US Robotics 56K Series Manual page 73

Yn Selects power-on/reset
default configuration
Y0 Use profile 0 setting in
NVRAM
Y1 Default is profile 1
setting in NVRAM
Y2 Use factory
configuration 0
Y3 Use factory
configuration 1
Y4 Use factory
configuration 2
Z Resets modem
Z0 Resets modem to
NVRAM profile
selected by Y command
Z1 Resets modem to
NVRAM profile 0
Z2 Resets modem to
NVRAM profile 1
Z3 Resets modem to
factory default profile 0
(&F0)
Z4 Resets modem to
factory default profile 1
(&F1)
Z5 Resets modem to
factory default profile 2
(&F2)
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