Where can one find good documentation on how to program the NEC Elite 192? I have the installation guide and "programming" manual but it just lists all the memory blocks. I want a book that talks about the actual programming (or find a class that teaches it). I've done many other PBX systems and want to add NEC to my list. ie: here is how you add a phone, here is how to program a cap, car, what ever. I know how to get into programming and have added a few phones, changes users names, programmed a few buttons, but I'm just guessing at a lot of it so far (and copying other phones that work for now) but having a major issue adding requested features or VM changes.