Cisco ASR 5000 Series, Обзор продукта

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Enhanced Charging Service Overview
▀ Prepaid Billing in ECS
▄ Cisco ASR 5000 Series Product Overview
OL-22938-02
Prepaid Billing in ECS
In a prepaid environment, the subscribers pay for service prior to use. While the subscriber is using the service, credit is
deducted from subscriber‘s account until it is exhausted or call ends. The prepaid charging server is responsible for
authorizing network nodes (PDSNs and HAs, or GGSNs) to grant access to the user, as well as grant quotas for either
time connected or volume used. It is up to the network node to track the quota use, and when these use quotas run low,
the network node sends a request to the prepaid server for more quota.
If the user has not used up the purchased credit, the server grants quota and if no credit is available to the subscriber the
call will be disconnected. ECS and DCCA manage this functionality by providing the ability to set up quotas for
different services.
Prepaid quota in ECS is implemented using RADIUS and DCCA as shown in the following figure.
How ECS Prepaid Billing Works
The following figure illustrates a typical prepaid billing environment with system running with ECS.
Figure 184. Prepaid Billing Scenario with ECS
Operator’s Transport
Network
Internet
System running ECS
Rating
Billing System
PrePaid
(RADIUS/DCCA)
Data Warehouse
Service
Platform
L-ESS (Optional)
EDR/UDR
storage
Service
Platform