International Maritime Satellite Organization -- An organization created to manage and distribute naval, aeronautical, and mobile land Satellite telecommunications
International Maritime Satellite Organization: Cooperative of more than 50 countries that operates a global system of satellites for mobile communications, such as SATCOM
International Maritime Satellite Organisation Inmarsat operates a satellite network for global trans-mission of all types of global cellular services, including maritime, aeronautical and land-based services
The International Satellite Organisation which operates a network of satellites around the world which you can use to make voice and data call through if you have a satphone For more details
International Maritime Satellite Organization -- international cooperative of more than 50 countries that operates a global system of satellites for mobile communications, such as SATCOM