MCU's allow for conferencing functions between multiple terminals. They contain two parts: A multipoint controller (MC) that handles the signalling and control messages necessary to setup and manage conferences, and a multipoint processor (MP) that accepts streams from endpoints, replicates them and forwards them to the correct participating endpoints. Latency In contrast to broadcast-type media transmission (RealAudio, for instance), latency in a two-way phone conversation can be very undesirable. 150ms is Brackney dial up services, Brackney, PA up services dial BrackneyBrackney up services, dial Pennsylvania, Brackney dial up services
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