Language Files
Proceed as follows:
Using the Configuration Manager ( Devices > Voice mail and fax boxes > Basic settings page)
Jointly for all Voice mail and fax boxes
Requirements:
Voice Mail/Fax function (optional, see Activation)
The voice mailboxes' default announcements, and also the spoken user guidance for remote access, are stored in "language files" (for English-language announcements, english.fs is used). Up to four language files can be stored and used simultaneously. This means different languages can be used for different voice mailboxes.
 Import
The language file (*.fs) stored on a (PC) data storage device is selected and imported.
Default language
Unless a different language has been selected for specific voice mailboxes, the selected language is usually used for all voice mailbox announcements.
* Note: The first language imported into the PBX is automatically set as Default language.