DIALOGIC CORP
10-K, 1999-03-26
COMPUTER COMMUNICATIONS EQUIPMENT
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                            ________________________

                                    FORM 10-K

[X] Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act
    of 1934 for the fiscal year ended December 31, 1998.

[ ] Transition  Report  Pursuant  to  Section  13 or  15(d)  of the  Securities 
    Exchange  Act  of  1934  for  the transition period from ____ to ______.

                         Commission File Number 33-59598

                              DIALOGIC CORPORATION
             (Exact name of registrant as specified in its charter)

           New Jersey                                    22-2476114
(State or other jurisdiction of          (I.R.S. Employer Identification Number)
incorporation or organization)

           1515 Route 10, Parsippany, New Jersey 07054 (973) 993-3000
      (Address and telephone number, including area code, of registrant's
                          principal executive office)

        Securities registered pursuant to Section 12(b) of the Act: none.

           Securities registered pursuant to Section 12(g) of the Act:

                               Title of each class

                  Common Stock, no par value, stated value $.01

          Indicate  by check  mark  whether  the  registrant  (1) has  filed all
reports  required to be filed by Section 13 or 15(d) of the Securities  Exchange
Act of 1934 during the preceding 12 months (or for such shorter  period that the
registrant  was required to file such  reports) and (2) has been subject to such
filing requirements for the past 90 days.

                                   Yes X No __

          Indicate by check mark if disclosure of delinquent  filers pursuant to
Item 405 of Regulation S-K is not contained  herein,  and will not be contained,
to the best of the  registrant's  knowledge,  in definitive proxy or information
statements  incorporated  by  reference  in Part  III of this  Form  10-K or any
amendment to this Form 10-K. [ ]

          Aggregate  market value of voting stock held by  non-affiliates  as of
February 1, 1999 was approximately $292,404,000 .

          Number of shares of Common Stock  outstanding  as of February 1, 1999:
16,394,993.

          Documents incorporated by reference: Annual report to shareholders for
the year ended December  31, 1998 (Part II);  Definitive proxy statement for the
registrant's 1999 annual meeting of shareholders (Part III).

<PAGE>

                              DIALOGIC CORPORATION
                                TABLE OF CONTENTS

PART I                                                                   Page

Item 1       Business of the Company................................       3

Item 2.      Properties.............................................       23

Item 3       Legal Proceedings......................................       23

Item 4       Submission of Matters to a Vote of Security Holders....       25

Item 4A      Executive Officers of the Registrant...................       25

PART II

Item 5       Market for the Registrant's Common Equity and 
             Related Stockholder Matters............................       28

Item 6       Selected Financial Data................................       28

Item 7       Management's  Discussion  and Analysis of Results 
             of Operations  and Financial Condition.................       28

Item 7A      Quantitative and Qualitative Disclosure About Market Risk     28

Item 8       Financial Statements and Supplementary Data.............      28

Item 9       Changes in and  Disagreements  with  Accountants  on 
             Accounting  and Financial Disclosure....................      29

PART III

Item 10       Directors of the Registrant............................      30

Item 11       Executive Compensation.................................      30

Item 12       Security Ownership of Certain Beneficial Owners 
                 and Management......................................      30

Item 13       Certain Relationships and Related Transactions.........      30

PART IV

Item 14        Exhibits, Financial Statements Schedules 
                   and Reports on Form 8-K...........................      31

Signatures      .....................................................      34

<PAGE>

Item 1.  Business of the Company

Introduction

          Dialogic  Corporation was  incorporated in New Jersey in 1983, and has
its principal executive offices located at 1515 Route 10, Parsippany, New Jersey
07054.  The terms  "Company"  and  "Dialogic"  used in this report  refer to the
Registrant  and its  consolidated  subsidiaries  unless  the  context  indicates
otherwise1.
 
          On February 17, 1998, the Company sold substantially all of the assets
of its Spectron Microsystems,  Inc. subsidiary, which had been acquired in 1995,
to  Texas  Instruments  Inc.  for  approximately  $26  million  in cash  and the
assumption  by  the  buyer  of  substantially  all  of  Spectron   Microsystems'
liabilities.  Spectron  Microsystems was in the business of developing  software
for DSP operating systems.

          Certain  statements  contained  in this  Annual  Report on Form  10-K,
including,  without  limitation,  statements  containing  the words  "believes",
"anticipates",  "estimates",  "expects", and words of similar import, constitute
forward  looking  statements  within  the  meaning  of  the  Private  Securities
Litigation Reform Act of 1995  ("Forward-Looking  Statements").  Such statements
are subject to risks and uncertainties that could cause actual results to differ
materially  from those  projected in such  Forward-Looking  Statements.  Certain
factors which could materially affect such results and the future performance of
the Company are described below under "-- Risk Factors".

General

          Dialogic  designs,  manufactures  and markets  hardware  and  software
enabling technologies for "computer telephony" systems.  "Computer telephony" is
the term used to encompass a wide variety of technologies and applications  that
use the  information  processing  capabilities of a computer (often a server) to
add intelligence to telephone functions and to combine these functions with data
processing.  The Company's  products are offered as modular building blocks that
enable  its  customers--primarily   Value-Added  Resellers  ("VARs"),   Original
Equipment  Manufacturers  ("OEMs"),  systems integrators,  service providers and
applications  developers--to  design  computer  telephony  systems that meet the
applications  demands of their  end-user  customers.  Dialogic  has promoted the
acceptance of open,  non-proprietary  computer telephony  systems,  enabling its
customers  to  respond  to  end-user  demand  for  standards-based  systems  and
expanding  the  types of  systems  into  which  the  Company's  products  may be
incorporated.  The Company's customers vary in size from small ventures to major
computer and telecommunications companies worldwide.

          The Company's  hardware signal computing  products receive and process
signals  from  telecommunications  networks and perform  computing  functions to
convert the signals to data  appropriate for various types of computer  systems.
These  computing  functions are based upon algorithms for a variety of features,
including voice compression, voice storage, speech recognition, tone recognition
and facsimile compression.  Conversely,  the Company's signal computing products
also  take   computer   data  and   convert  it  to  signals   compatible   with
telecommunications  networks by using  algorithms  for  features  such as speech
synthesis,  voice  decompression,   tone  signaling  and  facsimile  generation.
Dialogic's signal computing  hardware products  typically provide one or both of
two  elements--a  signal  processing  resource and a network  interface.  Signal
processing  resources perform specific  functions.  Network interfaces connect a
system, normally a personal computer, to telephone and data networks. Dialogic's
hardware  products  are  offered in the form of circuit  boards/platforms  to be
installed  in a  variety  of  computer  chassis.  Typically,  Dialogic  hardware
products are provided  bundled with software  elements,  such as drivers,  which
enable the hardware product to work in the host environment and to be compatible
with other  elements  within the  system in which they are  installed.  Software
functionality  is  also  contained  in the  firmware  modules  of the  Company's
hardware products.

          The  Company  also  licenses  the use of various  standalone  software
products,   such  as  CT  Connect  and  CT  Media,   which  provide   middleware
functionality  within a system,  enabling an application designer to design to a
uniform Applications  Programming  Interface ("API") and provide server resource
management  and  application  interoperability.  Dialogic also provides  various
products  which include  third party  provided  technology  embedded in Dialogic
boards,  particularly  involving text to speech and voice recognition on Antares
boards.  Dialogic  services are addressed to  professional,  technical  support,
consulting, training and custom platform services.

          Dialogic  offers a broad  product  line,  allowing  its  customers  to
develop computer telephony  applications with components that are compatible and
scaleable across different ranges of density and performance. Such applications,
which are marketed by Dialogic's  customers for ultimate use in public networks,
private networks and on customer premises, include:

     o   Internet gateway and gatekeeper applications, including:
         o   Voice over the Internet
         o   Fax over the Internet
     o   Database interaction  applications,  which query and make changes to 
         databases based on touchtone or voice input, including:
          o    Audiotex - giving  24-hour  telephone  access to a  menu-selected
               database of recorded (spoken) information
          o    Fax-on-demand   -   giving   24-hour   telephone   access   to  a
               menu-selected database of printed information
          o    Interactive  voice  response - giving 24-hour  telephone  access,
               with update privileges, to an indexed database of records
          o    Interactive  fax  response - faxing  hard-copy  confirmations  of
               touchtone queries or transactions 
      o    Multimedia  applications  which store and forward  data,  fax and
               voice,  including:  

<PAGE>

          o    Voice mail 
          o    Fax   servers,   which   typically   enable   desktop   users  to
               electronically   generate,   transmit,  store  and  retrieve  fax
               messages via local area network connections
          o    Paging
          o    Unified messaging,  which presents e-mail, fax and voice messages
               through one screen  interface  and converts from e-mail to fax or
               voice for remote telephone access.  Multimedia  messaging systems
               link voice mail,  email, and fax services,  presenting  access to
               all three types of media  messages from one  workstation  screen,
               and allowing users to hear,  read, or view them in any order they
               choose. These systems can also receive messages in one medium and
               forward  them in another.  For  example,  email  messages  can be
               converted  using   text-to-speech  (TTS)  technology  into  voice
               messages that can then be accessed from a telephone.
     o    Intelligent call control  applications,  which automate  services
          that once required the intervention of an operator, including:
          o    Call  centers,  where a large  number of agents  process  inbound
               requests or outbound sales calls
          o    Help desk automation, which directs a call to the support staffer
               with the appropriate expertise
          o    Conferencing,  which  enables  more  than two  parties  to call a
               control  number,   with  active  or  passive  (i.e.,   listening)
               privileges
          o    Predictive/autodialing,   which  dials  out  to  lists  of  phone
               numbers,   screens  out  certain  calls  (e.g.,  no-answers)  and
               delivers live prospects to telemarketing agents
          o    Personal  communications  agents,  which screen and forward calls
               based on a user's itinerary and instructions
          o    PBX,  which  enables  connections  between  users both within the
               system and to parties outside the system
          o    Voice  dialing,  which  generates  a dial  sequence  based on the
               user's spoken input
     o    Voice  Processing  Applications,  which  use  speech  recognition  and
          Text-to-Speech
     o    Open  Communications  Servers,  which provide PC-based open switching,
          permitting  integration  of  call  switching  and  computer  telephony
          technologies

         Strategy

          The  first  computer  telephony  systems,  like  the  first  computing
systems,  were built using proprietary hardware and software.  Over the last few
years numerous computer telephony vendors have adopted open, or non-proprietary,
personal  computer  ("PC")  platforms and standard  operating  systems,  such as
Windows  NT,  Windows 95,  UNIX,  OS/2,  or DOS,  as elements of their  computer
telephony systems. This shift toward open platforms has been driven by the rapid
increase  in  performance  and power of  standard  microprocessors,  the general
availability  of  add-on  hardware  and  software  components,   growth  in  the
functionality of the PC and cost savings due to lower PC prices.

          The  Company's  strategy is to position  Dialogic to benefit  from the
growing acceptance of open call processing systems. The Company seeks to support
this strategy through the following approaches:

<PAGE>

     o    Advocate Open Systems.  The Company  believes that open  architectures
          provide many advantages to systems developers,  including (i) reducing
          the time  needed  to bring  new  products  to  market,  (ii)  reducing
          customers'   maintenance  and  continuing   engineering  costs,  (iii)
          providing  access  to  a  variety  of  technologies  from  third-party
          vendors,  (iv) enabling  customers to focus their efforts on marketing
          and end-user applications,  (v) protecting customers so that they will
          not be  dependent  upon  a  particular  technology  and  therefore  be
          precluded from accessing new technologies and (vi) enabling  customers
          and  end-users  to benefit  from the  economies  associated  with open
          architectures.  As  part  of its  commitment  to  open  architectures,
          Dialogic  designs  its  modular  components  to  satisfy   established
          industry standards. Its products work in a variety of PC platforms and
          form factors and support standard operating systems.  Furthermore,  to
          support its  international  sales  efforts,  the  Company  designs its
          products to meet international  telecommunications  standards.  At the
          same time,  Dialogic  advocates  the value to end-users of  requesting
          their  computer  telephony  vendors to provide open  systems,  thereby
          encouraging the "pull through" of open components.
     o    Develop Signal Computing  Technologies.  Dialogic believes that voice,
          image and data processing technologies are converging at a rapid rate.
          This  convergence  is  reflected  in the demand for unified  messaging
          systems in the  telecommunications  and computing  industries.  In the
          telecommunications  field, voice processing systems are being designed
          to integrate  voice, fax and e-mail  messages;  similarly,  within the
          computing industry, unified messaging may be addressed by servers that
          provide the client with access to voice, fax and e-mail  messages.  By
          focusing on signal computing  technologies,  such as the Company's DM3
          Mediastream   Architecture,   Dialogic  seeks  to  have  its  products
          incorporated in a wide variety of business computing applications that
          address one or more voice, image and data processing functions.  As PC
          platforms decline in price and continue to be widely deployed,  and as
          reliable,  user-friendly  multi-tasking  operating systems become more
          widely  accepted,  the Company  intends to provide its customers  with
          products  that  support  multi-application  uses and that benefit from
          this technological convergence. This statement regarding the Company's
          intent  constitutes a  Forward-Looking  Statement.  Actual results may
          differ  from  the  Company's  intentions  as a result  of a number  of
          factors,  including the extent to which the Company is able to respond
          to technological  developments and competitive responses.  See "--Risk
          Factors".
     o    Promote  Open  Communications  Servers:   Increasingly,   Dialogic  is
          focusing activities on enabling open communications  servers, based on
          a client/server  computing  model. The open  communications  server is
          analogous to the concept of a database server that is open to multiple
          suppliers  and  applications.   In  this  open,  client/server  model,
          telephony  becomes  a peer to  other  computing  resources.  The  open
          communications   server  can  support   traditional  and  IP  networks
          transparently,  and it can be  integrated  and  managed  with other IT
          services.   Software   interoperability   and  wider  application  and
          technology choices become key differentiating  features.  The elements
          of Dialogic's vision of an open communications server include:
          o    Interoperable applications and software tools
          o    Standards-based administration tools
          o    Choice of standard, open APIs (TAPI, S.100, CSTA)
          o    Standards-based   middleware   (CT   Media[TM]  for  Windows  NT,
               CT-Connect[TM] software)
          o    Choice of standard,  modular hardware  technologies  (voice, fax,
               Automatic  Speech   Recognition,   Text  To  Speech,   switching,
               conferencing;  T-1, E-1, ISDN, BRI, ATM interfaces;  based on the
               ECTF H.100/H.110 connection standard)
          o    Open,  standard  computing  platforms and operating systems (ISA,
               PCI, cPCI, VME; Windows NT, UNIX)
          o    Wide  range  of   technologies   delivered  on   standards-based,
               high-performance,  modular,  scalable  components  from different
               vendors
          o    Standard SPIs (based on the emerging ECTF S.300 specification)
          o    Standard  hardware  interfaces  and software  APIs that  simplify
               development and ensure  interoperability  and portability  across
               platforms
          o    Expandable  and scalable  servers  (from  2-port to  high-density
               multiport solutions)
          o    Servers that run on standard computing platforms
          o    Ease  in  adding  new  features  and   services   using   modular
               "off-the-shelf" components and applications

          These  statements  regarding  the  Company's  intent and the  eventual
elements  of  an  open   communications   server  constitute  a  Forward-Looking
Statement.  Actual results may differ from the Company's  intentions as a result
of a number of  factors,  including  the extent to which the  Company is able to
respond to technological developments and competitive responses; the development
of  industry  and de  facto  standards;  availability,  features  and  price  of
alternative  approaches and  marketplace  adoption of Dialogic's  approach.  See
"--Risk Factors" 

     o    Initiate and Promote Uniform  Standards.  Dialogic's  Signal Computing
          System Architecture  ("SCSA") reflects the Company's commitment to the
          expansion  of  existing  call  processing   technology   through  open
          architectures.  The goal of SCSA is to develop and gain broad domestic
          and  international  acceptance  for a variety  of  computer  telephony
          standards and  technologies.  The  essential  elements of SCSA are the
          development  of  (i)  software  standards  for  use  by  the  computer
          telephony industry, (ii) buses with increased bandwidth and capability
          to support  high  capacity  platforms,  (iii) a wide range of products
          available  from  multiple  vendors that enable  systems  developers to
          integrate voice, image and data technologies in order to build unified
          messaging  solutions and (iv) technologies that are designed to permit
          scalability  from  single  node  stand-alone   systems  to  multi-node
          distributed systems,  thereby allowing customers to expand from low to
          high capacity products with relative ease. SCSA  participants  include
          computer  suppliers,  component  manufacturers,   hardware  suppliers,
          algorithm and technology developers, call processing systems suppliers
          and leading telecommunications equipment manufacturers.  Substantially
          all  of  the  major  products  in  Dialogic's   current  product  line
          incorporate  one or more  aspects of SCSA.  In 1995,  Dialogic  joined
          Digital   Equipment    Corporation,    Ericsson   Business   Networks,
          Hewlett-Packard   and  Northern  Telecom  in  forming  the  Enterprise
          Computer  Telephony Forum ("ECTF").  The principal goal of the ECTF is
          to oversee the evolution of industry-wide standards implementation for
          computer  telephony.  Dialogic has  contributed  to ECTF its Telephone
          Application   Object  (TAO)  software   framework  to  assist  in  the
          development  of a series of open  interfaces.  In the Internet  field,
          Dialogic   has   been   active   in   the   International   Multimedia
          Teleconferencing Consortium, the European Telecommunications Standards
          Institute ("ETSI"),  the Internet  Engineering Task Force ("IETF") and
          the   International   Telecommunications   Union  ("ITU")   advocating
          standards for Internet  products that will enable  different  vendors'
          gateways and products to interoperate.  Dialogic's CT Media middleware
          product is an implementation of the ECTF S.100 standard. Dialogic also
          works with de facto  standards,  such as Microsoft's  TAPI  (Telephony
          Applications Programming Interface).
     o    Leverage  Technological  Expertise in Computer  Telephony.  Dialogic's
          core technical  competence is the  development  of computer  telephony
          technologies that are embedded in the Company's hardware, software and
          digital  signal  processing  algorithms.  Dialogic  believes  that its
          future  success  depends  upon its ability to  continually  expand its
          technical  capabilities and to provide technically advanced components
          that are responsive to technological  advances and changes in industry
          standards.  Dialogic  also has  increased  its  efforts in  developing
          professional  services as a business  unit drawing on this  expertise.
          Accordingly,  the  Company  spends,  and intends to continue to spend,
          substantial  amounts on research and  development.  Statements in this
          Annual  Report  regarding  future  research and  development  spending
          constitute Forward Looking Statements.  See "--Risk Factors".  Factors
          that  could  affect the level of  research  and  development  spending
          include market conditions, the nature of customer demand, competitors'
          product  announcements,  patent and/or license availability and claims
          and regulatory requirements.
     o    Provide Customers with a Broad Range of Products. Dialogic enables its
          systems  developer  customers  to develop  and offer a broad  range of
          applications  by providing its customers with building blocks that are
          designed to conform to widely accepted standards, much in the same way
          that the  standardization  of PC  platforms  has resulted in an entire
          industry of data processing software developers. The Company's modular
          approach also enables  systems  developers  and  integrators  to build
          progressively  larger systems with more  application  features without
          making significant changes in the underlying technologies.
     o    Develop Collaborative Customer  Relationships.  Dialogic believes that
          it is essential to maintain close communications with its customers in
          order to understand  their needs.  Through  contacts at both the field
          and management  levels,  the Company  reviews  application  design and
          hardware  configuration  issues and  application  objectives  with its
          customers.  Dialogic  seeks to serve as a problem solver in helping to
          construct new and enhanced call processing  systems.  The Company also
          seeks  to  educate  systems   developers  about  the  broad  range  of
          applications  that  may be  provided  through  use  of  the  Company's
          computer telephony components, in part by conducting seminars to train
          customers' engineers in the use and potential applications of Dialogic
          modules.
     o    Expand  International  Presence.  Dialogic  believes  that advances in
          voice, image and data processing  technologies,  growing international
          acceptance  of the  benefits  available  from these  technologies  and
          deregulation and  privatization  of  international  telecommunications
          networks  will  drive  increased   acceptance  of  computer  telephony
          technology  in  international  markets.  Dialogic  also  believes that
          certain  voice  processing  markets  are less mature than those in the
          United  States  and  offer  more  opportunities  for both  traditional
          products, like voice mail, and for leapfrogging technology, like voice
          over Internet.  See "--Risk  Factors." No assurances can be given with
          respect  to the pace of  deregulation  and  privatization,  which  may
          differ  significantly from country to country,  or the degree to which
          deregulation  and  privatization  may  result  in demand  for  Company
          products.  The Company's  familiarity  with  international  regulatory
          requirements has enabled it to gain approvals for its products in many
          international   markets,   thus   providing  its  customers  with  the
          opportunity  to reduce the time  necessary  to market  their  products
          internationally.
     o    Complement Internal Growth with Strategic Alliances,  Acquisitions and
          Investments.  Dialogic believes that opportunities exist to extend and
          enhance its current  lines of business and  distribution  capabilities
          through  investments in or  acquisitions of businesses in the computer
          telephony industry and related fields and through alliances with other
          entities. Management intends to analyze such opportunities that become
          available to the Company and to consider pursuing those  opportunities
          that complement or supplement its business strategies.

          Dialogic's  presentation above of its business strategies reflects the
Company's  planning  for the future and thus may  constitute  a  Forward-Looking
Statement.  No assurance can be given as to whether or as to the extent that the
Company will be  successful in the pursuit of its business  strategies.  Factors
which could impact the Company's ability to pursue such strategies are set forth
below under "--Risk Factors".

     Products

          Dialogic   operates  and  manages  its  business  under  one  segment,
"Computer  Telephony." "Computer Telephony" is the term used to encompass a wide
variety of technologies  and  applications  that use the information  processing
capabilities of a computer (often a server) to add intelligence functions and to
combine  those  functions  with data  processing.  Management  has  reached  the
conclusion that the Company operates as one segment after  considering a variety
of factors including the nature of products sold,  production process,  customer
base and distribution methods and determining that they are similar entity wide.
The Company primarily derives its revenue from the sale of telephony boards that
are offered as modular  building  blocks  that enable its  customers - primarily
VARs, OEMs, system integrators,  service providers and application  developers -
to design computer telephony systems that meet the application  demands of their
end-user customers. Individual products are described below.

o    Dialogic Media and Network Interface Products
     o    IP Telephony Products - DM3[TM] IPLink[TM] Platform products are a set
          of medium- to high-port  density  boards which are designed to provide
          voice and fax capability over Internet  Protocol (IP) networks.  These
          products are used in IP telephony  gateways,  corporate  WAN telephony
          traffic,  and  Web-enabled  call  centers.  IPLink  Platform  products
          feature an on-board H.323 stack,  multiple vocoding algorithm support,
          comprehensive   H.323  client  support,   standard  Internet  protocol
          support, and advanced voice and call processing features.
     o    High-Density  Voice  Products - These board  products are designed for
          public  network-based  enhanced  services,  call  centers,  and  other
          demanding  high-volume  voice  applications  in  the  enterprise.  The
          QuadSpan[TM] Series, based on Dialogic's

<PAGE>

          DM3  mediastream  architecture,  features  four  on-board  T-1  or E-1
          digital  network  interfaces for up to 120 voice ports  available in a
          single PC slot. The  SingleSpan[TM]  and  DualSpan[TM]  Series provide
          different   voice-port-per-slot   densities  for   optimizing   system
          configurations.  Dialogic  high-density  voice products feature analog
          loop start or digital  network  interfaces  and  SCbus[TM]/CT  Bus[TM]
          (ECTF H.100/H.110) connectivity.  They are available in ISA, PCI, VME,
          and cPCI form factors.
          Dialogic voice products are based on Dialogic's  SpringWare[TM]  voice
          algorithms,  which  include  PerfectVoice[TM]  enhanced  voice coding,
          PerfectDigit[TM]  DTMF and MF  signaling,  Global Tone  Detection[TM],
          Global Tone  Generation[TM],  PerfectCall[TM]  call progress analysis,
          PerfectPitch[TM]  speed  control,   PerfectLevel[TM]  volume  control,
          Global Dial Pulse  Detection[TM],  Positive Voice  Detection[TM],  and
          Positive Answering Machine Detection[TM].
     o    High-Density  Fax  Products - Dialogic's  DM3 Fax Series  products are
          facsimile  boards that  provide 24 or 30 send and receive fax ports of
          processing   power,   various   messaging   alternatives,   14.4  Kb/s
          transmission and reception rates, and T.30 connectivity,  based on DM3
          architecture.  Dialogic  high-density  fax  products  feature  digital
          network interfaces,  SCbus/CT Bus connectivity, and ISA, PCI, VME, and
          cPCI form factors.
     o    Low-Density  Voice  Products - A series of  Dialogic  voice  messaging
          products  like  the  DIALOG/4[TM],   ProLine/2V[TM],   D/21H[TM],  and
          D/41H[TM]  provide  boards  with  2- or  4-ports  of  voice  for  less
          demanding  applications.  The D/42[TM]  Series allows  integration  of
          voice messaging features with popular PBXs. Starter Kits are available
          for  beginning  CT  developers.  All  low-density  voice  products use
          SpringWare voice processing features.
     o    Low-Density  Fax  Products  -  Dialogic  CP  fax  products,  like  the
          CPi/200[TM],  CPD/220[TM] and CP4/LSI[TM],  are boards which provide a
          wide range of densities, form factors and network interfaces.
     o    Enhanced  Speech  Technology   Products  -  Dialogic  platform  speech
          technology    components   support   automatic   speech   recognition,
          text-to-speech,  speech compression, and voice verification from third
          party providers. The Antares Open Platform is a general purpose signal
          processing platform which connects to other call processing  platforms
          over a digital bus.  Various  third-parties  have  developed  enhanced
          software  for the Antares  platform.  Speech  recognition  capability,
          provided  by  companies  such as  Voice  Control  Systems,  Lernout  &
          Hauspie,  PureSpeech,   Telefonica,  CSELT  and  France  Telecom/CNET,
          enables call  processing  applications  to interpret words spoken by a
          telephone  caller.  Enhanced  capabilities  include  continuous speech
          recognition,    alphabet   recognition   and   speaker   verification.
          Text-to-speech software has been developed for the Antares platform by
          Lernout & Hauspie,  Centigram,  Telefonica  and CSELT.  These products
          convert ASCII text to  synthesized  speech,  enabling call  processing
          applications to play back selected information files.
     o    Professional  Conferencing  Products -  Dialogic's  DCB/SC[TM]  Series
          boards provide  capabilities  for high-end  professional  conferencing
          requiring  multiple  conference  support,  large  numbers of conferees
          (over 100),  and  sophisticated  features like active  talker  status,
          on-board DTMF  detection/clamping,  coaching,  and  individual  volume
          control. Less demanding business conferencing applications can use the
          MSI/SC[TM] Series for connecting analog devices to digital networks.
     o    Network Interface  Products - Dialogic has network interface  products
          supporting a variety of protocols,  including  SS7, ATM, BRI ISDN, PRI
          ISDN, analog loop start,  T-1/E-1 digital, and Internet protocol (IP).
          Some products are network  interface-only boards that can be connected
          via the SCbus/CT Bus with compatible  products.  Others are integrated
          with Dialogic media  firmware to create  combination  products  (media
          with interface  products) that have SCbus/CT Bus  connectivity  or are
          standalone (nonbus) products.

o    Dialogic Subsystem Products
     o    VoiceBrick[TM]  - An  integrated  voice  mail  platform  for the small
          office, the VoiceBrick  platform is an open,  self-contained unit with
          2- or 4-port voice,  flash memory,  a built-in  real-time clock, and a
          watch dog timer for automatic recovery from application crashes.
     o    DVM[TM] Series - Dialogic Voice  Modules[TM]  are integrated  hardware
          platforms  combining Dialogic  SpringWare voice processing  technology
          and a low-profile PC system, designed for volume OEM customers.
     o    Dialogic Software Products
          Historically,  revenue from the sale of standalone  software  products
          has not been material to the overall revenue of the Company.  Software
          products are described below.
     o    CT Media for Windows NT - CT Media  middleware  handles the details of
          resource  management and allows  applications to  interoperate  and be
          independent  of the  underlying  hardware.  CT Media  for  Windows  NT
          middleware  provides a key component for building open  communications
          servers.  Based on the SCSA Software Model, CT Media middleware allows
          application  developers to write  software to standard APIs (like TAPI
          or ECTF S.100) that can run on a common  server.  CT Media  middleware
          handles the details of resource  management  including managing system
          resources,  grouping and  providing  resources  to handle  application
          tasks,  and  transferring  calls and resources  among multiple  client
          applications,  and  allows  applications  to  interoperate  and  to be
          independent of the underlying  hardware.  CT Media middleware provides
          an open  client/server  approach for computer telephony server design.
          With CT Media middleware, systems developers can run multiple vendors'
          applications  such as  telephony  switching,  call center  automation,
          voice  mail,  and  fax  on  demand  on the  same  Windows  NT  server.
          Developers  can  also  add  new  technologies  to the  server  without
          changing existing applications.
     o    CT-Connect Call Control Server Software - CT-Connect software connects
          telephone  switches  to a  variety  of data  processing  environments.
          CT-Connect      client/server     software     technology     supports
          industry-standard  hardware,  operating systems, network services, and
          call control programming  interfaces such as TAPI, TSAPI, ActiveX, and
          DDE.  The  software  runs  under  either  Microsoft  Windows NT or Sun
          Solaris operating system environments and supports  comprehensive call
          control  and  monitoring  through  links  to  many  popular  telephone
          switches.
     o    BoardWatch[TM] - This client/server SNMP software monitors and reports
          on the status of  Dialogic  devices  installed  in a CT  system.  With
          BoardWatch  remote  administration  capabilities,   technical  support
          departments  can directly view the board model,  driver,  and firmware
          versions,  as well as other  important  configuration  and performance
          information about the machines and boards, without assistance from the
          remote  user.  BoardWatch  can  help  reduce  the cost of  owning  and
          maintaining sophisticated systems.
     o    Development Tools -PBXpert[TM]  software helps developers  integrate a
          legacy  PBX  with a voice  processing  system.  DialView[TM]  software
          enables an ISDN PRI link  between two Dialogic  systems so  developers
          can test and develop  ISDN  applications  without  using an  expensive
          protocol  emulator.  Dialogic works with many third parties to provide
          software toolkits which simplify application development. Toolkits are
          available in each of the supported operating systems.

Technologies Supported by Dialogic Products

          Dialogic's   platforms  support  a  variety  of  technologies,   whose
functionality in finished products is largely driven by application software and
middleware  supplied by the Company's customers and other  third-parties.  These
technologies include:

               o    Voice. Voice technology involves processing and manipulating
                    audio  signals  in  a  computer   telephony  system.   Voice
                    technology    functions   include   filtering,    analyzing,
                    recording, digitizing,  compressing,  storing, expanding and
                    replaying  such signals,  as well as receiving,  recognizing
                    and  generating  specific  telephone and network  tones.  In
                    addition,   this  technology   includes   multiparty   voice
                    conferencing.
               o    Network Interfaces. A call coming from the telephone network
                    to a computer  telephony  system can be carried on a variety
                    of lines, from analog loop start to digital, T-1 and E-1 and
                    primary rate  integrated  services  digital  network  (ISDN)
                    lines. These calls can be routed to analog and digital basic
                    rate  interface   (BRI)  station  devices  for  call  center
                    applications. Dialogic manufactures and sells platforms that
                    are  compatible  with  various  popular  network  interfaces
                    utilized  throughout the world. 
               o    Facsimile.  Fax  technology  transmits a copy of paper-based
                    documents  and images over  telephone  lines.  In a PC-based
                    system,   fax  technology  can  also  transmit  and  receive
                    computer-generated  files.  o Automatic  Speech  Recognition
                    ("ASR").  ASR is an algorithm that recognizes  human speech.
                    Speaker-independent  ASR can  recognize  a limited  group of
                    words and numbers from any caller. Speaker-dependent ASR can
                    identify  a large  vocabulary  of  commands  from a specific
                    speaker.
               o    Text-to-Speech  ("TTS").  TTS is an algorithm that generates
                    intelligible,  synthetic speech from text stored in computer
                    files,  designed to provide access to information that would
                    be too  expensive  or  impractical  to  record  using  voice
                    technology.
               o    Switching.  Switching  involves  routing,  transferring  and
                    connecting voice signals between multiple chassis.

Research and Product Development

          The  Company  believes  that the timely  enhancement  of its  existing
products and development of new products is critical to maintain its competitive
position.   The  Company's   ongoing  product   development  goals  include  the
enhancement (in terms of performance and cost  efficiency) of current  products,
the  adaptation  of  third-party  technologies  to  Dialogic's  products and the
development of new product options and features.  Dialogic's product development
teams work closely with customers in an effort to define necessary  improvements
and  enhancements and to analyze  potential new products.  Recent major research
and  development  projects which have been announced  include the development of
the  DM3  Mediastream  Resource  architecture,  major  initiatives  in  internet
telephony and facsimile and the  development  of CT Media  middleware.  Dialogic
also uses United States and offshore contract research and development.

          No  assurance  can be given  that any of the  Company's  research  and
development  projects  will result in market  accepted  products  or  profitable
ventures.  Like any announcement in the computer telephony  industry,  each such
initiative  is  subject  to a variety  of risks,  including  the  length of time
required  for  Dialogic  to bring  products to market,  unanticipated  technical
problems,   patent  barriers,   competitive   responses,   customer  acceptance,
development  or  manufacturing  difficulties,  the  availability  of  regulatory
approvals, and general market conditions. See "--Products" above.

          Dialogic's  research and development  staff included 517 persons as of
December  31,  1998.  For the years  ended  December  31,  1996,  1997 and 1998,
research and development expenses amounted to $40.7 million,  $51.5 million, and
$ 65.4  million  respectively,  representing  19% of revenues in 1996,  19.7% of
revenues in 1997 and 22.3 % of revenues in 1998.

International Business

          Dialogic's   international   market   opportunities   are  defined  in
significant part by the nature of the telephone networks in particular countries
(which  affect  the types of  network  interfaces  that can be  utilized)  and a
variety of regulatory  issues.  Regulatory  issues affect  Dialogic  products in
several  ways.  First,  there are issues that relate to  approvals  for Dialogic
products.  These issues center around the homologation (or approval) process and
service offering  regulations that affect the ability of the Company's customers
to sell their products in particular countries. In certain countries,  approvals
can be granted at the component level. Such approvals are not dependent upon the
particular PC or application  being utilized.  Accordingly,  once such approvals
are obtained,  specific  products can be utilized by customers in the applicable
country without further interaction with regulatory  officials.  Other countries
require  platform or system level approvals.  As of December 31, 1998,  Dialogic
products had received  approvals  or are  contained in systems  approved in more
than 60 countries throughout the world. The Company believes that its success in
obtaining   component,   platform  or  system  level  approvals   constitutes  a
significant  competitive advantage, in that it permits Dialogic's products to be
sold in the applicable  countries  while the products of competitors  which have
not  successfully  completed  the  approval  process  cannot  be sold  in  those
countries.  A second set of issues  indirectly  affect Dialogic by affecting its
customers'  markets.  For example,  the regulatory  environment  for competitive
carriers,  private  networking,  international  call back or voice over internet
services  will directly  affect  customers'  ability to sell their  products and
therefore Dialogic product sales.

<PAGE>

          In 1996, 1997 and 1998,  international  sales (excluding  exports from
North America)  accounted for approximately 20%, 21% and 24%,  respectively,  of
the Company's  revenues.  See Note 9 of the Notes to the Company's  Consolidated
Financial Statements incorporated by reference herein.

          The Company conducts its  international  operations  primarily through
foreign subsidiaries.  Efforts are made to match product capabilities offered in
particular countries with local product needs, networks and infrastructures.  In
addition to sales and sales  support  activities,  Dialogic's  foreign  presence
includes headquarters  operations in Brussels,  Singapore and Tokyo and research
and development activities in the United Kingdom, Israel, and New Zealand.

          International  sales are subject to inherent risks,  including changes
in regulatory and standards  requirements,  exchange rates, economic conditions,
tariffs and other  barriers,  difficulties  in  staffing  and  managing  foreign
subsidiary   operations,   political   instability,   potentially   adverse  tax
consequences  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.
As the  Company  expands  its  international  operations,  exposure to gains and
losses on international  currency  transactions may increase.  Dialogic does not
currently engage in international  currency hedging transactions.  A substantial
percentage (but not all) of the Company's  international  sales have been billed
and collected in U.S. dollars.

Sales, Marketing, Customers and Customer Support

          Dialogic  markets  its  products  primarily  to  VARs,  OEMs,  systems
integrators,  service  providers  and  applications  developers.  In the  United
States,  Dialogic  sells to these  customers  through  its own  sales  force and
distributors,   as  well  as  through  telemarketing  and  advertising  efforts.
Internationally,  the Company  utilizes its own sales force and  selected  sales
representatives  and agents. As of December 31, 1998, the Company had 175 direct
sales  employees.  Increased  reliance  has been placed on  distributors,  sales
representatives  and sales agents in recent  periods.  Such reliance may subject
the Company to the uncertainties that affect the businesses of these independent
third-parties.

          Dialogic's  United  States sales  personnel are based in various field
sales offices,  including  offices in Arizona,  California,  Georgia,  Illinois,
Massachusetts,  New Jersey, Texas and Washington. These offices are staffed with
individuals that have sales and/or customer support  backgrounds.  The Company's
international sales offices include locations in Argentina,  Australia, Belgium,
Brazil,  Canada,  China, France,  Germany,  Hong Kong, India,  Ireland,  Israel,
Italy,  Japan,  Korea,  New Zealand,  Singapore  and the United  Kingdom.  These
international   offices  also  provide   technical   support  to  the  Company's
international  customer  base and,  in certain  instances,  perform  development
activities.

          The Company's marketing  activities include  participation in industry
trade shows and seminars,  advertising  in selected trade  publications,  public

<PAGE>

relations activities with the trade and business press, publication of technical
articles and  distribution of sales literature and product  specifications.  The
Company's Internet website, http://www.dialogic.com,  has become an increasingly
important vehicle for Dialogic's marketing and customer support functions. As of
December 31, 1998, the Company's marketing group consisted of 65 employees.

          The Company sold products to more than 2,800 customers  during 1998. A
total of 65 of  these  customers  represented  approximately  50% of  Dialogic's
revenues, and no customer accounted for 5% or more of revenues in 1998.

          The Company  believes  that  customer  service and support have been a
significant  factor in distinguishing  the Company from other computer telephony
component  manufacturers.  Given the need to blend  signal  computing  component
technology with applications  software, it is important for Dialogic to maintain
close communication with its customers.  This communication  enables Dialogic to
educate  existing and potential  customers with respect to the  functionality of
the Company's  product line and new product  offerings  and enables  Dialogic to
assess and understand the needs of its customers.

          The Company's technical  developments are communicated to customers by
its sales  engineering  group,  its field  applications  engineering  group, its
technical  support  group,  its design group and its  website.  The Company also
furnishes its customers with documentation  that provides  performance and other
data regarding complex systems configurations and alerts customers to the market
opportunities  available through utilization of Dialogic's products. The Company
has begun sponsoring an annual Technology Summit for key customers and partners.
The 1998 event, in Fort Lauderdale, Florida, was attended by over 500 people and
was  cosponsored  by Alcatel,  Compaq,  Ericsson,  IBM,  Microsoft,  SCO and Sun
Microsystems. A similar event for customers in the Pacific Rim was held in Bali,
and a series of smaller events were held throughout Europe.

Competition

          The computer telephony industry is highly competitive.  Moreover,  the
Company believes that competition is likely to intensify in the future. Dialogic
believes that its principal  competitors  are (i) companies  that  specialize in
particular  computer  telephony  functions,  (ii) companies that provide a broad
range of computer  telephony  products and (iii)  companies,  many of which have
substantially  greater  resources than Dialogic,  which have chosen to, or which
may choose to, produce computer telephony components in-house. Within the second
group,  Dialogic's  principal  competitors include Brooktrout  Technology,  Inc.
(which recently purchased  Lucent's Computer  Telephony  Products Division,  the
former  Rhetorex  Corp.),  Bicom,  Inc.,  Aculab  plc,  Pika Corp.  and  Natural
Microsystems, Inc. In the future, the Company may also face competition from new
market entrants,  including those with substantially  greater resources and name
recognition than Dialogic and industry  companies in the third group which elect
to supply not only their own needs but to enter the merchant market.

          New  and  enhanced   products  can  be  expected  from  the  Company's
competitors in the future.  The  competitive  factors in the computer  telephony

<PAGE>

components industry include the time required to produce a market-ready product,
engineering  expertise,  product quality,  reliability and  performance,  price,
brand name  awareness,  customer  support and service and access to distribution
channels.  The Company  believes that it competes or may compete on the basis of
the breadth and quality of its product line,  its customer  service and support,
its technical capabilities, its name recognition and price.

          While  the  Company  believes  that its  commitment  to open  computer
telephony  architectures  positions  Dialogic as a "technology  enabler" for the
computer   telephony   industry,   this  commitment  may  reduce  the  technical
constraints  that otherwise  would limit the entry of additional  competitors to
the  market  and may  commoditize  Dialogic's  market.  The  Company  also faces
commoditization risks from software and subsystem vendors.

     Proprietary Rights

          The Company holds patents  covering  certain aspects of its technology
and has applied for additional patent  protection.  While Dialogic believes that
its technology provides it with certain competitive advantages,  there can be no
assurance  that the Company's  competitors  will not be able to develop  similar
technology.  Dialogic  currently  licenses certain technology from third parties
and  plans  to  continue  to  do so in  the  future  as  warranted  by  business
conditions. This statement regarding future licensing arrangements constitutes a
Forward-Looking  Statement. See "--Risk Factors." There can be no assurance that
in the  future  the  Company  will be able to obtain  licenses  of  intellectual
property  rights owned by third parties or that such licenses can be obtained on
terms  favorable to the Company.  If the Company is unable to obtain licenses of
protected  technology,  it could be prohibited from  manufacturing and marketing
products incorporating that technology. Factors which could affect the Company's
ability to  maintain  such  licensing  arrangements  in the future  include  the
strength  of  third-parties'   patent  protections,   the  willingness  of  such
third-parties to contract with Dialogic,  the availability of competing products
and  technologies,   the  cost  of  creating  alternative  solutions  and  other
competitors' responses.

          Dialogic  has  received  from  time to time,  and may  receive  in the
future, communications from third parties asserting intellectual property rights
relating to certain of the Company's products and technologies. To date, most of
these  claims have been based on  application-oriented  patents that the Company
would not directly infringe. However,  application-oriented  patents may be used
by the holder to restrict the types of markets in which  Dialogic or  Dialogic's
customers are able to compete.  Application-oriented patents may also be used to
induce  customers  and  potential   customers  to  purchase  computer  telephony
components from  competitors of the Company that are affiliated with the holders
of such patents.

          The   Company   has   received   certain   claims   from   holders  of
application-oriented  patents  asserting that Dialogic,  as opposed to customers
using the  Company's  components  to build  applications,  may violate  existing
patent  rights.  There can be no  assurance  that in the future,  other  similar
claims will not be made  against  Dialogic.  Further,  there can be no assurance
that the Company will be able to resolve such claims,  either by convincing  the
claimants that the Company's  technology is non-infringing,  obtaining a license
on terms  favorable to the Company,  redesigning  its products or defending  any

<PAGE>

legal  action  taken  against  it. The costs that may be incurred by Dialogic in
pursuing any such response  could have a material  adverse effect upon Dialogic.
Should the Company or its customers be found to infringe the proprietary  rights
of others,  the  Company  could be required  to pay  substantial  damages to the
infringed  party,  which in turn  could  have a  material  adverse  effect  upon
Dialogic.

          From  time to time,  the  Company  considers  steps  to be taken  with
respect  to  outstanding  patents  prior to any claim  being  made by the patent
holder  against  Dialogic or its customers.  Such steps may include  obtaining a
license or joining or  sponsoring  litigation  to  challenge  the validity of an
outstanding patent. No assurances can be given that the commencement of any such
litigation  will not result in  counterclaims  being made directly or indirectly
against the Company.

          For information  regarding legal  proceedings  involving  Dialogic and
Brooktrout Technology, Inc., see "Legal Proceedings".

     Manufacturing

          The Company utilizes  contract  manufacturing for substantially all of
its manufacturing processes, thereby allowing Dialogic to focus resources on its
product development and customer support efforts. During 1998, Dialogic moved an
increasing  percentage of its manufacturing to a turnkey contract  manufacturer,
Jabil Circuit, Inc. The Company also employs other suppliers.  The activities of
these  suppliers are  coordinated  by Dialogic's  manufacturing  personnel.  The
Company's  internal   manufacturing-related   operations  consist  primarily  of
production of prototypes, test engineering, materials purchasing and inspection,
final product configuration and testing, quality control and service repair.

          At present,  Dialogic does not have a long-term  supply  contract with
any of its  manufacturing  subcontractors,  turnkey  manufacturer  or  component
suppliers.  Certain  key  components  incorporated  in  the  Company's  products
(including the digital signal  processors  used  throughout  Dialogic's  product
lines) are supplied by only one source,  and others are  available  from limited
sources.  To date,  Dialogic  has been able to obtain  supplies of products  and
components in a timely manner, in part because Dialogic's  principal sole source
products  are  acquired  from   well-established   vendors  with   long-standing
relationships with Dialogic.  However,  in the event that any of its sole source
suppliers  or  contract  manufacturers  were  unable or  unwilling  to  perform,
Dialogic's results of operations could be materially  affected until the Company
establishes  alternative  sources.  The Company owns all of the  engineering and
sourcing  documentation  and functional test equipment used in the manufacturing
of its principal  products and believes that it could shift product  assembly to
alternate suppliers or in-house if it experienced difficulties with its contract
manufacturers. This statement regarding the availability of alternate approaches
to contract manufacturing may constitute a Forward Looking Statement.

          The Company could be materially adversely affected by several factors,
including  the  demands  imposed  upon,  and the  sophistication  of,  alternate
suppliers, the lead time available to such suppliers, unanticipated difficulties
in transferring  production and market  acceptance of the products made by means

<PAGE>

of  such  alternate  approaches.   Accordingly,   actual  results  could  differ
materially from the Company's expectations. See "-- Risk Factors."

         Subsequent Events

          On March 2, 1999, the Company and Microsoft Corporation  ("Microsoft")
announced  that  they  have  entered  into  a  strategic  alliance  relating  to
Dialogic's  CT  server  initiative  and  Dialogic's  CT  Media  for  Windows  NT
middleware product.

          Under the terms of a license and development agreement, Microsoft will
become a nonexclusive  licensee of Dialogic's CT Media for Windows NT middleware
product. Dialogic will enter into development activities for Microsoft to create
specific  applications  in the telephony  space which will be owned by Microsoft
and to provide other  support and  development  services.  Under the license and
development agreement, Microsoft's payments to Dialogic over the next four years
are expected to be $20 million for the initial licenses for CT Media for Windows
NT, the development  services and certain  support.  Microsoft and Dialogic have
agreed to work  jointly to assure a single  code base for CT Media in the future
and Dialogic will continue to own CT Media.  Microsoft's  license to CT Media is
subject to certain  contractual  limitations,  and Dialogic will continue to own
and remains free to license CT Media.

          In a separate  transaction,  also occurring  March 2, 1999,  Microsoft
agreed,  for an aggregate  purchase price of $24.2 million,  to acquire  860,681
newly issued shares of Dialogic common stock and a warrant  entitling  Microsoft
to purchase  279,869 shares of Dialogic common stock.  The warrant has a term of
four years and is  exercisable  at a price of $35.19 per share.  Both the issued
shares and the shares  resulting from the exercise of the warrant are subject to
a lockup period beginning on the transaction  date. During the first year of the
lockup period,  Microsoft may sell none of the shares,  and may only sell 50% of
the shares in the second year of the lockup period. Thereafter all shares may be
freely  sold.  On March 2, 1999,  Dialogic  issued  the  shares  and  warrant to
Microsoft.

Risk Factors

          This Annual  Report  contains,  and  Dialogic  may make in the future,
certain  Forward-Looking  Statements.  Such  statements are subject to risks and
uncertainties  that could cause actual results to differ  materially  from those
projected in such Forward-Looking Statements. Risks and uncertainties applicable
to Dialogic include the following:

          Risks  Relating  to  Technological  Developments.  The  market for the
Company's products is characterized by rapid technological advances,  changes in
customer  requirements and frequent new product  introductions and enhancements.
Dialogic's  future  success  will  depend  upon its  ability to (i)  enhance its
current  products,  (ii) achieve the objectives of its DM3 Mediastream  Resource
Architecture, (iii) develop and introduce new products that keep pace with rapid
technological  developments and evolving industry and regulatory standards, (iv)

<PAGE>

respond to changes in customer  requirements and (v) achieve market  acceptance,
including  a  perception  that  the open  switch  model  and CT Media  represent
industry standard platforms to which developers should work. In particular,  the
Company  believes  it must  continue  to respond to  customers'  needs for broad
functionality  and multiple  platform  support.  There can be no assurance  that
Dialogic will be successful in developing  and marketing new products or product
enhancements  on a  timely  basis  or  that  the  Company  will  not  experience
significant delays in the introduction of new products.  In addition,  there can
be no  assurance  that new  products or product  enhancements  developed  by the
Company will achieve market acceptance. An additional technology risk may result
from  companies  in adjacent  fields  integrating  CT  functionality  into their
products,  making it more difficult for the Company to compete, or commoditizing
its products.  Among other risks are system companies taking increasing portions
of manufacture of product in house or DSP or software  manufacturers  increasing
the functionality of their products,  thereby commoditizing Dialogic products or
eliminating the needs for functionality.  Moreover, while the dramatic growth of
the Internet and Internet based technologies may provide new opportunities, they
are disruptive  technologies which may also negatively affect Dialogic customers
and the market for Dialogic technologies.

          Year 2000.  The Year 2000 issue is  primarily  the result of  computer
programs or databases using a two-digit  format,  as opposed to four digits,  to
represent a calendar  year.  Some  computer  systems will be unable to correctly
interpret  dates  beyond the year 1999,  which could  cause a system  failure or
other computer  errors,  leading to a disruption in the operation or accuracy of
such  systems.  The  Company has  undertaken  a  company-wide  study and testing
program to locate and cure any Year 2000  issues in the  products  or systems on
which it relies and in the  products it offers for sale or license.  The Company
believes  its  internal   systems,   including  both  its  financial   operating
(information technology) systems and non-information technology systems are Year
2000 compliant.  The Company's financial operating systems have been upgraded to
a Year 2000  compliant  release  within  the  context  of its  normal  operating
environment.  Such  upgrade was not  accelerated  in  anticipation  of Year 2000
issues.  No material  additional  costs were incurred in upgrading the Company's
internal systems. This phase of the Company's Year 2000 study is completed.  The
Company has been and  anticipates  continuing  to work  jointly  with  strategic
vendors and  business  partners to identify any Year 2000 issues that may impact
the Company.  The Company anticipates that evaluation and corrective actions, if
any, will be on going  throughout  1999. To date the Company has not  identified
any such  problems  requiring  corrective  action that will result in a material
adverse  impact on the  Company.  However,  there can be no  assurance  that the
companies with which the Company does business will achieve Year 2000 compliance
in a timely fashion,  or that such failure to comply by another company will not
have a material adverse effect on the Company. The Company believes the products
it currently  offers for sale or license are all Year 2000  compliant,  and that
the  cost to  remediate  any  previously  sold  product  that is not  Year  2000
compliant will be insignificant.

          The Company has and will incur  internal  staff costs  related to this
aspect of its initiative.  The Company maintains a web site and has responded to
many inquiries from  customers  regarding Year 2000  compliance of its products.
These  costs are not  considered  to have a  material  impact  on the  Company's
operating results and have not been quantified.

          Based on the  assessment  effort to date, the Company does not believe
that the Year 2000 issue will have a material  adverse  effect on its  financial

<PAGE>

condition,   results  of   operations,   or  cash  flows.   This   represents  a
forward-looking  statement under the Private Securities Litigation Reform Act of
1995.  Actual  results could differ  materially  from the  Company's  belief and
expectations  which,  are based on certain  assumptions  and  expectations  that
ultimately may prove to be inaccurate. Potential sources of risk include (a) the
inability  of principal  suppliers to be Year 2000 ready,  which could result in
delays  in  product  deliveries  from  such  suppliers;  (b)  disruption  of the
distribution channel,  including  transportation  vendors; (c) customer problems
which could affect revenue demand;  and (d) undiscovered  issues related to Year
2000  compatibility  which could have a material  adverse impact.  The Company's
Year 2000 assessment is ongoing and the  consideration of contingency plans will
continue to be evaluated as new information  becomes  available.  At this stage,
however,  the Company  has not  developed a  comprehensive  contingency  plan to
address  situations  that may result if any of the third  parties upon which the
Company is  dependent is unable to achieve  Year 2000  compliance.  The need for
such a contingency plan will be evaluated throughout 1999.

          Competition.  The computer telephony  industry is highly  competitive.
Moreover,  the Company  believes that  competition is likely to intensify in the
future. In addition,  as the Company tries to expand its addressable markets, it
directly faces new larger competitors such as telephony equipment  manufacturers
with far greater resources For information  regarding such competition,  see "--
Competition". No assurance can be given that the Company will be able to compete
successfully  in the  future  or that  price  competition  will not  affect  the
Company's consolidated results of operations and financial condition.

          Fluctuations  in Quarterly  Operating  Results.  The  Company's  total
revenues  may vary  significantly  from  quarter to quarter  due to a variety of
factors,  including  the  timing  of  customer  orders,  changes  in  Dialogic's
products,  geographic and customer mix, the  introduction of new products by the
Company  or  its  competitors,   pricing  pressures,   regulatory  developments,
unanticipated  development and/or  manufacturing  difficulties or expenses,  and
worldwide or regional economic  conditions.  The Company typically operates with
relatively  little backlog and substantially all of its revenues in each quarter
ordinarily result from orders received in that quarter. In addition, the Company
often  incurs   significant   development,   sales  and  marketing  expenses  in
anticipation  of future  revenues.  A shortfall in revenues or earnings from the
levels  anticipated by analysts could have an adverse impact on the market price
of Dialogic's Common Stock.

