ITU E.137:1997
ITU E.137:1997 User Instructions For Payphones Includes a set of guidelines for the designing of user instructions for public telecommunications terminals.
Table of Contents
1Scope2References
3Abbreviations
4Introduction
5Generalguidelines
5.1Instructions-General
5.2Amountofinformation
5.3Compatibilityofinstructions
5.4Informationlegibility
5.5Textualinstructions
5.6Alternativemethodsforpresentinginstructions
6Guidelinesforfixedinstructions
6.1Amountofinformation
6.2Informationcontent
6.3Completenessofinformation
6.4Instructionalsteps
6.5Modularpresentation
6.6Locatinginformation
6.7Informationlegibility
6.8Indicationofmovements
6.9Emergencyinformation
6.10Labelling
6.11Pictographicinstructions
6.12Choiceoflanguage
6.13Multiplelanguages
6.14Internationalcalls
6.15Charging
6.16Otherinformation
7Guidelinesfordynamicinstructions
7.1Instructionalsteps
7.2Highlighting
7.3Legibilityofdisplays
7.4Textualinstructions
7.5Choiceoflanguage
7.6Charging
AnnexACardphone
AppendixIBibliography