Tracing of a malicious call

• US 20030148754A1
• Filed: 01/13/2003
• Published: 08/07/2003
• Est. Priority Date: 03/17/2000
• Status: Active Grant

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Ranta, Tarja- Leena
• Granted Patent: US 7,162,225 B2
• Time in Patent Office: Days
• US Class Current: 455/411
• CPC Class Codes: H04M 3/2281 Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls
• CPC Class Codes: H04Q 11/0435 Details
• CPC Class Codes: H04Q 2213/13091 CLI, identification of calling line
• CPC Class Codes: H04Q 2213/13097 Numbering, addressing
• CPC Class Codes: H04Q 2213/13098 Mobile subscriber
• CPC Class Codes: H04Q 2213/13103 Memory
• CPC Class Codes: H04Q 2213/13106 Microprocessor, CPU
• CPC Class Codes: H04Q 2213/13176 Common channel signaling, CCS7
• CPC Class Codes: H04Q 2213/13209 ISDN
• CPC Class Codes: H04Q 2213/13284 Call tracing
• CPC Class Codes: H04Q 2213/13345 Intelligent networks, SCP
• CPC Class Codes: H04Q 3/0029 Provisions for intelligent networking
• CPC Class Codes: H04Q 3/72 Finding out and indicating number of calling subscriber

Abstract

The invention relates to tracing of a malicious call to be implemented in a telecommunications network, especially in a mobile communication network. The inventive idea is that the called subscriber activates the tracing service in real time on finding the call to be malicious. One way of activating the tracing service is a service code sent from the called subscriber'"'"'s terminal equipment and defined by the operator. The means required for implementing the service may be located according to the operator'"'"'s wishes either in a mobile services switching centre or in an intelligent network.

Claims

1. Method of tracing a malicious call in a mobile communication network,

characterized in that

means are arranged in the network for processing the malicious call, and that in the means

a service request is received, which the called subscriber sends in real time from his subscriber'"'"'s terminal equipment,

the service request is analysed,

based on the analysis of the service request, tracing is activated in the network in order to find out the identity of the malicious caller,

the result of the process is reported.

2. Method as defined in claim 1, characterized in that the service request given from the called subscriber'"'"'s terminal equipment is a service code defined by the operator.

3. Method as defined in claim 2, characterized in that at least one service code is defined for the called subscriber.

4. Method as defined in claim 1, characterized in that in connection with the tracing an analysis of the calling subscriber'"'"'s number is performed.

5. Method as defined in claim 1, characterized in that the means for processing the malicious call are located in a mobile services switching centre.

6. Method as defined in claim 1, characterized in that the means for processing the malicious call are located at the service control point of an intelligent network.

7. Mobile communication system including a mobile services switching centre and several pieces of subscribers'"'"' terminal equipment, between which a connection can be set up,

characterized in that the switching centre includes

means for processing a malicious call, which means in response to a service request activated by a called subscriber from his terminal equipment

perform tracing of the calling subscriber in order to find out the identity of the calling subscriber, and

form a monitoring report.

8. Mobile communication system including intelligent network architecture and including a mobile services switching centre, a service control point and several pieces of subscribers'"'"' terminal equipment, between which a connection can be set up,

characterized in that the service control point in the network includes

means for processing a malicious call, which means in response to a service request activated by a called subscriber from his terminal equipment

perform tracing of the calling subscriber in order to find out the identity of the calling subscriber

form a monitoring report.