If you filter Usage, its only on one .... (Is it an Account or a DID? I have no virtual numbers.)
Maybe an ALL is unnecessary?
You might want to break out the numbers into Total, Billed, and Pending?
Since VOIPo's rearranging things, how often will Usage get billed?
Will there be various triggers? (Weekly? Monthly? It not in Real Time.)
Perhaps you are working on that part and we will see no Usage Billing until its ready?
