VIALOG CORP
8-K, 1998-10-26
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM 8-K

                Current Report Pursuant to Section 13 or 15(d) of
                           The Securities Act of 1934




       Date of Report (Date of earliest event reported): October 6, 1998

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


   Massachusetts                  333-44041                      04-3305282
- --------------------------------------------------------------------------------
  (State or other                (Commission                  (I.R.S. Employer
    jurisdiction                 File Number)                Identification No.)
 of incorporation)



                    35 New England Business Center, Suite 160
                                Andover, MA 01810
- --------------------------------------------------------------------------------
                    (Address of principal executive offices)


                                                     
Registrant's telephone number, including area code    (978) 975-3700
                                                      --------------

  
- --------------------------------------------------------------------------------
         (Former name or former address, if changed since last report.)

<PAGE>
Item 5.  Other Events

         On October 6, 1998,  Coast  Business  Credit,  a division  of  Southern
Pacific Bank ("Coast"), funded five million dollars ($5,000,000.00) of a fifteen
million dollar  ($15,000,000.00)  asset based loan facility (the "Facility") for
the   subsidiaries   of   VIALOG    Corporation    ("VIALOG")--Kendall    Square
Teleconferencing,   Inc.,  Conference  Source  International,   Inc.,  Telephone
Business Meetings,  Inc., Call Points, Inc., American Conferencing Company, Inc.
and Communication Development Corporation (collectively,  the "Borrowers").  The
Facility was  guaranteed by VIALOG.  All assets of the Borrowers were pledged to
Coast as security for the Facility and VIALOG's  obligations  under its guaranty
were secured by a lien on all of its assets,  excluding its ownership  interests
in the  Borrowers.  The maturity  date of the  Facility,  if not extended by the
parties,  is October 6, 2000 at which time all  obligations to Coast will be due
and payable. Termination of the Facility prior to the maturity date will require
the payment of significant early termination fees (i.e. $450,000.00 on or before
October 6, 1999 and $300,000.00  thereafter but before the maturity  date).  The
Facility  has  three  components:  (1) a  receivables  loan  of up to 80% of the
Borrowers'  eligible  receivables,  (2) a term loan in the  principal  amount of
$1,500,000.00,  and (3) an equipment  acquisition  term loan of up to 80% of the
purchase  price of new and  used  equipment  not to  exceed  $4,000,000.00.  The
Facility  is  available  to  provide  liquidity,  fund  future  working  capital
requirements,  fund the purchase of equipment  and finance  future  acquisitions
consistent with VIALOG's business strategy.

Item 7.  Financial Statements and Exhibits

         (c)      Exhibits

                      10.1            Loan  &  Security  Agreement  dated  as of
                                      September 30, 1998 by and between  Kendall
                                      Square Teleconferencing,  Inc.; Conference
                                      Source   International,   Inc.;  Telephone
                                      Business  Meetings,   Inc.;  Call  Points,
                                      Inc.; American Conferencing Company, Inc.;
                                      and Communication Development Corporation

                      10.2            Secured Term Note dated September 30, 1998
                                      in  the  principal  amount  of  $4,000,000
                                      delivered      by      Kendall      Square
                                      Teleconferencing,  Inc.; Conference Source
                                      International,  Inc.;  Telephone  Business
                                      Meetings,   Inc.;   Call   Points,   Inc.;
                                      American Conferencing  Company,  Inc.; and
                                      Communication  Development  Corporation to
                                      Coast  Business   Credit,  a  division  of
                                      Southern Pacific Bank

                      10.3            Secured Term Note dated September 30, 1998
                                      in  the  principal  amount  of  $1,500,000
                                      delivered      by      Kendall      Square
                                      Teleconferencing,  Inc.; Conference Source
                                      International,  Inc.;  Telephone  Business
                                      Meetings,   Inc.;   Call   Points,   Inc.;
                                      American Conferencing  Company,  Inc.; and
                                      Communication  Development  Corporation to
                                      Coast  Business   Credit,  a  division  of
                                      Southern Pacific Bank
<PAGE>
                      10.4            Security  Agreement  dated  September  30,
                                      1998 by and between VIALOG Corporation and
                                      Coast  Business   Credit,  a  division  of
                                      Southern Pacific Bank

                      10.5            Continuing  Guaranty  dated  September 30,
                                      1998  executed  by VIALOG  Corporation  in
                                      favor of Coast Business Credit, a division
                                      of Southern Pacific Bank

                                    SIGNATURE

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  registrant  has duly  caused  this report to be signed on its behalf by the
undersigned duly authorized.

                                                      VIALOG CORPORATION



Date:    October 15, 1998                      By:    /s/ Glenn D. Bolduc
                                                      -------------------------
                                                      Glenn D. Bolduc, President


                                  EXHIBIT INDEX


                    Exhibit                         Description
                    -------                         -----------

                      10.1            Loan  &  Security  Agreement  dated  as of
                                      September 30, 1998 by and between  Kendall
                                      Square Teleconferencing,  Inc.; Conference
                                      Source   International,   Inc.;  Telephone
                                      Business  Meetings,   Inc.;  Call  Points,
                                      Inc.; American Conferencing Company, Inc.;
                                      and Communication Development Corporation

                      10.2            Secured Term Note dated September 30, 1998
                                      in  the  principal  amount  of  $4,000,000
                                      delivered      by      Kendall      Square
                                      Teleconferencing,  Inc.; Conference Source
                                      International,  Inc.;  Telephone  Business
                                      Meetings,   Inc.;   Call   Points,   Inc.;
                                      American Conferencing  Company,  Inc.; and
                                      Communication  Development  Corporation to
                                      Coast  Business   Credit,  a  division  of
                                      Southern Pacific Bank
<PAGE>
                      10.3            Secured Term Note dated September 30, 1998
                                      in  the  principal  amount  of  $1,500,000
                                      delivered      by      Kendall      Square
                                      Teleconferencing,  Inc.; Conference Source
                                      International,  Inc.;  Telephone  Business
                                      Meetings,   Inc.;   Call   Points,   Inc.;
                                      American Conferencing  Company,  Inc.; and
                                      Communication  Development  Corporation to
                                      Coast  Business   Credit,  a  division  of
                                      Southern Pacific Bank

                      10.4            Security  Agreement  dated  September  30,
                                      1998 by and between VIALOG Corporation and
                                      Coast  Business   Credit,  a  division  of
                                      Southern Pacific Bank

                      10.5            Continuing  Guaranty  dated  September 30,
                                      1998  executed  by VIALOG  Corporation  in
                                      favor of Coast Business Credit, a division
                                      of Southern Pacific Bank


                                  EXHIBIT 10.1
 


                           LOAN AND SECURITY AGREEMENT

                                 by and between


                     Kendall Square Teleconferencing, Inc.;

                     Conference Source International, Inc.;

                       Telephone Business Meetings, Inc.;

                               Call Points, Inc.;

                    American Conferencing Company, Inc.; and

                      Communication Development Corporation


                                       and


                            COAST BUSINESS CREDIT(R),
                       a division of Southern Pacific Bank


                         Dated as of September 30, 1998







<PAGE>
Coast   

                           Loan and Security Agreement



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, Suite 300
                  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 Conferencing 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
<PAGE>
Date:             September 30, 1998

      THIS LOAN AND SECURITY AGREEMENT is entered into on the above date between
COAST  BUSINESS  CREDIT(R),  a division of Southern  Pacific Bank  ("Coast"),  a
California  corporation,  with offices at 12121 Wilshire Boulevard,  Suite 1111,
Los Angeles,  California  90025,  and the  borrowers  named above  (except where
expressly stated  otherwise or unless the context requires a different  meaning,
reference to Borrower in this Loan and Security Agreement, and all documents and
agreements related thereto,  shall mean each of the above-referenced  Borrowers,
jointly and severally).  The chief executive  offices for each of the respective
Borrowers  is set  forth at the  above  addresses  ("Borrower's  Address").  The
Schedule to this Agreement (the "Schedule")  shall for all purposes be deemed to
be a part of this Agreement, and the same is an integral part of this Agreement.
(Definitions  of certain terms used in this Agreement are set forth in Section 1
below.)

1.    DEFINITIONS.  As used in this  Agreement,  the  following  terms  have the
      following meanings:

      "Account Debtor" means the obligor on a Receivable or General Intangible.

      "Affiliate"  means,  with  respect to any  Person,  a  relative,  partner,
shareholder,  director,  officer,  or employee of such Person,  or any parent or
subsidiary  of such Person,  or any Person  controlling,  controlled by or under
common control with such Person.

      "Audit" means to inspect,  audit and copy Borrower's books and records and
the Collateral.

      "Borrower"  has  the  meaning  set  forth  in  the  introduction  to  this
Agreement.

      "Borrower's  Address's" has the meaning set forth in the  introduction  to
this Agreement.

      "Business Day" means a day on which Coast is open for business.

      "Change of  Control"  shall be deemed to have  occurred  at such time as a
"person" or "group"  (within the meaning of Sections  13(d) and  14(d)(2) of the
Securities  Exchange  Act of  1934)  (other  than  the  current  holders  of the
ownership  interests in any Borrower) becomes the "beneficial owner" (as defined
in  Rule  13d-3  under  the  Securities  Exchange  Act  of  1934),  directly  or
indirectly,  as a result of any single transaction,  of more than twenty percent
(20%) of the  total  voting  power of all  classes  of stock or other  ownership
interests  then  outstanding  of any Borrower  normally  entitled to vote in the
election of directors or analogous governing body.

      "Closing Date" means date of the initial funding under this Agreement.

      "Coast" has the meaning set forth in the introduction to this Agreement.


      "Code" means the Uniform  Commercial  Code as adopted and in effect in the
State of California from time to time.

      "Collateral" has the meaning set forth in Section 4 hereof.

      "Credit  Limit"  means the maximum  amount of Loans that Coast may make to
Borrower pursuant to the amounts and percentages shown on the Schedule.
<PAGE>
      "Default"  means any event  which with  notice or passage of time or both,
would constitute an Event of Default.

      "Deposit Account" has the meaning set forth in Section 9105 of the Code.

      "Dollars or $" means United States dollars.

      "Early  Termination  Fee" means the amount set forth on the Schedule  that
Borrower  must pay Coast if this  Agreement is  terminated  by Borrower or Coast
pursuant to Section 9.2 hereof.

      "Eligible Receivables" means Receivables arising in the ordinary course of
Borrower's  business  from the sale of goods or  rendition  of  services,  which
Coast,  in its sole judgment,  shall deem eligible for borrowing,  based on such
considerations  as  Coast  may  from  time to time  deem  appropriate.  Eligible
Receivables shall not include the following:

                  (a)  Receivables  that the  Account  Debtor  has failed to pay
within  sixty (60) days past the due date of the  invoice  not to exceed  ninety
(90) days past the invoice date;

                  (b)  Receivables  owed by an Account  Debtor or its Affiliates
where twenty-five  percent (25%) or more of all Receivables owed by that Account
Debtor (or its Affiliates) are deemed ineligible under clause (a) above;

                  (c) Receivables with respect to which the Account Debtor is an
employee,  Affiliate (including,  without limitation,  inter-company Receivables
among Borrowers), or agent of Borrower;

                  (d)  Receivables  with  respect  to which  goods are placed on
consignment,  guaranteed sale, sale or return, sale on approval,  bill and hold,
or other  terms by reason of which the  payment  by the  Account  Debtor  may be
conditional;

                  (e)  Receivables  that  are not  payable  in  Dollars  or with
respect to which the Account  Debtor:  (i) does not maintain its chief executive
office in the  United  States,  or (ii) is not  organized  under the laws of the
United States or any State  thereof,  or (iii) is the  government of any foreign
country or sovereign state, or of any state,  province,  municipality,  or other
political subdivision thereof, or of any department, agency, public corporation,
or other instrumentality thereof;

                  (f)  Receivables  with respect to which the Account  Debtor is
either (i) the United States or any department,  agency, or  instrumentality  of
the  United  States  (exclusive,  however,  of  Accounts  with  respect to which
Borrower has complied,  to the  satisfaction  of Coast,  with the  Assignment of
Claims  Act,  31  U.S.C.  '  3727),  or (ii)  any  State  of the  United  States
(exclusive,  however,  of  Receivables  owed by any  State  that does not have a
statutory counterpart to the Assignment of Claims Act);

                  (g) Receivables  with respect to which the Account Debtor is a
creditor of Borrower,  has or has  asserted a right of setoff,  has disputed its
liability, or has made any claim with respect to the Receivables;
<PAGE>
                  (h) Receivables  with respect to an Account Debtor whose total
obligations  owing  to any one  Borrower  exceed  twenty  percent  (20%)  of all
Eligible  Receivables,  to the extent of the  obligations  owing by such Account
Debtor in excess of such percentage.  Notwithstanding the foregoing, Receivables
due Conference Source  International,  Inc. from VoiceCom and WorldCom shall not
be subject to the preceding percentage limitation provided that no more than ten
percent  (10%)  of  the  Receivables  of  each  such  Account  Debtor  shall  be
outstanding  for more than ninety (90) days past invoice date or sixty (60) days
past invoice due date;

                  (i)  Receivables  with respect to which the Account  Debtor is
subject to any reorganization, bankruptcy, insolvency, arrangement, readjustment
of debt, dissolution or liquidation  proceeding,  or becomes insolvent,  or goes
out of business;

                  (j)   Receivables  the  collection  of  which  Coast,  in  its
reasonable  credit  judgment,  believes to be doubtful or uncertain by reason of
the Account Debtor's financial condition;

                  (k) Receivables with respect to which the goods giving rise to
such  Receivable  have not been  shipped and billed to the Account  Debtor,  the
services  giving rise to such Receivable have not been performed and accepted by
the Account Debtor, or the Receivable otherwise does not represent a final sale;

                  (l)  Receivables  with respect to which the Account  Debtor is
located in the states of New Jersey,  Minnesota,  Indiana,  or West Virginia (or
any other state that requires a creditor to file a Business  Activity  Report or
similar  document  in order to bring  suit or  otherwise  enforce  its  remedies
against  such Account  Debtor in the courts or through any  judicial  process of
such  state),  unless  Borrower  has  qualified  to do  business  in New Jersey,
Minnesota,  Indiana,  West Virginia, or such other states, or has filed a Notice
of Business  Activities  Report with the  applicable  division of taxation,  the
department of revenue, or with such other state offices, as appropriate, for the
then-current year, or is exempt from such filing requirement;

                  (m)  Receivables  that  represent  progress  payments or other
advance billings that are due prior to the completion of performance by Borrower
of the subject contract for goods or services; and

                  (n)  Receivables  of  customers  or Account  Debtors of either
American Conferencing Company, Inc. or Communication Development Corporation.

      "Equipment"  means  all  of  Borrower's  present  and  hereafter  acquired
machinery,  molds, machine tools,  motors,  furniture,  equipment,  furnishings,
fixtures,  trade fixtures,  motor vehicles,  tools, parts, dies, jigs, goods and
other  goods  (other  than  Inventory)  of every  kind and  description  used in
Borrower's  operations  or  owned by  Borrower  and any  interest  in any of the
foregoing,   and  all  attachments,   accessories,   accessions,   replacements,
substitutions,  additions  or  improvements  to any of the  foregoing,  wherever
located.

      "Equipment Acquisition Loans" means the Loans described in Section 2(c) of
the Schedule.

      "Event of  Default"  means any of the events set forth in Section  10.1 of
this Agreement.

      "GAAP" means generally  accepted  accounting  principles as in effect from
time to time in the United States, consistently applied.
<PAGE>
      "General  Intangibles" means all general intangibles of Borrower,  whether
now owned or  hereafter  created or acquired  by  Borrower,  including,  without
limitation,  all choses in action, causes of action, corporate or other business
records, Deposit Accounts, investment property,  inventions,  designs, drawings,
blueprints,  patents,  patent  applications,  trademarks and the goodwill of the
business  symbolized  thereby,  names,  trade names,  trade  secrets,  goodwill,
copyrights,  registrations,  licenses, franchises,  customer lists, security and
other deposits,  rights in all litigation presently or hereafter pending for any
cause or claim (whether in contract,  tort or otherwise),  and all judgments now
or hereafter arising therefrom,  all claims of Borrower against Coast, rights to
purchase or sell real or personal property,  rights as a licensor or licensee of
any  kind,  royalties,  telephone  numbers,  proprietary  information,  purchase
orders, and all insurance policies and claims (including without limitation life
insurance, key man insurance,  credit insurance,  liability insurance,  property
insurance  and other  insurance),  tax refunds and  claims,  computer  programs,
discs,  tapes and tape files,  claims under  guaranties,  security  interests or
other security held by or granted to Borrower, all rights to indemnification and
all other intangible property of every kind and nature (other than Receivables).

      "Inventory"  means all of  Borrower's  now owned  and  hereafter  acquired
goods, merchandise or other personal property, wherever located, to be furnished
under any  contract  of  service  or held for sale or lease  (including  without
limitation  all raw  materials,  work in  process,  finished  goods and goods in
transit, and including without limitation all farm products),  and all materials
and supplies of every kind, nature and description which are or might be used or
consumed in  Borrower's  business or used in  connection  with the  manufacture,
packing, shipping, advertising,  selling or finishing of such goods, merchandise
or other personal property,  and all warehouse receipts,  documents of title and
other documents representing any of the foregoing.

      "Investment  Property"  has the meaning  set forth in Section  9115 of the
Code as in effect as of the date
hereof.

      "Loan Documents" means this Agreement, the agreements and documents listed
in the  Schedule,  and  any  other  agreement,  instrument  or  document  now or
hereafter executed in connection herewith or therewith.

      "Loans" has the meaning set forth in Section 2.1 hereof.

      "Material  Adverse  Effect"  means a  material  adverse  effect on (i) the
business, assets, condition (financial or otherwise) or results of operations of
Borrower  or  any  subsidiary  of  Borrower  or  any  guarantor  of  any  of the
Obligations,  (ii)  the  ability  of  Borrower  or any  guarantor  of any of the
Obligations to perform its obligations under this Agreement (including,  without
limitation, repayment of the Obligations as they come due) or (iii) the validity
or  enforceability  of this Agreement or any other agreement or document entered
into by any party in  connection  herewith,  or the rights or  remedies of Coast
hereunder or thereunder.

      "Maturity  Date"  means  the date that this  Agreement  shall  cease to be
effective,  as set forth on the Schedule,  subject to the  provisions of Section
9.1 and 9.2 hereof.

      "Maximum  Dollar  Amount"  has the  meaning  set forth in Section 2 of the
Schedule.

      "Minimum  Monthly  Interest" has the meaning set forth in Section 3 of the
Schedule.
<PAGE>
       "Minimum Net Worth"  means  consolidated  Owner's  equity of Borrower and
VIALOG, plus subordinated debt permitted hereunder.  Subordinated debt permitted
hereunder shall include: (a) debts of Borrower and VIALOG which are subordinated
to Coast pursuant to written  subordination  agreements acceptable to Coast; and
(b) the total outstanding balance under the $75,000,000,000 12 3/4% Senior Notes
issued by VIALOG.

      "Obligations"  means  all  present  and  future  Loans,  advances,  debts,
liabilities,  obligations, guaranties, covenants, duties and indebtedness at any
time owing by Borrower to Coast, whether evidenced by this Agreement or any note
or other  instrument or document,  whether  arising from an extension of credit,
opening  of  a  letter  of  credit,   banker's   acceptance,   loan,   guaranty,
indemnification  or otherwise,  whether direct or indirect  (including,  without
limitation,  those  acquired by  assignment  and any  participation  by Coast in
Borrower's debts owing to others), absolute or contingent, due or to become due,
including, without limitation, all interest, charges, expenses, fees, attorneys'
fees  (including  attorneys' fees and expenses  incurred in bankruptcy),  expert
witness fees,  audit fees,  letter of credit fees,  collateral  monitoring fees,
closing fees, facility fees,  termination fees, minimum interest charges and any
other  sums  chargeable  to  Borrower  under this  Agreement  or under any other
present or future instrument or agreement between Borrower and Coast.

      "Permitted Liens" means the following:

            (a)  purchase  money   security   interests  in  specific  items  of
Equipment;

            (b)   leases of specific items of Equipment;

            (c)   liens for taxes not yet payable;

            (d) additional  security interests and liens consented to in writing
by Coast, which consent shall not be unreasonably withheld;

            (e) security interests being terminated  substantially  concurrently
with this Agreement;

            (f) liens of  materialmen,  mechanics,  warehousemen,  carriers,  or
other  similar  liens  arising in the  ordinary  course of business and securing
obligations which are not delinquent;

            (g) liens  incurred in  connection  with the  extension,  renewal or
refinancing of the indebtedness  secured by liens of the type described above in
clauses (a) or (b) above,  provided that any  extension,  renewal or replacement
lien  is  limited  to the  property  encumbered  by the  existing  lien  and the
principal amount of the indebtedness being extended,  renewed or refinanced does
not increase; or

            (h) liens in favor of customs and revenue  authorities  which secure
payment of customs duties in connection with the importation of goods.

Coast  will have the right to  require,  as a  condition  to its  consent  under
subparagraph (d) above,  that the holder of the additional  security interest or
lien sign an intercreditor  agreement on Coast's then standard form, acknowledge
that the security  interest is subordinate to the security  interest in favor of
Coast,  and agree not to take any action to  enforce  its  subordinate  security
interest so long as any Obligations remain outstanding,  and that Borrower agree
that any uncured default in any obligation  secured by the subordinate  security
interest shall also constitute an Event of Default under this Agreement.
<PAGE>
      "Person" means any individual,  sole proprietorship,  general partnership,
limited partnership,  limited liability partnership,  limited liability company,
joint venture, trust,  unincorporated  organization,  association,  corporation,
government, or any agency or political division thereof, or any other entity.

