EXHIBIT 3.18
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                           CERTIFICATE OF AMENDMENT
                                      OF
                         CERTIFICATE OF INCORPORATION
                                      OF
                      CALL POINTS ACQUISITION CORPORATION
                                        

     Call Points Acquisition Corporation, a corporation duly organized and
existing under the General Corporation Law of the State of Delaware (the
"Corporation"), does hereby certify that:

     1.  The Certificate of Incorporation of the Corporation is hereby amended
by deleting the text of Article I thereof in its entirety and inserting the
following in lieu thereof:

     The name of this corporation is Call Points, Inc. (the "Corporation").

     2.  The foregoing amendment was duly adopted in accordance with the
provisions of Sections 242 and 228 (by the unanimous written consent of the
stockholders) of the General Corporation Law of the State of Delaware.

     IN WITNESS WHEREOF, the Corporation as caused this Certificate of Amendment
to be executed by its duly authorized officer this 12th day of November, 1997.


                                        CALL POINTS ACQUISITION CORPORATION


                                        By:\s\ Glenn D. Bolduc
                                           -----------------------------------
                                           Name:  Glenn D. Bolduc
                                           Title: President