Method to challenge cell phone user for fraudulent use
US7373137B2 · kind B2 · utility
7Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2005 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Jun 21, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/673
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and system for monitoring calls being made from a cellular phone and preventing calls being made to unauthorized numbers, as defined by the owner of the cellular phone. A security challenge is issued to a cell phone user when a suspicious, previously unknown telephone number is attempted to be called. Approved/safe numbers and/or area codes are stored within the phone and/or in a subscriber's account accessible and updated via the Internet. If the user is unable to provide the correct security code in response to the challenge, the user is prevented from making the call to the particular number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.