When using SafetyNETTM for MSI receipt, what is true about Urgency and Distress messages?

The choice indicating that all of these answers are correct accurately summarizes the functionality and requirements of using SafetyNETTM for Maritime Safety Information (MSI) receipt.

When logged in to SafetyNETTM, vessels are able to receive both scheduled MSI messages and unscheduled messages, including those categorized as Urgency and Distress messages. This capability is critical for ensuring that maritime safety remains a top priority, as it allows vessels to be aware of any immediate threats or important information they need to act upon without unnecessary delay.

Moreover, the Enhanced Group Calling capability of the Inmarsat-C Ship Earth Station (SES) plays a vital role in facilitating the reception of MSI. This ensures that vessels can not only receive standard messages but also benefit from a more robust and reliable communication infrastructure that can handle Urgency and Distress messages effectively.

Thus, all the statements presented in the options contribute to a comprehensive understanding of how SafetyNETTM operates in delivering important MSI messages, reinforcing the notion that the selected answer encapsulates the full extent of the messaging capabilities within the SafetyNETTM system.