Wanted: Phone-in-use Indicator

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Article #21805

#21805

From: Brian R. Neumann
Date: Mon, 18 Dec 1989 04:49

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Does anyone know of any simple circuit I could build or of any device
that I could by to show when the phone is in use?  A small LED would 
be helpful --  I'm getting tired of the family picking up the phone while 
I'm using the line for the computer.  I haven't seen anything like this 
available.  It sounds simple to me, but that doesn't necessarily mean
it is.  
--
   
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|] |] | |_| |\ |   |\ | |_ | | |\/| |_| |\ | |\ |     Neumann@louie.udel.edu
|] |\ | | | | \|   | \| |_ |_| |  | | | | \| | \|     Neumann@vax1.udel.edu

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Message-ID: <6375@nigel.udel.EDU>

Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!aplcen!haven!udel!neumann

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!aplcen!haven!udel!neumann
From: neumann@udel.edu (Brian R. Neumann)
Newsgroups: sci.electronics
Subject: Wanted: Phone-in-use Indicator
Message-ID: <6375@nigel.udel.EDU>
Date: 18 Dec 89 04:49:31 GMT
Sender: usenet@udel.EDU
Reply-To: neumann@udel.edu (Brian R. Neumann)
Organization: University of Delaware
Lines: 12