JP2012213099A - Telephone system, dock device, portable terminal, and method for apparatus connection in telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a portable terminal having a display element with a relatively large display screen in a telephone system formed in a company or the like for a wide range of effective use.SOLUTION: When a cellphone terminal 5 is connected to an external terminal of a dock device 4, a terminal registration/deregistration processing section registers the device itself in a SIP server 1 as a subordinate telephone terminal. The dock device 4 connects a channel (communication line) to a desired opposite party in response to an incoming call or by making a call, so that a handset 406 can be used for a telephone call. The dock device 4 controls the cellphone terminal 5 connected thereto with a display control message from an internal display control message providing section to use it as a display device of the telephone terminal comprising the dock device 4 and the cellphone terminal 5.

Description

  The present invention relates to a telephone system configured by connecting a communication device to an exchange device such as a SIP (Session Initiation Protocol) server or a main device, and each device and method used in the system.

  Mobile phone terminals have become a necessity as a means to ensure contact with business partners and affiliated companies, for those who are engaged in work that frequently goes out and work that often involves work outdoors. It is also considered to use a mobile phone terminal as a telephone of a telephone system formed in the company when the user is in the company (is present). In this case, the connection of the mobile phone terminal to the telephone system uses radio, and the mobile phone terminal is called on the condition that it is located within the communication range of a specific access point (AP) provided in the telephone system. It is made to operate as a system telephone. Further, when the mobile phone terminal moves out of the range of the specific access point, the mobile phone terminal returns to the mobile phone terminal that performs communication through the original mobile phone network (3G line).

  In Non-Patent Document 1 and Non-Patent Document 2 described later, examples of technologies (services) that make it possible to use a mobile phone terminal as described above as a telephone of a talk system provided in a company or the like are introduced. Yes. However, when a mobile phone terminal is used as a telephone of a telephone system, there is a case in which communication via wireless is likely to be affected by obstacles and noise, and cannot maintain stable communication quality. . In connection with this, in Patent Document 1 described later, when a wireless LAN (Local Area Network) device that is wirelessly connected to and communicates with an access point is connected to a charging stand connected to a wired LAN, A technique for enabling communication by connecting to a wired LAN through a charging stand is disclosed.

JP 2001-274809 A

Phone ubiquitous (national extension solution) [searched on January 17, 2011], Internet <URL: http://www.ntt.com/ubi-voip/data/dial in.html? Banner id = k g ubvo002> Cordless system for offices (searched on January 17, 2011), Internet <URL: http // www.willcom-inc.com / en / biz / service / cordless / index.html>

  However, in the above-mentioned Patent Document 1, since it is not assumed that a telephone call is made, there is no description about the telephone call control. That is, Patent Document 1 describes processing (control) until a wireless LAN terminal is connected to a wired LAN, a communication path (communication line) is connected to a target partner, and a call is made. Is not explained. For this reason, even if the technology described in Patent Document 1 is applied to a telephone system constructed in a company or the like, the mobile phone terminal can simply be connected to the wired LAN through the charging stand. Therefore, with the technology described in Patent Document 1 alone, the mobile phone terminal is connected to the telephone system, and the communication path is actually connected to the target party by making a call or receiving a call. However, it is not possible to make a call.

  In recent years, a high-function mobile phone terminal called a smart phone or a mobile communication terminal (mobile information terminal) called a pad type information terminal or a tablet type information terminal having a communication function has come to be used. It is coming. Various dedicated electronic book reader devices have also been provided. These smart phones, pad-type information terminals, and electronic book reader devices are provided with a display element having a large display screen, and can appropriately provide various display information to the user. Devices such as smart phones, pad-type information terminals, and e-book reader devices can be used not only mainly on the go, but also connected to a telephone system, for example, in a company where you belong. It is hoped that it can be used more effectively.

  In view of the above, the present invention makes it possible to use a portable terminal having a display element having a relatively large display screen in a telephone system formed in a company, etc., thereby expanding the range of use and more effectively. The purpose is to be able to utilize.

In order to solve the above-mentioned problem, the telephone system according to the first aspect of the present invention provides:
A telephone system formed by connecting a dock device to an exchange device connected to a wide area network and connecting a mobile terminal to the dock device,
The dock device is
A first connection end enabling connection to the exchange device;
A second connection end for enabling connection of the mobile terminal;
A handset and transmitter;
Call voice processing means for processing a received voice to be supplied to the receiver and a transmitted voice from the transmitter so as to make a call;
An operation input means for receiving an operation input from a user;
Terminal registration processing means for registering the mobile device as a subordinate telephone terminal with respect to the switching device when the portable terminal is connected to the second connection end;
Message processing means for processing message information for control to be transmitted to and received from the switching device connected through the first connection end;
Display control message providing means for forming message information for display control for the portable terminal connected through the second connection end and providing the message information to the portable terminal;
The portable terminal is
A connection end for an external device that allows connection to the dock device;
Display means;
Display control means for controlling display processing on the display means based on the message information for display control from the dock device connected through the connection end for the external device.

  According to the telephone system of the first aspect of the present invention, in the telephone system, a dock device is connected to the exchange device, and a portable terminal having a display element is connected to the dock device. To be formed. In the dock device, when the portable terminal is connected through the second connection end, the terminal registration processing means registers the own device as a subordinate telephone terminal with respect to the switching device. The dock device includes a handset and a transmitter, a speech voice processing unit, and an operation input unit, and can process various control message information transmitted to and received from the switching device by the message processing unit. Is. As a result, the dock device responds to an incoming call or makes a call from its own device by connecting a communication path (communication line) to the intended destination. The

  On the other hand, when the portable terminal is connected to the dock device through the external device connection end of its own device, it receives message information for display control from the dock device, and displays it by the display control means based on the message information. The display process on the means is controlled. That is, in the portable terminal, various information can be displayed on the display screen of the display element in accordance with the display control message information from the dock device.

  As described above, when the portable terminal is connected to the dock device, the dock device and the portable terminal become telephone terminals under the switching device. And the telephone terminal which consists of a dock apparatus and a portable terminal uses the said portable terminal as a display device (display interface), and while displaying required information appropriately on the display element of a portable terminal, the receiver of a dock apparatus, A high-quality call can be made through the transmitter.

  According to the present invention, the docking device and the portable terminal having a display element having a relatively large display screen constitute a telephone terminal under the switching device so that the portable terminal can also be used as a display device of the telephone terminal. The range of use can be expanded and mobile terminals can be used more effectively. In addition, a high-quality call can be performed through a telephone terminal composed of a dock device and a portable terminal.

It is a figure for demonstrating the outline | summary of the telephone system of embodiment. 2 is a block diagram for explaining an example of the configuration of a SIP server 1. FIG. It is a figure for demonstrating the structural example of the management information (database) formed in address management DB106. 4 is a block diagram for explaining an example of the configuration of a dock device 4. FIG. 6 is a diagram for explaining an example of information managed in a connection terminal registration memory 421. FIG. FIG. 3 is a block diagram for explaining a configuration example of a mobile phone terminal 5. FIG. 10 is a sequence diagram for explaining processing when a call is made in response to an incoming call through a telephone terminal including a dock device 4 and a mobile phone terminal 5. FIG. 8 is a sequence diagram following FIG. 7. FIG. 11 is a sequence diagram for explaining processing when a call is made by making a call through a telephone terminal including a dock device 4 and a mobile phone terminal 5. FIG. 10 is a sequence diagram following FIG. 9. It is a sequence diagram for demonstrating the process at the time of making it isolate | separate the mobile telephone terminal 5 from the dock apparatus 4. FIG.

  Hereinafter, an embodiment of a system, apparatus, and method according to the present invention will be described with reference to the drawings. In the embodiment described below, for example, when the present invention is applied to an IP telephone system that is a button telephone system formed in an office and can perform telephone communication through an IP (Internet Protocol) network Will be described as an example.

[Outline of telephone system]
FIG. 1 is a diagram for explaining the outline of the telephone system of this embodiment. As shown in FIG. 1, in the telephone system of this embodiment, a dock device 4 is connected to a SIP server 1 through a hub device 3, and a mobile phone terminal 5 as a mobile terminal is connected to the dock device 4. Configured. In this example, the SIP server 1 and the hub device 3 are connected by a LAN cable 2A, and the hub device 3 and the dock device 4 are connected by a LAN cable 2B.

  In addition, between the dock device 4 and the mobile phone terminal 5, connection terminals compliant with the USB (Universal Serial Bus) standard provided for each are wired. For example, the dock device 4 is provided with a USB standard male terminal, and the mobile phone terminal 5 is provided with a USB standard female terminal so that they can be directly connected. Of course, it is also possible to connect the dock device 4 and the mobile phone terminal 5 with a USB cable.

  The hub device 3 is a so-called concentrator, and includes a plurality of connection terminals as shown in FIG. Therefore, a plurality of dock devices and the like can be connected to the SIP server 1 via the hub device 3 via a LAN. In this embodiment, for simplicity of explanation, an example in which one dock device 4 is connected to the SIP server 1 via the hub device 3 is shown.

  As shown in FIG. 1, the SIP server 1 is connected to the IP network 6 and the telephone network 7, and performs address resolution between terminals that connect communication paths (communication lines). In other words, the SIP server 1 has a registrar server function and a proxy server function. By using these functions, the SIP server 1 can be connected to a device in the telephone system connected to the LAN, or to a device connected to the LAN. A communication path can be connected to a device connected to the IP network 6 or the telephone network 7. In this embodiment, it is assumed that, for example, an IP address “192.168.1.1” is assigned to the SIP server 1 as shown in FIG.

  The IP network 6 is a network that performs communication using IP (Internet Protocol), and is specifically the Internet. The telephone network 7 is a third-generation high-speed cellular phone network called an analog public switched telephone network (PSTN), a digital network (ISDN), a 3G circuit, or the like. (Mobile phone network) and the like.

