JP2007311870A - Terminator and communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a subscriber VoIP terminator whereby positional information denoting a connection position of a mobile terminal can be managed through a communication network. <P>SOLUTION: A number cross-reference information DB 33 in the subscriber VoIP terminator 30 stores cross-reference information in advance wherein an extension number and an external line number are cross-referenced with each other. A terminal side transmission/reception section 35 receives a connection request including an extension number from a wireless terminal newly connected. A transfer section 32 converts the extension number included in the connection request received by the terminal side transmission/reception section 35 into an external line number on the basis of the cross-reference information stored in the number cross-reference information DB 33. A network side transmission/reception section 31 transmits a position registration request including information for denoting a connection position cross-referenced with its own apparatus and the external line number converted by the transfer section 32 to an IP network of a communication enterprise. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a termination device used in a communication network that provides, for example, a VoIP communication service, and a communication system.

  In a VoIP (Voice Over IP) communication service that provides a telephone communication service through an IP network, a terminal device for a VoIP communication service connected to a communication carrier's communication network is installed at each user's home, and the user is a VoIP terminal A mode is adopted in which a VoIP communication service is used by connecting a device to the terminal device by wire or wirelessly.

By the way, in general, in communication services, it is possible to develop a more advanced communication service by acquiring the position information of the terminal device. For example, in Patent Document 1, the position information of the wireless terminal device is acquired. Technology etc. are disclosed.
JP 2004-248291 A

  In the VoIP communication service described above, since the terminal device is once relayed by the termination device and connected to the communication network, the device that can be monitored from the communication network side is the termination device, and the terminal device from the communication network side. Cannot be monitored directly. Therefore, if the terminal device is fixedly connected to one terminal device, if the position information of the terminal device is managed in the communication network, the position information is directly used as the connection position of the terminal device. Will be shown.

  However, in recent VoIP terminal devices, there are portable terminal devices that function as mobile phone terminals when going out and function as VoIP wireless terminal devices when at home, and the connection positions of such terminal devices are communicated. There is a problem that it cannot be managed on the network side.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a terminal device and a communication system that can register position information indicating a connection position of a portable terminal device in a communication network. It is to provide.

  In order to solve the above problem, the present invention communicates with an extension number, and connects a terminal device capable of changing a connection position to the terminal device, and relays communication to the terminal device based on the extension number. The terminal device is registered by associating the external line number with the location information of the terminal device in its own network, and a call control signal addressed to the terminal device is transmitted based on the registered correspondence information between the external line number and the location information. A terminal device in a communication system including a communication network that transmits to a terminal device to which the device is connected, a storage unit that stores in advance correspondence information that associates the extension number and the external line number, and a new connection Included in the connection request received by the terminal side receiving means based on correspondence information stored in the storage means and terminal side receiving means for receiving a connection request including the extension number from the terminal device A network for transmitting to the communication network a position registration request including conversion means for converting an extension number into an external line number, the position information associated with the own device in the communication network, and the external line number converted by the conversion means. And a terminal transmission means.

  In addition, the present invention provides a terminal device that performs communication using an extension number and can change a connection position, a termination device that is connected to the terminal device and relays communication to the terminal device based on the extension number, and an external line number And a location information management device that performs registration by associating the termination device with the location information in its own network, and based on the correspondence between the external line number registered by the location information management device and the location information In a communication system comprising a communication network for transmitting a call control signal addressed to a terminal device to a terminal device connected to the terminal device, the terminal device transmits a connection request including the extension number to the terminal device. A terminal that receives a connection request including the extension number from the terminal device, and a storage unit that stores in advance correspondence information in which the extension number and the external number are associated with each other. A receiving unit; a converting unit that converts an extension number included in the connection request received by the terminal side receiving unit into an external line number based on correspondence information stored in the storage unit; Network side transmission means for transmitting a location registration request including the location information associated with the external line number converted by the conversion means to the location information management device through the communication network, and the location information management device Is based on a location information management storage means for storing the outside line number and the connection position, a receiving means for receiving a location registration request from the terminal device, and an outside line number included in the location registration request received by the receiving means. And a registration means for writing and registering the location information included in the location registration request in the location information storage means.

