How to cancel the call when Huawei's mobile phone has a sound?

O: Telephone do not disturb mode. Go to Settings and turn it off.

Do not disturb incoming calls of Huawei mobile phones can be set by the following operations:

1. Click the "Settings" icon to enter the "Settings" interface.

2. Click "Do Not Disturb" in "Settings" to enter the "Do Not Disturb" setting interface.

3. In the "Do Not Disturb" interface, you can set it flexibly according to your own needs. In the "Do Not Disturb Mode" option below, you can freely define that some contacts will ring at the "Do Not Disturb" time.