I need asterisk installed on my VPS, with a2billing, a realtime kernel, freepbx. It must be secure and configured to work correctly. It a matter of simply building from the source code and correctly configuring SQL. Doesn't need to be configured, merely set up to the point where I can program in the SIP information and rates. Must be of adequate performance to support high quality voice with no timing issus (hence 1000hz/realtime kernel.