JP2007013648A - Wireless communication system, communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wireless communication system capable of performing communication via a wireless line other than a wireless telephone line without performing a complicated operation.
When a call is made from a mobile phone 2 to a mobile phone 3, it is determined whether or not connection is possible between the mobile phone 2 and the fixed telephone 4 via a wireless LAN line 111 in advance. When communication with the mobile phone 3 cannot be made via the LAN line 113, a call is made from the mobile phone 2 to the mobile phone 3 through the public telephone line 9 via the fixed phone 4. When the fixed telephone 4 cannot be connected via the wireless LAN line 111, the mobile telephone 3 is communicated through the wireless telephone line.
[Selection] Figure 1

Description

  The present invention relates to a wireless communication system, and more particularly, to a wireless communication system including a communication terminal that is connectable to both a wireless telephone line and a wireless communication line other than the wireless telephone line. The present invention also relates to a communication terminal used in this wireless communication system.

  In recent years, in addition to the conventional wireless telephone function, a portable communication terminal such as a mobile phone or PDA (Personal Digital Assistant) having a function capable of connecting to a wireless communication line other than a wireless telephone line such as a wireless LAN (Local Area Network) Equipment has been developed.

  As a communication system including such a mobile phone that can be connected to a wireless LAN, for example, a system that uses a telephone number and a terminal number of a mobile phone as an authentication code is disclosed (see Patent Document 1). The outline of this system will be described below.

  FIG. 12 is a diagram illustrating a configuration of a network system assumed in Patent Document 1. As illustrated in FIG. The network system 900 includes communication terminal apparatuses 901-1, 901-2,..., 901-n that can be connected to both a wireless telephone line and a wireless LAN line, a wireless LAN 902, and a management connected to the wireless LAN 902. Server 903.

  FIG. 13 is a table showing a configuration of terminal information included in the communication terminal 901-1. The terminal information includes a telephone number and a terminal number that are uniquely given to the communication terminal in advance. The communication terminal devices 901-2,..., 901-n also have terminal information with the same configuration. The terminal number is a unique number for identifying the communication terminal itself.

  The management server 903 is installed to manage communication terminals that can use the wireless LAN. In a database (not shown) provided in the management server 903, the telephone numbers and terminal numbers of the terminal devices that can be used are stored. It is registered.

When configured in this way, first, after a user inputs a predetermined telephone number to connect the communication terminal 901-1 to the management server 903 and is connected to the management server 903 via a wireless telephone line, The telephone number of the communication terminal 901-1 and information on the terminal number are transmitted to the management server 903 for authentication. Then, the management server 903 performs collation with the database. At this time, if a telephone number and a terminal number corresponding to this database exist, the communication terminal 901-1 becomes connectable to the wireless LAN 902.
Japanese Patent Laid-Open No. 11-175477

  However, in the case of the communication system described in Patent Document 1, when using a wireless LAN, it is necessary to perform authentication via a wireless telephone line in order to connect to the management server in advance, which is very troublesome for the user. There is.

  The communication system described in Patent Document 1 is devised for the purpose of transmitting / receiving predetermined information to / from a computer connected to the LAN, for example, by connecting to a wireless LAN. That is, when communication terminals configured to connect to this wireless LAN make a call, the communication is performed using the wireless LAN line after authentication is performed via the wireless telephone line in order to connect to the management server. There must be.

  For example, when the communication terminal A tries to make a call to the communication terminal B using a wireless LAN line, the communication terminal A must connect to the management server and perform authentication in order to connect to the wireless LAN. Even if the authentication is completed, if the communication terminal B that is the call destination is not connected to the wireless LAN, a call cannot be made via the wireless LAN. There may be a case where a call needs to be made via a line. For this reason, when a call is made between communication terminals, it is assumed that a user makes a call via a wireless telephone line by calling a telephone number of a call destination as in a normal mobile phone.

  However, under such a configuration, communication is performed between the communication terminals connected to the wireless LAN via the wireless telephone line, resulting in missed use of the wireless LAN line.

  In view of the above problems, the present invention provides a complicated operation when a user makes a call using a communication terminal in a state where a wireless communication line other than a wireless telephone line such as a wireless LAN line can be used. An object of the present invention is to provide a wireless communication system capable of making a call via a wireless communication line other than the wireless telephone line without performing the above.

  Another object of the present invention is to provide a communication terminal used in the wireless communication system.

  In order to achieve the above object, a wireless communication system according to the present invention includes a first wireless line constituted by a wireless telephone line and a second wireless line constituted by a wireless communication line other than the first wireless line. Other configurations that can be connected and that can be connected to both the first wireless line and the second wireless line or that can be connected to both the second wireless line and the public telephone line A first determination unit that determines whether or not a communication terminal can be connected to the communication terminal via the second wireless line, and the first determination unit is connectable via the second wireless line Connectable to a first communication terminal including a first connectable partner storage unit that registers information of another communication terminal determined to be in a state, a public telephone line, and the second wireless line A second communication terminal having a configuration and at least the first wireless line A third communication terminal that can be connected, and when performing communication between the first communication terminal and the third communication terminal, the third communication terminal stores the third communication in the first connectable partner storage unit. When the terminal is not registered and the second communication terminal is registered, the second communication terminal is relayed from the first communication terminal via the second wireless line, and The second communication terminal is connected to the third communication terminal via a public telephone line and the first wireless line.

  At this time, when the third communication terminal is registered in the first connectable partner storage unit, the second communication is performed between the first communication terminal and the third communication terminal. The connection may be made via a line, or the connection may be made via a first communication line. And it may be configured such that which line is used can be set in advance by the user.

  Also, a wireless line such as a wireless LAN line or Bluetooth (registered trademark) can be used as the second wireless line.

  With this configuration, the user can store the third connection in the first connectable partner storage unit without being aware of which of the first communication line and the second communication line is used. When a communication terminal is registered, a connection is established between the first communication terminal and the third communication terminal via the second communication line, and the first connectable partner storage unit If the third communication terminal is not registered and the second communication terminal is registered, the second communication terminal is connected to the second communication terminal via the second communication line and further from the second communication terminal. A connection is made to the third communication terminal via a public telephone line and the first wireless line, and both the first communication terminal and the third communication terminal are connected to the first connectable partner storage unit. If not registered, via the first communication line Continue to do. That is, the user can provide a communication system that uses the second communication line preferentially as long as the second communication line is available without being aware of which line is used. .

  In addition, for example, the second communication terminal can register in advance a communication terminal that can be used as a slave of the second communication terminal, and the first communication terminal and the third communication terminal can be registered. When communicating with each other, the third communication terminal is not registered in the first connectable partner storage unit and the second communication terminal is registered. When the first communication terminal is registered as a terminal that can be used as a slave of the communication terminal, the second communication terminal is connected from the first communication terminal via the second wireless line. It is also possible to adopt a configuration in which relaying is further performed and the second communication terminal is connected to the third communication terminal via a public telephone line and the first wireless line.

  By being configured in this way, in addition to the condition that it can be connected to the second communication terminal via the second communication line, only the communication terminal having the condition that it can be used as a slave unit, The second communication terminal can be relayed to connect to another terminal using a public telephone line, so that security can be improved.

  In addition, for example, the first wireless line constituted by a wireless telephone line and a second wireless line constituted by a wireless communication line other than the first wireless line can be connected to the first wireless line. Through another communication terminal and the second wireless line that can be connected to both the second wireless line and the second wireless line or the second wireless line and the public telephone line. A first determination unit that determines whether or not a connection is possible, and another communication terminal that is determined by the first determination unit to be connectable via the second wireless line A first communication terminal comprising: a first connectable partner storage unit that registers the information of: a second communication terminal configured to be connectable to a public telephone line and the second wireless line; And a fourth communication terminal connectable to a public telephone line, When performing communication between the first communication terminal and the fourth communication terminal, the fourth communication terminal is not registered in the first connectable partner storage unit, and the second communication terminal Is registered, the first communication terminal relays the second communication terminal via the second wireless line, and further, the second communication terminal transmits the public telephone line via the public telephone line. It may be configured to be connected to the fourth communication terminal.

  Further, for example, the second communication terminal is configured to be able to register in advance a communication terminal that can be used as a slave unit of the second communication terminal, and the first communication terminal and the fourth communication terminal When communicating with each other, the fourth communication terminal is not registered in the first connectable partner storage unit, and the second communication terminal is registered. When the first communication terminal is registered as a terminal that can be used as a slave of the communication terminal, the second communication terminal is connected from the first communication terminal via the second wireless line. It may be configured to relay and further connect to the fourth communication terminal from the second communication terminal via a public telephone line.

  Also, for example, a first communication terminal that is connectable to a first wireless line constituted by a wireless telephone line and a second wireless line constituted by a wireless communication line other than the first wireless line. And another communication terminal that is connectable to a public telephone line and the second wireless line, and that is connectable to both the first wireless line and the second wireless line; A second determination unit that determines whether or not a connection is possible via a second wireless line; and a state in which the second determination unit can be connected via the second wireless line. A second connectable partner storage unit for registering information of the determined other communication terminal; and a third communication terminal connectable to at least the first wireless line; Configured to communicate from the third communication terminal to the second communication terminal. When the first communication terminal is registered in the second connectable partner storage unit, the third communication terminal passes through the first wireless line and the public telephone line. The second communication terminal may be called and the first communication terminal may be called from the second communication terminal via the second wireless line.

  With this configuration, when the second communication terminal is a fixed telephone, when the application for communication is made from the third communication terminal to the second communication terminal, the first communication terminal And the second communication terminal can be connected to each other via the second communication line, the first communication terminal is also called via the second communication line.

  Further, at this time, a connection with the third communication terminal may be established via the second communication terminal by responding to the call to the first communication terminal. As a result, the first communication terminal can behave as a slave unit of the second communication terminal.

  Further, for example, the second communication terminal is configured to be able to register in advance a communication terminal that can be used as a slave unit of the second communication terminal, and from the third communication terminal to the second communication terminal. A terminal that can be used as a slave unit of the second communication terminal when the first communication terminal is registered in the second connectable partner storage unit when applying for communication with the second communication terminal When the first communication terminal is registered, the second communication terminal is called from the third communication terminal via the first wireless line and public telephone line, and the second communication terminal A configuration in which the first communication terminal is called from the communication terminal via the second wireless line may be employed.

Also, for example, a first communication terminal that is connectable to a first wireless line constituted by a wireless telephone line and a second wireless line constituted by a wireless communication line other than the first wireless line. And another communication terminal that is connectable to a public telephone line and the second wireless line, and that is connectable to both the first wireless line and the second wireless line; A second determination unit that determines whether or not a connection is possible via a second wireless line; and a state in which the second determination unit can be connected via the second wireless line. A second connectable partner storage unit that registers information of the determined other communication terminal, and a fourth communication terminal connectable to at least a public telephone line,
When applying for communication from the fourth communication terminal to the second communication terminal, if the first communication terminal is registered in the second connectable partner storage unit, The communication terminal 4 may call the second communication terminal via a public telephone line, and may call the first communication terminal from the second communication terminal via the second wireless line. .

  At this time, a connection may be established with the fourth communication terminal via the second communication terminal by responding to the call to the first communication terminal.

  Further, for example, the second communication terminal is configured to be able to register in advance a communication terminal that can be used as a slave unit of the second communication terminal, and from the fourth communication terminal to the second communication terminal. A terminal that can be used as a slave unit of the second communication terminal when the first communication terminal is registered in the second connectable partner storage unit when applying for communication with the second communication terminal When the first communication terminal is registered, the second communication terminal is called from the fourth communication terminal via the public telephone line, and the second communication terminal The first communication terminal may be called through the wireless line.

  In addition, the communication terminal of the present invention is configured to be connectable to a public telephone line and a second wireless line that is a wireless communication line other than the wireless telephone line, and the first wireless terminal configured by the wireless telephone line. A second determination unit that determines whether or not a communication terminal that is connectable to both a line and the second wireless line is in a connectable state via the second wireless line; A second connectable partner storage unit that registers information of another communication terminal that is determined to be connectable via the second wireless line in a second determination unit, and the first determination unit includes: A connection is established between a first communication terminal that can be connected to both the wireless line and the second wireless line, and a third communication terminal that is a terminal other than the terminal and the first communication terminal. The first communication terminal is registered in the second connectable partner storage unit. In this case, the first communication terminal communicates with the first communication terminal via the second wireless line, and further communicates with the third communication terminal via a public telephone line. And relaying the connection of the third communication terminal.

  Further, for example, the first wireless line configured with a wireless telephone line can be connected to a public telephone line and a second wireless line that is a wireless communication line other than the wireless telephone line, and the second wireless line. A second determination unit that determines whether or not a communication terminal that can be connected to both of the wireless lines and the second wireless line is in a connectable state; and the second determination unit A second connectable partner storage unit that registers information of another communication terminal that is determined to be in a connectable state via the second wireless line, and includes the first wireless line and the When the first communication terminal that can be connected to both of the second wireless lines is registered in the second connectable partner storage unit, it is a communication terminal other than the terminal and the first communication terminal When an application for communication is made from the third communication terminal, the second radio Makes a connection to the first communication terminal via a line, it may be to perform a call processing of the first communication terminal.

  At this time, the communication terminal of the present invention has a display unit that can be visually confirmed by a user, and the information of the other communication terminal registered in the second connectable partner storage unit is the display unit. It does not matter if it is displayed on the screen.

  In addition, for example, the second determination unit transmits communicable data that is information transmitted from the other communication terminal and indicating that it is determined that connection is possible via the second wireless line. When it is received via the second wireless line, it may be determined that it is connectable to the other communication terminal that is the transmission source of the communicable data via the second wireless line.

