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                                | Protocole de commande de passerelle: paquetages de routeur IP |  
                                | La Recommandation UIT-T H.248.64 porte sur les passerelles de média UIT-T H.248 avec des modèles de connexion utilisant uniquement des trains/terminaisons UIT-T H.248 de type IP. Elle décrit les différents modes de transmission de paquets IP (sur le trajet support UIT-T H.248). Elle définit en outre un paquetage UIT-T H.248 pour différencier ces modes et les éléments de protocole pour la méthode dite de transmission par routeur IP. D'autres paquetages UIT-T H.248 offrent des capacités de transmission de paquets améliorée pour les services en lien avec la prise en charge d'une traduction d'adresse réseau supplémentaire.Cette révision donne des précisions sur le processus d'acheminement d'un paquet entrant destiné à un contexte/une terminaison/un train UIT-T H.248 afin de maintenir la cohérence avec la Recommandation UIT-T H.248.79.
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                                | Citation: | https://handle.itu.int/11.1002/1000/11833 |  
                                | Series title: | H series: Audiovisual and multimedia systems H.200-H.499: Infrastructure of audiovisual services
 H.240-H.259: Communication procedures
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                                | Approval date: | 2013-03-16 |  | Provisional name: | H.248.ipr |  | Approval process: | AAP |  
                                | Status: | In force |  
                                | Maintenance responsibility: | ITU-T Study Group 21 |  
                                | Further details: | Patent statement(s) Development history
 
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							| ITU-T Supplement | Title | Status | Summary | Table of contents | Download |  
                    | H Suppl. 6 (04/2006) | Control load quantum for decomposed gateways | In force | 
					here | 
					here | here |  
                    | H Suppl. 9 (05/2008) | Gateway control protocol: Operation of H.248 with H.225.0, SIP, and ISUP in support of emergency telecommunications service (ETS)/international emergency preference scheme (IEPS) | In force | 
					here | 
					here | here |  
                    | H Suppl. 11 (02/2009) | Analysis of class-based home network QoS solutions | In force | 
					here | 
					here | here |  
                    | H Suppl. 12 (11/2013) | Gateway control protocol: Priority traffic treatment by ITU-T H.248 gateways | In force | 
					here | 
					here | here |  
                    | H Suppl. 13 (10/2015) | Gateway control protocol: Common ITU-T H.248 terminology - Release 2 | In force | 
					here | 
					here | here |  
                    | H Suppl. 14 (10/2015) | Gateway control protocol: SDP codepoints for gateway control - Release 2 | In force | 
					here | 
					here | here |  
                    | H Suppl. 15 (01/2017) | Conversion and coding practices for HDR/WCG Y'CbCr 4:2:0 video with PQ transfer characteristics | In force | 
					here | 
					here | here |  
                    | H Suppl. 17 (11/2014) | Guide for addressing accessibility in standards | In force | 
					here | 
					here | here |  
                    | H Suppl. 18 (10/2017) | Signalling, backward compatibility and display adaptation for HDR/WCG video coding | In force | 
					here | 
					here | here |  
                    | H Suppl. 19 (04/2021) | Usage of video signal type code points | In force | 
					here | 
					here | here |  
                    | H Suppl. 21 (01/2025) | Film grain synthesis technology for video applications | In force | 
					here | 
					here | here |  
    
    
    
 
						
                                    
    
    
        
            | Title | Approved on | Download |  
                    | Implementers' Guide for ITU-T H.248 Sub-series | 2017-10-27 | here |  
    
    
 
						
                                    
    
    
        
            | Title | Approved on | Download |  
                    | Testing of personal audio systems for compliance with ITU-T H.870 (2018) | 2024 | here |  
                    | Testing of personal audio systems for compliance with ITU-T H.870 (2018) | 2021 | here |  
                    | Telecommunications Accessibility Checklist | 2006 | here |  
    
    
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