Least cost routing device for separate connection into phone line

• US 5,425,085 A
• Filed: 03/18/1994
• Issued: 06/13/1995
• Est. Priority Date: 03/18/1994
• Status: Expired due to Term

• Current Assignee: Epstein Drangel LLP
• Original Assignee: Rates Technology, Inc.
• Inventors: Weinberger, Gerald J., Lee, Roger C.
• Primary Examiner(s): Chin, Stephen
• Assistant Examiner(s): Shankar, Vijay
• Application Number:
  US08/210,670
• Time in Patent Office: 452 Days
• Field of Search: 379/111-116, 379/130-132, 379/219-221
• US Class Current: 379/114.02
• CPC Class Codes: H04M 15/30 the meter or calculation of charges not being controlled from an exchange
• CPC Class Codes: H04M 15/8044 Least cost routing
• CPC Class Codes: H04M 2215/42 Least cost routing, i.e. provision for selecting the lowest cost tariff
• CPC Class Codes: H04M 2215/745 Least cost routing, e.g. Automatic or manual, call by call or by preselection
• CPC Class Codes: H04Q 2213/13103 Memory
• CPC Class Codes: H04Q 2213/1313 Metering, billing
• CPC Class Codes: H04Q 2213/13138 Least cost routing, LCR
• CPC Class Codes: H04Q 2213/13141 Hunting for free outlet, circuit or channel
• CPC Class Codes: H04Q 2213/13199 Modem, modulation
• CPC Class Codes: H04Q 2213/13204 Protocols
• CPC Class Codes: H04Q 2213/1332 Logic circuits
• CPC Class Codes: H04Q 3/665 Circuit arrangements therefor

Abstract

A device interconnects within the phone line coming from a first phone and routes telephone calls along a least cost route originating from the first telephone to a second telephone via the network. A housing forms an enclosure and has a first jack for interconnection to the phone side of the phone line and a second jack for interconnection to the network side of the phone line. The housing forms an enclosure which includes a switch for disconnecting the first phone from the network. The device generates a source of current through the switch to the first phone corresponding to the amount of current provided by the phone network. A database stores billing rate parameters for determining various communication paths of different carriers based on parameters such as the time and date of the call. Phone calls from the first phone are detected and stored. The database is addressed and a plurality of communication switch paths are identified as well as the cost rate of each path. The cost rates for each identified path are compared to determine a least cost route for the call. The device generates a number sequence corresponding to a desired carrier so that the dialed call is routed through the second jack and phone line to the selected communication path and carrier so as to establish a switched connection between the first and second phones.

Claims

1. A device for routing telephone calls along a least cost route originating from a first telephone to a second telephone having an associated telephone number via a network having a plurality of alternate communication switch paths corresponding to different carriers which can be chosen to route the call and normallyproviding a current to said first telephone when said first telephone is in use, comprising

a housing forming an enclosure and comprising first jack means for connection to said first telephone and second jack means for connection to said network

switch means operatively connected to said first jack means for disconnecting said first telephone from said network,

means operatively connected to said switch means for generating a current through said switch means to the first telephone, corresponding to a current provided by said network,

database means for storing billing rate parameters for determining a least cost communication path for call corresponding to said telephone number, means operatively connected to said switch means for detecting and storing said telephone number originating from the first telephone means for addresssing said database means for identifying a plurality of communication switch paths to to said second telephone and the cost rate of each path,

means for comparing the cost rate of each path so as to determine a least cost route, and

means operatively connected to said switch means and said second jack means for generating a number sequence corresponding to a desired carrier so that said call is routed through said second jack means to the selected communication path and carrier to establish a switched connection between said first telephone and said second telephone phone.

2. The device according to claim 1 wherein said least cost communication path parameters include the time and date of the call.

3. The device according to claim 1 wherein said switch means connects said first telephone to said network during an incoming call.

4. The device according to claim 1 including an internal power supply connected to said means for generating a current.

5. The device according to claim 1 wherein said means for generating said number sequence comprises a dual tone multifrequency generator.

6. The device according to claim 1 wherein said housing is substantially cylindrical with opposing ends, wherein said first jack means is positioned on one end and said second jack means is positioned on the opposite end.

