• ETSI TCRTR 023
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ETSI TCRTR 023

  • Human Factors (HF); Assignments of alphabetic letters to digits on push button dialling keypads
  • standard by European Telecommunications Standards Institute, 10/01/1994
  • Publisher: ETSI

$7.00$14.00


Position of ETSI on the harmonisation of the assignment of alphabetic letters to digits on push button dialling keypads.

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