JP4160519B2 - Information transmission / reception system - Google Patents

Description

  The present invention relates to an information transmission / reception system for transmitting / receiving information between a first communication terminal and a second communication terminal sharing the same telephone number.

  There is a need to use a plurality of communication terminals according to the usage and usage scene. Here, when one user tries to use a plurality of communication terminals, a contract for a line is required for each communication terminal.

Here, when a line contract is required for each of a plurality of communication terminals, a different telephone number is assigned to each communication terminal. Managing and using different line numbers for the user is burdensome in terms of economy and convenience. Therefore, there is a technique for sharing one line number among a plurality of communication terminals (see, for example, Patent Document 1 below).
JP-A-11-27391

  In the technique described in Patent Document 1, it is necessary for the caller side to specify a destination communication terminal with an additional number, which is no different from using a different line number from the viewpoint of user convenience. That is, substantial line sharing of a plurality of communication terminals has not yet been achieved.

  Accordingly, an object of the present invention is to provide an information transmission / reception system for transmitting / receiving information between a first communication terminal and a second communication terminal sharing the same telephone number.

  An information transmission / reception system of the present invention is an information transmission / reception system for transmitting / receiving information between a first communication terminal and a second communication terminal sharing the same telephone number, and (1) first communication Request receiving means for receiving operation request information transmitted from the terminal and requesting the second communication terminal to perform a predetermined operation; and (2) second communication based on the received operation request information. Instruction information generating means for generating operation instruction information for causing the terminal to perform a predetermined operation; and (3) a first communication terminal using the generated operation instruction information for communication. An operation instruction transmitting means for transmitting to the second communication terminal by a second bearer different from the bearer; and (4) a second communication terminal transmitted from the second communication terminal in response to the transmission of the operation instruction information. Operation indicating the result of the communication terminal performing the specified operation Comprising an operation result receiving means for receiving the result information, and a result transmission means for transmitting (5) the operation result information the received, to the first communication terminal by the first bearer.

  According to the information transmission / reception system of the present invention, the first communication terminal transmits the operation instruction information to the second communication terminal using the second bearer different from the first bearer with which the first communication terminal is communicating. It is possible to communicate with the second communication terminal without interrupting communication with. Therefore, even if the first communication terminal and the second communication terminal share the same telephone number, information can be transmitted and received between them.

  An information transmission / reception system of the present invention is an information transmission / reception system for transmitting / receiving information between a first communication terminal and a second communication terminal sharing the same telephone number, and (6) Second communication Request receiving means for receiving transmission request information for requesting transmission of predetermined information to the first communication terminal, transmitted from the terminal; and (7) first based on the received transmission request information. Status acquisition means for acquiring the communication status of the communication terminal, and (8) status transmission means for transmitting the acquired communication status to the second communication terminal.

  According to the information transmission / reception system of the present invention, when transmitting predetermined information from the second communication terminal to the first communication terminal, the communication status of the first communication terminal is acquired and transmitted to the second communication terminal. Therefore, for example, it is possible to notify the second communication terminal of which bearer the first communication terminal is communicating with.

  In the information transmission / reception system of the present invention, a bearer determination unit that determines a bearer for transmitting predetermined information based on a communication status of the first communication terminal transmitted by the state transmission unit, and a predetermined bearer with the determined bearer It is also preferable to include information transmission means for transmitting information. Since the bearer is determined according to the communication status of the first communication terminal and predetermined information is transmitted by the determined bearer, the predetermined information is transmitted from the second communication terminal even when the first communication terminal is communicating. Can be sent.

  In the information transmission / reception system of the present invention, the bearer determining means is different from the first bearer when the communication status indicates that the first communication terminal is communicating with the first bearer. It is also preferable to determine two bearers as bearers for transmitting predetermined information. When the first communication terminal is communicating, the second communication terminal can transmit predetermined information using a second bearer different from the first bearer that is communicating.

  ADVANTAGE OF THE INVENTION According to this invention, the information transmission / reception system for transmitting / receiving information between the 1st communication terminal and the 2nd communication terminal which share the same telephone number can be provided.

