JP5819017B1 - Communication system and connection method - Google Patents

Abstract

An object of the present invention is to provide a communication system 1 or the like that allows a user of a portable terminal 2 to easily connect to a wireless LAN 15. A connection method according to the present invention transmits a method for accessing a first server 3 to a portable terminal 2 when the second server 4 is requested to connect to the wireless LAN 15 from the portable terminal 2. When the first server 3 receives communication by the access method from the mobile terminal 2, the identification information of the mobile terminal 2 is sent to the second server 4 on the condition that the mobile terminal is roamed to the mobile phone network. And when the second server 4 receives the identification information of the portable terminal 2 from the first server 3, it includes validating a password for permitting the portable terminal 2 to connect to the wireless LAN 15. [Selection] Figure 1

Description

  The present invention relates to a communication system and a connection method.

  In recent years, mobile terminals having a function of connecting to a plurality of types of communication networks such as a mobile phone network and a wireless local area network (LAN) are becoming widespread. For example, when a foreigner using such a mobile terminal visits Japan and visits Japan, the foreign tourist uses a mobile phone network that needs to pay a high communication fee for information on sightseeing in Japan. Without using a free wireless LAN.

  For example, in Non-Patent Documents 1 and 2, an application for connecting to a free wireless LAN is downloaded to a foreign tourist's mobile terminal and authenticated, thereby enabling the mobile terminal to connect to the wireless LAN. A scheme has been proposed.

"Japan Connected Free Wi-Fi", [online], [Search March 18, 2015], Internet <URL: http://www.ntt-bp.net/jcfw/en.html> “TRAVEL JAPAN Wi-Fi”, [online], [Search March 18, 2015], Internet <URL: http://wi2.co.jp/tjw/english.html>

  However, in order to download an application for connecting to a free wireless LAN and authenticate the person, a complicated operation is required, and a foreign tourist needs a lot of labor and time to connect to the free wireless LAN. Sometimes it was necessary.

  The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a communication system and a connection method that allow a user of a portable terminal to easily connect to a wireless LAN.

  A connection method according to the present invention includes a first server that can communicate with a mobile phone network, and a second server that can communicate with the wireless LAN and communicate with the first server. In the connection method, when the second server is requested to connect to the wireless LAN from the portable terminal, the second server transmits an access method to the first server to the portable terminal. When the communication by the access method is received, the mobile terminal transmits roaming information to the second server on the condition that the mobile terminal is roamed to the mobile phone network, and the second server transmits the mobile terminal to the mobile terminal. And enabling the password for permitting the connection to the wireless LAN by the portable terminal when the identification information is received.

  In the connection method according to the present invention, it is preferable that the password is validated by the second server transmitting the password to the mobile terminal via the first server.

  In the connection method according to the present invention, it is preferable that the password is validated by a password transmitted from the second server to the portable terminal together with the access method.

  In the connection method according to the present invention, it is preferable that the access method is a call from a portable terminal to the first server by a predetermined telephone number.

  In the connection method according to the present invention, it is preferable that a plurality of wireless LANs exist and a predetermined telephone number is set for each of the plurality of wireless LANs.

  In the connection method according to the present invention, the access method is preferably an access to a predetermined URL corresponding to the first server from the mobile terminal.

  In the connection method according to the present invention, it is preferable that a plurality of wireless LANs exist and a predetermined URL is set for each of the plurality of wireless LANs.

  In the connection method according to the present invention, communication by the access method is relayed from the mobile terminal to the first server only when the mobile terminal is roamed to the mobile phone network, and the first server is accessed from the mobile terminal. It is preferable to consider that the condition is satisfied when communication by the method is received.

  In the connection method according to the present invention, the communication system further includes a third server that stores identification information of the mobile terminal roamed to the mobile phone network, and the first server stores the identification information of the mobile terminal. It is preferable to determine whether or not the condition is satisfied depending on whether or not it is stored in the third server as identification information of the mobile terminal roaming on the telephone network.

  A communication system according to the present invention is a communication system having a first server capable of communicating with a mobile phone network, and a second server capable of communicating with a wireless LAN and capable of communicating with the first server. When a connection to the wireless LAN is requested from the mobile terminal, a second transmission unit that transmits the access method to the first server to the mobile terminal to the mobile terminal, and identification information of the mobile terminal from the first server A second control unit that validates a password for permitting connection to the wireless LAN by the mobile terminal when received, and the first server receives communication by the access method from the mobile terminal, A first transmission unit configured to transmit the identification information of the portable terminal to the second server on the condition that the portable terminal is roamed to the cellular phone network.

  According to the communication system and the connection method according to the present invention, the user of the mobile terminal can easily connect to the wireless LAN.

  In addition, since the access method from the portable terminal to the first server is set to be transmitted by a predetermined telephone number, the telephone number notified by the caller ID notification cannot be spoofed, and the tracer's own traceability is ensured. The security of identity authentication can be guaranteed.

1 is a schematic diagram for explaining an outline of a communication system 1. FIG. 1 is a diagram illustrating an example of a schematic configuration of a communication system 1. FIG. 2 is a diagram illustrating an example of a schematic configuration of a mobile terminal 2. FIG. 2 is a diagram illustrating an example of a schematic configuration of a first server 3. FIG. (A) is a figure which shows an example of schematic structure of the 2nd server 4, (b) is a figure which shows an example of the data structure of an authentication information table. (A) is a figure which shows an example of schematic structure of the 3rd server 5, (b) is a figure which shows an example of the data structure of a roaming management table. 2 is a diagram illustrating an example of an operation sequence of the communication system 1. FIG. It is a schematic diagram for demonstrating the outline of the other communication system. It is a figure which shows an example of the operation | movement sequence of the other communication system. FIG. 6 is a schematic diagram for explaining an outline of another communication system 1; It is a figure which shows an example of the operation | movement sequence of the other communication system 1. FIG. (A)-(c) is a figure which shows an example of the screen displayed on the portable terminal 2. FIG. (A), (b) is a figure which shows an example of the screen displayed on the portable terminal 2. FIG. (A)-(c) is a figure which shows an example of the screen displayed on the portable terminal 2. FIG.

  Hereinafter, various embodiments of the present invention will be described with reference to the drawings. However, it should be noted that the technical scope of the present invention is not limited to these embodiments, but extends to the invention described in the claims and equivalents thereof.

(First embodiment)
FIG. 1 is a schematic diagram for explaining an outline of a communication system 1 in the first embodiment. The communication system 1 includes a mobile terminal 2, a first server 3, a second server 4, a third server 5, and an authentication server 6.

  The first server 3 is an automatic voice response server that makes a call with the mobile terminal 2. The second server 4 is a front-end server that manages the use of the wireless LAN 15 such as WiFi (Wireless Fidelity) of the mobile terminal 2, and can communicate with the first server 3. The third server 5 is an HLR (Home Location Register) that stores the telephone number of the mobile terminal 2 that is internationally roamed in the mobile phone network 14, and is arranged in the mobile phone network 14. The exchange 7 is a communication device that configures a communication line by switching connections between transmission paths in many-to-many telecommunications, and is disposed in the mobile phone network 14. The authentication server 6 is a server that manages an ID and a password for connecting the mobile terminal 2 to the wireless LAN, and is disposed in the wireless LAN 15.