  As will be described in detail later, the dock device 4 is connected to the mobile phone terminal 5 to form a phone terminal under the SIP server 1 together with the mobile phone terminal 5. For this reason, as shown in the lower side of the dock device 4 in FIG. 1, extension registration data for the own device to become a telephone terminal under the control of the SIP server 1 is preset in the memory of the dock device 4. . Here, the extension registration data set in the dock device 4 shown in FIG. 1 is an extension number “2010”, an IP address “192.168.1.10”, and a port number “5060”.

  As shown in FIG. 1, the dock device 4 includes a handset 406 having a receiver and a transmitter, and an operation input unit 408 having numeric keys and various function keys. When the dock device 4 is a phone terminal under the control of the SIP server 1 together with the mobile phone terminal 5 connected thereto, the dock device 4 becomes a main part of the phone terminal, and the mobile phone terminal 5 is connected to its own device. It has a function of enabling connection and controlling so that a communication can be made by connecting a communication path. In other words, the dock device 4 makes a call in response to an incoming call or by making a call operation through the operation input unit 408 to connect a communication path and make a call through the handset 406. It can be done.

  In this case, the dock device 4 can display various information such as the telephone number of the other party and the call time by using the mobile phone terminal 5 connected to the own device as a display device (display interface). ing. That is, the mobile phone terminal 5 connected to the dock device 4 serves as a display device (display interface) portion of the phone terminal configured together with the dock device 4, and the dock device 4 performs display control for performing display control of the mobile phone terminal 5. The function as the subject of

  In addition, when this is used alone, the mobile phone terminal 5 can make a call by connecting a communication path through a mobile phone network (3G line). In addition, the mobile phone terminal 5 can connect to the Internet through a mobile phone network, browse web pages, download and upload various information, and send and receive e-mails. Is.

  As described above, the telephone system according to the present embodiment connects the mobile phone terminal 5 to the dock device 4 that is LAN-connected to the SIP server 1, so that the dock device 4 and the mobile phone terminal 5 A telephone terminal under the control of the SIP server 1 is configured. The high-quality telephone call can be performed using the handset 406 of the dock device 4, and necessary display information is displayed on the display of the mobile phone terminal 5 having a relatively large display screen, so that the user can satisfactorily perform. To be able to provide. In the case of a USB standard interface, a power supply line is also provided, so that a charging current can be supplied from the dock device 4 to the mobile phone terminal 5 so that the battery of the mobile phone terminal 5 can be charged. Yes. Hereafter, each apparatus which comprises the telephone system of this embodiment is demonstrated concretely.

[Configuration Example of SIP Server 1]
First, the SIP server 1 of the telephone system of this embodiment will be described. FIG. 2 is a block diagram for explaining a configuration example of the SIP server 1. As shown in FIG. 2, the SIP server 1 includes a connection terminal 101 to the IP network 6, an IP network interface (hereinafter abbreviated as IP network I / F) 102, and a packet decomposition / generation unit 103. ing. The SIP server 1 includes a telephone network interface (hereinafter abbreviated as a telephone network I / F) 104, a connection terminal 105 to the telephone network 7, and an address management database (hereinafter abbreviated as an address management DB). 106. Furthermore, the SIP server 1 includes a LAN interface (hereinafter abbreviated as “LAN I / F”) 107, a LAN connection terminal 108, and a control unit 110.

  The control unit 110 controls each unit of the SIP server 1 according to this embodiment, and as shown in FIG. 2, a CPU (Central Processing Unit) 111, a ROM (Read Only Memory) 112, a RAM (Random Access Memory). ) 113 is a microcomputer configured by being connected through the system bus 114. Here, the CPU 111 executes a program stored in the ROM 112 to generate a control signal for controlling each unit and supply the control signal to each unit or process information from each unit. . As described above, the ROM 112 stores and holds various programs executed by the CPU 111 and various data necessary for processing.

  The RAM 113 is mainly used as a work area, such as temporarily storing intermediate results of processing. Although not shown, for example, a nonvolatile memory such as an EEPROM (Electrically Erasable and Programmable ROM) or a flash memory is provided, and data to be retained even when the power is turned off, for example, various setting parameters and functions are improved. It is possible to store and hold new programs provided for the purpose.

  The connection terminal 101 constitutes a connection end to the IP network 6. The IP network I / F 102 receives a packet supplied through the IP network 6, converts it into a packet in a format that can be processed by itself, and supplies the packet to the control unit 110. The IP network I / F 102 converts a packet to be transmitted supplied through the control unit 110 into a packet in a transmission format, and transmits the packet to the IP network 6.

  The connection terminal 105 constitutes a connection end to the telephone network 7. The telephone network I / F 104 receives data supplied through the telephone network 7, converts the data into data in a format that can be processed by the own device, and supplies the data to the control unit 110. Further, the telephone network I / F 104 converts data to be transmitted supplied through the control unit 110 into data in a transmission format, and transmits the data to the telephone network 7.

  The connection terminal 108 constitutes a connection end to the LAN. The LAN I / F 107 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 110. The LAN I / F 107 converts a packet to be transmitted supplied through the control unit 110 into a packet in a format for transmission, and transmits this to the LAN.

  The packet decomposition / generation unit 103 performs packet decomposition and generation. Specifically, a packet to be transmitted to a terminal device connected to the telephone network 7 from a telephone terminal (IP telephone terminal) connected to the SIP server 1 through the LAN is transmitted through the connection terminal 108 and the LAN I / F 107. It is received by the control unit 110. The packet is supplied from the control unit 110 to the packet decomposing / generating unit 103, where the packet is disassembled, and then transmitted to the telephone network 7 through the telephone network I / F 104 and the connection terminal 105, and transmitted to the intended destination. To be done.

  Data from a terminal device connected to the telephone network 7 to a subordinate telephone terminal connected to the SIP server 1 through the LAN is received by the control unit 110 through the connection terminal 105 and the telephone network I / F 104. The data is supplied from the control unit 110 to the packet decomposing / generating unit 103, where the packet is converted into a packet of a predetermined format, and then sent to the LAN through the LAN I / F 107 and the connection terminal 108 to the target telephone terminal. To be sent.

  Packets are transmitted and received between a terminal connected to the IP network 6 and a telephone terminal connected to the SIP server 1 through a 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 107 prepare the data format and transmit / receive it as it is. Similarly, since packets are transmitted and received between devices such as telephone terminals connected to the SIP server 1 through the LAN, the packet disassembly / generation unit 103 does not disassemble or generate packets. Packets are transmitted and received through F107.

  The address management DB 106 is connected to the IP network 6 or the LAN to realize the registrar server function, and stores and holds address information about a terminal device that may be called through the SIP server 1. Specifically, the control unit 110 of the SIP server 1 receives registration requests (register requests) from various terminal devices connected thereto through the IP network I / F 102 and the LAN I / F 107. In this case, the control unit 110 extracts address information and the like included in the received request. Then, the control unit 110 registers the extracted address information or the like in the address management DB 106, or updates the registration information in the address management DB 106 using the extracted address information or the like.

  In this way, information registered and managed in the address management DB 106 is referred to, and the communication destination requested from the telephone terminal or the like connected to the own device through the LAN is surely specified. The SIP server 1 realizes a function as a proxy server that transfers information (packet data) to be transmitted to the specified partner. The information registered and managed in the address management DB 106 is also used for discrimination of incoming calls to telephone terminals connected to the own device through the LAN.

  FIG. 3 is a diagram for describing a configuration example of management information (database) formed in the address management DB 106. The address management DB 106 of the SIP server 1 manages address information about telephone terminals connected to the SIP server 1 through a LAN, in addition to address information of terminals of other IP telephone systems connected to the IP network 6. It is something that can be done.

  In the address management DB 106 of the SIP server 1 of this embodiment, as shown in FIG. 3, the extension number, IP address, port number, and other various information are stored for the telephone terminal connected to the SIP server 1 via the LAN. You will be able to register and manage. Here, the extension number and the IP address are assigned in advance to the telephone terminal under the control of the SIP server 1. The port number is information for specifying a port used for transmission / reception of information between the SIP server 1 and the telephone terminal, and the information is also determined in advance. As other information, for example, a Uniform Resource Identifier (URI), a Media Access Control (MAC) address, and the like can be registered and managed.

  In addition, the management information about the terminal device connected to the IP network 6 managed in the address management DB 106 of the SIP server 1 of this embodiment includes the URI (SIP URI) transmitted from the terminal device and the IP address. It is. In addition, it is also possible to manage other transmitted information such as a MAC address.

  Then, it is assumed that the SIP server 1 receives a call request (call request) from a telephone terminal under the SIP server 1 to the terminal device connected to the IP network 6 in the telephone system of this embodiment. In this case, the control unit 110 of the SIP server 1 specifies a target destination terminal device based on the management information of its own address management DB 106, and transfers a message to the specified terminal device. .

  Similarly, a call request (call request) is made from a telephone terminal under the SIP server 1 to another telephone terminal under the SIP server 1 connected to the SIP server 1 from the telephone terminal under the SIP server 1 in this embodiment. It is assumed that the SIP server 1 has accepted. In this case, the control unit 110 of the SIP server 1 identifies the target telephone terminal of the other party based on the management information of its own address management DB 106, and forwards the message to the identified telephone terminal. .

  Further, it is assumed that the SIP server 1 accepts an incoming call request (outside line incoming call) to a telephone terminal connected to the local machine via the IP network 6 or the telephone network 7. In this case, the control unit 110 of the SIP server 1 receives the transmitted message and sends it to the own system. Note that even if the incoming call is an outside line, the SIP server 1 is used in the case of, for example, an individual incoming call (incoming call specifying a destination IP telephone terminal) or an outgoing / incoming call of an extension of a telephone terminal connected to the SIP server 1 via a LAN. Specify the other party and notify the incoming call. In other words, in this case, the control unit 110 of the SIP server 1 specifies the target telephone terminal of its own subordinate based on the management information of its own address management DB 106, and designates the specified telephone terminal of its own subordinate. On the other hand, the message is transferred.

