Video Talks: A comprehensive multimedia conferencing system

A multimedia conferencing system, dubbed AT&T VideoTalks™, has been designed and constructed at AT&T Labs—Research. It allows presentations generated in one conference room to be received in other conference rooms and at desktop computers. Real—time interaction is provided between the conference rooms. Desktop viewers can submit audio or text based questions. Interconnection is accomplished entirely via the corporate IP intranet. Multimedia presentations, including audio, video and graphics, are also digitally recorded for later re—multicasts or on—demand viewing using indexes based on viewgraphs. Network congestion is prevented by restricting the total number of presentations and playbacks. VideoTalks is a prototype system that can be retrofitted to provide for a variety of Internet services, such as remote learning, narrowcasting to niche audiences, video telephony, video conferencing, low cost video—on—demand, etc.

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