ZOOM TELEPHONICS INC
10-K, 1998-03-31
TELEPHONE & TELEGRAPH APPARATUS
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                                  UNITED STATES
                       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, 1997
                                       or
[  ]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 0-18672

                             ZOOM TELEPHONICS, INC.
             (Exact Name of Registrant as Specified in its Charter)


                  Canada                                           04-2621506
               (State or Other Jurisdiction of                 (I.R.S. Employer
                Incorporation or Organization)              Identification No.)

               207 South Street, Boston, Massachusetts                 02111
               (Address of Principal Executive Offices in the U.S.)  (Zip Code)

               1200 Royal Center
               1055 West Georgia Street, Vancouver, B.C.              V6E 3P3
               (Address of Principal Executive Offices in Canada)    (Zip Code)

              Registrant's Telephone Number, Including Area Code: (617) 423-1072
              Securities Registered Pursuant to Section 12 (b) of the Act: None
                 Securities Registered Pursuant to Section 12 (g) of the Act:

                           Common Stock, No Par Value
                                (Title of Class)

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 a 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 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.
YES  [  ]    NO [X]

The aggregate  market value of the Common Stock, No Par Value, of the registrant
held by  non-affiliates  of the  registrant  as of March 30, 1998  (computed  by
reference to the closing price of such stock on The Nasdaq National  Market) was
$53,195,003.

The number of shares outstanding of the registrant's Common Stock, No Par Value,
as of March 30, 1998 was 7,472,000 shares.

                       DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Annual Proxy Statement for the registrant's  1998 annual meeting
of  stockholders  to be filed  with the SEC in April  1998 are  incorporated  by
reference into Part III, Items 10-12 of this Form 10-K.

<PAGE>

                                           PART I

This Report contains  statements that are  "forward-looking  statements" as that
term is defined under the Private Securities  Litigation Reform Act of 1995 (the
"Act") and releases issued by the Securities and Exchange Commission.  The words
"believe," "expect," "anticipate,"  "estimate," "may," "will," "plan," "intend,"
"could,"  "estimate,"  "is  being,"  "goal"  and  other  expressions  which  are
predictions  of or indicate  future events and trends and which do not relate to
historical   matters  identify   forward-looking   statements.   Forward-looking
statements  involve known and unknown  risks,  uncertainties  and other factors,
which may cause the actual  results,  performance or achievements of the Company
to  differ   materially  from   anticipated   future  results,   performance  or
achievements expressed or implied by such forward-looking statements.

Examples of these  risks,  uncertainties,  and other  factors  include,  without
limitation,  the overall state of the PC and PC communications markets,  pricing
and other competitive conditions, the timing of orders, market acceptance of the
Company's or its OEM customers'  products,  the timing of the  announcement  and
introduction of new products by the Company and its  competitors,  variations in
the Company's  product mix and component costs,  variations in the proportion of
sales  made to  retailers,  distributors  and OEMs,  the  financial  health  and
inventory levels of the Company's customers, seasonal promotions by the Company,
its customers and  competitors,  the timing of  expenditures  in anticipation of
future sales,  the timing of product  development  costs,  the  availability  of
materials  and labor  necessary  to produce the  Company's  products and general
economic conditions.  In addition to the foregoing,  the Company's actual future
results  could differ  materially  from those  projected in the  forward-looking
statements  as a result of the risk factors set forth in the  Company's  various
filings with the  Securities  and Exchange  Commission and of changes in general
economic  conditions,  changes in interest rates and changes in the  assumptions
used in making  such  forward-looking  statements.  The  Company  undertakes  no
obligation to publicly update or revise any forward-looking  statement,  whether
as a result of new information, future events or otherwise.

ITEM 1 - BUSINESS

Overview

Zoom  Telephonics,  Inc.  ("Zoom"  or  the  "Company")  is  a  Canadian  holding
corporation  whose  operations are solely carried out by its wholly owned United
States  subsidiary,  Zoom  Telephonics,  Inc., a Delaware  corporation  with its
principal executive offices located at 207 South Street,  Boston,  Massachusetts
02111.  The  discussion  of the  business of Zoom in this  report  refers to the
business  conducted  through the operations of the United States  subsidiary and
its other subsidiaries.

The Company is a leading designer,  producer and marketer of faxmodems and other
personal  computer  communications  products  for the  home  and  office.  These
products  link  Personal  Computers  ("PCs")  through  the  worldwide  telephone
network,  enabling them to transmit data, fax, voice and video,  and to remotely
access on-line services,  the Internet,  corporate computer networks,  and other
computers.  The Company offers a broad line of faxmodems with top data speeds of
56,000 bps,  available in internal,  external and PCMCIA  models.  Most of these
faxmodems  connect  to  a  single  telephone  line,  but  Zoom  also  makes  the
Zoom/MultiLine  for up to eight telephone lines. In addition,  Zoom has a number
of products sold as Zoom Business  Products,  which  typically  provide the link
between  users of a corporate  LAN (local area  network) and remote users or the
Internet.

The  Company  also  has a line of ISDN  (Integrated  Services  Digital  Network)
products,  which can transmit and receive  simultaneously  up to 128,000 bps. To
date all of these products have been internal cards for Windows PCs, but in 1998
Zoom  expects to ship  external  units,  both for single  users and for multiple
users on a LAN.

Late in 1997 the Company  began  shipments  of a  live-motion  full-color  video
camera that plugs into either a specialized video capture card included with the
camera, or into faxmodems either bundled with the camera or sold separately. The
Company is in the process of  expanding  its line of  video-related  products to
include other cameras and related  devices,  including  video capture cards that
work with composite video sources including VCRs and Camcorders.

Zoom's  objective  is to build  upon  its  position  as a  leading  supplier  of
faxmodems  and to  capitalize  on a number of  current  and  emerging  trends in
computer  connectivity,  including Internet access, video telephony,  and higher
data rates.  The Company  believes that the Zoom name is widely  recognized  and
associated with high performance per dollar, breadth of product line and product
innovation. 

Industry Background

Demand for PC communications products and services has grown significantly.  The
Company  believes  that this  growth  has been  driven by a variety  of  factors
including  (i) the  popularity  of the  Internet  and on-line  services  such as
America Online, the Microsoft Network,  and Prodigy,  (ii) the growing installed
base of PCs,  particularly in the home and mobile settings,  (iii) a significant
increase in the use of PCs for remote  access to  corporate  networks,  and (iv)
advances in  technology,  which have improved the  functionality  of the PC as a
means of transferring,  capturing and manipulating  data-intensive  information,
including  graphic  images and voice.  These trends have resulted in substantial
growth of modem unit sales, both for new PCs as bundled  peripherals and for the
installed base of PCs, as upgrades and first-time  purchases.  Substantially all
modems sold for PCs are now faxmodems  (modems that have the ability to send and
receive faxes),  and many faxmodems have enhanced voice  capabilities  and other
enhanced extra features.

The rapid expansion of on-line  services and the Internet has greatly  increased
the utility of personal computers by making a multitude of information resources
available  to PC users.  Modems  are  commonly  used to  remotely  access  these
resources.  As the transfer of large text files and data-intensive  images (like
those on the World  Wide Web)  become  more  pervasive,  high data  transmission
speeds and other  advanced  modem  features are expected to become  increasingly
important to PC users.

Worldwide PC shipments continue to grow, and industry sources estimate that over
200 million PCs are installed worldwide.  The Company believes that less than 7%
of the  worldwide  installed  base of PCs have a modem  capable  of data  speeds
higher  than  33,600  bps;  and  that  56K  modems  are  in  about  20%  of  the
approximately 34 million consumer PCs with modems in North America. As a result,
the Company  believes that a  substantial  market exists for PC users to upgrade
their existing modems to 56K and higher speeds, and that modems will continue to
achieve  increasing  penetration  of  the  PC  installed  base  as  applications
requiring  data  connectivity  proliferate.  The  recently set V.90 56K standard
should accelerate adoption of 56K faxmodems.

The growing use of PCs outside the traditional office setting has also increased
the demand for modems which enable users to remotely access corporate  networks,
the Internet and other PCs. In addition,  notebook  computers have become one of
the fastest growing segments of the PC market.

Advances in modem technology and lower modem prices have created rapid growth in
the installed base of modems. As a result, the high-volume segment of the market
has shifted from modems with a maximum  speed of 2400 bps in 1987, to 33,600 bps
in 1996 and 1997, to 56,000 bps today. Modems with high data speeds require less
time to transmit text files and graphics,  thereby reducing phone call costs and
facilitating the use of data-intensive applications like World Wide Web browsing
and remote access to corporate networks.  Other technological  advances that are
increasing  the use of modems in personal  computing  include new  voice-related
capabilities,  video telephony,  and electronic mail. For example,  voice modems
can provide answering machine,  voice mail and other voice-related  functions by
digitizing  incoming  voice  signals for storage in a computer and by retrieving
stored voice and sending it through the telephone  network to a remote person or
computer. As another example,  video telephony enables the transmission of still
or moving color images, either exclusively through the dial-up telephone network
or through the  Internet.  Advances in computer  software  are also  stimulating
demand for modems with faster  speeds and greater  functionality.  For  example,
Microsoft's  Windows 95  includes  remote  access,  faxing and  Internet  access
capabilities  that can only be used with a modem.  The demand for faster  speeds
and increased modem  functionality is expected to drive sales of new generations
of modems in the  future,  including  DSL  (Digital  Subscriber  Line) and cable
modems, both as upgrades and as peripherals bundled with new PCs.

Zoom Strategy

Zoom focuses on PC communications  products tailored to high-volume  channels of
distribution.  The Company  believes that the Zoom name is associated  with high
performance per dollar, breadth of product line, broad distribution, and product
innovation.  The Company's  objective is to build upon its position as a leading
supplier of  faxmodems  and to  capitalize  on a number of current and  emerging
trends in computer  connectivity,  including  Internet access,  remote access to
corporate  networks,  video  telephony,  and higher data speeds.  The  Company's
strategy includes the following key elements:



Build Upon and Exploit Brand Equity. Zoom has a widely recognized brand name and
established channels of high-volume retailer,  distributor and OEM customers who
buy the Company's  products.  The Company believes that its success has been due
in part to (i)  offering  its  customers a broad range of products  that provide
high performance per dollar, (ii) supporting the installed base of its faxmodems
with multiple  technical  support options,  (iii) promoting its products through
cooperative  advertising  with  its  retailer  customers,   and  (iv)  designing
attractive  and  informative  packaging  for its products.  Personal  Technology
Research  reports  that in January  1998 Zoom brand  modems had the second  most
retail shelf space for modems in North America.  The Company intends to continue
to enhance its brand equity by further expanding its marketing channels base and
by broadening its product offerings  through its established sales channels.  In
1997 Zoom  expanded  its sales  through  Internet  Service  Providers,  and Zoom
intends to continue partnering with these providers.

Introduce  Innovative  PC  Communications  Products.  Zoom seeks to identify new
high-volume opportunities for PC communications, to develop competitively priced
leading-edge  products  to address  these  opportunities,  and to build upon and
exploit its brand equity by delivering  these products  quickly and  effectively
through  its  established  sales  channels.  The  Company  was one of the  first
high-volume producers of faxmodems,  voice faxmodems, and  video-capture-enabled
faxmodems.  The  Company  also  produces  ISDN  products,   multi-line  business
communications  products, and video products, and expects to broaden its product
offerings in these areas.

Outsource Chipset Technology. Zoom pursues a strategy of outsourcing rather than
internally  developing  its faxmodem  chipsets,  which are  application-specific
integrated  circuits  that  form  the  technology  base  for its  faxmodems.  By
outsourcing  the  chipset  technology,  the Company is able to  concentrate  its
research and  development  resources  on faxmodem  system  design,  leverage the
extensive research and development  capabilities of its chipset  suppliers,  and
reduce its  development  time and  associated  costs and risks.  The Company has
established a strong relationship with Rockwell and is currently  purchasing all
of  its  modem  chipsets  from   Rockwell.   Rockwell  is  believed  to  be  the
highest-volume  modem chipset  manufacturer;  and has significant  resources for
semiconductor design and fabrication,  analog and digital signal processing, and
communications  firmware  development.  In  addition,  Rockwell  has  integrated
circuits and development efforts for faxmodems, fax machines, DSL, cable modems,
multimedia,  and video. Rockwell has significant competitors,  including Lucent,
and Zoom  intends to  continue  to  evaluate  and  consider  using  competitors'
offerings.

Maintain Low Costs.  Zoom continually  seeks ways to improve its product designs
and manufacturing  approach in order to reduce its costs. The Company outsources
aspects of its  manufacturing to contract  assemblers as a means of reducing its
labor  costs  and  capital  expenditures,  and of  providing  the  Company  with
flexibility in its capacity planning.

Expand  International  Sales.  Zoom  introduced its first  faxmodems in selected
Western  European  countries  in 1993.  During  1995 the Company  also  received
approvals and began shipping its first  faxmodems for the Japanese  market.  The
Company's international sales (excluding sales to OEMs) increased from 8% of net
sales in 1994 to 19% of net sales in 1997.  The  Company  plans to  continue  to
expand its international  product line and distribution  network, and is seeking
regulatory  approvals for the sale of its products in  additional  international
markets.

Expand OEM Sales. Zoom has been increasing its original  equipment  manufacturer
("OEM")  sales and  support  efforts,  and intends to continue to target the OEM
market as a significant opportunity for growth and diversification.

Explore  Acquisitions.  Zoom  acquired the products and certain  other assets of
Tribe  Computer  Works  ("Tribe")  in mid-1996,  and Zoom  continues to consider
acquisitions  of  businesses,  products  or  technologies  complementary  to the
Company's  business.  The Company  believes that  appropriate  acquisitions  can
reduce the development risk associated with new product offerings,  and that the
Company can leverage its brand equity and existing sales channels to enhance the
value  of  these  acquisitions.  There  can be no  assurance  that  any of these
explorations will lead to an acquisition or that any acquisitions, if made, will
be successful.

Products

Zoom's products link personal computers through the worldwide telephone network,
enabling them to remotely  access  on-line  services,  the  Internet,  corporate
computer  networks,  and other  computers.  The  Company  offers a broad line of
faxmodems with top data transmission speeds of 56,000 bps. The V.90 standard for
56K was  recently  adopted,  and in  late  February  1998  Zoom  began  shipping
Dualmodetm 56K modems able to automatically  connect to either a V.90 or K56flex
central site. The Company also ships ISDN products, and soon will begin shipping
its first  external ISDN  products.  Starting with its  acquisition  of Tribe in
1996,  the Company began  shipping  business  products that provide remote users
access to the  resources of a LAN, and connect  users of the LAN to the Internet
and to remote LANs and computers.  The Company also makes other related business
products,  including  a series  of  multi-line  modems  and a hub for  AppleTalk
networks.  In addition,  since late 1997 the Company has introduced a full-color
live-motion video camera and related products.

Zoom has a broad line of faxmodems with top data speeds of 56,000 bps, available
in internal, external and PCMCIA models. The internal faxmodems are designed for
installation in IBM PC-compatibles.  The external faxmodems are designed to work
with any terminal or computer,  including IBM PC-compatibles,  the Macintosh and
other  computers.  The Company's  external  models  include  desktop and smaller
"pocket" faxmodems.  The PCMCIA faxmodems are designed for use with notebook and
sub-notebook  computers as well as PDAs (personal digital  assistants)  equipped
with standard PCMCIA slots. When sold as packaged retail products, the Company's
faxmodems  are shipped  complete  with  third-party  software  that supports the
hardware capabilities of the faxmodem.

56K faxmodems allow users  connected to standard  phonelines to download data at
speeds  up to  56,000  bps when  communicating  with  compatible  central  sites
connected to digital  lines such as ISDN or T1 lines.  Those  central  sites are
typically online  services,  Internet  Service  Providers,  or remote LAN access
equipment.  Pre-standard  K56flextm and x2tm 56K modems have been shipping since
the second quarter of 1997. Zoom's first 56K modems incorporated K56flex,  which
was backed by  semiconductor  manufacturers  Rockwell  and Lucent,  central site
equipment  manufacturers Ascend, Cisco,  Microcom,  Shiva, and others; and modem
companies Boca, Diamond,  Motorola,  and others;  Compaq and many other computer
manufacturers,  and hundreds of Internet Service  Providers and online services.
x2 was backed by client modems and central site equipment by U.S.  Robotics (now
merged with 3Com);  semiconductor  manufacturers  Texas  Instruments  and Cirrus
Logic,  as well as Newcom  and other  modem  manufacturers.  x2  benefited  from
earlier introduction and faster initial rollout; but K56flex is now installed on
more  central  site ports and  supported  by more  Internet  Service  Providers.
Central site deployment is critical,  because this helps create customer utility
and demand.

In  February  1998 a committee  of the  International  Telecommunications  Union
("ITU") agreed upon the V.90 standard for 56K. This standard is neither  K56flex
nor x2, but instead incorporates technical features of each. Like preceding data
communications standards, V.90 is expected to accelerate the adoption of 56K. In
addition,  V.90 will enable Zoom's V.90 modems to connect to interoperable  V.90
central sites, even ones using 3Com central site equipment. Similarly, V.90 will
enable 3Com's V.90 modems to connect to  interoperable  V.90 central sites using
equipment  made by  Ascend,  Cisco,  Microcom,  Shiva,  and other  central  site
manufacturers who initially backed K56flex.  It will take a number of months for
V.90 to be widely  deployed.  In the meantime Zoom has begun  shipping  Dualmode
modems  designed to connect to either K56flex or V.90 central sites.  Zoom has a
broad line of K56flex modems for North America and for many other countries, and
Zoom plans to transition these products to V.90/K56flex Dualmode products during
the first half of 1998.

Faxmodem Product Features.     The following sets forth some of the key features
incorporated in one or more of the Company's faxmodems:

    ZoomGuardtm.    ZoomGuard  is  a  trademark  of  Zoom,  and  represents  the
    protective  circuitry  added to Zoom's  modems to improve  their  ability to
    withstand  the effects of lightning  striking a phoneline to which the modem
    is connected.

    Voice  Mail.   Voice mail  capability  allows a PC to serve as an  answering
    machine with message storage and local or remote message retrieval. Advanced
    options include multiple mailboxes and pager notification.

    Full-duplex Speakerphone.  This simultaneous two-way speakerphone capability
    allows one or more people to talk "hands free" rather than using a telephone
    handset or headset.  A speakerphone is commonly used for conference calls or
    for situations  where someone needs hands free for other  purposes,  such as
    controlling  a  computer's  mouse,   keyboard,  or  joystick.   Many  office
    speakerphones  are  half-duplex,  permitting  sound  to  travel  in only one
    direction at a time, similar to a walkie-talkie.  Full-duplex  speakerphones
    provide more natural two-way communication.

    Simultaneous Voice and Data  ("SVD").    SVD  capability  allows PC users to
    converse  over  the  phone  line  at  the  same  time  that  data  is  being
    transferred,  independent  of the  application  software  being  used.  This
    capability  is useful for  applications  where two people are working on the
    same  project,  as  well  as for  video  telephony,  technical  support  and
    interactive computer games.

    Caller ID.   Caller ID is a service  offered  by  telephone  companies  that
    provides the incoming caller's phone number,  and in some cases the caller's
    name,  through the incoming ring signal.  A faxmodem's  Caller ID capability
    allows a PC to recognize,  display and store this information.  For example,
    Caller  ID  information  can be  tied  to a  database  to  display  detailed
    information about the caller.

    Distinctive  Ring.   Distinctive  Ring is a  service  offered  by  telephone
    companies  that assigns  more than one phone  number to a single  phoneline,
    with each number ringing  differently.  This service along with  appropriate
    modem  functionality  allows  someone to arrange for one phone  number to be
    answered as a voice line, a second number to be answered as a fax line,  and
    a third  number to be  answered  as a data line.  Zoom has been  issued a US
    patent related to its distinctive ring technology.

    Plug & Play.   Microsoft's  Windows 95 supports Plug & Play, a standard that
    is intended to allow the installation of Plug & Play-compatible  peripherals
    like faxmodems with limited hardware configuration by the end-user.

    Cellular-ready PCMCIA Faxmodems.   Some of the Company's faxmodems include a
    cellular-ready  feature  that  allows  the  faxmodem  to be  plugged  into a
    cellular phone for wireless communication of fax and data.

International  Faxmodems.                  Most foreign countries have their own
telecommunications  standards and regulatory approval  requirements for sales of
communications  products  such as  those  offered  by  Zoom.  As a  result,  the
introduction  of new  products  into  international  markets  can be costly  and
time-consuming.  In 1993 the Company  introduced its first faxmodem approved for
selected Western European countries, and since then the Company has continued to
expand  its  product  offerings   internationally.   The  Company  has  received
regulatory  approvals  for, and is currently  selling  faxmodems in, a number of
countries,  including Australia,  Austria,  Belgium,  Denmark,  Finland, France,
Germany, Hungary, India, Ireland, Italy, Japan, the Netherlands, Norway, Poland,
Portugal,  Russia, Slovenia, South Africa, Sweden,  Switzerland,  and the United
Kingdom.  The Company intends to continue to expand and enhance its product line
for its existing  markets and to seek  approvals for the sale of its products in
new countries throughout the world.

ISDN Products.   Zoom is developing a family of modems for ISDN  communications.
ISDN is an increasingly  available  telephone service that allows existing phone
lines to be used to transmit data  digitally.  ISDN service  permits much higher
data transmission rates than conventional  analog telephone service.  Basic ISDN
service  typically  provides two 64,000 bps channels and one 16,000 bps channel.
The higher rates of data  transmission  achievable with ISDN can be particularly
attractive for data-intensive  applications such as the transmission of graphics
and video images, World Wide Web browsing, or video telephony.  In February 1997
Zoom  shipped  its  first  ISDN  product,   the   Zoom/ISDN   Duo,  an  internal
PC-compatible  card that supports use of the ISDN line for analog modem, fax, or
voice   communications;   and  also  supports   analog  modem,   fax,  or  voice
communications  over an analog phoneline.  Zoom is completing the development of
external ISDN products for the North  American and  international  markets,  and
Zoom continues to integrate ISDN  capability  into some of its new  LAN-oriented
business products.

Multi-line Faxmodems.   In 1996  Zoom  began  shipping  a family  of  multi-line
faxmodems  targeted  for local area  network fax and data  server  applications,
computer  bulletin boards,  multi-line voice mail, and other  applications.  The
Zoom/MultiLine  products hold up to eight voice  faxmodems in one small external
case that includes status indicators for each faxmodem.

Remote  Access,  SOHO  Router,  and  Internet  Gateway  Products.   Zoom  has  a
significant  R&D effort aimed at development  of business  products that provide
remote users access to the  resources of a LAN, and connect the users of the LAN
to the  Internet  and to  remote  LANs and  computers.  Some of  these  products
incorporate  technology acquired from Tribe Computer Works in 1996. In 1997 Zoom
extended the product line to include support for Windows,  to incorporate analog
modem and leased line options,  and to add new features.  Zoom plans to continue
to expand this product line.

Full-color  Live-motion  Cameras  and Other  Video  Products.  In late 1997 Zoom
shipped the Zoom/Video  Cam, a full-color  live-motion  camera.  This camera can
plug into an  included  ISA  capture  card or into the video  jack  built into a
number of ISA-bus  internal  modems  approved for sale in North America and in a
large number of other countries.  The Zoom/Video Cam can be used for video phone
calls, video conferences,  video mail, and still image capture. In 1998 Zoom has
continued to introduce  video  products,  including a bundle that includes a 56K
video-ready  faxmodem and the  Zoom/Video  Cam. Zoom plans to offer new cameras,
including  a parallel  port  connected  camera,  and to  introduce  other  video
products.  Video products fit Zoom's marketing channel.  Zoom expects the demand
for video products will grow due to a number of factors including improved video
technology,  higher data  communications  bandwidth,  faster PCs,  and  improved
video-related software.

There can be no assurance  that the Company will be able to develop new products
on a timely basis and within  budget,  if at all, or that once  developed any of
these products will be commercially successful.

Sales Channels

Zoom  sells  its  products   primarily   through   high-volume   retailers   and
distributors,  and to PC manufacturers  and other OEMs. The Company supports its
major accounts in their efforts to discern  strategic  directions in the market,
to maintain  appropriate  inventory levels and to offer a balanced  selection of
products.

During 1997, Best Buy Co., Inc. and CompUSA,  Inc. accounted for 17.2% and 10.9%
respectively,  of Zoom's net sales.  A  significant  reduction in sales to these
customers could have a material adverse effect on the Company's business.

High-volume  Retailers.  In the United States, Zoom reaches the PC retail market
primarily through high-volume  retailers.  The Company's extensive United States
retail  distribution  network includes AAFES, Best Buy, CompUSA,  Computer City,
Fry's, Future Shop, J&R, MEI Micro Center, Office Depot, OfficeMax, and Staples.
Personal  Technology  Research reported that in January 1998 the Company had the
second greatest amount of retail shelf space for modems in North America.

Distributors.  Zoom sells significant quantities of modems through distributors,
who often sell to corporate accounts,  value-added  resellers and other channels
that are  generally  not  served by the  Company's  high-volume  retailers.  The
Company's North American distributors include Ingram Micro,  MicroAge,  and Tech
Data.

OEMs.  The Company's OEM customers  sell the Company's  products under their own
name or incorporate the Company's  products as a component of their pre-packaged
systems,  typically a PC. The Company's  packaging design capability enables the
Company  to  respond to an OEM's need for  customized  or generic  products  and
packaging.  The  Company  is  responsive  to  the  needs  of  personal  computer
manufacturers including on-time delivery of high-quality cost-effective products
that are  supported by strong  documentation  of the products and the  products'
quality.

International  Channels.  In  international  markets,  Zoom  sells its  products
primarily  through  independent   distributors  and  retailers.   The  Company's
distributors  include Actebis,  California  Computer,  Criterium,  Ingram Micro,
Northamber, TURCom, UMD, Veracomp, and Yutron Tech. The Company's major European
high-volume  retailers include Argos,  Byte, Exell, PC World,  Tandy, and Vobis.
The Company's  international  net sales (including sales to OEMs located outside
the  United  States)  have  grown  from 8% in 1994 to 19% in 1997.  The  Company
believes  that its  continued  sales  growth  outside of the United  States will
require substantial  additional  investments of resources for product design and
testing,   regulatory   approvals,   production,   marketing  and  tailoring  of
instruction  manuals,  packaging and software  development  for various  foreign
languages. The Company's international sales are also subject to risks generally
associated with international  sales,  including United States and international
regulatory requirements and policy changes,  political and economic instability,
currency  exchange  fluctuations,   inventory  management,  accounts  receivable
collection,   the  management  of   distributors  or   representatives,   tariff
regulations and seasonality of sales.






Sales, Marketing and Support

In North America the Company sells its  Zoom-brand  products  primarily  through
commissioned  independent  sales  representatives  managed and  supported by the
Company's own staff.  For Western  Europe,  in 1996 the Company  performed  most
marketing, sales, credit, collections,  customer support and warehousing through
an independent  organization  compensated on a commission basis. Zoom terminated
this relationship in early 1997. The Company then established a Munich office to
provide sales administration and public relations services for Western Europe as
well as sales outreach for Italy,  Spain,  Greece, and Scandinavia.  The Company
has also established sales offices in Belgium to service Holland and Belgium, in
Germany,  and in the  United  Kingdom  to  service  the  UK and  Irish  markets.
Warehousing,  customs  clearance,  shipping,  and  invoicing  for Europe are now
primarily done under contract with Road Air, an unaffiliated specialist in these
services located in Holland.  Technical  support for Europe is handled by Zoom's
distributors and an independent company which specializes in technical support
in the UK. For  countries  outside  North  America  and  Europe,  the  Company's
in-house staff typically works directly with country-specific  distributors. The
Company's  worldwide  OEM sales are  primarily  handled  by Zoom's  Boston-based
staff,  who are at times assisted by commissioned  sales  representatives.  (See
note 15 to Consolidated Financial Statements.)

The Company  believes that Zoom is a widely  recognized  brand name. The Company
builds  upon its  brand  equity  in a  variety  of ways,  including  cooperative
advertising,  product packaging,  trade shows and public relations.  The Company
generally provides its high-volume  retailers with an allowance to advertise the
Company's products in conjunction with the customers' general  advertising.  The
Company  believes  that  such   advertising   serves  to  both  efficiently  and
effectively target the end-user market for its products.

Zoom  seeks to develop  quality  products  that are  user-friendly  and  require
minimal  support.  The Company supports its claims of quality with warranties of
one to seven years,  depending  upon the product.  To address the needs of those
end-users of the Company's products who require  assistance,  the Company has an
in-house staff of technical specialists who provide telephone support six days a
week.  These  specialists  also maintain a bulletin board and a home page on the
World Wide Web, forums on America Online and CompuServe, and a fax-back service.

Research and Development

The Company's  research and  development  efforts are focused on developing  new
products for PC  communications  markets,  further enhancing the capabilities of
existing products and reducing production costs. The Company has developed close
collaborative  relationships  with certain of its OEM  customers  and  component
suppliers,  who work with the  Company  to  identify  and  respond  to  emerging
technologies and market trends by developing products that address these trends.
In addition, the Company purchases modem chipsets from Rockwell that incorporate
sophisticated modem technology,  thereby eliminating the need for the Company to
develop this  technology  in- house.  As of February 25, 1998 the Company had 37
employees  engaged  primarily in research  and  development.  This  research and
development  team performs  electronics  hardware design and layout,  mechanical
design, prototype construction and testing,  component  specification,  firmware
development,  product testing, foreign and domestic regulatory approval efforts,
end-user and internal  documentation,  and  third-party  software  selection and
testing.  During 1997,  1996 and 1995 the Company  expended $4.2  million,  $2.9
million and $1.8 million, respectively, on research and development activities.

Manufacturing and Suppliers

The Company's products are currently designed for high-volume automated assembly
in North  America or China to help assure low cost,  rapid market  entry,  short
lead times and  reliability.  The Company supplies large kits of parts to one of
several  automated  contract   assemblers  in  Mexico  or  China.  The  contract
assemblers insert most parts automatically by machine, solder the circuit board,
and  in-circuit  test  the  completed  assemblies.  These  assemblies  are  then
typically shipped to the Company,  which completes the manufacturing process and
performs a computerized  functional test for further quality control.  Completed
boards are  typically  then  packaged by the  Company,  allowing  the Company to
tailor the  packaging  and its contents  for its  customers  immediately  before
shipping.  Circuit  design,  circuit  board  layout and  component  sourcing are
currently performed by the Company.

Zoom  typically  uses one primary  contract  assembler for a given design,  with
back-up  production  tooling at a second  assembler  for  Zoom's  highest-volume
products.  The Company's assemblers are normally adequate to meet reasonable and
properly planned  production  needs, but a fire,  natural  calamity,  strike, or
other  significant  event at an assembler's  facility could adversely affect the
Company's shipments and revenues.  The Company's products include a large number
of parts,  most of which are available  from multiple  sources with varying lead
times. However,  there are only a limited number of suppliers of modem chipsets,
the most critical  component of the Company's  faxmodems.  Currently Rockwell is
the  Company's  only modem  chipset  supplier.  Due to capacity  constraints  of
Rockwell,  the Company has experienced delays in receiving shipments of chipsets
in the past,  and the Company  may  experience  such  delays in the future.  The
Company believes its relationship with Rockwell is good.  However,  there can be
no assurance that Rockwell will, in the future,  sell chipsets to the Company in
quantities sufficient to meet the Company's needs. An interruption in Rockwell's
ability  to  deliver  chipsets,   a  failure  of  Rockwell  to  produce  chipset
enhancements  or new chipsets on a timely  basis and at  competitive  prices,  a
material  increase  in the price of  Rockwell's  chipsets  or any other  adverse
change in the Company's relationship with Rockwell would have a material adverse
effect on the Company's results of operations.

Competition

The  PC   communications   products   industry  is  intensely   competitive  and
characterized by rapid  technological  advances and emerging industry standards,
resulting  in  constant  pricing  pressures.  These  changes  result in frequent
introductions  of  new  products  with  added  capabilities  and  features,  and
continuous improvements in the relative functionality and price of faxmodems and
other PC communications  products.  The failure of the Company to keep pace with
technological advances would adversely affect the Company's competitive position
and results of operations.

The Company's primary  competitors  include Boca Research,  Diamond  Multimedia,
GVC, Global Village, Hayes Microcomputer  Products,  Motorola,  Newcom and 3Com.
Motorola  has  announced  plans  to sell  its  retail  modem  division,  but the
purchaser may continue to be a  competitor,  albeit  without the Motorola  name.
Many of the Company's  competitors and potential competitors have more extensive
financial,   engineering,  product  development,   manufacturing  and  marketing
resources than the Company. In addition,  the difficult modem environment during
the past 18  months  may bring on a period of  consolidation  that has  possible
benefits, but also has risks.

The Company's products compete on the basis of product features, price, quality,
reliability, brand name recognition,  product breadth and shelf space, developed
sales channels, product documentation,  product warranties and technical support
and service. The Company believes that it is competitive in each of these areas.
However,  there  can  be  no  assurance  that  competitors  will  not  introduce
comparable or superior products  incorporating more advanced technology at lower
prices,  or that  other  changes in market  conditions  or  technology  will not
adversely affect the Company's ability to compete successfully in the future.

Products  recently  introduced by certain other companies  include DSL and cable
modems that can transmit  data and other  information  at  significantly  faster
speeds than analog  modems such as those sold by the  Company.  These  products,
however, are generally more expensive than analog modems and cannot be used with
conventional  telephone service. In addition, the use of DSL and cable modems is
currently  impeded  by a lack of  widely  accepted  standards  and a  number  of
technical and  infrastructure  limitations.  It is likely that if these types of
modems reach the high market  volume  suited to Zoom's  business  and  marketing
channels,  that the Company will seek to introduce appropriate modems. There can
be no assurance that the Company will develop these modems on a timely basis, if
at all, or that once developed, these modems will compete effectively.

