JPH07143235A - Private exchange system - Google Patents

Abstract

(57) [Summary] [Purpose] A fixed speed dial can be used even when a call is received from an outside line to an extension line, and the fixed speed dial can be set so that it is an optimum numbering plan for use by a user from an outside line. And, it should be possible to have a degree of freedom of change. [Structure] The extension lines 3-1 to 3-n and the extension lines 2-1 to 2-m are accommodated for exchange connection, and the extension lines are grouped into predetermined groups. In addition to registering the fixed speed dial number holding means 15 that has a password for each group, and selecting a group corresponding to the password input from the calling side when receiving an incoming call from an outside line, it corresponds to the fixed speed dial input from the calling side. A control means (14) for obtaining a registration destination of the fixed speed dial of the corresponding group and performing switching connection is configured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a private branch exchange system such as a PBX (Private Private Branch Exchange) connected to a network for use.

[0002]

2. Description of the Related Art In recent years, exchanges have become software-controlled by using a microprocessor as the center of control, and have become increasingly sophisticated and highly functional. An electronic exchange (private branch exchange) for a private telephone exchange using a microcomputer accommodates an extension line and an outside line, and performs various exchange functions between the extension lines and between the extension line and the outside line. Service is possible.

A fixed speed dial function is one of the service functions of the private branch exchange. This is because the dialing dial number corresponding to a specific fixed speed dial number is set and registered in advance in the private branch exchange, and when the terminal user of each extension inputs and operates this fixed speed dial number from the extension terminal, this fixed speed dial number is entered. In the private branch exchange, the outgoing dial number registered for the correspondence is treated as the outgoing dial number from the terminal.

Therefore, by assigning a dial number of a destination frequently used to the fixed speed dial number, it is not necessary to perform a dial operation with a long number of digits, the labor of the dial operation is reduced, and an erroneous dial suppression effect is obtained. It is also very convenient to use.

By the way, in the conventional private branch exchange system,
The numbering plan for fixed speed dials is common within one tenant and was not separate for each service group. In other words, a private branch exchange can accommodate multiple extensions, but all extensions do not necessarily have the same service, and depending on the private branch exchange system, ground restrictions may be imposed on each extension (e.g., restrictions on outgoing calls for international calls and outgoing calls for international calls). You can set various restrictions such as restrictions and incoming calls restrictions so that they cannot be used indiscriminately. This is called a service class, and the extensions are divided into service classes according to the regulations. For example, a service that can only make an extension call is the lowest service class, and a service that does not have any restrictions is the highest service class. Extension groups belonging to the same service class are called service groups.

In the fixed speed dial function, a calling dial number is set and registered in advance in the private branch exchange so as to correspond to a specific fixed speed dial number, and a user of each extension terminal inputs the fixed speed dial number from the extension terminal. Then, since the registered dial number corresponding to the fixed speed dial number is output and is commonly used by each extension terminal, the fixed speed dial number plan is common within one tenant.

That is, as shown in FIG. 6, regarding the conventional relationship between tenants and fixed speed dials, a fixed speed dial conversion table common to each service class is provided, and each fixed line uses this fixed speed dial conversion table. When using the fixed speed dial function, for example, if you enter a special number for fixed speed dial transmission and then input the fixed speed dial, the exchange will refer to the common fixed speed dial conversion table. Is converted into a corresponding dial number, and the converted dial number is treated as outgoing dial information of the outgoing terminal.

Since it is a fixed speed dial, it is usual to set a common dial destination which is frequently used by users of the extension accommodated in the private branch exchange system as the speed dial. For example, it is a telephone number of an extension accommodated in the private branch exchange system.

[0009] Then, the private branch exchange receives the converted telephone number as outgoing dial information from the extension for which the special number was operated, checks the regulation class and the like thereafter, and if it is out of regulation, the incoming call operation is started.

[0010]

As described above, in the conventional private branch exchange system having the fixed speed dial function, the fixed speed dial conversion tables necessary for implementing the fixed speed dial function are not distinguished for each service group.
I am trying to use it in common. Therefore, the fixed speed dial numbering plan is common within one tenant.

