KR920001684B1 - Voice service method in keyphones - Google Patents

Abstract

The method provides an audio guide function by connecting an automatic responding device to a keyphone system. The method includes the steps of: checking whether a calling is made to an automatic responding apparatus or to an intra-station subscriber line, or whether a calling is made from an inter-station line; checking whether the calling contains an absence message; recording the absence message; regenerating the absence message; checking whether the calling from an inter-station line wants to hear the recorded message or to talk with an intra-station subscriber; outputting the recorded message upon encountering a request for the recorded message; and recording the caller's message to a tape upon encountering a caller's desire to talk to the subscriber.

Description

Voice guidance service method of key phone system

1 is a connection diagram of the voice guidance device of the key phone system.

2 is a system block diagram for carrying out the present invention.

3 is a tape form for storing the OGM and ICM of the voice guidance device.

4 is a flow chart of the present invention.

* Explanation of symbols for main parts of the drawings

10 main unit 11: first central processing unit

12: Romans 13: Ram

14: first interface circuit 15: main subscriber circuit

16: switching circuit 17: trunk circuit

18: 1st DTMF Receiver 19: DTMF Generator

20: ring generator 30: automatic answering device

31 ring detector 32: 2nd DTMF receiver

33: second central processing unit 34: second interface

35: deck

The present invention relates to a key phone system, and more particularly, to a method capable of implementing a voice guidance function by connecting an answering machine to the key phone system.

In general, if a call is received while the subscriber is absent in the keyphone system, the originating subscriber could not know exactly why the subscriber is absent. In addition to the hardware element, an automatic response (voice mail) was performed, but the system price was increased due to the RAM price, the voice guidance service was limited to several seconds due to the memory capacity, and there was a problem that the sound quality was not good.

Accordingly, an object of the present invention is to provide a method for implementing an auto answering function of all stations by connecting an auto answering device to a port of an extension of a key phone system.

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

FIG. 1 shows a state in which an answering machine 30 is connected to one port of the keyphone system main unit 10 in the same manner as the subset 50 to perform an auto answering function for all stations. have.

FIG. 2 is a concrete block diagram of FIG. 1, which includes a ROM 12 incorporating programs and fixed service data for performing overall functions of the key phone system and the first central processing unit 11 and the system, and each service. RAM 30 used for class, system mode and program and data processing area for temporarily storing processed data, and a first for smoothly inputting / outputting control data between the first central processing unit 11 and the circuits described below. A main subscriber circuit 15 connected to the subset 50 and the answering machine 30 via the interface circuit 14 and the transmission lines L1 to LN for transmitting voice and data; Trunk circuit 16, which is connected to a trunk line, compensates for trunk line ring detection, pulse transmission, overvoltage protection, switching loss, and the like, and forms a communication path between the main subscriber circuit 15 and the trunk circuit 15. A switching circuit 17, A first DTMF receiver 18 for receiving and converting a DTMF signal generated from the subset 50 into a digital signal, a DTMF transmitter 19 for converting a dial signal or data into a DTMF signal and outputting the ring signal, and generating a ring signal. The portion consisting of the ring generator 20 becomes the main device 10 of the key phone system.

In addition, the ring detection circuit 31 connected to any port to which a general telephone of the main subscriber circuit 15 can be connected detects a ring signal to be input, and the DTMF tone input through the main subscriber circuit 15 is inspected. A second DTMF receiver 32, a second central processing unit 33 for determining the type of the DTMF tone and controlling the operation of the answering machine 30, and reading or recording the contents of the tape. Line interface for relaying deck 35 and second DTMF receiver with main subscriber circuit 15 of host 10 under control of second central processing unit 33 The part constituted by 34 corresponds to the answering machine 30.

3 is an exemplary diagram in the form of a tape of an Incoming Message (ICM) and an Outgoing Message (OCM) according to the present invention.

FIG. 4 is a flow chart of the present invention, which includes a first step of checking whether an extension subscriber calls an answering machine or another extension subscriber or a call request from a trunk line, and in the first step, the extension subscriber calls the answering machine. The second step of checking whether the absence message change request or the message reproduction request received during the absence is placed, and when the absence message change request is made in the second step, the subscriber inserts the OGM tape into the missed message recording interval of the extension subscriber. A third process of recording a new missed message of the subscriber and an incoming message of the calling subscriber of the OGM tape or ICM tape depending on whether the extension subscriber calling on the message playback request received during the absence of the third party is an operator; A fourth step of reproducing and transmitting a message received and recorded while not in the recording section; A fifth step of checking whether the call requester of the trunk line side wants to listen to the message recorded on the ICM tape or requests a call with an extension subscriber when the call request is received from the CO line in the first step; and the fifth step In the case where the user wants to listen to the message recorded on the ICM tape, the sixth process of reproducing and transmitting the ICM message in the ICM tape requested by the trunk line call requester to the trunk line, and in the fifth process, calls for the extension subscriber. If the extension subscriber calls another extension subscriber in the first step, depending on whether the called extension subscriber is an operator or not, it plays the missed message on the ICM tape and sends it to the caller or calling subscriber. Next, the message inputted by the CO line call requester or the calling party subscriber is inputted to the ICM message. The seventh step is to record in the receiving message recording section of the extension subscriber called during the tape or the receiving message recording section of the OGM tape.

