JPH06205120A - Electronic exchange - Google Patents

Abstract

PURPOSE:To improve the handleability of functions by changing correspondent temporary registration call source information into the information of a holding reception destination when a call is originated by using a super bell signal. CONSTITUTION:A registration table is provided with a storage part 15 for utilizing a super bell function, and a control part (central controller CC) 14 executes the service function based upon the contents of this table. When the super bell call is originated by holding a received call after that call is responded, the responding party is connected to a line wire during holding. Then, the telephone can be performed directly between both of them and the super bell function can be utilized. In this case, the control part 14 temporarily stores the information of a terminal T0 in a super bell call requesting source storage table as the call requesting source information corresponding to the super bell. Thus, when a user received a call while designating the super bell number from the terminal, the handleability of the function can be improved since the call requesting source can be recognized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic exchange, and in particular, in a private branch exchange, a call from a called party of a selective call receiver (superbell response) is directly received by a person with whom a contact is desired. The present invention relates to an electronic exchange capable of performing.

[0002]

2. Description of the Related Art In recent years, exchanges have come to use microprocessors as the center of control, and have become increasingly intelligent and highly functional. By the way, a digital electronic exchange for a private branch exchange using a microcomputer enables various services in addition to the basic function of accommodating internal lines and external lines and performing exchange connection between internal lines and between internal lines and external lines. ing.

For example, a super- call in which a call of a selective call receiver (pager; for example, an NTT pager) provided in a public network, that is, a subscriber network of NTT (Nippon Telegraph and Telephone Company) is assigned to the selective call receiver is assigned. Called from the extension telephone using the bell number, and when the callee of the selective call receiver who knew the call by using the above answered the super bell number from the terminal (telephone), called the selective call receiver. This is a super-bell function which is a selective call receiver calling function dedicated to the local area network, which is adapted to automatically receive an incoming call at the calling terminal.

In recent years, this super bell function has been adopted in electronic exchanges for private networks, and a dedicated call number (hereinafter referred to as a super bell number) is preset for each selective call receiver in the electronic exchange. By doing
The function that allows the selective call receiver to call from the terminal using the superbell number (hereinafter called the superbell call), and the callee of the selective call receiver from this terminal can call the superbell number from the terminal (telephone). When the user responds by using it, the function of automatically receiving an incoming call to the calling side terminal that called the selective call receiver (hereinafter referred to as "super bell response") 2
It consists of two functions.

That is, in an electronic exchange having such a function, for example, for each superbell number as shown in FIG. 4, a party called by the superbell, that is, a party called at the time of answering the superbell (in this case, the superbell number). A super-bell call request source information storage table TBL1 for temporarily storing (a terminal that has made a call request) and a super-bell in which subscriber numbers of selective call receivers that are actually called for each super-bell number as shown in FIG. 5 are stored in advance. Number-call selection call receiver subscriber number information storage table TBL2
When the super bell calling function is used from the terminal accommodated in the electronic exchange, the control unit of the electronic exchange calls the actual selective call receiver according to the procedure of the flowchart shown in FIG. The operation will be described below according to this flowchart.

When a user of the electronic exchange accommodating terminal makes a superbell call, he lifts the handset of the terminal (off-hook) and dials the superbell calling special number or the superbell number. The control unit of the electronic exchange that has learned that there is a need to confirm whether another request source information has already been registered for the superbell number based on the dialed superbell number. , The registration information of the calling party for the super bell number is read from the super bell call request source information storage table TBL1 (step 1
01). Since there is no information if it is not registered, it is confirmed that the super bell is not used, that is, another request source information is not already registered (step 102).

Next, the control unit sets the information of the request source terminal as the request source information corresponding to the super bell number of the super bell call request source information storage table TBL1 and temporarily stores it (step 103). By this, it is registered that the super bell is used for the super bell number.

Next, the control unit receives the selective call reception corresponding to the superbell number from the superbell number-call selective call receiver subscriber number information storage table TBL2 of FIG. 5 based on the dialed superbell number. The subscriber number (telephone number of the selective call receiver) is read out, the office line is captured, the selective call receiver subscriber number is dialed, and the selective call receiver is called (step 104). As a result, the call is made from the station side to the selective call receiver of the selective call receiver subscriber number.

