc.
  710 Lakeway Drive, Suite 140
  Sunnyvale, CA 94086

Entities associated with Morgan Stanley Dean Witter
  Venture Partners(6) ......................................    2,291,545       6.3        5.1
  c/o William J. Harding
  Morgan Stanley Dean Witter Venture Partners
  3000 Sand Hill Road
  Bldg 4, Suite 250
  Menlo Park, CA 94025

Mainwell Corporation(7) ....................................    1,530,397       4.2        3.4
  c/o James Loh
  UBS Securities
  80 Raffles Place, UOB Plaza I
  Singapore 0104

MKT Holdings LLC and related entities(8) ...................    1,198,027       3.3        2.7
  c/o Moses Tsang
  Goldman Sachs & Co.
  37th Floor Asia Pacific Finance Tower
  Citibank Plaza, 3 Garden Road
  Hong Kong

Priscilla M. Lu(9)..........................................    3,815,191      10.6        8.6

Ian V. Sugarbroad(10).......................................       20,000      *          *

Thomas W. Hubbs(11).........................................      306,026      *          *

Roger B. Cheung(12).........................................       40,000      *          *

Denis A. Cote(13)...........................................      127,437      *          *

Edward W. Futcher(14).......................................       83,662      *          *

H. David Jones(15)..........................................       41,249      *          *

Michele D. Hogan(16)........................................      189,872      *          *

Pascal R. Debon(17).........................................    9,086,209      22.4       18.5

Kevin A. Fong(18)...........................................    2,768,911       7.6        6.2

William J. Harding(19)......................................    2,341,545       6.5        5.2

James S. Loh(20)............................................    1,580,397       4.4        3.5

Moses K. Tsang(21)..........................................    1,388,027       3.8        3.1

Andrew C. Wang(22)..........................................    2,552,274       7.1        5.7

Lork Sang Chow(23)..........................................    3,794,235      10.5        8.5

Frank Seto(24)..............................................      200,000      *          *

Roderick Thorne(25).........................................       66,286      *          *
</TABLE>


                                       76
<PAGE>


<TABLE>
<CAPTION>
                                                                 SHARES      PERCENT    PERCENT
                                                              BENEFICIALLY    BEFORE     AFTER
BENEFICIAL OWNER                                                 OWNED       OFFERING   OFFERING
- ----------------                                              ------------   --------   --------
<S>                                                           <C>            <C>        <C>
All directors and executive officers as a group                28,401,321      75.9%      61.8%
  (17 persons)..............................................
</TABLE>


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

   * Less than 1% of the outstanding common shares.

 (1) Consists of 4,451,790 shares held by and 4,624,002 shares issuable pursuant
     to warrants held by Nortel Networks. Mr. Debon, one of our directors, is an
     employee of Nortel Networks.

 (2) Consists of 3,374,524 shares held by and 369,711 shares issuable pursuant
     to warrants held by EXCELlink. Mr. Chow, a member of our board of
     directors, is affiliated with EXCELlink.

 (3) Consists of 117,279 shares held by and 21,954 shares issuable pursuant to
     warrants held by Mayfield Associates Fund II; and 2,213,691 shares held by
     and 365,987 shares issuable pursuant to warrants held by Mayfield
     Associates Fund VII. Mr. Fong, a member of our board of directors, is
     affiliated with Mayfield Funds.

 (4) Consists of 2,489,652 shares held by and 104,568 shares issuable upon
     exercise of warrants held by Holodeck Limited.

 (5) Consists of 2,489,400 shares held by and 12,874 shares issuable pursuant to
     warrants held by Sasson International Holdings, Inc. Dr. Wang, a member of
     our board of directors, is a principal of Sasson International Holdings,
     Inc.

 (6) Consists of 322,363 shares held by and 56,055 shares issuable pursuant to
     warrants held by Morgan Stanley Venture Capital Fund II, CV; 1,293,916
     shares held by and 224,997 shares issuable pursuant to warrants held by
     Morgan Stanley Venture Capital Fund II, LP; 335,819 shares held by and
     58,395 shares issuable pursuant to warrants held by Morgan Stanley Venture
     Investors, LP. Dr. Harding, a member of our board of directors, is
     affiliated with Morgan Stanley Dean Witter Venture Partners.

 (7) Consists of 1,303,666 shares held by and 226,731 shares issuable pursuant
     to warrants held by Mainwell Corporation. Mr. Loh, a member of our board of
     directors, is affiliated with Mainwell Holdings.

 (8) Consists of 527,835 shares held by and 177,766 shares issuable pursuant to
     warrants held by Tsang & Associates; and 273,135 shares held by and 219,291
     shares issuable pursuant to a warrant held by MKT Holdings LLC. Mr. Tsang,
     a member of our board of directors, is affiliated with MKT Holdings.

 (9) Consists of 1,673,191 shares held by and 52,000 shares issuable pursuant to
     warrants held by Dr. Lu; 2,000,000 shares held by Best Ventures; 30,000
     shares held by Douglas Lu-Hill, Irrevocable Trust; 30,000 shares held by
     Felicity Lu-Hill, Irrevocable Trust; and 30,000 shares held by the Olivia
     Lu-Hill Irrevocable Trust. All of the options held by Dr. Lu have been
     exercised.

 (10) Consists of 20,000 shares issuable upon exercise of stock options.

 (11) Consists of 113,750 shares held by Mr. Hubbs; 26,333 shares held by and
      4,680 shares issuable pursuant to warrants held by Voleas Ltd.; 740 shares
      held by and 2,600 shares issuable pursuant to a warrant held by Thomas
      Hubbs C/F Cynthia Megan Hubbs UTMA/CA; 740 shares held by and 2,600 shares
      issuable pursuant to a warrant held by Thomas Hubbs C/F Bryna N. Hubbs
      UTMA/CA; and 154,583 shares which may be acquired upon exercise of stock
      options.

 (12) Consists solely of 40,000 shares issued upon exercise of stock options.

 (13) Consists of 100,070 shares held by and 18,200 shares issuable upon
      exercise of warrants held by Mr. Cote; and 9,167 shares which may be
      acquired upon exercise of stock options.

 (14) Consists of 68,382 shares held by and 5,200 shares issuable pursuant to
      warrants held by Dr. Futcher; and 10,080 shares issuable upon exercise of
      stock options.

 (15) Consists of 36,041 shares held by Mr. Jones; and 5,208 which may be
      acquired upon exercise of stock options.

                                       77
<PAGE>
 (16) Consists of 160,188 shares held by and 15,600 shares issuable pursuant to
      warrants held by Ms. Hogan; and 14,084 shares which may be acquired upon
      exercise of stock options.


 (17) Consists of 4,451,790 shares held by and 4,624,002 shares issuable
      pursuant to warrants held by Nortel Networks. Also includes 10,417 shares
      issuable upon exercise of stock options. Mr. Debon, one of our directors,
      is an employee of Nortel Networks.


 (18) Consists of 117,279 shares held by and 21,954 shares issuable pursuant to
      warrants held by Mayfield Associates Fund II; 2,213,691 shares held by and
      365,987 shares issuable pursuant to warrants held by Mayfield Associates
      Fund VII. Mr. Fong, a member of our board of directors, is affiliated with
      Mayfield Funds. Also includes 50,000 shares issuable upon exercise of
      stock options.

 (19) Consists of 322,363 shares held by and 56,055 shares issuable pursuant to
      warrants held by Morgan Stanley Venture Capital Fund II, CV; 1,293,916
      shares held by and 224,997 shares issuable pursuant to warrants held by
      Morgan Stanley Venture Capital Fund II, LP; 335,819 shares held by and
      58,395 shares issuable pursuant to warrants held by Morgan Stanley Venture
      Investors, LP. Dr. Harding, a member of our board of directors, is
      affiliated with Morgan Stanley Dean Witter Venture Partners. Also includes
      50,000 shares issuable upon exercise of stock options.

 (20) Consists of 1,303,666 shares held by and 226,731 shares issuable pursuant
      to warrants held by Mainwell Corporation. Mr. Loh, a member of our board
      of directors, is affiliated with Mainwell Corporation. Also includes
      50,000 shares issuable upon exercise of stock options.

 (21) Consists of 527,835 shares held by and 177,766 shares issuable pursuant to
      warrants held by Tsang & Associates; and 273,135 shares held by and
      219,291 shares issuable pursuant to a warrant held by MKT Holdings LLC.
      Mr. Tsang, a member of our board of directors, is affiliated with MKT
      Holdings. Also includes 140,000 shares held by Mr. Tsang and 50,000 shares
      issuable upon exercise of stock options.

 (22) Consists of 2,489,400 shares held by and 12,874 shares issuable pursuant
      to warrants held by Sasson International Holdings, Inc. Dr. Wang is a
      principal of Sasson International Holdings, Inc. Also includes 50,000
      shares issuable upon exercise of stock options.

 (23) Consists of 3,374,524 shares held by and 369,711 shares issuable pursuant
      to warrants held by EXCELlink. Mr. Chow, a member of our board of
      directors, is affiliated with EXCELlink. Also includes 50,000 shares
      issuable upon exercise of stock options.

 (24) Consists of 200,000 shares held by Mr. Seto and subject to a repurchase
      right by interWAVE which lapses over forty-eight months.

 (25) Consists of 48,820 shares held by Dr. Thorne, 1,569 shares issuable upon
      exercise of warrants held by Dr. Thorne, and 15,897 shares which may be
      acquired pursuant to stock options.

                                       78
<PAGE>
                          DESCRIPTION OF SHARE CAPITAL

GENERAL

    After this offering, we will be authorized to issue 100,000,000 common
shares, $0.001 par value, and 10,000,000 shares of undesignated preferred
shares, $0.001 par value. Immediately after this offering, we estimate there
will be approximately 44,370,878 common shares outstanding, 7,286,594 common
shares will be issuable upon exercise of outstanding warrants, 5,317,191 common
shares issuable on exercise of outstanding options and no preferred shares will
be issued and outstanding as of January 18, 2000. The weighted average exercise
price of the options is $1.56 and the weighted average exercise price of the
warrants is $0.75.

    Our memorandum of association and bye-laws contain provisions that are
intended to enhance the likelihood of continuity and stability in the
composition of the board of directors and which may have the effect of delaying,
deferring, or preventing a future takeover of us unless such takeover or change
in control is approved by the board of directors.

COMMON SHARES

    Holders of common shares are entitled to one vote per share on all matters
to be voted upon by the shareholders.

    Holders of the common shares are entitled to receive such dividends as may
be declared from time to time by the board of directors out of funds legally
available therefor, subject to the terms of any existing or future agreements
with holders of our preferred shares. We have never declared or paid cash
dividends on our capital shares, expect to retain future earnings, if any, for
use in the operation and expansion of our business, and do not anticipate paying
any cash dividends in the foreseeable future. In the event of our liquidation,
dissolution or winding up, the holders of common shares are entitled to share
ratable in all assets legally available for distribution after payment of all
debts and other liabilities and subject to the prior rights of any holders of
preferred shares then outstanding. Holders of common shares have no preemptive
or other subscription or conversion rights. There are no redemption or sinking
fund provisions applicable to the common shares.

PREFERRED SHARES

    Effective upon the closing of this offering, we will be authorized to issue
10,000,000 shares of undesignated preferred shares, none of which will be
outstanding. The board of directors has the authority to issue the preferred
shares in one or more series and to fix the price, rights, preferences,
privileges and restrictions thereof, including dividend rights, dividend rates,
conversion rights, voting rights, terms of redemption, redemption prices,
liquidation preferences and the number of shares constituting a series or the
designation of such series, without any further vote or action by our
shareholders. The issuance of preferred shares, while providing desirable
flexibility in connection with possible acquisitions and other corporate
purposes, could have the effect of delaying, deferring or preventing a change in
control of us without further action by the shareholders and may adversely
affect the market price of, and the voting and other rights of, the holders of
common shares. The issuance of preferred shares with voting and conversion
rights may adversely affect the voting power of the holders of common shares,
including the loss of voting control to others. We have no current plans to
issue any preferred shares. The conversion rate of the existing preferred shares
to common shares is 1:1. All outstanding shares will convert to common shares
upon the closing of this offering.

REGISTRATION RIGHTS

    Certain shareholders holding an aggregate of 27,566,806 shares are entitled
to rights with respect to registration of these shares under the securities act.
The rights are provided under the terms of an

                                       79
<PAGE>
agreement between us and the holders of registrable securities. Beginning six
months following the completion of this offering, holders of then outstanding
registrable securities may require on up to two occasions and Nortel Networks
may require on one occasion that we register their shares for public resale. We
are obligated to register these shares only if the outstanding registrable
securities have an anticipated public offering price of at least $5,000,000.
Also, holders of registrable securities who hold more than one percent of our
outstanding registerable securities may require, on one separate occasion in any
12 month period and four occasions in the aggregate, that shares for public
resale on Form F-3 or similar short-form registration if the value of the
securities to be registered is at least $1,000,000. Furthermore, in the event we
determine to register any of our securities under the Securities Act of 1933,
either for our own account or for the account of other security holders
exercising their registration rights, the holders of registrable securities are
entitled to include their common shares in the registration. The registration
rights are subject to conditions and limitations, among them our right to limit
the number of shares included in the registration which may reduce the number of
shares proposed to be registered in view of market conditions. These
registration rights are not triggered by this offering. All expenses in
connection with any registration, other than underwriting discounts and
commissions, will be borne by us. All registration rights will terminate five
years following the consummation of this offering.

ANTITAKEOVER EFFECTS OF SOME PROVISIONS OF MEMORANDUM OF ASSOCIATION AND
  BYE-LAWS

    The following provisions, summarized below, are generally expected to
discourage coercive takeover practices and inadequate takeover bids. These
provisions are also designed to encourage persons seeking to acquire control of
us to first negotiate with our board. We believe that the benefits of increased
protection resulting from our potential ability to negotiate with the proponent
of an unfriendly or unsolicited proposal to acquire or restructure us outweigh
the disadvantage of discouraging these proposals because we believe that the
negotiation of these proposals could result in an improvement of their terms.

ELECTION AND REMOVAL OF DIRECTORS

    Our board of directors is divided into three classes. The directors in each
class will serve for a three-year term, one class being elected each year by our
shareholders. This system of electing and removing directors may tend to
discourage a third party from making a tender offer or otherwise attempting to
obtain control of us because it generally makes it more difficult for
shareholders to replace a majority of the directors.

SHAREHOLDER MEETINGS

    Under our bye-laws, only the board of directors, the chairman of the board,
the president and any shareholder or group of shareholders holding greater than
10% of the voting shares may call special meetings of shareholders. Under
Bermuda law, shareholders may act by written consent only if the written consent
is unanimous.

REQUIREMENTS FOR ADVANCE NOTIFICATION OF SHAREHOLDER NOMINATIONS AND PROPOSALS

    Our bye-laws establish advance notice procedures with respect to shareholder
proposals and the nomination of candidates for election as directors, other than
nominations made by or at the direction of the board of directors or a committee
of the board. A minimum of 120 calendar days written notice is required. The
notice shall specify the place, day and time of the meeting, and the general
nature of the business to be considered. No business not referred to in the
notice shall be conducted at such meeting.

                                       80
<PAGE>
UNDESIGNATED PREFERRED SHARES

    The authorization of undesignated preferred shares makes it possible for the
board of directors to issue preferred shares with voting or other rights or
preferences that could impede the success of any attempt to change control of
us. These and other provisions may have the effect of deferring hostile
takeovers or delaying changes in control of us or our management.

AMENDMENT OF BYE-LAWS PROVISIONS

    The amendment of the above provisions relating to the election and removal
of directors, shareholder meetings and elimination of shareholder action by
written consent requires approval by holders of at least 66% of the outstanding
common shares.

NASDAQ NATIONAL MARKET LISTING

    We have been approved, subject to notice of issuance, for listing our shares
on the Nasdaq Stock Market's National Market under the symbol "IWAV."

TRANSFER AGENT

    The transfer agent and registrar for the common shares is Norwest Bank
Minnesota, N.A. Norwest's telephone number for shareholder inquiries is
(800) 468-9716.

                       CERTAIN BERMUDA LAW CONSIDERATIONS

    The following discussion is based on the advice of Conyers Dill & Pearman,
our Bermuda counsel. We have been designated as a non-resident for exchange
control purposes by the Bermuda Monetary Authority, Foreign Exchange Control,
whose permission for the issue and transfer of common shares has been obtained
subject to the common shares being listed on the Nasdaq National Market. This
Prospectus has been filed with the Registrar of Companies in Bermuda in
accordance with Bermuda law.

    The transfer of common shares between persons regarded as non-resident in
Bermuda for exchange control purposes and the issue of shares after the
completion of the offering to such persons may be effected without specific
consent under the Exchange Control Act, 1972 and regulations thereunder subject
to the common shares being listed on the Nasdaq National Market. Issues and
transfers of shares to any person regarded as resident in Bermuda for exchange
control purposes require specific prior approval under the Exchange Control Act,
1972.

    There are no limitations on the rights of persons regarded as non-residents
of Bermuda for foreign exchange control purposes owning common shares to hold or
vote their common shares. Because we have been designated as a non-resident for
Bermuda exchange control purposes, there are no restrictions on our ability to
transfer funds in and out of Bermuda or to pay dividends to United States
residents or other non-residents of Bermuda who are holders of common shares,
other than in respect of local Bermuda currency. In addition, because we have
been designated as a non-resident for Bermuda exchange control purposes, we do
not intend to maintain Bermuda dollar deposits and, accordingly, will not pay
dividends on the common shares in Bermuda currency.

    In accordance with Bermuda law, share certificates are issued only in the
names of corporations or individuals. In the case of an applicant acting in a
special capacity (for example, as an executor or trustee), certificates may, at
the request of the applicant, record the capacity in which the applicant is
acting. Notwithstanding the recording of any such special capacity, we are not
bound to investigate or incur any responsibility in respect of the proper
administration of any such estate or trust. We will take no notice of any trust
applicable to any of its common shares whether or not we had notice of the
trust.

    There is no minimum subscription which must be raised by this offering to
provide the sums required to be provided for under Section 28 of the Companies
Act 1981 of Bermuda.

                                       81
<PAGE>
                                    TAXATION

    We believe that a significant portion of our income will be earned in
Bermuda, which currently has no corporate income tax, or other countries with
favorable tax regimes such as Hong Kong and the Netherlands in which we or our
affiliates conduct activities or in which our customers are located. However,
this belief is based upon the anticipated nature and conduct of our business,
which may change, and upon our understanding of our position under the tax laws
of the various countries in which we have assets or conduct activities, which
position is subject to review and possible challenge by taxing authorities and
to possible changes in law which may have retroactive effect. The extent to
which certain taxing jurisdictions, including the United States, may require us
to pay tax or to make payments in lieu of tax cannot be determined in advance.
In addition, our operations and the payments due to us may be affected by
changes in taxation, including retroactive tax claims or assessments of
withholding on amounts payable to us or other taxes assessed at the source, in
excess of the taxation anticipated by us based on business contacts and
practices of ours and the current tax regimes. There can be no assurance that
these factors will not have a material adverse effect on us.

UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS

    We and our non-United States subsidiaries will be subject to United States
federal income tax at regular corporate rates, as well as branch profits tax, on
our income that is effectively connected with the conduct of a trade or business
within the United States, and will be required to file federal income tax
returns reflecting that income. We intend to conduct our operations so as to
reduce the amount of our effectively connected income. However, no assurance can
be given that the Internal Revenue Service will agree with the positions taken
by us in this regard. Moreover, our United States subsidiary will be subject to
United States federal income tax on its worldwide income regardless of its
source, subject to reduction by allowable foreign tax credits, and distributions
by the United States subsidiary to us will be subject to United States
withholding.

BERMUDA TAX CONSIDERATIONS

    Under current Bermuda law, we are not subject to tax on income or capital
gains. Furthermore, we obtained from the Minister of Finance of Bermuda under
the Exempted Undertakings Tax Protection Act 1966, an undertaking that, in the
event that Bermuda enacts any legislation imposing tax computed on profits,
income, any capital asset, gain or appreciation, or any tax in the nature of
estate duty or inheritance tax, then the imposition of the tax will not be
applicable to us or to any of our operations, or to our capital, or to our
capital shares, until March 28, 2016. This undertaking does not, however,
prevent the imposition of property taxes on any of our real property or
leasehold interests in Bermuda.

    We are required to pay to the Bermuda government an annual registration fee
based upon our assessable capital subject to a maximum fee of BD$26,500.

TAXATION OF SHAREHOLDERS

BERMUDA TAX CONSIDERATIONS

    Under current Bermuda law, no income, withholding or other taxes or stamp or
other duties are imposed upon the issue, transfer or sale of capital shares or
on any payments thereunder. See "Taxation--Bermuda Tax Considerations" for a
description of the undertaking on taxes obtained by us from the Minister of
Finance of Bermuda.

                                       82
<PAGE>
UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS

    The following is a summary of certain United States federal income tax
considerations that apply to the acquisition, ownership and disposition of our
common shares by United States shareholders as of the date hereof.

    Although the following summary does not purport to describe all of the tax
considerations that may be relevant to a prospective purchaser of our common
shares, this summary describes the material United States federal income tax
consequences to a United States shareholder. No assurance can be given that the
conclusions set out below would be sustained by a court if challenged by the
Internal Revenue Service. This summary deals only with common shares that are
held as capital assets by United States shareholders, and does not address tax
considerations applicable to United States shareholders that may be subject to
special tax rules, such as dealers or traders in securities, financial
institutions, insurance companies, tax-exempt entities, United States
shareholders that hold common shares as a part of a straddle, conversion
transaction, constructive sale or other arrangement involving more than one
position, United States shareholders that owned or are deemed to own 10% or more
of the total combined voting power of all classes of our voting shares, United
States shareholders that have a principal place of business or "tax home"
outside the United States or United States shareholders whose functional
currency is not the United States dollar. Further this summary does not address
the alternative minimum tax consequences of an investment in our common shares.

    The discussion below is based upon the provisions of the Internal Revenue
Code and regulations, rulings and judicial decisions thereunder as of the date
hereof; any such authority may be repealed, revoked or modified, perhaps with
retroactive effect, so as to result in federal income tax consequences different
from those discussed below.

    The discussion set out below is intended only as a summary of certain United
States federal income tax consequences of an investment in common shares.
Prospective investors are urged to consult their own tax advisors as to the tax
consequences of an investment in the common shares, including the application to
their particular situation of the tax considerations discussed below, as well as
the application of state, local or foreign tax laws. The statements of United
States federal income tax law set out below are based on the laws in force and
interpretations thereof as of the date of this prospectus, and are subject to
any changes occurring after that date.

    A United States shareholder of common shares means a holder that is:

    - a citizen or resident of the United States;

    - a corporation, partnership or other entity created or organized in or
      under the laws of the United States or any political subdivision thereof;
      or

    - an estate or trust the income of which is subject to United States federal
      income taxation regardless of its source.

    TAXATION OF DIVIDENDS.  Distributions received from us by United States
shareholders will constitute dividends for U.S. federal income tax purposes and
will be taxable in the United States as ordinary income to the extent of our
current or accumulated earnings and profits. Amounts paid as dividends that
exceed our current or accumulated earnings and profits will be treated first as
a non-taxable return of capital that reduces the United States shareholder's tax
basis in the common shares, and any amount in excess of the shareholder's U.S.
tax basis will be treated as either long-term or short-term capital gain,
depending on the shareholder's holding period for the common shares. Dividends
paid by us are not eligible for the dividends received deduction otherwise
allowed to United States shareholders on dividends from U.S. corporations.

    TAXATION OF CAPITAL GAINS.  A United States shareholder will recognize gain
or loss for U.S. federal income tax purposes upon the sale, exchange or other
disposition of common shares in an amount

                                       83
<PAGE>
equal to the difference between the amount realized from the sale, exchange or
other disposition and the shareholder's tax basis in the common shares. In most
cases, the gain or loss will be capital gain or loss, and will be long-term
capital gain or loss if such shareholder's holding period for the common shares
is more than one year. The deductibility of capital losses is restricted and may
only be used to reduce capital gains, except that individual taxpayers may
deduct annually $3,000 of capital loss in excess of their capital gains.

    U.S. INFORMATION REPORTING AND BACKUP WITHHOLDING.  Distributions made by us
with respect to our common shares and gross proceeds received from the
disposition of the common shares may be subject to certain information reporting
requirements to the Internal Revenue Service and to a 31% backup withholding
tax. However, backup withholding generally will not apply to payments made to a
United States shareholder who furnishes a correct taxpayer identification number
and provides certain other required information. If backup withholding applies,
the amount withheld is not an additional tax, but is credited against the
shareholder's United States federal income tax liability.

    PASSIVE FOREIGN INVESTMENT COMPANIES.  We will be classified as a passive
foreign investment company for United States federal income tax purposes if we
satisfy either of the following two tests:

    - 75% or more of our gross income is passive income; or

    - on average for the taxable year, 50% or more of our assets by value or by
      adjusted basis produce or are held for the production of passive income.

    We do not believe that we satisfy or, after the completion of this offering,
will satisfy either of the tests for passive foreign investment company status.
Because the determination of whether the common shares constitutes shares of a
passive foreign investment company will be based upon the composition of our
income and assets from time to time, there can be no assurance that we will not
be considered a passive foreign investment company for any future fiscal year.
If we are a passive foreign investment company for any taxable year, U.S.
holders would be required to either:

    - pay an interest charge together with tax calculated at maximum ordinary
      income rates on certain "excess distributions"; or

    - if a qualified electing fund election is made, to include in their taxable
      income certain undistributed amounts of our income.

    Each U.S. holder should consult its own tax advisor regarding the
advisability of making the qualified electing fund election.

                                       84
<PAGE>
                        SHARES ELIGIBLE FOR FUTURE SALE

    We cannot provide any assurance that after this offering has been completed
a significant public market for our common shares will develop or be sustained.
The sale of substantial numbers of our common shares in the public market, or
the possibility of a sale, could adversely affect prevailing market prices for
our common shares. Furthermore, only a limited number of our common shares
currently held by our shareholders will be available for sale shortly after this
offering because of contractual and legal restrictions on resale described
below. Future sales of substantial amounts of our shares in the public market
after these restrictions lapse could adversely affect the prevailing market
price and our ability to raise equity capital in the future.

    Upon completion of this offering and assuming no exercise after that date of
the underwriters' over-allotment option or of any outstanding options or
warrants, we expect to have 44,370,878 common shares outstanding based on shares
outstanding as of January 18, 2000.

    Of the common shares, 8,500,000 of the shares that we expect to sell in the
offering, and any common shares sold upon exercise of the underwriters'
over-allotment option, will be freely tradable without restriction under the
securities act. However, there will be trading restrictions imposed on
"affiliates" and "control persons" as defined under Rule 144. The remaining
common shares held by existing shareholders are restricted securities as that
term is defined in Rule 144 of the securities act. Restricted securities may be
sold in the public market only if registered or if they qualify for an exemption
from registration under Rule 144 promulgated under the securities act, which
rules are summarized below. As a result of the contractual restrictions
described below and the provisions of Rule 144, the restricted securities will
be eligible for sale in the public market immediately following the offering
subject to the expiration of 180-day lock-up agreements with representatives of
the underwriters and to volume limitations and other conditions under Rule 144.
Following this offering, the holders of an aggregate of 27,566,806 of the
outstanding common shares and 7,286,594 common shares issuable upon the exercise
of warrants have the right to require us to register their shares for sale upon
meeting requirements to which the parties have previously agreed. See
"Description of Share Capital--Registration Rights" for additional information
regarding registration rights.

    The following table indicates approximately when the 43,157,472 of our
common shares, held by existing shareholders, that are not being sold in the
offering but which will be outstanding at the time the offering is complete will
be eligible for sale into the public market:

<TABLE>
<CAPTION>
ELIGIBILITY OF RESTRICTED SHARES FOR SALE IN PUBLIC MARKET
- ----------------------------------------------------------
<S>                                                           <C>
At effective date...........................................           0
90 days after effective date................................           0
180 days after effective date...............................  28,725,805
After 180 days post-effective date..........................  14,431,667
</TABLE>

    The shares eligible for sale includes shares outstanding as of January 18,
2000 and assumes conversion of all outstanding preferred shares into common
shares and the exercise of the 2,000,000 preferred and 7,286,594 common warrants
outstanding as of January 18, 2000.

LOCK-UP AGREEMENTS

    Our officers and directors and substantially all our existing shareholders
have signed lock-up agreements under which they agreed not to dispose of or
hedge any common shares or securities convertible into or exchangeable for
common shares for a period of 180 days from the date of this prospectus.
Dispositions can be made sooner with the prior written consent of Salomon Smith
Barney Inc.

                                       85
<PAGE>
OPTIONS AND WARRANTS

    As of January 18, 2000, a further 1,818,867 and 300,000 of the common shares
will be reserved for future issuance pursuant to our 1999 option plan and 1999
employee share purchase plan, respectively. An aggregate of 1,727,697 common
shares issuable upon the exercise of the outstanding options will be vested
180 days following the date of this prospectus. At the date of the offering, a
total of 1,248,813 shares issuable on the exercise of options held by employees
shall be vested and exercisable and not subject to the lock-up agreements. We
intend to file, shortly after to effectiveness of this offering, a registration
statement on Form F-3 or F-8 under the securities act covering all common shares
reserved for issuance under the share plans and subject to outstanding options
under our 1994 stock plan. Substantially all of the common shares issuable upon
exercise of outstanding options are subject to 180-day lock-up agreements with
the representatives of the underwriters.

    At the date of the offering, none of the shares issuable on exercise of
outstanding warrants will be eligible for sale. After 180 days following the
date of the prospectus upon the expiration of the lock-up agreements, 9,478,805
of the common shares issuable on exercise of the outstanding warrants will first
become available for sale in the public markets. The warrants expire prior to
March 3, 2004.

    Outstanding warrants to purchase 2,000,000 preferred shares and 1,132,874
common shares will expire on the closing of the offering if not exercised
earlier. We have received commitments from the preferred warrant holder and
holders of warrants to purchase 188,410 common shares that they intend to
exercise their warrants. The exercise price of these warrants is less than the
minimum estimated initial public offering price per share.

RULE 144

    In general, under Rule 144, as in effect on the date of this prospectus, any
person who has beneficially owned restricted securities for at least one year
will be entitled to sell in any three-month period a number of shares that does
not exceed the greater of:

    - 1% of the then outstanding common shares which are approximately 440,000
      shares immediately after the offering; or

    - the average weekly trading volume of our common shares on the Nasdaq
      National Market during the four calendar weeks immediately preceding the
      date on which notice of the sale is filed with the SEC. Sales of
      restricted securities pursuant to Rule 144 are subject to certain
      requirements relating to manner of sale, notice and availability of
      current public information about us. Our affiliates must also comply with
      the restrictions and requirements of Rule 144, other than the one-year
      holding period requirement, in order to sell common shares which are not
      restricted securities.

RULE 144(K)

    Under Rule 144(k), a person who is not deemed to have been one of our
"affiliates" at any time during the 90 days preceding a sale, and who has
beneficially owned the shares proposed to be sold for at least two years,
generally including the holding period of any prior owner other than an
"affiliate," is entitled to sell those shares without complying with the manner
of sale, notice filing, volume limitation or notice provisions of Rule 144.
Therefore, unless otherwise restricted, "144(k) shares" may be sold immediately
upon the completion of this offering.

RULE 701

    Subject to certain limitations on the aggregate offering price of a
transaction and other conditions, Rule 701 may be relied upon with respect to
the resale of securities originally purchased from us by employees, directors,
officers, consultants or advisers between May 20, 1988, the effective date of

                                       86
<PAGE>
Rule 701, and the date the issuer becomes subject to the reporting requirements
of the securities exchange act, pursuant to written compensatory benefit plans
or written contracts relating to the compensation of such persons. In addition,
the SEC has indicated that Rule 701 will apply to typical stock options granted
by an issuer before it becomes subject to the reporting requirements of the
exchange act, along with the shares acquired upon exercise of such options
beginning May 20, 1988. Securities issued in reliance on Rule 701 are restricted
securities and, subject to the contractual restrictions described above,
beginning 90 days after the date of this prospectus, such securities may be
sold:

    - by persons other than our affiliates, subject only to the manner of sale
      provisions of Rule 144; and

    - by our affiliates under Rule 144 without compliance with its one-year
      minimum holding period requirements.

                                       87
<PAGE>
                                  UNDERWRITING

    Subject to the terms and conditions stated in the underwriting agreement
dated the date hereof, each of the underwriters named below has severally agreed
to purchase, and we have agreed to sell to the underwriters, the respective
number of common shares set forth opposite the name of each underwriter below:

<TABLE>
<CAPTION>
                                                                NUMBER OF
NAME                                                          COMMON SHARES
- ----                                                          -------------
<S>                                                           <C>
Salomon Smith Barney Inc....................................
Banc of America Securities LLC..............................
SG Cowen Securities Corporation.............................
                                                                ---------

  Total.....................................................    8,500,000
                                                                =========
</TABLE>

    The underwriting agreement provides that the obligations of the several
underwriters to purchase the common shares included in this offering are subject
to the approval of legal matters by counsel and to other conditions. The
underwriters are obligated to purchase all of the common shares offered hereby
other than those covered by the over-allotment option described below if they
purchase any of the common shares.

    The underwriters, for whom Salomon Smith Barney Inc., Banc of America
Securities LLC and SG Cowen Securities Corporation are acting as
representatives, initially propose to offer some of the common shares directly
to the public at the public offering price set forth on the cover page of this
prospectus and some of the common shares to various securities dealers at the
public offering price less a concession not exceeding $      per common share.
The underwriters may allow, and these dealers may reallow, a concession not
exceeding $      per common share to certain brokers and dealers. After the
initial offering of the common shares to the public, the public offering price
and other selling terms may from time to time be varied by the representatives.
The representatives have advised us that the underwriters do not intend to
confirm any sales to any accounts over which they exercise discretionary
authority.

    We have granted the underwriters an option, exercisable for 30 days after
the date of this prospectus, to purchase up to an aggregate of 1,275,000
additional common shares at the public offering price less the underwriting
discount. The underwriters may exercise this option solely to cover
over-allotments, if any, in connection with this offering. To the extent that
the underwriters exercise this option, each of them will be obligated, subject
to certain conditions, to purchase a number of additional shares approximately
proportionate to the underwriters' initial commitment.

    interWAVE, each of our officers and directors and our other shareholders
have agreed with the representatives that, for a period of 180 days after the
date of this prospectus, they will not, without the prior written consent of
Salomon Smith Barney Inc., dispose of or hedge any common shares or any of our
securities convertible into or exchangeable for common shares other than, in the
case of interWAVE, shares pursuant to any employee stock option plan, stock
ownership plan or dividend reinvestment plan of interWAVE in effect at the time
the underwriting agreement is signed and common stock issuable upon the
conversion of securities or the exercise of warrants outstanding at the time the
underwriting agreement is signed, and in the case of the officers, directors and
shareholders, shares of common stock disposed of as bona fide gifts approved by
Salomon Smith Barney Inc. Salomon Smith Barney Inc. in its sole discretion may
release any of the securities subject to the lock-up agreements at any time
without notice. The release of any lock-up is considered on a case by case
basis. Factors in deciding whether to release shares may include the length of
time before the lock-up expires, the trading price of the common stock and
whether the person seeking the release is an officer,

                                       88
<PAGE>
director or affiliate of interWAVE. Salomon Smith Barney Inc. has no current
intention to release shares subject to the lock-up agreements.

    The underwriters have reserved for sale, at the initial public offering
price, up to 1,500,000 common shares for customers, directors, employees and
other persons associated with us who have expressed an interest in purchasing
common shares in the offering. This group may include Alcatel which may purchase
approximately 600,000 common shares and entities associated with the principal
stockholder of Hutchison Whampoa Limited, which is the corporate parent of
Holodeck Limited, one of our shareholders which may purchase approximately
500,000 common shares. The number of shares available for sale to the general
public in the offering will be reduced to the extent these persons purchase
these reserved shares. Any reserved shares not so purchased will be offered by
the underwriters to the general public on the same terms as the other shares.

    Prior to this offering, there has been no public market for the common
shares. Consequently, the initial public offering price for the common shares
was determined by negotiations between us and the representatives. Among the
factors considered in determining the initial public offering price were our
record of operations, our current financial condition, our future prospects, our
markets, the economic conditions in and future prospects for the industry in
which we compete, our management, and currently prevailing general conditions in
the equity securities markets, including current market valuations of publicly
traded companies considered comparable to us. We cannot assure you, however,
that the prices at which the shares will sell in the public market after this
offering will not be lower than the price at which they are sold by the
underwriters or that an active trading market in the common shares will develop
and continue after the offering.

    We have applied to have our common shares included for quotation on the
Nasdaq Stock Market's National Market under the symbol "IWAV."

    The following table shows the underwriting discounts and commissions to be
paid to the underwriters by us in connection with this offering. These amounts
are shown assuming both no exercise and full exercise of the underwriters'
option to purchase additional common shares.

<TABLE>
<CAPTION>
                                                            PAID BY INTERWAVE
                                                       ---------------------------
                                                       NO EXERCISE   FULL EXERCISE
                                                       -----------   -------------
<S>                                                    <C>           <C>
Per share............................................       $              $
Total................................................       $              $
</TABLE>

    The expenses of the offering, exclusive of the underwriting discounts and
commissions, are estimated to be $1,350,000 and are payable entirely by us.

    The expenses consist of the following:

    - an SEC registration fee of $30,967;

    - an NASD filing fee of $12,230;

    - a Nasdaq application fee of $90,000;

    - estimated blue sky qualification fees and expenses of $10,000;

    - estimated printing and engraving expenses of $350,000;

    - estimated legal fees and expenses of $350,000;

    - estimated accounting fees and expenses of $300,000;

    - estimated transfer agent and registrar fees of $25,000; and

    - estimated miscellaneous fees and expenses of $181,803.

                                       89
<PAGE>
    In connection with the offering, Salomon Smith Barney Inc. on behalf of the
underwriters, may over-allot, or engage in syndicate covering transactions,
stabilizing transactions and penalty bids. Over-allotment involves syndicate
sales of common shares in excess of the number of shares to be purchased by the
underwriters in the offering, which creates a syndicate short position.
Syndicate covering transactions involve purchases of the common shares in the
open market after the distribution has been completed in order to cover
syndicate short positions. Stabilizing transactions consist of certain bids or
purchases of common shares made for the purpose of preventing or retarding a
decline in the market price of the common shares while the offering is in
progress. Penalty bids permit the underwriters to reclaim a selling concession
from a syndicate member when Salomon Smith Barney Inc., in covering syndicate
short positions or making stabilizing purchases, repurchases shares originally
sold by that syndicate member. These activities may cause the price of the
common shares to be higher than the price that otherwise would exist in the open
market in the absence of such transactions. These transactions may be effected
on the Nasdaq National Market or in the over-the-counter market, or otherwise
and, if commenced, may be discontinued at any time.

    The prospectus may be used by underwriters and dealers in connection with
offers and sales of the common shares, including common shares initially sold
outside the United States, to persons located in the United States.

    We have agreed to indemnify the several underwriters against certain
liabilities, including liabilities under the securities act, or to contribute to
payments the underwriters may be required to make with respect to any of those
liabilities.

    Initial sales of the common shares offered in the United States will be
settled in U.S. dollars. Subsequent trading of common shares effected on the
Nasdaq National Market will be settled in U.S. dollars in accordance with the
normal settlement practices of the Nasdaq.

                                 LEGAL MATTERS

    The validity of the common shares offered hereby and other matters of
Bermuda law relating to the offering are being passed upon for us by Conyers
Dill & Pearman, Bermuda. Certain legal matters relating to the offering are
being passed upon for us by Wilson Sonsini Goodrich & Rosati, Professional
Corporation, Palo Alto, California, with respect to U.S. law. Certain legal
matters relating to the offering are being passed upon for the underwriters by
Brobeck, Phleger & Harrison LLP, San Francisco, California.

                                    EXPERTS

    The consolidated financial statements of interWAVE Communications
International, Ltd. and subsidiaries as of June 30, 1999 and 1998, and for each
of the years in the three-year period ended June 30, 1999, have been included in
this prospectus and registration statement in reliance upon the report of
KPMG LLP, independent auditors, appearing elsewhere herein, and upon the
authority of said firm as experts in accounting and auditing.

                      WHERE YOU CAN FIND MORE INFORMATION

    We have filed with the SEC, 450 Fifth Street, N.W., Washington, D.C. 20549,
a registration statement on Form F-1 under the U.S. securities act with respect
to the common shares offered by this prospectus. This prospectus, which forms a
part of the registration, does not contain all the information included in the
registration statement. Certain information is omitted and you should refer to
the registration statement and its exhibits.

    Any statement in this prospectus about any of our contracts or other
documents is only a summary of the material provisions of the contract or
document. If the contract or document is filed as an

                                       90
<PAGE>
exhibit to the registration statement, the contract or document is deemed to
modify the description contained in this prospectus. You must review the
exhibits themselves for a complete description of the contract or document.

    You may review a copy of the registration statement, including exhibits and
schedules filed with it, at the SEC's public reference facilities in Room 1024,
Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C., 20549, and at the
regional offices of the SEC located at 7 World Trade Center, 13(th) Floor, New
York, New York 10048 and at the Northwestern Atrium Center, 500 West Madison
Street, Suite 1400, Chicago, Illinois 60661. You may also obtain copies of such
materials from the Public Reference Section of the SEC, Room 1024, Judiciary
Plaza, 450 Fifth Street, N.W., Washington, D.C., 20549, at prescribed rates. You
may call the SEC at 1-800-SEC-0330 for further information on the public
reference rooms. The SEC maintains a web site (http://www.sec.gov) that contains
reports, proxy and information statements and other information regarding
registrants such as interWAVE that file electronically with the SEC. We have
applied for quotation of the common shares on the Nasdaq national market, and
reports and other information about us may also be inspected at the offices of
the National Association of Securities Dealers, Inc., 9513 Key West Avenue,
Rockville, Maryland 20850.

    You may read and copy any reports, statements or other information that we
file with the SEC at the addresses indicated above, and you may also access them
electronically at the web site set forth above. These SEC filings are also
available to the public from commercial document retrieval services.

    Prior to this offering, we have not been required to file reports under the
exchange act. Following consummation of the offering, we will be required to
file reports and other information with the SEC under the exchange act. You are
invited to read and copy any reports, statements or other information that we
file with the SEC.

    We intend to provide to our shareholders proxy statements and annual reports
prepared in accordance with applicable law. Our annual reports will contain
audited consolidated financial statements following the end of each fiscal year,
and we will make available quarterly reports containing unaudited summary
consolidated financial information for each of the first three fiscal quarters
of each fiscal year. As a foreign private issuer under the exchange act, we will
be exempt from provisions of that act which require us to provide proxy
statements in prescribed form to shareholders and which relate to short swing
profit reporting and liability.

                                       91
<PAGE>
                  INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD.

