Call-processing system and method

• US 5,590,181 A
• Filed: 10/15/1993
• Issued: 12/31/1996
• Est. Priority Date: 10/15/1993
• Status: Expired due to Term

• Current Assignee: Global Crossing Telecommunications Incorporated (Lumen Technologies, Inc.)
• Original Assignee: Link USA Corporation
• Inventors: Berry, Dana B., Austin, Mark A., Smith, Keith E., Busch, Eric M., Kripakaran, Raghavan, Hogan, Steven J., Vercande, David J., Murdock, Douglas R., Jayasimha, Madhigubba G., Goodman, Todd A., Tangeman, Michael R., Feltz, Kristi T.
• Primary Examiner(s): Chin, Stephen
• Assistant Examiner(s): KIM, KEVIN
• Application Number:
  US08/136,211
• Time in Patent Office: 1,173 Days
• Field of Search: 379/112, 379/113, 379/115, 379/201, 379/219, 379/220, 379/223, 379/242, 379/243, 379/265, 379/203, 379/260, 379/262
• US Class Current: 379/114.14
• CPC Class Codes: H04M 15/00 Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
• CPC Class Codes: H04M 15/44 Augmented, consolidated or itemized billing statement or bill presentation
• CPC Class Codes: H04M 15/47 Fraud detection or prevention means
• CPC Class Codes: H04M 15/68 Payment of value-added services
• CPC Class Codes: H04M 2215/0104 Augmented, consolidated or itemised billing statement, e.g. additional billing information, bill presentation, layout, format, e-mail, fax, printout, itemised bill per service or per account, cumulative billing, consolidated billing
• CPC Class Codes: H04M 2215/0148 Fraud detection or prevention means
• CPC Class Codes: H04M 2215/0196 Payment of value-added services, mainly when their charges are added on the telephone bill, e.g. payment of non-telecom services, e-commerce, on-line banking
• CPC Class Codes: H04M 3/42 Systems providing special services or facilities to subscribers specially adapted for wireless communication networks H04W4/00
• CPC Class Codes: H04Q 3/0062 Provisions for network management
• CPC Class Codes: Y10S 707/99953 Recoverability
• CPC Class Codes: Y10S 707/99955 Archiving or backup

Abstract

A system and method for processing telephone calls and providing enhanced services is presented. The call processing system includes a network control processor for controlling the processing and routing of the calls and for providing enhanced features, and a matrix switch for routing calls from an originating location to a terminating location. Operator consoles can be included to provide operator assistance to the caller. The network control processor comprises a central message processor that receives call dam, determines the type of call, determines the processing required, and determines whether operator assistance is required. A call route distributor allocates an operator console to the call if required. A billing server is used to track billing information for the call while it is in progress. A database server is provided for database look-ups and storage. The call processing system also includes a validation system, a billing system, a distribution system, and a fraud detection and prevention system. The validation system is used to validate call information to determine whether the call can be placed. The billing system determines rates for calls and calculates the cost of completed calls. The distribution system distributes changes that are made to a master database to the appropriate slave database. The fraud detection and prevention system monitors originating and in-process calls to detect and possibly prevent possible fraudulent uses of phone services and systems. A client interface is provided to facilitate communications among applications and DEF records are used to define specific call processing actions.

Claims

1. A call-processing system for processing a telephone call comprising call audio and call data, wherein the call audio of the telephone call is routed to a destination by a matrix switch that includes a matrix switch processor, the call-processing system comprising:

a network control processor that provides an interface between the matrix switch and a common channel signaling network, said network control processor comprising;

means for receiving the call data for the telephone call, that is intended for the matrix switch, from said common channel signaling network,

means for determining a routing for the call audio of the telephone call,

means for sending switch control data to the matrix switch processor of the matrix switch to effect said routing of the call audio of the telephone call, and

means for sending operator control data to an operator console connected to the matrix switch via a connection between said network control processor and said operator console to support a telephone call that requires operator assistance.

2. The system of claim 1, further comprising a billing server which comprises:

means for assigning a unique call handle to every new telephone call; and

means for sending said unique call handle to said central message processor, wherein said unique call handle identifies the telephone call at each phase of processing within the call processing system.

3. The system of claim 2, wherein said billing server further comprises:

means for timing a connected telephone call while it is in progress;

means for informing a fraud detection system of the start and stop times of a telephone call; and

means for creating a billing information record for a telephone call, wherein said billing information record is used to facilitate a real-time rating service and a real-time billing service.

