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The Telecom Digest for May 2, 2010
Volume 29 : Issue 121 : "text" Format

Messages in this Issue:
 Re: On-screen Caller ID with Comcast VOIP?                                (David Lesher)
 Re: On-screen Caller ID with Comcast VOIP?                              (Adam H. Kerman)
 Re: On-screen Caller ID with Comcast VOIP?                              (Barry Margolin)
 Re: India government bans all Chinese telecom gear                       (David Clayton)
 Re: India government bans all Chinese telecom gear                     (Garrett Wollman)
 Re: IEEE article on GSM interference affecting GPS landing systems           (Sam Spade)
 Re: IEEE article on GSM interference affecting GPS landing systems       (David Clayton)
 Re: IEEE article on GSM interference affecting GPS landing systems           (Sam Spade)
 Re: IEEE article on GSM interference affecting GPS landing systems              (Steven)


====== 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: Fri, 30 Apr 2010 23:17:15 +0000 (UTC) From: David Lesher <wb8foz@panix.com> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: On-screen Caller ID with Comcast VOIP? Message-ID: <hrfodr$o4j$2@reader1.panix.com> AES <siegman@stanford.edu> writes: >Just noticed on my latest Comcast bill (Silicon Valley/Palo Alto area) a >blurb for a Comcast app that will supposedly display Caller ID in an >on-screen pop-up window any time a VOIP call comes in. >* Does it work for Macs or only Windows systems? >* Does it work well? >* Any likely interference with other apps, or other glitches? It pops up on the TeeVee screen; not the computer.... -- A host is a host from coast to coast.................wb8foz@nrk.com & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
Date: Sat, 1 May 2010 18:26:28 +0000 (UTC) From: "Adam H. Kerman" <ahk@chinet.com> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: On-screen Caller ID with Comcast VOIP? Message-ID: <hrhrok$6qf$1@news.albasani.net> David Lesher <wb8foz@panix.com> wrote: >AES <siegman@stanford.edu> writes: >>Just noticed on my latest Comcast bill (Silicon Valley/Palo Alto area) a >>blurb for a Comcast app that will supposedly display Caller ID in an >>on-screen pop-up window any time a VOIP call comes in. >>* Does it work for Macs or only Windows systems? >>* Does it work well? >>* Any likely interference with other apps, or other glitches? >It pops up on the TeeVee screen; not the computer.... If the application is downloaded to the desktop computer, and started, the Caller ID window does indeed pop up on a Windows desktop. I have no experience using it on a Mac.
Date: Fri, 30 Apr 2010 23:23:52 -0400 From: Barry Margolin <barmar@alum.mit.edu> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: On-screen Caller ID with Comcast VOIP? Message-ID: <barmar-3660FB.23235230042010@62-183-169-81.bb.dnainternet.fi> In article <siegman-7432AE.13201530042010@bmedcfsc-srv02.tufts.ad.tufts.edu>, AES <siegman@stanford.edu> wrote: > Just noticed on my latest Comcast bill (Silicon Valley/Palo Alto area) a > blurb for a Comcast app that will supposedly display Caller ID in an > on-screen pop-up window any time a VOIP call comes in. It's called Universal Caller ID. It can also display on your TV. > > Sounds like a clever and potentially useful gimmick -- but before I > download and try it, I'd appreciate any feedback from existing users who > can say: > > * Does it work for Macs or only Windows systems? Both. > > * Does it work well? You might want to ask in the Universal Caller ID forum at forums.comcast.net. > > * Any likely interference with other apps, or other glitches? > > Thanks much for any advice. I don't have Comcast Digital Voice service, but a quick google for "comcast universal caller id" got me to this page: http://www.comcast.net/callerid/ >From there you can follow links to get the hardware and OS requirements. -- Barry Margolin, barmar@alum.mit.edu Arlington, MA *** PLEASE post questions in newsgroups, not directly to me *** *** PLEASE don't copy me on replies, I'll read them in the group ***