  In addition, for example, identifier data that is individual information for identifying each communication terminal is sequentially transmitted to the other communication terminals that exist at positions connectable via the second wireless line. It doesn't matter if there is something.

  In addition, for example, when the other communication terminal is in a connectable state via the second wireless line, the connection with the communication terminal is permitted via the second wireless line. A communication station identifier storage unit in which information of another communication terminal is registered in advance by a user is provided, and the second determination unit is information transmitted from the other communication terminal, and each of the other communication terminals When the identifier data, which is individual information for identifying the identifier data, is received via the second wireless line, the information of the other communication terminal that is the transmission source of the received identifier data is stored in the counterpart station identifier storage unit. While confirming whether it is registered, it may be determined that it is in a connectable state with the other communication terminal via the second wireless line if it is registered.

  In addition, for example, the second determination unit transmits communicable data that is information transmitted from the other communication terminal and indicating that it is determined that connection is possible via the second wireless line. When receiving via the second wireless line, it is confirmed whether or not the information of the other communication terminal that is the transmission source of the received communicable data is registered in the counterpart station identifier storage unit If it is determined, it may be determined that it is in a connectable state with the other communication terminal via the second wireless line.

  In addition, for example, it is possible to connect to the other communication terminal determined to be in a connectable state via the second wireless line by the second determination unit via the second wireless line. The communicable data, which is information indicating that, may be transmitted via the second wireless line.

  In addition, for example, identifier data that is individual information for identifying each communication terminal is sequentially transmitted to the other communication terminals that exist at positions connectable via the second wireless line. There is no problem.

  According to the configuration of the present invention, when a user makes a call to the other party's mobile phone, without being aware of whether to connect using a wireless LAN line or a wireless telephone line. If the wireless LAN line is available, a signal to call the other party's mobile phone is transmitted via the wireless LAN line. If the wireless LAN line is unavailable, the signal is sent via the wireless telephone line. Therefore, there is no need to be particularly conscious of which line is used to call the other party. That is, it is possible to realize a wireless communication system that can perform a call via a wireless communication line other than the wireless telephone line without performing a complicated operation.

  At this time, the other party's mobile phone called through the wireless LAN line also performs communication through the wireless LAN line by performing normal response processing. There is no need to be particularly conscious of whether the call has been made, so that the user can communicate with the other party in an environment that can be connected via the wireless LAN line via the wireless LAN line without any particular consideration. Since the configuration is performed, the use opportunity of the wireless LAN line is improved.

  In addition, when a fixed telephone compatible with a wireless LAN line is present in an area that can be connected to the portable device target portable telephone through a wireless LAN line, the portable telephone may have a function as a portable unit of the fixed telephone. it can. For this reason, it is possible to respond to the incoming call to the fixed telephone with the mobile telephone, and convenience is improved. At this time, connection by a wireless LAN line is performed, and the use opportunity of the wireless LAN line is improved.

  Conversely, when a call is made from the mobile phone targeted for the slave unit to another phone, if the wireless LAN connection is possible with the fixed phone, the public phone line can be connected from the mobile phone via the fixed phone. You can make a call. Even in this case, the use opportunity of the wireless LAN line is improved.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram showing an embodiment of a wireless communication system of the present invention.

  A wireless communication system 1 shown in FIG. 1 includes a mobile phone 2, a mobile phone 3, a fixed phone 4 that can use a wireless LAN line, and a base station of a wireless phone line that has jurisdiction over the area where the mobile phone 2 and the mobile phone 3 are located. 5 and 7. In the following description, the telephone number of the mobile phone 2 is 0902, the telephone number of the mobile phone 3 is 0903, and the telephone number of the fixed phone 4 is 0604.

  A case where a call application is made from the mobile phone 2 to the mobile phone 3 will be described. In the following, it is assumed that the distance between the mobile phone 2 and the mobile phone 3 is large, and that the connection between the mobile phone 2 and the mobile phone 3 is not established by a wireless LAN (wireless LAN line). 113 is not established). A case where the connection is established by the wireless LAN will be described later. Hereinafter, the wireless LAN connection established between the mobile phones is referred to as “direct wireless LAN connection”.

  A case where the mobile phone 2 is operated to make a call to the mobile phone 3 will be described. At this time, the telephone number of the mobile phone 3 may be registered in the memory of the mobile phone 2. The user of the cellular phone 2 selects the telephone number “0903” of the cellular phone 3 from the memory and calls the number. Note that the user may enter the telephone number “0903” of the mobile phone 3 without being registered in the memory.

  At this time, if the mobile phone 2 and the fixed telephone 4 are in an environment where the wireless LAN line 111 can be used, the fixed telephone 4 through the public telephone line 9, the public network 6, the base station 5, the wireless A call signal indicating that the call is made to the mobile phone 3 is transmitted via the telephone line 8 in order. On the other hand, in an environment where the wireless LAN line 111 cannot be used because the positions of the mobile phone 2 and the fixed telephone 4 are more than a predetermined distance, the wireless telephone line 112, the base station 7, the public network 6, and the base station 5 Then, a call signal for calling the mobile phone 3 is transmitted via the radio telephone line 8 in order.

  When the mobile phone 2 and the fixed telephone 4 are in an environment where the wireless LAN line 111 can be used, a call is made using the public line via the fixed telephone 4 or not via the fixed telephone 4. it choice of making calls using the wireless telephone circuit may be as done by the operation of the mobile phone 2, it may be as capable of setting whether to use either advance priority. Hereinafter, the wireless LAN connection established between the mobile phone and the fixed telephone is referred to as “fixed via wireless LAN connection”.

  A case where a call is called from the mobile phone 2 to the mobile phone 3 without going through the fixed telephone 4, that is, without using the wireless LAN line 111 will be described. At this time, the user calls 0903 which is the telephone number of the mobile phone 3 from the mobile phone 2. Then, a calling signal from the mobile phone 2 is sent to the base station 4 via the radio telephone line, and sent from the base station 4 to the mobile control station (not shown) via the public network. Thereafter, the mobile control station searches for the base station 5 having jurisdiction over the point where the mobile phone corresponding to the number 0903 exists, and transmits a call signal for calling the mobile phone 3 from the base station 5 via the radio telephone line 9. To do.

  On the other hand, in an environment where the wireless LAN line 111 can be used, a call signal for calling from the fixed telephone 4 to the mobile phone 3 via the public line 9 as well as via the fixed telephone 4 via the wireless LAN line 111. Is sent. At this time, it is assumed that the information of the mobile phone 2 that is the caller is transmitted in both cases of passing through the fixed telephone 4 and not passing through the fixed telephone 4. That is, the user of the mobile phone 3 can confirm that the call is from the mobile phone 2.

  When the mobile phone 3 is called via the fixed telephone 4, the information of the fixed telephone 4 may be transmitted together with the caller information, or the fixed telephone 4 serves as a relay station. It is also possible to transmit information to the effect.

  Under such a state, when the user of the mobile phone 3 performs an operation corresponding to the call, the mobile phone 2 and the mobile phone 3 are in a state in which a call can be made. When a call is made via the fixed telephone 4, voice signals are transmitted / received via the wireless LAN line 111 and the public telephone line 9, and when a call is made via the wireless telephone line, the wireless telephone line Audio signals are transmitted and received via 112. That is, the user of the mobile phone 3 performs fixed operations through the public line and the wireless LAN line by performing the same operation as the answering operation in a normal mobile phone without particularly being aware of which line the call is received from. When calling from a telephone, a call can be made via these lines, and when calling by a wireless telephone line, the call can be made via a wireless telephone line.

  On the other hand, the user of the mobile phone 2 that is the caller can also call and transmit the number of the mobile phone 3 that is the call destination from the memory as in the case of a normal mobile phone, If the line is available, a signal for calling from the fixed telephone 4 to the mobile phone 3 is transmitted via the wireless LAN line, and the wireless LAN line cannot be used with the fixed telephone 4. If there is, a signal for calling to the mobile phone 3 is transmitted via the wireless telephone line, so there is no need to be particularly aware of which line is used to call the other party.

  Note that when the connection via the wireless LAN line 113 is established between the mobile phone 2 and the mobile phone 3, the mobile phone 3 is called from the mobile phone 2 via the wireless LAN line 113. Even in this case, the user of the mobile phone 3 is not aware of from which line the call is made, and performs a call through the wireless LAN line 113 by performing the same operation as the answering operation in a normal mobile phone. The user of the mobile phone 2 that is the caller can also use the wireless LAN line simply by calling and transmitting the number of the mobile phone 3 that is the callee from the memory in the same manner as a normal mobile phone. If it is possible, a signal for calling the mobile phone 3 is transmitted via the wireless LAN line.

  Further, even when the mobile phone 2 is connected to the mobile phone 3 that is the call destination by the wireless LAN line 113, the mobile phone 2 makes a call using the wireless LAN line 113, or another line is connected. It may be configured such that the user can select whether to make a call or may be set in advance by the user. In the following description, it is assumed that connection priorities are assigned in the order of direct wireless LAN connection, fixed via wireless LAN connection, and wireless telephone line connection.

  FIG. 2 is a flowchart showing an overall operation flow for making a call using the wireless communication system 1. Assume that the user of the mobile phone 2 calls the mobile phone 3. First, the user of the mobile phone 2 designates the destination (in this case, the phone number 0903 of the mobile phone 3) (STEP 1-1). Then, it is confirmed whether or not a connection with the mobile phone 3 by a direct wireless LAN line is possible (STEP 1-2). As will be described later, the determination operation as to whether or not the direct wireless LAN line is in a usable state is sequentially performed in each mobile phone, and when the user designates the destination, the mobile phone This is a configuration for ascertaining whether or not a wireless LAN line can be used with a partner designated as a call destination.

  When it is confirmed in STEP 1-2 that the direct wireless LAN line is available (Yes in STEP 1-2), the mobile phone 2 performs a call operation to the mobile phone 3 via the wireless LAN line (STEP 1-3). ). Then, it is confirmed whether or not there is a response from the mobile phone 3 (STEP1-4), and if there is a response (Yes in STEP1-4), a call is made via the wireless LAN line (STEP1-5). On the other hand, if there is no response (No in STEP1-4), the call is continued until there is a response.

  On the other hand, when it is confirmed in STEP 1-2 that the direct wireless LAN line cannot be used (No in STEP 1-2), it is confirmed whether or not a wireless LAN connection is possible with the fixed telephone 4 (STEP 1-7). ). Whether or not fixed via wireless LAN connection is possible is performed sequentially on the corresponding mobile phone and fixed phone as well as whether or not direct wireless LAN connection is possible. The telephone is configured to know whether or not a wireless LAN line can be used with a fixed telephone.

  When it is confirmed in STEP 1-7 that the fixed via wireless LAN line is available (YES in STEP 1-7), the mobile phone 2 performs a calling operation via the fixed telephone 4 and the public telephone line 9 (STEP 1-8). ). Then, it is confirmed whether or not there is a response from the mobile phone 3 (STEP 1-9), and if there is a response (Yes in STEP 1-9), a call is made with the fixed telephone 4 via the public telephone line 9 (STEP 1- 1). 10). On the other hand, if there is no response (No in STEP 1-9), the call is continued until there is a response.

  On the other hand, when it is confirmed in STEP 1-7 that the fixed via wireless LAN line cannot be used (No in STEP 1-7), the cellular phone 2 calls the cellular phone 3 via the radio telephone line. (STEP 1-12). Then, it is confirmed whether or not there is a response from the mobile phone 3 (STEP 1-13), and if there is a response (Yes in STEP 1-13), a call is made via the radio telephone line (STEP 1-14). On the other hand, if there is no response (No in STEP 1-13), the call is continued until there is a response.

  In the above description, if there is no response even if a call is made for a predetermined time, the call may be automatically stopped.

  While the connection is maintained (Yes in STEP 1-6, Yes in STEP 1-11, Yes in STEP 1-15), a call is made via a direct wireless LAN line, a fixed via wireless LAN line, and a wireless telephone line, respectively. If a signal to disconnect the line is transmitted from at least one of them (No in STEP 1-6, No in STEP 1-11, No in STEP 1-15), the call is terminated (STEP 1-16).

<< 1. Call determination by direct wireless LAN connection >>
Next, a method for determining whether or not the caller mobile phone 2 and the callee mobile phone 3 are connectable via a wireless LAN line will be described below. FIG. 3 is a block diagram showing the configuration of the mobile phone 2, and FIG. 4 is a block diagram showing the configuration of the mobile phone 3. As will be described later, the difference between the configurations of the mobile phones shown in FIGS. 3 and 4 is that the mobile phone shown in FIG. 3 sends a signal requesting determination as to whether or not the wireless LAN line is available. In contrast, when the mobile phone shown in FIG. 4 receives a signal requesting a determination as to whether or not the wireless LAN line is available, the mobile phone can be used after actually making the determination. If so, it is a configuration having a function of returning a signal to that effect.

  That is, the mobile phone 2 requests the mobile phone 3 to determine whether it can be connected via a wireless LAN line, and the mobile phone 3 returns the determination result to the mobile phone 2. At this time, conversely, the mobile phone 3 requests the mobile phone 2 to determine whether it can be connected via the wireless LAN line, and the mobile phone 2 returns the determination result to the mobile phone 3. Alternatively, it may be configured to request a determination as to whether or not both can be connected to each other via a wireless LAN line. In the following configuration, the mobile phone 2 requests the mobile phone 3 to determine whether it can be connected via a wireless LAN line, and the mobile phone 3 returns the determination result to the mobile phone 2. I will explain it as a thing.

  First, the operation of each component included in the mobile phone 2 and the mobile phone 3 will be briefly described.

