Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 88 2012.12.10
GSM 07.07 [13]
3.2.46 AT+CFUN Set Phone Functionality
AT+CFUN Set Phone Functionality
Response
+CFUN: (list of supported <fun>s),(list of supported <rst>s)
OK
If error is related to ME functionality:
+CME ERROR: <err>
Test Command
AT+CFUN=?
Parameters
See Write Command
Response
+CFUN: <fun>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+CFUN?
Parameters
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CFUN=<fun
>[,<rst>]
Parameters
<fun> 0 Minimum functionality
1 Full functionality (Default)
4 Disable phone both transmit and receive RF circuits.
<rst> 0 Do not reset the MT before setting it to <fun> power
level
1 Reset the MT before setting it to <fun> power level.
Reference
GSM 07.07 [13]
Note
z Minimum functionality mode (AT+CFUN=0) and RF disabled.
Functionality mode (AT+CFUN=4) cannot be switched to each
other.
z The <fun> power level will be written to flash except minimum
functionality.
z AT+CFUN=1,1 can be used to reset module purposely. Response
string "OK" will be returned after module resets if baud rate is set to
fixed baud rate.
z Module will back to full functionality automatically if