
Most of these devices work without any problems, but T-Mobile cannot guarantee their service unless you bought the device from us. Some manufacturers state their devices have T-Mobile Wi-Fi Calling.Check the Devices page to look up your phone.



E911 address: Before you can use Wi-Fi Calling, you need to set up an e911 address on your account in case your location doesn't show up automatically to a 911 dispatcher.Prevent unexpected charges when traveling abroad.
