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Configure a Fully Qualified Domain Name for a UM IP Gateway

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Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2

You can configure a Unified Messaging (UM) IP gateway with either an IP address or an FQDN. You can enter the FQDN for the UM IP gateway or SIP-enabled IP PBX. When you create a UM IP gateway, you must define the IP address or the fully qualified domain name (FQDN) configured on the IP gateway or Session Initiation Protocol (SIP)-enabled IP Private Branch eXchange (PBX) that you're using. However, you can change the IP address or FQDN after the UM IP gateway is created.

If you want to use mutual Transport Layer Security (mutual TLS) between a UM IP gateway and a dial plan operating in either SIP secured or Secured mode, you must configure the UM IP gateway with an FQDN. You must also configure it to listen on port 5061 and verify that any IP gateways or IP PBXs have also been configured to listen for mutual TLS requests on port 5061. To configure a UM IP gateway, run the following command: Set-UMIPGateway -identity MyUMIPGateway -Port 5061.

Important

If you create a UM IP gateway using an FQDN, and the DNS configuration for the UM IP gateway is changed, you must disable and then enable the UM IP gateway to make sure that the UM IP gateway's configuration information is updated correctly in the Active Directory directory service.

Looking for other management tasks related to UM IP gateways? Check out Managing UM IP Gateways.

Prerequisites

Use the EMC to configure a FQDN

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "UM IP gateways" entry in the Unified Messaging Permissions topic.

  1. In the console tree, navigate to Organization Configuration > Unified Messaging.

  2. In the work pane, click the UM IP Gateways tab.

  3. Select the UM IP gateway that you want to modify, and then in the action pane, click Properties.

  4. On the UM IP gateway Properties page, under Fully qualified domain name (FQDN), enter the FQDN for the IP gateway or IP PBX.

    Note

    If you use an FQDN instead of an IP address on the UM IP gateway, verify that the correct DNS records have been created.

  5. Click OK to save your changes.

Use the Shell to configure a FQDN

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "UM IP gateways" entry in the Unified Messaging Permissions topic.

This example configures a UM IP gateway named MyUMIPGateway with a FQDN of Contoso.com.

Set-UMIPGateway -Identity MyUMIPGateway -Address Contoso.com

This example configures a UM IP gateway named MyUMIPGateway with FQDN of Contoso.com and listens for SIP requests on TCP port 5061.

Set-UMIPGateway -Identity MyUMIPGateway -Address Contoso.com -Port 5061

For more information about syntax and parameters, see Set-UMIPGateway.

Other Tasks

After you configured a FQDN on a UM IP gateway, you may also want to:

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