KR100422927B1 - Selective Call Pick-Up Method In Private Branch Exchange System - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a selective call pickup method in a private exchange system, and in particular, when an incoming call occurs to a plurality of subscriber stations included in the same call pick-up group, the incoming call of a specific called terminal is selectively picked up. A selective call pickup method in a private exchange system is provided.

In a conventional private switching system, when an incoming call is made to a plurality of subscriber stations instead of any one subscriber station in the same pickup group, the first terminal among the subscriber stations in which the incoming call occurs is stored according to the order stored in the same pickup group table of the corresponding private exchange system. There is a drawback that the call pickup is performed only for the subscriber station, and the call pickup cannot be performed by selecting a specific subscriber station.

According to an embodiment of the present invention, when an incoming call to a plurality of subscriber stations included in the same pickup group occurs in a private switching system, information on all corresponding incoming subscribers is displayed on the LCD window of the pick-up terminal, or a button to which the corresponding call terminal is registered. By blinking the LED so that the user of the pick-up terminal can check all the called terminals that the ring is currently ringing, the pick-up terminal user can pick up a specific called terminal.

Description

Selective Call Pick-Up Method In Private Branch Exchange System

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a selective call pickup method in a private exchange system, and in particular, when an incoming call occurs to a plurality of subscriber stations included in the same pickup group, a private exchange system capable of selectively picking up an incoming call of a specific called terminal. It relates to a selective call pickup method in.

In general, in a private switching system, a call pickup, which is a function of forming a loop (pickup loop) at an extension terminal and responding on behalf of the extension subscriber, by dial operation, etc. at another extension terminal when an incoming call occurs to a predetermined extension terminal in the loop. call pick-up function, wherein the call pick-up structure of the private switching system (PBX) includes a subscriber processing block 11, a call processing block 12, and a ring as shown in FIG. The search block 13, the digit analysis block 14, and the display control block 15 are provided.

The subscriber processing block 11 constructs and processes an operation for each subscriber station as a message, and the call processing block 12 receives a message from the subscriber processing block 11 and analyzes and processes the operation of each subscriber station. Then, the ring search block 13 searches for one subscriber station ringing among all subscriber stations included in the same pickup group to which the subscriber station to which the call pickup code is dialed belongs.

The digit analysis block 14 analyzes the digit information dialed by the subscriber, and the display control block 15 controls the LCD display in the case of a terminal having a liquid crystal display (LCD) window, and a light emitting diode (LED). In the case of a terminal equipped with a button, the LED is controlled so that the subscriber can visually check.

Call pickup operation in the conventional private switching system (PBX) configured as described above will be described with reference to FIG.

First, among the subscriber stations included in the same pickup group, a ringing subscriber terminal (hereinafter referred to as a called terminal), a subscriber terminal not ringing, and a subscriber terminal (hereinafter referred to as a "pickup terminal") Assume that there is a subscriber terminal (hereinafter referred to as a 'calling terminal') that attempted to call the called terminal).

If a specific digit is dialed by the pick-up terminal user in this state, the digit analysis block 14 of the private exchange system PBX analyzes the dialed digit information (step S21), and the digit is a code for call pickup. (Step S22).

At this time, if the analyzed digit is a code for call pickup, after checking the pickup group including the pickup terminal, withdrawing the subscriber information from the group table managing the subscriber information of the same pickup group (step S23), the withdrawn subscriber information It is checked whether or not the ring of the corresponding subscriber station is ringing by analyzing (step S24).

If the ring of the corresponding subscriber station does not ring, the subscriber information recorded in the corresponding group table is fetched (step S25), and the control unit returns to step S24 to check whether the ring of the corresponding subscriber station rings. do.

However, if the ring of the subscriber station rings in step S24, after transmitting a check pickup message indicating call pickup to the subscriber station, i.e., the called terminal (step S26), the response message corresponding to the check pickup message is sent. It waits for the check pickup response message to be received (step S27).

At this time, when a check pick-up response message is received from the called terminal, a line answer message is transmitted to the calling terminal calling the called terminal (step S28), whereby a call is established between the called terminal and the pickup terminal. (Step S29).