  According to the present invention, the terminating device performs registration by associating the outside line number with the connection position of the terminal device, and transmits and receives a call control signal including the outside line number based on the correspondence information between the registered outside line number and the connection position. Corresponding information that is connected to the communication network and associates the extension number with the external number is stored in advance in the storage means, and a connection request including the extension number is received from the newly connected terminal device and stored in the storage means. Based on the correspondence information, the extension number included in the received connection request is converted into an outside line number, and a location registration request including information indicating the connection position associated with the own device and the converted outside line number is transmitted to the communication network. It was set as the structure to do. As a result, when the terminal device is connected to the terminal device, information indicating the connection position associated with the terminal device is transmitted to the communication network as the position information of the terminal device, and the communication network performs registration so that the terminal device It is possible to manage the connection position on the communication network.

  According to the present invention, in the communication system, the terminal device transmits a connection request including an extension number to the termination device, and the termination device previously stores correspondence information in which the extension number and the external number are associated with each other. And receiving the connection request including the extension number from the terminal device, converting the extension number included in the received connection request into the external number based on the correspondence information stored in the storage means, and A location registration request including information indicating the connection location associated with the device and the converted external line number is transmitted to the location information management device via the communication network. The location information management device receives the location registration request from the terminal device, and writes information indicating the connection location included in the location registration request in the location information storage unit based on the external line number included in the received location registration request. The configuration is to be registered. As a result, when the terminal device is connected to the terminal device, information indicating the connection position associated with the terminal device is transmitted to the position information management device provided in the communication network as the position information of the terminal device, and the position information management device registers By performing the above, it becomes possible to manage the connection position of the terminal device on the communication network side.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic block diagram showing a communication system 1 according to the present embodiment.
The communication system 1 includes a communication network 100 operated by a communication carrier A, a home VoIP terminal device 30 installed in a house 200, a wireless terminal device 40 connected to the communication network 100 through the home VoIP terminal device 30, and a communication network. And a fixed telephone terminal device 60 connected to 100.

  In FIG. 1, a communication carrier A is a communication carrier that provides a so-called fixed telephone communication service and a VoIP communication service. A communication network 100 operated by the communication carrier A includes an IP network 50 and a public telephone network. There are two networks of 55. In the communication network 100, for example, a SIP (Session Initiation Protocol) server is applied to the call control device 51, and a call between a terminal connected to the public telephone network 55 and a terminal connected to the IP network 50 is performed. Take control. The location information management device 10 is connected to the IP network 50 and responds with the location information of the wireless terminal device 40 stored therein based on a request from the call control device 51. A GW (GateWay) 52 is a device connected to a communication network of another communication carrier.

  For example, a home router having a function of performing VoIP communication is applied to the home VoIP terminal device 30, and an IP address uniquely identifiable in the IP network 50 and a domain name associated with the IP address, for example, , "Terminal1.netA.com" etc. are pre-assigned. The home VoIP terminal device 30 is connected to the IP network 50 of the communication network 100 as a terminal device of the communication network 100, and is connected to the wireless terminal device 40 by a wireless LAN (Local Area Network). In addition, the home VoIP terminal device 30 stores a telephone number previously assigned to the wireless terminal device 40 by the communication carrier A and an extension number set inside the wireless terminal device 40 in association with each other. Here, the telephone number given in advance by the telecommunications carrier A is a so-called outside line telephone number (hereinafter referred to as a telecommunications carrier providing a fixed telephone communication service) that can perform call connection processing in the communication network 100. Telephone number is described as an outside line number). As the outside line number, a 0AB-J format such as “03-XXXX-1111” is assigned. The fixed telephone terminal device 60 is, for example, a telephone terminal connected to the public telephone network 55 by wire, and the aforementioned external line number is given in advance by the communication carrier A.

 For example, the wireless terminal device 40 is connected to a communication network that provides a VoIP communication service through the in-home VoIP terminal device 30 and performs a VoIP voice communication, and a communication network that provides a mobile communication service as a mobile phone terminal. It is a portable terminal device that has a function of connecting and performing voice communication, and can switch and connect to a connection destination communication network based on the radio wave intensity of a received radio signal. In addition, the wireless terminal device 40 uses an extension number used when connecting to the home VoIP terminal device 30 and a telephone number used when connecting to a communication network provided with a mobile communication service when functioning as a mobile phone terminal ( Hereinafter, a telephone number given by a telecommunications carrier providing a mobile communication service is described as a mobile phone number).

