System, method, and computer program product for managing a carrier exchange network

• US 6,480,898 B1
• Filed: 09/10/1999
• Issued: 11/12/2002
• Est. Priority Date: 09/10/1999
• Status: Expired due to Term

• Current Assignee: Far North Patents, LLC
• Original Assignee: Array Telecom Corporation
• Inventors: Zadeh, Row J., Scott, Mark
• Primary Examiner(s): Etienne, Ario
• Application Number:
  US09/393,288
• Time in Patent Office: 1,159 Days
• Field of Search: 709/238-245, 709/204, 709/206, 709/223, 709/205, 709/220, 709/218, 709/226, 709/228, 709/229, 709/227, 709/249-250, 370/400-401, 370/467-468, 370/351-356, 370/251, 370/474, 370/522
• US Class Current: 709/238
• CPC Class Codes: H04L 41/00 Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
• CPC Class Codes: H04L 65/103 in the network
• CPC Class Codes: H04L 65/104 in the network
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1106 Call signalling protocols; H.323 and related
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04M 7/0096 Trunk circuits

Abstract

A system, method, computer program product system for providing a carrier exchange (CX) backbone to a plurality of IP carriers to pass on their over-flow traffic to another participating carrier. The system and method offers a quality-based voice over Internet Protocol (VoIP) call routing management system with centralized call accounting. The system and method connects potentially incompatible IP networks (e.g., ATM, Frame Relay, etc.) to a single backbone operated by a CX provider. The barter-like system and method is mutually beneficial to all participants by providing low cost to originating gateways and additional revenue for terminating gateways in the form of increased minutes.

Claims

1. A method for providing quality-based voice over Internet Protocol (VoIP) routing among the Internet Protocol (IP) backbones of a plurality of carriers, comprising the steps of:

(1) receiving at a first CX proxy server a VoIP call from the IP backbone of one of the plurality of carriers;

(2) determining a destination IP backbone from among the plurality of carriers according to a pre-determined quality-based scheme;

(3) routing said VoIP call to a second CX proxy server connected to said destination IP backbone; and

(4) sending, by said second CX proxy server, said VoIP call to said destination IP backbone.

2. The method of claim 1, further comprising the step of routing said VoIP call to a gateway connected to a Public Service Telephone Network when said pre-determined quality-based scheme determines that none of the plurality of carriers is a suitable destination.

3. The method of claim 1, wherein said pre-determined quality-based scheme comprises the step of setting rules regarding calls willing to be authorized by each one of the plurality of carriers.

4. The method of claim 1, wherein said pre-determined quality-based scheme comprises the step of utilizing a five-point system to determine a Quality of Service (QoS) indicator.

5. The method of claim 4, further comprising the step of setting rules regarding calls willing to be authorized by each one of the plurality of carriers.

6. The method of claim 5, wherein the step of setting rules specifies cost requirements for calls to be terminated via a CX network.

7. The method of claim 6, wherein the step of setting rules further includes the step of specifying quality requirements for calls to be terminated via said CX network.

8. The method of claim 7, further including the step of specifying at least one call that a carrier is willing to terminate.

9. The method of claim 8, further including the step of specifying a cost for terminating said at least one call.

10. The method of claim 9 further comprising the step of determining whether a call requested by one carrier can be terminated using another carrier'"'"'s network.

11. The method of claim 10, wherein said determining step occurs by combining said rules regarding said calls willing to be authorized by a carrier with quality information about said carrier'"'"'s network.

12. A carrier exchange (CX) network for providing quality-based voice over Internet Protocol (VoIP) routing among a plurality of carriers, comprising:

a plurality of CX proxy servers, wherein each of said CX proxy servers is connected to the Internet Protocol (IP) backbone of one of the plurality of carriers;

a CX IP backbone connected to said plurality of CX proxy servers, wherein said CX IP backbone receives VoIP traffic from said plurality of CX proxy servers; and

a CX management system, connected to said CX IP backbone that routes VoIP traffic from the IP backbone of one of the plurality of carriers to the IP backbone of another of the plurality of carriers according to a pre-determined quality-based scheme.

13. The CX network of claim 12, wherein said pre-determined quality-based scheme comprises rules regarding calls willing to be authorized by each one of the plurality of carriers.

14. The CX network of claim 12, wherein said pre-determined quality-based scheme comprises a five-point system to determine a Quality of Service (QoS) indicator.

15. The CX network of claim 14, wherein said pre-determined quality-based scheme further comprises rules regarding calls willing to be authorized by each one of the plurality of carriers.

16. The CX network of claim 15, wherein said rules include cost requirements for calls to be terminated via the CX network.

17. The CX network of claim 16, wherein said rules further include quality requirements for calls to be terminated via the CX network.

18. The CX network of claim 17, wherein said quality requirements include identification of at least one call that a carrier is willing to terminate.

19. The CX network of claim 18, wherein said quality requirements include cost for terminating said at least one call.

20. The CX network of claim 12, further comprising a gateway, connected to a Public Service Telephone Network, for receiving said VoIP traffic when said pre-determined quality-based scheme determines that none of the plurality of carriers is a suitable destination.

21. A computer program product comprising a computer usable medium having control logic stored therein for causing a computer to provide quality-based voice over Internet Protocol (VoIP) routing among the Internet Protocol (IP) backbones of a plurality of carriers, said control logic comprising:

a first computer readable program code means for causing the computer to receive a VoIP call from a first CX proxy server connected to a source IP backbone;

a second computer readable program code means for causing the computer to determine a destination IP backbone from among the plurality of carriers according to a pre-determined quality-based scheme; and

a third computer readable program code means for causing the computer to route said VoIP call to a second CX proxy server connected to said destination IP backbone;

whereby said second CX proxy server sends said VoIP call to said destination IP backbone.

22. The computer program product of claim 21, further comprising a fifth computer readable program code means for causing the computer to route said VoIP call to a gateway connected to a Public Service Telephone Network when said pre-determined quality-based scheme determines that none of the plurality of carriers is a suitable destination.

23. The computer program product of claim 21, wherein said pre-determined quality-based scheme comprises rules regarding calls willing to be authorized by each one of the plurality of carriers.

24. The computer program product of claim 21, wherein said pre-determined quality-based scheme comprises a five-point system to determine a Quality of Service (QoS) indicator.

25. The computer program product of claim 24, wherein said pre-determined quality-based scheme further comprises rules regarding calls willing to be authorized by each one of the plurality of carriers.

26. The computer program product of claim 25, wherein said rules include cost requirements for calls to be terminated via the CX network.

27. The computer program product of claim 26, wherein said rules further include quality requirements for calls to be terminated via the CX network.

28. The computer program product of claim 27, wherein said quality requirements include identification of at least one call that a carrier is willing to terminate.

29. The computer program product of claim 28, wherein said quality requirements include cost for terminating said at least one call.