US Robotics 002605-00 Installation Manual page 105

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.
G
LOSSARY
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.
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