Belkin FBT003 ver. 2.11 Bluetooth Dongle - SUCCESS

6315 paired easily with my laptop. Services offered by the 6315 that this dongle can use:

Audio Gateway
Bluetooth Serial Port
Dial-up Networking
File Transfer
Network Access
OBEX Object Push

I have personally used the Audio Gateway, Dial-up Networking, and File Transfer. All work fine, I have no reason to suspect the others wouldn't as well.