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Re: [] CID verification

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  • From: Christian Schlatter <>
  • To:
  • Subject: Re: [] CID verification
  • Date: Thu, 20 Jul 2006 17:03:49 -0400

Duane wrote:

Candace asked about peer to peer solutions on verification, that would relate back to my comment on using and SPF records to do on a per phone number verification similar to John's verification on servers.

The benefit in using in this capacity is we already do verification on phone numbers for other reasons.

Sounds interesting but I don't really get how that would work. Would that also work with alphanumeric SIP URIs or is that limited to E.164 numbers? Would that require that an endpoint includes its E.164 in the SIP From: header?


This wouldn't be mutually exclusive to John's proposal and offers an additional level of verification into the mix, and as with email filter there is no golden bullet it's a case of layering security and this is just another option available.

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