An Icon that has Minus sign in a white circle

[Khaipi]

I would like to know why I have an Icon that has a minus sign in a white circle. Please!

[Uliwooly · Accepted solution]

@Khaipi

Simple that's the do not disturb mode

on the home screen press > volume up 

[Khaipi]

You are right. Thanks!

[Uliwooly]

@Khaipi

Anytime