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.

Last updated: 2004-07-26

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Nearby terms: V.21 « V.22 « V.22bis « V.23 » V.24 » V.25 » V.25 bis


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Copyright Denis Howe 1985

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