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Path: utzoo!mnetor!seismo!gatech!gitpyr!duke
From: duke@gitpyr.gatech.EDU (Roy Brabson)
Newsgroups: comp.dcom.modems
Subject: Re: Hayes 1200 and Busy Signal Detection
Message-ID: <3529@gitpyr.gatech.EDU>
Date: Sun, 3-May-87 21:20:55 EDT
Article-I.D.: gitpyr.3529
Posted: Sun May  3 21:20:55 1987
Date-Received: Mon, 4-May-87 01:38:30 EDT
References: <3521@gitpyr.gatech.EDU> <2986@well.UUCP>
Organization: Georgia Institute of Technology
Lines: 16
Keywords: Busy signal detection
Summary: Hayes 1200 and Busy Signal Detection

In article <2986@well.UUCP>, rab@well.UUCP (Bob Bickford) writes:
> 
>    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' ??
> 

No, mine is simply a Smartmodem 1200.  In the user's guide, pages 3-4 through
3-6 describe the various commands (X1 - X4) which can be included in the
modem initialization string and their effects.  I guess Hayes must have
added these features after the ones you were using were purchased.