Tech-invite  3GPPspace  IETFspace
SIP ↠  Examples  Grammars  Presence ⇾  Main  Services  Transaction  Dialog  IMS 
TS 24.228 – §7.2.3 – §7.3.5 – §7.4.5   List   Prev   None
Top   Up   Prev   Next
IMS S5 signalling flow - Session Initiation: Mobile origination and termination in home network, but terminating UE roaming and busy - IMS S5-1f. SIP INVITE request (UE1 to UE2): from P-CSCF2 to UE2
  • Via: The P-CSCF adds the port number negotiated during the security agreement and the comp=sigcomp parameter to its Via header.
  • Record-Route: The P-CSCF adds the port number negotiated during the security agreement and the comp=sigcomp parameter to its own URI.
  • P-Media-Authorization: A P-CSCF generated authorization token. This particular example shows a Policy-Element generated by "pdf1.home1.net" with credentials "31S14621".