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From: wb8foz@ncoast.UUCP
Newsgroups: comp.dcom.modems
Subject: Re: What number am I calling from?
Message-ID: <1879@ncoast.UUCP>
Date: Mon, 29-Dec-86 14:48:54 EST
Article-I.D.: ncoast.1879
Posted: Mon Dec 29 14:48:54 1986
Date-Received: Wed, 31-Dec-86 01:36:08 EST
References: <750@sdcc12.ucsd.EDU> <1706@sunybcs.UUCP> <722@cooper.UUCP> <2263@well.UUCP> <1502@kitty.UUCP>
Reply-To: wb8foz@ncoast.UUCP (David Lesher)
Organization: Cleveland Public Access UNIX, Cleveland, OH
Lines: 30

# 	a CO; its primary purpose is to test interoffice trunks, and it has
# 	no usefulness for subscriber loop meqsurements.  Many newer CO's have
# 	a speech energy detector on the CLA which drops the connection if
# 	_other_ than SF tones are sent in loop-around mode; this has been
# 	implemented to stop "unauthorized" people from using the CLA for
# 	talking. 

A bit of historic trivia. Many of the loop-arounds never used to terminate
and thus never started the calling end's billing timer. Thus they were used
by many persons to provide 'free'LD. Needless to say, Ma was not happy to
find that happening. The same was true on dispatch circuits. These were
groups of # for the outside craftpeople to call in on for the next assignment.
They were dropped into the conference with the dispatcher, and they got their
nickle, (oops) dime (oops) quarter (oops) ..... back from the coin slot when
they hung up.
When Esquire hit the streets in the 60's, everything was changed. But one of
my friends hit on an solution. By prearrangement, he called one side of
a local loop and waited. His brother called the other, collect from a
coin slot in a Big 10 dorm (not his). "Of course, I will accept the charges"
I always wondered which BOC got stuck.
-- 

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