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From: prc@erbe.se (Robert Claeson)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: terminal servers w/modems (dial-in/out)
Keywords: terminal server modem bidirectional
Message-ID: <1780@hugo.erbe.se>
Date: 13 Sep 90 19:59:44 GMT
References: <10628@quest.UUCP>
Organization: ERBE DATA AB, Jarfalla, Sweden
Lines: 33

In a recent article ssb@quest.UUCP (Scott S. Bertilson) writes:

>  I've just been trying out the Xyplex terminal servers and was
>pleased to discover that they allow a mode where a given port
>can be used either for dialing in or dialing out - depending
.....

>  Are there any other terminal servers other than Xyplex that
>support bidirectional modem use?

Yes, the Annex series of terminal servers from Xylogics and
Encore Computer has supported bidirectional ports since many
years ago.

>  A related topic is that in order for this to be truly useful,
>"uucico" and "cu" need to be able to make a TCP/IP connection.
>I know that 4.3 allows this, but I'm running SCO UNIX 3.2 and
>Altos version of AT&T SVR3.1.

If you have Streams and/or TLI access to TCP/IP, it is possible.
It's just a matter of setting up the Devices and related files
correctly (provided your system actually use HDB uucp that
the System V Release 3.1 code is delivered with from AT&T).
See the documentation for "BNU" (Basic Networking Utilities).

I recently tried this but can't remeber the details. But it
was easy. Make sure to use the "e" protocol for best performance.

-- 
Robert Claeson                  |Reasonable mailers: rclaeson@erbe.se
ERBE DATA AB                    |      Dumb mailers: rclaeson%erbe.se@sunet.se
                                |  Perverse mailers: rclaeson%erbe.se@encore.com
These opinions reflect my personal views and not those of my employer (ask him).