                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

<TABLE>
<CAPTION>
                                                                PAGE
                                                              --------
<S>                                                           <C>
Report of KPMG LLP, Independent Auditors....................     F-2

Consolidated Balance Sheet as of June 30, 1998 and 1999.....     F-3

Consolidated Statement of Operations for the years ended
  June 30, 1997, 1998 and 1999..............................     F-4

Consolidated Statements of Stockholders' Equity and
  Comprehensive loss for the years ended June 30, 1997, 1998
  and 1999..................................................     F-5

Consolidated Statement of Cash Flows for the years ended
  June 30, 1997, 1998 and 1999..............................     F-7

Notes to Consolidated Financial Statements..................     F-9
</TABLE>

                                      F-1
<PAGE>
                          INDEPENDENT AUDITORS' REPORT

The Board of Directors
interWAVE Communications International, Ltd.:

    We have audited the accompanying consolidated balance sheets of interWAVE
Communications International, Ltd. and subsidiaries as of June 30, 1999 and
1998, and the related consolidated statements of operations, stockholders'
equity and comprehensive loss, and cash flows for each of the years in the three
year period ended June 30, 1999. These consolidated financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these consolidated financial statements based on our audits.

    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

    In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of interWAVE
Communications International, Ltd. and subsidiaries as of June 30, 1999 and
1998, and the results of their operations and their cash flows for each of the
years in the three year period ended June 30, 1999 in conformity with generally
accepted accounting principles.

                                                 /s/ KPMG LLP

San Francisco, California
September 10, 1999

                                      F-2
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

                          CONSOLIDATED BALANCE SHEETS

                       (IN THOUSANDS, EXCEPT SHARE DATA)

<TABLE>
<CAPTION>
                                                                                                       SEPTEMBER 30,
                                                                 JUNE 30,                                   1999
                                                           --------------------                        --------------
                                                             1998       1999      SEPTEMBER 30, 1999
                                                           --------   ---------   ------------------     PRO FORMA
                                                                                     (UNAUDITED)        (UNAUDITED)
<S>                                                        <C>        <C>         <C>                  <C>
                                    ASSETS
Current assets:
  Cash and cash equivalents..............................  $  7,340   $   3,919       $  12,988           $ 56,327
  Short-term investments.................................        75          --              --                 --
  Trade receivables, net of allowance of $125, $255 and
    $173 at June 30, 1998 and 1999, and September 30,
    1999, respectively...................................     5,776       6,999           6,540              6,540
  Inventories............................................     3,949       6,339           5,346              5,346
  Prepaid expenses and other current assets..............       893         844           1,192              1,192
                                                           --------   ---------       ---------           --------
    Total current assets.................................    18,033      18,101          26,066             69,405
Property and equipment, net..............................     6,622       5,334           5,524              5,524
Intangibles, net.........................................     3,023       2,855           2,722              2,722
Other assets.............................................     1,935         278             768                768
                                                           --------   ---------       ---------           --------
    Total assets.........................................  $ 29,613   $  26,568       $  35,080           $ 78,419
                                                           ========   =========       =========           ========
                     LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
  Accounts payable.......................................  $  4,526   $   2,757       $   3,538           $  3,538
  Accrued expenses and other current liabilities.........     1,515       2,354           2,237              2,237
  Convertible notes......................................        --       8,754              --                 --
  Current portion of notes payable.......................       540         590             680                680
  Deferred revenue.......................................       511         323             157                157
  Income taxes payable...................................       171         215             215                215
  Customer deposits......................................        --       1,500           1,500              1,500
                                                           --------   ---------       ---------           --------
    Total current liabilities............................     7,263      16,493           8,327              8,327
Deferred revenue, long-term..............................     2,087          --              --                 --
Notes payable, net of current portion....................     1,074         486             261                261
Other long-term liabilities..............................       736         789             924                924
                                                           --------   ---------       ---------           --------
    Total liabilities....................................    11,160      17,768           9,512              9,512
Commitments and contingencies
Shareholders' equity:
  Convertible preferred shares, $0.83 par value;
    28,250,000 shares authorized at June 30, 1998 and
    56,500,000 shares authorized at June 30, 1999 and
    September 30, 1999, respectively; 19,531,453,
    20,177,168 and 23,479,530 shares issued and
    outstanding at June 30, 1998 and 1999 and
    September 30, 1999, respectively; aggregate
    liquidation preference of $90,488, $95,008 and
    $118,124 at June 30, 1998 and 1999 and
    September 30, 1999, respectively.....................    16,211      16,747          19,488                 --
  Common shares, $0.001 par value; 100,000,000 shares
    authorized; 4,793,747, 5,071,921 and
    6,074,019 shares issued and outstanding at June 30,
    1998 and 1999 and September 30, 1999, respectively...         5           5               6                 36
  Additional paid-in capital.............................    95,400     109,712         145,316            208,113
  Deferred stock compensation............................    (4,830)     (3,717)        (12,090)           (12,090)
  Services receivable from shareholder...................    (3,143)     (2,071)         (5,542)            (5,542)
  Subscriptions and amounts receivable from
    shareholders.........................................        --      (2,284)           (416)              (416)
  Accumulated other comprehensive income.................        62         128              51                 51
  Accumulated deficit....................................   (85,252)   (109,720)       (121,245)          (121,245)
                                                           --------   ---------       ---------           --------
    Total shareholders' equity...........................    18,453       8,800          25,568             68,907
                                                           --------   ---------       ---------           --------
    Total liabilities and shareholders' equity...........  $ 29,613   $  26,568       $  35,080           $ 78,419
                                                           ========   =========       =========           ========
</TABLE>

          See accompanying notes to consolidated financial statements.

                                      F-3
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

                     CONSOLIDATED STATEMENTS OF OPERATIONS

                     (IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
                                                                                     THREE
                                                                                 MONTHS ENDED
                                               FISCAL YEAR ENDED JUNE 30,        SEPTEMBER 30,
                                             ------------------------------   -------------------
                                               1997       1998       1999       1998       1999
                                             --------   --------   --------   --------   --------
                                                                                  (UNAUDITED)
<S>                                          <C>        <C>        <C>        <C>        <C>
Net revenues...............................  $  1,841   $ 12,995   $ 17,293   $  4,487   $  5,377
Cost of revenues, excluding deferred
  compensation amortization amounts........     3,617     12,251     12,531      2,477      3,973
                                             --------   --------   --------   --------   --------
    Gross profit (loss)....................    (1,776)       744      4,762      2,010      1,404
                                             --------   --------   --------   --------   --------
Operating expenses:
  Research and development, excluding
    deferred compensation amortization
    amounts................................    14,169     15,300     14,174      3,872      3,562
  Selling, general and administrative,
    excluding deferred compensation
    amortization amounts...................     6,923      7,742      7,440      1,759      2,088
  Amortization of deferred stock
    compensation*..........................     6,377      7,604      5,254      1,523      3,324
                                             --------   --------   --------   --------   --------
    Total costs and expenses...............    27,469     30,646     26,868      7,154      8,974
                                             --------   --------   --------   --------   --------
    Operating loss.........................   (29,245)   (29,902)   (22,106)    (5,144)    (7,570)
Interest expense...........................      (479)    (1,115)    (2,403)       (49)    (1,959)
Other income (loss), net...................       653        415        154        102         59
                                             --------   --------   --------   --------   --------
    Net loss before income taxes...........   (29,071)   (30,602)   (24,355)    (5,091)    (9,470)
Income tax expense.........................       111        220        113         --         --
                                             --------   --------   --------   --------   --------
    Net loss...............................  $(29,182)  $(30,822)  $(24,468)  $ (5,091)  $ (9,470)
                                             --------   --------   --------   --------   --------
Dividend effect of beneficial conversion
  feature to H-1 shareholders..............        --         --         --         --     (2,055)
                                             --------   --------   --------   --------   --------
Net loss attributable to common
  shareholders.............................  $(29,182)  $(30,822)  $(24,468)  $ (5,091)  $(11,525)
                                             ========   ========   ========   ========   ========
Basic and diluted net loss per share.......  $  (7.12)  $  (6.68)  $  (4.96)  $  (1.05)  $  (2.10)
Weighted average common shares
  outstanding..............................     4,099      4,614      4,934      4,840      5,480

(*)Amortization of deferred stock
  compensation:
  Cost of revenues.........................  $    175   $  1,512   $    893   $    275   $    453
  Research and development.................     4,533      3,874      2,555        836      1,468
  Selling, general and administrative......     1,669      2,218      1,806        412      1,403
                                             --------   --------   --------   --------   --------
    Total..................................  $  6,377   $  7,604   $  5,254   $  1,523   $  3,324
                                             ========   ========   ========   ========   ========
</TABLE>

          See accompanying notes to consolidated financial statements.

                                      F-4
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES
     CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE LOSS
                       (IN THOUSANDS, EXCEPT SHARE DATA)
  FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999 AND (UNAUDITED) THREE MONTH
                           ENDED SEPTEMBER 30, 1999.
<TABLE>
<CAPTION>

                                                     CONVERTIBLE                                              SERVICES
                                                   PREFERRED STOCK          COMMON STOCK        ADDITIONAL   RECEIVABLE
                                                ---------------------   ---------------------    PAID-IN        FROM
                                                  SHARES      AMOUNT      SHARES      AMOUNT     CAPITAL     SHAREHOLDER
                                                ----------   --------   ----------   --------   ----------   -----------
<S>                                             <C>          <C>        <C>          <C>        <C>          <C>
Balances as of June 30, 1996..................  14,027,000   $11,642     3,940,977     $  4      $ 43,602      $    --
Issuance of Series E, less issuance costs of
  $75.........................................     290,167       241            --       --         2,584           --
Issuance of Series F, less issuance costs of
  $75.........................................   1,500,000     1,245            --       --        15,979           --
Exercise of stock options.....................          --        --       334,963       --            85           --
Deferred stock compensation related to stock
  option grants...............................          --        --            --       --         8,617           --
Amortization of deferred stock compensation...          --        --            --       --            --           --
Stock-based compensation to nonemployees......          --        --            --       --            44           --
Comprehensive loss:
  Net loss....................................          --        --            --       --            --           --
  Foreign currency translation adjustment.....          --        --            --       --            --           --
Total comprehensive loss......................
                                                ----------   -------    ----------     ----      --------      -------
Balances as of June 30, 1997..................  15,817,167    13,128     4,275,940        4        70,911           --
Issuance of Series G and warrants less
  issuance costs of $1,756....................   3,714,286     3,083            --       --        19,661       (3,500)
Issuance of common stock......................          --        --        70,000       --           428           --
Exercise of stock options.....................          --        --       447,807        1           160           --
Performance of services.......................          --        --            --       --            --          357
Deferred stock compensation related to stock
  option grants...............................          --        --            --       --         4,240           --
Amortization of deferred stock compensation...          --        --            --       --            --           --
Comprehensive loss:
  Net loss....................................          --        --            --       --            --           --
  Foreign currency translation adjustment.....          --        --            --       --            --           --
Total comprehensive loss......................
                                                ----------   -------    ----------     ----      --------      -------
Balances as of June 30, 1998..................  19,531,453    16,211     4,793,747        5        95,400       (3,143)
Issuance of Series H, less issuance costs of
  $7..........................................     360,000       299            --       --         2,214           --
Issuance of Series H1.........................     285,715       237            --       --         1,763           --
Exercise of stock options.....................          --        --       278,174       --           153           --
Performance of services.......................          --        --            --       --            --        1,072
Issuance of warrants in connection with bridge
  loan........................................          --        --            --       --         5,878           --
Deferred stock compensation related to stock
  option grants...............................          --        --            --       --         4,141           --
Amortization of deferred stock compensation...          --        --            --       --            --           --
Stock-based compensation to non-employees.....          --        --            --       --           163           --
Comprehensive loss:
  Net loss....................................          --        --            --       --            --           --
  Foreign currency translation adjustment.....          --        --            --       --            --           --
Total comprehensive loss......................
                                                ----------   -------    ----------     ----      --------      -------
Balances as of June 30, 1999..................  20,177,168   $16,747     5,071,921     $  5      $109,712      $(2,071)
                                                ==========   =======    ==========     ====      ========      =======

<CAPTION>
                                                SUBSCRIPTIONS
                                                 AND AMOUNTS                     ACCUMULATED
                                                 RECEIVABLE       DEFERRED          OTHER                          TOTAL
                                                    FROM            STOCK       COMPREHENSIVE   ACCUMULATED    SHAREHOLDERS'
                                                 SHAREHOLDER    COMPENSATION       INCOME         DEFICIT         EQUITY
                                                -------------   -------------   -------------   ------------   -------------
<S>                                             <C>             <C>             <C>             <C>            <C>
Balances as of June 30, 1996..................     $    --         $(5,954)         $ --         $ (25,248)      $  24,046
Issuance of Series E, less issuance costs of
  $75.........................................          --              --            --                --           2,825
Issuance of Series F, less issuance costs of
  $75.........................................          --              --            --                --          17,224
Exercise of stock options.....................          --              --            --                --              85
Deferred stock compensation related to stock
  option grants...............................          --          (8,617)           --                --              --
Amortization of deferred stock compensation...          --           6,377            --                --           6,377
Stock-based compensation to nonemployees......          --              --            --                --              44
Comprehensive loss:
  Net loss....................................          --              --            --           (29,182)        (29,182)
  Foreign currency translation adjustment.....          --              --            28                --              28

Total comprehensive loss......................                                                          --
                                                   -------         -------          ----         ---------       ---------
Balances as of June 30, 1997..................          --          (8,194)           28           (54,430)         21,447
Issuance of Series G and warrants less
  issuance costs of $1,756....................          --              --            --                --          19,244
Issuance of common stock......................          --              --            --                --             428
Exercise of stock options.....................          --              --            --                --             161
Performance of services.......................          --              --            --                --             357
Deferred stock compensation related to stock
  option grants...............................          --          (4,240)           --                --              --
Amortization of deferred stock compensation...          --           7,604            --                --           7,604
Comprehensive loss:
  Net loss....................................          --              --            --           (30,822)        (30,822)
  Foreign currency translation adjustment.....          --              --            34                --              34

Total comprehensive loss......................
                                                   -------         -------          ----         ---------       ---------
Balances as of June 30, 1998..................          --          (4,830)           62           (85,252)         18,453
Issuance of Series H, less issuance costs of
  $7..........................................          --              --            --                             2,513
Issuance of Series H1.........................      (2,000)             --            --                --              --
Exercise of stock options.....................          --              --            --                --             153
Performance of services.......................          --              --            --                --           1,072
Issuance of warrants in connection with bridge
  loan........................................        (284)             --            --                --           5,594
Deferred stock compensation related to stock
  option grants...............................          --          (4,141)           --                --              --
Amortization of deferred stock compensation...          --           5,254            --                --           5,254
Stock-based compensation to non-employees.....          --              --            --                --             163
Comprehensive loss:
  Net loss....................................          --              --            --           (24,468)        (24,468)
  Foreign currency translation adjustment.....          --              --            66                --              66

Total comprehensive loss......................
                                                   -------         -------          ----         ---------       ---------
Balances as of June 30, 1999..................     $(2,284)        $(3,717)         $128         $(109,720)      $   8,800
                                                   =======         =======          ====         =========       =========

<CAPTION>

                                                COMPREHENSIVE
                                                     LOSS
                                                --------------
<S>                                             <C>
Balances as of June 30, 1996..................
Issuance of Series E, less issuance costs of
  $75.........................................
Issuance of Series F, less issuance costs of
  $75.........................................
Exercise of stock options.....................
Deferred stock compensation related to stock
  option grants...............................
Amortization of deferred stock compensation...
Stock-based compensation to nonemployees......
Comprehensive loss:
  Net loss....................................     $(29,182)
  Foreign currency translation adjustment.....           28
                                                   --------
Total comprehensive loss......................     $(29,154)
                                                   ========
Balances as of June 30, 1997..................
Issuance of Series G and warrants less
  issuance costs of $1,756....................
Issuance of common stock......................
Exercise of stock options.....................
Performance of services.......................
Deferred stock compensation related to stock
  option grants...............................
Amortization of deferred stock compensation...
Comprehensive loss:
  Net loss....................................      (30,822)
  Foreign currency translation adjustment.....           34
                                                   --------
Total comprehensive loss......................     $(30,788)
                                                   ========
Balances as of June 30, 1998..................
Issuance of Series H, less issuance costs of
  $7..........................................
Issuance of Series H1.........................
Exercise of stock options.....................
Performance of services.......................
Issuance of warrants in connection with bridge
  loan........................................
Deferred stock compensation related to stock
  option grants...............................
Amortization of deferred stock compensation...
Stock-based compensation to non-employees.....
Comprehensive loss:
  Net loss....................................      (24,468)
  Foreign currency translation adjustment.....           66
                                                   --------
Total comprehensive loss......................     $(24,402)
                                                   ========
Balances as of June 30, 1999..................

</TABLE>

          See accompanying notes to consolidated financial statements.

                                      F-5
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES
     CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE LOSS
                                  (CONTINUED)
                       (IN THOUSANDS, EXCEPT SHARE DATA)
  FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999 AND (UNAUDITED) THREE MONTH
                           ENDED SEPTEMBER 30, 1999.
<TABLE>
<CAPTION>

                                                     CONVERTIBLE                                              SERVICES
                                                   PREFERRED STOCK          COMMON STOCK        ADDITIONAL   RECEIVABLE
                                                ---------------------   ---------------------    PAID-IN        FROM
                                                  SHARES      AMOUNT      SHARES      AMOUNT     CAPITAL     SHAREHOLDER
                                                ----------   --------   ----------   --------   ----------   -----------
<S>                                             <C>          <C>        <C>          <C>        <C>          <C>
Balances as of June 30, 1999..................  20,177,168   $16,747     5,071,921     $  5      $109,712      $(2,071)
Unaudited activity:
Conversion of the bridge financing to
  Series H1 preferred stock and warrants......   1,872,362     1,555            --       --         9,291           --
Issuance of Series H1, less issuance cost of
  $766........................................   1,430,000     1,186            --       --        10,113           --
Exercise of stock options and issuance of
  shares for services.........................          --        --     1,002,098        1           382           --
Cash received from issuance of preferred
  stock.......................................          --        --            --       --            --           --
Deferred stock compensation related to stock
  option grants...............................          --        --            --       --        11,697           --
Amortization of deferred stock compensation...          --        --            --       --            --           --
Exchange of Warrants in connection with joint
  sales agreement.............................          --        --            --       --         4,121       (3,646)
Performance of services.......................          --        --            --       --            --          175
Comprehensive loss
  Net loss....................................          --        --            --       --            --           --
  Foreign currency translation adjustment.....          --        --            --       --            --           --
Total comprehensive loss......................          --        --            --       --            --           --
                                                ----------   -------    ----------     ----      --------      -------
Balances as of September 30, 1999
  (unaudited).................................  23,479,530   $19,488     6,074,019     $  6      $145,316      $(5,542)
                                                ==========   =======    ==========     ====      ========      =======

<CAPTION>
                                                SUBSCRIPTIONS
                                                 AND AMOUNTS                     ACCUMULATED
                                                 RECEIVABLE       DEFERRED          OTHER                          TOTAL
                                                    FROM            STOCK       COMPREHENSIVE   ACCUMULATED    SHAREHOLDERS'
                                                 SHAREHOLDER    COMPENSATION       INCOME         DEFICIT         EQUITY
                                                -------------   -------------   -------------   ------------   -------------
<S>                                             <C>             <C>             <C>             <C>            <C>
Balances as of June 30, 1999..................     $(2,284)       $ (3,717)         $128         $(109,720)       $ 8,800
Unaudited activity:
Conversion of the bridge financing to
  Series H1 preferred stock and warrants......          --              --            --                --         10,846
Issuance of Series H1, less issuance cost of
  $766........................................          --              --            --            (2,055)         9,244
Exercise of stock options and issuance of
  shares for services.........................        (132)             --            --                --            251
Cash received from issuance of preferred
  stock.......................................       2,000              --            --                --          2,000
Deferred stock compensation related to stock
  option grants...............................          --         (11,697)           --                --             --
Amortization of deferred stock compensation...          --           3,324            --                --          3,324
Exchange of Warrants in connection with joint
  sales agreement.............................          --              --            --                --            475
Performance of services.......................          --              --            --                --            175
Comprehensive loss
  Net loss....................................          --              --            --            (9,470)        (9,470)
  Foreign currency translation adjustment.....          --              --           (77)               --            (77)

Total comprehensive loss......................          --              --            --                --             --
                                                   -------        --------          ----         ---------        -------
Balances as of September 30, 1999
  (unaudited).................................     $  (416)       $(12,090)         $ 51         $(121,245)       $25,568
                                                   =======        ========          ====         =========        =======

<CAPTION>

                                                COMPREHENSIVE
                                                     LOSS
                                                --------------
<S>                                             <C>
Balances as of June 30, 1999..................
Unaudited activity:
Conversion of the bridge financing to
  Series H1 preferred stock and warrants......           --
Issuance of Series H1, less issuance cost of
  $766........................................           --
Exercise of stock options and issuance of
  shares for services.........................           --
Cash received from issuance of preferred
  stock.......................................           --
Deferred stock compensation related to stock
  option grants...............................           --
Amortization of deferred stock compensation...           --
Exchange of Warrants in connection with joint
  sales agreement.............................           --
Performance of services.......................           --
Comprehensive loss
  Net loss....................................       (9,470)
  Foreign currency translation adjustment.....          (77)
                                                   --------
Total comprehensive loss......................     $ (9,547)
                                                   ========
Balances as of September 30, 1999
  (unaudited).................................

</TABLE>

          See accompanying notes to consolidated financial statements.

                                      F-6
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

                     CONSOLIDATED STATEMENTS OF CASH FLOWS

                                 (IN THOUSANDS)

<TABLE>
<CAPTION>
                                                                                       THREE MONTHS ENDED
                                                       FISCAL YEARS ENDED JUNE 30,        SEPTEMBER 30,
                                                      ------------------------------   -------------------
                                                        1997       1998       1999       1998       1999
                                                      --------   --------   --------   --------   --------
                                                                                           (UNAUDITED)
<S>                                                   <C>        <C>        <C>        <C>        <C>
Cash flows from operating activities:
  Net loss..........................................  $(29,182)  $(30,822)  $(24,468)  $ (5,091)  $ (9,470)
  Adjustments to reconcile net loss to net cash used
    in operating activities:
    Depreciation and amortization...................     2,505      3,373      3,497      1,017        924
    Amortization of deferred stock compensation.....     6,377      7,604      5,254      1,523      3,324
    Loss on disposition of property.................         3         79         --         --
    Amortization of discount on debt................        --         --      1,952         --      1,744
    Interest accrued on convertible note payable....        32         --        238         --        170
    Value of consulting services received in
      exchange for shares...........................        44         --      2,679      1,596         --
    Value of engineering services received in
      exchange for shares...........................        --        357      1,072        299        175
    Changes in operating assets and liabilities:
      Trade receivables.............................      (750)    (4,193)    (1,222)      (258)       459
      Inventories...................................    (2,725)      (342)    (2,391)    (1,470)       993
      Prepaid expenses and other current assets.....      (118)      (371)     1,706       (428)       (49)
      Accounts payable..............................      (697)     2,363     (1,769)    (1,019)       781
      Accrued expenses and other current
        liabilities.................................       814        854        937        221      1,383
      Deferred revenue..............................     1,736         88       (776)    (1,570)    (1,666)
                                                      --------   --------   --------   --------   --------
        Net cash used in operating activities.......   (21,961)   (21,010)   (13,291)    (5,180)    (1,232)
                                                      --------   --------   --------   --------   --------
Cash flows from investing activities:
  Sale of short-term investments....................    (4,902)     4,827         75         75
  Purchases of property and equipment...............    (4,552)    (2,540)    (1,728)      (304)      (934)
  Investment in licensed technologies...............       (36)      (937)      (314)      (128)       (47)
  Other assets......................................      (509)    (1,045)        --         63         --
                                                      --------   --------   --------   --------   --------
        Net cash (used in) provided by investing
          activities................................    (9,999)       305     (1,967)      (294)      (981)
                                                      --------   --------   --------   --------   --------
Cash flows from financing activities:
  Proceeds from issuances of common shares..........        --        428         --         --         --
  Proceeds from issuances of convertible preferred
    shares and warrants.............................    20,049     18,245         --         --     11,244
  Proceeds from issuance of convertible notes and
    warrants........................................        --         --     12,164         --         --
  Principal payments on notes payable...............      (109)    (6,073)      (546)      (142)      (135)
  Proceeds from exercise of options.................        85        161        153          8        115
  Other long-term liabilities.......................     1,029        388         --      1,495        135
                                                      --------   --------   --------   --------   --------
        Net cash provided by financing activities...    21,054     13,149     11,771      1,361     11,359
  Effect of exchange rate changes on cash and short
    term investments................................        --         34         66        (67)       (77)
                                                      --------   --------   --------   --------   --------
Net increase (decrease) in cash and cash
  equivalents.......................................   (10,906)    (7,522)    (3,421)    (4,180)     9,069
Cash and cash equivalents at beginning of year......    25,768     14,862      7,340      7,340      3,919
                                                      --------   --------   --------   --------   --------
Cash and cash equivalents at end of year............  $ 14,862   $  7,340   $  3,919   $  3,160   $ 12,988
                                                      ========   ========   ========   ========   ========
</TABLE>

                                      F-7
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

               CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)

                                 (IN THOUSANDS)

<TABLE>
<CAPTION>
                                                                                       THREE MONTHS ENDED
                                                       FISCAL YEARS ENDED JUNE 30,        SEPTEMBER 30,
                                                      ------------------------------   -------------------
                                                        1997       1998       1999       1998       1999
                                                      --------   --------   --------   --------   --------
                                                                                           (UNAUDITED)
<S>                                                   <C>        <C>        <C>        <C>        <C>
Supplemental disclosures of cash flow information:
  Cash paid during year for interest................  $    438   $    788   $    213   $     49   $     35
                                                      ========   ========   ========   ========   ========
  Noncash investing and financing activities:
    Licensed technology obtained in exchange for
      preferred stock...............................  $     --   $  1,000   $     --   $     --   $     --
    Provision of engineering services in exchange
      for preferred stock...........................  $     --   $  3,500   $     --   $     --   $     --
    Conversion of convertible notes to preferred
      stock.........................................  $     --   $     --   $     --   $     --   $  8,754
    Exchange of warrants in connection with joint
      sales agreement...............................  $     --   $     --   $     --   $     --   $  4,121
    Dividend effect of beneficial conversion feature
      to H1 shareholders............................  $     --   $     --   $     --   $     --   $  2,055
</TABLE>

          See accompanying notes to consolidated financial statements.

                                      F-8
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(1) THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

    (A) DESCRIPTION OF BUSINESS

    interWAVE Communications International, Ltd. (the Company) develops,
manufactures and markets compact mobile wireless network solutions for GSM
wireless communications on a global basis. The Company's products are primarily
marketed to communication equipment providers, wireless service providers and
systems integrators.

    The Company has a fiscal year that ends on the Friday nearest June 30.
Fiscal 1997 and 1998 were 52 week years. Fiscal 1999 was a 53 week year. For
presentation purposes the accompanying consolidated financial statements and
notes refer to the calendar month-end.

    Effective November 1, 1997, the Company sold the assets and liabilities of
its offices in the United Kingdom and China to ADC Telecommunications, Inc. for
$1,016,806 which was substantially equal to the net book value on the date of
sale. All employees of the offices were transitioned to ADC to assist them with
the marketing, sale and service of interWAVE products through their channels. As
part of the sale, the Company modified its purchase/resale agreement with ADC
Telecommunications.

    (B) BASIS OF ACCOUNTING AND CONSOLIDATION

    The consolidated financial statements of the Company are presented in
conformity with generally accepted accounting principles as adopted in the
United States. The consolidated financial information as of September 30, 1999
and for the three-months ended September 30, 1998 and 1999 is unaudited, but
includes all adjustments (consisting only of normal recurring adjustments) that
the Company considers necessary for the fair presentation of the financial
position at such dates and the operations and cash flows for the periods then
ended. Operating results for the three-months ended September 30, 1999 are not
necessarily indicative of results that may be expected for the entire year.

    The consolidated financial statements include the accounts of the Company
and its wholly owned subsidiaries: interWAVE Communications, Inc. (Delaware,
USA); interWAVE Communications B.V. (Netherlands); interWAVE Communications
Solutions Ltd. (United Kingdom); and interWAVE Communications, S.A. (France).
The Company also operates a branch office in Hong Kong. All intercompany
balances and transactions have been eliminated in consolidation.

    (C) INITIAL PUBLIC OFFERING AND UNAUDITED PRO FORMA BALANCE SHEET

    In September 1999, the Board of Directors of the Company authorized the
filing of a registration statement with the Securities and Exchange Commission
(SEC) that would permit the Company to sell shares of the Company's common stock
in connection with a proposed initial public offering (IPO). If the offering is
consummated under the terms presently anticipated, all the then outstanding
shares of the Company's Series A-1, Series B-1, Series C-1, Series D,
Series D-1, Series E, Series E-1, Series F-1, Series G-1, Series H and
Series H-1 convertible preferred stock will automatically convert into shares of
common stock on a one-for-one basis upon the closing of the proposed IPO. In
addition, outstanding warrants to purchase 2,000,000 preferred shares and
1,132,874 common shares, will expire upon the closing of the offering, if not
exercised earlier. The Company has received a firm committment from the
preferred warrant holder that they intend to exercise their warrants.
Additionally, the Company has received firm commitments from certain common
warrant holders that they will exercise their warrants to purchase 188,410
common shares prior to the effectiveness of this

                                      F-9
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(1) THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

offering. The conversion of all convertible preferred shares, the exercise of
warrants for preferred shares and the exercise of warrants for common shares for
which they have obtained a firm commitment that the warrants will be exercised
have been reflected in the accompanying unaudited pro forma balance sheet as if
it had occurred on September 30, 1999. However, the Company has not reflected
the exercise of the common stock warrants for which the warrant holders have not
yet made a firm commitment. The unaudited pro forma balance sheet also reflects
the issuance of 602,256 common shares upon exercise of options subsequent to
September 30, 1999. Series G1 preferred shares shall not automatically convert
into common shares unless the $25,000,000 aggregate offering price is met and
the price is $7.00 per share or greater.

<TABLE>
<CAPTION>
                                                   SEPTEMBER 30, 1999                 SEPTEMBER 30, 1999
                                                   ------------------    PRO FORMA    ------------------
                                                      AS REPORTED       ADJUSTMENT        PRO FORMA
                                                      (UNAUDITED)       (UNAUDITED)      (UNAUDITED)
<S>                                                <C>                  <C>           <C>
Shareholders' equity:

Convertible preferred shares.....................       $  19,488        $(19,488)         $     --

Common shares....................................               6              30                36

Additional paid-in capital.......................         145,316          62,797           208,113

Deferred stock compensation......................         (12,090)             --           (12,090)

Services receivable from shareholder.............          (5,542)             --            (5,542)

Subscriptions and amounts receivable from
  shareholders...................................            (416)             --              (416)

Accumulated other comprehensive..................              51              --                51

Accumulated deficit..............................        (121,245)             --          (121,245)
                                                        ---------        --------          --------

Total shareholders' equity.......................       $  25,568        $ 43,339          $ 68,907
                                                        =========        ========          ========
</TABLE>

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

(1) Assumes the conversion of all preferred shares outstanding as of
    September 30, 1999.

(2) Assumes the conversion of the shares of Convertible preferred shares as of
    September 30, 1999, into common shares; and the exercise of warrants for
    2,000,000 preferred shares at $7 per share, which warrants will otherwise
    expire on the effectiveness of the IPO.

(3) Assumes the issuance of 3,526,663 shares of Series I-1 preferred shares sold
    in November and December 1999.

(4) Includes the exercise of stock options to purchase 602,256 common shares at
    an average exercise price of $0.99 that has occurred since September 30,
    1999.

(5) Includes the exercise of warrants to purchase 188,410 common shares for
    which the Company has received firm commitments that the warrants will be
    exercised prior to the effectiveness of this offering.

                                      F-10
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(1) THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

    (D) CURRENCY TRANSLATION

    For operations outside of the United States with the local currency as the
functional currency, assets and liabilities are translated at year-end exchange
rates, and statements of operations are translated at the average exchange rates
during the year. Adjustments arising from translation of non-U.S. currency
denominated assets and liabilities for these operations are included as a
component of other comprehensive income in shareholders' equity.

    For non-U.S. operations with the U.S. dollar as the functional currency,
non-U.S. currency denominated assets and liabilities are remeasured into U.S.
dollars using historical rates and any measurement gains and losses are included
in the consolidated results of operations and, to date, have not been
significant.

    (E) CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS

    The Company considers all highly liquid investments with an original
maturity of three months or less to be cash equivalents. Investments with an
original maturity of more than three months but less than one year are
classified as short-term investments.

    Cash equivalents and short-term investments are classified as
"available-for-sale" under the provisions of Statement of Financial Accounting
Standards (SFAS) No. 115, ACCOUNTING FOR CERTAIN INVESTMENTS IN DEBT AND EQUITY
SECURITIES.

    The amortized cost of available-for-sale securities are adjusted for
amortization of premiums and accretion of discounts to maturity. Such
amortization is included in net investment income. As required by SFAS No. 115,
available-for-sale securities are recorded at fair value. Unrealized gains and
losses are reported as a separate component of accumulated other comprehensive
income in stockholders' equity. Realized gains and losses and declines in value
judged to be other than temporary on available-for-sale securities are included
in net investment income. The cost of securities sold is based on the specific
identification method. Interest on securities classified as available-for-sale
are included in other income.

    (F) CONCENTRATION OF RISK

    Financial instruments, which potentially subject the Company to a
concentration of credit risk, principally consist of accounts receivable. The
Company performs ongoing credit evaluations of its customers and generally does
not require collateral on accounts receivable, as a majority of the Company's
customers are large, well established companies.

                                      F-11
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(1) THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

    The following table summarizes information relating to the Company's
significant customers with balances greater than 10% of accounts receivable as
of:

<TABLE>
<CAPTION>
                                                      JUNE 30,            SEPTEMBER 30,
                                                 -------------------   -------------------
                                                   1998       1999       1998       1999
                                                 --------   --------   --------   --------
                                                                           (UNAUDITED)
<S>                                              <C>        <C>        <C>        <C>
ACCOUNTS RECEIVABLE
  Nortel Networks..............................    41%        48%        63%        18%
  Hutchison Telecommunications Group...........    24%         8%        10%         0%
  ADC Telecommunications/Microcellular Systems,
    Ltd.(1)....................................    35%         0%        18%        15%
  HangZhou Topper Electric Corporation.........     0%         5%         0%        27%
  Alcatel......................................     0%         9%         8%        10%
</TABLE>

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

        (1) Microcellular Systems, Ltd. was created by a spin-off from ADC
        Telecommunications in May 1999.

    The following table summarizes information relating to the Company's
significant customers with revenues comprising greater than 10% of revenue:

<TABLE>
<CAPTION>
                                                   YEARS ENDED JUNE 30,           SEPTEMBER 30,
                                              ------------------------------   -------------------
                                                1997       1998       1999       1998       1999
                                              --------   --------   --------   --------   --------
                                                                                   (UNAUDITED)
<S>                                           <C>        <C>        <C>        <C>        <C>
REVENUES
  Nortel Networks...........................     0%        18%        51%        53%        18%
  Hutchison Telecommunications Group........    68%        21%         8%         4%         5%
  ADC Telecommunications/Microcellular
    Systems, Ltd.(1)........................    15%        47%        20%        31%        21%
  Total Access Communications...............     0%        13%         3%         0%         9%
  Electronia................................    16%         0%         0%         0%         0%
  HangZhou Topper Electric Corporation......     0%         0%         2%         0%        38%
  Alcatel...................................     0%         0%         7%        11%         2%
</TABLE>

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

        (1) Microcellular Systems, Ltd. was created by a spin-off from ADC
        Telecommunications in May 1999.

    (G) INVENTORIES

    Inventories are stated at the lower of average cost or market.

    (H) PROPERTY AND EQUIPMENT

    Property and equipment are stated at cost, less accumulated depreciation,
calculated using the straight-line depreciation method over the estimated useful
lives of the related assets, generally two to five years. Leasehold improvements
are depreciated over the life of the underlying lease or the estimated useful
life, whichever is shorter.

                                      F-12
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(1) THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

    (I) REVENUE RECOGNITION

    Revenue is recognized when all of the following have occurred: the product
has been shipped, title and risk of loss have passed to the customer (generally
at time of shipment for US shipments and at time of arrival at an international
port for non-US shipments), we have the right to invoice the customer,
collection of the receivable is probable, and we have fulfilled all pre-sale
contractual obligations to the customer. Revenue for installation services is
recognized as the service is performed to the extent of direct installation
costs incurred and the excess is deferred and recognized over the estimated life
of the equipment. Revenue from extended warranty coverage and customer support
is recognized ratably over the period of the service contract. Trial sales made
directly to wireless service providers are not recognized as revenue until the
trial is successfully completed. Trials conducted by communications service
providers and systems integrators are normally shipped from their inventory and
do not result in any incremental revenue to us. Although the Company's products
contain a software component, the software is not sold separately and the
Company is not contractually obligated to provide software upgrades to its
customers.

    The Company provides for estimated warranty costs at the time of sale. Sales
agreements include a 12 to 16 month warranty on all hardware and software.

    (J) RESEARCH AND DEVELOPMENT COSTS

    SFAS No. 86 provides for the capitalization of certain software development
costs once technological feasibility is established subject to an evaluation of
realizability. Capitalized costs are then amortized on a straight-line basis
over the estimated product life or based on the ratio of current revenues to
projected product revenues, whichever is greater. To date, the Company's
products have been available for general release concurrent with the
establishment of technological feasibility; and, accordingly, no development
costs have been capitalized.

    (K) INTANGIBLES

    The Company capitalizes costs of acquiring licenses from third parties for
technologies that have reached technological feasibility and can be incorporated
into the Company's products. The Company also capitalizes certain external costs
associated with patents and trademarks. Except for the license and technical
information agreement discussed in Note 9(a), the Company amortizes these assets
straight line over four years or based on the ratio of current revenues to
projected revenues whichever is greater. Technology licenses generally contain
provisions for royalty payments to licensors based on the number of units sold.

    (L) IMPAIRMENT OF LONG-LIVED ASSETS

    The Company evaluates its long-lived assets, including certain identifiable
intangibles, for impairment whenever events or changes in circumstances indicate
that the carrying amount of such assets might not be recoverable. Recoverability
of assets to be held and used is measured by a comparison of the carrying amount
of an asset to future net cash flows expected to be generated by the asset. If
such assets are considered to be impaired, the impairment to be recognized is
measured by

                                      F-13
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(1) THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

the amount by which the carrying amount of the asset exceeds the fair value of
the asset. Assets to be disposed of are reported at the lower of the carrying
amount or fair value less costs to sell.

    (M) INCOME TAXES

    The Company uses the asset and liability method of accounting for income
taxes. Deferred tax assets and liabilities are recognized for the estimated
future tax consequences attributable to differences between the financial
statement carrying amounts of existing assets and liabilities and their
respective tax bases. Deferred tax assets and liabilities are measured using
enacted tax rates in effect for the year in which those temporary differences
are expected to be recovered or settled. Valuation allowances are established
when necessary to reduce deferred tax assets to the amounts expected to be
realized.

    (N) LOSS PER SHARE

    Basic loss per share is computed using the weighted average number of common
shares outstanding during the period. Diluted loss per share is computed using
the weighted average number of common and dilutive potential common shares
outstanding during the period, using the as-if-converted method for convertible
preferred shares and the treasury stock method for options and warrants. The
effect of including convertible preferred shares, options and warrants would
have been antidilutive during all periods presented. As a result, such effect
has been excluded from the computation of diluted net loss per share during
those antidilutive periods. The total number of shares excluded from diluted net
loss per share relating to these securities was approximately 20,177,168,
1,939,000, and 3,518,201 shares, respectively, for the fiscal year ended 1999.
Pursuant to SEC Staff Accounting Bulletin No. 98, common shares and convertible
preferred shares issued for nominal consideration and options and warrants
granted for nominal consideration prior to the anticipated effective date of the
initial public offering are included in the calculation of basic and diluted net
loss per share, as if they were outstanding for all periods presented. To date,
the Company has not had any issuances of stock, options or warrants for nominal
consideration.

    (O) STOCK-BASED COMPENSATION AND WARRANTS FOR GOODS AND SERVICES

    The Company accounts for stock-based awards to employees using the intrinsic
value method. Expense associated with stock-based compensation is being
amortized on an accelerated basis over the vesting period of the individual
award consistent with the method described in Financial Accounting Standards
Board ("FASB") Interpretation No. 28.

    Warrants issued for goods or services are valued at the fair value of the
equity instrument or the goods or services received, whichever is more readily
determinable. Promises of future services are recorded as contra-equity until
such time as the services are received.

    (P) USE OF ESTIMATES

    The preparation of consolidated financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the

                                      F-14
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(1) THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

consolidated financial statements and the reported amounts of revenues and
expenses during the reporting period. Actual results could differ from those
estimates.

    (Q) COMPREHENSIVE INCOME

    "Other comprehensive income" refers to revenues, expenses, gains and losses
that are not included in net income, but rather are recorded directly in
stockholders' equity. The only component of other comprehensive income for the
years ended June 30, 1997, 1998 and 1999 was cumulative translation adjustments.

    (R) FAIR VALUE OF FINANCIAL INSTRUMENTS

    The carrying value of cash, cash equivalents, accounts receivable, accounts
payable and accrued expenses, other current liabilities and convertible notes
approximate fair value due to the short maturity of those instruments. The
carrying value of the notes payable approximate fair value due to the variable
interest rates on these notes.

(2) CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS

    Cash equivalents and short-term investments have been classified as
available-for-sale securities and consisted of the following (in thousands):

<TABLE>
<CAPTION>
                                                               JUNE 30,         SEPTEMBER 30,
Cash Equivalents                                          -------------------   -------------
                                                            1998       1999         1999
                                                          --------   --------   -------------
                                                                                 (UNAUDITED)
<S>                                                       <C>        <C>        <C>
    Cash................................................   $1,637     $  708       $ 2,312
    Money market funds..................................    2,703      2,216         5,224
    Commercial paper....................................    3,000        995         5,452
                                                           ------     ------       -------
                                                           $7,340     $3,919       $12,988
                                                           ======     ======       =======
</TABLE>

    Short term investments consisted of repurchase agreements as of June 30,
1998. For all investments in commercial paper and repurchase agreements, cost
approximates fair market value.

