28 Years of the Digest ... founded August 21, 1981

Classified Ads
TD Extra News

Add this Digest to your personal   or  


The Telecom Digest for October 07, 2010
Volume 29 : Issue 269 : "text" Format

Messages in this Issue:

Re: Help needed differentiating email, texting and SMS (Thad Floryan)
System to Trace Call Paths Across Multiple Networks(Monty Solomon)
Re: A Simple Swipe on a Phone, and You're Paid(David Clayton)
Re: A Simple Swipe on a Phone, and You're Paid(Robert Bonomi)
Iranians discover that finding a needle in a Haystack ain't hard... (danny burstein)

====== 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


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, 06 Oct 2010 00:38:46 -0700 From: Thad Floryan <thad@thadlabs.com> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: Help needed differentiating email, texting and SMS Message-ID: <4CAC2786.90109@thadlabs.com> On 10/5/2010 4:25 PM, tlvp wrote: > On Mon, 04 Oct 2010 18:48:37 -0400, Thad Floryan <thad@thadlabs.com> wrote: > >> ... I know for a fact my phone receives email sent to the >> "cellphone#@txt.att.net" address, but what is this method termed? >> Is it SMS or simply email? ... > > As ever, "that depends" -- does it come through with all characters > that were beyond the first 150 or so truncated away? > > If so, that was SMS. > > Does it come through in its entirety (except perhaps missing some > graphics components)? If so, that was probably either MMS or real > email. Amazing. I just sent a 5-line email to it alternating between "Now is the time ..." and "The quick brown fox ..." (each line is 69 characters long) and all 350 characters arrived albeit split into "pages". I thought there was a limit, perhaps not. Maybe it was my Nokia 6162i that had a limit with its "text messages" (no "SMS" is its manual and no way to test (today)). 'Sfunny, I posted URLs to pictures of all my cellphones since 1992 in a Yahoo photo group earlier today since we were discussing equipment lifetime re: Motorola MicroTAC Lite, Nokia 6162i, RAZR V3: http://thadlabs.com/PIX/Thad_cellphones_1.jpg top views http://thadlabs.com/PIX/Thad_cellphones_2.jpg side views http://thadlabs.com/PIX/Thad_V3_charger+batts.jpg bought last month The Nokia was dual mode TDMA and AMPS and the RAZR V3 is GSM, and my cellphone carrier account is grandfathered all the way from the original Cellular One through Cingular to today's AT&T Mobility. > [...] > My own handsets segregate inbound messages into separate IN-boxes, > one for SMS items, one for MMS items. (They don't "do" email.) > > (MMS = "MultimediaMessageService", SMS = "ShortMessageService".) Interesting. The RAZR V3 manual is poorly written and extremely lacking examples and definitions. Since I only need a PHONE it works fine for me and the fact it can receive email is a plus but I'm not sure it's working with the AlertSCC service since I never received a "test message" from them last year. Perhaps I should ask them to do so for me and for the several friends in Palo Alto I'm helping to assure all is setup correctly. > [...] > In T-Mobile's service, I have yet to come up with any reliable criterion > for determining whether an email addressed to my "cellphone#@tmomail.net" > gets delivered to me as an SMS or an MMS at the handset -- I've received > emails either way, at different times, with neither rhyme nor reason > (nor even T-Mo CS) able to provide any clue as to why :-) . Hah hah! You should try dealing with AT&T Mobility. Though their service works fine for me, their support people (even in the local store) are about as clueless as a rock. Thanks for your reply! Since 2004 I've been assuming my RAZR could only receive up to 140 or so chars via email and now, after testing per your implied suggestion, I now know different. I still don't know if the RAZR can do SMS or not, and what's really odd is that after the email test the "GPRS" icon went away; it appeared for the first time ever about a month ago and I have no idea why, the manual isn't clear about GPRS, and there are no explicit commands on the RAZR to enable/disable GPRS.
Date: Wed, 6 Oct 2010 08:26:09 -0400 From: Monty Solomon <monty@roscom.com> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: System to Trace Call Paths Across Multiple Networks Message-ID: <p0624086fc8d219cb472e@[]> GEORGIA TECH RESEARCHERS DESIGN SYSTEM TO TRACE CALL PATHS ACROSS MULTIPLE NETWORKS Posted October 5, 2010 Atlanta, GA ATLANTA - October 5, 2010 - Phishing scams are making the leap from email to the world's voice systems, and a team of researchers in the Georgia Tech College of Computing has found a way to tag fraudulent calls with a digital "fingerprint" that will help separate legitimate calls from phone scams. Voice phishing (or "vishing") has become much more prevalent with the advent of cellular and voice IP (VoIP) networks, which enable criminals both to route calls through multiple networks to avoid detection and to fake caller ID information. However each network through which a call is routed leaves its own telltale imprint on the call itself, and individual phones have their own unique signatures, as well. Funded in part by the National Science Foundation, the Georgia Tech team created a system called "PinDr0p" that can analyze and assemble those call artifacts to create a fingerprint-the first step in determining "call provenance," a term the researchers coined. The work, described in the paper, "PinDr0p: Using Single-Ended Audio Features to Determine Call Provenance," was presented at the Association for Computing Machinery's Conference on Computers and Communications Security, Oct. 5 in Chicago. ... http://www.gatech.edu/newsroom/release.html?nid=61428
Date: Wed, 06 Oct 2010 15:08:08 +1100 From: David Clayton <dcstar@myrealbox.com> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: A Simple Swipe on a Phone, and You're Paid Message-ID: <pan.2010.> On Tue, 05 Oct 2010 20:05:27 +0000, John Levine wrote: >>In Australia Mastercard are introducing the "Swipe and go" system where >>you just wave your card at a terminal for transactions under under a >>certain amount - no signing, not PIN to enter, just grab your receipt and >>go (TV ads are running now promoting it). > > That's called Paypass. My Mastercard debit card here in the US has it, > but I've never used it. If my credit card had it, I would use it. > The thing with any unauthenticated transaction system is that is assumes the person with the card (token of authority) is the owner of the card - what happens if your card is lost/stolen and someone goes on a spending spree of multiple transactions for potentially days before you realise and get the card blocked? Whether the actual token is an actual card or a phone display may still open up a whole can o' worms if it falls into the wrong hands in this increasingly "trade off security for convenience" path we seem to be on. -- 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: Wed, 06 Oct 2010 17:04:16 -0500 From: bonomi@host122.r-bonomi.com (Robert Bonomi) To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: A Simple Swipe on a Phone, and You're Paid Message-ID: <mLSdnVuqSqj9bzHRnZ2dnUVZ_jKdnZ2d@posted.nuvoxcommunications> In article <s71ka65gloda1smf8hs2tmiqlh1dre533b@4ax.com>, Richard <rng@richbonnie.com> wrote: >On Sun, 3 Oct 2010 11:12:22 EDT, Wes Leatherock <Wesrock@aol.com> >wrote: > >> >>They actually pay the card company 1 to 3% of the amount charged, not >>10-20%. (For American Express it's higher. The largest convenience >>store chain in the Oklahoma City metropolitan area does not accept >>American Express cards for that reason. There is a local supermarket >>chain in the area that doesn't take Amex either, and for the same >>reason.) > >About 30 years ago, I was staying at a mom-and-pop owned motel in >Amarillo. At checkout, I offered the choice of 2 credit cards, Visa >and AmEx. He chose Visa. I asked if it was because their fee was >lower. He answered "Not the main reason. With Visa I get reimbursed >faster. I can take the Visa charge to my local bank today and get >reimbursed, but I mail AmEx charges to New York once a month." > Today, American Express does cost merchants more than most other cards, the difference is around 0.5% -- funds reach the merchant with about the same latency as other cards. It's all electrionic clearing these days. AMEX fees have to be higher, since they make far less money off interest charges than the other cards do. (Amex -really- wants you to pay off the entire outstanding balance each month.)
Date: Wed, 6 Oct 2010 18:52:02 -0400 From: danny burstein <dannyb@panix.com> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Iranians discover that finding a needle in a Haystack ain't hard... Message-ID: <Pine.NEB.4.64.1010061851420.16340@panix5.panix.com> [VOA] What Went Wrong With Haystack? It seemed too good to be true, and perhaps that should have been the first warning. "Haystack" was said to be just the needed tool for Iranian democracy activists to break through governmental firewalls and hide their identity. In the end, it may have put them at risk. How did the promise of Haystack go so wrong? -------- rest (basically that too many people wanted to believe in the Emperor's new clothes, and almost no one checked first...): http://www.voanews.com/english/news/science-technology/What-Went-Wrong-With-Haystack-103708474.html _____________________________________________________ Knowledge may be power, but communications is the key dannyb@panix.com [to foil spammers, my address has been double rot-13 encoded]
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 (5 messages)

Return to Archives ** Older Issues