      "Prime Rate" means the actual "Reference Rate" or the substitute  therefor
of the 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 applicable  month,  as the base rate on
corporate loans at large U.S. money center commercial banks.

      "Receivable  Loans"  means  the Loans  described  in  Section  2(a) of the
Schedule.

      "Receivables"  means all of Borrower's  now owned and  hereafter  acquired
accounts  (whether or not earned by  performance),  letters of credit,  contract
rights, chattel paper, instruments,  securities, documents, securities accounts,
security  entitlements,  commodity  contracts,  commodity  accounts,  investment
property and all other forms of obligations  at any time owing to Borrower,  all
guaranties  and  other  security  therefor,   all  merchandise  returned  to  or
repossessed  by  Borrower,  and all rights of  stoppage in transit and all other
rights or remedies of an unpaid vendor, lienor or secured party.

      "Renewal  Date" shall mean the Maturity Date if this  Agreement is renewed
pursuant  to Section  9.1  hereof,  and each  anniversary  thereafter  that this
Agreement is renewed pursuant to Section 9.1 hereof.

      "Renewal  Fee" means the fee that  Borrower must pay Coast upon renewal of
this  Agreement  pursuant to Section 9.1 hereof,  in the amount set forth on the
Schedule.

      "Senior Notes" means the $75,000,000 of 12 3/4% Series A and Series B note
due 2001 issued by VIALOG and guarantied by the Borrowers.  The Senior Notes are
and will continue to be effectively  subordinated to the Obligations of Borrower
and VIALOG to Coast to the extent that  assets and  interests  of  Borrower  and
VIALOG are  Collateral for the  Obligations  to Coast.  Except for the effective
subordination  to Coast,  the Senior  Notes and  Obligations  to Coast rank pari
passu in right of payment.  able  liability  of such Person on its debts as they
become absolute and

      "Solvent" means,  with respect to any Person on a particular date, that on
such  date (a) at fair  valuations,  all of the  properties  and  assets of such
Person are greater than the sum of the debts, including contingent  liabilities,
of such Person,  (b) the present fair salable value of the properties and assets
of such  Person is not less than the  amount  that will be  required  to pay the
probable  liability  of such  Person on its debts as they  become  absolute  and
matured,  (c) such Person is able to realize upon its  properties and assets and
pay  its  debts  and  other  liabilities,   contingent   obligations  and  other
commitments  as they mature in the normal  course of  business,  (d) such Person
does not intend to, and does not believe  that it will,  incur debts beyond such
Person's ability to pay as such debts mature, and (e) such Person is not engaged
in  business  or a  transaction,  and is not about to engage  in  business  or a
transaction,  for which such  Person's  properties  and assets would  constitute
unreasonably  small capital  after giving due  consideration  to the  prevailing
practices  in the  industry in which such Person is engaged.  In  computing  the
amount  of  contingent  liabilities  at  any  time,  it is  intended  that  such
liabilities  will be computed at the amount that,  in light of all the facts and
circumstances  existing at such time,  represents the amount that reasonably can
be expected to become an actual or matured liability.
<PAGE>
      "Term Loan" means the Loans described in Section 2(c) of the Schedule.

      "VIALOG" means VIALOG Corporation, a Massachusetts corporation.

      "Year 2000  Problem"  means the risk that computer  systems,  software and
applications  used by a Person may be unable to recognize  and perform  properly
date-sensitive  functions  involving  certain dates prior to and any dates after
December 31, 1999.

      "Other  Terms."  All  accounting  terms  used  in this  Agreement,  unless
otherwise  indicated,  shall have the meanings given to such terms in accordance
with  GAAP.  All other  terms  contained  in this  Agreement,  unless  otherwise
indicated,  shall have the  meanings  provided  by the Code,  to the extent such
terms are defined therein.

2.    CREDIT FACILITIES.

      2.1 Loans. Coast will make loans to Borrower (the "Loans"), in amounts and
in percentages to be determined by Coast in its good faith discretion, up to the
Credit  Limit,  provided  no  Default or Event of Default  has  occurred  and is
continuing. In addition, Coast may create reserves against or reduce its advance
rates based upon Eligible  Receivables or Eligible Inventory without declaring a
Default  or an Event of  Default  if it  determines  that  there has  occurred a
Material Adverse Effect.

3.    INTEREST AND FEES.

      3.1  Interest.  All Loans and all other  monetary  Obligations  shall bear
interest at the rate shown on the Schedule,  except where expressly set forth to
the contrary in this Agreement.  Interest shall be payable monthly,  on the last
day of the month. Interest may, in Coast's discretion,  be charged to Borrower's
loan account,  and the same shall  thereafter  bear interest at the same rate as
the other Loans. Regardless of the amount of Obligations that may be outstanding
from time to time,  Borrower shall pay Coast Minimum Monthly Interest during the
term of this Agreement  with respect to the  Receivable  Loans and the Inventory
Loans in the amount set forth on the Schedule.

      3.2 Fees. Borrower shall pay Coast the fee(s) shown on the Schedule, which
are in addition to all  interest  and other sums payable to Coast and are deemed
fully earned and are nonrefundable.

4.    SECURITY INTEREST.

      To secure the payment and performance of all of the Obligations  when due,
Borrower  hereby  grants  to  Coast a  security  interest  in all of  Borrower's
interest in the following, whether now owned or hereafter acquired, and wherever
located: All Receivables, Inventory, Equipment, Investment Property, and General
Intangibles,  including, without limitation, all of Borrower's Deposit Accounts,
and all  money,  and all  property  now or at any time in the  future in Coast's
possession  (including claims and credit  balances),  and all proceeds of any of
the  foregoing  (including  proceeds  of any  insurance  policies,  proceeds  of
proceeds,  and  claims  against  third  parties),  all  products  of  any of the
foregoing, and all books and records related to any of the foregoing (all of the
foregoing,  together  with all other  property  in which Coast may now or in the
future  be  granted  a  lien  or  security  interest,  is  referred  to  herein,
collectively, as the "Collateral")
<PAGE>
5.    CONDITIONS PRECEDENT.

      The obligation of Coast to make the Loans is subject to the  satisfaction,
in the sole  discretion  of  Coast,  at or prior to the first  advance  of funds
hereunder, of each, every and all of the following conditions:

      5.1 Status of Accounts at Closing.  No accounts  payable  shall be due and
unpaid one hundred and twenty  (120) days past its invoice  date except for: (a)
such accounts  payable being contested in good faith in appropriate  proceedings
and for which adequate reserves have been provided;  (b) account payable due and
owing to Compunetics by American Conferencing Company, Inc.

      5.2  Minimum  Availability.   Borrower  shall  have  minimum  availability
immediately  following  the  initial  funding  in the  amount  set  forth on the
Schedule.

      5.3 Landlord  Waiver.  Coast shall have received  duly  executed  landlord
waivers and access  agreements in form and substance  satisfactory  to Coast, in
Coast's sole and absolute discretion,  and, when deemed appropriate by Coast, in
form for  recording in the  appropriate  recording  office,  with respect to all
leased locations where Borrower maintains any inventory or equipment.

      5.4 Executed  Agreement.  Coast shall have  received this  Agreement  duly
executed  and in form  and  substance  satisfactory  to  Coast  in its  sole and
absolute discretion.

      5.5. Opinion of Borrower's  Counsel.  Coast shall have received an opinion
of Borrower's counsel,  in form and substance  satisfactory to Coast in its sole
and absolute discretion.

      5.6 Priority of Coast's Lien. Coast shall have received the results of "of
record"  searches  satisfactory  to Coast in its sole and  absolute  discretion,
reflecting its Uniform Commercial Code filings against Borrower  indicating that
Coast has a perfected,  first  priority lien in and upon all of the  Collateral,
subject only to Permitted Liens.

      5.7 Insurance.  Coast shall have received copies of the insurance  binders
or  certificates  evidencing  Borrower's  compliance  with  Section  8.2 hereof,
including lender's loss payee endorsements.

      5.8 Borrower's  Existence.  Coast shall have received copies of Borrower's
articles or  certificate of  incorporation  and all  amendments  thereto,  and a
Certificate  of Good  Standing,  each certified by the Secretary of State of the
state of Borrower's  organization,  and dated a recent date prior to the Closing
Date, and Coast shall have received  Certificates of Foreign  Qualification  for
Borrower  from the Secretary of State of each state wherein the failure to be so
qualified could have a Material Adverse Effect.

      5.9  Organizational  Documents.   Coast  shall  have  received  copies  of
Borrower's  By-laws and all  amendments  thereto,  and Coast shall have received
copies of the resolutions of the board of directors of Borrower, authorizing the
execution and delivery of this  Agreement and the other  documents  contemplated
hereby, and authorizing the transactions  contemplated hereunder and thereunder,
and authorizing  specific  officers of Borrower to execute the same on behalf of
Borrower, in each case certified by the Secretary or other acceptable officer of
Borrower as of the Closing Date.
<PAGE>
      5.10 Taxes. Coast shall have received evidence from Borrower that Borrower
has complied with all tax withholding and Internal Revenue Service  regulations,
in form and substance satisfactory to Coast in its sole and absolute discretion.

      5.11.  Due  Diligence.  Coast shall have  completed its due diligence with
respect to Borrower.

      5.12 Other Documents and Agreements.  Coast shall have received such other
agreements,  instruments  and documents as Coast may require in connection  with
the transactions  contemplated hereby, all in form and substance satisfactory to
Coast in Coast's  sole and  absolute  discretion,  and in form for filing in the
appropriate filing office, including, but not limited to, those documents listed
in Section 5 of the Schedule.

6.    REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE BORROWER.

      In order to induce Coast to enter into this  Agreement  and to make Loans,
Borrower  represents  and warrants to Coast as follows,  and Borrower  covenants
that the following  representations  will continue to be true, and that Borrower
will at all times comply with all of the following covenants:

      6.1  Existence  and  Authority.  Borrower is and will continue to be, duly
organized,  validly  existing  and  in  good  standing  under  the  laws  of the
jurisdiction of its organization.  Borrower is and will continue to be qualified
and licensed to do business in all  jurisdictions  in which any failure to do so
would have a Material Adverse Effect. The execution, delivery and performance by
Borrower of this Agreement, and all other documents contemplated hereby (a) have
been duly and  validly  authorized,  (b) are  enforceable  against  Borrower  in
accordance  with their terms (except as enforcement  may be limited by equitable
principles and by bankruptcy, insolvency, reorganization,  moratorium or similar
laws relating to creditors' rights generally), and (c) do not violate Borrower's
articles or certificate of incorporation,  or Borrower's  by-laws, or any law or
any material  agreement  or  instrument  which is binding  upon  Borrower or its
property,  and (d) do not constitute  grounds for  acceleration  of any material
indebtedness or obligation  under any material  agreement or instrument which is
binding upon Borrower or its property.

      6.2 Name;  Trade Names and Styles.  The name of Borrower  set forth in the
heading to this  Agreement is its correct  name.  Listed on the Schedule are all
prior names of Borrower  and all of  Borrower's  present and prior trade  names.
Borrower shall give Coast thirty (30) days' prior written notice before changing
its name or doing business under any other name. Borrower has complied, and will
in the future comply,  with all laws relating to the conduct of business under a
fictitious business name.

      6.3 Place of Business;  Location of  Collateral.  The address set forth in
the heading to this Agreement is Borrower's chief executive office. In addition,
Borrower has places of business and  Collateral is located only at the locations
set forth on the  Schedule.  Borrower will give Coast at least thirty (30) days'
prior written notice before opening any additional  place of business,  changing
its chief executive  office, or moving any of the Collateral to a location other
than Borrower's Address or one of the locations set forth on the Schedule.

      6.4 Title to Collateral; Permitted Liens. Borrower is now, and will at all
times in the future be, the sole owner of all the  Collateral,  except for items
of Equipment which are leased by Borrower. The Collateral now is and will remain
<PAGE>
free and clear of any and all liens, charges,  security interests,  encumbrances
and adverse claims, except for Permitted Liens. Coast now has, and will continue
to have, a first-priority  perfected and enforceable security interest in all of
the Collateral,  subject only to the Permitted  Liens,  and Borrower will at all
times defend Coast and the Collateral against all claims of others.  None of the
Collateral  now is or will be affixed to any real property in such a manner,  or
with such intent, as to become a fixture.  Borrower is not and will not become a
lessee under any real property lease pursuant to which the lessor may obtain any
rights in any of the  Collateral  and no such  lease now  prohibits,  restrains,
impairs or will  prohibit,  restrain  or impair  Borrower's  right to remove any
Collateral  from the leased  premises.  Whenever any  Collateral is located upon
premises in which any third party has an interest (whether as owner,  mortgagee,
beneficiary under a deed of trust, lien or otherwise),  Borrower shall, whenever
requested  by Coast,  use its best  efforts to cause such third party to execute
and  deliver  to  Coast,  in  form   acceptable  to  Coast,   such  waivers  and
subordinations  as Coast shall  specify,  so as to ensure that Coast's rights in
the Collateral  are, and will continue to be, superior to the rights of any such
third party.  Borrower will keep in full force and effect,  and will comply with
all the terms of, any lease of real property  where any of the Collateral now or
in the future may be located.

      6.5  Maintenance of  Collateral.  Borrower will maintain the Collateral in
good  working  condition,  and  Borrower  will  not use the  Collateral  for any
unlawful  purpose.  Borrower  will  immediately  advise  Coast in writing of any
material loss or damage to the Collateral.

      6.6 Books and  Records.  Borrower  has  maintained  and will  maintain  at
Borrower's  Address  complete and  accurate  books and  records,  comprising  an
accounting system in accordance with GAAP.

      6.7 Financial Condition,  Statements and Reports. All financial statements
now or in the future  delivered  to Coast have been,  and will be,  prepared  in
conformity with GAAP (except, in the case of unaudited financial statements, for
the absence of footnotes and subject to normal year-end adjustments) and now and
in the future will fairly  reflect the financial  condition of Borrower,  at the
times and for the periods therein  stated.  Between the last date covered by any
such statement provided to Coast and the date hereof, there has been no Material
Adverse Effect. Borrower is now and will continue to be Solvent.

      6.8 Tax Returns and Payments;  Pension Contributions.  Borrower has timely
filed,  and will timely file,  all tax returns and reports  required by foreign,
federal, state and local law, and Borrower has timely paid, and will timely pay,
all  foreign,  federal,  state  and  local  taxes,  assessments,   deposits  and
contributions  now or in the future owed by  Borrower.  Borrower  may,  however,
defer payment of any contested  taxes,  provided that Borrower (i) in good faith
contests  Borrower's  obligation  to pay the  taxes by  appropriate  proceedings
promptly and diligently instituted and conducted, (ii) notifies Coast in writing
of the  commencement of, and any material  development in, the proceedings,  and
(iii) posts bonds or takes any other steps required to keep the contested  taxes
from becoming a lien upon any of the Collateral. As of the date hereof, Borrower
is unaware of any claims or adjustments proposed for any of Borrower's prior tax
years  which  could  result in  additional  taxes  becoming  due and  payable by
Borrower.  Borrower has paid, and shall continue to pay all amounts necessary to
fund all present and future  pension,  profit sharing and deferred  compensation
<PAGE>
plans in accordance with their terms, and Borrower has not and will not withdraw
from participation in, permit partial or complete  termination of, or permit the
occurrence  of any other event with respect to, any such plan which could result
in any liability of Borrower,  including  any  liability to the Pension  Benefit
Guaranty Corporation or its successors or any other governmental agency. Without
limiting any of Coast's other rights and remedies under this Agreement, upon the
occurrence  of an Event of Default,  Borrower  shall  utilize the services of an
outside payroll service providing for the automatic deposit of all payroll taxes
payable by Borrower.

      6.9 Compliance with Law.  Borrower has complied,  and will comply,  in all
material respects,  with all provisions of all material foreign,  federal, state
and local laws and regulations relating to Borrower,  including, but not limited
to, the Fair Labor Standards Act, and those relating to Borrower's  ownership of
real or personal property, the conduct and licensing of Borrower's business, and
environmental matters.

      6.10 Litigation.  Except as disclosed in the Schedule,  there is no claim,
suit, litigation,  proceeding or investigation pending or (to best of Borrower's
knowledge) threatened by or against or affecting Borrower in any court or before
any  governmental  agency (or any basis  therefor  known to Borrower)  which may
result,  either  separately or in the aggregate,  in a Material  Adverse Effect.
Borrower  will  promptly  inform  Coast in  writing  of any  claim,  proceeding,
litigation or investigation in the future threatened or instituted by or against
Borrower involving an amount set forth on the Schedule.

      6.11 Use of  Proceeds.  All proceeds of all Loans shall be used solely for
lawful  business  purposes.  Borrower is not  purchasing or carrying any "margin
stock" (as  defined in  Regulation  G of the Board of  Governors  of the Federal
Reserve System) and no part of the proceeds of any Loan will be used to purchase
or carry any  "margin  stock" or to extend  credit to others for the  purpose of
purchasing or carrying any "margin stock."

      6.12 Year 2000  Compliance.  Borrower  represents  and warrants  that with
respect to the computer  systems,  software and applications of Borrower and its
material suppliers, vendors and customers, the Year 2000 Problem will not result
in a Material Adverse Effect.

7.    RECEIVABLES.

      7.1  Representations  Relating to  Receivables.  Borrower  represents  and
warrants to Coast as follows:  Each  Receivable  with respect to which Loans are
requested  by  Borrower  shall,  on the date  each Loan is  requested  and made,
represent an  undisputed  bona fide  existing  unconditional  obligation  of the
Account  Debtor  created by the sale,  delivery and  acceptance  of goods or the
rendition of services in the ordinary course of Borrower's business.

      7.2 Representations  Relating to Documents and Legal Compliance.  Borrower
represents and warrants to Coast as follows:  All statements made and all unpaid
balances appearing in all invoices,  instruments and other documents  evidencing
the  Receivables  are and  shall be true  and  correct  and all  such  invoices,
instruments and other documents and all of Borrower's  books and records are and
shall be  genuine  and in all  respects  what they  purport to be. All sales and
other  transactions  underlying  or giving rise to each  Receivable  shall fully
comply with all applicable  laws and  governmental  rules and  regulations.  All
signatures  and  endorsements  on all  documents,  instruments,  and  agreements
relating to all  Receivables  are and shall be genuine,  and all such documents,
instruments  and agreements  are and shall be legally  enforceable in accordance
with their terms.
<PAGE>
      7.3  Schedules  and  Documents  relating to  Receivables.  Borrower  shall
deliver to Coast via  facsimile,  unless  otherwise  directed by Coast,  at such
locations and at such  intervals as Coast may request,  transaction  reports and
loan requests,  schedules of Receivables,  and schedules of collections,  all on
Coast's standard forms;  provided,  however,  that Borrower's failure to execute
and deliver the same shall not affect or limit  Coast's  security  interest  and
other rights in all of  Borrower's  Receivables,  nor shall  Coast's  failure to
advance or lend against a specific  Receivable  affect or limit Coast's security
interest and other rights therein.  Loan requests  received after 10:30 A.M. Los
Angeles,  California  time,  will  not be  considered  by Coast  until  the next
Business Day. Together with each such schedule,  or later if requested by Coast,
Borrower shall furnish Coast with copies (or, at Coast's request,  originals) of
all contracts,  orders,  invoices, and other similar documents, and all original
shipping instructions, delivery receipts, bills of lading, and other evidence of
delivery,  for any  goods  the sale or  disposition  of which  gave rise to such
Receivables,  and Borrower  warrants the  genuineness  of all of the  foregoing.
Borrower shall also furnish to Coast an aged accounts  receivable  trial balance
in such form and at such intervals as Coast shall request. In addition, Borrower
shall deliver to Coast the originals of all instruments, chattel paper, security
agreements,  guarantees and other documents and property  evidencing or securing
any Receivables, upon receipt thereof and in the same form as received, with all
necessary endorsements, all of which shall be with recourse. Borrower shall also
provide Coast with copies of all credit memos as and when requested by Coast.

      7.4  Collection of  Receivables.  Borrower shall have the right to collect
all  Receivables,  unless and until an Event of Default has  occurred.  Borrower
shall hold all payments on, and proceeds of, Receivables in trust for Coast, and
Borrower  shall  deliver all such  payments and proceeds to Coast within one (1)
Business Day after receipt by Borrower, in their original form, duly endorsed to
Coast, to be applied to the Obligations in such order as Coast shall  determine.
Notwithstanding  the  foregoing,  if an  exceptional  circumstance  arises which
precludes  Borrower  from  delivering  to Coast a particular  item of payment or
proceed of a Receivable  within one (1) Business Day after  receipt by Borrower,
Borrower shall deliver such payment and proceed to Coast as soon as practicable,
but in no event later than three (3)  Business  Days after  receipt by Borrower.
Coast may,  in its  discretion,  require  that all  proceeds  of  Collateral  be
deposited by Borrower into a lockbox account, or such other "blocked account" as
Coast may specify, pursuant to a blocked account agreement in such form as Coast
may specify. Coast or its designee may, at any time, notify Account Debtors that
Coast has been granted a security interest in the Receivables.

