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User-Frendliness, Version 2

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User-Frendliness, Version 2 FINAL REPORT ON NUMBERING RELATED TO THE TOPIC OF USER-FRIENDLINESS 3 October 1996 This study has been prepared by ETO on behalf of ECTRA for the Commission of the European Union. This report does not necessarily reflect the views of ECTRA or the Commission, nor do ECTRA members or the Commission accept responsibility for the accuracy of the information contained herein. © European Commission Work order nr 48 267 End date: 1st September 1996 ETO reference: 96 09 94 04 Authors: Jukka Kanervisto Gerd Wiedenhaupt 2 Contents EXECUTIVE SUMMARY ...................................................................................................................... 4 CHAPTER 1 - PRESENTATION OF THE STUDY ............................................................................. 9 1.1 - ETO PRESENTATION ............................................................................................................................ 9 1.2 - PRESENTATION OF THE WORK ORDER .................................................................................................. 9 1.3 - SCHEDULE AND METHODOLOGY ........................................................................................................ 10 CHAPTER 2 - BACKGROUND AND DEFINITION OF STUDY ITEMS ...................................... 11 2.1 - USER-FRIENDLINESS IN NUMBERING .................................................................................................. 11 2.2 - ALPHANUMERIC DIALLING ................................................................................................................. 11 2.3 - CODE ALLOCATION AND NUMBERING OF CALLING LINE IDENTIFICATION (CLI) ................................ 11 CHAPTER 3 -USER-FRIENDLINESS IN NUMBERING ................................................................ 13 3.1 - ATTRIBUTES FOR THE USABILITY OF TELECOMMUNICATION SERVICES .............................................. 13 3.2 - FACTORS OF USER-FRIENDLY NUMBERING ......................................................................................... 14 3.3 - USER-FRIENDLINESS IN NUMBERING SCHEMES .................................................................................. 15 3.3.1 - A general structure of the numbering scheme ........................................................................... 15 3.4 - USER-FRIENDLINESS IN INDIVIDUAL NUMBERS .................................................................................. 17 3.4.1 - Numbering logic for services .................................................................................................... 17 3.5 - NUMBER STRUCTURE AND AVAILABLE NUMBERS CAPACITY ............................................................. 27 3.6 - IMPLICATIONS OF SHORT NUMBERS/ACCESS CODES IN NUMBERING SCHEMES ................................... 28 3.7 - CONCLUSIONS AND RECOMMENDATIONS ........................................................................................... 30 CHAPTER 4 - ALPHANUMERIC DIALLING .................................................................................. 32 4.1 - DEMANDS FOR ALPHANUMERIC DIALLING ......................................................................................... 32 4.1.1 - The user's perspective ............................................................................................................... 32 4.1.2 - The service provider's perspective ............................................................................................ 32 4.1.3 - The network operator's perspective .......................................................................................... 32 4.1.4 - The perspective of the manufacturing industry ......................................................................... 33 4.2 - STANDARDS ...................................................................................................................................... 33 4.2.1 - ITU-T ........................................................................................................................................ 33 4.2.2 - ETSI .......................................................................................................................................... 34 4.2.3 - ISO / IEC ................................................................................................................................... 35 4.3 - PRESENT SITUATION IN THE MARKET PLACE ...................................................................................... 35 4.4 - CONCLUSIONS ................................................................................................................................... 35 4.6 - REGULATORY ASPECTS ...................................................................................................................... 37 CHAPTER 5 - CODE ALLOCATION AND NUMBERING OF CALLING LINE IDENTIFICATION (CLI) ..................................................................................................................... 39 5.1 - CALLING LINE IDENTIFICATION AS A CONCEPT .................................................................................. 39 5.2 - THE USE OF IDENTIFICATION SERVICES ............................................................................................. 39 5.3 - A DEFINITION OF IDENTIFICATION SERVICES ...................................................................................... 40 5.3.1 - Calling Line Identification Presentation (CLIP)....................................................................... 41 5.3.2 - Calling Line Identification Restriction (CLIR) ......................................................................... 42 5.3.3 - Connected Line Identification Presentation (COLP) ................................................................ 43 5.3.4 - Connected Line Identification Restriction (COLR) ................................................................... 43 5.4 - STANDARDISATION OF IDENTIFICATION SERVICES IN ETSI AND ITU-T ............................................. 43 5.5 - WHICH ENVIRONMENT SUPPORTS IDENTIFICATION SERVICES? .......................................................... 43 5.5.1 - Fixed networks .......................................................................................................................... 43 5.5.2 - Mobile networks ........................................................................................................................ 45 5.5.3 - Terminal equipment .................................................................................................................. 45 5.6 - SITUATION IN EUROPEAN COUNTRIES ................................................................................................ 45 5.7 - CURRENT SITUATION WITH RESPECT TO EUROPEAN UNION DEMANDS............................................... 46 5.8 - CONCLUSIONS AND RECOMMENDATIONS .......................................................................................... 47 ___________________________________________________________________________________ Work order nr 48267 Numbering related to the topic of user-friendliness 3 October 1996 © European Commission 3 CHAPTER 6 - SUMMARY OF CONCLUSIONS AND RECOMMENDATIONS ......................... 50 6.1 - USER-FRIENDLINESS IN NUMBERING .................................................................................................. 50 6.2 - ALPHANUMERIC DIALLING ................................................................................................................. 52 6.3 - CODE ALLOCATION AND NUMBERING OF CALLING LINE IDENTIFICATION (CLI) ................................ 53 ANNEXES ............................................................................................................................................... 54 ANNEX 1 - WORK REQUIREMENT .............................................................................................................. 55 ANNEX 2 - LIST OF ABBREVIATIONS .......................................................................................................... 57 ANNEX 3 - DIALLING EXAMPLES OF EXISTING SHORT NUMBERS ................................................................ 59 ANNEX 4 - NUMBER FORMAT AND NUMBER CAPACITY.............................................................................. 60 ANNEX 5 - CLI CAPABILITIES IN THE FIXED TELEPHONE NETWORKS .......................................................... 73 ANNEX 6 - PRESENT AND PLANNED CLI IMPLEMENTATION IN SOME EUROPEAN COUNTRIES..................... 74 ANNEX 7 - AVAILABILITY OF DTMF CAPABILITIES IN DIFFERENT EUROPEAN COUNTRIES ......................... 76 ANNEX 8 - EUROPEAN UNION DEMANDS ................................................................................................... 77 ANNEX 9 - LIST OF REFERENCES ................................................................................................................ 78 ANNEX 10 - COMMENTS OF INDIVIDUAL ECTRA COUNTRIES ................................................................... 79 This report has been prepared by Jukka Kanervisto and Gerd Wiedenhaupt from ETO with the kind assistance of experts from the ECTRA Project Team on Numbering, ECMA, ECTUA, ETNO, ECTEL, EIIA, and ETSI and GSMMoU EIG. It is to be noted however that the report does not necessarily reflect the official opinions of the said organisations. ___________________________________________________________________________________ Work order nr 48267 Numbering related to the topic of user-friendliness 3 October 1996 © European Commission
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