  The knowledge of the present invention can be easily understood by considering the following detailed description with reference to the accompanying drawings shown for illustration only. Subsequently, embodiments of the present invention will be described with reference to the accompanying drawings. Where possible, the same parts are denoted by the same reference numerals, and redundant description is omitted.

  An information transmission / reception system 1a according to an embodiment of the present invention will be described with reference to FIG. An information transmission / reception system 1a shown in FIG. 1 includes an outgoing / incoming control device 10, an information transmission / reception device 50, a gateway exchange 20, exchanges 30 to 31, regional registers 351 to 352, a mobile phone 40 (first communication terminal), and an in-vehicle terminal. 41 (second communication terminal). The exchanges 30 to 31 are configured to be able to communicate with other exchanges or networks via the gateway exchange 20. A regional register 351 corresponds to the exchange 30, and a regional register 352 corresponds to the exchange 31. In this embodiment, it is assumed that the mobile phone 40 is in the area 30a under the switch 30 and the in-vehicle terminal 41 is in the area 31a under the switch 31. Note that the description of the base stations under the exchanges 30 to 31 is omitted. In the present embodiment, it is assumed that the mobile phone 40 and the in-vehicle terminal 41 share the same telephone number.

  Next, the outgoing / incoming control device 10 will be described. The call origination / termination control device 10 is capable of information communication with each of the gateway exchange 30, the exchanges 30-31, and the regional registers 351-352, and predetermined information according to the outgoing / incoming requests of the gateway exchange 20 and the exchanges 30-31. , And exchanges necessary information with the regional registers 351 to 352. In addition, the outgoing / incoming call control device 10 is configured to be able to transmit / receive information to / from the information transmitting / receiving device 50.

  The outgoing / incoming control device 10 includes, as functional components, an outgoing request receiving unit 101, an incoming request receiving unit 102, a terminal state acquisition unit 103 (state acquisition unit), a terminal state determination unit 104, and an outgoing response unit 105. A receiving terminal specifying unit 106, an incoming call response unit 107, a transmission request transmission / reception unit 108 (transmission request reception unit, status transmission unit), and a home register 151. Subsequently, each component will be described.

  The call request receiving unit 101 is a part that receives call request information transmitted in response to a call request from the mobile phone 40 (vehicle terminal 41). More specifically, when the mobile phone 40 (in-vehicle terminal 41) performs a call origination operation, the destination of the call is sent to the exchange 30 (exchange 31) via a base station existing in the area 30a (area 31a) where the mobile phone 40 is located. A request for transmission including information (telephone number or the like) specifying the communication terminal is made. The exchange 30 (the exchange 31) transmits call request information to the call origination / reception control device 10 in response to the call request. The transmission request receiving unit 101 receives this transmission request information and outputs it to the terminal state acquisition unit 103.

  The incoming request receiving unit 102 is a part that receives incoming request information for a specific telephone number. For example, when a call is made from a communication terminal (not shown) to a telephone number shared by the mobile phone 40 and the in-vehicle terminal 41, the information is transmitted to the gateway exchange 20. The gateway exchange 20 transmits a request for reading information related to the destination telephone number to the outgoing / incoming control apparatus 10 as an incoming request. The incoming request receiving unit 102 receives this incoming request information and outputs it to the terminal state acquisition unit 103.

  The terminal status acquisition unit 103 is a part that, when information is output from the transmission request reception unit 101, performs a transmission operation, acquires the status of the communication terminal, and outputs it to the terminal status determination unit 104. In order to describe the terminal state acquisition unit 103 more specifically, a case where a call is made from the mobile phone 40 will be described as an example. When the mobile phone 40 makes a call, the telephone number and the chip number of the mobile phone 40 are transmitted from the exchange 30 to the outgoing / incoming control device 10. This telephone number is a number shared by the mobile phone 40 and the in-vehicle terminal 41. The chip number is a number associated with the telephone number, and different numbers are used for the mobile phone 40 and the in-vehicle terminal 41. This chip number may be recorded on cards (IC cards such as UIM cards) inserted into the mobile phone 40 and the in-vehicle terminal 41, respectively. In this case, when a card is replaced, a chip number and a user ID which will be described later are replaced.

