KR920000086B1 - Automatically responding method in switchboard system - Google Patents

Abstract

The communication loop for speaker phone is formed to meet the call when a keyphone subset subscriber sets auto answering program and the communication path is released automatically at the end of the communication. The method co mprises the steps: (A) setting auto answering bit of subset port state table; (B) checking the busy state of the called which is set by auto answering function; (C) sending busy tone to a caller when the loop is occupied and otherwise ring tone and speaker phone enable signal to the called; (D) assigning communication to the calld, connecting to the caller and checking that the called is free; (E) releasing the channel of the called and sending busy tone to the caller when the called is hang on, and other wise checking that the caller is busy; and (F) releasing the channel of the called, and releasing the loop when the caller is hang on, and otherwise returningto a step (D).

Description

Automatically Answering Extension Calls in Switching Systems Using a Keyphone Subset

1 is a block diagram of an exchange system that accommodates a key subset subscriber.

2 is a flow chart of a conventional basic extension call.

3 is a flowchart of a method for automatically answering an extension call according to the present invention.

* Explanation of symbols for the main parts of the drawings

1, 20: central processing unit 2, 21: ROM

3, 22: transmitting and receiving device 4a, 4b, 4c: subset interface circuit

7: data line 10: main device

23: data transmission and reception unit 24: key matrix and LED matrix

25: display and key scanning circuit 26: LCD

27: voice control switch unit 28: combo codec

29: handset 30: toneringer

31: speaker 32: speakerphone

33: microphone 40: keyphone subset

The present invention relates to a call method of an exchange system using a keyphone subset, and in particular, by a program of a keyphone subset subscriber, a caller automatically forms a call path when a caller of the caller subset of the keyphone subset is dialed. It is about an automatic response method.

FIG. 1 is a block diagram of an exchange system and a keyphone subset capable of accommodating a key subset subscriber, which are largely referred to as the main device 10 and a keyphone subset (hereinafter referred to as “subset”) 40 (50). ).

The main device 10 is a well-known block diagram, which accesses the ROM 1, the RAM 1, and controls the time switch 3 in the central processing unit 1, and a key subset described later. 40 transmits and receives various data through the subset interface circuits 4a, 4b, and 4c and the transceivers 5 and 6, respectively.

In the subset 40, there is a central processing unit 20 to access the ROM (ROM2) 21 and the RAM (RAM2) 22, and data transmission with the main unit 10 is performed by the data transmission / reception unit 23. The control data and display data from the main device 10 are sent to the corresponding circuit for processing, and the key data inputted from the subset key matrix 24 is also sent to the main device 10 through the data transmitter 23. .

In addition, the central processing unit 20 of the subset 40 controls the voice control switch 27 to always allocate the channel of the combo codec 28, and if the handset 29 is placed, the speaker 32 and the microphone ( 33) to the ON state, and performs the role of connecting the speaker 32, the microphone 33 and the tone ring to the tone ringer 30 in accordance with the data of the main device (10).

2 is a flow chart of a conventional basic extension call.

First, a conventional internal call state will be described with reference to the circuit of FIG. 1 and the flowchart of FIG. When the user presses a speaker key in the key matrix and the LED matrix 24 in the subset 40 as shown in FIG. 2 in the hook-on state, the key data is transferred to the display and key scanning circuit 25. Is entered. At this time, the central processing unit (hereinafter referred to as "CPU") (20) the key data via the display and the key scanning circuit 25, the key data through the data transmission and reception unit 23 through the main unit (10) Send to).

In the subset interface circuit 4a of the main device 10, the key data received from the subset 40 is input to the CPU 1 through the transceivers 5 and 6. The CPU 1 analyzes the key data of the subset 40 received from the transceiver 5 or 6 and if it is determined to be a speaker key, controls the time switch 3 to receive channels of the subset 40. The beep is connected to and sends LCD display data and LED ON data to the subset 40 via the transceiver 5, 6 and the subset interface circuit 4a. The CPU 20 of the subset 40 analyzes the transmission data of the main device 10 received through the data transmission / reception unit 23 and controls the LCD-related data by the display circuit and the key scanning circuit 25 to control the LCD 26. The status data is displayed on the display panel, and the LED related data is inputted to the key matrix and the LED matrix 24 to display the speaker key “on” status.

At this time, since the handset is placed, the CPU 20 controls the voice control switch 27 to operate the speaker 32 and the microphone 33. The subset 40 user then hears the dial tone through the speaker.

If the subscriber (user) of the subset 40 that has received such a dial tone dials to call the subscriber of the subset 50 by using the dial key of the key matrix and the LED matrix 24, this means that the above-mentioned path is lost. It is transmitted to the CPU 1 of the host device 10 through.

The CPU 1 of the main device 10 analyzes the input dial and stores the toning data, the calling party number LCD display data and the associated key LED control data through the interface circuit 4b of the subset 50 of the called subscriber. Is sent to the calling party subset 50, since the subset 50 of the called party also has the same internal configuration as the subset 40, and the same reference numerals as the internal configuration of the subset 40 are used.

