JPH07203086A - Method for selecting channel in exchange system - Google Patents

Abstract

PURPOSE:To adjust the using rate of the channel to be used at the time of sending transmission by the outside line of a common carrier to correspond to the contract communication charge. CONSTITUTION:A central control unit 6 reports the identification code of the common carrier and the selection signal and the actual communication time to a charge calculator 8 for each end of the communication. The charge calculator calculates the communication charge by common carriers and updates the accumulated communication charge for each group at the storage. It identifies the group of the lowest using ratio for the upper limit value of the contract communication charge. The central control unit accepts the identification code of the common carrier of the lowest using rate from the identification code, it stores the code in a main storage 7. Then, when a call is requested from each extension subscriber housed in the private branch exchange, the connection of a call to the channel presented by the common carrier of the lowest using rate stored in the main storage is directed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a call path selection method for making an outside line in a private branch exchange, and more particularly to distribution of call charges to respective communication business groups.

[0002]

2. Description of the Related Art For private branch exchanges that have been contracted with multiple telecommunications carriers, a contract call charge is set for each telecommunications carrier, and the contract call charges are set within a predetermined period (for example, every month). In order to keep the call volume commensurate with each other, for example, the maintenance personnel adjust the accumulated call time every week to calculate the accumulated call charge and use the call route of the telecommunications carrier with a low usage ratio. I manually created a private branch exchange database that specifies

[0003]

The above-mentioned speech path selection method in the conventional private branch exchange system has been used by the maintenance personnel so far in order to adjust the call volume to the respective call charges contracted with a plurality of communication business groups. You have to adjust the call volume ratio by calculating the call charge from the call time you have made and updating the database for specifying the call path when making a call.
There is a drawback in that it takes time to calculate the call charge and update the database, and errors are likely to occur.

It is an object of the present invention to provide a speech path selection method in a switching system for adjusting the usage rate of speech paths provided by a communication business group used when making an outside line so as to meet the contracted speech charge.

[0005]

A call path selection method in a switching system of the present invention is a switching system in which a charge calculation device is connected to a private branch exchange to cumulatively accumulate a used call charge for each communication service organization as a call path provider. And a cumulative call charge memory for storing an identification code of the communication carrier, a preset contract call charge, and a cumulative call charge for the actual call time corresponding to each of the communication carriers. When the private branch exchange makes a call, the cumulative call charge memory is searched in response to a request from the private branch exchange, and the cumulative call charge with the lowest usage rate is compared from the cumulative call charge memory to the contract call charge. And a means for notifying the private branch exchange of the identification code of the identified telecommunications carrier, which is used when the call is terminated from the private branch exchange. Means for receiving the identification code and the actual call time of the established communication path, calculating a call charge corresponding to the identification code, updating the accumulated call charges in the past, and accumulating in the accumulated call charge memory; The charge calculation device having; a temporary storage of the identification code of the telecommunications carrier with the lowest usage ratio received from the charge calculation device, and a subscriber dialed when the call originates the temporarily stored identification code. And a private branch exchange having means for adding a caller number and processing for making a call; and means for notifying the charge calculation device of the temporarily stored identification code and the actual call time at the end of a call. .

[0006]

The present invention will be described below with reference to the drawings. FIG. 1 is a relay system diagram showing an embodiment of the present invention.
FIG. 2 is a diagram showing a configuration of a cumulative call charge memory for storing a use call charge for each communication business organization provided in the charge calculation device of FIG.

In FIG. 1, a main switch 3 accommodates an extension subscriber 1, an outside trunk 2, an outgoing register 4, a sender 5 and a central control unit 6, and the central control unit 6 communicates with a notice from a charge calculation unit. A main storage device 7 for temporarily storing an identification code of a business group, and a charge calculation device 8 having a cumulative call charge memory for accumulating and storing contract call charges and used call charges corresponding to each communication business group. It is connected.

The extension subscriber 1 dials the telephone number (callee number) of the called party following the special number for the extension call, and the central control unit 6 detects the called party number from the extension subscriber 1 and the publicly known number is known. By the method, the calling subscriber 1 and the outside trunk 2 are connected to form a communication path with the called party.

