Free Call anywhere around the world (It's not a SCAM post)

I've a strange itch to try my hand on useful tech stuffs. This post is all about making free calls around the world. But, before I boldly claim the title of this post as it sounds, I used my mind and after thinking for sometime, I came to this conclusion. To be true, when I bought this product, I was real skeptical. Hey... wait.. I'm not endorsing anything out here. I actually contacted the company for any endorsement benefits or affiliates marketing bonus but they said they don't have that op