  First, the mobile terminal 2 transmits a connection request for requesting connection to the wireless LAN 15 to the second server 4. When the connection to the wireless LAN 15 is requested from the mobile terminal 2, the second server 4 transmits an access method to the first server 3 to the mobile terminal 2 (1). In the first embodiment, the access method to the first server 3 is a call from the portable terminal 2 to the first server 3 by a predetermined telephone number. The predetermined telephone number is a special number for requesting connection to the wireless LAN 15, for example. A special number is a telephone number of a special number (for example, * 1234) whose use is different from that of a normal telephone number. The predetermined telephone number may be, for example, free dial (registered trademark) or navigation dial (registered trademark). Next, the mobile terminal 2 performs communication by the access method to the first server 3 received from the second server 4, that is, makes a call to the first server 3 using a special number (2).

  Next, when the exchange 7 receives a special number call from the mobile terminal 2, the telephone number of the mobile terminal 2 is stored in the third server 5 as the telephone number of the mobile terminal 2 internationally roaming on the mobile phone network 14. A determination request for requesting determination as to whether or not the request has been made is transmitted to the third server 5. The third server 5 sends to the exchange 7 a determination result indicating whether or not the telephone number of the portable terminal 2 is stored in the third server 5 as the telephone number of the portable terminal 2 that is internationally roamed on the portable telephone network 14. Transmit (3). The exchange 7 determines whether or not the mobile terminal 2 is internationally roamed to the mobile phone network 14 based on the determination result received from the third server 5. When it is determined that the mobile terminal 2 is internationally roamed to the mobile phone network 14, the exchange 7 relays the call originating from the mobile terminal 2 using the special number to the first server 3 (4). When the first server 3 receives the call by the special number relayed by the exchange 7, the first server 3 considers that the condition that the mobile terminal 2 is roaming to the mobile phone network 14 is satisfied, and together with the telephone number of the mobile terminal 2 A password generation request is transmitted to the second server 4 (5). As described above, the first server 3 transmits a password generation request to the second server 4 together with the telephone number of the mobile terminal 2 on the condition that the mobile terminal 2 is roamed to the mobile phone network 14.

  Next, when the second server 4 receives the telephone number and password generation request of the portable terminal 2 from the first server 3, the second server 4 generates a password corresponding to the telephone number of the portable terminal 2, and uses the generated password as the first server. (6).

  Next, the first server 3 notifies the portable terminal 2 by voice of the password received from the second server 4 via the exchange 7 (7). As described above, in the first embodiment, the second server 4 transmits a password for permitting connection to the wireless LAN 15 to the portable terminal 2 via the first server 3, so that the wireless by the portable terminal 2 is performed. A password for permitting connection to the LAN 15 is validated.

  Next, the portable terminal 2 transmits a login request to the wireless LAN 15 to the second server 4 together with the telephone number of the portable terminal 2 and the received password (8).

  Next, when receiving the login request, the second server 4 authenticates the portable terminal 2 using the telephone number and password, and when the authentication is successful, registers the telephone number and password in the authentication server 6 (9 ). Thereby, thereafter, the mobile terminal 2 can connect to the wireless LAN 15 using the telephone number and password registered in the authentication server 6.

  As described above, the communication system 1 permits the mobile terminal 2 to connect to the wireless LAN 15 on the condition that the mobile terminal 2 is internationally roamed to the mobile phone network 14. The mobile terminal 2 that is internationally roaming to the mobile phone network 14 can easily use the wireless LAN simply by making a call using the special number notified from the second server 4.

  The description of FIG. 1 described above is merely an explanation for deepening the understanding of the contents of the present invention. Specifically, the present invention may be implemented in various embodiments described below, and may be implemented in various modifications without substantially exceeding the principle of the present invention. All such variations are within the scope of the present disclosure and the specification.

  FIG. 2 is a diagram illustrating an example of a schematic configuration of the communication system 1.

  The communication system 1 includes a mobile terminal 2, a first server 3, and a second server 4. Further, the communication system 1 includes a mobile phone network 14, a wireless LAN 15, the Internet 16, a first communication network 17, a second communication network 18, and a third communication network 19. The cellular phone network 14 includes a third server 5, an exchange 7, a first gateway 9, and a base station 12. The wireless LAN 15 includes an authentication server 6, an access point controller 8, a second gateway 10, a third gateway 11, and an access point 13. The first communication network is a network that relays communication, for example, a telephone line network. The second communication network 18 and the third communication network 19 are networks that relay communication, such as the Internet, an intranet, or a dedicated line.

  The first server 3 is connected to the mobile phone network 14 via the first communication network 17 and further connected to the third server 5 via the first gateway 9 and the exchange 7. The mobile terminal 2 is connected to the first server 3 via the base station 12, the exchange 7, the first gateway 9 and the first communication network 17.

  The second server 4 is connected to the wireless LAN 15 via the third communication network 19 and further connected to the authentication server 6 via the second gateway 10 and the access point controller 8. The access point 13 performs wireless communication with the mobile terminal 2 according to the wireless LAN communication method. The access point controller 8 manages the access point 13. The mobile terminal 2 is connected to the second server 4 via the access point 13, the access point controller 8, the second gateway 10, and the third communication network 19. Further, the wireless LAN 15 is connected to the Internet 16 via the third gateway 11. The first server 3 is connected to the second server 4 via the second communication network 18.

  The authentication server 6 is, for example, a Radius server. The mobile terminal 2 can connect to the Internet 16 via the wireless LAN 15 and the third gateway 11 by using the identification information and password registered in the authentication server 6.

  FIG. 3 is a diagram illustrating an example of a schematic configuration of the mobile terminal 2.

  The mobile terminal 2 is a communication device having a mobile phone communication function and a wireless LAN communication function, and is, for example, a mobile phone, a personal digital assistant (PDA), a tablet PC (Personal Computer), or the like. The mobile terminal 2 includes a wireless LAN communication unit 21, a mobile phone communication unit 22, a terminal storage unit 23, an operation unit 24, a display unit 25, and a terminal control unit 27.

  The wireless LAN communication unit 21 has a communication interface circuit mainly including an antenna having a sensitivity band of 2.4 GHz band, 5 GHz band, etc., and is connected to the access point 13 by the IEEE (The Institute of Electrical and Electronics Engineers). , Inc.) Wireless communication is performed based on the 802.11 standard wireless communication system. Then, the wireless LAN communication unit 21 gives the data received from the access point 13 to the terminal control unit 27. In addition, the wireless LAN communication unit 21 transmits the data given from the terminal control unit 27 to the access point 13.

  The mobile phone communication unit 22 has a communication interface circuit including an antenna whose sensitivity band is mainly 2.1 GHz band, and connects the mobile terminal 2 to the mobile phone network 14. The cellular phone communication unit 22 establishes a radio signal line by a CDMA (Code Division Multiple Access) method or the like with the base station 12 via a channel assigned by the base station 12 and communicates with the base station 12. I do. Then, the cellular phone communication unit 22 gives the data received from the base station 12 to the terminal control unit 27. In addition, the mobile phone communication unit 22 transmits the data supplied from the terminal control unit 27 to the base station 12.

  The terminal storage unit 23 includes, for example, at least one of a semiconductor memory, a magnetic disk device, and an optical disk device. The terminal storage unit 23 stores a driver program, an operating system program, an application program, data, and the like used for processing by the terminal control unit 27. Each program is stored in a terminal storage unit using a known setup program or the like from a computer-readable portable recording medium such as a CD-ROM (compact disk read only memory) or a DVD-ROM (digital versatile disk read only memory). 23 may be installed.

  Further, the terminal storage unit 23 stores, as data, an ESSID (Extended Service Set Identifier) of the access point 13, identification information of the mobile terminal 2, image data, and the like. The identification information of the portable terminal 2 is, for example, a telephone number of the portable terminal 2, a terminal ID assigned to each terminal, a SIM (Subscriber Identity Module) card ID, and the like. Furthermore, the terminal storage unit 23 may temporarily store temporary data related to a predetermined process.

