JP5018644B2 - IP telephone network system and IP telephone identification information registration method - Google Patents

Description

  The present invention relates to a technology related to an IP telephone that can perform telephone communication using an IP network. In particular, the present invention relates to a technique for registering IP telephone identification information of an IP telephone apparatus in an IP telephone server. Note that the term “IP telephone apparatus” in this specification is to be interpreted in the broadest sense, and is a concept that includes all telephone apparatuses using the Internet protocol (Voice over Internet Protocol).

  The following Patent Document 1 discloses an IP telephone device. In order to perform telephone communication using an IP telephone apparatus, it is necessary to register the IP address of the IP telephone apparatus and IP telephone identification information (for example, SIP URI) in the IP telephone server. The user inputs the IP address of the IP telephone server by operating the operation keys of the IP telephone apparatus. Thereby, the IP telephone apparatus can transmit its own IP address and IP telephone identification information to the IP telephone server, and the IP telephone server can register the IP address and IP telephone identification information of the IP telephone apparatus.

International Publication No. 03/073714 Pamphlet

  As described above, in the conventional method, in order to register the IP address of the IP telephone device and the IP telephone identification information in the IP telephone server, the user inputs the IP address of the IP telephone server by operating the IP telephone device. It is necessary to perform work to do. The present specification provides a technique that does not require the user to perform such input work and can reduce the user's work load.

The present invention is an IP telephone network system comprising: a first network including a first server information storage device; and an IP telephone apparatus capable of communicating with devices constituting the first network. Broadcast means for broadcasting a first command including the IP address of the IP telephone device toward the first network, and receiving the IP address of the first server information storage device transmitted from the first server information storage device And a second command for transmitting the second command including the IP telephone identification information of the IP telephone apparatus, with the IP address of the first server information storage device received by the IP address receiving means as a destination. Command transmission means, and the first server information storage device IP address storage means for storing the IP address of the first IP telephone server, first command receiving means for receiving the first command broadcast from the IP telephone apparatus, and the first command received by the first command receiving means IP address transmitting means for transmitting the IP address of the first server information storage device with the IP address of the IP telephone device included in the first command as a destination, on the condition that the IP telephone is received, and the IP telephone A second command receiving means for receiving the second command transmitted from the apparatus; and the second command receiving means stored on the IP address storage means on condition that the second command is received by the second command receiving means. Using the IP address of the first IP telephone server as a destination, the first server information storage device By transmitting a third command that includes first combination information that is a combination of the IP address of the IP address and the IP telephone identification information of the IP telephone device included in the second command. Combination information registration means for registering with a telephone server, wherein the IP telephone apparatus further makes a call to another IP telephone apparatus after the first combination information is registered with the first IP telephone server. The predetermined command is transmitted to the other IP telephone apparatus via the first server information storage device and the first IP telephone server, so that the predetermined command for making a call is transmitted to the other IP telephone apparatus. A predetermined command transmission means for transmitting to one server information storage device, wherein the first server information storage device further has the first combination information as the first IP telephone service; When the predetermined command is received from the IP telephone apparatus after being registered with the server, the predetermined command is transmitted to the other IP telephone apparatus via the first IP telephone server. An IP telephone network system comprising predetermined command transfer means for transferring the predetermined command to the first IP telephone server.
One aspect of the technology disclosed in this specification is an IP telephone network system including a first network including a first server information storage device and an IP telephone apparatus capable of communicating with devices constituting the first network. is there. Note that the IP telephone apparatus may be one that performs telephone communication using only the IP network, or a general public network (PSTN (Public Switched Telephony Network) or ISDN (Integrated Services Digital Network)) and the IP network. Both may be used for telephone communication.

  The IP telephone apparatus has broadcast means, IP address reception means, and combination information registration means. The broadcast means broadcasts a first command including the IP address of the IP telephone device toward the first network. The IP address receiving means receives the IP address of the first IP telephone server transmitted from the first server information storage device. The combination information registration means uses the IP address of the first IP telephone server received by the IP address receiving means as the transmission destination, and includes combination information of the IP address of the IP telephone apparatus and the IP telephone identification information of the IP telephone apparatus. The combination information is registered in the first IP telephone server by transmitting two commands.

  The first server information storage device includes first device side storage means, first device side reception means, and first device side transmission means. The first device side storage means stores the IP address of the first IP telephone server. The first device side receiving means receives the first command broadcast from the IP telephone apparatus. The first device side transmission means stores the IP address of the IP telephone device included in the first command as a transmission destination on the condition that the first command is received by the first device side reception means. The IP address of the first IP telephone server stored in the means is transmitted.

  In the above IP telephone network system, when the IP telephone apparatus broadcasts the first command to the first network, the IP address of the first IP telephone server is transmitted from the first server information storage device to the IP telephone apparatus. The IP telephone device can acquire the IP address of the first IP telephone server, and registers its own IP address and IP telephone identification information in the first IP telephone server by transmitting the second command with the IP address as the transmission destination. can do. According to this technique, it is not necessary for the user to input the IP address of the first IP telephone server to the IP telephone apparatus. If the IP telephone apparatus adopts a configuration in which the first command is unicast to the first server information storage device, the user needs to input the IP address of the first server information storage device to the IP telephone apparatus. In the present technology, since the IP telephone apparatus broadcasts the first command, there is no need for the user to input the IP address of the first server information storage device to the IP telephone apparatus. A system with a low user workload has been realized.

  The IP telephone network system may further include a second network including a second server information storage device. In this case, the IP telephone apparatus may be able to wirelessly communicate with devices constituting the first network at the first location. The IP telephone apparatus may be capable of wireless communication with a device configuring the second network at the second location. The IP telephone apparatus may further include a first movement detection unit that detects that the IP telephone apparatus has moved from the first location to the second location. The broadcast means of the IP telephone apparatus broadcasts the first command toward the second network when the first movement detection means detects that the IP telephone apparatus has moved from the first location to the second location. Also good. The IP address receiving means of the IP telephone device may receive the IP address of the second IP telephone server transmitted from the second server information storage device. The combination information registration unit of the IP telephone device may transmit the second command using the IP address of the second IP telephone server received by the IP address receiving unit as a transmission destination.

  The second server information storage device may include second device side storage means, second device side reception means, and second device side transmission means. The second device side storage means stores the IP address of the second IP telephone server. The second IP telephone server may be the same as the first IP telephone server or may be different from the first IP telephone server. In the former case, the first device side storage means of the first server information storage device and the second device side storage means of the second server information storage device store the same IP address. The second device side receiving means receives the first command broadcast from the IP telephone apparatus. The second device side transmission means stores the IP address of the IP telephone device included in the first command as a transmission destination on the condition that the first command is received by the second device side reception means. The IP address of the second IP telephone server stored in the means is transmitted.

  In the above IP telephone network system, a user can carry an IP telephone device. As a result, there is a possibility that the IP telephone apparatus moves from the first location capable of wireless communication with the first network to the second location capable of wireless communication with the second network. When moving to a different network, the IP address of the IP telephone device may change. In this case, it is necessary to register the IP address after the change of the IP telephone device in the IP telephone server. In the above system, when the IP telephone apparatus moves from the first location to the second location, the IP address of the IP telephone apparatus and the IP telephone identification information can be registered in the second IP telephone server. At this time, it is not necessary for the user to input the IP address of the second IP telephone server to the IP telephone apparatus, and the workload of the user is small.

