4 Architecture and information flows for IM multimedia session
23.2183GPPIM call modelIP Multimedia (IM) session handlingRelease 17Stage 2TS
4.0 Introduction
Subclauses 4.1 and 4.2 show the architecture for handling a basic UE-originating multimedia session and a basic UE-terminating multimedia session. A basic UE-to-UE multimedia session is treated as the concatenation of a UE-originating multimedia session and a UE-terminating multimedia session.
4.1 Architecture for a UE-originating IP multimedia session
This is specified in 3GPP TS 23.228 [3].
4.2 Architecture for a UE-terminating IP multimedia session
This is specified in 3GPP TS 23.228 [3].