This Recommendation provides a high-level framework for conference management and control of audiographic and audiovisual terminals and Multipoint Control Units (MCUs). It encompasses Generic Conference Control (GCC) functions such as conference establishment and termination, managing the roster of nodes participating in a conference, managing the roster of Application Protocol Entities and Application Capabilities within a conference, registry services for use by Application Protocol Entities, coordination of conference conductorship, as well as other miscellaneous functions. This Recommendation is defined within the framework of [ITU-T T.120]. Included within this framework are companion [ITU-T T.122] and [ITU-T T.125], which define the multipoint delivery mechanism used in this Recommendation, and [ITU-T T.123], which specifies the Audiovisual Protocol Stacks for each of the communication networks supported.