  Note that the first movement detection means of the IP telephone device may be configured to detect that the IP telephone device has moved from the second location to the first location. In this case, the broadcast means of the IP telephone apparatus sends a first command to the first network when the first movement detecting means detects that the IP telephone apparatus has moved from the second location to the first location. You may broadcast. According to this configuration, when the IP telephone apparatus moves from the second location to the first location, the IP address of the IP telephone apparatus and the IP telephone identification information can be registered in the first IP telephone server. At this time, it is not necessary for the user to input the IP address of the first IP telephone server to the IP telephone apparatus, and the workload of the user is small.

  The first network may include a first access point. The second network may include a second access point. In this case, the IP telephone apparatus may be capable of wireless communication with a device configuring the first network via the first access point. Further, the IP telephone apparatus may be capable of wireless communication with a device constituting the second network via the second access point. The first movement detection means of the IP telephone apparatus may detect that the IP telephone apparatus has moved from the first location to the second location by monitoring which access point can communicate with. According to this configuration, it is possible to reliably detect that the IP telephone apparatus has moved from the first location to the second location.

  The first IP telephone server and the second IP telephone server may be configured separately. Each of the first IP telephone server and the second IP telephone server may transmit at least the IP telephone identification information included in the combination information to the other IP telephone server on condition that the combination information transmitted from the IP telephone device is registered. Good. The above-mentioned "may be transmitted on condition of registration of combination information" is not only transmitted after registering the combination information, but also registered (received in a predetermined storage area) after receiving the combination information. This is a concept including transmission before the storage. Each of the first IP phone server and the second IP phone server receives the IP phone identification information transmitted from the other IP phone server, and when the IP phone identification information is registered in itself, the IP phone Combination information including identification information may be deleted.

  According to the above configuration, for example, when the IP telephone apparatus moves from the first location to the second location, the IP address of the IP telephone apparatus and the IP telephone identification information are registered in the second IP telephone server, and the information is Deleted from the first IP telephone server. For example, when the IP telephone apparatus moves from the second location to the first location, the IP address of the IP telephone apparatus and the IP telephone identification information are registered in the first IP telephone server, and these information are stored in the second IP telephone server. Deleted from. It is possible to prevent the same IP telephone device from being continuously registered in a plurality of IP telephone servers.

  The first device side storage means of the first server information storage device may store the IP addresses of the plurality of first IP telephone servers. The first server information storage device may further include information acquisition means for acquiring information related to the number of combination information registered in each of the plurality of first IP telephone servers. The first device side transmission means of the first server information storage device may transmit the IP address of the first IP telephone server with the smallest number of registered combination information. According to this configuration, the IP address and IP phone identification information of the IP telephone device can be registered in the first IP telephone server with the smallest number of registrations (that is, the first IP telephone server with the smallest load).

  The first network may include a plurality of first access points. The IP telephone apparatus may be capable of wireless communication with a device constituting the first network via any one of the first access points. The IP telephone apparatus may further include second movement detection means for detecting that the first access point capable of wireless communication has changed due to movement of the IP telephone apparatus. The broadcast unit of the IP telephone apparatus may broadcast the first command when the second movement detection unit detects that the first access point capable of wireless communication has changed.

  In the above configuration, there is a possibility that the access point for the IP telephone apparatus to perform wireless communication changes when the user carries the IP telephone apparatus. When the access point for wireless communication of the IP telephone apparatus changes, the IP address of the IP telephone apparatus may change. In this case, it is necessary to register the IP address after the change of the IP telephone device in the IP telephone server. In the above system, the IP address of the IP telephone device and the IP telephone identification information can be registered in the first IP telephone server when the access point for the wireless communication of the IP telephone device changes. At this time, it is not necessary for the user to input the IP address of the first IP telephone server to the IP telephone apparatus, and the workload of the user is small.

  A single IP telephone apparatus for constructing the above IP telephone network system is also a new and useful technique. This IP telephone apparatus can communicate with devices constituting a network including a server information storage device that stores an IP address of an IP telephone server. The IP telephone apparatus includes the broadcast unit, the IP address receiving unit, and the combination information registration unit. By using this IP telephone apparatus, it is possible to construct an IP telephone network system with a low user workload.

In the IP telephone network system including the network including the server information storage device that stores the IP address of the IP telephone server, and the IP telephone apparatus that can communicate with the devices constituting the network, It can also be expressed as a method of registering the IP telephone identification information of the telephone device in the IP telephone server. This method includes the following steps.
(1) A broadcast process in which the IP telephone device broadcasts a first command including the IP address of the IP telephone device toward the network.
(2) A first command receiving step in which the server information storage device receives the first command broadcast from the IP telephone apparatus.
(3) On the condition that the server information storage device receives the first command in the first command receiving step, the IP address of the IP telephone server is set with the IP address of the IP telephone device included in the first command as the transmission destination. IP address transmission step of transmitting an address.
(4) An IP address receiving step in which the IP telephone apparatus receives the IP address of the IP telephone server transmitted from the server information storage device.
(5) The IP telephone apparatus includes combination information of the IP address of the IP telephone apparatus and the IP telephone identification information of the IP telephone apparatus with the IP address of the IP telephone server received in the IP address receiving step as a transmission destination. A combination information registration step of registering the combination information in the IP telephone server by transmitting the second command.
If this method is used, when the IP telephone identification information of the IP telephone apparatus is registered in the IP telephone server, the user does not need to input the IP address of the IP telephone server to the IP telephone apparatus.

  In the above IP telephone network system, the IP telephone apparatus transmits (registers) its own IP address and IP telephone identification information to the IP telephone server. However, in order for the IP telephone apparatus to perform telephone communication, it is necessary to register the IP telephone identification information of the IP telephone apparatus in the IP telephone server, but it is not always necessary to register the IP address of the IP telephone apparatus in the IP telephone server. . That is, instead of the IP address of the IP telephone device, the IP address of another device may be registered in the IP telephone server. In this case, the IP telephone apparatus can perform telephone communication by relaying various communications between the IP telephone apparatus and the IP telephone server by the other devices. In order to construct such a system, the following technique may be employed.

  That is, one technique disclosed in this specification is an IP telephone network system including a network including a server information storage device and an IP telephone apparatus capable of communicating with the devices constituting the network. The IP telephone apparatus has broadcast means, IP address reception means, and second command transmission means. The broadcast means broadcasts a first command including the IP address of the IP telephone device toward the network. The IP address receiving means receives the IP address of the server information storage device transmitted from the server information storage device. The second command transmission means transmits the second command including the IP telephone identification information of the IP telephone apparatus, with the IP address of the server information storage device received by the IP address reception means as the transmission destination.

  The server information storage device includes IP address storage means, first command reception means, IP address transmission means, second command reception means, and combination information registration means. The IP address storage means stores the IP address of the IP telephone server. The first command receiving means receives the first command broadcast from the IP telephone apparatus. The IP address transmitting means, on the condition that the first command is received by the first command receiving means, uses the IP address of the IP telephone device included in the first command as the destination, and the IP address of the server information storage device Send. The second command receiving means receives the second command transmitted from the IP telephone device. The combination information registration means uses the IP address of the IP telephone server stored in the IP address storage means as the transmission destination on the condition that the second command is received by the second command reception means. The combination information is registered in the IP telephone server by transmitting a third command including combination information of the IP address and the IP telephone identification information of the IP telephone apparatus included in the second command.

