JPH06169481A - Electronic exchange - Google Patents

Abstract

PURPOSE:To improve the service by automatically adding full dial information, which is required for call from the called side to the calling side, to calling side dispatch information. CONSTITUTION:When a communication terminal 19 connected to an exchange 1 originates a call in the network where originating number information can be reported, dial information required for the call from the called side to the calling side is selected from a storage means 15, and the originating number is generated in a control part 14. It is automatically reported to communication terminals connected to ISDN networks 4-1 to 4-m or common line signal networks 5-1 to 5-m. The control part 14 searches an idle line of the network by the retrieved or edited originating number and controls call originating of trunk line interfaces 10-1 to 10-n of the idle line. Thus, telephone number information required for dialing from the called side to the calling side can be reported to improve the service.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic exchange used in an exchange system capable of notifying a called party of information of a calling party's telephone number. The present invention relates to an electronic exchange capable of automatically generating full dial information necessary for making a call again to the side and notifying it as information of a calling number.

[0002]

2. Description of the Related Art In addition to public networks, packet networks,
There are various types such as digital networks, ISDN networks, leased lines, etc., and when these lines are contracted and connected to a private branch exchange, the caller can select the line depending on which line is used. Dial the calling number.

On the other hand, in recent years, various communication network systems have been developed with the progress of communication technology and the diversification of communication forms. Among them, the digital integrated service network (IS) is included.
There is a DN; integrated services digital network).
This ISDN comprehensively provides telephone, data, facsimile communication and various communication processing services through a digital communication line. A communication system using this ISDN is configured as shown in FIG. 5, for example.

That is, this system is based on the circuit switching network 211.
A packet communication network 212, a common line signaling network 213, etc. are connected to the digital communication circuit switch 214, and the subscriber line 219 is connected to the network terminating device 218 in the user's house. In the user's house, this network terminating device 218 is connected to the house bus 210. Up to eight communication terminal devices 216 such as a telephone device, a facsimile device, a voice mail device, a printing device, and a personal computer can be connected to the home bus 210. Also, an existing telephone that does not have a function as an ISDN terminal is
It can be used by connecting via a terminal adapter 215 for interfacing with ISDN. And
A desired communication is performed between communication terminal devices by selectively using a plurality of communication channels for each subscriber line 219. For example, with a basic interface with a transmission rate of 192 kbit / s, 64
Two B-channels (information channels) at k bits / second, 16
One k-bit / sec D channel (control channel) is time-division-multiplexed, and data or the like is transmitted using these channels.

By the way, in this ISDN, when a dial call is made from a terminal, the private branch exchange side captures an empty line and sends the dial information to the line. A call setup message including necessary information in a predetermined format including the telephone number information on the side is created and sent to the called side. The called party rings the bell to notify the incoming call. If the called terminal is an ISDN multi-function telephone (electronic key telephone), the caller included in the call setup message on the character display of the ISDN multi-function telephone receives this call setup message. The telephone number information and other information are displayed in characters so that the called party can know where the call came from.

However, in the conventional system, the calling party telephone number inserted in the call setting message at the station side is about the subscriber number and the station number of the calling side terminal. It is not possible to know all the necessary number information when looking at the other side (calling side).

[0007]

[Problems to be Solved by the Invention] In the ISDN network, which is a circuit network having an information channel and a signaling channel, and common line signaling method No. 7 (CCITT recommendation Q.700 series), etc. Information transmission called a call setup message or address is sent to the recipient. As part of the content of this information delivery, the other party's address (other party's subscriber number information) and the calling party's subscriber number information are added. There is. However, the calling party number information, which is the calling party number information in the contents of the delivery information to the called party at the time of this calling, has been conventionally stopped at the subscriber number and station number of the calling party, Could not know all the necessary number information (full dial number) when he saw the other party (calling party) from his terminal.
That is, if you know only the other party's area code and subscriber number, but do not know the area code, etc., when you actually try to call the other party (calling side) later, Only the subscribers are good.

Therefore, there is a function of transmitting information to the called side at the time of calling, and the telephone number information of the calling side can be obtained. The obtained telephone number of the calling side is obtained. Even if the information can be displayed on the display unit of a multi-function telephone, etc., the display content is insufficient, so
You have to ask the other party's phone number, and the other party can answer the number immediately if the phone you used to make the call is your own dedicated phone, but when you are out, or at a hotel, etc., The inconvenience occurs when you don't know unless you ask the people around you or check the phone number book.

[0009] In addition, if the person is limbered, he or she may teach by mistake, which is a problem. Furthermore, there are area codes, country codes, etc. as the telephone numbers, and it may be impossible to immediately determine which number is necessary for the other party, which is an unexpectedly troublesome matter. Therefore, when it becomes necessary to call the caller again from the called side, the calling party's telephone number can be known without the caller's hand having to move. If possible, it is extremely meaningful as a service function.

Therefore, the object of the present invention is to
To provide an electronic exchange capable of automatically adding all the telephone number information necessary for calling the calling side from the called side to the delivery information sent from the calling side at the time of receiving the call. It is in.

[0011]

In order to achieve the above object, the present invention is configured as follows. That is, when a communication terminal that is used by being connected to a circuit-switched network is called, control is performed so that the called party can be switched and connected based on dial information input from the communication terminal, and at least the calling side. In an exchange that allows the calling side to automatically notify the calling party of the subscriber number assigned to the line of the communication terminal as the information of the calling number, it is necessary to make a call to the communication terminal accommodated in this exchange. Necessary for making a call to the communication terminal viewed from the callee based on the dial information input from the communication terminal when calling the communication terminal accommodated in the exchange and the table storage means in which the dial information is registered. The dialing information is selected from the table storing means and used as the calling number information.

[0012]

The present apparatus having the above-described structure is divided into, for example, each network type by using the country code, area code, local code, subscriber number, etc. of a communication terminal such as a telephone accommodated as the calling number information. Then, when the caller dials from the above communication terminal, the dial information of the connection destination is analyzed and the signal is transmitted when the caller dials from the communication terminal, such as network type, local call, long distance call, international call, etc. The full dial information necessary for calling the communication terminal on the calling side as seen from the called side is obtained by referring to the table storing means, and this is edited as the information of the calling number. To notify.

As described above, in this system, the line used is IS.
In the case of a network that can use information channels and signaling channels, such as a DN network or a common line signaling network, it is possible to send data to the other party and display it. Since the information of the full dial number, which is necessary when making a call to the caller, is automatically generated and transmitted as the information of the calling number, the called party receives the call sent from the calling party. By receiving the number information, it is possible to know the dialed number information necessary for dialing the other party. Therefore, the conventional calling number notification such as only the local area code and subscriber number is not enough. From the point of view of long-distance callers and international callers, it is possible to notify calling number information that is truly useful, and it is possible to improve services.

[0014]

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 schematic configuration diagram of an electronic exchange showing an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram of essential parts showing the embodiment of the present invention. In FIG. 1, reference numeral 1 is an exchange main body, 2-1 to 2-m are standard terminals such as telephones and electronic key telephones, and 4-1 to 4-m are information such as ISDN network and common line signaling network. It is a line network having channels and signal channels, but here, as an example, a station line of an ISDN network is used. In addition, 19-1 to 19-n are electronic key telephones for ISDN, 20 is IS
Facsimile with DN interface function, 21
Data terminals such as personal computers having an interface function for ISDN, 5-1 to 5-m are public network office lines.

The exchange main body 1 accommodates extension terminals and office lines,
Exchange connection between extension lines, between extension line and outside line, etc., switching circuit 11, station line interface such as ISDN station line interface and common line signaling system interface 10-1 to 10-
m, office line trunk circuit 12-1 to 12-m, line circuit 13-1 to 13-
m, control unit 14, storage unit 15, digital interface 1
7. ISDN terminal interface 16-1 to 16-n. 6
Is a maintenance terminal.

The exchange circuit 11 is for performing exchange connection between the extension lines or between the extension line and the outside line (station line) and from the outside line to the extension line, and the control section 14 controls the exchange operation of the exchange circuit 11 and the device. It controls various controls of the whole.
The storage unit 15 stores various control programs and various tables of the control unit 14 and data such as set function contents, and also has a function as a database and the like. The maintenance terminal 6 is used to change various tables and function contents stored in the storage unit 15 or database contents, data change / addition / deletion, etc., and program change, etc. It has a keyboard and a character display device. The digital interface circuit 17 serves as an interface for signals between the maintenance terminal 6 and the control unit 14.

Each of the line circuits 13-1 to 13-m is a connection interface provided for each extension and serves as an extension connection interface between the exchange circuit 11 and each extension terminal. The office line trunk circuits 12-1 to 12-m interface with the switching circuit 11 and the corresponding office lines 5-1 to 5-m of the public network, and also a DC loop for detecting an incoming call and capturing a line. This is a circuit for closing and closing. In addition, although not shown, a tone transmission circuit is connected to the exchange circuit 11 so that various signal sounds such as telephones can be transmitted. The ISDN office line interfaces 10-1 to 10-m are interfaces for connecting to the ISDN network and exchanging control signals and information with the ISDN network, and ISDN terminal interfaces 16-1 to 16-n. Is a circuit that interfaces with ISDN terminals such as the electronic key telephones 19-1 to 19-n, the facsimile 20 and the personal computer 21.

These constituent elements in the exchange main body 1 are
The line circuits 13-1 to 13-m and the office line trunk circuits 12-1 to 12 are connected to the control unit 14 via a control line and a data bus line 18, and are stored in the storage unit 15 in accordance with a control program stored in advance.
-m or ISDN terminal and ISDN office line interface 10-1 to 10
It controls so that the communication path between -m is formed and enables the normal exchange operation.

Further, according to the present invention, all telephone numbers (full dial numbers) necessary for making a call by connecting to the called terminal of the called party from the called side are examined, automatically generated and edited,
It is characterized in that it has a function that it is inserted into the call setup message as the telephone number information of the calling side.

Therefore, as shown in FIG. 2, the control unit 14 determines, based on the dial information received from the calling communication terminal,
The network type used to communicate from the calling side to the called side is determined, as well as the domestic / international call, and if it is a domestic call, the local / local call is determined. Based on the determination information of the result determined by the unit 14a, the network type determination unit 14a, the used line is a network such as an ISDN network or a common line signaling network that can use an information channel and a signal channel. In this case, a calling number editing unit 14b is provided for checking and editing the information of the full dial number necessary for making a call from the called side to this calling side in the reverse order. The storage unit 15 is provided with a conversion table (calling number table) necessary for obtaining the information of the full dial number.

Further, the electronic key telephone 19 for ISDN
-1 to 19-n has a character display part, and has a function of displaying the message content in the call setting message, which is the delivery information to the called side at the time of calling, on the character setting part. The calling party's telephone number information (full dialed number information) can be displayed.

In the present system having such a configuration, when there is an incoming call from an outside line, the control unit 14 causes the office line trunk circuits 12-1 to 12-12.
-m, detects an incoming call from the station line interface 10-1 to 10-n,
The incoming call is made to the extension terminal set as a representative or an extension grouped with respect to the outside line. Then, the communication path is secured by the response of the extension terminal, and the communication between the two is enabled.

A call from an extension line to an outside line is dialed by an extension terminal, and the control unit 14 dials the call. Based on the input dial information, the network type determination unit 14a uses the dial information. Based on, the connection destination is analyzed and the network to be used is determined.

Based on the result, a vacant station line connected to the corresponding network is searched for, a call path is secured using the interface of the vacant station line, and a dial call is made to the central office exchange. For example, if the network to be used is dial information indicating a public network, a free one of the office line trunk circuits 12-1 to 12-m is searched for and a call path is secured by using this free office line trunk circuit. , Dial a call to the central office. Then, it becomes possible to communicate when connected to the other party via the central office. Between extensions, an extension number is received from a calling extension, an incoming call is controlled for a line circuit of the extension number, and a connection terminal of the line circuit responds to secure a communication path and enable communication. When one of the terminals is cut off, the call control is performed and the communication path is cut off.

On the other hand, if the call is to the ISDN network,
The number necessary for making a call to the ISDN network, the area code and the subscriber number are dialed, and this dial information is sent from the connected communication terminal to the control unit 14 via the ISDN terminal interface. The network type determination unit 14a analyzes the connection destination based on this dial information, determines the network to be used, and gives the result to the calling number editing unit 14b. Then, the calling number editing unit 14b edits the calling number for each network type by referring to the calling number table 15a based on the network type obtained by the network type determining unit 14a.

The calling number table 15a is, for example, as shown in FIG. 3, and is a subscriber number with an extension number and a local area code of a communication terminal such as a telephone connected to an exchange, an area code and a local area code. The subscriber number with the area code, the country code and the area code and the subscriber number with the local area code are registered. Since the control unit 14 can recognize which extension the calling communication terminal belongs to, the control unit 14 can search for and find the corresponding registration item of this extension.

Therefore, the network type etc. determination unit 14a determines the network type from the dial information received from the calling communication terminal, determines the domestic call / international call, and if it is the domestic call, the local call / intercity call. Then, when the judgment result is given to the calling party number editing unit 14b, the calling party number editing unit 14b determines that the used line is an information channel such as an ISDN network or a common line signaling network based on the given judgment information. If it is a network that can use the signal channel and the signal channel, the calling number table 15a is searched, the registration number corresponding to the network type is read, and editing is performed.

FIG. 4 shows a network type determination unit 14 in the control unit 14.
7 is a flowchart showing an operation example of a and the calling number editing unit 14b. The operation will be described with reference to this flowchart. When a dial call is issued from the communication terminal, the network type determining unit 14a first determines the network type based on the dial information received (ST1). If the result of this determination is that the line is a leased line, the number corresponding to the leased line network is searched (ST6), the station code of the exchange in the leased line network is added to the retrieved calling number, and the number is sent to the leased line network. Edit number
(ST7). If the result of the judgment in ST1 is that it is a station line network, the calling number according to the station line network is searched (ST2) and domestic / domestic determination is made (ST3). If the result of this determination is that it is an international network, the country code and area code are added to the retrieved calling number and the calling number sent to the international network is edited (ST4, ST5). ST
If the result of the determination in 3 is that it is a domestic network, the outside / inside of the city is determined (ST8).

Then, as a result of the judgment, if it is an area line, the area code is added to the retrieved calling number and the calling number sent to the area network is edited (ST9). If the result of the judgment in ST8 is that it is the local office line network, the retrieved calling number is sent as it is to the local office line network.

When the control unit 14 obtains the retrieved calling number or the edited calling number, it searches for a vacant line in the network determined by the dial information, and station line interfaces 10-1 to 10- of the vacant line. Call control is performed for n.

When connected to the central office, the retrieved calling number is sent to the central office as message information of the originating number, and the central office inserts this message information into delivery information such as a call setup message to receive the call. It sends to the side with the calling signal. Therefore, on the called side, the bell is rung by this calling signal, and the insertion information is displayed on the display section of the called communication terminal based on the delivery information. As a result, the called communication terminal displays the full dial number required for dial connection to the calling side.

For example, when the called side makes a long distance call from the calling side, the area code, local area code and subscriber number of the calling side are displayed, and the called side as seen from the calling side. In the case of a local call, the local number and subscriber number of the calling side are displayed, and when the called side from the calling side is a foreign call,
The country code, area code, local code, and subscriber number of the calling side are displayed. Of course, when the network type number is required, the network type number is also notified. If the other party responds, the central office secures a communication path for both parties and enables communication. When one of the terminals is cut off, the call control is performed and the communication path is cut off.

As described above, in this system, the number dialed by the caller from the communication terminal such as a telephone is analyzed to determine the network type for transmitting a signal. The country code and the area code are added to the calling number obtained by referring to the calling number table in the case of an international network. If it is a domestic network, the outside / inside area determination is performed, and if it is a local network, the calling number table is referred to and the area code is added to the obtained number. If it is a local network, the number obtained by referring to the calling number table is sent as it is. If the obtained network type is a leased line network, the exchange station code in the leased line network is added and transmitted. Since this is done, calling number information can be transmitted according to the network type,
As a result, it becomes possible to provide a service such as displaying the calling number according to the network type on the other party's telephone.

As described above, in this system, the line used is IS.
In the case of a network that can use information channels and signaling channels, such as a DN network or a common line signaling network, it is possible to send data to the other party and display it. Since the information of the full dial number, which is necessary when making a call to the device, is automatically generated and transmitted as the information of the calling number, the called side sends it from the calling side. By receiving the information of the calling party number, it is possible to know the dialed number information necessary for dialing the other party. Therefore, the conventional calling party number notification such as only the local area code and the subscriber number is not available. From the point of view of long-distance callers and international callers who were sufficient, it is possible to notify the calling number information that is truly useful, and it is possible to improve the service.

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 not changing the gist of the present invention. Any network can be applied as long as it can notify and display data. Further, in ISDN, a user can set an arbitrary unique subaddress to a communication terminal, and if a call is made as dial information including this subaddress, the communication terminal can be called. However, in the present invention, this subaddress is used. It is also possible to notify the calling party number information including the above. Also,
As an example, I prepared a full dial number for international calls, a full dial number for local calls, a full dial number for long distance calls, etc., and made a search. It is also possible to register from the area code to the subscriber number, extract the necessary parts, edit them, and use them as the calling number information.

[0036]

As described in detail above, according to the present invention, the telephone number information required when the other party dials himself / herself is automatically notified to the network capable of notifying the calling party number information. Since it is possible, it is possible to notify the calling party number that is useful, and it is possible to improve the service.

[Brief description of drawings]

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

FIG. 2 is a configuration diagram of a main part of the device of the present invention.

FIG. 3 is a diagram for explaining an example of a calling number table used in the device of the present invention.

FIG. 4 is a diagram showing an operation flow of a main part in the device of the present invention.

FIG. 5 is a diagram for explaining an ISDN network.

[Explanation of symbols]

1 ... Electronic exchange 2-1 to 2-m ... Extension telephone 4-1 to 4-m ... ISDN network office line 5-1 to 5-m ... Public network office line 6 ... Maintenance terminal 11 ... Exchange circuit 10 -1, to 10-m ... Station line interface 12-1, to 12-m ...
Trunk circuit 13-1 to 13-m ... Line circuit 14 ... Control unit 14a ... Network type determination unit 14b ... Calling number editing unit 15 ... Storage unit 15a ... Calling number table 19-1 to 19-n ... Electronic key telephone .

Claims (1)

[Claims] 1. When making a call to a communication terminal which is used by connecting to a circuit switching network and accommodated, control is performed so as to switch connection to a called party based on dial information input from the communication terminal, and at least In an exchange that allows the calling side to automatically notify the calling party of the subscriber number assigned to the line of the calling side communication terminal as information of the calling number, the communication terminal accommodated in this switching machine is called. Table storage means for registering necessary dial information, and when a communication terminal accommodated in the exchange is called, the communication terminal viewed from the called party is called based on the dial information input from the communication terminal. An electronic exchange characterized in that it comprises dialing information required for the selection from the table storing means to create the calling number information.