JP4670344B2 - COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND COMMUNICATION PROGRAM - Google Patents

Description

  The present invention relates to a communication system, a communication method, and a communication program. For example, the present invention is preferably applied to a case where a plurality of multi-key telephones (MKT), doorphones, etc. are installed on an IP network and accommodated in an IP-PBX. It is.

  Conventionally, it has been possible to perform VoIP communication using a multi-key telephone accommodated in an IP-PBX.

  In addition, as a method for setting basic configuration information related to TCP / IP for the multi-key telephone or the like, there is a method using DHCP. When DHCP is used, management is easier and setting errors are less likely to occur than when manually setting individual multi-key telephones. This is because, even when the administrator changes the configuration information, it is not necessary to move to individual multi-key telephones and perform setting operations manually, and it is only necessary to change the registered contents of the DHCP server.

As a conventional technique related to DHCP, there is one described in Patent Document 1 below.
JP 2000-059387 A

  However, since only the basic configuration information related to TCP / IP (for example, IP address, default gateway, etc.) described above can be set by DHCP, functions specific to the telephone can be set by DHCP. Can not.

  For example, in the case of a multi-key telephone, it is possible to assign various functions (free functions) to a large number of keys (function buttons) and to dynamically change the assigned functions. In other words, it is necessary for an administrator or the like to manually set each multi-key telephone. For this reason, setting mistakes are likely to occur, and the work burden for setting is large.

  The fact that setting mistakes are likely to occur leads to a reduction in communication reliability in a broad sense, and that a large work burden for setting reduces convenience.

In order to solve such a problem, in the first aspect of the present invention, one or a plurality of multi-function telephone terminals mounted with a large number of operation parts corresponding to a large number of functions that can be changed and assigned a fixed physical address are provided. In the communication system comprising the private branch exchange for managing the multifunction telephone terminal, (1) the private branch exchange (1-1) includes a communication setting information group including a network layer address relating to the multifunction telephone terminal. A registered communication setting information group registration unit; and (1-2) basic configuration information related to TCP / IP accompanied by the physical address from the multi-function telephone terminal when the multi-function telephone terminal is initially activated . If the setting information request signal for requesting to provide arrives, the terminal setting corresponding unit to return the communication setting information group acquired from the communication setting information group registration unit in the multi-function telephone terminal (1-3) from said receiving said communication setting information group sent back set in its multi-function telephone terminal, the initial registration REGISTER message corresponds including a dummy SIP-URI with the physical address or network layer address A terminal initial registration execution unit that shifts to a registration state based on the dummy SIP-URI, which can exchange a SIP message with the multi-function telephone terminal when a request signal arrives; and (1-4) the operation A telephone setting information group including an extension number related to a function as a telephone of the multi-function telephone terminal, including assignment of functions of parts, and registered in a format corresponding to the physical address or network layer address a registration unit, a multi-function telephone terminal set to itself (1-5) before Symbol communication setting information group, the physical address or When a request signal by a SUBSCRIBE message corresponding to a telephone setting request signal with a network layer address arrives, the telephone setting information group registration unit changes the physical address or network layer address based on the physical address or network layer address. A corresponding telephone setting information group is acquired, and a NOTIFY message including the acquired telephone setting information group is returned to the multi-function telephone terminal ; and (1-6) the telephone setting information group that has received the return is When a registration deletion request signal by a REGISTER message for requesting deletion of the registration state based on the dummy SIP-URI accompanied by the physical address or network layer address is received from the multi-function telephone terminal set to itself, the registration based on the dummy SIP-URI Remove the state, the same of the multifunctional telephone terminal is transmitted to the subsequent startup, if the re-registration request signal REGISTER message containing extension corresponds arrives, SIP messages between the multi-function telephone terminal and a terminal re-registration execution unit to shift again to the registration ready to send and receive, (2) the multi-function telephone terminal (2-1) initial wherein transmitting a setting information request signal at startup setting information request signal transmitting unit when the (2-2) if the setting information request the communication setup information group on the signal has been sent back, the communication setting execution unit that sets the communication setting information group in the self multifunction telephone terminal, (2- 3) after the setting by the communication setting execution unit is finished, the initial registration request signal transmission unit which transmits the initial registration request signal, (2-4) after transmission of the initial registration request signal, the telephone set request signal A telephone setting request signal transmitting unit that transmits, (2-5) if the phone setting request said telephone set information group on the signal has been returned, sets the telephone set information group in the self multifunction telephone terminal A telephone setting execution unit; and (2-6) after the telephone setting information group is returned in response to the telephone setting request signal , the registration deletion request signal is transmitted and a re-registration request signal is transmitted at the subsequent startup. characterized in that a re-registration Rokuyo demand signal transmitting section for transmitting.

