Tell me, to activate voice calls in true move, do I need to do something extra? Tariffs are 10mbs per month, the balance says that 8 baht is.

[Dmitry]

Tell me, to activate voice calls in true move, do I need to do something extra? Tariffs are 10mbs per month, the balance says that 8 baht is.

[Roy]

There seems to be a promo package to buy extra for calls, 50 baht anlim. But I didn't understand.