Asterisk +a2Billing + Freepbx on CentOS 5.6

This project involves the installation of a Asterisk +a2Billing + Freepbx on my CentOS 5.6 server The current config on the asterisk based VoipNow server has to be moved to the new server. The setup involves 2 separate customers each with a dailplan of 10 extension - ivr with 3 options to 3 separate extentions - Billing with Sample for local calls (0n) mobile calls (06nnnnnnnn) All international (00nnnnnnnn) sip trunk 1 outgoing 1 incoming 1 in and outgoing conference room - 5 user calling cards 10 calling cards