PERIPHONICS CORP
S-3, 1996-10-25
TELEPHONE & TELEGRAPH APPARATUS
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<PAGE>
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER 25, 1996 
                                                     REGISTRATION NO. 333- 
============================================================================= 
                      SECURITIES AND EXCHANGE COMMISSION 
                            Washington, D.C. 20549 
                                    ------ 
                                   FORM S-3 
                            REGISTRATION STATEMENT 
                                    UNDER 
                          THE SECURITIES ACT OF 1933 
                                    ------ 
                           PERIPHONICS CORPORATION 
            (Exact name of Registrant as specified in its charter) 

                Delaware                                 11-2699509      
    (State or other jurisdiction of                   (I.R.S. Employer   
     incorporation or organization)                Identification Number)

                        4000 Veterans Memorial Highway 
                           Bohemia, New York 11716 
                                (516) 468-9000 
        (Address, including zip code, and telephone number, including 
           area code, of Registrant's principal executive offices) 

                                Peter J. Cohen 
                           Periphonics Corporation 
                        4000 Veterans Memorial Highway 
                           Bohemia, New York 11716 
                                (516) 468-9000 
                   (Name, address, including zip code, and 
         telephone number, including area code, of agent for service) 
                                    ------ 
                                   Copies to:
         Raymond S. Evans, Esq.                William B. Asher, Jr., Esq.  
        Norman M. Friedland, Esq.            Testa, Hurwitz & Thibeault, LLP
Ruskin, Moscou, Evans & Faltischek, P.C.              125 High Street        
          170 Old Country Road                 Boston, Massachusetts 02110  
         Mineola, New York 11501                     (617) 248-7000         
             (516) 663-6620                    (617) 248-7100 (facsimile)   
       (516) 663-6641 (facsimile) 

   Approximate date of commencement of proposed sale to the public: As soon 
as practicable after this Registration Statement becomes effective. 

   If the only securities being registered on this Form are being offered 
pursuant to dividend or interest reinvestment plans, check the following box 
[ ] 

   If any of the securities being registered on this Form are to be offered 
on a delayed or continuous basis pursuant to Rule 415 under the Securities 
Act of 1933, check the following box: [ ] 

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

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

   If delivery of the prospectus is expected to be made pursuant to Rule 434, 
please check the following box. [X] 

                       CALCULATION OF REGISTRATION FEE 
<TABLE>
<CAPTION>
=====================================================================================================================
                                                            Proposed Maximum    Proposed Maximum                    
Title of Each Class of Securities      Number of Shares      Offering Price        Aggregate           Amount of 
         to be Registered             to be Registered(2)    per Share(1)(2)    Offering Price(1)    Registration Fee 
- ----------------------------------------------------------------------------------------------------------------------
<S>                                        <C>                   <C>              <C>                  <C>       
   Common Stock, $.01 par value            1,265,000             $17.19           $21,745,350          $6,589.50 
======================================================================================================================
</TABLE>                            
(1) Estimated solely for purposes of calculating the registration fee and 
    based on the average bid and asked price as of a specified date within 
    five business days prior to the date of filing this Registration 
    Statement, pursuant to Rule 457(c). 
(2) The number of shares and the proposed maximum offering price per share 
    reflect the 2-for-1 stock split in the form of a stock dividend, payable 
    on October 31, 1996. 

The Registrant hereby amends this Registration Statement on such date or 
dates as may be necessary to delay its effective date until the Registrant 
shall file a further amendment which specifically states that this 
Registration Statement shall thereafter become effective in accordance with 
Section 8(a) of the Securities Act of 1933 or until this Registration 
Statement shall become effective on such date as the Commission, acting 
pursuant to said Section 8(a), may determine. 
============================================================================= 
<PAGE>

Information contained herein is subject to completion or amendment. A 
registration statement relating to these securities has been filed with the 
Securities and Exchange Commission. These securities may not be sold nor may 
offers to buy be accepted prior to the time the registration statement 
becomes effective. This prospectus shall not constitute an offer to sell or 
the solicitation of an offer to buy nor shall there be any sale of these 
securities in any State in which such offer, solicitation or sale would be 
unlawful prior to registration or qualification under the securities laws of 
any such State. 

                SUBJECT TO COMPLETION, DATED OCTOBER 25, 1996 
PROSPECTUS 
                               1,100,000 SHARES 

                                     LOGO 

                                 COMMON STOCK 

   All of the shares of Common Stock offered hereby are being sold by certain 
stockholders (the "Selling Stockholders") of Periphonics Corporation (the 
"Company"). See "Principal and Selling Stockholders." The Company will not 
receive any proceeds from the sale of shares by the Selling Stockholders. 

   The Company has declared a 2-for-1 stock split in the form of a stock 
dividend, to be paid on October 31, 1996 to holders of record on October 15, 
1996. All share and per share information in this Prospectus has been 
adjusted to reflect this stock dividend. 

   The Company's Common Stock is quoted on the Nasdaq National Market under 
the symbol "PERI." The last sale price for the Common Stock on October 24, 
1996, as reported by the Nasdaq National Market, was $18.125 per share. See 
"Price Range of Common Stock." 

   See "Risk Factors" on page 5 for a discussion of certain factors that 
should be considered by prospective purchasers of the Common Stock offered 
hereby. 
                                    ------ 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND 
   EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE 
     SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES 
        COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS 
          PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A 
                              CRIMINAL OFFENSE. 

- ----------------------------------------------------------------------------- 
                                                         Proceeds to 
                                       Underwriting        Selling 
                   Price to Public     Discount (1)    Stockholders (2) 
- ----------------------------------------------------------------------------- 
Per Share .....      $                   $                $ 
Total (3)  ....         $                  $                 $ 
- ----------------------------------------------------------------------------- 
(1) The Company and the Selling Stockholders have agreed to indemnify the 
    Underwriters against certain liabilities, including liabilities under the 
    Securities Act of 1933, as amended. See "Underwriting." 

(2) Before deducting expenses payable by the Selling Stockholders, estimated 
    at $275,000. 

(3) The Selling Stockholders have granted the Underwriters a 30-day option to 
    purchase up to 165,000 shares, solely to cover over-allotments, if any. 
    See "Underwriting." If all such shares are purchased, the total Price to 
    Public, Underwriting Discount and Proceeds to Selling Stockholders will 
    be $      , $       and $      , respectively. 

   The Common Stock is offered by the several Underwriters when, as and if 
delivered to and accepted by them and subject to their right to reject orders 
in whole or in part. It is expected that delivery of the certificates for the 
Common Stock will be made on or about       , 1996. 

WILLIAM BLAIR & COMPANY                                          DAIN BOSWORTH 
                                                                  Incorporated 

                 THE DATE OF THIS PROSPECTUS IS       , 1996 


<PAGE>

                     DOCUMENTS INCORPORATED BY REFERENCE 

   The following documents previously filed by the Company with the 
Securities and Exchange Commission (the "Commission") are hereby incorporated 
by reference in this Registration Statement: 

       (1) The Company's Annual Report on Form 10-K for the year ended May 31, 
           1996; 
       (2) The Company's Quarterly Report on Form 10-Q for the quarter ended 
           August 31, 1996; 
       (3) The Company's Current Report on Form 8-K filed with the Commission 
           on August 13, 1996; and 
       (4) The description of the Company's Common Stock contained in the 
           Company's Registration Statement on Form 8-A, as filed with the 
           Commission on February 21, 1995. 


   All documents subsequently filed by the Registrant pursuant to Sections 
13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of this 
Registration Statement and prior to the filing of a post-effective amendment 
which indicates that all securities offered have been sold or which removes 
from registration all securities then remaining unsold, shall be deemed to be 
incorporated by reference into this Registration Statement and to be a part 
hereof from the date of filing of such documents. Any statement contained in 
a document incorporated or deemed to be incorporated by reference herein 
shall be deemed to be modified or superseded for purposes of this 
Registration Statement to the extent that a statement contained herein or in 
any other subsequently filed document which also is or is deemed to be 
incorporated by reference herein modifies or supersedes such statement. Any 
such statement so modified or superseded shall not be deemed, except as so 
modified or superseded, to constitute a part of this Registration Statement. 

   The Company undertakes to provide without charge to each person to whom a 
Prospectus is delivered, upon oral or written request of such person, a copy 
of any document that has been incorporated in this Prospectus by reference. 
Requests for such documents should be directed to the Company at its offices 
located at 4000 Veterans Memorial Highway, Bohemia, New York 11716 (telephone 
number (516) 468-9000), Attention: Secretary. 
                                    ------ 

   IN CONNECTION WITH THIS OFFERING, CERTAIN UNDERWRITERS AND SELLING GROUP 
MEMBERS (IF ANY) OR THEIR RESPECTIVE AFFILIATES MAY ENGAGE IN PASSIVE MARKET 
MAKING TRANSACTIONS IN THE COMMON STOCK ON THE NASDAQ NATIONAL MARKET IN 
ACCORDANCE WITH RULE 10b-6A UNDER THE SECURITIES EXCHANGE ACT OF 1934. SEE 
"UNDERWRITING." 

   IN CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER- ALLOT OR 
EFFECT TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE 
COMMON STOCK OF THE COMPANY AT A LEVEL ABOVE THAT WHICH MIGHT OTHERWISE 
PREVAIL IN THE OPEN MARKET. SUCH STABILIZING, IF COMMENCED, MAY BE 
DISCONTINUED AT ANY TIME. 

                                        2
<PAGE>

                              PROSPECTUS SUMMARY 


   The following summary is qualified in its entirety by the more detailed 
information and financial statements and notes thereto appearing elsewhere or 
incorporated by reference in this Prospectus. All information in this 
Prospectus has been adjusted to reflect a 2-for-1 split of the Common Stock 
in the form of a stock dividend to be paid on October 31, 1996 to holders of 
record on October 15, 1996. Unless otherwise indicated, all information in 
this Prospectus assumes no exercise of the Underwriters' over-allotment 
option. This Prospectus contains or incorporates by reference forward-looking 
statements that involve risks and uncertainties. Such forward-looking 
statements include, but are not limited to, the Company's expectations 
regarding its future financial condition and operating results, product 
development, business strategy, market conditions and competitive 
environment. The Company's actual results could differ materially from those 
anticipated in these forward-looking statements as a result of certain 
factors, including those set forth under "Risk Factors" and elsewhere in this 
Prospectus. 

                                 THE COMPANY 

   Periphonics develops, builds, markets and supports high performance, 
automated interactive transaction processing systems that facilitate 
interaction with computer databases using a touch-tone telephone, speech 
input and output, Web browsers and fax output. The Company's interactive 
voice response ("IVR") and transaction processing systems are based on 
industry-standard, open architecture computer hardware and operating system 
software which, in combination with its own proprietary technology, address 
the needs of mid-size and large scale customer installations. The Company is 
an established leader within the mid-size and large scale segments of the IVR 
industry, having installed systems with over 150,000 ports since 1988, and 
with over 25 years of experience serving the IVR market. The Company's 
systems enable callers to use a touch-tone telephone to access information in 
an organization's computer database for a variety of transactions including 
accessing bank, mutual fund, or brokerage account data; checking the status 
of insurance claims or tax filings; obtaining loan or credit card rates; 
registering for college courses; and retrieving descriptions of products or 
services. 

                                 THE OFFERING 

<TABLE>
<CAPTION>
<S>                                                     <C>
Shares Offered by the Selling Stockholders  ........... 1,100,000 shares 
Shares Outstanding Immediately After the Offering  ...  13,625,132 shares (1) 
Nasdaq National Market Symbol  .......................  PERI 
Proceeds  ............................................  The Company will not receive any 
                                                        proceeds of the offering. 
</TABLE>
- ------ 
(1) Excludes (i) 136,832 shares of Common Stock issuable upon the exercise of 
    outstanding options granted by the Company under its 1986 Incentive Stock 
    Option Plan (the "1986 Plan") at exercise prices between $0.75 and $1.67 
    per share; (ii) 1,200,000 shares of Common Stock reserved for issuance 
    under the Company's 1995 Stock Option Plan, of which options to purchase 
    536,200 are outstanding at exercise prices between $7.00 and $18.00 per 
    share; and (iii) 200,000 shares of Common Stock reserved for issuance 
    under the Company's 1995 Non-Employee Director Stock Option Plan, of 
    which options to purchase 50,000 shares are outstanding at exercise 
    prices between $8.87 and $13.25 per share. See "Description of Capital 
    Stock." 


                                        3
<PAGE>

                  SUMMARY CONSOLIDATED FINANCIAL INFORMATION 
                    (IN THOUSANDS, EXCEPT PER SHARE DATA) 

<TABLE>
<CAPTION>
                                                                                             Three Months Ended 
                                               Fiscal Year Ended May 31,                         August 31, 
                               ----------------------------------------------------------  ---------------------- 
                                 1992        1993         1994      1995(1)       1996        1995         1996 
                               ---------   ---------    ---------   ---------   ---------   ---------    --------- 
<S>                            <C>         <C>          <C>         <C>         <C>         <C>          <C>
Statement of Earnings Data: 
   Total revenues ..........    $33,703     $39,398     $51,485     $64,777      $88,803     $17,544     $23,259 
   Gross profit ............     17,444      18,971      25,084      32,704       45,049       8,869      11,933 
   Earnings from operations .     2,820       1,503       4,874       6,874       14,529       2,392       3,348 
   Net earnings ............      1,469         543       1,951       3,184        9,215       1,450       2,315 
   Net earnings per common and 
     common equivalent share 
     (2)(3)  ...............    $  0.16     $  0.05     $  0.21     $  0.33      $  0.69     $  0.12     $  0.17 
   Weighted average common and 
     common equivalent shares 
     outstanding (2)(3)  ...      9,330       7,864       9,228       9,778       13,260      12,558      13,982 
</TABLE>

                                                            August 31, 1996 
                                                            --------------- 
Balance Sheet Data: 
   Working capital .....................................        $50,088 
   Total assets ........................................         78,555 
   Total debt ..........................................             -- 
   Common stockholders' equity..........................         61,222 

- ------ 
(1) On February 1, 1995, the Company accelerated the vesting of all 
    outstanding stock options under its 1986 Incentive Stock Option Plan (the 
    "1986 Plan"), thereby allowing all such options to be fully vested at 
    such date. The Company also relinquished its right to repurchase shares 
    obtained by employees under the 1986 Plan. As a result, the Company 
    recorded a nonrecurring, non-cash compensation charge of approximately 
    $1.25 million, or $0.13 per share. 

(2) On September 20, 1996, the Board of Directors approved a two-for-one 
    stock split of the Company's Common Stock in the form of a stock dividend 
    to be paid on October 31, 1996 to holders of record at the close of 
    business on October 15, 1996. Earnings per common and common equivalent 
    share and weighted average number of common and common equivalent shares 
    outstanding have been adjusted to reflect the stock split. 


(3) Net earnings per common and common equivalent share has been computed by 
    dividing net earnings, after reduction for preferred stock dividends, 
    when applicable, by the weighted average number of common shares and 
    common equivalent shares outstanding. Common equivalent shares included 
    in the computation represent common shares and equivalent shares 
    attributable to convertible preferred stock, when applicable, and 
    dilutive common equivalent shares from stock options (using the treasury 
    stock method). 

                                        4
<PAGE>

                                 RISK FACTORS 

   In addition to the other information contained or incorporated by 
reference in this Prospectus, the following investment considerations should 
be considered carefully by prospective investors in evaluating the Company, 
its business and an investment in the shares of Common Stock offered by this 
Prospectus. This Prospectus contains or incorporates by reference 
forward-looking statements which involve risks and uncertainties. Such 
forward-looking statements include, but are not limited to, the Company's 
expectations regarding its future financial condition and operating results, 
product development, business strategy, market conditions and competitive 
environment. The Company's actual results could differ materially from those 
anticipated in such forward-looking statements as a result of certain 
factors, including those set forth in the following risk factors and 
elsewhere in this Prospectus. 

   Variability of Quarterly Results; Limited Backlog. The Company's quarterly 
operating results may fluctuate as a result of a variety of factors, 
including the length of the sales cycle, the timing of orders from and 
shipments to customers, delays in development and customer acceptance of 
custom software applications, product development expenses, new product 
introductions or announcements by the Company or its competitors, levels of 
market acceptance for new products and the hiring and training of additional 
staff as well as general economic conditions. Historically, the size and 
timing of the Company's sales transactions, including international sales, 
have varied substantially from quarter to quarter, and the Company expects 
such variations to continue in future periods. The Company is typically able 
to deliver an IVR system within 60 days of receipt of the order and 
therefore, does not customarily have a significant long-term backlog. Because 
a significant portion of the Company's overhead is fixed in the short-term, 
the Company's results of operations may be materially adversely affected if 
revenues fall below the Company's expectations. During the fiscal year ended 
May 31, 1996, 30.1% of the Company's system sales and 37.3% of the Company's 
net earnings occurred in the Company's fourth fiscal quarter. Generally, the 
Company's inventory of computer hardware is determined by the Company's 
forecasts of sales during future periods. If management's forecasts of 
product sales and product mix prove to be substantially inaccurate, the 
Company may not have the necessary inventory available to deliver systems in 
a timely manner which may have a material adverse effect on the Company's 
results of operations during such period. 

   Highly Competitive Market Environment. The market for IVR and automated 
transaction processing systems is highly competitive. Certain of the 
Company's competitors have substantially greater financial, technical, 
marketing and sales resources than the Company. There can be no assurance 
that the Company's present or future competitors will not exert increased 
competitive pressures on the Company. In particular, the Company may in the 
future experience pricing pressures as the markets in which it competes 
mature, as new technologies are introduced or for other reasons, and such 
price competition could adversely affect the Company's market share and 
results of operations. In addition, many suppliers of voice mail systems and 
telecommunications systems have added IVR capabilities to some of their 
product offerings and offer IVR systems as a component or add-on of an 
overall sale of a voice mail system or a telecommunications switch. The 
Company also competes with providers of internet-based systems for 
transaction processing applications. Such internet-based systems may provide 
an alternative means of allowing customers to interact with computer-based 
information, thereby reducing the need for the Company's systems in certain 
markets. Although the Company believes it has certain marketing, technical 
and other advantages over many of its competitors, maintaining such 
advantages will require continued investment by the Company in product 
innovation and development, as well as in sales, marketing and customer 
support. There can be no assurance that the Company will be successful in 
such efforts. If the Company is unable to maintain such advantages, it may 
have a material adverse effect on the Company's results of operations. 

   Risk of Rapid Technological Change and New Product Introduction. The 
market for IVR and automated transaction processing systems is characterized 
by rapid continual technological change and improvements in hardware and 
software technology and in the features and capabilities of these systems. 
The Company's future success depends upon its ability to introduce new 
products and to add new features and enhancements to its existing systems 
that keep pace with technological and market developments, and that address 
the increasingly sophisticated and demanding needs of its customers. In order 
to remain competitive, the Company expects to continue to expend significant 
resources for research and development. 

                                      5
<PAGE>

There can be no assurance that the Company will be successful in developing 
and marketing, on a timely basis, product modifications or enhancements or 
new products that respond to technological advances by others, or that such 
new or enhanced products or features will adequately and competitively 
address the needs of the marketplace. 

   A portion of the Company's IVR systems sales depends, in part, upon 
customers' belief that the Company's UNIX and RISC-based systems offer more 
performance, features and benefits than PC-based systems offered by certain 
of the Company's competitors. As PC hardware and operating system software 
become more powerful, however, the capabilities of PC-based IVR systems are 
likely to increase and may become increasingly competitive alternatives to 
the Company's products in mid-size and large scale installations. 

   The Company's software products, like software programs generally, may 
contain undetected errors or bugs when introduced, or as new versions are 
released. While the Company's current products have not experienced 
post-release software errors that have had a significant financial or 
operational impact on the Company, there can be no assurance that such 
problems will not occur in the future, particularly as the Company's systems 
continue to become more complex and sophisticated. Such defective software 
may result in loss of or delay in market acceptance of the Company's 
products, warranty liability or product recalls. 

   Risk of International Sales. System sales to customers outside the U.S. 
accounted for approximately 34%, 35%, 36% and 26% of the Company's total 
system sales in the fiscal years ended May 31, 1994, 1995 and 1996 and the 
three months ended August 31, 1996, respectively. System sales to customers 
outside the United States, as a percentage of the Company's overall sales, 
fluctuate signficantly on a quarterly basis, and the percentage of such sales 
in a particular quarter may not be indicative of the percentage of 
international sales for the full fiscal year. The Company's international 
business is subject to a number of risks, including compliance with special 
national telecommunications standards and regulatory requirements, export 
regulations, currency exchange rates, tariffs and other barriers, 
difficulties in staffing and managing foreign subsidiary operations, 
potentially adverse tax consequences, longer payment cycles, greater 
difficulty in accounts receivable collections and specialized inventory 
requirements applicable to particular foreign countries. There can be no 
assurance that these factors will not have an adverse impact on the Company's 
future international sales or operating results. The Company does not 
currently engage in international currency hedging transactions. To the 
extent the Company is unable to match revenue received in foreign currencies 
with expenses paid in the same currency, it is exposed to possible losses on 
international currency transactions. Included in the Company's net earnings 
of $9.2 million for the fiscal year ended May 31, 1996 was a foreign exchange 
loss of approximately $0.3 million. Such foreign exchange loss consisted 
primarily of unrealized foreign exchange gains and losses resulting from the 
currency remeasurement of the financial statements (primarily inventories, 
accounts receivable and intercompany debt) of the Company's foreign 
subsidiaries into U.S. dollars. 

