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Quick takeaways
- The invention of the touch-tone keypad revolutionized phone communication by enabling direct dialing and automated systems.
- The touch-tone keypad's dual-tone multi-frequency (DTMF) tones provided convenience and found applications in voicemail control and TV commercial insertion.
Deep dives
The Invention of the Telephone and the Bell Telephone Company
Alexander Graham Bell patented the telephone in 1876, leading to the formation of the Bell Telephone Company, which eventually became AT&T. AT&T struck a deal with the government to provide phone service across the United States and Canada, ensuring universal service and comparable prices for all areas.
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