  Further, when an IP telephone number is used for outgoing calls, although not shown in FIG. 1, a gateway or DNS (Domain Name System) connected to the IP network 6 is used to start from an IP telephone number. A URI or the like is retrieved and used. Similarly, when a call is made from the other party to the telephone terminal under the SIP server 1 of the telephone system of this embodiment using the IP telephone number, the gateway or DNS connected to the IP network 6 is also the same. Is used and a URI or the like is retrieved from the IP telephone number and used.

  In addition, the control unit 110 can grasp a communication line in use or an empty communication line through the IP network I / F 102, the telephone network I / F 104, and the LAN I / F 107 so that the circuit can be appropriately exchanged. ing. In addition, the control unit 110 forms control information for controlling lighting and extinguishing of LEDs and the like to be supplied to each telephone terminal connected through the LAN according to the grasped usage state of the communication line. The control information is transmitted to the LAN through the LAN I / F 107 and the connection terminal 108, and is transmitted to each telephone terminal and the like.

  As described above, the SIP server 1 of this embodiment includes the packet decomposition / generation unit 103 and the address management DB 106, and relays messages between terminals connected to various networks to which the SIP server 1 is connected. It is something that can be done. Therefore, the main apparatus 1 of this embodiment can perform connection between external lines and internal lines, connection between internal lines, and can notify a subordinate radio communication terminal of the use status of a communication line.

  As described above, in this embodiment, when the mobile phone terminal 5 is connected to the dock device 4 connected to the SIP server 1, the dock device 4 and the mobile phone terminal 5 are It becomes a telephone terminal under the control of the SIP server 1. In this case, the dock device 4 provides extension registration data (extension number, IP address, port number) to the SIP server 1 and registers itself as a telephone terminal under the SIP server 1.

  As a result, in the SIP server 1, the extension management data from the dock device 4 is managed in the address management DB 106 as described with reference to FIG. That is, a terminal device composed of the dock device 4 and the mobile phone terminal 5 can be managed by the SIP server 1 as a telephone terminal under the control of the SIP server 1. Further, when the mobile phone terminal 5 connected to the dock device 4 is disconnected, the dock device 4 provides the SIP server 1 with a request to cause the own device to leave the subordinate phone terminal. . In this case, in the SIP server 1, the extension registration data of the dock device 4 is deleted from the address management DB 106, and the dock device 4 leaves the subordinate of the SIP server 1.

  In FIG. 2, the packet decomposing / generating unit 103 is shown as an independent circuit part, but is not limited to this. The packet disassembly / generation unit 103 can of course be realized as a function of the control unit 110 by a program executed by the control unit 110.

[Configuration Example of Dock Device 4]
Next, the configuration of the dock device 4 used in the telephone system of this embodiment will be described. FIG. 4 is a block diagram for explaining a configuration example of the dock device 4 of the telephone system of this embodiment.

  As shown in FIG. 4, the dock device 4 of this embodiment includes a LAN connection terminal 401, a LAN I / F 402, and a packet processing unit 403 as a part for realizing a connection function to the LAN. . In addition, the dock device 4 includes a call voice input / output interface (hereinafter abbreviated as a call voice input / output I / F) 404, a handset connection terminal 405, a handset 406, a ringer 407, and an operation input as a part for realizing a user interface. A unit 408 and an operation input I / F 409 are provided.

  Here, the handset 406 is provided with a receiver (speaker) and a transmitter (microphone), and is used during a call. The operation input unit 408 includes various function keys including numeric keys (so-called numeric keys), several symbol keys, off-hook keys, on-hook keys, and the like, and receives operation inputs from the user.

  Further, the dock device 4 is provided with a terminal mounting portion 410 on the front surface of the dock device 4 as a part for realizing connection with the mobile phone terminal 5 which is an external device. As shown in FIG. 1, the terminal mounting portion 410 has a concave portion (groove portion) that is substantially the same as the vertical and horizontal widths of the mobile phone terminal 5 so as not to be displaced when the mobile phone terminal 5 is placed. It is provided as. That is, as shown in FIG. 1, the terminal placement unit 410 is provided with side walls on the left side, the right side, and the lower side. In addition, the upper side of the concave portion is in an open state without providing a side wall in order to facilitate attachment / detachment of the mobile phone terminal 5.

  The terminal placement unit 410 is provided with an external terminal 411 at a portion corresponding to the external terminal of the mobile phone terminal 5 when a later-described mobile phone terminal 5 is placed. The external terminal 411 is connected to an external interface (hereinafter abbreviated as an external I / F) 412 and a charging current supply unit 413, and the charging current supply unit 413 is connected to an AC outlet 414. Yes.

  In addition, the dock device 4 includes a connection terminal registration memory 421, a terminal registration leave processing unit 422, a message processing unit 423, and a display control message providing unit 424 as parts for causing the own device to function as a telephone terminal under the control of the SIP server 1. In addition, a control unit 430 is provided.

  The control unit 430 controls each unit of the dock device 4 of this embodiment, and is a microcomputer configured by connecting a CPU 431, a ROM 432, a RAM 433, and an EEPROM 434 through a CPU bus 435. The CPU 431 reads out and executes a program stored in the ROM 432, forms a control signal to be supplied to each part and supplies it to each part, or processes data supplied from each part. is there. As described above, the ROM 432 stores and holds various programs executed by the CPU 431 and various data necessary for processing. The RAM 433 is mainly used as a work area, such as temporarily storing intermediate results of processing.

  The EEPROM 434 can also store and hold data that should be retained even when the power is turned off, such as various setting parameters and new programs provided for function enhancement. . Note that the EEPROM 434 also stores and holds extension registration data including extension numbers, IP addresses, port numbers, and the like set in advance for the dock device 4 as described with reference to FIG.

  The LAN connection terminal 401 constitutes a connection end to the LAN. The LAN I / F 402 receives a packet supplied through the LAN, converts it into a packet in a format that can be processed by itself, and supplies the packet to the control unit 430. Further, the LAN I / F 402 converts a packet to be transmitted supplied through the control unit 430 into a packet in a transmission format, and transmits this to the LAN.

  The packet processing unit 403 receives supply of the packet received through the LAN connection terminal 401 and the LAN I / F 402, disassembles the packet, and extracts control data and audio data included in the packet. The control data extracted here is supplied to the control unit 430 and used for controlling the own device. Also, the extracted voice data is supplied to a call voice input / output I / F 404 described later through the control unit 430. Further, the packet processing unit 403 packetizes data to be transmitted from the own device supplied through the control unit 430 and transmits the packetized data to the LAN through the LAN I / F 402 and the LAN connection terminal 401. Here, the data transmitted from the own device is audio data corresponding to the user's voice collected by the handset 406 described later.

  The communication voice input / output I / F 404 forms an analog voice signal to be supplied to the handset (speaker) of the handset 406 of the own device from the voice data from the packet processing unit 403, and sends this analog voice signal to the handset 406 handset through the handset connection terminal 405. Supply. Thereby, the voice of the other party transmitted from the other party is emitted from the handset of the handset 406. On the other hand, the voice collected by the transmitter (microphone) of the handset 406 is converted into an electrical signal here and supplied to the communication voice input / output I / F 404 through the handset connection terminal 405. The communication voice input / output I / F 404 performs processing such as converting voice data from the handset 406 into a digital signal, and supplies this to the packet processing unit 403 through the control unit 430 as described above.

  As described above, the functions of the LAN connection terminal 401, the LAN I / F 402, the packet processing unit 403, the call voice input / output I / F 404, the handset connection terminal 405, the handset 406, and the control unit 430 can be used to communicate with a target partner. Call voice can be sent and received to make a call.

  The external terminal 411 constitutes a connection end portion with the mobile phone terminal 5 that is an external device, and has a data terminal and a charging terminal. Therefore, as described above and as shown in FIG. 4, the external terminal 411 is connected to the external I / F 412 and the charging current supply unit 413. When an external device such as the mobile phone terminal 5 is connected to the external terminal 411, the external I / F 412 exchanges signals at the time of connection with the mobile phone terminal 5, thereby connecting the mobile phone terminal 5. This is detected and notified to the control unit 430. Thereby, the control unit 430 can recognize that the mobile phone terminal 5 is connected to the own device through the external terminal 411.

  The external I / F 412 receives data from the mobile phone terminal 5 supplied through the external terminal 411, converts the data into data in a format that can be processed by the own device, and supplies the data to the control unit 430. Also, the external I / F 412 converts data from the control unit 430 supplied to the mobile phone terminal 5 connected to the external terminal 411 into data of a predetermined format for output, and outputs this through the external terminal 411. .

  The charging current supply unit 413 generates a DC charging current from the commercial AC voltage sent from the AC outlet 414. The charging current supply unit 413 is controlled to the driving state by the control of the control unit 430 based on the detection notification that the mobile phone terminal 5 is connected to the dock device 4 from the external I / F 412, and the charging current is The mobile phone terminal 5 is supplied through an external terminal.

  In this embodiment, the portion including the external terminal 411, the external I / F 412 and the charging current supply unit 413 of the dock device 4 conforms to the USB (Universal Serial Bus) standard. That is, in this embodiment, the external terminal 411 of the dock device 4 is a USB terminal.

  The connection terminal registration memory 421 stores and holds terminal identification information of the mobile phone terminal 5 that can be connected to the dock device 4 through the external terminal 411 and information indicating the connection state. By checking based on the registration information in the connection terminal registration memory 421, only a predetermined mobile phone terminal can be connected to the dock device 4, and an outsider's mobile phone terminal is connected to the dock device 4. Thus, it is possible to prevent a call from being made through the telephone system.

  FIG. 5 is a diagram for explaining an example of information managed in the connected terminal registration memory 421. As shown in FIG. 5, in the connection terminal registration memory 421, SIM. No, registered terminal name, telephone number, and carrier (contract telephone company) are registered in advance. In FIG. 5, SIM. No is shown as a two-digit sequence number from “01” to “10”, but the actual SIM. For No, information recorded on the SIM card of each mobile phone terminal 5 is used, and each mobile phone terminal 5 can be uniquely identified.

  The registered terminal name is information given to identify each mobile phone terminal 5 for convenience in the telephone system. The registered terminal name may be the user name of the mobile phone terminal 5 or the like. Further, the telephone number is a telephone number assigned to each mobile phone terminal 5, and the carrier is the name of a mobile phone company that provides a service for connecting the mobile phone terminal to a mobile phone network to enable communication. is there.

  For example, the information of the mobile phone terminal 5 of the user who can use the telephone system is registered by the administrator of the telephone system according to this embodiment. In the case of the example shown in FIG. 5, a case is shown in which ten different mobile phone terminals 5 from terminal A to terminal J are registered in the dock device 4 as being connectable. . In the case of the example illustrated in FIG. 5, the terminal A among the terminals A to J is currently connected to the dock device 4.

  Then, the terminal registration leaving processing unit 422 performs processing for registering the telephone terminal composed of the dock device 4 and the mobile phone terminal 5 as a subordinate telephone terminal with respect to the SIP server 1. In addition, the terminal registration / removal processing unit 422 performs processing for causing the telephone terminal including the dock device 4 and the mobile phone terminal 5 registered as telephone terminals under the control of the SIP server 1 to leave the subordinate of the SIP server 1.

  For example, the control unit 430 detects that the mobile phone terminal 5 is connected to the external terminal 411 through the external I / F 412, and the same terminal identification information as the terminal identification information provided from the mobile phone terminal 5 is registered in the connection terminal. Assume that it is determined that it is registered in the memory 421. In this case, the control unit 430 controls the terminal registration / removal processing unit 422 so that the terminal constituted by the dock device 4 and the mobile phone terminal 5 connected thereto is a telephone terminal under the SIP server 1. Registration processing is performed to ensure that

  Specifically, the terminal registration removal processing unit 422 forms a registration request to the SIP server 1 according to the control of the control unit 430, and sends the registration request to the SIP server 1 through the control unit 430, the LAN I / F 402, and the LAN connection terminal 401. It is transmitted to the server 1. Here, the registration request includes information indicating that the request is a registration request and extension registration data (extension number, IP address, port number) as described with reference to FIG. In the SIP server 1, based on the registration request from the dock device 4, the extension number, IP address, and port number for the requesting telephone terminal are registered in the address management DB 106. As a result, a telephone terminal constituted by the dock device 4 and the mobile phone terminal 5 connected thereto becomes a telephone terminal under the SIP server 1.

  In addition, the terminal registration leaving processing unit 422 performs a leaving process when the control unit 430 detects that the mobile phone terminal 5 connected to the external terminal 411 has left the external terminal 441 through the external I / F 412. . In this case, the terminal registration removal processing unit 422 generates a withdrawal request to the SIP server 1 according to the control of the control unit 430, and sends the request to the SIP server 1 through the control unit 430, the LAN I / F 402, and the LAN connection terminal 401. To send to. Here, the leaving request includes information indicating that the request is a leaving request and, for example, extension registration data. The SIP server 1 deletes the extension registration data for the requesting telephone terminal from the address management DB 106 based on the withdrawal request from the dock device 4. As a result, the telephone terminal composed of the dock device 4 and the mobile telephone terminal 5 is removed from the subordinates of the SIP server 1.

  The message processing unit 423 mainly processes messages (requests, instructions, notifications, responses, etc.) transmitted to and received from the SIP server 1. Specifically, the message processing unit 423 forms a message to be supplied to the SIP server 1, sends it to the LAN through the control unit 430, the LAN I / F 402, and the LAN connection terminal 401, and supplies it to the SIP server 1. Further, the message processing unit 423 receives a message from the SIP server 1 connected to the LAN, and makes it available to the control unit 430.

  The display control message providing unit 424 forms a display control message to be supplied to the mobile phone terminal 5 connected through the external terminal 411 and the external I / F 412 according to the control of the control unit 430, and generates the display control message. Provided to the telephone terminal 5. The display control message formed here is a display of various display information related to the call such as the telephone number of the caller at the time of the incoming call to the own machine, the telephone number of the other party input through the operation input unit 408, and the call time. Or for erasing.

  Thus, when the mobile phone terminal 5 is connected, the dock device 4 of this embodiment becomes a phone terminal under the SIP server 1 together with the mobile phone terminal 5, and the IP network 6 through the SIP server 1. And a telephone terminal connected to the telephone network 7 can be made. The mobile phone terminal 5 connected to the dock device 4 can be used as a display device of a phone terminal configured with the dock device 4. Accordingly, the mobile communication terminal 5 can be used not only as a mobile phone terminal but also connected to a telephone system formed in a company or the like. In addition, when the mobile phone terminal 5 is connected to the dock device 4, the mobile phone terminal 5 can be charged through the dock device 4, so that no special charging time is provided. You can prepare for going out.

  In FIG. 4, terminal registration / leave processing unit 422, message processing unit 423, and display control message providing unit 424 indicated by double lines are shown as independent circuit parts, but in control unit 430. Of course, it can be realized as a function of the control unit 430 by a program to be executed.

[Configuration example of mobile phone terminal 5]
Next, the configuration of the mobile phone terminal 5 used in the telephone system of this embodiment will be described. FIG. 6 is a block diagram for explaining a configuration example of the mobile phone terminal 5 of the telephone system of this embodiment.

  As shown in FIG. 6, the cellular phone terminal 5 of this embodiment includes a transmission / reception antenna 501, a telephone communication unit 502, a transmission / reception signal processing unit 503, and a call voice processing unit 504 as a wireless communication processing system. A telephone receiver (speaker) 506 is connected to the call voice processing unit 504 through a receiver amplifier 505, and a transmitter (microphone) 507 is connected through a transmitter amplifier 508. Further, the mobile phone terminal 5 includes a message processing unit 511 and a terminal information providing unit 512 as parts for functioning as a telephone terminal in cooperation with the dock device 4 described above. The mobile phone terminal 5 includes a phone book DB 514 in which a large number of phone book data is recorded.

  Further, the mobile phone terminal 5 includes an operation input unit 521, an operation input I / F 522, a display controller 523, a display 524, and a ringer 525 as parts constituting a user interface. In this example, the display 524 is an LCD (Liquid Crystal Display). In addition, a so-called thin display element such as an organic EL display (organic electroluminescence display) can also be used. Although not shown, the mobile phone terminal 5 is also provided with a vibrator for notifying incoming calls. Furthermore, the mobile phone terminal 5 includes an external terminal 531, an external I / F 532, a charging circuit 533, and a battery 534, and a control unit 540 that controls each unit of the mobile phone terminal 5.

  The control unit 540 is a microcomputer formed by connecting a CPU 541, ROM 542, RAM 543, and EEPROM 544 through a CPU bus 545. The CPU 541 reads out and executes a program stored in the ROM 542, forms a control signal to be supplied to each unit, supplies the signal to each unit, or receives data transmitted from each unit, and responds accordingly. Execute the process. The ROM 542 stores programs executed in the CPU 541 and various data necessary for processing in advance.

  The RAM 543 is mainly used as a work area, such as temporarily storing intermediate results of processing. The EEPROM 544 is a so-called nonvolatile memory, and stores and holds data and the like that should be retained even when the power of the cellular phone terminal 5 is turned off. In the EEPROM 544, for example, various setting parameters, application programs, additional programs for improving functions, and the like are stored and held. The EEPROM 544 also stores information such as a telephone number and a carrier name (mobile phone company name) as the terminal identification information described above. Note that SIM. Although not shown in FIG. 5, No is stored and held in a SIM card installed in the SIM card slot of the cellular phone terminal 5 so that it can be referred to through the control unit 540.

  The transmission / reception antenna 501 is an end for transmitting / receiving data to / from the mobile phone network. The telephone communication unit 502 is for communicating with the other party through a base station of a mobile phone network. The transmission / reception signal processing unit 503 analyzes the communication information received through the telephone communication unit 502 under the control of the control unit 540, decodes the call control message and the call signal, and supplies them to the control unit 540. A transmission signal to be transmitted through 502 is generated.

  The call voice processing unit 504 converts the received voice information from the transmission / reception signal processing unit 503 from a digital signal to an analog signal under the control of the control unit 540 and supplies the converted signal to the reception amplifier 505. The received voice signal supplied to the receiver amplifier 505 is amplified here, and then supplied to the receiver 506 for sound reproduction. The call voice processing unit 504 also converts a transmission voice signal collected by the transmitter 507 and amplified by the transmission amplifier 508 from an analog signal to a digital signal, and under the control of the control unit 540, The data is supplied to the transmission / reception signal processing unit 503. Then, as described above, the transmission / reception signal processing unit 503 generates a transmission signal to be transmitted from the digitized transmission voice signal from the call voice processing unit 504, and supplies the transmission signal to the telephone communication unit 502 for transmission. Like that.

  The operation input unit 521 is provided with a numeric key, an off-hook key, an on-hook key, and other various function keys, and is a part that receives an operation input from the user. The operation input from the user received through the operation input unit 521 is converted into an electric signal in the operation input I / F 522 and notified to the control unit 540. Thereby, the control unit 540 controls each unit in accordance with a signal from the operation input I / F 522, and can perform processing in accordance with a user instruction.

  The display controller 523 forms a display signal for displaying information on the display 524 under the control of the control unit 540, and supplies the display signal to the display 524. As a result, various information is displayed on the display 524. For example, when a call is received, the telephone number or name of the caller is displayed, and when calling, the phone book data registered in the phone book DB 514 is displayed.

  In addition, during standby, a predetermined standby screen can be displayed on the display 524, and various error messages, guidance messages, and the like can be displayed. Note that the phone book DB 514 can store and hold a large amount of information such as the telephone number, name, address, and e-mail address of the other party who frequently calls or frequently calls.

