A teleconferencing system with capability to store incoming multiple medium messages for later retrieval and playback is disclosed. The system includes a communications multiplexer which, in normal mode, receives the incoming message and routes the message to various output functions, including video,...http://www.google.fr/patents/US6181784?utm_source=gb-gplus-shareBrevet US6181784 - Computer controlled video multiplexer for video conferencing and message systems
Computer controlled video multiplexer for video conferencing and message systems