The selected language is not used when a user on a localized version of Communications Server 2007 R2 signs in to the dial-in conferencing page by using Integrated Windows Authentication and then selects a language from the drop-down list

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: After you apply this update, the selected language is used.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.