It does and I managed it recently. It was painful.
I had to pair, or at least I think I did. Was fetching a file. off a flip phone. Doing these things without "file" gets weird quick.
I also seem to recall an awesome Bluetooth control panel applet I used a few times in Windows XP.
At the time I had a pretty spiffy Moto flip phone. It could be the computer keyboard, handle audio play and record and more.
Pretty sure that all came from the phone driver. I do recall also using the computer in reverse the same way when the display was badly damaged. I could make phone calls, dialing with the computer and in general use the phone taped to the back of my laptop screen.
Today, it is simpler, and far less robust.