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ETSI
ETS 300 640 : 20001

ETS 300 640 : 20001

Current

Current

The latest, up-to-date edition.

HUMAN FACTORS (HF) - ASSIGNMENT OF ALPHABETIC LETTERS TO DIGITS ON STANDARD TELEPHONE KEYPAD ARRAYS

Available format(s)

Hardcopy , PDF

Language(s)

English

Publisher

European Telecommunications Standards Institute

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
  3.1 Definitions
  3.2 Symbols
  3.3 Abbreviations
4 Assignment of alphabetic letters to digits
Annex A (informative): Characteristics of the standard
         telephone keypad array
  A.1 Legibility of characters
  A.2 Size of keys
History

Outlines the assignment of alphabetic letters to digits on standard telephone keypad arrays.

Committee
HF 1
DocumentType
Standard
Pages
10
PublisherName
European Telecommunications Standards Institute
Status
Current
Supersedes

Standards Relationship
PN ETS 300 640 : 2005 Identical
DIN ETS 300640:1997-04 Identical
NF ETS 300640 : 2000 Identical

BS PAS 019(1997) : 1997
ETR 345 : 20001 HUMAN FACTORS (HF) - CHARACTERISTICS OF TELEPHONE KEYPADS AND KEYBOARDS - REQUIREMENTS OF ELDERLY AND DISABLED PEOPLE
ES 202 130 : 2.1.2 HUMAN FACTORS (HF); USER INTERFACES; CHARACTER REPERTOIRES, ORDERINGS AND ASSIGNMENTS TO THE 12-KEY TELEPHONE KEYPAD
ETR 334 : 20001 HUMAN FACTORS (HF) - THE IMPLICATIONS OF HUMAN AGEING FOR THE DESIGN OF TELEPHONE TERMINALS
BS 7983:2001 Requirements for payphones for networks other than the ISDN
ETR 294 : 20001 RADIO EQUIPMENT AND SYSTEMS (RES) - TRANS-EUROPEAN TRUNKED RADIO - TETRA) - VOICE AND DATA (V+D) AND DIRECT MODE OPERATION (DMO)
ETR 329 : 20001 HUMAN FACTORS (HF) - GUIDELINES FOR PROCEDURES AND ANNOUNCEMENTS IN STORED VOICE SERVICES (SVS)

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Hardcopy - English
PDF - English
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