Vietnam''s three-largest mobile networks Viettel, MobiFone and VinaPhone
have provided mobile television services to watch matches of the World
Cup 2014 live on their smartphones for their subscribers.
Telecom providers increased 3G fees in order to reinvest in their mobile
networks, said VinaPhone deputy director Ho Duc Thang at an online
discussion organised by Infonet online newspaper on Thursday.
Viettel Telecom has been declared the most effective mobile operator in the fight against spam messages. On the other hand, Vinaphone was reported to have had the most spam messages in the same period.