Sets an alarm to be session-only. This alarm only exists as long as a session is maintained with the alarm server. Session
alarms are removed from the alarm queue when the originating session disconnects from the server. By default, all alarms are
persistent and remain so, even after the initiating session has disconnected.
Do not display a screen. By default, all alarms result in a suitable screen being displayed, depending on the device. Use
this flag to disable this default behaviour.