7. The device according to claim 1 wherein said detecting means includes a dual tone multifrequency detector.

8. The device according to claim 1 including means for maintaining the time and date so as to determine the least cost route based on the time and date of the call.

9. The device according to claim 1 wherein said cost may be given a bias for preference to a given carrier.

10. The device according to claim 1 including means for updating said database means with a current billing rate schedule.

11. The device according to claim 10 wherein said update means includes a circuit board mounted inside said enclosure, and said database means comprises a removable chip on said circuit board, and means for accessing said removable chip from outside said housing.

12. The device according to claim 11 wherein said means for accessing said removable chip includes a removable cover on said housing for accessing said chip.

13. The device according to claim 10 wherein said update means includes a modem for receiving signals through said telephone line and downloading the update information.

14. A device for routing telephone calls along a least cost route originating from a first telephone to a second telephone having an associated telephone number via a network having a plurality of alternate communication switch paths corresponding to different carriers which can be chosen to route the call and normally providing a current to said first telephone when said first telephone is in use, comprising

a housing forming an enclosure and comprising first jack means for connection to said first telephone, and second jack means for connection to said network, means positioned on said housing for visibly displaying the time and date,

switch means operatively connected to said first jack means for disconnecting said first telephone from said network,

means operatively connected to said first jack means for disconnecting said first telephone from said network,

means operatively connected to said switch means for generating a current through said switch means to said first telephone corresponding to said current provided by said network,

means operatively connected to said time and date display means and said switch means for receiving a predetermined dial sequence from said first telephone corresponding to a predetermined date and time to be displayed and means for changing the displayed time and date based on the received signals,

database means for storing billing rate parameters for determining a least cost communication path for a call corresponding to said telephone number, based on such factors as the time and date of the call,

means operatively connected to said switch means for detecting and storing said telephone number originating from the first telephone,

means for addressing said database means for identifying a plurality of communication switch paths to said second telephone and the cost rate of each path,

means for comparing the cost rate of each path so as to determine a least cost route, and means operatively connected to said switch means and said second jack means for generating a number sequence corresponding to a desired carrier so that said call is routed through said second jack means to the selected communication path and carrier to establish a switched connection between said first telephone and said second telephone.

15. The device according to claim 14 including means positioned on said housing for manually changing the date and time of the display.

16. The device according to claim 14 wherein said means for generating said number sequence comprises a dual tone multifrequency generator.

17. The device according to claim 14 wherein said housing is substantially cylindrical with opposing ends, wherein said first jack means is positioned on one end and second jack means is positioned on the other end.

18. The device according to claim 14 wherein said detecting means includes a dual tone multifrequency detector.

19. The device according to claim 14 including means for updating said database means with a current billing rate schedule.

20. The device according to claim 19 wherein said update means includes a circuit board mounted inside said enclosure, and said database means comprises a removable chip on said circuit board, and means for accessing said removable chip from outside said housing.

21. The device according to claim 20 wherein said means for accessing said removable chip includes a removable cover on said housing for accessing said chip.

22. The device according to claim 19 wherein said update means includes a modem for receiving signals through said telephone line and downloading the update information.

23. The device according to claim 14 wherein said cost may be given a bias for preference to a given carrier.

24. An apparatus for displaying a time quantity which can be initiated from a telephone of the type capable of generating dual tone multifrequency signals comprising

a housing forming an enclosure and comprising first jack means for interconnection to said telephone, and second jack means for connection to a telephone switching network, said network normally providing a current to said telephone when said telephone is in use, means positioned on said housing for visibly displaying a time quantity,

switch means operatively connected to said first jack means for disconnecting said telephone from said network,

means operatively connected to said switch means for generating a current through said switch means to said telephone corresponding to said current provided by said network,

means operatively connected to said means for displaying a time quantity and said first jack means for receiving said dual tone multifrequency signals, from said telephone when said telephone is disconnected from said network, said signals corresponding to said time quantity and for changing the displayed time quantity based on signals from said telephone, and means responsive to a dialing sequence originating on said telephone and operatively connected to said switch means for connecting said telephone to said network.

25. The apparatus according to claim 24 wherein said time quantity is the time of day.

26. The apparatus according to claim 24 wherein said time quantity is the date.