JP2008028827A - Portable terminal exchange system, portable terminal exchange method, and cellular phone number registration method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easy-to-use portable terminal exchange system while suppressing costs for a cellular phone. <P>SOLUTION: A portable terminal exchange system 1 is constituted by connecting a radio portable terminal 2 and a private branch exchange 4 through a private branch radio network 5, and also by connecting a cellular phone communication card 3 and the private branch exchange 4 through a public telephone network 6 and a cellular phone network 7. The radio portable terminal 2 is a portable terminal basically used in a private branch, and communicates with the private branch exchange 4 by the private branch radio communication. The cellular phone communication card 3 communicates with the private branch exchange 4 by the cellular phone communication by being shared in the department or between the persons in charge and by being connecting to a slot of the radio portable terminal 2. The private branch exchange 4 memorizes an extension number or a cellular phone number for every portable terminal, registers or erases the cellular phone number in accordance with attachment and detachment of the cellular phone communication card 3 to the radio portable terminal 2. When an incoming call is received, the incoming call is transferred using the extension number or the cellular phone number in accordance with the position of the radio portable terminal 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mobile terminal exchange system for registering a mobile phone number of a mobile terminal when going out and transferring an incoming call to an extension number or a mobile phone number according to the position of the mobile terminal.

2. Description of the Related Art Conventionally, there are communication systems having a public telephone network, a private telephone network, and portable terminals that can communicate with any of them. For example, with the spread of mobile terminals not only in the public telephone network but also in the local telephone network, a similar wireless system is adopted between the public telephone network and the local telephone network, and the same mobile terminal is connected to the public telephone network and the local telephone network. Sharing with a telephone network has been studied (see Patent Document 1).
Japanese Patent Laid-Open No. 7-212826

  On the other hand, in a portable terminal exchange system using a local PHS (Personal Handy-phone System), when the owner of the local PHS is out of the office, in order to transfer the telephone call to the local PHS to the mobile phone, When going out, it is necessary to set the transfer destination mobile phone number in the private branch exchange. Especially when sharing a mobile phone within a department or between people in charge in order to reduce the cost of purchasing a mobile phone or basic charges, the mobile phone used by each person changes every time they go out. Need to be set up in the private branch exchange.

  The present invention has been made in view of the above problems, and a main object of the present invention is to provide an easy-to-use portable terminal exchange system while suppressing costs associated with a mobile phone.

  In order to solve the above-described problems, the present invention is a portable terminal exchange system, in which a terminal unique number is stored in a first storage unit and private wireless communication is possible, and a portable terminal is stored in a second storage unit. A communication card that stores a telephone number and is connected to the terminal to enable mobile phone communication by the terminal, and the terminal is capable of local wireless communication and the terminal to which the communication card is connected And a private branch exchange capable of mobile phone communication, wherein the private branch exchange stores a third storage unit that stores a terminal unique number, an extension number, and a dial-in number for each terminal, and the communication When the terminal specific number and the mobile phone number are received from the terminal connected to a card, the mobile phone stores the mobile phone number in the third storage unit so as to correspond to the terminal specific number When there is an incoming call to the talk number registration unit and the private branch exchange, the extension number or the mobile phone number of the call forwarding destination terminal is referred to by referring to the third storage unit from the extension number or dial-in number included in the incoming call If a telephone number is specified and the terminal is within the range where local wireless communication is possible, the incoming call is transferred to the terminal by private wireless communication using the specified extension number, and the terminal is within the range where private wireless communication is possible If it is outside, it is provided with the incoming call transfer part which transfers an incoming call to the said terminal by the mobile telephone communication using the specified mobile phone number.

  According to this configuration, a communication card for a shared mobile phone is prepared without assigning one dedicated mobile phone to one person, and the mobile phone to the private branch exchange when the communication card is connected to the terminal. By automatically registering the number, it can be used as if it were a personal mobile phone. Also, by sharing a mobile phone communication card, purchase costs and basic charges can be reduced.

The present invention is also a portable terminal exchange system, wherein the private branch exchange stores the terminal unique number from the terminal from which the communication card has been removed, and is stored in the third storage unit. A mobile phone number deleting unit that invalidates the mobile phone number corresponding to the terminal unique number is further provided.
According to this configuration, when the communication card is removed from the terminal, the mobile phone number from the private branch exchange is automatically invalidated so that the communication card after use can be easily cleaned up.

