The evolution of telephone 1870-2012

The earliest moot of telephone Innocenzo Manzetti was an Italian inventor born in 1826. Mooted the idea of the telephone in 1844.

The first phone call The very first phone call was made on March 10, 1876 by Alexander Graham Bell. "Watson, come here. I want you.“  Alexander Graham Bell is credited with inventing the first practical telephone - By today’s standards the call was a short call over a short distance.

Telephone - the progression of great invention 1939 World War II -1943 world's first portable two way radio Telephone - the progression of great invention

’’Mobile telephone’’ 1946: first mobile phone call A trucker with one of the first mobile phones

1947 Microwave radio transmission 1949  Model 500 telephone 1956  First telephone cable between North America and the UK 1963: first publicly available push-button telephone

 1968 First 911 call is made! 1970 Automatic call handoff system is invented

FINALLY! First portable cell phone 1973  First portable cell phone call is made The completed product 1982:

The change of era First NOKIA: (Analog) Mobira senator: -1990: Digital 2G phone system was created

Cellphones 1990s, the second generation 2G mobile phone systems emerged, primarily using the GSM standard and digital instead of analog transmission that made it faster The first GSM network arrived in Finland in 1991. The 2G phone introduction was a step toward lighter 100-200 gram mobile phones.

text messaging The 2G introduced a new variant of communication, the SMS (text messaging). The advent of prepaid services in the late 1990s soon made SMS the communication method of choice amongst the young. 2G also introduced the ability to access media content on mobile phones. In 1998 the first downloadable content sold to mobile phones was the ring tone, launched by Finland's Elisa.

19902012

3G (2001) The 3G technology is the use of packet switching rather than circuit switching for data transmission. In addition, the standardization process focused on requirements more than technology (2 Mbit/s maximum data rate indoors, 384 kbit/s outdoors, for example).

3G cellphones

sources http://gizmodo.com/357895/the-analog-cellphone-timeline http://powerupneo.wordpress.com/2011/07/31/evolution-of-wireless-mobile-phones/ http://www.schoelles.com/Telephone/teltimeline.htm http://www.greatachievements.org/?id=3625 http://en.wikipedia.org/wiki/Timeline_of_the_telephone