At this time, the CPU 20 of the called subscriber subset 50 analyzes the data received from the data transmission / receiving shares 23 so that the LCD-related data is displayed and the key scanning circuit 25 displays the data on the LCD 26. The LED-related data is input to the key matrix and the LED matrix circuit 24 to operate the display, and the tone ring data is controlled by the voice control switch unit 27 to operate the tone ringer. The called subscriber subset 50 then rings and learns that someone is calling itself.

At this time, if the speaker key of the key matrix and the LED matrix circuit 24 is pressed to answer from the ringing subscriber subset 50 ringing, the tone ringing “OFF” data is avoided by the CPU 10 of the main unit 10. Is sent to the calling party subset 50. The CPU 20 of the subset 50 causes the voice control switch unit 27 to turn off the tone ringer in response to the tone ring “off” data. At this time, the speaker 32 and the microphone 33 of the caller subset 40 are in the "on" state, so that the speaker 32 and the microphone 33 are mutually connected by using the speaker 32 and the microphone 33 of the called subset 50. .

If, in response to (or calling), the subset 50 picks up the handset instead of the speaker key, it also detects the subset 50's display and key scanning circuit 25 and sends the data to the host 10. The CPU 20 of the subset 50 causes the voice control switch unit 27 to connect a voice signal to the handset 29, and " off " the speaker 32 and the microphone 33 to turn the handset 29 on. To be interactive.

However, in the conventional basic extension call as described above, when the caller calls the called party, the called party must answer to make the call, and the called party can perform the original work only after passing the call termination step.

In addition, in the related art, when the called party answers the call by pressing the speaker key, the call path is restored only when the call is terminated by pressing the speaker key.

Accordingly, an object of the present invention is to provide a telephone line of a speakerphone function by automatically answering a call from a caller with a keyphone subset subscriber having an auto answer set in an exchange system using the keyphone subset as an extension. The present invention provides an automatic answering extension call method that allows a caller to free a call path of a called party having an automatic answer set when the call ends.

3 is a flowchart according to the present invention, in which the central processing unit of the main unit sets the auto-response bit in the subset port status table in the RAM area when setting the auto-reply of the key-phone subset subscriber, and any key-phone sub. A second step of retrieving whether the called party is busy when the set subscriber calls a subset of key phones with an auto answer set; and when the retrieval of the second step is busy, the caller is sent to the caller and is in a free state. A third step of transmitting ring data to the called subscriber's keyphone subset for a predetermined time and transmitting speakerphone enable data; assigning a call channel of the called subscriber and switching the caller and the call path to form a call path; A fourth step of retrieving whether the called party is in a call termination state; and repeating the callee's interface channel at the end of the call in the search of the fourth step. A fifth step of retrieving the caller from the caller and retrieving whether the caller ends the call when the caller does not finish the call; and recovering the interface channel which is the caller at the end of the call in the fifth step. And a sixth step of blocking the call path and re-retrieving the call termination state of the fourth step when not terminated.

An operation example of the present invention will be described below with reference to the operation of FIG.

In the system operation state, the CPU 1 of the main unit 10 scans the data inputs from each subset interface circuit 4a, 4b, 4c through the transceivers 5, 6 at predetermined intervals to generate the first data. FIG. 3 shows whether the auto-response key of the subset subscribers 40 and 50 is pressed in step 3a.

When the keyphone subset subscriber 40 presses the auto answer key in the key matrix and the LED matrix 24 in the above state, the CPU 20 of the subset 40 displays the key and the input of the auto answer key. The data is input through the scanning circuit 25 and the data is transmitted to the host device 10 through the data transmission / reception unit 23 in step 3b. At this time, the CPU 1 of the main device 10 analyzes the data input through the subset interface circuit 4a in the process of FIG. The CPU 1 of the host device 10 determined to be the auto-answer key sets the auto-response bit of the subset 40 in the subset state table in the RAM 3 memory and returns to the subset 40 in step 3d. Auto-response Indication LED Sends “ON” data. In step 3d, the CPU 1 of the main device 10 that transmits the LED “on” data searches whether the other subscriber calls the subscriber with the auto response set in step 3e.

The CPU 20 of the subset 40 for inputting the auto-response indication LED “on” data sent out from the main device 10 and input through the data transmission / reception unit 23 is provided via the display and key scanning circuit 25. Input to the key matrix and the LED matrix 24 to turn on the LED indicating that the auto-response has been set.

Then, when another subset subscriber 50 calls the auto-responder set, for example, the subset 40, the CPU 1 of the main apparatus 10 causes the subset 40 to set the auto-response in step 3e. Determines that is called. The CPU 1 of the main device 10, which has determined that the subset 40 has been called in step 3e, performs a subset writer with the auto-response bit set in the subset status table of the called party in the RAM 3 area. In step 3f, it is checked whether 40 is in a call. If it is determined in step 3f that the called party, that is, the subset 40 is in a call, the CPU 1 of the host device 10 controls the TSW 3 in step 3g to call the busy tone port as the caller subset 50. Connect to the receiving channel to make the bell sound. If the called party is in the free state, the CPU 1 of the host device 10 sends the toneing data, LCD and LED related data to the subset 40 of calledees for one second, and sends the speaker “on” data in step 3h. do.

