X-Nico

3 unusual facts about rotary dial


IBM OpenDX

Indirect interactors (dials, switches, buttons, sliders) enable the user to control various aspects of her visualization.

Rotary dial

From the 1960s onward, the rotary dial was gradually supplanted by dual-tone multi-frequency push-button dialing, first introduced to the public at the 1962 World's Fair under the trade name Touch-Tone®.

Stepped Reckoner

It operates like a telephone dial, with ten holes in its circumference numbered 0–9.


Area codes 215 and 267

Given the rotary dialing technology in use at the time, the North American Numbering Plan Administrator wanted to keep the number of "clicks" to a minimum for large cities.


see also

Interactive communication

The automobile dashboard, the iconic Fender Stratocaster electrical guitar, and popular telephones from the Western Electric Model 302 rotary dial to the Apple iPhone multi-touch screen are examples of effective control panels.

Phreaking boxes

In other countries white box can be referred to a Portable DTMFtone-dial keypad with speaker which was used to access an answering machine to hear your messages when you were away from home and also could be used on PBX phone systems that required tone dialing & used to generate tones if the telephone is rotary-dial or its keypad is locked.