Suggestion: add the "tel:" parameter to telephones

By adding a small code it’s possible to make a one-click call.

Details here: http://www.w3.org/wiki/Introduction_to_mobile_web#Cameras.2C_phones_and_other_hardware_features

This link is also recognized by Skype for people who’ve paid credits to call real numbers.

https://wordpress.org/plugins/store-locator/