   Risk of Industry Concentration. In fiscal 1996 and for the three months 
ending August 31, 1996, approximately 37% and 24% of the Company's worldwide 
system sales were to customers in the telecommunications industry and 36% and 
33% of system sales were to U.S. customers within the financial services 
industry. Although the Company is broadening its vertical market focus to 
include additional industries such as government, higher education, 
healthcare services, transportation, electric and water utilities and 
distribution companies, it expects that it will continue to derive a 
substantial percentage of its system sales from telecommunications and 
financial services businesses. Accordingly, unfavorable economic conditions 
or factors that relate to these industries, particularly any such conditions 
that might result in reductions in capital expenditures by the Company's 
target customers, could have a material adverse affect on the Company's 
results of operations. The Company believes that in recent periods certain of 
its competitors have experienced results below their expectations 
particularly with respect to certain of their telecommunications customers. 
There can be no assurance that the Company will not experience similar 
difficulties with its telecommunications customers (or other vertical market 
customers) in future periods. During fiscal 1996 and the three months ended 
August 31, 1996, sales to governmental customers represented 13% and 25%, 
respectively, of system sales. The system sales to governmental customers in 
the three months ended August 31, 1996 reflect the delivery in that quarter 
of an unusually large system to one governmen- 

                                        6
<PAGE>


tal customer. System sales to any particular vertical market fluctuate as a 
percentage of total sales from quarter to quarter. As such, the percentage of 
sales to any particular vertical market in any given quarter may not be 
indicative of the percentage of sales for the full fiscal year. Future 
reductions in the budgets of government entities could result in reductions 
in capital expenditures by these potential customers. In addition, the 
Company has experienced longer payment cycles with its government customers 
than it typically has with customers in other vertical markets. 

   Limited Protection of Proprietary Technology. The Company's success is 
heavily dependent upon its proprietary software technology. The Company has 
no patents; consequently it relies on a combination of copyright, trademark 
and trade secret laws, employee and third-party non-disclosure agreements, 
and license agreements to protect its proprietary software technology. 
Nonetheless, there can be no assurance that the steps taken by the Company to 
protect its proprietary rights will be adequate to prevent misappropriation 
of such rights or that third parties will not independently develop 
functionally equivalent or superior software technology. The Company from 
time to time receives correspondence alleging that its products may infringe 
patents held by third parties. The Company believes that its products and 
other proprietary rights do not infringe the proprietary rights of third 
parties. There can be no assurance, however, that third parties will not 
assert infringement claims against the Company in the future or that any such 
claims will not require the Company to enter into license arrangements or 
result in protracted and costly litigation, regardless of the merits of such 
claims. There also can be no assurance that the Company will be able to 
obtain licenses to disputed third party technology or that such licenses, if 
available, would be available on commercially reasonable terms. The Company 
is aware that certain segments of the voice processing industry, particularly 
voice mail/voice messaging systems, are affected by active and costly 
litigation. There can be no assurance that as the Company's interactive 
transaction processing systems evolve and provide features which extend their 
uses and capabilities, possibly to include certain voice mail/voice messaging 
and/or additional internet-related features, the Company will not become 
involved in, or otherwise be affected by, litigation which may or may not be 
meritorious. 

   Dependence on Suppliers. In certain instances, despite the availability of 
multiple supply sources, the Company elects to procure certain components or 
parts from a single source to maintain quality control or to develop a 
strategic relationship with a supplier. Although the Company has entered into 
long-term supply contracts with certain of its vendors, the Company has no 
assurance that components and parts will be available as required, or that 
prices of such components and parts will not increase. In certain instances 
the manufacture of components used by the Company in its products has been 
discontinued by suppliers and the Company has been required to seek 
functionally similar substitutes or substantially increase its inventories of 
these discontinued components for its future use. If the Company were to 
experience significant delays, interruptions, discontinuations or reductions 
in the supply of certain components and parts purchased from suppliers, the 
Company's results of operations could be materially adversely affected. 

   Dependence on Key Personnel. The Company's success during the foreseeable 
future will depend largely upon the continued services of its executive 
officers, each of whom has entered into an employment agreement with the 
Company. Each employment agreement contains non-competition covenants that 
extend for a period of up to two years following termination of employment. 
The Company does not have key-man life insurance on its executive officers. 
The Company's success also depends in part on its ability to attract and 
retain qualified managerial, technical and sales and marketing personnel. The 
Company's results of operations could be materially adversely affected if the 
Company were unable to attract, hire, assimilate and train these personnel in 
a timely manner. 

   Anti-Takeover Provisions and Rights Plan. Certain "anti-takeover" 
provisions of the Delaware General Corporation Law, among other matters, 
restrict the ability of certain stockholders to effect a merger or business 
combination or obtain control of the Company. In addition, the Company's 
By-Laws provide for a classified Board of Directors with staggered three-year 
terms. The Company has an authorized class of 1,000,000 shares of preferred 
stock, which may be issued by the Board of Directors on such terms and with 
such rights, preferences and designations as the Board of Directors may 
determine, without further stockholder action. Issuance of such preferred 
stock, depending upon the rights, preferences 


                                        7
<PAGE>


and designations thereof, may have the effect of delaying, deferring or 
preventing a change in control of the Company. On July 15, 1996, the Board of 
Directors of the Company approved a Rights Plan designed to protect 
stockholders in the event of an unsolicited attempt to acquire the Company, 
including a gradual accumulation of shares in the open market, a partial or 
two-tier tender offer that does not treat all stockholders equally, and other 
takeover tactics which the Board of Directors believes may be abusive and not 
in the best interests of stockholders. The implementation of the Rights Plan 
increases the Board of Directors' power in the event of an unsolicited 
proposal by giving the Board of Directors more time and the opportunity to 
evaluate an offer and exercise its good faith business judgment to take 
appropriate steps to protect and advance stockholder interests by negotiating 
with the bidder, auctioning the Company, implementing a recapitalization or 
restructuring designed as an alternative to the offer, or taking other 
action. 

   Potential Volatility of Stock Price. The market price of the shares of the 
Company's Common Stock may be highly volatile. Factors such as fluctuations 
in the Company's quarterly operating results, announcements of technological 
innovations or new commercial products by the Company or its competitors, and 
conditions in the markets in which the Company and its customers compete may 
have a significant effect on the market price and marketability of the Common 
Stock. Prices for many technology company stocks, including the Common Stock, 
may fluctuate widely as a result of the factors cited above or for reasons 
that are not directly related to the operating performance of such companies, 
including general fluctuations in stock prices and changes in earnings 
estimates or recommendations by securities analysts. See "Price Range of 
Common Stock." 

                                        8
<PAGE>

                                 THE COMPANY 

   Periphonics develops, builds, markets and supports high performance, 
automated interactive transaction processing systems that facilitate 
interaction with computer databases using a touch-tone telephone, speech 
input and output, Web browsers and fax output. The Company's interactive 
voice response ("IVR") and transaction processing systems are based on 
industry-standard open architecture computer hardware and operating system 
software which, in combination with its own proprietary technology, address 
the needs of mid-size and large scale customer installations. The Company is 
an established leader within the mid-size and large scale segments of the IVR 
industry, having installed systems with over 150,000 ports since 1988, and 
with over 25 years of experience serving the IVR market. The Company's 
systems enable callers to use a touch-tone telephone to access information in 
an organization's computer database for a variety of transactions including 
accessing bank, mutual fund, or brokerage account data; checking the status 
of insurance claims or tax filings; obtaining loan or credit card rates; 
registering for college courses; and retrieving descriptions of particular 
products or services. 

   Periphonics focuses its resources on the needs of specific vertical 
markets in North America including telecommunications, financial services, 
government and higher education and on selected international markets. This 
focus enables the Company to demonstrate its commitment to these markets and 
to identify and offer new features and services that meet the changing IVR 
and transaction processing needs of those market segments. Periphonics 
systems have been implemented by a wide variety of customers including many 
of the major telecommunications and financial services companies worldwide. 
The Company markets its products through direct sales, marketing and 
pre-sales technical support personnel deployed in 15 cities across the U.S., 
as well as in Canada, Mexico, Germany, the United Kingdom and Singapore. 

   IVR and automated transaction processing systems represent an increasingly 
important element in the telecommunications and data processing 
infrastructure for many customer service-oriented organizations. These 
systems enable businesses and other organizations to offer their customers 
24-hour access to information, to provide new revenue generating services, to 
better utilize the capabilities and capacities of their telephone and 
computer systems, to increase the productivity of their customer support 
staffs and to thereby offer better services to customers in less time and at 
a lower cost. 

   Based on information available from Dataquest, the Company believes that 
sales of IVR systems in the United States have grown at a compound annual 
rate of 19% from approximately $475 million in 1991 to approximately $939 
million in 1995. The Company believes that sales of mid-to-large scale IVR 
systems have grown at least as fast as the overall market during this period 
and that the growth in the sale of IVR systems has been due to several 
factors, including improvements in product features, public acceptance of IVR 
systems as a means for obtaining information or executing transactions, and 
competitive pressures on organizations to offer improved customer service 
while reducing costs. 

   The Company's products consist of a family of scalable systems called the 
VPS Series, which can be configured for small (4-16 ports), mid-size (20 to 
128 ports) and large scale installations (up to 960 ports) or as a network of 
multiple systems configured to handle thousands of telephone ports. 
Periphonics has developed its systems to run on industry-standard RISC-based 
hardware and the UNIX operating system in order to take advantage of the 
continual performance improvements and price reductions of industry-standard 
computer systems. This allows the Company to focus its product development 
efforts on expanding its systems' IVR and transaction processing features and 
interfaces to a broad array of telephone switches and mainframe and 
client/server computer and database systems. The highly scalable architecture 
of the Company's systems readily accommodates expansion and upgrades while 
preserving a customer's original investment and extending the useful life of 
installed systems. 

   Most IVR installations require customized application software. Therefore, 
Periphonics maintains a skilled staff of programmers which utilizes proven 
project-management techniques to develop customer applications in a timely 
and economical manner. This is often an important factor in the Company's 
selection as the supplier of large scale, turnkey IVR systems. The Company 
also licenses its software tools to support customers that develop 
application programs with their own staff. Reflecting the mission-critical 

                                        9
<PAGE>


nature of many of the applications based on the Company's IVR products, 
Periphonics offers direct maintenance and support services 24-hours per day. 
The Company believes that it has one of the largest technical support and 
field service organizations dedicated solely to IVR maintenance. 

   The Company's principal facilities and executive offices are located at 
4000 Veterans Memorial Highway, Bohemia, New York 11716, its telephone number 
is (516) 468-9000 and its web-site address is www.peri.com. Information 
contained in the Company's Web site shall not be deemed to be a part of this 
Prospectus. 

                               USE OF PROCEEDS 

   The Company will not receive any of the proceeds from the sale of the 
Common Stock by the Selling Stockholders. See "Principal and Selling 
Stockholders." 

                         PRICE RANGE OF COMMON STOCK 

   The Company's Common Stock is traded on the Nasdaq National Market under 
the symbol "PERI." The following table sets forth, for the periods indicated, 
the range of high and low sale prices, by quarter, for the Common Stock as 
reported by the Nasdaq National Market. 

                                                            Price Range 
                                                      ------------------------ 
                                                       High             Low 
                                                      --------         ------- 
Fiscal 1995 
Fourth Quarter Ended May 31, 1995  ..........         $ 8 5/8          $ 7 3/8 
Fiscal 1996 
First Quarter Ended August 31, 1995  ........          12 1/4            7 3/8 
Second Quarter Ended November 30, 1995  .....          14 3/4           11 3/4 
Third Quarter Ended February 29, 1996  ......          13 7/8           10 1/2 
Fourth Quarter Ended May 31, 1996  ..........          18               10 3/8 
Fiscal 1997 
First Quarter Ended August 31, 1996  ........          20 1/8           12 7/8 
Second Quarter (through October 24, 1996)  ..          21               16 1/2 

   All sales prices have been adjusted to reflect the 2-for-1 stock split to 
be effected as a stock dividend payable on October 31, 1996 to shareholders 
of record on October 15, 1996. 

   On October 24, 1996, the last reported sale price of the Company's Common 
Stock as reported on the Nasdaq National Market was 18.125, as adjusted to 
reflect the 2-for-1 stock dividend payable on October 31, 1996. 

                               DIVIDEND POLICY 

   Since its initial public offering in 1995, the Company has not paid cash 
dividends on its Common Stock and does not anticipate paying cash dividends 
in the foreseeable future. The Company currently intends to retain its 
earnings to finance future growth of its business. 

                                       10
<PAGE>

                     SELECTED CONSOLIDATED FINANCIAL DATA 

   The following selected consolidated financial data as of and for each of 
the five fiscal years in the period ended May 31, 1996 has been derived from 
the audited consolidated financial statements of the Company. The report of 
Deloitte & Touche LLP, independent auditors, as of May 31, 1995 and 1996, and 
for each of the three years in the period ended May 31, 1996 is included in 
the Form 10-K for the year ended May 31, 1996, incorporated by reference 
herein. 

   The selected consolidated financial data for the three month periods ended 
August 31, 1995 and 1996 are derived from the unaudited consolidated 
financial statements of the Company. In the opinion of management, the 
unaudited consolidated financial statements have been prepared on the same 
basis as the audited consolidated financial statements and include all 
adjustments, consisting only of normal recurring adjustments, necessary for a 
fair presentation of the financial position and results of operations for 
such periods. Results for the three months ended August 31, 1996 are not 
necessarily indicative of the results to be expected for the fiscal year 
ending May 31, 1997. The selected consolidated financial data should be read 
in conjunction with and is qualified in its entirety by, the Company's 
consolidated financial statements, related notes and other financial 
information included in the Form 10-K for the year ended May 31, 1996, and 
the Form 10-Q for the quarter ended August 31, 1996 incorporated by reference 
herein. 

<TABLE>
<CAPTION>
                                                                                                       Three Months Ended 
                                                         Fiscal Year Ended May 31,                         August 31, 
                                         ----------------------------------------------------------  ---------------------- 
                                           1992        1993         1994        1995        1996        1995         1996 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
                                                               (in thousands, except per share data) 
<S>                                      <C>         <C>          <C>         <C>         <C>         <C>          <C>
Statement of Earnings Data: 
System sales  ........................    $24,787     $29,906     $41,192     $51,747      $71,800     $13,887     $17,755 
Service revenues  ....................      8,916       9,492      10,293      13,030       17,003       3,657       5,504 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
 Total revenues  .....................     33,703      39,398      51,485      64,777       88,803      17,544      23,259 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
Cost of system sales  ................     10,055      13,677      18,653      23,686       32,798       6,408       8,022 
Cost of service revenues  ............      6,204       6,750       7,748       8,387       10,956       2,267       3,304 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
 Total cost of revenues  .............     16,259      20,427      26,401      32,073       43,754       8,675      11,326 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
Gross profit  ........................     17,444      18,971      25,084      32,704       45,049       8,869      11,933 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
Selling, general and administrative  .     11,309      13,062      15,249      18,749       22,587       4,865       6,165 
Research and development  ............      3,315       4,406       4,961       5,831        7,933       1,612       2,420 
Non-recurring, noncash compensation 
  charge (1) .........................         --          --          --       1,250           --          --          -- 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
 Total operating expenses  ...........     14,624      17,468      20,210      25,830       30,520       6,477       8,585 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
Earnings from operations  ............      2,820       1,503       4,874       6,874       14,529       2,392       3,348 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
Interest expense  ....................       (617)       (673)       (936)       (992)          --          --          -- 
Interest and other income  ...........        242         117         159         170          885         191         329 
Foreign exchange gain (loss)  ........         22         175        (464)         88         (345)       (125)        118 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
 Total other (expenses) income  ......       (353)       (381)     (1,241)       (734)         540          66         447 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
Earnings before provision for income 
  taxes and cumulative effect of 
  change in accounting principle .....      2,467       1,122       3,633       6,140       15,069       2,458       3,795 
Provision for income taxes  ..........        998         579       1,599       2,956        5,854       1,008       1,480 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
Earnings before cumulative effect of 
  change in accounting principle .....      1,469         543       2,034       3,184        9,215       1,450       2,315 
Cumulative effect of change in 
  accounting principle (2) ...........         --          --          83          --           --          --          -- 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
Net earnings  ........................    $ 1,469     $   543     $ 1,951     $ 3,184      $ 9,215     $ 1,450     $ 2,315 
                                         =========   =========    =========   =========   =========   =========    ========= 
Earnings per common and common 
  equivalent share (3)(4): 
Earnings before cumulative effect of 
  change in accounting principle .....    $  0.16     $  0.05     $  0.22     $  0.33      $  0.69     $  0.12     $  0.17 
Cumulative effect of change in 
  accounting principle (2) ...........         --          --       (0.01)         --           --          --          -- 
                                         ---------   ---------    ---------   ---------   ---------   ---------    --------- 
Earnings per common share  ...........    $  0.16     $  0.05     $  0.21     $  0.33      $  0.69     $  0.12     $  0.17 
                                         =========   =========    =========   =========   =========   =========    ========= 
Weighted average number of common and 
  common equivalent shares (3)(4) ....      9,330       7,864       9,228       9,778       13,260      12,558      13,982 
                                         =========   =========    =========   =========   =========   =========    ========= 
</TABLE>

                                       11
<PAGE>

             SELECTED CONSOLIDATED FINANCIAL DATA -- (CONTINUED) 

<TABLE>
<CAPTION>
                                                                 May 31,                                 August 31, 
                                        ---------------------------------------------------------  ---------------------- 
                                          1992       1993         1994        1995        1996        1995         1996 
                                        --------   ---------    ---------   ---------   ---------   ---------    --------- 
                                                              (in thousands, except per share data) 
<S>                                     <C>        <C>          <C>         <C>         <C>         <C>          <C>
Balance Sheet Data: 
Working capital  ....................   $ 9,228     $14,574     $13,837     $27,550      $48,476     $29,010     $50,088 
Total assets  .......................    21,439      28,460      33,714      47,722       75,103      50,166      78,555 
Total debt  .........................     5,439      11,285      10,032          --           --          --          -- 
Redeemable cumulative convertible 
  preferred stock issued by subsidiary    1,215       1,215       1,215       1,215           --       1,215          -- 
Redeemable cumulative convertible 
  preferred stock ...................     4,500       4,500       4,500          --           --          --          -- 
Common stockholders' equity  ........     4,729       5,337       6,289      33,576       58,781      35,182      61,222 

</TABLE>

- ------ 
(1) On February 1, 1995, the Company accelerated the vesting of all 
    outstanding stock options under its 1986 Incentive Stock Option Plan (the 
    "1986 Plan"), thereby allowing all such options to be fully vested at 
    such date. The Company also relinquished its right to repurchase shares 
    obtained by employees under the 1986 Plan. As a result, the Company 
    recorded a non-recurring, noncash compensation charge of approximately 
    $1.25 million, or $0.13 per share. 

(2) During fiscal 1994, the Company changed its method of accounting for 
    income taxes to conform with Statement of Financial Accounting Standards 
    No. 109. 

(3) On September 20, 1996, the Board of Directors approved a two-for-one 
    stock split of the Company's Common Stock in the form of a stock dividend 
    to be paid on October 31, 1996 to holders of record on October 15, 1996. 
    Earnings per common and common equivalent share and weighted average 
    number of common and common equivalent shares outstanding have been 
    retroactively adjusted to reflect the stock split. 


(4) Earnings per common and common equivalent share has been computed by 
    dividing net earnings, after reduction for preferred stock dividends, 
    when applicable, by the weighted average number of common shares and 
    common equivalent shares outstanding. Common equivalent shares included 
    in the computation represent common equivalent shares from convertible 
    preferred stock, when applicable, and dilutive common equivalent shares 
    from stock options (using the treasury stock method). 