Accordingly, the present invention will be described in detail with reference to FIGS. 2-4.

The present invention should be able to use a general telephone, and the maximum capacity by the software without the hardware change of the existing key-phone system by mounting the answering machine (extended terminal 1 terminal) on the market in the keyphone system with the maximum extension of 16 lines or less 15 Enable the subscriber's voice mail.

The automatic answering function of a typical keyphone system could be realized by adding hardware to the keyphone main system. However, the present invention can perform the auto-answer function simply by connecting an answering machine to a terminal to which a general telephone can be connected, among the terminals connecting the extension in the main system as shown in FIG.

The answering machine that can be used in the present invention should be remotely controlled functions such as fast forward, rewind, play, recording, OGM (out going message) tape, ICM (incoming message). Since the message time that can be stored varies depending on the tape length, longer tape lengths can leave messages longer.

The schematic operation is that when the subset 50 dials and selects the answering machine 30, the second central processing unit 33 of the answering machine 30 receives the ring detection signal when the ring detecting signal is received from the ring detector 31. 2DTMF receiver 32 is attached to the main subscriber circuit.

At this time, when the deck control dial is pressed in the subset 50, the second central processing unit 33 analyzes the dial to operate the deck to play or record the recording. In addition, if a ring enters through the trunk circuit 17 and the response is not received for a certain time (storing time data in RAM) or when another subset 50 is called in the subset 50, the response is not received for a certain time. The first central processing unit 11 sends a ring control DTMF signal after sending a ring to the answering machine that is connected to the main subscriber circuit, and the second central processing unit 33 analyzes the signal to control the deck to record or play back. do.

Message storage intervals allocated per station of OGM tape and ICM tape will be described in detail with reference to FIG.

First, the ICM tape can leave multiple messages with a length of 1 minute and 55 seconds to accept incoming messages for each station. The interval of 5 seconds between stations is to prevent the messages from mixing up. The message recording time (1 minute 55 seconds) plus the message interval 5 seconds add up to 2 minutes. The total number of tapes in mulberrymea is 30 minutes, so if you divide it into 2 minutes, you can use 15 stations.

Each station can only receive messages for 1 minute and 55 seconds, but the operator can receive messages for 15 minutes, just like the operator ICM portion of the OGM tape. The reason why many tape sections are assigned to the operator is that if the operator sets the operator-only message mode to MMC, all the subscriber subscriber calls are recorded in the operator's incoming message recording section.

The OGM tape consists of the Operator ICM recording section mentioned above and each station of the OGM recording section. Each station's missed message recording period (0GM) is limited to 55 seconds, and the interval between OGM is 5 seconds as above.

Combining FIG. 4 with FIG. 2, a method of recording a message for a caller and a method for each extension to listen to a message left by a caller are set. In order to record a message to be sent, the subscriber first answers the call through the subset 50 and the main subscriber circuit 15, the first central processing unit 11, the switch circuit 16, and the main subscriber circuit 15. (30). (Step 400) If the answering machine 30 is selected (step 401), it is determined by the digit that the extension presses whether to record the message to be sent or to listen to the saved message to the corresponding station. (Steps 405,406)

When recording a message to be sent in step 406, the first central processing unit 11 controls the second central processing unit 33 to rotate the tape to the OGM tape position of the corresponding station (step 411). Recording starts at the same time (step 412). If the extension hangs up or passes 55 seconds (step 414), stop recording and rotate the OGM tape to the start position (step 415).

In step 405, if the digit is pressed to listen to the received message, the station listens to the received message of the OGM tape if the operator is the operator, and if the operator is not the operator, the station receives the received message of the station (steps 416-424). For 1 minute 55 seconds if not. If the extension breaks in between, return the tape to its original position and stop operation. This section explains how to store OGM and save messages for leaving.

If a call is received from outside (external key system) or if one station is selected as another station, if the ring is not answered more than 3 times (can be changed to MMC), the machine enters the auto answer mode (steps 402-404 and 408). If the operator sets the operator answering mode (MMC), all stations that ring more than 3 times will enter the operator answering mode.9 429,445 If the CO line ring is distinguished, the CO line relay is turned on and the operator records the recorded contents. (Step 431) After all the contents are transmitted, the OGM tape is turned to the operator reception message recording section and the recording preparation is started. Step 439) Before starting to prepare the recording, check whether the recorded contents can be updated or not. Turn it to the first position and stop it.

If an update is possible, a confirmation tone is heard and recording starts (step 440). If the time elapsed (915 minutes) when the recording time has elapsed or if the other party ends, the recording stops immediately and the tape is returned to the initial position (steps 441-443). In step 429 and step 445, if it is not the operator-only auto answer mode, it asks whether it is the auto answer mode by extension and exits the program if the mode does not perform the auto answer function. Perform the operations in steps 430-437.