      7.5 Remittance of Proceeds.  All proceeds  arising from the disposition of
any  Collateral  shall be  delivered  to Coast within one (1) Business Day after
receipt by Borrower,  in their  original  form,  duly  endorsed to Coast,  to be
applied  to  the   Obligations   in  such  order  as  Coast   shall   determine.
Notwithstanding  the  foregoing,  if an  exceptional  circumstance  arises which
precludes   Borrower  from  delivering  to  Coast  proceeds  obtained  from  the
disposition of any item of Collateral  within one (1) Business Day after receipt
by  Borrower,  Borrower  shall  deliver  such  proceeds  to  Coast  as  soon  as
practicable, but in no event later than three (3) Business Days after receipt by
Borrower. Borrower agrees that it will not commingle proceeds of Collateral with
any of Borrower's other funds or property,  but will hold such proceeds separate
and apart from such other funds and property and in an express  trust for Coast.
Nothing in this Section limits the restrictions on disposition of Collateral set
forth elsewhere in this Agreement.
<PAGE>
      7.6  Disputes.  Borrower  shall  notify  Coast  promptly  of all  material
disputes or claims relating to material Receivables.  Borrower shall not forgive
(completely  or  partially),  compromise or settle any  Receivable for less than
payment in full, or agree to do any of the  foregoing,  except that Borrower may
do so,  provided  that:  (a) Borrower does so in good faith,  in a  commercially
reasonable  manner,  in the  ordinary  course of  business,  and in arm's length
transactions,  which are  reported to Coast on the regular  reports  provided to
Coast;  (b) no Default or Event of Default has occurred and is  continuing;  and
(c) taking into account all such  discounts  settlements  and  forgiveness,  the
total outstanding Loans will not exceed the Credit Limit. Coast may, at any time
after an Event of  Default  has  occurred  and is  continuing,  settle or adjust
disputes  or claims  directly  with  Account  Debtors for amounts and upon terms
which Coast  considers  advisable in its reasonable  credit judgment and, in all
cases,  Coast shall  credit  Borrower's  Loan  account with only the net amounts
received by Coast in payment of any Receivables.

      7.7 Returns.  Provided no Event of Default has occurred and is continuing,
if any Account Debtor  returns any Inventory to Borrower in the ordinary  course
of its business,  Borrower shall  promptly  determine the reason for such return
and promptly issue a credit  memorandum to the Account Debtor in the appropriate
amount.  In the event any attempted  return  occurs after the  occurrence of any
Event of Default,  Borrower  shall (a) hold the returned  Inventory in trust for
Coast,  (b)  segregate  all  returned  Inventory  from all of  Borrower's  other
property,  (c) conspicuously  label the returned Inventory as subject to Coast's
security  interest,  and (d)  immediately  notify  Coast  of the  return  of any
Inventory,  specifying the reason for such return, the location and condition of
the returned  Inventory,  and on Coast's request deliver such returned Inventory
to Coast.

      7.8  Verification.  Coast may, from time to time, verify directly with the
respective  Account Debtors the validity,  amount and other matters  relating to
the Receivables, by means of mail, telephone or otherwise, either in the name of
Coast or such other name as Coast may choose.

      7.9 No Liability.  Coast shall not under any  circumstances be responsible
or liable for any shortage or discrepancy  in, damage to, or loss or destruction
of,  any  goods,  the  sale  or  other  disposition  of  which  gives  rise to a
Receivable,  or for any error,  act,  omission or delay of any kind occurring in
the  settlement,  failure to  settle,  collection  or  failure  to  collect  any
Receivable,  or for settling any Receivable in good faith for less than the full
amount  thereof,  nor  shall  Coast  be  deemed  to be  responsible  for  any of
Borrower's  obligations  under  any  contract  or  agreement  giving  rise  to a
Receivable.  Nothing herein shall, however, relieve Coast from liability for its
own gross negligence or willful misconduct.

8.    ADDITIONAL DUTIES OF THE BORROWER.

      8.1  Financial  and Other.  Borrower  shall at all times  comply  with the
financial and other covenants set forth in the Schedule.

      8.2  Insurance.  Borrower  shall,  at all times insure all of the tangible
personal  property  Collateral  and carry such other  business  insurance,  with
insurers  reasonably  acceptable to Coast, in such form and amounts as Coast may
reasonably  require,  and Borrower  shall provide  evidence of such insurance to
<PAGE>
Coast,  so that Coast is satisfied that such insurance is, at all times, in full
force and effect. All liability  insurance policies of Borrower shall name Coast
as an  additional  insured,  and all  property  casualty  and related  insurance
policies of Borrower shall name Coast as a loss payee thereon and Borrower shall
cause a lender's loss payee endorsement in form reasonably  acceptable to Coast.
Upon  receipt of the  proceeds  of any such  insurance,  Coast  shall apply such
proceeds in reduction of the  Obligations  as Coast shall  determine in its sole
discretion,  except  that,  provided no Default or Event of Default has occurred
and is  continuing,  Coast shall  release to Borrower  insurance  proceeds  with
respect to Equipment totaling less than the amount set forth in Section 8 of the
Schedule,  which  shall be  utilized  by  Borrower  for the  replacement  of the
Equipment  with respect to which the  insurance  proceeds  were paid.  Coast may
require reasonable  assurance that the insurance proceeds so released will be so
used. If Borrower fails to provide or pay for any  insurance,  Coast may, but is
not obligated to, obtain the same at Borrower's expense. Borrower shall promptly
deliver to Coast copies of all reports made to insurance companies.

      8.3  Reports.  Borrower,  at its  expense,  shall  provide  Coast with the
written  reports set forth in Section 8 of the Schedule,  and such other written
reports  with  respect  to  Borrower  (including  budgets,   sales  projections,
operating plans and other financial documentation),  as Coast shall from time to
time reasonably specify.

      8.4 Access to Collateral, Books and Records. At reasonable times but under
ordinary  circumstances  not  more  frequently  than  quarterly  and on one  (1)
Business  Day's notice,  Coast,  or its agents,  shall have the right to perform
Audits.  Coast may  conduct  more  frequent  Audits if Coast,  in its good faith
discretion,  deems the same to be  necessary  or  appropriate.  Coast shall take
reasonable steps to keep confidential all confidential  information  obtained in
any Audit,  but Coast shall have the right to disclose any such  information  to
its auditors,  regulatory agencies, and attorneys,  and pursuant to any subpoena
or other legal process. The Audits shall be at Borrower's expense and the charge
for the Audits shall be Seven Hundred  Fifty  Dollars  ($750) per person per day
(or such higher amount as shall represent  Coast's then current  standard charge
for the same), plus reasonable  out-of-pocket expenses.  Borrower will not enter
into any agreement  with any accounting  firm,  service bureau or third party to
store Borrower's books or records at any location other than Borrower's Address,
without first  notifying  Coast of the same and obtaining the written  agreement
from such accounting firm, service bureau or other third party to give Coast the
same  rights with  respect to access to books and records and related  rights as
Coast has under this Loan  Agreement.  Borrower  shall  also take all  necessary
steps  to  assure  that  its  material  accounting  and  software,  systems  and
applications,  and those of its  accounting  firm,  service  bureau or any other
third  party  vendor  or  supplier,  will,  on a timely  basis,  adequately  and
completely address the Year 2000 Problem in all material aspects.

      8.5 Negative Covenants.  Borrower shall not, without Coast's prior written
consent, do any of the following:

            (a)  merge  or  consolidate   with  another  entity,   except  in  a
transaction  in which (i) the owners of the Borrower hold at least fifty percent
(50%) of the ownership  interest in the surviving entity  immediately after such
merger or consolidation, and (ii) the Borrower is the surviving entity;

            (b)  acquire  any  assets,  except  (i) in the  ordinary  course  of
business, or (ii) in a transaction or a series of transactions not involving the
payment of an aggregate amount in excess of the amount set forth in Section 8 of
the Schedule;
<PAGE>
            (c) enter into any other transaction  outside the ordinary course of
business;

            (d) sell or transfer any Collateral, except for the sale of finished
Inventory in the ordinary course of Borrower's business, and except for the sale
of obsolete or unneeded Equipment in the ordinary course of business;

            (e) store any Inventory or other Collateral with any warehouseman or
other third party;

            (f)  sell  any  Inventory  on  a  sale-or-return,  guaranteed  sale,
consignment, or other contingent basis;

            (g) make any loans of any money or other assets, except (i) advances
to  customers or  suppliers  in the  ordinary  course of  business,  (ii) travel
advances, employee relocation loans and other employee loans and advances in the
ordinary  course  of  business,  and  (iii)  loans to  employees,  officers  and
directors for the purpose of purchasing equity securities of the Borrower;

            (h) incur any debts,  except to VIALOG,  outside the ordinary course
of business, which would have a Material Adverse Effect;

            (i)  guarantee  or  otherwise  become  liable  with  respect  to the
obligations of another party or entity;

            (j) pay or declare any dividends or  distributions  on the ownership
interests in Borrower except for (i) dividends or  distributions  payable solely
in stock form of ownership  interests  in Borrower and (ii)  dividends to VIALOG
if,   when  and  to  the   extent   required   by   VIALOG   in  order  to  make
regularly-scheduled payments of principal and interest on the $75,000,000.00, 12
3/4% Senior Notes issued by VIALOG,  provided such  dividends or payments on the
12 3/4%  Senior  Notes  would not  result in a Default  or Event of  Default  by
Borrower or VIALOG with respect to any of their respective obligations to Coast.
Borrower  may make loans,  advances  and  transfers  to VIALOG  provided (i) the
Borrower is and will continue to be able to generally pay its obligations as and
when due;  and (ii) VIALOG owns all of the  outstanding  ownership  interests in
Borrower as of the time of the loan,  advance or transfer.  Neither Borrower nor
VIALOG shall,  without the prior written consent of Coast,  which consent may be
granted  or  withheld  by Coast in its sole  and  absolute  discretion,  redeem,
purchase or retire all or any portion of the Senior  Notes prior to November 15,
2001,  unless  such  redemption,  purchase  or  retirement  is (i) funded by the
proceeds of an equity offering or (ii) the proceeds of a debt offering where the
debt  offering  is  subordinated  in all  respects to Coast  including,  but not
limited to Coast`s claims, Coast's rights to payment, and Coast's Collateral.

            (k) make any change in Borrower's capital structure which would have
a Material Adverse Effect; or

            (l) dissolve or elect to dissolve.

      Transactions  permitted by the  foregoing  provisions  of this Section are
only permitted if no Default or Event of Default is continuing or would occur as
a result of such transaction.
<PAGE>
      8.6 Litigation  Cooperation.  Should any third-party suit or proceeding be
instituted  by or against  Coast with respect to any  Collateral  or relating to
Borrower,  Borrower shall, without expense to Coast, make available Borrower and
its officers,  employees  and agents and  Borrower's  books and records,  to the
extent that Coast may deem them  reasonably  necessary  in order to prosecute or
defend any such suit or proceeding.

      8.7 Further  Assurances.  Borrower agrees,  at its expense,  on request by
Coast,  to  execute  all  documents  and take all  actions,  as Coast,  may deem
reasonably  necessary  or  useful  in  order to  perfect  and  maintain  Coast's
perfected security interest in the Collateral,  and in order to fully consummate
the transactions contemplated by this Agreement.

9.    TERM.

      9.1  Maturity  Date.  This  Agreement  shall  continue in effect until the
Maturity Date;  provided that the Maturity Date shall automatically be extended,
and this Agreement shall  automatically  and continuously  renew, for successive
additional terms of one year each,  unless one party gives written notice to the
other,  not less than  ninety (90) days prior to the  Maturity  Date or the next
Renewal Date,  that such party elects to terminate this  Agreement  effective on
the Maturity Date or such next Renewal Date. If this  Agreement is renewed under
this Section 9.1,  Borrower shall pay to Coast a Renewal Fee in the amount shown
in Section 3 of the  Schedule.  The  Renewal Fee shall be due and payable on the
Renewal  Date and  thereafter  shall bear  interest  at a rate equal to the rate
applicable to the Receivable Loans.

      9.2 Early  Termination.  This  Agreement  may be  terminated  prior to the
Maturity  Date as follows:  (a) by Borrower,  effective  three (3) Business Days
after written notice of  termination  is given to Coast;  or (b) by Coast at any
time after the  occurrence  of an Event of Default,  without  notice,  effective
immediately.  If this Agreement is terminated by Borrower or by Coast under this
Section 9.2,  Borrower shall pay to Coast an Early Termination Fee in the amount
shown in Section 3 of the Schedule.  The Early  Termination Fee shall be due and
payable on the effective date of termination and thereafter  shall bear interest
at a rate equal to the rate applicable to the Receivable Loans.

      9.3  Payment  of  Obligations.  On the  Maturity  Date  or on any  earlier
effective  date of  termination,  Borrower  shall  pay and  perform  in full all
Obligations, whether evidenced by installment notes or otherwise, and whether or
not all or any part of such  Obligations  are  otherwise  then due and  payable.
Notwithstanding  any  termination  of this  Agreement,  all of Coast's  security
interests in all of the  Collateral  and all of the terms and provisions of this
Agreement  shall  continue in full force and effect until all  Obligations  have
been paid and performed in full;  provided that,  without limiting the fact that
Loans are subject to the discretion of Coast, Coast may, in its sole discretion,
refuse to make any further Loans after termination.  No termination shall in any
way  affect  or  impair  any  right or  remedy  of  Coast,  nor  shall  any such
termination  relieve  Borrower  of any  Obligation  to  Coast,  until all of the
Obligations  have been paid and performed in full.  Upon payment and performance
in full of all the Obligations  and  termination of this Agreement,  Coast shall
promptly deliver to Borrower termination statements,  requests for reconveyances
and such other documents as may be required to fully terminate  Coast's security
interests.
<PAGE>
      9.4 Revivor.  Notwithstanding Section 9.3 or any other provision contained
in any of the Loan  Documents  to the  contrary,  if any claim is ever made upon
Coast by any  claimant  (except  for lender  liability  or like claims by VIALOG
and/or  the  Borrower),  for  repayment  or  recovery  of any  amount or amounts
received  by Coast in payment of or on  account  of any of the  Indebtedness  or
because of any claim that any such payment  constituted a preferential  transfer
or fraudulent  conveyance,  or for any other claim of any kind, and Coast repays
all or part of said  amount by reason  of any  judgment,  decree or order of any
court  or  administrative  body  having  jurisdiction  over  Coast or any of its
property,  or by  reason  of any  settlement  or  compromise  of any such  claim
effected by Coast with any such claimant,  then and in any such event,  Borrower
agrees that any such judgment,  decree, order, settlement or compromise shall be
binding  upon  Borrower,  notwithstanding  any prior  release of Borrower or any
Guarantor or the cancellation of any note or other instrument  evidencing any of
the Indebtedness, or any release of any of the Indebtedness,  and Borrower shall
be and remain  liable to Coast  hereunder for the amount so repaid or recovered,
to the same extent as if such amount had never originally been received by Coast
(the Revived Obligations").  The Revived Obligations of Borrower hereunder shall
be immediately due and payable,  shall bear interest at the rate herein provided
and secured by the Collateral. 

10.   EVENTS OF DEFAULT AND REMEDIES.

      10.1 Events of Default.  The  occurrence  of any of the  following  events
shall constitute an "Event of Default" under this Agreement,  and Borrower shall
give Coast immediate written notice thereof:

            (a) Any warranty,  representation,  statement, report or certificate
made or delivered to Coast by Borrower or any of Borrower's officers,  employees
or agents, now or in the future,  shall be untrue or misleading and results in a
Material Adverse Effect; or

            (b)  Borrower  shall  fail to pay when due any Loan or any  interest
thereon or any other monetary Obligation; or

            (c) the total Loans and other  Obligations  outstanding  at any time
shall exceed the Credit Limit; or

            (d)  Borrower  shall fail to deliver the proceeds of  Collateral  to
Coast as provided in Section  7.5 above,  or shall fail to give Coast  access to
its books and records or Collateral  as provided in Section 8.4 above,  or shall
breach any negative covenant set forth in Section 8.5 above; or

            (e) Borrower  shall fail to comply with the financial  covenants (if
any) set forth in the  Schedule or shall fail to perform any other  non-monetary
Obligation which by its nature cannot be cured; or

            (f)   Borrower   shall  fail  to  perform  any  other   non-monetary
Obligation,  which  failure is not cured within ten (10) Business Days after the
date due; or

            (g) Any levy, assessment,  attachment,  seizure, lien or encumbrance
(other than a Permitted Lien) is made on all or any part of the Collateral which
is not cured within fifteen (15) days after the occurrence of the same; or

            (h) any  default or event of  default  occurs  under any  obligation
secured by a  Permitted  Lien,  which is not cured  within any  applicable  cure
period or waived in writing by the holder of the Permitted Lien; or
<PAGE>
            (i) Borrower breaches any material contract or obligation including,
but not limited to, the Senior Notes, which has or may reasonably be expected to
have a Material Adverse Effect; or

            (j)  Dissolution,  termination of existence,  insolvency or business
failure of Borrower or any guarantor of any of the  Obligations;  or appointment
of a receiver,  trustee or  custodian,  for all or any part of the  property of,
assignment  for  the  benefit  of  creditors  by,  or  the  commencement  of any
proceeding  by Borrower or any  guarantor  of any of the  Obligations  under any
reorganization,  bankruptcy,  insolvency,  arrangement,  readjustment  of  debt,
dissolution or  liquidation  law or statute of any  jurisdiction,  now or in the
future in effect; or

            (k) the  commencement  of any  proceeding  against  Borrower  or any
guarantor  of any of  the  Obligations  under  any  reorganization,  bankruptcy,
insolvency, arrangement, readjustment of debt, dissolution or liquidation law or
statute of any  jurisdiction,  now or in the future in effect,  which is (i) not
timely  controverted,  or  (ii)  not  cured  by  the  dismissal  thereof  within
forty-five  (45) days after the date commenced;  or within any applicable  grace
period; or

            (l)  revocation  or  termination  of,  or  limitation  or  denial of
liability  upon, any guaranty of the Obligations or any attempt to do any of the
foregoing,  or  commencement  of  proceedings  by  any  guarantor  of any of the
Obligations under any bankruptcy or insolvency law; or

            (m)  revocation  or  termination  of,  or  limitation  or  denial of
liability  upon, any pledge of any  certificate of deposit,  securities or other
property or asset of any kind pledged by any third party to secure any or all of
the Obligations,  or any attempt to do any of the foregoing,  or commencement of
proceedings  by or  against  any  such  third  party  under  any  bankruptcy  or
insolvency law; or

            (n) Borrower or any  guarantor of any of the  Obligations  makes any
payment on account of any indebtedness or obligation which has been subordinated
to the  Obligations,  other than as  permitted in the  applicable  subordination
agreement,   or  if  any  Person  who  has  subordinated  such  indebtedness  or
obligations terminates or in any way limits his subordination agreement; or

            (o) Except as permitted under Section 8.5(a),  Borrower shall suffer
or experience any Change of Control without Coast's prior written consent, which
consent shall be in the  discretion  of Coast in the exercise of its  reasonable
business judgment; or

            (p) Borrower  shall  generally not pay its debts as they become due,
or Borrower  shall  conceal,  remove or transfer any part of its property,  with
intent to hinder, delay or defraud its creditors, or make or suffer any transfer
of any of its property which may be fraudulent under any bankruptcy,  fraudulent
conveyance or similar law; or
<PAGE>
            (q) there  shall be any  Material  Adverse  Effect.  Coast may cease
making any Loans or extending any credit  hereunder during any of the above cure
periods.

      10.2 Remedies.  Upon the occurrence,  and during the  continuance,  of any
Event of Default, Coast, at its option, and without notice or demand of any kind
(all of which are hereby expressly  waived by Borrower),  may do any one or more
of the following:

            (a) Cease  making Loans or  otherwise  extending  credit to Borrower
under this Agreement or any other document or agreement;

            (b) Accelerate and declare all or any part of the  Obligations to be
immediately  due,  payable  and  performable,  notwithstanding  any  deferred or
installment  payments  allowed by any  instrument  evidencing or relating to any
Obligation;

            (c) Take possession of any or all of the Collateral  wherever it may
be found, and for that purpose Borrower hereby authorizes Coast without judicial
process to enter onto any of Borrower's premises without  interference to search
for, take possession of, keep, store or remove any of the Collateral, and remain
on the  premises or cause a  custodian  to remain on the  premises in  exclusive
control  thereof,  without  charge  for so long as  Coast  deems  it  reasonably
necessary  in order  to  complete  the  enforcement  of its  rights  under  this
Agreement or any other agreement;  provided,  however, that should Coast seek to
take  possession of any of the  Collateral  by Court  process,  Borrower  hereby
irrevocably waives:

                  (i) any bond  and any  surety  or  security  relating  thereto
      required by any  statute,  court rule or  otherwise as an incident to such
      possession;

                  (ii) any demand for possession  prior to the  commencement  of
      any suit or action to recover possession thereof; and

                  (iii) any requirement that Coast retain possession of, and not
      dispose of, any such Collateral until after trial or final judgment;

            (d) Require  Borrower to assemble any or all of the  Collateral  and
make it available to Coast at places  designated  by Coast which are  reasonably
convenient to Coast and Borrower, and to remove the Collateral to such locations
as Coast may deem advisable;

            (e)  Complete  the  processing,   manufacturing  or  repair  of  any
Collateral  prior to a  disposition  thereof  and,  for such purpose and for the
purpose  of  removal,  Coast  shall have the right to use  Borrower's  premises,
vehicles,  hoists,  lifts,  cranes,  equipment  and all other  property  without
charge. Coast is hereby granted a license or other right to use, without charge,
Borrower's  labels,  patents,  copyrights,  rights  of use of  any  name,  trade
secrets, trade names, trademarks,  service marks, and advertising matter, or any
property of a similar nature,  as it pertains to the  Collateral,  in completing
production of,  advertising  for sale, and selling any Collateral and Borrower's
rights under all licenses and all  franchise  agreements  shall inure to Coast's
benefit;
<PAGE>
            (f) Sell,  lease or otherwise  dispose of any of the Collateral,  in
its  condition  at the time  Coast  obtains  possession  of it or after  further
manufacturing, processing or repair, at one or more public and/or private sales,
in lots or in bulk, for cash,  exchange or other property,  or on credit, and to
adjourn  any  such  sale  from  time to time  without  notice  other  than  oral
announcement  at the time  scheduled  for sale.  Coast  shall  have the right to
conduct such disposition on Borrower's premises without charge, for such time or
times as Coast deems reasonable,  or on Coast's  premises,  or elsewhere and the
Collateral need not be located at the place of  disposition.  Coast may directly
or through any affiliated  company  purchase or lease any Collateral at any such
public  disposition,  and if permissible  under  applicable  law, at any private
disposition.  Any sale or other  disposition  of  Collateral  shall not  relieve
Borrower of any liability Borrower may have if any Collateral is defective as to
title or physical condition or otherwise at the time of sale;

            (g) Demand  payment  of, and  collect  any  Receivables  and General
Intangibles  comprising  Collateral  and,  in  connection  therewith,   Borrower
irrevocably  authorizes  Coast  to  endorse  or  sign  Borrower's  name  on  all
collections,  receipts,  instruments and other documents,  to take possession of
and open mail  addressed to Borrower  and remove  therefrom  payments  made with
respect to any item of the Collateral or proceeds thereof,  and, in Coast's sole
discretion,  to grant  extensions of time to pay,  compromise  claims and settle
Receivables and the like for less than face value;

            (h) Demand and receive  possession of any of Borrower's  federal and
state income tax returns and the books and records  utilized in the  preparation
thereof or referring thereto; and

            (i) Require all payments  representing  Coast's  Collateral  and the
proceeds therefrom, be paid to Coast and not to the Senior Notes.

