How to Create a VIP Whitelist

1. Create a new preset. click here
2. Add an "Incoming call schedule" (available on Android 10 or below).

3. Set the name and phone number for the schedule.

You can tap on the little contact icon to the left of the "Name" field to select from your contact list.

4. Add a "Ringer volume" setting that's set to 100%.

5.Save the preset.

Whenever that person calls, the app will set the ringer volume to 100%. 

As soon as the call ends, the ringer volume will revert to its former setting.