Icon links do not work on mobile devices

Hello HB Themes Support,

Can you please review the below site/url and advise as to what may be causing the “Email” & “LinkedIn” text links under the “Contact us” section icons to not work on my mobile devices. They work fine from my desktop (iMac & MacBook Air), however they do not work when viewed on a iPhone 5S or iPad (4thGen).

http://fsimanagementdev.fsidesign.work/

Also, can you please confirm the script that supports making a phone number “click-to-call” on a mobile device. At present I have the above Phone icon text linked as (tel: +1xxxxxxx)

Thanks in advance,
Richard