Which of the following correctly describes an Inmarsat-C address book entry for fax communications in general?

An Inmarsat-C address book entry for fax communications requires the inclusion of a country code plus the fax number. This ensures that the transmission can be routed correctly through the international telecommunications network, allowing the fax to reach its destination without any dialing errors. The country code indicates the specific country where the fax number is registered, and it is essential for proper routing in global communications.

Including the country code is particularly important since fax numbers can vary significantly in format across different countries. By standardizing the entries to include the country code, it minimizes the risk of miscommunication or failed transmissions, making this a critical requirement for effective fax usage in a satellite communication context. This aligns with international dialing conventions, which often necessitate such formats to ensure successful connectivity.