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UNDERSTANDING TELECOMMUNICATIONS

• The global telecommunications network – the largest and most complex technical system that man has created – makes up a substantial part of a country´s infrastructure and is vital to the development of that country.
• By telecommunications we mean here all processes that render it possible to transfer voice, data and video with the help of some form of electromagnetic system, including optical transfer methods.
• The telecommunications networks are mainly composed of nodes (exchanges) and links
• Telephony can manage relatively poor transmission quality because of the redundancy built into natural language and speech, and because people engaged in a telephone conversation can easily overcome temporary disturbances and interruptions by repeating what they have just said. On the other hand we find a difficult to accept delays in a telephone connection. Data traffic, by contrast, is relatively insensitive to delay (within reasonable limits) whereas poor transmission quality can cause bit errors and a garbled message.
• For broadband services above 2 Mbits an elaborated packet technique called asynchronus transfer mode ATM has captured the interest of the telecommunications world.
• PSTN Public Switch Telephone Network
• PLMN Public Land Mobile Networks
• ATM Asynchronus Transfer Mode
• Network Operator or Operator is used to denote a company that administrates a telecommunications network
• A bearer service solely provides a transport system for exchanging information. By contrast, a teleservice is complete in the sense that – in addition to a transport system – it includes functions for connections, and a uniform language for communication and for shaping the messages conveyed
• Multimedia a service which contains at least two or the three service types voice, data and video, and which provides a certain degree of interactivity.
• Interactive services
  

  El retorno de la inversión en entrenamiento y capacitación de equipos gerenciales es normalmente exponencial y en minutos. Vincent Peale.

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Última modificación: 21 de Febrero de 2007