got a few questions (shoot me an email if needed because of passwords etc)

a>how do i get into programming? certain port i need to be on?
b>i need to get a list of ports/exts. how can i go about that?
c>station names?
d>ring groups (if available)?
e>feature codes?
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the background........
removing this system at a resort and need to gather all of the info i can so it can match the new samsung idcs500 system i'm putting in and not have the customer remember all new numbering etc.