Table of Contents
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V.23
A CCITT standard for modems operating full-duplex with
asynchronous or synchronous data at 1200 or 600 bps over dial
or leased telephone lines.
V.27 ter
A CCITT fax communications standard for modems operating
half-duplex with synchronous data at 2400 and 4800 bps.
V.29
A CCITT fax communications standard for modems operating
half-duplex with synchronous data at 7200 and 9600 bps.
V.32
A CCITT standard for modems operating full-duplex with
asynchronous or synchronous data at 9600 or 4800 bps over
dial or leased telephone lines.
V.32 bis
A CCITT standard for modems operating full-duplex with
asynchronous or synchronous data over dial or leased
telephone lines at 14,400, 12,000, 9600, 7200, or 4800 bps.
V.42
A CCITT standard for error control protocol.
V.42 bis
A CCITT standard for data compression.
t
VoiceSpan
A modulation invented by AT&T Paradyne that permits
simultaneous high-speed transmission of voice (or any sound)
and data over normal telephone lines.
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