Therefore, when changing the registration destination (registered dial number) of the fixed speed dial, it is necessary to inform all users of the tenant of the change thoroughly. Therefore, it is easy to set once and start the operation. It can not be changed.

Further, since the fixed speed dial is commonly used in the same tenant as described above, the telephone number registered as the speed dial number is limited to one that is frequently used in the tenant. This is because it is a speed dial, so the meaning of the fixed speed dial is lost when the speed dial number has multiple digits, and since it is only a few digits at the longest, it can be registered in the fixed speed dial conversion table. This is because the number of speed dials can be limited according to the number of digits. Therefore, the dial contents set for the speed dial must be commonly used by many people. Therefore, the registration can be restricted by itself, and is generally limited to the extension or the like frequently used by the tenant.

On the other hand, one of the service functions of the private branch exchange is called additional number system dial-in. This is a function that allows you to specify a specific extension from an outside line and receive the call directly to that extension. After the call is made to the private branch exchange by the representative number (representative telephone number), the extension number is additionally dialed from the calling side. By doing so, it is possible to make a direct call to the intended extension.

When it is desired to make an incoming call to an extension accommodated in a private branch exchange adopting the additional number system dial-in, the function of the fixed speed dial of the private branch exchange can be utilized when making an additional dial. . The fixed speed dial number that can be used in this case is the same as that used in the tenant.

However, the additional number system dial-in is a function for the user who receives the call from the central office line, while the fixed speed dial is a service function for the extension line.
The extension number registered in the private branch exchange as a fixed speed dial number is not always intended for an outside person. If an extension number that is frequently used by an outside caller (user of additional number system dial-in) is not registered as a fixed speed dial number, all digits of the intended extension number are used as an additional dial.

As described above, the conventional fixed speed dial is difficult to use when an incoming call is received by the additional number system dial-in.
It cannot be said that the special functions are fully utilized.
Therefore, an object of the present invention is to make full use of the function of the fixed speed dial of the private branch exchange even when an incoming call is received by the additional number system dial-in, and the fixed speed dial is used by the user from the outside line. An object of the present invention is to provide a private branch exchange system that can be set so as to have an optimal numbering plan for use, and that has a degree of freedom of change.

[0017]

In order to achieve the above object, the present invention is configured as follows. That is, in a private branch exchange system in which an external line and an internal line are accommodated for exchange connection, and the internal line is divided into a predetermined group, a fixed speed dial number holding means for registering a fixed speed dial for each group and having a password for each group. When a call is received from an outside line, a group is selected in response to the password input from the calling side, a fixed speed dial registration destination of the corresponding group is requested in response to the fixed speed dial input from the calling side, and control for switching connection is performed. And means.

[0018]

According to the present invention, when a password and a fixed speed dial are input from the calling side at the time of an incoming call that enables additional dialing, such as when an incoming call is made by an additional number system dial-in, the password belongs. By converting the fixed speed dial corresponding to the group to the corresponding registration destination, the destination is known, and control is performed so that the converted registration destination receives the call. Different fixed speed dials can be registered for each group, and a group can be selected with a password, so that a caller on the outside line can call the intended extension by using the speed dial when receiving a call from an outside line.

Since the fixed speed dial registration contents are grouped, the fixed speed dial number plan can be optimally set according to the degree of importance within the group, and it is exclusive to the group. Even if the fixed speed dial registration is freely changed, added, or deleted, it does not hinder other groups, so that the fixed speed dial registration can be freely changed. Therefore, it is possible to register the extension line that is frequently used by users from the outside line to the fixed speed dial, and not only can the function of the fixed speed dial be fully utilized, but also the function is easy to use. It is possible to provide a private branch exchange system having the features such as the above.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a private branch exchange system according to an embodiment of the present invention. In the figure, 1 is a private branch exchange, 2-1 to 2-m are extension terminals such as extension telephones, and 3-1 to 3-n are external lines (subscriber lines, etc.).

The private branch exchange 1 accommodates extension terminals and external lines (station line, leased line, etc.), and performs exchange connection between the internal lines and between the internal line and the external line. , Trunk circuits 12-1 to 12-n, line circuit 1
3-1 to 13-m, a control unit (central control unit CC) 14, a storage unit 15, a tone signal generation circuit 16 and the like.