Next, the internal configuration of the home VoIP terminal device 30 will be described with reference to FIG.
In the home VoIP terminal device 30, the network side transmission / reception unit 31 is connected to the IP network 50 by a LAN cable or the like. The terminal-side transmission / reception unit 35 has a wireless LAN (Local Area Network) communication function. When receiving a connection request from the wireless terminal device 40 through the antenna 36 to be connected, the terminal-side transmitting / receiving unit 35 communicates with the wireless terminal device 40 in the wireless LAN Establish a circuit. At this time, the in-home VoIP terminal device 30 assigns an IP address to the wireless terminal device 40 by DHCP (Dynamic Host Configuration Protocol) or the like, and associates the assigned IP address with the extension number of the wireless terminal device 40. And store it inside.

  The number correspondence information DB (Data Base) 33 has the data structure shown in FIG. 3A, and is given to the wireless terminal device 40 by the extension number stored in the wireless terminal device 40 and from the communication carrier A in advance. Are stored in association with each other. In FIG. 3 (a), two extension numbers are stored in association with two extension numbers, and these two extension numbers are assigned in advance to two different wireless terminal devices, and the respective wireless terminal devices. Will be stored inside.

  The transmission destination information DB 34 has a data configuration shown in FIG. 3B, and includes items of “transmission destination”, “address”, and “transmission information type”. In the “transmission destination”, the name of the device that is the transmission destination, that is, the location information management device and the call control device are set. In the “address” item, the IP address (address A) in the IP network 50 of the location information management device 10 is set in the location information management device row, and the IP network of the call control device 51 is set in the call control device row. The IP address (address B) at 50 is set. In the item of “transmission information type”, the type of transmission information such as a location registration request is set in the row of the location information management device, and call control such as a call setting request or a call disconnection request is set in the row of the call control device. The type of transmission information regarding is set.

  When the terminal side transmission / reception unit 35 receives a terminal registration request from the wireless terminal device 40 through the antenna 36, the transfer unit 32 reads the external line number corresponding to the extension number included in the terminal registration request from the number correspondence information DB 33, and registers the terminal. Convert the requested extension to an external number. In addition, the transfer unit 32 generates a location registration request that includes the converted outside line number and the domain name given in advance to the in-home VoIP terminal device 30 as the location information, and the destination information DB 34 as the destination address of the location registration request. Is set to the address (address A) of the location information management device 10 stored in the network, and a location registration request is sent to the IP network 50 through the network side transmission / reception unit 31.

  When the transfer unit 32 receives an incoming request including an external line number corresponding to the wireless terminal device 40 from the IP network 50, the transfer unit 32 converts the external line number included in the incoming request into an extension number based on the number correspondence information DB33. Then, the terminal side transmission / reception unit 35 transmits an incoming call request to the wireless terminal device 40 corresponding to the extension number.

  Next, the internal configuration of the location information management device 10 will be described with reference to FIG. In the location information management device 10, the transmission / reception unit 11 is connected to the IP network 50, and inputs to the search unit 12 or the registration unit 13 according to the received information. For example, when the received information is a location information request, information is input to the search unit 12, and when the received information is a location registration request, the information is input to the registration unit 13.

  The location information management DB 14 has the data configuration shown in FIG. 5, and includes items indicating a plurality of communication carriers and “position information” items, and different communication carriers for one wireless terminal device 40. A plurality of telephone numbers assigned for each and the location information are stored in association with each other. In FIG. 5, for example, the wireless terminal device shown in the first row is given an external line number of “03-XXXX-1111” from the communication carrier A that provides the fixed telephone communication service and the VoIP communication service, and the mobile unit A mobile phone number “090-YYYY-7777” is assigned by the communication carrier B that provides the communication service. In addition, in the wireless terminal devices shown in the second and third lines in FIG. 5, in addition to the telephone numbers assigned to the communication carrier A and the communication carrier B, communication that provides a public wireless LAN VoIP communication service. A telephone number for VoIP communication such as “050-ZZZZ-9999” or “050-TTTT-5555” is given by the operator C.

  In FIG. 5, “position information” is set with information indicating the connection position of the wireless terminal device. For example, the example shown in the first line is a case where the wireless terminal device is connected to the in-home VoIP terminator 30 of the communication network of the communication carrier A, and “terminal1. The domain name of “netA.com” is set. When not connected to the communication network 100 of the communication carrier A but connected to the communication network of the communication carrier B or the communication carrier C, as shown in the second and third lines, “ Names indicating communication carriers such as “communication carrier B” and “communication carrier C” are set.

