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ITU-T T.38 (09/2005)

IP网络上三类传真实时传送通信规程

本建议书规定除了PSTN或ISDN外，在终端之间使用的部分传输路径中包含IP网络（如互联网），允许三类传真在终端之间进行传输所使用的规程。
T.38 的本次修订版在附件B中规定：对于不支持H.245的T.38设备，在H.323呼叫建立期间h245Tunnelling 标志的使用；在附录III中对H.248 呼叫建立的程序实例中的差错进行更正。

Citation:	https://handle.itu.int/11.1002/1000/8559
Series title:	T series: Terminals for telematic services T.30-T.39: Facsimile – Group 3 protocols
Approval date:	2005-09-13
Provisional name:	T.Ifax2
Approval process:	AAP
Status:	Superseded
Maintenance responsibility:	ITU-T Study Group 16
Further details:	Patent statement(s) Development history

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
7	T.38 (11/2015)	In force	here	here	here
6.1	T.38 (2010) Amd. 1 (10/2014)	Superseded	here	here	here
6	T.38 (09/2010)	Superseded	here	here	here
6.0	T.38 (2010) Err. 1 (04/2013)	Superseded	-	-	here
5	T.38 (04/2007)	Superseded	here	here	here
4	T.38 (09/2005)	Superseded	here	here	here
3.1	T.38 (2004) Amd. 1 (01/2005)	Superseded	here	here	here
3	T.38 (04/2004)	Superseded	here	here	here
2.4	T.38 (2002) Amd. 2 (04/2004)	Superseded	here	-	here
2.3	T.38 (2002) Amd. 3 (01/2004)	Superseded	here	-	here
2.2	T.38 (2002) Amd. 1 (07/2003)	Superseded	here	-	here
2.1	T.38 (2002) Cor. 1 (07/2003)	Superseded	here	-	here
2	T.38 (03/2002)	Superseded	here	here	here
1.5	T.38 (1998) Amd. 4 (07/2001)	Superseded	here	-	here
1.4	T.38 (1998) Amd. 3 (11/2000)	Superseded	-	-	here
1.3	T.38 (1998) Cor. 1 (03/2000)	Superseded	-	-	here
1.2	T.38 (1998) Amd. 2 (02/2000)	Superseded	here	here	here
1.1	T.38 (1998) Amd. 1 (04/1999)	Superseded	here	here	here
1	T.38 (06/1998)	Superseded	here	here	here


ITU-T Supplement	Title	Status	Summary	Table of contents	Download
T Suppl. 1 (11/2004)	Conformance testing requirements for Recommendations of the T.170-series	In force	here	here	here

T.38 (2005-09)

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	T38(1998)	-
ASN.1	T38(2002)	-

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ITU-T Recommendations

ITU-T T.38 (09/2005)