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The Phone Was Invented By Alexander Graham Bell
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Exol 8A
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before the invention of the rotary telephone people had to be guided by an operator to make calls now they dont with the invention of the rotary telephone.
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The push-button phone is a telephone that uses buttons or for dialing a number to make a call to another phone
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The screen and buttons are kept inside the phone, which offers more surface area than when the device is closed.components such as keys and display are protected when the phone is closed, and it is shorter or narrower, making the device easier to carry around
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In the early 2000's the Ericsson R380 was released by Ericsson Mobile Communications, and was the first device marketed as a "smartphone".
