PROBLEM: Muffled sound MOTOROLA MILESTONE V 2.0,2.01,2.1 How do turn off CrystalTalk ?? I have a general audio problem from dynamic echo canceller ( CrystalTalk ) dampens the sound of my microphone. ( Muffled sound ) In another forum, I read that covering the rear guard, could resolve the problem. Should be possible to switch off CrystalTalk, but this is not possible. Proof of this, is that devices using bluetooth the sound is perfect.