  In the above IP telephone network system, when the IP telephone apparatus broadcasts the first command to the network, the IP address of the server information storage device is transmitted from the server information storage device to the IP telephone apparatus. The IP telephone apparatus can acquire the IP address of the server information storage device, and transmits the second command using the IP address as a transmission destination. As a result, the server information storage device can register its own IP address and IP telephone identification information of the IP telephone apparatus in the IP telephone server. In this configuration, the server information storage device relays various communications (for example, voice data) between the IP telephone apparatus and the IP telephone server. According to this technique, it is not necessary for the user to input the IP address of the IP telephone server or server information storage device to the IP telephone apparatus. A system with a low user workload has been realized.

In the IP telephone network system including the network including the server information storage device that stores the IP address of the IP telephone server, and the IP telephone apparatus that can communicate with the devices constituting the network, It can also be expressed as a method of registering the IP telephone identification information of the telephone device in the IP telephone server. This method includes the following steps.
(1) A broadcast process in which the IP telephone device broadcasts a first command including the IP address of the IP telephone device toward the network.
(2) A first command receiving step in which the server information storage device receives the first command broadcast from the IP telephone apparatus.
(3) On the condition that the server information storage device receives the first command in the first command receiving step, the server information storage device uses the IP address of the IP telephone device included in the first command as a transmission destination. IP address transmission step of transmitting the IP address of
(4) An IP address receiving step in which the IP telephone apparatus receives the IP address of the server information storage device transmitted from the server information storage device.
(5) A second command transmission step in which the IP telephone device transmits a second command including the IP telephone identification information of the IP telephone device using the IP address of the server information storage device received in the IP address reception step as a transmission destination. .
(6) A second command receiving step in which the server information storage device receives the second command transmitted from the IP telephone apparatus.
(7) On the condition that the server information storage device receives the second command in the second command reception step, the IP address of the server information storage device and the second command with the IP address of the IP telephone server as the transmission destination A combination information registration step of registering the combination information in the IP telephone server by transmitting a third command including combination information with the IP telephone identification information of the IP telephone apparatus included in the IP telephone server.
When this method is used, when the IP telephone identification information of the IP telephone apparatus is registered in the IP telephone server, the user does not need to input the IP address of the IP telephone server or the server information storage device to the IP telephone apparatus.

Here, some of the features of the techniques described in the following embodiments are summarized.
(Mode 1) The network may include a router. The router may be connected to the first communication line and the second communication line. The first communication line may be connected to another network. The second communication line may be connected to at least the server information storage device. The second communication line may be connected to the access point. One network may be configured by a router and each device connected to the second communication line. In this case, when the first communication line is the upstream side and the second communication line is the downstream side, one network is configured by the router and each device existing on the downstream side.
(Mode 2) The router may prohibit the transmission from the downstream side to the upstream side. In this case, one network can also be defined as “range in which broadcast is transmitted”.
(Mode 3) The IP telephone apparatus may perform telephone communication using SIP (Session Initiation Protocol). Other protocols may be used. For example, “H.323”, “MGCP (Media Gateway Control Protocol)”, “H.248 / MEGACO (Media Gateway Control)”, or the like may be used.

(First embodiment)
Embodiments will be described with reference to the drawings. FIG. 1 shows an IP telephone network system 2 of the present embodiment.
(Overall system configuration)
The IP telephone network system 2 includes a plurality of networks 10, 50, a plurality of SIP servers 20, 60, 70, the Internet 90, a plurality of IP telephone apparatuses 100, 150, and the like. The plurality of networks 10 and 50 are connected to a communication line 82. The plurality of SIP servers 20, 60, 70 are connected to the communication line 82. The Internet 90 is also connected to the communication line 82. An external network 92 is connected to the Internet 90. Each IP telephone apparatus 100, 150 can communicate with each network 10, 50 wirelessly. Each IP telephone apparatus 100, 150 is a portable telephone apparatus (for example, a mobile telephone apparatus). For this reason, the user can move with the IP telephone devices 100 and 150.

(Network configuration)
The network 10 includes a router 12, a management server 14, and a plurality of access points 16 and 18. The router 12 is connected to the communication line 82. The router 12 is also connected to the communication line 84. The management server 14 and the plurality of access points 16 and 18 are connected to a communication line 84. The management server 14 stores the IP address of the SIP server 20. The access points 16 and 18 are used for the IP telephone apparatuses 100 and 150 to wirelessly communicate with the network 10. When the communication line 82 is the upstream side and the communication line 84 is the downstream side, the network 10 is configured by the router 12 and the devices 14, 16, and 18 existing on the downstream side.

  The network 50 includes a router 52, a management server 54, and an access point 56. The router 52 is connected to the communication line 82. The router 52 is also connected to the communication line 86. The management server 54 and the access point 56 are connected to a communication line 86. The management server 54 stores the IP addresses of the two SIP servers 60 and 70. The access point 56 is used for the IP telephone apparatuses 100 and 150 to wirelessly communicate with devices constituting the network 50. When the communication line 82 is the upstream side and the communication line 86 is the downstream side, the network 50 is configured by the router 52 and the devices 54 and 56 existing on the downstream side.

  Although not shown, the system 2 includes a DHCP (Dynamic Host Configuration Protocol) server. The IP address of each device 14, 16, 18, 20, 54, 56, 60, 70, 100, 150, etc. constituting the system 2 is automatically assigned by the DHCP server. In the present embodiment, the IP address of each IP telephone apparatus 100, 150 changes when the access point capable of wireless communication changes.

(Configuration of SIP server)
FIG. 2 shows the configuration of the SIP server 20. The SIP server 20 includes a CPU 200, a ROM 210, a RAM 220, a network interface 240, and the like. The CPU 200 executes various processes according to the programs 212 to 218 stored in the ROM 210. The contents of the process executed by the CPU 200 will be described in detail later. The ROM 210 stores various programs 212 to 218 executed by the CPU 200. Next, the contents of the programs 212 to 218 will be briefly described.

  The registration processing program 212 is a program for executing processing for storing (registering) the combination information of the IP address and SIP URI of the IP telephone apparatuses 100 and 150 in response to the REGISTER command from the IP telephone apparatuses 100 and 150. . In the following, for example, when the IP address and SIP URI of the IP telephone apparatus 100 are registered in the SIP server 20, it may be simply described as “IP telephone apparatus 100 is registered in the SIP server 20”. .

  The telephone relay program 214 is a program for relaying telephone communications performed by the IP telephone apparatuses 100 and 150. For example, when the IP telephone apparatus 100 and the IP telephone apparatus 150 are registered in the SIP server 20 and a call is made from the IP telephone apparatus 100 to the IP telephone apparatus 150, the IP telephone apparatus 100 transmits an INVITE command to the SIP server 20. To do. The SIP server 20 transfers the INVITE command to the IP telephone device 150. Thereby, the IP telephone apparatus 150 executes a call request notification (for example, ring sound output, vibration, light output, etc.). When a call start operation (for example, operation of a hook key) is performed in IP telephone apparatus 150, a communication session for call RTP (Real-time Transport Protocol) between IP telephone apparatus 100 and IP telephone apparatus 150 is established. In this case, the voice data from IP telephone apparatus 100 is transmitted to IP telephone apparatus 150 via SIP server 20. Also, voice data from the IP telephone apparatus 150 is transmitted to the IP telephone apparatus 100 via the SIP server 20. A program 214 is prepared to execute various processes to be executed by the SIP server 20 in order to perform telephone communication.

