How to set the phone to turn off when someone is on the phone?

Setting method of Oppo r 15 mobile phone do not disturb mode:

1. Open the phone, unlock the phone and enter the main interface of the phone system. Click Settings to enter the system settings page.

2. After entering the system setting page, slide the page down and click the Do Not Disturb mode to enter the Do Not Disturb mode setting page;

3. You can choose "Manual Start" or "Automatic Start" here, and choose the start time and end time, with optional contents, such as "Notice", "Incoming Call" and "SMS"; Make relevant settings according to your own needs.