iOS8 multiple phones sharing icloud account all ring at same time
I have 2 iPhones that share an icloud account... one for work and one personal. After upgrading both to iOS8 whenever you would call one of them, annoyingly, both would ring.
After some digging around I found that you must go into Settings -> FaceTime and turn off iPhone Cellular Calls.
Hopefully this helps anyone else having the same issue.
iPhone 5s, iOS 8