US Robotics 002605-00 Manual page 139

nonvolatile memory (NVRAM)
User-programmable random access memory
whose data is retained when power is turned
off. On the Sportster, it includes four stored
phone numbers and the modem settings.
off/on hook
Modem operations that are the equivalent of
manually lifting a phone receiver (taking it off-
hook) and replacing it (going on-hook).
online fall back/fall forward
A feature that allows high-speed, error-control
modems to monitor line quality and fall back to
the next lower speed in a defined range if line
quality diminishes. As line conditions improve,
the modems switch up to the next higher speed.
134
P III: S C: G
ART ECTION
originate mode
The mode used by your modem when initiating
an outgoing call to a destination modem. The
transmit/receive frequencies are the reverse of
the called modem, which is in answer mode.
parity
A simple error-detection method that checks the
validity of a transmitted character. Character
checking has been surpassed by more reliable
and efficient forms of error checking, including
V.42 and MNP 2-4 protocols. Either the
same type of parity must be used by two
communicating computers, or both may omit
parity.
LOSSARY