Wi-Fi Calling allows you to make and receive calls, access unlimited high-speed data, and send and receive messages over a wireless Internet connection. Using Wi-Fi Calling is easy! Simply connect to an available Wi-Fi network of your choice, confirm that Wi-Fi Calling is enabled on your phone, and continue to use all of your favorite device features!
To use Wi-Fi Calling, you need a supported T-Mobile Wi-Fi Calling-capable phone and Wi-Fi Internet access. For information about setting up Wi-Fi Calling on your phone, check out the How-to guides for your device on the Device tutorials page.
Before you use Wi-Fi Calling, you also need to make sure that you set up your e911 address, as your location may not be automatically available to the dispatcher if you need to call 911. Learn how to set up your e911 address.
You must disable data roaming when traveling internationally to avoid incurring data roaming charges. For more information, see International roaming services.
International calls and messages to the U.S.
With unlimited plans like T-Mobile One and Simple Choice, all incoming calls, all incoming messages, and outgoing calls or messages to U.S. numbers over Wi-Fi Calling are free.
If you have a plan that doesn't offer unlimited calling, calls made over Wi-Fi Calling count against your plan minutes. For Pay In Advance prepaid lines, calls made over Wi-Fi deduct from the plan bucket just like regular calls.
When roaming outside the U.S., using VPN may connect you to countries not included in the Simple Global Country list. So even if your location is in a Simple Globabl country, you may be charged World Class rates.
You'll still receive the standard Welcome SMS when VPN connects to another country through your device, and you must enable data by dialing #RON#.
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