  The deletion processing program 216 is a program for deleting combination information registered in itself in response to a command from another SIP server. The program 218 includes various programs other than the programs 212 to 216 described above.

  The RAM 220 has various storage areas 222, 230, and 236. The registration information storage area 222 can store combination information of an IP telephone device (for example, the IP telephone device 100). When the combination information of the IP telephone apparatus 100 is stored in the registration information storage area 222, the IP telephone apparatus 100 is registered in the SIP server 20. The registration information storage area 222 can store a plurality of combination information. That is, a plurality of IP telephone devices can be registered in the SIP server 20. The SIP server information storage area 230 stores the IP addresses 232 and 234 of the other SIP servers 60 and 70, respectively. The storage area 236 can store information other than information to be stored in the storage areas 222 and 230. The storage area 236 can store, for example, the IP address of the SIP server 20 assigned by the DHCP server.

  The network interface 240 is connected to the communication line 82. The SIP server 20 can communicate with devices constituting the networks 10 and 50 via the network interface 240. The SIP server 20 can also communicate with other SIP servers 60 and 70 and the Internet 90 via the network interface 240.

  The other SIP servers 60 and 70 have the same configuration as the SIP server 20. However, it differs from the SIP server 20 in the following points. That is, the SIP server information storage area in the RAM of the SIP server 60 stores the IP addresses of the SIP servers 20 and 70. The SIP server information storage area in the RAM of the SIP server 70 stores the IP addresses of the SIP servers 20 and 60.

(Management server configuration)
FIG. 3 shows the configuration of the management server 14. The management server 14 includes a CPU 250, a ROM 260, a RAM 270, a network interface 280, a display unit 282, an operation unit 284, and the like. The CPU 250 executes various processes according to the programs 262 and 264 stored in the ROM 260. The contents of the processing executed by the CPU 250 will be described in detail later. The ROM 260 stores various programs 262 and 264 executed by the CPU 250. The broadcast corresponding program 262 is a program for supporting broadcasts from the IP telephone apparatuses 100 and 150. The program 264 includes various programs other than the program 262 described above.

  The RAM 270 stores the IP address 272 of the SIP server 20. The administrator of the system 2 can input the IP address of the SIP server 20 to the management server 14 by operating the operation unit 284 of the management server 14. As a result, the IP address 272 of the SIP server 20 is stored in the RAM 270. The storage area 274 can store various information other than the IP address 272 of the SIP server 20. For example, the storage area 274 stores the IP address of the management server 14 assigned by the DHCP server.

  The network interface 280 is connected to the communication line 84. The management server 14 can communicate with the router 12 and the access points 16 and 18 (that is, the IP telephone devices 100 and 150) via the network interface 280. The display unit 282 can display various information. The operation unit 284 is configured by a keyboard and a mouse.

  The management server 54 configuring the network 50 has the same configuration as the management server 14. However, it differs from the management server 14 in the following points. That is, the RAM of the management server 54 does not store the IP address of the SIP server 20 but stores the IP address of the SIP server 60 and the IP address of the SIP server 70. That is, the IP address of each of the SIP servers 60 and 70 is input to the management server 54 by the administrator of the system 2, and these IP addresses are stored in the RAM of the management server 54. The network interface of the management server 54 is connected to the communication line 86.

(Configuration of IP telephone device)
FIG. 4 shows the configuration of IP telephone apparatus 100. The IP telephone apparatus 100 includes a CPU 110, a ROM 112, a RAM 120, a wireless communication interface 130, a display unit 132, an operation unit 134, and the like. CPU110 performs various processes according to each program 114-118 memorize | stored in ROM112. Details of processing executed by the CPU 110 will be described later in detail. The ROM 112 stores various programs 114 to 118 executed by the CPU 110. The access point monitoring program 114 is a program for monitoring changes in the access points 16, 18, and 56 that can perform wireless communication. The telephone communication program 116 is a program for performing telephone communication according to SIP. The program 118 includes various programs other than the programs 114 and 116 described above.

  The RAM 120 has various storage areas 122 to 128. The SIP URI storage area 122 stores the SIP URI set in the IP telephone apparatus 100. The SIP URI of IP telephone apparatus 100 may be set in advance at the manufacturing stage of IP telephone apparatus 100. Further, the SIP URI of IP telephone apparatus 100 may be arbitrarily set by the user. The access point information storage area 124 stores information on access points with which the IP telephone apparatus 100 can perform wireless communication. The access point information storage area 124 stores, for example, the IP address of the access point. For example, when the IP telephone apparatus 100 is capable of wireless communication with the access point 16, the access point information storage area 124 stores the IP address of the access point 16. For example, when the IP telephone apparatus 100 moves and cannot communicate wirelessly with the access point 16 but becomes wirelessly communicable with the access point 18, the access point information storage area 124 stores the IP address of the access point 18. The SIP server information storage area 126 stores information related to the SIP server in which the IP telephone device 100 is registered. The SIP server information storage area 126 stores, for example, the IP address of the SIP server. For example, when the IP telephone device 100 is registered in the SIP server 20, the SIP server information storage area 126 stores the IP address of the SIP server 20. For example, when the IP telephone apparatus 100 moves and the IP telephone apparatus 100 is registered in the SIP server 60, the SIP server information storage area 126 stores the IP address of the SIP server 60. The storage area 128 can store information other than information to be stored in the storage areas 122 to 126. The storage area 128 stores, for example, the IP address of the IP telephone device 100 assigned by the DHCP server.

  The wireless communication interface 130 is an interface for performing wireless communication with an access point. The display unit 132 can display various information. The operation unit 134 includes a plurality of keys (for example, ten keys).

  Other IP telephone apparatus 150 has the same configuration as IP telephone apparatus 100. However, it differs from IP telephone apparatus 100 in the following points. That is, the SIP URI storage area of the RAM of the IP telephone device 150 stores a SIP URI (a SIP URI different from the IP telephone device 100) set in the IP telephone device 150.

(Processing executed by the SIP server)
Next, the contents of processing executed by the SIP server 20 will be described. The other SIP servers 60 and 70 execute the same processing as the SIP server 20. FIG. 5 shows a flowchart of processing executed by the SIP server 20. The flowchart of FIG. 5 is executed by the CPU 200 (see FIG. 2) of the SIP server 20.

  The CPU 200 monitors the reception of the REGISTER command (S10). As will be described in detail later, IP telephone apparatuses 100 and 150 can transmit a REGISTER command to SIP server 20. The REGISTER command includes combination information of the IP address of the transmission source IP telephone device and SIP URI. If YES in S10, the CPU 200 stores the combination information included in the REGISTER command received in S10 in the registration information storage area 222 (see FIG. 2) (S12). Thereby, the combination information is registered in the SIP server 20. Next, the CPU 200 transmits the combination information included in the REGISTER command received in S10 to the other SIP servers 60 and 70 (S14). The transmission process of S14 is executed by unicast. The CPU 200 uses the IP address stored in the SIP server information storage area 230 (see FIG. 2) (that is, the IP address of the SIP servers 60 and 70) as the transmission destination, and uses the combination information included in the REGISTER command received in S10. Unicast.

