VoIP call control proxy

• US 20020095599A1
• Filed: 01/12/2001
• Published: 07/18/2002
• Est. Priority Date: 01/12/2001
• Status: Abandoned Application

• Current Assignee: Oath Inc. (Verizon Communications Inc.)
• Original Assignee: Oath Inc. (Verizon Communications Inc.)
• Inventors: Hong, Hyungkeun, Cho, Wongyu
• Application Number:
  US09/760,347
• Publication Number:
  US 20020095599A1
• Time in Patent Office: Days
• US Class Current: 726/12
• CPC Class Codes: H04L 63/0281 Proxies
• CPC Class Codes: H04L 63/029 Firewall traversal, e.g. tunnelling or, creating pinholes

Abstract

A method and associated system for exchanging data with computers within a secure network. The present invention includes a first computer, which transmits data to a second computer. The second computer receives the data and transmits them to a third computer, which is within a secure network. The data is transmitted to the third computer over a connection originated from within the secure network, which allows the data to pass through network security devices, such as firewalls.

Claims

1. A method for transmitting data comprising:

establishing a first communication connection to a first computer within a secure network;

receiving a communication request initiated by a second computer outside said secure network;

establishing a second communication connection to said second computer; and

transmitting a control message between said first computer using said first communication connection and said second computer using said second communication connection.

2. The method of claim 1, wherein a firewall separates said first computer from said second computer.

3. The method of claim 1, wherein said first and said second communication connections comprise a Transmission Control Protocol (TCP).

4. The method of claim 1, wherein said second computer comprises a personal computer using Transmission Control Protocol (TCP).

5. A system for transmitting data to a computer inside a secure network comprising:

a first computer outside said secure network;

a second computer outside said secure network and communicating with said first computer; and

a third computer inside said secure network and communicating with said first computer where electronic content can be transmitted from said second computer to said third computer through said first computer.

6. The system of claim 5, further comprising a firewall coupled between said third computer and said second computer.

7. The system of claim 5, further comprising a fourth computer for receiving a registration package from said third computer inside said secure network.

8. The system of claim 7, wherein said registration package comprises transport data and a unique ID.

9. The system of claim 5, wherein said first computer and said third computer comprise a personal computer (PC).

10. The system of claim 5, wherein said second computer comprise a computer capable of initiating a communication.

11. The system of claim 5, wherein said first computer comprises a proxy computer for relaying electronic content between said second and said third computers.

13. The method of claim 12, wherein said electronic content comprises a call set up control message.

14. The method of claim 12, wherein a firewall separates said first computer from said proxy.

15. The method of claim 12, wherein said communication connection comprises a Transmission Control Protocol (TCP).

16. The method of claim 12, further comprising registering status information between said first computer and a register server.

18. The method of claim 17, wherein said status information comprises a transport address.

19. The method of claim 17, wherein said electronic content comprises a call set up control message.

20. The method of claim 17, further comprising transmitting electronic content from said first computer to said proxy and from said proxy to said second computer.

12. A method for establishing a communication session comprising:

establishing a communication connection between a first computer within a secure network and a proxy;

providing a second computer outside of said secure network an address to said proxy;

transmitting electronic content between said first computer and said proxy; and

transmitting said electronic content between said proxy and said second computer.

17. A method comprising:

registering status information from a first computer inside a secure network;

establishing a first communication connection between a proxy and said first computer;

transmitting said status information to a second computer;

establishing a second communication connection between said second computer and said proxy; and

transmitting electronic content from said second computer to said proxy and from said proxy to said first computer.