29 Years of the Digest ... founded August 21, 1981
The Telecom Digest for March 19, 2011
====== 29 years of The TELECOM Digest -- Founded August 21, 1981 ======
Telecom and VOIP (Voice over Internet Protocol) Digest for the
Internet. All contents here are copyrighted by Bill Horne 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
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: Thu, 17 Mar 2011 16:14:19 -0600 From: email@example.com To: firstname.lastname@example.org. Subject: Re: Annoyance Calls Message-ID: <email@example.com> > On Mar 16, 12:18 pm, Jim Haynes <jhay...@cavern.uark.edu> wrote: > It would've eased things to simply surrender her driver's license back > to the state. However, health care providers required her license to > be presented when she got care, so I still needed it as an official > identification for her. A number of DMVs will issue an ID that is not a driver's license. That might be an alternative. If a person needs an ID but can't be licensed to drive, this is the solution. You might check into that. > P.S. When my mother passed I pulled her voter's registration. None > of the less, for several years afterwards I was aggressively > telephoned by campaigners asking for her to get her to go and vote. And you can bet that she is probably on record as having recently voted with all the voter fraud that is going on. ;-) When my maternal grandmother passed away, my mother had been helping her with her finances. So mother was very surprised when a bunch of bills addressed to my grandmother showed up in the mail. As my mother knew who my grandmother was doing business with, she called each of them and told them that they would have to provide proof of goods or services before she would pay them. She never heard from any of them again and was able to proceed to close out the estate. When my paternal grandfather passed away (Fred, Sr., I am Fred, III), I was the first one back to my parents' house after the funeral. I went into the back of the house. My father (Fred, Jr.) and my aunt came in after me but didn't know I was in the house. A few minutes later, the phone rang and my aunt answered. The operator said, "Fred Atkinson is at a payphone and wants to charge a call to your number". My aunt assumed it was me and said yes. A few minutes later, it happened again and she gave approval again. Then I walked out from the back of the house. My aunt was very surprised and told me what had just happened. The phone rang again and this time I answered it. The operator said, "Fred Atkinson is at a payphone and wants to charge a call to your number". I explained to her that I was Fred, III and I was looking at Fred, Jr., and that we had just buried Fred, Sr. this very morning. The operator said, "Thank you" and hung up. The operator did not call us again. You have to watch out for things like that when people die. As soon as their obituary appears in the paper, look out. There are all kinds of scum out there that will try to take advantage of the deceased. Fred Atkinson
Date: Thu, 17 Mar 2011 21:55:49 -0500 From: Monty Solomon <firstname.lastname@example.org> To: email@example.com. Subject: Google first to patch Flash bug with Chrome update Message-ID: <firstname.lastname@example.org> Google first to patch Flash bug with Chrome update Takes advantage of deal with Adobe to push zero-day fix a week before others get protection By Gregg Keizer March 16, 2011 Computerworld - Google on Tuesday updated Chrome, patching a flaw in the browser's copy of Flash Player. The move let Chrome beat rival browsers to the punch: Users of Internet Explorer (IE), Firefox, Safari and Opera won't receive a Flash update from Adobe until next week. ... http://www.computerworld.com/s/article/9214689/Google_first_to_patch_Flash_bug_with_Chrome_update
Date: Thu, 17 Mar 2011 22:55:32 -0500 From: Monty Solomon <email@example.com> To: firstname.lastname@example.org. Subject: Uncovering spoken phrases in encrypted VoIP conversations Message-ID: <email@example.com> Spot me if you can: Uncovering spoken phrases in encrypted VoIP conversations Charles V. Wright, Lucas Ballard, Scott E. Coull, Fabian Monrose, Gerald M. Masson May 2008 Abstract Despite the rapid adoption of Voice over IP (VoIP), its security implications are not yet fully understood. Since VoIP calls may traverse untrusted networks, packets should be encrypted to ensure confidentiality. However, we show that when the audio is encoded using variable bit rate codecs, the lengths of encrypted VoIP packets can be used to identify the phrases spoken within a call. Our results indicate that a passive observer can identify phrases from a standard speech corpus within encrypted calls with an average accuracy of 50%, and with accuracy greater than 90% for some phrases. Clearly, such an attack calls into question the efficacy of current VoIP encryption standards. In addition, we examine the impact of various features of the underlying audio on our performance and discuss methods for mitigation. ... http://www.cs.jhu.edu/~cwright/oakland08.pdf http://www.cs.unc.edu/~fabian/papers/oakland08.pdf http://www.infsec.cs.uni-saarland.de/teaching/WS08/Seminar/slides/goran.pdf