# data[].attributes.body
The last ten years have seen the fastest electronic evolution ever seen, not only in telephones but every kind of electronic device. Not only his function has changed, but his use. People with a cell phone between 2010 and now have been using their phones for multiple tasks: calling, being on the social media, posting photos or videos, playing games, texting, plating music... The telephone's principal task isn't anymmore to call, but to be in touch with other people without talking.
Every year millions and milllions of different-brand cell phones are being selled to people all around the world: Iphone, Samsung, Xiaomi, Huawuei, LG ... are the most important brands nowadays.

# data[].attributes.body
By this time, cell phones had been massively produced and selled to millions of people all around the world. The cell phone could send messages, make calls, play music and even some of them had a touchscreen. Lots of the nowadays brads were created then.
In 2003, the first camera phone was produced.
By 2008, the first Iphone had already been invented, and cell phones could be used for playing games, having a digital agenda, play music, take pictures, make calls... And many of them had a touchscreen.

# data[].attributes.body
Cordless telephones were invented in the 1960's by a jazz musician, its use didn't popularize until mids of the 1980's and 1990 when the important business people started using them for important subjects. At first, it worked just as an extension of the common telephone; they only worked in a 100 meters radium and it had poor security, poor sound quality and limited range. They worked under a 46-49 MHz at first, and then under 902–928MHz.

# data[].attributes.body
The working of telephones had improved and some achievements were done. For example, the first long-distance calls had place. They were done from Englewood, New Jersey to anyplace in the United States in 1951 and the assistance of an operator wasn't necessary anymore

Even after this accomplishment, it took another decade to make calls nationwide (Scotland-Nova Scotia).

# data[].attributes.body
Telephones had changed since their invention in 1876: their shape, their functioning weren't the same.
The first common battery telephone system had its battery power centralized into the telephone exchange. Battery boxes and cranks for operating the magneto generator were removed.
By 1910, the prices had descended until half of the initial price, which made them even more popular.

# data[].attributes.body
https://www.history.com/topics/inventions/alexander-graham-bell
http://www.americaslibrary.gov/jb/recon/jb_recon_telephone_1.html
https://www.scienceabc.com/innovation/pictures-200-year-epic-journey-phones.html
http://www.greatachievements.org/?id=3625
https://www.ligo.co.uk/blog/brief-history-cordless-phone/
http://www.aitchtelecom.co.uk/blog/evolution-of-the-mobile-phones-over-the-last-10-years
https://www.webdesignerdepot.com/2009/05/the-evolution-of-cell-phone-design-between-1983-2009/

# data[].attributes.body
On March 10th, 1876, Alexander Graham Bell used his first successful telephone to call his assistant, Thomas Watson. The first words ever said in a telephone were: "Mr. Watson, come here, I want to see you."

The first design had a transmitter,a magnet and a receiver. The transmitter and receiver had a metal disk (diaphragm), which moved during the phone call, the motion was taken to the transmitter's diaphragm vibrated producing a sound.