Abstract: In the light of many problems like the low accuracy on identification, the big limitness on the object of identification, taking more t ime, etc. for the arithmetic of traditional callfingerprint using the method which combines the callround identification with the IMEI identification, this thesis deals with an arithmetic which is based on the match of Hausdorff’s distance to improve the accuracy of identification and the extending of the scope of object.

Key words: callfingerprint, repeat network access, Hausdorff di stance, transfer probability matrix