ITU F.420:1992
ITU F.420:1992 Message Handling Services: The Public Interpersonal Messaging Service
Table of Contents
1Purposeandscope1.1General
1.2Messagehandlingsystemsusedintheprovision
ofIPMservice
2IPMservice
2.1Generalservicerequirements
2.2IPMservicefeatures
2.3Responsibilityboundaries
2.4Messagestore
2.5Useofdirectory
2.6Security
2.7Distributionlists
2.8Intercommunicationwithphysicaldelivery
services
3Typesofbodyparts
4Conversionbetweendifferentencodedinformation
types
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
11UseoftheIPMservicewithinCCITT-defined
telematicservices
ANNEXB-Subscriberaccessandterminalrequirements
B.1General
B.2TerminalswithoutUAfunctionality
B.3TerminalswithUAfunctionality
APPENDIXI-ErratatoRecommendationsF.421andF.422
I.1ErratatoRecommendationF.421
I.2ErratatoRecommendationF.422