I added the contact info (address, phone, email) to the top of the “Welcome” page. If you tap on any of these on an iPhone with Safari browser, only the address brings up a map. Tapping on the phone or email has no effect.
If I use the Chrome browser on the iPhone, they all work as expected: the adress bings up the map, the phone asks if you want to call, the address brings up a mail prompt. Only Safari has an issue on the iPhone.