You are free to have this leak but bear in mind, it's not mine, so don't bother me if the links/program/source/whatever stop working. I take no responsibility of this, use at your own risk.
I've found that not a lot of people actually know about this. With this site you can make UNLIMITED free calls/text to any number, anywhere in the world!
All you need is Java. All this site asks is that you turn off adblock, but there aren't really any distracting/annoying ads.