JP2692826B2 - Private branch exchange - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a private branch exchange.

(Prior Art) As is well known, a private branch exchange is a device for performing exchange operations such as mutual connection of a plurality of extension telephones under control thereof, connection of extension lines to external lines, connection of external lines to extension telephones, and the like. In recent years, in addition to such basic operation control, various service functions such as message registration and speed dial registration have been provided, and have become multifunctional. One of the service functions is a service function called a DID receiving method that can directly call or operate an extension telephone or a terminal connected to a private branch exchange.

This function presets the DID incoming line, and when there is an incoming call on this DID incoming line, the caller is prompted to enter the extension number that he wants to receive, and the caller Dials the lead and inputs the extension number,
Check whether or not this extension number matches the registered one, and if it matches, connect to that extension number, and if you want to execute a special service function, a special number preset for execution of that function By inputting (hereinafter referred to as a special number), it is checked whether or not the one corresponding to this special number is registered, and if it is registered, the function can be executed. The service function of this special number can also be used from the extension telephone.

By the way, FIG. 4 shows the configuration of a conventional private branch exchange having such a DID receiving function. In the figure, 1 is an exchange circuit for performing line connection exchange between an office line and an extension line or an extension line and an extension line, 2 is an extension telephone (electronic key telephone), 3 is an extension circuit that connects the exchange circuit 1 and the extension telephone 2, 5 And 5a
Is a local line. 6 is a PB receiver that receives the PB signal (dial tone signal corresponding to each key of the dial push lead) transmitted from the station lines 5 and 5a and decodes it into the data indicated by the PB signal, and 7 is the exchange circuit 1 exchange It is a control unit that is the center of control that performs operation control, various controls based on input data, read / write to the storage unit 8, comparison with stored data in the storage unit 8, and execution of a predetermined service function in accordance with the control. It is mainly composed of. The storage unit 8 stores data, various programs, and the like. Reference numeral 9 is a data setting input / output device for setting data in the storage unit 8 in advance.

In such a configuration, the DID incoming office line is registered in advance in the storage unit 8 from the data setting input / output device 9. Assuming that the pre-registered DID receiving station line 5a is an incoming call to the DID receiving station line 5a from the telephone set on the calling side via the subscriber network, the control unit 7 detects the incoming call. Then, the control unit 7 sends an audible sound such as a dial tone or a voice message, and requests the caller side telephone to send a PB signal such as an extension number, and the PB signal receiver 6 to the station line 5a. Control to connect. This is executed by the program of the control unit 7.

The caller operates the lead push on his or her telephone and inputs the extension number to receive the call. This input operation causes the telephone set on the caller side to send out the extension number for which the input operation has been performed, as a PB signal. Therefore, on the private branch exchange side, the PB signal receiver 6
Receives this PB signal, decodes its contents, and
Convert to dial data corresponding to the signal. This decoded dial data is sent to the control unit 7, and the control unit
When the dial data sequentially sent from the PB signal receiver 6 is assembled and it is judged that the dial data is extension telephone number data, a calling signal is sent to the extension telephone having the corresponding number. Further, when the control unit 7 captures an office line / dedicated line and activates the tandem function, when the caller side sends a special number permitting the activation of the function by the lead push operation of the telephone, It is checked whether or not it matches the special number in the storage unit 8, and if it matches, it is controlled to operate. Therefore, the tandem function can be activated by sending a PB signal from the telephone set on the caller side by a dial push operation. it can.

Even when the service function in the private branch exchange is operated, the caller is provided with a special number that permits the function to be activated and a special number that processes the service function. If they are sent out as PB signals and they match the data in the preset table, the service function can be used.

According to the conventional DID call receiving function as described above, when the call from the extension telephones to the office line is charged for managing the extension telephones, the caller activates the tandem function. Even if the outgoing call operation to the central office line is performed, the private branch exchange cannot identify the calling party.
Since it is not possible to specify who used it, there arises a problem that the charging function of the private branch exchange cannot be effectively operated. In addition, when the service function is operated, the function is operated by the extension number, so the caller's erroneous dialing (extension phone numbers are often set continuously for each group) may cause an unintentional difference. There is an unavoidable drawback in that it makes the telephone of the extension number work. For example, in a private branch exchange installed in a dormitory, etc., when a dormitory student cancels a meal reservation using the DID incoming call function, if he / she accidentally dials his / her telephone number, the reservation for another person will be canceled. Become.

