US3624307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Call transfer system
Assignee: AT&T Inc
•
Filing: 1970-01-13
•
Granted: 1971-11-30
•
Expires: 1990-01-13
Abstract
Abstract A telephone system is disclosed having a plurality of operator assistance positions together with facilities for transferring calls in a hold state between positions. These facilities are effective to transfer both the speech circuitry for the call as well as a lamp display of call status information to the new position.
Inventors
- 👤 Michael Frank Sikorsky
- 👤 Herman Ewald Voigt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:55
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/60; H04Q; H04Q3/00; H04Q3/42; H04Q3/54; H04Q3/545
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
97 words
In a teLephone switching system, a plurality of operator positions, means responsive to the receipt of a call by said system for extending said call to any one of said positions, register means effective during the serving of said call for registering call information including the identity of said one position to which said call is extended, means for entering into said register means information identifying a second position to which the call is to be transferred, and means for transferring said call from said one position to said second position under control of said registered information.
Claim 2
Dependent Claim
97 words
In a teLephone switching system, a plurality of operator positions, means responsive to the receipt of a call by said system for extending said call to any one of said positions, register means effective during the serving of said call for registering call information including the identity of said one position to which said call is extended, means for entering into said register means information identifying a second position to which the call is to be transferred, and means for transferring said call from said one position to said second position under control of said registered information.
Claim 3
Dependent Claim
41 words
The system of claim 1 in combination with means for determining the current operable state of said second position, and means for preventing said transfer in response to a determination that said second position is currently not in an operable state.
Claim 4
Dependent Claim
49 words
The system of claim 1 in combination with means for determining the availability of idle call serving facilities at said second position, and means for preventing said transfer in response to a determination that said second position does not currently have the idle facilities required to serve said call.
Claim 5
Dependent Claim
131 words
In a telephone switching system, a plurality of operator positions, a plurality of trunk circuits, means responsive to the receipt of a call by one of said trunk circuits for extending said call to any one of said positions, a register individual to each of said trunk circuits with each register being effective during the serving of a call by its trunk circuit for registering call information including the identity of the position to which the call received by its trunk circuit is extended, means for entering into the register for said one trunk circuit the identity of a second position to which said call is to be transferred, and means for transferring said call from said one position to said second position under control of the information in said register.
Claim 6
Dependent Claim
131 words
In a telephone switching system, a plurality of operator positions, a plurality of trunk circuits, means responsive to the receipt of a call by one of said trunk circuits for extending said call to any one of said positions, a register individual to each of said trunk circuits with each register being effective during the serving of a call by its trunk circuit for registering call information including the identity of the position to which the call received by its trunk circuit is extended, means for entering into the register for said one trunk circuit the identity of a second position to which said call is to be transferred, and means for transferring said call from said one position to said second position under control of the information in said register.
Claim 7
Dependent Claim
41 words
The system of claim 4 in combination with means for determining the current operable state of said second position, and means for preventing said transfer in response to a determination that said second position is currently not in an operable state.
Claim 8
Dependent Claim
49 words
The system of claim 5 in combination with means for determining the availability of idle call serving facilities at said second position, and means for preventing said transfer in response to a determination that said second position does not currently have the idle facilities required to serve said call.
Claim 9
Dependent Claim
236 words
In a telephone switching system, a plurality of operator positions, a plurality of trunk circuits, means responsive to the receipt of a call by one of said trunk circuits for extending said call to any one of said positions, a plurality of trunk registers each of which is individual to a different one of said trunk circuits, a plurality of position registers each of which is individual to a different one of said operator positions, means effective during the serving of each call for entering information into the trunk register of the trunk circuit receiving the call with said information including the identity of the position to which the call is extended, means effective during the serving of said call for entering call status information into the position register for said one position to which said call is extended, means for requesting the transfer of said call from said one position to a second one of said positions, means responsive to said request for entering into the trunk register of said one trunk circuit the identity of said second position to which said call is to be transferred, means further responsive to said request for transferring the contents of the position register for said one position to the position register of said second position to which said call is transferred, and means for effecting said transfer under control of the current information in said trunk register.