                                       12
<PAGE>

              MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL 
                     CONDITION AND RESULTS OF OPERATIONS 

THREE MONTHS ENDED AUGUST 31, 1995 AND 1996 

   Total Revenues. Total revenues increased by 32.6% to $23.3 million in the 
three months ended August 31, 1996 from $17.5 million in the three months 
ended August 31, 1995. System sales increased by 27.9% to $17.8 million in 
the three months ended August 31, 1996 from $13.9 million in the three months 
ended August 31, 1995. The increase in system sales was primarily due to an 
increase in unit sales volume. Service revenues increased by 50.5% to $5.5 
million in the three months ended August 31, 1996 from $3.7 million in the 
three months ended August 31, 1995, primarily due to the addition of more 
units to the service base as well as an increase in installation revenues. 

   Gross Profit. The Company's gross profit increased by $3.0 million, or 
34.5%, to $11.9 million in the three months ended August 31, 1996 from $8.9 
million in the three months ended August 31, 1995. Gross profit as a 
percentage of total revenues increased to 51.3% in the three months ended 
August 31, 1996 from 50.6% in the three months ended August 31, 1995. Gross 
profit on system sales increased by $2.3 million, or 30.1%, to $9.7 million 
in the three months ended August 31, 1996 from $7.5 million in the three 
months ended August 31, 1995. The gross margin on system sales increased to 
54.8% in the three months ended August 31, 1996 from 53.9% in the three 
months ended August 31, 1995. The Company attributes this increase primarily 
to manufacturing and productivity efficiencies of scale resulting from 
increased sales volume during the period. Gross profit on service revenues 
increased by $0.8 million, or 58.3%, to $2.2 million in the three months 
ended August 31, 1996 from $1.4 million in the three months ended August 31, 
1995. Gross margin on service revenues increased to 40.0% in the three months 
ended August 31, 1996 from 38.0% in the three months ended August 31, 1995. 
This increase was attributable to higher installation revenues and an 
increase in the service base. 

   Selling, General and Administrative Expenses. Selling, General and 
Administrative ("SG&A") expenses were $6.2 million and $4.9 million for the 
three months ended August 31, 1996 and 1995, respectively, or 26.5% and 27.7% 
of total revenues, respectively. The increase in the dollar amount of SG&A 
expenses was primarily due to both the continued expansion of the Company's 
sales effort in domestic and international markets and to increases in SG&A 
expenses necessary to support the increased level of sales. SG&A expenses 
decreased as a percentage of total revenues due to the Company's ability to 
leverage certain fixed expenses over its growing revenue base. 

   Research and Development Expenses. Research and Development ("R&D") 
expenses were $2.4 million and $1.6 million for the three months ended August 
31, 1996 and 1995, respectively, or 10.4% and 9.2% of total revenues, 
respectively. The increase in the dollar amount of R&D expenses reflects the 
continued expansion of the Company's R&D staff which increased to 100 from 79 
between August 31, 1995 and August 31, 1996. R&D expenses are charged to 
operations as incurred, and no software development costs have been 
capitalized. The Company expects the dollar amount of R&D expenditures to 
continue to increase, although such expenses as a percentage of total 
revenues will vary from period to period. 

   Other Income (Expense). Other income was $0.4 and $0.1 million for the 
three months ended August 31, 1996 and 1995 respectively. Interest and other 
income increased to $0.3 million in the three months ended August 31, 1996 
from $0.2 million in the three months ended August 31, 1995 primarily due to 
increased cash balances. The Company had a foreign exchange gain of $0.1 
million for the three months ended August 31, 1996 compared to a foreign 
exchange loss of $0.1 million for the three months ended August 1995. To the 
extent the Company is unable to match revenue received in foreign currencies 
with expense paid in the same currency it is exposed to fluctuations on 
international currency transactions. 

   Income Taxes. Variations in the customary relationship between the 
provision for income taxes and the statutory federal income tax rate 
primarily result from foreign subsidiaries' net operating losses which did 
not produce current tax benefits, the utilization of research and development 
tax credits and state and local income taxes. The Company's effective income 
tax rates were 39.0% and 41.0% for the three months ended August 31, 1996 and 
1995, respectively. 

                                       13
<PAGE>

   Foreign Operations. The Company's European subsidiary operated at 
approximately a $0.4 million loss during the three months ended August 31, 
1996 as compared to approximately break-even during the three months ended 
August 31, 1995. The increase in such losses was attributed to a decrease in 
the gross margin and increase in the dollar amount of SG&A expenses to 
support the expansion of the sales and marketing effort in the three months 
ended August 31, 1996. Transfers from the Company's North American operations 
to its European subsidiary are accounted for at cost, plus a reasonable 
profit. 

FISCAL YEARS ENDED MAY 31, 1995 AND 1996 

   Total Revenues. Total revenues increased by 37.1%, from $64.8 million in 
fiscal 1995 to $88.8 million in fiscal 1996. System sales increased by 38.8%, 
from $51.7 million in fiscal 1995 to $71.8 million in fiscal 1996. The 
increase in system sales was due to a 35.8% increase in domestic sales and a 
44.5% increase in international sales and was in part related to the 
introduction of the VPS/is system, a new RISC and UNIX based product. The 
increase in system sales was primarily due to increases in unit sales volume. 
Service revenues increased by 30.5%, from $13.0 million in fiscal 1995 to 
$17.0 million in fiscal 1996, primarily due to the addition of units to the 
service base, as well as an increase in installation revenues. 

   Gross Profit. The Company's gross profit increased by $12.3 million from 
$32.7 million in fiscal 1995 to $45.0 million in fiscal 1996. Gross profit as 
a percentage of total revenues increased from 50.5% in fiscal 1995 to 50.7% 
in fiscal 1996. Gross profit on system sales increased by $10.9 million, or 
39.0%, from $28.1 million in fiscal 1995 to $39.0 million in fiscal 1996. 
Gross margin on system sales increased from 54.2% in fiscal 1995 to 54.3% in 
fiscal 1996. Gross profit on service revenues increased by $1.4 million, or 
30.2%, from $4.6 million in fiscal 1995 to $6.0 million in fiscal 1996. Gross 
margin on service revenues was 35.6% in both fiscal 1995 and fiscal 1996. 

   Selling, General and Administrative Expenses. SG&A expenses were $18.7 
million and $22.6 million for fiscal 1995 and 1996, respectively, or 28.9% 
and 25.4% of total revenues, respectively. The increase in the dollar amount 
of the SG&A expenses was primarily due to expansion of the sales effort in 
both domestic and international markets, increased sales commissions due to 
the significant increase in revenues and increases in expenses to support the 
increased level of sales. SG&A expenses decreased as a percentage of total 
revenues due to the Company's ability to leverage certain fixed expenses over 
its growing revenue base. 

   Research and Development Expenses. R&D expenses were $5.8 million and $7.9 
million for fiscal 1995 and 1996, respectively, or 9.0% and 8.9% of total 
revenues, respectively. The increase in the dollar amount of research and 
development expense reflects the continued expansion of the Company's R&D 
staff which increased from 69 to 101 between May 31, 1995 and 1996. 

   Non-recurring Noncash Stock Option Compensation Expense. On February 1, 
1995, the Company accelerated the vesting on all outstanding stock options 
under its 1986 Incentive Stock Option Plan ("the 1986 Plan"), thereby 
allowing all such options to be fully vested at such date. The Company also 
relinquished its right to repurchase shares obtained by employees under the 
1986 Plan. As a result, the Company recorded a non-recurring noncash 
compensation charge of approximately $1.25 million, equal to the difference 
between the formula price as of February 1, 1995 (which was calculated 
utilizing a formula based upon the book value of the Company's Common Stock) 
of all outstanding stock options issued subsequent to January 28, 1988 and 
their estimated value on February 1, 1995 (based upon the initial public 
offering price of the Company's Common Stock). 

   Other Income (Expense). Other income was $0.5 million for fiscal 1996 as 
compared to other expense of $0.7 million in fiscal 1995. Interest expense 
decreased from $1.0 million in fiscal 1995 to $0.0 in fiscal 1996, due to the 
elimination of debt by the use of proceeds from the Company's initial public 
offering. Interest income was $0.2 million and $0.9 million in fiscal 1995 
and fiscal 1996. Foreign exchange gain (loss) decreased from a gain of $0.1 
million in fiscal 1995 to a loss of $0.4 million in fiscal 1996. 

   Income Taxes. Variations in the customary relationship between the 
provision for income taxes and the statutory income tax rate primarily result 
from foreign subsidiaries' net operating losses which did not produce current 
tax benefits, the utilization of research and development tax credits and 
state and local 

                                       14
<PAGE>

income taxes. The Company's effective income tax rates were 48.1% and 38.8% 
for fiscal 1995 and fiscal 1996, respectively. Excluding the effect of the 
non-recurring noncash compensation charge the effective income tax rate for 
fiscal 1995 would have been 40.0%. 

   Foreign Operations. The Company's European subsidiary had an operating 
profit of $0.8 million during fiscal 1996 as compared to an operating loss of 
$0.2 million during fiscal 1995. The increase in profitability was primarily 
due to an increase in the gross margin on increased system sales. Transfers 
from the Company's North American operations to its European subsidiary are 
accounted for at cost, plus a reasonable profit. The cost of revenues for the 
Company's European subsidiary includes approximately $0.9 million and $0.6 
million of intercompany gross profit earned by the Company's North American 
operations on system sales by the European subsidiary to third parties during 
fiscal 1995 and fiscal 1996, respectively. 

LIQUIDITY AND CAPITAL RESOURCES 

   The Company's principal cash requirement to date has been to fund working 
capital and capital expenditures in order to support the growth in revenues. 
Historically, the Company has primarily financed this requirement through 
cash flow from operations, bank borrowings and two public offerings of the 
Company's Common Stock in 1995, which resulted in an aggregate of $41,100,000 
of net proceeds to the Company. Cash flow from operations was $2.4 million 
for the three months ended August 31, 1996 and $9.6 million for the year 
ended May 31, 1996. At August 31, 1996, the Company had working capital of 
$50.1 million, including $28.4 million of cash and cash equivalents and 
short-term investments. 

   The average days sales outstanding (calculated by dividing the net 
accounts receivable at the balance sheet date for each period by the average 
sales per day during the quarter immediately preceding the balance sheet 
date) were approximately 93 days and 83 days at August 31, 1996 and May 31, 
1996, respectively. The Company attributes the increase in days' sales 
outstanding primarily to increased sales to government agencies which 
generally have longer payment cycles. To the extent the Company's sales mix 
continues to shift towards government agencies, the average day's sales 
outstanding is expected to increase. 

   The Company's inventory as of August 31, 1996 and May 31, 1996 was $13.1 
million and $11.1 million respectively. The increase in inventory from May 
31, 1996 to August 31, 1996 reflects an investment by the Company to support 
future sales growth. 

   In January 1995, the Company increased its line of credit to $8.0 million 
with interest charged at the prime rate plus 0.25%. The line of credit 
expires on November 30, 1996. As of August 31, 1996, the Company had no 
borrowings under this line of credit. The Company is presently negotiating to 
increase, extend and restructure the line of credit to a revolving line of 
credit, with a term loan option. 

   The Company made capital expenditures totaling $1.5 million and $0.7 
million during the three months ended August 31, 1996 and 1995, respectively. 
The Company expects that its capital expenditures in the current fiscal year 
for facilities expansion, possible technology licenses and acquisitions, and 
additional computer equipment utilized for development and testing of the 
Company's products, will be substantially greater than its capital 
expenditures in the prior several years. 

   The Company believes that its existing sources of working capital and 
borrowings available under its revolving line of credit will be sufficient to 
fund its operations and capital expenditures for at least 12 months. 


                                       15
<PAGE>

                      PRINCIPAL AND SELLING STOCKHOLDERS 

   The following table sets forth certain information regarding the 
beneficial ownership of the Company's Common Stock as of the date of this 
Prospectus, as adjusted to reflect the 2-for-1 stock dividend to be paid on 
October 31, 1996, and the sale of the shares of Common Stock offered hereby, 
by (i) each person who is known to the Company to own beneficially more than 
5% of the outstanding shares of Common Stock, (ii) each of the Company's 
Named Executives, (iii) each of the selling stockholders and (iv) all 
Executive Officers and Directors of the Company as a group. 

<TABLE>
<CAPTION>
                                               Shares Beneficially                            Shares Beneficially 
      Name and Address of Beneficial             Owned Prior to        Shares To Be Sold          Owned After 
               Owner (1) (2)                      Offering (2)          In Offering (3)          Offering (3) 
 -----------------------------------------  ------------------------    -----------------  ------------------------ 
                                               Number       Percent                           Number       Percent 
                                             -----------   ---------    -----------------   -----------   --------- 
<S>                                         <C>            <C>          <C>                 <C>           <C>
Peter J. Cohen (4)  ......................      916,490       6.7%           296,962          619,528        4.5% 
George W. Cole  ..........................      550,750       4.0%           178,454          372,296        2.7% 
Richard A. Daniels (4)  ..................      780,228       5.7%           252,808          527,420        3.9% 
Terence Meehan  ..........................      367,166       2.7%           118,968          248,198        1.8% 
Kevin J. O'Brien  ........................      367,166       2.7%           118,968          248,198        1.8% 
Jayandra Patel  ..........................      413,060       3.0%           133,840          279,220        2.0% 
Edward Blum (5)  .........................        6,250          *             --               6,250           * 
Peter Breitstone (5)  ....................        6,250          *             --               6,250           * 
GeoCapital Corporation (1)  ..............      869,400       6.4%             --             869,400        6.4% 
OppenheimerFunds, Inc. (1)  ..............      740,800       5.4%             --             740,800        5.4% 
All Executive Officers and Directors as a group 
  (nine persons) (5)(6) ..................    3,535,360      25.9%         1,100,000        2,435,360       17.9% 

</TABLE>

- ------ 
* Less than 1% 
(1) Unless otherwise indicated, all addresses are care of Periphonics 
    Corporation, 4000 Veterans Memorial Highway, Bohemia, New York 11716. 
    GeoCapital Corporation's address is 767 Fifth Avenue, New York, New York 
    10153. OppenheimerFunds, Inc.'s address is Two World Trade Center, New 
    York, New York 10048. Information with respect to GeoCapital Corporation 
    and OppenheimerFunds, Inc. is based on the Schedule 13-G filing made by 
    such companies as of June 30, 1996. 

(2) A person is deemed to be the beneficial owner of securities that can be 
    acquired by such person within 60 days from the date of this Prospectus 
    upon the exercise of options. Each beneficial owner's percentage 
    ownership is determined by assuming that options that are held by such 
    person (but not those held by any other person) and that are exercisable 
    within 60 days from the date of this Prospectus have been exercised. 
    Unless otherwise noted, the Company believes that all persons named in 
    the table have sole voting and investment power with respect to all 
    shares of Common Stock beneficially owned by them. 

(3) Assumes no exercise of the over-allotment option. The Selling 
    Stockholders have granted the Underwriters a 30-day option to purchase up 
    to 165,000 shares of Common Stock solely to cover over-allotments, if 
    any. If such option is exercised in full, Messrs. Cohen, Cole, Daniels, 
    Meehan, O'Brien and Patel will sell an additional 44,542, 26,768, 37,922, 
    17,846, 17,846 and 20,076 shares of Common Stock, respectively, and their 
    percentage of beneficial ownership after the offering will be 4.2%, 2.5%, 
    3.6%, 1.7%, 1.7% and 1.9%, respectively. 

(4) Of the shares beneficially owned by Mr. Cohen, 821,398 are held of record 
    in a Grantor Retained Annuity Trust for the benefit of Mr. Cohen's 
    children, of which Mr. Cohen is a co-trustee and retains voting and 
    dispositive power with respect to the shares. All the shares being sold 
    by Mr. Cohen are held of record in the Peter J. Cohen Grantor Trust. All 
    780,228 shares beneficially owned by Mr. Daniels are held of record in 
    the Richard A. Daniels Grantor Retained Annuity Trust for the benefit of 
    Mr. Daniels' children of which Mr. Daniels is the sole trustee. 

(5) Does not include options to purchase 37,500 shares of Common Stock not 
    exercisable within 60 days. 

(6) Includes 120,500 shares subject to options exercisable within 60 days of 
    this Prospectus. 

                                       16
<PAGE>

                         DESCRIPTION OF CAPITAL STOCK 

   The Company's authorized capital stock consists of 15,000,000 shares of 
Common Stock, par value $.01 per share, and 1,000,000 shares of Preferred 
Stock, par value $.01 per share. As of October 23, 1996, there were 
13,625,132 shares of Common Stock (reflecting the 2-for-1 stock split in the 
form of a stock dividend payable on October 31, 1996) issued and outstanding 
held of record by 139 stockholders, and no shares of Preferred Stock are 
currently outstanding. As of October 23, 1996, there were outstanding options 
to purchase an additional 723,032 shares of the Company's Common Stock. At 
the Company's annual meeting on November 8, 1996 the shareholders will vote 
on a proposal to increase the authorized Common Stock to 30,000,000 shares. 

COMMON STOCK 

   Holders of shares of Common Stock are entitled to one vote for each share 
held of record on matters to be voted on by the stockholders of the Company. 
Holders of shares of Common Stock will be entitled to receive dividends, 
subject to the superior rights of Preferred Stockholders, if any, when, as 
and if declared by the Board of Directors. The Company currently intends to 
retain all future earnings for use in the operation of its business and, 
therefore, does not anticipate paying any cash dividends on its Common Stock 
in the foreseeable future. Upon the dissolution, liquidation or sale of 
substantially all of the assets of the Company, after payment in full of all 
amounts required to be paid to creditors and subject to the rights, if any, 
of the holders of any Preferred Stock, the holders of the Common Stock are 
entitled to share ratably in the assets of the Company legally available for 
distribution to its stockholders. Holders of Common Stock have no preemptive, 
subscription, redemption or conversion rights. All of the issued and 
outstanding shares of Common Stock are, and all shares of Common Stock to be 
sold in this offering will be, duly authorized, validly issued, fully paid 
and non-assessable. 

PREFERRED STOCK 

   The Company's Board of Directors may without further action by the 
Company's stockholders, from time to time, direct the issuance of shares of 
Preferred Stock in series and may, at the time of issuance, determine the 
rights, preferences and limitation of each series. The holders of Preferred 
Stock would normally be entitled to receive a preference payment in the event 
of any liquidation, dissolution or winding-up of the Company before any 
payment is made to the holders of Common Stock. 

   The ability of the Company's Board of Directors to issue Preferred Stock 
may delay or prevent a takeover or change in control of the Company. To the 
extent that this ability has this effect, removal of the Company's incumbent 
Board of Directors and management may be rendered more difficult. Further, 
this may have an adverse impact on the ability of stockholders of the Company 
to participate in a tender or exchange offer for the Common Stock and in so 
doing diminish the market value of the Common Stock. 

RIGHTS PLAN 

   On July 15, 1996, the Board of Directors of the Company approved a Rights 
Plan designed to protect stockholders in the event of an unsolicited attempt 
to acquire the Company, including a gradual accumulation of shares in the 
open market, a partial or two-tier tender offer that does not treat all 
stockholders equally, and other takeover tactics which the Board of Directors 
believes may be abusive and not in the best interests of stockholders. The 
implementation of the Rights Plan increases the Board of Director's power in 
the event of an unsolicited proposal by giving the Board of Directors more 
time and the opportunity to evaluate an offer and exercise its good faith 
business judgment to take appropriate steps to protect and advance 
stockholder interests by negotiating with the bidder, auctioning the Company, 
implementing a recapitalization or restructuring designed as an alternative 
to the offer, or taking other action. 

LIMITATION OF LIABILITY AND INDEMNIFICATION OF DIRECTORS AND OFFICERS 

   The Company's Amended and Restated Certificate of Incorporation (the 
"Certificate") provides that a director shall not be personally liable to the 
Company or its stockholders for monetary damages for breach of fiduciary duty 
as a director, except: (i) for any breach of the director's duty of loyalty 
to the Company or its stockholders; (ii) for acts or omissions not in good 
faith or which involve intentional misconduct or knowing violations of law; 
(iii) for liability under Section 174 of the Delaware General Corporation Law 
(relating to certain unlawful dividends, stock repurchases or stock 
redemptions); or (iv) for any transaction 

                                       17
<PAGE>

from which the director derived any improper personal benefit. The effect of 
this provision in the Certificate is to eliminate the rights of the Company 
and its stockholders (through stockholders' derivative suits on behalf of the 
Company) to recover monetary damages against a director for breach of the 
fiduciary duty of care as a director (including breaches resulting from 
negligent or grossly negligent behavior) except in certain limited 
situations. This provision does not limit or eliminate the rights of the 
Company or any stockholder to seek non-monetary relief such as an injunction 
or rescission in the event of a breach of a director's duty of care. These 
provisions will not alter the liability of Directors under federal securities 
laws. 

   The Company's By-Laws provide that the Company shall indemnify each 
Director and such of the Company's officers, employees and agents as the 
Board of Directors shall determine from time to time to the fullest extent 
provided by the laws of the State of Delaware. 

