Beginning v1.1.29, the Velox Prime for Android now includes microphone volume gain setting.  


Access the microphone volume gain setting by clicking on the Settings tab (gear icon).


It is a slider from 0-10 (with 0 being default/ no gain and 10 being max gain)
Each increment is 50% greater mic volume.


The user can change their mic volume even the call is in progress, 

Just go to Settings > Mic gain db control and change depends on the users preference.


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