      All  reasonable   attorneys'  fees,  expenses,   costs,   liabilities  and
obligations incurred by Coast (including reasonable attorneys' fees and expenses
incurred in connection with  bankruptcy)  with respect to the foregoing shall be
due from  the  Borrower  to  Coast  on  demand.  Coast  may  charge  the same to
Borrower's loan account, and the same shall thereafter bear interest at the same
rate as is applicable to the Receivable  Loans.  Without limiting any of Coast's
rights and remedies, from and after the occurrence and during the continuance of
any Event of Default,  the interest rate applicable to the Obligations  shall be
increased by an additional three percent per annum.

      10.3 Standards for  Determining  Commercial  Reasonableness.  Borrower and
Coast  to the  maximum  extent  permitted  by law  agree  that a sale  or  other
disposition  (collectively,  "Sale") of any  Collateral  which complies with the
following standards will conclusively be deemed to be commercially reasonable:

            (a) Notice of the sale is given to  Borrower at least seven (7) days
prior to the  sale,  and,  in the case of a public  sale,  notice of the sale is
published  at least  seven (7) days  before the sale in a  newspaper  of general
circulation in the county where the sale is to be conducted;

            (b)  Notice  of  the  sale  describes  the  collateral  in  general,
non-specific terms;

            (c) The sale is conducted at a place  designated  by Coast,  with or
without the Collateral being present;

            (d) The sale  commences  at any time between 8:00 a.m. and 6:00 p.m.
Los Angeles, California time;
<PAGE>
            (e) Payment of the purchase  price in cash or by cashier's  check or
wire transfer is required; and

            (f) With  respect  to any sale of any of the  Collateral,  Coast may
(but is not obligated to) direct any prospective purchaser to ascertain directly
from Borrower any and all information concerning the same.

      Coast shall be free to employ  other  methods of noticing  and selling the
Collateral, in its discretion, if they are commercially reasonable.

      10.4 Power of Attorney.  Borrower grants to Coast an irrevocable  power of
attorney  coupled with an interest,  authorizing  and  permitting  Coast (acting
through any of its  employees,  attorneys or agents) at any time, at its option,
but without  obligation,  with or without notice to Borrower,  and at Borrower's
expense, to do any or all of the following, in Borrower's name or otherwise, but
Coast  agrees to exercise  the  following  powers in a  commercially  reasonable
manner:

            (a) Execute on behalf of Borrower any  documents  that Coast may, in
its sole  discretion,  deem  advisable in order to perfect and maintain  Coast's
security interest in the Collateral, or in order to exercise a right of Borrower
or Coast,  or in order to fully  consummate  all the  transactions  contemplated
under this Agreement, and all other present and future agreements;

            (b) Upon the occurrence,  and during the continuance of any Event of
Default, execute on behalf of Borrower any document exercising,  transferring or
assigning any option to purchase,  sell or otherwise  dispose of or to lease (as
lessor  or  lessee)  any real or  personal  property  which  is part of  Coast's
Collateral or in which Coast has an interest;

            (c) Upon the occurrence,  and during the continuance of any Event of
Default, execute on behalf of Borrower, any invoices relating to any Receivable;

            (d)  Execute on behalf of  Borrower,  any draft  against any Account
Debtor and any notice to any Account  Debtor,  any proof of claim in bankruptcy,
any  Notice  of Lien,  claim of  mechanic's,  materialman's  or other  lien,  or
assignment or satisfaction of mechanic's, materialman's or other lien;

            (e) Take  control  in any  manner of any cash or  non-cash  items of
payment  or  proceeds  of  Collateral;  endorse  the name of  Borrower  upon any
instruments, or documents,  evidence of payment or Collateral that may come into
Coast's possession;

            (f) Endorse all checks and other  forms of  remittances  received by
Coast;

            (g) Pay, contest or settle any lien, charge,  encumbrance,  security
interest and adverse claim in or to any of the Collateral, or any judgment based
thereon, or otherwise take any action to terminate or discharge the same;

            (h) Upon the occurrence, and during the continuance, of any Event of
Default,  grant  extensions  of  time  to  pay,  compromise  claims  and  settle
Receivables  and  General  Intangibles  for less than face value and execute all
releases and other documents in connection therewith;
<PAGE>
            (i) Pay any sums  required  on  account  of  Borrower's  taxes or to
secure the release of any liens therefor,  or both, which Coast, in the exercise
of its good faith  discretion  and judgment  deems  necessary or  appropriate to
protect its rights, interests, or priorities;

            (j) Settle and adjust,  and give  releases of, any  insurance  claim
that relates to any of the Collateral and obtain payment therefor;

            (k) Instruct any third party having  custody or control of any books
or records  belonging to, or relating to, Borrower to give Coast the same rights
of  access  and other  rights  with  respect  thereto  as Coast  has under  this
Agreement; and

            (l) Take any action or pay any sum required of Borrower  pursuant to
this Agreement and any other present or future agreements.

      Any and  all  sums  paid  and any  and  all  reasonable  costs,  expenses,
liabilities,  obligations  and  reasonable  attorneys'  fees  incurred  by Coast
(including   reasonable  attorneys'  fees  and  expenses  incurred  pursuant  to
bankruptcy)  with respect to the foregoing  shall be added to and become part of
the Obligations,  and shall be payable on demand. Coast may charge the foregoing
to Borrower's loan account and the foregoing  shall  thereafter bear interest at
the same rate  applicable  to the  Receivable  Loans.  In no event shall Coast's
rights  under the  foregoing  power of attorney or any of Coast's  other  rights
under  this  Agreement  be deemed to  indicate  that  Coast is in control of the
business,  management or properties of Borrower.  Borrower shall pay, indemnify,
defend, and hold Coast and each of its officers, directors,  employees, counsel,
agents, and  attorneys-in-fact  (each, an "Indemnified Person") harmless (to the
fullest extent  permitted by law) from and against any and all claims,  demands,
suits, actions, investigations, proceedings, and damages, and all attorneys fees
and  disbursements  and other costs and expenses actually incurred in connection
therewith  (as and when they are  incurred and  irrespective  of whether suit is
brought), at any time asserted against, imposed upon, or incurred by any of them
in  connection  with or as a result of or  related to the  execution,  delivery,
enforcement,  performance,  and  administration  of this Agreement and any other
Loan Documents or the transactions  contemplated herein, and with respect to any
investigation,  litigation,  or proceeding related to this Agreement,  any other
Loan  Document,  or the use of the  proceeds  of the credit  provided  hereunder
(irrespective of whether any Indemnified Person is a party thereto), or any act,
omission,  event  or  circumstance  in  any  manner  related  thereto  (all  the
foregoing, collectively, the "Indemnified Liabilities").  Borrower shall have no
obligation to any Indemnified  Person  hereunder with respect to any Indemnified
Liability  that a court of competent  jurisdiction  finally  determines  to have
resulted  from the gross  negligence or willful  misconduct of such  Indemnified
Person.  This provision  shall survive the termination of this Agreement and the
repayment of the Obligations.

      10.5 Application of Proceeds.  All proceeds  realized as the result of any
sale of the Collateral shall be applied by Coast first to the reasonable  costs,
expenses,  liabilities,  obligations and reasonable  attorneys' fees incurred by
Coast in the exercise of its rights under this Agreement, second to the interest
due upon any of the Obligations,  and third to the principal of the Obligations,
in such order as Coast shall determine in its sole discretion. Any surplus shall
be paid to Borrower or other persons legally  entitled  thereto;  Borrower shall
remain liable to Coast for any deficiency.  If, Coast,  in its sole  discretion,
directly  or  indirectly   enters  into  a  deferred  payment  or  other  credit
transaction  with any purchaser at any sale of Collateral,  Coast shall have the
option,  exercisable at any time, in its sole discretion, of either reducing the
Obligations by the principal amount of purchase price or deferring the reduction
of the Obligations until the actual receipt by Coast of the cash therefor.
<PAGE>
      10.6 Remedies Cumulative. In addition to the rights and remedies set forth
in this Agreement, Coast shall have all the other rights and remedies accorded a
secured party in equity,  under the Code, and under all other  applicable  laws,
and under any other  instrument or agreement  now or in the future  entered into
between Coast and Borrower,  and all of such rights and remedies are  cumulative
and none is exclusive.  Exercise or partial  exercise by Coast of one or more of
its  rights or  remedies  shall not be deemed an  election,  nor bar Coast  from
subsequent  exercise or partial  exercise of any other rights or  remedies.  The
failure or delay of Coast to exercise  any rights or remedies  shall not operate
as a waiver  thereof,  but all rights and remedies  shall continue in full force
and  effect  until  all of the  Obligations  have  been  indefeasibly  paid  and
performed.

11.   GENERAL PROVISIONS.

      11.1 Interest Computation.  In computing interest on the Obligations,  all
checks,  wire transfers and other items of payment  received by Coast (including
proceeds of Receivables  and payment of the Obligations in full) shall be deemed
applied by Coast on account of the  Obligations  three (3)  Business  Days after
receipt by Coast of  immediately  available  funds,  and,  for  purposes  of the
foregoing, any such funds received after 10:30 AM Los Angeles,  California time,
on any day shall be deemed  received on the next  Business  Day.  Coast shall be
entitled  to charge  Borrower's  account  for such  three (3)  Business  Days of
"clearance"  or "float" at the rate(s) set forth in Section 3 of the Schedule on
all checks,  wire  transfers  and other items  received by Coast,  regardless of
whether such three (3) Business Days of "clearance" or "float"  actually  occur,
and shall be deemed to be the  equivalent of charging three (3) Business Days of
interest on such  collections.  This  across-the-board  three (3)  Business  Day
clearance or float charge on all  collections is  acknowledged by the parties to
constitute an integral  aspect of the pricing of Coast's  financing of Borrower.
Except for cash  payments,  Coast  shall not,  however,  be  required  to credit
Borrower's  account  for the  amount  of any  item or form of  payment  which is
unsatisfactory to Coast in its sole discretion,  and Coast may charge Borrower's
loan  account  for the amount of any item of payment  which is returned to Coast
unpaid.

      11.2 Application of Payments.  Subject to Section 7.5 hereof, all payments
with respect to the Obligations  may be applied,  and in Coast's sole discretion
reversed and re-applied,  to the Obligations,  in such order and manner as Coast
shall determine in its sole discretion.

      11.3  Charges to  Accounts.  Coast may, in its  discretion,  require  that
Borrower pay monetary Obligations in cash to Coast, or charge them to Borrower's
Loan  account,  in which event they will bear  interest from the date due to the
date paid at the same rate applicable to the Loans.

      11.4 Monthly  Accountings.  Coast shall provide  Borrower  monthly with an
account of  advances,  charges,  expenses  and  payments  made  pursuant to this
Agreement.  Such  account  shall be deemed  correct,  accurate  and  binding  on
Borrower  and an account  stated  (except for  reverses  and  reapplications  of
payments made and  corrections of errors  discovered by Coast),  unless Borrower
notifies  Coast in writing to the  contrary  within  thirty (30) days after each
account is rendered, describing the nature of any alleged errors or omissions.

      11.5  Notices.  All notices to be given under this  Agreement  shall be in
writing and shall be given either  personally or by reputable  private  delivery
service or by regular  first-class  mail,  facsimile  or  certified  mail return
receipt  requested,  addressed to Coast at the addresses shown in the heading to
<PAGE>
this Agreement, or to Borrower c/o VIALOG, 35 New England Business Center, Suite
160,  Hanover,  MA 01810,  or at any other address  designated in writing by one
party to the other party.  Notices to Coast shall be directed to the  Commercial
Finance  Division,  to the  attention  of the  Division  Manager or the Division
Credit Manager.  All notices shall be deemed to have been given upon delivery in
the case of notices  personally  delivered,  faxed (at time of  confirmation  of
transmission),  or at the expiration of one (1) Business Day following  delivery
to the private delivery service,  or two (2) Business Days following the deposit
thereof in the United States mail, with postage prepaid.

      11.6  Severability.  Should any provision of this Agreement be held by any
court of competent  jurisdiction to be void or unenforceable,  such defect shall
not affect the remainder of this  Agreement,  which shall continue in full force
and effect.

      11.7  Integration.  This  Agreement  and such  other  written  agreements,
documents  and  instruments  as may be executed in  connection  herewith are the
final,  entire and complete  agreement  between Borrower and Coast and supersede
all  prior  and  contemporaneous   negotiations  and  oral  representations  and
agreements,  all of which are merged and integrated in this Agreement. There are
no oral understandings,  representations or agreements between the parties which
are not set forth in this Agreement or in other written agreements signed by the
parties in connection herewith.

      11.8  Waivers.  The  failure  of Coast  at any  time or  times to  require
Borrower to strictly  comply with any of the provisions of this Agreement or any
other present or future agreement  between Borrower and Coast shall not waive or
diminish  any  right of Coast  later to demand  and  receive  strict  compliance
therewith.  Any  waiver of any  Default  shall  not  waive or  affect  any other
Default,  whether prior or subsequent,  and whether or not similar.  None of the
provisions  of  this  Agreement  or any  other  agreement  now or in the  future
executed by Borrower and  delivered to Coast shall be deemed to have been waived
by any act or  knowledge  of Coast or its  agents  or  employees,  but only by a
specific  written waiver signed by an authorized  officer of Coast and delivered
to Borrower.  Borrower waives demand,  protest,  notice of protest and notice of
default or  dishonor,  notice of payment and  nonpayment,  release,  compromise,
settlement,  extension or renewal of any commercial paper, instrument,  account,
General  Intangible,  document  or  guaranty  at any time held by Coast on which
Borrower  is or may in any way be  liable,  and  notice of any  action  taken by
Coast, unless expressly required by this Agreement.

      11.9 No Liability for Ordinary  Negligence.  Neither Coast, nor any of its
directors, officers, employees, agents, attorneys or any other Person affiliated
with or representing  Coast shall be liable for any claims,  demands,  losses or
damages, of any kind whatsoever, made, claimed, incurred or suffered by Borrower
or any other  party  through the  ordinary  negligence  of Coast,  or any of its
directors, officers, employees, agents, attorneys or any other Person affiliated
with or  representing  Coast,  but  nothing  herein  shall  relieve  Coast  from
liability for its own gross negligence or willful misconduct.

      11.10  Amendment.  The terms and  provisions of this  Agreement may not be
waived  or  amended,  except  in a  writing  executed  by  Borrower  and a  duly
authorized officer of Coast.

      11.11  Time of  Essence..  Time is of the  essence in the  performance  by
Borrower of each and every obligation under this Agreement.
<PAGE>
      11.12  Attorneys Fees,  Costs and Charges.  Borrower shall reimburse Coast
for all reasonable  attorneys'  fees (including  reasonable  attorneys' fees and
expenses  incurred  pursuant to bankruptcy) and all filing,  recording,  search,
title insurance, appraisal, audit, and other reasonable costs incurred by Coast,
pursuant to, or in connection  with, or relating to this  Agreement  (whether or
not a  lawsuit  is  filed),  including,  but  not  limited  to,  any  reasonable
attorneys'  fees and costs  (including  reasonable  attorneys' fees and expenses
incurred  pursuant to  bankruptcy)  Coast  incurs in order to do the  following:
prepare  and  negotiate  this  Agreement  and  the  documents  relating  to this
Agreement;  obtain legal advice in connection  with this  Agreement or Borrower;
enforce,  or seek to enforce,  any of its rights;  prosecute actions against, or
defend actions by, Account Debtors; commence, intervene in, or defend any action
or  proceeding;  initiate any complaint to be relieved of the automatic  stay in
bankruptcy;  file or prosecute any probate claim, bankruptcy claim,  third-party
claim, or other claim;  examine,  audit, copy, and inspect any of the Collateral
or any of Borrower's books and records;  protect,  obtain  possession of, lease,
dispose of, or otherwise  enforce Coast's security  interest in, the Collateral;
and otherwise represent Coast in any litigation relating to Borrower.  If either
Coast or Borrower files any lawsuit against the other  predicated on a breach of
this Agreement, the prevailing party in such action shall be entitled to recover
its reasonable costs and attorneys' fees (including  reasonable  attorneys' fees
and expenses  incurred  pursuant to bankruptcy),  including (but not limited to)
reasonable  attorneys' fees and costs incurred in the enforcement of,  execution
upon or defense of any order, decree, award or judgment. Borrower shall also pay
Coast's standard  charges for returned checks and for wire transfers,  in effect
from time to time. All reasonable  attorneys' fees, costs and charges (including
reasonable  attorneys'  fees and expenses  incurred  pursuant to bankruptcy) and
other fees,  costs and  charges to which Coast may be entitled  pursuant to this
Agreement  may be  charged  by  Coast  to  Borrower's  loan  account  and  shall
thereafter bear interest at the same rate as the Receivable Loans.

      11.13 Benefit of Agreement.  The  provisions  of this  Agreement  shall be
binding  upon and inure to the benefit of the  respective  successors,  assigns,
heirs,  beneficiaries  and  representatives  of  Borrower  and Coast;  provided,
however,  that  Borrower may not assign or transfer any of its rights under this
Agreement  without  the  prior  written  consent  of Coast,  and any  prohibited
assignment  shall be void. No consent by Coast to any  assignment  shall release
Borrower from its liability for the Obligations. Coast may assign its rights and
delegate its duties  hereunder  without the consent of Borrower.  Coast reserves
the right to syndicate  all or a portion of the  transaction  created  herein or
sell, assign,  transfer,  negotiate,  or grant participations in all or any part
of, or any interest in Coast's rights and benefits hereunder. In connection with
such syndication,  assignment or participation, Coast may disclose all documents
and  information  which Coast now or hereafter  may have relating to Borrower or
Borrower's  business,  subject to Coast  taking  reasonable  steps to cause such
potential  assignees,  participants or syndication  parties to keep confidential
all confidential information relating to Borrower or its business. To the extent
that Coast assigns its rights and obligations hereunder to a third Person, Coast
thereafter shall be released from such assigned obligations to Borrower.

      11.14 Paragraph Headings;  Construction.  Paragraph headings are only used
in this  Agreement  for  convenience.  Borrower and Coast  acknowledge  that the
headings  may not  describe  completely  the  subject  matter of the  applicable
paragraph, and the headings shall not be used in any manner to construe,  limit,
define  or  interpret  any  term  or  provision  of  this  Agreement.  The  term
"including",  whenever used in this  Agreement,  shall mean  "including  but not
<PAGE>
limited to." This Agreement has been fully  reviewed and negotiated  between the
parties  and no  uncertainty  or  ambiguity  in any  term or  provision  of this
Agreement shall be construed  strictly  against Coast or Borrower under any rule
of construction or otherwise.

      11.15 Governing Law; Jurisdiction;  Venue. This Agreement and all acts and
transactions  hereunder  and all rights and  obligations  of Coast and  Borrower
shall be  governed  by the  internal  laws of the State of  California,  without
regard  to  its  conflicts  of  law  principles.  As  a  material  part  of  the
consideration  to Coast to enter into this  Agreement,  Borrower (a) agrees that
all actions and  proceedings  relating  directly or indirectly to this Agreement
shall, at Coast's option, be litigated in courts located within California,  and
that the exclusive venue therefor shall be Los Angeles  County;  (b) consents to
the  jurisdiction and venue of any such court and consents to service of process
in any such  action or  proceeding  by  personal  delivery  or any other  method
permitted by law; and (c) waives any and all rights  Borrower may have to object
to the jurisdiction of any such court, or to transfer or change the venue of any
such action or proceeding.

      11.16  Mutual  Waiver of Jury Trial.  BORROWER AND COAST EACH HEREBY WAIVE
THE RIGHT TO TRIAL BY JURY IN ANY ACTION OR PROCEEDING  BASED UPON,  ARISING OUT
OF, OR IN ANY WAY  RELATING TO, THIS  AGREEMENT  OR ANY OTHER  PRESENT OR FUTURE
INSTRUMENT  OR AGREEMENT  BETWEEN COAST AND  BORROWER,  OR 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, IN ALL
OF THE FOREGOING CASES, WHETHER SOUNDING IN CONTRACT OR TORT OR OTHERWISE.

BORROWER:

KENDALL SQUARE TELECONFERENCING, INC.

