US Robotics 002605-00 Manual page 162

Factory
Switch Setting Function
6 OFF
7 OFF
8 ON
P III: S
ART ECTION
Carrier Detect (CD) Override
OFF Modem sends CD signal when it connects with another modem, drops
CD on disconnect
ON CD always ON (Override)
Power-on and ATZ Reset Software Defaults
OFF Loads Y or Y1 configuration from user-defined nonvolatile memory
(NVRAM)
ON Loads &F0 Generic template from read only memory (ROM)
AT Command Set Recognition
OFF Disables command recognition (Dumb Mode)
ON Enables recognition (Smart mode)
D: T Q
ECHNICAL UICK
R
EFERENCE
157