[asterisk-users] ivvr with asterisk

[Pham Quy]

Hi all, 

First I'm very new. I want to build an Interactive Video-voice Response
system. There is number of choice I have found so far: FreePBX, TriBox,
Asterisk. 

Which is the best in my case? and what do i need to build such IVVR
system?

Thanks.
Quyps