Ki?n t?o xã h?i s? H? t?ng s? Tài chính s? Gi?i pháp s? N?i dung s? An ninh m?ng Nghiên c?u s?n xu?tViettel Group's pinnacle affiliate Viettel Telecom is at present the dominant community operator with the biggest market share in Vietnamese telecommunications services market place.[5] For 30 decades, Viettel has developed from a design enterpr… Read More