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In 1854 Antonio Meucci constructed telephone-like devices.
[https://en.wikipedia.org/wiki/History_of_the_telephone] -
Alexander Graham Bell was awarded the first U.S. patent for the invention of the telephone in 1876. [https://en.wikipedia.org/wiki/History_of_the_telephone]
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The Rotary Dial was invented by John and Charles Erickson, and their partner A.E. Keith in 1896. It wasn't until 1919, however, that the first rotary dial entered into service.
[http://visionlaunch.com/when-was-the-rotary-phone-invented/] -
Alexander Graham Bell makes the first transcontinental telephone call to Thomas Watson-from New York to San Francisco-after trials using De Forest’s triodes successfully boost the long-distance signal.
[http://www.greatachievements.org/?id=3625] -
Starting in 1940, hand-held radio receivers had been widely available, opening up communications in battlefields around the world.
[http://bebusinessed.com/history/history-cell-phones/] -
Bell Telephone introduced the first commercial push-button telephone on November 18, 1963. The push-button phone replaced the rotary dial phone, which had been in use for decades.
[http://www.ithappenedinthe60s.com/posts/november-18-1963-introduction-of-the-push-button-telephone/] -
The first version of the cordless phone was invented in 1965 it was invented by a Jazz musician the phone had a 2-mile range that caused radio signals to interfere with aircraft so it couldn't be marketed.
[https://en.wikipedia.org/wiki/Cordless_telephone] -
The first mobile phone was introduced by Dr. Martin Cooper on April 3rd, 1973.
[https://www.timetoast.com/timelines/history-of-cell-phones--11] -
The clamshell phone is often known as the flip phone, and it was the first serious type of cell phone that anyone could carry.It was invented in 1989.
[http://dumbphonesforsmarties.com/when-was-the-first-flip-phone-invented-and-who-made-it/] -
The IBM Simon was the first phone with a touchscreen in 1992 — it's also referred as the first “smartphone,” though the term was not yet coined.
[http://mashable.com/2012/11/09/touchscreen-history/#KNkojkVmIsqr] -
iPhone 7 and iPhone 7 Plus are smartphones designed, developed, and marketed by Apple Inc. They were announced on September 7, 2016.
[https://en.wikipedia.org/wiki/IPhone_7]