          Uncertainties   Relating  to  Proprietary   Matters.  For  information
regarding  risks  relating  to the  availability  of licenses to the Company and
relating to potential intellectual property and related claims by third parties,
see "-- Proprietary Rights."

          Dependence  on Sales by Third  Parties.  The  Company's  revenues  are
dependent  upon the  ability of its OEM and VAR  customers  to develop  and sell
computer  telephony  systems that  incorporate  Dialogic's  modular  components.
Factors, including worldwide economic conditions,  patent positions,  regulatory
requirements  and  other  marketing  restrictions,  that  adversely  affect  the
revenues of Dialogic's OEM and VAR customers can have an adverse impact upon the
Company's  financial results. No assurances can be given that Dialogic's OEM and

<PAGE>

VAR customers  will not  experience  financial or other  difficulties  that will
materially and adversely  affect their purchases from Dialogic and, in turn, the
results of operations and financial condition of the Company.

          Risks   Associated  with   International   Operations.   International
operations  are subject to certain  risks,  including  changes in regulatory and
standards  requirements,  exchange  rates,  worldwide and regional  economic and
political conditions,  tariffs and other barriers,  difficulties in staffing and
managing foreign subsidiary operations, potentially adverse tax consequences 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.  A substantial
percentage (but not all) of the Company's  international  sales have been billed
and  collected  in  U.S.  dollars.  As  the  Company  continues  to  expand  its
international  operations,  exposures  to  gains  and  losses  on  international
currency  transactions  may  increase.  Dialogic  does not  currently  engage in
international  currency hedging  transactions.  The Company is unable to predict
with accuracy the impact on Dialogic of recent Asian economic problems.

          Dependence on  Third-Party  Suppliers.  The Company  contracts a large
percentage of its manufacturing to a turnkey  manufacturer,  Jabil Circuit, Inc.
Dialogic  also  employs  other  domestic  manufacturing  subcontractors  in  the
manufacture of its remaining production.  Certain key components incorporated in
the Company's  products  (including the DSPs used throughout  Dialogic's product
lines) are supplied by only one source,  and others are  available  from limited
sources.  The  Company  does not have a  long-term  agreement  with any of these
suppliers  of services or  components.  The Company is currently  negotiating  a
written  agreement  with  Jabil  Circuit,  Inc.  Although  the  Company  has not
experienced  any material  difficulties  in obtaining  supplies in the past, any
reduction or interruption  in supply from these  third-party  contractors  could
materially  and  adversely  affect   Dialogic's   results  of  operations  until
alternative  sources  are  established.  Moreover,  operating  results  could be
materially  and  adversely  affected by the receipt of defective  components  or
products,  an increase in prices from  suppliers or the inability of Dialogic to
obtain lower prices in response to competitive price reductions.

          Uncertainties  Regarding  Regulatory  Matters.  Applications  that are
enabled by  Dialogic's  products  are  affected by  governmental  policy in each
country in which they may be deployed around the world.  Modifications to public
policy,  including,  but not limited to,  regulation  of use of the Internet and
restrictions  on  alternative  forms  of  call  completion,  may  positively  or
adversely affect  Dialogic's  business.  The Company seeks to obtain  regulatory
approvals  for its products as a means of enabling its  customers to bring their
systems  to  market  as  rapidly  as  possible.  Changes  in  regulations  or in
interpretations  of  regulations  or delays in  deregulation  may  substantially
hamper end-users and Dialogic's  customers and may cause such customers to delay
or cancel orders.

          Dependence on Key Personnel.  The Company depends substantially on key
personnel involved in engineering,  research and development,  marketing, sales,
finance  and  administration.  The loss of the  services  of key  persons in any
functional  area could  have a material  adverse  effect on  Dialogic's  current
operations and on new product  development  efforts.  Dialogic's success depends
upon its  ability to attract and retain  skilled  employees.  Its  success  also
depends  upon the ability of  Dialogic's  officers  and key  employees to manage

<PAGE>

growth   successfully  and  to  continue   successful   development  of  product
enhancements  and new products.  There can be no assurance that the Company will
be able to hire or retain  sufficient  qualified  staff to meet its  goals.  The
Company does not maintain key-person life insurance for any of its personnel.

          Risks Associated with Potential  Acquisitions.  The Company's business
strategy  contemplates  that Dialogic  will  continue to seek to complement  its
internal growth with additional acquisitions of and investments in businesses in
the computer telephony industry and related fields.  Although management expects
to  carefully  analyze any such  opportunity  before  committing  the  Company's
resources,  there can be no  assurance  that such  transactions  will  result in
long-term benefits to Dialogic or that  unanticipated  liabilities may not arise
with respect to acquired entities.

          Excess or Obsolete  Inventory.  Dialogic's  customers typically expect
delivery of the Company's hardware and software products from stock. Because the
manufacturing  lead-time for several of Dialogic's  products can be significant,
the Company builds its products to meet forecasted demand. Although a portion of
customer  demand  is  ascertainable  from  volume  purchase  arrangements,   the
Company's forecasts also depend upon management's estimates of sales to existing
and  potential  customers.  Several  factors  could  affect the accuracy of such
estimates,  including unanticipated changes in customer demand, new developments
in  the  computer  telephony  industry,  unanticipated  development  delays  and
competitive inroads into the Company's business. Should management's predictions
prove to be inaccurate, the Company could have excess or obsolete inventory.

          Volatility of Stock Price. The market price of Dialogic's Common Stock
has fluctuated  significantly  since its initial public  offering in April 1994.
Factors such as:  announcements of technological  innovations or new products by
Dialogic,  its  competitors  or other third parties;  consolidations  within the
computer telephone industry;  quarterly variations in the Company's consolidated
results of operations,  shortfalls in the Company's  revenues,  gross margins or
earnings relative to analysts'  expectations;  regulatory conditions;  worldwide
economic conditions;  capital market conditions; and general industry conditions
may all affect the market  price of the Common  Stock and cause it to  fluctuate
significantly.  In addition,  in recent years,  the stock market in general,  as
well as the market  prices of the stocks of many high  technology  companies  in
particular,  have experienced wide fluctuations  which have not necessarily been
related to the operating  performance of individual  companies.  There can be no
assurance that the market price of the Company's  Common Stock will not continue
to experience significant volatility.

<PAGE>

Backlog

          Because the Company's  products are typically shipped within one month
of receipt of the order, the Company does not believe that its backlog as of any
particular date is indicative of future sales levels.

Employees

          As of December 31, 1998,  the Company had 1,247  full-time  employees.
The Company's  continued success will depend in part upon its ability to attract
and retain  skilled  employees.  Dialogic  has never had a work  stoppage and no
employees are  represented by a labor  organization.  The Company  considers its
employee relations to be good.

Environmental Factors

          Federal,  state and local laws or regulations  which have been enacted
or adopted  regulating the discharge of materials into the environment  have not
had, and under  present  conditions  the Company does not foresee that they will
have,  a material  adverse  effect on  capital  expenditures,  earnings,  or the
competitive position of the Company.

Item 2.  Properties

          The Company's  corporate  headquarters are located in Parsippany,  New
Jersey, in two leased facilities which cover  approximately  262,000 square feet
of space.  There are two separate leases for the  facilities.  The primary lease
covers  220,000  square feet and expires in 2005,  with options to renew for two
subsequent  five-year  terms.  The first  lease was  amended to provide  for the
construction  of a 67,000  square foot  addition to the existing  building.  The
construction of this addition is scheduled to be completed by December 1999. The
second  lease  covers  19,000  square feet and expires in 2002,  with options to
renew for two subsequent three-year terms. The second lease was amended to cover
an additional  23,000 square feet. The amendment  covering this additional space
expires in 2005 with an option to renew for one subsequent  three-year term. The
Company also leases all of its domestic and foreign  offices.  See Note 8 of the
Notes  to  the  Company's  Consolidated  Financial  Statements  incorporated  by
reference herein.


Item 3.  Legal Proceedings 

          In June 1995,  the Company  entered into a settlement  agreement  that
resulted in the dismissal of various legal proceedings involving,  among others,
the Company and Brooktrout Technology,  Inc.  ("Brooktrout").  In November 1995,
Brooktrout  filed a  complaint  in the  United  States  District  Court  for the
District of Massachusetts  naming the Company,  its GammaLink  subsidiary (since
merged  into the  Company)  and its  Chairman  of the Board as  defendants.  The
complaint  sought to rescind the  settlement  agreement  and obtain  unspecified

<PAGE>

compensatory  and  punitive  damages  on  the  basis  of  allegations  that  the
defendants   fraudulently  induced  Brooktrout  to  enter  into  the  settlement
agreement.  Dialogic denied the claims as baseless, moved to dismiss and filed a
counterclaim.  In December  1996, the District Court entered an order of summary
judgment against Brooktrout dismissing its fraud claims. Subsequently Brooktrout
amended  its  complaint  to add a claim for breach of the  implied  duty of good
faith and fair dealing. On February 9, 1999, the parties reached a settlement in
this  litigation in which  Brooktrout  dismissed all  remaining  claims  against
Dialogic and its chairman with prejudice,  Brooktrout granted certain additional
patent  rights to Dialogic,  and Dialogic  dismissed  its  counterclaim  against
Brooktrout with prejudice. Neither Dialogic nor its chairman made any payment to
Brooktrout in this matter.

          Separately,  the Company's Spectron subsidiary had sued Brooktrout for
patent infringement. This case was transferred to the District of Massachusetts.
Dialogic  believes it has retained the rights to maintain  this lawsuit  despite
the February 1998 sale of the Spectron  assets.  Brooktrout has moved to dismiss
this case  claiming that Dialogic no longer has standing to enforce the patents.
Trial in this case is now scheduled for June 1999.

          During the third  quarter of 1996, a complaint was filed in New Jersey
Superior  Court against the Company and certain of its  directors  alleging that
the  defendants  breached  principles  of common  law fraud in  connection  with
certain  public  statements  made prior to the  Company's  July 8,  1996,  press
release announcing  preliminary results for the quarter ended June 30, 1996. The
complaint  sought monetary  damages on behalf of a purported class of purchasers
of  the  Company's  Common  Stock.  On  February  18,  1998,  on  motion  by the
defendants,  the complaint was  dismissed by the court with  prejudice.  Time to
appeal the dismissal has expired.

          The Company is also engaged in other legal proceedings  arising in the
ordinary course of business,  the results of which  proceedings are not expected
to have a  material  adverse  effect  on the  Company's  consolidated  financial
condition, results of operations or liquidity. Management intends to defend each
of the above-mentioned legal proceedings vigorously.


<PAGE>

Item 4.  Submission of Matters to a Vote of Security Holders

     Not applicable.


Item 4A.  Executive Officers of the Registrant

          The Company's executive officers, their respective ages (as of January
31, 1999) and their positions with the Company are set forth below:


          Name                      Age            Title

      Nicholas Zwick                46       Chairman of the Board

      Howard G. Bubb                44       President and Chief Executive 
                                             Officer; Director

      John G. Alfieri               39       President, the Americas

      Thomas G. Amato               53       Vice President, Chief Financial 
                                             Officer and Treasurer

      Kenneth J. Burkhardt, Jr.     53       Executive Vice President, New 
                                             Business Development; Director

      William Warner                54       Executive Vice President, Signal 
                                             Computing Products

      Charles House                 58       Executive Vice President, Core-
                                             Systems Development

      Steve Krupinski               45       Vice President, Human Resources

      John E. Landau                45       Vice President, Product Marketing

      Gary Marks                    41       Vice President, Corporate Marketing

      Theodore M. Weitz             52       Vice President, General Counsel and
                                             Secretary

      Jean M. Beadle                48       Chief Accounting Officer and 
                                             Controller

          Mr.  Zwick,  a co-founder  of the Company,  has been a Director of the
Company since  Dialogic's  inception in 1983, its President and Chief  Executive
Officer from 1985 to May 1993 and its Chairman of the Board since March 1993.

          Mr. Bubb joined the Company as an  Executive  Vice  President  in July
1991. In August 1992, Mr. Bubb was promoted to Chief Operating Officer.  In June
1993, he was promoted again to President and Chief Executive  Officer.  Prior to
joining the Company,  Mr. Bubb was a consultant  from February 1991 to July 1991
and Senior Vice  President  and General  Manager of Lexar  Business  Systems,  a
marketer of PBX products and an affiliate of Telenova,  Inc., from December 1989
to January 1991. He served as Vice President of the telecommunications  business
of Memorex Telex, N.V. from January 1986 to December 1989. Mr. Bubb is currently
on the Board of Directors of Pairgain Technologies, Inc.

          Mr.  Alfieri was named  President,  The Americas in June 1998.  He has
been employed by the Company since 1988, first as the Eastern Regional  Manager,
then (in  1990)  as  Manager  of  North  American  Sales  and (in  1993) as Vice
President,  Sales and Services,  the Americas.  Prior to joining  Dialogic,  Mr.
Alfieri held various sales and marketing positions within IBM from 1983 to 1988.

          Mr. Amato was hired by Dialogic as its Vice President, Chief Financial
Officer and Treasurer in April of 1997. Prior to joining Dialogic,  he served as
Senior Vice President and Chief Financial Officer of Symbol Technologies,  Inc.,
from 1990 to 1997. From 1979 to 1990 he served as Senior Vice President, Finance
and Administration of Amcast Industrial Corporation.  From 1971-1979,  Mr. Amato
held various financial positions with Rockwell International Corporation.

          Dr.  Burkhardt,  a co-founder of the Company,  served as the Executive
Vice  President of  Operations  of the Company  through  October  1992,  when he
assumed his  current  position  as  Executive  Vice  President  of New  Business
Development. He has been a Director of the Company since 1983.

          Mr. Warner was hired by Dialogic as Executive Vice  President,  Signal
Computing Products,  in September of 1998. Prior to joining Dialogic,  he served
as Senior Vice President, Product Management and Development, at Banyan Systems,
Inc. from 1997 until 1998.  From 1996 to 1997, Mr. Warner was Vice President and
General Manager,  Platform Software Business,  at SystemSoft  Corporation.  From
1969 to 1996,  Mr. Warner held various  positions at IBM Corp.,  including  Vice
President, Systems Management.

          Mr.  House  was  named   Executive  Vice  President  of  Core  Systems
Development in February 1998. He has been employed by the Company since December
of 1995 as Vice President and General  Manager for Spectron  Microsystems,  Inc.
Prior to  joining  Dialogic,  he served as Senior  Vice  President  and  General
Manager of Veritas  Software  from 1993 to 1995 and Senior  Vice  President  for
Product  Management and Development at Informix Software from 1991 to 1993. From
1962 to 1991,  Mr. House held various  management  positions at  Hewlett-Packard
including General Manager at both the Software  Engineering Systems Division and
Logic  Systems  Operation.  Mr.  House is currently on the Board of Directors of
Applied Microsystems, Incorporated.

          Mr.  Krupinski was named Vice  President,  Human  Resources in January
1998. Prior to joining  Dialogic,  he served as Vice President,  Human Resources
for Dun & Bradstreet  from 1992 to 1998.  From 1988 to 1992,  Mr.  Krupinski was
Assistant Vice President,  Human Resources for Crum & Forster Personal Insurance
Co. Between 1979 to 1988, Mr. Krupinski held various Human Resources  management
positions with Engelhard Corporation, AT&T Corp. and Allstate Insurance Company.

          Mr.  Landau was named Vice  President,  Product  Marketing in February
1999. He was previously Vice President,  Strategic Marketing of the Company from
1997 until 1999, Vice President and General Manager, Dialogic Architecture Labs,
from 1995 until 1997 and Vice President,  Marketing of the Company from February
1993 until 1995. Mr. Landau was an area sales manager for Dialogic from May 1988
until  February  1989.  From  February  1989 to  1990,  he was the  Director  of
Marketing at Benchmarq Microelectronics ( a semiconductor manufacturer) and from
1990 until he rejoined Dialogic in February 1993, Mr. Landau was Vice President,
Marketing at Benchmarq  Microelectronics.  From November 1983 until May 1988, he
held various  marketing  positions at Advanced  Micro  Devices (a  semiconductor
manufacturer) and from June 1978 until November 1983, he held various operations
and product marketing  responsibilities  at Mostek  Corporation (a semiconductor
manufacturer).

          Mr. Marks joined Dialogic in August 1998 as Vice President,  Corporate
Marketing.  Prior to joining Dialogic,  he served as Executive Vice President of

<PAGE>

Marketing for SyQuest  Technologies,  Inc. from 1996 to 1998. From 1994 to 1996,
Mr. Marks was Vice President of Marketing for Conner  Peripherals.  From 1987 to
1994, Mr. Marks was Vice President of Marketing at Western Digital Corp.

          Mr. Weitz  joined the Company in January  1997 as its General  Counsel
and was named a Vice President and Secretary in February 1997.  Prior to joining
the Company,  he served in senior counsel positions for Lucent Technologies Inc.
in 1996,  for AT&T from 1993 to 1996, for UNIX System  Laboratories  and Novell,
Inc. from 1991 to 1993 and for various AT&T affiliates from 1978 to 1991.

          Ms.  Beadle  joined  Dialogic in March of 1997 as  Controller  and was
named  Chief  Accounting  Officer in  February  of 1998.  Prior to  joining  the
Company,  she was employed at Dynatech  Corporation  as Director of Finance from
1995 to 1997,  as  Director of  Taxation  from 1990 to 1995 and as an  Assistant
Corporate  Controller  from 1985 to 1990.  From 1972 to 1985,  Ms.  Beadle  held
various financial  positions at General Electric  Corporation and Metcalf & Eddy
Engineering, Inc.

          Executive  officers  of the  Company  are  appointed  by the  Board of
Directors  on an annual  basis and serve until their  successors  have been duly
elected  and  qualified.  There  are no  family  relationships  among any of the
executive officers or directors of the Company.

<PAGE>

                                     PART II

Item 5.   Market for the  Registrant's  Common  Equity and  Related  Stockholder
          Matters

          The registrant  incorporates by reference herein information set forth
in its Annual Report to Shareholders  for the year ended December 31, 1998, that
is responsive to the information required with respect to this Item.

Item 6.   Selected Financial Data

          The registrant  incorporates by reference herein information set forth
in its Annual Report to Shareholders  for the year ended December 31, 1998, that
is responsive to the information required with respect to this Item.

Item 7.   Management's Discussion and Analysis of Dialogic's Financial Condition
          and Results of Operations

          The registrant  incorporates by reference herein information set forth
in its Annual Report to Shareholders  for the year ended December 31, 1998, that
is responsive to the information required with respect to this Item.

Item 7A.  Quantitative and Qualitative Disclosure About Market Risk.

          The Company  was not a party to any  agreements  involving  derivative
financial  instruments at December 31, 1998.  The Company's  primary market risk
exposures are in the areas of interest rate risk and foreign  currency  exchange
rate risk. The Company's  investment portfolio of cash equivalents is subject to
interest rate fluctuations, but the Company believes this risk is immaterial due
to  the  short-term  nature  of  these  investments.  The  Company's  investment
portfolio of marketable  debt  securities  is comprised  primarily of fixed rate
municipal  bonds.  The  Company  has  classified  all  of  these  securities  as
available-for-sale,  which reduces  income  statement  exposure to interest rate
risk. The Company  mitigates  risk in its  investment  portfolios by placing its
investments  with  high-quality  issuers  it  believes  are credit  worthy.  The
Company's   exposure  to  foreign  currency   exchange  rate   fluctuations  has
historically been modest.  The majority of the Company's revenue and receivables
are  denominated  in US  dollars.  Based on the  foreign  currency  exposure  of
nonfunctional  currency  denominated  receivables  and  payables at December 31,
1998, a 10% adverse  change in currency  rates would not  materially  affect the
Company's  financial  position,  results of  operations,  or cash flows.  As the
Company  continues  to  expand  its  presence  internationally,  there can be no
assurance that foreign currency exposures will remain insignificant.

Item 8.   Financial Statements and Supplementary Data

          The registrant  incorporates by reference herein information set forth
in its Annual Report to Shareholders  for the year ended December 31, 1998, that
is responsive to the information required with respect to this Item.

Item  9.  Changes  in and  Disagreements  with  Accountants  on  Accounting  and
          Financial Disclosure

          Not applicable.

<PAGE>

                                    PART III

Item 10.  Directors of the Registrant

          The registrant  incorporates by reference herein information set forth
in its definitive  proxy  statement for its 1999 annual meeting of  shareholders
that is responsive to the information required with respect to this Item.

Item 11.  Executive Compensation

          The registrant  incorporates by reference herein information set forth
in its definitive  proxy  statement for its 1999 annual meeting of  shareholders
that is responsive to the information required with respect to this Item.

Item 12.  Security Ownership of Certain Beneficial Owners and Management

          The registrant  incorporates by reference herein information set forth
in its definitive  proxy  statement for its 1999 annual meeting of  shareholders
that is responsive to the information required with respect to this Item.

Item 13.  Certain Relationships and Related Transactions

          The registrant  incorporates by reference herein information set forth
in its definitive  proxy  statement for its 1999 annual meeting of  shareholders
that is responsive to the information required with respect to this Item.

<PAGE>

                                     PART IV

Item 14.  Exhibits, Financial Statement Schedules and Reports on Form 8-K

          (a)  The  following  financial   statements  and  related  report  are
incorporated  by reference  into Item 8 of this Annual Report on Form 10-K (page
references are to the Company's Annual Report to Shareholders for the year ended
December 31, 1998):

                                                                           Page

      Independent Auditors' Report......................................... 10
      Consolidated Balance Sheets as of December 31, 1997 and
          1998..............................................................11
      Consolidated Statements of Income for the Years Ended
          December 31, 1996, 1997 and 1998..................................12
      Consolidated Statements of Comprehensive Income for the
          Years Ended December 31, 1996, 1997 and 1998                      12
      Consolidated Statements of Shareholders' Equity
          for the Years Ended December 31, 1996, 1997 and 1998..............13
      Consolidated Statements of Cash Flows for the Years Ended
          December 31, 1996, 1997 and 1998..................................14
      Notes to Consolidated Financial Statements............................15

          (b) The  following  financial  statement  schedule is filed as part of
this Annual Report:

          Schedule              Description                            Page

             I         Independent Auditors' Report                     S-1

            II         Valuation and Qualifying Accounts                S-2

          All other  schedules have been omitted because they are not applicable
or the required  information  is included in the  financial  statements or notes
thereto.

          (c) The following  exhibits are  incorporated  by reference  herein or
annexed to this Annual Report:

             Exhibit                        Description

                3.1     Restated Certificate of Incorporation is incorporated by
                        reference   to   Exhibit   3.1   to   the   Registrant's
                        Registration Statement on Form S-1 (No. 33-59598).

                3.2     By-laws,  as amended,  are  incorporated by reference to
                        Exhibit 3.2 to the Registrant's  Registration  Statement
                        on Form S-1 (No. 33-59598).
<PAGE>

                10.1    1988  Incentive   Compensation   Plan,  as  amended  and
                        restated  through  March 28,  1997 (the "1988  Plan") is
                        incorporated   by  reference  to  Exhibit  10.2  of  the
                        Registrant's  Annual  Report  on Form  10-K for the year
                        ended December 31, 1996.

                10.2    Proposed  amendments  to the 1988  Plan as  amended  are
                        incorporated   by  reference  to  Exhibit  10.3  of  the
                        Registrant's  Annual  Report  on Form  10-K for the year
                        ended December 31, 1996.

                10.3    1993 Non-Employee  Director Stock Option Plan (the "1993
                        Plan") is  incorporated  by reference to Exhibit 10.4 of
                        the Registrant's Registration Statement on Form S-1 (No.
                        33-59598).

                10.4    Amended  and  Restated  1993  Plan  is  incorporated  by
                        reference  to Exhibit  10.5 of the  Registrant's  Annual
                        Report  on Form  10-K for the year  ended  December  31,
                        1996.

                10.5    1997   Director   Stock    Election/Deferral   Plan   is
                        incorporated   by  reference  to  Exhibit  10.6  of  the
                        Registrant's  Annual  Report  on Form  10-K for the year
                        ended December 31, 1996.

                10.6    Employment  Agreement  between the Registrant and Howard
                        G. Bubb,  as amended is  incorporated  by  reference  to
                        Exhibit 10.6 of the  Registrant's  Annual Report on Form
                        10-K for the year ended December 31, 1997.

                10.7    Registrant's loan agreements, as amended is incorporated
                        by reference to Exhibit 10.7 of the Registrant's  Annual
                        Report on Form 10-K for the year ended December 31, 1997

                10.8    Registrant's  headquarters lease, dated August 31, 1993,
                        as amended, is incorporated by reference to Exhibit 10.9
                        to the  Registrant's  Annual Report on Form 10-K for the
                        year ended December 31, 1996.

                10.9    Sixth  Amendment to headquarters lease November 21, 1997
                        is incorporated by reference  to  Exhibit  10.9  to  the
                        Registrant's  Annual  Report  on Form  10-K for the year
                        ended December 31, 1997.

<PAGE>

                10.10   Seventh  Amendment  to  headquarters  lease  dated as of
                        September 30, 1998

                10.11   Lease  dated as of  September  30, 1998 for the annex to
                        the headquarters

                10.12   Amended  and  Restated  1997  Incentive   Benefit  Plan,
                        amended and restated through February 22, 1999.

                10.13   Asset Purchase  Agreement,  by and among the Registrant,
                        Texas    Instruments     Incorporated    and    Spectron
                        Microsystems, Incorporated, dated as of January 22, 1998
                        is  incorporated  by reference  to Exhibit  10.11 of the
                        Registrant's  Annual  Report  on Form  10-K for the year
                        ended December 31, 1997.

                10.14   Stock  Purchase  Agreement  dated as of  March  1,  1999
                        between the Registrant and Microsoft Corporation.

                11.1    Calculation of Income Per Share.

                13.1    Incorporated   portions   of  the   Annual   Report   to
                        Shareholders for the year ended December 31, 1998.

                21.1    Principal subsidiaries of the Registrant.

                23.1    Independent Auditors' Consent.

                24.1    Power of Attorney.

                27.1    Financial Data Schedule.


          (d) During the quarter  ended  December 31, 1998,  the Company did not
file any Current Reports on Form 8-K.

<PAGE>

                                   SIGNATURES

          Pursuant to the  requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on
its  behalf by the  undersigned,  thereunto  duly  authorized,  this 26th day of
March, 1999.

                                  DIALOGIC CORPORATION
                                   By: /s/ Thomas G. Amato



                                   ___________________________
                                   Thomas G. Amato, Vice President,
                                   Chief Financial Officer and Treasurer

          Pursuant to the  requirements of the Securities  Exchange Act of 1934,
this  report has been  signed  below by the  following  persons on behalf of the
registrant and in the capacities and on the dates indicated.


      Signatures                      Title                          Date

/s/Howard G. Bubb*             President,  Chief  Executive      March 26, 1999
   Howard G. Bubb              Officer and Director

/s/Nicholas Zwick*             Director                          March 26, 1999
   Nicholas Zwick

/s/Kenneth J. Burkhardt, Jr.*  Director                          March 26, 1999
   Kenneth J. Burkhardt, Jr.

/s/ Thomas G. Amato            Vice President,  Chief            March 26, 1999
    Thomas G. Amato            Financial Officer and 
                               Treasurer

/s/ Jean M. Beadle             Chief Accounting Officer 
    Jean M. Beadle             and Controller                    March 26, 1999

/s/Masao Konomi*               Director                          March 26, 1999
   Masao Konomi

/s/John N. Lemasters*          Director                          March 26, 1999
   John N. Lemasters

/s/Francis G. Rodgers*         Director                          March 26, 1999
   Francis G. Rodgers

/s/James J. Shinn*             Director                          March 26, 1999
   James J. Shinn


* By    /s/Theodore M. Weitz*
        ______________________
           Theodore M. Weitz Attorney in Fact

<PAGE>

                                       S-1
INDEPENDENT AUDITORS' REPORT


To the Board of Directors and Shareholders
of Dialogic Corporation
Parsippany, New Jersey

We have audited the consolidated  financial  statements of Dialogic  Corporation
and  Subsidiaries  as of December  31, 1998 and 1997,  and for each of the three
years in the period ended  December 31, 1998, and have issued our report thereon
dated  January 27,  1999  (except for Note 10, as to which this date is March 2,
1999);  such  financial  statements  and report are included in your 1998 Annual
Report to Shareholders and are incorporated herein by reference. Our audits also
included the financial  statement  schedule of Dialogic  Corporation,  listed in
Item  14.  This  financial  statement  schedule  is  the  responsibility  of the
Company's  management.  Our responsibility is to express an opinion based on our
audits. In our opinion,  such financial statement  schedule,  when considered in
relation to the basic financial statements taken as a whole,  presents fairly in
all material respects the information set forth therein.

/s/ Deloitte & Touche LLP

DELOITTE & TOUCHE LLP
Parsippany, New Jersey
March 2 , 1999

<PAGE>
<TABLE>
                                      S-2

                 SCHEDULE II - Valuation and Qualifying Accounts
                             (Dollars in thousands)

<CAPTION>


                   Column A                        Column B         Column C                            Column D          Column E
- ----------------------------------------------- --------------- ------------------ ---------------- ----------------- --------------
<S>              <C>                              <C>              <C>               <C>               <C>              <C>       
                                                  Balance at       Charged to        Charged to
                                                  beginning         costs and           other                            Balance at
                 Description                       of year          expenses          accounts         Deductions(1)     end of year

       Allowance for Doubtful Accounts

December 31, 1996                                       894            724                57               846                829
December 31, 1997                                       829          1,272               (27)              794              1,280
December 31, 1998                                     1,280          1,483                 1               893              1,871

(1)  Amounts represent write-offs of accounts receivable deemed uncollectible.

</TABLE>

<PAGE>

                                  EXHIBIT INDEX


 EXHIBIT                              DESCRIPTION

  10.10                       Seventh Amendment to  headquarters   lease  dated
                              September 30, 1998.

  10.11                       Lease dated  September  30, 1998 with respect to 
                              the annex to the headquarters

  10.13                       Amended and Restated 1997 Incentive  Benefit Plan
                              amended and restated through February 22, 1999.

  10.14                       Stock Purchase Agreement dated as of March 1, 1999
                              between the Registrant and Microsoft Corporation.

  11.1                        Calculation of Income Per Share

  13.1                        Incorporated portions  of  the  Annual  Report  to
                              Shareholders for the Year ended December 31, 1998

  21.1                        Subsidiaries of the Registrant

  23.1                        Independent Auditors' Consent

  24.1                        Power of Attorney

  27.1                        Financial Data Schedule



                                 EXHIBIT 10.10

                      SEVENTH AMENDMENT TO LEASE AGREEMENT

          THIS SEVENTH  AMENDMENT TO LEASE AGREEMENT (this "Seventh  Amendment")
made as of the 30th day of  September,  1998,  by and  between  THE MUTUAL  LIFE
INSURANCE COMPANY OF NEW YORK, having an address at 1740 Broadway, New York, New
York 10019 (the "Landlord") and DIALOGIC CORPORATION,  a New Jersey corporation,
with offices and a principal place of business at 1515 Route 10, Parsippany, New
Jersey 07054 (the "Tenant").

                              W I T N E S S E T H:

          WHEREAS,  pursuant to that certain Lease dated August,  1993,  between
Landlord and Tenant,  as amended by (i) that certain  Second  Amendment to Lease
Agreement  dated  January 20, 1994 (a proposed  first  amendment was not entered
into), (ii) that certain Third Amendment to Lease Agreement dated July 19, 1994,
(iii) that certain Fourth  Amendment to Lease Agreement dated December 20, 1994,
(iv) that certain Fifth  Amendment to Lease Agreement dated May 6, 1996, and (v)
that certain Sixth  Amendment to Lease  Agreement  dated November 21, 1997 (such
lease, as amended, being referred to herein as the "Lease"),  Tenant leased from
Landlord all of the premises  (the  "Premises")  within the building  located at
1515 Route 10, Parsippany, New Jersey (the "Building");

          WHEREAS, the term of the Lease expires on June 14, 2005;

          WHEREAS,  Landlord and Tenant are entering into a Lease dated the date
hereof (the "New Lease")  pursuant to which Landlord will demise to Tenant,  and
Tenant  will  lease  from  Landlord,   certain  premises  (the  "New  Premises")
consisting of the entire  building to be  constructed  next to the Building (the
"New Building");

          WHEREAS,  the term of the New Lease  expires at 12:00 Noon on the last
day of the month in which the 10th anniversary of the  commencement  date of the
New Lease occurs (the "New Lease Expiration Date");

          WHEREAS, Landlord and Tenant desire to extend the term of the Lease to
be coterminous with the New Lease, and to amend other provisions of the Lease in
the manner and to the extent hereinafter set forth; and

          WHEREAS,  capitalized  terms  used  herein but not  otherwise  defined
herein shall have the meaning given to them in the Lease.

          NOW,  THEREFORE,  in consideration  of the mutual covenants  contained
herein and other good and valuable  consideration the receipt and sufficiency of
which are hereby acknowledged, the parties hereto do hereby agree that the Lease
is hereby amended as follows:

          1.  Notwithstanding  the provisions of Section 2.2 of the Lease,  from
and after the date hereof, the term "Expiration Date" as used in the Lease shall
mean the date the initial term of the New Lease expires  pursuant to Section 2.2
thereof,  which date is the last day of the month in which the 10th  anniversary
of the  Commencement  Date (as such term is defined in the New Lease) of the New
Lease.

          2. (a)  Commencing  on June  15,  2005,  and  continuing  through  the
Expiration Date (as hereinabove amended), the Fixed Rent payable under the Lease
with respect to the Premises shall be $20.13 per rentable  square foot per annum
for the portions of the Premises  located on the first  through  third floors of
the  Building,  and $4.00 per  square  foot per  annum for the  portions  of the
Premises located within the basement of the Building.

          (b) All  Rent  payable  hereunder  shall  be  governed  by and paid in
accordance  with the  provisions  of Section 3 of the Lease  (excluding  Section
3.2).

          3.  Section  2.5 of the Lease is hereby  deleted in its  entirety  and
replaced with the following:

                  "2.5  Tenant  shall have two (2) options to renew the Term for
                  the Premises, each for a period of five (5) years. Each option
                  shall be  properly  exercised  by  Tenant  only if (a)  Tenant
                  delivers  written  notice of such  exercise  prior to the date
                  which is one year prior to the Expiration Date (as same may be
                  extended by the first option),  time being of the essence with
                  respect  to  such  exercise,  or  (b) as of  the  date  Tenant
                  exercises the option and on the date immediately  prior to the
                  option  term,  this  Lease  shall  not  have  been  previously
                  terminated  or  cancelled  nor shall any  breach or default by
                  Tenant  of  any  of  its  obligations   under  this  Lease  be
                  continuing.  The  Fixed  Rent to be paid  during  each  option
                  period shall be determined in accordance with Section 4 of the
                  Seventh Amendment.

          4. The Fixed Rent to be paid for the first option  period  referred to
in  Paragraph  3 shall be  $23.15  per  rentable  square  foot per annum for the
portions  of the  Premises  located  on the first  through  third  floors of the
Building,  and $4.60 per square foot per annum for the  portions of the Premises
located  within  the  basement  of the  Building.  The Fixed Rent for the second
option period  referred to in Section 2.5 shall be the greater of (i) $23.15 per
rentable  square foot per annum for the portions of the Premises  located on the
first through third floors of the Building,  and $4.60 per square foot per annum
for the portions of the Premises  located  within the basement of the  Building,
and (ii) 95% of the fair market rent,  as  determined in the same manner as such
fair market rent is determined pursuant to Section 3.1(c) of the New Lease.

          5.  Sections  8.1 and 8.2 of the Lease  are  hereby  deleted  in their
entirety and the following is substituted therefor:


                  "8.1.  Landlord,  at its  expense,  shall keep,  maintain  and
                  repair in good condition the HVAC,  exterior walls (including,
                  but not limited to, preventing water leaks) and windows, roof,
                  structural  elements and building  systems of the Building and
                  the parking areas and landscaping on the Property. The cost of
                  performing  such  maintenance and repairs shall be included in
                  Operating Expenses to the extent permitted pursuant to Section
                  4.2 hereof. Notwithstanding anything to the contrary set forth
                  in this  Section  8.1,  Tenant  (and  not  Landlord)  shall be
                  responsible  for the  maintenance  of the items listed in this
                  Section 8.1 to the extent any  repairs  arise out of the fault
                  or negligence of Tenant.

                  8.2. Tenant shall,  throughout the Term, take good care of and
                  maintain  the  Premises  and the  fixtures  and  appurtenances
                  therein,  and shall make all repairs and replacements,  as and
                  when needed to preserve the Premises in good working order and
                  condition  except for those portions of the Premises which are
                  Landlord's  responsibility  as set forth in Section 8.1 above.
                  All damage or injury to the  Premises  or to any other part of
                  the Building, or to its grounds, fixtures,  equipment, systems
                  and   appurtenances,    whether   requiring    structural   or
                  nonstructural  repairs,   caused  by  or  resulting  from  any
                  carelessness,  act, omission, negligent or improper conduct of
                  Tenant,  Tenant's servants,  employees,  contractors,  agents,
                  invitees or  licensees,  or by the use or manner of use of the
                  Premises  by  Tenant  or any such  person,  shall be  repaired
                  promptly  by  Tenant  at its  sole  cost and  expense,  to the
                  reasonable satisfaction of Landlord.  Tenant shall also repair
                  all damage to the Building  and to the Premises  caused by the
                  moving of Tenant's fixtures,  furniture,  or equipment into or
                  out of the  Premises  or the  installation  thereof.  All such
                  repairs  shall be of quality  and class  equal to the  Initial
                  Tenant  Improvements.  If Tenant  fails  after ten (10)  days'
                  notice  to  proceed  with due  diligence  to make any  repairs
                  required to be made by Tenant (except in an emergency, wherein
                  Landlord   may   proceed   immediately   if  Tenant  does  not
                  immediately  proceed to repair),  such  repairs may be made by
                  Landlord at the  expense of Tenant and the costs and  expenses
                  thereof   incurred  by  Landlord   shall  be   collectible  as
                  Additional  Rent on the date on which the next  installment of
                  Fixed Rent is due hereunder  following delivery by Landlord of
                  an invoice therefor."


          6.  Section  27.1 of the Lease is hereby  deleted in its  entirety and
replaced with the following:

                  "27.1 Tenant will be provided with parking in accordance  with
                  the Plan titled "Site Plan Dialogic, Inc." prepared by Michael
                  B. McNally, dated February,  1998, (and last revised on August
                  17, 1998),  consisting of 16 pages,  and referenced as Project
                  Number  97041,  a copy of which has been  delivered to Tenant.
                  Landlord  shall  provide  Tenant with parking for no less than
                  3.8 cars per 1,000  rentable  square feet of  Tenant's  office
                  space. No other tenant of the Building shall have a right to a
                  greater ratio of parking spaces per rentable square feet."

          7. In addition to the Events of Default set forth in Section 13 of the
Lease,  it shall be an Event of Default  under the Lease if any Event of Default
occurs under the New Lease,  subject to any applicable cure periods set forth in
the New Lease.

          8.  Landlord and Tenant each  represent and warrant to each other that
neither  of them has  employed  or dealt  with any  broker,  agent or  finder in
carrying on the  negotiations  relating to this Lease,  other than  Insignia/ESG
(the "Broker"). Landlord and Tenant shall indemnify and hold each other harmless
from and against any claim or claims for brokerage or other commissions asserted
by any  broker,  agent or  finder  engaged  by  Landlord  or Tenant or with whom
Landlord or Tenant has dealt other than the  aforesaid  Broker.  This  provision
shall survive the expiration or earlier  termination of the Lease, but shall not
be  deemed  for the  benefit  of any  third  party.  Landlord  agrees to pay any
commission due to the Broker.

          9. Except as amended  herein,  all others terms and  provisions of the
Lease shall remain in full force and effect.

          10. This  Seventh  Amendment  shall be governed  by and  construed  in
accordance with the laws of the State of New Jersey.

          11.  This  Seventh  Amendment  embodies  and  constitutes  the  entire
understanding  between the parties with respect to the subject matter hereof and
all prior agreements, representations and statements oral or written relating to
the subject matter hereof are merged into this Seventh Amendment.

          12. Neither this Seventh Amendment nor any provision  contained herein
may be amended, modified or extended except by an instrument signed by the party
against whom enforcement of such amendment, modification or extension is sought.

          IN WITNESS  WHEREOF,  this  Amendment has been executed by the parties
hereto as of the day and year first written above.



                              THE MUTUAL LIFE INSURANCE COMPANY OF NEW YORK


                              By:/s/____________________
                                 Name:
                                 Title:


                              DIALOGIC CORPORATION


                              By:/s/_____________________
                                 Name:
                                 Title:



                                  EXHIBIT 10.11
                                      LEASE

          THIS  LEASE,  made as of this  30th  day of  September,  1998,  by and
between THE MUTUAL LIFE INSURANCE COMPANY OF NEW YORK, having an address of 1740
Broadway, New York, New York 10019 (the "Landlord") and DIALOGIC CORPORATION,  a
New Jersey corporation with offices and a principal place of business which will
be located at 1515 Route 10, Parsippany, New Jersey 07054 (the "Tenant").

                              W I T N E S S E T H :

          WHEREAS,  Landlord is the owner of the real  property  located at 1515
Route Ten,  Parsippany,  New Jersey (the  "Property") as more fully described on
the legal description set forth on Exhibit A annexed hereto;

          WHEREAS,  Landlord  currently  leases  to Tenant  all of the  existing
building  located on the Property  (the  "Existing  Building")  pursuant to that
certain lease dated August 31, 1993 as amended by those certain amendments dated
January 1, 1994,  January 20, 1994, July 19, 1994,  December 20, 1994, April 15,
1996,  November  21, 1997 and  September  30,  1998 (the lease as  amended,  the
"Existing Lease");

          WHEREAS,  Tenant has  requested and Landlord has agreed to construct a
new three-story building containing approximately 67,000 rentable square feet to
be located next to the Existing Building (the "Building"); and

          WHEREAS,  Tenant wishes to lease from Landlord and Landlord  wishes to
lease to Tenant the entire  Building  pursuant to the terms and  conditions  set
forth herein.

          NOW, THEREFORE,  in consideration of the mutual covenants  hereinafter
set forth, and for other good and valuable  consideration,  the receipt of which
is hereby acknowledged, Landlord and Tenant agree as follows:

          1. Premises.

          1.1.  Landlord  hereby  leases to Tenant and Tenant hereby leases from
Landlord all of the space in the Building  which shall be  approximately  67,000
square feet (the  "Premises"),  together with the right to parking as designated
herein, the common area right designated herein,  right of ingress and egress to
the  Building  in  common  with  others.  Within  thirty  (30)  days  after  the
Commencement Date,  Landlord shall cause the Premises to be measured pursuant to
the BOMA method and the exact square footage shall be deemed fixed in accordance
with such  measurements  with an  "add-on  factor" in  accordance  with the BOMA

<PAGE>

method. Promptly thereafter,  Landlord shall cause to be delivered to Tenant the
dimensions  of the Building  and the  Premises as measured  pursuant to the BOMA
method.

          2. Term.

          2.1 The Premises are leased for a term ("Term")  which shall  commence
on a date ("Commencement Date") which shall be the earlier of:

               (a)  the  date  the  Premises  are  substantially   completed  in
accordance with Section 6.5 and possession of the Premises has been delivered to
Tenant; or

               (b) the date Tenant shall occupy the Premises or any part thereof
for the purpose of conducting its business.

          2.2.  The Term  shall  end at 12  o'clock  noon on the last day of the
month in which the 10th anniversary of the Commencement Date occurs ("Expiration
Date"),  unless the Term shall  sooner  terminate  pursuant to any of the terms,
covenants or conditions of this Lease or pursuant to law.

          2.3. As soon as  practicable  after the  Commencement  Date,  Landlord
shall deliver to Tenant written  notice  confirming  the  Commencement  Date and
Expiration  Date,  and  Tenant  shall  acknowledge  such  Commencement  Date and
Expiration  Date by returning to Landlord an executed copy of such notice within
five (5) business days of Tenant's receipt of such notice.

          2.4. If the last day of the Term of this Lease or any renewal  thereof
falls on a Sunday,  this Lease shall expire at 12 o'clock noon on the  preceding
Saturday  unless  it be a legal  holiday  in which  case it shall  expire  at 12
o'clock noon on the preceding business day.

          2.5.  Tenant  shall  have two (2)  options  to renew  the Term for the
Premises,  each for a period of five (5) years.  Each  option  shall be properly
exercised by Tenant only if (a) Tenant delivers  written notice of such exercise
one year prior to the  Expiration  Date, as same may be extended,  time being of
the essence with respect to such exercise,  (b) as of the date Tenant  exercises
the option and on the date  immediately  prior to the  option  term,  this Lease
shall not have been  previously  terminated or cancelled nor shall any breach or
default by Tenant of any of its obligations under this Lease be continuing,  and
(c)  Tenant  exercises  its  option in the  Existing  Lease to  extend  the term
thereof,  so that the option term of the  Existing  Lease and the option term as

<PAGE>

provided under this Section 2.5 shall be coterminous.  The Fixed Rent to be paid
during each option period shall be determined in accordance  with Section 3.1(b)
hereof.

          3. Rent.

          3.1. (a) Fixed Rent.  Tenant shall pay to Landlord an annual base rent
(the "Fixed  Rent") for the  Premises,  which shall be paid  without  set-off or
deduction, in equal monthly installments in advance on the first day of each and
every calendar month during the Term of this Lease, to Landlord or to Landlord's
agent, at such place as Landlord may designate to Tenant, in lawful money of the
United  States of America for the payment of all debts,  public and private,  as
follows:

                                     Rent Per
Lease Years                         Square Foot

Years 1 and 2                        $23.50
Years 3 and 4                        $25.00
Years 5 and 6                        $26.50
Years 7-8                            $28.00

Year 9 - Expiration  Date $29.50,  plus  Tenant's  electric  pursuant to Section
4.13. The first installment of Fixed Rent (prorated, if necessary) shall be paid
on the Commencement Date.

          (b) The Fixed  Rent to be paid for the  first  option  period  and the
second option period  referred to in Section 2.5 shall be the greater of (i) the
average of the Fixed Rent paid by Tenant for the 5 preceding  years  immediately
prior to the applicable option period,  and (ii) 95% of the fair market rent, as
hereinafter determined.

          (c) In the event that  Landlord  and Tenant  have not agreed  upon the
fair  market  rent for the  Premises  prior to the date which is ten (10) months
before the commencement of the option period,  such value shall be determined by
arbitration in the following manner:

               (i)  Landlord and Tenant shall have ten (10) days within which to
select,  with  reasonable  cooperation  and good faith,  one mutually  agreeable
arbitrator.  If Landlord and Tenant fail to agree on one  arbitrator  within the
ten (10) day period,  either  party may  promptly  request the  president of the
local  chapter of the American  Institute of Appraisers to appoint an arbitrator
for the matter,  and said  president's  selection shall be binding upon Landlord
and Tenant. Said president shall appoint as an arbitrator an individual with the
following  qualifications:  a licensed MAI real estate appraiser having at least
ten (10) years experience,  generally  recognized  competence in valuing offices
leases in the  Township  of  Parsippany,  New  Jersey,  and who has never been a
direct or indirect employee,  agent or affiliate of either Landlord or Tenant or
any of their affiliates;

<PAGE>

               (ii) Landlord and Tenant shall each submit to the arbitrator,  in
writing, its good faith determination of the fair rental value of the Premises;

               (iii) The  arbitrator  selected must choose either  Landlord's or
Tenant's good faith  determination  of the fair rental value of the Premises and
the  arbitrator's  choice  shall be final  and  binding  upon  the  parties.  In
determining  the fair rental value of the Premises  and which of  Landlord's  or
Tenant's  determinations  to select,  the arbitrator shall consider all relevant
factors,  including without limitation, the length of the renewal term, the size
and credit  worthiness of Tenant,  the size, age,  condition and location of the
Premises and the Building,  concessions,  abatements  and  allowances and Tenant
improvements.  From the date of  appointment,  the arbitrator  shall have thirty
(30) days within  which to render a decision as to the fair rental  value of the
Premises.  If the  arbitrator  fails to render a decision  within the applicable
30-day  period,  either  party  shall  have the  right to apply to the  American
Arbitration  Association for a decision.  Except as provided  above,  each party
shall  pay (1) its own  costs  and  expenses,  including,  but not  limited  to,
attorney and witness fees incurred in connection with such arbitration,  and (2)
one-half of the cost charged by the arbitrator; and

               (iv) Judgment upon the award rendered by the arbitrator  shall be
binding  upon  the  parties  and  may be  entered  in  any  court  of  competent
jurisdiction.

          4. Additional Rent.

          4.1. In addition to the Fixed Rent  payable  under  Article  Three (3)
hereof,  Tenant shall pay to Landlord  additional rent consisting of all sums of
money as shall become due and payable by Tenant under this Lease including,  but
not  limited  to, the  payments  due under  this  Article 4  (collectively,  the
"Additional Rent").

          4.2. The following terms shall have the meanings set forth herein:

          "Base Operating  Expenses" shall mean Operating  Expenses  payable for
the Base Operating  Expense Year,  adjusted and calculated as if the Building is
ninety-five (95%) percent occupied for the entire year.

          "Base Operating  Expense Year" shall be the 12 month period  following
the Commencement Date.

          "Base Taxes" shall mean an amount equal to the product of (a) the real
estate tax rate in effect for the year in which the Premises  are  substantially
completed in  accordance  with  Section  6.5, and (b) the assessed  value of the
Building as of the date the Building is fully  assessed as a completed and fully
occupied Building.  If the Building is not fully assessed by the last day of the

<PAGE>

year in which the Premises is  substantially  completed,  Landlord  shall make a
reasonable  determination  of the  Base  Taxes,  which  determination  shall  be
adjusted  when  the  Building  is  fully  assessed  by  the  appropriate  taxing
authority.

          "Operating  Expenses"  as referred  to in the Lease shall  include all
actual expenses reasonably incurred by Landlord in connection with the operation
and  maintenance  of the Building,  comparable  to such  expenses  incurred with
respect to office  buildings  similarly  situated  and  occupied,  but shall not
include the following:  (a) the cost of construction of any  improvements on the
real  property,  including any addition,  alteration  or  refurbishing  of space
leased to other tenants in the Building, except that amounts equal to savings of
labor or other costs in connection with the operation of the Building  resulting
from such capital  improvements  shall be included;  (b) expenses for repairs or
other  work  occasioned  by fire,  windstorm  or other  casualty  in excess of a
reasonable  deductible  amount  provided in  Landlord's  insurance  policy;  (c)
expenses  incurred in leasing or procuring  new tenants for the  Building  (e.g.
commissions, advertising, renovation and legal); (d) legal expenses in enforcing
the  terms of any lease  other  than  this  Lease;  (e)  interest  or  principal
amortization  payments  on any  mortgage;  (f) any Taxes,  as referred to in the
Lease, corporate franchise or net worth taxes, income taxes (state and federal),
personal  property  taxes,  excess profit taxes,  license  inspection and permit
fees; (g) any expenses  incurred for which Landlord has a right of reimbursement
from a tenant in the Building;  (h) claims paid by Landlord in  satisfaction  or
settlement  of liability in tort;  (i) any  payments to the ground  lessor;  (j)
depreciation of the Building or other improvements  located on the real property
and (k)  replacement of the parking lot,  roof,  HVAC equipment or other capital
improvements  (as determined in accordance  with generally  accepted  accounting
principles) items, other than the following capital improvements which are to be
included in Operating  Expenses:  (i)  improvements  required by any  applicable
laws, codes,  rules and regulations or the National Board of Fire  Underwriters,
the New  Jersey  Board of Fire  Underwriters  or any other body  having  similar
jurisdiction,  or (ii)  improvements,  equipment or machinery  installed for the
purpose of reducing energy consumption or reducing other Operating Expenses. Any
capital improvements  included in Operating Expenses shall be amortized over the
useful  life  of such  improvements,  equipment  and  machinery  (determined  in
accordance  with generally  accepted  accounting  principals),  with an interest
factor  calculated  using the lower of (x) the  interest  rate being  charged to
Landlord for financing such improvement,  equipment and/or machinery, or (y) the
Prime Rate (as  defined in Section  21.1).  All  expenses  paid by  Landlord  to
persons or business  entities which are affiliated in any way with Landlord must
be reasonable and comparable to similar expenses paid by landlords  generally in

<PAGE>

arms-length  transactions  in  order to be  includable  in  operating  expenses.
Notwithstanding anything to the contrary contained herein, as long as this Lease
encumbers the entire Building,  Landlord shall not include in Operating Expenses
the amortized  cost of making any  improvements  or purchasing  any equipment or
machinery  installed for the purpose of reducing energy  consumption or reducing
other Operating Expenses,  unless Tenant has approved, in writing, the making of
such improvements or the purchase of such equipment or machinery, which approval
shall not be unreasonably withheld or delayed.

          "Common Areas" shall mean all portions of the Building not intended as
rentable area, including,  without limitation the parting facilities appurtenant
to the Building.

          "Governmental  Authority"  shall  mean  any  Federal,  State,  County,
municipal or local government and all departments, commissions, boards, bureaus,
and offices thereof having or claiming jurisdiction over the Building.

          "Landlord's  Statement"  shall mean written  statements  issued by the
Landlord  from  time to time  containing  computations  of  Additional  Rent due
pursuant to the provisions of this Article 4.

          "Landlord's  Tax Statement"  shall have the meaning given to such term
in Section 4.3(b) hereof.

          "Monthly  Tax  Payment"  shall have the meaning  given to such term in
Section 4.3(c) hereof.

          "Operational Year" shall mean each period of twelve consecutive months
after the Base Operating Expense Year.

