On June 29, built by the medium electricity company introduction of kunming YunGui railway hub station after GSM - R core network project smoothly.

On the day of zero, the official start of the core network debugging. Within the limited time of "skylight", construction and technical personnel to the core network for final grouping field debugging, after two and a half hours of intensive work, at 2 a.m., kunming railway hub core network on time with Beijing, xian, wuhan, chengdu, nanning and other cities railway hub connectivity.

Kunming GSM - R the national 18 core network in the core network is the last one, is also a medium electricity company and China railway group co., LTD., to participate in the construction of the first core network project, the opening of the core network signal in yunnan province, formally enter the era of high-speed rail, then the opening of the main trunk line, YunGui long kunming in yunnan province will depend on the change of network access to the railway network.

On the day of zero, the official start of the core network debugging. Within the limited time of "skylight", construction and technical personnel to the core network for final grouping field debugging, after two and a half hours of intensive work, at 2 a.m., kunming railway hub core network on time with such as Beijing, xian, wuhan, chengdu, nanning, connectivity of urban railway hub.

GSM - R system is a kind of special mobile communication, is specially designed for railway communication comprehensive special digital mobile communication