Is it possible to make a phone number clickable in HTML so that when a user clicks on the number it is called?
Something like this should work:
<a href="tel:+1-800-555-5555">Call 1-800-555-5555</a>
More info:
http://en.wikipedia.org/wiki/URI_scheme#tel:
https://www.rfc-editor.org/rfc/rfc3966