Go to Settings > Sounds and make sure the 'ringer and alerts' volume is not muted. Make sure the 'ringer and alerts' volume is not muted Make sure 'Manual' and 'Scheduled' are off.Īlternatively, flip up from the bottom of the screen and tap the moon icon again so that it’s not highlighted to switch off the DND mode.ģ. To turn it off, go to Settings > Do Not Disturb. If the silent switch was already off, you want to make sure the 'Do Not Disturb' feature isn't active. It can be unintentionally turned on and lead to all sorts of confusion and missed calls or seemingly ignored text messages. With almost certain guarantee, the reason an iPhone is not ringing or making alert sounds apparently out of the blue is because of the Do Not Disturb feature. Make sure it is not turned on as shown in the picture below: Once on, you are no longer able to hear any sounds while receiving calls and messages. You are able to switch to 'silent mode' by turn off the mute button. The new iPhone 6/6 Plus and iPhone 6s/6s Plus delivers user-friendly design and inherit the 'mute button' located on the side from iPhone 5/4. Try performing a backup and restore on iPhone.Turn on 'Allow Notifications' on iOS 11 device.Make sure the 'ringer and alerts' volume is not muted.
