DTMF Tone Detection Issue on EC21 Module

[wireless]

Hello

I activated AT+QTONEDET=1 on the EC21 module and received a call, but when the connected phone sent DTMF tones during the call, I didn’t see the detected tones on my terminal. I’m wondering if there might be an issue with the URC settings. If there are any additional settings or references I should consider, could you please let me know?
Thank you

[lyman-Q]

Hi @wireless
You can check whether DTMF report URC is enabled, and check whether URCPORT is set correctly.