GLOBAL TELECOMMUNICATION SOLUTIONS, INC.
                             5697 RISING SUN AVENUE
                        PHILADELPHIA, PENNSYLVANIA 19120





                                            As of September 30, 1998

Mr. David Tobin
5930 N.W. 96th Drive
Parkland, Florida 33076


         Re:      Employment Agreement

Dear David:

         This letter,  effective upon your  execution and its return,  shall set
forth  our  complete   agreement  in  connection  with  the  modification   (the
"Amendment")   to   the   Employment    Agreement   between   you   and   Global
Telecommunication  Solutions,  Inc.  (the  "Company"),  dated as of February 29,
1996,  as  amended  by  agreement  dated  November  10,  1997  (the  "Employment
Agreement")  and to the other matters set forth herein.  This letter  agreement,
when countersigned by you, amends the Employment Agreement.

1.       Section 1 of the  Employment  Agreement  is hereby  deleted.  Executive
         acknowledges  and agrees that effective  September 30, 1998,  Executive
         shall no longer serve as Executive Vice  President of Business  Affairs
         and General  Counsel of the Company.  Executive  agrees to use his best
         efforts to ensure an orderly transition and to provide the Company with
         assistance in those projects that Executive is managing as of September
         30, 1998.

2.       Section 2.1 of the Employment  Agreement is amended to read as follows:
         "As of October 1,  1998,  the  Company  shall pay to  Executive  a base
         salary  ("Salary") of $87,500 per annum through the Employment Term (as
         such term is defined in Section 3.1 below). Executive's salary shall be
         paid in equal,  periodic  installments in accordance with the Company's
         normal payroll procedures and shall be subject to withholding taxes and
         other normal payroll deductions."

3.       Executive  and the  Company  acknowledge  and  agree  that all  Options
         granted to date shall remain exercisable until December 31, 2001.

4.       Section  2.4 of the  Employment  Agreement  shall be amended to read as
         follows:  "Executive  shall be entitled  to  continue  to receive  such
         health  insurance and other benefits and  perquisites no less favorable
         than such as are afforded to any other senior  executive of the Company
         through the Employment Term; provided,  however, in the event Executive
         becomes  employed  after the date of this Amendment and, as a result of
         such  employment,  Executive  is  eligible  to  participate  in his new
         employer's  group health  insurance  plan, the Company's  obligation to
         provide health insurance hereunder shall terminate as of the date

                                                    

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Mr. David Tobin
As of September 30, 1998
Page 2




         Executive is so eligible."

5.       Section  2.7 has been  added  to the  Employment  Agreement  to read as
         follows:  "The Company  shall  reimburse  Executive  $4,500 for typical
         moving expenses within 30 days of the date of the Agreement."

6.       Section 3.4 of the Employment Agreement is hereby deleted.

7.       Section 3.5 of the Employment Agreement is hereby deleted.

8.       Before,  during and  after the  Employment  Term,  you shall assist the
         Company as  necessary  in  its  defense or  prosecution  of  litigation
         currently  existing or commenced in the future  arising  out of matters
         transacted  while you were  employed  by the  Company  and  you  shall,
         subject to  your  employment  or business  obligations,  make  yourself
         reasonably   available  for  information   requests   and  consultation
         regarding  business  affairs and transactions of the Company  occurring
         or commenced  during  your  employment  by the Company.  No  additional
         compensation   shall  be  payable  to  you  for  any  such  assistance,
         information  or consultation;  provided, however, the Company shall pay
         any  reasonable out of pocket costs to be incurred by you in fulfilling
         your obligations under this Paragraph 8.

9.       In the event of a Change in  Control,  Executive  shall be  entitled to
         receive all payments set forth in Section  2.1, as amended  herein,  of
         the Employment Agreement, in a single lump sum payment within seven (7)
         days of such Change in Control.

10.      In the event the  Company  raises a  significant  amount of  capital in
         connection  with the sale of its  securities or the assumption of debt,
         then the Company, at the Chairman's reasonable  discretion,  may choose
         to pay all payments set forth in Section 2.1, as amended  herein,  in a
         single  lump sum  payment  within  30 days  after the  closing  of such
         transaction.

         In  executing  this letter,  you affirm that (i) you are  competent and
         that  you  understand  and accept the  nature,  terms and scope of this
         letter  and  the  agreements   contained   herein,   (ii)  this  letter
         constitutes   your   valid,   binding   and   enforceable   obligation,
         enforceable in accordance with its  terms, (iii) this letter states the
         entire  agreement  between  you and  the  Company  and that  any  other
         agreements  which may have existed  between you and the Company (except
         the  Employment  Agreement,  as  amended  and as  modified  herein) are
         superseded  by this  letter  and  are no  longer  effective,  (iv)  you
         acknowledge that by signing your  name below you have read,  understand
         and  accept  each of the terms of  this  letter,  and that you have had
         sufficient  opportunity  to review  it, to consult  with an attorney or
         other advisor, and that you are entering into it freely and knowingly.


                                             

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Mr. David Tobin
As of September 30, 1998
Page 3



         If this letter  accurately sets forth our  understanding  and agreement
with respect to amending the  Employment  Agreement  and other matters set forth
herein,  please  indicate by signing in the space  provided  below and returning
this letter agreement to me.


                                Very truly yours,


                                Global Telecommunication Solutions, Inc.


                                   /s/ Randy Cherkas
                                By:______________________________
                                     Randy Cherkas 
                                     President



Accepted and agreed to this 30th day of September, 1998:


/s/ David S. Tobin
---------------------------
David S. Tobin


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