Shaking with hubcentric rims Jeep Wrangler TJ Forum & Community This is one of those iPhone features more people should know about! You can set a specific contact(s) to ring through even when your phone is on Silent or in Focus mode. iPhone Not Ringing: Here's What To Do Red Pocket Mobile Why does my iPhone not audibly ring when it's not on silent and the volume is turned all the way up?!? : r iphonehelp I have a problem with iPhone Action button. Switching to silent mode when the screen is off vibrates 3x and switching to ring vibrate 1x but the screen doesn't light up. Sometimes, My iPhone Doesn't Vibrate! Here's The Real Fix.