Article View: mod.telecom
Article #613Line In Use Indicator
From: kevinb
Date: Wed, 21 Jan 1987 07:04
Date: Wed, 21 Jan 1987 07:04
12 lines
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Is there anybody out there who knows of a simple circuit that can light
up when any extension on a line is in use, preferably phone-powered? This
would be quite useful for those on one line with a modem arrangement on it.
Ideas, anyone?
-Kevin Belles
Kevin J. Belles - UUCP {noscvax,sdcsvax,ihnp4!gould9,cbosgd}
~~~~~ ~~ ~~~~~~ !crash!pnet01!kevinb
- ARPA crash!pnet01!kevinb@{ucsd,nosc}.ARPA
[DAK sells such a beast - "Drew's Brainstorm" - it eats 9V batteries
for breakfast, so get a Lady O'Shack battery elminator too... -Elmo\
Technical Details
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!decvax!ucbvax!kevinb@sdchem.UCSD.EDU@crash.UUCP From: kevinb@sdchem.UCSD.EDU@crash.UUCP Newsgroups: mod.telecom Subject: Line In Use Indicator Message-ID: <8701210704.AA19376@ucbvax.Berkeley.EDU> Date: Wed, 21-Jan-87 02:04:35 EST Article-I.D.: ucbvax.8701210704.AA19376 Posted: Wed Jan 21 02:04:35 1987 Date-Received: Wed, 21-Jan-87 18:51:23 EST Sender: daemon@ucbvax.BERKELEY.EDU Organization: The ARPA Internet Lines: 12 Approved: telecom@xx.lcs.mit.edu