  The operation unit 24 may be any device as long as the operation of the mobile terminal 2 is possible, for example, a touch pad, a keyboard, or the like. The user can input characters, numbers, and the like using this device. When operated by the user, the operation unit 24 generates a signal corresponding to the operation. The generated signal is input to the terminal control unit 27 as a user instruction.

  The display unit 25 may be any device as long as it can display images, images, and the like, such as a liquid crystal display, an organic EL (Electro-Luminescence) display, and the like. The display unit 25 displays a video corresponding to the video data supplied from the terminal control unit 27, an image corresponding to the image data, and the like.

  The audio output unit 26 may be any device that can output audio, such as a speaker. The audio output unit 26 outputs audio corresponding to the audio data supplied from the terminal control unit 27.

  The terminal control unit 27 has one or a plurality of processors and their peripheral circuits. The terminal control unit 27 controls the overall operation of the mobile terminal 2 and is, for example, a CPU (Central Processing Unit). The terminal control unit 27 includes a wireless LAN communication unit 21, a portable unit so that various processes of the portable terminal 2 are executed according to a program stored in the terminal storage unit 23, an operation of the operation unit 24, and the like. Controls the operations of the telephone communication unit 22, the display unit 25, and the like. The terminal control unit 27 executes processing based on programs (driver program, operating system program, application program, etc.) stored in the terminal storage unit 23. Further, the terminal control unit 27 can execute a plurality of programs (such as application programs) in parallel.

  The terminal control unit 27 includes a processing unit 271. The processing unit 271 is a functional module implemented by a program executed on the processor included in the terminal control unit 27. The processing unit 271 may be mounted on the portable terminal 2 as an independent integrated circuit, a microprocessor, or firmware.

  FIG. 4 is a diagram illustrating an example of a schematic configuration of the first server 3.

  The first server 3 is, for example, an automatic voice response server that makes a call with the mobile terminal 2. The first server 3 includes a first server communication unit 31, a first server voice communication unit 32, a first server storage unit 33, and a first server control unit 34.

  The first server communication unit 31 includes a communication interface circuit for connecting the first server 3 to the second communication network 18, and performs communication with the second communication network 18. The first server communication unit 31 includes a wired LAN interface circuit such as Ethernet (registered trademark), for example, and performs wired communication with the second communication network 18. The first server communication unit 31 supplies data received from the second server 4, the third server 5, and the like to the first server control unit 34. The first server communication unit 31 transmits the data supplied from the first server control unit 34 to the second server 4, the third server 5, and the like.

  The first server voice communication unit 32 includes a communication interface circuit for connecting the first server 3 to the first communication network 17 and performing communication using a telephone line, and the first server 3 is connected to the first communication network. The mobile phone 14 is connected to the mobile phone network 14. The first server voice communication unit 32 supplies data received from the mobile terminal 2 via the mobile phone network 14 to the first server control unit 34. In addition, the first server voice communication unit 32 transmits the data supplied from the first server control unit 34 to the mobile terminal 2 or the like via the mobile phone network 14.

  The first server storage unit 33 includes, for example, at least one of a magnetic tape device, a magnetic disk device, and an optical disk device. The first server storage unit 33 stores an operating system program, a driver program, an application program, data, and the like used for processing in the first server control unit 34. Each program may be installed in the first server storage unit 33 using a known setup program or the like from a computer-readable portable recording medium such as a CD-ROM or a DVD-ROM.

  In addition, the first server storage unit 33 stores, as data, a special number in the mobile phone network 14 that is transmitted when the mobile terminal 2 requests use of each wireless LAN 15. Further, the first server storage unit 33 may temporarily store temporary data related to a predetermined process.

  The first server control unit 34 includes one or a plurality of processors and their peripheral circuits. The first server control unit 34 comprehensively controls the overall operation of the first server 3 and is, for example, a CPU. The first server control unit 34 includes the first server communication unit 31, the first server 3, and the like so that various processes of the first server 3 are executed in an appropriate procedure according to a program stored in the first server storage unit 33. The operation of the one-server voice communication unit 32 is controlled. The first server control unit 34 executes processing based on programs (operating system program, driver program, application program, etc.) stored in the first server storage unit 33. The first server control unit 34 can execute a plurality of programs (such as application programs) in parallel.

  The first server control unit 34 includes a first control unit 341 and a first transmission unit 342. Each of these units included in the first server control unit 34 is a functional module implemented by a program executed on a processor included in the first server control unit 34. Alternatively, these units included in the first server control unit 34 may be mounted on the first server control unit 34 as independent integrated circuits, microprocessors, or firmware.

  FIG. 5A is a diagram illustrating an example of a schematic configuration of the second server 4.

  The second server 4 is, for example, a front end server that manages the connection of the mobile terminal 2 to the wireless LAN 15. The second server 4 includes a second server communication unit 41, a second server storage unit 42, and a second server control unit 43.

  The second server communication unit 41 includes a communication interface circuit for connecting the second server 4 to the second communication network 18, and performs communication with the second communication network 18. Further, the second server communication unit 41 includes a communication interface circuit for connecting the second server 4 to the third communication network 19, and performs communication with the third communication network 19. The second server communication unit 41 supplies data received from the mobile terminal 2 or the like to the second server control unit 43. In addition, the second server communication unit 41 transmits the data supplied from the second server control unit 43 to the mobile terminal 2 or the like.

  The second server storage unit 42 includes, for example, at least one of a magnetic tape device, a magnetic disk device, and an optical disk device. The second server storage unit 42 stores an operating system program, a driver program, an application program, data, and the like that are used for processing in the second server control unit 43. Each program may be installed in the second server storage unit 42 using a known setup program or the like from a computer-readable portable recording medium such as a CD-ROM or DVD-ROM.

  Moreover, the 2nd server memory | storage part 42 memorize | stores an authentication information table (FIG.5 (b)) etc. as data. Further, the second server storage unit 42 stores a special number in the cellular phone network 14 for requesting connection to the wireless LAN 15 as data. Further, the second server storage unit 42 may temporarily store temporary data related to a predetermined process.

  FIG. 5B is a diagram illustrating an example of the data structure of the authentication information table.

  The authentication information table temporarily stores the country code, each domestic code, a password, and the like of the mobile terminal 2 that is requesting connection to the wireless LAN 15. The country code is a number for identifying a country required for making an international call. Each domestic number is a telephone number used in each country. Here, it is assumed that the user is from various countries. Accordingly, in order to uniquely identify each country's telephone number used by the user without being duplicated, the telephone number is obtained by adding each domestic number to the country code. Note that the telephone number is not limited to this, and may be any number as long as the telephone number of each country used by the user is uniquely identified without duplication.

  The second server control unit 43 includes one or a plurality of processors and their peripheral circuits. The second server control unit 43 controls the overall operation of the second server 4 and is, for example, a CPU. The second server control unit 43 includes a second server communication unit 41 and the like so that various processes of the second server 4 are executed in an appropriate procedure according to a program stored in the second server storage unit 42. Control the behavior. The second server control unit 43 executes processing based on programs (operating system program, driver program, application program, etc.) stored in the second server storage unit 42. The second server control unit 43 can execute a plurality of programs (application programs and the like) in parallel.

  The second server control unit 43 includes a second transmission unit 431 and a second control unit 432. Each of these units included in the second server control unit 43 is a functional module implemented by a program executed on a processor included in the second server control unit 43. Alternatively, these units included in the second server control unit 43 may be implemented in the second server control unit 43 as independent integrated circuits, microprocessors, or firmware.

  FIG. 6A is a diagram illustrating an example of a schematic configuration of the third server 5.