According to the second aspect of the present invention, one or a plurality of multi-function telephone terminals each equipped with a large number of operation parts corresponding to a large number of functions that can be changed and assigned with a fixed physical address; (1) In the private branch exchange, the communication setting information group registration unit includes a network layer address related to the multi-function telephone terminal in a format associated with the physical address. The telephone setting information group including the extension number related to the function as the telephone of the multi-function telephone terminal, including the assignment of the function of the operation component in the telephone setting information group registration unit, the registration of the setting information group, (2) A setting information request signal transmission unit of the multi-function telephone terminal that is initially activated, registered in a format associated with a physical address or a network layer address Transmits a setting information request signal for requesting provision of TCP / IP-related basic configuration information accompanied by the physical address . (3) The terminal setting corresponding unit of the private branch exchange apparatus transmits the setting information request. If the signal arrives, and sends back the previous SL communication setting information group acquired from the communication setting information group registration unit in the multi-function telephone terminal, (4) the communication setting execution unit of the multi-function telephone terminal, the setting information request When the communication setting information group is returned in response to the signal, the communication setting information group is set in the own multifunction telephone terminal. (5) The initial registration request signal transmission unit of the multifunction telephone terminal After the setting by the setting execution unit is completed, the initial registration request corresponding to the REGISTER message including the dummy SIP-URI with the physical address or the network layer address is applicable. (6) when the initial registration request signal arrives, the terminal initial registration execution unit of the private branch exchange apparatus can exchange a SIP message with the multi-function telephone terminal. (7) After the initial registration request signal is transmitted , the telephone setting request signal transmission unit of the multi-function telephone terminal sets the telephone setting by the SUBSCRIBE message with the physical address or the network layer address. (8) When the telephone setting request signal arrives , the telephone setting corresponding unit of the private branch exchange apparatus sets the telephone setting based on a physical address or a network layer address accompanying the telephone setting request signal. Obtain the telephone setting information group corresponding to the physical address or network layer address from the information group registration unit, and The NOTIFY message including the setting information group and return to the multi-function telephone terminal, (9) the telephone set execution unit of the multi-function telephone terminal sets the phone setting information group that received a return in its own multi-function telephone terminal And
The re-registration Rokuyo demand signal transmitting unit of the multi-function telephone terminal, after which the telephone set information group with respect to the telephone set request signal is sent back, the associated physical address or network layer address, the dummy SIP sends a registration deletion request signal by rEGISTER message requesting the deletion of the registration status based on-URI, the subsequent startup, sends a re-registration Rokuyo determined signal rEGISTER message containing an extension is applicable, (10) The terminal re- registration execution unit of the private branch exchange apparatus deletes the registration state based on a dummy SIP-URI when the registration deletion request signal arrives, and the same multifunction telephone terminal A registration state in which a SIP message can be exchanged with the multi-function telephone terminal when the re-registration request signal transmitted at the start-up arrives It is characterized by shifting again to.

Furthermore, in the third aspect of the present invention, one or a plurality of multi-function telephone terminals mounted with a large number of operation parts corresponding to a large number of functions that can be changed and assigned with a fixed physical address, and the multi-function telephone terminal (1) In the private branch exchange apparatus, the communication setting information group includes (1-1) a communication setting information group including a network layer address relating to the multi-function telephone terminal. Information group registration function and (1-2) Setting for requesting provision of TCP / IP-related basic configuration information accompanied by the physical address from the multi-function telephone terminal when the multi-function telephone terminal is initially activated If the information request signal arrives, the terminal sets the corresponding machine for returning the communication setting information group acquired from the communication setting information group registration function to the multi-function telephone terminal If, (1-3) from said receiving said communication setting information group sent back set in its multi-function telephone terminal, the physical address or a dummy SIP-URI laden REGISTER message with a network layer address corresponds (1-4) a terminal initial registration execution function for shifting to a registration state based on the dummy SIP-URI, which can exchange a SIP message with the multi-function telephone terminal when an initial registration request signal arrives; A telephone setting in which a telephone setting information group including an extension number related to the function as a telephone of the multi-function telephone terminal, including assignment of the function of the operation component, is registered in a format corresponding to the physical address or the network layer address. and information group registration function, from the multi-function telephone terminal set to itself (1-5) before Symbol communication setting information group, the physical a When a request signal by a SUBSCRIBE message corresponding to a telephone setting request signal with a dress or network layer address arrives, the telephone setting information group registration function changes the physical address or network layer address based on the physical address or network layer address. A corresponding telephone setting information group, a telephone setting support function for returning a NOTIFY message including the acquired telephone setting information group to the multi-function telephone terminal, and (1-6) the telephone setting information group that has received the return. When a registration deletion request signal by a REGISTER message for requesting deletion of the registration state based on the dummy SIP-URI accompanied by the physical address or network layer address is received from the multi-function telephone terminal set to itself, Based on dummy SIP-URI Remove the registration state had the same the multifunctional telephone terminal is transmitted to the subsequent startup, if the re-registration request signal REGISTER message containing extension corresponds arrives, between the multi-function telephone terminal in is realized and the terminal re-registration execution function to re-transition to the registration ready to send and receive SIP messages, (2) in the multi-function telephone terminal, the computer, (2-1) transmits the setting information request signal at the time of initial startup a setting information request signal transmitting function of, (2-2) if the setting information request the communication setup information group on the signal has been sent back, the communication settings for setting the communication setting information group in the self multifunction telephone terminal and executing function, and (2-3) after setting by the communication setting execution function has been completed, the initial registration request signal transmission function for transmitting the initial registration request signal, (2-4) before After sending the initial registration request signal, the telephone set request signal transmission function of transmitting a phone setting request signal, (2-5) if the phone setting information group to the telephone set request signal is sent back, the telephone set A telephone setting execution function for setting an information group within the self-function telephone terminal ; and (2-6) transmitting the registration deletion request signal after the telephone setting information group is returned in response to the telephone setting request signal. while, characterized in that to achieve a subsequent transmitting a re-registration request signal to the startup again registered Rokuyo demand signal transmitting function.

  ADVANTAGE OF THE INVENTION According to this invention, the reliability of communication can be improved and the convenience can be improved.

(A) Embodiment Hereinafter, an embodiment will be described with reference to an example in which the communication system, the communication method, and the communication program according to the present invention are applied to a VoIP communication system using SIP (Session Initiation Protocol) as a call control protocol. .

(A-1) Configuration of Embodiment FIG. 5 shows an example of the overall configuration of the VoIP communication system 10 according to the present embodiment.

  In FIG. 5, the VoIP communication system 10 includes a LAN (local area network) 11, an IP exchange 12, a VoIP public network 13, a multi-function telephone 14, an FXO (Foreign eXchange Office) device 15, and an ISDN device 16. A door phone 17, a general telephone 18, and an ISDN terminal 19.

  Of these, the LAN 11 is a network that uses a LAN communication protocol such as IEEE 802.3 in the data link layer of the OSI reference model, and uses the IP protocol in the network layer of the OSI reference model. Such a LAN 11 can be constructed in various places. For example, the LAN 11 may be constructed in a private house or a small office.

