KR100218882B1 - Sender's number notifying method of a switching system - Google Patents

Abstract

The present invention relates to an electronic exchange, wherein when an incoming signal is applied to an arbitrary subscriber station, the caller's telephone number of the electronic exchange which displays the telephone number of the calling party's terminal requesting connection to the call on the subscriber's terminal receiving the incoming signal. It is about a notification method.

The present invention detects the telephone number of the calling party terminal and displays the telephone number of the calling party terminal through the display means of the subscriber terminal to which the incoming signal is applied when a signal for requesting connection to a call to any subscriber terminal side is detected in the electronic exchange. Therefore, the formation of the call path is controlled according to the user's choice of the subscriber terminal so that the user can proactively cope with the prank call or the violent call that arrives in the middle of the night

Description

How to notify caller's telephone number of electronic exchange

1 is a block diagram illustrating a configuration of a subscriber board in a conventional electronic exchange.

2 is a block diagram of an apparatus for reporting a caller's telephone number in an electronic exchange according to the present invention.

3 is a block diagram illustrating the configuration of a subscriber board in the electronic switch of the present invention shown in FIG.

4 is a flow chart for realizing the caller's telephone number notification method in the present invention shown in FIG.

* Explanation of symbols for main parts of the drawings

A10-N10: Subscriber Port 1: Call Circuit Control

2 loop and dial signal detector 3 DTMF receiver

4: codec 5: ring generator

6 power supply unit 7 display unit

8 control unit 9 memory unit

10 bus controller 11 DTMF transmitter

100: subscriber board 200: trunk board

300: main processor 400: exchanger

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic exchange. Particularly, when an incoming signal is applied to an arbitrary subscriber station, the caller's telephone of the electronic exchange which displays the telephone number of the calling party terminal requesting connection to the call on the subscriber station receiving the incoming signal. Number notification method.

As shown in FIG. 1 of the accompanying drawings, a subscriber board in a conventional electronic switch has a plurality of subscriber ports (A10-N10) separated according to the subscriber's station number and number connected to the switch. It matches the impedance of the signal transmitted and received with the subscriber terminal such as telephone or modem connected to the stage and ring, and connects each circuit part to form a call according to the call request from any subscriber terminal. A call circuit control unit (1) for controlling and detecting on-hook and off-hook signals of a subscriber station connected to the switchboard, and from the subscriber station to the telephone number of the other party authorized to connect the call with a specific subscriber station. A loop and dial signal detecting unit (2) for detecting a dial signal for a telephone signal, and a dual tone multi frequency (DTMF) which is a dial signal applied from a caller terminal. The subconverter converts the subscriber's transmit audio analog signal applied from the DTMF receiver 3, the tip end and the ring end of the trunk line into a digital signal, and transmits it to the PCM Highway side according to a predetermined timing cycle, and sends the PCM Highway of the other exchange. It consists of a codec (4) for converting the received voice digital signal applied from the analog signal.

In addition, when a ringing signal connected to a plurality of subscriber ports (A10-N10) is detected through a trunk line occupied by the caller terminal, a predetermined ring signal is output to notify any subscriber terminal of the incoming signal. A ring generating section 5, a power supply section 6 for supplying predetermined operating power to each subscriber station side connected to the exchanger, a display section 7 for displaying a status as to whether or not the subscriber station is in use; A control unit 8 for controlling the overall operating state of the exchange, such as storage of call information transmitted and received and management of subscribers through the subscriber port, and information data for the state of the subscriber terminal connected to the exchange, the operating state of the exchange, and call connection. And a memory unit 9 for storing the light and the like, and a bus control unit 10 for controlling data transmitted and received via the data bus and the address bus.

In the above-described conventional switchboard, a device for detecting a telephone number of a calling party terminal that has received an incoming signal and displaying the received number on the subscriber terminal is not implemented. The user could not identify the caller, there was a problem that can not actively cope with prank calls and violent calls received in the middle of the night.

The present invention has been made in view of the above-described problems, and an object thereof is to detect a telephone number of a caller terminal applied to an arbitrary subscriber station to form a call path, and then through the display means of the subscriber terminal receiving an incoming signal. By displaying it, the terminal user can secure a selective call so as to proactively cope with prank calls and violent calls received at night.

In order to achieve the above object, a feature of the present invention is to provide a sender by analyzing an applied signal when a signal for requesting a specific subscriber station and call setup is applied according to a signaling method between stations in an electronic exchange. A first step of detecting a telephone number of the terminal, a second step of detecting whether the subscriber terminal required to set a call after executing the first step is a terminal configured to display a telephone number of the calling party terminal, and A third process of outputting the telephone number of the caller terminal detected in the first process to the subscriber terminal through the DTMF signal transmitting means and displaying the telephone number of the caller terminal in the detection of the second process; After the third process is executed, a predetermined ring is set to the subscriber station that is required to set up a call in the first process. It provides a fourth process caller number notification method for an electronic exchange comprising a call detecting the formation of a loop according to the off-hook transmission.

