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In March 1876, the first telephone, also known as "talking telegraph", was invented by accident by the Scottish Alexander Graham Bell. It is considered one of the greatest advances in technology.
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Depending on the number of rings, the call was from one person or another.
It was typical in rural areas. -
They were composed by a transmitter ( where you talk) and a receiver ( you had to hold it to ear).
They were used until 1920's. -
A keypad was installed thanks to the 1950s research by Richard Deininger.
this pad also appears in calculators and numeriv pads. -
The hanset is portable.
The base in connected to the telephone network. -
It was a portable phone.
The prototipe was designed in 1973 athought it was started to be used in 1983.
It weighted a lot and was not comfortable to carry. -
Nokia launched for sale a new type of phone.
It was small but very practical.
People loved its designed. -
It is an intelligent phone.
It has internet conection and touch screen.
Apart from doing calls, it has many other benefits.