  The terminal status acquisition unit 103 searches for information stored in the home register 151 based on the telephone number and chip number output from the call request receiving unit 101. An example of information stored in the home register 151 will be described with reference to FIG. According to the example shown in FIG. 2, “line number”, “contract”, “service setting”, “chip number”, “rank”, “user ID”, “regional register”, and “incoming call setting” are stored in the home register 151 in association with each other. Has been. “Contract” is information indicating whether or not there is a contract for sharing one line number among a plurality of mobile phones and communication terminals. “Service setting” is information indicating whether the service start is set after the contract. The “chip number” is information added to the line number when a corresponding mobile phone or communication terminal transmits. “Rank” is information indicating the rank of communication conditions of the corresponding mobile phone or communication terminal (details will be described later). “User ID” is an ID unique to the corresponding mobile phone or communication terminal. “Regional register” is information for specifying a regional register corresponding to an exchange in which a corresponding mobile phone or communication terminal exists. “Incoming call setting” is information indicating a mobile phone or a communication terminal corresponding to an incoming call.

  The “rank” described above will be described with reference to FIG. Note that the information illustrated in FIG. 3 may be separately stored in the home register 151. According to the example shown in FIG. 3, the bearers that can be handled differ depending on whether the “rank” is “basic” or “addition”. “Cross mark” in FIG. 3 indicates that communication by the corresponding bearer cannot be performed, “White circle” indicates that communication by the corresponding bearer is possible, and “Black filled circle” is set in advance. Indicates that the device can communicate with the bearer. In other words, the bearer set in “Incoming call setting” in FIG. 2 indicates that communication with the device is possible. "Voice call" is a voice call by circuit switching, "Unlimited digital" is a data communication by circuit switching, "Packet 1" is a general packet communication, "Packet 2" is in a closed network “Video phone” indicates voice and video communication by circuit switching, and “SMS” indicates short message service.

  Returning to FIG. 1, the terminal status acquisition unit 103 searches the information stored in the home register 151 based on the telephone number and chip number output from the call request receiving unit 101, and the mobile phone corresponding to the line number Or a communication device, which specifies a user ID corresponding to a chip number other than the chip number output from the transmission request receiving unit 101 (that is, the chip number of the transmission source). Using the identified user ID, the terminal status acquisition unit 103 requests a communication status corresponding to the user ID from the corresponding regional register.

  Here, examples of information stored in the area registers 351 to 352 are shown in FIGS. 4 (A) to 4 (B). 4A shows an example of information stored in the region register 351, and FIG. 4B shows an example of information stored in the region register 352. According to the example shown in FIGS. 4A to 4B, the regional registers 351 to 352 have “line number”, “contract”, “chip number”, “temporary ID”, “roaming number”, “current state”, respectively. Are stored in association with each other. The “line number” and “chip number” are information for specifying a mobile phone or a communication terminal located in an area covered by the exchange to which the regional registers 351 to 352 correspond. “Temporary ID” is a number for identifying a mobile phone or a communication terminal in the area. The “roaming number” is a disposable number used when an incoming call is received. “Current status” is information for identifying whether the corresponding mobile phone or communication terminal is in a communication state, and if it is in a communication state, which bearer is performing communication.

  Returning to FIG. 1, when the communication status corresponding to the user ID is requested to the corresponding regional register using the user ID specified by the terminal state acquisition unit 103, the regional register reads the corresponding “current state”. Respond as the communication status. The terminal state acquisition unit 103 receives this response and outputs it to the terminal state determination unit 104.

