KR100329459B1 - Method for display opposite information in private branch exchange - Google Patents

Abstract

The present invention relates to a method of displaying counterpart information in a private exchange.

An object of the present invention is that a subscriber transmits a CO line signal at a private exchange or when a CO line signal is received through a CO line by an originating party, an incoming call selected by the subscriber or originating party that has transmitted the CO line signal so that the other party's information can be easily checked. The present invention provides a counterpart information display method in a private exchange displayed on a liquid crystal display of a subscriber's digital telephone.

To this end, the present invention provides a counterpart information display method in a private exchange in which a subscriber using a digital phone with a liquid crystal display device is connected through an internal circuit: when an incoming call is detected through the trunk line of the private exchange, Check if the phone number is included, if the call line includes the calling party number, detect the same party number from the other party information stored in the private exchange.If the same party number is the same as the calling party number, call from the other party. The other party's name corresponding to the number is detected, and the detected party's information is displayed on the liquid crystal display of the called party who received the trunk line signal.

According to the present invention, since the counterpart's telephone number or name is displayed on the LCD of the subscriber's digital phone when the CO line signal is received or received through the private exchange, the subscriber reconfirms whether the counterpart's telephone number inputted at the CO line is correct. In case of an incoming / outgoing call, there is an advantage that the calling party can be easily identified through the other party's phone number or name before calling with the calling party.

Description

Method for display opposite information in private branch exchange}

The present invention relates to a method of displaying counterpart information in a private exchange. More particularly, when a subscriber of a private exchange transmits a trunk line signal or receives a trunk line signal through a trunk line by a calling party, the subscriber or originator of the trunk line signal is sent. It relates to a method of displaying the information of the other party to the called party selected by the side.

The exchange is developed for the purpose of telephone exchange, which is the most commonly used basic communication service, and basically consists of a call system in which voice is input, exchanged and output, and a control system controlling the same.

It is classified into mechanical, inverted and all-electric according to the configuration of the currency path system, and classified into manual, mechanical, and electronic according to the control system configuration.PBX (Private Branch Exchange), It is divided into a local exchange, a long distance exchange, and an international exchange, and recently, an ISDN exchange that accommodates an ISDN function has been developed and distributed.

Here, the private exchange generally allows a plurality of extension lines to be shared and used by a plurality of extension subscribers.

Briefly looking at the flow of the station subscriber connected to the private exchange to send the CO line signal, the subscriber of the private exchange presses the CO line access code for the CO line call, and enters the number of the other party if the CO line connection is successful. When the subscriber completes input of the other party's number, the other party rings through the trunk line.

At this time, the phone number of the other party inputted by the subscriber who transmits the trunk line signal is displayed on the liquid crystal display (hereinafter referred to as 'LCD') of the subscriber's digital phone (DGP). . The subscriber can visually check the other party's telephone number displayed on the LCD of the DGP to confirm that the input of the telephone number is correct.

On the other hand, when the flow of the trunk line signal is received by the station subscriber connected to the private exchange briefly, if the incoming call is detected through the trunk line of the private exchange, the ring ring to the called party selected by the calling party.

At this time, there may be a case where the caller name is included in the trunk line signal received by the calling party according to the trunk line signaling method. If the calling line includes the calling party's name, the calling party's name is displayed on the LCD of the called party's DGP. The called party can visually check the calling party name displayed on the LCD of the DGP to confirm the calling party before the call.

However, according to such a conventional private exchange, if the calling party's name is not transmitted at the private exchange, the called party cannot confirm the calling party until the call is made with the calling party. Since only the other party's phone number is displayed, there is inconvenience in using the phone number.

Accordingly, an object of the present invention is to solve such a problem, and an object of the present invention is to easily check the counterpart information when a subscriber sends a trunk line signal or receives a trunk line signal through a trunk line by a calling party in a private exchange. The present invention provides a method of displaying counterpart information in a private exchange which is displayed on a liquid crystal display device of a digital telephone of a subscriber who has selected a call line or a called party.

