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From: jclark@sdcc6.ucsd.edu (John Clark)
Newsgroups: gnu.misc.discuss,comp.misc,comp.dcom.modems
Subject: Re: hayes lawsuit
Message-ID: <19409@sdcc6.ucsd.edu>
Date: 15 May 91 16:35:33 GMT
References: <1991May13.044909.3617@netdev.comsys.com> <TMB.91May13041549@volterra.ai.mit.edu> <-i5Hsdq3@cs.psu.edu>
Followup-To: gnu.misc.discuss
Organization: University of California, San Diego
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In article <-i5Hsdq3@cs.psu.edu> schwartz@groucho.cs.psu.edu (Scott Schwartz) writes:
+
+tmb@ai.mit.edu (Thomas M. Breuel) writes:
+   If you can think of uses prior to the mid-1980's of timeouts or timing
+   to transmit out-of-band commands or data to a computer or communications


The un*x program 'cu' has the <CR>~ sequence to gain access to the
local program. But I would imagine the specific thing of the 'hayes'
approach is the 'if no keys strokes for 2 seconds and then '+++' is
seen then break'.
-- 

John Clark
jclark@ucsd.edu