  The external terminal 531 constitutes a connection end with the dock device 4 that is an external device, and has a data terminal and a charging terminal. Therefore, as shown in FIG. 6, an external I / F 532 and a charging circuit 533 are connected to the external terminal 531.

  The external I / F 532 is for transmitting and receiving data to and from the dock device 4 connected through the external terminal 531. When the dock device 4 is connected to the external terminal 531, the external I / F 532 detects the connection to the dock device 4 by exchanging signals with the dock device 4 at the time of connection, The control unit 540 is notified. Thereby, the control unit 540 can recognize that the own device is connected to the dock device 4 through the external terminal 531.

  The external I / F 532 receives data from the dock device 4 supplied through the external terminal 531, converts the data into data in a format that can be processed by the own device, and supplies the data to the control unit 540. Further, the external I / F 532 converts data from the control unit 540 supplied to the dock device 4 connected to the external terminal 531 into data of a predetermined format for output, and outputs this through the external terminal 531.

  Charging circuit 533 generates a current to be supplied to battery 534 from the charging current sent from dock device 4 through the charging terminal of external terminal 531. Then, the charging circuit 533 is controlled to the driving state by the control of the control unit 540 based on the detection notification of connection to the dock device 4 from the external I / F 532, and supplies the current generated for charging to the battery 534. To do. Thereby, the battery 534 of the mobile phone terminal 5 is charged.

  In this embodiment, the part including the external terminal 531, the external I / F 532, and the charging circuit 533 of the mobile phone terminal 5 conforms to the USB (Universal Serial Bus) standard. That is, in this embodiment, the external terminal 531 of the mobile phone terminal 5 is a USB terminal. When the cellular phone terminal 5 of this embodiment is connected to the dock device 4 through the external terminal 531, the message processing unit 511 and the terminal information providing unit 512 function and cooperate with the dock device 4. The telephone terminal can be a subordinate of the SIP server 1.

  Here, when the message processing unit 511 is connected to the dock device 4 through the external terminal 531 under the control of the control unit 540, the message (request, instruction, notification) transmitted to and received from the dock device 4 is transmitted. , Response, etc.). Specifically, the message processing unit 511 receives message information from the dock device 4 connected through the external terminal 531 and supplies the message information to the control unit 540 so that the message information can be used by the control unit 540. As a result, the control unit 540 can perform processing corresponding to the message from the dock device 4.

  Therefore, when the display control message from the dock device 4 is received by the function of the message processing unit 511, various information can be displayed on the display 524 accordingly. That is, the mobile phone terminal 5 can be used as a display device of a phone terminal formed with the dock device 4.

  Further, the message processing unit 511 forms a message to be provided from its own device to the dock device 4, and supplies the message to the dock device 4 through the control unit 540, the external I / F 532, and the external terminal 531. Here, the message provided from the own device to the dock device 4 is, for example, a message that needs to be provided corresponding to the message provided from the dock device 4. As described above, the function of the message processing unit 511 enables the mobile phone terminal 5 and the dock device 4 to cooperate.

  Further, the terminal information providing unit 512 is connected to the dock device 4 through the external terminal 531, and when a request for providing terminal identification information is received from the dock device 4, the terminal information providing unit 512 is controlled by the control unit 540 and controlled by the terminal of its own device. The identification information is acquired and provided to the dock device 4. Specifically, the terminal information providing unit 512 responds to the provision request for the terminal identification information from the SIM card or the EEPROM 544 installed in its own device, with the SIM. No, telephone number, carrier name (mobile phone company name), etc. are acquired. Then, the terminal information providing unit 512 forms a response including the acquired terminal identification information, and provides this to the dock device 4 through the control unit 540, the external I / F 532, and the external terminal 531.

  As described above, the dock device 4 permits only the connection of the mobile phone terminal 5 having the terminal identification information registered in advance in the connection terminal registration memory 421. For this reason, the function of the terminal information providing unit 512 provides the terminal identification information of the own device to the dock device 4 so that authentication can be performed on the dock device 4 side.

  Then, when the connection is permitted in the dock device 4, the mobile phone terminal 5 cooperates with the dock device 4 and becomes a phone terminal under the control of the SIP server 1, but the function as the mobile phone terminal is stopped. Like that. This is because when connected to the dock device 4, it operates only as a display device of a telephone terminal configured together with the dock device 4. Therefore, when the connection to the dock device 4 is permitted, the control unit 540 of the mobile phone terminal 5 functions as a wireless communication processing system including the telephone communication unit 502, the transmission / reception signal processing unit 503, and the call voice processing unit 504. And the message control unit 511 is caused to function.

  As a result, the function as the mobile phone terminal is stopped, and the mobile phone terminal can function as a display device for the telephone terminal under the SIP server 1. Here, the function as a mobile phone terminal means a function of performing communication through a mobile phone network. In other words, the function as a mobile phone terminal means a function that can be realized independently by the mobile phone terminal 5 as a mobile terminal.

  When the control unit 540 of the mobile phone terminal 5 is disconnected from the dock device 4 connected through the external terminal 531, the wireless communication processing system described above functions and the function of the message processing unit 511 is stopped. It is made to function as a mobile phone terminal by itself. Thus, the control unit 540 of the mobile phone terminal 5 also realizes functions as a function stop control unit and a function operation control unit.

  In FIG. 6, the message processing unit 511 and the terminal information providing unit 512 indicated by double lines are shown as independent circuit parts, but the present invention is not limited to this. Each of the message processing unit 511 and the terminal information providing unit 512 can be realized as a function of the control unit 540 by a program executed in the control unit 540.

[Telephone system processing]
Next, processing performed in the telephone system of this embodiment will be described with reference to FIGS. In the following, (1) when a call is made in response to an incoming call, (2) when a call is made after a call is made through a telephone terminal composed of a dock device 4 and a mobile phone terminal 5, and (3) a dock device A process in each case of disconnecting (separating) the mobile phone terminal 5 connected to the terminal 4 will be described.

[(1) When making a call in response to an incoming call]
First, in the telephone system according to the present embodiment, processing when a call is made in response to an incoming call using a telephone terminal composed of the dock device 4 and the mobile phone terminal 5 will be described. 7 and 8 are sequence diagrams for explaining processing in the case where a telephone call is made in response to an incoming call through the telephone terminal including the dock device 4 and the mobile telephone terminal 5 in the telephone system of this embodiment. is there.

  As shown in the upper right side of FIG. 7, for example, the user of the mobile phone terminal 5 returns to the office from the outside, and the external terminal 531 of the mobile phone terminal 5 and the external terminal of the dock device 4 installed in the company Assume that 411 is connected as shown in FIG. 1 (step S1). The connection between the external terminals of both devices can be performed by placing the mobile phone terminal 5 on the terminal placement unit 410 of the dock device 4 as shown in FIG.

  In this case, the control unit 430 of the dock device 4 may recognize that an external device is connected to the own device through communication processing when connecting to the mobile phone terminal 5 through the external terminal 411 and the external I / F 412. it can. Therefore, when the control unit 430 of the dock device 4 detects the connection of the external device, the control unit 430 controls the message processing unit 423 to form a terminal identification information provision request (terminal information request). The information is provided to the mobile phone terminal 5 through the I / F 412 and the external terminal 411 (step S2).

  On the other hand, the control unit 540 of the mobile phone terminal 5 may also recognize that its own device is connected to the external device through communication processing when connected to the dock device 4 through the external terminal 531 and the external I / F 532. it can. In this case, the control unit 540 of the mobile phone terminal 5 causes the message processing unit 511 to function so that a message from an external device can be processed. When the control unit 540 of the mobile phone terminal 5 receives the terminal information request from the dock device 4, the control unit 540 controls the message processing unit 511 to form a terminal information response including the terminal identification information. The data is provided to the dock device 4 through the external I / F 532 and the external terminal 531 (step S3).

  As described above, between the dock device 4 and the mobile phone terminal 5, the control unit 430 on the dock device 4 side, the external I / F 412, the external terminal 411, the control unit 540 on the mobile phone terminal 5 side, and the external I / F 532. Information (signal) is transmitted and received through the external terminal 531.

  When receiving the terminal information response including the terminal identification information from the mobile phone terminal 5, the control unit 430 of the dock device 4 determines whether or not the mobile phone terminal 5 is connectable. Forms a display application activation request and supplies it to the mobile phone terminal 5 (step S4). In step S4, the control unit 430 refers to the registration information in the connection terminal registration memory 421 based on the terminal identification information from the mobile phone terminal 5, and the mobile phone terminal 5 connected to the own device can be connected. It is determined whether it is a thing. Here, it is assumed that the registration information (registration terminal) in the connection terminal registration memory 421 matches the terminal information (terminal identification information) from the mobile phone terminal 5. In this case, the control unit 430 of the dock device 4 controls the message processing unit 423 to form a display application program activation request (display application activation request), and provides this to the mobile phone terminal 5.

  In the mobile phone terminal 5 that has received the display application activation request, the control unit 540 activates the display application program (step S5). Thereby, the control unit 540 stops the function of the wireless communication processing system so that it does not function as a mobile phone terminal, and functions only the necessary part such as the message processing unit 511.

  In the dock device 4, the terminal registration leave processing unit 422 according to the control of the control unit 430 is displayed in the connection status column of the corresponding terminal identification information in the connection terminal registration table formed in the connection terminal registration memory 421. Information indicating that the connection is in progress is updated (step S6).

  In step S4, it is assumed that the terminal registration deletion processing unit 422 of the dock device 4 determines that the mobile phone terminal 5 connected through the external terminal 411 is not connectable to the own device. In this case, in the dock device 4, the control unit 430 controls the message processing unit 423 to form a connection impossible message, and provides this to the mobile phone terminal 5. In this case, in the mobile phone terminal 5, the mobile phone terminal 5 is connected to the dock device 4 by displaying a display message indicating that the connection to the dock device 4 is not possible in response to the connection impossible message. The user is notified that it is not possible.

