JP2010022072A - Mobile communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile communication system to enable a user of a mobile communication terminal to call a calling party with a simple operation after such an event happened as, while communication is disabled in the mobile communication terminal, the calling party makes a telephone call to the mobile communication terminal. <P>SOLUTION: When a calling target mobile telephone 50 is in a communication-disabled state, a management server in connection to the relevant wireless base station acquires a calling party number from the caller telephone and stores the number together with a time and date when the calling is received. When the mobile telephone 50 restores the communication-enabled state afterward, the management server sends call-setup information 610 including the calling party number and the time and date, which have been stored, to the mobile telephone 50 through the base station. The mobile telephone 50, receiving the information, records the calling party number etc. in a memory region for a telephone call register, which is used for an ordinary telephone call reception as well, to respond to register display instructions and call instructions with use of a calling party number on display, issued by the user. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to mobile communication, and more particularly to a system for notifying mobile communication terminals such as mobile phones of information related to callers.

2. Description of the Related Art Conventionally, many mobile phones have an incoming call history management function for recording and displaying a caller number, an incoming time, and the like when a call is received. As a result, even if the user of the mobile phone cannot answer the call at the time of the incoming call, he / she knows that the incoming call has been received by referring to the displayed caller number etc., and calls the caller later. Can be applied.
However, when the mobile phone is in a power-off state or located outside the area where communication with the radio base station is possible, that is, outside the so-called service area, the mobile phone receives the above-described caller ID and the like. I can't.

  In order to solve this problem, an answering machine service has been conventionally provided (see Patent Document 1). In the answering machine service, when the mobile phone is in a communication impossible state such as power-off or out of service area, the service center records that there is a call to the mobile phone, a voice message from the caller, etc. If there is a reproduction request telephone call from the user to the service center, the voice message is reproduced and the caller number is conveyed by voice.

Japanese Patent Laid-Open No. 9-200844

However, according to the conventional answering machine service, the caller number and the like can be communicated by voice, and in order to make a call to the caller, the number conveyed by the voice is entered by pressing the numeric key one by one. This operation is cumbersome.
Therefore, the present invention has been made in view of such problems, and when a mobile communication terminal such as a portable information device (PDA: Personal Digital Assistant) having a telephone communication function or a mobile phone cannot communicate, the mobile communication terminal A mobile communication system for allowing a user of the portable communication terminal to make a call to the caller with a simple operation after the call is made from a caller. Objective.

  In order to solve the above problems, a mobile communication system according to the present invention is a mobile communication system including a base station system and a mobile communication terminal, and the base station system has a call from a telephone terminal. When the mobile communication terminal that is the call destination detects that the communication is impossible, the holding means for holding the caller number sent from the telephone terminal and the sent from the telephone terminal are held. A transmission means for transmitting a caller number to the mobile communication terminal when the mobile communication terminal is in a communicable state, the mobile communication terminal having a memory area for incoming call history and an incoming call First recording means for recording the caller number sent to the incoming call history memory area, and second recording for recording the caller ID sent from the base station system in the incoming call history memory area And a history display means for displaying a caller number recorded in the telephone call history memory area and a caller number recorded in the telephone call history memory area. Calling means for making a call using a designated caller number when a user operation is received. The base station system includes a management server that manages one or more base stations and mobile communication terminals.

  The mobile communication system according to the present invention has the above-described configuration, so that even when a call is received when communication is not possible, the same call incoming history memory area as when the caller ID is received when communication is possible Since the history display and outgoing calls are handled in the same way, the user can perform the same operation as when receiving a normal incoming call without performing a special operation when receiving a call when communication is not possible. This makes it easy to make a call to the caller telephone. In general, since a user frequently uses from a history display to a call on a mobile phone, it can be executed with a simple operation procedure, and the history information when a call is received when communication is impossible is the same operation procedure. It is possible to improve the operability of the user.

