Telephonic communications – With usage measurement – Call traffic recording by computer or control processor
Reexamination Certificate
2000-02-28
2002-09-17
Kuntz, Curtis (Department: 2743)
Telephonic communications
With usage measurement
Call traffic recording by computer or control processor
C379S112050, C379S112010, C379S133000
Reexamination Certificate
active
06453028
ABSTRACT:
TECHNICAL FIELD
This invention relates to traffic management in telephone systems and more particularly to dynamic traffic management in an intelligent network (IN) of a telephone system.
BACKGROUND OF THE INVENTION
In presently operating systems, as in European Telecommunication Standardization Institute (ETSI)-INAP, or ITU (CS-IR and CS-2) Traffic Management is manually initiated when the service or network management center has detected a congestion situation or any other situation that requires manually initiated controls. In this situation the personnel at the Network Management Center would have to make a decision as to whether the number of failed calls over specific routes exceeded limits, before invoking the appropriate service logic at the SCP to send a Call Gap command and/or an ActivateServiceFiltering (ASF) command to filter calls over specific routes.
Alternatively, with the known ETSI-INAP operations, the SCP can make a decision for Automatic Call Congestion through indirect methods such as arming EDP-4R in every IN call and thereafter keeping a counter at the SCP's end in order to make the decision on the number of failed calls over a period of time before deciding to send a CallGap or ASF. The filtering criteria is done either based on the CalledAddressValue and/or Service Key when the triggering criteria is met, after the call hits any of the TDPs—TDP2, TDP3,TDP4 etc. With ITU CS-IR TDP4 can be armed in a Notification mode, which can then be used to monitor failed calls over a route. However these methods would unnecessarily increase the traffic over SS7 link between SSP and SCP.
Abbreviations used herein:
ASF—Activate Service Filtering
ASN-1—Abstract Syntax Notation Number One
A info—Analyze Information
A'd info—Analyzed Information
BCSM—Basic Call State Model
CS1—Capability Set 1
CS1—Capability Set 1
CS2—Capability Set 2
EDP—Event Detection Point
ERBCSM—Event Report BCSM
INAP—Intelligent Network Application Protocol
IN—Intelligent Network
ITU—International Telecommunication Union
RRBCSM—Request Report BCSM
RSF—Route Select Failure
SCP—Service Control Point
SS7—Signaling System #7
SSP—Service Switching Point
TC—Transaction Capabilities
TDP—Trigger Detection Point
SUMMARY OF THE INVENTION
Briefly stated, in accordance with one aspect of the invention, the foregoing problem of the art is overcome and an advance in the art is achieved by providing a method of traffic management using an intelligent network node, such as a Service Control Point, (SCP). This method provides a way by which an SCP can make an intelligent decision by monitoring the traffic over specified routes.
In accordance with another aspect of the invention, the aforementioned problems are overcome and an advance in the art is achieved by providing a method and apparatus for managing call traffic in a system having a service switching point (SSP) connected to a service control point (SCP) comprising the steps of: sending a traffic monitoring initiation request from the SCP to the SSP; monitoring call traffic at the SSP according to the traffic monitoring request; sending a response to the SCP including results of said monitoring; determining from said results if traffic management needs to be applied; and if traffic management needs to be applied, applying traffic management.
REFERENCES:
patent: 4979118 (1990-12-01), Kheradpi
patent: 5581610 (1996-12-01), Hooshiari
patent: 5778057 (1998-07-01), Atai
patent: 5898672 (1999-04-01), Ginzboorg
patent: 5930348 (1999-07-01), Regnier et al.
patent: 6018519 (2000-01-01), Ginzboorg
patent: 6205212 (2001-03-01), Swale
patent: 6259776 (2001-06-01), Hunt
patent: 5930348 (1999-07-01), None
patent: 6018519 (2000-01-01), None
Barnie Rexford N
Kuntz Curtis
Lucent Technologies - Inc.
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