  The third server 5 is, for example, an HLR that stores a telephone number of a mobile terminal that is internationally roamed in the mobile phone network 14. The third server 5 includes a third server communication unit 51, a third server storage unit 52, and a third server control unit 53.

  The third server communication unit 51 includes a communication interface circuit for connecting the third server 5 to the exchange 7 and performs communication with the first server 3 via the exchange 7. The third server communication unit 51 supplies data received from the first server 3 or the like to the third server control unit 53. The third server communication unit 51 transmits the data supplied from the third server control unit 53 to the first server 3 and the like.

  The third server storage unit 52 includes, for example, at least one of a magnetic tape device, a magnetic disk device, and an optical disk device. The third server storage unit 52 stores an operating system program, a driver program, an application program, data, and the like that are used for processing in the third server control unit 53. Each program may be installed in the third server storage unit 52 using a known setup program or the like from a computer-readable portable recording medium such as a CD-ROM or DVD-ROM. Moreover, the 3rd server memory | storage part 52 memorize | stores a roaming management table (FIG.6 (b)) etc. as data. Further, the third server storage unit 52 stores the telephone number of the subscriber of the mobile phone network 14 as data. Furthermore, the third server storage unit 52 may temporarily store temporary data related to a predetermined process.

  FIG. 6B is a diagram illustrating an example of the data structure of the roaming management table.

  The roaming management table stores, for each mobile terminal that is internationally roamed on the mobile phone network 14, the country code of each mobile terminal, each domestic number, an international roaming number, an international roaming flag, and the like. The international roaming number is a telephone number that is temporarily assigned for incoming processing of a mobile phone when the mobile terminal 2 is internationally roamed to the mobile phone network 14. The international roaming flag is a flag indicating whether or not the mobile terminal 2 is internationally roamed by the mobile phone network 14. That is, the international roaming flag is “True” when the mobile terminal 2 is internationally roamed to the mobile phone network 14, and is “False” when the mobile terminal 2 is not internationally roamed to the mobile phone network 14. It is.

  The third server control unit 53 includes one or a plurality of processors and their peripheral circuits. The third server control unit 53 controls the overall operation of the third server 5 in an integrated manner, and is, for example, a CPU. The third server control unit 53 includes a third server communication unit 51 and the like so that various processes of the third server 5 are executed in an appropriate procedure according to a program stored in the third server storage unit 52. Control the behavior. The third server control unit 53 executes processing based on programs (operating system program, driver program, application program, etc.) stored in the third server storage unit 52. The third server control unit 53 can execute a plurality of programs (such as application programs) in parallel.

  The third server control unit 53 includes a processing unit 531. The processing unit 531 is a functional module implemented by a program executed on the processor included in the third server control unit 53. The processing unit 531 may be mounted on the third server control unit 53 as an independent integrated circuit, microprocessor, or firmware.

  When the processing unit 531 receives the location registration request from the mobile terminal 2 via the third server communication unit 51, the processing unit 531 specifies the telephone number of the mobile terminal 2 included in the received location registration request, and the specified telephone number is 3. It is determined whether or not it is included in the telephone number of the subscriber stored in the server storage unit 52. When the identified telephone number is not included in the subscriber's telephone number, the processing unit 531 determines that the mobile terminal 2 is internationally roaming to the mobile telephone network 14 and stores the telephone number of the mobile terminal 2 in the roaming management table. Is registered, an international roaming number is assigned, and “True” is stored as an international roaming flag.

  FIG. 7 is a diagram illustrating an example of an operation sequence of the communication system 1.

  The operation sequence described below is mainly based on programs stored in advance in the terminal storage unit 23, the first server storage unit 33, the second server storage unit 42, and the third server storage unit 52. With the control unit 27, the first server control unit 34, the second server control unit 43, and the third server control unit 53, each element of the mobile terminal 2, the first server 3, the second server 4, and the third server 5 Performed in collaboration.

  First, the processing unit 271 of the mobile terminal 2 displays, on the display unit 25, an ESSID list screen that shows a list of ESSIDs related to the wireless LAN 15 with which the mobile terminal 2 can perform wireless communication in accordance with an instruction from the user using the operation unit 24. (Step S100). The processing unit 271 receives, via the wireless LAN communication unit 21, a beacon frame periodically transmitted by each access point that is arranged in the wireless LAN 15 and capable of wireless communication with the mobile terminal 2, and is included in each received beacon frame Each ESSID to be displayed is listed.

  Next, when a specific ESSID is selected by the user using the operation unit 24, the processing unit 271 sends a connection request for requesting connection to the wireless LAN 15 corresponding to the selected ESSID to the wireless LAN communication unit 21. Via the access point 13 corresponding to the selected ESSID (step S101). When the access point 13 receives the connection request from the mobile terminal 2, the access point 13 transfers the received connection request to the second server 4.

  FIG. 12A shows an example of an ESSID list screen.

  In the ESSID list screen illustrated in FIG. 12A, “0000B-FREE” 1200 and “0002B” 1201 are displayed as ESSIDs of the wireless LAN 15 capable of wireless communication with the mobile terminal 2. When “0000B-FREE” 1200 is selected by the user, the processing unit 271 transmits a connection request for requesting connection to the wireless LAN 15 corresponding to the selected “0000B-FREE” 1200.

  When the second transmission unit 431 of the second server 4 receives a connection request from the mobile terminal 2 via the second server communication unit 41, the second transmission unit 431 transmits an access method to the first server 3 to the mobile terminal 2 ( Step S102). The second transmission unit 431 reads a special number for requesting connection to the wireless LAN 15 from the second server storage unit 42, selects the mobile phone network 14 as a roaming destination network, and transmits by the read special number. Specify as an access method.

  When receiving the access method from the second server 4 via the wireless LAN communication unit 21, the processing unit 271 of the portable terminal 2 displays an access method screen indicating the received access method on the display unit 25 (step S <b> 103).

  FIG. 12B is a diagram illustrating an example of an access method screen.

  The access method screen shown in FIG. 12B displays an instruction 1210 for acquiring a password, an instruction 1211 for selecting the mobile phone network 14 as a roaming destination network, and an instruction 1212 for calling a specified special number. Yes. As a result, the second server 4 instructs the user of the mobile terminal 2 to first select the mobile phone network 14 as the roaming destination network and place a call to the designated special number.

  The processing unit 271 displays a network selection screen for selecting a roaming destination network in accordance with an instruction from the user using the operation unit 24. When the user selects a specific network on the network selection screen using the operation unit 24 by the user, the processing unit 271 sets the selected network as a roaming destination network (step S104).

  FIG. 12C is a diagram illustrating an example of the network selection screen.

  On the network selection screen shown in FIG. 12 (c), a list of mobile phone networks of businesses that the business of the mobile terminal 2 has a business alliance for international roaming is displayed in a selectable manner. When a check mark 1220 is added to one of the displayed mobile phone networks using the operation unit 24, the mobile phone network is set as a roaming destination network.

  Next, when the user of the mobile terminal 2 is instructed to make a call using a special number using the operation unit 24, the processing unit 271 uses the mobile phone communication unit 22 as communication by the access method designated by the second server 4. Via the special number to the first server 3 (step S105). This transmission is performed toward the mobile phone network 14 set as a roaming destination network.

  When the exchange 7 receives a call with a special number from the mobile terminal 2, the exchange 7 acquires the telephone number of the mobile terminal 2 by notifying the caller number. Next, the exchange 7 requests a determination request for determining whether or not the telephone number of the portable terminal 2 is stored in the third server 5 as the telephone number of the portable terminal 2 that is internationally roamed on the portable telephone network 14. Is transmitted to the third server 5 (step S106). The determination request includes the telephone number of the mobile terminal 2.

