(Telecompaper) South Korean operator SK Telecom, in cooperation with Samsung Electronics, has completed the first 5G call using the 3GPP 5G Non-standalone (NSA) new radio (NR) standard and commercial 5G NR equipment that can be readily applied in a commercial 5G network. The call took place at SK Telecom's 5G testbed in its Bundang office building. The first 5G NSA-NR calls were achieved by using services that SK Telecom and Samsung jointly developed and built for the trial on 3.5GHz 5G NR radio, 4G LTE radio and NSA core.