11 IP multimedia session handling with an OSA-Service Capability Server

23.2183GPPIM call modelIP Multimedia (IM) session handlingRelease 17Stage 2TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

This subclause describes the functional architecture needed to support interactions with the S-CSCF and the Transit Function in the IP Multimedia Subsystem and the OSA-SCS. The OSA-Service Capability Server is a SIP Application Server which interfaces SIP to the OSA framework. The generic SIP Application Server behaviour of the OSC-SCS is specified in clause 9 of the present document.

The detailed OSA-SCS procedures for IMS Application Server are specified in 3GPP TR 29.998 [7].