  The CPU 200 monitors the reception of combination information from other SIP servers 60 and 70 (S16). When the process of S14 is executed in the SIP server 60 or 70, the SIP server 20 receives the combination information. In this case, YES is determined in S16. The CPU 200 determines whether or not the SIP URI included in the combination information received in S16 is stored in the registration information storage area 222 (S18). The reason why the determination of S18 is performed in units of SIPURI is that the IP address may change when the IP telephone apparatus moves. If YES in S18, the CPU 200 deletes the combination information having the SIP URI included in the combination information received in S16 from the registered information storage area 222 (S20). On the other hand, if NO in S18, S20 is skipped.

  As will be described in detail later, the management server 14 can transmit a combination information number inquiry command to the SIP server 20. The CPU 200 monitors the reception of the combination information number inquiry command from the management server 14 (S22). In the case of YES here, the CPU 200 transmits the number of combination information stored in the registration information storage area 222 to the management server 14 (S24). The management server 54 transmits a combination information number inquiry command not to the SIP server 20 but to the SIP servers 60 and 70. Upon receiving the combination information number inquiry command, the CPUs of the SIP servers 60 and 70 transmit the combination information number to the management server 54.

(Management server processing)
Next, the contents of the process executed by the management server 14 will be described. The other management servers 54 also execute the same processing as the management server 14. FIG. 6 shows a flowchart of processing executed by the management server 14. The flowchart in FIG. 6 is executed by the CPU 250 (see FIG. 3) of the management server 14.

  As will be described in detail later, IP telephone apparatuses 100 and 150 can broadcast an IP address inquiry command. The IP address inquiry command includes the IP address of the IP telephone device (100 or 150) that is the source of the command. The CPU 250 monitors reception of an IP address inquiry command from the IP telephone device (S40). In the case of YES here, the CPU 250 transmits a combination information number inquiry command with the IP address 272 of the SIP server 20 stored in the RAM 270 as the transmission destination (S42). As a result, the SIP server 20 executes the process of S24 in FIG. The management server 14 receives the number of combination information from the SIP server 20 (S44).

  Since the management server 14 stores only the IP address 272 of one SIP server 20, the management server 14 transmits a combination information number inquiry command to only one SIP server 20. However, the management server 54 stores the IP addresses of the two SIP servers 60 and 70. For this reason, when the management server 54 executes the process of S42, a combination information number inquiry command is transmitted to each of the two SIP servers 60 and 70. As a result, the management server 54 receives the number of combination information from the SIP servers 60 and 70.

  Next, the CPU 250 identifies the SIP server with the smallest number of combination information received in S44 (S46). As described above, the management server 14 transmits a combination information number inquiry command to only one SIP server 20. For this purpose, the CPU 250 identifies the SIP server 20 in S46. Note that when only the IP address 272 of one SIP server 20 is stored in the RAM 270 as in the management server 14, the processing of S42 to S46 is skipped because the SIP server specified in S46 is determined. Also good. On the other hand, the management server 54 transmits a combination information number inquiry command to the plurality of SIP servers 60 and 70. In this case, the management server 54 specifies the SIP server (60 or 70) having the smallest number of combination information in S46.

  Subsequently, the CPU 250 sets the IP address included in the IP address inquiry command received in S40 as the transmission destination (that is, sets the IP telephone apparatus that transmitted the IP address inquiry command as the transmission destination), and the SIP server specified in S46. An IP address is transmitted (S50). In the case of the management server 14, the IP address of the SIP server 20 is transmitted. In the case of the management server 54, the IP address of one of the SIP servers 60 and 70 (the IP address of the SIP server with the smaller number of combination information) is transmitted.

(IP phone device processing)
Next, the contents of processing executed by IP telephone apparatus 100 will be described. Other IP telephone apparatuses 150 also execute the same processing as IP telephone apparatus 100. FIG. 7 shows a flowchart of processing executed by IP telephone apparatus 100. The flowchart of FIG. 7 is executed by CPU 110 (see FIG. 4) of IP telephone apparatus 100.

  The CPU 110 transmits a predetermined signal to the surroundings of the CPU 110 by wireless communication (S60). The process of S60 is performed periodically. The predetermined signal is a signal for searching for an access point. When the access point (for example, the access point 16) receives the predetermined signal, it returns its own information (IP address or the like) to the IP telephone apparatus 100. Thereby, IP telephone apparatus 100 receives a reply from the access point (that is, the IP address of the access point).

  CPU 110 determines whether or not the IP address included in the reply from the access point is stored in access point information storage area 124 (see FIG. 4) (S62). For example, when the IP telephone apparatus 100 continues to exist in a location where wireless communication with the access point 16 is possible and the process of S60 is periodically executed during that time, only a reply from the same access point 16 is received. become. In this case, NO is determined in S62. Further, for example, when the IP telephone apparatus 150 moves from a location capable of wireless communication with the access point 16 to a location capable of wireless communication with the access point 18 as indicated by an arrow D1 in FIG. In a state where the IP address of the access point 16 is stored in the point information storage area, a reply from the access point 18 different from that is received. In this case, YES is determined in S62. Similarly, for example, as shown by an arrow D2 in FIG. 1, when the IP telephone apparatus 150 moves from a location capable of wireless communication with the access point 16 to a location capable of wireless communication with the access point 56, the IP telephone apparatus 150 In a state where the IP address of the access point 16 is stored in the access point information storage area, a reply from the different access point 56 is received. Also in this case, YES is determined in S62.

  If YES in S62, the CPU 110 broadcasts an IP address inquiry command (S64). That is, the CPU 110 transmits an IP address inquiry command that does not specify a transmission destination. The IP address inquiry command includes the IP address of the IP telephone apparatus (for example, IP telephone apparatus 100) that is the transmission source of the command. For example, when the IP telephone apparatus 150 moves from a location that can wirelessly communicate with the access point 16 to a location that can wirelessly communicate with the access point 18, the IP address inquiry command broadcast in S64 is transmitted via the access point 18 through the communication line. 84. Thereby, the router 12 and the management server 14 (that is, each device constituting the network 10) connected to the communication line 84 receive the IP address inquiry command. The router 12 does not transmit the IP address inquiry command received via the communication line 84 to the communication line 82. That is, the router 12 does not transmit the broadcast from the downstream side to the upstream side. For this reason, the IP address inquiry command is transmitted only to each device 12, 14, etc. constituting the network 10.

  The following processing will be described on the assumption that S64 is executed by IP telephone apparatus 100 and the IP address inquiry command is received by management server 14. In this case, the management server 14 determines YES in S <b> 40 of FIG. 6, executes S <b> 50, and transmits the IP address of the SIP server 20 to the IP telephone device 100. As a result, the IP telephone device 100 receives the IP address of the SIP server 20 (S66). In this case, the CPU 110 transmits a REGISTER command including combination information of the IP address of the IP telephone device 100 and SIP URI, with the IP address of the SIP server 20 received in S66 as the transmission destination (S68). As a result, the SIP server 20 determines YES in S10 of FIG. 5 and registers the combination information of the IP telephone device 100.

  Next, the CPU 110 updates the access point information storage area 124 (see FIG. 4) and the SIP server information storage area 126 (see FIG. 4) (S70). That is, the CPU 110 clears the stored contents of the access point information storage area 124 and stores the IP address of a new access point (that is, a different access point in S62) in the access point information storage area 124. In addition, the CPU 110 clears the stored contents of the SIP server information storage area 126 and causes the SIP server information storage area 126 to store the IP address of the SIP server received in S66.

