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Article View: comp.terminals
Article #1489

Re: decoding DTMF (touch tone) signals in computer

#1489
From: Richard Shuford
Date: Wed, 06 Mar 1996 22:22
33 lines
1971 bytes
In article <313776D2.2E24@ix.netcom.com> in "comp.terminals" for some reason,
 "Noral D. Stewart" <noral@ix.netcom.com> writes:
>
> Can someone tell us where the chip that decodes touch tone signals in a 
> desktop computer is normally located?  We are having problems.  Have 
> replaced modem without success.  Both MS Hyperterminal and a phone 
> answering program are failing to get the proper codes from most phones. 

The decoding of DTMF (Touch Tone) signals is in the modem.  Why 
would you think that any other part of the computer is involved?

You don't say what type of exchange/switch "most phones" are connected to.
That probably is the most important factor.  Line quality could also make
a difference.  Or the type of modem you have could respond differently
according to certain setup parameters.

Microsoft's "terminal" programs are typically only minimally useful.
There are many alternatives.

> An E-mail response would be appreciated.  Thank you.

I'm sorry you can't be bothered to read where you posted....

Followups directed to "comp.dcom.modems".

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 ...Richard S. Shuford  | "As vinegar to the teeth and smoke to the eyes,
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Message-ID: <4hl382INNjtk@duncan.cs.utk.edu>
Path: arc1-ca.pugleaf.net!cs.utk.edu!not-for-mail
References: <313776D2.2E24@ix.netcom.com>

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Path: arc1-ca.pugleaf.net!cs.utk.edu!not-for-mail
From: shuford@cs.utk.edu (Richard Shuford)
Newsgroups: comp.terminals,comp.dcom.telecom.tech,comp.dcom.modems
Subject: Re: decoding DTMF (touch tone) signals in computer
Followup-To: comp.dcom.modems
Date: 6 Mar 1996 17:22:58 -0500
Organization: University of Tennessee, Knoxville--Dept. of Computer Science
Distribution: world
Message-ID: <4hl382INNjtk@duncan.cs.utk.edu>
References: <313776D2.2E24@ix.netcom.com>
NNTP-Posting-Host: duncan.cs.utk.edu
Summary: in the modem
Keywords: DTMF, modem