  Next, when receiving the determination request from the exchange 7 via the third server communication unit 51, the processing unit 531 of the third server 5 extracts the telephone number of the mobile terminal 2 included in the determination request. The processing unit 531 determines whether the mobile phone 2 is roamed internationally by the mobile phone network 14 depending on whether or not the international roaming flag corresponding to the phone number of the mobile device 2 is “True” in the roaming management table. It is determined whether it is stored in the third server 5 as the telephone number of the terminal 2 (step S107). Next, the processing unit 531 displays a determination result indicating whether or not the telephone number of the portable terminal 2 is stored in the third server 5 as the telephone number of the portable terminal 2 that is internationally roamed on the portable telephone network 14. The data is transmitted to the exchange 7 via the three-server communication unit 51 (step S108).

  When receiving the determination result from the third server 5, the exchange 7 determines whether or not the mobile terminal 2 is internationally roamed to the mobile phone network 14 based on the received determination result. When the telephone number of the portable terminal 2 is stored in the third server 5 as the telephone number of the portable terminal 2 that is internationally roamed in the portable telephone network 14, the exchange 7 can perform the international roaming in the portable telephone network. It is determined that On the other hand, when the telephone number of the portable terminal 2 is not stored in the third server 5 as the telephone number of the portable terminal 2 that is internationally roamed in the portable telephone network 14, the exchange 7 It is determined that the terminal is a mobile terminal of a subscriber who has contracted with the other company and is not international roaming. The telephone number notified by the caller ID notification cannot be spoofed, and traceability of the caller is ensured, so that the security of the identity authentication is guaranteed.

  When it is determined that the mobile terminal 2 is not internationally roamed, the exchange 7 notifies the mobile terminal 2 by voice via the first server voice communication unit 32 that the mobile terminal 2 is not internationally roamed. When the processing unit 271 of the mobile terminal 2 receives that the mobile terminal 2 is not internationally roamed from the exchange 7 via the mobile phone communication unit 22, the processing unit 271 outputs that fact to the audio output unit 26 by voice.

  On the other hand, when it is determined that the mobile terminal 2 is internationally roamed, the exchange 7 relays the outgoing call by the special number from the mobile terminal 2 to the first server (step S109). That is, only when it is determined that the mobile terminal 2 is internationally roamed, the exchange 7 relays the outgoing call by the special number from the mobile terminal 2 to the first server. When the first control unit 341 of the first server 3 receives a call with a special number relayed by the exchange 7 via the first server voice communication unit 32, the mobile terminal 2 is roamed to the mobile phone network 14. Assuming that the conditions are satisfied, a password generation request is transmitted to the second server 4 through the first server communication unit 31 together with the telephone number of the portable terminal 2 (step S110).

  When the second control unit 432 of the second server 4 receives the phone number and password generation request of the mobile terminal 2 from the first server 3 via the second server communication unit 41, the password corresponding to the phone number of the mobile terminal 2 Is generated (step S111). Next, the second control unit 432 stores the telephone number of the mobile terminal 2 and the generated password in the authentication information table (step S112). Next, the second control unit 432 transmits the generated password to the first server 3 via the second server communication unit 41 (step S113).

  When the first transmission unit 342 of the first server 3 receives the password from the second server 4 via the first server communication unit 31, the first transmission unit 342 carries the received password via the first server voice communication unit 32 and the exchange 7. The terminal 2 is notified by voice (step S114). The processing unit 271 of the portable terminal 2 outputs the notified password to the voice output unit 26 by voice. As described above, the second server 4 transmits a password for permitting connection to the wireless LAN 15 to the portable terminal 2 via the first server 3, thereby permitting the connection to the wireless LAN 15 by the portable terminal 2. Enable password for

  Next, the mobile terminal 2 sends a login request to the wireless LAN 15 together with the telephone number of the mobile terminal 2 and the received password according to the operation by the user using the operation unit 24 via the wireless LAN communication unit 21. (Step S115).

  When the second transmission unit 431 of the second server 4 receives the telephone number, password, and login request from the portable terminal 2 via the second server communication unit 41, the telephone stored in the received telephone number, password, and authentication information table The mobile terminal 2 is authenticated based on whether the number and the password match (step S116). If the authentication of the portable terminal 2 is successful, the second control unit 432 transmits a request for registration of the telephone number and password that have been successfully authenticated to the authentication server 6 via the second server communication unit 41 (step S117). Also, the second control unit 432 deletes the telephone number and password from the authentication information table. Upon receiving a telephone number and password registration request from the second server 4, the authentication server 6 registers the telephone number and password and validates them for a predetermined period (for example, two weeks).

  While the telephone number and password are validated in the authentication server 6, the portable terminal 2 can connect to the Internet 16 using the telephone number and password of the portable terminal 2.

  As described above, the communication system 1 allows the mobile terminal 2 to internationally roam to the mobile phone network 14 to permit connection to the wireless LAN 15 when the mobile terminal 2 is internationally roamed to the mobile phone network 14. The second user can easily use the wireless LAN 15 simply by making a call using the special number notified from the second server 4.

  In addition, since a user who desires connection to the wireless LAN 15 preferentially performs international roaming to the mobile phone network 14, operators of the mobile phone network 14 can increase the number of international roaming users. .

(Second Embodiment)
FIG. 8 is a schematic diagram for explaining the outline of the communication system 1 in the second embodiment. The configuration of the communication system 1 in the second embodiment is the same as the configuration of the communication system 1 in the first embodiment.

  First, the mobile terminal 2 transmits a connection request to the second server 4, and transmits the telephone number of the mobile terminal 2 to the second server in response to the acquisition request of the mobile terminal 2 from the second server 4. (1). The second server 4 generates a password corresponding to the received telephone number, and transmits the received telephone number and the generated password to the portable terminal 2 together with the method of accessing the first server 3 (2). In the second embodiment, as in the first embodiment, the access method to the first server 3 is a call from the mobile terminal 2 to the first server 3 using a special number. Next, the mobile terminal 2 makes a call to the first server 3 using a special number (3).

  Next, when the exchange 7 receives a special number from the mobile terminal 2, the exchange 7 transmits a determination request to the third server 5, and the third server 5 transmits the determination result to the first server 3 (4). The exchange 7 determines whether or not the mobile terminal 2 is internationally roamed to the mobile phone network 14 based on the determination result received from the third server 5. When it is determined that the mobile terminal 2 is internationally roamed to the mobile phone network 14, the exchange 7 relays the call originated by the special number from the mobile terminal 2 to the first server 3 (5).

  Next, when the first server 3 receives a call with a special number relayed by the exchange 7, the first server 3 regards that the condition that the mobile terminal 2 is roaming to the mobile phone network 14 is satisfied, and A verification request for requesting verification of the telephone number is transmitted to the second server 4 together with the telephone number (6).

  When the second server 4 receives the telephone number of the portable terminal 2 and the verification request from the first server 3, the second server 4 receives the telephone number of the portable terminal 2 received from the first server 3 and the telephone received from the portable terminal 2. Match numbers. When the telephone number of the portable terminal 2 received from the first server 3 matches the telephone number received from the portable terminal 2 and the second server 4 has succeeded in collating the telephone number, the second server 4 and the portable terminal The password transmitted together with the access method is registered in the authentication server 6 and the password is validated (7). Next, the second server 4 transmits the comparison result of the telephone number to the first server 3 (8).

  Next, the first server 3 notifies the portable terminal 2 by voice of the comparison result of the telephone number via the exchange 7 (9). When the first server 3 succeeds in collating the telephone number, the first server 3 notifies the portable terminal 2 by voice that the password transmitted to the portable terminal 2 has been validated. Thereby, thereafter, the mobile terminal 2 can connect to the wireless LAN 15 using the telephone number and password registered in the authentication server 6.

