JPH0795277A - Electronic telephone directory system - Google Patents

Abstract

PURPOSE:To easily retrieve a frequently called party number by displaying the content information of a history table for storing the call destinations in the past of a telephone set provided with a display part and selecting a call. CONSTITUTION:A control part 11 is provided with a function for signals transmitted from the telephone sets 31-3N through an exchange 20. Then, a table for hierarchically executing the retrieval of telephone numbers provided in an electronic telephone directory storage part 12 by reception signals is provided and also a history storage part 13 is provided with an input/output function for reading required information from the history table relating to a called party frequently called by the telephone sets 31-3N and further the function for transmitting the read information through the exchange 20 to the telephone sets 31-3N. Then, the telephone set which receives the transmission performs display on the display part and lets one of the selection items of display information selected by a cursor operation. Thus, the control part 11 dials a specified telephone number and performs the transmission.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic telephone directory system, and more particularly to an electronic telephone directory system for quickly searching for a desired telephone number from a large number of telephone numbers.

[0002]

2. Description of the Related Art An example of a memory content retrieval system for an electronic telephone having a memory content display function for such a purpose is as follows.
It is described in JP-A-3-11860. In this technique, first, the index character is searched, and then the contents of the dial memory including the index character as data are sequentially searched. For example, when the initial letter is used as a search character, the initial letter is first searched, and after this search, individual telephone numbers having this initial letter are searched. As described above, according to this technique, a desired telephone number can be quickly searched by performing the search in two stages.

[0003]

In the above-mentioned prior art,
There were the following problems.

When an individual uses a telephone, the destination of the call is usually limited. That is, a call is frequently made to a specific partner.

However, in the above-mentioned conventional technique, the search must be performed by the same operation every time, regardless of the call destination to be searched. This is also the case when searching for a person to call frequently. Therefore, it is troublesome to search for a call destination that is frequently called for each call. Therefore, after all, the telephone number of the call destination to be frequently called is to be recorded in a memo or the like.

As described above, the memory content retrieval system of the telephone with memory content display function has the problem that it is inconvenient because it requires the same labor as a normal retrieval even when searching for a person who frequently talks. there were.

[0007]

In order to solve such a problem, an electronic telephone directory system of the present invention has a telephone having a display unit and a history table for storing past call destinations of the telephone, An electronic telephone directory management device that displays information based on the contents of the history table on the display unit of the telephone.

[0008]

Next, a first embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 1, the electronic telephone directory system of this embodiment is an electronic telephone directory managing device 10, N telephones 31 to 3N, an electronic telephone directory managing device 10 and telephones 31 to 31.
It is provided with an exchange 20 that is provided between the telephones 3 to 3N and connects the telephones 31 to 3N and the electronic telephone directory management apparatus 10.

The electronic telephone directory management apparatus 10 includes an electronic telephone directory storage unit 12 for storing telephone directory data such as telephone numbers, and a history storage unit 13 for storing the history of past call destinations of the respective telephones 31 to 3N. , The electronic telephone directory storage unit 12 and the history storage unit 13 and the telephone 3 via the exchange 20.
The control unit 11 is also connected to 1 to 3N and controls the operation of the electronic telephone directory management device 10.

The control unit 11 has the following functions. First, it has a reception function of receiving signals transmitted from the telephones 31 to 3N via the exchange 20. Second,
It has an input / output function of reading out necessary information from the electronic telephone directory storage unit 12 and the history storage unit 13 based on the received signal. Thirdly, the exchange 2 uses the read information.
It has a transmission function of transmitting this information to the telephones 31 to 3N via 0. Fourthly, when a telephone number is designated, it has a dial function for dialing this telephone number. Fifth, it has a control function for controlling the above-mentioned first to fourth functions.

The control unit 11 having such a function can be realized by a combination of a transmission / reception device, an input / output device, a control device, and a control program executed by this control device. Of these, the devices other than the control program are normally used. Therefore, detailed description is omitted. On the other hand, the operation of the control program will be described in detail later.

The electronic telephone directory storage unit 12 is a storage device such as a magnetic disk device. Details of the data stored in the electronic telephone directory storage unit 12 are shown in FIGS. 2 and 3. Referring to FIG. 2, a section table 41 and a section table 45 are stored in the electronic telephone directory storage section 12. The department table 41 and the department table 45 are tables provided for hierarchically executing a search for a telephone number. The part table 41 is composed of a part code 51 and a part name 42 which is the name of this part. Control unit 11
Can refer to the department table 41 to retrieve the corresponding department name 42 from the department code 51.
For example, the department name "General Affairs Department" can be searched from the department code 51 "A".

