rem: add_system_beep_event(const char *eventName, uint32 flags _BEEP_FLAGS)
add: add_system_beep_event(const char *eventName, uint32 flags)
context: add_system_beep_event(const char *eventName, uint32 flags _BEEP_FLAGS){	// ToDo: ask media server to add beep event	return B_ERROR;}