17. The method of claim 14 , wherein said first predetermined number and said second predetermined number are equal.
14. A method for creating a ternary bitmap of an audio database from an outbound call, the method comprising the steps of: a) computing a binary fingerprint bitmap of the dataset; b) deleting a first number of samples from the dataset; c) after step (b), computing another binary fingerprint bitmap of the dataset; d) repeating steps (b) and (c) a plurality of times to create a plurality of binary fingerprint bitmaps; and e) combining the plurality of binary fingerprint bitmaps into the ternary bitmap, where each bit in the ternary bitmap is determined as follows: e.1) If a bit is 0 (zero) in a first predetermined number of the plurality of binary bitmaps, set the bit in the ternary bitmap to 0 (zero); e.2) If a bit is 1 (one) in a second predetermined number of the plurality of binary bitmaps, set the bit in the ternary bitmap to 1 (one); and e.3) Otherwise, set the bit of the ternary bitmap to *, wherein * is a Don't Care bit.