CONTENTS

 1     Objective and scope
 2     Related Recommendations
 3     Definitions
 4     Abbreviations
 5     Satellite-based systems
        5.1     Reference architecture
                  5.1.1     Reference architecture for interconnection of Maritime/Aeronautical Domain and the Fixed Domain
        5.2     Types of connections
        5.3     Reference connections
                  5.3.1     Reference connection for maritime user to land user
                  5.3.2     Reference connection for maritime user to maritime user
                  5.3.3     Reference connection for aeronautical user to land user
 6     Terrestrial based systems
 7     History
Appendix I - Example implementations (Inmarsat systems)
        I.1     General
        I.2     Abbreviations
        I.3     Architecture
                  I.3.1     Architecture for intercommunication between Maritime Inmarsat-A system and fixed domain
                  I.3.2     Architecture for intercommunication between Inmarsat Aeronautical System Aircraft Earth Stations (Inmarsat-Aero) and fixed domain
                  I.3.3     Architecture for intercommunication between Maritime Inmarsat-M system and fixed domain
                  I.3.4     Architecture for intercommunication between maritime Inmarsat-B system and fixed domain
        I.4     Remarks