Session initiation protocol based advanced intelligent network/intelligent network messaging

• US 20020141381A1
• Filed: 11/30/2000
• Published: 10/03/2002
• Est. Priority Date: 11/30/2000
• Status: Active Grant

• Current Assignee: Genband US LLC (Ribbon Communications, Inc.)
• Original Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Inventors: Nicoletta, Johanna Pearl Ruth, Gawargy, Michael M.
• Granted Patent: US 7,058,068 B2
• Time in Patent Office: Days
• US Class Current: 370/352
• CPC Class Codes: H04L 65/1096 Supplementary features, e.g. call forwarding or call holding systems providing special services or facilities to telephony subscribers H04M3/42
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 65/401 wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04Q 3/0029 Provisions for intelligent networking

Abstract

A method and system enables distributed transaction oriented telephony functionality for telephony services in a broadband packet network. Exemplary distributed transaction oriented telephony functionality includes Intelligent Network (IN) and Advanced Intelligent Network (AIN) functionality accessed through the legacy Common Channel Signaling (CCS) network using transaction-based messaging protocols, such as Intelligent Network Application Part (INAP) and/or Transaction Capability Application Part (TCAP) protocols. A functional content of a transaction message, such as a TCAP message, is encapsulated in a Protocol Data Unit (PDU) of the broadband packet network. The PDU is forwarded through the broadband packet network to a second network element. The functionality is then invoked using the encapsulated transaction message functional content. In preferred embodiments the PDU is a Session Initiation Protocol (SIP) envelope, into which TCAP message functional content can be mapped.

Claims

1. A method of enabling distributed transaction oriented telephony functionality for telephony services deployed in a broadband packet network, the method comprising steps of:

a) at a first network element, encapsulating a functional content of a transaction message in a Protocol Data Unit (PDU) of the broadband packet network;

b) forwarding the PDU through the broadband packet network to a second network element; and

c) invoking the functionality using the encapsulated transaction message functional content.

2. A method as claimed in claim 1, wherein the distributed transaction oriented telephony functionality comprises intelligent network/advanced intelligent network (IN/AIN) functionality.

3. A method as claimed in claim 1, wherein the broadband packet network comprises any one or more of:

an Asynchronous Transfer Mode (ATM) network;

an internet Protocol (IP) network;

a Frame Relay (FR) network; and

an Integrated Services Digital Network (ISDN).

4. A method as claimed in claim 3, wherein the broadband packet network comprises an IP Network, and the PDU comprises a Session Initiation Protocol (SIP) message envelope.

5. A method as claimed in claim 1, wherein the first network element comprises a media gateway controller adapted to enable telephony signal traffic through the broadband packet network.

6. A method as claimed in claim 1, wherein the second network element comprises an application server adapted to invoke the functionality using transaction message functional content.

7. A method as claimed in claim 6, wherein the application server comprises either one of:

a) a CCS network element adapted to send and receive PDU'"'"'s of the broadband packet network; and

b) a network element of the broadband packet network.

8. A method as claimed in claim 1, wherein the step of encapsulating the functional content of the transaction message comprises the steps of:

a) formulating a transaction message; and

b) inserting the formulated transaction message into a payload portion of the PDU.

9. A method as claimed in claim 8, wherein the transaction message comprises either one of a Transaction Capabilities Application Part (TCAP) message and an Intelligent Network Application Part (INAP) message.

10. A method as claimed in claim 1, wherein the step of encapsulating the functional content of the transaction message comprises a step of mapping the transaction message onto the PDU.

11. A method as claimed in claim 10, wherein the transaction message comprises a Transaction Capabilities Application Part (TCAP) message.

12. A method as claimed in claim 11, wherein the step of mapping comprises a step of mapping a TCAP message type onto a respective message type of the PDU.

13. A method as claimed in claim 12, wherein the TCAP message type comprises any one or more of:

query;

response;

conversation;

unidirectional; and

abort.

14. A method as claimed in claim 10, wherein the transaction message comprises an Intelligent Network-Application Part (INAP) message.

