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ITU-T H.248.78

Gateway control protocol: Bearer-level application level gateway

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Organization: ITU-T
Publication Date: 1 March 2013
Status: inactive
Page Count: 20
scope:

In a split media gateway controller (MGC) and media gateway (MG) environment, call-level application level gateways (ALG) are common in order to translate address information (i.e., network address and port translation (NAPT)) between two signalling domains. Typically, the application signalling traverses the MGC. ITU-T H.248 is therefore not involved in these translations other than to set the necessary media transport parameters on applicable terminations.

Increasingly bearer-level application control signalling is being used which instead traverses the MG. This bearer-level application signalling typically is used within a session that has been established by the MGC; thus, some coordination between the two levels is needed.

This Recommendation provides functionality that allows the MGC and MG to coordinate bearer-level application level gateway functionality.

Document History

ITU-T H.248.78
November 1, 2015
Gateway control protocol: Bearer-level message backhauling and application level gateway
In a split media gateway controller (MGC) and media gateway (MG) environment, call-level application level gateways (ALGs) are common in order to translate address information (i.e., network address...
ITU-T H.248.78
April 1, 2015
Gateway control protocol: Bearer-level message backhauling and application level gateway
In a split media gateway controller (MGC) and media gateway (MG) environment, call-level application level gateways (ALG) are common in order to translate address information (i.e., network address...
ITU-T H.248.78
March 1, 2013
Gateway control protocol: Bearer-level application level gateway
In a split media gateway controller (MGC) and media gateway (MG) environment, call-level application level gateways (ALG) are common in order to translate address information (i.e., network address...
ITU-T H.248.78
September 1, 2010
Gateway control protocol: Bearer-level application level gateway
In a split media gateway controller (MGC) and media gateway (MG) environment, call-level application level gateways (ALG) are common in order to translate address information (i.e., network address...

References

This document references:
TS 123 228 - Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2
Published by ETSI on May 1, 2022
This document defines the stage-2 service description for the IP Multimedia Core Network Subsystem (IMS), which includes the elements necessary to support IP Multimedia (IM) services. ITU-T...
This document references:
IETF RFC 2326 - Real Time Streaming Protocol (RTSP)
Published by IETF on April 1, 1998
The Real Time Streaming Protocol, or RTSP, is an application-level protocol for control over the delivery of data with real-time properties. RTSP provides an extensible framework to enable...
This document references:
ITU-T H.248.1 - Gateway Control Protocol: Version 3
Published by ITU-T on March 1, 2013
This Recommendation defines the protocols used between elements of a physically decomposed multimedia gateway. There are no functional differences from a system view between a decomposed gateway,...
This document references:
ITU-T H.248.64 - (Pre-Published) Gateway control protocol: IP router packages
Published by ITU-T on March 1, 2013
An ITU-T H.248 media gateway (MG) may provide ITU-T H.248 IP-to-IP contexts, which implies an IP forwarding function (in the ITU-T H.248 bearer path or IP data path). There are many different...
This document references:
ITU-T H.248.69 - Gateway control protocol: Packages for interworking between MSRP and H.248
Published by ITU-T on March 1, 2009
This Recommendation defines packages and procedures to enable the message session relay protocol (MSRP) to be sent and received on a H.248 controlled media gateway (MG). It further allows...
This document is referenced by:
ITU-T H.248.86 - Gateway Control Protocol: ITU-T H.248 support for deep packet inspection
Published by ITU-T on January 1, 2014
An ITU-T H.248 media gateway (MG) provides operations on packet traffic in general, related to the ephemeral (and root) termination type. Several existing ITU-T H.248 packages include packet...
This document is referenced by:
TS 129 334 - Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IMS Application Level Gateway (IMS-ALG) – IMS Access Gateway (IMS-AGW); Iq Interface; Stage 3
Published by ETSI on July 1, 2022
The present document describes the protocol to be used on the IMS Application Level Gateway (ALG) – IMS Access Gateway (IMS-AGW) interface. The basis for this protocol is the H.248 protocol as...
This document is referenced by:
ITU-T H.248.89 - Gateway Control Protocol: TCP support packages
Published by ITU-T on October 1, 2014
In scope of this Recommendation are ITU-T H.248 IP media gateway TCP-based bearer interfaces. Such an ITU-T H.248 MG provides various functions for processing of TCP/IP packets, TCP payload data and...
This document is referenced by:
ITU-T H.248.90 - Gateway control protocol: ITU-T H.248 packages for control of transport security using transport layer security (TLS)
Published by ITU-T on October 1, 2014
Transport layer security (TLS) is a cryptography protocol that provides secure communication between two IP transport connection endpoints This Recommendation defines, in general, ITU-T H.248...
This document is referenced by:
TS 129 238 - Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Interconnection Border Control Functions (IBCF) - Transition Gateway (TrGW) interface, Ix interface; Stage 3
Published by ETSI on May 1, 2022
The present document describes the protocol to be used on the Interconnection Border Control Function (IBCF) – Transition Gateway (TrGW) interface and the CS-IBCF – CS-TrGW interface. The basis for...
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