Claim 10
Dependent Claim
236 words
In a telephone switching system, a plurality of operator positions, a plurality of trunk circuits, means responsive to the receipt of a call by one of said trunk circuits for extending said call to any one of said positions, a plurality of trunk registers each of which is individual to a different one of said trunk circuits, a plurality of position registers each of which is individual to a different one of said operator positions, means effective during the serving of each call for entering information into the trunk register of the trunk circuit receiving the call with said information including the identity of the position to which the call is extended, means effective during the serving of said call for entering call status information into the position register for said one position to which said call is extended, means for requesting the transfer of said call from said one position to a second one of said positions, means responsive to said request for entering into the trunk register of said one trunk circuit the identity of said second position to which said call is to be transferred, means further responsive to said request for transferring the contents of the position register for said one position to the position register of said second position to which said call is transferred, and means for effecting said transfer under control of the current information in said trunk register.
Claim 11
Dependent Claim
41 words
The system of claim 7 in combination with means for determining the current operable state of said second positiOn, and means for preventing said transfer in response to a determination that said second position is currently not in an operable state.
Claim 12
Dependent Claim
49 words
The system of claim 8 in combination with means for determining the availability of idle call serving facilities at said second position, and means for preventing said transfer in response to a determination that said second position does not currently have the idle facilities required to serve said call.
Claim 13
Dependent Claim
58 words
The system of claim 7 in combination with display facilities at each of said positions, means controlled by said registered information for effecting the display of call information at said one position prior to said transfer, and means controlled by said registered information for effecting the display of call information at said second position subsequent to said transfer.
Claim 14
Dependent Claim
163 words
In a telephone switching system, a plurality of operator positions, a plurality of trunk circuits, means responsive to the receipt of a call by one of said trunk circuits for extending a call connection from said one trunk circuit to any one of said positions, a register individual to each of said trunk circuits with each register being effective during the serving of a call by its trunk circuit for registering call information including the identity of the position to which a call received by its trunk circuit is extended over a call connection, means for subsequently releasing said call connection from said one position upon the placing of said call on a hold state, means for entering into the register of said one trunk circuit the identity of a second position to which said call is to be transferred, and means for establishing a call connection from said one trunk circuit to said second position under control of said currently registered information.
Claim 15
Dependent Claim
163 words
In a telephone switching system, a plurality of operator positions, a plurality of trunk circuits, means responsive to the receipt of a call by one of said trunk circuits for extending a call connection from said one trunk circuit to any one of said positions, a register individual to each of said trunk circuits with each register being effective during the serving of a call by its trunk circuit for registering call information including the identity of the position to which a call received by its trunk circuit is extended over a call connection, means for subsequently releasing said call connection from said one position upon the placing of said call on a hold state, means for entering into the register of said one trunk circuit the identity of a second position to which said call is to be transferred, and means for establishing a call connection from said one trunk circuit to said second position under control of said currently registered information.
Claim 16
Dependent Claim
353 words
In a telephone switching system, a plurality of operator positions, a plurality of trunk circuits, means responsive to the receipt of a call by one of said trunk circuits for extending a call connection from said one trunk circuit to any one of said positions, a plurality of trunk registers each of which is individual to one of said trunk circuits, a plurality of position registers each of which is individual to one of said operator positions, means effective during the serving of each call for entering information into the trunk register of the trunk circuit receiving the call with said information including the identity of the position to which the call is extended, means effective during the subsequent serving of said call for entering call status information into the position register for said one position to which said call is extended, means for subsequently releasing said call connection from said one position upon the placing of said call on a hold state, means effective under control of said information in the register of said one position for displaying call status information at said position subsequent to the release of said connection, means at a second one of said position for requesting the transfer of the display of said call status information to said second position, means responsive to said transfer request for entering into the trunk register for said one trunk circuit the identity of said second position to which said call display is to be transferred, means for transferring said display in response to said request from said first position to said second position under control of the information in said trunk register, means responsive to said transfer request for transferring the contents of the position register for said one position to the position register of said second position, means operable under the control of said information in said second position register for displaying the status of said call at said second position, and means subsequently effective under control of said information currently in said trunk register for establishing a call connection from said one trunk circuit to said second position.
