Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!yale!bunker!wtm
From: rbarth@tumtum.cs.umd.edu (Dick Barth)
Newsgroups: misc.handicap
Subject: info request: modem for TDD & ASCII
Message-ID: <12226@bunker.UUCP>
Date: 5 Jun 90 14:13:59 GMT
Sender: wtm@bunker.UUCP
Reply-To: rbarth@tumtum.cs.umd.edu (Dick Barth)
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Index Number: 8653

In Digest 1309,  era@ncar.ucar.edu (Ed Arnold)  writes:

   I need some advice on sources of modems that can be used for both TDD
   calls and 1200/2400 ASCII calls.

   ...

   I think what we really want is a modem that can accept both TDD or
   1200/2400 baud ASCII calls, which translates both ways from TDD to
   ASCII when necessary, so it would look like a regular modem at the
   rs232 jack and could be used with any of the popular communication
   programs on Mac or IBM.  Is there such an animal?
   --

Unfortunately, not to my knowledge. The commercial TDD modems I'm
aware of are described in the file "compare.tty" which can be
downloaded from the HEX BBS, numbers below. To summarize...

The only commercial TDD modems provide TDD and 300 baud ASCII.
There was at one time a unit made by IMS that also handled 1200;
they no longer make it but you may find one secondhand. IMS has
designed a unit that handles TDD plus ASCII up to 2400 but it's not
in production. IMS is looking for a company to produce and
distribute the products; manufacture of consumer computer products
is not their business and they don't want to get into it.

Eventually you may find the product (and if you do, please le me
know).  For the time being, the chances look kind of slim.