In order to reliably ensure the high quality of cellular mobile services provided by the operator, it is necessary to constantly measure and monitor various parameters of cellular networks in accordance with the standards: ETSI TS 102250-2. Monitoring the state of the cellular networks of mobile communication (CNMC) allows to identify problem areas in time, as well as to eliminate possible problems before they occur, while neglecting of the CNMC monitoring sometimes leads to disastrous consequences, up to the network section goes out of service, which is extremely important to ensure the reliability of the systems of automation, telemechanic and data transmission for railway vehicles. This work considers the problems of evaluating the most representative KPIs for CNMC, by using modern software complexes to measure and monitor KPIs in 2G (GSM-R), 3G, 4G, Wi-Fi networks. Since in recent years, smartphones have started to operate with multiple active SIM card slots with Dual Sim Full Active (DSFA) technology, which is small, low cost and have a set of installed programs, such smartphones can be used to easily and efficiently monitor CNMC of multiple operators. At the same time, if GSM-R is the main operator, then other CNMC operators create electromagnetic interference and it is possible to evaluate the electromagnetic compatibility (EMC) in the operation of all CNMC. This work presents modeling experimental results obtained by using software complexes for monitoring KPI of 2G (GSM-R), 3G, 4G, Wi-Fi networks on the Latvian Railway.