  A cellular phone 2 shown in FIG. 3 includes a radio telephone line receiver 11 that receives a signal from a radio telephone line, a radio telephone line transmitter 12 that transmits a signal to the radio telephone line, and a signal from a wireless LAN line. A wireless LAN line receiving unit 13 for receiving a signal, a wireless LAN line transmitting unit 14 for transmitting a signal to the wireless LAN line, and a wireless telephone line for performing predetermined control on the signal received from the wireless telephone line receiving unit 11 A reception signal control unit 38.

  The radio telephone line reception signal control unit 38 does not perform processing such as voice conversion when the mobile phone 2 is communicating with another telephone when receiving a signal from the radio telephone line reception unit 11. The wireless telephone line transmitter 12 is instructed to transmit a signal indicating that communication is in progress to the transmission source. In addition, when not communicating with other telephones, the reception signal is output to the voice output conversion unit 23 to the radio telephone line reception unit 11 to be converted into a format that can be heard by the user. The instructions are given.

  Furthermore, the cellular phone 2 includes a voice input unit 15 for a user to input voice from the outside, an input voice conversion unit 16 for converting voice input to the voice input unit 15 into a format that can be transmitted via a wireless telephone line, and A communication method selection unit 17 for selecting whether to communicate via a wireless telephone line or to communicate via a wireless LAN line, and wireless to convert the input voice into a format that can be transmitted via the wireless LAN line A LAN data converter 18. In addition, a communication control unit 35 that performs control such as communication start or communication stop with the communication partner is provided.

  Further, the cellular phone 2 includes a data analysis unit 19 that analyzes the data received from the wireless LAN line reception unit 13, a data analysis control unit 21 that controls the data analysis unit 19, and a data analysis unit 19 that performs wireless LAN. A radio telephone line data converter 22 for converting the voice data received into the format received via the radio telephone line when the data received from the line receiver 13 is determined as voice data; and a radio telephone line receiver 11 and the audio output conversion unit 23 that converts the audio data given from the radio telephone line data conversion unit 22 into a format that can be heard by the user, and the audio that outputs the audio data output from the audio output conversion unit 23 to the outside And an output unit 24. The user can recognize the voice of the other party by listening to the voice data output from the voice output unit 24.

  Furthermore, when the mobile phone 2 receives a call signal from another mobile phone, the mobile phone 2 performs a process for outputting a ringing tone and a process for displaying on the screen a content indicating that a call has been made. Part 36 is provided. In addition, a cutting processing unit 39 that performs processing for outputting a cutting sound when receiving a cutting signal from another mobile phone and processing for displaying on the screen a content indicating that cutting processing has been performed is provided. .

  Furthermore, the mobile phone 2 includes an operation unit 25 operated by a user, and an operation control unit 37 that gives a predetermined instruction to the subsequent stage based on the operation content of the operation unit 25. The operation unit 25 is composed of a plurality of operators, and when the user operates the operation unit 25, for example, the telephone number of the other party can be input, or an instruction to start transmission and response processing can be given.

  Furthermore, the mobile phone 2 is an information signal transmitted from the partner station, and the data received from the wireless LAN line receiver 13 is communicable between the partner station and the mobile phone 2 via the wireless LAN line. When the data analysis unit 19 determines that the communicable data is an information signal indicating that the wireless LAN is used, the wireless LAN utilization partner station storage unit 28 registers information indicating that the wireless LAN connection is possible with the partner station. And a display process for performing a display process for displaying on the screen that the other station stored in the wireless LAN using partner station storage unit 28 can be connected using the wireless LAN. Unit 29 and a display unit 31 for displaying information displayed by the display processing unit 29.

  Further, the cellular phone 2 includes a data discarding unit 33 that discards the data when the data analyzing unit 19 determines that the data received from the wireless LAN line receiving unit 13 is unnecessary data, and another cellular phone. A self-station identifier data creation unit 34 for creating identifier data of the mobile phone 2 itself for identifying the mobile phone 2 through The identifier created by the local station identifier data creation unit 34 is sent to the wireless LAN line transmission unit 14 and output to another mobile phone via the wireless LAN line. In the following, it is assumed that the information of the mobile phone number of the user is used as the local station identifier data.

  That is, the cellular phone 2 creates an information signal 0902 which is the telephone number of the cellular phone 2 by the local station identifier data creation unit 34, and information on this phone number is transmitted from the wireless LAN line transmission unit 14. It is assumed that the local station identifier data creation unit 34 periodically creates a local station identifier and outputs it to the wireless LAN line transmission unit 14.

  Next, the configuration of the mobile phone 3 will be described with reference to FIG.

  A cellular phone 3 shown in FIG. 4 includes a radio telephone line receiver 41 that receives a signal from a radio telephone line, a radio telephone line transmitter 42 that transmits a signal to the radio telephone line, and a signal from a wireless LAN line. And a wireless LAN line transmission unit 44 that transmits a signal to the wireless LAN line. The wireless telephone line reception signal control unit 68 performs predetermined control on the signal received from the wireless telephone line reception unit 41.

  The radio telephone line reception signal control unit 68 does not perform processing such as voice conversion when the mobile phone 3 is communicating with another telephone when receiving a signal from the radio telephone line reception unit 41. The wireless telephone line transmission unit 42 is instructed to transmit a signal indicating that communication is being performed to the transmission source. Further, when not communicating with other telephones, the reception signal is output to the voice output conversion unit 53 to the radio telephone line reception unit 41 so that the user can hear it. Give instructions to convert.

  Further, the mobile phone 3 includes a voice input unit 45 for a user to input voice from the outside, an input voice conversion unit 46 for converting voice input to the voice input unit 45 into a format that can be transmitted via a wireless telephone line, and A communication method selection unit 47 for selecting whether to perform communication via a wireless telephone line or to perform communication via a wireless LAN line, and wireless to convert the input voice into a format that can be transmitted via the wireless LAN line A LAN data converter 48. In addition, a communication control unit 65 that performs control such as communication start or communication stop with a communication partner is provided.

  Further, the cellular phone 3 includes a data analysis unit 49 that analyzes data received from the wireless LAN line reception unit 43, a data analysis control unit 51 that controls the data analysis unit 49, and a data analysis unit 49. A radio telephone line data converter 52 for converting the voice data received into the format received via the radio telephone line when the data received from the line receiver 43 is determined as voice data; and a radio telephone line receiver 41 and a voice output converter 53 that converts the voice data provided from the radio telephone line data converter 52 into a format that can be heard by the user, and a voice that outputs the voice data output from the voice output converter 53 to the outside. And an output unit 54. The user can recognize the voice of the other party by listening to the voice data output from the voice output unit 54.

  Furthermore, when the mobile phone 3 receives a call signal from another mobile phone, the call processing unit 66 performs a display process for outputting a ringing tone or displaying the content of the call on the screen. Is provided. In addition, a cutting processing unit 69 is provided that performs processing for outputting a cutting sound when receiving a cutting signal from another mobile phone, and processing for displaying on the screen a content indicating that the cutting processing has been performed. .

  Furthermore, the mobile phone 3 includes an operation unit 55 operated by a user, and an operation control unit 67 that gives a predetermined instruction to the subsequent stage based on the operation content of the operation unit 55. The operation unit 55 includes a plurality of operators, and the user can operate the operation unit 55 to input, for example, the telephone number of the other party, and to issue a start instruction for transmission and response processing.

  Further, the cellular phone 3 receives from the wireless LAN line receiving unit 43 by the partner station identifier storage unit 56 that stores the telephone number of the other party registered by the user operating the operation unit 55 and the data analysis unit 49. If it is determined that the received data is an information signal transmitted from the partner station and information on the telephone number of the partner station (identifier data), the connection method with the partner corresponding to the telephone number And a communication method determining unit 57 that determines which of the wireless LAN lines to select, and when the communication method determining unit 57 determines that wireless LAN connection is possible, A wireless LAN using partner station storage unit 58 for registering information indicating that connection is possible, and a wireless L for the partner station stored in the wireless LAN using partner station storage unit 58 A display processing unit 59 that performs a display process for displaying on the screen that the connection is possible using N, and a display unit 61 that displays information displayed by the display processing unit 59. .

  Further, the mobile phone 3 includes a data discarding unit 63 that discards the data received from the wireless LAN line receiving unit 43 by the data analyzing unit 49, and a wireless LAN using partner. And a communicable data creation unit 64 that creates communicable data describing information to that effect on the other station that stores the content to be connected using the wireless LAN line by the station storage unit 58.

  The communicable data created by the communicable data creation unit 64 is sent to the wireless LAN line transmission unit 44 and transmitted via the wireless LAN line to each partner station that performs wireless LAN connection.

  When the mobile phone 2 and the mobile phone 3 are configured as described above, the flow of the operation for determining whether or not the mobile phone 2 and the mobile phone 3 can be connected via a wireless LAN line will be described below.

  As described above, the cellular phone 2 sequentially transmits information on its own cellular phone number created by the local station identifier data creation unit 34 from the wireless LAN line transmission unit 14. At this time, the identifier data transmitted from the wireless LAN line transmission unit 14 is radiated from the position of the mobile phone 2 at that time into an area that can be connected by the wireless LAN line.

  On the other hand, the cellular phone 3 analyzes the data received from the wireless LAN line receiving unit 43 by the data analyzing unit 49. At this time, if the data analysis unit 49 determines that the received data is identifier data (phone number information of the mobile phone), the information of the phone number is output to the communication method determination unit 57. When it is determined that the other party can be connected via the wireless LAN line, the telephone number of this partner station is stored in the wireless LAN using partner station storage unit 58. Then, the communicable data creation unit 64 creates communicable data that is an information signal indicating that the telephone number stored in the wireless LAN utilization partner station storage unit 58 can be connected via the wireless LAN, This communicable data is transmitted from the wireless LAN line transmitter 44 to the destination. A method for determining whether or not the communication method determination unit 57 is a partner that can be connected via a wireless LAN line will be described later.

  In the above description, it is confirmed that the received data is the identifier data in the data analysis unit 49. This means that the mobile phone that is the sender of the identifier data and the mobile phone 3 can transmit and receive data via the wireless LAN. It represents being located within a certain range.

  For example, when the mobile phone 2 is at a predetermined distance or more away from the position of the mobile phone 3 and the data cannot be transmitted / received correctly via the wireless LAN, the identifier data sent from the mobile phone 2 is The information may be received by the mobile phone 3 as incorrect information due to loss or superimposition of noise, or may not be received at all. At this time, in any case, the determination operation as to whether or not the other party may be connected to the mobile phone 2 via the wireless LAN line is not performed, so that communicable data is not created. Thus, communicable data is not transmitted to the mobile phone 2. Therefore, the mobile phone 2 and the mobile phone 3 are not connected via the wireless LAN.

  When the data analysis unit 49 determines that the data is the identifier data of the mobile phone, the information on the telephone number is given to the communication method determination unit 57 as described above. The communication method determining unit 57 checks the telephone number stored in the partner station identifier storage unit 56 and determines whether or not the mobile phone indicated by the telephone number can be connected via the wireless LAN line. Make a decision.

  In the partner station identifier storage unit 56, a telephone number input in advance from the operation unit 55 by the user is registered. This partner station identifier storage unit 56 can also function as a telephone directory of the mobile phone. At this time, in addition to the telephone number of the other party, a name or geographic information for identifying the other party, and information to that effect are registered if the other party may be connected via a wireless LAN line.

  FIG. 5 shows an example of a data structure registered in the counterpart station identifier storage unit 56. The telephone number 0901 is registered with the keyword “A field B husband”, and “0” is registered in the wireless LAN usable item as a partner not connected using the wireless LAN line. The telephone number 0902 is registered with the keyword “C field D child”, and “1” is registered in the wireless LAN usable item as a partner to be connected using the wireless LAN line.

  The communication method determining unit 57 searches for a registrant corresponding to the transmitted telephone number from the data group stored in the partner station identifier storage unit 56, and determines whether or not the partner can use the wireless LAN line. Make a decision. If it is registered as a partner using the wireless LAN line, the telephone number of this partner station is stored in the wireless LAN using partner station storage unit 58.

  Further, in order to visually display that the telephone number stored in the wireless LAN utilization partner station storage unit 58 can be connected using the wireless LAN, the display processing unit 59 performs signal processing for screen display. Is displayed on the display unit 61, the information of the partner station in the wireless LAN available state is displayed.

  FIG. 6 is an example of a list display screen of partner stations in a wireless LAN available state displayed on the display unit 61. In this way, the user can confirm a list of partners that can be connected using the wireless LAN line at that time by confirming the screen. At this time, for example, by selecting “C field D child” and operating the “OK” button, a call to “C field D child” can be started via the wireless LAN.

  Further, the communicable data creation unit 64 creates communicable data that is an information signal indicating that the telephone number stored in the wireless LAN utilization partner station storage unit 58 can be connected via the wireless LAN, This communicable data is transmitted from the wireless LAN line transmitter 44 to the destination. In the above example, communicable data is transmitted from the mobile phone 3 to the mobile phone 2 specified by the telephone number 0902.

  FIG. 7A shows a data structure of data transmitted / received via the wireless LAN. FIG. 7B is an example of this data. Wireless LAN data 70 transmitted / received via a wireless LAN includes transmission destination information 71, header information 72 indicating information type, transmission source information 73, content information 74 indicating information content, Consists of. A stream of information configured in this way is transmitted from the mobile phone of the transmission source.

  The destination information 71 is information for specifying a destination mobile phone. For example, the telephone number of the mobile phone that is the destination is described. The header information 72 is described to identify the type of content described in the content information 74. Depending on the content described in the header information 72, whether the content described in the content information 74 is voice data, communicable data, identifier data, a call signal, or a disconnect signal Can be determined.

