Its has not been very long since someone came up with an idea to mix advertisement with sms to provide absolutely FREE SMS through the internet. The result of which was a bunch of sites which sprang in various countries offering free sms among which, one of my favorite 160by2.com has been doing well in India.
Now Parrot Media, an Israeli based company founded in 2007 has taken this industry to the next step to provide absolutely free calls worldwide by mixing clever advertising tactics with it.
Now you can make FREE unlimited calls of 2-5 mins each to any landline or mobile number on planet earth. You have to register in the site to use their service.
Check out their FAQ page to know more. I have already spoken to all my friends who live abroad using this fabulous service & it works FINE !
I wonder why such a site has not been covered by blogging sites like TechCrunch yet.
Link to site - www.parrot-media.com