KR920006140B1 - A method to detect a message in telephone system - Google Patents

Abstract

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Description

How to check whether the answering machine receives a message

1 is a system block diagram to which the present invention is applied.

2 is a block diagram of an answering machine in FIG.

3 is a flow chart of the present invention.

* Explanation of symbols for the main parts of the drawings

10: line loop control unit 20: line interface unit

30: first switch unit 40: DTMR receiving unit

50: central processing unit 60: ring detection unit

70: deck portion 80: LED

90: key input unit 100: AGC

110: second amplifier 120: first amplifier

130: second switch unit 140: speaker

150: message sent 160: message received

170: microphone 300: voice processing unit

The present invention relates to a remote confirmation method for an answering machine, and more particularly to a method for confirming the presence or absence of a pre-recorded recipient message for answering the answer without paying a call charge at a remote location. In general, the owner of the answering machine can remotely check the presence or absence of an incoming message for an incoming call. In the conventional case, in order to check an incoming message (ICM) of an answering machine at an external remote location, the answering machine was remotely controlled by an external telephone to directly hear and confirm a state recorded on an incoming message tape. For example, as shown in FIG. 1, when a ring signal is transmitted to an answering machine (D) through a public switched network (C) using a telephone (A) of an external remote site, the ring selected by the user regardless of the reception message When the number of rings rings, the answering machine sends an outgoing message (OCM) recorded by the user in the form of leaving a message to the other party because he is absent and uses the DTMF signal during the sending of the outgoing message to remote control. Check the contents of the received message. However, in the above method, regardless of the presence or absence of an incoming message, it is possible to confirm that there is no received message or received message only by remotely controlling the answering machine and directly listening to the recorded state on the incoming message tape. There was a downside to paying the call.

Therefore, in order to solve this uneconomical problem, if only the presence or absence of an incoming message can be checked in advance without the remote control of the answering machine, the user can remotely control the answering machine to listen to the recorded message only when there is an incoming message. In the absence of an incoming message, the idea was that the answering machine would not be remotely controlled and would not have to waste calls.

Accordingly, an object of the present invention is to provide a method for remotely checking the presence or absence of an automatically recorded recorded message without paying a call charge.

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

2 is a block diagram of an automatic response device to which the present invention is applied, and a central processing unit 5 for controlling the operation of each part of the system by a predetermined control program and data stored for performing the automatic response function, and the control device. The control unit 50 receives the DTME signal from the transmission circuit, a deck circuit unit 70 comprising a head unit, a motor unit, and a solenoid for recording and reading an incoming voice signal and reading an outgoing voice signal. DTME receiving unit 40 for transmitting to the device 50, the transmission message storage unit 150 for storing the transmission message for the voice guidance to the sender, and the receiving message storage unit for receiving and storing a message from the talker ( 160, a second switching unit 130 for selecting whether to record or play a received or sent message under the control of the central processing unit 50, and connected to a transmission line to detect a ring signal. And a ring detection unit 60 that counts the number of rings and outputs the outgoing voice signal (outgoing message) to the transmission line under the control of the central processing unit 50 and the ring detection unit 60 for outputting to the central processing unit 50. Line interface unit 20 for transmitting the incoming voice signal (receive message) and tone signal input from the first switch unit 30 and the DTME receiver 40 described later, and the central processing unit 50 Replay messages or transmission lines read from the transmission and reception message storage units 150 and 160 through the line loop controller 10 for connecting the line interface unit 20 to the transmission line under control, and the second switch unit 130. An automatic gain control (AGC) unit 100 for automatically controlling gain so that an output is substantially constant by inputting an incoming voice signal input from a furnace, and amplifying the automatic gain controlled playback message to a speaker 140 First amplifier to say And amplifying the automatic gain-controlled playback message to a remote telephone through a public switched network through a transmission line or amplifying the automatic gain-controlled incoming voice signal to the second switch unit 30. The voice processing unit 300 including the second amplifying unit 110 for outputting the recording to the received message storage unit 160 through the control unit and the central processing unit 50 and the voice processing unit 300 and the line interface Various data and commands to the first switch unit 30 for switching voice signals between the units 20, the microphone 170 connected to the first switch unit 30, and the central processing unit 50. Key input unit 90 for inputting the, and the LED unit 80 for displaying the various states of the answering machine under the control of the central processing unit (50).

3 is a flowchart of the present invention.

