Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1, Exchange Server 2007
Topic Last Modified: 2007-08-20

This topic explains how to use the Exchange Management Console and the Exchange Management Shell to change the IP address on a UM IP gateway in Microsoft Exchange Server 2007 Unified Messaging (UM). When you create a UM IP gateway, you must define the IP address or the fully qualified domain name (FQDN) that is configured on the IP gateway or Session Initiation Protocol (SIP)-enabled IP PBX that you are using. However, you can change the IP address after the UM IP gateway has been created.

The IP address that is configured on the UM IP gateway is the IP address that is configured on the network or LAN interface of the IP gateway or SIP-enabled IP PBX. However, changing this setting may disrupt communication between Unified Messaging servers and the IP gateway or SIP-enabled IP PBX. Modifications to a UM IP gateway should be performed only by an administrator who fully understands the implications of making configuration changes to the UM IP gateway. The IP addresses that you enter must be valid and formatted correctly.

Important:
If you create a UM IP gateway by using a fully qualified domain name (FQDN) and the DNS configuration for the UM IP gateway is changed, you must to 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. You can use the Set-UMIPGateway cmdlet or Exchange Management Console to enable or disable a UM IP gateway.

Before You Begin

To perform the following procedures, the account you use must be delegated the Exchange Organization Administrators role.

For more information about permissions, delegating roles, and the rights that are required to administer Exchange 2007, see Permission Considerations.

Also, before you perform these procedures, confirm the following:

  • A UM dial plan has been created.

  • A UM IP gateway has been created

Procedure

To use the Exchange Management Console to change the IP address for the UM IP gateway

  1. In the console tree of the Exchange Management Console, expand the Organization Configuration node.

  2. Click Unified Messaging.

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

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

  5. On the UM IP gateway Properties page, under IP Address, enter the IP address 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.

  6. Click OK to save your changes.

To use the Exchange Management Shell to change the IP address for the UM IP gateway

  • Run the following command:

    Copy Code 
    Set-UMIPGateway -Identity MyUMIPGateway -Address 10.10.10.1

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

For More Information

For more information about UM IP gateways, see the following topics: