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From: mjg@ecsvax.UUCP
Newsgroups: micro.general,micro.ibm,net.micro,net.micro.pc,net.dcom
Subject: Re: Datec to IBM problems
Message-ID: <2234@ecsvax.UUCP>
Date: Mon, 2-Apr-84 14:42:26 EST
Article-I.D.: ecsvax.2234
Posted: Mon Apr  2 14:42:26 1984
Date-Received: Wed, 4-Apr-84 07:47:58 EST
References: ecsvax.2220
Lines: 13

I have had trouble with Datec 212 modems also. In my case, however the
problem was the reverse i.e. it would work at home and not in the office
because the office uses a PABX which expects a very short loop to the phone
and consequently will not recognize off hook. I found I had to manually take
the phone of hook to draw enough current to trip the pabx before dialling.

A second problem is that the modem will not dial if it does not see the correct
RS232 status line - I think it is DTR - data terminal ready. Check the lights
on the front. When you power up, before dialling you should see  the TR light\
on, if you don't then it won't originate a call.

Mike Gingell
decvax!mcnc!ecsvax!mjg