Specifications

SIM900 AT Command Manual
SIM900_AT Command Manual_V1.03 90 12/24/2010
+CRSL: (list of supported <level>s)
OK
If error is related to ME functionality:
+CME ERROR: <err>
AT+CRSL=?
Parameter
See Write Command
Response
+CRSL: <level>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Read Command
AT+CRSL?
Parameter
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CRSL=<leve
l>
Parameter
<level> integer type value (0-4) with manufacturer specific range
(smallest value represents the lowest sound level)
0 LEVEL OFF
1 LEVEL LOW
2 LEVEL MEDIUM
3 LEVEL HIGH
4 LEVEL CRESCENDO
Reference
GSM 07.07 [13]
Note
It is related to the command AT+CLVL.
3.2.52 AT+CLVL Loud Speaker Volume Level
AT+CLVL Loud Speaker Volume Level
Response
+CLVL: (list of supported <level>s)
OK
If error is related to ME functionality:
+CME ERROR: <err>
Test Command
AT+CLVL=?
Parameter
See Write Command
Read Command Response