June 30, 2000




Mr. Richard Kumpf
12 Whidhita Road
Medfield, MA 02052

Dear Richard:

     I am pleased to offer you the position of Vice President of Engineering
with Zoom Telephonics, Inc. (hereafter referred to as the Company). The details
of the offer are listed below:

     o    $150,000 annual starting salary.

     o    $40,000 starting bonus.

     o    $20,000 end-of-year performance-based bonus.

     o    Issuance of Shares of Common Stock. Employee will be entitled to
          purchase that number of shares of the Company's Common Stock equal to
          $150,000 divided by the closing price of the Common Stock as quoted
          on the Nasdaq National Market on Employee's first day of work with
          the Company (the "Shares"). The purchase price for the Shares will be
          $.01 per share (the "Purchase Price"). The Shares will be subject to
          the terms of a restricted stock repurchase agreement pursuant to
          which the Company will have the option to repurchase the Shares from
          the Employee for the original Purchase Price if the Employee ceases
          to be employed by the Company because of Employee's termination for
          gross misconduct or voluntary resignation prior to January 1, 2002.
          Until January 1, 2002, the Shares will be held in escrow by the
          Company to secure the Employee's obligation to resell the Shares to
          the Company in accordance with the terms and conditions of the
          restricted stock repurchase agreement. The restricted stock
          repurchase agreement will be executed by the Company and Employee on
          the Employee's first day of work with the Company. The Agreement will
          provide that immediately prior to and subject to the closing of an
          Acquisition of Zoom (i.e., a merger or consolidation of Zoom with or
          into another corporation or the sale, lease or exchange of all or
          substantially all of the assets of Zoom), Richard will be entitled to
          the shares free to the Company's repurchase.

     o    40,000 options granted within 30 days from your date of hire. The
          options would be issued at the market closing price for Zoom stock on
          the day of the issue. The options give you the right (but not the
          obligation) to purchase shares of Company stock at the option price.
          The options expire 36 months from the issue date. You may exercise
          (buy Company stock at the option price) 50% of the options one year
          from the issue date and the final 50%, 24 months from the issue date.
          You can retain the options and exercise them anytime after they have
          vested until they expire.



     o    20,000 additional options will be granted 1 year from your date of
          hire at the market price at the time of the grant.

     o    Options will be granted after the 1st year of employment so you will
          have at least 20,000 options vesting per year during your first 4
          years at Zoom.

     o    If Zoom is acquired, your options will vest automatically.



     As a salaried employee you will receive 4 weeks of paid vacation per year.
There are ten (10) paid holidays per year, and there are up to six (6) sick
days per year.

     You will receive the Company standard benefits package, including medical
and dental insurance, long term disability insurance, and life insurance equal
to one time your annual base salary.

     It is our understanding that all Company proprietary information will be
held in confidence, and will not be conveyed to anyone except as needed for you
to perform your assignment. We further understand that prior employers have no
restrictions that would prohibit, or otherwise restrict, your employment with
the Company. As part of this understanding, you will be asked to sign an
Intellectual Property and Confidentiality Agreement on your first day of
employment.

     You agree that during your employment and for 12 months thereafter, you
will not, directly or indirectly, solicit or encourage any Company employee to
leave its employment and will not employ or otherwise engage any Company
employee to work for any entity in which you have any ownership, interest or a
management or executive position.

     This offer is contingent upon your satisfaction of the requirements of the
Immigration Reform and Control Act of 1986. A valid driver's license and social
security card, or a birth certificate, current passport or other form of
identification will be required as proof of your authorization to work in the
United States.

     This offer is being made to you in writing in order that both you and the
Company will have a written record of the terms and your acceptance of this
offer of employment. Your employment with the Company may be terminated by you
or the Company, without liability to either, with or without cause and with or
without prior notice.

     It is understood that if you choose to leave Zoom within one year of the
start or your employment, you will refund the starting bonus back to Zoom
within 30 days of your leaving. If Zoom terminates you, on the other hand, you
would not repay the signing bonus.

     The terms of your employment may be changed only by written agreement and
signed by you and an authorized representative of the Company. Your employment
will also be subject to the provisions of the Company's Employee Handbook, as
amended from time to time. Please understand that Zoom may need to assign you
to a variety of programs or task as the need arises.


     If this offer is acceptable to you, please date and sign below, and return
a signed copy marked "Attn: Karen Player, Human Resources, Personal and
Confidential".

Sincerely,



Frank Manning
President




The foregoing is accepted as of                    , 2000.


        (Name)