I get a message saying you call cannot be completed as dialed. My wife’s 6s can call the number no problem. I’ve also had people tell me that when I call them they don’t see my name but only 1+ for a caller ID. What is going on with this phone?
It could be something to do with your network provider, rather than the phone itself. Have you tried swapping your sim in your wife's phone and checking. Maybe a replacement simcard will solve your problem.