[SIPForum-discussion] Help in P-Header

[mrinal k]

Hello,

 P-Asserted-Identity header field  is used between trusted intermediaries
(proxies) to assert the identity of a user agent that has been
authenticated.

A UA receiving a request from a proxy that it trusts will  typically render
the value in a P-Asserted-Identity header field to the user as a “Verified
Caller ID” as opposed to a From header value which is unverified.

A proxy receiving a P-Asserted-Identity from another proxy that it does not
trust will remove the header field.

Thanks
MrinalK
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