The application makes it easy to register and use the 3g service of Viettel in Vietnam.
[HOW TO USE] :
_ First, tap the button "Help" to phone number lookup respective 3G services you need to activate.
For example: Mobile Internet is 191.
_ Next, tap the button "Settings" .Select country is Viet Nam - and enter the number 191 in the "Enter Phone Number" .Tap "Save" and "OK".
_And Select the button "Mobile Internet" - will send the application to register and activate Mobile Internet services.
_To activate other services, you do the same as above.