The base station system further includes detection means for detecting that the mobile communication terminal called from the telephone terminal has changed from a communication disabled state to a communicable state, and the transmitting means includes the mobile communication terminal The transmission may be performed when the detection unit detects that the communication state has been changed.
As a result, when the mobile communication terminal receives a telephone call when it is in a communication disabled state, and thereafter the mobile communication terminal becomes in a communicable state, the mobile communication terminal obtains a caller ID, and the mobile communication terminal Will be able to know the caller ID.

  In addition, the transmitting means transmits a predetermined identifier indicating that the call is received when the communication is not established but not the incoming call and a caller number, and the second recording means transmits the caller number to the predetermined call When received together with an identifier, the caller ID is recorded in the incoming call history memory area as sent from the base station system and received, and the mobile communication terminal receives sound or vibration when receiving an incoming call. An incoming call may be notified to the user, and a notification means may be provided to suppress the generation of sound and vibration when receiving the predetermined identifier indicating that the call has been received when communication is disabled.

Thus, the mobile communication terminal identifies a normal incoming call and an incoming call for transmitting the caller ID when called when communication is impossible. Since the notification by vibration is performed, the user can be prevented from being confused.
The holding means holds the date and time when a call is made from the telephone terminal together with the caller number from the telephone terminal, and the transmission means displays the date and time together with the held caller number and the portable communication. The first recording means records the date and time when the incoming call was received in association with the caller number sent at the time of the incoming call in the incoming call history memory area, and the second recording When the means receives the date and time together with the caller number sent from the base station system, the caller number and the date and time are associated with each other and recorded in the memory area for incoming call history, and the history display means further includes: The date and time recorded in the telephone call history memory area may be displayed.

As a result, when the mobile communication terminal receives a call when the mobile communication terminal is in a communication disabled state, the user of the mobile communication terminal can then know when the call has been made.
The holding means further holds a text message sent from the telephone terminal when it is detected that the mobile communication terminal as a call destination is in a communication disabled state when a call is made from the telephone terminal. And the transmission means transmits the text message together with the caller number held to the mobile communication terminal, and the mobile communication terminal further receives the text message sent from the base station system, When a predetermined user operation is received while the sender number is displayed by the third recording means for recording in the memory area and the history display means, it is recorded together with the sender number and then recorded in the memory area It is good also as having a character message display means to display a character message.

Thereby, the user of the mobile communication terminal can know the text message if the caller leaves a text message when the mobile communication terminal receives a call when the communication is disabled. It becomes like this.
Further, the mobile communication terminal according to the present invention is a mobile communication terminal having a telephone function, in which the incoming call history memory area and the caller ID sent when receiving an incoming call are stored in the incoming call history memory area. A first recording means for recording, a second recording means for recording in the memory area for incoming call history when a caller number sent together with a predetermined identifier is received, and an outgoing call recorded in the memory area for incoming call history When a user operation for designating any one of display means for displaying a caller number and a caller number recorded in the memory area for incoming call history is received, a call is made using the designated caller number. And a calling means for performing the call processing.

  As a result, the mobile communication terminal manages the caller number stored when the communication is impossible and then sent together with the predetermined identifier from the radio base station, in the same way as the caller number acquired when receiving a normal call. Therefore, the user can make a call using any caller number by the same operation. Therefore, for example, a caller number stored when communication is impossible can be obtained by a voice message when a user calls a server of an answering machine service with a specific phone number, and the received caller number is transmitted to the mobile communication terminal. As compared with the case of using the conventional technology that can make a call to the caller, the user can easily make a call to the caller according to this mobile communication terminal. .