(3) INVENTORIES

    Inventories consist of (in thousands):

<TABLE>
<CAPTION>
                                                       JUNE 30,         SEPTEMBER 30,
                                                  -------------------   -------------
                                                    1998       1999         1999
                                                  --------   --------   -------------
                                                                         (UNAUDITED)
<S>                                               <C>        <C>        <C>
Work in Process.................................   $2,637     $5,290       $3,615
Finished goods..................................      204        373          400
Consignment inventory...........................    1,108        676        1,331
                                                   ------     ------       ------
                                                   $3,949     $6,339       $5,346
                                                   ======     ======       ======
</TABLE>

                                      F-15
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(4) PROPERTY AND EQUIPMENT

    A summary of property and equipment is as follows (in thousands):

<TABLE>
<CAPTION>
                                                    JUNE 30,         SEPTEMBER 30,
                                               -------------------   -------------
                                                 1998       1999         1999
                                               --------   --------   -------------
                                                                      (UNAUDITED)
<S>                                            <C>        <C>        <C>
Machinery and equipment......................  $ 9,119    $ 10,554      $11,363
Computer equipment...........................    3,093       3,323        3,407
Furniture and fixtures.......................      254         260          277
Leasehold improvements.......................      140         197          221
                                               -------    --------      -------
                                                12,606      14,334       15,268
Less accumulated depreciation and
  amortization...............................   (5,984)     (9,000)      (9,744)
                                               -------    --------      -------
                                               $ 6,622    $  5,334      $ 5,524
                                               =======    ========      =======
</TABLE>

(5) INTANGIBLES

    A summary of intangibles is as follows (in thousands):

<TABLE>
<CAPTION>
                                                       JUNE 30,         SEPTEMBER 30,
                                                  -------------------   -------------
                                                    1998       1999         1999
                                                  --------   --------   -------------
                                                                         (UNAUDITED)
<S>                                               <C>        <C>        <C>
Licensed technology.............................   $1,268     $1,243       $ 1,243
Patents & trademarks............................    2,073      2,387         2,483
                                                   ------     ------       -------
                                                    3,341      3,630         3,726
Less accumulated amortization...................     (318)      (775)       (1,004)
                                                   ------     ------       -------
                                                   $3,023     $2,855       $ 2,722
                                                   ======     ======       =======
</TABLE>

(6) INCOME TAXES

    Income tax expense (benefit) for the fiscal years ended June 30, 1997, 1998
and 1999 consisted of the following (in thousands):

<TABLE>
<CAPTION>
                                                       CURRENT    DEFERRED    TOTAL
                                                       --------   --------   --------
<S>                                                    <C>        <C>        <C>
1997:
  U.S. Federal.......................................    $ 37       $ --       $ 37
  Other..............................................      63         11         74
                                                         ----       ----       ----
    Total............................................    $100       $ 11       $111
                                                         ====       ====       ====
1998:
  U.S. Federal.......................................    $ --       $ --       $ --
  Other..............................................     186         34        220
                                                         ----       ----       ----
    Total............................................    $186       $ 34       $220
                                                         ====       ====       ====
1999:
  U.S. Federal.......................................    $ --       $ --       $ --
  Other..............................................     114         (1)       113
                                                         ----       ----       ----
    Total............................................    $114       $ (1)      $113
                                                         ====       ====       ====
</TABLE>

                                      F-16
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(6) INCOME TAXES (CONTINUED)

    The reconciliation between the amount computed by applying the U.S. Federal
statutory tax rate of 34% to income taxes and the actual provision for income
taxes follows (in thousands):

<TABLE>
<CAPTION>
                                                              JUNE 30,
                                                   ------------------------------
                                                     1997       1998       1999
                                                   --------   --------   --------
<S>                                                <C>        <C>        <C>
Income tax expense at statutory rate.............  $(9,884)   $(10,405)  $(8,281)
Non-U.S. income taxed at rate other than the U.S.
  federal rate...................................      (15)       (108)     (218)
Losses, in a zero tax jurisdiction...............    8,538       6,771     4,035
Net losses and temporary differences for which no
  current benefit is recognized..................    1,456       3,782     4,306
Other............................................       16         180       271
                                                   -------    --------   -------
                                                   $   111    $    220   $   113
                                                   =======    ========   =======
</TABLE>

    The tax effects of temporary differences that give rise to significant
portions of deferred tax assets and liabilities are as follows (in thousands):

<TABLE>
<CAPTION>
                                                                FISCAL YEARS ENDED
                                                                     JUNE 30,
                                                          ------------------------------
                                                            1997       1998       1999
                                                          --------   --------   --------
<S>                                                       <C>        <C>        <C>
Deferred tax assets:
  Technology asset......................................  $ 1,082    $    916   $    781
  Inventory.............................................      792       1,611        809
  Allowance for doubtful accounts.......................       --          --        305
  Accruals and reserves.................................      185         428        526
  Net operating loss carryforwards......................    1,128       5,168      9,559
  Research and other tax credit carryforwards...........    1,658       2,509      3,481
                                                          -------    --------   --------
    Total gross deferred tax assets.....................    4,845      10,632     15,461
  Less valuation allowance..............................   (4,513)    (10,550)   (15,438)
                                                          -------    --------   --------
    Total deferred tax assets...........................      332          82         23
Deferred tax liabilities - Fixed assets.................     (343)       (125)       (65)
                                                          -------    --------   --------
      Net deferred tax liabilities......................  $   (11)   $    (43)  $    (42)
                                                          =======    ========   ========
</TABLE>

    The net change in the total valuation allowance from the year ended
June 30, 1998, and 1999 was an increase of approximately $6,037,000 and
$4,888,000, respectively. Management believes that sufficient uncertainty exists
regarding the future realization on deferred tax assets, and, accordingly, a
valuation allowance is required.

                                      F-17
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(6) INCOME TAXES (CONTINUED)

    The company has net operating loss carryforwards for federal and California
income tax return purposes of approximately $23,796,000 and $12,738,000,
respectively. The net operating losses expire in the following years in the
following amounts:

<TABLE>
<CAPTION>
                                                             U.S. FEDERAL   CALIFORNIA
                                                             ------------   -----------
<S>                                                          <C>            <C>
Expires in year:
  2001                                                       $        --    $    24,000
  2002                                                                --        599,000
  2003                                                                --      5,716,000
  2004                                                                --      6,399,000
  2010                                                            13,000             --
  2011                                                            41,000             --
  2012                                                           611,000             --
  2013                                                        10,905,000             --
  2019                                                        12,226,000             --
                                                             -----------    -----------
                                                             $23,796,000    $12,738,000
                                                             ===========    ===========
</TABLE>

    The company also has foreign net operating losses in France of $323,000;
which expires in 2002.

    The Company also has research credit carryforwards for U.S. federal and
California income tax return purposes of approximately $1,856,000 and
$1,110,000, respectively. The federal research credit carryforwards will expire
beginning in 2010 through 2019; California research credits carry forward
indefinitely until utilized. The Company also has U.S. federal minimum tax
credits of approximately $36,000, which carryforwards indefinitely until
utilized. The Company also has California manufacturer's investment credit
carryforwards of approximately $479,000, which expire in 2006 through 2009.

(7) EQUIPMENT LINE OF CREDIT

    During 1997, the Company obtained a secured equipment line of credit of
$2,500,000. Borrowings bear interest at 6% above the average term Treasury Note
two weeks preceding a drawdown. The Company had $1,589,000 outstanding under the
secured equipment line of credit as of June 30, 1998, of which approximately
$1,074,000 is included in long-term liabilities and $515,374 is included in
current portion of notes payable. As of June 30, 1999, the Company had
$1,073,000 outstanding under the secured equipment line of credit, of which
approximately $486,000 is included in long-term liabilities and $587,000 is
included in current portion of notes payable. The Company does not have the
ability to borrow additional amounts under this facility. Borrowings under the
line of credit are payable monthly with the final payments due in July 2001.

(8) CONVERTIBLE NOTES

    In 1999, as part of a bridge financing the Company issued $12,691,830 of
convertible notes payable to a group of its preferred and common shareholders in
exchange for $12,163,965 in cash and a note receivable of $527,865. The
principal amount, together with interest accrued at 8% per annum, will become
due and payable on December 3, 1999 or automatically convert into a new series
of preferred

                                      F-18
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(8) CONVERTIBLE NOTES (CONTINUED)

stock upon the closing of a minimum of $10 million of a new series of preferred
stock to new investors. As a result of the issuance of Series H-1 preferred
shares on September 9, 1999, the notes converted to Series H-1 preferred stock
at a price of $7 per share. As an incentive to participate in the convertible
note financing, current holders of Series A, B, C, D, E, F and G preferred stock
("original preferred stock") who participated at a minimum level based on their
respective ownership percentage were entitled to exchange their original
preferred stock for A-1, B-1, C-1, D-1, E-1, F-1 and G-1 preferred stock,
respectively ("new preferred stock"), whose terms were identical to the original
preferred stock, except that the new preferred stock would be preferential in
liquidation to all original preferred stock. As of June 30, 1999, the
convertible notes, including accrued interest of $231,211, amount to
$12,923,041.

    In conjunction with the bridge loan financing, the participants in the
convertible notes were granted a warrant to purchase one share of common stock
for each $2 invested in the convertible notes. As a result, the Company issued
warrants to purchase 6,345,939 shares of common stock at a price of $0.70 per
share, which are exercisable any time for a period of 5 years from date of
issuance. The proceeds from the bridge financing were allocated between the
convertible notes and the warrants based upon their relative fair values. The
amount of $5,592,552 (net of proportionate value of note receivable of $284,466)
ascribed to the warrants was estimated using the Black-Scholes option valuation
model with the following assumptions: no expected dividend yield; risk free
interest rate of 6%; expected volatility 70%; and contractual term of 5 years.
The value of the warrants had been recorded as a discount on the convertible
notes payable and additional paid-in-capital and will be amortized over the term
of the debt.

    The note receivable of $527,865 has been recorded as a reduction of the
convertible notes of $243,399 and a reduction of the warrants of $284,466
determined on a basis proportionate to the fair value of the bridge loan and
warrants.

    As of June 30, 1999 no warrants have been exercised. Interest expense of
$1,951,567 has been recorded in connection with the amortization of the discount
in fiscal 1999.

    A summary of the convertible notes is as follows (in thousands):

<TABLE>
<S>                                                           <C>
Convertible notes, plus accrued interest....................  $12,923

Less unamortized discount on term loan in connection with
  the issuance of warrants..................................   (3,926)

Less: proportionate value of note receivable................     (243)
                                                              -------

Convertible notes...........................................  $ 8,754
                                                              =======
</TABLE>

                                      F-19
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(9) PREFERRED AND COMMON SHARES

    (A) CONVERTIBLE PREFERRED SHARES

    A summary of outstanding convertible preferred stock is as follows (in
thousands, except share data):

<TABLE>
<CAPTION>
                                                   JUNE 30                                SEPTEMBER 30
                            -----------------------------------------------------   -------------------------
                                      1998                        1999                  1999 (UNAUDITED)
                            -------------------------   -------------------------   -------------------------
                              SHARES      LIQUIDATION     SHARES      LIQUIDATION     SHARES      LIQUIDATION
SERIES                      OUTSTANDING   PREFERENCE    OUTSTANDING   PREFERENCE    OUTSTANDING   PREFERENCE
- ------                      -----------   -----------   -----------   -----------   -----------   -----------
<S>                         <C>           <C>           <C>           <C>           <C>           <C>
A.........................   3,400,000      $ 2,822             --      $    --             --      $     --
A-1.......................          --           --      3,400,000        2,822      3,400,000         2,822
B.........................   2,670,000        3,204             --           --             --            --
B-1.......................          --           --      2,670,000        3,204      2,670,000         3,204
C.........................   1,000,000        1,500             --           --             --            --
C-1.......................          --           --      1,000,000        1,500      1,000,000         1,500
D.........................   4,680,000       14,040         41,000          123         41,000           123
D-1.......................          --           --      4,639,000       13,917      4,639,000        13,917
E.........................   2,567,167       25,672        109,200        1,072        109,200         1,072
E-1.......................          --           --      2,457,967       24,600      2,457,967        24,600
F.........................   1,500,000       17,250             --           --             --            --
F-1.......................          --           --      1,500,000       17,250      1,500,000        17,250
G.........................   3,714,286       26,000             --           --             --            --
G-1.......................          --           --      3,714,286       26,000      3,714,286        26,000
H.........................          --           --        360,000        2,520        360,000         2,520
H-1.......................          --           --        285,715        2,000      3,588,077        25,116
                            ----------      -------     ----------      -------     ----------      --------
                            19,531,453      $90,488     20,177,168      $95,008     23,479,530      $118,124
                            ==========      =======     ==========      =======     ==========      ========
</TABLE>

    The liquidation preferences of the holders of authorized preferred shares
are as follows:
<TABLE>
<CAPTION>
                                                                              SERIES
                                 ------------------------------------------------------------------------------------------------
                                    A1         B1         C1         D          D1         E          E1         F1         G1
                                 --------   --------   --------   --------   --------   --------   --------   --------   --------
<S>                              <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
Liquidation preference
  per share(a).................   $0.83      $1.20      $1.50      $3.00      $3.00      $10.00     $10.00     $11.50     $7.00

<CAPTION>
                                       SERIES
                                 -------------------
                                    H          H1
                                 --------   --------
<S>                              <C>        <C>
Liquidation preference
  per share(a).................   $7.00      $7.00
</TABLE>

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

       (a) Plus accrued and unpaid dividends. If the assets and funds
           distributed among the holders of preferred stock are insufficient to
           permit payment of these amounts, then such assets and funds shall be
           distributed to the holders of preferred shares in proportion to the
           respective preferential amounts fixed for each series. Any remaining
           assets shall be distributed among the holders of common shares on a
           pro rata basis. A consolidation or merger of the Company involving
           transfer of more than 50% of the voting power shall be deemed a
           liquidation except in specific circumstances.

    Each holder of preferred shares is entitled to receive, when and if declared
by the Board of Directors, noncumulative dividends at a rate of $0.05 per share.
As of June 30, 1999, no dividends have been declared.

                                      F-20
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(9) PREFERRED AND COMMON SHARES (CONTINUED)

    Each holder of preferred shares is entitled to one vote per share.

    Each preferred share is convertible into common shares, at the option of the
holder, at any time, on a one-for-one basis subject to adjustment for
antidilution events as defined, and will automatically convert into common
shares in the event of the consummation of an underwritten initial public
offering of not less than $25,000,000. Series G1 preferred shares shall not
automatically convert into common shares unless the $25,000,000 aggregate
offering price is met and the price is $7.00 per share or greater.

    On March 27, 1998 and April 29, 1998, the Company issued an aggregate of
3,714,286 shares of Series G preferred stock and a warrant to purchase 2,000,000
Series G preferred shares at $7.00 per share to Nortel Networks for an aggregate
purchase price of $22,744,000 (net of financing costs of $1,756,000), which
consideration consisted of a $20,000,000 cash payment and licensed technology
valued at $1,000,000, and a technical information agreement valued at
$3,500,000. The amount of $4,629,000 ascribed to the warrants was estimated
using the Black-Scholes option valuation model with the following assumptions:
no expected dividend yield; risk free interest rate of 5.5%; expected volatility
of 70%; and contractual term of 3 years. The warrants expire on March 27, 2001
or upon the effectiveness of an initial public offering, whichever is first,
unless previously exercised.

    The licensed technology is being amortized over a five year term. If the
license is terminated in less than five years, the Company will receive a
prorata refund equal to 20% of the amount paid for the license for each
remaining year. The refund may be paid in cash or Series G preferred shares, at
the option of the payor, at their original value. The license technology
agreement is for one year and automatically renews for the duration of the
underlying patents. The technical information agreement provides for the Company
to have access to Nortel Network's technical assistance and testing services and
other documentation and support. The agreement further provides for a refund as
a percentage of the original value as per the following schedule:

<TABLE>
<S>                                                           <C>
March 16, 1999..............................................    65%
March 16, 2000..............................................    45%
March 16, 2001..............................................    30%
March 16, 2002..............................................    15%
March 16, 2003..............................................     0%
</TABLE>

    The Company has recorded this agreement as a contra equity and is amortizing
the value on a basis consistent with their ability to receive a refund.

    On September 10, 1999, the Company completed an offering of 1,715,715 shares
of Series H-1 preferred shares and issued warrants to purchase an aggregate of
240,000 shares of common stock at $1 per share to a group of investors in
exchange for $12,010,000 (before financing costs of $766,000). The Series H-1
contains a $7 per share liquidation preference and converts to common shares on
a one-to-one basis. The warrants valued at $1,340,000 expire three years from
the issuance date, or upon the effectiveness of an initial public offering,
whichever comes first, unless previously exercised. The fair value of the H-1
preferred and common shares at time of issuance of Series H-1 was deemed to be
$7.50 per share, resulting in recognition of a dividend at the time of issuance
(a beneficial conversion) of $2,055,000. The sale of Series H-1 preferred shares
met the minimum $10 million new financing described in footnote 8, and resulted
in the automatic conversion of the convertible notes and interest

                                      F-21
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(9) PREFERRED AND COMMON SHARES (CONTINUED)

accrued thereon into 1,872,362 shares of Series H-1 and the issuance of warrants
to purchase 253,874 shares of common stock for $1 per share to the noteholders.
The warrants expire three years from the issuance date, or upon the
effectiveness of an initial public offering, whichever comes first, unless
previously exercised.

    In September 1999, the Company entered into a memorandum of understanding
expiring in August 2000 with an investor to distribute and manufacture the
investor's products and for the investor to market the company's products in
Canada. The Company expects to enter into a four-year distribution agreement. In
conjunction with the memorandum of understanding the Company issued a warrant to
purchase 615,000 common shares at an exercise price of $1 per share and received
a warrant to purchase 225,225 shares of the investor's publicly traded common
shares at $3.3125 per share expiring in August 2002. The warrant to purchase the
Company's common shares expires on the earlier of September 1, 2002, or the
effectiveness of an initial public offering. The warrant is fully vested,
nonforfeitable and exercisable on the date that the Company and the investor
executed the warrant agreement.

    The amount of $475,650 ascribed to the warrants received by the Company was
estimated using the Black-Scholes option valuation model with the following
assumptions: no expected dividend yield; risk free interest rate of 6%; expected
volatility of 81%; and contractual term of 3 years. The warrant received was
recorded in other assets as of September 30, 1999.

    The amount of $4,120,500 ascribed to the warrants issued to the investor was
estimated using the Black-Scholes option valuation model with the following
assumptions: no expected dividend yield; risk free interest rate of 6%; expected
volatility of 70%; and contractual term of 3 years. The warrant has been
recorded as other paid in capital. The amount of $3,645,500 ascribed to the
services to be received from the investor was determined as the difference in
value between the warrants exchanged. This amount has been recorded as contra
equity and will be amortized to expense over the four year term of the
distribution agreement.

    (B) SHARE OPTION PLAN

    In fiscal 1995, the Board of Directors adopted the 1994 Share Plan (the
Plan) providing for the issuance of common share options to employees and
consultants of the Company. The share options are a combination of both
incentive and non-statutory share options.

    Incentive share options may be granted at not less than 100% of the fair
market value per share, and non-statutory share options may be granted at not
less than 85% of the fair market value per share at the date of grant as
determined by the Board of Directors or committee thereof, except for options
granted to a person owning greater than 10% of the total combined voting power
of all classes of shares of the Company, for which the exercise price must not
be less than 110% of the fair market value. Share option plan shares generally
vest 25% after one year, with the remainder vesting monthly over the following
three years. Additional options granted to existing employees after July 28,
1998 are in general vesting monthly over four years.

    The Company uses the intrinsic value method to account for the 1994 plans.
Accordingly compensation cost has been recognized for its stock options in the
accompanying financial statements if, on the date of grant, the current market
value of the underlying common stock exceeded the exercise price of the stock
options at the date of grant.

                                      F-22
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(9) PREFERRED AND COMMON SHARES (CONTINUED)

    During fiscal 1997, 1998 and 1999, the Company granted options with a
weighted-average exercise price of $1.07, $1.15 and $0.90 respectively, compared
to the weighted-average fair value of approximately $8.80, $6.37 and $3.03 for
the same respective periods.

    Options generally have 10 year terms. However, options granted to an
optionee who, at the time the option is granted, owns stock representing more
than 10% of the voting power of all classes of stock of the Company, generally
have 5 year terms.

    The Company has reserved 10,730,000 common shares for issuance under the
Plan. A summary of the Company's share option plan activity is as follows:

<TABLE>
<CAPTION>
                                                        JUNE 30,                                      SEPTEMBER 30,
                         ----------------------------------------------------------------------        (UNAUDITED)
                                 1997                    1998                     1999                    1999
                         ---------------------   ---------------------   ----------------------   ---------------------
                                     WEIGHTED-               WEIGHTED-                WEIGHTED-               WEIGHTED-
                                      AVERAGE                 AVERAGE                  AVERAGE                 AVERAGE
                                     EXERCISE                EXERCISE                 EXERCISE                EXERCISE
                          SHARES       PRICE      SHARES       PRICE       SHARES       PRICE      SHARES       PRICE
                         ---------   ---------   ---------   ---------   ----------   ---------   ---------   ---------
<S>                      <C>         <C>         <C>         <C>         <C>          <C>         <C>         <C>
Outstanding at
  beginning of
  year.................  2,857,524     $0.27     3,007,986     $0.52      3,265,867     $0.74     4,304,811     $0.77
Granted................  1,177,200      1.07     1,044,500      1.15      2,417,100      0.90     1,973,750      1.45
Exercised..............   (334,963)     0.25      (447,807)     0.23       (278,174)     0.55      (993,098)     0.37
Canceled...............   (691,775)     0.51      (338,812)     0.72     (1,099,982)     1.09      (154,954)     1.01
                         ---------     -----     ---------     -----     ----------     -----     ---------     -----
Outstanding at
  year-end.............  3,007,986      0.52     3,265,867      0.74      4,304,811      0.77     5,130,509      1.10
                         =========     =====     =========     =====     ==========     =====     =========     =====
Options exercisable at
  year-end.............  1,109,432     $0.30     1,362,648     $0.46      2,026,902     $0.61     1,325,013     $0.85
                         =========     =====     =========     =====     ==========     =====     =========     =====
</TABLE>

    The following table summarizes information about share options outstanding
and exercisable under the Plan as of June 30, 1999:

<TABLE>
<CAPTION>
                         WEIGHTED-AVERAGE
RANGE OF                    REMAINING
EXERCISE     NUMBER      CONTRACTUAL LIFE   WEIGHTED-AVERAGE     NUMBER      WEIGHTED-AVERAGE
 PRICES    OUTSTANDING       (YEARS)         EXERCISE PRICE    EXERCISABLE    EXERCISE PRICE
- --------   -----------   ----------------   ----------------   -----------   ----------------
<S>        <C>           <C>                <C>                <C>           <C>
 $0.08        160,188          5.13              $0.08            160,188         $0.08
  0.12        158,522          5.64               0.12            158,053          0.12
  0.30        816,139          6.21               0.30            774,743          0.30
  0.70      1,258,163          9.74               0.70            159,442          0.70
  1.00        342,003          7.26               1.00            225,462          1.00
  1.15      1,569,795          8.75               1.15            549,014          1.15
            ---------          ----              -----          ---------         -----
            4,304,810          8.19              $0.77          2,026,902         $0.61
            =========          ====              =====          =========         =====
</TABLE>

    Under SFAS No. 123, Accounting for Stock-Based Compensation, the Company is
required to disclose the pro forma effects on net loss and net loss per share as
if the Company had elected to use the fair value approach to account for all of
its employee stock-based compensation plans. Had compensation cost for the
Company's plans been determined consistently with the fair value approach
described in SFAS No. 123, the Company's pro forma net loss and pro forma net
loss per share for the

                                      F-23
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(9) PREFERRED AND COMMON SHARES (CONTINUED)

years ended June 30, 1997, 1998 and 1999, would have been changed as indicated
below (in thousands, except per share amounts):

<TABLE>
<CAPTION>
                                                            JUNE 30,
                                                 ------------------------------
                                                   1997       1998       1999
                                                 --------   --------   --------
<S>                                              <C>        <C>        <C>
Net loss:
  As reported..................................  $(29,182)  $(30,822)  $(24,468)
  Pro forma....................................  $(33,132)  $(35,485)  $(26,417)
Net loss per share
  As reported..................................  $  (7.12)  $  (6.68)  $  (4.96)
  Pro forma....................................  $  (8.08)  $  (7.69)  $  (5.35)
</TABLE>

    The fair value of options granted was estimated on the date of grant using
the Black-Scholes option-pricing model with the following weighted average
assumptions used for grants in 1997, 1998 and 1999:

<TABLE>
<CAPTION>
                                                         1997           1998           1999
                                                       --------       --------       --------
<S>                                                    <C>            <C>            <C>
Weighted average risk-free rate......................    5.56%          5.56%          5.29%
Expected life (years)................................       5              5              5
Volatility...........................................      70%            70%            70%
Dividend yield.......................................       0              0              0
</TABLE>

(10) TRANSACTIONS WITH RELATED PARTIES AND MAJOR CUSTOMERS

    For the years ended June 30, 1997, 1998, and 1999, the Company engaged in
business transactions with investors and major customers resulting in the
following revenue, deferred revenue, and trade receivables: (in thousands):

<TABLE>
<CAPTION>
                                                      1997       1998       1999
                                                    --------   --------   --------
<S>                                                 <C>        <C>        <C>
Revenue:
  Nortel Networks.................................   $   --    $ 2,392    $ 8,797
  Hutchison Telecommunications Group..............    1,251      2,754      1,409
  ADC Telecommunications..........................      279      6,099      3,449
  Total Access Communications.....................        8      1,750        505
                                                     ------    -------    -------
                                                     $1,538    $12,995    $14,160
                                                     ======    =======    =======
</TABLE>

<TABLE>
<CAPTION>
                                                                1998       1999
                                                              --------   --------
<S>                                                           <C>        <C>
Deferred Revenue:
  Nortel Networks...........................................   $1,531     $1,508
  Hutchison Telecommunications Group........................      374        144
  Total Access Communications...............................      693         56
                                                               ------     ------
                                                               $2,598     $1,708
                                                               ======     ======
</TABLE>

                                      F-24
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(10) TRANSACTIONS WITH RELATED PARTIES AND MAJOR CUSTOMERS (CONTINUED)

<TABLE>
<CAPTION>
                                                                1998       1999
                                                              --------   --------
<S>                                                           <C>        <C>
Trade Receivables:
  Nortel Networks...........................................   $2,382     $3,669
  Hutchinson Telecommunications Group.......................    1,352        509
  ADC Telecommunications....................................    2,042         --
                                                               ------     ------
                                                               $5,776     $4,178
                                                               ======     ======
</TABLE>

(11) COMMITMENTS

    (A) OPERATING LEASE COMMITMENTS

    The Company leases its facilities under noncancelable operating leases.
These leases expire at various dates ranging from December 1998 to March 2005.
Future minimum lease payments as of June 30, 1999, are as follows (in
thousands):

<TABLE>
<CAPTION>
YEAR ENDING JUNE 30
- -------------------
<S>                                                           <C>
    2000....................................................   $1,068
    2001....................................................    1,106
    2002....................................................    1,128
    2003....................................................      489
    2004....................................................       94
    Thereafter..............................................       83
                                                               ------
            Total minimum lease payments....................   $3,968
                                                               ======
</TABLE>

    Rent expense was approximately $775,000, $822,000, and $960,951 for the
years ended June 30, 1997, 1998, and 1999, respectively.

    (B) CONTRACT MANUFACTURERS

    The Company generally commits to purchase products from its contract
manufacturers to be delivered within the most recent 60 days covered by
forecasts with cancellation fees. As of September 10, 1999, the Company had
committed to make purchases totaling $2.7 million from these manufacturers in
the next 60 days. In addition, in specific instances, the Company may agree to
assume liability for limited quantities of specialized components with lead
times beyond this 60-day period.

(12) LITIGATION

    On June 28, 1999, the Company filed a complaint against JetCell Corporation
in United States District Court alleging misappropriation of trade secrets and
patent infringement. The complaint seeks injunctive relief and damages. On
July 19, 1999, JetCell filed an answer to the complaint and a series of
counterclaims against the Company. The answer denied the allegations made in the
complaint and the counterclaims included allegations against the Company of
unfair trade practices, unfair

                                      F-25
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(12) LITIGATION (CONTINUED)

competition, defamation, and patent misuse. The answer and counterclaims seek
injunctive relief, damages, invalidation of the Company's patents and a
dismissal of the complaint. The Company is unable to predict the outcome of the
lawsuit and does not expect it to be resolved in the near future. However, if
the Company is unable to settle these proceedings in a satisfactory manner, the
legal proceedings may be time consuming and expensive and the outcome could be
adverse to the Company. If the outcome is adverse to the Company, they would
experience more competition in the Company's markets and may be required to
license technology required for the Company's products, either of which could
harm the Company's business and financial results.

(13) EMPLOYEE BENEFIT PLANS

    The Company maintains a 401(k) defined contribution benefit plan that covers
all U.S. employees who have attained the age of at least 20.5 years. This plan
allows employees to defer up to 20% of their pretax salary in certain
investments at the discretion of the employee. The Company has the option to
make discretionary employer matching contributions. The Company did not make any
matching contributions to the plan during the years ended June 30, 1997, 1998
and 1999.

(14) GEOGRAPHIC SEGMENT INFORMATION

    In fiscal 1999, the Company adopted SFAS No. 131, DISCLOSURES ABOUT SEGMENTS
OF AN ENTERPRISE AND RELATED INFORMATION. SFAS No. 131 establishes standards for
the manner in which public companies report information about operating segments
in annual and interim financial statements. It also establishes standards for
related disclosures about products and services, geographic areas, and major
customers. The method for determining what information to report is based on the
way management organizes the operating segments within the Company for making
operating decisions and assessing financial performance. The Company's chief
operating decision-maker is considered to be the chief executive officer (CEO).
The financial information that the CEO reviews is identical to the information
presented in the accompanying statements of operations. Therefore, the Company
has determined that it operates in a single operating segment: manufacturing and
sale of compact mobile wireless network solutions.

    The following table presents information about the Company by geographic
area: (in thousands)

<TABLE>
<CAPTION>
                                                                          1997
                                                      ---------------------------------------------
                                                       UNITED
                                                       STATES      ASIA      EUROPE    CONSOLIDATED
                                                      --------   --------   --------   ------------
<S>                                                   <C>        <C>        <C>        <C>
Total net revenues..................................  $  1,229   $  1,639   $    344     $  3,212
Less: intercompany sales............................      (919)      (452)        --       (1,371)
Reported net revenues...............................       310      1,187        344        1,841
Net loss............................................   (24,248)    (2,215)    (2,719)     (29,182)
Property & equipment, net...........................     6,265        637        512        7,414

Percentage of reported net revenue..................     16.84%     64.48%     18.68%      100.00%
</TABLE>

                                      F-26
<PAGE>
         INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                FISCAL YEARS ENDED JUNE 30, 1997, 1998 AND 1999

(14) GEOGRAPHIC SEGMENT INFORMATION (CONTINUED)

<TABLE>
<CAPTION>
                                                                          1998
                                                      ---------------------------------------------
                                                       UNITED
                                                       STATES      ASIA      EUROPE    CONSOLIDATED
                                                      --------   --------   --------   ------------
<S>                                                   <C>        <C>        <C>        <C>
Total net revenues..................................  $  9,342   $  6,460   $  4,191     $ 19,993
Less: intercompany sales............................    (2,765)    (1,567)    (2,666)      (6,998)
Reported net revenues...............................     6,577      4,893      1,525       12,995
Net loss............................................   (24,501)    (4,484)    (1,837)     (30,822)
Property & equipment, net...........................     6,039        450        133        6,622

Percentage of reported net revenue..................     50.61%     37.65%     11.74%      100.00%

<CAPTION>
                                                                          1999
                                                      ---------------------------------------------
                                                       UNITED
                                                       STATES      ASIA      EUROPE    CONSOLIDATED
                                                      --------   --------   --------   ------------
<S>                                                   <C>        <C>        <C>        <C>
Total net revenues..................................  $ 13,697   $  4,930   $  2,847     $ 21,474
Less: intercompany sales............................    (1,620)    (2,561)        --       (4,181)
Reported net revenues...............................    12,077      2,369      2,847       17,293
Net loss............................................   (19,593)    (3,927)      (948)     (24,468)
Property and equipment, net.........................     4,709        502        123        5,334

Percentage of reported net revenue..................     69.84%     13.70%     16.46%      100.00%
</TABLE>

(15) SUBSEQUENT EVENTS (UNAUDITED)

    In November 1999, the Company completed an offering of 1,526,663 Series I-1
preferred shares to Alcatel in exchange for $12,013,304 (net of financing costs
of $200,000). The Series I-1 contains an $8 per share liquidation preference and
converts to common shares on a one-to-one basis. In connection with the sale of
Series I-1 preferred shares, the Company and Alcatel entered into a purchase and
distribution agreement whereby Alcatel will market the Company's wireless office
network products through their enterprise solutions division.

    In November 1999 the Company received a commitment from a financial
institution for a revolving line of credit in the amount of $5,000,000 for a one
year term subject to advances against eligible accounts receivable.

    The Company has recently signed a lease for approximately 56,000 square feet
in Menlo Park, California for our principal administrative and engineering
facilities. The five-year lease commences December 15, 1999. The Company expects
to sublet the premises in Redwood City following its relocation in early 2000
until the expiration of our Redwood City lease in 2002. Future minimum lease
payments for the new lease are as follows for the fiscal years ending June 30:

<TABLE>
<S>                                                           <C>
2000........................................................  $   878,582
2001........................................................    2,062,117
2002........................................................    2,144,604
2003........................................................    2,330,393
2004 and thereafter.........................................    3,703,768
                                                              -----------
                                                              $11,019,464
</TABLE>

    In December 1999, the Company sold 2,000,000 Series I-1 preferred shares to
Holodeck for $16 million on similar terms as the November 1999 sale of shares to
Alcatel.

                                      F-27
<PAGE>
- ---------------------------------------------------------
- ---------------------------------------------------------

                                8,500,000 SHARES

                            INTERWAVE COMMUNICATIONS
                              INTERNATIONAL, LTD.

                                 COMMON SHARES

                                     [LOGO]

                                     ------

                              P R O S P E C T U S

                                          , 2000

                                   ---------

                              SALOMON SMITH BARNEY
                         BANC OF AMERICA SECURITIES LLC
                                    SG COWEN

- ---------------------------------------------------------
- ---------------------------------------------------------
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 13.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

    The following table sets forth all expenses, other than the underwriting
discounts and commissions, payable by us in connection with the sale of the
common shares being registered. All of the amounts shown are estimates except
for the SEC registration fee, the NASD filing fee and the Nasdaq National Market
listing fee.

<TABLE>
<S>                                                           <C>
SEC Registration Fee........................................  $   30,967
NASD Filing Fee.............................................      12,230
Nasdaq National Market Listing Fee..........................      90,000
Blue Sky Qualification Fees and Expenses....................      10,000
Printing and Engraving Expenses.............................     350,000
Legal Fees and Expenses.....................................     350,000
Accounting Fees and Expenses................................     300,000
Transfer Agent and Registrar Fees...........................      25,000
Miscellaneous...............................................     181,803
                                                              ----------
    Total...................................................  $1,350,000
                                                              ==========
</TABLE>

ITEM 14.  INDEMNIFICATION OF DIRECTORS AND OFFICERS

        Our Bye-laws provide as follows:

    The Directors, Secretary and other Officers for the time being of the
Company and the liquidator or trustees (if any) for the time being acting in
relation to any of the affairs of the Company and every one of them, and their
heirs, executors and administrators, shall be indemnified and secured harmless
out of the assets of the Company from and against all actions, costs, charges,
losses, damages and expenses which they or any of them, their heirs, executors
or administrators, shall or may incur or sustain by or by reason of any act
done, concurred in or omitted in or about the execution of their duty, or
supposed duty, or in their respective offices or trusts, and none of them shall
be answerable for the acts, receipts, neglects or defaults of the others of them
or for joining in any receipts for the sake of conformity, or for any bankers or
other persons with whom any moneys or effects belonging to the Company shall or
may be lodged or deposited for safe custody, or for insufficiency or deficiency
of any security upon which any moneys of or belonging to the Company shall be
placed out on or invested, or for any other loss, misfortune or damage which may
happen in the execution of their respective offices or trusts, or in relation
thereto, PROVIDED THAT this Indemnity shall not extend to any matter in respect
of any fraud or dishonesty which may attach to any of said persons.

    The Company carries liability insurance which provides for coverage for
officers and directors of the Company and its subsidiaries, subject to certain
deductibles.

    In December 1999, the Registrant will enter into indemnification agreements
with its directors and officers providing for limitations on a director's and
officer's liability for judgments, settlements, penalties, fines, and expenses
of defense (including attorneys' fees, bonds and costs of investigation) arising
out of or in any way related to acts of omissions as a director or an officer,
or in any other capacity in which services are rendered to the Registrant. The
Registrant believes its indemnification agreements will assist it in attracting
and retaining qualified individuals to serve as directors and officers. The
agreements provide that a director or officer is not entitled to indemnification
under such agreements among other cases (i) if the director or officer is not
relieved of liability under applicable law, (ii) for violations of certain
securities laws, or (iii) for certain claims initiated by the officer or
director. In addition, indemnification may not be available to directors or
officers under Bermuda law if any act or omission by a director or officer
amounted to a failure to act honestly and in good faith

                                      II-1
<PAGE>
with a view to the best interests of the Company. Due to the lack of applicable
case law, it is not clear whether indemnification is available in the case of a
breach of securities laws of the United States.

    Insofar as indemnification for liabilities arising under the U.S. Securities
Act may be permitted to directors, officers or persons controlling the
Registrant pursuant to the foregoing provisions, the Registrant has been
informed that in the opinion of the United States Securities and Exchange
Commission such indemnification is against public policy as expressed in the
Securities Act and is therefore unenforceable.

ITEM 15.  RECENT SALES OF UNREGISTERED SECURITIES

    The following is a summary of transactions by the Company during the last
three years preceding the date hereof involving sales of the Company's
securities that were not registered under the Securities Act:

    - In March 1997, the Registrant sold a total of 1,500,000 Series F preferred
      shares at a price of $11.50 per share to UCOM Company International
      Limited for an aggregate purchase price of $17,250,000 net of financing
      costs of $0. Each Series F preferred share is convertible into one common
      share at the option of the holder, and will automatically convert into
      common shares at the consummation of Registrant's initial public offering.
      These shares were exempt from registration under Rule 506 of the
      Securities Act since the sale was to a corporation, which is defined as an
      accredited investor under Rule 501(a)(3) of the Securities Act.

    - Beginning in March 1998, the Registrant sold a total of 3,714,286
      Series G preferred shares and a warrant to purchase 2,000,000 Series G
      preferred shares at a price of $7.00 per share to Nortel Networks
      Corporation for an aggregate purchase price of $22,744,000 net of
      financing costs of $1,756,000 paid substantially to Goldman
      Sachs & Co., Inc. The consideration consisted of a $20,000,000 cash
      payment and the execution of a license agreement and a technical
      information agreement. The warrant expires on the earlier of March 27,
      2001, the consummation of an initial public offering or a sale of
      substantially all of the assets of the Registrant. Each Series G preferred
      share is convertible into one common share. In April 1999, the Registrant
      granted Nortel Networks Corporation a warrant to purchase 24,000 common
      shares at a purchase price of $1.15 per share. This warrant expires on
      April 22, 2002, upon consummation of an initial public offering or a sale
      of substantially all of the assets of the Registrant. These shares were
      exempt from registration under Rule 506 of the Securities Act since the
      sale was to a corporation, which is defined as an accredited investor
      under Rule 501(a)(3) of the Securities Act.

    - In March 1999, the Registrant entered into a convertible note and warrant
      agreement with 106 investors, all of which were existing shareholders of
      the Registrant. Pursuant to these note financings, the Registrant borrowed
      at 8% annual interest an aggregate amount of $12,691,830 and issued
      warrants to purchase 6,345,931 common shares at a purchase price of $0.70
      per share. These warrants expire on March 3, 2004. On September 10, 1999,
      these notes along with accrued interest converted according to their terms
      into 1,872,335 Series H1 preferred shares, and the Registrant granted the
      investors additional warrants to purchase 253,874 common shares at a
      purchase price of $1.00 per share. These warrants expire on the earlier of
      September 10, 2002, the consummation of an initial public offering or a
      sale of substantially all of the assets of the Registrant. Each Series H1
      preferred share is convertible into one common share. The note financings
      were exempt from registration under Rule 506 of the Securities Act since
      the sale was to 106 accredited investors, as defined and Rule 501 of the
      Securities Act.

    - Beginning in July 1999, the Registrant sold a total of 1,715,715
      Series H1 preferred shares and warrants to purchase 240,000 common shares
      at a price of $7.00 per share to three investors. The warrants expire on
      the earlier of three years from the issuance date or upon the consummation
      of an initial public offering. Each Series H1 preferred share is
      convertible into

                                      II-2
<PAGE>
      one common share. The shares were exempt from registration under Rule 506
      of the Securities Act since the sales were to three corporations, which
      are defined as accredited investors under Rule 501(a)(3) of the Securities
      Act.

    - In November and December 1999, the Registrant sold a total of 3,526,663
      Series I1 preferred shares at a price of $8.00 per share to Alcatel USA,
      Inc. and Holodeck Limited for an aggregate purchase price of $28,013,304
      net of financing costs of $200,000. Each Series I1 preferred share is
      convertible into one common share. These shares were exempt from
      registration under Rule 506 of the Securities Act since the sale was to a
      corporation, which is defined as an accredited investor under
      Rule 501(a)(3) of the Securities Act.

ITEM 16.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

    (A) EXHIBITS


<TABLE>
<C>                   <S>                                                           <C>
 1.1**                Form of underwriting agreement
 3.1**                Bye-laws of the Registrant with amendments
 3.2**                Form of Amended and Restated Bye-laws of the Registrant to
                        be filed and effective upon completion of this offering
 3.3**                Memorandum of Association
 4.1**                Form of the Registrant's common share certificates
 5.1                  Opinion of Conyers Dill & Pearman, Bermuda counsel to the
                        Registrant.
10.1**                Form of indemnification agreement
10.2**                1994 Stock Plan and form of stock option agreement and
                        restricted stock purchase agreement
10.3**                1999 Option Plan and form of subscription agreement
10.4**                1999 Share Purchase Plan and form of subscription agreement
10.5**                Lease between Marina Investments, Inc. and interWAVE
                        Communications Inc., dated February 15, 1999
10.6**                OEM purchase agreement between Registrant and Nortel
                        Networks Corporation, dated March 27, 1998
10.7+**               Purchase / resale agreement between Registrant and ADC
                        Telecommunications, Inc., dated February 27, 1997
10.8**                Assignment agreement among ADC Telecommunications, Inc.,
                        Microcellular Systems, Ltd. and the Registrant, dated
                        May 13, 1999
10.9**                Joint development agreement between Registrant and ADC
                        Telecommunications Inc., dated September 4, 1998
10.10**               Offer of employment between Registrant and Ian V. Sugarbroad
10.11**               Offer of employment between Registrant and Thomas W. Hubbs
10.13**               Amended and Restated Rights Agreement by and among
                        Registrant and certain shareholders, dated in August 1999
10.14**               Form of warrant by and between Registrant and Intasys
                        Corporation
10.15**               Form of warrant by and between Registrant and MediaTel
                        Capital
10.16**               Form of warrant by and between Registrant and Nortel
                        Networks Corporation
10.17**               Patent license agreement by and between Registrant and
                        Nortel Networks Corporation
10.18**               Technical information agreement by and between Registrant
                        and Nortel Networks Corporation
10.19**               Value-added services agreement between Registrant and
                        PEMSTAR, Inc.
</TABLE>


                                      II-3
<PAGE>

<TABLE>
<C>                   <S>                                                           <C>
10.20+**              Distribution and OEM agreement by and between Registrant and
                        Alcatel, dated October 27, 1999
10.21**               Lease between Tyco Electronics Corporation and interWAVE
                        Communications, Inc., dated November 24, 1999
10.22                 Base Station System Agreement by and between Registrant and
                        Lanka Cellular Services (PVT) Limited, dated
                        December 1999
21.1**                List of Subsidiaries
23.1                  Consent of KPMG LLP, independent public accountants
23.2                  Consent of counsel (included in exhibit 5.1)
24.1**                Power of attorney (See page II-5)
27.1**                Financial data schedule
</TABLE>


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

*   To be filed by amendment

**  Previously filed

+   Confidential treatment has been requested for portions of this exhibit.
    These portions have been filed separately with the SEC.

