What is INMARSAT A?

What is INMARSAT A?

• A. Telephone, FAX, TELEX service
• B. Secure telephone data, Video Teleconferencing
• C. Two way Messaging
• D. Telephone with voicemail

Answer: (A)

INMARSAT A refers to the satellite service that historically offered basic telecommunications over the satellite link, specifically voice telephone, facsimile (FAX), and TELEX. This mix of traditional voice and early data modes was the defining package of Inmarsat A, making it the best description among the options. The other capabilities described—secure data or video conferencing, two-way messaging, or voicemail-focused telephone service—fit other, newer or different satellite services rather than the classic Inmarsat A offering.

INMARSAT A refers to the satellite service that historically offered basic telecommunications over the satellite link, specifically voice telephone, facsimile (FAX), and TELEX. This mix of traditional voice and early data modes was the defining package of Inmarsat A, making it the best description among the options. The other capabilities described—secure data or video conferencing, two-way messaging, or voicemail-focused telephone service—fit other, newer or different satellite services rather than the classic Inmarsat A offering.