[Asterisk-Users] Is it possible?

[isamar at isamarmaia.org]

Dear Folks,

Before using my precious time trying to configure what I'm imagining, I
would like to confirm if it's possible with asterisk.

I'm planning to buy several E100 cards to plug in my PSTN network here in
Japan and configure another H323 device in Brazil.
I would receive all calls here in Japan through IVR, get the user ID and
its password. So, I authenticate that in a database(postgres or mysql) and
play a message or a beep in the IVR allowing the user to press the
destination number. After that, the call is completed through H323.
I need H323 because the other side is running H323.
For inbound calls testing here in Japan, in the beginning I'd use a
Linejack because it's already in my drawer.

Questions:

1) Using the current * code, can this mission be accomplished ?
2) A scheme of billing would be possible as well?