All of the previous posters stating it can't be done via Bluetooth are wrong, I use my 8830 with tethering via Bluetooth all the time when I am on the road. It took me many hours to figure it out, maybe I can make it easier for the rest of you, although no guarantees. Most laptops use the Toshiba Bluetooth hardware and therefore also use the Toshiba bluetooth stack, even if it's not a Toshiba laptop. I have a Fujitsu Lifebook Tablet series and it does. The key is to get rid of the Toshiba bluetooth stack and use the Microsoft default stack. Here is a link that might help. Please understand I take no responsibility if this doesn't work, but it did for me. Also, make sure you have your existing BT drivers in case you want to revert. Toshiba Support - Content Details
After doing this I was able to setup my 8830 with DUN service through the pairing and VZAccess works great. Good luck.