Intellectual Property Rights

Zoom relies primarily on a combination of copyrights,  trademarks, trade secrets
and patents to protect its  proprietary  rights.  The Company has trademarks and
copyrights for its firmware (software on a chip), printed circuit board artwork,
instructions,  packaging and literature.  The Company also has three patents and
one pending patent application in the United States.  The patents,  which expire
in 2011, 2013 and 2013,  respectively,  generally relate to faxmodem distinctive
ring,  use  of  a  faxmodem  as  a  scanner,  and  modified  ringback  answering
capabilities.  There can be no  assurance  that any patent  application  will be
granted or that any patent obtained will provide  protection or be of commercial
benefit to the Company, or that the validity of a patent will not be challenged.
Moreover,  there can be no assurance that the Company's  means of protecting its
proprietary  rights will be adequate or that the Company's  competitors will not
independently develop comparable or superior technologies.

Zoom  licenses  certain  technologies  used in its products,  typically  bundled
software,  on a  non-exclusive  basis.  In addition the Company  purchases modem
chipsets that incorporate sophisticated modem technology from Rockwell. Zoom has
received, and may receive in the future,  infringement claims from third parties
relating to the Company's  products and technologies.  The Company  investigates
the validity of these claims and, if it believes the claims have merit, responds
through  licensing or other  appropriate  actions.  Certain of these claims have
related to  technology  included in  Rockwell  and other  chipsets.  The Company
forwards these claims to the appropriate vendor. If the Company or its component
manufacturers  were unable to license  necessary  technology on a cost-effective
basis, the Company could be prohibited from marketing  products  containing that
technology,  incur substantial costs in redesigning products  incorporating that
technology,  or incur substantial costs defending any legal action taken against
it. See Item 3 - LEGAL PROCEEDINGS.

Government Regulation

All of the Company's North American  products are required to meet United States
and Canadian government regulations,  including regulations of the United States
Federal  Communication  Commission  ("FCC") and Industry Canada,  which regulate
equipment,  such as modems,  that connects to the public telephone network.  The
FCC  also  regulates  electromagnetic  radiation  emissions.  For  each  of  the
Company's products sold in most foreign countries, specific regulatory approvals
must be obtained for such matters as electrical safety, manufacturing standards,
country-specific  telecommunications  equipment requirements and electromagnetic
radiation and susceptibility  requirements.  The Company has received regulatory
approvals  for  certain  faxmodems  in  Australia,  Austria,  Belgium,  Denmark,
Finland,   France,   Germany,   Hungary,   India,  Ireland,  Italy,  Japan,  the
Netherlands,  Norway, Poland, Portugal,  Russia, Slovenia, South Africa, Sweden,
Switzerland and the United Kingdom.  The Company expects to continue to seek and
receive approvals for new products in a large number of countries throughout the
world.  The  regulatory  process  can be  time-consuming  and  can  require  the
expenditure  of  substantial  resources.  In many foreign  countries,  obtaining
required regulatory  approvals may take significantly  longer than in the United
States.  There can be no assurance that the FCC or foreign  regulatory  agencies
will grant the requisite approvals for any of the Company's products on a timely
basis,  if  at  all.  United  States  and  foreign  regulations   regarding  the
manufacture and sale of telecommunications devices are subject to future change.
The Company cannot  predict what impact,  if any, such changes may have upon its
business.

Backlog

The Company's  backlog at January 31, 1998 and January 31, 1997 was $6.5 million
and $5.1  million,  respectively,  most of which was for  delivery  of  products
within 120 days or less. Orders included in backlog generally may be canceled or
rescheduled  by  customers  without  significant  penalty.  Backlog  as  of  any
particular  date should not be relied upon as  indicative  of the  Company's net
sales for any future period.

Employees

As of February 25, 1998 Zoom had 342 full-time  employees  (including  employees
hired on a temporary  basis).  Of this total,  37 were  engaged in research  and
development, 195 were involved in purchasing,  assembly, packaging, shipping and
quality control, 73 were engaged in sales,  marketing and technical support, and
the remaining 37 performed  accounting,  administrative and executive functions.
The Company's  temporary  employees were comprised of 34 individuals at February
25, 1998. Most of these temporary employees were employed in manufacturing.  The
Company  considers its  relationship  with its employees to be good. None of the
Company's employees are represented by a labor union.











Executive Officers Of The Registrant

The names of the current  executive  officers of Zoom, and certain  biographical
information furnished by them, are set forth below:

          Name               Age                        Position with Zoom
 ----------------------- ------------ ---------------------------------------

 Frank B. Manning            49       Chief Executive  Officer,  President and 
                                      Chairman of the Board
 Peter R. Kramer             46       Executive Vice President and Director
 Robert A. Crist             54       Vice President of Finance and 
                                      Chief Financial Officer
 Terry J. Manning            46       Vice President of Sales and Marketing
 Dean N. Panagopoulos        40       Vice President of Information Systems
 Deena Randall               44       Vice President of Operations
 Dana Whitney                35       Vice President of Engineering




Frank B. Manning is a co-founder  of the Company and has been  President,  Chief
Executive  Officer and a Director of the Company since May 1977, and Chairman of
the Board  since  1986.  He  earned  his BS, MS and PhD  degrees  in  Electrical
Engineering  from the  Massachusetts  Institute  of  Technology,  where he was a
National Science Foundation  Fellow.  Since 1993 Mr. Manning has been a director
of MicroTouch Systems, a NASDAQ-listed leader in touchscreen technology.

Peter R.  Kramer is a  co-founder  of the Company  and has been  Executive  Vice
President  and a Director of the Company since May 1977. He earned his BA degree
in 1973 from SUNY Stony Brook and his MFA degree from C.W. Post College in 1975.

Robert A. Crist joined Zoom in July 1997 as Vice  President of Finance and Chief
Financial Officer.  From April 1992 until joining the company,  Mr. Crist served
in various  capacities  at Wang  Laboratories,  Inc.,  a computer  software  and
services company,  including Chief Financial Officer for the Software  Business.
Prior to 1992 Mr. Crist served in various  capacities at Unisys  Corporation and
its  predecessor  Burroughs  Corporation,  both  computer  hardware and services
companies,  including Assistant Corporate Controller,  Corporate Manufacturing &
Engineering   Controller,    Computer   Systems   and   Networking   Controller,
Semiconductor  Business  Controller and Corporate  Director of Business Planning
and Analysis.  Mr. Crist earned his BA degree from Pennsylvania State University
and his MBA from the University of Rochester in 1971.

Terry J.  Manning  joined  Zoom in 1984 and served as  corporate  communications
director from 1984 until 1989 when he became the director of the Company's sales
and  marketing  department.  Terry  Manning is Frank  Manning's  brother.  Terry
Manning earned his BA degree from Washington University in St. Louis in 1974 and
his MPPA degree from the University of Missouri at St.
Louis in 1977.

Dean N. Panagopoulos  joined Zoom in February of 1995 as Director of Information
Systems.  For three  years prior to joining  Zoom,  Mr.  Panagopoulos  served as
Director of Technical Services for Ziff Information Services, a major outsourcer
of  computing  services.  Prior to that,  Mr.  Panagopoulos  worked for  General
Electric's  Aircraft  Engines  Division,   where  he  was  responsible  for  the
development and implementation of advanced  manufacturing  systems for automated
facilities.  He earned his BS degree in  Information  Systems from  Northeastern
University.

Deena Randall joined Zoom in 1977 as its first employee.  Ms. Randall has served
in various  senior  positions  within the Company and has directed the Company's
operations  since 1989. Ms.  Randall earned her BA degree from Eastern  Nazarene
College in 1975.

Dana Whitney joined Zoom in 1994 as director of engineering.  From 1990 to 1994,
Mr.  Whitney  served  in  various   capacities   with  Motorola  Codex,  a  data
communications company, including as a senior design engineer from 1990 to 1991,
and as an engineering  manager from 1991 to 1994. As engineering  manager he was
responsible  for the  design and  development  of  digital  data  communications
products.  Mr. Whitney earned his BSEE from the University of  Massachusetts  at
Dartmouth in 1984 and his MBA degree from Bryant College in 1993.

ITEM 2 - PROPERTIES

Zoom  currently  occupies  approximately  57,000  square  feet  of two  adjacent
buildings with a total of approximately  72,000 square feet at 201 and 207 South
Street, Boston, Massachusetts.  These buildings were purchased by the Company in
April 1993 and currently  serve as the corporate  headquarters.  In August 1996,
the  Company   entered  into  a  five  year  lease  for  a  77,428  square  foot
manufacturing and warehousing facility at 655 Summer Street,  Boston, MA. At the
end of the initial lease term, the Company has an option to extend the lease for
an additional  five year term.  Under the lease  agreement,  the Company has the
right to cancel the lease at any time after 24 months of the initial lease term.

ITEM 3 - LEGAL PROCEEDINGS

On March 21,  1996,  James A. Storer and REFAC  International,  Ltd.,  a company
engaged in the business of acquiring and licensing patents, filed a complaint in
the United  States  District  Court,  District of  Massachusetts,  naming  Hayes
Microcomputer  Products, Inc. and the Company as defendants in a patent lawsuit.
The  complaint  alleges  that  the  V.42  bis  international  telecommunications
standard for data compression in computer modems is covered by a patent owned by
the  plaintiffs,  and the  defendants'  modems that  incorporate  this  standard
infringe  the  patent.  While the  complaint  seeks to  permanently  enjoin  the
defendants   from   infringing   the  patent  and  monetary   damages  for  past
infringement, REFAC has offered to negotiate a royalty for licensing the patent.
The  Company  believes  that  the  alleged   infringement   involves  technology
incorporated in chipsets provided to it from Rockwell International and that, if
so, the Company will be indemnified by Rockwell.  By an agreement dated July 12,
1996 Rockwell has agreed,  subject to certain  conditions,  to assume defense of
Zoom against the action.

ITEM 4 - SUBMISSION OF MATTERS TO A VOTE OF SECURITIES HOLDERS

No matter  was  submitted  to a vote of  securities  holders  during  the fourth
quarter of the fiscal year covered in this report.































                                           PART II

ITEM 5 - MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER
MATTERS

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

Fiscal Year Ending December 31, 1996
                                                       High              Low

          First                                   $  20.875          $ 13.750
          Quarter............................................................
          Second                                     27.000            13.375
          Quarter............................................................
          Third                                      16.125             7.500
          Quarter............................................................
          Fourth                                     13.125             8.250
          Quarter............................................................

Fiscal Year Ending December 31, 1997

          First                                    $ 10.625           $ 8.375
          Quarter............................................................
          Second                                      8.750             6.500
          Quarter............................................................
          Third                                       8.250             7.000
          Quarter............................................................
          Fourth                                      7.625             5.125
          Quarter............................................................

As of March 25,  1998,  there were  approximately  369  holders of record of the
Company's Common Stock.

Recent Sales of Unregistered Securities

N/A

Dividend Policy

The Company has never  declared or paid cash  dividends on its capital stock and
does not plan to pay any cash dividends in the foreseeable future. The Company's
current policy is to retain all of its earnings to finance  future  growth.  The
Company's bank credit facility restricts the payment of cash dividends.

Limitations Affecting Holders of Common Stock

An  investment  in Common  Stock  which  results  in a change of  control of the
Company may be subject to review and approval  under the  Investment  Canada Act
(Canada) (the "ICA"),  if the person acquiring control is not a Canadian person;
provided, however, that if the person acquiring control is a national of a World
Trade Organization member country (which includes the United States),  then such
investment  shall not be  subject  to review  under the ICA so long as the gross
assets  of the  Company  have an  aggregate  value  of less  than  $160  million
Canadian.  This process may have the effect of delaying or preventing the change
in control of the Company.  Under the Canada Business Corporations Act, not less
than  one-third  of the  members of the Board of  Directors  and any  committees
thereof must be resident  Canadians (and not less than one-half if the Company's
gross revenues in Canada exceeds 5%).

Certain Income Tax Considerations

The  following  summary is based on the tax laws of the United States and Canada
as in effect on the date of this  Report,  and is  subject  to changes in United
States and Canadian law,  including changes that could have retroactive  effect.
The summary is further  based on the  Convention  between  Canada and the United
States of America  with  respect to Taxes on Income and on  Capital,  as amended
(the "Convention"),  the published  administrative  practices of Revenue Canada,
Taxation and the Internal Revenue Service and judicial  decisions,  all of which
are subject to change.  The  discussion  summarizes  certain tax  considerations
relevant to individual and corporate holders of Common Stock who, for income tax
purposes, are resident in the United States and not in Canada, hold Common Stock
as  capital  assets,  and do not use or hold the  Common  Stock in  carrying  on
business through a permanent establishment or in connection with a fixed base in
Canada  (collectively,  "Unconnected US Shareholders").  The tax consequences of
holding the Common Stock by individuals or corporations  who are not Unconnected
US Shareholders may differ  substantially  from the tax  consequences  discussed
herein.  The  summary  does not take into  account  the tax laws of the  various
provinces  or  territories  of Canada or the tax laws of the  various  state and
local jurisdictions in the United States.

The summary is intended to be a general  description  of the Canadian and United
States  tax  considerations.  It does  not  take  into  account  the  individual
circumstances of any particular holder of Common Stock. Therefore,  Stockholders
should  consult their own tax advisors with respect to the tax  consequences  of
holding Common Stock.

Canadian Federal Income Tax Considerations

Any  dividends  on the Common  Stock paid or  credited,  or deemed to be paid or
credited to  Unconnected US  Shareholders  generally will be subject to Canadian
withholding  tax. Under the  Convention,  the rate of withholding  tax generally
applicable to Unconnected US Shareholders is 15%. In the case of a United States
corporate  shareholder  owning 10% or more of the voting  shares of the Company,
the applicable  withholding tax is 6% for dividends paid or credited in 1996 and
5% thereafter.

Capital gains  realized on the  disposition  of Common Stock by  Unconnected  US
Shareholders  will not be subject to tax under the Income Tax Act (Canada)  (the
"Tax Act")  unless such Common  Stock is taxable  Canadian  property  within the
meaning of the Tax Act.  Common  Stock will  generally  not be taxable  Canadian
property to a holder unless, at any time during the five year period immediately
preceding a  disposition,  the holder,  or persons  with whom the holder did not
deal at arm's  length,  or any  combination  thereof,  owned  25% or more of the
issued  shares of any class or series of the  Company.  If the  Common  Stock is
considered  taxable Canadian property to a holder, the Convention will generally
exempt  Unconnected US  Shareholders  from tax under the Tax Act in respect of a
disposition  of Common Stock  provided the value of the shares of the Company is
not derived  principally from real property  situated in Canada.  Neither Canada
nor any  province  thereof  currently  imposes  any estate  taxes or  succession
duties.

United States Federal Income Tax Considerations

Unconnected  US  Shareholders  generally will treat the gross amount of any cash
dividends paid by the Company,  without  reduction for the Canadian  withholding
tax, as dividend  income for United  States  federal  income tax purposes to the
extent of the  Company's  current or  accumulated  earnings and profits.  If the
dividend  distribution  is  paid  in  Canadian  dollars,  the  dividend  will be
includable  in income  when  received  in an amount  equal to the United  States
dollar value, on the date of  distribution,  of the amount so  distributed;  any
gain or loss on the  conversion  of the  distribution  into US  dollars  will be
ordinary in nature.  Subject to the  limitations set forth in Section 904 of the
Internal  Revenue Code of 1986, as amended (the "Code") (which limits the extent
to which a United States  taxpayer may credit  against its United States federal
income tax  liability any taxes paid by it to a foreign  country),  the Canadian
tax withheld or paid with respect to distributions on the Common Stock generally
may be credited  against the United  States  federal  income tax liability of an
Unconnected US Shareholder if such holder makes an appropriate  election for the
taxable  year in  which  such  taxes  are  paid  or  accrued;  alternatively,  a
shareholder  who does not elect to credit  any  foreign  taxes  paid  during the
taxable  year may deduct  such  taxes in such  taxable  year.  In  addition,  an
Unconnected US Shareholder that is a domestic  corporation that owns 10% or more
of the Common Stock and receives a dividend and elects to credit  foreign  taxes
is deemed to have  received  (and to have paid as a foreign tax eligible for the
foreign tax credit,  subject to the limitations of Section 904) a portion of the
foreign taxes paid by the Company.  Because the foreign tax credit provisions of
the Code are complex,  investors  should  consult  their own tax  advisors  when
claiming foreign tax credits.  Dividends paid on the Common Stock will generally
not be eligible for the dividends received deduction otherwise allowed to United
States corporate shareholders.

The sale of Common Stock  generally  will result in the  recognition  of gain or
loss to an  Unconnected  US  Shareholder  in an amount  equal to the  difference
between the amount realized and the holder's adjusted basis in the Common Stock.
Gain or loss upon the sale of  Common  Stock  will be  short-term  or  long-term
capital  gain or loss,  depending  on whether the shares have been held for more
than one year.






ITEM 6 - SELECTED FINANCIAL DATA

The following table contains certain selected consolidated financial data of the
Company  and is  qualified  in its  entirety by the more  detailed  Consolidated
Financial  Statements and Notes thereto included  elsewhere in this report.  The
statement of operations  data for the years ending  December 31, 1995,  1996 and
1997 and the  balance  sheet  data as of  December  31,  1996 and 1997 have been
derived from the Consolidated  Financial  Statements of the Company,  which have
been audited by KPMG Peat Marwick LLP, independent certified public accountants,
and are included  elsewhere in this report.  The statement of operations data of
the  Company  for the years  ending  December  31, 1993 and 1994 and the balance
sheet  data as of  December  31,  1993,  1994 and 1995  have been  derived  from
consolidated  financial  statements  of the Company,  which have been audited by
KPMG Peat Marwick LLP and are not  included in this report.  This data should be
read in conjunction with the Consolidated Financial Statements and related Notes
thereto and  "Management's  Discussion  and Analysis of Financial  Condition and
Results of Operations" appearing elsewhere herein.
<TABLE>
<CAPTION>


                                                          Years Ending December 31,

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

                                           1993      1994       1995      1996      1997   
                                           ----      ----       ----      ----      ----
                                              (In thousands, except per share data)
<S>                                    <C>        <C>       <C>       <C>        <C>
Statement of Operations Data:
Net sales..........................    $  55,230  $ 68,180  $  96,997 $ 100,195  $ 64,478
Cost of goods sold.................       42,324    53,875     73,402    79,803    56,298
                                          ------    ------     -------   ------    ------
    Gross profit...................        2,906    14,305     23,595    20,392     8,180
Operating expenses:
       Selling.....................        4,562     6,573      9,023    10,216    11,103
       General and administrative..        1,204     1,776      2,840     3,674     4,957
       Research and development....        1,101     1,250      1,835     2,940     4,182
                                           -----     -----      ------    -----     -----
       Total operating expenses....        6,867     9,599     13,698    16,830    20,242
                                           -----     -----     ------    ------    ------
    Income (loss) from operations..        6,039     4,706      9,897     3,562   (12,062)
Interest income (expense) net .....           90       (75)       (33)      293       741
                                            ----     -----      ------    -----    ------
                                                                            
    Income (loss) before income taxes      6,129     4,631      9,864     3,855   (11,321)
Income tax expense (benefit).......        2,342     1,817      3,800     1,375    (4,189)
                                           -----     -----      -----     -----    -------
    Net income (loss)..............        3,787     2,814      6,064     2,480    (7,132)
                                           =====     =====      ======    =====    =======

Income (loss) per common and common equivalent share:
    Basic..........................     $   0.63   $  0.47   $   1.00  $   0.35   $ (0.95)
                                            ====      ====       ====      ====     ======
                                           
    Diluted........................     $   0.63   $  0.47   $   0.98  $   0.35   $ (0.95)
                                            ====      ====       ====      ====     ======

Weighted average common and common equivalent shares:
    Basic..........................        6,010     6,010      6,075     7,068     7,469
    Diluted........................        6,010     6,014      6,173     7,162     7,469


                                                         At December 31,

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

                                          1993       1994      1995       1996       1997
                                          ----       ----      ----       ----       ----
                                                        (In thousands)
Balance Sheet Data:
Working capital                         $14,618     $17,146  $24,135  $ 41,557   $ 35,064
Total assets                             23,993      26,816   49,595    56,782     48,515
Long-term debt                              -           -        -         -          -
Total stockholders' equity               16,199      19,303   27,274    47,355     40,503
</TABLE>





ITEM 7 - MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND       
RESULTS OF OPERATIONS

This Report contains  statements that are  "forward-looking  statements" as that
term is defined under the Private Securities  Litigation Reform Act of 1995 (the
"Act") and releases issued by the Securities and Exchange Commission.  The words
"believe" "expect,"  "anticipate,"  "estimate," "may," "will," "plan," "intend,"
"could,"  "estimate,"  "is  being,"  "goal"  and  other  expressions  which  are
predictions  of or indicate  future events and trends and which do not relate to
historical   matters  identify   forward-looking   statements.   Forward-looking
statements  involve known and unknown  risks,  uncertainties  and other factors,
which may cause the actual  results,  performance or achievements of the Company
to  differ   materially  from   anticipated   future  results,   performance  or
achievements expressed or implied by such forward-looking statements.

Examples of these  risks,  uncertainties,  and other  factors  include,  without
limitation,  the overall state of the PC and PC communications markets,  pricing
and other competitive conditions, the timing of orders, market acceptance of the
Company's or its OEM customers'  products,  the timing of the  announcement  and
introduction of new products by the Company and its  competitors,  variations in
the Company's  product mix and component costs,  variations in the proportion of
sales  made to  retailers,  distributors  and OEMs,  the  financial  health  and
inventory levels of the Company's customers, seasonal promotions by the Company,
its customers and  competitors,  the timing of  expenditures  in anticipation of
future sales,  the timing of product  development  costs,  the  availability  of
materials  and labor  necessary  to produce the  Company's  products and general
economic conditions.  In addition to the foregoing,  the Company's actual future
results  could differ  materially  from those  projected in the  forward-looking
statements  as a result of the risk factors set forth in the  Company's  various
filings with the  Securities  and Exchange  Commission and of changes in general
economic  conditions,  changes in interest rates and changes in the  assumptions
used in making  such  forward-looking  statements.  The  Company  undertakes  no
obligation to publicly update or revise any forward-looking  statement,  whether
as a result of new information, future events or otherwise.

Overview

Zoom was established in 1977, and initially  produced and marketed speed dialers
and other specialty telephone  accessories.  The Company shipped its first modem
in 1983 and its first  faxmodem  in 1990.  Faxmodems  and related  products  now
comprise  substantially  all of the  Company's  revenues.  The Company sells its
products both domestically and internationally through high-volume retailers and
distributors, and to PC manufacturers and other OEMs.

In 1997 the Company's net sales decreased by 35.6% to $64.5 million.  In 1997 as
compared to 1996,  the  Company's  sales to retailers  and  distributors  in the
United States decreased by 19% to $45.4 million,  the Company's  worldwide sales
to  OEM  customers  decreased  by  70%  to  $5.7  million,   and  the  Company's
international sales (excluding sales to OEMs) decreased by 28% to $13.4 million.

The Company's  results of operations have been and may continue to be subject to
significant fluctuations.  The results for a particular period may vary due to a
number of factors,  including the overall state of the PC and PC  communications
markets, pricing and other competitive conditions,  the timing of orders, market
acceptance of the Company's or its OEM  customers'  products,  the timing of the
announcement   and   introduction  of  new  products  by  the  Company  and  its
competitors,  variations  in the  Company's  product  mix and  component  costs,
variations in the proportion of sales made to retailers,  distributors and OEMs,
the financial health and inventory levels of the Company's  customers,  seasonal
promotions  by the  Company,  its  customers  and  competitors,  the  timing  of
expenditures in anticipation of future sales, the timing of product  development
costs,  the  availability  of  materials  and labor  necessary  to  produce  the
Company's  products and general economic  conditions.  The Company also believes
that its sales are seasonal,  with increased  sales  generally  occurring in the
fourth quarter  reflecting holiday sales. The Company expects that its quarterly
operating  results will continue to fluctuate in the future as a result of these
and other factors.

The Company  continually  seeks to improve its product designs and manufacturing
approach  in order to reduce  its  costs.  The  Company  pursues a  strategy  of
outsourcing rather than internally  developing its faxmodem chipsets,  which are
application-specific  integrated  circuits that form the technology base for its
faxmodems.  By  outsourcing  the  chipset  technology,  the  Company  is able to
concentrate  its research and  development  resources on faxmodem system design,
leverage the  extensive  research and  development  capabilities  of its chipset
suppliers,  and reduce its development time and associated costs and risks. As a
result  of  this  approach,  the  Company  is able to  quickly  develop  new and
innovative  products  while  maintaining a relatively  low level of research and
development  expense as a  percentage  of sales.  The  Company  also  outsources
aspects of its  manufacturing to contract  assemblers as a means of reducing its
fixed  labor  costs and capital  expenditures,  and to provide the Company  with
greater flexibility in its capacity planning.

The Company's gross margins are typically  significantly  higher for its branded
product  sales to  retailers  and  distributors,  both in the United  States and
internationally,  than for sales to OEMs.  However,  the  increased  margins for
sales to retailers and  distributors  are generally  offset by higher  operating
expenses  associated  with those sales than for sales to OEMs.  These  increased
operating  expenses   typically  include  costs  for  cooperative   advertising,
technical support and sales commissions.

The market for faxmodems has been characterized by rapid  technological  change,
frequent product introductions, evolving industry requirements and short product
life cycles.  When component costs drop and  competitive  and enhanced  products
become available, the Company's products are susceptible to price decreases. The
Company has a policy of offering price protection to certain of its retailer and
distributor  customers for some or all of their on-hand inventory,  whereby when
the Company reduces its prices for a product, the customer receives a credit for
the difference  between the original  purchase  price and the Company's  reduced
price. In 1995, 1996 and 1997 the Company's results of operations were adversely
affected by reductions in prices which  resulted in relatively  high charges for
price  protection.  The impact of price reductions is mitigated by the Company's
introduction  of new  products,  the  adoption of  lower-cost  technologies  and
product  designs,  and the  implementation  of  other  measures  to  reduce  its
manufacturing and other costs.



Results of Operations

The following table sets forth certain  financial data for the periods indicated
as a percentage of net sales:
<TABLE>
<CAPTION>

                                                                     Years Ending December 31,
                                                           ----------------------------------
<S>                                                            <C>        <C>         <C> 
                                                               1995       1996        1997
                                                               ----       ----        ----
Net sales..........................................            100.0%     100.0%      100.0%
Cost of goods sold.................................             75.7       79.7        87.3
                                                                ----       ----        ----
    Gross profit...................................             24.3       20.3        12.7
Operating expenses:
    Selling........................................              9.3       10.2        17.2
    General and administration.....................              2.9        3.7         7.7
    Research and development.......................              1.9        2.9         6.5
                                                                 ---        ---         ---
    Total operating expenses.......................             14.1       16.8        31.4
                                                                ----       ----        ----
Operating income (loss)............................             10.2        3.5       (18.7)
     Interest income (expense), net................             (0.0)       0.3         1.1
                                                                -----       ---         ---
Income before income taxes.........................             10.2        3.8       (17.6)
     Income tax expense                                          3.9        1.3        (6.5)
                                                                 ---        ---        -----
(benefit)................................................
Net income (loss)..................................              6.3%       2.5%      (11.1)%
                                                                 ===        ===       ======
</TABLE>


Year Ending December 31, 1997 Compared to Year Ending December 31, 1996

Net  Sales.  Net sales  decreased  35.6% to $64.5  million  in 1997 from  $100.2
million in 1996. The  availability of pre-standard 56K modems reduced 33.6K unit
volumes and average selling prices.  The lack of a standard for 56K and the slow
deployment of central  sites  compatible  with the Company's  K56flex 56K modems
caused  low sales of 56K modems  until  late in 1997.  The result was an overall
reduction in unit  volumes and average  selling  prices.  The decline in average
selling prices was further exacerbated by severe price competition and a decline
in modem chipset prices. The Company  experienced  decreases in net sales in all
of its sales  channels.  North  American  non-OEM  sales  decreased 26% to $45.4
million in 1997,  non-OEM sales  outside  North  America  decreased 28% to $13.4
million, and worldwide OEM sales decreased 70% to $5.7 million.

Gross  Profit.  Gross profit as a percentage  of net sales  declined to 12.7% in
1997 from 20.3% in 1996.  This decline in gross margin was caused by a number of
factors,  including  increased channel price protection due to the rapid decline
in prices, increased inventory reserves against slower speed modems, write-downs
of the Company's inventory of modem chipsets including lower speed modems due to
declining  chipset  costs,  and the impact of lower  volumes  on  certain  fixed
manufacturing costs. For most faxmodems models, the decline in selling price was
partially offset by declining part costs.

Selling Expenses.  Selling expenses  increased 8.7% to $11.1 million or 17.2% of
net sales in 1997 from $10.2 million or 10.2% of net sales in 1996. The increase
was  primarily  due  to  increased  cooperative   advertising  expenses  in  the
high-volume retailer and Internet Service Provider channels.

General  and  Administrative  Expenses.   General  and  administrative  expenses
increased  35% to $4.9 million or 7.7% of net sales in 1997 from $3.7 million or
3.7% of net  sales  in  1996.  This  increase  was  primarily  due to  increased
personnel expenses, bad debt expenses and foreign exchange losses.

Research and Development  Expenses.  Research and development expenses increased
42% to $4.2  million  or 6.5% of net sales in 1997 from $2.9  million or 2.9% of
net sales in 1996.  The increase was  primarily due to the addition of personnel
to support the Company's development efforts in a number of new areas, including
the remote access video and ISDN areas,  and to costs associated with broadening
the product line and international regulatory approvals.

Interest  Income.  Net interest income  increased to $503,680 in 1997 from a net
interest  income  of  $233,963  in 1996.  The  increase  was the  result  of the
Company's higher average cash balances during the last year compared to 1996.

Other Income (Expense),  Net. Other non-interest income increased to $237,273 in
1997 from  $58,551 in 1996.  The  increase  was  primarily  the result of higher
sublease income compared to 1996.

Provision for Income Taxes. The Company's effective tax rate increased to 37% in
1997 from 35.7% in 1996 due  primarily  to the  inapplicability  of the  foreign
sales corporation provisions to the Company's 1997 loss before income taxes.

Year Ending December 31, 1996 Compared to Year Ending December 31, 1995

Net Sales.  Net sales  increased 3% to $100.2 million in 1996 from $97.0 million
in 1995. Unit volumes  declined as significant  increases in V.34 28,800 bps and
33,600 bps  shipments  did not fully  offset  dramatic  declines in shipments of
14,400 bps  faxmodems.  Overall,  the  average  selling  price of the  Company's
faxmodems  rose as the product mix shifted to V.34  faxmodems,  which  typically
have higher prices than 14,400 faxmodems.  The Company experienced  increases in
net sales in its worldwide OEM and international (excluding sales to OEMs) sales
channels  during 1996 compared to 1995 as worldwide  OEM sales  increased 57% to
$19.0 million and international sales (excluding sales to OEMs) increased by 28%
to $18.7  million.  Sales to retailers  and  distributors  in the United  States
decreased 12% to $61.0 million in 1996 compared to 1995.

Gross  Profit.  Gross profit as a percentage  of net sales  declined to 20.3% in
1996 from 24.3% in 1995.  This  decline in gross  margin  was  primarily  due to
increased price  protection  afforded certain  retailers and inventory  reserves
against slower speed modems recognized during the year. In addition, the Company
increased its percentage of sales to OEM customers,  which typically carry lower
gross margins.  These  decreases were partially  offset by declining parts costs
for most faxmodem models.

Selling  Expenses.  Selling expenses  increased 13% to $10.2 million or 10.2% of
net sales in 1996 from $9.0  million or 9.3% of net sales in 1995.  The increase
was  primarily  due to added costs  associated  with the sales and  marketing of
products  acquired from Tribe Computer Works and to increased  payroll  expenses
for sales,  technical  support and customer service  personnel.  These increases
were  partially  offset by lower  selling  costs  associated  with the Company's
increased  percentage  of OEM sales,  which  generally  require a lower level of
selling expense than other sales.

General  and  Administrative  Expenses.   General  and  administrative  expenses
increased  29% to $3.7 million or 3.7% of net sales in 1996 from $2.8 million or
2.9% of net sales in 1995. This increase was primarily due to increased  payroll
expense for  management  information  systems and new business  development,  to
enhance infrastructure and explore new areas for growth.

Research and Development  Expenses.  Research and development expenses increased
60% to $2.9  million  or 2.9% of net sales in 1996 from $1.8  million or 1.9% of
net sales in 1995.  The increase was  primarily due to the addition of personnel
to support the Company's development efforts in a number of new areas, including
the remote  access and ISDN areas,  and to costs  associated  with  domestic and
international regulatory approvals.

Interest Income,  Net. Net interest income increased to $233,963 in 1996 from an
expense of $81,893 in 1995. The increase was the result of the Company's  higher
average cash balances  during the last three  quarters of 1996 compared to 1995.
The Company  completed a secondary  offering in April of 1996 which raised a net
$11,573,218.  These funds were used to pay off the line of credit which was used
during  1995 as well as to fund  future  operations.  Any  remaining  funds were
invested in various financial instruments generating interest income.

Provision for Income Taxes. The Company's  effective tax rate decreased to 35.7%
in 1996 from 38.5% in 1995 due to the benefit of increased foreign sales through
the Company's Foreign Sales Corporation  ("FSC") and a decrease in the effective
state income tax rate.

Liquidity and Capital Resources

On  December  31,  1997,  the  Company  had  working  capital of $35.1  million,
including $11.3 in cash and cash equivalents.  The Company also has a secured $5
million line of credit expiring  September 30, 1998. No amounts were outstanding
under this line of credit as of December  31,  1997.  This line of credit  bears
interest  at the bank's  prime rate (8.50% on December  31,  1997).  The line of
credit is secured and contains certain financial and other covenants.

In  1997  the  Company's  net  cash   provided  by  operating   activities   was
approximately $2.7 million. During that period inventory and accounts receivable
decreased  by $7.0  million  and $5.6  million,  respectively.  The  decrease in
inventory  was primarily due to lower sales in 1997 as compared to sales in 1996
and the Company's efforts to reduce inventory levels,  particularly with respect
to lower speed  faxmodems.  The Company  designs its  faxmodems  to  accommodate
last-minute  insertion of the high-cost  chipsets and  unexpected  delays in the
delivery  of  these   chipsets  can  result  in  increased   raw  materials  and
work-in-process  inventory.  Increased  levels of inventory may adversely affect
the  Company's  liquidity and increase the risk of inventory  obsolescence  or a
decline  in the  market  value  of such  inventory.  The  decrease  in  accounts
receivable  was  primarily  attributable  to lower  sales in 1997 as compared to
sales in 1996.  These  sources of cash were offset by the  reduction of accounts
payable and accrued expenses of $1.4 million, and the Company's $7.1 million net
loss.

