[Asterisk-biz] hey, i am posting my questions again, something happend to my original email

[CSB]

I guess some parts are cut, here you go again.
Total of 11 questions.

Guys, I have some architectural/general questions. I am a data guy, 
coming from backbone, and dial ISP engineering to this so take it easy 
on me please.

1) Can we use one Asterisk server to serve multiple groups of users with 
their own extensions but each group could not call other groups? Only 
SIP phone dial extension plan. If someone tries to bring business 
solutions, do we need to deploy individual Asterisk boxes per business 
dial plan?

2) Is AMP good enough to configure extensions.conf, do we need to know 
ins and outs of this file to deploy Asterisks.

3) Can we use one Asterisk server to serve calling card business and 
business phone systems business with SIP phone dial extensions?

4) What are the main components of calling card business? So far I know 
that Asterisk and some calling card software needed.
I assume, a gateway in addition to this. But what are the components, 
like Radius server, or any other call manager, etc, ?

5) I assume for calling card business there couple different ways to go 
and build it.
I assume, someone could deploy Asterisk, and calling card software on 
it, and buy IP trunks to others who could supply all the rest with added 
costs.
Now, if someone wants to build all from scratch and do his own gateways, 
do his own termination point agreements, how easy to do this. Is it easy 
to find termination points and collect/pay cdr based agreement fees?

6) How does session border controller concept fit with Asterisk concept?

7) How does softswitch concept fit with Asterisk concept?

8) Can asterisk control gateways, and could became SS7 SSP point with 
point codes, etc?

9) DID issue? How does DID fit in a SIP call? Could anyone give me a 
quick call flow. Let’s say 3 people from outside US calls in US numbers. 
Do we need to own those DIDs, how does this DID work?

10) How useful Astricon 2005 at Anaheim could be in October? If I go and 
take all the tutorials, do I become smart enough to deploy, business 
solutions and carrier solutions?

11) Is there any documentation talk about this type of concepts? I 
checked wiki, and some other manuals but they all about details.

I hope you guys not pulling your hair out by now but as I said I am new 
to this voice thing.
Thanks for your help. I hope one day I can also contribute to questions 
by giving solid answers.