Clearinghouse server for internet telephony and multimedia communications

• US 7,912,067 B2
• Filed: 11/17/2005
• Issued: 03/22/2011
• Est. Priority Date: 09/11/2000
• Status: Expired due to Fees

• Current Assignee: Transnexus Incorporated
• Original Assignee: Transnexus Incorporated
• Inventors: Thomas, Stephen Anthony, Isakbayev, Dmitry, Dalton, James P G Jr.
• Primary Examiner(s): Trost, IV; William
• Assistant Examiner(s): Nguyen; Toan D
• Application Number:
  US11/282,945
• Publication Number:
  US 20060155998A1
• Time in Patent Office: 1,951 Days
• Field of Search: 370/252, 370/328, 370/352, 370/401, 370/395.42, 379/144.01, 713/153, 713/172, 713/156, 713/168, 713/175, 713/201, 726/12, 726/14, 726/26, 726/27, 726/29, 726/10, 726/1, 726/2
• US Class Current: 370/395.42
• CPC Class Codes: H04L 63/0823 using certificates cryptographic mechanisms or cryptographic arrangements for entity authentication involving certificates H04L9/3263
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1101 Session protocols
• 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 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 15/49 Connection to several service providers
• CPC Class Codes: H04M 15/56 for VoIP communications
• CPC Class Codes: H04M 2215/202 VoIP; Packet switched telephony
• CPC Class Codes: H04M 2215/46 Connection to several service providers
• CPC Class Codes: H04M 3/38 Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections queuing arrangements H04Q3/64
• CPC Class Codes: H04M 3/382 using authorisation codes or passwords
• 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

Abstract

A clearinghouse server for routing multi-media communications, including telephony calls, between a source device and a destination device via a distributed computer network, such as the global Internet. The clearinghouse server can authorize the completion of a communication from a source device to a destination device and collect usage-related information for the completed communication. In response to an authorization request issued by an enrolled source device, the clearinghouse server can identify one or more available destination devices available to accept a communication from an authorized source device. The clearinghouse server can provide a list of the identified destination devices, typically organized in a rank order, by sending an authorization response to the source device. In turn, the source device can use this list to select a destination device and contact that selected device via the computer network to complete the communication.

Claims

1. A method for authorizing and routing a telephone communication with a clearinghouse server between a source Voice over Internet Protocol (VoIP) device and a destination VoIP device, comprising the steps of:

receiving an authorization request from a source VoIP device;

determining a communication route for completing a communication originating at the source VoIP device;

identifying one or more destination VoIP devices available to complete the telephone communication;

balancing use of the one or more destination VoIP devices with the clearinghouse server by ranking the one or more destination VoIP devices according to an algorithm that sums weight values which are assigned to each destination VoIP device;

generating a list comprising the ranked destination VoIP devices;

generating an authorization token and a transaction identifier for each identified destination VoIP device;

forwarding the authorization tokens, transaction identifiers, and list to the source VoIP device;

selecting a destination VoIP device from the list; and

completing the telephone communication with the selected destination VoIP device.

2. The method of claim 1, further comprising tie step of creating a call detail record.

3. The method of claim 2, wherein the step of creating the call detail record further comprises the step of storing one of a transaction identifier, the identified destination VoIP devices, tokens corresponding to the each identified destination VoIP device, a source group number assigned to the source VoIP device, a destination group number corresponding to each destination VoIP device, calling party identity, called maximum authorized call length, a time-date stamp, and a server identification number.

4. The method of claim 1, further comprising the step of extracting communication information from the authorization request.

5. The method of claim 4, wherein the step of extracting communication information further comprises the steps of extracting one of a source VoIP device identity, dialed number, and call identifier from the authorization request.

6. The method of claim 1, further comprising the step of determining if the source VoIP device is enrolled with a clearinghouse server.

7. The method claim 1, further comprising where the ordering destination VoIP devices based first on a destination group assignment for each of the destination VoIP devices and second on the VoIP device.

8. The method of claim 7, wherein a number of VoIP devices in a destination group identified as destination VoIP devices may be truncated.

9. The method of claim 7, wherein destination VoIP devices suggested by the source VoIP device can be combined with destination VoIP devices identified by the clearinghouse server.

