A telecommunications service provider architecture integrates multiple architectures which include prepaid and post-paid processing systems. The convergent enhanced architecture provides performance, scalability, and efficiency consistent with a prepaid architecture and flexibility and configurability consistent with a post-paid system. The convergent architecture provides messaging interfaces between a telecommunications support architecture and a prepaid architecture or a combined rating and billing architecture. The messaging interfaces support message transfer between the processing systems in the architectures to provide information exchange including billing exchanges, rating exchanges, and customer management exchanges.