Or how about some sweet revenge like a pocket dial to the parents or probation office at the worst time that also has the entire contact list listen in?
Want to make that tweeter even more paranoid? Nothing like adding sounds to his friends phone calls to make him think there being watched and listening in. (I literally had a guy jump and hide from his ride in trashcans with this.)
You just tell what numbers you want called and by what number you wish call them.
EXAMPLE:
If you want Alice's phone to cal bob's
=====================================================
+1 (555) 555-5555 <---Destination for the call (ALICE)
+1 (666) 666-6666 <---Spoofed Caller ID (Bob)
+1 (666) 666-6666 <---Destination for the call (Bob)
+1 (555) 555-5555 <---Spoofed Caller ID (ALICE)
=====================================================
======You may keep adding contacts in the above format======
You will get 755 min. The spoofing service is awesome and you could even to these attacks from a lan line. Like in Jail.