ITU F.440:1992
ITU F.440:1992 Message Handling System: The Voice Messaging Service
Table of Contents
1Purposeandscope1.1General
1.2Messagehandlingsystemsusedintheprovision
ofVM-service
2VM-service
2.1Generalservicerequirements
2.2VM-servicefeatures
2.3Responsibilityboundaries
2.4Messagestore
2.5Telephoneserviceaccessunit
2.6Useofdirectory
2.7Security
2.8Distributionlists
3Typesofbodyparts
3.1Applicablebodyparttypes
3.2Structureofvoicemessages
3.3VMforwarding
4Conversionbetweendifferentencodedinformationtypes
5Namingandaddressingingeneral
5.1Directorynames
5.2O/Rnames
5.3O/Raddresses
6Operationoftheservice
6.1General
6.2Messagehandlingphases
7Qualityofservice
7.1Messagestatus
7.2SupportbyAdministrations
7.3Modelofdeliveryandnotificationtimes
7.4Messagedeliverytimetargets
7.5Deliverynotificationtimetargets
7.6Receiptnotificationsandnon-receipt
notifications
7.7Errorprotection
7.8Availabilityofservice
7.9Minimumstoragecapacity
8Tariffandaccountingprinciples
9Networkrequirements
10Userinformationandsupport
11UseoftheVM-servicewithinCCITTdefinedtelematic
services
ANNEXAAbbreviations
ANNEXBSubscriberaccessandterminalrequirements
B.1General
B.2TerminalswithoutUAfunctionality
B.3TerminalswithUAfunctionality
ANNEXCVMelementsofservicefor1984systems
ANNEXDClassificationofelementsofservicefor
VoiceMessaging
ANNEXE
E.1Attendant-assisteddelivery
E.2Forwardingvoicemessageindicator
E.3Replyingvoicemessageindicator
E.4StoredVM-auto-forward
E.5TS-recipientspokennameindicator
E.6TSAU-recipient
E.7Voicemessagecreationtime
E.8Voicemessagedurationindicator
E.9Voicemessageidentification
E.10VM-encodingalgorithmindicator
E.11VM-forwarding
E.12VM-multi-partbody
E.13VN-receiver
E.14VM-recipientindicator
E.15VM-servicestatusrequestnotification
E.16VM-spokennameindication
E.17VM-subjectindication
ANNEXFClassificationofelementsofservicespecific
tothetelephoneserviceaccessunit
ANNEXGSecurevoicemessagingelementsofservice
G.1Non-repudiationofcontentoriginated
G.2Non-repudiationofcontentreceived
G.3Non-repudiationofcontentreceivedrequest
G.4Non-repudiationofvoicenotification
G.5Non-repudiationofvoicenotificationrequest
G.6Proofofcontentreceived
G.7Proofofcontentreceivedrequest
G.8Proofofvoicenotification
G.9Proofofvoicenotificationrequest
G.10Newvoicemessagingsecurityoptionalper
recipientuserfacilitieselementsof
service
G.11Voicemessagingsecurityoptionalper
message/recipientuserfacilitieselements
ofservice
ANNEXHVoicemessagingsecurityoverview
H.1Introduction
H.2Vulnerabilities
H.3Vulnerabilitiescountered
H.4Additionalpervasivemechanisms