JP5486484B2 - Caller information display system on mobile terminal and program for displaying caller information - Google Patents

Description

  The present invention relates to a caller information display system and a caller information display program on a mobile terminal, and more particularly, calls received from outside via a PBX (Private Branch eXchange) installed on a home line on a public line. The present invention relates to a technique for realizing display of caller information on the mobile terminal when transferring to the mobile terminal.

  2. Description of the Related Art Conventionally, a technique for displaying a caller's telephone number when a call is received by a fixed telephone set under a publicly subscribed telephone or a private branch exchange, a so-called caller number display technique is widely known. Furthermore, the electronic phone book registered in the incoming phone is checked, and if the caller ID is registered in the electronic phone book, the caller ID and the name of the corresponding caller are displayed on the fixed phone. The technology is also well known.

  On the other hand, a technique for transferring a telephone call received from a fixed telephone to a portable terminal on a public line via a private branch exchange is widely provided. As described above, when a call received by a fixed telephone is transferred to a portable terminal, it is required to display the caller's telephone number and name on the transferred portable terminal.

  However, in general, as shown in FIG. 4, when a telephone incoming from the outside is transferred to a portable terminal on a public line via a private branch exchange, the telephone number displayed on the portable terminal of the transfer destination is This is the contract number or additional number of the line to which (Private Branch Exchange) is subscribed. This is because, according to the rules of the Ministry of Internal Affairs and Communications, it is arranged to transfer the telephone using the telephone number of the transfer source so that the number fraud is not possible. Technically, the telephone number of the caller can be ascertained on the private branch exchange that has received the call, so a mechanism for setting the caller number and transferring the call can be implemented. However, in reality, restrictions are imposed on the upper level communication carrier (carrier), which causes an error.

  On the other hand, a technique has been proposed in which caller information is displayed on a mobile terminal that has received a transfer (see, for example, Patent Document 1). The mobile phone communication system described in Patent Document 1 includes a database server and a communication company center server in addition to the exchange, and receives a call from a caller via a communication carrier server. Caller information is displayed on the display unit.

  Specifically, the database server includes the correspondence between the telephone number (destination number) of the mobile phone and the public telephone number, information for identifying the caller (caller identification information), and the telephone number of the caller's telephone. Manage the correspondence of. The exchange notifies the database server that a telephone call from the telephone number managed by the database server to the public telephone number has been received. Upon receiving this notification, the database server designates the caller identification information, the exchange transmission number, and the transmission destination number, and requests transmission of a command from the communication business center server. In accordance with the instruction transmitted from the communication business center server, the mobile phone registers the caller identification information and the exchange calling number as caller information in its own address book, and receives a call transferred from the exchange. Is displayed on the display unit.

JP 2009-147619 A

  However, the technique described in Patent Document 1 requires a database server in which information for managing the correspondence between the callee number and the public telephone number and the correspondence between the caller identification information and the caller number is registered in advance. It is. Further, the technique described in Patent Document 1 is configured to send incoming information to a mobile phone in a short message in cooperation with a communication carrier (carrier), and it is necessary to provide a communication company center server.

  For this reason, it is a method with a fairly high barrier in reality because it places additional equipment in the telecommunications carrier and costs for capital investment such as database servers and carrier center servers. .

  The present invention has been made to solve such problems, and does not require cooperation with a telecommunications carrier, and does not require a large capital investment, and is a portable terminal that receives a call transfer via a private branch exchange. The purpose is to be able to display caller information.

  In order to solve the above-described problem, in the present invention, when a telephone originated from outside is received at a private branch exchange and the telephone is to be transferred to a mobile terminal on a public line, the public operation is performed as a preceding operation of the public process. The caller number is notified to the mobile terminal via a network other than the line, and the caller number is associated with the home fixed number of the private branch exchange and stored in the storage unit of the mobile terminal. After that, the telephone is transferred to the portable terminal on the public line using the private fixed number of the private branch exchange, and the transferred portable terminal collates the storage unit with the fixed fixed number in the house, and is associated with the fixed fixed number. The caller ID is acquired and displayed on the display unit.