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

Title  Vice President - Finance


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


CONFERENCE SOURCE INTERNATIONAL

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

Title  Vice President - Finance


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

Title  President


<PAGE>
TELEPHONE BUSINESS MEETINGS, INC.

By     /s/John J. Dion
       ---------------
 
Title  Vice President - Finance


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

Title  Vice President



CALL POINTS, INC.

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

Title  Vice President - Finance


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

Title  President


AMERICAN CONFERENCING COMPANY, INC.

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

Title  Vice President - Finance


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

Title  President


COMMUNICATION DEVELOPMENT CORPORATION

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

Title  Vice President - Finance


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

Title  Vice President


<PAGE>

COAST:

COAST BUSINESS CREDIT(R),
a division of Southern Pacific Bank

By      /s/Robert D. Peters
        -------------------

Title:  Vice President

<PAGE>
Coast
                                   SCHEDULE TO
                           LOAN AND SECURITY AGREEMENT


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, Suite 300
                  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.
Address:          1500 Hunter Loop Road
                  Montgomery, Alabama 36108

Co-Borrower:      American Conferencing 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
<PAGE>
This Schedule forms an integral part of the Loan and Security  Agreement between
Coast  Business  Credit(R),  a  division  of  Southern  Pacific  Bank,  and  the
above-borrower of even date.

SECTION 2 - CREDIT FACILITIES

      Section 2.1 - Credit Limit:       Loans  in a  total  amount  at any  time
                                        outstanding  not to exceed the lesser of
                                        a  total  of  Fifteen   Million  Dollars
                                        ($15,000,000.00)   at   any   one   time
                                        outstanding (the Maximum Dollar Amount),
                                        or the sum of (a), (b) and (c) below:

                                        (a)   Receivable   Loans  up  to  eighty
                                        percent   (80%)   of   the   amount   of
                                        Borrower's   Eligible   Receivables  (as
                                        defined in Section 1 of the  Agreement).
                                        The advance rate on the Receivable Loans
                                        may be  increased,  in Coast's  sole and
                                        absolute discretion, to an amount not to
                                        exceed  eighty-five   percent  (85%)  of
                                        Borrower's   Eligible   Receivables   if
                                        Coast,   in   it   sole   and   absolute
                                        discretion,  determines that dilution of
                                        Receivables  has been and is, in Coast's
                                        opinion,  likely to  continue  at a rate
                                        that is five percent (5%) or less;  plus
 
                                        (b) Term  Loan  (the  "Term  Loan") in a
                                        principal  amount  of One  Million  Five
                                        Hundred Dollars ($1,500,000).

                                        The  principal of the Term Loan shall be
                                        repaid  in  equal  monthly  installments
                                        based  on  a   thirty-six   (36)   month
                                        amortization   period,   commencing   on
                                        October 31, 1998 and  continuing  on the
                                        last day of each month  thereafter.  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  Agreement  or
                                        (ii) the effective  date of  termination
                                        as  provided  in Section 9.2 of the Loan
                                        Agreement.

                                        (c)  Equipment  Acquisition  Loans  in a
                                        total  amount  not to exceed  the lesser
                                        of:

                                        (1) Eighty percent (80%) of the purchase
                                        price  of new and used  Equipment,  less
                                        installation  charges and taxes (subject
                                        to confirmation  by appraisers  selected
                                        by or otherwise acceptable to Coast that
<PAGE>
                                        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; or

                                        (2)      Four      Million       Dollars
                                        ($4,000,000.00).

                                        Each  advance  of  principal   hereunder
                                        shall  be   repaid   in  equal   monthly
                                        installments  based on a thirty-six (36)
                                        month amortization period, 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
                                        Agreement or (ii) the effective  date of
                                        termination  as  provided in Section 9.2
                                        of the Loan Agreement.

SECTION 3 - INTEREST AND FEES

      Section 3.1 -     Interest Rate:  A rate  equal to the Prime Rate plus 1.5
                                        % per annum,  calculated on the basis of
                                        a 360-day year for the actual  number of
                                        days   elapsed.    The   interest   rate
                                        applicable   to  all   Loans   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
                                        the prior  month,  but in no event shall
                                        the  rate  of  interest  charged  on any
                                        Loans in any  month be less  than  seven
                                        percent (7%) per annum.

      Section 3.1 -     Minimum Monthly
                        Interest:       Based  on  minimum   daily   outstanding
                                        principal loan balance of the greater of
                                        (a) Five Million  ($5,000,000.00) or (b)
                                        thirty-three percent (33%) of the Credit
                                        Limit in effect from time to time.
<PAGE>
      Section 3.2 -     Loan Fee:       One Hundred and Fifty  Thousand  Dollars
                                        ($150,000.00)   fully   earned   on  the
                                        Closing  Date.  The  Loan  Fee  shall be
                                        payable in equal quarterly  installments
                                        of Eighteen  Thousand  Seven Hundred and
                                        Fifty Dollars ($18,750) each, commencing
                                        on the Closing Date and  thereafter,  on
                                        the end of each calendar  quarter (i.e.,
                                        March 31,  June 30,  September  30,  and
                                        December 31). Any unpaid Loan Fee at the
                                        Maturity  Date shall be due and  payable
                                        in full.

      Section 3.2 -     Facility Fee:   $500.00 per month for each entity  being
                                        monitored.

      Section 9.1 -     Renewal Fee:    0.5% of the  Maximum  Dollar  Amount per
                                        year for each renewal  subsequent to the
                                        initial Maturity Date.

      Section 9.2 -     Early Termination
                        Fee:            An amount equal to three percent (3%) of
                                        the Maximum Dollar Amount (as defined in
                                        the Schedule),  if termination occurs on
                                        or before the first  anniversary  of the
                                        effective  date of this  Agreement;  and
                                        two percent  (2%) of the Maximum  Dollar
                                        Amount, if termination  occurs after the
                                        first   anniversary   and   before   the
                                        Maturity Date  (including any extensions
                                        of the Maturity Date pursuant to Section
                                        9.1 or otherwise).


SECTION 5 - CONDITIONS PRECEDENT

      Section 5.2 -     Minimum
                   Availability:        Borrower    and   VIALOG    shall   have
                                        unencumbered  cash and minimum borrowing
                                        availability  at  funding   totaling  an
                                        amount  of not less  than  Five  Million
                                        Dollars ($5,000,000).

      Section 5.12 -    Other Documents
                        and Agreements: At or prior to Closing,  Borrower  shall
                                        provide or Coast shall have received, in
                                        form and  content  acceptable  to Coast,
                                        such other and further  Loan  Documents,
                                        agreements  and  other  papers  and such
                                        other and further actions shall be taken
                                        as  specified  by Coast to carry out the
                                        intent and  purposes  of this  Agreement
                                        and to grant,  perfect  and  protect the
                                        rights   and   interests   of  Coast  as
                                        contemplated herein.
<PAGE>
SECTION 6 - REPRESENTATIONS, WARRANTIES AND COVENANTS


      Section 6.2 -     Prior Names of
                        Borrower:  

                                        Kendall Square Teleconferencing, Inc.:

                                             1.   Teleconversant,    Ltd.;   The
                                             Conference Center


                                        Conference Source International, Inc.:

                                             1. CSI

                                        Telephone Business Meetings, Inc.:

                                             1.     Access      Teleconferencing
                                             International

                                        Call Points, Inc.:

                                             1.    Call    Points    Acquisition
                                             Corporation


                                        American Conferencing Company, Inc.:

                                             1.


                                        Communication Development Corporation:

                                             1.   None


      Section 6.2 -     Prior Trade Names
                        of Borrower:


                                        Kendall Square Teleconferencing, Inc.:

                                             1.       Teleconversant, Ltd.

                                        Conference Source International, Inc.:

                                             1.   None.

                                        Telephone Business Meetings, Inc.:

                                             1.   Access Conference Call Service


                                        Call Points, Inc.:

                                             1.   Call Points

<PAGE>
                                        American Conferencing Company, Inc.:

                                             1.

                                        Communication Development Corporation:

                                             1.   None


      Section 6.2 -     Existing Trade Names
                        of Borrower:

                                        Kendall Square Teleconferencing, Inc.:

                                             1.   The Conference Center

                                        Conference Source International, Inc.:

                                             1.   CSI


                                        Telephone Business Meetings, Inc. :

                                             1.     Access      Teleconferencing
                                                    International;
                                             2.   Access Conference Call Service

                                               Call Points, Inc.:

                                             1.   None.

                                        American Conferencing Company, Inc.:

                                             1.

                                        Communication Development Corporation:

                                             1.   None


      Section 6.3 -     Other Locations and
                        Addresses:

                                        Kendall Square Teleconferencing, Inc.:

                                             1. None.

                                        Conference Source International, Inc.:

                                             1. None.

                                        Telephone Business Meetings, Inc. :

                                             1. None.

<PAGE>
                                        Call Points, Inc.:

                                             1.    3613    Eastern    Boulevard,
                                             Montgomery, Alabama 36116
                                             2.   202   East   Hardaway,   Union
                                             Springs, Alabama 36089

                                        American Conferencing Company, Inc.:

                                             1.

                                        Communication Development Corporation:

                                             1. None.

      Section 6.10 -    Material Adverse
                        Litigation:

                                        Kendall Square Teleconferencing, Inc.:

                                             1. None.

                                        Conference Source International, Inc.:

                                             1. None.

                                        Telephone Business Meetings, Inc. :

                                             1. None.

                                        Call Points, Inc.:

                                             1. None.

                                        American Conferencing Company, Inc.:

                                             1. None.

                                        Communication Development Corporation:

                                             1. None.


      Section 6.10 -    Future Claims and
                        Litigation:            Borrower  will  promptly   inform
                                               Coast in  writing  of any  claim,
                                               proceeding,     litigation     or
                                               investigation   in   the   future
                                               threatened  or  instituted  by or
                                               against  Borrower  involving  any
                                               single  claim of  Fifty  Thousand
                                               Dollars  ($50,000.00) or more, or
                                               involving  One  Hundred  Thousand
                                               Dollars  ($100,000.00) or more in
                                               the aggregate.
<PAGE>
                                               As    of    closing,     Borrower
                                               represents  that the only  future
                                               claim  is as  follows:  A  former
                                               employee  of  Conference   Source
                                               International,  Inc.  ("CSI") has
                                               claimed  that he may be  entitled
                                               to 5% of the  stock of CSI  based
                                               on an  unsigned  paper  outlining
                                               possible  employment terms. CSI's
                                               position   is   that   the   only
                                               agreements   with  such  employee
                                               were set forth in two  successive
                                               executed  employment  agreements,
                                               each  of  which  had  a  specific
                                               provision that such agreement was
                                               inclusive  as  to  the  terms  of
                                               employment.   CSI  believes  that
                                               such claim is without merit.

SECTION 8 - ADDITIONAL DUTIES OF BORROWER


       Section 8.1 - Other Provisions:         1. With the  exception of: (a) an
                                               existing   account   payable   of
                                               American   Conferencing  Company,
                                               Inc. to Compunetics;  and (b) any
                                               other accounts payable  hereafter
                                               approved in writing by Coast,  no
                                               accounts  payable  shall  be over
                                               one hundred and twenty (120) days
                                               past invoice date at funding.

                                               2. All applicable  taxes shall be
                                               current  at  funding  and  on  an
                                               going forward basis.

                                               3.  Coast  shall,  at all  times,
                                               have   a    perfected    security
                                               interest  in all  presently-owned
                                               and  after-acquired  tangible and
                                               intangible  assets and  interests
                                               of  Borrower,  wherever  located.
                                               Except   for   Permitted   Liens,
                                               Coast's security  interests shall
                                               be  senior  in  priority  to  all
                                               other    liens    and    security
                                               interests.

                                               4.   Borrower  may  not  purchase
                                               assets   outside   the   ordinary
                                               course of business  for  purchase
                                               price  of or in  excess  of Fifty
                                               Thousand   Dollars   ($50,000.00)
                                               without consent of Coast.
<PAGE>
                                               5.   Borrower  and  VIALOG  shall
                                               maintain   ongoing   Minimum  Net
                                               Worth  of  not  less  than  Fifty
                                               Million Dollars ($50,000,000.00).
                                               The  computation  of Minimum  Net
                                               Worth   shall   be   defined   as
                                               shareholders  equity plus the sum
                                               of (a) subordinated  debt and (b)
                                               the  total  outstanding   balance
                                               under  the  $75,000,000  12  3/4%
                                               Senior  Notes  issued by  VIALOG.
                                               Subordinated  debt shall  include
                                               debts  of   Borrower   which  are
                                               subordinated to Coast pursuant to
                                               written subordination  agreements
                                               acceptable to Coast.

                                               6. Coast shall  obtain  pro-forma
                                               consolidated  and   consolidating
                                               balance  sheet of  Borrower,  for
                                               VIALOG  and all  Borrowers  as of
                                               December 31, 1997  reflecting the
                                               acquisition  of all  Borrowers by
                                               VIALOG,  and  the  same  must  be
                                               satisfactory to Coast.

                                               7.  Coast  shall  perform  credit
                                               searches of Borrower and the same
                                               must be satisfactory to Coast.

                                               8.  A   Landlord's   Waiver   and
                                               similar  agreements  in form  and
                                               content  specified or approved by
                                               Coast  shall  be  obtained   with
                                               respect    to    any     facility
                                               designated  by  Coast  including,
                                               without      limitation,      the
                                               Borrower's    leased   facilities
                                               located at:

                                                   (a) 1 Kendall  Square,  Suite
                                                   328, Cambridge, Massachusetts
                                                   02139;

                                                   (b)  100  Hartsfield   Center
                                                   Parkway,   Atlanta,   Georgia
                                                   30354;

                                                   (c)   1861   Wiehle   Avenue,
                                                   Reston, Virginia 20190;

                                                   (d) 1500  Hunter  Loop  Road,
                                                   Montgomery, Alabama 36108;

                                                   (e) 3613  Eastern  Boulevard,
                                                   Montgomery, Alabama 36116;

<PAGE>
                                                   (f) 202 East Hardaway,  Union
                                                   Springs, Alabama 36089;

                                                   (g)  690  Kinderkamack  Road,
                                                   Oradell,  New  Jersey  07649;
                                                   and

                                                   (h)  30  Main  Street,  Suite
                                                   400,   Danbury,   Connecticut
                                                   06810.

                                               9. Borrower's  Receivables  shall
                                               be collected by a lockbox account
                                               and   directed   to   a   blocked
                                               concentration  account or similar
                                               arrangement  acceptable to Coast,
                                               which     accounts    shall    be
                                               controlled    by   Coast.    Each
                                               Borrower  represents  that VIALOG
                                               will  be  managing  the  advances
                                               made by Coast  hereunder  for the
                                               benefit of Borrower.  In order to
                                               avoid  conflicting   instructions
                                               and  requests,   Borrower  hereby
                                               designates VIALOG as the sole and
                                               exclusive    representative    of
                                               Borrower  to  make  requests  for
                                               advances  from Coast,  to receive
                                               such  advances for  Borrower,  to
                                               disburse  such  advances  and  to
                                               otherwise   participate   in  the
                                               administration   of  the   credit
                                               facilities as VIALOG and Borrower
                                               deem appropriate. Coast shall not
                                               be obligated to honor any advance
                                               request or other instruction from
                                               Borrower   without   the  express
                                               written   consent   from  VIALOG.
                                               Coast shall have no liability and
                                               shall have no responsibility  for
                                               any  claims,  loss or damage that
                                               any Borrower may have arising out
                                               of or  relating  to the  acts and
                                               omissions   of   VIALOG   in  the
                                               administration   of  the   credit
                                               facilities  for and on  behalf of
                                               Borrower.  Borrower,  for  itself
                                               and on  behalf  of its  officers,
                                               directors,             employees,
                                               shareholders, representatives and
                                               agents,    hereby   agrees,    at
                                               Borrower's sole cost and expense,
                                               to  defend   (with   counsel   of
                                               Coast's  choice)  and hold  Coast
                                               harmless  from  and  against  all
                                               claims of every  kind and  nature
                                               arising  out  of or  relating  to
                                               VIALOG's  administration  of  the
                                               credit   facilities  for  and  on
                                               behalf of Borrower.
<PAGE>
                                               10. At all times  during the term
                                               of  this  loan,   Borrower  shall
                                               maintain a Debt Service  Coverage
                                               ratio of not less than 1.2:1 on a
                                               monthly   basis.   "Debt  Service
                                               Coverage"  shall  be  defined  as
                                               monthly EBITDA of the prior month
                                               and the  cash  balance  as of the
                                               end of the prior month, less cash
                                               expenditures  for capital  assets
                                               and  taxes  owed  in the  current
                                               month   divided  by  all  monthly
                                               obligations  to be  paid  in  the
                                               current  month for  principal and
                                               interest   payments    (excluding
                                               trade accounts  payable and other
                                               accruals incurred in the ordinary
                                               course    of    the    Borrower's
                                               business)   and   capital   lease
                                               payments,  based  on the loan and
                                               capital lease  balances as of the
                                               beginning of the current month.

                                               11.  Borrower shall provide Coast
                                               with  internally  prepared annual
                                               financial   statement,    balance
                                               sheets,  income  statements,  and
                                               cash  flows  for the  year  ended
                                               December    31,    1997,    which
                                               statements and information  shall
                                               be satisfactory to Coast.

      Section 8.2 -     Insurance:             Subject  to the  limitations  set
                                               forth  in  Section   8.2  of  the
                                               Agreement, Coast shall release to
                                               Borrower  insurance proceeds with
                                               respect  to  Equipment   totaling
                                               less  than One  Hundred  Thousand
                                               Dollars ($100,000.00).

      Section 8.3 -     Reporting:             Borrower shall provide Coast with
                                               the following:

                                                1.   Monthly Receivable agings,
                                                     aged by invoice date,
                                                     within ten (10) business
                                                     days after the end of each
                                                     month.

                                                2.   Monthly accounts payable
                                                     agings, aged by invoice
                                                     date, and outstanding or
                                                     held check registers,
                                                     within ten (10) days after
                                                     the end of each month.
<PAGE>
                                                3.   Monthly internally prepared
                                                     financial statements, as
                                                     soon as available, and in
                                                     any event within thirty
                                                     (30) days after the end of
                                                     each month.

                                                4.   Quarterly internally
                                                     prepared financial
                                                     statements, as soon as
                                                     available, and in any event
                                                     within forty-five (45) days
                                                     after the end of each
                                                     fiscal quarter of Borrower.

                                                5.   Quarterly customer lists,
                                                     including customer name,
                                                     address, and phone number.

                                                6.   Annual financial
                                                     statements, as soon as
                                                     available, and in any event
                                                     within ninety (90) days
                                                     following the end of
                                                     Borrower's fiscal year,
                                                     containing the unqualified
                                                     opinion of, and certified
                                                     by, an independent
                                                     certified public accountant
                                                     acceptable to Coast.

                                                7.   Copies of all filings made
                                                     by Borrower or VIALOG with
                                                     the Securities Exchange
                                                     Commission as and when
                                                     filed.

                                                8.   Monthly representation from
                                                     an officer of VIALOG
                                                     representing that (a)
                                                     VIALOG and the Borrowers
                                                     are in compliance with the
                                                     Senior Notes and (b)
                                                     neither VIALOG or the
                                                     Borrowers have violated any
                                                     obligations or restrictions
                                                     hereunder respecting the
                                                     Senior Notes.

SECTION 9 - TERM

      Section 9.1 -     Maturity Date:       Two  (2)  years  from  the  Closing
                                             Date,  subject to automatic renewal
                                             as  provided  in Section 9.1 of the
                                             Agreement, and early termination as
                                             provided  in  Section  9.2  of  the
                                             Agreement.


<PAGE>
BORROWER:

KENDALL SQUARE TELECONFERENCING, INC.


By      /s/John J. Dion
        ----------------        
        
Title   Vice President - Finance


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

Title   President



CONFERENCE SOURCE INTERNATIONAL


By      /s/John J. Dion
        ---------------
        
Title   Vice President - Finance



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

Title   Vice President



TELEPHONE BUSINESS MEETINGS, INC.


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

Title   Vice President - Finance



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

Title   Vice President


[SIGNATURES CONTINUED ON THE NEXT PAGE]
<PAGE>
CALL POINTS, INC.


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

Title   Vice President - Finance


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

Title   President


      AMERICAN CONFERENCING COMPANY, INC.


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

Title   Vice President - Finance


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

Title   President



COMMUNICATION DEVELOPMENT CORPORATION


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

Title   Vice President - Finance


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

Title   Vice President


COAST:

COAST BUSINESS CREDIT(R),
a division of Southern Pacific Bank


By      /s/Robert D. Peters
        -------------------

Title:  Vice President

 
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
<PAGE>
         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.
<PAGE>
         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.
<PAGE>
         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]
<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


                                  EXHIBIT 10.3

Coast
                                Secured Term Note
                                   (Term Loan)
                        (Co-Borrowers, Joint and Several)

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, Suite 300
                        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 Conferencing 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 14, 1998


$1,500,000.00
<PAGE>
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
and  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 any such other address as
the holder of this Secured Term Note (this "Note")  shall direct,  the principal
sum ("Principal") of One Million Five Hundred Thousand Dollars  ($1,500,000.00),
plus interest and other charges as hereinafter provided.

         Principal  hereunder  shall be repaid in equal monthly  installments of
Forty  One  Thousand  Six  Hundred  Sixty Six  Dollars  and  Sixty  Seven  Cents
($41,666.67),  with  the  first  payment  commencing  on  October  31,  1998 and
continuing on the last day of each month thereafter.

         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  between Borrower
and  Coast  dated as of the date  hereof  (the  "Loan  Agreement"),  or (ii) the
effective  date of  termination as provided in Section 9.2 of the Loan Agreement
(the Loan  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 or such different interest rate as provided in
the Loan Documents.  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 Borrower fails to pay any payment of Principal or interest
on this Note, or if any 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 and other charges 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.
<PAGE>
         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 and costs) 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
Agreements,  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 Agreement, 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.
<PAGE>
         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


             Co-Borrower:

CALL POINTS, INC.


