IMS S1-2d. SIP 183 Session Progress response: from I-CSCF2 to S-CSCF1

Tech-invite 3GPPspace IETFspace

SIP ↠ Examples Grammars Presence ⇾ Main Services Transaction Dialog IMS

TS 24.228 – §7.2.2 – §7.3.2 – §7.4.2

IMS S1 signalling flow - Session Initiation: Mobile origination and termination roaming, with different network operators - IMS S1-2d. SIP 183 Session Progress response: from I-CSCF2 to S-CSCF1