title: How to make Android phone as a bluetooth headset?
body: <p>Yes, I know Android has already implemented the Bluetooth Headset
  Profile, but it is in Audio Gateway Role, not in HeadSet Role.</p>
  
  <p>What I want to do is develop an application on Android phone which
  will act as a bluetooth headset, so it can connect to my laptop by
  bluetooth.
  When I try to call somebody, I can use my phone to dial him, and my
  application will forward the voice through bluetooth to my laptop,
  and one other application running on laptop will get the voice data
  and forward them to Skype or GTalk or some VoIP program else.</p>
  
  <p>In other words, how can I implement the Headset Profile in Headset
  Role on Android phone? Thanks in advance!</p>