
<PAGE>   1
                        AirNet Communications Corporation

                                    Shares 1/
                                  Common Stock
                                ($ .01 par value)

                             Underwriting Agreement


                                                              New York, New York
                                                                          , 1999

Salomon Smith Barney Inc.
Hambrecht & Quist
Volpe Brown Whelan & Company
As Representatives of the several Underwriters,
c/o Salomon Smith Barney Inc.
388 Greenwich Street
New York, New York 10013


Ladies and Gentlemen:

                  AirNet Communications Corporation, a corporation organized
under the laws of Delaware (the "Company"), proposes to sell to the several
underwriters named in Schedule I hereto (the "Underwriters"), for whom you (the
"Representatives") are acting as representatives,            shares of Common
Stock, $     par value ("Common Stock") of the Company (said shares to be issued
and sold by the Company being hereinafter called the "Underwritten Securities").
The Company also proposes to grant to the Underwriters an option to purchase up
to              additional shares of Common Stock to cover over-allotments (the
"Option Securities"; the Option Securities, together with the Underwritten
Securities, being hereinafter called the "Securities"). To the extent there are
no additional Underwriters listed on Schedule I other than you, the term
Representatives as used herein shall mean you, as Underwriters, and the terms
Representatives and Underwriters shall mean either the singular or plural as the
context requires. Certain terms used herein are defined in Section 17 hereof.

                  As part of the offering contemplated by this Agreement,
Salomon Smith Barney Inc. has agreed to reserve out of the Securities set forth
opposite its name on the Schedule II to this Agreement, up to            shares,
for sale to the Company's employees, officers, and directors and customers and
vendors of the Company (collectively, "Participants"), as set forth in the
Prospectus under the heading "Underwriting" (the "Directed Share Program"). The
Securities to be sold by Salomon Smith Barney Inc. pursuant to the Directed
Share Program (the "Directed Shares") will be sold by Salomon Smith Barney Inc.
pursuant to this Agreement at the public offering price. Any Directed Shares not
orally confirmed for purchase by any Participants by the end of the business day

--------
     1/ Plus an option to purchase from the Company, up to            additional
Securities to cover over-allotments.
<PAGE>   2
                                                                               2


on which this Agreement is executed will be offered to the public by Salomon
Smith Barney Inc. as set forth in the Prospectus.


                  1. Representations and Warranties. The Company represents and
warrants to, and agrees with, each Underwriter as set forth below in this
Section 1.

                  (a) The Company has prepared and filed with the Commission a
         registration statement (file number 333-87693) on Form S-1, including a
         related preliminary prospectus, for registration under the Act of the
         offering and sale of the Securities. The Company may have filed one or
         more amendments thereto, including a related preliminary prospectus,
         each of which has previously been furnished to you. The Company will
         next file with the Commission either (1) prior to the Effective Date of
         such registration statement, a further amendment to such registration
         statement (including the form of final prospectus) or (2) after the
         Effective Date of such registration statement, a final prospectus in
         accordance with Rules 430A and 424(b). In the case of clause (2), the
         Company has included in such registration statement, as amended at the
         Effective Date, all information (other than Rule 430A Information)
         required by the Act and the rules thereunder to be included in such
         registration statement and the Prospectus. As filed, such amendment and
         form of final prospectus, or such final prospectus, shall contain all
         Rule 430A Information, together with all other such required
         information, and, except to the extent the Representatives shall agree
         in writing to a modification, shall be in all substantive respects in
         the form furnished to you prior to the Execution Time or, to the extent
         not completed at the Execution Time, shall contain only such specific
         additional information and other changes (beyond that contained in the
         latest Preliminary Prospectus) as the Company has advised you, prior to
         the Execution Time, will be included or made therein.

                  (b) On the Effective Date, the Registration Statement did or
         will, and when the Prospectus is first filed (if required) in
         accordance with Rule 424(b) and on the Closing Date (as defined herein)
         and on any date on which Option Securities are purchased, if such date
         is not the Closing Date (a "settlement date"), the Prospectus (and any
         supplements thereto) will, comply in all material respects with the
         applicable requirements of the Act and the rules thereunder; on the
         Effective Date and at the Execution Time, the Registration Statement
         did not or will not contain any untrue statement of a material fact or
         omit to state any material fact required to be stated therein or
         necessary in order to make the statements therein not misleading; and,
         on the Effective Date, the Prospectus, if not filed pursuant to Rule
         424(b), will not, and on the date of any filing pursuant to Rule 424(b)
         and on the Closing Date and any settlement date, the Prospectus
         (together with any supplement thereto) will not, include any untrue
         statement of a material fact or omit to state a material fact necessary
         in order to make the statements therein, in the light of the
         circumstances under which they were made, not misleading; provided,
         however, that the Company makes no representations or warranties as to
         the information contained in or omitted from the Registration Statement
         or the Prospectus (or any supplement thereto) in reliance upon and in
         conformity with information furnished in writing to the Company by or
         on behalf of any Underwriter through the Representatives specifically
         for inclusion in the Registration Statement or the Prospectus (or any
         supplement thereto).
<PAGE>   3
                                                                               3


                  (c) The Company has been duly incorporated and is validly
         existing as a corporation in good standing under the laws of the
         jurisdiction in which it is chartered or organized with full corporate
         power and authority to own or lease, as the case may be, and to operate
         its properties and conduct its business as described in the Prospectus.
         The Company is duly qualified to do business as a foreign corporation
         and is in good standing under the laws of each jurisdiction which
         requires such qualification, except where the failure to be so
         qualified would not, individually or in the aggregate, have a material
         adverse effect on the condition (financial or otherwise), prospects,
         earnings, business or properties of the Company.

                  (d) The Company's authorized equity capitalization is as set
         forth in the Prospectus; the capital stock of the Company conforms in
         all material respects to the description thereof contained in the
         Prospectus; the outstanding shares of Common Stock have been duly and
         validly authorized and issued and are fully paid and nonassessable; the
         Securities have been duly and validly authorized, and, when issued and
         delivered to and paid for by the Underwriters pursuant to this
         Agreement, will be fully paid and nonassessable; the Securities are
         duly listed, and admitted and authorized for trading, subject to
         official notice of issuance and evidence of satisfactory distribution,
         on the Nasdaq National Market; the certificates for the Securities are
         in valid and sufficient form; the holders of outstanding shares of
         capital stock of the Company are not entitled to preemptive or other
         rights to subscribe for the Securities; and, except as set forth in the
         Prospectus, no options, warrants or other rights to purchase,
         agreements or other obligations to issue, or rights to convert any
         obligations into or exchange any securities for, shares of capital
         stock of or ownership interests in the Company are outstanding;

                  (e) There is no franchise, contract or other document of a
         character required to be described in the Registration Statement or
         Prospectus, or to be filed as an exhibit thereto, which is not
         described or filed as required; and the statements in the Prospectus
         under the headings "Business--Government Regulation," "Risk
         Factors--Our industry is subject to extensive government regulation
         that could cause significant delays and expense," "Description of
         Capital Stock--Antitakeover Effects of Provisions of Delaware Law and
         Our Certificate Of Incorporation and Bylaws," "Shares Eligible for
         Future Sale" and "United States Tax Consequences to Non-U.S.
         Holders" fairly summarize the matters therein described.

                  (f) This Agreement has been duly authorized, executed and
         delivered by the Company and constitutes a valid and binding obligation
         of the Company enforceable in accordance with its terms.

                  (g) The Company is not and, after giving effect to the
         offering and sale of the Securities and the application of the proceeds
         thereof as described in the Prospectus, will not be an "investment
         company" as defined in the Investment Company Act of 1940, as amended.

                  (h) No consent, approval, authorization, filing with or order
         of any court or governmental agency or body is required in connection
         with the transactions contemplated herein, except such as have been
         obtained under the Act and such as may be required under the blue sky
         laws of any jurisdiction in connection with the purchase and
         distribution of the Securities by the Underwriters in the manner
         contemplated herein and in the Prospectus.
<PAGE>   4
                                                                               4


                  (i) Neither the issue and sale of the Securities nor the
         consummation of any other of the transactions herein contemplated nor
         the fulfillment of the terms hereof will conflict with, result in a
         breach or violation or imposition of any lien, charge or encumbrance
         upon any property or assets of the Company pursuant to (i) the charter
         or by-laws of the Company, (ii) the terms of any indenture, contract,
         lease, mortgage, deed of trust, note agreement, loan agreement or other
         agreement, obligation, condition, covenant or instrument to which the
         Company is a party or bound or to which its property is subject, or
         (iii) any statute, law, rule, regulation, judgment, order or decree
         applicable to the Company of any court, regulatory body, administrative
         agency, governmental body, arbitrator or other authority having
         jurisdiction over the Company or any of its properties.

                  (j) No holders of securities of the Company have rights to the
         registration of such securities under the Registration Statement.

