新附件K“面向媒体的协商加速程序”和对附件J的相应修改 |
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这个新的附件K描述了一个程序,它包含了用于显著减少在H.324呼叫建立过程中的时延的补充方法。它提供了一个快速信道建立机制,在初始媒体传输尝试不成功时,它不等待能力交换,而是要求一个回退。它提供了依靠初始优先选择交换和执行公共推理算法的一个灵活加速信道建立方法。在其他方法不适合的情况下,它提供了一个作为简单和合理快速技术的加速H.245建立方法。与原有终端的互操作在整个程序中也将得到维持。还涉及了在附件J中一些因为这个新的附件K而需要进行的修改。
本版本包括了在附件K中由2007年1月1日通过的H.324勘正2所引入的澄清与修正。这些修正是为了防止从MONA封装媒体到常规(H.223成帧)媒体转换时可能发生的一个问题,如果一个MONA设备可以期望,允许采用受损伤的封装媒体,并且利用MONA优先选择消息多路复用器级别(MONA-ML)来协商对所有MONA对MONA会话的初始多路复用级别。
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Citation: |
https://handle.itu.int/11.1002/1000/8867 |
Series title: |
H series: Audiovisual and multimedia systems H.200-H.499: Infrastructure of audiovisual services H.300-H.349: Systems and terminal equipment for audiovisual services |
Approval date: |
2006-08-22 |
Provisional name: | H.mml |
Approval process: | AAP |
Status: |
Superseded |
Maintenance responsibility: |
ITU-T Study Group 16 |
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
|
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
|
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
|
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
|
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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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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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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AMS Requirements
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2011
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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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