Introduction: The communication channel is an electrical signal or electromagnetic wave used for communication. This type of communication is called telecommunications. Telecommunication networks are collections of terminal nodes and links that are connected to establish electrical communication between terminals. The transmission link connection uses the circuit switching node, the message switching node, or the packet switching node to pass the signal over the correct link and node and arrives at the correct destination terminal.
Another point we can show the importance of telecommunications is the future of telecommunications. The telecommunications field is increasingly important in parallel with the development of telecommunications equipment. For example, in newspapers and magazines, there are news about companies and governments investing in telecommunications investment and telecommunications, as well as small mobile phones, new satellites and phones that can send images. In addition, we believe that the telecommunications field will be more important with the use of the Internet, new wireless communication systems such as iridium and global stars, and new technologies that provide Internet access via small devices and transmitted images.
Telecommunication is defined as long distance technology and communication science via electronic transmission such as cable, telephone, telegraph, radio or television. Telecommunications is an important area of ​​professional development. It is also defined as an electronic system for sending messages such as cable telegraph, telephone, radio, television and so on. The cutting edge communication technology is progressing, but the gap of communication still spreads even in the 20th century, and it has not been solved yet.
Since telecommunications are now indispensable for socioeconomic activities, the reliability and security of telecommunications services is an important issue. In our information age, information retrieval is becoming increasingly important, focusing on the integrity and reliability of the information provided and privacy protection. These different problems are important to the future of the telecommunications industry. *