                  (k) The historical financial statements and schedules of the
         Company included in the Prospectus and the Registration Statement
         present fairly in all material respects the financial condition,
         results of operations and cash flows of the Company as of the dates and
         for the periods indicated, comply as to form with the applicable
         accounting requirements of the Act and have been prepared in conformity
         with generally accepted accounting principles applied on a consistent
         basis throughout the periods involved (except as otherwise noted
         therein). The selected financial data set forth under the caption
         "Selected Financial Data" in the Prospectus and Registration Statement
         fairly present, on the basis stated in the Prospectus and the
         Registration Statement, the information included therein. The pro forma
         financial information included in the Prospectus and the Registration
         Statement is based on assumptions that provide a reasonable basis for
         presenting the significant effects directly attributable to the
         transactions and events described therein, the related pro forma
         adjustments give appropriate effect to those assumptions, and the pro
         forma adjustments reflect the proper application of those adjustments
         to the historical financial statement amounts included in the
         Prospectus and the Registration Statement.

                  (l) No action, suit or proceeding by or before any court or
         governmental agency, authority or body or any arbitrator involving the
         Company or its property is pending or, to the best knowledge of the
         Company, threatened that (i) could reasonably be expected to have a
         material adverse effect on the performance of this Agreement or the
         consummation of any of the transactions contemplated hereby or (ii)
         could reasonably be expected to have a material adverse effect on the
         condition (financial or otherwise), prospects, earnings, business or
         properties of the Company, whether or not arising from transactions in
         the ordinary course of business, except as set forth in or contemplated
         in the Prospectus (exclusive of any supplement thereto).

                  (m) The Company owns or leases all such properties as are
         necessary to the conduct of its operations as presently conducted.

                  (n) The Company is not in violation or default of (i) any
         provision of its charter or bylaws, (ii) the terms of any indenture,
         contract, lease, mortgage, deed of trust, note agreement, loan
         agreement or other agreement, obligation, condition, covenant or
         instrument to which it is a party or bound or to which its property is
<PAGE>   5
                                                                               5


         subject, which violation or default would, individually or in the
         aggregate, have a material adverse effect on the condition (financial
         or otherwise), prospects, earnings, business or properties of the
         Company, whether or not arising from transactions in the ordinary
         course of business, except as set forth in or contemplated in the
         Prospectus (exclusive of any supplement thereto), or (iii) any statute,
         law, rule, regulation, judgment, order or decree of any court,
         regulatory body, administrative agency, governmental body, arbitrator
         or other authority having jurisdiction over the Company or any of its
         properties, as applicable.

                  (o) Ernst & Young LLP and Deloitte & Touche LLP, who have
         certified certain financial statements of the Company and delivered
         their reports with respect to the audited financial statements and
         schedules included in the Prospectus, are each independent public
         accountants with respect to the Company within the meaning of the Act
         and the applicable published rules and regulations thereunder.

                  (p) There are no transfer taxes or other similar fees or
         charges under Federal law or the laws of any state, or any political
         subdivision thereof, required to be paid in connection with the
         execution and delivery of this Agreement or the issuance by the Company
         or sale by the Company of the Securities.

                  (q) The Company has filed all foreign, federal, state and
         local tax returns that are required to be filed or has requested
         extensions thereof (except in any case in which the failure so to file
         would not have a material adverse effect on the condition (financial or
         otherwise), prospects, earnings, business or properties of the Company,
         whether or not arising from transactions in the ordinary course of
         business, except as set forth in or contemplated in the Prospectus
         (exclusive of any supplement thereto)) and has paid all taxes required
         to be paid by it and any other assessment, fine or penalty levied
         against it, to the extent that any of the foregoing is due and payable,
         except for any such assessment, fine or penalty that is currently being
         contested in good faith or as would not have a material adverse effect
         on the condition (financial or otherwise), prospects, earnings,
         business or properties of the Company, whether or not arising from
         transactions in the ordinary course of business, except as set forth in
         or contemplated in the Prospectus (exclusive of any supplement
         thereto).

                  (r) No labor problem or dispute with the employees of the
         Company exists or, to the Company's best knowledge, is threatened or
         imminent, and the Company, without independent investigation, is not
         aware of any existing or imminent labor disturbance by the employees of
         any of its principal suppliers, contractors or customers, that could
         have a material adverse effect on the condition (financial or
         otherwise), prospects, earnings, business or properties of the Company,
         whether or not arising from transactions in the ordinary course of
         business, except as set forth in or contemplated in the Prospectus
         (exclusive of any supplement thereto).

                  (s) The Company is insured by insurers of recognized financial
         responsibility against such losses and risks and in such amounts as are
         prudent and customary in the businesses in which it is engaged; all
         policies of insurance and fidelity or surety bonds insuring the Company
         or its businesses, assets, employees, officers and directors are in
         full force and effect; the Company is in compliance with the terms of
         such policies and instruments in all material respects; and there are
         no claims by the Company under any such policy or instrument as to
         which any insurance
<PAGE>   6
                                                                               6


         company is denying liability or defending under a reservation of rights
         clause; the Company has not been refused any insurance coverage sought
         or applied for; and the Company has no reason to believe that it will
         not be able to renew its existing insurance coverage as and when such
         coverage expires or to obtain similar coverage from similar insurers as
         may be necessary to continue its business at a cost that would not have
         a material adverse effect on the condition (financial or otherwise),
         prospects, earnings, business or properties of the Company, whether or
         not arising from transactions in the ordinary course of business,
         except as set forth in or contemplated in the Prospectus (exclusive of
         any supplement thereto).

                  (t) The Company possesses all licenses, certificates, permits
         and other authorizations issued by the appropriate federal, state or
         foreign regulatory authorities necessary to conduct its businesses, and
         the Company has not received any notice of proceedings relating to the
         revocation or modification of any such certificate, authorization or
         permit which, singly or in the aggregate, if the subject of an
         unfavorable decision, ruling or finding, would have a material adverse
         effect on the condition (financial or otherwise), prospects, earnings,
         business or properties of the Company, whether or not arising from
         transactions in the ordinary course of business, except as set forth in
         or contemplated in the Prospectus (exclusive of any supplement
         thereto).

                  (u) The Company maintains a system of internal accounting
         controls sufficient to provide reasonable assurance that (i)
         transactions are executed in accordance with management's general or
         specific authorizations; (ii) transactions are recorded as necessary to
         permit preparation of financial statements in conformity with generally
         accepted accounting principles and to maintain asset accountability;
         (iii) access to assets is permitted only in accordance with
         management's general or specific authorization; and (iv) the recorded
         accountability for assets is compared with the existing assets at
         reasonable intervals and appropriate action is taken with respect to
         any differences.

                  (v) The Company has not taken, directly or indirectly, any
         action designed to or which has constituted or which might reasonably
         be expected to cause or result, under the Exchange Act or otherwise, in
         stabilization or manipulation of the price of any security of the
         Company to facilitate the sale or resale of the Securities.

                  (w) The Company is (i) in compliance with any and all
         applicable foreign, federal, state and local laws and regulations
         relating to the protection of human health and safety, the environment
         or hazardous or toxic substances or wastes, pollutants or contaminants
         ("Environmental Laws"), (ii) has received and is in compliance with all
         permits, licenses or other approvals required of them under applicable
         Environmental Laws to conduct its businesses and (iii) has not received
         notice of any actual or potential liability for the investigation or
         remediation of any disposal or release of hazardous or toxic substances
         or wastes, pollutants or contaminants, except where such non-compliance
         with Environmental Laws, failure to receive required permits, licenses
         or other approvals, or liability would not, individually or in the
         aggregate, have a material adverse effect on the condition (financial
         or otherwise), prospects, earnings, business or properties of the
         Company, whether or not arising from transactions in the ordinary
         course of business, except as set forth in or contemplated in the
         Prospectus (exclusive of any supplement thereto). Except as set forth
         in the Prospectus, the Company has not been named as a "potentially
<PAGE>   7
                                                                               7


         responsible party" under the Comprehensive Environmental Response,
         Compensation, and Liability Act of 1980, as amended.

                  (x) The Company has reasonably concluded that the associated
         costs and liabilities of compliance with, or the effect of,
         Environmental Laws on the business, operations and properties of the
         Company would not, singly or in the aggregate, have a material adverse
         effect on the condition (financial or otherwise), prospects, earnings,
         business or properties of the Company, whether or not arising from
         transactions in the ordinary course of business, except as set forth in
         or contemplated in the Prospectus (exclusive of any supplement
         thereto).

                  (y) The Company has no plans (as defined in Section 3(3) of
         the United States Employee Retirement Income Security Act of 1974
         ("ERISA")) subject to the minimum funding standards of ERISA and the
         regulations and published interpretations thereunder.

