Call waiting feature for a telephone line connected to the internet

• US 6,353,611 B1
• Filed: 12/23/1997
• Issued: 03/05/2002
• Est. Priority Date: 11/27/1995
• Status: Expired due to Term

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Norris, John H., Russell, Thomas Leonard Jr.
• Primary Examiner(s): Kizou, Hassan
• Assistant Examiner(s): Pezzlo, John
• Application Number:
  US08/997,018
• Time in Patent Office: 1,533 Days
• Field of Search: 370/352-356, 370/400, 370/401, 370/237, 370/496, 370/230, 370/389, 370/466, 379/88.13, 379/215, 379/211, 379/201, 379/100.01, 395/200.57, 709/204
• US Class Current: 370/356
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04M 2203/156 On-line status dependent routing
• CPC Class Codes: H04M 2203/2011 Service processing based on information specified by a party before or during a call, e.g. information, tone or routing selection
• CPC Class Codes: H04M 2242/22 Automatic class or number identification arrangements
• 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: H04M 3/42042 Notifying the called party of information on the calling party details within substation equipment H04M1/57, signalling details H04Q3/72
• CPC Class Codes: H04M 3/42102 Making use of the called party identifier
• CPC Class Codes: H04M 3/428 Arrangements for placing incoming calls on hold
• CPC Class Codes: H04M 3/4281 when the called subscriber is connected to a data network using his telephone line, e.g. dial-up connection, Internet browsing
• 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
• CPC Class Codes: H04M 7/12 for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
• CPC Class Codes: H04Q 3/72 Finding out and indicating number of calling subscriber

Abstract

Conventional Internet access service and new computer programs are added to a conventional telephone central office. This system is able to alert a subscriber whose telephone line is connected to the Internet of a waiting call via the Internet access connection. Specifically, in response to a call that is waiting for a subscriber, the system establishes a new communication with the subscriber using the Internet access connection and new programs in the subscriber'"'"'s data terminal. The system then notifies the subscriber of the waiting call via the Internet access connection. The system may then forward the telephone call to the subscriber via the Internet access connection responsive to a subscriber'"'"'s request to do so without terminating the subscriber'"'"'s Internet connection, or the subscriber may choose to answer the call in a conventional manner, or may select another option in response to the call notification.

Claims

1. A method of processing a telephone call from a calling station to a called station that is busy as a result of having established a connection to a data network via a central office, said central office including a switch and data network access equipment for connecting said called station to said data network and for alerting a subscriber at said called station to receipt of said call from said calling station via said connection to said data network, said method comprising the steps of:

receiving said call at said central office and responsive to said called station being busy, said central office sending a message to said called station via said connection to said data network to alert said subscriber at said called station to the receipt of said call, and

said central office connecting said calling station to said called station via said connection to said data network so that a caller at said calling station may communicate with said subscriber at said called station.

2. The method of claim 1 wherein said central office includes an access server for establishing connections to said data network.

3. The method of claim 1 wherein said step of connecting said calling station includes the step of,

responsive to receiving from said called station via said connection a message containing a request to answer said call, then performing said step of connecting.

4. The method of claim 1 wherein said step of connecting said calling station includes the step of multiplexing signals received from said calling station and signals received from said data network and addressed to said called station over said connection to said called station.

5. The met of claim 1 wherein said step of connecting said calling station includes the step of routing data signals received from said called station via said connection to said data network and routing voice signals received from said called station via said connection to said calling station.

6. The method of claim 3 wherein said step of connecting said calling station includes the step of, responsive To said message from said called station containing a request to connect said call from said calling station to an alternate telephone number, then routing said call to said alternate telephone number.

7. The method of claim 3 wherein said step of connecting said calling station includes the step of, responsive to said message from said called station containing a request to set up a three-way call connection between the called station, the calling station and a station currently connected to the called station, then setting up said three-way call connection.

8. The method of claim 1 wherein said step of connecting said calling station includes the step of, responsive to a message from said called station containing a request to not answer said call from a calling station, then not answering said call.

