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The EMS uses the EMS CALEA user role for all LI configuration operations and the admin user for communicating over netconf to the SBC. The EMS creates the SBC CALEA user credentials automatically when an SBC registers to the EMS. Cloud SBC instances are registered dynamically in the EMS.

Prerequisites

To configure the Call Data Channel (CDC) for a cloud S-SBC instance:

• Instantiate an EMS SWe instance with LI interface support using an appropriate Heat template. For more information, refer to EMS Standalone Instantiation for Geographical Redundancy (GR) Deployment.
• Ensure that basic S-SBC configuration is completed as in Configuring S-SBC.
• Enable the EMS CALEA user. For information, refer to Enabling Lawful Intercept on EMS Standalone.

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Configuring CDC using EMS CALEA User Account Configuring CDC using EMS CALEA User Account

Configuring CDC using the EMS CALEA User Account

The LI Call Data Channel must be configured on the S-SBC to indicate that it supports interception. For LI, the CDC configuration is performed using the CDC Configuration Manager through the EMS. You can create CDC information only when logged in as the EMS CALEA user from the EMS CDC configuration window.

Configure Cluster CDC for Cloud S-SBC Nodes

To configure a cluster CDC for cloud S-SBC nodes:

1. Log into EMS as an admin user.
2. Launch the SBC Configuration Manager for the Head End SBC. Refer to Configuring an SBC SWe Cluster using the EMS for more information.
3. Launch another EMS session as the CALEA user.
4. Under Network Mgmnt, click Lawful Intercept. The Lawful Intercept CDC Provisioning window is displayed.

5. Click the Cluster CDC tab. The Cluster CDC pane is displayed.

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   0 Figure 1 Cluster CDC Tab

   
   The following parameters are displayed:

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   0 Table 1 Cluster Configuration Parameters
   Parameter Description Locked Configuration Specifies the configuration name. Configuration Role Specifies the type of the configuration role. The roles are Default and Alternate. Cluster Specifies the name of the cluster. Master Configurator Specifies the name of the locked master configurator instance.

6. Select the S-SBC cluster.

7. Click Launch CDC Configuration Manager. The SBC Configuration Manager window is displayed. 

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   0 Figure 1 Launch CDC Configuration Manager

8. Create a call data channel (Proceed to Creating Call Data Channel for S-SBC below).

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Creating Call Data Channel for S-SBC Creating Call Data Channel for S-SBC

Creating a Call Data Channel for the S-SBC

To create a new call data channel:

1. In the SBC Configuration Manager window, navigate to Configuration > Intercept > Call Data Channel. The Call Data Channel window is displayed.

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   0 Figure 1 Call Data Channel for S-SBC

   Info
   title Note:
   You can configure LI using the default Address Context only.

2. Select default from the Address Context drop-down menu.

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   0 Figure 1 Call Data Channel for M-SBC

3. Click New Call Data Channel. The Create New Call Data Channel window is displayed.

4. Specify the following values:

   1. Name: Enter a name for the CDC configuration object.

   2. Intercept Standard: Select packetcable from the drop-down menu.

   3. Vendor ID: Select ss8 from the drop-down menu.

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      0 Figure 1 Create CDC

      Caption
      0 Table 1 Call Data Channel Parameters 3 Parameter Details
      Parameter Description Name Specifies the name of the CDC configuration object. Intercept Standard Specifies the intercept standard to use. Vendor Id Specifies the vendor of the LI server.

5. Click Save. The object is created successfully.

6. Click OK.

7. Click Save at the top of the SBC Configuration Manager window when you have completed making configuration changes. When prompted, confirm that you want to save all your changes and push the configuration to all nodes in the cluster. 

8. Return to the EMS session containing the SBC Configuration Manager for the Head End SBC and click Save and Activate.