JPH0541735A - Communication equipment - Google Patents

Abstract

PURPOSE:To simplify the operation for recommunication from a terminating subscriber to an originating subscriber. CONSTITUTION:When a call comes to a number storage means 8, the originating subscriber number is successively stored independently of the presence or the absence of response. When the terminating subscriber performs communication again, stored originating subscriber numbers are read out by a number read means 9 in order from the latest in accordance with the operation of a function key and are displayed on a display means 10. When the originating subscriber number as recommunication object is displayed, the displayed destination of communication is automatically called by off-hooking.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device such as a digital telephone, a key telephone device, a facsimile device or the like, which is used by connecting to an ISDN line, and more particularly to simplification of an operation for re-communication from a called side to a called side. Is.

[0002]

2. Description of the Related Art ISDN has a function of informing a called party of a calling party number. By using this function, by storing and displaying the caller number transmitted from the line network when there is no answer to the incoming call,
For example, Japanese Unexamined Patent Publication No. 2-56153 discloses a telephone capable of confirming the caller's number and reading the caller's number to automatically make a call.

[0003]

In the above-mentioned telephone, the caller ID is stored when an incoming call arrives while the user is away.
Although the caller ID can be automatically called later, the caller ID cannot be stored when the call is answered. When I tried to communicate again, I had to look up the caller's phone number and dial again. For this reason, the operation when the callee communicates again with the caller after replying cannot be simplified.

The present invention has been made to solve the above drawbacks, and an object of the present invention is to obtain a communication device which can always make a call by a simple operation when the callee communicates with the caller again. .

[0005]

SUMMARY OF THE INVENTION A communication device according to the present invention is a communication device used by connecting to an ISDN line, and a number storage means for sequentially storing a caller number when an incoming call arrives and a function key. Number reading means for reading the caller numbers stored in the number storage means from the newest order each time the user operates, display means for displaying the caller number read by the number reading means, and the caller displayed on the display means. And a calling means for sending the number off-hook.

[0006]

According to the present invention, when an incoming call arrives in the number storage means, the sender's number is sequentially stored regardless of whether or not there is a response. When re-communication is performed, the stored caller number is sequentially read from the new order by the number reading means by the operation of the function key, and when the caller number to be re-communicated is displayed, the caller number is displayed by the calling means. Automatically call the existing caller ID.

[0007]

1 is a block diagram showing an embodiment of the present invention. As shown in the figure, the telephone has a CPU 1, an ISDN interface 2 and a codec 3 for managing the entire apparatus.
And a handset 4. The ISDN interface 2 receives the signal from the ISDN line, sends the D channel signal to the CPU 1 and the B channel signal to the codec 3
Send to. In addition, the D channel signal from the CPU 1
I receive the B channel signal from the deck 3 and multiplex it to I
It is converted into a signal suitable for the SDN line and sent to the ISDN line. Codec 3 is ISDN interface 2
The B channel signal (digital signal) sent from the device is converted into an analog signal and sent to the handset 4, and the analog signal from the handset 4 is converted into a digital signal and IS.
Send to DN interface 2.

The CPU 1 has a dial key 5 for inputting a destination number, a function key 6, a hook switch 7, a number storing means 8, a number reading means 9, a displaying means 10 and a transmitting means 11.
Are connected. The function key 6 has an incoming call redial button 6a and the like and is used when a special function is used. The hook switch 7 is a switch that detects whether or not the handset 4 is placed on the telephone. Number storage means 8
Stores a plurality of caller numbers when there is an incoming call on the telephone. The number reading means 9 reads the caller's number stored in the number storage means 8 from the newest order each time the function key 6 is operated. The display means 10 displays the read caller number. When the off-hook signal is output from the hook switch 7, the calling means 11 automatically calls the caller number displayed on the display means 10.

First, the operation of registering the caller's number when an incoming call arrives at the telephone having the above-mentioned structure will be described with reference to the flowchart of FIG.

An incoming call from the ISDN line is notified by, for example, a call setting message 31 shown in FIG. At this time, if the calling party has set the calling party number notification to be possible, information such as the calling party number is contained in the calling party number information element in the call setting message 31. Therefore, the CPU 1 sends the ISDN from the calling terminal.
ISDN for call setup message 31 sent via the line
When the incoming call and the incoming call are notified from the interface 2 (step S1), it is checked whether or not the calling number is included in the calling number information in the call setting message 31 (step S2). When the caller number is notified in the call setting message 31, the CPU 1 checks whether or not the same caller number as the caller number has been previously registered in the number storage means 8 (step S3). When the incoming caller number is registered in the number storage means 8, the caller number is moved to the newest area of the number storage means 8 and other registered caller numbers are sequentially shifted (step S).
4).