1 is a schematic block diagram of a private exchange system applied to the present invention;

2 is an operation flowchart for displaying the other party information when the CO line is sent according to the present invention;

3 is an operation flow chart for displaying the other party information when the trunk line in accordance with the present invention,

Figure 4 is a lookup table for storing the information of the other party displayed when the incoming and outgoing calls.

<Description of the code | symbol about the principal part of drawing>

10: control unit 11: ROM

12 RAM 13 Switching Circuit

14: trunk line circuit 15: internal subscriber circuit

16: dedicated subscriber circuit 17: ring generator

18: DTMF receiver 19: DTMF transmitter

In order to achieve the above object, a feature of the present invention is to provide a counterpart information display in a private exchange where a subscriber using a digital phone with a liquid crystal display device is connected through an internal circuit: an incoming call is transmitted through a trunk line of the private exchange. Detecting that the call line includes the calling party number in the CO line signal; if the call line includes the calling party number, detecting the same party number from the counterpart information previously stored in the private exchange; Detecting a counterpart name corresponding to the telephone number from the counterpart information if the same counterpart phone number exists; and displaying the detected counterpart information on a liquid crystal display of the called party receiving the trunk line signal.

Preferably, the method further comprises the step of checking the display priority set in the private exchange if the same telephone number as the calling party telephone number exists in the calling party information; If the display priority is the counterpart name, the counterpart name detection step is performed. If the display priority is the counterpart phone number, the display step is performed.

Preferably, the counterpart information is the counterpart phone number and the counterpart name corresponding one-to-one to the counterpart phone number.

Another feature of the present invention is a subscriber information display method in a private exchange in which a subscriber using a digital phone with a liquid crystal display device is connected via an internal circuit: when a CO line access code for a trunk line transmission is input from a subscriber Switching a predetermined trunk line in a trunk line circuit, checking whether a subscriber enters the other party's telephone number after the predetermined trunk line is switched, and if the other party's telephone number is entered, the same telephone number among the other party information stored in the private exchange. And detecting a counterpart name corresponding to the detected telephone number if the same telephone number is detected, and displaying the detected user information on the subscriber's liquid crystal display.

Preferably, the user information display step displays the detected counterpart phone number and the counterpart name corresponding to the counterpart phone number if the same phone number is detected in the phone number detection step, and if the same phone number is not detected in the phone number detection step. Displays the other party's phone number entered.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the elements of each drawing, it should be noted that the same elements are denoted by the same reference numerals as much as possible even if they are displayed on different drawings. In addition, in the following description there are shown a number of specific details, such as components of the specific circuit, which are provided only to help a more general understanding of the present invention that the present invention may be practiced without these specific details. It is self-evident to those of ordinary knowledge in Esau. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Figure 1 is a schematic block diagram of a private exchange is applied to the present invention, Figure 2 is an operational flow diagram for displaying the other party information when the trunk line transmission in accordance with the present invention, Figure 3 according to the present invention An operation flow chart for displaying the other party information when the incoming / outgoing call is shown, and FIG. 4 illustrates a lookup table that stores information of the other party displayed when the incoming / outgoing call occurs.

Referring to FIG. 1, the controller 10 controls the overall operation of the private exchange according to the program set in the ROM 11.

The ROM 11 stores an initial program and an operation program of the controller 10.

The RAM 12 stores the extension number for performing the exchange function and the data generated according to the function execution. In particular, according to a preferred embodiment of the present invention, the other party's telephone number for receiving and sending the trunk line signal and the other party's name corresponding to the other party's telephone number are stored in the form of a look-up table (see FIG. 4).

The switching circuit 13 performs a switching operation under the control of the controller 10 to form a loop for making calls between stations and between stations.

The trunk line circuit 14 connects a plurality of trunk lines coming from a local exchanger (not shown) to the switching circuit 13 under the control of the controller 10, and detects a ring received through the trunk line to the controller 10. to provide.

The extension circuit is largely divided into an extension subscriber circuit 15 to which a general subscriber is connected, and a subscriber circuit 16 to a keyphone exclusively to which a key subscriber is connected.