The CPU 20 of the subset 40, which is the called side for inputting data transmitted by the CPU 1 of the main apparatus 10 through the above-described path in step 3h, controls the voice control switch unit 27. Ringing for 1 second from the tone linker 30, and controlling the display and key scanning circuit to display the ring (content indicating that the call came) on the LCD 25, and to associate the key matrix and the LED matrix 24 with each other. Control the LEDs.

In addition, the CPU 20 of the subset 40 controls the speaker 32 and the microphone 33 to the "on" state to enable the call.

On the other hand, the CPU 1 of the main unit 10 performing the process 3h controls the TWS 3 in process 3i to allocate a channel of the interface circuit 4a of the called subset 40, and the TWS 3 ) Connects the channels of the calling subset subscriber 50 and the called subset 40 to both to form a mutual call. Therefore, when any subset 50 calls the subset 40 which has set the auto-response, the CPU 1 of the main apparatus 10 sets the subset which has set the auto-answer with the call subset 50 ( 40 automatically connects the call paths, and activates the speakerphone function of the subset 40 that has set the auto-answer to make a call with each other.

The CPU 1 of the main apparatus 10 which has performed the third i process searches whether the callee or the caller has terminated the call in the third j and third l processes.

When either the call subset 50 or the called subset 40 ends the call between the call subset 50 and the subset 40 that has set the auto-answer over the established call path, the corresponding call is completed. The subset detects this and sends it to the CPU 1 of the main device 10. For example, when the called party ends the call, the CPU 2 of the subset 40 transmits the data to / from the CPU 2 of the main apparatus 10 through the data transmission / reception unit 23.

If the CPU 1 of the host device 10 determines that the caller terminated the call by the above operation in step 3j, the CPU 1 of the host device 10 transmits to the called subset 40 in step 3k. It recovers the transmit / receive channel of the connected interface circuit 4a and transmits the LCD and LED erase data to the subset 40. At this time, the CPU 20 of the subset 40 that receives the data sent from the main device 10 controls the display and the key scanning circuit 25 so as to be related on the LCD 26 and the key matrix and the LED matrix 24. Clear (off) the LCD and LED indications.

Meanwhile, the CPU 1 of the main apparatus 10 performing the process of FIG. 3 and FIG. 3K performs the process of FIG. 3 and performs the process of FIG. 3G to transmit a call sound to the caller subset 50.

If the called party has not terminated in step 3i, the CPU 1 of the host device 10 searches whether the caller terminated the call in step 3l.

If the caller has terminated the call in step 3l, the CPU 1 of the host device 10 controls the TSW 3 in step 3m and is connected to the call subset 50 and the called subset 40. Restores the channels of the subset interface circuits 4a and 4b and sends LCD and LED erase data to the calling subset 50 and the called subset 40 through the subset interface circuits 4a and 4b. .

The CPU 20 in the subset 40, 50 of the caller and the called party then clears the associated LCD and LED and returns to its original state. In addition, the CPU 1 of the main device 10 which has performed the 3m process controls the TSW 3 at 3n to recover the port call path between the caller and the called party, thereby disconnecting the call path.

Therefore, when either of the called subset 40 having set the auto-answer and the calling subset 50 making the call ends the call during the mutual call, the called subset 40 set the auto-answer is automatically answered to the call. ) Is automatically restored by the control of the main apparatus 10.

As described above, in the present invention, when the called party sets up the auto answering function in an extension call, the called party automatically calls the speaker with the microphone without requiring any action on answering and ending the call. By having the convenience of recovering a call, it is possible to make the system high quality and at the same time, to facilitate the user's use.

Claims (1)

An auto answering method of an extension call of an exchange system using a keyphone subset having at least one subset having a speakerphone function and having an assertion for making an extension call to an extension. A first step (3a, 3b, 3c) in which the central processing unit of the starting device sets the auto-response bits in the subset port status table in the RAM area, and the keyphone subset in which any keyphone subset subscriber has set an auto-response; In the second step (3e, 3f) to search whether the called party is busy when calling, and when a subset of the called keyphones of the search result of the second step (3e, 3f) is busy, the busy tone is transmitted to the caller. And a third step (3f) of transmitting ring data to a keyphone subset of called subscribers for a predetermined time and transmitting speakerphone enable data when the subscriber is in a free state, and a key of the called subscriber. A fourth step (3i, 3j) of allocating a subset of call channels and switching a call path with a caller subscriber's keyphone subset to form a call path, and searching whether the called keyphone subset is in a call termination state; When it is determined in the search of the fourth step (3i, 3j) that the called keyphone subset is terminated at the end of the call, the call channel is restored to the call keyphone subset while the call channel is restored while the call channel of the called subset is restored. A call channel of the called keyphone subset when the calling keyphone subset is terminated in the search of the fifth step (3k, 3g, 3l) and the search of the fifth step (3k, 3g, 3l) for searching whether the subset is terminated. And a sixth step (3l, 3m, 3n) to cut off the call path between the calling subset and the called keyphone subset, and re-retrieve the call termination state of the fourth step (3i, 3j) when not finished. Characterized by the above.

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