When the incoming caller number is not registered in the number storage means 8, the oldest caller number registered in the number storage means 8 is deleted (step S
5) The received caller number is stored and registered in the newest area of the number storage means 8 (step S6). After that, the CPU 1 executes I through the ISDN interface 2.
A calling message is sent to the SDN line, an incoming call is answered, and the subsequent processing starts (step S7). Since the caller number is stored when the call setting message is received as described above, the caller number can be registered in the number storage means 8 regardless of whether or not the called side responds. If the caller ID is not notified in the call setting message 31,
The CPU 1 immediately sends out a calling message and starts the subsequent processing (step S7).

Next, the operation for making a call from a telephone set in which a plurality of caller numbers are registered will be described with reference to the flowchart of FIG.

When making a call, the incoming call redial button 6a provided on the function key 6 is pushed while the handset 4 is in the on-hook state (step S11). The CPU 1 operates the number reading means 9 by pressing down the incoming call redial button 6a. The number reading means 9 reads the newest caller number registered in the number storage means 8 and displays it on the display means 10 (step S12). The correspondent checks the displayed caller number, and when making a call to the caller number, picks up the handset 4 and puts it in the off-hook state (steps S13, S14). The off-hook state is set, and the off-hook signal is output from the hook switch 7 to the CPU 1.
Then, the CPU 1 activates the transmitting means 11. Therefore, the calling means 11 sends out a call setting message which is read by the number reading means 9 and is displayed on the display means 10 with the calling party number as the destination number (step S1).
5). Then, the subsequent processing is started (step S16).

If the caller does not call the newest caller number displayed on the display means 10 (step S13),
The incoming call redial button 6a is pressed down again within a predetermined time (steps S17, S18).
By depressing the incoming call redial button 6a again, the number reading means 9 judges whether the caller number displayed on the display means 10 is the oldest caller number registered in the number storage means 8 (step S19). ), If the displayed caller number is not the oldest caller number, the caller number registered next to the displayed caller number is read out and displayed on the display means 10 (step S20). . When making a call to this caller ID, the call is placed in the off-hook state (steps S14 to S).
16). When the incoming call redial button 6a is pressed down again and the displayed caller number is the oldest caller number, the newest caller number is read out and displayed on the display means 10 (step S21). In this way, by sequentially depressing the incoming call redial button 6a, it is possible to read out and display the caller numbers registered in the number storage means 8 in ascending order. Then, while confirming the displayed caller ID, it is possible to automatically make a call to a necessary destination.

In the above embodiment, the case where the caller number is read out and displayed by depressing the incoming call redial button 6a has been described, but when the incoming call redial button 6a is not present, the dial key 5 and the function key 6 are combined. It is also possible to read out the caller number.

In the above embodiment, the case where only the caller number is displayed on the display means 10 has been described. However, the number storage means 8 also stores the caller number and information as to whether or not the call was made, and the incoming call redial button 6a. When is pressed, by displaying information about whether or not a call was made with the caller ID, it is possible to identify whether the caller is the other party or not.

In the case of a telephone having a clock function, the date and time of arrival together with the incoming caller number are stored in the number storage means 8 and the date and time of arrival can be displayed by pressing the incoming redial button 6a. The incoming call information can be accurately transmitted, and the convenience can be improved.

Although the above embodiment has been described with respect to the case of a single telephone, it can be applied to a facsimile apparatus, a key telephone apparatus and the like as long as the equipment is connected to the ISDN line.

[0019]

As described above, according to the present invention, when the incoming call is stored in the number storage means regardless of whether or not there is an incoming call, the incoming caller numbers are stored in the new order. You can register and easily search the incoming caller ID.

Further, the stored caller numbers are sequentially read from the newest order by the operation of the function keys, and when the caller number that needs to be re-communication is displayed, the caller is displayed off-hook. Since the number is automatically called, it is possible to call again to the calling side with a simple operation.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing an operation of registering a sender number.

FIG. 3 is an explanatory diagram showing a structure of a call setting message.

FIG. 4 is a flowchart showing an operation when making a call with a registered caller number.

[Explanation of symbols]

 1 CPU 2 ISDN interface 6 function key 6a incoming call redial button 7 hook switch 8 number storage means 9 number reading means 10 display means 11 calling means

Claims (1)

[Claims] 1. In a communication device used by connecting to an ISDN line, a number storage means for sequentially storing a caller number when an incoming call arrives and a number storage means for each operation of a function key are stored. And a display means for displaying the caller number read by the number reading means, and a sending means for sending the caller number displayed on the display means off-hook. A communication device characterized by the above.