It depends on whether you have the data package with your cell carrier. I have Sprint and with a data package, I can surf using any phone with the bluetooth device. To do that you would have to configure in system's preference, network, and your phone should be automatically discovered. Then you can create a new location. Then under the show network status, select bluetooth. Then under the bluetooth modem I select Sprint PCS Vision. It all depends on your carrier. But there are lot of choices for other brands of cell phones. Then under PPP, I generally just enter the phone number #777. And hit dial now. You will see a phone icon to the right side of your menu bar. For future use you would simply click on that and click connect. Hope that helps.