| ITU-T H.323系统的呼叫保持补充业务 |
此补充业务描述了用于ITU-T H.323（“基于分组的多媒体通信系统”）网络中的呼叫保持补充业务的程序和信令协议。 此修订包含了大量更正和说明性内容，并包含了对ITU-T H.323系列实施者指南（03/2011）的技术和编辑性更正。 |
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| Citation: |
https://handle.itu.int/11.1002/1000/11867 |
| 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: |
2013-03-16 |
| Approval process: | AAP |
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Status: |
In force |
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Maintenance responsibility: |
ITU-T Study Group 16 |
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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
|
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
|
here
|
here
|
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
|
here
|
here
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H Suppl. 11 (02/2009)
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Analysis of class-based home network QoS solutions
|
In force
|
here
|
here
|
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
|
here
|
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
|
In force
|
here
|
here
|
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
|
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
|
here
|
here
|
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
|
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
|
here
|
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
|
here
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H.450.4 (2013-03)
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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 |
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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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Testing of personal audio systems for compliance with ITU-T H.870 (2018)
|
2021
|
here
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Telecommunications Accessibility Checklist
|
2006
|
here
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