                  (z) The Company owns, possesses, licenses or has other rights
         to use, on reasonable terms, all patents, patent applications, trade
         and service marks, trade and service mark registrations, trade names,
         copyrights, licenses, inventions, trade secrets, technology, know-how
         and other intellectual property (collectively, the "Intellectual
         Property") necessary for the conduct of the Company's business as now
         conducted or as proposed in the Prospectus to be conducted. Except as
         set forth in the Prospectus under the caption "Business--Proprietary
         Rights," (a) to the best knowledge of the Company, there are no rights
         of third parties to any such Intellectual Property; (b) to the best
         knowledge of the Company, there is no material infringement by third
         parties of any such Intellectual Property; (c) there is no pending or,
         to the best knowledge of the Company, threatened action, suit,
         proceeding or claim by others challenging the Company's rights in or to
         any such Intellectual Property, and the Company is unaware of any facts
         which would form a reasonable basis for any such claim; (d) there is no
         pending or, to the best knowledge of the Company, threatened action,
         suit, proceeding or claim by others challenging the validity or scope
         of any such Intellectual Property, and the Company is unaware of any
         facts which would form a reasonable basis for any such claim; (e) there
         is no pending or, to the best knowledge of the Company, threatened
         action, suit, proceeding or claim by others that the Company infringes
         or otherwise violates any patent, trademark, copyright, trade secret or
         other proprietary rights of others, and the Company is unaware of any
         other fact which would form a reasonable basis for any such claim; (f)
         to the Company's knowledge, there is no U.S. patent or published U.S.
         patent application which contains claims that dominate or may dominate
         any Intellectual Property described in the Prospectus as being owned by
         or licensed to the Company or that interferes with the issued or
         pending claims of any such Intellectual Property; and (g) there is no
         prior art of which the Company is aware that may render any U.S. patent
         held by the Company invalid or any U.S. patent application held by the
         Company unpatentable which has not been disclosed to the U.S. Patent
         and Trademark Office.

                  (aa) The statements contained in the Prospectus under the
         captions "Risk Factors--We may not be able to adequately protect our
         proprietary rights which would hurt our ability to compete" and
         "Business--Proprietary Rights," insofar as such statements summarize
         legal matters, agreements, documents, or proceedings, including the
         status of patent applications, whether pending, granted or allowed,
<PAGE>   8
                                                                               8


         discussed therein, are accurate and fair summaries of such legal
         matters, agreements, documents or proceedings.

                  (bb) Except as disclosed in the Registration Statement and the
         Prospectus, the Company (i) does not have any material lending or other
         relationship with any bank or lending affiliate of Salomon Smith Barney
         Holdings Inc. and (ii) does not intend to use any of the proceeds from
         the sale of the Securities hereunder to repay any outstanding debt owed
         to any affiliate of Salomon Smith Barney Holding Inc.

                  (cc) The Company has implemented a comprehensive, detailed
         program to analyze and address the risk that the computer hardware and
         software used by them may be unable to recognize and properly execute
         date-sensitive functions involving certain dates prior to and any dates
         after December 31, 1999 (the "Year 2000 Problem"), and has, except as
         set forth in the Prospectus, reasonably determined that such risk will
         be remedied on a timely basis without material expense and will not
         have a material adverse effect upon the financial condition and results
         of operations of the Company; and the Company reasonably believes,
         after due inquiry, that each supplier, vendor, customer or financial
         service organization used or serviced by the Company has remedied or
         will remedy on a timely basis the Year 2000 Problem, except as set
         forth in the Prospectus and except to the extent that a failure to
         remedy by any such supplier, vendor, customer or financial service
         organization would not have a material adverse effect on the Company.
         The Company is in compliance with the Commission's Release No. 33-7558
         related to Year 2000 compliance, as amended to date.

                  Any certificate signed by any officer of the Company and
delivered to the Representatives or counsel for the Underwriters in connection
with the offering of the Securities shall be deemed a representation and
warranty by the Company, as to matters covered thereby, to each Underwriter.

                  Furthermore, the Company represents and warrants to Salomon
Smith Barney Inc. that (i) the Registration Statement, the Prospectus and any
preliminary prospectus comply, and any further amendments or supplements thereto
will comply, with any applicable laws or regulations of foreign jurisdictions in
which the Prospectus or any preliminary prospectus, as amended or supplemented,
if applicable, are distributed in connection with the Directed Share Program,
and that (ii) no authorization, approval, consent, license, order, registration
or qualification of or with any government, governmental instrumentality or
court, other than such as have been obtained, is necessary under the securities
laws and regulations of foreign jurisdictions in which the Directed Shares are
offered outside the United States.

                  2. Purchase and Sale. (a) Subject to the terms and conditions
and in reliance upon the representations and warranties herein set forth, the
Company agrees to sell to each Underwriter, and each Underwriter agrees,
severally and not jointly, to purchase from the Company, at a purchase price of
$       per share, the amount of the Underwritten Securities set forth opposite
such Underwriter's name in Schedule I hereto.

                  (b) Subject to the terms and conditions and in reliance upon
the representations and warranties herein set forth, the Company hereby grants
an option to the several Underwriters to purchase, severally and not jointly, up
to             Option Securities at the same purchase price per share as the
Underwriters shall pay for the
<PAGE>   9
                                                                               9


Underwritten Securities. Said option may be exercised only to cover
over-allotments in the sale of the Underwritten Securities by the Underwriters.
Said option may be exercised in whole or in part at any time (but not more than
once) on or before the 30th day after the date of the Prospectus upon written or
telegraphic notice by the Representatives to the Company setting forth the
number of shares of the Option Securities as to which the several Underwriters
are exercising the option and the settlement date. The number of Option
Securities to be purchased by each Underwriter shall be the same percentage of
the total number of shares of the Option Securities to be purchased by the
several Underwriters as such Underwriter is purchasing of the Underwritten
Securities, subject to such adjustments as you in your absolute discretion shall
make to eliminate any fractional shares.

                  3. Delivery and Payment. Delivery of and payment for the
Underwritten Securities and the Option Securities (if the option provided for in
Section 2(b) hereof shall have been exercised on or before the third Business
Day prior to the Closing Date) shall be made at 10:00 AM, New York City time, on
          , 1999, or at such time on such later date not more than three
Business Days after the foregoing date as the Representatives shall designate,
which date and time may be postponed by agreement among the Representatives and
the Company or as provided in Section 9 hereof (such date and time of delivery
and payment for the Securities being herein called the "Closing Date"). Delivery
of the Securities shall be made to the Representatives for the respective
accounts of the several Underwriters against payment by the several Underwriters
through the Representatives of the purchase price thereof to or upon the order
of the Company by wire transfer payable in same-day funds to an account
specified by the Company. Delivery of the Underwritten Securities and the Option
Securities shall be made through the facilities of The Depository Trust Company
unless the Representatives shall otherwise instruct.

                  If the option provided for in Section 2(b) hereof is exercised
after the third Business Day prior to the Closing Date, the Company will deliver
the Option Securities (at the expense of the Company) to the Representatives, at
388 Greenwich Street, New York, New York on the date specified by the
Representatives (which shall be within three Business Days after exercise of
said option) for the respective accounts of the several Underwriters, against
payment by the several Underwriters through the Representatives of the purchase
price thereof to or upon the order of the Company by wire transfer payable in
same-day funds to an account specified by the Company. If settlement for the
Option Securities occurs after the Closing Date, the Company will deliver to the
Representatives on the settlement date for the Option Securities, and the
obligation of the Underwriters to purchase the Option Securities shall be
conditioned upon receipt of, supplemental opinions, certificates and letters
confirming as of such date the opinions, certificates and letters delivered on
the Closing Date pursuant to Section 6 hereof.

                  4. Offering by Underwriters. It is understood that the several
Underwriters propose to offer the Securities for sale to the public as set forth
in the Prospectus.

                  5. Agreements. The Company agrees with the several
Underwriters that:

                  (a) The Company will use its best efforts to cause the
         Registration Statement, if not effective at the Execution Time, and any
         amendment thereof, to become effective. Prior to the termination of the
         offering of the Securities, the Company will not file any amendment of
         the Registration Statement or supplement to the Prospectus or any Rule
         462(b) Registration Statement unless the Company has furnished you a
         copy for your review prior to filing and will not file any such
<PAGE>   10
                                                                              10


         proposed amendment or supplement to which you reasonably object.
         Subject to the foregoing sentence, if the Registration Statement has
         become or becomes effective pursuant to Rule 430A, or filing of the
         Prospectus is otherwise required under Rule 424(b), the Company will
         cause the Prospectus, properly completed, and any supplement thereto to
         be filed with the Commission pursuant to the applicable paragraph of
         Rule 424(b) within the time period prescribed and will provide evidence
         satisfactory to the Representatives of such timely filing. The Company
         will promptly advise the Representatives (1) when the Registration
         Statement, if not effective at the Execution Time, shall have become
         effective, (2) when the Prospectus, and any supplement thereto, shall
         have been filed (if required) with the Commission pursuant to Rule
         424(b) or when any Rule 462(b) Registration Statement shall have been
         filed with the Commission, (3) when, prior to termination of the
         offering of the Securities, any amendment to the Registration Statement
         shall have been filed or become effective, (4) of any request by the
         Commission or its staff for any amendment of the Registration
         Statement, or any Rule 462(b) Registration Statement, or for any
         supplement to the Prospectus or for any additional information, (5) of
         the issuance by the Commission of any stop order suspending the
         effectiveness of the Registration Statement or the institution or
         threatening of any proceeding for that purpose and (6) of the receipt
         by the Company of any notification with respect to the suspension of
         the qualification of the Securities for sale in any jurisdiction or the
         institution or threatening of any proceeding for such purpose. The
         Company will use its best efforts to prevent the issuance of any such
         stop order or the suspension of any such qualification and, if issued,
         to obtain as soon as possible the withdrawal thereof.