  Further, the present invention is a portable terminal exchange system, wherein an extension number is stored in a first storage unit, and a mobile phone number is stored in a second storage unit, a terminal capable of private wireless communication, A communication card that enables mobile phone communication by the terminal by being connected to the terminal, and local wireless communication is possible with the terminal, and mobile phone communication is further performed with the terminal to which the communication card is connected. A private branch exchange that is capable of storing a third storage unit that stores an extension number and a dial-in number for each terminal, and the extension number from the terminal to which the communication card is connected. When the mobile phone number is received, the third storage unit stores the mobile phone number so as to correspond to the extension number, and the private branch exchange receives an incoming call. The extension number or dial-in number included in the incoming call refers to the third storage unit to identify the extension number and mobile phone number of the terminal of the call forwarding destination, and the terminal can perform local wireless communication. If it is within the range, the incoming call is transferred to the terminal by private wireless communication using the specified extension number, and if the terminal is outside the range where private wireless communication is possible, the mobile phone using the specified mobile phone number is transferred. And an incoming call transfer unit that transfers incoming calls to the terminal by telephone communication.

The present invention is also the portable terminal exchange system, wherein the private branch exchange stores the extension stored in the third storage unit when the extension number is received from the terminal from which the communication card has been removed. The mobile phone number deleting unit for invalidating the mobile phone number corresponding to the number is further provided.
According to this configuration, since the extension number is used as the terminal unique number, it is not necessary to set the terminal unique number separately from the extension number, and the data handled by the portable terminal exchange system can be reduced.

  The present invention includes a mobile terminal exchange method and a mobile phone number registration method. In addition, the problems disclosed in the present application and the solutions thereof will be clarified by the description of the best mode for carrying out the invention and the drawings.

  According to the present invention, it is possible to provide an easy-to-use portable terminal exchange system while suppressing costs associated with a cellular phone.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. The mobile terminal switching system according to the embodiment of the present invention registers a mobile phone number in a private branch exchange when a mobile phone communication card is connected to a wireless mobile terminal for private use, and when the private branch exchange receives an incoming call. The incoming call is transferred using an extension number or a mobile phone number according to the position of the mobile terminal. When the mobile phone communication card is removed from the wireless mobile terminal, the mobile phone number is deleted from the private branch exchange.

≪System configuration and overview≫
FIG. 1 is a diagram showing a configuration of a mobile terminal exchange system 1. The mobile terminal switching system 1 includes a wireless mobile terminal (terminal) 2, a mobile phone communication card (communication card) 3, and a private branch exchange 4 connected via a private wireless network 5, a public telephone network 6, and a mobile phone network 7. Configured. Specifically, the wireless portable terminal 2 and the private branch exchange 4 can communicate with each other via the private wireless network 5 using an extension number, and the portable telephone communication card 3 and the private branch exchange 4 are portable telephone numbers. It becomes possible to communicate via the public telephone network 6 and the mobile telephone network 7 by using.

  The wireless portable terminal 2 is a portable terminal that each person in charge has for personal use and is basically used on the premises. The wireless portable terminal 2 has a private PHS extension function, a wireless LAN (Local Area Network) function, and the like. To communicate with. The wireless LAN function is, for example, a free call function based on VoIP (Voice over Internet Protocol). The wireless mobile terminal 2 has a slot for connecting the mobile phone communication card 3, a state where the mobile phone communication card 3 is not connected and only on-premises wireless communication is possible, and the mobile phone communication card 3 is connected. Both private wireless communication and mobile phone communication are possible.

  The mobile phone communication card 3 is shared within a department or between persons in charge, and is connected to a slot of the wireless mobile terminal 2 to realize a mobile phone function and enable communication with the private branch exchange 4. The mobile phone function is, for example, a flat-rate call function using PHS. The mobile phone communication card 3 is realized by a CF (Compact Flash: registered trademark) card of a public wireless network.

