[Asterisk-java-users] Switchboard application problems

[<mt...@st...>]

Hi!
  My task is to write "switchboard" application for Asterisk. The
user must be able to answer an incoming call
from "outside" and then divert it to proper extension. As I am a 
completly newbie to Asterisk
I have several problems with it (I know it's quite a long list and some 
of them might be dumb questions, so
please be merciful :-) - I really didn't find out how to do it).
1) I need to get a list of all connected phones(we use SIP and
IAX2 phones) and their states
2) The same thing but with ZAP channels
3) Is it possible to bind a new created object of Channel with
some (IAX2 or SIP) peer?
4) Our Asterisk admin did a configuration with Asterisk Management 
Portal. I noticed that structure of database is different from the 
structure mention on 
http://www.voip-info.org/tiki-index.php?page=Asterisk+database.
Is it possible to get a cidname of Extension without using database? If 
not, where can I find how is database structured?

Thanks for any help!

Martin