                  (b) If, at any time when a prospectus relating to the
         Securities is required to be delivered under the Act, any event occurs
         as a result of which the Prospectus as then supplemented would include
         any untrue statement of a material fact or omit to state any material
         fact necessary to make the statements therein in the light of the
         circumstances under which they were made not misleading, or if it shall
         be necessary to amend the Registration Statement or supplement the
         Prospectus to comply with the Act or the rules thereunder, the Company
         promptly will (1) notify the Representatives of any such event; (2)
         prepare and file with the Commission, subject to the second sentence of
         paragraph (a) of this Section 5, an amendment or supplement which will
         correct such statement or omission or effect such compliance; and (3)
         supply any supplemented Prospectus to you in such quantities as you may
         reasonably request.

                  (c) As soon as practicable, the Company will make generally
         available to its security holders and to the Representatives an
         earnings statement or statements of the Company which will satisfy the
         provisions of Section 11(a) of the Act and Rule 158 under the Act.

                  (d) The Company will furnish to the Representatives and
         counsel for the Underwriters signed copies of the Registration
         Statement (including exhibits thereto) and to each other Underwriter a
         copy of the Registration Statement (without exhibits thereto) and, so
         long as delivery of a prospectus by an Underwriter or dealer may be
         required by the Act, as many copies of each Preliminary Prospectus and
         the Prospectus and any supplement thereto as the Representatives may
         reasonably request; provided that the printing and delivery costs for
         any copies of the Preliminary Prospectus and the Prospectus and any
         supplements thereto requested by the
<PAGE>   11
                                                                              11


         Representatives on any date after the date which is nine (9) month
         after the Closing Date shall by borne by the Underwriters.

                  (e) The Company will arrange, if necessary, for the
         qualification of the Securities for sale under the laws of such
         jurisdictions as the Representatives may designate and will maintain
         such qualifications in effect so long as required for the distribution
         of the Securities; provided that in no event shall the Company be
         obligated to qualify to do business in any jurisdiction where it is not
         now so qualified or to take any action that would subject it to service
         of process in suits, other than those arising out of the offering or
         sale of the Securities, in any jurisdiction where it is not now so
         subject.

                  (f) The Company will not, without the prior written consent of
         Salomon Smith Barney Inc., offer, sell, contract to sell, pledge, or
         otherwise dispose of, (or enter into any transaction which is designed
         to, or might reasonably be expected to, result in the disposition
         (whether by actual disposition or effective economic disposition due to
         cash settlement or otherwise) by the Company or any affiliate of the
         Company or any person in privity with the Company or any affiliate of
         the Company) directly or indirectly, including the filing (or
         participation in the filing) of a registration statement with the
         Commission in respect of, or establish or increase a put equivalent
         position or liquidate or decrease a call equivalent position within the
         meaning of Section 16 of the Exchange Act, any other shares of Common
         Stock or any securities convertible into, or exercisable, or
         exchangeable for, shares of Common Stock; or publicly announce an
         intention to effect any such transaction for a period of 180 days
         following the Execution Time, provided, however, that the Company may
         issue and sell Common Stock pursuant to any employee stock option plan,
         stock ownership plan or dividend reinvestment plan of the Company in
         effect at the Execution Time and the Company may issue Common Stock
         issuable upon the conversion of securities or the exercise of warrants
         outstanding at the Execution Time.

                  (g) The Company will not take, directly or indirectly, any
         action designed to or which has constituted or which might reasonably
         be expected to cause or result, under the Exchange Act or otherwise, in
         stabilization or manipulation of the price of any security of the
         Company to facilitate the sale or resale of the Securities.

                  (h) The Company agrees to pay the costs and expenses relating
         to the following matters: (i) the preparation, printing or reproduction
         and filing with the Commission of the Registration Statement (including
         financial statements and exhibits thereto), each Preliminary
         Prospectus, the Prospectus, and each amendment or supplement to any of
         them; (ii) subject to the proviso in Section 5(d) hereof, the printing
         (or reproduction) and delivery (including postage, air freight charges
         and charges for counting and packaging) of such copies of the
         Registration Statement, each Preliminary Prospectus, the Prospectus,
         and all amendments or supplements to any of them, as may, in each case,
         be reasonably requested for use in connection with the offering and
         sale of the Securities; (iii) the preparation, printing,
         authentication, issuance and delivery of certificates for the
         Securities, including any stamp or transfer taxes in connection with
         the original issuance and sale of the Securities; (iv) the printing (or
         reproduction) and delivery of this Agreement, any blue sky memorandum
         and all other agreements or documents printed (or reproduced) and
         delivered in connection with the offering of the Securities; (v) the
         registration of the
<PAGE>   12
                                                                              12


         Securities under the Exchange Act and the listing of the Securities on
         the Nasdaq National Market; (vi) any registration or qualification of
         the Securities for offer and sale under the securities or blue sky laws
         of the several states (including filing fees and the reasonable fees
         and expenses of counsel for the Underwriters relating to such
         registration and qualification); (vii) any filings required to be made
         with the National Association of Securities Dealers, Inc. (including
         filing fees and the reasonable fees and expenses of counsel for the
         Underwriters relating to such filings); (viii) the transportation and
         other expenses incurred by or on behalf of Company representatives in
         connection with presentations to prospective purchasers of the
         Securities; (ix) the fees and expenses of the Company's accountants and
         the fees and expenses of counsel (including local and special counsel)
         for the Company; and (x) all other costs and expenses incident to the
         performance by the Company of its obligations hereunder.

                  (i) In connection with the Directed Share Program, the Company
         will ensure that the Directed Shares will be restricted to the extent
         required by the National Association of Securities Dealers, Inc. (the
         "NASD") or the NASD rules from sale, transfer, assignment, pledge or
         hypothecation for a period of three months following the date of the
         effectiveness of the Registration Statement. Salomon Smith Barney Inc.
         will notify the Company as to which Participants will need to be so
         restricted. The Company will direct the removal of such transfer
         restrictions upon the expiration of such period of time.

                  (j) The Company will pay all fees and disbursements of counsel
         incurred by the Underwriters in connection with the Directed Share
         Program and stamp duties, similar taxes or duties or other taxes, if
         any, incurred by the Underwriters in connection with the Directed Share
         Program.

                  Furthermore, the Company covenants with Salomon Smith Barney
Inc. that the Company will comply with all applicable securities and other
applicable laws, rules and regulations in each foreign jurisdiction in which the
Directed Shares are offered in connection with the Directed Share Program.


                  6. Conditions to the Obligations of the Underwriters. The
obligations of the Underwriters to purchase the Underwritten Securities and the
Option Securities, as the case may be, shall be subject to the accuracy of the
representations and warranties on the part of the Company contained herein as of
the Execution Time, the Closing Date and any settlement date pursuant to Section
3 hereof, to the accuracy of the statements of the Company made in any
certificates pursuant to the provisions hereof, to the performance by the
Company of its obligations hereunder and to the following additional conditions:

                  (a) If the Registration Statement has not become effective
         prior to the Execution Time, unless the Representatives agree in
         writing to a later time, the Registration Statement will become
         effective not later than (i) 6:00 PM New York City time on the date of
         determination of the public offering price, if such determination
         occurred at or prior to 3:00 PM New York City time on such date or (ii)
         9:30 AM on the Business Day following the day on which the public
         offering price was determined, if such determination occurred after
         3:00 PM New York City time on such date; if filing of the Prospectus,
         or any supplement thereto, is required pursuant to Rule 424(b), the
         Prospectus, and any such supplement, will be filed in the
<PAGE>   13
                                                                              13


         manner and within the time period required by Rule 424(b); and no stop
         order suspending the effectiveness of the Registration Statement shall
         have been issued and no proceedings for that purpose shall have been
         instituted or threatened.

                  (b) The Company shall have requested and caused Edwards &
         Angell, LLP, counsel for the Company, to have furnished to the
         Representatives their opinion, dated the Closing Date and addressed to
         the Representatives, to the effect that:

                           (i) the Company has been duly incorporated and is
                  validly existing as a corporation in good standing under the
                  laws of the jurisdiction in which it is chartered or
                  organized, with full corporate power and authority to own or
                  lease, as the case may be, and to operate its properties and
                  conduct its business as described in the Prospectus, and is
                  duly qualified to do business as a foreign corporation and is
                  in good standing under the laws of each jurisdiction which
                  requires such qualification;

                           (ii) the Company's authorized equity capitalization
                  is as set forth in the Prospectus; the capital stock of the
                  Company conforms in all material respects to the description
                  thereof contained in the Prospectus; the outstanding shares of
                  Common Stock have been duly and validly authorized and issued
                  and are fully paid and nonassessable; the Securities have been
                  duly and validly authorized, and, when issued and delivered to
                  and paid for by the Underwriters pursuant to this Agreement,
                  will be fully paid and nonassessable; the Securities are duly
                  listed, and admitted and authorized for trading, subject to
                  official notice of issuance and evidence of satisfactory
                  distribution, on the Nasdaq National Market; the certificates
                  for the Securities are in valid and sufficient form; the
                  holders of outstanding shares of capital stock of the Company
                  are not entitled to preemptive or other rights to subscribe
                  for the Securities; and, except as set forth in the
                  Prospectus, no options, warrants or other rights to purchase,
                  agreements or other obligations to issue, or rights to convert
                  any obligations into or exchange any securities for, shares of
                  capital stock of or ownership interests in the Company are
                  outstanding;