  In FIG. 4, the registration unit 13 receives the location registration request received by the transmission / reception unit 11 from the home VoIP terminal device 30 by the transmission / reception unit 11. In addition, the registration unit 13 detects an entry in the location information management DB 14 corresponding to the telephone number included in the location registration request input from the transmission / reception unit 11, and adds a location registration request to the item “location information” of the detected entry. The domain name of the home VoIP terminal device 30 included as the location information is written and registered. Further, when the transmission / reception unit 11 receives a location registration request from the communication network of another carrier, the registration unit 13 detects an entry in the location information management DB 14 corresponding to the telephone number included in the received location registration request, Information indicating the communication carrier of the transmission source included in the terminal registration request is written and registered in the item “location information” of the detected entry.

  The search unit 12 receives a location information request including the outside line number of the wireless terminal device 40 from the call control device 51, detects an entry in the location information management DB 14 corresponding to the outside line number included in the received location information request, The item of “location information” of the detected entry is read, and if the information of the read item is a domain name, a location information response including “home” is transmitted to the call control device 51. In addition, when the read item information indicates a communication carrier, the search unit 12 includes information indicating the communication carrier and a telephone number assigned to the wireless terminal device 40 by the communication carrier. The location information response that includes it is transmitted to the call control device 51.

  Next, the location information registration process of the wireless terminal device 40 will be described with reference to FIGS. 6 and 7. FIG. 6 shows a flow of location information registration processing for the location information management device 10 installed in the communication network 100 performed by the home VoIP termination device 30 when the wireless terminal device 40 connects to the home VoIP termination device 30. It is a figure.

  In FIG. 6, first, the home VoIP terminator 30 is registered in the home VoIP terminator and the domain name previously given to the home VoIP terminator 30 by the call control device 51 when the power is turned on and activated. A registration request including an outside line number is transmitted. When the call control device 51 receives the registration request from the home VoIP terminal device 30, the call control device 51 associates the domain name and the external line number included in the registration request with each other and registers them in the internal route information (step Sa1).

  Next, when the wireless terminal device 40 is turned on and activated, the wireless terminal device 40 establishes a connection with the terminal-side transmitting / receiving unit 35 of the in-home VoIP terminal device 30, and after the connection, a terminal registration request including an extension number stored therein Is transmitted to the in-home VoIP terminator 30 by a radio signal (step Sa2). The terminal-side transmitting / receiving unit 35 of the home VoIP terminal device 30 receives the terminal registration request via the antenna 36 and inputs the received terminal registration request to the transfer unit 32. The transfer unit 32 reads out the external line number corresponding to the extension number included in the input terminal registration request from the number correspondence information DB 33, converts the extension number of the terminal registration request into the external line number, converts the converted external line number and the home VoIP A location registration request including the domain name given in advance to the terminating device 30 as the location information is generated (step Sa3). Then, the transfer unit 32 reads the address A, which is the address of the location information management device 10 stored in advance in the transmission destination information DB 34 based on the transmission information type of the location registration request, and uses the read address A as the location registration request. A location registration request is set as a transmission destination address and input to the network side transmission / reception unit 31 (step Sa4). The network side transmission / reception unit 31 transmits the input location registration request to the location information management device 10 (step Sa5).

  When the transmission / reception unit 11 of the location information management device 10 receives the location registration request from the in-home VoIP terminal device 30, the transmission / reception unit 11 inputs the received location registration request to the registration unit 13. The registration unit 13 detects from the position information management DB 14 an entry whose number matches the external line number included in the input position information request, and adds the domain name included in the position information request to the “position information” of the detected entry. Write and register (step Sa6).

  Next, location information registration processing by the location information management device when the wireless terminal device 40 is connected to a communication network of another communication carrier will be described with reference to FIG.

  7 is a block diagram showing a configuration of a communication system 1a in which a communication network 100B of a communication carrier B that is a mobile communication carrier is connected to the communication network of the communication carrier A of the communication system 1 described in FIG. It is. In FIG. 7, the communication network 100 in FIG. 1 corresponds to the communication network 100A, the location information management device 10 corresponds to the location information management device 10A, and the call control device 51 corresponds to the call control device 51A. . The GW 52 corresponds to the GW 52A. Although not shown in FIG. 1, the GW 53A is connected to the GW 53B connected to the location information management device 10B of the opposing communication network 100B.

