iPhone SE 2nd gen won't receive incoming calls
My wife's iPhone SE 2nd gen has worked fine for past 1+ years. It now won't take calls. If caller leaves voice mail it first arrives on her phone after an hour or so. If she powers off her phone and then powers back on it will again accept calls but then after 30 minutes or so it stops receiving calls. Power off and then power on only fixes problem for a short time. There is plenty of storage space on her phone. Any ideas on how to fix this?
iPhone SE