dtac to celebrate 2nd anniversary for wifi services. The wifi those were provided in most popular space e.g. department store, community center and let dtac customers can connect and surf internet anywhere around there in concept of 'Walk & Play'.When dtac want to give a gift to their customers in 2nd year anniversary occasion. We installed the dtac wifi detectors around the store. When customer who has connected to dtac wifi walk nearby the spot that we have marked. Our surprise team were walki...