How to call your friends with their own number

Hello Friends after "Make Free Phone Calls From PC to mobile for free" hack today I am sahring With you a extremely Nice Prank or you can simply say Hack i.e "How To Call Your Friends From THeir Own Cell Number".
Mobile hack to call your friends:

1. Go to http://www.mobivox.com and register there for free account.

2. During registration, remember to insert Victim mobile number in "Phone number"/

3. Complete registration and confirm your email id and then login to your account. Click on "Direct WebCall".

4. You will arrive at page shown below. In "Enter a number" box, select your country and also any mobile number(you can enter yours). Now, simply hit on "Call Now" button to call your friend with his own number.

5. That's it. Your friend will be shocked to see his own number calling him. I have spent last two days simply playing this cool mobile hack prank.