  Further, the caller information 73 is information for specifying the caller's mobile phone, and describes, for example, the telephone number of the caller's mobile phone. The content information 74 describes the content to be actually transmitted from the transmission source to the transmission destination, and includes, for example, voice data, communicable data, identifier data, a call signal, a disconnection signal, and the like.

  The communicable data transmitted from the wireless LAN line transmitter 44 of the mobile phone 3 to the mobile phone 2 is received by the wireless LAN line receiver 13 of the mobile phone 2. Then, the data received by the wireless LAN line receiving unit 13 is sent to the data analyzing unit 19 for analysis.

  As described above, the type of the data can be determined by analyzing the header information 72 of the data structure transmitted via the wireless LAN. In this case, since it is communicable data transmitted from the mobile phone 3, information indicating that the communicable data is described in the header information 72, and the data analyzing unit 19 indicates that this information is communicable data. And information to that effect is transmitted to the data analysis control unit 21.

  When the data analysis control unit 21 is notified that the data received by the data analysis unit 19 from the wireless LAN line reception unit 13 is communicable data, the data analysis unit 19 uses the communicable data to use the wireless LAN. An instruction to output to the partner station storage unit 28 is given. Then, the wireless LAN utilization partner station storage unit 28 stores the source mobile phone 3 described in the transmitted communicable data as a partner that can be connected via the wireless LAN line.

  Then, in order to visually display that the telephone number stored in the wireless LAN utilization partner station storage unit 28 can be connected using the wireless LAN, the display processing unit 29 performs signal processing for screen display. Is displayed, the information of the partner station in the wireless LAN available state is displayed on the display unit 31.

  As a result, the cellular phone 3 is registered in the cellular phone 2 as a wireless LAN usable partner station. On the other hand, as described above, the mobile phone 2 is registered as a wireless LAN usable partner station in the mobile phone 3, and it is recognized that the mobile phone 3 can be connected to each other via the wireless LAN.

<< 2. Call determination by wireless LAN connection via fixed line >>
Next, a method for determining whether or not the caller's mobile phone 2 and the fixed phone 4 through which the public network is used can be connected via a wireless LAN line will be described below. FIG. 8 is a block diagram showing the configuration of the fixed telephone 4. The method for determining whether or not the mobile phone 2 and the fixed phone 4 are connectable via a wireless LAN line is based on the determination performed between the mobile phone 2 and the mobile phone 3 described above. .

  In the following, the mobile phone 2 requests the fixed phone 4 to determine whether it can be connected via the wireless LAN line, and the fixed phone 4 returns the determination result to the mobile phone 2. In the same way as described above, on the contrary, the fixed telephone 4 requests the mobile phone 2 to determine whether it can be connected via the wireless LAN line. The configuration may be such that the determination result is returned, or the configuration may be such that the determination of whether or not both can be connected via a wireless LAN line is possible.

  When the fixed telephone 4 receives a signal requesting a determination as to whether or not the wireless LAN line can be used from the mobile phone compatible with the wireless LAN line, after the determination is actually made, A function for returning a signal to that effect is provided.

  The fixed telephone 4 shown in FIG. 8 includes a public telephone line receiver 81 that receives a signal from a public telephone line, a public telephone line transmitter 82 that transmits a signal to the public telephone line, and a signal from a wireless LAN line. A wireless LAN line receiving unit 83 for receiving the signal and a wireless LAN line transmitting unit 84 for transmitting a signal to the wireless LAN line. Also, a public telephone line reception signal control unit 107 that performs predetermined control on the signal received from the public telephone line reception unit 81 is provided.

  When receiving a signal from the public telephone line receiver 81, the public telephone line reception signal control unit 107 transmits the signal without performing processing such as voice conversion when the fixed telephone 4 is communicating with another telephone. An instruction to transmit a signal indicating that communication is in progress from the public telephone line transmission unit 82 is issued to the original. In addition, when communication is not being performed with another telephone, the reception signal is output to the voice output conversion unit 93 to the public telephone line reception unit 81 and converted into a format that can be heard by the user. Instruct to do so.

  Furthermore, the fixed telephone 4 includes a voice input unit 85 for a user to input voice from the outside, and an input voice conversion unit 86 for converting the voice input to the voice input unit 85 into a format that can be transmitted via a public telephone line. A communication method selection unit 87 that selects whether communication is performed via a public telephone line or communication via a wireless LAN line, and wireless communication that converts input voice into a format that can be transmitted via the wireless LAN line. A LAN data converter 88. In addition, a communication control unit 104 that performs control such as communication start or communication stop with the communication partner is provided.

  Further, the fixed telephone 4 includes a data analysis unit 89 that analyzes the data received from the wireless LAN line reception unit 83, a data analysis control unit 91 that controls the data analysis unit 89, and a data analysis unit 89. When the data received from the line receiver 83 is determined as voice data, the telephone line data converter 92 converts the voice data into a public telephone line format, and the public telephone line receiver 81 and the telephone line data. An audio output conversion unit 93 that converts audio data supplied from the conversion unit 92 into a format that can be heard by the user, and an audio output unit 94 that outputs the audio data output from the audio output conversion unit 93 to the outside. . The user can recognize the voice of the other party by listening to the voice data output from the voice output unit 94.

  Further, the fixed telephone 4 can have a function as a base unit of a wireless LAN compatible mobile telephone as will be described later. In this case, the fixed telephone 4 serves as a relay station. That is, the voice data from the mobile phone as the slave unit received from the wireless LAN line receiving unit 83 is given to the telephone line data converting unit 92 and converted into the format of the public telephone line. The data is given to the public telephone line transmission unit 82 and sent to the communication destination via the public network. A mobile phone to which the function of the fixed telephone 4 as a slave unit is given is hereinafter referred to as a “slave unit target mobile phone”.

  At this time, when the public telephone line reception signal control unit 107 receives a signal from the public telephone line reception unit 81, the public telephone line reception signal control unit 107 performs communication for giving a handset function to the handset target mobile phone. The public telephone line receiving unit 81 is instructed to output the received signal to the audio output converting unit 93 and convert it into a format that the user can hear.

  Further, when the fixed telephone 4 receives a call signal from another mobile phone, the call processing unit 105 performs a display process for outputting a ringing tone or displaying a content to the effect that the call has been made on the screen. Is provided. In addition, a disconnection processing unit 108 is provided for performing processing for outputting a disconnection sound when receiving a disconnection signal from another mobile phone, and processing for displaying on the screen a content indicating that the disconnection processing has been performed. .

  Furthermore, the fixed telephone 4 includes an operation unit 95 operated by a user, and an operation control unit 106 that gives a predetermined instruction to the subsequent stage based on the operation content of the operation unit 95. The operation unit 95 is composed of a plurality of operators. When the user operates the operation unit 95, for example, an input of a telephone number of the other party and an instruction to start transmission and response processing can be performed.

  Further, the fixed telephone 4 receives from the wireless LAN line receiving unit 83 by the partner station identifier storage unit 96 that stores the telephone number of the other party registered by the user operating the operation unit 95 and the data analysis unit 89. If it is determined that the received data is an information signal transmitted from the partner station and is information on the telephone number of the partner station (identifier data), the connection method with the partner corresponding to the telephone number is set to the public telephone line. And the communication method determining unit 97 that determines which of the wireless LAN lines to select, and when the communication method determining unit 97 determines that the wireless LAN connection is possible, A wireless LAN using partner station storage unit 98 for registering information indicating that connection is possible, and a wireless L for the partner station stored in the wireless LAN using partner station storage unit 98 A display processing unit 99 that performs a display process for displaying on the screen that the connection is possible using N, and a display unit 101 that displays information displayed by the display processing unit 99. .

  The fixed telephone 4 is configured such that the user can register the telephone number of a mobile telephone that allows the other station identifier storage unit 96 to have a function as a slave unit of the fixed telephone 4 by operating the operation unit 95. And That is, the partner station identifier storage unit 96 stores a terminal in which only a telephone number is registered and a terminal in which a telephone number is registered together with information indicating that a function as a slave unit can be provided.

  At this time, as will be described later, when a call is made to the fixed phone 4, the mobile phone to which the function as a slave unit of the fixed phone 4 is called is transferred to the mobile phone and the mobile phone It is the structure which can respond with a telephone. At this time, communication is performed between the mobile phone as a slave unit and the fixed telephone through a wireless LAN line, and communication between the fixed telephone and the calling terminal is performed through a public telephone line.

  On the other hand, when a call is made from a mobile phone to which a function as a slave unit of the fixed telephone 4 to the call destination is within a range where wireless LAN connection with the fixed telephone 4 is possible. A wireless LAN connection is made with the fixed telephone 4 without making a call via the wireless telephone line, and a call is made with the callee from the fixed telephone 4 via the public telephone line.

  Further, the fixed telephone 4 includes a data discarding unit 102 that discards the data received by the data analysis unit 89 from the wireless LAN line receiving unit 83 as unnecessary data, and a wireless LAN user. A communicable data creation unit 103 that creates communicable data describing information to that effect on the other station, which stores information to be connected using a wireless LAN line by the station storage unit 98;

  The communicable data created by the communicable data creation unit 103 is sent to the wireless LAN line transmission unit 84 and transmitted via the wireless LAN line to each partner station that performs wireless LAN connection.

  When the fixed telephone 4 is configured as described above, the determination operation as to whether or not the mobile telephone 2 and the fixed telephone 4 can be connected via a wireless LAN line is as follows. This is based on the connection possibility determination operation performed between them, and will be briefly described below.

  When the mobile phone 2 is a mobile phone target mobile phone and can be connected to the fixed phone 4 via a wireless LAN line, the mobile phone 2 is Information indicating the availability state is stored.

  As described above, the cellular phone 2 sequentially transmits information on its own cellular phone number created by the local station identifier data creation unit 34 from the wireless LAN line transmission unit 14. On the other hand, the fixed telephone 4 analyzes the data received from the wireless LAN line receiving unit 83 by the data analyzing unit 89. At this time, if the data analysis unit 89 determines that the received data is identifier data (phone number information of the mobile phone), the information on the phone number is output to the communication method determination unit 97.

  The communication method determining unit 97 searches the data group stored in the partner station identifier storage unit 96 in advance for the same telephone number as the transmitted telephone number, and determines whether or not the other party may use the wireless LAN line. Judgment is made. If it is registered as a partner using the wireless LAN line, the telephone number of this partner station is stored in the wireless LAN using partner station storage unit 88. Then, the communicable data creation unit 103 creates communicable data and transmits it to the counterpart from the wireless LAN line transmission unit 84.

  At this time, as described above, when the identifier data given from the data analysis unit 89 is registered in the counterpart station identifier storage unit 96 as a telephone number corresponding to the portable unit target mobile phone, the wireless LAN using counterpart station Information indicating that the slave unit is available is also stored in the storage unit 98.

  FIG. 9 shows an example of a data structure registered in the counterpart station identifier storage unit 96. The telephone number 0901 is registered with the keyword “A field B husband”, and “0” is registered in the wireless LAN usable item as a partner not connected using the wireless LAN line. The telephone number 0902 is registered with the keyword “C field D child”, and “1” is registered in the wireless LAN usable item as a partner to be connected using the wireless LAN line. Further, the mobile phone corresponding to the telephone number 0902 is registered as “1” in the handset target item because it is the handset target mobile phone of the fixed telephone 4. On the other hand, since the mobile phone corresponding to the telephone number 0901 is not the slave unit target phone of the fixed telephone 4, “0” is registered in the slave unit target item.

  In this case, when “0901” is given as the identifier data, the communication method determination unit 97 recognizes that the mobile phone having the number is not a wireless LAN utilization partner station, and stores it in the wireless LAN utilization partner station storage unit 98. Do not register. On the other hand, when “0902” is given as the identifier data, the communication method determination unit 97 recognizes that the mobile phone having the number is a wireless LAN utilization partner station, and further a mobile device target mobile phone, Information to that effect is stored in the LAN use partner station storage unit 98.

  The communicable data transmitted from the wireless LAN line transmitter 84 of the fixed telephone 4 to the mobile phone 2 is received by the wireless LAN line receiver 13 of the mobile phone 2. Then, the data received by the wireless LAN line receiving unit 13 is sent to the data analyzing unit 19 for analysis. Since this data is communicable data transmitted from the fixed telephone 4, information to that effect is transmitted to the data analysis control unit 21.

  When the data analysis control unit 21 is notified that the data received by the data analysis unit 19 from the wireless LAN line reception unit 13 is communicable data, the data analysis unit 19 uses the communicable data to use the wireless LAN. An instruction to output to the partner station storage unit 28 is given. Then, the wireless LAN utilization partner station storage unit 28 stores the source fixed telephone 4 described in the transmitted communicable data as a partner that can be connected via the wireless LAN line.

  Then, in order to visually display that the telephone number stored in the wireless LAN utilization partner station storage unit 28 can be connected using the wireless LAN, the display processing unit 29 performs signal processing for screen display. Is displayed, the information of the partner station in the wireless LAN available state is displayed on the display unit 31.

  As a result, the fixed telephone 4 is registered in the mobile phone 2 as a wireless LAN usable partner station. On the other hand, as described above, the mobile phone 2 is registered as a wireless LAN-usable partner station in the fixed telephone 4 and is recognized as being in a state where they can be connected to each other via the wireless LAN.

  When mobile phone 2 is a mobile device target mobile phone of fixed phone 4, the transmittable data transmitted from fixed phone 4 to mobile phone 2 includes information indicating that the mobile device is available It is good also as what is. In this case, after the mobile phone 2 receives the data by the wireless LAN line receiving unit 13, the data analysis unit 19 performs data analysis to recognize that the mobile phone 2 can be used as a slave unit of the fixed telephone 4. The fixed telephone 4 may be registered as a “master” in the LAN use partner station storage unit 28. Further, at this time, information indicating that may be displayed on the display unit 31. In the following description, it is assumed that the mobile phone 2 is a handset target phone of the fixed phone 4.

