Go to Settings

Select “Connections”

Select “Wifi Calling”

Turn on “Wi-Fi Calling on this phone”

On some phones, you can also enable Wi-Fi Calling from the Quick settings panel. Swipe down from the top of the screen using two fingers, and then tap the Wi-Fi Calling icon to turn it on.

Note: You must be connected to a Wi-Fi network and have active service via a SIM or eSIM to enable Wi-Fi Calling.