At this time, the central control unit 6 which has detected the dial signal temporarily stores the called party number in the main storage unit 7 and requests the identification code of the telecommunications carrier to be connected to the charge calculation unit. The charge calculation device 8 refers to the accumulated call charge memory, compares the latest accumulated call charge with the preset contract call charge for each communication carrier, and selects the communication carrier with the lowest usage rate. Then, the central control unit 6 is notified of the identification code of the telecommunications carrier. The central control unit 6 stores the received identification code in correspondence with the called party number temporarily stored in the main storage unit 7, and adds this identification code to this called party number and sends it to the main switch 3. Then instruct to connect the call path.

When the call ends and the central control unit 6 detects the end of the call, the actual call time is read out together with the identification code of the communication carrier stored in the main storage unit 7 corresponding to the called party number, and the charge is calculated. Notify the device 8. Based on the received identification code and the actual call time, the charge calculation device 8 identifies which communication carrier provided the call path, calculates the call charge, and stores it in the cumulative call charge memory. As shown in FIG. 2, the charge calculation device 8 has a cumulative call charge memory for storing the accumulated call charges and the used call charges corresponding to each communication business group,
Each time the call ends, the identification code of the communication carrier and the actual call time are received from the central control unit 6, the call charge is calculated, and the call charge is added and updated for each communication carrier to update the next call. Prepare for a call request.

After that, when the extension subscriber requests a call from the extension, the caller number from the extension subscriber is received by the transmission register 4 and notified to the central controller 6, and the central controller 6 is notified.
Asked the telecommunications carrier's identification code to the charge calculator,
By repeating the above-mentioned operation of adding the identification code inquired to the called number and transmitting from the sender 5 through the outside trunk, it is possible to always use the speech path provided by the communication business group having the lowest usage rate. it can.

[0012]

As described above, according to the present invention, each time a call request is made, the telecommunications carrier to be connected is inquired to the charge calculation device, and the charge calculation device is set in advance for each telecommunications carrier. The central control unit is notified of the identification code of the telecommunications carrier with the lowest usage rate by comparing and collating it with the charge, and the central control unit adds the identification code to the called number and transmits.
The charge calculation device receives the identification code of the communication carrier used for the call and the actual call time from the central controller each time the call ends, and cumulatively updates the call charge. By designating the lowest communication path of the communication business group, it is possible to automatically achieve the call charge ratio preset for each communication business group.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a cumulative call charge memory for storing a use call charge for each communication business organization provided in the charge calculation device of FIG.

[Explanation of symbols]

 1 Extension subscriber 2 External trunk 3 Main switch 4 Calling register 5 Sender 6 Central controller 7 Main memory 8 Charge calculator

Claims (1)

[Claims] 1. A call path selection method in a switching system in which a charge calculation device is connected to a private branch exchange to cumulatively accumulate use call charges for each communication service organization that is a call path provider;
A cumulative call charge memory for storing the identification code of the communication carrier, the preset contract call charge, and the cumulative call charge of the actual call time corresponding to each of the communication carriers is provided;
During the call processing of the private branch exchange, the cumulative call charge memory is searched in response to a request from the private branch exchange, and the accumulated call charge of the lowest usage rate is compared from the cumulative call charge memory to the contract call charge. Means for identifying the telecommunications carrier and notifying the private branch exchange of the identified code of the identified telecommunications carrier; receiving the identification code of the communication path used at the time of ending the call and the actual call time from the private branch exchange Means for calculating a call charge corresponding to the identification code, updating the accumulated call charge in the past, and accumulating it in the accumulated call charge memory; and the charge calculator received from the charge calculator. Temporarily storing the identification code of the telecommunications carrier with the lowest usage ratio,
Means for adding the temporarily stored identification code to the called number dialed by the subscriber when making a call; and processing for making a call; at the end of the call, the temporarily stored identification code and the actual call time A private branch exchange having means for notifying a computing device; and a communication path selection method in a switching system.