Which of the following is a correctly...

Question 1 of 29218EBAutH58J7l5oyArnsOf

Which of the following is a correctly formatted Inmarsat-C address book entry for sending communications to a fax machine on a vessel’s F77 terminal in the AOR-E?

Back

Question 1 of 29218

Which of the following is a correctly formatted Inmarsat-C address book entry for sending communications to a fax machine on a vessel’s F77 terminal in the AOR-E?

🔍 Key Concepts

• Inmarsat service codes for fax vs telex vs data on F77 terminals • How AOR-E (Atlantic Ocean Region-East) affects the first digits of an Inmarsat number • Difference between Inmarsat BGAN/Fleet (870…) numbers and older Inmarsat codes (starting with 5…)

💭 Think About

• Look at each choice and identify which ones look like general Inmarsat mobile numbers versus special service access codes • Think about what extra digits (after the ocean region/service code) are needed to reach a fax function on a ship’s F77, not just the voice terminal • Compare the length and pattern of each option to a standard format for Inmarsat ship earth station numbers—does anything look too short, too long, or missing a service indicator?

✅ Before You Answer

• Verify which leading digits indicate Inmarsat Atlantic Ocean Region-East (AOR-E) for an F77 terminal • Confirm which service or terminal type uses the 870 country code and which uses numbers starting with 58… • Check that the number pattern includes what is needed to route specifically to a fax machine on the F77, not a voice or data-only service