  The terminal status acquisition unit 103 is also a part that, when information is output from the incoming request reception unit 102, performs an incoming call operation, acquires the status of the communication terminal, and outputs it to the terminal status determination unit 104. In order to describe the terminal state acquisition unit 103 more specifically, a case where an incoming call is received at a telephone number shared by the mobile phone 40 and the in-vehicle terminal 41 will be described as an example.

  The terminal status acquisition unit 103 searches for information stored in the home register 151 based on the line number output from the call request receiving unit 101. An example of information stored in the home register 151 is as already described with reference to FIG. That is, the terminal state acquisition unit 103 specifies a user ID and a region register corresponding to the telephone number. And the terminal status acquisition part 103 requests | requires to respond to the communication condition of a corresponding user ID with respect to each area register. The regional register reads the stored “current state” and responds as a communication state. The terminal state acquisition unit 103 receives this response and outputs it to the terminal state determination unit 104.

  In the case of a call origination request, the terminal state determination unit 104 is a part that determines whether or not the mobile phone or communication terminal that has requested the call can call based on the communication status acquired by the terminal state acquisition unit 103. For example, when the mobile phone 40 makes a transmission request, if the in-vehicle terminal 41 sharing the line number with the mobile phone 40 is not communicating with the same bearer, the mobile phone 40 determines that the call can be made. The terminal state determination unit 104 outputs the determination result to the transmission response unit 105.

  In the case of an incoming call request, the terminal state determination unit 104 is also a part that specifies a mobile phone or a communication terminal that can receive a call based on the communication status acquired by the terminal state acquisition unit 103. For example, when there is an incoming call request for a line number shared by the mobile phone 40 and the terminal 41, a communication terminal that can handle a bearer corresponding to the incoming call request and is not communicating is determined. Further, when a specific bearer is set as a destination, the set communication terminal is determined. The terminal state determination unit 104 outputs the determination result to the receiving terminal identification unit 106.

  The transmission response unit 105 is a part that outputs information permitting transmission of a mobile phone or a communication terminal that requests transmission when the determination result of the terminal state determination unit 104 can be transmitted.

  The receiving terminal specifying unit 106 specifies a mobile phone or a communication terminal that is determined to be able to receive an incoming call when the determination result of the terminal state determination unit 104 is available, and receives the incoming call to the specified mobile phone or communication terminal This is the part that acquires the incoming call information. More specifically, the receiving terminal specifying unit 106 acquires the roaming number of the mobile phone or communication terminal determined to be able to receive from the regional register as the incoming information and outputs it to the incoming response unit 107.

  The incoming call response unit 107 is a part that transmits the roaming number output from the incoming terminal identification unit 106 to the gateway exchange 20 as incoming information.

  The transmission request transmission / reception unit 108 is a part that receives transmission request information that is transmitted from the in-vehicle terminal 41 and that requests transmission of predetermined information to the mobile phone 40 and outputs the transmission request information to the terminal state acquisition unit 103. The terminal status acquisition unit 103 acquires the communication status of the mobile phone 40 according to the transmission request information and outputs it to the transmission request transmission / reception unit 108. The transmission request transmission / reception unit 108 transmits this communication status to the in-vehicle terminal 41. Here, the predetermined information refers to information indicating the state of the vehicle detected by the in-vehicle terminal 41, for example.

  Subsequently, the information transmitting / receiving apparatus 50 will be described with reference to FIG. The information transmitting / receiving device 50 is physically a computer or a computer system provided with a CPU, a memory, a hard disk, a communication interface, and the like. The information transmitting / receiving apparatus 50 includes, as functional components, a request receiving unit 501 (request receiving unit), an instruction information generating unit 502 (instruction information generating unit), an operation instruction transmitting unit 503 (operation instruction transmitting unit), and a result. A reception unit 504 (operation result reception unit), a result transmission unit 505 (result transmission unit), and an information storage unit 551 are provided. Subsequently, each component will be described.

  The request receiving unit 501 is a part that receives operation request information that is transmitted from the mobile phone 40 and requests the in-vehicle terminal 41 to perform a predetermined operation. The request reception unit 501 outputs the received operation request information to the instruction information generation unit 502.

