AT Command

Description

AT+ECHO AT command is used to suppress echo for handset and handsfree audio channels.


Support
Simcom Module Tutorial

Examples

//Echo cancellation command support
AT+ECHO=?

+ECHO: MIC:(0,2),ES:(0-8),SES:(0-6),MODE:(0,1)

OK

//set echo suppression for main audio channel
AT+ECHO=0,7

OK

KeywordsAT+ECHO 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,