   The Company carries insurance providing indemnification, under certain 
circumstances, to all of its directors and officers for claims against them 
by reason of, among other things, any act or failure to act in their 
capacities as directors or officers. No sums have been paid to any past or 
present director or officer under this or any prior indemnification insurance 
policy. 

   The Company has also entered into Indemnity agreements with all of its 
directors and executive officers. The Indemnity Agreements provide for 
indemnification of the Company's directors and executive officers to the 
fullest extent permitted by the provisions of the General Corporation Law of 
the State of Delaware. The Indemnity Agreements also provide that the Company 
will pay any costs which an indemnitee actually and reasonably incurs because 
of any claims made against him by reason of the fact that he is or was a 
director or officer of the Company, except that the Company is not obligated 
to make any payment which the Company is prohibited by law from paying as 
indemnity, or where (a) a final determination is rendered on a claim based 
upon the indemnitee's obtaining a personal profit or advantage to which he 
was not legally entitled; (b) a final determination is rendered on the claim 
for an accounting of profits made in connection with a violation of Section 
16(b) of the Securities Exchange Act of 1934, or similar state or common law 
provisions; (c) a claim where the indemnitee was adjudged to be deliberately 
dishonest; or (d) a final determination is rendered that indemnification is 
not lawful. 

   Insofar as indemnification for liabilities arising under the Act may be 
permitted to Directors, officers or persons controlling the Company pursuant 
to the foregoing provisions, the Company has been informed that in the 
opinion of the Securities and Exchange Commission, such indemnification is 
against public policy as expressed in the Act and is therefore unenforceable. 

TRANSFER AGENT AND REGISTRAR 

   The transfer agent and registrar for the Common Stock is American Stock 
Transfer and Trust Company. 

                                       18
<PAGE>

                                 UNDERWRITING 

   The Company and the Selling Stockholders have entered into an Underwriting 
Agreement (the "Underwriting Agreement") with William Blair & Company, L.L.C. 
and Dain Bosworth Incorporated (the "Underwriters"). Subject to the terms and 
conditions set forth in the Underwriting Agreement, the Selling Stockholders 
have agreed to sell to each of the Underwriters, and each of the Underwriters 
has severally agreed to purchase from the Selling Stockholders, the number of 
shares of Common Stock set forth opposite each Underwriter's name in the 
table below: 

                                                                  Number of 
Underwriters                                                        Shares 
 -----------------------------------                             ------------- 
William Blair & Company, L.L.C.  ... 
Dain Bosworth Incorporated  ........ 
                                                                 ------------- 
     Total  ........................                              1,100,000 
                                                                 ============= 

   In the Underwriting Agreement, the Underwriters have agreed, subject to 
the terms and conditions set forth therein, to purchase all of the Common 
Stock being sold pursuant to the Underwriting Agreement if any of the Common 
Stock being sold pursuant to the Underwriting Agreement (excluding shares 
covered by the over-allotment option granted therein) is purchased. In the 
event of a default by any Underwriter, the Underwriting Agreement provides 
that, in certain circumstances, purchase commitments of the non-default 
Underwriters shall be increased or the Underwriting Agreement may be 
terminated. 

   The Underwriters have advised the Selling Stockholders that they propose 
to offer the shares of Common Stock to the public initially at the public 
offering price set forth on the cover page of this Prospectus and to certain 
dealers at such price less a concession of not more than $     per share. 
Additionally, the Underwriters may allow, and such dealers may reallow, a 
concession not in excess of $    per share to certain other dealers. After 
the shares are released for sale to the public, the public offering price and 
other selling terms may be changed by the Underwriters. 

   The Selling Stockholders have granted to the Underwriters an option, 
exercisable within 30 days after the date of this Prospectus, to purchase up 
to 165,000 shares of Common Stock at the same price per share to be paid by 
the Underwriters for the other shares offered hereby. If the Underwriters 
purchase any such additional shares pursuant to this option, each of the 
Underwriters will be committed to purchase such additional shares in 
approximately the same proportion as set forth in the table above. The 
Underwriters may exercise the option only for the purpose of covering 
over-allotments, if any, made in connection with the distribution of the 
Common Stock offered hereby. The additional shares purchased pursuant to this 
option shall be allocated among each of the Selling Stockholders in 
proportion to their total commitments to provide shares for this option. 

   The Company and the Selling Stockholders have agreed that they will not 
sell, contract to sell or otherwise dispose of any shares of Common Stock for 
a period of 180 days after the date of this Prospectus without the written 
consent of the Underwriters, except for the Common Stock offered hereby. 

   In general, the rules of the Commission will prohibit the Underwriters 
from making a market in the Company's Common Stock during the "cooling off" 
period immediately preceding the commencement of sales in this offering. The 
Commission has, however, adopted exemptions from these rules that permit 
passive market making under certain conditions. These rules permit an 
underwriter to continue to make a market subject to the conditions, among 
others, that its bid not exceed the highest bid by a market maker not 
connected with the offering and that its net purchases on any one trading day 
not exceed prescribed limits. Pursuant to these exemptions, certain 
Underwriters, selling group members (if any) or their respective affiliates 
intend to engage in passive market making in the Company's Common Stock 
during the cooling off period. 

   The Company and the Selling Stockholders have agreed to indemnify the 
Underwriters and their controlling persons against certain liabilities, 
including liabilities under the Securities Act of 1933, as amended, or to 
contribute to payments the Underwriters may be required to make in respect 
thereof. 

   The Underwriters do not intend to confirm sales to any accounts over which 
they exercise discretionary authority. 

                                       19
<PAGE>

                                LEGAL MATTERS 

   The validity and issuance of the Common Stock offered hereby will be 
passed upon for the Company and the Selling Stockholders by Ruskin, Moscou, 
Evans & Faltischek, P.C., Mineola, New York. Certain legal matters in 
connection with the offering will be passed upon for the Underwriters by 
Testa, Hurwitz & Thibeault, LLP, Boston, Massachusetts. As of the date of 
this Prospectus, certain members of Ruskin, Moscou, Evans & Faltischek, P.C., 
and members of their immediate family own, in the aggregate, approximately 
15,200 shares of the Company's Common Stock. 

                                   EXPERTS 

   The financial statements and related financial statement schedules 
incorporated in this Prospectus by reference from the Company's Annual Report 
on Form 10-K for the year ended May 31, 1996 have been audited by Deloitte & 
Touche LLP, independent auditors, as stated in their report, which is 
incorporated herein by reference, and has been so incorporated in reliance 
upon the report of such firm given upon their authority as experts in 
accounting and auditing. 

                            ADDITIONAL INFORMATION 

   The Company has filed with the Securities and Exchange Commission (the 
"Commission") in Washington, D.C. a Registration Statement on Form S-3 under 
the Act, with respect to the Common Stock offered by this Prospectus. This 
Prospectus does not contain all the information set forth in the Registration 
Statement and the exhibits and schedules thereto. For further information 
with respect to the Company and the Common Stock, reference is made to the 
Registration Statement and such exhibits and schedules. Statements in the 
Prospectus as to the contents of any contract or other document referred to 
are not necessarily complete and in each instance reference is made to the 
copy of such contract or other document filed as an exhibit to the 
Registration Statement, each such statement being qualified in all respects 
by such reference. The Registration Statement and the exhibits and schedules 
thereto may be inspected by anyone without charge at the principal office of 
the Commission at the Public Reference Section of the Commission at Room 
1024, Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549, and at 
the regional offices of the Commission located at Seven World Trade Center, 
New York, New York 10048 and Northwestern Atrium Center, 500 West Madison 
Street, Suite 1400, Chicago, Illinois 60661 and copies of all or any part of 
it may be obtained from the Commission upon payment of a prescribed fee. The 
Registration Statement, including the exhibits and schedules thereto, can 
also be accessed through the EDGAR terminals in the Commission's Public 
Interest Rooms in Washington, Chicago and New York or through the World Wide 
Web at http://www.sec.gov. 

   The Company is subject to the information requirements of the Securities 
Exchange Act of 1934 (the "Exchange Act"), and in accordance therewith, files 
reports and other information with the Securities and Exchange Commission 
(the "Commission"). Such reports and other information can be inspected and 
copied at the public reference facilities maintained by the Commission at 
Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549 and at the 
Commission's regional offices located at Seven World Trade Center, 13th 
Floor, New York, New York 10048 and Northwestern Atrium Center, 500 West 
Madison Street, Chicago, Illinois 60661. Copies of such material can be 
obtained at prescribed rates from the Public Reference Section of the 
Commission, 450 Fifth Street NW, Washington, D.C. 20549. The Company's Common 
Stock is quoted on the NASDAQ Stock Market and reports and other information 
concerning the Company may also be inspected and copies at the office of the 
NASDAQ Stock Market, Inc., 8513 Key West Avenue, Rockville, Maryland 20850. 

   The Company furnishes Annual Reports to the holders of its securities 
which contain financial information which has been examined and reported 
upon, with an opinion expressed by, its independent certified public 
accountants. 

                                       20
<PAGE>

   No dealer, sales representative or other person has been authorized to 
give any information or to make any representation in connection with this 
offering other than those contained in this Prospectus, and if given or made, 
such information or representation must not be relied upon as having been 
authorized by the Company or any Underwriters. This Prospectus does not 
constitute an offer to sell or a solicitation of an offer to buy Common Stock 
by anyone in any jurisdiction in which such an offer or solicitation is not 
authorized, or in which the persons making such an offer or solicitation is 
not qualified to do so, or to any person to whom it is unlawful to make such 
an offer or solicitation. Neither the delivery of this Prospectus nor any 
sale made hereunder shall, under any circumstance, create any implication 
that the information contained herein is correct as of any date subsequent to 
its date. 
                                    ------ 

                              TABLE OF CONTENTS 

                                                                       Page 
                                                                      -------- 
Documents Incorporated by Reference  .......                             2 
Prospectus Summary  ........................                             3 
Risk Factors  ..............................                             5 
The Company  ...............................                             9 
Use of Proceeds  ...........................                            10 
Price Range of Common Stock  ...............                            10 
Dividend Policy  ...........................                            10 
Selected Consolidated Financial Data  ......                            11 
Management's Discussion and Analysis of 
  Financial Condition and Results of 
  Operations ...............................                            13 
Principal and Selling Stockholders  ........                            16 
Description of Capital Stock  ..............                            17 
Underwriting  ..............................                            19 
Legal Matters  .............................                            20 
Experts  ...................................                            20 
Additional Information  ....................                            20 

<PAGE>


                               1,100,000 SHARES 


                                     LOGO 


                                 COMMON STOCK 
                                    ------ 
                                  PROSPECTUS 
                                       , 1996 
                                    ------ 
                           WILLIAM BLAIR & COMPANY 
                                DAIN BOSWORTH 
                                 Incorporated 


<PAGE>

                                   PART II 
                    INFORMATION NOT REQUIRED IN PROSPECTUS 

OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION 

   The following table sets forth the estimated expenses payable in 
connection with the sale and distribution of the securities being registered, 
all of which will be paid by the Selling Stockholders. 

                                                        Total 
                                                    ------------- 
SEC Registration Fee  .....................          $  6,589.50 
NASD Filing Fee  ..........................             2,674.54 
Printing and Engraving Expenses ..........             50,000.00 
Legal Fees and Expenses  ..................           115,000.00 
Accounting Fees and Expenses  .............            40,000.00 
Miscellaneous  ............................            60,735.96 
                                                     ----------- 
  Total  ..................................          $275,000.00 
                                                     =========== 

INDEMNIFICATION OF DIRECTORS AND OFFICERS 

   Section 145 of the Delaware General Corporation Law empowers a corporation 
to indemnify its Directors and officers and to purchase insurance with 
respect to liability arising out of their capacity or status as Directors and 
officers provided that this provision shall not eliminate or limit the 
liability of a Director (i) for any breach of the director's duty of loyalty 
to the Company or its stockholders, (ii) for acts or omissions not in good 
faith or which involve intentional misconduct or a knowing violation of law, 
(iii) arising under Section 174 of the Delaware General Corporation Law, or 
(iv) for any transaction from which the director derived an improper personal 
benefit. 

   The Delaware General Corporation Law provides further that the 
indemnification permitted thereunder shall not be deemed exclusive of any 
other rights to which the Directors and officers may be entitled under the 
Company' By-Laws, any agreement, vote of shareholders or otherwise. 

   The Company's Amended and Restated Certificate of Incorporation eliminates 
the personal liability of Directors and officers to the fullest extent 
permitted by Section 102(b)(7) of the Delaware General Corporation Law. 

   The effect of the foregoing is to require the Company to indemnify its 
officers and Directors for any claim arising against such persons in their 
official capacities if such person acted in good faith and in a manner 
reasonably believed to be in or not opposed to the best interests of the 
Company, and, with respect to any criminal action or proceeding, had no 
reasonable cause to believe their conduct was unlawful. 

   The Company carries insurance providing indemnification, under certain 
circumstances, to all of its directors and officers for claims against them 
by reason of, among other things, any act or failure to act in their 
capacities as directors or officers. No sums have been paid to any past or 
present director or officer of the Company under this or any prior 
indemnification insurance policy. 

   The Company has also entered into Indemnity Agreements with all of its 
directors and executive officers. The Indemnity Agreements provide for 
indemnification of the Company's directors and executive officers to the 
fullest extent permitted by the provisions of the General Corporation Law of 
the State of Delaware. The Indemnity Agreements also provide that the Company 
will pay any costs which an indemnitee actually and reasonably incurs because 
of any claims made against him by reason of the fact that he is or was a 
director or officer of the Company, except that the Company is not obligated 
to make any pay- 

                                     II-1
<PAGE>

ment which the Company is prohibited by law from paying as indemnity, or 
where (a) a final determination is rendered on a claim based upon the 
indemnitee's obtaining a personal profit or advantage to which he was not 
legally entitled; (b) a final determination is rendered on a claim for an 
accounting of profits made in connection with a violation of Section 16(b) of 
the Securities Exchange Act of 1934, or similar state or common law 
provisions; (c) a claim where the indemnitee was adjudged to be deliberately 
dishonest; or (d) a final determination is rendered that indemnification is 
not lawful. 

   Insofar as indemnification for liabilities arising under the Act may be 
permitted to Directors, officers or persons controlling the Company pursuant 
to the foregoing provisions, the Company has been informed that in the 
opinion of the Securities and Exchange Commission, such indemnification is 
against public policy as expressed in the Act and is therefore unenforceable. 

EXHIBITS AND FINANCIAL STATEMENT SCHEDULES 

  (a) Exhibits 

<TABLE>
<CAPTION>
<S>         <C>
1.1         Proposed Form of Underwriting Agreement 
5.1*        Opinion and Consent of Ruskin, Moscou, Evans & Faltischek, P.C. 
23.1        Consent of Deloitte & Touche LLP, Independent Auditors 
23.2*       Consent of Ruskin, Moscou, Evans & Faltischek, P.C. (included in Exhibit 5.1) 
25.1        Power of Attorney (included on signature page) 
</TABLE>

- ------ 
*To be filed by amendment. 


UNDERTAKINGS 

   The undersigned registrant hereby undertakes that, for purposes of 
determining any liability under the Securities Act of 1933, each filing of 
the registrant's annual report pursuant to Section 13(a) or Section 15(d) of 
the Securities Exchange Act of 1934 (and, where applicable, each filing of an 
employee benefit plan's annual report pursuant to Section 15(d) of the 
Securities Exchange Act of 1934) that is incorporated by reference in the 
registration statement shall be deemed to be a new registration statement 
relating to the securities offered therein, and the offering of such 
securities at that time shall be deemed to be the initial bona fide offering 
thereof. 

   Insofar as indemnification for liabilities arising under the Act may be 
permitted to Directors, officers and controlling persons of the Registrant 
pursuant to the foregoing provisions, or otherwise, the Registrant has been 
advised that in the opinion of the Securities and Exchange Commission such 
indemnification is against public policy as expressed in the Act and is, 
therefore, unenforceable. In the event that a claim for indemnification 
against such liabilities (other than the payment by the Registrant of 
expenses incurred or paid by a director, officer or controlling person of the 
Registrant in the successful defense of any action, suit or proceeding) is 
asserted by such director, officer or controlling person in connection with 
the securities being registered, the Registrant will, unless in the opinion 
of its counsel the matter has been settled by controlling precedent, submit 
to a court of appropriate jurisdiction the question whether such 
indemnification by it is against public policy as expressed in the Act and 
will be governed by the final adjudication of such issues. 

   The undersigned Registrant hereby undertakes that: 

   (1) For purposes of determining any liability under the Act, the 
information omitted from the form of Prospectus filed as part of this 
Registration Statement in reliance upon Rule 430A and continued in a form of 
prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) or 
497(b) under the Act shall be deemed to be part of this Registration 
Statement as of the time it was declared effective. 

                                      II-2
<PAGE>

   (2) For the purpose of determining any liability under the Act each 
post-effective amendment that contains a form of Prospectus shall be deemed 
to be a new Registration Statement relating to the securities therein and the 
offering of such securities at that time shall be deemed to be the initial 
bona fide offering thereof. 

                                      II-3
<PAGE>

                                   SIGNATURES


   Pursuant to the requirements of the Act, the Registrant has duly caused 
this Registration Statement to be signed on its behalf by the undersigned 
thereunto duly authorized, in Bohemia, New York, on October 25, 1996 

                                          PERIPHONICS CORPORATION 
                                          By: /s/ Peter J. Cohen 
                                              ------------------------------- 
                                                  Peter J. Cohen, President 

Dated: October 25, 1996 

   Pursuant to the requirements of the Act, this Registration Statement has 
been signed by the following persons in the capacities and on the dates 
indicated. Each person whose signature appears below hereby authorizes each 
of Peter J. Cohen and Kevin J. O'Brien with full power of substitution to 
execute in the name of such person and to file any amendment or post 
effective amendment to this Registration Statement (or any Registration 
Statement filed pursuant to Rule 462) making such changes in this 
Registration Statement as the Registrant deems appropriate and appoints each 
of Peter J. Cohen and Kevin J. O'Brien with full power of substitution, 
attorney-in-fact to sign and to file any amendment and post- effective 
amendment to this Registration Statement. 


<TABLE>
<CAPTION>
        Signature                             Title                            Date 
 ------------------------   -----------------------------------------   ------------------- 
<S>                        <C>                                          <C>
/s/ Peter J. Cohen         Chairman of the Board, President and          October 25, 1996
  -----------------------  Chief Executive Officer (Principal 
      Peter J. Cohen       Operating Officer)                   

/s/Richard A. Daniels      Senior Vice President-Sales, Treasurer        October 25, 1996
  -----------------------  and Director                          
    Richard A. Daniels                                      
                           
                           
/s/ Kevin J. O'Brien       Chief Financial Officer, Vice                                   
  -----------------------  President-Finance and Administration          October 25, 1996  
     Kevin J. O'Brien      (Principal Accounting Officer),                                 
                           Secretary and Director                                          

/s/ Jayandra Patel         Senior Vice President-Product                 October 25, 1996
  -----------------------  Development, Assistant Treasurer                                
      Jayandra Patel       and Director                                                    
                                                                                           
/s/ Peter Breitstone       Director                                      October 25, 1996  
  -----------------------                                                                  
     Peter Breitstone                                                                      
                                                                                           
/s/ Edward H. Blum         Director                                      October 25, 1996  
  -----------------------                                                                  
      Edward H. Blum        
</TABLE>               
                           
                                      II-4
<PAGE>

                                EXHIBIT INDEX 

<TABLE>
<CAPTION>
   Exhibit 
     No.      Description                                                                           Page 
 -----------   --------------------------------------------------------------------------------   -------- 
<S>           <C>                                                                                 <C>
1.1           Proposed Form of Underwriting Agreement 
5.1*          Opinion and Consent of Ruskin, Moscou, Evans & Faltischek, P.C. 
23.1          Consent of Deloitte & Touche LLP, Independent Auditors 
23.2*         Consent of Ruskin, Moscou, Evans & Faltischek, P.C. (included in Exhibit 5.1) 
25.1          Power of Attorney (included on signature page) 
</TABLE>

- ------
*To be filed by amendment.






<PAGE>



                                                                  Draft 10/24/96

                             PERIPHONICS CORPORATION

                         1,100,000 Shares Common Stock1

                             UNDERWRITING AGREEMENT


                                                       _________, 199_


William Blair & Company, L.L.C.
Dain Bosworth Incorporated
 As Representatives of the Several
 Underwriters Named in Schedule A
222 West Adams Street
Chicago, Illinois 60606

Ladies and Gentlemen:

         SECTION 1. Introductory. Periphonics Corporation ("Company"), a
Delaware corporation, has an authorized capital stock consisting of 1,000,000
shares, $.01 par value, of Preferred Stock ("Preferred Stock"), none of which
were outstanding as of______________, 1996, and 15,000,000 shares, $.01 par
value, of Common Stock ("Common Stock"), of which ___________ shares were
outstanding as of such date. Certain stockholders of the Company, acting
severally and not jointly (collectively referred to as the "Selling
Stockholders" and named in Schedule B) propose to sell 1,100,000 shares of the
Company's issued and outstanding Common Stock hereinafter refereed to as the
"Firm Shares" to the several underwriters named in Schedule A as it may be
amended by the Pricing Agreement hereinafter defined ("Underwriters"), who are
acting severally and not jointly. In addition, the Selling Stockholders propose
to grant to the Underwriters an option to purchase up to 165,000 additional
shares of Common Stock ("Option Shares") as provided in Section 5 hereof. The
Firm Shares and, to the extent such option is exercised, the Option Shares are
hereinafter collectively referred to as the "Shares."

