iPhone 5c not ringing for calls
My daughter's phone isn't ringing for calls, just vibrating. I checked the settings and the mute switch and even restarted the phone, nothing seems to work. When I adjusted the ringer volume in settings, the speaker worked just fine. She said it started happening after she had her thumb against the home button and something popped up on the screen. Any suggestions on what to try next?
iMac, Mac OS X (10.6.8)