On the other hand, the section table 45 has a department code 51.
And a section code 52 indicating a section belonging to this section and a section name 46 of this section. The control unit 11 combines the department code 51 and the department code 52 to combine the department table 45.
Can be obtained to obtain the section name 46 of this section. For example, the section name "first section" can be searched from the code "Aa" (hereinafter referred to as "section code"), which is a combination of the section code "A" and the section code "a".

Referring to FIG. 3, the electronic telephone directory storage unit 12
A telephone number table 50 is also stored in. The telephone number table 50 includes a department code 51, a section code 52,
It is composed of a person-in-charge code 53 of a person in charge of this section, a person-in-charge name 54 which is the name of this person in charge, and a telephone number 55 which is the telephone number of this person in charge. Control unit 1
1 is department code 51, section code 52, and person code 53
The telephone number table 50 can be searched from the combination of the above to obtain the person-in-charge name 54 and the telephone number 55. For example, the code "Aa1" can be searched for the person in charge 54 "Taro Yamagami" and the telephone number 55 "110-111".

The history storage unit 13 is a storage device such as a magnetic disk. The storage capacity of the history storage unit 13 may be smaller than that of the electronic telephone directory storage unit 12. Therefore, the history storage unit 13 can be configured by a semiconductor storage element such as RAM. Details of the data stored in the history storage unit 13 are shown in FIG. Referring to FIG. 4, in the history table 60, for each of the telephones 31 to 3N, 16
The individual history data 62 is stored. Historical data 62
Is a department code. The history data 62 is
It is a department code of the telephone call destination of the telephone 31 to 3N. Nos. 1 to 16 are included in each of the history data 62.
Number is assigned. The order is the descending order of the call date and time. That is, the first history data 62 indicates the most recently called party. For example, referring to FIG. 4, the party with whom the telephone 31 most recently made a call was the first section of the Legal Department with the department code "Ca". The second history data 62 indicates the callee who made a call before the one. The 16th history data 62 is the history table 6
In the call history stored in 0, the oldest call destination is shown. By configuring the history table 60 as described above, the department / section code of the department / section that frequently calls is recorded in the history table 6.
It will be held in the higher order of 0.

The telephones 31 to 3N are telephones having a display function. An overview of the phones 31 to 3N is shown in FIG. Referring to FIG. 5, each of the telephones 31 to 3N has a display unit 311 including a liquid crystal display, a ten-key pad 312 for inputting a telephone number and the like, and an execution button 313.
, Upper screen button 314 and upward movement button 315
And a downward movement button 316. The four buttons of the execution button 313 to the downward movement button 316 are input means for executing various kinds of functions such as an electronic telephone directory. The data transmitted from the control unit 11 is displayed on the display unit 311. The upper-level screen button 314 is used to display the upper-level screen when the screen displayed on the display unit 311 has a hierarchical structure. For example, when the upper screen button 314 is pressed while the section-level search is being executed, it is possible to search for the department level, which is one level above. The upward movement button 315 and the downward movement button 316 are mainly used for moving the cursor on the menu screen.

Next, the menu operation repeatedly used in this embodiment will be described. Here, the menu operation means that the control unit 11 moves the selection item and the cursor to the telephone 31 to
This is an operation of displaying on the 3N display unit 311 and causing the user of the telephones 31 to 3N to move the cursor and select one of the selection items. Referring to FIG. 6A, when the menu operation is executed, the display unit 311 displays a plurality of selection items and a cursor. The position of the cursor can be moved up and down by the upward movement button 315 and the downward movement button 316. The user can select one selection item by moving the cursor to the selection item to be selected and pressing the execution button 313.

Next, the menu operation when all the selection items cannot be displayed on one screen will be described. Figure 6
Referring to (b), in this case, eight selected items can be displayed on one screen. On the other hand, the total number of selection items is 56.
It is an individual. Therefore, it is not possible to display all selection items on one screen. In such a case, the 56 selection items are divided into seven screens 1 to 7. Therefore, for example, the screen 1 includes the first to eighth selection items. At the start of the menu operation, the screen 1 is displayed on the display unit 311 and the cursor is positioned at the first selection item. Then, when the cursor is moved downward to extend beyond the lower limit of the screen, the screen 2 is displayed. At this time, the cursor is positioned at the ninth selection item, which is the highest selection item on the screen 2. Then, when the cursor extends beyond the lower limit of the screen 7, the screen 1 is displayed again. Such switching of the display screen is similarly executed when the cursor is moved upward. in this way,
According to such a menu operation, the total number of selection items is 1
Even if the number of items that can be displayed on one screen is exceeded, any selection item can be selected.

The above-described menu operation is performed by the control unit 11
It is realized by a control program executed by. Programs for performing such menu operations are generally known. Therefore, a detailed description will not be given here. The data input to the program that executes this menu operation is the data of the selection item. That is,
This program, when given a selection item, executes the menu operation as described above and outputs the selection item selected by the user. Next, the operation of this embodiment will be described with reference to the drawings.

FIG. 7 is a diagram showing the transition of the display screen in one operation example of this embodiment. In addition, FIG. 8 to FIG.
3 is a flowchart showing the operation of the control unit 11.

Referring to FIGS. 7 and 8, step 1
In 01, on the display portion 311 of the telephones 31 to 3N,
The general menu is displayed. Referring to step 101 in FIG. 7, the second selection item in the general menu includes an electronic telephone directory.

Referring to FIG. 8, in step 102, the control section 11 determines whether or not the electronic telephone directory is selected. If the electronic telephone directory is selected, step 1
03 is executed. The description of the operation when the electronic telephone directory is not selected is omitted here. Now, it is assumed that the electronic telephone directory is selected by the telephone 31. Therefore, step 103 is executed.

Referring to FIG. 7, in step 103, it is determined whether or not there is history data 62 corresponding to the telephone 31 in the history table 60. When the history data 62 does not exist at all, that is, when the telephone 31 has never used the electronic telephone directory in the past, the processing from step 201 shown in FIG. 9 is executed. On the other hand, when the history data 62 exists, step 104-1 is executed.

Referring to FIG. 8, in step 104-1, the control unit 11 reads the history data 62 from the history storage unit 13. Then, the control unit 11 uses the division table 41 and the division table 45 in the electronic telephone directory storage unit 12 to
The department name of the department indicated by the history data 62 is read. Referring to FIG. 4, the history data 62 of the telephone 31 includes “Ca”, “Aa”, “Ba”, ..., “Bb” in order from the first.
Is. Therefore, "Legal Affairs Department No. 1", "General Affairs Department No. 1"
, “Accounting Department 1st Section”, ..., “Accounting Department 2nd Section” are read out as the section names. When step 103 ends, step 104 is executed.

Referring to FIGS. 7 and 8, step 1
At 04-2, the control unit 11 executes the menu operation described above. The selection item at this time is the department name read in step 103.

The history data 62 indicates the destination of the call recently made. For this reason, the department or department of the called party who frequently calls is displayed on this menu screen with a very high probability. When the target department / section exists in these selection items, the user positions the cursor at the position of the department / section and presses the execute button 313. Also, among these choices,
If the desired department does not exist, the upper screen button 31
Press 4. When step 104-2 ends, step 105 is executed.

Referring to FIG. 8, in step 105, it is determined whether the upper screen button 314 has been pressed. If the upper screen button 314 has not been pressed, step 106 is executed. On the other hand, when the upper screen button 314 is pressed, the processing from step 201 onward shown in FIG. 9 is executed. Now, it is assumed that the upper screen button 314 has not been pressed. Therefore, step 106 is executed.

Referring to FIG. 8, in step 106, it is determined whether the execute button 313 has been pressed. If the execute button 313 is pressed, that is, if any of the selection items is selected, step 10
7 is executed. On the other hand, if the execute button 313 has not been pressed, step 104-2 is executed again,
Menu operation continues. Referring to FIG. 9,
It is assumed that the execute button 313 is pressed at the position of “Accounting Department First Section”. Therefore, step 107 is executed.

Referring to FIG. 8, in step 107, the department code of the selected department is read. Now, "Ba", which is the department code of Accounting Department No. 1, is read. When step 107 ends, step 108-
1 is executed.

