E.۱۶۱
Sign in to saveE.161 is an ITU-T Recommendation that defines the arrangement of digits, letters, and symbols on telephone keypads and rotary dials. It also defines the recommended mapping between the basic Latin alphabet and digits (e.g., "DEF" on 3). Uses for this mapping include:
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- Arrangement of digits, letters and symbols on telephones and other devices that can be used for gaining access to a telephone network
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