1. A T-Mobile compatible phone / device (BlackBerry 8320)
2. A broadband Internet connection like DSL or cable.
Satellite or dial-up will not work no matter what you do.
3. A wireless router. It doesn’t have to be a T-Mobile router, but that is always a good idea to make sure there will be no issues related to a non-Tmobile router. If you’re not using a T-Mobile router make sure no one is file sharing or burning up all of your bandwidth while you’re trying to make a call.
4. IPSec needs to be allowed through your router. You can often find this under VPN Passthrough in the router configuration.
Most routers can be configured by typing http://192.168.0.1 into the web browser
5. You need to set up your T-Mobile account with an E911 address. The FCC mandates that any phone which can dial 911 needs to have an address associated with it. I can’t confirm this, but I believe if the “system” detects you are using HotSpot @Home without this address it cuts you off.
You can set your account up by going to the T-Mobile.com website and signing into your account. Click the View My Profile link at the top right corner of the main web page once you sign in. You should see a 911 ADDRESS tab. Click it and update away.
6. If you get an error message, note the W- or J- error code you get. Check the FAQ (Wifi / UMA Error Codes) listed below or call T-Mobile technical support with the error code. Using that code, they can tell you what the issue is and provide steps to solve it.
Wifi / UMA Error Codes