Go to the 4 boxes icon top left of the plug in,
Click 'Settings',
then 'Exceptions list'
Click 'Add Rule'
Copy the root URL of the website eg cloudcall.com from your browser,
Paste this in to the 'Site Address' field in the plug in,
add * to the start and end so eg *cloudcall.com*
Select 'Click to Contact only' from the 'Direction' drop down,
Click 'Add'.

Refresh the page you were looking at.