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From: wjm@whuxj.UUCP (MITCHELL)
Newsgroups: net.consumers
Subject: Re:How to stop junk phone calls
Message-ID: <222@whuxj.UUCP>
Date: Mon, 7-May-84 08:52:58 EDT
Article-I.D.: whuxj.222
Posted: Mon May  7 08:52:58 1984
Date-Received: Tue, 8-May-84 00:13:18 EDT
Organization: Bell Labs, Whippany, N.J.
Lines: 11

In re the circuit to turn off junk phone calls - the box is also available
commercially as the "Phone Censor" - I think DAK (among others) sells it.
One caveat, if you're going to use this type of box, your friends need true
tone phones, not the variety with buttons that put out dial pulses.  Contrary
to what earlier articles may have implied, dial pulses may not travel through
the telephone network past your local central office.  (This is why you need
a tone phone to get into MCI or Sprint, bank by phone, etc).
Bill Mitchell
Bell Communications Research, Inc.
Whippany, NJ  (whuxj!wjm)
Disclaimer: These are my personal opinions and not those of my employer.