From the terminal there are two commands which I believe are only avalable after ver 8, I think it was avalable at ver 7 but only as a patch, they are:-
LUCF = list user controlled features.
RUCF = revise user controled features.
Besides being handy commands, not many people know about them, they are mainly used by an engineer on an upgrade, because the diverts, ring tone no reply etc are only 'soft' commands these would be lost on a restart, reload etc.