The extension subscriber circuit 15 monitors the state of a plurality of extension subscribers (general telephones), and performs a function of supplying a call current during a call. In addition, a plurality of general telephones are connected to the switching circuit 13 under the control of the controller 10.

The key phone dedicated subscriber circuit 16 performs functions such as monitoring the state of a plurality of extension key phone subscribers (key phone phones), supplying a call current during a call, and the like. In addition, a key phone telephone, a voice line and a data line are connected, and a plurality of key phone telephones are connected to the switching circuit 13 under the control of the controller 10.

The ring generating unit 17 performs a ring under the control of the control unit 10 according to a call request to a specific extension subscriber authorized through the trunk line circuit 14, the extension subscriber circuit 15, and the key subscriber subscriber circuit 16. Send it out.

The dual tone multi frequency (DTMF) receiver 18 analyzes the DTMF signals received through the trunk line circuit 14, the subscriber subscriber circuit 15, and the subscriber circuit 16 exclusively for the phone, and converts them into digital data. To the control unit 10.

The DTMF generation unit 19 converts the digital data output from the control unit 10 into a DTMF signal and outputs it to the switching circuit 13.

An operation of the present invention having such a configuration will be described in detail with reference to FIGS. 2 to 4.

Here, it is assumed that the subscriber's telephone connected to the private exchange uses the DGP including the LCD.

First, referring to Figure 2 will be described the process of the subscriber to transmit the trunk line signal through the private exchange.

The control unit 10 checks whether the CO line connection code selected by the subscriber for CO line transmission is input through the extension circuit which is the subscriber subscriber circuit 15 or the subscriber circuit 16 dedicated to the keyphone (S201). The circuit 13 forms a loop to make a call between the extension line and the trunk line under the control of the controller 10, and the trunk line circuit 14 connects the available trunk line to the switching circuit 13 (S202).

When a predetermined trunk line is connected, the controller 10 checks whether the other party's telephone number is input (S203), and displays the other party's telephone number input by the subscriber on the LCD of the DGP (S204).

That is, a subscriber to make a CO line call inputs a CO line connection code (for example, numeric key '9'), and when TEL # or DTS # of the CO line connected to the switching circuit 13 is displayed on the LCD of the DGP, the CO line Enter the other party's phone number because the connection is successful.

When the subscriber enters the other party's telephone number, the controller 10 searches whether the same telephone number as the other party's telephone number entered by the subscriber exists in the look-up table stored in the RAM 12 (S205).

In this case, when the subscriber does not include the area code in the other party's phone number, the controller 10 searches the look-up table stored in the RAM 12 including the pre-registered area code.

If the same number as the subscriber's phone number entered by the subscriber is found, the controller 10 detects the other party's name corresponding to the retrieved phone number from the look-up table stored in the RAM 12 (S206). The counterpart name is displayed on the LCD of the subscriber's DGP (S207).

That is, when the CO line connection is successful and the subscriber enters the other party's telephone number, the other party's telephone number is displayed on the LCD of the subscriber's DGP. If the other party's name corresponding to the other party's phone number entered by the subscriber is stored in the look-up table stored in the RAM 12, the other party's phone entered by the subscriber on the LCD of the DGP after a predetermined time elapses after entering the other party's telephone number. In addition to the number, it is displayed in the other party's name.

On the other hand, if the search result in step 205 (S205) for searching whether the same phone number as the counterpart's phone number entered by the subscriber exists in the look-up table stored in the RAM 12, the same phone number as the counterpart phone number does not exist. Only the other party's phone number is displayed on the LCD of the subscriber's DGP.

In addition, after completing the input of the other party's phone number, the above process of detecting the other party's name corresponding to the other party's phone number and displaying it on the LCD of the DGP is performed by the other party hooking off the phone. Until now.

Therefore, since the subscriber can input the other party's telephone number and check the other party's name displayed on the LCD within a predetermined time, it is possible to reconfirm whether the telephone number is correctly input.

In addition, referring to Figure 3 will be described the process of the incoming subscriber selected by the caller in the private exchange receives the CO line signal.

