3.2.4 Higher-Layer Triggered Events
The following are events that can be triggered by a higher level:
Shutdown Request: The higher level can initiate a shutdown for the voice session. This will cause a Session Lost Message (section 2.2.2.1) to be sent to all voice clients if host migration is disabled. If host migration is enabled as described in section 1.3.3.1, then this will cause a Voice Server Exited with Host Migration (section 2.2.4.5.1). It is also possible to disable host migration before shutdown to cause a voice session to stop without migrating the host.
Change Voice Client List: The higher level can modify the Current Voice Target List for a specific voice client if Server Controlled Targeting is enabled. This will trigger a Set Client Voice Target Message (section 2.2.2.5) to be sent to the voice client.