1 is a schematic configuration diagram of a mobile communication system according to an embodiment of the present invention. It is a functional block diagram of a mobile phone. It is a figure which shows the data structure and content example of the transmission information stored in a transmission information storage part. It is a figure which shows the data structure and content example of the telephone call log | history information stored in the memory of a mobile telephone, and a character message. It is a flowchart which shows the operation | movement regarding the transmission reception of a management server. It is a flowchart which shows the transmission reception process by a management server. It is a figure which shows the communication sequence of the mobile telephone and the base station of a transmission side. It is a figure which shows the communication sequence of the mobile telephone of the transmission side which performs transmission of a character message, and a base station. It is a flowchart which shows the caller number transmission process by the management server. It is a figure which shows the communication sequence at the time of transmitting the transmission information sent from the management server from the base station to a mobile telephone. It is a flowchart which shows the incoming call process in a mobile telephone. It is a flowchart which shows the telephone call log display process in a mobile telephone. It is a figure which shows the LCD screen example concerning the display of a telephone call log.

Hereinafter, a mobile communication system according to an embodiment of the present invention will be described with reference to the drawings.
<Configuration>
FIG. 1 is a schematic configuration diagram of a mobile communication system according to an embodiment of the present invention.
As shown in the figure, the mobile communication system 1 includes a mobile phone 10 on the caller side, a base station 20, a telephone network 30, a base station 40, a mobile phone 50 on the callee side, and a management server 60. And a transmission information storage unit 70.

Here, the base station 20 and the base station 40 are wireless base stations that perform wireless communication with a mobile phone.
In addition, the management server 60 is a device that collects and manages information on which base station the mobile phone is located from the base station that has received location registration from the mobile phone. If the mobile phone of the other party called from the telephone (hereinafter referred to as “destination”) detects that communication is not possible, the caller is notified and the caller ID and the call are received. The transmission information such as time is stored in the transmission information storage unit 70 which is a recording medium, and after the destination mobile phone becomes communicable, the transmission information is transmitted to the destination mobile phone.

Note that the communication disabled state refers to a state in which the power of the mobile phone is turned off or a so-called out-of-service state that is not located in the communicable range of any base station.
FIG. 2 is a functional block diagram of the mobile phone 50.
As shown in the figure, the mobile phone 50 includes a microphone 501, a receiver 502, a speaker 503, an incoming call vibrator 504, a key 505, a liquid crystal display (LCD) 506, a modulation unit 510, a demodulation unit 520, a high frequency unit 530, an antenna 531, and A control unit 540 is provided, and a function for managing outgoing information such as a caller ID in the same manner as a conventional incoming call history even when called in a state where communication is impossible is added to a conventional mobile phone. .

Here, the high-frequency unit 530, the modulation unit 510, and the demodulation unit 520 are transmission / reception units that perform modulation / demodulation by 1 / 4π shift QPSK, multiplexing by TDMA (Time Division Multiplexing) / TDD (Time Division Bidirectional Transmission / Reception), and communication control. is there.
The control unit 540 controls each part of the mobile phone, and is configured to include a memory and a CPU as hardware. With respect to the functional aspect, a telephone incoming call history realized by the CPU in a conventional mobile phone is provided. In order to realize new functions other than general functions such as a display function and a calling function, characteristic functions of a telephone call history storage unit 541, a character message storage unit 542, a display control unit 543, and a calling unit 544 Part.

  The incoming call history storage unit 541 is an area in the non-volatile memory for storing so-called history information such as an incoming date and time and a caller number when there is an incoming call. The incoming call here does not include incoming mail. The incoming call history storage unit 541 stores the telephone number of the person, that is, the caller number and the date and time of the call when there is a person who makes a call with the mobile phone 50 in a communication disabled state as the call destination. It is also used as a place for acquiring and storing from the management server 60 via the base station 40 later.

The character message storage unit 542 is an area in the nonvolatile memory for recording a character message acquired from the management server 60 via the base station 40.
Note that this text message is sent when the mobile phone 50 is in a communicable state after a person who has made a call with the mobile phone 50 in an incommunicable state as the call destination transmits the text message to the management server 60. Are obtained from the management server 60 via the base station 40.