15. A method as claimed in claim 14, wherein the step of mapping comprises a step of mapping an INAP message type onto a respective message type of the PDU.

16. A method as claimed in claim 15, wherein the INAP message type comprises any one or more of:

begin;

end;

continue;

unidirectional; and

abort.

17. A method as claimed in claim 10, wherein the step of mapping comprises a step of mapping a transaction message parameter onto a respective PDU message parameter.

18. A method as claimed in claim 17, wherein the transaction message parameter comprises any one or more of:

an origination address and a destination address.

19. A method as claimed in claim 17, wherein the transaction message parameter is mapped to a respective overhead field of the PDU.

20. A method as claimed in claim 10, wherein the step of mapping comprises a step of mapping an encoded message payload into a payload of the PDU.

21. A method as claimed in claim 20, wherein the encoded message payload is mapped into a payload portion of a MIME part of the PDU.

22. A method as claimed in claim 21, wherein the transaction message comprises two or more encoded payload portions.

23. A method as claimed in claim 22, wherein each encoded payload portion is mapped to a respective individual MIME payload.

24. A method as claimed in claim 22, wherein the encoded payload portions are mapped to a common MIME payload.

26. A system as claimed in claim 25, wherein the distributed transaction oriented telephony functionality comprises intelligent network/advanced intelligent network (IN/AIN) functionality.

27. A system as claimed in claim 25, wherein the broadband packet network comprises any one or more of:

an Asynchronous Transfer Mode (ATM) network;

an internet Protocol (IP) network;

a Frame Relay (FR) network; and

an Integrated Services Digital Network (ISDN).

28. A system as claimed in claim 25, wherein the broadband packet network comprises an IP Network, and the PDU comprises a Session Initiation Protocol (SIP) message envelope.

29. A system as claimed in claim 25, wherein the first network element comprises a media gateway controller adapted to enable telephony signal traffic through the broadband packet network.

30. A system as claimed in claim 25, wherein the second network element comprises an application server adapted to invoke the functionality using transaction message functional content.

31. A system as claimed in claim 30, wherein the application server comprises either one of:

a) a CCS network element adapted to send and receive PDU'"'"'s of the broadband packet network; and

b) a network element of the broadband packet network.

32. A system as claimed in claim 25, wherein the first network element comprises:

a) means for formulating a transaction message; and

b) means for inserting the formulated transaction message into a payload portion of the PDU.

33. A method as claimed in claim 32, wherein the transaction message comprises either one of a Transaction Capabilities Application Part (TCAP) message and an Intelligent Network Application Part (INAP) message.

34. A system as claimed in claim 25, wherein the first network element comprises means for mapping the transaction message onto the PDU.

35. A system as claimed in claim 34, wherein the transaction message comprises a Transaction Capabilities Application Part (TCAP) message.

36. A system as claimed in claim 35, wherein the means for mapping comprises means for mapping the TCAP message type onto a respective message type of the PDU.

37. A system as claimed in claim 36, wherein the TCAP message type comprises any one or more of:

query;

response;

conversation;

unidirectional and abort.

38. A system as claimed in claim 34, wherein the transaction message comprises an Intelligent Network-Application Part (INAP) message.

39. A system as claimed in claim 38, wherein the means for mapping comprises means for mapping an INAP message type onto a respective message type of the PDU.

40. A system as claimed in claim 39, wherein the INAP message type comprises any one or more of:

begin;

end;

continue;

unidirectional and abort.

41. A system as claimed in claim 34, wherein the means for mapping comprises means for mapping a transaction message parameter onto a respective PDU message parameter.

42. A system as claimed in claim 41, wherein the transaction message parameter comprises any one or more of:

an origination address and a destination address.

43. A system as claimed in claim 42, wherein the transaction message parameter is mapped to a respective overhead field of the PDU.

44. A system as claimed in claim 34, wherein the means for mapping comprises means for mapping an encoded message payload into a payload of the PDU.

45. A system as claimed in claim 44, wherein the encoded message payload is mapped into a payload portion of a MIME part of the PDU.

