The Telecom Digest for November 11, 2010
Volume 29 : Issue 304 : "text" Format
Messages in this Issue:
====== 28 years of TELECOM Digest -- Founded August 21, 1981 ======
Telecom and VOIP (Voice over Internet Protocol) Digest for the
Internet. All contents here are copyrighted by Patrick Townson and
the individual writers/correspondents. Articles may be used in other
journals or newsgroups, provided the writer's name and the Digest are
included in the fair use quote. By using -any name or email address-
included herein for -any- reason other than responding to an article
herein, you agree to pay a hundred dollars to the recipients of the
email.
===========================
Addresses herein are not to be added to any mailing list, nor to be
sold or given away without explicit written consent. Chain letters,
viruses, porn, spam, and miscellaneous junk are definitely unwelcome.
We must fight spam for the same reason we fight crime: not because we
are naive enough to believe that we will ever stamp it out, but because
we do not want the kind of world that results when no one stands
against crime. Geoffrey Welsh
===========================
See the bottom of this issue for subscription and archive details
and the name of our lawyer, and other stuff of interest.
Date: Wed, 10 Nov 2010 00:48:09 +0000 (UTC)
From: danny burstein <dannyb@panix.com>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: early CATV, was: Bell System Technical Journal, 1922-1983
Message-ID: <ibcq49$3bb$1@reader1.panix.com>
In <4CD8E573.6060408@annsgarden.com> Neal McLain <nmclain@annsgarden.com> writes:
>Now here's my trivia question: how many channels did the first cable TV
>system carry?
The first "cable tv system", or the first "community antenna tv system"?
And are you referring to the US, or including the rest of the world?
--
_____________________________________________________
Knowledge may be power, but communications is the key
dannyb@panix.com
[to foil spammers, my address has been double rot-13 encoded]
Date: Tue, 9 Nov 2010 21:21:55 -0500
From: danny burstein <dannyb@panix.com>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Texas (TEXAS!) Federal judge rules in favor of cell phone privacy
Message-ID: <Pine.NEB.4.64.1011092118370.4261@panix5.panix.com>
(hat tip to Lauren Weinstein of Privacy Digest)
A federal judge has ruled that subscriber data captured from
cellphone towers is protected by the US Constitution's Fourth
Amendment guarantee against illegal searches and seizures.
The decision is part of a sea change from half a decade worth of
previous rulings, in which police weren't required to obtain search
warrants based on probable cause before accessing the subscriber
information. US Magistrate Judge Stephen Wm Smith of the Southern
District of Texas said recent changes in case law and rapidly
evolving mobile technology required a departure from the outcomes
in that long line of cases.
...
"In 1789 it was inconceivable that every peripatetic step of a
citizen's life could be monitored, recorded, and revealed to the
government," he wrote in a decision that was released late last
month but only noticed in the last few days. "For a cell phone user
born in 1984, however, it is conceivable that every movement of his
adult life can be imperceptibly captured, compiled, and retrieved
from a digital dossier somewhere in a computer cloud. Now as then,
the Fourth Amendment remains our polestar."
------
rest:
http://www.theregister.co.uk/2010/11/05/cellphone_data_protected/
------------
http://www.aclu.org/files/pdfs/freespeech/2010_1029_texas_cellphonetracking_opinion.pdf
_____________________________________________________
Knowledge may be power, but communications is the key
dannyb@panix.com
[to foil spammers, my address has been double rot-13 encoded]
Date: Wed, 10 Nov 2010 09:03:27 -0500
From: Monty Solomon <monty@roscom.com>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Apple & The Dentsu Group Bring iAds to Japan
Message-ID: <p062408cdc9005688d442@[10.0.1.3]>
Apple & The Dentsu Group Bring iAds to Japan
TOKYO and CUPERTINO, California-November 9, 2010-Apple and The Dentsu
Group today announced a partnership to expand Apple's iAd? mobile
advertising network to Japan in early 2011. Dentsu will be
responsible for the selling and creative execution of iAds in Japan,
and Apple will host, target and deliver the iAds to its iPhone and
iPod touch users. iAd was launched in the US in July and has emerged
as a powerful new way for leading brands to reach the tens of
millions of iPhone and iPod touch users, while providing a
significant new revenue stream for developers.
...
http://www.apple.com/pr/library/2010/11/09iads.html
Date: 10 Nov 2010 05:15:22 -0000
From: John Levine <johnl@iecc.com>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Re: MSNBC on text message spam
Message-ID: <20101110051522.98246.qmail@joyce.lan>
>IMNO, any kind of unsoliciting texting to cell phones ought to be
>illegal
It is, although the case law is sparse. The most notable case is
one filed and won by Rodney Joffe under the TCPA.
R's,
John
Date: Tue, 09 Nov 2010 20:12:23 -0600
From: gordonb.zmmut@burditt.org (Gordon Burditt)
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Re: Bell System Technical Journal, 1922-1983
Message-ID: <5bSdnQOxLdMaYkTRnZ2dnUVZ_judnZ2d@posted.internetamerica>
>Yes, we've seen this before, but I couldn't resist the chance to play
>"Ultimate Telecom Trivia"!
>
>Here's the question: why does a T1 line have 24 channels?
Does it have anything to do with the number of pairs on a 66 block?
(24 pair for voice/data channels, one for timing, etc.).
I'm not sure why I remember this.
Gordon L. Burditt
***** Moderator's Note *****
Probably not: 66 blocks are for 25-pair cable, of course, but
T-Carrier banks were always wired to CO frames, with at least 3 pairs
per channel (TR, T1R1, E&M).