The controller 10 checks whether the incoming ring is detected through the trunk line circuit 14 (S301). Here, the trunk line circuit 14 typically incorporates a circuit for detecting the incoming ring, and provides a detection signal to the controller 10 when the incoming ring is detected.

When the incoming ring is detected, the controller 10 checks whether the incoming call line signal includes the other party's telephone number, that is, the calling party's telephone number (S302).

If the other party's phone number is included in the CO line signal, the controller 10 searches whether the same phone number as the other party's phone number included in the CO line signal exists in the look-up table stored in the RAM 12 (S303).

If the same phone number as the counterpart phone number exists as a result of the search, the controller 10 checks the display priority set in the system (S304).

When the display priority set in the system is the counterpart name, the controller 10 detects the counterpart name corresponding to the same phone number as the counterpart phone number in the look-up table stored in the RAM 12 (S305). The other party's name is displayed on the LCD of the called party's DGP (S306).

On the other hand, if the display priority set in the system is the other party's phone number, the control unit 10 controls the extension circuit to receive the CO line signal to the called party and announces the ring to the called party's DGP LCD. Display on (S307).

In addition, when the search result in step 303 (S303) for searching whether the same phone number as the counterpart phone number input by the subscriber exists in the look-up table stored in the RAM 12, if the same phone number as the counterpart phone number does not exist. The controller 10 checks whether to display the other party's telephone number included in the trunk line signal on the LCD of the called party's DGP (S308).

As a result of the check, if the same phone number as the other party's phone number included in the CO line signal does not exist in the look-up table of the RAM 12, if it is set to display the other party's phone number on the incoming subscriber's LCD, the process branches to step 307 (S307). If it is determined that display of the other party's telephone number is not set, the procedure ends.

In addition, if the other party's telephone number is not included in the check result 302 (S302) of confirming whether the other party's telephone number is included in the CO line signal, the controller 10 does not display any information while giving the ring to the called party. .

Therefore, the called party who has received the CO line signal by the calling party can easily check the other party before the calling party is in a call state.

As described above, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

As described above, according to the counterpart information display method of the private exchange according to the present invention, since the counterpart's telephone number or name is displayed on the LCD device of the subscriber's digital phone at the time of incoming / outgoing CO line signal through the private exchange, The subscriber can re-confirm if the other party's phone number is correct when the call is made, and when the call is made, the calling party can easily check the calling party through the other party's phone number or name.

Claims (5)

A method of displaying counterpart information of a digital phone connected to a trunk line through a private exchange: When an incoming signal is detected through a trunk line of the private exchange, checking whether the trunk line signal includes a calling party number; If the call line includes the calling party's telephone number, detecting the other party's telephone number identical to the calling party's telephone number from the other party's information previously stored in the private exchange; Detecting a counterpart name corresponding to the phone number from the counterpart information if the counterpart phone number identical to the calling party number exists; And displaying the detected counterpart information on a display device of a digital subscriber of the called party who received the trunk line signal. The method of claim 1, If the same telephone number as the calling party telephone number exists in the calling party information, checking the display priority set in the private exchange; And if the display priority is the other party's name, performing the other party's name detection step, and if the display priority is the other party's phone number, performing the display step. According to claim 2, The counterpart information, Counterpart information display method, characterized in that the counterpart name corresponding to the counterpart phone number and the counterpart phone number. A method of displaying counterpart information of a digital phone connected to a trunk line through a private exchange: Switching a predetermined trunk line from a trunk line circuit of the private exchange when a trunk line access code for trunk line transmission is input from the subscriber; Checking whether the subscriber inputs the other party's telephone number after the predetermined trunk line is switched; If the counterpart phone number is input, detecting the same phone number from counterpart information previously stored in the private exchange; If the same telephone number is detected, detecting a counterpart name corresponding to the detected telephone number; And displaying the detected user information on the subscriber's liquid crystal display. The method of claim 4, wherein the displaying of the user information comprises: If the same phone number is detected in the phone number detection step, the detected counterpart phone number and the counterpart name corresponding to the counterpart phone number are displayed. If the same phone number is not detected in the phone number detection step, the subscriber inputs the same number. And displaying counterpart information on the counterpart.