KR0162837B1 - Trunk seizure method for terminals connected with pbx - Google Patents

Abstract

1. Technical field to which the invention described in the claims belongs

A terminal connected to a private switching network.

2. Technical problem that the invention tries to solve

This eliminates the inconvenience of having to press a specific service digit every time you want to make a call over a CO line from a terminal connected to a private switching network.

3. Summary of the solution of the invention

According to the present invention, when a subscriber of a terminal connected to a private exchange network presses a telephone number of a CO line for a call over a CO line, the stored service digit is transmitted before the first pressed digit is transmitted to catch a CO line and then increase the number. It provides a method for causing a given digit to be sent.

4. Important uses of the invention

Fax or telephone

Description

How to catch CO line from a terminal connected to private exchange network

1 is a view showing the configuration of a typical facsimile.

2 is a diagram illustrating a processing flow of a method for catching trunk lines in a facsimile connected to a private switching network according to the present invention.

* Explanation of symbols for the main parts of the drawings

111: control unit 112: operation panel (OPE)

113: sensor unit 114: scanning unit

115: image processing unit 116: printing unit

117: modem 118: network control unit (NCU)

119: Speaker

The present invention relates to a terminal connected to a private switching network, and more particularly, to a method for catching a trunk line in the terminal.

In general, when a subscriber wants to make a call through a CO line from a terminal such as a telephone or a facsimile connected to a private switching network, he or she must press a specific service digit (eg 'digit 9') before dialing the telephone number of the actual CO line. . Only after this service digit is pressed does the private exchange network respond in response to seizure and dial the telephone number of the trunk line being pressed afterwards.

However, if the user wants to make a call through the CO line, the subscriber of the terminal connected to the private exchange network has to press a specific service digit every time. Particularly, if the subscriber forgets to press a specific service digit and presses the phone number of the CO line, the dialing of the phone number of the CO line will fail, so the subscriber should dial the phone number of the CO line that he / she wants to call with the specific service digit from the beginning. There is an inconvenience to press.

Accordingly, an object of the present invention is to provide a method for enabling a subscriber to make a call through a trunk line without pressing a specific service digit by a subscriber of the terminal connected to the private switching network.

Another object of the present invention is to provide a method of catching a trunk line by automatically sending a specific service digit when a subscriber of a terminal connected to a private switching network presses a telephone number of the trunk line.

In order to achieve the above objects, the present invention provides a service digit previously stored before the first digit is transmitted when a subscriber of a terminal connected to a private switching network presses a telephone number of a CO line for a call over a CO line. The present invention provides a method of allowing a digit to be sent after catching a trunk line.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

It will be appreciated that the preferred embodiment of the present invention will be described below by taking a facsimile connected to a private switching network as an example. However, it should be noted that the present invention can be applied not only to facsimile but also to telephones connected to a private switching network. The terms to be described below are defined in consideration of functions in the present invention, which may vary depending on the intention or custom of the user or chip designer, and the definitions should be made based on the contents throughout the present specification.

1 is a diagram illustrating a general facsimile configuration, and the control unit 111 controls overall operations of the facsimile transmission mode, the reception mode, and the copy mode according to a set program. In addition, the control unit 111 may be built-in or connected to the program memory and data memory. The program memory stores a plurality of programs including the program of the present invention, and the data memory temporarily stores data generated during program execution. The OPE (Operating Panel Equipment) 112 is composed of key input means and display means. The key input means of the OPE 112 generates data of a key pressed by the user for designating each mode and performing an operation of the designated mode, and outputs the data to the controller 111. In addition, the display means of the OPE 112 performs a function of inputting and displaying display data indicating an operation state of the system when the controller 111 performs each mode. The sensor unit 113 detects the presence or absence of input paper and print paper, and outputs the detected state signal to the control unit 111. The scanning unit 114 moves the input original, scans the image of the original, and converts the image into digital data. The image processing unit 115 processes and outputs an image signal output to the scanning unit 114 in a transmission mode and a copy mode under the control of the control unit 111, and processes an image signal received through a transmission line in a reception mode. do. The image processing unit 115 encodes the image data output from the scanning unit 114 in accordance with the standard of the facsimile, and performs a function of decoding the encoded and received image data into original image data. The print unit 116 prints image data input from the image processing unit 116 on printing paper when the reception mode and the copy mode are executed under the control of the control unit 111. The modem 117 modulates and transmits image data output from the image processing unit 115 in a transmission mode under the control of the control unit 111 to an image signal in a transmission mode, and transmits the image signal input in the reception mode. Demodulate to process at 115. The network control unit 118 forms a transmission and reception path between the transmission line and the modem 117 under the control of the control unit 111. The speaker 119 generates an alarm according to a control signal corresponding to the alarm generated by the control unit 111 during the operation of the fax.

