A quick snippet for you to add a mobile phone / telephone number call link for mobile sites:-
<a href="tel:123456789">Click HERE to Call: 123-456-789</a>
About the Author

Glenn
A highly experienced Web Designer / Web Developer (Webflow, WordPress, Weebly & Custom), Front-end / Back-end Developer & New Media Specialist, with extensive knowledge of a wide spectrum of technologies in the Development and Creative Industries, built up over a number of years.