Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1
Topic Last Modified: 2007-07-16

Use the New UM IP Gateway Wizard to create a new UM IP gateway for use by Microsoft Exchange Server 2007 Unified Messaging (UM). A UM IP gateway establishes a logical link between the IP gateway device, a UM IP gateway, and single or multiple UM hunt groups.

A UM IP gateway is created by using an organization-wide scope and is a container object that logically represents a physical IP gateway hardware device. Before the IP gateway device can process Unified Messaging calls, the IP gateway must be represented by an object in the Active Directory directory service and then associated with one or more UM dial plans.

After a UM IP gateway is created, you may have to create and associate a UM hunt group with a UM dial plan. For more information about how to create a UM hunt group, see How to Create a New Unified Messaging Hunt Group.

After a UM IP gateway is created, you may also have to enable users for Unified Messaging. For more information about how to enable users for Unified Messaging, see How to Enable a User for Unified Messaging.

New IP Gateway Wizard

To create a new UM IP gateway, in the New UM IP Gateway Wizard, on the New page, complete the following information:

UM IP gateway name   
  • Use this text box to specify a unique name for the UM IP gateway. This is a display name that appears in the Exchange Management Console. If you must change the display name of the UM IP gateway after it has been created, you must first delete the existing UM IP gateway, and then create another UM IP gateway that has the appropriate name. The UM IP gateway name is required, but it is used for display purposes only. Because your organization may use multiple UM IP gateways, we recommend that you use meaningful names for your UM IP gateways. The maximum length of a UM IP gateway is 64 characters, and it can include spaces.

IP Address   
  • Use this text box to enter the IPv4 address for the IP gateway or Session Initiation Protocol (SIP)–enabled Private Branch eXchange (PBX). This is the IP address that is configured on the network or LAN interface of the IP gateway or SIP-enabled PBX. You can change the IP address after the UM IP gateway has been created. 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. This text box will accept only IP addresses that are valid and formatted correctly.

  • This field can accept an IPv6 address; however, IPv6 is not supported in this release of the product.

Fully qualified domain name (FQDN)
  • Use this text box to enter the FQDN for the UM IP gateway. This is the FQDN that is configured on a host record for the UM IP gateway in the DNS forward lookup zone on the authoritative DNS server.

  • This text box will accept only fully qualified domain names (FQDNs) that are valid and formatted correctly.

Dial plan   
  • Click the Browse button to select the UM dial plan that you want to associate with the UM IP gateway. When you select a UM dial plan to associate with a UM IP gateway, a default UM hunt group is also created and associated with the UM dial plan that you selected. If you do not select a UM dial plan, you must manually create a UM hunt group and then associate that UM hunt group with the UM IP gateway that you create. After you associate the UM IP gateway with a UM dial plan, the IP gateway will answer incoming calls.

After you complete the text boxes on this page of the New UM IP Gateway wizard, click New to create the new UM IP gateway.

For More Information

For more information about how to manage UM IP gateways, see Managing Unified Messaging IP Gateways.

For more information about UM IP gateways, see Understanding Unified Messaging IP Gateways.