T.120

T.120 is an ITU-T recommendation that describes a series of communication and application protocols and services that provide support for real-time, multipoint data communications. It is used by products such as Cisco WebEx's MeetingCenter, Microsoft NetMeeting, Nortel CS 2100 and Lotus Sametime to support application sharing, real-time text conferencing and other functions.

The set of "T.120" recommendations includes:

The PCMag encyclopedia of computer terms lists the following additional recommendations:

These are not listed on the official ITU-T website. It is possible that these recommendations have been withdrawn.

T.RES and T.TUD are possibly recommendations that did not make it out of draft stage; the ITU practice is to use the series letter + an alphanumeric code for the recommendation while it is in draft, and a number after publication.

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