... environment. The greater the volatility is, the more effort the business has to take the initiative. To be able to survive and grow, businesses must develop their 6 ã Customer-oriented business: Viettel ... dominating the market shares of competitors, then Viettel will soon give way for Mobifone, Vinaphone or other companies.According to the report from the Ministry of Communications and Information, ... brands in Vietnam Post and Telecommunications - Informatics industry voted by consumers choose in the years of 200 8-2 010;Top mobile network in Vietnam with the GPRS service supply across the country,...