  Then, after the processing of step S6, the control unit 430 of the dock device 4 controls the message processing unit 423 to form a registration request addressed to the SIP server 1 including the extension registration data registered in the EEPROM 434. It transmits to the SIP server 1 (step S7). The registration request is transmitted to the LAN through the control unit 430, the LAN I / F 402, and the LAN connection terminal 401, and is transmitted to the SIP server 1 through the LAN. Thereafter, when the extension registration data is registered in the address management DB 106 in the SIP server 1, a registration response addressed to the dock device 4 is formed and transmitted through the LAN.

  When the dock device 4 receives a registration response from the SIP server 1 through the LAN connection terminal and the LAN I / F 402, the control unit 430 controls the message processing unit 423 to form an extension telephone status display request, which is transmitted to the mobile phone terminal. 5 (step S8). The extension telephone status display request is a request to display information indicating that the dock device 4 and the mobile phone terminal 5 connected through the external terminal have become telephone terminals under the SIP server 1. .

  In response to this, the control unit 540 of the mobile phone terminal 5 controls the display controller 523 to confirm that it has become a telephone terminal under the SIP server 1 at a predetermined position on the display 524, that is, an extension telephone. Display information to be displayed is displayed (step S9). In this step S9, for example, instead of a display indicating the reception status of the radio wave from the base station or a battery remaining amount display, a display indicating that the extension telephone has become an extension telephone such as "extension telephone" or "extension 2010" Is displayed at a predetermined position on the display screen of the display 524. As described above, the terminal composed of the dock device 4 and the mobile phone terminal 5 connected to the dock device 4 is made to be a telephone terminal under the SIP server 1 by the processing in steps S1 to S9 shown in FIG. The

  Thereafter, the process proceeds to the process shown in FIG. 8, and it is assumed that there is an incoming call to the telephone system, and the SIP server 1 sends an incoming call notification (incoming message) to the telephone terminals under the LAN. The control unit 430 of the dock device 4 that has received the incoming call notification from the SIP server 1 updates the internal state of the telephone so that the incoming call is changed from the so-called standby state (step S11). Here, the standby state means a state in which an incoming call can be accepted or a call operation can be accepted, and a state in which an incoming call is received means a state in which an incoming call is received by the own device. Thereafter, the control unit 430 of the dock device 4 controls the ringer 407 to emit a ringtone. Further, the control unit 430 controls the message processing unit 423 to form an extension telephone status display request for notifying that an incoming call has occurred, including the caller's telephone number, and connecting this to the own machine. Is provided to the mobile phone terminal 5 being operated (step S12).

  In the mobile phone terminal 5 that has received the extension telephone status display request from the dock device 4, the control unit 540 controls each unit in accordance with the message processed by the message processing unit 511, and informs the user that there is an incoming call. A notification process (extension telephone status display update) is performed (step S13). In step S <b> 13, the control unit 540 of the mobile phone terminal 5 performs a process of displaying the caller telephone number included in the extension telephone status display request on the display 524 through the display controller 523.

  As described above, after notifying the user that there is an incoming call by emitting the ringtone by the ringer 407 of the dock device 4 and updating the extension telephone state display in step S13 in the mobile phone terminal 5, the user 4 is a response operation (off-hook operation). In this case, when the control unit 430 of the dock device 4 receives the response operation notification from the user, the control unit 430 changes the internal state of the telephone so as to change from a state in which there is an incoming call to a state where it responds to the incoming call. Update (step S14).

  Here, the state of responding to an incoming call means a state in which an incoming call response is returned to the caller and processing for connecting a communication path is started. Thereafter, the control unit 430 of the dock device 4 controls the message processing unit 423 to notify that the telephone number of the caller is included and the communication path is connected to the caller to make a call. An extension telephone status display request is generated to be sent to the mobile phone terminal 5 connected to the mobile phone terminal (step S15).

  In the cellular phone terminal 5 that has received the extension telephone status display request from the dock device 4, the control unit 540 controls the display controller 523, performs a response operation to the incoming call, and notifies the user that the call status has been changed. (Extension telephone status display update) is performed (step S16). In step S16, the control unit 540 of the mobile phone terminal 5 displays the telephone number of the caller included in the extension telephone status display request on the display 524 through the display controller 523 and counts and displays the call time. Start.

  Then, the control unit 430 of the dock device 4 controls the message processing unit 423 to form an incoming response notification addressed to the IP server 1 and sends it to the LAN through the control unit 430, the LAN I / F 402, and the LAN connection terminal 401. (Step S17). As a result, an incoming call response notification is transmitted to the SIP server 1. Then, the SIP server 1 that has received the incoming call response notification connects a communication path between the terminal device of the transmission source and the subordinate dock device 4 that has responded. Thereby, a communication path is connected between the terminal device of the transmission source and the dock device 4 so that the user of the dock device 4 can make a call (telephone communication) through the handset 406 connected to the dock device 4. Is done. In this case, the call voice input / output I / F 404 functions in the dock device 4.

  As described above, when the mobile phone terminal 5 is connected to the dock device 4, a terminal composed of the dock device 4 and the mobile phone terminal 5 becomes a phone terminal under the control of the SIP server 1. Then, a telephone call made to the telephone system including the SIP server 1 can be answered using a telephone terminal composed of the dock device 4 and the mobile telephone terminal 5 to make a call.

  8, the SIP server 1 and the dock device 4 are wired with a LAN cable, and the dock device 4 and the mobile phone terminal 5 are also directly wired with each other. Therefore, since there is no wirelessly connected portion, the terminal composed of the dock device 4 and the mobile phone terminal 5 is not affected by obstacles or noise, and the terminal is reliable without interfering with control data transmission / reception. A highly functional telephone terminal can be configured. Further, when the caller completes the call or the user of the mobile phone terminal 5 goes on-hook, the connected communication path is released, and the phone terminal composed of the dock device 4 and the mobile phone terminal 5 is In a so-called standby state.

[(2) When making a call by making a call]
Next, processing of the telephone system according to this embodiment in the case where the telephone terminal composed of the dock device 4 and the mobile phone terminal 5 is used to make a call by calling (calling) a target destination. explain. FIGS. 9 and 10 are sequence diagrams for explaining processing in the case where a call is made by making a call through a telephone terminal composed of the dock device 4 and the mobile phone terminal 5 in the telephone system of this embodiment.

  Here, the processing from step S1 to step S9 described with reference to FIG. 7 has already been performed, and the telephone terminal composed of the dock device 4 and the mobile phone terminal 5 is a telephone terminal under the SIP server 1. And For this reason, as shown in the upper right end of FIG. 9, the mobile phone terminal 5 is displayed at a predetermined position on the display 524 indicating that it has become a telephone terminal under the SIP server 1, that is, an extension telephone. It is assumed that information is displayed (step S9).

  Assume that the user performs a predetermined off-hook operation such as picking up the handset 406 of the dock device 4 from the dock device 4 or pressing the off-hook key of the operation input unit 408 of the dock device 4. In this case, the control unit 430 of the dock device 4 changes the state of the own device from the so-called standby state to the off-hook state from the user (step S21). Then, in the dock device 4, the control unit 430 controls the message processing unit 423 to form an extension telephone state display instruction and provides it to the mobile phone terminal 5 (step S22). The extension telephone state display instruction is an instruction to display information indicating that the telephone terminal including the dock device 4 and the mobile telephone terminal 5 is in the off-hook state.

  Then, it is assumed that the mobile phone terminal 5 has received the extension telephone state display instruction from the dock device 4 that is to be transmitted in step S22. In this case, in the cellular phone terminal 5, the message processing unit 511 and the control unit 540 function and control the display controller 523 to shift the display on the display 524 to the off-hook display (extension telephone state display update). Is performed (step S23). In this step S23, for example, the display of the current date and time displayed on the display 524 is erased, and the telephone terminal composed of the dock device 4 and the mobile phone terminal 5 is in an off-hook state. As the display to be displayed, for example, the characters “off-hook” and the design of the upper body from which the handset (handset) has been removed from the telephone are displayed.

  Thereafter, it is assumed that the user inputs a target telephone number to the operation input unit 408 of the dock device 4. In this case, the control unit 430 of the dock device 4 changes the state of the own device from the off-hook state to the outgoing state (step S24). Then, in the dock device 4, the control unit 430 controls the message processing unit 423 to form an extension telephone state display instruction, and provides this to the mobile phone terminal 5 (step S25). The extension telephone state display instruction is for instructing display of input information (the telephone number of the other party) input through the operation input unit 521.

  In response to this, the control unit 540 of the mobile phone terminal 5 controls the display controller 523 to perform a process of displaying input information (the telephone number of the other party) at a predetermined position on the display 524 (extension telephone state display update). This is performed (step S26). As a result, the user of the mobile phone terminal 5 confirms the input information (the phone number of the other party) displayed on the display 524 of the mobile phone terminal 5, and the phone number entered by the user through the operation input unit 408 of the dock device 4. It is possible to determine whether or not is correct.

  When the displayed telephone number of the other party is not correct, the telephone number of the target party can be re-entered, for example. Then, in the dock device 4, the control unit 430 controls the message processing unit 423 to form a call request addressed to the SIP server 1 including the telephone number of the other party received through the operation input unit 408, and sends this request to the SIP through the LAN. It transmits to the server 1 (step S27). That is, the outgoing call request formed by the dock device 4 is sent to the LAN through the control unit 430, the LAN I / F 402, and the LAN connection terminal 401 and provided to the SIP server 1. Then, the SIP server 1 specifies the other party by the telephone number of the other party included in the outgoing call request, and makes a call to the other party.

