Port policy management for calls in a centralized call control packet network

• US 7,372,849 B2
• Filed: 10/15/2002
• Issued: 05/13/2008
• Est. Priority Date: 10/15/2002
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Harikrishnan, Sahadevan P., Iyer, Ashok V., Synnestvedt, Robert Glenn
• Primary Examiner(s): Kizou; Hassan
• Assistant Examiner(s): O CONNOR, BRIAN T
• Application Number:
  US10/272,320
• Publication Number:
  US 20040071131A1
• Time in Patent Office: 2,037 Days
• Field of Search: 370/401, 370/410, 370/467, 370/353, 370/356
• US Class Current: 370/353
• CPC Class Codes: H04Q 3/0025 Provisions for signalling
• CPC Class Codes: H04Q 3/0045 involving hybrid, i.e. a mixture of public and private, or multi-vendor systems

Abstract

A network device is disclosed. The network device comprises a port to allow reception of a TCAP query. A processor translates the TCAP query into a dial access request and a port allows transmission of the dial access request and to receive a call disposition message.

Claims

1. A network device, comprising:

a first port to allow reception of a TCAP query from a point-of-presence (POP) and to allow transmission of a TCAP query response to the POP;

a processor to translate the TCAP query into an access request, the access request comprising an identification of a service provider; and

a second port to allow transmission of the access request to a policy management system and to receive a call disposition message from the policy management system, wherein the call disposition message is based on network conditions, the identification of the service provider, and a service level agreement associated with the service provider.

2. The network device of claim 1 wherein the TCAP query response comprises an error message.

3. The network device of claim 1 wherein the network device further comprises a memory.

4. The network device of claim 3, wherein the memory includes a lookup table that provides a translation between TCAP messages and access request messages.

5. The network device of claim 1, wherein the network device is a media gateway controller.

6. The network device of claim 1, wherein the network device is a policy processor.

7. A method of enforcing policy management on a Softswitch based network, the method comprising:

receiving a transaction capability application part (TCAP) query from a point-of-presence (POP);

translating the TCAP query to an access request, the access request comprising an identification of a service provider;

transmitting the access request to a policy management system;

receiving a call disposition message from the policy management system, the call disposition message based on network conditions, the identification of the service provider, and a service level agreement associated with the service provider;

translating the call disposition message to a TCAP query response; and

transmitting the TCAP query response to the POP.

8. The method of claim 7, wherein receiving the TCAP query further comprises:

deconstructing the query;

locating originator information; and

determining an originator'"'"'s service provider and the point-of-presence (POP) from which the originator is accessing the network from the originator information.

9. The method of claim 7, wherein translating the TCAP query to an access request further comprises:

constructing the access request using originator information located inside the TCAP query; and

transmitting the access request to a policy system.

10. The method of claim 7, wherein the TCAP response further comprises a TCAP error code.

11. A network device, comprising:

a means for allowing reception of a TCAP query from a point-of-presence (POP);

a means for translating the TCAP query into an access request, the access request comprising an identification of a service provider; and

a means for allowing transmission of the access request to a policy management system and to receive a call disposition message from the policy management system, wherein the call disposition message is based on network conditions, the identification of the service provider, and a service level agreement associated with the service provider.

12. The network device of claim 11 wherein the means for allowing reception of a TCAP query further allows transmission of a TCAP query response and the TCAP query response comprises an error message.

13. The network device of claim 11 wherein the network device further comprises a means for storing data.

14. The network device of claim 13, wherein the means for storing data further comprises a lookup table that provides a translation between TCAP messages and access request messages.

15. The network device of claim 11, wherein the network device is a media gateway controller.

16. The network device of claim 11, wherein the network device is a policy processor.

17. A computer readable medium containing machine-executable code that, when executed, causes the machine to:

receive a translation capability application part (TCAP) query from a point-of-presence (POP);

translate the TCAP query to an access request, the access request comprising an identification of a service provider;

transmit the access request to a policy management system;

receive a call disposition message from the policy management system, the call disposition message based on network conditions, the identification of the service provider, and a service level agreement associated with the service provider; and

translate the call disposition message to a TCAP query response; and

transmit the TCAP query response to the POP.

18. The computer readable medium of claim 17 wherein the code causing the machine to receive the TCAP query further causes the machine to:

deconstruct the query; and

locate originator information.

19. The computer readable medium of claim 17 wherein the code causing the machine to translate the TCAP query further causes the machine to:

construct an access request using originator information located inside the TCAP query; and

transmit the access request to a policy system.

20. The computer readable medium of claim 17, wherein the machine is a protocol converter.

21. The computer readable medium of claim 17, wherein the machine is a media gateway controller.

22. The computer readable medium of claim 17, wherein the machine is a policy processor.