#VantageReels: This day in history: In 1963, the first push-button telephones were introduced in the US | #FPRewind with @palkisharmaupadhyay They replaced the rotary-dial models. The original touch-tone phones had 10 buttons. But in 1968, the star and hash keys were added. #VantageOnFirstpost | Firstpost

A space engineer made a working rotary cell phone. | Mashable

Using a rotary phone in the 1950s required inserting a finger into a number's hole, rotating the dial fully clockwise to the metal stop, and allowing it to return unimpeded. This meant waiting for the dial tone, dialing each digit of the number correctly one by one, and letting the return mechanism generate the precise electrical pulses needed for a successful connection. Credit: AT&T | History In Pictures

The true story behind the first-ever telephone call reveals a race for invention and a legal battle for credit. #history #didyouknow #invention #telephone | The Curious Archive