Wi-Fi Calling allows you to make and receive calls over a Wi-Fi connection when the mobile network is unavailable. To use Wi-Fi Calling, you must first activate HD Voice on your smartphone, accept these Terms and Conditions and confirm or modify the U.S. address where you want emergency service sent if you call 911. You must also have access to the Internet through your device's Wi-Fi connection. If you lose your Wi-Fi connection while on a call, your call may drop. You can disable Wi-Fi Calling by going to Settings and toggling it off.
WARNING – IMPORTANT EMERGENCY 911 CALL LIMITATIONS
When calling 911, always tell the operator where you are. Your 911 call will go over Wi-Fi only if the cellular network is unavailable. It is very important that you update your 911 address (which can be done at any time through your device settings) whenever you change your location, since this is the location that will be given to emergency responders when you dial 911. 911 calls made over Wi-Fi may be delayed or unsuccessful (for example, if the 911 system doesn't recognize the address, electrical power is out, or your Wi-Fi connection isn't working). Any Wi-Fi call made to a U.S. number will be treated as a domestic call, no matter where the call originates, and you will not be billed for such calls (with the exception of 411 or other premium calls). Any Wi-Fi call made to a non-U.S. number will be treated as an international call, and will be billed in accordance with your international calling plan. Please refer to your service description or FAQs for more information on the use of the Wi-Fi Calling service, including any applicable charges.
Last Update: May 2020