  The instruction information generation unit 502 is a part that generates operation instruction information for causing the in-vehicle terminal 41 to perform a predetermined operation based on the operation request information received by the request reception unit 501. The instruction information generation unit 502 outputs the generated operation instruction information to the operation instruction transmission unit 503.

  The operation instruction transmission unit 503 is a part that transmits the operation instruction information generated by the instruction information generation unit 502 to the in-vehicle terminal 41. In this case, if the cellular phone 40 transmits information using a packet communication bearer, the operation instruction transmission unit 503 transmits information using a circuit-switched bearer. If the mobile phone 40 transmits information using a circuit-switched bearer, the operation instruction transmission unit 503 transmits information using a packet communication bearer. As described above, the operation instruction transmission unit 503 transmits the operation instruction information using a bearer (second bearer) different from the bearer (first bearer) used by the mobile phone 40 for communication.

  The result receiving unit 504 is a part that receives operation result information indicating a result of the in-vehicle terminal 41 performing a predetermined operation, which is transmitted from the in-vehicle terminal 41 in response to the transmission of the operation instruction information from the operation instruction transmitting unit 503. . The result receiving unit 504 stores the received operation result information in the information storage unit 551.

  The result transmission unit 505 is a part that transmits the operation result information received by the result reception unit 504 to the mobile phone 40. More specifically, the result transmission unit 505 reads the operation result information stored in the information storage unit 551 in response to a request from the mobile phone 40, and the operation result of the bearer that the mobile phone 40 uses for communication. Information is transmitted to the mobile phone 40.

  Subsequently, the in-vehicle terminal 41 will be described with reference to FIG. The in-vehicle terminal 41 is physically a communication terminal provided with a CPU, memory, hard disk, communication means, sensor, and the like. The in-vehicle terminal 41 includes, as functional components, an operation instruction reception unit 411, an operation unit 412, an operation result transmission unit 413, a vehicle state acquisition unit 414, a transmission request unit 415, and a bearer determination unit 416 (bearer determination). Means) and an information transmission unit 417 (information transmission means). Subsequently, each component will be described.

  The operation instruction receiving unit 411 is a part that receives operation instruction information transmitted from the information transmitting / receiving apparatus. The operation instruction receiving unit 411 outputs the received operation instruction information to the operation unit 412.

  The operation unit 412 is a part that performs a predetermined operation based on the operation instruction information. For example, if the operation instruction information is for closing the door, the vehicle door is closed. The operation unit 412 generates operation result information for reporting the operation result, and transmits the operation result information to the operation result transmission unit 413.

  The operation result transmission unit 413 is a part that transmits the operation result information output from the operation unit 412 to the information transmitting / receiving device 50.

  The vehicle state acquisition unit 414 is a part that acquires the state of the vehicle on which the in-vehicle terminal 41 is mounted. For example, it detects that the vehicle has moved, the door has been opened, and the like, and acquires the state of the vehicle based on the detection result. When the vehicle state acquisition unit 414 determines that the vehicle state has changed (when it is determined that an abnormality has occurred), the vehicle state acquisition unit 414 outputs vehicle state information as predetermined information to the information transmission unit 417, Outputs an instruction signal to perform a predetermined operation.

  The transmission request unit 415 transmits transmission request information for requesting transmission of predetermined information (information acquired by the vehicle state acquisition unit 414) to the mobile phone 40 to the transmission request transmission / reception unit 108 of the outgoing / incoming control device 10. It is. As described above, the transmission request transmission / reception unit 108 outputs the transmission request information to the terminal state acquisition unit 103 and transmits the communication state of the mobile phone 40 acquired by the terminal state acquisition unit 103 to the in-vehicle terminal 41. This communication status is received by the transmission request unit 415 of the in-vehicle terminal 41 and output to the bearer determination unit 416.

