Session control standards ITU-T H.323
- Multipoint Processors (MP)
- converting audio, video and data streams
- format changes
- multiplexing/demultiplexing
- usually located in MCU together with MC
- Multipoint Control Units (MCU)
- multipoint conferences support
- consists of MC and several MPs
- centralized, decentralized or hybrid multipoint capabilities
- additional operations (e.g. rate matching, lip synchronization)