However, in the conventional private switching system, when an incoming call is made to a plurality of subscriber stations instead of any one subscriber station in the same pickup group, the first among the subscriber stations in which the incoming call occurs according to the order stored in the same pickup group table of the corresponding private exchange system. The call pickup could be performed only for the subscriber station to be retrieved. That is, there is a disadvantage in that call pickup cannot be performed by selecting a specific subscriber station in the same pickup group at the will of the subscriber station user who wants to pick up the call.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object thereof is to provide information on all corresponding called subscribers when an incoming call to a plurality of subscriber stations included in the same pickup group occurs in a private exchange system. It is displayed on the LCD window of the receiver or the corresponding terminal is blinking the LED of the registered button so that the user of the pick-up terminal can check all the called terminals currently ringing, so that selective pick-up to a specific called terminal can be made possible. .

1 shows a call pickup structure of a typical private exchange system.

2 is a flowchart illustrating call pickup in a conventional private exchange system.

3 is a flowchart illustrating an optional call pickup operation when displaying incoming terminal information on the LCD of a pickup terminal in a private switching system according to the present invention;

4 is a diagram showing a state in which the destination terminal information is displayed on the LCD in FIG.

5 is a flowchart illustrating an optional call pickup operation in the case of displaying the terminal information by using the LED of the pickup terminal in the private switching system according to the present invention.

Explanation of symbols on the main parts of the drawings

11: subscriber processing block 12: call processing block

13: ring search block 14: digit analysis block

15: display control block

A feature of the present invention for achieving the object as described above comprises the steps of analyzing the dialed digit information to determine whether it is a call pickup code; In the case of a call pickup code, recording subscriber information of all the called terminals currently ringing among subscriber stations included in the same pickup group in a ring table; Displaying all incoming subscriber information recorded in the ring table on an LCD window of a pickup terminal; Waiting for a pickup selection digit to be received from the pickup terminal; Searching for the ring table and searching for a pick-up selected destination terminal corresponding to the received pick-up digit; Receiving a check pickup response message by transmitting a check pickup message to the picked-up destination terminal; It provides a selective call pickup method in a private switching system comprising the step of providing a call service between the calling terminal and the pickup terminal by transmitting a line response message to the calling terminal calling the pick-up destination terminal.

The recording of the subscriber information for all the called terminals for which the current ring is ringing may include: extracting subscriber information from the same pickup group table; Analyzing the extracted subscriber information to determine whether a ring of a corresponding subscriber station is ringing; Confirming whether ring checking for all subscriber stations recorded in the pickup group table ends; Fetching subscriber information sequentially until checking of ring occurrence for all subscriber stations is terminated and checking whether a ring of a corresponding subscriber station is ringing; And recording in the ring table the subscriber information for all the called terminals, which are the subscriber stations with which the ring is currently ringing.

In addition, the process of displaying the called party information on the LCD window of the pickup terminal, the phone number or the name of all the called party recorded in the ring table, the telephone number of the called party to provide a selective call pickup service Or, it displays the pickup selection digit which is an identification number mapped one-to-one to the name.

Another feature of the present invention includes the steps of flashing the LED of the corresponding button by broadcasting ring information to all subscriber stations registered to each button terminal receiving the incoming call; Receiving button press information of a pickup terminal for picking up a call to a specific called terminal; Receiving a check pick-up response message by transmitting a check pick-up message to a picked-up destination terminal corresponding to the received button press information; It provides a selective call pickup method in a private switching system comprising the step of providing a call service between the calling terminal and the pickup terminal by transmitting a line response message to the calling terminal calling the pick-up destination terminal.

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

The call pickup structure of the private switching system according to the present invention is the same as that of the conventional structure shown in FIG. 1, and the subscriber processing block 11 and the digit analysis block 14 are the same in their operation, and thus the description thereof is omitted. Other call processing blocks 12, ring search block 13, and display control block 15 are described as follows.

When the call processing block 12 receives the pressed button of the ringing subscriber button from the predetermined subscriber station through the subscriber processing block 11, the call processing block 12 searches for the corresponding button information and analyzes the state of the corresponding subscriber station. If this ringing subscriber, the corresponding call pickup process is performed.

The ring search block 13 retrieves all subscriber stations of which the ring is currently ringing among all subscriber stations included in the same pickup group to which the subscriber station to which the call pickup code is dialed belongs and ring corresponding receiver information. Manage with Here, the ring table is used to distinguish the selected called terminal when the pick-up terminal selects a specific called terminal.