    (B) FINANCIAL STATEMENT SCHEDULES

    Schedules have been omitted because the information required to be set forth
therein is not applicable or is shown in the Consolidated Financial Statements
or the Notes thereto.

ITEM 17.  UNDERTAKINGS

        (a) The Registrant hereby undertakes to provide to the underwriter at
    the closing specified in the underwriting agreements certificates in such
    denominations and registered in such names as required by the underwriter to
    permit prompt delivery to each purchaser.

        (b) Insofar as indemnification for liabilities arising under the
    Securities Act of 1933 (the "Securities Act") may be permitted to directors,
    officers and controlling persons of the Registrant pursuant to the foregoing
    provisions, or otherwise, the Registrant has been advised that in the
    opinion of the Securities and Exchange Commission such indemnification is
    against public policy as expressed in the Securities act and is, therefore,
    unenforceable. In the event that a claim for indemnification against such
    liabilities (other than payment by the Registrant of expenses incurred or
    paid by a director, officer or controlling person of the Registrant in the
    successful defense of any action, suit or proceeding) is asserted by such
    director, officer or controlling person in connection with the securities
    being registered, the Registrant will, unless in the opinion of its counsel
    the matter has been settled by controlling precedent, submit to a court of
    appropriate jurisdiction the question whether such indemnification by it is
    against public policy as expressed in the Securities Act and will be
    governed by the final adjudication of such issue.

        (c) The undersigned Registrant hereby undertakes that:

           (i) For purposes of determining any liability under the Securities
       Act, the information omitted from the form of prospectus filed as part of
       this Registration Statement in reliance upon Rule 430A and contained in a
       form of prospectus filed by the Company pursuant to Rule 424(b)(1) or (4)
       or 497(h) under the Securities Act shall be deemed to be part of this
       Registration Statement as at the time it was declared effective; and

           (ii) For the purpose of determining any liability under the
       Securities Act, each post-effective amendment that contains a form of
       prospectus shall be deemed to be a new registration statement relating to
       the securities offered therein, and the offering of such securities at
       the time shall be deemed to be the initial bona fide offering thereof.

                                      II-4
<PAGE>
                                   SIGNATURES

    Pursuant to the requirements of the U.S. Securities Act of 1933, as amended
(the U.S. Securities Act), the Registrant certifies that it has reasonable
grounds to believe that it meets all of the requirements for filing on Form F-1
and has duly caused this Amendment to Registration Statement to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of Redwood
City, California, on the 27th day of January, 2000.

<TABLE>
<S>                                                    <C>  <C>
                                                       INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD.

                                                       By              /s/ PRISCILLA M. LU
                                                            -----------------------------------------
                                                                         Priscilla M. Lu
                                                                     CHIEF EXECUTIVE OFFICER
</TABLE>

                               POWER OF ATTORNEY

    We, the undersigned officers and directors of InterWAVE Communications
International, Ltd., do hereby constitute and appoint Priscilla M. Lu and
Thomas W. Hubbs, and each of them, our true and lawful attorneys-in-fact and
agents, each with full power of substitution and resubstitution, for him and his
name, place and stead, in any and all capacities, to sign any and all amendments
to this Registration Statement and any and all related registration statements
filed under Securities and Exchange Commission Rule 462, and to file the same,
with exhibits thereto, and other documents in connection therewith, with the
Securities and Exchange Commission, granting unto said attorneys-in-fact and
agents, and each of them, full power and authority to do and perform each and
every act and thing requisite or necessary to be done in and about the premises,
as fully to all intents and purposes as he might or could do in person, hereby
ratifying and confirming all that each of said attorneys-in-fact and agents, or
his substitute or substitutes, may lawfully do or cause to be done by virtue
hereof.

    Pursuant to the requirements of the U.S. Securities Act, this Registration
Statement has been signed by the following persons in the capacities and on the
date indicated:

<TABLE>
<CAPTION>
                      SIGNATURE                                   TITLE                    DATE
                      ---------                                   -----                    ----
<C>                                                    <S>                          <C>
                                                       Chief Executive Officer and
                 /s/ PRISCILLA M. LU                     Chairman of the Board
     -------------------------------------------         (Principal Executive        January 27, 2000
                   Priscilla M. Lu                       Officer)

                                                       Executive Vice President,
                 /s/ THOMAS W. HUBBS                     Chief Financial Officer
     -------------------------------------------         (Principal Financial and    January 27, 2000
                   Thomas W. Hubbs                       Accounting Officer)

                  /s/ PASCAL DEBON
     -------------------------------------------       Director                      January 27, 2000
                    Pascal Debon
</TABLE>

                                      II-5
<PAGE>

<TABLE>
<CAPTION>
                      SIGNATURE                                   TITLE                    DATE
                      ---------                                   -----                    ----
<C>                                                    <S>                          <C>
                   /s/ KEVIN FONG
     -------------------------------------------       Director                      January 27, 2000
                     Kevin Fong

               /s/ WILLIAM J. HARDING
     -------------------------------------------       Director                      January 27, 2000
                 William J. Harding

                    /s/ JAMES LOH
     -------------------------------------------       Director                      January 27, 2000
                      James Loh

                   /s/ MOSES TSANG
     -------------------------------------------       Director                      January 27, 2000
                     Moses Tsang

                 /s/ LORK SANG CHOW
     -------------------------------------------       Director                      January 27, 2000
                   Lork Sang Chow

                   /s/ ANDREW WANG
     -------------------------------------------       Director                      January 27, 2000
                     Andrew Wang

                 /s/ PRISCILLA M. LU
     -------------------------------------------       Authorized Representative     January 27, 2000
                   Priscilla M. Lu
</TABLE>

                                      II-6
<PAGE>
                               INDEX TO EXHIBITS


<TABLE>
<CAPTION>
      EXHIBITS                                                                             PAGE
- ---------------------                                                                    --------
<C>                        <S>                                                           <C>
       1.1**               Form of underwriting agreement

       3.1**               Bye-laws of the Registrant with amendments

       3.2**               Form of Amended and Restated Bye-laws of the Registrant to
                             be filed and effective upon completion of this offering

       3.3**               Memorandum of Association

       4.1**               Form of the Registrant's common share certificates

       5.1                 Opinion of Conyers Dill & Pearman, Bermuda counsel to the
                             Registrant.

      10.1**               Form of indemnification agreement

      10.2**               1994 Stock Plan and form of stock option agreement and
                             restricted stock purchase agreement

      10.3**               1999 Option Plan and form of subscription agreement

      10.4**               1999 Share Purchase Plan and form of subscription agreement

      10.5**               Lease between Marina Investments, Inc. and interWAVE
                             Communications Inc., dated February 15, 1999

      10.6**               OEM purchase agreement between Registrant and Nortel
                             Networks Corporation, dated March 27, 1998

      10.7+**              Purchase / resale agreement between Registrant and ADC
                             Telecommunications, Inc., dated February 27, 1997

      10.8**               Assignment agreement among ADC Telecommunications, Inc.,
                             Microcellular Systems, Ltd. and the Registrant, dated
                             May 13, 1999

      10.9**               Joint development agreement between Registrant and ADC
                             Telecommunications Inc., dated September 4, 1998

      10.10**              Offer of employment between Registrant and Ian V. Sugarbroad

      10.11**              Offer of employment between Registrant and Thomas W. Hubbs

      10.13**              Amended and Restated Rights Agreement by and among
                             Registrant and certain shareholders, dated in August 1999

      10.14**              Form of warrant by and between Registrant and Intasys
                             Corporation

      10.15**              Form of warrant by and between Registrant and MediaTel
                             Capital

      10.16**              Form of warrant by and between Registrant and Nortel
                             Networks Corporation

      10.17**              Patent license agreement by and between Registrant and
                             Nortel Networks Corporation

      10.18**              Technical information agreement by and between Registrant
                             and Nortel Networks Corporation

      10.19**              Value-added services agreement between Registrant and
                             PEMSTAR, Inc.

      10.20+**             Distribution and OEM agreement by and between Registrant and
                             Alcatel, dated October 27, 1999

      10.21**              Lease between Tyco Electronics Corporation and interWAVE
                             Communications, Inc., dated November 24, 1999

      10.22                Base Station System Agreement by and between Registrant and
                             Lanka Cellular Services (PVT) Limited, dated
                             December 1999

      21.1**               List of Subsidiaries
</TABLE>


<PAGE>


<TABLE>
<CAPTION>
      EXHIBITS                                                                             PAGE
- ---------------------                                                                    --------
<C>                        <S>                                                           <C>
      23.1                 Consent of KPMG LLP, independent public accountants

      23.2                 Consent of counsel (included in exhibit 5.1)

      24.1**               Power of attorney (See page II-5)

      27.1**               Financial data schedule
</TABLE>


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

*   To be filed by amendment

**  Previously filed

+   Confidential treatment has been requested for portions of this exhibit.
    These portions have been filed separately with the SEC.

<PAGE>
                                                                     EXHIBIT 5.1

                                January 28, 2000

    interWAVE Communications International, Ltd.
    656 Bair Island Road, Suite 108
    Redwood City, CA 94063

    RE: REGISTRATION STATEMENT ON FORM S-1

    Ladies and Gentlemen:

    We have examined the Registration Statement on Form F-1 filed by you with
the Securities and Exchange Commission (the "Commission") on or about
December 17, 1999 (as such may be further amended or supplemented, the
"Registration Statement"), in connection with the registration under the
Securities Act of 1933, as amended (the "Act"), of up to 9,775,000 of your
Common Shares (the "Shares"). The Shares, which include up to 1,275,000 Common
Shares issuable pursuant to an over-allotment option granted to the underwriters
(the "Underwriters"), are to be sold to the Underwriters as described in such
Registration Statement for sale to the public. As your special counsel in
Bermuda in connection with this transaction, we have examined the proceedings
proposed to be taken by you in connection with the issuance and sale of the
Shares.

    Based on the foregoing, it is our opinion that the Shares, when issued and
sold in the manner described in the Registration Statement, will be legally and
validly issued, fully paid and nonassessable under the laws of Bermuda.

    We consent to the use of this opinion as an exhibit to the Registration
Statement, and further consent to the use of our name wherever appearing in the
Registration Statement, including the prospectus constituting a part thereof,
which has been approved by us, as such may be further amended or supplemented,
or incorporated by reference in any Registration Statement relating to the
prospectus filed pursuant to Rule 462(b) of the Act.

                                          Very truly yours,
                                          CONYERS DILL & PEARMAN
                                          /s/ CONYERS DILL & PEARMAN

<PAGE>

                          BASE STATION SYSTEM AGREEMENT


                                     BETWEEN


                      LANKA CELLULAR SERVICES (PVT) LIMITED


                                        AND


                   interWAVE COMMUNICATIONS INTERNATIONAL LTD.

<PAGE>


THE AGREEMENT

<TABLE>
<CAPTION>

CLAUSE                                                                     PAGE
- ------                                                                     ----
<S>                                                                        <C>
          Definitions and Interpretation                                     1

1.        Scope of Work                                                      5

2.        Prices                                                             7

3.        Delivery Schedule and Delivery                                     7

4.        Adjustment for Late Achievement

5.        Inspection and Acceptance                                          9

6.        Title and Assumption of Risk                                      10

7.        Warranty of the Work, Equipment, Software and Services            11

8.        Payments                                                          13

9.        Taxes and Duties Indemnities                                      14

10.       Ownership of Intellectual Property Rights and Software Licenses   14

11.       Intellectual Property Rights - Warranty and Indemnity             15

12.       Training                                                          16

13.       Option                                                            16

14.       Confidentiality                                                   16

15.       Loss and Damage Indemnity                                         16

16.       Insurance                                                         17

17.       Key Personnel and Progress Reports                                19

18.       Changes                                                           20

19.       Assignment and Sub-contracting of Agreement                       21

20.       Publicity related to Agreement                                    21

21.       Expert Decisions                                                  21

22.       Time-limits                                                       21

<PAGE>

<S>                                                                        <C>
23.       Force Majeure                                                     22

24.       Termination for Default                                           22

25.       Government Authorizations

26.       Language and Communication                                        24

27.       Notices and Reports                                               25

28.       Waiver and Approvals                                              26

29.       Entire Agreement                                                  26

30.       No Joint Venture                                                  26

31.       Severability                                                      26

32.       Headings                                                          27

33.       Export Control                                                    27

34.       Re-Exportation                                                    27

35.       Applicable Law                                                    27
</TABLE>


APPENDIX AND SCHEDULE

Appendix  A              Proposed Delivery Schedule

Appendix B               Prices and Quantities

Schedule 1               Specifications

Schedule 2               Scope of Work

Schedule 3               Initial Acceptance Certificate
Annex to Schedule 3      Initial Acceptance Test Plan

Schedule 4               Customer Advocacy Plan
Annex to Schedule 4      Maintenance Agreement

Schedule 5               Confidentiality and Non-Disclosure Agreement

Annex                    Letter of Intent

<PAGE>

THIS AGREEMENT is made the            day of  December, 1999.


BETWEEN


(1)    LANKA CELLULAR SERVICES (PVT) LIMITED of 4th Floor, 1119 Maradana Road,
       Colombo 8, Sri Lanka (the "Purchaser"); and

(2)    interWAVE COMMUNICATIONS INTERNATIONAL LTD. of Codan Services, Claredon
       House, Church Street, Hamilton HM DX, Bermuda ("the Contractor").


WHEREAS


A.     The Contractor has issued a proposal for a System meeting the
       Specifications attached hereto as Schedule 1 for a technologically
       advanced, flexible, reliable and constantly evolving micro-cell base
       station system and related equipment and software.

B.     The Purchaser now wishes to confirm the appointment of the Contractor for
       the supply of the Equipment and Software and carrying out of the Work and
       the Contractor has agreed to provide and carry out the same subject
       always to the terms and conditions herein contained.


DEFINITIONS AND INTERPRETATION


A.     Capitalized terms used within this Agreement are defined as follows:


       "Agreement"                 shall mean this Agreement and all Appendices
                                   and Schedules attached hereto.

       "Associate"                 shall mean, in relation to any person, any
                                   person who for the time being controls such
                                   person or is controlled by such person or is
                                   controlled by a third person who also
                                   controls such person.

        "BSS"                      shall mean Base Station Subsystem groups and
                                   the Equipment as defined in the Groupe
                                   Speciale Mobile ("GSM") specifications set
                                   down by the European Telecommunications
                                   Standards Institute.


<PAGE>

       "Control"                   shall mean, in relation to a company, the
                                   power of a person directly or indirectly to
                                   secure:

                                   (i)    by means of the holding of shares or
                                          the possession of voting power (either
                                          at shareholder level or director
                                          level) in or in relation to that or
                                          any other company, or

                                   (ii)   by virtue of any powers conferred by
                                          the articles of association or other
                                          document regulating that or any other
                                          company that the affairs of that
                                          company are conducted in accordance
                                          with the wishes of that person, and
                                          "Controlled", "Controller" and cognate
                                          expressions shall be construed
                                          accordingly.

       "Customer Advocacy Plan"    shall mean the customer advocacy plan
                                   contained in Schedule 4, describing the
                                   support services to be provided by the
                                   Contractor to the Purchaser in relation to
                                   the operation of the System.

       "Delivery Point"            shall mean the port at Colombo, in Sri Lanka
                                   or any other delivery point as the Purchaser
                                   and the Contractor shall agree in writing
                                   from time to time.

       "Documentation"             shall mean all documentation described and
                                   referred to in Schedule 1 or required for the
                                   proper installation, maintenance and
                                   operation of the System including without
                                   limitation the User's Guide, Maintenance
                                   Manual, Operations Packet, Marketing Packet
                                   and their respective updates and revisions
                                   from time to time referred to by the
                                   Contractor in its Proposal.

       "Effective Date"            shall mean [13] December 1999.
       .
        "Equipment"                shall mean all, or where the context so
                                   requires any part or item of, the
                                   infrastructure, equipment, hardware and
                                   materials to be supplied by the Contractor
                                   under this Agreement, as more fully set out
                                   in the Proposal and further including without
                                   limitation the Expansion but only to the
                                   extent that the Purchaser exercises the
                                   Option.

       "Expansion"                 shall mean those elements of the Work and any
                                   other works which the Purchaser shall
                                   contract with the Contractor to supply and
                                   install pursuant to the Option.

<PAGE>

       "Expansion System"          shall mean those elements of the System to be
                                   supplied by the Contractor under the
                                   Expansion.

       "First Delivery"            means a "mini-system" of 60 units of
                                   WAVEXpress/BTS, 5 units of WAVEXpress/BSC, 3
                                   units of WAVEXchange/WXC and the OMC-R
                                   system, forming part of the Initial System or
                                   any reconfiguration or variation thereof as
                                   the Purchaser may request in accordance with
                                   Clause 1.3.

        "GSM System"               shall mean the Purchaser's proposed cellular
                                   radiotelephone system employing Groupe
                                   Speciale Mobile technology.

       "Initial Acceptance"        shall have the meaning ascribed to it in
                                   Clause 5.

       "Initial Acceptance
       Certificate"                shall mean the certificate issued by the
                                   Purchaser to the Contractor upon occurrence
                                   of the relevant Initial Acceptance.

       "Initial Acceptance Tests"  shall mean the initial acceptance testing
                                   procedures set out in Schedule 3 together
                                   with such further tests as the Purchaser and
                                   the Contractor may agree, to satisfy that the
                                   System complies with and performs in
                                   accordance with Specifications.

       "Initial System"            shall mean those elements of the System to be
                                   supplied by the Contractor under the Initial
                                   Work comprising the Phase I and Phase II
                                   Deployment in Sri Lanka.

       "Initial Work"              shall mean those elements of the Work marked
                                   as such in Appendix B.

       "Intellectual Property
       Rights"                     shall mean patents, trademarks, service
                                   marks, trade names, registered designs,
                                   designs, copyrights and other forms of
                                   intellectual or industrial property (in each
                                   case in any part of the world and whether or
                                   not registered or registrable and for the
                                   full period thereof and all extensions and
                                   renewals thereof and applications for
                                   registration of or otherwise in connection
                                   with the foregoing), know-how, inventions,
                                   formulae, confidential or secret processes,
                                   trade secrets and confidential information,
                                   and any protected rights

<PAGE>

                                   and assets, and any licenses and permissions
                                   in connection therewith.

       "Letter of Intent"          shall mean the letter of intent dated 7
                                   December 1999 from the Purchaser to the
                                   Contractor, countersigned by the Contractor,
                                   setting out the terms upon which the
                                   Purchaser will enter into this Agreement
                                   (which is attached to this Agreement as an
                                   Annex).

       "Milestones"                shall mean the last day of the time period or
                                   the date for completion of each item of Work
                                   set out in the Proposed Delivery Schedule.

        "Option"                   shall have the meaning ascribed to it in
                                   Clause 13.

       "Phase I Deployment"        shall mean the deployment of Phase I of the
                                   System, comprising the Equipment and Software
                                   to be delivered under the First Delivery.

       "Phase II Deployment"       shall mean the deployment of Phase II of the
                                   System, comprising the Equipment and Software
                                   to be delivered under the Second Delivery.

       "Proposal"                  shall mean the Contractor's proposal to
                                   supply the System meeting the Specifications
                                   as set out in Schedule 1.

       "Proposed Delivery          shall mean the schedule of Milestones set out
       Schedule"                   in Appendix A.


       "Quantities"                shall be as shown in Appendix B.

       "Sampling Process"          shall mean the sampling process set out in
                                   the Proposal.

       "Second Delivery"           means 54 units of WAVEXpress/BTS, 5 units of
                                   WAVEXpress/BSC and 4 units of
                                   WAVEXchange/WXC, forming part of the Initial
                                   System or any reconfiguration or variation
                                   thereof as the Purchaser may request in
                                   accordance with Clause 1.3.

       "Service Acceptance"        shall have the meanings ascribed to it in
                                   Clause 5.

       "Services"                  shall mean maintenance, repair, training,
                                   testing, engineering, installation,
                                   commissioning or other

<PAGE>

                                   services performed by the Contractor under
                                   the terms of this Agreement.

       "Service Acceptance
       Certificate"                shall mean the certificate issued by the
                                   Purchaser upon the occurrence of the relevant
                                   Service Acceptance.

       "Site"                      shall mean the site(s) at which the Equipment
                                   is to be installed, as from time to time
                                   notified by the Purchaser.

       "Software"                  shall mean such computer programs, or parts
                                   thereof, in any language form or medium, to
                                   be furnished by the Contractor under this
                                   Agreement, including without limitation the
                                   computer software described in the Proposal
                                   and further including without limitation the
                                   Software forming part of the Expansion, but
                                   only to the extent that the Purchaser
                                   exercises the Option.

       "Specification"             shall mean those technical and operational
                                   specifications for the Equipment, Software
                                   and System set out in the Proposal and shall
                                   include any additional specifications agreed
                                   between the Contractor and the Purchaser from
                                   time to time to be annexed hereto including
                                   in respect of the Option, if exercised by the
                                   Purchaser.

       "System"                    shall mean the Equipment and the Software
                                   combined on a fully functional and
                                   interactive basis with the GSM System in
                                   accordance with the Proposal.

       "Warranty Period"           shall mean with respect to an item of
                                   Equipment or Software, the period of twelve
                                   (12) months commencing on the date of Initial
                                   Acceptance of that Equipment or Software.

       "Work"                      shall mean all Equipment, Software, Services,
                                   Documentation, and other requirements to be
                                   supplied or carried out or met by the
                                   Contractor under this Agreement including
                                   those in the Expansion (but only to the
                                   extent that the Purchaser exercises the
                                   Option).

B.     A reference in this Agreement to an act or to any regulation, ordinance,
       code or other statutory instrument or to any section or provision thereof
       shall be read as if the words "or any other statutory provision having
       the like or similar effect or dealing with the like or similar subject
       matter" were added to such reference, and such reference shall include
       any statute or statutory provision which amends or replaces, or has
       amended or

<PAGE>

       replaced it, and shall include any sub-ordinate legislation made under
       the relevant statute.

C.     References in this Agreement to Clauses, Paragraphs, Schedules and
       Appendices are to clauses, paragraphs, schedules and appendices of and to
       this Agreement.

D.     In this Agreement, words importing the singular include the plural and
       vice versa, words importing a gender include every gender and references
       to persons include bodies corporate or unincorporate.

E.     Headings in this Agreement are for convenience only and shall not affect
       the construction of this Agreement.

F.     Should there be any ambiguity, conflict or inconsistency between these
       terms and conditions and any of the Appendices and Schedules, these terms
       and conditions shall prevail save as expressly provided for herein.


1.     SCOPE OF WORK

1.1    Subject to Clause 1.4, the Contractor shall:

       (a)    provide the Initial System and, subject to the exercise of the
              Option by the Purchaser, the Expansion in accordance with the
              terms of this Agreement;

       (b)    otherwise provide and execute the Work and for this purpose shall
              provide all necessary personnel, material, equipment, services and
              facilities required under the terms and conditions of this
              Agreement including all appendices and schedules hereto set out
              below and by this reference made part hereof:

<TABLE>
<CAPTION>

<S>                                       <C>
              Appendix A                  Proposed Delivery Schedule
              Appendix B                  Prices and Quantities
              Schedule 1                  Specifications
              Schedule 2                  Scope of Work
              Schedule 3                  Initial Acceptance Certificate
              Annex to Schedule 3         Initial Acceptance Requirements
              Schedule 4                  Customer Advocacy Plan
              Schedule 5                  Confidentiality and Non-Disclosure
                                          Agreement
</TABLE>

       (c)    have the role of contractor during the term of this Agreement in
              accordance with the allocation of responsibilities set out in
              Schedule 2; and

       (d)    if the Option is exercised pursuant to Clause 13 hereof, then
              continue its role as  contractor during the term of the Expansion
              in accordance with the allocation of responsibilities set out in
              Schedule 2 (applicable only, if the Purchaser exercises the
              Option).

1.2    The Purchaser agrees to purchase from the Contractor the Equipment
       comprised in the System and to license from the Contractor the Software
       comprised in the System, and

<PAGE>

       the Contractor agrees to sell and license the same respectively to the
       Purchaser subject to, and in accordance with, the terms of this
       Agreement.

1.3    The Purchaser may at its option exercisable by issuing a purchase order
       to the Contractor which relates to, or includes all or part of the same,
       elect to: (a) acquire from the Contractor any Equipment or Software
       listed in Appendix B as optional in relation to the Initial Work or the
       Expansion (applicable only if the Purchaser exercises the Option) and
       upon the exercise of such option, such Equipment and Software shall form
       part of the Work; or (b) vary the configuration of the Equipment to be
       delivered under the First Delivery or the Second Delivery in accordance
       with the principles set out in paragraph 2(a) of the Letter of Intent, if
       the Purchaser's evaluation of the conditions at Site make such variance
       necessary or desirable for the optimum performance of the System; or (c)
       replace the single billing platform with a multiple, PC-based pre-paid
       platform in accordance with the principles set out in paragraph 2(b) of
       the Letter of Intent.


1.4    For the avoidance of doubt, both parties agree that:-

       (a)    The Purchaser shall not place any orders for the Expansion, or
              otherwise, before the Purchaser has accepted the First Delivery in
              accordance with Clause 3.5; and/or

       (b)    any Equipment Software, Documentation or Services comprised in the
              First Delivery shall be subject to and produced, delivered and
              provided in accordance with all the terms and conditions of this
              Agreement (and in particular but without limitation Appendix A) to
              the extent that they are reasonably capable of applying thereto.


2.     PRICES

2.1    For the full and timely completion by the Contractor of the Work, the
       Contractor shall be entitled to payment by the Purchaser of the prices as
       specified in Appendix B subject to the terms and conditions contained
       herein.  For the avoidance of doubt, if the Purchaser elects to (i) vary
       the configuration of Equipment to be delivered in accordance with Clause
       1.3(b) or (ii) replace any Equipment in accordance with Clause 1.3(c),
       the prices payable by the Purchaser shall be re-evaluated by reference to
       the relevant provisions of the Letter of Intent and by reference to the
       prices stated in Appendix B.

<PAGE>

2.2    Subject to the terms and conditions contained herein, the prices stated
       for the Initial Work in Appendix B shall be fixed provided that the
       Purchaser places purchase orders for the same on or before the date
       falling 7 days after the acceptance of the First Delivery in accordance
       with Clause 3.5 and the prices stated for the Expansion shall be fixed
       until the date falling six months after the acceptance of the Second
       Delivery.

2.3    All prices shall include all transportation and related charges for
       delivery of the items to the Delivery Point and all applicable taxes,
       duties and similar liabilities, other than taxes and duties applicable in
       Sri Lanka.


3.     DELIVERY SCHEDULE AND DELIVERY

3.1    The Contractor shall deliver the Initial System in accordance with the
       Proposed Delivery Schedule specified in Appendix A and shall assist with
       the installation and commissioning of the Initial System in accordance
       with Schedule 2 hereto, time being of the essence of this Agreement.
       Upon exercise of the Option pursuant to Clause 14 in respect of the
       Expansion the Contractor shall deliver the Expansion System in accordance
       with the Proposed Delivery Schedule and shall assist with the
       installation and commissioning of the Expansion System in accordance with
       scope of work agreed between the parties at the time of the exercise of
       the Option, which schedule and scope of work will then be attached and
       comprise a part of this Agreement, time being of the essence of this
       Agreement.

3.2    Delivery of Equipment or Software or completion of Services shall not be
       deemed to have occurred until the Contractor has provided all supporting
       equipment, computer software and services required under the terms of the
       Proposal.  The provision of such Equipment and Services is of the essence
       of this Agreement.

3.3    Subject to Clause 3.2 above, an individual item of delivery of Equipment
       or Software, as the case may be, shall be deemed to have occurred at the
       time it has arrived at the Delivery Point  in a condition fully
       conforming to the requirements of this Agreement.  In the case of
       subsequent rejection of any individual item of Equipment or Software
       delivered, delivery shall be deemed not to have occurred until the
       defects that resulted in such rejection have been satisfactorily remedied
       or replaced with conforming Equipment or Software.

3.4    The Contractor shall be responsible and bear all the costs and liability
       in relation to the shipment of the Equipment to the Delivery Point.

3.5    Without prejudice to Clause 5 or Clause 6.2, for evaluation purposes the
       First Delivery shall only be accepted upon confirmation of satisfactory
       field trial test results.  The field trial test procedures shall be
       mutually agreed between the parties as soon as practicable following
       execution of this Agreement.

<PAGE>

3.6    The Contractor shall liaise with the Purchaser with respect to the
       delivery of each shipment of equipment, including with respect to the
       estimated date of arrival of each shipment, the actual date of arrival
       when it becomes known and any other information relevant to the timely
       and proper collection of the Equipment by the Purchaser from the Delivery
       Point.  Without limiting the foregoing, the Contractor will provide the
       Purchaser will all documentation necessary for the Purchaser to accept
       delivery of and to acquire proper legal title to each shipment at the
       Delivery Point.


4.     ADJUSTMENTS FOR LATE ACHIEVEMENT

4.1    The First Delivery, the Second Delivery, the Initial System or the
       Expansion System (in the latter case, applicable only when the Purchaser
       exercises the Option) must be delivered  in accordance with this
       Agreement and not later than the set Milestones (the "Achievement Time"),
       time being of the essence.  In the event that First Delivery, the Second
       Delivery, the Initial System or the Expansion System (in the latter case,
       applicable only when the Purchaser exercises the Option) or any part
       thereof is not delivered  by the applicable Achievement Time, then upon
       the Purchaser serving a notice to the Contractor advising the Contractor
       of the same, the aggregate price payable in respect of First Delivery,
       the Second Delivery, the Initial System or the Expansion System (in the
       latter case, applicable only when the Purchaser exercises the Option)
       shall, if already paid by the Purchaser, be refunded in accordance with
       Clause 8.3 and such refunds shall be calculated according to the
       following percentages, or if not yet paid by the Purchaser, shall be
       deducted by the following percentages:-

       (a)    5%, if the Achievement Time is delayed by one month or part
              thereof; or
       (b)    6%, if the Achievement Time is delayed by two months or part
              thereof; or
       (c)    7%, if the Achievement Time is delayed by three months or part
              thereof.

       PROVIDED ALWAYS that the time for achievement of a Milestone may be
       extended to the extent reasonable if that Milestone has not been achieved
       by reason of a breach of this Agreement caused solely by the Purchaser,
       provided further that in each case the Contractor has notified the
       Purchaser in writing specifying reasonable particulars of the alleged
       breach within fourteen (14) days after it becomes aware of the relevant
       event or breach.

4.2    The Parties recognise and agree that the sums provided in Clause 4.1 are
       reasonable pre-estimates of the damage which may occur to the Purchaser
       taking into account all the relevant information available at the time of
       signature of this Agreement and that such sums are liquidated damages and
       in no way to be considered as penalties.

<PAGE>

4.3    Nothing in this Clause shall be construed as limiting the right of the
       Purchaser to terminate this Agreement in whole or in part in accordance
       with any provision of this Agreement or at law as a consequence of such
       late delivery or completion.


5.     INSPECTION AND ACCEPTANCE

5.1    Those elements of the Initial Acceptance Tests to be carried out at the
       Contractor's facilities shall be undertaken by the Contractor at least
       fourteen (14) days prior to  delivery of the Initial System and the
       Expansion System respectively.  The Contractor shall give to the
       Purchaser not less than seven (7) days notice in writing of the date and
       time on and at which the aforementioned Initial Acceptance Tests shall be
       performed and the Purchaser shall have the right to be present throughout
       and witness the same.  The Contractor shall within 7 days of completion
       of the tests, supply the test results of the aforementioned Initial
       Acceptance Tests to the Purchaser.

5.2    Those elements of the Initial Acceptance Tests to be carried out at the
       Site shall be undertaken by the Contractor within 10 days after receiving
       written notice from the Purchaser to carry out the same, such notice to
       be given by the Purchaser at least twenty-one (21) days before the
       anticipated commercial launch of the System as specified in the Proposed
       Delivery Schedule.  The Contractor shall give to the Purchaser not less
       than seven (7) days notice in writing of the date and time on and at
       which the aforementioned Initial Acceptance Tests shall be performed and
       the Purchaser shall have the right to be present throughout and witness
       the same. The Contractor shall within 7 days of completion of the test,
       supply the test results of the aforementioned Initial Acceptance Tests to
       the Purchaser.

5.3    Upon completion of the Initial Acceptance Test referred to in clause 5.2,
       the Purchaser shall notify the Contractor either:-

       (a)    of its acceptance of the Initial Acceptance Tests in which case
              Initial Acceptance of the Initial System or the Expansion System
              (in the latter case, only applicable when the Purchaser exercises
              the Option) shall have occurred upon the issuance of an Initial
              Acceptance Certificate; or

       (b)    of those particulars in respect of which the System does not fully
              comply with or perform in accordance with the Specifications and
              the Proposal, then upon remedy of such particulars and compliance
              of the System with the requirements of this Agreement, the
              Purchaser shall accept the Initial System or the Expansion System
              (in the latter case, only applicable when the Purchaser exercises
              the Option) whereupon an Initial Acceptance Certificate shall be
              issued.

       Both parties agree that upon the issuance of the Initial Acceptance
       Certificate, the Initial Acceptance shall be deemed to have occurred.

5.4    (a)    Service Acceptance means acceptance of the Initial System by the
              Purchaser when the Initial System and each and every feature
              thereof described in the Proposal, is compatible and integrated
              with every other item of the System and has operated in a
              technically and commercially acceptable manner to the

<PAGE>

              Purchaser for a consecutive period of ninety (90) days from date
              of connection of the Initial System to the GSM System; or

       (b)    Service Acceptance means acceptance of the Expansion System by the
              Purchaser when the Expansion System and each and every feature
              thereof described in the Proposal, is compatible and integrated
              with every other item of the System and has operated in a
              technically and commercially acceptable manner to the Purchaser
              for a consecutive period of ninety (90) days from date of
              connection of the Expansion System to the GSM System.

       The Purchaser shall issue a Service Acceptance Certificate to the
       Contractor upon the occurrence of Service Acceptance described at 5.4 (a)
       or 5.4 (b) above, as relevant.  Both parties agree that upon the issuance
       of the relevant Service Acceptance Certificate, the relevant Service
       Acceptance, shall be deemed to have occurred.

5.5    The Work may at any time and from time to time be inspected or evaluated
       by the Purchaser and the Purchaser shall notify the Contractor of those
       particulars in respect of which the Work does not fully conform to the
       requirements of this Agreement.

5.6    Remedy of any particulars referred to in this Clause 5 or repeat tests as
       required by the Purchaser shall be effected or undertaken by the
       Contractor at its cost, promptly upon receipt of notice by the Purchaser.
       If the Contractor fails to remedy any such particulars promptly, the
       Purchaser may elect to have any or all such particulars remedied through
       other means, in which event the Contractor shall pay all reasonable costs
       incurred by the Purchaser in so remedying such particular(s); provided
       that the Purchaser shall provide the Contractor with a written notice
       reasonably setting out the reasons that the Purchaser believes that the
       Contractor has failed to remedy such particulars.

5.7    Nothing in this Clause shall relieve the Contractor of its obligation to
       comply with the delivery schedule referred to in Appendix A hereof, nor
       limit the Purchaser's right to terminate this Agreement, in whole or in
       part, in accordance with other provisions of this Agreement or at law.

5.8    If, in relation to the First Delivery, the Second Delivery or the
       Expansion System, the Site is not ready for installation of the relevant
       Equipment within sixty (60) days of the Milestone date applicable to that
       delivery as specified in Appendix A:

       (i)    the Purchaser will be deemed to have accepted the Phase I
              Deployment or Phase II Deployment of the Initial System (or the
              Expansion System), as the case may be) and to have issued an
              Initial Acceptance Certificate in accordance with Clause 5.3(a) on
              the sixty first (61st) day after the applicable Milestone date (or
              the milestone set for delivery of the Equipment to be delivered
              under the Expansion) ; and

       (ii)   the Purchaser will be deemed to have accepted the Phase I
              Deployment or Phase II Deployment of the Initial System (or the
              Expansion System), as the case may be) and to have issued a
              Service Acceptance Certificate under Clause 5.4 (a) or 5.4(b) (as
              relevant) on the ninety first (91st  ) day after the applicable
              Milestone

<PAGE>

              date (or the milestone set for delivery of the Equipment to be
              delivered under the Expansion).


6.     TITLE AND ASSUMPTION OF RISK

6.1    The Contractor warrants to the Purchaser that it will deliver to the
       Purchaser good title to each and every item comprised in the Equipment
       and the rights to use the Software, free from any claim, lien, pledge,
       mortgage, security interest, charge or other encumbrance, including, but
       not by way of limitation, those arising out of the performance of the
       Work.

6.2    Subject to Clause 7 below title to Equipment shall pass to the Purchaser
       upon delivery of the Equipment to the Delivery Point.  After the issuance
       of the relevant Service Acceptance Certificate in respect of any
       Equipment, the Purchaser shall be free to deal with, use, dispose of by
       sale or otherwise, pledge, charge or place any other encumbrance over the
       Equipment, as the Purchaser shall in its sole discretion deem fit.

6.3    The Contractor shall bear the full risk of loss for all Equipment,
       Software and other items of the Work until title thereto has passed to
       the Purchaser pursuant to Clause 6.2.  In the event that any item of Work
       is returned to the Contractor for remedy of any fault or non-performance,
       risk shall pass back to Contractor at the point of dispatch.

6.4    Title to and the rights in Software shall be in accordance with the
       provisions of Clause 10 below.


7.     WARRANTY OF THE WORK, EQUIPMENT, SOFTWARE AND SERVICES

7.1    Without limiting any other warranties or undertakings contained in this
       Agreement or implied by law, the Contractor warrants and undertakes that:

       (a)    each item of the System will in all respects conform to, perform
              in accordance with, have the features and otherwise meet the
              Proposal and Specifications;

       (b)    the System and each item of the Equipment and Software shall be
              properly and completely installed;

       (c)    all the Work to be provided hereunder shall conform in design,
              performance and materials to the requirements of this Agreement
              and shall be free from defects in design, material, performance or
              workmanship for the Warranty Period (however, defects which the
              Purchaser considers to be non substantial and

<PAGE>

              routine in the Software shall not be regarded as a breach of this
              Warranty) and be of the most suitable grade and quality for the
              purpose intended;

       (d)    all Services to be provided hereunder shall be performed in a
              skillful and workmanlike manner, both in accordance with the
              Proposal and all applicable Specifications and other requirements
              of this Agreement;

       (e)    each item of Equipment and Software comprised in the Initial
              System will be compatible and integrated with every other item of
              the System and the Expansion System will be compatible and
              integrated with the Initial System and the System;

       (f)    the Software will conform with the Contractor's then current
              published specifications when delivered and will represent the
              latest and most up to date version; and

       (g)    each item of Equipment and Software supplied by the Contractor
              will not infringe any patent, copyright, trade secrets or
              proprietary rights of the Purchaser and any third party.

       The above warranties ("the Warranties") shall continue to apply
       notwithstanding any acceptance of all or part of the Work, or payment by
       the Purchaser.

7.2    The Purchaser shall be entitled at any time during the Warranty Period
       and irrespective of prior inspections or acceptances, to reject any item
       of the Software or Equipment not conforming with any of the Warranties.
       During the Warranty Period the Contractor shall, at no cost to the
       Purchaser, make good and rectify such Equipment or Software or, at the
       Purchaser's option, the Contractor shall replace any item of Equipment or
       Software not conforming with the Warranties with conforming Equipment or
       Software.  Any Equipment or Software not conforming to any of the
       Warranties shall be repaired or replaced at the Site unless the
       Contractor is not reasonably able to do so in which case it shall be
       returned to the Contractor with risk passing as provided for in Clause
       7.5 hereof.  If the Contractor fails to correct or replace such defective
       Equipment promptly after notification and authorization from the
       Purchaser, the Purchaser may, by agreement or otherwise, correct or
       replace such defective Equipment and recover the cost thereof from the
       Contractor.  After notification of a defect to the Contractor, the
       Purchaser may elect not to require correction or replacement of such
       defective Equipment and, in such event, the Contractor, if required by
       the Purchaser, shall refund such portion of the price as is equitable in
       the circumstances as agreed between the parties or in default of
       agreement as determined under Clause 21.

7.3    The Warranties shall continue as to corrected or replaced items for the
       balance of the Warranty Period of the corrected or replaced item or for
       ninety (90) days after the date of acceptance by the Purchaser of the
       corrected or replaced items, whichever is longer.

7.4    Shipping, freight and insurance charges, in respect of warranty claims
       during the Warranty Period shall be met by the Contractor.  Such charges
       shall be prepaid by the Contractor or, it the Purchaser agrees, paid by
       the Purchaser on the Contractor's behalf in which case any such charges
       shall be reimbursed by the Contractor under Clause 8.3 or may (at the
       Purchaser's option) be set-off by the Purchaser under Clause 8.4.

<PAGE>

       In the event that the parties determine and agree that a warranty claim
       was incorrectly made, the Purchaser shall be liable for such charges in
       respect of that claim.

7.5    Any item replaced will, subject to Clause 7.3 hereof, be deemed to be on
       an exchange basis and the item provided to the Purchaser in exchange
       shall be the sole property of the Purchaser.  Title of the item to be
       replaced shall pass to Contractor on acceptance of the new item by the
       Purchaser.  Risk in the item to be replaced shall pass to Contractor at
       point of dispatch.  Title and risk of the replacement item shall pass to
       the Purchaser upon acceptance of that item.

7.6    The Contractor shall effect repair, correction or replacement of any
       defective item as soon as possible and in any event within thirty (30)
       days from receipt of the item at its facilities or, from the date of
       receipt of notice of defect if the Contractor repairs or replaces the
       defective item at the Site, save where the defect in the sole opinion of
       the Purchaser causes downtime or impacts the performance of the System in
       which case the repair or replacement must be provided in accordance with
       the procedures and time limits specified in the Customer Advocacy Plan.

7.7    Any dispute as to the applicability of any warranty claim shall be
       resolved in accordance with Clause 21 hereof.

7.8    The Contractor shall provide the facilities and services set out in the
       Customer Advocacy Plan. If the Purchaser so requires, the Contractor and
       the Purchaser shall enter into a Maintenance and Support Agreement, in
       the terms of the draft Maintenance and Support Agreement contained in
       Schedule 4. A manager shall be designated as being responsible to the
       Purchaser for provision of facilities and services to be provided under
       the Customer Advocacy Plan (and the Maintenance and Support Agreement, if
       the parties enter into the same). Such manager shall be designated as a
       "Key Person" in accordance with the terms of Clause 17.1 hereof and shall
       be provided with full representative authority to bind the Contractor in
       respect of any warranty claim made by the Purchaser.

