| 网关控制协议：用于ITU-T H.323和ITU-T H.324互作用的ITU-T H.248.1包 |
ITU-T H.248.12建议书定义了计划用于支持 ITU-T H.323和ITU-T H.324终端间互通的媒体网关（MG）的多个ITU-T H.248.1数据包。具体而言，本建议书包括：用于创建支持针对ITU-T H.324呼叫的终接“h324”数据包、用于创建支持ITU-T H.324 呼叫的ITU-T H.245信道终接的“h245”数据包 、用于创建支持针对ITU-T H.323 呼叫的ITU-T H.245 信道终接的“h323bc”数据包、用于在媒体网关控制器（MGC）和MG之间交流ITU-T H.245指令的“h245com”数据包和传输ITU-T H.245指示使用的“h245ind”数据包。本版本是MGC能够在h223Skewindication参数超出一定数值时要求MG提交报告。
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| Citation: |
https://handle.itu.int/11.1002/1000/11539 |
| Series title: |
H series: Audiovisual and multimedia systems
H.200-H.499: Infrastructure of audiovisual services
H.240-H.259: Communication procedures |
| Approval date: |
2012-02-13 |
| Approval process: | AAP |
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Status: |
In force |
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Maintenance responsibility: |
ITU-T Study Group 21 |
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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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| Title |
Approved on |
Download |
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Implementers' Guide for ITU-T H.248 Sub-series
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2017-10-27
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here
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| Title |
Approved on |
Download |
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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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