The call path switch 11 is used to perform exchange connection between extension lines or from extension line to outside line (station line or private line) and from outside line to extension line, and the control unit 14 performs the exchange operation in this call line switch 11. It controls all kinds of control including the control of.

The storage unit 15 stores various control programs and various tables of the control unit 14 and data such as set function contents, and other various information generated in the exchange, such as a calling extension. Various information such as number information and its call time, the number of calls, the number of outgoing calls to the outside line, the telephone number of the destination, the call time, the call charge, and the current state are updated and stored in the storage unit 15, and the maintenance terminal 6 and A program and the like for controlling data exchange between the two are held.

The maintenance terminal 6 has an input means such as a keyboard and a display (display means), and can input and change data and programs to the exchange main body 1 and read out data and the like. The maintenance terminal 6 is connected to the control unit 14 and can communicate with the control unit 14.

Line circuits 13-1 to 13 of the exchange main body 1
-M is a connection interface provided for each extension, and serves as a connection interface between the communication path switch 11 and each extension terminal. The trunk circuits 12-1 to 12-n are external lines 3-1 to 3 corresponding to the speech path switch 11, respectively.
It is a circuit that interfaces with -m and also performs DC loop closure for incoming call detection and line capture.

Under the control of the control unit 14, the speech path switch 11 includes the line circuits 13-1 to 13-m and the trunk circuit 1
The normal switching operation is enabled by controlling the communication path between 2-1 to 12-n. Further, the tone signal generation circuit 16 is connected to the communication path switch 11 so that various signal sounds necessary for the telephone system can be transmitted.

Signals are exchanged between the terminal control cards such as the line circuits 13-1 to 13-m and the trunk circuits 12-1 to 12-n and the control section 14 by the control highway 18, but each terminal control card is turned on. Since it is assigned to an output port, each port has its own port number decoding means so that the terminal can be specified in the form of a port number that identifies it. Is recognized as access to.

The above-described constituent elements in the exchange main body 1 are connected to the control unit 14 via the control highway 18, and the control unit 14 follows the line circuits 13-1 to 13-3 according to the control program stored in the storage unit 15 in advance. 13-m and trunk circuits 12-1 to 12-n are controlled so that a communication path is formed between them to enable a normal exchange operation. In order to realize these controls, the storage unit 15 is provided with programs and data for performing various controls based on dial information, such as selecting a partner port number to be exchange-controlled and off-hook and on-hook signals. Has been done.

Further, the control unit 14 is provided with fixed speed dials to be used within each service group of each extension extension from each extension telephone terminal (in the case of a multifunction telephone) or from the maintenance terminal 6 to the accommodation extension service group. Settings can be registered. This change requires an ID code when operating from a telephone terminal, and a preset ID
Only when they match with the code, the speed dial and extension number can be registered in the fixed speed dial number table in the service group to which the user belongs, or the registration can be deleted or changed. Maintenance terminal 6
From, you can register speed dials and extension numbers in the fixed speed dial number table for each service group, or delete or change the registration.

Further, in the fixed speed dial number table, different passwords are set for each service group so that they can be used separately for each service group. When the fixed speed dial is used from the outside, the password is input. Waiting time, and referring to the fixed speed dial number table in the service group having the same password, the speed dial is converted into the corresponding extension number and output.

No password is required for use from an extension. In this case, the speed dial is converted into a corresponding extension number by referring to the registered speed dial number table in the service group to which the calling extension belongs. It is configured to output.

The fixed speed dial number table is stored in the storage unit 1.
5, the control unit 14 executes the fixed speed dial function execution program stored in the storage unit 15,
With reference to this, the fixed speed dial function is obtained.

Next, the operation of the system having the above configuration will be described. In the system of the present invention, a fixed speed dial number table for each service group is registered in advance in the storage unit 15 together with the password. Usually, the fixed console speed dial data is set from the maintenance console 6. The password is also set from the maintenance console 6. The procedure of registration using the fixed speed dial registration command according to the present invention will be described below.

