Gmail is smart enough to turn telephone numbers into links (most of the time) and so they make them available to click on:
They are a standard telephone link in the format of:
<a href="tel:323-601-1200">323-601-1200</a>
While browsing the web I have a handler set for the tel: protocol and it works fine, but inside Gmail it wants to use the builtin dialer:
How can I keep Gmail from using the dialer for tel: links in email messages?