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


8.     PAYMENTS

<PAGE>

8.1    The applicable fixed prices for the Work set out in Appendix B hereof,
       shall be invoiced by the Contractor as they fall due as follows:

       (a)    ten percent (10%) upon receipt of purchase order for First
              Delivery and the Second Delivery (as provided for in Appendix B)
              in respect of the Initial System or, if later, upon receipt by the
              Purchaser of an import license for the Equipment from government
              authorities in Sri Lanka; and ten percent (10%) upon receipt of
              the purchase order for the Expansion System;

       (b)    sixty-five percent (65%) upon the issuance of the Initial
              Acceptance Certificate in accordance with Clause 5.3 or the deemed
              issuance of the Initial Acceptance Certificate under Clause 5.8;

       (c)    twenty percent (20%) upon receipt of the relevant Service
              Acceptance Certificate as set out in Clause 5.4 or the deemed
              issuance of the Service Acceptance Certificate pursuant to Clause
              5.8; and

       (d)    five percent (5%) upon expiry of the Warranty Period or, if later,
              ninety (90) days after the acceptance by the Purchaser of any
              corrected or replaced items under Clause 7.3.

       (e)    In addition, the Contractor shall be entitled to invoice the
              Purchaser for the price of service orders as described in Appendix
              B, in accordance with the following payment schedule:

<TABLE>
<CAPTION>

- -------------------------------------------------------------------------------
        MILESTONE                             PAYMENT (% OF CONTRACT / ORDER
                                              SUM)
- -------------------------------------------------------------------------------
<S>                                           <C>
        Placement of order (i.e. upon         10 %
        ordering) or, if later, upon receipt
        by the Purchaser of an import
        license for the Equipment from
        government authorities in Sri Lanka
- -------------------------------------------------------------------------------
        a.     Customer Training              90 % on completion
- -------------------------------------------------------------------------------
        b.     Maintenance Service or On-     Quarterly payment in advance
               site Engineering Support
- -------------------------------------------------------------------------------
        c.     Installation & Commissioning   -      same as 8.1 (a) - (d)
- -------------------------------------------------------------------------------
</TABLE>

8.2    Each payment in accordance with Appendix B and Clause 8.1 hereof shall be
       paid within thirty (30) days following receipt by the Purchaser of a duly
       executed invoice  correctly submitted by the Contractor certifying that
       all the requirements for a particular payment for which payment is
       claimed have been fully completed.  No partial delivery payments will be
       made.  If the Purchaser concludes that the requirements have not been
       fulfilled, the applicable payment shall not be made until the end of the
       month following the

<PAGE>

       month of receipt of a correctly submitted invoice and after the Purchaser
       has determined that the requirements have been completed.

8.3    REFUNDS BY CONTRACTOR

       Any refund payable by the Contractor under this Agreement shall be paid
       within thirty days (30) following formal written notification by the
       Purchaser of required refund unless deducted by the Purchaser from
       amounts due to the Contractor pursuant to paragraph 8.4 of this Clause.
       Any dispute which may arise from the provisions of this Clause shall be
       resolved in accordance with the terms of Clause 21 hereof.

8.4    RIGHT OF SET-OFF

       Any amount to be paid, credited or refunded by the Contractor to the
       Purchaser under this Agreement may be deducted from any payments due, or
       to become due by the Purchaser to the Contractor on any account.


9.     TAXES AND DUTIES INDEMNITIES

9.1    The Contractor shall assume responsibility for, and shall hold the
       Purchaser harmless from, all taxes, duties, and similar liabilities,
       including any interest or penalties related thereto, which may be
       required to be paid by the Contractor under any present national, or
       local law or laws, which become due by reason of the exportation of the
       Equipment and Software to Sri Lanka and/or the performance of the Work in
       Sri Lanka or any subcontract hereunder, and shall execute and deliver any
       instruments, and comply with any requirements of such laws, as may be
       necessary thereunder to effectuate this Agreement.


10.    OWNERSHIP OF INTELLECTUAL PROPERTY RIGHTS AND SOFTWARE LICENSES

10.1   All Intellectual Property Rights in the Software and Documentation shall
       remain vested in the Contractor.

10.2   The Contractor, as licensor, hereby grants the Purchaser, as licensee, a
       royalty-free, perpetual, non-exclusive, irrevocable, worldwide license in
       the Intellectual Property Rights in the Software and Documentation, for
       which the use fee has been included in this Agreement, in so far as
       necessary to enable the Purchaser to:

       (a)    use the Software and Documentation; and

       (b)    duplicate any Software and Documentation for back-up purposes
              only.

10.3   The Software shall be supplied to the Purchaser in a machine readable
       form or stored in semi-conductor memories.

10.4   A master copy of the Software and Documentation (the "Master Copy") shall
       be kept in escrow by an independent third party agreed between the
       parties.  The Master Copy

<PAGE>

       shall only be released in the circumstances set out in Clause 24.1 (c) or
       upon the receipt of a written demand executed by both parties.

10.5   The Purchaser agrees to take all reasonable steps necessary to ensure
       that the Software is not disclosed or duplicated in whole or in part for
       use by third parties, including those steps the Purchaser would take to
       protect information, data or other property of its own which it regards
       as proprietary or confidential.

10.6   In the event that the Purchaser should dispose, resell or divest itself
       of any Equipment in the System which includes any Software, the Purchaser
       shall promptly notify the Contractor of such activity and ask for the
       Contractor's written consent (such consent shall not be unreasonably
       withheld) to a royalty free transfer of the license referred to at Clause
       10.7.  Such request shall be promptly dealt with by the Contractor.  In
       the event that the Contractor fails to respond to such request by the
       Purchaser within 30 days of the request, the Contractor shall be deemed
       to have given such consent.

10.7   Forthwith upon signing of this Agreement, the Contractor and the
       Purchaser shall execute a software license, on terms to be agreed upon
       between the parties.  In the event of any inconsistency between this
       Agreement and the terms of the software licenses, the provisions of this
       Agreement shall prevail to the extent of any inconsistency.


11.    INTELLECTUAL PROPERTY RIGHTS - WARRANTY AND INDEMNITY

11.1   The Contractor warrants that it has all Intellectual Property Rights
       necessary to enable the Contractor to meet its obligations under this
       Agreement.

11.2   The Contractor further warrants that the supply or undertaking of any
       item of the Work, and the installation and commissioning of the System,
       will not infringe (or cause the Purchaser to infringe by reason of use of
       the System or otherwise) the Contractor's  or any third party
       Intellectual Property Rights.  The Contractor shall indemnify the
       Purchaser completely and at all times from all damages costs and expenses
       arising from any claim or demand based on an allegation of such
       infringement.  The Contractor shall, at the request of the Purchaser,
       defend at the Contractor's own cost any or all such claims or demand.

11.3   In the event of any such claim or demand, or in the opinion of the
       Contractor such a claim or demand is likely, then the Contractor shall at
       its own option and expense either:

       (a)    secure a license or other arrangement to enable the Purchaser to
              continue to use or receive the benefit of the Work undertaken by
              the Contractor and of the System; or

       (b)    modify that aspect of the Work which is claimed to be an
              infringement such that it no longer constitutes an infringement.
              Any such modification shall not degrade performance; or

       (c)    the Contractor shall refund the purchase price to the Purchaser.

<PAGE>

       The provisions of this Clause shall be without prejudice to the
       Purchaser's right of seeking full indemnity from the Contractor as set
       out in Clause 11.2 above.

11.4   Notwithstanding Clause 16, the Contractor shall not be liable in respect
       of any patent infringement or copyright infringement, for incidental or
       consequential damages including but not limited to loss of profit or
       revenues, loss of use of products or any associated equipment, cost of
       capital, cost of substitute products, facilities or services or downtime
       services.


12.    TRAINING

12.1   The Contractor shall provide the training to the Purchaser's staff at the
       costs specified in Appendix B, if the Purchaser elects.


13.    OPTION

13.1   The Purchaser may at its absolute discretion any time on or before the
       date falling six months after the acceptance of the Second Delivery (or
       such later date as the parties shall agree) by notice in writing to the
       Contractor exercise the Option to acquire all or part of the Expansion
       System whereupon the Contractor shall be bound to supply and install the
       Expansion System in accordance with this Agreement.

13.2   Any Equipment, Software, Documentation, or Services ordered pursuant to
       this Clause shall be produced, delivered and provided in accordance with
       all the terms and conditions of this Agreement (and in particular but
       without limitation Appendix A) to the extent that they are reasonably
       capable of applying thereto.


14.    CONFIDENTIALITY

14.1   Each party shall, and shall procure their respective agents and employees
       to keep confidential all trade secrets, technical data or other
       information of a confidential nature belonging to or obtained from the
       other party until same shall have become generally known to persons
       engaged in similar business otherwise than through disclosures on the
       part of the parties or their respective agents or employees.

14.2   As a condition precedent to this Agreement, both parties shall enter into
       a Confidentiality Undertaking in the form attached hereto as Schedule 5,
       and the obligations, notices and covenants thereunder shall be cumulative
       and in addition to those set out in Clause 14.1.  In the event of
       inconsistency between the Confidentiality Undertaking and Clause 14.1,
       the Confidentiality Undertaking shall prevail.


15.    LOSS AND DAMAGE INDEMNITY

15.1   The Contractor shall be liable for, and shall indemnify the Purchaser
       against any expense, liability, loss or claim in respect of personal
       injury to, or death of any person

<PAGE>

       arising out of any negligent act or omission of the Contractor or of any
       person for whom the Contractor is responsible.

15.2   The Contractor shall be liable for and shall indemnify the Purchaser
       against any expense, liability, loss or claim in respect of loss or
       damage to any property insofar as loss or damage arises out of any
       negligent act or omission of the Contractor.

15.3   The indemnities contained in this Clause 15 shall include any Claims by
       the Purchaser for loss of prospective profits or incidental or
       consequential damages.


16.    INSURANCE

16.1   Without limiting the Contractor's obligations, responsibilities and
       liabilities under any other clause of this Agreement, the Contractor
       shall effect and maintain in force the insurance contained in this Clause
       16.

16.2   GENERAL INSURANCE OBLIGATIONS

       (a)    All insurance to be taken out by the Contractor shall be effected
              with insurers or, as the case may be, protection and indemnity
              associations, and in terms approved, in both cases, by the
              Purchaser (which approval shall not be unreasonably withheld) and
              for this purpose the Contractor shall submit to the Purchaser at
              least fourteen (14) days prior to the date for commencement of any
              works under this Agreement the identity of insurers or protection
              and indemnity associations and the terms of such insurances.
              Thereafter the Contractor shall whenever required produce to the
              Purchaser a certificate of insurance and proof of payment of the
              current premiums.  In addition to such certificate of insurance,
              the Contractor shall notify the Purchaser of all policy exclusions
              and conditions which could affect the rights of the Purchaser.
              Provided always that, subject to 16.2 (c), the approval of the
              Purchaser as aforesaid to all insurance which the Contractor is
              obliged to effect shall be a condition precedent to the Contractor
              being given possession of the Site under this Agreement, but shall
              not, for the avoidance of doubt, delay the date for commencement
              of the works pursuant to this Agreement.

       (b)    The Contractor shall bear the cost of all excesses, exclusions and
              limitations applying under all insurance policies, in so far as
              they concern risks for which he is responsible under the terms of
              this Agreement.  In the event of any claims under the insurances,
              any cost that may be incurred by the Purchaser in respect of the
              excesses shall be recoverable from the Contractor by the Purchaser
              as a debt or may be deducted by the Purchaser from any monies due
              or to become due to the Contractor under this Agreement.

       (c)    If the Contractor shall fail upon request to produce to the
              Purchaser satisfactory evidence that there is in force the
              insurance referred to in this Clause 16 or any other insurance
              which he may be required to effect the terms of this Agreement
              then and in any such case the Purchaser may, without prejudice to
              the Purchaser's right to reclaim from the Contractor any premiums
              paid by the Purchaser from the Contractor, give possession of Site

<PAGE>

              to the Contractor to commence works and effect and keep in force
              any such insurance and pay such premium or premiums as may be
              necessary for that purpose and from time to time deduct the amount
              so paid by the Purchaser as aforesaid from any monies due or which
              may become due to the Contractor or recover the same as a debt due
              from the Contractor.

       (d)    Without prejudice to the other provisions of this Clause 16, the
              Contractor shall ensure and shall cause any sub-contractor of any
              tier to ensure that the interest of the Purchaser is endorsed on
              any policy of insurance which provides cover in relation to any of
              the contractor's liabilities under this Agreement.

       (e)    The Contractor shall promptly supply to underwriters and/or
              insurers all documentation and information which they may
              reasonably require to effect and maintain the insurance referred
              to in this Clause 16.

       (f)    The Contractor shall at all times take all necessary precautions
              to prevent loss or damage to the Works or any part thereof and the
              Contractor shall not do anything or cause or permit any of its
              sub-contractors to do anything, whether on or off the Site, which
              would or might, render voidable any policy of insurance required
              by this Agreement.

16.3   Transport Insurance and CONTRACTOR'S EMPLOYEES' COMPENSATION INSURANCE

       (a)    Transport insurance and the Contractor's Employees' Compensation
              Insurance Policy (to the extent applicable to the Contractor's
              obligations under this Agreement) is to be taken out with an
              insurance company approved by the Purchaser.  The policy and
              premium receipt are to be deposited with the Purchaser prior to
              shipment and commencement of the works.

       (b)    The policy shall cover the period from (i) in the case of shipment
              of the Equipment, the date on which the Equipment is transported
              from the Contractor's warehouse in the United States to the date
              on which title to the Equipment is transferred to the Purchaser in
              accordance with this Agreement and (ii) in the case of Employee's
              Compensation Insurance, the date for commencement of the works
              until Service Acceptance in accordance with Clauses 5.4 (a), 5.4
              (b) or 5.8.

       (c)    The Employee's Compensation Insurance policy shall be issued on a
              'Joint Named' basis, i.e. in the name of the Contractor and of all
              Sub-contractors whilst engaged about the works and shall be
              endorsed to cover the Purchaser's liability to employees of the
              Contractor and all sub-contractors under applicable laws in Sri
              Lanka .

16.4   INSURANCE OF WORKS

       (a)    The Contractor shall insure and keep insured in the joint names of
              the Contractor, all sub-contractors, the Purchaser and any other
              parties with an insurable interest that the Purchaser may elect,
              any works together with

<PAGE>

              materials for incorporation therein to the full replacement cost
              plus an additional 10% to cover any additional costs that they may
              arise incidental to the rectification of any loss or damage
              including professional fees, cost of demolition and removal of
              debris.

       (b)    The insurance shall cover the Contractor, all sub-contractors, and
              the Purchaser and any other parties elected by the Purchaser as
              aforesaid against all loss or damage from whatsoever cause arising
              from the date for commencement of the works until the date of
              completion which shall take place upon Service Acceptance in
              accordance with Clauses 5.4 (a), 5.4 (b) or 5.8 (and thereafter in
              respect of risks arising as a result of performance of the
              Warranties, imposed at Clause 7).

16.5   THIRD PARTY INSURANCE

       (a)    The Contractor shall insure in the joint names of the Contractor,
              sub-contractors and the Purchaser against liabilities for death of
              or injury to any person (other than any operative or other person
              in the employment of the Contractor or any of his sub-contractors)
              or for loss of or damage to any property (other than the works)
              arising out of the execution of this Agreement from whatsoever
              cause.

       (b)    The insurance shall be taken out for at least the limit of
              US$7,000,000 in respect of any one occurrence during the period of
              insurance.  If the Contractor considers the above-mentioned limit
              of indemnity for any one accident to be inadequate to cover its
              contractual obligations he is at liberty to increase the limit of
              indemnity but any extra premium shall be at his own expense.

       (c)    The insurance policy shall include a cross liability clause such
              that the insurance shall apply to the Contractor and his
              Sub-contractors and to the Purchaser as separately insured
              parties.

       (d)    The insurance shall cover from the date for commencement of the
              works under this Agreement until Service Acceptance in accordance
              with Clauses 5.4 (a), 5.4 (b) or 5.8.  The policy and premium
              receipts are to be deposited with the Purchaser prior to
              commencement of the works.

       (e)    The policy shall provide that existing property of the Purchaser
              shall be treated as property of a third party for the purposes of
              the policy.


17.    KEY PERSONNEL AND PROGRESS REPORTS

17.1   The Key Person or individual who is necessary for the successful
       performance throughout the term of this Agreement shall be Mr. Arthur T.
       H. Yeung until otherwise notified in writing as set out in Clause 17.2
       below.

17.2   All key personnel designated by the Contractor shall be subject to
       approval by the Purchaser.  Key personnel approved by the Purchaser shall
       not be removed from the

<PAGE>

       performance of the Work unless replaced with personnel of substantially
       equal qualifications and abilities, who are approved by the Purchaser.
       Nothing in this Clause shall relieve the Contractor of any of its
       obligations or its responsibility for any acts or omissions of its key
       personnel under this Agreement.

17.3   The Contractor shall provide to the Purchaser written or verbal progress
       reports regarding the Contractor's activities and progress in connection
       with the Works, at such times as the Purchaser may reasonably require
       (not less than monthly) in such form and disclosing such information as
       the Purchaser may reasonably require.


18.    CHANGES

18.1   Either party may, at any time, by written change proposal, request
       changes to be made to the Specifications.  Upon such change proposal
       being made by either party, the Contractor shall provide the Purchaser
       with a proposed schedule of all alterations which would need to be made
       to the terms and conditions of this Agreement and, if applicable, the
       fixed prices, as a consequence of such proposed change.  The provisions
       of Clause 1.3(b) shall not be considered as a change to the
       Specifications for the purposes of this Clause 18.

18.2   If the parties agree on the implementation of the proposed change,
       including any adjustment to the terms and conditions of this Agreement or
       fixed prices to be made in respect thereof, the Contractor shall proceed
       therewith, as agreed.  If the change has been proposed by the Contractor
       but no such agreement is reached, the proposed change shall not be
       implemented.  If the change has been proposed by the Purchaser, but no
       such agreement is reached, the Contractor shall nonetheless proceed with
       the proposed change if the Contractor could reasonably be expected to
       implement the same, taking into account its abilities and the facilities
       available to it, and an equitable adjustment, if any, to the fixed price
       shall be made in accordance with paragraphs 18.3 and 18.4 hereof.

18.3   If any adjustment is to be made in the fixed prices pursuant to paragraph
       18.2 hereof, the Contractor shall submit to the Purchaser a statement of
       price adjustment, supported by evidence as appropriate, and including a
       detailed breakdown of any increases or decreases in the price of labour,
       materials or other items.  Such statement shall be calculated in
       accordance with the Contractor's regular accounting procedures and shall,
       if required by the Purchaser, be verified at the Purchaser's expense by
       the Contractor's independent auditors.  Any claim by the Contractor for
       an increase in fixed prices shall be deemed waived unless such statement
       is submitted within forty-five (45) days of the date of receipt by the
       Purchaser or the Contractor, as the case may be, of the change proposal
       referred to in paragraph 17.1 hereof.

18.4   If the parties fail to reach agreement on the adjustment of the fixed
       prices, the adjustment shall be determined in accordance with Clause 21
       hereof.  Nothing in this paragraph shall relieve the Contractor of its
       obligation to proceed promptly with the implementation of the directed
       change pursuant to paragraph 18 hereof or with the provision to the
       Purchaser of any Work under this Agreement, as changed.

<PAGE>

19.    ASSIGNMENT OR SUBCONTRACTING OF AGREEMENT

19.1   The Contractor shall not assign, subcontract or delegate, either in whole
       or in part, this Agreement or any of its rights, duties or obligations
       thereunder to any person or entity, use it as capital to establish a
       company, or set up an association with another company for its
       fulfillment, without prior express written approval of the Purchaser,
       which shall not be unreasonably withheld.

19.2   Notwithstanding any conditions under which the Purchaser may, at its sole
       discretion, grant such approval, the Contractor shall remain a guarantor
       to the Purchaser of the performance in accordance with this Agreement and
       all applicable laws, of the assigned, subcontracted or delegated duties
       and obligations.


20.    PUBLICITY RELATED TO AGREEMENT

20.1   The Contractor shall obtain the prior written approval of the Purchaser
       as to the issue, content and timing of news releases, articles,
       brochures, advertisements, prepared speeches or other information
       releases ("Releases") related to the Work or the terms of this Agreement
       (if any), to be issued by the Contractor, a subcontractor or any
       employee, designee, assignee or consultant of either.  Any such Release
       shall be submitted in draft form to the Purchaser for approval as
       aforesaid indicating the countries in which it will appear.  PROVIDED
       THAT the Purchaser's approval shall not be required in respect of any
       disclosures which the Contractor is required to make pursuant to any
       government regulation applicable to the Contractor (but the Contractor
       shall inform the Purchaser in writing of any such disclosure prior to, or
       (if that is not possible) as soon as practicable after such disclosure is
       made).


21.    EXPERT DECISIONS

21.1   This Clause 21 applies to matters which under this Agreement are
       expressly required to be dealt with by this Clause in the event that the
       Purchaser and the Contractor are unable to agree them (namely:- Clauses
       7, 8, 18, and 24).  Any such matter shall be determined by a person
       agreed by the parties or, in default of agreement, nominated at the
       request of either the Purchaser or the Contractor by Institute of
       Engineering in Hong Kong ("Expert") whose decision (acting as an expert
       and not as an arbitrator) shall be final and binding on the parties for
       the purpose of this Agreement .  The costs of the Expert shall be shared
       equally by the Purchaser and the Contractor.  the Purchaser and the
       Contractor shall provide the Expert with such information as the Expert
       may reasonably require.


22.    TIME-LIMITS

22.1   Any time-limit to which this Agreement obliges the Contractor or the
       Purchaser shall be counted from the day following that of the event
       marking the start of the time-limit and shall end on the last day of the
       period laid down.  When the last day of a time-limit is a Sunday or legal
       holiday in the country in which the particular contractual performance

<PAGE>

       is required, to which the time-limit shall apply, this time-limit shall
       be extended to the first working day following.


23.    FORCE MAJEURE

23.1   The term "Force Majeure" as used in this Clause means an event beyond the
       control and without the fault or negligence of the Purchaser, the
       Contractor, or its subcontractors or suppliers hereunder, including acts
       of God, acts of government, fire, flood or storm damage, strikes and
       national labour disputes, earthquakes, war and riot.

23.2   Neither party shall be responsible for delay in performing any obligation
       under this Agreement (other than an obligation as to payment of money)
       within the time-limit required for such performance, due to Force
       Majeure, provided that notice thereof is given to the other party within
       ten (10) days after such event has occurred.

23.3   Upon the occurrence of Force Majeure, and with proper notice as set forth
       above the time-limit for performance shall be extended accordingly,
       provided that the party wishing to rely upon the Force Majeure event
       makes every effort to minimize such delay.  If the delay continues beyond
       a reasonable period, taking into account the requirements of the
       Purchaser for the delayed Equipment or Services or prompt performance of
       any other obligation under this Agreement, the Purchaser may, upon notice
       of thirty (30) days to the Contractor terminate this Agreement in whole
       or in part, without incurring any financial obligations to the Contractor
       as a consequence of such termination.


24.    TERMINATION FOR DEFAULT

24.1   If the Contractor:

       (a)    refuses or fails to proceed with the performance of the Work, or
              any separable part thereof, with such diligence as will ensure its
              completion within the time specified in this Agreement or fails to
              complete the Work within such time and fails to remedy such
              failure or refusal within forty five (45) days of written notice
              from the Purchaser requiring the same; or

       (b)    commits any breach of this Agreement and fails to remedy such
              breach within fourteen (14) days of written notice from the
              Purchaser requiring the same;

       (c)    takes or has taken or instituted against it any action or
              proceeding whether voluntary or compulsory which has as an object
              or is likely to result in the winding up of the Contractor (other
              than a voluntary winding up by members for the purpose of
              reconstruction or amalgamation) or is placed under official
              management or enters into a compromise or other arrangement with
              its creditors or any class of them or if an administrative
              receiver or administrator or receiver or the like is appointed to
              carry on its business or to take control or possession of any of
              its assets for the benefit of its creditors or any of them;

<PAGE>

       (d)    violates any law relating to the prevention of corruption or
              bribery in any jurisdiction;

       the Purchaser may, by notice to the Contractor either:

              (i)    take all or part of the Work not yet performed by the
                     Contractor out of the Contractor's control or out of the
                     control of any other person in whose control or possession
                     such Work or any part thereof may be.  In such event the
                     Purchaser may take-over the Work in whole or in part, and
                     proceed with the same to completion.  The Contractor shall,
                     or shall procure that, forthwith on demand by the Purchaser
                     delivers to the Purchaser all Equipment and Software and
                     components thereof in any way commenced, partly executed or
                     completed under this Agreement and any other things which
                     in the opinion of the Purchaser are necessary for
                     completion of the Work or for the installation and
                     commissioning of the System by the Purchaser.  The
                     Contractor shall be credited for the value of such items as
                     agreed by the Purchaser and the Contractor or in default of
                     agreement as determined by Clause 21 subject always to any
                     liability the Contractor may have to compensate the
                     Purchaser for, or to make good at the Contractor's expense,
                     any breach of this Agreement and shall also procure from
                     any subcontractor, identical rights as are provided herein;
                     and

              (ii)   whether or not the rights under paragraph (i) are
                     exercised, terminate this Agreement, in whole or in part,
                     with immediate effect.

24.2   If the Purchaser so elects to complete all or part of the Works, the
       Contractor shall pay the Purchaser any reasonable costs occasioned by the
       Purchaser in completing the Work or such part of the Work to the extent
       such costs exceed the amount which would have been payable in respect of
       that part of the Work so taken over.

24.3   The rights of the Purchaser under this Clause are in addition to, and
       without prejudice to, or forfeiture of, any other rights or remedies that
       the Purchaser may have under this Agreement or at law as a consequence of
       any default by the Contractor under this Agreement.


25.    GOVERNMENTAL AUTHORIZATION AND COMPLIANCE

25.1   The Contractor warrants that each and every item of Equipment and
       Software and related equipment shall comply with the requirements of the
       Telecommunications Authority applicable in Sri Lanka.

25.2   The Purchaser shall be responsible for obtaining all necessary Sri Lanka
       or foreign government authorizations including but not limited to import
       licenses necessary for the importation, installation and operation of the
       System (subject to the Contractor's obligations under Clause 25.1).  The
       Contractor shall be responsible for obtaining all necessary export
       licenses.

<PAGE>

26.    LANGUAGE AND COMMUNICATION

26.1   The Agreement and all documentation and communications required
       thereunder shall be in the English language.

26.2   All communications pertinent to this Agreement shall be made or confirmed
       in writing, including telex, or facsimile.


27.    NOTICES AND REPORTS

27.1   Any notice or other communication required or permitted to be given by or
       pursuant to this Agreement shall be sufficiently given if given in
       writing and delivered personally or sent by prepaid registered post or
       telex or facsimile to the addresses for the parties specified in Clause
       28.3 or to such other address or such other person as the parties may
       from time to time notify to the other parties in writing.

27.2   Any such notice or other communication issued in accordance with Clause
       28.1 shall be deemed to have been received:

       (a)    if delivered personally, on the date of delivery;

       (b)    if sent by pre-paid post, five (5) days after the date of posting
              unless actually received earlier; or

       (c)    if sent by facsimile, upon confirmation of receipt given to the
              sender by the addressee; or

       (d)    if sent by telex, on receipt of the correct answerback code of the
              addressee at the end of the communication.

27.3   All notices and reports to be provided to the Purchaser or the Contractor
       pursuant to this Agreement shall be sent to the Purchaser or the
       Contractor as follows:

              Position:     Joint Managing Director

              Company:      Lanka Cellular Services (Pvt) Limited

              Address:      4th Floor1119 Maradana RoadColombo 8
                            Sri Lanka


              Position:     Managing Director

              Company:      interWAVE Communications International Ltd.

              Address:      18/F  133 Wanchai Road
                            Wanchai
                            Hong Kong

<PAGE>

       or such other address as may be notified to the other party in accordance
       with this Clause.

27.4   As soon as practicable after the date of this Agreement, the Contractor
       will appoint an agent for service of process in London, England and will
       notify the Purchaser in writing of the name and address of such agent any
       agents appointed in replacement of that agent.


28.    WAIVER AND APPROVALS

28.1   Any failure or delay on the part of the Purchaser in exercising any power
       or right under this Agreement shall not operate as a waiver of such power
       or right.

28.2   Any approvals or consents which may be given by the Purchaser shall not
       prejudice any claim or right of the Purchaser under this Agreement, nor
       constitute any acceptance by the Purchaser of any liability in relation
       to the subject matter of such approval or consent.


29.    ENTIRE AGREEMENT

29.1   This Agreement, the Letter of Intent and the letter agreement dated on or
       about the date of this Agreement confirming certain delivery arrangements
       in relation to the Equipment constitutes the entire Agreement and shall
       apply in connection with the subject matter hereof, and there are no
       other agreements or understandings, written or oral, except as provided
       herein.  Any amendments to or modification of this Agreement except in
       writing and signed by the authorized representatives of the parties
       hereto, shall be void and of no effect.


30.    NO JOINT VENTURE

30.1   Nothing in this Agreement shall be construed to create or evidence a
       partnership or joint venture relationship between the parties hereto.
       Neither party shall hold itself out contrary to the terms of this Clause
       and neither party shall become liable because of any representations, act
       or omissions of the other.  This Agreement is not for the benefit of any
       third party and shall not be deemed to create or evidence any right or
       remedy of any such third party, whether referred to herein or not.


31.    SEVERABILITY

31.1   The whole or any part of any clause in this Agreement that is illegal or
       unenforceable:

       (a)    will be:

              (i)    read down to the extent necessary so that it is legal and
                     enforceable; or

<PAGE>

              (ii)   severed (if it cannot be read down in accordance with
                     paragraph (i);

       (b)    will not affect the continued operation of the remaining
              provisions of this Agreement.


32.    HEADINGS

32.1   The headings to the Clauses of this Agreement are for convenience only
       and shall not be considered for any purpose in interpreting or construing
       this Agreement.


33.    EXPORT CONTROL

       Subject to Clause 35, all Equipment and Software exports will be made
       under the authorization and control of United States export laws and
       regulations adherence to which shall be the sole responsibility of the
       Contractor provided that the liability to The Purchaser under this Clause
       34 shall be limited to an amount equal to two times the total value of
       this Agreement as set out in Appendix B.


34.    RE-EXPORTATION

       The Purchaser shall not, without prior written consent of the Contractor
       and the Office of Export Administration, United States Department of
       Commerce and Department of State, Washington, D.C. 20230, U.S.A.
       knowingly re-export, export, or ship, or cause to be re-exported,
       exported, or shipped, directly or indirectly, any technical data or
       information obtained from the Contractor or from an associated company of
       the Contractor, or any direct or indirect product thereof, to any country
       to which, under the laws of the United States, the Contractor is or may
       be prohibited from exporting its technology or its direct product.  The
       provisions of this clause shall extend automatically to any other
       destination to which the U.S. Office of Export Administration at any time
       during the life of this Agreement restricts or prohibits the export of
       technical data or information or any direct or indirect product thereof.
       The Purchaser's request to the Contractor for direct or indirect
       re-exportation, exportation, or shipping of any technical data,
       information, products obtained from the Contractor or associates of the
       Contractor to any place outside of Sri Lanka shall be handled by the
       Contractor in a timely manner.  In any event, such request by The
       Purchaser shall not be unreasonably withheld by the Contractor.  The
       Purchaser shall also have the right to apply to U.S. Government directly
       for approval of such export.  The Contractor shall provide The Purchaser
       with reasonable assistance in any applications to or dealings with the
       Government of the United States made by The Purchaser.  In the event that
       the Contractor fails to respond to a re-exportation request made by The
       Purchaser within 60 days, the Contractor will be deemed to have consented
       to such re-exportation request.


35.    APPLICABLE LAW

<PAGE>

35.1   This Agreement shall be interpreted, construed and governed by the laws
       of England and the parties hereto submit to the non-exclusive
       jurisdiction of the English courts.

<PAGE>

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly
executed by their duly authorised officers as of     December 1999 and hereby
deem that this Agreement shall be effective from the Effective Date.


For the Contractor:                For the Purchaser:


INTERWAVE COMMUNICATIONS           LANKA CELLULAR SERVICES (PVT) LIMITED
INTERNATIONAL LTD.

By                                 By




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

NAME                                    NAME

- -----------------------------           ------------------------------
(PRINT IN BLOCK LETTERS)                (PRINT IN BLOCK LETTERS)

TITLE                                   TITLE

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

DATE                                    DATE

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

WITNESS                                 WITNESS

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

<PAGE>

                                   APPENDIX A



                           PROPOSED DELIVERY SCHEDULE

<PAGE>

                                   APPENDIX A
                                   ----------


                           PROPOSED DELIVERY SCHEDULE
                           --------------------------


<TABLE>
<CAPTION>

ACTIVITIES                                                       MILESTONE
<S>                                                              <C>
FIRST DELIVERY:

Phase I, Deliver first 3 clusters equipment to Sri Lanka         FEB 28,2000

Service Acceptance/proposed commercial launch                    JUN 1, 2000


SECOND DELIVERY:

Phase II, Deliver next 4 clusters equipment to Sri Lanka         APR 30, 2000

Service Acceptance/proposed commercial launch                    AUG 1, 2000
</TABLE>




REMARKS:

i.     The above schedule is the shipment schedule from Redwood City interWAVE.

ii.    The deployment schedule must be in agreement with the availability of
       customer facility such as E1, power sources.

<PAGE>

                                   APPENDIX B


                              PRICES AND QUANTITIES

<PAGE>


                                  APPENDIX B

                           PRICES AND QUANTITIES


<PAGE>

interWAVE Communications Confidential                               Page 1 of 2

APPENDIX B   SYSTEM QUOTATION FOR WIRELESS ACCESS PROJECT FOR HUTCHINSON
             TELECOMMUNICATIONS INTERNATIONAL LTD. IN SRI LANKA

<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
ITEM  PART NUMBER  DESCRIPTION                                         QTY.      LIST PRICE     SPECIAL DISCOUNT       AMOUNT TO
                                                                                  U/P (US$)         U/P (US$)         HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------

SUMMARY OF interWAVE WIRELESS ACCESS SYSTEM FOR HUTCHINSON TELECOMMUNICATIONS INTERNATIONAL LTD.-SRI LANKA PROJECT
<S>   <C>          <C>                                                 <C>       <C>            <C>                   <C>
A   1  PHASE 1 OF WIRELESS ACCESS PROJECT FOR CLUSTER 1-3                 1           -              3,004,459           3,004,459
       - Subtotal for ALL NSS/BSS Equipment for Cluster 1                                              935,900
       - Subtotal for ALL NSS/BSS Equipment for Cluster 2                                              691,400
       - Subtotal for ALL NSS/BSS Equipment for Cluster 3                                              911,100
       - Subtotal for OMC-R/S System                                                                   220,800
       Spare Parts for IWC Equipment for Cluster 1-3                                                   157,750
       Additional Cost for CIF Cost for Cluster 1-3 to Sri Lanka          1                             87,509

    2  ENGINEERING SERVICES AND TRAINING FOR PHASE 1 IMPLEMENTATION
       OF CLUSTER 1-3                                                     1           -                550,725             550,725
       Installation and Commissioning Services of Cluster 1-3                                           82,145
       In-country Customer Training                                                                     76,080
       Level 2 Off-site Support for Phase 1 Deployment in 12 Months                                    170,000
       On-site engineering consultant support for 12 months               1                            220,000
       Documentation for Rel 4.1 as Item IV.1                                                            2,500

- ----------------------------------------------------------------------------------------------------------------------------------
       Total (IWC System Solution, engineering Services, Training and
       Spare parts for Phase 1 Implementation)                                                                            3,555,184

B   1  PHASE 2 OF WIRELESS ACCESS PROJECT FOR CLUSTER 4-7                  1           -              3,008,195           3,008,195
       - Subtotal (All NSS/BSS Equipment for Cluster 4)                                                591,600
       - Subtotal (All NSS/BSS Equipment for Cluster 5)                                                811,300
       - Subtotal (All NSS/BSS Equipment for Cluster 6)                                                591,600
       - Subtotal (All NSS/BSS Equipment for Cluster 7)                                                554,100
       - Spare Parts for IWC Equipment for Cluster 4-7                                                 202,900
       Additional Cost for CIF Cost for Cluster 4-7 to Sri Lanka          1                             76,458
       Additional Cost for CIF Cost for Spare Parts (Cluster 4-7)
         to Sri Lanka                                                     1                              6,087
       - Subtotal for System Upgrade of iWC Equipment for Cluster 1-3
         to Rel 4.5                                                                                    174,150

- ----------------------------------------------------------------------------------------------------------------------------------
       SUBTOTAL (IWC SYSTEM HARDWARE & SOFTWARE FOR PHASE 2 DEPLOYMENT)                                                  3,008,195

    2  PHASE 2 ENGINEERING SERVICES AND SUPPORTS FOR CLUSTER 4-7          1           -                155,500             155,500

</TABLE>

                              24th November 1999
interWAVE Proprietary            HKHTL09NOV99           IN COMMERCIAL CONFIDENCE

<PAGE>

                                                                  Page 2 of 2

<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
ITEM      PART NUMBER  DESCRIPTION                                           QTY.  LIST PRICE  SPECIAL DISCOUNT     AMOUNT TO
                                                                                    U/P (US$)      U/P (US$)       HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>          <C>                                                   <C>   <C>         <C>                 <C>
          Level 2 Support for Phase 2 System for 6 Months                                              85,000
          On-site engineering consultant support for 3 months                      1                   68,000
          Documentation for Rel 4.5                                                                     2,500
===================================================================================================================================
          SUBTOTAL (ENGINEERING SERVICES AND SUPPORTS FOR PHASE 2 DEPLOYMENT)                                             155,500


===================================================================================================================================
          TOTAL (IWC SYSTEM SOLUTION FOR PHASE 2 IMPLEMENTATION)                                                        3,163,695
- -----------------------------------------------------------------------------------------------------------------------------------
        GRAND TOTAL (PHASE 1 AND PHASE 2 IMPLEMENTATION OF IWC WIRELESS ACCESS SOLUTION IN SRI LANKA)                   6,718,879
- -----------------------------------------------------------------------------------------------------------------------------------
 C      OPTIONAL PRE-PAID SYSTEM & ECHO CANCELLOR UNITS

        1 SUB-TOTAL (Pre-Paid System)                                          1                      933,010             933,010
        2 SUB-TOTAL (Integrated Echo Cancellor Units for Cluster 1-3)          1                       22,500              22,500
        3 SUB-TOTAL (Integrated Echo Cancellor Units for Cluster 4-7)          1                       30,000              30,000
        4 CIF Cost for Optional Items                                          1                       29,565              29,565

===================================================================================================================================
        SUBTOTAL (PRE-PAID & INTERNAL ECHO CANCELLOR UNITS IN CIF TERMS)                                                1,015,075
</TABLE>


<PAGE>

[Logo]
                                                                    Page 1 of 9

APPENDIX B.1       SYSTEM QUOTATION FOR WIRELESS ACCESS PROJECT FOR
                   HUTCHISON TELECOMMUNICATIONS INTERNATIONAL LTD.
                   IN SRI LANKA

<TABLE>
<CAPTION>

- -----------------------------------------------------------------------------------------------------------------------------------
ITEM    PART NUMBER  DESCRIPTION                                                QTY.    LIST PRICE   SPECIAL DISCOUNT    AMOUNT TO
                                                                                         U/P(US$)        U/P(US$)       HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>     <C>          <C>                                                        <C>     <C>          <C>                <C>

 I   SYSTEM EQUIPMENT FOR CLUSTER 1 IN GREATER COLUMBO AREA

 A  1              WAVEXpress 8W/1TRX TURBOWAVE FOR 7 X 1+1+1 CONFIGURATION     21         50,200            25,100        527,100
   1.1    M5120A   - 1 no. of WAVEXpress 9 slots chassis with cover and fan
                     cooling                                                    21         30,200
                   - 1 no. of interWAVE processor (IWP) module
                   - 1 nos. of E1 trunk module (2-E1-port each)
                   - 1 no. GSM 900 full band TRX module
                   - 1 no. clock module
                   - 1 no. power supply
   1.2    M640157  Turbo Option, 8Watt (900 MHz)                                21         20,000

 B  1              WAVEXpress 8W/2TRX TURBOWAVE FOR 1 X 2+2+2 CONFIGURATION      3         65,200            32,600         97,800
   1.1    M5220A   - 1 no. of WAVEXpress 9 slots chassis with cover and fan
                     cooling                                                     3         45,200
                   - 1 no. of interWAVE processor (IWP) module
                   - 1 nos. of E1 trunk module (2 E1-port each)
                   - 2 no. GSM 900 full band TRX module
                   - 1 no. clock module
                   - 1 no. power supply
   1.2    M640157  Turbo Option, 8Watt (900 MHz)                                 3         20,000

 C  1              WAVEXpress BSC (7E1) CONFIGURATION                            1        115,200            57,600         57,600
   1.1     M5030   - 1 no. of WAVEXpress 9 slots chassis with cover and fan
                     cooling                                                     1         43,600
                   - 1 no. of interWAVE processor (IWP) module
                   - 1 nos. of E1 trunk module (2 E1-port each) for Abis interface
                   - 1 nos. of E1 trunk module (2 E1-port each) for A interface
                   - 1 no. clock module
                   - 1 no. power supply

   1.2    M640183  Additional E1 trunk module (2 E1-port each) 75 ohm w/4 DSPs
                   for Abis interface                                            4         15,000
   1.3    M340127  Additional E1 trunk module (2 E1-port each) 75 ohm w no DSPs
                   for A interface                                               1          7,000
   1.4    M640028  Additional power supply for BSC                               1          4,600

 D  1              WAVEXpress BSC (5E1) CONFIGURATION                            1         85,200            42,600         42,600
   1.1     M5030   - 1 no. of WAVEXpress 9 slots chassis with cover and fan
                     cooling                                                     1         43,600
</TABLE>

interWAVE PROPRIETARY            24th November 1999   IN COMMERCIAL CONFIDENCE
                                 HKHTL09NOV99
<PAGE>
                                                                   Page 2 of 9
<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                             SPECIAL
ITEM      PART NUMBER  DESCRIPTION                                                       QTY.    LIST PRICE DISCOUNT   AMOUNT TO
                                                                                                 U/P (US$)  U/P (US$)  HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>          <C>                                                               <C>     <C>        <C>        <C>
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each) for Abis interface
                       - 1 nos. of E1 trunk module (2 E1-port each) for A interface
                       - 1 no. clock module
                       - 1 no. power supply
  1.2     M640183      Additional E1 trunk module (2 E1-port each) 75 ohm w/4 DSPs for
                         Abis interface                                                    2      15,000
  1.3     M340127      Additional E1 trunk module (2 E1-port each) 75 ohm w no DSPs for
                         A interface                                                       1       7,000
  1.4     M640028      Additional redundant power supply for BSC                           1       4,600

E  1                   WAVEXchange WXC (6E1) CONFIGURATION                                 1     107,600       53,800     53,800
  1.1     M5060        - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling    1      71,000
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each) for A interface
                       - 1 nos. of E1 trunk module (2 E1-port each) for PTSN interface
                       - 1 no. clock module
                       - 1 no. power supply
  1.2     M640181      Additional E1 trunk module (2 E1-port each) 75 ohm w/2 DSPs for
                         PSTN interface                                                    1      11,000
  1.3     M340127      Additional E1 trunk module (2 E1-port each) 75 ohm w no DSPs for
                         A interface                                                       3       7,000
  1.4     M640028      Additional redundant power supply for WAVEXchange                   1       4,600