At the stage where this series of operations has been completed, the user of the calling terminal puts on the handset of the terminal (on-hook) and waits for a response (step 105). Although the call ends when the user hooks up, the superbell call request source information storage table TBL1 temporarily stores the information of the superbell call request source corresponding to the superbell number making the superbell call. As a result, the super bell is active on the terminal of the super bell call request source.

Next, when the called party of the selective call receiver answers, the called party dials the super bell response special number and the super bell number from the nearest telephone terminal. Then, the control unit of the electronic exchange learns from this dialed super bell response special number that it is a super bell response, and based on the dialed super bell number information, from the super bell call request source information storage table TBL1. The call request source information temporarily stored for the bell number is read out (step 106), and from this, the calling party is known and the corresponding terminal is called (step 10).
7).

By this call, when the user of the terminal responds by lifting the handset of the terminal (off-hook), the control unit of the electronic exchange secures the communication path between the calling terminal and the called terminal. , Make calls possible. In this way
A call can be made between the extension terminal that has made a superbell response and the extension terminal that has made a call to call the superbell.

As described above, in the conventional electronic exchange having the superbell function, when the superbell response is made, the extension terminal which made the superbell call and the extension terminal which made the superbell response are connected. . Therefore, it is inconvenient in the following cases. For example, this may be the case when the user of the extension terminal who has called the superbell call is a superbell call that has been requested by a third party (for example, the called party of the station line).

In this case, the user of the extension terminal must message the third party's partner number or the like in response to the incoming call from the superbell called party who has answered by calling the superbell. The Bell callee must re-contact the third party based on this message.

[0014]

As described above, in the conventional electronic exchange having the superbell function, when the superbell response is made, the extension terminal which makes the superbell call and the extension terminal which makes the superbell response are provided. When the extension terminal that made the superbell call is connected to the other party and the third party, such as the callee of the local line, has requested the call, the extension terminal calls the superbell call. In the case of a super bell call), when an incoming call is received from the responder called by the super bell call, the user of the extension terminal who calls the super bell calls the responder with the above-mentioned third party. The question that the phone number, requirements, etc. must be transmitted, and the responder must contact the third party again after hearing this message. There are, very troublesome only if, it becomes a waste of time.

A person who receives a superbell call (superbell called party) in response to the superbell call
However, if for some reason the superbell caller cannot be contacted immediately, the person who made the superbell call will leave the seat, and if the superbell callee answers, call the superbell call. There is also a problem that the person who went there is absent, and it becomes impossible to know the requirements, which hinders emergency calls from outside lines.

Therefore, an object of the present invention is to improve the usability of the super bell function by enabling the super bell response to be directly connected to the party who wants to talk even when the super bell is called by a substitute. To provide an exchange.

[0017]

For the above-mentioned purpose, the present invention is constructed as follows. That is, a unique superbell number is set for each selective call receiver subscriber number, and when a call is made from the terminal using the desired supercall number corresponding to the selective call receiver, the selection corresponding to that number is made. The call receiver subscriber number is sent to the public network to call the selective call receiver. At the same time, the caller terminal is temporarily registered as a caller corresponding to the super bell number and the above super bell number is used. When an incoming call arrives, an electronic exchange having a superbell function that connects to the temporary registration terminal corresponding to the superbell number has a storage means for registering the superbell caller for each superbell number and a superbell for holding the incoming call. When a call is made using a number, the temporarily registered caller information corresponding to the super bell number in the storage means is stored in the hold destination. More configuration and control means for changing the information.

[0018]

In this system having such a configuration, a function is provided in which a selective calling receiver (pager) is provided with a dedicated calling number (hereinafter referred to as a super bell number), and a selective calling receiver from a terminal is called by the super bell number ( In an electronic exchange having a (super bell call), there is a storage means for registering a super bell call request source for each super bell number,
When the superbell call is made, the control means registers the superbell call request source in correspondence with the superbell number in the storage means. Then, when there is a superbell response, the incoming call by the response is connected to the superbell call request source.

On the other hand, when an incoming call is put on hold and a call is made using the superbell number, the temporarily registered caller information corresponding to the superbell number in the storage means is changed to the information of the hold destination. When there is a superbell response, the control means connects the incoming call by the response to the superbell call request source, so the incoming call by the response becomes the held line.

When a superbell call is made after the incoming call from a third party is put on hold at the terminal, if the superbell callee performs a response operation (answer special number + superbell number) from the nearest terminal, the super bell It is possible to automatically connect the terminal that answered the bell and the held call.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a system block diagram of an electronic exchange which is an embodiment of the present invention. In the figure, 1 is the exchange main body, 2-1 to 2-m are extension terminals such as extension telephones, and 3-1 to 3-
m is a local line and 4-1 to 4-m are dedicated lines and private lines.

