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The SBC Core platforms support Lawful Intercept (LI) functionality using one of the following solutions:
The SBC works in conjunction with the IS, as well as the ERE and EMA (or an external PSX and EMS) to provide call data and call content to law enforcement agencies for calls involving identified intercept subjects. When it receives matching LI criteria in a policy response from the ERE (or PSX), the SBC routes the call as directed and additionally reports call events to the IS. It also sends media stream (call content) to an IP address provided by the IS.
The SBC supports three LI flavors:
The following table describes the Call Data Channel (CDC) configuration information required to distinguish between Default LI, IMS LI, and PCSI (P-Com.Session-Info) LI. It also provides the LI flavors supported in different platforms:
|Flavors||CDC Configuration||Platforms||Routing Policy||LI Interface|
|Intercept Standard||Vendor Id||D-SBC||SBC SWe/SBC 5000/7000 Series||External PSX||ERE||X1||X2||X3|
|Legacy LI (default)||packetCable||None/Utimaco/Verint||Not Supported||Supported||Supported||Supported||SOAP||
|PCSI LI||packetCable||Ss8||Supported||Not supported||Supported||Not Supported||TLS||Not Supported||
|IMS LI||3gpp/etsi||Verint/utimaco/none||Not Supported||Supported||Supported||Supported||SOAP||
The SBC supports various flavors of LI and a generic Call Data Channel (CDC) model to support any new flavors of LI. The CDC configuration model is described as follows:
interceptStandard,to support identifying and configuring the various LI flavors.