Tap To Call Button feature allows you to create an overlay from which viewers could contact you. This feature is only functional if viewers are using mobile phones to watch your video.
To configure this feature, navigate to Interactions & Gates >> Tap to Call
Configure the phone number to be used
Add the text that will show for the button. This is the button that will show that viewers can tap to call
Configure the start time and end time for when the button will appear.
Don't forget to Enable the feature when you want it added to your video