Cisco ASR 5000 Series - Page 768

Enhanced Charging Service Overview
▀ Postpaid Billing in ECS
▄ Cisco ASR 5000 Series Product Overview
OL-22938-02
Figure 187. Postpaid Billing with ECS in GPRS/UMTS Network
GGSN running ECS
GSS/ESS
Internet
1
4
8
3
BSS/UTRAN/SGSN
2
9
Rating
3
5
5 9
10
11
6
AAA
Billing System
3
12 11
7
Step 1 The subscriber initiates the session.
Step 2 After subscriber authentication and authorization, the system starts the session.
Step 3 Data packet flow and accounting starts.
Step 4 System periodically generates xDRs and stores them to the system memory.
Step 5 System generates G-CDRs/eG-CDRs and sends them to GSS, if deployed or to billing system directly as they are
generated.
Step 6 EDRs/UDRs are periodically SFTPd from system memory to ESS, if deployed, or to billing system directly as they are
generated.
Step 7 The billing system picks up the CDR files from the GSS periodically.
Step 8 Subscriber session ends after subscriber terminates the session.