FreeBSD as a BT headset client/server

[Andrew Pantyukhin]

Entertaining my bad habit of posting to mailing lists before
doing enough of googling, here are my questions:

- can a bluetooth headset be used by a FreeBSD box as a (crappy)
  soundcard with a hardwired headphone and a microphone?
- can a FreeBSD box be used as a bluetooth headset by a cell
  phone?

I'd be grateful for any pointers and hints.