Just got my TD2 3 weeks ago...I encounter problem that the person I talk to unable to hear my voice. I need to actually talk with the phone mic facing my mouth, then the person can only hear, but still very soft. No problem when using bluetooth headset or handsfree. After several testing, I discovered that this problem occurs only when my signal drop to 2G. When I have strong 3G signal, then it's ok. You guys got this problem? I'm using Celcom with latest ROM update.