iPhone with iOS 16.6 in the Settings FaceTime icon is greyed out.
iPhone 8 plus with iOS 16.6, the FaceTime icon is greyed out in Settings. However, the Messages icon in the Setting is not greyed out. I have tried restarting the phone couple of times, and the OS is the up to date (iOS 16.6). I am on a reliable WiFi network and can use FaceTime directly from a message and the FaceTime app, but I can't change the Setting (See screenshot below). So how do I get the FaceTime icon in Settings to not be greyed out?