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

Title   Vice President - Finance


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

Title   President

[SIGNATURES CONTINUED ON NEXT PAGE]
<PAGE>
             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


                                  EXHIBIT 10.4

Coast

                               Security Agreement


                           THIS SECURITY AGREEMENT ("Agreement") is entered into
on the day of  September,  1998,  by and between  COAST  BUSINESS  CREDIT(R),  a
division of Southern  Pacific  Bank, a California  corporation  ("Coast"),  with
offices at 12121 Wilshire Boulevard, Suite 1111, Los Angeles,  California 90025,
and VIALOG Corporation, a Massachusetts corporation ("VIALOG"),  with offices at
35 New England Business Center,  Suite 160,  Andover,  Massachusetts  01810. All
capitalized  terms not otherwise  defined herein shall have the meaning assigned
to them in the Loan and  Security  Agreement  dated as of the date  hereof  (the
"Loan  Agreement")  between  Coast  and the  following  corporations  which  are
wholly-owned  subsidiaries of VIALOG: Kendall Square  Teleconferencing,  Inc., a
Massachusetts  corporation;  Conference  Source  International,  Inc., a Georgia
corporation;  Telephone Business Meetings,  Inc., a Delaware  corporation;  Call
Points, Inc., a Delaware corporation;  American  Conferencing  Company,  Inc., a
Delaware corporation;  and Communication Development Corporation,  a Connecticut
corporation ("Borrower" or "Borrowers").

                  1.       THE OBLIGATIONS

                  Coast is  concurrently  entering  into the Loan  Agreement and
related documents (collectively,  the "Loan Documents") for the financing of the
Borrowers.   VIALOG  is  providing  a  Continuing  Guaranty,   guaranteeing  the
obligations of Borrowers to Coast.

                  2.  SECURITY INTEREST.

                  To secure the payment and  performance  of all  obligations of
VIALOG under the Continuing  Guaranty when due,  VIALOG hereby grants to Coast a
security  interest in all of VIALOG's  interest  in the  following,  whether now
owned or hereafter acquired,  and wherever located: All Receivables,  Inventory,
Equipment,  Investment  Property  and  General  Intangibles  (as these terms are
defined  in the  Loan  Agreement),  and  all  proceeds  of any of the  foregoing
(including proceeds of any insurance policies,  proceeds of proceeds, and claims
against third parties), all products of any of the foregoing,  and all books and
records  related to any of the  foregoing  all to the extent that the same arise
from,  relate to or are used by Vialog (all of the foregoing,  together with all
other  property  in which  Coast may now or in the  future be  granted a lien or
security interest,  is referred to herein,  collectively,  as the "Collateral").
Notwithstanding  the  generality  of the  foregoing,  the  Collateral  shall not
include the stock of Borrower.

                  3.  REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE BORROWER.

                  In order to induce Coast to enter into this  Agreement  and to
make Loans,  VIALOG  represents  and  warrants  to Coast as follows,  and VIALOG
covenants that the following  representations will continue to be true, and that
VIALOG will at all times comply with all of the following covenants:

                  3.1 Title to Collateral;  Permitted Liens.  VIALOG is now, and
will at all times in the future be, the sole owner of all the Collateral, except
for items of Equipment  (as defined in the Loan  Agreement)  which are leased by
VIALOG.  The  Collateral  now is and will  remain  free and clear of any and all
<PAGE>
liens, charges, security interests,  encumbrances and adverse claims, except for
Permitted  Liens (as  defined in the Loan  Agreement).  Coast now has,  and will
continue to have, a first-priority  perfected and enforceable  security interest
in all of the Collateral,  subject only to the Permitted  Liens, and VIALOG will
at all times defend Coast and the Collateral against all claims of others (other
than  holders of  Permitted  Liens).  None of the  Collateral  now is or will be
affixed to any real property in such a manner, or with such intent, as to become
a fixture.  VIALOG is not and will not become a lessee  under any real  property
lease  pursuant  to  which  the  lessor  may  obtain  any  rights  in any of the
Collateral and no such lease now prohibits, restrains, impairs or will prohibit,
restrain  or impair  VIALOG's  right to remove  any  Collateral  from the leased
premises.  Whenever any  Collateral  is located upon premises in which any third
party has an interest (whether as owner, mortgagee,  beneficiary under a deed of
trust, lien or otherwise),  VIALOG shall,  whenever  requested by Coast, use its
best efforts to cause such third party to execute and deliver to Coast,  in form
acceptable to Coast, such waivers and subordinations as Coast shall specify,  so
as to ensure that Coast's rights in the Collateral are, and will continue to be,
superior to the rights of any such third party  (other than holders of Permitted
Liens).  VIALOG will keep in full force and effect, and will comply with all the
terms of, any lease of real property  where any of the  Collateral now or in the
future may be located.

                  3.2  Maintenance  of  Collateral.  VIALOG  will  maintain  the
Collateral in good working condition, and VIALOG will not use the Collateral for
any unlawful  purpose.  VIALOG will  immediately  advise Coast in writing of any
material loss or damage to the Collateral.

                  3.3  Insurance.  VIALOG shall,  at all times insure all of the
tangible personal property  Collateral and carry such other business  insurance,
with insurers reasonably  acceptable to Coast, in such form and amounts as Coast
may reasonably  require,  and VIALOG shall provide evidence of such insurance to
Coast,  so that Coast is satisfied that such insurance is, at all times, in full
force and effect. All liability insurance policies of VIALOG shall name Coast as
an additional insured,  and all property casualty and related insurance policies
of VIALOG  shall name Coast as a loss payee  thereon  and VIALOG  shall  cause a
lenders loss payee  endorsement  to be added in form  reasonably  acceptable  to
Coast.  All such  insurance  shall  provide  that  the same may not be  canceled
without  thirty (30) days prior  written  notice to Coast.  Upon  receipt of the
proceeds of any such insurance,  Coast shall apply such proceeds in reduction of
the  obligations of the Borrowers to Coast, as Coast shall determine in its sole
discretion,  except  that,  provided no Default or Event of Default has occurred
and is continuing  under the Loan Documents,  Coast shall release to VIALOG such
insurance  proceeds which shall be utilized by VIALOG for the replacement of the
Equipment  with respect to which the  insurance  proceeds  were paid.  Coast may
require reasonable  assurance that the insurance proceeds so released will be so
used. If VIALOG fails to provide or pay for any insurance, Coast may, but is not
obligated to, obtain the same at VIALOG's expense. VIALOG shall promptly deliver
to Coast copies of all reports made to insurance companies.

                  3.4 Access to  Collateral,  Books and Records.  At  reasonable
times, and with reasonable notice under the circumstances, Coast, or its agents,
shall have the right to inspect,  audit and copy VIALOG's  books and records and
the  Collateral.  Coast shall take  reasonable  steps to keep  confidential  all
confidential  information,  but Coast shall have the right to disclose  any such
information to its auditors, regulatory agencies, and attorneys, and pursuant to
any subpoena or other legal process.
<PAGE>
                  3.5 Further  Assurances.  VIALOG  agrees,  at its expense,  on
request by Coast,  to execute  all  documents  and take all actions as Coast may
deem  reasonably  necessary or useful in order to perfect and  maintain  Coast's
perfected security interest in the Collateral,  and in order to fully consummate
the transactions contemplated by this Agreement.

                  3.6  Dividends  By Vialog or  Subsidiaries.  VIALOG shall not,
without the prior  written  consent of Coast,  pay or declare any  dividends  or
distributions  on the  ownership  interests  in Vialog  except for  dividends or
distributions payable solely in the form of stock ownership interests in Vialog.
Borrowers  shall not,  without the prior written consent of Coast pay or declare
any dividends or distributions on the ownership interests in any Borrower except
for (i)  dividends or  distributions  payable  solely in stock form of ownership
interests  in Borrower  and (ii)  dividends to Vialog if, when and to the extent
required by Vialog in order to make  regularly-scheduled  payments of  principal
and  interest  on the  $75,000,000.00,  12 3/4% Senior  Notes  issued by Vialog,
provided such dividends or payments on the 12 3/4% Senior Notes would not result
in a Default or Event of Default by Borrower  or Vialog  with  respect to any of
their  respective  obligations to Coast.  Borrower may make loans,  advances and
transfers to VIALOG provided (i) the Borrower is and will continue to be able to
generally pay its  obligations  as and when due; and (ii) VIALOG owns all of the
outstanding  ownership interests in Borrower as of the time of the loan, advance
or transfer.

                  3.7 Ordinary Course Transactions. VIALOG will not, without the
prior written  consent of Coast,  (a) merge or  consolidate  with another entity
other than one that is a  wholly-owned  subsidiary  and VIALOG is the  surviving
entity, (b) enter into any transaction  outside the ordinary course of business,
(c) incur any debts, outside the ordinary course of business, which would have a
Material  Adverse Effect,  (d) guarantee or otherwise become liable with respect
to the  obligations of another party or entity,  (e) make any change in VIALOG's
capital structure which would have a Material Adverse Effect, (f) redeem,  prior
to maturity,  any of the  $75,000,000.00,  12 3/4% Senior Notes issued by Vialog
unless  funded by the  proceeds of an equity  offering or the proceeds of a debt
offering  where the debt  offering  is  subordinated  in all  respects  to Coast
including,  but not limited to Coast`s  claims,  Coast's rights to payment,  and
Coast's Collateral, (g) dissolve or elect to dissolve, or (h) acquire any assets
or  interests  except  (i)  in  the  ordinary  course  of  business,  (ii)  in a
transaction  or a  series  of  transactions  not  involving  the  payment  of an
aggregate amount in excess of Five Hundred Thousand Dollars ($500,000), or (iii)
the acquisition of A Business  Conference-Call,  Inc.  ("ABCC") provided (A) the
acquisition is funded entirely by the proceeds of an equity offering and (B) the
assets of ABCC are pledged as  collateral  security for the  obligations  of the
Borrowers and Vialog to Coast.  With respect to any other proposed  acquisitions
the same shall require Coast's approval which approval shall not be unreasonably
withheld.

                  4.  EVENTS OF DEFAULT AND REMEDIES.

                  The  occurrence of any Event of Default  under the  Continuing
Guaranty and other related documents and agreements shall constitute an Event of
Default hereunder.  If there is an Event of Default, Coast shall have the option
of enforcing its various default  remedies  provided in the Continuing  Guaranty
and other related documents and agreements with respect to the Collateral, which
remedies are incorporated herein by this reference as though set forth herein in
full. Without limiting the generality of the foregoing,  all rights and remedies
of Coast under the Loan Agreement with Borrowers are incorporated herein by this
reference  with respect to Coast's  rights and remedies  against  VIALOG and the
Collateral  pledged by VIALOG to Coast should there be an Event of Default under
the Continuing  Guaranty,  this Agreement and any other documents and agreements
by VIALOG in favor of Coast.
<PAGE>
                  5.  NOTICES.

                  All  notices  to be given  under  this  Agreement  shall be in
writing and shall be given either  personally or by reputable  private  delivery
service or by  regular  first-class  mail,  or  certified  mail  return  receipt
requested,  addressed  to Coast or VIALOG at the  addresses  shown  above in the
heading to this Agreement,  or at any other address designated in writing by one
party to the other party.  Notices to Coast shall be directed to the  Commercial
Finance  Division,  to the  attention  of the  Division  Manager or the Division
Credit Manager.  All notices shall be deemed to have been given upon delivery in
the  case of  notices  personally  delivered,  or at the  expiration  of one (1)
Business Day following  delivery to the private delivery  service,  or three (3)
Business  Days  following the deposit  thereof in the United  States mail,  with
postage prepaid.


                  6.       MISCELLANEOUS

                  6.1  Integration.   This  Agreement  and  such  other  written
agreements,  documents and instruments as may be executed in connection herewith
are the  final,  entire and  complete  agreements  between  VIALOG and Coast and
supersede all prior and  contemporaneous  negotiations and oral  representations
and agreements,  all of which are merged and integrated in this Agreement. There
are no oral  understandings,  representations  or agreements between the parties
which are not set forth in this Agreement or in other written  agreements signed
by the parties in connection herewith.

                  6.2  Waivers.  The  failure  of  Coast at any time or times to
require  VIALOG to strictly  comply with any of the provisions of this Agreement
or any other  present or future  agreement  between  VIALOG and Coast  shall not
waive or  diminish  any  right  of Coast  later to  demand  and  receive  strict
compliance therewith unless agreed to otherwise expressly in writing. Any waiver
of any default  shall not waive or affect any other  default,  whether  prior or
subsequent, and whether or not similar. None of the provisions of this Agreement
or any other  agreement now or in the future executed by VIALOG and delivered to
Coast  shall be deemed to have been waived by any act or  knowledge  of Coast or
its agents or  employees,  but only by a specific  written  waiver  signed by an
authorized  officer of Coast and  delivered to VIALOG or otherwise  agreed to in
writing by Coast. VIALOG waives, to the maximum extent permitted by law, demand,
protest, notice of protest and notice of default or dishonor,  notice of payment
and nonpayment,  release,  compromise,  settlement,  extension or renewal of any
commercial paper, instrument,  account, General Intangible, document or guaranty
at any time held by Coast on which  VIALOG is or may in any way be  liable,  and
notice  of any  action  taken  by  Coast,  unless  expressly  required  by  this
Agreement.

                  6.3 Amendment.  The terms and provisions of this Agreement may
not be waived  or  amended,  except in  writing  executed  by VIALOG  and a duly
authorized officer of Coast.

                  6.4 Attorneys Fees, Costs and Charges.  VIALOG shall reimburse
Coast for all reasonable  attorneys' fees and all reasonable filing,  recording,
search, title insurance,  appraisal,  audit, and other reasonable costs incurred
by Coast,  pursuant to, or in  connection  with,  or relating to this  Agreement
(whether  or not a  lawsuit  is  filed),  including,  but not  limited  to,  any
reasonable  attorneys' fees and costs Coast incurs in order to do the following:
prepare  and  negotiate  this  Agreement  and  the  documents  relating  to this
<PAGE>
Agreement;  obtain legal advice in connection with this Agreement;  enforce,  or
seek to enforce, any of its rights; prosecute actions against, or defend actions
of VIALOG; commence, intervene in, or defend any action or proceeding;  initiate
any  complaint  to be  relieved of the  automatic  stay in  bankruptcy;  file or
prosecute any probate  claim,  bankruptcy  claim,  third-party  claim,  or other
claim; examine, audit, copy, and inspect any of the Collateral or VIALOG's books
and records (up to twice a year); protect,  obtain possession of, lease, dispose
of, or otherwise  enforce  Coast's  security  interest in, the  Collateral;  and
otherwise  represent Coast in any litigation relating to VIALOG. If either Coast
or VIALOG  files any lawsuit  against the other  predicated  on a breach of this
Agreement,  the prevailing  party in such action to the maximum extent permitted
by law, shall be entitled to recover its reasonable  costs and attorneys'  fees,
including,  but not limited to, reasonable attorneys' fees and costs incurred in
the enforcement  of,  execution upon or defense of any order,  decree,  award or
judgment. VIALOG shall also pay Coast's standard charges for returned checks and
for wire transfers,  in effect from time to time. All attorneys' fees, costs and
charges to which Coast may be entitled pursuant to this Paragraph may be charged
by Coast to Borrowers'  loan account and shall  thereafter  bear interest at the
same rate as the Receivable Loans (as defined in the Loan Agreement).

                  6.5 Benefit of Agreement.  The  provisions  of this  Agreement
shall be binding  upon and inure to the  benefit of the  respective  successors,
assigns, heirs, beneficiaries and representatives of VIALOG and Coast, provided,
however,  that  VIALOG may not assign or transfer  any of its rights  under this
Agreement  without  the  prior  written  consent  of Coast,  and any  prohibited
assignment  shall be void. No consent by Coast to any  assignment  shall release
Borrowers from their liability for the obligations under the Loan Documents.

                  6.6 Governing Law; Jurisdiction; Venue. This Agreement and all
acts and  transactions  hereunder  and all rights and  obligations  of Coast and
VIALOG shall be governed by the laws of the State of  California.  As a material
part of the  consideration  to Coast to enter  into this  Agreement,  VIALOG (i)
agrees that all actions and proceedings  relating directly or indirectly to this
Agreement  shall,  at Coast's  option,  be  litigated in courts  located  within
California,  and that the exclusive  venue therefor shall be Los Angeles County;
(ii)  consents to the  jurisdiction  and venue of any such court and consents to
service of process in any such action or proceeding by personal  delivery or any
other method  permitted  by law; and (iii) waives any and all rights  VIALOG may
have to object to the  jurisdiction  of any such court, or to transfer or change
the venue of any such action or proceeding.

                  6.7 Mutual Waiver of Jury Trial.  VIALOG AND COAST EACH HEREBY
WAIVE THE RIGHT TO TRIAL BY JURY IN ANY ACTION OR PROCEEDING BASED UPON, ARISING
OUT OF, OR IN ANY WAY RELATING TO, THIS AGREEMENT OR ANY OTHER PRESENT OR FUTURE
INSTRUMENT  OR AGREEMENT  BETWEEN COAST AND VIALOG  UNLESS  OTHERWISE  EXPRESSLY
AGREED TO IN WRITING,  OR ANY  CONDUCT,  ACTS OR OMISSIONS OF COAST OR VIALOG OR
ANY OF THEIR  DIRECTORS,  OFFICERS,  EMPLOYEES,  AGENTS,  ATTORNEYS OR ANY OTHER
PERSONS AFFILIATED WITH COAST OR VIALOG, IN ALL OF THE FOREGOING CASES,  WHETHER
SOUNDING IN CONTRACT OR TORT OR OTHERWISE.



VIALOG CORPORATION, a            COAST BUSINESS CREDIT(R), a division of 
Massachusetts corporation        Southern Pacific Bank, a California corporation


By  /s/John J. Dion              By   /s/Robert D. Peters
    ---------------                   -------------------

Its Vice President - Finance     Its  Vice President


Coast
                               Continuing Guaranty

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 Conferencing 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

Guarantor:        VIALOG Corporation
                  35 New England Business Center, Suite 160
                  Andover, Massachusetts 01810

Date:             September 30, 1998

<PAGE>
         This  Continuing  Guaranty  is executed  by the  above-named  guarantor
("Guarantor"),  as of the above date, in favor of COAST  BUSINESS  CREDIT(R),  a
division of Southern  Pacific Bank  ("Coast"),  a California  corporation,  with
offices at 12121 Wilshire Boulevard, Suite 1111, Los Angeles,  California 90025,
with respect to the Indebtedness of the  above-referenced  Co-Borrowers  jointly
and severally  (except where  expressly  stated  otherwise or unless the context
requires  a  different  meaning,  reference  to  "Borrower"  in this  Continuing
Guaranty,  and all documents and agreements related thereto,  shall mean each of
the above-referenced Co-Borrowers, jointly and severally). All capitalized terms
not otherwise defined herein shall have the meaning assigned to them in the Loan
and Security  Agreement  dated as of the date hereof between  Borrower and Coast
(the "Loan Agreement").

