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Path: utzoo!watmath!clyde!burl!ulysses!bellcore!vortex!lauren
From: lauren@vortex.UUCP (Lauren Weinstein)
Newsgroups: net.crypt
Subject: Re: foiling password crackers
Message-ID: <881@vortex.UUCP>
Date: Fri, 14-Feb-86 04:13:32 EST
Article-I.D.: vortex.881
Posted: Fri Feb 14 04:13:32 1986
Date-Received: Sat, 15-Feb-86 05:17:25 EST
References: <1075@decwrl.DEC.COM>
Organization: Vortex Technology, Los Angeles
Lines: 13

Unlimited calling party hold only exists these days in EXTREMELY
old Step-by-step offices.  All ESS, Crossbar, and most Directorized SXS
exchanges will break the connection after the CALLED party hangs
up, after a timeout interval.  The called party must stay on hook
for a period ranging from 10 seconds to a minute or so, depending on
a variety of equipment specifics, for the line to clear in this
manner.

So only in the crudest old central offices, and then only for
local calls, can the calling party clog up a phone line simply
by refusing to hang up.

--Lauren--