Date   : Wed, 09 Mar 1983 1705-:00PST
From   : Bill Rizzi <RIZZI@usc-isib.arpa>
Subject: Rainbow 100 and file transfer

       I am glad to say that I have been able to create a version of
the commercially available Ascom program that runs on the Rainbow 100.
It uses the CPMUG (CP/M User Group ie. Ward Christensen) protocol as
an option and I was successful in transferring files from a Kaypro II 
running modem7 version 96 to the DEC.

       Now the bad news - Ascom does not properly terminate at the end
of file transfer- it left the Kaypro dangling until it timed out.
The same thing happened when I tried to get Ascom to talk
to Whizlink (yet another Christensen protocol implementation) on a
Toshiba system.  Even worse, the Rainbow could not send a file to the
Kaypro due to bad sector # in header messages.  Most people are 
interested in getting things onto the Rainbow, however.

       This brings up the problem of various packages that SAY they use
the Christensen protocol and do for the most part, except for things
like end of file, etc.  It's bad enough that modem7 has so many
versions, but at least they can talk to each other properly.

       I heard from several people who have an 8088 version of modem7
in assembly language, but never received the source.  If I manage
to grab it somewhere, I will attempt to configure it for the Rainbow
and make it available to any interested parties.

       Bill (RIZZI@ISIB)