CallerID encoded!!

As we all know Caller ID gives the receiver information about whose is calling, but not all of us know that it is possible to hide your real identity with a name of your choice.This method is called spoofing.
I don't want to mix this with the name from your contact,displayed when your friend calls you.This method is for changing the number that will be displayed as caller ID into a name of your choice though you are a anonymous user.
This service is being provided by some websites for free, free in the sense you have to just hear a ad before your call was actually dialed, such Free Spoofing provides you the ability to Spoof your ID simply just like that.