CONTENTS

 1     Introduction      
 2     Scope 
 3     Purpose     
 4     References 
        4.1     ITU-T Recommendations  
        4.2     Other referenced documents          
 5     Charging, billing, accounting and settlement           
        5.1     Relationship between a GMPCS system and a terrestrial network   
                  5.1.1     A direct call from a terrestrial network to a GMPCS system          
                  5.1.2     A transit call from a terrestrial network to a GMPCS system          
                  5.1.3     A direct call from a GMPCS system to a terrestrial network          
                  5.1.4     A transit call from a GMPCS system to a terrestrial network          
        5.2     Relationship between two GMPCS systems           
                  5.2.1     Direct call between two users of two different GMPCS systems    
                  5.2.2     Transit call between two users of two different GMPCS systems   
 6     Recommendations           
 7     Roles and responsibilities 
 8     Using GMPCS in different countries         
 9     Roaming    
10     Exchange of traffic data   
Appendix I – Examples of possible call scenarios (for information purposes only)    
        I.1     National call between a terrestrial terminal and a local mobile-satellite terminal with a local gateway    
        I.2     National call between a terrestrial terminal and a visiting mobile-satellite terminal with a local gateway    
        I.3     National call between a terrestrial terminal and a local mobile-satellite terminal with a remote gateway    
        I.4     National call between a terrestrial terminal and a visiting mobile-satellite terminal with a remote gateway    
        I.5     Calls between two local mobile-satellite terminals    
        I.6     National call between a local mobile-satellite terminal and a visiting mobile-satellite terminal    
        I.7     National call between two visiting mobile-satellite terminals  
        I.8     External call between a terrestrial terminal and a local mobile-satellite terminal with a local gateway in the terrestrial terminal's area    
        I.9     External call from a terrestrial terminal to a visiting mobile-satellite terminal, with a local gateway in the terrestrial terminal's area    
       I.10     External call between a terrestrial terminal and a local mobile-satellite terminal, when the Gateway serving the country in which the terrestrial terminal is located is outside that country    
       I.11     External call between a terrestrial terminal and a visiting mobile-satellite terminal, when the gateway serving the country in which the terrestrial terminal is located is outside that country    
       I.12     External call between two local mobiles      
       I.13     External call between a local mobile and a visiting mobile, with local or remote gateways    
       I.14     External call between two visiting mobile-satellite terminals