| ITU-T H.460.24附件B的支撑 |
ITU-T H.460.23建议书令位于NAT/FW设备后面的ITU-T H.323端点得以向关守报告NAT/FW特性。在与ITU-T H.460.24建议书共同使用时，关守可利用NAT/FW信息就怎样在两个设备之间实现媒体流动做出决定。在多数情况下，遵循这些程序将令关守不再需要ITU-T H.460.19建议书中所述的媒体代理，因为媒体可在单独的NAT/FW设备后面的两个端点之间成功进行直传。修正1令两个端点得以向关守宣传其对H.460.24附件B的支持能力（见H.460.24建议书的修正1）。 |
|
| Citation: |
https://handle.itu.int/11.1002/1000/11304 |
| 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: |
2011-05-14 |
| Approval process: | AAP |
|
Status: |
In force |
|
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
|
Title
|
Status
|
Summary
|
Table of contents
|
Download
|
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H Suppl. 6 (04/2006)
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Control load quantum for decomposed gateways
|
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)
|
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
|
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
|
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H Suppl. 14 (10/2015)
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Gateway control protocol: SDP codepoints for gateway control - Release 2
|
In force
|
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
|
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
|
here
|
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
|
In force
|
here
|
here
|
here
|
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H Suppl. 19 (04/2021)
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Usage of video signal type code points
|
In force
|
here
|
here
|
here
|
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H Suppl. 21 (01/2025)
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Film grain synthesis technology for video applications
|
In force
|
here
|
here
|
here
|
| Title |
Approved on |
Download |
|
Testing of personal audio systems for compliance with ITU-T H.870 (2018)
|
2024
|
here
|
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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
|
|