(Problems to be solved by the invention) In this way, one of the service functions of the private branch exchange can directly call or operate an extension telephone or a terminal connected to the private branch exchange by an external dial operation. There is a service function called the DID incoming function. This function sets the DID incoming line in advance, and when there is an incoming call on this DID incoming line, the caller will be prompted to enter the extension number that he wants to receive, and the caller will dial. If you perform a lead push operation and enter an extension number, it is checked whether this extension number matches the registered one, and if it matches, you will be connected to that extension number, and if you want to execute a special service function, By entering a preset special number for execution of a function, it is checked whether or not the one corresponding to this special number is registered, and if it is registered, that function can be executed. Is. The service function based on this special number can also be used from the extension telephone. However, with this conventional DID incoming call function, the permission special number that allows the caller to operate, the special number for operating the service function, and the dial number attached to it (in the case of the tandem function, the called number, the service When the function is activated, the extension number is used for processing, and the service from the extension side is basically managed by the extension telephone number, and the individual callers cannot be identified. for that reason,
When a call is made from an extension telephone to a station line, the call charge can be charged for that extension telephone number because of management by each extension telephone number, but since the first caller cannot be identified, If the extension is used by more than one person, when the caller activates the tandem function and makes an outgoing call operation to the central office line, the switching device side cannot identify the individual user, so the charging function should be provided. It cannot be used effectively.

In addition, when the service function is operated, since the function is operated by the extension number, it is unavoidable that the caller erroneously dials the function to a telephone having a different extension number. is there. For example, in a private branch exchange installed in a dormitory, etc., when a dormitory student cancels a meal reservation using the DID incoming call function, if he / she accidentally dials his / her telephone number, the reservation for another person will be canceled. Become.

Therefore, an object of the present invention is to identify individual callers, to charge the used users without any trouble, and to have a service function that affects third parties. To provide a private branch exchange that prevents erroneous operation.

[Configuration of the invention]

(Means for Solving Problems) In order to achieve the above object, the present invention sets a special number corresponding to each of a plurality of preset service functions, and when the special number is received, the special number is added to the special number. In a private branch exchange equipped with a function for executing a corresponding service function, in association with each of the above plurality of service functions, a reference code for verifying whether or not the service function can be executed is desired to be used. A table to be stored in advance corresponding to the extension user's extension number, a determination means based on the collation code, and a control means to execute the service function. When the caller sends a special number designating a desired service function and the collation code at the time of receiving an incoming call, the determination unit determines the service designated by the special number sent by the collation code. It is determined whether or not it is stored in the table in association with the function, and if it is stored as a result of this determination, by the control means, for the extension of the extension number corresponding to the sent collation code, The service function designated by the special number sent above is executed.

Further, the private branch exchange is characterized in that the table, the judging means and the control means are provided in an exchange main body, and an extension terminal is connected to the exchange main body through an extension line.

Further, the private branch exchange is provided with the table, the judgment means and the control means in the exchange main body, and the exchange main body is connected with a data setting input / output device for inputting setting data necessary for executing the service function. It is also characterized by being present.

(Operation) In such a configuration, for example, when receiving an extension number by dial operation sent after receiving a call from a station line,
The control means directly calls the corresponding extension and connects the line. Also, when the special number is received from a station line or extension by dialing, the corresponding service function table is known based on the special number, and the collation code entered after that is registered, and this collation code is registered. It is checked whether or not there is a match, and if there is a match, it is recognized as a request by the extension number in which the collation code is registered, and the service is implemented.

In this way, the extension user can register the collation code (password) in advance for each service function, and when using this service function, the caller can dial the PB by dialing.
By sending a special number that specifies a service function and dial data that includes a verification code that only you know by a signal, if there is a corresponding one, it is converted to an extension number corresponding to your own extension and operation from that extension number starts. As a command, the designated service function is executed. Therefore, when making a transmission path from an extension line to a station line, a collation code known only to the person himself / herself is used.
The private branch exchange can identify the individual calling party, can operate the billing function according to the extension number without hindrance, can obtain accurate management data, and can also prevent unauthorized use because the collation code is known only to the individual. Like
In addition, since the service function is activated by using the personal collation code registered for each service function, it is possible to prevent the execution of the function which is disadvantageous to others due to an erroneous operation.

