That's a tough question to answer because there really isn't a lot of self help out there that I know of. I started with a class on an older system with similar command functions back in 1996 and then picked up what I could as I went along. If you are a quick study some of the manuals and things are available from this site, and there are more possibilities now that we seem to have a cloud area set up to work with - I think someone recently uploaded the AMO manual for the system. I don't know V3 - I started at V5, and I know the newer the systems get the better the online help in the assistant gets - some of that may be helpful.
I have recently been taking classes to get "certified" on the latest version of the system, and if you can get your company to cough up the cash - I think it's less than 3 grand, go to academy.unify.com and look up the North American Service Curriculum for the Hipath 4000. There is an SVU (instructor-led online) class on Basic Administration using the Assistant - OS4USADM1 that is excellent. You will get a full reference book on how to do the most common, and some less common things using the assistant, such as add/change/delete stations, hunt groups, pick groups, forwarding, backup and restore and some other related stuff. You don't really need to be a rocket scientist to take the class as she will go over basic hardware and other information at the start. It is a 5-day class that runs something like 10 - 3. You can be taking the class while also logged in to your own system so you can look at the similarities between what you are learning and how yours is set up. If you can talk them into it I would really recommend it!
Don Bruechert, Voice Comm Analyst II
CareTech Solutions @ Holy Family Memorial
Manitowoc, WI, USA