JPS63187898A - Key telephone system - Google Patents

Abstract

PURPOSE:To allow each terminal set to display a holding trunk line clearly by detecting a holding trunk line number in holding a trunk line, sending the number to a key telephone set whose holding button is depressed and displaying a holding trunk line number onto the display device of the said key telephone set. CONSTITUTION:A control circuit 16 activates a cross point 11 to connect an acquired trunk line to a holding circuit 14 thereby holding the trunk line. Then the control circuit 16 outputs a display data displaying which trunk line is in holding to said telephone set via an interface of the relevant telephone set. When a holding button is depressed, said trunk line is connected to the holding circuit 14 and the holding trunk line number is stored in a memory. Then the holding data is read from the memory and outputted to the relevant key telephone set. The key telephone set displays the trunk number held in the display device and completes the processing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a key telephone device, and particularly to a holding station line number display configuration.

(Prior art) Conventionally, this type of device, when a terminal (key telephone) holds a central office line that it has captured, lights up the LED (light emitting element) paired with the central office line button provided on the terminal at a constant value. A hold display was made by flashing periodically to indicate that 14m was on hold. In such conventional key telephone devices, the holding station line is displayed only by an LED display, so that the user has to check the holding station line. In addition, because the blinking cycle of the LED display on the station line held on hold by your own terminal is similar to that on the LED display on the station line held on hold by another terminal, it is also possible to It was difficult to distinguish between the station line held by the terminal, and when trying to capture station line 1, which was held by the own terminal,
There was a drawback that it could accidentally capture a station line that was held by another terminal.

(Problems to be Solved by the Invention) As mentioned above, in the conventional button telephone device, the means for displaying that the central office line is on hold is provided by an LED provided on each terminal.
Since only a blinking display is displayed, it is difficult to check the holding station line, which can lead to malfunctions.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a key telephone device that can clearly display the holding station line at each terminal.

[Configuration of the Invention (Means for Solving Problems) The present invention includes a plurality of key telephones and a main device to which these key telephones are connected, and has a function of holding a central office line captured by the main device. , in a button telephone device having a function of displaying data sent from the main device on the display of each button telephone, detecting the holding station line number of the station line that is held when the captured station line is placed on hold. The present invention is configured to include a detection means for detecting the office line number, and a data transmission means for transmitting the detected office line number as display data to the corresponding key telephone.

(Function) In the key telephone device of the present invention, when the central office line is put on hold, the detection means detects the central office line number and passes it to the data sending means. The data sending means sends the given hold 8 line number to the corresponding button telephone as display data. As a result, the holding station line number is displayed on the corresponding key telephone.

(Example) An example of the present invention will be described below with reference to the drawings. 1st
The figure is a block diagram showing one embodiment of the button telephone device of the present invention. A plurality of key telephones 2-1 to 2-n, which are terminals, are connected to a cross point 11 in the main device 1 via key telephone interfaces 12-1 to 12-0. Further, the cross point 11 connects the office lines 3-1 to 3-m via office line interfaces 13-1 to 13-m. Further, the cross point 11 connects a hold circuit 14. Inside main device 1.

A control circuit 16 for controlling the entire button telephone device, a cross point 11, and button telephone interfaces 12-1 to 12-n are connected to the bus 15.

Next, the operation of this embodiment will be explained. Normally, the button telephone device performs the operations shown in the flowchart shown in FIG. When the N source is turned on to the button telephone device in step 201, the cross point 1 is turned on in step 202.
1.Each button telephone 2-1.2-〇, central office line 3-1~3-
Initial processing is performed to initialize the state of m and the control circuit 16 and the like. Next, in step 203, an input/output process is performed in which input signals are taken in by pressing the hold button, central office line button, and extension button of each button telephone, and display data is output to each button telephone. Note that the data fetched in step 203 is stored in a memory (not shown) of the control circuit 16. Furthermore, when the term "memory" is used hereinafter, it refers to the memory within the control circuit 16. Next, the control circuit 16 performs telephone processing in step 204, mainly storing data to be output to the key telephones 2-1 to 2-n in the memory, based on the input data, and in step 205, calls are made, received, and put on hold. After performing station line processing such as time, the process returns to step 203.

Next, the holding operation when the central office line is held will be described in detail. First, when the central office line button 22-9 of the caller's button telephone (referring to any of the button telephones 2-1 to 2-n in FIG. 1) as shown in FIG. Signals are input to control circuit 16 via the appropriate button telephone interface shown in FIG. As a result, control circuit 1
B operates the crosspoint 11, connects the relevant office line and the telephone set via the crosspoint 11, and captures the office line. At the same time, the control circuit 16 stores the talk time of the telephone in memory and outputs it to the telephone via the corresponding button telephone interface. As a result, the display 20 of the telephone shown in FIG.
The call time is displayed as shown in FIG. 4(A). Here, the hold button 22-10 shown in FIG.
, the control circuit 16 detects the press of the hold button 22-10 via the corresponding button telephone interface.

As a result, the control circuit 16 operates the cross point 11 to connect the captured office line to the holding circuit 14, and holds the office line. At the same time, the control circuit 16 outputs display data indicating which office line is on hold to the telephone via the corresponding telephone interface. Therefore, as shown in FIG. 4(B), the telephone set displays the 8-line number on hold on the display 20, and the LED 23-9 blinks to display which station line is on hold. Ru.

