Survivable phone behavior using SIP signaling in a SIP network configuration
US8018848B2 · kind B2 · utility
6Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2008 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | May 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Provided are methods, devices, and systems for maintaining a SIP survivable User Agent. The present invention is adapted to allow the User Agent to detect the status of the network, thus providing the User Agent to perform failover/failback operations. The User Agent may be adapted to determine the status of the network based on its own monitoring mechanisms and/or based on messages received from other network components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.