Convertor shared by multiple virtual private networks
US7593388B1 · kind B1 · utility
8Cited by
9References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2003 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Jun 9, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/66
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A VPN converter for interfacing two or more VPNs to an external network receives information relating to a communication session between an entity in any of the VPNs and the external network and converts a format such as an encoding or transmission format of the information, e.g. between VoIP packets and TDM signals for the PSTN. The converter is under the control of a call server and carries out routing and NAT functions. It determines which VPN the information relates to. By sharing the call server and converter between many VPNs, the amount of equipment can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.