  The bearer determination unit 416 is a part that determines a bearer for transmitting predetermined information based on the communication status of the mobile phone 40 received by the transmission request unit 415. For example, if the mobile phone 40 is not communicating, the bearer determination unit 416 determines to transmit predetermined information using a packet communication bearer. Even when the mobile phone 40 is communicating with a circuit-switched bearer, the bearer determination unit 416 determines to transmit predetermined information using a packet communication bearer. The bearer hair shame unit 416 outputs the determined bearer to the information transmission unit 417.

  The information transmission unit 417 is a part that transmits predetermined information using the bearer determined by the bearer determination unit 416. The information transmission unit 417 transmits predetermined information to the information transmission / reception device 50.

  Subsequently, the operation of the information transmission / reception system 1a will be described. First, an example in which the in-vehicle terminal 41 is operated from the mobile phone 40 will be described with reference to FIG. The setting of the data receiving destination is transmitted from the mobile phone 40 to the outgoing / incoming control device 10 (S01). The call origination / termination control device 10 rewrites the information (see FIG. 2) stored in the home register 151 and sets the data communication destination of the packet communication bearer to be the in-vehicle terminal 41. The outgoing / incoming control device 10 transmits a notification of setting completion to the mobile phone 40 (S02).

  The user transmits operation request information for causing the in-vehicle terminal 41 to perform a predetermined operation from the mobile phone 40 to the information transmitting / receiving device 50 (S03). When transmitting the operation request information, data may be input on the web. The predetermined operation includes causing the in-vehicle terminal 41 to perform some operation, reading out information stored in the in-vehicle terminal 41, and the like. The request receiving unit 501 of the information transmitting / receiving apparatus 50 receives this operation request information and outputs it to the instruction information generating unit 502. The instruction information generation unit 502 generates operation instruction information and outputs it to the operation instruction transmission unit 503.

  The operation instruction transmission unit 503 of the information transmitting / receiving device 50 transmits the operation instruction information to the in-vehicle terminal 41 (S04). The operation instruction receiving unit 411 of the in-vehicle terminal 41 receives this operation instruction information and outputs it to the operation unit 412. The operation unit 412 of the in-vehicle terminal 41 performs a predetermined operation according to the operation instruction information (S05). The operation result transmission unit 413 of the in-vehicle terminal 41 transmits the operation result to the information transmitting / receiving device 50 as operation result information (S06). The result receiving unit 504 of the information transmitting / receiving apparatus 50 receives the operation result information and stores it in the information storage unit 551.

  The user requests the information transmitter / receiver 50 to transmit operation result information from the mobile phone 40 (S07). The result transmitting unit 505 of the information transmitting / receiving apparatus 50 transmits the operation result information to the mobile phone 40 (S08). Therefore, the user can receive and display the operation result information with the mobile phone 40 (S09).

  Subsequently, an example in which information is transmitted from the in-vehicle terminal 41 to the mobile phone 40 will be described with reference to FIG. The vehicle state acquisition unit 414 of the in-vehicle terminal 41 detects an abnormality of the vehicle, and outputs predetermined information including the content of the abnormality to the transmission request unit 415 and the information transmission unit 417 (S11). The reply request unit 415 transmits transmission request information to the outgoing / incoming call control device 10 (S12). The transmission request transmission / reception unit 108 of the outgoing / incoming call control device 10 receives this transmission request information and outputs it to the terminal state acquisition unit 103. The terminal status acquisition unit 103 acquires the communication status of the mobile phone 40 (S13). The terminal status acquisition unit 103 outputs the acquired communication status of the mobile phone 40 to the transmission request transmission / reception unit 108. The transmission request transmission / reception unit 108 transmits this communication status to the in-vehicle terminal 41 (S14).

  The transmitted communication status is received by the transmission request unit 415 of the in-vehicle terminal 41 and output to the bearer determination unit 416. The bearer determination unit 416 determines a bearer to communicate based on the communication status (S15). The bearer determination unit 416 outputs the determined bearer to the information transmission unit 417. The information transmitting unit 417 transmits the predetermined information acquired by the vehicle state acquiring unit 414 to the information transmitting / receiving device 50 using the determined bearer (S16).