Referring to FIG. 8, in step 108-1, the control unit 11 searches the telephone number table 50 in the electronic telephone directory storage unit 12, and finds the person in charge who belongs to the department selected in step 107. , The person in charge 54 is read. At this time, the department code “Ba” entered in step 107
Is used as a key. In this case, "Taro Kaijo", "Jiro Kaijo", and "Saburo Kaijo" who are persons in charge of the first section of the accounting department are read out. When step 108-1 ends, step 108-2 is executed.

Referring to FIGS. 7 and 8, step 1
At 08-2, the control unit 11 executes a menu operation. The selection item at this time is the person-in-charge name 54 read in step 108-1. When step 108-2 ends, step 109 is executed.

Referring to FIG. 8, in step 109, the control section 11 determines whether or not the execute button 313 has been pressed. When the execute button 313 is not pressed, the menu operation of step 108 is continuously executed. On the other hand, when the execute button 313 is executed,
Step 110 is executed. Now, assume that Jiro Kaijo is selected. Therefore, step 110 is executed.

Referring to FIG. 8, in step 110, the person code 53 of the selected person is read. In this case, "2" indicating Jiro Kaijo is read. When step 110 ends, step 111-1
Is executed.

Referring to FIG. 8, in step 111-1, the control section 11 reads the telephone number 55 of the person in charge selected in step 110 from the telephone number table 50 in the electronic telephone directory storage section 12. At this time, step 10
The department code “Ba” input in step 7 and the person-in-charge code 53 “2” input in step 110 are used as keys. When step 111-1 ends, step 11
1-2 is executed.

Referring to FIG. 8, in step 111-2, control unit 11 dials the telephone number read in step 111-1. When step 111-2 ends, when step 111-2 ends, step 1
12 is executed.

Referring to FIG. 8, in step 112, it is determined whether the call has ended. When the call ends, step 113 is executed.

In step 113, the history table 6
0 is updated. Details of the update operation of the history table 60 will be described later.

Upon completion of step 113, the control unit 11
Ends the operation, and the operation of the entire electronic telephone directory management apparatus 10 also ends.

As described above, in this embodiment, the call destinations frequently called are first displayed as a menu screen, so that the call destinations frequently called can be quickly searched.

Next, when it is determined in step 103 that the history table 60 is empty, or in step 10
5, the operation when the upper screen button 314 is pressed will be described. This is an operation when the history data 62 cannot be used because no call has been made in the past, or when a call is made to a call destination other than the call destination stored in the history data 62.

Referring to FIG. 9, when the history table 60 is determined to be empty in step 103, or
When the upper screen button 314 is pressed in step 105, step 201 is executed. Now, in step 105, it is assumed that the upper screen button 314 is pressed.

Referring to FIG. 9, in step 201-1 the control section 11 reads out the section names 42 of all the sections from the section table 41 in the electronic telephone directory storage section 12. Referring to FIG. 2, in this case, the “general affairs department”, the “accounting department” and the “legal affairs department” are read. When step 201-1 ends, step 202-2 is executed.

Referring to FIGS. 7 and 9, step 2
In 01-2, the control unit 11 executes a menu operation. The selection item at this time is the copy name 42 read in step 202-1. That is, in this step, the search for the department level is performed. Step 202-
When step 2 ends, step 202 is executed.

Referring to FIG. 9, in step 202, the control section 11 determines whether or not the upper screen button 314 has been pressed. If the upper screen button 314 has not been pressed, step 203 is executed. on the other hand,
When the upper screen button 314 is pressed, step 101 of FIG. 8 is executed. That is, the comprehensive menu is displayed again. Now, it is assumed that the upper screen button 314 has not been pressed. Therefore, step 203 is executed.

Referring to FIG. 9, in step 203, the control section 11 determines whether or not the execute button 313 has been pressed. When the execute button 313 is pressed, that is, when any one of the selection items is selected, step 204 is executed. On the other hand, if the execute button 313 has not been pressed, step 201 is executed again and the menu operation is continued. Referring to FIG.
Now, it is assumed that the execute button 313 is pressed at the position of "general affairs department". Therefore, step 204 is executed.

Referring to FIG. 9, in step 204, the department code 51 of the selected department is read. Currently, the department code 51 of the general affairs department, "A", is read.
When step 204 ends, step 205-1 is executed.

