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ITU H.450.7:1999

ITU H.450.7:1999 Message Waiting Indication Supplementary Service For H.323 Specifies procedures and signalling protocol for the Message Waiting Indication supplementary service (SS-MWI) in H.323 (Packet Based Multimedia Communications Systems) networks.

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Table of Contents

1Scope
2References
3Termsanddefinitions
4Abbreviationsandacronyms
5Introduction
6SS-MWIservicedescription
6.1Description
6.2Normalprocedures
6.3Exceptionalprocedures
7SignallingprotocolforthesupportofSS-MWI
7.1SS-MWIcodingrequirements
7.2SS-MWIstatedefinitions
7.3Timers
7.4SS-MWISignallingprocedures
7.5Gatekeeperinteractions
7.6InteractionsbetweenSS-MWIandother
supplementaryservices
7.7SS-MWIsecurityconsiderations
8SignallingflowsforSS-MWI
8.1ExampleMessageSequenceforSS-MWIactivation
8.2ExampleMessageSequenceforSS-MWIdeactivation
8.3ExampleMessageSequenceforSS-MWIinterrogation
9SpecificationandDescriptionLanguage(SDL)diagrams
9.1SDLRepresentationofSS-MWIattheMessage
Centreendpoint
9.2SDLRepresentationofSS-MWIattheServedUser

Abstract

Specifies procedures and signalling protocol for the Message Waiting Indication supplementary service (SS-MWI) in H.323 (Packet Based Multimedia Communications Systems) networks.

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