Chapter 3 AT Commands for the Modem
Chapter 3 AT Commands for the Modem
The table below reminds the main AT commands required for getting started the
modem:
Descript ion
6
AT Commands
Modem's Response
Comment
PIN Code accepted.
Incorrect PIN Code
(with +CMEE = 1 mode).
PIN already entered
(with +CMEE = 1 mode).
Modem synchronised on
the network.
Synchronization lost,
resynchronization attempt.
Modem not synchronized
on the network, no
synchronization attempt.
+CME ERROR:16
+CME ERROR:3
CREG=<mode> 1
CREG=<mode> 2
，
，
MODEM S
ynchronization
Checking
Description
AT+CREG
？
AT+CPIN=1234
CREG=<mode>, 0
OK
Answer the call.
Communication established.
PIN code not entered
(with +CMEE = 1 mode).
AOC credit exceeded or a
communication is already
stablished.
Communication
established.
ATA
OK
CME ERROR 11
：
CME ERROR 3
：
OK
OK
NO CARRIER
ATD<phone
number>;
(Don't forget
the ;
at the
end for voice
call)
《 》
《
》
ATD112; (Don't
forget the ;
at the end for
voice call)
《 》
《
》
Initiate an
emergency call
Initiate a call
Receiving an
incoming call
Communication
loss
Hang up
ATH
OK
Store the
parameters in
EEPROM
AT&W
The configuration
settings are stored in
EEPROM.
G
SM/GPRS
Modem User's Manual
Содержание TD-8011
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