F  1      S700031      NETWORK ELEMENT FOR ALL 27 TRXS UNDER THE CLUSTER                  27      10,000        5,000    135,000

G  1      OPENRACK     Open Frame Equipment Rack for Each BTS Site                         8       4,000        2,000     16,000

H  1      CABINET      Equipment Cabinet for BSC & MSC                                     2       6,000        3,000      6,000
- ----------------------------------------------------------------------------------------------------------------------------------
          SUB-TOTAL (ALL NSS/BSS Equipment for Cluster 1)                                                                935,900
</TABLE>

<PAGE>
                                                                    Page 3 of 9

<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                             SPECIAL
ITEM      PART NUMBER  DESCRIPTION                                                       QTY.    LIST PRICE DISCOUNT   AMOUNT TO
                                                                                                 U/P (US$)  U/P (US$)  HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>          <C>                                                               <C>     <C>        <C>        <C>

II        System Equipment for Cluster 2 in Greater Columbo Area

A  1                   WAVEXpress 8W/1TRX TURBOWAVE FOR 2 X 1+1+1 CONFIGURATION            6      50,200       25,100    150,600
  1.1     M5120A       - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling    6      30,200
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each)
                       - 1 no. GSM 900 full band TRX module
                       - 1 no. clock module
                       - 1 no. power supply
   1.2    M640157      Turbo Option, 8 Watt (900 MHz)                                       6     20,000

B  1                   WAVEXpress 8W/2TRX TURBOWAVE FOR 3 X 2+2+2 CONFIGURATION            9      65,200       32,600    293,400
  1.1     M5220A       - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling    9      45,200
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each)
                       - 2 no. GSM 900 full band TRX module
                       - 1 no. clock module
                       - 1 no. power supply
   1.2    M640157      Turbo Option, 8 Watt (900 MHz)                                       9     20,000

C  1                   WAVEXpress BSC (8E1) CONFIGURATION                                  1     122,200       61,100     61,100
  1.1     M5030        - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling    1      43,600
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each) for Abis interface
                       - 1 nos. of E1 trunk module (2 E1-port each) for A interface
                       - 1 no. clock module
                       - 1 no. power supply
   1.2    M640183      Additional E1 trunk module (2 E1-port each) 75 ohm w/4 DSPs for
                         Abis interface                                                    4      15,500
   1.3    M340127      Additional E1 trunk module (2 E1-port each) 75 ohm w no DSPs for
                         A interface                                                       2       7,000
   1.4    M640028      Additional redundant power supply for BSC                           1       4,600

D  1                   WAVEXchange WXC (5E1) CONFIGURATION                                 1     100,600       50,300     50,300
  1.1     M5060        - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling    1      71,000
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each) for A interface
                       - 1 nos. of E1 trunk module (2 E1-port each) for PSTN interface
                       - 1 no. clock module

</TABLE>

<PAGE>

<TABLE>
<CAPTION>
interWAVE Communications Confidential                                                                                  Page 4 of 9



- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                          LIST PRICE  SPECIAL DISCOUNT   AMOUNT TO
ITEM      PART NUMBER  DESCRIPTION                                                   QTY.  U/P (US$)     U/P (US$)      HUTCH (US$)
- -----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>          <C>                                                           <C>     <C>        <C>        <C>

                       -1 no. power supply
   1.2    M640181      Additional E1 trunk module (2 E1-port each) 75 ohm w/2         1       11,000
                       DSPs for PSTN interface
   1.3    M340127      Additional E1 trunk module (2 E1-port each) 75 ohm w
                       no DSPs for A interface                                        2        7,000
   1.4    M640028      Additional redundant power supply for WAVEXchange              1        4,600

E   1                  NETWORK ELEMENT FOR ALL 24 TRXS UNDER THE CLUSTER             24       10,000              5,000     120,000

F   1     OPENRACK     OPEN FRAME EQUIPMENT RACK FOR EACH BTS SITE                    5        4,000              2,000      10,000

G   1     CABINET      EQUIPMENT CABINET FOR BSC & MSC                                2        6,000              3,000       6,000

- -----------------------------------------------------------------------------------------------------------------------------------
          SUB-TOTAL (ALL NSS/BSS EQUIPMENT FOR CLUSTER 2)                                                                   691,400
</TABLE>


<PAGE>
<TABLE>
<CAPTION>
interWAVE COMMUNICATIONS CONFIDENTIAL                                                                                  Page 5 of 9


- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                            LIST PRICE SPECIAL DISCOUNT  AMOUNT TO
ITEM      PART NUMBER  DESCRIPTION                                                     QTY.  U/P (US$)     U/P (US$)    HUTCH (US$)
- -----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>          <C>                                                               <C>     <C>          <C>        <C>

III       SYSTEM EQUIPMENT FOR CLUSTER 3 IN GREATER COLUMBO AREA

A          1               WAVEXpress 8W/1TRX TurboWAVE FOR 4 X 1+1+1 CONFIGURATION       12      50,200        25,100     301,200
          1.1   M5120A     - 1 no. of WAVEXpress 9 slots chassis with cover
                             and fan cooling                                              12      30,200
                           - 1 no. of interWAVE processor (IWP) module
                           - 1 nos. of E1 trunk module (2 E1-port each)
                           - 1 no. GSM 900 full band TRX module
                           - 1 no. clock module
                           - 1 no. power supply
          1.2   M640157    Turbo Option, 8 Watt (900 MHz)                                 12      20,000

B          1               WAVEXpress 8W/2RX TurboWAVE FOR 3 X 2+2+2 Configuration         9      65,200        32,600     293,400
          1.1   M5220A     - 1 no. of WAVEXpress 9 slots chassis with cover
                             and fan cooling                                               9      45,200
                           - 1 no. of interWAVE processor (IWP) module
                           - 1 nos. of E1 trunk module (2 E1-port each)
                           - 2 no. GSM 900 full band TRX module
                           - 1 no. clock module
                           - 1 no. power supply
          1.2   M640157    Turbo Option, 8 Watt (900 MHz)                                  9      20,000

C          1               WAVEXpress BSC (8E1) CONFIGURATION                              1     122,200        61,100      61,100
          1.1   M5030      - 1 no. of WAVEXpress 9 slots chassis with cover and fan
                             cooling                                                       1      43,600
                           - 1 no. of interWAVE processor (IWP) module
                           - 1 nos. of E1 trunk module (2 E1-port each)
                             for Abis interface
                           - 1 nos. of E1 trunk module (2 E1-port each)
                             for A interface
                           - 1 no. clock module
                           - 1 no. power supply
          1.2   M640183    Additional E1 trunk module (2 E1-port each) 75 ohm
                           w/4 DSPs for Abis interface
          1.3   M340127    Additional E1 trunk module (2 E1-port each) 75 ohm
                           w no DSPs for A interface
          1.4   M640028    Additional redundant power supply for BSC

D          1               WAVEXpress BSC (3E1) CONFIGURATION                              1       63,200      31,600      31,600
          1.1   M5030      - 1 no. of WAVEXpress 9 slots chassis with cover and fan
                             cooling                                                       1       43,600
                           - 1 no. of interWAVE processor (IWP) module
                           - 1 nos. of E1 trunk module (2 E1-port each)
                             for Abis interface
                           - 1 nos. of E1 trunk module (2 E1-port each)
                             for A interface
</TABLE>


<PAGE>

                                                                    Page 6 of 9

<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            SPECIAL
                                                                                                 LIST PRICE DISCOUNT    AMOUNT TO
ITEM     PART NUMBER   DESCRIPTION                                                       QTY.    U/P (US$)  U/P (US$)  HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>   <C>              <C>                                                               <C>     <C>        <C>        <C>
                       - 1 no. clock module
                       - 1 no. power supply (-48VDC)
      1.2   M640183    Additional E1 trunk module (2 E1-port each) 75 ohm w / 4 DSPs
                            for Abis interface                                             1       15,000
      1.3   M340127    Additional E1 trunk module (2 E1-port each) 75 ohm w no DSPs
                            for A interface                                                0        7,000
      1.4   M640028    Additional redundant power supply for BSC                           1        4,600


E      1               WAVEXchange WXC (6E1) CONFIGURATION                                 1      107,600      53,800     53,800
      1.1   M5060      - 1 no. of WAVEXpress 9 slots chassis with
                            cover and fan cooling                                          1       71,000
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each) for
                            A interface
                       - 1 nos. of E1 trunk module (2 E1-port each) for
                            PSTN interface
                       - 1 no. clock module
                       - 1 no. power supply
      1.2   M640181    Additional E1 trunk module (2 E1-port each) 75 ohm w / 2 DSPs
                            for PSTN interface                                             1       11,000
      1.3   M340127    Additional E1 trunk module (2 E1-port each) 75 ohm w no DSPs
                            for A interface                                                3        7,000
      1.4   M640028    Additional redundant power supply for WAVEXchange                   1        4,600

F      1    S700031    NETWORK ELEMENT FOR ALL 30 TRXS UNDER THE CLUSTER                  30       10,000       5,000    150,000

G      1    OPENRACK   OPEN FRAME EQUIPMENT RACK FOR EACH BTS SITE                         7        4,000       2,000     14,000

H      1    CABINET    EQUIPMENT CABINET FOR BSC & MSC                                     2        6,000       3,000      6,000

- ----------------------------------------------------------------------------------------------------------------------------------
         SUB-TOTAL (ALL NSS/BSS EQUIPMENT FOR CLUSTER 3)                                                                 911,100
</TABLE>

<PAGE>

                                                                    Page 7 of 9

<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            SPECIAL
                                                                                                 LIST PRICE DISCOUNT    AMOUNT TO
ITEM     PART NUMBER   DESCRIPTION                                                       QTY.    U/P (US$)  U/P (US$)  HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>   <C>              <C>                                                               <C>     <C>        <C>        <C>

IV  SYSTEM EQUIPMENT FOR OMC SYSTEM

A    1                  QMC SYSTEM IN WALPOLA                                             1        368,800   220,800     220,800
    1.1    M640191      - 1 no. of SUN Ultra-10S Server                                   1         45,000    22,500
    1.2    M640257      OMC-R/S GSM Network Software Suite for item A.1.1 Server -
                             Non-Encrypted (A5/0)                                         1        113,000    56,500
                        - License for Oracle 7.3.3
                        - Solaris 2.5.1 Media Kit
                        - Solaris Y2K patches / SunScan 2000 tool
                        - WAVEView OMC R/S Server /Client Application
                        - BSS (R4.1)Server Application (Non-Encrypted)
                        - WXC Server Application
    1.3    M640168      - 1 no. of SUN Ultra-5S client                                    2         25,000    12,500
    1.4    S700061      OMC software for item A.1.2 - client                              2         14,000     7,000
    1.5                 - 1 no. of TADPOLE                                                1         60,000    30,000
    1.6                 - 1 no. of CISCO 3640 Router (8E1+1Ethernet)                      1         32,800    32,800
    1.7                 - 1 no. of Protocol Converter & Trunker Router with Enclosure
                              for 7E1 in and 14E1 ou                                      1         40,000    40,000
- ----------------------------------------------------------------------------------------------------------------------------------
        SUB-TOTAL (OMC-R/S SYSTEM)                                                                                         220,800


 V  QUOTATION SUMMARY FOR EQUIPMENT FOR CLUSTER 1-3, INTERWAVE SYSTEM

        SYSTEM QUOTATION SUMMARY FOR CLUSTER 1-3, OMC, PRE-PAID, CONVERTER

      1                 - Subtotal for All NSS/BSS Equipment for Cluster 1                1                                935,900
      2                 - Subtotal for All NSS/BSS Equipment for Cluster 2                1                                691,400
      3                 - Subtotal for All NSS/BSS Equipment for Cluster 3                1                                911,100
      4                 - Subtotal for OMC-R/S/System                                     1                                220,800

- -----------------------------------------------------------------------------------------------------------------------------------
        TOTAL (IWC SYSTEM FOR CLUSTER 1-3 AND OMC SYSTEM)                                                                2,759,200

</TABLE>
<PAGE>

                                                                   Page 8 of 9

<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
ITEM      PART NUMBER  DESCRIPTION                                                 QTY.   LIST PRICE  SPECIAL DISCOUNT  AMOUNT TO
                                                                                           U/P (US$)      U/P (US$)    HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>          <C>                                                         <C>    <C>         <C>              <C>

 VI   OPTION FOR CIF TERMS

       1  ADDITIONAL COST FOR CIF COST FOR PHASE 1 EQUIPMENT TO SRI LANKA           1                       82,776         82,776

===================================================================================================================================
          SUB-TOTAL (CIF COST FOR PHASE 1 EQUIPMENT)                                                                       82,776


 VII  OPTIONAL ITEMS FOR ECHO CANCELLOR & PRE-PAID SYSTEM

  A   Integrated Echo Cancellors for Clusters 1 - 3                                 0                         -              -

       1               OPTION FOR INTEGRATED ECHO CANCELLORS FOR CLUSTER 1 - 3      9                        2,500         22,500
      1.1              - 1 no. of Echo Cancellor, supplied as integrated echo
                       cancellor per E1 module for 2 E1 port*                       9          5,000         2,500

       2  CIF COST TO SRI LANKA FOR INTEGRATED ECHO CANCELLORS OPTIONS FOR PHASE 1  1                          675            675

===================================================================================================================================
          SUB-TOTAL (ECHO CANCELLORS)                                                                                      23,175
</TABLE>


<PAGE>

                                                                     Page 9 of 9
<TABLE>
<CAPTION>

- -----------------------------------------------------------------------------------------------------------------------------------
ITEM    PART NUMBER   DESCRIPTION                                        QTY.    LIST PRICE    SPECIAL DISCOUNT     AMOUNT TO
                                                                                  U/P(US$)          U/P(US$)        HUTCH (US$)
- -----------------------------------------------------------------------------------------------------------------------------------
<S>     <C>           <C>                                                <C>     <C>           <C>                  <C>

 B   PRE-PAID SYSTEM FOR CLUSTER 1 - 7

     1                PRE-PAID SYSTEM IN WALPOLA                           1          874,000         874,000          874,000
    1.1               Pre-Paid System in WALPOLA, 36E1 Pre-Paid system
                      including                                            1          874,000         874,000
                      - Protocol Converter/Demultiplexer
                      - 9 x 120 Port E1 VIP VRU's
                      - Level 2 Host Server (high level redundancy
                      configuration available upon request)
                      - With mirrored drives and dual power supplies
                      - ECS Host Server software
                      - 1 x Client Administration Station
                      - All accompanying Cabinetry and Peripherals
                      - English Language IVR prompts and responses

     2                PRE-PAID SYSTEM OPTIONS                              1           59,010          59,010           59,010
    2.1               - Additional Language                                1            2,500           2,500
    2.2               - Network monitoring station (H/W+S/W)               1           40,510          40,510
    2.3               - Customer care work station (H/W+S/W)               1           16,000          16,000

     3 CIF COST TO SRI LANKA FOR PRE-PAID SYSTEM + PRE-PAID SYSTEM OPTIONS 1                           27,990           27,990

===================================================================================================================================
       SUB-TOTAL (PRE-PAID SYSTEM)                                                                                     961,000
</TABLE>


*Note:  1. Should the integrated echo cancellor is not available in time, then
           external echo cancellor will be supplied with the cost absorbed by
           the above charge
        2. The Pre-Paid prices in above does not include battery back-up or
           installation services




<PAGE>

[LOGO]
                                                                    Page 1 of 4



APPENDIX B.2     SERVICE SUPPORT AND TRAINING PRICE FOR WIRELESS ACCESS PROJECT
                 FOR HUTCHISON TELECOMMUNICATIONS INTERNATIONAL LTD. --
                 INITIAL PHASE


<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
ITEM    PART NUMBER    DESCRIPTION                                                   QTY. List Price  Special Discount   Amount to
                                                                                           U/P (US$)      U/P (US$)     HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------

I    SOFTWARE INSTALLATION AND COMMISSIONING ENGINEERING SERVICE FOR CLUSTER 1-3
<S>  <C>               <C>                                                           <C>   <C>         <C>              <C>
A     1     SVCINST   SOFTWARE INSTALLATION AND COMMISSIONING FOR CLUSTER 1          1                      44,091        44,091
     1.1              BTS TurboWAVE 1TRX/8W (1+1+1)                                  7        4,290          2,145
     1.2              BTS TurboWAVE 2TRX/8W (2+2+2)                                  1        4,720          2,360
     1.3              WAVEXpress/BSC                                                 2        2,616          1,308
     1.4              OMC                                                            1       41,100         20,550
     1.5              WAVEXchange MSC                                                1        7,100          3,550

B     1     SVCINST   SOFTWARE INSTALLATION AND COMMISSIONING FOR CLUSTER 2          1                      16,228        16,228
     1.1              BTS TurboWAVE 1TRX/8W (1+1+1)                                  2        4,290          2,145
     1.2              BTS TurboWAVE 2TRX/8W (2+2+2)                                  3        4,720          2,360
     1.3              WAVEXpress/BSC                                                 1        2,616          1,308
     1.4              WAVEXchange MSC                                                1        7,100          3,550

C     1     SVCINST   SOFTWARE INSTALLATION AND COMMISSIONING FOR CLUSTER 3          1                      21,826        21,826
     1.1              BTS TurboWAVE 1TRX/8W (1+1+1)                                  4        4,290          2,145
     1.2              BTS TurboWAVE 2TRX/8W (2+2+2)                                  3        4,720          2,360
     1.3              WAVEXpress/BSC                                                 2        2,616          1,308
     1.4              WAVEXchange MSC                                                1        7,100          3,550

==================================================================================================================================
              Subtotal (Software Installation & Integration Services For Phase 1 Deployment)                              82,145
</TABLE>

interWAVE PROPRIETARY            24th November 1999           IN COMMERCIAL
                                 HKHTL09NOV99                   CONFIDENCE
<PAGE>


                                                                    Page 2 of 4



<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
ITEM    PART NUMBER    DESCRIPTION                                                   QTY. LIST PRICE  SPECIAL DISCOUNT   AMOUNT TO
                                                                                           U/P (US$)      U/P (US$)     HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------

II   CUSTOMER TECHNICAL TRAINING
<S>  <C>               <C>                                                           <C>   <C>         <C>              <C>
D       IN-COUNTRY CUSTOMER TECHNICAL TRAINING HELD IN LANKA CELL, COLOMBO, SRI LANKA

      1                GSM SYSTEM TRAINING
     1.1    T100       GSM Overview                                                   6                      1,000         6,000

      2                OMC-R/S SYSTEM TRAINING
     2.1    T300       OMC System Administration                                      6                      1,500         9,000
     2.2    T800       OMC GSM Network Operations                                     6                      2,500        15,000

      3                BASE STATION SUBSYSTEM TRAINING
     3.1    T500       BSS Operations & Maintenance                                   6                      1,500         9,000
     3.2    T600       BSS Installation & Commissioning                               6                        500         3,000

      4                NSS SUBSYSTEM TRAINING
     4.1    T900       WXC Switch Operations & Maintenance                            6                      2,500        15,000

      5                ADDITIONAL AMOUNT (4 WEEKS, 2 INTERWAVE INSTRUCTORS) FOR
                       IN-COUNTRY TRAINING FOR ITEM D.1,D,2,D.3, & D.4
     5.1               Transportation, Lodging, Air-ticket, Meal and Daily
                       Expenses Allowance for Instructors                             1                     19,080        19,080

==================================================================================================================================
            SUBTOTAL (IN-COUNTRY CUSTOMER TECHNICAL TRAINING)                                                             76,080
</TABLE>

Note:  1  The above prices include the course fee, training manual and
          training facilities but excludes travel, lodging, meal, insurance
          and allowance for the trainees.
       2  The training quoted above is scheduled to be held in our Regional
          Headquarters of interWAVE Communications International Ltd. in Hong
          Kong at 22/F 133 Wanchai Road, Wanchai, Hong Kong.
       3  Minimum number of student per class is 6.
       4  Details of training curriculum and training catalog are enclosed in
          Section 9 of this Agreement.
       5  In-country Training requires the customer to provide training room,
          training facilities and training equipment as recommended by the
          instructors of interWAVE


<PAGE>


                                                                    Page 3 of 4




<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
ITEM  PART NUMBER    DESCRIPTION                                                   QTY. LIST PRICE  SPECIAL DISCOUNT   AMOUNT TO
                                                                                           U/P (US$)      U/P (US$)     HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>   <C>            <C>                                                           <C>   <C>         <C>              <C>

III   OFF-SITE AND ON-SITE RESIDENT ENGINEERING SERVICES SUPPORT

E     1              LEVEL 2 SUPPORT WITH 7 x 24 HOURS OFF-SITE SUPPORT FOR
                     PHASE 1 IN 12 MONTHS, INCLUD                                   1                                     170,000
                     - telephone technical consultancy during normal office hour
                     - emergency off site support to provide system outage
                       restoration
                     - bug simulation in interWAVE Regional TAC centre and
                       follow up
                     - bug solution deployment technical advice and providing
                       downloading of patches
                     - review regularly with customer by way of TR: trouble-
                       reports

      2              LEVEL 2 SUPPORT WITH 7 x 24 HOURS OFF-SITE SUPPORT FOR
                     PHASE 2 IN 6 MONTHS                                            1                                      85,000

- ----------------------------------------------------------------------------------------------------------------------------------
          SUBTOTAL (LEVEL 2 ENGINEERING SUPPORT)                                                                          255,000


F     1              ON-SITE ENGINEERING CONSULTANT SUPPORT FOR 12 MONTHS
                     (1 ENGINEER)                                                   1                                     220,000

      2              ON-SITE ENGINEERING CONSULTANT SUPPORT FOR 3 MONTHS
                     (1 ENGINEER)                                                   1                                      68,000

- ----------------------------------------------------------------------------------------------------------------------------------
          SUBTOTAL (ON-SITE ENGINEERING SUPPORT)                                                                          288,000

</TABLE>



<PAGE>


                                                                    Page 4 of 4


<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
ITEM  PART NUMBER    DESCRIPTION                                                   QTY. LIST PRICE  SPECIAL DISCOUNT   AMOUNT TO
                                                                                           U/P (US$)      U/P (US$)     HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>   <C>            <C>                                                           <C>   <C>         <C>              <C>

IV    DOCUMENTATION

G     1  D640250CD   DOCUMENTATION FOR REL 4.1, INCLUDING THE FOLLOWING MANUAL,     4        1,250             625          2,500
                     - Product Guides: WAVEXpress/BTS, WAVEXpress/BSC,
                       WAVEXchange
                     - Installation and Commissioning Guides: WAVEXpress/BTS,
                       WAVEXpress/BSC, WAVEView/OMC-R Set Up & System
                       Administration Guide
                     - WAVEView/OMC-R Operations and Maintenance Guide
                     - interWAVE Craft PC Guide
                     - interWAVE Parameter Dictionary
                     - interWAVE Field Maintenance Guide
                     - interWAVE Network Implementation Manual
                     - interWAVE Glossary of Terms

      2  D640250CD   DOCUMENTATION FOR REL 4.5 FOR MANUALS IN ITEM IV.1,            4        1,250             625         2,500

- ----------------------------------------------------------------------------------------------------------------------------------
           SUBTOTAL (DOCUMENTATION)                                                                                        5,000


V     QUOTATION SUMMARY FOR ENGINEERING SERVICES, TECHNICAL SUPPORT AND CUSTOMER TRAINING

H          FOR ENGINEERING SERVICE, ENGINEERING SUPPORT AND CUSTOMER TRAINING
           FOR PHASE 1 DEPLOYMENT

      1              Installation and Commissioning Services of Cluster 1 - 3       1                       82,145        82,145
      2              In-country Customer Training                                   1                       76,080        76,080
      3              Level 2 Off-site Support for Phase 1 Deployment in 12
                     Months                                                         1                      170,000       170,000
      4              On-site Resident Engineering Support for 12 Months             1                      220,000       220,000
      5              Documentation for Rel 4.1 as Item IV.1                         1                        2,500         2,500

- ----------------------------------------------------------------------------------------------------------------------------------
          TOTAL (SERVICE SUPPORT & TRAINING FOR PHASE 1 DEPLOYMENT OF CLUSTER 1 - 3)                                     550,725

I         FOR ENGINEERING SERVICES AND SUPPORT FOR PHASE 2 DEPLOYMENT

      1              Level 2 Off-site Support for Phase 2 Deployment in
                     6 months                                                       1                      85,000         85,000
      2              On-site Resident Engineering Support for 3 months              1                      68,000         68,000
      3              Documentation for Rel 4.5 as Item IV.2                         1                       2,500          2,500

- ----------------------------------------------------------------------------------------------------------------------------------
          TOTAL (SERVICE SUPPORT FOR PHASE 2 DEPLOYMENT OF CLUSTER 4 - 7)                                                155,500

</TABLE>


<PAGE>
<TABLE>
<CAPTION>

                                                                                                                       Page 1 of 2

APPENDIX B.3       RECOMMENDED SPARE PARTS AND PRICE FOR
                   HUTCHISON TELECOMMUNICATIONS INTERNATIONAL LTD. - INITIAL PHASE
- ----------------------------------------------------------------------------------------------------------------------------------
ITEM      PART NUMBER  DESCRIPTION                                                QTY.   LIST PRICE  SPECIAL DISCOUNT   AMOUNT TO
                                                                                          U/P (US$)      U/P (US$)      HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>          <C>                                                       <C>     <C>         <C>               <C>

I   RECOMMENDED SPARE PARTS AND PRICE FOR CLUSTER 1-3

A     1                  RECOMMENDED SPARE PARTS FOR CLUSTER 1-3                   1                    157,750          157,750
     1.1    M340123      IWP Module with 16MB RAM, MMU                             3       6,500          3,250
     1.2    M340137      IWP Module with 64MB RAM, MMU HD                          3       8,400          4,200
     1.3    M340129      E1 Module, 75 Ohm, BTS Only                               3       6,500          3,250
     1.4    M340181      E1 Module, 75 Ohm with 2 DSPs                             2      11,000          3,500
     1.5    M640183      E1 Module, 75 Ohm with 4 TRAU DSP                         3      15,000          7,500
     1.6    M640116      GSM 900 TRX                                               4      18,000          9,000
     1.7    M340220      13 MHz Clock Unit                                         3       4,500          2,250
     1.8    M640157      Turbo Kit (GSM 900 MHz) in 8 watts                        4      20,000         10,000
     1.9    M720040      Power Supply (+24V/230VAC) for WAVEXchange & BSC          2       4,600          2,300
     1.10   M640035      Power Supply AC230V for BTS                               4       4,400          2,200

- ----------------------------------------------------------------------------------------------------------------------------------
          SUBTOTAL (SPARE PARTS FOR FIRST 3 CLUSTERS)                                                                    157,750


II   RECOMMENDED SPARE PARTS AND PRICE FOR CLUSTER 4-7

B     1                  RECOMMENDED SPARE PARTS FOR CLUSTER 4-7                   1                    202,900          202,900
     1.1    M340123      IWP Module with 16MB RAM, MMU                             4       6,500          3,250
     1.2    M340137      IWP Module with 64MB RAM, MMU HD                          4       8,400          4,200
     1.3    M340129      E1 Module, 75 Ohm, BTS Only                               4       6,500          3,250
     1.4    M340181      E1 Module, 75 Ohm with 2 DSPs                             3      11,000          3,500
     1.5    M640183      E1 Module, 75 Ohm with 4 TRAU DSP                         4      15,000          7,500
     1.6    M640116      GSM 900 TRX                                               5      18,000          9,000
     1.7    M340220      13 MHz Clock Unit                                         4       4,500          2,250
     1.8    M640157      Turbo Kit (GSM 900 MHz) in 8 watts                        5      20,000         10,000
     1.9    M720040      Power Supply (+24V/230VAC) for WAVEXchange & BSC          2       4,600          2,300
     1.10   M640035      Power Supply AC230V for BTS                               5       4,400          2,200

- ----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                              24th November 1999
interWAVE PROPRIETARY                                   IN COMMERCIAL CONFIDENCE

<PAGE>

<TABLE>
<CAPTION>

                                                                                                                       Page 2 of 2

- ----------------------------------------------------------------------------------------------------------------------------------
ITEM      PART NUMBER  DESCRIPTION                                                QTY.   LIST PRICE  SPECIAL DISCOUNT   AMOUNT TO
                                                                                          U/P (US$)      U/P (US$)      HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>          <C>                                                       <C>     <C>         <C>               <C>
          SUBTOTAL (SPARE PARTS FOR CLUSTERS 4-7)                                                                        202,900


III  QUOTATION SUMMARY FOR SPARE PARTS FOR CLUSTER 1-7

      1                  SPARE PARTS FOR IWC EQUIPMENT FOR CLUSTER 1-3             1                    157,750          157,750

      2                  SPARE PARTS FOR IWC EQUIPMENT FOR CLUSTER 4-7             1                    202,900          202,900

- ----------------------------------------------------------------------------------------------------------------------------------
          SUB-TOTAL (SPARE PARTS FOR CLUSTER 1-7)                                                                        360,650


IV   OPTION FOR CIF TERMS

      1   ADDITIONAL COST FOR CIF COST FOR SPARE PARTS (CLUSTER 1-3) TO SRI LANKA  1                      4,733            4,733

      2   ADDITIONAL COST FOR CIF COST FOR SPARE PARTS (CLUSTER 4-7) TO SRI LANKA  1                      6,087            6,087

- ----------------------------------------------------------------------------------------------------------------------------------
          SUB-TOTAL (CIF COST FOR CLUSTER 1-7 SPARES)                                                                     10,820

</TABLE>


<PAGE>

interWAVE Communications Confidential                               Page 1 of 10

APPENDIX B.4  SYSTEM EXPANSION AND SOFTWARE UPGRADE PRICE FOR WIRELESS ACCESS
              PROJECT FOR HUTCHISON TELECOMMUNICATIONS INTERNATIONAL LTD.

<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
ITEM  PART NUMBER  DESCRIPTION                                         QTY.      LIST PRICE     SPECIAL DISCOUNT       AMOUNT TO
                                                                                  U/P (US$)         U/P (US$)         HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
I    SYSTEM EQUIPMENT FOR CLUSTER 4 IN GREATER COLUMBO AREA
<S>  <C>           <C>                                                 <C>       <C>            <C>                   <C>

A     1            WAVEXPRESS 8W/1TRX TURBOWAVE FOR 1 X 1+1+1
                   CONFIGURATION                                          3          50,200           25,100                75,300
     1.1  M5120A   - 1 no. of WAVEXpress 9 slots chassis with cover
                   and fan cooling                                        3          30,200
                   - 1 no. of interWAVE processor (IWP) module
                   - 1 nos. of E1 trunk module (2 E1-port each)
                   - 1 no. GSM 900 full bank TRX module
                   - 1 no. clock module
                   - 1 no. power supply
     1.2 M640157   Turbo Option, 8Watt(900 MHz)                           3          20,000

B     1            WAVEXPRESS 8W/2TRX TURBOWAVE FOR 3 X 2+2+2
                   CONFIGURATION                                          9          65,200           32,600               293,400
     1.1           - 1 no. of WAVEXpress 9 slots chassis with cover and
                   fan cooling                                            9          45,200
                   - 1 no. of interWAVE processor (IWP) module
                   - 1 nos. of E1 trunk module (2 E1-port each)
                   - 2 no. GSM 900 full band TRX module
                   - 1 no. clock module
                   - 1 no. power supply
     1.2 M640157   Turbo Option, 8Watt(900 MHz)                           9          20,000

C     1            WAVEXPRESS BSC (7E1) CONFIGURATION                     1         107,200           53,600                53,600
     1.1 M5030     - no. of WAVEXpress 9 slots chassis with cover and
                   fan cooling                                            1          43,600
                   - 1 no. of interWAVE processor (IWP) module
                   - 1 nos. of E1 trunk module (2 E1-port each)
                   for Abis interface
                   - 1 nos. of E1 trunk module (2 E1-port each)
                   for A interface
                   - 1 no. clock module
                   - 1 no. power supply
     1.2 M640183   Additional E1 trunk module (2 E1-port each) 75 ohm
                   w/4 DSPs for Abis interface                            3          15,000
     1.3 M340127   Additional E1 trunk module (2E1-port each) 75 ohm
                   w no DSPs for A interface                              2           7,000
     1.4 M640028   Additional power supply for BSC                        1           4,600

D     1            WAVEXCHANGE WXC (5E1) CONFIGURATION                    1         100,600           50,300                50,300
     1.1 M5060     - 1 no. of WAVEXpress 9 slots chassis with cover
                   and fan cooling                                        1          71,000
                   - 1 no. of interWAVE processor (IWP) module
</TABLE>

<PAGE>
                                                                   Page 2 of 10
<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
ITEM  PART NUMBER  DESCRIPTION                                         QTY.      LIST PRICE     SPECIAL DISCOUNT       AMOUNT TO
                                                                                  U/P (US$)         U/P (US$)         HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>   <C>          <C>                                                 <C>       <C>            <C>                   <C>

                   - 1 nos. of E1 trunk module (2 E1-port each)
                   for A interface
                   - 1 nos. of E1 trunk module (2 E1-port each) for
                   PSTN interface
                   - 1 no. clock module
                   - 1 no. power supply
      1.2 M640181  Additional E1 trunk module (2 E1-port each)
                   75 ohm w/2 DSPs for PSTN interface                     1          11,000
      1.3 M340127  Additional E1 trunk module (2 E1-port each)
                   75 ohm w no DSPs for A interface                       2           7,000
      1.4 M640028  Additional redundant power supply for WAVEXchange      1           4,600

E      1  S700031  NETWORK ELEMENT FOR ALL 21 TRXS UNDER THE CLUSTER     21          10,000            5,000               105,000

F      1  OPENRACK OPEN FRAME EQUIPMENT RACK FOR EACH BTS SITE            4           4,000            2,000                 8,000

G      1  CABINET  EQUIPMENT CABINET FOR BSC SITE                         2           6,000            3,000                 6,000

- ----------------------------------------------------------------------------------------------------------------------------------
        SUB-TOTAL  (ALL NSS/BSS EQUIPMENT FOR CLUSTER 4)                                                                     591,600
</TABLE>

<PAGE>
<TABLE>
<CAPTION>
                                                                   Page 3 of 10
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            SPECIAL
                                                                                                LIST PRICE  DISCOUNT   AMOUNT TO
ITEM      PART NUMBER  DESCRIPTION                                                       QTY.    U/P (US$)  U/P (US$)  HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>          <C>                                                               <C>     <C>        <C>        <C>
II        System Equipment for Cluster 5 in Greater Columbo Area

A  1                   WAVEXpress 8W/1TRX TurboWAVE for 3 x 1+1+1 Configuration            9      50,200       25,100   225,900
  1.1     M5120A       - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling    9      30,200
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each)
                       - 1 no. GSM 900 full band TRX module
                       - 1 no. clock module
                       - 1 no. power supply
   1.2    M640157      Turbo Option, 8 Watt (900MHz)                                       9      20,000

B  1                   WAVEXpress 8W/2TRX TurboWAVE for 3 x 2+2+2 Configuration            9      65,200       32,600    293,400
  1.1     M5220A       - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling    9      45,200
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each)
                       - 1 no. GSM 900 full band TRX module
                       - 1 no. clock module
                       - 1 no. power supply
   1.2    M640157      Turbo Option, 8 Watt (900MHz)                                       9      20,000

C  1                   WAVEXpress BSC (8E1) Configuration                                  1     122,200       61,100     61,100
  1.1     M5220A       - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling    1      43,600
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each) for Abis interface
                       - 1 nos. of E1 trunk module (2 E1-port each) for A interface
                       - 1 no. clock module
                       - 1 no. power supply
   1.2    M640183      Additional E1 trunk module (2 E1-port each) 75 ohm w/4 DSPs for     4      15,500
                         Abis interface
   1.3    M340127      Additional E1 trunk module (2 E1-port each) 75 ohm w no DSPs for    2       7,000
                         A interface
   1.4    M640028      Additional redundant power supply for BSC                           1       4,600

D  1                   WAVEXpress WXC (2E1) Configuration                                  1      48,200       24,100     24,100
  1.1     M5030        - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling    1      43,600
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each) for A interface
                       - 1 nos. of E1 trunk module (2 E1-port each) for PSTN interface
                       - 1 no. clock module
                       - 1 no. power supply
   1.2    M640183      Additional E1 trunk module (2 E1-port each) 75 ohm w/4 DSPs for     0      15,000
                         Abis interface


<PAGE>
                                                                   Page 4 of 10
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            SPECIAL
                                                                                                LIST PRICE  DISCOUNT   AMOUNT TO
ITEM      PART NUMBER  DESCRIPTION                                                       QTY.    U/P (US$)  U/P (US$)  HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
   1.3    M340127      Additional E1 trunk module (2 E1-port each) 75 ohm w no DSPs for    0       7,000
                         A interface
   1.4    M640028      Additional redundant power supply for BSC                           1       4,600

E  1                   WAVEXpress WXC (6E1) Configuration                                  1     107,600       53,800     53,800
  1.1     M5060        - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling    1      71,000
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each) for A interface
                       - 1 nos. of E1 trunk module (2 E1-port each) for PSTN interface
                       - 1 no. clock module
                       - 1 no. power supply
   1.2    M640181      Additional E1 trunk module (2 E1-port each) 75 ohm w/2 DSPs for     1      11,000
                         Abis interface
   1.3    M340127      Additional E1 trunk module (2 E1-port each) 75 ohm w no DSPs for    3       7,000
                         A interface
   1.4    M640028      Additional redundant power supply for WAVEXchange                   1       4,600

F   1                  Network Element for all 27 RXs under the cluster                   27      10,000        5,000    135,000

G   1     OPENRACK     Open Frame Equipment Rack for Each BTS Site                         6       4,000        2,000     12,000

H   1     CABINET      Equipment Cabinet for BSC Site                                      2       6,000        3,000      6,000
- ----------------------------------------------------------------------------------------------------------------------------------
          SUB-TOTAL (All NSS/BSS Equipment for Cluster 5)                                                                811,300

</TABLE>





<PAGE>

                                                                  Page 5 of 10

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            SPECIAL
                                                                                                 LIST PRICE DISCOUNT   AMOUNT TO
ITEM      PART NUMBER  DESCRIPTION                                                       QTY.    U/P (US$)  U/P (US$)  HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>          <C>                                                               <C>    <C>         <C>        <C>
III       SYSTEM EQUIPMENT FOR CLUSTER 6 IN GREATER COLUMBO AREA
A          1           WAVEXpress 8W/1TRX TurboWAVE FOR 1 X 1+1+1 CONFIGURATION           3      50,200     25,100      75,300
          1.1 M5120A   - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling   3      30,200
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each)
                       - 1 no. GSM 900 full band TRX module
                       - 1 no. clock module
                       - 1 no. power supply
          1.2 M640157  Turbo Option, 8 Watt (900 MHz)                                     3      20,000

B          1           WAVEXpress 8W/2TRX TurboWAVE FOR 3 X 2+2+2 CONFIGURATION           9      65,200     32,600     293,400
          1.1 M5220A   - 1 NO. OF WAVEXpress 9 SLOTS CHASSIS WITH COVER AND FAN COOLING   9      45,200
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each)
                       - 2 no. GSM 900 full band TRX module
                       - 1 no. clock module
                       - 1 no. power supply
          1.2 M640157  Turbo Option, 8 Watt (900 MHz)                                     9      20,000

C          1           WAVEXpress BSC (7E1) CONFIGURATION                                 1     107,200     53,600      53,600
          1.1 M5030    - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling   1      43,600
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each) for Abis interface
                       - 1 nos. of E1 trunk module (2 E1-port each) for A interface
                       - 1 no. clock module
                       - 1 no. power supply
          1.2 M640183  Additional E1 trunk module (2 E1-port each)
                       75 ohm w/4 DSPs for Abis interface                                 3      15,000
          1.3 M340127  Additional E1 trunk module (2 E1-port each)
                       75 ohm w no DSPs for A interface                                   2       7,000
          1.4 M640028  Additional redundant power supply for BSC                          1       4,600

D          1           WAVEXchange WXC (5E1) CONFIGURATION                                1     100,600     50,300      50,300
          1.1  M5060   - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling   1      71,000
                       - 1 no. of interWAVE processor (IWP) module
                       - 1 nos. of E1 trunk module (2 E1-port each) for A interface
                       - 1 nos. of E1 trunk module (2 E1-port each) for PSTN interface
                       - 1 no. clock module
                       - 1 no. power supply
          1.2 M640181  Additional E1 trunk module (2 E1-port each) 75 ohm w/2 DSPs
                       for PSTN interface                                                 1      11,000

<PAGE>

                                                                 Page 6 of 10

<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            SPECIAL
                                                                                                 LIST PRICE DISCOUNT   AMOUNT TO
ITEM      PART NUMBER  DESCRIPTION                                                       QTY.    U/P (US$)  U/P (US$)  HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>          <C>                                                               <C>     <C>        <C>        <C>
          1.3 M340127  Additional E1 trunk module (2 E1-port each) 75 ohm w no DSPs
                       for A interface                                                    2       7,000
          1.4 M640028  Additional redundant power supply for WAVEXchange                  1       4,600

E          1  S700031  NETWORK ELEMENT FOR ALL 21 TRXS UNDER THE CLUSTER                 21      10,000      5,000     105,000

F          1  OPENRACK OPEN FRAME EQUIPMENT RACK FOR EACH BTS SITE                        4       4,000      2,000       8,000

G          1  CABINET  EQUIPMENT CABINET FOR BSC SITE                                     2       6,000      3,000       6,000

- ----------------------------------------------------------------------------------------------------------------------------------
           SUB-TOTAL (ALL NSS/BSS EQUIPMENT FOR CLUSTER 6)                                                             591,600
</TABLE>

<PAGE>

                                                                   Page 7 of 10

<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                      QTY.   LIST PRICE SPECIAL DISCOUNT  AMOUNT TO
ITEM      PART NUMBER  DESCRIPTION                                                           U/P (US$)     U/P (US$)     HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>       <C>                                                               <C>    <C>        <C>              <C>
IV SYSTEM EQUIPMENT FOR CLUSTER 7 IN GREATER COLUMBO AREA
 A   1              WAVEXpress 8W/1TRX TurboWAVE FOR 2x1+1+1 CONFIGURATION            6        50,200        25,100       150,600
    1.1    M5120A   - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling  6        30,200
                    - 1 no. of interWAVE processor (IWP) module
                    - 1 nos. of E1 trunk module (2 E1-port each)
                    - 1 no. GSM 900 full band TRX module
                    - 1 no. clock module
                    - 1 no. power supply
    1.2    M640157  Turbo Option, 8 Watt (900 MHz)                                    6        20,000

 B   1              WAVEXpress 8W/2TRX TurboWAVE FOR 2x2+2+2 CONFIGURATION            6        65,200        32,600       195,600
    1.1    M5220A   - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooling  6        45,200
                    - 1 no. of interWAVE processor (IWP) module
                    - 1 nos. of E1 trunk module (2 E1-port each)
                    - 2 no. GSM 900 full band TRX module
                    - 1 no. clock module
                    - 1 no. power supply
    1.2    M640157  Turbo Option, 8 Watt(900 MHz)                                      6        20,000