  Also in the second embodiment, similarly to the first embodiment, the mobile terminal 2 that is internationally roaming to the mobile phone network can easily make a wireless LAN 15 only by calling the special number notified from the second server 4. Will be able to use.

  FIG. 9 is a diagram illustrating an example of an operation sequence of the communication system 1 in the second embodiment.

  The operation sequence described below is mainly based on programs stored in advance in the terminal storage unit 23, the first server storage unit 33, the second server storage unit 42, and the third server storage unit 52. With the control unit 27, the first server control unit 34, the second server control unit 43, and the third server control unit 53, each element of the mobile terminal 2, the first server 3, the second server 4, and the third server 5 Performed in collaboration.

  Steps S200 to 201 and S209 to 214 in FIG. 9 are the same as steps S100 to 101 and S104 to 109 in FIG. 7, and thus the description thereof will be omitted. Steps S202 to S208 and S215 to S219 will be described below.

  When the second transmission unit 431 of the second server 4 receives a connection request from the portable terminal 2 via the second server communication unit 41, the second transmission unit 431 sends a request for acquiring the telephone number of the portable terminal 2 via the second server communication unit 41. To the portable terminal 2 (step S202). Note that the second transmission unit 431 may transmit data for displaying a telephone number input screen for allowing the user to input the telephone number of the mobile terminal 2 as a telephone number acquisition request.

  When the processing unit 271 of the portable terminal 2 receives a telephone number acquisition request from the second server 4 via the wireless LAN communication unit 21, the processing unit 271 displays a telephone number input screen on the display unit 25 (step S203). When a telephone number is input by the user using the operation unit 24, the processing unit 271 transmits the input telephone number to the second server 4 via the wireless LAN communication unit 21 (step S204).

  FIG. 13A shows an example of a telephone number input screen.

  In FIG. 13A, a telephone number input form 1300 and an ID / password acquisition button 1301 are displayed. When the user inputs a telephone number into the telephone number input form 1300 using the operation unit 24 and presses the ID / password acquisition button 1301, the input telephone number is transmitted to the second server 4.

  When the second control unit 432 of the second server 4 receives the telephone number from the portable terminal 2 via the second server communication unit 41, the second control unit 432 generates a password corresponding to the received telephone number (step S205). Next, the second control unit 432 stores the telephone number and password in the authentication information table (step S206). This telephone number is used as identification information of the portable terminal 2. Next, the 2nd transmission part 431 transmits the received telephone number and the produced | generated password with the access method to the 1st server 3 with respect to the portable terminal 2 (step S207). The access method to the first server 3 is the same as in the first embodiment.

  When receiving the access method from the second server 4 via the wireless LAN communication unit 21, the processing unit 271 of the portable terminal 2 displays an access method screen indicating the received access method on the display unit 25 (step S208).

  FIG. 13B is a diagram illustrating an example of the access method screen.

  On the access method screen shown in FIG. 13B, an instruction 1310 for acquiring a password, an instruction 1311 for selecting the mobile phone network 14 as a roaming destination network, and an instruction 1312 for calling a designated special number are displayed. Further, the telephone number and password received from the second server 4 are displayed as the ID / password 1313. Thereby, the user of the portable terminal 2 can recognize the usable ID / password.

  On the other hand, in step S215, the first transmission unit 342 of the first server 3 sends a verification request for requesting verification of the telephone number together with the telephone number of the portable terminal 2 via the second server communication unit 41 to the second server 4. (Step S215).

  When the second control unit 432 of the second server 4 receives the telephone number and the verification request from the first server 3 via the second server communication unit 41, the second control unit 432 stores the telephone number received from the first server 3 and the authentication information table. The stored phone number received from the portable terminal 2 is collated (step S216).

  When the telephone number of the portable terminal 2 received from the first server 3 matches the telephone number received from the portable terminal 2 and the telephone number is successfully verified, the second control unit 432 The password registration request transmitted to the terminal 2 together with the access method is transmitted to the authentication server 6 via the second server communication unit 41 (step S217). Also, the second control unit 432 deletes the telephone number and password from the authentication information table. Upon receiving a telephone number and password registration request from the second server 4, the authentication server 6 registers the telephone number and password and validates them for a predetermined period. On the other hand, if the telephone number of the mobile terminal 2 received from the first server 3 and the telephone number received from the mobile terminal 2 do not match and the telephone number verification fails, the second control unit 432 And password registration.

  Next, the 2nd control part 432 transmits a collation result to the 1st server 3 via the 2nd server communication part 41 (step S218). The second control unit 432 compares the telephone number of the mobile terminal 2 received from the first server 3 with the telephone number received from the mobile terminal 2 and indicates that the verification is successful when the telephone number is successfully verified. The result is transmitted to the first server 3. On the other hand, if the telephone number of the mobile terminal 2 received from the first server 3 and the telephone number received from the mobile terminal 2 do not match and the telephone number verification fails, the second control unit 432 fails Is sent to the first server 3.

  When the first transmission unit 342 of the first server 3 receives the verification result from the second server 4 via the first server communication unit 31, the first transmission unit 342 transmits the verification result to the mobile terminal 2 via the first server voice communication unit 32. (Step S219). When the first transmission unit 342 receives the collation result indicating the collation success, the first transmission unit 342 notifies that the telephone number and the password have been validated, and the processing unit 271 of the portable terminal 2 informs the voice output unit 26 by voice. Output. On the other hand, when the first transmission unit 342 receives a collation result indicating a collation failure, the first transmission unit 342 notifies that the transmitted telephone number does not match the input telephone number, and the processing unit 271 of the mobile terminal 2 does so. Is output to the voice output unit 26 by voice.

  As described above, even when the second server 4 transmits a password together with an access method to the mobile terminal 2 and validates it later, the user of the mobile terminal 2 who is internationally roaming to the mobile phone network 14 The wireless LAN 15 can be easily used simply by making a call using the special number notified from the second server 4.

(Third embodiment)
FIG. 10 is a schematic diagram for explaining the outline of the communication system 1 in the third embodiment. The configuration of the communication system 1 in the third embodiment is the same as the configuration of the communication system 1 in the first embodiment. However, in the communication system 1 in the third embodiment, the first server 3 is a distribution server such as a web server.

  First, the mobile terminal 2 transmits a connection request to the second server 4, and transmits the telephone number of the mobile terminal 2 to the second server in response to the acquisition request of the mobile terminal 2 from the second server 4. (1). The second server 4 generates a password corresponding to the received telephone number, and transmits the received telephone number and the generated password to the portable terminal 2 together with the method of accessing the first server 3 (2). In the third embodiment, the access method to the first server 3 is an access to a predetermined URL corresponding to the first server 3 from the portable terminal 2. Next, the mobile terminal 2 accesses the URL specified in the access method, and in response to a request for obtaining the telephone number of the mobile terminal 2 from the first server 3, the mobile terminal 2 sets the telephone number of the mobile terminal 2 to the first server 3. Transmit (3).

  Next, when the first server 3 receives access to the URL from the mobile terminal 2, the first server 3 transmits a determination request to the third server 5, and the third server 5 transmits a determination result to the first server 3 ( 4). The first server 3 determines whether or not the mobile terminal 2 is internationally roamed to the mobile phone network 14 based on the determination result received from the first server 3. When it is determined that the mobile terminal 2 is internationally roamed to the mobile phone network 14, the first server 3 sends a verification request for requesting verification of the telephone number to the second server 4 together with the telephone number of the mobile terminal 2. Transmit (5). In this way, the first server 3 sends a verification request for requesting verification of the telephone number together with the telephone number of the portable terminal 2 on the condition that the portable terminal 2 is roamed to the cellular phone network 14. Send to.

