I could do, and am doing that in the “Work Phone” field (listing the phone number as “nnn-nnn-nnnn xnnn”, but I need an extension field that lists only the extension. I could relabel the output in the theme, but it feels pretty unprofessional to tell my users to put their extension in the “work fax” field or whatever. I also will be using this data with a separate json export plugin so I can feed my cisco phone directory.
If the answer is to open the core plugin files with vim and re-add the “extension” key to the phone field every time there’s an update, so be it, I guess.
