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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. Distributed SBC instances are registered dynamically in the EMS.

Prerequisites

To configure the CDC for an 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) DeploymentRedundancy Operations on OpenStack.
• Ensure that basic S-SBC configuration is completed as in S-SBC Cluster Configuration using SBC Configuration Manager.
• 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 S-SBC Nodes

To configure a cluster CDC for S-SBC nodes:

1. Log into the EMS as an admin user.

2. Click Network > Cluster Management. The Cluster Management / Manage VNFs window opens listing the SBC clusters created on the EMS.

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   0 Figure 1 EMS Cluster/VNF List
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3. Click the radio button adjacent to the name of the cluster you want to configure. The Details tab for the selected cluster opens by default. 

4. Click the Configurations tab. 

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   0 Figure 1 Cluster Configurations Tab
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5. Click Edit Configuration. The SBC Configuration Manager opens in a separate window against the cluster's active OAM node.
6. Launch another EMS session as the CALEA user.
7. Under Monitoring, click Lawful Intercept. The Lawful Intercept window is displayed.

8. Click Cluster CDC. The Lawful Intercept/Cluster CDC window is displayed.

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   0 Figure 1 Lawful Intercept/Cluster CDC
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9. Select the S-SBC cluster.

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

11. Create a call data channel as described in the following procedure.

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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
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   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
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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
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      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 Close at the top-right of the SBC Configuration Manager window.

8. Return to the EMS session containing the SBC Configuration Manager for the OAM node and click Apply Saved Changes and Close.

9.  When prompted, confirm that you want to save and activate your configuration changes.