Call spoofing or Caller ID Forging
 the practice of causing the telephone network to display a number on 
the recipient's caller ID displaywhich is not that of the actual 
originating station; the term is commonly used to describe situations in
 which themotivation is considered nefarious by the speaker. Just as 
e-mail spoofing can make it appear that a message came fromany e-mail 
address the sender chooses, caller ID forging can make a call appear to 
have come from any phone number thecaller wishes. Because people are 
prone to assume a call is coming from the number (and hence, the 
associated person,or persons), this can call the service's value into 
question.
On Internet you will get various Free 
and Paid Call Spoofing Services, One of them I 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 :P

Steps to Do Spoofed Call :
1.) Open Crazycall.net and
 Select Country where you want to call.
2.) Enter Number A = The Fake number you want to Display to 
Victim
3.) Enter Number B = Victim's Number
4.) Now Click "Get me a Code" . Done !
5.) On right side of page you will get A mobile number + Five 
Digit Unique Code.
6.) Now do a call from another number (say Number C) on Given 
number in Step 5.
7.) It will ask you to Enter the Code, that you get in Step 5.
8.) Done ! The Victim with Number B will Get a Call from Fake 
number A, Even you are using Number C for calling.
Tags
tecnologia
