KR960009920B1 - Message displaying method for a keyphone system - Google Patents

Abstract

(1) displaying a busy message on the LCD of the first key phone device if the second key phone device is on the line when an extension number corresponding to the second key phone device is sent to a key phone main device; (2) sending an emergency message function selective information to the key phone main device and the input emergency message to the key phone main device; (3) sending the emergency message received from the first key phone device to the second key phone device; and (4) displaying the emergency message applied by the key phone main device on the LCD of the second key phone system.

Description

How to display emergency messages on digital keys

1 is a block diagram of a general digital key phone.

2 is an operation flowchart for explaining an emergency message display operation according to the present invention.

* Explanation of symbols for main parts of the drawings

100: key phone main device 110: trunk line connection circuit

120: internal connection circuit 130: datacom circuit

140: the call matrix Matrix 150: system control

200A, B: Key Phone Device 210A, B: LCD Display Circuit

220A, B: Datacom circuit 230A, B: Button detection circuit

240A, B: Key Phone Controller 250A, B: Call Circuit

260A, B: Extension circuit

The present invention relates to a message dispensing method for displaying an emergency message on a display device of a caller in use by a callee in a digital keyphone system, which is an electronic switching device having a liquid crystal display, when the callee is using a keyphone. .

In general, a keyphone main device and a keyphone device are connected to a plurality of (M) stations by selectively receiving a plurality of (N) trunk lines from a public telecommunication network, as shown in FIG. The key phone main device 100 and the key phone devices 200A and B connected to the extension connected to the key phone main device 100 are largely configured.

The key phone main apparatus 100 includes a system controller 150 for controlling the overall operation of the key phone system, a data comb circuit 130 for transmitting and receiving data under the control of the system controller 150, and the system controller 150. Call line matrix 140 for switching the call path according to the control of the station, the station connection circuit 120 for matching with the key device 200A, 200B, and the CO line connection circuit 110 for matching with the trunk line It is made with a.

Meanwhile, keyphone devices are connected to each extension line connected to the extension connection circuit 120, and each keyphone device has the same configuration. For example, the key phone device 200A connected to the station 1 includes a key phone control device 240A for controlling the overall operation of the key phone device, and a call circuit 250A for transmitting and receiving a voice signal under the control of the key phone control device 240A. ), A datacom circuit 220A for transmitting and receiving data under the control of the key phone control device 240A, and a button sensing circuit 230A for detecting input of various buttons and supplying corresponding information to the datacom circuit 220A. And an internal connection circuit 260A for matching with the key phone main device 100, and an LCD display circuit 210A for displaying display information on the LCD.

In the keyphone system configured as described above, a process of displaying an emergency message on a display device provided in a keyphone of a called party is described. For example, the first subscriber may be a CO subscriber and a first key phone apparatus 200A. When another second extension subscriber makes an emergency call to the first extension subscriber using the second keyphone device 200B in a busy state, the first extension device 200A used by the first extension subscriber is used. The unique number of the second key phone device 200B is displayed on the LCD provided.

However, in the conventional emergency message display method as described above, when an emergency call is made to a subscriber who is in a call, only the unique number of the emergency caller is displayed on the LCD provided in the caller's key phone device, so that the caller is urgently called. It is difficult to quickly determine whether the emergency caller should be connected after his or her call is terminated or whether the emergency caller should be connected to the emergency caller while waiting for a busy subscriber.

An object of the present invention for solving the above problems is to display a simple content of the emergency call message on the display device of the key phone used by the extension subscriber in a call to check the contents of the emergency message displayed by the extension subscriber in the call in time The present invention provides a method for displaying an emergency message of a digital key phone so that the contents of the emergency call can be accurately recognized.

According to the present invention for achieving the above object, when the first key phone device transmits an extension number corresponding to the second key phone device input to the key phone main device and requests an extension call, the key phone main device if the second key phone device is busy. The first step of transmitting a busy message to the first key device to display the busy message on the LCD of the first key device; A second step of transmitting emergency message function selection information corresponding to an emergency message function button input by the first key phone device to the key phone main device side and transmitting the received emergency message content to the key phone main device side after performing the first step; After performing the second step, the key phone main device recognizes that the emergency message function is selected based on the emergency message function selection information received from the first key phone device, and displays the contents of the emergency message received from the first key phone device. A third step of transmitting to the key phone apparatus; And after performing the third step, the second key phone device includes a fourth step of displaying, on the LCD, the contents of emergency messages authorized by the key phone main device.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

In the present invention, when an emergency message is sent and displayed to a subscriber who is in a call, the emergency message is performed in the order shown in FIG. 2. The operation is performed in the key phone system as shown in FIG.