          "Taxes"  shall mean all real  estate  taxes,  assessments,  special or
otherwise (but not including  added or omitted  assessments  relating to periods
prior to the Commencement  Date), sewer rents,  rates and charges,  water rents,
rates and charges, or any other charge of a Government Authority of a similar or
dissimilar  nature,  of any kind,  which may be levied or assessed  upon or with
respect  to  the  Building,  or  any  part  thereof,  or on  the  appurtenances,
sidewalks, streets and road adjacent to the Building or on any use or occupation
of the Building and all taxes or charges  levied on the Fixed Rent or Additional
Rent or the gross  receipts from the Building which are in lieu of or substitute
for, any other tax or assessment or charge upon or with respect to the Building.
For purposes of determining  Taxes incurred in any Tax Year, all assessments and
other  similar  charges  shall be deemed to be paid by Landlord over the maximum
number of  installments  permitted,  except that Tenant  shall pay all  interest

<PAGE>

charges  incurred  by virtue of any  installment  payments.  Taxes  shall not be
deemed to include:

          (a) franchise or similar taxes of Landlord;

          (b) income, excess profits or other taxes, if any, of Landlord, except
to the extent such taxes are expressly in lieu of or a substitute  for any other
tax,  assessment  or  charge  upon  the  Building,  which,  if such  other  tax,
assessment  or charge  were in effect  would be  payable  by Tenant as  provided
herein,  in which event such taxes shall be computed as if the Building were the
only property of Landlord,  and the Fixed and Additional Rent hereunder the only
income of Landlord; and

          (c) any penalty or interest for late payment of Taxes.

          "Tax Year"  shall mean the period of twelve  (12)  consecutive  months
commencing  on  January  1st of each year after the  calendar  year in which the
Commencement Date occurs.

          "Tenant's Proportionate Share" shall equal 100%.

          4.3. (a) If Taxes payable in any Tax Year falling  wholly or partially
within  the Term  shall be  greater  than the Base  Taxes,  Tenant  shall pay to
Landlord,  as Additional  Rent,  Tenant's  Proportionate  Share of the amount by
which the Taxes for such Tax Year exceed the Base Taxes ("Excess Taxes").

               (b) As soon as  practicable, Landlord shall determine or estimate
the Excess  Taxes,  if any, for each Tax Year and shall submit such  information
to Tenant in a written statement ("Landlord's Tax Statement").

               (c)  Commencing  on the  first day of each Tax Year or, if later,
the  first  day  of  the  month  immediately  following  the  submission  of any
Landlord's Tax Statement and continuing  thereafter  until Landlord  renders the
next  Landlord's Tax  Statement,  Tenant shall pay to Landlord on account of its
obligation  under Section 4.3(a) hereof, a sum (the "Monthly Tax Payment") equal
to one-twelfth  (1/12) of Tenant's  Proportionate  Share of the Excess Taxes for
such Tax Year.  Tenant's  first  Monthly Tax Payment after receipt of Landlord's
Tax  Statement  shall be  accompanied  by the payment of an amount  equal to the
product of the number of full  months,  if any,  within the Tax Year which shall
have  elapsed  prior to such first  Monthly Tax  Payment,  times the Monthly Tax
Payment,  minus any  Additional  Rent  already  paid by Tenant on account of its
obligation under this Section 4.3 for such Tax Year.

               (d) Each  Landlord's Tax Statement  shall  reconcile the payments
made by Tenant pursuant to the preceding  Landlord's Tax Statement with Tenant's

<PAGE>

Proportionate  Share of the actual Excess Taxes  imposed for the period  covered
thereby.  Any balance due to Landlord shall be paid by Tenant within thirty (30)
days after  Tenant's  receipt of Landlord's  Tax  Statement;  any surplus due to
Tenant  shall  be  applied  by  Landlord   against  the  next  accruing  monthly
installment(s)  of  Additional  Rent.  If the  Term  has  expired  or  has  been
terminated,  Tenant  shall pay the balance due to  Landlord  or,  alternatively,
Landlord  shall refund the surplus to Tenant,  whichever the case may be, within
thirty (30) days after Tenant's  receipt of Landlord's Tax Statement;  provided,
however,  if the Term  shall  have been  terminated  as a result of a default by
Tenant,  then Landlord shall have the right to retain such surplus to the extent
Tenant owes Landlord any Fixed Rent or Additional Rent.

          4.4. (a) If Landlord shall receive any refund of Taxes in respect of a
Tax Year and if Tenant shall have paid  Additional  Rent based on the Taxes paid
prior to the refund,  Landlord  shall deduct from such tax refund any  expenses,
including,  but not limited to, attorney's fees and appraisal fees,  incurred in
obtaining such tax refund,  and out of the remaining balance of such tax refund,
Landlord shall credit  Tenant's  Proportionate  Share of such refund against the
next accruing monthly installments of Additional Rent, or if the Term shall have
expired, Tenant's Proportionate Share of such refund shall be refunded to Tenant
within thirty (30) days after receipt thereof by Landlord; provided, however, if
the Term shall have expired as a result of a default by Tenant,  Landlord  shall
have the  right to  retain  Tenant's  Proportionate  Share of the  refund to the
extent Tenant owes Landlord any Fixed Rent or Additional Rent.

               (b)  Notwithstanding  anything to the contrary  contained in this
Lease,  Tenant shall not have the right to contest or appeal the validity of any
Taxes or the amount of the assessed  valuation of the Building without the prior
written consent of Landlord, which consent shall not be unreasonably withheld.

               (c) While proceedings for the reduction in assessed valuation for
any Tax Year is pending,  the computation and payment of Tenant's  Proportionate
Share of Excess  Taxes  shall be based upon the  original  assessments  for such
year.

               (d) Tenant shall also pay to Landlord,  as Additional  Rent, upon
demand,  the  amount  of all  increases  in  Taxes  and/or  all  assessments  or
impositions made, levied or assessed against or imposed upon the Building or any
part thereof which are attributable to additions or improvements in, on or about
the Premises  made by or on behalf of Tenant or which in whole or in part belong
to Tenant, subsequent to the Commencement Date.

          4.5. (a) If Operating Expenses payable in any Operational Year falling
wholly or  partially  within the Term shall be greater  than the Base  Operating
Expenses,   Tenant  shall  pay  to  Landlord,   as  Additional  Rent,   Tenant's

<PAGE>

Proportionate  Share of the  amount by which  the  Operating  Expenses  for such
Operational Year exceed the Base Operating Expenses ("Excess Expenses").

               (b) As soon as practicable, Landlord shall estimate the Operating
Expenses  and Excess  Expenses for each  Operational  Year and shall submit such
information to Tenant in a written statement ("Landlord's Statement");  provided
that the  estimate  of  Operating  Expenses  shall  not be more than 110% of the
Operating  Expenses  actually  incurred in the prior  Operational  Year,  unless
Landlord  delivers  to  Tenant  documentation  reasonably  acceptable  to Tenant
showing  that the  Operating  Expenses  will  increase  by more than 110% of the
Operating Expenses for the prior Operational Year.

               (c) Commencing on the first day of each  Operational  Year or, if
later,  the first day of the month  immediately  following the submission of any
Landlord's  Statement and continuing  thereafter until Landlord renders the next
Landlord's Statement,  Tenant shall pay to Landlord on account of its obligation
under Section  4.5(a) hereof,  a sum (the "Monthly  Expense  Payment")  equal to
one-twelfth  (1/12) of Tenant's  Proportionate  Share of the Excess Expenses for
such Operational  Year.  Tenant's first Monthly Expense Payment after receipt of
Landlord's  Statement  shall be accompanied by the payment of an amount equal to
the product of the number of full months,  if any, within the Expense Year which
shall  have  elapsed  prior to such first  Monthly  Expense  Payment,  times the
Monthly  Expense  Payment,  minus any Additional  Rent already paid by Tenant on
account of its obligation under this Section 4.5. for such Expense Year.

               (d) Each  Landlord's  Statement shall reconcile the payments made
by  Tenant  pursuant  to  the  preceding   Landlord's  Statement  with  Tenant's
Proportionate Share of the actual Excess Expenses imposed for the period covered
thereby.  Any balance due to Landlord shall be paid by Tenant within thirty (30)
days after Tenant's receipt of Landlord's  Statement;  any surplus due to Tenant
shall be applied by Landlord against the next accruing monthly installment(s) of
Additional  Rent. If the Term has expired or has been  terminated,  Tenant shall
pay the balance due to Landlord  or,  alternatively,  Landlord  shall refund the
surplus to Tenant,  whichever  the case may be,  within  thirty  (30) days after
Tenant's receipt of Landlord's Statement;  provided,  however, if the Term shall
have been  terminated as a result of a default by Tenant,  then  Landlord  shall
have the right to retain such  surplus to the extent  Tenant owes  Landlord  any
Fixed Rent or Additional Rent.

         4.6. [INTENTIONALLY DELETED]

<PAGE>

          4.7. Landlord's failure to render Landlord's Statement with respect to
any  Operational  Year or Tax  Year,  or  Landlord's  delay  in  rendering  said
Statement beyond a date specified herein,  shall not prejudice  Landlord's right
to  render  a  Landlord's  Statement  with  respect  to that  or any  subsequent
Operational  Year or Tax Year. The  obligations of Landlord and Tenant under the
provisions of this Section with respect to any Additional Rent shall survive the
expiration or any sooner termination of the Term.

          4.8. Each  Landlord's  Statement  shall be conclusive and binding upon
the Tenant,  unless Tenant shall notify Landlord,  within thirty (30) days after
receipt of Landlord's Statement,  that it disputes the correctness of Landlord's
Statement,  specifying the respects in which Landlord's  Statement is claimed to
be  incorrect.  Pending  the  adjudication  of such  dispute,  Tenant  shall pay
Additional  Rent equal to the  Additional  Rent payable  pursuant to  Landlord's
Statement in dispute and such payment  shall be without  prejudice to Landlord's
or Tenant's position in any legal proceeding commenced by Landlord or Tenant.

          4.9. [INTENTIONALLY DELETED]

          4.10.  Any Additional  Rent payable  pursuant to this Section shall be
collectible  by Landlord in the same manner as Fixed Rent,  and  Landlord  shall
have the same rem edies for  non-payment  thereof as Landlord has  hereunder for
non-payment of Fixed Rent.

          4.11.  Any  payments  of  Additional  Rent or  refunds  due to  Tenant
hereunder  for any period of less than a full year, or any  adjustment  required
due to the change in the area of the Premises, shall be equitably prorated.

          4.12. If Tenant shall fail to pay when due, including any grace period
for the purpose hereof,  any  installment of Fixed Rent or any Additional  Rent,
Tenant shall pay interest thereon at the interest rate,  provided for in Section
21 hereof,  from the date when such installment or payment shall have become due
to the date of the payment  thereof,  together with a late charge equal to three
percent (3%) of the sum unpaid,  which  interest and late charge shall be deemed
Additional Rent.

          4.13. Tenant shall pay (a) to the applicable utility company, Tenant's
electricity  used in the  Premises,  the usage of which  shall be  measured by a
meter installed by Landlord,  at its sole cost and expense,  and (b) to Landlord
all actual costs of electric for overtime  HVAC costs,  the usage of which shall
be measured by a meter installed by Landlord,  at its sole cost and expense. If,
at any time during the Term this Lease does not  encumber  the entire  Building,
then the cost of the  electricity  used within the Common  Areas of the Building
shall  be  included  in  Operating  Expenses,  and  Tenant  shall  pay  Tenant's

<PAGE>

Proportionate Share thereof.  Notwithstanding anything to the contrary set forth
in this Section 4.13,  Landlord shall be  responsible  for the cost of providing
electricity  for HVAC services to the Premises during Business Hours (as defined
in Section 9.1 hereof).

          4.14. In no event shall any  adjustment in Tenant's  obligation to pay
Additional  Rent  under this  Article 4 result in a  decrease  in the Fixed Rent
payable  hereunder.  Tenant's  obligation to pay Additional Rent, and Landlord's
obligation  to credit  and/or  refund  to Tenant  any  amount,  pursuant  to the
provisions of this Article 4, shall survive the Expiration Date.

          5. Electricity.

          5.1.  Landlord  shall,  at  its  sole  cost  and  expense,  cause  the
electrical  power  to be  supplied  to  the  Premises  in  accordance  with  the
specifications  set forth in  Exhibit  B. As long as this  Lease  encumbers  the
entire  Building,  Tenant  shall have the right to arrange  with,  and have sole
discretion to select, the electric utility company to provide electricity to the
Premises in accordance with Section 4.13 hereof. At such time as this Lease does
not  encumber  the entire  Building,  Landlord  shall make the  selection of the
utility  company  supplying  electricity to the Building.  Landlord shall not be
liable in any way to Tenant for any failure or defect in the supply or character
of electricity  furnished to the Premises by reason of any  requirement,  act or
omission of the public utility serving the Building with  electricity or for any
reason not  attributable to Landlord.  Except for Landlord's  obligations  under
Article 6 herein,  Tenant shall furnish and install  lighting  tubes,  lamps and
bulbs required in the Premises,  at Tenant's  expenses,  or shall pay Landlord's
reasonable  charges  therefor  on  demand.  Tenant  shall  not pay  (as  part of
Operating  Expense Payments or otherwise)  replacement costs for lighting tubes,
lamps and bulbs for other tenants.

          5.2.  Tenant's use of  electricity  in the Premises  shall not, at any
time,  exceed the capacity of any of the electrical  conductors and equipment in
or serving the Premises. Tenant shall not, without Landlord's prior consent make
any  alteration  or addition to the  electrical  systems in the  Premises or the
Building.  All additional  risers or other equipment  required therefor shall be
provided  by  Landlord  and the  cost  thereof  shall  be paid  by  Tenant  upon
Landlord's demand.

          6. Improvements in Preparation for Occupancy.

<PAGE>

          6.1 Landlord  agrees,  at its sole cost and expense,  to construct the
Building substantially in accordance with the Fundamental Design Report attached
hereto as Exhibit B, and the Plan titled "Site Plan Dialogic,  Inc." prepared by
Michael B. McNally, dated February, 1998, (and last revised on August 17, 1998),
consisting of 16 pages,  and  referenced as Project  Number 97041 (the "Building
Plans"),  a copy of which has been delivered to Tenant.  Landlord covenants that
the Building  shall be  constructed  in a  first-class  manner.  Landlord  shall
consult  with  Tenant  regarding  the  materials  used for the  exterior  of the
Building,  provided,  however,  that in no event shall  Tenant have the right to
dictate to Landlord the types of materials to be used for such exterior.

          6.2. (a) Landlord shall cause to be constructed  certain  improvements
to the Premises in  preparation  for Tenant's  occupancy  (the  "Initial  Tenant
Improvements")  in  accordance  with the plans and  specifications  referred  to
herein.  Landlord  shall pay for the cost of  constructing  the  Initial  Tenant
Improvements,  including the cost of all  architectural and engineering plans in
connection  therewith.  Tenant  shall  reimburse  Landlord  for  all  Costs  (as
hereinafter  defined)  incurred by Landlord in connection with  constructing the
Initial Tenant  Improvements  which are in excess of $25.00 per rentable  square
foot  of  leased  space  (the  "Allowance").  Notwithstanding  anything  to  the
contrary,  Landlord shall be solely  responsible  for the cost of installing the
electrical meters in the Premises and the Allowance shall not be applied to such
costs.  After the  Initial  Tenant  Improvements  are  substantially  completed,
Landlord  shall deliver to Tenant an invoice  evidencing  the cost of completing
the Initial  Tenant  Improvements  in excess of the  Allowance  and Tenant shall
reimburse  Landlord for such Costs within thirty (30) days after receipt of such
invoice.  The term "Costs" shall mean all actual costs  incurred by Landlord for
work performed or caused to be performed by Landlord, its architects, engineers,
contractors  and  subcontractors,  including,  but not  limited  to, the cost of
materials,  labor, permits, approvals and insurance. Costs shall not include any
fees  payable to Landlord in  connection  with its  construction  of the Initial
Tenant Improvements,  nor shall it include the payment for any salaries or other
internal costs of Landlord in connection with such construction.

               (b)  Landlord  shall  obtain  bids for  constructing  the Initial
Tenant  Improvements  from  five (5)  contractors,  three (3) of which are to be
selected  by Landlord  and two (2) of which are to be  selected  by Tenant.  The
bidding shall be done on a sealed bid basis,  and Landlord and Tenant shall open
all bids  together.  If,  either  Landlord  or Tenant  desires not to select the
lowest  bidder  among the  contractors  and the bid  rendered by the  contractor
preferred by either  Landlord or Tenant exceeds $25.00 per rentable square foot,
Landlord and Tenant shall  promptly meet and use all good faith efforts to agree
upon the  selection  of the general  contractor  to perform  the Initial  Tenant

<PAGE>

Improvements. In the event that Landlord and Tenant cannot agree within five (5)
days after  submission of all bids,  Landlord shall have the right to select the
lowest  bidder  among  the  bidding  general  contractors.   Landlord  shall  be
responsible for obtaining all necessary permits and governmental  authorizations
required in connection with the Initial Tenant  Improvements  (the cost of which
shall be included in the  Allowance).  Landlord  represents that all contractors
and  subcontractors  will be properly licensed and qualified to perform the work
contracted  for.  Except  as  expressly   provided   above,   all   contractors,
subcontractors,  contracts,  subcontracts  and other  construction  documents in
connection with the Initial Tenant Improvements shall not be subject to Tenant's
approval.  Tenant  shall  have the  right  (whether  or not  through  an  agent,
contractor or independent architect) to inspect the Premises, from time to time,
prior to the Commencement Date to verify the progress of construction,  provided
that Tenant coordinates such inspections with Landlord's general contractor.

          6.3. (a) Landlord  shall use all  reasonable  efforts to submit to the
Township of Parsippany,  New Jersey (the "Township") the construction  plans and
specifications for the construction of the shell of the Building,  together with
all  applications  necessary  in  Landlord's  reasonable  judgment  to  obtain a
building  permit  for  the  construction  of  the  shell  of the  Building  (the
"Submission  Documents")  by October 13, 1998 (such date, as it may be extended,
is hereinafter referred to as the "Submission Date"); provided, however, that if
Tenant and the  architect  designated  by Landlord have not agreed in writing to
those  items of the  Initial  Tenant  Improvements  which will  impact  upon the
construction  of the Building shell by September 4, 1998,  the  Submission  Date
shall be  extended  to a date which is four (4) weeks  after the date Tenant and
the architect so agree.

               (b) Landlord  shall use all reasonable  efforts to  substantially
complete  construction  of the  Building  and the  Initial  Tenant  Improvements
pursuant to Section 6.5 hereof by  September  1, 1999 (such date is  hereinafter
referred to as the "Anticipated  Completion  Date").  In the event that Landlord
has not  substantially  completed  construction  of the Building and the Initial
Tenant  Improvements  by  November  30,  1999,  as such date may be  extended or
reduced as a result of a Tenant  Delay,  an  Unavoidable  Delay or  pursuant  to
Sections  6.3(c) and (e) (such date is  hereinafter  referred to as the "Outside
Completion  Date"),  then,  beginning on the Commencement  Date, Tenant shall be
entitled to a  day-for-day  abatement  of Fixed Rent for each day that  Landlord
delivers  the  Premises  (with the  Initial  Tenant  Improvements  substantially
completed) to Tenant after the Outside Completion Date.

<PAGE>

               (c) Notwithstanding anything to the contrary set forth in Section
6.2(b)  above,  if  Landlord  fails to submit the  Submission  Documents  by the
Submission  Date, the Outside  Completion Date shall be reduced on a day-for-day
basis for each day that the  Submission  Documents are submitted to the Township
after the Submission Date.

               (d) If Landlord fails to deliver the Premises to Tenant by May 1,
2000 with the Initial Tenant Improvements  substantially completed in accordance
with the terms of this Lease,  Tenant  shall have the right to deliver a written
termination  notice (the  "Termination  Notice") to  Landlord  terminating  this
Lease, at any time prior to the delivery of the Premises with the Initial Tenant
Improvements  substantially completed. If Tenant delivers the Termination Notice
to Landlord, this Lease shall terminate and be of no further force and effect as
of the  later of June 1,  2000 or the  thirtieth  (30th)  day  after  Landlord's
receipt of such notice, unless Landlord delivers the Premises to Tenant with the
Initial Tenant Improvements substantially completed in accordance with the terms
hereof by the later of June 1, 2000 or the  expiration  of such  thirty (30) day
period, in which event Tenant's  Termination  Notice shall be null and void, and
this Lease shall continue in full force and effect.

               (e)  Tenant  shall use all  reasonable  efforts  to  prepare  and
deliver to Landlord the schematic plans for the Initial Tenant Improvements (the
"Schematic  Plans") on or before  December 15, 1998.  If Tenant fails to deliver
the  Schematic  Plans to Landlord  prior to December 15, 1998,  then the Outside
Completion  Date shall be extended on a day-for-day  basis for each day that the
Schematic Plans are submitted after December 15, 1998. Landlord shall deliver to
Tenant written notice that it has approved or  disapproved  the Schematic  Plans
(which  approval  shall  not be  unreasonably  delayed)  as soon  as  reasonably
possible,  but in no event later than ten (10) business  days,  after receipt of
the Schematic  Plans.  If Landlord  disapproves of the Schematic  Plans,  Tenant
shall make all changes  requested by Landlord and deliver the revised  Schematic
Plans within ten (10)  business  days after  Landlord's  notice of  disapproval.
Landlord,   at  Tenant's  expense,   shall  deliver  construction  drawings  and
specifications for the Initial Tenant Improvements to Tenant consistent with the
Schematic  Plans within six (6) weeks of  Landlord's  approval of the  Schematic
Plans.  Tenant's comments to the construction  drawings and specifications  (the
"Final  Plans") shall be provided as soon as reasonably  possible after delivery
of  construction  documents,  but in no event later than ten (10)  business days
after receipt of the drawings.  Landlord shall not commence  construction of the
Initial Tenant Improvements until Tenant has approved the Final Plans.

<PAGE>

          6.4.  If Tenant  decides to amend,  change or modify  the Final  Plans
after the Final Plans have been  approved by  Landlord,  Tenant  shall submit to
Landlord for its approval (which approval shall not be unreasonably  withheld) a
reasonably detailed description of a proposed amendment,  change or modification
(hereinafter  referred to as a "Change  Order").  Within ten (10) business days
after  receipt of the Change  Order,  Landlord  shall notify  Tenant  whether it
approves or disapproves the Change Order, the estimated  construction  costs for
the Change Order and the effect,  if any, of the Change Order on the Anticipated
Completion  Date. If Landlord  approves the Change Order,  Landlord shall notify
Tenant of such approval and Tenant shall notify Landlord whether it approves the
estimated cost and the effect, if any, on the Anticipated Completion Date within
five (5) business days after Tenant's  receipt of Landlord's  notice.  If Tenant
fails to notify  Landlord of Tenant's  approval  of the  estimated  cost and the
effect on the  Anticipated  Completion  Date within said five (5)  business  day
period,  then Tenant shall be deemed to have  disapproved the estimated cost and
effect on the  Anticipated  Completion  Date.  Notwithstanding  anything  to the
contrary contained herein, Landlord shall not proceed with the work shown on any
approved Change Order unless Tenant has approved Landlord's determination of the
cost and effect of the Change Order.

          6.5. The Premises shall be conclusively  deemed available for Tenant's
occupancy on, and the Commencement  Date shall be, the date all of the following
conditions have been met:

          (a) a temporary  certificate  of occupancy  (whether or not subject to
conditions), permitting occupancy of the Premises has or have been issued by the
applicable governmental authority; and

          (b) the Initial Tenant Improvements have been substantially  completed
(excluding  any details of  construction,  decoration or  mechanical  adjustment
which  do not  materially  interfere  with  Tenant's  use of  such  part  of the
Premises); and

          (c) five (5) days  written  notice  of the  occurrence  of the  events
described in Subsections (a) and (b) has been given to Tenant; and

          (d) sixty (60) days after Tenant is first given access to the Premises
to install its trade fixtures and other equipment,  provided, however, that such
sixty (60) day period  shall be extended if  Landlord  requests  Tenant to cease
such  installation  pursuant  to  Section  6.10  by  the  number  of  days  such
installation has ceased at the request of Landlord.

<PAGE>

          6.6. The term "Tenant Delay" shall mean any delay in the completion of
the Initial Tenant  Improvements  or in the  satisfaction  of any conditions set
forth in Section 6.5 to the extent such delay is due in substantial  part to any
act or omission of Tenant, its agents,  employees, or contractors.  Tenant Delay
shall include:  (a) delays in the delivery by Tenant of the Schematic  Plans and
approval of the Final Plans;  (b) delays arising from Change Orders requested by
Tenant;  (c) delays in obtaining any item  requested by Tenant which is not part
of Landlord's base building work as described on Exhibit B; and (d) a request by
Tenant  that  Landlord  suspend  or  otherwise   hold-up   proceeding  with  the
fabrication or  construction  of any portion of the Initial Tenant  Improvements
because of a possible change therein by Tenant or for any other reason. Landlord
shall provide written notice to Tenant of any Tenant Delay.

          6.7. If Landlord shall fail to deliver the Premises to Tenant with the
Initial Tenant Improvements substantially completed (as provided in Section 6.5)
prior to the expiration of the Outside  Completion  Date, and provided that such
failure shall not have been caused in substantial  part by or been  attributable
to (a) any  Unavoidable  Delay (as  defined in Section  38  hereof),  or (b) any
Tenant Delay (as defined in Section 6.6  hereof),  Tenant shall be entitled to a
credit (the "Rent Credit") against the installments of Fixed Rent first accruing
under this Lease  subsequent  to the  Commencement  Date until such Rent  Credit
shall be fully applied, in an amount equal to one day of Fixed Rent for each day
commencing  on the  Anticipated  Completion  Date,  and  continuing  through and
including  the  date  in  which  the  Premises  is  substantially  completed  in
accordance with the provisions of Section 6.5 hereof.  Notwithstanding  anything
to the contrary contained herein, if Landlord shall fail to deliver the Premises
to Tenant with the Initial Tenant Improvements  substantially completed prior to
the Anticipated  Completion Date, and provided that such failure shall have been
caused by or  attributable  to either an Unavoidable  Delay or any Tenant Delay,
then one day shall be added to the  Anticipated  Completion Date for each day in
case of an Unavoidable  Delay, from and after the date of the occurrence of such
event until the delay  attributable to such Unavoidable Delay shall cease or, in
the case of a Tenant  Delay,  from and after the  occurrence of the Tenant Delay
until the delay attributable to such Tenant Delay shall cease.

          6.8. By entering into occupancy of any part of the Premises (excluding
access as contemplated by Section 6.10),  Tenant shall be conclusively deemed to
have agreed that Landlord,  up to the time of such occupancy,  had performed all
of its obligations  hereunder with respect to such part of the Premises and that
such part,  except for minor details of construction,  decoration and mechanical
adjustment,  was in  satisfactory  condition  as of the date of such  occupancy,

<PAGE>

unless within ten (10) days after such date Tenant shall give notice to Landlord
specifying the respects in which the same was not in such condition.

          6.9. If Landlord is delayed in  delivering  possession of the Premises
to Tenant  because  of the fact that a  certificate  of  occupancy  has not been
procured,  or for  any  other  reason,  Landlord  shall  not be  subject  to any
liability  for  damages  for  failure  to give  possession  on said date and the
validity of this Lease shall not be impaired under such circumstances.

          6.10. At least sixty (60) days prior to the Commencement  Date, Tenant
shall be permitted  access to install its trade  fixtures  and other  equipment,
provided,  that in no event shall Tenant  interfere  with the  completion of the
Initial Tenant  Improvements  in connection  with its  installation of its trade
fixtures and other equipment and Tenant shall immediately cease any such work if
Landlord  notifies  Tenant  that  such  installation  is  interfering  with  the
construction of the Initial Tenant Improvements.

          6.11.  Landlord shall cause, at its expense,  the Building,  including
the access areas into the Building and doorways, to be delivered and maintained,
and the Initial Tenant  Improvements  to be delivered (but not  maintained),  in
compliance  with  all laws  (including  the  provisions  of the  Americans  with
Disabilities  Act (the "ADA")).  Tenant,  at its sole cost and  expense,  shall
maintain the Initial Tenant Improvements,  and construct and maintain any future
alterations, in compliance with all laws (including the ADA).

          6.12. (a) As part of the construction of the Building,  Landlord shall
build an enclosed one story bridge  connecting  the second floor of the Building
to the second floor of the Existing  Building (with a sidewalk and access to the
buildings on the first floor), with materials  consistent with those used in the
Building.  Such construction  shall include the connection to both the first and
second  floors of the Building and the Existing  Building.  In addition,  at the
request of Tenant,  Landlord  shall  purchase  and install  one or more "static
switch(es)" for the Building and/or the Existing  Building.  The  specifications
for the static  switch(es) shall meet the  specifications  determined by Tenant.
The  construction of the bridge and the purchase and  installation of the static
switch(es)  shall not be deemed part of the  Initial  Tenant  Improvements,  and
Landlord's  failure to complete such bridge and install the static switch(es) by
the  Anticipated  Completion  Date shall in no way affect the  determination  of
whether  the  Commencement  Date has  occurred  pursuant  to Section 6.5 hereof.
Landlord shall use reasonable efforts to minimize its interference with Tenant's
operations in the Existing  Building  caused by the  construction  of the bridge
and/or the static  switch(es),  provided,  that,  in no event shall  Landlord be
required to perform such work after Business Hours.

<PAGE>

               (b)  Landlord  shall pay for the first  $750,000  of the Costs to
build the bridge and purchase and install the static  switch(es) as specified in
subsection (a) above. If the Costs of constructing the bridge and purchasing and
installing  the  static  switch(es)  is  greater  than  $750,000,  Tenant  shall
reimburse  Landlord  for the Costs  thereof  within  thirty  (30) days  after an
invoice,  marked paid by the applicable vendor,  specifying in reasonable detail
the amount paid by Landlord is delivered to Tenant. If the Costs of constructing
the  bridge  and  purchasing  and  installing  static  switch(es)  is less  than
$750,000,  the  difference  shall  be added  to the  Allowance.  Notwithstanding
anything to the contrary  contained in this Section 6.12,  if, at the request of
Tenant  Landlord  does  not  build  the  bridge,  then  Landlord  shall  have no
obligation  to pay for the  cost of  purchasing  and/or  installing  the  static
switch(es)  and there shall be no amount  added to the  Allowance as provided in
the immediately preceding sentence.

          7. Alterations

          7.1. Following the completion of the Initial Tenant  Improvements,  as
long as there is no  continuing  Event of Default  by Tenant  under the terms of
this Lease,  Tenant may,  upon prior notice to Landlord and  submission of plans
and  specifications  to Landlord,  if applicable,  make interior  non-structural
additions or improvements  to or alterations to the Premises,  having a cost not
to exceed  $200,000.00,  either  individually  or in the  aggregate,  with other
alterations  made within a twelve (12) month period,  as long as the same do not
affect,  alter,  interfere  with or disrupt any of the  electrical,  mechanical,
plumbing or other systems in the Building,  or the outside  appearance,  roof or
any  structural  element  of  the  Building  (collectively  or  individually,  a
"Building Disruption"). A Building Disruption shall not include minor changes to
the  electrical or HVAC systems in the Premises  resulting from an alteration to
the Premises which does not interfere with the electrical or HVAC systems in the
space of any other tenant in the Building, if any.

          7.2.  Tenant  shall  not  make  any  addition  or  improvement  in  or
alteration of the Premises which (a) has a cost in excess of $200,000.00, either
individually  or in the aggregate  with other  alterations  made within a twelve
(12)  month  period,  or (b) is a  Building  Disruption  (any  such  work  being
hereinafter  referred to as "Major Work"),  unless  Tenant  submits to Landlord
detailed plans and specifications therefore and Landlord approves such plans and
specifications  in writing,  which approval may not be unreasonably  withheld or
delayed by Landlord,  provided  Landlord may withhold  such approval in its sole
discretion for Major Work impacting  Building systems,  the outside  appearance,
roof or any structural element of the Building.

<PAGE>

          7.3.  After  completion  of such Major Work,  Tenant  agrees to pay to
Landlord,  within thirty (30) days after  delivery by Landlord of  documentation
reasonably  acceptable to Tenant  evidencing such costs,  Landlord's  actual and
reasonable  costs for reviewing  Tenant's  plans and overseeing the work for any
alterations,   improvements  or  additions  made  pursuant  to  this  Article  7
constituting  Major Work,  not to exceed five percent (5%) of all costs incurred
by Tenant in making such alterations, improvements or additions.

          7.4. (a) If Tenant  performs any  subsequent  alterations  pursuant to
Section 7.1 or 7.2, Tenant shall,  prior to the  commencement of construction or
demolition,  at  its  expense,  obtain  all  building  permits,   approvals  and
certificates  required by any  Governmental  Authority  and upon  completion,  a
certificate  of occupancy  and shall  deliver  promptly  duplicates  of all such
permits,  approvals and  certificates  to Landlord.  Tenant will cause  Tenant's
contractors  and   subcontractors  to  carry  workers'   compensation,   general
liability,  auto liability,  property  damage  insurance and any other insurance
reasonably  requested by Landlord,  naming as an  additional  insured  Landlord,
Landlord's  property  manager,  and  any  holder  of  a  Superior  Mortgage  (as
hereinafter  defined)  as their  interest  may  appear,  in amounts  and in form
reasonably  acceptable  to  Landlord.  Tenant  agrees to obtain  and  deliver to
Landlord  certificates  of insurance  evidencing the required  coverage.  If any
mechanic's lien is filed against the Premises or the Building,  for work claimed
to have been done for, or materials  furnished to,  Tenant,  whether or not done
pursuant to this Article,  the same shall be discharged or bonded by Tenant,  at
Tenant's  expense,  within 30 days after  Tenant's  notice of the filing of such
lien.

               (b) Tenant shall perform any additional improvement or alteration
in a good and  workmanlike  manner and in compliance  with all applicable  legal
requirements and in accordance with the standards, if any, of the National Board
of Fire Underwriters or other organizations exercising similar functions.

               (c) All  materials  and  workmanship  shall be of at least  equal
quality to the Initial Tenant Improvements.

               (d) In all events,  Landlord shall be permitted to designate,  in
its own absolute discretion, the contractor(s) to be used by Tenant for heating,
ventilation and air-conditioning  ("HVAC"),  plumbing,  electrical or mechanical
work,  which  contractor  shall be the contractor then used by Landlord for such
systems in the Building.  Such  contractor  shall carry  workers'  compensation,
general  liability,  automobile  liability,  property damage insurance and other
insurance  reasonably  carried by contractors  performing such work. If Landlord
does not  designate  its own  contractors  to perform the work set forth in this

<PAGE>

Section  7.4(d),  Tenant may designate its own  contractor to perform such work,
provided,  that Landlord  approves such contractor,  which approval shall not be
unreasonably  withheld.  Tenant hereby waives any rights,  of any kind or nature
whatsoever,  it may now or hereafter  have  against  Landlord as a result of any
loss,  cost or expenses  (including  attorney's  fees),  foreseen or unforeseen,
incurred  by  Tenant   solely  by  virtue  of  Tenant's   required  use  of  the
contractor(s) so selected by Landlord.

          7.5. All improvements to the Premises,  including without  limitation,
the Initial Tenant Improvements and all fixtures, paneling, partitions, railings
and like  installations  (excluding  movable  partitions  and Tenant's  personal
property  and  equipment  but  including  wall-to-wall  carpeting,   drapes  and
fixtures)  installed  in the  Premises  at any  time,  either by  Tenant,  or by
Landlord on Tenant's  behalf,  shall  become the  property of Landlord and shall
remain upon and be surrendered with the Premises unless  Landlord,  by notice to
Tenant at the time of approval (to the extent  approval is required by the terms
of this Lease),  elects to have the same removed by Tenant,  in which event, the
same shall be so removed  from the  Premises  by Tenant no later than the end of
the Term,  at Tenant's  expense  and Tenant  shall  immediately  and at its sole
expense,  repair and restore the  Premises as may be  necessary  to maintain its
structural  integrity  following  removal  and  repair  any other  damage to the
Premises or the Building due to such removal.  Notwithstanding the foregoing, at
the time  Landlord  approves the Initial  Tenant  Improvements,  Landlord  shall
inform Tenant what of the Initial  Tenant  Improvements  shall be removed at the
end of the Term. Tenant's trade fixtures and personal property may be removed by
Tenant at the end of the Term. All property permitted or required by Landlord to
be removed from the Premises at the end of the Term that,  nonetheless,  remains
in the Premises after Tenant's  surrender  thereof shall be deemed abandoned and
may, at the election of Landlord,  either be retained as Landlord's  property or
may  be  removed   from  the   Premises  by   Landlord   at  Tenant's   expense.
Notwithstanding  anything to the contrary contained in this Section 7.5,  at the
end of the term of this Lease  Tenant  shall not have the  obligation  to remove
from the Premises raised flooring,  stairways, vaults or the improvements in the
engineering  offices.  

          7.6 Tenant agrees not to employ,  either  directly or  indirectly,  or
permit the employment of, any contractors, subcontractors, materialmen, laborer,
vendor,  mover or any  other  party  ("Contracting  Parties")  employed  for any
services  relating to or in connection  with the Premises  which,  in Landlord's
sole opinion, would create any difficulty, strike or jurisdictional dispute with
other  Contracting  Parties  engaged by Tenant,  Landlord,  other tenants in the
Building or others, or would in any way disturb the  construction,  maintenance,
cleaning, repair, management,  security or operation of the Building or any part
thereof.  Tenant,  upon demand by  Landlord,  shall  cause all such  Contracting
Parties  causing  such  interference,  difficulty  or  conflict,  to leave or be
removed from the Building immediately.

<PAGE>

          8. Repairs and Maintenance.

          8.1. Landlord, at its expense, shall keep, maintain and repair in good
condition the HVAC,  exterior walls  (including,  but not limited to, preventing
water leaks) and windows,  roof, structural elements and building systems of the
Building and the parking  areas and  landscaping  on the  Property.  The cost of
performing such maintenance and repairs shall be included in Operating  Expenses
to the extent permitted pursuant to Section 4.2 hereof. Notwithstanding anything
to the contrary set forth in this Section 8.1,  Tenant (and not Landlord)  shall
be  responsible  for the  maintenance of the items listed in this Section 8.1 to
the extent any repairs arise out of the fault or negligence of Tenant.

          8.2. Tenant shall, throughout the Term, take good care of and maintain
the  Premises and the fixtures  and  appurtenances  therein,  and shall make all
repairs and  replacements,  as and when needed to preserve  the Premises in good
working order and condition  except for those portions of the Premises which are
Landlord's  responsibility  as set forth in  Section  8.1  above.  All damage or
injury to the Premises or to any other part of the Building,  or to its grounds,
fixtures, equipment, systems and appurtenances,  whether requiring structural or
nonstructural  repairs,  caused  by or  resulting  from any  carelessness,  act,
omission, negligent or improper conduct of Tenant, Tenant's servants, employees,
contractors,  agents,  invitees or licensees,  or by the use or manner of use of
the Premises by Tenant or any such person,  shall be repaired promptly by Tenant
at its sole cost and expense, to the reasonable satisfaction of Landlord. Tenant
shall also repair all damage to the Building  and to the Premises  caused by the
moving of Tenant's fixtures, furniture, or equipment into or out of the Premises
or the  installation  thereof.  All such  repairs  shall be of quality and class
equal to the Initial Tenant  Improvements.  If Tenant fails after ten (10) days'
notice to proceed with due diligence to make any repairs  required to be made by
Tenant  (except in an emergency,  wherein  Landlord may proceed  immediately  if
Tenant  does not  immediately  proceed to repair),  such  repairs may be made by
Landlord at the expense of Tenant and the costs and expenses thereof incurred by
Landlord shall be  collectible as Additional  Rent on the date on which the next
installment of Fixed Rent is due hereunder  following delivery by Landlord of an
invoice therefor.

          8.3 On the  Commencement  Date,  Landlord  shall deliver to Tenant the
Building's mechanical and electrical systems in good working order.

<PAGE>

          9. Utilities and Services.

          9.1. As long as Tenant is not in default under any of the covenants of
this Lease, Landlord shall provide: (a) necessary elevator facilities;  (b) HVAC
to the Premises when and as required on business days (holidays excepted) from 8
a.m.  to 6 p.m.  (weekdays)  and 8  a.m.  to 1  p.m.  (Saturday)  (collectively,
"Business Hours"); (c) water for ordinary purposes; and (d) cleaning services in
accordance with Exhibit C hereto, for the common areas of the Building,  and the
Premises, on business days (holidays excepted),  provided that the same are kept
in order by Tenant.  Special  cleaning  services in excess of those  provided by
Landlord,  at Tenant's  request,  shall be at Tenant's sole cost and expense and
subject to  Landlord's  reasonable  approval.  Landlord  shall  maintain a guard
service from 6 p.m. to 11 p.m.,  Monday through Friday;  and 9 a.m. to 4 p.m. on
Saturdays and Sundays. In addition,  Landlord shall maintain three full time (3)
building  engineers  and one (1) full time day porter for both the  Building and
the Existing Building. At any time during the Term that this Lease encumbers the
entire Building, Tenant shall have the right to assume the obligation to provide
guard service for the Building by delivering written notice thereof to Landlord.
If Tenant  assumes such  obligation,  Landlord  shall  reimburse  Tenant for the
actual  and  reasonable  costs  incurred  by Tenant for  maintaining  such guard
service.  In no event shall the amount Landlord is obligated to reimburse Tenant
for  providing  such guard  service  exceed the cost  incurred  by  Landlord  in
providing such guard service  immediately  prior to the date that Tenant assumes
the obligation to provide such service,  or, if Landlord has never provided such
guard  service,  the  proportionate  share of the cost Tenant is  reimbursed  by
Landlord for guard service in the Existing  Building.  Landlord shall  reimburse
Tenant  within  thirty  (30) days  after  receipt  of  documentation  reasonably
acceptable to Landlord evidencing that Tenant has paid for such guard service.

          9.2.  Landlord  reserves the right to suspend services of the heating,
elevators,  plumbing,  air  conditioners,  power  systems or  cleaning  or other
services,  when  necessary  by reason of accident or for  repairs,  alterations,
replacements or improvements necessary for as long as may be reasonably required
by  reason  thereof,  or  by  reason  of  strikes,  accidents,  laws,  order  or
regulations  or any other  reason  beyond the control of  Landlord,  and in such
case,  Tenant shall not be entitled to any abatement of rent or any other offset
whatsoever.  Landlord  shall provide  Tenant with advance notice of any proposed
suspension and will use commercially  reasonable  efforts to effect the repairs,
alterations and replacements.

          9.3. (a) In addition to any rights of Tenant under Section 9.3(b),  if
permitted by applicable laws, Tenant shall have the right to place  supplemental
HVAC  equipment  and a satellite  dish on the roof of the  Building.  Tenant may

<PAGE>

request  and  Landlord  shall  designate  an  area  on  the  Building  roof  for
supplemental  HVAC  equipment and a satellite  dish which shall be purchased and
installed by Tenant.  Landlord  shall review all plans and  Landlord's  approval
shall not be  unreasonably  withheld or delayed.  Tenant shall pay all costs for
reinforcing  the roof to support the  supplemental  system  and/or the satellite
dish.  Landlord  shall  have  the  right  to  perform  any  work  regarding  the
reinforcement of the roof, at Tenant's expense. At the expiration of this Lease,
Tenant shall restore the Building and Premises to the condition  existing  prior
to any modifications for supplementary HVAC and the satellite dish.

               (b)  During  the  time  that  this  Lease  encumbers  the  entire
Building,  Tenant shall be permitted to place supplemental HVAC equipment and/or
a satellite dish on an y portion of the Property, provided the location of which
is reasonably acceptable to Landlord and such installation is in compliance with
all applicable laws and regulations.  If, at any time during the Term this Lease
does not encumber the entire Building,  then, upon request by Landlord,  Tenant,
at its sole cost and expense, shall place such equipment and/or dish on the roof
of the  Building,  and in such event  Tenant shall  comply with  subsection  (a)
above.

          10. Insurance.

          10.1. Tenant shall maintain  commercial  general  liability  insurance
providing  coverage for bodily  injury,  personal  injury,  property  damage and
contractual  liability  with limits of at least  $3,000,000  per  occurrence and
$5,000,000 annual  aggregate,  or such higher limits as Landlord shall prudently
require, with carriers and in forms reasonably satisfactory to Landlord.

          10.2. If Tenant shall fail to maintain  such  insurance as is required
by this  Article  10,  Landlord  may obtain  such  insurance,  the amount of the
premium or premiums paid by Landlord for such insurance  shall be collectible as
Additional  Rent on the date on which the next  installment of Fixed Rent is due
hereunder following delivery by Landlord of an invoice therefor.

          10.3. All insurance  policies  maintained by Tenant under this Article
10 shall name Landlord, Landlord's property manager and any holder of a Superior
Mortgage as an additional insured.

          10.4. Landlord, at Landlord's cost and expense, will maintain all-risk
property  insurance  in an  amount  not less  than the  replacement  cost of the
Building.

          10.5. Tenant shall carry fire and extended coverage insurance insuring
its interest in Tenant's personal property, including but not limited to, office
furniture,  equipment  and  supplies  therein.  Tenant shall  maintain  Workers'

<PAGE>

Compensation  insurance  as  required  by the  State  of New  Jersey  as well as
Employers'  Liability  insurance  with a limit of at least $100,000 per employee
per accident.

          10.6.  Each party hereby waives any rights of action against the other
for loss or damage covered by the property insurance required hereunder and each
party  covenants and agrees with the other that it will obtain a waiver from the
carriers  of  such  property   insurance   policies   releasing  such  carrier's
subrogation  rights as against the Landlord  and/or Tenant,  as the case may be.
Tenant  shall  provide  Landlord  with  Certificates  of  Insurance  which shall
evidence that the insurance required hereunder is in full force and effect, that
such  insurance  will not be  terminated or canceled  without  thirty (30) days'
prior written  notice to Landlord by the carrier of such  insurance and that the
carrier of such  insurance  waives all right of recovery  by way of  subrogation
against the Landlord.  The Certificates  will be delivered prior to occupancy of
the Premises and Tenant shall  deliver new  Certificates  showing the renewal of
the coverage at least 10 days prior to the expiration of the existing coverage.

          10.7. Tenant shall not do anything, or suffer or permit anything to be
done in or about the Premises,  the Building or its common areas which shall (a)
subject Landlord to any liability or responsibility  for injury to any person or
property by reason of any activity  being  conducted on the Premises,  (b) cause
any increase in the fire insurance rates applicable to the Building or equipment
or other property located therein,  or (c) be prohibited by any license or other
permit  required  or issued  by  Governmental  Authority.  Tenant,  at  Tenant's
expense, shall comply with all rules, orders, regulations or requirements of the
National Board of Fire  Underwriters  or any similar body. In the event that any
alteration of the Premises by Tenant, any act or omission of Tenant, or Tenant's
occupancy  of the  Premises  shall  cause  the rate of fire or  other  insurance
maintained by Landlord on the Building or the Premises to be  increased,  Tenant
shall pay the  amount of any such  increase  as  Additional  Rent on the date on
which the next installment of Fixed Rent is due hereunder  following delivery by
Landlord of an invoice therefor.

         11.      Use.

          11.1.  Tenant  shall use the Premises for  engineering  labs,  general
business,   professional,   executive,  and  administrative  offices,  and  such
activities as are normally incidental thereto. Tenant shall not use the Premises
for any other purpose.

          11.2. Tenant shall not use or occupy, suffer or permit the Premises or
any part  thereof to be used in any manner,  or  anything to be done  therein or
suffer or permit anything to be brought into or kept therein, which would in any
way tend to or: (a) cause  substantial or  objectionable  noise, (b) violate any

<PAGE>

laws or requirements of a Governmental Authority,  (c) make void or voidable any
insurance  policy then in force with respect to the  Building and Common  Areas,
(d) make  unobtainable  from  reputable  insurance  companies  authorized  to do
business in the State of New Jersey at standard  rates any fire  insurance  with
extended coverage, or liability, elevator, boiler or other insurance required to
be furnished by Landlord under the terms of a Superior Mortgage (e) cause, or be
likely  to cause,  physical  damage to the  Building,  Common  Areas or any part
thereof, (f) constitute a public or private nuisance, (g) impair the appearance,
character or  reputation of the Building,  (h)  discharge  objectionable  fumes,
vapors  or  odors  into  the  Building's  air  conditioning  system  or into the
Building's flues or vents or otherwise in such manner as may unreasonable offend
other occupants, or (i) impair or interfere with any of the Building's services,
including  the  furnishing  of  electrical  energy,  or the proper and  economic
cleaning,  air  conditioning or other servicing of the Building or the Premises,
or impair or interfere  with the use of any of the other areas of the  Building,
or occasional  discomfort,  annoyance or inconvenience to Landlord or any of the
other tenants or occupants of the Building.  The provisions of this Section, and
the application  thereof,  shall not be deemed to be limited in any way to or by
the  provisions  of any other  Section  of this  Article or any of the Rules and
Regulations set forth in Exhibit D hereto.

          11.3.  Tenant will not at any time use or occupy,  or suffer or permit
to use or occupy the  Premises in  violation  of any  certificate  of  occupancy
issued for or insurance  policies issued on the Building or any applicable laws,
statutes, rules, ordinances,  orders, regulations of any Governmental Authority,
including,  without  limitation,  any recycling laws or other  environmental  or
conservation laws.

          11.4. Except in accordance with all legal  requirements,  Tenant shall
not  store,  use,  or  dispose  of  any  hazardous   materials  (as  defined  in
Section1014(14)  of the Comprehensive  Environmental  Response  Compensation and
Liability Act of 1980,  as amended from time to time (42 U.S.C.  Section 9601 et
seq.) or N.J.A.C.  7:16-1.1), in, on, under or about the Premises. Tenant shall,
at Tenant's own expense,  comply with the Industrial Site Recovery Act, N.J.S.A.
13:1k-6  et seq.,  and all other  applicable  federal,  state,  and local  laws,
promulgated with respect to hazardous substances and the regulations promulgated
thereunder  applicable  to the Premises  and Tenant's use thereof.  Tenant shall
defend, indemnify and hold harmless Landlord from and against all claims, costs,
and liabilities, including attorneys' fees, arising out of or in connection with
Tenant's breach of its obligations under this Section 11.4. Tenant's obligations

<PAGE>

under this Section 11.4 shall survive the  expiration or earlier  termination of
this Lease.

          11.5.  Tenant  shall not  place a load upon any floor of the  Premises
that  exceeds  the floor load per square  foot that such floor was  designed  to
carry and which is allowed by certificate,  rule, regulation,  permit or law. If
Tenant wishes to place any safe, heavy machinery, heavy equipment, bulky matters
or fixtures  in the  Premises,  it may do so at its own  expense,  but  Landlord
reserves the right to prescribe their weight and position. Business machines and
mechanical  equipment in the Premises  shall be placed and maintained by Tenant,
at  Tenant's  expense,  in such  manner  as shall be  sufficient  in  Landlord's
judgment to absorb vibration and noise and prevent annoyance or inconvenience to
any other Tenant or occupant of the Building.

          12. Assignment and Subletting.

          12.1. Neither this Lease, nor the term and estate hereby granted,  nor
any part hereof or thereof, shall be assigned, mortgaged, pledged, encumbered or
otherwise transferred by Tenant and neither the Premises,  nor any part thereof,
shall be  encumbered  in any manner by reason of any act or omission on the part
of Tenant or anyone  claiming under or through Tenant without  Landlord's  prior
written  consent which consent  shall not be  unreasonably  withheld or delayed.
Tenant shall have the right,  with the prior  consent of Landlord  which consent
shall not be unreasonably withheld or delayed, to assign this Lease or to sublet
the Premises or any portion thereof provided:

               (a) Tenant  shall  furnish  Landlord  with the name and  business
address of the proposed assignee or subtenant, a copy of the proposed assignment
or  subletting  agreement  which  includes the rental  amounts to be paid by the
subtenant,  and reasonably  satisfactory  information with respect to the nature
and character of the business and financial  condition of the proposed  assignee
or  subtenant.  Any  proposed  assignee or  subtenant  must,  in the  reasonable
judgment of the Landlord, be of a character, engage in a business and maintain a
financial  condition  which is in  keeping  with  the  reasonable  standards  of
Landlord for the Building.

               (b) The  purposes  for which the  proposed  assignee or subtenant
intends to use the Premises are expressly permitted by this Lease;

               (c) No subletting  shall be for a term  (including  renewals,  if
any) ending later than one day prior to the expiration date of this Lease;

               (d) No Event of Default  shall have  occurred and be  continuing,
either at the time that  Landlord's  consent to any  assignment or subletting if

<PAGE>

required or on (i) the proposed  effective date of the  assignment,  or (ii) the
date of the commencement of the term of any such assignment or subletting;

               (e)  Tenant  agrees  to  pay  Landlord,   in  consideration   for
Landlord's consent to the assignment or subletting,  net of expenses incurred by
Tenant,  fifty percent (50%) of the difference of between the amount Tenant pays
to Landlord pursuant to this Lease with respect to the Premises,  or the portion
thereof sublet or assigned,  and the amount received by Tenant from its assignee
or subtenant with respect thereto.

               (f) If,  at any  time  during  the  renewal  periods,  Tenant  is
occupying less than seventy percent (70%) of the Premises, then Tenant agrees to
pay to Landlord one hundred  percent  (100%) of any Net Profits (as  hereinafter
defined) received by Tenant from its assignee or subtenant with respect thereto.
For  purposes  hereof,  the term  "Net  Profits"  shall  mean,  in the case of a
sublease, the amount by which the aggregate of all rents,  additional charges or
consideration  payable  under a sublease to Tenant by the  subtenant  (including
sums paid for the sale or rental of Tenant's fixtures,  leasehold  improvements,
equipment,  furniture or other personal  property to the extent such sums exceed
the fair market value or fair market rental value of such items, as the case may
be)  exceed  the sum of (i) the Fixed  Rent plus all  amounts  payable by Tenant
pursuant to the provisions  hereof during the term of the sublease in respect of
the sublease space,  including  Additional Rent, and (ii) brokerage  commissions
due and owing to a real estate  brokerage firm in connection  with the sublease,
together  with legal  fees,  architectural  and  engineering  fees,  advertising
expenses and construction costs and allowances  incurred by Tenant in connection
with such sublease;  and in the case of an  assignment,  the amount by which all
sums and  considerations  paid to Tenant by an  assignee of this Lease for or by
reason  of such  assignment  (including  sums  paid  for the sale or  rental  of
Tenant's  fixtures,  leasehold  improvements,   equipment,  furniture  or  other
personal  property to the extent such sums exceed the fair market  value or fair
market  rental  value  of such  items,  as the case  may be)  exceed  the sum of
brokerage  commissions  due  and  owing  to a real  estate  brokerage  firm,  in
connection  with the  assignment,  together with legal fees,  architectural  and
engineering  fees,  advertising  expenses and construction  costs and allowances
incurred by Tenant in connection with such  assignment,  plus the Fixed Rent and
all other  amounts  payable by Tenant,  including  Additional  Rent,  payable by
Tenant hereunder for the remainder of the Term;

               (g)  Tenant  agrees  to pay  to  Landlord  an  amount  that  will
reimburse  Landlord for reasonable legal fees actually  incurred by it to engage
outside counsel to assist it in reviewing and approving the proposed  assignment
or subletting, but, in no event, shall reasonable fees exceed $1,000.00; and

<PAGE>

               (h) Tenant shall deliver promptly to Landlord an executed copy of
each  assignment  or  subletting  agreement as may be authorized by this Article
upon the execution of any such agreement.

