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From: telecom@ucbvax.UUCP
Newsgroups: mod.telecom
Subject: Telecommunications History & Trivia
Message-ID: <8602020347.AA26789@ucbvax.berkeley.edu>
Date: Fri, 31-Jan-86 15:25:02 EST
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Posted: Fri Jan 31 15:25:02 1986
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The BTL classes use the Ear and Mouth designations to help you remember which
is which.  Frankly I like the Ear & Mouth story better, but I ran across this:

"Basic Telephone Switching Systems", second edition, David Tally, 
Hayden Publishing, p.41 

`The E and M system received its name from historical designations on 
old circuit drawings.  The E referred to the middle "e" in received 
and the M from the "m" in transmit.'

tim born
...ihnp4!ihlpg!timborn