KR19980083759A - How to register and call a neighboring phone number - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

How to register and call the neighbor number of the key phone system.

I. The technical problem to be solved by the invention

By registering a certain number of neighboring numbers for each extension number in the keyphone system, the neighboring numbers registered in advance can be called when the calling extension is busy or unanswered.

All. Summary of Solution of the Invention

The neighboring number registration and calling method of the key phone system registers a certain number of neighboring numbers for each station, and calls the first neighboring number which is dormant among the neighboring numbers registered in advance whenever a neighboring number call is selected.

la. Important uses of the invention

If an extension called by the keyphone system is busy or unanswered, the neighboring numbers can be called by the caller's specific key input.

Description

How to register and call a neighboring phone number

The present invention relates to a method for registering and calling a neighbor number of a key phone system, and more particularly, to a method for registering and calling a neighbor number of a key phone system, which can call neighbor numbers registered in advance when the called extension is busy or unanswered. .

In the conventional key phone system, if the called extension is busy or unanswered, the caller had to find out the extension number near the extension or the extension group number to which the extension belongs in order to call another extension nearby. .

Also, even if they are generally in the same extension group but are not geographically adjacent to each other, even if an extension in the extension group answers, the caller must switch back to a nearby extension in order to know whether the extension subscriber wants to call. Only did. In other words, even though it was not their own phone, many subscribers had to take the effort to connect the call to the extension subscriber required by the caller.

Accordingly, an object of the present invention is to provide a method for registering a predetermined number of adjacent numbers for each extension in a key phone system.

Another object of the present invention is to provide a method of calling neighboring numbers registered in advance when the called extension is busy or unanswered.

The neighbor number registration and calling method of the key phone system for achieving the above objects registers a certain number of neighbor numbers for each station, and the first extension that is in the idle state among the neighbor numbers registered in advance whenever the neighbor number call is selected. It is characterized by calling.

1 is a block diagram of a key phone system according to the present invention;

2 is an operation flowchart for registering a neighbor number according to the present invention;

3 is an operational flowchart for calling a neighbor number according to the present invention;

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

1 is a diagram showing the configuration of a key phone system, the control unit 111 controls the overall operation of the key phone system to control call switching and provide various services to the user. The ROM 112 stores a program of the control unit 111 and initial service data for performing basic calls and various functions. The RAM 113 temporarily stores data generated while the controller 111 executes a program. The RAM 113 stores a neighbor number table in which neighbor numbers corresponding to respective stations are registered in the present invention. The switching circuit 114 switches various signals under the control of the control unit 111. The subscriber circuit 115 supplies a call current to the subscriber telephone under the control of the controller 111 and simultaneously interfaces a signal between the subscriber telephone and the switching circuit 114. The ring generator 116 generates a ring signal and supplies it to the subscriber circuit. The trunk line circuit 117 forms a trunk line call loop under the control of the control unit 111 to form a trunk line CO, and interfaces a signal between the trunk line CO and the switching circuit 114. Here, CO line CO refers to a line connecting the CO line circuit 117 and a national exchange (not shown). The tone generator 118 generates various tone signals under the control of the controller 111 and outputs them to the switching circuit 114. A dual tone multi frequency (DTMF) receiver 119 analyzes the DTMF signal input from the switching circuit 114, converts the signal into digital data, and outputs the digital data to the controller 111. Here, the DTMF signal input to the DTMF receiver in the switching circuit 114 is a telephone number generated by the trunk line subscriber or a telephone number generated by the extension subscriber. The DTMF transmitter 120 converts the digital data output from the control unit 111 into a DTMF signal and outputs the DTMF signal to the switching circuit 114. Here, the DTMF signal output from the DTMF transmitter 120 becomes the telephone number of the trunk line subscriber generated when the station side calls the trunk line side.

2 is an operation flowchart for registering a neighbor number according to the present invention.

Hereinafter, an embodiment of registering a neighbor number according to the present invention will be described in detail with reference to FIG. 2.

The registration process may be performed in a key phone or a personal computer (PC). In the following embodiment, a key phone is described as an example.

First, the control unit 111 enters the extension programming mode in step 211. The extension programming mode entry is performed by inputting a specific key of a subscriber from a key phone. In step 213, the controller 111 receives a password from the subscriber and proceeds to step 215.

