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From: dmr@csli.stanford.edu (Daniel M. Rosenberg)
Newsgroups: comp.dcom.telecom
Subject: Re: Tracing Calls Back to College Dorm Phones
Message-ID: <9969@accuvax.nwu.edu>
Date: 19 Jul 90 17:38:46 GMT
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In <9892@accuvax.nwu.edu> ie09@vaxb.acs.unt.edu writes:

>So if the phone company tries to trace a call that originated from,
>say a college dorm, all they would get if the number to that dorms
>switchboard?  I think I have found the source of my annoying calls.

An organization I work for at the University has the periodic need to
trace phone calls through the Stanford DMS-100 switch. The last time
we did it, a call went from Pac Bell land through to Stanford, and it
took forty minutes to trace (after calling 911). Things are supposed
to be set up now so that the trace works almost instantly, through
special lines to the E911 center that have been discussed here before.
(CLID? ANI? Some funky acronym.)

So anyway, for 911 (at least), yes, you can get the number of an
"extension" off of some PBX's.


# Daniel M. Rosenberg //  Stanford CSLI  // Chew my opinions, not Stanford's.
# dmr@csli.stanford.edu // decwrl!csli!dmr // dmr%csli@stanford.bitnet