Your iPhone’s Do Not Disturb mode blocks your calls, alerts, and notifications. If you’d like to start receiving those items, turn Do Not Disturb mode off on your phone.
Disable iPhone’s Do Not Disturb Mode From Control Center
Using Control Center is the quickest way to turn off Do Not Disturb mode on your iPhone. To open Control Center on an iPhone X or later, swipe down from the top-right corner of your phone’s screen. On other iPhone models, swipe up from the bottom of your phone’s screen. When Control Center opens, tap the “Do Not Disturb” option (a moon icon).
DND is now turned off on your phone. To re-enable it, tap the same icon in Control Center. And that’s all.
Deactivate iPhone’s Do Not Disturb Mode From Settings
Another way to disable your iPhone’s DND mode is by using the Settings app. On your iPhone, launch the Settings app. Then tap the “Do Not Disturb” option.
Turn off the “Do Not Disturb” toggle
Your iPhone’s Do Not Disturb mode is now disabled, and you will receive all your calls, alerts, and notifications as usual.