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

FIG. 2 is a block diagram of a caller's telephone number notification device in an electronic switch according to the present invention. FIG. 3 is a block diagram of a subscriber board in the electronic switch of the present invention shown in FIG. In the present invention shown in the flow chart for realizing the caller's telephone number notification method.

As can be seen in FIG. 2, the electronic exchange of the present invention comprises a subscriber board 100, a trunk board 200, and a main processor 300. The trunk board 200 includes a station between the exchange and the exchange. It performs the interface function through the system common bus and PCM highway that exchanges data and messages sent and received according to the signaling method between them. The main processor 300 is transmitted along with the call setup request message according to the inter-station signaling method from the switch 400 connected to the calling party terminal to which the incoming signal is applied and analyzes the telephone number of the authorized calling party terminal. It controls the overall operation of the exchange such as conversion. As shown in FIG. 3, the subscriber board 100 further includes a DTMF transmitter 11 at the above-described conventional subscriber ports A10-N10, wherein the DTMF transmitter 11 is provided from the subscriber terminal. The caller terminal outputs the DTMF signal to the subscriber terminal side with respect to the telephone number of the caller terminal authorized through the switch 400 connected to the caller terminal according to the set caller telephone number display function.

Referring to Figure 4 of the accompanying drawings, the operation of the present invention having the function as described above is as follows.

By dialing the telephone number of an arbitrary subscriber station, data of the caller terminal's telephone number along with the call setup message is transmitted from the exchange 400 of the calling party, which is connected to the calling party's terminal to which the incoming signal is applied, according to the signaling method between stations. When applied to the 200, the trunk board 200 converts the matching of the impedance and the protocol to be transmitted and received with respect to the applied signal, and then designates and applies the PCM highway to transmit data to the main processor 300 side. The main processor 300 analyzes the data authorized from the trunk board 200 to detect the telephone number of the calling terminal, and then connects any subscriber terminal designated by the calling terminal to the subscriber board 100 through the PCM highway. Apply a predetermined signal. At this time, the memory unit 9 of the subscriber board 100 stores the connection request data and the telephone number of the caller terminal as a call authorized through the PCM highway from the main processor 300, and the control unit 8 stores the PCM highway. Detects and analyzes a signal applied from the main processor 300 to determine whether the subscriber terminal to which the caller terminal is connected to the call path is a terminal set in the memory unit 9 so as to detect and display the telephone number of the caller terminal. It judges (step 101). In step 101, if the subscriber station requesting the caller terminal to access the call is the terminal set to display the telephone number of the caller terminal on the exchange side, the control unit 8 stores the telephone number of the caller terminal stored in the memory unit 9; Is read out and output to the subscriber terminal side to which the incoming signal is applied via the DTMF transmission unit 11 (step 102), and the telephone number of the caller terminal is displayed on the display means side of the subscriber terminal. Thereafter, when a predetermined time elapses, the controller 8 controls the ring generator 5 to set the number of rings to be output to the subscriber station designated by the calling party terminal, and then sends a predetermined ring signal to the subscriber terminal. It outputs (step 103, step 104). Then, it is detected whether or not the subscriber terminal receiving the incoming signal off-hooks the handset means (step 105). If it is detected that the call loop is formed by the off-hook of the handset means, the calling party and subscriber terminal to which the incoming signal is applied are detected. The call route is connected. Therefore, the codec 4 converts the digital voice signal of the caller terminal user, which is applied through the PCM highway, from the switch 400 to which the caller terminal is connected, into an analog voice signal, thereby connecting the call path through the call circuit controller 1. Sending to the subscriber terminal side, converts the analog transmission voice signal of the subscriber terminal user applied from the subscriber terminal through the call circuit control unit 1 into a digital signal and sends the caller terminal through the designated data and address bus of the bus control unit 10. Is applied to the connected exchange 400 side.

As described above, the present invention detects the telephone number of the calling party terminal when a signal for requesting connection to a call to any subscriber terminal side is detected in the electronic switchboard, and through the display means of the calling party terminal to which the incoming signal is applied. Since the display of the phone number of the subscriber terminal user's selection is controlled by the formation of the call path can be actively responding to the prank call or violent call incoming at night.

Claims (1)

An electronic switching system comprising: a first process of detecting a telephone number of a calling party terminal by analyzing an applied signal when a signal for requesting call establishment with a specific subscriber station is applied according to a signaling method between stations from any electronic switching station; A second step of detecting whether the subscriber terminal required to set a call after executing the first step is a terminal configured to display a phone number of the caller terminal, and the phone number of the caller terminal upon detection of the second step; If the terminal is set to display, the third process of outputting the telephone number of the caller terminal detected in the first process to the subscriber terminal through the DTMF signal transmission means to display on the display means, and the call in the first process after executing the third process And a fourth step of sending a predetermined ring to the subscriber terminal, which is required to be set, to detect the formation of a call loop according to the off-hook.