If u want to call from one number (ex 123456789) to your friends mobile then it’s for you. Using this trick you can call to any person with fake number which you want.
How to Dial A fake call.
step 1: Download and install the id changer application in your Android device.
step 2: After the installing application you can see this screen
step 3: Now in the first box(caller id) if you want to display your number as a 123456789 then enter 123456789
step 4: in second box (To) enter the person number whom you want to call (Ex:your friend)
if it works then share this post to your friend