JPS62278893A - Key telephone system - Google Patents

Abstract

PURPOSE:To shorten a waiting time and to attain an emergency communication by constituting a system so that the holding information is issued to a central processing unit from the key telephone system on the held subscriber's side key telephone set by executing a specific operation, and the central processing uinit, after receiving this information, controls the display on a key telephone set with display on the holding subscriber's side key telephone set and issues a message display to the holding subscriber. CONSTITUTION:If the specific button operation on the key telephone set 1b on the held subscriber's side is executed, for instance, a dial button 17a among dial buttons 17 is depressed, such message display instruction information is inputted to the central processing unit 12 through a data bus 3b, a data interface 14, and an I/O interface 13. Accordingly, the unit 12 is caused to operate by such input of the message display instruction information, and outputs the message display information to the key telephone set 1a on the holding subscriber's side thorugh the I/O interface 13, the data interface 14, and a data bus 3a. As a result, the key telephone set 1a on the holding subscriber's side can display a message in a display part 19 by the input of such message display information.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] This invention relates to a button telephone device with a display, and in particular, the main device has a built-in microprocessor and controls a telephone etc. using a stored program system. The present invention relates to a button telephone device with a display.

[Conventional technology]

Conventionally, this type of button telephone device connects two to several dozen central office lines to several to several dozen telephones located within the same subscriber's premises, and several to several dozen telephones located within the same subscriber's premises. The system accommodates several extensions, and each telephone can select and use either the office or the extension.

[Problem that the invention seeks to solve]

In the above-mentioned conventional key telephone device, if one of the key telephones puts the mutual extension call on hold during a mutual extension call, operations such as answering or canceling the held call cannot be performed unless from the key telephone that held the call.

In other words, the key telephone of the person on hold is forced to wait until the key telephone of the holding party operates the held call, so if the party is put on hold for a long time, the call cannot be sent to the key telephone of the holding party without being able to send any message. There was a problem that it had no choice but to be abandoned.

[Means for solving problems]

The button telephone device of this invention has a button telephone with a display,
If one of the key telephones puts the mutual extension call on hold during a mutual extension call, a specific operation is performed on the key telephone of the person being held, and information about the hold is sent to the central processing unit, and the central processing unit Upon receiving the information, the system controls the display on the button telephone with display on the person on hold and issues a message to the person on hold.

[Effect]

This invention allows a warning message to be sent from the person on hold to the person on hold, thereby shortening waiting time and making emergency contact possible.

〔Example〕

FIG. 1 is a block diagram showing an embodiment of a button telephone device according to the present invention. In the same figure, 1&~1n is a button telephone equipped with a display section and an operation section, and 2&~2n are button telephones 11~1n, the details of which are shown in FIG.
1n are respectively connected to voice circuit lines, 3 & ~3n are data buses connected to these button telephones 1 & ~1n, respectively, 4 is a central office line, 5 is a signal sending circuit for sending out a dial pulse signal or a PB double signal, and 6 is a signal sending circuit that sends out a dial pulse signal or a PB double signal. Trunk circuit, 7 is a tone generator, 8 is a switch circuit network, 9 is an audio interface, 10 is a RAM 11 is a ROM, 12 is a central processing unit, 13 is an input/output interface, 14 is a data interface, 15 is the signal sending circuit described above. 5. Trunk circuit 6. Tone generator 7. Switch network8. Audio interface 9, RAM10, ROM11,
Central processing unit 12. This device is composed of an input/output interface 13 and a hitator interface 14.

In addition, in the button telephones 11 to 1n shown in FIG.
16 is a station line selection button, 17 is a dial button, 18 is a hold button, and 19 is a display section using, for example, an LCD.

Next, the operation of the button telephone device having the above configuration will be explained. First, when the key telephone 1a and the key telephone 1b are talking between extensions, for example, when the key telephone 1& presses the hold button 18, this hold information is transferred to the data bus 3a-f.
-Tine interface 14-Person output interface 1
3 to the central processing unit 12. therefore,
Based on the input of this hold information, the central processing unit 12 sends information to the switch circuit network 8 to open the extension audio circuits of the key telephones 1a and 1b, and to close the audio circuit of the tone generator 7 for the key telephone 1b. send. Therefore, this switch network 8 opens the contact between the button electric machine 11 and the extension audio circuit of the button telephone 1b, and closes the contact between the button telephone 1b and the audio circuit of the tone generator 7.

Therefore, the mutual communication between the extension lines between the key telephone 1a and the key telephone 1b is put on hold, and the push button telephone 1 on the holdee's side
A hold tone from the tone generator 7 is sent to b.

Next, when a specific button is pressed on the key telephone 1b of the person on hold, for example, the button 17 & of the dial button 17 is pressed,
This message display command information is data bus 3 heater-cheetah interface 14□ input/output interface 13
The data is input to the central processing unit 12 via the . Therefore, the central processing unit 12 operates upon input of this message display command information, and transmits the message display information to the input/output interface 13-data interface 14□data bus 3.
It is output to the key telephone 1a of the person on hold via &. Therefore, by inputting this message display information, the hold person's button telephone 1& can display a message on the display section 19. Furthermore, even if the person on hold side button telephone 11 is holding the person on hold button telephone 1b and is making a mutual extension call with the button telephone 1n, the call between the button telephone 1b on the person on hold and the button telephone 1n will not be processed. A message display can be sent to the push button telephone 1b of the person on hold without any trouble.

Note that in the above embodiments, an LCD was used as the display section, but the present invention is not limited to this, and it goes without saying that any display function may be provided. It goes without saying that the display does not have to be dedicated to displaying messages from the person on hold. Furthermore, it goes without saying that the message sending operation method may be any method as long as it can be executed from the key telephone of the person on hold.

〔Effect of the invention〕

As explained in detail above, according to the button telephone device according to the present invention, a message display can be sent from the person on hold to the person on hold, so that the person on hold forgets that the mutual extension call is on hold. When you are on hold for a long time,
It can also be used as a notification message, and has the effect of shortening the waiting time for the person on hold, and can be used for emergency contact.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of a button telephone device according to the present invention, and FIG. 2 is a plan view showing details of the button telephone device of FIG. 1. 1a~1n-・e・button telephone, 2a~2n...
Audio circuit lines, 3a to 3n...Data bus, 4...
- Office line, 5... Signal sending circuit, 6... Trunk circuit, 7... Tone generator, 8... Switch circuit network, 9... Audio interface, 1011...
-RAM, 11...ROM, 12...Central processing unit, 13... -I/O interface, 14
・φ...Cheetah interface, 15...-main device, 16...-station line selection button, 17...-dial button, 18φ-10 hold button, 19...-display section.

Claims (1)

[Claims] It has a plurality of button telephones with a display, a switch circuit network that interconnects the audio circuits of the button telephones with a display, and a central processing unit that controls the display of each button telephone with a display; If one of the display button telephones puts the call on hold during a call between extension lines of display button telephones, a specific call from the key telephone of the person on hold is A button telephone device characterized in that a central processing unit controls the display of each display-equipped button telephone by button operation, so that a message display can be sent to the person on hold from the button telephone on the person on hold.