[mod.telecom] Line In Use Indicator

kevinb@sdchem.UCSD.EDU@crash.UUCP (01/21/87)

   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

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