First, area allocation is performed. This is a work for allocating as many areas of the fixed speed dial data table as the number of service groups on the storage unit 15. The service group number is set and registered in the area. This allows the fixed speed dial to be registered for each number in the service group number table in which the service group number is registered. The same number corresponds to the service group number and the fixed speed dial conversion table number on a one-to-one basis.

After area allocation is completed, fixed speed dial registration is performed for each area. The registration of the password when the incoming call is received by the additional number system dial-in is also performed from the maintenance console 6. The setting status of the fixed speed dial for each service group can be output to the maintenance console 6 and can be output to an output device such as a display or printer attached to the console 6 for confirmation.

While confirming the registered contents in this way,
Register the service group corresponding to the fixed speed dial number table to be used together with the password. Figure 3 shows the relationship between passwords, service groups, and fixed speed dials.

The structure of the data table is shown in FIG. The fixed speed dial conversion table contains fixed speed dials and corresponding registration destination numbers. FIG. 5 shows a processing flow when a fixed speed dial is used in the additional number system dial-in.

Next, the operation during operation of the apparatus of this embodiment having the above settings will be described. In this system, if there is an incoming call from an outside line, the control unit 14 detects the incoming call from the trunk circuits 12-1 to 12-n and causes the extension terminal (reception) set as a representative to receive the incoming call. Alternatively, if the incoming call comes in by the additional number system dial-in, the next additional number is waited for, and the extension number is entered as the additional number, or a password and further fixed speed dial special number and fixed shortened number will be described later. Enter the dial and to call the extension corresponding to this.

Then, a call path is secured by the response (off-hook) of the extension terminal, and communication between the two is enabled. To transfer this call to another extension, use the transfer operation from the receiving terminal.

Then, the control unit 14 of the private branch exchange checks the regulation for the transfer destination extension and then calls the extension if connection is possible. When the other party responds, the extension terminal that has performed the transfer operation is turned off, so that the control unit 14 secures the communication path between the transfer destination extension and the calling side external line and enables the two parties to talk.

The call from the extension line to the outside line is made by the call operation of the extension terminal, and the control unit 14 causes the trunk circuits 12-1 to 12-
Find an empty one of n, check the connection restriction with the calling extension, and if available, use this empty trunk circuit to secure a call path and output dial information to the central office switch. Done in. Then, it becomes possible to communicate when connected to the other party via the central office.

Between the extensions, the extension number is received from the calling extension, or the fixed speed dial special number and the fixed speed dial input are received, the extension to be connected is known, the connection regulation between the extensions is checked, and connection is possible. For example, the incoming call is controlled for the line circuit of the corresponding extension number, and the connection terminal of the line circuit responds to secure the communication path and enable communication.

Various controls including transmission / reception control of a trunk circuit and a line circuit are performed by using port numbers. For example, if a certain extension A is assigned to the port number PN n, the extension A is assigned. When calling, the method of accessing the port number PN n is used. Such control is realized by the control unit 14 controlling based on the terminal-port number information stored in the storage unit 15.

A feature of the present invention is that when an incoming call is received by dial-in with an additional number system, a fixed speed dial registered in a fixed speed dial number table determined by the password received from the caller is used to reach the intended extension. It has a function that allows it to receive an incoming call.
With this function, fixed speed dials are internally set for each service group so that the fixed speed dials that are frequently used in the service group can be serviced, and the fixed speed dials can also be used for users from outside lines. I was able to use it to reach the desired extension.

The details will be described below with reference to FIGS. 2 and 5. Any trunk circuit 12-1 to 12-
When an incoming call is received from the central office line through the additional number system dial-in (A1 in FIG. 5), the control unit 14 detects the incoming call through the trunk circuit and waits for the password (S1 in FIG. 2). , S2).

When the control section 14 receives the password information from the sender via the trunk circuit (A2 in FIG. 5), the password check is started (A3 in FIG. 5; S2 to S in FIG. 2).
4). As a result, the control unit 14 checks whether the password is valid from the sender (S4 in FIG. 2).

