Do you remember the good old days where you have to seek the assistance of an International operator to get a call through another country? Well today, Yahoo and Skype have made all that possible. And get this. They don’t cost you a penny.

The thing here is, they must have the software too. Yahoo Messenger and Skype initially offered free calls. But of course, we all know that for every feature follows money issues. But not all is lost. Like for Yahoo, you can still text to anyone in the world. But as far as voice calls, they are limited to actual subscribers who are signed up with them.