Receives data from an applet.
Triggers when the following events occur (Scheduled, Rescheduled, Canceled and then Rescheduled, Canceled Reschedule Requested, Canceled, Completed, No Show).
Listens for incoming chat messages.
Sends data to an applet. It can execute a specific applet.
Sends a response to the address from which a message was received.
Sends a one-off message to a chat room.