US5719927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and a method for controlling a collect call
Assignee: Fujitsu Ltd
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Filing: 1995-11-08
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Granted: 1998-02-17
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Expires: 2015-11-08
Abstract
Abstract A collect call control device in a telephone exchange system in which a call signal for the collect call is sent from an international switching center through a central office exchange and a private branch exchange to a called subscriber, the private branch exchange has an attendant's switchboard connected and the attendant's switchboard has an attendant's telephone connected. The collect call control device detects whether the collect call request is indicated in a call signal which is input to the central office exchange from the international switching center and includes information on the collect call request and a called subscriber's telephone number; determines whether to control the collect call to the called subscriber based on the detection; generates an attendant's telephone number based on the determination; and connects the call signal to the attendant's telephone.
Inventors
- 👤 Kiyotoshi Hariu
- 👤 Yuichi Chiba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:24
CPC Classifications
H; H04; H04M; H04M15/00; H04M15/08; H04M2215/00; H04M2215/62
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
150 words
An apparatus for controlling a collect call in a telephone exchange system, a request for the collect call being sent from a first central-office exchange through a second central-office exchange and a private branch exchange to a called subscriber, the private branch exchange being connected to an attendant's telephone, said apparatus in the second central-office exchange comprising: request detection means for detecting that a collect call request is indicated in an interoffice signal, which is input to the second central-office exchange from the first central-office exchange and includes information on the collect call request and a called subscriber's telephone number; number generation means responsive to the detection by said request detection means for generating an attendant's telephone number; and connection means for connecting the request for the collect call to the attendant's telephone by sending to the private branch exchange the attendant's telephone number generated by said number generation means.
Claim 2
Independent Claim
150 words
An apparatus for controlling a collect call in a telephone exchange system, a request for the collect call being sent from a first central-office exchange through a second central-office exchange and a private branch exchange to a called subscriber, the private branch exchange being connected to an attendant's telephone, said apparatus in the second central-office exchange comprising: request detection means for detecting that a collect call request is indicated in an interoffice signal, which is input to the second central-office exchange from the first central-office exchange and includes information on the collect call request and a called subscriber's telephone number; number generation means responsive to the detection by said request detection means for generating an attendant's telephone number; and connection means for connecting the request for the collect call to the attendant's telephone by sending to the private branch exchange the attendant's telephone number generated by said number generation means.
Claim 3
Dependent Claim
55 words
An apparatus according to claim 1, wherein said apparatus further comprises control determination means for determining whether to control the collect call to the called subscriber based on the detection by said request detection means, and wherein said number generation means generates the attendant's telephone number based on the determination by said control determination means.
Claim 4
Dependent Claim
44 words
An apparatus according to claim 1, wherein said number generation means comprises first storage means for storing the attendant's telephone number corresponding to a subscriber's telephone number accommodated in the second central-office exchange and makes the generation by referring to said first storage means.
Claim 5
Dependent Claim
35 words
An apparatus according to claim 3, wherein said first storage means stores the attendant's telephone number corresponding to a trunk information specifying a telephone line connecting the second central-office exchange and the private branch exchange.
Claim 6
Dependent Claim
47 words
An apparatus according to claim 2, wherein said control determination means comprises second storage means for storing information whether to control a collect call corresponding to a subscriber's telephone number accommodated in the second central-office exchange and makes the determination by referring to said second storage means.
Claim 7
Dependent Claim
37 words
An apparatus according to claim 5, wherein said second storage means stores information whether to control a collect call corresponding to trunk information specifying a telephone line connecting the second central-office exchange and the private branch exchange.
Claim 8
Dependent Claim
38 words
An apparatus according to claim 3, wherein said first storage means stores a plurality of operator's telephone numbers, and wherein, when an attendant's telephone is busy, said call connection means connects the call signal to another attendant's telephone.
Claim 9
Dependent Claim
30 words
An apparatus according to claim 7, wherein said apparatus further comprises rejection means for sending a busy signal to the first central-office exchange when all the attendant's telephones are busy.
Claim 10
Independent Claim
141 words
A method for controlling a collect call in a telephone exchange system, a request for a collect call being sent from a first central-office exchange through a second central-office exchange and a private branch exchange to a called subscriber, the private branch exchange being connected to an attendant's telephone said method comprising the steps of: (a) detecting that a collect call request is indicated in an interoffice signal, which is input to the second central-office exchange from the first central-office exchange and includes information on the collect call request and a called subscriber's telephone number; (b) generating an attendant's telephone number in response to the detection by said request detection means; and (c) connecting the request for a collect call to the attendant's telephone by sending to the private branch exchange the attendants telephone number generated by said number generation means.
Claim 11
Independent Claim
141 words
A method for controlling a collect call in a telephone exchange system, a request for a collect call being sent from a first central-office exchange through a second central-office exchange and a private branch exchange to a called subscriber, the private branch exchange being connected to an attendant's telephone said method comprising the steps of: (a) detecting that a collect call request is indicated in an interoffice signal, which is input to the second central-office exchange from the first central-office exchange and includes information on the collect call request and a called subscriber's telephone number; (b) generating an attendant's telephone number in response to the detection by said request detection means; and (c) connecting the request for a collect call to the attendant's telephone by sending to the private branch exchange the attendants telephone number generated by said number generation means.
Claim 12
Dependent Claim
52 words
A method according to claim 9, wherein said method further comprises the step of (d) determining whether to control the collect call to the called subscriber based on said detecting in step (a), and wherein said generating in step (b) generates the attendant's telephone number based on said determining in step (d).
Claim 13
Dependent Claim
49 words
A method according to claim 9, wherein said generating in step (b) comprises the step of (e) storing the attendant's telephone number corresponding to a subscriber's telephone number accommodated in the second central-office exchange and makes said generating in step (b) by referring to said storing in step (e).
Claim 14
Dependent Claim
36 words
A method according to claim 11, wherein said storing in step (e) stores the attendant's telephone number corresponding to a trunk information specifying a telephone line connecting the second central-office exchange and the private branch exchange.
Claim 15
Dependent Claim
50 words
A method according to claim 10, wherein said determining in step in (d) comprises the step of (f) storing information whether to control a collect call corresponding to a subscriber's telephone number accommodated in the second central-office exchange and makes said determining by referring to said storing in step (f).
Claim 16
Dependent Claim
37 words
A method according to claim 13, wherein said storing in step (g) information whether to control a collect call corresponding to trunk information specifying a telephone line connecting the second central-office exchange and the private branch exchange.
Claim 17
Dependent Claim
40 words
A method according to claim 11, wherein said storing in step (e) stores a plurality of operator's telephone numbers, and wherein said connecting in step (c) connects the call signal to another attendant's telephone when an attendant's telephone is busy.
Claim 18
Dependent Claim
31 words
A method according to claim 15, wherein said method further comprises the step of (g) sending a busy signal to the first central-office exchange when all the attendant's telephones are busy.
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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) | 2001-02-16 | 2001-08-18 | 2002-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-16 | 2005-08-18 | 2006-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-16 | 2009-08-18 | 2010-02-17 | $7700.00 | Window Closed / Lapsed |