Method and apparatus for messaging between disparate networks

• US 6,735,621 B1
• Filed: 08/15/2000
• Issued: 05/11/2004
• Est. Priority Date: 02/18/2000
• Status: Expired due to Fees

• Current Assignee: RPX Clearinghouse LLC (RPX Corporation)
• Original Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Inventors: Alluisi, Paul D., Reaves, James E., Yoakum, John H.
• Primary Examiner(s): Jean, Frantz B.
• Application Number:
  US09/638,580
• Time in Patent Office: 1,365 Days
• Field of Search: 709/218, 709/206, 709/232, 709/238, 709/249, 370/353, 370/401, 370/352, 370/354, 379/93.07, 379/220.01, 379/219
• US Class Current: 709/218
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04M 7/127 where the session control protocols comprise SIP and SS7
• CPC Class Codes: H04Q 3/0025 Provisions for signalling

Abstract

Method and apparatus for messaging between disparate networks. A service control gateway (SCG) provides the capability to extend advanced intelligent network (AIN) services transparently between circuit switched and packet networks. In one embodiment, the invention works by translating signaling system 7 (SS7) transaction capabilities application part (TCAP) messages into session initiation protocol (SIP) INVITE messages. SIP messages, which may be responses to the translated messages referred to above, are translated back into TCAP messages. Data from messages is stored in an interaction database, a data structure maintained at the SCG. The SCG uses the interaction database to properly format translated messages for each network.

Claims

1. A method of messaging between disparate networks comprising:

receiving a signaling information message from a first network;

storing first network specific information from the signaling information message in an interaction database;

determining second network specific information corresponding to the first network specific information and storing the second network specific information in the interaction database;

sending the signaling information message to a second network using the second network specific information;

receiving a response from the second network;

associating the response with the signaling information message by referencing the interaction database; and

sending the response to the first network using the first network specific information.

2. The method of claim 1 wherein the first network is a circuit-switched network and the second network is a packet-switched network.

3. The method of claim 2 wherein the signaling information message is received formatted according to a signaling system 7 (SS7) protocol and the response is received formatted according to a session initiation protocol (SIP).

4. A computer program product for messaging between disparate networks, the computer program product including a media with a computer program embodied thereon, the computer program comprising:

computer program code for receiving a signaling information message from a first network;

computer program code for storing first network specific information from the signaling information message in an interaction database;

computer program code for determining second network specific information corresponding to the first network specific information and storing the second network specific information in the interaction database;

computer program code for sending the signaling information message to a second network using the second network specific information;

computer program code for receiving a response from the second network;

computer program code for associating the response with the signaling information message by referencing the interaction database; and

computer program code for sending the response to the first network using the first network specific information.

5. The computer program product of claim 4 wherein the first network is a circuit-switched network and the second network is a packet-switched network.

6. The computer program product of claim 5 wherein the signaling information message is received formatted according to a signaling system 7 (SS7) protocol and the response is received formatted according to a session initiation protocol (SIP).

7. Apparatus for messaging between disparate networks comprising:

means for receiving a signaling information message from a first network;

means for storing first network specific information from the signaling information message in an interaction database;

means for determining second network specific information corresponding to the first network specific information and storing the second network specific information in the interaction database;

means for sending the signaling information message to a second network using the second network specific information;

means for receiving a response from the second network;

means for associating the response with the signaling information message by referencing the interaction database; and

means for sending the response to the first network using the first network specific information.

8. A computer readable memory system encoded with an interaction database, the interaction database containing:

first network specific information derived from a signaling information message sent by a first network; and

second network specific information corresponding to the signaling information message, wherein the first network specific information and the second network specific information are accessible by a computer program that enables a service control gateway to pass signaling information messages and responses between the first network and a second network.

9. The computer readable memory system of claim 8 wherein the first network specific information and the second network specific information are stored in one or more interaction data units.

10. A service control gateway that enables messages related to telecommunication services to be processed across disparate networks by performing the steps of:

receiving a signaling information message from a first network;

storing first network specific information from the signaling information message in an interaction database;

determining second network specific information corresponding to the first network specific information and storing the second network specific information in the interaction database;

sending the signaling information message to a second network using the second network specific information;

receiving a response from the second network;

associating the response with the signaling information message by referencing the interaction database; and

sending the response to the first network using the first network specific information.

11. The service control gateway of claim 10 wherein the first network is a circuit-switched network and the second network is a packet-switched network.

12. The service control gateway of claim 11 wherein the signaling information message is received formatted according to a signaling system 7 (SS7) protocol and the response is received formatted according to a session initiation protocol (SIP).

13. The service control gateway of claim 12 wherein the first network specific information includes information selected from the group consisting of:

a transaction identifier, session parameters, and routing data, and the second network specific information includes information selected from the group consisting of;

a call identifier and a sequence number.

14. A service control gateway that enables telecommunication services to be provided across disparate networks, the service control gateway comprising:

connections for a first network and a second network;

one or more processors for controlling the operation of the service access gateway; and

a computer readable memory system connected to the one or more processors, the computer readable memory system operable to maintain an interaction database for storing first network specific information derived form a signaling information message sent by the first network, and second network specific information corresponding to the signaling information message, wherein the first network specific information and the second network specific information are accessible by the one or more processors under the control of a computer program so that the signaling information message can be transferred between the first network and the second network.

15. The service control gateway of claim 14 wherein the first network is a circuit-switched network and the second network is a packet-switched network.

16. The service control gateway of claim 15 wherein the signaling information message is received formatted according to a signaling system 7 (SS7) protocol and the response is received formatted according to a session initiation protocol (SIP).

17. The service control gateway of claim 16 wherein the first network specific information includes information selected from the group consisting of:

a transaction identifier, session parameters, and routing data, and the second network specific information includes information selected from the group consisting of;

a call identifier and a sequence number.

18. A system for interconnecting two or more disparate constituent networks, the system comprising:

packet-based constituent network apparatus including a number server that is operable as a proxy for packet-based network servers; and

a service control gateway having connections for a circuit-switched constituent network, and being connected to the packet-based constituent network apparatus, the service control gateway including a computer readable memory system operable for storing an interaction database including circuit-switched and packet-based network specific information corresponding to a signaling information message, wherein the circuit-switched and packet-based network specific information is accessible by one or more processors under the control of a computer program so that the signaling information message can be transferred amongst the two or more disparate constituent networks.

19. The system of claim 18 wherein the service control gateway is further operable to return a default response to the message from a database.

20. The system of claim 19 wherein the database is stored in the service control gateway.

21. The system of claim 19 wherein the database is stored in the packet-based constituent network apparatus.