JPH07123138A - Incoming call display method for key telephone set - Google Patents

Abstract

PURPOSE:To easily discriminate the incoming call to be most preferentielly processed by a user by selecting one incoming call to be most preferentially processed to display it on an incoming display device at the time of the simultaneous occurrence of plural incoming calls. CONSTITUTION:When a call comes to a key telephone set 10 from trunk lines 1 to (n) or extensions (other key telephone sets 20 and 30), a CPU 13 sets each part to the terminating state and sounds a ringer tone generator 18. It is checked whether this incoming call is most preferentially displayed or not; and if it is to be most preferentially displayed, it is checked whether the preceding incoming call is displayed on an incoming display device 16 at present or not. If it is displayed at present, this display is erased, and the current incoming call is displayed. Priority levels are determined, for example, in the arrival order with respect to the incoming call to be most preferentially displayed. Smaller numbers of trunk lines 1 to (n) are preferentially selected, and incoming calls from trunk lines 1 to (n) are preferred to those from extensions, and incoming calls from trunk lines 1 to (n) or those from extensions are selected in the arrival order.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incoming call display method for a key telephone.

[0002]

2. Description of the Related Art FIG. 3 shows a configuration example of a key telephone device. As shown in the figure, the key telephone device is a plurality of key telephones 1.
0, 20, 30 and the main unit 40, the station line 1,
2. ． ． n is connected to the main device 40, and is connected from the main device 40 to a plurality of (three in the figure) button telephones 10, 20, 30.

The key telephone 10 includes a handset 11, a communication circuit 12, a CPU (Central Processing Unit) 13 for controlling the whole, a memory 14 for storing programs and data,
LED indicator 15 for displaying messages and numbers, station lines 1, 2. ． ． n or extension (other button telephones 20, 30)
It comprises an incoming call indicator 16 for displaying an incoming call from the user, a keyboard 17 provided with a dial number and a control key, a ringing tone generator 18, and the like. Fig. 4 shows the appearance of the button telephone. As shown in FIG. 4, in many cases, a plurality of incoming call indicators 16 and selection keys 17-1 of the key telephone 10 are provided in accordance with the lines of the office lines 1 to n.

When an incoming call is received on any of the central office lines 1 to n,
The main device 40 sends a signal to each key telephone 10 to 30,
The CPU 13 of each of the key telephones 10 to 30 turns on the incoming call indicator 16 corresponding to the incoming call line, and causes the ringing tone generator 18 to generate a ringing tone unless the key telephone is in use. When the user pushes the corresponding selection key 17-1 (see FIG. 4), goes off-hook, and picks up the handset 11, the main device 40 is selected by the call circuit 12 of the key telephone 10 and the selection key 17-1. Connect the station line to make a call.

[0005]

However, in the above-mentioned conventional key telephone 10, when the incoming call is simultaneously received on a plurality of office lines 1 to n or the incoming calls from the extension are simultaneously generated, the incoming call indicator 16 is provided. There is a problem in that it is impossible to determine which incoming call should be prioritized because a plurality of lamps that have been turned on light up at the same time.

The present invention has been made in view of the above points, and an object of the present invention is to provide an incoming call display method for a key telephone which eliminates the above problems and allows a user to easily recognize an incoming call to be processed with the highest priority. To do.

[0007]

In order to solve the above problems, the invention of claim 1 of the present invention is, as shown in FIG. 3, a main unit 40 for controlling station lines 1 to n and extension lines of a plurality of lines, and an incoming call. The button 16 is composed of a button telephone 10, 20, 30 having a display 16, a CPU 13 for processing incoming calls, and a memory 14, and displaying incoming calls from the central office lines 1 to n and incoming calls on the incoming call indicator 16 on the incoming call display 16. In the incoming call display method of the telephone set 10, when a plurality of incoming calls from the central office lines 1 to n and incoming calls from extension lines (other key telephone sets 20 and 30) occur simultaneously, the flow charts shown in FIGS. Accordingly, the CPU 13 is provided with means for selecting one incoming call to be processed with the highest priority and displaying it on the display 16.

The invention of claim 2 is characterized in that, as a method of selecting one incoming call to be processed with the highest priority, the incoming call is selected on a first-come-first-served basis.

Further, the invention of claim 3 is characterized in that, as a method of selecting one incoming call to be processed with the highest priority, a station line with a smaller number is selected from station lines 1 to n of the plurality of lines. And

Further, in the invention of claim 4, as a method of selecting one incoming call to be processed with the highest priority, incoming calls from the central office lines 1 to n are prioritized over incoming calls from extension lines (other key telephones), The station lines 1 to n and the extension lines are selected in the order of arrival.

According to the invention of claim 5, the station lines 1 to n are I.
In the case of the SDN digital line network, as a method of selecting one of the incoming calls to be processed with the highest priority, the destination numbers to be processed preferentially are registered in advance in the memory 14, and the numbers matching the numbers are registered in advance. The feature is that priority is given to selection of incoming calls.

Further, in the invention of claim 6, as a method of selecting one incoming call to be processed with the highest priority, when a private line is used for the station lines 1 to n, it is preferentially selected. Characterize.