  In the communication network 100B of the communication carrier B, the base station device 70 is connected to the call control device 51B and the location information management device 10B, and communicates with the wireless terminal device 40 by a communication method such as CDMA (Code Division Multiple Access). I do. The location information management device 10B and the call control device 51B are devices having the same functions as those of the location information management device 10A and the call control device 51A of the communication network 100A except for the connection with the base station device 70. In the following description, the functional unit of the location information management device 10A is described by adding “A” to the reference numeral of the functional unit of FIG. 4, and the functional unit of the location information management device 10B is the function of FIG. Add “B” to the part code.

  First, when the wireless terminal device 40 is carried by the user, it moves from the house 200 to the outdoors (step Sb1). The wireless terminal device 40 that has moved outdoors is disconnected when the connection with the in-home VoIP terminal device 30 is out of the radio wave range, and is newly connected to the base station device 70. Next, the wireless terminal device 40 transmits a location registration request including a mobile number assigned by the communication carrier B, which is stored in advance, to the location information management device 10B through the base station device 70 (step Sb2). The registration unit 13B of the location information management device 10B detects an entry including the mobile number included in the received location registration request from the location information management DB 14B, and the item “location information” of the detected entry exists in the communication network 100B. The location information indicating that is written and registered. Next, the registration unit 13B detects a location information management device that manages another telephone number included in the detected entry, in this case, the location information management device 10A. Then, the registration unit 13B transmits a location registration request including the mobile number and the location information indicating the communication carrier B through the transmission / reception unit 11B with the location information management device 10A as a transmission destination (step Sb3).

  When receiving the location registration request from the location information management device 10B, the transmission / reception unit 11A of the location information management device 10A inputs the received location registration request to the registration unit 13A. The registration unit 13A detects an entry corresponding to the mobile number included in the input location registration request from the location information management DB 14A, and includes a communication carrier included in the location registration request in the item “location information” of the detected entry. Information indicating B is written and registered (step Sb4).

  6 and 7, when the wireless terminal device 40 is connected to the home VoIP terminal device 30 in the location information management device, the domain name of the home VoIP terminal device 30 is changed to the wireless terminal device 40. Can be registered as position information. In addition, even when the wireless terminal device 40 is connected to the communication network of another communication carrier, information indicating the connection carrier can be registered as position information of the wireless terminal device 40. In this way, by making it possible to register the position information indicating the connection position of the wireless terminal device 40, which telephone number of the wireless terminal device 40 is valid, that is, in the call control process described later, It is possible to connect to the wireless terminal device 40 by making a call origination request using any one of the telephone numbers assigned to the wireless terminal device 40 without considering whether the call can be connected.

  Next, referring to FIGS. 8 to 11, the call connection process when the position information is registered by the processes of FIGS. 6 and 7 will be described.

  8 and 9 are diagrams showing call connection processing when a call is made from the fixed telephone terminal device 60 when the wireless terminal device 40 is connected to the home VoIP terminal device 30. FIG.

  In FIG. 8, the processing from step Sc <b> 1 to step Sc <b> 4 is registration processing of position information of the wireless terminal device 40 described with reference to FIG. 6 described above. In the following, the call connection process will be described in association with the process flow of the sequence diagram after step Sc5 of FIG. 8 and the process of FIG.

  First, the fixed telephone terminal device 60 transmits a call origination request with “03-XXXX-1111”, which is an external line number assigned to the wireless terminal device 40 by the home VoIP terminal device 30, as a call destination (step). Sc5, Sd1). When receiving a call request from the fixed telephone terminal device 60, the call control device 51A reads the external line number included in the call request, and transmits a location information request including the read external line number to the location information management device 10A (step Sc6). , Sd2).

  When receiving the location information request from the call control device 51A, the transmission / reception unit 11A of the location information management device 10A inputs the received location information request to the search unit 12A. The search unit 12A detects from the position information management DB 14 an entry that matches the external line number included in the input position information request, and reads the item “position information” of the detected entry. Here, since the domain name of the in-home VoIP termination device 30 is registered in “location information”, a location information response including “in-home” indicating that it is in the communication network 100A is sent through the transmission / reception unit 11A to the call control device 51A. (Steps Sc7 and Sd3).

