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From: astph!joe@cs.psu.edu (Joe Broniszewski)
Newsgroups: comp.dcom.telecom
Subject: What are Secure Lines?
Message-ID: <15743@accuvax.nwu.edu>
Date: 1 Jan 91 13:02:35 GMT
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X-Telecom-Digest: Volume 11, Issue 2, Message 11 of 11


I read a very interesting book over the holidays titled "The Cookoo's
Egg" by Cliff Stol.  The book detailed a true story about computer
espionage.  In the book, Cliff mentioned what he called a *secure
line*.  When ever he called a government agency that meant business
(ie. FBI, NSA, CIA) they would call him back on one of these secure
lines.  My questions:

1.  Technically speaking what is the difference between a secure line
and a non-secure line?

2.  Are calls routed differently?

3.  Who are the LDC's for such lines?

4.  What role does the BOC play in such a set up?


Joe Broniszewski    Philadelphia Phillies   Systems Department