The first time I got this phone the microphone was broken. I could not hear anyone, but they could hear me just fine. T-mobile sent me another Nokia 6133, and it was working fine. I have had the phone for not even 3 months yet, and the microphone broke again. This time I can hear the other person, but they can't hear anything from me. Please, save your money and don't bother with this phone. It's not worth the hassle.