"Narrowband Visual Telephone Systems and Terminal Equipment" is the summary ITU-T recommendation for standard videoconferencing using ISDN or similar telephone circuits. Based on Discrete Cosine Transform, CCM and motion compensation techniques. It can be a video system's sole compression method or supplementary algorithm, used instead of a proprietary algorithm when two dissimilar codecs have need to interoperate. H.320 includes a number of individual recommendations for coding, framing, signaling and establishing connections. It also includes three audio algorithms, G.721, G.722 and G.728.

Log in or registerto write something here or to contact authors.