System and method for real-time fraud detection within a telecommunications system

• US 7,058,166 B2
• Filed: 03/26/2003
• Issued: 06/06/2006
• Est. Priority Date: 02/24/1997
• Status: Expired due to Fees

• Current Assignee: SBC Properties, L.P.
• Original Assignee: SBC Properties, L.P.
• Inventors: McGuire, Michael Joseph, Hatlak, Michael Joseph, Betts, Judy Lynn
• Primary Examiner(s): Tieu, Benny Quoc
• Application Number:
  US10/401,099
• Publication Number:
  US 20030228008A1
• Time in Patent Office: 1,168 Days
• Field of Search: 379/188, 379/189, 379/192, 379/196, 379/207.04, 379/111, 37911201-1121, 37911401-11429, 37911501-11503
• US Class Current: 379/192
• CPC Class Codes: H04L 63/14 for detecting or protecting against malicious traffic
• CPC Class Codes: H04M 15/00 Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
• CPC Class Codes: H04M 15/47 Fraud detection or prevention means
• CPC Class Codes: H04M 2215/0148 Fraud detection or prevention means
• CPC Class Codes: H04M 3/2218 Call detail recording
• CPC Class Codes: H04M 3/36 Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks

Abstract

Real time detection of the fraudulent use of a telecommunications network is accomplished by analyzing data for each call that is occurring within the network. A signal protocol receiver is used to collect signaling protocol for each call that is occurring within the network. The Signaling protocol data is collected, decoded and formatted into call information records (CIRs). The CIRs contain various operator specified parameters for each call that is occurring within the network. The CIRs are compared to operator defined thresholds. If any of the CIRs exceeds the thresholds, an alert is generated. The alerts are stored in a database where the operator can analyze them and take the appropriate corresponding action to resolve the alert. The alerts and the CIRs are archived in a database so that trends of fraudulent use can be detected and prevented. This method of fraud detection provides for the effective analyzation of every call that is occurring within the network. Accordingly, no call go unanalyzed and ideally no fraud goes undetected. Additionally, the method does not impose an additional load on the network switching equipment and therefore results in a better quality of transmissions.

Claims

1. A method for analyzing a telecommunication, the method comprising:

(a) collecting signaling protocol data for a telecommunication using a signal protocol receiver that does not switch the telecommunication, including collecting in-band signaling protocol data from switches and collecting out-of-band signaling protocol data from at least one signal transfer point; and

(b) analyzing the signaling protocol data during the duration of the telecommunication.

2. The method of claim 1, further comprising canceling the telecommunication in response to (b).

3. The method of claim 1, further comprising generating an alert in response to (b).

4. The method of claim 3, wherein the alert is in the form of audio, visual, or remote notification.

5. The method of claim 3 further comprising storing the alert in a database and maintaining the alert in the database for a predetermined period of time.

6. The method of claim 1, further comprising storing the signaling protocol data in a database and maintaining the signaling protocol data in the database for a predetermined period of time.

7. The method of claim 1, further comprising correlating the signaling protocol data into a call information record.

8. The method of claim 7, wherein the call information record contains at least one of the following parameters:

originating telephone number, terminating telephone number, billing type, using duration, aggregate duration, and call volume.

9. The method of claim 1, wherein (b) comprises comparing the signaling protocol data to a pre-established threshold.

10. A system for analyzing a telecommunication, the system compnsing:

a signal protocol receiver that is operative to collect signaling protocol data for a telecommunication, including collecting in-band signaling protocol data from switches and collecting out-of-band signaling protocol data from at least one signal transfer point, wherein the signal protocol receiver does not switch the telecommunication; and

a processor coupled with the signal protocol receiver, the processor being operable to analyze the signaling protocol data during the duration of the telecommunication.

11. The system of claim 10, wherein the processor is further operative to cancel the telecommunication.

12. The system of claim 10, wherein the processor is further operative to generate an alert.

13. The system of claim 12, wherein the alert is in the form of audio, visual, or remote notification.

14. The system of claim 12, wherein the processor is further operative to store the alert in a database.

15. The system of claim 10, wherein the processor is further operative to store the signaling protocol data in a database.

16. The system of claim 10, wherein the processor is further operative to correlate the signaling protocol data into a call information record.

17. The system of claim 16, wherein the call information record contains at least one of the following parameters:

originating telephone number, terminating telephone number, billing type, using duration, aggregate duration, and call volume.

18. The system of claim 10, wherein the processor is further operative to compare the signaling protocol data to a pre-established threshold.