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ECMA TR/73 : 1ED 98

Current

Current

The latest, up-to-date edition.

H.323/B-ISDN SIGNALLING INTEROPERABILITY

Published date

12-01-2013

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1 Scope
2 References
3 Acronyms
4 Introduction
   4.1 Overview of H.323 and related recommendations
        4.1.1 H.323 concept and entities
        4.1.2 Channels defined in H
        4.1.3 Protocols and related standards
        4.1.4 Call procedures
        4.1.5 Fast connect
        4.1.6 Inter-domain signalling
   4.2 Overview of modelling work relating to B-ISDN
        signalling
   4.3 Overview of B-ISDN signalling - combined
        call/bearer control
   4.4 Overview of B-ISDN signalling - separated call
        and bearer control
5 Related work
   5.1 ECMA TC32-TG15 and ETSI SPS5 WG
   5.2 ITU-T Study Group
   5.3 ETSI project TIPHON
        5.3.1 General
        5.3.2 Gateway functional decomposition
   5.4 ATM Forum SAA/RMOA
   5.5 ECMA TC32-TG
   5.6 IETF
        5.6.1 SIP
        5.6.2 IPTEL
        5.6.3 E.164 Birds of a Feather activity
        5.6.4 NAVDEC
6 H.323 and modelling of B-ISDN signalling
7 H.323 interworking via a gateway with B-ISDN
   separated call and bearer control
   7.1 Scenarios
   7.2 Protocol interworking architecture
        7.2.1 Scenario
        7.2.2 Scenario
        7.2.3 Scenario
   7.3 Session control in B-ISDN environment
   7.4 Resource control in B-ISDN environment
   7.5 Call establishment
   7.6 Bearer establishment
   7.7 Addressing
        7.7.1 Addressing in H
        7.7.2 Addressing in B-ISDN and B-PISN
        7.7.3 Address interworking between H.323 and
               B-ISDN
   7.8 Message sequences for basic communication
        establishment
        7.8.1 Scenarios 1a and 1b
        7.8.2 Scenario 1c
        7.8.3 Scenarios 2a and 2b
        7.8.4 Scenario 2c
        7.8.5 Scenario 3c
   7.9 Generic Functional Protocol
   7.10 Supplementary services
        7.10.1 Introduction
        7.10.2 Supplementary services in scenario
        7.10.3 Supplementary services in scenario
        7.10.4 Supplementary services in scenario
        7.10.5 Areas for further work
   7.11 Conferencing
   7.12 Impact of T
8 H.323 interworking via a gateway with B-ISDN
   combined call/bearer control
   8.1 Scenarios
   8.2 Protocol interworking architecture
        8.2.1 Scenario
        8.2.2 Scenario
        8.2.3 Scenario
   8.3 Session control in B-ISDN environment
   8.4 Resource control in B-ISDN environment
   8.5 Call/bearer establishment
   8.6 Addressing
   8.7 Message sequences for basic communication
        establishment
        8.7.1 Scenarios 1a and 1b
        8.7.2 Scenario 1c
        8.7.3 Scenarios 2a and 2b
        8.7.4 Scenario 2c
        8.7.5 Scenario 3c
   8.8 Generic functional protocol
   8.9 Supplementary services
   8.10 Conferencing
   8.11 Impact of T
9 Summary of interworking scenarios in 7 and
   9.1 Scenario
   9.2 Scenario
   9.3 Scenario
10 Application of B-ISDN separated protocols to
   gatekeeper-to-gatekeeper communication
11 Connection of remote H.323 environments via B-ISDN
   11.1 Case 1 - full interworking
   11.2 Case 2 - tunnelling
        11.2.1 Scenario T1 - tunnelling of session and
               resource control protocols
        11.2.2 Scenario T2 - tunnelling of session
               control protocol only
        11.2.3 Scenario T3 - tunnelling of resource
               control protocol only
        11.2.4 Additional considerations when endstations
               employ H.323 annex C (native IP network or
               IP over ATM network)
        11.2.5 Conclusions on tunnelling scenarios
12 Co-existence of H.323 annex C and B-ISDN signalling in
   the same network
13 Impact of H.323 on future mobility protocols
   13.1 Introduction
   13.2 Mobility concepts
   13.3 Mobility architecture
   13.4 Virtual Home Environment (VHE)
14 Conclusions and recommendations

To investigate the interoperability of H.323 and B-ISDN signalling environments with a view to identifying possible standardization activities in this area is the purpose of this Technical Report. The following aspects of interoperability are investigated: connection of remote H.323 environments via B-ISDN; interworking of H.323 and B-ISDN environments, both separated and combined, via a gateway; use of H.323 annex C (H.323 on ATM), including the co-existence of H.323 annex C and B-ISDN signalling in the same network and possible future enhancement of annex C; application of the B-ISDN separated call control protocol to gatekeeper-to-gatekeeper communication and the impact of H.323 on future mobility protocols.

DocumentType
Technical Report
PublisherName
European Computer Manufacturers Association
Status
Current

ISO/IEC 11571:1998 Information technology — Telecommunications and information exchange between systems — Private Integrated Services Networks — Addressing
ECMA 155 : 2ED 97 PRIVATE INTEGRATED SERVICES NETWORKS - ADDRESSING
ECMA 254 : 1999 ERRATA 2001 BROADBAND PRIVATE INTEGRATED SERVICES NETWORK (B-PISN) - INTER-EXCHANGE SIGNALLING PROTOCOL - GENERIC FUNCTIONAL PROTOCOL (B-QSIG-GF)
ISO/IEC 13247:1997 Information technology — Telecommunications and information exchange between systems — Broadband Private Integrated Services Network — Inter-exchange signalling protocol — Basic call/connection control

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