         You have advised the Selling Stockholders that the Underwriters propose
to make a public offering of their respective portions of the Shares as soon as
you deem advisable after the registration statement hereinafter referred to
becomes effective, if it has not yet become effective, and the Pricing Agreement
hereinafter defined has been executed and delivered.



- --------

      1 Plus an option to acquire up to 165,000 additional shares to
        cover overallotments.



<PAGE>

         Prior to the purchase and public offering of the Shares by the several
Underwriters, the Company, the Selling Stockholders and the Representatives,
acting on behalf of the several Underwriters, shall enter into an agreement
substantially in the form of Exhibit A hereto (the "Pricing Agreement"). The
Pricing Agreement may take the form of an exchange of any standard form of
written telecommunication between the Company, the Selling Stockholders and the
Representatives and shall specify such applicable information as is indicated in
Exhibit A hereto. The offering of the Shares will be governed by this Agreement,
as supplemented by the Pricing Agreement. From and after the date of the
execution and delivery of the Pricing Agreement, this Agreement shall be deemed
to incorporate the Pricing Agreement.

         The Company and each of the Selling Stockholders hereby confirm their
agreements with the Underwriters as follows:
     
         SECTION 2.  Representations and Warranties of the Company.  The Company
represents and warrants to the several Underwriters that:

                  (a) A registration statement on Form S-3 (File No. 333-______)
and a related preliminary prospectus with respect to the Shares have been
prepared and filed with the Securities and Exchange Commission ("Commission") by
the Company in conformity with the requirements of the Securities Act of 1933,
as amended, and the rules and regulations of the Commission thereunder
(collectively, the "1933 Act;" all references herein to specific rules are rules
promulgated under the 1933 Act); and the Company has so prepared and has filed
such amendments thereto, if any, and such amended preliminary prospectuses as
may have been required to the date hereof. If the Company has elected not to
rely upon Rule 430A, the Company has prepared and will promptly file an
amendment to the registration statement and an amended prospectus. If the
Company has elected to rely upon Rule 430A, it will prepare and file either (i)
a prospectus pursuant to Rule 424(b) that discloses the information previously
omitted from the prospectus in reliance upon Rule 430A or (ii) a term sheet or
abbreviated term sheet (the "Term Sheet") as described in and pursuant to Rules
434 and 424(b) that supplements the preliminary prospectus included in the
Registration Statement at the time it becomes effective omitting information in
reliance upon Rule 430A (the "Preliminary Prospectus"). There have been or will
promptly be delivered to you three signed copies of such registration statement
and amendments, together with three copies of all documents incorporated by
reference therein, three copies of each exhibit filed therewith, and conformed
copies of such registration statement and amendments (but without exhibits) and
of the related preliminary prospectus or prospectuses and final forms of
prospectus or the Term Sheet and Preliminary Prospectus for each of the
Underwriters each to be, to the extent applicable, identical to the
electronically transmitted copies filed with the Commission pursuant to the
Commission's Electronic Data Gathering Analysis and Retrieval System ("EDGAR"),
except to the extent permitted by Regulation S-T.

         The registration statement and prospectus as amended on file with the
Commission at the time the registration statement became or becomes effective,
including (i) the information deemed to be part of the registration statement at
the time of effectiveness pursuant to Rule 430A(b) and (ii) a registration
statement, if any, filed pursuant to Rule 462(b) relating to the Shares, if
applicable, are hereinafter called the "Registration Statement" and the
"Prospectus," respectively, except that if the prospectus filed by the Company
pursuant to Rule 424(b) differs from the prospectus on file at the time the
Registration Statement became or becomes effective, the term "Prospectus" shall
refer to the Rule 424(b) prospectus from and after the time it is filed with the
Commission or transmitted to the Commission for filing. For purpose of this
Agreement, all references to the Registration Statement and the Prospectus, or
any amendment or supplement to the foregoing shall be deemed to include the
respective copies filed with the Commission pursuant to EDGAR. Any reference
herein to any preliminary prospectus or the Prospectus shall be deemed to
include the documents incorporated by reference therein pursuant to Form S-3
under the Securities Exchange Act of 1934, as amended, and the rules and
regulations of the Commission thereunder(hereinafter collectively referred to as
the "Exchange Act.") ("Incorporated Document"), as of the date of such
preliminary prospectus or Prospectus, as the case may be. Any document filed by
the Company under the Exchange Act after the effective date of the Registration
Statement or the date of the Prospectus and incorporated by reference in the
Prospectus shall be deemed to be included in the Registration Statement and the
Prospectus as of the date of such filing.
<PAGE>

         The Incorporated Documents heretofore filed, when they were filed with
the Commission, conformed in all material respects to the requirement of the
Exchange Act and none of such documents contained an untrue statement of a
material fact or omitted to state a material fact required to be stated therein
or necessary to make the statements therein not misleading; and any further
Incorporated Documents so filed will, when they are filed, conform in all
material respects with the requirements of the Exchange Act and none of such
documents will contain an untrue statement of a material fact or will omit to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading.

         (b) The Commission has not issued any order preventing or suspending
the use of any preliminary prospectus, and each preliminary prospectus has
conformed in all material respects with the requirements of the 1933 Act and, as
of its date, has not included any untrue statement of a material fact or omitted
to state a material fact necessary to make the statements therein not
misleading; and when the Registration Statement became or becomes effective, and
at all times subsequent thereto, up to the First Closing Date or the Second
Closing Date hereinafter defined, as the case may be, the Registration
Statement, including the information deemed to be part of the Registration
Statement at the time of effectiveness pursuant to Rule 430A(b), if applicable,
and the Prospectus and any amendments or supplements thereto, contained or will
contain all statements that are required to be stated therein in accordance with
the 1933 Act and in all material respects conformed or will in all material
respects conform to the requirements of the 1933 Act, and neither the
Registration Statement nor the Prospectus, nor any amendment or supplement
thereto, included or will include any untrue statement of a material fact or
omitted or will omit to state a material fact required to be stated therein or
necessary to make the statements therein not misleading; provided, however, that
the Company makes no representation or warranty as to information contained in
or omitted from any preliminary prospectus, the Registration Statement, the
Prospectus or any such amendment or supplement 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 use in the
preparation thereof.
<PAGE>

         (c) The Company and its subsidiaries have been duly incorporated and
are validly existing as corporations in good standing under the laws of their
respective places of incorporation, with corporate power and authority to own
their properties and conduct their business as described in the Prospectus; the
Company and each of its subsidiaries are duly qualified to do business as
foreign corporations under the corporation law of, and are in good standing as
such in, each jurisdiction in which they own or lease substantial properties,
have an office, or in which substantial business is conducted and such
qualification is required except in any such case where the failure to so
qualify or be in good standing would not have a material adverse effect upon the
Company and its subsidiaries, taken as a whole; and no proceeding of which the
Company has knowledge has been instituted in any such jurisdiction, revoking,
limiting or curtailing, or seeking to revoke, limit or curtail, such power and
authority or qualification.

         (d) Except as disclosed in the Registration Statement and with respect
to director qualifying shares owned by third parties for the benefit of the
Company, the Company owns directly or indirectly 100 percent of the issued and
outstanding capital stock of each of its subsidiaries, free and clear of any
claims, liens, encumbrances or security interests, and all of such capital stock
has been duly authorized and validly issued and is fully paid and nonassessable.

         (e) The issued and outstanding shares of capital stock of the Company
as set forth in the Prospectus have been duly authorized and validly issued, are
fully paid and nonassessable, and conform to the description thereof contained
in the Prospectus. Since March 30, 1986, all offers and sales of the Company's
capital stock were at all relevant times exempt from the registration
requirements of, or registered under, the 1933 Act and were duly registered with
or the subject of an available exemption from the registration requirements of
the applicable state securities or blue sky laws.

         (f) The making and performance by the Company of this Agreement and the
Pricing Agreement have been duly authorized by all necessary corporate action
and will not violate any provision of the Company's charter or bylaws and will
not result in the breach, or be in contravention, of any provision of any
agreement, franchise, license, indenture, mortgage, deed of trust, or other
instrument to which the Company or any subsidiary is a party or by which the
Company, any subsidiary or the property of any of them may be bound or affected,
or any order, rule or regulation applicable to the Company or any subsidiary of
any court or regulatory body, administrative agency or other governmental body
having jurisdiction over the Company or any subsidiary or any of their
respective properties, or any order of any court or governmental agency or
authority entered in any proceeding to which the Company or any subsidiary was
or is now a party or by which it is bound. No consent, approval, authorization
or other order of any court, regulatory body, administrative agency or other
governmental body is required for the execution and delivery of this Agreement
or the Pricing Agreement or the consummation of the transactions contemplated
herein or therein, except for compliance with the 1933 Act and blue sky laws
applicable to the public offering of the Shares by the several Underwriters and
clearance of such offering with the National Association of Securities Dealers,
Inc. ("NASD"). This Agreement has been duly executed and delivered by the
Company.
<PAGE>

         (g) The accountants who have expressed their opinions with respect to
certain of the financial statements included or incorporated by reference in the
Registration Statement are independent accountants within the meaning of the
1933 Act.

         (h) The consolidated financial statements of the Company included or
incorporated by reference in the Registration Statement present fairly the
consolidated financial position of the Company as of the respective dates of
such financial statements, and the consolidated results of operations and cash
flows of the Company for the respective periods covered thereby, all in
conformity with generally accepted accounting principles consistently applied
throughout the periods involved, except as disclosed in the Prospectus. The
financial information set forth in the Prospectus under "Selected Consolidated
Financial Data" presents fairly on the basis stated in the Prospectus, the
information set forth therein.

         (i) Neither the Company nor any subsidiary is in violation of its
charter or in default under any consent decree, or in default with respect to
any provision of any lease, loan agreement, franchise, license, permit or other
contract obligation to which it is a party, in each case, except for defaults
which singly or in the aggregate are not material to the Company and its
subsidiaries taken as a whole; and there does not exist any state of facts which
constitutes an event of default in such documents or which, with notice or lapse
of time or both, would constitute such an event of default, in each case, except
for defaults which neither singly nor in the aggregate are material to the
Company and its subsidiaries taken as a whole.

         (j) There are no material legal or governmental proceedings pending, or
to the Company's knowledge, threatened to which the Company or any subsidiary is
or may be a party or of which material property owned or leased by the Company
or any subsidiary is or may be the subject, or related to environmental or
employment discrimination matters which are not disclosed in the Prospectus, or
which question the validity of this Agreement or the Pricing Agreement or any
action taken or to be taken pursuant hereto or thereto.

         (k) No preemptive rights of, or rights of first refusal in favor of,
stockholders exist with respect to any of the Shares or the issue and sale
thereof pursuant to applicable law, the charter or by-laws of the Company, or
otherwise, which have not been waived or otherwise satisfied. No person or
entity, other than the Selling Stockholders with respect to the Shares to be
sold by them hereunder, holds a right to require or participate in the
registration under the 1933 Act of shares of Common Stock of the Company, which
right has not been waived by the holder thereof or expired by reason of lapse of
time following notification of the Company's intent to file the Registration
Statement, as of the date hereof with respect to the registration of shares
pursuant to the Registration Statement; and except as described in the
Prospectus, no person holds a right to require registration under the 1933 Act
of shares of Common Stock of the Company at any other time. No person or entity
has a contractual preemptive right or right of participation or first refusal
with respect to the sale of the Shares by, to the best of the Company's
knowledge, the Selling Stockholders.
<PAGE>

         (l) The Company and each of its subsidiaries have good and valid title
to all the properties and assets reflected as owned in the financial statements
hereinabove described (or elsewhere in the Prospectus), subject to no lien,
mortgage, pledge, charge or encumbrance of any kind except those, if any,
reflected in such financial statements (or elsewhere in the Prospectus) or which
are not material to the Company and its subsidiaries taken as a whole. The
Company and each of its subsidiaries hold their respective leased properties
which are material to the Company and its subsidiaries taken as a whole under
valid and binding leases.

         (m) The Company has not taken and will not take, directly or
indirectly, any action designed to constitute 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 Shares.

         (n) Subsequent to the respective dates as of which information is given
in the Registration Statement and Prospectus, and except as contemplated by the
Prospectus, the Company and its subsidiaries, taken as a whole, have not
incurred any material liabilities or obligations, direct or contingent, nor
entered into any material transactions not in the ordinary course of business
and there has not been any material adverse change in their condition (financial
or otherwise) or results of operations nor any material change in their capital
stock, short-term debt or long-term debt.

         (o) The Company agrees not to offer, sell, contract to sell, issue,
grant, distribute or otherwise dispose of, directly or indirectly, any Common
Stock, or any options, rights or warrants with respect to shares of Common
Stock, or securities convertible into Common Stock (except Common Stock issued
pursuant to the existing employee stock purchase plan, currently outstanding
options, warrants or convertible securities or options granted to employees
pursuant to the Company's stock option plans described in the Prospectus) for a
period of 180 days after this Agreement becomes effective without the prior
written consent of the Representatives. The Company has obtained similar
agreements for a period of 180 days from each of its officers and directors and
the Selling Stockholders.

         (p) There is no material document of a character required to be
described in the Registration Statement or the Prospectus or to be filed as an
exhibit to the Registration Statement which is not described or filed as
required.

         (q) The Company together with its subsidiaries owns, or possesses
adequate licenses or other rights to use, all patents, patent rights,
inventions, trade secrets, know-how, proprietary techniques, including processes
and substances, trademarks, service marks, trade names and copyrights
("Intellectual Property") necessary for the conduct of its business as currently
conducted or as specifically contemplated by the Prospectus, including the
Intellectual Property described or specifically contemplated by the Prospectus
as being owned or used by it. Except as disclosed in the Prospectus, to the
knowledge of the Company, none of the activities engaged in by the Company or
any of its subsidiaries infringes or conflicts with the Intellectual Property
rights of others. No officer, and to the knowledge of the Company, no employee,
is obligated under any contract, or subject to any judgment, decree or order of
any court or administrative agency that would interfere in any material respect
with the use of such person's best efforts to promote the interests of the
Company or any of its subsidiaries or which would conflict in any material
respect with the Company's or such subsidiary's business as described in the
Prospectus. To the knowledge of the Company, no prior employer of any employee
of the Company or any subsidiary has any right to or interest in any ideas,
inventions, works of authorship, improvements, and the like assigned by such
employee to the Company or any subsidiary. Each present employee of and
consultant or technical advisor to the Company, and to the knowledge of the
Company each past employee of and consultant or technical advisor to the
Company, has assigned to the Company, to the maximum extent permitted by law,
all right, title and interest in and to any inventions, technology, techniques,
software, processes and systems developed by such person while employed or
engaged by the Company, except where the failure to assign the same would not
have a material adverse affect on the business or financial condition of the
Company and its subsidiaries taken as a whole.
<PAGE>

         (r) The conduct of business of the Company and each of its subsidiaries
is in compliance in all respects with applicable federal, state, local and
foreign laws and regulations, except where the failure to be in compliance would
not have a material adverse effect upon the condition (financial or otherwise)
or results of operations of the Company and its subsidiaries taken as a whole.

         (s) The Company and its subsidiaries have filed on a timely basis all
necessary income, franchise and other tax returns (in the United States or
otherwise) and have paid all taxes shown thereon as due, except for failures to
so file or pay which would not materially and adversely affect the Company and
its subsidiaries taken as a whole, and the Company has no knowledge of any tax
deficiency that has been or might be asserted against the Company or any
subsidiary which would materially and adversely affect the business or financial
condition of the Company and its subsidiaries taken as a whole; and all tax
liabilities are adequately provided for on the books of the Company.

         (t) The Company's Common Stock is registered pursuant to Section 12(g)
of the Exchange Act and is listed on the National Market of the National
Association of Securities Dealers, Inc. Automated Quotations System
("NASDAQ/NM"), and the Company has taken no action designed to, or likely to
have the effect of, terminating the registration of the Common Stock under the
Exchange Act or delisting the Common Stock from the NASDAQ/NM, nor has the
Company received any notification that the Commission or the NASD is
contemplating terminating such registration or listing.

         (u) The Company confirms as of the date hereof that it is in compliance
with all provisions of Section 1 of Laws of Florida, Chapter 92-198, An Act
Relating to Disclosure of Doing Business with Cuba, and the Company further
agrees that if it commences engaging in business with the government of Cuba or
with any person or affiliate located in Cuba after the date the Registration
Statement becomes or has become effective with the Commission or with the
Florida Department of Banking and Finance (the "Department"), whichever date is
later, or if the information reported in the Prospectus, if any, concerning the
Company's business with Cuba or with any person or affiliate located in Cuba
changes in any material way, the Company will provide the Department notice of
such business or change, as appropriate, in a form acceptable to the Department.
<PAGE>

         (v) The  conditions  for use of Form S-3,  as set forth in the  General
Instructions thereto, have been satisfied.

         SECTION 3.  Representations,  Warranties  and  Covenants of the Selling
Stockholders.

         (a) Each Selling Stockholder  severally represents and warrants to, and
agrees with, the Company and the Underwriters that:

                  (i) Such Selling Stockholder has, and on the First Closing
         Date or the Second Closing Date hereinafter defined, as the case may
         be, will have, good and valid title to the Shares proposed to be sold
         by such Selling Stockholder hereunder on such date and full right and
         power to enter into this Agreement, the Pricing Agreement, the Power of
         Attorney hereinafter defined and the Custody Agreement hereinafter
         defined and to sell, assign, transfer and deliver such Shares
         hereunder, free and clear of all voting trust arrangements, liens,
         encumbrances, equities, claims and community property rights; and upon
         delivery of and payment for such Shares hereunder, the Underwriters
         will acquire good and valid title thereto, free and clear of all voting
         trust arrangements, liens, encumbrances, equities, claims and community
         property rights.

                  (ii) Such Selling Stockholder has not taken and will not take,
         directly or indirectly, any action designed to or which might be
         reasonably 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 Shares.

                  (iii) Such Selling Stockholder has executed and delivered a
         Power of Attorney ("Power of Attorney") among the Selling Stockholder
         and Peter J. Cohen, Kevin J. O'Brien, Richard A. Daniels and Jayandra
         Patel (the "Agents"), naming the Agents as such Selling Stockholder's
         attorneys-in-fact (and, by the execution by any Agent of this
         Agreement, such Agents hereby represents and warrants that he has been
         duly appointed as attorney-in-fact by the Selling Stockholders pursuant
         to the Power of Attorney) for the purpose of entering into and carrying
         out this Agreement and the Pricing Agreement, and the Power of Attorney
         has been duly executed by such Selling Stockholder and a copy thereof
         has been delivered to you.
<PAGE>

                  (iv) Such Selling Stockholder further represents, warrants and
         agrees that such Selling Stockholder has deposited in custody, under a
         Custody Agreement ("Custody Agreement") with Ruskin, Moscou, Evans &
         Faltischek, P.C. as custodian ("Custodian"), certificates in negotiable
         form, or convertible into or exchangeable, for the Shares to be sold
         hereunder by such Selling Stockholder, for the purpose of further
         delivery pursuant to this Agreement. Such Selling Stockholder agrees
         that the Shares to be sold by such Selling Stockholder on deposit with
         the Custodian are subject to the interests of the Company, the
         Underwriters and the other Selling Stockholder, that the arrangements
         made for such custody, and the appointment of the Agent pursuant to the
         Power of Attorney, are to that extent irrevocable and coupled with an
         interest, and that the obligations of such Selling Stockholder
         hereunder and under the Power of Attorney and the Custody Agreement
         shall not be terminated (except as provided in this Agreement, the
         Power of Attorney or the Custody Agreement) by any act of such Selling
         Stockholder, by operation of law, whether, in the case of an individual
         Selling Stockholder, by the death or incapacity of such Selling
         Stockholder or, in the case of a trust or estate, by the death of the
         trustee or trustees or the executor or executors or the termination of
         such trust or estate, or, in the case of a partnership or corporation,
         by the dissolution, winding-up or other event affecting the legal life
         of such entity, or by the occurrence of any other event. If any
         individual Selling Stockholder, trustee or executor should die or
         become incapacitated, or any such trust, estate, partnership or
         corporation should be terminated, or if any other event should occur
         before the delivery of the Shares hereunder, the documents evidencing
         Shares then on deposit with the Custodian shall be delivered by the
         Custodian in accordance with the terms and conditions of this Agreement
         as if such death, incapacity, termination or other event had not
         occurred, regardless of whether or not the Custodian shall have
         received notice thereof. Each Agent has been authorized (under the
         terms of the Power of Attorney) by such Selling Stockholder to execute
         and deliver this Agreement and the Pricing Agreement and the Custodian
         has been authorized to receive and acknowledge receipt of the proceeds
         of sale of the Shares to be sold by such Selling Stockholder against
         delivery thereof and otherwise act on behalf of such Selling
         Stockholder. The Custody Agreement has been duly executed by such
         Selling Stockholder and a copy thereof has been delivered to you.