<< 3. Call procedure explanation >>
(3-1 Call via direct wireless LAN connection)
Consider that, for example, the mobile phone 2 tries to make a call to the mobile phone 3 under this state. The user operates the operation unit 25 of the mobile phone 2 to give an instruction to call the mobile phone 3. The operation content of the operation unit 25 is sent to the operation control unit 37, and when the operation control unit 37 confirms that the operation content is a call instruction for the mobile phone 3, call processing is performed on the mobile phone 3. Is given to the communication control unit 35.

  The communication control unit 35 instructs the communication method selection unit 17 to check whether the telephone number that is the call destination is registered in the wireless LAN utilization partner station storage unit 28. The communication method selection unit 17 If the called telephone number is registered in the wireless LAN utilization partner station storage unit 28, the wireless LAN line is selected.

  On the other hand, in the case where the called telephone number is not registered in the wireless LAN utilization partner station storage unit 28 and the fixed telephone 4 as the base unit is registered in the wireless LAN utilization partner station storage unit 28, The communication method selection unit 17 selects a wireless LAN line and changes the information to transmit data to the mobile phone 3 via the fixed phone 4. This will be described later.

  Furthermore, when neither the call destination telephone number nor the fixed telephone 4 that is the master unit is registered in the wireless LAN utilization partner station storage unit 28, the communication method selection unit 17 selects the radio telephone line as the communication line. .

  First, a case where the mobile phone 3 is already registered in the wireless LAN utilization partner station storage unit 28 as a wireless LAN usable partner station will be described. In this case, a wireless LAN line is selected by the communication method selection unit 17, and a call signal that is a content for calling the mobile phone 3 is converted into a format that can be transmitted by the wireless LAN by the wireless LAN data conversion unit 18. This data is transmitted from the transmission unit 14 to the mobile phone 3.

  The communication method selection unit 17 may maintain the current communication method until an instruction to confirm the communication method is given. In this case, the wireless LAN line is still selected at this time.

  The communication control unit 35 outputs to the data analysis control unit 21 information indicating that a call signal is being sent to the mobile phone 3 via the wireless LAN line. This is a measure for preventing the calling process from being performed when a call is made to the mobile phone 2 from another mobile phone while the mobile phone 3 is being called, as will be described later.

  The cellular phone 3 receives the calling signal from the cellular phone 2 by the wireless LAN line receiving unit 43. The received data is sent to the data analysis unit 49 to determine the type of data. When the data analysis unit 49 analyzes the header information 72 and confirms that the received data is a call signal, the data analysis unit 49 analyzes the transmission source information 73 to acquire the transmission source information and outputs it to the data analysis control unit 51.

  When the data analysis control unit 51 is notified that the data received by the data analysis unit 49 from the wireless LAN line reception unit 43 is a paging signal, the given source information is stored in the wireless LAN utilization partner station storage unit 58. Judge whether it is registered.

  As described above, identifier data transmitted from the mobile phone from the transmission source is received, and the transmission source is registered in advance in the partner station identifier storage unit 56 as a partner that may use the wireless LAN line. If so, the telephone number of the caller mobile phone is stored in the wireless LAN utilization partner station storage unit 58. In this case, since the identifier data of the mobile phone 2 has already been received and the mobile phone 2 is registered in the partner station identifier storage unit 56 as a partner that may use the wireless LAN line, In the storage unit 58, the telephone number of the mobile phone 2 is registered.

  When the data analysis control unit 51 confirms that the telephone number of the mobile phone that is the transmission source is registered in the wireless LAN utilization partner station storage unit 58, the call processing unit 66 has received a call from the mobile phone 2. A signal indicating is output. The call processing unit 66 instructs the display processing unit 59 to perform display processing for displaying on the screen of the mobile phone 3 that a call from the mobile phone 2 has been received. The display processing unit 59 performs display processing based on an instruction from the call processing unit 66, and then gives the processed signal to the display unit 61, and the display unit 61 carries the mobile phone based on the signal from the display processing unit 59. The content indicating that there has been a call from the telephone 2 is displayed.

  In addition, the call processing unit 66 gives a ringing sound indicating that a call has been made to the voice output conversion unit 53. The voice conversion output unit 53 converts the ringing tone given from the call processing unit 66 into an audible format, and then outputs it to the voice output unit 54. As a result, the user perceives that a ringing tone is sounding from the voice output unit 54 and recognizes that a call has been made from another telephone.

  Further, the call processing unit 66 outputs a signal to the communication control unit 65 indicating that it is waiting for a response to the call from the mobile phone 2. Further, the communication control unit 65 outputs to the data analysis control unit 51 that it is waiting for a response to the call from the mobile phone 2. This is a measure for preventing the calling process from being performed when a call is made from another mobile phone to the mobile phone 3 while a call is being made from the mobile phone 2 as described later. It is.

  On the other hand, when the telephone number of the mobile phone that is the transmission source is not registered in the wireless LAN use partner station storage unit 28, the data analysis control unit 51 does not issue a call instruction to the call processing unit 66, and the data analysis unit 49, the received data from the wireless LAN line receiving unit 43 is output to the data discarding unit 63, and the data is discarded. In this way, even when the mobile phone of the local station is mistakenly registered as a wireless LAN usable partner station in another mobile phone, the mobile phone of the sender is not registered in the local station. Since calling is not performed via a wireless LAN line, high reliability can be ensured.

  At this time, a received data temporary storage unit (not shown) for storing received data is provided so that the user can confirm later that the call has been made, and the received data is stored in the received data temporary storage unit. May be output and temporarily stored. In this way, when there is a call from another mobile phone during the call, the user can read the caller information from the received data temporary storage unit and check it. Then, after confirmation, the data stored in the received data temporary storage unit may be output to the data discard unit 63 to discard the data.

  At this time, the wireless LAN line transmission unit 44 may transmit a signal indicating that communication via the wireless LAN line cannot be performed to the mobile phone 2 that is the communication source.

  The user of the mobile phone 3 has called from the mobile phone 2 based on the ringing sound output from the voice output unit 54 and the notification indicating that the call from the mobile phone 2 is output to the display unit 61. Perceive. When responding to the call, the operation control unit 67 is given a signal to respond to the call by operating the operation unit 55. When the operation control unit 67 recognizes that the given signal is a response signal to the call, the operation control unit 67 outputs the response signal to the communication control unit 65. When the communication control unit 65 recognizes that the sent response signal is a response signal for waiting for a response from the mobile phone 2, the communication control unit 65 communicates with the mobile phone 2 using the wireless LAN line to the communication method selection unit 47. Instructions to communicate between the two.

  Note that the communication method selection unit 47 maintains the current communication method until an instruction to confirm the communication method is given. That is, at this time, it is assumed that the wireless LAN line remains selected.

  In addition, the communication control unit 65 outputs information indicating that wireless LAN communication is being performed with the mobile phone 2 to the data analysis control unit 51. This is because call processing is performed when a call is made from another mobile phone to the mobile phone 3 during communication (call) with the mobile phone 2 via a wireless LAN line. It is a measure to prevent it.

  When a call is made from another telephone through the wireless telephone line during communication (call) with the mobile phone 2 through the wireless LAN line, the wireless telephone line receiving unit 41 The call signal received by the wireless telephone line reception signal control unit 68 is supplied to the wireless telephone line reception signal control unit 68, and the mobile telephone 3 is communicating with the wireless telephone line reception signal control unit 68 based on the signal from the communication control unit 65. Is confirmed, an instruction to transmit a signal to that effect from the radio telephone line transmitter 12 is issued. With such a configuration, even if there is a call from the wireless telephone line during communication via the wireless LAN line, the calling process is not performed.

  When the user inputs voice from the voice input unit 45, the input voice is sent to the input voice conversion unit 46 and converted into a format that can be transmitted via the wireless telephone line. At this time, since the communication method selection unit 47 is selected to perform communication via the wireless LAN line as described above, the voice data output from the input voice conversion unit 46 is sent to the wireless LAN data conversion unit 48. Is output. The wireless LAN data converter 48 converts the data format of the audio data so that the audio data is transmitted to the mobile phone 2 via the wireless LAN line. The wireless LAN data conversion unit 48 may convert the data structure into the format shown in FIG.

  The voice data converted by the wireless LAN data converter 48 is sent to the wireless LAN line transmitter 44 and transmitted to the mobile phone 2 via the wireless LAN line.

  In the mobile phone 2, the wireless LAN line receiving unit 13 receives audio data from the mobile phone 3 through the wireless LAN line. The received data is sent to the data analysis unit 19 for data analysis. As described above, the type of the data can be determined by analyzing the header information 72 of the data structure transmitted via the wireless LAN. In this case, since it is voice data transmitted from the mobile phone 3, the header information 72 includes information indicating that it is voice data, and the data analysis unit 19 determines that this information is voice data. Then, information to that effect is output to the data analysis control unit 21. At this time, the transmission source information 73 is also output to the data analysis control unit 21.

  As described above, the data analysis control unit 21 is preliminarily given information indicating that a call signal is being sent to the mobile phone 3 from the communication control unit 35 via the wireless LAN line. At this time, the data analysis control unit 21 instructs the data analysis unit 49 to output to the data discarding unit 63 all received data whose source information 73 does not indicate the mobile phone 3.

  In this way, the mobile phone 2 can be configured to be unable to receive signals other than responses from the mobile phone 3. That is, at present, the mobile phone 2 is in the middle of calling the mobile phone 3, and during this time, for example, by receiving a call signal from another mobile phone, the mobile phone 2 communicates with a mobile phone other than the mobile phone 3. It is possible to prevent a call from being made between.

  When the data analysis control unit 21 is notified by the data analysis unit 19 that the data received from the wireless LAN line reception unit 13 is audio data from the mobile phone 3, the data analysis control unit 21 sends the audio data to the data analysis unit 19. An instruction to output to the telephone line data converter 22 is issued. The telephone line data conversion unit 22 performs predetermined data conversion on the voice data provided from the data analysis unit 19 and converts the voice data into the same format as the voice data received via the radio telephone line.

  Further, at this time, the data analysis control unit 21 recognizes that the mobile phone 2 is performing wireless LAN communication with the mobile phone 3. Therefore, even when a call from another mobile phone is made to the mobile phone 2 under this state, the data analysis unit 21 is communicating with the mobile phone 3, and therefore the call signal Call processing is not performed for.

  The voice data converted by the telephone line data conversion unit 22 is output to the voice output conversion unit 23, converted into an audible format, and then output to the voice output unit 24. In this way, the user of the mobile phone 2 can check the voice input from the voice input unit 45 of the mobile phone 3 through the voice output unit 24.

  Then, when the user of the mobile phone 2 responds to the output sound from the sound output unit 24, when the sound is input from the sound input unit 15, the input sound is sent to the input sound conversion unit 16 and the wireless telephone line Is converted into a format that can be sent via. At this time, as described above, since the communication method selection unit 17 is selected to perform communication using the wireless LAN line, the voice data output from the input voice conversion unit 16 is the wireless LAN data conversion unit 18. Is output. The wireless LAN data converter 18 converts the data format of the audio data so that the audio data is transmitted to the mobile phone 3 via the wireless LAN line. The wireless LAN data conversion unit 18 may convert the data structure into the format shown in FIG.

  The voice data converted by the wireless LAN data converter 18 is sent to the wireless LAN line transmitter 14 and transmitted to the mobile phone 3 via the wireless LAN line.

  The mobile phone 3 receives the audio data from the mobile phone 2 via the wireless LAN line in the wireless LAN line receiving unit 43, as in the case where the mobile phone 2 receives the audio data from the mobile phone 3. The received data is sent to the data analysis unit 49 for data analysis. As described above, the type of the data can be determined by analyzing the header information 72 of the data structure transmitted via the wireless LAN. In this case, since it is audio data transmitted from the mobile phone 2, the header information 72 includes information indicating that it is audio data, and the data analysis unit 49 determines that this information is audio data. Then, information to that effect is output to the data analysis control unit 51. At this time, the transmission source information 73 is also output to the data analysis control unit 51.

  Since the data analysis control unit 51 recognizes that the mobile phone 3 is performing wireless LAN communication with the mobile phone 2 as described above, the data received from the wireless LAN line receiving unit 43 is stored in the mobile phone 2. If it is confirmed that the voice data is transmitted from, the data analysis unit 49 is instructed to output the voice data to the telephone line data conversion unit 52. The telephone line data conversion unit 52 performs predetermined data conversion on the voice data provided from the data analysis unit 49 and converts the voice data into the same format as the voice data received via the radio telephone line.

  The voice data converted by the telephone line data conversion unit 52 is output to the voice output conversion unit 53, converted into an audible format, and then output to the voice output unit 54. In this way, the user of the mobile phone 3 can check the voice input from the voice input unit 15 of the mobile phone 2 through the voice output unit 54.

  As described above, when a call is made from the mobile phone 2 to the mobile phone 3, the voice input by the user of the mobile phone 3 in response to the call is transmitted to the mobile phone 2 via the wireless LAN line. The voice transmitted and inputted by the user of the mobile phone 2 in response to the voice of the user of the mobile phone 3 is transmitted via the wireless LAN line and confirmed by the user of the mobile phone 3. In this way, communication (call) between mobile phones can be performed via the wireless LAN line.

  Next, a case will be described in which the mobile phone 3 disconnects the wireless LAN line in such a connected state. This corresponds to a procedure for completing a call between the user of the mobile phone 2 and the user of the mobile phone 3.