10. The method of claim 7, wherein destination VoIP devices suggested by the source VoIP device are ranked ahead of VoIP devices identified by the clearinghouse server.

11. The method of claim 1, wherein source VoIP devices are assigned to source groups and destination VoIP devices arc assigned to VoIP device groups for the purpose of determining authorization and routing of traffic between source and destination VoIP devices.

12. The method of claim 1, wherein the clearinghouse server is a first clearinghouse server, for authorizing and routing communication between a source VoIP device and destination VoIP device enrolled with different clearinghouses, defined be the steps further comprising:

assigning a second external clearinghouse server as a source VoIP device and a destination VoIP device;

sending an authorization request to the second external clearinghouse;

obtaining a list of destination VoIP devices, authorization tokens, and transaction identifiers from the second external clearinghouse;

preparing an authorization response with a list destination VoIP devices, authorization tokens, and transaction identifiers from the second external clearinghouse to a source VoIP device in an authorization response;

sending an authorization response from an external destination clearinghouse to a source VoIP device;

reporting usage indication between clearinghouse VoIP devices; and

confirming receipt of usage indication between clearinghouse VoIP devices.

13. The method of claim 12, wherein the second external clearinghouse server VoIP device may be assigned to a source group or destination group by the first clearinghouse server.

14. The method of claim 12, wherein an external clearinghouse VoIP device may be enrolled and assigned as a source VoIP device or destination device with a clearinghouse server further comprising the steps of:

receiving an enrollment request from a VoIP device;

creating a public key certificate;

sending the public key certificate to the VoIP device;

establishing secure communications with the VoIP device based upon the public key certificate; and

receiving information from the VoIP device.

15. The method of claim 12, wherein a clearinghouse VoIP device the second clearinghouse server may send an authorization request to an external another clearinghouse requesting identification and authorization to use destination VoIP devices.

16. The method of claim 12, wherein each authorization token from the destination second clearinghouse server assigned as a destination VoIP device is packaged in the authorization response from the source first clearinghouse server to the source VoIP device.

17. The method of claim 12, wherein each transaction identifier generated from the destination second clearinghouse server VoIP device is combined with a transaction identifier of the source first clearinghouse to create a unique transaction identifier including information that identifies both source and destination clearinghouse.

18. The method of claim 12, wherein each transaction identifier, provided in the usage indication message, can be used to identify if and how the usage indication message should be forwarded to another clearinghouse VoIP device.

19. The method of claim 12, wherein each transaction identifier generated by a destination second clearinghouse VoIP device server can be modified by each successive other clearinghouses VoIP device to create a unique transaction identifier delivered to the source VoIP device that identifies all clearinghouses in the chain of authorization.

20. The method of claim 12, further comprising the step of creating a call detail record.

21. The method of claim 20, wherein the step of creating a call detail record further comprises the steps of:

storing the transaction identifier from the destination clearinghouse VoIP device,

storing the transaction identifier created by the source clearinghouse engine,

storing the identified destination VoIP devices,

storing tokens corresponding to each identified destination VoIP device,

storing a source group number assigned to the source VoIP device,

storing a destination group number corresponding to each destination VoIP device,

storing a number identifying the destination clearinghouse and server,

storing a time-date stamp, and

storing a server identification number of the source clearinghouse.

22. The method of claim 1 wherein the step to create an authorization token is modified by further comprises adding and, translating information about a destination VoIP device before creating the authorization token.

23. A method for enrolling a Voice over Internet Protocol (VoIP) device for operation with a VoIP clearinghouse server, comprising the steps of:

receiving an enrollment request from a VoIP device;

creating a public key certificate;

sending the public key certificate to the VoIP device;

establishing secure communications with the VoIP device based upon the public key certificate;

receiving information from the VoIP device;

sending a configuration file to the VoIP device from the VoIP clearinghouse server comprising a software license key and a name of a group to which the VoIP device is assigned, the configuration file establishing interoperability between the VoIP device and the VoIP clearinghouse server.

24. The method of claim 23, wherein the step of receiving an enrollment request further comprises the step of receiving a public key from the VoIP device.

25. The method of claim 23, wherein the step of creating the configuration file further comprises at least one of creating the configuration file comprising use of software license keys, cryptographic keys, enable and disable enrollment flags, routing information, call detail record flags, secure socket layer flags, group information, and VoIP device information.