The exchange main body 1 accommodates extension terminals, office lines, leased lines, etc., and performs exchange connection between extension lines and between extension lines and extension lines. Circuits 12-1 to 12-n, line circuit (subscriber circuit) 13-1
.About.13-m, a control unit (central control unit CC) 14, a storage unit 15, a digital interface circuit 16, a tone ringer circuit 17, 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 dedicated line) and from outside line to extension line. It controls all kinds of control including control.

The storage unit 15 stores various control programs of the control unit 14, various tables, 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 5 is also provided.
A program and the like for controlling data exchange with the computer are held.

The maintenance terminal 5 has a keyboard and a display, and can input and change data and programs to the exchange main body 1 and read out data and the like. The digital interface circuit 16 is the exchange main body 1
The maintenance terminal 5 is connected to the control unit 14 via the digital interface circuit 16 for connecting an external digital device to the maintenance terminal 5. The digital interface circuit 16 is an interface capable of high-speed transmission of data, etc.
Is capable of communicating with the control unit 14 of the exchange main body 1 through the digital interface circuit 16.

The line circuits 13-1 to 13-m of the exchange main body 1 are connection interfaces provided for each extension and serve as a connection interface between the communication path switch 11 and each extension terminal. The trunk circuits 12-1 to 12-n interface with the call path switch 11 and the corresponding office lines 3-1 to 3-m and dedicated lines or private lines 4-1 to 4-m, respectively. This is a circuit that performs DC loop closure for detection and line capture.

Under the control of the control unit 14, the call path switch 11 is controlled so that a call path between the line circuits 13-1 to 13-m and the trunk circuits 12-1 to 12-n is formed. Allows normal exchange operation. Further, the tone ringer circuit 17 is connected to the speech path switch 11 so that various signal sounds necessary for the telephone system can be transmitted.

Line circuits 13-1 to 13-m and trunk circuit 12-1
~ 12-n, each terminal control card such as the interface circuit 16 and the control unit 14 transmits and receives signals by the control highway 18, but each terminal control card is assigned to an input / output port, so specify it Each terminal is provided with a decoding means for decoding its own port number so that the terminal can be specified in the form of a port number. When the port number matches that of its own, it is recognized as an access to itself.

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

When a superbell call is made from a desired extension terminal, this system has a function of receiving a call from the other party who responded to the superbell to the extension terminal which made the above-mentioned superbell call, and also an incoming call from an external line or the like. After answering the call, if the call is put on hold and a superbell call is made, the other party who responded to the call with a superbell call is connected to the outside line on hold and a direct call is made between the two parties. It is made possible to use the super bell function made possible, and has a registration table for that in the storage unit 15 so that this service can be used,
The control unit 14 executes the service function based on the contents of this table.

Therefore, the above-mentioned super-bell call request source information storage unit of FIG. 4 and the super-bell number-call selective call receiver subscriber number information storage unit of FIG. 5 are also stored in the storage unit 15 and used as a table. .

BEL000 to BEL999 are selective call receivers used through a public line network such as a public line network. Each subscriber number is assigned and the subscriber line is dialed to the central line. By doing so, the corresponding selective call receiver can be called.

FIG. 2 shows a super-bell-call-holding partner line holding table for temporarily storing the partner line on hold for each terminal making a super-bell call request when the super-bell call is made. To be done.

In the present system having such a configuration, 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 the extension terminal set as a representative (relay stand system). Or extension group type) or directly corresponding extension (PBX dial-in; in the case of receiving a subscriber number from the central office and assigning it to the extension so as to directly receive the call by dialing the subscriber number) Make an incoming call. Then, the communication path is secured by the response of the extension terminal, and the 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 checks the restriction or the like for the transfer destination extension and then calls the extension when 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 call path between the transfer destination extension and the calling side external line and enables the two parties to talk.

In order to make a call from an extension line to an outside line, the control unit 14 searches for an empty one of the trunk circuits 12-1 to 12-n by a call operation of an extension terminal and checks the connection restriction with the calling extension. After that, if it is possible to connect, the empty trunk circuit is used to secure the communication path and the dial information is output to the central office. Then, it becomes possible to communicate when connected to the other party via the central office.

