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Foreign Patent #1

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Foreign Patent WO9847298

A System, Method And Article Of Manufacture
For Switched Telephony Communication  

Patent Number:  WO9847298 
Publication date: 1998-10-22 
Inventor(s): ZEY DAVID A 
Applicant(s): MCI COMMUNICATIONS CORP (US) 
Requested Patent:  EP0976234 (WO9847298),  A3,  A3 
Application Number: WO1998US07927 19980415 
Priority Number(s): US19970835789 19970415; US19970834320 19970415 
IPC Classification: H04Q7/00 
Cited Documents: WO9823080; EP0802690; WO9722211; EP0767568; WO9728628; WO9723078; US5440620; WO9522221 

Abstract


A hybrid telecommunication system includes a switched network which transfers information across the Internet to provide multi-routed and multidimensional callback processing. The hybrid network includes one or more switched networks coupled to one or more packet transmission networks, and a call router coupled to the switched communication network and the packet transmission network to route information to the appropriate switched telephony device or Internet device address. A computer with an attached display communicates with the packet transmission network. The computer is used to initiate remote management of the hybrid network, including tests of the hybrid network. The tests include circuit analysis such as selecting signaling states which could be loop start, ground start, or detecting signals such as dual tone multifrequency, multifrequency or dialpulse. The hybrid network includes support for an operator to monitor the management of the hybrid network, and an expert system to regulate the Quality of Service of the hybrid telecommunication system.

Field Of The Invention

The present invention relates to the integration of the Internet with telephony systems, and more specifically, to a system, method and article of manufacture for using the Internet as the communication backbone of a communication system architecture while maintaining a rich array of call processing features.

Background of the Invention
The Internet has increasingly become the communication network of choice for the consumer e-mail marketplace. Recently, software companies have begun to investigate the transfer of telephone calls across the Internet. However, the system features that users demand of normal call processing are considered essential for call processing the
Internet. Today, those features are not available on the Internet. Thus, a system is required that connects the communication network including telephony capability with the Internet to facilitate callback processing.

Callback scenarios for reserving calls over existing telephony networks have been available for some time. Examples of such service are CSI
Callback, Rumilla Telecommunication for international callback and
SummitLink which provides international callback offering distribution, wholesaling and rebilling features. The Internet provides a website entitled, "Callback on the Net" which purports to "collect all available information on callback services." This information was accumulated by doing a Yahoo search utilizing the search term "callback".

International callback as provided by the prior art system refers to a user being able to dial a number to connect to a switch overseas. The caller allows the phone to ring twice and hangs up. The switch then utilizes the ANI and/or called number information to query a database of profile information stored on the switch to determine billing and other information on the caller. Then, the switch initiates a call to the caller and when the caller goes offhook, the switch provides a dialtone allowing the caller to access any number available to the switch. In this way, international or other long distance callers can obtain low cost long distance services so long as they are pre-registered for the service. This service still requires the caller to be responsible for all of the overhead associated with initiating call processing, requires a caller to learn the protocol of interfacing with the switch, does not provide reservation of such services such as conferencing, and it does not allow operator assistance on the calls.

Recently, AT & T has announced a service very similar to conferenceMCI (MCI's Operator Call-in Conference Call capability). This service termed "On-Line TeleConference" capability allows teleconference customers to use an on-line interface to allow customers to pre-arrange an AT & T
TeleConference call through the World Wide Web. However, while conference call definition of a number for each participate to call into to join the conference is provided, "all voice connections are established over the existing telephone network" and require all parties to contact a common number to establish the conference call (AT & T TeleConference
Service: On-Line Trial Information, 2/7/97).

While this new AT & T service is moving in the direction that the subject invention has already arrived at, it does not provide integration of voice over the Internet with existing network services, nor does it provide any mention of a callback architecture which allows a calling party to prearrange for a network service to contact one or more parties and effectively eliminate the need for any manual intervention. Moreover, it does not provide an operator on an exception basis for Internet telephony operations. Thus, a true union of the Internet and existing telephony networks is not provided.

"Callback" is a telephony term utilized by remote test systems in reference to accessing and testing customer's voice and data circuits which traverse through a Digital Cross-Connect System (DXC). When a callback feature is selected, the remote test system bridges a local phone line to a customer's DSO circuit. If the circuit under test is an analog circuit, the remote tester performs monitoring. If the circuit under test is a voice circuit, the remote tester performs voice testing which includes selecting appropriate signaling states for callback to the customer's phone over the circuit under test by the remote test system. The callback feature enables the remote tester to enter a phone number to a co-located phone residing at the remote tester's location.

