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Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!bu-cs!mirror!ima!esegue!johnl
From: johnl@esegue.segue.boston.ma.us (John R. Levine)
Newsgroups: misc.consumers,misc.misc,sci.misc,sci.electronics
Subject: Re: Telephone privacy gadgets
Message-ID: <1989Oct17.050017.573@esegue.segue.boston.ma.us>
Date: 17 Oct 89 05:00:17 GMT
References: <799@mccall.uucp>
Reply-To: johnl@esegue.segue.boston.ma.us (John R. Levine)
Followup-To: misc.misc
Organization: Segue Software, Cambridge MA
Lines: 13

In article <799@mccall.uucp> tp@mccall.uucp (Terry Poot) writes:
>There are gadgets one can put on a telephone that purport to tell you if
>the conversation is being recorded. Does anyone know if they work?

Of course not.  I suppose they might be able to notice if someone hangs
another phone on the line and picks it up and listens, but there are lots
of ways to tap a phone that are not electrically detectable.  For starters,
the person at the other end might put the microphone of a recorder next
to the earpiece.
-- 
John R. Levine, Segue Software, POB 349, Cambridge MA 02238, +1 617 864 9650
johnl@esegue.segue.boston.ma.us, {ima|lotus|spdcc}!esegue!johnl
Massachusetts has over 100,000 unlicensed drivers.  -The Globe