The history of telecommunications includes several periods, the first of which began in the Stone Age when people learned to speak. It was followed by postal services, pigeon service, telegraph service, telephone and radio communications, and by the end of the 20th century there appeared another one – cellular communications. It is not necessary to describe the differences between cellular communications and other means of communications as long as the average reader has already got an idea about the space propagation of radio waves and is likely to experience their influence feeling the vibration of a mobile phone in the pocket.

A mother of children who are playing in a sandpit wouldn’t cry for them from the balcony but would rather call them using her cellular phone. Business partners are always available for each other. A young man sitting in a park with his notebook and cellular phone wouldn’t carry thousands kilometers of wires in order to connect to an Internet provider. All this has become possible when using a mobile cellular communications, the creation, evolution and the future of which will be discussed further.