Voice Clarity Problem !!!!

[arpit8070]

Facing a problem....

While talking over the phone why does volume goes so down that one is not able to hear anything....is this a lumia 720 bug or it has something else to do??
plsss help....

 

[stmav]

It's being discussed here. Feel free to join in. http://forums.windowscentral.com/nokia-lumia-720/225237-nokia-lumia-720-voice-quality-issues.html