Bluetooth Profiles. I want to be able to use my n810 as a hands free unit for my phone in my car. if you search my posts you'll see why. I integrated my n810 as my in car media center. I want to be able to make and answer calls from it as well. THis includes making sure that when someone is talking, and it comes over my car speakers, the n810 knows it and doesnt send it back to the person that is talking...... (this might be slightly confusing)