Add clickable phone number on email signature

You can add or edit email signatures for Apple Mail in Mail Settings - Signature.

To include a clickable telephone number, first add the phone number to the signature, then select it and right click, Link -> Add Link, then use following URL:

tel://<your phone number>

to make phone number clickable.

[redacted.../viking]

One must also select Mail's Edit menu > Substitutions > Smart Links (off by default). The email recipient will have a single-clickable hyperlink that floats a notification panel on the right top screen (on a Mac) as shown below:

Make and receive phone calls on Mac or iPad - Apple Support

For a clickable phone number in an email signature, there is a different approach as described in this article for making an HTML signature in Apple Mail for macOS Sonoma. One cannot enter HTML in a Mail > Settings > Signature panel and a clickable phone number is a specialized HTML anchor:

<a href="tel:+1nnn-nnn-nnnn">+1 nnn-nnn-nnnn</a>



There are some tutorials online on how to create a clickable link using HTML.