  According to the present invention configured as described above, the Ministry of Internal Affairs and Communications rules that a telephone is transferred to a mobile terminal on a public line by using the private fixed number of the private branch exchange only by communication between the private branch exchange and the mobile terminal. The caller information can be displayed on the portable terminal that has received the call transfer via the private branch exchange. For this reason, it is not necessary to cooperate with a telecommunications carrier, and the caller at the mobile terminal that received the transfer of the telephone from the outside through the private branch exchange without making a large capital investment other than the program installed in the private branch exchange and the mobile terminal. Information can be displayed.

It is a block diagram which shows the example of schematic structure of the sender | caller information display system by this embodiment. It is a block diagram which shows the function structural example of the private branch exchange and the portable terminal which are the components of the sender | caller information display system by this embodiment. It is a flowchart which shows the operation example of the sender | caller information display system by this embodiment. It is a figure for demonstrating the general operation | movement at the time of transferring the telephone call which arrives from the outside to the portable terminal on a public line via a private branch exchange.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a schematic configuration example of a caller information display system 100 according to the present embodiment. As shown in FIG. 1, the caller information display system 100 of this embodiment receives a phone call from a caller telephone 200 and transfers it to a portable terminal 20 on a public line 300 (a private branch exchange ( PBX) 10 and a portable terminal 20 that receives the telephone transfer.

  The private branch exchange 10 is connected to the caller telephone 200 and the portable terminal 20 via the public line 300. The portable terminal 20 is connected to the private branch exchange 10 and the caller telephone 200 via the public line 300. The private branch exchange 10 and the portable terminal 20 are always connected by TCP (Transmission Control Protocol) via the Internet 400 (corresponding to “a network other than the public line” in the present invention). The mobile terminal 20 is a terminal having a telephone function, and is configured by, for example, a mobile phone, a smartphone, or a tablet terminal.

  The private branch exchange 10 and the portable terminal 20 are installed with application programs 10a and 20a for displaying caller information, and these application programs 10a and 20a cooperate to receive a call received from the caller telephone 200. When transferring to the mobile terminal 20 via the private branch exchange 10, the caller information is displayed on the transfer destination mobile terminal 20.

  FIG. 2 is a block diagram illustrating a functional configuration example of the private branch exchange 10 and the mobile terminal 20 which are components of the caller information display system 100 according to the present embodiment. The functional configuration shown in FIG. 2 includes, for example, a RAM or ROM storing the application programs 10a and 20a shown in FIG. 1, a microcomputer including a CPU or MPU, and a nonvolatile memory (none of which are shown). It is realized with.

  Accordingly, application programs 10a and 20a that cause the private branch exchange 10 and the portable terminal 20 to operate so as to perform the functions shown in FIG. 2 are recorded on a recording medium such as a CD-ROM, and are stored in the private branch exchange 10 and the portable terminal 20. By making it read, the caller information display system 100 of this embodiment is realizable. As a recording medium for recording the application programs 10a and 20a, a flexible disk, a hard disk, a magnetic tape, an optical disk, a magneto-optical disk, a DVD, a nonvolatile memory card, and the like can be used in addition to the CD-ROM. It can also be realized by downloading the application programs 10a and 20a to the private branch exchange 10 and the mobile terminal 20 via a network such as the Internet 400, respectively.

  As shown in FIG. 2, the private branch exchange 10 includes a caller number notification unit 11 and a telephone transfer unit 12 as functional configurations realized by the application program 10a. The private branch exchange 10 further includes a fixed number storage unit 13 in addition to these functional configurations.

  On the other hand, the portable terminal 20 includes a storage control unit 21, a response unit 22, a caller information acquisition unit 23, and a display control unit 24 as functional configurations realized by the application program 20a. In addition to these functional configurations, the portable terminal 20 includes a telephone directory storage unit 25, a local telephone directory storage unit 26 (corresponding to the storage unit of the present invention), a spare telephone directory storage unit 27, and a display unit 28 such as a liquid crystal display. Is further provided. Note that the functions of the caller information acquisition unit 23 and the display control unit 24 may be realized by partially using a telephone application program originally incorporated in the mobile terminal 20.

  First, the configuration of the private branch exchange 10 will be described. The fixed number storage unit 13 is a nonvolatile memory, and stores a home fixed number that is a unique telephone number set in the private branch exchange 10. The fixed number storage unit 13 also stores a spare fixed number different from the home fixed number. When a call is transferred by the telephone transfer unit 12, a home fixed number is normally used. However, when a connection cannot be established with the Internet 400, a spare fixed number is used for telephone transfer.