          12.2.  Landlord and Tenant agree that it will not be unreasonable  for
Landlord  to  withhold  its  consent  to any  assignment  or  subletting  if the
assignment  or   subletting   will  increase   Landlord's   financial   risk  or
responsibility  or jeopardize  the  enforceability  of the Lease or restrict its
ability to lease other space in the Building.

          12.3. No assignment,  subletting or occupancy shall be deemed a waiver
of the  provisions  in this  Article  12 or a release  of  Tenant  from the full
performance  by Tenant of all of the terms,  conditions  and  covenants  of this
Lease.  Each assignee  shall assume and be deemed to have assumed this Lease and
shall be and remain liable  jointly and severally with Tenant for the payment of
the Fixed Rent and Additional Rent and for the due performance of all the terms,
covenants,  conditions  and agreements  herein  contained on Tenant's part to be
performed for the Term of this Lease. No merger or business consolidation,  sale
of control or shares or other change of ownership or management shall constitute
an assignment or subleasing hereunder.

          12.4.  Landlord's  approval of any  assignment  or  sublease  shall be
conditioned  upon Landlord  approving  the executed  copy of each  assignment or
subletting  agreement,  which  approval  shall not be  unreasonably  withheld or
delayed.  Any sublease shall provide that it is subject and  subordinate to this
Lease and to the  matters to which this  Lease is  subordinate,  and that in the
event of a  termination  of this Lease,  such  subtenant  shall,  at  Landlord's
option,  attorn to Landlord  as its  sublessor  pursuant to the then  applicable
terms of such  sublease for the  remaining  term  thereof,  except that Landlord
shall not be (a) liable for any  previous act or omission of Tenant as sublessor
under such sublease, (b) subject to any offset which theretofore accrued to such
subtenant  against  Tenant,  or (c) bound by any previous  modification  of such
sublease not  consented to in writing by Landlord or by any previous  payment of
rent more than one (1) month in advance.
 
          13. Default.

          13.1.  Each of the  following  events  shall  constitute  an "Event of
Default" under this Lease:

               (a) the failure of Tenant to pay an  installment of Fixed Rent or
Additional Rent, or other sum of money whatsoever when due which Tenant shall be
obligated to pay under the provisions of this Lease,  if such failure  continues

<PAGE>

for ten (10)  days from the date  Landlord  delivers  to  Tenant  notice of such
failure;

               (b) an Event of Default (as such term is defined in the  Existing
Lease) has occurred under the Existing Lease;

               (c) the  failure of Tenant to perform or observe any of the other
terms,  covenants,  conditions  or  agreements  of this Lease,  if such  failure
continues for thirty (30) days after  delivery by Landlord of written  notice to
Tenant of such failure  (provided,  that in the case of any such  default  which
cannot be cured by the  payment  of money and  cannot  with  diligence  be cured
within said 30-day period,  if Tenant shall  commence  promptly to cure the same
and  thereafter  prosecutes  the curing  thereof  with  diligence  and  provides
Landlord with written evidence  thereof,  the term within which such default may
be cured shall be extended  for such period as  necessary to complete the curing
thereof with diligence);

               (d) the levy of any execution or attachment against Tenant or any
of Tenant's property pursuant to which the Premises, or any portion thereof, may
be taken or occupied by someone other than Tenant;

               (e) if Tenant shall file a voluntary  petition in  bankruptcy  or
insolvency,  or shall be adjudicated a bankrupt or insolvent,  or shall file any
petition  or  answer  seeking  any  reorganization,   arrangement,  composition,
readjustment,  liquidation,  dissolution  or similar relief under the present or
any future  federal  bankruptcy  act or any other  present or future  applicable
federal,  state or other  statute or law, or shall make any  assignment  for the
benefit of creditors or shall seek or consent to or acquiesce in the appointment
of any  trustee,  receiver  or  liquidator  of Tenant,  or of all or any part of
Tenant's property and,  provided further,  that within sixty (60) days after the
commencement of any such proceeding  against Tenant,  such proceeding  shall not
have  been  dismissed  or  stayed,  or if,  within  sixty  (60)  days  after the
appointment of any trustee,  receiver or liquidator of Tenant,  or of all or any
part of Tenant's property,  without the consent or acquiescence of Tenant,  such
appointment  shall not have been  vacated  or  otherwise  discharged,  or if any
execution  or  attachment  shall be issued  against  Tenant  or any of  Tenant's
property  pursuant to which the Premises shall be taken or occupied or attempted
to be taken or occupied;

               (f) if any  event  shall  occur or any  contingency  shall  raise
whereby this Lease or the estate hereby granted or the unexpired  balance of the
Term,  would,  by  operation  of law or  otherwise,  devolve upon or pass to any

<PAGE>

person,  firm or corporation other than Tenant except as if expressly  permitted
under Article 12;

               (g) if the Premises  shall become  vacant,  deserted or abandoned
for a period of thirty (30) consecutive days; or

               (h) if Tenant  shall  assign this Lease or sublet the Premises in
violation of the terms and provisions of Article 12 hereof.

          13.2. In the event Tenant becomes a debtor in a case pending under the
Bankruptcy Code (11 U.S.C. Section 101 et. seq.),  Landlord's right to terminate
this Lease shall be subject to the right of the trustee in bankruptcy, or debtor
in possession, as the case may be, to assume or assign this Lease. To the extent
permitted  or allowed by law,  the trustee or debtor shall not have the right to
assume or assign this Lease,  until the trustee or debtor (i) promptly cures all
defaults  under this Lease,  (ii)  promptly  compensates  Landlord  for monetary
damages  incurred  as a result of such  default,  and (iii)  provides "adequate
assurance  of future  performance",  which shall mean,  in addition to any other
requirements of 11 U.S.C. Section 365(b)(3), that all of the following have been
satisfied:  (a) in  addition  to rent  payable  under the Lease,  the trustee or
debtor shall establish with Landlord a security deposit equal to three months of
Fixed Rent;  (b) maintain  said security  deposit in said amount  whenever it is
drawn upon by  Landlord  after a default by Tenant;  (c)  trustee or debtor must
agree that Tenant's business shall be conducted in a first class manner; and (d)
the  use of the  Premises  shall  not  change.  If all  the  foregoing  are  not
satisfied,  Tenant shall be deemed not to have  provided  Landlord with adequate
assurance of future performance of this Lease.

          14. Remedies of Landlord.

          14.1. If at any time during the term of this Lease, one or more Events
of Default shall have occurred and shall not have been  remedied,  then,  and in
any such case, Landlord, at Landlord's option, may elect to:
 
               (a)  terminate  this  Lease  at any  time  by  giving  notice  of
termination to Tenant,  and the term hereof shall expire by limitation  upon the
date  prescribed in such notice as fully and completely as if said date were the
date herein  originally  fixed for the  expiration of the Term, and Tenant shall
thereupon quit and peacefully surrender the Premises to Landlord without payment
therefor by Landlord;

               (b) reenter  the  Premises,  and remove all persons and  property
therefrom, either by summary proceedings or by any suitable action or proceeding
at law; and/or

<PAGE>

               (c) commence  summary  dispossess  and/or  ejectment  proceedings
based on Tenant's failure to pay rent.

          14.2. In the event of the  termination of this Lease, or of reentry by
summary  proceedings,  ejectment or by any suitable action or proceeding at law,
or by agreement, or by force or otherwise, by reason of default hereunder on the
part of Tenant or Tenant's abandonment of the Premises, the non-prevailing party
shall  pay  reasonable  attorneys'  fees  and  costs  of the  prevailing  party.
Landlord's damages at the election of Landlord, are either:

               (a) sums equal to the Fixed Rent and the Additional  Rent payable
hereunder  which  would  have  been  payable  by  Tenant  had this  Lease not so
terminated,  or had Landlord not so reentered the Premises,  payable monthly, in
advance,  but otherwise upon the terms therefor  specified herein following such
termination  or such  reentry and until the  conclusion  of the Term,  provided,
however,  that if Landlord  shall relet the  Premises or any portion or portions
thereof  during said period,  Landlord  shall  credit  Tenant with the net rents
received by Landlord  from such  reletting,  such net rents to be  determined by
first  deducting from the gross rents as and when received by Landlord from such
reletting,  the reasonable  expenses incurred or paid by Landlord in terminating
the Lease or in reentering the Premises,  including reasonable  attorneys' fees,
and in  securing  possession  thereof,  as well as the  reasonable  expenses  of
reletting,  including  altering  and  preparing  the  Premises or any portion or
portions thereof for new tenants,  brokers'  commissions,  advertising expenses,
and all other expenses properly  chargeable  against the Premises and the rental
therefrom;  it being  understood  that any  such  reletting  may be for a period
shorter or longer than the remaining  term of this Lease,  but in no event shall
Tenant be entitled to receive any excess of such net rents over the sums payable
by Tenant to Landlord  hereunder,  nor shall  Tenant be entitled in any suit for
the collection of damages  pursuant to this subsection to a credit in respect of
any rents from a  reletting,  except to the extent that such rents are  actually
received by Landlord.  Landlord shall make  commercially  reasonable  efforts to
mitigate  damages.  If the  Premises  or any  part  thereof  should  be relet in
combination  with other space or for greater than the balance of the Term,  then
proper  apportionment shall be made of the rent received from such reletting and
of the  expenses  of  reletting,  and  Landlord  shall  have the  right to grant
reasonable rent concessions to attract one or more new Tenants and to permit the
term of any new lease  covering  part or all of the Premises to be for a shorter
or longer period than provided for herein; or

               (b) on  demand,  a  liquidated  sum  which  at the  time  of such
termination of this Lease or at the time of any such reentry by Landlord, as the
case may be,  represents  the present  value,  discounted  by the Prime Rate (as
defined in Section 21.1 hereof), of the excess of (i) the aggregate of the Fixed
Rent and the Additional Rent payable  hereunder which would have been payable by

<PAGE>

Tenant (conclusively presuming the Additional Rent to be the same as was payable
for the year immediately  proceeding such termination) for the period commencing
with such earlier  termination of this Lease or the date of such reentry, as the
case may be, and ending with the  conclusion of the Term,  had this Lease not so
terminated  or had Landlord not so reentered  the  Premises,  over (ii) the fair
market rental value  (calculated as of the date of such  termination or reentry)
of the Premises for the same period.

          14.3. If the Premises or any part thereof be relet by Landlord for the
unexpired  portion  of the  Term of this  Lease,  or any  part  thereof,  before
presentation of proof of such damages to any court,  commission or tribunal, the
amount of rent reserved upon such reletting  shall,  prima facie,  be the rental
value, for purposes of Section 14.2(b),  for the Premises,  or part thereof,  so
relet during the term of the reletting. Landlord shall in no event and in no way
be  responsible  or liable  for any  failure to relet the  Premises  or any part
thereof or for failure to collect any rent due upon any such reletting.

          14.4.  In the event  Landlord  elects to collect  damages  from Tenant
under Section 14.2(a), at any time subsequent to such election and upon ten (10)
days prior  written  notice to Tenant,  Landlord may elect to collect a lump sum
under Section  14.2(b),  crediting Tenant with amounts  theretofore  received by
Landlord as damages.

          14.5.  The foregoing  Sections of this Article shall also apply if the
default by Tenant has occurred  prior to the  Commencement  Date and/or prior to
Tenant taking possession of the Premises.

          14.6. Landlord, in putting the Premises in good order or preparing the
same for rerental may, at Landlord's  option,  make such  alterations,  repairs,
replacements,  and  decorations  in the  Premises  as  Landlord,  in  Landlord's
reasonable  judgment,  considers  advisable  and  necessary  for the  purpose of
reletting  the  Premises,   and  the  making  of  such   alterations,   repairs,
replacements,  and  decorations  shall not  operate or be  construed  to release
Tenant from liability hereunder as aforesaid.

          14.7.  Mention  in this  Lease  of any  particular  remedy  shall  not
preclude Landlord or Tenant from any other remedy, in law or in equity.

          15. Destruction, Fire or other Casualty.

<PAGE>

          15.1. If the Building,  Premises or any improvement therein, excepting
all items which Tenant is  obligated to insure  pursuant to Section 10.1 of this
Lease,  now or  hereafter  erected in or upon the  Building  shall be damaged or
destroyed, by fire, storm, earthquake or other casualty, then, Tenant shall give
prompt notice  thereof to Landlord and Landlord  shall,  at Landlord's  cost and
expense  proceed with reasonable  diligence to conduct any necessary  demolition
and to repair and restore the Building or such improvements.

          15.2.  Landlord  shall have no  obligation to repair or replace any of
Tenant's furniture,  equipment or supplies destroyed by fire, storm, earthquake,
water or other casualty.

          15.3.  If (a) more than fifty (50%) percent of the Premises is damaged
or  destroyed or (b) the Building is damaged or destroyed to the extent that the
Premises or access thereto cannot, with reasonable diligence,  be fully repaired
or restored by Landlord  within one hundred  eighty (180) days after the date of
the damage or destruction,  notwithstanding  the fact that the Premises may have
not been damaged or destroyed,  or (c) Landlord  elects to demolish the Building
following a substantial  casualty,  either party may terminate  this Lease.  The
terminating party shall notify the other party of its determination, in writing,
within  sixty  (60) days  after the date of the  damage or  destruction.  If the
Premises can be fully  repaired or restored  within the one hundred eighty (180)
day period,  or if such repair or restoration  cannot be made within said period
but neither  party  elects to terminate  this Lease,  this Lease shall remain in
full force and effect,  and  Landlord  shall  diligently  repair and restore the
damage as soon as reasonably possible, subject to the provisions of Section 15.1
herein.

          15.4. If the Premises are partially  destroyed or damaged and Landlord
repairs or restores them pursuant to the  provisions of this Article,  the Fixed
Rent and  Additional  Rent payable  hereunder  for the period  during which such
damage,  repair or  restoration  continues  shall be abated in proportion to the
degree  to  which  Tenant's  reasonable  use of the  Premises  is  substantially
impaired.  Except for  abatement,  if any,  of Fixed Rent and  Additional  Rent,
Tenant shall have no claim against  Landlord for any damages  suffered by reason
of any such damage, destruction, repair or restoration.

          16. Condemnation.

          16.1. If the Building or such part thereof as will render the Premises
unsuitable  for Tenant's  reasonable  use shall be acquired or condemned for any
public or  quasi-public  use or purpose,  this Lease shall end as of the date of
the vesting of title in the condemning authority.

<PAGE>

          16.2. In the event of any such  acquisition or  condemnation of all or
any part of the Premises, Landlord shall be entitled to receive the entire award
for any such  acquisition  or  condemnation.  Tenant shall have no claim against
Landlord or the condemning  authority for the value of any unexpired  portion of
the Term and Tenant hereby expressly assigns to Landlord all of its right, title
and  interest in and to any such  award,  and also agrees to execute any and all
further  documents  that may be required in order to facilitate  the  collection
thereof by Landlord.  Nothing contained herein shall be deemed to prevent Tenant
from  making a separate  claim in any  condemnation  proceedings  for any moving
expenses,  for the value of any of Tenant's property which would be removable at
the end of the Term  pursuant  to the  provisions  of this  Lease  or for  other
damages which do not detract from or reduce Landlord's share of the award.

          17. Subordination.

          17.1.  This Lease and the term and estate hereby granted are and shall
be subject and  subordinate to the lien of each mortgage which may now or at any
time hereafter affect all or any portion of the Premises or Landlord's  interest
therein and to all ground leases which may now or at any time  hereafter  affect
all or any portion of the  Premises  (any such  mortgage  or ground  lease being
herein  called  a "Superior  Mortgage")  and  each and  every  advance  made or
hereafter  to  be  made  under  a  Superior   Mortgage  and  to  all   renewals,
modifications,   replacements,   substitutions  and  extensions  of  a  Superior
Mortgage.  The foregoing  provisions for the subordination of this Lease and the
term and estate  hereby  granted to the holder of a Superior  Mortgage  shall be
self-operative  and no further  instrument  shall be required to effect any such
subordination;  provided,  however,  at any time and from time to time, upon not
less  than ten (10)  days'  prior  notice by  Landlord,  Tenant  shall  execute,
acknowledge and deliver to Landlord any and all reasonable  instruments that may
be  necessary or proper to effect such  subordination  or to confirm or evidence
the same. Provided that Tenant is not in default (beyond any period given Tenant
to cure such default) in the payment of Fixed Rent or Additional  Rent or in the
performance  of any of the  terms,  covenants,  or  conditions  of this Lease on
Tenant's part to be performed,  and subject to the terms and  conditions of this
Lease,  Tenant's  rights and  privileges  under this Lease,  or any  extensions,
expansions  or  renewals  shall not be  defeated  by any  holder  of a  Superior
Mortgage.  Landlord  agrees that if at any time  during the Term,  this Lease is
subject to a Superior  Mortgage,  Landlord shall use all  reasonable  efforts to
obtain from the holder of such Superior Mortgage, a non-disturbance agreement in
form and  substance  reasonably  satisfactory  to the  holder  of such  Superior
Mortgage.

<PAGE>

          17.2. If all or any portion of Landlord's estate in the Premises shall
be sold or conveyed to any person,  firm or corporation upon the exercise of any
remedy provided for in any Superior  Mortgage or by law or equity,  such person,
firm or corporation and each person, firm or corporation  thereafter  succeeding
to its interest in the  Premises (a) shall not be bound by any payment  prior to
such sale or conveyance  of Fixed Rent,  Additional  Rent or other  payments for
more than one month in advance (except prepayments in the nature of security for
the performance by Tenant of its obligations hereunder), and (b) shall be liable
for the keeping, observance and performance of the other covenants,  agreements,
terms,  provisions and conditions to be kept, observed and performed by Landlord
under this Lease.

          17.3. In the event of an act or omission by Landlord  which would give
Tenant  the  right to  terminate  this  Lease or to  claim a  partial,  total or
constructive  eviction,  Tenant  will not  exercise  any such right until it has
given written notice of such act or omission, or, in the case of the Premises or
any part  thereof  becoming  untenantable  as the result of damage  from fire or
other casualty,  written notice of the occurrence of such damage,  to the holder
of any  Superior  Mortgage  whose name and address  shall  previously  have been
furnished to Tenant in writing,  by delivering such notice of such act, omission
or damage  addressed to such holder at said address or if such holder  hereafter
furnishes  another  address  to Tenant in  writing  at the last  address of such
holder so furnished to Tenant,  and, unless otherwise  provided herein,  until a
reasonable  period for remedying such act, omission or damage shall have elapsed
following such giving of such notice,  provided any such holder, with reasonable
diligence,  shall,  following  the giving of such notice,  promptly (a) state in
writing its  intention  to remedy such act,  omission or damage and (b) commence
and  continue to remedy such act,  omission or damage or to cause the same to be
remedied.

          17.4. If, in connection  with obtaining  financing for the Premises or
refinancing any Superior Mortgage,  the prospective  lender requests  reasonable
modifications  to this  Lease as a  condition  precedent  to such  financing  or
refinancing,  then  Tenant  hereby  covenants  and  agrees  not to  unreasonably
withhold,  delay or condition its consent to such  modifications,  provided such
modifications  do not increase the Fixed Rent or Additional  Rent, do not reduce
the length of the Term, do not  materially  and  adversely  affect the leasehold
interest  created  by this Lease or the  rights of Tenant  hereunder  and do not
materially  and adversely  affect the manner in which  Tenant's  operations  are
conducted at the Premises.

          18. Indemnification and Hold Harmless.

<PAGE>

          18.1. Tenant, on behalf of itself and any party holding by, through or
under  Tenant,  agrees to  indemnify  and hold  harmless  Landlord,  its agents,
contractors, employees, in the following manner:

               (a) against  any default  under this Lease by Tenant or any party
holding by,  through or under Tenant for any direct  damages,  costs,  claims or
liabilities,  including reasonable attorneys' fees, sustained by Landlord or any
party holding by, through or under Landlord as a result of such default;

               (b) against any and all claims,  damages, losses and liabilities,
including reasonable  attorneys' fees, whatsoever their nature, cause or origin,
excluding,  however, loss of profit, special, indirect or consequential damages,
attributable in any manner to the omission,  fault,  willful act,  negligence or
other misconduct of Tenant,  its agents,  contractors,  employees,  licensees or
invitees  arising out of the use and  occupancy of the  Premises by Tenant,  its
agents, contractors, employees, licensees or invitees;

               (c)  against  any and all  damage or injury to the  Premises,  to
Tenant, its agents, contractors, employees, licensees, or invitees except to the
extent same is attributable to the omission,  fault,  willful act, negligence or
other misconduct of Landlord, its agents, contractors,  employees,  licensees or
invitees;

               (d) Tenant hereby  absolutely  and  unconditionally  indemnifies,
defends and holds  Landlord  free and  harmless of, from and against any and all
claims,  costs,  expenses,  liabilities,   losses,  liens,  encumbrances,  fees,
damages, judgments,  penalties, causes of action and other charges of whatsoever
kind or nature (including, without limitation, attorneys' fees and disbursements
and the fees and  expenses of any  environmental  and  analytical  laboratories,
consultants and engineers) suffered or incurred by Landlord,  including the cost
of  any  required  or  necessary   repair,   removal,   remediation,   clean-up,
detoxification and any action required, necessary or otherwise taken prior to or
following  a transfer  of title to the  Premises  or any  portion  thereof,  and
arising from (i) the violation of any of the Environmental  Laws (as hereinafter
defined) by Tenant,  as same shall affect all or any part of the Premises,  (ii)
the release by Tenant of any Hazardous  Materials (as  hereinafter  defined) in,
on, under, the Premises or any part thereof and (iii) any Hazardous Activity (as
hereinafter defined) by Tenant at or in connection with the Premises or any part
thereof. The obligations of Tenant referred to in this Paragraph  (collectively,
the "Toxic Waste Obligations") shall continue  notwithstanding the satisfaction,
discharge, release, termination or cancellation of the Lease;

<PAGE>

               (e) Tenant  covenants  and agrees that the Premises  shall at all
times  hereafter be  maintained,  occupied,  operated and  maintained  in strict
compliance  with  all of the  Environmental  Laws.  Tenant  shall  at all  times
maintain in full force and effect all necessary permits, licenses, approvals and
other authorizations  required under the Environmental Laws for the Premises and
the use or intended use thereof.  Tenant shall  provide  Landlord with a copy of
any  request  for   information  or  any  inspection  of  the  Premises  by  any
Governmental  Authority  with  respect to any  Hazardous  Materials or Hazardous
Activity and a copy of any response to each such request or  inspection  and any
written  notice of any  pending  or  threatened  proceeding,  advice or  inquiry
concerning the Premises (or any portion  thereof) which relates to any Hazardous
Materials,  Hazardous  Activity,  or pollution or protection of the environment,
promptly  after  delivery  thereof.  Tenant shall,  promptly upon gaining notice
thereof,  notify  Landlord in writing of any release,  discharge or spill of any
Hazardous  Materials in, on, under or about the Premises or the existence of any
Hazardous Materials emanating from or passing through the Premises; and

               (f) For  purposes of this Article 18, the  following  terms shall
have the following meanings:

               (i)  "Environmental  Laws"  shall  mean all  present  and  future
federal, state and local environmental, health and safety laws, rules, statutes,
directives,   binding   interpretations,   binding   policies,   ordinances  and
regulations now or hereafter in effect and as same have been or may hereafter be
amended,  modified  or  supplemented,  from  time to  time,  including,  without
limitation, the Comprehensive Environmental Response, Compensation and Liability
Act of 1980 (42 U.S.C.  Section 9601, et seq.),  the Resource  Conservation  and
Recovery Act of 1976 (42 U.S.C.  Section 6901 et seq.), the Hazardous  Materials
Transportation Authority Act of 1994 (49 U.S.C. Section 5101 et seq.), the Water
Pollution Control Act (33 U.S.C.  Section 1251 et seq.), the Safe Drinking Water
Act (42 U.S.C.  Section 300h et seq.), the Clean Air Act (42 U.S.C. Section 1857
et seq.),  the Solid Waste  Disposal Act (42 U.S.C.  Section 6901 et seq.),  the
Toxic  Substances  Control Act (15 U.S.C.  Section 2601 et seq.),  the Emergency
Planning and  Community  Right-to-Know  Act of 1986 (42 U.S.C.  Section 11001 et
seq.),  the Radon Gas and Indoor  Air  Quality  Research  Act of 1986 (42 U.S.C.
Section 7401 note, et seq.), the Superfund Amendments and Reauthorization Act of
1986 (42 U.S.C. Section 11001 et seq.), the Pollution Prevention Act of 1990 (42
U.S.C.  Section 13101 et seq.) and the  counterparts of such statutes as enacted
by state and local  governments with jurisdiction over the Premises or Tenant or
any principal, partner, shareholder,  officer or director of Tenant, and any and
all rules and regulations  promulgated  under any and all of the  aforementioned
laws,  including but not limited to, the Industrial  Site Recovery Act (N.J.S.A.
13:1K-6 et. seq.) and the New Jersey Spill Act (N.J.S.A. 58:10-23.11 et. seq.)

<PAGE>

                    (ii) "Hazardous Materials" shall mean any substances defined
or identified as "hazardous  substances",  "hazardous  wastes",  "toxic wastes",
"toxic substances" or "pollutants" in any of the Environmental Laws,  including,
without limitation,  asbestos or asbestos-containing materials,  polychlorinated
biphenyls, fuel oil, petroleum, hazardous waste and any other hazardous or toxic
substances, contaminants, materials or pollutants.

                    (iii)   "Hazardous   Activity"   shall  mean  the  disposal,
generation,  handling,  manufacturing,   processing,   production,   refinement,
storage,  transfer,  transportation  and/or use of Hazardous  Materials  in, on,
under  or  about  the   Premises  or  any  part  thereof  in  violation  of  any
Environmental Law.

          19. Landlord's Obligations.

          19.1.  Except as  otherwise  provided  in this Lease,  Landlord  shall
operate  and  maintain  the  Building  and its  grounds,  exclusive  of Tenant's
recreational  areas, if any, in first class condition and agrees to keep in good
order, condition and repair the roof, Common Areas, exterior walls and structure
of the  Building  and  its  grounds  (including  all  plumbing,  mechanical  and
electrical  systems),  all  insofar as they  affect the  Premises,  except  that
Landlord  shall in no event be  responsible  to Tenant for any  condition in the
Premises,  the grounds,  or the Building caused by any act or neglect of Tenant,
its  invitees or  contractors.  Landlord  shall not be  responsible  to make any
improvements or repairs to the Building or the grounds other than as provided in
this Section unless expressly provided otherwise in this Lease.

          19.2.  Landlord shall not be liable to Tenant for any  compensation or
reduction  of Fixed  Rent or  Additional  Rent by  reason  of  inconvenience  or
annoyance or for loss of business  arising from the necessity of Landlord or its
agents  entering the Premises for any of the purposes in this Lease  authorized,
or for repairing  the Premises or any portion of the Building.  In case Landlord
is prevented or delayed from making any repairs, alterations or improvements, or
furnishing any services or performing any other covenant or duty to be performed
on Landlord's  part, by reason of an  Unavoidable  Delay,  as defined in Section
38.2,  Landlord  shall not be liable to  Tenant  therefor,  nor shall  Tenant be
entitled to any  abatement  or reduction  of rent by reason  thereof  unless and
until Tenant's  occupancy is thus  substantially  impaired for a period of sixty
(60) days,  nor shall the same give rise to a claim in Tenant's  favor that such
failure constitutes actual or constructive,  total or partial, eviction from the
Premises.  If Tenant's  occupancy  is  substantially  impaired for more than one
hundred and eighty (180) days, then Tenant may elect to terminate this Lease.

          19.3.  Landlord  represents that, to the best of its knowledge,  which
knowledge is based  solely upon the  findings set forth in that certain  Phase I
Environmental Site Assessment dated October,  1997,  prepared by ENSR Consulting
and  Engineering,   referenced  as  Report  Number  4738-014-E01,  no  Hazardous
Materials  or wastes  have been  used,  treated  or  stored on the  Premises  in
violation of any  Environmental  Laws.  Landlord  hereby agrees to indemnify and
hold harmless  Tenant and its  shareholders,  directors,  officers and employees
from and against any and all claims, damages, losses and liabilities,  including
reasonable  attorneys  fees,  arising  from any use,  treatment  or  storage  of
Hazardous  Materials  on the  Property  prior  to the  commencement  date of the
Existing  Lease.  Notwithstanding  anything to the  contrary  contained  in this
Section  19.3,  in no event  shall  Landlord  be  deemed  to be in breach of the
representation  contained herein, or have an obligation to indemnify Tenant, for
any  Hazardous  Materials  or  wastes  placed on the  Property  by  Tenant,  its
employees, agents, contractors and invitees (other than Landlord, its employees,
agents, contractors and invitees).

          19.4.  Landlord  or its agents  shall not be liable for any loss of or
damage to any  property  of Tenant  by  theft,  nor for any  injury or damage to
persons or property  resulting  from any cause of whatsoever  nature;  nor shall
Landlord or its agents be liable for any such damage  caused by other tenants of
the Building or persons,  in, upon or about the Premises or caused by operations
in construction of any private, public or quasi-public work. The foregoing shall
not limit Landlord's obligations as set forth herein, including to provide quiet
enjoyment, to fund improvements,  to provide environmental indemnity and to make
Common Area and system improvements.

          20. Cumulative Remedies.

          20.1.  The rights  given to  Landlord  herein are in  addition  to any
rights that may be given to Landlord by any statute or otherwise.

          21. Advances by Landlord.

          21.1. If Tenant shall fail to perform any term,  covenant or agreement
contained  herein to be  performed  by Tenant,  upon  thirty  (30) days  advance
written  notice to Tenant,  Landlord  may elect to make  advances to perform the
same or to cause the same to be  performed,  in which event  Tenant shall pay to
Landlord all such sums reasonably  advanced by Landlord,  as Additional Rent, on
the date on which the next installment of Fixed Rent is due hereunder  following
delivery by Landlord of an invoice therefor.  All such sums advanced by Landlord

<PAGE>

shall accrue interest commencing on the date of Landlord's advance at the higher
of 12% per annum, or the then prime rate of Citibank,  N.A.  announced  publicly
from its New York City Office (the "Prime Rate") but in no event higher than the
highest rate of interest permitted by law computed from the date of each advance
to the date such sums are paid to  Landlord.  Anything  to the  contrary  herein
notwithstanding,  any such advances made by Landlord shall not be or be deemed a
waiver of any  default  on the part of Tenant in the  observance  of the  terms,
covenants  and  agreements  under  this Lease or of any  rights or  remedies  of
Landlord upon any such default.

          22. No Waiver by Landlord.

          22.1.  The  failure of  Landlord  to insist in any  instance on strict
performance  of any  covenant or  condition  hereof,  or to exercise  any option
herein contained, shall not be construed as a waiver of such covenant, condition
or option in any other instance.  Unless  otherwise  expressly  provided herein,
this Lease cannot be changed or terminated except in writing.

          23. Landlord's Right to Exhibit the Premises.

          23.1.  During the last  twelve  (12) months of the term of this Lease,
Landlord or its agents or  designees  may have  admission to the Premises at all
reasonable  hours and upon advance notice for the purpose of exhibiting the same
to prospective lessees of all or any part of the Building.

          24. No Acceptance of Surrender.

          24.1  No act or  thing  done  by  Landlord  or  Landlord's  agents  or
employees during the Term of this Lease shall be deemed to accept a surrender of
the  Premises  by Tenant and a  termination  of this  Lease,  or shall be valid,
unless in writing, signed by Landlord.

          25. Quiet Enjoyment.

          25.1.  If and so long as Tenant pays the Fixed Rent,  Additional  Rent
and all other sums agreed to be paid by Tenant under this Lease and promptly and
faithfully  performs and observes the terms,  covenants,  and agreements in this
Lease provided to be performed and observed by Tenant, Tenant quietly shall have
and enjoy the Premises.

          26. Estoppel Certificates.

          26.1. Within ten (10) days after receipt of request  therefor,  either
party will certify to the other and to any party named by the other  party,  (a)

<PAGE>

that as of the date of such certification,  whether or not this Lease is in full
force and effect; (b) that, to certifying party's best knowledge,  neither party
to this  Lease is in default  in  keeping,  observing  or  performing  any term,
covenant, agreement, provision, condition or limitation contained in this Lease,
and  whether  or  not  to  the  best   knowledge  of  the  person   making  such
certification, any event has occurred which with the passage of time, the giving
of notice,  or both would  constitute  a default  hereunder  and, if in default,
specifying  each such  default;  (c) the last day to which  the  Fixed  Rent and
Additional Rent payable under this Lease have been paid; (d) as to Tenant,  that
Tenant neither has nor claims to have any right of set-off or deduction  against
the  payment  of Fixed  Rent or  Additional  Rent,  or if a right of  set-off or
deduction is alleged,  specifying the nature and extent  thereof;  and (e) as to
Tenant, any other information reasonably requested by Landlord.

          27. Parking.

          27.1.  Tenant will be provided  with  parking in  accordance  with the
Building  Plans.  Landlord  shall provide  Tenant with no less than 3.8 cars per
1,000  rentable  square feet of Tenant's  office  space.  No other tenant of the
Building  shall have a right to a greater  ratio of parking  space per  rentable
square feet.

          28. Notices.

          28.1.  Any and all notices,  consents,  approvals,  requests and other
communications  (collectively, "notices") required to be given or served by the
terms and provisions of this Lease,  either by Landlord to Tenant,  or by Tenant
to Landlord,  shall be in writing and signed by the party giving the notice,  or
by a duly authorized  officer or  representative of a corporate party, and shall
be deemed to have been delivered  when  postmarked and delivered by hand or sent
by certified or  registered  mail,  return  receipt  requested or by a reputable
overnight courier service,  proper postage prepaid and addressed to the party to
be  notified.  Notice on behalf of either party shall be addressed to that party
at the address set forth below, or to such other address as that party hereafter
shall furnish in writing to the other party:

         To Landlord:

                  Ms. Debra Kloper
                  Route 10 Joint Venture
                  c/o MONY Real Estate
                           Investment Management
                  1740 Broadway
                  New York, New York  10019

<PAGE>

         with a copy to:

                  Robert A. Klausner, Esq.
                  Shanley & Fisher, P.C.
                  131 Madison Avenue
                  Morristown, New Jersey 07962-1979

         with a copy to:

                  Brad Fenlon
                  Edward S. Gordon Co., Inc.
                  Park 80 West, Plaza One
                  Saddle Brook, New Jersey  07663

         To Tenant:

                  Dialogic Corporation
                  1515 Route 10
                  Parsippany, New Jersey  07054
                  Attention:  President


         with a copy to:

                  Dialogic Corporation
                  1515 Route 10
                  Parsippany, New Jersey 07054
                  Attention:  General Counsel and Real Estate and
                  Facilities Manager

          29. Bind and Inure.

          29.1.  The terms,  covenants  and  conditions  contained in this Lease
shall bind and inure to the benefit of the successors and assigns of the parties
with the same effect as if mentioned in each instance  where a party is named or
referred  to,  except that no violation  of the  provisions  of Article 12 shall
operate to vest any rights in any successor or assignee of Tenant.

          29.2.  Nothing  contained in this Lease shall be deemed to confer upon
any tenant, or anyone claiming under or through any tenant,  any right to insist
upon, or to enforce against Landlord or Tenant, the performance or observance by
Tenant  of its  obligations  hereunder.  Landlord  shall  enforce  the Rules and
Regulations against all tenants of the Building.

          30. Waiver of Trial by Jury.

          30.1.  Landlord  and Tenant  hereby waive trial by jury in any action,
proceeding  or  counterclaim  brought by either  against the other on any matter
whatsoever arising out of or in any way connected with this Lease.

<PAGE>

          31. Brokerage Fees.

          31.1. Each party  represents that there was no broker(s)  instrumental
in consummating  this Lease except Edward S. Gordon Company ("ESG").  Each party
agrees to hold the other harmless from and against any and all claims or demands
for brokerage  commissions arising out of or in connection with the execution of
this Lease based on conversations or negotiations with such party on the part of
any broker,  other than ESG,  whose fees shall be paid by Landlord in accordance
with separate agreements between such broker and Landlord.

          32. Execution.

          32.1. This Lease may be executed in counterparts,  each of which, when
taken together, shall constitute one and the same agreement.

          33. Recordation of Lease.

          33.1. In no event shall Tenant have the right to record this Lease and
any such  recording  shall  constitute an Event of Default.  Landlord and Tenant
shall  record  a  memorandum  of this  Lease in form  and  substance  reasonable
satisfactory to both parties.

          34. Surrender.

          34.1. On the last day of the Term, or upon any earlier  termination of
this Lease, or upon any reentry by Landlord upon the Premises,  Tenant shall, at
its own expense,  quit and  surrender the Premises to Landlord  broom clean,  in
good order,  condition and repair except for ordinary  wear,  tear and damage by
fire or other insured casualty,  together with all improvements  which have been
made  upon  the  Premises  (except  as  otherwise  provided  for in this  Lease,
including,  but not limited to, in Sections 6 and 7 hereof). Tenant shall remove
from the Premises and the Building all of Tenant's furniture, trade fixtures and
equipment and all personal property and personal effects of all persons claiming
through or under  Tenant,  except as previously  agreed by Landlord,  and Tenant
shall pay the cost of  repairing  all damage to the  Premises  and the  Building
occasioned  by such  removal  and  shall  deliver  all keys  and  pass  cards to
Landlord.   Notwithstanding   anything  to  the   contrary   contained  in  this
Section 34.1,  at the end of the term of this Lease,  Tenant  shall not have the
obligation to remove from the Premises raised  flooring,  staircases,  vaults or
the improvements in the engineering offices.

<PAGE>

          34.2.  If the Premises are not  surrendered  at the  expiration of the
Term, Tenant shall indemnify  Landlord against loss or liability  resulting from
delay by Tenant in so  surrendering  the Premises,  including any claims made by
any  succeeding  Tenant  founded on such  delay.  If the  Premises  shall not be
surrendered  upon the  termination  of this Lease,  unless  otherwise  agreed by
Landlord and Tenant,  Tenant  shall be deemed to be occupying  the Premises as a
Tenant  from  month-to-month,  subject to all the terms and  provisions  of this
Lease insofar as the same are applicable to month-to-month tenancy, at a monthly
rental equal to twice the sum of: (i) the monthly installments of Fixed Rent and
Additional  Rent,  and (ii) the  Monthly  Tax  Payment for the last month of the
Term.

          34.3.  Tenant's  obligations  under this  Article  shall  survive  the
Expiration Date or sooner termination of this Lease.

          35. Access: Change in Facilities.

          35.1.  Landlord reserves the right, at any time, without incurring any
liability to Tenant therefor, to make such changes in or to the Building and the
fixtures  and  equipment  of  the  Building,   as  well  as  in  the  entrances,
passageways, halls, doors, doorways, corridors,  elevators,  escalators, stairs,
toilets  and other  public  parts of the  Building,  as it may  reasonably  deem
necessary  or  desirable,  provided  any such  change  does not  materially  and
adversely affect Tenant's access to or use of the Premises.
 
          35.2. Tenant shall permit Landlord to install, use and maintain pipes,
ducts and conduits within or through the Premises, or through the walls, columns
and ceilings  therein,  provided that the installation work is performed at such
times and by such methods as will not  unreasonably  interfere with Tenant's use
and occupancy of the Premises, or damage the appearance thereof.

          35.3.  Landlord or Landlord's agents shall have the right to enter the
Premises at all times for any of the purposes  specified in this Article and (a)
to examine the  Premises  or for the purpose of  performing  any  obligation  of
Landlord or exercising  any right or remedy  reserved to Landlord in this Lease;
(b) to exhibit the Premises to others;  (c) to make such  decorations,  repairs,
alterations,   improvements  or  additions,  or  to  perform  such  maintenance,
including  the  maintenance  of  all   air-conditioning,   elevator,   plumbing,
electrical,  sanitary,  mechanical  and other  service  or  utility  systems  as
Landlord may reasonably  deem necessary or desirable;  (d) to take all materials
into and upon the  Premises  that may be  required in  connection  with any such
decorations, repairs, alterations,  improvements,  additions or maintenance; and
(e) to alter,  renovate and decorate the Premises at any time during the Term if
Tenant shall have removed all or substantially all of Tenant's property from the

<PAGE>

Premises.  If practical,  under the  circumstances,  Landlord  shall give Tenant
notice and use its best efforts to give Tenant notice of such entry.

          35.4.  The exercise of any right  reserved to Landlord in this Article
shall not constitute an actual or constructive eviction, in whole or in part, or
entitle  Tenant to any abatement or  diminution or rent, or relieve  Tenant from
any of its  obligations  under this Lease, or impose any liability upon Landlord
or Landlord's agents.

          36. Integration of Agreement.

          36.1.  This Lease contains the entire  agreement of the parties hereto
and no representations,  inducements, promises or agreements, oral or otherwise,
between the parties not embodied herein, shall be of any force or effect. If any
term or provision of this Lease shall be invalid or unenforceable, the remaining
terms and provisions hereof shall not be affected thereby. If the application of
any term or provision of this Lease to any person or  circumstance  shall to any
extent  be  invalid  or  unenforceable  such  term  or  provision  shall  remain
applicable as to those persons or  circumstances  to which it shall be valid and
enforceable to the fullest extent permitted by law.

          37. [INTENTIONALLY DELETED]

          38. Unavoidable Delays.

          38.1.  In the  event  Landlord  or  Tenant  shall  be  delayed  in the
performance of any act or obligation  hereunder by reason of Unavoidable Delays,
then  performance  of such act or obligation  shall be excused for the period of
the delay, the period for the performance of any such act or obligation shall be
extended for a period equivalent to the period of such delay.
 
          38.2.  "Unavoidable  Delays"  shall mean any and all  delays  beyond a
party's reasonable control, including, without limitation,  delays caused by the
other party,  governmental  restrictions,  governmental  regulations,  controls,
undue  delays,  order  of  civil,  military  or  naval  authority,  governmental
preemption,  strikes, labor disputes, lock-outs, shortage of labor or materials,
inability to obtain materials or reasonable substitutes therefor, default of any
Building  or  construction  contractor  or  subcontracts,  Acts  of  God,  fire,
earthquake,  floods,  explosions,  actions  of  the  elements,  extreme  weather
conditions,  undue precipitation,  other weather conditions, enemy action, civil
commotion, riot or insurrection, fire or other unavoidable occurrence.

<PAGE>

          39. Rules and Regulations.

          39.1. Tenant and Tenant's servants,  employees,  agents,  visitors and
licensees shall observe faithfully and comply strictly with any reasonable Rules
and Regulations  for the Building as Landlord,  or Landlord's  agents,  may from
time to time adopt.  Notice of any such Rules or  Regulations  shall be given in
such manner as Landlord may elect.  Landlord shall take all reasonable  steps to
enforce such Rules and Regulations,  or terms,  covenants,  or conditions in any
other lease, as against all other tenants. Providing that Landlord is seeking to
enforce such Rules and  Regulations  through all  reasonable  efforts,  Landlord
shall not be liable to Tenant for violation of the same by any other tenant, its
servants,  employees, agents, visitors, or licensees. In the event any such Rule
or Regulation conflicts with any provision of this Lease, said provision of this
Lease shall control. The current Rules and Regulations in effect with respect to
the Building are attached hereto as Exhibit D and make a part hereof.

          40. Governing Law.

          40.1 This Lease shall be construed and enforced in accordance with the
Laws of the State of New Jersey.

          41. Landlord Liability.

          41.1.  Tenant agrees to look solely to Landlord's  estate and interest
in the Building and the Premises for the  satisfaction of any right or remedy of
Tenant for the  collection of a judgment (or other judicial  process)  requiring
the payment of money by Landlord, in the event of any liability of Landlord, and
not other  property  or  assets of  Landlord  and no  property  or assets of any
shareholder,  director,  officer or  principal  of Landlord  shall be subject to
levy, execution, attachment, or other enforcement procedure for the satisfaction
of Tenant's  remedies under or with respect to this Lease,  the  relationship of
Landlord and Tenant hereunder, or Tenant's use and occupancy of the Premises, or
any other liability of Landlord to Tenant.

          42. Signage.

          42.1 As long as Tenant  occupies 75% or more of the Building,  Tenant,
at  Tenant's  own cost and  expense,  shall have the right to apply for a permit
which allows Tenant to erect a sign  directly on the  Building.  Prior to making
any  application  to the applicable  Government  Authority for a permit for such
sign,  Landlord shall approve all plans regarding this sign and the applications
for  approval  to be  submitted  to the  Government  Authority.  Any  condition,
restriction  or  encumbrance  on the Property as a condition  of  obtaining  the

<PAGE>

permit to place such sign on the  Building  must be  approved by Landlord in its
sole and  absolute  discretion.  The  installation  of any sign  which  has been
properly  approved  by such  Government  Authority  shall,  at the  election  of
Landlord,  be  installed  by either  Landlord or Tenant.  If Landlord  elects to
install  such  sign,  Tenant  shall  reimburse  Landlord  for the  Costs of such
installation  within  thirty (30) days after receipt of the invoice of the Costs
therefor.  At the end of the term of this Lease,  Tenant  shall remove such sign
and if there is any damage to the Building  Tenant  shall,  at its sole cost and
expense,  repair such damage and restore the Building to the condition it was in
prior to the  installation  of such sign.  Landlord,  at its sole election,  may
elect to remove  such sign and repair any damage to the  Building  and,  if such
election is made by  Landlord,  Tenant shall  reimburse  Landlord for such Costs
within thirty (30) days after receipt of an invoice therefor.

          43. Arbitration.

          43.1  Except as provided in  Paragraphs  14.1(b) and (c),  the parties
hereto consent to arbitration of all disputes.

          43.2 The party desiring  arbitration  shall give notice to that effect
to the other party.  Within ten (10) days  thereafter,  the party not requesting
arbitration shall propose three (3) arbitrators and the other party shall select
one (1) of the three (3).

          43.3 The arbitrator shall be a fit and impartial person who shall have
had at  least 10 years  experience  in the  State  of New  Jersey  in a  calling
connected  with the matter of the  dispute  and shall have no prior,  present or
proposed future affiliation or connection with either party.

          43.4 The arbitration  shall be conducted to the extent consistent with
this  Article  in  accordance  with the then  prevailing  rules of the  American
Arbitration  Association (or any organization  successor thereto).  The decision
and  award  shall  be  rendered  by the  Arbitrator  within  30 days  after  the
appointment of the  Arbitrator.  Such decision and award shall be in writing and
shall be final and  conclusive  on the parties and  counterpart  copies  thereof
shall be delivered to each of the parties. In rendering such decision and award,
the  Arbitrator  shall  not  add  to,  subtract  from or  otherwise  modify  the
provisions  of this Lease.  Judgment may be had on the decision and award of the
Arbitrator so rendered in any court of competent jurisdiction.

          43.5 Each party shall pay the fees and expenses of the  Arbitrator and
all other expenses of the arbitration  (other than the fees and disbursements of
attorneys or witnesses for each party) shall be borne by the parties equally.

<PAGE>

          43.6  Notwithstanding  anything to the contrary  elsewhere provided in
this Lease,  if the subject  matter of a dispute which is provided in this Lease
to be determined by an arbitration  is (a) one which would  directly  affect the
liability  of an insurer  under any of the  policies  of  insurance  referred to
herein and the party  which is the insured  under such  policy so  notifies  the
other  party or (b) one  which  cannot be the  subject  of  arbitration  under a
Superior Mortgage, then unless such insurer or the holder of a Superior Mortgage
gives its written  consent to the  determination  of such matter by arbitration,
the dispute shall not be determined by arbitration and the parties shall be left
to such other remedies as they may have.

          44. Notice of Sale.

          44.1 (a) If during the Term  Landlord  has a bona fide  intent to sell
the Property, prior to marketing the Property Landlord shall deliver to Tenant a
proposal  containing the terms and conditions upon which Landlord would sell the
Property. Within thirty (30) days after the delivery of such proposal,  Landlord
and  Tenant  shall  meet and use good  faith  efforts  to enter into a letter of
intent  regarding  the sale of the Property to Tenant upon terms and  conditions
acceptable to both  parties.  If Landlord and Tenant fail to enter into a letter
of intent  within  such thirty  (30) day  period,  neither  party shall have any
obligations  to the other pursuant to this Section 44 and Landlord shall be free
to sell the  Property  at any time to any party  upon any  terms and  conditions
agreed to by Landlord,  whether or not such terms are consistent  with the terms
set forth in the proposal  delivered to Tenant.  Tenant expressly agrees that it
shall have no claim or cause of action  against  Landlord,  its  affiliates  and
their respective employees, agents, directors,  shareholders and officers in the
event a mutually acceptable letter of intent is not entered into,  regardless of
the reason,  and Tenant  expressly waives any claims or causes of actions it may
have against any such parties based upon any claimed breach of any obligation of
good faith, fair dealing or the like.

               (b)  Subsequent to Landlord and Tenant's  failure to enter into a
letter of intent,  Tenant shall,  within ten (10) days after demand  therefor by
Landlord,  confirm in writing that Tenant has no further  rights  regarding  the
purchase of the Property.

               (c)  Landlord  shall have no  obligation  to submit a proposal to
Tenant pursuant to the terms hereof,  if: (i) the named Tenant has assigned this
Lease or has at any  time  subleased,  in the  aggregate,  more  than 30% of the
Premises  to a party  which is not a patent or  subsidiary  of  Tenant;  or (ii)
Tenant shall be in default of any of its obligations  hereunder and such default

<PAGE>

shall not have been cured at the time of Landlord intends to commence  marketing
the Property for sale.

               (d) This  Section  shall not  preclude  preliminary  discussions,
either oral or written, between Landlord and any prospective purchaser regarding
the sale of the Property.

               (e) The  termination  of this  Lease  during  the Term shall also
terminate  Landlord's  obligations  pursuant  to the terms of this  Section  44.
Nothing  contained in this Section shall prevent  Landlord from  exercising  any
right or action  granted to or reserved  by Landlord in this Lease to  terminate
this Lease. Tenant's rights set forth in this Section 44 may not be severed from
this Lease or separately  sold,  assigned or transferred and is only exercisable
by Dialogic Corporation.

               (f) The  provisions  of this Section  shall only be in full force
and effect as long as Dialogic Corporation has not failed to exercise its rights
under this Section  44.1 on any prior  occasion,  and The Mutual Life  Insurance
Company of New York, or an affiliate  thereof (other than as provided for in the
immediately succeeding sentence) is the Landlord. The provisions of this Section
shall not be applicable to or binding upon any subsequent owner of the Property,
including,  but not limited to, an investment fund, joint venture,  partnership,
real  estate  investment  trust or any other  entity in which  The  Mutual  Life
Insurance Company of New York retains an interest.


          IN WITNESS  WHEREOF,  the parties  have  hereunto  set their hands and
seals as of the dat e first written above.

                                  THE MUTUAL LIFE INSURANCE COMPANY OF NEW YORK
                                  Landlord

                                  By: /s/___________________
                                      Name:
                                      Title:


                                  DIALOGIC CORPORATION
                                  Tenant

                                  By: /s/____________________
                                      Name:
                                      Title:


<PAGE>

                                  OFFICE LEASE

                                 1515 ROUTE TEN

                             PARSIPPANY, NEW JERSEY


                                  Lease Summary

Landlord:                 The Mutual Life Insurance Company of New York

Landlord's Address:       1740 Broadway, New York, NY 10019

Tenant:                   Dialogic Corporation

Tenant's Address:         1515 Route 10, Parsippany, NJ 07054

Tenant's Space:           Total - 67,000 square feet

Annual Fixed Rent:        Approximately 67,000 square feet office

                          Fixed Rent         Monthly           Rent Per
Office: Lease Years        Per Year        Installment       Square Foot

Years 1-2                     $                 $               $23.50*
Years 3-4                     $                 $               $25.00*
Years 5-6                     $                 $               $26.50*
Years 7-8                     $                 $               $28.00*
Years 9 - Expiration          $                 $               $29.50*
Date



* Plus  Tenant's  electric,  in the event the Lease does not encumber the entire
Building, pursuant to Section 4.13.

ELECTRICITY  RENT:  Tenant to pay all Tenant's  Electric  which will be directly
metered

LEASE TERM COMMENCEMENT DATE: _____

LEASE TERM EXPIRATION DATE: _____


BASE  OPERATING  EXPENSE  YEAR:  Shall  be the 12  month  period  following  the
Commencement Date.

BASE TAX YEAR:  Shall mean an amount equal to the product of (a) the real estate
tax  rate in  effect  for the  year in  which  the  Premises  are  substantially

<PAGE>

completed in  accordance  with  Section  6.5, and (b) the assessed  value of the
Building as of the date the Building is fully  assessed as a completed and fully
occupied Building.  If the Building is not fully assessed by the last day of the
year in which the Premises is  substantially  completed,  Landlord  shall make a
reasonable  determination  of the  Base  Taxes,  which  determination  shall  be
adjusted  when  the  Building  is  fully  assessed  by  the  appropriate  taxing
authority.

OPTION TO RENEW:  Two (2) five year  options  with Fixed Rent during each option
period being the greater of (i) the average of the Fixed Rent paid by Tenant for
the 5 preceding years  immediately  prior to the applicable  option period,  and
(ii) 95% of the fair market  rent,  as  determined  in  accordance  with Section
3.1(c).