  The private branch exchange 4 stores a terminal unique number, an extension number, and a mobile phone number for each wireless mobile terminal 2, and responds to the position of the wireless mobile terminal 2 when an incoming call is received from the private wireless network 5 or the public telephone network 6. This is an exchange that transfers incoming calls using an extension number or mobile phone number. The private wireless network 5 is a network that enables communication between the wireless portable terminal 2 and the private branch exchange 4. The public telephone network 6 and the mobile phone network 7 are networks that enable communication between the mobile phone communication card 3 and the private branch exchange 4. The public telephone network 6 is realized by a telephone network of NTT (Nippon Telegraph and Telephone Corporation), for example. The cellular phone network 7 is realized by a mobile communication control station, a radio base station, or the like.

  FIG. 2 is a diagram showing the configuration of the wireless mobile terminal 2 and the mobile phone communication card 3. The wireless portable terminal 2 includes a communication unit 21, a display unit 22, an operation unit 23, a storage unit (first storage unit) 24, a card connection unit 25, and a processing unit 26. The communication unit 21 communicates with the private branch exchange 4 via the private wireless network 5. The display unit 22 displays predetermined data according to instructions from the processing unit 26, and is realized by a liquid crystal display or the like. The operation unit 23 is for operating the wireless portable terminal 2 and is realized by an operation button or the like. The storage unit 24 stores a terminal unique number and an extension number of the wireless portable terminal 2, and is realized by a nonvolatile storage device such as a hard disk device or a flash memory. The card connection unit 25 is a slot for connecting the mobile phone communication card 3 and is realized by, for example, a CF (registered trademark) card slot on the back of the wireless mobile terminal 2. The processing unit 26 performs overall control so as to realize the function of the wireless portable terminal 2 by performing processing while exchanging data with each unit. The processing unit 26 is realized by a CPU (Central Processing Unit) executing a program stored in a predetermined memory.

  The mobile phone communication card 3 includes a communication unit 31, a storage unit (second storage unit) 32, a terminal connection unit 33, and a processing unit 34. The communication unit 31 communicates with the private branch exchange 4 via the mobile phone network 7 and the public telephone network 6. The storage unit 32 stores a mobile phone number and the like, and is realized by a nonvolatile storage device such as a flash memory. The terminal connection unit 33 is a part that is inserted into a slot or the like that is the card connection unit 25 of the wireless portable terminal 2 and is realized by a plug-in terminal or the like. The processing unit 34 performs overall control so as to realize the function of the mobile phone communication card 3 by performing processing while exchanging data with each unit. The processing unit 34 is realized by the CPU executing a program stored in a predetermined memory.

  FIG. 3 is a diagram showing the configuration of the private branch exchange 4. The private branch exchange 4 includes an extension communication unit 41, a public communication unit 42, a processing unit 43, and a storage unit (third storage unit) 44. The extension communication unit 41 is connected to the local wireless network 5 and communicates with the communication unit 21 of the wireless portable terminal 2. The public communication unit 42 is connected to the public telephone network 6 and further communicates with the communication unit 31 of the mobile phone communication card 3 via the mobile phone network 7. The processing unit 43 performs overall control so as to realize the function of the private branch exchange 4 by performing processing while exchanging data with each unit. The processing unit 43 is realized by the CPU executing a program stored in a predetermined memory. The storage unit 44 stores a terminal unique number, an extension number, a dial-in number, and the like for each terminal, and is realized by a non-volatile storage device such as a hard disk device or a flash memory.

  The processing unit 43 includes an overall processing unit 431, a mobile phone number registration unit 432, a mobile phone number deletion unit 433, and an incoming call transfer unit 434. The overall processing unit 431 activates the other units in the processing unit 43 in response to an event that has occurred (for example, detection of an incoming call by the extension communication unit 41 or the public communication unit 42). Control the flow of processing. In addition, messages and data are exchanged by controlling interfaces between the extension communication unit 41, the public communication unit 42 and the storage unit 44, and other units in the processing unit 43. The overall control unit 43 is a program module called a so-called kernel or scheduler.