  A user of the mobile phone 3 operates the operation unit 55 to instruct to disconnect the wireless LAN line. The operation content of the operation unit 55 is sent to the operation control unit 67. When the operation control unit 67 confirms that the operation content is an instruction to disconnect the connected wireless LAN line, the communication control unit 65 is informed. An instruction to disconnect the connected wireless LAN line is given.

  The communication control unit 65 transmits a disconnection signal to the wireless LAN data conversion unit 48 via the communication method selection unit 47 (the wireless LAN line is selected by the communication method selection unit 47) and data analysis control. Information indicating that the wireless LAN line is being disconnected is transmitted to the unit 51. The disconnection signal is converted into a format that can be transmitted by the wireless LAN in the wireless LAN data converter 48, and this data is transmitted from the wireless LAN line transmitter 44 to the mobile phone 2. When the data analysis control unit 51 recognizes that the wireless LAN line is disconnected, the data analysis control unit 51 instructs the data discarding unit 63 to output the voice data from the mobile phone 2 received from the wireless LAN line receiving unit 43 after this time. give. Thereby, after the user of the mobile phone 3 gives a disconnection instruction, the audio data transmitted from the mobile phone 2 is not output from the audio output unit 54.

  On the other hand, the cellular phone 2 receives the disconnection signal from the cellular phone 3 by the wireless LAN line receiving unit 13. The received data is sent to the data analysis unit 19 to determine the type of data. The data analysis unit 19 analyzes the header information 72 and the transmission source information 73 and outputs the analysis result to the data analysis control unit 21. When the data analysis control unit 21 confirms that the received data from the wireless LAN line receiving unit 13 is a disconnection signal from the mobile phone 3, the signal indicating that the disconnection processing unit 39 has received a disconnection instruction from the mobile phone 3 Is output. At this time, the data analysis control unit 21 recognizes that the mobile phone 2 is not connected to any other mobile phone.

  In addition, the data analysis control unit 21 outputs a signal to the communication control unit 35 that the mobile phone 2 is in a disconnected state.

  The disconnection processing unit 39 instructs the display processing unit 29 to perform display processing for displaying on the screen of the mobile phone 2 that there has been a disconnection instruction from the mobile phone 3. The display processing unit 29 performs display processing based on an instruction from the cutting processing unit 39, then gives the processed signal to the display unit 31, and the display unit 31 carries the signal based on the signal from the display processing unit 29. The content indicating that the wireless LAN line from the telephone 3 has been disconnected is displayed.

  Further, the cutting processing unit 39 gives a cutting sound indicating the cutting to the audio output converting unit 23. The audio output conversion unit 23 converts the cutting sound given from the cutting processing unit 39 into a form that can be heard, and then outputs it to the audio output unit 24. As a result, the user perceives that a cutting sound is sounding from the audio output unit 24 and recognizes that the mobile phone 2 has been disconnected.

  In this way, the disconnection process is performed on both the cellular phone 3 that has issued the disconnection instruction and the cellular phone 2 that has received the disconnection signal, and the mobile phone 3 returns to a state where both are not connected via the wireless LAN line. Under this state, when receiving a call signal from another mobile phone, the data analysis control unit 21 or the data analysis control unit 51 recognizes that it is not connected to the other mobile phone. The above-described calling process is performed in the mobile phone.

  Note that when the user of the mobile phone 2 gives an instruction to disconnect the wireless LAN line while the mobile phone 2 and the mobile phone 3 are connected via the wireless LAN line, the same operation as described above can be performed. is there.

(3-2 Calls via wireless LAN connection via fixed line)
Next, in the case where the mobile phone 2 tries to make a call to the mobile phone 3, the mobile phone 3 is not registered in the wireless LAN utilization partner station storage unit 28 of the mobile phone 2. A case where the fixed telephone 4 having the above function is registered in the wireless LAN utilization partner station storage unit 28 will be described.

  The user operates the operation unit 25 of the mobile phone 2 to give an instruction to call the mobile phone 3. The operation content of the operation unit 25 is sent to the operation control unit 37, and when the operation control unit 37 confirms that the operation content is a call instruction for the mobile phone 3, call processing is performed on the mobile phone 3. Is given to the communication control unit 35.

  The communication control unit 35 instructs the communication method selection unit 17 to confirm whether the telephone number that is the call destination is registered in the wireless LAN utilization partner station storage unit 28. In this case, since the mobile phone 3 is not registered in the wireless LAN using partner station storage unit 28 of the mobile phone 2, it is further confirmed whether the fixed phone 4 is registered in the wireless LAN using partner station storage unit 28.

  When the communication method selection unit 17 confirms that the fixed telephone 4 is registered in the wireless LAN usage partner station storage unit 28, the communication method selection unit 17 connects to the fixed telephone 4 through the wireless LAN connection, and uses the public network from the fixed telephone 4. And decide to communicate. As in the case of direct connection, the communication method selection unit 17 may maintain the current communication method until an instruction to confirm the communication method is given. In this case, it is assumed that the wireless LAN connection is currently selected with the fixed telephone 4 and the wireless LAN line is still selected.

  The communication control unit 35 outputs information indicating that a call signal is being sent to the mobile phone 3 to the data analysis control unit 21. This is a measure for preventing the calling process from being performed when a call is made to the mobile phone 2 from another mobile phone while the mobile phone 3 is being called, as will be described later.

  When the communication method selection unit 17 selects to call the mobile phone 3 from the public network via the fixed telephone 4 by wireless LAN connection, the wireless LAN data conversion unit 18 The calling signal, which is the content to be called, is converted into a format that can be transmitted to the public telephone 4 via the wireless LAN, and this data is transmitted from the wireless LAN line transmission unit 14 to the fixed telephone 4.

  At this time, in the wireless LAN data conversion unit 18, it is assumed that the call destination is the mobile phone 3, and information that the wireless LAN connection is made to the fixed telephone 4 as the relay station is created. Then, as will be described later, when the fixed telephone 4 receives the data, the data analyzing unit 89 recognizes the content that is an instruction to connect to the mobile telephone 3 that is the communication destination via the fixed telephone 4. It is the composition which is done.

  At this time, the configuration of the call signal transmitted from the wireless LAN line transmission unit 14 may be, for example, as illustrated in FIG. FIG. 10 is an example of a data structure showing a configuration of a call signal for calling the mobile phone 3 from the mobile phone 2 via the fixed phone 4.

  The data structure shown in FIG. 10 includes relay destination information 75 in addition to the data shown in FIG. In this case, since the fixed telephone 4 is designated as the relay destination, the telephone number “0604” of the fixed telephone 4 is attached to this information. Even when relaying is not performed via a fixed telephone, an area for describing relay destination information is included as a data structure, and in this case, for example, a null value may be described. Further, in the case of fixed via wireless LAN connection, the header information 72 may be additionally written with the contents to that effect. In this case, the fixed telephone 4 can recognize that the fixed telephone 4 is information described to have a function as a relay station by analyzing the header information 72 by the data analysis unit 89. .

  On the other hand, the fixed telephone 4 receives a calling signal from the mobile phone 2 to the mobile phone 3 by the wireless LAN line receiving unit 83. The received data is sent to the data analysis unit 89, and the content of the data is determined. When the data analysis unit 89 analyzes the header information 72 and the relay destination information 75 to confirm that the call signal is for the mobile phone 3, the data analysis unit 89 calls the mobile phone 3 through the public telephone line. The line data converter 92 generates data for the public telephone line, and this data is transmitted from the public telephone line transmitter 82 to the mobile phone 3 through the public telephone line and the wireless telephone line.

  The mobile phone 3 receives a call signal from the mobile phone 2 via the fixed telephone 4 via the wireless telephone line from the wireless telephone line receiver 41. When the wireless telephone line reception signal control unit 68 confirms that the mobile phone 3 is not communicating with another telephone set, the wireless telephone line reception signal control unit 68 gives an instruction to perform a calling process to the calling processing unit 66. Then, the call signal output from the call processing unit 66 is provided to the voice output conversion unit 53 to be converted into a format that can be heard by the user, and the converted voice signal is output from the voice output unit 54. The user perceives that a ringing tone is sounding from the voice output unit 54 and recognizes that a call has been made from another telephone.

  Further, the call processing unit 66 instructs the display processing unit 59 to perform a display process for displaying on the screen of the mobile phone 3 that there has been a call from the mobile phone 2. The display processing unit 59 performs display processing based on an instruction from the call processing unit 66, and then gives the processed signal to the display unit 61, and the display unit 61 carries the mobile phone based on the signal from the display processing unit 59. The content indicating that there has been a call from the telephone 2 is displayed.

  At this time, the information indicating that the call is from the fixed telephone 4 may be displayed on the display unit 61 together with the information indicating that the call is from the mobile phone 2.

  In addition, the call processing unit 66 outputs a signal to the communication control unit 65 indicating that it is waiting for a response to the call from the mobile phone 2. Further, the communication control unit 65 outputs to the data analysis control unit 51 that it is waiting for a response to the call from the mobile phone 2. This is a measure for preventing the calling process from being performed when a call is made from another mobile phone to the mobile phone 3 while a call is being made from the mobile phone 2 as described later. It is.

  As in the case of direct wireless LAN connection, the user of the mobile phone 3 receives a ringing sound output from the voice output unit 54 and a notification indicating that there is a call from the mobile phone 2 output to the display unit 61. It is perceived that there is a call from the mobile phone 2. When responding to the call, the operation control unit 67 is given a signal to respond to the call by operating the operation unit 55. When the operation control unit 67 recognizes that the given signal is a response signal to the call, the operation control unit 67 outputs the response signal to the communication control unit 65. When the communication control unit 65 recognizes that the transmitted response signal is a response signal for waiting for a response from the mobile phone 2, the communication control unit 65 uses the wireless telephone line to the communication method selection unit 47 via the fixed telephone 4. To instruct communication with the mobile phone 2.

  Note that the communication method selection unit 47 maintains the current communication method until an instruction to confirm the communication method is given. That is, at this time, it is assumed that the radio telephone line remains selected.

  Further, the communication control unit 65 outputs information indicating that wireless telephone communication is being performed with the fixed telephone 4 to the data analysis control unit 51. This is because call processing is performed when a call from another mobile phone is made to the mobile phone 3 during communication (call) with the fixed phone 4 via a wireless telephone line. It is a measure to prevent it.

  When the user inputs voice from the voice input unit 45, the input voice is sent to the input voice conversion unit 46 and converted into a format that can be transmitted via the wireless telephone line. At this time, since the communication method selection unit 47 is selected to perform communication via the radio telephone line as described above, the voice data output from the input voice conversion unit 46 is transmitted to the radio telephone line transmission unit 42. Then, it is transmitted from the public network to the fixed telephone 4 through the wireless telephone line.

  The fixed telephone 4 receives voice data from the mobile telephone 3 via the public telephone line at the public telephone line receiving unit 81. At this time, the received data is sent to the public telephone line reception signal control unit 107 to recognize that it is data sent from the mobile phone 3. Further, the communication control unit 104 confirms the state held by the data analysis control unit 91, so that the mobile phone 2 makes a call to the mobile phone 3, and the fixed phone 4 is used as the relay station. If the communication control unit 104 recognizes that the received data is received, the communication control unit 104 instructs the public telephone line reception signal control unit 107 to output the received data to the mobile phone 2.

  The public telephone line reception signal control unit 107 instructs the public telephone line reception unit 81 to output received data to the wireless LAN data conversion unit 88. Then, the wireless LAN data converter 88 converts the data into a format that can be transmitted by the wireless LAN, and the wireless LAN line transmitter 84 transmits the data to the mobile phone 2.

  At this time, the voice data transmitted from the mobile phone 3 transmitted from the wireless LAN line transmitter 84 includes the mobile phone 3 as the source information 73, the mobile phone 2 as the destination information 71, and the relay destination information. Each of the fixed telephones 4 is marked.

  In the mobile phone 2, the wireless LAN line receiving unit 13 receives the audio data transmitted from the fixed telephone 4 via the wireless LAN line. This received data is sent to the data analysis unit 19 for data analysis. At this time, by analyzing the relay destination information 75, the fixed telephone 4 is a relay station, and the content that the mobile phone 3 described in the source information 73 is the source and the header information 72 The content indicating that the data is voice data is recognized, and information indicating that is output to the data analysis control unit 21. At this time, the transmission source information 73 is also output to the data analysis control unit 21.

  As described above, the data analysis control unit 21 is preliminarily given information indicating that a call signal is being sent to the mobile phone 3 from the communication control unit 35 via the wireless LAN line. At this time, the data analysis control unit 21 instructs the data analysis unit 49 to output to the data discarding unit 63 all received data whose source information 73 does not indicate the mobile phone 3.

  In this way, the mobile phone 2 can be configured to be unable to receive signals other than responses from the mobile phone 3. That is, at present, the mobile phone 2 is in the middle of calling the mobile phone 3, and during this time, for example, by receiving a call signal from another mobile phone, the mobile phone 2 communicates with a mobile phone other than the mobile phone 3. It is possible to prevent a call from being made between.

  When the data analysis control unit 21 is notified by the data analysis unit 19 that the data received from the wireless LAN line reception unit 13 is audio data from the mobile phone 3, the data analysis control unit 21 sends the audio data to the data analysis unit 19. An instruction to output to the telephone line data converter 22 is issued. The telephone line data conversion unit 22 performs predetermined data conversion on the voice data provided from the data analysis unit 19 and converts the voice data into the same format as the voice data received via the radio telephone line.

  Further, at this time, the data analysis control unit 21 recognizes that the mobile phone 2 is performing wireless LAN communication with the mobile phone 3. Therefore, even when a call from another mobile phone is made to the mobile phone 2 under this state, the data analysis unit 21 is communicating with the mobile phone 3, and therefore the call signal Call processing is not performed for.