4. The system of claim 3, wherein said billing server further comprises a secondary billing server for redundancy.

5. The system of claim 2, further comprising means for determining whether said unique call handle already exists for the telephone call to determine whether the telephone call is a new telephone call or an existing telephone call.

6. The system of claim 1, further comprising a database server which comprises:

means for storing call parameters in a plurality of data records in a call ID database, said call parameters identifying a customized call handling procedure that indicates at least one of the type of telephone call being placed, the type of operator assistance required, and processing required for the telephone call; and

means for retrieving said call parameters for a received telephone call from said call ID database, wherein said means for retrieving uses the call data of a telephone call as a key to search said plurality of data records containing said call parameters.

7. The system of claim 6, further comprising:

means for receiving the call data;

means for retrieving call parameters from said database server using the call data;

means for determining whether operator assistance is required and instructing [said]a call route distributor to allocate an operator console; and

means for instructing the matrix switch to route the telephone call to a destination.

8. The system of claim 7, wherein said call route distributor comprises means for allocating an operator console to the telephone call based on said call parameters.

9. The system of claim 1, further comprising a validation system coupled to said network control processor and configured to receive a validation request from an operator console, wherein said validation request includes information from the user that requires validation, said validation system comprising an instruction database means for storing instructions that define a procedure on validating the information, wherein said instructions are stored in said instruction database means based on one or more fields of the call data to enable said instructions to be customized at a user and/or customer level.

10. The system of claim 9, wherein said validation system further comprises a validation database for storing validation information used in said validation procedures.

11. The system of claim 10, wherein said validation database comprises means for sending a request to an external source for validation of said information and for receiving a response from said external source indicating whether said information is valid.

12. The system of claim 1, further comprising a billing system, coupled to said network control processor and configured to determine a rate for a telephone call and to determine a cost of a telephone call based on said rate.

13. The system of claim 1, further comprising a fraud system, coupled to said network control processor, for detecting possible occurrences of fraudulent use of a calling network.

22. The system of claim 1, wherein said operator console is a manual operator console.

23. The system of claim 1, wherein said operator console is an automated voice response unit.

14. A method for processing a telephone call comprising call audio and call data, wherein the call audio of the telephone call is routed to a destination by a matrix switch that is controlled by a matrix switch processor, comprising the steps of:

receiving, in a network control processor, the call data for the telephone call, that is intended for the matrix switch, from a common channel signaling network, wherein said network control processor provides an interface between the matrix switch and said common channel signaling network;

determining by said network control processor how the call audio of the telephone call is to be routed by the matrix switch;

sending by said network control processor switch control data to the matrix switch processor of the matrix switch;

routing by the matrix switch the telephone call to a destination based on said switch control data received by the matrix switch processor; and

sending by said network control processor operator control data to an operator console connected to the matrix switch via a connection between said network control processor and said operator console if the telephone call requires operator assistance.

15. The method of claim 14, further comprising the steps of:

a database server within said network control processor storing call parameters in a plurality of data records in a call ID database, said call parameters identifying a customized call handling procedure that indicates at least one of the type of telephone call being placed, the type of operator assistance required, and processing required for the telephone call; and

said database server retrieving said call parameters for a received telephone call from said call ID database, wherein said step of retrieving uses the call data of a telephone call as a key to search said plurality of data records containing said call parameters.

16. The method of claim 14, further comprising the steps of:

assigning by a billing server in said network control processor a unique call handle to every new telephone call; and

sending by said billing server said unique call handle to said central message processor, wherein said unique call handle identifies the telephone call at each phase of processing within the call processing system.

17. The method of claim 16, further comprising the steps of:

timing a connected telephone call while it is in progress;

informing a fraud detection system of the start and stop times of a telephone call; and

creating a billing information record for a telephone call, wherein said billing information record is used to facilitate a real-time rating service and a real-time billing service.

18. The method of claim 16, further comprising the step of determining whether said unique call handle already exists for the telephone call, thereby identifying whether the telephone call is a new telephone call or an existing telephone call.

19. The method of claim 15, further comprising the steps of:

receiving by a central message processor the call data;

retrieving parameters from said database server using the call data;

determining whether operator assistance is required and instructing a call route distributor to allocate an operator console; and

instructing the matrix switch to route the telephone call to a destination.

20. The method of claim 15, wherein said step of sending operator control data comprises the step of sending operator control data to a manual operator console.

21. The method of claim 15, wherein said step of sending operator control data comprises the step of sending operator control data to an automated voice response unit.