  The VoIP public network 13 is a network used for VoIP communication using the IP protocol in the network layer. For example, an IP network constructed and operated by a specific communication carrier may be used as the VoIP public network 13, and the Internet may be used as the VoIP public network 13. A large number of VoIP communication terminals (not shown) exist on the VoIP public network 13 when viewed from the LAN 11.

  The IP exchange 12 is a kind of IP-PBX, which functions when VoIP communication is performed between the LAN 11 on the premises and the VoIP communication terminal on the VoIP public network 13, but has a different feature from the normal IP-PBX. Details of the IP exchange 12 will be described later.

  Among the components 11 to 19 on the LAN 11 side, the multi-function telephone 14, the FXO device 15, the ISDN device 16, and the door phone 17 that are directly connected to the LAN 11 are VoIP compatible communication devices and have a DHCP client function, A function for automatically acquiring and setting basic configuration information (for example, IP address, default gateway, etc.) related to TCP / IP from the IP exchange 12 serving as a DHCP server, simply by turning on and starting Have

  The ISDN device 16 has a function as a VoIP gateway. ISDN is used as a communication protocol between the ISDN device 16 and the ISDN terminal 19 accommodated in the ISDN device 16, but the user of the ISDN terminal 19 can perform VoIP communication by the function of the ISDN device 16.

  Similarly, the FXO apparatus 15 has a function as a VoIP gateway and accommodates a general telephone 18 that does not support VoIP. With the function of the FXO device 15, the user of the general telephone 18 can perform VoIP communication. The FXO device 15 may accommodate a G3 facsimile machine or the like instead of the general telephone 18.

  The door phone 17 is a normal door phone when viewed from the user, but is a communication device having a function of performing VoIP communication via the LAN 11.

  Similarly, the multi-function telephone 14 is a normal multi-function telephone (multi-key telephone) from the viewpoint of the user, but has a VoIP-compatible function, and has different characteristics from a normal multi-function telephone and an IP telephone. Details of the multi-function telephone 14 will be described later.

  In FIG. 5, for convenience of explanation, there are four types of communication devices 14 to 16 accommodated in the IP exchange 12 and directly connected to the LAN 11, and the same type of communication devices are illustrated one by one. Of course, it is not necessarily limited to this. For example, a plurality of multi-function telephones 14 may exist in the LAN 11. In the case of a small office or the like, it is often the case that a plurality of multi-function telephones 14 are arranged in the LAN 11 and employees use each multi-function telephone.

  The internal configuration of the IP exchange 12 may be as shown in FIG.

(A-1-1) Internal Configuration Example of IP Switch In FIG. 1, the IP switch 12 includes a WAN port unit 20, a control unit 21, a LAN port unit 22, a storage unit 23, and a multiline server unit 24. A telephone information registration unit 25, a DHCP server unit 26, a configuration information registration unit 27, a WAN-side channel number determination unit 28, and a station data storage unit 29.

  Most of the functions of these components 20 to 29 can be realized by software in a normal implementation.

  The WAN port unit 20 is a part connected to the VoIP public network 13, and the LAN port unit 22 is a part connected to the LAN 11. The communication protocol in the layer below the network layer of the OSI reference model may be processed mainly by the WAN port unit 20 or the LAN port unit 22.

  For example, when the multi-function telephone 14 talks with a user of a VoIP communication terminal on the VoIP public network 13, a packet (IP packet) containing a call control message via the WAN port unit 20 and the LAN port unit 22 Packets containing audio data are exchanged.

  Note that, in the configuration of the present embodiment, the configuration of the portion corresponding to the physical layer of the OSI reference model need not be particularly limited. Therefore, the LAN 11 may be a wired LAN or a wireless LAN. This also applies to the VoIP public network 13.

  The control unit 21 is a part that corresponds to a CPU (central processing unit) of the IP exchange 12 in terms of hardware, and a part that can correspond to an OS (operating system) in terms of software.

  The storage unit 23 is a part corresponding to nonvolatile storage means (hard disk, ROM, etc.) and volatile storage means (RAM etc.) in terms of hardware, and can be equivalent to various files in terms of software. is there. A function realized by software such as the OS can be one of such files in the form of a program file, a data file, or the like.

  The IP exchange 12 has two functions in addition to the original function as IP-PBX. One is a DHCP server function, and the other is a multi-line server function.

  Among these, since a normal DHCP server can be used as it is as a DHCP server, the development cost of the IP exchange 12 can be significantly suppressed by reusing existing software assets. In FIG. 1, the DHCP server unit 26 and the configuration information registration unit 27 correspond to the functions of the DHCP server.

  The configuration information registration unit 27 registers basic configuration information related to TCP / IP (for example, IP address, default gateway, etc.). In addition to general TCP / IP-related basic configuration information, in this embodiment, an IP address (multiline server IP address) that specifies the multiline server unit 24 is also included in the configuration information. . By acquiring the IP address of the multiline server, each communication device can communicate with the multiline server. Note that there are a plurality of multiline server units 24 (or communication devices having a function corresponding to the multiline server unit 24), such as a redundant configuration for the purpose of improving fault tolerance, etc. When an address is assigned, the multiline server has a plurality of IP addresses.

  Of the basic configuration information related to TCP / IP, the IP address needs to be assigned to each of the communication devices 14 to 17 while ensuring uniqueness. Only after receiving the assignment of the IP address, each of the communication devices 14 to 17 can perform original communication (for example, communication for VoIP communication or call control) by sending and receiving normal IP packets. The IP address allocation method by DHCP is a static allocation method in which which IP address is allocated to which communication device is fixed in advance, and which IP address is allocated to which communication device is fixed. Although it is not decided, it can be divided into dynamic allocation methods that can change each time. However, here, the description will proceed on the assumption of the dynamic allocation method.