First, it is determined whether the extension subscriber of the first key device 200A will make a trunk line call or an extension call (step S101). If the user wants to make a trunk line call in step S101, when the user dials using the button provided in the first key phone device 200A, the dialed telephone number is detected by the button detecting circuit 230A and the datacom circuit 220A is dialed. The telephone number applied and applied to the datacom circuit 220A includes the extension connection circuit 260A, the extension connection circuit 120, the datacom circuit 130, the system controller 150 and the trunk line connection circuit 110. When the call line is output to the CO line and the call line is connected to the CO line, after the normal call with the CO line subscriber (step S102), the operation ends. In addition, when the extension call is desired in step S101, when the extension number is dialed by using the button provided in the first key phone device 200A, the dialed extension number is detected by the button detection circuit 230A and the data comm. The extension number applied to the circuit 220A and applied to the datacom circuit 220A is transmitted to the system controller 150 via the extension connection circuit 260A, the extension connection circuit 120 and the datacom circuit 130. In this case, the system controller 150 determines whether or not the second key device 200B corresponding to the authorized extension number is busy (step S103). By controlling the control unit 140 to connect the call path between the first key device 200A and the second key device 200B to allow a normal internal call (step S104), the operation is terminated when the call ends. On the other hand, in step S103, the system controller 150 of the key phone main device 100, if the second key phone device 200B, which desires to talk, is busy, a data comm. It outputs to the LCD display circuit 210A via the extension connection circuit 120, the extension connection circuit 160A, and the datacom circuit 220A, and the corresponding busy message is transmitted to the first key phone device by the LCD display circuit 210A. 200A) is displayed on the LCD (step S105). At this time, when the extension subscriber of the first key device 200A desires an emergency call with the extension subscriber of the second key device 200B on the call (step S106), the extension subscriber of the first key device 200A receives an emergency message. The function button is selected and input (step S107), and the contents of the emergency message are input using the dial button (step S108). At this time, the button detection circuit 230A detects the emergency message function selection information and the emergency message content information corresponding to the corresponding button input, and thus the data comb circuit 220A, the extension connection circuit 260A, the extension connection circuit 120 and the data comb. The system controller 150 transmits the information to the system controller 150 through the circuit 130, and the system controller 150 recognizes that the emergency message function is selected based on the authorized emergency message function selection information, and stores the authorized emergency message content information. The LCD of the second key phone device 200B in a call is transmitted to the LCD display circuit 210B via the comb circuit 130, the extension connection circuit 120, the extension connection circuit 260B, and the datacom circuit 220B. The contents of the emergency message are displayed (step S109). Accordingly, the extension subscriber of the second key phone device 200B in the call visually checks the contents of the emergency message through the LCD and determines the importance based on the contents of the emergency message to determine whether to call the caller who sent the emergency message. Done.

As described above, the present invention transmits an urgent message of a desired content to the subscribers who are in a call and displays it on the LCD of the corresponding key phone device according to the situation when the subscriber wants to make an emergency call. By determining the importance of the emergency message, it is possible to quickly determine whether the emergency caller should be connected after his or her call is terminated or whether the emergency caller should be connected to the emergency caller while waiting for a busy subscriber.

Claims (1)

In the message display method of the digital key phone, when the first key phone device transmits an extension number corresponding to the input second key phone device to the key phone main device and requests an extension call, the key phone main device if the second key phone device is busy. The first step of transmitting a busy message to the first key device to display the busy message on the LCD of the first key device; A second step of transmitting emergency message function selection information corresponding to the emergency message function button input by the first key phone device to the key phone main device side and transmitting the received emergency message content to the key phone main device side after performing the first step; After performing the second step, the key phone main device recognizes that the emergency message function is selected based on the emergency message function selection information received from the first key phone device, and displays the contents of the emergency message received from the first key phone device. A third step of transmitting to the second key device; And a fourth step of displaying, on the LCD, the emergency message contents authorized by the key phone main device by the second key phone device after performing the third step.