Someone who dials your number, waits for the machine and then hangs up and calls over and over again every . If you call someone more than 3 times in a row, it is considered Re-dialing.
Person 1: 1045 He's called me 6 times in the last minute. *Ignore*
1046 He's calling me again, it's going on 7. *Ignore*
Person 2: Man he's a real Re-dialer.