The display control block 15 controls the LCD display in the case of a terminal with an LCD window to display information (telephone number and name) on all the called terminals that are currently ringing, and displays a button with an LED button. In this case, the LED is controlled to allow the user to visually check all incoming terminals currently ringing.

The selective call pick-up operation in the private switching system configured as described above causes the ringing ringing terminal information to be displayed on the pick-up terminal's LCD window to perform selective call pick-up and to perform selective call pick-up by using the LED of the pick-up terminal. It is divided into ways.

First, the selective call pickup operation in the case where the ringing ringing terminal information is displayed on the LCD window of the pickup terminal in the private switching system will be described in detail with reference to FIG. 3.

First, when a plurality of subscriber stations connected to the corresponding private switching system rings, any subscriber terminal (ie, pickup terminal) included in the same pickup group as the subscriber terminal (ie, called terminal) that is currently ringing is called. If a predetermined digit is dialed to pick up the call of the terminal, the digit analysis block 14 of the private exchange system analyzes the dialed digit information (step S31) to confirm whether it is a code for call pickup (step S32). ).

At this time, if the analyzed digit is a code for call pickup, after checking the pickup group including the corresponding pickup terminal, the subscriber information is withdrawn from the pickup group table managing the subscriber information of the same pickup group (step S33). The subscriber information is analyzed to determine whether the ring of the corresponding subscriber station is ringing (step S34).

If the ring of the subscriber station does not ring, it is checked whether the ring occurrence check for all subscriber stations recorded in the corresponding pickup group table is terminated (step S36), and the confirmation of ring occurrence for all subscriber stations is performed. If it is not terminated, the next subscriber information is taken out (step S37), and the process returns to step S34 to check whether the ring of the corresponding subscriber station is ringing and repeat the operation.

If it is determined in step S34 that the ring of the corresponding subscriber terminal is ringing, the subscriber information corresponding to the corresponding subscriber station, that is, the called terminal, is recorded in the ring table (step S35), and then all the subscriber stations recorded in the corresponding pickup group table. By repeating the operation of step S36 to confirm whether or not the confirmation of the occurrence of a ring for the terminal has been completed, the subscriber information for all the called terminals currently ringing among the subscriber stations included in the corresponding pickup group table is recorded in the ring table. do.

On the other hand, when the confirmation of ring occurrence for all subscriber stations recorded in the corresponding pickup group table is completed in step S36, the subscriber information for all the called terminals recorded in the ring table so far, i.e., the called subscriber information having a ring is picked up. It is displayed on the LCD window of the terminal (step S38). At this time, the called party information generated by the ring displayed on the LCD window of the corresponding pickup terminal is displayed in the same manner as in FIG. In order to provide an optional call pickup service that allows the pick-up terminal user to view the phone number or name (in English or Korean) displayed on the LCD window and select one particular called party (called terminal), The identification numbers (digits from 0 to 9) mapped one-to-one are displayed together.

Thereafter, the call processing block 12 of the private switching system waits for the pick-up terminal user to receive the identification number of the specific called party to be picked up, i.e., the pick-up selection digit, to receive by looking at the called party information displayed on the LCD window (step S39).

At this time, if the corresponding pickup selection digit is received as the corresponding pickup terminal user dials the identification number of the specific subscriber to be picked up, the subscriber information of the called terminal corresponding to the received pickup selection digit is searched by searching the previously recorded ring table. (Step S40), use the subscriber information of the retrieved called terminal (the called terminal picked up by the pickup terminal user) to transmit a check pick-up message indicating the call pickup to the selected picked-up terminal (step S41). It waits for the check pickup response message, which is a response message to the check pickup message, to be received (step S42).

After that, when the check pick-up response message is received from the corresponding pick-up destination terminal, a line response message is transmitted to the calling terminal calling the called terminal (step S43), whereby a call is made between the calling terminal and the pickup terminal (step S43). Step S44).

Second, the selective call pickup operation in the case of displaying the ringing ringing terminal information in the private switching system using the LED of the pickup terminal will be described in detail with reference to FIG.

First, when an incoming call to a plurality of subscriber stations connected to the private switching system occurs, the call processing block 12 sends a ring to each destination terminal where the incoming call occurred (step S51), and registers the corresponding destination terminal in the button. The information indicating that the ring of the predetermined called terminal is ringing is broadcast to all the subscriber stations (step S52).

