t defines a flexible communications infrastructure that enables participants in any teleconference (including an H.32X videoconference) to concurrently view, share and exchange computer files. T.120-based conferences do not rely on services from the H.32X family of recommendations and can just as easily Video Communications: The Whole Picture stand on their own (although the T.120 standard does not address the audio aspect of a conference). Conference participants can use T.120 to share and manipulate information much as if they using a whiteboard in the same room. Sessions can be point-to-point or multipoint. The data exchanged in a T.120 conference can travel between end-points across a variety of network choices. Connections can be established over dissimilar transport services. This allows a single T.120 conference to include consumers connected via POTS, corporate users supported by LANs/WANs, and small office/home office (SOHO) workers linked over ISDN BRI. The conference extends flexibility even further. T.120 conference participants can use virtually any type of desktop hardware and operating system commercially available. Many computer manufacturers now build T.120 support into their operating systems. T.120 is useful for shared whiteboarding and multipoint file transfer within telemedicine, online chat sessions, on-line, gaming, and virtual reality. While H.32x provides a means of graphics transfer (T.84 / JPEG), T.120 supports higher resolutions, pointing, and annotation. T.120 enables audio bridge manufacturers to add graphics to their products in support of a wide range of applications such as training, project management, brainstorming, and engineering. Extended Name Description T.121 Generic Application Common structure for T.120 applications Template T.122 Multipoint Communication Service definition for T.123 networks Service (implemented in T.125) T.123 Audiovisual Protocol Stacks Protocol stacks for terminals and MCUs T.124 Generic Conference Control Conference management (establish, terminate, 