Virtual private network system and method using voice over internet protocol

  • US 6,718,030 B1
  • Filed: 08/10/2000
  • Issued: 04/06/2004
  • Est. Priority Date: 08/10/2000
  • Status: Expired due to Fees
First Claim
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1. A telephone network system for providing a private network comprising in combination:

  • a gateway in communication with a Public Switched Telephone Network and with a plurality of private users;

    a call agent in communication with said gateway for processing a plurality of requests received for the private users at said gateway;

    a Directory Server coupled to the gateway, the Directory Server translating between Network Addresses for the private users and Customer Addresses for requests within the plurality of private users, wherein the Customer Addresses are statically assigned to the private users, and wherein the Directory Server dynamically alters which Network Addresses correspond to the Customer Addresses based on locations of the private users within the private network; and

    a Domain Name Server coupled to the gateway, the Domain Name Server translating the Network Addresses to Internet Protocol addresses, wherein associations between the Network Addresses and the Internet Protocol are statically assigned.

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