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Period: to
Telephone timeline
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Firs telephone ever made
Alexander Graham Bell's invention of the telephone in 1876 -
Telephone transmission extends
Telephone transmission extends across and between major cities -
First Transcontinental Telephone Call
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Switching systems and rotary-dial telephones
Bell System companies begin installing switching systems and rotary-dial telephones -
First transatlantic telephone cable
The first transatlantic telephone cables installed from Scotland to Nova Scotia, providing telephone service between North America and the United Kingdom. It takes 3 years and $42 million to plan and install, using 1,500 nautical miles of specially insulated coaxial cable. -
First 911 call is made
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First portable cell phone call is made
The first portable cell phone call is made by Martin Cooper of Motorola. Although mobile phones had been used in cars since the mid-1940s, Cooper’s was the first one invented for truly portable use. He and his team are awarded a patent in 1975. -
First smartphone
In 1999, the Japanese firm NTT Docomo released the first smartphones to achieve mass adoption within a country. -
100 million cellular telephone subscribers
The number of cellular telephone subscribers in the United States grows to 100 million, from 25,000 in 1984. -
Camera phone
The first camera phone was sold in 2000 in Japan, a J-Phone model, -
Fist Apple Iphone
n 2007, Apple Inc. introduced the iPhone, one of the first mobile phones to use a multi-touch interface. -
First Smartphone with 4K Video Camera
13 MP, 4160 x 3120 pixels,
