Mechanism
The administrator can upload an XML file named g3-tones.xml that describes the tones and cadences to the directory on the Cisco Unified Communications Manager TFTP server. The directory name is actually a locale name, such as Australia.
During provisioning, the device knows the network locale setting and tries to download [locale name]/g3-tones.xml from the Cisco Unified CM TFTP server. For example, if the network locale is set to Australia, the path is Australia/g3-tones.xml.