Related specifications
RFC 3323, A Privacy Mechanism for the Session Initiation Protocol (SIP), available at http://www.ietf.org/
[28] RFC 3325, Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks, available at http://www.ietf.org/
Implementation notes
n the MO direction, when CLIP is on (that is, when CLIR is off), the Privacy header is omitted.
The network might support or add support for the P-Asserted-Identity header. (Section 9.1, RFC 3325.) If the header is present, remote identity is read from this header rather than from the From header.