Learn how to set up and use Wi-Fi calling, the 911 address, and the connection preference on the Nokia Lumia 521. Find out more on this page:
Turn on and connect
To use Wi-Fi calling, you must first register your 911 address at My T-Mobile. If you do not, you may see a REG09 error. To learn how to register your 911 address, see: 911 addresses: My T-Mobile.
To set the connection preference for the phone to use Wi-Fi calling or mobile networks, follow these steps:
To use Wi-Fi calling, you must first turn on Wi-Fi and connect to a network. To turn on Wi-Fi and connect, follow these steps:
To turn on Wi-Fi calling, follow these steps:
Note: When the Wi-Fi Calling feature is active, your phone displays the 'Wi-Fi Calling' text in your T-Mobile tile When you see the text, you are ready to make phone calls and send messages over the Wi-Fi network.
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