                  (v) Each preliminary prospectus, insofar as it contains
         information related to such Selling Stockholder and, to the knowledge
         of such Selling Stockholder in all other respects, as of its date, has
         conformed in all material respects with the requirements of the 1933
         Act and, as of its date, has not included any untrue statement of a
         material fact or omitted to state a material fact necessary to make the
         statements therein not misleading; and at the time the Registration
         Statement becomes effective, and at all times subsequent thereto, up to
         the First Closing Date or the Second Closing Date hereinafter defined,
         as the case may be, (1) the Registration Statement and the Prospectus
         and any amendments or supplements thereto insofar as they contain
         information related to such Selling Stockholder, and to the knowledge
         of such Selling Stockholder in all other respects, contained or will
         contain all statements that are required to be stated therein in
         accordance with the 1933 Act and in all material respects conformed or
         will in all material respects conform to the requirements of the 1933
         Act, and (2) neither the Registration Statement nor the Prospectus, nor
         any amendment or supplement thereto, as it relates to such Selling
         Stockholder, and, to the knowledge of such Selling Stockholder in all
         other respects, included or will include any untrue statement of a
         material fact or omitted or will omit to state any material fact
         required to be stated therein or necessary to make the statements
         therein not misleading; provided that neither clause (1) nor (2) shall
         have any effect if information has been given by such Selling
         Stockholder to the Company and the Representatives in writing for
         purpose of inclusion therein which would eliminate or remedy any such
         untrue statement or omission.
<PAGE>

                  (vi) Such Selling Stockholder agrees with the Company and the
         Underwriters not to offer, sell, contract to sell, transfer or
         otherwise dispose of, directly or indirectly, any Common Stock or any
         options, rights or warrants with respect to shares of Common Stock, or
         securities convertible into Common Stock for a period of 180 days after
         this Agreement becomes effective without the prior written consent of
         the Representative (other than bona fide gifts to persons who have
         agreed to be bound by the foregoing restriction).

                  (vii) Such Selling Stockholder has not distributed and will
         not distribute any prospectus or other offering material in connection
         with the offering and sale of the Shares.

         (b) Each of the Selling Stockholders severally represents and warrants
to, and agrees with, the Underwriters that, the representations and warranties
of the Company set forth in Section 2 of this Agreement are true and correct.

         (c) In order to document the Underwriters' compliance with the
reporting and withholding provisions of the Internal Revenue Code of 1986, as
amended, with respect to the transactions herein contemplated, each of the
Selling Stockholders agrees to deliver to you prior to or on the First Closing
Date, as hereinafter defined, a properly completed and executed United States
Treasury Department Form W-8 or W-9 (or other applicable form of statement
specified by Treasury Department regulations in lieu thereof).

         SECTION 4. Representations and Warranties of the Underwriters. The
Representatives, on behalf of the several Underwriters, represent and warrant to
the Company and the Selling Stockholders that the information set forth (a) on
the cover page of the Prospectus with respect to price, underwriting discount
and terms of the offering and (b) under "Underwriting" in the Prospectus was
furnished to the Company by and on behalf of the Underwriters for use in
connection with the preparation of the Registration Statement and is correct and
complete in all material respects.

         SECTION 5. Purchase, Sale and Delivery of Shares. On the basis of the
representations, warranties and agreements herein contained, but subject to the
terms and conditions herein set forth, the Selling Stockholders listed on
Schedule B hereto, severally and not jointly, agree to sell to the Underwriters
named in Schedule A hereto, and the Underwriters agree, severally and not
jointly, to purchase from the Selling Stockholders the respective number of Firm
Shares set forth opposite the names of the Selling Stockholders in Schedule B
hereto at the price per share set forth in the Pricing Agreement. The obligation
of each Underwriter to each Selling Stockholder shall be to purchase from such
Selling Stockholder the number of full shares which (as nearly as practicable,
as determined by you) bears to that number of Firm Shares set forth opposite the
name of such Selling Stockholder in Schedule B hereto, the same proportion as
the number of Shares set forth opposite the name of such Underwriter in Schedule
A hereto bears to the total number of Firm Shares to be purchased by all
Underwriters under this Agreement. The initial public offering price and the
purchase price shall be set forth in the Pricing Agreement.
<PAGE>

         At 9:00 a.m., Chicago Time, on the third full business day after the
date of this Agreement, the Custodian will deliver to you at the offices of
counsel for the Underwriters or through the facilities of The Depository Trust
Company for the accounts of the several Underwriters, certificates representing
the Firm Shares to be sold by them, respectively, against payment of the
purchase price therefor by certified or bank cashier's checks in Chicago
Clearing House funds (next-day funds) payable, as appropriate, to the order of
the Selling Stockholders. Such time of delivery and payment is herein referred
to as the "First Closing Date." The certificates for the Firm Shares so to be
delivered will be in such denominations and registered in such names as you
request by notice to the Company and the Custodian prior to 10:00 a.m., Chicago
Time, on the second full business day preceding the First Closing Date, and will
be made available at the Selling Stockholders' expense for checking and
packaging by the Representatives at 10:00 a.m., Chicago Time, on the first full
business day preceding the First Closing Date. Payment for the Firm Shares so to
be delivered shall be made at the time and in the manner described above at the
offices of counsel for the Underwriters.

         In addition, on the basis of the representations, warranties and
agreements herein contained, but subject to the terms and conditions herein set
forth, the Selling Stockholders listed on Schedule B, severally and not jointly,
hereby grant an option to the several Underwriters to purchase, severally and
not jointly, up to an aggregate of 165,000 Option Shares, at the same purchase
price per share to be paid for the Firm Shares, for use solely in covering any
overallotments made by the Underwriters in the sale and distributions of the
Firm Shares. The option granted hereunder may be exercised at any time (but not
more than once) within 30 days after the date of the initial public offering
upon notice by you to the Company and the Agent setting forth the aggregate
number of Option Shares as to which the Underwriters are exercising the option,
the names and denominations in which the certificates for such shares are to be
registered and the time and place at which such certificates will be delivered.
Such time of delivery (which may not be earlier than the First Closing Date),
being herein referred to as the "Second Closing Date," shall be determined by
you, but if at any time other than the First Closing Date, shall not be earlier
than three nor later than 10 full business days after delivery of such notice of
exercise. The number of Option Shares to be purchased from each such Selling
Stockholder is set forth in Schedule B hereto. If less than all of the Option
Shares are to be purchased, the number of Option Shares which are to be
purchased from each Selling Stockholder shall be the product of (A) the
aggregate number of Option Shares to be purchased by the Underwriters multiplied
by (B) the fraction, the numerator of which is the number of Option Shares such
Selling Stockholder has agreed to sell and the denominator of which is the
maximum number of Option Shares. The number of Option Shares to be purchased by
each Underwriter shall be determined by multiplying the number of Option Shares
to be sold by the Selling Stockholders pursuant to such notice of exercise by a
fraction, the numerator of which is the number of Firm Shares to be purchased by
such Underwriter as set forth opposite its name in Schedule A and the
denominator of which is the total number of Firm Shares (subject to such
adjustments to eliminate any fractional share purchases as you in your absolute
discretion may make). Certificates for the Option Shares will be made available
at the Selling Stockholders' expense for checking and packaging at 10:00 a.m.,
Chicago Time, on the first full business day preceding the Second Closing Date.
The manner of payment for and delivery of the Option Shares shall be the same as
for the Firm Shares as specified in the preceding paragraph.
<PAGE>

         You have advised the Selling Stockholders that each Underwriter has
authorized you to accept delivery of its Shares, to make payment and to receipt
therefor. You, individually and not as the Representatives of the Underwriters,
may make payment for any Shares to be purchased by any Underwriter whose funds
shall not have been received by you by the First Closing Date or the Second
Closing Date, as the case may be, for the account of such Underwriter, but any
such payment shall not relieve such Underwriter from any obligation hereunder.

         SECTION 6. Covenants of the Company.  The Company  covenants and agrees
that:

         (a) The Company will advise you and the Selling Stockholders promptly
of the issuance by the Commission of any stop order suspending the effectiveness
of the Registration Statement or of the institution of any proceedings for that
purpose, or of any notification of the suspension of qualification of the Shares
for sale in any jurisdiction or the initiation or threatening of any proceedings
for that purpose, and will also advise you and the Selling Stockholders promptly
of any request of the Commission for amendment or supplement of the Registration
Statement, of any preliminary prospectus or of the Prospectus, or for additional
information, and will not file any amendment or supplement to the Registration
Statement, to any preliminary prospectus or to the Prospectus of which you and
the Selling Stockholders have not been furnished with a copy prior to such
filing or to which you reasonably object.

         (b) If at any time when a prospectus relating to the Shares is required
to be delivered under the 1933 Act any event occurs as a result of which the
Prospectus, including any amendments or supplements, would include an untrue
statement of a material fact, or omit to state any material fact required to be
stated therein or necessary to make the statements therein, in the light of the
circumstances under which they were made, not misleading, or if it is necessary
at any time to amend the Prospectus, including any amendments or supplements
thereto and including any revised prospectus which the Company proposes for use
by the Underwriters in connection with the offering of the Shares which differs
from the prospectus on file with the Commission at the time of effectiveness of
the Registration Statement, whether or not such revised prospectus is required
to be filed pursuant to Rule 424(b) to comply with the 1933 Act, the Company
promptly will advise you thereof and will promptly prepare and file with the
Commission an amendment or supplement which will correct such statement or
omission or an amendment which will effect such compliance; and, in case any
Underwriter is required to deliver a prospectus nine months or more after the
effective date of the Registration Statement, the Company upon request, but at
the expense of such Underwriter, will prepare promptly such prospectus or
prospectuses as may be necessary to permit compliance with the requirements of
Section 10(a)(3) of the 1933 Act.
<PAGE>

         (c) Neither the Company nor any of its subsidiaries will, prior to the
earlier of the Second Closing Date or termination or expiration of the related
option, incur any liability or obligation, direct or contingent, or enter into
any material transaction, other than in the ordinary course of business, except
as contemplated by the Prospectus.

         (d) Neither the Company nor any of its subsidiaries will acquire any
capital stock of the Company prior to the earlier of the Second Closing Date or
termination or expiration of the related option nor will the Company declare or
pay any dividend or make any other distribution upon the Common Stock payable to
stockholders of record on a date prior to the earlier of the Second Closing Date
or termination or expiration of the related option, except in either case as
contemplated by or discussed in the Prospectus.

         (e) Not later than __________, 1997 the Company will make generally
available to its security holders an earnings statement (which need not be
audited) covering a period of at least 12 months beginning after the effective
date of the Registration Statement, which will satisfy the provisions of the
last paragraph of Section 11(a) of the 1933 Act.

         (f) During such period as a prospectus is required by law to be
delivered in connection with offers and sales of the Shares by an Underwriter or
dealer, the Company will furnish to you at its expense, subject to the
provisions of subsection (b) hereof, copies of the Registration Statement, the
Prospectus, each preliminary prospectus and all amendments and supplements to
any such documents in each case as soon as available and in such quantities as
you may reasonably request, for the purposes contemplated by the 1933 Act. To
the extent applicable, the copies of the Registration Statement and each
amendment thereto (including all exhibits filed therewith) and the Prospectus
(as amended or supplemented) furnished to the Representative and counsel to the
Underwriters will be identical to the electronically transmitted copies thereof
filed with the Commission pursuant to EDGAR, except to the extent permitted by
Regulation S-T.

         (g) The [Company] will cooperate with the Underwriters in qualifying or
registering the Shares for sale under the blue sky laws of such jurisdictions as
you designate, and will continue such qualifications in effect so long as
reasonably required for the distribution of the Shares. The Company shall not be
required to qualify as a foreign corporation or to file a general consent to
service of process in any such jurisdiction where it is not currently qualified
or where it would be subject to taxation as a foreign corporation.

         (h) During the period of five years hereafter, the Company will furnish
you, on behalf of yourself and each of the other Underwriters, with a sufficient
number of copies (i) as soon as practicable after the filing thereof, of each
report filed by the Company with the Commission, any securities exchange or the
NASD; (ii) as soon as practicable after release thereof, of each material press
release in respect of the Company; (iii) as soon as available, of each report of
the Company mailed to stockholders; and (iv) any additional information of a
public nature concerning the Company or its business that you may reasonably
request. To the extent applicable, such reports or documents shall be identical
to the electronically transmitted copies thereof filed with the Commission
pursuant to EDGAR, except to the extent permitted by Regulation S-T.
<PAGE>

         (i) If, at the time of effectiveness of the Registration Statement, any
information shall have been omitted therefrom in reliance upon Rule 430A, then
immediately following the execution and delivery of the Pricing Agreement, the
Company will prepare, and file or transmit for filing with the Commission in
accordance with such Rule 430A and Rule 424(b), copies of an amended prospectus,
or, if required by such Rule 430A, a post-effective amendment to the
Registration Statement (including an amended prospectus), containing all
information so omitted.

         (j) The Company will comply with all registration  filing and reporting
requirements of the Exchange Act and the NASDAQ/NM.

         (k) The Company is familiar with the Investment Company Act of 1940, as
amended, and the rules and regulations thereunder, and has in the past conducted
its affairs, and will for the next three years conduct its affairs, in such a
manner so as to ensure that the Company was not and will not be an "investment
company" within the meaning of the Investment Company Act of 1940, as amended,
and the rules and regulations thereunder.

         SECTION 7. Payment of Expenses. Whether or not the transactions
contemplated hereunder are consummated or this Agreement becomes effective as to
all of its provisions or is terminated, the Selling Stockholders agree to pay
(i) all costs, fees and expenses (other than legal fees and disbursements of
counsel for the Underwriters and the expenses incurred by the Underwriters)
incurred in connection with the performance of their and the Company's
obligations hereunder, including without limiting the generality of the
foregoing, all fees and expenses of legal counsel for the Company and of the
Company's independent accountants, all costs and expenses incurred in connection
with the preparation, printing, filing and distribution of the Registration
Statement, each preliminary prospectus and the Prospectus (including all
incorporated Documents, exhibits and financial statements) and all amendments
and supplements provided for herein, this Agreement, the Pricing Agreement, the
Power of Attorney and the Custody Agreement; (ii) all costs, fees and expenses
(including legal fees and disbursements of counsel for the Underwriters not to
exceed $15,000) incurred by the Underwriters in connection with qualifying or
registering all or any part of the Shares for offer and sale under blue sky
laws, including the preparation of a Blue Sky Memorandum relating to the Shares,
and clearance of such offering with the NASD; and (iii) all fees and expenses of
the Company's transfer agent, printing of the certificates for the Shares and
all transfer taxes, if any, with respect to the sale and delivery of the Shares
to the several Underwriters.

         The provisions of this Section shall not affect any agreement which the
Company and the Selling Stockholders may make for the allocation or sharing of
such expenses and costs.

         SECTION 8. Conditions of the Obligations of the Underwriters. The
obligations of the several Underwriters to purchase and pay for the Firm Shares
on the First Closing Date and the Option Shares on the Second Closing Date shall
be subject to the accuracy of the representations and warranties on the part of
the Company and the Selling Stockholders herein set forth as of the date hereof
and as of the First Closing Date or the Second Closing Date, as the case may be,
to the accuracy of the statements of officers of the Company made pursuant to
the provisions hereof, to the performance by the Company and the Selling
Stockholders of their respective obligations hereunder, and to the following
additional conditions:
<PAGE>

         (a) The Registration Statement shall have become effective either prior
to the execution of this Agreement or not later than 8:30 a.m., Chicago Time, on
the first full business day after the date of this Agreement, or such later time
as shall have been consented to by you but in no event later than 1:00 p.m.,
Chicago Time, on the third full business day following the date hereof; and
prior to the First Closing Date or the Second Closing Date, as the case may be,
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 shall be pending or, to the knowledge of the Company, the Selling
Stockholders or you, shall be contemplated by the Commission. If the Company has
elected to rely upon Rule 430A, the information concerning the public offering
price of the Shares and price-related information shall have been transmitted to
the Commission for filing pursuant to Rule 424(b) within the prescribed period
and the Company will provide evidence satisfactory to the Representatives of
such timely filing (or a post-effective amendment providing such information
shall have been filed and declared effective in accordance with the requirements
of Rules 430A and 424(b)).

         (b) The Shares shall have been qualified for sale under the blue sky
laws of such states as shall have been specified by the Representatives.

         (c) The legality and sufficiency of the authorization, issuance and
sale or transfer and sale of the Shares hereunder, the validity and form of the
certificates representing the Shares, the execution and delivery of this
Agreement, the Pricing Agreement, the Power of Attorney and the Custody
Agreement, and all corporate proceedings and other legal matters incident
thereto, and the form of the Registration Statement and the Prospectus (except
financial statements) shall have been approved by counsel for the Underwriters
exercising reasonable judgment.

         (d) You shall not have advised the Company that the Registration
Statement or the Prospectus or any amendment or supplement thereto, contains an
untrue statement of fact, which, in the opinion of counsel for the Underwriters,
is material or omits to state a fact which, in the opinion of such counsel, is
material and is required to be stated therein or is necessary to make the
statements therein not misleading.