  The call control device 51A includes “in-home” in the received location information response. Therefore, based on the external line number included in the call request received from the fixed telephone terminal device 60, the call control device 51A uses the route information stored therein. The home VoIP terminal device 30 is detected as a transmission destination, and a call origination request is transmitted to the home VoIP terminal device 30 as an incoming call request (steps Sc8 and Sd4). The in-home VoIP terminal device 30 converts the external line number included in the received incoming call request into an extension number based on the number correspondence information DB 33, and transmits the incoming call request including the converted extension number to the wireless terminal device 40. 40 arrives and a call is established with the fixed telephone terminal device 60 (steps Sc9 and Sd4).

  Next, FIG. 10 and FIG. 11 show a case where the wireless terminal device 40 moves outdoors, is disconnected when the connection with the home VoIP terminal device 30 is out of the radio wave range, and is newly connected to the base station device 70. FIG. 6 is a diagram showing a call connection process when a call is made from the fixed telephone terminal device 60.

  In FIG. 10, processing from step Se <b> 1 to step Se <b> 3 is registration processing of position information of the wireless terminal device 40 described with reference to FIG. 7 described above. Hereinafter, the call connection process will be described by associating the process flow of the sequence diagram after step Se5 of FIG. 10 with the process of FIG.

  First, the fixed telephone terminal device 60 transmits a call origination request with “03-XXXX-1111”, which is an external line number assigned to the wireless terminal device 40 by the home VoIP terminal device 30, as a call destination (step). Se5, Sf1). When the call control device 51A receives the call request from the fixed telephone terminal device 60, the call control device 51A reads the external line number included in the call request and transmits a location information request including the read external line number to the location information management device 10A (step Se6). , Sf2).

  When receiving the location information request from the call control device 51A, the transmission / reception unit 11A of the location information management device 10A inputs the received location information request to the search unit 12A. The search unit 12A detects from the position information management DB 14 an entry that matches the external line number included in the input position information request, and reads the item “position information” of the detected entry. Here, since “communication carrier B”, which is information indicating communication carrier B, is registered in “location information”, “communication carrier B” is detected. Since the detected position information is not a device in the communication network 100A, the search unit 12A reads the mobile number “090-YYYY-7777” assigned by the “communication carrier B” detected from the entry. Then, the search unit 12A transmits a location information response including the information of the “telecom carrier B” detected as the location information and the mobile number “090-YYYY-7777” to the call control device 51A through the transmission / reception unit 11A ( Step Se7, Sf3).

  Since the received location information response includes “communication carrier B”, the call control device 51A detects the call control device 51B of the communication carrier B as the transmission destination from the path information stored therein, The external line number included in the outgoing call request received from the fixed telephone terminal device 60 is converted into a mobile phone number included in the location information response to make an incoming call request, and the incoming call request is transmitted to the call control device 51B (step Se8, Sf4). The call control device 51B transmits the incoming request to the wireless terminal device 40 through the base station device 70 based on the mobile number included in the received incoming request, and the wireless terminal device 40 receives the incoming call, and the fixed telephone terminal device 60 A call is established during (step Se9, Sf5).

  Through the above processing, the user of the fixed-line terminal device 60 on the transmission side makes a transmission request using the external line number assigned to the wireless terminal device 40, so that the wireless terminal device 40 can be used regardless of the connection position of the wireless terminal device 40. It becomes possible to make a call without considering which telephone number of the wireless terminal device 40 is valid, that is, whether or not the call can be connected.

  Further, in the above processing, the transmission is made by the external line number given by the communication network 100A. For example, when the wireless terminal device 40 is connected to the home VoIP terminal device 30, it is connected to the communication network 100B. Even if a call is transmitted from another wireless terminal device using the mobile phone number of the wireless terminal device 40, the outgoing call request is transferred from the communication network 100B to the communication network A, and the incoming call request is transmitted to the wireless terminal device 40 to establish a call. It is possible to make it.

  In the configuration of the above embodiment, for example, priority is given to the data configuration of the location information management DB 14 of the location information management device 10, and the wireless terminal device 40 provides a communication network that provides mobile communication services, and public wireless When connected to a communication network that provides a LAN VoIP service, location information indicating both communication networks can be registered in the location information management DB 14. When a call request to the wireless terminal device 40 is generated, an incoming request is transmitted to the wireless terminal device 40 through a communication network that provides a low-cost public wireless LAN VoIP service based on the priority. You may make it do.