2 is a flowchart illustrating a method for catching a trunk line in a facsimile connected to a private switching network according to the present invention. The program according to the processing flow is stored in a program memory of the controller 111. The program memory of the control unit 111 also stores a setting program for performing a function of a conventional facsimile and a setting program for performing a function according to the present invention. An operation mode according to a setting program that enables setting of a function according to the present invention will be referred to herein as a PABX mode. The subscriber can set this PABX mode in a facsimile connected to the private switched network to allow the operation according to the invention to be performed.

It is now assumed that the subscriber presses the telephone number of the trunk line using the key input means of the OPE 112 for the call over the trunk line after setting the fax connected to the private switching network to the PABX mode. Then, in the data memory of the control unit 111, a service digit that enables the subscriber to catch the trunk line when the subscriber wants the trunk line call is stored. In this case, as an example of the service digit, 'digit 9' may be stored. Another example of a service digit could be to have a PAUSE key stored with a digit '9'. In this way, if the PAUSE key is added to digit number 9 and stored, dial digits corresponding to the telephone number of the CO line will be sent after a certain time elapses from the digit number 9 is transmitted until the line is stabilized. do.

The controller 111 checks whether the dial digit corresponding to the telephone number is input in step 202 of FIG. If it is confirmed that the dial digit is input, the controller 111 checks the dial digit first input in step 204 and temporarily stores the checked first dial digit in the data memory in step 206. Next, in step 208, the controller 111 checks whether the facsimile is set to the PABX mode. In this case, when the PABX mode is confirmed, the control unit 111 transmits the service digit stored in the data memory in step 210, and transmits the first dial digit temporarily stored in the data memory in step 212. As the service digit is sent in step 210, the CO line is caught. After sending the first dial digit, other dial digits corresponding to the remaining phone numbers are sent through steps 202, 204, and 212. In this way, if the facsimile connected to the private exchange network is set in advance in the PABX mode, even if the telephone number of the CO line is directly pressed, the call can be made through the CO line.

On the other hand, if the fax is directly connected to the trunk line switching network, it is not necessary to set the PABX mode. This is because you can make a call by pressing the telephone number directly without pressing a specific service digit. If the facsimile is not set to the PABX mode, the control unit 111 checks the dial digit first input in steps 202 and 204, and if it is the first dial digit, checks whether it is the PABX mode in step 208, and then in step 212. In step 202, step 204, and step 212, another dial digit corresponding to the remaining phone number is sent.

As described above, the present invention has an advantage of enabling a call with a CO line even when a subscriber presses a telephone number directly without pressing a specific service digit in a facsimile connected to a private switching network.

Meanwhile, 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. For example, in the embodiment of the present invention, the setting program of the PABX mode and the processing flow program thereof are stored in the memory of the facsimile itself so that the subscriber can select it. However, when the present invention is applied to a telephone, it can be modified to store the setting program of the PABX mode and the program of the processing flow in the memory of the private switching network so that the subscriber can receive the service. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

Claims (2)

A method for catching a trunk line at a terminal connected to a private switching network, comprising: a dial digit storing step of temporarily storing an initial dial digit when a dial digit corresponding to a telephone number through a trunk line is input; and temporarily storing the first dial digit. A service digit dispensing process of transmitting a service digit previously stored after being stored, and a series of subsequent steps of transmitting the first dial digit temporarily stored after the service digit is transmitted and following the first dial digit. And a dial digit sending process for sending a dial digit. 2. The method of claim 1, wherein the first dial digit that has been temporarily stored after a certain time elapses after the service digit is sent is sent.