                           (iii) to the knowledge of such counsel, there is no
                  pending or threatened action, suit or proceeding by or before
                  any court or governmental agency, authority or body or any
                  arbitrator involving the Company or its property of a
                  character required to be disclosed in the Registration
                  Statement which is not adequately disclosed in the Prospectus,
                  and there is no franchise, contract or other document of a
                  character required to be described in the Registration
                  Statement or Prospectus, or to be filed as an exhibit thereto,
                  which is not described or filed as required; and the
                  statements included in the Prospectus under the headings
                  "Business--Government Regulation," "Risk Factors--Our industry
                  is subject to extensive government regulation that could cause
                  significant delays and expense," "Description of Capital
                  Stock--Antitakeover Effects of Provisions of Delaware Law and
                  Our Certificate Of Incorporation and Bylaws," "Shares Eligible
                  for Future Sale" and "United States Tax Consequences to
                  Non-U.S. Holders" fairly summarize the matters therein
                  described;
<PAGE>   14
                                                                              14


                           (iv) the Registration Statement has become effective
                  under the Act; any required filing of the Prospectus, and any
                  supplements thereto, pursuant to Rule 424(b) has been made in
                  the manner and within the time period required by Rule 424(b);
                  to the knowledge of such counsel, no stop order suspending the
                  effectiveness of the Registration Statement has been issued,
                  no proceedings for that purpose have been instituted or
                  threatened and the Registration Statement and the Prospectus
                  (other than the financial statements and other financial
                  information contained therein, as to which such counsel need
                  express no opinion) comply as to form in all material respects
                  with the applicable requirements of the Act and the rules
                  thereunder; and such counsel has no reason to believe that on
                  the Effective Date or the date the Registration Statement was
                  last amended after the Effective Date the Registration
                  Statement contained any untrue statement of a material fact or
                  omitted to state any material fact required to be stated
                  therein or necessary to make the statements therein not
                  misleading or that the Prospectus as of its date and on the
                  Closing Date included or includes any untrue statement of a
                  material fact or omitted or omits to state a material fact
                  necessary to make the statements therein, in the light of the
                  circumstances under which they were made, not misleading (in
                  each case, other than the financial statements and other
                  financial information contained therein, as to which such
                  counsel need express no opinion);

                           (v) this Agreement has been duly authorized, executed
                  and delivered by the Company;

                           (vi) the Company is not and, after giving effect to
                  the offering and sale of the Securities and the application of
                  the proceeds thereof as described in the Prospectus, will not
                  be, an "investment company" as defined in the Investment
                  Company Act of 1940, as amended;

                           (vii) no consent, approval, authorization, filing
                  with or order of any court or governmental agency or body is
                  required in connection with the transactions contemplated
                  herein, except such as have been obtained under the Act and
                  such as may be required under the blue sky laws of any
                  jurisdiction in connection with the purchase and distribution
                  of the Securities by the Underwriters in the manner
                  contemplated in this Agreement and in the Prospectus and such
                  other approvals (specified in such opinion) as have been
                  obtained;

                           (viii) neither the issue and sale of the Securities,
                  nor the consummation of any other of the transactions herein
                  contemplated nor the fulfillment of the terms hereof will
                  conflict with, result in a breach or violation of or
                  imposition of any lien, charge or encumbrance upon any
                  property or assets of the Company pursuant to, (i) the charter
                  or by-laws of the Company, (ii) the terms of any indenture,
                  contract, lease, mortgage, deed of trust, note agreement, loan
                  agreement or other agreement, obligation, condition, covenant
                  or instrument to which the Company is a party or bound or to
                  which its or their property is subject, or (iii) any statute,
                  law, rule, regulation, judgment, order or decree applicable to
                  the Company of any court, regulatory body, administrative
                  agency, governmental body, arbitrator or other authority
                  having jurisdiction over the Company or its properties, which
<PAGE>   15
                                                                              15


                  violation or default would, in the case of clauses (ii) and
                  (iii) above, either individually or in the aggregate, have a
                  material adverse effect on the condition (financial or
                  otherwise), prospects, earnings, business or properties of the
                  Company, whether or not arising from transactions in the
                  ordinary course of business; and

                           (ix) no holders of securities of the Company have
                  rights to the registration of such securities under the
                  Registration Statement.

         In rendering such opinion, such counsel may rely (A) as to matters
         involving the application of laws of any jurisdiction other than the
         States of Delaware, New York and Florida or the Federal laws of the
         United States, to the extent they deem proper and specified in such
         opinion, upon the opinion of other counsel of good standing whom they
         believe to be reliable and who are satisfactory to counsel for the
         Underwriters and (B) as to matters of fact, to the extent they deem
         proper, on certificates of responsible officers of the Company and
         public officials. References to the Prospectus in this paragraph (b)
         include any supplements thereto at the Closing Date.

                  (c) The Company shall have requested and caused Gardner,
         Carton & Douglas, special regulatory counsel to the Company, to furnish
         to the Representatives their opinion, dated the Closing Date and
         addressed to the Representatives, substantially in the form of Exhibit
         B hereto.

                  (d) The Company shall have requested and caused Quarles &
         Brady LLP, special counsel to the Company for intellectual property
         matters, to furnish to the Representatives their opinion, dated the
         Closing Date and addressed to the Representatives, substantially in the
         form of Exhibit C hereto.

                  (e) The Representatives shall have received from Cravath,
         Swaine & Moore, counsel for the Underwriters, such opinion or opinions,
         dated the Closing Date and addressed to the Representatives, with
         respect to the issuance and sale of the Securities, the Registration
         Statement, the Prospectus (together with any supplement thereto) and
         other related matters as the Representatives may reasonably require,
         and the Company shall have furnished to such counsel such documents as
         they request for the purpose of enabling them to pass upon such
         matters.

                  (f) The Company shall have furnished to the Representatives a
         certificate of the Company, signed by the Chairman of the Board or the
         President and the principal financial or accounting officer of the
         Company, dated the Closing Date, to the effect that the signers of such
         certificate have carefully examined the Registration Statement, the
         Prospectus, any supplements to the Prospectus and this Agreement and
         that:

                           (i) the representations and warranties of the Company
                  in this Agreement are true and correct in all material
                  respects on and as of the Closing Date with the same effect as
                  if made on the Closing Date and the Company has complied with
                  all the agreements and satisfied all the conditions on its
                  part to be performed or satisfied at or prior to the Closing
                  Date;
<PAGE>   16
                                                                              16


                           (ii) no stop order suspending the effectiveness of
                  the Registration Statement has been issued and no proceedings
                  for that purpose have been instituted or, to the Company's
                  knowledge, threatened; and

                           (iii) since the date of the most recent financial
                  statements included in the Prospectus (exclusive of any
                  supplement thereto), there has been no material adverse effect
                  on the condition (financial or otherwise), prospects,
                  earnings, business or properties of the Company whether or not
                  arising from transactions in the ordinary course of business,
                  except as set forth in or contemplated in the Prospectus
                  (exclusive of any supplement thereto).

                  (g) The Company shall have requested and caused Ernst & Young
         LLP to have furnished to the Representatives, at the Execution Time, a
         letter, dated as of the Execution Time, in form and substance
         reasonably satisfactory to the Representatives, confirming that they
         are independent accountants within the meaning of the Act and the
         respective applicable rules and regulations adopted by the Commission
         thereunder and Rule 101 of the Code of Professional Conduct of the
         American Institute of Certified Public Accountants and stating in
         effect that:

                           (i) in their opinion the audited financial statements
                  and financial statement schedules for the fiscal years ended
                  December 31, 1995, 1996 and 1997, included or incorporated by
                  reference in the Registration Statement and the Prospectus and
                  reported on by them comply as to form in all material respects
                  with the applicable accounting requirements of the Act and the
                  related rules and regulations adopted by the Commission; and

                           (ii) they have performed certain other specified
                  procedures as a result of which they determined that certain
                  information of an accounting, financial or statistical nature
                  (which is limited to accounting, financial or statistical
                  information derived from the general accounting records of the
                  Company and its subsidiaries) set forth in the Registration
                  Statement and the Prospectus, including the information set
                  forth under the captions "Management's Discussion and Analysis
                  of Financial Condition and Results of Operations", "Selected
                  Financial Data", "Prospectus Summary--Summary Financial Data",
                  and "Certain Transactions" in the Prospectus, agrees with the
                  accounting records of the Company, excluding any questions of
                  legal interpretation.

                  References to the Prospectus in this paragraph (g) include any
         supplement thereto at the date of the letter.

