The SBC Core provides Lawful Intercept (LI) support using one of two methods:

  • Using ERE with provisioning support from EMA (license required).
  • Using centralized PSX with provisioning support from EMS (license required).

The SBC supports up to 500 simultaneous LI sessions. SBC works in coordination with an Intercept Server (IS) 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 ERE (or external PSX in centralized PSX solution), the SBC routes the call as directed and additionally reports call events to the IS.

The SBC also sends an RTP copy of the call's voice streams (call content) to an IP address provided by the IS. LI is configured by EMA (or EMS in centralized PSX solution). The target number is uploaded to LI table of ERE (or PSX, with the help of EMS).

When configuring LI through EMA/ERE, you must be "Calea" user. See Managing SBC Core Users and Accounts for descriptions of users and permissions.

You can configure the LI using only the default Address Context.

Note

The SBC 52x0 and SBC 7000 systems support creating IP Interface Groups containing sets of IP interfaces that are not "processor friendly" (i.e. carried on physical Ethernet ports served by separate processors). However, restrictions exist regarding the usage of such Interface Groups.

(This ability does not apply to the SBC 51x0 and SBC 5400 systems which have only two physical media ports. IP interfaces from the two physical ports may be configured within the same IP Interface Groups without restriction.)

For complete details, refer to Configuring IP Interface Groups and Interfaces.

 

See Lawful Intercept page for an in-depth explanation of LI functionality.

The Intercept object can be viewed as "Calea" user. For more information, refer to Users and Application Management - User and Session Management.

The Intercept can be checked for default Address Context. Use the drop-down box to select the default Address Context.

Intercept

The field displayed is:

Intercept parameter

ParameterDescription
Node Number

Specifies the global unique node number for the SBC used by the LI Server for ID.

Default - 0

 

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