Methods, systems, and computer readable media for providing foreign routing address information to a telecommunications network gateway

• US 8,224,337 B2
• Filed: 09/16/2010
• Issued: 07/17/2012
• Est. Priority Date: 09/16/2009
• Status: Active Grant

• Current Assignee: Tekelec
• Original Assignee: Tekelec
• Inventors: Coupland, Michael, Wadhwa, Amrit Pal Singh, Marsico, Peter Joseph, Gosnell, Bradley W
• Primary Examiner(s): Rampuria, Sharad
• Application Number:
  US12/883,886
• Publication Number:
  US 20110098049A1
• Time in Patent Office: 670 Days
• Field of Search: 455/445, 4554321-4351, 455/552.1, 379/221.13, 379/221.14, 370352-356, 370/401
• US Class Current: 455/445
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 61/4557 Directories for hybrid networks, e.g. including telephone numbers
• CPC Class Codes: H04L 65/104 in the network

Abstract

The subject matter described herein includes methods, systems, and computer readable media for providing foreign routing address information to a telecommunications network gateway. According to one aspect, the method includes, at a call signaling message routing node in a first telecommunications network, intercepting a call setup message that includes a called party number identifier and is directed towards a network gateway connected to at least one foreign telecommunications network. The method also includes accessing a foreign routing information database using an ENUM formatted query message to obtain foreign routing address information associated with the at least one foreign telecommunications network, modifying the call setup message to include the address information, and routing the modified call setup message towards the network gateway.

Claims

1. A method for providing switch address information to a foreign telecommunications network, the method comprising:

at a call signaling message routing node in a first telecommunications network, wherein the call signaling message routing node includes a DIAMETER signaling router (DSR);

intercepting a call setup message that includes a called party number identifier and is directed towards a first foreign telecommunications network via a network gateway connected to the first foreign telecommunications network and a second foreign telecommunications network;

accessing a foreign routing information database using an ENUM formatted query message to obtain foreign routing address information associated with the second foreign telecommunications network;

modifying the call setup message to include the address information associated with the second foreign telecommunications network; and

routing the modified call setup message towards the network gateway.

2. The method of claim 1 wherein the foreign routing address information is associated with the called party number and a switch device in the second foreign telecommunications network.

3. The method of claim 2 wherein accessing the foreign routing information database includes generating the ENUM formatted query message to request address information associated with the called party number and a switch device in the second foreign telecommunications network, transmitting the ENUM formatted query message to a server in the first telecommunications network that contains the address information and receiving, from the server, an ENUM formatted response message that includes the address information.

4. The method of claim 1 wherein the foreign routing information database is located within the call signaling message routing node.

5. The method of claim 1 wherein the foreign routing address information includes at least one of number portability information and least cost routing information.

6. The method of claim 1 wherein the gateway includes an international gateway providing a connection to the first foreign telecommunications network and the second foreign telecommunications network.

7. The method of claim 2 wherein the foreign routing address information includes at least one of a routing number and a local routing number (LRN) associated with a switch device in the second foreign telecommunications network.

8. The method of claim 1 wherein the foreign routing address information includes a uniform resource identifier (URI) that is translated to generate at least one of a routing number and a local routing number.

9. The method of claim 1 wherein the call setup message includes an ISDN user part (ISUP) initial address message (IAM).

10. The method of claim 1 wherein the foreign routing address information includes at least one of switch identifier information, switch address information, carrier identification information, service profile identifier (SPID) information associated with the second foreign telecommunications network.

11. A method for providing switch address information to a foreign telecommunications network, the method comprising:

at a call signaling message routing node in a first telecommunications network;

intercepting a call setup message that includes a called party number identifier and is directed towards a first foreign telecommunications network via a network gateway connected to the first foreign telecommunications network and a second foreign telecommunications network;

accessing a foreign routing information database using a DIAMETER formatted query message to obtain foreign routing address information associated with the second foreign telecommunications network;

modifying the call setup message to include the address information associated with the second foreign telecommunications network; and

routing the modified call setup message towards the network gateway.

12. The method of claim 11 wherein the foreign routing address information is associated with the called party number and a switch device in the second foreign telecommunications network.

