Method and system for implementing backup based on session border controllers
US7894410B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2007 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Feb 7, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and a system for implementing backup based on session border controllers, including: a terminal device registers to a first soft switch via a first session border controller; the terminal device detects whether a failure concerning the first session border controller occurs. If a failure occurs, the terminal device registers to the first soft switch via a second session border controller; the first or the second session border controller detects whether a failure concerning the first soft switch occurs. If a failure occurs, the terminal device registers to the second soft switch. In addition, the invention further provides a corresponding system. With the present invention, media stream can pass through the NAT and firewall on the basis of adding session border controllers in the NGN network, and by implementing dual homing of the session border controller, paralyzing of the soft switches can be prevented, or a disaster tolerance mechanism for emergency communication can be provided, when burst disaster appears to the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.