I am looking for a very stable and scalable BILLING ARCHITECURE based on OPENS SOURCE CODE for my VOIP Platform which is based in OPENSER + ASTERISK + MYSQL. Billing modules must be PREPAID and POASTPAID for the RETAIL and WHOLESALE operations for a NEXT GENERATION SERVICE PROVIDER.
The current environment is running LINUX DEBIAN distribution.
A full source code and complete documentation must be furnished with the project.
PLEASE, only prgrammer with enough expeertise and knowledge in VOIP and LINUX will be considered!!!