  When the display control unit 543 receives a call incoming history display instruction from the user via a key 505 including a so-called numeric keypad, the display control unit 543 displays history information such as a caller ID stored in the phone incoming call history storage unit 541 on the LCD 506. And a function for displaying a character message stored in the character message storage unit 542 on the LCD 506 when a specific user operation is received.

In addition, the calling unit 544 has a function of calling by using a telephone number input from the user via the key 505 as a call destination, and further, in a state where the caller number is displayed by the display control unit 543, When a call instruction is received from the user via the key 505, the caller number displayed at that time and selected by the user is also sent as a destination.
<Data>
Hereinafter, important data handled in the mobile communication system 1 will be described.

FIG. 3 is a diagram illustrating a data configuration and content example of the transmission information stored in the transmission information storage unit 70.
The outgoing information 710 is information that is recorded in the outgoing information storage unit 70 by the management server 60 when the mobile phone that is the destination when the outgoing call is in an incommunicable state, as shown in FIG. In addition, the transmission information 710 includes a transmission destination number 711, a caller number 712, a date and time 713, and a text message 714.

Here, the destination number 711 indicates the telephone number of the mobile phone that has been designated as the destination and cannot communicate, the caller number 712 indicates the telephone number of the source telephone, and the date and time 713 is transmitted. Indicates the date and time.
The character message 714 indicates a character string constituting the character message when the caller transmits the character message to the management server 60, and indicates that the character string does not exist in other cases.

Note that the management server 60 cannot acquire the caller number when the caller is set to non-notification, but here, it is assumed that such setting is not made.
FIG. 4 is a diagram showing an example of data structure and contents of incoming call history information and text messages stored in the memory of the mobile phone 50.

The incoming call history information 720 includes an item number 721, a caller number 722, a date and time 723, and a text message address 724.
The item number 721 is a number determined so as to be different for each record. For example, the item number 721 is updated as needed so that a record having an older date and time 723 becomes a larger number.
The caller number 722 indicates the caller number transmitted from the management server 60 or the number of the caller telephone when the mobile phone 50 is communicable and actually receives a call.

The date and time 723 indicates the date and time transmitted from the management server 60 or the date and time of incoming call when the mobile phone 50 is communicable and actually receives a call.
The character message address 724 indicates the address of the memory area storing the character message when the character message is transmitted from the management server 60, and indicates that there is no character message by a null value in other cases.
<Operation>
Hereinafter, the operation of the mobile communication system 1 having the above configuration and handling the above data will be described.

FIG. 5 is a flowchart showing an operation related to call reception of the management server 60.
When a call is made from the mobile phone 10 as a party to call the mobile phone 50, the base station 20 transmits a message to the management server 60 via the telephone network.
In response to this, the management server 60 determines that a call has been made (step S11), performs reception reception processing for obtaining a caller number and the like (step S12), and transmits the caller number and the like to the mobile phone 50. The caller number transmission process is performed (step S13).

FIG. 6 is a flowchart showing a call reception process performed by the management server 60.
The management server 60 acquires the caller number and the callee number transmitted from the mobile phone 10 via the base station 20 (step S21), acquires the current date and time (step S22),
Based on the information collected from the base station that has received the location registration, the mobile phone that is in the communicable range is controlled to call the mobile phone that is the destination (step S23).

If the mobile phone called in step S23 is in a communicable state and the call is successful (step S24), the management server 60 causes the caller mobile phone to communicate with the callee mobile phone (step S25).
On the other hand, if the mobile phone called in step S23 is in a communication impossible state and cannot be called (step S24), the management server 60 sends the callee number, caller number, and information acquired in steps S21 and S22. The current date and time are associated with each other and recorded as transmission information in the transmission information storage unit 70 (step S26).

  Subsequent to step S26, the management server 60 provides voice guidance to the source mobile phone that it cannot be called out of service area or powered off, and that a text message can be transmitted if necessary. If a text message is transmitted from the originating mobile phone (step S27), the text message is also recorded in the transmission information storage unit 70 so as to be associated with the caller number or the like (step S28). Finish the process. If no text message is transmitted from the caller's mobile phone (step S27), the management server 60 skips step S28 and ends the call reception process.

