WM_PRJ_M13_UGD_001 - 001
20th July 2004
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5.8 Main AT commands for the modem
The table below reminds the main AT commands required for getting started the
modem.
For other AT commands available or further information about the AT
commands, refer to document [1].
Table 4: Main usual AT commands for the modem
Description
AT commands
Modem’s
response
Comment
OK
PIN Code accepted.
+CME ERROR: 16 Incorrect PIN Code
(with +CMEE = 1 mode).
Enter PIN Code AT+CPIN=xxxx
(xxxx = PIN code)
+CME ERROR: 3
PIN code already entered
(with +CMEE = 1 mode).
+CREG: 0,1
Modem registered on
the network.
+CREG: 0,2
Modem not registered
on the network,
registration attempt.
Network
registration
checking
AT+CREG?
+CREG: 0,0
Modem not registered
on the network, no
registration attempt.
Receiving an
incoming call
ATA
OK
Answer the call.
OK Communication
established.
+CME ERROR: 11 PIN code not entered (with
+CMEE = 1 mode).
Initiate a call
ATD<phone
number>;
(Don’t forget the
« ; » at the end
for « voice » call)
+CME ERROR: 3
AOC credit exceeded or a
communication is already
established.
Initiate an
emergency call
ATD112;
(Don’t forget the
« ; » at the end
for « voice » call)
OK Communication
established.
Communication
loss
NO
CARRIER
Hang up
ATH OK
Store the
parameters in
EEPROM
AT&W OK
The
configuration
settings
are stored in EEPROM.
