Is it possible to run multiple languages on a CUE?
A Cisco Unity Express system can only support one language at a time, so if you install one of the alternate languages (U.S. English is the default), that language replaces the current language on the system.
Language customization in Cisco Unity Express affects the system AA and voice mail prompts. Language customization does not affect the CLI, GUI, custom prompts, user spoken names, or user greetings. The administrative interfaces (CLI and GUI) are always English only. Custom AA prompts, user spoken names, and user greetings can be in any language you like and are not controlled by the language customization of the system.
From this good CUE documentation;
Cisco Unity Express System Design Considerations
You can download additional language pacs from;
Provided you are a registered user with CCO.As far as CUE licensing goes,you can install multiple Language pacs on your system, but only one can be active.Once all the language pacs have been downloaded, you will be given a choice (during the install) of which one you want to use.
Hope this helps!