The  Company's  capital  expenditures  in 1997  of  approximately  $0.8  million
consisted  primarily of the Company's computer hardware and software,  continued
renovations to its headquarters, and purchases of other equipment and tooling.

The Company believes that its existing cash,  together with funds generated from
operations  and available  sources of financing,  will be sufficient to meet its
normal working capital requirements.

Year 2000 Date Conversion

The Company has implemented a comprehensive  Enterprise Resource Planning System
which is fully  prepared  for the year 2000.  The  Company is in the  process of
implementing  new  systems for all  remaining  non  mission  critical,  computer
systems. All major conversions are complete and the implementation  schedule for
minor systems  anticipates a complete  conversion  prior to January 1, 2000. The
Company presently believes that, with the completed  conversions and anticipated
conversions  to new software,  the year 2000 problem will not pose a significant
operational problem to the Company.  However, there can be no assurance that the
systems  of other  parties  upon  which  the  Company's  businesses  also  rely,
including but not limited to the  Company's  customers  and  suppliers,  will be
converted on a timely basis. The Company's  business,  financial  condition,  or
results of operations could be materially  adversely  affected by the failure of
its systems or those of other parties to operate or properly manage dates beyond
1999.

Other

A portion of the  Company's  revenues are subject to the risks  associated  with
international  sales.   Although  most  of  the  Company's  product  prices  are
denominated  in the United  States  currency,  customers  in  foreign  countries
generally  evaluate  purchases of products  such as those sold by the Company on
the purchase price expressed in the customer's currency.  Therefore,  changes in
foreign  currency  exchange  rates  may  adversely  affect  the  demand  for the
Company's products.

New Accounting Pronouncements

In 1997,  the  Company  adopted  Statement  of  Financial  Accounting  Standards
("SFAS") No. 128,  "Earnings per Share." SFAS 128 establishes a different method
of computing net income (loss) per share than was required  under the provisions
of  Accounting  Principles  Board  Opinion No. 15.  Under SFAS 128,  the Company
presents  both basic net income  (loss) per share and diluted net income  (loss)
per share.  The impact on diluted net income  (loss) per share was not material.
Prior periods presented have been restated to comply with the provisions of SFAS
128.

In June 1997,  the Financial  Accounting  Standards  Board issued  Statement 130
(SFAS 130),  "Reporting  Comprehensive  Income," which establishes standards for
reporting and display of  comprehensive  income and its components in a full set
of  general-purpose  financial  statements.  Under this  concept,  all revenues,
expenses,  gains and losses recognized during the period are included in income,
regardless of whether they are considered to be the results of operations of the
period.  SFAS 130,  which  becomes  effective for the Company in its year ending
December 31, 1998, is not expected to have a material impact on the consolidated
financial statements of the Company.



In June 1997,  the Financial  Accounting  Standards  Board issued  Statement 131
(SFAS  131),   "Disclosures   about   Segments  of  an  Enterprise  and  Related
Information,"  which  establishes  standards  for the way that  public  business
enterprises  report  selected  information  about  operating  segments in annual
financial  statements  and  requires  that  those  enterprises  report  selected
information   about  operating   segments  in  interim   financial   reports  to
shareholders.  It also  establishes  standards  for  related  disclosures  about
products and services,  geographic  areas and major  customers.  SFAS 131, which
becomes  effective  for the Company in its year ending  December  31,  1998,  is
currently not expected to have a material  impact on the Company's  consolidated
financial  statements  and  disclosures  as the Company  does not have  multiple
reportable operating segments.






ITEM 8 - FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

                                    ZOOM TELEPHONICS, INC.
                          INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
                                         AND SCHEDULE
<TABLE>
<S>                                                                                       <C>
                                                                                          Page
Index to Consolidated Financial Statements                                                  27
Independent Auditors' Report                                                                28
Consolidated Balance Sheets as of December 31, 1996 and 1997                                29
Consolidated Statements of Operations for the years ending December 31, 1995, 1996 and      30
1997
Consolidated Statements of Stockholders' Equity for the years ending December 31,           31
1995, 1996 and 1997
Consolidated Statements of Cash Flows for the years ending December 31, 1995, 1996 and      32
1997
Notes to Consolidated Financial Statements                                                  33
Schedule II:  Valuation and Qualifying Accounts for Fiscal Years Ending December 31,
1995, 1996 and 1997                                                                         85
</TABLE>

ITEM 9 - CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND       
FINANCIAL DISCLOSURE

There were no changes in or  disagreements  with  accountants  on  accounting or
financial disclosure during the period covered by this report.

<PAGE>

                                           PART III

ITEM 10 - DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

Information  required by this item appears under the caption "Executive Officers
of the  Registrant"  in Part 1,  Item 1 --  Business,  and  under  the  captions
"Election of Directors"  and  "Compliance  With Section 16(a) of the  Securities
Exchange Act" in the Company's  definitive  proxy  statement for its 1998 annual
meeting  which will be filed with the SEC in April 1998  pursuant to  Regulation
14A, and is incorporated herein by reference.


ITEM 11 - EXECUTIVE COMPENSATION

Information  required  by  this  item  appears  under  the  captions  "Executive
Compensation,"  "Directors' Compensation" and "Proposal No. 2", in the Company's
definitive  proxy statement for its 1998 annual meeting which will be filed with
the SEC in April 1998, pursuant to Regulation 14A, and is incorporated herein by
reference.


ITEM 12 - SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

Information  required  by this item  appears  under the  captions  "Election  of
Directors" and "Security  Ownership of Certain Beneficial Owners and Management"
in the Company's  definitive  proxy  statement for its 1998 annual meeting which
will be filed with the SEC in April 1998,  pursuant to  Regulation  14A,  and is
incorporated herein by reference.


ITEM 13 - CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

None.
<PAGE>


                                            PART IV

ITEM 14 - EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K

<TABLE>
<S><C>    <C>    <C>
(a)              Financial Statements, Schedules and Exhibits:

   (1),(2)       The  financial  statements  and required  schedules are indexed under
                 Item 8.

   (3)           Exhibits  required by the Exhibit Table of Item 601 of SEC Regulation
                 S-K.  (Exhibit numbers refer to numbers in the Exhibit Table of Item 601.)

          3.1    Articles of Continuance, filed as Exhibit 3.1 to the Annual Report on
                 Form 10-K for the fiscal year ended December 31, 1991 (the "1991 Form
                 10-K"). *

          3.2    By-Law  No. 1 of Zoom Telephonics, Inc., filed as Exhibit 3.2 to the 1991 Form 10-K. *

          3.3    By-Law  No. 2 of Zoom Telephonics, Inc., filed as Exhibit 3.3 to the 1991 Form 10-K. *

       **10.1    1991 Stock Option Plan, as amended, of Zoom Telephonics,  Inc., filed
                 as Exhibit 10.1 to the Annual Report on Form 10-K for the fiscal year
                 ended December 31, 1994 (the "1994 Form 10-K"). *

       **10.2    1991  Director  Stock Option Plan, as amended,  of Zoom  Telephonics,  Inc.,  filed as
                 Exhibit 10.2 to the June 1996 Form 10-Q. *

         10.3    Letter Agreement  Regarding  Revolving Line of Credit by and between Zoom Telephonics,
                 Inc. and Fleet National Bank.

         10.4    Loan Modification  Agreement by and between Zoom Telephonics, Inc. and Fleet National Bank.

         10.5    Lease between Zoom Telephonics,  Inc. and "E" Street Associates, filed as Exhibit 10.5
                 to the June 1996 Form 10-Q. *

         10.6    Form of Indemnification Agreement, filed as Exhibit 10.6 to the June 1996 Form 10-Q. *

         10.7    Amended and Restated  Promissory  Note issued by the Company in favor
                 of Fleet National Bank.

         10.8    Security Agreement between the Company and Fleet National Bank.

       **10.9    Employment Agreement.

         11.     Statement re: computation of per share income (loss).

         21.     Subsidiaries,  filed as Exhibit  21 to the  Annual  Report on Form 10-K for the fiscal
                 year ended December 31, 1996. *

         23.     Consent of KPMG Peat Marwick LLP.

         27.     Financial Data Schedule.

         27.1    Financial Data Schedule.  1996

         27.2    Financial Data Schedule.  1995

(b)              Reports on Form 8-K.

                 No reports on Form 8-K have been filed  during the last  quarter  for
                 the period covered by this report.

(c)              Exhibits  -  See  Item   14(a)(3)   above  for  a  list  of  Exhibits
                 incorporated herein by reference or filed with this Report.

(d)              Schedules - Schedule II: Valuation and Qualifying Accounts. Schedules
                 other than those listed above have been omitted since they are either
                 inapplicable or not required.
</TABLE>

     *     In accordance  with Rule 12b-32 under the Securities  Exchange Act of
           1934, as amended, reference is made to the documents previously filed
           with the  Securities  and Exchange  Commission,  which  documents are
           hereby incorporated by reference.

    **     Compensation Plan or Arrangement.

<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.


                                                 ZOOM TELEPHONICS, INC.
                                                 (Registrant)


                              By:        /s/ Frank B. Manning
                                        Frank B. Manning, President

Date:  March 31, 1998

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 indicated.


<TABLE>
<S>                              <C>                                            <C>
Signature                        Title(s)                                       Date




/s/ Frank B. Manning             Principal Executive Officer and                March 31, 1998
- --------------------------                                                                    
Frank  B. Manning                Chairman of the Board




/s/ Robert A. Crist              Principal Financial and Accounting Officer     March 31, 1998
- -----------------------------                                                                 
Robert A. Crist




/s/ Peter R. Kramer              Director                                       March 31, 1998
- --------------------------                                                                    
Peter R. Kramer




/s/ Bernard Furman               Director                                       March 31, 1998
Bernard Furman



/s/ L. Lamont Gordon             Director                                       March 31, 1998
- --------------------------                                                                    
L. Lamont Gordon



/s/ J. Ronald Woods              Director                                       March 31, 1998
- --------------------------                                                                    
J. Ronald Woods
</TABLE>
<PAGE>




                                    ZOOM TELEPHONICS, INC.
                          INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
                                         AND SCHEDULE

<TABLE>
<S>                                                                                        <C>
                                                                                           Page

Independent Auditors' Report                                                                28
Consolidated Balance Sheets as of December 31, 1996 and 1997                                29
Consolidated Statements of Operations for the years ending December 31, 1995, 1996 and      30
1997
Consolidated Statements of Stockholders' Equity for the years ending December 31, 1995,     31
1996 and 1997
Consolidated Statements of Cash Flows for the years ending December 31, 1995, 1996 and      32
1997
Notes to Consolidated Financial Statements                                                  33
Schedule II:  Valuation and Qualifying Accounts for Fiscal Years Ending December 31,
1995, 1996 and 1997                                                                         85
</TABLE>
<PAGE>

                                 Independent Auditors' Report


The Board of Directors and Stockholders
Zoom Telephonics, Inc.:


We  have  audited  the   accompanying   consolidated   balance  sheets  of  Zoom
Telephonics,  Inc. and  subsidiaries  as of December 31, 1997 and 1996,  and the
related  consolidated  statements of operations,  stockholders'  equity and cash
flows for each of the years in the  three-year  period ended  December 31, 1997.
These consolidated  financial statements are the responsibility of the Company's
management.  Our  responsibility is to express an opinion on these  consolidated
financial statements based on our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated  financial statements referred to above present
fairly, in all material  respects,  the financial  position of Zoom Telephonics,
Inc. and subsidiaries as of December 31, 1997 and 1996, and the results of their
operations and their cash flows for each of the years in the  three-year  period
ended  December 31, 1997,  in  conformity  with  generally  accepted  accounting
principles.




                                                     KPMG Peat Marwick LLP



Boston, Massachusetts
February 13, 1998
<PAGE>

                                    ZOOM TELEPHONICS, INC.
                                 CONSOLIDATED BALANCE SHEETS
<TABLE>
<CAPTION>


                                                                       December 31,
    Assets                                                       1996              1997
    ------                                                       ----              ----

<S>                                                       <C>               <C>
Current assets:
    Cash and cash equivalents                             $   9,172,186     $   11,281,337
                                                                       
    Accounts receivable, net of reserves for doubtful
      accounts, returns, and allowances of $3,564,101
      in 1996 and $4,518,206 in 1997 (note 10)               18,970,041         13,365,413
    Inventories (note 3)                                     19,057,575         12,034,349
    Refundable income taxes                                   1,219,000          3,793,963
    Net deferred tax assets (note 9)                          2,032,683          2,388,189
    Prepaid expenses and other current assets                   532,808            212,989
                                                                -------            -------
             Total current assets                            50,984,293         43,076,240
                                                             ----------         ----------                   

Property, plant and equipment, net (note 4)                   4,081,406          3,967,767
  Goodwill, net of accumulated amortization of                1,558,764          1,393,874
  $76,149 in 1996 and $241,039 in 1997 (note 12)
Other assets                                                    157,691             77,392
                                                                -------             ------

              Total assets                                 $  56,782,154    $   48,515,273
                                                                     


    Liabilities and Stockholders' Equity


Current liabilities:
    Accounts payable                                       $   8,074,472    $    6,204,370
    Accrued expenses                                           1,352,725         1,808,308
                                                               ---------         ---------
             Total current liabilities                         9,427,197         8,012,678
                                                               ---------         ---------

Commitments and contingencies (note 5)

Stockholders' equity (notes 7 and 8):
  Common stock, no par value. Authorized
  25,000,000 shares; issued and outstanding
  7,446,842 shares at December 31, 1996 and
  7,472,371 shares at December 31, 1997                       24,890,468         25,170,267
  Retained earnings                                           22,464,489         15,332,328
                                                              ----------         ----------
             Total stockholders' equity                    $  47,354,957    $    40,502,595
                                                             ===========         ==========

             Total liabilities and stockholders'equity     $  56,782,154    $    48,515,273
                                                             ===========         ==========
                                                                          
</TABLE>
                                                                                



See accompanying notes to consolidated financial statements.


<PAGE>



                                    ZOOM TELEPHONICS, INC.
                            CONSOLIDATED STATEMENTS OF OPERATIONS
                        Years Ending December 31, 1995, 1996 and 1997
<TABLE>
<CAPTION>


                                                         1995              1996           1997
                                                         ----              ----           ----

<S>                                            <C>              <C>              <C>
Net sales (notes 10 and 15)                    $    96,997,313  $   100,195,021  $  64,478,457
Cost of goods sold                                  73,401,620       79,803,297     56,298,264
                                                    ----------       ----------     ----------
            Gross profit                            23,595,693       20,391,724      8,180,193
                                                    ----------       ----------      ---------

Operating expenses:
        Selling                                      9,023,443       10,215,528     11,103,437
        General and administrative                   2,839,775        3,674,134      4,956,916
        Research and development                     1,835,482        2,940,153      4,182,220
                                                     ---------        ---------      ---------
                                                    13,698,700       16,829,815     20,242,573
                                                    ----------       ----------     ----------

             Operating income (loss)                 9,896,993        3,561,909    (12,062,380)

Interest income                                         81,893          233,963        503,680
Other, net                                            (115,206)          58,551        237,273
                                                      ---------          ------        -------
             Total other income(expense), net          (33,313)         292,514        740,953
                                                       -------          -------        -------

             Income (loss) before income taxes       9,863,680        3,854,423    (11,321,427)

Income tax expense (benefit) (note 9)                3,800,000        1,374,501     (4,189,266)
                                                     ---------        ---------     -----------
                                                                     
                     Net income (loss)         $     6,063,680      $ 2,479,922   $ (7,132,161)
                                                     =========        =========     ===========

Net income (loss) per share (note 2):
        Basic                                  $          1.00      $       .35   $       (.95)                                  
                                                          ====              ===           =====
        Diluted                                $           .98      $       .35   $       (.95)    
                                                           ===              ===           =====

Weighted average common and common equivalent shares (note 8):
        Basic                                        6,074,788        7,068,314       7,468,758 
                                                     =========        =========       =========        
        Diluted                                      6,173,265        7,162,391       7,468,758
                                                     =========        =========       =========
                                                                      
</TABLE>


See accompanying notes to consolidated financial statements.
<PAGE>

                                    ZOOM TELEPHONICS, INC.
                       CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY


<TABLE>
<CAPTION>

                                                                                       Total
                                                       Common Stock            Retained      stockholders'
                                                   Shares         Amount       earnings         equity

<S>                                               <C>        <C>           <C>             <C>         
Balance at December 31, 1994                      6,014,480  $  5,382,134  $  13,920,887   $ 19,303,021
   Net income                                       -            -             6,063,680      6,063,680
   Exercise of stock options (note 8)               186,450     1,570,350        -            1,570,350
   Tax benefit from exercise of nonqualified
     stock options (notes 8 and 9)                   -            337,093          -            337,093
                                                ------------      -------   --------------      -------

Balance at December 31, 1995                      6,200,930     7,289,577     19,984,567     27,274,144

   Net income                                       -             -            2,479,922      2,479,922
   Net proceeds from stock offering (note 7)        800,000    11,573,218       -            11,573,218
   Stock issuance for product line acquisition
    (note 12)                                       102,641     1,590,929        -            1,590,929
   Exercise of stock options (note 8)               343,271     2,825,543        -            2,825,543
   Tax benefit from exercise of nonqualified
     stock options (notes 8 and 9)                   -          1,611,201        -            1,611,201
                                                     -------    ---------        -------      ---------

Balance at December 31, 1996                      7,446,842    24,890,468     22,464,489     47,354,957

   Net income (loss)                                 -             -          (7,132,161)    (7,132,161)
   Exercise of stock options (note 8)                25,529       204,232         -             204,232
   Tax benefit from exercise of nonqualified
     stock options (notes 8 and 9)                   -             75,567         -              75,567
                                                   --------      --------      ----------     ---------



Balance at December 31, 1997                      7,472,371  $ 25,170,267  $  15,332,328   $ 40,502,595
                                                  =========    ==========     ==========     ==========
</TABLE>


See accompanying notes to consolidated financial statements.
<PAGE>

                                    ZOOM TELEPHONICS, INC.
                            CONSOLIDATED STATEMENTS OF CASH FLOWS
                        Years Ending December 31, 1995, 1996 and 1997
<TABLE>
<CAPTION>

                                                                    1995           1996            1997
                                                                    ----           ----            ----

<S>                                                           <C>           <C>            <C>
Cash flows from operating activities:
    Net income (loss)                                         $ 6,063,680   $  2,479,922   $  (7,132,161)
    Adjustments to reconcile net income (loss) to net cash 
       provided by (used in) operating activities:
         Depreciation and amortization                            252,400        674,162       1,116,443
         Net deferred income taxes                               (416,789)      (519,222)       (355,506)
         Changes in assets and liabilities:
            Accounts receivable                                (7,609,226)     1,426,273       5,604,628
            Inventories                                       (14,624,140)     5,211,667       7,023,226
            Prepaid expenses and other current assets              28,553       (715,728)        400,118
            Refundable income taxes                                 -         (1,219,000)     (2,574,963)
            Accounts payable and accrued expenses              12,280,557    (10,156,983)     (1,414,519)
            Income taxes payable                                   27,252       (236,493)        -
            Tax benefit from exercise of nonqualified
               stock options                                      337,093      1,611,201          75,567
                                                                  -------      ---------          ------
                    Net cash provided by (used in)
                        operating activities                   (3,660,620)    (1,444,201)      2,742,833
                                                               -----------    -----------     -----------


Cash flows from investing activities:
    Purchase of certain assets of a business product line           -            (81,375)         -
    Additions to property, plant and equipment                 (1,234,459)    (1,351,670)       (837,914)
                                                                ----------     ----------       ---------

                    Net cash used in investing activities      (1,234,459)    (1,433,045)       (837,914)
                                                               -----------    -----------       ---------
  

Cash flows from financing activities:
    Net borrowings (repayments) under revolving
       bank line of credit (note 6)                              2,500,000     (2,500,000)         -
    Net proceeds from issuance of common stock                      -          11,573,218          -
    Exercise of nonqualified stock options                       1,570,350      2,825,543        204,232
                                                                 ---------      ---------        -------
                    Net cash provided by financing
                        activities                               4,070,350     11,898,761        204,232
                                                                 ---------     ----------        -------

Net increase (decrease) in cash and cash equivalents              (824,729)     9,021,515      2,109,151

Cash and cash equivalents at beginning of year                     975,400        150,671      9,172,186
                                                                   -------        -------      ---------

Cash and cash equivalents at end of year                     $     150,671   $  9,172,186  $  11,281,337
                                                                   =======      =========     ==========

</TABLE>

See accompanying notes to consolidated financial statements.


<PAGE>


                                    ZOOM TELEPHONICS, INC.
                          Notes to Consolidated Financial Statements
                                  December 31, 1996 and 1997

(1)    Incorporation and Nature of Operations

       Zoom Telephonics,  Inc. (the "Company") is incorporated under the federal
         laws of  Canada  (Canada  Business  Corporations  Act).  Its  principal
         business activity, the design,  production,  and marketing of faxmodems
         and  other   communication   peripherals,   is  conducted  through  its
         wholly-owned subsidiary, Zoom Telephonics, Inc. ("Zoom US"), a Delaware
         corporation based in Boston, Massachusetts.

(2)    Summary of Significant Accounting Policies

       (a) Basis of Presentation
       The consolidated  financial  statements  are prepared in accordance  with
         United States generally accepted  accounting  principles and are stated
         in US  dollars.  Any  differences  between  US and  Canadian  generally
         accepted  accounting  principles would have an insignificant  impact on
         the consolidated financial statements.

       Thepreparation  of financial  statements  in  conformity  with  generally
          accepted  accounting  principles requires management to make estimates
          and  assumptions  that  affect  the  reported  amounts  of assets  and
          liabilities and disclosure of contingent assets and liabilities at the
          date of the financial  statements and the reported  amounts of revenue
          and expenses  during the reporting  period.  Actual results may differ
          from those estimates.

       (b) Principles of Consolidation
       The consolidated financial statements include the accounts of the Company
         and  its  wholly-owned  subsidiary,   Zoom  US,  and  its  wholly-owned
         subsidiaries, Zoom Foreign Sales Corporation, Zoom Telephonics, Ltd. (a
         United Kingdom  corporation),  and Tribe Acquisition  Corporation.  All
         significant intercompany balances and transactions have been eliminated
         in consolidation.

       (c) Cash and Cash Equivalents
       The Company  considers all investments  with original  maturities of less
         than 90 days to be cash equivalents.

       (d) Inventories
       Inventories  are  carried  at the  lower  of  cost  or  market.  Cost  is
         determined using the first-in, first-out (FIFO) method.

       (e)Property, Plant and Equipment

       Property,   plant  and   equipment   is  stated  and  recorded  at  cost.
         Depreciation of property,  plant and equipment is provided by using the
         straight-line  method at rates  sufficient to amortize the costs of the
         fixed assets over their  estimated  useful lives.  In  accordance  with
         Financial Accounting Standards Board Statement No. 121, "Accounting for
         the  Impairment of Long-Lived  Assets and for  Long-Lived  Assets to be
         Disposed Of," the Company reviews its long-lived  assets for impairment
         whenever events or changes in circumstances  indicate that the carrying
         amount of an asset may not be recoverable. If it is determined that the
         carrying  amount of an asset cannot be fully  recovered,  an impairment
         loss is recognized.

       (f)Goodwill

       Goodwill  resulted  from the excess of cost over fair value of net assets
         acquired  for the  purchase of a product line in June 1996 and is being
         amortized on a straight-line basis over 10 years. The Company evaluates
         the  recoverability  and remaining  life of its goodwill and determines
         whether the goodwill  should be completely or partially  written off or
         the  amortization  period  accelerated.  The Company will  recognize an
         impairment of goodwill if undiscounted  estimated future operating cash
         flows of the acquired  product line are  determined to be less than the
         carrying  amount  of  goodwill.  If the  Company  determines  that  the
         goodwill has been impaired,  the  measurement of the impairment will be
         equal to the excess of the  carrying  amount of the  goodwill  over the
         amount of discounted  estimated  future cash flows. If an impairment of
         goodwill  were to occur,  the  Company  would  reflect  the  impairment
         through a reduction in the carrying  value of goodwill.  The assessment
         of  recoverability  of goodwill  will be impacted if  estimated  future
         operating cash flows are not achieved.
<PAGE>

                                    ZOOM TELEPHONICS, INC.
                          Notes to Consolidated Financial Statements

       (g)Income Taxes
       The Company  accounts  for  income  taxes  under the asset and  liability
         method.  Under this  method,  deferred tax assets and  liabilities  are
         recognized for the future tax consequences  attributable to differences
         between the financial statement carrying amounts of existing assets and
         liabilities  and their  respective tax basis and operating loss and tax
         credit carry forwards. Deferred tax assets and liabilities are measured
         using  enacted  tax rates  expected  to apply to taxable  income in the
         years in which those temporary differences are expected to be recovered
         or settled.  The effect on  deferred  tax assets and  liabilities  of a
         change in tax rates is recognized in income in the period that includes
         the enactment date.

       (h)Income (Loss) Per Common Share
       The Company  has  adopted  SFAS No.  128,  "Earnings  per  Share,"  which
         establishes  standards for computing and presenting earnings per share,
         simplifying   previous   standards   and  making  them   comparable  to
         international earnings per share standards.

       Basic  earnings  per share is  computed  by  dividing  net  income by the
         weighted average number of common shares outstanding during the period.
         Diluted  earnings  per share is computed by dividing  net income by the
         weighted average number of common shares and dilutive  potential common
         shares outstanding during the period.  Under the treasury stock method,
         the unexercised  options are assumed to be exercised at the begining of
         the period or at issuance, if later. The assumed proceeds are then used
         to  purchase  common  shares at the  average  market  price  during the
         period.

       Potential  common  shares  for which  inclusion  would have the effect of
         increasing diluted earnings per share (i.e., antidilutive) are excluded
         from the computation.

       (i)Revenue Recognition
       Sales are  recognized  upon shipment of products to  customers,  at which
         time the Company  records  provisions  for returns,  warranty and price
         protection.

       (j)   Financial Instruments
       Financial   instruments   of  the  Company   consist  of  cash  and  cash
         equivalents,   accounts   receivable,   accounts  payable  and  accrued
         expenses.   The  carrying   amount  of  these   financial   instruments
         approximates fair value.

       (k)Stock Based Compensation
        The Company has adopted Statement of Financial  Accounting Standards No.
          123,  "Accounting  for Stock  Based  Compensation"  ("SFAS  123").  As
          permitted by SFAS 123, the Company  continues to measure  compensation
          cost in accordance  with  Accounting  Principles  Board Opinion No. 25
          (APB 25), "Accounting for Stock Issued to Employees."  Therefore,  the
          adoption  of SFAS  123 was not  material  to the  Company's  financial
          condition or results of operations;  however,  the pro forma impact on
          earnings  (loss) and earnings  (loss) per share have been disclosed in
          the Notes to Consolidated Financial Statements as required by SFAS 123
          for companies  that continue to account for  stock-based  compensation
          under APB 25.

       (l)Advertising Costs
       Advertising costs are reported in selling,  general,  and  administrative
         expenses in the accompanying  consolidated statements of operations and
         include  costs of  advertising,  production,  trade  shows,  and  other
         activities designed to enhance demand for the Company's products. There
         are no capitalized  advertising costs in the accompanying  consolidated
         balance sheets.

       (m)Reclassifications
       Certain  reclassifications  to the 1995 and 1996  consolidated  financial
         statements  have been made to conform to the 1997  presentation.  These
         reclassifications were not material.



<PAGE>

                                    ZOOM TELEPHONICS, INC.
                          Notes to Consolidated Financial Statements


(3)    Inventories

       Inventories consist of the following at December 31:
<TABLE>
<CAPTION>

                                                      1996               1997
                                                      ----               ----

<S>                                            <C>                <C>          
         Raw materials                         $   11,778,311     $   7,261,914
         Work in process                           2,968,064          2,542,260
         Finished goods                            4,311,200          2,230,175
                                                   ---------          ---------

                                               $   19,057,575     $  12,034,349
                                                   ==========        ==========
</TABLE>

(4)    Property, Plant and Equipment

       Property, plant and equipment consists of the following at December 31:
<TABLE>
<CAPTION>

                                                                                    Estimated
                                                      1996               1997       useful lives
                                                      ----               ----       ------

<S>                                            <C>                <C>                <C>                   
         Land                                  $     309,637      $     309,637          -
         Buildings and improvements                1,939,071          2,097,044      31.5
         years
         Leasehold improvements                      469,583            470,777      5 years
         Computer hardware and software            1,666,175          1,919,412      3 years
         Machinery and equipment                     427,186            444,126      5 years
         Molds, tools and dies                       807,573            961,968      5 years
         Office furniture and fixtures               433,968            523,936      5 years
                                                     -------            -------
                                                   6,053,193          6,726,899

         Less accumulated depreciation             1,971,787          2,759,132
                                                   ---------          ---------

                                               $   4,081,406      $   3,967,767
                                                   =========          =========
</TABLE>

(5)    Lease Commitments

       In August 1996,  the  Company  entered  into  a  five-year  lease  for  a
         manufacturing and warehousing facility in Boston, Massachusetts. At the
         end of the initial lease term,  the Company has an option to extend the
         lease for an additional  five years.  In July 1996, the Company entered
         into a two-year  lease for an office  facility in Alameda,  California.
         The Company  also leases  office  space in Dallas,  Texas and  off-site
         storage  facilities  in  Boston,  Massachusetts.  Under  non-cancelable
         operating leases,  rent expense was $46,897,  $275,673 and $392,010 for
         the years ending December 31, 1995, 1996 and 1997, respectively. Future
         minimum rental  payments,  excluding  executory  costs,  required under
         these operating leases for the next four years are as follows:
                                 Year                 Total

                                1998             $   351,492
                                1999                 309,708
                                2000                 309,708
                                2001                 309,708





                                    ZOOM TELEPHONICS, INC.
                          Notes to Consolidated Financial Statements


(6)    Credit Lines

       The Company's  $10 million line of credit  expired on August 31, 1997. It
         was replaced by a secured $5 million line of credit effective  November
         13, 1997 and expiring  September 30, 1998. No amounts were  outstanding
         under this line of credit as of December 31, 1997.

(7)    Secondary Stock Offering

       On April 11, 1996, the Company sold 800,000 shares of its common stock in
          a  registered  offering on a direct  placement  basis for  proceeds of
          $11,573,218,  net of expenses and underwriters  fees of $926,782.  The
          net proceeds were used to repay certain obligations of the Company and
          for general business purposes.

(8)    Stock Option Plans

       Employee Stock Option Plan
The  Employee  Stock  Option  Plan (the  "Employee  Stock  Option  Plan") is for
officers  and  certain  full-time  and  part-time   employees  of  the  Company.
Non-employee directors of the Company are not entitled to participate under this
plan. The Employee Stock Option Plan provides for the  availability of 1,500,000
shares of common stock for the  granting of employee  stock  options.  Shares of
common stock were  registered  for issuance under the Employee Stock Option Plan
in accordance  with the Securities Act of 1933.  Under this plan,  stock options
shall be granted at the discretion of the Stock Option Committee of the Board of
Directors  at an option  price not less than the fair market value of the stock.
The options are  exercisable  in  accordance  with terms  specified by the Stock
Option  Committee  not to  exceed  ten  years  from the date of  grant.  Options
outstanding under this plan are as follows:
<TABLE>
<CAPTION>

                                                                               Weighted average
                                                         Number of shares       exercise price

<S>                                                          <C>                 <C>      
         Balance at December 31, 1994                         442,800            $    8.00
            Granted                                           229,950                11.13
            Exercised                                        (150,450)                8.00
            Expired                                           (56,100)                8.00
                                                              -------                 ----

         Balance at December 31, 1995                         466,200                 9.54
            Granted                                           972,850                12.44
            Exercised                                        (343,271)                8.23
            Expired                                          (526,562)               16.37
                                                             --------                -----

         Balance at December 31, 1996                         569,217                 8.29
            Granted                                           196,650                 7.96
            Exercised                                         (19,529)                8.00
            Expired                                          (144,038)                8.81
                                                             --------                 ----

         Balance at December 31, 1997                         602,300            $    8.07
                                                              =======                 ====

</TABLE>

The following table summarizes  information  about fixed stock options under the
Employee Stock Option Plan outstanding at December 31, 1997:
<TABLE>
<CAPTION>


                              Options Outstanding                     Options Exercisable
                 ----------------------------------------------- -------------------------------

                             Weighted Average
   Range of        Number       Remaining      Weighted Average     Number     Weighted Average
Exercise Prices  Outstanding Contractual Life   Exercise Price   Exercisable    Exercise Price

<S>               <C>          <C>               <C>               <C>                <C>  
$ 6.50 to $8.63   602,300      2.66 years        $  8.07           141,327            $8.13
  =============   =======      =========          =======          =======             ====
</TABLE>
<PAGE>

                                    ZOOM TELEPHONICS, INC.
                          Notes to Consolidated Financial Statements

The Company recognized  a tax  benefit of  $337,093,  $1,611,201  and $75,567 in
   1995, 1996 and 1997,  respectively,  upon the exercise of nonqualified  stock
   options  under the  Employee  Stock  Option Plan.  These  benefits  have been
   recorded as an increase to the value of common stock.

