Hi there! I'm using version 6.3.31, with mi-4c device. i noticed that the above feature doesn't work. first of all the description for the feature seems to be inaccurate - it says it will "reduce ringer volume for incoming call when phone is raised". either way, i have tried the feature with or without vibration for incoming calls - it does not reduce the ringer volume neither stops the vibration. can you fix this please in the next version?