http://www.infsec.cs.uni-saarland.de/teaching/WS08/Seminar/reports/yes-we-can.pdf Yes We Can: Uncovering Spoken Phrases in Encrypted VoIP Conversations Goran Doychev, Dominik Feld, Jonas Eckhardt, Stephan Neumann May 28, 2009 Abstract The growing importance of VoIP telephony over untrusted networks raises the requirements to encrypt VoIP calls. To achieve a good trade-off between audio quality and network trafŪc, Variable Bit Rate (VBR) codecs are widely employed. VBR codecs encode speech data at different bit rates depending on the complexity of the input signal. We implemented a practical side channel attack on VoIP applications using VBR codecs associated with length preserving encryption. ... http://www.infsec.cs.uni-saarland.de/teaching/WS08/Seminar/reports/yes-we-can.pdf Uncovering Spoken Phrases in Encrypted VOIP Conversations Trent Kalisch-Smith, Charles V. Wright, Lucas Ballard Scott E. Coull, Fabian Monrose, Gerald M. Masson http://forum.kalkulators.org/docs/crypto/voip/W9_Uncovering_Spoken_Phrases_in_Encrypted_VOIP_Conversations_Trent_Kailash.pdf
Date: Thu, 17 Mar 2011 23:49:11 -0500 From: Monty Solomon <firstname.lastname@example.org> To: email@example.com. Subject: Fed instructs teachers to Facebook creep students Message-ID: <firstname.lastname@example.org> Fed instructs teachers to Facebook creep students By Neil Munro The Daily Caller 03/16/2011 Education Department officials are threatening school principals with lawsuits if they fail to monitor and curb students' lunchtime chat and evening Facebook time for expressing ideas and words that are deemed by Washington special-interest groups to be harassment of some students. There has only been muted opposition to this far-reaching policy among the professionals and advocates in the education sector, most of whom are heavily reliant on funding and support from top-level education officials. The normally government-averse tech-sector is also playing along, and on Mar. 11, Facebook declared that it was "thrilled" to work with White House officials to foster government oversight of teens' online activities. The only formal opposition has come from the National School Board Association, which declined to be interviewed by The DC. The agency's threats, which are delivered in a so-called "Dear Colleague" letter," have the support of White House officials, including President Barack Obama, who held a Mar. 10 White House meeting to promote the initiative as a federal "anti-bullying" policy. The letter says federal officials have reinterpreted the civil-rights laws that require school principals to curb physical bullying, as well as racist and sexist speech, that take place within school boundaries. Under the new interpretation, principals and their schools are legally liable if they fail to curb "harassment" of students, even if it takes place outside the school, on Facebook or in private conversation among a few youths. ... http://dailycaller.com/2011/03/16/fed-instructs-teachers-to-facebook-creep-students/
Date: 17 Mar 2011 21:53:10 -0000 From: John Levine <email@example.com> To: firstname.lastname@example.org. Subject: Re: Buying prepaid SIM cards in advance Message-ID: <email@example.com> >availability in Europe is very easy and you can even get starter SIM >kits at corner stores. Even at arrival in Frankfurt or other major >airport there may even be a facility in the airport to obtain a SIM. There's an E-Plus store in the Frankfurt airport, in the underground mall near the airport train station: http://www.frankfurt-airport.com/content/frankfurt_airport/en/shop_enjoy0/shops/photo_electronics/e-plus.html R's, John
Date: Fri, 18 Mar 2011 15:43:05 +1100 From: David Clayton <firstname.lastname@example.org> To: email@example.com. Subject: Re: Traveler hit with huge data roaming charges Message-ID: <firstname.lastname@example.org> On Thu, 17 Mar 2011 16:21:24 -0500, John Mayson wrote: > On Thu, Mar 17, 2011 at 9:11 AM, Lisa or Jeff <email@example.com> > wrote: >> The Phila Inqr reported about a traveler who received unexpected $20,000 >> charge for data roaming, and then his efforts to get credit for the >> charges. > > I've heard horror stories from people about this. My experience is the > wireless companies want people to use their phones overseas and really > gloss over the facts or toss out rates in $/kB that mean nothing to the > average consumer. I consider myself knowledgeable about telecom issues, > but was woefully ignorant about using a mobile phone overseas and found my > carrier wasn't the best source of information. And it may not just "overseas", here in Australia some 3G networks only really cover the capital cities and major population areas, but they have roaming agreements with other carriers that do cover other areas - but at a cost! People have gone to an out of the way holiday destination, seen that they have data coverage and assumed that is their carrier and therefore covered by their plan - and returned to a nasty surprise when the bill arrives. -- 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.
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|
43 Deerfield Road
Sharon MA 02067-2301
bill at horne dot net
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.