         1. Continuing Guaranty. Guarantor hereby unconditionally guarantees and
promises  to pay on demand to Coast,  which  demand  shall be made by Coast only
after the  occurrence  of an Event of Default under the Loan  Agreement,  at the
address indicated above, or at such other address as Coast may direct, in lawful
money of the  United  States,  and to  perform  for the  benefit  of Coast,  all
Indebtedness  of Borrower  now or hereafter  owing to or held by Coast.  As used
herein,  the term  "Indebtedness"  is used in its most  comprehensive  sense and
shall  mean and  include  without  limitation:  (a) any and all  debts,  duties,
obligations, liabilities, representations, warranties and guaranties of Borrower
or any one or more of them,  heretofore,  now, or hereafter made,  incurred,  or
created,  whether  directly  to Coast or  acquired  by  Coast by  assignment  or
otherwise,  or held by Coast on  behalf  of  others,  however  arising,  whether
voluntary or involuntary, due or not due, absolute or contingent,  liquidated or
unliquidated,  certain or  uncertain,  determined or  undetermined,  monetary or
nonmonetary, written or oral, and whether Borrower may be liable individually or
jointly  with  others,  and  regardless  of whether  recovery  thereon may be or
hereafter   become  barred  by  any  statute  of   limitations,   discharged  or
uncollectible in any bankruptcy,  insolvency or other  proceeding,  or otherwise
unenforceable;  and  (b) any and all  amendments,  modifications,  renewals  and
extensions  of  any  or  all of  the  foregoing,  including  without  limitation
amendments,  modifications,  renewals and extensions  which are evidenced by any
new or  additional  instrument,  document  or  agreement;  and  (c)  any and all
reasonable  attorneys'  fees,  court costs,  and collection  charges incurred in
endeavoring  to  collect  or  enforce  any of the  foregoing  against  Borrower,
Guarantor,  or any other person liable thereon  (whether or not suit be brought)
and any other  expenses of, for or  incidental to  collection  thereof.  As used
herein, the term "Borrower" shall include any successor to substantially all the
business and assets of Borrower, and shall also include Borrower in its capacity
as a debtor or debtor in possession  under the federal  Bankruptcy Code, and any
trustee,  custodian  or  receiver  for  Borrower  or any of its  assets,  should
Borrower   hereafter   become  the  subject  of  any  bankruptcy  or  insolvency
proceeding,  voluntary or  involuntary;  and all  indebtedness,  liabilities and
obligations  incurred by any such person  shall be included in the  Indebtedness
guaranteed hereby.  This Guaranty is given in consideration for credit and other
financial  accommodations  which  may,  from time to time,  be given by Coast to
Borrower in Coast's sole discretion,  but Guarantor acknowledges and agrees that
acceptance  by Coast of this Guaranty  shall not  constitute a commitment of any
kind by Coast to extend such credit or other financial accommodation to Borrower
or to permit Borrower to incur  Indebtedness  to Coast.  All sums due under this
Guaranty  shall  bear  interest  from the date due  until  the date  paid at the
highest rate charged with respect to any of the Indebtedness.
<PAGE>
         2. Waivers.  Guarantor,  to the maximum extent permitted by law, hereby
waives:  (a) presentment for payment,  notice of dishonor,  protest,  and notice
thereof  as to any  instrument,  and all  other  notices  and  demands  to which
Guarantor might be entitled,  including without  limitation notice of all of the
following: the acceptance hereof; the creation, existence, or acquisition of any
Indebtedness;  the  amount of the  Indebtedness  from time to time  outstanding;
disposition  of any property  which  secures any or all of the  Indebtedness  or
which  secures  the  obligations  of any  other  guarantor  of any or all of the
Indebtedness;  any adverse change in Borrower's  financial  position;  any other
fact which might  increase  Guarantor's  risk; any default,  partial  payment or
non-payment of all or any part of the Indebtedness;  the occurrence of any other
Event  of  Default  (as  hereinafter  defined);   any  and  all  agreements  and
arrangements  between  Coast and  Borrower and any  changes,  modifications,  or
extensions thereof, and any revocation,  modification or release of any guaranty
of any or all of the Indebtedness by any person  (including  without  limitation
any other  person  signing  this  Guaranty);  (b) any right to require  Coast to
institute suit against, or to exhaust its rights and remedies against,  Borrower
or any other  person,  or to  proceed  against  any  property  of any kind which
secures all or any part of the Indebtedness,  or to exercise any right of offset
or other right with respect to any reserves, credits or deposit accounts held by
or  maintained  with  Coast or any  indebtedness  of Coast  to  Borrower,  or to
exercise  any other right or power,  or pursue any other  remedy Coast may have;
(c) any defense arising by reason of any disability or other defense of Borrower
or any other guarantor or any endorser,  co-maker or other person,  or by reason
of the cessation  from any cause  whatsoever of any liability of Borrower or any
other guarantor or any endorser,  co-maker or other person,  with respect to all
or any part of the Indebtedness, or by reason of any act or omission of Coast or
others  which  directly or  indirectly  results in the  discharge  or release of
Borrower or any other  guarantor or any other person or any  Indebtedness or any
security  therefor,  whether by operation of law or  otherwise;  (d) any defense
arising by reason of any failure of Coast to obtain,  perfect,  maintain or keep
in force any security  interest in, or lien or encumbrance upon, any property of
Borrower or any other person; (e) any defense based upon any failure of Coast to
give Guarantor notice of any sale or other  disposition of any property securing
any or all of the  Indebtedness,  or any  defects in any such notice that may be
given, or any failure of Coast to comply with any provision of applicable law in
enforcing any security interest in or lien upon any property securing any or all
of the  Indebtedness  including,  but not  limited  to, any  failure by Coast to
dispose  of  any  property  securing  any  or  all  of  the  Indebtedness  in  a
commercially reasonable manner; (f) any defense based upon or arising out of any
bankruptcy,  insolvency,  reorganization,  arrangement,  readjustment  of  debt,
liquidation or dissolution  proceeding  commenced by or against  Borrower or any
other  guarantor or any endorser,  co-maker or other person,  including  without
limitation any discharge of, or bar against collecting,  any of the Indebtedness
(including without  limitation any interest  thereon),  in or as a result of any
such proceeding;  and (g) the benefit of any and all statutes of limitation with
respect to any action  based upon,  arising out of or related to this  Guaranty.
Until all of the Indebtedness has been paid, performed,  and discharged in full,
nothing shall discharge or satisfy the liability of Guarantor  hereunder  except
the full  performance  and payment of all of the  Indebtedness.  If any claim is
ever made upon Coast for repayment or recovery of any amount or amounts received
by Coast in payment of or on account of any of the Indebtedness,  because of any
claim that any such payment  constituted a  preferential  transfer or fraudulent
conveyance, or for any other reason whatsoever,  and Coast repays all or part of
said  amount  by  reason  of any  judgment,  decree  or  order  of any  court or
administrative body having jurisdiction over Coast or any of its property, or by
reason of any  settlement or compromise of any such claim effected by Coast with
any such claimant  (including without limitation the Borrower),  then and in any
such event, Guarantor agrees that any such judgment,  decree, order,  settlement
<PAGE>
and compromise shall be binding upon Guarantor,  notwithstanding  any revocation
or release of this Guaranty or the  cancellation of any note or other instrument
evidencing any of the  Indebtedness,  or any release of any of the Indebtedness,
and the  Guarantor  shall be and remain  liable to Coast under this Guaranty for
the  amount so repaid or  recovered,  to the same  extent as if such  amount had
never  originally  been received by Coast,  and the  provisions of this sentence
shall survive, and continue in effect, notwithstanding any revocation or release
of this Guaranty.  Until all of the  Indebtedness  has been irrevocably paid and
performed in full,  Guarantor  hereby expressly and  unconditionally  waives all
rights  of  subrogation,  reimbursement  and  indemnity  of every  kind  against
Borrower,  and all rights of recourse to any assets or property of Borrower, and
all rights to any collateral or security held for the payment and performance of
any  Indebtedness,  including  (but not limited to) any of the foregoing  rights
which  Guarantor may have under any present or future document or agreement with
any  Borrower or other  person,  and  including  (but not limited to) any of the
foregoing  rights  which  Guarantor  may have under any  equitable  doctrine  of
subrogation,  implied contract, or unjust enrichment,  or any other equitable or
legal doctrine.  Neither Coast, nor any of its directors,  officers,  employees,
agents,  attorneys or any other person  affiliated  with or  representing  Coast
shall  be  liable  for any  claims,  demands,  losses  or  damages,  of any kind
whatsoever,  made, claimed, incurred or suffered by Guarantor or any other party
through the ordinary  negligence of Coast,  or any of its  directors,  officers,
employees, agents, attorneys or any other person affiliated with or representing
Coast.

         3.  Consents.  Guarantor  hereby  consents  and agrees,  to the maximum
extent  permitted by law,  that,  without  notice to or by Guarantor and without
affecting  or  impairing  in any way the  obligations  or liability of Guarantor
hereunder,  Coast  may,  from time to time  before or after  revocation  of this
Guaranty,  do any one or more of the  following  in  Coast's  sole and  absolute
discretion:  (a) accelerate,  accept partial payments of,  compromise or settle,
renew, extend the time for the payment,  discharge, or performance of, refuse to
enforce, and release all or any parties to, any or all of the Indebtedness;  (b)
grant any other  indulgence to Borrower or any other person in respect of any or
all of the  Indebtedness  or any  other  matter;  (c)  accept,  release,  waive,
surrender,  enforce,  exchange,  modify,  impair,  or  extend  the  time for the
performance, discharge, or payment of, any and all property of any kind securing
any  or  all  of  the  Indebtedness  or  any  guaranty  of  any  or  all  of the
Indebtedness,  or on which  Coast at any time  may  have a lien,  or  refuse  to
enforce its rights or make any compromise or settlement or agreement therefor in
respect  of any or all of such  property;  (d)  substitute  or add,  or take any
action or omit to take any action  which  results in the  release of, any one or
more endorsers or guarantors of all or any part of the Indebtedness,  including,
without  limitation  one or more  parties to this  Guaranty,  regardless  of any
destruction  or  impairment  of any  right of  contribution  or  other  right of
Guarantor;  (e) amend,  alter or change in any  respect  whatsoever  any term or
provision  relating  to any or all of the  Indebtedness,  including  the rate of
interest  thereon;  (f)  apply  any  sums  received  from  Borrower,  any  other
guarantor,  endorser, or co-signer, or from the disposition of any collateral or
security,  to any  indebtedness  whatsoever owing from such person or secured by
such collateral or security, in such manner and order as Coast determines in its
sole  discretion,  and  regardless of whether such  indebtedness  is part of the
Indebtedness,  is secured,  or is due and payable;  (g) apply any sums  received
from Guarantor or from the  disposition  of any collateral or security  securing
the  obligations  of Guarantor,  to any of the  Indebtedness  in such manner and
order as Coast determines in its sole  discretion,  regardless of whether or not
<PAGE>
such  Indebtedness is secured or is due and payable.  Guarantor,  to the maximum
extent  permitted  by law,  consents  and agrees  that  Coast  shall be under no
obligation to marshal any assets in favor of Guarantor, or against or in payment
of any or all of the  Indebtedness.  Guarantor  further consents and agrees that
any and all duties and responsibilities  imposed on Coast by operation of law or
otherwise with respect to any property  securing any or all of the  Indebtedness
shall be deemed  waived to the extent  such  duties or  responsibilities  may be
waived by consent or agreement of the parties.  Without  limiting the generality
of the  foregoing,  Coast shall have no  obligation to monitor,  verify,  audit,
examine,  or obtain or maintain  any  insurance  with  respect to, any  property
securing any or all of the Indebtedness.

         4.  Account  Stated.  Coast's  books and  records  showing  the account
between it and the Borrower  shall be  admissible  in  evidence,  to the maximum
extent permitted by law, in any action or proceeding as prima facie proof of the
items therein set forth.  Coast's  monthly  statements  rendered to the Borrower
shall be binding  upon the  Guarantor  (whether  or not the  Guarantor  receives
copies  thereof),  and shall  constitute an account stated between Coast and the
Borrower, unless Coast receives a written statement of the Borrower's exceptions
within 30 days after the  statement  was mailed to the  Borrower.  The Guarantor
assumes full responsibility for obtaining copies of such monthly statements from
the Borrower, if the Guarantor desires such copies.

         5.  Exercise  of  Rights  and  Remedies;  Foreclosure  of Trust  Deeds.
Guarantor,  to the maximum  extent  permitted by law,  consents and agrees that,
without notice to or by Guarantor and without  affecting or impairing in any way
the  obligations  or liability of Guarantor  hereunder,  Coast may, from time to
time, before or after revocation of this Guaranty,  exercise any right or remedy
it may have  with  respect  to any or all of the  Indebtedness  or any  property
securing  any or all of the  Indebtedness  or any  guaranty  thereof,  including
without limitation judicial foreclosure,  nonjudicial foreclosure, exercise of a
power of sale, and taking a deed,  assignment or transfer in lieu of foreclosure
as to any such property, and Guarantor,  to the maximum extent permitted by law,
expressly  waives  any  defense  based  upon the  exercise  of any such right or
remedy,  notwithstanding  the effect  thereof  upon any of  Guarantor's  rights,
including   without   limitation,   any  destruction  of  Guarantor's  right  of
subrogation  against  Borrower  and any  destruction  of  Guarantor's  right  of
contribution  or other right  against any other  guarantor  of any or all of the
Indebtedness or against any other person, whether by operation of Sections 580a,
580d  or 726 of the  California  Code  of  Civil  Procedure,  or any  comparable
provisions of the laws of any other jurisdiction, or any other statutes or rules
of law or decisional law now or hereafter in effect,  or otherwise  ("Comparable
Law").  Without limiting the generality of the foregoing,  to the maximum extent
permitted by law, (a) Guarantor waives all rights and defenses arising out of an
election of remedies by Coast, even though that election of remedies,  such as a
nonjudicial  foreclosure  with respect to security for any of the  Indebtedness,
has destroyed the Guarantor's  rights of subrogation and  reimbursement  against
the principal by the operation of Section 580d of the Code of Civil Procedure or
Comparable Law; (b) Guarantor further waives all rights and defenses arising out
of an election of remedies by Coast, even though that election of remedies, such
as  a  nonjudicial   foreclosure  with  respect  to  security  for  any  of  the
Indebtedness, has destroyed the Guarantor's rights of subrogation, reimbursement
and contribution  against any other guarantor of the guaranteed  obligation,  by
the operation of Section 580d of the Code of Civil  Procedure or Comparable Law;
(c) Guarantor  understands  that if Coast forecloses any present or future trust
deed,  which secures any or all of the  Indebtedness  or which secures any other
guaranty  of  any  or  all of  the  Indebtedness,  by  nonjudicial  foreclosure,
Guarantor  may, as a result,  have a complete  defense to  liability  under this
<PAGE>
Guaranty, based on the legal doctrine of estoppel and Sections 580a, 580d or 726
of the  California  Code of Civil  Procedure or  Comparable  Law, and  Guarantor
hereby expressly waives all such defenses.  (d) Guarantor understands and agrees
that, in the event Coast in its sole discretion forecloses any trust deed now or
hereafter securing any or all of the Indebtedness,  by nonjudicial  foreclosure,
Guarantor will remain liable to Coast for any deficiency,  even though Guarantor
will  lose his  right of  subrogation  against  the  Borrower,  and even  though
Guarantor  will be  unable  to  recover  from the  Borrower  the  amount  of the
deficiency  for which  Guarantor is liable,  and even though  Guarantor may have
retained his right of subrogation  against Borrower if Coast had foreclosed said
trust deed by judicial  foreclosure as opposed to nonjudicial  foreclosure,  and
even  though  absent  the  waivers  set forth  herein  Guarantor  may have had a
complete  defense to any liability for any deficiency  hereunder;  (e) Guarantor
understands  and  agrees  that,  in  the  event  Coast  in its  sole  discretion
forecloses any trust deed now or hereafter securing any other guaranty of any or
all of the  Indebtedness,  by  nonjudicial  foreclosure,  Guarantor  will remain
liable to Coast for any deficiency, even though Guarantor will lose his right of
subrogation  or  contribution  against  the  other  guarantor,  and even  though
Guarantor  will be unable to recover  from the other  guarantor  any part of the
deficiency  for which  Guarantor is liable,  and even though  Guarantor may have
retained his right of subrogation or contribution against the other guarantor if
Coast had  foreclosed  said trust  deed by  judicial  foreclosure  as opposed to
nonjudicial  foreclosure,  and even though  absent the waivers set forth  herein
Guarantor may have had a complete  defense to any  liability for any  deficiency
hereunder.

         6.  Acceleration.  Notwithstanding  the terms of all or any part of the
Indebtedness,  the obligations of the Guarantor hereunder to pay and perform all
of the Indebtedness  shall, at the option of Coast,  immediately  become due and
payable,  without notice, and without regard to the expressed maturity of any of
the  Indebtedness,  in the event: (a) any warranty,  representation,  statement,
report,  or certificate made or delivered to Coast by Borrower or Guarantor,  or
any of their respective officers, partners,  employees, or agents, is incorrect,
false, untrue, or misleading when given in any material respect, or (b) Borrower
or  Guarantor  shall  fail to pay or  perform  when  due all or any  part of the
Indebtedness;  or (c) Guarantor shall fail to pay or perform within 5 days after
the same is due any  indebtedness  or obligation of Guarantor to Coast or to any
parent,  subsidiary or corporate affiliate of Coast, whether under this Guaranty
or any other instrument,  document, or agreement heretofore or hereafter entered
into; or (d) there occurs in Coast's good faith exercise of reasonable  judgment
a material impairment of the prospect of payment or performance of any or all of
the  Indebtedness;  or (e) any  event  shall  occur  which  does  result  in the
acceleration  of the  maturity of any  indebtedness  of Borrower or Guarantor to
others  in  excess  of  $25,000   (regardless  of  any  requirement  of  notice,
opportunity  to cure or other  condition  prior to the  exercise of any right of
acceleration);  or (f) Borrower or Guarantor  shall fail  promptly to perform or
comply with any term or  condition of any  agreement  with any third party which
does or could result in a material adverse effect on the business of Borrower or
Guarantor  unless timely cured or waived in writing by such third party;  or (g)
there shall be made or exist any levy, assessment, attachment, seizure, lien, or
encumbrance for any cause or reason  whatsoever upon all or any material part of
the property of Borrower or Guarantor (unless discharged by payment,  release or
bond not more than ten days after such event has  occurred);  or (h) there shall
occur the dissolution, termination of existence, insolvency, or business failure
of Borrower or Guarantor, or the appointment of a receiver, trustee or custodian
<PAGE>
for  Borrower or Guarantor or all or any part of the property of either of them,
or the assignment for the benefit of creditors by Borrower or Guarantor,  or the
commencement  of any  proceeding by or against  Borrower or Guarantor  under any
reorganization,  bankruptcy,  insolvency,  arrangement,  readjustment  of  debt,
dissolution or liquidation law or statute of any jurisdiction,  now or hereafter
in effect  which,  if  commenced  by or against  Borrower or  Guarantor,  is not
dismissed  within  thirty  (30) days;  or (i)  Borrower  or  Guarantor  shall be
deceased or declared incompetent by any court or a guardian or conservator shall
be appointed  for either of them or for the  property of either of them;  or (j)
Guarantor or Borrower  shall  generally not pay their  respective  debts as they
become due or shall enter into any agreement (whether written or oral), or offer
to enter  into any such  agreement,  with  all or a  significant  number  of its
creditors regarding any moratorium or other indulgence with respect to its debts
or  the  participation  of  such  creditors  or  their  representatives  in  the
supervision,  management,  or control of the business of either of them;  or (k)
Borrower or Guarantor shall conceal, remove or permit to be concealed or removed
any part of its property, with intent to hinder, delay or defraud its creditors,
or make or suffer any transfer (unless it is permitted by the Loan Agreement) of
any of its property which would be fraudulent  under any bankruptcy,  fraudulent
conveyance or similar law, or shall make any transfer (not  permitted by law) of
its  property  to or for  the  benefit  of any  creditor  at a time  when  other
creditors  similarly  situated have not been paid; or (l) the board of directors
or  shareholders of Borrower or Guarantor shall adopt any resolution or plan for
its dissolution or the liquidation of all or substantially all of its assets; or
(m) Guarantor shall revoke this Guaranty or contest or deny liability under this
Guaranty.  All of the  foregoing  are  hereinafter  referred  to as  "Events  of
Default".

         7. Right to Attachment Remedy.  Guarantor agrees that,  notwithstanding
the  existence of any property  securing any or all of the  Indebtedness,  Coast
shall have all of the rights of an unsecured  creditor of  Guarantor,  including
without limitation the right to obtain a temporary  protective order and writ of
attachment  against  Guarantor with respect to any sums due under this Guaranty.
Guarantor  further agrees that in the event any property secures the obligations
of  Guarantor  under this  Guaranty,  to the extent that Coast,  in its sole and
absolute  discretion,  determines prior to the disposition of such property that
the amount to be realized by Coast  therefrom may be less than the  indebtedness
of the  Guarantor  under this  Guaranty,  Coast  shall have all the rights of an
unsecured creditor against Guarantor,  including without limitation the right of
Coast,  prior  to the  disposition  of said  property,  to  obtain  a  temporary
protective order and writ of attachment  against  Guarantor.  Guarantor,  to the
maximum extent permitted by law, waives the benefit of Section 483.010(b) of the
California  Code of Civil  Procedure or Comparable  Law and of any and all other
statutes and rules of law now or hereafter  in effect  requiring  Coast to first
resort to or  exhaust  all such  collateral  before  seeking  or  obtaining  any
attachment remedy against Guarantor.  Coast shall have no liability to Guarantor
as a result thereof,  whether or not the actual deficiency  realized by Coast is
less  than the  anticipated  deficiency  on the basis of which  Coast  obtains a
temporary protective order or writ of attachment.

         8. Indemnity. Guarantor hereby agrees to indemnify Coast and hold Coast
harmless  from and  against  any and all claims,  debts,  liabilities,  demands,
obligations, actions, causes of action, penalties, costs and expenses (including
without limitation attorneys' fees), of every nature, character and description,
which  Coast  may  sustain  or incur  based  upon or  arising  out of any of the
Indebtedness,  any  actual  or  alleged  failure  to  collect  and pay  over any
<PAGE>
withholding or other tax relating to Borrower or its employees, any relationship
or agreement between Coast and Borrower,  any actual or alleged failure of Coast
to  comply  with any writ of  attachment  or other  legal  process  relating  to
Borrower or any of its property,  or any other matter, cause or thing whatsoever
occurred,  done,  omitted or suffered to be done by Coast relating in any way to
Borrower or the Indebtedness  (except any such amounts  sustained or incurred as
the result of the gross negligence or willful  misconduct of Coast or any of its
directors,   officers,   employees,  agents,  attorneys,  or  any  other  person
affiliated with or representing  Coast).  Notwithstanding  any provision in this
Guaranty to the  contrary,  the  indemnity  agreement  set forth in this Section
shall survive any  termination  or revocation of this Guaranty and shall for all
purposes continue in full force and effect.

         9. Subordination.  Any and all debts, liabilities and obligations owing
from Borrower to Guarantor including any security for and guaranties of any such
obligations,  whether now existing or hereafter arising, are hereby subordinated
in right of  payment to the prior  payment  in full of all of the  Indebtedness.
Except as permitted in that certain  Subordination  Agreement  between Guarantor
and Coast dated as of the date  hereof,  and any written  amendments  there,  no
payment  in respect of any such  subordinated  obligations  shall at any time be
made to or accepted by Guarantor if at the time of such payment any Indebtedness
is outstanding  unless Coast, in its sole discretion,  agrees to such payment in
writing.  The  agreement by Coast to a payment on account of  subordinated  debt
shall not constitute an agreement to the payment of any other subordinated debt.
If any Event of Default has occurred,  all debts,  liabilities  and  obligations
owing  form  Borrower  to  Guarantor  shall be  subordinated,  Borrower  and any
assignee, trustee in bankruptcy, receiver, or any other person having custody or
control  ever  any or all of  Borrower's  property  are  hereby  authorized  and
directed to pay to Coast the entire unpaid  balance of the  Indebtedness  before
making any payments whatsoever to Guarantor, whether as a creditor, shareholder,
or otherwise; and insofar as may be necessary for that purpose, Guarantor hereby
assigns and transfers to Coast all rights to any and all debts,  liabilities and
obligations  owing from  Borrower to  Guarantor,  including any security for and
guaranties of any such obligations,  whether now existing or hereafter  arising,
including without limitation any payments, dividends or distributions out of the
business assets of Borrower.  Any amounts  received by Guarantor in violation of
the foregoing  provisions  shall be received and held as trustee for the benefit
of  Coast  and  shall  forthwith  be paid  over to Coast  to be  applied  to the
Indebtedness  in such order and  sequence as Coast shall in its sole  discretion
determine,  without  limiting or affecting any other right or remedy which Coast
may have hereunder or otherwise and without otherwise affecting the liability of
Guarantor  hereunder.  Guarantor hereby expressly waives any right to set-off or
assert any counterclaim against Borrower.