1991 Director Stock Option Plan

In 1991, the Company established the Director Stock Option Plan (the "Directors'
   Plan").  Shares of common stock were  registered for issuance under this plan
   in accordance  with the Securities Act of 1933. This Plan was established for
   all  directors  of the  Company  except for any  director  who is a full-time
   employee or full-time officer of the Company.  Under the Directors Plan, each
   eligible director shall  automatically be granted an option to purchase 6,000
   shares of common stock on July 10 and January 10 of each year, beginning July
   10, 1991. The option price shall be the fair market value of the common stock
   on the date the option is granted.  Each option  shall  expire two years from
   the grant date. Options outstanding under this plan are as follows:
<TABLE>
<CAPTION>

                                                                               Weighted average
                                                         Number of shares       exercise price

<S>                                                            <C>               <C>      
         Balance at December 31, 1994                          72,000            $   13.22
            Granted                                            36,000                 7.50
            Exercised                                          (36,000)              10.19
            Expired                                            (36,000)              16.31
                                                               --------              -----

         Balance at December 31, 1995                          36,000                 7.44
            Granted                                            36,000                13.97
            Exercised                                          (18,000)               7.54
            Expired                                            -                      -
                                                               ------              ----

         Balance at December 31, 1996                          54,000                11.76
            Granted                                            36,000                 8.69
            Exercised                                          (6,000)                8.00
            Expired                                            (12,000)               7.00
                                                               --------               ----

         Balance at December 31, 1997                          72,000            $   11.33

                                                               ======                =====
</TABLE>

The following table  summarizes information  about fixed stock options under the
   Directors' Stock Option Plan at December 31, 1997:

<TABLE>
<CAPTION>

                              Options Outstanding                     Options Exercisable
                 ----------------------------------------------- -------------------------------

                             Weighted Average
   Range of        Number       Remaining      Weighted Average     Number     Weighted Average
Exercise Prices  Outstanding Contractual Life   Exercise Price   Exercisable    Exercise Price

<S>                   <C>      <C>               <C>              <C>           <C>      
  $  7.25 to 10.13    36,000   1.25  years       $   8.69         18,000        $   10.13
  $ 10.14 to 17.19    36,000    .25  years       $  13.97         36,000        $   13.97
                      ------                                      ------
                      72,000    .75  years       $  11.33         54,000        $   12.69
                      ======                                      ======
</TABLE>


At December 31, 1997, there were 129,613  additional  shares available for grant
   under both Plans. The per share  weighted-average fair value of stock options
   granted during 1997, 1996 and 1995 was $4.43, $4.03 and $3.58,  respectively,
   on the date of grant using the Black  Scholes  option-pricing  model with the
   following weighted-average assumptions: 1997 - expected dividend yield 0.00%,
   risk-free interest rate of 5.69%,  volatility 70% and an expected life of 3.5
   years; 1996 - expected dividend yield 0.0%, risk-free interest rate of 5.05%,
   volatility  70% and an expected life of 2.9 years;  1995 - expected  dividend
   yield 0.0%,  risk-free interest rate of 5.07,  volatility 70% and an expected
   life of 2.0 years.

The Company applies APB Opinion No. 25 in accounting  for its stock options and,
   accordingly,  no compensation  cost has been  recognized in the  accompanying
   consolidated  financial statements.  Had the Company determined  compensation
   cost based on the fair value at the grant date for its options under SFAS No.
   123, the  Company's net income (loss) and basic and diluted net income (loss)
   per share would have been reduced to the pro forma amounts indicated below.
<TABLE>
<CAPTION>

                                                    1995              1996              1997
                                                    ----              ----              ----

<S>                                              <C>              <C>              <C>           
Net income (loss)            As reported         $ 6,063,680      $  2,479,922     $  (7,132,161)
                             Pro forma             5,929,829         2,100,665        (7,718,857)

Net income (loss) per share  As reported-basic   $      1.00      $       0.35     $       (0.95)
                             Pro forma-basic            0.97              0.29             (1.03)

                             As reported-diluted $      0.98      $      0.35      $       (0.95)
                             Pro forma-diluted          0.96             0.29              (1.03)
</TABLE>

Proforma net income  (loss)  reflects  only  options  granted in 1997,  1996 and
   1995. Therefore,  the full impact of calculating  compensation cost for stock
   options under SFAS 123 is not  reflected in the pro forma  amounts  presented
   above because  compensation cost for options granted prior to January 1, 1995
   is not considered.

The  following  reconciles  the  denominators  of the diluted net income  (loss)
computations:
<TABLE>
<CAPTION>

                                      1995                     1996                    1997
                                      ----                     ----                    ----

<S>                              <C>                       <C>                      <C>
Weighted average
   number of shares
   outstanding                   6,074,788                 7,068,314                7,468,758
Incremental shares
   from the assumed
   exercise of dilutive
   stock options                   383,291                   121,027                      -
Common shares
   assumed to have
   been repurchased,
   treasury stock method          (284,814)                 (26,950)                     -
                                  ---------                 --------                --------

Weighted average
   common and common
   equivalent shares
   outstanding                    6,173,265                7,162,391                7,468,758
                                  =========                =========                =========

</TABLE>

<PAGE>

                                    ZOOM TELEPHONICS, INC.
                          Notes to Consolidated Financial Statements

(9)    Income Taxes

       Income tax  expense  (benefit)  attributable  to income  from  operations
consists of:
<TABLE>
<CAPTION>

                                                     Current         Deferred          Total


<S>                                                <C>             <C>             <C>
         Year ending December 31, 1995:
            US federal                             $ 3,299,680     $ (343,359)     $ 2,956,321
            State and local                            917,109        (73,430)         843,679
                                                       -------        -------          -------

                                                   $ 4,216,789     $ (416,789)     $ 3,800,000
                                                      =========      ========        =========

         Year ending December 31, 1996:
            US federal                             $ 1,632,391     $ (428,502)     $ 1,203,889
            State and local                            261,332        (90,720)         170,612
                                                       -------        -------          -------

                                                   $ 1,893,723     $ (519,222)     $ 1,374,501
                                                      =========      ========        =========

         Year ending December 31, 1997:
            US federal                             $(3,842,852)    $  483,213      $(3,359,639)
            State and local                               9,092      (838,719)        (829,627)
                                                          -----      --------         ---------

                                                   $  (3,833,760)  $ (355,506)     $(4,189,266)
                                                      ===========    ========       ===========
</TABLE>

         Income  tax  expense   (benefit)   was   $3,800,000,   $1,374,501   and
         ($4,189,266)  for the years ending  December  31, 1995,  1996 and 1997,
         respectively, and differed from the amounts as computed by applying the
         US federal  income tax rate of 34% to pretax  income (loss) as a result
         of the following:
<TABLE>
<CAPTION>

                                                                     1995             1996            1997
                                                                     ----             ----            ----

<S>                                                            <C>              <C>           <C>           
         Computed "expected" US tax expense (benefit)          $ 3,353,651      $ 1,310,504   $  (3,849,285)
         Increase (reduction) in income taxes resulting from:
            State and local income taxes, net of federal
               income tax benefit                                  556,829          112,604        (547,555)
            Tax benefit from foreign sales corp.                  (116,382)         (66,271)           -
            Other, net                                               5,902           17,664         207,574
                                                                  --------        ---------       ----------

                                                               $ 3,800,000      $ 1,374,501   $  (4,189,266)
                                                                 =========        =========      ===========
</TABLE>

                                                                    (Continued)
<PAGE>



                                    ZOOM TELEPHONICS, INC.
                          Notes to Consolidated Financial Statements
<TABLE>
<CAPTION>

Total income tax expense (benefit) was allocated as follows:        1995                1996            1997
                                                                    ----                ----            ----


<S>                                                          <C>                 <C>            <C>          
Income (loss) from operations                                $ 3,800,000         $ 1,374,501    $ (4,189,266)
Stockholders' equity, for compensation expense
            for tax purposes in excess of amounts
            recognized for financial statement purposes         (337,093)         (1,611,201)        (75,567)
                                                                ---------         -----------      ----------


                                                              $ 3,462,907        $  (236,700)   $ (4,264,833)
                                                                =========           =========     ===========
</TABLE>

The tax effects of temporary  differences that give rise to significant portions
of the deferred tax assets and deferred tax liabilities at December 31, 1996 and
1997 are presented below:
<TABLE>
<CAPTION>

                                                                           1996          1997
                                                                           ----          ----
Deferred tax assets:
<S>                                                                  <C>          <C>         
            Allowance for bad debt                                   $   421,298  $    181,394
            Sales returns reserve                                        280,029       400,688
            Price protection reserve                                     160,281        -
            Other accounts receivable reserves                            43,896       122,964
            Uniform capitalization                                       236,007       135,414
            Inventory reserve                                            816,690       405,852
            Vacation accrual                                              81,073       102,940
            Warranty reserve                                               6,035        50,343
            Amortization of goodwill                                        -           82,935
            Legal accrual                                                   -           94,816
            Accrued royalties                                               -           87,390
            State net operating loss carry forward                          -          596,520
            Federal tax credits                                             -          117,515
            Other                                                         40,597        35,797
                                                                          ------        ------
                  Total current gross deferred tax assets              2,085,906     2,414,568
                                                                       ---------     ---------

                  Total gross deferred tax assets                    $ 2,085,906  $  2,414,568
                                                                       =========     =========

Deferred tax liability:
            Property, plant and equipment, principally due
            to differences indepreciation                                (53,223)      (26,379)

                  Net deferred tax assets                            $ 2,032,683  $  2,388,189
                                                                       =========     =========
</TABLE>

In assessing the  realizability of deferred tax assets,  the Company  considered
whether it is more likely than not that some  portion or all of the deferred tax
assets will be realized. Due to the fact that the Company has sufficient taxable
income in the federal  carryback  periods and anticipates  future taxable income
over periods in which the deductible  temporary  differences are available,  the
ultimate realizability of deferred tax assets for federal and state tax purposes
appears more likely than not.
                                                                     (Continued)


<PAGE>

                                   ZOOM TELEPHONICS, INC.
                          Notes to Consolidated Financial Statements


(10)   Significant Customers

       One customer  accounted for  approximately  19% of net sales for the year
         ending  December  31,  1995 and 15% of net  sales  for the year  ending
         December 31, 1996. One customer  accounted for 17% of net sales for the
         year ending  December 31, 1997.  At December  31, 1997,  two  customers
         comprised approximately 42% of net accounts receivable. At December 31,
         1996,  two  customers  comprised  approximately  40%  of  net  accounts
         receivable.

(11)   Financial Instruments

       The Company generates a portion of its revenues in international  markets
         and denominated in foreign currencies, which subjects its operations to
         exposure  to foreign  currency  fluctuations.  The  impact of  currency
         fluctuations can be positive or negative in any given period.

       Tominimize  the  adverse  impact of foreign  currency  fluctuations,  the
         Company  may  use  certain  financial  instruments,  primarily  forward
         exchange  contracts,  in its management of foreign  currency  exposure.
         These contracts require the Company to sell certain foreign  currencies
         for US dollars at  contractual  rates.  The  Company  does not hold any
         forward exchange contracts for trading purposes.

       Realized and unrealized  foreign exchange gains and losses are recognized
         in  operating  income  and  offset  foreign  gains  and  losses  on the
         underlying  exposures.  During the years  ending  December 31, 1996 and
         1997,  foreign  currency  gains  and  losses  were  not  material.  The
         Company's forward exchange  contracts are revalued at the balance sheet
         date  and the  carrying  amount  approximates  the  fair  value  of the
         instruments.    At   December   31,   1997,   the   Company's   foreign
         currency-denominated   net  assets  were not material.  Other than the 
         forward exchange contracts described above,  the Company has no other 
         involvement with derivative financial instruments.

(12)   Product Line Acquisition

       OnJune 24, 1996,  the Company  issued  102,641  shares of common stock to
         acquire certain assets, including inventory and property and equipment,
         associated  with a  product  line of Tribe  Computer  Works,  Inc.  The
         acquisition  was  recorded  using the  purchase  method of  accounting,
         whereby the net assets  acquired were recorded at their  estimated fair
         values  and the  excess  of cost  over  the fair  value  of the  assets
         acquired of $1,634,913 was allocated to goodwill and is being amortized
         over 10 years.

                                                                     (Continued)
<PAGE>

                                    ZOOM TELEPHONICS, INC.
                          Notes to Consolidated Financial Statements



(13)   Supplemental Disclosure of Cash Flow Information
<TABLE>
<CAPTION>

                                                             1995            1996        1997
                                                             ----            ----        ----
                                                     
                                                      

<S>                                                   <C>              <C>             <C>   
         Cash paid during year for interest           $    115,206     $   169,248     $    -
                                                           =======         =======     =======
        

         Cash paid during year for income taxes       $  3,516,000     $ 1,873,000     $ 3,650
                                                         =========       =========       =====
</TABLE>

       During the second  quarter of 1996,  the Company issued 102,641 shares of
         common stock to acquire certain assets of Tribe Computer  Works,  Inc.,
         including  inventory of $95,685 and property and equipment of $107,467.
         In addition,  the tax effect of the exercise of stock options  resulted
         in increases to common stock and an increase in refundable income taxes
         of $1,611,201.  These noncash  transactions have been excluded from the
         statement of cash flows.

(14)    Dependence on a Single Supplier

       The Company  produces  its products  using  components  or  subassemblies
         purchased from third-party  suppliers.  Certain of these components are
         available only from a single or limited sources.  In 1996 and 1997, the
         Company purchased substantially all of its modem chipsets from only one
         supplier.  An  interruption in the delivery of these  components  could
         have a material adverse effect on the Company's results of operations.

(15)    Geographic Information

       The  Company's  domestic  net sales and export  sales to Europe and other
         locations for 1995, 1996, and 1997 were comprised as follows:
<TABLE>
<CAPTION>

                        1995   % of Total          1996   % of Total           1997   % of Total
                        ----   ----------          ----   ----------           ----   ----------
                                                                                   

<S>               <C>              <C>      <C>               <C>       <C>              <C>
North America     $ 69,452,313     72%      $ 73,085,465      73%       $ 52,227,550     81%
Europe              14,605,000     15%        18,227,729      18%          6,447,846     10%
Other               12,940,000     13%         8,881,827       9%          5,803,061      9%
                   ----------      ---         ---------       --          ---------      --
Total             $ 96,997,313    100%      $100,195,021     100%       $ 64,478,457    100%
                    ==========    ====       ===========     ====         ==========    ====

</TABLE>


<PAGE>

                                  EXHIBIT INDEX

<TABLE>
<S>       <C>    <C>              
          3.1    Articles  of  Continuance,  filed as Exhibit  3.1 to the Annual
                 Report on Form 10-K for the fiscal year ended December 31, 1991
                 (the "1991 Form 10-K"). *

          3.2    By-Law No. 1 of Zoom  Telephonics,  Inc.,  filed as  Exhibit  3.2 to the 1991
                 Form 10-K. *

          3.3    By-Law No. 2 of Zoom  Telephonics,  Inc.,  filed as  Exhibit  3.3 to the 1991
                 Form 10-K. *

       **10.1    1991 Stock Option Plan, as amended, of Zoom Telephonics,  Inc.,
                 filed as Exhibit 10.1 to the Annual Report on Form 10-K for the
                 fiscal year ended December 31, 1994 (the "1994 Form 10-K"). *

       **10.2    1991  Director  Stock Option Plan,  as amended,  of Zoom  Telephonics,  Inc.,
                 filed as Exhibit 10.2 to the June 1996 Form 10-Q. *

         10.3    Letter  Agreement  Regarding  Revolving  Line of Credit by and  between  Zoom
                 Telephonics, Inc. and Fleet National Bank.

         10.4    Loan Modification  Agreement by and between Zoom Telephonics,  Inc. and Fleet
                 National Bank.

         10.5    Lease  between Zoom  Telephonics,  Inc. and "E" Street  Associates,  filed as
                 Exhibit 10.5 to the June 1996 Form 10-Q. *

         10.6    Form of  Indemnification  Agreement,  filed as Exhibit  10.6 to the June 1996
                 Form 10-Q. *

         10.7    Amended and Restated  Promissory  Note issued by the Company in
                 favor of Fleet National Bank.

         10.8    Security Agreement between the Company and Fleet National Bank.

       **10.9    Employment Agreement.

         11.     Statement re: computation of per share income (loss).

         21.     Subsidiaries,  filed as Exhibit 21 to the Annual  Report on Form 10-K for the
                 fiscal year ended December 31, 1996. *

         23.     Consent of KPMG Peat Marwick LLP.

         27.     Financial Data Schedule.

         27.1    Financial Data Schedule. 1996

         27.2    Financial Data Schedule. 1995

</TABLE>


*                In accordance  with Rule 12b-32 under the  Securities  Exchange
                 Act of 1934,  as amended,  reference  is made to the  documents
                 previously  filed with the Securities and Exchange  Commission,
                 which documents are hereby incorporated by reference.

**               Compensation Plan or Arrangement.




Exhibit 10.3. Letter Agreement Regarding Revolving Line of Credit by and between
              Zoom Telephonics, Inc. and Fleet National Bank


ZOOM TELEPHONICS, INC.
207 South Street
Boston, MA  02111


January 17, 1997


Fleet National Bank
75 State Street
Boston, MA  02109

Gentlemen:

        This letter agreement will set forth certain understandings between Zoom
Telephonics,  Inc., a Delaware  corporation  (the "Borrower") and Fleet National
Bank (the "Bank") with respect to Revolving  Loans  (hereinafter  defined) to be
made by the Bank to the Borrower and with respect to letters of credit which may
hereafter  be  issued  by  the  Bank  for  the  account  of  the  Borrower.   In
consideration of the mutual promises contained herein and in the other documents
referred to below,  and for other good and valuable  consideration,  receipt and
sufficiency of which are hereby acknowledged, the Borrower and the Bank agree as
follows:

I.  AMOUNTS AND TERMS

       1.1. The Borrowing;  Revolving Note.  Subject to the terms and conditions
hereinafter  set  forth,  the Bank will make  loans  ("Revolving  Loans") to the
Borrower, in such amounts as the Borrower may request, on any Business Day prior
to the  first  to  occur  of (i)  the  Expiration  Date,  or  (ii)  the  earlier
termination of the within-described revolving financing arrangements pursuant to
ss.5.2 or ss.6.6; provided,  however, that (1) the aggregate principal amount of
Revolving Loans outstanding shall at no time exceed the Maximum Revolving Amount
(hereinafter  defined)  and  (2) the  Aggregate  Bank  Liabilities  (hereinafter
defined)  shall at no time  exceed the  Borrowing  Base  (hereinafter  defined).
Without limitation of the foregoing,  no Revolving Loan will be made by the Bank
hereunder if, after giving effect to such  Revolving  Loan,  the Aggregate  Bank
Liabilities would exceed  $10,000,000.  Within the foregoing limits, and subject
to the terms and conditions  hereof,  the Borrower may obtain  Revolving  Loans,
repay Revolving Loans and obtain Revolving Loans again on one or more occasions.
The Revolving Loans shall be evidenced by that certain  $10,000,000  face amount
promissory  note  of even  date  herewith  (the  "Revolving  Note")  made by the
Borrower and payable to the order of the Bank. The Borrower  hereby  irrevocably
authorizes  the Bank to make or cause to be made, on a schedule  attached to the
Revolving  Note or on the books of the Bank,  at or following the time of making
each  Revolving  Loan and of receiving any payment of principal,  an appropriate
notation  reflecting such  transaction and the then aggregate  unpaid  principal
balance of the Revolving Loans. The amount so noted shall constitute presumptive
evidence as to the amount owed by the Borrower  with respect to principal of the
Revolving  Loans.  Failure  of the  Bank to make any such  notation  shall  not,
however,  affect  any  obligation  of the  Borrower  or any  right  of the  Bank
hereunder or under the Revolving Note.

       1.2. Interest Rate. Except as provided below in this ss.1.2,  interest on
the  Revolving  Loans  will be  payable  at a  fluctuating  rate per annum  (the
"Floating  Rate")  which  shall at all  times be equal to the  Prime  Rate as in
effect  from  time to time  (but in no  event  in  excess  of the  maximum  rate
permitted  by then  applicable  law),  with a change in such rate of interest to
become effective on each day when a change in the Prime Rate becomes  effective.
Subject to the  conditions  set forth  herein,  the  Borrower may elect that any
Revolving  Loan to be made  under  ss.1.1  will  be made as a LIBOR  Loan.  Such
election  shall  be  made  by the  Borrower  giving  to the  Bank a  written  or
telephonic notice received by the Bank within the time period and containing the
information  described in the next  following  sentence (a "Fixed Rate Borrowing
Notice").  The Fixed Rate Borrowing Notice must be received by the Bank no later
than 10:00 a.m.  (Boston  time) on that day which is two Business  Days prior to
the date of the proposed borrowing and must specify the amount of the LIBOR Loan
requested (which shall be $500,000 or an integral multiple thereof), whether the
Interest  Period is proposed to be one month,  two months,  three  months or six
months and the  proposed  commencement  date of the  relevant  Interest  Period.
Notwithstanding  anything  provided  elsewhere  in this  letter  agreement,  the
Borrower  may not select an  Interest  Period for any LIBOR Loan which would end
after the Expiration Date. Any Fixed Rate Borrowing  Notice shall,  upon receipt
by the Bank,  become  irrevocable and binding on the Borrower,  and the Borrower
shall,  upon  demand and receipt of a Bank  Certificate  with  respect  thereto,
forthwith  indemnify the Bank against any actual loss or expense incurred by the
Bank as a result of any failure by the Borrower to obtain (other than due to the
failure of the Bank to fund in  violation of the Bank's  obligations  under this
letter  agreement)  or maintain any  requested  LIBOR Loan,  including,  without
limitation,  any loss or  expense  incurred  by  reason  of the  liquidation  or
redeployment of deposits or other funds acquired by the Bank to fund or maintain
such  LIBOR  Loan.  Each  LIBOR  Loan  will be due and  payable  in full (if not
required to be repaid earlier pursuant to the terms of this letter agreement) on
the last day of the Interest Period applicable thereto.  The principal amount of
any such  LIBOR  Loan so repaid  may be  reborrowed  as a new LIBOR  Loan to the
extent and on the terms and  conditions  contained  in this letter  agreement by
delivery  to the Bank of a new Fixed Rate  Borrowing  Notice  conforming  to the
requirements  set forth  above in this  ss.1.2 (and any LIBOR Loan not so repaid
and not so reborrowed as a new LIBOR Loan will be deemed to have been reborrowed
as a Floating  Rate Loan).  Notwithstanding  any other  provision of this letter
agreement,  the Bank need not make any LIBOR Loan at any time when there  exists
any Event of  Default  (as  hereinafter  defined)  or any event or  circumstance
which, with the giving of notice or the passage of time or both, could become an
Event of Default.

       1.3. Repayment;  Renewal.  The Borrower shall repay in full all Revolving
Loans and all interest  thereon  upon the first to occur of: (i) the  Expiration
Date, or (ii) an acceleration under ss.5.2(a)  following an Event of Default. In
addition,  if at any time the Borrowing  Base is in an amount which is less than
the then  outstanding  Aggregate Bank  Liabilities,  the Borrower will forthwith
prepay  so much of the  Revolving  Loans  as may be  required  (or  arrange  for
termination  of such letters of credit as may be required) so that the Aggregate
Bank Liabilities will not exceed the Borrowing Base. The Borrower may prepay, at
any time, without penalty or premium,  the whole or any portion of any Revolving
Loan which is a Floating  Rate Loan.  The  Borrower  may prepay the whole or any
portion of any  Revolving  Loan  which is a LIBOR  Loan;  provided  that (i) the
Borrower  gives  the Bank not less than two (2)  Business  Days'  prior  written
notice of its intent so to prepay,  (ii) the  Borrower  pays all interest on the
LIBOR  Loan  (or  portion  thereof)  so  prepaid  accrued  to the  date  of such
prepayment,  (iii) any voluntary  prepayment  shall be in a principal  amount of
$1,000,000  or an integral  multiple  thereof and (iv) if the  Borrower  for any
reason  makes  any  prepayment  of a LIBOR  Loan  prior  to the  last day of the
Interest Period applicable thereto, the Borrower shall forthwith pay all amounts
owing to the Bank  pursuant to the  provisions  of ss.1.6  with  respect to such
LIBOR  Loan.  The  Bank  may,  at  its  sole  discretion,  renew  the  financing
arrangements described in this letter agreement by extending the Expiration Date
in a writing  signed  by the Bank and  accepted  by the  Borrower.  Neither  the
inclusion in this letter agreement or elsewhere of covenants relating to periods
of time after the  Expiration  Date,  nor any other  provision  hereof,  nor any
action  (except  a  written  extension  pursuant  to the  immediately  preceding
sentence),  non-action  or  course  of  dealing  on the part of the Bank will be
deemed an  extension  of, or  agreement  on the part of the Bank to extend,  the
Expiration Date.

       1.4. Interest  Payments.  The Borrower will pay interest on the principal
amount of the  Revolving  Loans  outstanding  from  time to time,  from the date
hereof until payment of the Revolving  Loans and the Revolving  Note in full and
the termination of this letter  agreement.  Interest on Floating Rate Loans will
be payable  monthly in arrears on the first day of each month.  Interest on each
LIBOR Loan will be paid in arrears on the  applicable  Interest  Payment Date or
Dates.  In any event,  interest shall also be paid on the date of payment of the
Revolving Loans in full. Interest on Floating Rate Loans shall be payable at the
Floating  Rate.  The rate of  interest  payable  on any  LIBOR  Loan will be the
Eurodollar Interest Rate applicable thereto. In any event,  overdue principal of
any Revolving Loan and, to the extent  permitted by law, overdue interest on any
Revolving  Loan shall bear interest at a rate per annum which at all times shall
be  equal  to the sum of (i) two  (2%)  percent  per  annum  plus  (ii) the rate
otherwise applicable to such overdue principal (or to the principal amount as to
which such interest is overdue) under the Revolving Note, payable on demand. All
interest payable hereunder and/or under the Revolving Note will be calculated on
the basis of a 360-day year for the actual number of days elapsed.

       1.5.    Rate Determination Protection.  In the event that:

               (i) the Bank shall  determine  that,  by reason of  circumstances
               affecting the London interbank market or otherwise,  adequate and
               reasonable  methods do not exist for  ascertaining the Eurodollar
               Interest  Rate which would  otherwise  be  applicable  during any
               Interest Period, or

               (ii) the Bank shall determine that:

                      (A) the making or  continuation of any LIBOR Loan has been
                      made  impracticable  or unlawful by (1) the  occurrence of
                      any contingency that materially and adversely  affects the
                      London  interbank  market or (2) compliance by the Bank in
                      good  faith  with  any  applicable  law  or   governmental
                      regulation, guideline or order or interpretation or change
                      thereof by any  governmental  authority  charged  with the
                      interpretation  or  administration  thereof  or  with  any
                      request or  directive of any such  governmental  authority
                      (whether or not having the force of law); or

               (B)    LIBOR will not,  in the  reasonable  determination  of the
                      Bank,  adequately  and fairly reflect the cost to the Bank
                      of funding the LIBOR Loans for such Interest Period

               then the Bank shall  forthwith give notice of such  determination
               (which shall be  conclusive  and binding on the  Borrower) to the
               Borrower. In such event the obligations of the Bank to make LIBOR
               Loans  shall be  suspended  until  the Bank  determines  that the
               circumstances  giving rise to such  suspension  no longer  exist,
               whereupon the Bank shall notify the Borrower.

       1.6.  Prepayment of LIBOR Loans. The following  provisions of this ss.1.6
shall be effective only with respect to LIBOR Loans:  If, due to acceleration of
the  Revolving  Note or due to voluntary  prepayment or due to any other reason,
the Bank receives  payment of any principal of a LIBOR Loan on any date prior to
the last day of the relevant  Interest Period,  the Borrower shall,  upon demand
and  receipt  of a Bank  Certificate  from the Bank with  respect  thereto,  pay
forthwith to the Bank all amounts  required to  compensate  the Bank for losses,
costs or expenses which it may have reasonably incurred and may reasonably incur
as a result of such payment, including,  without limitation, any loss or expense
incurred by reason of the  liquidation or  redeployment of funds acquired by the
Bank to fund or maintain such LIBOR Loan.  This provision  shall apply,  without
limitation, to any prepayment required under the second sentence of ss.1.3.

       1.7.    Increased Costs; Capital Adequacy.

               (i) If the adoption,  effectiveness  or phase-in,  after the date
               hereof, of any applicable law, rule or regulation,  or any change
               therein,  or any change in the  interpretation  or administration
               thereof by any governmental authority, central bank or comparable
               agency charged with the interpretation or administration thereof,
               or compliance by the Bank with any request or directive  (whether
               or not  having the force of law) of any such  authority,  central
               bank or comparable agency:

                      (A)  shall  subject  the Bank to any  Imposition  or other
                      charge with respect to any LIBOR Loan,  the Revolving Note
                      or the  Bank's  agreement  to make LIBOR  Loans,  or shall
                      change the basis of  taxation  of  payments to the Bank of
                      the  principal  of or  interest  on any LIBOR  Loan or any
                      other  amounts due under this letter  agreement in respect
                      of the LIBOR Loans or the Bank's  agreement  to make LIBOR
                      Loans  (except  for  changes  in  the  rate  of tax on the
                      over-all net income of the Bank); or

                      (B) shall impose,  modify or deem  applicable any reserve,
                      special deposit,  deposit insurance or similar requirement
                      (including,   without  limitation,  any  such  requirement
                      imposed by the Board of Governors  of the Federal  Reserve
                      System, but excluding, with respect to any LIBOR Loan, any
                      such  requirement   already  included  in  the  applicable
                      Reserve Rate) against assets of,  deposits with or for the
                      account  of,  or  credit  extended  by,  the Bank or shall
                      impose on the Bank or on the London  interbank  market any
                      other condition  affecting any LIBOR Loans,  the Revolving
                      Note or the Bank's agreement to make LIBOR Loans

               and the result of any of the foregoing is to increase the cost to
               the Bank of making or maintaining any LIBOR Loan or to reduce the
               amount of any sum received or  receivable  by the Bank under this
               letter  agreement or under the Revolving Note with respect to any
               LIBOR Loan by an amount deemed by the Bank to be material,  then,
               upon  demand by the Bank and receipt of a Bank  Certificate  from
               the Bank with respect thereto, the Borrower shall pay to the Bank
               such  additional  amount or amounts as the Bank  certifies  to be
               necessary  to  compensate  the Bank for  such  increased  cost or
               reduction in amount received or receivable.

               (ii) If the Bank  shall  have  determined  in good faith that the
               adoption,  effectiveness or phase-in after the date hereof of any
               applicable law, rule or regulation regarding capital requirements
               for banks or bank holding companies,  or any change therein after
               the date  hereof,  or any  change  after  the date  hereof in the
               interpretation  or  administration  thereof  by any  governmental
               authority,  central bank or  comparable  agency  charged with the
               interpretation  or administration  thereof,  or compliance by the
               Bank with any  request  or  directive  of such  entity  regarding
               capital adequacy  (whether or not having the force of law) has or
               would  have the  effect of  reducing  the  return  on the  Bank's
               capital with respect to its agreement hereunder to make Revolving
               Loans or with respect to any Revolving  Loan (whether or not then
               subject to any  Eurodollar  Interest  Rate) to a level below that
               which the Bank could have achieved (taking into consideration the
               Bank's  policies  with  respect to capital  adequacy  immediately
               before  such  adoption,   effectiveness,   phase-in,   change  or
               compliance  and assuming  that the Bank's  capital was then fully
               utilized)  by any  amount  deemed by the Bank in good faith to be
               material:  (A) the Bank shall promptly after its determination of
               such occurrence give notice thereof to the Borrower;  and (B) the
               Borrower  shall pay to the Bank as an additional fee from time to
               time on demand such amount as the Bank certifies to be the amount
               that will compensate it for such reduction. A Bank Certificate of
               the  Bank  claiming  compensation  under  this  ss.1.7  shall  be
               presumptively  conclusive in the absence of manifest error.  Such
               certificate  shall set forth the nature of the occurrence  giving
               rise to such compensation, the additional amount or amounts to be
               paid to the Bank  hereunder  and the method by which such amounts
               are determined.  In determining any such amount, the Bank may use
               any reasonable averaging and attribution methods.

               (iii) No failure  on the part of the Bank to demand  compensation
               on any one  occasion  shall  constitute  a waiver of its right to
               demand such  compensation on any other occasion and no failure on
               the part of the Bank to deliver any Bank  Certificate in a timely
               manner shall in any way reduce any  obligation of the Borrower to
               the Bank under this ss.1.7.

       1.8. Illegality or Impossibility.  Notwithstanding any other provision of
this  letter  agreement,  if  the  introduction  of or any  change  in or in the
interpretation or administration of any law or regulation applicable to the Bank
or the Bank's good faith activities in the London interbank market shall make it
unlawful,   or  any  central  bank  or  other   governmental   authority  having
jurisdiction  over the Bank or the Bank's  good faith  activities  in the London
interbank  market  shall  assert  that  it is  unlawful,  or  otherwise  make it
impossible,  for the Bank to perform  its  obligations  hereunder  to make LIBOR
Loans or to continue to fund or maintain LIBOR Loans, then on notice thereof and
demand therefor by the Bank in good faith to the Borrower, (i) the obligation of
the Bank to fund LIBOR Loans shall  terminate and (ii) the Borrower shall prepay
in full all affected LIBOR Loans on or prior to the last day on which such LIBOR
Loans may legally remain outstanding.

       1.9. Advances and Payments.  The proceeds of all Revolving Loans shall be
credited by the Bank to a general  deposit  account  maintained  by the Borrower
with the Bank.  The proceeds of each Revolving Loan will be used by the Borrower
solely for working capital purposes.

        The Bank may charge any general  deposit  account of the Borrower at the
Bank with the amount of all payments of interest,  principal and other sums due,
from time to time,  under this letter agreement and/or the Revolving Note and/or
with respect to any letter of credit; and will thereafter notify the Borrower of
the amount so  charged.  The  failure of the Bank so to charge any account or to
give any such  notice  shall not affect the  obligation  of the  Borrower to pay
interest, principal or other sums as provided herein or in the Revolving Note or
with respect to any letter of credit.

        Whenever  any  payment  to be made to the Bank  hereunder  or under  the
Revolving Note or with respect to any letter of credit shall be stated to be due
on a day  which is not a  Business  Day,  such  payment  may be made on the next
succeeding  Business  Day, and interest  payable on each such date shall include
the amount  thereof  which shall accrue  during the period of such  extension of
time. All payments by the Borrower  hereunder and/or in respect of the Revolving
Note  and/or  with  respect  to any  letter of  credit  shall be made net of any
Impositions   or  taxes  and  without   deduction,   set-off  or   counterclaim,
notwithstanding  any claim which the Borrower  may now or at any time  hereafter
have against the Bank.  All payments of  interest,  principal  and any other sum
payable  hereunder and/or under the Revolving Note shall be made to the Bank, in
immediately available funds, at its office at 75 State Street,  Boston, MA 02109
or to such other address as the Bank may from time to time direct.  All payments
received by the Bank after 2:00 p.m.  on any day shall be deemed  received as of
the next  succeeding  Business  Day.  All monies  received  by the Bank shall be
applied  first to fees,  charges,  costs and expenses  payable to the Bank under
this  letter  agreement,  the  Revolving  Note  and/or  any  of the  other  Loan
Documents,  next to interest then accrued on account of any  Revolving  Loans or
letter of credit  reimbursement  obligations and only thereafter to principal of
the Revolving Loans and letter of credit reimbursement obligations. All interest
and fees payable  hereunder  and/or under the Revolving Note shall be calculated
on the basis of a 360-day year for the actual number of days elapsed.

