Patent US6567505B1 successfully refreshed from Google Patents.
US6567505B1
Expired / Lapsed
US
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Method and apparatus for camp-on service control
Assignee: Fujitsu Ltd
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Filing: 1998-11-06
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Granted: 2003-05-20
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Expires: 2018-11-06
Abstract
Abstract After a camp-on to a telephone B has been registered by a telephone A, when a callback is returned by detecting call termination of the telephone B, the callback can be temporarily released or the camp-on can be released by performing a release operation from a telephone D registered in the same group as the telephone A.
Inventors
- 👤 Wataru Omori
- 👤 Junichi Wagatsuma
- 👤 Mitsuhiro Sato
- 👤 Kyoko Tanaka
- 👤 Takahiro Shinagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:03
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/48; H04M2203/00; H04M2203/20; H04M2203/2044
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
65 words
A camp-on service control method comprising the steps of: monitoring a first telephone at predetermined intervals of time to check if the first telephone is busy or not; calling back a second telephone if the first telephone is not busy; and stopping the calling back step when a specific number is sent out from a third telephone while the second telephone is being called back.
Claim 2
Dependent Claim
65 words
A camp-on service control method comprising the steps of: monitoring a first telephone at predetermined intervals of time to check if the first telephone is busy or not; calling back a second telephone if the first telephone is not busy; and stopping the calling back step when a specific number is sent out from a third telephone while the second telephone is being called back.
Claim 3
Dependent Claim
55 words
A method according to claim 1 , wherein the second telephone and the third telephone belong to the same group, and wherein the method further comprises the step of identifying the second telephone being called back from among telephones belonging to the same group when the specific number is sent out from the third telephone.
Claim 4
Dependent Claim
30 words
A method according to claim 2 , further comprising the step of stopping the monitoring of the first telephone when the specific number is sent out from the third telephone.
Claim 5
Dependent Claim
31 words
A method according to claim 3 , further comprising the step of resuming the monitoring of the first telephone when a second specific number is sent out from the third telephone.
Claim 6
Dependent Claim
71 words
A camp-on service control apparatus comprising: means for monitoring a first telephone at predetermined intervals of time to check if the first telephone is busy or not; means for calling back a second telephone if the first telephone is not busy; and means for stopping a call back to the second telephone when a specific number is sent out from a third telephone while the second telephone is being called back.
Claim 7
Dependent Claim
71 words
A camp-on service control apparatus comprising: means for monitoring a first telephone at predetermined intervals of time to check if the first telephone is busy or not; means for calling back a second telephone if the first telephone is not busy; and means for stopping a call back to the second telephone when a specific number is sent out from a third telephone while the second telephone is being called back.
Claim 8
Dependent Claim
54 words
An apparatus according to claim 5 , wherein the second telephone and the third telephone belong to the same group, and wherein the apparatus further comprises means for identifying the second telephone being called back from among telephones belonging to the same group when the specific number is sent out from the third telephone.
Claim 9
Dependent Claim
29 words
An apparatus according to claim 6 , further comprising means for stopping the monitoring of the first telephone when the specific number is sent out from the third telephone.
Claim 10
Dependent Claim
30 words
An apparatus according to claim 7 , further comprising means for resuming the monitoring of the first telephone when a second specific number is sent out from the third telephone.
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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) | 2006-05-19 | 2006-11-18 | 2007-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-05-19 | 2010-11-18 | 2011-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-05-19 | 2014-11-18 | 2015-05-20 | $7700.00 | Window Closed / Lapsed |