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Define a SIP/CSTA gateway IP address in Lync Server 2013

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Topic Last Modified: 2012-09-21

If Lync Server will connect to the SIP/CSTA gateway that you deployed for remote call control by using a Transmission Control Protocol (TCP) connection, then you must define the IP address of the gateway in Topology Builder. This step is not necessary for gateways that support Transport Layer Security (TLS) connections. For any gateway that supports TLS connections, you can skip this procedure and continue deployment of remote call control by following the steps in Enable Lync users for remote call control in Lync Server 2013.

To define the SIP/CSTA gateway IP address by using Topology Builder

  1. Log on to the computer where Topology Builder is installed as a member of the Domain Admins group and the RTCUniversalServerAdmins group.

  2. Start Topology Builder: Click Start, click All Programs, click Microsoft Lync Server 2013, and then click Lync Server Topology Builder.

  3. Choose the option to download an existing topology.

  4. Expand the Trusted application servers node.

  5. Right-click the trusted application pool that you created, as described in Configure a trusted application entry for remote call control in Lync Server 2013, and then click Edit Properties.

  6. Clear the Enable replication of configuration data to this pool check box.

  7. Click Limit service usage to selected IP addresses. The default setting is Use all configured IP addresses.

  8. In the Primary IP address text box, enter the IP address of the SIP/CSTA gateway.

  9. To update the topology in the Central Management store, in the console tree, click Lync Server, and then, from the Actions pane, click Publish.