Prepare invoices, charged for services provided by the service for which the proposed system must be able to connect and send data to the Billing system of CDR kasot by at least the following:
Prepare invoices charged to the seller. The proposed system must be able to connect and transfer data to the CDR Billing system for CAT have to work a little below.
Prepare invoice charge from the user. The proposed system can connect and send the information to the system of CDR Billing cat. You can work at least as follows.