Note that this process causes the voicemail service to restart, ending all calls currently being handled by the voicemail service.
Procedure
Access the server's web control/platform view menus.
Select Settings > General.
In the Software Repositories section, click on the Browse button for Application. Browse to and select the RPM file for the required language and click OK.
Click Add.
Select Updates.
In the Services section, locate the newly added TTS language and click Install.