  When the caller number notifying unit 11 receives (receives) a call transmitted from the caller telephone 200 via the public line 300 by the telephone transfer unit 12 of the private branch exchange 10, the caller notification unit 11 notifies the incoming call notification. 12, a caller number which is the telephone number of the caller telephone 200 is acquired by a publicly known method of the private branch exchange 10. Then, the caller number is notified to the portable terminal 20 using the Internet 400 which is a network other than the public line 300.

  Further, the caller number notification unit 11 receives a response signal returned from the portable terminal 20 when the notified caller number is normally sent to the portable terminal 20 and stored as caller information. When the caller number notification unit 11 receives this response signal within a predetermined time, the caller number notification unit 11 notifies the telephone transfer unit 12 that the caller information is stored in the portable terminal 20. On the other hand, when the response signal is not received within a predetermined time, the caller number notification unit 11 notifies the telephone transfer unit 12 that the caller information is not stored in the mobile terminal 20.

  After the caller ID is notified by the caller ID notifier 11, the telephone transfer unit 12 uses a publicly known technique of the private branch exchange 10 to set a fixed home number (in the Internet 400) set in the fixed number storage unit 13. The telephone received from the caller telephone 200 is transferred to the portable terminal 20 through the public line 300 using a spare fixed number in case of an abnormal connection cannot be established.

  Specifically, when the call transfer unit 12 receives a response signal from the portable terminal 20 within a predetermined time after the caller number notification is made by the caller number notification unit 11, the telephone transfer unit 12 uses the home fixed number. Then, the telephone received from the caller telephone 200 is transferred to the portable terminal 20 through the public line 300. On the other hand, when the response signal is not received from the portable terminal 20 within a predetermined time, the telephone received from the caller telephone 200 is transferred to the portable terminal 20 through the public line 300 using the spare fixed number.

  Next, the configuration of the mobile terminal 20 will be described. The phone book storage unit 25 is a non-volatile memory, and stores an electronic phone book configured by associating one or more telephone numbers with one or more names. The electronic phone book is arbitrarily set by the user of the mobile terminal 20 by operating an operation unit (not shown), and is publicly known information that the mobile terminal 20 has a telephone function.

  When the caller number is notified from the private branch exchange 10 via the Internet 400 by the caller number notification unit 11 of the private branch exchange 10, the storage control unit 21 fixes the notified caller number to the private branch exchange 10. The local phone book storage unit 26 stores the number in association with the number. The private fixed number of the private branch exchange 10 is stored in advance in the local telephone directory storage unit 26. Alternatively, the caller number notification unit 11 may notify the mobile terminal 20 of the home fixed number together with the caller number.

  When storing the caller number notified from the private branch exchange 10 in the local phone book storage unit 26, the storage control unit 21 checks the phone book storage unit 25 with the caller number. If the name associated with the caller ID is registered as an electronic telephone book, the name is acquired. The storage control unit 21 stores the name acquired in this way as caller information together with the caller number in the local telephone directory storage unit 26 in association with the home fixed number. On the other hand, if the name associated with the caller number is not registered as an electronic phone book, the storage control unit 21 stores only the caller number in the local phone book storage unit 26 as caller information.

  The local phone book storage unit 26 is a non-volatile memory, and the home fixed number of the private branch exchange 10 and the caller number notified from the private branch exchange 10 (the name corresponding to this caller number is stored in the phone book storage unit 25). In the case of being registered as an electronic telephone book, the electronic telephone book configured by associating with the caller number and name is temporarily stored. The term “temporary” means, for example, the time until a new caller ID is notified from the private branch exchange 10 next time. That is, when a new caller number is notified, the stored contents of the local telephone directory storage unit 26 are updated with the caller information including the new caller number.

  The spare telephone directory storage unit 27 is a non-volatile memory, and a telephone call is made from a spare fixed number of the private branch exchange 10 and a facility where the private branch exchange 10 is installed (for example, a company to which a user using the mobile terminal 20 belongs). Is stored in a spare electronic telephone book configured in association with a predetermined character string (for example, “company call incoming”). The spare fixed number and the predetermined character string of the private branch exchange 10 are stored in advance in the spare telephone directory storage unit 27. The predetermined character string may be text information or image information.

  When the storage control unit 21 completes the process of storing the caller information in the local telephone directory storage unit 26 in association with the home fixed number, the response unit 22 sends the caller number notification unit of the private branch exchange 10 via the Internet 400. 11 returns a response signal. Receiving the response signal, the caller number notifying unit 11 notifies the telephone transfer unit 12 that the caller information is stored in the local telephone directory storage unit 26.

