Does anyone know if the bluetooth stack in the n900 exposes a DUN profile?

The longer version of this question is "can I use this as a modem?".

The US translation may be "does this phone support tethering"? I am never certain about this last one, as the phrase "tethering" seems to have only come into parlance recently, and from the US, whereas I have used every phone I have owned for 10 years as a modem - even over IR before BT came on the scene.

So I wonder sometimes if it just got a name recently, or if it is a CDMA thing, which thankfully the rest of us in the world never really had to put up with.

Err.. sorry, rambling. Is there a DUN profile?