  The voice data converted by the telephone line data conversion unit 22 is output to the voice output conversion unit 23, converted into an audible format, and then output to the voice output unit 24. In this way, the user of the mobile phone 2 can check the voice input from the voice input unit 45 of the mobile phone 3 through the voice output unit 24.

  Then, when the user of the mobile phone 2 responds to the output sound from the sound output unit 24, when the sound is input from the sound input unit 15, the input sound is sent to the input sound conversion unit 16 and the wireless telephone line Is converted into a format that can be sent via. At this time, as described above, since the communication method selection unit 17 is selected to perform communication using the wireless LAN line, the voice data output from the input voice conversion unit 16 is the wireless LAN data conversion unit 18. Is output. The wireless LAN data converter 18 transmits the voice data so that the voice data is transmitted to the fixed telephone 4 via the wireless LAN line and further transmitted from the fixed telephone 4 to the mobile telephone 3 via the public telephone line. Data format conversion is performed on the data. The wireless LAN data conversion unit 18 may convert the data structure into the format shown in FIG.

  The audio data converted by the wireless LAN data converter 18 is sent to the wireless LAN line transmitter 14 and transmitted to the fixed telephone 4 via the wireless LAN line.

  In the fixed telephone 4, the wireless LAN line receiving unit 83 receives voice data from the mobile phone 2 via the wireless LAN line. The received data is sent to the data analysis unit 89 for data analysis. When the data analysis unit 89 analyzes the header information 72 and the relay destination information 75 to confirm that the voice signal is from the mobile phone 2 to the mobile phone 3, the data analysis unit 89 transfers the voice signal to the mobile phone 3 through the public telephone line. Therefore, the telephone line data conversion unit 92 generates public telephone line data, and the public telephone line transmission unit 82 transmits this data to the mobile phone 3 through the public telephone line and the wireless telephone line.

  The mobile phone 3 receives an audio signal from the mobile phone 2 via the fixed phone 4 via the radio phone line from the radio phone line receiver 41. The radio telephone line reception signal control unit 68 confirms from the communication control unit 65 that the mobile phone 3 is communicating with the fixed telephone 4 through the radio telephone line, and converts the received voice data into a voice output conversion unit. The audio signal is output from the audio skill unit 54 after being converted to a form that can be heard. In this way, the user of the mobile phone 3 can check the voice input from the voice input unit 15 of the mobile phone 2 through the voice output unit 54.

  As described above, even when a call is made from the mobile phone 2 to the mobile phone 3 via the fixed phone 4, the voice input by the user of the mobile phone 3 in response to the call is After being transmitted to the fixed telephone 4 through the public telephone line, it is further transmitted from the fixed telephone 4 to the mobile phone 2 via the wireless LAN line. In addition, after the voice input by the user of the mobile phone 2 in response to the voice of the user of the mobile phone 3 is transmitted to the fixed telephone 4 via the wireless LAN line, the voice is further transmitted via the public telephone line and the wireless telephone line. And is confirmed by the user of the mobile phone 3. In this way, communication (call) between mobile phones via the fixed phone 4 can be performed.

  Next, a case will be described in which the mobile phone 3 disconnects communication in such a connected state. This corresponds to a procedure for completing a call between the user of the mobile phone 2 and the user of the mobile phone 3.

  The user of the mobile phone 3 operates the operation unit 55 to give an instruction to disconnect the current communication line. The operation content of the operation unit 55 is sent to the operation control unit 67. When the operation control unit 67 confirms that the operation content is an instruction to disconnect the connected line, the communication control unit 65 is currently connected. Give instructions to disconnect the wireless telephone line.

  The communication control unit 65 transmits a disconnection signal to the wireless telephone line transmission unit 42 via the communication method selection unit 47 (the wireless telephone line is selected by the communication method selection unit 47). Then, a disconnection signal is transmitted from the wireless telephone line transmission unit 42 to the fixed telephone 4 via the wireless telephone line and the public telephone line.

  The fixed telephone 4 receives a disconnection signal from the mobile telephone 3 via the public telephone line at the public telephone line receiving unit 81. When the public telephone line reception signal control unit 107 confirms that the disconnection signal has been received, the wireless LAN line (connection between the fixed telephone 4 and the mobile phone 2) connected to the communication control unit 104 is disconnected. Give instructions to do.

  The communication control unit 104 transmits a disconnection signal to the wireless LAN data conversion unit 88 via the communication method selection unit 87 and informs the data analysis control unit 91 that the wireless LAN line is being disconnected (disconnection signal). ). At this time, it is recognized by the instruction from the communication control unit 104 that the mobile phone 2 is connected through the wireless LAN line, while the mobile phone 3 is connected through the public telephone line. Good thing.

  This disconnection signal is converted into a format that can be transmitted by the wireless LAN in the wireless LAN data conversion unit 88, and this data is transmitted from the wireless LAN line transmission unit 84 to the mobile phone 2. In addition, when the data analysis control unit 91 recognizes that the wireless LAN line is disconnected, an instruction to output the voice data from the cellular phone 2 received from the wireless LAN line receiving unit 83 after this time to the data discarding unit 102 give. As a result, the audio data transmitted from the mobile phone 2 is not transmitted to the mobile phone 3 thereafter.

  On the other hand, the cellular phone 2 receives the disconnection signal from the fixed phone 4 by the wireless LAN line receiver 13. The received data is sent to the data analysis unit 19 to determine the type of data. The data analysis unit 19 analyzes the header information 72, the transmission source information 73, and the relay destination information 75, and outputs the analysis result to the data analysis control unit 21. When the data analysis control unit 21 confirms that the received data from the wireless LAN line receiving unit 13 is a disconnection signal from the fixed telephone 4 (mobile phone 3), the disconnection processing unit 39 receives a disconnection instruction from the mobile phone 3. A signal indicating that this is output. At this time, the data analysis control unit 21 recognizes that the mobile phone 2 is not connected to any other mobile phone.

  In addition, the data analysis control unit 21 outputs a signal to the communication control unit 35 that the mobile phone 2 is in a disconnected state.

  The disconnection processing unit 39 instructs the display processing unit 29 to perform display processing for displaying on the screen of the mobile phone 2 that there has been a disconnection instruction from the mobile phone 3. The display processing unit 29 performs display processing based on an instruction from the cutting processing unit 39, then gives the processed signal to the display unit 31, and the display unit 31 carries the signal based on the signal from the display processing unit 29. The content that the connection from the telephone 3 is disconnected is displayed.

  Further, the cutting processing unit 39 gives a cutting sound indicating the cutting to the audio output converting unit 23. The audio output conversion unit 23 converts the cutting sound given from the cutting processing unit 39 into a form that can be heard, and then outputs it to the audio output unit 24. As a result, the user perceives that a sound is being cut from the audio output unit 24 and recognizes that the mobile phone 3 has been disconnected.

  In this way, the disconnection process is performed on both the mobile phone 3 that has issued the disconnect instruction and the mobile phone 2 that has received the disconnect signal, and the mobile phone 3 returns to a state in which both are not connected. Under this state, when receiving a call signal from another mobile phone, the data analysis control unit 21 or the data analysis control unit 51 recognizes that it is not connected to the other mobile phone. The above-described calling process is performed in the mobile phone.

  If neither the mobile phone 3 nor the fixed phone 4 is registered in the wireless LAN utilization partner station storage unit 28 of the mobile phone 2, the mobile phone 2 applies for a call to the mobile phone 3. Then, the connection is made between the mobile phone 2 and the mobile phone 3 via a normal wireless telephone line.

  In the above description, the application for the call from the mobile phone 2 to the mobile phone 3 has been described. However, even if the mobile phone 2 applies for a call to another fixed phone (not shown), the fixed phone 4 If the mobile phone 2 and the mobile phone 2 are communicable via a wireless LAN line, the mobile phone 2 relays the fixed telephone 4 via the wireless LAN line, and then connects to the fixed telephone that is the call destination from the public telephone line. It does n’t matter.

(3-3. Telephone calls using handset)
Next, a procedure for responding to this call by the mobile phone 2 which is a mobile device target mobile phone will be described with respect to a phone call made to the fixed phone 4. In the following, a case where a call is made from the mobile phone 3 to the fixed phone 4 will be described. However, the call source does not need to be a mobile phone compatible with a wireless LAN, but is a normal mobile phone or a fixed phone. It doesn't matter.

  The fixed telephone 4 receives the calling signal from the mobile telephone 3 from the public telephone line receiving unit 81. When the public telephone line reception signal control unit 107 confirms that the call signal has been received, the public telephone line reception signal control unit 107 gives an instruction to the call processing unit 105 to perform call processing. The call processing unit 105 sends a call signal to the voice output conversion unit 93 and gives an instruction to display to the display processing unit 99 that a call from the mobile phone 3 has been received.

  The voice output conversion unit 93 converts the calling signal into a format that can be heard by the user, and sends it to the voice output unit 94. At this time, a ringing tone is generated from the voice output unit 94.

  At this time, the communication control unit 104 gives an instruction to confirm whether or not the handset target mobile phone is registered in the wireless LAN utilization partner station storage unit 88. At this time, if the mobile device target mobile phone is not registered in the wireless LAN utilization partner station storage unit 88, only the ringing sound is generated from the voice output unit 94, and the wireless LAN connection is not performed.

  On the other hand, when the mobile phone 2 is registered as a mobile device target mobile phone in the wireless LAN utilization partner station storage unit 88, this call signal is also transmitted to the mobile phone 2 via the wireless LAN line. Note that whether or not to perform this operation may be configured in advance by the fixed telephone 4.

  At this time, the radio telephone line reception signal control unit 107 gives an instruction to the call processing unit 105 to perform call processing on the mobile phone 2. The call processing unit 105 gives a call signal to the communication control unit 104, converted into wireless LAN data by the wireless LAN data conversion unit 88 from the communication control unit 104, and then transmitted to the mobile phone 2 from the wireless LAN line transmission unit 84. Is done.

  The cellular phone 2 receives the calling signal given from the fixed phone 4 by the wireless LAN line receiving unit 13. Since the following procedures are the same as those described above for the fixed wireless LAN connection, detailed description thereof will be omitted.

  When the mobile phone 2 responds to this call, a voice signal is sent from the wireless LAN line transmitter 14 to the fixed phone 4. When the fixed telephone 4 is received by the wireless LAN line receiving unit 83, the data analysis unit 89 confirms that the voice data is a response to the call, and the public telephone line transmission unit 82 sends the call to the mobile phone 3 that is the call source. Send it out. At this time, the call processing unit 105 may be instructed to stop the generation of the call signal.

  In this way, when a call to the fixed telephone 4 is answered from the portable unit target mobile telephone, a call is established by the same procedure as the above-described fixed via wireless LAN connection. On the other hand, when a call is made to the mobile phone 2 and a response is made from the fixed phone 4, the call signal for the mobile phone 2 may be stopped. At this time, the wireless LAN connection between the mobile phone 2 and the fixed telephone 4 may be disconnected by sending a disconnection signal from the fixed telephone 4 to the mobile telephone 2 via the wireless LAN line.

  As described above, according to the configuration of the present invention, when the user calls the other party's mobile phone, whether the connection is made using the wireless LAN line or the wireless telephone line. If the wireless LAN line is in a usable state, a signal for calling to the other party's mobile phone is transmitted via the wireless LAN line, and if the wireless LAN line is in an unusable state. Since a signal for calling the other party mobile phone is transmitted via the wireless telephone line, there is no need to be particularly aware of which line is used to call the other party.

  At this time, the other party's mobile phone called through the wireless LAN line also performs communication through the wireless LAN line by performing normal response processing. There is no need to be particularly aware of whether or not

  For this reason, the configuration is such that communication is performed via the wireless LAN line without any particular attention to the other party in the environment that can be connected via the wireless LAN line. Opportunities improve.

  In addition, when a fixed telephone compatible with a wireless LAN line is present in an area that can be connected to the portable device target portable telephone through a wireless LAN line, the portable telephone may have a function as a portable unit of the fixed telephone. it can. For this reason, it is possible to respond to the incoming call to the fixed telephone with the mobile telephone, and convenience is improved. At this time, connection by a wireless LAN line is performed, and the use opportunity of the wireless LAN line is improved.

  Conversely, when a call is made from the mobile phone targeted for the slave unit to another phone, if the wireless LAN connection is possible with the fixed phone, the public phone line can be connected from the mobile phone via the fixed phone. You can make a call. Even in this case, the use opportunity of the wireless LAN line is improved.

  In this way, in a state where the wireless LAN line can be used, by making a call with another mobile phone via the wireless LAN line, compared with a case where a call is made via the wireless telephone line. , Communication costs can be reduced.

  Furthermore, even when a disaster or the like occurs, even when the wireless telephone line is congested and difficult to connect, a call is made with a partner that can be connected via the wireless LAN line via the wireless LAN line. There is also an effect that it is possible.

  In the above description, the mobile phone 2 is configured to create the local station identifier data, and the mobile phone 3 is configured to generate communicable data. However, each mobile phone has both of these functions. It may be configured. Similarly, the fixed telephone 4 may create its own station identifier data in addition to the communicable data.

  In this case, each mobile phone and fixed phone is stored in the wireless LAN utilization partner station storage unit as a partner station that can be connected via a wireless LAN line at the time of receiving communicable data transmitted from another telephone. Can be.

  A cellular phone 3a shown in FIG. 11 has a configuration including a local station identifier data creation unit 121 that creates identifier data of the cellular phone 3a itself in addition to the configuration of the cellular phone 3 shown in FIG.

