Response from: Denny

I think you're being generous in calling VoipBuster "Free". If I understand correctly, the way it works is you have to put $10 EUR (about $15 US) and that qualifies you for a maximum of 300 minutes of "free" calls per week (each call limited to one hour) to specific locations for a few months. Then you have to "top up" (put in another $15) to make more "free" calls. When I do that math, it sounds more like I'm paying $60 per year for a limited amount of "free" calls. Wikipedia says "company continuously increases its prices in some hidden ways. It changes terms constantly without notice" and "Latest feature seems that the 10 euros you pay to get 'free nations' can no longer be used as credit, you lose the money after 90 days. Any non-free destinations need a separate 10 euro credit." In short, caveat emptor.

Response from: Dameon Welch-Abernathy

These are excellent points. The company behind VoipBuster and others has done some pretty squirrelly things with regards to Terms of Service, particularly on their "free" service. Personally, I stick with services like Skype or Gizmo Project where the per-minute charges are obvious.