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ITU-T H.460.22 (04/2015)

为保护 ITU-T H.225.0呼叫信令消息的安全协议协商

ITU-T H.460.22建议书定义了ITU-T H.225.0呼叫信令的安全协商机制。两个实体之间协商的安全机制在启动呼叫建立程序前适用于H.225.0呼叫信令消息。本建议书规定了在H.323系统之间提供必要安全互操作性的详细协商程序，也规定了呼叫信令消息的安全能力参数句法。
本修订澄清了一些程序方面的内容，并增加了对ITU-T H.460.18和ITU-T H.460.19规定的NAT遍历及为ITU-T H.323附件E所述UDP传输协商数据包传输层安全（DTLS）的支持。

Citation:	https://handle.itu.int/11.1002/1000/12456
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:	2015-04-29
Provisional name:	H.460.spn
Approval process:	AAP
Status:	In force
Maintenance responsibility:	ITU-T Study Group 21
Further details:	Patent statement(s) Development history

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
2	H.460.22 (04/2015)	In force	here	here	here
1.1	H.460.22 (2007) Cor. 1 (06/2008)	Superseded	here	-	here
1	H.460.22 (01/2007)	Superseded	here	here	here


ITU-T Supplement	Title	Status	Summary	Table of contents	Download
H Suppl. 6 (04/2006)	Control load quantum for decomposed gateways	In force	here	here	here
H Suppl. 9 (05/2008)	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
H Suppl. 11 (02/2009)	Analysis of class-based home network QoS solutions	In force	here	here	here
H Suppl. 12 (11/2013)	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
H Suppl. 14 (10/2015)	Gateway control protocol: SDP codepoints for gateway control - Release 2	In force	here	here	here
H Suppl. 15 (01/2017)	Conversion and coding practices for HDR/WCG Y'CbCr 4:2:0 video with PQ transfer characteristics	In force	here	here	here
H Suppl. 17 (11/2014)	Guide for addressing accessibility in standards	In force	here	here	here
H Suppl. 18 (10/2017)	Signalling, backward compatibility and display adaptation for HDR/WCG video coding	In force	here	here	here
H Suppl. 19 (04/2021)	Usage of video signal type code points	In force	here	here	here
H Suppl. 21 (01/2025)	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
Testing of personal audio systems for compliance with ITU-T H.870 (2018)	2021	here
Telecommunications Accessibility Checklist	2006	here

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ITU-T Recommendations

ITU-T H.460.22 (04/2015)