If you are south of the Hawaiian Islands and wish to communicate by voice with another ship 200 miles due west of Lands End, UK. What is the proper procedure?

Correct Answer: Option A — 001# 00871336670492#

To call another ship, the operator uses the CES access code (001 for Southbury) followed by the Inmarsat ocean region code and the mobile earth station number. The 871 prefix denotes the Atlantic Ocean Region-East, ensuring the call is routed correctly through the satellite network to the target vessel.