Cisco ASR 5000 Series Administration Manual page 75

Enhanced Charging Service Overview
Table 8. Postpaid Billing with ECS in GPRS/UMTS Network
Step Description
No.
1 The subscriber initiates the session.
2 After subscriber authentication and authorization, the system starts the session.
3 Data packet flow and accounting starts.
4 System periodically generates xDRs and stores them to the system memory.
5 EDRs/UDRs are periodically SFTPd from system memory to ESS/external storage, if deployed or to billing system
directly as they are generated.
6 The billing system picks up the xDR files from the ESS/external storage periodically.
7 Subscriber session ends after subscriber terminates the session.
8 The system stores the last of the xDRs to the system memory and final xDRs are SFTPd from system memory to the
ESS/external storage, if deployed or to billing system directly.
9 The ESS/external storage finally sends xDRs to the billing system.
Cisco ASR 5x00 Enhanced Charging Services Administration Guide ▄
Accounting and Charging Interfaces ▀
75