What is the Inmarsat-B Service Code for automatic service?
Official USCG Answer & Rule Citation
Correct Answer: Option D — 00
Service code 00 is the standard Inmarsat-B designation for automatic service. This code instructs the Land Earth Station to process the call or message without manual intervention from an operator, facilitating direct, automated connectivity to the public switched telephone or TELEX network for efficient maritime communications.
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