Social Responsibility Modern society is the inspiration for prosperous firms. Viettel is committed to reinvesting in society through linking creation and company things to do with social things to do.Gi?y phép b?u chính V?n ba?n xa?c nh?n thông ba?o hoa?t ??ng b?u chi?nh THÔNG TIN LIÊN H???ng nh?p ??ng ký D?ch v? di ??ng World-wide-web / Truy