The sipX PBX users interface (sipXconfig) can easily be localized to different languages using a plugin framework. No programming is required since all language specific elements are separated out into .properties files. These .properties files include keywords with the respective string for a particular language. Adding a language means adding a set of ,properties files. The language is then selected by the browser's locale. Or in other words, if your browser is set to let's say German, and if there are *_de.properties files included with sipXconfig, then automatically the German user interface will display.