Malicious Call Identification and Determination for Prepaid Card Services
Original Publication Date: 2001-Jan-01
Included in the Prior Art Database: 2003-Jul-23
AbstractMore and more subscribers are pestered and bothered with malicious calls from persons that use prepaid cards from fixed and mobile operators. These calls cannot be back-traced to the caller because no caller identification is possible. More and more 'stalkers' are using this technique to remain undiscovered.
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Information / Kommunikation
Malicious Call Identification and Determination for Prepaid CardServices
Idee: De Groof Bart, B - Herentals
More and more subscribers are pestered and bothered with malicious calls from persons that useprepaid cards from fixed and mobile operators. These calls cannot be back-traced to the callerbecause no caller identification is possible. More and more 'stalkers' are using this technique toremain undiscovered.
Until now, there is no solution available. Prepaid cards are intended to keep the caller unknownto the service provider, however this should not be abused for malicious purposes.
The idea is, that an indirect solution, which discovers the identity of the malicious caller ordiscourages him from using prepaid cards maliciously. Once the malicious call has been identifiedand requested by the called party (ISDN signaling), the call credit is blocked and marked withdate/time, the called party, calling number, prepaid card number, mobile equipment numberand/or IMSI number. The malicious caller now has two options:
1 st : He buys a new card, but this will not be appreciated, because next time he calls maliciously,the credit will be blocked again. This should really discourage him.
2 nd : He calls the service operator and complain that his service does not work. At this moment themalicious caller could be identified eg. by asking for a bank account or home-address to refundthe lost call credit or transfer the call to the police.