To minimize the popup, click the double arrows in the tab on the left. This is handy when you want to move the popup out of the way. When you minimize the call popup, it will be docked on the right-hand side of the screen for easy access.
If you wish to maximize the popup returning it to its normal size again, click on the Tenfold tab.
If you would like to close the popup completely, you can click the ‘X’ to close.
You can open popup again by selecting ‘Show Popup‘ in the extension Drop Down Menu.