3-Way call detection system and method
US6895086B2 · kind B2 · utility
49Cited by
39References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2002 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Oct 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/56
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a three-way call detection system and method for detecting the addition of a third party to a pre-existing telephonic connection between a first party and a second party. The system comprises a meter for measuring the amplitude of a line voltage of a telephonic connection between a first party and a second party.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.