       1.10.  Letters of Credit. At the Borrower's  request,  the Bank may, from
time to time,  in its  discretion,  issue one or more  letters of credit for the
account of the  Borrower;  provided  that at the time of such issuance and after
giving effect thereto the Aggregate Bank Liabilities will in no event exceed the
lesser of (i)  $10,000,000 or (ii) the then effective  Borrowing  Base. Any such
letter of credit will be issued for such fee and upon such terms and  conditions
as may be agreed to by the Bank and the  Borrower at the time of  issuance.  The
Borrower hereby authorizes the Bank,  without further request from the Borrower,
to cause the Borrower's  liability to the Bank for  reimbursement of funds drawn
under any such  letter of credit to be repaid  from the  proceeds of a Revolving
Loan to be made hereunder.  The Borrower hereby  irrevocably  requests that such
Revolving Loans be made.

       1.11. Conditions to Advance. Prior to the making of the initial Revolving
Loan or the  issuance  of any letter of credit  hereunder,  the  Borrower  shall
deliver to the Bank duly executed copies of this letter agreement, the Revolving
Note and the  documents and other items listed on the Closing  Agenda  delivered
herewith by the Bank to the Borrower, all of which, as well as all legal matters
incident to the transactions  contemplated hereby, shall be satisfactory in form
and substance to the Bank and its counsel in good faith.

        Without  limiting the foregoing,  any Revolving Loan or letter of credit
issuance  (including the initial Revolving Loan or letter of credit issuance) is
subject  to the  further  conditions  precedent  that on the date on which  such
Revolving  Loan is made or such  letter of credit is issued  (and  after  giving
effect thereto):

        (a) All statements,  representations and warranties of the Borrower made
in this letter agreement  and/or in the Security  Agreement shall continue to be
correct in all material  respects as of the date of such  Revolving  Loan or the
date of issuance of such  letter of credit,  as the case may be,  other than any
such statements,  representations and warranties which by their terms refer only
to the date of this letter agreement.

        (b) All covenants and agreements of the Borrower contained herein and/or
in any of the other Loan Documents shall have been complied with in all material
respects on and as of the date of such Revolving Loan or the date of issuance of
such letter of credit, as the case may be.

        (c) No event which constitutes, or which with notice or lapse of time or
both  could  constitute,  an  Event  of  Default  shall  have  occurred  and  be
continuing.

        (d) No material  adverse  change  shall have  occurred in the  financial
condition of the Borrower from that disclosed in the financial  statements  then
most recently furnished to the Bank.

        Each request by the Borrower for any Revolving  Loan or for the issuance
of any letter of credit,  and each acceptance by the Borrower of the proceeds of
any  Revolving  Loan or  delivery  of a  letter  of  credit,  will be  deemed  a
representation  and warranty by the Borrower that at the date of such  Revolving
Loan or the date of issuance  of such letter of credit,  as the case may be, and
after giving  effect  thereto all of the  conditions  set forth in the foregoing
clauses (a)-(d) of this ss.1.11 will be satisfied.  Each request for a Revolving
Loan or  letter of credit  issuance  will be  accompanied  by a  borrowing  base
certificate on a form satisfactory to the Bank,  executed by the chief financial
officer of the Borrower,  unless such a certificate  shall have been  previously
furnished  setting forth the  Borrowing  Base as at a date not more than 30 days
prior to the date of the requested  borrowing or the requested  letter of credit
issuance, as the case may be.

II.  REPRESENTATIONS AND WARRANTIES

       2.1. Representations and Warranties. In order to induce the Bank to enter
into this letter  agreement and to make Revolving Loans  hereunder  and/or issue
letters of credit hereunder, the Borrower warrants and represents to the Bank as
follows:

        (a) The Borrower is a corporation  duly organized,  validly existing and
in good  standing  under the laws of Delaware.  The Borrower has full  corporate
power to own its  property  and conduct its  business  as now  conducted  and as
proposed to be conducted and to enter into and perform this letter agreement and
the other Loan  Documents.  The Borrower is duly qualified to do business and in
good standing in Massachusetts  and is also duly qualified to do business and in
good standing in each other  jurisdiction  where the failure so to qualify could
(singly  or in the  aggregate  with all other  such  failures)  have a  material
adverse  effect  on  the  financial  condition,  business  or  prospects  of the
Borrower,  all such  jurisdictions  being  listed on item 2.1(a) of the attached
Disclosure  Schedule.  At the date hereof,  the  Borrower  has no  Subsidiaries,
except as shown on said item 2.1(a) of the  attached  Disclosure  Schedule.  The
Borrower is not a member of any partnership or joint venture.  Each of FSC, Zoom
UK  and  Tribe  is a  wholly-owned  Subsidiary  of  the  Borrower  which  has no
Indebtedness  for  borrowed  money  (except to the  Borrower)  and  conducts  no
business other than acting as a distributor of the Borrower's products.

        (b) At the date of this letter agreement, all of the outstanding capital
stock of the Borrower is owned, of record and beneficially, by the Parent.

        (c) The  execution,  delivery  and  performance  by the Borrower of this
letter  agreement and each of the other Loan Documents have been duly authorized
by all necessary corporate and other action and do not and will not:

              (i)  violate any  provision  of, or require as a  prerequisite  to
        effectiveness any filing,  registration,  consent or approval under, any
        law,  rule,  regulation,  order,  writ,  judgment,  injunction,  decree,
        determination  or award presently in effect having  applicability to the
        Borrower;

              (ii)  violate  any  provision  of the  charter  or  by-laws of the
        Borrower,  or result in a breach of or  constitute  a default or require
        any waiver or consent under any indenture or loan or credit agreement or
        any other material agreement,  lease or instrument to which the Borrower
        is a party or by which  the  Borrower  or any of its  properties  may be
        bound or affected or require any other consent of any Person; or

              (iii)  result in, or require,  the creation or  imposition  of any
        lien, security interest or other encumbrance (other than in favor of the
        Bank),  upon or with  respect  to any of the  properties  now  owned  or
        hereafter acquired by the Borrower.

        (d) This letter agreement and each of the other Loan Documents delivered
herewith  has been duly  executed  and  delivered  by the Borrower and each is a
legal,  valid and binding  obligation of the Borrower,  enforceable  against the
Borrower in accordance with its respective terms.

        (e)  Except  as  described  on item  2.1(e) of the  attached  Disclosure
Schedule,  there  are no  actions,  suits  or  proceedings  pending  or,  to the
knowledge  of  the  Borrower,  threatened  by or  against  the  Borrower  or any
Subsidiary  (nor,  to the  knowledge  of the  Borrower,  is there any pending or
threatened  investigation of the Borrower or any Subsidiary) before any court or
governmental department,  commission,  board, bureau, agency or instrumentality,
domestic or  foreign,  which could  hinder or prevent  the  consummation  of the
transactions  contemplated  hereby or call into  question  the  validity of this
letter agreement or any of the other Loan Documents or any action taken or to be
taken in  connection  with the  transactions  contemplated  hereby or thereby or
which in any  single  case or in the  aggregate  is  reasonably  likely  to have
resulted in or is reasonably  expected to result in any material  adverse change
in the business, prospects,  condition, affairs or operations of the Borrower or
any Subsidiary.

        (f) The  Borrower  is not in  violation  of any term of its  charter  or
by-laws  as now in  effect.  Neither  the  Borrower  nor any  Subsidiary  of the
Borrower is in material  violation  of any term of any  mortgage,  indenture  or
judgment,  decree  or order,  or any  other  material  instrument,  contract  or
agreement to which it is a party or by which any of its property is bound.

        (g) The Borrower has filed (and has caused each of its  Subsidiaries  to
file) all federal,  foreign, state and local tax returns,  reports and estimates
required to be filed by the  Borrower  and/or by any such  Subsidiary.  All such
filed returns, reports and estimates are proper and accurate and the Borrower or
the relevant Subsidiary has paid all taxes, assessments,  impositions,  fees and
other governmental charges required to be paid in respect of the periods covered
by such returns,  reports or estimates.  No deficiencies for any tax, assessment
or governmental charge have been asserted or assessed, and the Borrower knows of
no material tax liability or basis therefor.

        (h) The Borrower is in compliance  (and each  Subsidiary of the Borrower
is in compliance)  with all  requirements of law,  federal,  foreign,  state and
local,  and all  requirements  of all  governmental  bodies or  agencies  having
jurisdiction over it, the conduct of its business, the use of its properties and
assets,  and all  premises  occupied by it,  failure to comply with any of which
could (singly or in the aggregate  with all other such failures) have a material
adverse effect upon the assets,  business,  financial  condition or prospects of
the  Borrower  or any such  Subsidiary.  Without  limiting  the  foregoing,  the
Borrower  has  all  the  material   franchises,   licenses,   leases,   permits,
certificates and  authorizations  needed for the conduct of its business and the
use of its properties and all premises  occupied by it, as now conducted,  owned
and used and as proposed to be conducted, owned and used.

        (i) The audited consolidated  financial statements of the Parent and the
Parent's  Subsidiaries  as at  December  31,  1995 and the  management-generated
statements of the Parent and the Parent's Subsidiaries as at September 30, 1996,
each  heretofore  delivered  to the Bank,  are  complete and accurate and fairly
present the financial  condition of the Parent and the Parent's  Subsidiaries as
at the respective dates thereof and for the periods covered thereby, except that
the  management-generated  statements  do not  have  footnotes  and  thus do not
present the  information  which would  normally be contained in the footnotes to
financial statements and subject to normal year-end adjustments, which shall not
be  material.  Neither the Parent nor any of the Parent's  Subsidiaries  has any
liability,  contingent  or otherwise,  not disclosed in the aforesaid  financial
statements  or in any notes thereto that could  materially  affect the financial
condition of the Parent and the Parent's Subsidiaries.  Since December 31, 1995,
there has been no material  adverse  development  in the business,  condition or
prospects  of the Parent and the Parent's  Subsidiaries,  and neither the Parent
nor any of the Parent's  Subsidiaries has entered into any material  transaction
other than in the ordinary course.

        (j) The principal place of business and chief  executive  offices of the
Borrower are located at 207 South Street, Boston, MA 02111.

        (k) To the best  knowledge of the  Borrower,  the Borrower owns or has a
valid right to use all of the material patents, copyrights, trademarks and trade
names now being used to  conduct  its  business.  To the best  knowledge  of the
Borrower,  the  conduct of the  Borrower's  business  as now  operated  does not
conflict with valid patents, copyrights,  trademarks or trade names of others in
any manner  that could  materially  adversely  affect the  business,  prospects,
assets or condition, financial or otherwise, of the Borrower.

        (l)  To the  best  knowledge  of the  Borrower,  none  of the  executive
officers or key  employees of the Borrower is subject to any  agreement in favor
of anyone  other than the Borrower  which  materially  limits or restricts  that
person's right to engage in the type of business activity  conducted or proposed
to be  conducted  by the  Borrower  or which  grants  to anyone  other  than the
Borrower  any  rights in any  inventions  or other  ideas  susceptible  to legal
protection developed or conceived by any such officer or key employee.

        (m) The Borrower is not a party to any  contract or agreement  which now
has or, as far as can be foreseen by the Borrower at the date hereof, may have a
material  adverse  effect on the  financial  condition,  business,  prospects or
properties of the Borrower.

III.  AFFIRMATIVE COVENANTS AND REPORTING REQUIREMENTS

        Without  limitation  of any other  covenants  and  agreements  contained
herein  or  elsewhere,  the  Borrower  agrees  that  so  long  as the  financing
arrangements  contemplated  hereby are in effect or any Revolving Loan or any of
the other  Obligations  shall be  outstanding  or any  letter  of credit  issued
hereunder shall be outstanding:

       3.1.  Legal  Existence;  Qualification;  Compliance.  The  Borrower  will
maintain  (and will cause each  Subsidiary  of the  Borrower  to  maintain)  its
corporate  existence and good standing in the jurisdiction of its incorporation.
The  Borrower  will  remain  qualified  to do business  and in good  standing in
Massachusetts  and the  Borrower  will  qualify to do  business  and will remain
qualified and in good  standing (and the Borrower will cause each  Subsidiary of
the Borrower to qualify and remain qualified and in good standing) in each other
jurisdiction  where the failure so to qualify  could (singly or in the aggregate
with all other such  failures)  have a material  adverse effect on the financial
condition,  business or prospects of the  Borrower or any such  Subsidiary.  The
Borrower will comply (and will cause each  Subsidiary of the Borrower to comply)
with its charter documents and by-laws.  The Borrower will comply with (and will
cause each Subsidiary of the Borrower to comply with) all applicable laws, rules
and  regulations  (including,  without  limitation,  ERISA and those relating to
environmental protection) other than (i) laws, rules or regulations the validity
or applicability of which the Borrower or such Subsidiary shall be contesting in
good faith by proceedings which serve as a matter of law to stay the enforcement
thereof and (ii) those laws,  rules and  regulations  the failure to comply with
any of which  could not  (singly or in the  aggregate)  have a material  adverse
effect on the financial condition,  business or prospects of the Borrower or any
such Subsidiary.

       3.2. Maintenance of Property;  Insurance.  The Borrower will maintain and
preserve  (and will  cause each  Subsidiary  of the  Borrower  to  maintain  and
preserve) all of its fixed assets used in its business in good working order and
condition,  making all necessary repairs thereto and replacements  thereof.  The
Borrower will maintain, with financially sound and reputable insurers, insurance
with respect to its property and business against such  liabilities,  casualties
and  contingencies  and of such types and in such amounts as shall be reasonably
satisfactory  to the Bank from time to time and in any event all such  insurance
as may from  time to time be  customary  for  companies  conducting  a  business
similar to that of the Borrower in similar locales.

       3.3.  Payment of Taxes and Charges.  The Borrower  will pay and discharge
(and will cause each Subsidiary of the Borrower to pay and discharge) all taxes,
assessments  and  governmental  charges  or levies  imposed  upon it or upon its
income or property, including, without limitation,  taxes, assessments,  charges
or  levies  relating  to  real  and  personal  property,   franchises,   income,
unemployment, old age benefits,  withholding, or sales or use, prior to the date
on which penalties would attach thereto,  and all lawful claims (whether for any
of the foregoing or otherwise) which, if unpaid,  might give rise to a lien upon
any property of the Borrower or any such Subsidiary, except any of the foregoing
which is being  contested  in good faith and by  appropriate  proceedings  which
serve as a matter  of law to stay the  enforcement  thereof  and for  which  the
Borrower has established and is maintaining adequate reserves. The Borrower will
pay, and will cause each of its  Subsidiaries  to pay, in a timely  manner,  all
material  lease  obligations,  material  trade  debt,  material  purchase  money
obligations and material equipment lease obligations.  The Borrower will perform
and fulfill all material  covenants and agreements  under any material leases of
real  estate,  material  agreements  relating to purchase  money debt,  material
equipment  leases and other  material  contracts.  The Borrower will maintain in
full force and effect, and comply with the terms and conditions of, all material
permits, permissions and licenses necessary or desirable for its business.

       3.4.   Accounts.  The Borrower  will maintain its  principal  depository
and operating accounts with the Bank.

       3.5.  Conduct of Business.  The Borrower  will  conduct,  in the ordinary
course,  the business in which it is presently  engaged.  The Borrower will not,
without  the  prior  written  consent  of  the  Bank  (such  consent  not  to be
unreasonably   withheld),   directly  or  indirectly   (itself  or  through  any
Subsidiary)  enter into any other  unrelated  lines of business,  businesses  or
ventures.

       3.6.   Reporting  Requirements.  The Borrower  will furnish to the Bank 
(or cause to be furnished to the Bank):

               (i)  Within  90 days  after  the end of each  fiscal  year of the
        Parent, a copy of the  consolidated  annual audit report for such fiscal
        year for the Parent and the  Parent's  Subsidiaries,  including  therein
        consolidated  and  consolidating  balance  sheets of the  Parent and the
        Parent's  Subsidiaries  as at the end of such  fiscal  year and  related
        consolidated  and  consolidating  statements  of  income,  stockholders'
        equity and cash flow for the fiscal year then ended. Said  consolidating
        statements will include  schedules  showing the financial results of the
        Borrower  separately,  certified  as  accurate by the  Borrower's  chief
        financial officer. The annual consolidated financial statements shall be
        certified by independent public  accountants  selected by the Parent and
        reasonably acceptable to the Bank, such certification to be in such form
        as is generally  recognized  as  "unqualified".  The Borrower  will also
        deliver to the Bank,  within 90 days after the end of each fiscal  year,
        projections  of sales,  income  and  expenses  of the  Borrower  for the
        succeeding  fiscal year,  prepared by the  Borrower's  management,  such
        projections  to be in such detail as is reasonably  satisfactory  to the
        Bank.

               (ii) Within 45 days after the end of each  fiscal  quarter of the
        Borrower,   a  copy  of  the  Parent  and  the   Parent's   Subsidiaries
        consolidated Quarterly Report on Form 10-Q, as filed with the Securities
        and Exchange Commission  ("SEC").  If, for any reason, the Parent is not
        required to file such Quarterly  Report on Form 10-Q with the SEC within
        45 days after the end of any fiscal  quarter,  then  within  such 45-day
        period after the end of such fiscal  quarter the  Borrower  will deliver
        (or cause to be delivered) to the Bank  consolidated  and  consolidating
        balance sheets of the Parent and the Parent's  Subsidiaries  and related
        consolidated  and  consolidating  statements  of income  and cash  flow,
        unaudited  but  complete  and  accurate  (except with regard to year-end
        FSC-related  adjustments)  and  prepared in  accordance  with  generally
        accepted accounting  principles  consistently  applied fairly presenting
        the financial  condition of the Parent and the Parent's  Subsidiaries as
        at the dates thereof and for the periods  covered  thereby  (except that
        such quarterly  statements need not contain  footnotes) and certified as
        accurate (except with regard to year-end FSC-related adjustments) by the
        chief financial  officer of the Parent,  such balance sheets to be as at
        the end of such fiscal  quarter and such  statements  of income and cash
        flow  to be for  such  fiscal  quarter  and for the  year to  date.  The
        above-described  Form 10-Q or other quarterly financial  statements will
        include or be accompanied by schedules  showing the financial results of
        the Borrower  separately,  certified as accurate by the Borrower's chief
        financial  officer.  In any event, the Borrower will also deliver to the
        Bank on a quarterly  basis,  within 45 days after the end of each fiscal
        quarter,  an accounts  receivable  aging report in such form and in such
        detail as is  reasonably  satisfactory  to the Bank,  which report shall
        include,  without  limitation,  detail as to foreign  Receivables  and a
        summary list of the Borrower's top ten customers.

               (iii) At the time of delivery of each annual or quarterly  report
        or financial statement of the Parent and the Parent's Subsidiaries or of
        the Borrower,  a certificate  executed by the chief financial officer of
        the Borrower  stating that he or she has reviewed this letter  agreement
        and the other Loan  Documents and has no knowledge of any default by the
        Borrower in the  performance  or observance of any of the  provisions of
        this letter agreement or of any of the other Loan Documents or, if he or
        she has such  knowledge,  specifying  each such  default  and the nature
        thereof.  Each  financial  statement  given as at the end of any  fiscal
        quarter of the Borrower will also set forth the  calculations  necessary
        to evidence compliance with ss.ss.3.7-3.10.

               (iv) Monthly,  within 20 days after the end of each month, (A) an
        aging report in form  satisfactory  to the Bank covering all Receivables
        of the  Borrower  outstanding  as at the  end of such  month,  and (B) a
        certificate of the chief financial officer of the Borrower setting forth
        the Borrowing Base as at the end of such month,  all in form  reasonably
        satisfactory to the Bank.

               (v)  Promptly  after  receipt,  a copy of all  audits or  reports
        submitted  to the Parent  and/or  any of the  Parent's  Subsidiaries  by
        independent public accountants in connection with any annual, special or
        interim  audits of the books of the Parent  and/or  any of the  Parent's
        Subsidiaries and any letter of comments  directed by such accountants to
        the management of the Parent and/or any of the Parent's Subsidiaries.

               (vi) As soon as possible  and in any event within five days after
        the  occurrence  of any Event of  Default or any event  which,  with the
        giving of notice or passage of time or both,  would  constitute an Event
        of Default,  the statement of the Borrower setting forth details of each
        such  Event of  Default  or event  and the  action  which  the  Borrower
        proposes  to take with  respect  thereto,  provided,  however,  that the
        Borrower need not furnish such  statements with respect to the covenants
        contained in any of Sections  3.7, 3.8, 3.9 and/or 3.10 as to any fiscal
        period  until the  earlier of (i) the closing of the  Borrower's  fiscal
        books for the  relevant  fiscal  period or (ii) 20 days after the end of
        the relevant fiscal period.

               (vii)  Promptly  after the  commencement  thereof,  notice of all
        actions,   suits  and  proceedings  before  any  court  or  governmental
        department,   commission,  board,  bureau,  agency  or  instrumentality,
        domestic or foreign,  to which the  Borrower  or any  Subsidiary  of the
        Borrower is a party.

               (viii)  As  long  as  the  Parent  and/or  any  of  the  Parent's
        Subsidiaries  has a class of securities which is publicly traded, a copy
        of each  periodic  or  current  report of the  Parent  and/or any of the
        Parent's  Subsidiaries  filed with the SEC or any  successor  agency and
        each annual report,  proxy statement and other communication sent by the
        Parent and/or any of the Parent's  Subsidiaries to shareholders or other
        securityholders generally, such copy to be provided to the Bank promptly
        upon such filing with the SEC or such communication with shareholders or
        securityholders, as the case may be.

               (ix) Promptly after the Borrower has knowledge  thereof,  written
        notice  of any  development  or  circumstance  which may  reasonably  be
        expected  to have a  material  adverse  effect  on the  Borrower  or its
        business,  properties,  assets, Subsidiaries or condition,  financial or
        otherwise.

               (x) Promptly upon request, such other information  respecting the
        financial condition,  operations,  Receivables,  inventory, machinery or
        equipment of the Borrower or any Subsidiary as the Bank may from time to
        time reasonably request.

       3.7.  Debt to Worth.  The  Borrower  will  maintain as at the end of each
fiscal  quarter  (commencing  with its results as at  September  30,  1996) on a
consolidated  basis a Leverage  Ratio of not more than 1.0 to 1. As used herein,
"Leverage Ratio" means, as at any date when same is to be determined,  the ratio
of  (x)  the  total  consolidated   Senior  Debt  of  the  Borrower  and/or  its
Subsidiaries then outstanding to (y) the then  consolidated  Capital Base of the
Borrower and its Subsidiaries.

       3.8.  Capital  Base.  The  Borrower  will  maintain as at the end of each
fiscal  quarter  (commencing  with  its  results  as at  September  30,  1996) a
consolidated  Capital  Base of not less  than the  then-effective  Capital  Base
Requirement.  As used herein,  the "Capital Base  Requirement" will be deemed to
have been  $40,000,000  for June 30, 1996; and as at the last day of each fiscal
quarter thereafter  (commencing with September 30, 1996) (each, a "Determination
Date"), the Capital Base Requirement will be deemed to become an amount equal to
the sum of: (i) that  Capital Base  Requirement  which was in effect at the last
day  of  the  immediately  preceding  fiscal  quarter,  plus  (ii)  50%  of  the
consolidated  Net  Income of the  Borrower  and  Subsidiaries  during the fiscal
quarter ending at such  Determination Date (but without giving effect to any Net
Income which is less than zero for any fiscal quarter).

        3.9. Profitability. The Borrower will not incur a consolidated quarterly
Net  Loss of  $2,500,000  or more in any  fiscal  quarter  (commencing  with its
results for the fiscal  quarter  ended  September  30,  1996).  Further,  if the
Borrower  incurs  any  consolidated  quarterly  Net Loss in any  fiscal  quarter
(commencing  with its results for the fiscal quarter ending September 30, 1996),
then the Borrower will achieve a  consolidated  quarterly Net Income of at least
$1.00 for the immediately following fiscal quarter.

        3.10. Liquidity. The Borrower will maintain as at the end of each fiscal
quarter of Borrower  (commencing  with its results as at  September  30, 1996) a
ratio of Net Quick Assets to Current Liabilities,  which ratio shall be not less
than 1.5 to 1.

        3.11. Books and Records.  The Borrower will maintain (and will cause the
Parent and the Parent's Subsidiaries and each of the Borrower's  Subsidiaries to
maintain)  complete and accurate  books,  records and accounts which will at all
times  accurately and fairly reflect all of its  transactions in accordance with
generally accepted  accounting  principles  consistently  applied.  The Borrower
will, at any reasonable  time and from time to time upon  reasonable  notice and
during  normal  business  hours (and at any time and without any  necessity  for
notice  following the  occurrence of an Event of Default),  permit the Bank, and
any agents or  representatives  thereof,  to examine and make copies of and take
abstracts  from the records and books of account of, and visit the properties of
the Borrower and any of its Subsidiaries,  and to discuss its affairs,  finances
and accounts with its officers, directors and/or independent accountants, all of
whom are hereby  authorized  and directed to cooperate with the Bank in carrying
out the  intent  of this  ss.3.11.  Each  financial  statement  of the  Borrower
hereafter  delivered  pursuant to this  letter  agreement  will be complete  and
accurate and will fairly  present the financial  condition of the Borrower as at
the date  thereof and for the periods  covered  thereby,  subject (as to interim
financial statements) to normal year-end audit adjustments.

IV.  NEGATIVE COVENANTS

        Without  limitation  of any other  covenants  and  agreements  contained
herein  or  elsewhere,  the  Borrower  agrees  that  so  long  as the  financing
arrangements  contemplated  hereby are in effect or any Revolving Loan or any of
the other  Obligations  shall be  outstanding  or any  letter  of credit  issued
hereunder shall be outstanding:

        4.1. Indebtedness. The Borrower will not create, incur, assume or suffer
to exist any Indebtedness  (nor allow any of its Subsidiaries to create,  incur,
assume or suffer to exist any Indebtedness), except for:

           (i)  Indebtedness  owed  to the  Bank  (or its  assigns),  including,
        without limitation,  the Indebtedness  represented by the Revolving Note
        and any Indebtedness in respect of letters of credit issued by the Bank;

           (ii) Subject always to the satisfaction of the requirements of clause
        (vi) of ss.4.6 below,  (A)  Indebtedness of Subsidiaries of the Borrower
        owed to the  Borrower,  (B)  Indebtedness  of the  Borrower  owed to any
        Subsidiary of the Borrower and (C) Indebtedness of any Subsidiary of the
        Borrower owed to any other Subsidiary of the Borrower;

           (iii)  Indebtedness  of the  Borrower  or any  Subsidiary  for taxes,
        assessments and governmental charges or levies not yet due and payable;

           (iv) Indebtedness  under or in respect of currency exchange contracts
        or interest rate protection  obligations incurred in the ordinary course
        of business;  provided that the aggregate of the notional amounts of all
        such contracts and obligations will not exceed $1,000,000;

           (v) Indebtedness in connection with  performance  bonds or letters of
        credit obtained and issued in the ordinary course of business; including
        letters  of credit  related  to  insurance  associated  with  claims for
        work-related injuries;

           (vi) Subordinated  Debt;  provided that the Bank has consented to the
        economic  terms,  amount  and  subordination   provisions  of  all  such
        Subordinated Debt;

           (vii) unsecured current liabilities of the Borrower or any Subsidiary
        (other than for money borrowed or for purchase money  Indebtedness  with
        respect to fixed assets)  incurred upon customary  terms in the ordinary
        course of business;

           (viii) purchase money Indebtedness  (including,  without  limitation,
        Indebtedness  in  respect  of  capitalized  equipment  leases)  owed  to
        equipment  vendors and/or  lessors for equipment  purchased or leased by
        the Borrower for use in the Borrower's business, provided that the total
        of    Indebtedness    permitted    under   this   clause   (viii)   plus
        presently-existing  equipment  financing  permitted under clause (ix) of
        this ss.4.1 will not exceed  $2,000,000 in the aggregate  outstanding at
        any one time;

           (ix) other  Indebtedness (not described in any of clauses  (i)-(viii)
        above) existing at the date hereof,  but only to the extent set forth on
        item 4.1 of the attached Disclosure Schedule; and

           (x)  any  guaranties  or  other  contingent   liabilities   expressly
        permitted pursuant to ss.4.3.

       4.2.  Liens.  The Borrower  will not create,  incur,  assume or suffer to
exist (nor allow any of its Subsidiaries to create,  incur,  assume or suffer to
exist) any mortgage,  deed of trust, pledge,  lien, security interest,  or other
charge  or  encumbrance  (including  the lien or  retained  security  title of a
conditional vendor) of any nature (collectively,  "Liens"), upon or with respect
to any of its property or assets, now owned or hereafter  acquired,  except that
the foregoing restrictions shall not apply to:

           (i) Liens for taxes, assessments or governmental charges or levies on
        property of the  Borrower or any of its  Subsidiaries  if the same shall
        not at the time be delinquent or thereafter can be paid without interest
        or  penalty  or are being  contested  in good  faith and by  appropriate
        proceedings  which  serve  as a matter  of law to stay  any  enforcement
        thereof and as to which adequate reserves are maintained;

           (ii) Liens  imposed by law,  such as  carriers',  warehousemen's  and
        mechanics'  liens and other similar Liens arising in the ordinary course
        of business  for sums not yet due or which are being  contested  in good
        faith and by appropriate  proceedings  which serve as a matter of law to
        stay the  enforcement  thereof  and as to which  adequate  reserves  are
        maintained;

           (iii)  pledges  or  deposits  under  workmen's   compensation   laws,
        unemployment insurance, social security,  retirement benefits or similar
        legislation;

           (iv)     Liens in favor of the Bank;

           (v)  Liens in favor of  equipment  vendors  and/or  lessors  securing
        purchase money  Indebtedness to the extent permitted by clause (viii) of
        ss.4.1;  provided  that no such Lien will extend to any  property of the
        Borrower other than the specific items of equipment financed; or

           (vi) other Liens existing at the date hereof,  but only to the extent
        and with the relative  priorities  set forth on item 4.2 of the attached
        Disclosure Schedule.

        Without  limitation of the foregoing,  the Borrower covenants and agrees
that it will not enter into (and  represents  and warrants  that it is not now a
party to or subject to) any  agreement  or  understanding  with any Person other
than the Bank which  could  prohibit  or restrict in any manner the right of the
Borrower to grant Liens on its assets to the Bank.

       4.3. Guaranties. The Borrower will not, without the prior written consent
of the  Bank,  assume,  guarantee,  endorse  or  otherwise  become  directly  or
contingently liable (including,  without limitation, liable by way of agreement,
contingent or otherwise,  to purchase,  to provide funds for payment,  to supply
funds to or  otherwise  invest in any debtor or otherwise to assure any creditor
against  loss)  (and  will not  permit  any of its  Subsidiaries  so to  assume,
guaranty  or become  directly or  contingently  liable) in  connection  with any
indebtedness  of any other  Person,  except (i)  guaranties by  endorsement  for
deposit or collection in the ordinary course of business, (ii) guaranties in the
ordinary course  connected with the sale of the products or services,  and (iii)
guaranties existing at the date hereof and described on item 4.3 of the attached
Disclosure Schedule.

       4.4. Dividends.  The Borrower will not, without the prior written consent
of the Bank,  make any  distributions  to its  shareholders,  pay any  dividends
(other  than  dividends  payable  solely in capital  stock of the  Borrower)  or
redeem, purchase or otherwise acquire, directly or indirectly any of its capital
stock.

       4.5. Loans and Advances.  The Borrower will not make (and will not permit
any Subsidiary to make) any loans or advances to any Person, including,  without
limitation, the Borrower's directors, officers and employees, except advances to
such directors,  officers or employees with respect to expenses incurred by them
in the ordinary course of their duties and advances against salary, all of which
loans and advances will not exceed,  in the aggregate,  $500,000  outstanding at
any one time.

       4.6. Investments. The Borrower will not, without the Bank's prior written
consent (which consent shall not be unreasonably  withheld),  invest in, hold or
purchase any stock or securities of any Person (nor will the Borrower permit any
of its Subsidiaries to invest in, purchase or hold any such stock or securities)
except: (i) readily marketable direct obligations of, or obligations  guarantied
by, the United States of America or any agency  thereof;  (ii) other  investment
grade debt  securities;  (iii) mutual  funds,  the assets of which are primarily
invested in items of the kind described in the foregoing clauses (i) and (ii) of
this ss.4.6;  (iv) deposits with or  certificates  of deposit issued by the Bank
and any other obligations of the Bank or the Bank's parent;  (v) deposits in any
other  bank  organized  in  the  United  States  having  capital  in  excess  of
$100,000,000; and (vi) investments in any Subsidiaries now existing or hereafter
created by the Borrower pursuant to ss.4.7 below; provided that in any event the
Tangible  Net  Worth of the  Borrower  alone  (exclusive  of its  investment  in
Subsidiaries  and any debt owed by any  Subsidiary to the Borrower)  will not be
less  than  90% of the  consolidated  Tangible  Net  Worth of the  Borrower  and
Subsidiaries.

       4.7. Subsidiaries; Acquisitions. The Borrower will not, without the prior
written  consent of the Bank,  form or acquire any  Subsidiary or make any other
acquisition of the stock of any other Person or of all or  substantially  all of
the assets of any other Person.
The Borrower will not become a partner in any partnership.

       4.8. Merger.  The Borrower will not, without the prior written consent of
the Bank,  merge or consolidate  with any Person,  or sell,  lease,  transfer or
otherwise  dispose of any material portion of its assets (whether in one or more
transactions), other than sale of inventory in the ordinary course.