  The mobile phone number registration unit 432, the mobile phone number deletion unit 433, and the incoming call transfer unit 434 are program modules that realize specific functions of the private branch exchange 4 by operating under the control of the overall control unit 431. is there. The mobile phone number registration unit 432 is stored when the mobile phone communication card 3 is connected to the wireless mobile terminal 2 and the extension communication unit 41 receives the terminal unique number or the extension number and the mobile phone number from the wireless mobile terminal 2. The mobile phone number is stored in the unit 44 so as to correspond to the terminal unique number or the extension number. When the mobile phone communication card 3 is removed from the wireless portable terminal 2 and the terminal unique number or extension number is received from the wireless portable terminal 2, the mobile phone number deleting unit 433 is a terminal unique number stored in the storage unit 44. Alternatively, the mobile phone number corresponding to the extension number is invalidated. When there is an incoming call via the local wireless network 5 or the public telephone network 6, the incoming call transfer unit 434 uses the extension number if the incoming wireless mobile terminal 2 is within a predetermined range. The incoming call is transferred to the wireless portable terminal 2 via the mobile phone 2. If the wireless portable terminal 2 is outside the predetermined range, the incoming call is transferred to the wireless portable terminal 2 via the portable telephone network 7 using the portable telephone number. To do.

<< Data structure >>
Next, the configuration of data stored in the storage unit in each device of the mobile terminal exchange system 1 will be described. FIG. 4 is a diagram illustrating a configuration of the terminal specific data 24A stored in the storage unit 24 of the wireless portable terminal 2. The terminal unique data 24A is data unique to the wireless portable terminal 2, and includes a terminal unique number 24A1 and an extension number 24A2. The terminal unique number 24A1 is a number unique to the wireless portable terminal 2, and is, for example, a manufacturing number. The terminal unique number 24A1 is not a number set by the portable terminal switching system 1 such as an extension number or a dial-in number, but a universal number that the wireless portable terminal 2 itself has. The extension number 24A2 is a number for the wireless portable terminal 2 to communicate with the private branch exchange 4 via the private wireless network 5, and is a number unique to the wireless portable terminal 2 in the private wireless network 5. Therefore, if the local wireless network 5 to which the wireless portable terminal 2 is applied is changed, the extension number 24A2 is also changed and reset. It is also conceivable that the wireless portable terminal 2 uses the extension number 24A2 as the terminal unique number 24A1.

  FIG. 5 is a diagram showing a configuration of card specific data 32 </ b> A stored in the storage unit 32 of the mobile phone communication card 3. The card specific data 32A is data specific to the mobile phone communication card 3, and includes the mobile phone number 32A1. The mobile phone number 32A1 is a number for the wireless mobile terminal 2 to communicate with the private branch exchange 4 via the mobile phone network 7 and the public telephone network 6, and is a number unique to the mobile phone communication card 3 in the mobile phone network 7. is there.

  FIG. 6 is a diagram showing the configuration of the terminal management data 44A stored in the storage unit 44 of the private branch exchange 4. The terminal management data 44A is data for managing the wireless mobile terminal 2 and the mobile phone communication card 3 connected to the wireless mobile terminal 2, and each terminal has a terminal unique number 44A1, a terminal extension state 44A2, and an extension number 44A3. , A record including a dial-in number 44A4 and a mobile phone number 44A5. Similarly to the terminal unique number 24A1 of the wireless portable terminal 2, the terminal unique number 44A1 is a number unique to the wireless portable terminal 2 and is key data of a record for each terminal. The terminal extension state 44A2 indicates whether or not the wireless portable terminal 2 is within a communicable range on the local wireless network 5 by “within range” or “out of range”. The terminal extension state 44A2 is periodically checked. In the check, it is determined whether the wireless portable terminal 2 is called by the extension number and responds or not, and “range” or “out of range” is determined according to the result. Is set to the terminal extension state 44A2.

  The extension number 44A3 is a number unique to the wireless portable terminal 2 in the local wireless network 5, like the extension number 24A2 of the wireless portable terminal 2. The dial-in number 44A4 is a number unique to the wireless portable terminal 2 in the public telephone network 6. The dial-in number 44A4 is a telephone subscriber number or a combination of a representative telephone number and an extension number. The mobile phone number 44A5 is a number unique to the mobile phone communication card 3 in the mobile phone network 7, like the mobile phone number 32A1 of the mobile phone communication card 3. The private branch exchange 4 may use the extension number 44A3 as the terminal unique number 44A1.