  Next, how IP telephone apparatus 100 performs telephone communication with another IP telephone apparatus (for example, IP telephone apparatus 150) will be briefly described. Here, a case where IP telephone apparatus 100 is registered in SIP server 20 and IP telephone apparatus 150 is registered in SIP server 60 will be described as an example. When making a call from IP telephone apparatus 100 to IP telephone apparatus 150, IP telephone apparatus 100 transmits an INVITE command to SIP server 20. The INVITE command includes the SIP URI of the IP telephone apparatus 100 that is the transmission source and the SIP URI of the IP telephone apparatus 150 that is the transmission destination. The SIP server 20 is linked to the SIP servers 60 and 70. That is, each SIP server 20, 60, 70 can know which IP telephone device is registered in another SIP server. In this example, the SIP server 20 can know that the IP telephone device 150 is registered in the SIP server 60. The SIP server 20 transmits an INVITE command to the SIP server 60. The SIP server 60 transmits an INVITE command to the IP telephone device 150. Note that the INVITE command can also be referred to as a call request command.

  When receiving the INVITE command, IP telephone apparatus 150 executes a call request notification. The user can execute a call start operation on the IP telephone device 150. In this case, IP telephone apparatus 150 transmits 200 OK to SIP server 60. The SIP server 60 transfers 200 OK to the SIP server 20. The SIP server 20 transfers 200 OK to the IP telephone device 100. Upon receiving 200 OK, IP telephone apparatus 100 transmits ACK to SIP server 20. The SIP server 20 transfers the ACK to the SIP server 60. The SIP server 60 transfers the ACK to the IP telephone device 150. Thereby, RTP is established between IP telephone apparatus 100 and IP telephone apparatus 150, and voice data can be communicated. The above 200 OK can be rephrased as the first predetermined signal. In addition, ACK can be rephrased as a second predetermined signal. Voice data transmitted from IP telephone apparatus 100 is transmitted to IP telephone apparatus 150 via SIP servers 20 and 60. The voice data transmitted from IP telephone apparatus 150 is transmitted to IP telephone apparatus 100 via SIP servers 60 and 20.

  The IP telephone apparatus 100 is externally connected on the condition that the SIP server (for example, the SIP server 20) that registers the IP telephone apparatus 100 is linked to a SIP server that exists in the external network 92 (see FIG. 1). It is also possible to perform telephone communication with an IP telephone apparatus existing in the network 92.

  The IP telephone network system 2 of the present embodiment has been described in detail. In this system 2, for example, when the IP telephone apparatus 100 broadcasts an IP address inquiry command to the network 10, the IP address of the SIP server 20 is transmitted from the management server 14 to the IP telephone apparatus 100. The IP telephone apparatus 100 can acquire the IP address of the SIP server 20, and can register its own IP address and SIP URI in the SIP server 20 by transmitting a REGISTER command with the IP address as a transmission destination. The user does not need to input the IP address of the SIP server 20 to the IP telephone apparatus 100 (there is no need to input the IP address of the management server 14). A system 2 with low user workload is realized.

  Since the IP telephone apparatuses 100 and 150 can perform wireless communication, the user can carry the IP telephone apparatuses 100 and 150. For example, when the IP telephone apparatus 100 moves from a location that can wirelessly communicate with the network 10 to a location that can wirelessly communicate with the network 50, the IP address of the IP telephone apparatus 100 changes. In this embodiment, when the IP address changes in the IP telephone device 100, the changed IP address and SIP URI can be registered in the SIP server (60 or 70) corresponding to the destination network 50. . At this time, it is not necessary for the user to input the IP address of the SIP server (60 or 70) to the IP telephone apparatus 100, and the workload of the user is small.

  In the system 2 according to the present embodiment, when new combination information is registered in the SIP server (for example, the SIP server 20), the combination information is transmitted to other SIP servers (for example, the SIP servers 60 and 70). That is, the SIP server can know that the IP telephone device registered in itself is newly registered in another SIP server. In this case, the SIP server deletes the combination information of the IP telephone device registered in itself. It is possible to prevent the same IP telephone apparatus from being continuously registered in a plurality of IP telephone servers.

  In addition, when the management server 54 receives the IP address inquiry command from the IP telephone devices 100 and 150, the management server 54 acquires the number of combination information registered in each of the SIP servers 60 and 70. The management server 54 transmits the IP address of the SIP server having a small number of combination information to the IP telephone devices 100 and 150. As a result, IP telephone apparatuses 100 and 150 are newly registered in the SIP server with a small number of registered combination information. The load on the SIP servers 60 and 70 can be distributed.

(Second embodiment)
Differences from the first embodiment will be described. In the first embodiment, the IP telephone devices 100 and 150 transmit a REGISTER command to the SIP servers 20, 60 and 70. In the present embodiment, the management servers 14 and 54 transmit a REGISTER command to the SIP servers 20, 60 and 70 instead of the IP telephone devices 100 and 150. The processes executed by the management servers 14 and 54 and the IP telephone devices 100 and 150 are different from those in the first embodiment. These processes will be described in detail below.

(Management server processing)
FIG. 8 shows a flowchart of processing executed by the management server 14 of this embodiment. The management server 54 performs the same process as the management server 14. The CPU 250 of the management server 14 monitors the reception of the IP address inquiry command from the IP telephone devices 100 and 150 (S90). This process is the same as in the first embodiment (see S40 in FIG. 6). The following processing will be described assuming that an IP address inquiry command from IP telephone apparatus 100 has been received.

  In the case of YES in S90, the CPU 250 transmits the IP address of itself (management server 14) to the IP telephone apparatus 100 instead of the IP address of the SIP server 20. In this case, as will be described in detail later, IP telephone apparatus 100 transmits a REGISTER command to management server 14. This REGISTER command includes combination information of the IP address of the IP telephone apparatus 100 and SIP URI. The management server 14 receives the REGISTER command from the IP telephone device 100 (S94). Since S96 to S100 executed following this processing are the same as S42 to S46 of FIG. 6, detailed description thereof is omitted.

  Subsequently, the CPU 250 transmits a REGISTER command to the SIP server specified in S100 (in the case of the management server 14, the SIP server 20 is specified in S100) (S102). This REGISTER command includes combination information of the IP address of the management server 14 and the SIP URI of the IP telephone device 100. As a result, the SIP server 20 determines YES in S10 of FIG. 5, and registers the combination information of the IP address of the management server 14 and the SIP URI of the IP telephone device 100. The management server 14 stores the combination information of the IP address of the SIP server 20 that is the transmission destination of the REGISTER command in S102 and the SIP URI of the IP telephone device 100 in the storage area 274 (see FIG. 3). This information is used when performing telephone communication to be described later.

(IP phone device processing)
FIG. 9 shows a flowchart of processing executed by the IP telephone apparatus 100 of this embodiment. IP telephone apparatus 150 executes processing in the same manner as IP telephone apparatus 100. Since S120 to S124 in FIG. 9 are the same as S60 to S64 in FIG. The following processing will be described on the assumption that the IP telephone apparatus 100 broadcasts an IP address inquiry command to the network 10 in S124.