Date: Sat, 01 May 2010 11:08:27 +1000 From: David Clayton <dcstar@myrealbox.com> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: India government bans all Chinese telecom gear Message-ID: <pan.2010.05.01.01.08.24.151123@myrealbox.com> On Thu, 29 Apr 2010 20:14:43 -0700, Thad Floryan wrote: > http://www.thehindubusinessline.com/2010/04/29/stories/2010042952880100.htm > > Thomas K. Thomas > New Delhi, April 28 > > The Government has officially told mobile operators not to import any > equipment manufactured by Chinese vendors, including Huawei and ZTE. ........ > The order was sent out by the DoT on Tuesday to some of the operators that > were planning to buy equipment from Chinese manufacturers. The ban order > follows concerns raised by the Home Ministry that telecom equipment from > some countries could have spyware or malware that gives intelligence > agencies across the border access to telecom networks in India. ........ > The biggest gainers from the move could be European and American vendors > that have been losing market share to aggressive Chinese equipment-makers. One wonders if these governments have has a close look at ALL the equipment provided by other vendors from other countries over the years. What guarantee is there that the Cisco IOS (as an example) does not have various "back-doors" and other disguised monitoring code buried in it for ready access by US intelligence agencies? Unless you have access to the source code any - and that means *any*, like Windows as another example - closed source system could have all sorts of surreptitious stuff built into it just waiting for the day someone wants to activate it. I am quite willing to believe that stuff from China could well have a few surprises included, and I am also quite willing to believe that this is not a new thing. -- Regards, David. David Clayton Melbourne, Victoria, Australia. Knowledge is a measure of how many answers you have, intelligence is a measure of how many questions you have.
Date: Sat, 1 May 2010 17:07:09 +0000 (UTC) From: wollman@bimajority.org (Garrett Wollman) To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: India government bans all Chinese telecom gear Message-ID: <hrhn3t$s0i$1@grapevine.csail.mit.edu> In article <pan.2010.05.01.01.08.24.151123@myrealbox.com>, David Clayton <dcstar@myrealbox.com> wrote: >Unless you have access to the source code any - and that means *any*, >like Windows as another example - closed source system could have all >sorts of surreptitious stuff built into it just waiting for the day >someone wants to activate it. Even if you do have access to the source code, and audit it carefully, that's still the case. I believe the canonical reference here is Ken Thompson's Turing Award lecture, "Reflections on Trusting Trust". -GAWollman -- Garrett A. Wollman | What intellectual phenomenon can be older, or more oft wollman@bimajority.org| repeated, than the story of a large research program Opinions not shared by| that impaled itself upon a false central assumption my employers. | accepted by all practitioners? - S.J. Gould, 1993
Date: Fri, 30 Apr 2010 18:43:44 -0700 From: Sam Spade <sam@coldmail.com> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: IEEE article on GSM interference affecting GPS landing systems Message-ID: <BuudnfMtV_zNGkbWnZ2dnUVZ_tOdnZ2d@giganews.com> Thad Floryan wrote: > L-o-n-g article here (with pictures, graphs, etc.): > > http://spectrum.ieee.org/aerospace/aviation/unsafe-at-any-airspeed/0 > > Quick summary: "Our [IEEE] data and the NASA studies suggest to > us that there is a clear and present danger: cellphones can render > GPS instruments useless for landings." > > I believe the NASA study alluded-to in the article is this one: > > http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20010066904_2001108092.pdf > A slightly less quick and more accurate summary: "Yet our research has found that these items can interrupt the normal operation of key cockpit instruments, especially Global Positioning System (GPS) receivers, which are increasingly vital to safe landings."
Date: Sat, 01 May 2010 11:23:05 +1000 From: David Clayton <dcstar@myrealbox.com> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: IEEE article on GSM interference affecting GPS landing systems Message-ID: <pan.2010.05.01.01.23.02.94491@myrealbox.com> On Thu, 29 Apr 2010 18:15:27 -0700, Thad Floryan wrote: > L-o-n-g article here (with pictures, graphs, etc.): > > http://spectrum.ieee.org/aerospace/aviation/unsafe-at-any-airspeed/0 > > Quick summary: "Our [IEEE] data and the NASA studies suggest to us that > there is a clear and present danger: cellphones can render GPS > instruments useless for landings." ......... So when the terrorists eventually figure out that taking a doctored phone/DVD player/Laptop on board a flight (something designed to blast out interference at the press of a button) is a potentially effective way of bring down an airplane, then perhaps all that stuff at the airports scanning for explosives will be effectively obsolete? As the article says, people won't accept a total ban on electronic devices so how are the authorities going to stop anything like this? -- Regards, David. David Clayton Melbourne, Victoria, Australia. Knowledge is a measure of how many answers you have, intelligence is a measure of how many questions you have.