  When the second server 4 receives the telephone number of the portable terminal 2 and the verification request from the first server 3, the second server 4 receives the telephone number of the portable terminal 2 received from the first server 3 and the telephone received from the portable terminal 2. Match numbers. When the telephone number of the portable terminal 2 received from the first server 3 matches the telephone number received from the portable terminal 2 and the second server 4 has succeeded in collating the telephone number, the second server 4 and the portable terminal The password transmitted together with the access method is registered in the authentication server 6 and the password is validated (6). Next, the second server 4 transmits the telephone number verification result to the first server 3 (7).

  Next, the first server 3 transmits the comparison result of the telephone number to the portable terminal 2 (8). If the verification of the telephone number is successful, the first server 3 transmits to the mobile terminal 2 that the password transmitted to the mobile terminal 2 has been validated. Thereby, thereafter, the mobile terminal 2 can connect to the wireless LAN 15 using the telephone number and password registered in the authentication server 6.

  In the third embodiment, the mobile terminal 2 that is internationally roaming to the mobile phone network can easily use the wireless LAN 15 simply by accessing the URL notified from the second server 4.

  As described above, in the communication system 1 according to the third embodiment, the first server 3 is a distribution server such as a web server, and transmits various types of information according to access to a predetermined URL from the mobile terminal 2. In the third embodiment, a distribution server such as a web server will be described as an example of the first server, but the present invention is not limited to this. Moreover, although the telephone number of a portable terminal is demonstrated as an example of the identification information of a portable terminal, it is not limited to this. The identification information of the portable terminal may be any information as long as it uniquely identifies the portable terminal. For example, the identification information of the portable terminal may be a terminal ID, a SIM card ID of the portable terminal, or the like.

  The second server 4 stores a URL for requesting connection to the wireless LAN 15 as data in the second server storage unit 42. This URL corresponds to the first server 3 and indicates an address for accessing the first server 3.

  FIG. 11 is a diagram illustrating an example of an operation sequence of the communication system 1 according to the third embodiment.

  The operation sequence described below is mainly based on programs stored in advance in the terminal storage unit 23, the first server storage unit 33, the second server storage unit 42, and the third server storage unit 52. With the control unit 27, the first server control unit 34, the second server control unit 43, and the third server control unit 53, each element of the mobile terminal 2, the first server 3, the second server 4, and the third server 5 Performed in collaboration.

  Steps S300 to S306, S309, and S317 to S319 in FIG. 11 are the same operation sequences as Steps S200 to S206, S209, and S216 to S217 in FIG. 9, respectively, and thus the description thereof is omitted. Steps S307 to S308 are described below. S310 to S316 and S320 will be described.

  On the other hand, in step S307, the second transmission unit 431 of the second server 4 transmits the received telephone number and the generated password to the mobile terminal 2 together with the access method to the first server 3 (step S307). The second transmission unit 431 reads the URL for requesting connection to the wireless LAN 15 from the second server storage unit 42, selects the mobile phone network 14 as a roaming destination network, and accesses the read URL. Specify as an access method.

  When receiving the access method from the second server 4 via the wireless LAN communication unit 21, the processing unit 271 of the portable terminal 2 displays an access method screen indicating the received access method on the display unit 25 (step S <b> 308).

  FIG. 14A is a diagram illustrating an example of an access method screen.

  On the access method screen shown in FIG. 14A, an instruction 1400 for acquiring a password, an instruction 1401 for selecting the mobile phone network 14 as a roaming destination network, and an instruction 1402 for accessing the specified URL are displayed. Further, the telephone number and password received from the second server 4 are displayed as the ID / password 1403.

  On the other hand, in step S310, when the user of the mobile terminal 2 uses the operation unit 24 to instruct access to the URL specified in the access method, the processing unit 271 accesses the access specified by the second server 4. As the communication by the method, the URL specified via the mobile phone communication unit 22 is accessed (step S310). This access is performed toward the mobile phone network 14 set as a roaming destination network.

  When the first control unit 341 of the first server 3 receives access to the URL from the mobile terminal 2 via the first server voice communication unit 32, the telephone number request that requests acquisition of the telephone number of the mobile terminal 2 Is transmitted to the portable terminal 2 via the first server voice communication unit 32 (step S311). When the processing unit 271 of the mobile terminal 2 receives the telephone number request from the first server 3 via the mobile phone communication unit 22, the processing unit 271 reads the telephone number of the mobile terminal 2 from the terminal storage unit 23, and uses the read telephone number as the mobile phone. It transmits to the 1st server 3 via the communication part 22 (step S312).

  Next, the first control unit 341 of the first server 3 determines whether or not the telephone number of the mobile terminal 2 is stored in the third server 5 as the telephone number of the mobile terminal 2 that is internationally roamed on the mobile phone network 14. A determination request for requesting such determination is transmitted to the third server 5 (step S313). The determination request includes the telephone number of the mobile terminal 2.

  Next, when receiving the determination request from the first server 3 via the third server communication unit 51, the processing unit 531 of the third server 5 extracts the telephone number of the mobile terminal 2 included in the determination request. The processing unit 531 determines whether the mobile phone 2 is roamed internationally by the mobile phone network 14 depending on whether or not the international roaming flag corresponding to the phone number of the mobile device 2 is “True” in the roaming management table. It is determined whether it is stored in the third server 5 as the telephone number of the terminal 2 (step S314). Next, the processing unit 531 displays a determination result indicating whether or not the telephone number of the portable terminal 2 is stored in the third server 5 as the telephone number of the portable terminal 2 that is internationally roamed on the portable telephone network 14. It transmits to the 1st server 3 via the 3 server communication part 51 (step S315).

  When receiving the determination result from the third server 5, the first control unit 341 of the first server 3 determines whether the mobile terminal 2 is internationally roamed to the mobile phone network 14 based on the received determination result. When the telephone number of the mobile terminal 2 is stored in the third server 5 as the telephone number of the mobile terminal 2 that is internationally roamed in the mobile telephone network 14, the first control unit 341 14 is determined to be international roaming. On the other hand, if the telephone number of the portable terminal 2 is not stored in the third server 5 as the telephone number of the portable terminal 2 that is internationally roamed on the portable telephone network 14, the first control unit 341 It is determined that the mobile terminal of the subscriber who has a contract with the operator of the telephone network 14 is not international roaming.

  When it is determined that the mobile terminal 2 is not internationally roamed, the first control unit 341 transmits to the mobile terminal 2 via the first server voice communication unit 32 that the mobile terminal 2 is not internationally roamed. When the processing unit 271 of the mobile terminal 2 receives from the first server 3 that the mobile terminal 2 is not internationally roamed via the mobile phone communication unit 22, the processing unit 271 outputs that fact (not shown) to the display unit 25.

  On the other hand, when it is determined that the mobile terminal 2 is internationally roamed, the first transmission unit 342 sends a verification request for requesting verification of the telephone number together with the telephone number of the mobile terminal 2 to the second server communication unit 41. To the second server 4 (step S316). This telephone number is verified by the second server 4 and registered in the authentication server 6.

  On the other hand, when the first transmission unit 342 of the first server 3 receives the collation result from the second server 4 via the first server communication unit 31 in step S320, the collation result is transmitted via the first server voice communication unit 32. Is transmitted to the portable terminal 2 (step S320). The processing unit 271 of the portable terminal 2 displays a verification result screen indicating the received verification result on the display unit 25.

  FIG. 14B is a diagram illustrating an example of a collation result screen when collation fails.

  On the collation result screen shown in FIG. 14B, a message 1410 indicating that the read telephone number does not match the input telephone number is displayed.

