Telephone numeric keypad

Telephone numeric keypad


These systems sometimes overlook the fact that not everybody has the same kind of keypad. Next It is pretty odd that a calculator and a touch-tone telephone have exactly opposite layouts for their keypads, which have many identical components. There is also a theory that the layout was chosen because if the ten-key layout were chosen, people experienced with adding machines would dial faster than the telephone network could respond. This theory has little proof to substantiate it, but it does make sense. Here are some interesting links: The row in which the key appears determines the low-frequency component, and the column determines the high-frequency component.

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Telephone numeric keypad. Navigation menu.

Telephone numeric keypad


These systems sometimes overlook the fact that not everybody has the same kind of keypad. Next It is pretty odd that a calculator and a touch-tone telephone have exactly opposite layouts for their keypads, which have many identical components. There is also a theory that the layout was chosen because if the ten-key layout were chosen, people experienced with adding machines would dial faster than the telephone network could respond. This theory has little proof to substantiate it, but it does make sense. Here are some interesting links: The row in which the key appears determines the low-frequency component, and the column determines the high-frequency component. Telephone numeric keypad

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4 thoughts on “Telephone numeric keypad”

  1. This is done, for instance, when looking up a particular extension by name. We will incorporate the data in future revisions of our site.

  2. If you feel that you have found inappropriate content, please let us know by emailing us at answers-support google. This is done, for instance, when looking up a particular extension by name.

  3. It quotes two books and a news story that present and evaluate various theories. This is done, for instance, when looking up a particular extension by name. Here are some interesting links:

  4. For touchtone service, the signal is a dual-tone multi-frequency signaling tone consisting of two simultaneous pure tone sinusoidal frequencies. A few quick links would suffice.

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