  The dynamic allocation method is more flexible and a small number of IP addresses can be used more efficiently. For example, even if an IP address is assigned to the ISDN device 16, the same IP address can be assigned to another communication device (for example, the multi-function telephone 14) when the lease time expires. is there.

  The multiline server is a server that provides a multiline service. For example, when a call is received, a call is made at a plurality of telephone terminals (lights are lit), and the user of any of the telephone terminals can respond off-hook to the contents of the multiline service. In order to provide such a multi-line service, it is necessary to manage allocation of information (for example, a telephone setting information set described later) corresponding to an upper layer of the OSI reference model such as an application layer. In FIG. 1, the multiline server unit 24 and the telephone information registration unit 25 correspond to the functions of the multiline server.

  Therefore, the multi-line server unit 24 is also a part that can be a destination or a transmission source of various SIP messages.

  The telephone information registration unit 25 registers a telephone setting information set in a format associated with the MAC address of each communication device (for example, the multi-function telephone 14).

  Here, the telephone setting information set is a set of one or more types of information related to the telephone. For example, extension information, FK information, special number information, synchronization information, and the like can be used as the information. Of these, the extension information is an extension telephone number assigned to each telephone terminal (for example, 14 or 15). The FK information is information for designating the assignment of functions related to free function keys (FK), that is, function buttons.

  For example, if the multi-function telephone 14 is equipped with 12 function buttons from 01 to 12, any function can be assigned to some or all of the 12 function buttons. The FK information describes what function is assigned to which function button of the function telephone (for example, 14). Of course, the content of the FK information may be different for each multi-function telephone.

  The special number information is a number for designating a specific calling method arbitrarily set in the IP exchange 12, and normally, a specific calling method can be realized by adding the dial to the head and dialing. For example, when making a call to an outside line, if “0” is added to the beginning and the telephone number of the call destination is dialed, the “0” needs to be described in the special number information as a number for making an outside line call. is there.

  The synchronization information is information related to ringer synchronization.

  Here, the content of the telephone setting information set assumes that the communication application is a telephone, but may be applicable to communication applications other than telephones. For example, function assignment based on the telephone setting information set may be performed for an arbitrary communication application that needs to designate function assignment related to function buttons, such as function buttons of the multi-function telephone 14.

  The WAN-side channel number determination unit 28 is a part that automatically determines the number of channels (public side channels) provided on the WAN port unit 20 side of the IP switch 12, and the public-side channel obtained as a determination result. The number is automatically notified to the multiline server unit 24. Depending on the number of public-side channels, the number of VoIP communication terminals (for example, multi-function telephone 14) on the LAN 11 side that can simultaneously communicate with the VoIP communication terminal on the VoIP public network 13 side via the IP exchange 12 is limited.

  Conventionally, when a public-side channel is added to an IP exchange (IP-PBX) or the like, in order to make the multi-line server unit recognize it, it has been necessary for an administrator or the like to manually set that fact. However, the function of the WAN side channel number determination unit 28 eliminates the burden of setting work.

  The station data storage unit 29 is a part for storing predetermined station data. The station data includes various accommodation terminal information, accommodation line information, and the like. Here, the accommodation terminal refers to each communication device (14, 16, etc.) accommodated by the IP exchange 12 via the LAN 11. Accordingly, the accommodation terminal (communication device) information includes the correspondence between the IP address and telephone number of each communication device, FK information regarding the accommodation terminal, and the like. The accommodated line information may include the result of totaling the number of channels of each accommodated terminal, the number of public-side channels, and the like.

  Since the telephone setting information set can also be included in the station data, the telephone information registration unit 25 can be a part of the station data storage unit 29, although it is illustrated as a separate component in FIG. The telephone information registration unit 25 may be used for storing the telephone setting information set, and the station data storage unit 29 may be used as a working storage area.

  On the other hand, the internal configuration of the multifunction telephone 14 may be as shown in FIG. When other multifunction telephones exist in the LAN 11, the internal configuration is the same. A communication device other than the multi-function telephone 14 directly connected to the LAN 11 on the LAN 11 basically has the same internal configuration as that of the multi-function telephone 14 except that it does not have the components 33 to 36.

(A-1-2) Internal Configuration Example of Multi-Function Telephone In FIG. 2, the multi-function telephone 14 includes a communication unit 30, a control unit 31, a storage unit 32, a display unit 33, a call unit 34, A dial operation unit 35, a multi-function operation unit 36, a configuration setting processing unit 37, and a telephone setting processing unit 38 are provided.

  Among them, the communication unit 30 corresponds to the LAN port unit 22, the control unit 31 corresponds to the control unit 21, and the storage unit 32 corresponds to the storage unit 23.

  The components 33 to 36 are parts constituting the user interface. Here, it is assumed that the multi-function telephone 14 is used by the user U1.

  The display unit 33 among the components 33 to 36 is configured by, for example, a liquid crystal display device and the like, and is a part that transmits various information from the multi-function telephone 14 to the user U1.

  The call unit 34 is a component including a speaker for the user U1 to listen to the voice uttered by the call partner and a microphone for collecting the voice uttered by the user U1 and transmitting it to the call partner. It can be equivalent.

  The dial operation unit 35 is a part configured with buttons and the like that are operated when the user U1 designates a call destination.

  The multi-function operation unit 36 is a part constituted by the above-described function buttons (function keys). Although the number of function buttons mounted on one multifunction telephone 14 may be any number, the multifunction telephone normally includes a large number of function buttons. Here, it is assumed that the multi-function telephone 14 has 12 function buttons. Since any function is assigned to each function button according to the FK information, the multi-function operation unit 36 responds to such assignment, and when the content of the assignment changes, the function button 36 responds to the change. It is necessary to change the function of each function button.

  The configuration setting processing unit 37 corresponds to the function of the DHCP client, and receives the above-described basic configuration information related to TCP / IP from the DHCP server unit 26. The information set here includes an IP address assigned to the multi-function telephone 14 from the DHCP server unit 26, a default gateway, and the like, as well as an IP address for specifying the multi-line server unit 24 (multi-line server IP address). Address).

