Make a call with Wi-Fi Calling - Apple Support With Wi-Fi Calling, you can make or receive a phone call if you have a Wi-Fi connection in an area with little or no cellular coverage Learn how to make a voice call using Wi-Fi Calling
How to Enable Wi-Fi Calling on Your iPhone - How-To Geek Head to Settings > Phone and tap on the "Wi-Fi Calling" option Enable "Wi-Fi Calling on This iPhone", then confirm in the pop-up window that appears Tap "Update Emergency Address" so that your call can easily be traced if you call emergency services
How to enable Wi-Fi Calling on an iPhone - iGeeksBlog Struggling with call drops due to weak signals? Learn how to enable and use Wi-Fi Calling on your iPhone to maintain uninterrupted calls even in low reception areas