Article ID: 968946 - View products that this article applies to.
A user on a localized version of Microsoft Office Communications Server 2007 R2 signs in to the dial-in conferencing page by using Integrated Windows Authentication. When the user selects a different language from the drop-down list, that language is not used.
To resolve this issue, apply the following update:
967836After you apply this update, the selected language is used.
(http://support.microsoft.com/kb/967836/ )Description of the update package for Communications Server 2007 R2, Communicator Web Access: April 2009
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.