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ITU-T H.245 (05/2006)

多媒体通信控制协议

本建议书不仅说明了终端信息消息的句法和语义，而且说明了在通信起始或通信期间使用它们作为带内协商的规程。消息不仅包括接收和传输能力，而且也包括来自接收端的通信方式优先级、逻辑信道信令、控制与指示。为确保可靠的视听与数据通信，还详细说明了被普遍认可的信令规程。
服从H.245的第13版的产品声明必须遵从本建议书的所有强制性要求。第13版产品可由包含{itu-t (0) recommendation (0) h (8) 245 version (0) 13}的协议标识符值的H.245 TerminalCapabilitySet 消息标识。
相对于H.245的第12版 (2005-10) ，本建议书的这一版包括：
• 增加了H.361（不含H.mmqos） ASN.1句法和语义；
• 在编辑时对当前的ASN.1做了少许修改，其中包括增加了换行符、制表符以及将看似注释标记的某处换为真正的注释标记；
• 在表J.2的参数名称中删除“TIA/EIA”，在2005年3月已确认这是一个编辑问题。

Citation:	https://handle.itu.int/11.1002/1000/8806
Series title:	H series: Audiovisual and multimedia systems H.200-H.499: Infrastructure of audiovisual services H.240-H.259: Communication procedures
Approval date:	2006-05-29
Approval process:	AAP
Status:	Superseded
Maintenance responsibility:	ITU-T Study Group 16
Further details:	Patent statement(s) Development history [3 related work items in progress]

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
17.1	H.245 v17 (2022) Cor. 1 (12/2022)	In force	here	here	here
17	H.245 v17 (03/2022)	In force	here	here	here
16	H.245 v16 (05/2011)	Superseded	here	here	here
15	H.245 v15 (12/2009)	Superseded	here	here	here
14	H.245 (06/2008)	Superseded	here	here	here
13	H.245 (05/2006)	Superseded	here	here	here
13.0	H.245 (2006) Err. 1 (10/2006)	Superseded	-	-	here
13.0	H.245 (2006) Err. 2 (11/2007)	Superseded	-	-	here
12	H.245 (10/2005)	Superseded	here	here	here
11	H.245 (01/2005)	Superseded	here	here	here
10	H.245 (07/2003)	Superseded	here	here	here
9	H.245 (02/2003)	Superseded	here	-	here
8	H.245 (07/2001)	Superseded	here	here	here
7	H.245 (11/2000)	Superseded	here	here	here
6	H.245 (02/2000)	Superseded	here	here	here
5	H.245 (05/1999)	Superseded	here	here	here
4	H.245 (09/1998)	Superseded	-	-	here
3	H.245 (02/1998)	Superseded	-	-	here
2	H.245 (07/1997)	Superseded	-	here	here
1	H.245 (03/1996)	Superseded	-	-	here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.245 (2006-05)

Index of all ASN.1 assignments defined in this Recommendation.

Click here to download all the modules of this Recommendation (zipped archive)

Click here to download all the modules needed to compile this Recommendation (zipped archive)

Language	Title	OID	Obs.	Last update
ASN.1	MULTIMEDIA-SYSTEM-CONTROL	-

Title	Approved on	Download
Testing of personal audio systems for compliance with ITU-T H.870 (2018)	2024
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.245 (05/2006)