So I have this bizarre issue with the volume jumping from extremely (almost not possible to hear) low and back to the specified volume on and off when making phone calls.
Mostly when I receive a phone call it starts out with very low volume and then it jumps back up to the volume I've specified and sometimes it doesn't at all.

So the question is if this is a mechanical glitch, that is faulty hardware, or whether it is somehow a software problem.


Has anyone out there had these problems?

Any thoughts ideas what this could be?