What is the correct format for sending TELEX communications to two vessels in the POR, with the first being Inmarsat-C and the second Inmarsat-B?

In the context of sending TELEX communications using the GMDSS (Global Maritime Distress and Safety System), it is essential to adhere to the proper understanding of how to format messages for different vessel communication systems. In this scenario, the correct format provided indicates the use of specific numbering sequences that correspond to the allocated identifiers for Inmarsat-C and Inmarsat-B systems.

The chosen answer reflects the correct numerical identifiers for the two vessels, ensuring that the first communication is directed to the vessel utilizing the Inmarsat-C system, followed by the vessel using the Inmarsat-B system. Each identifier uniquely corresponds to a vessel's communication setup and ensures that the messages are correctly routed through the maritime communication infrastructure.

Correctly identifying the recipients based on the communication system in use is critical for effective maritime operations, particularly under the GMDSS framework where different systems are in play. The proper format guarantees that messages are delivered accurately and efficiently, which is vital for safety and coordination at sea. Understanding these formats and identifiers is an essential skill for those training in GMDSS procedures.