GSM Modules
9
1.7 +++: switch from data mode to command mode
Description
This command is used to switch from data mode to command mode.
++
Example ATD*99#
CONNECT
+++
……
AT
OK
Dial to enter data mode
Switch from data mode to command mode
1.8 ATO: switch from command mode to data mode
Description
This command is used to switch from command mode to data mode.
Format ATO
Example ATD*99#
CONNECT
+++
……
ATO
……
Dial to enter GPRS data connection
Switch from data mode to command mode
Switch from command mode to data mode.
1.9 ATS0: set auto answer
Description
This command is used to control auto answer mode of the module.
Format ATS0=<value>
ATS0=2
OK
Auto answer after ringing twice
ATS0
?
2
OK
Check the current setting
Example
ATS0=0
OK
Cancel auto answer
Parameter
<value>: ringing times
1.10 +CRC: caller ringer type
Description
This command is used to set the answer mode.
Format AT+CRC=num
Example AT+CRC=1
OK
+CRING
:
VOICE
RING prompts incoming call type
Use CRC command to set the caller ringer
type