During 2021, it will add the ability to measure emerging 5G networks and a range of enhancements to increase stability in dynamic mobile environments. The F-Tester, a measurement device for verifying data connectivity, is currently used by the Czech Telecommunications Office (CTO) and, more recently, by the telecommunications company CETIN. See https://fel.cvut.cz/en/aktuality/2022/cetin_f-tester