The system operation is based on the off- line work of a base station with MSC software switch and HLR
register . The system software initiates the base station operation . A cell (hereinafter – internal network) is
formed here. Cell phones located within its range will detect the strong channel activation and start the
login process. Their IMSI, IMEI, TMSI identifiers received in the real GSM/UMTS network, will be
transmitted to the system.