User manual
TECHNICAL REFERENCE
8-21
Factory
Switch Setting Function
6 OFF Carrier Detect (CD) Override
OFF Modem sends CD signal when it connects with another modem, drops CD
on disconnect
ON CD always ON (Override)
7 OFF Power-on and ATZ Reset Software Defaults
OFF Loads Y0-Y4 configuration from user-defined nonvolatile memory
(NVRAM)
ON Loads &F0Generic template from read only memory (ROM)
8 ON AT Command Set Recognition
OFF Disables command recognition (dumb mode)
ON Enables recognition (smart mode)