Cisco ASR 5000 series Product Overview page 768

▀ Postpaid Billing in ECS
Figure 187. Postpaid Billing with ECS in GPRS/UMTS Network
BSS/UTRAN/SGSN
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.
▄ Cisco ASR 5000 Series Product Overview
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GGSN running ECS
Billing System
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Enhanced Charging Service Overview
Rating
GSS/ESS
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Internet
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