A shortcode to link to telephone numbers if the user is on a smartphone or leave plain text if not and then obfuscate the text/link. Example [link_obf
This shows how the plugin affects numbers on a non-mobile device in the plaintext format (custom non_mobile_text screenshot to follow).
this shows how the plugin affects numbers on a mobile device.
This shows the result of clicking on either of the links in the previous mobile screen.
This shows the resulting HTML from both the non-mobile device.