click on phone number to call

I’m trying to put a phone number in a web page that a user can click on to make a call. I’m using a template and wrapping the phone number in start a href=“tel:{{{xxxxxxx}}}”>{{{xxxx}}} end a but when i click on it in my phone it does nothing i have the same problem doing mailto i get this in the page but when i click on it nothing happens whether in browser or in phone thanks ken

seems to work in firefox, not in chrome… an issue of browser settings, i think