Turn off Do Not Disturb - Apple Support

You can turn Do Not Disturb on or off in Control Center, with Siri, or in your Lock Screen gallery.

Do not disturb on iPhone will not turn off - Apple Community

How to open the do not disturb mode in a screen locked iPhone - Quora

If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker - Apple Support

Perform quick actions on iPhone - Apple Support

How does the iPhone know if you're driving or not to automatically

How to turn off sleep mode on an iOS phone - Quora

Quickly change settings in Control Center on Apple TV - Apple Support

Use Touch ID on iPhone and iPad - Apple Support

How to use Do Not Disturb in Control Center on your iPhone or iPad