Tech-invite   3GPPspecs   Glossaries   IETFRFCs   Groups   SIP   ABNFs   Ti+   Search in Tech-invite

Ti+  for  TS 24.228§6.2
List   None   Next
Top   Up   Prev   Next IMS message
IMS R1 signalling flow - Registration: User not registered - IMS R1-1d. SIP REGISTER request: between I-CSCF1 and HSS
  • Cx-Query, or Diameter UAR: User-Authorization-Request: I-CSCF1 makes a request for information related to the Subscriber registration status by sending the private user identity (""), public user identity ("") and visited domain identifier ("Visited Network Number 1") to the HSS.
  • Cx-Query response, or Diameter UAA: User-Authorization-Answer: The HSS returns S-CSCF required capabilities and I-CSCF1 uses this information to select a suitable S-CSCF.