Coast
                                Secured Term Note
                          (Equipment Acquisition Loans)

Co-Borrower:            Kendall Square Teleconferencing, Inc.,
                        a Massachusetts corporation
Address:                1 Kendall Square, Suite 328
                        Cambridge, Massachusetts 02139

Co-Borrower:            Conference Source International, Inc.,
                        a Georgia corporation
Address:                100 Hartsfield Center Parkway
                        Atlanta, Georgia 30354

Co-Borrower:            Telephone Business Meetings, Inc.,
                        a Delaware corporation
Address:                1861 Wiehle Avenue
                        Reston, Virginia 20190-5200

Co-Borrower:            Call Points, Inc.,
                        a Delaware corporation
Address:                1500 Hunter Loop Road
                        Montgomery, Alabama 36108

Co-Borrower:            American Conferening Company, Inc.,
                        a Delaware corporation
Address:                690 Kinderkamack Road
                        Oradell, New Jersey 07649

Co-Borrower:            Communication Development Corporation,
                        a Connecticut corporation
Address:                30 Main Street, Suite 400
                        Danbury, Connecticut 06810

Date:                   September 30, 1998


$4,000,000.00

         FOR VALUE  RECEIVED,  the undersigned  Borrowers  jointly and severally
(except  where  expressly  stated  otherwise  or unless the  context  requires a
different  meaning,  reference to "Borrower" in this Secured Term Note,  and all
documents,  agreements related thereto,  shall mean each of the above-referenced
Borrowers, jointly and severally), promise to pay to the order of Coast Business
Credit(R),  a division of Southern  Pacific Bank  ("Coast"),  at 12121  Wilshire
Boulevard, Suite 1111, Los Angeles,  California, or at such other address as the
holder of this Note shall  direct,  the  principal  sum of Four Million  Dollars
($4,000,000.00),  or  such  lesser  sum as may be  advanced  from  time  to time
hereunder.  Advances to Borrower  shall be in increments of at least One Hundred
Thousand Dollars  ($100,000.00)  each, based on invoices supporting the advances
pursuant to the terms hereof.  The advances shall be based upon a rate of 80% of
the purchase price of new or used equipment  hereafter acquired by Borrower less
any and all sales and other taxes and installation charges and expenses (subject
to confirmation by appraisers selected by or otherwise  acceptable to Coast that
the advance rate for the particular  used item(s) of equipment being acquired is
reasonable);  in addition,  equipment that was purchased  after December 1997 to
the date of Closing will be considered  eligible for advances at initial funding
provided such equipment was new when purchased and such consideration will be on
a case by case basis. At Coast's option, any used equipment acquired by Borrower
shall  be  subject  to  confirmation  by  appraisers  selected  by or  otherwise
acceptable  to Coast that the advance  rate for the  particular  used item(s) of
equipment being acquired is reasonable.

         Each advance of principal  hereunder  shall be repaid in equal  monthly
installments  based on a thirty six (36) month  amortization,  commencing on the
last day of the first full calendar month  following such advance and continuing
on the last day of each month  thereafter.  Each  advance  shall be added to the
aggregate  principal balance and the aggregate monthly principal  payments shall
be  increased by the monthly  principal  amortization  payment  relating to each
additional advance.

         The unpaid  principal  balance together with accrued interest and other
charges  shall be fully due and payable on the earlier of (i) the Maturity  Date
as provided in Section 9.1 of the Loan and  Security  Agreement  dated as of the
date hereof between Borrower and Coast or (ii) the effective date of termination
as provided in Section 9.2 of the Loan and Security  Agreement  between Borrower
and  Coast of even  date  herewith  (the  Loan and  Security  Agreement  and all
documents and agreements  relating thereto are  collectively  referred to as the
"Loan Documents").

         Interest  shall accrue at a rate equal to the "Prime Rate" plus one and
a half percent  (1.5%) per annum,  calculated on the basis of a 360-day year for
the actual number of days elapsed.  The interest rate shall be adjusted  monthly
as of the first day of each month, and the interest to be charged for each month
shall be based on the highest "Prime Rate" in effect during said month. Interest
shall be payable monthly,  on the last day of the month.  "Prime Rate" means the
actual  "Reference  Rate" or the substitute  therefor of Bank of America NT & SA
whether or not that rate is the lowest  interest  rate charged by said bank.  If
the Prime Rate, as defined, is unavailable,  "Prime Rate" shall mean the highest
of the prime rates  published in the Wall Street  Journal on the first  business
day of the month, as the base rate on corporate loans at large U.S. money center
commercial banks.

         Principal  of, and  interest  on,  this Note shall be payable in lawful
money of the United States of America.  If a payment  hereunder  becomes due and
payable on a Saturday,  Sunday or legal  holiday,  the due date thereof shall be
extended to the next  succeeding  business  day, and  interest  shall be payable
thereon during such extension.

