Subject: [Rucus] SIP Extensions for Blocking VoIP Spam Using PSTN Validation

From: Victor Pascual Avila <[email-masked]>
Date: Mon, 9 Nov 2009 09:19:36 +0100

FYI: http://www.ietf.org/id/draft-rosenberg-dispatch-vipr-sip-antispam-00.txt

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Victor Pascual Ávila