By default, chat uses the configuration files on the Enterprise Server. While this is the recommended configuration, optionally, public-facing chat JavaScript files may be hosted on your corporate web server.
If you do to maintain chat files in your corporate website’s file directory, you must manually update it with new fields and settings after every upgrade and you must enable Web.config to use an externally hosted file.
For information on hosting chat files on your Enterprise Server and referencing hosted chat with Contact Us, consult the version 9.2 Multimedia Contact Center Installation and Deployment Guide available at Mitel-Document Center.