Therefore, according to the present invention, it is possible to identify individual callers, charge the charged individual without any trouble, and to provide a service function that affects a third party. Can provide a private branch exchange with no erroneous operation.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of a private branch exchange according to the present invention. In FIG. 1, reference numeral 1 is a switching circuit for switching line connection between an office line and an extension line or an extension line and an extension line, and 2 is an extension telephone (electronic type). Key telephone), 3 is an extension circuit connecting the exchange circuit 1 and the extension telephone 2, and 5 and 5a are office lines. Of these, the office line 5a is set to be an incoming line for DID. 6 is a PB receiver that receives the PB signal (dial tone signal corresponding to each key of the dial push lead) transmitted from the station lines 5 and 5a and decodes it into the data indicated by the PB signal, and 7a is the exchange circuit 1 exchange It is a control unit that is the center of the control that performs operation control, various controls based on input data, read / write to the storage unit 8a, comparison with stored data in the storage unit 8a, and execution of predetermined service functions in accordance with the control. It is mainly composed of. The storage unit 8a stores data, various programs, and the like. The storage unit receiver 8a stores an extension telephone number table 200 storing extension telephone numbers as shown in FIG. Data such as a password that the extension user can arbitrarily decide for each service function as shown in Fig. (B) (this is like a personal identification number of a cash card, but it must be unique in this table). However, the number of digits is variable; hereinafter, this is referred to as a personal identification number), the personal identification tables 201 to 2mn for each service function (where m and n =
1, 2, 3, ...) And, as shown in FIG. 2 (c), the top address of the table storing the special number for operating the service function and the secret code for using the special number is stored. The linkage table 210 and the like are newly added. Reference numeral 9 is a data setting input / output device for setting data in the storage unit 8a in advance.

In such a configuration, the DID incoming office line is registered in advance in the storage unit 8a from the data setting input / output device 9. If this pre-registered DID receiving station line is 5a, and the DID receiving station line 5a receives an incoming call from the telephone set on the caller side via the subscriber network, the control unit 7a detects an incoming call, Then, the control unit 7a makes a PB signal transmission request such as an extension number, a special number or a personal identification number to the calling side telephone by an audible sound such as a dial tone or a voice message, and the PB signal receiver 6 is connected to the station line. Control to connect to 5a. This is executed by the program by the control unit 7a.

The caller operates the lead push on his / her own telephone, and if the purpose is to make a call to the extension, the extension number to be called,
If you want to use the service function, enter a special number or PIN. By this input operation, from the telephone side of the calling party,
Since the extension number for which the input operation has been performed is transmitted as a PB signal, the PB signal receiver 6 receives the PB signal on the private branch exchange side, decodes the content thereof, and converts it into dial data corresponding to the PB signal. The decoded dial data is sent to the control unit 7a, which controls the PB signal receiver 6
This dial data sent in order is checked by referring to the extension number table 200 and the linkage table 210 of the service function correspondence table for special numbers to see if there is any, and the one corresponding to the extension telephone number table 200 If there is, it is determined that the input data is extension telephone number data, a call signal is sent to the extension telephone of the corresponding number, and if there is a response, the extension is connected. Also, if there is a corresponding linkage table 210 of the service function correspondence table by special number, the table (201 to 2mn) used for the corresponding service function is this linkage table.
210, the input data by the additional dial operation is received, and this is compared with the personal identification number of the personal identification data table corresponding to the service function for each special number obtained from the linkage table 210. Since this personal identification number is registered in the personal identification data table corresponding to the special number service function for each extension number, if there is a match as a result of the above comparison, the extension number for which this personal identification number is registered Knowing the number, the service function corresponding to the special number by the extension number is implemented.

Even when the service function in the private branch exchange is operated from the extension telephone, the caller sends a special number that permits the function to be activated, a special number that processes the service function, and a personal identification number as a PB signal by the lead pushing operation. If they are input and they match the data in the preset table, the service function of the extension can be used as a command by the extension telephone of the extension number that has been called.

If none of the above-mentioned collation results correspond, error processing is performed and the process ends. In the case of an incoming call that does not use the DID incoming line, normal incoming call processing is performed.

The details of the operation by the above-mentioned DID receiving function will be described with reference to the flowchart of FIG. When the control unit 7a detects an incoming call from the station line set to DID incoming (step s1),
The control unit 7a sends a guidance for urging the service caller to send a PB signal, and then connects the central line 5 to the PB signal receiver 6. Then, the PB signal from the caller is received for each digit (step s2). Every time one digit is received, it is first checked whether or not there is data corresponding to the extension telephone number table 200 and the linkage table 210 of the service function correspondence by special number (steps s4, s5). As a result, if there is no corresponding data, the reception ends (step s3),
Moving to step s12, the conventional processing routine for error processing is executed.

