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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                   FORM 10-Q/A
                                 Amendment No. 1

(Mark One)

[X] Quarterly Report Pursuant to Section 13 or 15 (d) of the Securities Exchange
Act of 1934 For the quarterly period ended June 30, 1997

[ ] Transition Report Pursuant to Section 13 or 15 (d) of the Securities
Exchange Act of 1934 For the transition period from
                  to                .
------------------  ----------------




Commission file no. 0-24303
                    -------

                   COHERENT COMMUNICATIONS SYSTEMS CORPORATION
             (Exact Name of Registrant as Specified in Its Charter)


           Delaware                                     11-2162982
--------------------------------                        ----------
   (State of Incorporation
     or Other Jurisdiction                  (I.R.S. Employer Identification No.)
of Incorporation of Organization)

 44084 Riverside Parkway, Lansdowne Business Center, Leesburg, VA       22075
-------------------------------------------------------------------  -----------
         (Address of Principal Executive Offices)                     (Zip Code)

Registrant's Telephone Number Including Area Code:               (703) 729-6400
                                                                ----------------


Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports) and (2) has been subject to such filing
requirements for the past 90 days.

                                              Yes   X   No
                                                  ----     -----




Indicate the number of shares outstanding of each of the issuer's classes of
common stock, as of August 8, 1997:


Class                                              Number of Shares Outstanding

Common Stock, Par Value $.01 Per Share              15,272,522 Shares
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                   COHERENT COMMUNICATIONS SYSTEMS CORPORATION


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                           PART II: OTHER INFORMATION

<S>                                                                        <C>
ITEM 6: EXHIBITS AND REPORTS ON FORM 8-K................................    3

SIGNATURES..............................................................    4

EXHIBIT INDEX...........................................................    5

EXHIBIT 10.1 CONTRACT AMENDMENT TO VALUE ADDED RESELLER AGREEMENT.......    6
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                   COHERENT COMMUNICATIONS SYSTEMS CORPORATION


PART II - OTHER INFORMATION


ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K

                  (a)      Exhibits


                  Exhibit 10.1- Contract Amendment to Value Added Reseller
                  Agreement No. H7810/92 dated April 3,1997 between Nokia
                  Telecommunications Oy and the Company*

                  Exhibit 11 - Computation of net income per share (1)
                  (Exhibit 11)

                  Exhibit 27 - Financial Data Schedule (1) (Exhibit 27)


         (b)      Reports on Form 8-K

                  None



No other applicable items.

* Confidential portions of the exhibit have been omitted and filed separately
with the Securities and Exchange Commission pursuant to a request for
confidential treatment.

   (1) Filed as an exhibit to the Company's Quarterly Report on Form 10-Q for
       the quarterly period ended June 30, 1997 and incorporated by reference.


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                   COHERENT COMMUNICATIONS SYSTEMS CORPORATION



                                   SIGNATURES




         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 thereunto duly authorized.



                                        COHERENT COMMUNICATIONS SYSTEMS
                                        CORPORATION




                                        By:/s/ Joan E. Cominski
                                            ------------------------------------
                                                 Joan E. Cominski
                                                 Principal Financial Officer

      Date: August 20, 1997


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                   COHERENT COMMUNICATIONS SYSTEMS CORPORATION


                                  EXHIBIT INDEX


The following is a list of exhibits required by Item 601 of Regulation S-K filed
as part of this Report. Where so indicated by footnote, exhibits which were
previously filed are incorporated by reference. For exhibits incorporated by
reference, the location of the exhibit in the previous filing is indicated in
parentheses.


         Exhibit 10.1- Contract Amendment to Value Added Reseller Agreement No.
         H7810/92 dated April 3, 1997 between Nokia Telecommunications Oy and 
         the Company*

         Exhibit 11 - Computation of net income per share (1) (Exhibit 11)

         Exhibit 27 - Financial Data Schedule (1) (Exhibit 27)




* Confidential portions of the exhibit have been omitted and filed separately
with the Securities and Exchange Commission pursuant to a request for
confidential treatment.

   (1) Filed as an exhibit to the Company's Quarterly Report on Form 10-Q for
       the quarterly period ended June 30, 1997 and incorporated by reference.


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