Manual

Smart Machine Smart Decision
SIM800 Series_AT Command Manual_V1.09 178 2015-08-03
OK
Parameter
See Write Command
Response
+CAAS: <mode>
OK
Read Command
AT+CAAS?
Parameter
See Write Command
Response
This parameter setting determines whether or not the audio channel will be
switched automatically to the corresponding channel in case of headset
attaching or detaching.
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CAAS=<mo
de>
Parameter
<mode>
0 Disable automatic audio channel switch function, the headset
HOOK function is disabled;
1 Enable automatic audio channel switch function, the headset
HOOK function is enabled;
2 Disable automatic audio channel switch function, the headset
HOOK function is enabled.
Parameter Saving
Mode
AT&W_SAV E
Max Response
Time
-
Reference Note
For this command, please refer to actual model.
The headset detection is still worked when <mode> is set to 0.
6.2.44 AT+SVR Configure Voice Coding Type for Voice Calls
AT+SVR Configure Voice Coding Type for Voice Calls
Response
+SVR: (list of supported <voice_rate_coding>s)
OK
Test Command
AT+SVR=?
Parameter
See Write Command