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From: wn9nbt@EE.ECN.PURDUE.EDU.UUCP
Newsgroups: mod.telecom
Subject: (none)
Message-ID: <8701221850.AA04242@ee.ecn.purdue.edu>
Date: Thu, 22-Jan-87 13:50:44 EST
Article-I.D.: ee.8701221850.AA04242
Posted: Thu Jan 22 13:50:44 1987
Date-Received: Wed, 28-Jan-87 06:41:10 EST
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newsgroups: mod.telecom
Subject: Re: Hold circuit
Summary: 
Expires: 
References: <8701210710.AA19514@ucbvax.Berkeley.EDU>
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Reply-To: wn9nbt@pur-ee.UUCP (Dave Chasey)
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Organization: Purdue Engineering Computer Network, West Lafayette, IN
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I bought a "Ma Bell" single line hold box at a Radio Shack close out
6 months or so ago for about $6.00, however it originally cost more.
It plugs into a wall outlet and has a modular plug on it.   To activate
the hold circuit, you go on hook and off again twice in a row and it 
signals you with a beep that it activated.   You can then hang up and
it holds the line until any phone on that line goes off hook, or
a timeout timer drops the line in the event you forget to pick up another
extension.   I don't recall the timer's length, or if it is adjustable,
but the box seems to work quite well.    The reason you have to go on and 
off hook twice is to keep it from interfering with call waiting /etc.  It's 
really handy for running from one phone to another.  I can try to dig up 
the model number and/or some specific information if anyone is interested.

Dave Chasey
pur-ee!wn9nbt
wn9nbt@ee.ecn.purdue.edu