Multilingual User Interface Package for Microsoft Office Communicator 2007 R2
The MUI package for Microsoft Office Communicator 2007 R2 is available as a free download and supports 38 languages. The installation is language-independent, so you do not need to first install the English version as a base, before you can install a MUI pack.
After installation, the user can change the language on demand (Tools—> Options –> General).