       4.9. Affiliate Transactions. The Borrower will not, without prior written
consent of the Bank, enter into any transaction,  including, without limitation,
the purchase,  sale or exchange of any property or the rendering of any service,
with any  affiliate  of the  Borrower,  except  in the  ordinary  course  of and
pursuant to the reasonable requirements of the Borrower's business and upon fair
and reasonable terms no less favorable to the Borrower than would be obtained in
a comparable arms'-length transaction with any Person not an affiliate; provided
that nothing in this ss.4.9 shall be deemed to restrict the payment of salary or
other  similar  payments  to any officer or  director  of the  Borrower,  nor to
restrict  the hiring of  additional  officers.  For the  purposes of this letter
agreement,  "affiliate" means any Person which, directly or indirectly, controls
or is controlled by or is under common control with the Borrower; any officer or
director or former  officer or director of the  Borrower;  any Person  owning of
record  or  beneficially,  directly  or  indirectly,  5% or more of any class of
capital  stock of the  Borrower  or 5% or more of any class of capital  stock or
other equity interest having voting power (under ordinary  circumstances) of any
of the other Persons  described above; and any member of the immediate family of
any of the foregoing. "Control" means possession, directly or indirectly, of the
power to direct or cause the  direction  of the  management  or  policies of any
Person, whether through ownership of voting equity, by contract or otherwise.

        4.10. Change of Address, etc. The Borrower will not change its corporate
name,  nor will the  Borrower  change its chief  executive  offices or principal
place of business  from the address  described  in ss.2.1(j)  above,  unless the
Borrower  gives  prompt  written  notice  to the Bank of each such  change.  The
Borrower  will not  change its fiscal  year or  methods of  financial  reporting
unless,  in each  instance,  prior written notice of such change is given to the
Bank and prior to such change the Borrower enters into amendments to this letter
agreement in form and substance reasonably  satisfactory to the Bank in order to
preserve  unimpaired the rights of the Bank and the  obligations of the Borrower
hereunder.

        4.11.  Hazardous Waste.  Except as provided below, the Borrower will not
dispose  of or suffer or permit to exist any  hazardous  material  or oil on any
site or vessel owned,  occupied or operated by the Borrower or any Subsidiary of
the Borrower,  nor shall the Borrower  store (or permit any Subsidiary to store)
on any site or vessel  owned,  occupied or operated by the  Borrower or any such
Subsidiary,  or transport or arrange the transport of, any hazardous material or
oil (the terms "hazardous material",  "oil", "site" and "vessel",  respectively,
being used herein with the meanings  given those terms in Mass.  Gen.  Laws, Ch.
21E or any  comparable  terms in any  comparable  statute in effect in any other
relevant jurisdiction).  The Borrower shall provide the Bank with written notice
of (i) the intended storage or transport of any hazardous material or oil by the
Borrower or any  Subsidiary  of the  Borrower,  (ii) any known  release or known
threat of release of any hazardous material or oil at or from any site or vessel
owned,  occupied or operated by the Borrower or any  Subsidiary of the Borrower,
and  (iii)  any  incurrence  of  any  expense  or  loss  by  any  government  or
governmental authority in connection with the assessment, containment or removal
of any  hazardous  material or oil for which expense or loss the Borrower or any
Subsidiary of the Borrower may be liable.  Notwithstanding  the  foregoing,  the
Borrower and its Subsidiaries may use, store and transport,  and need not notify
the  Bank of the  use,  storage  or  transportation  of,  (x) oil in  reasonable
quantities,  as fuel for heating of their respective  facilities or for vehicles
or machinery used in the ordinary course of their respective  businesses and (y)
hazardous  materials that are solvents,  cleaning agents or other materials used
in the ordinary course of the respective business operations of the Borrower and
its Subsidiaries,  in reasonable quantities, as long as in any case the Borrower
or the  Subsidiary  concerned (as the case may be) has obtained and maintains in
effect any necessary governmental permits, licenses and approvals, complies with
all  requirements  of applicable  federal,  state and local law relating to such
use,  storage or  transportation,  follows the protective and safety  procedures
that a prudent  businessperson  conducting  a business the same as or similar to
that of the Borrower or such  Subsidiary (as the case may be) would follow,  and
disposes of such  materials  (not consumed in the ordinary  course) only through
licensed providers of hazardous waste removal services.

        4.12. No Margin Stock.  No proceeds of any Revolving  Loan shall be used
directly or indirectly to purchase or carry any margin security.

        4.13.  Subordinated  Debt.  The Borrower will not directly or indirectly
make any optional or voluntary  prepayment or purchase of  Subordinated  Debt or
modify,  alter or add any  provisions  with  respect to payment of  Subordinated
Debt.  In any event,  the Borrower will not make any payment of any principal of
or interest on any Subordinated  Debt at any time when there exists, or if there
would result therefrom, any Event of Default hereunder.

V.  DEFAULT AND REMEDIES

       5.1. Events of Default. The occurrence of any one of the following events
shall constitute an Event of Default hereunder:

        (a) The  Borrower  shall  fail to make any  payment of  principal  of or
interest on the  Revolving  Note on or before the date when due; or the Borrower
shall fail to pay when due any amount  owed to the Bank in respect of any letter
of credit now or hereafter issued by the Bank; or

        (b) Any  representation  or warranty of the  Borrower  contained  herein
shall at any time prove to have been incorrect in any material respect when made
or any  representation  or warranty made by the Borrower in connection  with any
Revolving  Loan or  letter  of  credit  shall  at any time  prove  to have  been
incorrect in any material respect when made; or

        (c) The Borrower  shall default in the  performance or observance of any
agreement or obligation under any of ss.ss.3.6, 3.7, 3.8, 3.9 or 3.10 or Article
IV; or

        (d) The Borrower  shall default in the  performance or observance of any
agreement or  obligation  under either  ss.3.1 or ss.3.3 and such default  shall
continue  unremedied  for 30 days  after the  Borrower  knows of, or  reasonably
should have known of, the facts or circumstances constituting such default; or

        (e) The Borrower  shall  default in the  performance  of any other term,
covenant or agreement  contained in this letter agreement and such default shall
continue  unremedied  for 30 days after notice  thereof shall have been given to
the Borrower; or

        (f) Any  default on the part of the  Borrower or any  Subsidiary  of the
Borrower shall exist, and shall remain unwaived or uncured beyond the expiration
of any  applicable  notice  and/or  grace  period,  under  any  other  contract,
agreement or undertaking now existing or hereafter  entered into with or for the
benefit of the Bank (or any affiliate of the Bank); or

        (g) Any default shall exist and remain  unwaived or uncured with respect
to any  Subordinated  Debt of the  Borrower  or with  respect to any  instrument
evidencing, guaranteeing or otherwise relating to any such Subordinated Debt, or
any such  Subordinated  Debt  shall not have been  paid  when  due,  whether  by
acceleration  or  otherwise,  or shall have been  declared to be due and payable
prior to its stated  maturity,  or any event or  circumstance  shall occur which
permits, or with the lapse of time or the giving of notice or both would permit,
the  acceleration  of the  maturity  of any  Subordinated  Debt by the holder or
holders thereof; or

        (h) Any default shall exist and remain  unwaived or uncured with respect
to any other  Indebtedness  for borrowed money of the Borrower or any Subsidiary
of the  Borrower  in excess of $500,000 in  aggregate  principal  amount or with
respect  to any  instrument  evidencing,  guaranteeing,  securing  or  otherwise
relating to any such  Indebtedness for borrowed money, or any such  Indebtedness
in excess of $500,000 in  aggregate  principal  amount  shall not have been paid
when due,  whether by acceleration or otherwise,  or shall have been declared to
be due and payable prior to its stated  maturity,  or any event or  circumstance
shall occur which permits,  or with the lapse of time or the giving of notice or
both would permit,  the acceleration of the maturity of any such Indebtedness by
the holder of holders thereof; or

        (i) The Borrower  shall be dissolved,  or the Borrower or any Subsidiary
of the  Borrower  shall  become  insolvent or bankrupt or shall cease paying its
debts as they mature or shall make an  assignment  for the benefit of creditors,
or a trustee,  receiver or liquidator shall be appointed for the Borrower or any
Subsidiary  of the  Borrower or for a  substantial  part of the  property of the
Borrower or any such  Subsidiary,  or bankruptcy,  reorganization,  arrangement,
insolvency or similar proceedings shall be instituted by or against the Borrower
or any  such  Subsidiary  under  the  laws of any  jurisdiction  (except  for an
involuntary  proceeding  filed  against the  Borrower or any  Subsidiary  of the
Borrower which is dismissed  within 60 days following the institution  thereof);
or

        (j) Any  attachment,  execution  or similar  process  shall be issued or
levied  against  any  material  item  of the  property  of the  Borrower  or any
Subsidiary and such attachment,  execution or similar process shall not be paid,
stayed,  released,  vacated  or fully  bonded  within 10 days after its issue or
levy; or

        (k) Any final uninsured  judgment in excess of $500,000 shall be entered
against the Borrower or any Subsidiary of the Borrower by any court of competent
jurisdiction  and shall  remain  unpaid and unstayed for more than 30 days after
the date of such entry; or

        (l) The Borrower or any  Subsidiary  of the Borrower  shall fail to meet
its  minimum  funding  requirements  under  ERISA with  respect to any  employee
benefit plan (or other class of benefit which the PBGC has elected to insure) or
any such plan shall be the subject of termination proceedings (whether voluntary
or  involuntary)  and there shall  result from such  termination  proceedings  a
liability of the Borrower or any  Subsidiary  of the Borrower to the PBGC which,
in each case, in the reasonable  opinion of the Bank may have a material adverse
effect upon the financial condition of the Borrower or any such Subsidiary; or

        (m) At any time, the Borrower shall not be a wholly-owned subsidiary  of
the Parent; or

        (n) There shall occur any other material adverse change in the condition
(financial  or  otherwise),   operations,  properties,  assets,  liabilities  or
earnings of the Borrower.

       5.2. Rights and Remedies on Default.  Upon the occurrence of any Event of
Default,  in addition to any other  rights and  remedies  available  to the Bank
hereunder or  otherwise,  the Bank may exercise any one or more of the following
rights and remedies (all of which shall be cumulative):

        (a) Declare the entire unpaid  principal  amount of the  Revolving  Note
then outstanding,  all interest accrued and unpaid thereon and all other amounts
payable under this letter agreement,  and all other Indebtedness of the Borrower
to the Bank,  to be forthwith  due and payable,  whereupon the same shall become
forthwith due and payable, without presentment, demand, protest or notice of any
kind, all of which are hereby expressly waived by the Borrower.

        (b) Terminate the revolving financing  arrangements provided for by this
letter agreement.

        (c) Exercise all rights and remedies hereunder, under the Revolving Note
and under each and any other  agreement  with the Bank;  and  exercise all other
rights and remedies which the Bank may have under applicable law.

       5.3.  Set-off.  In addition to any rights now or hereafter  granted under
applicable  law  and not by way of  limitation  of any  such  rights,  upon  the
occurrence of any Event of Default, the Bank is hereby authorized at any time or
from time to time, without presentment,  demand,  protest or other notice of any
kind to the Borrower or to any other Person,  all of which are hereby  expressly
waived,  to set off and to  appropriate  and apply any and all  deposits and any
other  Indebtedness  at any time  held or  owing  by the  Bank or any  affiliate
thereof  to or for the  credit or the  account of the  Borrower  against  and on
account of the  obligations  and  liabilities  of the Borrower to the Bank under
this letter  agreement  or  otherwise,  irrespective  of whether or not the Bank
shall have made any demand hereunder and although said obligations,  liabilities
or claims,  or any of them,  may then be  contingent  or  unmatured  and without
regard for the availability or adequacy of other collateral. As security for the
Obligations, the Borrower grants to the Bank a security interest with respect to
all its deposits and all  securities or other  property in the possession of the
Bank or any affiliate of the Bank from time to time, and, upon the occurrence of
any Event of Default, the Bank may exercise all rights and remedies of a secured
party under the Uniform Commercial Code.

       5.4. Letters of Credit.  Without  limitation of any other right or remedy
of the Bank,  (i) if an Event of Default  shall have occurred and the Bank shall
have accelerated the Revolving Loans or (ii) if this letter agreement and/or the
revolving  financing  arrangements  described herein shall have expired or shall
have been earlier  terminated by either the Bank or the Borrower for any reason,
the  Borrower  will  forthwith  deposit with the Bank in cash a sum equal to the
total of all then undrawn amounts of all outstanding letters of credit issued by
the Bank for the account of the Borrower.

VI.  MISCELLANEOUS

       6.1.  Costs and  Expenses.  The  Borrower  agrees to pay,  on demand  and
delivery of a Bank  Certificate  therefor,  all costs and  expenses  (including,
without  limitation,  reasonable  legal fees) of the Bank in connection with the
preparation, execution and delivery of this letter agreement, the Revolving Note
and all other  instruments  and documents to be delivered in connection with any
Revolving  Loan or any letter of credit issued  hereunder and any  amendments or
modifications  of any of the  foregoing,  as  well  as the  costs  and  expenses
(including,  without  limitation,  the  reasonable  fees and  expenses  of legal
counsel)  incurred  by the Bank in  connection  with  preserving,  enforcing  or
exercising,  upon default,  any rights or remedies under this letter  agreement,
the Revolving Note and all other  instruments  and documents  delivered or to be
delivered hereunder or in connection  herewith,  all whether or not legal action
is instituted.  In addition,  the Borrower shall be obligated to pay any and all
stamp and other taxes payable or determined to be payable in connection with the
execution  and delivery of this letter  agreement,  the  Revolving  Note and all
other  instruments  and  documents  to  be  delivered  in  connection  with  any
Obligation.  Any fees,  expenses or other  charges which the Bank is entitled to
receive from the Borrower  under this Section  shall bear interest from the date
of any demand  therefor until the date when paid at a rate per annum equal to 2%
per annum the highest per annum rate otherwise  payable under the Revolving Note
(but in no event in excess of the  maximum  rate  permitted  by then  applicable
law).

       6.2. Facility Fees. The Borrower will pay to the Bank, on the last day of
each calendar  quarter  (commencing  with March 31, 1997) and on the  Expiration
Date, a facility fee equal to 0.20% per annum  (appropriately  pro-rated for any
partial calendar  quarter) based on the average daily Unused Portion during such
calendar  quarter.  As used herein,  the "Unused  Portion" on any day means that
amount by which (x)  $10,000,000  exceeds  (y) the  Aggregate  Bank  Liabilities
outstanding  on that day,  whether  such  excess  results  from a failure by the
Borrower  to borrow (or obtain  letters of credit) up to  $10,000,000  or from a
repayment  of  Revolving  Loans or  reduction  of  outstanding  letter of credit
liabilities  or due to any other reason.  In addition,  if the  within-described
revolving  financing  arrangements are terminated by the Borrower for any reason
or by the Bank as the  result of the  Borrower's  default,  the  Borrower  shall
forthwith  upon  such  termination  pay to the  Bank a sum  equal  to all of the
facility fees which would have become due (absent such termination)  pursuant to
the  immediately  preceding  sentence  during the  period  from the date of such
termination  through the  Expiration  Date,  assuming  for this  purpose that no
Aggregate Bank Liabilities would have been outstanding  during such period.  The
fees described in this Section are in addition to any balances and fees required
by the Bank or any of its  affiliates in connection  with any other services now
or hereafter made available to the Borrower.

       6.3. Other Agreements. The provisions of this letter agreement are not in
derogation  or  limitation  of any  obligations,  liabilities  or  duties of the
Borrower  under any of the other Loan  Documents or any other  agreement with or
for the benefit of the Bank. No inconsistency in default provisions between this
letter agreement and any of the other Loan Documents or any such other agreement
will be deemed to create any additional grace period or otherwise  derogate from
the express  terms of each such default  provision.  No  covenant,  agreement or
obligation of the Borrower contained herein, nor any right or remedy of the Bank
contained herein,  shall in any respect be limited by or be deemed in limitation
of any inconsistent or additional  provisions contained in any of the other Loan
Documents or any such other agreement.

       6.4.  Governing  Law. This letter agreement and the Revolving  Note shall
be governed by, and construed and enforced in accordance with,  the laws of The
Commonwealth of Massachusetts.

       6.5. Addresses for Notices, etc. All notices, requests, demands and other
communications provided for hereunder shall be in writing and shall be mailed or
delivered to the applicable party at the address indicated below:

                If to the Borrower:

                Zoom Telephonics, Inc.
                207 South Street
                Boston, MA  02111
                Attention:  Steven T. Shedd, Chief Financial Officer

                with a copy to:

                Brown, Rudnick, Freed & Gesmer, P.C.
                One Financial Center
                Boston, MA 02111
                Attention:  Lawrence M. Levy, Esq.

                If to the Bank:

                Fleet National Bank
                High Technology Group
                75 State Street
                Boston, MA  02109
                Attention:  Kimberly Martone, Vice President

or, as to each of the foregoing, at such other address as shall be designated by
such Person in a written notice to the other party complying as to delivery with
the  terms of this  Section.  All such  notices,  requests,  demands  and  other
communications shall be deemed delivered on the earlier of (i) the date received
or (ii) the date of delivery,  refusal or  non-delivery  indicated on the return
receipt if deposited in the United States mails, sent postage prepaid, certified
or registered mail, return receipt requested, addressed as aforesaid.

       6.6. Binding Effect; Assignment; Termination. This letter agreement shall
be binding upon the Borrower,  its successors and assigns and shall inure to the
benefit of the Borrower and the Bank and their respective  permitted  successors
and assigns.  The  Borrower  may not assign this letter  agreement or any rights
hereunder  without the  express  written  consent of the Bank.  The Bank may, in
accordance  with  applicable  law and with prior written  notice to the Borrower
(except that, in the case of an assignment to a Federal Reserve Bank as security
for a borrowing by the Bank,  such notice shall not be  required),  from time to
time assign or grant  participation  in this  letter  agreement,  the  Revolving
Loans,  the Revolving  Note and/or the letters of credit issued  hereunder.  The
Borrower may terminate this letter agreement and the financing arrangements made
herein by giving  written  notice of such  termination to the Bank together with
payment of the sum described in the second sentence of ss.6.2;  provided that no
such  termination  will release or waive any of the Bank's rights or remedies or
any of the  Borrower's  obligations  under this letter  agreement  or any of the
other  Loan  Documents  unless  and  until  the  Borrower  has  paid in full the
Revolving  Loans and all  interest  thereon and all fees and charges  payable in
connection  therewith  and all  letters  of credit  issued  hereunder  have been
terminated.

       6.7. Consent to  Jurisdiction.  The Borrower  irrevocably  submits to the
non-exclusive  jurisdiction  of any  Massachusetts  court or any  federal  court
sitting  within  The  Commonwealth  of  Massachusetts  over any suit,  action or
proceeding  arising  out of or  relating  to this  letter  agreement  and/or the
Revolving Note. The Borrower irrevocably waives, to the fullest extent permitted
by law, any objection  which it may now or hereafter have to the laying of venue
of any such  suit,  action or  proceeding  brought in such a court and any claim
that any such suit,  action or  proceeding  has been brought in an  inconvenient
forum.  The  Borrower  agrees that final  judgment  in any such suit,  action or
proceeding  brought  in such a court  shall be  enforced  in any court of proper
jurisdiction  by a suit upon such judgment,  provided that service of process in
such action,  suit or  proceeding  shall have been effected upon the Borrower in
one of the manners  specified  in the  following  paragraph of this ss.6.7 or as
otherwise permitted by law.

        The Borrower hereby consents to process being served in any suit, action
or  proceeding  of the nature  referred to in the  preceding  paragraph  of this
ss.6.7  either (i) by mailing a copy thereof by  registered  or certified  mail,
postage  prepaid,  return receipt  requested,  to it at its address set forth in
ss.6.5  (as such  address  may be  changed  from time to time  pursuant  to said
ss.6.5) or (ii) by serving a copy  thereof  upon it at its  address set forth in
ss.6.5  (as such  address  may be  changed  from time to time  pursuant  to said
ss.6.5).

       6.8.  Severability.  In the  event  that  any  provision  of this  letter
agreement or the application  thereof to any Person,  property or  circumstances
shall be held to any extent to be invalid or  unenforceable,  the  remainder  of
this  letter  agreement,  and the  application  of such  provision  to  Persons,
properties  or  circumstances  other  than  those as to  which it has been  held
invalid and unenforceable,  shall not be affected thereby, and each provision of
this  letter  agreement  shall be  valid  and  enforced  to the  fullest  extent
permitted by law.

VII.  DEFINED TERMS

       7.1.  Definitions.  In addition to terms defined elsewhere in this letter
agreement,  as used in this  letter  agreement,  the  following  terms  have the
following respective meanings:

        "Aggregate Bank Liabilities" - At any time, the sum of (i) the principal
amount of all  Revolving  Loans  then  outstanding,  plus (ii) all then  undrawn
amounts of letters of credit issued by the Bank for the account of the Borrower,
plus (iii) all  amounts  then drawn on any such  letter of credit  which at said
date shall not have been reimbursed to the Bank by the Borrower.

        "Bank  Certificate"  - A  certificate  signed by an  officer of the Bank
setting forth any additional  amount  required to be paid by the Borrower to the
Bank  pursuant to ss.1.2,  ss.1.6,  ss.1.7 or ss.6.1 of this  letter  agreement,
which  certificate  shall be submitted by the Bank to the Borrower in connection
with each demand made at any time by the Bank upon the Borrower  with respect to
any such additional  amount,  and each such certificate shall, save for manifest
error,  constitute  presumptive evidence of the additional amount required to be
paid by the Borrower to the Bank upon each  demand.  A claim by the Bank for all
or any part of any additional  amount required to be paid by the Borrower may be
made  before  and/or  after the end of the  Interest  Period to which such claim
relates or during  which such  claim has  arisen  and  before  and/or  after any
payment  hereunder to which such claim relates.  Each Bank Certificate shall set
forth in  reasonable  detail the basis for and the  calculation  of the claim to
which it relates.

        "Borrowing  Base" - As determined at any date, the sum of (i) 80% of the
aggregate principal amount of the Qualified Domestic Receivables of the Borrower
then  outstanding,  plus  (ii)  80% of the  aggregate  principal  amount  of the
Qualified Foreign  Receivables of the Borrower then outstanding,  plus (iii) 50%
of the aggregate principal amount of the Other Acceptable Foreign Receivables of
the Borrower then outstanding;  provided,  however,  that the total amount which
may be  contributed to Borrowing Base by Other  Acceptable  Foreign  Receivables
pursuant  to  this  clause  (iii)  will  not  at  any  time  exceed  10%  of the
then-effective total Borrowing Base.

        "Business  Day" - Any day which is not a  Saturday,  nor a Sunday  nor a
public  holiday  under  the  laws  of  the  United  States  of  America  or  The
Commonwealth of  Massachusetts  applicable to a national bank;  provided however
that  if the  applicable  provision  relates  to a LIBOR  Loan,  then  the  term
"Business Day" shall not include any day on which dealings are not carried on in
the  London  interbank  market or on which  banks are not open for  business  in
London.

        "Capital Base" - At any time, the sum of (i) the  consolidated  Tangible
Net  Worth  of the  Borrower  and  Subsidiaries  then  existing,  plus  (ii) the
principal amount of Subordinated Debt of the Borrower then outstanding  (nothing
contained   herein  being  deemed  to  authorize  the  incurrence  of  any  such
Subordinated Debt).

        "Current  Liabilities"  - All  liabilities  of the  Borrower  and/or any
Subsidiary of the Borrower which are properly shown as current  liabilities on a
consolidated balance sheet of the Borrower prepared in accordance with generally
accepted  accounting   principles   consistently  applied.   Further,   "Current
Liabilities" will in any event be deemed to include the Revolving Loans.

        "ERISA"  - The  Employee  Retirement  Income  Security  Act of 1974,  as
amended.

        "Eurocurrency  Liabilities"  - Has the meaning  assigned to that term in
Regulation  D of the Board of Governors  of the Federal  Reserve  System (or any
successor),  as in effect  from  time to time,  or in any  successor  regulation
relating to the liabilities described in said Regulation D.

        "Eurodollar  Interest Rate" - For any Interest Period,  an interest rate
per annum,  expressed as a  percentage,  determined  by the Bank pursuant to the
following formula:

                      *EIR  =           LIBOR     +   ERI
                                     [1.00  -  RR]

                             Where EIR      =      Eurodollar Interest Rate
                             LIBOR          =      See definition of LIBOR
                             RR             =      Reserve Rate
                             ERI            =      Eurodollar Rate Increment

               *EIR and each component thereof to be rounded upwards to the next
                higher 1/16th of 1%

        "Eurodollar Rate Increment" -One and one-half percent (1.5%) per annum.

        "Expiration  Date" - August 31, 1997, unless extended by the Bank, which
extension may be given or withheld by the Bank in its sole discretion.

        "Floating Rate"  -  As defined in ss.1.2.

        "Floating  Rate Loan" - Any Revolving  Loan which bears  interest at the
Floating Rate.

        "FSC"  -  Zoom  Telephonics   Foreign  Sales   Corporation,   a  U.S.  
Virgin  Islands corporation which is a wholly-owned Subsidiary of the Borrower.

        "Impositions"   -  All  present  and  future  taxes,   levies,   duties,
impositions,  deductions,  charges and withholdings  applicable to the Bank with
respect to any LIBOR Loan, excluding, however, any taxes imposed directly on the
Bank's income and any franchise  taxes imposed on it by the  jurisdiction  under
the laws of which the Bank is organized or any political subdivision thereof.

        "Indebtedness"  -  All  obligations  of a  Person,  whether  current  or
long-term,  senior or subordinated,  which in accordance with generally accepted
accounting  principles  would be  included  as  liabilities  upon such  Person's
balance sheet at the date as of which  Indebtedness,  is to be  determined,  and
shall also include  guaranties,  endorsements  (other than for collection in the
ordinary course of business) or other  arrangements  whereby  responsibility  is
assumed  for the  obligations  of others,  whether by  agreement  to purchase or
otherwise acquire the obligations of others, including any agreement, contingent
or  otherwise,  to furnish  funds  through the  purchase  of goods,  supplies or
services for the purpose of payment of the obligations of others.

        "Interest  Payment  Date" - As to  each  LIBOR  Loan,  the  last  day of
Interest  Period  applicable  to such LIBOR Loan;  provided that if any Interest
Period is in excess of three  months,  there will be two Interest  Payment Dates
applicable  thereto - the first being three months from the commencement date of
such Interest Period and the second being the last day of such Interest Period.

        "Interest  Period" - As to each LIBOR Loan, the period  commencing  with
the date of the making of such LIBOR Loan and ending  one,  two or three  months
thereafter,  as the Borrower  may select;  provided  that (A) any such  Interest
Period which would  otherwise  end on a day which is not a Business Day shall be
extended to the next succeeding  Business Day unless such Business Day occurs in
a new  calendar  month,  in which  case such  Interest  Period  shall end on the
immediately preceding Business Day, (B) any such Interest Period which begins on
a day for which there is no numerically  corresponding day in the calendar month
during which such  Interest  Period is to end shall end on the last Business Day
of such calendar  month,  and (C) no Interest Period may be selected which would
end after the Expiration Date.

        "LIBOR" - With respect to each  Interest  Period for a LIBOR Loan,  that
rate per annum  (rounded  upward,  if  necessary,  to the nearest 1/16 of 1%) at
which deposits in United States Dollars are offered to the Bank, for delivery on
the first day of the applicable  Interest Period, in the London interbank market
at 10:00  a.m.  London  time two  Business  Days  prior to the  first day of the
applicable  Interest  Period  for a term  equal  to the term of the  LIBOR  Loan
requested for such Interest Period and in an amount  substantially  equal to the
principal  amount of the relevant  LIBOR Loan. The Bank shall give prompt notice
to the Borrower of LIBOR as determined for each LIBOR Loan and such notice shall
be conclusive and binding, absent manifest error.

        "LIBOR Loan" - Any Revolving  Loan which bears  interest at a Eurodollar
Interest Rate.

        "Loan Documents" - Each of this letter agreement, the Revolving Note and
each other instrument, document or agreement evidencing,  securing, guaranteeing
or  relating in any way to any of the  Revolving  Loans or any of the letters of
credit  issued  hereunder,  all whether now  existing  or  hereafter  arising or
entered into.

        "London"  -  The City of London in England.

        "Maximum  Revolving  Amount"  - At any  date as of  which  same is to be
determined,  the amount by which (x) $10,000,000  exceeds (y) the sum of (i) all
then undrawn  amounts of letters of credit issued by the Bank for the account of
the Borrower plus (ii) all amounts then drawn on any such letter of credit which
at said date  shall not have been  reimbursed  to the Bank by the  Borrower  (by
virtue of the making of a Revolving Loan or otherwise).

        "Net Income" (or "Net Loss") - The book net income (or book net loss, as
the case may be) of a Person for any period,  after all taxes  actually  paid or
accrued  and all  expenses  and other  charges  determined  in  accordance  with
generally accepted accounting principles consistently applied.

        "Net Quick  Assets" - Such current  assets of the Borrower as consist of
cash, cash-equivalents,  readily-marketable  securities and Receivables (less an
allowance for bad debt consistent with the Borrower's prior experience).

        "Obligations" - All Indebtedness, covenants, agreements, liabilities and
obligations, now existing or hereafter arising, made by the Borrower with or for
the benefit of the Bank or owed by the Borrower to the Bank in any capacity.

        "Other  Acceptable  Foreign  Receivables"  -  Those  Receivables  of the
Borrower  which are not  Qualified  Foreign  Receivables  (because  they are not
supported  by  acceptable  credit  enhancement)  but  which  satisfy  all of the
criteria set forth below to be  Qualified  Domestic  Receivables  other than the
requirement that the relevant customer be located in the United States; provided
that in each  case  the  Bank  has  approved  the  relevant  customer  as  being
satisfactory for this purpose. The approval of the Bank of any customer for this
purpose may be given or withheld by the Bank, and any approval  previously given
may at any time be withdrawn by the Bank, all at the Bank's sole discretion.  In
addition, if FSC and/or Zoom UK executes and delivers to the Bank (together with
such corporate  documentation as the Bank may reasonably require) and thereafter
maintains in effect a guaranty of the Borrower's  Obligations  (such guaranty to
be  satisfactory  in form and  substance  to the Bank),  then "Other  Acceptable
Foreign  Receivables"  will be  deemed to  include  such  amounts  as are now or
hereafter  owed to the Borrower by FSC and/or Zoom UK, as applicable  (exclusive
of  any  such  amounts  includable  in the  definition  of  "Qualified  Domestic
Receivables" or "Qualified Foreign  Receivables"),  even though such amounts are
owed to the Borrower by an entity  related to the Borrower,  to the extent,  but
only to the  extent,  that such  amounts  arise  out of sales of the  Borrower's
products made by FSC and/or Zoom UK, as the case may be, to unrelated  customers
and that the Receivables of FSC and/or Zoom UK, as the case may be, generated by
such  sales  satisfy  all of  the  requirements  set  forth  in the  immediately
preceding two sentences to be "Other Acceptable Foreign Receivables", other than
the requirement that such Receivables be owned by the Borrower.

        "Parent" - Zoom  Telephonics,  Inc., a Canadian  corporation  which owns
100% of the outstanding capital stock of the Borrower.

        "Parent's  Subsidiaries"  - Any corporation or other entity of which the
Parent and/or any of the other  Parent's  Subsidiaries,  directly or indirectly,
owns,  or has the right to control or direct the voting of, fifty (50%)  percent
or more of the  outstanding  capital stock or other  ownership  interest  having
general voting power (under ordinary circumstances).

        "PBGC"  - The Pension Benefit Guaranty Corporation or any successor
thereto.

        "Person" - An individual,  corporation,  partnership,  limited liability
company, joint venture, trust or unincorporated organization, or a government or
any agency or political subdivision thereof.

        "Qualified  Domestic  Receivables"  -  Only  those  Receivables  of  the
Borrower  which arise out of bona fide sales made to  customers  of the Borrower
(which  customers  are  located in the United  States and are  unrelated  to the
Borrower) in the  ordinary  course of the  Borrower's  business and which remain
unpaid  no  more  than  90  days  past  the  respective  invoice  dates  of such
Receivables, the payment of which is not in dispute. Unless the Bank in its sole
discretion  otherwise  determines with respect to any  Receivable,  a Receivable
which would otherwise be a Qualified Domestic  Receivable shall be deemed not to
be a Qualified Domestic  Receivable (i) if such Receivable is not free and clear
of all adverse interests in favor of any Person other than the Borrower; (ii) if
such  Receivable  is  subject  to  any  deduction,   off-set,   contra  account,
counterclaim or condition;  (iii) if a field  examination made by the Bank fails
to confirm that such  Receivable  exists and  satisfies  all of the criteria set
forth herein to be a Qualified Domestic  Receivable;  (iv) if such Receivable is
not properly invoiced at the date of sale; (v) if the customer or account debtor
has disputed  liability or made any claim with respect to the  Receivable or the
merchandise  covered thereby (provided,  however,  that if such dispute or claim
relates to less than 15% of the  principal  amount of the  relevant  Receivable,
then only the disputed  amount and not the entire amount of such Receivable will
be deemed excluded pursuant to this clause (v)); (vi) if the customer or account
debtor is subject to a petition  for  bankruptcy  or any other  application  for
relief under the Bankruptcy Code (whether or not such petition was filed by said
customer or account  debtor) or is subject to an  assignment  for the benefit of
creditors,  or if said customer's or account debtor's business is suspended,  or
if the  customer or account  debtor is  insolvent  or is not paying its debts as
they become due, or if a receiver or trustee is appointed  for any of its assets
or  affairs;  (vii) if the  customer  or account  debtor has failed to pay other
Receivables  so that an aggregate of 25% of the total  Receivables  owing to the
Borrower by such customer or account debtor has been  outstanding  for more than
90 days past  their  respective  due  dates;  or  (viii) if the Bank  reasonably
believes that  collection  of such  Receivable is insecure or that it may not be
paid  by  reason  of  financial  inability  to pay or  otherwise  or  that  such
Receivable  is not for any  reason  suitable  for use as a basis  for  borrowing
hereunder.  In addition,  if Tribe  executes and delivers to the Bank  (together
with  such  corporate  documentation  as the Bank may  reasonably  require)  and
thereafter  maintains in effect a guaranty of the Borrower's  Obligations  (such
guaranty to be satisfactory in form and substance to the Bank),  then "Qualified
Domestic  Receivables"  will be deemed to  include  such  amounts  as are now or
hereafter  owed by Tribe to the  Borrower  (even though such amounts are owed to
the Borrower by an entity  related to the  Borrower) to the extent,  but only to
the extent, that such amounts arise out of sales of the Borrower's products made
by Tribe to unrelated  customers and that the  Receivables of Tribe generated by
such  sales  satisfy  all of  the  requirements  set  forth  in the  immediately
preceding two  sentences to be Qualified  Domestic  Receivables,  other than the
requirement that such Receivables be owned by the Borrower.

