T-Mobile is no longer providing support for using your Blackberry or Windows Mobile phone as a modem. They had previously stopped supporting using regular cell phones as modems before this. T-Mobile will still allow you to use your phone as a modem, they just wont help. They do however provide a link to thier forums at www.t-mobile.com/phoneasmodem for the setup and help.

With this change, I am working on new articles on setting up your phones as modems as well as troubleshooting those connections. Feel free to use the Contact|Request link at the top of the page to request anything specific.

If you want T-Mobile to support your Modem connection still, you must buy the T-Mobile Webconnect USB Stick. Which costs 49.99 per month...for only 5GB of data...which is stupid considering you can get a T-Mobile 3g enabled Windows Mobile phone or the new Blackberry Bold 9700 3g phone and use it as a modem for and have UNLIMITED data (They do however throttle-decrease- your connection speed at 10GB).