Russian mobile operator Megafon has expanded the coverage of its LTE network in Moscow Metro to tunnels in five sections of the Ring Line.
The operator plans to cover all tunnels of the Moscow metro by the end of 2019. Megafon first launched its LTE services in the Moscow Metro in 2016.
Source: https://www.telecompaper.com/news/megafon-expands-lte-network-in-moscow-metro--1265149