Shoutbox

Just bought this phone a couple of days ago. Lately i made my first call with it, to my mom, en she said in the phone 'what the hell is wrong with you'... she couldn't hear me, then i shouted in the phone and then she could. Strange because 'voice clearacy' is checked and the manual explains that she would be able to hear me whisper. I slided the phone sometimes, tried again and then it worked. I also found that the sliding mechanism is beeping and scouring, and it didn't since yesterday... does it scoure with you too? like multiple feathers that rusted somewhat.. pls help