≪System processing≫
Then, the process of the portable terminal exchange system 1 is demonstrated. FIG. 7 is a flowchart showing processing for registering the mobile phone number of the mobile phone communication card 3 in the private branch exchange 4. In the wireless portable terminal 2, first, when the cellular phone communication card 3 is connected to the card connection unit 25 (step S701), the processing unit 26 retrieves the cellular phone number stored in the storage unit 32 from the cellular phone communication card 3. 32A1 is acquired (step S702). In this case, the processing unit 26 detects that the mobile phone communication card 3 is connected by a signal from the card connection unit 25, and requests the processing unit 34 of the mobile phone communication card 3 to transmit the mobile phone number 32A1. Alternatively, the processing unit 34 may detect that it is connected to the wireless portable terminal 2 by a signal from the terminal connection unit 33 and transmit the mobile phone number 32A1 to the processing unit 26 itself. Next, the processing unit 26 transmits the terminal unique number 24A1 stored in the storage unit 24 and the mobile phone number acquired from the mobile phone communication card 3 to the private branch exchange 4 (step S703). In this case, the terminal unique number and the mobile phone number are transmitted via the communication unit 21 of the wireless portable terminal 2 and the private wireless network 5 based on the preset extension number of the private branch exchange 4. In place of the processing in step S702 and step S703, the processing unit 34 of the mobile phone communication card 3 sends the terminal unique number and mobile phone number via the communication unit 31, the mobile phone network 7 and the public telephone network 6. Transmission to the exchange 4 is also conceivable. In this case, the public telephone number of the private branch exchange 4 is set in advance.

  In the private branch exchange 4, the extension communication unit 41 receives the terminal unique number and the mobile phone number (step S <b> 704) and passes them to the processing unit 43. In the processing unit 43, the mobile phone number registration unit 432 receives the terminal unique number and the mobile phone number via the overall control unit 431, and searches the terminal management data 44A record stored in the storage unit 44 by the terminal unique number. (Step S705). In this case, it is checked whether or not the terminal unique number 44A1 of each record matches the terminal unique number received from the wireless portable terminal 2. Then, the mobile phone number registration unit 432 sets the mobile phone number received from the wireless mobile terminal 2 in the mobile phone number 44A5 of the record with the matching terminal unique number (step S706). As a result, the mobile phone number of the mobile phone communication card 3 connected to the wireless mobile terminal 2 is registered in the private branch exchange 4.

  FIG. 8 is a flowchart showing a process of deleting the mobile phone number of the mobile phone communication card 3 from the private branch exchange 4. First, in the wireless portable terminal 2, when the cellular phone communication card 3 is removed from the card connection unit 25 (step S801), the processing unit 26 has removed the cellular phone communication card 3 by a signal from the card connection unit 25. And the terminal unique number 24A1 stored in the storage unit 24 is transmitted to the private branch exchange 4 (step S802). In this case, the terminal unique number is transmitted via the communication unit 21 of the wireless portable terminal 2 and the private wireless network 5.

  In the private branch exchange 4, the extension communication unit 41 receives the terminal unique number (step S803) and passes it to the processing unit 43. In the processing unit 43, the mobile phone number deletion unit 433 receives the terminal unique number via the overall control unit 431, and searches the terminal management data 44A record stored in the storage unit 44 by the terminal unique number (step S804). ). In this case, it is checked whether or not the terminal unique number 44A1 of each record matches the terminal unique number received from the wireless portable terminal 2. Then, the mobile phone number deleting unit 433 clears (invalidates) the mobile phone number 44A5 of the record with the matching terminal unique number (step S805). As a result, the mobile phone number of the mobile phone communication card 3 removed from the wireless mobile terminal 2 is deleted from the private branch exchange 4.

  If the mobile phone communication card 3 is removed when the wireless mobile terminal 2 is outside the private wireless network 5, the terminal unique number does not reach the private branch exchange 4, and the mobile phone number is not deleted. However, when the mobile phone communication card 3 is connected to the wireless mobile terminal 2 at the next opportunity, the terminal unique number and the mobile phone number reach the private branch exchange 4 and the mobile phone number is overwritten. . For the same reason, the process of deleting the mobile phone number from the private branch exchange 4 may be omitted.