The control unit 111 proceeds to step 215 enters the extension programming mode corresponding to the password. In this case, the controller 111 displays a plurality of items that the subscriber can program on the display window of the keypad phone in step 217.

According to the present invention, the control unit 111 selects the neighbor number registration item by the user's Kinuroom in step 219. Then, the frame of the neighbor number table is displayed on the display window of the key phone, and the control unit 111 receives a predetermined number of neighbor numbers by key input of the subscriber in step 221.

The controller 111 registers the input neighbor numbers in the neighbor number table in step 223 and proceeds to step 225. In this case, if the end key is not input in step 225, the control unit 111 returns to step 221 to receive the neighbor number again. If the end key is input, the control unit 111 terminates the neighbor number registration program.

3 is an operation flowchart for calling a neighbor number according to the present invention.

Hereinafter, an embodiment of a neighbor number call according to the present invention will be described in detail with reference to FIG. 3.

First, in step 311, the control unit 111 generates a ring tone to the extension to which the caller wants to talk. The controller 111 checks whether the extension called in step 313 is busy or absent.

At this time, if the called extension is not busy or absent, the control unit 111 proceeds to step 329 to perform a call. If the call is to be absent or proceeds to step 315, the controller 111 checks whether a neighbor number call key is input.

Here, an example of the input of the adjacent number call key is described. In the case of a key phone, the input is made of a specific key such as a [NEAR-STN] key. By typing].

In this case, when the neighbor number call selection key is input from the calling subscriber, that is, when the neighbor number call ID (ID) is input after the hook flash in the [NEAR-STN] key of the keypad or a general telephone, the control unit 111 proceeds to step 317. If the adjacent number call selection key is not input, the control unit 111 proceeds to step 331 to perform normal call processing of the exchange system.

The control unit 111 proceeds to step 317 to sequentially search the neighbor number table. In step 319, the controller 1111 checks whether there is a dormant adjacent number.

In this case, if there is an adjacent number in the dormant state, the controller 111 proceeds to step 321. If the adjacent number in the dormant state does not exist, the control unit 111 proceeds to step 331 and performs a normal call processing.

The control unit 111 calls the neighbor number in the idle state in step 321, and checks whether the neighbor number in the idle state is hooked off in step 323. At this time, when the neighboring number is idle, the control unit 111 performs a call with the extension of the hooked-out neighboring number. If the hooking number is not off, the control unit 111 proceeds to step 325.

The controller 111 proceeds to step 325 and checks again whether a neighbor number call key is input. In this case, when the neighbor number call key is input, the controller 111 proceeds to step 327. If the neighbor number call key is not input, the controller 111 proceeds to step 331 to perform normal call processing.

The controller 111 proceeds to step 327 and searches for the first neighbor number registered in the dormant state next to the currently called neighbor number through the neighbor number table, and returns to step 319 to re-run the program below step 319.

On the other hand, when all the neighbor numbers registered in the neighbor number table are called in executing the program for calling the neighbor number, the caller continuously presses the [NEAR_STN] key or the [flash number call ID] after the hook flash. Recursively searches the neighbor number table and calls the first extension that is idle.

As described above, the present invention can eliminate the trouble of having to make a call by finding a nearby extension number or a group number to which the extension belongs when the extension called in the keyphone system is busy or there is no response for a certain period of time.

That is, the caller can automatically call the neighbor numbers registered in the extension by selecting a specific key of the terminal used by the caller without having to call out a new neighbor number.

Claims (2)

In the neighbor number registration and call method of the key phone system, Keyphone system, characterized by registering a certain number of neighboring numbers for each station, and if the calling extension is selected when the calling station is not answered or busy, the neighboring phone number is registered in advance corresponding to the calling station. How to register and call a neighbor number. In the neighbor number registration and call method of the key phone system, Registering a certain number of neighboring numbers in the neighboring number table when the neighboring number registration key is entered for each station; Calling the first neighbor number that is idle by searching the neighbor number table when the called extension is not answered or busy and the neighbor number call is selected; A method for registering and calling a neighbor number of a key phone system, characterized in that the process of ending the neighbor number calling function when the called extension is hooked off.