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On March 10, 1876, Alexander Graham Bell spoke into his device and said to his assistant, “Mr. Watson, come here, I want to see you.” This is when Bell launched the telephone era with the first 'bi-directional electronic transmission of the spoken word'.
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allowed callers to leave a message if no one was on the other end
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AT&T introduced Touch-Tone, which allowed phones to use a keypad to dial numbers and make phone calls. Each key would transmit a certain frequency, signaling to the telephone operator which number you wanted to call.
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an asset that allows a user to interact with a computer by touching areas on the screen with their finger
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You could now decide whether that phone call was worth answering or whether you could just send them to voicemail. Now standard, Caller ID changed the way we used telephones.
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made it where you were no longer physically attached to your phone’s base station
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257,000,000 use cellphones to communicate and approximately 350 billion go without one
