Hello,
We wanted to activate the sidetone function and discovered that AT+QAUDMOD must be set to 1 (headset mode) to activate it. We then tried different volume levels for the sidetone function and found that the voice quality for the recipient deteriorates the higher the sidetone volume is. We tried different settings for echo cancellation and noise suppression but we couldn’t find a pleasing solution. When QAUDMOD is set to 3 (turn off all audio processing functions), the sound degradation disappears. Do you have any recommendations for us?
Best regards,
Janis