Applies to: Exchange Server 2007
Topic Last Modified: 2007-06-12

Use the UM Server Configuration tab to view and configure settings for the Unified Messaging (UM) server. For example, you can add or remove the UM dial plans that are associated with the UM server or view the languages that are supported by the UM server.

After the Unified Messaging server role has been installed on a computer that is running Microsoft Exchange Server 2007, you can change UM server-specific settings. The settings that you modify apply only to the local UM server. When you modify the settings found on the UM server, those modifications are applied immediately after you click Accept.

Use this page to configure the following settings for a UM server:

Associated Dial Plans
  • Use this text box to view the UM dial plans that are associated with the UM server.

  • When you install the Unified Messaging server role on a computer that is running Exchange 2007, the server is left in an enabled state. However, for the Unified Messaging server to answer and process incoming calls, you must also associate a UM dial plan with the UM server.

  • An Exchange 2007 Unified Messaging server can be associated with multiple UM dial plans at the same time. After you associate the UM server with a UM dial plan, the UM server will process incoming calls for users who are associated with the UM dial plan.

  • Modifications to the UM dial plans that are associated with the UM server should be performed only by an administrator who fully understands the implications of making configuration changes to the UM server.

Prompt languages
  • Use this text box to view the languages that are supported by the Unified Messaging server. The languages that are listed in this text box are the languages or language packs that are installed on the UM server.

  • For example, in the US-English release of Exchange 2007, US-English is the only language installed on the UM server. However, in the French release of Exchange 2007, French and US-English are the languages available by default.

  • If you want to install additional languages, you can install them on the UM server by running the Setup.com /AddUMLanguagePack command.

  • After the language pack is installed on the UM server, the UM server supports the additional languages. The language packs are located in the <dvdroot>\UMLang\<language> folder on the Exchange 2007 installation DVD.

Maximum concurrent calls
  • Use this text box to specify the number of concurrent incoming voice call connections that the Unified Messaging server will accept.

  • When you increase the number of concurrent connections on a UM server, more system resources are required than if you decrease the number of concurrent voice call connections. Decreasing this setting is especially important on low-end, slower computers on which Unified Messaging is installed.

  • The range for this setting is 0 to 200. The default setting is 100. There are performance counters that you can use to monitor the current number of voice calls that are connected to a UM server.

Maximum concurrent fax calls
  • Use this text box to specify the maximum number of fax connections that the Unified Messaging server will accept.

  • When you increase the number of concurrent fax connections on a UM server, more system resources are required than if you decrease the number of concurrent connections. Decreasing this setting is especially important on low-end, slower computers on which Unified Messaging is installed.

  • The range for this setting is 0 to 200. The default setting is 100. There are performance counters that you can use to monitor the current number of fax calls that are connected to a UM server.

After you modify the settings on this page, click Apply to accept the changes.