                  (h) The Company shall have requested and caused Deloitte &
         Touche LLP to have furnished to the Representatives, at the Execution
         Time and at the Closing Date, letters, dated respectively as of the
         Execution Time and as of the Closing Date, in form and substance
         satisfactory to the Representatives, confirming that they are
         independent accountants within the meaning of the Act and the
         applicable rules and regulations adopted by the Commission thereunder
         and that they have performed a review of the unaudited interim
         financial information of the Company for the three-
<PAGE>   17
                                                                              17


         month period ended September 30, 1999, and as at September 30, 1999, in
         accordance with Statement on Auditing Standards No. 71, and stating in
         effect that:

                           (i) in their opinion the audited financial statements
                  and financial statement schedules included in the Registration
                  Statement and the Prospectus and reported on by them comply as
                  to form in all material respects with the applicable
                  accounting requirements of the Act and the related rules and
                  regulations adopted by the Commission;

                           (ii) on the basis of a reading of the latest
                  unaudited financial statements made available by the Company;
                  their limited review, in accordance with standards established
                  under Statement on Auditing Standards No. 71, of the unaudited
                  interim financial information for the three-month period ended
                  September 30, 1999, and as at September 30, 1999; carrying out
                  certain specified procedures (but not an examination in
                  accordance with generally accepted auditing standards) which
                  would not necessarily reveal matters of significance with
                  respect to the comments set forth in such letter; a reading of
                  the minutes of the meetings of the stockholders, directors and
                  the executive, finance, compensation and audit committees of
                  the Company; and inquiries of certain officials of the Company
                  who have responsibility for financial and accounting matters
                  of the Company as to transactions and events subsequent to
                  June 30, 1999, nothing came to their attention which caused
                  them to believe that:

                                    (1) any unaudited financial statements
                           included in the Registration Statement and the
                           Prospectus do not comply as to form in all material
                           respects with applicable accounting requirements of
                           the Act and with the related rules and regulations
                           adopted by the Commission with respect to
                           registration statements on Form S-1; and said
                           unaudited financial statements are not in conformity
                           with generally accepted accounting principles
                           applied on a basis substantially consistent with that
                           of the audited financial statements included in the
                           Registration Statement and the Prospectus;

                                    (2) with respect to the period subsequent to
                           September 30, 1999, there were any changes, at a
                           specified date not more than three days prior to the
                           date of the letter, in the long-term debt of the
                           Company or capital stock of the Company or decreases
                           in the stockholders' equity of the Company as
                           compared with the amounts shown on the September 30,
                           1999 consolidated balance sheet included in the
                           Registration Statement and the Prospectus, or for the
                           period from October 1, 1999, to such specified date
                           there were any decreases, as compared with the
                           corresponding period in the preceding year and the
                           preceding quarter in net revenues or income before
                           income taxes or in total or per share amount of net
                           income of the Company, except in all instances for
                           changes or decreases set forth in such letter, in
                           which case the letter shall be accompanied by an
                           explanation by the Company as to the significance
                           thereof unless said explanation is not deemed
                           necessary by the Representatives;
<PAGE>   18
                                                                              18



                                    (3) the information included in the
                           Registration Statement and Prospectus in response to
                           Regulation S-K, Item 301 (Selected Financial Data),
                           Item 302 (Supplementary Financial Information), and
                           Item 402 (Executive Compensation) is not in
                           conformity with the applicable disclosure
                           requirements of Regulation S-K; and

                           (iii) they have performed certain other specified
                  procedures as a result of which they determined that certain
                  information of an accounting, financial or statistical nature
                  (which is limited to accounting, financial or statistical
                  information derived from the general accounting records of the
                  Company) set forth in the Registration Statement and the
                  Prospectus, including the information set forth under the
                  captions "Management's Discussion and Analysis of Financial
                  Condition and Results of Operations", "Selected Financial
                  Data", "Prospectus Summary--Summary Historical Financial and
                  Operating Data", "Capitalization", "Dilution", "Business" and
                  "Risk Factors" in the Prospectus, agrees with the accounting
                  records of the Company, excluding any questions of legal
                  interpretation.

                  References to the Prospectus in this paragraph (h) include any
         supplement thereto at the date of the letter.

         The Company shall have received from Deloitte & Touche LLP (and
furnished to the Representatives) a report with respect to a review of unaudited
interim financial information of the Company for the seven quarters ending
September 30, 1999, in accordance with Statement on Auditing Standards No. 71.

                  (i) Subsequent to the Execution Time or, if earlier, the dates
as of which information is given in the Registration Statement (exclusive of any
amendment thereof) and the Prospectus (exclusive of any supplement thereto),
there shall not have been (i) any change or decrease specified in the letter or
letters referred to in paragraph (h) of this Section 6 or (ii) any change, or
any development involving a prospective change, in or affecting the condition
(financial or otherwise), earnings, business or properties of the Company,
whether or not arising from transactions in the ordinary course of business,
except as set forth in or contemplated in the Prospectus (exclusive of any
supplement thereto) the effect of which, in any case referred to in clause (i)
or (ii) above, is, in the sole judgment of the Representatives, so material and
adverse as to make it impractical or inadvisable to proceed with the offering or
delivery of the Securities as contemplated by the Registration Statement
(exclusive of any amendment thereof) and the Prospectus (exclusive of any
supplement thereto).

                  (j) The Securities shall have been listed and admitted and
authorized for trading on the Nasdaq National Market, and satisfactory evidence
of such actions shall have been provided to the Representatives.

                  (k) At the Execution Time, the Company shall have furnished to
the Representatives a letter substantially in the form of Exhibit A hereto from
each officer and director of the Company and from such other stockholders of the
Company as the Representatives may request addressed to the Representatives.
<PAGE>   19
                                                                              19



                  (l) Prior to the Closing Date, the Company shall have
furnished to the Representatives such further information, certificates and
documents as the Representatives may reasonably request.

                  If any of the conditions specified in this Section 6 shall not
have been fulfilled in all material respects when and as provided in this
Agreement, or if any of the opinions and certificates mentioned above or
elsewhere in this Agreement shall not be in all material respects reasonably
satisfactory in form and substance to the Representatives and counsel for the
Underwriters, this Agreement and all obligations of the Underwriters hereunder
may be canceled at, or at any time prior to, the Closing Date by the
Representatives. Notice of such cancelation shall be given to the Company in
writing or by telephone or facsimile confirmed in writing.

                  The documents required to be delivered by this Section 6 shall
be delivered at the office of Cravath, Swaine & Moore, counsel for the
Underwriters, at Worldwide Plaza, 825 Eighth Avenue, New York, New York 10019,
on the Closing Date.

                  7. Reimbursement of Underwriters' Expenses. If the sale of the
Securities provided for herein is not consummated because any condition to the
obligations of the Underwriters set forth in Section 6 hereof is not satisfied,
because of any termination pursuant to Section 10 hereof or because of any
refusal, inability or failure on the part of the Company to perform any
agreement herein or comply with any provision hereof other than by reason of a
default by any of the Underwriters, the Company will reimburse the Underwriters
severally through Salomon Smith Barney on demand for all out-of-pocket expenses
(including reasonable fees and disbursements of counsel) that shall have been
incurred by them in connection with the proposed purchase and sale of the
Securities.

                  8. Indemnification and Contribution. (a) The Company agrees to
indemnify and hold harmless each Underwriter, the directors, officers, employees
and agents of each Underwriter and each person who controls any Underwriter
within the meaning of either the Act or the Exchange Act against any and all
losses, claims, damages or liabilities, joint or several, to which they or any
of them may become subject under the Act, the Exchange Act or other Federal or
state statutory law or regulation, at common law or otherwise, insofar as such
losses, claims, damages or liabilities (or actions in respect thereof) arise out
of or are based upon any untrue statement or alleged untrue statement of a
material fact contained in the registration statement for the registration of
the Securities as originally filed or in any amendment thereof, or in any
Preliminary Prospectus or the Prospectus, or in any amendment thereof or
supplement thereto, or arise out of or are based upon the omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein not misleading, and agrees to reimburse
each such indemnified party, as incurred, for any legal or other expenses
reasonably incurred by them in connection with investigating or defending any
such loss, claim, damage, liability or action; provided, however, that the
Company will not be liable in any such case to the extent that any such loss,
claim, damage or liability arises out of or is based upon any such untrue
statement or alleged untrue statement or omission or alleged omission made
therein in reliance upon and in conformity with written information furnished to
the Company by or on behalf of any Underwriter through the Representatives
specifically for inclusion therein; provided further, that with respect to any
untrue statement or omission of material fact made in any Preliminary
Prospectus, the indemnity agreement contained in this Section 8(a) shall not
inure to the benefit of any Underwriter from whom the person asserting any such
loss, claim, damage or liability purchased the Securities concerned, to the
extent that any such loss,
<PAGE>   20
                                                                              20



claim, damage or liability of such Underwriter occurs under the circumstance
where it shall have been determined by a court of competent jurisdiction by
final and nonappealable judgment that (w) the Company had previously furnished
copies of the Prospectus to the Representatives, (x) delivery of the Prospectus
was required by the Act to be made to such person, (y) the untrue statement or
omission of a material fact contained in the Preliminary Prospectus was
corrected in the Prospectus and (z) there was not sent or given to such person,
at or prior to the written confirmation of the sale of such securities to such
person, a copy of the Prospectus. This indemnity agreement will be in addition
to any liability which the Company may otherwise have.

