Turn on Wi-Fi calling
When Wi-Fi calling is on, your device can make and receive calls via Wi-Fi networks. Your device will choose to make calls via Wi-Fi or over a cellular network based on which signal is stronger at the time.
1.
From the Settings app, scroll to and tap Phone.
2.
Tap Wi-Fi Calling.
3.
Tap or slide the Wi-Fi Calling on This iPhone switch to ON.
4.
Tap Enable.
If necessary, follow onscreen instructions to enter an address for use in the event of an emergency call. You can update this address at any time.
5.
You've completed the steps!
