Telecommunications Technology
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Telecommunication is the communication of data by various means by an apparatus such as networks, optic fibers, radio, or telephone lines. In a wide-ranging perspective, telecommunications include mobile devices, personal computers, digital networks, voice over internet protocol (VoIP), and other forms of networks that are dependent on signals transmitted over telecom lines. There are three different types of telecommunications: voice-only relationships, which include telephone services; business or commercial relationships that involve phones and other phone equipment; and public switched telephone network (PSTN) – a system that provides telephone service to the wider public through multiple phones installed throughout a metropolitan area. The last type, public utility network (PSN), links several privately owned telephone companies via a private switched telephone network (PSTN).
While telecommunications include voice and data transmissions, the term can also encompass visual media such as images and videos. They also encompass non-visual information such as corporate information, weather forecasts, and entertainment. Many people are very familiar with traditional phone networks such as landline telephones, but they might not be as familiar with “wireless” Internet access. “Wireless” Internet is a subset of “telecommunication” that includes mobile communications using Wi-Fi, cell phones, PDA’s (personal digital assistant) and other hand-held devices. Wireless Internet usually refers to Internet access that occurs over a cellular carrier’s airwaves.
The rapid growth of the mobile phone industry has paved the way for increased competition in the telecommunications field, especially for the business telecommunications industry. For example, AT&T’s “The Clear” mobile phone service provides unprecedented value to businesses that want to stay in touch at all times. The “ods” (oggling speakers) allow users to listen to live TV broadcasts and take advantage of the on-demand options offered by DirecTV. AT&T’s other offerings such as WildBlue and Boost Mobile offer the same customer service options, but for less money.
There are many other advancements in communications technology. One type of innovation that students may study is the development and implementation of new wireless Internet technologies that allow students to use computers as tools for distance education. Additionally, videoconferencing services allow students to conduct face-to-face communication seminars that include panel discussions and question and answer sessions. Video teleconferencing also uses audio-video technology to provide users with the ability to communicate via telephone and audio conferences. Other applications in telecommunications include high-speed cellular connections that allow students to download training material and view PowerPoint presentations online.
Students who specialize in the field of communications will likely be involved in the development and implementation of new transmission technologies. This may include Ethernet networks and Wide Area Networks (WANs). Ethernet Networks involves the distribution of large quantities of internal or external data in networks. Wide Area Networks connects two or more separate locations by means of electromagnetic links using packet-switching technology.
Another telecommunications networking technology that students can study is the Digital Telephone Network (DNT). DECTs utilize digital technology for telephone networks and employ packet-switching technology in order to transmit voice and data traffic. These systems replace traditional telephone networks with digitally enhanced analog (DA) lines. The analog signal consists of three components: the left, right, and center audio channels, and the information is then stored in the demodulated from within carrier circuits.
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