Enhanced Charging Service Overview
▀ Enhanced Services in ECS
▄ Cisco ASR 5000 Series Product Overview
Expiration of an operator configured data volume limit per service data flow: The service data flow volume
counter is closed and an interim CCR is sent to the Online Charging Service, indicating the elapsed time and
the accrued data volume since the last report for that service data flow. A new service data flow container is
opened if the service data flow is still active.
Change of charging condition: When QoS change, tariff time change are encountered, all current volume
counts are captured and sent towards the Online Charging Service with an interim CCR. New volume counts
for all active service data flows are started.
Administrative intervention by user/service also force trigger a chargeable event.
A Flow Data Record (FDR) is generated for each of the above events. These generated records are stored in an
EDR/UDR/FDR (xDR) and eG-CDR format (for GGSN deployments) and retrieved by ESS/GSS/mediation system for
charging and/or analysis.
The file naming convention for created xDRs (EDR/UDR/FDRs) are described in the Impact on xDR File Naming
section.
Content Filtering Support
ECS provides off-line content filtering support and in-line static and dynamic content filtering support to control static
and dynamic data flow and content requests.
Content Filtering Server Group Support
ECS supports external Content Filtering servers through Internet Content Adaptation Protocol (ICAP) implementation
between ICAP client and Active Content Filter (ACF) server (ICAP server).
ICAP is a protocol designed to support dynamic content filtering and/or content insertion and/or modification of Web
pages. Designed for flexibility, ICAP allows bearer plane nodes such as firewalls, routers, or systems running ECS to
interface with external content servers such as parental control (content filtering) servers to provide content filtering
service support.
In-line Content Filtering Support
Content Filtering is a fully integrated, subscriber-aware in-line service available for 3GPP and 3GPP2 networks to filter
HTTP and WAP requests from mobile subscribers based on the URLs in the requests. This enables operators to filter
and control the content that an individual subscriber can access, so that subscribers are inadvertently not exposed to
universally unacceptable content and/or content inappropriate as per the subscribers‘ preferences. Content Filtering uses
Deep Packet Inspection (DPI) capabilities of ECS to discern HTTP and WAP requests.
Important: For more information on Content Filtering support, refer to the Content Filtering Services
Administration Guide.
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