         In the event any payment of  principal  or interest on this Note is not
paid in full when due,  or if any other Event of Default  occurs  under the Loan
Documents  or any other  present or future  instrument,  document,  or agreement
between Borrower and Coast,  Coast may, at its option, at any time,  declare the
entire  unpaid  principal  balance of this Note plus all accrued  interest to be
immediately  due and payable,  without  notice or demand.  Without  limiting the
foregoing,  and without  limiting  Coast's other rights and  remedies,  from and
after the  occurrence of any Event of Default,  the interest rate  applicable to
the  principal  balance of this Note shall be  increased by an  additional  five
percent  (5%) per annum.  The  acceptance  of any  installment  of  principal or
interest by Coast after the time when it becomes due, as herein specified, shall
not be held to  establish  a custom,  or to waive any rights of Coast to enforce
payment when due of any further  installments or any other rights, nor shall any
failure or delay to exercise any rights be held to waive the same.

         All  payments  hereunder  are to be  applied  first to  costs  and fees
referred to herein,  second to the payment of accrued interest and the remaining
balance  to  principal.  Any  principal  prepayment  hereunder  shall be applied
against  principal  payments in the inverse order of maturity.  Coast shall have
the continuing  and exclusive  right to apply or reverse and reapply any and all
payments hereunder in its sole discretion.

         Borrower  agrees to pay all reasonable  costs and expenses  (including,
without  limitation,  attorneys'  fees) incurred by Coast in connection  with or
related  to this  Note,  or its  enforcement,  whether  or not suit be  brought.
Borrower,  to the  maximum  extent  permitted  by  law,  hereby  further  waives
presentment,  demand for  payment,  notice of  dishonor,  notice of  nonpayment,
protest,  notice  of  protest,  and any and all other  notices  and  demands  in
connection with the delivery, acceptance,  performance,  default, or enforcement
of this Note.

         This Note is  secured  by the  "Collateral"  as  described  in the Loan
Documents  and all other  present  and future  security  that may be provided by
Borrower to Coast.  Nothing  herein shall be deemed to limit any of the terms or
provisions  of the Loan  Documents,  or any other  present  or future  document,
instrument or agreement,  between  Borrower and Coast, and all of Coast's rights
and remedies hereunder and thereunder are cumulative.  All capitalized terms not
otherwise  defined  herein  shall have the meaning  assigned to them in the Loan
Agreement unless the context requires a different meaning.

         In the event any one or more of the  provisions  of this Note shall for
any reason be held to be invalid,  illegal or unenforceable,  the same shall not
affect any other  provision of this Note and the  remaining  provisions  of this
Note shall remain in full force and effect.

         No waiver or  modification  of any of the terms or  provisions  of this
Note  shall be valid or binding  unless set forth in a writing  signed by a duly
authorized  officer of Coast,  and then only to the extent therein  specifically
set forth.

         EACH  BORROWER  AND THE HOLDER OF THIS NOTE  HEREBY  WAIVE THE RIGHT TO
TRIAL BY JURY IN ANY ACTION OR PROCEEDING BASED UPON,  ARISING OUT OF, OR IN ANY
WAY RELATING TO: (i) THIS NOTE; OR (ii) ANY OTHER  PRESENT OR FUTURE  INSTRUMENT
OR AGREEMENT BETWEEN COAST AND BORROWER UNLESS OTHERWISE  EXPRESSLY AGREED TO IN
WRITING; OR (iii) ANY CONDUCT,  ACTS OR OMISSIONS OF COAST OR BORROWER OR ANY OF
THEIR DIRECTORS,  OFFICERS,  EMPLOYEES,  AGENTS,  ATTORNEYS OR ANY OTHER PERSONS
AFFILIATED WITH COAST OR BORROWER.

         This Note is payable in, and shall be governed by the internal laws of,
the State of California.

            Co-Borrower:

KENDALL SQUARE TELECONFERENCING, INC.


By      /s/John J. Dion
        ---------------

Title   Vice President - Finance


By      /s/Courtney P. Snyder
        ---------------------

Title   President


         Co-Borrower:

CONFERENCE SOURCE INTERNATIONAL


By      /s/John J. Dion
        ---------------

Title   Vice President - Finance


By      /s/Glenn D. Bolduc
        ------------------

Title   President


            Co-Borrower:

TELEPHONE BUSINESS MEETINGS, INC.


By      /s/John J. Dion
        ---------------

Title   Vice President - Finance


By      /s/Glenn D. Bolduc
        ------------------

Title   Vice President


[SIGNATURES CONTINUED ON NEXT PAGE]


             Co-Borrower:

CALL POINTS, INC.


By      /s/John J. Dion
        ---------------

Title   Vice President - Finance


By      /s/Glenn D. Bolduc
        ------------------

Title   President


             Co-Borrower:

AMERICAN CONFERENCING COMPANY, INC.


By      /s/John J. Dion
        ---------------

Title   Vice President - Finance 


By      /s/Glenn D. Bolduc
        ------------------

Title   President


             Co-Borrower:

COMMUNICATION DEVELOPMENT CORPORATION


By      /s/John J. Dion
        ---------------

Title   Vice President - Finance


By      /s/Glenn D. Bolduc
        ------------------
 
Title   Vice President