All of a sudden, I could hear my bluetooth pair with the phone, but when I tried to make or receive a call on it I could hear nothing. I have tried to reset the bluetooth and also turn mute off and on...Ever since then anyone I talk to complains that there is a ton of feedback and they can hear themselves tallk and also me scratching the phone....HELP!!! is the a microphone volume to turn down? I have tried a few things and nothing works plus my bluetooth no longer works....any suggestions are great! PLEASE HELP!!