Web-interface: http://<IP address>/#/Expert
Login as admin and switch to the above URL.
WARNING - handle this settings with care, you can negative influence the audio quality.
Automatic Echo Cancellation can be deactivated by setting the switch to "NO".
Doing this is changing changes directly in the DSP part of Maxwell. You will explore background noises, which are transmitted.
MIC Level TX
Valid values: 0 - 10
0: lowest volume
10: highest volume
You can increase the sensitivity of the microphone audio path for Handset, Handsfree and Headset.