  Only when the IP address of the multiline server is set in the configuration setting processing unit 37, the multi-function telephone 14 can transmit an IP packet addressed to the multiline server unit 24. It is also possible to receive provision of the telephone setting information set by the line server unit 24.

  The telephone setting processing unit 38 is a part corresponding to the client function for the multi-line server unit 24 and transmits a telephone setting request signal including the terminal attribute ID and the number of channels of the multi-function telephone 14, and as a response, the multi-line server The unit 24 receives the telephone setting information set.

  Here, the terminal attribute ID is information composed of the MAC address of the communication device (here, the multifunction telephone 14) and device type information. The MAC address is unique identification information in a global range, and is fixedly assigned in the manufacturing process of each communication device. The device type information is information indicating the device type of each communication device. Depending on the device type, the type of information included in the set of telephone setting information to be provided can be different, and thus device type information is required. For example, a telephone setting information set provided to a communication device (for example, ISDN device 16) not equipped with a function button substantially does not require FK information, but is provided to a multi-function telephone 14 equipped with a function button. FK information is required for the telephone setting information set to be performed.

  If the device type information of each communication device is managed in a format associated with the MAC address on the multiline server unit 24 side, the device type information can be specified from the MAC address on the multiline server unit 24 side. It is also possible to adopt a configuration in which the device attribute information is not included in the terminal attribute ID.

  Since the telephone setting information set is information at the communication application level, it directly affects the details of user U1's usability. For example, the extension number specified by the extension information included in the telephone setting information set received from the multiline server unit 24 by the telephone setting processing unit 38 becomes the extension number of the multi-function telephone 14 as it is. The designation of the function assignment for each function button determines the function button function of the multi-function telephone 14 as it is. If the user who uses the multi-function telephone 14 changes to a user separate from U1 (referred to as U2) and wants to use the extension number that the user U2 has previously used on a separate telephone terminal on the multi-function telephone 14 Therefore, it is necessary to change the extension number of the multi-function telephone 14.

  The configuration of the appearance of the multifunction telephone 14 may be the same as that of a normal multifunction telephone. However, if necessary, for example, software for realizing the function of the multifunction telephone can be installed in a personal computer or the like. In that case, the external appearance of the multi-function telephone 14 is a personal computer equipped with a speaker, a microphone, and the like.

  Hereinafter, the operation of the present embodiment having the above configuration will be described with reference to FIGS. Here, the description will proceed mainly focusing on the multi-function telephone 14 among the components 14 to 19.

  FIG. 6 shows an outline of the operation of the entire VoIP communication system 10. 3 and 4 are sequence diagrams showing detailed operations of the VoIP communication system 10. The processing of FIG. 4 follows the processing of FIG.

  6 includes steps S1 to S5, the sequence diagram of FIG. 3 includes steps S10 to S26, and the sequence diagram of FIG. 4 includes steps S30 to S41. .

(A-2) Operation of Embodiment In FIG. 3, when the multi-function telephone 14 is activated by turning on the power (S10), the configuration setting processing unit 37 in the multi-function telephone 14 is set to the DHCP protocol. Accordingly, the provision of basic configuration information related to TCP / IP is requested (S11), and in response to this request, the DHCP server unit 26 in the IP exchange 12 provides the configuration information (S12). This corresponds to step S1 shown in FIG.

  As described above, the configuration information provided here includes the IP address of the multi-function telephone 14 and the IP address of the multi-line server.

  Before and after step S12, in the IP exchange 12, the WAN side channel number determination unit 28 automatically determines the number of public side channels provided on the WAN port unit 20 side, and the multiline server unit 24 (S13). This corresponds to step S3 in FIG.

  Following the step S13, the IP exchange 12 acquires information such as an IP address set in its own WAN port unit 20 (S14). In the example of FIG. 3, steps S13 and S14 are executed following step S12. However, it is natural that the steps S13 and S14 may be executed before step S10. Normally, it is considered that any communication device (for example, 16) in the LAN 11 is activated before the multifunction telephone 14 is activated. However, any communication device in the LAN 11 is activated. This is because, of course, the IP exchange 12 needs to be activated.

  Following step S14, the multi-function telephone 14 transmits a REGISTER message that is a request for registration to the IP exchange 12 (S15). In SIP, since SIP-URI is used as identification information for identifying a user, the REGISTER message, which is one of SIP messages, is included in the SIP-URI of the user U1 who uses the multi-function telephone 14 according to the SIP protocol standard. Must be described.

  However, the example of FIG. 3 shows a case where nothing is set in the multi-function telephone 14 because it is the beginning of use. Therefore, since the multi-function telephone 14 is described in the SIP message and the SIP-URI to be requested for registration is unknown, a dummy SIP-URI is described in the Contact field, and the dummy SIP-URI is registered. . In the From field and To field of the REGISTER message, the IP address of the multi-line server is described, which is included in the configuration information provided in step S12.

  The REGISTER message is naturally transmitted in a form accommodated in an IP packet. In the header of this IP packet, the IP address assigned to the multi-function telephone 14 in step S12 is described as the source IP address, and the multi-line transmitted to the multi-function telephone 14 in step S12 as the destination IP address. The IP address of the server is described.

  The exchange of SIP messages after step S15 is performed between the multiline server unit 24 in the IP exchange 12 and the telephone setting processing unit 38 in the multi-function telephone 14.

  Following the step S15, the multi-line server unit 24 stores station data, that is, various accommodation terminal information and accommodation line information including the telephone setting information set, etc. in the station data storage unit 29 (S16). However, this step S16 may also be already executed for a communication device other than the multi-function telephone 14 (for example, 16). In the case where it has already been executed, it is only necessary to perform the process of reflecting the portion of the multi-function telephone 14 in the station data on the station data storage unit 29 here. Step S16 corresponds to step S5 in FIG.

