Hi All, I've installed my VoIP application using the latest PJSIP version from trunk on a Samsung S4 device, but it seems that on this device the microphone has the gain too high and the resulting voice is played distorted at the other end of the conversation. This doesn't happen on other devices like S2 or some other Sony smartphones. So my question is how can I change the microphone gain from within PJSIP. Does anyone can give me some tips how to do it? Thanks in advance. Roberto Fichera.