Ez így ebben a formában nem igaz. :)
Freedays
When you buy credit you receive a number of 'Freedays'. The number of Freedays gives you the number of days you can call for free to certain destinations marked as 'FREE' in the rates list; (without using the credit you bought). The number of Freedays you get depends on the payment method you select.
Forrás:justvoip
freevoipdeal.com
Ehhez, hozzájön, hogy a "FREE" országok elég gyakran váltakoznak. :P