  FIG. 9 is a flowchart showing a process in which the private branch exchange 4 transfers an incoming call according to the position of the wireless portable terminal 2. In the private branch exchange 4, first, the extension communication unit 41 or the public communication unit 42 receives an incoming call from the private wireless network 5 or the public telephone network 6 (step S901). Next, the incoming call transfer unit 434 receives the incoming call number via the overall control unit 431, and searches the record of the terminal management data 44A stored in the storage unit 44 by the incoming call number (step S902). Here, the incoming call number is an extension number in the case of an incoming call from the local wireless network 5, and a dial-in number in the case of an incoming call from the public telephone network 6. Therefore, it is checked whether the received extension number or dial-in number matches the extension number 44A3 or dial-in number 44A4 of each record. Then, the terminal extension state 44A2 of the record with the matched incoming number is specified (step S903). The terminal extension state 44A2 is periodically checked and set in advance. Note that at the time of step S903, the latest terminal extension state of the wireless portable terminal 2 corresponding to the record may be checked and set to the terminal extension state 44A2.

  If the terminal extension state 44A2 is within range (YES in step S904), the incoming call transfer unit 434 transfers the incoming call to the wireless portable terminal 2 via the local wireless network 5 by the extension communication unit 41 (step S905). On the other hand, if the terminal extension state 44A2 is out of service area (NO in step S904), the incoming call transfer unit 434 transfers the incoming call to the wireless mobile terminal 2 via the public telephone network 6 and the mobile phone network 7 by the public communication unit 42. (Step S906). Thus, the incoming call can be transferred by an appropriate method according to the current position of the wireless portable terminal 2.

  Although the embodiment of the present invention has been described above, in order to make the wireless portable terminal 2, the cellular phone communication card 3 and the private branch exchange 4 shown in FIG. 1 function, a program executed by each processing unit can be read by a computer. It is assumed that the portable terminal exchange system 1 according to the embodiment of the present invention is realized by recording on a recording medium, causing the computer to read and execute the recorded program. Note that the program may be provided to the computer via a network such as the Internet, or a semiconductor chip or the like in which the program is written may be incorporated in the computer.

  According to the embodiment of the present invention described above, the wireless portable terminal 2 having the local wireless communication function and the portable telephone communication card 3 having the portable telephone communication function are separated and connected and used as necessary. Therefore, users are free to embed software and select services without being restricted by the mobile phone service provided by the operator. Accordingly, the cellular phone communication card 3 of a favorite company can be selected.

  In addition, even if one dedicated mobile phone is not assigned to one person, a common mobile phone communication card 3 is prepared, and the mobile phone number is assigned when the mobile phone communication card 3 is connected to the wireless mobile terminal 2. Since it is automatically registered in the exchange 4, it can be used as if it were a personal mobile phone. By sharing the mobile phone communication card 3, it is possible to reduce the purchase cost and basic charge of the mobile phone. Furthermore, when the mobile phone communication card 3 is removed from the wireless mobile terminal 2, the mobile phone number is automatically deleted from the private branch exchange 4, so that the mobile phone communication card 3 after use is not conscious of the subsequent cleanup. be able to.

<< Other embodiments >>
Although the best mode for carrying out the present invention has been described above, the above embodiment is intended to facilitate understanding of the present invention and is not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and equivalents thereof are also included in the present invention. For example, the following embodiments can be considered.

(1) In the above embodiment, as shown in FIGS. 7 and 8, the private branch exchange 4 registers or invalidates the mobile phone number using the terminal unique number received from the wireless mobile terminal 2 as a key. However, the extension number may be received from the wireless portable terminal 2 instead of the terminal unique number, and the cellular phone number may be registered or invalidated using the received extension number as a key. According to this, since the terminal unique number becomes unnecessary, the data handled by the portable terminal exchange system 1 can be reduced.

(2) In the above embodiment, it has been described that the registration / deletion of the mobile phone number to the private branch exchange 4 is automatically performed by connecting / disconnecting the mobile phone communication card 3 to / from the wireless mobile terminal 2. It is not always necessary to connect / remove the mobile phone communication card 3, but the user may be able to instruct the registration / cancellation of the mobile phone number by operating a button that is the operation unit 23 of the wireless mobile terminal 2. According to this, even if the mobile phone communication card 3 is connected to the wireless mobile terminal 2, for example, if the mobile phone communication card 3 is not desired for answering a call such as an interview with a customer, You can unregister phone numbers. When the use is completed, the mobile phone number can be registered again by instructing the registration with a button operation.

(3) In the above embodiment, it is described that the incoming call is transferred to the mobile phone number 44A5 when the terminal extension state 44A2 stored in the storage unit 44 of the private branch exchange 4 is out of service area. You may enable it to change the setting content for every terminal of the memory | storage part 44 so that it may transfer. For example, if it is during a meal, it is conceivable to transfer to voice mail so that the contents can be confirmed later. Also, if you are on the train, you can transfer it to a representative telephone in the office so that other persons in charge can handle it.

