Solomon reports that you can find the feature of everlasting credit on every Betamax products ranging from voipbuster to webcall. You stand to lose nothing as the everlasting credit never expires. With this you get one hundred and twenty days during which you can make free calls and beyond this period of time a minimum rate of one cent per minute would be charged for these places.

It was first introduced to some of their products but now has been included in their every product including voipcheap,webcall direct,voipbuster etc. You can check out the rate chart at http://www.poivy.com/en/rates.html.