Date: Sat, 01 May 2010 09:54:51 -0700 From: Sam Spade <sam@coldmail.com> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: IEEE article on GSM interference affecting GPS landing systems Message-ID: <ffednYKnasNFwUHWnZ2dnUVZ_gidnZ2d@giganews.com> David Clayton wrote: > On Thu, 29 Apr 2010 18:15:27 -0700, Thad Floryan wrote: > > >>L-o-n-g article here (with pictures, graphs, etc.): >> >>http://spectrum.ieee.org/aerospace/aviation/unsafe-at-any-airspeed/0 >> >>Quick summary: "Our [IEEE] data and the NASA studies suggest to us that >>there is a clear and present danger: cellphones can render GPS >>instruments useless for landings." > > ......... > > So when the terrorists eventually figure out that taking a doctored > phone/DVD player/Laptop on board a flight (something designed to > blast out interference at the press of a button) is a potentially > effective way of bring down an airplane, then perhaps all that stuff > at the airports scanning for explosives will be effectively > obsolete? > > As the article says, people won't accept a total ban on electronic > devices so how are the authorities going to stop anything like this? It just won't happen. First, most of the instrument approaches made by airliners today are Instrument Landing System (ILS) approaches, which are ground-based and have nothing to do with GPS. Second, where GPS is used the integrity and alerting modes would provide a warning in no uncertain terms to not rely on the GPS as the primary source for navigation. Finally, the RF from a cell phone is highly unlikely to affect the GPS receivers, which are isolated from the cabin. The incidents referred to in the report were extremely isolated and the cause and effect were never determined with certainty. As I recall, the most likely suspect was a laptop in use by a passenger seated directly over the electronics compartment in an aircraft where the electonics compartment extended back past the flight deck to the first class cabin.
Date: Sat, 01 May 2010 15:18:04 -0700 From: Steven <diespammers@killspammers.com> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: IEEE article on GSM interference affecting GPS landing systems Message-ID: <hri9av$ce3$1@news.eternal-september.org> Sam Spade wrote: > David Clayton wrote: > >> On Thu, 29 Apr 2010 18:15:27 -0700, Thad Floryan wrote: >> >> >>> L-o-n-g article here (with pictures, graphs, etc.): >>> >>> http://spectrum.ieee.org/aerospace/aviation/unsafe-at-any-airspeed/0 >>> >>> Quick summary: "Our [IEEE] data and the NASA studies suggest to us that >>> there is a clear and present danger: cellphones can render GPS >>> instruments useless for landings." >> >> ......... >> >> So when the terrorists eventually figure out that taking a doctored >> phone/DVD player/Laptop on board a flight (something designed to >> blast out interference at the press of a button) is a potentially >> effective way of bring down an airplane, then perhaps all that stuff >> at the airports scanning for explosives will be effectively >> obsolete? >> >> As the article says, people won't accept a total ban on electronic >> devices so how are the authorities going to stop anything like this? > > It just won't happen. First, most of the instrument approaches made > by airliners today are Instrument Landing System (ILS) approaches, > which are ground-based and have nothing to do with GPS. > > Second, where GPS is used the integrity and alerting modes would > provide a warning in no uncertain terms to not rely on the GPS as the > primary source for navigation. > > Finally, the RF from a cell phone is highly unlikely to affect the GPS > receivers, which are isolated from the cabin. The incidents referred > to in the report were extremely isolated and the cause and effect were > never determined with certainty. As I recall, the most likely suspect > was a laptop in use by a passenger seated directly over the > electronics compartment in an aircraft where the electonics > compartment extended back past the flight deck to the first class > cabin. > Last year while a friend was driving with me, he got a call on his AT&T phone, right after he answered it my TomTom GPS went nuts. I'm not sure if it was the phone as there were major power transmission lines crosssing the highway, so it could have been those, but in the past I never noticed it. He was on the phone just a short time so the next time he is with me I'll have him make a call and see what happens, my phone is Sprint and I have never had problems like that at all. -- The only good spammer is a dead one!! Have you hunted one down today? (c) 2010 I Kill Spammers, Inc., A Rot in Hell. Co.
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.
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