  When the process of step S16 is completed, the IP exchange 12 returns a 200 OK message to the multi-function telephone 14 (S17). Here, “200” is a response code indicating that the request (in this case, the request in step S15) is successful, and “OK” is a reason sentence indicating the meaning of “200”.

  Next, the multi-function telephone 14 transmits a SUBSCRIBE message, which is a signal corresponding to the above-described telephone setting request signal, to notify that it has been activated and is ready to receive data transfer (S18). This corresponds to step S2 shown in FIG. Therefore, the terminal attribute ID described above is included in the body of the SUBSCRIBE message.

  The IP exchange 12 that has received the SUBSCRIBE message in step S18 returns a 200 OK message (S19) and returns a NOTIFY message to transfer data (S20). The data transferred here may include one of each type of information belonging to the above-described telephone setting information set. It is possible to take a configuration for transferring a plurality of types of information at the same time, and it is possible to take various configurations for the order of transferring each type of information, but in the illustrated example, The extension information is transferred first. In the example shown in the figure, since the information is transferred one by one, the multi-function telephone 14 transmits a 200 OK message each time a new type of information is received (S21 to S24).

  Among the information transferred in this way, the true SIP-URI of the user U1 registered in advance in the IP exchange 12 (for example, may be registered as a part of the telephone setting information set). It may be included. Alternatively, depending on the configuration of the multi-function telephone 14, the user U1 or the like may directly set a true SIP-URI on the multi-function telephone 14 before and after step S24.

In any case, since the dummy SIP-URI registered in step S15 is already unnecessary after step S24, the multi-function telephone 14 requests the deletion by the REGISTER message in step S25. Upon receiving this, the IP exchange 12 deletes the dummy SIP-URI and returns a 200 OK message (S26).

  Information transferred to the multi-function telephone 14 in steps S19 to S23 is stored in the non-volatile storage means of the storage section 32 by the telephone setting processing section 38 in the multi-function telephone 14. Therefore, even when the power of the multi-function telephone 14 is turned off, the memory is maintained.

  Therefore, the procedure following the second and subsequent activations of the multi-function telephone 14 is as shown in FIG. 4 and is different from FIG. Although not shown in FIG. 4, the procedure corresponding to steps S11 and S12 may be executed after the second and subsequent activations as necessary.

  In any case, after the IP address of the multi-line server is known, the multi-function telephone 14 is addressed to the IP address of the multi-line server and, as shown in FIG. 4, REGISTER for registering the extension number. A message is transmitted (S30). In step S30, a true SIP-URI may be used together with the extension number or instead of the extension number.

  The subsequent processing is basically the same as in FIG.

  That is, in FIG. 4, step S30 corresponds to step S15, step S31 corresponds to step S17, step S32 corresponds to step S18, step S33 corresponds to step S19, and step S34 corresponds to the step S18. Since step S20 corresponds to step S21, step S35 corresponds to step S23, step S36 corresponds to step S23, and step S37 corresponds to step S24, detailed description thereof will be omitted.

  However, prior to transmission of each NOTIFY message in FIG. 4 (for example, step S36), the IP switch 12 compares the telephone related to the multi-function telephone 14 with respect to the data already transferred to the multi-function telephone 14. If there is no change in the contents of the set information set, if there is no change, as shown in step S36 in the example shown in the figure, "transfer complete" is notified, the data transfer is completed, and the change is made. If it is, the corresponding information (extension information here) is transferred as shown in step S34 in the illustrated example. The change occurs because the administrator or the like changes the corresponding information in the telephone setting information set on the IP switch 12 between the last time the NOTIFY message is sent and the time the NOTIFY message is sent this time. This is the case.

  The processing after step S38 is the same as this.

  For example, when the multi-function telephone 14 transmits an FK status notification request (request for transferring FK information in the telephone setting information set) by the SUBSCRIBE message in step S38, the IP exchange 12 returns a 200 OK message (S39). A NOTIFY message containing valid contents is returned instead of “transfer complete” (S40), but this is registered in the IP switch 12 compared to the FK information already transferred to the multi-function telephone 14. This is because the contents of the latest FK information being changed. In this case, the content of the FK information in the telephone setting information set stored in the storage unit 32 of the multi-function telephone 14 is changed (refreshed) based on the data received this time.

  Of the twelve function buttons (01 to 12) mounted on the multi-function telephone 14, functions are assigned to the function buttons such as 01 and 02 in the body of the NOTIFY message transmitted in step S40 ( This indicates that no function is assigned to a function button such as 03, 12 (corresponding to “empty”).

  The multi-function telephone 14 that has received the NOTIFY message in step S40 returns a 200 OK message (S41).

  Assuming that the FK information is the last information in the telephone setting information set related to the multi-function telephone 14, the setting of the telephone setting information set for the multi-function telephone 14 is finished in step S41.

  When the setting of the telephone setting information set is completed, the user U1 can use the multi-function telephone 14.

  As shown in FIG. 6, a communication device (for example, the FXO device 15) other than the multi-function telephone 14 connected to the LAN 11 can also execute the processes of steps S1, S2, and S4 when activated. However, when the device type information of the device indicates that the communication device does not have a function button, step S4 for assigning a function to the function button (step S40 for transferring FK information). Etc.) may be omitted. The IP exchange 12 can determine whether or not it is necessary to transfer FK information to each communication device based on the device type information.

  In this embodiment, if the administrator or the like manages only the registration contents of the IP exchange 12 (for example, the registration contents of the telephone information registration unit 25 and the registration contents of the configuration information registration unit 27) within the LAN 11, Since there is no need to manually perform setting operations on the communication devices (for example, the multi-function telephone 14 and the ISDN device 16), the work burden for management is greatly reduced.

  In addition, since setting mistakes and the like are unlikely to occur, for example, function assignment to each function button of the multi-function telephone 14 is performed accurately, and confusion is not caused due to failure to perform correct assignment. Communication reliability is increased.

(A-3) Effect of Embodiment According to the present embodiment, it is possible to improve communication reliability and convenience.

