Rotary Dialing

How did rotary dialing come about?

Almon Strowger’s 1890’s original telephone system was slightly flawed, as it required users to be accurate in the number of times they tapped each of the buttons on the phone, required users to press a release button after the call was completed, and did not prevent users from being connected to a line that was already in use. Also, the system at first could only serve 99 telephone lines, and required that each telephone have a strong battery and be connected to the central office by five wires. Eventually the company – with Moses A. Meyer as president, Strowger as vice president, Harris as company secretary, engineer Alexander Keith and John and Charles Eriksson – refined the system to solve many of these problems. The refinements included the addition of a rotary dial in 1896.  but…

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