IPhone 6 Plus sound ringer alert problems?

All of a sudden this morning I'm not being notified of calls or text. My alarm still works and videos and music work so I know it's not the speaker. I've checked the dnd button it's not on. I've checked the silent mode it's not on. The volume for ringer is turned up high. And when I go to sound and move the ringer up and down I hear the sound just not when someone is calling.

No