US5761289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
800 number callback
Assignee: AT&T Inc
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Filing: 1996-08-13
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Granted: 1998-06-02
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Expires: 2016-08-13
Abstract
Abstract A method and system for handling incoming calls when no destination stations are available. When an incoming call from an originating station is received, it is determined whether a destination station is available. If a destination station is not available, a telephone number of the originating station is stored, Shortly before its current call is concluded, a destination station indicates its approaching availability. Responsive to this indication, an outgoing call is placed to the originating station. If the originating station does not answer the outgoing call within a predetermined time, the outgoing call is terminated and rescheduled. If the originating station answers the call within a predetermined time, the outgoing call is connected to the available destination station.
Inventors
- 👤 Srinivasan Keshav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:35
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/4228; H04M3/42306; H04M3/48; H04M3/50; H04M3/51; H04M3/523; H04Q; H04Q3/00; H04Q3/58; H04Q3/62; H04Q3/625; H04M2242/00; H04M2242/22; H04M3/42025; H04M3/42085; H04M3/42102; H04Q2213/00; H04Q2213/13072; H04Q2213/13091; H04Q2213/13103; H04Q2213/13106; H04Q2213/13152; H04Q2213/13173; H04Q2213/13213; H04Q2213/1322; H04Q2213/1337; H04Q2213/13376; H04Q3/72
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
73 words
A method for handling incoming calls when no destination stations are available, comprising the steps of: receiving an incoming call from an originating station; determining whether a destination station is available; storing a telephone number of the originating station, if a destination station is not available; receiving an indication of approaching availability from the destination station; and responsive to receiving the indication of approaching availability, placing an outgoing call to the originating station.
Claim 2
Independent Claim
73 words
A method for handling incoming calls when no destination stations are available, comprising the steps of: receiving an incoming call from an originating station; determining whether a destination station is available; storing a telephone number of the originating station, if a destination station is not available; receiving an indication of approaching availability from the destination station; and responsive to receiving the indication of approaching availability, placing an outgoing call to the originating station.
Claim 3
Dependent Claim
28 words
The method of claim 1, further comprising the step of: terminating the outgoing call, if the originating station does not answer the outgoing call within a predetermined time.
Claim 4
Dependent Claim
28 words
The method of claim 2, further comprising the step of: rescheduling the outgoing call, if the originating station does not answer the outgoing call within a predetermined time.
Claim 5
Dependent Claim
60 words
The method of claim 2, further comprising the steps of: rescheduling the outgoing call, if the originating station does not answer the outgoing call within a predetermined time; counting the number of times the outgoing call has been rescheduled; and deleting the telephone number of the originating station, if the outgoing call has been rescheduled a predetermined number of times.
Claim 6
Dependent Claim
31 words
The method of claim 1, further comprising the step of: connecting the outgoing call to the available destination station, if the originating station answers the outgoing call within a predetermined time.
Claim 7
Dependent Claim
32 words
The method of claim 1, further comprising the step of: deleting the telephone number of the originating station, if the time elapsed from receipt of the incoming call exceeds a predetermined maximum.
Claim 8
Dependent Claim
44 words
The method of claim 1, wherein the step of receiving an indication of approaching availability from the destination station comprises the step of: receiving from an operator of the destination station an indication that the destination station will become available within a predetermined time.
Claim 9
Independent Claim
111 words
A method for handling incoming calls when no destination stations are available, comprising the steps of: receiving a plurality of incoming calls from a plurality of originating stations; for each incoming call, repeating the steps of: determining whether a destination station is available; storing, at the foot of a first in, first out queue, an indicator including a telephone number of the originating station, if a destination station is not available; receiving an indication of approaching availability from the destination station: responsive to receiving an indication of approaching availability from the destination station, placing an outgoing call to an originating station indicated by an indicator at a head of the queue.
Claim 10
Independent Claim
111 words
A method for handling incoming calls when no destination stations are available, comprising the steps of: receiving a plurality of incoming calls from a plurality of originating stations; for each incoming call, repeating the steps of: determining whether a destination station is available; storing, at the foot of a first in, first out queue, an indicator including a telephone number of the originating station, if a destination station is not available; receiving an indication of approaching availability from the destination station: responsive to receiving an indication of approaching availability from the destination station, placing an outgoing call to an originating station indicated by an indicator at a head of the queue.
Claim 11
Dependent Claim
28 words
The method of claim 8, further comprising the step of: terminating the outgoing call, if the originating station does not answer the outgoing call within a predetermined time.
Claim 12
Dependent Claim
39 words
The method of claim 9, further comprising the step of: moving the indicator at the head of the queue to the foot of the queue, if the originating station does not answer the outgoing call within a predetermined time.
Claim 13
Dependent Claim
60 words
The method of claim 9, wherein the indicator further comprises a counter, further comprising the steps of: moving the indicator at the head of the queue to the foot of the queue, if the originating station does not answer the outgoing call within a predetermined time; incrementing the counter; and deleting the indicator, if the counter exceeds a predetermined maximum.
Claim 14
Dependent Claim
31 words
The method of claim 8, further comprising the step of: connecting the outgoing call to the available destination station, if the originating station answers the outgoing call within a predetermined time.
Claim 15
Dependent Claim
56 words
The method of claim 8, wherein the indicator further comprises a time at which the incoming call was received, further comprising the steps of: comparing the time at which the incoming call was received with a current time; and deleting the indicator, if the time elapsed from receipt of the incoming call exceeds a predetermined maximum.
Claim 16
Dependent Claim
44 words
The method of claim 8, wherein the step of receiving an indication of approaching availability from the destination station comprises the step of: receiving from an operator of the destination station an indication that the destination station will become available within a predetermined time.
Claim 17
Independent Claim
130 words
A system for handling incoming calls when no destination stations are available, comprising: a first receiver, coupled to a public switched telephone network, receiving an incoming call from an originating station and outputting an indication that an incoming call has been received and a telephone number of the originating station of the incoming call; a detector, coupled to a plurality of destination stations, determining and outputting an indication of whether a destination station is available; a memory, responsive to the indication that a destination station is not available, storing a telephone number of the originating station; a second receiver, receiving an indication of approaching availability from the destination station; and a call originator, responsive to receipt of the indication of approaching availability, placing an outgoing call to the originating station.
Claim 18
Independent Claim
130 words
A system for handling incoming calls when no destination stations are available, comprising: a first receiver, coupled to a public switched telephone network, receiving an incoming call from an originating station and outputting an indication that an incoming call has been received and a telephone number of the originating station of the incoming call; a detector, coupled to a plurality of destination stations, determining and outputting an indication of whether a destination station is available; a memory, responsive to the indication that a destination station is not available, storing a telephone number of the originating station; a second receiver, receiving an indication of approaching availability from the destination station; and a call originator, responsive to receipt of the indication of approaching availability, placing an outgoing call to the originating station.
Claim 19
Dependent Claim
28 words
The system of claim 15, wherein the call originator further terminates the outgoing call, if the originating station does not answer the outgoing call within a predetermined time.
Claim 20
Dependent Claim
27 words
The system of claim 15, further comprising: a rescheduler, rescheduling the outgoing call, if the originating station does not answer the outgoing call within a predetermined time.
Claim 21
Dependent Claim
31 words
The system of claim 15, further comprising: a call connector, connecting the outgoing call to the available destination station, if the originating station answers the outgoing call within a predetermined time.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-06-01 | 2001-12-01 | 2002-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-01 | 2005-12-01 | 2006-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-01 | 2009-12-01 | 2010-06-02 | $7700.00 | Window Closed / Lapsed |