FIG. 5 is a diagram showing an operation flowchart of the control circuit 16 that performs the above-mentioned station line holding operation. Step 501 waits for the detection of the central office line button being pressed, and if the central office line button is pressed, the calling button telephone is connected to the relevant central office line in step 502, and then the hold button is pressed in step 503. If the hold button is pressed, the process goes to step 504. At step 504, the corresponding office line is connected to the reservation circuit 14, and at the next step 5Q5, the suspended office line number (reservation data) is stored in the memory. Next, in step 506, the suspended data is read from the memory and outputted to the corresponding key telephone, thereby displaying the suspended office line number on the display of this key telephone, and the process is terminated. Note that the LED corresponding to the suspended station line also blinks as before, but this will not be discussed below.

Next, a description will be given of the hold display operation when one key telephone set shown in FIG. 1 is conducting a two-station line conference. First, when a two-line conference is being held, the display 20 shown in FIG. The station line number is displayed. Here, when the hold button 22-10 shown in FIG. 3 of the button telephone is pressed, the control circuit 16 detects this. As a result, the control circuit 16 operates the cross point 11 to connect the corresponding two station lines to the holding circuit 14, stores the holding station line number in the memory, reads it out, and outputs it to the key telephone. The number of the held two-station line is displayed on the display 20 of the key telephone, as shown in FIG. 6CB). After that, when the station line with station line number 1 is captured again, the station line number 2 is displayed on the display 20 as shown in FIG. 6(C), and station line number 1 is in use. The display changes to .

Next, a description will be given of the hold display operation when a plurality of central office lines are placed on hold using one key telephone.

When a call is in progress, the call time is displayed on the display 20 of the corresponding key telephone as shown in FIG. 7(A).

Next, when one station line is put on hold, the control circuit 16 puts this line on hold, and the display 20 displays the number of the held line as shown in FIG. 7(8). Thereafter, when the key telephone acquires a vacant office line other than the held office line, the held office line number and the captured office line number are determined by the data sent from the control circuit 16 as shown in FIG. 7(C). is displayed on the display 20. If the hold button 22-10 of the button telephone set shown in FIG.
6, only the data of the last station line put on hold is sent to the telephone, so only the number of the last station line put on hold is displayed on the display 20 of the telephone, as shown in FIG. 7(D). be done.

Next, the scrolling display operation of the holding station line number on the display 20 will be explained. First, in order to perform this operation, an area of bytes is prepared in the memory (RAM, etc.) in the control circuit 16, as shown in FIG. do. For example, when the key telephone 2-1 holds the central office line numbers 1, 2, and 3 in this order, the display 20 of the button telephone displays a hold display for the central office line number 3, as shown in Figure 9. Ru. In the area of the memory corresponding to this, as shown in FIG.
is stored. Moreover, at this time, the numerical value at the left end of the area is read out by the control circuit 16, and the holding station line number 3 is displayed on the display 20 of the telephone as shown in FIG. 9(A). Next, in order to scroll the pending display, the scroll key 22-1 shown in FIG.
When the button is pressed, the control circuit 16 detecting this presses the
) After the stored contents are rotated to the left one by one, the numerical value at the left end of the area is read out and the corresponding holding station line number is sent to the key telephone. As a result, as shown in FIG. 9(B), the display 20 displays the holding station line number 2.
is displayed. Similarly, each time the scroll key 22-1 is pressed, the holding station line number is scrolled and displayed as 1.3 as shown in FIGS. 9(C) and (D).

With this scroll function, even if multiple station lines are on hold, you can check all the station line numbers that have been placed on hold by sequentially displaying them on the display 20 of the key telephone.
C) corresponds to FIG. 9(C).

According to this embodiment, when the central office line is put on hold, the control circuit 16
is sent to the held station line number@corresponding key telephone, and the station line number of the held station line is displayed on the display 20 of the corresponding button telephone, so the user can easily check the held station line. Moreover, it can be performed reliably and erroneous operations can be eliminated.

[Effects of the Invention] As described above, according to the button telephone device of the present invention, when a station line is placed on hold, the station line number on hold is detected and sent to the button telephone on which the hold button is pressed. Therefore, by displaying the holding line number on the display of the key telephone, it is possible to clearly display the holding line on each terminal.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the button telephone device of the present invention, FIG. 2 is a flowchart showing the overall operation of the device shown in FIG. 1, and FIG. 4 is a diagram showing an example of the display sequence of the display shown in FIG. 3, FIG. 5 is a flowchart showing the station line hold operation of the device shown in FIG. 1, and FIG. The figure is the third
Figure 7 is a diagram showing an example of the display sequence for a two-station line conference on the display shown in Figure 3. Figure 7 is a diagram showing an example of the display sequence for multiple station lines on the display shown in Figure 3. 1 is a diagram showing an example of the memory area in the control circuit shown in FIG. 9 is a diagram showing an example of a change in the contents of the area of the memory in the control circuit shown in FIG. 8 due to scrolling. FIG. 1... Main device 2-1 to 2-n... Button N call 3-1 to 3-n... Office line 11... Cross point 12-1 to 12-n... Button telephone Interfaces 13-1 to 13-m... Office line interface 14...
- Storage circuit 16... Control circuit 20... Display 21... Numeric keypad 22-1 to 22-
10... Buttons (keys) 23-1 to 23-10...
LED Agent Patent Attorney Nori Ken Chika Kanshu Sanno - Figure 1 Figure 3 Figure 6 Figure 7 Figure 9

Claims (1)

[Claims] Equipped with multiple key telephones and a main device to which these key telephones are connected, the main device has a function to hold calls on the central office line, and data sent from the main device to the display of each key telephone. The button telephone device has a detection means for detecting the central office line number of the captured station line when a call on the captured station line is put on hold, and a detection means for detecting the central office line number of the captured station line, and the detected central office line number as display data. 1. A button telephone device comprising: data sending means for sending data to a button telephone.