  When S124 is executed, the management server 14 transmits its own IP address to the IP telephone apparatus 100 (see S92 in FIG. 8). The IP telephone device 100 receives the IP address of the management server 14 (S126). Next, the CPU 110 of the IP telephone apparatus 100 transmits a REGISTER command using the IP address received in S126 as a transmission destination (that is, using the management server 14 as a transmission destination) (S128). This REGISTER command includes combination information of the IP address of the IP telephone apparatus 100 and SIP URI. As a result, the management server 14 transmits a REGISTER command including combination information of its own IP address and SIP URI of the IP telephone device 100 to the SIP server 20 (see S102 in FIG. 8). Thereby, the SIP server 20 registers the combination information of the IP address of the management server 14 and the SIP URI of the IP telephone device 100.

  Next, the CPU 110 updates the access point information storage area 124 (see FIG. 4) and the SIP server information storage area 126 (see FIG. 4) (S130). The point of updating the stored contents of the access point information storage area 124 is the same as in the first embodiment. The CPU 110 clears the stored contents of the SIP server information storage area 126, and stores the IP address of the management server 14 received in S 126 in the SIP server information storage area 126. That is, in this embodiment, the SIP server information storage area 126 stores information related to the management server. Therefore, instead of calling the SIP server information storage area 126, it may be called a management server information storage area.

  A brief description will be given of how the IP telephone apparatus 100 of this embodiment performs telephone communication with another IP telephone apparatus (for example, the IP telephone apparatus 150). The case where IP telephone apparatus 100 is registered in SIP server 20 and IP telephone apparatus 150 is registered in SIP server 60 will be described as an example. In this case, the SIP server 20 stores combination information of the SIP URI of the IP telephone device 100 and the IP address of the management server 14. The management server 14 stores combination information of the SIP URI of the IP telephone device 100 and the IP address of the SIP server 20. The SIP server information storage area 126 of the IP telephone device 100 stores the IP address of the management server 14. Further, the SIP server 60 stores combination information of the SIP URI of the IP telephone device 150 and the IP address of the management server 54. The management server 54 stores combination information of the SIP URI of the IP telephone device 150 and the IP address of the SIP server 60. Further, the SIP server information storage area of the IP telephone device 150 stores the IP address of the management server 54.

  When making a call from IP telephone apparatus 100 to IP telephone apparatus 150, IP telephone apparatus 100 sends an INVITE command with the IP address (IP address of management server 14) stored in SIP server information storage area 126 as the transmission destination. Send. This INVITE command includes the SIP URI of the IP telephone apparatus 100 that is the transmission source and the SIP URI of the IP telephone apparatus 150 that is the transmission destination. The management server 14 receives the INVITE command. As described above, the management server 14 stores combination information of the SIP URI of the IP telephone device 100 and the IP address of the SIP server 20. Based on this combination information, the management server 14 specifies the IP address of the SIP server 20 paired with the transmission source SIPURI (the SIP URI of the IP telephone apparatus 100) included in the INVITE command. The management server 14 transmits an INVITE command using the IP address of the SIP server 20 as a transmission destination. The SIP server 20 receives the INVITE command.

  As in the first embodiment, the SIP server 20 is linked to the SIP servers 60 and 70. For this reason, the SIP server 20 can know that the IP telephone apparatus 150 is registered in the SIP server 60. The SIP server 20 transmits an INVITE command to the SIP server 60. The SIP server 60 receives the INVITE command. As described above, the SIP server 60 stores combination information of the SIP URI of the IP telephone device 150 and the IP address of the management server 54. Based on this combination information, the SIP server 60 identifies the IP address of the management server 54 that is paired with the destination SIP URI (SIP URI of the IP telephone device 150) included in the INVITE command. The SIP server 60 transmits an INVITE command with the IP address of the management server 54 as a transmission destination. The management server 54 receives the INVITE command. Management server 54 transmits an INVITE command to IP telephone apparatus 150.

  In other words, in this embodiment, the INVITE command transmitted from the IP telephone apparatus 100 is transmitted to the IP telephone apparatus 150 via the management server 14, the SIP server 20, the SIP server 60, and the management server 54. In response to this, 200 OK transmitted from IP telephone apparatus 150 is transmitted to IP telephone apparatus 100 via management server 54, SIP server 60, SIP server 20, and management server 14. Similarly, ACK and audio data are also transmitted via each device. In the present embodiment, the management servers 14 and 54 relay various communications between the IP telephone apparatuses 100 and 150 and the SIP servers 20 and 60.

  In the present embodiment, for example, when the IP telephone apparatus 100 broadcasts an IP address inquiry command to the network 10, the IP address of the management server 14 is transmitted from the management server 14 to the IP telephone apparatus 100. The IP telephone apparatus 100 can acquire the IP address of the management server 14, and transmits a REGISTER command with the IP address as a transmission destination. As a result, the management server 14 can register its own IP address and the SIP URI of the IP telephone device 100 in the SIP server 20. There is no need for the user to input the IP address of the SIP server 20 or the management server 14 to the IP telephone apparatus 100. A system with a low user workload has been realized.

  In this embodiment, the management servers 14 and 54 relay various communications (for example, voice data communications) between the IP telephone devices 100 and 150 and the SIP servers 20, 60 and 70. For example, the management servers 14 and 54 may store voice data transmitted from the IP telephone devices 100 and 150. In this case, it is possible to construct a system that can manage telephone communications of the IP telephone apparatuses 100 and 150 by the management servers 14 and 54.

  Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

  For example, in the process of S14 in FIG. 5, the SIP server does not transmit the combination information stored in S12 to the other SIP server, but only the SIP URI included in the combination information stored in S12 is transmitted to the other SIP server. You may send it. In this case, the other SIP server may delete the combination information including the SIP URI from the registered information storage area on condition that the received SIP URI is registered in the SIP server.

  The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

1 shows a configuration of an IP telephone network system. The structure of a SIP server is shown. The structure of a management server is shown. The structure of an IP telephone apparatus is shown. The flowchart of the process which a SIP server performs is shown. The flowchart of the process which a management server performs is shown. The flowchart of the process which an IP telephone apparatus performs is shown. The flowchart of the process which a management server performs is shown (2nd Example). The flowchart of the process which an IP telephone apparatus performs is shown (2nd Example).

Explanation of symbols

2: IP telephone network system 10, 50: Network 12, 52: Router 14, 54: Management server 16, 18, 56: Access point 20, 60, 70: SIP server 82, 84, 86: Communication line 90: Internet 92 : External network 100, 150: IP telephone device

Claims (8)

