SHANGHAI, Sep 1 (SMM) – On the afternoon of August 25, at the Guqiao Mine of Huaihe Energy Coal Company, the staff used the mobile 5G SA network to have the first high-definition voice call and the first video call in the underground coal mine with the ground personnel.
The high-definition voice and video calls were stable with clear and smooth images, which could meet the needs of underground real-time monitoring. This marked the successful application of the first 5G coal mine network in Anhui Province.
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