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Message Digest Volume 28 : Issue 51 : "text" Format Messages in this Issue: Re: TeleTrap from TelTech Systems ====== 27 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, 18 Feb 2009 21:14:04 -0800 (PST) From: Thad Floryan <thad@thadlabs.com> To: redacted@invalid.telecom.csail.mit.edu Subject: Re: TeleTrap from TelTech Systems Message-ID: <d972eabe-5f8b-4f8a-8031-6ac964b92e70@j10g2000prn.googlegroups.com> On Feb 18, 5:02 pm, Dan Lanciani <d...@danlan.com> wrote: > t...@thadlabs.com (Thad Floryan) wrote: > > |A friend emailed me the following article URL: > | > |<http://www.msnbc.msn.com/id/29235628/> > |[...] > |Is that even possible or feasible? > > They probably simply substitute the ANI for the CallerID. There used > to be some carriers that would do this for you but I think they had > regulatory issues. I suppose it's possible that when the CallerID is > present but the presentation blocking feature is set they just unset > it. That would really be asking for trouble I think... I appreciate your thoughts but I'm still puzzled how the TeleTrap service could work. Below is my diagram of call sequence described in the MSNBC article: [Spammer]>--->[ Spam ]>--->[TelTech ]>--->[Victim] Spammer calls Victim with Caller ID blocked or spoofed; ANI is very likely not available [to] the victim since [spammer is using] cell phone service. Victim's instrument forwards (?) the still-unanswered call to TeleTrap which returns "some" equivalent of Caller ID, and Victim can make a decision to answer or not. Per my understanding, ANI is a separate system from Caller ID (and is what's used typically for 911 service and also by some large companies). I don't understand what it is that's handed-off to TeleTrap and what it is that TeleTrap could return that would be displayed as an equivalent to Caller ID on the Victim's phone during the ringing interval (already beyond the normal placement for Caller ID info). There's a lack of technical information at <http://www.trapcall.com/>. :-) ------------------------------ 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 Patrick Townson. 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. 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