ES 202 130-2007 Human Factors (HF); User Interfaces; Character repertoires@ orderings and assignments to the 12-key telephone keypad (for European languages and other languages used in Europe) (V2.1.2)
ETSI - European Telecommunications Standards Institute
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ES 202 130-2007
ES 202 130-2007 history
2007ES 202 130-2007 Human Factors (HF); User Interfaces; Character repertoires@ orderings and assignments to the 12-key telephone keypad (for European languages and other languages used in Europe) (V2.1.2)
2003ES 202 130-2003 Human Factors (HF); User Interfaces; Character repertoires@ ordering rules and assignments to the 12-key telephone keypad (V1.1.1)