How often, instead of the expected voice of the right person in the receiver, an indifferent is heard: "The subscriber is temporarily unavailable." And if you are sure that the battery is charged, and you firmly know that this person was not going to turn off the phone, then what could be the reason for the lack of connection, why sometimes it is impossible to get through?
What it looks like - when no connection occurs:
• the corresponding sound signals and the following voice, broadcasting that "the subscriber is temporarily unavailable";
• short beep and call reset;
• no beeps, signals or messages - silence and call rejection.
If we exclude the malfunction of the telephone itself or the sim card, there remains one reason for the lack of connection - disruption in cellular communication. First you need to understand the mechanism of its work.
The essence of the mobile system is based on dividing the area into several sectors ("cells"), which make it possible to use radio frequencies multiple times. Moreover, cells that are not "in contact" with each other can use the same frequency. The quality of cellular communication depends on the frequency at which your phone operates.
When you make a call by pressing a button on your device, a radio signal emanates from it, overcoming a thorny path from several instances (operator base station, controller, switchboard, etc.) until the connection starts and the signal goes back.
Over the years, modern systems have improved the process of cellular communication and now guarantee reliability and high speed of connection. However, there are still problems. You yourself can probably give examples of when communication is lost - in the elevator, in the basement, in the subway. The reason for this lies in the massive obstacles between your device and the base station. Often, the signal cannot overcome the thickness of the earth or even thick walls; communication can be disrupted in conditions of close proximity of houses.
The reasons for the disruption of the network may lie in the banal overload of the station. For example, at the time of the New Year, everyone starts calling each other with congratulations and holiday messages, as a result, stations or switches cannot cope with the huge volume of signals, as a result of which the possibility of connecting with the desired subscriber becomes unlikely.
Communication can be disrupted due to changes in weather conditions - a large amount of precipitation, thunderstorms, hurricane.
Mechanical damage to the optical cable, failure of computers at the station cannot be ruled out.
Before calling the mobile company to which your phone is connected, check your device, perhaps restarting it will give the desired result. But even if nothing has changed, try not to be nervous and calmly explain to the operator what the problem is. The main task of any cellular company is to provide communication services that satisfy the client, and if any malfunctions occur, they, as a rule, do not depend on the human factor, and are eliminated quite easily.
