How to Fix FaceTime only Works on WiFi not Cellular data on iPhone 

FaceTime not working unless I'm connected to WiFi
how to fix FaceTime not working over cellular data
Why is FaceTime not working on my iPhone
FaceTime using cellular data instead of WiFi
FaceTime not working iOS 17
FaceTime connecting but not working
FaceTime not showing other person on iPhone
How to activate FaceTime on iPhone
iPhone 13 FaceTime not working
FaceTime not in Settings