                  The Company agrees to indemnify and hold harmless Salomon
Smith Barney Inc., the directors, officers, employees and agents of Salomon
Smith Barney Inc. and each person who controls Salomon Smith Barney Inc. within
the meaning of either the Act or the Exchange Act ("Salomon Smith Barney Inc.
Entities"), from and against any and all losses, claims, damages and liabilities
to which they may become subject under the Act, the Exchange Act or other
Federal or state statutory law or regulation, at common law or otherwise
(including, without limitation, any legal or other expenses reasonably incurred
in connection with defending or investigating any such action or claim), insofar
as such losses, claims damages or liabilities (or actions in respect thereof)
(i) arise out of or are based upon any untrue statement or alleged untrue
statement of a material fact contained in the prospectus wrapper material
prepared by or with the consent of the Company for distribution in foreign
jurisdictions in connection with the Directed Share Program attached to the
Prospectus or any preliminary prospectus, or arise out of or are based upon the
omission or alleged omission to state therein a material fact required to be
stated therein or necessary to make the statement therein, when considered in
conjunction with the Prospectus or any applicable preliminary prospectus, not
misleading; (ii) caused by the failure of any Participant to pay for and accept
delivery of the securities which immediately following the Effective Date of the
Registration Statement were subject to a properly confirmed agreement to
purchase; or (iii) related to, arising out of, or in connection with the
Directed Share Program, provided that the Company will not be liable in any such
case to the extent that any such loss, claim, damage or liability arises out of
or is based upon any such untrue statement or alleged untrue statement or
omission or alleged omission made therein in reliance upon and in conformity
with written information furnished to the Company by or on behalf of Salomon
Smith Barney Inc. specifically for inclusion therein.

                  (b) Each Underwriter severally and not jointly agrees to
indemnify and hold harmless the Company, each of its directors, each of its
officers who signs the Registration Statement, and each person who controls the
Company within the meaning of either the Act or the Exchange Act, to the same
extent as the foregoing indemnity from the Company to each Underwriter, but only
with reference to written information relating to such Underwriter furnished to
the Company by or on behalf of such Underwriter through the Representatives
specifically for inclusion in the documents referred to in the foregoing
indemnity. This indemnity agreement will be in addition to any liability which
any Underwriter may otherwise have. The Company acknowledges that (i) the
statements set forth in the last paragraph of the cover page regarding delivery
of the Securities, and (ii) under the heading "Underwriting", (A) the list of
underwriters and their respective participation in the sale of the Securities,
(B) the sentences related to concessions and reallowances and (C) the paragraph
related to stabilization, syndicate covering transactions and penalty bids in
any Preliminary Prospectus and the Prospectus constitute the only information
furnished in writing by or on behalf of the several Underwriters for inclusion
in any Preliminary Prospectus or the Prospectus.
<PAGE>   21
                                                                              21


                  (c) Promptly after receipt by an indemnified party under this
Section 8 of notice of the commencement of any action, such indemnified party
will, if a claim in respect thereof is to be made against the indemnifying party
under this Section 8, notify the indemnifying party in writing of the
commencement thereof; but the failure so to notify the indemnifying party (i)
will not relieve it from liability under paragraph (a) or (b) above unless and
to the extent it did not otherwise learn of such action and such failure results
in the forfeiture by the indemnifying party of substantial rights and defenses
and (ii) will not, in any event, relieve the indemnifying party from any
obligations to any indemnified party other than the indemnification obligation
provided in paragraph (a) or (b) above. The indemnifying party shall be entitled
to appoint counsel of the indemnifying party's choice at the indemnifying
party's expense to represent the indemnified party in any action for which
indemnification is sought (in which case the indemnifying party shall not
thereafter be responsible for the fees and expenses of any separate counsel
retained by the indemnified party or parties except as set forth below);
provided, however, that such counsel shall be reasonably satisfactory to the
indemnified party. Notwithstanding anything contained herein to the contrary, if
indemnity may be sought pursuant to the second paragraph of 8(a) hereof in
respect of such action or proceeding, then in addition to such separate firm for
the indemnified parties, the indemnifying party shall be liable for the
reasonable fees and expenses of not more than one separate firm (in addition to
any local counsel) for Salomon Smith Barney Inc., the directors, officers,
employees and agents of Salomon Smith Barney Inc., and all persons, if any, who
control Salomon Smith Barney Inc. within the meaning of either the Act or the
Exchange Act for the defense of any losses, claims, damages and liabilities
arising out of the Directed Share Program. Notwithstanding the indemnifying
party's election to appoint counsel to represent the indemnified party in an
action, the indemnified party shall have the right to employ separate counsel
(including local counsel), and the indemnifying party shall bear the reasonable
fees, costs and expenses of such separate counsel, if (i) the use of counsel
chosen by the indemnifying party to represent the indemnified party would
present such counsel with a conflict of interest, (ii) the actual or potential
defendants in, or targets of, any such action include both the indemnified party
and the indemnifying party and the indemnified party shall have reasonably
concluded that there may be legal defenses available to it and/or other
indemnified parties which are different from or additional to those available to
the indemnifying party, (iii) the indemnifying party shall not have employed
counsel satisfactory to the indemnified party to represent the indemnified party
within a reasonable time after notice of the institution of such action or (iv)
the indemnifying party shall authorize the indemnified party to employ separate
counsel at the expense of the indemnifying party. An indemnifying party will
not, without the prior written consent of the indemnified parties, settle or
compromise or consent to the entry of any judgment with respect to any pending
or threatened claim, action, suit or proceeding in respect of which
indemnification or contribution may be sought hereunder (whether or not the
indemnified parties are actual or potential parties to such claim or action)
unless such settlement, compromise or consent includes an unconditional release
of each indemnified party from all liability arising out of such claim, action,
suit or proceeding.

                  (d) In the event that the indemnity provided in paragraph (a)
or (b) of this Section 8 is unavailable to or insufficient to hold harmless an
indemnified party for any reason, the Company and the Underwriters severally
agree to contribute to the aggregate losses, claims, damages and liabilities
(including legal or other expenses reasonably incurred in connection with
investigating or defending same) (collectively "Losses") to which the Company
and one or more of the Underwriters may be subject in such proportion as is
appropriate to reflect the relative benefits received by the Company on the one
hand and by the Underwriters on the other from the offering of the Securities;
provided, however, that in no
<PAGE>   22
                                                                              22


case shall any Underwriter (except as may be provided in any agreement among
underwriters relating to the offering of the Securities) be responsible for any
amount in excess of the underwriting discount or commission applicable to the
Securities purchased by such Underwriter hereunder. If the allocation provided
by the immediately preceding sentence is unavailable for any reason, the Company
and the Underwriters severally shall contribute in such proportion as is
appropriate to reflect not only such relative benefits but also the relative
fault of the Company on the one hand and of the Underwriters on the other in
connection with the statements or omissions which resulted in such Losses as
well as any other relevant equitable considerations. Benefits received by the
Company shall be deemed to be equal to the total net proceeds from the offering
(before deducting expenses) received by it, and benefits received by the
Underwriters shall be deemed to be equal to the total underwriting discounts and
commissions, in each case as set forth on the cover page of the Prospectus.
Relative fault shall be determined by reference to, among other things, whether
any untrue or any alleged untrue statement of a material fact or the omission or
alleged omission to state a material fact relates to information provided by the
Company on the one hand or the Underwriters on the other, the intent of the
parties and their relative knowledge, access to information and opportunity to
correct or prevent such untrue statement or omission. The Company and the
Underwriters agree that it would not be just and equitable if contribution were
determined by pro rata allocation or any other method of allocation which does
not take account of the equitable considerations referred to above.
Notwithstanding the provisions of this paragraph (d), no person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the Act)
shall be entitled to contribution from any person who was not guilty of such
fraudulent misrepresentation. For purposes of this Section 8, each person who
controls an Underwriter within the meaning of either the Act or the Exchange Act
and each director, officer, employee and agent of an Underwriter shall have the
same rights to contribution as such Underwriter, and each person who controls
the Company within the meaning of either the Act or the Exchange Act, each
officer of the Company who shall have signed the Registration Statement and each
director of the Company shall have the same rights to contribution as the
Company, subject in each case to the applicable terms and conditions of this
paragraph (d).

                  9. Default by an Underwriter. If any one or more Underwriters
shall fail to purchase and pay for any of the Securities agreed to be purchased
by such Underwriter or Underwriters hereunder and such failure to purchase shall
constitute a default in the performance of its or their obligations under this
Agreement, the remaining Underwriters shall be obligated severally to take up
and pay for (in the respective proportions which the amount of Securities set
forth opposite their names in Schedule I hereto bears to the aggregate amount of
Securities set forth opposite the names of all the remaining Under writers) the
Securities which the defaulting Underwriter or Underwriters agreed but failed to
purchase; provided, however, that in the event that the aggregate amount of
Securities which the defaulting Underwriter or Underwriters agreed but failed to
purchase shall exceed 10% of the aggregate amount of Securities set forth in
Schedule I hereto, the remaining Underwriters shall have the right to purchase
all, but shall not be under any obligation to purchase any, of the Securities,
and if such nondefaulting Underwriters do not purchase all the Securities, this
Agreement will terminate without liability to any nondefaulting Underwriter or
the Company. In the event of a default by any Underwriter as set forth in this
Section 9, the Closing Date shall be postponed for such period, not exceeding
five Business Days, as the Representatives shall determine in order that the
required changes in the Registration Statement and the Prospectus or in any
other documents or arrangements may be effected. Nothing contained in this
Agreement shall relieve any defaulting Underwriter
<PAGE>   23
                                                                              23


of its liability, if any, to the Company and any nondefaulting Underwriter for
damages occasioned by its default hereunder.