The remote test system has local phone lines attached to an internal card. The purpose of the phone lines are to allow the test system to place outbound calls. After a remote user enters a number, which includes an area code or their co-located phone, the remote test system selects one of the local phone lines, goes off hood, and upon detecting dial tone from the local telco central office will dial pulse or DTMF the entered phone number. The remote tester's phone receives the call from the remote test system, goes off hook, and then the call from the remote test system to the remote tester is considered complete.

The remote tester can then either monitor the audible quality or initiate a call to the voice circuit customer's phone by selecting the appropriate signaling state for the circuit under test. Once the appropriate signaling state for the customer is selected, the channel bank card or PBX detects the incoming call and converts it to ring cycle to the customer's phone.

This action initiates a ringing condition to the customer's phone. Upon the customer answering the phone, the remote tester verbally communicates with the customer over the customer's circuit under test.

This testing is routinely performed for circuit assurance verification testing.

The remote test system has a limit of outbound calls that can be completed. This limit is dependent on the number of phone lines that can be supported by the test system's interface. There are also monthly access charges by the telephone company for each local line terminating into the test system.

Summary of the Invention
According to a broad aspect of a preferred embodiment of the invention, telephone calls, data and other multimedia information are routed through a hybrid network including a switched network which transfers information across the internet to provide multirouted and multidimensional callback processing. The hybrid network includes one or more switched networks coupled to one or more packet transmission networks that also couple a call router to the switched communication network and the packet transmission network to route information to the appropriate switched telephony device or internet device address. A computer with an attached display communicates with the packet transmission network, the computer is used to initiate remote management of the hybrid network, including tests of the hybrid network which include circuit analysis such as selecting signaling states which could be loop start, ground start, dual tone multifrequency detection or removing a line from service. The hybrid network includes support for an operator to monitor the management of the mybrid network, and an expert system to regulate the Quality of Service of the hybrid telecommunication system.

WE CLAIM:

1. A hybrid telecommunications system, which comprises:
a switched communications network;
a packet transmission network coupled to the switched
communications network;
a call router coupled to the switched communications network and the packet transmission network; and
a memory coupled to the call router and having stored therein a call parameter database;
the call router being configured to route a call over the switched communications network and the packet transmission network based on at least one call parameter from the call parameter database.

2. The telecommunications system of claim 1 in which the call parameter database comprises profile information pertaining to a subscriber to the hybrid telecommunications system.

3. The telecommunications system of claim 1 in which the call parameter database comprises information pertaining to a call type.

4. The telecommunications system of claim 1 in which the call parameter database comprises information pertaining to usage of the switched communications network and the packet transmission network.

5. The telecommunications system of claim 1 in which the call parameter database comprises information pertaining to time of the call.

6. The telecommunications system of claim 1 in which the packet transmission network comprises an internet.

7. The telecommunications system of claim 1 in which the switched communications network comprises a public switched communications network.

8. The telecommunications system of claim 1 in which the public
switched communications network is a telephone network.

9. A method for directing calls in a hybrid telecommunications system including a switched communications network and a packet transmission network, which comprises:
storing a call parameter database in a memory;
receiving a call on the hybrid telecommunications system;
accessing the call parameter database to determine at least one
call parameter; and
routing the call over the switched communications network and the packet transmission network based on the at least one call parameter.

10. The method of claim 9 in which the call parameter database comprises profile information pertaining to a subscriber to the hybrid telecommunications system.

11. The method of claim 9 in which the call parameter database comprises information pertaining to a call type.

12. The method of claim 9 in which the call parameter database comprises information pertaining to usage of the switched communications network and the packet transmission network.

13. The method of claim 9 in which the call parameter database comprises information pertaining to time of the call.

14. The method of claim 9 in which the packet transmission network comprises an internet.

15. The method of claim 14 in which the switched communications network comprises a public switched communications network.

16. The method of claim 15 in which the public switched communications network is a telephone network.

17. A computer program embodied on a computer-readable medium for directing calls in a hybrid telecommunications system including a switched communications network and a packet transmission network, which comprises:
first software that stores a call parameter database in a memory;
second software that accesses the call parameter database when the hybrid telecommunications system receives a call to determine at least one call parameter; and
third software that routes the call over the switched communications network and the packet transmission network based on the at least one call parameter.

18. The computer program embodied on a computer-readable medium of claim 17 in which the call parameter database comprises profile information pertaining to a subscriber to the hybrid telecommunications system.

19. The computer program embodied on a computer-readable medium of claim 17 in which the call parameter database comprises information pertaining to a call type.

