Hvis denne radiostation ikke kan anvendes, kan fartøjerne anvende andre kommunikationsmidler såsom telex, telefax (20 11 57, 20 19 57, 20 16 84) eller telegram.
Where they cannot communicate this information by radio, vessels may use alternative means, such as telex, telegram or fax (numbers 20 11 57, 20 19 57 and 20 16 84).