Method for detecting and reducing fraudulent telephone calls
US6442265B1 · kind B1 · utility
23Cited by
11References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1999 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | May 6, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2215/0148
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The losses sustained by telecommunications service providers attributable to unpaid, long-duration calls are reduced if such calls are carefully monitored. Upon the determination that a call might be fraudulent, the circuits carrying the call through a network or switching system comprising the network are automatically identified. The determination that a call might be fraudulent is forwarded to an administrator and, using information on the circuits carrying the call, the administrator can take affirmative steps to either tear down the call or further investigate whether the call is fraudulent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.