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3D Models of Cell Phones, smartphones, cellular phones.
Mobile phone – a mobile phone designed to work in cellular networks; uses a radio transceiver and traditional telephone switching for telephone communication within the coverage area of the cellular network.
Currently, cellular communication is the most common of all types of mobile communication, so it is usually called a mobile phone that is a mobile phone, although mobile phones, in addition to cellular phones, are also satellite phones, radio telephones and main line telephones.
A cell phone is a sophisticated high-tech electronic device that includes: a transceiver, a dedicated control controller, a display, interface devices, a battery. Most of the devices have their own unique number, IMEI – an international mobile device identifier. IMEI is assigned in the production of a cell phone and consists of 15 digits; It is recorded in the non-modifiable part of the phone’s firmware. This number itself is printed on the phone label under the battery, also on the box (package) from the phone (under the barcode). In most phones, it can also be recognized by dialing the code * # 06 # on the keyboard.
Most mobile standards use a SIM card to identify the subscriber. It is a program-controlled smart card and also has its unique IMSI identification number and an individual numeric password.
In the 1900s, Nikola Tesla issued a regular report containing the lines: “For example, with its help, a telephone subscriber at a given place can call and talk to another subscriber in any part of the Earth. An inexpensive handset in size no more wristwatches will allow him to listen everywhere, on land and at sea, speech message or performed music from any other place, no matter how far away it is. “