Due to above reading [this comment](https://github.com/sonyxperiadev/bug_tracker/issues/684#issuecomment-809408332) it seems that it won't be possible to fix this for phone calls..
This issue has been fixed for loudspeaker but for the builtin… well could someone confirm this? Cause if this is for sure then I think 10 III is a nogo for a lot of people and could be that it will be pointless to even try to do anything with that phone and waste resources if this is not fixable.