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Path: utzoo!linus!decvax!tektronix!tekcad!paulp
From: paulp@tekcad.UUCP
Newsgroups: net.general
Subject: Re: querry: desirable phone features. - (nf)
Message-ID: <551@tekcad.UUCP>
Date: Mon, 29-Aug-83 04:27:05 EDT
Article-I.D.: tekcad.551
Posted: Mon Aug 29 04:27:05 1983
Date-Received: Mon, 29-Aug-83 17:15:04 EDT
Sender: ricks@tekcad.UUCP
Organization: Tektronix, Beaverton OR
Lines: 30

#R:hou2b:-9700:tekcad:1800007:000:1191
tekcad!paulp    Aug 28 23:18:00 1983

Actually the idea of sending the calling number as part of the ring
signal (or whatever) to a phone suggests a devious idea:

Bugging a phone could be done much more efficiently.  Even with
voice operated switches, there's a lot of boring material between
the 'useful' portions of a tapped conversation.  If the material
is taped, essential if the operation is a one man show, the
cassette may be exhausted before recording anything of interest.
This is guaranteed to happen in a house with one or more teenagers.
Using a box to recognize a list of numbers of interest could be
a useful filter.

The Soviets do much the same listening to telephone conversations
that go over micro-wave links in places like Washington, San Francisco,
etc.  Over uwave, both the called and calling number are in the header
that precedes the call.  The equipment to select groups and individual
numbers can be built or bought for a reasonable amount of money.

				    Paul Pomes

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