Click to call Gadget
I would like to be able to add a button to a template or page that a cell phone user can click to call the office.
This is automatically done by mobile browsers. For example, see https://developers.google.com/web/fundamentals/native-hardware/click-to-call/?hl=en
AdminEvgeny Zaritovskiy (VP Technology of Wild Apricot by Personify, Wild Apricot by Personify) commented
Mobile browser are automatically doing this - for example, on iOS safari any phone number in in a page's text will be underlined and a visitor can click on it to call.