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Path: utzoo!watmath!clyde!floyd!cmcl2!rocky2!cubsvax!wu1!rf
From: rf@wu1.UUCP
Newsgroups: net.flame
Subject: Re: Long Distance Circuits
Message-ID: <272@wu1.UUCP>
Date: Mon, 26-Mar-84 18:09:12 EST
Article-I.D.: wu1.272
Posted: Mon Mar 26 18:09:12 1984
Date-Received: Wed, 28-Mar-84 01:17:10 EST
References: <844@sdcrdcf.UUCP>
Organization: Western Union Telegraph, Mahwah, NJ
Lines: 16

Joel Lilienkamp writes:

  Whose Brilliant idea was it to make the long distance phone
  circuits the effective equivalence of half-duplex, anyway?!?

If you like, you may disable the various echo suppressors by
sending a tone during call setup.  Echoes will then make all
conversation impossible.  There are various methods of echo
suppression; far and away the best is the most recent, which
cancels the echoes.  Unfortunately, these "echo cancellers" are
a recent development, not installed throughout the telephone
network.

	From the asbestos mailbox of:
decvax!philabs!wu1!rf		Randolph Fritz