Cisco Cisco ASR 5000
IP Services Gateway Overview
▀ Enhanced Feature Support
▄ IPSG Administration Guide, StarOS Release 17
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Figure 4.
IPSG Message/Data Flow (RADIUS Server Mode - IMS Auth Service)
IPSG also supports IMS Authorization Service Session Recovery with the following limitations:
Active calls only
The number of rules recovered is limited to the following:
3 flow-descriptions per charging-rule-definition
3 Charging-rule-definitions per PDP context
The above are combined limits for opened/closed gates and for uplink and downlink rules. IMSA sessions with
rules more than the above are not recoverable.
Gy Interface Support
This is a Diameter protocol-based interface over which the IPSG communicates with a Charging Trigger Function
(CTF) server that provides online charging data. Gy interface support provides an online charging interface that works
with the ECS deep packet inspection feature. With Gy, customer traffic can be gated and billed in an “online” or
“prepaid” style. Both time- and volume-based charging models are supported. In all of these models, differentiated rates
can be applied to different services based on shallow or deep packet inspection.
(CTF) server that provides online charging data. Gy interface support provides an online charging interface that works
with the ECS deep packet inspection feature. With Gy, customer traffic can be gated and billed in an “online” or
“prepaid” style. Both time- and volume-based charging models are supported. In all of these models, differentiated rates
can be applied to different services based on shallow or deep packet inspection.
For more information on Gy interface support, refer to the Gy Interface Support appendix in the IP Services Gateway
Administration Guide.
Administration Guide.
Lawful Intercept
The Cisco Lawful Intercept feature is supported on the IPSG. Lawful Intercept is a license-enabled, standards-based
feature that provides telecommunications service providers with a mechanism to assist law enforcement agencies in
monitoring suspicious individuals for potential illegal activity. For additional information and documentation on the
Lawful Intercept feature, contact your Cisco account representative.
feature that provides telecommunications service providers with a mechanism to assist law enforcement agencies in
monitoring suspicious individuals for potential illegal activity. For additional information and documentation on the
Lawful Intercept feature, contact your Cisco account representative.