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Note

Applicable only for CALEA users.

Overview

This section outlines the commands to configure the IMS LI on the M-SBC. For more information about the IMS LI configuration, refer to IMS LI Configuration.

Note
  • As a prerequisite to configure the IMS LI on the M-SBC, ensure that the Call Data Channel (CDC) and the Mediation Server are enabled and running.
  • You can configure the IMS LI with only the default address context.
  • For more information on the parameters and their descriptions, refer to Intercept - CLI.

Creating CDC for Intercept Flavor as IMS LI

To configure the IMS LI on the M-SBC, use the following commands to configure the media (X3) interface.

For other options of how to configure the intercept flavor as IMS LI, refer to Configuring SBC For Lawful Interception.

% set addressContext default intercept callDataChannel <callDataChannel_name>
    interceptStandard <etsi | threeGpp> 
    vendorId <verint | utimaco | none | groupTwoThousand>
    mediaIpInterfaceGroupName <mediaIpInterfaceGroup_name>
% commit

The following is an example of how to create a CDC for the intercept flavor as IMS LI.

Example
% set addressContext default intercept nodeNumber 74120 callDataChannel CDC interceptStandard etsi vendorId groupTwoThousand mediaIpInterfaceGroupName LIG2
% commit
Note

The mediaIpInterfaceGroup for the CDC must differ from the other media ipInterface groups. This difference ensures that the LI does not use the signaling ipAddress to send intercepted traffic (signaling or media) towards the mediation server.

Configuring CDC for Media Interception over TCP or UDP

Note

You can configure only one mediation server for the M-SBC.

% set addressContext default intercept callDataChannel <callDataChannel_name> mediationServer <mediationServer_name> media <tcp | udp>
   ipAddress <IP_Address>
   portNumber <0-65535>
   dscpValue <0-63>
   mode <inService | OutofService>
   state <disabled | enabled>
   kaTime <60-7200>
   kaInterval <5-60>
   kaProbe <4-8>
% commit

The following is an example of how to configure a CDC for the media interception over TCP.

Example
% set addressContext default intercept callDataChannel CDC mediationServer MS1 media tcp ipAddress 10.54.78.20 portNumber 65120 
% commit
% set addressContext default intercept callDataChannel CDC mediationServer MS1 media tcp state enabled mode inService
% commit 

The following is an example of how to configure a CDC for the media interception over UDP.

Example
% set addressContext default intercept callDataChannel CDC mediationServer MS1 media udp ipAddress 10.54.78.20 portNumber 65200
% commit
% set addressContext default intercept callDataChannel CDC mediationServer MS1 media udp state enabled mode inService
% commit 

 

Note

The SBC supports IPsec for media interception over TCP and UDP.