Automatic callback system and method

• US 5,784,438 A
• Filed: 04/09/1997
• Issued: 07/21/1998
• Est. Priority Date: 12/22/1995
• Status: Expired due to Term

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Martinez, John C.
• Primary Examiner(s): Tsang, Fan S.
• Application Number:
  US08/831,656
• Time in Patent Office: 468 Days
• Field of Search: 379/67, 379/88, 379/89, 379/201, 379/207, 379/209, 379/216, 379/265, 379/210, 379/211, 379/212, 379/230
• US Class Current: 379/67.1
• CPC Class Codes: H04M 3/48 Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy
• CPC Class Codes: H04Q 2213/13103 Memory
• CPC Class Codes: H04Q 2213/13106 Microprocessor, CPU
• CPC Class Codes: H04Q 2213/13152 Callback
• CPC Class Codes: H04Q 2213/13173 Busy signals
• CPC Class Codes: H04Q 2213/13176 Common channel signaling, CCS7
• CPC Class Codes: H04Q 2213/13282 Call forward, follow-me, call diversion
• CPC Class Codes: H04Q 2213/13377 Recorded announcement
• CPC Class Codes: H04Q 2213/1338 Inter-exchange connection
• CPC Class Codes: H04Q 2213/13405 Dual frequency signaling, DTMF
• CPC Class Codes: H04Q 3/0016 Arrangements providing connection between exchanges

Abstract

A system and method are disclosed for providing an automatic call-back when a calling party number encounters a ring-no-answer condition upon calling a called party number. An exemplary system includes: (1) a switching network having switches for routing telephone calls; (2) a signaling network coupling switches in the switching network to one another for routing a calling party number and a called party number associated with a telephone call; and (3) a platform coupled to the switching network. The platform stores a calling party number and a called party number received from the switching network corresponding to a telephone call in which the calling party number encountered a ring-no-answer condition and requested an automatic call-back. A processor in the platform detects a subsequent telephone call involving the called party number and, at the conclusion of the subsequent telephone call, initiates the automatic call-back to the calling party number. Upon completing the automatic call-back to the calling party number, the platform transmits a pre-recorded announcement to the calling party number via the switching network indicating that the platform will attempt to complete a telephone call to the called party number in satisfaction of the calling party number'"'"'s outstanding automatic call-back request. Upon completing the telephone call to the called party number, the platform merges the telephone call to the calling party number with that to the called party number.

Claims

1. A system for providing an automatic call-back to a calling party who encounters a ring-no-answer condition upon calling a called party number, comprising:

a switching network having switches for routing telephone calls;

a signaling network coupling said switches in said switching network to one another for routing a calling party number and a called party number associated with a telephone call; and

a platform coupled to said switching network, said platform storing a calling party number and a called party number received from said switching network and corresponding to a telephone call in which said calling party encountered a ring-no-answer condition and requested an automatic call-back, and said platform having a processor adapted to provide said automatic call-back to said calling party number in response to detection of a signal indicating a subsequent telephone call involving said called party number.

2. The system of claim 1, whereupon completing said automatic call-back to said calling party, said platform transmits a pre-recorded announcement to said calling party via said switching network indicating that said platform will attempt to complete a telephone call to said called party number in satisfaction of an automatic call-back request of said calling party.

3. The system of claim 2, whereupon completing said telephone call to said called party number, said platform merges said telephone call to said calling party number with said telephone call to said called party number.

4. A system for providing an automatic call-back to a calling party who encounters a ring-no-answer condition upon calling a called party number, comprising:

a switching network having switches for routing telephone calls;

said switching network comprising a first originating switch node coupled to a first originating telephone call location corresponding to a calling party number and, a terminating switch node coupled to a destination telephone call location corresponding to a called party number;

a signaling network coupling switches in said switching network to one another for routing origination information and destination information associated with a telephone call; and

a platform coupled to said switching network, said platform storing said calling party number and said called party number received from said first originating switch node and corresponding to a telephone call in which said calling party encountered a ring-no-answer condition and requested an automatic call-back, and said platform having a processor adapted to provide said automatic call-back to said calling party number in response to detection of a signal indicating a subsequent telephone call involving said called party number.

