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From: rab@well.UUCP (Bob Bickford)
Newsgroups: comp.dcom.modems
Subject: Re: Hayes 1200 and Busy Signal Detection
Message-ID: <2986@well.UUCP>
Date: Sun, 3-May-87 14:58:48 EDT
Article-I.D.: well.2986
Posted: Sun May  3 14:58:48 1987
Date-Received: Sun, 3-May-87 20:22:27 EDT
References: <3521@gitpyr.gatech.EDU>
Reply-To: rab@well.UUCP (Bob Bickford)
Organization: Whole Earth 'Lectronic Link, Sausalito, CA
Lines: 22
Keywords: Busy signal detection

In a previous article Roy Brabson writes:

+I am assuming all Hayes 1200's support all the features that mine does;
+it is possible that older ones do not support busy signal detection.
+The way I have mine check for this is by placing "X4" in my modem 
+initialization string.  This allows the modem to detect both a dial tone
+and a busy signal.  Like I said, maybe your Hayes doesn't support this,
+but mine does.

   I know for a certain fact that the SmartModem 1200's which we used at
my job last year did NOT have any of these features (busy signal, dial
tone, or remote ring detection) as it was due to the LACK of these
features that we began purchasing the Hayes 2400 units, which DID have
them.  If Hayes has since brought out a 1200 model with these capabilities,
I say it's about time!
   Ours did not have any letters after the name, just plain '1200'.
Does yours by any chance say 'SmartModem 1200A' or 'SmartModem 1200B' ??

-- 
Robert Bickford         {hplabs, ucbvax, lll-lcc, ptsfa}!well!rab
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