  If a constant connection via the Internet 400 is established, the mobile terminal 20 can normally receive the caller number from the private branch exchange 10 and the response unit 22 can return a response signal to the private branch exchange 10 within a predetermined time. . On the other hand, if the communication state due to the continuous connection of the Internet 400 deteriorates due to the influence of noise, communication environment, etc., the mobile terminal 20 cannot receive the caller number from the private branch exchange 10 normally, and the response unit 22 is within a predetermined time. No response signal is returned to the private branch exchange 10. In this case, the caller ID notification unit 11 notifies the telephone transfer unit 12 that the caller information has not been stored in the local phone book storage unit 26.

  The caller information acquisition unit 23 checks the local telephone directory storage unit 26 when a call is transferred by the telephone transfer unit 12 of the private branch exchange 10 using the home fixed number, and the outgoing call associated with the home fixed number is checked. Party information (information actually stored in the local telephone directory storage unit 26 among the sender number and name) is acquired. Further, the caller information acquisition unit 23 checks the backup phone book storage unit 27 when the call is transferred using the backup fixed number by the telephone transfer unit 12 of the private branch exchange 10, and is associated with the backup fixed number. Get the string "company call incoming".

  When the caller information acquisition unit 23 acquires the caller information from the local telephone directory storage unit 26, the caller information acquisition unit 23 notifies the display control unit 24 of the caller information. On the other hand, when the caller information obtaining unit 23 obtains a predetermined character string “company call incoming” from the spare telephone directory storage unit 27, the caller information obtaining unit 23 notifies the display control unit 24 of the character string.

  When the caller information is notified from the caller information acquisition unit 23, the display control unit 24 displays the caller information on the display unit 28. On the other hand, when a predetermined character string is notified from the caller information acquisition unit 23, the display control unit 24 causes the display unit 28 to display the character string.

  Next, the operation of the caller information display system 100 according to the present embodiment configured as described above will be described. FIG. 3 is a flowchart illustrating an operation example of the caller information display system 100 according to the present embodiment. Note that the flowchart shown in FIG. 3 starts when the private branch exchange 10 receives a telephone call transmitted from the caller telephone 200 via the public line 300.

  In FIG. 3, when the telephone call unit 12 of the private branch exchange 10 receives a telephone call from the caller's telephone 200 via the public line 300, the caller number notification unit 11 first makes a public notice of the private branch exchange 10. The caller number is acquired by the above method, and the caller number is notified to the portable terminal 20 via the Internet 400 (step S1).

  In the portable terminal 20, the storage control unit 21 that has received the notification of the caller number collates the telephone book storage unit 25, and if the name associated with the caller number is registered as an electronic telephone book, the name is stored. Obtain (step S2). Then, the storage control unit 21 associates the caller information (the caller number notified from the private branch exchange 10 or the name if the name is acquired from the telephone book storage unit 25) with the home fixed number in the local phone book. It memorize | stores in the memory | storage part 26 (step S3).

  When the storage controller 21 completes the process of storing the caller information in the local telephone directory storage unit 26, the response unit 22 returns a response signal to the private branch exchange 10 via the Internet 400 (step S4). When the communication state due to the constant connection of the Internet 400 deteriorates and the mobile terminal 20 cannot normally receive the caller ID from the private branch exchange 10, the processes in steps S2 and S3 are not performed. Therefore, the response unit 22 does not return a response signal to the private branch exchange 10 in step S4 within a predetermined time from the notification of the caller number by the caller number notification unit 11.

  In the private branch exchange 10, the caller ID notification unit 11 determines whether or not a response signal is returned from the portable terminal 20 within a predetermined time after the caller ID is notified in step S1 (step S5). . When it is determined that a response signal has been received from the mobile terminal 20 within a predetermined time, the caller number notification unit 11 notifies the telephone transfer unit 12 that the caller information is stored in the local phone book storage unit 26. To do. Receiving this notification, the telephone transfer unit 12 uses the home fixed number stored in the fixed number storage unit 13 to transfer the telephone received from the caller telephone 200 to the portable terminal 20 through the public line 300 (step) S6).

