Method and apparatus for PSTN-based IP active call recovery and re-routing
US7613170B1 · kind B1 · utility
35Cited by
4References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2004 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Sep 6, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/1225
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for rerouting IP telephony call information. The system includes an existing IP telephony call, the telephony call originating at a first IP telephony phone. A second IP telephony phone receiving the IP telephony call from the first IP phone and a network routing condition, the routing condition causing the IP telephony call to be rerouted. A switchover instruction, the switchover instruction initiating a switchover of the existing IP telephony call to a PSTN.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.