Dich Vu Vien Thong Vasontel Joint Stock Company Address: No 2 Chua Boc, Trung Tu Ward, Dong Da District, Ha Noi City Enterprise code: 0106828869 Phone: 0932033320 Representative: Pham Khanh Hung Adress: Civil Group 44, Trung Hoa Ward, Cau Giay District, Ha Noi City Trung Tu Ward, Dong Da District, Ha Noi CityFounding date: 21 - 4 - 2015