[0013]

In the present invention, of the plurality of incoming calls as described above,
Select one incoming call to be processed with the highest priority, and select the incoming call display 16
By providing the means for displaying the incoming call, the incoming call indicator 16 is always easy to understand because only one incoming call to be processed with the highest priority is displayed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. As shown in FIG. 3, the key telephone 10 displays a handset 11, a communication circuit 12, a CPU (Central Processing Unit) 13 for controlling the whole, a memory 14 for storing programs and data, a message and a number. LED display 1
5, office lines 1-n and extensions (other key telephones 20, 30)
It comprises an incoming call indicator 16 for displaying an incoming call from the user, a keyboard 17 provided with a dial number and a control key, a ringing tone generator 18, and the like.

FIG. 1 is a flow chart showing an incoming call display method for a key telephone according to the present invention. A program for executing this method is stored in the memory 14 of the key telephone 10 and
It is executed by the PU 13. It will be described with reference to FIG.

When there is an incoming call to the key telephone set 10 from the central office lines 1 to n or an extension (other key telephone sets 20 and 30), the CPU 13 sets each part to the incoming state and causes the ringing tone generator 18 to ring ( Step ST11). Check if the current incoming call is the highest priority incoming call (step S
(T12, details will be described later), and if it is not the highest priority incoming call, the process ends. If it is the highest priority incoming call, it is checked whether the first-arriving incoming call is currently being displayed (step ST13). If it is being displayed, the display is erased (step ST14), the current incoming call is displayed (step ST15), and the process ends. If it is not being displayed (step ST13), the latest incoming call is displayed (step ST15), and the process ends.

FIG. 2 is a flow chart in which the user performs the incoming call display processing after the end of the call. After the call is ended, a call termination process such as on-hook is performed (step ST21), and the previous display is erased (step ST22). If there is no other unprocessed incoming call (step ST23), the process ends, and if there is an unprocessed incoming call, the incoming call to be displayed with the highest priority is selected (details will be described later) and displayed on the incoming call display 16 (step ST24). After that, it is repeatedly processed until there are no unprocessed incoming calls.

Here, a method for checking whether the incoming call to be displayed with the highest priority is selected from a large number of incoming calls in step ST12 of FIG. 1, that is, a method for selecting an incoming call to be displayed with the highest priority (step ST
24) will be described below. (1) Priority is decided on a first-come-first-served basis. That is, the oldest incoming call is selected. (2) Station lines 1 to n
Select the younger number first. (3) The incoming calls from the station lines 1 to n are given priority over the incoming calls from the extension lines, and the station lines 1 to n and the extension lines (other key telephones 10 to 30) are selected on a first-come-first-served basis. (4) When the office lines 1 to n are ISDN (digital line networks), the destination numbers to be preferentially processed are registered in advance in the memory 14 in advance, and incoming calls that match the numbers are preferentially selected. Other incoming calls are on a first-come, first-served basis. (5) If a private line is used for the central office lines 1 to n, it is prioritized. Although there are various types as described above, the method most suitable for the application of the key telephone is used.

[0019]

As described in detail above, according to the present invention, the following excellent effects are expected. In a key telephone having an incoming call indicator, a means for selecting one incoming call to be processed with the highest priority from among a plurality of incoming calls and displaying it on the display is provided so that the display on the incoming call display is always processed with the highest priority. Only one incoming call is displayed, making it easier to understand and improve work efficiency.

[Brief description of drawings]

FIG. 1 is a flowchart showing an incoming call display method for a key telephone according to the present invention.

FIG. 2 is a flowchart for performing an incoming call display process after ending a call.

FIG. 3 is a block diagram showing a configuration example of a key telephone device.

FIG. 4 is an external view of a button telephone.

[Explanation of symbols]

 1 station line 2 station line n station line 10 button telephone 11 handset 12 call circuit 13 CPU (central processing unit) 14 memory 15 LED indicator 16 incoming indicator 17 keyboard 18 ringing tone generator 20 button Telephone 30 Button telephone 40 Main device

Claims (6)

[Claims] 1. A key telephone which is connected to a main device for controlling office lines and extensions of a plurality of lines and has an incoming call display and an incoming call processing means, wherein the incoming call from the central line and the incoming call from the extension line are received. In the incoming call display method of the key telephone displayed on the display unit, when a plurality of incoming calls from the central office line and incoming calls from the extension occur simultaneously, the incoming call processing means selects one incoming call to be processed with the highest priority and selects the incoming call. An incoming call display method for a button telephone, which is characterized by displaying on a display unit. 2. The incoming call display method for a key telephone according to claim 1, wherein the incoming call to be processed with the highest priority is selected on a first-come-first-served basis. 3. The key telephone set according to claim 1, wherein, as a method of selecting one of the incoming calls to be processed with the highest priority, an office line with a smaller number is selected from the office lines of the plurality of lines. Incoming call display method. 4. As a method of selecting one incoming call to be processed with the highest priority, an incoming call from a central line is prioritized over an incoming call from an internal line, and the incoming call from each of the central line and the internal line is selected on a first-come-first-served basis. An incoming call display method for a key telephone according to claim 1. 5. When the office line is an ISDN digital line network, as a method of selecting one of the incoming calls to be processed with the highest priority, the destination numbers to be processed preferentially are registered in advance in the incoming call processing means. 2. The incoming call display method for a key telephone according to claim 1, wherein the incoming call of a number matching the number is selected with priority. 6. A method for selecting one incoming call to be processed with the highest priority, wherein when a private line is used as an office line, the private line is preferentially selected.
Incoming call display method for button telephones described in.