5. The system of claim 4, wherein said processor receives origination information of subsequent telephone call attempts and successful telephone calls originated at said terminating switch node and, compares said origination information of said telephone call attempts and said successful telephone calls against said called party number to detect whether said called party has initiated a subsequent telephone call attempt or successful telephone call to a third-party number.

6. The system of claim 5, whereupon completing said automatic call-back to said calling party number, said platform transmits a pre-recorded announcement to said calling party via said switching network indicating that said platform will attempt to complete a telephone call to said called party number in satisfaction of an automatic call-back request of said calling party.

7. The system of claim 6, whereupon completing said telephone call to said called party number, said platform merges said telephone call to said calling party number with said telephone call to said called party number.

8. The system of claim 7, wherein said telephone calls are merged at said first originating switch node.

9. The system of claim 4, further comprising a second originating switch node, and wherein said processor receives destination information of subsequent successful telephone calls originated at said second originating switch node and compares said destination information of said successful telephone calls against said called party number to detect whether a third-party has initiated a subsequent successful telephone call to said called party number.

10. The system of claim 9, wherein said first originating switch node and said second originating switch node are the same originating switch node.

11. The system of claim 9, whereupon completing said automatic call-back to said calling party number, said platform transmits a pre-recorded announcement to said calling party via said switching network indicating that said platform will attempt to complete a telephone call to said called party number in satisfaction of an automatic call-back request of said calling party.

12. The system of claim 11, whereupon completing said telephone call to said called party number, said platform merges said telephone call to said calling party number with said telephone call to said called party number.

13. The system of claim 12, wherein said telephone calls are merged at said first originating switch node.

14. A method for providing an automatic call-back to a calling party who encountered a ring-no-answer condition upon calling a called party number to initiate a telephone call, comprising the steps of:

determining that a ring-no-answer condition exists based on a telephone call placed by a calling party to said called party number;

detecting a signal indicating a subsequent telephone call involving said called party number; and

providing an automatic call-back to said calling party number in response to detection of said signal.

15. The method of claim 14, wherein said detecting step comprises comparing origination information of subsequent telephone call attempts and successful telephone calls originated at a billing switch associated with said called party number against said called party number to determine whether said called party has initiated a subsequent telephone call attempt or successful telephone call to a third-party number.

16. The method of claim 15, further including the step of transmitting a pre-recorded announcement to said calling party indicating that an attempt will be made to complete a telephone call to said called party number in satisfaction of said calling party'"'"'s automatic call-back request.

17. The system of claim 16, further including the step of merging said telephone call to said calling party number with said telephone call to said called party number.

18. The method of claim 14, wherein said detecting step comprises comparing destination information of subsequent successful telephone calls originated at a billing switch associated with a third-party number against said called party number to determine whether a third-party has initiated a subsequent successful telephone call to said called party number.

19. The method of claim 18, further including the step of transmitting a pre-recorded announcement to said calling party indicating that an attempt will be made to complete a telephone call to said called party number in satisfaction of said calling party'"'"'s automatic call-back request.

20. The method of claim 19, further including the step of merging said telephone call to said calling party number with said telephone call to said called party number.

21. A system for providing an automatic call-back to a calling party who encounters a ring-no-answer condition upon calling a called party number, the system for use in a network of the type which includes a switching network having switches for routing telephone calls and a signaling network coupled to said switches in said switching network for routing a calling party number and a called party number associated with a telephone call, the system comprising:

a storage medium, coupled to said switching network, for storing a calling party number and a called party number received from said switching network and corresponding to a telephone call in which said calling party encountered a ring-no-answer condition and requested an automatic call-back; and

a processor, coupled to said storage medium, adapted to detect a signal indicating a subsequent telephone call involving said called party number and, to provide said automatic call-back to said calling party number in response to detection of said signal.