EXHIBIT 10.17.1

          [LETTERHEAD OF INLINE CONNECTION CORPORATION APPEARS HERE]



CAIS, Inc.                                                      March 4, 1998
1232 22nd St
Washington, DC 20037

Dear Sirs:

Inline Connection Corporation hereby freely and permanently releases CAIS from 
the restrictions relating to the countries of Germany and Austria, that are 
included in the license agreement executed between CAIS and Inline and dated 
November 5, 1996.


Sincerely yours,


/s/ David D. Goodman

David D. Goodman
President, Inline Connection Corp