구로구 콜센터의 경우 1∼6층, 7∼10층, 11층, 13∼19층으로 분류해 확진자 확인 효율성을 극대화했다.
In the case of Guro-gu call centers, they have been classified into 1st to 6th floors, 7th to 10th floors, 11th floors, and 13th to 19th floors to maximize the efficiency of confirmed cases.