  In addition, many of the functions of the IP exchange (12) used in this embodiment, such as the DHCP server unit (26) and the configuration information registration unit (27), are realized by reusing existing software assets as they are. Therefore, it is excellent in feasibility and can greatly reduce development costs.

(B) Other Embodiments In the above embodiment, the door phone 17 and the multi-function telephone 14 are equipped with a VoIP compatible function and are directly connected to the LAN 11. Needless to say, the LAN 11 may be connected via the VoIP gateway. However, in that case, for example, many of the functions of the multi-function telephone 14 described above are implemented in the VoIP gateway.

  In the above-described embodiment, the telephone information registration unit 25 registers the telephone setting information set in a format associated with the MAC address of each communication device. However, if necessary, the telephone information registration unit 25 may replace the MAC address or the MAC address. Thus, the telephone setting information set may be registered in a format associated with the IP address. However, in this case, if the above-described dynamic allocation method is assumed, every time the IP address allocated to each communication device varies by DHCP, the variation needs to be reflected in the telephone information registration unit 25.

  The communication protocol exemplified in the above embodiment can be replaced with another communication protocol. For example, the IP protocol may be replaced with an IPX protocol as an example, and the SIP protocol may be replaced with another communication protocol.

  In the above description, most of the functions realized in hardware can be realized in software, and almost all the functions realized in software can be realized in hardware. .

It is the schematic which shows the example of an internal structure of the IP switch used by embodiment. It is the schematic which shows the example of an internal structure of the multi-functional telephone used by embodiment. It is a sequence diagram which shows the operation example of embodiment. It is a sequence diagram which shows the operation example of embodiment. 1 is a schematic diagram illustrating an example of the overall configuration of a communication system according to an embodiment. It is the schematic which shows the operation example of embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Communication system, 11 ... LAN, 12 ... IP switch, 13 ... VoIP public network, 14 ... Multi-function telephone, 15 ... FXO apparatus, 16 ... ISDN apparatus, 17 ... Door phone, 18 ... General telephone, 19 ... ISDN terminal, DESCRIPTION OF SYMBOLS 20 ... WAN port part, 21, 31 ... Control part, 22 ... LAN port part, 23, 32 ... Memory | storage part, 24 ... Multi-line server part, 25 ... Telephone information registration part, 26 ... DHCP server part, 27 ... Configuration Information registration unit 28 ... WAN side channel number determination unit 29 ... Station data storage unit 30 ... Communication unit 33 ... Display unit 34 ... Communication unit 35 ... Dial operation unit 36 ... Multifunction operation unit

Claims (4)