46. A system as claimed in claim 45, wherein the transaction message comprises two or more encoded payload portions.

47. A system as claimed in claim 46, wherein each encoded payload portion is mapped to a respective individual MIME payload.

48. A system as claimed in claim 46, wherein the encoded payload portions are mapped to a common MIME payload.

50. A node as claimed in claim 49, wherein the distributed transaction oriented telephony functionality comprises intelligent network/advanced intelligent network (IN/AIN) functionality.

51. A node as claimed in claim 49, wherein the broadband packet network comprises any one or more of:

an Asynchronous Transfer Mode (ATM) network;

an internet Protocol (IP) network;

a Frame Relay (FR) network; and

an Integrated Services Digital Network (ISDN).

52. A node as claimed in claim 51, wherein the broadband packet network comprises an IP Network, and the PDU comprises a Session Initiation Protocol (SIP) message envelope.

53. A node as claimed in claim 49, wherein the node comprises either one of:

a) a media gateway controller adapted to enable telephony signal traffic through the broadband packet network; and

b) an application server adapted to invoke IN/AIN functionality using TCAP functional content.

54. A node as claimed in claim 53, wherein the application server comprises either one of:

a) a CCS network element adapted to send and receive PDU'"'"'s of the broadband packet network; and

b) a network element of the broadband packet network.

55. A node as claimed in claim 49, further comprising:

a) means for formulating a transaction message; and

b) means for inserting the formulated transaction message into a payload portion of the PDU.

56. A node as claimed in claim 55, wherein the transaction message comprises either one of a Transaction Capabilities Application Part (TCAP) message and an Intelligent Network Application Part (INAP) message.

57. A node as claimed in claim 49, further comprising means for mapping the transaction message onto the PDU.

58. A node as claimed in claim 57, wherein the transaction message comprises a Transaction Capability Application Part (TCAP) message.

59. A node as claimed in claim 58, wherein the means for mapping comprises means for mapping a TCAP message type onto a respective message type of the PDU.

60. A node as claimed in claim 59, wherein the TCAP message type comprises any one or more of:

query;

response;

conversation;

unidirectional; and

abort.

61. A node as claimed in claim 57, wherein the transaction message is an Intelligent Network Application Part (INAP) message.

62. A node as claimed in claim 61, wherein the means for mapping comprises means for mapping the INAP message type onto a respective message type of the PDU.

63. A node as claimed in claim 62, wherein the INAP message type comprises any one or more of:

begin;

end;

continue;

unidirectional; and

abort.

64. A node as claimed in claim 57, wherein the means for mapping comprises means for mapping a transaction message parameter onto a respective PDU message parameter.

65. A node as claimed in claim 64, wherein the transaction message parameter comprises any one or more of:

an origination address and a destination address.

66. A node as claimed in claim 64, wherein the transaction message parameter is mapped to a respective overhead field of the PDU.

67. A node as claimed in claim 57, wherein the means for mapping comprises means for mapping an encoded message payload into a payload of the PDU.

68. A node as claimed in claim 67, wherein the encoded message payload is mapped into a payload portion of a MIME part of the PDU.

69. A node as claimed in claim 68, wherein the transaction message comprises two or more encoded payload portions.

70. A node as claimed in claim 69, wherein each encoded payload portion is mapped to a respective individual MIME payload.

71. A node as claimed in claim 69, wherein the encoded payload portions are mapped to a common MIME payload.

25. A system adapted for enabling distributed transaction oriented telephony functionality for telephony services in a broadband packet network, the system comprising:

a) a first network element adapted to encapsulate a functional content of a transaction message in a Protocol Data Unit (PDU) of the broadband packet network; and

b) a second network element adapted to invoke the functionality using the encapsulated transaction message functional content.

49. A network node adapted to enable distributed transaction oriented telephony functionality for telephony services in a broadband packet network, the node comprising means for encapsulating at least a functional content of a transaction message in a Protocol Data Unit (PDU) of the broadband packet network.