Within the Staff Directory, you are able to change which contact details are displayed on a users contact card. 

  1. Go to System Settings, then down to the Staff Directory module settings
  2. Switching the toggle will automatically change the details for all users

If the toggle is in the off position, the staff directory will display the contact details listed under a user's personal profile.

If the toggle is in the on position, the staff directory will display the contact details for the user's workplace.

This applies across everyone in the directory, can cannot be set per individual user.