Désignation de la priorité des appels H.323 |
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Il y a de nombreuses situations dans lesquelles il est souhaitable de pouvoir bénéficier de services d'appel ayant un niveau de priorité supérieur à la normale. Il s'agit par exemple d'appels effectués par du personnel de secours habilité dans les situations d'aide en cas de catastrophe, d'appels courants à des services de secours ou d'appels régis par des accords de niveau de service spécifiant une probabilité d'aboutissement de l'appel supérieure à la normale. Il convient dès lors de signaler à des éléments de réseau tels que portiers, éléments frontières et passerelles qu'un appel donné nécessite un traitement prioritaire. La présente Recommandation définit les messages et procédures nécessaires pour signaler le niveau de priorité souhaité d'un appel H.323. |
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Citation: |
https://handle.itu.int/11.1002/1000/6166 |
Series title: |
H series: Audiovisual and multimedia systems H.200-H.499: Infrastructure of audiovisual services H.450-H.499: Supplementary services for multimedia |
Approval date: |
2002-11-29 |
Provisional name: | H.gef.4 |
Approval process: | AAP |
Status: |
Superseded |
Maintenance responsibility: |
ITU-T Study Group 21 |
Further details: |
Patent statement(s)
Development history
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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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H Suppl. 6 (04/2006)
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Control load quantum for decomposed gateways
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In force
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here
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here
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here
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H Suppl. 9 (05/2008)
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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)
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In force
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here
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here
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here
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H Suppl. 11 (02/2009)
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Analysis of class-based home network QoS solutions
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In force
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here
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here
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here
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H Suppl. 12 (11/2013)
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Gateway control protocol: Priority traffic treatment by ITU-T H.248 gateways
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In force
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here
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here
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here
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H Suppl. 13 (10/2015)
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Gateway control protocol: Common ITU-T H.248 terminology - Release 2
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In force
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here
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here
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here
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H Suppl. 14 (10/2015)
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Gateway control protocol: SDP codepoints for gateway control - Release 2
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In force
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here
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here
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here
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H Suppl. 15 (01/2017)
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Conversion and coding practices for HDR/WCG Y'CbCr 4:2:0 video with PQ transfer characteristics
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In force
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here
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here
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here
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H Suppl. 17 (11/2014)
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Guide for addressing accessibility in standards
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In force
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here
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here
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here
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H Suppl. 18 (10/2017)
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Signalling, backward compatibility and display adaptation for HDR/WCG video coding
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In force
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here
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here
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here
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H Suppl. 19 (04/2021)
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Usage of video signal type code points
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In force
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here
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here
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here
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H Suppl. 21 (01/2025)
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Film grain synthesis technology for video applications
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In force
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here
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here
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here
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H.460.4 (2002-11)
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Index of all ASN.1 assignments defined in this Recommendation.
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Click
here
to download all the modules of this Recommendation (zipped archive)
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Click here to download all the modules needed to compile this Recommendation (zipped archive)
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Title |
Approved on |
Download |
Testing of personal audio systems for compliance with ITU-T H.870 (2018)
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2024
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here
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Testing of personal audio systems for compliance with ITU-T H.870 (2018)
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2021
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here
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Telecommunications Accessibility Checklist
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2006
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here
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