As a result, if the passwords do not match, it means that the password is invalid and the sender is controlled to send BT (busy tone) (S13 in FIG. 2). As a result, the control unit 14 causes the tone signal generation circuit 16 to generate a busy tone and outputs the busy tone to the corresponding trunk circuit.
This allows callers from outside to hear a busy tone,
Know that the password was invalid.

If the result of the check in step S4 is that the password is correct, the control unit 14 checks from the storage unit 15 where the service group is (A3 in FIG. 5).
A4; S2 to S4 in FIG. 2). Then, the fixed speed dial number table corresponding to the service group is known.
When the caller dials the "fixed speed dial transmission special number" and the "fixed speed dial number" (A5 in FIG. 5), the control unit 14 causes the "fixed speed dial transmission special number" + "fixed speed dial number" via the trunk circuit. Number "is received (S6 in FIG. 2).

Then, the control unit 14 knows from the fixed speed dial dialing special number that the request is to use fixed speed dial transmission, and from the fixed speed dial number information that follows, the corresponding fixed speed dial is the fixed speed dial. A collation check is performed to see if it is in the number table (S7, S8 in FIG. 2). As a result, if not applicable, the control unit 14 controls to send BT (busy tone) to the caller (S13 in FIG. 2). As a result, the control unit 14 causes the tone signal generation circuit 16 to generate a busy tone and outputs the busy tone to the corresponding trunk circuit. As a result, the caller from the outside line hears the busy tone and knows that the fixed speed dial input operation was invalid.

If the result of the check in step S8 is that there is a match, the control unit 14 converts it into a dial number (registration extension number) corresponding to the fixed abbreviated dial number (A6 in FIG. 5). Recognized as an extension number. Then, the control unit 14 checks whether or not the extension is vacant and whether there is incoming call regulation or the like (A7 in FIG. 5).
Control to send (busy tone) (S1 in FIG. 2)
3). As a result, the tone signal generation circuit 16 generates a busy tone and outputs it to the corresponding trunk circuit. As a result, the caller from the outside line hears the busy tone and knows that the extension corresponding to the input fixed speed dial is busy or cannot be connected.

On the other hand, as a result of the check in step S8,
If there is no connection regulation and it is free, the control unit 14
Generates a ringer signal from the tone signal generation circuit 16 and gives it to the line circuit of the corresponding extension, and gives a ringer signal to the corresponding extension to make it ring and signal the incoming call (A8, A in FIG. 5).
9; S11 in FIG. 2). When the terminal goes off-hook due to ringing of the ringer, the control unit 14 knows this via the line circuit, secures the communication path, and enables communication between the two (FIG. 5).
A10, A11; S12 in FIG. 2).

As described above, by dividing the extensions into service classes and setting the fixed speed dials of the extension for each service class, it becomes possible to set the fixed speed dials according to the actual situation for each service class. An extension number that is frequently used can be set as a fixed speed dial, which makes it easy for users of the extension to use it.In addition, a password can be set for each service class so that a fixed speed dial for a service class with the same password can be set. By making it available from the outside line, the fixed speed dial corresponding to the desired extension line can be selected, and the fixed speed dial function can be fully utilized. Therefore, in the additional number system dial-in exchange system, if the password and the fixed abbreviated dial number are known, the system can be easily used even if it is an exchange system for an extension dial number plan with a long number of digits.

The fixed speed dial function is originally a service function for users of a private branch exchange accommodation extension. Therefore, the usage from the extension of the private branch exchange is also explained.
From the extension, the fixed speed dial can be used by operating the function button of the fixed speed dial or inputting the fixed speed dial special number on the extension terminal. Then, when the fixed speed dial is operated next, the corresponding registration destination number in the fixed speed dial number table belonging to the service class of the extension is read out, and the control unit 14 recognizes this as the dialed number, and the number is called. If the connection is possible after checking the connection restrictions with the extension and whether or not it is available, the extension of that number is called.

When calling an extension of another service class by a fixed speed dial, the service class selection function button or the service class selection special number on the extension terminal is input, and then the password of the target service group is input. Operate the function button of the fixed speed dial or enter the fixed speed dial special number. Next, input the fixed speed dial of the extension of the target service group.

