Methods and systems for detecting IP route failure and for dynamically re-routing VoIP sessions in response to failure
US7864665B2 · kind B2 · utility
6Cited by
4References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2004 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Feb 7, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems for detecting IP route failure using a request-reply protocol, such as address resolution protocol (ARP), and for dynamically re-routing VoIP sessions in a VoIP device in response to failure of an IP route are disclosed. A plurality of IP routes are established between a first VoIP device and a second VoIP device. VoIP sessions are assigned to the IP routes. ARP is used to detect a failure of an IP route. In response to detecting a failure of at least one IP route, VoIP sessions are rerouted from the failed IP route to an alternate IP route.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.