CONTENTS

 1     Scope 
 2     References
 3     Definitions
 4     Abbreviations 
 5     General     
        5.1     Master-slave determination          
        5.2     Capability exchange         
        5.3     Logical channel signalling procedures     
        5.4     Receive terminal close logical channel request   
        5.5     H.223 multiplex table entry modification 
        5.6     Audiovisual and data mode request         
        5.7     Round-trip delay determination    
        5.8     Maintenance loops           
        5.9     Commands and indications           
Annex A – Messages: Syntax    
Annex B – Messages: Semantic definitions    
        B.1     Master-Slave Determination messages    
        B.2     Terminal capability messages     
        B.3     Logical channel signalling messages       
        B.4     Multiplex Table signalling messages       
        B.5     Request Multiplex Table signalling messages     
        B.6     Request Mode messages  
        B.7     Round-trip Delay messages         
        B.8     Maintenance Loop messages       
        B.9     Communication Mode Messages 
       B.10     Conference Request and Response Messages     
       B.11     Multilink Messages        
       B.12     Logical Channel Bit rate Change Messages        
       B.13     Commands          
       B.14     Indications          
       B.15     Generic messages           
Annex C – Procedures    
        C.1     Introduction         
        C.2     Master-slave determination procedures  
        C.3     Capability exchange procedures  
        C.4     Unidirectional Logical Channel signalling procedures    
        C.5     Bidirectional Logical Channel signalling procedures      
        C.6     Close Logical Channel procedures          
        C.7     H.223 Multiplex Table Procedures         
        C.8     Request Multiplex Entry procedures       
        C.9     Mode Request procedures           
       C.10     Round-trip delay procedures      
       C.11     Maintenance Loop procedures    
Annex D – Object identifier assignments    
Annex E – ISO/IEC 14496-2 Capability Definitions    
Annex F – Logical Channel Bit-Rate Management Capability Definitions    
Annex G – ISO/IEC 14496-1 Capability Definitions    
        G.1     Capability Identifier        
        G.2     Capability parameters used for capability negotiations and logical channel signalling   
        G.3     Capability parameters used for logical channel signalling only  
Annex H – ISO/IEC 14496-3 Capability Definitions    
Annex I – GSM Adaptive Multi-Rate Capability Definitions    
        I.1        Definition of mode signalling and bit stuffing to achieve octet alignment           
Annex J – TDMA ACELP Voice Codec Definitions    
Annex K – TDMA US1 Voice Codec Definitions    
Annex L – CDMA EVRC Voice Codec Definitions    
Annex M – ISO/IEC 13818-7 and ITU-R BS.1196 Definitions    
Annex N – RFC 3389 – RTP Payload for Comfort Noise    
Annex O – L16 Capability Identifier    
Annex P – Bounded audio stream capability    
Annex Q – Generic Capability for Nx64K Circuit Relay over IP    
        Q.1     Introduction         
        Q.2     Description          
Annex R – Adaptive Multi-Rate Capability Definitions    
        R.1     Introduction         
        R.2     Description          
Annex S – Internet Low Bit Rate Codec (iLBC) Capability Definitions    
        S.1     Introduction          
        S.2     Description          
Appendix I – Overview of ASN.1 syntax    
        I.1        Introduction to ASN.1    
        I.2        Basic ASN.1 data types  
        I.3        Aggregate data types      
        I.4        Object identifier type     
Appendix II – Examples of H.245 procedures    
       II.1     Introduction           
       II.2     Master-slave Determination Signalling Entity      
       II.3     Capability Exchange Signalling Entity      
       II.4     Logical Channel Signalling Entity 
       II.5     Close Logical Channel Signalling Entity  
       II.6     Multiplex Table Signalling Entity 
       II.7     Mode Request Signalling Entity    
       II.8     Round-trip Delay Signalling Entity           
       II.9     Bidirectional Logical Channel Signalling Entity   
Appendix III – Summary of procedure timers and counters    
      III.1     Timers   
      III.2     Counters
Appendix IV – H.245 extension procedure    
Appendix V – The replacementFor procedure    
Appendix VI – Examples of H.263 Capability Structure Settings    
       VI.1     Examples of Enhancement Layer H.245 parameter setting          
       VI.2     Examples of Video Back Channel H.245 parameter setting        
Appendix VII – Procedure and template for defining new capabilities with H.245 generic capabilities    
      VII.1     Procedure
      VII.2     Template 
      VII.3     Example Template – H.261         
Appendix VIII – List of generic capabilities and generic messages defined in Recommendations/Standards other than this Recommendation    
Appendix IX – ASN.1 usage in this Recommendation    
       IX.1     Tagging
       IX.2     Types   
       IX.3     Constraints and Ranges   
       IX.4     Extensibility        
Appendix X – Resolution of unidirectional and bidirectional conflict scenarios    
        X.1     Both terminals use bidirectional OLC     
        X.2     Master proposes bidirectional OLC and slave proposes unidirectional OLC     
        X.3     Master proposes unidirectional OLC and slave proposes bidirectional OLC     
        X.4     Master proposes bidirectional OLC with nullData and slave proposes unidirectional OLC    
        X.5     Both terminals propose bidirectional OLC with nullData