Please find the attachment , as attach shows we have 7 locations which 6 location connected with fiber uplinks to main Site-DC,
the main Site-DC only we have PSTN lines , now each location i need separate billing for user please suggest me how it possible,
as i study for billing imagical billy blues will help please provide me a good solution.
We(CommSouth) are one of the 3rd party solution provider and we offer CDR Accounting, Reporting and Billing solution for Cisco Platform as well.
it is possible to offer the solution based on the architecture diagram you have shared.
You can visit this link for more information: http://www.commsouth.com/commcontrol-call-accounting-software.php
If you are thinking of a 3rd party Billing Application to process the CDR feed and provide Billing information and reporting I am sure we can give you a solution for your problem.