A standard telephone keypad, with four rows of three keys each. The top row consists of 1, 2, and 3, with keys continuing down in order until the last row, which is usually *, 0, and #. Such a keypad ...
An auxiliary keypad that can be programmed to enter menu sequences or strings of text with one keystroke. After being programmed, most keypads stand alone, while others require software running in the ...
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