It is a figure which shows the structure of the portable terminal exchange system. FIG. 2 is a diagram showing configurations of a wireless mobile terminal 2 and a mobile phone communication card 3. 2 is a diagram showing a configuration of a private branch exchange 4. FIG. It is a figure which shows the structure of terminal specific data 24A. It is a figure which shows the structure of card specific data 32A. It is a figure which shows the structure of terminal management data 44A. 4 is a flowchart showing a process for registering the mobile phone number of the mobile phone communication card 3 in the private branch exchange 4; 4 is a flowchart showing processing for deleting a mobile phone number of the mobile phone communication card 3 from the private branch exchange 4; 5 is a flowchart showing processing for transferring an incoming call in accordance with the position of the wireless portable terminal 2;

Explanation of symbols

1 Mobile terminal exchange system 2 Wireless mobile terminal (terminal)
24 storage unit (first storage unit)
24A1 Terminal unique number 24A2 Extension number 3 Mobile phone communication card (communication card)
32 storage unit (second storage unit)
32A1 Mobile phone number 4 Private branch exchange 44 Storage unit (third storage unit)
44A1 Terminal specific number 44A3 Extension number 44A4 Dial-in number 5 Local wireless network 6 Public telephone network 7 Mobile phone network

Claims (10)

A terminal unique number is stored in the first storage unit, and a terminal capable of local wireless communication;
A communication card that stores a mobile phone number in a second storage unit and enables mobile phone communication by the terminal by being connected to the terminal;
A private branch exchange capable of private wireless communication with the terminal, and further capable of mobile phone communication with the terminal connected to the communication card;
Comprising
The private branch exchange is
A third storage unit that stores a terminal unique number, an extension number, and a dial-in number for each terminal;
When receiving the terminal unique number and the mobile phone number from the terminal connected to the communication card, the mobile phone stores the mobile phone number in the third storage unit so as to correspond to the terminal unique number A number registration unit;
If the private branch exchange receives an incoming call, the extension number or dial-in number included in the incoming call refers to the third storage unit, specifies the extension number and mobile phone number of the terminal of the call forwarding destination, If the terminal is within the range where local wireless communication is possible, the incoming call is forwarded to the terminal by local wireless communication using the specified extension number, and if the terminal is outside the range where private wireless communication is possible An incoming call transfer unit for transferring an incoming call to the terminal by mobile phone communication using the mobile phone number,
A mobile terminal exchange system comprising: The private branch exchange is
A mobile phone number deleting unit for invalidating a mobile phone number corresponding to the terminal specific number stored in the third storage unit when a terminal specific number is received from the terminal from which the communication card has been removed; The mobile terminal switching system according to claim 1, further comprising: A terminal that stores an extension number in the first storage unit and is capable of on-premises wireless communication;
A communication card that stores a mobile phone number in a second storage unit and enables mobile phone communication by the terminal by being connected to the terminal;
A private branch exchange capable of private wireless communication with the terminal, and further capable of mobile phone communication with the terminal connected to the communication card;
Comprising
The private branch exchange is
A third storage unit that stores an extension number and a dial-in number for each terminal;
Mobile phone number registration for storing the mobile phone number so as to correspond to the extension number in the third storage unit when the extension number and the mobile phone number are received from the terminal connected to the communication card And
If the private branch exchange receives an incoming call, the extension number or dial-in number included in the incoming call refers to the third storage unit, specifies the extension number and mobile phone number of the terminal of the call forwarding destination, If the terminal is within the range where local wireless communication is possible, the incoming call is forwarded to the terminal by local wireless communication using the specified extension number, and if the terminal is outside the range where private wireless communication is possible An incoming call transfer unit for transferring an incoming call to the terminal by mobile phone communication using the mobile phone number,
A mobile terminal exchange system comprising: The private branch exchange is
A mobile phone number deleting unit that invalidates the mobile phone number corresponding to the extension number stored in the third storage unit when an extension number is received from the terminal from which the communication card has been removed; The mobile terminal switching system according to claim 3. A terminal unique number is stored in the first storage unit, and a terminal capable of local wireless communication;
A communication card that stores a mobile phone number in a second storage unit and enables mobile phone communication by the terminal by being connected to the terminal;
A private branch exchange capable of private wireless communication with the terminal, and further capable of mobile phone communication with the terminal connected to the communication card;
A mobile terminal replacement method by a system configured to include:
The private branch exchange stores a terminal unique number, an extension number, and a dial-in number for each terminal in a third storage unit;
When the private branch exchange receives the terminal unique number and the mobile phone number from the terminal to which the communication card is connected, the mobile phone number corresponds to the terminal unique number in the third storage unit A step of memorizing
When the private branch exchange receives an incoming call to the private branch exchange, the extension number or dial-in number included in the incoming call refers to the third storage unit, and the extension number of the terminal of the incoming call transfer destination and the mobile phone If the number is specified and the terminal is within the range where local wireless communication is possible, the incoming call is transferred to the terminal by private wireless communication using the specified extension number, and the terminal is outside the range where private wireless communication is possible If there is, the step of transferring the incoming call to the terminal by mobile phone communication using the specified mobile phone number;
A mobile terminal replacement method comprising: When the private branch exchange receives a terminal unique number from the terminal from which the communication card has been removed, a step of invalidating a mobile phone number corresponding to the terminal unique number stored in the third storage unit The mobile terminal replacement method according to claim 5, further comprising: A terminal that stores an extension number in the first storage unit and is capable of on-premises wireless communication;
A communication card that stores a mobile phone number in a second storage unit and enables mobile phone communication by the terminal by being connected to the terminal;
A private branch exchange capable of private wireless communication with the terminal, and further capable of mobile phone communication with the terminal connected to the communication card;
A mobile terminal replacement method by a system configured to include:
The private branch exchange stores an extension number and a dial-in number for each terminal in a third storage unit;
When the private branch exchange receives the extension number and the mobile phone number from the terminal connected to the communication card, the mobile phone number is stored in the third storage unit so as to correspond to the extension number Step to
When the private branch exchange receives an incoming call to the private branch exchange, the extension number or dial-in number included in the incoming call refers to the third storage unit, and the extension number of the terminal of the incoming call transfer destination and the mobile phone If the number is specified and the terminal is within the range where local wireless communication is possible, the incoming call is transferred to the terminal by private wireless communication using the specified extension number, and the terminal is outside the range where private wireless communication is possible If there is, the step of transferring the incoming call to the terminal by mobile phone communication using the specified mobile phone number;
A mobile terminal replacement method comprising: When the private branch exchange receives an extension number from the terminal from which the communication card has been removed, and further invalidates the mobile phone number corresponding to the extension number stored in the third storage unit. The mobile terminal replacement method according to claim 7, further comprising: A terminal unique number is stored in the first storage unit, and a terminal capable of local wireless communication;
A communication card that stores a mobile phone number in a second storage unit and enables mobile phone communication by the terminal by being connected to the terminal;
A private branch exchange capable of private wireless communication with the terminal, and further capable of mobile phone communication with the terminal connected to the communication card;
A mobile phone number registration method by a system comprising:
The private branch exchange stores a terminal unique number for each terminal in a third storage unit;
The terminal, when the communication card is connected, transmitting the terminal unique number stored in the first storage unit and the mobile phone number stored in the second storage unit to the private branch exchange; ,
When the private branch exchange receives the terminal unique number and the mobile phone number from the terminal, storing the mobile phone number in the third storage unit so as to correspond to the terminal unique number;
A mobile phone number registration method comprising: A terminal that stores an extension number in the first storage unit and is capable of on-premises wireless communication;
A communication card that stores a mobile phone number in a second storage unit and enables mobile phone communication by the terminal by being connected to the terminal;
A private branch exchange capable of private wireless communication with the terminal, and further capable of mobile phone communication with the terminal connected to the communication card;
A mobile phone number registration method by a system comprising:
The private branch exchange storing an extension number in a third storage unit for each terminal;
The terminal, when the communication card is connected, transmitting the extension number stored in the first storage unit and the mobile phone number stored in the second storage unit to the private branch exchange;
When the private branch exchange receives the extension number and the mobile phone number from the terminal, storing the mobile phone number so as to correspond to the extension number in the third storage unit;
A mobile phone number registration method comprising:

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