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RE: [Sipping-tispan] Requirements 02e

"Bemmel, Jeroen van (Jeroen)" <jbemmel@lucent.com> Fri, 23 September 2005 10:34 UTC

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From: "Bemmel, Jeroen van (Jeroen)" <jbemmel@lucent.com>
To: "'Jesske, R'" <R.Jesske@t-com.net>, pkyzivat@cisco.com, Miguel.An.Garcia@nokia.com
Subject: RE: [Sipping-tispan] Requirements 02e
Date: Fri, 23 Sep 2005 12:33:32 +0200
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> So we want the have the same within SIP. In forward direction 
> we have the From header and the P-Asserted-Identity. But in 
> Backward direction the equivalent to the From header is missing.
> 
> So we need such an identity header for the backward direction 
> setup from the callee.
> 
> Roland

What if the callee would simply add a parameter to the To header? Something like
To: <sip:callee@provider.com>;tag=25425741;identity=user@altprovider.com

Jeroen

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