US Robotics 56K Series, Manual, Page: 58 / 114

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terminal mode
Software mode that allows direct
communication with the modem. This
mode is also known as command mode.
throughput
The amount of actual user data
transmitted per second without the
overhead of
protocol information such
as start/stop bits or frame headers and
trailers. Compare it with characters per
second .
V.8
The ITU-T standard specification that
covers the initial handshaking process.
V.17 fax
An ITU-T standard for making
facsimile connections at 14,400 bps,
12,000 bps, 9600 bps, and 7200 bps.
V.21
An ITU-T standard for modems
operating in asynchronous mode at
speeds up to 300 bps,
full-duplex , on
public switched telephone networks.
V.22
An ITU-T standard for modem
communications at 1200 bps, compatible
with the Bell 212A standard observed in
the U.S. and Canada.