I'm trying to change a couple settings on a Telrad system, and I have no idea what to do (when this thing was in it's prime, i was still playing on monkey bars. Something like '94-'95?). It is a Digital S400 system, using the Imagen voice mail system.
I want to change the main line attendant voice mail messages.
I also want to be able to password protect conference lines, so that only people w/ the password can join those lines.
I have searched high and low for some sort of manual to tell me how to perform these actions to no avail.

Any help would be greatly appreciated.