RENTABLE  FLOOR AREA OF Tenant's  OFFICE SPACE:  67,000 square feet,  subject to
identification and measure by BOMA method

SECURITY DEPOSIT: None

TENANT'S PROPORTIONATE SHARE: 100%

TENANT'S SIC NUMBER:  7373

                                    EXHIBIT A

                                   DESCRIPTION


All that parcel of land located in the Township of Parsippany-Troy Hills and the
Township  of  Hanover,  County of Morris and State of New  Jersey  which is more
particularly described by the following legal metes and bounds description:

BEGINNING at a point in the newly dedicated Southwesterly sideline of New Jersey
State  Highway  Route 10, said point of beginning  being distant the following 2
courses  along  said  sideline,  as  measured  Southwesterly  from its  point of
intersection with the Southeasterly sideline of Johnson Road:

(a) along the Southwesterly sideline of New Jersey State Highway Route 10, South
48 degrees 33 minutes 20 seconds East 1473.83 feet to a jog therein;

(b)  partially  along the 2nd line of Lot 1.01  South 41  degrees  03 minutes 46
seconds West 20.00 feet to the beginning corner of the herein described premises
and running:

THENCE (1) along the newly dedicated  Southwesterly sideline of New Jersey State
Highway  Route 10,  South 48 degrees 33 minutes 20 seconds  East 931.5 feet to a
point;

<PAGE>

THENCE (2) along the Southeasterly line of the whole tract, of which this parcel
is a part, South 39 degrees 30 minutes 25 seconds West 852.23 feet to a point;

THENCE (3) along the Southwesterly line of the whole tract, of which this parcel
is a part, North 49 degrees 34 minutes 20 seconds West 505.89 feet to a point;

THENCE (4) still along same,  North 48 degrees 56 minutes 14 seconds West 235.11
feet to a point;

THENCE  (5) along the 4th line,  reversed,  of Lot  1.01,  North 41  degrees  03
minutes 46 seconds East 276.88 feet to a point;

THENCE (6) along the 3rd line,  reversed,  of said Lot 1.01, North 48 degrees 56
minutes 14 seconds West 213.78 feet to a point in the centerline of a heavy duty
road;

THENCE (7) along the centerline of said heavy duty road, and partially along the
2nd course,  reversed,  of Lot 1.01 North 41 degrees 03 minutes 46 seconds  East
586.89 feet to the place of BEGINNING.

KNOWN and  designated  as Lot 1.02 in Block 200 on the  Official  Tax Map of the
Township of  Parsippany-Troy  Hills,  County of Morris,  State of New Jersey and
Lots 13 and 14 in Block 303 on the  Official Tax Map of the Township of Hanover,
County of Morris and State of New Jersey.

                                    EXHIBIT B

                           BASE BUILDING IMPROVEMENTS

                                    EXHIBIT C

                    CLEANING AND ROUTINE MAINTENANCE SERVICE

[Cleaning and Routine Maintenance Service will be provided only for conventional
office space,  which space is reflected on the plans on the  following  page, as
follows:

NIGHTLY

          Empty and clean wastepaper  baskets,  ashtrays and other  receptacles.
Tenant shall  segregate all  recyclables  as required by law prior to Landlord's
removal of same.

          Sweep all  flooring,  vacuum clean or carpet sweep (as  required)  all
carpets and rugs. Sweep or dust stone, ceramic tile, marble,  terrazzo and other
unwaxed  flooring,  ex cluding  kitchen  area  (cleaning  of kitchen is Tenant's
responsibility).

<PAGE>

          Dust and wipe clean all office furniture and window sills.

          Wipe clean all water fountains and coolers.

          Dust all leather and leather-type furniture.

          Replace  plastic bags in  wastebaskets  when  necessary - cost per bag
charge to Tenant.

          Remove normal wastepaper and refuse;  cost of unusual waste removal to
be charged to Tenant.

          After cleaning,  all lights shall be turned off, windows closed, doors
locked and offices left in an orderly condition.

          Bathrooms cleaned and wastebaskets emptied.

          Hallways,  stairways,  elevators, the bridge and the lobby areas shall
be cleaned and vacuumed.

MONTHLY

          Dust all pictures,  frames,  charts, graphs, and similar wall hangings
not reached in nightly cleaning.

QUARTERLY

          Dust all venetian blinds.

ANNUALLY
 
          Dust  ceiling  surfaces  other than  acoustical  ceiling  material and
vacuum clean only acoustical materials and other similar surfaces, if necessary.

WINDOW CLEANING

          Wash all interior and exterior windows quarterly.

SIDEWALKS, ENTRANCES, ROADWAYS AND PARKING AREAS:

          To be kept free and clear of refuse, snow and ice.

AS REQUIRED BY Tenant

          Clean inside of all lighting fixtures and globes.


                                    EXHIBIT D

                              RULES AND REGULATIONS

1. The sidewalks, entrances, driveways, passages, courts, elevators, vestibules,
stairways,  corridors  or halls shall not be  obstructed  or  encumbered  by any
Tenant or used for any  purpose  other than for  ingress to and egress  from the
Premises  and for  delivery of such  merchandise  and  equipment in a prompt and
efficient  manner using elevators and equipment and  passageways  designated for
such  delivery  by  Landlord.  There  shall not be used in any space,  or in the
public  hall of the  Building,  either by any Tenant or any jobbers or others in
the delivery or receipt of merchandise,  any hand trucks,  except those equipped
with rubber tires and sideguards.

2. The water and wash  closets and plumbing  fixtures  shall not be used for any
purpose  other than those for which they were  designed  or  constructed  and no
sweepings,  rubbish, rags, acids or other substances shall be deposited therein,
and the  expense  of any  breakage,  stoppage,  or  damage  resulting  from  the
violation  of this  rule  shall be borne by the  Tenant  who,  or whose  agents,
employees or visitors, shall have caused it.

3. No carpet,  rug or other article shall be hung or shaken out of any window of
the Building; and no Tenant shall sweep or throw or permit to be swept or thrown
from the  Premises  any dirt or other  substances  into any of the  corridors or
halls,  elevators,  or out of the doors or windows or stairways of the Building,
and Tenant shall not use,  keep or permit to be used or kept any foul or noxious
gas or  substance  in the  Premises,  or  permit or suffer  the  Premises  to be
occupied or used in a manner  offensive  or  objectionable  to Landlord or other
occupants  of the  Building  by reason of noise,  odors  and/or  vibrations,  or
interfere in any way with other Tenants or those having  business  therein,  nor
shall any animals or birds be kept in or about the Building. Smoking or carrying
lighted cigars or cigarettes in the elevators of the Building is prohibited.

4. No awnings or other projections shall be attached to the outside walls of the
Building without the prior written consent of Landlord.

5. No sign,  advertisement,  notice  or  other  lettering  shall  be  exhibited,
inscribed,  painted or  affixed by any Tenant on any part of the  outside of the
Premises or the Building or on the inside of the Premises if the same is visible
from the outside of the Premises  without the prior written consent of Landlord,
except that the name of Tenant may appear on the  entrance  door of the Premises
and the directory in the lobby of the Building. In the event of the violation of
the foregoing by any Tenant, Landlord may remove same without any liability, and
may charge the expense  incurred by such  removal to Tenant or Tenant  violating

<PAGE>

this rule.  Interior  signs on doors and  directory  tablet shall be  inscribed,
painted or affixed for each  Tenant by  Landlord at the expense of such  Tenant,
and shall be of a size, color and style acceptable to Landlord.

6. No Tenant shall mark, paint, drill into, or in any way deface any part of the
Premises or the  Building.  No boring,  cutting or  stringing  of wires shall be
permitted,  except with the prior written  consent of Landlord,  and as Landlord
may direct.

7. No Tenant shall obtain for use upon the Premises ice,  drinking water,  towel
or other similar services,  or accept barbering or bootblacking  services in the
Premises,  except from persons  authorized  by Landlord,  and at hours and under
regulations  fixed by  Landlord.  Canvassing,  soliciting  and  peddling  in the
Building is  prohibited  and each Tenant shall  co-operate  to prevent the same.
Notwithstanding  the foregoing,  Tenant may maintain soda and juice machines and
water coolers in the Premises.

8. Landlord reserves the right to exclude from the Building between the hours of
6 P.M. and 8 A.M. and at all hours on Sundays and legal holidays all persons who
are not employees of Tenant.

9.  Landlord  shall have the right to prohibit  any  advertising  by any Tenant,
which, in Landlord's opinion,  tends to impair the reputation of the Building or
its  desirability  as a Building  for  offices,  and upon  written  notice  from
Landlord, Tenant shall refrain from or discontinue such advertising.

10.  Tenant  shall  not  bring  or  permit  to be  brought  or kept in or on the
Premises, any inflammable, combustible or explosive fluid, material, chemical or
substance,  or cause or permit any odors of cooking or other  processes,  or any
unusual  or  other  objectionable  odors  to  permeate  in or  emanate  from the
Premises.

11. If the Building  contains central air  conditioning  and ventilation  Tenant
agrees  to keep all  windows  closed  at all times and to abide by any rules and
regulations  issued by the  Landlord  with respect to such  services.  If Tenant
requires air  conditioning  or ventilation  after the usual hours,  Tenant shall
give notice in writing to the building  superintendent prior to 3:00 P.M. in the
case of services  required on weekdays,  and prior to 3:00 P.M. on the day prior
in the case of after hour service required on weekends or on holidays.

<PAGE>

                                  OFFICE LEASE


                                 1515 ROUTE TEN

                             PARSIPPANY, NEW JERSEY

                                     between

                  THE MUTUAL LIFE INSURANCE COMPANY OF NEW YORK
                                   (Landlord)

                                       and

                              DIALOGIC CORPORATION
                                    (Tenant)



                            Dated: September 30, 1998

<PAGE>

                                TABLE OF CONTENTS

ARTICLE                                                                  PAGE


Exhibit A                  Description
Exhibit B                  Base Building Improvements
Exhibit C                  Cleaning and Routine Maintenance Service
Exhibit D                  Rules and Regulations



                                 EXHIBIT 10.13

                              AMENDED AND RESTATED
                           1997 INCENTIVE BENEFIT PLAN
                                       OF
                              DIALOGIC CORPORATION
                                        
          Section 1. Rules of Interpretation; Definitions.

          As used in this Incentive  Benefit Plan, (i) the singular includes the
plural,  and the masculine gender includes the feminine and neuter genders,  and
vice versa,  as the context  requires;  and (ii) the word "person"  includes any
natural  person  and  any  corporation,  firm,  partnership  or  other  form  of
association.

          For purposes of this Incentive Benefit Plan, the following terms shall
have the following meanings:

          "Award Authority" means either the Selected Participants  Committee or
the General  Participants  Committee,  depending  upon the context in which such
term is used.  With respect to  Incentives  awarded or to be awarded to Selected
Participants,  the term "Award  Authority"  refers to the Selected  Participants
Committee.  With respect to Incentives  awarded or to be awarded to Participants
other than  Selected  Participants,  the term  "Award  Authority"  refers to the
General Participants Committee.

          "Award  Date" means the date on which an  Incentive  is awarded by the
Award Authority.

          "Benefit Administration Committee" shall mean a committee of the Board
consisting  solely  of  all  members  of  the  Compensation  Committee  who  are
Disinterested Persons.

          "Board" means the Board of Directors of the Company.

          "Cash Award" means a cash payment by the Company to a  Participant  as
additional compensation for that Participant's services to the Group.

          "Change in Control Event" has the meaning stated in Section 14 hereof.

          "Code" means the Internal  Revenue Code of 1986,  as it may be amended
from time to time.

          "Common Stock" means the Common Stock, no par value, of the Company.

          "Company" means Dialogic Corporation and any successor thereto.

          "Compensation  Committee" shall mean the Compensation Committee of the
Board, as it may be constituted from time to time.

          "Consultant"  shall mean any person who performs  consulting  services
for, or who serves as an advisor to, any member of the Group.

          "Director" means a member of the Board.

          "Disability"  means a  permanent  and total  disability  as defined in
Section 22 of the Code.

          "Disinterested  Person"  means a person who is an  "outside  director"
within  the  meaning of  Section  162(m) of the Code as  amended by the  Revenue
Reconciliation Act of 1993.

          "Election" has the meaning stated in Section 13.09(a) hereof.

          "Exercise Date" means the date on which the Company  receives a notice
of the exercise of an  Incentive,  which notice  meets the  requirements  of the
Plan.

          "Fair Market Value" has the meaning stated in Section 13.13 hereof.

          "General  Participants  Committee"  means a  committee  of one or more
members of the Board, none of whom need be a Disinterested  Person, to which the
Board has delegated  certain  authority to  administer  the Plan under Section 3
hereof.

          "Group" means the Company,  each "parent  corporation" of the Company,
and each "subsidiary  corporation" of the Company, as these terms are defined in
Sections 424(e) and 424(f), respectively, of the Code.

          "In Tandem" means that two  Incentives  are related to each other such
that the  number of shares  subject  to the first  Incentive  is  reduced by the
number of shares for which the second Incentive is exercised,  and the number of
shares  subject to the second  Incentive  is reduced by the number of shares for
which the first Incentive is exercised.

          "Incentive  Stock Option" means a stock option  intended to qualify as
an incentive stock option under Section 422 of the Code.

          "Incentives"  mean the economic  incentives listed in Section 5 hereof
that may be awarded under the Plan.

          "Named Executive Officer" shall mean (i) any Selected  Participant who
is named in any proxy  statement  of the  Company as either the chief  executive
officer of the  Company or as one of the five  highest  paid (in terms of salary
and  bonus)  executive  officers  of the  Company  and (ii) any  other  Selected
Participant  designated  as a  "Named  Executive  Officer"  by the  Compensation
Committee in a notice delivered by the  Compensation  Committee to the Secretary
of the Company.

          "Non-Statutory  Stock  Option"  means any Stock  Option  other than an
Incentive Stock Option.

          "Participant"  means any  part-time or full-time  employee of, and any
Consultant to, any member of the Group to whom an Incentive has been or is to be
awarded.

          "Performance  Stock Right" means a contingent  right to receive Shares
upon the achievement of certain performance objectives.

          "Plan" means this 1997 Incentive Benefit Plan of the Company.

          "Qualified  Person"  means a  Participant's  legal  guardian  or legal
representative  or a deceased  Participant's  executor,  administrator,  heir or
legatee  who  has a  legal  right  to or in  respect  of an  Incentive  of  that
Participant.

          "Restricted Stock Award" means the award of Shares by the Company to a
Participant at a price that may be below Fair Market Value,  or without  payment
to the Company,  but these Shares are subject to  restrictions on sale and other
transfer and are subject to forfeiture.

          "Retirement"  shall  have the  meaning  ascribed  to such  term in any
retirement  plan  adopted  by the  Board.  In the  absence  of  any  such  plan,
"Retirement" means (i) the voluntary  termination of employment by a Participant
who is  59-1/2  years  old or  older  unless,  prior to such  termination,  such
Participant  advises the  Company  that he intends to be employed on a full-time
basis by an  employer  that is not a member of the  Group or (ii) the  voluntary
termination of employment by any Participant if the Board  determines,  prior to
such termination, that such termination shall be deemed to be a "Retirement" for
purposes of the Plan.

          "SAR" means a stock  appreciation  right  relating to the Common Stock
and is a right to receive Shares,  cash or a combination thereof without payment
to the Company.

          "Securities  Exchange Act" means the Securities  Exchange Act of 1934,
as it may be amended from time to time.

          "Selected  Participant"  means (i) any person who (x) is identified as
an executive  officer of the Company in any Annual  Report on Form 10-K filed by
the Company  pursuant  to the  Securities  Exchange  Act or (y) has the title of
Executive Vice  President,  President or Chairman of the Board of the Company or
(z) has the title of Vice  President of the Company and reports  directly to the
President of the Company,  (ii) any person who, by virtue of his or her position
with the Company, is advised by counsel to the Company that he or she is subject
to Section 16 of the  Securities  Exchange Act,  (iii) any  Consultant  whom the
Special Participants  Committee determines should receive an Incentive under the
Plan and (iv) any other  part-time  or  full-time  employee of any member of the
Group whom the Special Participants Committee designates,  in a notice delivered
by the Special  Participants  Committee to the  Secretary  of the Company,  as a
"Selected Participant" for purposes of the Plan. A person who becomes a Selected
Participant  solely by virtue of clause (i) above  shall  cease to be a Selected
Participant  in the  event  that he or she  does  not  have  the  title  of Vice
President,  President  or Chairman of the Board of the Company and is advised by
counsel  to the  Company  that  he or she is  not an  executive  officer  of the
Company. A person who becomes a Selected  Participant solely by virtue of clause
(iv) above  shall  cease to be a Selected  Participant  when and if the  Special
Participants Committee delivers a notice to the Secretary of the Company stating
that such Participant is no longer to be treated as a Selected Participant.

          "Selected  Participants   Committee"  means  either  the  Compensation
Committee or the Benefit Administration Committee, depending upon the context in
which the term is used. All actions which this Plan contemplates be taken by the
Selected  Participants  Committee with respect to Named Executive Officers shall
be taken by the  Benefit  Administration  Committee  if there  are at least  two
Disinterested Persons on the Benefit  Administration  Committee at that time; in
such instances,  references to the Selected Participants  Committee herein shall
constitute references to the Benefit Administration Committee. All actions which
this Plan  contemplates  be taken by the Selected  Participants  Committee other
than with respect to Named Executive  Officers,  and all actions which this Plan
contemplates be taken by the Selected Participants  Committee when there are not
at least two  Disinterested  Persons on the  Benefit  Administration  Committee,
shall be taken by the Compensation Committee;  in such instances,  references to
the Selected  Participants  Committee herein shall constitute  references to the
Compensation  Committee.  All questions of interpretation as to whether the term
"Selected  Participants  Committee" refers to the Compensation  Committee or the
Benefit   Administration   Committee  shall  be  resolved  by  the  Compensation
Committee, whose determination shall be final and conclusive.

          "Share" means a share of Common Stock.

          "Stock Award" means an award of Shares by the Company to a Participant
on an unrestricted  basis as additional  compensation and without payment to the
Company.

          "Stock Option" means a stock option granted  pursuant to the Plan. Any
Stock Option which is not designated as an Incentive Stock Option at the time of
grant or which ceases to qualify as an  "incentive  stock option" under the Code
shall be deemed to be a Non-Statutory Stock Option for purposes of the Plan.

          "Tax Date" has the meaning stated in Section 13.09(a).

          "Unit of Phantom Stock" means a right to receive,  without  payment to
the Company, cash, dividends or a combination thereof.


          Section 2. Purpose.

          The  purpose of the Plan is to advance the  interests  of the Group by
furnishing Incentives designed to attract, retain and motivate employees and, in
circumstances  identified by the Special Participants Committee,  Consultants to
the Group.  Incentives may consist of opportunities to acquire Shares or cash or
both, as provided by the Plan.

          Section 3. Administration.

          3.01.  Administrative Body. The General  Participants  Committee shall
have authority to administer the Plan to the express extent  provided for in the
Plan.  Except to the extent  that the Plan  expressly  provides  for the General
Participants Committee to administer the Plan, the Plan shall be administered by
the Special Participants Committee.  Any interpretive question regarding whether
authority  to  administer  any  aspect  of the Plan is  vested  in the  Selected
Participants  Committee or the General Participants  Committee shall be resolved
by the Special  Participants  Committee,  whose determination shall be final and
conclusive.  From time to time, the Board shall  designate one or more Directors
who need not be  Disinterested  Directors  to serve on the General  Participants
Committee.

          3.02. Award Authority. The Selected Participants Committee shall serve
as the Award  Authority with respect to the Selected  Participants.  The General
Participants  Committee  shall serve as the Award  Authority with respect to all
part-time  and  full-time  employees  of each member of the Group other than any
such employees who are Selected Participants.  Subject to applicable law and the
terms of the Plan, the Award Authority shall have plenary authority to (a) award
Incentives under the Plan, (b) set the terms, conditions and restrictions of the
Incentives, their exercise and all related rights and (c) accelerate the date on
which a previously  granted  Incentive may be exercised.  Terms,  conditions and
restrictions  of Incentives may vary from  Participant  to Participant  and from
award to award.  Acceleration may be to any date, including the date on which an
Incentive is granted.

          3.03.  Authority of the Selected  Participants  Committee.  Subject to
applicable  law and the terms of the Plan, the Selected  Participants  Committee
shall  have  plenary  authority,  with  respect  to  Incentives  granted  to all
Participants, to (a) prescribe the form of agreements awarding and governing the
Incentives,  (b)  interpret the Plan,  (c)  establish  any rules or  regulations
relating  to the  Plan  and (d) make all  other  determinations  for the  proper
administration of the Plan. The Selected  Participants  Committee's decisions on
matters  relating to the Plan shall be final and  conclusive  on the Group,  all
part-time and full-time employees of, and all Consultants to, all members of the
Group, all Participants and their respective successors,  assigns,  transferees,
heirs and representatives.

          3.04  Limitations  on  the  Authority  of  the  General   Participants
Committee.  From time to time, the Selected Participants Committee shall deliver
to the General  Participants  Committee a memorandum  setting  forth the maximum
number  of  Shares  for  which  the  General  Participants  Committee  may award
Incentives  during a specified  period of time and setting forth the  guidelines
under which the General Participants  Committee may grant such Incentives during
such  period.  Such  memorandum  may be  amended  by the  Selected  Participants
Committee at any time.  Without the prior approval of the Selected  Participants
Committee,  the General Participants Committee shall not award Incentives in any
such period in excess of the applicable  maximum Share limit  established by the
Selected  Participants  Committee  and shall not  grant  Incentives  that do not
satisfy the  applicable  guidelines  established  by the  Selected  Participants
Committee.


          Section 4. Eligibility.

          4.01. Designation. All part-time and full-time employees of any member
of the Group,  including  officers and  directors who are part-time or full-time
employees of any member of the Group,  are eligible to receive  Incentives under
the Plan.  All  Consultants  of any member of the Group are  eligible to receive
Incentives  (other than Incentive  Stock Options) under the Plan.  Directors and
officers  who are not  employees  of any  member  of the  Group  and who are not
Consultants  to any  member of the Group may not  receive  Incentives  under the
Plan.

          4.02.  Participants.  The Award  Authority may consider any factors in
selecting  Participants  and in  determining  the  types  and  amounts  of their
Incentives,  including,  but not  limited  to, (a) the  current  or  anticipated
financial  condition of the Group,  (b) the  contributions by the Participant to
the Group and (c) the other compensation provided to the Participant.  The Award
Authority's  award of an Incentive to a person in any year shall not require the
Award Authority to award any Incentive to that person in any other year.
 

          Section 5. Types of  Incentives.  Incentives may be granted in any one
or any  combination  of the following  forms:  (a)  Non-Statutory  Stock Options
(Section 7); (b) Incentive Stock Options  (Section 7); (c) SARs (Section 8); (d)
Units of  Phantom  Stock  (Section  9);  (e)  Stock  Awards  (Section  10);  (f)
Restricted Stock Awards (Section 10); (g) Performance Stock Rights (Section 11);
and (h) Cash Awards (Section 12).


          Section 6. Shares Subject to the Plan.

          6.01. Number of Shares. Subject to Section 13.08 hereof, the aggregate
number of Shares  which may be issued under the Plan shall not exceed the sum of
2,000,000  Shares plus the "Unused  Shares".  For purposes of the plan, the term
"Unused  Shares" shall mean the lesser of (i) 400,000 Shares and (ii) the number
of Shares that would be available for the award of benefits  under the Company's
1988 Incentive  Compensation  Plan (the "1988 Plan") on December 5, 1998 but for
the fact that the 1988 Plan expires  (with respect to the grant of new incentive
awards)  on such  date,  without  giving  effect  to  lapses,  cancellations  or
forfeitures  that occur  subsequent  to such date.  For purposes of this Section
6.01,  each Unit of Phantom Stock shall  constitute a single  Share.  Subject to
Section 13.08 hereof, the maximum number of Shares which may be issued under the
Plan pursuant to Incentive Stock Options is 2,000,000 Shares.

          6.02.  Expiration and cancellation.  If an Incentive granted under the
Plan expires,  is terminated,  is forfeited or is otherwise  canceled before the
related Shares are issued,  that Incentive and the related Shares, SARs or Units
of Phantom Sock shall not apply  toward the limits  provided in Section 6.01 and
shall be available again for the grant of Incentives under the Plan.

          6.03.  Maintenance  of stock.  Shares of Common Stock issued under the
Plan shall be authorized and unissued  shares or shares of treasury  stock.  The
Company shall always  reserve a number of Shares at least equal to the number of
Shares which remain issuable pursuant to the Plan.


          Section 7. Stock  Options.  Each Stock Option  granted  under the Plan
shall be subject to the following terms and conditions:

          7.01.  Price.  The option price per share shall be  determined  by the
Award Authority; provided, however, that the option price shall not be less than
75% of the Fair Market  Value on the Award Date of the Common  Stock  subject to
the option.  Any option  granted  subsequent to February 27, 1997 at an exercise
price that is expressly  designated at the time of grant as an exercise price of
less than 100% of the Fair  Market  Value on the Award Date of the Common  Stock
subject to the option shall not vest sooner than three years from the Award Date
(and shall not have its  vesting  accelerated  to a date that is less than three
years  from the  Award  Date)  unless  such  vesting  arises  as a result of the
optionee's satisfying performance criteria approved by the Committee.

          7.02.  Number.  The number of Shares subject to Stock Options shall be
determined by the Award Authority; provided, however, that the maximum number of
Shares covered by Stock Options  granted to any Participant in any calendar year
shall not exceed  1,000,000  Shares  (subject to adjustment  pursuant to Section
13.08 hereof).

          7.03. Duration and time for exercise. The Award Date of a Stock Option
shall be the date  specified  by the Award  Authority,  provided  that that date
shall not be prior to the date on which the Stock  Option is  actually  granted.
With respect to an employee that is granted a Stock Option pursuant to the Plan,
the Award Date (i.e., the date of grant) of such Stock Option shall not be prior
to the date on which such  employee  commences  employment  with a member of the
Group.  With respect to a Consultant  that is granted a Stock Option pursuant to
the Plan,  the Award Date (i.e.,  the date of grant) of such Stock  Option shall
not be prior to the date on which such Consultant commences providing consulting
or  advisory  services to a member of the Group.  The term of each Stock  Option
shall be  determined  by the Award  Authority,  but shall not exceed eight years
from the date of  grant.  In the  event  that the term of a Stock  Option is not
specified in the applicable grant agreement, the term of such Stock Option shall
be eight years from the Award Date.  Each Stock Option shall become  exercisable
at such time or times and in such amount or amounts  during its term as shall be
determined by the Award Authority at the time of grant; provided,  however, that
the Special Participants  Committee may accelerate the exercisability of a Stock
Option  granted to any  Participant  at any time.  In the event that the vesting
schedule of a Stock Option is not specified in the applicable  grant  agreement,
such Stock Option shall vest in four equal  annual 25%  installments  commencing
one year after the date of grant and  continuing  thereafter on each of the next
three annual  anniversaries of the date of grant.  Unless otherwise specified by
the Award Authority, once a Stock Option becomes exercisable, whether in full or
in part,  it shall  remain  so  exercisable  until its  expiration,  forfeiture,
termination or cancellation.

          7.04. Exercise. A Stock Option may be exercised,  in whole or in part,
by giving written notice to the Company (Attention:  Chief Financial Officer) at
its principal office or to such transfer agent as the Company may designate. The
notice shall identify the Incentive being exercised and shall contain such other
information  and  terms  as  the  Company  may  require.  The  notice  shall  be
accompanied  by full payment of the purchase  price for the Shares (a) in United
States  dollars  in  cash  or by  check,  (b) at  the  discretion  of the  Award
Authority,  by delivery of previously acquired Shares having a Fair Market Value
on the date of exercise equal to the exercise price of the Stock Option,  or (c)
at the discretion of the Award Authority, by a combination of (a) and (b) above.
As soon as practicable  after receipt of the written  notice,  the Company shall
deliver to the person exercising the Stock Option one or more stock certificates
representing the Shares.

          7.05. Incentive Stock Options. Notwithstanding anything in the Plan to
the contrary,  the following  additional  provisions shall apply to the grant of
Incentive Stock Options:

          (a) the  aggregate  Fair Market  Value on the Award Date of the Shares
with respect to which Incentive Stock Options are exercisable for the first time
by any Participant during any calendar year (under all plans of the Group) shall
not exceed $100,000;

          (b) all Incentive  Stock Options must be granted on or before February
26, 2007;

          (c) unless exercised sooner,  each Incentive Stock Option shall expire
no later than 8 years after the Award Date for that Incentive Stock Option;

          (d) the option price for each Incentive Stock Option shall be not less
than 100% of the Fair  Market  Value of the Shares  subject to the option on the
Award Date of that Incentive Stock Option;

          (e) only  part-time or full-time  employees of any member of the Group
are eligible to receive an Incentive Stock Option;

          (f) no  Incentive  Stock Option shall be granted to any person who, at
the time that option is granted,  owns (within the meaning of Section 422 of the
Code)  stock  having  more than 10% of the total  combined  voting  power of all
classes of stock of the  Company  or any member of the Group,  unless the option
price is equal to at least 110% of the Fair Market  Value of the Shares  subject
to the  option on the Award Date and the  option is not  exercisable  later than
five years from the Award Date;

          (g)  Incentive  Stock  Options  may be  issued  alone  or  with  other
Incentives  (including  Non-Statutory  Stock  Options)  but may not be issued In
Tandem with Non-Statutory Stock Options; and

          (h) each Incentive Stock Option agreement referred to in Section 13.06
shall  contain  or be deemed to  contain  all  provisions  required  in order to
qualify those Stock Options as incentive  stock options under Section 422 of the
Code,  and the  provisions  of the Plan shall be  interpreted  and  construed to
effect such treatment under that Section of the Code.


          Section 8.  Stock  Appreciation  Rights.  An SAR may be granted by the
Award  Authority (i) together  with any Stock Option  granted under the Plan, in
which case it shall be  exercisable  with and in addition to that Stock  Option,
(ii) In Tandem with any Stock Option granted under the Plan (except with respect
to an Incentive  Stock Option if the grant of the SAR would cause the  Incentive
Stock  Option not to qualify  as such  under  Section  422 of the Code) or (iii)
alone,  without  reference to any Stock Option.  Each SAR granted under the Plan
shall be subject to the following terms and conditions:

          8.01. Number.  Subject to Section 13.15 hereof,  each SAR shall relate
to such number of Shares as shall be determined by the Award Authority.

          8.02.  Duration and Time for Exercise.  The Award Date of an SAR shall
be the date specified by the Award Authority,  provided that that date shall not
be before  the date on which the SAR is  actually  granted.  With  respect to an
employee that is granted an SAR pursuant to the Plan, the Award Date (i.e.,  the
date of grant) of such SAR shall not be prior to the date on which such employee
commences  employment  with a member of the Group.  With respect to a Consultant
that is granted an SAR pursuant to the Plan,  the Award Date (i.e.,  the date of
grant)  of such SAR  shall  not be prior  to the date on which  such  Consultant
commences  providing  consulting or advisory  services to a member of the Group.
The term of each SAR shall be determined by the Award  Authority,  but shall not
exceed eight years from the date of grant.  In the event that the term of an SAR
is not specified in the applicable grant  agreement,  the term of such SAR shall
be eight years from the Award Date.  Each SAR shall become  exercisable  at such
time or  times  and in such  amount  or  amounts  during  its  term as  shall be
determined by the Award Authority at the time of grant; provided,  however, that
the Selected Participants  Committee may accelerate the exercisability of an SAR
granted to any Participant at any time. Unless otherwise  specified by the Award
Authority, once an SAR becomes exercisable, whether in full or in part, it shall
remain  so  exercisable  until  its  expiration,   forfeiture,   termination  or
cancellation.

          8.03.  Exercise.  An SAR may be  exercised,  in whole  or in part,  by
giving written notice to the Company (Attention: Chief Financial Officer) at its
principal office or to such transfer agent as the Company shall  designate.  The
notice shall identify the Incentive being exercised and shall contain such other
information and terms as the Special Participants Committee may require. As soon
as practicable after receipt of the written notice, the Company shall deliver to
the person  exercising  the SAR stock  certificates  for the  Shares,  cash or a
combination thereof to which that person is entitled under Section 8.04 hereof.

          8.04.  Payment.  When the  Award  Authority  awards  an SAR,  it shall
specify  whether the SAR is exercisable  (a) in United States dollars in cash or
by check,  (b) for Shares only, (c) for any combination  thereof as specified by
the person  exercising the SAR at the time of the exercise of the SAR or (d) for
any  combination  thereof as specified by the Award Authority at the time of the
exercise of the SAR. The following provisions apply with respect to the exercise
of an SAR under the Plan:

          (a) If an SAR is exercisable for Shares, the number of Shares issuable
upon the exercise of the SAR shall be determined by dividing:

               (i)  the  number  of  Shares  for  which  the  SAR  is  exercised
     multiplied by the amount of the  appreciation  per Share (for this purpose,
     the  "appreciation  per Share" shall be the amount by which the Fair Market
     Value of a Share on the  Exercise  Date  exceeds  (A) in the case of an SAR
     granted In Tandem with a Stock  Option,  the  exercise  price or (B) in the
     case of an SAR granted alone without reference to a Stock Option,  the Fair
     Market Value of a Share on the Award Date of the SAR); by

               (ii) the Fair Market Value of a Share on the Exercise Date.

          (b) If an SAR is exercisable for cash, the amount of cash payable upon
exercise shall be equal to the Fair Market Value of a Share on the Exercise Date
multiplied  by the  number  of Shares  that  would be  issuable  if the SAR were
exercised for Shares.

          (c) No fractional  Shares shall be issued upon the exercise of an SAR.
Instead,  the holder of the SAR shall  receive a cash payment  equal to the Fair
Market  Value  of the  fractional  share.  Notwithstanding  the  foregoing,  the
Selected  Participants  Committee may decide to pay cash to Participants covered
by Section 16 of the  Securities  Exchange Act only if the Company,  the Special
Participants Committee and the Participant comply with all applicable provisions
of such Section 16 and the related regulations.


          Section 9. Phantom Stock. Each Unit of Phantom Stock granted under the
Plan shall be subject to the following terms and conditions:

          9.01. Number. Each Unit of Phantom Stock shall relate to one Share.

          9.02.  Duration  and Time for  Exercise.  The Award  Date of a Unit of
Phantom Stock shall be the date specified by the Award Authority,  provided that
that date  shall not be before  the date on which the Unit of  Phantom  Stock is
actually granted.  With respect to an employee that is granted a Unit of Phantom
Stock  pursuant to the Plan,  the Award Date  (i.e.,  the date of grant) of such
Unit of  Phantom  Stock  shall not be prior to the date on which  such  employee
commences  employment  with a member of the Group.  With respect to a Consultant
that is granted a Unit of Phantom  Stock  pursuant  to the Plan,  the Award Date
(i.e.,  the date of grant) of such Unit of Phantom  Stock  shall not be prior to
the date on which such  Consultant  commences  providing  consulting or advisory
services to a member of the Group.  The term of each Unit of Phantom Stock shall
be determined by the Award Authority,  but shall not exceed eight years from the
date of grant.  In the  event  that the term of a Unit of  Phantom  Stock is not
specified in the applicable  grant  agreement,  the term of such Unit of Phantom
Stock shall be eight years from the Award Date. Each Unit of Phantom Stock shall
become  exercisable  at such time or times and in such amount or amounts  during
its term as shall be  determined  by the Award  Authority  at the time of grant;
provided,  however, that the Selected Participants  Committee may accelerate the
exercisability  of a Unit  of  Phantom  Stock  at  any  time.  Unless  otherwise
specified  by the  Award  Authority,  once  a  Unit  of  Phantom  Stock  becomes
exercisable,  whether in full or in part, it shall remain so  exercisable  until
its expiration, forfeiture, termination or cancellation.

          9.03. Exercise. A Unit of Phantom Stock may be exercised,  in whole or
in part, by giving written  notice to the Company  (Attention:  Chief  Financial
Officer) at its principal  office or to such transfer agent as the Company shall
designate.  The notice shall  identify the Incentive  being  exercised and shall
contain such other information and terms as the Board shall require.  As soon as
practicable  after receipt of the written  notice,  the Company shall deliver to
the person exercising the Unit of Phantom Stock the amount of cash to which that
person is entitled under Section 9.04.

          9.04. Payment.

          (a) When the Award Authority awards a Unit of Phantom Stock, the Award
Authority  shall  specify  whether that unit is entitled to the  dividends  that
would  accrue to a single  Share.  If any Unit of Phantom  Stock is so entitled,
dividends shall be paid on the unit as if the unit were a Share.

          (b) The  amount of cash  payable  upon  exercise  of a Unit of Phantom
Stock shall be the excess of Fair Market Value of one Share on the Exercise Date
over the Fair Market Value of one Share on the Award Date.


          Section 10. Stock Awards and Restricted Stock Awards. Stock Awards and
Restricted Stock Awards shall be subject to the following terms and conditions:

          10.01.  Number  of  Shares.  The  number of Shares to be issued by the
Company to a Participant  under a Stock Award or a Restricted  Stock Award shall
be  determined  by the Award  Authority;  provided,  however,  that no more than
500,000 Shares may be issued under all Stock Awards and Restricted  Stock Awards
(independent  of the  number of Shares  covered  by  Performance  Stock  Rights)
granted pursuant to the Plan.

          10.02. Sale Price. The Approval  Authority shall determine the prices,
if any, at which Shares issued under a Restricted Stock Award shall be sold to a
Participant,  which prices may vary from time to time and among Participants and
which may be below  the Fair  Market  Value of  Shares at the date of sale.  The
Shares of  Restricted  Stock  awarded  at a price must be paid for (a) in United
States  Dollars  in  cash  or by  check,  (b) at  the  discretion  of the  Award
Authority,  by  delivery  of  Shares  having a Fair  Market  Value  equal on the
purchase  date to the  purchase  price  or (c) at the  discretion  of the  Award
Authority, by a combination of (a) and (b) above.

          10.03. Duration. Shares of restricted stock that are to be sold to the
Participant must be fully paid for by the Participant  within the time specified
by the Award Authority. If payment is not timely made, the Incentive shall lapse
and terminate.

          10.04.  Delivery. As soon as practicable after granting a Stock Award,
the Company shall deliver to the Participant one or more stock  certificates for
the Shares  awarded.  As soon as practicable  after granting a Restricted  Stock
Award  and,  if the  restricted  stock is to be sold to the  Participant,  after
payment of the full purchase price,  the Company shall deliver one or more stock
certificates for the Shares as provided in Section 10.07.

          10.05. Restrictions.  All Shares issued under a Restricted Stock Award
shall be subject to such  restrictions  as the Award  Authority  may  determine,
including, but not limited to, any or all of the following:

          (a) a prohibition against the sale, transfer,  pledge,  encumbrance or
other  disposition of the Shares.  Such a prohibition shall lapse at the time or
times that the Award Authority may determine (whether in annual or more frequent
installments,  at the  time  of  the  death,  disability  or  retirement  of the
Participant, or otherwise); and

          (b) a  requirement  that the  Participant  forfeit  (or in the case of
Shares sold to a  Participant,  resell to the Company at the same price at which
the  Participant  purchased  the Shares) all or any part of those  Shares if the
Participant's  employment is terminated  during any period in which those Shares
are subject to restrictions.

          10.06 Limitation.  Notwithstanding the foregoing,  all Shares issuable
pursuant  to a  Restricted  Stock  Award shall be subject to at least one of the
following conditions:

          (a) the  Participant  shall be  required  to forfeit the Shares if the
Participant  ceases to be employed by a member of the Group  within  three years
after the date of grant; or

          (b) the  Participant  shall be  required  to forfeit the Shares if the
Participant fails to satisfy performance criteria approved by the Committee.

          10.07. Escrow.  Shares of Common Stock issued under a Restricted Stock
Award shall be registered in the name of the Participant and deposited, together
with a stock power  endorsed in blank,  in escrow with the  Company.  Each stock
certificate for those Shares shall bear a legend in substantially  the following
form:

          "The  transfer  of this  certificate  and the  shares of Common  Stock
          represented  by it is subject to the terms and  conditions  (including
          conditions of forfeiture) contained in the 1997 Incentive Benefit Plan
          of Dialogic  Corporation (the "Company") and an agreement entered into
          between the registered  owner and the Company.  Copies of the Plan and
          agreement are on file in the office of the Secretary of the Company."

          10.08. End of restrictions. After the restrictions have expired, stock
certificates evidencing the Shares shall be delivered to the Participant free of
such legend. The Shares, however, shall remain subject to all other restrictions
stated in the Plan or in the agreement providing for that Incentive.

          10.09.  Stockholder.  Subject to the terms and  conditions of the Plan
and any other  restrictions  determined by the Award  Authority and set forth in
the agreement for the  Restricted  Stock Award,  each  Participant  who receives
Shares  under a  Restricted  Stock  Award  shall  have  all of the  rights  of a
stockholder  during any period in which the Shares are subject to  restrictions,
including,  but not  limited  to,  the right to vote the  Shares.  Dividends  on
restricted Shares paid in cash or property shall be held in escrow together with
the restricted  Shares and shall not be released to the  Participant  unless and
until  the  restrictions  lapse or the  conditions  to  release  are  satisfied.
Dividends payable in Shares or other stock, however, shall be paid in restricted
Shares subject to all provisions of this Section 10.


          Section 11.  Performance Stock Rights.  The award of Performance Stock
Rights  shall be  subject to such terms and  conditions  as the Award  Authority
considers appropriate. Each award of a Performance Stock Right shall include the
performance  objectives to be achieved by the Group or the  Participant  or both
the Group and the Participant.  The number of Shares to be issued by the Company
to a  Participant  under a  Performance  Stock Right shall be  determined by the
Award  Authority;  provided,  however,  that no more than 500,000  Shares may be
issued under all Performance  Stock Rights  (independent of the number of Shares
covered by Stock Awards and  Restricted  Stock Awards)  granted  pursuant to the
Plan. If the  performance  objectives  are achieved,  the  Participant  shall be
issued a number  of  Shares  equal to the  number of  Performance  Stock  Rights
granted to that Participant.  In the event that the performance objectives for a
particular  Performance Share Unit relate solely to continued employment,  three
years  from the  date of grant of such  Unit  shall  be the  minimum  period  of
continued employment required in order to satisfy such performance objectives.


          Section  12.  Cash  Awards.  The  amount  of any Cash  Award  shall be
determined  by the Award  Authority.  Cash Awards shall be subject to such other
terms and conditions as the Award Authority may determine.


          Section 13. General.

          13.01.  Effective  Date;  Effectiveness.  The Plan was  adopted by the
Board on February 27, 1997. Any Incentive  granted pursuant to the Plan prior to
the date on which the  shareholders  of the  Company  approve  the Plan shall be
granted  subject to the condition that the  shareholders  of the Company approve
the Plan on or before  February  26,  1998.  This  Plan  shall be void and of no
effect if such shareholder approval is not given on or before February 26, 1998.

          13.02. Duration. Unless the Plan is terminated earlier, the Plan shall
terminate  on February  26,  2007.  No  Incentive or other rights under the Plan
shall  be  granted  thereafter.  The  Board,  without  further  approval  of the
Company's  stockholders,  may at any time before that date  terminate or suspend
the Plan.  After  termination of the Plan, no further  Incentives may be granted
under the Plan.  Incentives  granted before any termination or suspension of the
Plan shall  continue  to be  exercisable  in  accordance  with the terms of such
Incentives.

          13.03.  Limited  Transferability of Incentives.  Except as provided in
the balance of this Section  13.03,  no Option  granted under this Plan shall be
transferable  otherwise  than by will or the  law of  descent  and  distribution
following the Optionee's  death, and during the lifetime of the Optionee,  shall
be  exercisable  only  by him or for  his  benefit  by his  attorney  in fact or
guardian.  An Incentive  other than an Incentive Stock Option may, in connection
with a Participant's  estate plan and with the approval of the Award  Authority,
be assigned in whole or in part during the Participant's lifetime to one or more
members  of  the  Participant's  immediate  family  or  to a  trust  established
exclusively for one or more such family members.  The assigned  portion may only
be exercised by the person or persons who acquire a proprietary  interest in the
Incentive  pursuant to the  assignment.  The terms  applicable  to the  assigned
portion shall be the same as those in effect for the Incentive immediately prior
to such  assignment  and  shall be set  forth in such  documents  issued  to the
assignee as the Award Authority may deem appropriate.

          13.04.  Effects of Termination of Employment or Death.  Each agreement
providing for an Incentive  shall include such provisions as the Award Authority
may  determine for the exercise and  termination  of the  Incentive,  the rights
thereunder and the forfeiture thereof, in each case if the Participant ceases to
be an employee  of, or a  Consultant  to, the Company or any member of the Group
for any reason;  provided,  however,  that  notwithstanding any provision to the
contrary herein or in any Incentive  Agreement,  the provisions of Section 13.05
shall govern in the event that the employment of an  employee-holder  of a Stock
Option or SAR  terminates  as a result of death,  Disability or Retirement or in
the event that the employment of an  employee-holder of a Stock Option or SAR is
terminated  by  the  Company  either  with  "cause"  or  without   "cause"  (any
determination of "cause" to be made by the Special Participants Committee and to
be binding and conclusive for purposes of the Plan) or is terminated voluntarily
by such  employee-holder.  Subject to Section  13.05(e)  hereof,  an  employee's
employment  shall be  deemed  to have  terminated  when the  Company  gives  the
employee  notice of  termination  or receives a notice of  termination  from the
employee,  irrespective of the subsequent payment of salary,  wages or severance
or other benefits.  The Special  Participants  Committee's  determination  as to
whether a leave of absence  (whether  or not with  approval of the Company or by
reason  of  military  or  governmental   service)  constitutes   termination  of
employment for purposes of the Plan shall be binding and conclusive.

          13.05  Termination  of Employment as a Result of Death,  Disability or
Retirement;  Other Terminations of Employment.  Notwithstanding any provision to
the contrary  herein or in any Incentive  Agreement,  the  following  provisions
shall   apply   with   respect   to  Stock   Options   and   SARs   held  by  an
employee-Participant  at the termination of such  Participant's  employment with
members of the Group in the event that such Participant's  employment terminates
as a result  of  death,  Disability  or  Retirement  or in the  event  that such
Participant's  employment is  terminated  by the Company  either with "cause" or
without  "cause"  (any  determination  of  "cause"  to be  made  by the  Special
Participants  Committee  and to be binding and  conclusive  for  purposes of the
Plan):

               (a) If such  employment  terminates  as a result  of  death,  the
               Participant's  Stock  Options  and  SARs  shall be  deemed  fully
               exercisable as of the date of death and such Participant's estate
               shall have the right to exercise the Participant's  Stock Options
               and SARs for a period  ending on the  earlier  of the  expiration
               dates of such Stock Options and SARs or three years from the date
               of termination of employment.

               (b) If such employment terminates as a result of Disability,  the
               Participant's  Stock  Options  and  SARs  shall be  deemed  fully
               exercisable as of the date that the  Participant is notified that
               he will not longer be  employed  by any members of the Group (the
               "Notification Date") and such Participant shall have the right to
               exercise  his Stock  Options and SARs for a period  ending on the
               earlier of the expiration dates of such Stock Options and SARs or
               three  years  from the  Notification  Date,  provided  that if an
               Incentive  Stock  Option  is  exercised   beyond  the  last  date
               consistent  with treatment of such option as an "incentive  stock
               option"  under  the  Code,  such  option  shall be deemed to be a
               Non-Statutory Stock Option hereunder.

               (c) If such employment terminates as a result of Retirement,  the
               Participant  shall have the right to exercise  his Stock  Options
               and SARs for a period  ending on the  earlier  of the  expiration
               dates of such Stock Options and SARs or three years from the date
               of termination  of  employment,  provided that unless the Special
               Participants  Committee  determines  otherwise (i.e.,  determines
               that  some  or all of a  retiring  Participant's  unvested  Stock
               Options be deemed  fully  vested)  with  respect to a  particular
               Retirement,  such Stock Options and SARs shall be  exercisable by
               the Participant  after Retirement only to the extent  exercisable
               on the date of  termination of employment and provided that if an
               Incentive  Stock  Option  is  exercised   beyond  the  last  date
               consistent  with treatment of such option as an "incentive  stock
               option"  under  the  Code,  such  option  shall be deemed to be a
               Non-Statutory Stock Option hereunder.
 
               (d) If such  employment  is  terminated  by the  Company  without
               "cause",  the  Participant  shall have the right to exercise  his
               Stock  Options and SARs for a period ending on the earlier of the
               expiration  dates of such Stock  Options and SARs or three months
               from the date of termination  of  employment,  provided that such
               Stock Options and SARs shall be  exercisable  by the  Participant
               after termination of employment only to the extent exercisable on
               the date of termination of employment.

               (e) If such employment is terminated by the Company with "cause",
               all  Stock  Options  and  SARs  held  by such  Participant  shall
               terminate as of the date on which such employment terminates.

               (f) In the  event  that  an  employee  continues  to  serve  as a
               director  or  Consultant  of any  member of the Group  after such
               employee  ceases to be employed  by any member of the Group,  the
               employee  shall,  for purposes of the Plan, be deemed to continue
               in the employment of the Company until such time that such person
               ceases to serve as a director  of,  Consultant  to or employee of
               any  member of the Group;  provided  that if an  Incentive  Stock
               Option  is  exercised   beyond  the  last  date  consistent  with
               treatment of such option as an "incentive stock option" under the
               Code,  such option  shall be deemed to be a  Non-Statutory  Stock
               Option hereunder.

Unless  otherwise  provided by the Award  Authority in the applicable  Incentive
Agreement  or at  the  time  of  termination  of  employment,  if a  Participant
voluntarily  terminates his or her employment with all members of the Group, the
Participant  shall have the right to exercise  his Stock  Options and SARs for a
period ending on the earlier of the  expiration  dates of such Stock Options and
SARs or three months from the date of termination  of employment,  provided that
such  Stock  Options  and SARs shall be  exercisable  by the  Participant  after
termination  of  employment  only  to the  extent  exercisable  on the  date  of
termination of employment. The Award Authority may provide at any time before or
within  one  week  after  such  voluntary   termination  of  employment  that  a
Participant's  right to exercise  Stock Options or SARs in such  instance  shall
terminate as of the date of termination of employment.

          13.06.  Incentive  Agreements.  Except in the case of Cash Awards, the
terms of each Incentive shall be stated in an agreement  between the Company and
the Participant in a form approved by the Special  Participants  Committee.  The
Participant must execute and deliver the agreement to the Company as a condition
to the effectiveness of the Incentive. The Award Authority may also determine to
enter into  agreements  with  holders of options  (a) to  reclassify  or convert
certain  outstanding  options,  within the terms of the Plan, as Incentive Stock
Options or as  Non-Statutory  Stock Options or (b) to eliminate  SARs for all or
part  of  such  options  and any  other  previously  issued  options.  All  such
agreements  may  contain  such  terms  and  conditions  as the  Award  Authority
considers advisable that are not inconsistent with the Plan, including,  but not
limited  to,  transfer  restrictions,   rights  of  first  refusal,   forfeiture
provisions,  representations and warranties of the Participant and provisions to
ensure compliance with all applicable laws, regulations and rules as provided in
Section 13.07 hereof.

          13.07.  Compliance  with Law. The Company may  determine,  in its sole
discretion,  that it is necessary or desirable to list,  register or qualify (or
to update any listing,  registration or  qualification  of) any Incentive or the
Shares  issuable or issued  under any  Incentive  or the Plan on any  securities
exchange or under any federal or state  securities  law, or to obtain consent or
approval of any governmental  body as a condition of, or in connection with, the
award of any Incentive,  the issuance of Shares under any Incentive or the Plan,
or the removal of any restrictions  imposed on such Shares. If the Company makes
such a determination, the Incentive shall not be awarded or the Shares shall not
be issued or the restrictions shall not be removed,  as applicable,  in whole or
in part, unless and until the listing, registration,  qualification,  consent or
approval  shall  have been  effected  or  obtained  free of any  conditions  not
acceptable  to the Company.  The  Company's  obligation  to sell or issue Shares
under an  Incentive  is  subject  to  compliance  with all  applicable  laws and
regulations.  The Special Participants Committee, in its sole discretion,  shall
determine  whether  the  sale and  issue of  Shares  is in  compliance  with all
applicable laws and regulations.

          13.08.  Adjustment.  If the  outstanding  Shares of  Common  Stock are
increased or decreased  or changed into or exchanged  for a different  number or
kind of  securities  of the  Company or of another  corporation,  by reason of a
reorganization, merger, consolidation, recapitalization, reclassification, stock
split,  combination of securities or dividend  payable in corporate  securities,
then an appropriate  adjustment  shall be made by the Board in the number,  kind
and/or price of Shares for which  Incentives  may be granted  under the Plan. In
addition,  the Special Participants  Committee shall make appropriate adjustment
in the number,  kind and/or price of Shares as to which outstanding  Incentives,
or portions thereof then unexercised,  shall be exercisable. In the event of any
such  adjustment,  the  exercise  price of any  Stock  Option,  the  performance
objectives,  restrictions or other terms and conditions of any Incentive and the
Shares  issuable  under any  Incentive  shall be  adjusted  as and to the extent
appropriate,  in the sole and absolute  discretion  of the Special  Participants
Committee,  to provide each  Participant  with  substantially  the same relative
rights before and after such adjustment to the extent practical.

          13.09. Withholding.

          (a) The  Company  shall have the right to withhold  from any  payments
made  under the Plan or to  collect  as a  condition  to any  award,  payment or
issuance of Shares under the Plan any taxes  required to be withheld by Federal,
state or local law. Subject to Section  13.09(b) hereof,  whenever a Participant
is  required  to pay to the  Company an amount  required  to be  withheld  under
applicable tax laws in connection  with a distribution of Shares or cash or upon
exercise of a Stock Option or SAR, the  Participant  may satisfy this obligation
in whole or in part by electing (the  "Election")  to have the Company  withhold
from the  distribution  that number of Shares having a value equal to the amount
required to be withheld.  The value of the Shares to be withheld  shall be based
on the Fair Market Value of the Shares on the date on which the amount of tax to
be withheld is determined  ("Tax  Date").  Each Election must be made before the
Tax Date.

          (b) The Special  Participants  Committee may  disapprove any Election,
may  suspend or  terminate  the right to make  Elections,  or may  provide  with
respect to any Incentive  that the right to make an Election  shall not apply to
that Incentive. An Election is irrevocable.

          (c) If a Participant is subject to the  restrictions  of Section 16 of
the  Securities  Exchange  Act,  then an  Election  is subject to the  following
additional restrictions:

               (i) No  Election  shall be  effective  for a Tax Date that occurs
     within six months of the Award Date of the Incentive; and

               (ii) The Election must be made six months before the Tax Date.