7 and 8 are diagrams showing a communication sequence between the calling-side mobile phone 10 and the base station 20, and FIG. 7 shows an example in which the calling-side mobile phone 10 does not transmit a text message. An example in which the mobile phone 10 transmits a text message is shown.
The user of the mobile phone 10 inputs a text message by operating the keys of the mobile phone 10 according to the voice guidance, and the mobile phone 10 uses the text message as a UUI (User User Information) by the inter-user information notification service function as a base station. 20 to the management server 60.

FIG. 9 is a flowchart showing caller number transmission processing by the management server 60.
The management server 60 refers to the transmission information 710 in the transmission information storage unit 70 to determine whether or not there are one or more records including the recorded caller ID (step S31). Pays attention to one record that has not been noticed, that is, one record that has not yet been noticed (step S32), and is it currently communicable with the mobile phone of the destination number in the noticed record? (Step S33). If the communication is possible, the caller number in the record of interest, the date and time, and if there is a text message, the text message, The base station is controlled to transmit (step S34).

In step S33 and step S34, for example, it is determined that communication is possible by newly registering a location from a mobile phone that has once become incapable of communication, that is, it is detected that communication is possible, and the mobile phone is This is done by sending a caller ID.
Subsequent to step S34, the management server 60 deletes one record including the caller number from the transmission information storage unit 70 (step S35), and there is still an unfocused record including an unfocused caller number and the like. If it does, it will return to step S32, and if it does not exist, caller number transmission processing will be completed (step S36).

FIG. 10 is a diagram showing a communication sequence when transmitting the transmission information sent from the management server from the base station to the mobile phone.
This communication sequence corresponds to step S34 in FIG. 9, and the base station that has received the caller number, date and time, and text message, if any, from the management server via the telephone network has become communicable. This is done to transmit these to the mobile phone 50.

  As shown in FIG. 10, this communication sequence is similar to the communication sequence for making a normal telephone call, the base station notifies the incoming call, the mobile phone issues a link channel establishment request, and the base station Accordingly, the base station performs link setting when the mobile phone receives an incoming call response. However, in this call setting, the calling subaddress field 611 of the call setting information 610 generally used includes an identifier indicating that the information is unique to the user and information such as a caller ID when communication is impossible (hereinafter referred to as “communication”). Stores a predetermined identifier indicating that the call is called “unavailable call information”, a caller ID, date and time, and information indicating the presence or absence of a text message. If there is a text message, call setup is performed. A UUI field 612 is provided in the information to store a character string constituting a character message, and the base station transmits it to the mobile phone.

FIG. 11 is a flowchart showing an incoming call process in the mobile phone 50.
When the mobile phone 50 receives a call from the base station and performs an incoming call, the mobile phone 50 performs an incoming call process shown in FIG.
The mobile phone 50 that has received the call refers to the call setting information by the control unit 540, determines whether or not the call information is received when communication is disabled (step S41), and receives the call information when communication is disabled. When there is no incoming call, that is, in the case of a normal incoming call, the caller ID is acquired, the current time is acquired, and these are associated and stored in the incoming call history storage unit (step S42), and the speaker 503 or incoming vibrator 504 is obtained. Is controlled to notify the user of the incoming call by sound or vibration (step S43), and the same processing as when the conventional mobile phone is called is performed.

  In addition, when it is determined in step S41 that the call information when communication is impossible is received, the mobile phone 50 stores the call reception history by associating the caller number with the date and time in the call information when communication is disabled. If there is a character message by referring to the information indicating the presence or absence of the character message in the called information when communication is impossible (step S45), the character message is stored in the character message storage unit. This is stored in 542 (step S46), and the incoming call process is terminated.

Here, the above-described operation will be briefly described with reference to a specific example.
For example, on the assumption that the phone number of the mobile phone 10 is 090190x1234 and the phone number of the mobile phone 50 is 0909999999xxx, and the mobile phone 50 is out of service area, the mobile phone 10 makes a call to the mobile phone 50. Then, since the mobile phone 50 is in a communication disabled state, the management server 60 responds to the mobile phone 10 with voice guidance. At this time, if the user of the mobile phone 10 inputs the text message “Arrived at xx.”, The contents of the second record illustrated in FIG. Will be recorded.

  Thereafter, when the mobile phone 50 is moved within the communicable range of the base station 40, the incoming call history of the mobile phone 50 is stored by the caller number transmission processing by the management server 60 and the incoming call processing of the mobile phone 50. The unit 541 stores a record with the item number 1 in the incoming call history information illustrated in FIG. 4, and the character message storage unit 542 stores the character message “Arrived at xx” illustrated in FIG. The Note that the record of item number 2 and item number 3 in the incoming call history information illustrated in FIG. 4 is the content of information stored when the mobile phone 50 has received a direct incoming call in a state in which communication is possible in the past. An example is shown.

Hereinafter, the operation related to the display of the incoming call history and the outgoing call in the mobile phone 50 will be described.
FIG. 12 is a flowchart showing the incoming call history display process in the mobile phone 50.
When receiving a call incoming history display instruction from the user, the control unit 540 of the mobile phone 50 executes the incoming call history display process by the display control unit 543 and the calling unit 544.

  First, the display control unit 543 enumerates and displays the caller number and the date and time stored in association with each other in the incoming call history storage unit 541 (step S51). The display control unit 543 displays the enumerated display from the top of the LCD in ascending order of the item number 721 in the incoming call history information 720. In the initial state, the top set is selected. Control is also performed to allow the user to select any one set by key operation. The selected set is highlighted such as inversion of the background color in the LCD.

Subsequent to step S51, when the user accepts a specific operation corresponding to a text message display instruction (step S52), the display control unit 543 sends a text message corresponding to the selected set to the telephone. It is obtained by referring to the text message address in the incoming call history information and displayed on the LCD (step S53).
Further, following step S52 or step S53, when the calling unit 544 receives a specific operation corresponding to the calling instruction from the user (step S54), the calling unit 544 sets the caller number in the selected set. Dialing as a destination and calling (step S55).

FIG. 13 is a diagram showing an example of an LCD screen related to the display of the incoming call history. FIG. 13 (a) shows the screen that is displayed when an instruction to display the incoming call history is given by the user. b) shows a screen that is displayed when the user gives an instruction to display a text message.
In the screen example 810, a set of histories 811 indicates information such as a caller number that is called when the mobile phone 50 is in a communication disabled state and is subsequently transmitted from the management server 60, and is currently selected. As a result, the background is reversed, and a mark “Me” clearly indicates that a text message exists for the user. Note that the call mark 801 and the message mark 802 at the bottom of the screen example 810 are treated as calling instructions when a predetermined operation key near the center of the mobile phone is pressed, and predetermined operation keys near the right of the mobile phone. This is a mark for indicating to the user that if the button is pressed, it is handled as a text message display instruction.

Screen example 820 is a screen displayed on LCD 506 by display control unit 543 when an operation key corresponding to a text message display instruction is pressed in the state shown in screen example 810. In the text message display field 821 in the screen example 820, text messages corresponding to the history set 811 are displayed.
The list mark 803 at the bottom of the screen example 820 indicates to the user that if a predetermined operation key near the right side of the mobile phone is pressed, it is handled as a display instruction of the screen example 810 that is a history list display screen. It is a mark.