        "Qualified  Foreign  Receivables"  - Those  Receivables  of the Borrower
which  satisfy  all of the  criteria  set forth above to be  Qualified  Domestic
Receivables  other than the requirement that the relevant customer be located in
the United  States;  provided  that each such  Qualified  Foreign  Receivable is
supported by credit  insurance  or a letter of credit,  in each case issued by a
credit enhancer  satisfactory to the Bank and in each case containing  terms and
conditions satisfactory to the Bank. In addition, if FSC and/or Zoom UK executes
and delivers to the Bank (together with such corporate documentation as the Bank
may  reasonably  require) and  thereafter  maintains in effect a guaranty of the
Borrower's  Obligations  (such guaranty to be satisfactory in form and substance
to the Bank),  then "Qualified  Foreign  Receivables"  will be deemed to include
such amounts as are now or hereafter owed to the Borrower by FSC and/or Zoom UK,
as  applicable  (even  though such amounts are owed to the Borrower by an entity
related  to the  Borrower)  to the  extent,  but only to the  extent,  that such
amounts  arise out of sales of the  Borrower's  products made by FSC and/or Zoom
UK, as the case may be, to unrelated  customers and that the  Receivables of FSC
and/or Zoom UK, as the case may be,  generated by such sales  satisfy all of the
requirements  set forth in the  immediately  preceding  sentence to be Qualified
Foreign  Receivables,  other than the requirement that such Receivables be owned
by the Borrower. Amounts included in "Qualified Foreign Receivables" pursuant to
the  immediately  preceding  sentence  are not to be "double  counted"  with any
amounts  includable in "Qualified  Domestic  Receivables"  or "Other  Acceptable
Foreign Receivables".

        "Receivables"  - As to any  Person,  all of such  Person's  present  and
future accounts receivable for goods sold or for services rendered.

        "Reserve Rate" - The aggregate  rate,  expressed as a decimal,  at which
the Bank would be required to maintain  reserves under Regulation D of the Board
of  Governors  of the  Federal  Reserve  System  (or any  successor  or  similar
regulation  relating  to  such  reserve   requirements)   against   Eurocurrency
Liabilities,  as well as any other reserve  required of the Bank with respect to
the LIBOR Loans. The Eurodollar Interest Rate shall be adjusted automatically on
and as of the effective date of any change in the Reserve Rate.

        "Senior Debt" - All Indebtedness of the Borrower and/or its Subsidiaries
which does not constitute Subordinated Debt.

        "Subordinated  Debt"  -  Any  Indebtedness  of  the  Borrower  which  is
expressly  subordinated,  pursuant  to a  subordination  agreement  in form  and
substance satisfactory to the Bank, to all Indebtedness now or hereafter owed by
the Borrower to the Bank.

        "Subsidiary"  - Any  corporation  or other  entity of which the Borrower
and/or any of its Subsidiaries,  directly or indirectly,  owns, or has the right
to  control  or  direct  the  voting  of,  fifty  (50%)  percent  or more of the
outstanding  capital stock or other  ownership  interest  having  general voting
power (under ordinary circumstances).

        "Tangible Net Worth" - An amount equal to the total assets of any Person
(excluding  (i) the total  intangible  assets of such Person,  (ii) any minority
interests in Subsidiaries and (iii) any assets representing amounts due from any
officer or employee of such Person or from any  Subsidiary of such Person) minus
the total liabilities of such Person. Total intangible assets shall be deemed to
include,  but shall not be  limited  to,  the  excess of cost over book value of
acquired businesses accounted for by the purchase method, formulae,  trademarks,
trade names,  patents,  patent rights and deferred expenses (including,  but not
limited to,  unamortized  debt  discount  and expense,  organizational  expense,
capitalized software costs and experimental and development expenses).

        "Tribe" - Tribe  Computer  Works  Incorporated,  a Delaware  corporation
which is a wholly-owned Subsidiary of the Borrower.

        "Zoom UK" - Zoom Telephonics,  Ltd., a United Kingdom  corporation which
is a wholly-owned Subsidiary of the Borrower.

        Any defined  term used in the plural  preceded by the  definite  article
shall be taken to encompass all members of the relevant class.  Any defined term
used in the singular  preceded by "any" shall be taken to indicate any number of
the members of the relevant class.

       This letter agreement is executed, as an instrument under seal, as of the
day and year first above written.

                                                   Very truly yours,

                                                   ZOOM TELEPHONICS, INC.


                                                   By:         /s/ Frank Manning
                                                      Name: Frank Manning
                                                      Title:  President & CEO


                                                   By:          /s/ Steven Shedd
                                                        Name: Steven Shedd
                                                      Title: V.P. Finance & CFO


Accepted and agreed:

FLEET NATIONAL BANK


By:         /s/ Kimberly Martone
    Its      Vice President, High Technology Division


By:         /s/ Thomas Davies
    Its      Senior Vice President, High Technology Division



Exhibit 10.4.  Loan Modification Agreement by and between Zoom Telephonics, Inc.
and Fleet National Bank


                           LOAN MODIFICATION AGREEMENT

This Loan Modification  Agreement ("this  Agreement") is made as of November 13,
1997 between Zoom Telephonics, Inc., a Delaware corporation (the "Borrower") and
Fleet National Bank (the "Bank"). For good and valuable  consideration,  receipt
and sufficiency of which are hereby acknowledged,  the Borrower and the Bank act
and agree as follows:

1.  Reference is made to: (i) that certain  letter  agreement  dated January 17,
1997 (the  "Letter  Agreement")  between the  Borrower  and the Bank;  (ii) that
certain $10,000,000 face principal amount promissory note dated January 17, 1997
(the "January  Revolving Note") made by the Borrower and payable to the order of
the Bank;  (iii) that certain  Guaranty  Agreement  dated as of January 17, 1997
(the "FSC Guaranty") from Zoom Telephonics  Foreign Sales Corporation ("FSC") to
the Bank; (iv) that certain Guaranty Agreement dated as of January 17, 1997 (the
"Tribe Guaranty") from Tribe Computer Works, Incorporated ("Tribe") to the Bank;
(v) that certain Inventory and Accounts  Receivable  Security  Agreement of even
date herewith (the "Zoom Security Agreement") given by the Borrower to the Bank;
(vi) that certain Inventory and Accounts  Receivable  Security Agreement of even
date herewith (the "Tribe Security Agreement") given by Tribe to the Bank; (vii)
that certain Inventory and Accounts  Receivable  Security Agreement of even date
herewith (the "FSC  Security  Agreement")  given by FSC to the Bank;  and (viii)
that certain  $5,000,000  face  principal  amount  promissory  note of even date
herewith (the "November Revolving Note") made by the Borrower and payable to the
order of the Bank. The Letter Agreement,  The FSC Guaranty,  the Tribe Guaranty,
the Zoom Security  Agreement,  the Tribe  Security  Agreement,  the FSC Security
Agreement and the November Revolving Note hereinafter  collectively  referred to
as the "Financing Documents".

2. The Letter Agreement is hereby amended, effective as of the date hereof:

        a. By  deleting  from the second  sentence  of Section 1.1 of the Letter
Agreement  the  amount  "$10,000,000"  and  by  substituting  in its  stead  the
following:

               "$5,000,000"

        b. By deleting in its entirety the fourth sentence of Section 1.1 of the
Letter Agreement and by substituting in its stead the following:

               "The   Revolving   Loans  shall  be  evidenced  by  that  certain
               $5,000,000 face principal amount  promissory note (the `Revolving
               Note')  dated  November 13, 1997 made by the Borrower and payable
               to the order of the Bank."

As a result,  all references in the Letter  Agreement to a "Revolving Note" will
be deemed to refer to the November Revolving Note.

        c. By inserting  into Section 1.1 of the Letter  Agreement,  immediately
following the fourth sentence of such Section, the following:

               "The  Revolving  Loans are secured by that certain  Inventory and
               Accounts  Receivable  Security  Agreement dated November 13, 1997
               (the `Security  Agreement') given by the Borrower to the Bank and
               are guaranteed by Tribe  pursuant to that certain  Guaranty dated
               as of January 17, 1997 (the `Tribe  Guaranty')  from Tribe to the
               Bank and by FSC  pursuant to that  certain  Guaranty  dated as of
               January 17, 1997 (the `FSC  Guaranty')  from FSC to the Bank. The
               Tribe Guaranty is secured by that certain  Inventory and Accounts
               Receivable Security Agreement dated November 13, 1997 (the `Tribe
               Security  Agreement')  given  by  Tribe  to the  Bank and the FSC
               Guaranty  is  secured  by that  certain  Inventory  and  Accounts
               Receivable  Security  Agreement dated November 13, 1997 (the `FSC
               Security Agreement') given by FSC to the Bank."



        d.     By deleting in their entireties Sections 1.2 and 1.3 of the 
Letter  Agreement and by substituting in their stead the following:

               "1.2.  Interest Rate.  The Revolving  Loans shall be evidenced by
               the Revolving  Note and interest  thereon shall be payable at the
               times and at the rate provided for in the Revolving Note. Overdue
               principal of the Revolving Loans and, to the extent  permitted by
               law,  overdue  interest shall bear interest at a fluctuating rate
               per  annum  which at all  times  shall be equal to the sum of (i)
               four  (4%)  percent  per  annum  plus  (ii)  the per  annum  rate
               otherwise  payable under the  Revolving  Note (but in no event in
               excess of the maximum  rate from time to time  permitted  by then
               applicable law), compounded monthly and payable on demand.

               1.3. Repayment;  Renewal of Revolving Loan Facility. The Borrower
               shall repay in full all Revolving Loans and all interest  thereon
               upon the first to occur of: (i) the  Expiration  Date, or (ii) an
               acceleration under ss.5.2(a)  following an Event of Default.  The
               Borrower may prepay at any time, without penalty or premium,  the
               whole or any portion of any Revolving  Loan.  In addition,  if at
               any time the  Borrowing  Base is in an amount  which is less than
               the then  outstanding  Aggregate Bank  Liabilities,  the Borrower
               will  forthwith  prepay so much of the Revolving  Loans as may be
               required (or arrange for termination of such letters of credit as
               may be required) so that the Aggregate Bank  Liabilities will not
               exceed the Borrowing Base. The Bank may, at its sole  discretion,
               renew the  revolving  financing  arrangements  described  in this
               letter  agreement by extending the  Expiration  Date in a writing
               signed by the Bank and  accepted  by the  Borrower.  Neither  the
               inclusion  in this letter  agreement  or  elsewhere  of covenants
               relating to periods of time after the  Expiration  Date,  nor any
               other  provision  hereof,   nor  any  action  (except  a  written
               extension  pursuant  to  the  immediately   preceding  sentence),
               non-action  or course of  dealing on the part of the Bank will be
               deemed an  extension  of, or agreement on the part of the Bank to
               extend, the Expiration Date."

        e.     By  deleting  in  their  entireties  Sections  1.4,  1.5 and 1.6 
of the  Letter Agreement and by substituting in their stead the following:

               "1.4.  Reserved.
               1.5.  Reserved.
               1.6.  Reserved."

        f.     By  deleting  in its  entirety  paragraph  (i)  of  Section  1.7 
of the Letter Agreement.

        g.  By  deleting  from  paragraph  (ii)  of  Section  1.7 of the  Letter
Agreement  the words  "(whether or not then subject to any  Eurodollar  Interest
Rate)".

        h.     By deleting in its entirety Section 1.8 of the Letter Agreement.

        i. By  deleting  from the  second  sentence  of the third  paragraph  of
Section 1.9 of the Letter Agreement the word  "Impositions"  and by substituting
in its stead the following:

               "impositions"

        j. By  inserting  into the  third  sentence  of the third  paragraph  of
Section 1.9 of the Letter Agreement,  immediately  after the words  "immediately
available funds", the following:

               "in lawful currency of the United States"

        k. By deleting  from the first  sentence  of Section  1.10 of the Letter
Agreement  the amount  "$10,000,000"  (in each place  where it  appears)  and by
substituting in its stead the following:

               "$5,000,000"

        l. By  inserting  into  Article I of the  Letter  Agreement,  at the end
thereof, the following:

               "1.12.  Foreign  Exchange.  The  Bank  is also  providing  to the
               Borrower  (on terms  agreed to or to be agreed to outside of this
               letter  agreement) a facility  (the `F/X  Facility')  for forward
               foreign exchange contracts (`Foreign Exchange Contracts') between
               the Bank and the  Borrower.  The F/X Facility will have an expiry
               date of  September  30,  1998 and will  permit  Foreign  Exchange
               Contracts in a maximum  aggregate  notional  amount of $1,000,000
               outstanding  at any one  time  and a  $500,000  daily  settlement
               limit."

        m.  By  deleting  the  period  at  the  end of the  second  sentence  of
Subsection  2.1(a) of the Letter  Agreement and by substituting in its stead the
following:

               "and to grant the security interests contemplated by the Security
                Agreement."

        n. By  inserting  into  clause  (i) of  Subsection  2.1(c) of the Letter
Agreement, immediately after the words "any filing", the following:

               "(other  than  filings  under  the  Uniform  Commercial  Code  or
                other relevant record indexing laws)"

        o.     By adding to  Subsection  2.1(j) of the Letter  Agreement, at the
end thereof, the following:

               "All  of the  books  and  records  of the  Borrower  relating  to
               Receivables  and/or  inventory are located at said  address.  The
               principal place of business and chief  executive  offices of each
               of FSC and Tribe are as follows: FSC - 207 South Street,  Boston,
               MA; and Tribe - 207 South  Street,  Boston,  MA. All of the books
               and  records  of FSC and Tribe  relating  to  Receivables  and/or
               inventory  are  located  at the  respective  addresses  described
               above.  Except  as  described  on  item  2.1(j)  of the  attached
               Disclosure Schedule,  none of the inventory of the Borrower,  FSC
               or Tribe is located at any location  other than at the respective
               chief executive offices of the Borrower,  FSC and Tribe described
               above."

        p. By  inserting  into the  introductory  clause to  Article  III of the
Letter Agreement, immediately after the words "letter of credit issued hereunder
shall be outstanding", the following:

               "or  the  F/X  Facility  shall  be in  effect  or any  Foreign  
               Exchange Contract shall be outstanding"

        q. By adding to each of clause (i) and clause (ii) of Section 3.6 of the
Letter Agreement, at the end of each such clause, the following:

               "Financial statements delivered under this clause shall include a
               certification  by the chief financial  officer of the Borrower to
               the effect that as at the date of such  financial  statements the
               Tangible  Net  Worth  of the  Borrower  alone  (exclusive  of its
               investment in Subsidiaries and any debt owed by any Subsidiary to
               the  Borrower)  will  not be less  than  90% of the  Consolidated
               Tangible Net Worth of the Borrower and Subsidiaries."

        r. By deleting  from the last sentence of clause (iii) of Section 3.6 of
the  Letter  Agreement  the  words  "compliance  with   ss.ss.3.7-3.10"  and  by
substituting in their stead the following:

               "compliance with each of ss.ss.3.7, 3.8 and 3.10"

        s. By deleting  from clause (vi) of Section 3.6 of the Letter  Agreement
the words  "Sections  3.7,  3.8, 3.9 and/or 3.10" and by  substituting  in their
stead the following:

               "Sections 3.7, 3.8 and/or 3.10"

        t. By deleting in its entirety  Section 3.8 of the Letter  Agreement and
by substituting in its stead the following:

               "3.8.  Capital Base.  The Borrower will maintain as at the end of
               each fiscal quarter  (commencing  with its results as at December
               31,  1997) a  consolidated  Capital  Base of not  less  than  the
               then-effective  Capital Base  Requirement.  As used  herein,  the
               `Capital   Base   Requirement'   will  be  deemed  to  have  been
               $35,000,000  for  September  30, 1997;  and as at the last day of
               each fiscal  quarter  thereafter  (commencing  with  December 31,
               1997)  (each,   a   `Determination   Date'),   the  Capital  Base
               Requirement  will be deemed to become an amount  equal to the sum
               of: (i) that Capital Base Requirement  which was in effect at the
               last day of the immediately  preceding fiscal quarter,  plus (ii)
               50%  of  the   consolidated   Net  Income  of  the  Borrower  and
               Subsidiaries   during   the   fiscal   quarter   ending  at  such
               Determination  Date (but without  giving effect to any Net Income
               which is less than zero for any fiscal quarter)."

        u.     By deleting in its entirety Section 3.9 of the Letter Agreement.

        v. By inserting into the introductory clause to Article IV of the Letter
Agreement,  immediately after the words "letter of credit issued hereunder shall
be outstanding", the following:

               "or  the  F/X  Facility  shall  be in  effect  or any  Foreign 
               Exchange Contract shall be outstanding"

        w. By inserting into clause (i) of Section 4.1 of the Letter  Agreement,
immediately after the words "issued by the Bank", the following:

               "and any  Indebtedness in respect of Foreign  Exchange  Contracts
               issued by the Bank"

        x. By  renumbering  clauses  (ix) and (x) of  Section  4.1 of the Letter
Agreement so that same will be known as clauses "(x)" and "(xi)", respectively.

        y. By inserting  into Section 4.1 of the Letter  Agreement,  immediately
after clause (viii) thereof, the following:

               "(ix) any Indebtedness which represents  mortgage debt secured by
               the Borrower's premises at 201 and 207 South Street, Boston, MA;"

        z. By renumbering  clause (vi) of Section 4.2 of the Letter Agreement so
that same will be known as clause "(vii)".

        aa     By  inserting  into  Section  4.2 of the Letter  Agreement,  
immediately  after clause (v) thereof, the following:

               "(vi) any mortgage which may hereafter be granted by the Borrower
               encumbering its premises at 201 and 207 South Street, Boston, MA;
               or"

        bb. By inserting into the final  unnumbered  paragraph of Section 4.2 of
the  Letter  Agreement,  immediately  after  the  words  "on  its  assets",  the
following:

               "(other  than  its real  property  at 201  South  Street  and 207
               South Street, Boston, MA)"

        cc.    By deleting  the period at the end of Section 4.3 of the Letter 
Agreement  and by substituting in its stead the following:

               ", and (iv) any guaranties in favor of the Bank."

        dd.    By deleting in its  entirety  the first  sentence of Section 4.10
of the Letter Agreement and by substituting in its stead the following:

               "The  Borrower will not change its name or legal  structure  (nor
               permit Tribe and/or FSC to do so), nor will the Borrower move its
               chief  executive  offices or principal place of business from the
               premises  described in Subsection  2.1(j) above (nor permit Tribe
               and/or FSC to do so), nor will the  Borrower  remove any books or
               records  relating to  Collateral  from such  premises (nor permit
               Tribe  and/or  FSC to do so),  nor  will  the  Borrower  keep any
               Collateral  at any location  other than at such premises or other
               premises shown on item 2.1(j) of the attached Disclosure Schedule
               (nor permit Tribe and/or FSC to do so) without, in each instance,
               giving  the  Bank at  least 30 days'  prior  written  notice  and
               providing all such financing  statements,  certificates and other
               documentation  as the Bank may request in order to  maintain  the
               perfection  and  priority of the  security  interests  granted or
               intended to be granted pursuant to the Security Agreement."

        ee.    By  deleting  from  clause  (c) of  Section  5.1 of the  Letter  
Agreement  the reference to Section 3.9.

        ff.    By renumbering  clause (n) of Section 5.1 of the Letter Agreement
so that same will be known as clause "(p)".

        gg.    By inserting into Section 5.1 of the Letter  Agreement,  
immediately  following clause (m) thereof, the following:

               "(n) the Security Agreement,  the Tribe Security  Agreement,  the
               FSC Security  Agreement or any other Loan Document  shall for any
               reason (other than due to payment in full of all amounts  secured
               or evidenced  thereby or due to discharge in writing by the Bank)
               not  remain  in  full  force  and  effect;  or (o)  the  security
               interests  and liens of the Bank in and on any of the  Collateral
               covered or intended to be covered by the Security Agreement,  the
               FSC security Agreement and/or the Tribe Security Agreement and as
               to which  perfection  may be had under  Article 9 of the  Uniform
               Commercial  Code shall for any reason  (other than due to written
               release by the Bank or due to failure by the Bank to file or take
               other  appropriate  steps  to  perfect  a  security  interest  in
               Collateral  the location of which has been disclosed to the Bank)
               not be fully perfected liens and security interests; or"

        hh.    By  deleting  the period at the end of clause (b) of Section  5.2
of the Letter Agreement and by substituting in its stead the following:

               "and terminate the F/X Facility."

        ii. By inserting into clause (c) of Section 5.2 of the Letter Agreement,
immediately after the words "the Revolving Note", the following:

               ", under the Security  Agreement,  under the FSC Guaranty,  under
               the FSC Security Agreement,  under the Tribe Guaranty,  under the
               Tribe Security Agreement,"

        jj.    By adding to  Section  5.3 of the Letter  Agreement,  at the end 
thereof,  the following:

               "ANY AND ALL RIGHTS TO REQUIRE THE BANK TO EXERCISE ITS RIGHTS OR
               REMEDIES WITH RESPECT TO ANY OTHER  COLLATERAL  WHICH SECURES ANY
               OF THE OBLIGATIONS PRIOR TO THE EXERCISE BY THE BANK OF ITS RIGHT
               OF SET-OFF UNDER THIS SECTION ARE HEREBY  KNOWINGLY,  VOLUNTARILY
               AND IRREVOCABLY WAIVED."

        kk. By inserting into Section 6.1 of the Letter  Agreement,  immediately
after the words "the  Revolving  Note",  in each place  where same  appear,  the
following:

               ",  the  Security  Agreement,  the FSC  Security  Agreement,  the
               Tribe Security Agreement"

        ll.    By inserting into Section 6.2 of the Letter  Agreement,  
immediately  after the words "0.20% per annum", the following:

               "(0.5% per annum for all periods on or after November 13, 1997)"

        mm. By inserting into Section 6.2 of the Letter  Agreement,  immediately
after  the  amount  "$10,000,000",  in  both  places  where  same  appears,  the
following:

               "($5,000,000 for all periods on or after November 13, 1997)"

        nn. By deleting from Section 6.5 of the Loan Agreement the words "Steven
T.  Shedd,  Chief  Financial  Officer"  and by  substituting  in their stead the
following:

               "Robert Crist, Chief Financial Officer"

        oo.    By inserting into Article VI of the Letter Agreement,  at the end
thereof,  the following:

               "6.9.  Replacement  Note.  Upon  receipt  of an  affidavit  of an
               officer  of  the  Bank  as to the  loss,  theft,  destruction  or
               mutilation  of the  Revolving  Note or of any other Loan Document
               which  is not of  public  record  and,  in the  case of any  such
               mutilation, upon surrender and cancellation of the Revolving Note
               or other Loan Document, the Borrower will issue, in lieu thereof,
               a replacement  Revolving  Note or other Loan Document in the same
               principal  amount (as to the Revolving  Note) and in any event of
               like tenor.

               6.10. Usury. All agreements between the Borrower and the Bank are
               hereby  expressly  limited  so that in no  contingency  or  event
               whatsoever,  whether by reason of acceleration of maturity of the
               Revolving  Note or otherwise,  shall the amount paid or agreed to
               be  paid  to the  Bank  for  the  use or the  forbearance  of the
               Indebtedness represented by the Revolving Note exceed the maximum
               permissible under applicable law. In this regard, it is expressly
               agreed that it is the intent of the Borrower and the Bank, in the
               execution,  delivery and  acceptance  of the  Revolving  Note, to
               contract in strict  compliance with the laws of The  Commonwealth
               of  Massachusetts.   If,  under  any  circumstances   whatsoever,
               performance or fulfillment of any provision of the Revolving Note
               or any of the other Loan  Documents at the time such provision is
               to be performed or fulfilled shall involve exceeding the limit of
               validity  prescribed by applicable law, then the obligation so to
               be performed or fulfilled shall be reduced  automatically  to the
               limits  of  such  validity,   and  if  under  any   circumstances
               whatsoever  the Bank  should  ever  receive as interest an amount
               which would  exceed the highest  lawful  rate,  such amount which
               would be excessive  interest shall be applied to the reduction of
               the principal  balance evidenced by the Revolving Note and not to
               the payment of  interest.  The  provisions  of this  Section 6.10
               shall control every other provision of this letter  agreement and
               of the Revolving Note.

               6.11.  WAIVER OF JURY  TRIAL.  THE  BORROWER  AND THE BANK HEREBY
               KNOWINGLY, VOLUNTARILY AND INTENTIONALLY MUTUALLY WAIVE THE RIGHT
               TO A TRIAL BY JURY IN RESPECT OF ANY CLAIM BASED HEREON,  ARISING
               OUT OF, UNDER OR IN CONNECTION  WITH THIS LETTER  AGREEMENT,  THE
               REVOLVING  NOTE OR ANY OTHER LOAN  DOCUMENTS OR OUT OF ANY COURSE
               OF  CONDUCT,  COURSE  OF  DEALING,  STATEMENTS  (WHETHER  ORAL OR
               WRITTEN)  OR ACTIONS  OF ANY PARTY.  THIS  WAIVER  CONSTITUTES  A
               MATERIAL  INDUCEMENT  FOR THE  BANK TO  ENTER  INTO  THIS  LETTER
               AGREEMENT AND TO MAKE REVOLVING LOANS AS CONTEMPLATED HEREIN."

        pp. By deleting in their entireties the following  definitions appearing
in Section 7.1 of the Letter Agreement: "Eurocurrency Liabilities",  "Eurodollar
Interest Rate",  "Eurodollar  Rate Increment",  "Floating Rate",  "Floating Rate
Loan",  "Impositions",  "Interest  Payment Date",  "Interest  Period",  "LIBOR",
"LIBOR Loan",  "London",  "Other  Acceptable  Foreign  Receivables" and "Reserve
Rate".

        qq. By deleting from the definition of "Bank  Certificate"  appearing in
Section 7.1 of the Letter Agreement the references to Sections 1.2 and 1.6.

        rr. By deleting in its  entirety  the  definition  of  "Borrowing  Base"
appearing  in Section 7.1 of the Letter  Agreement  and by  substituting  in its
stead the following:

               "`Borrowing Base' - As determined at any date, the sum of (i) 70%
               of the  aggregate  principal  amount  of the  Qualified  Domestic
               Receivables of the Borrower then outstanding plus (ii) 70% of the
               aggregate  principal  amount  of the  Qualified  Insured  Foreign
               Receivables of the Borrower then outstanding."

        ss.    By deleting in its entirety the proviso  clause in the definition
of "Business Day" appearing in Section 7.1 of the Letter Agreement.

        tt.    By inserting into Section 7.1 of the Letter Agreement, 
immediately  after the definition of "Capital Base", the following:

               "`Collateral'  - All  property  now  or  hereafter  owned  by the
               Borrower,  FSC and/or Tribe or in which the Borrower,  FSC and/or
               Tribe  has any  interest,  but only to the  extent  that  same is
               described  as  `Collateral'  in the Security  Agreement,  the FSC
               Security  Agreement  and/or the Tribe  Security  Agreement  or in
               Subsection 7.2(b) below."

        uu. By deleting from the  definition of "Expiration  Date"  appearing in
Section  7.1  of  the  Letter  Agreement  the  date  "August  31,  1997"  and by
substituting in its stead the following:

               "September 30, 1998"

As a result,  from and after the date  hereof,  for the  purposes  of the Letter
Agreement  and the other  Financing  Documents,  the  "Expiration  Date" will be
deemed to be September 30, 1998.

        vv.    By inserting into Section 7.1 of the Letter  Agreement,  
immediately  after the definition of "Expiration Date", the following:

               "`Foreign Exchange Contracts' - As defined in ss.1.12 above.

               `FSC Guaranty' - As defined in ss.1.1 above.

               `FSC Security Agreement' - As defined in ss.1.1 above.

               `F/X Facility' - As defined in ss.1.12 above."

        ww. By inserting  into the definition of "Loan  Documents"  appearing in
Section  7.1 of the Letter  Agreement,  immediately  after the words  "Revolving
Note", the following:

               ", the  Security  Agreement,  the Tribe  Guaranty,  the  Tribe  
               Security Agreement, the FSC Guaranty, the FSC Security Agreement"

        xx. By  deleting  from the  definition  of  "Maximum  Revolving  Amount"
appearing in Section 7.1 of the Letter Agreement the amount "$10,000,000" and by
inserting in its stead the following:

               "$5,000,000"

        yy.    By deleting the period at the end of the definition of 
"Obligations"  appearing in Section 7.1 of the Letter Agreement and by 
substituting in its stead the following:

               ",  including,  without  limitation,  the Revolving Loans and any
               obligations  now or  hereafter  arising  with  respect to Foreign
               Exchange Contracts."

        zz. By deleting in its entirety clause (i) of the second sentence of the
definition of "Qualified Domestic  Receivables"  appearing in Section 7.1 of the
Letter Agreement and by substituting in its stead the following:

               "(i)  (A) if the  Bank  does  not  have a fully  perfected  first
               priority  security  interest  in such  Receivable  or (B) if such
               Receivable  is not free and  clear of all  adverse  interests  in
               favor of any Person other than the Borrower and the Bank;"

        aaa.  By  renumbering  clause  (viii)  of  the  second  sentence  of the
definition of "Qualified Domestic  Receivables"  appearing in Section 7.1 of the
Letter Agreement so that it will be known as clause (ix) thereof.

        bbb.  By  inserting  into  the  second  sentence  of the  definition  of
"Qualified  Domestic  Receivables"  appearing  in  Section  7.1  of  the  Letter
Agreement, immediately following clause (vii) thereof, the following:

               "(viii)  if  such   Receivable  is  owed  by  the  United  States
               government or any agency or department  thereof (unless  assigned
               to the Bank under the Federal Assignment of Claims Act);"

        ccc. By deleting in its entirety the last sentence of the  definition of
"Qualified  Domestic  Receivables"  appearing  in  Section  7.1  of  the  Letter
Agreement and by substituting in its stead the following:

               "In  addition,  so  long as the  Tribe  Guaranty  and  the  Tribe
               Security  Agreement are in full force and effect and the Bank has
               a fully  perfected  first  priority  security  interest in all of
               Tribe's Receivables,  term `Qualified Domestic  Receivables' will
               be deemed to include such  Receivables  (the `Tribe  Intercompany
               Receivables')  as are  now or  hereafter  owed  by  Tribe  to the
               Borrower (even though such Tribe  Intercompany  Receivables would
               otherwise be excluded as being  amounts owed to the Borrower by a
               related entity) to the extent, but only to the extent,  that such
               Tribe  Intercompany   Receivables  arise  out  of  sales  of  the
               Borrower's products made by Tribe to unrelated customers and that
               the  Receivables  of Tribe  (the  `Matching  Tribe  Receivables')
               generated by such sales satisfy all of the requirements set forth
               in  the  immediately  preceding  two  sentences  to be  Qualified
               Domestic Receivables,  except that such Matching Tribe Receivable
               will not be owned by the Borrower."

        ddd. By deleting in its entirety the  definition of  "Qualified  Foreign
Receivables"   appearing  in  Section  7.1  of  the  Letter   Agreement  and  by
substituting in its stead the following:

               "`Qualified  Insured Foreign  Receivables' - Those Receivables of
               the Borrower which satisfy all of the criteria set forth above to
               be Qualified Domestic Receivables other than the requirement that
               the relevant  customer be located in the United States;  provided
               that each such Qualified Insured Foreign  Receivable is supported
               by credit insurance issued by an insurer satisfactory to the Bank
               and containing terms and conditions  satisfactory to the Bank. In
               addition,  so  long  as the FSC  Guaranty  and  the FSC  Security
               Agreement  are in full  force and effect and the Bank has a fully
               perfected  first  priority  security  interest  in all  of  FSC's
               Receivables,  the term `Qualified  Insured  Foreign  Receivables'
               will be deemed to include such Receivables (the `FSC Intercompany
               Receivables') as are now or hereafter owed by FSC to the Borrower
               (even though such FSC Intercompany Receivables are not themselves
               insured and would  otherwise be excluded as being amounts owed to
               the Borrower by a related entity) to the extent,  but only to the
               extent, that the FSC Intercompany  Receivables arise out of sales
               of the Borrower's products made by FSC to unrelated customers and
               that the  Receivables  of FSC (the  `Matching  FSC  Receivables')
               generated  by  such  sales  are  insured  with  credit  insurance
               satisfactory   to  the  Bank  and   satisfy   all  of  the  other
               requirements  set forth  above to be  Qualified  Insured  Foreign
               Receivables,  except that such Matching FSC Receivables  will not
               be owned by the Borrower.  Amounts included in Qualified  Insured
               Foreign Receivables will in no event be `double counted' with any
               amounts includable in Qualified Domestic Receivables."

        eee.   By inserting  into Section 7.1 of the Letter  Agreement 
immediately  after the definition of "Tribe", the following:

               "`Tribe Guaranty' - As defined in ss.1.1 above.

               `Tribe Security Agreement' - As defined in ss.1.1 above."

        fff.   By adding to  Article  VII of the Letter  Agreement,  at the end 
thereof,  the following:

               "7.2. Security Agreement. (a) Each of the Borrower, FSC and Tribe
               acknowledges and agrees that the  `Obligations'  described in and
               secured by the Security Agreement, the FSC Security Agreement and
               the Tribe Security Agreement include, without limitation,  all of
               the  obligations  of the Borrower under the Revolving Note and/or
               this letter agreement and/or with respect to any Foreign Exchange
               Contracts.

                      (b)  Each of the  Security  Agreement,  the  FSC  Security
               Agreement and the Tribe Security  Agreement is hereby modified to
               provide as follows:

                      (i)  That  the  `Collateral'   subject  thereto  includes,
               without  limitation and in addition to the  Collateral  described
               therein,  all of the  Borrower's,  FSC's and Tribe's (as the case
               may be) files, books and records (including,  without limitation,
               all  electronically  recorded  data)  all  whether  now  owned or
               existing or hereafter acquired,  created or arising.  Each of the
               Borrower,  FSC and Tribe  hereby  grants  to the Bank a  security
               interest in all such  Collateral  in order to secure the full and
               prompt payment and performance of all of the Obligations.

