... services from VinaPhone and MobiFone, Internet ADSL MegaVNN service, landline phone service, International Direct Dial (IDD) service, 171 and 1718 Voice over Internet Protocol (VoIP) phone services, ... services, data transmission services basing on Vinasat-1 and Vinasat-2 satellites, private channel leasing services,… In the field of Posts, VNPT is proud to be a key service provider with a nationwide ... value-added products and services with the quality at international standards, maintaining VNPT’s position as a leading telecommunication – IT service provider in VietNam market VNPT is prestigious...