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The world first telephone was invented after 45 years developed !
Alexander Graham Bell is the inventor of the microphone called "Electrical Speech Machine", which now we called telephone. He discover he could hear sound over a wire while experimenting with "Harmonic Telegraph". The sound come from was that of a twanging clock spring. Alexander Graham Bell first transmitted speech electrically using liquid successful the world first telephone with his assistant Thomas A.Watson. The first telephone invented didn't have a bell, until Watson invention later on. -
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Telephone Evolution
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Telephones first designed with number.
Telephone subscribers began to be designated by numbers rather than names. This allows more subscribers per switching station. -
The first automatic dial telephone was patent
There is no exactly date but in 1891 the first automatic dial system was patent by a Kansas city undertaker. Switchboard operators were no longer necessary to make a telephone call. -
The beginning of cell phone technology
No date exactly. Oliver Lodge demonstrates wireless communication over a distance of 150 yards. This is the beginning of cell phone technology -
The first pushbotton telephone was invented
No date exactly.Used tones in the voice frequency range rather than pulses generated by rotary dials - was installed in Baltimore.Operators in a central switching office pushed the buttons;but it too expensive however the Bell System was intrigued by touch-tone because it increased the speed of dialing. -
The world's first international communications satellite
The world's first international communications satellite was rocketed into the orbit with the collaboration between NASA and the Bell System. Telephone calls could now be "bounced" off a satellite to a switching station. Telephone calls could be sent longer distance but now be made across oceans without relying on under-sea cables which broke frequently and were sometimes snacks for sharks! This new type telephone called "Panel Telephone" with Copper faceplate with beige handset. -
The electronic telephone
No date exactly.Touch tone service became available in 1963.In 1964, a non-moving satellite was launched into space.The electronic telephone switching system is placed into service. Calls are switched faster than before. These telephone now called "Mobile Radio Telephone". -
First Cell Phone Call
In 1972, Motorola demonstrates the cellular telephone to the FCC. People could call each other without wires. Martin Cooper think there weren't cordless telephones, let alone cellular phones so he as the inventor of cell phone made the first cell phone call to the head researcher at Bell to let him know he did it first, in 1973. -
Cellular Phone began to nationwide usage
No date exactly. In 1978, American Telephone and Telegraph’s (AT&T) Bell Laboratories began testing a mobile telephone system based on hexagonal geographical regions called cells. As the caller’s vehicle passed from one cell to another, an automatic switching system would transfer the telephone call to another cell without interruption. The cellular telephone system began nationwide usage in the United States in 1983. -
Hi-Tech cellphone released
After 136 years evolution, telephone have developed from a transmitted speed using liquid and long cord connected house to house into a cellular phone with hi-tech such as iPhone was released on 2007 and many other smartphone and superphone with wi-fi, cordless , touchscreen....releasing the market, which now we called "mobile phone or cellphone".
