Methods and apparatus for facilitating remote communication with an IP network

• US 7,532,614 B2
• Filed: 09/24/2002
• Issued: 05/12/2009
• Est. Priority Date: 09/24/2002
• Status: Expired due to Fees

• Current Assignee: Unify Inc. (Atos SE)
• Original Assignee: Siemens Communications Incorporated (Siemens AG)
• Inventors: Ruyle, Kenney, Punjabi, Anil, Ruyle, Michael
• Primary Examiner(s): Pham, Chi H.
• Assistant Examiner(s): HOM, SHICK C
• Application Number:
  US10/253,739
• Publication Number:
  US 20040057435A1
• Time in Patent Office: 2,422 Days
• Field of Search: 370/235, 370/352, 370/389, 370/392, 370/401, 370/475, 370/395.52, 370/395.5, 370/395.51
• US Class Current: 370/352
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 2012/6472 Internet

Abstract

A system, method, apparatus, and computer program code for facilitating communication via an IP network. According to some embodiments of the present invention, a proxy device is positioned topologically between an IP enabled communication device (e.g., an IP telephone) and an IP based network. The proxy device may establish a remote access connection to the network before or after receiving a request from the IP enabled communication device to communicate to or via the network. The proxy device then facilitates communication between the IP enabled communication device and the network. In addition, the proxy device may modify source and/or destination IP addresses in messages or other communications received from the IP enabled communication device prior to sending such messages or other communications to the network and may modify source and/or destination IP addresses in messages or other communications received from the network prior to sending such messages or other communications to the IP enabled communication device.

Claims

1. A method for facilitating communication between IP enabled communication devices over a network, comprising:

establishing a connection to a network by a proxy device such that a first IP address is received by said proxy device as part of said connection;

authenticating said proxy device with a gatekeeper device that controls communication with a second IP enabled device associated with said network;

receiving, by the proxy device, a request from a first IP enabled communication device to connect to said network, wherein said first IP enabled communication device is associated with a second IP address;

receiving a communication from said first IP enabled communication device by the proxy device, said communication using said second IP address as a source address and a third IP address as a destination address; and

sending said received communication having said second IP address as the source address and said third IP address as the destination address from said proxy device to the second IP enabled communication device, said sent communication using said first IP address as the source IP address and a fourth IP address as the destination address for said communication being sent to said second IP enabled communication device.

2. The method of claim 1, wherein said network include an IP telephony network.

3. The method of claim 1, wherein said first IP enabled communication device is an IP enabled telephone.

4. The method of claim 1, wherein said device associated with said network functions as a gatekeeper for said network.

5. The method of claim 1, further comprising:

facilitating communication between said IP enabled communication device and a second IP enabled communication device, wherein said second IP enabled communication device is associated with a fifth IP address.

6. The method of claim 1, further comprising:

receiving a communication from said first IP enabled communication device, said communication using said second IP address as a source address and said third IP address as a destination IP address; and

sending said communication to said second IP enabled device, said communication using said first IP address as a source IP address and said a fifth IP address as a destination IP address for said communication being sent to said second IP enabled device.

7. The method of claim 6, further comprising:

receiving a communication from said second IP enabled communication device, said communication using said fifth IP address as a source IP address and said first IP address as a destination IP address for said communication being received from said second IP enabled communication device;

sending said communication to said first IP enabled communication device, said communication using said second IP address as a destination IP address and said third IP address as a source IP address for said communication being sent to said first IP enabled communication device.

8. The method of claim 1, wherein said facilitating communication between said first IP enabled communication and a said first device associated with said network includes receiving a communication from said first device associated with said network using said fourth IP address as a source IP address and said first IP address as a destination IP address and sending said communication to said first IP enabled communication device using said second IP address as a destination IP address and said third IP address as a source IP address for said communication being sent to said first IP enabled communication device.