Why can't I hear anything when someone phones and they can't hear me?

[WPCentral Question]

I can't hear anything when someone phones and they can't hear me

Everything else seams to work ok except the hearing issue on calls, I can make and receive calls ok

 

[Abhijith CD]

Re: I can't hear anything when someone phones and they can't hear me

May I know which phone you are using? Also, Is it a new phone?