31 Years of the Digest ... founded August 21, 1981
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The Telecom Digest for December 29, 2012
Volume 31 : Issue 303 : "text" Format
====== 31 years of TELECOM Digest -- Founded August 21, 1981 ======
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Telecom and VOIP (Voice over Internet Protocol) Digest for the
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Date: Fri, 28 Dec 2012 04:46:58 +0000 (UTC)
From: Colin <colin_sutton@ieee.org>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: The End of the Public Phone Network
Message-ID: <kbj882$49j$1@adenine.netfront.net>
The End of the Public Phone Network
More and more businesses and households are trading their traditional
switched telephone service for voice over Internet Protocol, or VoIP,
services. That's led to a paradoxical situation, where a huge number
of phone calls start out as Internet packets and end up as Internet
packets, but have to be switched to, and then from, a voice circuit on
the old-school public switched telephone network. Universal Internet
Protocol would allow telecom companies to meet the same demand with
much less equipment. Seeing the possible financial benefits -
including turning suddenly redundant real estate into cash - AT&T, the
largest phone service provider in the world, called on the
U.S. government to set a final date for the last plain old telephone
call. "Techwise Conversations" host Steven Cherry talks with Daniel
Berninger, founder of the Voice Communication Exchange Committee. This
Washington, D.C.-based telecom advisory group has chosen the date for
the completion of the transition to the Internet Protocol.
http://spectrum.ieee.org/podcast/telecom/internet/the-end-of-the-public-phone-network
--
Colin
--- news://freenews.netfront.net/ - complaints: news@netfront.net ---
Date: Thu, 27 Dec 2012 23:29:14 -0800
From: Thad Floryan <thad@thadlabs.com>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Anatomy of a typical telephone conversation
Message-ID: <50DD4A4A.2080209@thadlabs.com>
AbstruseGoose and XKCD are weekly technical and often humorous
websites. Today's AbstruseGoose entry is a fascinating diagram
of the mechanics and physics of a telephone conversation.
The following PNG is l-o-n-g at 558x5101=719kB and it displays
fine with every browser on every system I have which includes
*BSD, Linux, Solaris, and Windows (WinXP, Vista, Win7):
http://abstrusegoose.com/strips/rube_goldberg.PNG
Note the length of the PNG file: 5101 pixels vertically. Most
good browsers will display a miniature version of that PNG to
fit a browser's screen as if it were a thumbnail. You'll need
to hover the mouse cursor over that "thumbnail" and the cursor
should change to a magnifying glass with this (+) symbol which
means simply to click the "thumbnail" and you'll then see the
full-size PNG image -- works fine with Firefox, IE and Safari.
If your browser doesn't permit magnifying the "thumbnail" then
uninstall that browser and install and use Firefox, IE or Safari.
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