[VOIPSEC] Solutions in addressing SPIT (Spam over InternetTelephony)

[ranjith.mukundan at wipro.com]

though not a general evaluation, this I-D http://www.ietf.org/internet-drafts/draft-rosenberg-sipping-spam-01.txt <http://www.ietf.org/internet-drafts/draft-rosenberg-sipping-spam-01.txt>  describes some of the key problems & evalutes potential solutions, in a SIP based voip network.

however, this I-D does not discuss nor analyse mechnisms involving voice printing and use of User modifiable "Reachability Codes" in conjunction with the network (Server/Proxy) assigned Calling Party Number or URIs that vastly improves the probability of the Spam prevention and avoidance to a large extent.

The "Voice Printing and User Modifiable Reachability Code" mechanism for Spam prevenation and avoidance is Presented in the context of an IP (Multi)Media Server in the attached Slide (where content is a little too cryptic) that  I had Presented at the recently concluded SIP Summit in HI. We are working on a paper, along with a few other Orgs, describing this mechanism in detail that you may find useful. Also, I believe, a variant of the  "User Modifiable Reachability Code" mechanism (but without the Voice Printing capability as Presented in the Attached Slide) is being deployed/trialed by a voip service provider (who apparently is also a large telco) in the APAC.

cheers,
-- ranjith..


________________________________

From: Voipsec-bounces at voipsa.org on behalf of Teicher, Mark
Sent: Thu 2/10/2005 6:17 PM
To: Voipsec at voipsa.org
Subject: [VOIPSEC] Solutions in addressing SPIT (Spam over InternetTelephony)



Has anyone on this list evaluated viable solutions that address SPIT
(Spam over Internet Telephony) for their environments ?

/thx
/mht

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