The NCS in each ocean region automatically monitors the processing of such calls by other LESs in that region and processes calls if any anomaly exists in the system.

If all satellite channels are busy then one of them will be preempted by a Distress request.

Any Distress request is automatically switched to an Inmarsat Distress working frequency .

Any request message with Distress priority is automatically recognized by the LES and a satellite channel is instantly assigned.