AT+CHFA – Swap audio channels

AT Command

Description

AT+CHFA command is used to swap audio channels.

Support

Simcom Module Tutorial

Examples

//Swap audio command support
AT+CHFA=?

+CHFA: (0 = NORMAL_AUDIO, 2 = HANDFREE_AUDIO)

//Current configuration is normal audio
AT+CHFA?

+CHFA: 0

//Set to handsfree audio
AT+CHFA=2

OK
//Set to normal audio
AT+CHFA=0

Keywords

AT+CHFA syntax, examples, parameters, error, input, response.

With Online AT Command Tester tool, you can test this feature.

With Online AT Command Tester tool, you can also get device diagnostic information easily,