Why is my mute permanently on during calls?

[AC Question]

My mute is permanently on during calls

Last night I tried to make calls and my microphone was muted and when I press the unmute symbol nothing happens, it remains muted with the muted symbol showing . The microphone is working for all the other apps.

 

[B. Diddy]

Re: My mute is permanently on during calls

Welcome to Android Central! Which phone? Does speakerphone work?