ITU F.471:1997

ITU F.471:1997 Operational Requirements For The Interconnection Of Voice-mail Store-and-forward Units Covers the general principles and operational aspects of the voice -mail store-and-forward service specified in Rec. F.472, when operated and interconnected between service providers. In addition it c

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Table of Contents

1Scope
2References
3Abbreviations
4Definitions
5Introduction
5.1InteractionbetweentheVMSanditsdirectuser
5.2InteractionbetweenaVoiceSFUanditsdirect
user(i.e.VMS)
5.3InteractionbetweenVoiceSFUs
5.4InteractionbetweenaVoiceSFUanddirect
usersofotherservices
6Overview
6.1Interconnection
6.2Technicalrequirements
6.3Accountingandsettlement
7Interconnectionrequirements
7.1General
7.2Informationexchange
7.3Voiceencoding
7.4Transitarrangements
8Serviceinterworkingprinciples
8.1Messageaddressing
8.2Messageidentification
8.3Classesofservice
8.4Messagedeferral
8.5Envelope
8.6Successful/unsuccessfulmessagetransfernotifications
8.7Successful/unsuccessfulmessagedelivery
notifications
8.8Voicecodingencodingconversion
9Qualityofservice
9.1Objectives
9.2Storagecapacity
9.3Observationsonthequalityofservice
9.4Durationofservice

Abstract

Covers the general principles and operational aspects of the voice -mail store-and-forward service specified in Rec. F.472, when operated and interconnected between service providers. In addition it covers the elements of service ovvered by Voice-mail Store-and Forward Units (Voice SFUs) to its direct user, a voice-mail system and between Voice SFUs.

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