scope:

The present document studies the requirements for IP-Multimedia Subsystem (IMS) Convergent Multimedia Conferencing (CMMC) service in IMS. Specifically, the objective of this study item is to:

a) Identify features of IMS multimedia conferencing, and describe potential service requirements for IMS multimedia conferencing.

b) Identify the IMS requirements for multimedia conferencing services:

1) the conference framework

2) data sharing session establishment/termination/management in a conference

3) media control for audio, video and data

4) floor control for audio, video and data

5) conference policy

c) Identify possible routes to standardization by:

1) Adopting existing and emerging standards, e.g. OMA, IETF, W3C.

2) Modifying and enhancing existing and emerging standards.

3) Developing of new standards.