The present invention will be described in detail based on the above configuration. In step (2a), the central processing unit (50) detects the ring from the ring detection unit (60) and checks whether there is a received message in step (2b). The presence or absence of the received message can be confirmed by storing the received message in its own RAM every time the central processing unit 50 records the recorded message. When it is determined that there is a reception message in step 2c, the process proceeds to step 2d to count the number of rings detected by the ring detection unit 60. After performing step (2d), the process proceeds to step (2e) and checks whether the counted ring number is N times. If it is confirmed that the ring N is ringed as a result of the check, the process proceeds to step 2f and the central processing unit 50 controls the line loop control unit 10 to form a loop and at the same time the second switch unit 130. Is selected as the transmission message reproducing state and the deck unit 70 is controlled so that the transmission message read out from the transmission message storage unit 160 passes through the transmission hiware Tx connected to one end of the first switch unit 30. The public switched network is transmitted through the line interface 20 and the line loop control unit 10 to be transmitted to a remote telephone connected to the other side of the public switched network.

After the transmission of the transmission message is started as in the step (2f) (2g), the central processing unit 50 checks the remote control password input. If it is confirmed that the remote control password has been input, the transmission of the transmission message is stopped in step (2h), and the flow proceeds to step (2i) to reproduce and send the received message. On the other hand, if there is no input of the remote control password, it is regarded as an incoming call to the absent user, completes transmission of the transmission message in step (2j), records the reception message in step (2k), and loops to step (2a). .

On the other hand, when it is determined that there is no recorded message recorded in step (2c), the process proceeds to step (2I) to count the number of rings. In step (2m), if it is determined that the ring number count reaches N + K, and it is confirmed that the ring has been ringed N + K times, in step (2n), transmission of the transmission message is started, and in step (2o), the remote control password Check the input of. At this time, when it is determined that there is an input of the remote control password, the transmission of the transmission message is stopped and looping to the step (2a). However, when it is determined in step (2o) that there is no remote control password input, it is regarded as a call made to the absent user as described above, and the transmission of the message is completed in step (2p), and then in step (2q). Record it. In conclusion, the above-described operation process, the central processing unit 50 controls the answering machine to operate at different ring times according to the presence or absence of the received message to send the outgoing message.

If there is a received message, the answering machine detects the ring from the ring detector 60 and rings N times so that the message is sent. If there is no received message, the ring detector 60 detects the ring. When this N + K rings, the message is sent. Therefore, the user can know whether there is a received message by the difference in the number of rings. In other words, if you answer the answering machine with an external remote telephone, the answering machine receives a ring signal from the exchange and rings the ring. At the same time, the user can hear a ringback tone that is supplied the number of times ringing from the exchange to the answering machine. The number of rings applied to the transponder can be determined instead as the number of ringback tones supplied through an external telephone.

On the other hand, if the call charge payment is made by the answering machine and a line loop is formed to send the message, the exchange recognizes the use state and adds the call charge. Therefore, if the user hangs up the ringback tone as many times as the number of rings without received messages, it can be confirmed that there is no received message without paying the call charge.

For example, if there is an incoming message, the answering machine operates three times (N = 3) after the ring is generated and sends out a message.If there is no incoming message, the answering machine is five times (N = 3, K = 2) after the ring occurs. Assuming that the central processing unit 50 controls the operation of each unit based on the flowchart of FIG. 3 so that the transmission message is transmitted by the user, the user makes a call with an auto answer key to confirm the presence of an incoming message to an external telephone at a remote site. If there is an incoming message, the user can listen to the outgoing message after hearing three ringback tones. In this case, since a line loop is formed, call charges are added. If there is no received message, the answering machine detects five rings through the above-described operation and forms a line loop to send outgoing messages. Therefore, the user does not hear the outgoing message after listening to five ringback tones. Therefore, if the user hears the fourth ringback tone after the three ringback tones are not sent, the user can determine that there is no received message recorded on the message tape of the answering machine. Therefore, if the 5th ringback tone is sounded and the line loop is formed and only 4 ringback tones are checked before the outgoing message is sent out, and the user ignites the remote ignition, the answering machine generates only 4 ring sounds. It can be confirmed that there is no received message without.

As described above, by sending out a message by varying the number of rings depending on whether there is a received message, there is an advantage that the presence or absence of a received message can be checked remotely without paying a call charge.

Claims (1)

A remote confirmation service method for an incoming message of an answering machine, comprising: a first step of checking whether a receiver message exists when a ring is detected; If the coordination password is recognized, stop sending the message and play the received message and send it to the remote phone.If the reconciliation password is not recognized, the second process of recording the received message after completion of the sending message and the receiving message may not exist. When the ring occurs as the second predetermined number of times larger than the first predetermined number of times when the ring is generated, if the remote password is not recognized, the third step of recording the received message after the completion of the transmission message is characterized in that How to.

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