  On the other hand, when it is determined that the response signal has not been received from the portable terminal 20 within a predetermined time, the caller number notifying unit 11 indicates that the caller information is not stored in the local phone book storage unit 26. Notify Receiving this notification, the telephone transfer unit 12 uses the backup fixed number stored in the fixed number storage unit 13 to transfer the telephone received from the caller telephone 200 to the portable terminal 20 through the public line 300 (step). S7).

  The caller information acquisition unit 23 of the portable terminal 20 receives the telephone transfer from the private branch exchange 10 and determines whether or not the fixed telephone number used for the transfer is a home fixed number (step S8). Specifically, the caller information acquisition unit 23 acquires a fixed telephone number used for transfer by a method similar to a known method of the private branch exchange 10 and determines whether or not it is a home fixed number. In order to make this determination, the caller information acquisition unit 23 knows at least the home fixed number in advance.

  Here, when it is determined that the fixed telephone number used for the telephone transfer is a home fixed number, the caller information obtaining unit 23 checks the local telephone directory storage unit 26 and calls the caller associated with the home fixed number. Information is acquired (step S9). Then, the acquired caller information is notified to the display control unit 24.

  On the other hand, when it is determined that the fixed telephone number used for the telephone transfer is not a home fixed number, that is, a backup fixed number, the caller information acquisition unit 23 checks the backup phone book storage unit 27 and reserves the fixed number. A predetermined character string associated with the number is acquired (step S10). Then, the acquired character string is notified to the display control unit 24.

  Finally, the display control unit 24 causes the display unit 28 to display the information (caller information or a predetermined character string) acquired by the caller information acquisition unit 23 in step S9 or step S10 (step S11).

  As described above in detail, in the present embodiment, when the private branch exchange 10 receives a call transmitted from the caller telephone 200, the Internet connection is performed before the call is transferred to the mobile terminal 20 on the public line 300. The caller number is notified to the portable terminal 20 using the permanent connection at 400, and the caller number is stored in the local telephone directory storage unit 26 of the portable terminal 20 in association with the home fixed number of the private branch exchange 10. deep. Thereafter, the telephone is transferred to the mobile terminal 20 on the public line 300 by using the home fixed number of the private branch exchange 10, and the mobile terminal 20 that has received the transfer checks the local telephone directory storage unit 26 by using the home fixed number, The caller number associated with the home fixed number is acquired and displayed on the display unit 28.

  According to the present embodiment configured as described above, only the communication between the private branch exchange 10 and the portable terminal 20 is used to transfer the telephone to the portable terminal 20 on the public line 300 using the home fixed number of the private branch exchange 10. The caller information can be displayed on the portable terminal 20 that has received the telephone transfer via the private branch exchange 10 while observing the rules of the Ministry of Internal Affairs and Communications. For this reason, cooperation with a telecommunications carrier is not necessary, and the private branch exchange 10 receives a call from the telephone 200 of the transmission source without making a large capital investment other than the application programs 10a and 20a installed in the private branch exchange 10 and the portable terminal 20. The caller information can be displayed on the mobile terminal 20 that has received the call transfer.

  Moreover, in this embodiment, when the caller number is notified from the private branch exchange 10 to the portable terminal 20, the telephone directory storage unit 25 is checked by the caller number, and if there is a name associated with the caller number, The name is acquired and stored in the local telephone directory storage unit 26 together with the caller number. After that, when a telephone call is transferred from the private branch exchange 10 to the portable terminal 20 using the home fixed number, the caller number and name are acquired from the local telephone directory storage unit 26 and displayed on the display unit 28. It is made to display.

  According to the present embodiment configured as described above, the mobile terminal that has received the transfer of the incoming call from the originating telephone 200 by the private branch exchange 10 using the electronic telephone directory that the mobile terminal 20 generally has In 20, the name of the caller can be displayed in addition to the caller number.

  Further, in the present embodiment, a spare electronic phone book configured by associating a spare fixed number different from the home fixed number and a predetermined character string is stored in the spare phone book storage unit 27 of the mobile terminal 20. When the connection state of the Internet 400 is bad and the caller number cannot be notified to the portable terminal 20, the telephone is transferred from the private branch exchange 10 to the portable terminal 20 using the spare fixed number, and the spare telephone directory is stored by the spare fixed number. A predetermined character string “company call incoming” acquired by collating the storage unit 27 is displayed on the display unit 28.

