Videotelephony Teleservice for ISDN
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Videotelephony Teleservice for ISDN The videotelephony teleservice for ISDN is a symmetrical, bi-directional, real-time, audiovisual teleservice in which speech and moving pictures are interchanged by means of one or two B-channels, using 64 kbit/s circuit-mode connections in the ISDN. The picture information transmitted is sufficient for adequate representation of fluid movements of a person displayed […]
