IPRN customization of A2Billing

IPRN billing is a system of sharing revenues that come from incoming (ingress) telephony traffic. A client of the system (as well as reseller or agent) opens an account in the system and has DIDs allocated. The numbers are allocated uniquely to that client and no one else can use them as long as they are allocated to the client. If unused, the can be revoked and put back in the DID bank. Each time a minute of traffic hits the numbers from the PSTN, the carrier of the numbers forwards them to the system and the calls are redirected to the client. Then a Credit Note is issued to the client and the client get paid. Usually this payment is correlated with the payment from the numbering carrier, but this is not necessarily a rule. Finally the CN is paid to the client and the whole process repeats.