  When the call state is not notified to the mobile terminal 20 due to the poor connection state of the Internet 400, if the telephone is transferred using the home fixed number instead of the spare fixed number, the private branch exchange 10 notifies the mobile terminal 20 of the previous incoming call. The old caller number and name stored in this way are acquired from the local telephone directory storage unit 26 and displayed. On the other hand, when the caller number cannot be notified from the private branch exchange 10 to the mobile terminal 20 at the time of the current incoming call as in the above embodiment, the wrong caller is transferred by transferring the telephone using the spare fixed number. Information can be prevented from being displayed.

  Further, according to the present embodiment configured as described above, even if the connection state of the Internet 400 is bad and the caller ID cannot be notified and stored in advance in the mobile terminal 20, it is possible to store the private branch exchange. A predetermined character string indicating that a call has been transferred from a facility such as a company where 10 is installed is displayed. For this reason, even if it is not known who made the call, it can be understood that it is at least the transfer of the call made to the company.

  In addition, after the caller information is displayed on the mobile terminal 20 that has received the call transfer, the incoming call operation is completed without pressing the call button of the mobile terminal 20, or after the call is made by pressing the call button. If the caller information is deleted from the local telephone directory storage unit 26 and the stored content is cleared when the telephone is disconnected, the telephone call may be transferred using the home fixed number instead of the spare fixed number. .

  In this case, if the connection state of the Internet 400 is poor at the next incoming call and the caller number is not notified from the private branch exchange 10 to the portable terminal 20, the caller information is not stored in the local telephone directory storage unit 26. For this reason, caller information cannot be acquired from the local telephone directory storage unit 26 based on the home fixed number used for the telephone transfer, and nothing is displayed on the display unit 28. Even in this case, it is possible to prevent wrong caller information not related to the current incoming call from being displayed. Further, since no caller information is displayed, it can be estimated that the call is transferred to a company.

  In the above embodiment, when the name corresponding to the caller number is acquired from the phone book storage unit 25, the name is stored in the local phone book storage unit 26 together with the caller number. Instead of the number, only the name may be stored in the local telephone directory storage unit 26. Conversely, the telephone directory storage unit 25 may not be used, and only the caller number may be stored in the local telephone directory storage unit 26.

  Moreover, although the said embodiment demonstrated the example which always connects between the private branch exchange 10 and the portable terminal 20 by the internet 400, this invention is not limited to this. For example, the private branch exchange 10 and the portable terminal 20 may be connected by TCP of the Internet 400 when the private branch exchange 10 receives a telephone call transmitted from the caller telephone 200.

  In the above embodiment, when a call is transferred by the telephone transfer unit 12 of the private branch exchange 10, it is determined whether or not the fixed telephone number of the private branch exchange 10 used for the transfer is a home fixed number. The example in which either the local telephone directory storage unit 26 or the spare telephone directory storage unit 27 is collated according to the determination result has been described, but the present invention is not limited to this. For example, it is not determined whether or not the fixed telephone number used for the transfer is a home fixed number, but by comparing both the local telephone directory storage unit 26 and the spare telephone directory storage unit 27 with the acquired fixed telephone number. A name or a predetermined character string associated with the fixed telephone number (in-house fixed number or backup fixed number) may be acquired.

  In the above embodiment, when the connection state of the Internet 400 is bad and the caller number cannot be notified from the private branch exchange 10 to the portable terminal 20, the telephone is transferred using the spare fixed number, and the spare fixed number is handled. Although the example which displays a predetermined character string on the display part 28 was demonstrated, this invention is not limited to this. For example, when the user of the mobile terminal 20 presses the call button and answers the call while a predetermined character string is displayed, the private branch exchange 10 side may automatically read out the caller ID.

  In addition, each of the above-described embodiments is merely an example of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed in a limited manner. In other words, the present invention can be implemented in various forms without departing from the spirit or main features thereof.