Accordingly, each subscriber station registering the called terminal ringing to the button periodically flashes the LED of the corresponding button to display the called terminal currently ringing.

At this time, the subscriber terminal, that is, the user of the pick-up terminal, which selects a button corresponding to the destination terminal to be picked up from among the buttons whose LED is blinking, is selected from among the terminals that are currently ringing. After receiving the button press information of the pick-up terminal (step S53), the call processing block 12 of the switching system uses the received button press information to confirm whether or not the button has registered the destination terminal to which the ring is currently ringing (step S53). S54).

If it is not a button that registers a called terminal whose ring is currently ringing, that is, a button that registers a subscriber terminal which does not ring, the call is requested to the subscriber terminal registered in the corresponding button. Call processing is performed (step S55).

By the way, in the case of the button which registered the called terminal which ring is ringing at step S54, a check pick-up message indicating call pickup is transmitted to the called terminal, namely, the selected pick-up terminal (step S56), and a response to the checked pickup message is received. It waits to receive the check pickup response message which is a message (step S57).

At this time, if a check pick-up response message is received from the corresponding pick-up destination terminal, a line response message is transmitted to the calling terminal calling the called terminal (step S58), and thus a call is made between the calling terminal and the pickup terminal. (Step S59).

As described above, in the present invention, when an incoming call to a plurality of subscriber stations included in the same pickup group occurs, information about the called terminal is displayed on the LCD window of the pick-up terminal, or the LED of the button registering the called terminal is displayed. By blinking, all the called terminals included in the same pickup group can be confirmed by the pick-up terminal user, so that the pick-up terminal user can pick and pick a specific called terminal from his / her own terminal.

In addition, the embodiments according to the present invention are not limited to the above-described embodiments, and various alternatives, modifications, and changes can be made within the scope apparent to those skilled in the art.

As described above, according to the present invention, when an incoming call to a plurality of subscriber stations included in the same pickup group occurs in a private exchange system, information about all corresponding incoming subscribers is displayed on the LCD window of the pick-up terminal, or the called terminal By blinking the LED of the registered button so that the user of the pick-up terminal can check all the called terminal ring is ringing, so that the user of the pick-up terminal can pick up a specific destination terminal.

Claims (4)

Analyzing dialed digit information to determine whether it is a call pickup code; In the case of a call pickup code, recording subscriber information of all the called terminals currently ringing among subscriber stations included in the same pickup group in a ring table; Displaying all incoming subscriber information recorded in the ring table on an LCD window of a pickup terminal; Waiting for a pickup selection digit to be received from the pickup terminal; Searching for the ring table and searching for a pick-up selected destination terminal corresponding to the received pick-up digit; Receiving a check pickup response message by transmitting a check pickup message to the picked-up destination terminal; And providing a call service between the calling terminal and the pick-up terminal by transmitting a line response message to the calling terminal that has called the picked-up destination terminal. The method of claim 1, The process of recording subscriber information of all the called terminals for which the current ring is ringing in a ring table includes: extracting subscriber information from the same pickup group table; Analyzing the extracted subscriber information to determine whether a ring of a corresponding subscriber station is ringing; Confirming whether ring checking for all subscriber stations recorded in the pickup group table ends; Fetching subscriber information sequentially until checking of ring occurrence for all subscriber stations is terminated and checking whether a ring of a corresponding subscriber station is ringing; And recording in the ring table the subscriber information for all the called terminals, which are the subscriber stations with which the ring is currently ringing. The method of claim 1, Displaying the called party information on the LCD window of the pickup terminal, the phone number or name of all the called party recorded in the ring table, but the phone number or name of the called party to provide a selective call pickup service And a pickup selection digit, which is an identification number mapped one-to-one, with a selective call pickup method. Broadcasting ring information to all subscriber stations registered to each button to which incoming calls have occurred, and flashing LEDs of corresponding buttons; Receiving button press information of a pickup terminal for picking up a call to a specific called terminal; Receiving a check pick-up response message by transmitting a check pick-up message to a picked-up destination terminal corresponding to the received button press information; And providing a call service between the calling terminal and the pick-up terminal by transmitting a line response message to the calling terminal that has called the picked-up destination terminal.