  Thereafter, the telephone system proceeds to the process shown in FIG. Then, it is assumed that the calling process is started in the counterpart terminal device with the transmission from the SIP server 1. In this case, a message indicating that the call is in progress is returned from the terminal device of the other party. The message indicating that the call is being performed is information indicating that the transmission has been properly successful. For this reason, in the dock apparatus 4, it changes from the state which performs transmission to the state which waits for the response from the other party (step S31). In step S31, the dock device 4 also performs a process of emitting an RBT (Ring Back Tone) through the receiver of the handset 406. Then, in the dock device 4, the control unit 430 controls the message processing unit 423 to form an extension telephone state display instruction, and provides this to the mobile phone terminal 5 (step S32). The extension telephone state display instruction is an instruction to notify that the intended destination is ringing.

  In response to this, the control unit 540 of the mobile phone terminal 5 performs a process of displaying the telephone number of the called party (the other party making the call) on the display 524 (extension telephone state display update) (step S33). That is, in step S33, the control unit 540 controls the display controller 523 to display the telephone number of the called party (the other party making the call) at a predetermined position on the display 524. As a result, the user can recognize that the terminal device of the intended destination is being called by the sound emission of the RBT and the display information on the display 524.

  Thereafter, it is assumed that a response operation is performed on the target terminal device of the destination and an incoming response is transmitted from the destination to the SIP server 1. The incoming call response is provided to the originating dock device 4 through the SIP server 1. In this case, in the dock device 4, the incoming call response is received from the state of waiting for a response from the other party, and the state is changed to a state of making a call by connecting the communication path (step S 34). In step S34, the sound emission of the RBT in the dock device 4 is stopped. Then, in the dock device 4, the control unit 430 controls the message processing unit 423 to form an extension telephone state display instruction and provides it to the mobile phone terminal 5 (step S35). The extension telephone state display instruction is for instructing a transition to a state in which a telephone call is made because the intended destination has responded.

  In response to this, in the cellular phone terminal 5, the control unit 540 controls each unit in accordance with the message processed by the message processing unit 511, and performs processing to display that the state is set to start a call (extension The telephone status display is updated (step S36). Specifically, the control unit 540 controls the display controller 523 to display the telephone number of the incoming call destination (the other party making the call) on the display 524 and to start displaying the call time.

  Then, using the call voice input / output I / F of the dock device 4 and the handset 406, a call (telephone communication) is performed with a target partner. In this way, it is possible to make a call by making a call from a telephone terminal composed of the dock device 4 and the mobile phone terminal 5, connecting a communication path to the intended destination. In this case, the display on the display 524 of the mobile phone terminal 5 indicates that the phone terminal formed by the dock device 4 and the mobile phone terminal 5 is in a call state, and the time after the start of the call ( (Call time) can be recognized.

[(3) When disconnecting the mobile phone terminal 5 connected to the dock device 4]
Next, processing of the telephone system of this embodiment when the mobile phone terminal 5 connected to the dock device 4 is disconnected (separated) will be described. FIG. 11 shows that the mobile phone terminal 5 is disconnected from the dock device 4 in the telephone system of this embodiment when a call is made through the phone terminal composed of the dock device 4 and the mobile phone terminal 5. It is a sequence diagram for demonstrating the process in the case of having performed.

  As shown in the upper end of FIG. 11, a call path is connected to a target party through a handset 406 provided on the dock device 4 of the telephone terminal including the dock device 4 and the mobile phone terminal 5. Suppose you are in a state to make a call. In this state, it is assumed that the user of the mobile phone terminal 5 disconnects the dock device 4 and the mobile phone terminal 5 by removing the mobile phone terminal 5 from the terminal mounting portion 410 of the dock device 4. (Step S41).

  In this case, the control unit 540 of the mobile phone terminal 5 cannot transmit / receive a signal to / from the dock device 4 through the external terminal 531 and the external I / F 532, and thus detects that the own device has been disconnected from the dock device 4. be able to. As described above, when the control unit 540 detects that the own device has been disconnected from the dock device 4, the control unit 540 terminates the display application activated in step S <b> 5 in FIG. 7 and operates as a mobile phone terminal ( Step S42). Specifically, in step S42, the control unit 540 stops the function of the message processing unit 511 and restarts the operations of the telephone communication unit 502, the transmission / reception signal processing unit 503, and the call voice processing unit 504 that have stopped the function. Let As a result, the wireless communication processing system of the mobile phone terminal 5 operates to enable communication through the mobile phone network. That is, the mobile phone terminal 5 is disconnected from the dock device 4 and functions as a normal mobile phone terminal.

  On the other hand, the control unit 430 of the dock device 4 detects that the mobile phone terminal 5 has been disconnected from its own device because it cannot transmit / receive signals to / from the mobile phone terminal 5 through the external terminal 411 and the external I / F 412. be able to. As described above, when the control unit 430 detects that the mobile phone terminal 5 is disconnected from its own device, the control unit 430 updates the connection status column of the registration table registered in the connection terminal registration memory 421 (step S43). That is, in the update process in step S43, the connection status column for the mobile phone terminal 5 connected to the dock device 4 in the connection terminal registration table shown in FIG. Update to information.

  Thereafter, the control unit 430 of the dock device 4 controls the message processing unit 423 to form a call disconnect request addressed to the SIP server 1 and transmits it to the SIP server 1 through the LAN (step S44). Thereby, the call partner is notified through the SIP server 1 that the call path has been disconnected, and the call with the partner is terminated. Further, the control unit 430 of the dock device 4 stops the operation of the call voice input / output I / F 404, etc., so as to shift the own device from the call state to a so-called standby state (step S45).

  Then, the dock device 4 waits for a call disconnect response to the call disconnect request transmitted from the own device to the SIP server 1 to be transmitted from the SIP server 1. When the control unit 430 of the dock device 4 receives the call disconnection response, the control unit 430 controls the terminal registration / removal processing unit 422 to form an extension server disconnection request including the extension registration data of its own device, which is transmitted to the SIP server via the LAN. 1 (step S46). The extension registration data is information including an extension number, an IP address, and a port number assigned to the dock device 4 as shown in FIG.

  Thereafter, the dock device 4 waits for a disconnection completion notification transmitted from the SIP server 1. When the control unit 430 of the dock device 4 receives the disconnection completion notification from the SIP server 1, the control unit 430 stops the terminal registration / exit processing unit 422 and the message processing unit 423, so that the mobile phone 5 A transition is made to a connection standby state waiting for the connection (step S47). Thereby, in the SIP server 1, the corresponding extension registration data is deleted from the address management DB 106, and the dock device 4 is detached from the subordinate of the SIP server 1. Further, as described above, the dock device 4 itself enters a connection standby state of the mobile phone terminal 5 and waits for a connection of the mobile phone terminal 5.

  Here, with reference to FIG. 11, the processing when the mobile phone terminal 5 including the dock device 4 and the mobile phone terminal 5 is disconnected from the dock device 4 when the phone terminal is in a call state has been described. . However, disconnection of the mobile phone terminal 5 from the dock device 4 is often performed in a so-called standby state. Even when the mobile phone terminal 5 including the dock device 4 and the mobile phone terminal 5 is in a so-called standby state, the mobile phone terminal 5 is separated from the dock device 4 in the process shown in FIG. The processing similar to the processing described with reference to FIG. 11 is performed except that the processing of steps S44 and S45 shown in FIG.

  That is, in FIG. 11, when the mobile phone terminal 5 is disconnected from the dock device 4 in a standby state where a call indicated by diagonal lines is not performed, the mobile phone terminal 5 The process of step S42 is performed. Further, since it is not necessary for the dock device 4 to perform the processing of step S44 and step S45 relating to call disconnection, the processing of step S43, step S46, and step S47 is performed. In step S47, the state is changed from the standby state to the connection waiting state of the mobile phone terminal 5.

[Effect of the embodiment]
The mobile phone terminal 5 connected to the dock device 4 does not operate as a mobile phone terminal while being connected to the dock device 4, and is composed of the dock device 4 and the mobile phone terminal 5. It is made to function only as a display device (display interface) of a telephone terminal.

  Accordingly, when the user is in the office, the mobile phone terminal 5 is connected to the dock device 4 to avoid incoming calls to the mobile phone terminal 5, and only communication through the company telephone system is enabled. Can be used efficiently. That is, the mobile phone terminal 5 functions as a mobile phone terminal when away from home, and can be used as a display device of a telephone terminal under the SIP server 1 when it is present in the company. . In addition, since the SIP server 1 and the dock device 4 are connected by wire, and a call can be made through the handset 406 that is connected to the dock device 4 by wire, the communication quality can be maintained at a high quality. The

[Method and program of the present invention]
In the embodiment described above, the processing of the telephone system described with reference to the sequence diagrams of FIGS. 7 to 11 is realized by applying the method according to the present invention. Further, a program for executing a process to be executed by the dock device 4 described with reference to the sequence diagrams of FIGS. 7 to 11 is formed, and this is executed by the control unit 430 of the dock device 4. By mounting on 4, the dock device of the present invention can be realized. Similarly, a mobile phone is formed so that a program for executing processing to be executed by the mobile phone terminal 5 described with reference to the sequence diagrams of FIGS. 7 to 11 is formed and executed by the control unit 540 of the mobile phone terminal 5. By mounting on the terminal 5, the mobile phone terminal of the present invention can be realized.

[Correspondence between Apparatus and Circuit Unit of Embodiment and Apparatus and Means of Claim]
Further, as is clear from the above-described embodiment, the SIP server 1 realizes a function as an exchange device, the dock device 4 realizes a function as a dock device, and the mobile phone terminal 5 functions as a mobile terminal. Is realized.

  The LAN connection terminal 401 of the dock device 4 realizes a function as a first connection end, and the external terminal 411 realizes a function as a second connection end. Further, the handset 406 connected to the dock device 4 realizes a function as a receiver and a transmitter, a call voice input / output I / F 404 realizes a function as a call voice processing means, and an operation input unit 408 The function as the operation input means is realized. Further, the terminal registration / leaving processing unit 422 of the dock device 4 realizes functions as terminal registration processing means and terminal leaving processing means, and the message processing unit 423 realizes functions as message processing means and request providing means. The display control message providing unit 424 of the dock device 4 realizes a function as a display control message providing unit. In addition, the connection terminal registration memory 421 of the dock device 4 realizes a function as a storage unit, and the control unit 430 realizes a function as a determination unit.

