Article View: sci.electronics
Article #19368Re: Need DTMF Decoder/Ringing Detector
From: William C. DenBesten
Date: Thu, 07 Jul 1988 20:55
Date: Thu, 07 Jul 1988 20:55
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From article <5317@super.upenn.edu>, by zielke@eniac.seas.upenn.edu (Stephen Zielke): > 4. Dectecting the DTMF touch tone signals is the main problem. There are > plenty of DTMF encoders that are used in the telephone (accepting > 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? my (uugh) Radio Shack catalog lists oen for $12.95. Its RS part number is 276-1303. It can be found on the top of page 143 of the 1988 catalog. -- William C. DenBesten denbeste@bgsu.edu
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bgsuvax!denbeste From: denbeste@bgsuvax.UUCP (William C. DenBesten) Newsgroups: sci.electronics Subject: Re: Need DTMF Decoder/Ringing Detector Message-ID: <2566@bgsuvax.UUCP> Date: 7 Jul 88 20:55:14 GMT References: <5317@super.upenn.edu> Distribution: na Organization: Bowling Green State University B.G., Oh. Lines: 15