13. The method of claim 12 wherein accessing the foreign routing information database includes generating the DIAMETER formatted query message to request address information associated with the called party number and a switch device in the second foreign telecommunications network, transmitting the DIAMETER formatted query message to a server in the first telecommunications network that contains the address information, and receiving, from the server, a DIAMETER formatted response message that includes the address information.

14. The method of claim 11 wherein the foreign routing information database is located within the call signaling message routing node.

15. The method of claim 11 wherein the foreign routing address information includes at least one of number portability information and least cost routing information.

16. The method of claim 11 wherein the DIAMETER formatted query message includes a DIAMETER location information request (LIR) query message.

17. The method of claim 13 wherein the DIAMETER response message includes a DIAMETER location information answer (LIA) response message.

18. The method of claim 11 wherein the gateway includes an international gateway providing a connection to the first foreign telecommunications network and the second foreign telecommunications network.

19. The method of claim 12 wherein the foreign routing address information includes at least one of a routing number and a local routing number (LRN) associated with a switch device in the second foreign telecommunications network.

20. The method of claim 11 wherein the foreign routing address information includes a uniform resource identifier (URI) that is translated to generate at least one of a routing number and a local routing number.

21. The method of claim 11 wherein the call setup message includes an ISDN user part (ISUP) initial address message (IAM).

22. The method of claim 11 wherein the call signaling message routing node includes a signal transfer point (STP) or a DIAMETER signaling router (DSR).

23. The method of claim 11 wherein the foreign routing address information includes at least one of switch identifier information, switch address information, carrier identification information, service profile identifier (SPID) information associated with the second foreign telecommunications network.

24. A system for providing switch address information to a foreign telecommunications network, the system comprising:

in a first telecommunications network;

a network gateway that is connected to a first foreign telecommunications network and a second telecommunications network and configured for receiving a modified call signaling message and routing the modified call signaling message; and

a call signaling message routing node configured for intercepting a call setup message that includes a called party number identifier and is directed towards the first foreign telecommunications network via the network gateway, for accessing a foreign routing information database using a DIAMETER formatted query message to obtain foreign routing address information associated with the second foreign telecommunications network, and for modifying the call setup message to include the address information associated with the second foreign telecommunications network.

25. The system of claim 24 wherein the foreign routing address information is associated with the called party number and a switch device in the second foreign telecommunications network.

26. The system of claim 25 wherein the call signaling message routing node is configured for generating a DIAMETER formatted query message to request address information associated with the called party number and a switch device in the second foreign telecommunications network, transmitting the DIAMETER formatted query message to a server in the first telecommunications network that contains the address information, and receiving, from the server, a DIAMETER formatted response message that includes the address information.

27. The system of claim 24 wherein the foreign routing information database is located within the call signaling message routing node.

28. The system of claim 24 wherein the foreign routing address information includes at least one of number portability information and least cost routing information.

29. The system of claim 24 wherein the gateway includes an international gateway providing a connection to the first foreign telecommunications network and the second foreign telecommunications network.

30. The system of claim 25 wherein the foreign routing address information includes at least one of a routing number and a local routing number (LRN) associated with a switch device in the second foreign telecommunications network.

31. The system of claim 24 wherein the foreign routing address information includes a uniform resource identifier (URI) that is translated to generate at least one of a routing number and a local routing number.

32. The system of claim 24 wherein the call setup message includes an ISDN user part (ISUP) initial address message (IAM).

33. The system of claim 24 wherein the call signaling message routing node includes a signal transfer point (STP) or a DIAMETER signaling router (DSR).

34. The system of claim 24 wherein the foreign routing address information includes at least one of switch identifier information, switch address information, carrier identification information, service profile identifier (SPID) information associated with the second foreign telecommunications network.

35. A non-transitory computer readable medium having stored thereon executable instructions that when executed by the processor of a computer control the computer to perform steps comprising:

at a call signaling message routing node in a first telecommunications network;

intercepting a call setup message that includes a called party number identifier and is directed towards a first foreign telecommunications network via a network gateway connected to the first foreign telecommunications network and a second foreign telecommunications network;

accessing a foreign routing information database using a DIAMETER formatted query message to obtain foreign routing address information associated with the second foreign telecommunications network;

modifying the call setup message to include the address information associated with the second foreign telecommunications network; and

routing the modified call setup message towards the network gateway.