          13.10. No right to a Continued  Relationship.  No employee-Participant
under the Plan shall have any right to  continue in the employ of the Company or
any  member of the  Group for any  period  of time  because  of such  employee's
participation in the Plan. No  Consultant-Participant  under the Plan shall have
any right to continue as a consultant or advisor to the Company or any member of
the Group for any period of time because of such  Consultant's  participation in
the Plan.


          13.11.  No Right as  Stockholder.  No Participant or Qualified  Person
shall have the rights of a stockholder  with respect to the Shares covered by an
Incentive unless a stock certificate is issued to that person for the Shares. No
adjustment  shall be made for cash  dividends  or  similar  rights for which the
record date is before the date on which such stock certificate is issued.

          13.12.  Amendment of the Plan.  The Board may amend the Plan from time
to time in such  respects  as the  Board  deems  advisable.  No such  amendment,
however,  shall  change  or impair  an  Incentive  without  the  consent  of the
Participant or Qualified Person holding that Incentive.

          13.13.  Definition  of Fair Market  Value.  Whenever  the "Fair Market
Value" of the Common  Stock is to be  determined  as of a  particular  date (the
"Valuation  Date")  for  purposes  of the Plan,  "Fair  Market  Value"  shall be
determined as follows:

          (a) If the Common  Stock is quoted on the Nasdaq  Stock  Market on the
Valuation  Date,  "Fair Market Value" shall equal the average of (i) the highest
sales price of the Common  Stock as reported on the Nasdaq  Stock  Market on the
Valuation  Date and (ii) the lowest  sales price of the Common Stock as reported
on the Nasdaq Stock Market on the Valuation Date.

          (b) If the  Common  Stock  is then  traded  on a  national  securities
exchange,  "Fair Market  Value shall equal the average of (i) the highest  sales
price of the Common Stock as reported on such exchange on the Valuation Date and
(ii) the lowest sales price of the Common Stock as reported on such  exchange on
the Valuation Date.

          (c) If the Common Stock is not publicly  traded at the time that "Fair
Market Value" is to be determined  under the Plan,  "Fair Market Value" shall be
determined in good faith by the Special Participants Committee.

          13.14.  Repurchase,  Replacement  and  Substitution  of Options.  Upon
approval of the Board,  the Company may  repurchase a previously  granted  Stock
Option from a Participant by mutual  agreement before that Stock Option has been
exercised  upon such terms and  conditions  as the Company  and the  Participant
shall agree,  provided  that the  purchase  price per Share shall not exceed the
amount by which the Fair Market Value of the Common Stock  subject to the option
on the date of purchase  exceeds the exercise  price.  The Award  Authority  may
agree to the  cancellation  of  Stock  Options  in  order to make a  Participant
eligible for the grant of a  replacement  Stock Option at a lower price than the
option to be canceled.  In the event of a merger or  consolidation  in which the
Company is the effective survivor, or the acquisition by the Company of property
or stock of an acquired  corporation or any  reorganization or other transaction
qualifying  under  Section 424 of the Code,  the Company  may  substitute  Stock
Options  under the Plan for options  under a plan of the  acquired  corporation,
provided  that (a) the excess of the  aggregate  Fair Market Value of the Shares
subject to the option  immediately  after the  substitution  over the  aggregate
option  price of such  Shares is not more than the  similar  excess  immediately
before such  substitution,  and (b) the new option does not give the Participant
or Qualified Person holding that Stock Option additional benefits.  In the event
that (x) the Company should adopt a plan of reorganization pursuant to which (i)
it shall merge into,  consolidate with, or sell  substantially all of its assets
to,  any other  corporation  or entity or (ii) any other  corporation  or entity
shall merge into the Company in a transaction  in which the Company shall not be
the effective survivor, then the Company shall have the right to provide for all
Incentives  granted  hereunder  to be  assumed  by the  acquiring  or  surviving
corporation on such terms as the Selected Participants Committee shall determine
to be appropriate.

          13.15. Fractional and Minimum Shares; Maximum Shares In no event shall
a fraction of a Share be purchased or issued under the Plan without  approval of
the Special  Participants  Committee.  The Special  Participants  Committee  may
specify a minimum  number of Shares for which each Stock Option  and/or SAR must
be exercised, which number, however, shall not be more than 100.

          13.16  Application of Funds. The proceeds received by the Company from
the sale of Shares under the Plan shall be used for general corporate purposes.

          13.17 Other  Incentives and Plans.  Nothing in the Plan shall prohibit
any member of the Group from establishing other employee incentives and plans.

          13.18 Governing Law. The validity and  construction of the Plan and of
each agreement evidencing  Incentives shall be governed by the laws of the State
of New Jersey, excluding the conflict-of-laws principles thereof.


          14. Change in Control. In the event that a "Senior Level Optionee" (as
defined  herein)  experiences a "Termination  Event" (as defined  herein) within
twelve months after a "Change in Control Event" (as defined herein) occurs,  all
Stock Options granted  hereunder which are held by such Senior Level Optionee on
the date that such Termination  Event occurs (the  "Termination  Date") shall be
deemed to be fully vested  hereunder as of such Termination Date for purposes of
determining  the  exerciseability  of  such  Stock  Options  on and  after  such
Termination Date and all restrictions on Restricted  Shares shall be lifted.  In
addition,  if a  Change  In  Control  Event  results  in the  criteria  for  the
elimination of  restrictions  on Restricted  Shares being no longer  measurable,
such  restrictions  shall be deemed to be immediately  lifted.  However,  if the
Board of Directors  determines  that the  acceleration  of vesting of Restricted
Shares for any  individual  recipient of  Restricted  Shares  would  prevent the
Company from engaging in a proposed pooling  transaction  resulting in Change of
Control,  such acceleration of vesting shall not take place. For purposes of the
Plan, the term "Change in Control Event" shall mean any of the following events:

          (a) the acquisition by any one person,  or more than one person acting
as a group, of ownership of stock of the Company, other than any person or group
of persons  who held such total  voting  power on April 10, 1994 (the day before
the Company commenced its initial public offering),  possessing 50.1% or more of
the total voting power of the capital stock of the Company;

          (b)  the  approval  by the  stockholders  of the  Company  of (i)  any
consolidation or merger of the Company,  in which the holders of voting stock of
the Company  immediately  before the consolidation or merger will not own 50% or
more of the voting shares of the continuing or surviving corporation immediately
after such  consolidation or merger, or (ii) any sale, lease,  exchange or other
transfer  (in one  transaction  or series  of  related  transactions)  of all or
substantially all of the assets of the Company; or

          (c) a  change  of 50%  (rounded  to the  next  whole  percent)  in the
membership  of the Board  within a  12-month  period,  unless the  election,  or
nomination for election by stockholders, of each new director within such period
was  approved  by the vote of 80%  (rounded  to the next  whole  person)  of the
directors  then  still in office  who were in office  at the  beginning  of such
12-month period.
 
          For  purposes of this  Section 14, a Senior  Level  Optionee  shall be
deemed to have experienced a "Termination  Event" if, and only if, within twelve
months  after a  "Change  in  Control  Event"  occurs,  (i)  such  Senior  Level
Optionee's  employment with the Company or any subsidiary  thereof is terminated
by the  Company  or such  subsidiary  without  cause,  (ii)  such  Senior  Level
Optionee's base salary (excluding bonuses and/or commissions) is reduced by more
than 10% per annum or (iii) the duties and responsibilities of such Senior Level
Optionee are substantially reduced without such Senior Level Optionee's consent.

          For purposes of Section 14, the term "Senior  Level  Optionee"  shall
mean the Company's Chairman of the Board, the Company's Chief Executive Officer,
the Company's  Chief  Financial  Officer,  each  Executive Vice President of the
Company,  the Company's  General  Counsel and each Vice President of the Company
who, on the date on which a Change in Control Event occurs,  reports directly to
the Company's  Chief Executive  Officer  pursuant to the Company's then existing
table of organization.  Such definition shall also include each of the following
individuals:

                  John Alfieri                       John Landau
                  Geno Alissi                        Steve Leyland
                  Russ Dauer                         Gary Marks
                  Larry Fromm                        John Taylor
                  Stephane Goubau                    Dean Trumbull
                  Robert Heymann                     Steve Krupinski


                                   EXHIBIT 10.14


                  COMMON STOCK AND WARRANT PURCHASE AGREEMENT

          This COMMON STOCK AND WARRANT PURCHASE AGREEMENT (this"Agreement") is
made as of the 1st day of March, 1999 between Dialogic Corporation, a New Jersey
corporation (the "Company"), and Microsoft Corporation, a Washington corporation
(the "Purchaser").

                                    RECITALS

          WHEREAS,  the  Company  desires  to  sell  to the  Purchaser,  and the
Purchaser  desires to purchase from the Company,  shares of the Company"s Common
Stock, no par value (the "Common Stock"), and a warrant to purchase Common Stock
(the "Warrant") on the terms and conditions set forth in this Agreement.

          NOW, THEREFORE,  in consideration of the foregoing recital, the mutual
promises hereinafter set forth, and other good and valuable  consideration,  the
receipt and  sufficiency  of which are hereby  acknowledged,  the parties hereto
agree as follows:

                                    SECTION 1

             Agreement to Purchase and Sell Common Stock and Warrant

          Upon the terms and subject to the  conditions of this  Agreement,  the
Company  hereby agrees to sell to the  Purchaser,  and the  Purchaser  agrees to
purchase from the Company, 860,681 shares of Common Stock (the "Shares") and the
Warrant,  which shall entitle the holder  thereof to purchase  279,869 shares of
Common  Stock  (the  "Warrant  Shares"),  for an  aggregate  purchase  price  of
$24,228,170.15.  The Warrant shall be exercisable at an exercise price of $35.19
per Warrant Share,  for an aggregate  purchase price of $9,848,590.  The Warrant
shall be in the form attached as Exhibit A.

                                    SECTION 2

                            Delivery; Payment; Legend

          2.1 Closing  Date.  The Closing of the purchase and sale of the Shares
and  Warrant  hereunder  (the "Closing")  shall be held  upon the  exchange  via
facsimile  of  executed  signature  pages  of all  documents  required  by  this
Agreement, together with the deliveries contemplated by Section 2.2 (the date of
the Closing being  hereinafter  referred to as the "Closing Date").  Each of the
Company  and the  Purchaser  covenant  to  deliver  originals  of each  document
promptly following the Closing Date.

          2.2 Delivery and Payment. At the Closing,  the Company will deliver to
the  Purchaser  a  duly  executed  Warrant  and a  certificate  or  certificates
representing  the Shares  against  payment of the  aggregate  purchase  price of
$24,228,170.15  by wire transfer of  immediately  available  funds to an account
designated by the Company.

          2.3 Legend.  The certificate or certificates  representing  the Shares
shall be subject to a legend  restricting  transfer  under the Securities Act of
1933,  as amended  (the  "Securities  Act") and  referring  to  restrictions  on
transfer herein, such legend to be substantially as follows:

               "The  shares  represented  by this  certificate  have been issued
     without registration under the Securities Act of 1933, as amended, or under
     any state securities law. Such shares may not be sold or transferred in the
     absence  of  such   registration  or  an  opinion  of  counsel   reasonably
     satisfactory  to the Company as to the  availability  of an exemption  from
     registration.

               The  shares  represented  by  this  certificate  are  subject  to
     restrictions  on transfer set forth in a Common Stock and Warrant  Purchase
     Agreement  dated as of March 1, 1999  between  the  Company  and  Microsoft
     Corporation,  a copy  of  which  agreement  may be  obtained  at no cost by
     written  request  made by the holder of record of this  certificate  to the
     secretary of the Company at the Company's principal executive offices."

          The Company  agrees  (i) to  remove the legend set forth in the second
preceding  paragraph  upon (a)  receipt of a request  from the  Purchaser  after
registration  of the  Shares  under the  Securities  Act in which the  Purchaser
represents  that  the  Shares  are  being  sold or  otherwise  transferred  in a
transaction of the character (including lending of securities)  described in the
plan of distribution of the registration statement applicable to such Shares, or
(b)  receipt  of  an  opinion  of  counsel  in  form  and  substance  reasonably
satisfactory  to the Company that the Shares are  eligible for transfer  without
registration under the Securities Act and (ii) to remove the legend set forth in
the  immediately  preceding  paragraph at such time with respect to those Shares
that may be transferred  from time to time upon the termination of the covenants
of Section 7 as provided for in Section 8.3.

                                    SECTION 3

                  Representations and Warranties of the Company

          The  Company  hereby  represents  and  warrants  to the  Purchaser  as
follows:

          3.1  Organization.  The Company is a  corporation  duly  organized and
validly  existing  under  the  laws of the  State of New  Jersey  and is in good
standing under such laws. The Company has the requisite  corporate  power to own
and operate its properties and assets, and to carry on its business as presently
conducted and as contemplated by the Development and License Agreement  referred
to in  Section  5.6.  The  Company  is  qualified  to do  business  as a foreign
corporation in each  jurisdiction  in which the ownership of its property or the
nature of its business requires such qualification,  except where the failure to
be so qualified  would not have a materially  adverse  effect on the Company and
its subsidiaries, taken as a whole.

          3.2  Authorization.  All  corporate  action on the part of the Company
necessary for the  authorization,  execution,  delivery and  performance of this
Agreement and the Warrant by the Company, and the authorization,  sale, issuance
and delivery of the Shares  hereunder  have been taken.  This  Agreement and the
Warrant  constitute  legal,  valid  and  binding   obligations  of  the  Company
enforceable  in  accordance  with  their  respective  terms,  subject to laws of
general application relating to bankruptcy, insolvency and the relief of debtors
and rules of law  governing  specific  performance,  injunctive  relief or other
equitable remedies. Upon their issuance and delivery pursuant to this Agreement,
the Shares will be validly issued,  fully paid and  nonassessable.  The issuance
and sale of the Shares will not give rise to any preemptive  rights or rights of
first refusal on behalf of any person in existence on the date hereof.

          3.3 No Conflict.  The execution and delivery of this Agreement and the
Warrant do not, and the consummation of the transactions contemplated hereby and
thereby will not, conflict with, or result in any violation of, or default (with
or  without  notice  or lapse  of time,  or  both),  or give  rise to a right of
termination,  cancellation  or  acceleration of any obligation or to a loss of a
material   benefit  under,   any  provision  of  the  Restated   Certificate  of
Incorporation  or Bylaws,  as amended to date,  of the Company or any  mortgage,
indenture,   lease  or  other  agreement  or  instrument,   permit,  concession,
franchise,  license,  judgment,  order, decree, statute, law, ordinance, rule or
regulation  applicable to the Company,  its properties or assets,  the effect of
which would have a material adverse effect on the Company and its  subsidiaries,
taken as a whole,  or  materially  impair or  restrict  the  Company's  power to
perform its obligations as contemplated under said agreements.

          3.4 SEC  Documents.  The  Company  has  filed  all  required  reports,
schedules,  forms,  statements and other  documents  required to be filed by the
Company with the Securities and Exchange  Commission  (the "SEC") since December
31, 1997 (the "SEC Documents").  As of their respective dates, the SEC Documents
complied in all material respects with requirements of the Securities Act or the
Securities  Exchange Act of 1934, as amended (the "Exchange  Act"),  as the case
may  be  and  the  rules  and  regulations  of the  SEC  promulgated  thereunder
applicable to such SEC Documents,  and none of the SEC Documents,  except to the
extent  that  information  contained  in any SEC  Document  has been  revised or
superseded  by a later Filed SEC  Document  (as defined  below),  contained  any
untrue statement of a material fact or omitted to state a material fact required
to be stated  therein or necessary in order to make the statements  therein,  in
light of the  circumstances  under  which they were made,  not  misleading.  The
financial  statements of the Company included in the Company's Form 10-K for the
year ended  December 31, 1997 and the Form 10-Q for the period  ended  September
30, 1998 comply as to form in all material  respects with applicable  accounting
requirements  and the published  rules and  regulations  of the SEC with respect
thereto,   have  been  prepared  in  accordance  with  U.S.  generally  accepted
accounting  principles ("GAAP") (except, in the case of unaudited  statements as
permitted  by Form 10-Q of the SEC)  applied on a  consistent  basis  during the
periods  involved  (except  as  may be  indicated  in the  notes  thereto  or as
described  in  writing to the  Purchaser  prior to the date  hereof)  and fairly
present the consolidated  financial position of the Company and its consolidated
subsidiaries  as of the dates  thereof  and the  consolidated  results  of their
operation  and  cashflows  for the periods then ending in  accordance  with GAAP
(subject,  in the case of the  unaudited  statements,  to normal  year end audit
adjustments).  Except as set forth in the Filed SEC  Documents  and  except  for
liabilities  that have arisen in the ordinary  course of business  subsequent to
September  30,  1998,  neither the Company nor any of its  subsidiaries  has any
material  liabilities or obligations of any nature (whether  accrued,  absolute,
contingent  or  otherwise)  required  by GAAP to be set forth on a  consolidated
balance sheet of the Company and its  consolidated  subsidiaries or in the notes
thereto and which can  reasonably be expected to have a material  adverse effect
on the Company and its subsidiaries taken as a whole.

          3.5 Absence of Certain  Changes or Events.  Except as disclosed in the
SEC  Documents  filed and publicly  available  (either on the EDGAR system or by
delivery to the  Purchaser)  prior to the date of this Agreement (the "Filed SEC
Documents"),  since the date of the most  recent  audited  financial  statements
included  in the Filed SEC  Documents,  there has not been (i) any  declaration,
setting aside or payment of any dividend or distribution (whether in cash, stock
or property) with respect to any of the Company's capital stock, (ii) any split,
combination or  reclassification  of any of its capital stock or any issuance or
the authorization of any issuance of any other securities in respect of, in lieu
of or in  substitution  for  shares of its  capital  stock,  (iii)  any  damage,
destruction or loss of property,  whether or not covered by insurance,  that has
or is  likely  to  have a  material  adverse  effect  on  the  Company  and  its
subsidiaries  taken  as a whole,  or (iv)  any  change  in  accounting  methods,
principles  or  practices  by  the  Company  materially  affecting  its  assets,
liabilities,  or business,  except insofar as may have been required by a change
in GAAP.

          3.6 Governmental  Consent,  etc. In reliance on the representations of
the Purchaser  contained  herein,  no consent,  approval or authorization of, or
designation,  declaration or filing with, any governmental authority on the part
of the Company is required in connection  with the valid  execution and delivery
of  this  Agreement,  or the  offer,  sale or  issuance  of the  Shares,  or the
consummation of any other transaction  contemplated hereby,  except such filings
as may be  required  to be made  with the SEC and the  National  Association  of
Securities  Dealers,  Inc. There is no order in effect  enjoining or restricting
the Company from  executing,  delivering  or  performing  this  Agreement or the
Warrant.

          3.7  Litigation.  Except as is disclosed  in the Filed SEC  Documents,
there is no suit, action or proceeding pending against the Company or any of its
subsidiaries  that,  individually  or in  the  aggregate,  would  reasonably  be
expected  to  (i)  have  a  material  adverse  effect  on the  Company  and  its
subsidiaries taken as a whole, (ii) impair the ability of the Company to perform
its  obligations  under this  Agreement and the Warrant,  or  (iii) prevent  the
consummation of any of the transactions contemplated by said agreements.

          3.8 Capitalization.

          (a) As of the date of this Agreement,  the authorized capital stock of
the Company consists of 60,000,000 shares of the Common Stock, no par value, and
10,000,000 shares of preferred stock, no par value, of the Company (the "Company
Preferred Stock").

          (b) As of December 31, 1998, there were (1)  15,895,041  shares of the
Common Stock issued and outstanding, (2) 392,500 shares of the Common Stock held
in the treasury of the  Company,  (3) no shares of the Company  Preferred  Stock
issued  and  outstanding,  (4) 3,179,428  shares of Common  Stock  reserved  for
issuance upon exercise of outstanding awards under the Company's stock incentive
plans granted to current or former  employees,  directors or  consultants of the
Company and its subsidiaries,  (5) 1,813,924 shares of Common Stock reserved for
issuance  under  awards not then granted  under the  Company's  stock  incentive
plans,  and (6) 85,419  shares of Common Stock  reserved for issuance  under the
Company's  stock  purchase  plan. On February 22, 1999,  the Company's  board of
directors approved,  subject to stockholder  approval, an increase in the number
of shares covered by such stock purchase plan by 200,000 shares of Common Stock.

          (c) All  outstanding  shares of the Common Stock are duly  authorized,
validly issued, fully paid and nonassessable, free from any liens created by the
Company with  respect to the  issuance  and delivery  thereof and not subject to
preemptive rights.

          3.9 Registration Rights. No person has the right to register shares of
Common Stock on the registration  statement  required to be filed by the Company
pursuant to Section 7.2 of this Agreement.

                                    SECTION 4

                 Representations and Warranties of the Purchaser

          The  Purchaser  hereby  represents  and  warrants  to the  Company  as
follows:

          4.1  Organization.  The Purchaser is a corporation  duly organized and
validly  existing under the laws of the State of Washington,  with all requisite
corporate  power  and  authority  to own,  lease  and  operate  its  assets  and
properties and to conduct its business as now being conducted.

          4.2  Authority.  All  corporate  action  on the part of the  Purchaser
necessary for the  authorization,  execution,  delivery and  performance of this
Agreement by the Purchaser has been taken. This Agreement has been duly executed
and  delivered by the  Purchaser and  constitutes  the legal,  valid and binding
obligation of the Purchaser,  enforceable in accordance with its terms,  subject
to laws of general application relating to bankruptcy, insolvency and the relief
of debtors and rules of law governing specific performance, injunctive relief or
other  equitable  remedies.  The execution and delivery of the Agreement do not,
and the consummation of the transactions  contemplated hereby will not, conflict
with or result in any  violation of any  obligation  under any  provision of the
Articles of  Incorporation  (as restated and amended) or Bylaws of the Purchaser
or any judgment,  order,  decree,  statute,  law, ordinance,  rule or regulation
applicable to the Purchaser.

          4.3 Investment.  The Purchaser is acquiring the Shares and the Warrant
for  investment for its own account,  not as a nominee or agent,  and not with a
view to,  or for  resale in  connection  with,  any  distribution  thereof.  The
Purchaser  understands  that the Shares and the Warrant have not been registered
under the Securities Act by reason of a specific exemption from the registration
provisions of the  Securities  Act which depends upon,  among other things,  the
bona fide nature of the  investment  intent and the accuracy of the  Purchaser's
representations and warranties contained herein.

          4.4  Disclosure of  Information.  The Purchaser has had full access to
all  information  it  considers  necessary  or  appropriate  to make an informed
investment  decision with respect to the Shares to be purchased by the Purchaser
under  this  Agreement  and  the  Warrant.  The  Purchaser  further  has  had an
opportunity to ask questions and receive answers from the Company  regarding the
terms and conditions of the offering of the Shares and the Warrant and to obtain
additional  information  necessary  to verify any  information  furnished to the
Purchaser or to which the Purchaser had access.

          4.5 Investment Experience. The Purchaser understands that the purchase
of  the  Shares  and  Warrant  involves  substantial  risk.  The  Purchaser  has
experience as an investor in securities of companies and acknowledges that it is
able to fend for itself,  can bear the economic  risk of its  investment  in the
Shares and the Warrant and has such  knowledge  and  experience  in financial or
business  matters that it is capable of evaluating  the merits and risks of this
investment  in the Shares and the Warrant and  protecting  its own  interests in
connection with this investment.

          4.6  Accredited  Investor  Status.  The  Purchaser  is an  "accredited
investor"  within the meaning of Regulation D promulgated  under the  Securities
Act.

          4.7 Restricted  Securities.  The Purchaser understands that the Shares
to be purchased by the Purchaser  hereunder and the Warrant are characterized as
"restricted  securities"  under the  Securities  Act  inasmuch as they are being
acquired from the Company in a transaction  not involving a public  offering and
that  under  the  Securities  Act and  applicable  regulations  thereunder  such
securities may be resold without  registration  under the Securities Act only in
certain  limited  circumstances.  The Purchaser is familiar with Rule 144 of the
Securities Act, as presently in effect,  and understands the resale  limitations
imposed  thereby and by the Securities Act. The Purchaser  understands  that the
Company is under no obligation to register any of the Shares sold  hereunder and
the Warrant  except as provided in Section 7.2. The Purchaser  shall not dispose
of the Shares,  the Warrant or the Warrant  Shares other than pursuant to offers
and sales  which are  either (a)  registered  under the  Securities  Act and any
applicable state securities law or (b) in the opinion of counsel satisfactory to
the Company, exempt from the registration requirements of the Securities Act and
any applicable securities law.

          4.8 Passive  Investor.  The Purchaser is acquiring the Shares  "solely
for the purpose of  investment"  as such phrase is defined in 16 C.F.R.  Section
801.1(i)(1)  and  the  Purchaser  has  no  intention  of  participating  in  the
formulation,  determination or direction of the basic business  decisions of the
Company.

          4.9 Governmental Consent,  etc. No consent,  approval or authorization
of, or designation,  declaration or filing with, any  governmental  authority on
the part of the Purchaser is required in connection with the valid execution and
delivery of this Agreement or the  consummation of any transaction  contemplated
hereby.  There is no order in effect enjoining or restricting the Purchaser from
executing, delivering or performing this Agreement.


                                    SECTION 5

                    Conditions to Obligation of the Purchaser

          The  Purchaser's  obligation  to purchase the Shares at the Closing is
subject to the  fulfillment  on or prior to the  Closing  Date of the  following
conditions:

          5.1  Representations  and Warranties.  Each of the representations and
warranties of the Company contained in Section 3 will be true and correct on and
as of the date hereof and on and as of the Closing  Date with the same effect as
though such representations and warranties had been made as of the Closing Date.
The  Purchaser  shall have  received a  certificate  signed by an officer of the
Company to such effect on the  Closing  Date,  except  that no such  certificate
shall be necessary if this Agreement is executed on the Closing Date.

          5.2 Covenants.  All covenants,  agreements and conditions contained in
this  Agreement  to be  performed by the Company on or prior to the Closing Date
shall  have been  performed  or  complied  with in all  material  respects.  The
Purchaser shall have received a certificate  signed by an officer of the Company
to such effect on the Closing  Date,  except that no such  certificate  shall be
necessary if this Agreement is executed on the Closing Date.

          5.3 No Order Pending;  Governmental Consent, etc. There shall not then
be in effect any order enjoining or restraining the transactions contemplated by
this Agreement.

          5.4 No Law Prohibiting or Restricting Sale of the Shares.  There shall
not be in effect any law, rule or regulation prohibiting or restricting the sale
of the Shares,  or  requiring  any consent or approval of any person which shall
not have been obtained to issue the Shares.

          5.5 Warrant. The Company shall have executed and delivered the Warrant
substantially in the form attached hereto as Exhibit A.

          5.6.  Development  Agreement.  The  Company  shall have  executed  and
delivered  a  Development  and License  Agreement  in a form  acceptable  to the
Purchaser.

          5.7 Opinion of Counsel.  The Purchaser  shall have received an opinion
dated as of the Closing Date of Lowenstein  Sandler PC,  counsel to the Company,
substantially in the form attached as Exhibit 5.7.

                                    SECTION 6

                     Conditions to Obligation of the Company

          The  Company's  obligation to sell and issue the Shares at the Closing
is subject to the  fulfillment  on or prior to the Closing Date of the following
conditions:

          6.1 Representations and Warranties. The representations and warranties
of the  Purchaser  contained  in Section 4 will be true and correct on and as of
the date hereof and on and as of the Closing Date with the same effect as though
such  representations  and  warranties had been made as of the Closing Date. The
Company shall have  received a certificate  signed on behalf of the Purchaser by
an officer of the Purchaser to such effect on the Closing  Date,  except that no
such certificate shall be necessary if this Agreement is executed on the Closing
Date.

          6.2 Covenants.  All covenants,  agreements and conditions contained in
this  Agreement to be performed by the Purchaser on or prior to the Closing Date
shall have been performed or complied with in all material respects. The Company
shall  have  received  a  certificate  signed on behalf of the  Purchaser  by an
officer of the Purchaser to such effect on the Closing Date, except that no such
certificate  shall be  necessary  if this  Agreement  is executed on the Closing
Date.

          6.3 No Order  Pending.  There  shall not then be in  effect  any order
enjoining or restraining the transactions contemplated by this Agreement.

          6.4 No Law  Prohibiting or Restricting  the Sale of the Shares.  There
shall not be in effect any law, rule or regulation  prohibiting  or  restricting
the sale of the Shares, or requiring any consent or approval of any person which
shall not have been obtained to issue the Shares with full benefits afforded the
Common Stock (except as otherwise provided in this Agreement).

          6.5 Opinion of Counsel.  The  Company  shall have  received an opinion
dated as of the  Closing  Date of  Preston  Gates & Ellis  LLP,  counsel  to the
Purchaser, substantially in the form attached as Exhibit 6.5.

                                    SECTION 7

                            Covenants of the Parties

          7.1 Restrictions on Transfer of Shares.

          (a)  Limitations  in the First Year.  Except as otherwise  provided in
Section 7.1(c),  for a period of one year from the date of this  Agreement,  the
Purchaser  shall not sell or transfer (i) any Shares  acquired  pursuant to this
Agreement,  (ii) the Warrant or any portion  thereof or (iii) any Warrant Shares
acquired upon exercise of the Warrant.

          (b)  Limitations in the Second Year.  Except as otherwise  provided in
Section 7.1(c),  after the first  anniversary of the execution of this Agreement
until the second anniversary  thereof,  the Purchaser shall not sell or transfer
more than 50% of the Shares (i.e.,  the Purchaser may sell or transfer up to 50%
of the Shares without restriction),  shall not sell or transfer more than 50% of
the Warrant Shares that may be acquired upon exercise of the Warrant (i.e.,  the
Purchaser  may  sell  or  transfer  up to 50% of  such  Warrant  Shares  without
restriction) and shall not sell or transfer the Warrant or any portion thereof.

          (c)  Exceptions to Limitations  on Transfer.  Sections  7.1(a) and (b)
shall not apply as follows:

               (1) If (i) the  Purchaser  terminates,  pursuant to Section  14.2
thereof,  the  Development  and  License  Agreement  referred  to in Section 5.6
executed and delivered by the parties  hereto  concurrent  with the execution of
this Agreement (the "Development and License  Agreement");  (ii) the Company and
Purchaser  mutually agree to terminate the  Development  and License  Agreement;
(iii) the Company  terminates  the  Development  and License  Agreement  without
cause;   or  (iv)  the  Company  shall   consummate  a  merger,   consolidation,
reclassification,  recapitalization, reorganization or similar transaction or be
the subject of a tender  offer where the offeror has  announced  the purchase of
more  than  fifty  percent  (50%)  of  the  outstanding  shares  and  for  which
shareholder  withdrawal  rights have expired,  so that, the  stockholders of the
Company immediately prior to any such transactions described in this clause (iv)
do not,  immediately  after such  transaction,  have more than 50% of the voting
power thereof.

               (2)  In  the  event  that  there  shall   occur  an   "Insolvency
Proceeding"  involving the Company. The term "Insolvency  Proceeding" shall mean
(i) an  assignment for the benefit of creditors,  (ii) the filing by the Company
of a petition  to have the  Company  adjudged  insolvent,  bankrupt or seeking a
reorganization or liquidation  under any law relating to bankruptcy,  insolvency
or  receivership,  (iii) an  appointment  of a receiver  or  trustee  for all or
substantially  all of the assets of the  Company  unless  appointed  without the
Company's  consent,  in which case if after sixty (60) days such appointment has
not been vacated or stayed, (iv) a public admission in writing by the Company of
the Company's inability to pay its debts as they become due, or (v) the adoption
of a plan of  liquidation  or  dissolution  by the  board  of  directors  of the
Company.

               (3) The  Purchaser  may transfer the Shares,  the Warrant and the
Warrant  Shares to any entity of which the  Purchaser  owns more than 50% of the
voting power thereof (a "Controlled  Entity"), so long as such Controlled Entity
agrees to hold such Shares,  the Warrant and such Warrant  Shares subject to all
the  provisions  of this  Agreement,  including  this Section 7.1, and agrees to
transfer  such Shares,  the Warrant and such Warrant  Shares to the Purchaser or
another  Controlled  Entity of the  Purchaser  if it  ceases to be a  Controlled
Entity of the Purchaser.

               (4)  After  the  second  anniversary  of the  execution  of  this
Agreement,  the  Purchaser  may sell or transfer  any or all of the Shares,  the
Warrant and the Warrant Shares without any restriction under this Section 7.

               (5) The  restrictions  on  transfer  in this  Section 7 shall not
prevent  the  Purchaser  from  entering  into  bona  fide  hedging  transactions
(including any derivative  transaction)  with one or more nationally  recognized
investment banking firms as a means to hedge fluctuations in the market price of
the Shares,  provided that such transactions do not impair, in any respect,  the
Company's  reliance  upon  Section  4(2) of the  Securities  Act to  exempt  the
issuance of the Shares, the Warrant and the Warrant Shares from the registration
requirements  of the  Securities Act or the Company's  reliance upon  exemptions
from the registration requirements of applicable state securities laws.

          7.2  Registration  of Shares.  (a) On or before  April 16,  1999,  the
Company shall  register  440,681 of the Shares and all of the Warrant Shares for
resale by filing with the SEC a registration  statement on Form S-3 (electing to
rely on rule  415)  and  shall  thereafter  use its  best  efforts  to have  the
registration statement declared effective as promptly as practicable.

          (b) On or before  January 15,  2000,  the Company  shall  register the
Shares  not  previously   registered  for  resale  by  filing  with  the  SEC  a
registration  statement  on Form S-3  (electing  to rely on rule  415) and shall
thereafter  use its best  efforts to have the  registration  statement  declared
effective as promptly as practicable.

          (c) The Company will provide the Purchaser the  opportunity to comment
on the  registration  statements  prior to its filing and will  incorporate  the
Purchaser's reasonable comments (provided such comments are consistent with this
Agreement) with respect to information  concerning the Purchaser and the plan of
distribution.  The Company  shall use its best efforts to keep the  registration
statements  effective  until such time as all the Shares and the Warrant  Shares
held by the  Purchaser  may be sold  pursuant  to Rule 144 within a  three-month
period.

          7.3 Nasdaq  Listing.  The Company  shall use its best efforts to cause
the Shares and the Warrant  Shares,  issuable to the Purchaser  pursuant to this
Agreement  (including  shares  issuable  under the Warrant) to be authorized for
listing as a Nasdaq National  Market  Security on the Nasdaq Stock Market,  or a
national securities exchange.

                                    SECTION 8
                                 Miscellaneous

          8.1 Best Efforts.  Each of the Company and the Purchaser shall use its
best  efforts to take all actions  required  under any law,  rule or  regulation
adopted  subsequent  to the date  hereto to ensure  that the  conditions  to the
Closing set forth herein are satisfied on or before the Closing Date.

          8.2 Governing Law. This Agreement shall be governed in all respects by
the internal  laws of the State of  Washington  as applied to contracts  entered
into solely  between  residents of, and to be performed  entirely  within,  such
state, and without reference to its principles of conflicts of laws or choice of
laws.

          8.3  Survival;  Termination  of  Covenants.  The  representations  and
warranties in Sections 3 and 4 of this Agreement shall survive the Closing for a
period of five  years from the date  hereof.  The  covenants  in Section 7 shall
survive  the  consummation  of the  transaction  provided  for  herein and shall
terminate  on the  date  specified  therein  or  upon  the  satisfaction  of the
condition or conditions stated therein.

          8.4 Successors and Assigns.  This Agreement  shall be binding upon and
shall inure to the benefit of the parties hereto and their respective successors
and assigns.

          8.5  Entire  Agreement;  Amendment.  This  Agreement  and the  Warrant
constitute the full and entire  understanding  and agreement between the parties
with regard to the subject  matter  hereof and thereof and  supersede  all prior
agreements and  understandings  among the parties relating to the subject matter
hereof.  Neither  this  Agreement  nor any term hereof may be  amended,  waived,
discharged or terminated other than by a written  instrument signed by the party
against whom enforcement of any such amendment, waiver, discharge or termination
is sought.

          8.6 Notices.  All notices,  requests,  demands or other communications
which are required or may be given pursuant to the terms of this Agreement shall
be in writing  and shall be deemed to have been duly  given:  (i) on the date of
delivery if  personally  delivered by hand,  (ii) upon  the third day after such
notice is  (a) deposited  in the United  States mail, if mailed by registered or
certified mail,  postage  prepaid,  return receipt  requested,  or (b) sent by a
nationally  recognized  overnight  express courier,  or (iii) by  facsimile upon
written  confirmation  (other than the automatic  confirmation  that is received
from the  recipient's  facsimile  machine) of receipt by the  recipient  of such
notice:

                  (a)      if to the Company, to it at:

                           Dialogic Corporation
                           1515 Route 10
                           Parsippany, NJ  07054
                           Facsimile Number:  (973) 993-3060
                           Attention: Chief Financial Officer

                  and with a copy to:

                           Dialogic Corporation
                           1515 Route 10
                           Parsippany, NJ  07054
                           Facsimile Number:  (973) 993-3060
                           Attention: General Counsel

                  (b)      if to the Purchaser, to it at:

                           Microsoft Corporation
                           One Microsoft Way
                           Building 8 North Office 2211
                           Redmond, WA  98052
                           Attention:  Chief Financial Officer
                           Facsimile Number:  (425) 936-7369

               with a copy  addressed as set forth above but to the attention of
               General Counsel,  Finance and  Administration,  Facsimile Number:
               (425) 869-1327

                  with a copy to:

                           Mark R. Beatty
                           Preston Gates & Ellis LLP
                           5000 Columbia Center
                           701 Fifth Avenue
                           Seattle, WA 98104-7078
                           Facsimile Number:  (206) 623-7022

          8.7  Brokers.  (a)  The  Company  has  not  engaged,  consented  to or
authorized any broker, finder or intermediary to act on its behalf,  directly or
indirectly,  as  a  broker,  finder  or  intermediary  in  connection  with  the
transactions  contemplated  by this  Agreement.  The  Company  hereby  agrees to
indemnify and hold harmless the Purchaser from and against all fees, commissions
or other payments owing to any party acting on behalf of the Company hereunder.

          (b) The  Purchaser  has not engaged,  consented to or  authorized  any
broker, finder or intermediary to act on its behalf, directly or indirectly,  as
a  broker,   finder  or  intermediary   in  connection  with  the   transactions
contemplated  by this  Agreement.  The Purchaser  hereby agrees to indemnify and
hold  harmless  the  Company  from and against  all fees,  commissions  or other
payments owing to any party acting on behalf of the Purchaser hereunder.

          8.8 Fees, Costs and Expenses.  All fees, costs and expenses (including
attorneys' fees and expenses) incurred by either party hereto in connection with
the preparation, negotiation and execution of this Agreement and the Warrant and
the consummation of the transactions  contemplated hereby and thereby,  shall be
the sole and exclusive responsibility of such party.

          8.9 Severability.  If any term, provision,  covenant or restriction of
this Agreement or the Warrant is held by a court of competent jurisdiction to be
invalid,  void  or  unenforceable,  the  remainder  of  the  terms,  provisions,
covenants and  restriction of this Agreement or the Warrant shall remain in full
force and effect and shall in no way be affected, impaired or invalidated.

          8.10  Counterparts.  This  Agreement  may be  executed  in two or more
partially or fully executed  counterparts  and by facsimile  signatures  each of
which shall be deemed an original and shall bind the signatory, but all of which
together  shall  constitute but one and the same  instrument.  The execution and
delivery of a Signature  Page - Common Stock and Warrant  Purchase  Agreement in
the form  attached  to this  Agreement  by any party  hereto who shall have been
furnished the final form of this  Agreement  shall  constitute the execution and
delivery of this Agreement by such party.

          8.11 Initial Public  Announcement.  The Company and the Purchaser have
agreed on the form and content of the initial public announcement which shall be
made concerning this Agreement and the Warrant and the transactions contemplated
hereby and thereby.  Neither the Company nor the Purchaser  shall make any other
public announcement  regarding this Agreement,  the Warrant and the transactions
contemplated hereby and thereby without the consent of the other, except for (a)
press releases and other public  announcements that are consistent with and that
confirm such initial public  announcement and (b) other press releases or public
announcements as required by law.

 
              [remainder of this page is intentionally left blank]


<PAGE>

          IN WITNESS  WHEREOF,  the parties hereto have caused this Agreement to
be executed  by their  respective  authorized  officers as of the date set forth
above.

                                            DIALOGIC CORPORATION
                    

                                            By:

                                            Name:                              
                                            Title:                             

                                            MICROSOFT CORPORATION


                                           By:                                  
                                           Name:                           
                                           Title:                            



                   COMMON STOCK AND WARRANT PURCHASE AGREEMENT
                            Dated as of March 1, 1999
                                     Between


                              DIALOGIC CORPORATION


                                       and


                              MICROSOFT CORPORATION

<PAGE>


                                                                      EXHIBIT A

THIS  WARRANT  HAS NOT BEEN  REGISTERED  UNDER THE  SECURITIES  ACT OF 1933,  AS
AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAW. NO TRANSFER OF THIS
WARRANT SHALL BE VALID OR EFFECTIVE UNLESS (A) SUCH TRANSFER IS MADE PURSUANT TO
AN EFFECTIVE  REGISTRATION  STATEMENT UNDER THE SECURITIES ACT AND IN COMPLIANCE
WITH ANY APPLICABLE STATE SECURITIES LAW, OR (B) THE HOLDER SHALL DELIVER TO THE
COMPANY AN OPINION OF COUNSEL IN FORM AND SUBSTANCE REASONABLY ACCEPTABLE TO THE
COMPANY THAT SUCH TRANSFER IS EXEMPT FROM THE  REGISTRATION  REQUIREMENTS OF THE
SECURITIES ACT AND OF ANY APPLICABLE STATE SECURITIES LAW.


Warrant No. M-1                                                 March 1, 1999


                              DIALOGIC CORPORATION

                          COMMON STOCK PURCHASE WARRANT


          Dialogic Corporation, a New Jersey corporation (the "Company"), hereby
grants to Microsoft Corporation, a Washington corporation ("Microsoft"),  or its
permitted assigns or transferees  (Microsoft and each such permitted assignee or
transferee  being  referred  to herein as a  "holder"  and  collectively  as the
"holders")  the  right to  purchase,  at any time  after the  Exercise  Date (as
defined  below)  and from time to time on and after  the date  hereof  until the
Expiration Date (as defined below), up to 279,869 fully paid and  non-assessable
shares of Common Stock of the Company,  no par value,  (the "Common Stock"),  on
the terms and subject to the conditions set forth below.

          This Common Stock Purchase Warrant  (hereinafter,  this "Warrant") was
originally  issued on March 1, 1999 (the  "Original  Issue Date").  This Warrant
shall expire and be of no further  force or effect on the date (the  "Expiration
Date") four (4) years from the Original Issue Date.

          1. Exercise of Warrant.

          1.1  Exercise  and  Vesting.  Subject  to  adjustment  as  hereinafter
provided,  the rights  represented by this Warrant are  exercisable on and after
the date hereof (the "Exercise  Date") until the Expiration Date, at a price per
share  (the   "Exercise   Price")  of  the  Common  Stock   issuable   hereunder
(hereinafter,  "Warrant  Shares")  equal to $35.19.  The Exercise Price shall be
payable in cash or by certified or official bank check in immediately  available
funds as  hereinafter  provided or in  accordance  with Section 1.2 below.  This
Warrant is fully vested.

          Upon surrender of this Warrant with a duly executed Notice of Exercise
in the form of Annex A hereto,  together with  payment,  if  applicable,  of the
Exercise  Price for the Warrant  Shares  purchased,  at the Company's  principal
executive offices presently located at 1515 Route 10,  Parsippany,  NJ 07054, or
at such other  address as the Company  shall have  advised the holder in writing
(the "Designated Office"), the holder shall be entitled to receive a certificate
or certificates for the Warrant Shares so purchased. The Company agrees that the
Warrant Shares shall be deemed to have been issued to the holder as of the close
of  business  on the date on which  this  Warrant  shall  have been  surrendered
together  with the Notice of  Exercise  and  payment,  if  applicable,  for such
Warrant Shares.

          1.2 Right to Convert.

          (a) Subject to the provisions of Section 1.1, at any time or from time
on or prior to the  Expiration  Date, the holder of this Warrant shall also have
the right to  convert  this  Warrant or any  portion  thereof  (the  "Conversion
Right"),  without payment by the holder of this Warrant of the Exercise Price in
cash or any other  consideration  (other than the surrender of rights to receive
Warrant  Shares  hereunder),  into  shares of Common  Stock as  provided in this
Section 1.2. Upon exercise of the Conversion  Right with respect to a particular
number of Warrant Shares (the  "Converted  Warrant  Shares"),  the Company shall
deliver to the  holder of this  Warrant  (without  payment by the holder of this
Warrant of the Exercise Price in cash or any other consideration (other than the
surrender of rights to receive Warrant Shares  hereunder)) that number of shares
of Common Stock computed using the following formula: [OBJECT OMITTED] N = CWS *
(CMP - EP) CMP Where:

          N    = the number of shares of Common Stock to be issued to holder;

          CWS  = the  Converted  Warrant  Shares,  which is either (1) the total
                 number of shares of Common Stock  purchasable under the Warrant
                 or,  if  only a portion  of the Warrant is being exercised, (2)
                 the portion of the Warrant Shares being exercised and canceled 
                 (as of  the Conversion Date as defined by Section 1.2(b));

          CMP  = the  Current  Market  Price of one  share of Common  Stock,  as
                 defined in Section 1.2(c) (as of the Conversion Date); and

          EP   = Exercise Price (as of the Conversion Date).

No fractional  Warrant  Shares shall be issuable upon exercise of the Conversion
Right, and if the number of Warrant Shares to be issued determined in accordance
with the above  formula is other than a whole  number,  the Company shall pay to
the holder of this  Warrant an amount in cash equal to the Current  Market Price
of the resulting fractional Warrant Share on the Conversion Date.

          (b) The  Conversion  Right  may be  exercised  by the  holder  of this
Warrant by the  surrender of this  Warrant as provided in Section 1.1,  together
with a written  statement  specifying  that the holder of this  Warrant  thereby
intends to exercise the Conversion  Right and indicating the number of Converted
Warrant Shares which are covered by the exercise of the Conversion  Right.  Such
conversion  shall be  effective  upon  receipt by the  Company of this  Warrant,
together  with such  written  statement,  or on such later date as is  specified
therein (the "Conversion  Date").  The Company shall issue to the holder of this
Warrant as of the Conversion  Date a certificate for the Warrant Shares issuable
upon exercise of the Conversion Right and, if applicable,  a new warrant of like
tenor  evidencing  the balance of the Warrant Shares  remaining  subject to this
Warrant.

          (c) The term  "Current  Market Price" for the Common Stock shall mean:
(i) if the Common Stock is publicly traded on the date of a duly executed Notice
of  Exercise,  the  closing  price  per share on the day  immediately  preceding
delivery of such duly  executed  Notice of Exercise as reported on the principal
stock  exchange  or  quotation  system  on which the  Common  Stock is listed or
quoted;  or (ii) if the Common  Stock is not publicly  traded on such date,  the
fair value of the Common Stock as determined  in the good faith  judgment of the
Company's  board of  directors;  provided,  however,  that if the holder of this
Warrant  objects to the decision of the board of  directors,  then the appraised
value per  share of  Common  Stock as of such  date  shall be  determined  by an
investment banking firm of nationally  recognized standing selected and paid for
by the Company and reasonably  satisfactory  to the holder hereof.  In the event
that the holder disputes such appraised  value,  the holder shall be entitled to
select an additional investment banking firm of recognized standing and paid for
by the holder to calculate the appraised value. The Company and the holder shall
use their good faith best efforts to agree on the  appraised  value based on the
reports of the two investment  banking firms.  In the event that the Company and
the holder are still unable to reach  agreement as to the appraised  value,  the
Company  and  the  holder  agree  to  submit  such   determination   to  binding
arbitration,  with the cost of such  arbitration  to be  shared  equally  by the
Company and the holder.

          2. Transfer; Issuance of Stock Certificates; Restrictive Legends.

          2.1. Transfer.  Until the second anniversary of the issue date hereof,
this  Warrant  shall not be  transferable  by the holder  thereof  except to any
entity in which the  holder  owns more than 50% of the voting  power  thereof (a
"Controlled  Entity"),  so long as such  Controlled  Entity  agrees  to hold the
Warrant and such Warrant  Shares subject to all the provisions of this Agreement
and  Section  7.1 of the Common  Stock and  Warrant  Purchase  Agreement  by and
between  the Company  and  Microsoft  (the  "Common  Stock and Warrant  Purchase
Agreement"),  and agrees to transfer the Warrant and such Warrant  Shares to the
holder  or  another  Controlled  Entity  of  the  holder  if it  ceases  to be a
Controlled  Entity of the Purchaser.  After the second  anniversary of the issue
date  hereof,  this Warrant may be  transferred  in whole but not in part by the
holder without restriction (other than restrictions,  if any, imposed by Section
4.7 of the Common Stock and Warrant Purchase Agreement.)

          Subject to compliance  with the  restrictions on transfer set forth in
this Section 2, each transfer of this Warrant and all rights hereunder, in whole
or in part, shall be registered on the books of the Company to be maintained for
such purpose, upon surrender of this Warrant at the Designated Office,  together
with a written  assignment  of this  Warrant in the form of Annex B hereto  duly
executed  by the  holder  or its agent or  attorney.  Upon  such  surrender  and
delivery, the Company shall execute and deliver a new warrant or warrants in the
name of the assignee or  assignees  and in the  denominations  specified in such
instrument  of  assignment,  and  shall  issue  to the  assignor  a new  warrant
evidencing  the portion of this Warrant not so assigned,  if any. A warrant,  if
properly assigned in compliance with the provisions  hereof, may be exercised by
the new holder for the purchase of Warrant  Shares  without having a new warrant
issued.  All warrants  issued upon any assignment of warrants shall be the valid
obligations of the Company, evidencing the same rights, and entitled to the same
benefits  as the  warrants  surrendered  upon such  registration  of transfer or
exchange.

          2.2 Stock  Certificates.  Certificates for the Warrant Shares shall be
delivered to the holder within a reasonable time after the rights represented by
this Warrant shall have been exercised  pursuant to Section 1, and a new warrant
representing  the share,  shares or fraction of a share of Common Stock, if any,
with respect to which this Warrant shall not then have been exercised shall also
be issued to the holder  within  such time.  The  issuance of  certificates  for
Warrant Shares upon the exercise of this Warrant shall be made without charge to
the holder hereof including,  without limitation, any tax that may be payable in
respect thereof;  provided,  however,  that the Company shall not be required to
pay any income tax to which the holder hereof may be subject in connection  with
the issuance of this Warrant or the Warrant Shares.

          2.3.  Restrictive  Legends.  (a)  Except as otherwise provided in this
Section 2.3, each  certificate  for Warrant  Shares issued upon such exercise of
this  Warrant,  shall  be  stamped  or  otherwise  imprinted  with a  legend  in
substantially the following form:

          THE SHARES  REPRESENTED BY THIS  CERTIFICATE  HAVE NOT BEEN REGISTERED
          UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE  "SECURITIES  ACT"),
          OR ANY STATE SECURITIES LAW. NO TRANSFER OF THE SHARES  REPRESENTED BY
          THIS CERTIFICATE  SHALL BE VALID OR EFFECTIVE UNLESS (A) SUCH TRANSFER
          IS MADE  PURSUANT TO AN  EFFECTIVE  REGISTRATION  STATEMENT  UNDER THE
          SECURITIES ACT AND IN COMPLIANCE WITH ANY APPLICABLE  STATE SECURITIES
          LAWS,  OR (B) THE  HOLDER  SHALL  DELIVER TO THE COMPANY AN OPINION OF
          COUNSEL IN FORM AND  SUBSTANCE  REASONABLY  ACCEPTABLE  TO THE COMPANY
          THAT  SUCH   PROPOSED   TRANSFER  IS  EXEMPT  FROM  THE   REGISTRATION
          REQUIREMENTS  OF  THE  SECURITIES  ACT  AND OF  ANY  APPLICABLE  STATE
          SECURITIES LAWS.

          (b) Except as otherwise provided in this Section 2.3, each certificate
for Warrant  Shares issued upon such exercise of this Warrant,  shall be stamped
or otherwise imprinted with a legend in substantially the following form:


          THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO RESTRICTIONS
          ON TRANSFER SET FORTH IN A COMMON STOCK AND WARRANT PURCHASE AGREEMENT
          DATED  AS  OF  MARCH  1,  1999  BETWEEN  THE  COMPANY  AND   MICROSOFT
          CORPORATION,  A COPY OF WHICH  AGREEMENT MAY BE OBTAINED AT NO COST BY
          WRITTEN  REQUEST MADE BY THE HOLDER OF RECORD OF THIS  CERTIFICATE  TO
          THE  SECRETARY  OF THE COMPANY AT THE  COMPANY'S  PRINCIPAL  EXECUTIVE
          OFFICES.

          (c) Except as  otherwise  provided in this  Section 2.3,  each Warrant
shall be stamped  or  otherwise  imprinted  with a legend in  substantially  the
following form:

          THIS WARRANT HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,
          AS AMENDED (THE  "SECURITIES  ACT"), OR ANY STATE  SECURITIES LAWS. NO
          TRANSFER OF THIS WARRANT SHALL BE VALID OR EFFECTIVE  UNLESS  (A) SUCH
          TRANSFER IS MADE PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER
          THE  SECURITIES  ACT  AND IN  COMPLIANCE  WITH  ANY  APPLICABLE  STATE
          SECURITIES  LAWS,  OR (B) THE  HOLDER SHALL  DELIVER TO THE COMPANY AN
          OPINION OF COUNSEL IN FORM AND SUBSTANCE REASONABLY  ACCEPTABLE TO THE
          COMPANY   THAT  SUCH   TRANSFER  IS  EXEMPT   FROM  THE   REGISTRATION
          REQUIREMENTS  OF  THE  SECURITIES  ACT  AND OF  ANY  APPLICABLE  STATE
          SECURITIES LAWS.

