Re: DTMF tones

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Article #5231

#5231

From: Greg Ebert
Date: Tue, 24 Jul 1990 15:53

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In article <44900011@uxa.cso.uiuc.edu> tds32845@uxa.cso.uiuc.edu writes:
>
>	What I mean is, I need the tones corresponding to the numbers, 0-9,
>and the two special characters, * and #.

1=697hz & 1209hz
2=697hz & 1336hz
3=697hz & 1477hz
4=770hz & 1209hz
5=770hz & 1336hz
6=770hz & 1477hz
7=852hz & 1209hz
8=852hz & 1336hz
9=852hz & 1477hz
*=941hz & 1209hz
0=941hz & 1336hz
#=941hz & 1477hz

(From National TP5395 / TP53125 data sheet)

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!zephyr.ens.tek.com!gvgpsa!gold!grege
From: grege@gold.GVG.TEK.COM (Greg Ebert)
Newsgroups: sci.electronics
Subject: Re: DTMF tones
Message-ID: <1202@gold.GVG.TEK.COM>
Date: 24 Jul 90 15:53:21 GMT
References: <44900010@uxa.cso.uiuc.edu> <44900011@uxa.cso.uiuc.edu>
Organization: Grass Valley Group, Grass Valley, CA
Lines: 19

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