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talking at a distance
Alexander Graham Bell's invention of the telephone in 1876 rang in the era of talking at a distance. -
Bell Telephone Company
Bell Telephone Company was formed by Gardiner Hubbard. The Charles Williams shop made the first telephones under the direction of Watson, who in effect was the Research and Development Department of the company. -
Telephone transmission
"loading coils" are placed along the lines to reduce distortion and attenuation or the loss of a signal's power. Independently invented by the American Telephone and Telegraph Company's (AT&T) the loading coils are first used in New York and Boston, nearly doubling the transmission distance of open lines. this is signifcant because its was used for phones to be used al across the country -
First transcontinental telephone call
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. This is significant because we now can see that the telephone is capable of being used long distances -
Switching systems and rotary-dial telephones
Bell System companies begin installing switching systems and rotary-dial telephones, though dial phones have been around since just before the turn of the century. this is significant because they are now beginning to make different types of phones which will eventually lead to the making of better nicer phones. -
Frequency multiplexing concept
AT&T develops the frequency multiplexing concept, in which frequencies of speech are shifted electronically among various frequency bands to allow several telephone calls at the same time. This is significant because today many calls go on at the same exact time, if this was never invented there would be many angry people that would have to wait to make one phone call -
North American Numbering Plan
With the rapidly growing number of telephone customers, AT&T and Bell Labs develop the North American Numbering Plan, a system that assigns telephone numbers to customers in the United States and its territories as well as Canada and many Caribbean nations. If it were'nt for this genious invention then nobody would have their own cell phone number like we do today, every single person has their own number to be reached at. -
AT&T
comes out with the first radio-car-phones that can be used only on the highway between New York and Boston; they are known as push-to-talk phones. The system operates at frequencies of about 35 to 44 MHz, but once again there is a massive amount of interference in the system. AT&T declares the project a failure. -
A Mathematical Theory of Communication
Bell Labs’s Claude Shannon publishes the landmark paper "A Mathematical Theory of Communication," which provides mathematicians and engineers with the foundation of information theory. The paper seeks to answer questions about how quickly and reliably information can be transmitted. -
Model 500 telephone
AT&T introduces the Model 500 telephone, the first that combines a ringer and handset. The classic black rotary phone, featuring an adjustable volume control for the bell and later a variety of colors, becomes a cultural icon. This is significant because it is the start of the home telephones and eventually the beginning of cell phones. -
First car phones
The first real car phones, come into play accross the United States. Although, the system is still using push-to-talk phones, it is an improved version that acctually works. However, the units are big and bulky, and require a personal radio operator to switch the calls.This is significant because cell phones are starting to be more wide spread instead of just being used at home -
Touch-tone telephone is introduced
The touch-tone telephone is introduced, with the first commercial service available in Carnegie and Greensburg, Pennsylvania, for an extra charge. The Western Electric 1500 model features 10 push buttons that replace the standard rotary dial. A 12-button model featuring the * and # keys comes out soon afterward and replaces the 10-button model. This phone is the beginning of the cell phones we see now a days. this is significant because now all the phones we start to see look like this one. -
AT&T and the first mobile phone system
AT&T is the first company to propose a modern-day mobile-phone system to the FCC. It involves dividing cities into “cells”. It is the first company to do so. This is significant because cell phones are now impact in america and will start being used quickly, -
First portable cell phone call is made
The first portable cell phone call is made by Martin Cooper of Motorola to his research rival at Bell Labs, Joel Engel. Although mobile phones had been used in cars since the mid-1940s, Cooper’s was the first one invented for truly portable use. this is very significant because this is the start of the use of cell phones in America. -
Motorola
Dr. Martin Cooper invents the first personal handset while working for Motorola. He takes his new invention, the Motorola Dyna-Tac., to New York City and shows it to the public. His is credited with being the first person to make a call on a portable mobile-phone. This is significant because the mobile phone will boom all across america and will soon be the number one technology invention to talk about. -
Mobile company starts up
Finally cell phone testing is permitted by the FCC in Chicago. The Bell Telephone Company gets the license; they are in a partnership with AT&T which is a gerneral effort to battle the stubborn FCC. The idea of cellular phones are now all across the country and is significant to many Americans needs. -
The Cellular Technology Industry Association
One of the most important years in cell phone evolution. The Cellular Technology Industry Association is created and helps to make the industry into an empire. One of its biggest contributions is when it helped create TDMA phone technology, the most evolved cell phone yet. -
Growth of Cell Phones
Oftel Director General, David Edmonds, announced an intention to implement fully the recommendations made by the MMC following an investigation, made at the request of Oftel, into the price of calls made to mobile phones.
In 1998 more mobile phones were sold world-wide than cars and PCs combined. This is significant because cell phones are now the talk of the century -
Cell Phones Improve!
The "Thin Phone" integrates wireless Internet access with local wireless phone service, allowing Internat customers to stay connected with everything from Web pages to voice and e-mail, all while on the move. this is significant because these are the phones we use today and that almost evry single American is addicted to on a daily basis -
Big Increases!
BellSouth announces that it is leaving the pay phone business because there is too much competition from cell phones. The cell phone business is now rapidly increasing!