DESCRIPTION OF SYMBOLS 10 Private branch exchange 10a Caller information display application program of private branch exchange 11 Caller number notification part 12 Telephone transfer part 13 Fixed number storage part 20 Portable terminal 20a Application program for caller information display of portable terminal 21 Storage control part 22 Response part 23 Caller information acquisition unit 24 Display control unit 25 Phonebook storage unit 26 Local phonebook storage unit 27 Spare phonebook storage unit 300 Public line 400 Internet

Claims (5)

Making a call to a portable terminal comprising a private branch exchange having a function of receiving a call sent from a caller telephone and transferring it to a portable terminal on a public line, and the portable terminal receiving the transfer of the telephone Person information display system,
The above private branch exchange
When a call sent from the caller telephone is received, a caller ID that is the telephone number of the caller telephone is obtained, and the caller is sent to the mobile terminal via a network other than the public line. A caller ID notifying unit for notifying a number;
After notification of the caller ID by the caller ID notifying unit, a call received from the caller's telephone is transmitted via the public line using the home fixed number which is a telephone number set in the private branch exchange. A phone transfer unit for transferring to the terminal,
The mobile device
A storage control unit for storing the notified caller number in the storage unit in association with the home fixed number when the caller number is notified from the private branch exchange by the caller number notification unit;
Caller information for collating the storage unit and acquiring the caller number associated with the home fixed number when a call is transferred from the private branch exchange using the home fixed number by the telephone transfer unit An acquisition unit;
A caller information display system for a portable terminal, comprising: a display control unit that displays the caller number acquired by the caller information acquisition unit on a display unit as caller information. The mobile terminal further includes a telephone directory storage unit that stores an electronic telephone directory configured by associating one or more telephone numbers with one or more names,
The storage control unit checks the telephone directory storage unit when the caller number notification unit notifies the caller number from the private branch exchange, and if there is a name associated with the caller number, Acquire the name, and instead of or in addition to the notified caller number, the acquired name is stored in the storage unit in association with the home fixed number,
The caller information acquisition unit checks the storage unit when the call is transferred from the private branch exchange using the home fixed number by the telephone transfer unit, and the caller information associated with the home fixed number is checked. Obtain the information actually stored in the storage unit among the person number and the name,
The caller information display system for a portable terminal according to claim 1, wherein the display control unit displays information acquired by the caller information acquisition unit on the display unit as the caller information. The portable terminal responds to the private branch exchange via a network other than the public line when processing for storing the caller number in the storage unit in association with the home fixed number is completed by the storage control unit. A response unit for returning a signal;
When the telephone transfer unit of the private branch exchange receives the response signal from the portable terminal within a predetermined time, the telephone fixed number is used to receive the telephone received from the source telephone through the public line. The caller information display system for a mobile terminal according to claim 1 or 2, wherein the caller information display system transfers to the mobile terminal. The portable terminal further includes a spare telephone directory storage unit for storing a spare electronic telephone directory configured by associating a predetermined fixed character string with a spare fixed number different from the home fixed number;
When the telephone transfer unit of the private branch exchange does not receive the response signal within the predetermined time from the portable terminal, the telephone transfer unit receives the telephone received from the source telephone using the spare fixed number. Transfer to the mobile terminal via the line,
The caller information acquisition unit collates the spare telephone directory storage unit when the call is transferred from the private branch exchange using the spare fixed number by the telephone transfer unit, and is associated with the spare fixed number. Get the string
The said display control part displays the said character string on the said display part, when the said character string is acquired by the said sender | caller information acquisition part, The sender | caller to the portable terminal of Claim 3 characterized by the above-mentioned. Information display system. Operates in each of the private branch exchange having a function of receiving a call transmitted from a caller's telephone and transferring it to a mobile terminal on a public line, and the mobile terminal receiving the transfer of the telephone, and making a call to the mobile terminal A caller information display program for displaying caller information,
When the private branch exchange receives a telephone call from the caller telephone, the private branch exchange obtains a caller ID that is a telephone number of the caller telephone and transmits the caller ID via a network other than the public line. Caller number notification means for notifying the terminal of the caller number,
In the private branch exchange, after notification of the caller number by the caller number notifying means, the telephone received from the caller's telephone using the home fixed number which is a telephone number set in the private branch exchange is Telephone transfer means for transferring to the mobile terminal via a public line;
In the mobile terminal, when the caller number is notified from the private branch exchange by the caller number notification means, storage control for storing the notified caller number in the storage unit in association with the home fixed number means,
In the portable terminal, when a call is transferred from the private branch exchange using the home fixed number by the telephone transfer means, the storage unit is checked and the caller number associated with the home fixed number is determined. Caller information acquisition means for acquiring, and display control means for causing the display unit to display the caller number acquired by the caller information acquisition means as caller information in the portable terminal;
A computer-readable program for displaying caller information for causing the private branch exchange and the portable terminal to function.

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