Specifications

SIM900 AT Command Manual
SIM900_AT Command Manual_V1.03 155 12/24/2010
Reference Note
The parameter of AT+SVR is stored in non-volatile memory.
6.2.51 AT+GSMBUSY Reject Incoming Call
AT+GSMBUSY Reject Incoming Call
Response
+GSMBUSY: (0,1)
OK
Test Command
AT+GSMBUSY=
?
Parameter
See Write Command
Response
+GSMBUSY: <mode>
OK
Read Command
AT+GSMBUSY?
Parameter
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <error>
Write Command
AT+GSMBUSY=
<mode>
Parameter
<mode> 0 enable incoming call
1 forbid incoming call
Reference Note
The parameter is not saved if the module power down.