SK Telecom of Korea struck a blow for the vital operator goal of multivendor interoperability, announcing successful tests of a 5G Non-Standalone (NSA) Core, developed by Samsung, with 5G base stations from Nokia and Ericsson. The test took place at the company’s 5G testbed, in its Bundang offices. The MNO is in the vanguard of industry efforts to ensure there are fewer vendor lock-ins in the 5G era. It has worked with other operators, such as Orange and AT&T, to develop standard interfaces within 3GPP and NGMN processes. It is also engaged with some of the newer open initiatives, such as Telecom Infra Project, which are seeking to define uniform interfaces to allow any vendors’ gear to interoperate. The hope…