         (e) Subsequent to the execution and delivery of this Agreement, there
shall not have occurred any change, or any development involving a prospective
change, in or affecting particularly the business or properties of the Company
or its subsidiaries, whether or not arising in the ordinary course of business,
which, in the reasonable judgment of the Representatives, makes it impractical
or inadvisable to proceed with the public offering or purchase of the Shares as
contemplated hereby.
<PAGE>

         (f) There shall have been furnished to you, as Representatives of the
Underwriters, on the First Closing Date or the Second Closing Date, as the case
may be, except as otherwise expressly provided below:

                  (i) An opinion of Ruskin, Moscou, Evans & Faltischek, P.C.,
         counsel for the Company and the Selling Stockholders, addressed to the
         Underwriters and dated the First Closing Date or the Second Closing
         Date, as the case may be, to the effect that:

                            (1) the  Company has been duly  incorporated  and is
validly  existing as a corporation  in good standing under the laws of the State
of Delaware with corporate power and authority to own its properties and conduct
its  business  as  described  in the  Prospectus;  and the Company has been duly
qualified to do business as a foreign  corporation under the corporation law of,
and is in good  standing as such in, every  jurisdiction  where the ownership or
leasing of property,  or the conduct of its business requires such qualification
except where the failure so to qualify would not have a material  adverse effect
upon the  condition  (financial  or  otherwise)  or results of operations of the
Company and its subsidiaries taken as a whole;

                            (2) an opinion to the same general  effect as clause
(1) of this  subparagraph (i) in respect of each direct and indirect  subsidiary
of the Company;

                            (3) all of the issued and outstanding  capital stock
of each subsidiary of the Company has been duly  authorized,  validly issued and
is fully paid and  nonassessable,  and, except as disclosed in the  Registration
Statement and with respect to director  qualifying shares owned by third parties
for the benefit of the Company,  the Company  owns  directly or  indirectly  100
percent  of  the  outstanding  capital  stock  of  each  subsidiary,  and to the
knowledge  of such  counsel,  such stock is owned free and clear of any  claims,
liens, encumbrances or security interests; and to the knowledge of such counsel,
except for the subsidiaries  listed in the Registration  Statement,  the Company
does not own or control, directly or indirectly, any corporation, association or
other entity;

                            (4) the authorized capital stock of the Company,  of
which there is outstanding to the knowledge of such counsel the amount set forth
in the Registration  Statement and Prospectus (except for subsequent  issuances,
if  any,  pursuant  to  stock  options  or  other  rights  referred  to  in  the
Prospectus),  conforms  as to legal  matters  in all  material  respects  to the
description thereof in the Registration Statement and Prospectus;

                            (5) the issued and outstanding  capital stock of the
Company has been duly  authorized  and validly issued and is to the knowledge of
such counsel fully paid and nonassessable;

                            (6) the  certificates for the Shares to be delivered
hereunder  are in due and  proper  form,  and  when  duly  countersigned  by the
Company's transfer agent and delivered to you or upon your order against payment
of the agreed  consideration  therefor in accordance with the provisions of this
Agreement and the Pricing Agreement, the Shares represented thereby will be duly
authorized and validly issued, fully paid and nonassessable;
<PAGE>

                            (7) no  preemptive  rights  of,  or  rights of first
refusal in favor of, stockholders exist with respect to any of the Shares or the
issue and sale thereof  pursuant to applicable  law or the charter or by-laws of
the Company and, to the  knowledge  of such  counsel,  there are no  contractual
preemptive rights or rights of first refusal or other similar rights which exist
with respect to any of the Shares or the issue and sale thereof;

                            (8) to such counsel's knowledge, except as set forth
in the Registration Statement and the Prospectus, no holders of shares of Common
Stock or other securities of the Company have  registration  rights with respect
to  securities  of the  Company  and,  except as set  forth in the  Registration
Statement  and  Prospectus,  all holders of  securities  of the  Company  having
registration  rights with respect to shares of Common Stock or other  securities
have, with respect to the offering  contemplated  hereby,  waived such rights or
such rights have  otherwise been waived or such rights have expired by reason of
lapse  of time  following  notification  of the  Company's  intent  to file  the
Registration Statement;

                            (9) the Registration  Statement has become effective
under the 1933  Act,  and,  to the  knowledge  of such  counsel,  no stop  order
suspending the  effectiveness of the Registration  Statement has been issued and
no  proceedings  for  that  purpose  have  been  instituted  or are  pending  or
contemplated under the 1933 Act, and the Registration  Statement  (including the
information  deemed  to be part of the  Registration  Statement  at the  time of
effectiveness pursuant to Rule 430A(b), if applicable),  the Prospectus and each
amendment or supplement  thereto (except for the financial  statements and other
statistical  or financial  data  included  therein as to which such counsel need
express  no  opinion)  comply  as to  form in all  material  respects  with  the
requirements  of the 1933 Act;  nothing  has come to  counsel's  attention  that
causes them to believe that either the  Registration  Statement  (including  the
information  deemed  to be part of the  Registration  Statement  at the  time of
effectiveness pursuant to Rule 430A(b), if applicable) or the Prospectus, or the
Registration  Statement or the Prospectus as amended or supplemented  (except as
aforesaid),  as of their  respective  effective  or issue dates,  contained  any
untrue statement of a material fact or omitted to state a material fact required
to be stated therein or necessary to make the statements  therein not misleading
or that the  Prospectus as amended or  supplemented,  if  applicable,  as of the
First Closing Date or the Second Closing Date, as the case may be, contained any
untrue  statement  of a  material  fact or omitted  to state any  material  fact
necessary  to make  the  statements  therein  not  misleading  in  light  of the
circumstances  under which they were made; and such counsel does not know of any
legal or governmental proceedings pending or threatened required to be described
in the Prospectus  which are not described as required,  nor of any contracts or
documents of a character required to be described in the Registration  Statement
or Prospectus or to be filed as exhibits to the Registration Statement which are
not described or filed, as required;
<PAGE>

                            (10) the statements in the Registration Statement
and the Prospectus summarizing statutes, rules and regulations (excluding
accounting and auditing rules) are accurate and fairly and correctly present the
information required to be presented by the 1933 Act or the rules and
regulations thereunder, in all material respects; and such counsel does not know
of any statutes, rules and regulations required to be described in the
Registration Statement or the Prospectus that are not described or referred to
therein as required;

                            (11) the statements under the caption "Description
of Capital Stock" in the Prospectus, insofar as such statements constitute a
summary of documents referred to therein or matters of law, are accurate
summaries and fairly and correctly present, in all material respects, the
information called for with respect to such documents and matters;

                            (12) this Agreement and the Pricing Agreement and
the performance of the Company's obligations hereunder have been duly authorized
by all necessary corporate action and this Agreement and the Pricing Agreement
have been duly executed and delivered by and on behalf of the Company, and are
legal, valid and binding agreements of the Company, except as enforceability of
the same may be limited by bankruptcy, insolvency, reorganization, moratorium or
other similar laws affecting creditors' rights and by the exercise of judicial
discretion in accordance with general principles applicable to equitable and
similar remedies and except as to those provisions relating to indemnities for
liabilities arising under the 1933 Act as to which no opinion need be expressed;
and no approval, authorization or consent of any public board, agency or
instrumentality of the United States or of any state or other jurisdiction is
necessary in connection with the issue or sale of the Shares by the Company
pursuant to this Agreement (other than under the 1933 Act, applicable blue sky
laws and the rules of the NASD) or the consummation by the Company of any other
transactions contemplated hereby;

                            (13) the execution and performance of this
Agreement, to such counsel's knowledge, will not contravene any of the
provisions of, or result in a default under, any agreement, franchise, license,
indenture, mortgage, deed of trust, or other instrument, of the Company or any
of its subsidiaries or by which the property of any of them is bound and which
contravention or default would be material to the Company and its subsidiaries
taken as a whole; or violate any of the provisions of the charter or bylaws of
the Company or any of its subsidiaries or, so far as is known to such counsel,
violate any statute, order, rule or regulation of any regulatory or governmental
body having jurisdiction over the Company or any of its subsidiaries;

                            (14) to such counsel's knowledge, all offers and
sales of the Company's capital stock since November 23, 1995 were at all
relevant times exempt from the registration requirements of the 1933 Act and
were duly registered or the subject of an available exemption from the
registration requirements of the applicable state securities or blue sky laws;

                            (15) all documents incorporated by reference in the
Prospectus, when they were filed with the Commission, compiled as to form in all
material respects with the requirements of the Exchange Act; and such counsel
have no reason to believe that any of such documents, when they were so filed,
contained an untrue statement of a material fact or omitted to state a material
fact necessary in order to make the statements therein, in the light of the
circumstances under which they were made when such documents were so filed, not
misleading; such counsel need express no opinion as to the financial statements
or other financial or statistical date contained in any such document.

<PAGE>

                            (16) with respect to each Selling Stockholder, this
Agreement and the Pricing Agreement have been duly authorized, executed and
delivered by or on behalf of each such Selling Stockholder; the Agent and the
Custodian for each such Selling Stockholder has been duly and validly authorized
to carry out all transactions contemplated herein on behalf of each such Selling
Stockholder; and the performance of this Agreement and the Pricing Agreement and
the consummation of the transactions herein contemplated by such Selling
Stockholders, to such counsel's knowledge, will not result in a breach or
violation of any of the terms and provisions of, or constitute a default under,
any statute, any indenture, mortgage, deed of trust, note agreement or other
agreement or instrument to which any of such Selling Stockholders is a party or
by which any are bound or to which any of the property of such Selling
Stockholders is subject, or any order, rule or regulation known to such counsel
of any court or governmental agency or body having jurisdiction over any of such
Selling Stockholders or any of their properties; and no consent, approval,
authorization or order of any court or governmental agency or body is required
for the consummation of the transactions contemplated by this Agreement and the
Pricing Agreement in connection with the sale of Shares to be sold by such
Selling Stockholders hereunder, except such as have been obtained under the 1933
Act and such as may be required under applicable blue sky laws in connection
with the purchase and distribution of such Shares by the Underwriters and the
clearance of such offering with the NASD;

                            (17) each Selling Stockholder has full right and
power to enter into this Agreement, the Pricing Agreement, the Power of Attorney
and the Custody Agreement and to sell, transfer and deliver the Shares to be
sold on the First Closing Date or the Second Closing Date, as the case may be,
by such Selling Stockholder hereunder; each Selling Stockholder is the record
owner of such Shares so sold and to such counsel's knowledge such shares are
owned free and clear of all voting trust arrangements, liens, encumbrances,
equities, claims and community property rights whatsoever;

                            (18) title to such Shares has been transferred to
the Underwriters (who counsel may assume to be bona fide purchasers) who have
purchased such Shares hereunder; and

                            (19) this Agreement, the Pricing Agreement, the
Power of Attorney and the Custody Agreement are legal, valid and binding
agreements of each Selling Stockholder except as enforceability of the same may
be limited by bankruptcy, insolvency, reorganization, moratorium or other
similar laws affecting creditors' rights and by the exercise of judicial
discretion in accordance with general principles applicable to equitable and
similar remedies and except with respect to those provisions relating to
indemnities for liabilities arising under the 1933 Act, as to which no opinion
need be expressed.

         In rendering such opinion, such counsel may state that they are relying
upon the certificate of American Stock Transfer and Trust Company, the transfer
agent for the Common Stock, as to the number of shares of Common Stock at any
time or times outstanding, and that insofar as their opinion under clause (9) of
this Section 8(f) above relates to the accuracy and completeness of the
Prospectus and Registration Statement, it is based upon participation in
conferences with representatives of the Underwriters, and with officers and
other representatives of the Company and its independent public accountants, at
which the contents of the Registration Statement and the Prospectus were
discussed, without independent verification by such counsel of the accuracy or
completeness of such information. Such counsel may also rely upon the opinions
of other competent counsel and, as to factual matters, on certificates of the
Selling Stockholders and of officers of the Company and of state officials, in
which case their opinion is to state that they are so doing and copies of said
opinions or certificates are to be attached to the opinion unless said opinions
or certificates (or, in the case of certificates, the information therein) have
been furnished to the Representatives in other form.
<PAGE>

                  (ii) Such opinion or opinions of Testa, Hurwitz & Thibeault,
         LLP, counsel for the Underwriters, dated the First Closing Date or the
         Second Closing Date, as the case may be, with respect to the
         incorporation of the Company, the validity of the Shares to be sold by
         the Company, the Registration Statement and the Prospectus and other
         related matters as you may reasonably require, and the Company shall
         have furnished to such counsel such documents and shall have exhibited
         to them such papers and records as they request for the purpose of
         enabling them to pass upon such matters.

                  (iii) A certificate of the chief executive officer and the
         principal financial officer of the Company, dated the First Closing
         Date or the Second Closing Date, as the case may be, to the effect
         that:

         (1) the representations and warranties of the Company set forth in
         Section 2 of this Agreement are true and correct as of the date of this
         Agreement and as of the First Closing Date or the Second Closing Date,
         as the case may be, 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 such Closing Date; and

                  (2) the Commission has not issued an order preventing or
         suspending the use of the Prospectus or any preliminary prospectus
         filed as a part of the Registration Statement or any amendment thereto;
         no stop order suspending the effectiveness of the Registration
         Statement has been issued; and to the best knowledge of the respective
         signers, no proceedings for that purpose have been instituted or are
         pending or contemplated under the 1933 Act.

                  The delivery of the certificate provided for in this
         subparagraph shall be and constitute a representation and warranty of
         the Company as to the facts required in the immediately foregoing
         clauses (1) and (2) of this subparagraph to be set forth in said
         certificate.

                  (iv) A certificate of each Selling Stockholder dated the First
         Closing Date or the Second Closing Date, as the case may be, to the
         effect that the representations and warranties of such Selling
         Stockholder set forth in Section 3 of this Agreement are true and
         correct as of such date and the Selling Stockholder has complied with
         all the agreements and satisfied all the conditions on the part of such
         Selling Stockholder to be performed or satisfied at or prior to such
         date.
<PAGE>

                  (v) At the time the Pricing Agreement is executed and also on
         the First Closing Date or the Second Closing Date, as the case may be,
         there shall be delivered to you a letter addressed to you, as
         Representatives of the Underwriters, from Deloitte & Touche, LLP
         independent accountants, the first one to be dated the date of the
         Pricing Agreement, the second one to be dated the First Closing Date
         and the third one (in the event of a second closing) to be dated the
         Second Closing Date, to the effect set forth in Schedule C. There shall
         not have been any change or decrease specified in the letters referred
         to in this subparagraph which makes it impractical or inadvisable in
         the judgment of the Representatives to proceed with the public offering
         of purchase of the Shares as contemplated hereby.

                  (vi)     Such further certificates and documents as you may
         reasonably request.

         All such opinions, certificates, letters and documents shall be in
compliance with the provisions hereof only if they are satisfactory to you and
to Testa, Hurwitz & Thibeault, LLP, counsel for the Underwriters, which approval
shall not be unreasonably withheld. The Company shall furnish you with such
manually signed or conformed copies of such opinions, certificates, letters and
documents as you request.

         If any condition to the Underwriters' obligations hereunder to be
satisfied prior to or at the First Closing Date is not so satisfied, this
Agreement at your election will terminate upon notification to the Company and
the Selling Stockholders without liability on the part of any Underwriter or the
Company or any Selling Stockholder, except for the expenses to be paid or
reimbursed by the Selling Stockholders pursuant to Sections 7 and 9 hereof and
except to the extent provided in Section 11 hereof.

         SECTION 9. Reimbursement of Underwriters' Expenses. In addition to
expenses required to be borne by the Selling Stockholders under Section 7
hereof, if the sale to the Underwriters of the Shares on the First Closing Date
is not consummated because any condition of the Underwriters' obligations
hereunder is not satisfied or because of any refusal, inability or failure on
the part of the Company or the Selling Stockholders to perform any agreement
herein or to comply with any provision hereof, unless such failure to satisfy
such condition or to comply with any provision hereof is due to the default or
omission of any Underwriter, the Selling Stockholders agree to reimburse you and
the other Underwriters upon demand for all out-of-pocket expenses (including
reasonable fees and disbursements of counsel) that shall have been reasonably
incurred by you and them in connection with the proposed purchase and sale of
the Shares. Any such termination shall be without liability of any party to any
other party except that the provisions of this Section 9, Section 7 and Section
11 shall at all times be effective and shall apply.
<PAGE>

         SECTION 10. Effectiveness of Registration Statement. You, the Company
and the Selling Stockholders will use your, its and their best efforts to cause
the Registration Statement to become effective, if it has not yet become
effective, and to prevent the issuance of any stop order suspending the
effectiveness of the Registration Statement and, if such stop order be issued,
to obtain as soon as possible the lifting thereof.

         SECTION 11. Indemnification. (a) The Company and each Selling
Stockholder, jointly and severally, agree to indemnify and hold harmless each
Underwriter and each person, if any, who controls any Underwriter within the
meaning of the 1933 Act or the Exchange Act against any losses, claims, damages
or liabilities, joint or several, to which such Underwriter or such controlling
person may become subject under the 1933 Act, the Exchange Act or other federal
or state statutory law or regulation, at common law or otherwise (including in
settlement of any litigation if such settlement is effected with the written
consent of the Company and/or such Selling Stockholders, as the case may be),
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 any material fact contained in the Registration Statement,
including the information deemed to be part of the Registration Statement at the
time of effectiveness pursuant to Rule 430A, if applicable, any preliminary
prospectus, the Prospectus, or any amendment 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 will reimburse each Underwriter and each such
controlling person for any legal or other expenses reasonably incurred by such
Underwriter or such controlling person in connection with investigating or
defending any such loss, claim, damage, liability or action; provided, however,
that neither the Company nor any Selling Stockholder will be liable in any such
case to the extent that (i) any such loss, claim, damage or liability arises out
of or is based upon an untrue statement or alleged untrue statement or omission
or alleged omission made in the Registration Statement, any preliminary
prospectus, the Prospectus or any amendment or supplement thereto 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 use
therein; or (ii) if such statement or omission was contained or made in any
preliminary prospectus and corrected in the Prospectus and (1) any such loss,
claim, damage or liability suffered or incurred by any Underwriter (or any
person who controls any Underwriter) resulted from an action, claim or suit by
any person who purchased Shares which are the subject thereof from such
Underwriter in the offering and (2) such Underwriter failed to deliver or
provide a copy of the Prospectus to such person at or prior to the confirmation
of the sale of such Shares in any case where such delivery is required by the
1933 Act. In addition to their other obligations under this Section 11(a), the
Company and the Selling Stockholders agree that, as an interim measure during
the pendency of any such claim, action, investigation, inquiry or other
proceeding arising out of or based upon any statement or omission, or any
alleged statement or omission, described in this Section 11(a), they will
reimburse the Underwriters on a monthly basis for all reasonable legal and other
expenses incurred in connection with investigating or defending any such claim,
action, investigation, inquiry or other proceeding, notwithstanding the absence
of a judicial determination as to the propriety and enforceability of the
Company's and the Selling Stockholders' obligation to reimburse the Underwriters
for such expenses and the possibility that such payments might later be held to
have been improper by a court of competent jurisdiction. This indemnity
agreement will be in addition to any liability which the Company and the Selling
Stockholders may otherwise have.
<PAGE>

         Without limiting the full extent of the agreement of the Company and
the Selling Stockholders to indemnify each Underwriter, as herein provided, each
Selling Stockholder shall be liable under the indemnity agreements contained in
this Section 11(a) only for an amount not exceeding, in the case of each such
Selling Stockholder, the net proceeds (after deducting the Underwiters discount)
received by such Selling Stockholders from the sale of Shares hereunder;
provided however, that the payment obligation of the Selling Stockholders under
this Section 11(a) shall be limited to the amount of losses, claims, damages or
liabilities that are not paid by the Company under this Section 11(a) and such
payment shall not be required from the Selling Stockholders unless the
Underwriter or controlling person seeking indemnification shall have previously
sought indemnification from the Company first, as follows: (i) by serving a
written demand therefor upon the Company in accordance with the provisions of
Section 16 hereof, with a copy of such demand furnished to each Selling
Stockholder; and (ii) by commencing an action against the Company in a court of
competent jurisdiction. Each Underwriter and controlling person further agrees
that indemnification shall not be sought from any one or more of the Selling
Stockholders until the earlier of (x) the time for the Company to respond to the
complaint in the action to be commenced against the Company pursuant hereto has
expired, or (y) 90 days from the date of the commencement of the action by the
Underwriters or controlling person against the Company; provided, however, that
the foregoing limitations shall not apply with respect to any Selling
Stockholder (1) in the event and to the extent that any claim for
indemnification arises out of or is based upon an untrue statement or alleged
untrue statement, or omission or alleged omission made in the Registration
Statement, any preliminary prospectus, the Prospectus or such amendment or
supplement, in reliance upon and in conformity with written information
furnished to the Company by or on behalf of such Selling Stockholder, acting in
his individual capacity, specifically for use in the preparation thereof; or (2)
with respect to which the failure of any Underwriter or controlling person to
commence an action against such Selling Stockholder would result in such
Underwriter or controlling person being barred from bringing such action or
would otherwise abridge, nullify or eliminate the ability of such Underwriter or
controlling person to bring an action, or in any manner to forfeit any claims,
against such Selling Stockholder.