If there is a corresponding number in the extension number table as a result of the determination in step s4, it is determined to be an incoming call process, and step s12
Then, the conventional processing routine for the incoming call processing is executed.

When it is determined that there is no corresponding data in the linkage table 210 of the service function correspondence table for special numbers as a result of the determination in step s5, the process of further receiving the PB signal is continued (step s2), and the received PB signal is received. If there is data corresponding to the linkage table 210 of the service function correspondence table by special number, the process goes to step s6 to obtain the personal identification data table used for the corresponding service function from the linkage table 210. At this stage, the PB signal so far is determined as the service type special number, and the PB signal from the caller side thereafter is determined as the content of the unique data. That is, the content of PB signal data is decomposed.

Then, in order to receive the unique data as the personal identification number data, the PB signal is successively received digit by digit (step s7). Then, the received data and the personal identification data table (201 to 2) for each service function that is unique table data
mn), the stored data in the specified personal identification data table for each service function is checked (steps s8, s9), and if there is no match, step s
Move to 12 and perform conventional error handling. If only a part of them matches, the process moves to the process of receiving the PB signal in order to accept the last digit (step s7). If there is matched data, the personal identification number data of the user is registered in correspondence with the extension telephone number. Therefore, the extension telephone number corresponding to the personal identification number is obtained from the pointer (step s10). After activating the corresponding service function from the number (step s11), the conventional processing is performed (step s12). If there is no final match, conventional error processing is performed in step s12.

As described above, in a private branch exchange having a DID call receiving function, extension users can register the personal identification number (collation code) for each service function in advance, and when using this service function, the caller uses the PB signal. By sending dial data that includes a special number that specifies a service function and a personal identification number that only you know, if there is a corresponding one, it is converted to an extension number corresponding to your own extension and that as an operation command from that extension number. Since the designated service function is executed, the PIN code known only to the person himself / herself will be used when making an outgoing call through another station line using the tandem function. Since the individual caller can be identified, the individual caller of the extension number can be charged without any trouble, and accurate management data can be obtained. Since the personal identification number is not known only to the individual, so it is also possible to prevent unauthorized use. In addition, since the service function is activated by using the personal identification number registered for each service function, for example, in a private branch exchange installed in a dormitory or the like, a dormitory student can cancel the meal reservation using the DID incoming call function. In the past, if you accidentally dialed your own telephone number when you made a call, there was the inconvenience of canceling the reservation for another person. It also becomes possible to prevent the execution of functions that are detrimental to.

〔The invention's effect〕

As described above in detail, according to the present invention, it is possible to identify individual callers, to charge the users who have used the callers, and to erroneously operate a service function that affects a third party. It is possible to provide a private branch exchange that eliminates the above problem.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing various tables used in the present apparatus, FIG. 3 is a flow chart for explaining the operation of the present apparatus, and FIG. 4 is a conventional apparatus. 3 is a block diagram showing the configuration of FIG. 1 ... Exchange circuit, 2 ... Extension telephone, 3 ... Extension circuit,
4 ... Station line circuit, 5 ... Station line, 6 ... PB signal receiver, 7a
...... Control unit, 8a …… Storage device, 9 …… Data setting input / output device.

Claims (3)

(57) [Claims] 1. A private branch exchange having a function of defining a special number corresponding to each of a plurality of preset service functions and executing a service function corresponding to the special number when the special number is received. For pre-storing a reference code, which is associated with each of a plurality of service functions and is used to verify whether or not the service function can be executed, in association with an extension number of an extension user who wants to use the service function. Corresponding to the table, the special number that specifies the service function you want to use when receiving a call, and the service code specified by the special code that sent this verification code when the verification code is sent And a judgment means for judging whether or not it is stored in the table, and the sent collation when it is judged that the table is stored by the judgment means. Private branch exchange to relative extension of extension, characterized in that a control means for performing the service function specified by the sent special number corresponding to the item. 2. A private branch exchange comprising: an exchange main body having the table, the judging means and the control means; and an extension terminal connected to the exchange main body via an extension line. Private branch exchange. 3. A private branch exchange comprises a main body of the exchange provided with the table, the judging means and the control means, and data setting input / output for inputting setting data necessary for executing the service function connected to the main body of the exchange. The private branch exchange according to claim 1, further comprising a device.