9. The method of claim 1 wherein said data network is an Internet network further comprising the steps of

responsive to receiving an initial call from said called station at said central office, connecting said initial call to said Internet,

determining if said subscriber also subscribes to a call waiting service, if so, then activating said call waiting service.

10. The method of claim 9 wherein said step of activating includes the step of sending a message to said called station via said connection to notify said called station that said activation has been executed.

11. The method of claim 9 wherein if said subscriber does not subscribe to said call waiting service, then offering said call waiting service for the duration of said Internet connection, and

performing said activating step if said subscriber elects to accept said service offer.

12. The method of claim 11 wherein said step of activating includes the step of sending a message to said called station via said connection to notify said called station that said activation has been executed.

13. The method of claim 1 wherein said data network is a public network such as the Internet.

14. The method of claim 1 wherein said data network is a private network such as an intranet.

15. A method of processing a telephone call from a calling station to a called station that is busy as a result of having established a connection to a data network via an enhanced telephone switching system of the public switched network, said method comprising the steps of:

receiving said call at said enhanced telephone switching system and, responsive to said called station being busy, said enhanced telephone switching system sending a message to said called station via said connection to said data network to alert a subscriber at said called station to the receipt of said call, said data message being sent without first having to forward or redirect said call via said public switched network, and

said enhanced telephone switching system connecting said calling station to said called station via said connection to said data network so that a caller at said calling station may communicate with a subscriber at said called station.

16. The method of claim 15 wherein said enhanced telephone switching system includes an access server for establishing connections to said data network.

17. The method of claim 15 wherein said step of connecting said calling station includes the step of,

responsive to receiving from said called station via said connection a message containing a request to answer said call, then performing said step of connecting.

18. The method of claim 15 wherein said step of connecting said calling station includes to step of multiplexing signals received from said calling station and signals received from said data network and addressed to said called station over said connection to said called station.

19. The method of claim 15 wherein said step of connecting said calling station includes the step of routing data signals received from said called station via said connection to said data network and routing voice signals received from said called station via said connection to said calling station.

20. The method of claim 17 wherein said step of connecting said calling station includes the step of, responsive to said message from said called station containing a request to connect said call from said calling station to an alter telephone number, then routing said call to said alternate telephone number.

21. The method of claim 17 wherein said step of connecting said calling station includes the step of, responsive to said message from said called station containing a request to set up a three-way call connection between the called station, the calling station and a station currently connected to the called station, then setting up said three-way call connection.

22. The method of claim 15 wherein said step of connecting said calling station includes the step of, responsive to a message from said called station containing a request to not answer said call from a calling station, then not answering said call.

23. The method of claim 15 wherein said data network is an Internet network further comprising the steps of

responsive to receiving an initial call from said called station at said enhanced telephone switching system, connecting said initial call to said Internet,

determining if sad subscriber also subscribes to a call waiting service, if so, then activating said call waiting service.

24. The method of claim 23 wherein said step of activating includes the step of sending a message to said called station via said connection to notify said called station that said activation has been executed.

25. The method of claim 23 wherein if said subscriber does not subscribe to said call waiting service, then offering said call waiting service for the duration of said Internet connection, and

performing said activating step if said subscriber elects to accept said service offer.

26. The method of claim 25 wherein said step of activating includes the step of sending a message to said called station via said connection to notify said called station that said activation has been executed.

27. The method of claim 15 wherein said data network is a public network such as the Internet.

28. The method of claim 15 wherein said data network is a private network such as an Internet.

29. A method of processing a call waiting feature for a first telephone station set whose telephone line is connected lo the Internet comprising the steps of

responsive to receiving at a central office, an initial call from said first telephone station, extending a connection from said first telephone station to said Internet,

receiving at said central office a voice call from a second telephone station directed to said first telephone station, and, responsive to said first telephone station being connected to said Internet, said central office sending a data message via said connection to said first telephone station to alert a subscriber to receipt of the voice call from said second telephone station, and

said central office bridging a connection to said second telephone station with the connection between said Internet and said first telephone station so that a caller at said second telephone station may communicate with said subscriber at said first telephone station,

wherein said central office includes a switch and Internet access equipment for extending said connection from said first telephone station to said Internet and for alerting said subscriber at said first telephone station to receipt of said voice call from said second telephone station via said connection to said Internet.

