Viettel Software is a subsidiary of Viettel Telecom Corporation.

Viettel Software is a subsidiary of Viettel Telecom Corporation. Main tasks: Researching, building and deploying information technology systems for Viettel in the field of Telco: BSS core (Bussiness Support Systems) 

Sales, billing and customer care systems; BI & BDA (Business Intelligence & Big Data Analytics) - A large data mining system serving the business of intelligent telecommunications.