A first network including a first server information storage device, an IP telephone network system and a IP telephone apparatus can communicate with a device constituting the first network,
The IP telephone device
And broadcast means toward the first network, broadcasts a first command including the IP address of the IP telephone apparatus,
IP address receiving means for receiving the IP address of the first server information storage device transmitted from the first server information storage device;
As the transmission destination IP address of the first server information storage device received by the IP address receiving means, and a second command transmitting means for transmitting a second command including the IP telephone identification information of the IP telephone apparatus ,
The first server information storage device is
IP address storage means for storing the IP address of the first IP telephone server;
A first command receiving means for receiving the first command broadcast from the IP telephone apparatus,
On condition that the first command is received by the first command receiving device, a transmission destination IP address of the IP telephone apparatus included in the first command, the IP address of the first server information storage device An IP address transmitting means for transmitting;
A second command receiving means for receiving the second command transmitted from the IP telephone apparatus,
On condition that the second command is received by the second command receiving device, a transmission destination IP address of the first IP telephone server that is stored in the IP address storing means, said first server information storage by sending a third command including the first combination information is a combination of the IP telephone identification information of the IP telephone apparatus included in the second command to the IP address of the device, the said first combination information first have a combination information registration means for registering the IP telephone server,
The IP telephone device further includes:
When making a call to another IP telephone apparatus after the first combination information has been registered in the first IP telephone server, a predetermined command for making a call includes the first server information storage device and the first IP information. A predetermined command transmitting means for transmitting the predetermined command to the first server information storage device so as to be transmitted to the other IP telephone apparatus via the telephone server;
The first server information storage device further includes:
When the predetermined command is received from the IP telephone apparatus after the first combination information is registered in the first IP telephone server, the predetermined command is transmitted to the other IP via the first IP telephone server. Predetermined command transfer means for transferring the predetermined command to the first IP telephone server so as to be transmitted to the telephone device;
An IP telephone network system characterized by the above. A second network including a second server information storage device;
Said IP telephone apparatus, in the first location, a device capable of wireless communication that constitutes the first network,
Said IP telephone apparatus, in the second location, a device capable of wireless communication that constitutes the second network,
The IP telephone apparatus further comprises a first movement detecting means for detecting said that IP telephone apparatus is moved from the first location to the second location,
The broadcast means of the IP telephone apparatus further if the said from the first location to the second location IP telephone device is moved is detected by said first movement detecting means, toward the second network Broadcast the first command,
Wherein the IP address receiving means of the IP telephone apparatus is further adapted to receive an IP address of the second server information storage devices sent from the second server information storage devices,
Wherein the combination information registering means of the IP telephone apparatus is further adapted to transmit the second command IP address of the second server information storage device received by the IP address receiving means as a destination,
The second server information storage device,
Second device-side storage means for storing the IP address of the second IP telephone server;
A second device side receiving means for receiving the first command broadcast from the IP telephone apparatus,
On condition that the first command is received by the second device-side reception unit, as a transmission destination IP address of the IP telephone apparatus included in the first command, the IP address of the second server information storage device a second device-side transmission means for transmitting,
Means for receiving the second command transmitted from the IP telephone device;
On the condition that the second command has been received, the IP address of the second server information storage device and the second address are stored with the IP address of the second IP telephone server stored in the IP address storage means as the destination. Means for registering the second combination information in the second IP telephone server by transmitting a fourth command including second combination information that is a combination with IP telephone identification information of the IP telephone apparatus included in the command ; The IP telephone network system according to claim 1, further comprising: Wherein the first network includes a first access point,
The second network includes a second access point,
The IP telephone device is a device capable of wireless communication that constitutes the first network via the first access point,
The IP telephone device is a device capable of wireless communication that constitutes the second network via the second access point,
It said first movement detecting means of the IP telephone apparatus, by monitoring one of whether the access point as communication is possible, wherein the first location second location to the IP telephone device detects that it has moved The IP telephone network system according to claim 2. Wherein the 1IP telephone server and the second 2IP telephony server is configured separately,
Wherein each of the first 1IP telephone server and the second 2IP telephony server, on condition registration sent the first or second combination information from the IP telephone apparatus, the other at least IP telephone identification information included in the combination information To the IP phone server of
Each of the first 1IP telephone server and the second 2IP telephony server receives the IP telephone identification information sent from the IP telephone server of the other, and, in the case where the IP telephone identification information is registered in its own, 4. The IP telephone network system according to claim 2, wherein the combination information including the IP telephone identification information is deleted. The IP address storage unit of the first server information storage device stores each of the IP addresses of the plurality of first 1IP telephone server,
It said first server information storage device further includes an information acquisition unit that acquires information about the number of combination information registered in each of the plurality of first 1IP telephone server,
The combination information registering means of said first server information storage device as the destination number is smallest IP address of the 1IP telephone server combination information registered, and transmits the third command The IP telephone network system according to any one of claims 1 to 4. Wherein the first network includes a plurality of first access point,
The IP telephone device is a device capable of wireless communication that constitutes the first network through any first access point,
It said IP telephone apparatus, due to the IP telephone device is moved, further comprising a second movement detecting means for detecting that the first access point is capable wireless communication has changed,
The broadcast means of the IP telephone apparatus, when the first access point is capable wireless communication that has changed is detected by said second movement detecting means, wherein, wherein broadcasting the first command Item 6. The IP telephone network system according to any one of Items 1 to 5. An IP telephone apparatus used in an IP telephone network system comprising: a first network including a first server information storage device; and an IP telephone apparatus capable of communicating with devices constituting the first network;
Broadcast means for broadcasting a first command including an IP address of the IP telephone device toward the first network;
IP address receiving means for receiving the IP address of the first server information storage device transmitted from the first server information storage device;
Second command transmission means for transmitting a second command including IP telephone identification information of the IP telephone device, with the IP address of the first server information storage device received by the IP address reception means as a transmission destination, said first server information storage device, first comprises a first combination information is a combination of the first servers information IP telephone identification information of the IP telephone apparatus IP address of the storage devices to be included in the second command Transmitting the second command to the first server information storage device so as to transmit three commands to the first IP telephone server and register the first combination information with the first IP telephone server Means,
When making a call to another IP telephone apparatus after the first combination information has been registered in the first IP telephone server, a predetermined command for making a call includes the first server information storage device and the first IP information. An IP telephone apparatus comprising: a predetermined command transmission unit configured to transmit the predetermined command to the first server information storage device so that the predetermined command is transmitted to the other IP telephone apparatus via the telephone server. IP telephone comprising: a first network including a first server information storage device that stores the IP address of the first IP telephone server, the first and the IP telephone apparatus can communicate with a device constituting the first network In the network system, a method of registering IP telephone identification information of the first IP telephone apparatus in the first IP telephone server,
And broadcast process the first IP telephone device, which toward the first network, broadcasts a first command including the IP address of the first IP telephone device,
A first command receiving step in which the first server information storage device receives a first command broadcast from the first IP telephone device;
It said first server information storage device, on condition that the first command is received by the first command receiving step, as the destination of the IP address of the first IP telephone apparatus included in the first command, An IP address transmission step of transmitting an IP address of the first server information storage device;
An IP address receiving step in which the first IP telephone device receives an IP address of the first server information storage device transmitted from the first server information storage device;
The first IP telephone apparatus uses the IP address of the first server information storage device received in the first IP address receiving step as a transmission destination, and a second command including IP telephone identification information of the first IP telephone apparatus A second command transmission step of transmitting
Said first server information storage device, a second command reception step of receiving the second command transmitted from the first IP telephone device,
Said first server information storage device, the condition that the second command is received by the second command receiving step, as the destination of the IP address of the first IP telephone server, the first server information storage device by sending a third command including the first combination information IP address to be the combination of the IP telephone identification information of the first IP telephone device second included in the command, the said first combination information first 1 a combination information registration process to be registered in the IP telephone server ;
When the IP telephone apparatus makes a call to another IP telephone apparatus after the first combination information is registered in the first IP telephone server, a predetermined command for making a call is stored in the first server information storage. A predetermined command transmission step of transmitting the predetermined command to the first server information storage device so as to be transmitted to the other IP telephone device via the device and the first IP telephone server;
After the first combination information is registered in the first IP telephone server, when the first server information storage device receives the predetermined command from the IP telephone apparatus, the first combination information is transmitted via the first IP telephone server. A predetermined command transfer step of transferring the predetermined command to the first IP telephone server so that the predetermined command is transmitted to the other IP telephone device;
An IP telephone identification information registration method comprising:

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