Under Avada > Theme Options > Header > Header Content > Phone Number For Contact Info, you can insert a phone number to display in the header. If you would like the number to be a link, you can add the number as per the code below, but you need to use single quotes. Double quotes will not work because the content is then treated like a variable or a parameter. See below for an example of the correct syntax.
Copy to Clipboard+45 40521604 1+45 40521604