Definitions for "H.221"
Industry standard protocol for multiplexing conferencing audio, video, and data (equivalent to Px64
An early teleconferencing method for combining the bandwidth of two 56kbit calls which allows compatibility between 2 Switch 56 and 2 B channel ISDN calls. Used in CCS Musicam codecs and compatible units from other manufacturers.
Edit / A CCITT standard describing a method of inverse multiplexing for videoconferencing terminals, to be used with Px64 videoconferencing. See Also: H.323