5D Connection management

24.3713GPPProtocol specificationRelease 16Stage 3TSWeb Real-Time Communications (WebRTC) access to the IP Multimedia (IM) Core Network (CN) subsystem (IMS)

5D.1 General

Connection management is setting up connections, agreeing on data formats, changing data formats during the duration of a call; SIP and Jingle/XMPP belong in this category.

5D.2 UE

A UE supporting WebRTC shall support the WebRTC endpoint functionality as specified in RFC 8825 [30] clause 7 as appropriate, excluding requirements, if any, relating to specific audio and video codecs that are indirectly referenced within the RFC 8825 [30] clause 7.

5D.3 WWSF (WebRTC Web Server Function)

There are no connection management requirements for the WWSF.

NOTE: Any application downloaded from the WWSF that requires connection management is expected to use it in accordance with WebRTC non-browser support of connection management.

5D.4 eP-CSCF (P-CSCF enhanced for WebRTC)

The eP-CSCF and eIMS-AGW in conjunction shall support the WebRTC gateway functionality as specified in RFC 8825 [30] clause 7 excluding requirements, if any, relating to specific audio and video codecs that are indirectly referenced within the RFC 8825 [30] clause 7.

The eP-CSCF and eIMS-AGW in conjunction do not need to support Trickle Ice, Bundle (specified in RFC 8843 [25]) and RTCP multiplexing (specified in RFC 5761 [38]).