          (d) The Company  agrees  (i) to remove the legend set forth in Section
2.3(a) upon (a) receipt of a request from the holder after  registration  of the
Warrant Shares under the Securities Act in which the holder  represents that the
Warrant  Shares are being sold or otherwise  transferred in a transaction of the
character   (including   lending  of  securities)   described  in  the  plan  of
distribution of the registration statement applicable to such Warrant Shares, or
(b)  receipt  of  an  opinion  of  counsel  in  form  and  substance  reasonably
satisfactory  to the Company  that the Warrant  Shares are eligible for transfer
without registration under the Securities Act; and (ii) to remove the legend set
forth in Section  2.3(b) with respect to Warrant  Shares that may be transferred
from time to time upon the  termination  of the  covenants  of  Section 7 of the
Common  Stock  and  Warrant  Purchase  Agreement  executed  by the  Company  and
Microsoft as of March 1, 1999 as provided for in Section 8.3 thereof.

          (e) The Company agrees,  if the holder of the Warrant is not then, and
has not then been for a period of three months,  an affiliate of the Company and
if the Warrant  Shares  have been  acquired  pursuant to Section 1.2 hereof,  to
remove  (or,  in the  event the  Warrant  Shares  are  issued  after the  second
anniversary  of the issuance  date of the Warrant,  to issue the Warrant  Shares
without the legends  specified by Sections 2.3(a) and (b)) the legends set forth
in Section 2.3(a),  (b) and (c) on and after the second  anniversary date of the
issuance of this Warrant.

          3. Adjustment of Number of Warrant Shares;  Exercise Price;  Nature of
Securities Issuable Upon Exercise of Warrants.

          3.1  Exercise  Price;  Adjustment  of Number of  Warrant  Shares.  The
Exercise  Price  set  forth  in  Section  1  hereof  and the  number  of  shares
purchasable  hereunder  shall be  subject  to  adjustment  from  time to time as
hereinafter provided.

          3.2 Reorganization,  Reclassification,  Consolidation, Merger or Sale.
If any capital  reorganization or  reclassification  of the capital stock of the
Company,  or any  consolidation or merger of the Company with another entity, or
the sale of all or  substantially  all of the Company's assets to another person
or entity  (collectively  referred to as a  "Transaction")  shall be effected in
such a way that  holders of Common  Stock shall be  entitled  to receive  stock,
securities,  cash or assets  with  respect to or in exchange  for Common  Stock,
then,  as a  condition  of such  Transaction,  reasonable,  lawful and  adequate
provisions  shall be made  whereby the holder of this Warrant  shall  thereafter
have the right to  purchase  and  receive  upon the basis and upon the terms and
conditions specified in this Warrant,  upon exercise of this Warrant and in lieu
of the Warrant Shares  immediately  theretofore  purchasable and receivable upon
the exercise of the rights represented hereby, such number, amount and like kind
of  shares  of stock,  securities,  cash or  assets as may be issued or  payable
pursuant to the terms of the Transaction  with respect to or in exchange for the
number of  shares  of  Common  Stock  immediately  theretofore  purchasable  and
receivable upon the exercise of the rights  represented hereby as if such shares
were  outstanding  immediately  prior to the  Transaction,  and in any such case
appropriate  provision  shall be made with respect to the rights and interest of
the  holders  to  the  end  that  the  provisions  hereof  (including,   without
limitation,  provisions for  adjustments of the Exercise Price and of the number
of Warrant Shares  purchasable and receivable upon the exercise of this Warrant)
shall thereafter be applicable, as nearly as may be practicable,  in relation to
any  shares of stock or  securities  thereafter  deliverable  upon the  exercise
hereof.

          3.3 Stock Splits, Stock Dividends and Reverse Stock Splits. In case at
any time the Company shall subdivide its outstanding shares of Common Stock into
a greater  number of shares,  or shall  declare and pay any stock  dividend with
respect to its outstanding stock that has the effect of increasing the number of
outstanding  shares of Common Stock,  the Exercise  Price in effect  immediately
prior to such subdivision or stock dividend shall be proportionately reduced and
the number of Warrant Shares  purchasable  pursuant to this Warrant  immediately
prior to such subdivision or stock dividend shall be proportionately  increased,
and  conversely,  in case at any time the Company shall combine its  outstanding
shares of Common Stock into a smaller  number of shares,  the Exercise  Price in
effect immediately prior to such combination shall be proportionately  increased
and the number of Warrant Shares  purchasable  upon the exercise of this Warrant
immediately prior to such combination shall be proportionately reduced.

          3.4  Issuance of Additional Shares of Common  Stock.  If at  any  time
prior to the Expiration  Date the Company shall issue any  Additional  Shares of
Common Stock (as defined below) for a consideration  per share (the  "Subsequent
Issue Price") that is less than the lesser of (a)  ninety-five  percent (95%) of
the average market price ("Average Market Price") in effect immediately prior to
such issuance  (calculated on the basis of the average  closing price for the 20
trading days preceding such issuance) and (b) one hundred  percent (100%) of the
last closing price  available  prior to such issuance (the "Market  Price";  the
lesser of the  Average  Market  Price and the Market  Price  being  referred  to
hereinafter as the "Adjustment Price"),  then, upon such issuance,  the Exercise
Price shall be reduced to the lower of the prices  calculated  in the  following
subparagraphs (a) or (b) by:

          (a)  dividing  (i) an  amount  equal to the sum of (x) the  number  of
shares of Common Stock outstanding immediately prior to such issuance multiplied
by the Exercise  Price then in effect plus (y) the aggregate  consideration,  if
any,  received by the Company in connection with such issuance by (ii) the total
number of shares of Common Stock  outstanding  immediately  after such issuance;
and

          (b)  multiplying the then existing  Exercise Price by a fraction,  the
numerator of which shall be the quotient obtained by dividing (i) the sum of (x)
the  number  of shares of Common  Stock  outstanding  immediately  prior to such
issuance   multiplied  by  the  Adjustment  Price  per  share  of  Common  Stock
immediately prior to such issuance plus (y) the aggregate consideration received
by the Company in connection with such issuance divided by (ii) the total number
of shares of Common Stock outstanding  immediately after such issuance,  and the
denominator  of which shall be the  Adjustment  Price per share of Common  Stock
immediately prior to such issuance.

          For purposes of this Section 3.4,  "Additional Shares of Common Stock"
shall mean all shares of Common  Stock  issued or issuable by the Company  after
the Original Issue Date,  other than (i) shares issued pursuant to the Company's
stock  purchase  plans,  stock  incentive  plans,  and any other Company plan or
contract  adopted for the benefit of employees,  directors or  consultants  (but
only if such  consultants  are eligible to have their shares  registered on Form
S-8),  including without  limitation options and benefits assumed by the Company
in connection with  acquisitions  and other similar  transactions,  whether such
stock purchase  plans,  stock  incentive  plans, or other plan or contract is in
effect  on the  date  hereof  or  adopted  subsequent  to the date  hereof  (the
"Employee Stock");  (ii) shares issued by the Company in an underwritten  public
offering;  (iii) shares issued by the Company in connection  with an acquisition
of a business or business assets involving  receipt of property or other noncash
consideration  where the  Company's  board of  directors  has made a good  faith
judgment that the  consideration  received is fair value for the issuance of the
shares;  provided,  however,  that this clause (iii) shall not be interpreted to
include the issuance of options,  warrants, or other Convertible  Securities (as
defined  below) that do not qualify as Employee  Stock;  and (iv) shares  issued
pursuant to rights,  warrants or options for a Subsequent  Issue Price that,  on
the date of grant of such rights,  warrants or options, is at least equal to the
lesser of (a) ninety-five  percent (95%) of the Average Market Price on the date
of such grant and (b) the Market Price on the date of such grant.

          For purposes of this Section 3.4, in the case of  securities  that are
convertible  into or exchangeable for Common Stock  ("Convertible  Securities"),
there shall be  determined  the price per share for which  Additional  Shares of
Common  Stock  are  issuable  upon the  conversion  or  exchange  thereof,  such
determination to be made by dividing (i) the total amount received or receivable
by the  Company  as  consideration  for the  issue  or sale of such  Convertible
Securities,  plus the minimum aggregate amount of additional  consideration,  if
any,  payable to the Company  upon  conversion  or exchange  thereof by (ii) the
maximum  aggregate  number of  Additional  Shares of Common Stock  issuable upon
conversion  or  exchange of all such  Convertible  Securities  for such  minimum
aggregate  amount of additional  consideration;  and such issue or sale shall be
deemed  to be an issue or sale for cash (as of the date of issue or sale of such
Convertible Securities,  whether or not then exercisable or convertible) of such
maximum  number of  Additional  Shares of Common Stock at the price per share so
determined.

          If any rights of  conversion  or  exchange  evidenced  by  Convertible
Securities the issuance of which resulted in an adjustment to the Exercise Price
and the number of Warrant Shares issuable hereunder pursuant to this Section 3.4
shall  expire  without  having  been  exercised,  or  if  any  such  Convertible
Securities  are  exercised for a  consideration  greater than or for a number of
Additional  Shares  of  Common  Stock  less  than  those  used  for  purpose  of
determining  the  adjustment to the Exercise Price provided in this Section 3.4,
the adjusted Exercise Price shall forthwith be readjusted to such Exercise Price
as would have been in effect had an adjustment with respect to such  Convertible
Securities  been made on the  basis  that the only  Additional  Shares of Common
Stock issued or sold were those issued upon the  conversion  or exchange of such
Convertible Securities,  and that they were issued or sold for the consideration
actually received by the Company upon such exercise, plus the consideration,  if
any,  actually  received  by the Company  for the  granting of such  Convertible
Securities.

          In addition,  upon adjustment of the Exercise Price under this Section
3.4, the holder hereof shall  thereafter be entitled to purchase at the Exercise
Price  resulting  from such  adjustment a number of Warrant  Shares  obtained by
multiplying the Exercise Price  immediately prior to such issuance by the number
of Warrant Shares purchasable pursuant hereto immediately prior to such issuance
and  dividing  the product  thereof by the Exercise  Price  resulting  from such
adjustment.  The  provisions of this Section 3.4 shall not apply to any issuance
of Common Stock (i) for which an adjustment  is provided for under  Sections 3.2
or 3.3 or (ii) upon  exercise  of any  option,  right or warrant of the  Company
outstanding on the Original Issue Date. Notwithstanding anything to the contrary
in this Section  3.4, in no event shall (i) the  Exercise  Price be increased or
(ii) the number of Warrant Shares purchasable hereunder be decreased pursuant to
the provisions of this Section 3.4.

          3.5 Dissolution, Liquidation or Wind-Up. In case the Company shall, at
any time prior to the exercise of this Warrant,  dissolve,  liquidate or wind up
its affairs,  the holder  hereof  shall be  entitled,  upon the exercise of this
Warrant,  to receive,  in lieu of the Warrant Shares which the holder would have
been entitled to receive,  the same kind and amount of assets as would have been
issued,   distributed  or  paid  to  such  holder  upon  any  such  dissolution,
liquidation or winding up with respect to such Warrant  Shares,  had such holder
hereof  been the  holder of record of the  Warrant  Shares  receivable  upon the
exercise  of this  Warrant on the  record  date for the  determination  of those
persons entitled to receive any such liquidating distribution.

          3.6  Accountant's  Certificate.  In each case of an  adjustment in the
Exercise Price, number of Warrant Shares or other stock,  securities or property
receivable  upon the exercise of this Warrant,  the Company shall  compute,  and
upon the holder's  request  shall at the  Company's  expense  cause  independent
public accountants of nationally  recognized standing selected by the Company to
certify such  computation,  such adjustment in accordance with the terms of this
Warrant and prepare a certificate  setting forth such  adjustment and showing in
detail the facts upon which such  adjustment is based,  including a statement of
(i) the number of shares of Common Stock of each class  outstanding or deemed to
be outstanding, (ii) the adjusted Exercise Price and (iii) the number of Warrant
Shares issuable upon exercise of this Warrant. The Company will forthwith mail a
copy of each such certificate to the holder hereof. In the event that the holder
disputes such  adjustment,  the holder shall be entitled to select an additional
firm of independent  certified public  accountants of national standing and paid
for by the holder to certify  such  adjustment  and the  Company  and the holder
shall use their good faith best efforts to agree on such adjustment based on the
reports  of the two  accounting  firms.  In the event that the  Company  and the
holder are still unable to reach  agreement as to such  adjustment,  the Company
and the holder agree to submit such determination to binding  arbitration.  Upon
determination  of such  adjustment,  the board of directors shall forthwith make
the adjustments described therein.

         4.       Anti-Dilution.

          In the event that the  Company at any time  after the  Original  Issue
Date shall pay a special dividend or make any other distribution with respect to
its Common  Stock (or any other  shares of the capital  stock of the Company for
which this Warrant becomes exercisable  pursuant to Section 3 above) in the form
of cash or other property (other than (i) a distribution to which the provisions
of Section 3.2 apply, (ii) a stock dividend subject to the provisions of Section
3.3 above or (iii) a cash dividend  announced by the Company as intended to be a
dividend  paid on a regular  periodic  basis),  at the  election  of the holder,
either:

               (i) The Exercise Price in effect  immediately prior to the record
date with respect to such distribution or issuance (the "Adjustment Date") shall
forthwith be adjusted  effective on the Adjustment Date to a price determined by
multiplying  such Exercise  Price by a fraction (x) the numerator of which shall
be the closing price of the Company's  Common Stock as publicly  reported on the
primary  exchange or market on which it is listed (the  "Exchange")  on the next
trading day following the Adjustment Date (the "Post-Event  Market Price"),  and
(y) the denominator of which shall be the average closing price of the Company's
Common  Stock as publicly  reported on the  Exchange  over the ten trading  days
preceding the Adjustment Date (the "Pre-Event Market Price") and after each such
adjustment of the Exercise Price,  the total number of shares then issuable upon
exercise of the Warrant shall be adjusted by  multiplying  such number of shares
issuable  upon  exercise of the Warrant by a fraction (x) the numerator of which
shall be the  amount  obtained  by  subtracting  the  Exercise  Price in  effect
immediately prior to the Adjustment Date from the Pre-Event Market Price for the
Company"s  Common  Stock and (y) the  denominator  of which  shall be the amount
obtained by subtracting the Exercise Price in effect  immediately  following the
Adjustment Date from the Post-Event Market Price for the Company's Common Stock;
or

               (ii) The Company  shall  deliver to the holder  hereof a dilution
fee (a "Dilution  Fee")  payable in cash on the date of payment of such dividend
or other  distribution  equal to the  number of shares of Common  Stock (or such
other  shares of stock)  issuable  upon  exercise  of this  Warrant on such date
multiplied  by the  amount  of cash and the fair  value  of any  other  property
distributed  with respect to each share of Common  Stock (or such other  stock).
The fair  value of any such other  property  shall  mean the fair  market  value
thereof on the record  date for such  dividend,  as  determined  by the board of
directors  of the Company in good faith and  supported,  upon the request of the
holder,  by an  opinion  of an  investment  banking  firm or  appraisal  firm of
recognized  national  standing  selected by the Company  and  acceptable  to the
holder.

          Notwithstanding the foregoing, in no event shall the Exercise Price be
increased  or the number of Warrant  Shares  issuable  upon  exercise  hereof be
reduced pursuant to the provisions of this Section 4.

          5. Registration;  Exchange and Replacement of Warrant;  Reservation of
Shares.

          The Company  shall keep at the  Designated  Office a register in which
the Company  shall provide for the  registration,  transfer and exchange of this
Warrant.  The  Company  shall  not at any  time,  except  upon the  dissolution,
liquidation or winding-up of the Company, close such register so as to result in
preventing or delaying the exercise or transfer of this Warrant.

          The Company  may deem and treat the person in whose name this  Warrant
is  registered  as the holder and owner hereof for all purposes and shall not be
affected by any notice to the contrary,  until  presentation of this Warrant for
registration or transfer as provided in this Section 5.

          Upon receipt by the Company of evidence reasonably  satisfactory to it
of the  loss,  theft,  destruction  or  mutilation  of this  Warrant,  and  upon
surrender and cancellation of this Warrant, if mutilated,  the Company will make
and  deliver  a new  warrant  of like  tenor,  in lieu of this  Warrant  without
requiring the posting of any bond or the giving of any security.

          The Company shall at all times  reserve and keep  available out of its
authorized  shares of Common Stock,  solely for the purpose of issuance upon the
exercise  of this  Warrant,  such  number of shares of Common  Stock as shall be
issuable upon the exercise hereof.  The Company  covenants and agrees that, upon
exercise  of this  Warrant  and  payment  of the  Exercise  Price  therefor,  if
applicable,  all Warrant  Shares  issuable upon such exercise  shall be duly and
validly issued, fully paid and non-assessable.

          6. Company Information.

          Until the exercise of this Warrant,  the Company shall deliver to each
holder hereof or of Warrant Shares one copy of each of the following items:

               (i) as soon as  available,  and in any event  within  forty-eight
(48) days  after  the end of each of the  first  three  fiscal  quarters  of the
Company's  fiscal year,  its Form 10-Q as filed with the Securities and Exchange
Commission (the "Commission") for such quarter or if the Company is not publicly
traded its unaudited interim  consolidated balance sheets of the Company and its
subsidiaries  as of  the  end of  such  quarter  and  the  related  consolidated
statements of income and cash flow of the Company and its  subsidiaries  for the
period from the beginning of the current fiscal year to the end of such quarter,
all in reasonable  detail and certified by a principal  financial officer of the
Company, as prepared in accordance with generally accepted accounting principles
("GAAP")  consistently  applied (subject to year end adjustments and the absence
of footnotes),  and fairly  presenting the consolidated  financial  position and
results of operations of the Company and its subsidiaries for such periods;

               (ii) within one hundred and twenty-three (123) days after the end
of each fiscal year of the Company,  its Form 10-K as filed with the  Commission
for such fiscal year or if the Company is not publicly  traded its  consolidated
balance  sheets of the Company and its  subsidiaries  as of the end of such year
and the related  consolidated  statements of income, cash flow and stockholders'
equity of the Company and its subsidiaries  for such fiscal year,  setting forth
in each case in  comparative  form the  consolidated  figures  for the  previous
fiscal year,  all in reasonable  detail and  accompanied  by a report thereon of
independent public  accountants of recognized  national standing selected by the
Company,  which report shall state that such consolidated  financial  statements
present fairly the financial  position of the Company and its subsidiaries as at
the dates  indicated  and the results of their  operations  and changes in their
financial  position for the periods indicated in conformity with GAAP applied on
a basis  consistent  with prior years  (except as  otherwise  specified  in such
report)  and  that  the  audit  by such  accountants  in  connection  with  such
consolidated  financial  statements  has been made in accordance  with generally
accepted auditing standards; and

               (iii)  promptly  upon  their  becoming  available,  copies of all
financial statements,  reports,  proxy statements,  notices,  documents or other
communications  sent or made available  generally by the Company to any class of
its security holders.
 
          7. Notices.

          All notices,  requests,  consents and other  communications  hereunder
shall be in  writing  and shall be deemed to have been duly made when  delivered
personally, or mailed by registered or certified mail, return receipt requested,
or telecopied  or telexed and  confirmed in writing and delivered  personally or
mailed by registered or certified mail, return receipt requested:

          (a) If to the holder of this Warrant, to the address of such holder as
shown on the books of the Company; or

          (b) If to the  Company,  to the address set forth in Section 1 of this
Warrant;

or at such other address as the holder or the Company may hereafter have advised
the other.

          8. Successors.

          All  the  covenants,   agreements,   representations   and  warranties
contained in this  Warrant  shall bind the parties  hereto and their  respective
heirs,  executors,   administrators,   distributees,   successors,  assigns  and
transferees.

          9. Law Governing.

          This Warrant shall be construed and enforced in accordance  with,  and
governed by, the laws of the State of  Washington  (not  including the choice of
law rules thereof) regardless of the jurisdiction of creation or domicile of the
Company or its successors or of the holder at any time hereof.

          10. Entire Agreement; Amendments and Waivers.

          This Warrant sets forth the entire  understanding  of the parties with
respect to the  transactions  contemplated  hereby.  The failure of any party to
seek redress for the violation or to insist upon the strict  performance  of any
term of this Warrant  shall not  constitute a waiver of such term and such party
shall be entitled to enforce such term without regard to such forbearance.  This
Warrant  may be  amended,  and any breach of or  compliance  with any  covenant,
agreement,  warranty or  representation  may be waived,  only if the Company has
obtained  the written  consent or written  waiver of the  holder,  and then such
consent or waiver shall be effective  only in the specific  instance and for the
specific purpose for which given.

          11. Severability; Headings.

          If any  term  of this  Warrant  as  applied  to any  person  or to any
circumstance is prohibited,  void, invalid or unenforceable in any jurisdiction,
such term shall, as to such  jurisdiction,  be ineffective to the extent of such
prohibition  or  invalidity  without in any way affecting any other term of this
Warrant or affecting the validity or  enforceability  of this Warrant or of such
provision in any other  jurisdiction.  The Section headings in this Warrant have
been  inserted for purposes of  convenience  only and shall have no  substantive
effect.

<PAGE>


          IN WITNESS  WHEREOF,  the Company  has caused this  Warrant to be duly
executed as of the date first written above.

 
                                            DIALOGIC CORPORATION


                                            By:________________________________
                                                Name:         
                                               Title:                       
 


Accepted and agreed:

MICROSOFT CORPORATION



By:_______________________________
   Name:
   Title:                                               
 
<PAGE>

                                     ANNEX A

                               NOTICE OF EXERCISE

                      (To be executed upon partial or full
                            exercise of the Warrant)



          The  undersigned  hereby  irrevocably  elects to exercise the right to
purchase  ___________ shares of Common Stock of ___________  Corporation covered
by the Warrant  according to the conditions hereof and herewith makes payment of
the   Exercise   Price   of   such   shares   in   full   in   the   amount   of
$____________________.


                                           By:________________________________
                                              (Signature of Registered Holder)


Dated:_______________




<TABLE>
<CAPTION>

                                  Exhibit 11.1

                              DIALOGIC CORPORATION
                       CALCULATION OF NET INCOME PER SHARE
                    (In thousands, except per share amounts)

                                                                                          Twelve months ended
                                                                                             December 31,
                                                                                      1998              1997             1996
Basic Earnings
<S>                                                                                 <C>              <C>             <C>    
Income applicable to shares used in
     Calculation of net income per share                                          $ 36,608          $ 21,752         $ 25,548
Shares used in calculation of net income per share:
Weighted average shares outstanding                                                 16,010            15,931           15,654
Net income per share                                                              $   2.29          $   1.37         $   1.63


Diluted Earnings
Income applicable to shares used in
     Calculation or net income per share                                          $ 36,608          $ 21,752         $ 25,548
Shares used in calculation of net income per share:
Weighted average shares outstanding                                                 16,010            15,931           15,654
Dilutive  effect of stock options after  application  of treasury  stock
method                                                                                 548               667              763
Number of shares in calculation of net income
     per share                                                                      16,558            16,598           16,417
Net income per share                                                               $  2.21           $  1.31          $  1.56

</TABLE>


EXHIBIT 13

Selected Financial Data
- --------------------------------------------------------------------------------

The following selected consolidated financial data should be read in conjunction
with  the  Company's  Consolidated  Financial  Statements  and the  Notes to the
Consolidated Financial Statements.

<TABLE>
<CAPTION>

- -------------------------------------------------------------------- ---------- ------------ ----------- ----------- ------------
Amounts in thousands, except per share data
Year ended December 31,                                                   1998         1997        1996        1995         1994
- -------------------------------------------------------------------- ---------- ------------ ----------- ----------- ------------
<S>                                                                 <C>         <C>            <C>         <C>         <C>    
Statement of Income Data:
Revenues                                                              $293,525    $261,310)    $213,604    $168,652    $127,235)
Cost of goods sold                                                     108,567      98,329)      84,764      66,829      50,841)
                                                                     ---------- ------------ ----------- ----------- ------------
Gross profit                                                           184,958     162,981)     128,840     101,823      76,394)
Research and development expense                                        65,350      51,530)      40,666      29,045      21,650)
Selling, general and administrative expenses                            80,228      79,098)      60,052      47,673      34,646)
Asset impairment                                                         5,297           -)           -           -           -)
                                                                     ---------- ------------ ----------- ----------- ------------
Operating income                                                        34,083      32,353)      28,122      25,105      20,098)
Merger costs                                                                 -           -)           -       1,294           -)
Interest income - net                                                    3,099       1,637)       2,440       2,036       1,214)
Net realized (losses) gains on available for sale securities                32          (4)       9,175         309         (15)
Gain on sale of subsidiary                                              23,384           -)           -           -           -)
                                                                     ---------- ------------ ----------- ----------- ------------
Income before provision for income taxes                                60,598      33,986)      39,737      26,156      21,297)
Provision for income taxes                                              23,990      12,234)      14,189       9,854       5,408)
                                                                     ---------- ------------ ----------- ----------- ------------
Net income                                                           $  36,608   $  21,752)   $  25,548    $ 16,302    $ 15,889)
                                                                     ---------- ------------ ----------- ----------- ------------
Income per share:
  Basic                                                                 $ 2.29      $ 1.37)     $  1.63     $  1.06
  Diluted                                                               $ 2.21      $ 1.31)     $  1.56     $  1.02
                                                                     ---------- ------------ ----------- ----------- ------------
Shares used in the calculation of pro forma income per share:
  Basic                                                                 16,010      15,931)      15,654      15,340
  Diluted                                                               16,558      16,598)      16,417      16,039


Pro Forma Data:(1)
Income before provision for income taxes as reported                                                                    $21,297)
Provision for income taxes                                                                                                7,689)
Net income                                                                                                              $13,608)
Income per share:
  Basic                                                                                                                        $
                                                                                                                            .99)
  Diluted                                                                                                                      $
                                                                                                                            .94)
Shares used in the calculation of pro forma income per share:
  Basic                                                                                                                  13,774)
  Diluted                                                                                                                14,509)
Balance Sheet Data:
Working capital                                                       $139,559    $119,920)    $103,909     $76,997     $55,711)
Total assets                                                           216,983     182,404)     147,270     117,362      81,864)
Long-term obligations, net of current maturities                         2,475       2,481)       2,926       2,259       2,465)
Shareholders' equity(2)                                                175,677     144,865)     124,842      92,757      66,796)
- -------------------------------------------------------------------- ---------- ------------ ----------- ----------- ------------
<FN>
(1) During 1994 through the IPO in April 1994 (the "S Period"),  the Company was
an S corporation and, accordingly,  was not subject to federal and certain state
corporate income taxes.  The pro forma statement of income  information has been
computed as if the Company had been subject to federal and all applicable  state
corporate income taxes during the S period, based on the statutory tax rates and
the tax laws then in effect.  

(2) The Company declared an aggregate of $2.5 million in S Corporation dividends
in 1994. No other dividends were declared during the periods presented.
</FN>

</TABLE>

<PAGE>

Managements  Discussion  and  Analysis  of  Financial  Condition  and Results of
OperationsM
- --------------------------------------------------------------------------------

Business:  Dialogic  designs,  manufactures  and markets  hardware  and software
enabling  technologies for "computer  telephony" systems.  "Computer  telephony"
(CT)  is  the  term  used  to  encompass  a wide  variety  of  technologies  and
applications  that use the  information  processing  capabilities  of a computer
(often a server) to add intelligence to telephone functions and to combine these
functions with data processing.  The Company is headquartered in Parsippany, New
Jersey,  with regional  headquarters in Tokyo,  Japan;  Brussels,  Belgium;  and
Buenos Aires,  Argentina.  Dialogic employs approximately 1,250 people worldwide
and has  offices  in over  twenty  countries  around the  world.  The  following
discussion  and analysis  should be read in  conjunction  with the  Consolidated
Financial Statements and related Notes to the Consolidated Financial Statements.

Percentage of Revenues

          The following  table sets forth,  for the periods  indicated,  certain
statements of income data as a percentage of total revenues:

<TABLE>
<CAPTION>


                                                                   Percent of Sales                     Percent Change
- ---------------------------------------------------------- ------- ----------------- ---- ----- ----------------------- ------
Year ended December 31,                                       1998       1997        1996       1998       1997        1996
                                                                                                 vs.         vs.        vs.
                                                                                                1997       1996        1995
- ---------------------------------------------------------- ---------- ----------- ---------- ---------- ----------- ----------
<S>                                                           <C>         <C>        <C>         <C>        <C>         <C>  
Revenues                                                      100.0%      100.0%     100.0%      12.3%      22.3%)      26.7%
Gross profit                                                   63.0%       62.4%      60.3%      13.5%      26.5%)      26.5%
Research and development expense                               22.3%       19.7%      19.0%      26.8%      26.7%)      40.0%
Selling,  general and  administrative  expense (including
amortization of goodwill)                                      27.3%       30.3%      28.1%       1.4%      31.7%)      26.0%
Asset impairment                                                1.8%          -%         -%     100.0%         -%)         -%
Merger costs                                                      -%          -%         -%         -%         -%)     100.0%
Interest income - net                                           1.1%        0.6%       1.1%      89.3%     (32.9)%      19.8%
Net realized gains on available for sale securities               -%          -%       4.3%         -%    (100.0)%     100.0%
Gain on sale of assets of subsidiary                            8.0%          -%         -%     100.0%         -%)   
                                                                                                                           -%
- ---------------------------------------------------------- ---------- ----------- ---------- ---------- ----------- ----------
Income before provision for income taxes                       20.7%       13.0%      18.6%      78.3%     (14.5)%      51.9%
Provision for income taxes                                      8.2%        4.7%       6.6%      96.1%     (13.8)%      44.0%
- ---------------------------------------------------------- ---------- ----------- ---------- ---------- ----------- ----------
Net income                                                     12.5%        8.3%      12.0%    68.2(2)   (14.9)(1)   56.7(1))
- ---------------------------------------------------------- ---------- ----------- ---------- ---------- ----------- ----------
<FN>

(1)      During 1996,  the Company  recorded a pre-tax  gain of $9.1 million as a result of its first  quarter sale
     of a portion of its equity  position in VCS.  Excluding this gain,  the  percentage  increase of 1997 compared
     with 1996 would have been 10.1%.  The percentage increase for 1996 as compared to 1995 would have been 21.8%.
(2)      During 1998,  the Company  recorded a pre-tax gain of $23.4  million as a result of its first quarter sale
     of a subsidiary  and a charge of $5.3 million for the write down of certain  impaired  assets.  Excluding this
     gain and charge,  the  percentage  increase of 1998 compared with 1997 would have been 25.6%.  See notes 2 and
     3 of the Company's Notes to the Consolidated Financial Statements.
</FN>

</TABLE>


Fiscal 1998 Compared to Fiscal 1997

Revenue:  For the year ended December 31, 1998,  consolidated  revenue increased
12.3% to $293.5  million from $261.3  million in fiscal 1997.  Revenue growth in
the United  States  increased  8.9% or $18.2  million.  Revenue  reported in the
United States includes export sales primarily to Canada,  Latin America,  Korea,
China,  Southeast Asia, Middle East,  Australia and New Zealand.  Revenue growth
related  to export  sales  increased  47.2% or $15.8  million  year  over  year.
Moderate revenue growth within the United States was impacted by market weakness
and loss of fax market share. Despite global economic issues, revenues generated
from Japan and Belgium  (including  all of Western  Europe)  increased  25.3% to
$69.3  million  from $55.3  million  in the  preceding  year.  The  increase  in
international  revenue was  primarily  due to a 37.3% growth to $57.7 million in
revenue from Belgium.

During  1998,  Dialogic's  worldwide  revenue  growth  continued to be favorably
impacted by  increased  sales of  high-density  products.  During the year,  the

<PAGE>

Company continued to release commercial  production of its new products based on
DM3  architecture.  DM3  products  are  now  available  in  PCi,  cPCI,  and VME
configurations  utilizing industry standards such as H.323, G.723.1,  G.711, GSM
and T.38. Gross Profit:  Consolidated gross profit percentage for 1998 was 63.0%
compared  to 62.4% for the prior year.  The  increase  in margins  reflects  the
continued  effects of the Company's  cost  reduction  efforts across all product
lines  and the  effect  of  cost  savings  related  to a full  year  of  turnkey
manufacturing which was started in 1997.

Expenses:  Selling,  general, and administrative  expenses decreased to 27.3% of
revenue in fiscal  1998 as  compared to 30.3% in the  previous  year,  primarily
reflecting a leveraging of expenses over a larger  revenue base. The increase in
expense  dollars year over year is primarily  attributable  to additional  sales
commissions on a higher revenue base. Research and development expense increased
$13.8  million  to 22.3% of revenue  as  compared  to 19.7% of revenue in fiscal
1997.  The Company  continues to maintain a high level of R&D investment to meet
the needs of its customers and to obtain new design wins. The Company  continues
to  invest  engineering  resources  in  the  development  of  the  Dialogic  DM3
Mediastream Resource Architecture ("DM3") as well as development of IP telephony
and open switch hardware and software products.

Asset  Impairment:  During the first  quarter of 1998,  the Company  undertook a
strategic  review of its business and product  offerings.  At the  conclusion of
this review, the Company determined it would no longer allocate resources to its
Dianatel  product line.  Activities to sell and upgrade  Dianatel  products were
discontinued and employees working on Dianatel related products were diverted to
other  activities.  As a result of this decision,  management has concluded that
the  carrying  value of the  goodwill  that arose on the  purchase  of  Dianatel
Corporation  was no longer  justifiable,  and the  Company  recorded  a non-cash
impairment  charge of $3.5 million  related to the  write-down of goodwill.  The
discontinuance  of this product line will not have a  significant  effect on the
revenues or earnings of the Company in future periods.

          During  the  first  quarter  of 1998,  the  Company  upgraded  certain
internal information  technology systems.  Accordingly,  the Company took a $1.8
million  charge ($1.3  million  after-tax)  to reduce the carrying  value of the
internal  information  technology  assets  that will no longer be  utilized  and
therefore provide no future benefit to the Company.

Interest  Income:  The Company recorded $3.1 million net interest income for the
fiscal year ended  December 31,  1998,  compared to $1.6 million in the previous
fiscal  year.  Interest  income in 1998 of $1.7 million was  generated  from the
Company's investments in tax-free securities as compared to $1.8 million in 1997
from tax-free investments. In addition, the Company generated approximately $1.6
million of interest income on short-term bank deposits.  The increase  primarily
reflects the growth in the Company's short-term bank deposits due in part to the
proceeds  from the sale of assets of a  subsidiary  during the first  quarter of
1998. The Company continues to invest a substantial amount of its available cash
in tax-free securities.

Gain on Sale of Subsidiary: On February 17, 1998, the Company completed the sale
of the principal assets and operations of Spectron Microsystems,  Inc., a wholly
owned subsidiary,  to Texas  Instruments Inc. for $26.0 million,  resulting in a
pre-tax gain of $23.4 million.

Taxes: The effective tax rate for fiscal 1998 was 39.6% as compared to 36.0% for
fiscal  1997.  The increase is  attributable  to the  write-down  of the non-tax
deductible goodwill of Dianatel  Corporation in the first quarter of 1998 in the
amount of $3.5 million,  as well as the higher effective tax rate on the gain on
sale of assets of a subsidiary.

Net  Income:  Net  income for  fiscal  year 1998 was $36.6  million or $2.21 per
diluted  share as compared to $21.8  million or $1.31 per diluted  share for the
previous  year.  Net income for the current year  included an after-tax  gain of

<PAGE>

$14.0  million or $0.84 per diluted  share on the first  quarter asset sale of a
subsidiary and charges related to asset impairment of $4.8 million  after-tax or
$0.29 per diluted share for the write-down of certain assets.

<PAGE>

Fiscal 1997 Compared to Fiscal 1996

Revenue:  For the year ended December 31, 1997,  consolidated  revenue increased
22.3% to $261.3  million from $213.6  million in fiscal 1996.  Revenue growth in
the United States increased 20.1% or $34.5 million. Revenue growth in the United
States was impacted by longer than originally anticipated cycles for new product
design wins.  International  revenues,  primarily  Belgium and Japan,  increased
31.4% to $55.3  million  from $42.1  million the  preceding  year.  During 1997,
Dialogic's worldwide revenue growth was favorably impacted by increased sales of
high-density  products.  Sales from high-density  products  represented 55.6% of
total 1997 revenue versus 48.7% of the total revenue in 1996.

Gross Profit:  Consolidated  gross profit percentage for 1997 was 62.4% compared
to 60.3% for the prior year.  The  increase in margins  reflects  the  continued
effects of the Company's cost reduction efforts across all product lines. During
1997, the Company  substantially  completed its move of production to a selected
turnkey  manufacturer  resulting in further cost savings.  In addition,  margins
were  impacted  by  favorable  product mix  related to the  increased  volume of
high-density  products,  offset  partially by a one-time charge of $600 thousand
for the settlement of royalties related to a potential patent infringement.

Expenses:  As a  percentage  of  consolidated  revenues,  selling,  general  and
administrative  expenses  increased to 30.3% in fiscal 1997 as compared to 28.1%
in the  previous  year.  The  increase  in selling,  general and  administrative
expenses is attributable to the continuing  growth of domestic and international
sales  and  marketing   efforts   associated  with  new  product   launches  and
establishment  of  additional  sales  offices,  costs  associated  with internal
technology   infrastructure  and  the  costs  associated  with  the  hiring  and
relocation  of  executive  staff  members.   Research  and  development  expense
increased  $10.9  million to 19.7% of revenue as compared to 19.0% of revenue in
fiscal  1996.  The increase  reflects  the  Company's  continued  investment  of
engineering  resources  related to Dialogic's DM3 Architecture  announced in the
first quarter of 1997. The Company recognized  amortization  expense of goodwill
associated with the acquisition of Dianatel  Corporation of  approximately  $1.0
million in fiscal 1997 as compared to $386 thousand in the prior year.

Interest  Income:  The Company recorded $1.6 million net interest income for the
fiscal year ended  December 31,  1997,  compared to $2.4 million in the previous
fiscal year.  Interest  income in 1997 of $1.8 million was  primarily  generated
from the  Company's  investments  in tax free  securities  as  compared  to $2.5
million in 1996 from tax free  investments  and from the  Company's  election to
convert  accrued  interest on the note of Voice Control  Systems,  ("VCS").  The
Company  continues  to  invest a  majority  of its  available  cash in  tax-free
securities.

Taxes:  The effective tax rate for fiscal 1997 was 36.0%,  compared to 35.7% for
fiscal 1996.

Net Income:  Net income for fiscal  1997 was $21.8  million or $1.31 per diluted
share,  compared to $25.5  million or $1.56 per diluted  share for the  previous
year.  Net  income in fiscal  1996  included  an  after-tax  gain on the sale of
securities of VCS of $5.8 million or $0.35 per diluted share.

Inflation,   Foreign  Currency  and  Other  Matters  Inflation  has  not  had  a
significant impact on the Company's  operating results to date. Foreign currency
transaction gains and losses are included within the Company's selling,  general
and  administrative   expenses.  The  majority  of  the  Company's  revenue  and
receivables  are  denominated in the US dollars.  Based on the foreign  currency
exposure of  nonfunctional  currency  denominated  receivables  and  payables at
December  31,  1998,  a 10%  adverse  change  in the  currency  rates  would not
materially  affect the Company's  financial  position,  results of operations or
cash flows.  While the amounts of such gains or losses have not been significant
to the  Company's  results  to date,  as the  Company  continues  to expand  its
international operations, exposure to gains and losses on international currency
transactions  may increase and may be material to quarterly and annual  results.
The consolidated  financial statements of the Company reflect the translation of
the  functional  currencies  of its  foreign  subsidiaries  under  Statement  of
Financial Accounting Standards ("SFAS") No. 52.

<PAGE>

Year 2000

The Year 2000 issue is  primarily  the result of computer  programs or databases
using a two-digit  format,  as opposed to four  digits,  to represent a calendar
year. Some computer  systems will be unable to correctly  interpret dates beyond
the year 1999,  which could  cause a system  failure or other  computer  errors,
leading to a  disruption  in the  operation  or  accuracy of such  systems.  The
Company has  undertaken a company-wide  study and testing  program to locate and
cure any Year 2000  issues in the  products or systems on which it relies and in
the  products it offers for sale or license.  The Company  believes its internal
systems, including both its financial operating (information technology) systems
and  non-information  technology systems are Year 2000 compliant.  The Company's
financial  operating systems have been upgraded to a Year 2000 compliant release
within the context of its normal  operating  environment.  Such  upgrade was not
accelerated in anticipation of Year 2000 issues.  No material  additional  costs
were  incurred in upgrading the Company's  internal  systems.  This phase of the
Company's  Year 2000 study is  completed.  The Company has been and  anticipates
continuing  to work jointly  with  strategic  vendors and  business  partners to
identify  any Year  2000  issues  that  may  impact  the  Company.  The  Company
anticipates  that  evaluation  and corrective  actions,  if any, will be ongoing
throughout  1999.  To date,  the Company has not  identified  any such  problems
requiring corrective action that will result in a material adverse impact on the
Company.  However,  there can be no assurance  that the companies with which the
Company does business will achieve Year 2000 compliance in a timely fashion,  or
that such failure to comply by another company will not have a material  adverse
effect on the Company. The Company believes the products it currently offers for
sale or license are all Year 2000 compliant,  and that the cost to remediate any
previously sold product that is not Year 2000 compliant will not be material.

          The Company  has and will incur  internal  staff costs  related to the
above  initiative.  The Company  maintains a web site and has  responded to many
inquiries from customers  regarding Year 2000 compliance of its products.  These
costs are not  considered to have a material  impact on the Company's  operating
results and have not been quantified.

          Based on the  assessment  effort to date, the Company does not believe
that the Year 2000 issue will have a material  adverse  effect on its  financial
condition,   results  of   operations,   or  cash  flows.   This   represents  a
forward-looking  statement under the Private Securities Litigation Reform Act of
1995.  Actual  results could differ  materially  from the  Company's  belief and
expectations,  which are based on  certain  assumptions  and  expectations  that
ultimately may prove to be inaccurate. Potential sources of risk include (a) the
inability  of principal  suppliers to be Year 2000 ready,  which could result in
delays  in  product  deliveries  from  such  suppliers;  (b)  disruption  of the
distribution channel,  including  transportation  vendors; (c) customer problems
which could affect revenue demand; (d) undiscovered  issues related to Year 2000
compatibility  which could have a material  adverse  impact.  The Company's Year
2000  assessment  is ongoing and the  consideration  of  contingency  plans will
continue to be evaluated as new information  becomes  available.  At this stage,
however,  the Company  has not  developed a  comprehensive  contingency  plan to
address  situations  that may result if any of the third  parties upon which the
Company is  dependent is unable to achieve  Year 2000  compliance.  The need for
such a contingency plan will be evaluated throughout 1999. 

Liquidity and Capital  Resources 

          As of December  31,  1998,  the  Company  had working  capital of $140
million  and a current  ratio  (i.e.,  the ratio of  current  assets to  current
liabilities)  of 4.7 to 1, compared  with working  capital of $120 million and a
current ratio of 4.7 to 1 at December 31, 1997.

          The Company's  consolidated  cash,  cash  equivalents  and  marketable
securities  increased by $21.8 million  during  fiscal 1998.  Cash provided from
operations  was $27.8  million,  while $1.6  million was  provided by  investing
activities and $7.8 million used in financing activities.

          The   Company's   investing   activities   in  fiscal  1998   included
expenditures of $15.0 million for property and equipment,  primarily  associated
with  the  expansion  of  the  Company's   headquarters  and  $6.9  million  for
investments in companies Dialogic believes to be strategic partners. The Company
received  $26.0  million  from  proceeds  of the  sale  of  assets  of  Spectron
Microsystems in the first quarter of 1998.

<PAGE>

          Net cash used in financing activities was $7.8 million. On November 6,
1997,  the Board of  Directors  authorized a share  repurchase  program of up to
800,000 shares to be bought over three years.  In 1998, the Company  repurchased
350,000 shares of the Company's  common stock  pursuant to the repurchase  plan,
accounting  for  approximately  $9.9  million of such  activities.  To date,  an
aggregate 400,000 shares of treasury stock have been purchased for $11.8 million
cash.  In addition,  the Company  realized  proceeds  from the exercise of stock
options and issuance of common stock of $2.8 million.

          The Company has financed its operations  primarily  through cash flows
from  operations  as well as from  the net  realized  gain  from its sale of VCS
securities,   and  the  net  proceeds  from  the  sale  of  assets  of  Spectron
Microsystems Inc. Dialogic is a party to a credit facility pursuant to which the
Company may borrow up to $30 million on an unsecured  basis for working  capital
purposes.  See  notes  2, 4 and 6 of the  Notes  to the  Company's  Consolidated
Financial Statements.

          The Company  believes that the  combination of its current  liquidity,
cash generated from operations and the credit  available under its existing bank
lines will be sufficient to meet its  liquidity and capital  requirements.  This
statement  represents a forward-looking  statement under the Private  Securities
Litigation Reform Act of 1995. The actual  sufficiency of such capital resources
could differ  materially from the Company's  expectations,  depending  primarily
upon the extent to which  unanticipated  capital  requirements may arise and the
extent to which unanticipated events may have a materially adverse effect on the
Company's profitability.

New Accounting Pronouncements

In June of 1998,  the FASB  issued  SFAS No.  133,  "Accounting  for  Derivative
Instruments and Hedging Activities." This statement  establishes  accounting and
reporting standards for derivative  instruments and requires  recognition of all
derivatives as assets or liabilities in the statement of financial  position and
measurement of these  instruments at fair value.  The statement is effective for
fiscal years  beginning after June 15, 1999.  Management  believes that adopting
this  statement  will not have a  material  impact  on the  financial  position,
results of operations, or cash flows of the Company.

Risks and Uncertainties

Dialogic's business is subject to certain risks which are described in detail in
Item 1 of the Dialogic  Annual  Report on Form 10-K for its year ended  December
31, 1998. Such risks include,  but are not limited to, product demand and market
acceptance  risks; the effect of worldwide  economic  conditions;  the impact of
competitive  products and pricing;  the Company's  ability to enter new markets;
the adoption of new standards and the Company's ability to meet those standards;
product  development  problems;  effects  of  competitive  forces  and  pace  of
deregulation  in the  telecommunications  industry;  the status of  intellectual
property rights; commercialization and technological difficulties;  capacity and
supply  constraints or  difficulties;  the impact of  acquisitions or mergers of
customers,  competitors or suppliers;  constraints on capital resources; general
business conditions;  and the effect of the Company's accounting policies.  Such
factors,  as well as announcements of technological  innovations or new products
by  Dialogic,   its  competitors  or  third-parties;   consolidations  or  other
substantial  changes  within  or  affecting  the  computer  telephony  industry;
quarterly  variations  in the  Company's  results of  operations;  shortfalls in
Dialogic's  revenues,  gross  margins or earnings as  compared  with  investment
analysts' expectations,  regulatory developments, capital market conditions; and
general and economic  conditions,  may also cause substantial  volatility in the
market price of the Company's common stock. The Company continually  reevaluates
its operations and business  structure and may, from time to time,  take actions
to restructure operations accordingly.

<PAGE>

Independent Auditors' Report
- --------------------------------------------------------------------------------

To the Board of Directors and Shareholders of
Dialogic Corporation
Parsippany, New Jersey 07054

          We have  audited  the  accompanying  consolidated  balance  sheets  of
Dialogic  Corporation and subsidiaries as of December 31, 1998 and 1997, and the
related consolidated  statements of income,  statements of comprehensive income,
shareholders'  equity and cash  flows for each of the three  years in the period
ended December 31, 1998. These financial  statements are the  responsibility  of
the Company's  management.  Our responsibility is to express an opinion on these
financial statements based on our audits.

          We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

          In our opinion, such consolidated financial statements present fairly,
in all material  respects,  the financial  position of Dialogic  Corporation and
subsidiaries  as of  December  31,  1998  and  1997,  and the  results  of their
operations  and their cash flows for each of the three years in the period ended
December 31, 1998, in conformity with generally accepted accounting principles.


DELOITTE & TOUCHE LLP

Parsippany, New Jersey
January 27, 1999
(except for Note 10, as to which the date is March 2, 1999)



<PAGE>

<TABLE>
<CAPTION>

Consolidated Balance Sheets                                                     
- --------------------------------------------------------------------------------

Assets
- --------------------------------------------------------------------------------
(Amounts in thousands, except share data)
 December 31,                                                                                          1998)             1997)
- --------------------------------------------------------------------------------------------- ---------------- -----------------
Current assets:
<S>                                                                                                  <C>               <C>     
     Cash and cash equivalents                                                                       $39,774)          $18,764)
     Marketable securities                                                                            44,594)           43,774)
     Accounts receivable (net of allowance for doubtful
          accounts of $1,871 and $1,280, respectively)                                                55,094)           45,186)
     Inventory:
          Raw materials                                                                                3,939)            8,827)
          Work in process                                                                              5,073)            6,724)
          Finished goods                                                                              12,835)           14,941)
                                                                                              ---------------- -----------------
                                                                                                      21,847)           30,492)
     Deferred income taxes                                                                             9,130)            7,190)
     Other current assets                                                                              7,295)            6,842)
                                                                                              ---------------- -----------------
          Total current assets                                                                       177,734)          152,248)
                                                                                              ---------------- -----------------

Property and equipment:
     Leasehold improvements                                                                            6,872)            5,049)
     Furniture and fixtures                                                                            8,959)            6,809)
     Equipment                                                                                        43,056)           35,084)
                                                                                              ---------------- -----------------
                                                                                                      58,887)           46,942)
     Less accumulated depreciation and amortization                                                  (31,483)          (24,327)
                                                                                              ---------------- -----------------
                                                                                                      27,404)           22,615)
Other assets                                                                                          11,845)            7,541)
                                                                                              ---------------- -----------------

TOTAL ASSETS                                                                                        $216,983)         $182,404)
                                                                                              ---------------- -----------------
</TABLE>


<TABLE>


Liabilities and Shareholders' Equity

- --------------------------------------------------------------------------------------------- ---------------- -----------------
(Amounts in thousands except share data)
December 31,                                                                                             1998              1997
Current liabilities:
<S>                                                                                                  <C>               <C>     
     Accounts payable                                                                                $13,746)          $14,361)
     Accrued salaries and benefits                                                                     8,683)            6,390)
     Accrued royalties                                                                                 1,289)            1,825)
     Accrued expenses                                                                                  9,211)            7,986)
     Income taxes payable                                                                              5,088)            1,237)
     Current maturities of long-term liabilities                                                         158)              529)
          Total current liabilities                                                                   38,175)           32,328)

Long-term liabilities                                                                                  2,475)            2,481)
Deferred income taxes                                                                                    656)            2,730)
Commitments and contingencies (Note 8)                                                                     -)                 -

Shareholders' Equity:
     Preferred stock, no par value, stated value $0.01 - 10,000,000 shares authorized:
          none issued                                                                                      -)                -)
     Common stock, no par value, stated value $0.01 - 60,000,000 shares authorized:
           16,287,541 and 16,100,862 shares issued, respectively                                         217)              214)
     Additional paid-in capital                                                                       56,575)           51,941)
     Retained earnings                                                                               130,631)           94,023)
     Accumulated other comprehensive income                                                              755)              599)
     Unearned compensation - restricted stock                                                           (702)                -)
     Treasury stock, at cost; 400,000 and 50,000 shares, respectively                                (11,799)           (1,912)
          Total shareholders' equity                                                                 175,677)          144,865)
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY                                                          $216,983)         $182,404)


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

The accompanying notes are an integral part of the Consolidated Financial Statements.