Between the extensions, receiving the extension number from the calling extension,
Check the connection regulation between the extensions, if the connection is possible, control the incoming call to the line circuit of the corresponding extension number, and secure the call path by the connection terminal of the line circuit responding,
Enable communication.

Various controls including call control of trunk circuits and line circuits are performed using port numbers. For example, if a certain extension number A is assigned to the port number PN n, the extension number 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.

Here, the present system is adapted to use the super bell function, and in particular, when a super-bell call is made to the selective call receiver by holding an incoming call from another party, a response to which a super bell response is given. The recipient of the call
It is characterized in that it can be controlled so as to make it a caller who has been put on hold. This control will be described below with reference to the flowchart of FIG.

In the present invention, a super-bell call request source information storage table TBL1 as shown in FIG. 4 for storing the called party for each super-bell number, and a selective call receiver (BEL0-BEL0-) for actually calling for each super-bell number. BEL
-999) storing the calling number, a super bell number-call selective calling receiver subscriber number information storage table TBL2 as shown in FIG. 5, and at the time of calling the super bell,
There is a holding party line holding table for superbell calling TBL3 as shown in FIG. 2, which temporarily stores the holding partner line for each terminal that has issued the superbell calling request, and is held and used in the storage unit 15.

Now, the terminal (T0) 2-1 is connected to the trunk circuit (T0).
When attempting to call a super bell from a state in which a call is being made to the line of RK0) 12-1, the caller of terminal (T0) 2-1 first puts on hold the trunk circuit (TRK0) 12-1 that is currently in the call. I do. When the holding operation is performed, the control unit 14 makes a TR as a holding party of the terminal (T0) 2-1 in the holding party line holding table TBL3 for calling the super bell in the storage unit 15.
The information of K0 is temporarily stored.

Next, it is assumed that the caller of the terminal (T0) 2-1 tries to call the user of the selective call receiver registered in the super bell number, for example, "001". In this case, in order to call the super bell for that, the terminal (T0) 2-
Lift the handset of 1 and dial the special number for calling the super bell, and then dial the super bell number "001". Then, the control unit 14 shifts to the control procedure as shown in the flowchart of FIG.

That is, the control unit 14 first reads the calling party (call request source information) corresponding to the dialed super bell number "001" from the super bell call request source information storage table TBL1 (step 20).
1) Make sure that the super bell is not in use (step 202). In other words, the super bell number “00
1 "confirms that another call request source has not already been set. As a result, another person has already called the corresponding selective call receiver with the superbell number" 001 ", If the super bell of "001" is used, the registration cannot be done, and this process is exited.

If another call request source has not already been set for the super bell number "001", the control unit 14 then writes the super bell call request source information storage table TBL1 shown in FIG. Information of the terminal T0 corresponding to the bell number "001" is temporarily stored as call request source information (step 203). With this, when the selective call receiver user with the super bell number "001" designates the super bell number "001" from the nearest telephone terminal to make an incoming call, the call request source can be known. become.

Next, the control unit 14 controls the super bell number "00".
1 ", the selective call receiver subscriber number" 0425-85-3299 "of the corresponding selective call receiver BEL001 is read from the super bell number-call selective call receiver subscriber number information storage table TBL2 of FIG. The station line is captured and the dial information of the selective call receiver subscriber number is transmitted, whereby the selective call receiver BEL001 is called on the station side (step 204).

When the caller of the terminal (T0) 2-1 puts the receiver of the terminal (T0) 2-1 (on-hook), the control unit 14 causes the control line 14 to hold the other party's line at the time of calling the super bell as shown in FIG. From the holding table TBL3, the terminal (T0)
Trunk circuit 12-1 where 2-1 is the registration information of the other party on hold
The registration information TRK0 indicating
5), super bell call request source information storage table TBL
In FIG. 1 (FIG. 4), the information of the other party (call request source) to be called by the "001" superbell is rewritten from T0 indicating the terminal 2-1 up to now to TRK0 (step 206).

Next, when the user of the selective call receiver BEL001 makes a superbell response by calling to the selective call receiver BEL001, he / she calls from the nearest terminal, for example, the terminal (Tn) 2-m. Dial the super bell response special number and the super bell number "001". Then, the control unit 14 recognizes that it is a super bell response from the super bell response special number, and subsequently, based on the super bell number "001", the super bell call request source information storage table TB.
TRK0 indicating the trunk circuit 12-1 which is the calling party (call request source) from L1 to which the super bell number "001" is calling
Information is read (step 207).

Then, the call path switch 11 is controlled to secure a call path between the trunk circuit (TRK0) 12-1 that is on hold and the terminal (Tn) 2-m that has made a superbell response, and the call is released. Ends the process. This enables direct communication between the other party connected to the trunk circuit (TRK0) 12-1 that is on hold and the terminal (Tn) 2-m that has made a superbell response. This eliminates the hassle of taking over telephone calls and enables efficient communication between parties.

Here, since the telephone call between the two becomes possible, the control unit 14 determines the terminal (T0) from the holding party line holding table TBL3 (FIG. 2) when calling the super bell.
T indicating the trunk circuit 12-1 which is the registration information for 2-1
The registration information RK0 is canceled, and the call request source information corresponding to the superbell number "001" is canceled from the superbell call request source information storage table TBL1. The same applies if the party on hold hangs up before the Super Bell response.

The present invention is not limited to the embodiments described above and shown in the drawings, but can be appropriately modified and carried out within the scope of the invention. For example, in the above embodiment, an example in which a super bell response is sent from an extension terminal has been shown. However, if the exchange has a function of accepting a special number from an outside line, the called party who is out of You will also be able to make a bell response.

As described above, this device holds the incoming call of the third party from the extension terminal or the office line and calls the super bell, and after the third party is held, the selective call reception of the intended partner is received. When you call the Super Bell with the Super Bell number corresponding to the machine and hang up before answering the Super Bell, the information of the hold party of the terminal is registered as the request source of the Super Bell, and the Super Bell called party When a response operation (answer special number + superbell number) is performed from the nearest terminal, the above held line as the request source of the superbell is known from the superbell number, and the line and the terminal that responded to the superbell are automatically detected. As a superbell function, when the line of the other party in the call is put on hold and a superbell call is made, the held line is retained as the call request source. , If there is a superbell response, the response is received on the hold line that is the source of the call request, and the call between the two parties is enabled. If you do, the super bell response can be connected to this third party, and it is easy to take over, and it is possible to realize a convenient and easy-to-use super bell function.

[0053]

As described above in detail, according to the present invention, as the superbell function, when the line of the other party who is talking is put on hold and a superbell call is made, the held line is held as a call request source, When there is a superbell response, the response is received on the hold line that is the source of the call request, and it is possible to talk between the two parties. When it is done, the super bell response can be connected to this third party, and it is possible to provide an easy-to-use electronic exchange that is easy to take over and is bothersome and wasteful.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration example of a system of the present invention.

FIG. 2 is a diagram showing an example of a holding party line holding table at the time of calling a super bell used in the system of the present invention.

FIG. 3 is a flowchart for explaining an operation example of a super bell function in the system of the present invention.

FIG. 4 Superbell call request source information storage table TB
The figure which shows an example of L1.

FIG. 5 is a diagram showing an example of a super bell number-call selective call receiver subscriber number information storage table TBL2.

FIG. 6 is a flowchart for explaining an operation example of the super bell function of the conventional system.

[Explanation of symbols]

1 ... Exchanger main body 2-1 to 2-m ... Extension terminal 3-1 to 3-m ... Station line 4-1 to 4-m ... Private line, private line 11 ... Call path switch 12-1 to 12-n ... Trunk circuit 13-1 to 13-m ... Line circuit (subscriber circuit) 14 ... Control unit (central control unit CC) 15 ... Storage unit 17 ... Tone ringer circuit TBL1 ... Superbell call request source information storage table TBL2 ... Superbell number -Call selective call receiver subscriber number information storage table TBL3 ... Super-bell call holding party line holding table.

Claims (1)

[Claims] 1. A selective call receiver subscriber number is set for each subscriber number, and when a call is made from a terminal, a desired super call number corresponding to the selective call receiver is used to call the number. The corresponding selective call receiver subscriber number is sent to the public network to call the selective call receiver. At the same time, the calling terminal is temporarily registered as a caller corresponding to the superbell number, and the superbell number is added. When there is an incoming call using, the electronic switching system with the superbell function that connects to the temporary registration terminal corresponding to the superbell number, has a storage means for registering the superbell caller for each superbell number, and holds the incoming call. When a call is made using the super bell number, the temporarily registered caller information corresponding to the super bell number in the storage means is stored in this holding state. Electronic exchange, characterized in that more configuration and control means for changing the previous information.