CONTENTS

 

 1     Scope 
 2     References 
 3     Definitions  
 4     Abbreviations and acronyms        
 5     Network conditions         
        5.1     Introduction           
        5.2     Constitution of a control association           
        5.3     IP-based H.248 transport  
        5.4     Relation between the address of an H.248 entity and an H.248 message identifier   
        5.5     MG database for MGC entries      
        5.6     Dedicated network applications     
 6     Procedures for IP-based H.248 control associations        
        6.1     Starting point         
        6.2     Control association establishment   
        6.3     Control association refreshment      
 7     Procedures for non-IP-based H.248 control associations 
 8     H.248 control association: summary of scenarios with usage of ServiceChangeMgcID parameter     
        8.1     Case a): Restart request (Initial registration)
        8.2     Case b): Handoff request   
        8.3     Case c): Failover request   
        8.4     Case d): Disconnected H.248 control association renewal request  
        8.5     Case e): Forced H.248 control association closure request 
        8.6     Case f): Graceful H.248 control association release request
 9     H.248 control association: impact of protocol version changes and/or profile changes on established control associations     
10     H.248 control association: Impact of transport mode changes      
       10.1     Situation of transport mode changes          
       10.2     Impact on established control associations 
       10.3     Relation between profile and transport modes        
       10.4     Indication of transport mode         
11     H.248 control association: registration of multi-mode transport capable media gateways   
       11.1     Variant A: single-mode transport capable MGC    
       11.2     Variant B: multi-mode transport capable MGC, prepared to serve all transport modes       
       11.3     Variant C: multi-mode transport capable MGC, not prepared to serve all transport modes     
12     H.248 control association: policing of incoming H.248 messages  
       12.1     Overview 
       12.2     Principal filter stages         
       12.3     MID Policing: filter rules, dependent on MID format and provisioned information