                      (ii) That, upon the occurrence of any Event of Default (as
               defined in ss.5.1 of this letter agreement), the Bank may, at any
               time,  without  further  notice  to the  Borrower,  FSC or Tribe,
               notify  account  debtors that the Collateral has been assigned to
               the Bank and that payments by such account  debtors shall be made
               directly  to the Bank.  At any time  after the  occurrence  of an
               Event of Default, the Bank may collect the Borrowers',  FSC's and
               Tribe's  Receivables,  or  any of  same,  directly  from  account
               debtors and may charge the  collection  costs and expenses to the
               Borrower."

        ggg.   By adding to the Letter  Agreement,  as an exhibit thereto,  Item
2.1(j) in the form attached to this Agreement.

        3. Each of Tribe and FSC hereby  joins in the Letter  Agreement  for the
purposes  described  in  Paragraph  2fff  above and each of Tribe and FSC hereby
grants to the Bank,  in order to secure the  Obligations  (as  described in said
Paragraph 2fff above),  a security  interest in and to all of the Collateral (as
described in said Paragraph 2fff above).

        4. Wherever in any Financing Document,  or in any certificate or opinion
to be  delivered  in  connection  therewith,  reference  is  made  to a  "letter
agreement"  or to the  "Letter  Agreement",  from and after the date hereof same
will be deemed to refer to the Letter Agreement, as hereby amended.

        5. Simultaneously with the execution and delivery of this Agreement, the
Borrower is executing and delivering to the Bank the November Revolving Note, in
substitution  for the January  Revolving Note. The November  Revolving Note is a
$5,000,000  promissory note of the Borrower,  substantially in the form attached
hereto as  Exhibit  1.  Wherever  in any of the  Financing  Documents  or in any
certificate  or opinion to be delivered in  connection  therewith,  reference is
made to a "Revolving  Note",  from and after the date hereof same will be deemed
to refer to the November Revolving Note.

        6. Each of Tribe and FSC  confirms  that each of the Tribe  Guaranty and
the FSC Guaranty, respectively, remains in full force and effect and guarantees,
inter alia,  payment and performance of the Letter Agreement (as hereby amended)
and the November Revolving Note.

        7. In  order  to  induce  the Bank to enter  into  this  Agreement,  the
Borrower further represents and warrants as follows:

        a. The  execution,  delivery  and  performance  of this  Agreement,  the
November  Revolving  Note  and  the  Zoom  Security  Agreement  have  been  duly
authorized by the Borrower by all necessary corporate and other action, will not
require the consent of any third party and will not conflict  with,  violate the
provisions of, or cause a default or constitute an event which, with the passage
of time or the  giving of notice or both,  could  cause a default on the part of
the  Borrower  under its  charter  documents  or by-laws or under any  contract,
agreement, law, rule, order, ordinance, franchise, instrument or other document,
or result in the imposition of any lien or  encumbrance  (except in favor of the
Bank) on any property or assets of the  Borrower.  The  execution,  delivery and
performance  of this  Agreement  and the FSC Security  Agreement  have been duly
authorized by FSC by all necessary  corporate and other action, will not require
the  consent  of any  third  party  and  will not  conflict  with,  violate  the
provisions of, or cause a default or constitute an event which, with the passage
of time or the  giving of notice or both,  could  cause a default on the part of
FSC under its charter  documents  or by-laws or under any  contract,  agreement,
law, rule, order, ordinance,  franchise, instrument or other document, or result
in the  imposition of any lien or  encumbrance  (except in favor of the Bank) on
any property or assets of FSC. The execution,  delivery and  performance of this
Agreement and the Tribe Security Agreement have been duly authorized by Tribe by
all necessary  corporate  and other action,  will not require the consent of any
third party and will not conflict  with,  violate the  provisions of, or cause a
default or constitute an event which,  with the passage of time or the giving of
notice or both,  could  cause a default on the part of Tribe  under its  charter
documents  or  by-laws  or under any  contract,  agreement,  law,  rule,  order,
ordinance,  franchise, instrument or other document, or result in the imposition
of any lien or  encumbrance  (except  in favor of the Bank) on any  property  or
assets of Tribe.

        b. The Borrower has duly executed and delivered each of this  Agreement,
the  November  Revolving  Note and the  Zoom  Security  Agreement.  FSC has duly
executed and delivered  each of this  Agreement and the FSC Security  Agreement.
Tribe has duly  executed  and  delivered  each of this  Agreement  and the Tribe
Security Agreement.

        c. Each of this  Agreement,  the  November  Revolving  Note and the Zoom
Security  Agreement is the legal,  valid and binding obligation of the Borrower,
enforceable  against the Borrower in accordance with its respective  terms. Each
of this Agreement and the FSC Security Agreement is the legal, valid and binding
obligation of FSC,  enforceable  against FSC in accordance  with its  respective
terms.  Each of this  Agreement and the Tribe  Security  Agreement is the legal,
valid and binding obligation of Tribe,  enforceable  against Tribe in accordance
with its respective terms.

        d. The  statements,  representations  and warranties  made in the Letter
Agreement,  in the Tribe  Guaranty  and/or in the FSC  Guaranty  continue  to be
correct as of the date hereof; except as amended, updated and/or supplemented by
the attached Supplemental Disclosure Schedule.

        e.  Giving  effect  to  the  foregoing  amendments,  the  covenants  and
agreements of the Borrower,  FSC and/or Tribe contained in the Letter Agreement,
in the Zoom  Security  Agreement,  in the FSC Security  Agreement,  in the Tribe
Security  Agreement,  in the FSC Guaranty and/or in the Tribe Guaranty have been
complied with on and as of the date hereof.

        f. Giving effect to the foregoing amendments, no event which constitutes
or which, with notice or lapse of time, or both, could  constitute,  an Event of
Default (as defined in the Letter Agreement) has occurred and is continuing.

        g.  Except for certain  losses  heretofore  disclosed  in writing to the
Bank, no material adverse change has occurred in the financial  condition of the
Borrower  from that  disclosed  in the  quarterly  financial  statements  of the
Borrower dated June 30, 1997, heretofore furnished to the Bank.

        8. As a further inducement to the Bank to enter into this Agreement,  on
or about the date  hereof the  Borrower  is paying to the Bank a  non-refundable
amendment fee of $5,000. This fee is in addition to, and is not to be reduced by
nor applied against,  any other fees, interest or other payments now, heretofore
or  hereafter  paid or payable  by the  Borrower  to the Bank under the  January
Revolving Note, the November  Revolving Note, the Letter  Agreement or any other
Financing Documents.

        9. Except as expressly affected hereby, the Letter Agreement and each of
the other Financing Documents remains in full force and effect as heretofore.

        10. Nothing  contained herein will be deemed to constitute a waiver or a
release of any provision of any of the Financing  Documents.  Nothing  contained
herein will in any event be deemed to  constitute  an agreement to give a waiver
or release or to agree to any amendment or  modification of any provision of any
of the Financing Documents on any other or future occasion.

        Executed,  as an  instrument  under  seal,  as of the day and year first
above written.

                                                   ZOOM TELEPHONICS, INC.


                                                   By:       /s/ Robert A. Crist
                                                      Name: Robert A. Crist
                                                      Title: V.P. Finance & CFO


                                                   By:         /s/ Frank Manning
                                                      Name: Frank Manning
                                                      Title: President & CEO
Accepted and agreed:
FLEET NATIONAL BANK


By:              /s/ Kimberly Martone
    Name: Kimberly Martone
    Title: Vice President

Agreed (as to Sections 3 and 6 above):

ZOOM TELEPHONICS FOREIGN
  SALES CORPORATION


By:            /s/ Frank Manning
     Name: Frank Manning
     Title: President & CEO


TRIBE COMPUTER WORKS, INCORPORATED



By:            /s/ Frank Manning
     Name: Frank Manning
     Title: President & CEO





Exhibit  10.7.  Amended and Restated  Promissory  Note issued by the Company in
                favor of Fleet National Bank

                      AMENDED AND RESTATED PROMISSORY NOTE



$5,000,000.00                                              Boston, Massachusetts
                                                               November 13, 1997

        FOR VALUE RECEIVED,  the undersigned Zoom Telephonics,  Inc., a Delaware
corporation  (the  "Borrower")  hereby  promises  to pay to the  order  of FLEET
NATIONAL  BANK (the  "Bank")  the  principal  amount of Five  Million and 00/100
($5,000,000.00) Dollars or such portion thereof as may have been advanced by the
Bank or may hereafter be advanced by the Bank pursuant to ss.1.1 of that certain
letter  agreement  dated  January 17, 1997 between the Borrower and the Bank, as
amended (as so amended,  the "Letter  Agreement") and remains  outstanding  from
time to time hereunder ("Principal"), with interest, at the rate hereinafter set
forth, on the daily balance of all unpaid Principal,  from the date hereof until
payment in full of all Principal and interest hereunder.

        Interest on all unpaid  Principal  shall be due and  payable  monthly in
arrears, on the first day of each month, commencing on the first such date after
the  advance  of any  Principal  and  continuing  on the first day of each month
thereafter  and on the date of  payment of this note in full,  at a  fluctuating
rate per annum  (computed  on the basis of a year of three  hundred  sixty (360)
days for the actual number of days elapsed) which shall at all times be equal to
the Prime Rate, as in effect from time to time (but in no event in excess of the
maximum rate permitted by then  applicable  law), with a change in the aforesaid
rate of interest to become  effective on the same day on which any change in the
Prime Rate or in the Rate Increment is effective.  Overdue Principal and, to the
extent  permitted by law,  overdue interest shall bear interest at a fluctuating
rate per  annum  which at all  times  shall be equal to the sum of (i) four (4%)
percent per annum plus (ii) the per annum rate otherwise payable under this note
(but in no event in excess of the  maximum  rate  permitted  by then  applicable
law),  compounded  monthly and payable on demand.  As used herein,  "Prime Rate"
means the variable  rate of interest per annum  designated by the Bank from time
to time as its  prime  rate,  it being  understood  that  such  rate is merely a
reference rate and does not necessarily  represent the lowest or best rate being
charged to any customer.  If the entire amount of any required  Principal and/or
interest  is not paid within ten (10) days after the same is due,  the  Borrower
shall  pay to the Bank a late fee  equal to five  percent  (5%) of the  required
payment,  provided  that such late fee shall be reduced to three percent (3%) of
any required Principal and interest that is not paid within fifteen (15) days of
the date it is due if this note is secured by a  mortgage  on an  owner-occupied
residence of 1-4 units.

        All outstanding  Principal and all interest accrued thereon shall be due
and payable in full on the first to occur of: (i) an  acceleration  under ss.5.2
of the Letter Agreement or (ii) September 30, 1998. The Borrower may at any time
and from time to time  prepay  all or any  portion  of said  Principal,  without
premium  or  penalty.  Under  certain  circumstances  set  forth  in the  Letter
Agreement, prepayments of Principal may be required.

        Payments of both  Principal and interest  shall be made, in lawful money
of the United States in immediately  available  funds, at the office of the Bank
located  at 75 State  Street,  Boston,  Massachusetts  02109,  or at such  other
address as the Bank may from time to time designate.

        The  undersigned  Borrower  irrevocably  authorizes  the Bank to make or
cause to be made,  on a  schedule  attached  to this note or on the books of the
Bank, at or following  the time of making any Revolving  Loan (as defined in the
Letter  Agreement)  and of receiving  any payment of Principal,  an  appropriate
notation  reflecting such  transaction and the then aggregate  unpaid balance of
Principal.  Failure of the Bank to make any such  notation  shall not,  however,
affect any obligation of the Borrower  hereunder or under the Letter  Agreement.
The unpaid  Principal  amount of this note, as recorded by the Bank from time to
time on such schedule or on such books, shall, in the absence of manifest error,
constitute  presumptive evidence of the aggregate unpaid principal amount of the
Revolving Loans.

        The  Borrower  hereby (a) waives  notice of and  consents to any and all
advances,  settlements,  compromises, favors and indulgences (including, without
limitation,  any extension or postponement of the time for payment), any and all
receipts,  substitutions,  additions,  exchanges and releases of collateral, and
any and all  additions,  substitutions  and releases of any person  primarily or
secondarily  liable, (b) waives  presentment,  demand,  notice,  protest and all
other demands and notices generally in connection with the delivery, acceptance,
performance, default or enforcement of or under this note, and (c) agrees to pay
all reasonable costs and expenses,  including,  without  limitation,  reasonable
attorneys'  fees,  incurred or paid by the Bank in  enforcing  this note and any
collateral or security therefor, all whether or not litigation is commenced.

        This note is the  Revolving  Note  referred to in the Letter  Agreement.
This note amends and restates in its entirety that certain promissory note dated
January 17, 1997 in the face principal amount of $10,000,00 made by the Borrower
and  payable to the order of the Bank.  This note is secured by, and is entitled
to the benefits of, the Security Agreement (as defined in the Letter Agreement).
This note is subject to  prepayment  as set forth in the Letter  Agreement.  The
maturity  of this note may be  accelerated  upon the  occurrence  of an Event of
Default, as provided in the Letter Agreement.

        THE BORROWER HEREBY KNOWINGLY,  VOLUNTARILY AND INTENTIONALLY WAIVES THE
RIGHT TO A TRIAL BY JURY IN RESPECT  OF ANY CLAIM  BASED ON THIS NOTE OR ARISING
OUT OF, UNDER OR IN CONNECTION WITH THIS NOTE OR ANY RELATED DOCUMENTS OR OUT OF
ANY COURSE OF CONDUCT,  COURSE OF DEALING,  STATEMENTS (WHETHER ORAL OR WRITTEN)
OR ACTIONS OF ANY PERSON.  THIS WAIVER CONSTITUTES A MATERIAL INDUCEMENT FOR THE
BANK TO ACCEPT THIS NOTE AND TO MAKE THE REVOLVING  LOANS AS CONTEMPLATED IN THE
LETTER AGREEMENT.


        Executed,  as an  instrument  under  seal,  as of the day and year first
above written.


CORPORATE SEAL                              ZOOM TELEPHONICS, INC.


ATTEST:

By:         /s/ Peter Kramer
Title: Secretary
                                                   By:  /s/ Robert A. Crist
                                                      Name: Robert A. Crist
                                                      Title: V.P. Finance & CFO




By:         /s/ Frank Manning
Name: Frank Manning
Title: President & CEO



Exhibit 10.8.  Security Agreement between the Company and Fleet National Bank



                     Inventory and Accounts Receivable Security Agreement
                                  (Short Form)

                                November 13, 1997
                                      Date

To  secure  the  due  payment  and  performance  of all of the  liabilities  and
obligations  hereunder of the undersigned,  herein called  "Borrower",  to Fleet
National  Bank ,  hereinafter  called  "Bank",  and all  other  liabilities  and
obligations of Borrower to Bank of every name and nature  whatsoever,  direct or
indirect, absolute or contingent, now existing or hereafter arising or acquired,
including,   without  limitation,   the  due  payment  and  performance  of  all
liabilities and  obligations  under any and all notes,  all  hereinafter  called
"Obligations", the Borrower hereby grants to Bank a continuing security interest
in:

        (a) All accounts,  contracts,  contract rights,  notes,  bills,  drafts,
acceptances,  general intangibles, (other than general intangibles which consist
of patents,  trademarks,  copyrights  and other similar  intellectual  property)
choses in action, and all other debts, obligations and liabilities,  in whatever
form, owing to Borrower from any person, firm or corporation, or any other legal
entity,  whether now existing or hereafter arising, now or hereafter received by
or belonging or owing to Borrower, for goods sold by it or for services rendered
by it or  however  otherwise  same may have been  established  or  created,  all
guarantees and securities therefor, all right, title and interest of Borrower in
the  merchandise  or services  which gave rise thereto,  including the rights of
reclamation  and  stoppage  in  transit,  all  rights  of an  unpaid  seller  of
merchandise  or  services,  and  in the  proceeds  thereof,  including,  without
limitation,  all  proceeds  of  credit,  fire or  other  insurance,  and any tax
refunds.

        (b) All goods,  merchandise,  raw materials,  goods and work in process,
finished  goods and other  tangible  personal  property,  now owned or hereafter
acquired  and held for sale or lease,  or  furnished  or to be  furnished  under
contract of  service,  or used or consumed  in  Borrower's  business  and in the
products and proceeds thereof,  including,  without limitation,  all proceeds of
fire or other insurance. This portion of the collateral being sometimes referred
to as "Inventory".

All of the accounts and other  property as set forth in (a) above and  inventory
as  set  forth  in  (b)  above  are  hereinafter  referred  to  collectively  as
"Collateral".

The Collateral  and all proceeds and products  thereof shall be security for all
Obligations.  Until all Obligations have been fully  satisfied,  Bank's security
interest in the Collateral and all proceeds and products thereof, shall continue
in full  force and effect and Bank will at all times  after the  occurrence  and
during  the  continuance  of an Event  of  Default  (as  defined  in the  Letter
Agreement between Bank and Borrower) have the right to take physical  possession
of the Inventory and to maintain  such  possession on Borrower's  premises or to
remove  the  Inventory  or any part  thereof  to such  other  places as Bank may
desire.  If Bank  exercises  Bank's right to take  possession of the  Inventory,
Borrower shall, upon Bank's demand, assemble the Inventory and make it available
to Bank at a place reasonably convenient to Bank.

If Borrower shall fail to pay, when due, any of the Obligations or shall fail to
observe  or  perform  any of the  provisions  of  this  Agreement  or any  other
agreement  now or hereafter  entered into  between Bank and  Borrower,  Borrower
shall be in default  hereunder.  In the event of such default all Obligations of
Borrower to Bank shall,  at the option of Bank,  and without notice to or demand
upon Borrower  become and be immediately  due and payable and thereupon Bank may
exercise any and all rights and remedies of a secured party  available under the
Uniform Commercial Code and all other applicable law.

Borrower  represents,  warrants and covenants  that all inventory is and will be
owned by Borrower,  free of all other liens and encumbrances,  and shall be kept
by  Borrower  at 207  South  Street,  Boston,  MA 02111  or at one of the  other
locations  shown on the Disclosure  Schedules  attached to the aforesaid  Letter
Agreement and that Borrower  shall not (without  Bank's prior written  approval)
remove the Inventory  therefrom  except for the purposes of sale in the ordinary
course of business.

Except for sales made in the  ordinary  course of business,  Borrower  shall not
sell,  encumber,  grant a security interest in or dispose of or permit the sale,
encumbrance or disposal of any Collateral  without Bank's prior written consent.
A sale in the ordinary  course of business shall not include a transfer in total
or partial satisfaction of a debt.

Borrower  shall  perform any and all steps  requested by Bank to perfect  Bank's
security interest in the Collateral,  such as leasing  warehouses to Bank or its
designee,  placing and maintaining signs,  appointing custodians,  executing and
filing financing or continuation  statements in form and substance  satisfactory
to Bank. If any  Inventory is in the  possession or control of any of Borrower's
agents or processors,  Borrower shall notify such agents or processors of Bank's
interest therein,  and upon request instruct them to hold all such Inventory for
Bank's  account and subject to Bank's  instructions.  A physical  listing of all
Inventory, where located, shall be taken by Borrower whenever requested by Bank,
and a copy of each such  physical  listing  shall be supplied to Bank.  Bank may
examine and inspect the Inventory at any time.

Borrower agrees to keep all the Inventory  insured with coverage and amounts not
less than that  usually  carried by one  engaged in a like  business  and in any
event not less  than that  required  by Bank with loss  payable  to the Bank and
Borrower,  as their interests may appear, hereby appointing Bank as attorney for
Borrower in obtaining,  adjusting,  settling and  cancelling  such insurance and
endorsing any drafts.  All premiums on such insurance  shall be paid by Borrower
and the policies delivered to Bank. If Borrower fails to do so, Bank may procure
such  insurance  and  charge the cost to  Borrower's  loan  account.  As further
assurance for the payment and  performance of the  Obligations,  Borrower hereby
assigns to Bank all sums  including  returned  or unearned  premiums,  which may
become  payable  under any policy of  insurance on the  Collateral  and Borrower
hereby directs each insurance company issuing any such policy to make payment of
such sums directly to Bank.

If in the  event  of the  sale  of  the  Collateral  the  proceeds  thereof  are
insufficient to pay all amounts to which Bank is legally entitled, Borrower will
be liable for the deficiency,  together with interest thereon and the reasonable
fees of any attorney employed by Bank to collect such deficiency.

Bank shall  have the right to  enforce  any  remedies  hereunder  alternatively,
successively or concurrently. A waiver of any default of Borrower shall not be a
waiver of any subsequent,  similar or other default. No delay in the exercise of
any of Bank's  rights or remedies  hereunder  shall  constitute a waiver of such
right or remedy or of any other right or remedy.

This Agreement  shall not be construed to be in limitation of or in substitution
for any other grant of security  interest from Borrower to Bank made prior to or
contemporaneously  herewith, and no other such grant of a security interest made
subsequent  to  or  contemporaneously  herewith  shall  be  construed  to  be in
limitation  of or in  substitution  for  this  Agreement  unless  expressly  and
specifically provided therein.

This Agreement  shall take effect as a sealed  instrument,  shall be governed by
and construed according to the laws of the Commonwealth of Massachusetts,  shall
be binding upon the heirs, executors, administrators,  successors and assigns of
Borrower and shall inure to the benefit of the successors and assigns of Bank.

Witnessed by:                                 ZOOM TELEPHONICS, INC.

                                              /s/ Robert A. Crist
                                              V.P. Finance & CFO, Borrower


                                              By: /s/ Frank Manning
FLEET NATIONAL BANK                               Its President & CEO, Title

                                              Address:  207 South Street
                                                              Number and Street
By:  /s/ Kimberly Martone
    Its  Vice  President,   High  Technology                   Boston, MA  02111
                                              ----------------------------------
    Division                                              City, County and State

**or at one of the other locations shown on the Disclosure Schedules attached to
the aforesaid Letter Agreement.



Exhibit 10.9.  Employment Agreement


May 23, 1997

                 Employment Agreement Between Zoom Telephonics and Bob Crist

Zoom Telephonics  will hire Bob Crist as VP-Chief  Financial  Officer  effective
July 1, 1997. The salary is $130,000 per year. Zoom will provide a parking space
near Zoom.  After Bob joins Zoom,  he will get options for 30,000  shares at the
market price based on the closing price of the prior day, and he will  determine
what day they are issued.  Options  will be normal Zoom  options:  35% vest in 1
year, 35% vest more in 2 years, and 30% more in 3.5 years, with the expiration 4
years  after the grant  date.  In  addition,  Bob will get 30,000 more shares in
September 1998, assuming he is still employed at Zoom.

In the event of a change of control,  all issued and  outstanding  options  will
automatically  vest,  to be  exercised  at the grant price within 30 days of the
change of control. In addition,  if (i) Bob is terminated without cause within 6
months after change of control,  or (ii) Bob leaves the company  within 6 months
after change in control (ie: including but not limited to no longer reporting to
the CEO, COO, or President of the acquiring company; or no longer reported to by
the financial employees who had reported to Bob or their replacements), Bob will
receive 6 months salary as severance.

Zoom has the right to terminate Bob's employment at will. In the event of Zoom's
terminating  Bob's employment for some other reason other than cause or a change
of  control,  the  following  will  happen:  18  month's  worth  of  issued  and
outstanding  options will vest, but the number of  automatically  vested options
shall not  exceed  20,000.  The  options  may be  exercised  up to 30 days after
employment ends. In addition, Zoom will pay to Bob 3 months severance.

Reasons for terminating for cause attached.

Bob will also receive  Zoom's normal benefit  package,  and will receive 3 weeks
vacation per year during his first 9 months of employment, and 4 weeks for later
years.

The duties of the job have been  discussed.  Some important areas include public
and internal  reporting,  budgeting  and control,  asset  management,  financial
planning, taxes, corporate structure, and the protection of the Company's assets
and interests.

Agreed:

/s/ Frank Manning                                          /s/ Robert A. Crist
     President                                                    Bob Crist




Exhibit 11.  Statement re: computation of per share income (loss)

<TABLE>
<CAPTION>


                              1995                    1996                      1997
                     ---------------------    ---------------------     ------------
                      Basic       Diluted       Basic      Diluted       Basic      Diluted

<S>                    <C>          <C>          <C>         <C>          <C>          <C>         
Net income (loss)      $ 6,063,080  $ 6,063,080  $2,479,922  $ 2,479,922  $(7,132,161) $(7,132,161)
                         =========    =========   =========    =========   ===========  ===========

Weighted average
   number of shares
   outstanding           6,074,788    6,074,788   7,068,314    7,068,314    7,468,758    7,468,758
Incremental shares
   from the assumed
   exercise of dilutive
   stock options                -       383,291         -        121,027         -            -
Common shares
   assumed to have
   been repurchased,
   treasury stock method        -      (284,814)        -        (26,950)        -            -
Weighted average
   common and common
   equivalent shares
   outstanding           6,074,788    6,173,265   7,068,314    7,162,391    7,468,758   7,468,758
                         =========    =========   =========    =========    =========   =========
Net income (loss)
   per share           $      1.00  $       .98  $      .35 $        .35  $      (.95)  $    (.95)
                              ====          ===          ===         ===         =====       =====

</TABLE>


Exhibit 21.  Subsidiaries of Zoom



                              LIST OF SUBSIDIARIES

Zoom Telephonics, Inc., a Delaware corporation

Zoom Telephonics Foreign Sales Corporation, a U.S. Virgin Islands corporation

Zoom Telephonics, Ltd., a United Kingdom corporation

Tribe Acquisition Corporation, a Delaware corporation



Exhibit 23.  Consent of KPMG Peat Marwick LLP




                         CONSENT OF INDEPENDENT AUDITORS



The Board of Directors;
Zoom Telephonics, Inc.


The audits  referred to in our report  dated  February  13,  1998,  included the
related  financial  statement  schedule for each of the years in the  three-year
period ended December 31, 1997,  included in the annual report on Form 10-K. The
financial statement schedule is the responsibility of the Company's  management.
Our responsibility is to express an opinion on the financial  statement schedule
based on our audits. In our opinion,  such financial  statement  schedule,  when
considered  in  relation  to the basic  financial  statements  taken as a whole,
presently fairly in all material respects the information set forth therein.

We consent to  incorporation  by reference in the  registration  statements (No:
33-42834 and No. 33-90930) on Form S-8 of Zoom  Telephonics,  Inc. of our report
dated  February 13, 1998,  relating to the  consolidated  balance sheets of Zoom
Telephonics,  Inc. and  subsidiaries  as of December 31, 1997 and 1996,  and the
related consolidated  statements of operations,  stockholders'  equity, and cash
flows and related schedule for each of the years in the three-year  period ended
December 31, 1997,  which report  appears in the December 31, 1997 annual report
on Form 10-K of Zoom Telephonics, Inc.




                                                   KPMG Peat Marwick LLP




Boston, Massachusetts
March 31, 1998


<TABLE> <S> <C>


<ARTICLE>                    5
<MULTIPLIER>                 1
<CURRENCY>                   USD
       
   <S>                                                 <C>

   <PERIOD-TYPE>                                               Year
   <FISCAL-YEAR-END>                                    Dec-31-1997
   <PERIOD-START>                                       Jan-01-1997
   <PERIOD-END>                                         Dec-31-1997
   <EXCHANGE-RATE>                                                1
   <CASH>                                                11,281,337
   <SECURITIES>                                                   0
   <RECEIVABLES>                                         13,365,413
   <ALLOWANCES>                                           4,518,206
   <INVENTORY>                                           12,034,349
   <CURRENT-ASSETS>                                      43,076,240
   <PP&E>                                                 3,967,767
   <DEPRECIATION>                                           951,553
   <TOTAL-ASSETS>                                        48,515,273
   <CURRENT-LIABILITIES>                                  8,012,678
   <BONDS>                                                        0
                                             0
                                                       0
   <COMMON>                                              25,170,267
   <OTHER-SE>                                            15,332,328
   <TOTAL-LIABILITY-AND-EQUITY>                          48,515,273
   <SALES>                                               80,035,116
   <TOTAL-REVENUES>                                      64,478,457
   <CGS>                                                 56,298,264
   <TOTAL-COSTS>                                         20,198,594
   <OTHER-EXPENSES>                                         740,953
   <LOSS-PROVISION>                                               0
   <INTEREST-EXPENSE>                                      (503,680)
   <INCOME-PRETAX>                                      (11,321,427)
   <INCOME-TAX>                                          (4,189,266)
   <INCOME-CONTINUING>                                   (7,132,161)
   <DISCONTINUED>                                                 0
   <EXTRAORDINARY>                                                0
   <CHANGES>                                                      0
   <NET-INCOME>                                          (7,132,161)
   <EPS-PRIMARY>                                              (0.95)
   <EPS-DILUTED>                                              (0.95)

        

</TABLE>

<TABLE> <S> <C>


<ARTICLE>                     5
<MULTIPLIER>                  1
<CURRENCY>                  USD
       
   <S>                                                 <C>
   <PERIOD-TYPE>                                              Year
   <FISCAL-YEAR-END>                                   Dec-31-1996
   <PERIOD-START>                                      Jan-01-1996
   <PERIOD-END>                                        Dec-31-1996
   <EXCHANGE-RATE>                                               1
   <CASH>                                                9,172,186
   <SECURITIES>                                                  0
   <RECEIVABLES>                                        18,970,041
   <ALLOWANCES>                                          3,564,101
   <INVENTORY>                                          19,057,575
   <CURRENT-ASSETS>                                     50,984,293
   <PP&E>                                                4,081,406
   <DEPRECIATION>                                        1,971,787
   <TOTAL-ASSETS>                                       56,782,154
   <CURRENT-LIABILITIES>                                 9,427,197
   <BONDS>                                                       0
                                            0
                                                      0
   <COMMON>                                             24,890,468
   <OTHER-SE>                                           22,464,489
   <TOTAL-LIABILITY-AND-EQUITY>                         56,782,154
   <SALES>                                             116,569,378
   <TOTAL-REVENUES>                                    100,195,021
   <CGS>                                                79,803,297
   <TOTAL-COSTS>                                        16,829,815
   <OTHER-EXPENSES>                                        292,514
   <LOSS-PROVISION>                                              0
   <INTEREST-EXPENSE>                                      169,248
   <INCOME-PRETAX>                                       3,854,423
   <INCOME-TAX>                                          1,374,501
   <INCOME-CONTINUING>                                   2,479,922
   <DISCONTINUED>                                                0
   <EXTRAORDINARY>                                               0
   <CHANGES>                                                     0
   <NET-INCOME>                                          2,479,922
   <EPS-PRIMARY>                                              0.35
   <EPS-DILUTED>                                              0.35
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE>                     5
<MULTIPLIER>                  1
<CURRENCY>                  USD

       
   <S>                                                <C>
   <PERIOD-TYPE>                                             Year
   <FISCAL-YEAR-END>                                  Dec-31-1995
   <PERIOD-START>                                     Jan-01-1995
   <PERIOD-END>                                       Dec-31-1995
   <EXCHANGE-RATE>                                              1
   <CASH>                                                 150,671
   <SECURITIES>                                                 0
   <RECEIVABLES>                                       20,396,314
   <ALLOWANCES>                                         2,717,463
   <INVENTORY>                                         24,173,557
   <CURRENT-ASSETS>                                    46,455,910
   <PP&E>                                               3,138,907
   <DEPRECIATION>                                         598,013
   <TOTAL-ASSETS>                                      49,594,817
   <CURRENT-LIABILITIES>                               22,320,673
   <BONDS>                                                      0
                                           0
                                                     0
   <COMMON>                                             7,289,577
   <OTHER-SE>                                          19,984,567
   <TOTAL-LIABILITY-AND-EQUITY>                        49,594,817
   <SALES>                                            107,409,953
   <TOTAL-REVENUES>                                    96,997,313
   <CGS>                                               73,401,620
   <TOTAL-COSTS>                                       13,698,700
   <OTHER-EXPENSES>                                       (33,313)
   <LOSS-PROVISION>                                             0
   <INTEREST-EXPENSE>                                     (81,893)
   <INCOME-PRETAX>                                      9,863,680
   <INCOME-TAX>                                         3,800,000
   <INCOME-CONTINUING>                                  6,063,680
   <DISCONTINUED>                                               0
   <EXTRAORDINARY>                                              0
   <CHANGES>                                                    0
   <NET-INCOME>                                         6,063,680
   <EPS-PRIMARY>                                             1.00
   <EPS-DILUTED>                                              .98

        

</TABLE>


                                                                    Schedule II




                             ZOOM TELEPHONICS, INC.
                        VALUATION AND QUALIFYING ACCOUNTS
                   Years ending December 31, 1995, 1996, 1997

<TABLE>
<CAPTION>

                                   Balance at                                         Balance
                                   beginning         Charged to      Amounts          at end
        Description                of year           expense        written off       of year
- ----------------------------------------------------------------------------------------------

<S>                              <C>               <C>            <C>              <C>        
Reserve for doubtful accounts    $    254,000      $   770,000    $     175,124    $   848,876
Reserve for price protection          758,788        2,228,039        2,486,110        500,717
Reserve for sales returns             530,649          400,000          210,153        720,496
Other allowances                      644,027        1,463,933        1,460,586        647,374
                                    ---------        ---------        ---------        -------
Year ending December 31, 1995    $  2,187,464      $ 4,861,972    $   4,331,973    $ 2,717,463
                                    =========        =========        =========      =========

Reserve for doubtful accounts    $    848,876      $   400,000    $     165,568    $ 1,083,308
Reserve for price protection          500,717        3,536,410        3,328,531        708,596
Reserve for sales returns             720,496                -              442        720,054
Other allowances                      647,374        1,855,183        1,450,414      1,052,143
                                      -------        ---------        ---------      ---------
Year ending December 31, 1996    $  2,717,463  $     5,791,593    $   4,944,955    $ 3,564,101
                                    =========        =========        =========      =========

Reserve for doubtful accounts    $  1,083,308  $     2,631,782    $   3,248,060    $   467,030
Reserve for price protection          708,596        5,965,245        5,367,363      1,306,478
Reserve for sales returns             720,054          626,426          314,841      1,031,639
Other allowances                    1,052,143        3,531,766        2,870,850      1,713,059
                                    ---------        ---------        ---------      ---------
Year ending December 31, 1997    $  3,564,101  $    12,755,219    $  11,801,114    $ 4,518,206
                                   ==========       ==========       ==========      =========

</TABLE>



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