Equipped with one or a plurality of multi-function telephone terminals equipped with a large number of operation parts corresponding to a large number of functions that can be changed and assigned with a fixed physical address, and a private branch exchange apparatus for managing the multi-function telephone terminals In the communication system
The private branch exchange is
A communication setting information group registration unit that registers a communication setting information group including a network layer address related to the multi-function telephone terminal;
When a setting information request signal for requesting provision of basic configuration information related to TCP / IP with the physical address is received from the multi-function telephone terminal at the time of initial activation of the multi-function telephone terminal, the communication setting & Devices corresponding unit to return the communication setting information group obtained from the information group registration unit in the multi-function telephone terminal,
An initial registration request signal corresponding to a REGISTER message including a dummy SIP-URI with the physical address or network layer address has arrived from the multi-function telephone terminal that has set the communication setting information group that has been returned to itself. A terminal initial registration execution unit for transferring to a registration state based on the dummy SIP-URI, which can exchange a SIP message with the multi-function telephone terminal;
A telephone setting in which a telephone setting information group including an extension number related to the function as a telephone of the multi-function telephone terminal, including assignment of the function of the operation component, is registered in a format corresponding to the physical address or the network layer address. An information group registration unit;
From the multi-function telephone terminal sets the previous SL communication setting information group to itself, if the request signal by SUBSCRIBE message corresponding to a telephone set request signal with the physical address or network layer address arrives, the physical address or network layer address The telephone setting information group corresponding to the physical address or the network layer address is acquired from the telephone setting information group registration unit, and the NOTIFY message including the acquired telephone setting information group is returned to the multi-function telephone terminal. Corresponding part ,
By a REGISTER message requesting deletion of the registration state based on the dummy SIP-URI accompanied by the physical address or network layer address from the multi-function telephone terminal that has set the telephone setting information group that has been returned to itself When a registration deletion request signal arrives, the registration state based on the dummy SIP-URI is deleted, and the REGISTER message including the extension number transmitted by the same multifunction telephone terminal at the subsequent startup corresponds When a re-registration request signal arrives, a terminal re- registration execution unit that transitions again to a registration state in which a SIP message can be exchanged with the multi-function telephone terminal,
The multi-function telephone terminal
A setting information request signal transmitting unit which transmits the setting information request signal at the time of initial startup,
When the communication setting information group is returned in response to the setting information request signal, a communication setting execution unit that sets the communication setting information group in the own multifunction telephone terminal;
After the setting by the communication setting execution unit is completed, an initial registration request signal transmission unit that transmits the initial registration request signal;
A telephone setting request signal transmitting unit for transmitting a telephone setting request signal after transmitting the initial registration request signal ;
When the telephone setting information group is returned in response to the telephone setting request signal, a telephone setting execution unit that sets the telephone setting information group in the multifunction telephone terminal ;
After which the telephone set information group with respect to the telephone set request signal is sent back, sends the registration deletion request signal, and re-registration Rokuyo demand signal transmitting unit for transmitting a re-registration request signal to the subsequent startup A communication system characterized by comprising: The communication system of claim 1.
The private branch exchange is
In addition to the multifunction telephone terminal, one or more types of communication terminals are accommodated,
The communication terminal is at least
A communication system comprising the setting information request signal transmission unit and a communication setting execution unit, and performing communication using the physical address and a network layer address. One or a plurality of multi-function telephone terminals equipped with a large number of operation parts corresponding to a large number of functions that can be changed and assigned with a fixed physical address, and a private branch exchange that manages the multi-function telephone terminal are used. In the communication method,
In the private branch exchange, the communication setting information group registration unit registers the communication setting information group including the network layer address related to the multi-function telephone terminal in a format associated with the physical address, and the telephone setting information group registration unit. A telephone setting information group including an extension number related to a function as a telephone of the multi-function telephone terminal, including assignment of the function of the operation component, is registered in a format corresponding to the physical address or the network layer address,
The setting information request signal transmission unit of the multi-function telephone terminal that is initially activated transmits a setting information request signal that requests provision of basic configuration information related to TCP / IP with the physical address ,
Terminal setting corresponding portion of the private branch exchange device sends back when the setting information request signal arrives, the previous SL communication setting information group acquired from the communication setting information group registration unit in the multi-function telephone terminal,
The communication setting execution unit of the multi-function telephone terminal sets the communication setting information group in the own multi-function telephone terminal when the communication setting information group is returned in response to the setting information request signal.
The initial registration request signal transmission unit of the multi-function telephone terminal receives the initial value corresponding to the REGISTER message including a dummy SIP-URI with the physical address or the network layer address after the setting by the communication setting execution unit is completed. Send a registration request signal,
The terminal initial registration execution unit of the private branch exchange apparatus shifts to a registration state based on the dummy SIP-URI that can exchange an SIP message with the multi-function telephone terminal when the initial registration request signal arrives. And
The telephone setting request signal transmission unit of the multi-function telephone terminal transmits a telephone setting request signal by a SUBSCRIBE message with the physical address or network layer address after transmitting the initial registration request signal ,
When the telephone setting request signal arrives , the telephone setting corresponding unit of the private branch exchange apparatus receives a physical address or network from the telephone setting information group registration unit based on a physical address or a network layer address accompanying the telephone setting request signal. A telephone setting information group corresponding to the layer address is acquired, and a NOTIFY message including the acquired telephone setting information group is returned to the multi-function telephone terminal;
The telephone setting execution unit of the multifunction telephone terminal sets the telephone setting information group that has been returned in the multifunction telephone terminal,
The re-registration Rokuyo demand signal transmitting unit of the multi-function telephone terminal, after which the telephone set information group with respect to the telephone set request signal is sent back, the associated physical address or network layer address, the dummy SIP sends a registration deletion request signal by rEGISTER message requesting the deletion of the registration status based on-URI, the subsequent startup, sends a re-registration Rokuyo determined signal rEGISTER message containing an extension is applicable,
The terminal re- registration execution unit of the private branch exchange apparatus deletes the registration state based on a dummy SIP-URI when the registration deletion request signal arrives, and the same multi-function telephone terminal transmits it at the subsequent startup. When the received re-registration request signal arrives, the communication method further shifts to a registration state in which a SIP message can be exchanged with the multi-function telephone terminal. A communication program for one or more multi-function telephone terminals equipped with a large number of operation parts corresponding to a large number of functions that can be changed and assigned with a fixed physical address, and a private branch exchange that manages the multi-function telephone terminal In
In the private branch exchange apparatus,
A communication setting information group registration function for registering a communication setting information group including a network layer address related to the multi-function telephone terminal;
When a setting information request signal for requesting provision of basic configuration information related to TCP / IP with the physical address is received from the multi-function telephone terminal at the time of initial activation of the multi-function telephone terminal, the communication setting & Devices corresponding function to return the communication setting information group obtained from the information group registration function to the multi-function telephone terminal,
An initial registration request signal corresponding to a REGISTER message including a dummy SIP-URI with the physical address or network layer address has arrived from the multi-function telephone terminal that has set the communication setting information group that has been returned to itself. A terminal initial registration execution function for shifting to a registration state based on the dummy SIP-URI, which can exchange a SIP message with the multi-function telephone terminal;
A telephone setting in which a telephone setting information group including an extension number related to the function as a telephone of the multi-function telephone terminal, including assignment of the function of the operation component, is registered in a format corresponding to the physical address or the network layer address. Information group registration function,
From the multi-function telephone terminal sets the previous SL communication setting information group to itself, if the request signal by SUBSCRIBE message corresponding to a telephone set request signal with the physical address or network layer address arrives, the physical address or network layer address The telephone setting information group corresponding to the physical address or the network layer address is acquired from the telephone setting information group registration function, and the NOTIFY message including the acquired telephone setting information group is returned to the multi-function telephone terminal. the corresponding function,
By a REGISTER message requesting deletion of the registration state based on the dummy SIP-URI accompanied by the physical address or network layer address from the multi-function telephone terminal that has set the telephone setting information group that has been returned to itself When a registration deletion request signal arrives, the registration state based on the dummy SIP-URI is deleted, and the REGISTER message including the extension number transmitted by the same multifunction telephone terminal at the subsequent startup corresponds When a re-registration request signal arrives, realize a terminal re- registration execution function that shifts again to a registration state in which a SIP message can be exchanged with the multi-function telephone terminal,
In the multi-function telephone terminal, the computer
Setting information and transmits the setting information request signal upon initial startup and request signal transmission function,
When the communication setting information group is returned in response to the setting information request signal, a communication setting execution function for setting the communication setting information group in the own multifunction telephone terminal;
An initial registration request signal transmission function for transmitting the initial registration request signal after setting by the communication setting execution function;
A telephone setting request signal transmission function for transmitting a telephone setting request signal after transmission of the initial registration request signal ;
When the telephone setting information group is returned in response to the telephone setting request signal, a telephone setting execution function for setting the telephone setting information group in the self-functional telephone terminal ;
After which the telephone set information group with respect to the telephone set request signal is sent back, the sends a registration deletion request signal, and subsequent transmitting a re-registration request signal to the startup again registered Rokuyo demand signal transmission function A communication program characterized by realizing the above.

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