Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!accuvax.nwu.edu!nucsrl!telecom-request
From: Dave Levenson <dave%westmark@uunet.uu.net>
Newsgroups: comp.dcom.telecom
Subject: Re: Make Busy Device
Message-ID: <3759@accuvax.nwu.edu>
Date: 11 Feb 90 23:50:38 GMT
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X-Telecom-Digest: Volume 10, Issue 93, message 8 of 8


In article <3708@accuvax.nwu.edu>, RAF@cu.nih.gov (Roger Fajman) writes:

> For various reasons, I occasionally want to make either all or some of
> the lines busy.  Right now, each for each line there is make busy
> switch provided by the telco (C&P of Maryland).  Each switch has a
> circuit of its own going back to the central office, which is fairly
> expensive.

You can make a line busy by taking it off-hook.  The telco will send
you ROH tone, and may get annoyed if you do it a lot, however.  If
you use a switch that connects a resistor of about 600 ohms between
Tip and Ring, it probably won't affect a call in progress (may drop
the audio level a bit).  When the call ends, the line will appear to
remain off-hook, and the CO will just hunt around it.


Dave Levenson			Voice: (201 | 908) 647 0900
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