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ITU-T H.225.0 (2009) Amd. 1 (03/2013)

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利用机能信息实现呼叫转移
ITU-T H.225.0建议书的修正1正式确立了在ITU-T H.323建议书中提出、且已得到广泛实施的呼叫转移机制，此机制依赖于设施（Facility）消息，并将原因设置为“callForwarded”。

Citation:	https://handle.itu.int/11.1002/1000/11859
Series title:	H series: Audiovisual and multimedia systems H.200-H.499: Infrastructure of audiovisual services H.220-H.229: Transmission multiplexing and synchronization
Approval date:	2013-03-16
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Status:	Superseded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]

EditionsRelated Supplement(s)Related technical papers and reports

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
8	H.225.0 (V8) (03/2022)	In force	here	here	here
7.1	H.225.0 (2009) Amd. 1 (03/2013)	Superseded	here	-	here
7	H.225.0 (12/2009)	Superseded	here	here	here
6.1	H.225.0 (2006) Amd. 1 (01/2007)	Superseded	here	here	here
6	H.225.0 (05/2006)	Superseded	here	here	here
5	H.225.0 (07/2003)	Superseded	here	here	here
4.1	H.225.0 (2000) Amd. 1 (11/2002)	Superseded	here	here	here
4	H.225.0 (11/2000)	Superseded	here	here	here
3	H.225.0 (09/1999)	Superseded	-	-	here
2.2	H.225.0 Annex G (05/1999)	Superseded	-	-	here
2.1	H.225.0 Annex I (09/1998)	Superseded	-	here	here
2	H.225.0 (02/1998)	Superseded	-	-	here
1	H.225.0 (11/1996)	Superseded	-	-	here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

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