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From: mzabeti@phoenix.UUCP
Newsgroups: sci.electronics
Subject: I need a telephone ring detector chip
Message-ID: <228@phoenix.PRINCETON.EDU>
Date: Wed, 15-Apr-87 00:19:56 EST
Article-I.D.: phoenix.228
Posted: Wed Apr 15 00:19:56 1987
Date-Received: Fri, 17-Apr-87 06:30:32 EST
Reply-To: mzabeti@phoenix (Mahboud Zabetian)
Distribution: world
Organization: Princeton U., EE
Lines: 22



If you have seen this posting before, pardon me, I didn't think it made it out
of the local area.

Is there a chip out there that would detect a telephone ring by outputing a
signal?  Like have an output pin that goes high for the duration of each ring
and then goes back to low.  I am sure there must be such a thing since modems
count how many rings they get before answering.

I would be using that chip to hook it up to my phone line, and have a room
light be turned on after the phone has rung 11 times(if nobody answers the
phone).

Thank you for your help.

                        Mahboud
--
Mahboud Zabetian                allegra! --\    zabetia@tiger.princeton.edu
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