Why does the call link not work

Hey there, @hifiwizard

Clicking almost any field (except websites) will copy the information to the clipboard, including phone numbers. However, if you click the 🔽 down arrow in the field, you'll see a Call option there:

That will then open FaceTime to make the call. On an iPhone, tapping and holding the field will do the same thing:

Give those things a try and let me know how you get on. I'll be here if you need further help. :)

— Grey