What I do know is that if you bring up a Standard Agent Display, make a private copy and go to the tab that lets you add and move columns around, it is an "add-on" column from there. It says something like Outdialed # or something to that effect and you have to add it to the display. Sorry I don't have the exact column name, but I am not sitting in front of a web server right now.
When I get into a web server, I can find the exact name of the column, but you might be able to find it from that description.