Pulse Dialing

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Article #21078

#21078

From: kirk.n.trost
Date: Wed, 05 Apr 1989 14:46

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Does anyone have a simple circuit for pulse dialing a telephone
without using a relay (i.e. non-mechanical)?
I want to be able to control the pulsing via a TTL signal from
a microprocessor.


Thanks,

Kirk ...

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uflorida!ukma!tut.cis.ohio-state.edu!osu-cis!att!cbnews!knt
From: knt@cbnews.ATT.COM (kirk.n.trost)
Newsgroups: sci.electronics
Subject: Pulse Dialing
Message-ID: <5417@cbnews.ATT.COM>
Date: 5 Apr 89 14:46:26 GMT
Reply-To: knt@cbnews.ATT.COM (kirk.n.trost)
Distribution: usa
Organization: AT&T Bell Laboratories
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