  Further, the external terminal 531 of the mobile phone terminal 5 realizes a function as a connection end for an external device, the display 524 realizes a function as a display means, and the message processing unit 511 and the control unit 540 mainly cooperate. Thus, a function as display control means is realized. Further, the EEPROM 544 of the mobile phone terminal 5 realizes a function as a terminal information storage unit, and the control unit 540 realizes a function as a function stop control unit and a function operation control unit. Further, the terminal information providing unit 512 of the mobile phone terminal 5 realizes a function as terminal information providing means.

[Others]
In the above-described embodiment, as described with reference to FIG. 7, the mobile phone terminal 5 performs the operation of the wireless communication processing system when the display application activation request is transmitted from the dock device 4. The function as a mobile phone terminal is stopped by stopping, but the present invention is not limited to this. For example, the function of the mobile phone terminal 5 as the mobile phone terminal may be stopped when the control unit 540 of the mobile phone terminal 5 detects that it is connected to the dock device 4. In this case, if the mobile phone terminal 5 cannot be connected to the dock device 4, the step of FIG. 11 is performed when it is detected that the mobile phone terminal 5 is disconnected from the dock device 4. As described in S41, the function as a mobile phone terminal may be operated.

  In addition, when the mobile phone terminal 5 is connected to the dock device 4, the function as the mobile phone terminal is not stopped, and the dock device 4 receives a notification that there is an incoming call. The function as the mobile phone terminal may be stopped and functioned as the display device of the dock device 4. In this case, the function of the mobile phone terminal 5 as the mobile phone terminal may be restored when the call is completed and the communication path is released.

  In the above-described embodiment, the case where the present invention is applied to the IP telephone system has been described as an example. However, the present invention is not limited to this. The present invention can also be applied to a button telephone system configured using a main device instead of the SIP server 1.

  In the above-described embodiment, the mobile phone terminal 5 and the dock device 4 are connected via the USB standard interface, but the present invention is not limited to this. It is possible to connect by various digital interfaces. When the dock device 4 and the mobile phone terminal 5 are connected, they are connected in close proximity. For example, a short-range wireless communication interface such as the Bluetooth standard or an IrDA (Infrared Data Association) It is also possible to connect via an optical wireless data communication interface using standard infrared rays. That is, the cellular phone terminal 5 and the dock device 4 can be connected by various digital interfaces regardless of wired or wireless.

  Moreover, as the mobile phone terminal 5, in addition to a conventional mobile phone terminal, a high-function mobile phone terminal called a smart phone or the like can be used. Further, for example, a portable terminal such as a pad-type information terminal or a tab-red information terminal or a portable terminal such as an electronic book reader can be used in place of the portable telephone terminal 5 of the above-described embodiment. That is, various mobile terminals provided with a display element can be used as the mobile terminal in the present invention.

  In addition, the operation input unit 521 of the mobile phone terminal 5 may be configured as a so-called software keyboard realized by display information displayed on the display screen and a touch panel attached to the display screen.

  Thus, even when various portable terminals are used, when the portable terminal is used as a display device of a telephone terminal configured with the dock device 4, the original function of the portable terminal is stopped, It only needs to function as a display element of a telephone terminal. The original function of the mobile terminal is, for example, a function of displaying electronic book data when the mobile terminal is an electronic book reader, and when the mobile terminal is a pad-type information terminal, for example, accessing the Internet. This means an original function for realizing the original use of the pad type information terminal, such as sending and receiving information and displaying data held in the device itself. In other words, the original function as a mobile terminal means a function that the mobile terminal can realize alone.

  DESCRIPTION OF SYMBOLS 1 ... SIP server, 101 ... Connection terminal to IP network, 102 ... IP network I / F, 103 ... Packet disassembly / generation part, 104 ... Telephone network I / F, 105 ... Connection terminal to telephone network, 106 ... Address Management DB 107 ... LAN I / F 108 ... LAN connection terminal 110 ... control unit 2A, 2B ... LAN cable 3 ... hub device 4 ... dock device 401 ... LAN connection terminal 402 ... LAN I / F 403: Packet processing unit 404: Call voice input / output I / F, 405 ... Handset connection terminal, 406 ... Handset, 407 ... Ringer, 408 ... Operation input unit, 409 ... Operation input I / F, 411 ... External terminal, 412 ... External I / F, 413 ... Charging current supply unit, 414 ... AC outlet, 421 ... Connected terminal registration memory, 422 ... Terminal registration leaving processing unit, 423 ... Messe Processing unit, 424 ... display control message providing unit, 430 ... control unit, 5 ... mobile phone terminal, 501 ... transmission / reception antenna, 502 ... telephone communication unit, 503 ... transmission / reception signal processing unit, 504 ... call voice processing unit, 505 ... Telephone receiver, 506... Handset, 507... Transmitter, 508. Transmitter amplifier, 511. Message processing section, 512... Terminal information providing section, 514. F, 523 ... Display controller, 524 ... Display, 525 ... Ringer, 531 ... External terminal, 532 ... External I / F, 533 ... Charging circuit, 534 ... Battery, 540 ... Control unit, 6 ... IP network, 7 ... Telephone network

Claims (7)

A telephone system formed by connecting a dock device to an exchange device connected to a wide area network and connecting a mobile terminal to the dock device,
The dock device is
A first connection end enabling connection to the exchange device;
A second connection end for enabling connection of the mobile terminal;
A handset and transmitter;
Call voice processing means for processing a received voice to be supplied to the receiver and a transmitted voice from the transmitter so as to make a call;
An operation input means for receiving an operation input from a user;
Terminal registration processing means for registering the mobile device as a subordinate telephone terminal with respect to the switching device when the portable terminal is connected to the second connection end;
Message processing means for processing message information for control to be transmitted to and received from the switching device connected through the first connection end;
Display control message providing means for forming message information for display control for the portable terminal connected through the second connection end and providing the message information to the portable terminal;
The portable terminal is
A connection end for an external device that allows connection to the dock device;
Display means;
And a display control means for controlling display processing on the display means based on the display control message information from the dock device connected through the connection end for the external device. . The telephone system according to claim 1,
The dock device is
Storage means for storing identification information of one or more portable terminals that can be connected to the own device through the second connection end;
A request providing means for forming a provision request for identification information of the portable terminal when the portable terminal is connected to the second connection end, and providing the request to the portable terminal;
Based on the identification information of the portable terminal provided from the portable terminal in response to the provision request, the portable terminal connected to the second connection end with reference to the information in the storage means And a determination means for determining whether or not it is connectable,
The terminal registration processing means of the dock device determines that the mobile terminal connected to the second connection end is connectable to the mobile device when the mobile terminal connected to the second connection end is connectable to the mobile device. Registered as a subordinate phone terminal,
The portable terminal is
Terminal information storage means for storing identification information of the device itself;
Terminal information providing means for providing identification information of the own device stored in the terminal information storage means to the dock device when a request for provision of identification information of the portable terminal is received from the dock device. A phone system characterized by The telephone system according to claim 1 or 2, wherein
The dock device is
When the connection of the portable terminal to the second connection end is disconnected, the mobile terminal is provided with a terminal detachment processing means for detaching itself from a telephone terminal under control of the exchange device. Phone system. The telephone system according to claim 1, claim 2 or claim 3,
The portable terminal is
A function stop control means for controlling the mobile terminal to stop a function that can be realized independently when connected to the dock device through the external device connection end;
And a functional operation control means for controlling the portable terminal to operate a function that can be realized independently when the connection to the dock device through the connection end for the external device is disconnected. And phone system. The dock device of the telephone system formed by connecting a dock device to an exchange device connected to a wide area network and connecting a portable terminal to the dock device,
A first connection end enabling connection to the exchange device;
A second connection end for enabling connection of the mobile terminal;
A handset and transmitter;
Call voice processing means for processing a received voice to be supplied to the receiver and a transmitted voice from the transmitter so as to make a call;
An operation input means for receiving an operation input from a user;
Terminal registration processing means for registering the mobile device as a subordinate telephone terminal with respect to the switching device when the portable terminal is connected to the second connection end;
Message processing means for processing message information for control to be transmitted to and received from the switching device connected through the first connection end;
A docking device comprising: display control message providing means for forming display control message information for the portable terminal connected through the second connection end and providing the message information to the portable terminal. The mobile terminal of the telephone system formed by connecting a dock device to an exchange device connected to a wide area network and connecting a mobile terminal to the dock device,
A connection end for an external device that allows connection to the dock device;
Display means;
Display control means for controlling display processing on the display means based on the message information for display control from the dock device connected through the connection end for the external device. . A device connection method in a telephone system formed by connecting a dock device to an exchange device connected to a wide area network and connecting a portable terminal to the dock device,
The dock device includes a first connection end that enables connection to the exchange device, a second connection end that enables connection of the mobile terminal, a receiver and a transmitter, and a receiver. It comprises a call voice processing means for processing a received voice to be supplied and a voice sent from the transmitter and making a call, and an operation input means for receiving an operation input from a user,
In the dock device,
A terminal registration processing step in which, when the portable terminal is connected to the second connection end, the terminal registration processing means registers the own device as a subordinate telephone terminal with respect to the exchange device;
A message processing step in which message processing means processes message information for control to be transmitted to and received from the switching apparatus connected through the first connection end;
A display control means for forming display control message information for the portable terminal connected through the second connection end and providing the message information to the portable terminal; and
In the mobile terminal,
The display control means has a display control step of controlling display processing on the display means based on the message information for display control from the dock device connected through the connection end for the external device. Device connection method in telephone system.

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