30. The mead of claim 29 wherein said central office includes an access server for extending connections to said Internet.

31. The method of claim 29 further comprising the steps of

responsive to receiving from said first telephone station a message containing a request to answer said voice call, performing said step of bridging.

32. The method of claim 29 wherein said step of bridging said second telephone station includes the step of multiplexing voice signals received from said second telephone station and data signals received from said Internet and addressed to said first telephone station over said connection to said first telephone station.

33. The method of claim 29 wherein said step of bridging said second telephone station includes the step of routing data signals received from said first telephone station via said connection to said Internet and routing voice signals received from said called station via said connection of said calling station.

34. The method of claim 31 wherein said step of bridging said second telephone station includes the step of, responsive to receipt of said message from said first telephone station containing a request to forward said voice call from said second telephone station to an alternate telephone number, then routing said call from said second telephone station to said alternate telephone number.

35. The method of claim 31 wherein said step of bridging said second telephone station includes the step of, responsive to receipt of said message from said first telephone station contain a request to set up a three-way call connection between said first telephone station, said second telephone station and a third telephone station currently connected to said first telephone station, then creating said three-way call connection.

36. The method of claim 29 wherein said step of connecting said calling station includes the step of, responsive to a message from said first telephone station containing a request to not answer said voice call from said first telephone station, then not answering the voice call.

37. The method of claim 29 further comprising the steps of

responsive to connecting the initial call to said Internet determining if a subscriber associated with said first telephone station also subscribes to a call waiting service, if so, then activating said call waiting service.

38. The method of claim 37 wherein if a subscriber associates with said first telephone station does not subscribe to said call waiting service, then offering to activate said call waiting service for the duration of said Internet connection, and

performing said activating step if said subscriber elects to accept said service offer.

39. The method of claim 38 wherein said step of activating includes the step of sending a message to said first telephone station via said Internet connection to notify said subscriber that said activation has been executed.

40. A method of processing a call waiting feature for a first telephone station set whose telephone line is connected to the Internet comprising the steps of

responsive to receiving at an enhanced telephone switching system of the public switched network, an initial call from said first telephone station, extending a connection from said first telephone station to said Internet

receiving at said enhanced telephone switching system a voice call from a second telephone station directed to said first telephone station, and, responsive to said first telephone station being connected to said Internet, said enhanced telephone switching system sending a data message via said connection to said first telephone station to alert a subscriber to receipt of the voice call from said second telephone station, said data message being sent without first having to forward or redirect said voice call via said public switch network, and

said enhanced telephone switching system bridging a connection to said second telephone station with the connection between said Internet and said first telephone station so that a caller at said second telephone station may communicate with said subscriber at said first telephone station.

41. The method of claim 40 wherein said enhanced telephone switching system includes an access server for extending connections to said internet.

42. The method of claim 40 further comprising the steps of

responsive to receiving from said first telephone station a message containing a request to answer said voice call, performing said step of bridging.

43. The method of claim 40 wherein said step of bridging said so telephone station includes the step of multiplexing voice signals received from said second telephone station and data signals received from said Internet and addressed to said first telephone station over said connection to said first telephone station.

44. The method of claim 40 wherein said step of bridging said second telephone station includes the step of routing data signals received from said first telephone station via said connection to said Internet and routing voice signals received from said called station via said connection of said calling station.

45. The method of claim 42 wherein said step of bridging said second telephone station includes the step of, responsive to receipt of said message from said first telephone station containing a request to forward said voice call from said second telephone station to an alternate telephone number, then routing said call from said second telephone station to said alternate telephone number.

