I have been searching for months on how to do this. In order to connect your Ipaq hx22-- device to the phone to use its modem, you will first need to call Cingular and have them add a data line to your account. (its free). They will want to know why you need it. Let them know that you want to send faxes from your phone. After they add it, you can virtually use any isp provider to connect you to the internet. I use earthlink. You can configure this under connections. adding a new bluetooth dial up connection. make sure that you use a local number. If you are traveling you can use an 800 number but the connection is much slower than on a local number. After you have configured it the phone will dial the internet line and you will then be conected. if you need further help let me know.