back to TS 24.228
Top   Up   Prev   Next
IMS S2 signalling flow - Session Initiation: mobile origination and termination in home network - IMS S2-2b. SIP 183 Session Progress response: from P-CSCF2 to S-CSCF2
  • Record-Route: P-CSCF2 rewrites the Record-Route header field value to remove the port number used for the security association and the comp=sigcomp parameter from its own URI.
  • P-Asserted-Identity: P-CSCF2 inserts the default SIP URI of the user in the P-Asserted-Identity header field.