B.17 Handling of MPS Session

B.15 Handling of a FLUS session

B.16 QoS hint support for data channel media

B.10 Handling of MCPTT priority call

B.12 Notification Access Type Change

B.13 Notification of PLMN Change

B.11 Handling of MCVideo priority call

B.7 Provision of Signalling Flow Information at P-CSCF

B.6 Support for Early Session disposition SDP

B.9 Resource Sharing