KR100201810B1 - Real time processing method of relay call signal for pbx having multi-stage process structur - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

It is a technology that processes in real time a signal originating from a relay station in a private exchange having a multi-layered processor structure.

2. Technical problem to be solved by the invention

After the CLD key is input, processing from the subscriber number and the access key to be finally input is performed without delay.

3. Summary of Solution to Invention

After the operator of the relay station inputs the CO line subscriber number generated at the station, the CLD key indicating the start of the extension number and the DTMF signal corresponding to the entered CO line subscriber number are continuously transmitted while the extension number is input. Call, and after calling the CO subscriber, the extension subscriber is called at the relay station without time delay, and after calling the extension subscriber, the transmission of the DTMF signal is stopped and the CO subscriber and the extension subscriber are connected to form a call path. do.

4. Important uses of the invention

Applied to the method of processing the outgoing call of the private exchange system.

Description

Real-Time Processing Method of Repeater Signaling in Private Switching System with Process Multi-Layer Structure

1 is a block diagram of a general private exchange system.

2a-2b is a trunk line start signal relay processing control flow chart of the relay station according to the present invention.

The present invention relates to a real-time processing method of the relay station outgoing signal in the electronic exchange, and more particularly, to a method of processing the outgoing signal generated from the relay station in a private exchange having a multi-layer processor structure.

1 is a block diagram of a general private exchange system,

A main control unit 10 for controlling call switching and controlling to provide various services;

A main memory 20 connected to the main control unit 10 to store programs and initial service data for performing basic calls and various functions;

Sub-control unit 30 for controlling the transmission and reception of the message under the control of the main controller 10,

A sub memory 40 connected to the sub controller 30 to temporarily store processing data during program execution;

A switching unit 50 for switching various tones and voice data under the control of the main controller 10;

The trunk circuit 60 forms a trunk line loop by using the trunk line as a scissor under the control of the sub-control unit 30, and interfaces the signals that are coming from the trunk line with the trunk line 60.

A tone supply circuit 70 which generates various tone signals under the control of the main controller 10 and outputs them to the switching unit 50;

An internal subscriber circuit 80 for supplying a voice current in a voice band to the subscriber and interfacing between the private switching systems;

The MFC transmitter / receiver 90 analyzing the DTMF (Dual Tone Mult Frequency) signal generated from the subscriber station or the relay station operator under the control of the sub-controller 30 to receive or transmit the corresponding data to the trunk circuit 60. Wow,

A plurality of relay bands (ATC1-ATCn) having a plurality of function keys and indicator lamps for call relaying between the CO line and the subscriber;

The control section of the main control unit 10 is configured with a relay station interface unit 100 for interfacing the signal with the relay station (ATC1-ATCn).

The plurality of relay stations ATC1-ATCn and the relay station interface unit 100 transmit and receive messages using a FIFO as a relay control unit having an independent processor and a memory. In addition, the MFC transmitter / receiver unit 30, the trunk circuit 60, and the subscriber circuit 80 are controlled by the sub-control unit 30 that communicates with the main controller 10 through a high speed SI0 channel, and searches and reports various events. Perform the service. For example, when an operator (ATC operator) makes a trunk line call using a relay station, the CO line selection ID and the CO line subscriber number are processed. ACT) and the trunk line occupancy request is reported to the trunk line interface circuit 100 and the main control unit 10 to the MFC transmission and reception unit 90 occupied and available to the main control unit 10 and the relay station interface unit 100 again. Occupation orders are issued. At this time, when 7 to 11 digits of the CO line subscriber's tone is heard, the DTMF signal corresponding to the CO line subscriber is transmitted to allow the operator and the external CO line subscriber to make a call and process the relay call.

In addition, the relay station of the exchange system can be used for basic call transmission / reception, extension-extension call relay function, trunk-extension and extension- trunk line call relay function, call guide function, registration and release of various special functions, special relay function and maintenance of private exchange. MMC functions for the service. Among them, the incoming call relay function for connecting a trunk line incoming call to an extension subscriber and the outgoing call relay function for calling a subscriber line to a specific extension subscriber are the most frequently performed tasks at the relay station.

However, if the operator keyed in an operation for calling an external subscriber in the relay station very quickly, the relay station → relay station interface unit 100 → main control unit 10 → relay station interface unit 100 → processing of the relay station. Due to a time delay factor required to pass the path, the digit transmission confirmation tone is heard from the MFC transmission and reception unit 90 only after about 2-3 seconds. That is, when an experienced operator quickly presses about 9-11 digits within 1-2 seconds, the digits are sent out to the local line through the trunk circuit 60 only after 3 seconds after keying in the last digit. In general, the outgoing call via the operator is a long distance call with a long distance, such as a long distance or an international call, and the 3 second time wasted in each call is a sensitive point when calculating the call time. Most of all, the delay of the operator's operation during high traffic times during which the call is congested causes a problem of poor service quality. In addition, the delay time of up to 3 seconds from the time of the last outgoing digit input is generated by the private exchange in order to provide the absolute delay time due to the vertical multi-stage structure of the message transmission path and the optimal digit reception condition at the local exchange when making a trunk line transmission. It is due to the automatic control of the sending time that is artificially inserted, and there is a problem that the operator has the limitation of service due to the operation conscious of this time. In general, a relay function using a transit station of a private exchange system is generally connected to a call of a calling party and a called party. For example, in case of relaying a trunk line received by a relay to a free extension subscriber in the premises, the caller side becomes a subscriber line and the receiving subscriber side becomes a station subscriber. On the contrary, when a specific extension subscriber makes an external call with the help of a relay station, the caller side becomes the specific station that first called the relay station and then the CO line selection ID and CO subscriber number (keyed by the operator). In case of a long distance call, the CO line subscriber, which is called by the area code), becomes the receiving party. Assuming that the external station subscriber is called in the reverse order and then connected to a specific extension (in this case, the caller side), the attendant operator will use an arbitrary key (called CLD key) to distinguish the subscriber's extension number from the subscriber's extension number. If you dial the subscriber line number which is usually 7-8 digits at a relatively high speed, you will not be able to immediately proceed with the CLD key. That is, the CLD key input means that the next digit to be input is the extension subscriber number to be the receiver. Therefore, it is assumed that all 7-11 digits entered first are sent to the external local exchange, but the processing delay is actually 2-3 seconds. Due to time, 3-4 digits of the trailing end results in releasing the MFC transmitter / receiver 90 even before being sent out.