  Further, in FIG. 1 described above, the wireless terminal device 40 stores the extension number and the mobile number internally, but it may also store the outside line number corresponding to the extension number in advance.

  In the above embodiment, the domain name is used as the location information included in the location registration request. However, the present invention is not limited to this embodiment, and the IP address assigned to the home VoIP terminal device 30 is not limited to this embodiment. And the IP address may be registered as “location information”.

  In the above-described embodiment, the configuration in which the location registration process is performed by the in-home VoIP terminal device 10 connected to the communication network of the communication carrier A that provides the fixed-line communication service has been described. The present invention is not limited to this embodiment. For example, a termination device corresponding to the in-home VoIP termination device 10 is connected to the communication network of the communication carrier C that provides the public wireless LAN service shown in FIG. Registration processing may be performed.

It is a block diagram which shows the communication system in this embodiment. It is a block diagram which shows the internal structure of the in-home VoIP termination device in the same embodiment. It is the figure which showed the data structure of the database with which the in-home VoIP termination | terminus apparatus in the same embodiment is provided. It is a block diagram which shows the internal structure of the positional information management apparatus in the embodiment. It is the figure which showed the data structure of the database with which the positional information management apparatus in the same embodiment is provided. It is the figure which showed the flow of the positional information registration process via the home VoIP termination | terminus apparatus in the embodiment. It is the figure which showed the flow of the positional information registration process via the other communication network in the embodiment. It is the sequence diagram which showed the flow of the call connection process via the home VoIP termination | terminus apparatus in the same embodiment. It is the figure which showed the flow of the call connection process via the in-home VoIP termination device in the same embodiment. It is the sequence diagram which showed the flow of the call connection process via the other communication network in the embodiment. It is the figure which showed the flow of the call connection process via the other communication network in the same embodiment.

Explanation of symbols

30 Home VoIP Termination Device 31 Network Side Transmission / Reception Unit 32 Transfer Unit 33 Number Corresponding Information DB
34 Destination information DB
35 Terminal side transceiver 35
36 Antenna

Claims (2)

A terminal device that communicates with an extension number and can change the connection position; a termination device that is connected to the terminal device and relays communication to the terminal device based on the extension number; an external line number and the terminal device itself A communication network that performs registration in association with location information in the network, and transmits a call control signal addressed to the terminal device to a termination device to which the terminal device is connected based on correspondence information between the registered external line number and location information A termination device in a communication system comprising:
Storage means for storing in advance correspondence information in which the extension number and the outside line number are associated;
A terminal-side receiving means for receiving a connection request including the extension number from a newly connected terminal device;
Conversion means for converting an extension number included in the connection request received by the terminal-side receiving means into an external line number based on correspondence information stored in the storage means;
Network side transmission means for transmitting to the communication network a location registration request including the position information associated with the own device in the communication network and the external line number converted by the conversion means;
A termination device comprising: A terminal device that communicates with an extension number and can change the connection position; a termination device that is connected to the terminal device and relays communication to the terminal device based on the extension number; an external line number and the terminal device itself A location information management device that performs registration by associating location information with each other in the network, and call control addressed to the terminal device based on correspondence information between the external line number registered by the location information management device and the location information In a communication system comprising a communication network for transmitting a signal to a terminal device connected to the terminal device,
The terminal device
A transmission means for transmitting a connection request including the extension number to the terminal device;
The terminator is
Storage means for storing in advance correspondence information in which the extension number and the outside line number are associated;
Terminal-side receiving means for receiving a connection request including the extension number from the terminal device;
Conversion means for converting an extension number included in the connection request received by the terminal-side receiving means into an external line number based on correspondence information stored in the storage means;
Network-side transmission means for transmitting a location registration request including the location information associated with the own device in the communication network and the external line number converted by the conversion means to the location information management device through the communication network; Prepared,
The location information management device includes:
Position information management storage means for storing the external line number and the connection position;
Receiving means for receiving a location registration request from the terminal device;
A registration unit for writing and registering the location information included in the location registration request in the location information storage unit based on an external line number included in the location registration request received by the reception unit;
A communication system comprising:

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