  FIG. 14C is a diagram illustrating an example of a collation result screen when collation is successful.

  On the collation result screen shown in FIG. 14C, a message 1420 indicating that the telephone number and password have been validated is displayed.

  As described above, in the third embodiment, the user of the mobile terminal 2 that is internationally roaming to the mobile phone network 14 can easily access the URL notified from the second server 4 and easily access the wireless LAN 15. Can be used.

  In the third embodiment, as in the first embodiment, when it is determined that the mobile terminal 2 is roaming to the mobile phone network 14, the second server 4 is carried via the first server 3. A password may be transmitted to the terminal 2.

  In the first to third embodiments, an example in which there is one wireless LAN 15 has been described. However, there are a plurality of wireless LANs with different operators, and the second server 4 and the authentication server 6 are provided for each of the plurality of wireless LANs. May be arranged. In that case, in the first and second embodiments, the special number is set to be different for each of the plurality of wireless LANs. The first server 3 transmits the phone number and password generation request of the mobile terminal 2 to the second server 4 corresponding to the special number transmitted from the mobile terminal. In the third embodiment, the URL is set to be different for each of the plurality of wireless LANs. The first server 3 transmits the phone number and password generation request of the mobile terminal 2 to the second server 4 corresponding to the URL accessed from the mobile terminal. Thus, the present invention can be applied to a plurality of wireless LANs with different operators, and each operator can use the present invention.

  Further, the authentication server 6 may be arranged in the mobile phone network 14 instead of being arranged in the wireless LAN 15. In that case, the authentication server 6 is arranged to be able to communicate with the second communication network 18 or the third communication network 19. The second control unit 432 of the second server 4 transmits a telephone number and password registration request to the authentication server 6 disposed in the mobile phone network 14 via the second communication network 18 or the third communication network 19. Thereby, even when there are a plurality of wireless LANs with different operators, each wireless LAN can share one authentication server 6, and the cost required for the authentication server can be reduced.

  In the first to third embodiments, the first server 3 is not arranged in the cellular phone network 14, but may be arranged in the cellular phone network 14. Similarly, although the second server 4 is not arranged in the wireless LAN 15, it may be arranged in the wireless LAN 15.

  In the first to second embodiments, the exchange 7 determines whether or not the mobile terminal 2 is roamed to the mobile phone network 14, but the first server 3 and the mobile terminal 2 are connected to the mobile phone network 14. It may be determined whether roaming is performed. In that case, the first server 3 requests a determination as to whether or not the telephone number of the portable terminal 2 is stored in the third server 5 as the telephone number of the portable terminal 2 that is internationally roamed on the portable telephone network 14. A determination request is transmitted to the third server 5. The third server 5 displays a determination result indicating whether or not the telephone number of the mobile terminal 2 is stored in the third server 5 as the telephone number of the mobile terminal 2 internationally roamed on the mobile phone network 14. 3 to send. Based on the determination result received from the third server 5, the first server 3 determines whether or not the mobile terminal 2 is internationally roamed to the mobile phone network 14.

  In the communication system 1, the third server 5 is omitted, and the first server 3 determines whether or not the mobile terminal 2 is internationally roamed to the mobile phone network 14 based on information stored in the first server 3. May be. In that case, the first server 3 stores in the first server storage unit 33 the phone numbers of the mobile terminals used by all the subscribers who have contracted with the business of the mobile phone network 14. The first control unit 341 of the first server 3 determines whether or not the telephone number of the portable terminal 2 acquired from the portable terminal 2 is included in the subscriber's telephone number stored in the first server storage unit 33. . When the telephone number of the portable terminal 2 is not included in the subscriber's telephone number, the first control unit 341 determines that the portable terminal 2 is internationally roaming to the portable telephone network 14 and the telephone number of the portable terminal 2 is If it is included in the telephone number of the subscriber, it is determined that the mobile terminal 2 is not international roaming to the mobile phone network 14.

  In the third embodiment, the first server 3 receives access to the URL from the mobile terminal 2 even when the mobile terminal 2 is not internationally roamed to the mobile phone network 14, but the first server 3 Only when the mobile terminal 2 is internationally roamed to the mobile phone network 14, access to the URL from the mobile terminal 2 may be received via a relay server (not shown). In that case, the relay server that has received access to the URL from the mobile terminal 2 determines whether the mobile terminal 2 is internationally roamed to the mobile phone network 14, and the mobile terminal 2 is internationally roamed to the mobile phone network 14. If it is, access to the URL from the mobile terminal 2 is relayed to the first server 3. When the first server 3 receives access to the URL relayed by the relay server, the first server 3 considers that the condition that the mobile terminal 2 is roaming to the mobile phone network 14 is satisfied, and the telephone number of the mobile terminal 2 At the same time, a verification request for verifying the telephone number is transmitted to the second server 4.

  In the first to third embodiments, the mobile terminal 2 can use the wireless LAN 15 when the mobile phone network 14 is internationally roamed. However, the domestic roaming (between domestic operators) Even when roaming is performed, the wireless LAN 15 may be usable. In that case, the portable terminal 2 is identified by a telephone number not including the country code.

  A computer program for causing a computer to realize the functions of the terminal control unit 27, the first server control unit 34, the second server control unit 43, and the third server control unit 53 is a magnetic recording medium or an optical recording medium. The program may be provided in a form stored in a computer-readable recording medium such as a computer.

  It should be understood by those skilled in the art that various changes, substitutions and modifications can be made thereto without departing from the spirit and scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Communication system 2 Portable terminal 3 1st server 341 1st control part 342 1st transmission part 4 2nd server 431 2nd transmission part 432 2nd control part 5 3rd server

Claims (5)

A method for connecting to a wireless LAN by a mobile terminal in a communication system having a first server capable of communicating with a mobile phone network and a second server capable of communicating with a wireless LAN and capable of communicating with the first server,
The second server, when said from the mobile terminal is requested to connect to the wireless LAN, and transmits a transmission via a predetermined telephone number to said first server to said mobile terminal as an access method,
The call from the mobile terminal by the access method is relayed from the mobile terminal to the first server only when the mobile terminal is roamed to the mobile phone network,
Said first server, if by prior Symbol access method has received a call from the mobile terminal, wherein regarded as mobile terminal is condition is satisfied that are roaming in the mobile telephone network, said mobile terminal Sending identification information to the second server;
When the second server receives the identification information of the portable terminal from the first server, validates a password for allowing the portable terminal to connect to the wireless LAN;
The connection method characterized by including this.   The connection method according to claim 1, wherein the validation of the password is that the second server transmits the password to the mobile terminal via the first server.   The connection method according to claim 1, wherein the validation of the password is to validate the password transmitted by the second server to the mobile terminal together with the access method. The wireless LAN there are a plurality, said plurality of wireless LAN every said predetermined telephone number is set, the connection method according to claim 1. A communication system having a first server capable of communicating with a mobile phone network and a second server capable of communicating with a wireless LAN and capable of communicating with the first server,
The second server is
A second transmitter for transmitting to the portable terminal as an access method a call to the first server by a predetermined telephone number when a connection to the wireless LAN is requested from the portable terminal;
A second control unit that validates a password for permitting connection to the wireless LAN by the portable terminal when receiving identification information of the portable terminal from the first server;
The first server is
When a call from the portable terminal is received by the access method, it is considered that the condition that the portable terminal is roamed to the portable telephone network is satisfied, and the identification information of the portable terminal is stored in the second server. and a first transmission unit for transmitting to,
The call from the mobile terminal by the access method is relayed from the mobile terminal to the first server only when the mobile terminal is roaming to the mobile phone network.
A communication system characterized by the above.

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