CA2209238A1 - Method and apparatus for monitoring selected telecommunications sessions in an intelligent switched telephone network - Google Patents

Method and apparatus for monitoring selected telecommunications sessions in an intelligent switched telephone network

Info

Publication number
CA2209238A1
CA2209238A1 CA2209238A CA2209238A CA2209238A1 CA 2209238 A1 CA2209238 A1 CA 2209238A1 CA 2209238 A CA2209238 A CA 2209238A CA 2209238 A CA2209238 A CA 2209238A CA 2209238 A1 CA2209238 A1 CA 2209238A1
Authority
CA
Canada
Prior art keywords
monitored
monitoring
network
trunk groups
calls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2209238A
Other languages
French (fr)
Other versions
CA2209238C (en
Inventor
William G. O'brien
Thomas C. Charlton
L. Lloyd Williams
Robert S. Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bell Canada Inc
Original Assignee
Bell Canada Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bell Canada Inc filed Critical Bell Canada Inc
Priority to CA002209238A priority Critical patent/CA2209238C/en
Priority to US08/886,471 priority patent/US5881132A/en
Priority to PCT/CA1998/000616 priority patent/WO1999000996A1/en
Priority to AU80968/98A priority patent/AU8096898A/en
Publication of CA2209238A1 publication Critical patent/CA2209238A1/en
Application granted granted Critical
Publication of CA2209238C publication Critical patent/CA2209238C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/64—Distributing or queueing
    • H04Q3/66—Traffic distributors
    • H04Q3/665—Circuit arrangements therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2254—Arrangements for supervision, monitoring or testing in networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2281—Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0029—Provisions for intelligent networking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13097—Numbering, addressing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13102—Common translator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13103—Memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13106—Microprocessor, CPU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1313—Metering, billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13141—Hunting for free outlet, circuit or channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13176—Common channel signaling, CCS7
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13204—Protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13209—ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13345—Intelligent networks, SCP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13353—Routing table, map memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13372—Intercepting operator

Abstract

A method, system and apparatus for the transparent monitoring of selected telecommunications sessions in an intelligent switched telephone network is described. The method involves conditioning the network to enable the monitoring of all telecommunications sessions originating from or terminating to any selected subscriber address. The network is conditioned by the installation of monitored trunks with translation tables, linksets and routesets which route all calls to be monitored through the monitored trunk groups. After the network has been conditioned, call monitoring can be accomplished with minimal datafill changes to the translation tables of the telephone switching system that serves the subscriber address. The monitored trunk groups are preferably loop-back trunk groups, but they may be dedicated inter-office trunk groups as well. It is also possible to designate a central switching point to monitor calls for a plurality of satellite switching points. The advantage is a flexible, cost-effective call monitoring system that produces no echo, ping or noise on the monitored line. The calls are completed without perceptible delay and there is no known method or equipment for detecting the monitoring equipment from either end of the call connection.
CA002209238A 1997-06-27 1997-06-27 Method and apparatus for monitoring selected telecommunications sessions in an intelligent switched telephone network Expired - Lifetime CA2209238C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002209238A CA2209238C (en) 1997-06-27 1997-06-27 Method and apparatus for monitoring selected telecommunications sessions in an intelligent switched telephone network
US08/886,471 US5881132A (en) 1997-06-27 1997-07-01 Method and apparatus for monitoring selected telecommunications sessions in an intelligent switched telephone network
PCT/CA1998/000616 WO1999000996A1 (en) 1997-06-27 1998-06-26 Method and apparatus for monitoring selected telecommunications sessions in an intelligent switched telephone network
AU80968/98A AU8096898A (en) 1997-06-27 1998-06-26 Method and apparatus for monitoring selected telecommunications sessions in an intelligent switched telephone network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002209238A CA2209238C (en) 1997-06-27 1997-06-27 Method and apparatus for monitoring selected telecommunications sessions in an intelligent switched telephone network
US08/886,471 US5881132A (en) 1997-06-27 1997-07-01 Method and apparatus for monitoring selected telecommunications sessions in an intelligent switched telephone network

Publications (2)

Publication Number Publication Date
CA2209238A1 true CA2209238A1 (en) 1998-12-27
CA2209238C CA2209238C (en) 2000-07-25

Family

ID=25679454

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002209238A Expired - Lifetime CA2209238C (en) 1997-06-27 1997-06-27 Method and apparatus for monitoring selected telecommunications sessions in an intelligent switched telephone network

Country Status (4)

Country Link
US (1) US5881132A (en)
AU (1) AU8096898A (en)
CA (1) CA2209238C (en)
WO (1) WO1999000996A1 (en)

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Also Published As

Publication number Publication date
AU8096898A (en) 1999-01-19
WO1999000996A1 (en) 1999-01-07
US5881132A (en) 1999-03-09
CA2209238C (en) 2000-07-25
WO1999000996A9 (en) 1999-05-14

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Effective date: 20170627