Methods, systems, and computer program products for session initiation protocol (SIP) fast switchover
US8051189B2 · kind B2 · utility
2Cited by
2References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2005 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Oct 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are methods, systems, and computer program products for notifying a Session Initiation Protocol (SIP) entity of a fast switchover event. According to one method a first SIP entity having an active host and a standby host is provided. At the active host a SUBSCRIBE message is received from a second SIP entity for subscribing to a fast switchover notification service. The standby host is switched to an active mode. In response to switching the standby host to active mode, a NOTIFY message is sent to the second SIP entity for notifying the second SIP entity that the standby host is operating in active mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.