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Subject: SIP in higher education

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Re: [] CID verification

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  • From: Candace Holman <>
  • To:
  • Subject: Re: [] CID verification
  • Date: Thu, 20 Jul 2006 17:22:01 -0400

Duane wrote:
Christian Schlatter wrote:

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?

Most people still send numeric only CID, for the most part people still need to integrate with the existing PSTN infrastructure. For username/domain situation you really only need to verify the domain portion as per John's suggestion.

The complete solution would also verify the user portion (using P-Asserted-ID or even SIP Identity headers). So, would the solution you use work for SIP URIs?


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