back to TS 24.228
Top   Up   None   Next
IMS S2 signalling flow - Session Initiation: mobile origination and termination in home network - IMS S2-8a. SIP PRACK request (UE1 to UE2): from UE1 to P-CSCF1
  • Request-URI: Takes the value of the Contact header of the received 180 Ringing response.
  • Security-Verify: Contains the security agreement as represented by the received Security-Server header.