         (b) Each Underwriter will severally indemnify and hold harmless the
Company, each of its directors, each of its officers who signed the Registration
Statement, and each Selling Stockholder and each person, if any, who controls
the Company within the meaning of the 1933 Act or the Exchange Act, against any
losses, claims, damages or liabilities to which the Company, or any such
director, officer, Selling Stockholder or controlling person may become subject
under the 1933 Act, the Exchange Act or other federal or state statutory law or
regulation, at common law or otherwise (including in settlement of any
litigation, if such settlement is effected with the written consent of such
Underwriter), insofar as such losses, claims, damages or liabilities (or actions
in respect thereof) arise out of or are based upon any untrue or alleged untrue
statement of any material fact contained in the Registration Statement, any
preliminary prospectus, the Prospectus, or any amendment 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, in each case to the extent, but only to the
extent, that such untrue statement or alleged untrue statement or omission or
alleged omission was made in the Registration Statement, any preliminary
prospectus, the Prospectus, or any amendment or supplement thereto in reliance
upon and in conformity with Section 4 of this Agreement or any other written
information furnished to the Company by such Underwriter through the
Representatives specifically for use in the preparation thereof; and will
reimburse any legal or other expenses reasonably incurred by the Company, or any
such director, officer, Selling Stockholder or controlling person in connection
with investigating or defending any such loss, claim, damage, liability or
action. In addition to their other obligations under this Section 11(b), the
Underwriters agree that, as an interim measure during the pendency of any such
claim, action, investigation, inquiry or other proceeding arising out of or
based upon any statement or omission, or any alleged statement or omission,
described in this Section 11(b), they will reimburse the Company and the Selling
Stockholders on a monthly basis for all reasonable legal and other expenses
incurred in connection with investigating or defending any such claim, action,
investigation, inquiry or the proceeding, notwithstanding the absence of a
judicial determination as to the propriety and enforceability of the
Underwriters' obligation to reimburse the Company and the Selling Stockholders
for such expenses and the possibility that such payments might later be held to
have been improper by a court of competent jurisdiction. This indemnity
agreement will be in addition to any liability which such Underwriter may
otherwise have.
<PAGE>

         (c) Promptly after receipt by an indemnified party under this Section
of notice of the commencement of any action, such indemnified party will, if a
claim in respect thereof is to be made against an indemnifying party under this
Section, notify the indemnifying party of the commencement thereof; but the
omission so to notify the indemnifying party will not relieve it from any
liability which it may have to any indemnified party except to the extent that
the indemnifying party was prejudiced by such failure to notify. In case any
such action is brought against any indemnified party, and it notifies an
indemnifying party of the commencement thereof, the indemnifying party will be
entitled to participate in, and, to the extent that it may wish, jointly with
all other indemnifying parties similarly notified, to assume the defense
thereof, with counsel satisfactory to such indemnified party; provided, however,
if the defendants in 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, or the indemnified and indemnifying parties may have
conflicting interests which would make it inappropriate for the same counsel to
represent both of them, the indemnified party or parties shall have the right to
select separate counsel to assume such legal defense and otherwise to
participate in the defense of such action on behalf of such indemnified party or
parties. Upon receipt of notice from the indemnifying party to such indemnified
party of its election so to assume the defense of such action and approval by
the indemnified party of counsel, the indemnifying party will not be liable to
such indemnified party under this Section for any legal or other expenses
subsequently incurred by such indemnified party in connection with the defense
thereof unless (i) the indemnified party shall have employed such counsel in
connection with the assumption of legal defense in accordance with the proviso
to the next preceding sentence (it being understood, however, that the
indemnifying party shall not be liable for the expenses of more than one
separate counsel, approved by the Representatives in the case of paragraph (a)
representing all indemnified parties not having different or additional defenses
or potential conflicting interest among themselves who are parties to such
action), (ii) 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 commencement of the action or (iii) the
indemnifying party has authorized the employment of counsel for the indemnified
party at the expense of the indemnifying party. No indemnifying or indemnified
party shall, without the prior written consent of the indemnified or
indemnifying party, as the case may be, effect any settlement of any pending or
threatened proceeding in respect of which any indemnified or indemnifying party
is or could have been a party and indemnity could have been sought hereunder by
such indemnified or indemnifying party, unless such settlement includes an
unconditional release of such indemnified or indemnifying party from all
liability arising out of such proceeding.
<PAGE>

         (d) It is agreed that any controversy arising out of the operation of
the interim reimbursement arrangements set forth in paragraphs (a) and (b)
hereof, including the amount of any requested reimbursement payments, the method
of determining such amounts and the basis on which such amounts shall be
apportioned among the indemnifying parties, shall be settled by arbitration
conducted pursuant to the Code of Arbitration Procedure of the NASD. Any such
arbitration must be commenced by service of a written demand for arbitration or
a written notice of intention to arbitrate, therein electing the arbitration
tribunal. In the event the party demanding arbitration does not make such
designation of an arbitration tribunal in such demand or notice, then the party
responding to said demand or notice is authorized to do so. Any such arbitration
will be limited to the operation of the interim reimbursement provisions
contained in paragraphs 11(a) and (b) hereof and will not resolve the ultimate
propriety or enforceability of the obligation to indemnify for expenses that are
created by the provisions of such paragraphs 11(a) and (b) hereof.

         (e) If the indemnification provided for in this Section is unavailable
to an indemnified party under paragraphs (a) or (b) hereof in respect of any
losses, claims, damages or liabilities referred to therein, then each applicable
indemnifying party, in lieu of indemnifying such indemnified party, shall
contribute to the amount paid or payable by such indemnified party as a result
of such losses, claims, damages or liabilities (i) in such proportion as is
appropriate to reflect the relative benefits received by the Company, the
Selling Stockholders and the Underwriters from the offering of the Shares or
(ii) if the allocation provided by clause (i) above is not permitted by
applicable law, in such proportion as is appropriate to reflect not only the
relative benefits referred to in clause (i) above but also the relative fault of
the Company, the Selling Stockholders and the Underwriters in connection with
the statements or omissions which resulted in such losses, claims, damages or
liabilities, as well as any other relevant equitable considerations. The
respective relative benefits received by the Company, the Selling Stockholders
and the Underwriters shall be deemed to be in the same proportion in the case of
the Company and the Selling Stockholders, as the total price paid to the Company
and the Selling Stockholders for the Shares by the Underwriters (net of
underwriting discount but before deducting expenses), and in the case of the
Underwriters as the underwriting discount received by them bears to the total of
such amounts paid to the Company and the Selling Stockholders and received by
the Underwriters as underwriting discount in each case as contemplated by the
Prospectus. The relative fault of the Company and the Selling Stockholders and
the Underwriters shall be determined by reference to, among other things,
whether the untrue or alleged untrue statement of a material fact of the
omission to state a material fact relates to information supplied by the Company
or by the Selling Stockholders or by the Underwriters and the parties' relative
intent, knowledge, access to information and opportunity to correct or prevent
such statement or omission. The amount paid or payable by a party as a result of
the losses, claims, damages and liabilities referred to above shall be deemed to
include any legal or other fees or expenses reasonably incurred by such party in
connection with investigating or defending any action or claim.
<PAGE>

         The Company, the Selling Stockholders and the Underwriters agree that
it would not be just and equitable if contribution pursuant to this Section were
determined by pro rata allocation or by any other method of allocation which
does not take account of the equitable considerations referred to in the
immediately preceding paragraph. Notwithstanding the provisions of this Section,
no Underwriter shall be required to contribute any amount in excess of the
amount by which the total price at which the Shares underwritten by it and
distributed to the public were offered to the public exceeds the amount of any
damages which such Underwriter has otherwise been required to pay by reason of
such untrue or alleged untrue statement or omission or alleged omission. No
person guilty of fraudulent misrepresentation (within the meaning of Section
11(f) of the 1933 Act) shall be entitled to contribution from any person who was
not guilty of such fraudulent misrepresentation. The Underwriters' obligations
to contribute pursuant to this Section are several in proportion to their
respective underwriting commitments and not joint.

         (f) The provisions of this Section shall survive any termination of
this Agreement.

         Section 12. Default of Underwriters. It shall be a condition to the
agreement and obligation of the Company and the Selling Stockholders to sell and
deliver the Shares hereunder, and of each Underwriter to purchase the Shares
hereunder, that, except as hereinafter in this paragraph provided, each of the
Underwriters shall purchase and pay for all Shares agreed to be purchased by
such Underwriter hereunder upon tender to the Representatives of all such shares
in accordance with the terms hereof. If any Underwriter or Underwriters default
in their obligations to purchase Shares hereunder on the First Closing Date and
the aggregate number of Shares which such defaulting Underwriter or Underwriters
agreed but failed to purchase does not exceed 10 percent of the total number of
Shares which the Underwriters are obligated to purchase on the First Closing
Date, the Representatives may make arrangements satisfactory to the Company and
the Selling Stockholders for the purchase of such Shares by other persons,
including any of the Underwriters, but if no such arrangements are made by such
date the nondefaulting Underwriters shall be obligated severally, in proportion
to their respective commitments hereunder, to purchase the Shares which such
defaulting Underwriters agreed but failed to purchase on such date. If any
Underwriter or Underwriters so default and the aggregate number of Shares with
respect to which such default or defaults occur is more than the above
percentage and arrangements satisfactory to the Representatives and the Company
and the Selling Stockholders for the purchase of such Shares by other persons
are not made within 36 hours after such default, this Agreement will terminate
without liability on the part of any nondefaulting Underwriter or the Company or
the Selling Stockholders, except for the expenses to be paid by the Company
pursuant to Section 7 hereof and except to the extent provided in Section 11
hereof.
<PAGE>

         In the event that Shares to which a default relates are to be purchased
by the nondefaulting Underwriters or by another party or parties, the
Representatives or the Company shall have the right to postpone the First
Closing Date for not more than seven business days in order that the necessary
changes in the Registration Statement, Prospectus and any other documents, as
well as any other arrangements, may be effected. As used in this Agreement, the
term "Underwriter" includes any person substituted for an Underwriter under this
Section. Nothing herein will relieve a defaulting Underwriter from liability for
its default.

         Section 13. Effective Date. This Agreement shall become effective
immediately as to Sections 7, 9, 11 and 14 and as to all other provisions at
10:00 a.m., Chicago Time, on the day following the date upon which the Pricing
Agreement is executed and delivered, unless such a day is a Saturday, Sunday or
holiday (and in that event this Agreement shall become effective at such hour on
the business day next succeeding such Saturday, Sunday or holiday); but this
Agreement shall nevertheless become effective at such earlier time after the
Pricing Agreement is executed and delivered as you may determine on and by
notice to the Company and the Selling Stockholders or by release of any Shares
for sale to the public. For the purposes of this Section, the Shares shall be
deemed to have been so released upon the release for publication of any
newspaper advertisement relating to the Shares or upon the release by you of
telegrams (i) advising Underwriters that the Shares are released for public
offering, or (ii) offering the Shares for sale to securities dealers, whichever
may occur first.

         Section 14. Termination. Without limiting the right to terminate this
Agreement pursuant to any other provision hereof:

         (a) This Agreement may be terminated by the Company by notice to you
and the Selling Stockholders or by you by notice to the Company and the Selling
Stockholders at any time prior to the time this Agreement shall become effective
as to all its provisions, and any such termination shall be without liability on
the part of the Company or the Selling Stockholders to any Underwriter (except
for the expenses to be paid or reimbursed pursuant to Section 7 hereof and
except to the extent provided in Section 11 hereof) or of any Underwriter to the
Company or the Selling Stockholders.

         (b) This Agreement may also be terminated by you prior to the First
Closing Date, and the option referred to in Section 5, if exercised, may be
canceled at any time prior to the Second Closing Date, if (i) trading in
securities on the New York Stock Exchange, the American Stock Exchange or the
NASDAQ/NM shall have been suspended or maximum or minimum prices shall have been
established on such exchange, or (ii) a banking moratorium shall have been
declared by Illinois, New York, or United States authorities, (iii) there shall
have been any change in financial markets or in political, economic or financial
conditions which, in the reasonable opinion of the Representatives, either
renders it impractical or inadvisable to proceed with the offering and sale of
the Shares on the terms set forth in the Prospectus or materially and adversely
affects the market for the Shares, (iv) there shall have been an outbreak of
major armed hostilities between the United States and any foreign power which in
the opinion of the Representatives makes it impractical or inadvisable to offer
or sell the Shares, (v) if at or prior to the First Closing Date, or on or prior
to any later date on which Option Shares are to be purchased, as the case may
be, the Company shall have sustained a loss by strike, fire, flood, accident or
other calamity of such character as to interfere materially with the conduct of
the business and operations of the Company regardless of whether or not such
loss shall have been insured, or (vi) since the respective dates as of which
information is given in the Registration Statement and the Prospectus, there
shall have occurred any material adverse change or any development involving a
prospective material adverse change in or affecting the condition, financial or
otherwise, of the Company and its subsidiaries, taken as a whole, or the
earnings, business affairs, management, or business prospects of the Company and
its subsidiaries taken as a whole, whether or not arising in the ordinary course
of business. Any termination pursuant to this paragraph (b) shall be without
liability on the part of any Underwriter to the Company or the Selling
Stockholders or on the part of the Company to any Underwriter or the Selling
Stockholders (except for expenses to be paid or reimbursed pursuant to Section 7
hereof and except to the extent provided in Section 11 hereof).
<PAGE>

         Section 15. Representations and Indemnities to Survive Delivery. The
respective indemnities, agreements, representations, warranties and other
statements of the Company, of its officers, of the Selling Stockholders and of
the several 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 its or their partners,
officers or directors or any controlling person, or the Selling Stockholders as
the case may be, and will survive delivery of and payment for the Shares sold
hereunder.

         Section 16. Notices. All communications hereunder will be in writing
and, if sent to the Underwriters will be mailed, delivered or telegraphed and
confirmed to you c/o William Blair & Company, L.L.C. 222 West Adams Street,
Chicago, Illinois 60606, with a copy to Testa, Hurwitz & Thibeault, LLP 125 High
Street, Boston, Massachusetts 02110, Attention: William B. Asher, Jr., Esq.; if
sent to the Company will be mailed, delivered or telegraphed and confirmed to
the Company at its corporate headquarters with a copy to Ruskin, Moscou, Evans &
Faltischek, P.C., 170 Old Country Road, Mineola, New York 11501, Attention:
Raymond S. Evans, Esq.; and if sent to the Selling Stockholders will be mailed,
delivered or telegraphed and confirmed to the Agent and the Custodian at such
address as they have previously furnished to the Company and the Representative,
with a copy to Ruskin, Moscou, Evans & Faltischek, P.C., Attention: Raymond S.
Evans, Esq.

         Section 17. Successors. This Agreement and the Pricing Agreement will
inure to the benefit of and be binding upon the parties hereto and their
respective successors, personal Representatives and assigns, and to the benefit
of the officers and directors and controlling persons referred to in Section 11,
and no other person will have any right or obligation hereunder. the term
"successors" shall not include any purchaser of the Shares as such from any of
the Underwriters merely by reason of such purchase.

         Section 18. Representation of Underwriters. You will act as
Representatives for the several Underwriters in connection with this financing,
and any action under or in respect of this Agreement taken by you will be
binding upon all the Underwriters.
<PAGE>

         Section 19. Partial Unenforceability. If any section, paragraph or
provision of this Agreement is for any reason determined to be invalid or
unenforceable, such determination shall not affect the validity or
enforceability of any other section, paragraph or provision hereof.

         Section 20. Applicable Law. This Agreement and the Pricing Agreement
shall be governed by and construed in accordance with the laws of the State of
Illinois.

         Section 21. Release from Prior Lockup. That upon delivery by such
Selling Stockholder of an agreement with the Representatives consistent with the
description in Section 3(a)(vi) of this Agreement, each such Selling Stockholder
is hereby released from the "lock-up" restrictions contained in Section 3(a)(vi)
of that certain Underwriting Agreement between the Company, the Underwriters and
the Selling Stockholders dated November 17, 1995 for purposes of selling the
Firm Shares and, to the extent the Underwriters exercise their overallotment
option pursuant to Section 5 hereof, the Option Shares, set forth opposite their
names on Schedule B hereto.


                [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]


<PAGE>


         If the foregoing is in accordance with your understanding of our
agreement, kindly sign and return to us the enclosed duplicates hereof,
whereupon it will become a binding agreement among the Company, the Selling
Stockholders and the several Underwriters including you, all in accordance with
its terms.

                            Very truly yours,

                            PERIPHONICS CORPORATION


                            By:________________________________
                                 Chief Executive Officer

                            SELLING STOCKHOLDERS

                            Peter J. Cohen Grantor Trust
                            George W. Cole
                            Richard A. Daniels Grantor Retained Annuity Trust
                            Terrence Meehan
                            Kevin O'Brien
                            Jayandra Patel


                            By:_________________________________
                                 Agent and Attorney-in-Fact


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

WILLIAM BLAIR & COMPANY, L.L.C.
DAIN BOSWORTH INCORPORATED

Acting as Representatives of the
several Underwriters named in
Schedule A.

By:  William Blair & Company, L.L.C.


By:_______________________________
     Principal


<PAGE>


                                                                       EXHIBIT A


                             PERIPHONICS CORPORATION

                         1,100,000 Shares Common Stock*

                                PRICING AGREEMENT



                                                              ____________, 1996


William Blair & Company, L.L.C.
Dain Bosworth Incorporated
 As Representatives of the Several
 Underwriters
222 West Adams Street
Chicago, IL 60606

Ladies and Gentlemen:

         Reference is made to the Underwriting Agreement dated ___________, 1996
(the "Underwriting Agreement") relating to the sale by the Company and the
Selling Stockholders and the purchase by the several Underwriters, for whom
William Blair & Company, L.L.C. and Dain Bosworth Incorporated are acting as
representatives (the "Representatives"), of the above Shares. All terms herein
shall have the definitions contained in the Underwriting Agreement except as
otherwise defined herein.

         Pursuant to Section 5 of the Underwriting Agreement, the Company and
each of the Selling Stockholders agree with the Representatives as follows:

         1.       The public offering price per share of the Shares shall be
$_______.

         2. The purchase price per share for the Shares to be paid by the
several Underwriters shall be $______, being an amount equal to the public
offering price set forth above less $_____ per share.


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

* Plus an option to acquire up to 165,000 additional shares to cover
  overallotments.


<PAGE>


         Schedule A is amended as follows.

         If the foregoing is in accordance with your understanding to our
agreement, kindly sign and return to us the enclosed duplicates hereof,
whereupon it will become a binding agreement among the Company, the Selling
Stockholders and the several Underwriters, including you, all in accordance with
its terms.

                               Very truly yours,

                               PERIPHONICS CORPORATION

                               By:_________________________________
                                    Chief Executive Officer

                               SELLING STOCKHOLDERS

                               Peter J. Cohen Grantor Trust
                               George W. Cole
                               Richard A. Daniels Grantor Retained Annuity Trust
                               Terrence Meehan
                               Kevin O'Brien
                               Jayandra Patel


                               By:_________________________________
                                    Agent and Attorney-in-Fact


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

WILLIAM BLAIR & COMPANY, L.L.C.
DAIN BOSWORTH INCORPORATED

Acting as Representatives of the
several Underwriters

By: William Blair & Company, L.L.C.


By:_______________________________
     Principal


<PAGE>


                                   SCHEDULE A


                                                         Number of Firm
                                                          Shares to be
Underwriters                                                Purchased
- ------------                                             --------------

William Blair & Company, L.L.C.
Dain Bosworth Incorporated



                                                            ---------
                                             Total:         1,100,000



<PAGE>


                                   SCHEDULE B

                                       Number of Firm        Number of Option
                                      Shares to be Sold      Shares to be Sold
                                      -----------------      -----------------
                                                              


Selling Stockholders:

Peter J. Cohen Grantor Trust               296,962                   44,542
George W. Cole                             178,454                   26,768
Richard A. Daniels Grantor
 Retained Annuity Trust                    252,808                   37,922
      
Terrence Meehan                            118,968                   17,846
Kevin O'Brien                              118,968                   17,846
Jayandra Patel                             133,840                   20,076
                                           -------                   ------

                    Total:               1,100,000                  165,000
                                         =========                  =======



<PAGE>


                                   SCHEDULE C


                     Comfort Letter of Deloitte & Touche LLP


         (1) They are independent public accountants with respect to the Company
and its subsidiaries within the meaning of the 1933 Act.

         (2) In their opinion the consolidated financial statements of the
Company and its subsidiaries included or incorporated by reference in the
Registration Statement and the consolidated financial statements of the Company
from which the information presented under the caption "Selected Consolidated
Financial Data" has been derived, which are stated therein to have been examined
by them, comply as to form in all material respects with the applicable
accounting requirements of the 1933 Act and the Exchange Act.

         (3) On the basis of specified procedures (but not an audit in
accordance with generally accepted auditing standards), including inquiries of
certain officers of the Company and its subsidiaries responsible for financial
and accounting matters as to transactions and events subsequent to __________,
199_, a reading of minutes of meetings of the stockholders and directors of the
Company and its subsidiaries since _____________, 199_, a reading of the latest
available interim unaudited consolidated financial statements of the Company and
its subsidiaries (with an indication of the date thereof) and other procedures
as specified in such letter, nothing came to their attention which caused them
to believe that (i) the unaudited consolidated financial statements of the
Company and its subsidiaries included or incorporated by reference in the
Registration Statement do not comply as to form in all material respects with
the applicable accounting requirements of the 1933 Act and the Exchange Act or
that such unaudited financial statements are not fairly presented in accordance
with generally accepted accounting principles applied on a basis substantially
consistent with that of the audited financial statements included in the
Registration Statement, and (ii) at a specified date not more than five days
prior to the date thereof in the case of the first letter and not more than two
business days prior to the date thereof in the case of the second letter, there
was any change in the capital stock or long-term debt or short-term debt (other
than normal payments) of the Company and its subsidiaries on a consolidated
basis or any decrease in consolidated net current assets or consolidated
stockholders' equity as compared with amounts shown on the latest unaudited
balance sheet of the Company included in the Registration Statement or for the
period from the date of such balance sheet to a date not more than five days
prior to the date thereof in the case of the first letter and not more than two
business days prior to the date thereof in the case of the second letter, there
were any decreases, as compared with the corresponding period of the prior year,
in consolidated net sales, consolidated income before income taxes or in the
total or per share amounts of consolidated net income except, in all instances,
for changes or decreases which the Prospectus discloses have occurred or may
occur or which are set forth in such letter.

         (4) They have carried out specified procedures, which have been agreed
to by the Representative, with respect to certain information in the Prospectus
specified by the Representative, and on the basis of such procedures, they have
found such information to be in agreement with the general accounting records of
the Company and its subsidiaries.






<PAGE>


                         INDEPENDENT AUDITORS' CONSENT


We consent to the incorporation by reference in this Registration Statement of
Periphonics Corporation on Form S-3 of our report dated July 15, 1996, appearing
in the Annual Report on Form 10-K of Periphonics Corporation for the year ended
May 31, 1996 and to the reference to us under the headings "Selected Financial
Data" and "Experts" in the Prospectus, which is part of this Registration
Statement.





/s/   DELOITTE & TOUCHE LLP
- ------------------------------
   DELOITTE & TOUCHE LLP



Jericho, New York
October 21, 1996






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