Referring to FIG. 9, in step 205-1, the control section 11 reads the section name 46 of the section belonging to the section selected in step 51 from the section table 45 in the electronic telephone directory storage section 12. put out. At this time, the copy code 51 = "A" input in step 204 is used as a key. Referring to FIG. 2, in this case, “first section” and “second section”
Section "is read. When step 205-1 ends, step 205-2 is executed.

Referring to FIGS. 7 and 9, step 2
At 05-2, the control unit 11 executes a menu operation. The selection item at this time is the section name 46 read in step 205-1. When step 205-2 ends, step 206 is executed.

Referring to FIG. 9, in step 206, the control section 11 determines whether or not the upper screen button 314 has been pressed. If the upper screen button 314 has not been pressed, step 207 is executed. on the other hand,
When the upper screen button 314 is pressed, step 201 is executed. That is, the department level search is performed again. Now, it is assumed that the upper screen button 314 has not been pressed. Therefore, step 207 is executed.

Referring to FIG. 9, in step 207, the control section 11 determines whether or not the execute button 313 has been pressed. When the execute button 313 is pressed, that is, when any one of the selection items is selected, step 208 is executed. On the other hand, if the execute button 313 is not pressed, step 205 is executed again and the menu operation is continued. Now, it is assumed that the execute button 313 is pressed at the position of "second lesson". Therefore, step 208 is executed.

Referring to FIG. 9, in step 208, the section code 52 of the selected section is read. Now, the section code 52 of the second section, "b", is read.
When step 208 ends, step 209-1 is executed.

Referring to FIG. 9, in step 209-1, the control section 11 determines from the telephone number table 50 in the electronic telephone directory storage section 12 the person in charge 54 of the person in charge who belongs to the section selected in step 208. Read out. At this time, the part code 51 input in step 204 and the step 2
The section code 52 input at 08 is used as a key. Referring to FIG. 3, in this case, “Taro Yamashita”, “Jiro Yamashita”, “Saburo Yamashita” and “Shiro Yamashita” are read. When step 209-1 ends, step 209
-2 is executed.

Referring to FIGS. 7 and 9, step 2
At 09-2, the control unit 11 executes a menu operation. The selection item at this time is the person-in-charge name 54 read in step 209-1. That is, a person-level search is performed. When step 209-2 ends,
Step 210 is executed.

Referring to FIG. 9, in step 210, the control section 11 determines whether or not the upper screen button 314 has been pressed. If the upper screen button 314 has not been pressed, step 211 is executed. on the other hand,
When the upper screen button 314 is pressed, step 205 is executed. That is, the department level search is performed again. Now, it is assumed that the upper screen button 314 has not been pressed. Then, step 211 is executed.

Referring to FIG. 9, in step 211, the control section 11 determines whether or not the execute button 313 has been pressed. When the execute button 313 is pressed, that is, when any one of the selection items is selected, step 212 is executed. On the other hand, if the execute button 313 has not been pressed, step 209 is executed again and the menu operation is continued. Now, "Jiro Yamashita"
It is assumed that the execute button 313 is pressed at the position. Therefore, step 212 is executed.

Referring to FIG. 9, in step 212, the person code 53 of the selected person is read. Now, Jiro Yamashita's code 53 is "2".
Is read.

Referring to FIGS. 8 and 9, step 2
After the end of 12, the processing after step 111 is performed.
Step 11 out of Step 111 to Step 113
Since 1 and 112 have already been described, description thereof will be omitted here.

As described above, according to the present invention, even if the desired call destination does not exist in the history data 62, the desired call destination can be searched for by the three-level hierarchical structure of the department, section and person in charge. it can. Therefore, it is possible to quickly perform a search even at a call destination other than a call destination that is frequently called.

Next, the operation of updating the history table 60 executed in step 113 will be described. In this updating operation, the history table 60 is effectively used. Referring to FIG. 10, when the history table 60 update operation is executed, first, step 301 is executed.

In step 301, it is determined whether or not the selected department / section code already exists in the history data 62. For example, referring to FIG. 11, the department / section code selected this time is “Ba”. Of the history data 62 of the telephone 31, the third history data 62
Is “Ba”, which matches the department code selected this time. Thus, if the selected department / section code exists in the history table 60, step 302 is executed. On the other hand, referring to FIG. 12, the department code “Ab” selected this time does not exist in the history data 62 of the telephone 31. Thus, when the selected department / section code does not exist in the history data 62, step 304 is executed.