  In other words, in the configuration of the mobile phone 2 shown in FIG. 3, when the communicable data transmitted from another mobile phone is received, the mobile phone that is the transmission source of the communicable data is automatically set as a partner capable of wireless LAN connection. In contrast to the configuration stored in the wireless LAN usage partner station storage unit, each mobile phone has a function of creating communicable data as shown in FIG. Since the communication method determining unit 57 can determine whether or not the other station is to be connected, the fact that the station is to be connected only via a wireless telephone line is registered in the partner station identifier storage unit 56 in advance. be able to.

  In addition, since the partner station that is not registered in the partner station identifier storage unit 56 is also determined as a partner that does not use the wireless LAN line in the communication method determining unit 57, the user selects a partner to be connected through the wireless LAN line. It can be limited.

  At this time, the communicable data creation unit 64 receives information from the communication control unit 65 to acquire the current state of the mobile phone, and in the case of communication with another phone, the wireless LAN When a “busy” signal is sent to the other party that can be connected via the line and communication with another telephone is not being performed, A signal “online” indicating that the connection is not being established may be transmitted.

  At this time, when the wireless LAN receiving unit 43 receives the “busy” signal, the mobile phone that is the transmission source may display on the display unit 61 that “busy”.

  In this way, the user can visually confirm that a call is being made with another telephone without calling the other party via a wireless LAN line. Then, when a call with another telephone is terminated and an “online” signal transmitted from the mobile phone is received, a display indicating that “call is possible” may be displayed on the display unit 61.

  At this time, each mobile phone may display the above-mentioned “busy” or “callable” display on the display unit with a picture, symbol, color, etc. other than characters, and a sound to that effect is sounded. It may be output from the output unit.

  The fixed telephone 4 may also create its own station identifier data in addition to the communicable data. At this time, the wireless LAN communication procedure between the mobile phone 2 and the fixed phone 4 is the same as the wireless LAN communication procedure between the mobile phone 2 and the mobile phone 3a described above, and thus the description thereof is omitted.

  Furthermore, when there is a call from another telephone, the call processing unit 66 may instruct to vibrate the mobile phone.

  Further, the above-described cellular phone and the wireless LAN module mounted on the fixed phone may be configured to be built in the phone or may be configured to be externally attached.

  Further, in the above-described embodiment, the wireless communication line other than the wireless telephone line has been described as being limited to the wireless LAN line. However, a mobile phone that can be connected to another wireless communication line such as Bluetooth (registered trademark) is used. The same effect can be obtained in the wireless communication system including the same.

  Furthermore, in the above-described embodiment, the description has been given only for the telephone as a component, but the present invention is not limited to this, and communication that can use both a wireless telephone line and a wireless communication line other than the wireless telephone line. Any terminal can be used.

  The wireless communication system of the present invention can be suitably used for a portable communication terminal with a built-in or external wireless LAN module and a fixed communication terminal.

These are the radio | wireless communications systems of one Embodiment of this invention. These are flowcharts which show operation | movement until a telephone call is performed in the radio | wireless communications system in FIG. These are block diagrams which show the structure of the mobile telephone which is one Embodiment of this invention. These are block diagrams which show another structure of the mobile telephone which is one Embodiment of this invention. These show an example of the data structure registered in the other party identifier memory | storage part in FIG. These are an example of the list display screen of the other station which is a wireless LAN utilization other party state displayed on the display part of a mobile telephone. Is a data structure of data transmitted / received via a wireless LAN. These are block diagrams which show the structure of the fixed telephone which is one Embodiment of this invention. These show an example of the data structure registered in the other party identifier memory | storage part in FIG. These are examples of the data structure which shows the structure of the calling signal which calls the mobile telephone 3 from the mobile telephone 2 via the fixed telephone 4. FIG. These are the block diagrams which show another structure of the mobile telephone which is one Embodiment of this invention. These are figures which show the structure of the conventional network system. These are tables which show the structure of the terminal information with which the conventional communication terminal is provided.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wireless communication system 2 Mobile phone 3 Mobile phone 4 Fixed telephone 5 Base station 6 Public network 7 Base station 8 Wireless telephone line 9 Public telephone line 10 Building 111 Wireless LAN line 112 Wireless telephone line 113 Wireless LAN line

Claims (19)

A first wireless line constituted by a wireless telephone line and a second wireless line constituted by a wireless communication line other than the first wireless line, wherein the first wireless line and Connectable state with another communication terminal that is connectable to both of the second wireless lines or that is connectable to both of the second wireless line and a public telephone line via the second wireless line A first determination unit that determines whether or not the communication terminal is connected, and information on other communication terminals that are determined to be connectable via the second wireless line by the first determination unit A first connectable partner storage unit, a first communication terminal comprising:
A second communication terminal configured to be connectable to a public telephone line and the second wireless line;
A third communication terminal connectable to at least the first wireless line,
When performing communication between the first communication terminal and the third communication terminal,
When the third communication terminal is not registered in the first connectable partner storage unit and the second communication terminal is registered, the second wireless terminal transmits the second wireless terminal to the second wireless terminal. The second communication terminal is relayed via a line, and further connected from the second communication terminal to the third communication terminal via a public telephone line and the first wireless line. Wireless communication system. The second communication terminal is configured to be able to register in advance a communication terminal that can be used as a slave of the second communication terminal,
When performing communication between the first communication terminal and the third communication terminal,
When the third communication terminal is not registered in the first connectable partner storage unit and the second communication terminal is registered, and used as a slave unit of the second communication terminal If the first communication terminal is registered as a possible terminal, the second communication terminal is relayed from the first communication terminal via the second wireless line, and the second communication terminal 2. The wireless communication system according to claim 1, wherein the communication terminal is connected to the third communication terminal via a public telephone line and the first wireless line. A first wireless line constituted by a wireless telephone line and a second wireless line constituted by a wireless communication line other than the first wireless line, wherein the first wireless line and Connectable state with another communication terminal that is connectable to both of the second wireless lines or that is connectable to both of the second wireless line and a public telephone line via the second wireless line A first determination unit that determines whether or not the communication terminal is connected, and information on other communication terminals that are determined to be connectable via the second wireless line by the first determination unit A first connectable partner storage unit, a first communication terminal comprising:
A second communication terminal configured to be connectable to a public telephone line and the second wireless line;
And a fourth communication terminal that can be connected to at least a public telephone line,
When performing communication between the first communication terminal and the fourth communication terminal,
When the fourth communication terminal is not registered in the first connectable partner storage unit and the second communication terminal is registered, the second wireless terminal transmits the second wireless terminal to the second wireless terminal. A wireless communication system, wherein the second communication terminal is relayed via a line, and further connected from the second communication terminal to the fourth communication terminal via a public telephone line. The second communication terminal is configured to be able to register in advance a communication terminal that can be used as a slave of the second communication terminal,
When performing communication between the first communication terminal and the fourth communication terminal,
When the fourth communication terminal is not registered in the first connectable partner storage unit and the second communication terminal is registered, and is used as a slave unit of the second communication terminal If the first communication terminal is registered as a possible terminal, the second communication terminal is relayed from the first communication terminal via the second wireless line, and the second communication terminal The wireless communication system according to claim 3, wherein the communication terminal is connected to the fourth communication terminal via a public telephone line. A first communication terminal configured to be connectable to a first wireless line configured by a wireless telephone line and a second wireless line configured by a wireless communication line other than the first wireless line;
Another communication terminal having a configuration connectable to a public telephone line and the second wireless line and connected to both the first wireless line and the second wireless line, and the second wireless terminal. A second determination unit that determines whether or not a connection is possible via a second wireless line, and the second determination unit determines that the connection is possible via the second wireless line. A second connectable partner storage unit for registering information of other communication terminals, a second communication terminal comprising:
A third communication terminal connectable to at least the first wireless line,
When applying for communication from the third communication terminal to the second communication terminal,
When the first communication terminal is registered in the second connectable partner storage unit, the second communication from the third communication terminal via the first wireless line and public telephone line A wireless communication system characterized by calling a terminal and calling the first communication terminal from the second communication terminal via the second wireless line.   6. The wireless communication according to claim 5, wherein a connection is established with the third communication terminal via the second communication terminal by responding to a call to the first communication terminal. system. The second communication terminal is configured to be able to register in advance a communication terminal that can be used as a slave of the second communication terminal,
When applying for communication from the third communication terminal to the second communication terminal,
The first communication terminal is registered as a terminal that can be used as a handset of the second communication terminal when the first communication terminal is registered in the second connectable partner storage unit The second communication terminal is called from the third communication terminal via the first wireless line and the public telephone line, and the second wireless terminal is connected to the second wireless line. The wireless communication system according to claim 5 or 6, wherein the first communication terminal is called through the wireless communication system. A first communication terminal configured to be connectable to a first wireless line configured by a wireless telephone line and a second wireless line configured by a wireless communication line other than the first wireless line;
Another communication terminal having a configuration connectable to a public telephone line and the second wireless line and connected to both the first wireless line and the second wireless line, and the second wireless terminal. A second determination unit that determines whether or not a connection is possible via a second wireless line, and the second determination unit determines that the connection is possible via the second wireless line. A second connectable partner storage unit for registering information of other communication terminals, a second communication terminal comprising:
And a fourth communication terminal that can be connected to at least a public telephone line,
When applying for communication from the fourth communication terminal to the second communication terminal,
When the first communication terminal is registered in the second connectable partner storage unit, the fourth communication terminal calls the second communication terminal via a public telephone line, and A wireless communication system, wherein the first communication terminal is called from the two communication terminals via the second wireless line.   9. The wireless communication according to claim 8, wherein a connection is established with the fourth communication terminal through the second communication terminal by responding to a call to the first communication terminal. system. The second communication terminal is configured to be able to register in advance a communication terminal that can be used as a slave of the second communication terminal,
When applying for communication from the fourth communication terminal to the second communication terminal,
The first communication terminal is registered as a terminal that can be used as a handset of the second communication terminal when the first communication terminal is registered in the second connectable partner storage unit When the second communication terminal is called, the second communication terminal is called from the fourth communication terminal via the public telephone line, and the first communication terminal is called from the second communication terminal via the second wireless line. 10. The wireless communication system according to claim 8, wherein the communication terminal is called. It can be connected to a public telephone line and a second wireless line that is a wireless communication line other than a wireless telephone line,
Whether or not a communication terminal that is connectable to both the first wireless line and the second wireless line configured by a wireless telephone line is in a connectable state via the second wireless line A second determination unit that performs determination, and a second connection that registers information of another communication terminal that is determined to be connectable via the second wireless line by the second determination unit A partner storage unit,
Between a first communication terminal that can be connected to both the first wireless line and the second wireless line, and a third communication terminal that is a terminal other than the terminal and the first communication terminal. When a connection is made
When the first communication terminal is registered in the second connectable partner storage unit, the first communication terminal communicates with the first communication terminal via the second wireless line, and further uses a public telephone line. The communication terminal relays the connection between the first communication terminal and the third communication terminal by communicating with the third communication terminal via the communication terminal. It can be connected to a public telephone line and a second wireless line that is a wireless communication line other than a wireless telephone line,
Whether or not a communication terminal that is connectable to both the first wireless line and the second wireless line configured by a wireless telephone line is in a connectable state via the second wireless line A second determination unit that performs determination, and a second connection that registers information of another communication terminal that is determined to be connectable via the second wireless line by the second determination unit A partner storage unit,
When the first communication terminal that can be connected to both the first wireless line and the second wireless line is registered in the second connectable partner storage unit,
When an application for communication is made from a communication terminal other than the terminal and the first communication terminal, a connection is made to the first communication terminal via the second wireless line. A communication terminal that performs call processing of the first communication terminal. It has a display that can be visually confirmed by the user,
The communication terminal according to claim 11 or 12, wherein information on the other communication terminal registered in the second connectable partner storage unit is displayed on the display unit. The second determination unit is
When communicable data, which is information transmitted from the other communication terminal and indicates that it is determined that connection is possible via the second wireless line, is received via the second wireless line, 14. The connection according to claim 11, wherein it is determined that a connection with the other communication terminal that is a transmission source of the communicable data is possible via the second wireless line. Communication terminal.   The identifier data, which is individual information for identifying each communication terminal, is sequentially transmitted to the other communication terminals existing at positions connectable via the second wireless line. The communication terminal in any one of Claims 11-14. Among the other communication terminals, the other communication terminal that permits connection with the communication terminal via the second wireless line when it is in a connectable state via the second wireless line The other party identifier storage unit in which the information is registered in advance by the user,
The second determination unit is
When identifier data that is information transmitted from the other communication terminal and is individual information for identifying each of the other communication terminals is received via the second wireless line, the received identifier data And confirms whether or not the information of the other communication terminal that is the transmission source is registered in the counterpart station identifier storage unit and, if registered, the other communication terminal and the second wireless line The communication terminal according to claim 11, wherein the communication terminal is determined to be in a connectable state via the communication terminal. The second determination unit is
When communicable data, which is information transmitted from the other communication terminal and indicates that it is determined that connection is possible via the second wireless line, is received via the second wireless line, Confirming whether or not the information of the other communication terminal that is the transmission source of the received communicable data is registered in the counterpart station identifier storage unit, and if registered, with the other communication terminal The communication terminal according to claim 16, wherein it is determined that the connection is possible via the second wireless line.   Information indicating that connection to the other communication terminal determined to be connectable via the second wireless line by the second determination unit is possible via the second wireless line. The communication terminal according to claim 16 or 17, wherein the communicable data is transmitted through the second wireless line.   The identifier data, which is individual information for identifying each communication terminal, is sequentially transmitted to the other communication terminals existing at positions connectable via the second wireless line. The communication terminal according to any one of claims 16 to 18.

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