When you use the UM functionality from Exchange 2007 only the English language pack will be installed by default.

But there are many more UM language packs for example Dutch.

In this tutorial I will describe how you can add and configure the Dutch language pack.

First thing to do is to download the language pack, a complete overview can be found on the following  site.

When the language pack is downloaded we can start installing it. This can be done by executing the following command:

setup.com /AddUmLanguagePack:nl-NL /sourcedir:d:\Downloads\UmLanguagePacks
  • setup.comcan be foud in the Exchange install directory, when you have installed SP1 you need to use the setup.com of SP1.
  • the next parameter is AddUmLanguagePack:nl-NLwith this one we tell the setup that we want to install the Dutch language pack. If you want to install German for example then we need to type de-DE, the question is how can you discover this ? The file name of the download has the following syntax umlang-en-AU the last piece of the file name is the piece we need as the parameter to install the language pack.
  • the last parameter is used to give the directory where the MSI is located in this case  d:\Download\UMLanguagePacks.

When the command is executed you will get the following result:


It can take a few minutes before the language pack is installed. When the installation is completed you can start the Exchange Management Console.

Open Organization Configuration -> Unified Messaging

The first thing we need to modify is the dialplan , with this setting we modify the default language for the Subscriber Access. Users can change this via the OWA if they want another language.

Select the UM Dial Plans tab en get the properties of the dialplan. A new window will be opened with a few tabs, choose the tab Settings.

As you can see in the screenshot above the default language is English (United States) . When you click on the arrow you will get a complete overview of all installed languages.

When you don’t have this options, check if the dialplan  is assigned to the Exchange server. You can check this by looking at the Associated UM Servers column. When this is not configured OK you can’t view the installed language.

Select Dutch (Netherlands) from the list to set Dutch as the default language for the Subscriber Access and click OK.

The Subscriber Access is modified, when you use auto attendants you need to modify them also. This can be done via the following steps.

Click on the tab UM AutoAttendants and get the properties of the auto attendant that you want to modify.


A new windows will be opened, click on the tab Features en select the language you want to use.

Earlier we spoke about the option that users can change their default language.  This can be done via the OWA.

Let the user login to OWA and select options in the left menu. Next select Regional settings and let the user choose their default language. The list that is displayed to the user is longer then the installed language packs. It can happen that the user selects a language which is not installed which cause that the user will not hear the language he expects.


Johan Veldhuis