46. The method of claim 42 wherein said step of bridging said second telephone station includes the step of, responsive to receipt of said message from said first telephone station containing a request to set up a three-way call connection between said first telephone station, said second telephone station and a third telephone station currently connected to said first telephone station, then creating said three-way call connection.

47. The method of claim 40 wherein said step of connecting said calling station includes the step of, responsive to a message from said first telephone station containing a request to not answer said voice call from said first telephone station, then not answering the voice call.

48. The method of claim 40 further comprising the steps of responsive to connecting initial call to said Internet, determining if a subscriber associated with said first telephone station also subscribes to a call waiting service, if so, then activating said call waiting service.

49. The method of claim 48 wherein if a subscriber associated with said first telephone station does not subscribe to said call waiting service, then offering to activate said call waiting service for the duration of said Internet connection, and

performing said activating step if said subscriber elects to accept said service offer.

50. The method of claim 49 wherein said step of activating includes the step of sending a message to said first telephone station via said Internet connection to notify said subscriber that said activation has been executed.

51. A method of processing a three-way calling feature for a first telephone station set whose telephone line is connected to the Internet, comprising the steps of

responsive to receiving at a central office an initial call from said first telephone station, extending a connection from said first telephone station to said Internet,

receiving at said central office a voice call from a second telephone station directed to said first telephone station and, responsive to said first telephone station being connected to said Internet, sad central office sending a data message via said connection to said first telephone station to alert a subscriber to the receipt of the voice call from said second telephone station, and

said central office bridging a connection to said second telephone station to the connection between said Internet and said first telephone station so tat a caller at said second telephone station may communicate with said subscribe at said first telephone station, then

responsive to receiving at said central office a voice call from a third telephone station directed to said first telephone station while said first telephone station is connected to said second telephone station, said central office bridging connections to said second telephone station and said third telephone station to a three-way conference circuit, and said central office bridging said three-way conference circuit to the connection between said Internet and said first telephone station,

wherein said central office includes a switch and Internet access equipment for extending said connection from said first telephone station to said Internet and for alerting said subscriber at said first telephone station to receipt of said voice call from sad second telephone station via said connection to said Internet.

52. The method of claim 51 wherein said step of bridging connections comprises the steps of,

responsive to receiving said voice call from said third telephone station at said central office, sending a data message via said Internet con on to said first telephone station to alert a subscriber there at to the receipt of the voice call from said third telephone station, and

responsive to receiving from said first telephone station via said Internet connection a message containing a request to three-way answer said voice call, performing said step of bridging connections.

53. A method of processing a three-way calling feature for a first telephone station set whose telephone line is connected to the Internet, comprising the steps of

responsive to receiving at an enhanced telephone switching system of the public switched network an initial call from said first telephone station, extending a connection from said first telephone station to said Internet,

receiving at said enhanced telephone switching system a voice call from a second telephone station directed to said first telephone station and, responsive to said first telephone station being connected to said Interest, said enhanced telephone switching system sending a data message via said connection to said first telephone station to alert a subscriber to the receipt of the voice call from said second telephone station, said data message being sent without first having to forward or redirect said voice call via said public switched network, and

said enhanced telephone switching system bridging a connection to said second telephone station to the connection between said Internet and said first telephone station so that a caller at said second telephone station may communicate with said subscriber at said first telephone station, then

responsive to receiving at said enhanced telephone switching system a voice call from a third telephone station directed to said third telephone station while said first telephone station is connected to said second telephone station, said enhanced telephone switching system bridging connections to said second telephone station and said third telephone station to a three-way conference circuit, and said enhanced telephone switching system bridging said three-way conference circuit to the connection between said Internet and said first telephone station.

54. The method of claim 53 wherein said step of bridging connections comprises the steps of,

responsive to receiving said voice call from said third telephone station at said enhanced telephone switching system, sending a data message via said Internet connection to said first telephone station to alert a subscriber there at to the receipt of the voice call from said third telephone station, and

responsive to receiving from said first telephone station via said Internet connection a message containing a request to three-way answer said voice call performing said step of bridging connections.