With support from Intel and Ericsson, T-Mobile US says it has completed the first 5G data and video calls
using 600 MHz spectrum, as it aims to build out nationwide availability of 5G service by 2020.
The calls were conducted on a live, commercial network, according to T-Mobile US, which has repeatedly
emphasized the importance of its 600 MHz spectrum holdings to its plan to deploy 5G across the country.
T-Mo also played up the spectrum position that it will have in low- mid-band and high-band spectrum for
5G deployment if its proposed merger with Sprint is approved.