Virtual private network system and method using voice over internet protocol
US6718030B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2000 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Apr 16, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2207/35
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for providing a private telephone network using Voice over Internet Protocol includes an addressing scheme that supports two levels of numbers, an Internet name that identifies individual users and a Directory number, which allow the network supported by a plurality of switches to function as if the multiple customers are being served by a single switch. The system of the present invention includes a gateway in communication with both a Public Switch Telephone Network and users of the private network; a call agent in communication with the gateway for processing different requests received at the gateway; a server-based interface including a Directory Server for translating between the Internet name (Network Address) and a Customer address and a Domain Name Server for translating between the Internet name (Network Address) and an Internet Protocol Address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.