Claim 17
Dependent Claim
353 words
In a telephone switching system, a plurality of operator positions, a plurality of trunk circuits, means responsive to the receipt of a call by one of said trunk circuits for extending a call connection from said one trunk circuit to any one of said positions, a plurality of trunk registers each of which is individual to one of said trunk circuits, a plurality of position registers each of which is individual to one of said operator positions, means effective during the serving of each call for entering information into the trunk register of the trunk circuit receiving the call with said information including the identity of the position to which the call is extended, means effective during the subsequent serving of said call for entering call status information into the position register for said one position to which said call is extended, means for subsequently releasing said call connection from said one position upon the placing of said call on a hold state, means effective under control of said information in the register of said one position for displaying call status information at said position subsequent to the release of said connection, means at a second one of said position for requesting the transfer of the display of said call status information to said second position, means responsive to said transfer request for entering into the trunk register for said one trunk circuit the identity of said second position to which said call display is to be transferred, means for transferring said display in response to said request from said first position to said second position under control of the information in said trunk register, means responsive to said transfer request for transferring the contents of the position register for said one position to the position register of said second position, means operable under the control of said information in said second position register for displaying the status of said call at said second position, and means subsequently effective under control of said information currently in said trunk register for establishing a call connection from said one trunk circuit to said second position.
Claim 18
Independent Claim
79 words
A method of operating a telephone system comprisIng: (1) extending a call received by said system to any one of a plurality of operator positions, (2) registering information for said call including the identity of the position to which said call is extended, (3) registering the identity of a second one of said positions to which the call is transferred, and (4) transferring said call from said one position to said second position under control of said registered information.
Claim 19
Independent Claim
79 words
A method of operating a telephone system comprisIng: (1) extending a call received by said system to any one of a plurality of operator positions, (2) registering information for said call including the identity of the position to which said call is extended, (3) registering the identity of a second one of said positions to which the call is transferred, and (4) transferring said call from said one position to said second position under control of said registered information.
Claim 20
Dependent Claim
38 words
The method of claim 13 in combination with the additional steps of (1) determining the current operational state of said second position; and (2) preventing said transfer if said second position is not currently in an operable state.
Claim 21
Dependent Claim
46 words
The method of claim 13 in combination with the additional steps of (1) determining the availability of idle call serving facilities at said second position, and (2) preventing said transfer if said second position does not currently have the idle facilities required to serve said call.
Claim 22
Independent Claim
105 words
A method of operating a telephone system comprising: (1) detecting the receipt of a call by any one of a plurality of trunk circuits, (2) extending said call to any one of a plurality of operator positions, (3) registering in a register individual to said one trunk circuit call information including the identity of said one position to which said call is extended, (4) entering into the register for said one trunk circuit the identity of a second position to which the call is to be transferred, and (5) transferring said call from said one to said second position under control of said registered information.
Claim 23
Independent Claim
105 words
A method of operating a telephone system comprising: (1) detecting the receipt of a call by any one of a plurality of trunk circuits, (2) extending said call to any one of a plurality of operator positions, (3) registering in a register individual to said one trunk circuit call information including the identity of said one position to which said call is extended, (4) entering into the register for said one trunk circuit the identity of a second position to which the call is to be transferred, and (5) transferring said call from said one to said second position under control of said registered information.
Claim 24
Dependent Claim
38 words
The method of claim 16 in combination with the additional steps of (1) determining the current operational state of said second position; and (2) preventing said transfer if said second position is not currently in an operable state.
Claim 25
Dependent Claim
45 words
The method of claim 16 in combination with the additional steps of (1determining the availability of idle call serving facilities at said second position, and (2) preventing said transfer if said second position does not currently have the idle facilities required to serve said call.
Claim 26
Dependent Claim
48 words
The method of claim 16 in combination with the additional steps of (1displaying call information at said one position under control of said registered information prior to said transfer, and (2) displaying call information at said second position under control of said registered information subsequent to said transfer.