  The result receiving unit 504 of the information transmitting / receiving apparatus 50 receives this predetermined information and stores it in the information storage unit 551. The information transmitting / receiving device 50 transmits an e-mail to the effect that predetermined information has been acquired to the mobile phone 40 (S17). A request for transmitting predetermined information is transmitted from the mobile phone 40 (S18). In response to this transmission request, the result transmission unit 505 retrieves predetermined information stored in the information storage unit 551 and transmits it to the mobile phone 40 (S19). Therefore, the user can receive and display predetermined information with the mobile phone 40 (S20).

  According to the present embodiment, since the mobile phone 40 transmits the operation instruction information to the in-vehicle terminal 41 using a second bearer different from the first bearer with which communication is being performed, the communication with the mobile phone 40 is not interrupted. Communication with the terminal 41 can be performed. Therefore, even when the mobile phone 40 and the in-vehicle terminal 41 share the same telephone number, information can be transmitted and received between them.

It is a figure which shows the structure of the information transmission / reception system which is embodiment of this invention. It is a figure which shows the example of the information stored in the home register of FIG. It is a figure which shows the example of the information stored in the home register of FIG. It is a figure which shows the example of the information stored in the area register of FIG. It is a figure which shows the structure of the information transmitter / receiver of FIG. It is a figure which shows the structure of the vehicle-mounted terminal of FIG. It is a figure for demonstrating operation | movement of the information transmission / reception system which is embodiment of this invention. It is a figure for demonstrating operation | movement of the information transmission / reception system which is embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1a ... Information transmission / reception system, 10 ... Transmission / reception control device, 20 ... Gateway exchange, 30-31 ... Exchange, 30a-31a ... Area, 351-352 ... Regional register, 40 ... Mobile phone, 41 ... In-vehicle terminal, 101 ... Transmission Request receiving unit, 102 ... Incoming request receiving unit, 103 ... Terminal state acquiring unit, 104 ... Terminal state determining unit, 105 ... Outgoing response unit, 106 ... Incoming terminal specifying unit, 107 ... Incoming response unit, transmission request transmitting / receiving unit 108, 151: Home register.

Claims (3)

An information transmission / reception system for transmitting / receiving information between a first communication terminal and a second communication terminal sharing the same telephone number,
An operation request for requesting the second communication terminal capable of using a plurality of bearers to perform a predetermined operation transmitted from the first communication terminal capable of using a plurality of bearers by the first bearer. Request receiving means for receiving information;
Instruction information generating means for generating operation instruction information for causing the second communication terminal to perform the predetermined operation based on the received operation request information;
Among the plurality of bearers that can be used by the second communication terminal , the generated operation instruction information is a second bearer that is different from the first bearer that the first communication terminal uses for communication . Operation instruction transmitting means for transmitting to the second communication terminal;
Operation result receiving means for receiving operation result information indicating a result of the second communication terminal performing the predetermined operation, transmitted from the second communication terminal in response to transmission of the operation instruction information;
A result transmitting means for transmitting the received operation result information to the first communication terminal by the first bearer;
An information transmission / reception system comprising: An information transmission / reception system for transmitting / receiving information between a first communication terminal and a second communication terminal sharing the same telephone number,
Request receiving means for receiving transmission request information for requesting transmission of predetermined information to the first communication terminal, transmitted from the second communication terminal;
Based on the received transmission request information, status acquisition means for acquiring the communication status of the first communication terminal;
Status transmitting means for transmitting the acquired communication status to the second communication terminal;
A bearer determining unit that determines a bearer for transmitting the predetermined information based on a communication status of the first communication terminal transmitted by the state transmitting unit;
Information transmitting means for transmitting the predetermined information by the determined bearer;
An information transmission / reception system comprising: The bearer determination means selects a second bearer different from the first bearer when the communication status indicates that the first communication terminal is communicating with the first bearer. The information transmission / reception system according to claim 2 , wherein a bearer for transmitting the information is determined.

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