Accordingly, an object of the present invention is to provide a real-time signal processing method of the relay station that can process the delay from the subscriber number and the access key to be finally input after the CLD key is input to solve the above problems. have.

Another object of the present invention is to provide a real-time signal processing method of a relay station which improves the relay relay call relay service by allowing the relay station to continuously transmit external digits until the relay station completely calls an extension subscriber in an exchange system having a processor multi-tier structure. In providing.

In the present invention for achieving the above object, in the real-time processing method of the relay station outgoing signal of the switching system having a multi-layered process structure, the operator of the relay station inputs the trunk line subscriber number generated at the station and then starts to input the extension number; Continuing to transmit a DTMF signal corresponding to the CO line subscriber number entered while inputting the CLD key indicating the extension number and the extension number, and calling the CO line subscriber and delaying the extension at the relay station after calling the CO line subscriber. And a step of stopping the DTMF signal transmission after calling the extension subscriber and forming a call path by connecting the subscriber station and the extension subscriber.

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

The block diagram of the system according to the present invention is the same as in FIG. 1, and the same reference numerals are used.

2a-2b is a flow chart of the trunk line starting signal relay processing control according to the present invention,

The process of calling external subscribers by continuously sending the digits input as a background concept in a method other than the half call method where the external subscriber number is entered at the relay station;

Calling the external subscriber at the relay station after calling the external subscriber;

The DTMF transmission is interrupted after the extension subscriber is called. The operation of the preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2A and 2B.

First, in step 101, the main control unit 10 checks whether the direct line selection key is input from the subscriber through the extension subscriber circuit 80, and if the direct line selection key is input, the process proceeds to step 102. In step 102, the main controller 10 performs a trunk line direct selection key processing module. However, if the direct line selection key is not input, the control proceeds to step 103 and the main control unit 10 checks whether the loop key for starting a call from the plurality of relay stations ACT1-ACTn is input through the relay station interface unit 100. If the loop key is input, go to step 104. In step 104, a call in progress is suspended using another loop key. In step 103, if the loop key is not input, the process proceeds to step 105 to check whether the release key is input. If the release key is input, the process proceeds to step 106. The main control unit 10 transmits the DTMF transceiver 90 through the sub-control unit 30. ) To terminate the DTMF signal transmission. Then, in step 107, hang on and complete the program. However, if the release key is not input in step 105, the process proceeds to step 108 to check whether the digit signal is input. If the digit signal is not input, the process proceeds to step 109 to perform another key processing module. When the digit signal is input in step 108, the controller 110 proceeds to step 110 to check whether the CO line selection code key is input. In step 111, if the leased line access code is input and the leased line access code is input, the process proceeds to step 112 to perform a leased line processing routine. If the dedicated line access code is not input in step 111, the process proceeds to step 113 to check whether the extension access code is input. If the extension access coat is not input, the process proceeds to step 114 to perform an error processing routine. However, if the extension access code is input in step 113, the process proceeds to step 115 to perform processing according to the digit signal input. After checking whether the extension digit input is completed in step 116, if it is not completed, the digital signal continues to be entered and processed. If the extension digit signal input is completed, the control proceeds to step 117 to control the DTMF transmitter / receiver 90 to transmit DTMF. Then, in step 118, enter the call mode to conduct a call.

However, if the CO line selection code key is not input in step 108, the flow proceeds to step 119 to input a CO line telephone number to transmit a DTMF signal through the DTMF transmission / reception unit 90. Then, in step 120, it is checked whether the national affairs have been abandoned, and if the national affairs have been abandoned, the process proceeds to step 121 and the program is terminated. However, if the abortion is not abandoned, the process proceeds to step 122 and checks whether the input of the phone number is completed. If the input of the phone number is completed, the process returns to step 119 to continue inputting the trunk line number to transmit the DTMF signal. If the CO line number input is completed, proceed to step 123 to check whether the CO line call is abandoned. If the CO line call is abandoned, go to step 121; if the CO line call is not abandoned, go to step 124 to check whether the CLD key signal is input. If the CLD key signal is not input, go to step 125 to perform another key input processing routine. However, if the CLD key signal is input, the process proceeds to step 126 to store the DTMF transmission number in the memory, and proceeds to step 127 to connect the call paths to perform a call and returns to step 101.

As described above, when the trunk line of the private exchange system is connected to a particular station, the delay is caused by the increase of the message delivery path and the error of the call connection when the relay station is directly connected without the user being aware of the delay. Providing the same service has the advantage of improving the function of the system.

Claims (1)

In the real-time processing method of the relay station outgoing signal of a private switching system having a multi-level process structure, the operator of the relay station inputs a subscriber line number generated at the station and then inputs the CLD key indicating the start of the extension number and the extension number. Continuously transmitting DTMF signals corresponding to the CO line subscriber number, calling a CO line subscriber, calling the CO line subscriber without delay in the relay station, and calling the extension subscriber. And stopping the transmission of the DTMF signal and connecting the CO line subscriber and the extension subscriber to form a call path.