         10.  Revocation.  This is a Continuing  Guaranty relating to all of the
Indebtedness, including Indebtedness arising under successive transactions which
from  time to time  continue  the  Indebtedness  or  renew  it after it has been
satisfied.  Guarantor,  to the  maximum  extent  permitted  by law,  waives  all
benefits of California  Civil Code Section 2815 and  Comparable  Law, and agrees
that the obligations of Guarantor  hereunder may not be terminated or revoked in
any manner except by giving written notice of revocation to Coast at its address
above by registered  first-class  U.S.  mail,  postage  prepaid,  return receipt
requested,  and only as to new  loans  made by Coast to  Borrower  after  actual
receipt of such written  notice by Coast.  No  termination or revocation of this
Guaranty shall be effective  until actual  receipt or, if properly  delivered to
Coast in accordance  herewith and Coast wrongfully or without just cause refuses
to  accept   delivery,   of  said  written   notice  of   revocation  by  Coast.
Notwithstanding  such written notice of revocation or any other act of Guarantor
or any other event or circumstance,  Guarantor agrees that this Guaranty and all
<PAGE>
consents,  waivers and other provisions  hereof shall continue in full force and
effect as to any and all Indebtedness  which is outstanding on or before the day
following  actual  receipt  or, if  properly  delivered  to Coast in  accordance
herewith and Coast  wrongfully or without just cause refuses to accept delivery,
of said written notice of revocation by Coast, and all extensions,  renewals and
modifications of said Indebtedness  (including  without  limitation  amendments,
extensions,  renewals and modifications which are evidenced by new or additional
instruments, documents or agreements executed before receipt of revocation), and
all attorneys'  fees,  court costs and collection  charges,  incurred  before or
after receipt of  revocation,  in  endeavoring  to collect or enforce any of the
foregoing  against  Borrower,  Guarantor  or any  other  person  liable  thereon
(whether or not suit be brought) and any other expenses of, for or incidental to
collection thereof.

         11.  Independent  Liability.  Guarantor  hereby agrees that one or more
successive or concurrent actions may be brought hereon against Guarantor, in the
same action in which  Borrower may be sued or in separate  actions,  as often as
deemed advisable by Coast. The liability of Guarantor hereunder is exclusive and
independent  of any other  guaranty  of any or all of the  Indebtedness  whether
executed by Guarantor or by any other guarantor  (including  without  limitation
any other persons signing this Guaranty).  The liability of Guarantor  hereunder
shall not be affected,  revoked,  impaired, or reduced by any one or more of the
following:  (a) the fact that the  Indebtedness  exceeds the  maximum  amount of
Guarantor's  liability,  if any, specified herein or elsewhere (and no agreement
specifying a maximum amount of Guarantor's liability shall be enforceable unless
set forth in a writing  signed by Coast or set forth in this  Guaranty);  or (b)
any  direction  as to the  application  of payment by  Borrower  or by any other
party; or (c) any other continuing or restrictive guaranty or undertaking or any
limitation on the liability of any other guarantor  (whether under this Guaranty
or under any other  agreement);  or (d) any payment on or  reduction of any such
other guaranty or undertaking; or (e) any revocation, amendment, modification or
release of any such other  guaranty or  undertaking;  or (f) any  dissolution or
termination of, or increase,  decrease, or change in membership of any Guarantor
which is a partnership.  Guarantor hereby  expressly  represents that he was not
induced  to give  this  Guaranty  by the  fact  that  there  are or may be other
guarantors  either under this Guaranty or otherwise,  and Guarantor  agrees that
any  release  of any one or more of such  other  guarantors  shall  not  release
Guarantor from his obligations hereunder either in full or to any lesser extent.

         12.  Financial  Condition of Borrower.  Guarantor is fully aware of the
financial condition of Borrower and is executing and delivering this Guaranty at
Borrower's  request and based solely upon his own independent  investigation  of
all matters  pertinent  hereto,  and Guarantor is not relying in any manner upon
any  representation  or  statement  of Coast  with  respect  thereto.  Guarantor
represents and warrants that he is in a position to obtain, and Guarantor hereby
assumes full responsibility for obtaining, any additional information concerning
Borrower's  financial  condition  and  any  other  matter  pertinent  hereto  as
Guarantor may desire,  and  Guarantor is not relying upon or expecting  Coast to
furnish to him any information now or hereafter in Coast's possession concerning
the same or any other matter.  By executing this Guaranty,  Guarantor  knowingly
accepts  the full range of risks  encompassed  within a contract  of  continuing
guaranty,  which risks Guarantor  acknowledges  include  without  limitation the
possibility that Borrower will incur additional Indebtedness for which Guarantor
will be liable hereunder after Borrower's  financial condition or ability to pay
such  Indebtedness  has  deteriorated  and/or  after  bankruptcy  or  insolvency
proceedings have been commenced by or against Borrower.  Guarantor shall have no
right to require Coast to obtain or disclose any information with respect to the
<PAGE>
Indebtedness, the financial condition or character of Borrower, the existence of
any collateral or security for any or all of the Indebtedness,  the filing by or
against  Borrower of any bankruptcy or insolvency  proceeding,  the existence of
any  other  guaranties  of all or any part of the  Indebtedness,  any  action or
non-action on the part of Coast,  Borrower,  or any other  person,  or any other
matter, fact, or occurrence.

         13. Reports and Financial Statements of Guarantor.  Guarantor shall, at
its sole cost and expense,  at any time and from time to time,  prepare or cause
to be  prepared,  and provide to Coast upon Coast's  request (i) such  financial
statements  and reports  concerning  Guarantor for such periods of time as Coast
may designate as are customarily  prepared by Guarantor or which are required by
the Loan Agreement and any other related  document or agreement,  (ii) any other
information concerning  Guarantor's business,  financial condition or affairs as
Coast may in the exercise of its good faith business judgment request, and (iii)
copies of any and all foreign,  federal, state and local tax returns and reports
of or relating  to  Guarantor  as Coast may from time to time  request and Coast
shall take  reasonable  steps to keep  confidential  all tax returns and reports
obtained by Coast, but Coast shall have the right to disclose such documents and
information  contained  therein  to  its  auditors,   regulatory  agencies,  and
attorneys, and pursuant to any subpoena or other legal process. Guarantor hereby
intentionally and knowingly waives any and all rights and privileges it may have
not to divulge or deliver said tax returns,  reports and other information which
are  requested  by Coast  hereunder or in any  litigation  in which Coast may be
involved relating directly or indirectly to Borrower or to Guarantor.  Guarantor
further  agrees  immediately  to give  written  notice to Coast of any  material
adverse change in Guarantor's  financial condition and of any condition or event
which  constitutes  an Event of Default  under this  Guaranty.  All  reports and
information furnished to Coast hereunder shall be complete, accurate and correct
in all respects. Whenever requested,  Guarantor shall further deliver to Coast a
certificate  signed by Guarantor  (and,  if Guarantor is a  partnership,  by all
general partners of Guarantor, in their individual capacities, and, if Guarantor
is a corporation,  by an officer of Guarantor  approved by Coast) warranting and
representing  that all reports,  financial  statements  and other  documents and
information  delivered or caused to be  delivered to Coast under this  Guaranty,
are  complete,  correct and  thoroughly  and  accurately  present the  financial
condition  of  Guarantor,  and that there exists on the date of delivery of said
certificate to Coast no condition or event which constitutes an Event of Default
under this Guaranty.

         14.  Representations  and Warranties.  Guarantor hereby  represents and
warrants that (i) it is in  Guarantor's  direct  interest to assist  Borrower in
procuring credit, because Borrower is an affiliate of Guarantor, furnishes goods
or  services  to  Guarantor,  purchases  or  acquires  goods  or  services  from
Guarantor,  and/or  otherwise  has a direct or  indirect  corporate  or business
relationship  with  Guarantor,  and  Guarantor  has  a  financial  interest  and
investment in Borrower, (ii) this Guaranty has been duly and validly authorized,
executed and  delivered  and  constitutes  the valid and binding  obligation  of
Guarantor, enforceable in accordance with its terms, and (iii) the execution and
delivery of this  Guaranty  does not violate or constitute a default under (with
or  without  the  giving of notice,  the  passage  of time,  or both) any order,
judgment,  decree,  instrument or agreement to which  Guarantor is a party or by
which it or its assets are affected or bound.
<PAGE>
         15.  Costs.  Whether  or not suit be  instituted,  Guarantor  agrees to
reimburse  Coast on  demand  for all  reasonable  attorneys'  fees and all other
reasonable costs and expenses  incurred by Coast in enforcing this Guaranty,  or
arising out of or relating in any way to this  Guaranty,  or in enforcing any of
the  Indebtedness  against  Borrower,  Guarantor,  or any  other  person,  or in
connection  with  any  property  of any  kind  securing  all or any  part of the
Indebtedness.  Without limiting the generality of the foregoing, and in addition
thereto, Guarantor shall reimburse Coast on demand for all reasonable attorneys'
fees and costs Coast  incurs in any way relating to  Guarantor,  Borrower or the
Indebtedness,  in order to: obtain legal advice;  enforce or seek to enforce any
of its  rights;  commence,  intervene  in,  respond  to, or defend any action or
proceeding; file, prosecute or defend any claim or cause of action in any action
or proceeding (including without limitation any probate claim, bankruptcy claim,
third-party claim, secured creditor claim,  reclamation complaint, and complaint
for  relief  from any stay under the  Bankruptcy  Code or  otherwise);  protect,
obtain possession of, sell, lease,  dispose of or otherwise enforce any security
interest  in or lien on any  property  of any  kind  securing  any or all of the
Indebtedness; or represent Coast in any litigation with respect to Borrower's or
Guarantor's  affairs.  In the event either Coast or Guarantor  files any lawsuit
against the other predicated on a breach of this Guaranty, to the maximum extent
permitted  by law,  the  prevailing  party in such  action  shall be entitled to
recover its attorneys' fees and costs of suit from the non-prevailing party.

         16. Notices. Any notice which a party shall be required or shall desire
to give to the other hereunder (except for notice of revocation,  which shall be
governed by Section 10 of this Guaranty) shall be given by personal  delivery or
by telecopier or by depositing  the same in the United States mail,  first class
postage pre-paid,  addressed to Coast at its address set forth in the heading of
this  Guaranty  and to  Guarantor  at his address set forth under his  signature
hereon,  and such  notices  shall be deemed  duly given on the date of  personal
delivery or one day after the date  telecopied or 3 business days after the date
of mailing as  aforesaid.  Coast and  Guarantor  may change  their  address  for
purposes of receiving  notices hereunder by giving written notice thereof to the
other party in accordance herewith. Guarantor shall give Coast immediate written
notice of any change in his address.

         17.  Claims.  Guarantor  agrees  that any  claim or cause of  action by
Guarantor  against  Coast,  or any of Coast's  directors,  officers,  employees,
agents,  accountants or attorneys, based upon, arising from, or relating to this
Guaranty,  or any other present or future agreement  between Coast and Guarantor
or between Coast and Borrower,  or any other transaction  contemplated hereby or
thereby or  relating  hereto or  thereto,  or any other  matter,  cause or thing
whatsoever,  whether or not relating hereto or thereto,  occurred, done, omitted
or suffered to be done by Coast, or by Coast's directors,  officers,  employees,
agents,  accountants  or attorneys,  whether  sounding in contract or in tort or
otherwise,  shall be barred unless asserted by Guarantor by the  commencement of
an action or proceeding in a court of competent  jurisdiction within Los Angeles
County, California, by the filing of a complaint within one year after the first
act,  occurrence  or omission  upon which such claim or cause of action,  or any
part  thereof,  is based and service of a summons and complaint on an officer of
Coast or any other person  authorized to accept  service of process on behalf of
Coast, within 30 days thereafter.  Guarantor agrees that such one year period is
a reasonable and sufficient  time for Guarantor to investigate  and act upon any
such claim or cause of action.  The one year period provided herein shall not be
waived,  tolled,  or extended except by a specific  written  agreement of Coast.
This  provision  shall  survive any  termination  of this  Guaranty or any other
agreement.
<PAGE>
18.  Construction;  Severability.  If more than one  person  has  executed  this
Guaranty or hereafter executes this or a Guaranty of the obligations of Borrower
(all or less than all Borrowers),  the term  "Guarantor" as used herein shall be
deemed to refer to all and any one or more such  persons  and their  obligations
hereunder  shall be joint and several.  Without  limiting the  generality of the
foregoing,  if more than one person has executed  this  Guaranty,  this Guaranty
shall in all respects be interpreted as though each person signing this Guaranty
had signed a separate  Guaranty,  and references herein to "other guarantors" or
words of similar effect shall include without  limitation  other persons signing
this Guaranty. As used in this Guaranty, the term "property" is used in its most
comprehensive  sense  and  shall  mean all  property  of every  kind and  nature
whatsoever, including without limitation real property, personal property, mixed
property,  tangible property and intangible  property.  Words used herein in the
masculine gender shall include the neuter and feminine gender, words used herein
in the neuter gender shall include the masculine and feminine, words used herein
in the  singular  shall  include  the plural and words used in the plural  shall
include the  singular,  wherever  the  context so  reasonably  requires.  If any
provision  of  this  Guaranty  or  the  application  thereof  to  any  party  or
circumstance is held invalid, void, inoperative or unenforceable,  the remainder
of this  Guaranty and the  application  of such  provision  to other  parties or
circumstances  shall not be affected  thereby,  the  provisions of this Guaranty
being severable in any such instance.

         19.  General  Provisions.  Coast shall have the right to seek  recourse
against  Guarantor  to the full  extent  provided  for  herein  and in any other
instrument  or agreement  evidencing  obligations  of  Guarantor  to Coast,  and
against Borrower to the full extent of the Indebtedness. No election in one form
of action or  proceeding,  or against  any party,  or on any  obligation,  shall
constitute  a waiver of Coast's  right to proceed in any other form of action or
proceeding  or against any other  party.  The failure of Coast to enforce any of
the  provisions of this Guaranty at any time or for any period of time shall not
be construed to be a waiver of any such  provision  or the right  thereafter  to
enforce the same.  All remedies  hereunder  shall be cumulative  and shall be in
addition to all rights,  powers and remedies  given to Coast by law or under any
other  instrument or  agreement.  Time is of the essence in the  performance  by
Guarantor of each and every  obligation  under this  Guaranty.  If Borrower is a
corporation,  partnership  or other entity,  Guarantor  hereby agrees that Coast
shall have no  obligation  to inquire into the power or authority of Borrower or
any of its officers, directors,  partners, or agents acting or purporting to act
on its  behalf,  and any  Indebtedness  made or  created  in  reliance  upon the
professed  exercise  of any such power or  authority  shall be  included  in the
Indebtedness  guaranteed hereby.  This Guaranty is the entire and only agreement
between  Guarantor and Coast with respect to the guaranty of the Indebtedness of
Borrower by  Guarantor,  and all  representations,  warranties,  agreements,  or
undertakings  heretofore  or  contemporaneously  made,  which  are not set forth
herein,  are superseded  hereby.  No course of dealings between the parties,  no
usage of the trade,  and no parol or  extrinsic  evidence of any nature shall be
used or be relevant to  supplement or explain or modify any term or provision of
this  Guaranty.  There  are no  conditions  to the  full  effectiveness  of this
Guaranty. The terms and provisions hereof may not be waived, altered,  modified,
or amended  except in a writing  executed  by  Guarantor  and a duly  authorized
officer of Coast. All rights,  benefits and privileges  hereunder shall inure to
the benefit of and be  enforceable  by Coast and its  successors and assigns and
shall be  binding  upon  Guarantor  and his  heirs,  executors,  administrators,
personal representatives, successors and assigns. Neither the death of Guarantor
<PAGE>
nor notice thereof to Coast shall terminate this Guaranty as to his estate, and,
notwithstanding the death of Guarantor or notice thereof to Coast, this Guaranty
shall  continue  in full force and  effect  with  respect  to all  Indebtedness,
including without limitation Indebtedness incurred or created after the death of
Guarantor  and notice  thereof to Coast.  Section  headings  are used herein for
convenience  only.  Guarantor  acknowledges  that  the  same  may  not  describe
completely the subject matter of the applicable Section,  and the same shall not
be used in any  manner  to  construe,  limit,  define or  interpret  any term or
provision hereof.

         20.  One  Satisfaction.  Notwithstanding  any other  provision  of this
Continuing  Guaranty to the  contrary,  nothing  herein  shall  permit  Coast to
receive more payments than which, in the aggregate,  would be required under the
Loan Agreement and all related documents and agreements as they may be modified,
amended or supplemented from time to time, to indefeasibly satisfy, in full, any
and all Obligations of Borrower to Coast.

         21. Governing Law; Venue and Jurisdiction. This instrument and all acts
and  transactions  pursuant or relating hereto and all rights and obligations of
the parties hereto shall be governed,  construed,  and interpreted in accordance
with the internal laws of the State of  California.  In order to induce Coast to
accept this  Guaranty,  and as a material  part of the  consideration  therefor,
Guarantor  (i) agrees  that all  actions or  proceedings  relating  directly  or
indirectly  hereto shall, at the option of Coast, be litigated in courts located
within Los Angeles County, California,  (ii) consents to the jurisdiction of any
such  court  and  consents  to the  service  of  process  in any such  action or
proceeding by personal  delivery or any other method permitted by law; and (iii)
waives any and all rights  Guarantor may have to transfer or change the venue of
any such action or proceeding.

         22.  Mutual Waiver of Right to Jury Trial.  COAST AND GUARANTOR  HEREBY
WAIVE THE RIGHT TO TRIAL BY JURY IN ANY  ACTION,  CLAIM,  LAWSUIT OR  PROCEEDING
BASED UPON, ARISING OUT OF, OR IN ANY WAY RELATING TO: (i) THIS GUARANTEE OR ANY
SUPPLEMENT OR AMENDMENT THERETO;  OR (ii) ANY OTHER PRESENT OR FUTURE INSTRUMENT
OR AGREEMENT BETWEEN COAST AND GUARANTOR UNLESS OTHERWISE EXPRESSLY AGREED TO IN
WRITING ; OR (iii) ANY BREACH,  CONDUCT, ACTS OR OMISSIONS OF COAST OR GUARANTOR
OR ANY OF THEIR RESPECTIVE DIRECTORS,  OFFICERS, EMPLOYEES, AGENTS, ATTORNEYS OR
ANY OTHER PERSON AFFILIATED WITH OR REPRESENTING COAST OR GUARANTOR;  IN EACH OF
THE FOREGOING CASES, WHETHER SOUNDING IN CONTRACT OR TORT OR OTHERWISE.

         23.  Unless  and  until the  Indebtedness  being  guaranteed  hereby is
indefeasibly  paid and satisfied in full,  Guarantor will not, without the prior
express written consent of Coast,  pay or declare any dividends or distributions
on  the   ownership   interests  in  Guarantor   except  for  (a)  dividends  or
distributions  payable solely in stock form of ownership  interests in Guarantor
and (b) dividends to Guarantor if, when and to the extent  required by Guarantor
in order to make  regularly-scheduled  payments of principal and interest on the
12 3/4% $75,000,000.00 Senior Notes issued by Guarantor, provided such dividends
or payments  on the 12 3/4% Senior  Notes would not result in a Default or Event
of Default by  Borrower or  Guarantor  with  respect to any of their  respective
obligations to Coast.

         23. Receipt of Copy.  Guarantor  acknowledges receipt of a copy of this
Guaranty.
<PAGE>
VIALOG CORPORATION


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

Title    Vice President - Finance

Address:         35 New England Business Center
                 Suite 160
                 Andover, Massachusetts 01810
                 Attention:  John Dion


Agreed:


COAST BUSINESS CREDIT(R), a division of Southern Pacific Bank


By       /s/Robert D. Peters
         -------------------
         Robert D. Peters

Title    Vice President

Address:         12121 Wilshire Boulevard
                 Suite 1111
                 Los Angeles, California 90025
                 Attention:  Edit Kondorosi
                             Sr. Vice President

STATE OF    Massachusetts                   )
                                            ) ss.
COUNTY OF   Essex                           )

         On October 1, 1998,  before me, Therese J. LaPrade  Commission  expires
May 28, 2004, Notary Public,  personally appeared John Dion, personally known to
me (or proved to me on the basis of  satisfactory  evidence) to be the person(s)
whose name(s) is/are  subscribed to the within instrument and acknowledged to me
that he/she/they  executed the same in his/her/their  authorized  capacity(ies),
and that by his/her/their  signature(s) on the instrument the person(s),  or the
entity upon behalf of which the person(s) acted, executed the instrument.

                                              Witness my hand and official seal.


                                              /s/Therese J. LaPrade
                                              -------------------------------
                                              Therese J. LaPrade
                                                          (Seal)


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