First, steps 302, 303 and 306 will be described with reference to FIGS.

Referring to FIG. 10, in step 302, the same department code selected from the history data 62 is erased. In this case, the third history data 62 is deleted.

Referring to FIG. 10, in step 303, the history data 62 younger than the one deleted in the previous step is shifted backward by one. In this case, the second history data is moved to the third and the first history data is moved to the second. No processing is performed on the fourth and subsequent history data 62. Step 3
After the end of 03, step 306 is executed.

Referring to FIG. 10, in step 306, the department / section code selected this time is set in the first history data 62. In this case, "Ba" is set as the first history data 62. As a result, the department code "Ba" indicating the most recent call destination is displayed at the beginning of the next menu screen.

Next, step 304 will be described.

Referring to FIG. 10, in step 304, the last history data 62 is deleted. Referring to FIG. 12, in this case, the 16th history data 62 “Bb” is deleted. When step 304 ends, steps 303 and 306 described above are executed. In this case, in step 303, the first to fifteenth history data 62 are shifted backward one by one. Then, in step 306, the department code “Ab” selected this time is the first history data 62.
Is set to.

The following effects can be obtained by performing the updating operation of the history data 62 as described above. First
In addition, the name of the department / section of the most recently called party is always set at the beginning of the history data 62. Secondly, even if a call is repeatedly made with the same callee, the department code of this callee does not occupy the history data 62.

[0069]

As described above, according to the present invention, the electronic telephone directory management apparatus 10 is provided with the history storage unit 13 and the call history is stored in the history storage unit 13, and the electronic telephone directory is searched. Displays the call destination stored in the history storage unit 13 in a menu format, and allows the user to select a desired call destination from the menu. Therefore, the invention of the present application has an effect that the telephone number of a call destination, which is frequently called, can be quickly searched.

[0070]

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a diagram showing a section table 41 and a section table 45 stored in an electronic telephone directory storage unit 12.

FIG. 3 is a diagram showing a telephone number table 50 stored in an electronic telephone directory storage unit 12.

FIG. 4 is a history table 60 stored in a history storage unit 13.
FIG.

FIG. 5 is a diagram showing a structure of telephones 31 to 3N.

FIG. 6A is a diagram showing a display screen during menu operation. FIG. 6B is a diagram showing a menu operation.

FIG. 7 is a diagram showing a transition of a display screen according to the operation of the first exemplary embodiment of the present invention.

FIG. 8 is a flowchart showing the operation of the control unit 11.

9 is a flowchart showing the operation of the control unit 11. FIG.

FIG. 10 is a flowchart showing the operation of the control unit 11 in the operation of updating the history table 60.

FIG. 11 is a diagram showing an update operation of a history table 60.

FIG. 12 is a diagram showing an update operation of a history table 60.

[Explanation of symbols]

 10 electronic phone book management device 11 control unit 12 electronic phone book storage unit 13 history storage unit 20 exchange 31 telephone 311 display unit 312 numeric keypad 313 execute button 314 upper screen button 315 up move button 316 down move button 41 copy table 42 copy name 45 Section table 46 Section name 50 Telephone number table 51 Department code 52 Section code 53 Person code 54 Person name 55 Telephone number 60 History table 61 Telephone number 62 History data

Claims (4)

[Claims] 1. An electronic telephone directory having a telephone having a display unit and a history table storing past call destinations of the telephone, and displaying information based on the contents of the history table on the display unit of the telephone. An electronic telephone directory system including a management device. 2. The electronic telephone directory management apparatus, a history storage unit that stores the history table, a department table in which the department name is set, a department table in which the department name is set, the name of the person in charge, and the telephone. A telephone book data storage unit that stores a telephone number table in which numbers are set, and a history storage unit, a control unit connected to the telephone book data storage unit and the telephone, the history table, 2. A department code for identifying a department and department of a past call destination is stored.
Electronic phone book system described. 3. The control unit reads out a name of a section and a section name corresponding to the section code stored in the history table from the telephone directory data storage unit, and displays the name on the display unit of the telephone. The electronic telephone directory system according to claim 2, wherein: 4. The telephone is provided with an input unit for selecting one of the call destinations displayed on the display unit, and the control unit selects the telephone from the telephone directory data storage unit. 4. The electronic telephone directory system according to claim 3, wherein the telephone number of the called party is searched and the telephone is connected to this telephone number.