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From: streeter@athena.cs.uga.edu (Tom Streeter)
Newsgroups: comp.dcom.telecom
Subject: Four-Wire Line
Message-ID: <16177@accuvax.nwu.edu>
Date: 17 Jan 91 16:48:51 GMT
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X-Telecom-Digest: Volume 11, Issue 47, Message 9 of 12


There has been lots of talk around the College of Journalism about how
in the world CNN kept a phone line open during the bombing last night.
News reports mention a "four wire line."  Could anyone enlighten me?
We've tried to pump some of our sources at CNN but have not gotten
anything.


Tom Streeter    streeter@athena.cs.uga.edu


[Moderator's Note: CNN is to be commended for *excellent* coverage in
the Gulf -- far better than any of the other networks. They have a
very elaborate setup involving a hardwired link to a transmitter which
in turn beams a signal to the United States. It costs a small fortune:
I've heard estimates of $15,000 - $20,000 per month for the link
itself, and more depending on the amount of usage. Perhaps someone
will post a more technical description of 'four wire' service.   PAT]