20. The computer program embodied on a computer-readable medium of claim 17 in which the call parameter database comprises information pertaining to usage of the switched communications network and the packet transmission network.

21. The computer program embodied on a computer-readable medium of claim 17 in which the call parameter database comprises information pertaining to time of the call.

22. The computer program embodied on a computer-readable medium of claim 17 in which the packet transmission network comprises an internet.

23. The computer program embodied on a computer-readable medium of claim 22 in which the switched communications network comprises a public switched communications network.

24. The computer program embodied on a computer-readable medium of claim 23 in which the public switched communications network is a telephone network.

25. A hybrid telecommunications system, which comprises:
a switched communications network;
a packet transmission network coupled to the switched
communications network;
a call router coupled to the switched communications network and the packet transmission network
a computer with an attached display in communication with the switched communications network and the packet transmission network; and
the computer being configured to initiate remote management of the hybrid telecommunications system.

26. The hybrid telecommunications system of claim 25 further comprising callback logic capable of initiating tests of the hybrid telecommunications system.

27. The hybrid telecommunications system of claim 25 wherein the tests includes circuit analysis.

28. The hybrid telecommunications system of claim 25 further comprising a management device for selecting signaling states such as loop start, ground start or signaling such as dual tone multifrequency detection, multifrequency or dialpulse.

29. The hybrid telecommunications system of claim 25 wherein the hybrid telecommunications system includes support for internet telephony.

30. The hybrid telecommunications system of claim 25 comprising means for an operator to monitor the management of the hybrid network.

31. The hybrid telecommunications system of claim 25 further comprising an expert system regulating the Quality of Service of the hybrid telecommunications system.

32. A method for enabling communication on a hybrid telecommunications system, the hybrid telecommunications system including one or more switched communication networks coupled to one or more packet transmission networks, comprising the steps of:
coupling a call router to the switched communication network and the packet transmission network; and
integrating a computer with an attached display to communicate with the packet transmission network, the computer being capable of initiating remote management of the hybrid telecommunications system.

33. The method for enabling communication on the hybrid telecommunications system as recited in claim 32, wherein callback logic is utilized to initiate tests of the hybrid telecommunications system.

34. The method for enabling communication on the hybrid telecommunications system as recited in claim 33, wherein the tests includes circuit analysis.

35. The method for enabling communication on the hybrid telecommunications system as recited in claim 32, further comprising managing the hybrid telecommunications system by selecting signaling states such as loop start, ground start, or detecting signals such as dual tone multifrequency, multifrequency or dialpulse.

36. The method for enabling communication on the hybrid telecommunications system as recited in claim 32, wherein the hybrid telecommunications system includes support for internet telephony.

37. The method for enabling communication on the hybrid telecommunications system as recited in claim 32, further comprising the step of an operator monitoring the management of the hybrid telecommunications system.

38. The method for enabling communication on the hybrid telecommunications system as recited in claim 32, further comprising the step of using an expert system to regulate the Quality of Service of the hybrid telecommunications system.

39. A computer program embodied on a computer-readable medium for enabling communication on a hybrid telecommunications system, the hybrid telecommunications system including one or more switched networks coupled to one or more packet transmission networks, comprising:
first software that couples a call router to the switched communications network and the packet transmission network; and
second software that communicates with the packet transmission network, the second software initiating remote management of the hybrid communications system.

40. The computer program embodied on a computer-readable medium for enabling communication on the hybrid telecommunications system as recited in claim 39, further including callback logic to initiate tests of the hybrid telecommunications system.

41. The computer program embodied on a computer-readable medium for enabling communication on the hybrid telecommunications system as recited in claim 40, wherein the tests includes circuit analysis.

42. The computer program embodied on a computer-readable medium for enabling communication on the hybrid telecommunications system as recited in claim 39, further comprising management software for selecting signaling states such as loop start, ground start, or detecting signals such as dual tone multifrequency, multifrequency or dialpulse.

43. The computer program embodied on a computer-readable medium for enabling communication on the hybrid telecommunications system as recited in claim 39, wherein the hybrid telecommunications system includes support for internet telephony.

44. The computer program embodied on a computer-readable medium for enabling communication on the hybrid telecommunications system as recited in claim 39, further comprising operator software facilitating an operator to monitor the management of the hybrid telecommunications system.

45. The computer program embodied on a computer-readable medium for enabling communication on the hybrid telecommunications system as recited in claim 39, wherein the hybrid telecommunications system includes an expert system regulating the Quality of Service of the hybrid telecommunications system.
 

Data supplied from the esp@cenet database - l2

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