</TABLE>

<PAGE>

<TABLE>

- --------------------------------------------------------------------------------
Consolidated Statements of Income                                               
- --------------------------------------------------------------------------------

(Amounts in thousands, except per share data)
December 31,                                                                                   1998         1997)          1996
- -------------------------------------------------------------------------------------- ------------- ------------- -------------
<S>                                                                                        <C>          <C>            <C>     
Revenues                                                                                   $293,525     $261,310)      $213,604
Cost of goods sold                                                                          108,567       98,329)        84,764
                                                                                       ------------- ------------- -------------
Gross profit                                                                                184,958      162,981)       128,840
Research and development expense                                                             65,350       51,530)        40,666
Selling, general and administrative expenses                                                 80,228       79,098)        60,052
Asset impairment                                                                              5,297            -)             -
                                                                                       ------------- ------------- -------------
  Operating income                                                                           34,083       32,353)        28,122
Interest income - net                                                                         3,099        1,637)         2,440
Net realized gains (losses) on available for sale securities                                     32           (4)         9,175
Gain on sale of subsidiary                                                                   23,384            -)             -
                                                                                       ------------- ------------- -------------
Income before provision for income taxes                                                     60,598       33,986)        39,737
Provision for income taxes                                                                   23,990       12,234)        14,189
                                                                                       ------------- ------------- -------------
Net income                                                                                 $ 36,608     $ 21,752)      $ 25,548
                                                                                       ------------- ------------- -------------

                                                                                       ------------- ------------- -------------
Net income per share:
  Basic                                                                                     $  2.29      $  1.37)       $  1.63
  Diluted                                                                                   $  2.21      $  1.31)       $  1.56
                                                                                       ------------- ------------- -------------

                                                                                       ------------- ------------- -------------
Weighted average number of common shares outstanding:
  Basic                                                                                      16,010       15,931)        15,654
  Diluted                                                                                    16,558       16,598)        16,417
                                                                                       ------------- ------------- -------------


The accompanying notes are an integral part of the Consolidated Financial Statements.
</TABLE>

<PAGE>
<TABLE>


Consolidated Statements of Comprehensive Income                                        Dialogic Corporation and Subsidiaries
- -------------------------------------------------------------------------------------------------------------------

(Amounts in thousands)
Year ended December 31,                                                                       1998)         1997)         1996)

<S>                                                                                       <C>           <C>           <C>      
Net income:                                                                               $ 36,608)     $ 21,752)     $ 25,548)

Foreign currency translation adjustment:
     Foreign currency translation gains (losses)                                               598)         (400)         (359)

Net unrealized gains (losses) on investment securities:
     Net  unrealized  (losses)  gains arising  during the 
     period (net of tax of $237, $2,540 and                                                   (421)       (4,631)         4,721
     ($2,392), respectively)
     Reclassification  adjustment for (gains)  losses  
     included in net income (net of tax of $11,                                                (21)            2)       (5,872)
     ($2) and $3,303, respectively)
     Net unrealized (losses) gains on investment securities                                   (442)       (4,629)       (1,151)
          Total other comprehensive income (loss)                                               156       (5,029)       (1,510)

Comprehensive income                                                                      $ 36,764)     $ 16,723)     $ 24,038)

The accompanying notes are an integral part of the Consolidated Financial Statements.
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

Consolidated Statements of Shareholders' Equity
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                       
                                                                                                  Accumulated Comprehensive
                                                                              Unearned                      Income           Total
                                                        Additional          Compensation          Cumulative  Unrealized     Share-
                              Number   Shares   Common  Paid-in   Retained  Restricted  Treasury  Translation Gains/Losses  holders'
  (In thousands)              Common  Treasury  Stock   Capital   Earnings    Stock      Stock    Adjustment  On Investments Equity
                              ------------------------------------------------------------------------------------------------------

<S>                            <C>      <C>     <C>   <C>        <C>           <C>        <C>         <C>         <C>       <C>     
  Balance, January 1, 1996     15,492    -      $206    $38,690    $46,723   $   -      $   -       $  373        $6,765    $92,757)
  ----------------------------------------------------------------------------------------------------------------------------------
  Exercise of stock options       180    -         3      1,201        -         -          -                        -        1,204)
  Issuance of common stock
     in connection with
     acquisitions                  55    -         1      3,794        -         -          -          -             -        3,795
  Currency translation loss         -    -         -         -         -         -          -         (359)             -      (359)
  Net unrealized losses on
     available for sale             -    -         -         -         -         -          -          -       (1,151)       (1,151)
     securities
  Issuance  of  common   stock
     under employee stock          47    -         -      1,368        -         -          -          -             -        1,368
     purchase plan
  Tax benefit from exercise of
       stock options                -    -         -      1,680        -         -          -          -             -        1,680
  Net income                        -    -         -         -      25,548       -          -          -             -       25,548
  ----------------------------------------------------------------------------------------------------------------------------------
  Balance, December 31, 1996   15,774    -       210     46,733     72,271       -          -         14        5,614)      124,842
  ----------------------------------------------------------------------------------------------------------------------------------
  Purchases of treasury stock       -   (50)       -         -         -         -      (1,912)        -             -       (1,912)
  Exercise of stock options       234    -         3      1,431        -         -          -          -             -        1,434
  Issuance of common stock as
       directors' fees              3    -         -         85        -         -          -          -             -           85
  Currency translation loss         -    -         -         -         -         -          -       (400)            -         (400)
  Net unrealized losses on                                                                            
       available for sale
       securities, net of tax       -    -         -         -         -         -          -          -        (4,629)      (4,629)
  Issuance of common  stock
       under employee stock        90    -         1      1,716        -         -          -          -             -        1,717
       purchase plan
  Tax benefit from exercise 
       of stock options             -    -         -      1,976        -         -          -          -             -        1,976
  Net income                        -    -         -         -      21,752       -          -          -             -       21,752
  ----------------------------------------------------------------------------------------------------------------------------------
  Balance, December 31, 1997   16,101   (50)     214     51,941     94,023       -      (1,912)     (386)           985     144,865
  ----------------------------------------------------------------------------------------------------------------------------------
  Purchases of treasury stock       -  (350)       -         -         -         -      (9,887)        -             -       (9,887)
  Exercise of stock options       122    -         2        869        -         -          -          -             -          871
  Issuance of common stock as
       directors' fees              2    -         -         86        -         -          -          -             -           86
  Net unearned compensation
       restricted stock             -    -         -        933        -       (702)        -          -             -          231
  Currency translation gain         -    -         -         -         -         -          -        598            -           598
  Net unrealized losses on
       available for sale
       securities,                  -    -         -         -         -         -          -          -           (442)       (442)
       net of tax
  Issuance  of  common   stock
       under employee stock        62    -         1      1,816        -         -          -          -             -        1,817)
       purchase plan
  Tax benefit from exercise of
       stock options                -    -         -        930        -         -          -          -             -          930
  Net income                        -    -         -        -       36,608       -          -          -             -       36,608
  ----------------------------------------------------------------------------------------------------------------------------------
  Balance, December 31, 1998   16,287  (400)    $217    $56,575   $130,631    ($702)  ($11,799)     $212           $543    $175,677
  ----------------------------------------------------------------------------------------------------------------------------------

  The accompanying notes are an integral part of the Consolidated Financial Statements.

</TABLE>

<PAGE>

Consolidated Statements of Cash Flows                                           
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>

(In thousands)
Year ended December 31,                                                                        1998          1997          1996
- -------------------------------------------------------------------------------------- ------------- ------------- -------------
Cash flows from operating activities:
<S>                                                                                       <C>           <C>           <C>      
Net income                                                                                $ 36,608)     $ 21,752)     $ 25,548)
Adjustments for non-cash items included in net income:
          Depreciation and amortization                                                      8,634)        9,496)        6,103)
          Asset impairment                                                                   5,297)            -)            -)
          Deferred income taxes                                                             (3,310)       (2,642)         (587)
          Non-cash interest income                                                               -)            -)       (1,069)
          Net realized (gain) loss on available for sale securities                            (32)            4)       (9,175)
          Gain on sale of subsidiary                                                       (23,384)            -)            -)
          Other                                                                                675)          909)        2,493)
          Changes in operating assets and liabilities                                        3,331)        1,496)      (15,504)
                                                                                       ------------- ------------- -------------
                    Net cash flows provided by operating activities                         27,819)       31,015)        7,809)
                                                                                       ------------- ------------- -------------
Investing Activities:
          Capital expenditures                                                             (15,233)      (10,712)      (10,722)
          Purchase of available for sale securities                                        (18,442)      (25,656)      (45,937)
          Purchase of investments (cost method)                                             (6,875)            -)            -)
          Proceeds from sales of available for sale securities                              16,270)       12,187)       44,044)
          Proceeds from sales of other investments                                               -)            -)       10,100)
          Proceeds from sale of subsidiary, net of cash disposed                            25,869)            -)            -)
          Other                                                                                  -)            -)         (820)
                                                                                       ------------- ------------- -------------
                    Net cash flows provided by (used in) investing activities                1,589)      (24,181)       (3,335)
                                                                                       ------------- ------------- -------------
Financing Activities:
          Proceeds from short-term borrowings                                                    -)            -)       12,625)
          Repayments on short-term borrowings                                                    -)            -)      (12,625)
          Exercise of stock options                                                            871)        1,434)         1,204
          Purchase of treasury stock                                                        (9,887)       (1,912)            -)
          Issuance of common stock                                                           1,817)        1,717)        1,368)
          Other                                                                               (646)         (757)         (826)
                                                                                       ------------- ------------- -------------
                    Net cash flows provided by (used in) financing activities               (7,845)          482)        1,746)
                                                                                       ------------- ------------- -------------
Increase in cash and cash equivalents                                                       21,563)        7,316)        6,220)
Effect of exchange rate on cash                                                               (553)         (400)         (359)
Cash and cash equivalents, beginning of year                                                18,764)       11,848)        5,987)
                                                                                       ------------- ------------- -------------
Cash and cash equivalents, end of year                                                    $ 39,774)     $ 18,764)     $ 11,848)
                                                                                       ============= ============= =============

Change in operating assets and liability components:
          (Increase) in accounts receivable                                              $ (10,238)    $ (10,480)     $ (8,510)
          (Increase) decrease in inventory                                                   9,008)       (2,731)       (3,480)
          (Increase) in other current assets                                                  (425)       (1,680)       (1,910)
          Increase (decrease) in accounts payable                                             (492)        7,318)       (2,393)
          Increase in accrued expenses                                                       5,478)        9,069)          789)
                                                                                       ------------- ------------- -------------
                    Change in operating assets and liabilities                               3,331)      $ 1,496)     $(15,504)
                                                                                       ============= ============= =============


Supplemental disclosures of cash flow information:
          Cash paid during the year for:
          Interest`                                                                         $  165)       $  108)      $    95)
          Income taxes                                                                      18,898)       14,379)       13,739)
Supplemental disclosures of non-cash investing
          and financing activities:
Tax benefit from exercise of stock options                                                     930)        1,979)        1,680)
Stock and options issued for acquisition of business                                             -)            -)        3,795)
Issuance of restricted common stock                                                            933)            -)            -)
- -------------------------------------------------------------------------------------- ------------- ------------- -------------

The accompanying notes are an integral part of the Consolidated Financial Statements.
</TABLE>

<PAGE>

Notes to Consolidated Financial Statements                                      
- --------------------------------------------------------------------------------

1. Summary of Significant Accounting Policies

Nature of Business - Dialogic  designs,  manufactures  and markets  hardware and
software  enabling  technologies  for "computer  telephony"  systems.  "Computer
telephony" (CT) is a term used to encompass a wide variety of  technologies  and
applications  that use the  information  processing  capabilities  of a computer
(often a server) to add intelligence to telephone functions and to combine these
functions with data processing.  Dialogic products are used in voice, fax, data,
voice recognition,  speech synthesis and call center management CT applications.
Dialogic  products  are  sold  globally  to  original  equipment  manufacturers,
value-added  resellers and service  providers  through both a direct sales force
and distributors.  The Company is headquartered in Parsippany,  New Jersey, with
regional  headquarters in Tokyo,  Japan;  Brussels,  Belgium;  and Buenos Aires,
Argentina.

Principles of Consolidation - The consolidated  financial statements include the
accounts  of  Dialogic  Corporation  and  its  subsidiaries  (collectively,  the
"Company"). Intercompany accounts and transactions have been eliminated.

Use of Estimates - The  preparation of financial  statements in conformity  with
generally accepted  accounting  principles  requires  management to make certain
estimates  and  assumptions  that  affect  the  reported  amount of  assets  and
liabilities  and disclosure of contingent  assets and liabilities at the date of
the  financial  statements  and the  reported  amounts of revenues  and expenses
during the reported period. Actual results could differ from these estimates.

Reclassifications  -  Certain  reclassifications  were made to the 1996 and 1997
consolidated financial statements to conform to the 1998 presentation.

Revenue Recognition - The Company recognizes revenues when products are shipped.
Revenue  from  maintenance  and support  contracts  is deferred  and  recognized
ratably over the service period.

Inventory  -  Inventory  is  stated at the  lower of cost  (first-in,  first-out
method) or market.

Property and  Equipment - Property and equipment are carried at cost and include
expenditures for major  improvements which  substantially  increase their useful
life.  Repairs  and  maintenance  are  expensed  as  incurred.  Depreciation  of
equipment,  software and fixtures is computed on the  straight-line  method over
estimated useful lives of one to seven years.  Equipment under capital lease and
leasehold  improvements  are  amortized  over  the  shorter  of  lease  terms or
estimated useful life.

Long-lived  Assets -  Whenever  events  indicate  that the  carrying  values  of
long-lived  assets may not be  recoverable,  the Company  evaluates the carrying
values of such assets using future  undiscounted  cash flows.  If the sum of the
expected  undiscounted future cash flows is less than the carrying amount of the
asset,  the Company will  recognize an impairment  loss equal to the  difference

<PAGE>

between  the fair value and  carrying  value of such  asset.  During  1998,  the
Company recorded an impairment loss (see note 3).  Management  believes that, as
of December 31, 1998, the carrying value of long-lived assets is appropriate.

Fair Value of Financial  Instruments - The estimated fair value of the Company's
financial  instruments,  which  include  cash  and  cash  equivalents,  accounts
receivable and accounts payable  approximates  their carrying value.  Marketable
securities are carried at fair value at each balance sheet date.

Foreign Currency  Translation - The functional currency of the Company's foreign
operations is the applicable local currency. The translation from the applicable
foreign currencies to U.S. dollars is performed for balance sheet accounts using
the  exchange  rates in effect at the  balance  sheet date and for  revenue  and
expense accounts using a weighted  average exchange rate during the period.  The
gains and losses resulting from such  translations are included in shareholders'
equity.  Gains or  losses  resulting  from  foreign  currency  transactions  are
included in the  Statement of  Operations,  and include  gains  (losses) of $126
thousand,   ($750)  thousand  and  ($324)  thousand  in  1998,  1997  and  1996,
respectively.

Income Taxes - The Company  recognizes  deferred tax assets and  liabilities for
the  expected  future tax  consequences  of  temporary  differences  between the
financial  reporting  and tax bases of existing  assets and  liabilities.  These
assets and  liabilities  are measured using  currently  enacted rates.  Deferred
income tax assets are  recognized to the extent  realization of such benefits is
more likely than not.

Research  and  Development  Expenses - Research  and  development  is charged to
expense in the year incurred.

Software  Development  Expenses - The  development of new software  products and
substantial  enhancements to existing  software products is expensed as incurred
until  technological  feasibility  has  been  established,  at  which  time  any
additional  costs would be capitalized in accordance with Statement of Financial
Accounting  Standards  ("SFAS")  No. 86,  "Accounting  for the Costs of Computer
Software  to be Sold,  Leased,  or  Otherwise  Marketed."  Because  the  Company
believes its current  process for developing  software is essentially  completed
concurrently with the establishment of technological feasibility,  no costs have
been capitalized to date.

Cash  Equivalents  and  Marketable   Securities  -  Cash   equivalents   include
certificates  of  deposit,   government  securities  and  time  deposits,   with
maturities  of  three  months  or  less  at the  time  of  purchase.  Marketable
securities  are  comprised of  investments  in municipal  bonds as well as Voice
Control Systems, Inc. ("VCS") common stock.

          The   Company    classifies    these    marketable    securities    as
available-for-sale securities in accordance with the provisions of SFAS No. 115,
"Accounting for Certain Investments in Debt and Equity  Securities."  Unrealized
gains and losses for these  securities  are excluded  from earnings and reported
net of tax as a separate component of stockholders'  equity.  Realized gains and
losses on sales of  investments,  as  determined  on a  specific  identification
basis,  are included in the consolidated  statements of income.  Fair values are
determined  by  reference  to market  prices for  securities  as quoted based on
publicly  traded  exchanges or as determined by a municipal bond pricing service
which  utilizes  current  trade,  bids,  offers and other  specific  data at the
valuation date.

Other Assets - Other assets include amounts associated with long-term royalties,
license fees,  deposits,  and investments in certain companies  operating in the

<PAGE>

computer  telephony  industry.  As the  investments  in these  companies are not
readily marketable and represent less than 20% voting interest,  the investments
are carried at cost and periodically assessed for potential impairment in value.
The investment balances totaled $6.9 million at December 31, 1998. Additionally,
at December 31, 1997,  other assets  included  $3.5 million (net of  accumulated
amortization of $1.5 million) of goodwill. See note 3.

Concentration  of Risk - Financial  instruments  which  potentially  subject the
Company  to  concentration  of  credit  risk  consist  principally  of  accounts
receivable  from  customers in the  computer  telephony  industry.  This risk is
mitigated by the large number of customers in the  Company's  customer  base and
the Company's  procedures for extending  credit and  collection of  receivables.
Additionally,  the Company has  subcontracted  one supplier to  manufacture  the
majority of the Company's  product.  The Company  believes that other  suppliers
have the  capability  to perform this service but that  changing  suppliers  may
cause delays and additional cost to the Company.

Income Per Share - The Company  computes income per share in accordance with the
provisions of SFAS No. 128, "Earnings per Share." SFAS No. 128 requires the dual
presentation of basic and diluted earnings per share ("EPS"). Basic EPS excludes
dilution and is computed by dividing net income available to common stockholders
by the weighted  average  number of common  shares  outstanding  for the period.
Diluted EPS reflects the potential dilution that could occur if stock options or
other  contracts  to issue  common  stock were  exercised  and  resulted  in the
issuance  of common  stock  that then  shared in the  earnings  of the  Company.
Diluted  EPS is  computed  using the  treasury  stock  method when the effect of
common stock equivalents would be dilutive. All prior periods have been restated
to comply with the  provisions  of SFAS No. 128.  The  dilutive  effect of stock
options on weighted  average shares  outstanding was 548 thousand,  667 thousand
and 763 thousand for 1998, 1997 and 1996, respectively.

Comprehensive  Income - In 1998,  the Company  adopted SFAS No. 130,  "Reporting
Comprehensive  Income," and has restated  prior years'  financial  statements to
conform to the  reporting  standard.  SFAS No.  130  establishes  standards  for
reporting and displaying  comprehensive  income and its components in a full set
of  general-purpose  financial  statements.  Comprehensive  income  includes all
changes in  stockholders'  equity  during a period except those  resulting  from
investments by owners and distributions to owners.  The adoption of SFAS No. 130
resulted  in  revised  and  additional  disclosures  but  had no  effect  on the
financial position, results of operations or cash flows of the Company.

Segment  Reporting - In 1998,  the Company  adopted  SFAS No. 131,  "Disclosures
about Segments of an Enterprise and Related Information." SFAS No. 131 specifies
the presentation and disclosure of operating segment information reported in the
annual and interim reports issued to stockholders.  SFAS No. 131 supersedes SFAS
No.  14,  "Financial  Reporting  for  Segments  of a Business  Enterprise,"  and
requires that segment information of earlier years be restated to conform to the
new  standard.  The adoption of SFAS No. 131 resulted in revised and  additional
disclosures but had no effect on the financial position,  results of operations,
or cash flows of the Company.

Accounting  Pronouncements  - In June of 1998,  the FASB  issued  SFAS No.  133,
"Accounting for Derivative  Instruments and Hedging  Activities." This statement
establishes  accounting and reporting  standards for derivative  instruments and
requires  recognition  of  all  derivatives  as  assets  or  liabilities  in the
statement of position and  measurement of these  instruments at fair value.  The
statement  is  effective  for  fiscal  years  beginning  after  June  15,  1999.
Management believes that adopting this statement will not have a material impact
on the financial position, results of operations, or cash flows of the Company.

<PAGE>

2.  Divestment
- --------------------------------------------------------------------------------

On February 17, 1998, the Company  completed the sale of the principal assets of
Spectron Microsystems Inc., a wholly owned subsidiary,  to Texas Instruments for
$26.0 million,  resulting in a pre-tax gain of $23.4 million. The disposition of
these assets will not have a  significant  effect on the revenues or earnings of
the Company in future periods.

3.  Asset Impairment
- --------------------------------------------------------------------------------

During the first quarter of 1998,  the Company  undertook a strategic  review of
its business  and product  offerings.  At the  conclusion  of this  review,  the
Company determined it would no longer allocate resources to its Dianatel product
line. Activities to sell and upgrade Dianatel products were ceased and employees
working on Dianatel related products were diverted to other  activities.  As the
result of this decision, management has concluded that the carrying value of the
goodwill  that  arose on the  purchase  of  Dianatel  Corporation  was no longer
justifiable,  and the  Company  recorded  a non-cash  impairment  charge of $3.5
million  related to the  write-down  of  goodwill.  The  discontinuance  of this
product line will not have a  significant  effect on the revenues or earnings of
the Company in future periods.

          During  the  first  quarter  of 1998,  the  Company  upgraded  certain
internal information  technology systems.  Accordingly,  the Company took a $1.8
million  charge ($1.3  million  after-tax)  to reduce the carrying  value of the
internal  information  technology  assets  that will no longer be  utilized  and
therefore provide no future benefit to the Company.

          Management  believes  the  recognition  of these  impairments  were in
accordance  with the provisions of SFAS No. 121,  "Accounting for the Impairment
of Long-Lived Assets and for Long-Lived Assets to be Disposed of."


<PAGE>

4. Available For Sale Securities
- --------------------------------------------------------------------------------

The following is a summary of the  available for sale  securities as of December
31, 1998 and 1997:

<TABLE>

Amounts in thousands

                                                                                              Gross        Gross
                                                                                            Unrealized  Unrealized   Estimated
1998                                                                               Cost       Gains       Losses     Fair Value
- ------------------------------------------------------------------------------- ----------- ----------- ------------ -----------
<S>                                                                               <C>          <C>         <C>         <C>    
Municipal bonds                                                                   $41,898      $ 246       $ -         $42,144
Equity investment                                                                   1,954        496         -           2,450
- ------------------------------------------------------------------------------- ----------- ----------- ------------ -----------
     Total available for sale securities                                          $43,852      $ 742       $ -         $44,594
- ------------------------------------------------------------------------------- ----------- ----------- ------------ -----------


1997
- ------------------------------------------------------------------------------- ----------- ----------- ------------ -----------
Municipal bonds                                                                   $39,863      $ 149       $ -         $40,012
Equity investment                                                                   1,954      1,808         -           3,762
- ------------------------------------------------------------------------------- ----------- ----------- ------------ -----------
     Total available for sale securities                                          $41,817     $1,957       $ -         $43,774
- ------------------------------------------------------------------------------- ----------- ----------- ------------ -----------

</TABLE>

The cost and  estimated  fair value of debt  securities at December 31, 1998, by
contractual maturity, are as follows:

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------- ---------- -----------
Amounts in thousands
- --------------------------------------------------------------------------------------------------------- ---------- -----------
                                                                                                                     Estimated
                                                                                                            Cost     Fair Value
                                                                                                          ---------- -----------
<S>                                                                                                        <C>        <C>
  
1999                                                                                                       $10,013    $10,044
2000                                                                                                        21,513     21,706
2001                                                                                                        10,372     10,394
- --------------------------------------------------------------------------------------------------------- ---------- -----------
The net realized  gains on sales of debt  securities  totaled  approximately  $32 in 1998, and the gross   $41,898    $42,144
realized losses totaled approximately $4 in 1997.
- --------------------------------------------------------------------------------------------------------- ---------- -----------

</TABLE>

          The Company's equity  investment is in shares of VCS common stock. The
fair  values  of the  Company's  investments  in VCS  have  been  determined  by
reference  to the  market  prices  for VCS stock as quoted  on  publicly  traded
exchanges on the respective  valuation dates. At December 31, 1998 and 1997, the
Company  held  1,399,715  shares of VCS common  stock.  

          VCS  is a  supplier  to  the  Company  of  certain  proprietary  voice
recognition  technologies.  During 1998, 1997 and 1996, the Company's  purchases
from VCS amounted to $3,305,000, $3,075,000 and $2,953,000, respectively.

5.  Employee Benefit Plans
- --------------------------------------------------------------------------------

Profit  Sharing  Plan - The Company has a quarterly  profit  sharing  program in
which all employees participate, except certain members of senior management. If
certain profit thresholds are met in a quarter, a pool is created based upon the

<PAGE>

achievement  of targeted  profit  goals.  Payments  are made to  employees  on a
quarterly  basis.  For the years ended  December  31, 1998,  1997 and 1996,  the
Company recorded expenses under the program of $1.8 million,  $1.5 million,  and
$978 thousand, respectively.


<PAGE>

Savings Plan - The Company has a savings  plan,  which  qualifies  under Section
401(k)  of the  Internal  Revenue  Code.  Under  the  plan,  participating  U.S.
employees  may  defer  up to 15% of  their  pre-tax  salary,  but no  more  than
statutory limits. The Company contributes a discretionary  match,  currently set
at forty-two cents for each dollar contributed by a participant up to 5% of that
participant's salary, with a maximum contribution of $3,360 per participant. The
Company's  matching  contributions to the savings plan were $858 thousand,  $725
thousand and $458 thousand in 1998, 1997 and 1996, respectively.

Stock  Compensation  Plans - At  December  31,  1998,  the  Company  had certain
stock-based  compensation  plans which are described  below. The Company applies
APB Opinion  No. 25 and related  Interpretations  in  accounting  for its plans.
Accordingly,  no compensation  cost has been recognized for either type of plan.
Had compensation  cost been determined in accordance with the method of SFAS No.
123,  "Accounting for Stock-Based  Compensation," based on the fair value at the
grant date for  awards  during  1998,  1997 and 1996,  under  those  plans,  the
Company's  net income and  income per share  would have been  reduced to the pro
forma amounts indicated below:

<TABLE>
<CAPTION>

- ------------------------------------------------------------------------- ----------------- ----------------- ----------------
Amounts in thousands, except per share amounts
- ------------------------------------------------------------------------- ----------------- ----------------- ----------------
                                                                                      1998              1997             1996
- ------------------------------------------------------------------------- ----------------- ----------------- ----------------
Net income:
<S>                                                                               <C>               <C>              <C>     
     As reported                                                                  $ 36,608          $ 21,752         $ 25,548
     Pro forma                                                                    $ 31,527          $ 19,126         $ 22,340
- ------------------------------------------------------------------------- ----------------- ----------------- ----------------
Income per share:
     As reported:
       Basic                                                                        $ 2.29            $ 1.37           $ 1.63
       Diluted                                                                      $ 2.21            $ 1.31           $ 1.56
     Pro forma:
       Basic                                                                        $ 1.97            $ 1.20           $ 1.43
       Diluted                                                                      $ 1.90            $ 1.15           $ 1.36
- ------------------------------------------------------------------------- ----------------- ----------------- ----------------
</TABLE>

          The  effects  of  applying  SFAS  No.  123  for  providing  pro  forma
disclosures are not likely to be  representative  of the effects on reported net
income  for the  future  years  because  options  vest  over  several  years and
additional  awards  generally  are made each year.  The fair value of the 29,874
stock options  issued in  connection  with the 1996  acquisition  of Dianatel is
included in the Dianatel  purchase  price and therefore  does not affect the pro
forma amounts indicated above.

Stock Option Plans - The Company has stock option plans for directors,  officers
and other  employees  which  provides  for  non-qualified  and  incentive  stock
options. At December 31, 1998, 1,168,994 shares were available for future grants
under the plans.  All options have been  granted at exercise  prices at or above
fair  market  value at the date of grant  and vest over  periods  of up to seven
years. All options have a maximum term of ten years.

          On October 25,  1998,  the Company  authorized  the grant of new stock
options to certain  employees  who agreed to cancel stock options which had been
granted to them  during  1997 and 1998.  The  options  were  reissued  effective

<PAGE>

October 25, 1998 at $19.1875 per share, the fair market value on the date of the
grant.  All employees were eligible to  participate in the reissue  program with
the exception of Executive  officers and highly  compensated  senior management,
and 829,225  stock  options were issued under this grant.  The reissued  options
will vest over a four-year period  beginning  October 25, 1998. The options will
expire on October 25, 2006.


<PAGE>

          For the purposes of the pro forma  amounts  indicated  above and other
disclosures,  the fair value of each option  grant was  estimated on the date of
grant  using  the   Black-Scholes   option  pricing  model  with  the  following
assumptions:

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------- ------------- ------------- -------------
Year of grant                                                                                 1998%         1997%         1996%
- -------------------------------------------------------------------------------------- ------------- ------------- -------------
<S>                                                                                             <C>           <C>           <C>
Volatility                                                                                      58%           79%           75%
Weighted average risk free interest rate                                                       6.0%          6.5%          6.3%
Expected life (yrs)                                                                              5             5             6
- -------------------------------------------------------------------------------------- ------------- ------------- -------------
No dividends are assumed to be paid during the expected life of any option.
- -------------------------------------------------------------------------------------- ------------- ------------- -------------
</TABLE>

          A summary  of the status of the  Company's  stock  option  plans as of
December 31, 1998,  1997 and 1996,  and changes  during the years ended on those
dates is presented below:

<TABLE>
<CAPTION>

                                               1998                           1997                            1996
                                    ---------------------------    ----------------------------    ---------------------------
                                     Shares     Weighted-Average     Shares     Weighted-Average   Shares      Weighted-Average
                                      (000)     Exercise Price        (000)     Exercise Price       (000)     Exercise Price
- ----------------------------------- ----------- ---------------    ------------ ---------------    ----------- ---------------
Options outstanding
<S>                                    <C>         <C>               <C>           <C>               <C>          <C>    
     at beginning of year              2,629)      $ 21.56)          2,269)        $ 16.00)          1,962)       $ 12.00
Granted                                1,856)        26.96)            711)          34.36)            626)         31.00
Exercised                               (122)         7.08)           (235)           6.12)           (173)          5.00
Forfeited/canceled                    (1,184)        33.20)           (116)          27.80)           (146)         29.00
                                    -----------                    ------------                    -----------
Options outstanding
     at end of year                    3,179)      $ 20.97)          2,629)        $ 21.56)          2,269)       $ 16.00
                                    -----------                    ------------                    -----------

Options exercisable at year end        1,119)                          925)                            855)
Weighted average fair
     value of options granted
     during the year                          $15.07                         $23.83                          $23.00
- ----------------------------------- --------------------------- -- ---------------------------- -- ---------------------------
</TABLE>


          The  following  table  summarizes   information  about  stock  options
outstanding at December 31, 1998:

<TABLE>
<CAPTION>

- --------------------------------- ----------------- ---------------- ----------------- -- ----------------------------------
                                                      Options                                      Options Exercisable
                                                    Outstanding
- --------------------------------- ----------------- ---------------- ----------------- -- ----------------------------------
                                       Number       Weighted-Average
                                    Outstanding        Remaining     Weighted-Average          Number       Weighted-Average
                                                                                            Exercisable
Range of Exercise Prices            at 12/31/98       Contractual     Exercise Price        at 12/31/98     Exercise Price
                                       (000)          life (yrs)                               (000)
- --------------------------------- ----------------- ---------------- -----------------    ----------------- ----------------
<S>  <C>                               <C>               <C>             <C>                   <C>            <C>     
$    1.60   to $  4.93                  271               2.7             $ 3.81                257            $   3.81
     5.73   to    9.33                  307               4.7               7.33                265          
                                                                                                                   7.44
    10.67   to   18.88                  321               5.4              15.09                242               14.76
    19.00   to   28.75                1,692               7.5              21.86                267               24.29
    30.00   to   55.75                  588               7.4              36.67                 88               37.41
- --------------------------------- ----------------- ---------------- ----------------- -- ----------------- ----------------

</TABLE>

Restricted  Stock  Awards - In 1998,  the Company made  restricted  stock awards
totaling 29 thousand shares. The fair value of these awards is $934 thousand and
the awards  vest  between  six  months  and five  years from date of grant.  The
unearned compensation has been recorded as a contra account within stockholders'
equity and is amortized to  compensation  expense over the vesting  period.  The
weighted average fair value of restricted stock awards during 1998 was $32.05.

<PAGE>

Employee  Stock  Purchase Plan - On April 28, 1995,  the Company's  stockholders
approved the  establishment  of the Employee  Stock  Purchase Plan (the "ESPP").
Under the ESPP, employees meeting certain eligibility  requirements may elect to
contribute  up to ten percent of their  compensation  to purchase the  Company's
common  stock at a purchase  price equal to 85% of the fair market  value of the
stock at the  beginning  or end of each  offering  period,  whichever  is lower.
Persons  holding more than 5% of common stock in the Company are not eligible to
participate  in the ESPP.  Under the ESPP,  the Company  reserved for issuance a
total of 300,000 shares. (See Note 10 of the Company's Notes to the Consolidated
Financial Statements). Approximately 40% of eligible employees have participated
in the ESPP during the last three years. Under the ESPP, the employees purchased
or  committed to purchase  80,205,  86,603 and 49,674  shares in 1998,  1997 and
1996,  respectively.  For the purpose of the pro forma amounts  indicated above,
compensation cost was based on the fair value of the employee's  purchase rights
on the date of grant which was estimated using the  Black-Scholes  model and the
assumptions  noted above,  with the exception of expected option life, which was
assumed to be .25  years.  The fair value of those  purchase  rights  granted in
1998,  1997 and  1996  was  $454  thousand,  $508  thousand  and $588  thousand,
respectively.

6.  Credit Facilities
- --------------------------------------------------------------------------------

The Company  maintains a credit  facility  with a lender,  pursuant to which the
Company may borrow up to $30 million on an unsecured  basis for working  capital
purposes.  Loans made under this agreement  bear interest,  at the option of the
Company,   primarily  at  the  rate  equal  to  the  lenders'   base  rate  less
three-quarter percent or LIBOR. Future borrowing under this facility will be due
and payable on June 1, 1999. At December 31, 1998 and 1997,  no borrowings  were
outstanding pursuant to this facility.  Under this facility, $3 million has been
reserved for letters of credit,  of which none has been utilized at December 31,
1998.

- --------------------------------------------------------------------------------
7.  Provision for Income Taxes
- --------------------------------------------------------------------------------

Components of the provision for income taxes are as follows:

<TABLE>
<CAPTION>

- ------------------------------------------------------------------------ ----------------- ----------------- ------------------
Amounts in thousands                                                                 1998              1997               1996
- ------------------------------------------------------------------------ ----------------- ----------------- ------------------
Provision for income taxes:
<S>                                                                              <C>                <C>               <C>     
     Federal                                                                     $18,549)           $7,848)           $11,744)
     Foreign                                                                       2,609)            2,273)               868)
     State                                                                         2,832)            2,113)             1,577)
                                                                         ----------------- ----------------- ------------------
          Total                                                                   23,990)          $12,234)           $14,189)
                                                                         ================= ================= ==================
Components of income tax provision:
Current
     Federal                                                                     $21,750)          $10,447)           $12,343)
     Foreign                                                                       2,609)            2,259)               824)
     State                                                                         2,941)            2,170)             1,616)
                                                                         ----------------- ----------------- ------------------
           Total current                                                          27,300)           14,876)            14,783)
Deferred
     Federal                                                                      (3,201)           (2,599)              (599)
     Foreign                                                                           -)               14)                44)
     State                                                                          (109)              (57)               (39)
                                                                         ----------------- ----------------- ------------------
          Total deferred                                                          (3,310)           (2,642)              (594)
                                                                         ----------------- ----------------- ------------------
          Total                                                                  $23,990)          $12,234)           $14,189)
                                                                         ================= ================= ==================

</TABLE>

<PAGE>

          Deferred  income  taxes  reflect  the net  tax  effects  of  temporary
differences between the carrying amounts of assets and liabilities for financial
reporting purposes and the amounts calculated for income tax purposes.

          The  principal  components of the deferred tax assets and deferred tax
liabilities are as follows:

<TABLE>
<CAPTION>

- ------------------------------------------------------------------------ ----------------- ----------------- ------------------
Amounts in thousands                                                                                  1998)              1997)
- ------------------------------------------------------------------------ ----------------- ----------------- ------------------
Deferred tax assets:
<S>                                                                                                <C>                <C>     
Reserves                                                                                           $ 7,636)           $ 5,548)
Foreign tax credit carryforward                                                                      4,880)             2,271)
Deferred revenue and deferred rent                                                                     723)               746)
Other                                                                                                1,711)             1,066)
                                                                                           ----------------- ------------------
                                                                                                    14,950)             9,631)
Deferred tax liabilities:
Unrealized gains on available for sale securities                                                     (268)              (973)
Undistributed earnings of foreign subsidiaries                                                      (5,780)            (3,332)
Depreciation                                                                                          (219)              (695)
Other                                                                                                 (209)              (171)
                                                                                           ----------------- ------------------
                                                                                                    (6,476)            (5,171)
                                                                                           ----------------- ------------------
Net deferred tax assets                                                                            $ 8,474)           $ 4,460)
                                                                                           ================= ==================

 Reconciliations between the U.S. federal statutory rate and the effective tax rate are as follows:

- ------------------------------------------------------------------------ ----------------- ----------------- ------------------
December 31,                                                                                                  
                                                                                   1998)             1997)              1996)
- ------------------------------------------------------------------------ ----------------- ----------------- ------------------
Federal taxes at statutory rate                                                    35.0%)            35.0%)             35.0%)
State taxes, net of federal income tax benefit                                      4.5%)             4.7%)              2.6%)
Foreign income subject to a rate different from U.S. rate                           0.9%)             1.4%)              0.5%)
Research and development tax credit                                                (1.8)%            (4.0)%             (1.8)%
Foreign sales corporation benefit                                                  (1.8)%            (2.6)%             (0.8)%
Tax exempt income                                                                  (1.0)%            (1.4)%             (0.6)%
Non-deductible amortization                                                         2.0%)             1.0%)              0.3%)
Other                                                                               1.8%)             1.9%)              0.5%)
                                                                         ----------------  ----------------- ------------------
Total effective tax rate                                                           39.6%)            36.0%)             35.7%)
                                                                         ================  ================= ==================

</TABLE>

          The  Company  has  provided  for  U.S.  federal  income  taxes  on the
undistributed  earnings  of its  non-U.S.  subsidiaries.  The  Company has a net
operating loss carryforward of approximately $600 thousand in Japan, expiring in
the year 2002.

<PAGE>

8.  Commitments and Contingencies
- --------------------------------------------------------------------------------

(a) Lease Commitments - Equipment with a net book value of $86 thousand and $202
thousand  at  December  31,  1998 and  1997,  respectively  (net of  accumulated
depreciation of $71 thousand and $681 thousand), is leased under capital leases.

          The Company leases certain  office/warehouse space and equipment under
operating  leases which expire at various times through 2005. Total rent expense
under operating leases amounted to approximately $8.0 million,  $6.8 million and
$5.8 million for the years ended December 31, 1998, 1997 and 1996, respectively.
At  December  31,  1998,   future   minimum  lease   payments  are  as  follows:

Amounts in thousands
                                                   Operating          Capital 
Year ending December 31,                             Leases           Leases
- --------------------------------------------------------------------------------
1999                                              $ 8,370              $ 40 
2000                                                7,892                40 
2001                                                6,844                20 
2002                                                6,434                -
2003                                                5,902                -
Thereafter                                          8,141                -
- --------------------------------------------------------------------------------
Total                                              43,583               100
- --------------------------------------------------------------------------------
Amounts representing interest                                           (14)
- --------------------------------------------------------------------------------
Present value of minimum lease payments                                  86
- --------------------------------------------------------------------------------
Current portion                                                          33
- --------------------------------------------------------------------------------

(b) Legal  Proceedings  - In June 1995,  the Company  entered  into a settlement
agreement that resulted in the dismissal of various legal proceedings involving,
among others, the Company and Brooktrout  Technology,  Inc.  ("Brooktrout").  In
November 1995,  Brooktrout filed a complaint in the United States District Court
for the District of Massachusetts  naming the Company,  its GammaLink subsidiary
(since merged into the Company) and its Chairman of the Board as defendants. The
complaint  sought to rescind the  settlement  agreement  and obtain  unspecified
compensatory  and  punitive  damages  on  the  basis  of  allegations  that  the
defendants   fraudulently  induced  Brooktrout  to  enter  into  the  settlement
agreement.  Dialogic denied the claims as baseless, moved to dismiss and filed a
counterclaim.  In December  1996, the District Court entered an order of summary
judgment  against   Brooktrout   dismissing  its  fraud  claims.   Subsequently,
Brooktrout  amended its  complaint to add a claim for breach of the implied duty
of good faith and fair  dealing.  On  February 9, 1999,  the  parties  reached a
settlement in this litigation in which Brooktrout dismissed all remaining claims
against  Dialogic and its chairman with  prejudice,  Brooktrout  granted certain
additional  patent rights to Dialogic,  and Dialogic  dismissed its counterclaim
against  Brooktrout with prejudice.  Neither  Dialogic nor its chairman made any
payment to Brooktrout in this matter.

<PAGE>

          Separately,  the Company's Spectron subsidiary had sued Brooktrout for
patent infringement. This case was transferred to the District of Massachusetts.
Dialogic  believes it has retained the rights to maintain  this lawsuit  despite
the February 1998 sale of the Spectron  assets.  Brooktrout has moved to dismiss
this case  claiming that Dialogic no longer has standing to enforce the patents.
Trial in this case is now scheduled for June 14, 1999.

          During the third  quarter of 1996, a complaint was filed in New Jersey
Superior  Court against the Company and certain of its  directors  alleging that
the  defendants  breached  principles  of common  law fraud in  connection  with
certain public statements made prior to the Company's July 8, 1996 press release
announcing  preliminary  results  for the  quarter  ended  June  30,  1996.  The
complaint  sought monetary  damages on behalf of a purported class of purchasers
of  the  Company's  Common  Stock.  On  February  18,  1998,  on  motion  by the
defendants,  the complaint was  dismissed by the court with  prejudice.  Time to
appeal the dismissal has expired.

          The Company is also engaged in other legal proceedings  arising in the
ordinary course of business,  the results of which  proceedings are not expected
to have a  material  adverse  effect  on the  Company's  consolidated  financial
condition, results of operations or liquidity. Management intends to defend each
of the above-mentioned legal proceedings vigorously.

<PAGE>

9.  Segments and Geographic Information
- --------------------------------------------------------------------------------

In 1998,  the Company  adopted SFAS No. 131,  "Disclosures  about Segments of an
Enterprise and Related Information." SFAS No. 131 specifies the presentation and
disclosure of operating  segment  information.  The Company operates and manages
its business under one segment,  "Computer  Telephony."  "Computer Telephony" is
the term used to encompass a wide variety of technologies and applications  that
use the  information  processing  capabilities of a computer (often a server) to
add intelligence to telephone functions and to combine those functions with data
processing.  Management has reached the conclusion that the Company  operates as
one  segment  after  considering  a variety of factors  including  the nature of
products sold,  production process,  its customer base, and distribution methods
and determining that they are similar entity wide. The Company primarily derives
its  revenue  from the sale of  telephony  boards  that are  offered  as modular
building  blocks that  enable its  customers -  primarily  VARs,  OEMs,  systems
integrators,  service providers and applications developers - to design computer
telephony  systems  that  meet  the  applications   demands  of  their  end-user
customers. No one customer accounts for more than 5% of total revenue.

Information  about the  Company's  operations in different  geographic  areas at
December 31, 1998, 1997 and 1996, and the years then ended is presented below:

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
Amounts in thousands
- --------------------------------------------------------------------------------


1998                                            United States       Japan         Belgium          Other        Consolidated
- ----------------------------------------------- --------------- -------------- --------------- --------------- -------------

<S>                                                <C>            <C>             <C>            <C>            <C>
Revenue, external                                  $224,220       $ 11,561)       $ 57,744         -            $ 293,525
Long-lived assets                                  $ 24,741       $    268        $  1,512      $   883         $  27,404
Total assets                                       $189,014       $  6,389)       $ 19,156      $ 2,424         $ 216,983
Net income                                         $ 33,588       $     48        $  2,972      $  -            $  36,608
- ----------------------------------------------- --------------- -------------- --------------- --------------- ---------------

1997                                            United States       Japan         Belgium          Other        Consolidated
- ----------------------------------------------- --------------- -------------- --------------- --------------- ---------------

Revenue, external                                  $205,975       $ 13,271)       $ 42,064          -            $261,310
Long-lived assets                                  $ 24,409       $    219        $    929      $   501          $ 26,058
Total assets                                       $160,302       $  4,977)       $ 15,285      $ 1,840          $182,404
Net income                                         $ 19,847       $  ( 828)       $  2,733      $   -            $ 21,752
- ----------------------------------------------- --------------- -------------- --------------- --------------- ---------------



1996                                            United States       Japan         Belgium          Other        Consolidated
- ----------------------------------------------- --------------- -------------- --------------- --------------- ---------------

Revenue, external                                  $171,517       $ 12,282)       $ 29,805           -           $213,604
Long-lived assets                                  $ 23,281       $    265        $    965        $   331        $ 24,842
Total assets                                       $129,516       $  5,078)       $ 11,286        $ 1,390        $147,270
Net income                                         $ 24,495       $    232        $    821        $   -          $ 25,548
- ----------------------------------------------- --------------- -------------- --------------- --------------- ---------------
</TABLE>

          Revenue   reported  from  the  United  States  includes  export  sales
primarily to Canada, Latin America,  Korea, China,  Southeast Asia, Middle East,

<PAGE>

Australia,  and New Zealand.  Revenue  attributed to Belgium primarily  includes
sales from the  Company's  Belgian  subsidiary  to  customers  in all of Western
Europe.  Revenues  attributed to Japan include sales from the Company's Japanese
subsidiary to customers in Japan.  The  above-mentioned  revenues for the United
States  included  export sales to customers  aggregating  $49.3  million,  $33.5
million and $20.2  million for fiscal years ended  December  31, 1998,  1997 and
1996, respectively.

<PAGE>

10.  Subsequent Events
- --------------------------------------------------------------------------------

Legal:

On February 9, 1999,  the  Company  entered  into a  settlement  agreement  that
resulted in the dismissal of various legal proceedings involving,  among others,
the Company and Brooktrout Technology, Inc. ("Brooktrout").  The parties reached
a settlement  in their  litigation in which all parties  dismissed  their claims
with  prejudice,  and  Dialogic  received  a "pass  through"  license to certain
Brooktrout  patents.  Neither  Dialogic  nor its  Chairman  made any payments to
Brooktrout in this matter.  Separately,  the Company's  Spectron  subsidiary had
sued  Brooktrout  for  patent  infringement.  This case was  transferred  to the
District  of  Massachusetts.  Dialogic  believes it has  retained  the rights to
maintain  this lawsuit  despite the February  1998 sale of the Spectron  assets.
Brooktrout has moved to dismiss this case,  claiming that Dialogic no longer has
standing to enforce the patents.  Trial in this case is now  scheduled  for June
14, 1999.

Authorized Shares:

On February 22, 1999, the Board of Directors voted to seek shareholder  approval
to increase  the number of  authorized  shares to 500  thousand for the Employee
Stock Purchase Plan.

Strategic Partnership:

On March 2, 1999,  Dialogic and Microsoft  Corporation  announced that they have
entered into a strategic  alliance  relating to Dialogic's CT server  initiative
and Dialogic's CT Media for Windows NT middleware product.  Under the terms of a
license and development agreement, Microsoft will become a nonexclusive licensee
of Dialogic's CT Media for Windows NT  middleware  product.  Dialogic will enter
into  development  activities to create  specific  applications in the telephony
space  which will be owned by  Microsoft  and will  provide  other  support  and
development  services.  Under the license and development  agreement,  Microsoft
payments to Dialogic over the next four years are expected to be $20 million for
the initial licenses for CT Media for Windows NT, the development services,  and
certain  support.  Microsoft's  license  to  CT  Media  is  subject  to  certain
contractual  limitations,  and Dialogic will continue to own and remains free to
license CT Media.

          In a separate  transaction,  also occurring  March 2, 1999,  Microsoft
agreed,  for an aggregate  purchase price of $24.2 million,  to acquire  860,681
newly issued shares of Dialogic common stock and a warrant  entitling  Microsoft
to purchase  279,869 shares of Dialogic common stock.  The warrant has a term of
four years and is  exercisable  at a price of $35.19 per share.  Both the issued
shares and the shares  resulting from the exercise of the warrant are subject to
a lockup period beginning on the transaction  date. During the first year of the
lockup period,  Microsoft may sell none of the shares,  and may only sell 50% of
the shares in the second year of the lockup period.  Thereafter,  all shares may
be freely  sold.  On March 2, 1999,  Dialogic  issued the shares and  warrant to
Microsoft.


<PAGE>

Supplementary Financial Information
- --------------------------------------------------------------------------------


<TABLE>
<CAPTION>

Selected Quarterly Financial Information (Unaudited)

- ------------------------------------------------------------------------ ------------- --------------------------- -------------
Amounts in thousands, except per share data                                                          1998
                                                         Quarter ended:   March 31, (      June 30,      Sept 30,       Dec 31,
- ------------------------------------------------------------------------ ------------- ------------- ------------- -------------
<S>                                                                        <C>              <C>           <C>           <C>    
Total revenues                                                             $66,388(1)       $73,131       $76,121       $77,885
Gross profit                                                                41,731(1)        46,358        47,165        49,704
Net income                                                                  15,573(1)         7,034         6,956         7,045
Income per share:
  Basic                                                                     $  .97(1)        $  .44        $  .43        $  .44
  Diluted                                                                   $  .93(1)        $  .42        $  .43        $  .43
- ------------------------------------------------------------------------ ------------- ------------- ------------- -------------
                                                                                                     1997
                                                         Quarter ended:   March 31, (      June 30,      Sept 30,       Dec 31,
- ------------------------------------------------------------------------ ------------- ------------- ------------- -------------
Total revenues                                                             $57,089(1)       $63,196       $68,760       $72,265
Gross profit                                                                35,320(1)        39,826        42,878        44,957
Net income                                                                   3,227(1)         4,778         6,352         7,395
Income per share:
  Basic                                                                     $  .20(1)        $  .30        $  .40        $  .46
  Diluted                                                                   $  .20(1)        $  .29        $  .38        $  .44
- ------------------------------------------------------------------------ ------------- ------------- ------------- -------------
</TABLE>

(1) Includes  after-tax gain on sale of Spectron  assets of $14.0 million ($0.84
per diluted share) and an after-tax impairment charge of $4.8 million ($0.29 per
diluted share).

<TABLE>
- --------------------------------------------------------------------------------
Market Price and Dividend Data
- --------------------------------------------------------------------------------

                                                                                                             High           Low

<S>                                                                                          <C> <C>        <C>           <C>  
Quarter ended March 31, 1997                                                                                36.75         19.38
Quarter ended June 30, 1997                                                                                 29.25         16.06
Quarter ended September 30, 1997                                                                            43.00         26.87
Quarter ended December 31, 1997                                                                             49.87         36.25
Quarter ended March 31, 1998                                                                                47.00         31.75
Quarter ended June 30, 1998                                                                                 44.38         26.25
Quarter ended September 30, 1998                                                                            37.69         26.25
Quarter ended December 31, 1998                                                                             26.75         17.88
- -------------------------------------------------------------------------------------------------- --------------- -------------

</TABLE>

As of January 31, 1999,  there were  approximately  203 holders of record of the
Company's  Common  Stock.  Since  its  IPO,  the  Company  has not paid any cash
dividends  on its  capital  stock.  The  Company's  current  policy is to retain
earnings  for  its  use in the  business.  Accordingly,  the  Company  does  not
anticipate paying cash dividends in the future. Any payment of cash dividends in
the future will  depend  upon the  financial  condition,  capital  requirements,
potential  growth and  earnings of the  Company as well as other  factors as the
Board of Directors deems relevant.



                                  Exhibit 21.1

                              DIALOGIC CORPORATION
                    PRINCIPAL SUBSIDIARIES OF THE REGISTRANT


NAME OF SUBSIDIARY                                JURISDICTION OF ORGANIZATION


Dialogic Investment Corporation                   New Jersey

Dialogic World Wide Services, Inc.                New Jersey

Dialogic (NZ) Limited                             New Zealand

Dialogic Telecom Europe S.A.                      Belgium

Dialogic Systems K. K.                            Japan

Dialogic FSC, Ltd.                                Barbados

Dialogic Israel, Ltd.                             Israel

Dialogic S.E.A., Ptd                              Singapore



                                                           Exhibit 23.1

INDEPENDENT AUDITORS' CONSENT


The Board of Directors and Shareholders
Dialogic Corporation
Parsippany, New Jersey 07054

We consent to the  incorporation  by reference in  Registration  Statements  No.
333-08183,  No. 333-11373, and No. 333-26993 of Dialogic Corporation of Form S-8
and Registration Statement No. 333-11369 and Amendment No. 1 to Registration No.
333-11369 of Dialogic  Corporation  on Form S-3 of our report dated  January 27,
1999 (except for Note 10, as to which this date is March 2, 1999),  incorporated
by reference in this Annual Report on Form 10-K of Dialogic  Corporation for the
year ended December 31, 1998.


/s/ Deloitte & Touche LLP

Parsippany, New Jersey
March 24, 1999




                                POWER OF ATTORNEY


          WHEREAS,   the   undersigned   officers  and   directors  of  Dialogic
Corporation  desire to authorize Howard G. Bubb, Thomas G. Amato and Theodore M.
Weitz to act as their attorneys-in-fact and agents, for the purpose of executing
and filing an Annual Report on Form 10-K, including all amendments thereto,

          NOW, THEREFORE,

          KNOW ALL MEN BY THESE  PRESENTS,  that  each  person  whose  signature
appears  below  constitutes  and  appoints  Howard G. Bubb,  Thomas G. Amato and
Theodore M. Weitz,  and each of them, his true and lawful  attorney-in-fact  and
agent, with full power of substitution and resubstitution,  to sign the Dialogic
Corporation  Annual  Report on Form 10-K for the year ended  December  31, 1997,
including any and all amendments and supplements  thereto, and to file the same,
with all exhibits thereto, and other documents in connection therewith, with the
Securities and Exchange  Commission,  granting unto said  attorneys-in-fact  and
agents,  and each of them,  full power and  authority to do and perform each and
every  act and  thing  requisite  and  necessary  to be done  in and  about  the
premises,  as fully and to all intents  and  purposes as he might or could do in
person,  hereby  ratifying and  confirming all that said  attorneys-in-fact  and
agents, or any of them, or their or his substitute or substitutes,  may lawfully
do or cause to be done by virtue hereof.

          IN  WITNESS  WHEREOF,  the  undersigned  have  executed  this power of
attorney in the following capacities on this __ day of February, 1999.

SIGNATURE                             TITLE



//s Howard G. Bubb
___________________                   President, Chief Executive Officer 
Howard G. Bubb                        and Director


                                      
/s/Kenneth J. Burkhardt, Jr.
_________________________             Director
Kenneth J. Burkhardt, Jr.


/s/Masao Konomi
______________________                Director
Masao Konomi

                                      Director
/s/John N. Lemasters
_____________________
John N. Lemasters

                                      Director
/s/Francis G. Rodgers
_____________________
Francis G. Rodgers

                                      Director
/s/James J. Shinn
_____________________
James J. Shinn


/s/Nicholas Zwick
_____________________                 Director
Nicholas Zwick


/s/Thomas G. Amato
______________________________        Treasurer,  Vice President and Chief 
Thomas G. Amato                       Financial  Officer (Chief Financial and 
                                      Accounting Officer)


<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
     This  financial data schedule  contains a summary of financial  information
     extracted from Dialogic Corporation's  Balance Sheet at December 31, 1998, 
     and twelve months income statement ending December 31, 1998, and is 
     qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK>                         0000899042
<NAME>                        DIALOGIC CORPORATION
<MULTIPLIER>                                   1,000
<CURRENCY>                                     U.S.
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                              DEC-31-1998
<PERIOD-END>                                   DEC-31-1998
<EXCHANGE-RATE>                                     1
<CASH>                                         39,774
<SECURITIES>                                   44,594
<RECEIVABLES>                                  56,965
<ALLOWANCES>                                    1,871
<INVENTORY>                                    21,847
<CURRENT-ASSETS>                              177,734
<PP&E>                                         58,887
<DEPRECIATION>                                (31,483)
<TOTAL-ASSETS>                                216,983
<CURRENT-LIABILITIES>                          38,175
<BONDS>                                             0
                               0
                                         0
<COMMON>                                          217
<OTHER-SE>                                    175,460
<TOTAL-LIABILITY-AND-EQUITY>                  216,983
<SALES>                                       293,525
<TOTAL-REVENUES>                              293,525
<CGS>                                         108,567
<TOTAL-COSTS>                                 108,567
<OTHER-EXPENSES>                              150,875
<LOSS-PROVISION>                                    0
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