Claim 27
Independent Claim
141 words
A method of operating a telephone system comprising: (1) extending a call received by any one of a plurality of trunk circuits to any one of a plurality of operator positions, (2) entering into a trunk register individual to said one trunk circuit information including the identity of said one position to which said call is extended, (3) entering call status information into a position register for said one position to which said call is extended, (4) requesting the transfer of said call from said one position to a second one of said position, (5) entering into said trunk register the identity of said second position, (6) transferring the contents of the position register of said one position to a position register of said second position, and (7) transferring the call to said second position under control of the registered information.
Claim 28
Independent Claim
141 words
A method of operating a telephone system comprising: (1) extending a call received by any one of a plurality of trunk circuits to any one of a plurality of operator positions, (2) entering into a trunk register individual to said one trunk circuit information including the identity of said one position to which said call is extended, (3) entering call status information into a position register for said one position to which said call is extended, (4) requesting the transfer of said call from said one position to a second one of said position, (5) entering into said trunk register the identity of said second position, (6) transferring the contents of the position register of said one position to a position register of said second position, and (7) transferring the call to said second position under control of the registered information.
Claim 29
Dependent Claim
38 words
The method of claim 20 in combination with the additional steps of (1) determining the current operational state of said second position, and (2) preventing said transfer if said second position is not currently in an operable state.
Claim 30
Dependent Claim
47 words
The method of claim 20 in combination with the additional steps of (1) determining the availability of idle call serving facilities at said second position, and (2) call serving said transfer if said second position does not currently have the idle facilities required to serve said call.
Claim 31
Dependent Claim
49 words
The method of claIm 20 in combination with the additional steps of (1) displaying call information at said one position under control of said registered information prior to said transfer, and (2) displaying call information at said second position under control of said registered information subsequent to said transfer.
Claim 32
Independent Claim
123 words
The method of operating a telephone system comprising: (1) detecting the receipt of a call by any one of a plurality of trunk circuits, (2extending a call connection from said one trunk circuit to any one of a plurality of operator positions, (3) entering into a register individual to said one trunk circuit call information including the identity of said one operator position to which the connection is extended, (4) releasing said call connection while placing said call on a hold state, (5) entering into said register for said one trunk circuit the identity of a second one of said positions, and (6) subsequently establishing a call connection from said one trunk circuit to said second positions under control of said registered information.
Claim 33
Independent Claim
123 words
The method of operating a telephone system comprising: (1) detecting the receipt of a call by any one of a plurality of trunk circuits, (2extending a call connection from said one trunk circuit to any one of a plurality of operator positions, (3) entering into a register individual to said one trunk circuit call information including the identity of said one operator position to which the connection is extended, (4) releasing said call connection while placing said call on a hold state, (5) entering into said register for said one trunk circuit the identity of a second one of said positions, and (6) subsequently establishing a call connection from said one trunk circuit to said second positions under control of said registered information.
Claim 34
Dependent Claim
37 words
The method of claim 24 in combination with the additional steps of (1determining the current operational state of said second position; and (2) preventing said transfer if said second position is not currently in an operable state.
Claim 35
Dependent Claim
46 words
The method of claim 24 in combination with the additional steps of (1) determining the availability of idle call serving facilities at said second position, and (2) preventing said transfer if said second position does not currently have the idle facilities required to serve said call.
Claim 36
Dependent Claim
69 words
The method of claim 24 in combination with the additional steps of (1) displaying call information at said first position under control of said registered information prior to the entry of the identity of the second position into said register, and (2) displaying call information at said second position under control of said registered information subsequent to the entry of the identity of the second position into said register.
Claim 37
Independent Claim
270 words
The method of operating a telephone system comprising: (1) receiving a call on any one of a plurality of trunk circuits, (2) extending a call connection from said one trunk circuit to any one of a plurality of operator positions, (3) entering information during the serving of said call into a trunk register for said one trunk circuit with said information including the identity of said one position to which said call is extended, (4) entering call status information into a position register individual to said one position to which said call is extended, (5) subsequently releasing said call connection while placing said call on a hold state, (6) displaying the status of said call at said one position under the control of the information in said position register, (7) receiving from a second operator position a request for the transfer of the supervision of said call to said second position, (8) entering into said trunk register the identity of said second position to which said call supervision is to be transferred, (9) transferring the supervision of said call in response to said request from said one position to said second position under control of the information in said trunk register, (10) transferring the contents of the said position register for said one position to a position register for the said second position, (11) displaying the status of said call at said second position under the control of said information in said last-named position register, and (12) subsequently establishing a call connection from said one trunk circuit to said second position under control of said information in said trunk register.
