System and method for detecting false caller ID

• US 8,744,052 B2
• Filed: 12/01/2005
• Issued: 06/03/2014
• Est. Priority Date: 12/01/2005
• Status: Expired due to Fees

• Current Assignee: SBC Knowledge Ventures LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Gruchala, Carol, Heinmiller, Wayne, Tiliks, Dianna
• Primary Examiner(s): Matar, Ahmad
• Assistant Examiner(s): Hoque, Nafiz E
• Application Number:
  US11/292,324
• Publication Number:
  US 20070127658A1
• Time in Patent Office: 3,106 Days
• Field of Search: 37914201-14206
• US Class Current: 379/142.05
• CPC Class Codes: H04M 1/571 Blocking transmission of caller identification to called party
• CPC Class Codes: H04Q 2213/13091 CLI, identification of calling line
• CPC Class Codes: H04Q 2213/13103 Memory
• CPC Class Codes: H04Q 2213/13106 Microprocessor, CPU
• CPC Class Codes: H04Q 2213/13139 Fraud detection/prevention
• CPC Class Codes: H04Q 2213/13176 Common channel signaling, CCS7
• CPC Class Codes: H04Q 2213/1322 PBX
• CPC Class Codes: H04Q 2213/13345 Intelligent networks, SCP
• CPC Class Codes: H04Q 3/0029 Provisions for intelligent networking

Abstract

A system and method for detecting a false caller ID. The system receives caller identification data and signaling system data from the call, compares the caller identification data to the signaling system data, and determines if the call has a false caller ID based on the comparison. The signaling system data may include signaling system 7 data. The system may also alert the intended recipient by modifying the properties of the call or by enacting a peripheral system to contact the intended recipient.

Claims

1. A system for identifying a false caller identification provided with a call to an intended recipient, the system comprising:

a first switch receiving caller identification data and signaling system data of the call, the first switch determining if the caller identification data includes valid information and when the caller identification data does not include valid information, the first switch providing the call to a peripheral system;

if the caller identification data includes valid information, the first switch comparing the caller identification data to the signaling system data to identify the false caller identification if the caller identification data is not consistent with the signaling system data, the first switch providing the call to the peripheral system upon detecting false caller identification, the first switch providing the call to the intended recipient if the caller identification data is consistent with the signaling system data; and

the peripheral system holding the call and contacting the intended recipient with an automated voice message providing information about the call and giving the intended recipient options of connecting the call, terminating the call, and sending the call to voicemail, wherein the peripheral system comprises a user interface that allows the intended recipient to selectively connect with the call, wherein the peripheral system stores the caller identification data for access by the intended recipient after the call is terminated;

wherein the first switch modifies the caller identification data when the false caller identification is detected based on the signaling system data, the switch modifying the caller identification data to identify the presence of false caller identification;

wherein the switch modifying the caller identification data to identify the presence of false caller identification includes modifying the caller identification data to a series of identical numbers.

2. The system of claim 1, wherein signaling system data is signaling system 7 data.

3. The system of claim 2, wherein the first switch compares the caller identification data to a jurisdiction information number.

4. The system of claim 2, wherein the first switch compares the caller identification data to a charge number.

5. The system of claim 2, wherein the first switch compares numbering plan indications with address signal information of the caller identification data to identify the false caller identification.

6. The system of claim 1, wherein the first switch is a packet switch controlling the signaling system data.

7. The system of claim 1, wherein the first switch compares the caller identification data with the signaling information before a call connection is established.

8. The system of claim 1, wherein the first switch modifies a ring of the call when the false caller identification is detected based on the signaling system data.

9. The system of claim 1, wherein the first switch is in communication with a database and compares the caller identification data with stored data in the database to detect the false caller identification.

10. The system of claim 1, wherein the first switch comprises a service switching point.

11. The system of claim 1, wherein the first switch comprises a signal transfer point.

12. The system of claim 1, wherein the first switch comprises a central office switch.

13. The system of claim 1, wherein the series of identical numbers is all nines.

14. A method for detecting a false caller identification in a call, the method comprising:

receiving caller identification data from the call;

receiving signaling system data from the call;

determining if the caller identification data includes valid information and when the caller identification data does not include valid information, providing the call to a peripheral system;

if the caller identification data includes valid information, comparing the caller identification data to the signaling system data;

determining if the call has the false caller identification based on the comparing and providing the call to the peripheral system upon detecting false caller identification when the caller identification is not consistent with the signaling system data;

providing the call to an intended recipient if the caller identification data is valid and is consistent with the signaling system data; and

the peripheral system holding the call and contacting the intended recipient with an automated voice message providing information about the call and giving the intended recipient options of connecting the call, terminating the call, and sending the call to voicemail, wherein the peripheral system comprises a user interface that allows the intended recipient to selectively connect with the call, wherein the peripheral system stores the caller identification data for access by the intended recipient after the call is terminated;

the method further comprising modifying the caller identification data when the false caller identification is detected based on the signaling system data to identify the presence of false caller identification;

wherein modifying the caller identification data to identify the presence of false caller identification includes modifying the caller identification data to a series of identical number.

15. The method of claim 14, wherein comparing the caller identification data to the signaling system data is performed before connecting the call to the intended recipient.

16. The method of claim 14, further comprising comparing the signaling system data with stored data from a database to determine if the signaling system data is consistent with the caller identification data.

17. The method of claim 14, wherein the series of identical numbers is all nines.