Bill Horne
Moderator
Date: Tue, 09 Nov 2010 21:16:35 -0800
From: Richard <rng@richbonnie.com>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Re: Bell System Technical Journal, 1922-1983
Message-ID: <v6akd6pcn12bsaafv6j87vaqaij0mjlrig@4ax.com>
>***** Moderator's Note *****
>
>Yes, we've seen this before, but I couldn't resist the chance to play
>"Ultimate Telecom Trivia"!
>
>Here's the question: why does a T1 line have 24 channels?
>
>Bill Horne
>Moderator
First, they used a multiple of 12 channels, because it had to
interface with analog channel banks and the analog equipment used
multiples of 12 channels, called a "channel group."
Second, they could reliably transmit and decode 24 channels between
manholes, but not 36 (too many errors due to transmission distortion).
Another point of trivia: At one time, they had digital switching of
analog carrier channels: Transmission between cities was analog, but
the switches were digital.
Dick
***** Moderator's Note *****
Although T-Carrier banks had to interface with Analog banks, the
connections were always at "baseband", i.e., 300-4,000Hz connections
on pair wire. The Analog banks could never interoperate with T-Carrier
banks on the "high speed" side of the banks: a "T-1" 1.544 Mbps
circuit can't feed an analog carrier system. Apples and Oranges,
really.
Bill Horne
Moderator
Date: Tue, 09 Nov 2010 20:46:35 -0800
From: Richard <rng@richbonnie.com>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Re: Camouflaged cellphone tower plans for Cupertino CA
Message-ID: <6q8kd694mhqpckdobrbavorn64ji8f967m@4ax.com>
On Tue, 9 Nov 2010 20:17:13 +0000 (UTC),
moroney@world.std.spaamtrap.com (Michael Moroney) wrote:
>Sam Spade <sam@coldmail.com> writes:
>
>>Thad Floryan wrote:
>>> Despite the local Cupertino CA residents' fight against the deployment,
>>> this is the first cellphone tower plan I've ever seen and I thought it
>>> interesting to share with the group. Visiting the following URL will
>>> bring up a 7-page, 2.2MB PDF of the proposed AT&T tower facility:
>>>
>>> http://cupertino.granicus.com/MetaViewer.php?view_id=14&clip_id=1037&meta_id=53189
>>>
>
>>This isn't the first of those "trees." They are so phony they stick out
>>like a sore thumb.
>
>There's one of those cell phone "trees" that is so bogus-looking that
>my then-two year old daughter would always point out the "silly tree"
>whenever we drove by it. Personally, I find it uglier than a
>non-disguised tower would be.
>
>I've heard them called "Frankenpines".
>
>***** Moderator's Note *****
>
>Ah, but I bet it's a thing of beauty to any FCC bureaucrat.
>
>Bill Horne
>Moderator
More likely to the local Planning Commision.
I doubt that the FCC cares about what a tower looks like.
Dick
Date: Tue, 09 Nov 2010 21:07:34 -0800
From: Richard <rng@richbonnie.com>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Re: MSNBC on text message spam
Message-ID: <fa9kd615tsi205jvqab2m1nhtcv8cc2sot@4ax.com>
I don't text and I tell my friends not to text to me.
[I'm a Luddite who only uses a mobile phone to talk. No texting, no
cameras, no web browsing.]
Fortunately I don't get spam texts, except from my mobile-phone
company Tracfone. Once a month or so, Tracfone sends an advertisement
via text.
When I buy additional months service and/or airtime minutes, Tracfone
sends a text message to my phone to update the expiration date and
minutes automatically. That's cetainly more convenient that when I
first started with Tracfone: I would visit their website, or call
their toll-free number, to arrange the update, and then I would have
to enter a zillion digits into the phone.
Dick
TELECOM Digest is an electronic journal devoted mostly to telecom-
munications topics. It is circulated anywhere there is email, in
addition to Usenet, where it appears as the moderated newsgroup
'comp.dcom.telecom'.
TELECOM Digest is a not-for-profit, mostly non-commercial educational
service offered to the Internet by Bill Horne. All the contents
of the Digest are compilation-copyrighted. You may reprint articles in
some other media on an occasional basis, but please attribute my work
and that of the original author.
The Telecom Digest is moderated by Bill Horne.
Contact information: Bill Horne
Telecom Digest
43 Deerfield Road
Sharon MA 02067-2301
781-784-7287
bill at horne dot net
Subscribe: telecom-request@telecom-digest.org?body=subscribe telecom
Unsubscribe: telecom-request@telecom-digest.org?body=unsubscribe telecom
This Digest is the oldest continuing e-journal about telecomm-
unications on the Internet, having been founded in August, 1981 and
published continuously since then. Our archives are available for
your review/research. We believe we are the oldest e-zine/mailing list
on the internet in any category!
URL information: http://telecom-digest.org
Copyright (C) 2009 TELECOM Digest. All rights reserved.
Our attorney is Bill Levant, of Blue Bell, PA.
---------------------------------------------------------------
Finally, the Digest is funded by gifts from generous readers such as
yourself who provide funding in amounts deemed appropriate. Your help
is important and appreciated. A suggested donation of fifty dollars
per year per reader is considered appropriate. See our address above.
Please make at least a single donation to cover the cost of processing
your name to the mailing list.
All opinions expressed herein are deemed to be those of the
author. Any organizations listed are for identification purposes only
and messages should not be considered any official expression by the
organization.
End of The Telecom Digest (8 messages)
|
| |
or 