If the user issues a call instruction by pressing a predetermined operation key near the center of the mobile phone while the screen example 810 or the screen example 820 is displayed, the telephone number 090190x1234 is dialed by the calling unit 544. A call is made with the mobile phone 10 as the callee.
<Supplement>
As described above, the mobile communication system according to the present invention has been described based on the embodiments, but the present invention is not limited to these embodiments. Hereinafter, modifications of the embodiment will be described.
(1) The mobile phone 50 shown in the above embodiment may be a PDA or the like as long as it has a telephone function. Further, the mobile phone 10 on the caller side does not necessarily need to be a mobile phone, and may be a phone that is wired with a telephone exchange.
(2) In the above-described embodiment, the mobile phone that has been unable to communicate has been detected to be communicable by a new location registration from the mobile phone. The detection method is not limited to this. For example, the management server may call the mobile phone repeatedly at regular intervals and detect that the communication is possible when there is a response. Instead of transmitting the necessary information to the mobile phone after detecting that the communication is possible, the transmission in step S34 may be repeated until the transmission is successful.
(3) In the above-described embodiment, the configuration for realizing the function of transmitting the text message sent from the caller during the communication disabled state to the mobile phone is also shown. You may abbreviate | omit the function which concerns on. Further, the voice guidance performed from the management server to the telephone on the calling side when the destination is in a communication disabled state may be omitted.
(4) The function sharing between the management server and the base station shown in the above embodiment is an example. For example, the base station may include the function of the management server 60, and one or a plurality of base stations The base station system, which is the management server, saves the caller ID, etc., when the destination mobile phone is in a communication-disabled state, and the outgoing calls stored after the destination mobile phone is in a communicable state It suffices if information such as the party number is transmitted to the mobile phone.
(5) A program for causing the CPU to execute various processes (see FIGS. 11 and 12) for realizing each function of the mobile phone shown in the above-described embodiment is recorded on a recording medium or various communication paths, etc. It can also be distributed and distributed via Examples of such a recording medium include an IC card, an optical disk, a flexible disk, and a ROM. The distributed and distributed program is used by being stored in a memory or the like that can be read by a CPU in a mobile communication terminal including a CPU, and the CPU executes the program so that the mobile phone shown in the embodiment Each function in is realized.

  The mobile communication system according to the present invention is useful as a system that contributes to improving the operability of a mobile object, that is, a portable communication terminal.

DESCRIPTION OF SYMBOLS 1 Mobile communication system 10 Mobile phone 20 Base station 30 Telephone network 40 Base station 50 Mobile phone 60 Management server 70 Transmission information storage part 501 Microphone 502 Receiver 503 Speaker 504 Incoming vibrator 505 Key 506 LCD
510 Modulation unit 520 Demodulation unit 530 High frequency unit 531 Antenna 540 Control unit 541 Incoming call history storage unit 542 Character message storage unit 543 Display control unit 544 Calling unit

Claims (4)

A mobile communication terminal having a telephone function,
Incoming call history memory area,
A first recording means for recording a caller number sent at the time of an incoming call and the date and time of the current incoming call of the terminal in the memory area for incoming call history;
A second recording means for recording the caller ID stored in the server when the communication is disabled and the date and time when the call was transmitted when the communication is enabled in the memory area for incoming call history;
A plurality of histories recorded in the memory area for incoming call history, and display means for distinguishing whether or not there is a message when communication is impossible,
When a plurality of histories are simultaneously displayed on the display means, at least one set of the caller number and the date and time is displayed by a user operation,
The mobile communication terminal, wherein the displayed date and time is a date and time received from a server in the case of an incoming call history in a communication disabled state. When at least one set of the caller number and the date and time is displayed, a call can be made to the caller number displayed and selected as a destination, and a plurality of destinations selected when a history is simultaneously displayed on the display means The mobile communication terminal according to claim 1, wherein the mobile communication terminal can make a call.   3. The mobile communication terminal according to claim 2, wherein when at least one set of the caller ID and the date and time is displayed, a message is displayed together when the communication history is not available. When at least one set of the caller number and the date and time is displayed, the display instruction is operated to switch from the set of the caller number and the date and time to simultaneous display of a plurality of histories. The mobile communication terminal according to claim 1, wherein the mobile communication terminal is controlled so as to indicate to a user.

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