 C   1              WAVEXpress BSC (7E1) CONFIGURATION                                1       107,200        53,600        53,600
    1.1     M5030   - 1 no. of WAVExpress 9 slots chassis with cover and fan cooling  1       43,600
                    - 1 no. of interWAVE processor (IWP) module
                    - 1 nos. of E1 trunk module (2 E1-port each) for Abis interface
                    - 1 nos. of E1 trunk module (2 E1-port each) for A interface
                    - 1 no. clock module
                    - 1 no. power supply
   1.2     M640183  Additional E1 trunk module (2 E1-port each) 75 ohm w/4 DSPs for
                    Abis interface                                                    3        15,000
   1.3     M340127  Additional E1 trunk module (2 E1-port each) 75 ohm w no DSPs A
                    interface                                                         2         7,000
   1.4     M640028  Additional redundant power supply for BSC                         1         4,600

 D  1               WAVEXchange WXC (5E1) CONFIGURATION                                1       100,600        50,300        50,300
   1.1      M5060   - 1 no. of WAVEXpress 9 slots chassis with cover and fan cooing   1        71,000
                    - 1 no. of interWAVE processor (IWP) module
                    - 1 nos. of E1 trunk module (2E1-port each) for A interface
                    - 1 nos. of E1 trunk module (2E1-port each) for PSTN interface
                    - 1 no. clock module
                    - 1 no. power supply
   1.2     M640181  Additional E1 trunk module (2E1-port each) 75 ohm w/2 DSPs for
                    PSTN interface                                                    1        11,000


<PAGE>

                                                                   Page 8 of 10

<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                      QTY.   LIST PRICE SPECIAL DISCOUNT  AMOUNT TO
ITEM      PART NUMBER  DESCRIPTION                                                           U/P (US$)     U/P (US$)     HUTCH (US$)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>       <C>          <C>                                                            <C>    <C>        <C>              <C>

   1.3     M340127      Additional E1 trunk module (2E1-port each) 75 ohm w no DPSs for
                        A interface                                                       2     7,000
   1.4     M640028      Additional redundant power supply for WAVEXchange                 1     4,600
 E  1                   NETWORK ELEMENT FOR ALL 18 TRXS UNDER THE CLUSTER                18    10,000       5,000          90,000

 F  1      OPENRACK     OPEN FRAME EQUIPMENT RACK FOR EACH BTS SITE                       4     4,000       2,000           8,000

 G  1      CABINET      EQUIPMENT CABINET FOR BSC SITE                                    2     6,000       3,000           6,000

SUB-TOTAL (ALL NSS/BSS EQUIPMENT FOR CLUSTER 7)                                                                            554,100
</TABLE>


<PAGE>
<TABLE>
<CAPTION>
                                                                                                        Page 9 of 10
- -----------------------------------------------------------------------------------------------------------------------------------
ITEM    PART NUMBER    DESCRIPTION                                                QTY.   LIST PRICE   SPECIAL DISCOUNT  AMOUNT TO
                                                                                          U/P (US$)       U/P (US$)     HUTCH (US$)
- -----------------------------------------------------------------------------------------------------------------------------------
<S>    <C>           <C>                                                         <C>     <C>        <C>              <C>
 V    IWC SYSTEM R4.1 TO R4.5 UPGRADE FOR CLUSTER 1 - 3 IN GREATER COLOMBO AREA

 A       1             WAVEXpress/BSS UPGRADE FOR CLUSTER 1-3                      81                             500        40,500
        1.1            Software Charge per TRX                                     81           1,000             500

 B       1             WAVEXpress/WXC UPGRADE FOR CLUSTER 1-3                      81                           1,500       121,500
        1.1            Software Charge per TRX                                     81           3,000           1,500

 C       1             OMC SOFTWARE UPGRADE                                        81                             150        12,150
        1.1            Software Charge per TRX                                     81             300             150

===================================================================================================================================
              SUB-TOTAL (CLUSTER 1 - 3 IWC EQUIPMENT R4.1 SYSTEM UPGRADE TO R4.5)                                           174,150


 VI   QUOTATION SUMMARY FOR SOFTWARE UPGRADE FOR CLUSTER 1 - 3 AND EQUIPMENT EXPANSION TO CLUSTER 4 - 7

              FOR THE SYSTEM UPGRADE FOR CLUSTER 1 - 3 AND EXPANSION TO CLUSTER 4 - 7

         1             - Subtotal (All NSS/BSS Equipment for Cluster 4)             1                         591,600       591,600
         2             - Subtotal (All NSS/BSS Equipment for Cluster 5)             1                         811,300       811,300
         3             - Subtotal (All NSS/BSS Equipment for Cluster 6)             1                         591,600       591,600
         4             - Subtotal (All NSS/BSS Equipment for Cluster 7)             1                         554,100       554,100
         5             - Subtotal for System Upgrade of iWC Equipment
                         for Cluster 1-3 to Rel 4.5                                 1                         174,150       174,150

===================================================================================================================================
              TOTAL (SYSTEM ECPANSION OF CLUSTER 4 - 7, CLUSTER 1 - 3 SYSTEM UPGRADE)                                     2,722,750
</TABLE>


<PAGE>
<TABLE>
<CAPTION>
                                                                                                       Page 10 of 10
- -----------------------------------------------------------------------------------------------------------------------------------
ITEM    PART NUMBER    DESCRIPTION                                                QTY.   LIST PRICE   SPECIAL DISCOUNT  AMOUNT TO
                                                                                          U/P (US$)       U/P (US$)     HUTCH (US$)
- -----------------------------------------------------------------------------------------------------------------------------------
<S>    <C>           <C>                                                         <C>     <C>        <C>              <C>
VII   OPTION FOR CIF TERMS

         1    ADDITIONAL COST FOR CIF COST FOR PHASE 2 EQUIPMENT TO SRI LANKA      1                          76,458        76,458

===================================================================================================================================
              SUB-TOTAL (CIF COST FOR PHASE 2 EQUIPMENT)                                                                    76,458


VIII  OPTION FOR INTEGRATED ECHO CANCELLORS FOR CLUSTERS 4 - 7

              OPTION FOR INTEGRATED ECHO CANCELLORS FOR 4 - 7

 A       1             OPTION FOR INTEGRATED ECHO CANCELLORS FOR 4 - 7             12                           2,500        30,000
        1.1            - 1 no. of Echo Cancellor, supplied as integrated echo      12           5,000           2,500
                       cancellor per E1 module for 2 E1 port*

         2    CIF COST TO SRI LANKA FOR INTEGRATED ECHO CANCELLORS OPTIONS          1                             900           900

===================================================================================================================================
              SUB-TOTAL (ECHO CANCELLORS)                                                                                    30,900
</TABLE>

*Note:  Should the integrated echo cancellor is not available in time, then
        external echo cancellor will be supplied with the cost absorbed by the
        above charge


<PAGE>

                                   SCHEDULE 1


                                 SPECIFICATIONS

<PAGE>

                                   SCHEDULE 1

                       FEATURE DESCRIPTION FOR RELEASE 4.1

Release 4.1 WAVEXchange supports the following features.


4.1.1  RELEASE 4.1 WAVEXCHANGE ADDITIONAL FEATURES LIST


                               BASE FUNCTIONALITY
                               ------------------

              -      Speech Services: MO, MT (GSM900/DCS1800)
              -      Emergency Calls
              -      Integral HLR/VLR (GSM 3.08)
              -      Internal MAP/C and MAP/D interfaces to HLR/MSC (GSM 9.02
                     MAP specification)
              -      BSSMAP Connection / Connection-less (GSM 8.08)
              -      Call Detail Records (GSM 12.05, ASCII formatted)
              -      Performance Reports (GSM 12.04, with proprietary
                     extensions)
              -      Alarm / Event Management (GSM 12.04, with proprietary
                     extensions)
              -      HLR: 4,000 subscriber capacity on the NSS
              -      Private A-Link Multiplexer (PALIM)
              -      Intelligent Call Routing


                               MOBILITY MANAGEMENT
                               -------------------

              -      Mobility Management Standard (GSM 4.08)


                                 CALL MANAGEMENT
                                 ---------------

              -      Call Management Standard (GSM 4.08; DTAP messages
                     supported)


                             SUPPLEMENTARY SERVICES
                             ----------------------

              -      CallerID
              -      Call Forwarding Unconditional (GSM 2.82)
              -      Call Forwarding Conditional (GSM 2.82)
              -      Call Hold (GSM 2.83)
              -      Call Waiting (GSM 2.83)
              -      Call Transfer (GSM 2.91)
              -      Intra-WAVEXchange FAX / Data Services (GSM 2.02 / 2.03)


              BSS SERVICES

              -      No cycling of MS Power
              -      MS Dynamic Power Control on RxQual and RxLev

<PAGE>

              -      Separate Settable HO Margins
              -      MS fast Power Down
              -      Speed Sensitive Microcell HO
              -      BTS Daisy Chain (up to 3)
              -      12.21 standard A-bis Interface to BTS
              -      Racal BSS Testing Support
              -      E1 & TRX  Hot Swap
              -      Enhanced Network Performance Statistics


In addition to Release 4.1 BSS features, the following listed BSS additional
features of Release 2.0 and 3.0 are also equipped with BSS deployment software
load. They are:


4.1.2  RELEASE 2.0 BSS ADDITIONAL FEATURES LIST

              -      No cycling of MS Power
              -      MS Dynamic Power Control on RxQual and RxLev
              -      Separate Settable HO Margins
              -      MS fast Power Down
              -      Speed Sensitive Microcell HO
              -      12.21 standard A-bis Interface to BTS
              -      Racal BSS Testing Support
              -      TRX  Hot Swap
              -      Enhanced Network Performance Statistics
              -      GSM Data Services


4.1.3  RELEASE 3.0 BSS ADDITIONAL FEATURES LIST

              -      BSC capacity :- up to 30 TRXs per BSC;  up to 16 BTSs per
                     BSC
              -      DCS1800 Full-band Radio (WE/MX)
              -      Antenna Receive Diversity
              -      Dynamic Power Control
              -      Direct Retry (Phase 1 and Phase 2 mobiles)
              -      3 TRXs per WAVEXpress BTS
              -      Pre-process Measurement at BTS
              -      WE Daisy-Chain (No Bypass)


RELEASE 4.1 BSS ADDITIONAL FEATURES LIST

              The BSS deployment software load for this project will be Release
              4.1 BSS load; the additional features of this load are summarized
              as below:

<PAGE>

              -      SMS Cell Broadcast
              -      Settable Handover Margin by cell
              -      DTX Downlink
              -      Call Trace -  Phase 1
              -      Double BCCH (BA) Allocation
              -      Call Queuing
              -      Idle Channel Interface Over Threshold Notification
              -      Very Early Assignment
              -      Direct Retry on Congestion
              -      Automatic Hardware Detection
              -      BSC Dual Band - GSM900 & GSM1800
              -      N-2 Software Support
              -      Alarm Management Enhancement
              -      Y2K Compliance

              with detailed elaboration of each feature as below:


4.1.4.1 SMS CELL BROADCAST

              This SMS Cell Broadcast service is analogous to the teletext
              service. It permits a number of unacknowledged general messages to
              be broadcast to all receivers within a particular region. SMSCB
              messages are broadcast to defined geographical areas known as cell
              broadcast areas. These areas may comprise of one or more cells, or
              may comprise the entire PLMN.

              It provides SMS Cell Broadcast capability as defined GSM
              Specification 03.41. It's capabilities and benefits are:

              -      Ability to enter, delete, modify and schedule cell
                     broadcast messages from the OMC.

              -      Supports Background and Normal Messages.

              -      Allows operator to offer specialized services.

              -      Using cell broadcast message it may be possible to indicate
                     on a subscriber's MS whether he is using the in-building
                     network or the PLMN.


4.1.4.2 SETTABLE HANDOVER MARGIN BY CELL

              There are two main types of radio based handover processing
              defined in GSM, namely Rescue and Confinement. Rescue handover is
              performed based on preprocessing RF measurement data collected in
              the uplink and downlink. Both the signal level and quality, and MS
              distance together with the settings of O&M parameters are
              considered to determine the necessity of handover and to evaluate
              the target candidate cell list. Similarly, confinement handover
              decision is made by comparing the computed power budget values
              with a set of O&M thresholds. The

<PAGE>

              feature O&M parameters are introduced to allow greater flexibility
              for the operator to control over the handover decision making
              process.

              It provides the ability to set handover margins on a per cell
              basis. It's capabilities and benefits are:

              -      The settable parameters are Power Budget, RX level and
                     Quality.

              -      Provides greater flexibility to operator to control the
                     handover decision making process.


4.1.4.3 DTX DOWNLINK

              It provides DTX downlink support in addition to existing uplink
              support as defined in GSM Specification 06.31. It's capabilities
              and benefits are:

              -      DTX downlink capabilities is set on a per cell basis by the
                     OMC. This means the BTS can override the request from the
                     MSC.  This is, the BSS can make ultimate decision on
                     providing DTX downlink.

              -      DTX aims at increasing the system efficiency through
                     decrease of the interference level, by inhibiting the
                     transmission of the radio signal when not required from an
                     information point of view.  DTX feature is optional and
                     must therefore be managed.


4.1.4.4 CALL TRACE

       This functional specification describes the Call Trace feature and its
       implementation in the interWAVE WAVEXpress/BSC and WAView/OMC.

       As described in GSM 12.08: The trace facility enables customer
       administration and network management to trace the activities of various
       entities when specific events occur within the PLMN.  This facility
       should also enable the tracing of all the information that is available
       to the PLMN concerning the call path used by the associated entity.

       After integration of the Call Trace functionality into the BSS, the BSC
       will respond to MSC to BSS Invoke Trace messages by compiling trace
       records, and forwarding trace records to an OMC.  The BSS implementation
       of Call Trace will incorporate only a subset of the BSS Call Trace
       functionality defined in GSM 12.08.

       It provides the essential subscriber and equipment trace functionality as
       defined in GSM Specification 12.08.  It's capabilities and benefits are:

       -      Support for 08.08 MSC and BSS Invoke Trace Messages.

       -      Support for normal and priority Basic, Handover and Radio
              BSS Trace Types.

       -      GSM 12.08 Standard BSS Trace Record viewable from OMC.

       -      Enables an operator to trace the activities of various
              network entities when specific events occur within the PLMN
              including the call path used by the entity.

       -      Satisfies regulatory requirement in most countries.


<PAGE>

4.1.4.5 DOUBLE BCCH (BA) ALLOCATION

       The purpose of this feature is to maintain two sets of neighbor lists
       within the BSS. One set is used by the mobile while it is camping on the
       cell in the IDLE mode. The other set is used by the mobile while a call
       is active on the Mobile. This feature allows more control on a cell
       traffic. This feature is useful in case of overlay/underlay cell, where
       the mobile camps on the macrocell in Idle mode and when the call is
       active, it handed over to underlay micro cell where it will have
       different list of neighbors.


       In order to take advantage of this feature, the operator is recommended
       to place all cells in the idle mode list, but only neighboring cells in
       the active list. Since all cells are in the idle list, the mobile will
       not try to reach the cells it was near when it is powered off. This could
       avoid the problem with mobiles accessing cells that are far away when a
       user powers-up the phone.

       It provides capability to maintain both an idle and an active mode
       neighbour list within the BSS. It's capabilities and benefits are:

              -      Allows more control on cell traffic.

              -      It is useful in cases of overlay/underlay cell plan that
                     the mobile camps on the macrocell in idle mode and
                     subsequently is handed over to the underlay microcell.


4.1.4.6 CALL QUEUING

       It provides Call Queuing function as defined in GSM Specification 08.08,
       GSM 04.22 and GSM 12.20.  It's capabilities and benefits are:

              -      Support for queuing during initial assignment, subsequent
                     assignment and handover, and queuing priority.

              -      Support to set queue length, enable/disable priority,
                     assignment request time limit  and handover request time
                     limit from the OMC.

              -      Provides full compliment of viewable operational
                     statistics.

              -      Provides operator the ability to reduce call failure rate.


4.1.4.7 IDLE CHANNEL INTERFERENCE OVER THRESHOLD NOTIFICATION

       The goal of this feature to send a notification to OMC in case
       interference level crosses a threshold set by the operator. BSS shall
       support 6 quality bands and a measurement period. The alarm threshold
       should be settable between 0 and 5. OMC threshold bands should be part of
       templates.

       This feature requires BSS to send a minor alarm every time the
       interference on an Idle TCH/F channel crosses the threshold set by the
       operator. The alarm should be sent as a FailureEventReport against TrxCh
       object with severity as MINOR. BSS should also send a clearing event if
       the interference level goes below threshold set by the operator. BSS
       should keep the history of alarm to reduce the number of alarms sent to
       OMCR. Idle Channel Interference over Threshold alarm is sent for a TrxCh,
       BSS

<PAGE>

       should not repeat the alarm in case interference level for the same TrxCh
       remains above threshold value during next measurement period.

       Operator shall be able to set the threshold value per BTS basis.  All the
       trxch in a bts will use the same threshold value for notification of Idle
       Channel Interference Measurement over Threshold. The default value of
       this threshold should be set to 4.  BSC should also send a major alarm
       against TRX object if half or more than half of these trx channels
       crosses threshold value for interference level.  Operator should also be
       able to disable TrxCh alarms and just see the TRX alarm.

       In existing design we support 6 bands for Idle Channel Interference level
       defined in HandCont object under Bts object.  Operator can set the range
       for all the 6 bands through OMC/NMI.  Default values are shown in the
       table given below.

<TABLE>
<CAPTION>

- ----------------------------------------------------
         Band       Default Range
- ----------------------------------------------------
<S>                   <C>
             0        < -110 dBm
- ----------------------------------------------------
             1        -110 dBm  to  -105 dBm
- ----------------------------------------------------
             2        -105 dBm  to  -100 dBm
- ----------------------------------------------------
             3        -100 dBm  to  -95 dBm
- ----------------------------------------------------
             4        -95 dBm  to  -90 dBm
- ----------------------------------------------------
             5        > -90 dBm
- ----------------------------------------------------
</TABLE>

       It provides OMC notification when operator defined Idle Channel
       Measurement thresholds are exceeded.  It's capabilities and benefits are:

       -      The BSS will send a minor alarm to then OMC every time the
              interference level on an idle TCH/F Channel crosses the operator
              defined threshold.

       -      The threshold is settable per BTS from the OMC.

       -      Interference measurements are based on average of measurements
              taken over two minutes intervals.

       -      Provides improved measurement and diagnostic capability.


4.1.4.8 VERY EARLY ASSIGNMENT

       It provides Very Early Assignment as defined in GSM Specification 04.08,
       05.08, 08.08 ad 08.58.  It's capabilities and benefits are:

       -      VEA provides the ability to allocate a TCH at initial assignment,
              when it is probable that the requested connection will need such a
              channel.

       -      The following options are selectable from the OMC: disable, enable
              all, enable emergency calls only, enable only if all SDCCHs are in
              use, enable for emergency call or only if all SDCCHs are in use.

       -      Very early assignment scheme allows the network operator to
              minimize the number of SDCCH channels, thereby maximizing the
              number of TCH channels available. This can result in an increase
              in the call carrying capacity of the cell.

<PAGE>

4.1.4.9 DIRECTED RETRY ON CONGESTION

       When a connection is established, the cell is chosen by the MS according
       to the C1 or C2 cell selection/reselection criterion based on the
       downlink measurements and MS maximum transmission power only.  BSS may
       not agree this is the best cell because the uplink reception quality is
       not taken into account.  Therefore, when a TCH is to be assigned, a
       handover to another cell might be necessary due to the lack of channel
       resources or congestion in the original cell.  This process of
       SDCCH-to-TCH handover at the time of call set-up is called Directed
       Retry.

       Directed Retry On Congestion will make use of the congestion information
       in the original as well as the target cell. When a connection is
       requested and directed retry feature is enabled by the operator, a check
       will be made to verify that the congestion in the given cell is below an
       operator defined threshold, before making a request for a traffic
       channel. If the given cell is already congested, preferred target list
       generated from measurement reports will be used for directed retry. Flow
       chart at the end of the document illustrates the steps for this feature.

       The main thrust is to give more preference to ongoing calls by reserving
       some capacity per cell for incoming handover requests for ongoing calls.
       New O&M parameters are provided to allow the operator to specify the
       traffic load threshold (ranges from 0 to 100%) and the current level of
       traffic congestion (ranges from 0 to 100%).

       The purpose of this feature is to add the ability to consider the
       congestion level of a cell before requesting a traffic channel in that
       cell as a result of a directed retry.  It's capabilities and benefits
       are:

       -      Can be enabled/disabled from OMC.

       -      Provides the operator with the ability to give preference to
              on-going calls by reserving capacity on a per cell basis for HO
              requests.


4.1.4.10       AUTOMATIC TRX HARDWARE DETECTION

       The purpose of this feature is to allow hot insertion and removal of a
       TRX Module in WAVEXpress Chassis.  It's capabilities and benefits are:

       -      Automatic detection and update of a module insertion or removal.

       -      Automatic triggering of diagnostic tests upon insertion.

       -      OMC notification of changes.

       -      OMC update of module identification information

       -      Minimizes downtime due to repairs or system upgrades.

       -      Improves reliability of module identification information.

<PAGE>

4.1.4.11       BSC DUAL BAND - GSM900 & DCS1800

       The purpose of this feature is to provide BSC support for the management
       of both GSM900 and DCS1800 Base stations.

       It supports only string configuration with maximum of four BTS connected
       in chain. The limitation of four comes from the E1 card's current
       hardware, which can only support four Lapd connections.  The philosophy
       followed for the string configuration is during the initialization of
       BTS, a passthrough will be connected by making cross connects in wave
       express and  programming the time slot assignment ram in micro.  All the
       port 0 channels are connected to port 1 channels except the Lapd channel,
       which is read from flash.  This Lapd channel has to be programmed in
       flash before commissioning the BTS.  BTS will try to establish Lapd
       connection with BSC using this timeslot.  As soon as abismgr on the BSC
       having the same e1chan is unlocked, Lapd connection will be established
       and BTS will try to come up.  Care is to be taken that no two BTS in the
       chain should be programmed to come up on the same E1 Lapd channel.  If
       this is done then more distant BTS on the chain will not come up.  After
       BTS comes up, TRX channels will be connected to abis on getting
       notification from  BSC.  Thus Abis channels connected to TRX will also be
       dropped from passthrough. In short all the channels used by a particular
       BTS will not be passed through, while the rest will be.  In case of warm
       start TRX channels will be disconnected from abis channels and these
       disconnect abis channels will be made passthrough.  Also whenever TRX
       channel are disconnected, a passthrough will be connected on the
       corresponding abis channels.

       It's capabilities and benefits are:

       -      General compliance with GSM 03.26 "Multi-band operation of GSM/DCS
              1800 by a single operator.

       -      Operator selectable option of single-band or mixed-band neigbour
              mode.

       -      Operation of mixed-band BTSs in a daisy chain configuration.

       -      Ability to prioritize GSM900 or DCS1800 on cell selection and
              handover.

       -      Provides enhanced capacity due to sharing of BSC and E1 resources.


4.1.4.12       N-2 SOFTWARE SUPPORT

       It provides the ability to upgrade Release N-1 or N-2 BSS to Release N
       BSS without shutting down the BSC.  It's capabilities and benefits are:

       -      The N-2 compatibility feature only implies general GSM 12.21 and
              08.58 interface and functionality between the BSC and then BTS.
              Release specific compatibility must be addressed on a feature by
              feature basis.

       -      Minimizes down time during upgrade of network.


4.1.4.13       ALARM MANAGEMENT ENHANCEMENT

       It provides new TRX and E1 alarms, which consider the service impact to
       the parent BSC or BTS.  It's capabilities and benefits are:

<PAGE>

       -      Applies to TRX and E1 Port Objects only.

       -      Introduces a new attribute and severity, which represent the
              service impact of a TRX or E1 Port alarm on the parent BSC or BTS.

       -      Severity is determined dynamically based on the local severity of
              an event multiplied by a weighting factor based on a variety of
              factors including quantity and use of modules.

       -      Severity classes include Ceased, Critical, Major, Minor, Warning
              Level and indeterminate.

       -      Provides ability to report child object alarms based on service
              impact to parent object when reporting alarm.

<PAGE>

SECTION 4.2 -  PRODUCT SPECIFICATIONS


4.2.1 WAVEXCHANGE CAPACITIES

       Functional capacities of the WAVEXchange hardware are shown in Table 1.

<TABLE>
<CAPTION>

- -------------------------------------------------------------------------------
<S>                          <C>
      BSS Support            5 BSC with up to 16 BTS per BSC and
                             up to 60 TRX
- -------------------------------------------------------------------------------
      HLR capacity           4000 subscriber record
- -------------------------------------------------------------------------------
      Total Subscribers      2000 at 0.1 Erlangs
      Support
- -------------------------------------------------------------------------------
                             TABLE 1 - WAVEXCHANGE
</TABLE>

4.2.2  WAVEXPRESS/BTS CAPACITIES

Functional capacities of the WAVEXpress/BTS hardware are shown in Table 2.

<TABLE>
<CAPTION>

- -------------------------------------------------------------------------------
<S>                                 <C>
        Number of TRX per BTS       3 TRX per BTS
- -------------------------------------------------------------------------------
                            TABLE 2 - WAVEXPRESS/BTS
</TABLE>


4.2.3  TURBOWAVE/BTS CAPACITIES
       Functional capacities of the TurboWAVE/BTS hardware are shown in Table 3.

<TABLE>
<CAPTION>

- -------------------------------------------------------------------------------
<S>                                 <C>
        Number of TRX per BTS       2 TRX per BTS for 4 watts in 1 ant.
                                    operation
                                    2 TRX per BTS for 8 watts in 2 ant.
                                    operation
                                    1 TRX per BTS for 16 watts in 1 ant.
                                    operation
- -------------------------------------------------------------------------------
                            TABLE 3 - TURBOWAVE/BTS
</TABLE>


<PAGE>

4.2.4  WAVEXPRESS/BSC CAPACITIES
       Functional capacities of the WAVEXpress/BSC hardware are shown in Table
       4.

<TABLE>
<CAPTION>

- -------------------------------------------------------------------------------
<S>                                 <C>
        BTSs per BSC                16 BTSs supported per BSC
- -------------------------------------------------------------------------------
        Daisy Chain                 Up to 4 BTS per chain
- -------------------------------------------------------------------------------
        TRX Per BSC                 30 TRX supported per BSC
- -------------------------------------------------------------------------------
        Interface Links             maximum of (16) E1 links (2.048 Mb/s)
- -------------------------------------------------------------------------------
        A-Interface Support         A-interface to Siemens MSC
                                    A-interface to Nokia MSC
                                    A-Interface to Ericsson MSC
                                    A-Interface to Lucent MSC
                                    A-Interface to Alcatel MSC
                                    A-Interface to Nortel MSC
- -------------------------------------------------------------------------------
                            TABLE 4 - WAVEXPRESS/BSC
</TABLE>


<PAGE>

4.2.5  WAVEXCHANGE, WAVEXPRESS/BTS/BSC & TURBOWAVE/BTS PLATFORM SPECIFICATIONS
       General specifications of the WAVEXchange, WAVEXpress/BTS/BSC &
       TurboWAVE/BTS platform.

<TABLE>
<CAPTION>

- -------------------------------------------------------------------------------
<S>                                 <C>
        Chassis                     9 Slot 6U Eurocard Form Factor; Front
                                    Panel Service Access
- -------------------------------------------------------------------------------
        Chassis Size                23 cm (width) x 65 cm (height) x 36 cm
                                    (depth)
- -------------------------------------------------------------------------------
        Weight                      Approx. 20 kg full configuration
- -------------------------------------------------------------------------------
        Operating Temperature       00C to +450C
- -------------------------------------------------------------------------------
        Humidity                    10% to 90% non-condensing
- -------------------------------------------------------------------------------
        Thermal Shock               +50C per minute
- -------------------------------------------------------------------------------
        Altitude                    -300 to +3000 Meters
- -------------------------------------------------------------------------------
        Vibration acceleration      5 to 100 Hz with 2G acceleration
- -------------------------------------------------------------------------------
        Mechanical Shock            20 G for 6 msec (half sine)
- -------------------------------------------------------------------------------
        Power Consumption           350 W power supplies (Modular)
- -------------------------------------------------------------------------------
        Input Power Options         Single AC line (with 20 A min. @ 110 VAC)
                                    or -48 VDC
- -------------------------------------------------------------------------------
        AC Input Power              90-130 & 180-264 VAC auto selecting 47-63
                                    Hz
- -------------------------------------------------------------------------------
        AC Input Protection         Fused
- -------------------------------------------------------------------------------
        Power Specifications:            V(min)          V(max)      AMPS(max)
- -------------------------------------------------------------------------------
        AC Input                      90 VAC         264 VAC        10 Amps @
                                     (47-63Hz)       (47-63Hz)      85 VAC
- -------------------------------------------------------------------------------
        -48VDC Input                     -35 VDC        -63 VDC       20 Amps
- -------------------------------------------------------------------------------
        Power Factor                0.65
- -------------------------------------------------------------------------------
        Input Harmonic Current      IEC555-2 & EN60555-2 Compliant
- -------------------------------------------------------------------------------
        Leakage Current             Less than 3.5 mA
- -------------------------------------------------------------------------------
        AC In-rush Limiting         Turn on in-rush current will not exceed 80
                                    Amps peak
- -------------------------------------------------------------------------------
        Input Transient Protection  Per IEEE C62.41, Category A3.IEC-801-2,
                                    -3,-4,-5 (level 3)
- -------------------------------------------------------------------------------
        Cooling                     Forced Air 160 cfm, front intake/exhaust
                                    (not inc. power supplies)
- -------------------------------------------------------------------------------
TABLE 5 -  WAVEXCHANGE, WAVEXPRESS & TURBOWAVE PLATFORM SPECIFICATIONS
</TABLE>

<PAGE>

4.2.6  WAVEXchange TECHNICAL DETAILS
       Specifications of the Combo Switch/BSC/BTS hardware are shown in Table 6.

<TABLE>
<CAPTION>

- -------------------------------------------------------------------------------
<S>                                 <C>
        Standards Supported         ETSI GSM Phase 2
- -------------------------------------------------------------------------------
        Features Supported          Call forward, call barring, call waiting,
                                    interface with PABX and Public MSC, Base
                                    station Controller; GSM RF management,
                                    encryption, power supply redundancy.
- -------------------------------------------------------------------------------
        Mobile Interface            GSM full-rate RF interface, 2400 - 9600
                                    bps transparent data and (enhanced full
                                    rate capability in Release 5.0).
- -------------------------------------------------------------------------------
        Trunk interface             G.703 compliant, E1 - ISDN/PRI or R2 for
                                    PABX and PALIM for MSC
- -------------------------------------------------------------------------------
        Chassis Size                23 cm (width) x 65 cm (height) x 36 cm
                                    (depth)
- -------------------------------------------------------------------------------
        Weight                      Approx. 20 kg
- -------------------------------------------------------------------------------
        Volume                      81.9 liters
- -------------------------------------------------------------------------------
        Operating Temperature       0 (0)C to +45 (0)C
- -------------------------------------------------------------------------------
        Humidity                    10 % to 90 % non-condensing
- -------------------------------------------------------------------------------
        Thermal Shock               IEC 68-2-14
- -------------------------------------------------------------------------------
        Power Requirement           Power consumption: 150 watts, 110/220
                                    volts 50-60 Hz AC, -48 volts DC.
- -------------------------------------------------------------------------------
                         TABLE 6 - COMBO SWITCH/BSC/BTS
</TABLE>

<PAGE>

4.2.7  WAVEXPRESS INDOOR BTS TECHNICAL DETAILS
       Specifications of the WAVEXpress Indoor BTS hardware are shown in Table
       7.

<TABLE>
<CAPTION>

- -------------------------------------------------------------------------------
<S>                                 <C>
        Number of TRX per BTS       Up to 3 TRX per BTS
- -------------------------------------------------------------------------------
        Tx Frequency Range          GSM900: 935 - 960 MHz
- -------------------------------------------------------------------------------
        Rx Frequency Range          GSM900: 890 - 915 MHz
- -------------------------------------------------------------------------------
        Channel Spacing             200 KHz
- -------------------------------------------------------------------------------
        Transmitter Output Power    Approx. 2 Watts
- -------------------------------------------------------------------------------
        Standards Supported         ETSI GSM Phase 2
- -------------------------------------------------------------------------------
        Features Supported          Base station Transceiver Station; GSM RF
                                    management, data and fax, short message
                                    service, antenna receive diversity,
                                    encryption, optional TRX and power supply
                                    redundancy, star and daisy chain
                                    configuration.
- -------------------------------------------------------------------------------
        Mobile Stations Supported   GSM-compliant mobile station (phase 1&2)
- -------------------------------------------------------------------------------
        Mobile Interface            GSM full-rate RF interface, 2400 - 9600
                                    bps transparent data and (enhanced full
                                    rate capability in Release 5.0).
- -------------------------------------------------------------------------------
        Trunk interface             G.703 compliant, E1.
- -------------------------------------------------------------------------------
        Dynamic Power Control       12 dB in 2 dB Step
- -------------------------------------------------------------------------------
        Receiver Sensitivity        Typical - 105 dBm
- -------------------------------------------------------------------------------
        Chassis Size                23 cm (width) x 65 cm (height) x 36 cm
                                    (depth)
- -------------------------------------------------------------------------------
        Weight                      Approx. 20 kg
- -------------------------------------------------------------------------------
        Volume                      81.9 liters
- -------------------------------------------------------------------------------
        Operating Temperature       0 (0)C to + 45 (0)C
- -------------------------------------------------------------------------------
        Humidity                    10 % to 90 % non-condensing
- -------------------------------------------------------------------------------
        Thermal Shock               IEC 68-2-14
- -------------------------------------------------------------------------------
        Power Requirement           Power consumption: 150 watts, 110 / 220
                                    volts 50 - 60 Hz AC, - 48 volts DC.
- -------------------------------------------------------------------------------
                        TABLE 7 - WAVEXPRESS INDOOR BTS
</TABLE>

<PAGE>

4.2.8  TURBOWAVE/BTS TECHNICAL DETAILS
       Specifications of  TurboWAVE/BTS hardware are shown in Table 8.

<TABLE>
<CAPTION>

- -------------------------------------------------------------------------------
<S>                                 <C>
        Number of TRX per BTS       Up to 2 TRX per 4 watts TurboWAVE/BTS
- -------------------------------------------------------------------------------
                                    Up to 2 TRX per 8 watts TurboWAVE/BTS
- -------------------------------------------------------------------------------
        Tx Frequency Range          GSM900: 935 - 960 MHz
- -------------------------------------------------------------------------------
        Rx Frequency Range
                                    GSM900: 890 - 915 MHz
- -------------------------------------------------------------------------------
        Channel Spacing             200 KHz
- -------------------------------------------------------------------------------
        Antenna Power               Up to 4 watts with 2 TRX in 1 ant.
                                    operation
                                    Up to 8 watts with 2 TRX in 2 ant.
                                    operation
- -------------------------------------------------------------------------------
        Standards Supported         ETSI GSM Phase 2
- -------------------------------------------------------------------------------
        Features Supported          BTS; GSM RF management, data and fax,
                                    short message service, encryption,
                                    optional TRX and power supply redundancy,
                                    star and daisy chain configuration.
- -------------------------------------------------------------------------------
        Mobile Stations Supported   Any GSM-compliant mobile station (Phase 1
                                    and 2)
- -------------------------------------------------------------------------------
        Mobile Interface            GSM full-rate RF interface, 2400 - 9600
                                    bps transparent data and enhanced full
                                    rate capability.
- -------------------------------------------------------------------------------
        Trunk interface             G.703 compliant, E1.
- -------------------------------------------------------------------------------
        Dynamic Power Control       12 dB in 2 dB Step
- -------------------------------------------------------------------------------
        Receiver Sensitivity        Typical - 111 dBm
- -------------------------------------------------------------------------------
        Chassis Size                23 cm (width) x 65 cm (height) x 36 cm
                                    (depth)
- -------------------------------------------------------------------------------
        Weight                      Approx. 20 kg
- -------------------------------------------------------------------------------
        Volume                      81.9 liters
- -------------------------------------------------------------------------------
        Operating Temperature       0 (0)C to + 45 (0)C
- -------------------------------------------------------------------------------
        Humidity                    10 % to 90 % non-condensing
- -------------------------------------------------------------------------------
        Thermal Shock               IEC 68-2-14
- -------------------------------------------------------------------------------
        Power Requirement           Power consumption: 250 watts, 110 / 220
                                    volts 50 - 60 Hz AC, - 48 volts DC.
- -------------------------------------------------------------------------------
                            TABLE 8 - TURBOWAVE/BTS
</TABLE>

<PAGE>

4.2.9  WAVEXPRESS BSC TECHNICAL DETAILS
       Specifications of the WAVEXpress BSC hardware are shown in Table 9.
<TABLE>
<CAPTION>

- -------------------------------------------------------------------------------
<S>                                 <C>
        Number of E1 interfaces     Up to 16 E1 links per BSC
        per BTS
- -------------------------------------------------------------------------------
        BTS RF Protocols Supported  GSM 900; GSM1800
- -------------------------------------------------------------------------------
        GSM/PCS Interface           A and Abis
        Supported
- -------------------------------------------------------------------------------
        Standards Supported         ETSI GSM Phase 2
- -------------------------------------------------------------------------------
        Features Supported          Base Station Controller (BSC); GSM RF
                                    Power management, data and fax, short
                                    message service, optional CPU  and power
                                    supply redundancy, local TRAU integrated
                                    with Abis E1 card.
- -------------------------------------------------------------------------------
        Mobile Stations Supported   Any GSM-compliant mobile station (Phase 1
                                    and 2)
- -------------------------------------------------------------------------------
        Mobile Interface            GSM full-rate RF interface, 2400 - 9600
                                    bps transparent data and enhanced full
                                    rate capability.
- -------------------------------------------------------------------------------
        Trunk interface             G.703 compliant, E1.
- -------------------------------------------------------------------------------
        Chassis Size                23 cm (width) x 65 cm (height) x 36 cm
                                    (depth)
- -------------------------------------------------------------------------------
        Weight                      Approx. 20 kg
- -------------------------------------------------------------------------------
        Volume                      81.9 liters
- -------------------------------------------------------------------------------
        Operating Temperature       0 (0)C to + 45 (0)C
- -------------------------------------------------------------------------------
        Humidity                    10 % to 90 % non-condensing
- -------------------------------------------------------------------------------
        Thermal Shock               IEC 68-2-14
- -------------------------------------------------------------------------------
        Power Requirement           Power consumption: 150 watts, 110 / 220
                                    volts 50 - 60 Hz AC, - 48 volts DC.
- -------------------------------------------------------------------------------
                            TABLE 9 - WAVEXPRESS BSC
</TABLE>

<PAGE>

                                   SCHEDULE 2


                                  SCOPE OF WORK

<PAGE>

                                   SCHEDULE 2
                                   ----------

                 SCOPE OF SERVICE WORK AND INSTALLATION SERVICES
                 -----------------------------------------------

2.1    SCOPE OF SERVICE WORK

<TABLE>
<CAPTION>

<S><C>
- ----------------------------------------------------------------------------------------------------------------
 ITEM  DESCRIPTION OF              SCOPE OF RESPONSIBILITIES OF         SCOPE OF RESPONSIBILITIES OF LANKA
       RESPONSIBILITIES            interWAVE COMMUNICATIONS             CELLULAR SERVICES (PRIVATE)
                                   INTERNATIONAL LTD (IWC)              LIMITED. (LCS)
- ----------------------------------------------------------------------------------------------------------------
 A.     EQUIPMENT DELIVERY, IF CIF ARRANGEMENT IS ORDERED BY LANKA CELLULAR SERVICES (PRIVATE) LIMITED.
- ----------------------------------------------------------------------------------------------------------------
  1.   Preparation of Equipment    -      IWC is responsible for        -      LCS should provide details
       Import & Export                    supplying all product                for application of Export
                                          information, type approval           License of equipment from
                                          certificates for application         Department of Commerce,
                                          of Import License by Lanka           USA.
                                          Cellular Services (Private)
                                          Limited.                      -      LCS should be responsible
                                                                               for application of Import
                                   -      IWC is responsible for               License and all other
                                          filing the application of            relevant license for
                                          Export License to Department         equipment import, system
                                          of Commence, USA.                    installation and site
                                                                               construction.
- ----------------------------------------------------------------------------------------------------------------
  2.   Equipment delivery from IWC -      IWC will be responsible for   -      LCS is responsible for
       (USA) to LCS's warehouse in        delivering all equipment             checking the quantity of
       Colombo of Sri Lanka               ordered to the LCS's                 equipment against the
                                          warehouse in Colombo of Sri          package list.
                                          Lanka.
                                                                        -      LCS should sign and return
                                   -      IWC will provide packing             the delivery note to IWC if
                                          list and delivery note for           the quantity of equipment
                                          every shipment of equipment          is correct as well as
                                          to LCS.                              report the discrepancy
                                                                               immediately, if any.
- ----------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

<S><C>
- ----------------------------------------------------------------------------------------------------------------
 B.     ON-SITE SYSTEM INSTALLATION, COMMISSIONING AND INTEGRATION SERVICES, IF LCS ORDERS
- ----------------------------------------------------------------------------------------------------------------
  1.   Appointment of Project      -      IWC will delegate the         -      LCS should appoint the
       Manager                            project manager for the              site or project manager
                                          whole wireless access                for coordinating all
                                          project.                             necessary arrangement for
                                                                               executing all
                                   -      IWC will assign the                  installation,
                                          engineers for supervising            commissioning and
                                          and being the consultant for         integration activities.
                                          installation and network
                                          design of wireless access     -      LCS to confirm with IWC
                                          system, if LCS orders.               about the contact points
                                                                               for this project.
- ----------------------------------------------------------------------------------------------------------------
  2.   Site identification.        -      IWC should confirm and        -      LCS will determine the
                                          specify the documentation            site location and inform
                                          and information required for         IWC.
                                          completing the system design
                                          for each site, should LCS     -      LCS should provide one set
                                          orders support services from         of floor plan and site
                                          IWC.                                 drawings of each site to
                                                                               IWC.
- ----------------------------------------------------------------------------------------------------------------
  3.   Site survey.                -      IWC should specify the        -      LCS is responsible for
                                          environmental conditions             site acquisition, site
                                          required for proper                  preparation and all site
                                          installation of equipment            facilities provisioning.
                                          supplied.                            The facilities include
                                                                               utilities, grounding,
                                                                               weatherproofing,
                                                                               lightning,
                                                                               air-conditioning and site
                                                                               access.
- ----------------------------------------------------------------------------------------------------------------
  4.   RF requirements and system  -      IWC should confirm and        -      LCS should confirm the RF
       design criteria                    specify the requirements for         cabling design and other
                                          completing the system                limitations to IWC.
                                          design, should LCS orders
                                          support services from IWC.    -      LCS is responsible for all
                                                                               RF design, installation of
                                   -      IWC should specify the RF            cable and accessories
                                          cabling/connection                   required for normal
                                          requirements for proper              network operation.
                                          installation of IWC
                                          equipment.
- ----------------------------------------------------------------------------------------------------------------

<PAGE>

<S><C>
- ----------------------------------------------------------------------------------------------------------------
 5.    Site construction and RF    -      IWC will recommend the site   -      LCS is required to supply
       distribution construction          requirements and RF                  and install antenna,
                                          conditions as deemed                 feeder, jumper, hanger,
                                          necessary for normal                 grounding devices and
                                          operation of IWC Products            power splitter as well as
                                                                               other filtering devices,
                                                                               as deemed necessary for
                                                                               maintaining proper RF
                                                                               conditions for normal
                                                                               operation of IWC products.
- ----------------------------------------------------------------------------------------------------------------
  6.   Delivery of IWC Products                                         -      LCS to be responsible for.
       from LCS's warehouse to
       site
- ----------------------------------------------------------------------------------------------------------------
  7.   On-site hardware and        -      IWC will supervise hardware   -      LCS should prepare to make
       software installation,             installation of BTS, BSC,            the location available for
       commissioning and                  WXC, OMC for Cluster 1-3             installation.
       integration of IWC Products
                                   -      IWC be responsible for        -      LCS to responsible for all
                                          system software                      hardware installation
                                          commissioning and                    physical work for BTS,
                                          integration for BTS, BSC,            BSC, WXC, OMC for Cluster
                                          WXC, OMC for Cluster 1-3             1-3

                                                                        -      LCS to responsible for all
                                                                               hardware installation for
                                                                               BTS, BSC, WXC, OMC for
                                                                               Cluster 4-7

                                                                        -      LCS to responsible for all
                                                                               software commissioning,
                                                                               integration physical work
                                                                               for BTS, BSC, WXC, OMC for
                                                                               Cluster 4-7

                                                                        -      LCS should sign off the
                                                                               commissioning and
                                                                               integration test report
                                                                               and once the tests are
                                                                               passed according to
                                                                               commissioning (off-line)
                                                                               and integration (on-line
                                                                               commissioning) test
                                                                               procedure; and after which
                                                                               the system should be put
                                                                               into provisioning test
                                                                               phase

<PAGE>

<S><C>
- ----------------------------------------------------------------------------------------------------------------
  8.   Cell data, neighbor cell    -      IWC will perform database     -      LCS should prepare all the
       data and handover parameter        input for BTS, BSC, WXC, OMC         required data and
       for the new cell.                  for Cluster 1-3                      parameters in the WXC,
                                                                               BSC,BTS, OMC as specified
                                   -      IWC will provide on-site             by IWC for Cluster 1-3
                                          supervision, assistance and
                                          consultation for Cluster 4-7  -      LCS will perform database
                                          data fill process if LCS so          input for BTS, BSC, WXC,
                                          request.                             OMC for Cluster 4-7

                                   (TO BE QUOTED SEPARATELY)
- ----------------------------------------------------------------------------------------------------------------
  9.   E1 link application and     -      IWC to provide LCS the basic  -      As specified by IWC, LCS
       acceptance.                        acceptance criteria of E1            should supply, install,
                                          link, if requested.                  commission, maintain, and
                                                                               repair all transmission
                                                                               facilities, as deemed
                                                                               necessary for normal
                                                                               network operation.
- ----------------------------------------------------------------------------------------------------------------
  10.  Connection of on-site E1    -      IWC will supervise the
       port installed by LCS to           installation work for E1      -    LCS will connect and install
       the IWC Product                    connection at the switch           E1 link up the MDF point.
                                          centre and the E1 connection
                                          at each BTS site of the       -    LCS to supply jumper,
                                          first cluster if LCS so            connector cabling and other
                                          requires.                          accessories for connecting
                                   -      IWC will provide the correct       E1 links from the MDF to the
                                          E1 connection method to IWC        connectors of IWC Products
                                          Product.                           at each site and location.
- ----------------------------------------------------------------------------------------------------------------
  11.  Connection of RF feeder     -    IWC will provide advise on the  -    LCS will supply all required
       connector to the                 correct RF connection method         coaxial cable, connectors
       WAVEXpress/BTS                   to IWC products                      and accessories for each and
- ----------------------------------------------------------------------------------------------------------------

<PAGE>

<S><C>
- ----------------------------------------------------------------------------------------------------------------
                                                                             prepare proper super-flex
                                   -    IWC will advise on the VSWR          cable and connectors.
                                        and other RF requirements for
                                        IWC Products.                   -    LCS is responsible for
                                                                             connecting IWC Products with
                                                                             RF distribution required.

