SS-ETS-300640 › Human Factors (HF) - Assignment of alphabetic letters to digits on standard telephone keypad arrays

SS-ETS-300640 - EDITION 1 - CURRENT


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Human Factors (HF) - Assignment of alphabetic letters to digits on standard telephone keypad arrays

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Designation Name

SS-ETS 300640

Revision Level

EDITION 1

Status

Current

Publication Date

Sept. 27, 1996

Language(s)

English

International Equivalent

ETS 300640:1996(IDT)