Claim 38
Independent Claim
270 words
The method of operating a telephone system comprising: (1) receiving a call on any one of a plurality of trunk circuits, (2) extending a call connection from said one trunk circuit to any one of a plurality of operator positions, (3) entering information during the serving of said call into a trunk register for said one trunk circuit with said information including the identity of said one position to which said call is extended, (4) entering call status information into a position register individual to said one position to which said call is extended, (5) subsequently releasing said call connection while placing said call on a hold state, (6) displaying the status of said call at said one position under the control of the information in said position register, (7) receiving from a second operator position a request for the transfer of the supervision of said call to said second position, (8) entering into said trunk register the identity of said second position to which said call supervision is to be transferred, (9) transferring the supervision of said call in response to said request from said one position to said second position under control of the information in said trunk register, (10) transferring the contents of the said position register for said one position to a position register for the said second position, (11) displaying the status of said call at said second position under the control of said information in said last-named position register, and (12) subsequently establishing a call connection from said one trunk circuit to said second position under control of said information in said trunk register.
Claim 39
Dependent Claim
46 words
The method of claim 28 in combination with the additional steps of (1) determining the availability of idle call serving facilities at said second position, and (2) preventing said transfeR if said second position does not currently have the idle facilities required to serve said call.
Claim 40
Dependent Claim
37 words
The method of claim 28 in combination with the additional steps of (1) determining the current operational state of said second position; and (2preventing said transfer if said second position is not currently in an operable state.
Claim 41
Independent Claim
281 words
A method of operating a telephone system having a plurality of trunk circuits in which a received call may be extended from a calling one of said trunk circuits to any one of a plurality of operator positions, actively served at the position to which it is extended, and then placed on hold and disconnected from said position, said method comprising the steps of (1) entering into a trunk register individual said calling trunk circuit information including the identity of said one operator position that initially serves said call, (2) entering supervisory information for said call while in a hold state into a register individual to said position that initially serves said call, (3) displaying supervisory information for said held call at said position that initially serves said call under the control of information in the register individual to said position, (4) extending additional calls one at a time to said position while it is currently displaying supervisory information for said held call, (5) subsequently placing each such additional call in a hold state while displaying its supervisory information at said position, (6) requesting that the supervision of all held calls at said position be transferred to a second position, (7entering the identity of said second position into the trunk register of each held call whose supervision is to be transferred, (8) transferring supervisory call information from the register of said one position to a register of said second position, (9) displaying the supervisory status of the transferred calls at said second position under control of the information transferred to its register, and (10) entering newly received supervisory information for the transferred held calls into the register of said second position.
Claim 42
Independent Claim
281 words
A method of operating a telephone system having a plurality of trunk circuits in which a received call may be extended from a calling one of said trunk circuits to any one of a plurality of operator positions, actively served at the position to which it is extended, and then placed on hold and disconnected from said position, said method comprising the steps of (1) entering into a trunk register individual said calling trunk circuit information including the identity of said one operator position that initially serves said call, (2) entering supervisory information for said call while in a hold state into a register individual to said position that initially serves said call, (3) displaying supervisory information for said held call at said position that initially serves said call under the control of information in the register individual to said position, (4) extending additional calls one at a time to said position while it is currently displaying supervisory information for said held call, (5) subsequently placing each such additional call in a hold state while displaying its supervisory information at said position, (6) requesting that the supervision of all held calls at said position be transferred to a second position, (7entering the identity of said second position into the trunk register of each held call whose supervision is to be transferred, (8) transferring supervisory call information from the register of said one position to a register of said second position, (9) displaying the supervisory status of the transferred calls at said second position under control of the information transferred to its register, and (10) entering newly received supervisory information for the transferred held calls into the register of said second position.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |