JP6414437B2 - Telephone control device and park hold control method - Google Patents

Description

  The present invention provides a telephone system for realizing a so-called park hold function between telephone control apparatuses in a telephone system formed by connecting a plurality of telephone control apparatuses that accommodate a plurality of telephone sets (telephone terminals) through a wide area network. The present invention relates to a device and a park hold control method.

  For example, in a so-called button telephone system (business phone system) formed by connecting a plurality of telephones to a telephone control device called a SIP server or a main device in an office, a park hold function has been conventionally used as a convenient function. Is provided. As explained in Patent Document 1 and the like described later, the park hold function allows the other party to hold the call by pressing the “park hold button” during a call, and cancels the hold from another telephone to make a call. It is a function that can resume.

  That is, the park hold function places a call line connected to the park hold button on hold by pressing a park hold button provided in common for each telephone during a call. And the park hold function connects the arbitrary phone and the call line that has been put on hold when the park hold button in which the call line is put on hold is operated on any phone, The call can be taken over through the arbitrary telephone.

  As described above, the park hold function is a function that is convenient when a call is made to a partner at a distant seat, and is a function that is used when there are a plurality of telephones in an office. As described above, the park hold function assigns (sets) a call line to be put on hold to the park hold button, and does not hold the operation button determined for each telephone number. For this reason, in the key telephone system, by making a common park hold button, it is possible to effectively use the limited operation buttons provided on the telephone and smoothly perform the hold transfer within the office.

JP-A-5-252557

  In recent years, for example, a telephone system can be constructed over a wide area (wide area) by connecting the key telephone systems built at the Tokyo head office, Kansai branch office, and Tohoku branch office via a wide area network. To be done. The wide area network includes various communication networks (networks) formed in a wide range such as a telephone network, an optical communication network, and an IP (Internet Protocol) network. By constructing a telephone system in a wide area in this way, it is possible to make an extension call between the geographically distant button telephone systems at low cost or without incurring a call charge.

However, the park hold function described above remains a function within the same button telephone system. For example, for a telephone line held by the key telephone system A at the Tokyo head office, it is not possible to cancel the call from the key telephone system B at the Kansai branch office (respond to the hold) and take over the call. The park hold function must be controlled so that a call line to be held is held with respect to a park hold button that is commonly used in all telephones in the telephone system. However, in a wide-area telephone system in which a plurality of telephone control devices that accommodate and control a plurality of telephones exist, control between the button telephone systems for the park hold function is complicated. It has not been realized.

  In view of the above, the present invention enables a park hold function to be used easily and reliably between button telephone systems in a so-called wide area telephone system constructed by connecting a plurality of button telephone systems. With the goal.

In order to solve the above-mentioned problem, a telephone control device according to claim 1 is provided.
A plurality of telephone control devices capable of accommodating one or more telephone terminals having a park hold button are the telephone control devices of the telephone system configured to be connected through a wide area network,
In order to connect a communication path with another telephone control device through the wide area network, and to enable a call between the telephone terminal accommodated in the other telephone control device and the telephone terminal accommodated in the own device. System information storage means for storing the system information of
By operating the park hold button, the park hold button specifying information for specifying the operated park hold button, the hold operation source specifying information for specifying the execution source of the park hold for which the park hold button has been operated, and the park hold button are operated. Park hold information storage means for storing hold line specifying information for specifying a call line put on hold;
A park hold setting request including the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information transmitted from the other telephone control device of the telephone system through the wide area network is received. A setting request receiving means;
When the park hold setting request is received through the setting request receiving means, the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information included in the park hold setting request are included in the park. First setting means for setting the hold information storage means ;
When receiving the park hold setting request through the setting request receiving means, for each of the telephone terminals accommodated in the own device, for the park hold button specified by the park hold button specifying information of the park hold setting request First setting display control means for displaying that the call line is set to the hold state;
In the telephone terminal accommodated in the device, when the park hold button in which the call line is set to the hold state is operated in response to the park hold setting request, the operated park hold provided from the telephone terminal is operated. A response notification receiving means for receiving a park hold response notification including the park hold button specific information corresponding to the button;
When the park hold response notification is received through the response notification receiving means, it is specified by the telephone terminal accommodated in the own device that has transmitted the park hold response notification and the setting information of the park hold information storage means. Response processing means for connecting a call line placed on hold and enabling a call.

  According to the telephone control device of the first aspect of the present invention, the telephone control device can be configured through a wide area network to constitute a telephone system over a wide area. The telephone control device connects a communication path to another telephone control device through a wide area network, and is so-called between a telephone terminal accommodated in the other telephone control device and a telephone terminal accommodated in the own device. System information for enabling an extension call is stored in the system information storage means. The system information includes the IP address and number plan of the own device and other telephone control devices. In addition, the telephone control device includes a park hold button specifying information, a hold operation source specifying information, a hold line specifying information, and a phone terminal under the control of a different phone control device. Is provided with park hold information storage means.

The telephone control device sets a park hold setting request from another telephone control device of the telephone system formed by connecting the communication path through the wide area network by using the system information in the system information storage means. Receive through request receiving means. The park hold setting request includes park hold button specifying information, hold operation source specifying information, and hold line specifying information. When the telephone control device receives the park hold setting request through the setting request receiving means, the first setting means receives the park hold button specifying information, the hold operation source specifying information, the hold line specifying, included in the park hold setting request. Information is set in the park hold information storage means .

  In addition, the telephone control device, for each of the telephone terminals accommodated in its own device, the first setting display control means for the park hold button specified by the park hold button specifying information of the received park hold setting request Display that the call line is set to hold. Accordingly, it is possible to intuitively recognize visually through which park hold button the call line is set to the hold state.

  When the park hold button whose call line is set to the hold state is operated, the phone terminal accommodated in each of the telephone control devices operates the park hold response including the park hold button specifying information corresponding to the operated park hold button. The notification is transmitted to the telephone control device that houses the device. In the telephone control device, a park hold response notification from a subordinate telephone terminal accommodated by the own device is received through the response notification receiving means.

  When the telephone control device receives a park hold response notification from a subordinate telephone terminal through the response notification receiving means, the response processing means functions. In this case, the response processing means can grasp which telephone terminal is accommodated in the own terminal that has transmitted the park hold response notification. In addition, the response processing means of the telephone control device determines which call line of which button telephone system the call line put on hold is based on the hold line specifying information of the park hold setting information set for the operated park hold button. You can see if it is a line.

  For this reason, the response processing means performs predetermined processing such as issuing a response request to the button telephone system that holds the call line that is put on hold. As a result, the phone terminal accommodated in the own device that sent the park hold response notification and the hold state specified by the hold line specifying information of the park hold setting information set in the operated park hold button are set. The call line is connected to enable a call. That is, the park hold function between the key telephone systems is realized.

  According to the present invention, in a so-called wide area telephone system constructed by connecting a plurality of button telephone systems, use of the park hold function can be realized between the button telephone systems.

It is a block diagram for demonstrating the structural example of a telephone system. It is a block diagram for demonstrating the structural example of the main apparatus 1 which is a telephone control apparatus. 4 is a diagram for explaining an example of data stored in an address data storage unit 106. FIG. It is a figure for demonstrating the example of the stored data of the number plan data storage part. It is a figure for demonstrating the example of the storage data of the park holding | maintenance memory 140. FIG. 4 is a block diagram for explaining a configuration example of a telephone 2. FIG. 2 is an external view of a telephone 2. FIG. It is a sequence diagram for demonstrating operation | movement (process) in the case of connecting a communication channel via IP network 200A between master main apparatus 1A and slave main apparatus 1B. FIG. 11 is a sequence diagram for explaining an operation (processing) when an extension call is placed from the telephone 2A (1) under the master main apparatus 1A to the telephone 2B (1) under the slave main apparatus 1B. It is a figure for demonstrating the other structural example of a telephone system. It is a sequence diagram for demonstrating the process from execution of the park holding | maintenance function of 1st Embodiment to completion | finish. FIG. 12 is a sequence diagram following FIG. 11. It is a sequence diagram for demonstrating the process from execution of the park holding | maintenance function of 2nd Embodiment to completion | finish. FIG. 14 is a sequence diagram following FIG. 13.

  Embodiments of the apparatus and method of the present invention will be described below with reference to the drawings. The apparatus and method of the present invention are provided in a telephone system in which main apparatuses (telephone control apparatuses) installed at geographically distant locations are connected through a wide area network such as a telephone network or an IP network. A function can be realized. In the following, before specifically describing the park hold function, first, the formation of a wide-area telephone system will be specifically described.

[Example of telephone system configuration]
FIG. 1 is a diagram for explaining a configuration example of a telephone system. As shown in FIG. 1, the telephone system in this example has a main device (telephone control) installed at geographically distant locations such as head office (Tokyo), branch office 1 (Tohoku), branch office 2 (Kansai),. (Devices) 1A, 1B, 1C,... Are connected by a wide area network 200 including an IP network 200A and a telephone network 200B.

  In FIG. 1, an IP network 200A means a network through which data packetized according to the Internet protocol is transmitted and received, and is mainly the Internet. The telephone network 200B is provided by a telephone company or the like such as a public switched telephone network, a mobile telephone network, an optical telephone network, and includes various communication networks for telephone communication that will be provided in the future.

  The main apparatus 1A has telephones 2A (1), 2A (2),..., The main apparatus 1B has telephones 2B (1), 2B (2),..., And the main apparatus 1C has telephones 2C (1), 2C. (2),... Are connected through a LAN (Local Area Network). As a result, at the head office and each branch office, a key telephone system is configured by the main apparatus and the telephone connected to the LAN.

  In this specification, for example, a button telephone system at a head office or a button telephone system at a branch office, for example, a system related to a telephone formed on the same premises with one main device as a connection end to the wide area network 200 is buttoned. It is called a telephone system. A system related to a telephone formed over a wide area by connecting a plurality of main devices 1A, 1B, 1C,... Through the wide area network 200 is simply referred to as a telephone system.

  In this telephone system, the main apparatus 1A installed in the head office is used as a master main apparatus (master telephone control apparatus), and the main apparatuses 1B, 1C,... Installed in each branch office are used as slave main apparatuses (slave telephone control apparatuses). ). When each of the main apparatuses 1A, 1B, 1C,... Accesses the telephone company ISP (Internet Service Provider) for the first time, an IP address is assigned by the ISP server, and connection to the IP network 200A is made. An environment is possible.

  In this embodiment, in order to simplify the description, the main apparatuses 1A, 1B, 1C,... Do not change even when the connection to the IP network 200A is cut off, for example, by turning off the power. It is assumed that a fixed IP address is assigned. Of course, a dynamic IP address can also be used. However, when a dynamic IP address is used, it is necessary to re-establish a connection of a communication path through the IP network 200A by making a connection request to the telephone system described later every time the dynamic IP address changes. Arise.

  And only by assigning IP addresses to the main apparatuses 1A, 1B, 1C,..., The main apparatuses cannot be connected through the IP network 200A. The main devices that connect the communication path through the IP network 200A need to know each other's IP address. This is because the communication path specifying the other party cannot be connected unless the other party is known.

  Therefore, in the telephone system of this embodiment, for the slave main unit that has not established a communication path connection with the master main unit 1A through the IP network 200A, the IP address of the master main unit 1A is set. sign up. The master main apparatus 1A is accessed (logged in) from the slave main apparatus through the IP network 200A using the IP address of the master main apparatus registered in advance, and the IP address of the slave main apparatus is provided to the master main apparatus 1A And request a connection. As a result, the master main apparatus 1A can acquire and store the IP address of the slave main apparatus that is the connection request source, and can connect a communication path between the slave main apparatus and the master main apparatus 1A. .

  Further, the master main apparatus 1A provides the IP address of another slave main apparatus that has already connected the communication path through the IP network 200A to the slave main apparatus that is the connection request source. Further, the master main apparatus 1A provides the IP address of the slave main apparatus that is the connection request source to other slave main apparatuses that are already connected to the communication path through the IP network 200A other than the connection request source. . As a result, communication paths can be mutually connected through the IP network 200A between the slave main units through the IP network 200A. In this way, communication paths can be connected between the main apparatuses through the IP network 200A so that a call can be made through the IP network 200A.

  The connection of the communication path between the slave main apparatuses may be performed by accessing the other slave main apparatus through the IP network 200A from the slave main apparatus of the current connection request source and connecting the communication paths. Of course, the slave main apparatus other than the current connection request source may access the slave main apparatus of the current connection request source through the IP network 200A and connect the communication path.

  However, if there are a plurality of slave main devices already connected to the master main device 1A through the IP network 200A, a plurality of connection requests are made to the slave main device of the current connection request source. It can also occur at the same time. Therefore, in order to prevent the connection request from being generated at the same time as the connection request source slave main unit, a method of accessing the other slave main unit from the connection request source slave main unit is proposed. Use it.

  Further, simply connecting the communication paths between the main devices through the IP network 200A, for example, from the telephone 2A (1) accommodated in the master main apparatus 1A to the telephone 2B (1) accommodated in the slave main apparatus 1B. ) Can't make an extension call. In other words, each main device cannot realize an extension call between the button telephone systems unless it knows the numbering plan for all main devices belonging to the same telephone system including its own device.

  In order to allow the user to make an extension call without distinguishing between each key telephone system, it is necessary to set a numbering plan in a closed number system. The closed number system is an extension number that does not overlap even part of the extension number used in each key telephone system, except for the so-called extension special number (extension special number) that can be commonly used in each key telephone system. Is a method for setting. An extension special number (extension special number) means a number for a different use from a normal extension number.

  Thus, in this embodiment, when the connection request source slave main unit does not have a number plan, the master main unit 1A assigns a number plan to the connection request source slave main unit. In this case, the master main device 1A notifies the other slave main devices of the assigned numbering plan so that the slave main devices can also register.

  In addition, when the connection request source slave main unit has a numbering plan, the master main unit 1A receives the provision of the numbering plan and determines whether or not it can be used in the telephone system. As a result of the determination, if the use is possible, the use of the numbering plan is permitted to the slave main apparatus that is the connection request source. The master main unit 1A also registers the number plan received from the connection requesting slave main unit and notifies the other slave main unit of the number plan. Enable registration.

  If the numbering plan provided by the slave device that requested the connection cannot be used because it overlaps with the numbering plan of other button telephone systems, the use of the numbering plan is prohibited and the master The main apparatus 1A assigns a new numbering plan to the slave main apparatus that is the connection request source. In this case, the master main apparatus 1A notifies the other slave main apparatus of the assigned new numbering plan so that it can be registered in the other slave main apparatuses.

  As described above, in the telephone system of this embodiment, the master main apparatus 1A functions as a management apparatus in the telephone system, and address data such as an IP address without bothering a construction worker or a user. Distribute necessary system information such as data and numbering plan data. As a result, not only an outside line call or an extension call in a key telephone system, but also a communication path can be connected between each main unit through the IP network 200A, and an extension call can be made between key telephone systems. Yes.

[Configuration example of main devices 1A, 1B, 1C, ...]
Next, a configuration example of the main devices 1A, 1B, 1C,... Of each key telephone system connected through the wide area network 200 will be described. Each of the main devices 1A, 1B, 1C,... Has the same configuration and can be a master main device or a slave main device. Therefore, in the following, each of the main devices 1A, 1B, 1C,... Will be collectively referred to as the main device 1 unless otherwise indicated.

  Also, telephones 2A (1), 2A (2), ... connected to the main apparatus 1A, telephones 2B (1), 2B (2), ... connected to the main apparatus 1B, telephones connected to the main apparatus 1C 2C (1), 2C (2),... Are also collectively referred to as the telephone 2 unless otherwise indicated. Further, when the telephones 2A (1), 2A (2),... Connected to the main apparatus 1A are collectively referred to as the telephone 2A, the telephones 2B (1), 2B (2) connected to the main apparatus 1B are described. ),... May be described as the telephone 2B, and the telephones 2C (1), 2C (2),... Connected to the main device 1C may be collectively referred to as the telephone 2C. .

  FIG. 2 is a block diagram for explaining a configuration example of the main apparatus 1. The main device 1 functions as a so-called SIP (Session Initiation Protocol) server. The main device 1 is capable of connecting a communication line through the IP network 200A and the telephone network 200B and controlling each of the telephones 2 accommodated in the own device. As shown in FIG. 2, the main apparatus 1 includes a connection terminal 101 to the IP network 200 </ b> A, an IP network interface (hereinafter abbreviated as IP network I / F) 102, and a packet disassembly / generation unit 103. .

  The main apparatus 1 includes a telephone network interface (hereinafter abbreviated as a telephone network I / F) 104 and a connection terminal 105 to the telephone network 200B. The main device 1 also includes an address data storage unit 106, a number plan data storage unit 107, and a master information memory 108. Further, the main apparatus 1 includes a LAN interface (hereinafter abbreviated as LAN I / F) 109, a connection terminal 110 to the LAN, an external interface (hereinafter abbreviated as external I / F) 111, and an external terminal. 112 and a control unit 120.

  The control unit 120 controls each unit of the main apparatus 1, and although not shown, a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), a nonvolatile memory, and the like are connected through a system bus. It is a connected microprocessor. The control unit 120 also functions as a determination unit that determines the connection status of the communication path and determines whether a numbering plan such as an extension number from the slave main apparatus can be appropriately used.

  The connection terminal 101 constitutes a connection end to the IP network 200A. The IP network I / F 102 receives a packet supplied through the IP network 200A, converts it into a packet in a format that can be processed by itself, and supplies the packet to the control unit 120. The IP network I / F 102 converts a packet to be transmitted supplied through the control unit 120 into a packet in a transmission format, and sends this to the IP network 200A.

  Connection terminal 105 constitutes a connection end to telephone network 200B. The telephone network I / F 104 receives data (information) supplied through the telephone network 200 </ b> B, converts it into data in a format that can be processed by itself, and supplies the data to the control unit 120. In addition, the telephone network I / F 104 converts data to be transmitted supplied through the control unit 120 into data in a transmission format, and transmits the data to the telephone network 200B.

  The connection terminal 110 constitutes a connection end to the LAN. The LAN I / F 109 receives a packet supplied through the LAN, converts it into a packet in a format that can be processed by the own device, and supplies the packet to the control unit 120. Also, the LAN I / F 109 converts a packet to be transmitted supplied through the control unit 120 into a packet in a transmission format, and sends this to the LAN.

  The external terminal 112 constitutes a connection end with an external device such as a PC (Personal Computer). The external I / F 111 receives data from an external device such as a PC connected to the external terminal 112, converts it into data in a format that can be processed by the own device, and supplies the data to the control unit 120. In addition, the external I / F 111 converts data to be transmitted to an external device connected to the external terminal 112 supplied through the control unit 120 into data in a format for transmission, and transmits this to the external device.

  The packet decomposition / generation unit 103 performs packet decomposition and generation. Specifically, a packet to be transmitted from the telephone set 2 connected to the main apparatus 1 through the LAN to the terminal apparatus connected to the telephone network 200B is received by the control unit 120 through the connection terminal 110 and the LAN I / F 109. . The packet is supplied from the control unit 120 to the packet decomposition / generation unit 103, where the packet is decomposed and then sent to the telephone network 200B through the control unit 120, the telephone network I / F 104, and the connection terminal 105. Sent to the other party.

  Data from the terminal device connected to the telephone network 200B to the telephone 2 connected to the main device 1 through the LAN is received by the control unit 120 through the connection terminal 105 and the telephone network I / F 104. The data is supplied from the control unit 120 to the packet disassembly / generation unit 103, where the packet is converted into a packet of a predetermined format, and then sent to the LAN through the control unit 120, the LAN I / F 109, and the connection terminal 110, and Is transmitted to the telephone 2 to be operated.

  Packets are transmitted and received between the terminal connected to the IP network 200A and the telephone set 2 connected to the main apparatus 1 through the LAN. For this reason, the packet decomposition / generation unit 103 does not perform packet decomposition or generation, and the IP network I / F 102 and the LAN I / F 109 transmit and receive the packet as it is. Similarly, packets are transmitted and received between the telephones 2 in the same button telephone system connected to the main apparatus 1 through the LAN. Therefore, also in this case, the packet decomposition / generation unit 103 does not perform packet decomposition or generation, and transmits / receives packets through the LAN I / F 109.

  The address data storage unit 106 is connected to the IP network 200A in order to realize the registrar server function, and stores and holds address data about the own device and other main devices that may be called through the own device. FIG. 3 is a diagram for explaining an example of stored data (address data) stored in the address data storage unit 106. As shown in FIG. 3, in this embodiment, the address data storage unit 106 stores data of group ID, password, IP address, system number, system name, and priority order.

  The group ID and password are for the telephone system of this embodiment configured by connecting a plurality of main devices 1. The group ID is for enabling a plurality of telephone systems configured by connecting a plurality of main apparatuses 1 to be managed separately. The password is used for authentication as to whether or not the accessing external device is accessible to the telephone system. These group IDs and passwords are input through a PC connected through the external I / F 111 and the external terminal 112 of the main apparatus 1 and written in the corresponding area of the address data storage unit 106.

  The IP address, system number, system name, and priority data are a series of address data for the main device 1 and the main device 1 that has transmitted a connection request to the own device. The IP address is information indicating the location of the own device on the IP network 200A, and the system number and the system name are information for distinguishing each of the key telephone systems. The priority order indicates the order in which each main device becomes the master main device. The main device having the highest priority at this time is the master main device, and the other main devices are slave main devices. .

  The first registered IP address, system number, system name, and priority in the address data storage unit 106 relate to the own device. Among them, the IP address is the ISP address when the telephone server ISP server provided on the IP network 200A is first accessed through the IP network I / F 102 and the connection terminal 101 under the control of the control unit 120. It is given from the server.

  The system number, the system name, and the priority order are basically assigned to the main device belonging to the same telephone system, including the master device. For this reason, in the master main apparatus, the system number, the system name, and the priority order inputted through the PC connected through the external I / F 111 and the external terminal 112 are registered and used.

  The IP address, the system number, the system name, and the priority order registered in the second and subsequent addresses in the address data storage unit 106 relate to other main devices belonging to the same telephone system. For example, when the main apparatus 1 is a master main apparatus, when a connection request (registration request) is received from another main apparatus via the IP network I / F 102, the IP address included in the connection request is stored in the address data storage unit. 106 is registered.

  Furthermore, the control unit 120 of the master main device 1 assigns a system number, a system name, and a priority order to the main device that is the connection request source, and this is stored in the address data storage unit 106 of the main device that is the connection request source. be registered. When the main device 1 is a slave main device, the IP address, system number, system name, and priority of another main device provided from the master main device via the IP network I / F 102 are address data. Registered in the storage unit 106.

  In this way, the information registered and managed in the address data storage unit 106 is referred to, and the button telephone system of the other party requested from the telephone connected to the own machine through the LAN can be specified. To be done. Then, the main apparatus 1 can realize a function as a proxy server that transfers information (packet data) to be transmitted to the specified partner.

  The numbering plan data storage unit 107 stores numbering plan data of extension numbers assigned to each key telephone system. The numbering plan data can also be set independently in each key telephone system. However, as described above, in the telephone system of this embodiment, the numbering plan of each button telephone system adopts a closed number system in which extension numbers do not overlap even in a part of them except for extension special numbers. . For this reason, the numbering plan data is stored and managed in the master main unit by storing the numbering plan data that has already been distributed and the numbering plan data that can be distributed.

  FIG. 4 is a diagram for explaining an example of data stored in the numbering plan data storage unit 107. As shown in FIG. 4, the data stored in the numbering plan data storage unit 107 (numbering plan data) includes a system number, a numbering plan, and a distributed flag (denoted as FLG in FIG. 4). In the case of the example shown in FIG. 4, an extension number in the 1000s and a number in the 9000s are assigned as special numbers to the button telephone system with the system number “001” as a numbering plan.

  In addition, the extension number of 2000 series and the number of 9000 series are assigned as a special number to the button telephone system with the system number “002” as a numbering plan. Further, an extension number of the 3000 series is assigned as a numbering plan and a number of the 9000 series is assigned as a special number to the button telephone system having the system number “003”. In the case of the numbering plan data shown in FIG. 4, the numbering plan data for the button telephone systems with the system numbers “001” and “002” has already been distributed, and the button numbering system with the system number “003”. It is managed that the numbering plan data is not distributed.

  The number plan data storage unit 107 also stores button information (key information) such as a park hold button. Accordingly, for example, four park hold buttons, PK1 to PK4, can be used in common by the telephones 2 under the control of each main apparatus 1.

  Further, as indicated by the dotted line in FIG. 2, the address data storage unit 106 and the number plan data storage unit 107 constitute a system information storage unit. That is, the address data stored in the address data storage unit 106 and the number plan data stored in the number plan data storage unit 107 constitute system information, and between the button telephone systems based on these system information. Communication is made possible.

  When the main device 1 is a slave main device, the master information memory 108 stores master information including an IP address and a password of the master main device. This is because the slave main apparatus accesses the master main apparatus through the IP network 200A and connects the communication path. The IP address and password of the master main device stored in the master information memory 108 are provided from a PC connected through the external I / F 111 and the external terminal 112, or a maintenance person through an operation unit (not shown) of the main device 1 It is input by.

  Then, the registration processing unit 131, the distribution processing unit 132, and the connection state notification processing unit 133 shown in FIG. 2 connect the communication path through the wide area network 200 with as little intervention as possible by a person in charge of construction work, It will be the main part for building a telephone system in a wide area. Although not shown, the registration processing unit 131 includes first to fourth registration units 131A, 131B, 131C, and 131D. The first and second registration units 131A and 131B function when the main device 1 is used as a master main device. The third and fourth registration units 131C and 131D function when the main device 1 is used as a slave main device.

  When the main device functions as the master main device, the first registration unit 131A of the registration processing unit 131 receives provision of system information determined in advance, and uses this as the system information storage unit 106. And registration in the number plan data storage unit 107. In this case, the predetermined system information includes address data including the IP address, system number, system name, and priority of the own device, and number plan data of the own button telephone system and other button telephone systems that are preliminarily registered. It is.

  When the main device functions as a master main device, the second registration unit 131B of the registration processing unit 131 accepts system information transmitted from the slave main device through the IP network 200A, and receives the system information as a system information storage unit. Are registered in the address data storage unit 106 and the number plan data storage unit 107. The system information from the slave main unit in this case is an IP address or numbering plan data as address data of the slave main unit.

  When the main device functions as a slave main device, the third registration unit 131C of the registration processing unit 131 receives provision of system information determined in advance, and uses this as the system information storage unit 106. And registration in the number plan data storage unit 107. In this case, the predetermined system information includes an IP address as the address data of the own device, number plan data of the own button telephone system, and the like.

  The fourth registration unit 131D of the registration processing unit 131 uses the system information transmitted from the master main unit through the IP network 200A as address data as a system information storage unit when the main unit functions as a slave main unit. The data is registered in the storage unit 106 and the number plan data storage unit 107. In this case, the system information transmitted from the master main unit includes the IP address of the other main unit, the address data such as the system number, the system name, the priority order of the own unit and the other main unit, and the own button telephone. Information such as numbering plan data for systems and other key telephone systems.

  Although not shown, the distribution processing unit 132 includes first and second distribution units 132A and 132B, and functions when the main device functions as a master main device. The first distribution unit 132A of the distribution processing unit 132 registers the system information from the slave main device of the connection request source in the system information storage unit by the second registration unit 131B of the registration processing unit 131, and then the connection request source. The system information about each of the other main devices constituting the telephone system is distributed to the slave main device. The system information distributed here is address data including the IP address, system number, system name, and priority of another main apparatus, and number plan data of another button telephone system.

  The second distribution unit 132B of the distribution processing unit 132 registers the system information from the slave main device of the connection request source in the system information storage unit by the second registration unit 131B of the registration processing unit 131, and then the connection request source. System information about the main device of the connection request source is distributed to each of the other main devices. The system information distributed here includes address data including the IP address, system number, system name, and priority of the main device of the connection request source, and number plan data of the button telephone system to which the main device of the connection request source belongs. It is.

  The connection state notification processing unit 133 functions when the main device functions as a master main device. The connection status notification processing unit 133 checks the login status (connection status) and communication status of each main device with the login (logging) from the slave main device to the master main device and logoff from the master main device (trigger). Then, this is notified to each connected slave main unit. As a result, each slave main device can appropriately determine the main device capable of communication at this time and the main device incapable of communication, and notify the user.

  With the functions of the registration processing unit 131 and the distribution processing unit 132, in the telephone system configured by using the main device 1, it is easy to connect the button telephone system using the main device as a connection end to the wide area network 200. Can be done. In addition, in a telephone system configured by connecting a plurality of main devices through the wide area network 200, extension numbers are appropriately set by a closed number system so that extension calls between button telephone systems can be easily performed. Yes.

  The park hold memory 140 and the park hold function execution unit 150 are main parts for realizing the park hold function between the button telephone systems in the telephone system formed in a wide area in the main device 1.

  The park hold memory 140 is generated by the own device or provided from another main device when the park hold button is operated in any telephone 2 of any of the key telephone systems belonging to the telephone system. The park hold information is stored and retained. FIG. 5 is a diagram for explaining an example of data stored in the park hold memory 140.

  As shown in FIG. 5, the park hold memory 140 includes a park hold button column, a hold source column, and a hold line column. In the park hold button column, park hold button specifying information that is information for specifying the operated park hold button is stored. In the hold source column, information indicating which telephone in which button telephone system the park hold button has been operated, that is, information specifying an operation source that has performed an operation to execute park hold is held. Stores operation source identification information. The hold line column stores hold line specifying information, which is information for specifying a call line put on hold for the operated park hold button.

  In the case of the example shown in FIG. 5, the case where the following two park hold information is hold | maintained is shown. The first park hold information includes the park hold button “1”, the telephone number of the key telephone system of the system 3 that is “3001” as the park hold source, and the extension number of the key telephone system of the system 2 is This indicates that the telephone line currently connected to the telephone number “2002” is put on hold. That is, the extension line between the park hold button “1” and the telephone having the extension number “3001” of the button telephone system of the system 3 and the telephone having the extension number “2002” of the button telephone system of the system 2 It is managed that the call line is on hold.

  The second park hold information includes the park hold button “2”, the phone having the extension number “1000” of the key telephone system of the system 1 as the park hold source, and the external line 1 of the button telephone system of the system 1. Information indicating that the telephone line currently connected between the two is put on hold. That is, an external line connected to the park hold button “2” via the external line 1 of the key telephone system of the system 1 that was received by the telephone having the extension number “1000” of the key telephone system of the system 1 Is managed to be on hold.

  Thus, the park hold information can be managed in common by the park hold memory 140 of each main device 1 of the button telephone system constituting the wide area telephone system. The park hold function execution unit 150 includes a first setting unit 151, a response processing unit 152, a hold state processing unit 153, a second setting unit 154, and a setting release unit 155, as shown in FIG. Yes.

  The first setting unit 151 controls the control unit 120 when the control unit 120 receives a park hold setting request from another telephone control device transmitted through the IP network 200A through the connection terminal 101 and the IP network I / F 102. Operates according to the control. The park hold setting request from another telephone control device includes park hold button specifying information, hold operation source specifying information, and hold line specifying information. Therefore, the first setting unit 151 receives the provision of the park hold setting request received by the control unit 120, and extracts the park hold button specifying information, hold operation source specifying information, and hold line specifying information included therein. These are set in the corresponding fields of the park hold memory 140.

  In addition, the first setting unit 151 sets the call line to the hold state for each of the telephones accommodated in the own device with respect to the park hold button specified by the park hold button specifying information of the received park hold setting request. Control is performed so as to display that it has been performed. The telephone set 2 accommodated in the main apparatus 1 is provided with a plurality of park hold buttons, and each park hold button is provided with, for example, an LED (Light Emitting Diode) as a display means.

  Therefore, the first setting unit 151 forms a display control signal that causes the LED corresponding to the park hold button specified by the park hold button specifying information of the received park hold setting request to blink. Then, the first setting unit 151 sends the display control signal to the LAN through the control unit 120, the LAN I / F 109, and the connection terminal 110, and provides it to each of the telephones 2 under its control so that the target park hold button is displayed. Make the corresponding LED blink. Thus, in each of the telephones 2 under the main apparatus 1, when the park hold button is operated in the telephone 2 under the other main apparatus 1, the call line is put on hold in which park hold button. You will be able to know if it has been set.

  In response to the park hold, the response processing unit 152 responds to the park hold when the park hold button set to put the call line on hold is operated in order to respond to the park hold. Then, a process of connecting the call line put on hold is performed. Specifically, when a park hold button that is set so that the call line is put on hold is operated, the main device 2 includes park hold button specifying information for specifying the operated park hold button from the telephone set 2. A park hold response notification addressed to 1 is formed. Since this park hold response notification is transmitted to the main device 1 through the LAN, the main device 1 receives this through the connection terminal 110 and the LAN I / F 109 and based on the received park hold response notification, the response processing unit 152. However, it performs processing for connecting the telephone 2 that is the response source and the telephone line that is put on hold.

  The hold status processing unit 153 is connected to the park hold source phone 2 when the park hold button whose call line is not set to the hold status is operated on the phone 2 that is in a call under its control. A process is performed to place a call line that is on hold. When the park hold button whose call line is not set to the hold state is operated in the telephone 2 that is in a call under its own device, the park hold button that specifies the operated park hold button is specified from the telephone 2. A park hold execution notification including information is formed and transmitted through the LAN.

  When receiving the park hold execution notification via the connection terminal 110 and the LAN I / F 109, the control unit 120 of the main device 1 controls the hold state processing unit 153 and is connected to the park hold source telephone 2. Put the call line on hold. In this case, the hold state processing unit 153 cancels the connection of the telephone 2 as the park hold request source while maintaining the connection state of the connected call line, and provides a hold sound to the other party of the call line. To control. Further, the hold state processing unit 153 forms a park hold setting request including the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information, which is transmitted to the IP network 200A through the IP network I / F 102 and the connection terminal 101. To the main device 1 of the telephone system of this embodiment.

  The second setting unit 154 responds to the control of the control unit 120 when the control unit 120 receives the park hold execution notification transmitted from the subordinate telephone 2 transmitted through the LAN through the connection terminal 110 and the LAN I / F 109. Operate. First, the second setting unit 154 performs processing for specifying the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information, and setting them in the corresponding columns of the park hold memory 140.

  Here, the park hold button specifying information is included in the park hold execution notification from the subordinate telephone 2. Further, since the telephone 2 that is the transmission source of the park hold execution notification is under its control, the control unit 120 of the main device 1 can specify the notification source telephone, and therefore can specify the hold operation source identification information. . Similarly, the control unit 120 of the main apparatus 1 determines where the notification source telephone is connected to the communication line because the telephone 2 that is the transmission source of the park hold execution notification is under its own device. It is managed and can specify hold line identification information.

  In addition, the second setting unit 154 sets the call line to the hold state for each of the telephones accommodated in the own device with respect to the park hold button specified by the park hold button specifying information of the received park hold execution notification. Control is performed so as to display that it has been performed. That is, the second setting unit 154 forms a display control signal that causes the LED corresponding to the park hold button specified by the park hold button specifying information of the received park hold execution request to blink. Then, the second setting unit 154 sends the display control signal to the LAN through the control unit 120, the LAN I / F 109, and the connection terminal 110, and provides it to each of the telephones 2 under its control so that the target park hold button is displayed. Make the corresponding LED blink. Thus, in each of the telephones 2 under the main apparatus 1, when the park hold button is operated in the telephone 2 under the other main apparatus 1, the call line is put on hold in which park hold button. You will be able to know if it has been set.

  The setting canceling unit 155 performs an operation for responding to park hold on the telephone 2 under the control of the other main device 1 or an operation for responding to park hold on the telephone 2 under its own device. If this happens, a process for canceling the park hold function is performed. Specifically, when park hold is released by operating a park hold button that is set so that the call line is put on hold, the corresponding park hold information is deleted from the park hold memory 140. I do. The setting canceling unit 155 also blinks the LED corresponding to the park hold button when the park hold button is released by operating the park hold button set so that the call line is put on hold. Control to end. The end control of the blinking operation of the LED is performed by forming an end control signal, sending it to the LAN through the LAN I / F 109 and the connection terminal 110, and providing it to the subordinate telephone 2.

  In this way, each part of the park hold function execution unit 150 functions to execute the park hold function, set the call line to the hold state for the park hold button, or set the phone 2 and the hold that responded to the park hold. It is possible to perform a process of connecting to a call line.

[Configuration example of telephone 2]
Next, a configuration example of the telephone 2 that is LAN-connected to the main device 1 of each key telephone system will be described. FIG. 6 is a block diagram for explaining a configuration example of the telephone 2, and FIG. 7 is an external view of the telephone 2. As shown in FIG. 6, the telephone 2 in this example mainly includes a LAN connection terminal 201, a LAN interface (hereinafter referred to as LAN I / F) 202, a packet processing unit 203, a voice input device, as a part for realizing a telephone function. Output interface (hereinafter referred to as call voice input / output I / F) 204, handset connection terminal 205, handset 206, operation input unit 211, operation input interface (hereinafter referred to as operation input I / F) 212, display controller 213, A display 214 and a ringer 215 are provided.

  The telephone set 2 of this embodiment includes a control unit 220 that controls each unit. The control unit 220 is a microprocessor configured by connecting a CPU 221, a ROM 222, and a RAM 223 through a CPU bus 224. As shown in FIG. 7, the telephone 2 of this embodiment has a configuration in which a handset 206 is placed on the left side of the front surface of the terminal body. The handset 206 is configured to be in an on-hook state when placed on the terminal body, and to be in an off-hook state when lifted from the terminal body. In addition, a display screen of the display 214 is provided on the upper front side of the terminal body, and an operation input unit 211 is provided on the lower side of the display screen of the display 214.

  The operation input unit 211 is provided with four park hold buttons PK1 to PK4 in this embodiment. As described above, for example, the central part of each of the park hold buttons PK1 to PK4 is provided with an LED, and can blink or end blinking according to the control of the control unit 220. It is like that. In addition, the operation input unit 211 is provided with flexible keys FK1 to FK4 that can be assigned functions and the like by the user, and numeric keys (numeric keys (numeric keys and symbol keys), predetermined function keys such as transmission and response). It has been. The flexible keys FK1 to FK4 are also provided with LEDs.

[Action when incoming]
Then, the packet data transmitted via the LAN is supplied to the LAN I / F 202 through the LAN connection terminal 201, converted into data in a format that can be processed by the own machine, and then transmitted via the CPU bus 224. It is supplied to the packet processing unit 203. The packet processing unit 203 decomposes and extracts control data and audio data included in the supplied packet data. The control data extracted here is supplied to the control unit 220 and used for controlling the own device. If voice data addressed to the own device (own terminal) is included, the voice data is supplied to the call voice input / output I / F 204 through the CPU bus 224.

  When the control data decomposed and extracted by the packet processing unit 203 is a call message to the own device, the control unit 220 controls the ringer 215 to ring the incoming call. At the same time, the control unit 220 controls the display controller 213 to display on the display screen of the display 214 a message notifying that there is an incoming call to the own device, a caller's telephone number or name, or a caller's extension number.

  When the user lifts the handset 206 from the main body of the telephone 2 in response to an incoming call to the own apparatus, the telephone 2 enters an off-hook state. In this case, the control unit 220 forms a message responding to the incoming call, packetizes it in the packet processing unit 203, and supplies it to the LAN I / F 202. The LAN I / F 202 converts the packet data into packet data for transmission, sends the packet data to the LAN through the LAN connection terminal 201, and transmits it to the call destination terminal.

  As a result, a communication path is generated between the caller and a call is started. In this case, a packet including voice data from the other party is supplied to the packet processing unit 203 through the LAN connection terminal 201 and the LAN I / F 202 as described above. The packet processing unit 203 disassembles a packet from the other party, and supplies control data to the control unit 220 and voice data to the call voice input / output I / F 204.

  The call voice input / output I / F 204 forms an analog voice signal to be supplied to the speaker (handset) of the own handset 206 from the voice data from the packet processing unit 203, and sends this analog voice signal to the speaker of the handset 206 through the handset connection terminal 205. Supply. Thereby, the voice of the other party transmitted from the other party is emitted from the speaker (handset) of the handset 206.

  On the other hand, the voice collected by the microphone (transmitter) of the handset 206 is converted into an electrical signal here and supplied to the call voice input / output I / F 204 through the handset connection terminal 205. The call voice input / output I / F 204 performs processing such as converting voice data from the handset 206 into a digital signal, and supplies this to the packet processing unit 203. The packet processing unit 203 forms a packet for transmission to the other party including the voice data from the call voice input / output I / F 204, sends the packet to the LAN through the LAN I / F 202 and the LAN connection terminal 201, and communicates with the other party. Send first. In this way, the telephone 2 can respond to an incoming call to itself and generate a communication path with the call destination to make a call.

[Operation when calling]
Next, processing when making a call from the telephone 2 (when making a call (calling)) will be described. When making a call from the telephone set 2, first, the handset 206 is lifted from the main body of the telephone set 2 to put the telephone set 2 in an off-hook state, and the telephone number or extension number of the communication partner is input through the operation input unit 211. The information input here is supplied to the control unit 220 through the operation input I / F 212.

  Then, the control unit 220 forms a call message and supplies it to the packet processing unit 203. The packet processing unit 203 packetizes a call message from its own device, sends it to the LAN through the LAN I / F 202 and the LAN connection terminal 201, and transmits it to the destination of the intended communication.

  After this, a communication path is generated when a response from the intended destination is returned. As a result, a call can be made by a call function including the LAN connection terminal 201, the LAN I / F 202, the packet processing unit 203, the call voice input / output I / F 204, the handset connection terminal 205, and the handset 206. In this way, the telephone 2 can also make a call by calling the target terminal from its own device and connecting the communication line to the other party.

[Communication path connection operation between button telephone systems (connection processing)]
Next, the basic connection operation of the communication path between the button telephone systems configured using the main device 1 and the telephone 2 will be described. Here, a case where a connection is requested from the slave main apparatus 1B installed in the branch office 1 (Tohoku) to the master main apparatus 1A installed in the head office (Tokyo) will be described. FIG. 8 is a sequence diagram for explaining an operation when a communication path is connected between the master main apparatus 1A and the slave main apparatus 1B through the IP network 200A.

  In the PC connected through the external I / F 111 and the external terminal 112 of the main apparatus 1A, predetermined system information is created in advance (step S1). Here, the system information includes group ID used in a telephone system formed in a wide area, common data such as a password, system number assigned to each button telephone system, address data such as a system name and priority, and each button telephone system. Number plan data to be assigned to

  When the main apparatus 1A is installed at the head office, the PC transfers the created system information to the main apparatus 1A (step S2). The first registration unit 131A of the registration processing unit 131 of the main apparatus 1A registers common data and address data in the corresponding area of the address data storage unit 106, and number plan data is registered in the corresponding area of the number plan data storage unit 107. (Step S3). That is, in step S3, an update process is performed to update common data, address data, and numbering plan data, which are predetermined system information, to the system information storage unit.

  Then, through the processing of Steps S1 to S3 described above, the address data storage unit 106 of the main device 1A has a group ID and a password, and a system number assigned to each of the main devices that constitute the telephone system, The system name and priority are registered. In addition, through the processes in steps S1 to S3 described above, the numbering plan data assigned to each button telephone system constituting the telephone system is registered in the numbering plan data storage unit 107 of the main apparatus 1A.

  In this embodiment, as shown in FIG. 3, “GP001” is registered as the group ID and “PWabc...” Is registered as the password in the address data storage unit 106. In the example shown in FIG. 3, the system numbers are “001”, “002”, “003”, the system names are “system 1”, “system 2”, “system 3”, and the priority is “first place”. ”,“ Second place ”, and“ third place ”are registered. As shown in FIG. 4, the numbering plan data storage unit 107 stores numbering plan data for the button telephone systems having system numbers “001”, “002”, and “003”.

  When the main apparatus 1A is physically connected to the IP network 200A or the telephone network 200B, the IP network I / F 102 functions in the main apparatus 1A under the control of the control unit 120, and the ISP on the telephone company side. Access the server. The main apparatus 1A receives an IP address assigned from the ISP server, and the first registration unit 131A of the registration processing unit 131 functions and registers it in the address data storage unit 106 under the control of the control unit 120 ( Step S4). In this example, it is assumed that the IP address assigned to the main apparatus 1A is “XXX.XXX.XXX.XXX”.

  Then, through the processing of step S1 to step S4, in the main apparatus 1A, address data for the own device is recorded in the address data storage unit 106. That is, in the main apparatus 1A, as shown in FIG. 3, the IP address assigned to the main apparatus 1A is “XXX.XXX.XXX.XXX”, the system number of the main apparatus 1A is “001”, and the system name Is registered as “system 1” and the priority is “first”.

  Since the priority order is “first” among the address data of the main apparatus 1A, the main apparatus 1A is selected as the master main apparatus. Further, since the system number is “001”, each of the telephones 2A (1), 2A (2),... Of the key telephone system having the master main device 1A as the connection end to the wide area network 200 has 1000 numbers. An extension number is assigned.

  On the other hand, when the main device 1B installed in the branch office 1 is physically connected to the IP network 200A or the telephone network 200B, the IP network I / F 102 functions in the main device 1B under the control of the control unit 120. Then, the ISP server on the telephone company side is accessed. Then, the main apparatus 1B receives an IP address assignment from the ISP server, and registers it in the address data storage unit 106 under the control of the control unit 120 by the third registration unit 131C of the registration processing unit 131 (see FIG. Step S5). In this example, it is assumed that the IP address assigned to the main apparatus 1B is “YYY.YYY.YYY.YY1”.

  In the process of step S5, only the address “YYY.YYY.YYY.YY1”, which is the IP address of the own device, is registered in the address data storage unit 106 of the main apparatus 1B. Therefore, since the priority order that should have been set for the master main apparatus is not set, the main apparatus 1B functions as a slave main apparatus.

  The main apparatus 1B installed in the branch office 1 is supplied with the IP address and password of the master main apparatus 1A through the PC connected through the external I / F 111 and the external terminal 112, and this is supplied to the control unit. 120 records in the master information memory 108 (step S6). As a result, “XXX.XXX.XXX.XXX” that is the IP address of the master main device 1A and “PWabc12...” That is the password are registered in the master information memory 108 of the main device 1B. As described above, in FIG. 8, the processes in steps S1 to S6 are preparation processes for connecting a communication path through the IP network 200A between the master main apparatus 1A and the slave main apparatus 1B.

  In the slave main apparatus 1B, the control unit 120 uses the IP address and password of the master main apparatus 1A in the master information memory 108 and controls the IP network I / F 102 to access the master main apparatus 1A. The connection request is transmitted (step S7). In step S7, the slave main apparatus 1B logs in to the master main apparatus 1A in order to register the button telephone system having the slave main apparatus 1B as the connection end to the network 200 in the telephone system formed in a wide area. It becomes processing.

  When the master main apparatus 1A receives a connection request from the slave main apparatus 1B, the master main apparatus 1B first authenticates whether the slave main apparatus 1B can be connected to its own device. Processing for registration in the telephone system is performed (step S8). That is, in step S8, first, the control unit 120 of the master main apparatus 1A checks whether or not the password included in the connection request is the same as the password stored in the address data storage unit 106. If so, the slave main device 1B is authenticated. If they are not the same, the slave main apparatus 1B is notified of connection refusal, and the subsequent processing is not performed.

  When authenticating the slave main device 1B, the control unit 120 of the master main device 1A controls the second registration unit 131B of the registration processing unit 131, and uses the IP address of the slave main device 1B included in the connection request as address data. Register in the storage unit 106. In this case, the second registration unit 131B searches in order from the first in the address data storage unit 106, and registers the IP address from the slave main device 1B in the IP address column of the address data where the IP address is not registered. To do.

  Through this authentication / registration process in step S8, in this example, as shown in FIG. 3, the IP address “YYY.Y” of the slave main apparatus 1B is displayed in the IP address column of the second data in the address data storage unit 106. YYY.YYY.YY1 "is registered (updated). Accordingly, the system number “002”, the system name “system 2”, and the priority “second place” are assigned to the slave main apparatus 1B.

  Next, the master main apparatus 1A distributes system information to the slave main apparatus 1B that is the connection request source (step S9). In this case, the control unit 120 of the master main device 1A controls the first distribution unit 132A of the distribution processing unit 132 to distribute system information to the slave main device 1B that is the connection request source. The system information distributed here includes common data including a group ID and a password, predetermined address data, and predetermined numbering plan data.

  The address data distributed in step S9 is the system number, system name and priority for the slave main apparatus 1B stored in the address data storage unit 106, and the IP address, system number and system name of the master main apparatus 1A. , Is priority. The numbering plan data distributed in step S9 is numbering plan data with the system number “001” and numbering plan data with the system number “002” stored in the numbering plan data storage unit 107. The numbering plan data with the system number “001” is for the master main unit 1A, and the numbering plan data with the system number “002” is for the slave main unit 1B.

  In the slave main apparatus 1B, the control unit 120 controls the fourth registration unit 131D of the registration processing unit, and records the system information provided in step S9 in the system information storage unit (step S10). That is, in step S10, the registration unit 131D registers common data and address data from the master main unit 1A in the address data storage unit 106, and number plan data from the master main unit 1A in the number plan data storage unit 107.

  In this way, the processing from step S7 to step S10 becomes the login processing from the slave main device 1B to the master main device 1A. By this series of processing, the IP network is connected between the master main device 1A and the slave main device 1B. Communication paths are connected to each other through 200A. Thus, between the telephones 2A (1), 2A (2),... LAN connected to the master main apparatus 1A and the telephones 2B (1), 2B (2),. Thus, an extension call using the extension number can be performed.

  Then, the master main device 1A communicates with each other the main devices that are connected to each other via the IP network 200A and their connection states (results of health chucks) when the slave main device 1B logs in. The main device connected to the road is notified (step S11). In the case of this example, only the master main device 1A and the slave main device 1B are connected to each other through the IP network 200A, so that the connection state and the like are changed from the master main device 1A to the slave main device. 1B is notified.

  Thereby, the slave main apparatus 1B can grasp the current connection status of the telephone system formed in a wide area to which the self-button telephone system belongs. Therefore, it is possible to grasp whether or not communication is possible according to the connection state without the user performing an erroneous operation such as making an extension call to the unconnected button telephone system.

  In the case of the example described with reference to FIG. 8, the numbering plan data has been described as being provided from the master main unit 1A from the beginning. However, the numbering plan data may or may not have the slave main unit from the beginning, or the slave main unit may have its own numbering plan data. In the case of the example described with reference to FIG. 8, a communication path has already been connected to the master main apparatus 1A through the IP network 200A, and no other slave main apparatus exists. For this reason, the second distribution unit 132B of the distribution processing unit 132 of the master main apparatus 1A is not used.

  However, when a communication path is already connected to the master main apparatus 1A through the IP network 200A and another slave main apparatus exists, the second distribution unit 132B of the distribution processing unit 132 of the master main apparatus 1A functions. Processing such as providing the system information of the existing slave main device to the slave main device that is the connection request source is performed.

[Extension phone processing]
Next, in the telephone system of this embodiment configured by being connected through the above-described wide area network, an operation (processing) for making an extension call from a telephone of one button telephone system to a telephone of another button telephone system. ). FIG. 9 is a sequence for explaining the operation (processing) when placing an extension call from the telephone 2A (1) connected to the master main apparatus 1A via the LAN to the telephone 2B (1) connected via LAN to the slave main apparatus 1B. FIG.

  In the address data storage unit 106 of the master main apparatus 1A, as shown in FIG. 3, common data (group ID, password) and address data (IP address, system) of each main apparatus constituting the telephone system of this embodiment are stored. Number, system name, priority). Further, as shown in FIG. 4, the numbering plan data of each main unit constituting the telephone system of this embodiment is registered in the numbering plan data storage unit 107 of the master main unit 1A.

  The common data and the address data stored in the address data storage unit 106 of the master main apparatus 1A are also registered in the address data storage units 106 of the slave main apparatuses 1B and 1C. However, the address data registration order is such that its own address data is located at the top. Also, the same numbering plan data as the numbering plan data storage unit 107 of the master main unit 1A is registered in the numbering plan data storage unit 107 of the slave main units 1B and 1C.

  In this case, it is assumed that “2000” is dialed in the telephone 2A (1) with the extension number 1000 connected to the master main apparatus 1A by LAN, and an extension call is made to the telephone with the extension number 2000. To do. In this case, the caller telephone 2A (1) forms a call message for the extension 2000 and transmits it to the main device 1A of the own key telephone system through the LAN (step S21). The main apparatus 1A that has received the calling message identifies which key telephone system telephone the extension number 2000 has (step S22).

  In step S22, the control unit 120 of the main apparatus 1A refers to each number plan data in the number plan data storage unit 107, and identifies the system number of the key telephone system to which the extension number 2000 is connected. Then, the main apparatus 1A of the caller makes a call with the caller as the telephone with the extension number 1000 of the system number “001” and the callee as the telephone with the extension number 2000 of the system number “002”. A request is formed and transmitted to the main apparatus 1B through a communication path connected through the IP network 200A (step S23).

  When receiving a call request from the main apparatus 1B, the control unit 120 of the main apparatus 1B that receives the call forms a call message for calling the telephone with the extension number 2000 and transmits it to the telephone with the extension number 2000 through the LAN. (Step S24). In the telephone 2B (1) having the extension number of 2000 that has received the call message, in response to the call message, an indication that an incoming call from the extension number of 1000 has occurred is displayed on the display unit, and a ring tone is also sent. It is made to ring (step S25).

  Thereafter, when a response operation (off-hook operation) is performed on the telephone 2B (1) having the extension number 2000, the telephone 2B (1) forms a response notification message for the telephone having the extension number 1000, and through the LAN. It transmits to the main device 1B (step S26). The control unit 120 of the main apparatus 1B transmits the response notification message to the main apparatus 1A through a communication path connected through the IP network 200A (step S27).

  The main apparatus 1A notifies the response notification message from the main apparatus 1B to the caller telephone 2A (1) through the LAN (step S28). As a result, a telephone line is connected through the LAN and IP network 200A between the caller telephone 2A (1) and the callee telephone 2B (1) so that a telephone call can be made (step). S29).

  Thereafter, for example, when a telephone call end operation (on-hook operation) is performed on the telephone 2A (1) having the extension number 1000, the telephone 2A (1) forms a disconnection notification message for the telephone having the extension number 2000. Then, the data is transmitted to the main apparatus 1A through the LAN (step S30). The control unit 120 of the main apparatus 1A transmits the disconnection notification message to the main apparatus 1B to which the communication path is connected through the IP network 200A (step S31).

  The main apparatus 1B notifies the disconnection notification message from the main apparatus 1A to the destination telephone 2B (1) via the LAN (step S32). Thereafter, the main apparatus 1B forms a call line release notification message and transmits it to the main apparatus 1A (step S33). The main apparatus 1A transmits the release notification message to the caller telephone 2A (2) through the LAN (step S34). As a result, the telephone line connected between the caller telephone 2A (1) and the callee telephone 2B (1) is released.

  As described above, in the telephone system of this embodiment, the numbering scheme of the closed number system is appropriately distributed to each slave main apparatus by the master main apparatus 1A. It is possible to make an extension call by simply inputting an extension number to a telephone of another button telephone system.

[Use park hold function]
Next, a specific embodiment of the park hold function that can be used between the button telephone systems in the telephone system configured by being connected through the wide area network 200 as described above will be described. In the following, in order to simplify the description, a case where the park hold function is used in a telephone system in which four button telephone systems are connected through a wide area network will be described as an example.

  FIG. 10 is a diagram for explaining a configuration example of a telephone system according to the embodiment described below. As shown in FIG. 10, the telephone system described below includes a button telephone system configured in a head office in Tokyo, a branch office 1 in Tohoku, a branch office 2 in Kansai, and a branch office 3 in Kyushu. It is configured to be connected through.

  The key telephone system configured in the head office is configured by connecting telephones 2A (1), 2A (2),... Further, the key telephone system configured in the branch office 1 is configured by connecting the telephones 2B (1), 2B (2),... Further, the key telephone system configured in the branch office 2 is configured by connecting the telephones 2C (1), 2C (2),... Further, the key telephone system configured in the branch office 3 is configured by connecting the telephones 2D (1), 2D (2),...

  Each of main devices 1A, 1B, 1C, and 1D has the configuration described with reference to FIGS. Also, the telephones 2A (1), 2A (2), ... 2B (1), 2B (2), ... 2C (1), 2C (2), ... 2D (1), 2D (2), ... Each has the configuration described with reference to FIGS. 6 and 7. Then, with the main apparatus 1 installed at the head office as the master main apparatus and the other main apparatuses 1B, 1C, and 1D as slave main apparatuses, the master main apparatus 1A is mainly used in the method described with reference to FIG. The main devices transmit and receive system information, and the system information is set in the system information storage unit of the own device. As a result, as described with reference to FIG. 9, communication paths are connected between the main apparatuses through the IP network 200 </ b> A so that extension calls can be performed mutually.

  Note that the system information of each main device in the case of the telephone system shown in FIG. 10 is as follows. The system information of the main apparatus 1A is that the IP address is “XXX.XXX.XXX.XXX”, the system number is “001”, the system name is “System 1”, the priority is “No. 1”, and the extension number is It is assumed that four uses of PK1 to PK4 are enabled as park hold buttons using the 1000 series. Similarly, the system information of the main apparatus 1B is that the IP address is “YYY.YYY.YYY.YY1”, the system number is “002”, the system name is “system 2”, and the priority is “second”. It is assumed that the extension numbers are in the 2000s and that four parked buttons PK1 to PK4 can be used.

  Similarly, the system information of the main apparatus 1C is that the IP address is “YYY.YYY.YYY.YY2”, the system number is “003”, the system name is “System 3”, and the priority is “No. 3”. It is assumed that the extension numbers are in the 3000s and that four parked buttons PK1 to PK4 can be used. Similarly, the system information of the main device 1D is that the IP address is “YYY.YYY.YYY.YY3”, the system number is “004”, the system name is “system 4”, and the priority is “4”. It is assumed that the extension numbers are in the 4000s and that four parked buttons PK1 to PK4 can be used.

  In the system information storage units of the main devices 1A, 1B, 1C, and 1D, the system information of each main device is the master main device 1A and the slave main devices that are described with reference to FIG. It is assumed that it is set by being performed between 1B, 1C, and 1D.

[First embodiment for realizing the park hold function]
First, with respect to an example in which the main device that accommodates the telephone on which the park hold operation has been performed controls the other main device of the same telephone system to realize the park hold function between the button telephone systems, FIG. This will be described with reference to FIG. FIGS. 11 and 12 are sequence diagrams for explaining the processing from the execution to the end of the park hold function according to the first embodiment.

  In the first embodiment, as shown in FIG. 11, a telephone line (call path) is connected between the telephone 2B under the main apparatus 1B and the telephone 2C under the main apparatus 1C, and an extension call is made. Is performed (step S41). Then, in the telephone set 2C under the control of the main apparatus 1C, for example, as shown in the external view of FIG. 7, the park hold function is executed by operating the park hold button PK1 provided on the telephone set 2C. (Step S42).

  In this case, in the telephone 2C in which the park hold button PK1 is operated, the control unit 220 forms a park hold execution request including the park hold button specifying information indicating that the park hold button PK1 has been operated. It transmits to the connected main apparatus 1C. The park hold execution request is sent to the LAN through the LAN I / F 202 and the connection terminal 201 of the telephone 2C, and is transmitted to the main apparatus 1C. The control unit 120 of the main apparatus 1C accepts a park hold execution request transmitted from the subordinate telephone 2C through the LAN through the connection terminal 110 and the LAN I / F 109. In the main apparatus 1C that has received the park hold execution request, the second setting unit 154 sets the park hold button specified by the park hold button specifying information of the received park hold execution request to the communication line under the control of the control unit 120. Reserved for setting to put on hold. Such a series of processes is performed in step S42.

  In addition, between the main device 1 of the key telephone system and the telephone 2, as described above, the LAN is connected through the LAN I / F 202 and the connection terminal 201 of the telephone 2, and through the LAN I / F 109 and the connection terminal 110 of the main device 1. Data is transmitted and received via the.

  Next, in the main device 1C, under the control of the control unit 120, the hold state processing unit 153 forms a park hold execution request addressed to another main device including the park hold button specifying information, and the request is sent to the other main device 1C. 1A, 1D (steps S43, S44, S45). The park hold button specifying information included in the park hold execution request is included in the park hold execution request from the telephone 2C on which the park hold button is operated. Further, the hold state processing unit 153 specifies the IP address of another main device of the telephone system to which the own device belongs based on the data stored in the address data storage unit 106, and uses this to address each of the other main devices. Form a park hold execution request. The park hold execution request addressed to another main device formed by the hold state processing unit 153 is sent to the IP network 200A through the IP network I / F 102 and the connection terminal 101, and the other main devices 1A constituting the same telephone system, 1B and 1D are transmitted.

  The transmitted park hold execution request is received through the connection terminal 101 and the IP network I / F 102 of the other main apparatuses 1A, 1B, and 1D, and is supplied to the control unit 120. In each of the other main apparatuses 1A, 1B, and 1D, the park hold button specified by the park hold button specifying information included in the received park hold execution request is controlled by the first setting unit 151 under the control of the control unit 120. It is determined whether or not it can be used (whether or not it is free). Here, it is assumed that it is determined that the specified park hold button is usable. In this case, the first setting unit 151 secures the use of the park hold button and forms an “OK message” for notifying that the park hold function can be executed, which is the transmission source of the park hold execution request. A reply is sent to the main apparatus 1C (steps S46, S47, S48). The “OK message” is transmitted to the IP network 200A through the IP network I / F 102 and the connection terminal 101, and is transmitted to the main apparatus 1C. In the main apparatus 1 </ b> C, the data is received through the connection terminal 101 and the IP network I / F 102 and supplied to the control unit 120.

  For example, in any of the other main apparatuses 1A, 1B, 1D, before receiving the park hold execution request from the main apparatus 1C, it is specified by the park hold button specifying information notified by the park hold execution request. Suppose the park hold button is operated. In this case, since the use of the park hold button cannot be ensured, an “NG message” is formed and transmitted to the main apparatus 1C. In the main apparatus 1C that has received the “NG message”, the park hold button operated by the warning on or warning message cannot be used for the telephone 2C under control of the park hold button. Will be prompted to operate again, and will wait for the operation of another park hold button. In this way, the collision of the operation of the park hold button can be appropriately avoided.

  Further, between each of the main devices 1A, 1B, 1C, and 1D, as described above, the IP network I / F 102 and the connection terminal 101 of each main device 1A, 1B, 1C, and 1D are passed through the IP network 200A. The received data is sent and received.

  Then, as shown in steps S46, S47, and S48 in FIG. 11, it is assumed that an “OK message” is returned from each of the other main apparatuses 1A, 1B, and 1D through the IP network 200A. In this case, the hold state processing unit 153 of the main device 1C forms a common park hold transition notification under the control of the control unit 120, and transmits it to the main device 1B connected to the telephone line (step S49). . In response to this, the main apparatus 1B returns an “OK message” to the main apparatus 1C (step S50).

  Thereafter, the hold state processing unit 153 of the main apparatus 1C holds the call line connected to the main apparatus 1B as it is with respect to the main apparatus 1B through the call line under the control of the control unit 120. A sound is transmitted (step S51). As a result, the hold sound from the main apparatus 1C is supplied to the main apparatus 1B, and the hold sound is supplied to the subordinate telephone 2B connecting the telephone line 2C of the main apparatus 1C and the telephone line through the main apparatus 1B. .

  Thereafter, the hold state processing unit 153 of the main apparatus 1C forms a notice of completion of the shift to park hold under the control of the control unit 120, and supplies this to the other main apparatuses 1A, 1B, and 1D through the IP network 200A. (Steps S52, S53, S54). Further, the hold state processing unit 153 of the main device 1C forms a park hold setting request under the control of the control unit 120, and supplies this to the other main devices 1A, 1B, and 1D through the IP network 200A (step S55). , S56, S57).

  The park hold setting request includes park hold button specifying information, hold operation source specifying information, and hold line specifying information. The park hold button specifying information is the same as the park hold button specifying information included in the park hold execution request provided from the telephone 2C subordinate to the main device 1C on which the park hold operation is performed, and the other main device 1A 1B and 1D have already been notified.

  In addition, in this example, the hold operation source identification information is information indicating that the park hold operation source is the telephone 2C subordinate to the main device 1C. If the park hold operation source is the telephone 2C whose extension number is “3001” under the main device 1C, as shown in FIG. 5, the system number of the main device 1C (system 3) and the park hold operation source phone 2C Information consisting of the extension number (3001) is the hold source identification information.

  Further, in this example, the reserved line identification information is information indicating that the telephone 2B is subordinate to the main apparatus 1B. If the call line to be held is connected to the telephone 2B whose extension number is “2002” under the main apparatus 1B, as shown in FIG. 5, the system number (system 2) of the main apparatus 1B and Information including the extension number (2002) of the telephone 2B to be connected becomes the hold line identification information.

  In the main apparatuses 1A, 1B, and 1D that have received the park hold setting request, the first setting unit 151 functions under the control of the control unit 120, and setting of information in the park hold memory 140 and correspondence of the park hold button are performed. LED blinking control is performed (steps S58A, 58B, and 58D). Specifically, in the main apparatuses 1A, 1B, and 1D, the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information are extracted from the park hold setting request received by the first setting unit 151, and these are parked. Set in the reserved memory 140. In addition, the first setting unit 151 of the main devices 1A, 1B, and 1D forms a control signal that causes the corresponding LED of the park hold button PK1 that is secured to be used, and this is transmitted through the control unit 120. It is sent to the LAN and supplied to the telephones 2A, 2B and 2D under its own machine.

  Also in the main apparatus 1C, the second setting unit 154 functions under the control of the control unit 120, and performs setting of information in the park hold memory 140 and blinking control of the corresponding LED of the park hold button (step S58C). ). Specifically, in the main apparatus C, the second setting unit 154 sets the park hold button specifying information, hold operation source specifying information, and hold line specifying information included in the transmitted park hold setting request in the park hold memory 140. . In addition, the second setting unit 154 forms a control signal that causes the corresponding LED of the park hold button PK1 that has been secured to blink, and supplies the control signal to the subordinate telephone 2C through the control unit 120.

  By the processing of each step shown in FIG. 11, the telephone 2A subordinate to each main apparatus 1A, 1B, 1C, 1D constituting the telephone system according to the operation on the park hold button of the telephone 2C subordinate to the main apparatus 1C. 2B, 2C, 2D can be parked.

  And as shown in FIG. 12, it is in the park hold state, and the hold sound is provided from the main device 1C to the main device 1B through the telephone line connected between the main device 1C and the main device 1B. (Step S61). In this case, the user of the telephone 2C of the main apparatus 1C on which the hold operation has been performed can use a separate extension telephone, a chat or an email using a communication terminal such as a personal computer, a mobile phone terminal, or a tablet PC. Request the other party to respond to park hold. In the first embodiment, it is assumed that the user of the telephone 2C of the main apparatus 1C requests the user of the telephone 2D of the main apparatus 1D to respond to the park hold set in the park hold button PK1.

  In response to the response request to the park hold, the user of the telephone 2D of the main apparatus 1D performs a park hold response operation by pressing the park hold button PK1 with the corresponding LED blinking ( Step S62). In this case, in the telephone 2D in which the park hold button PK1 is operated, the control unit 220 forms a park hold response request including the park hold button specifying information indicating that the park hold button PK1 has been operated. It transmits to the connected main apparatus 1D.

  The control unit 120 of the main device 1D receives a park hold response request from the subordinate telephone 2D. In the main apparatus 1D, under the control of the control unit 120, the park hold information corresponding to the park hold button specified by the park hold button specifying information of the park hold response request received by the response processing unit 152 is read from the park hold memory 140. . The response processing unit 152 specifies which communication line of which main apparatus is the communication line in the hold state, based on the hold line specifying information of the read park hold information. And the response process part 152 forms the park hold response request with respect to the main apparatus used as the other party of the communication line made into the said hold state, and transmits this to the main apparatus 1B used as the said other party.

  In this example, as described above, the call line between the telephone 2C of the main apparatus 1C and the telephone 2B of the main apparatus 1B is put on hold by the park hold operation of the telephone 2C of the main apparatus 1C. For this reason, it can be specified by the hold line identification information in the park hold memory 140 that the call line placed on hold by the park hold button PK1 is connected to the telephone 2B of the main apparatus 1B. For this reason, the main apparatus 1D forms a park hold response request for responding to the call line put on hold in the park hold button PK1 with respect to the main apparatus 1B, and transmits this request to the main apparatus 1B (step S63). ).

  In the main device 1B that has received the park hold response request, under the control of the control unit 120, the response processing unit 152 takes over the connected call line in response to the park hold response request to the telephone 2D of the main device 1D. Process. In this case, the response processing unit 152 of the main apparatus 1B forms an “OK message” for the main apparatus 1D, and returns this to the main apparatus 1D that is the request for the park hold response via the IP network 200A (step S64).

  Furthermore, the response processing unit 152 of the main device 1B specifies the hold operation source based on the hold operation source specifying information corresponding to the park hold button PK1 in the park hold memory 140. In this example, since the hold operation source is the telephone 2C of the main device 1C, the response processing unit 152 of the main device 1B forms a call line disconnection request to the main device 1C that is transmitting the hold sound, This is transmitted to the main apparatus 1C through the IP network 200A (step S65).

  In the main device 1C that has received the disconnection request, the hold state processing unit 153 functions under the control of the control unit 120, forms an “OK message”, and transmits it to the main device 1B (step S66). And the call line connected to the telephone 2B of the main apparatus 1B is released. Thereafter, the response processing unit 152 of the main device 1B and the main device 1D connects the call line (call path) under the control of the control unit 120, and the call line with the telephone 2B of the main device 1B that has been put on hold. However, it is connected to the telephone 2D of the main apparatus 1D and the call is taken over (step S67).

  In the main apparatus 1C that originally received the disconnection request and is the original hold operation source, the setting release unit 155 performs the park hold release process under the control of the control unit 120. First, the setting release unit 155 forms a park hold release request including the park hold button specifying information and transmits it to the other main apparatuses 1A, 1B, and 1D through the IP network 200A (steps S68, S69, and S70).

  In each of the main apparatuses 1A, 1B, and 1D that have received the park hold release request, the setting release unit 155 functions under the control of the control unit 120 to perform a process of releasing the park hold for the park hold button PK1. Specifically, the setting cancellation unit 155 controls to erase the corresponding data in the park hold memory 140 and stop the blinking operation of the LED corresponding to the corresponding park hold button of the subordinate telephones 2A, 2B, and 2D. (Steps S71A, S71B, S71D). In this example, the data about the park hold button PK1 in the park hold memory 140 is erased in the main devices 1A, 1B, and 1D. Further, the blinking of the LEDs corresponding to the park hold buttons PK1 of the telephones 2A, 2B, and 2D under the respective main devices 1A, 1B, and 1D is turned off (stopped).

  Also, in the main device 1C that is the hold operation source, the setting release unit 155 functions under the control of the control unit 120, and performs a process of releasing the park hold for the park hold button PK1. Specifically, the setting canceling unit 155 controls to erase the corresponding data in the park hold memory 140 and stop the blinking operation of the corresponding LED of the corresponding park hold button of the subordinate telephone 2C (step S71C). . That is, in this example, the data regarding the park hold button PK1 in the park hold memory 140 is also deleted in the main device 1C. Further, the blinking of the LED corresponding to the park hold button PK1 of the telephone 2C under the control of the main device 1C is turned off (stopped).

  Thus, the telephone line 2D of the main apparatus 1D is connected to the telephone line 2B of the main apparatus 1B, which is connected to the park hold button PK1, by the series of processes described with reference to FIG. You can take over the call. And the hold state of the call line to the park hold button PK1 in each main apparatus 1A, 1B, 1C, 1D constituting the telephone system can be appropriately released.

  Thereafter, the call is terminated, and for example, the telephone 2D of the main apparatus 1D performs an on-hook operation to return the handset 206 to the telephone 2D, so that a disconnection request is transmitted from the main apparatus 1D to the main apparatus 1B (step). S72). In response to this, by performing an on-hook operation to return the handset 206 to the telephone 2B in the telephone 2B of the main apparatus 1B, an “OK message” is transmitted from the main apparatus 1B to the main apparatus 1D (step S73). . Thereby, the telephone line (call path) is also released. Here, although it has been described that the on-hook operation is performed from the telephone 2D under the control of the main apparatus 1D, it is of course possible to perform the on-hook operation from the telephone 2B of the main apparatus 1B. In this case, only the source and destination of the disconnection request and “OK message” are changed.

  In this way, in the case described with reference to FIGS. 11 and 12, the main device 1 that accommodates the telephone 2 on which the park hold operation has been performed controls the other main device 1 of the same telephone system to control the button. A park hold function between telephone systems can also be realized.

[Second Embodiment for Realizing Park Hold Function]
Next, see FIG. 13 and FIG. 14 for an example in which the master main unit controls another main unit (slave main unit) of the same telephone system to realize the park hold function between the button telephone systems. While explaining. In the case of the example described with reference to FIG. 11 and FIG. 12, the main device that accommodates the telephone on which the park hold operation is performed controls the other main device of the same telephone system, and is the same for different telephones. The control when the park hold button is operated simultaneously may be slightly complicated.

  For this reason, in the second embodiment described below, the relationship between the master main device and the slave main device determined in advance is used when the telephone system is configured as described above. That is, in the second embodiment described below, the master main unit always controls another main unit (slave main unit) to realize a park hold function between the button telephone systems. In the second embodiment, as described with reference to FIG. 10, the telephone system is connected to the Tokyo head office, the Tohoku branch office 1, the Kansai branch office 2, and the Kyushu branch office 3, respectively. The configured button telephone system is configured to be connected through the wide area network 200.

  FIGS. 13 and 14 are sequence diagrams for explaining the processing from the execution to the end of the park hold function according to the second embodiment. As shown in FIG. 13, in the second embodiment as well, in the same way as in the first embodiment described above, the telephone 2B subordinate to the main apparatus 1B and the telephone 2C subordinate to the main apparatus 1C It is assumed that a telephone line (call path) is connected between the terminals and an extension call is performed (step S81). Then, in the telephone set 2C under the control of the main apparatus 1C, for example, as shown in the external view of FIG. 7, the park hold function is executed by operating the park hold button PK1 provided on the telephone set 2C. (Step S82).

  In this case, in the telephone 2C in which the park hold button PK1 is operated, the control unit 220 forms a park hold execution request including the park hold button specifying information indicating that the park hold button PK1 has been operated. The data is transmitted to the connected main apparatus 1C through the LAN. The control unit 120 of the main apparatus 1C accepts a park hold execution request transmitted from the subordinate telephone 2C through the LAN. In the main apparatus 1C that has received the park hold execution request, the second setting unit 154 sets the park hold button specified by the park hold button specifying information of the received park hold execution request to the communication line under the control of the control unit 120. Reserved for setting to put on hold. Such a series of processes is performed in step S82.

  Next, in the main apparatus 1C, the hold state processing unit 153 forms a park hold execution request addressed to the main apparatus 1B including the park hold button specifying information under the control of the control unit 120, and the request is executed through the IP network 200A. It is transmitted to 1B (step S83). The park hold button specifying information included in the park hold execution request is included in the park hold execution request from the telephone 2C on which the park hold button is operated. In the main apparatus 1B that is the transmission destination of the park hold execution request, the first setting unit 151 functions under the control of the control unit 120 to form an “OK message” or “NG message”, which is transmitted to the IP network 200A. To the main apparatus 1C (step S84).

  The “OK message” is formed when the park hold function can be executed. The “NG message” is formed when the park hold function cannot be executed. For example, in the case of this example, park hold execution corresponding to the operation of the park hold button PK1 is also performed from the telephone 2B subordinate to the main apparatus 1B almost simultaneously with the arrival of the park hold execution request from the main apparatus 1C. This is the case when a request arrives at the main apparatus 1B.

  In this example, when the main apparatus 1C receives the “NG message” from the main apparatus 1B, it provides a warning on or warning message to the telephone 2D on which the park hold operation has been performed, and the park hold function is activated. Notify that execution is not possible. In addition, when the main apparatus 1C receives the “OK message” from the main apparatus 1B, the execution process of the park hold function is advanced.

  When the main apparatus 1C receives the “OK message” from the main apparatus 1B, the main apparatus 1C forms a park hold execution request and transmits it to the master main apparatus 1A through the IP network 200A (step S85). The park hold execution request transmitted from the main apparatus 1C to the master main apparatus 1A includes park hold button specifying information, hold operation source specifying information, and hold line specifying information.

  Here, the park hold button specifying information is the same as the park hold button specifying information included in the park hold execution request provided from the telephone 2C subordinate to the main apparatus 1C on which the park hold operation is performed. In addition, the hold operation source identification information is information indicating that the park hold operation source is the telephone 2C under the control of the main device 1C even in this example. If the park hold operation source is the telephone 2C whose extension number is “3001” under the main device 1C, as shown in FIG. 5, the system number of the main device 1C (system 3) and the park hold operation source phone 2C Information consisting of the extension number (3001) is the hold source identification information.

  Further, in this example, the reserved line identification information is information indicating that the telephone 2B is subordinate to the main apparatus 1B. If the call line to be held is connected to the telephone 2B whose extension number is “2002” under the main apparatus 1B, as shown in FIG. 5, the system number (system 2) of the main apparatus 1B and Information including the extension number (2002) of the telephone 2B to be connected becomes the hold line identification information.

  The master main device 1A specifies which call line of which main device is the call line on hold specified by the hold line specifying information included in the park hold execution request from the main device 1C. Also in the second embodiment, what is put on hold is a telephone line connected between the telephone 2B of the main apparatus 1B. For this reason, the master main apparatus 1A forms a call line switching request to the main apparatus 1B and transmits it to the main apparatus 1B through the IP network 200A (step S86).

  In the main apparatus 1B that has received the switching request, when the hold state processing unit 153 functions under the control of the control unit 120 and switching of the communication line is not impossible, an “OK message” is formed and this is transferred to the IP The data is transmitted to the master main apparatus 1A through the network 200A (step S87). Note that, for example, when the communication line cannot be switched because the communication line to be switched is already disconnected, an “NG message” is transmitted from the main apparatus 1B to the master main apparatus 1A. In the case, the subsequent processing is interrupted.

  When the main apparatus 1B transmits an “OK message” to the master main apparatus 1A in response to a switching request from the master main apparatus 1A, the main apparatus 1B opens the telephone line connected to the main apparatus 1C. Then, a telephone line (call path) is newly connected to the master main apparatus 1A. Then, the master main apparatus 1A transmits a hold tone to the telephone 2B of the main apparatus 1B through a telephone line connected to the main apparatus 1B (step S88).

  Thereafter, the master main apparatus 1A transmits a park hold completion notification through the IP network 200A to the hold operation source main apparatus 1C specified by the hold operation source information of the park hold execution request received in step S85 ( Step S89). Even in the main apparatus 1C that has received the park hold completion notification, there is a process for confirming the release of the communication line that has been connected to the telephone 2B of the main apparatus 1B that has already been released from the main apparatus 1B side. Done.

  Thereafter, the hold state processing unit 153 of the master main apparatus 1A forms a park hold setting request under the control of the control unit 120, and supplies this to the other main apparatuses 1B, 1C, and 1D through the IP network 200A ( Steps S90, S91, S92). The park hold setting request includes the park hold button specifying information, hold operation source specifying information, and hold line specifying information included in the park hold execution request provided from the main apparatus 1C in step S85.

  In the main apparatuses 1B, 1C, and 1D that have received the park hold setting request, the first setting unit 151 functions under the control of the control unit 120, and setting of information in the park hold memory 140 and correspondence of the park hold button are performed. LED blinking control is performed (steps S93B, 93C, 93D). Specifically, in the main apparatuses 1B, 1C, and 1D, the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information are extracted from the park hold setting request received by the first setting unit 151, and these are parked. Set in the reserved memory 140. In addition, the first setting unit 151 of the main devices 1B, 1C, and 1D forms a control signal for causing the corresponding LED of the park hold button PK1 specified by the park hold button specifying information to blink, and this is set as a control unit It is sent to the LAN through 120 and supplied to the telephones 2B, 2C and 2D under its own machine.

  Also in the master main apparatus 1A, under the control of the control unit 120, the second setting unit 154 functions to set information in the park hold memory 140 and control blinking of the corresponding LED of the park hold button (step). S93A). Specifically, in master master device 1A, second setting unit 154 sets park hold button specifying information, hold operation source specifying information, and hold line specifying information included in the transmitted park hold setting request in park hold memory 140. To do. In addition, the second setting unit 154 forms a control signal for causing the corresponding LED of the park hold button PK1 specified by the park hold button specifying information to blink, and sends this to the LAN through the control unit 120 to be subordinated To the telephone 2A.

  By the processing of each step shown in FIG. 13, the master main apparatus 1A controls the main apparatuses 1B, 1C, and 1D constituting the telephone system in response to an operation on the park hold button of the telephone 2C under the control of the main apparatus 1C. To do. Then, the telephones 2A, 2B, 2C, and 2D subordinate to the main apparatuses 1A, 1B, 1C, and 1D that constitute the telephone system, including the master main apparatus 1A, can be parked.

  Then, as shown in FIG. 14, the master main unit 1A sends a hold sound to the main unit 1B through a telephone line that is in a park hold state and switched to be connected between the master main unit 1A and the main unit 1B. Is provided (step S101). In this case, as in the case of the first embodiment, the user of the telephone set 2C of the main apparatus 1C on which the park hold operation has been performed can perform a separate extension telephone call, a chat using a communication terminal such as a personal computer, Request the target party to respond to the park hold by e-mail. Also in the second embodiment, it is assumed that the user of the telephone 2C of the main apparatus 1C requests the user of the telephone 2D of the main apparatus 1D to respond to the park hold set in the park hold button PK1.

  In response to the response request to the park hold, the user of the telephone 2D of the main apparatus 1D performs a park hold response operation by pressing the park hold button PK1 with the corresponding LED blinking ( Step S102). In this case, in the telephone 2D in which the park hold button PK1 is operated, the control unit 220 forms a park hold response request including the park hold button specifying information indicating that the park hold button PK1 has been operated, and is automatically transmitted through the LAN. To the main device 1D to which the machine is connected.

  The control unit 120 of the main device 1D receives a park hold response request from the subordinate telephone 2D. In the main apparatus 1D, under the control of the control unit 120, the response processing unit 152 transmits the park hold information corresponding to the park hold button specified by the park hold button specifying information of the received park hold response request from the park hold memory 140. read out. The response processing unit 152 specifies which communication line of which main apparatus is the communication line in the hold state, based on the hold line specifying information of the read park hold information. Then, the response processing unit 152 forms a park hold response request for the main apparatus that is the counterpart of the communication line in the hold state, and transmits this request to the main apparatus that is the counterpart through the IP network 200A.

  In the case of this example, as described above, the call line connected to the telephone 2B of the main apparatus 1B is put on hold by the park hold operation of the telephone 2C of the main apparatus 1C. For this reason, it is possible to identify the call line that is put on hold by the park hold button PK1 as the call line connected to the telephone 2B of the main apparatus 1B based on the hold line specifying information in the park hold memory 140. . For this reason, the main apparatus 1D forms a park hold response request for responding to the call line held in the park hold button PK1 with respect to the main apparatus 1B, and transmits this request to the main apparatus 1B through the IP network 200A. (Step S103).

  In the main device 1B that has received the park hold response request, under the control of the control unit 120, the response processing unit 152 takes over the connected call line in response to the park hold response request to the telephone 2D of the main device 1D. Process. In this case, the response processing unit 152 of the main apparatus 1B forms an “OK message” for the main apparatus 1D, and returns this to the main apparatus 1D that is the request for the park hold response via the IP network 200A (step S104).

  Furthermore, the response processing unit 152 of the main apparatus 1B forms a call line disconnection request to the master main apparatus 1A that is transmitting the hold tone, and transmits this request to the master main apparatus 1A through the IP network 200A (step S105). .

  In the master main device 1A that has received the disconnection request, the hold state processing unit 153 functions under the control of the control unit 120, forms an “OK message”, and transmits it to the main device 1A (step S106). The transmission is stopped and the telephone line connected to the telephone 2B of the main device 1B is released. Thereafter, the response processing unit 152 of the main device 1B and the main device 1D connects the call line (call path) under the control of the control unit 120, and the call line with the telephone 2B of the main device 1B that has been put on hold. However, it is connected to the telephone 2D of the main apparatus 1D and the call is taken over (step S107).

  Then, in the master main apparatus 1A, under the control of the control unit 120, the setting cancellation unit 155 performs a park hold cancellation process. First, the setting release unit 155 forms a park hold release request including the park hold button specifying information and transmits it to the other main apparatuses 1B, 1C, and 1D through the IP network 200A (steps S108, S109, and S110).

  In each of the main apparatuses 1B, 1C, and 1D that have received the park hold release request, the setting release unit 155 functions under the control of the control unit 120, and performs a process of releasing the park hold for the park hold button PK1. Specifically, the setting cancellation unit 155 controls to erase the corresponding data in the park hold memory 140 and stop the blinking operation of the LED corresponding to the corresponding park hold button of the subordinate telephones 2B, 2C, and 2D. (Steps S111B, S111C, S111D). In this example, in the main apparatuses 1B, 1C, and 1D, data regarding the park hold button PK1 in the park hold memory 140 is deleted. In addition, the blinking of the LED corresponding to the park hold button PK1 of the telephones 2B, 2C, and 2D subordinate to each of the main devices 1B, 1C, and 1D is turned off (stopped).

  Also in the master main apparatus 1A, the setting release unit 155 functions under the control of the control unit 120, and performs a process of releasing the park hold for the park hold button PK1. Specifically, the setting canceling unit 155 controls to erase the corresponding data in the park hold memory 140 and stop the blinking operation of the corresponding LED of the corresponding park hold button of the subordinate telephone 2A (step S111A). . That is, in this example, the data regarding the park hold button PK1 in the park hold memory 140 is erased also in the master main apparatus 1A. Further, the blinking of the LED corresponding to the park hold button PK1 of the telephone 2A under the master main apparatus 1A is turned off (stopped).

  As described above, the telephone line 2D of the main apparatus 1D is connected to the telephone line 2B of the main apparatus 1B that has been put on hold by the park hold button PK1 by the series of processes described with reference to FIG. You can take over the call. And the hold state of the call line to the park hold button PK1 in each main apparatus 1A, 1B, 1C, 1D constituting the telephone system can be appropriately released.

  Thereafter, the call is terminated, and for example, the telephone 2D of the main apparatus 1D performs an on-hook operation to return the handset 206 to the telephone 2D, so that a disconnection request is transmitted from the main apparatus 1D to the main apparatus 1B (step). S112). In response to this, by performing an on-hook operation to return the handset 206 to the telephone 2B in the telephone 2B of the main apparatus 1B, an “OK message” is transmitted from the main apparatus 1B to the main apparatus 1D (step S113). . Thereby, the telephone line (call path) is also released. Here, although it has been described that the on-hook operation is performed from the telephone 2D under the control of the main apparatus 1D, it is of course possible to perform the on-hook operation from the telephone 2B of the main apparatus 1B. In this case, only the source and destination of the disconnection request and “OK message” are changed.

  As described above, in the case described with reference to FIGS. 13 and 14, the master main apparatus 1 </ b> A can control the own apparatus and other slave main apparatuses to realize the park hold function between the key telephone systems. Since the master main device 1A is the main control body, the master main device 1A collectively performs control when the park hold execution requests are overlapped. For this reason, in a plurality of telephones, the load related to the control when the same park hold button is operated at the same time can be concentrated on the master main apparatus 1A, and the control can be performed relatively easily.

[When park hold operation is performed on the phone under the master master unit]
In the second embodiment, the park hold function may be executed by operating the park hold button in the master main apparatus 1A. In this case as well, basically the same processing as that described with reference to FIGS. 13 and 14 is performed. However, since the main device that accommodates the telephone on which the park hold operation has been performed is the same as the master main device, the park hold execution request from the main device that accommodates the telephone on which the park hold operation has been performed to the master main device. Transmission of a park hold completion notification is not performed to the main apparatus that accommodates the transmission or the telephone on which the park hold operation has been performed from the master main apparatus. Also, the “OK message” and “NG message” that are performed in response to these notifications are not transmitted.

[Effect of the embodiment]
As described above, in a telephone system formed in a wide area by connecting a plurality of button telephone systems through a wide area network, the park hold function can be easily and reliably realized between the button telephone systems. Of course, the park hold function in the key telephone system can be performed as usual.

[Modifications, etc.]
As described above, when a telephone system is constructed in a wide area, the main apparatus 1A is a master main apparatus and the main apparatuses 1B and 1C are slave main apparatuses. However, the present invention is not limited to this. Since the main devices 1B, 1C, and 1D also have a function of becoming a master main device, it is possible to construct a telephone system using the main devices 1B, 1C, and 1D as the master main device. Further, the number of main devices constituting the telephone system is not particularly limited.

  In addition, when the master main unit and slave main unit are fixedly defined, the main unit that is the master main unit is equipped with only the function as the master main unit, and the main unit that is the slave main unit It is also possible to configure so that only the function as the slave main device is mounted. In the case of providing a function only as a master main apparatus, the first and second registration units 131A and 131B of the registration processing unit 131 and the distribution processing unit 132 may be provided. In addition, when a function only as a slave main device is provided, the third and fourth registration units 131C and 131D of the registration processing unit 131 may be provided.

  In the above-described embodiment, the system information set in advance for the master main apparatus 1A has been described as being registered through the PC connected through the external I / F 111 and the external terminal 112. However, the present invention is not limited to this. is not. For example, system information may be prepared in a predetermined server device provided on the IP network 200A, and the master main device 1A may access the server device to download predetermined system information. Similarly, information related to the master main device such as the IP address and password of the master main device registered in each slave main device is also prepared in a predetermined server device on the IP network 200A. Then, each slave main device may access the server device and download information on the prepared master main device. In this case, software for downloading data may be installed in the master main device or the slave main device, and this may be executed as necessary.

  In the embodiment described above, the telephone system is described as comprising the main device 1A of the head office (Tokyo), the main device 1B of the branch office 1 (Tohoku), and the main device 1C of the branch office 2 (Kansai). . However, it is not limited to this. For example, each of the Kanto region, the Tohoku region, and the Kansai region has a plurality of branches, and main devices are installed in these branches, and the main devices installed in the branches also connect communication paths through the IP network 200A. To build a telephone system.

  In this case, the group ID included in the common data is also used. That is, a group ID indicating the Kanto region is assigned to a main apparatus located in the head office, branch office, or branch located in the Kanto region. In addition, a group ID indicating the Tohoku region is assigned to a main apparatus located in the head office, branch office, or branch located in the Tohoku region. In addition, a group ID indicating the Kansai region is assigned to the main apparatus located in the head office, branch office, or branch located in the Kansai region.

  In this way, in the telephone system, when making an extension call between the button telephone systems, the group ID of the group to which the destination telephone belongs and the button telephone system based on the inputted extension number of the destination. Specify the system number. As a result, it is possible to appropriately grasp which group of which key telephone system the incoming callee belongs to, and to control to quickly connect the communication path. In this case, the address data storage unit 106 may store address data for each group ID.

  In the above-described embodiment, the priority order for becoming the master main device is set. For this reason, in the case of the above-described embodiment, when the main apparatus 1A installed in the head office becomes unmovable for some reason, the main apparatus 1B having the “second rank” wired order is the master. By becoming the main device, it is possible to avoid the disadvantage that the newly installed main device is not added to the telephone system.

  The processing shown in the sequence diagrams of FIGS. 11 to 12 and FIGS. 13 to 14 is also an example, and various changes can be made. The notification and confirmation processing of the park hold transition in step S49 and step S50 in FIG. 11 can be omitted. Further, either the storage of the park hold information in the park hold memory 140 or the blinking control of the LED corresponding to the park hold button of the subordinate telephone can be performed first. It is also possible to omit the notice of completion of the park hold transition from step S52 to step S53 in FIG. That is, the processing shown in the sequence diagrams of FIGS. 11 to 12 and FIGS. 13 to 14 can be appropriately changed.

  In the configuration of the main apparatus 1 shown in FIG. 2, each function of the registration processing unit 131, the distribution processing unit 132, and the connection state notification processing unit 133 is a function of the control unit 120 by a program executed in the control unit 120. It can also be realized. Similarly, the function of each unit of the park hold function execution unit 150 can be realized as a function of the control unit 120 by a program executed in the control unit 120.

  Further, in the above-described embodiment, when the park hold function is used, the LED corresponding to the park hold button that is set to put the call line being connected to the hold state blinks. However, it is not limited to this. When the park hold button is operated and the park hold function is executed, information on the telephone making the park hold request and the main device may be displayed on the display 214 of the telephone 2. Of course, one of the information of the telephone that has made the park hold request and the main apparatus can be displayed on the display 214 of the telephone 2.

  Thus, for example, “PK1: system 1 (head office): extension 1000” can be used to notify that the park hold button PK1 is used on the extension number 1000 telephone of the system 1 (head office). Further, a notification that the park hold button PK1 is used in the system 1 (head office), such as “PK1: system 1 (head office)”, or a park hold button PK1, such as “PK1: extension 1000” is used. However, it can be notified that it has been used on the extension number 1000 telephone.

  In addition, when the park hold button is operated and the park hold function is executed, information indicating a telephone line set to the operated park hold button can be displayed on the display 214 of the telephone set 2. . For example, the park hold button PK1 can indicate that the call line between the extension 2000 telephone of the system 2 is put on hold, such as “PK1: destination: system 2: extension 2000”. . Of course, both the hold operation source and the held call line can be displayed on the display 214 of the telephone 2.

  The display of these pieces of information on the display 214 of the telephone 2 is realized by forming a display control signal for the subordinate telephone 2 in the control unit 120 of the main apparatus 1 and providing it to the subordinate telephone 2 through the LAN. it can. Each telephone 2 receives a display control signal from the main device 1 through the connection terminal 201 and the LAN I / F 202, and the control unit 220 controls the display controller 213 to realize display of target information on the display 214. it can.

  In the first and second embodiments described above, the case where an extension telephone is held using the park hold function has been described as an example. However, an external telephone can be held using the park hold function in the same manner. . That is, for example, an outside line call received by the telephone 2A (1) of the head office (system 1) is put on hold at the park hold button PK1. Then, by pressing the park hold button PK1 on the telephone 2C (1) of the branch office 2 (system 2), it is possible to receive the external line telephone call on the telephone 2C (1) of the branch office 2 (system 2). .

  In the above-described embodiment, the case where the main apparatus is connected through the IP network 200A to construct a wide-area telephone system has been described as an example. However, for example, through a network other than the IP network 200A such as a dedicated line. The present invention can also be applied to a case where a telephone system is constructed by connecting main apparatuses. In this case, the address data includes identification information that can identify the main device such as a representative telephone number.

[Others]
As can be seen from the description of the embodiment described above, the function of the system information storage unit is realized by the system information storage unit including the address data storage unit 106 and the numbering plan data storage unit 107 of the main device 1. Further, the park hold information storage means function is realized by the park hold memory 140 of the main device 1. The functions of the transmission means or reception means such as setting request reception means, setting request transmission means, release request transmission means, release request reception means, execution request reception means, slave side release request reception means, disconnection request reception means, etc. The connection terminal and the IP network I / F of the device 1 and the control unit 120 are realized in cooperation. The functions of the response notification receiving unit, the hold notification receiving unit, and the execution notification receiving unit are realized by the connection terminal 110 and the LAN I / F 109 of the main apparatus 1 and the control unit 120 working together.

The functions of the first setting means and the first setting display control means are realized mainly by the first setting unit 151 of the main device 1, and the functions of the response processing means and the disconnection request transmission processing means are the main device. 1 response processing unit 152 is realized. The functions of the hold state processing unit and the master side release request transmission processing unit are realized by the hold state processing unit 153 of the main device 1. The functions of the second setting means and the second setting display control means are realized mainly by the second setting unit 154 of the main device 1. Each function of the setting release means, the release display control means, the slave side setting release means, the second release display control means, the master side setting release means, and the master side release display control means is a setting release unit 155 of the main device 1. Is realized.

  In addition, the method corresponding to the operation (processing) of the telephone system described with reference to the sequence diagrams of FIGS. 11 to 12 and FIGS. 13 to 14 is applied to one embodiment of the park hold control method of the present invention. Is. In addition, in the operation (processing) of the telephone system described with reference to the sequence diagrams of FIGS. 11 to 12 and FIGS. 13 to 14, a program for executing processing performed in each main device is created, The telephone control device according to the present invention can also be configured by mounting it on the telephone.

  That is, as described above, the function of each unit of the park hold function execution unit 150 illustrated in FIG. 2 can be realized by a program (software) executed by the control unit 120.

  DESCRIPTION OF SYMBOLS 1, 1A, 1B, 1C, 1D ... Main apparatus, 101 ... Connection terminal to IP network, 102 ... IP network I / F, 103 ... Packet disassembly / generation part, 104 ... Telephone network I / F, 105 ... Telephone network 106 ... Address data storage unit, 107 ... Number plan data storage unit, 108 ... Master information memory, 109 ... LAN I / F, 110 ... Connection terminal to LAN, 111 ... External I / F, 112 ... External Terminals 120, control unit 131, registration processing unit 132, distribution processing unit 133, connection state notification processing unit 140, park hold memory 150, park hold function execution unit 151, first setting unit 152 ... response processing unit, 153 ... hold state processing unit, 154 ... second setting unit, 155 ... setting release unit, 2A (1), 2A (2), ... telephone, 2B (1), 2B (2), ... Telephone, 2C (1 , 2C (2), ... telephone, 2D (1), 2D (2), ... telephone, PK1~PK4 ... park hold button

Claims (6)

A plurality of telephone control devices capable of accommodating one or more telephone terminals having a park hold button are the telephone control devices of the telephone system configured to be connected through a wide area network,
In order to connect a communication path with another telephone control device through the wide area network, and to enable a call between the telephone terminal accommodated in the other telephone control device and the telephone terminal accommodated in the own device. System information storage means for storing the system information of
By operating the park hold button, the park hold button specifying information for specifying the operated park hold button, the hold operation source specifying information for specifying the execution source of the park hold for which the park hold button has been operated, and the park hold button are operated. Park hold information storage means for storing hold line specifying information for specifying a call line put on hold;
A park hold setting request including the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information transmitted from the other telephone control device of the telephone system through the wide area network is received. A setting request receiving means;
When the park hold setting request is received through the setting request receiving means, the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information included in the park hold setting request are included in the park. First setting means for setting the hold information storage means ;
When receiving the park hold setting request through the setting request receiving means, for each of the telephone terminals accommodated in the own device, for the park hold button specified by the park hold button specifying information of the park hold setting request First setting display control means for displaying that the call line is set to the hold state;
In the telephone terminal accommodated in the device, when the park hold button in which the call line is set to the hold state is operated in response to the park hold setting request, the operated park hold provided from the telephone terminal is operated. A response notification receiving means for receiving a park hold response notification including the park hold button specific information corresponding to the button;
When the park hold response notification is received through the response notification receiving means, it is specified by the telephone terminal accommodated in the own device that has transmitted the park hold response notification and the setting information of the park hold information storage means. And a response processing means for connecting a call line placed on hold to enable a call. The telephone control device according to claim 1,
Provided from the telephone terminal when a park hold button whose call line is not set to a hold state is operated in response to the park hold setting request in the telephone terminal during a call accommodated in the own device, A hold notification receiving means for receiving a park hold notification including the park hold button specifying information;
When the park hold notification is received through the hold notification reception unit, a hold state processing unit that puts the call line connected to the telephone terminal that is the transmission source of the park hold notification into a hold state;
When receiving the park hold notification through the hold notification receiving means, forming the park hold setting request including the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information, Setting request transmission means for transmitting to other telephone control devices of the telephone system through a wide area network;
When the park hold notification is received through the hold notification receiving means, the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information are set in the park hold information storing means . Setting means,
When the park hold notification is received through the hold notification receiving means, a call is made to the park hold button specified by the park hold button specifying information of the park hold notification for each of the telephone terminals accommodated in the own device. Second setting display control means for displaying that the line has been set to the hold state;
When a call can be made by the response processing means, a park hold release request including the park hold button specifying information for specifying the operated park hold button is formed, and the other telephones of the telephone system through the wide area network Release request transmission means for transmitting to the control device;
Cancellation request receiving means for receiving the park hold cancellation request transmitted from the other telephone control device of the telephone system through the wide area network;
Setting information of the park hold information storage means specified by the park hold button specifying information when the call can be made by the response processing means and when the park hold release request is received through the release request receiving means A setting canceling means for canceling
When the call is allowed to be made by the response processing means and when the park hold release request is received through the release request receiving means, for each of the telephone terminals accommodated in the own device, the park hold button specifying information is used. A telephone display apparatus comprising: a release display control means for canceling an indication that a call line is set to a hold state for a specified park hold button. The telephone control device according to claim 1,
It is determined that one of a plurality of telephone control devices constituting the telephone system is a master telephone control device and the other is a slave telephone control device,
The telephone control device, which is the slave telephone control device,
Provided from the telephone terminal when a park hold button whose call line is not set to a hold state is operated in response to the park hold setting request in the telephone terminal during a call accommodated in the own device, A hold notification receiving means for receiving a park hold notification including the park hold button specifying information;
When the park hold notification is received through the hold notification receiving means, a park hold execution request including the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information is formed, and the wide area A hold state processing means for transmitting to at least the master telephone control device through a network and placing a call line connected to a telephone terminal that is a transmission source of the park hold notification;
The telephone control device serving as the master telephone control device is:
Execution request receiving means for receiving the park hold execution request from the slave telephone control device;
When the park hold execution request is received through the execution request receiving means, the park includes the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information included in the park hold execution request. A setting request transmitting means for forming a hold setting request and transmitting to each slave telephone control device through the wide area network;
When the park hold execution request is received through the execution request receiving means, the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information are set in the park hold information storing means. Two setting means;
When the park hold execution request is received through the execution request receiving means, for each of the telephone terminals accommodated in the own device, for the park hold button specified by the park hold button specifying information of the park hold setting request And a second setting display control means for displaying that the call line is set to the on-hold state. The telephone control device according to claim 1,
It is determined that one of a plurality of telephone control devices constituting the telephone system is a master telephone control device and the other is a slave telephone control device,
The telephone control device serving as the master telephone control device is:
A park terminal provided by the telephone terminal when a park hold button whose call line is not set to a hold state is operated in response to the park hold setting request in the telephone terminal during a call accommodated in its own device. An execution notification receiving means for receiving a park hold execution notification including hold button specifying information;
When the park hold execution notification is received through the execution notification reception unit, a hold state processing unit that places the call line connected to the telephone terminal that is the transmission source of the park hold execution notification into a hold state;
When the park hold execution notification is received through the execution notification receiving means, the park hold setting request including the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information is formed. Setting request transmission means for transmitting to each slave telephone control device of the telephone system through the wide area network;
When the park hold execution notification is received through the execution notification receiving means, the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information are set in the park hold information storing means . Two setting means;
When the park hold execution notification is received through the execution notification receiving means, for each of the telephone terminals accommodated in the own device, for the park hold button specified by the park hold button specifying information of the park hold setting request And a second setting display control means for displaying that the call line is set to the on-hold state. The telephone control device according to any one of claims 3 and 4,
The slave telephone control device that has held the call line in the on-hold state forms a disconnection request for the call line connected to the master phone control device for transmission of a hold sound, and A disconnection request transmission processing means for transmitting to the master telephone control device of the telephone system through a wide area network;
The telephone control device, which is a slave telephone control device of the telephone system,
A slave-side release request receiving means for receiving a second park hold release request including the park hold button specifying information transmitted from the master telephone control device of the telephone system through the wide area network;
The park hold information specified by the park hold button specifying information when the call can be made by the response processing means and when the second park hold release request is received through the slave release request receiving means. Slave side setting release means for releasing the setting information of the storage means ;
For each of the telephone terminals accommodated in its own device when the call can be made by the response processing means and when the second park hold release request is received through the slave side release request receiving means, A second release display control means for releasing the indication that the call line is set to the hold state for the park hold button specified by the hold button specifying information;
The telephone control device serving as the master telephone control device is:
A disconnection request receiving means for receiving the disconnection request from the slave telephone controller,
By the response processing unit, and if you allow the call, when receiving the disconnection request through the disconnection request receiving means, said second parked release request including said parked button identifying information, the wide Master side release request transmission processing means for transmitting to each slave telephone control device of the telephone system through a network;
By the response processing unit, and if you allow the call, when receiving the disconnection request through the disconnection request receiving means, setting information of the parked information storage means identified by said call park button identifying information Master side setting cancellation means to cancel,
By the response processing unit, and if you allow the call, when receiving the disconnection request through the disconnection request receiving means, for each of the telephone terminals accommodated in the own apparatus, specified by the call park button identifying information And a master-side release display control means for releasing the indication that the call line is set to the hold state for the park hold button. There is a park hold control method used in the telephone control device of a phone system in which a plurality of telephone control devices capable of accommodating one or more phone terminals having a park hold button are connected through a wide area network.
Each of the telephone control devices connects a communication path to another telephone control device through the wide area network, and a telephone terminal accommodated in the other telephone control device and a telephone terminal accommodated in the own device System information storage means for storing system information for enabling communication between the two, a park hold button specifying information for specifying the operated park hold button, and a park hold execution operation in which the park hold button is operated Park hold information storage means for storing hold operation source specifying information for specifying the source, and hold line specifying information for specifying a call line put on hold by operating the park hold button,
In each of the telephone control devices,
A park including the park hold button specifying information, the hold operation source specifying information, and the hold line specifying information transmitted from the other telephone control device of the telephone system through the wide area network through the setting request receiving means. A setting request receiving step for receiving a hold setting request;
When the park hold setting request is received in the setting request receiving step, the first setting means includes the park hold button specifying information, the hold operation source specifying information, and the hold included in the park hold setting request. A first setting step of setting line identification information in the park hold information storage means ;
When the park hold setting request is received in the setting request receiving step, the first setting display control means determines the park hold button specifying information of the park hold setting request for each of the telephone terminals accommodated therein. A first setting display control step for displaying that the call line is set to the hold state with respect to the park hold button specified by:
In the telephone terminal accommodated in the device, when the park hold button in which the call line is set to the hold state is operated in response to the park hold setting request, a response notification receiving means is provided from the telephone terminal. A response notification receiving step for receiving a park hold response notification including park hold button specific information corresponding to the operated park hold button;
When the park hold response notification is received through the response notification receiving step , the response processing means includes a telephone terminal accommodated in the own device that has transmitted the park hold response notification, and the park hold information storage means. A park processing control method comprising: a response processing step of connecting a call line placed in a hold state specified by setting information and making a call.

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