Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal
Reexamination Certificate
1998-02-06
2001-10-16
Tran, Sinh (Department: 2643)
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Testing of subscriber loop or terminal
C379S114010, C379S114080, C379S112050
Reexamination Certificate
active
06304635
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a call control management system and, more particularly, to a call control management system for controlling calls and managing (totalizing/outputting) accounting information and traffic information.
2. Description of the Related Art
A switching system is normally provided with a function of calculating a call charge for a call initiated by an extension terminal, and totalizing and outputting call charges on a variety of units such as an extension unit, a station unit and so on. This function is hereinafter termed an accounting information totalizing function. Further, the switching system is also provided with a function of obtaining and outputting activity ratios of respective extension terminals and respective trunks. This function is termed hereinafter a traffic information totalizing function.
In the prior art switching system, a call control system is constructed to incorporate the accounting information totalizing function and the traffic information totalizing function. Therefore, when each totalizing function is executed, it might happen that a call control performance of the call control system is to deteriorate. Moreover, the accounting information function and the traffic totalizing function serve for managing the totalized data independently, and hence memory resources are consumed with a futility in the prior art system.
Further, over the recent years, it has been practiced that computers are connected to a telephone switching network, which is called a CTI (Computer-Telephone Integration). On the occasion of connecting the computer to the telephone switching network, a call control application is added. As in the prior art, however, the call control system is provided with the accounting information totalizing function and the traffic information totalizing function, this requires a change in each totalizing function every time the call control application is added.
Under such circumstances, it is a first object of the present invention to provide a call control management system capable of preventing a deterioration in performance relative to call control even when utilizing a totalizing function.
It is a second object of the present invention to provide a call control management system capable of effectively utilizing memory resources.
It is a third object of the present invention to provide a call control management system capable of easily adding a call control application.
SUMMARY OF THE INVENTION
To accomplish the above objects, according to the present invention, a call control management system for performing communications via a telephone line network, comprises a call control unit, having a call status information log file for storing a call status record showing a certain call status at a certain time, for implementing call control and outputting, every time the call status transition is made, the call status record showing a status after the call transition to said call status information log file, and a call information management unit for extracting the call status record relative to the same call from the call status information log file, creating a call information record containing at least data convertible into a call charge on the basis of the extracted record, and storing the created call information record in the form of a file.
Thus, in the call control management system according to the present invention, the call control unit, in addition to the call control, executes only a process of outputting the call status record to the call status information log file. A process required for outputting the accounting information and the traffic information is executed not by the call control unit but by the call information management unit. Hence, according to this call control management system, the first object can be accomplished.
When constructing the call control management system according to the present invention, a unit, which may be adopted as the call control unit, when starting the control relative to a new call, allocates unique call identification data to this call, indicates, each time the call status transition is made, a status after the call transition, and outputs a call status record containing the call identification data allocated to the call to the call status information log file. A unit that may be adopted as the call information management unit extracts the call status record pertaining to the same call from the call status information log file by use of the call identification data.
Further, when constructing the call control management system in this way, a unit that may be used as the call information management unit extracts only the call status record needed for creating the call information record on the same call from the call status information log file. In case the call information management unit is thus constructed, a quantity of the information transferred to the call information management unit from the call control unit (the call status information log file) can be set to the minimum required. Therefore, in the case of using a communication line (e.g., a LAN line) employed also by other devices in order to connect toe call control unit to the call information management unit, it is desirable that the above construction be adopted.
Further, the call information management unit creates a call information record in which accounting information and traffic information can be totalized, and outputs, when indicated to output the accounting information or the traffic information, a result of totalizing the call information records stored in the form of the file on the basis of a content of the indication. With this call information management unit employed, the call control management system capable of accomplishing the second object given above is to be obtained.
Then, the call control management system further comprises an application unit for controlling the call control unit in order to implement a service of connecting the telephone line network to a computer, this application unit having an application information log file for storing a record showing a content of the service implemented, and storing the application information log file with the record showing the content of the service when starting the service. Then, the call information management unit, when indicated to output information based on service units, outputs information on a designated service by combining the record stored in the application information log file with the call information record stored in the form of the file. With this call information management unit used, the call control management system capable of accomplishing the third object given above is to be obtained.
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Akimoto Kiyomi
Iwami Yasuo
Yoshimatsu Tomokiyo
Fujitsu Limited
Helfgott & Karas P C
Tran Quoc D.
Tran Sinh
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