                                                                        -    LCS is responsible for
                                                                             maintaining the VSWR quality
                                                                             for all RF connection as
                                                                             specified by IWC
- ----------------------------------------------------------------------------------------------------------------
  12.  Pre-paid system             -    IWC will perform the            -    LCS will determine the
       installation commissioning       installation work of Prepaid         subscriber, tariff related
       and integration.                 System                               and routing information on
                                                                             the list that IWC provided
                                   (TO BE QUOTED SEPARATELY)            -    LCS should sign off the
                                                                             commissioning and
                                   -  IWC will  perform the software         integration test report and
                                      commissioning and integration of       after which the system could
                                      Prepaid System                         be puts into provisioning
                                                                             test phase
                                   (TO BE QUOTED SEPARATELY)
- ----------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

<S><C>
- --------------------------------------------------------------------------------------------------------------------------------
 C.     MAINTENANCE AND OPERATION SUPPORT, IF LCS ORDERS.
- --------------------------------------------------------------------------------------------------------------------------------
  1.   On-site technical           -      IWC on-site engineer is       -      LCS is responsible for
       consultant                         responsible for providing            providing enough manpower
       (if purchased)                     advice on daily operation,           as specified by IWC to
                                          maintenance and fault                perform proper trouble-
                                          restoration for the IWC              shooting activities for
                                          network equipment.                   S1, S2 and S3 cases.

                                   -      IWC on-site engineer is       -      LCS is responsible for
                                          responsible for coordinating         providing necessary
                                          with Regional TAC and                trouble-shooting
                                          advising the trouble-                resources: such as test
                                          shooting activities of S1,           equipment, telephone line,
                                          S2, and S3 problems in the           IDD facilities, modem and
                                          period of 24 hours a day and         transportation to assist
                                          7 days a week.                       the IWC on-site engineers
                                                                               to perform the necessary
                                   -      IWC on-site engineer is also         trouble-shooting and fault
                                          responsible for conducting           restoration activities
                                          regular technical review
                                          with LCS                      -      LCS is responsible for
                                                                               coordinating and
                                   -      IWC to recommend the                 performing all necessary
                                          procedures and scope of the          system changes, such as
                                          regular preventive network           transmission, E1 equipment
                                          maintenance, if required by          facilities, power
                                          LCS.                                 facilities, parameter
                                                                               changing and others as
                                   -      IWC on-site engineering              specified by IWC engineers
                                          consultant will supervise            in order to assist the
                                          the hardware installation            trouble-shooting
                                          work for cluster WXC, OMC,           activities
                                          BSC, BTS installation work
                                                                        -      LCS could specify any
                                                                               particular requirements
                                                                               for the monthly preventive
                                                                               maintenance, if necessary,
                                                                               and should assist IWC to
                                                                               coordinate and conduct the
                                                                               preventive maintenance
                                                                               required.
- --------------------------------------------------------------------------------------------------------------------------------

<PAGE>

<S><C>
- --------------------------------------------------------------------------------------------------------------------------------
  2.   Daily OMC-R operation       -      IWC on-site engineer is       -      LCS is required to monitor
                                          responsible for providing            the system and alarm status
       (if on-site technical              advice on daily operation            through the OMC system.
       consultant option is               and maintenance, if                  LCS should inform IWC on-
       purchased)                         necessary.                           site engineer if there is
                                                                               any fault alarm or event.

                                                                        -      If there are other
                                                                               activities, such as power
                                                                               outage, relocation of
                                                                               transmission line, upgrade,
                                                                               patching,  etc., affecting
                                                                               the overall network
                                                                               performance, LCS is
                                                                               required to notify IWC as
                                                                               to allow IWC to advise the
                                                                               precaution required.
- --------------------------------------------------------------------------------------------------------------------------------
  3.   Off-site 24 hours           -      IWC will provide technical    -      LCS is responsible for coordinating
       emergency Level 2 support          telephone consultancy in             and performing suitable fault diagnostics,
                                          relation to system recovery,         fault isolation or system recovery action on IWC
       (Please refer to Section 7         alarms, events and system            equipement after the initial discovery of
       of this Agreement)                 performance. However, IWC            problematic situation.
                                          will, in normal practice,
                                          not provide consultancy
                                          relating to normal day to
                                          day system operation, which
                                          is well covered by the user
                                          manual.                       -      LCS is responsible for reporting all faults
                                                                               to interWAVE Regional TAC (Technical Assistance
                                   -      IWC will provide all year            Centre) via emial ina way specified by Regional
                                          round emergency telephone            TAC.
                                          support for system
                                          restoration for those S1 and
                                          S2 cases.
                                                                        -      LCS is responsible for coordinatin,
                                   -      IWC will provide response            performing suitable action on non-IWC
                                          for S3 issues                        equipement as advised by IWC for the
                                          electronically.                      purpose of fault recovery and bug isolation.

                                   -      IWC will follow up and trace
                                          the root cause of S1, S2 and  -      LCS is responsible for providing the necessary
                                          S3 events for identifying            manpower to perform fault
                                          long term solution.  This            recovery, fault isolation and solution
                                          includes patches, point
                                          release, full
- --------------------------------------------------------------------------------------------------------------------------------

<PAGE>

<S><C>
- --------------------------------------------------------------------------------------------------------------------------------
                                          software release or new              application activities as advises by IWC
                                          feature request.

                                   -      IWC will supply the           -      LCS is responsible for providing as much
                                          solution, in forms of                information as possible to IWC in order
                                          patches or software, to the          to establish the TR report system in order
                                          problems so that IWC could           to log down all these S1,S2 and S3 cases.
                                          remotely apply to the system
                                          or applying the solution
                                          locally with the assistance
                                          from LCS engineer

                                   -      IWC will perform regular
                                          system problem review with
                                          customer based on TR reports

- --------------------------------------------------------------------------------------------------------------------------------
  4.   Monthly system performance  -      IWC is required to attend     -      LCS should be responsible for compiling,
       report and project meeting         the monthly meeting to               updating and submitting regular report to
                                          discuss the system                   IWC on project progress, all system
                                          performance, system recovery         parameters, cell data and system
                                          and project progress.                performance statistics, quality issues,
                                                                               stock level of spare parts so that IWC
                                   -      IWC is required to provide           could help to provide recommendation.
                                          feedback and solution to the
                                          action points required from
                                          the monthly system report.
                                                                        -      LCS is responsible for coordinating the
                                                                               monthly meeting.

                                                                        -      LCS is required to refill the spares stock
                                                                               if LCS deem necessary.
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>

2.2    SCOPE OF INSTALLATION, COMMISSIONING AND INTEGRATION WORK

<TABLE>
<CAPTION>

<S><C>
- --------------------------------------------------------------------------------------------------------------------------------
 SYSTEM SOFTWARE INSTALLATION AND COMMISSIONING ENGINEERING SERVICES IN SRI LANKA, INCLUDING THE
 FOLLOWING SCOPE OF SERVICES:
- --------------------------------------------------------------------------------------------------------------------------------
  1.   Software installation and commissioning for WAVEXpress/BTS, TurboWAVE/BTS, WAVEXpress/BSC,
       WAVEXpress/WXC, and WAVEView OMC-R/S (IF PURCHASED PER SECTION 3.2 OF THIS AGREEMENT)
- --------------------------------------------------------------------------------------------------------------------------------
       a.     Advise on the required system software, configuration data and parameter set-up as
              necessary for software installation and commissioning as well as system integration

       b.     Perform on software commissioning and integration configuration work of OMC Server,
              Workstations, WXC, BSC, and BTS system for first 3 cluster. (AS QUOTE PER SECTION 3.2 OF
              THIS AGREEMENT)

       c.     Responsible for software and system integration for OMC, WXC, BSC, BTS systems of first 3
              cluster (AS QUOTE PER SECTION 3.2 OF THIS AGREEMENT)

       d.     Supply generic test commissioning (off-line) and integration (on-line) procedures and
              sign-off document for IWC systems,

       e.     Provide advise on the installation, commissioning and integration report format
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

<S><C>
- --------------------------------------------------------------------------------------------------------------------------------
 SYSTEM HARDWARE INSTALLATION ENGINEERING SERVICES IN SRI LANKA, INCLUDING THE FOLLOWING SCOPE OF
 SERVICES:
- --------------------------------------------------------------------------------------------------------------------------------
  2.   Supervision on System Hardware Installation Services for WAVEXpress/BTS, TurboWAVE/BTS,
       WAVEXpress/BSC, WAVEXpress/WXC, and WAVEView OMC-R/S, including the following scope of services:
       (AS QUOTE PER SECTION 3.2 ON-SITE ENGINEERING CONSULTANT SUPPORT OF THIS AGREEMENT)
- --------------------------------------------------------------------------------------------------------------------------------
       a.     Advise on the environmental and electrical condition for installation of WAVEXpress/BSC,
              WAVEXpress/WXC, Turbo/BTS; WAVEView OMC and Pre-paid systems

       b.     Supply the procedures and test criteria for transmission line connection with
              WAVEXpress/BSC, WAVEXpress/WXC, WAVEXpress/BTS, WAVEView OMC

       c.     Supervise hardware installation for WAVEXpress/BSC, WAVEXpress/WXC, Turbo/BTS; WAVEView OMC
              of the cluster 1-3 (AS QUOTE PER SECTION 3.2 ON-SITE ENGINEERING CONSULTANT SUPPORT FOR THE
              CLUSTER 1-3 PERIOD OF THIS AGREEMENT)

       d.     Supply documentation and procedures on system hardware installation and provide advise on
              the installation report format
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>


Remarks:        1. Installation services exclude installation for following
                networks, such as LAN or WAN computer network, dial-up line,
                console or similar furniture.

       2.     Additional charge is involved for requiring IWC engineers to
              assist in installing and integrating IWC equipment for clusters
              4-7

<PAGE>

                                   SCHEDULE 3


                         INITIAL ACCEPTANCE CERTIFICATE

<PAGE>

                                   SCHEDULE 3

INTERWAVE

                         INITIAL ACCEPTANCE CERTIFICATE

    THIS IS TO CERTIFY THE INTERWAVE WAVEXPRESS WXC, BSC, BTS AND OMC SYSTEM
                                  DELIVERED BY:

                   INTERWAVE COMMUNICATIONS INTERNATIONAL LTD.


                                       TO


                      LANKA CELLULAR SERVICES (Pvt) LIMITED


                  IS ACCEPTED BY THE PURCHASER AND THE END USER


                                     DUE TO


                 ACCEPTANCE TESTS CASES CARRIED OUT SUCCESSFULLY
 ACCORDING TO THE "INITIAL ACCEPTANCE TEST PLAN" STATED IN THE ANNEX OF SCHEDULE
 3 AND IS NOW OPERATIONAL IN ACCORDANCE WITH THIS PLAN TO THE SATISFACTION OF
                          ALL PARTIES CONCERNED NAMELY
                    LANKA CELLULAR SERVICES (Pvt) LIMITED AND
                   INTERWAVE COMMUNICATIONS INTERNATIONAL LTD.




DATE:
      ----------------------

FOR AND ON BEHALF OF :                    FOR AND ON BEHALF OF:
INTERWAVE COMMUNICATIONS                  LANKA CELLULAR
INTERNATIONAL LTD.                        SERVICES (Pvt) LTD







- ---------------------------               --------------------------------
NAME :                                    NAME:
TITLE:                                    TITLE:

<PAGE>

                                   SCHEDULE 4


                             CUSTOMER ADVOCACY PLAN


<PAGE>


                                   SCHEDULE 4


                  CUSTOMER ADVOCACY PLAN (LEVEL 2 SUPPORT PLAN)

1.0    PURPOSE

       The purpose of this procedure is to describe the method and timeframe for
       escalating problems based upon the severity level and potential impact to
       the customer network, as reported by Lanka Cellular Services (Private)
       Limited (thereafter called "LCS")

2.0    SCOPE

       The procedure covers the process, which connects the Regional Level 2
       support offices in HK (thereafter called "Regional TAC") to the
       headquarters' operation and escalation to the HQ operation in Redwood
       City (thereafter called "Corporate TAC").

3.0    RESPONSIBILITY

       It is the responsibility of the Regional TAC manager to manage the
       overall call escalation process and ensure that the procedures for
       escalation are adhered to by the company.  It is the responsibility of
       the Regional TAC managers to insure that the cases are properly
       classified upon initial diagnosis by the case manager and then
       notification is sent to the Corporate TAC.

4.0    LEVEL 2 SUPPORT

       4.1    During the Support Period, the Regional TAC will provide a 24
              hours, 7 days hotline service to LCS to handle the requests for
              2nd Level Support

       4.2    On receiving of a TR report (the trouble report) from LCS,
              Regional TAC will start analyzing the TR and the associate
              severity/case/problem; and if deemed appropriate, a corresponding
              Scopus case will be opened and a Scopus case number will be
              allocated. The LCS can then use the TR number in all
              communications regarding the fault report.  LCS needs to supply
              their LCS TR number to Regional TAC for reference. This TR that
              LCS raised per each request to Regional TAC will be sent by soft
              copy to HK via emailing to [email protected]. Regional TAC will
              then answer those TR from LCS.

       4.3    The investigation will be conducted by the Regional TAC on
              receiving an emergency telephone call or TR reported by the LCS.
              The severity of the case will also be determined. Further, if such
              an investigation reveals an error, defect or malfunction in the
              software, the Regional TAC will ensure the problematic system
              return to service by using of a temporary solution, acceptable to
              the LCS (that is, a "workaround").

       4.4    If Regional TAC could not provide a "workaround" to the problem
              within the specific hours defined in Section 4.12, then the
              problem will be escalated to

<PAGE>

              Corporate TAC Support for further analysis. Please see section
              4.12 for more information.

       4.5    Local user or customer will ONLY called the emergency support
              telephone no. (that LCS has provided to subscriber), but NOT
              Regional TAC emergency telephone. This customer emergency support
              telephone number will be automatically routed back to LCS. LCS
              engineer will determine emergency and that on emergency they will
              call Regional TAC with a designated Regional TAC telephone number:
              93793981  (24 hours, 7 days per week) This will be mainly related
              to S1 and S2 issues. For S3 issues, LCS will send email to
              Regional TAC at designated email address.

       4.6    Regional TAC will call back to designated caller. The caller will
              be a LCS engineer and he will be responsible for including the
              appropriate LCS personnel into the conference call with Regional
              TAC. In most case it is assumed LCS engineer will be involved in
              the conference call. Regional TAC could also call LCS number
              (?????????) in cases Regional TAC would like emergency contact to
              LCS (for example, may be the caller is busy on telephone)

       4.7    If the working period has been passed and that the issue has not
              been solved or no "workaround" is available; this issue will be
              escalated to the next level of support in RWC: i.e. the Level 3;
              following the escalation procedure in Section 4.12. In case there
              is an urgent requirement to contact L3, Regional TAC may contact
              L3 support earlier for even faster resolution.

       4.8    If during the working period, there is a need for Regional TAC to
              remote accessing the OMC/BSC/BTS/WXC/Combo, or performing some
              destructive maintenance action; then this request for access or
              action will be made to the customer; via the responsible
              caller/LCS engineer.

       4.9    LCS and the Regional TAC will keep each other informed of the
              progress in resolving any fault, via regular communications.

       4.10   Visit to the LCS/Customer's sites by Regional TAC engineer for the
              purpose of investigation or fault resolution will need to be
              agreed separately between LCS and interWAVE.

       4.11   LCS/Regional TAC should agree on the severity level of the call
              using the following guideline.

       S1     EMERGENCY            System or network is down and unusable as a
                                   result of a problem which causes failures, or
                                   results in severe intermittent operations
                                   with no customer acceptable work-arounds, or
                                   the customer states the problem has a
                                   critical impact on their operation.

       S2     SIGNIFICANT          System or network is up and will run,
                                   however, the problem exists with impact
                                   significant impact and which has difficult or
                                   no work-arounds causing substantial
                                   performance degradation, or prevents the
                                   customer from using a critical feature of the
                                   product or the system.

<PAGE>

       S3     LIMITED IMPACT       System or network is up and running but minor
                                   problems exist having limited impact.
                                   Customer can use the system or product with
                                   limitation or workarounds that are not
                                   critically impacting the overall operations.
                                   This could be a non-problematic information
                                   issue.

       S4     RMA                  Logging a request for a return Material
                                   authorization.

       S5     ENHANCEMENT          Required for a new product or feature.  This
                                   is used by both The Customer Advocacy
                                   function and Marketing to prioritize future
                                   releases(includes documentation).

       S6     INFORMATIONAL        Will be used for fulfilling Customer Requests
                                   for information in the future.

       4.12   Escalation Table

       If Regional TAC could not provide a "workaround" to the problem within
       the specific hours defined in the following table depend on severity, the
       problem will escalate to Corporate TAC Support for further analysis.

<TABLE>
<CAPTION>

         ------------------------------------------------------------------------------------------
            SEVERITY    INITIAL RESPONSE    LEVEL 2 REGIONAL     CORPORATE TAC       ENGINEERING
                         (VIA TELEPHONE)    TAC ESCALATE TO
                                             CORPORATE TAC
         ------------------------------------------------------------------------------------------
<S>                    <C>                 <C>                <C>                  <C>
               S1      15 Minutes          T0 + 4 hours       T0 + 12 hours        T0 + 24 hours
         ------------------------------------------------------------------------------------------
               S2      15 Minutes          T0 + 24 hours      T0 + 36 hours        T0 + 48 hours
         ------------------------------------------------------------------------------------------
               S3      Next Working Day    T0 + 72 hours      T0 + 120 hours       T0 + 168 hours
         ------------------------------------------------------------------------------------------
         T0 = time of receipt of initial call
</TABLE>

       The initial response is defined as the time it takes from the time the on
       call engineer is contacted via phone until the time the call is returned.

5.0    COMMUNICATION

<PAGE>

       The Regional TAC will only receive the support call from LCS.  The
       Regional TAC may be contacted by

<TABLE>
<CAPTION>

         ---------------------------------------------------------------------
<S>                                         <C>
          Regional TAC 2nd Line  Support    +852 9379-3981
          Telephone:
         ---------------------------------------------------------------------
          Regional TAC Support Manager      +852 9379-3983
          Telephone:
         ---------------------------------------------------------------------
          Fax: (S3 Case)                    +852 2519-9033
         ---------------------------------------------------------------------
                                            Attn.:  Amos Mak / Aaron Lee
         ---------------------------------------------------------------------
          Email Address: (S3 Case)          [email protected]
         ---------------------------------------------------------------------
</TABLE>

          Lanka Cellular Services (Private) Limited may be contacted by

<TABLE>
<CAPTION>

         ---------------------------------------------------------------------
<S>                                         <C>
           LCS Emergency Support             +94 7 863-2077 or +94 7 866-0021
                                             Attn.:  Rasika Perera
         ---------------------------------------------------------------------
           LCS Reply Email Address:          [email protected]
         ---------------------------------------------------------------------
</TABLE>

6.0    PATCH DELIVERY

       All patches will be created from interWAVE Redwood City. Regional TAC can
       then access the patches from an internal interWAVE database. This applies
       to both emergency and non-emergency cases. The patch will be further
       prepared and validated in interWAVE HK  for the specific site environment
       or issues.

       Regional TAC will then send the final resolution patch  to LCS, at the
       designated email address; after the patch has been made ready/validated
       in Regional TAC in Hong Kong.

       The patch will only be regarded as "ready to be used by LCS" when LCS has
       received a final green signal from Regional TAC, via phone call or email.

       LCS will be responsible for establishing the most suitable choice of
       transmission medium with the local customer for the transmission of
       patch.

       Depending on the outcome of discussion, the patch will then be ultimately
       delivered to appropriate location; via the designated caller/LCS
       engineer. Regional TAC will also assist LCS to achieve this.

7.0    ACCESS TO OMCR

<PAGE>

       The Regional TAC will need to have dial-up access to the customer's OMCR
       to permit remote fault analysis.

       LCS will take step to negotiate with local customer, via LCS project
       control for the modem telephone number and modem facilities set up. LCS
       would also need to supply Regional TAC the password and  user name on the
       designated interWAVE  OMCR  machine for the purpose of remote system
       diagnosis.

<PAGE>



                               ANNEX TO SCHEDULE 4
                               -------------------
                    SYSTEM MAINTENANCE AND SUPPORT AGREEMENT
                    ----------------------------------------
                                DATED: [       ]
                                ----------------

BETWEEN:

(1)    LANKA CELLULAR SERVICES (PVT) LIMITED of 4th Floor, 1119 Maradana Road,
       Colombo 8, Sri Lanka ("The Purchaser"); and

(2)    interWAVE COMMUNICATIONS INTERNATIONAL LTD. of  Codan Services, Claredon
       House, Church Street, Hamilton HM DX, Bermuda ("the Contractor").

WHEREAS:

A.     By an agreement between The Purchaser and the Contractor of even date
       herewith, the Contractor agreed to supply the Work ("the Contract").

B.     The Contractor has agreed to support and maintain the First Delivery and
       the Initial System, if the Purchaser so deploy and, subject to the
       exercise of the Option, the Expansion System, on the terms set out
       herein.

1.     TERMS

       Terms defined in the Contract shall, except as expressly provided
       to the contrary herein, bear the same meanings herein as they bear
       under this maintenance agreement.

2.     SCOPE

       The Contractor agrees to provide support and maintenance of the First
       Delivery, the Initial System and, if the Purchaser so deploy, the
       Expansion System in Sri Lanka, on the terms and conditions herein
       contained.

3.     TERM AND RENEWAL

3.1    Subject to earlier termination under Clause 7, the support and
       maintenance services to be provided hereunder with respect to the First
       Delivery and the Initial System, the Expansion System, if The Purchaser
       so deploy shall commence from the first site of acceptance, and in
       respect of the Expansion System (upon exercise of the Option) shall begin
       on The Purchaser in-service date and shall terminate in each case one
       year

<PAGE>

       thereafter with respect to each unless renewed in accordance with Clause
       3.2 ("Initial Term").

3.2    The Purchaser may, at its option, extend this Agreement for further
       successive periods of one (1) year each, by giving notice in writing to
       The Contractor not less than 45 days prior to the expiration of the
       Initial Term, or any such subsequent period.

4.     FEES AND PAYMENTS

4.1    Subject to Clause 4.2, maintenance and support during the Initial Term
       shall be provided in part consideration of the payments to be made by The
       Purchaser to The Contractor under The Contract and no additional charges
       shall be payable hereunder.

4.2    The fees payable to The Contractor in the first year immediately
       following the expiry of the Initial Term for services described herein
       shall, in respect of the First Delivery, the Initial System and the
       Expansion System, if The Purchaser so deploy (in the latter case, upon
       exercise of the Option), be fixed at the price specified in Attachment
       II, thereafter, by agreement between The Purchaser and The Contractor.

4.3    FEES AND PAYMENTS

       Fees and Payment shall be payable as follows:

       (a)    Maintenance and support during the Initial Term referred to above
              shall be provided in accordance with Attachment I.

       (b)    Fees after the Initial Term, shall be invoice in equal quarterly
              installments paid at the end of the quarter and shall be pro-rated
              with respect to any quarter in which services were provided during
              only a portion of such quarter.

       (c)    Payments shall be made by The Purchaser in U.S. dollars within
              fourteen (14) days from date of invoice.

4.4    THE PURCHASER'S RESPONSIBILITIES

       The Purchaser shall:

       Provide experienced technical personnel capable of assuming the following
       operations responsibilities:

       (a)    Monitoring the BSS operation on a 24-hour basis and calling The
              Contractor hot-line when improper functions are observed.

       (b)    Investigating and verifying subscriber complaints.

       (c)    Responding to service requests from subscribers, verifying
              subscriber database information.

<PAGE>

       (d)    Performing all administrative tasks associated with BSS equipment
              logs.

       (e)    The Purchaser personnel will perform subscriber data file backup.

       (f)    Produce performance report to be agreed between The Purchaser/The
              Contractor.

4.5    CONTRACTOR SERVICE LIMITATIONS

       (a)    Service does not include installation of BSS system expansions.

       (b)    Service will not include: normal system operator and operating
              responsibilities; the provision of operating supplies; electrical
              work external to the BSS; or any other functions not specifically
              defined as BSS remedial or preventive maintenance.

5.     ON-SITE MAINTENANCE

5.1    CONTRACTOR RESPONSIBILITIES

       The Contractor agrees to perform the following services on Site or
       at such other place as from time to time advised by The Purchaser
       and shall comply with the following obligations during the term of
       this Agreement:

       (a)    The Contractor shall provide to The Purchaser remedial
              maintenance including the diagnosis and correction of
              System errors, malfunctions and failures, as follows:

              (i)    The Contractor shall provide on-call emergency
                     remedial repair service ("RR") 24 hours a day, 7
                     days a week, 365/366 days a year for the System.
                     The Contractor's response to any major problem
                     affecting service (as determined in The Purchaser's
                     reasonable opinion) shall be within one (1) hour
                     following a telephone call from The Purchaser to the
                     Contractor's service representative (The Purchaser
                     acknowledges that prior to the making of such a
                     telephone call to The Contractor, it shall first
                     attempt to remedy the problem being complained of).
                     If the Contractor's service representative
                     determines that the service affecting problem cannot
                     be fixed remotely or through The Purchaser staff on
                     site, then The Contractor must provide on site
                     remedial repair service within 1-1/2 hours of that
                     determination which shall be made by The Contractor
                     as quickly as reasonably possible;

              (ii)   The Contractor shall provide on-site RR for
                     service-affecting problems unless The Purchaser requests
                     otherwise.

<PAGE>

       (b)    The Contractor shall provide at its own expense all labour and
              parts which are necessary for providing the services required
              hereunder. Only new, or like new parts which are equivalent to new
              in performance will be used in providing such services. Defective
              items shall be repaired or replaced with non-defective items
              within ten (10) business days of receipt of defective Equipment or
              Software by The Contractor, except where the defect causes system
              down time or impacts on System performance in which case the
              repair or replacement must be provided forthwith within four (4)
              hours after request.

       (c)    The Contractor shall provide scheduled preventive maintenance
              ("PM") based on the specific needs of the Equipment as reasonably
              determined by The Contractor.

       (d)    The Contractor shall arrange for service materials, tools,
              documentation, diagnostics and test equipment necessary for
              Preventative Maintenance ("PM") and RR.  The Contractor shall
              retain title to all such items utilized by The Contractor to
              perform its obligations hereunder.  The Contractor shall ensure
              all the works done are carried out by duly qualified Maintenance
              Personnel.  The Contractor shall provide and update a complete
              list of all such duly qualified Maintenance Personnel who are
              likely to provide any services to The Purchaser under this
              Agreement.

       (e)    The Contractor shall review alarm log and system status
              messages and initiate corrective action when required by
              The Purchaser.

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

       (g)    The Contractor shall review Quarterly preventive maintenance
              schedule with The Purchaser and co-ordinate activities with The
              Purchaser's Customer Service Group in order to minimize service
              impacts.

       (h)    The Contractor shall compile a maintenance and preventive
              maintenance procedures manual for all equipment, in a form
              reasonably acceptable to The Purchaser.

       (i)    The Contractor shall assist The Purchaser's Customer
              Service Group in evaluating the maintenance and preventive
              maintenance activities in terms of impact and potential
              benefit to subscriber service.

       (j)    The Contractor shall provide on-going advice on and adherence to
              fault escalation, co-ordination and security procedures in order
              to minimize service impact and maximize maintenance efficiency.

       (k)    The Contractor shall consult with The Purchaser annually regarding
              The Contractor's scope of responsibilities under this Agreement
              and the demarcation of responsibility between The Contractor and
              The

<PAGE>

              Purchaser's support teams with the objective of improving overall
              subscriber service and maintenance and operations efficiency.
       (l)    The Contractor shall participate as reasonably required by
              The Purchaser in the preparation of The Purchaser's
              disaster prevention, contingency and recovery plans and
              procedures in area which are related to maintenance.

       (m)    The Contractor shall arrange insurance coverage for The
              Contractor's staff and contractors, including labour
              compensation coverage for The Contractor's personnel when
              they are attending The Purchaser's premises.

       (n)    The Contractor shall keep the Site environment tidy and
              clean at all times.  The Contractor shall clear out any
              debris or unused material off the Site after completion of
              any works.

       (o)    The Contractor shall, when entering the Site environment, not
              cause any nuisance to the community of the nearby areas.

       (p)    The Contractor shall prepare and give to The Purchaser a
              list of all maintenance personnel who may perform work
              under this Agreement, who shall be subject to the approval
              of The Purchaser (not to be unreasonably withheld) for the
              purpose of granting such personnel access to the Site to
              perform Work.

       (q)    Where any maintenance or other service is undertaken by remote
              access by The Contractor, The Contractor shall follow such
              procedures as The Purchaser shall in its absolute discretion
              consider appropriate including without prejudice to the generality
              of the foregoing, the registration with The Purchaser of all
              persons requiring access together with their identification
              numbers for log in purpose.  The Purchaser shall advise The
              Contractor of the password to be used for such purposes and access
              shall be by confidential password.  The Contractor shall be wholly
              responsible for and bear the risk of all access using such
              procedure and The Purchaser shall be under no obligation to make
              further inquiry as to the authority of the person accessing the
              system.  The Contractor shall be responsible for maintaining the
              security of the System and ensure that access is protected by such
              secured ID system permitting access only to  the Contractor's
              authorized personnel.  The Contractor is responsible for all
              aspects of such remote accessing procedure and hereby indemnifies
              The Purchaser against any costs, claims, damages, loss or expenses
              that it may suffer or incur as a result thereof.

       (r)    The Contractor shall indemnify The Purchaser from and
              against any and all damage or loss occurring to the Site,
              the System, or The Purchaser's facilities whether directly
              or indirectly, arising as a result of work performed under
              this Agreement.

       (s)    The Contractor shall provide adequate technical training
              and technology transfer of the System to The Purchaser.

<PAGE>

5.2    WARRANTIES

       Without limiting the provision of the Contract or the above
       provisions, The Contractor shall replace, make good or rectify any
       Equipment or Software which does not comply with the Warranties
       set out in Clause 7 of the Contract.

6.     WARRANTIES AND CONDITION OF SERVICE

6.1    Without limiting the warranties and undertakings provided in The
       Contract, The Contractor warrants that all Work performed hereunder will
       be performed in a professional and workmanlike manner.

6.2    The Contractor's obligation to provide service hereunder shall not extend
       to faults caused by:

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

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

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

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

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

6.3    The Contractor will be under no obligation to furnish any Software
       Support included in the Schedule(s) under this Agreement if in
       Contractor's option,

       (a)    the Software has been altered or modified by other than The
              Contractor or the Contractor's representatives;

       (b)    the Software has been superseded by a new release and such release
              has been made available to The Purchaser by The Contractor; and

       (c)    Software errors have been caused by The Purchaser's negligence.

<PAGE>

7.     DEFAULT

7.1    In the event that either party defaults in the performance of any of its
       obligations set forth in this Agreement and the default remains uncured
       for a period of thirty (30) days after receipt by such party or written
       notice from the other party, then the injured party, in addition to any
       other rights available to it under law, may terminate this Agreement at
       any time by giving notice in writing to the defaulting party.

7.2    If The Contractor becomes insolvent or enters into any liquidation or
       insolvency proceedings, has a receiver, manager, administrator, trustee
       or similar officer appointed or has a resolution passed or an order made
       against it for winding up or if a winding-up petition is issued or if any
       composition or arrangement with its creditors is made, or if it is unable
       to pay its debts or has any execution or attachment levied in respect of
       any of its assets which is not discharged within 30 working days, The
       Purchaser shall be entitled forthwith to terminate this Agreement without
       notice or compensation to the Contractor.

7.3    The Purchaser may terminate this Agreement forthwith in the event that
       The Contract terminates for any reason.

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

8.     COVENANT NOT TO EMPLOY

       The Purchaser and The Contractor agree that during the term of
       this Agreement and for a period of six (6) months thereafter,
       neither The Purchaser nor The Contractor shall directly solicit
       for the purpose of employment in relation to performance of
       maintenance of the System any employee of The Purchaser or The
       Contractor involved in the performance of System maintenance.  If
       at any time this provision is found to be overly broad under the
       laws of an applicable jurisdiction, then this provision shall
       deemed to be deleted from this Agreement and both parties shall
       negotiate in good faith in order to agree the terms of a mutually
       satisfactory provision to be substituted for this provision found
       to be void or unenforceable.

9.     ENTIRE AGREEMENT

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

<PAGE>

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

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

10.    APPLICABLE LAW

10.1   This Agreement shall be interpreted, construed and governed by the laws
       of England and the parties hereto submit to the non-exclusive
       jurisdiction of the English courts.

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



Lanka Cellular Services (Private) Limited        interWAVE Communications
                                                 International, Ltd.
- -------------------------------------------------------------------------------


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

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

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

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

IN THE PRESENCE OF:
- -------------------

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

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

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

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

<PAGE>

                                   SCHEDULE 5

                  CONFIDENTIALITY AND NON-DISCLOSURE AGREEMENT

<PAGE>

                                   SCHEDULE 5

                  CONFIDENTIALITY AND NON-DISCLOSURE AGREEMENT

       This Agreement is entered into effective as of the ______ day of
December, 1999 between Lanka Cellular Services (Pvt) Limited , a Sri Lanka
corporation with offices at 4th Floor, 1119 Maradana Road, Colombo 8, Sri Lanka
and interWAVE Communications International, Ltd. located in Bermuda.

       WHEREAS, the Parties contemplate entering into a contract for the supply
of certain equipment and software for the installation of a micro-cell base
station system (the "Contract"); and

       WHEREAS, the Parties may need or want to disclose certain Information to
each other on a confidential basis in connection with their discussions
regarding or in anticipation of such business arrangements;

       NOW THEREFORE, in consideration of the disclosure of Proprietary
Information (as defined herein) by either Party, the Parties agree as follows:

       1.            As Used Herein:

              "Information" is defined as communications or data including, but
       not limited to, business information, marketing plans, technical or
       financial information, customer lists or proposals, sketches, models,
       samples, computer programs and documentation, drawings, specifications,
       whether conveyed in oral, written, graphic, or electromagnetic form or
       otherwise.

              "Party" is defined as either entity executing this Agreement and
       any subsidiary, division, affiliate, or parent company of such entity.

              "Proprietary Information" is defined as that Information owned or
       possessed by either Party that the said Party desires to protect as
       confidential against unrestricted disclosure or improper competitive use,
       and that is designated as such in the manner provided by this Agreement.

       2.     All Information that is disclosed by one Party ("Disclosing
       Party") to the other ("Receiving Party") and that is to be protected
       hereunder by the Receiving Party as Proprietary Information if in writing
       or other tangible form, shall be conspicuously labeled as "proprietary",
       "confidential" or with words of similar import at the time of delivery.

       3.     Proprietary Information of the Disclosing Party shall remain the
       property of the Disclosing Party.  Proprietary Information of the
       Disclosing Party shall be treated and safeguarded hereunder by the
       Receiving Party for a period of two (2) years from the date of
       disclosure.  The Receiving Party warrants that it applies reasonable
       safeguards against the unauthorized disclosure of Proprietary Information
       and that it

<PAGE>

       will protect such Proprietary Information at least as securely as it
       protects its own Proprietary Information.

       4.     The Receiving Party agrees that (i) the documents provided to the
       Receiving Party hereunder containing Proprietary Information of the
       Disclosing Party shall be used by the Receiving Party solely for the
       purpose of evaluating its interest in the business arrangements described
       or performing a future agreement between the Parties; (ii) it will not
       use such documents disclosed hereunder for any other purpose; and (iii)
       it will not distribute, disclose or disseminate Proprietary Information
       to anyone except its employees with a need to know who are involved in
       the consideration or performance of the business arrangements described
       herein.

       5.     This Agreement shall not apply to Information that:

              (a)    is in or enters the public domain, through no fault of the
       Receiving Party; or

              (b)    is or has been disclosed by the Disclosing Party to the
       other Party or to a third party without restriction; or

              (c)    is already in the possession of the Receiving Party,
       without restriction and prior to disclosure of the Information hereunder;
       or

              (d)    is or has been lawfully disclosed by a third party to the
       Receiving Party without an obligation of confidentiality; or

              (e)    is developed by the Receiving Party independently of any
       breach of this Agreement; or

              (f)    is disclosed when the applicable period of confidentiality
       pursuant to paragraph 3 has ended.

       Each party may disclose any Proprietary Information to the extent that
       such Party has been advised by counsel that such disclosure is necessary
       to comply with laws or regulations, or as necessary in connection with
       the filing of any patent, copyright, or similar application or
       registration; provided that each Party shall give the other Party
       reasonable advance notice of such proposed disclosure, shall use its best
       efforts to secure confidential treatment of any such Proprietary
       Information and shall advise the other Party in writing of the manner of
       the disclosure.

       6.     This Agreement shall terminate two (2) years from the date first
       written above, except the obligations of confidentiality pursuant to
       paragraph 3, and the terms of paragraph 4, shall continue for the period
       specified in paragraph 3.

       7.     Neither this Agreement nor the disclosure or receipt of
       Information shall constitute or imply a commitment by either Party with
       respect to present or future business arrangements or other subject
       matter not expressly set forth herein.

       8.     The Receiving Party shall have, or shall enter into, agreements
       with its parent, divisions, subsidiary companies and consultants that
       will safeguard the Proprietary

<PAGE>

       Information disclosed hereunder consistent with the terms of this
       Agreement. With respect to employees, the Receiving Party shall advise
       all employees who will have access to Proprietary Information as to their
       obligations contained herein.

       9.     Except as expressly provided herein, no license or right is
       granted by the Disclosing Party to the Receiving Party under any patent,
       patent application, trademark, copyright, software or trade secret.

       10.    Any amendment to this Agreement must be in writing and signed by
       authorized officials of each Party.  No failure or delay in exercising
       any right under this Agreement shall operate as a waiver thereof.

       11.    At the Disclosing Party's request, all Proprietary Information of
       the Disclosing Party in tangible form that is in the possession of the
       Receiving Party shall be returned to the Disclosing Party or destroyed.

       12.    Each Party agrees that it will not disclose the subject matter or
       terms of this Agreement or the discussions between the Parties without
       the written consent of the other Party.

       13.    This Agreement shall be governed by the laws of the United
       Kingdom.

<PAGE>

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly
executed by their duly authorised officers as of    December 1999 and hereby
deem that this Agreement shall be effective from the Effective Date (as defined
in the Contract).


For the Contractor:                     For the Purchaser:


INTERWAVE COMMUNICATIONS                 Lanka Cellular Services (Pvt) LIMITED

INTERNATIONAL LTD.


By                                      By

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

NAME                                    NAME

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


(PRINT IN BLOCK LETTERS)                (PRINT IN BLOCK LETTERS)


TITLE                                   TITLE

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

DATE                                    DATE

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

WITNESS                                 WITNESS

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

<PAGE>
                                                                    EXHIBIT 23.1

                        CONSENT OF INDEPENDENT AUDITORS

The Board of Directors

InterWAVE Communications International, Ltd.

    We consent to the use of our report included herein, and to the references
to our firm under the headings "Experts" and "Selected Consolidated Financial
Data" in the prospectus.

/s/ KPMG LLP


San Francisco, California
January 27, 2000



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