Artiza Networks, Inc. announced that Nokia Corporation (Nokia) has selected the DuoSIM-5G load tester to validate the performance of their newest generation of 5G network equipment. Since 2011, Nokia has used Artiza's award-winning line of DuoSIM base station testers to conduct thorough performance testing of their most advanced network equipment. Nokia's decision to adopt the latest model, the DuoSIM-5G gNodeB load tester, carries the relationship between the two companies into a new generation of mobile networks. The DuoSIM-5G, like its predecessors the DuoSIM and DuoSIM-A, is a wrap-around performance testing solution that simultaneously simulates massive numbers of 4G and 5G devices as well as 4G and 5G core networks. Designed for the world's most advanced testing, the DuoSIM-5G provides top-tier vendors like Nokia a range of powerful testing capabilities including high capacity testing with mixed traffic models, support for O-RAN eCPRI, mmWave and sub-6 frequency ranges, Dual Connectivity, Carrier Aggregation, and various MIMO schemes.