Hello, my name is***** to Justanswer! Give me just a few minutes to look up some specifics, I'm working on this now.
Do you still need help with this?
Ok, does it work better with some apps rather than others? If you shake the phone when it goes out, does it seem to affect the microphone? I'm checking to see if this is software related or hardware related.
Hi there and welcome
Is this happening with all callers or just some in particular?
Can you go to settings, Applications Manager
Then press More then show system apps,
Locate Google Services Framework, press it and press clear data
Then restart the phone and tell me if it then works please