                  10. Termination. This Agreement shall be subject to
termination in the absolute discretion of the Representatives, by notice given
to the Company prior to delivery of and payment for the Securities, if at any
time prior to such time (i) trading in the Company's Common Stock shall have
been suspended by the Commission or the Nasdaq National Market or trading in
securities generally on the New York Stock Exchange or the Nasdaq National
Market shall have been suspended or limited or minimum prices shall have been
established on either of such Exchanges, (ii) a banking moratorium shall have
been declared either by Federal or New York State authorities or (iii) there
shall have occurred any outbreak or escalation of hostilities, declaration by
the United States of a national emergency or war, or other calamity or crisis
the effect of which on financial markets is such as to make it, in the sole
judgment of the Representatives, impractical or inadvisable to proceed with the
offering or delivery of the Securities as contemplated by the Prospectus
(exclusive of any supplement thereto).

                  11. Representations and Indemnities to Survive. The respective
agreements, representations, warranties, indemnities and other statements of the
Company or its officers and of the Underwriters set forth in or made pursuant to
this Agreement will remain in full force and effect, regardless of any
investigation made by or on behalf of any Underwriter or the Company or any of
the officers, directors, employees, agents or controlling persons referred to in
Section 8 hereof, and will survive delivery of and payment for the Securities.
The provisions of Sections 7 and 8 hereof shall survive the termination or
cancelation of this Agreement.

                  12. Notices. All communications hereunder will be in writing
and effective only on receipt, and, if sent to the Representatives, will be
mailed, delivered or telefaxed to the Salomon Smith Barney Inc. General Counsel
(fax no.: (212) 816-7912) and confirmed to the General Counsel, Salomon Smith
Barney Inc., at 388 Greenwich Street, New York, New York, 10013, Attention:
General Counsel; or, if sent to the Company, will be mailed, delivered or
telefaxed to (407) 676-9914 and confirmed to it at 100 Rialto Place, Suite 300,
Melbourne, Florida 32901, attention of the Chief Financial Officer.

                  13. Successors. This Agreement will inure to the benefit of
and be binding upon the parties hereto and their respective successors and the
officers, directors, employees, agents and controlling persons referred to in
Section 8 hereof, and no other person will have any right or obligation
hereunder.

                  14. Applicable Law. This Agreement will be governed by and
construed in accordance with the laws of the State of New York applicable to
contracts made and to be performed within the State of New York.

                  15. Counterparts. This Agreement may be signed in one or more
counterparts, each of which shall constitute an original and all of which
together shall constitute one and the same agreement.

                  16. Headings. The section headings used herein are for
convenience only and shall not affect the construction hereof.
<PAGE>   24
                                                                              24


                  17. Definitions. The terms which follow, when used in this
Agreement, shall have the meanings indicated.

                  "Act" shall mean the Securities Act of 1933, as amended, and
         the rules and regulations of the Commission promulgated thereunder.

                  "Business Day" shall mean any day other than a Saturday, a
         Sunday or a legal holiday or a day on which banking institutions or
         trust companies are authorized or obligated by law to close in New York
         City.

                  "Commission" shall mean the Securities and Exchange
         Commission.

                  "Effective Date" shall mean each date and time that the
         Registration Statement, any post-effective amendment or amendments
         thereto and any Rule 462(b) Registration Statement became or become
         effective.

                  "Exchange Act" shall mean the Securities Exchange Act of 1934,
         as amended, and the rules and regulations of the Commission promulgated
         thereunder.

                  "Execution Time" shall mean the date and time that this
         Agreement is executed and delivered by the parties hereto.

                  "Preliminary Prospectus" shall mean any preliminary prospectus
         referred to in paragraph 1(a) above and any preliminary prospectus
         included in the Registration Statement at the Effective Date that omits
         Rule 430A Information.

                  "Prospectus" shall mean the prospectus relating to the
         Securities that is first filed pursuant to Rule 424(b) after the
         Execution Time or, if no filing pursuant to Rule 424(b) is required,
         shall mean the form of final prospectus relating to the Securities
         included in the Registration Statement at the Effective Date.

                  "Registration Statement" shall mean the registration statement
         referred to in paragraph 1(a) above, including exhibits and financial
         statements, as amended at the Execution Time (or, if not effective at
         the Execution Time, in the form in which it shall become effective)
         and, in the event any post-effective amendment thereto or any Rule
         462(b) Registration Statement becomes effective prior to the Closing
         Date, shall also mean such registration statement as so amended or such
         Rule 462(b) Registration Statement, as the case may be. Such term shall
         include any Rule 430A Information deemed to be included therein at the
         Effective Date as provided by Rule 430A.

                  "Rule 424", "Rule 430A" and "Rule 462" refer to such rules
         under the Act.

                  "Rule 430A Information" shall mean information with respect to
         the Securities and the offering thereof permitted to be omitted from
         the Registration Statement when it becomes effective pursuant to Rule
         430A.

                  "Rule 462(b) Registration Statement" shall mean a registration
         statement and any amendments thereto filed pursuant to Rule 462(b)
         relating to the offering covered by the registration statement referred
         to in Section 1(a) hereof.
<PAGE>   25
                                                                              25


                  If the foregoing is in accordance with your understanding of
our agreement, please sign and return to us the enclosed duplicate hereof,
whereupon this letter and your acceptance shall represent a binding agreement
among the Company and the several Underwriters.



                          Very truly yours,

                          AirNet Communications Corporation

                          By: ........................................
                                Name:
                                Title:
<PAGE>   26
                                                                              26



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

Salomon Smith Barney Inc.
Hambrecht & Quist
Volpe Brown Whelan & Company

By:  Salomon Smith Barney Inc.


By:
     ................................................
     Name:
     Title:

For themselves and the other several Underwriters named in Schedule I to the
foregoing Agreement.
<PAGE>   27
                                   SCHEDULE I


                                              NUMBER OF UNDERWRITTEN
                                                 SECURITIES TO BE
UNDERWRITERS                                         PURCHASED

Salomon Smith Barney Inc. . . .

Hambrecht & Quist. . . . . . . .

Volpe Brown Whelan & Company. .














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

                  Total . . . .
                                                       ============
<PAGE>   28


[FORM OF LOCK-UP AGREEMENT]                                            EXHIBIT A





            [LETTERHEAD OF OFFICER, DIRECTOR OR MAJOR SHAREHOLDER OF
                                  CORPORATION]




                        AirNet Communications Corporation
                         Public Offering of Common Stock


                                                                September , 1999

Salomon Smith Barney Inc.
Hambrecht & Quist
Volpe Brown Whelan & Company
As Representatives of the several Underwriters,
c/o Salomon Smith Barney Inc.
388 Greenwich Street
New York, New York 10013

Ladies and Gentlemen:

                  This letter is being delivered to you in connection with the
proposed Underwriting Agreement (the "Underwriting Agreement") between AirNet
Communications Corporation, a Delaware corporation (the "Company"), and each of
you as representatives of a group of Underwriters named therein, relating to an
underwritten public offering of Common Stock, $          par value (the "Common
Stock"), of the Company.

                  In order to induce you and the other Underwriters to enter
into the Underwriting Agreement, the undersigned will not, without the prior
written consent of Salomon Smith Barney Inc., offer, sell, contract to sell,
pledge or otherwise dispose of, (or enter into any transaction which is designed
to, or might reasonably be expected to, result in the disposition (whether by
actual disposition or effective economic disposition due to cash settlement or
otherwise) by the Company or any affiliate of the Company or any person in
privity with the Company or any affiliate of the Company) directly or
indirectly, including the filing (or participation in the filing) of a
registration statement with the Securities and Exchange Commission in respect
of, or establish or increase a put equivalent position or liquidate or decrease
a call equivalent position within the meaning of Section 16 of the Securities
Exchange Act of 1934, as amended, and the rules and regulations of the
Securities and Exchange Commission promulgated thereunder with respect to, any
shares of capital stock of the Company or any securities convertible into, or
exercisable or exchangeable for such capital stock, or publicly announce an
intention to effect any such transaction, for a period of 180 days after the
date of the Underwriting Agreement, other than shares of Common Stock disposed
of as bona fide gifts approved by Salomon Smith Barney Inc.
<PAGE>   29
                                                                               2


                  If for any reason the Underwriting Agreement shall be
terminated prior to the Closing Date (as defined in the Underwriting Agreement),
the agreement set forth above shall likewise be terminated.


                                Yours very truly,

                                [SIGNATURE OF OFFICER, DIRECTOR OR MAJOR
                                STOCKHOLDER]

                                [NAME AND ADDRESS OF OFFICER, DIRECTOR OR
                                MAJOR STOCKHOLDER]