At this time, the recording time is 1 minute 55 seconds and if the other party hangs up before 1 minute 55 seconds elapses, the recording stops and returns to the first position. The case where the trunk line call requester requests the received message will be described.

The first central processing apparatus 11 checks whether there is a first DTMF receiver 18 that is not used when the ring detection signal is received from the trunk circuit 17 (step 404), and then uses the unused first DTMF receiver 18 (step 407). If there is a 1DTMF receiver 18, the first DTMF receiver 18 is connected to a ring-detected trunk line (step 409) and an extension number is checked through the first DTMF receiver 18 (step 410).

When the extension number is connected in step 410, the first central processing apparatus 11 performs steps 425-428, which are the same operation flow as steps 421-424 of steps 416-424.

In order to perform the above functions, some things must first be set up with man-machine control (MMC).

First, you need to specify whether to use station 1 port as a regular telephone or an answering machine. Key-phone systems cannot distinguish between regular telephones and answering machines.

Secondly, the remote control code is heard for each answering machine. However, the remote control code of an answering machine should have at least fast, forwind, rewind, stop and play functions. The key phone system stores these codes in a buffer and controls the answering machine.

Third, specify the number of rings to enter auto answer mode.

Fourth, specify the length of the tape. Using a 30- or 90-minute tape with the default tape length, you can press 5 minutes and 55 seconds for 1 minute and 55 seconds allocated per station, and the operator can use 75 minutes.

Finally, specify whether to update the already recorded ICM. If you listen to ICM once, you can specify whether you want to update automatically or if you can specify MMC.

The flowchart described above will be described in a case-by-case manner as follows.

The extension leaves the OGM and the station picks up the receiver and calls the port where the answering machine is attached. When the ring is generated from the ring generating circuit through the main subscriber circuit to the ring inspection circuit, the ring inspection circuit checks the ring and connects the DTMF receiver to the main subscriber circuit line. The first central processing unit analyzes the answering machine coutrol data contained in the RAM, controls the DTMF generator, sends the DTMF tone to L1, and the second central processing unit analyzes it to control the deck to make a recording state. Start recording at this point. The fixed station listens to the ICM is the same as the process of 1) leaving the OGM, but after the answering machine coutrol data in the RAM is changed (by the digit pressed by the station) in the first central processing unit, the deck is regenerated. Play the ICM.

The process of listening to OGM of another station: If you make a call from subset1 to subset2 and there is no response while the ring rings more than 3 times, the first central processing unit gives the ring to the ring test circuit through the ring generating circuit and stores it in RAM. Analyzes the answering control data, activates the DTMF generator, moves the tape on the deck to the OGM position of station 2, and sends the playback control signal to play.

Station and CO line listen to OGM and leave ICM: When CO line ring comes in, it detects ring through trunk circuit. If no station answers until more than three rings, the receiver is connected to the trunk line via a switching circuit. If the DTMF tone does not come within 3 seconds, the incoming CO line controls the OGM of the corresponding station as in the third case above and sends the OGM. After exporting for 55 seconds, the first central processing unit controls the deck, turns it to the position of the ICM tape of the station, and records it. Listening to ICM at CO Line: After attaching the receiver in 4) above, if a specific DTMF tone (extension number) comes within 3 seconds, the first central processing unit analyzes the data of the receiver and transmits the ICM tape of the corresponding station through the DTMF generator. Control deck by position and play. For reference, the answering machine control data must be saved to MMC in advance because the control data is different for each answering model.

As described above, the present invention has the advantage that the function can be diversified without changing the hardware in the key phone system, and the service time can be allocated to the answering machine more than if the hardware is realized.

Claims (1)

A voice guidance service method of a key phone system, comprising: a first step of checking whether an extension subscriber calls an answering machine or another extension subscriber or whether a call request is received from a trunk line; A second step of checking whether the absence message change request or the message reproduction request received during the absence of the call is placed; and when the absence message change request is made in the second step, the OGM tape is placed in the missed message recording section of the subscriber who has called the OGM tape. The third step of recording the new subscriber's missed message and the extension subscriber of the calling subscriber of the OGM tape or ICM tape depending on whether the extension subscriber calling at the time of the message reproduction request received during the absence of the extension is an operator. Receive and record the message received and missed during the reception message recording section. A fourth step of checking whether or not the call requester wants to listen to the message recorded on the ICM tape or requests a call with an extension subscriber when the call request is received from the CO line in the first step; In the fifth process, if the user wants to listen to the message recorded on the ICM tape, the sixth process of reproducing the ICM message in the ICM tape requested by the CO line call requester and sending it to the CO line, and the fifth step with the extension subscriber in the fifth process. If a call is requested or if the extension subscriber calls another extension subscriber in the first step, depending on whether the called extension operator is an operator or not, the corresponding caller or calling party is called by playing the missed message on the ICM tape. After the call is sent to the subscriber, the call requestor or the subscriber who is calling And a seventh step of recording the message in the received message recording section of the called station of the ICM tape or the receiving message recording section of the OGM tape.

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