JPH0556164A - Re-dial system for electronic exchange - Google Patents

Abstract

PURPOSE:To select a calling destination and to easily make a recall. CONSTITUTION:When there is the call from a telephone set 1, a central processing unit 5 receives the dial number of the calling destination, controls a switch 4 and executes a connection processing. When the telephone set 1 is restored, the central processing unit 5 stores the dial number in a main storage device 6. Whenever there is the call from the telephone set 1, the central processing unit 5 sequentially stores the dial number in the main storage device 6. When a prescribed key is depressed in the telephone set 1, the central processing unit 5 reads the dial number from the main storage device 6, displays it in the display part of the telephone set 1 with a numeral showing how many numbered dial number of the calling destination it is. Whenever the prescribed key is depressed, the central processing unit 5 reads the dial number and sequentially displays it on the display part. When the dial number designated by the numeral shown by a prescribed operation in the telephone set 1, the central processing unit 5 executes the connection processing by the dial number.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a redial system for an electronic exchange.

[0002]

2. Description of the Related Art Conventionally, in the case of a telephone having a redial function, when the last call destination is called again, the last dialed number is automatically set by, for example, pressing the redial button. The call can be recalled without any trouble.

[0003]

However, it is only to the last callee that the telephone can be called again by pressing the redial button on such a telephone, and the callees before that can be called again. When calling, you must dial all the dialed numbers as usual. Further, in the case of a telephone having no redial function, it is necessary to dial all dialed numbers to any call destination.

An object of the present invention is to remedy such drawbacks and to re-establish an electronic exchange so that a call can be made by a simple operation when a call is made again to a party who has made a call in the past. It is to provide a dial system.

[0005]

According to the present invention, in a redial system of an electronic exchange that accommodates a telephone having a display unit, a storage means for storing a dial number and a dial number dialed by the telephone are stored. A dial number storage means for detecting and storing in the storage means, and a dial number read out from the storage means and sent to the telephone and displayed on the display unit of the telephone together with information for identifying each dial number. A display means and a connection processing means for performing a connection processing to the partner of the dial number when the dial number is designated by a predetermined operation based on the identification information on the telephone are provided.

[0006]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 shows an example of an electronic exchange based on the redial system of the present invention. Reference numeral 4 is a switch for connecting telephones to each other, or a telephone and a station line, 5 is a central processing unit for controlling the switch 4, and 6 is a main storage unit connected to the central processing unit 5.

A telephone 1 is connected to the switch 4, and on its operation surface, as shown in FIG. 2, a display section 2 for displaying a dial number and a button 3 for redialing are shown.
Is provided. On the other hand, as shown in FIG. 3, the main storage device 6 has a predetermined number of storage areas 61 to 6n for storing dial numbers for each telephone.

Next, the operation will be described. When the dialed number is dialed by the telephone 1, the central processing unit 5 receives the dialed number and controls the switch 4 to perform connection processing for connecting the telephone 1 and the partner of the received dialed number.

When the telephone 1 is connected to the call destination, the call is thereafter terminated, and the telephone 1 is restored, the central processing unit 5 detects it and uses the dial number of the call destination that has performed the connection processing as the main. The data is stored in the storage area 61 of the storage device 6. After that, when another call is made from the telephone 1 to the other party, the central processing unit 5 similarly performs the connection processing, and when the call ends and the restoration of the telephone 1 is detected, the dial stored in the storage area 61 is firstly stored. The number is moved to the storage area 62, and the current dial number is stored in the storage area 61. In this way
Each time a call is made from the telephone 1, the central processing unit 5 moves the already recorded dial numbers one by one to the recording area of the large code and stores the new dial number in the storage area 61. Record the history of dialed numbers.
When the number of stored dial numbers reaches a predetermined number, the oldest dial number, that is, the dial number stored in the storage area 6n is discarded when the next dial number is stored. ..

Thereafter, when the user of the telephone 1 makes a call again to the other party who has made a call in the past, when the button 3 is pressed, the central processing unit 5 detects this and the storage area 61
The dial number of the last call destination is read from. And
The read dial number is stored in the first storage area, and the read dial number is sent to the telephone 1 together with the numeral 1 indicating that it is the dial number of the last call destination, and is displayed on the display unit 2 of the telephone 1. Display it. As a result, the display unit 2 displays numbers and dial numbers such as "1: 03-12-3456".

When the button 3 is pressed again here, the central processing unit 5 detects it and this time reads the dial number from the next storage area 62, which is the dial number of the second-to-last call destination. The read dial number is displayed on the display unit 2 together with the numeral 2 indicating that. As a result, the display unit 2 displays numbers and dial numbers such as "2: 06-12-3456". Central processing unit 5
Each time the button 3 is pressed, the dial number is stored in the storage area 6
The data is sequentially read from 1 to 6n and sent to the telephone 1 for display. When the dial numbers in the storage area 6n are displayed, the dial numbers in the storage area 61 are returned to and displayed next.

When the user of the telephone set 1 sees this display and makes a call with the third dial number, for example,
Press button 3 and the dial button with the number 3. Upon detecting this operation, the central processing unit 5 reads the dial number from the storage area 63 in which the third dial number is stored, and performs the connection process for the partner of the dial number.

[0013]

As described above, the redial system of the electronic exchange according to the present invention is a redial system of an electronic exchange accommodating a telephone having a display section and a storage means for storing a plurality of dial numbers. When a dial number is dialed on the telephone, the dial number is detected and stored in the storage means, and when a predetermined operation is performed on the telephone, the dial number is read from the storage means and stored in the telephone. Dial number display means for sending and displaying on the display unit of the telephone together with information for identifying each dial number, and when the dial number is specified by a predetermined operation on the telephone based on the identification information A connection processing means for performing connection processing is provided.

Therefore, in the electronic exchange based on the redial system of the present invention, a plurality of dial numbers of call destinations in the past are displayed on the telephone, and the user specifies the dial numbers based on the identification information displayed at the same time. By doing so, it is possible to easily make a call using the dialed number. Therefore, the trouble of redialing can be saved, and the mistake of dial operation can be eliminated.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of an electronic exchange based on a redial system of the present invention.

FIG. 2 is a view showing an operation surface of a telephone housed in the electronic exchange of FIG.

FIG. 3 is a diagram showing stored contents of a main storage device which constitutes the electronic exchange of FIG.

[Explanation of symbols]

 1 Telephone 2 Display Part 3 Button 4 Switch 5 Central Processing Unit 6 Main Storage Device 61-6n Storage Area

Claims (3)

[Claims] 1. A redial system of an electronic exchange accommodating a telephone having a display unit, storage means for storing a dial number, and a dial number dialed by the telephone is detected and stored in the storage means. Dial number storage means, a dial number display means for reading the dial number from the storage means, sending the dial number to the telephone, and displaying the dial number on the display unit of the telephone together with information for identifying each dial number; A redial system for an electronic exchange, comprising: a connection processing means for performing a connection process to a partner of the dial number when the dial number is designated by a predetermined operation based on the identification information. 2. The redial system for an electronic exchange according to claim 1, wherein the identification information is a numeral. 3. The redial system for a telephone exchange according to claim 1, wherein said dial number display means and said connection processing means are constituted by a central processing unit.