Ive been doing a little research and there is a smörgåsbord of voip billing solutions out there, the only issue is the need for server access.

I did find one system that actually has a Reseller setup and gives each reseller a virtual billing server, but I assume you guys would have to completely reconfigure the system. So I can understand not wanting to go there.

I just request you guys research every system before spending the time and resources to build your own.

In this day and age, if you can think of it, someone is probably already selling it.