If you can get your hands on the old Norstar Manager 2.0, it has excellent report capabilities. With it, you can even do the reports from the file you get when you do a backup. From 2.1 forward, that great capability was removed for some stupid reason. With it, you can get a system audit of every device down to every single button on every set, a complete printout of system speed dials, as well as all personal speed dial numbers programmed.
I was heartbroken when the (new and improved) NM and NRU came out.
MarvO said it