I have been having the same problem. I won't know if it works 'till someone calls - but I have just found in Settings>Do Not Disturb>Allow Calls From, change to EVERYONE.
No ringing for FaceTime, no alert sound for iMessage
I have been having the same problem. I won't know if it works 'till someone calls - but I have just found in Settings>Do Not Disturb>Allow Calls From, change to EVERYONE.