US6563797B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
IP voice call surveillance through use of non-dedicated IP phone with signal alert provided to indicate content of incoming call prior to an answer as being a monitored call
Assignee: AT&T Inc
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Filing: 1999-08-18
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Granted: 2003-05-13
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Expires: 2019-08-18
Abstract
Abstract Surveillance of IP telephony may be performed through the use of conventional telephone equipment, according to principles of the invention while preventing giving indication to the monitored phone by alerting the user of the monitoring phone to such surveillance use prior to pick up by an agent for engagement of the monitoring phone in response to the alert. Such alerts may assume many forms such as ringing, visual indicators, data readouts, activating ancillary equipment, various flags, etc. This alert prior to surveillance is distinct from alerts used for normal non-surveillance calls, which the monitoring phone is capable of receiving.
Inventors
- 👤 Fen-Chung Kung
- 👤 Jesse Eugene Russell
- 👤 Anish Sankalia
- 👤 Spencer C. Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:54
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/22; H04M3/2281; H04M7/00; H04M7/006
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
133 words
In an IP voice call surveillance system using non-dedicated monitoring stations a method of indicating monitoring purpose prior to an answer to an incoming call, comprising the steps of: collecting information concerning call initiations with respect to a telephone device contained within an IP network through the use of an IP Address Mapping Check Point (IP-AMCP); identifying the call initiations associated with a target IP telephone to be monitored by means of Watchdog activity by determining if a called DN is on a surveillance list; determining the address of a monitoring IP telephone through the IP-AMCP and sending a distinct alert to a gateway connected to the monitoring IP telephone; and signaling the distant alert to a user of the monitoring IP telephone to indicate that a surveillance call is being set up.
Claim 2
Dependent Claim
133 words
In an IP voice call surveillance system using non-dedicated monitoring stations a method of indicating monitoring purpose prior to an answer to an incoming call, comprising the steps of: collecting information concerning call initiations with respect to a telephone device contained within an IP network through the use of an IP Address Mapping Check Point (IP-AMCP); identifying the call initiations associated with a target IP telephone to be monitored by means of Watchdog activity by determining if a called DN is on a surveillance list; determining the address of a monitoring IP telephone through the IP-AMCP and sending a distinct alert to a gateway connected to the monitoring IP telephone; and signaling the distant alert to a user of the monitoring IP telephone to indicate that a surveillance call is being set up.
Claim 3
Dependent Claim
30 words
The method of claim 1 wherein the step of sending a distinct alert, comprises a step of: sending a distinctive ringing signal to alert a user of the monitoring station.
Claim 4
Dependent Claim
29 words
The method of claim 1 wherein the step of sending a distinct alert, comprises a step of: providing an audio signal to alert a user of the monitoring station.
Claim 5
Dependent Claim
32 words
The method of claim 1 , including a step of: surveying all DNs called through the use of a WatchDog program with the IP-AMCP and having a database of DNs being monitored.
Claim 6
Dependent Claim
28 words
The method of claim 1 , including a step of: processing all activity of the monitoring IP telephone through a broadband gateway coupling it to an IP network.
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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) | 2006-05-12 | 2006-11-11 | 2007-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-05-12 | 2010-11-11 | 2011-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-05-12 | 2014-11-11 | 2015-05-13 | $7700.00 | Window Closed / Lapsed |