V.23
<protocol, standard> An ITU-T modem protocol which allowed half-duplex
(unidirectional) data transmission at 1200 bits per second with a 75 bps back
channel and fall back to 600/75 bps. This was the main standard used for British
Telecom's Prestel service.
(2004-07-26)
Nearby terms:
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V.25 bis
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