Make free calls wordwide

Here is a interesting site where u can make 10 minutes of free call anywhere in the world.
step 1.-Log on to MOBIVOX.COM
step 2.-Register.
step 3.-Confirm your e mail id by clicking on the link in mail sent by mobivox to you.
step 4.-Now log on to your mobivox account and you are done.

You can use this trick multiple times using the same phone number,all you need to do is have different e mail id for every sign up.

So enjoy calling.And please do comment on this trick so that i can help all you readers better.