Call spoofing is the process of making FAKE CALLS. You can call your friend with his own number. Also, you can call him from any others number using only your phone and Internet.
On Internet you will get various Free and Paid Call Spoofing Services, One of them we have tested and going to Demonstrate here. A website called 'Crazycall.net' is giving to service to do Free Spoofed Calls in any Country Free of Cost and Yes it is as much easy as to prepare sandwich.