How to Turn off do not disturb

For iOS16

Turn off a Focus

Apple Support's article: Turn on or schedule a Focus on iPhone

says

"When you’re finished using a Focus, you can quickly turn it off to allow notifications again.

After you turn off a Focus, it still appears in Control Center and can be reused.

1. Do any of the following:

• • Touch and hold the Focus icon on the Lock Screen.
  • Open Control Center, then tap Focus.

1. Tap the Focus that’s on to turn it off."

For earlier iOS versions ...if needed:

Open the article from the link below and choose correct iOS at the top of the article for accurate info:

Turn on or schedule a Focus on iPhone – Apple Support (AU)