Cisco ASR 5000 Series Product Overview ▄  
Chapter 21   
Enhanced Charging Service Overview 
 
 
This chapter provides an overview of Enhanced Charging Service (ECS)/Active Charging Services (ACS). 
ECS is an enhanced or extended premium service. The System Administration Guide provides basic system 
configuration information, and the product administration guides provide information to configure the core network 
service functionality. It is recommended that you select the configuration example that best meets your service model, 
and configure the required elements for that model before using the procedures in this chapter. 
This chapter covers the following topics: 
 
  Introduction 
  Licensing 
  ECS Architecture 
  How ECS Works  
  Enhanced Services in ECS 
  Accounting Interfaces 
  Charging Record Generation 
  Charging Methods and Interfaces 
  Prepaid Billing in ECS 
  Credit Control Application (CCA) in ECS 
  Postpaid Billing in ECS 
  External Storage System 
  Redundancy Support in ECS