网关控制协议:承载层面应用层面网关 |
ITU-T H.248.78建议书定义的程序包能够将媒体网关(MG)收到的运营商级应用协议(如实时流传输协议(RTSP)或消息会话中继协议(MSRP))信息传送至媒体网关控制器(MGC)。这能使MGC行使对信息的网络地址转换等应用级网关功能,然后将信息前转至MG,以发送至目的地。 03/2013修订加入了有关正确引用“消息会话中继协议”的更新。 04/2015 修订增加了一个新的ITU-T H.248包,用于支持: a) 位于MG的应用层网关功能和 b) MG消息回传功能 此外,还将标准从“运营商级应用层网络”更新为“运营商级消息回传和应用层网关”。 |
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Citation: |
https://handle.itu.int/11.1002/1000/12453 |
Series title: |
H series: Audiovisual and multimedia systems H.200-H.499: Infrastructure of audiovisual services H.240-H.259: Communication procedures |
Approval date: |
2015-04-29 |
Provisional name: | H.248.ALG |
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Superseded |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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Title |
Approved on |
Download |
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 |
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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