Method for establishing virtual private line for long distance carrier

• US 5,995,613 A
• Filed: 10/02/1997
• Issued: 11/30/1999
• Est. Priority Date: 10/02/1997
• Status: Expired due to Term

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Parekh, Ami, Walden, Gary D., Goel, Anurag
• Primary Examiner(s): SMITH, CREIGHTON H
• Application Number:
  US08/942,677
• Time in Patent Office: 789 Days
• Field of Search: 379/219, 379/220, 379/221, 379/229, 379/230, 379/207
• US Class Current: 379/221.15
• CPC Class Codes: H04Q 3/0025 Provisions for signalling

Abstract

A service that provides a virtual private line between a local exchange and another interexchange carrier. To provide the virtual private line, a switch in a first interexchange carrier receives a code representative of the carrier of choice. The switch identifies the second interexchange carrier from the code, and identifies a location of a point of interface between the first and second interexchange carriers. The switch establishes a call path from itself to the second interexchange carrier through the point of interface.

Claims

1. A method of routing a call received by a first interexchange communication network to a second interexchange communication network, comprising the steps of:

receiving a code associated with the call,

determining whether the code identifies the second network, and

when the code identifies the second network,

identifying a point of interface between the first and second networks, and

routing the call to second network through the point of interface.

2. The method of claim 1, wherein the receiving step includes a step of deriving the code from a path in which the call is received.

3. The method of claim 1, wherein the receiving step includes a step of receiving a signal representing the code.

4. The method of claim 1, wherein the call is received by the first network from a local exchange carrier.

5. The method of claim 1, wherein the call is received by the first network from a third interexchange carrier.

6. The method of claim 1, wherein the call is received by the first network from a private branch exchange.

7. The method of claim 1, further comprising steps of:

generating a billing record relating to a call path established by the routing step, and

billing the second network for the call path.

8. The method of claim 1 wherein the code is a CIC code.

9. The method of claim 1, wherein the identifying step includes steps of:

referring the code to a memory table, and

retrieving from the table data associated with the code, the data identifying a terminating switch in the first network associated with the point of interface.

10. The method of claim 1, further comprising, when the code does not identify the second network, steps of:

determining whether the code designates the first network itself, and

when the code designates the first network, establishing a call path from the third network to a network address identified by the telephone number.

11. In a first interexchange communication network, a method of processing a call associated with a second interexchange communication network, comprising the steps of:

receiving a code associated with the call,

determining whether the code identifies the second network,

when the code identifies the second network, identifying a preferred mode of service of the second network, and

when the preferred mode of service is a virtual private line service,

identifying a point of interface between the first and second networks, and

routing the call to the second network through the point of interface.

12. The method of claim 11, wherein the receiving step includes a step of deriving the code from a path in which the telephone number is received.

13. The method of claim 11, wherein the receiving step includes a step of receiving a signal representing the code.

14. The method of claim 11, wherein the call is received by the first network from a local exchange carrier.

15. The method of claim 11, wherein the call is received by the first network from an interexchange carrier.

16. The method of claim 11, wherein the call is received by the first network from a private branch exchange.

17. The method of claim 11,

wherein the receiving step includes a step of receiving a telephone number identifying a party to be called,

the method further comprising a step of, when the preferred mode of service is an end to end service, routing the call based on the telephone number.

18. The method of claim 11, further comprising steps of:

generating a billing record relating to a call path established by the routing step, and

billing the second network for the call path.

19. The method of claim 11, wherein the code is a CIC code.

20. The method of claim 11, wherein the identifying step includes steps of:

referring the code to a memory table, and

retrieving from the memory table data associated with the code, the data identifying a terminating switch in the first network associated with the point of interface.

21. The method of claim 11, further comprising steps of:

receiving with the code a telephone number of a party to be called, and

when the code does not identify the second network;

determining whether the code designates the first communication network, and

when the code designates the first communication network, routing the call based upon a network address identified by the telephone number.

22. A method of routing a call received by a first interexchange communication network to a second interexchange communication network, comprising the steps of:

receiving a code associated with the call, the code identifying a carrier of choice,

determining whether the code identifies the second network, and

when the code identifies the second network,

identifying a point of interface between the first and second networks, and

routing the call to second network through the point of interface.

23. The method of claim 22, wherein the code is independent of a telephone number associated with the call.

24. The method of claim 22, wherein the code is a CIC code.

25. In a first interexchange communication network, a method of processing a call associated with a second interexchange communication network, comprising the steps of:

receiving a code associated with the call, the code identifying a carrier of choice,

determining whether the code identifies the second network,

when the code identifies the second network, identifying a preferred mode of service of the second network, and

when the preferred mode of service is a virtual private line service,

identifying a point of interface between the first and second networks, and

routing the call to the second network through the point of interface.

26. The method of claim 25, wherein the code is independent of a telephone number associated with the call.

27. The method of claim 25, wherein the code is a CIC code.