Hi, I use bluephone with motorlora cell phone, and it is working well. But iBook G4 won't pick up voice very well even though I finished calibrated to volume up. I used External microphone, but it didn't work. I need to pick voice in business meeting so that sign operator in video phone can listen people's voice. What kind of microphone do you recommend to pick up every voice in meeting. Or should I buy wireless Aliph Jawbone Noise Shield Bluetooth Headset? I want to put microphone in the center of table during the meeting to pick up every person's voice for sign interpreter. If you give any advice, I deeply appreciate it!