Wi-Fi Calling is a new iD service that lets you make and take calls using a Wi-Fi network. You can also send text messages through the same Wi-Fi network.
Indoor blackspots can stop you getting connected, but with Wi-Fi Calling, that's not a problem. It gives you clearer calls, in more places than ever before.
Wi-Fi calling will work when you are unable to connect to either a 3G or 4G network and have a minimum of 2MB speed.
Update your phone's software (if needed) and accept the latest carrier settings (for iPhone users). Then your Wi-Fi Calling is good to go. You may need to switch on Wi-Fi Calling in your phone settings.
* iPhone users will have to install the latest software (iOs 11.2)
Wi-Fi Calling uses Wi-Fi to smash through indoor blackspots, so you'll be able to make phone calls in more places.