Inputting like this,
The control unit 14 checks the password at the password input stage to check whether the password is valid or invalid, and if it is invalid, sends a busy tone (BT) to the extension. If the password is valid, the service class corresponding to the password is read and the fixed speed dial transmission special number (or fixed speed dial function button input) and fixed speed dial number sent continuously from the calling terminal are received, and the service class corresponding to the above service class is received. Convert the corresponding number in the fixed speed dial number table. If these numbers are wrongly dialed, a busy tone is sent to the calling terminal. If the entered fixed speed dial number is a registered number, it is converted to an extension number. Then, the state of the extension is checked, and if the extension is not available, a busy tone is sent to the calling terminal. If the extension is available, the extension is called, and if the extension responds, the extension terminal is connected.

As described above, according to the present invention, in the private branch exchange adopting the additional number system dial-in system, the extension is divided into service groups, the password is set for each service group, and each service group has its own The fixed speed dial for each service group can be set and registered, and the fixed speed dial for each service group can be specified and used by the password input operation on the calling side. As a result, even when an incoming call is made from the central office line, the caller can make an incoming call to the intended extension by using the fixed speed dial for each service group by the password input operation. In addition, because fixed speed dial registration is separated for each service group, it is possible to easily add and change fixed speed dial numbers, and to set fixed speed dial numbers optimally according to the actual situation of the user. You can change it. Therefore,
Highly flexible, easy-to-use fixed speed dial function can be realized. The present invention is not limited to the embodiments described above and shown in the drawings, and can be appropriately modified and implemented within the scope of the invention.

[0057]

As described above, according to the present invention, when an incoming call is received by the additional number system dial-in, the fixed speed dial number for each service group of the sender's password can be used. Further, since fixed speed dial registration can be performed for each service group, it is possible to provide a private branch exchange system having features such as easy addition and change.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an embodiment of the present invention,
The block diagram which shows the system configuration example of this invention.

FIG. 2 is a diagram for explaining an embodiment of the present invention,
The flowchart for demonstrating the operation example of this invention.

FIG. 3 is a diagram for explaining an embodiment of the present invention,
The figure which shows the relationship of the password used by the system of this invention, a service class, and fixed speed dialing.

FIG. 4 is a diagram for explaining an embodiment of the present invention,
The figure which shows the data structure example of the fixed speed dial number table classified by service class used by the system of this invention.

FIG. 5 is a diagram for explaining an embodiment of the present invention,
FIG. 6 is an operation transition diagram of the system when a fixed speed dial is used in the additional number system dial-in of the present invention.

FIG. 6 is a diagram for explaining a conventional example, and is a diagram for explaining a usage pattern of a conventional fixed speed dial number table.

[Explanation of symbols]

 1 ... Private branch exchange 2-1 to 2-m ... Extension terminals such as extension telephones 3-1 to 3-n ... Outer line (subscriber line, etc.) 6 ... Maintenance terminal 6 11 ... Call path switch 12-1 to 12-n ... trunk circuit 13-1 to 13-m ... line circuit 14 ... control unit (central control unit CC) 15 ... storage unit 16 ... tone signal generation circuit

Claims (2)

[Claims] 1. In a private branch exchange system in which an external line and an internal line are accommodated for exchange connection, and the internal line is divided into predetermined groups, a fixed speed dial having a fixed speed dial registered for each group and having a password for each group. Select a group according to the number holding means and the password input from the calling side when receiving a call from an outside line, and ask for the registration destination of the fixed speed dial of the corresponding group in response to the fixed speed dial input from the calling side, and exchange it. A private branch exchange system comprising control means for connection. 2. In a private branch exchange system in which an external line and an internal line are accommodated for exchange connection, and the internal line is divided into a predetermined group, a fixed speed dial having a fixed speed dial registered for each group and having a password for each group. Select a group corresponding to the number holding means and the password input from the calling side when making a call from an extension, and ask for the registration destination of the fixed speed dial of the corresponding group in response to the fixed speed dial input from the calling side. A private branch exchange system comprising control means for making dial information from a calling side.