Gateway control protocol: Bearer-level message backhauling and application level gateway |
|
Recommendation ITU-T H.248.78 defines a package that allows bearer-level application protocol (such as real time streaming protocol (RTSP) or message session relay protocol (MSRP)) messages received by a media gateway (MG) to be communicated to a media gateway controller (MGC). This allows the MGC to perform application-level gateway functionality such as network address translation on the messages and then forward the messages to the MG for sending to the destination.
The 03/2013 revision incorporates an update to correctly refer to the "Message Session Relay Protocol".
The 04/2015 revision adds a further ITU-T H.248 package for support of:
a) MG located application-level gateway functionality and
b) MG message backhauling functionality
It also updates the title from "bearer-level application level gateway" to "bearer-level message backhauling and application level gateway".
This revision adds an annex that describes Extensible Messaging and Presence Protocol (XMPP) to MSRP interworking utilising mechanisms defined in this Recommendation.
|
|
Citation: |
https://handle.itu.int/11.1002/1000/12642 |
Series title: |
H series: Audiovisual and multimedia systems H.200-H.499: Infrastructure of audiovisual services H.240-H.259: Communication procedures |
Approval date: |
2015-11-29 |
Provisional name: | H.248.ALG |
Approval process: | AAP |
Status: |
In force |
Maintenance responsibility: |
ITU-T Study Group 16 |
Further details: |
Patent statement(s)
Development history
|
|
|
|
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 |
Implementers' Guide for ITU-T H.248 Sub-series
|
2017-10-27
|
here
|
Title |
Approved on |
Download |
Testing of personal audio systems for compliance with ITU-T H.870 (2018)
|
2021
|
here
|
Telecommunications Accessibility Checklist
|
2006
|
here
|
|