Article View: sci.electronics
Article #19373Re: Need DTMF Decoder/Ringing Detector
From: David H. Rogoff
Date: Thu, 07 Jul 1988 19:40
Date: Thu, 07 Jul 1988 19:40
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In article <5317@super.upenn.edu> zielke@eniac.seas.upenn.edu (Stephen Zielke) writes:
> signals from a keypad). But the DTMF DECODER, which would be present
> in the central office, seems to be more difficult to find. Anyone know
> where to get one of these chips?
>
Radio Shack sells a chip that does exactly this. I haven't
tried it, but I'd be interested in hearing how well it works.
--
David Rogoff, Rensselaer Polytechnic Institute, Troy NY, 518-276-8536
rogoff@itsgw.rpi.edu userea7p@mts.rpi.edu
David_Rogoff@rpitsmts (bitnet)
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!cornell!batcomputer!itsgw!rogoff From: rogoff@itsgw.RPI.EDU (David H. Rogoff) Newsgroups: sci.electronics Subject: Re: Need DTMF Decoder/Ringing Detector Keywords: Need IC's to detect ringing and decode DTMF touch tone signals. Message-ID: <3043@itsgw.RPI.EDU> Date: 7 Jul 88 19:40:32 GMT References: <5317@super.upenn.edu> Reply-To: rogoff@itsgw.rpi.edu (David H. Rogoff) Distribution: na Organization: RPI Info Tech Services - Troy, NY Lines: 15