Smart Machine Smart Decision
SIM7500_SIM7600 Series_AT Command Manual_V1.07 2017-12-25
Read Command Responses
AT+ CECM? +CECM: <value>
Write Command Responses
ERROR
Defined values
This default value is not a fixed value. It varies with different versions.
0: disable EC mode
1: EC mode recommended for Handset
2: EC mode recommended for Headset
3: EC mode recommended for HANDSFREE
4: EC mode recommended for Bluetooth (least aggressive)
5: EC mode recommended for Bluetooth (less aggressive)
6: EC mode recommended for Bluetooth
7: EC mode recommended for Speaker least aggressive
8: EC mode recommended for Speaker phone medium
9: EC mode recommended for Speaker phone aggressive
Examples
OK
+CECM: 1
OK
6.44 AT+CPCMFRM Set usb audio sample rate to 16k bit
Description
This command is used to set usb audio sample rate to 16K bit.
NOTE: This command only support for usb audio 8k to 16k switching, but not support for 16k to
IM PIN References
Syntax