Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 164 2012.12.10
6.2.54 AT+CCHGMODE Indicates If the Module Is Powered Off
AT+CCHGMODE Indicates If the Module is Powered Off
Response
+CCHGMOD: <mode>
OK
Read Command
AT+CCHGMOD
E?
Parameter
<mode>
0 the module is powered off.
1 the module is powered on.
Reference Note
z Only supported in SIM900D currently.
6.2.55 AT+CBUZZERRING Use the Buzzer Sound as the Incoming Call Ring
AT+CBUZZERRING Use the Buzzer Sound as the Incoming Call Ring
Response
+CBUZZERRING: <mode>
OK
Read Command
AT+CBUZZER
RING?
Parameter
See Write Command
Response
OK
ERROR
Write Command
AT+CBUZZER
RING=<mode>
Parameter
<mode>
0 disable the function of using buzzer sound as the incoming call ring
1 enable the function of using buzzer sound as the incoming call ring
Reference Note
This buzzer function is depending on the hardware.
6.2.56 AT+CEXTERNTONE Close or Open the Microphone
AT+CEXTERNTONE Close or Open the Microphone