BJL14 East which was opened for trial operation on December 28 has 2G, 3G and 4G mobile communication signal coverage at Day One, becoming one of the most fully covered metro lines in Beijing Metro Network.
As we know from responsible person in BJMTR, with joint effort of many parties, BJMTR reached cooperative agreement with Beijing Mobile, Beijing Unicom and Beijing Telecom to bring 2G, 3G and 4G coverage to BJL14 East to provide maximum riding experiences to passengers.