Evolution of Telephone – The road first phone VoIP phone

Nobody knows the fact that the inventor of the first telephone by Alexander Graham Bell in March 1876. This is where the field of telecommunications in modern times takes roots.

the invention does not collect a lot of attention, which Bell said low expectations, but it was the Centennial Exhibition in Philadelphia, where the Brazilian Emperor Dom Pedro de Alcantara noticed this rather interesting man-made invention. He could not help but be amazed bell profound creativity, reflected in the creation of the phone.

In the early days, the phone is only seen as a luxury rather than a commodity of life. Only gain greater popularity as an essential medium of communication, when many corporate and government offices started to use it.

In 1880, when the metal circuits were introduced, took a long-distance communication. However, to a decade of use was restricted to a certain class who could afford to pay the cost of the call is difficult. Until the 1890s it became the party line appearance, comfortable people living in rural areas, especially to share the cost of the line is used by many.

before

1891, by the exchange of service calls, but as long as the new system of direct dialing system. Then there was the best use of your phone installed in 1927 when the first transatlantic phone call made using radio waves. That was all the time in the First and Second World War, when the phone has gone through a significant period of development, all thanks to the huge expenses that are more secure communications to ensure the defense ministry of the whole. These series of developments have also created the first mobile system that can be easily connected to mobile phones using radio waves of vehicles.

60 pm, the transatlantic cables were introduced to make it easier to call international calls.

However, the biggest shifts seen in the history of phones was in 1962, when the first telephone, satellite Telstar was launched. Telstar was a joint business venture between Bell and NASA for brining a more advanced form of communication. This paved the way for geosynchronous satellites orbit in question must be used to make long distance calls directly without relying on the cable lines, not to mention suffering because of recurring pain in cable damage and repair.

Fiber optic cables were first mid 1977, 80, optical cable took priority over other modes of telephone transmission, you can facilitate a greater number of calls is less interference compared to its predecessor methodologies. This information can be transmitted more quickly to more remote areas, and strongly resisted the accident, especially lightning. In short, it offered many advantages and safer than other modes. Because of the benefits, they also began to use fiber optic cables to computers.

After the US government takes away control of telephone service, AT & T met face a stiff competition from MCI, Sprint and many other local companies. This paved the way for fiber optic lines used immensely in all industries, and even began to use gas pipelines and railroad tracks.

This was in 1973, when Dr. Martin Cooper, Motorola has created for the first wireless phone call the handset, that is, with Dyna-Tac. After you complete a successful test run, they were introduced to the New York Public. That was in 1977, when the mobile phone has become popular among the people. Initially, the model was introduced slightly larger and are often used for those who used to stay in touch with the two-way radio communication mode. At that time, one could not imagine that I will use all. Cell phones worked little "cells" range of services to enhance the management of multi-facility call. Mobile phones allowed to participate in a greater number of calls at one time in one area.

Initially, however, used instead of the primary analog cellular service system technology, which operated at 800 MHz unceasingly. As time goes by, the industry standard has increased to 1850 MHz PCS. a committee, namely the Cellular Technology Industry Association was founded in 1988 to provide guidance and set the rules of the service provider and worked in the development and growth of the mobile phone industry. Today, there are about more than 60 million mobile phone customers in the vast wealth of services that just started working on the market only thirty years ago.

Today, instead of a digital cellular / mobile phones Analog phones. Digital technology transfer as a "pulse". The advantage of digital signs that they are more securely transmitted compared to competing analog, and it provides a more efficient bandwidth and higher quality sound. You can also share videos and images while surfing the Internet. All at once integrated into the phone.

However, the digital technology we have a problem of coverage. For example, because of three different technologies in mobile phone use, in case of a TDMA (time-division multiple access) system, but to move in an area that requires a CDMA (code-division multiple access) digital coverage, then you may need to facing technological problems.

is a perfect solution, and the United analog to digital technology, which is transmitted to the mobile phone service providers. So you can get up high for all types of communications, high-speed and uncompromising quality.

talk about the first "audio-conference" that can ever be used when lines were introduced for the first time to participate in the first few days the phone. Although at the time, the only advantage of people looking for part-lines was the economic factor, but there was the problem that many people in different locations to pick up and talk at the same time, an interception position and zero privacy element.

The number of people calling the idea, which originated in part lines, revived again, but this time in a better and more personal package. There was a time limitations and can only be accessed in times of need him.

Following this concept, companies from all over the world have started to offer services that are coordinated in a conference call facility for companies, so they fixed prices, or a monthly fee based on the number of calls. It served as fertile for saving travel costs and other expenses the call. They provided links between the skilled manager allows all participants onto a dedicated line. Thus, a group of people can easily communicate with each other all at once. The service providers offer their customers an affordable price.

First, a lot of phone manufacturing companies namely Polycom, AT & T and Panasonic advanced office telephone systems that allowed office users to invite a client, put on hold, and dial another party. That helped the building of a multi-establish communications with the caller's easy to communicate with more than two people at a time to discuss important business deals.

came the Internet, which happens to be the best communication medium ever created in the entire history of mankind. The Internet had to compete with the telephone service provider, particularly in challenging the audio conference facility, and the cost of long distance calls. Despite this reduced calling costs to a greater extent, but the unbeatable broadband phone or internet phone is becoming everyone's favorite, beat the competitor – the traditional phone because it is much cheaper and affordable.

VoIP, which stands for "Voice Over Internet Protocol" is now the most popular medium of communication because it charges only for calls, regulatory, tax or hidden costs such as fees put traditional phone companies. VoIP phones use broadband telephone and high-speed internet works and let you enjoy the same quality of services offered to traditional phones. You can not just call VoIP phones, high-speed Internet phone services let you enjoy high-speed data services such as data sharing, audio and video conferencing. VoIP, you are guaranteed to save a lot of demands calling and communication.

offers VoIP audio conferencing opportunities to network multiple groups or parties, no matter what their geographical locations. This allows customers to connect with their customers worldwide and to have a virtual meeting online. Today we provide VoIP calling solutions, Axvoice, Vonage, 8×8, Voxwire, Packet 8 and Voice Cafe TTCGlobalTalk among many that high quality service.

Source by Aziz Ahmed

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