Organization Configuration > Unified Messaging > UM IP Gateways

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Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1

Use the Unified Messaging (UM) UM IP Gateway tab to create and maintain IP gateways for your Unified Messaging configuration. UM IP gateways are created in Active Directory to represent a Voice over Internet Protocol (VoIP) gateway device. UM IP gateways are created in an enabled state. A UM IP gateway establishes a logical link between the IP gateway, the UM dial plan, and a single or multiple UM hunt groups.

Before the IP gateway can process calls, it must be represented by a UM IP gateway. You must then associate the UM IP gateway with a UM dial plan. You can associate a UM IP gateway with one or more UM dial plans by creating one or more UM hunt groups. For more information about Unified Messaging IP gateways, see Understanding Unified Messaging IP Gateways.

The result pane enables you to view a subset of properties for a UM IP gateway. This includes the name, associated dial plan, and its status.

  • Name
    This column in the result pane lets you view the display name for UM IP gateways that have been created. If your organization uses multiple UM IP gateways, you should use meaningful names for the UM IP gateways. The maximum length for a display name is 64 characters and it can contain spaces.
  • UM Dial Plans
    This column in the result pane lets you view the UM dial plans that are associated with the UM IP gateways that have been created. After you create a dial plan, you must create a UM IP gateway and associate it with a UM dial plan. After the UM IP gateway is created, the dial plan that is associated with the UM IP gateway cannot be changed. If you need to associate a UM IP gateway with a different dial plan, you must delete the UM IP gateway and then associate it with the correct dial plan after you re-create it.
  • Pilot Identifier
    This column in the result pane lets you view the pilot numbers that are configured on the UM IP gateway. The pilot identifier or pilot ID is configured on the UM hunt group when it is created. You cannot change the pilot ID after the UM hunt group is created. You must delete the UM hunt group, and then re-create the UM hunt group to include the correct pilot ID.
  • Address
    This column in the result pane lets you view the IP address that is configured on each IP gateway or Session Initiation Protocol (SIP)-enabled IP PBX. By viewing the properties for a UM IP gateway, you can change the IP address of the UM IP gateway if the IP address of the IP gateway has changed.
  • Status
    This column in the result pane lets you view the status of the UM IP gateway and whether each UM IP gateway is enabled or disabled. If the UM IP gateway is disabled, UM servers that are associated with the UM dial plan will not receive incoming calls from the IP gateway.
  • Outgoing Calls Allowed
    This column in the result pane lets you enable or disable outgoing calls. This setting can be disabled if you do not want users who are associated with the UM dial plan to place outgoing calls through the UM IP gateway.
  • New Hunt group
    You can use the action pane to start the New UM Hunt Group Wizard. Use this task to create a new UM hunt group that will be associated with a UM IP gateway. A UM hunt group is used to forward incoming calls to a specific UM dial plan.
  • Disable after completing calls
    You can use the action pane to force the UM server that is associated with the UM IP gateway to stop handling new calls that are presented by the IP gateway.
  • Disable immediately
    You can use the action pane to force all associated UM servers to drop existing calls that are being processed.
  • Properties
    You can use the action pane to view the properties of a UM IP gateway or change the UM IP gateway configuration. You can also right-click the UM IP gateway, and then select Properties from the list of available options.

After you install the Unified Messaging server role on a server that is running Microsoft Exchange Server 2007, you must create, configure, and manage at least one dial plan. After you create a UM auto attendant, you may also need to perform one of the following tasks:

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