KR100620949B1 - method and system for voice information recording in telephone call - Google Patents

Abstract

The present invention relates to a voice call recording system and a method thereof, so that a subscriber receiving a voice call service through an exchange can receive a voice call recording service regardless of the type of a terminal, and the subscriber can receive a voice call recording service through a network such as a PC. Voice call recording can be requested using a terminal that can be connected to UMS, so that a voice call can be recorded without causing discomfort to the other party performing the voice call.

Description

Voice call recording system and method therefor {method and system for voice information recording in telephone call}             

1 is a block diagram illustrating a configuration of a system in which a general exchanger and a UMS are connected.

2 is a flowchart for explaining the flow of a method for recording a voice call according to the prior art;

3 is a block diagram illustrating a configuration of a voice call recording system according to a preferred embodiment of the present invention.

4 is an internal block diagram illustrating a configuration of an exchanger according to a preferred embodiment of the present invention.

5 is an internal block diagram illustrating a UMS according to a preferred embodiment of the present invention.

6 is an internal block diagram illustrating a configuration of a personal computer according to a preferred embodiment of the present invention.

7 is a flowchart illustrating signal exchange between an exchange and a UMS according to a preferred embodiment of the present invention.

8 is a flow chart for explaining the flow of a method for providing a voice call recording service according to a preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

30: UMS 31: network interface unit

32: central processing unit 32a: recording processing unit

33: storage 34: wheat coupling

40: PC 41: input unit

42: central control unit 43: wired / wireless interface unit

44: display unit 44a: recording button

51 terminal 52 digital terminal

60 exchanger 61 control unit

62: memory 63: tone generator

64: DTMF transmitter / receiver 65: MFC transmitter / receiver

66: voice mailbox 67: trunk line circuit

68: subscriber circuit 69: digital subscriber circuit

70: switching unit

The present invention relates to a voice call recording system and a method thereof, and more particularly, to a subscriber receiving a voice call service using an exchange, recording a voice call content regardless of the type of a terminal, and in a state in which the other party does not recognize the voice call recording system. A voice call recording system and method for enabling the recording of voice calls.

The exchange is developed for the purpose of a telephone exchange, which is the most commonly used basic communication service, and basically consists of a call system in which voice is input, exchanged and output, and a control system controlling the same.

The exchanges are classified into mechanical, inverted, and electronic systems according to the configuration of the currency path system, and classified into manual, mechanical, and electronic systems according to the control system configuration.PBX (Private Branch Exchange) It is divided into a local exchange, a long distance exchange, and an international exchange, and recently, an ISDN exchange that adopts an integrated services digital network (ISDN) function has been developed and distributed.

The Unified Messaging System (UMS) is a computer telephony integration (CTI) application that uses the Public Switched Telephone Network (PSTN) to process different messages such as voice, fax, and e-mail on a single hardware platform.

The UMS delivers / stores / notifies various communication requests using voice, fax, e-mail, and mobile communication devices in one system, and freely converts the unique format of each medium to convert the e-mail to voice / fax. Or, it can be provided as a short call service of a text pager or PCS (Personal Communication System).

In addition, an e-mail message received by an e-mail system can be notified by fax using a fax conversion technology, or can be transmitted to a receiver through a voice mailbox and a call of an pager, and an internal voice mail box using a voice conversion technology.

1 is a block diagram illustrating a configuration of a system in which a general exchanger and a UMS are connected.

Referring to FIG. 1, the exchange 10 includes a control unit 11 performing all operations of the exchange, a subscriber unit 12 assigning a fixed extension number to an extension subscriber, and an extension number assigned by the subscriber unit 12. The subscriber terminal is connected in correspondence, and comprises a subscriber line circuit (SLC) card 13 connected to the UMS 20 and an input / output unit 14 for transmitting and receiving messages to and from the UMS 20. .

The UMS 20 is connected to the subscriber card 13, the subscriber port matching unit 21 for performing subscriber port matching, the control unit 22 for performing the overall operation of the UMS 20, and the input and output of the switch 10 It is configured to include a close unit 23 is connected to the unit 14 performs a close match for transmitting and receiving messages.

Typically, when the external UMS is used, the voice channel between the switch 10 and the UMS 20 is directly connected to the subscriber line 13 by a voice path and a RS-232C (Recommended Standard-232C) or LAN (Local Area Network) as a message path. Tightly connected.

2 is a flowchart illustrating a method of recording a voice call according to the prior art.

Referring to FIG. 2, the subscriber transmits a call connection request signal to the exchange 10 to establish a call with another terminal using the subscriber terminal.

The exchange 10 grasps the telephone number of the called terminal of the call connection request signal transmitted from the subscriber terminal, transmits the call connection request signal to the called terminal, and when a response signal is transmitted from the called terminal, the subscriber terminal and the called terminal. Connect the main call (S 1).

On the other hand, when the subscriber wants to record the voice call content while receiving a voice call service through a call set with another terminal, the subscriber selects a hook of the subscriber terminal and flashes the hook (S 2). ).

When the subscriber station hooks the flash, the exchange 10 suspends the current voice call and waits for a digit signal to be transmitted from the subscriber station (S 3).

The subscriber hook-flashes the subscriber station, selects a digit, and transmits a recording request signal to the switch 10 (S 4).

When the switch 10 receives a recording request signal from the subscriber station, the switch 10 transmits a recording start signal to the UMS 20 connected in tight coupling (S 5).

When the recording start signal is received from the switchboard 10, the UMS 20 starts recording the voice call content of the subscriber station (S6).

Then, the exchange 10 resumes the held voice call when the subscriber terminal performs the hook flash again (S 7).

In addition, when the subscriber terminal or the called terminal of the switch 10 is hooked on, the UMS 20 ends the operation of recording the contents of the voice call (S8).

In the method of recording the contents of the voice call, when the subscriber using the subscriber terminal wants to record the contents of the voice call, the user must make a hook flash to transmit the recording request signal to the switch 10.

However, when a subscriber makes a call flash through the subscriber terminal and suspends the voice call, there is a problem that the other subscriber may recognize the recording of the voice call and may feel uncomfortable.

In addition, in order to record the contents of the voice call during the voice call, the hook flash to transmit the recording request signal to the exchange 10, the hook flash again and the problem that the voice call between the subscribers is interrupted for a time until the voice call resumes Occurs.

On the other hand, if the subscriber uses a digital terminal, the subscriber registers the recording key directly with the digital terminal or after the administrator registers the recording key for the digital terminal using the tool of the exchange 10, The voice call can be recorded by using the recording key registered in the terminal.

However, the method of recording the voice call contents by using the digital terminal has a hassle that the subscriber must register the recording key of the digital terminal directly, and the voice call contents can be recorded only when the subscriber uses the digital terminal. You can record, which limits your use.

Accordingly, the present invention has been made to solve the above problems, the subscriber receiving the voice call service using the exchange, so that the subscriber can receive the voice call recording service regardless of the type of terminal, the other party in the voice call It is an object of the present invention to provide a voice call recording system and a method capable of relieving discomfort of a counterpart by allowing a voice call to be recorded in an unrecognized state.

Voice call recording system according to an aspect of the present invention for achieving the above object, the call is set up with the destination terminal according to the request signal transmitted from each terminal, the voice exchanged through the call in accordance with the received recording start signal An exchange that provides a channel for recording a call, and when a call is established through the exchange, provides the display information according to the recording service selection screen to the subscriber's computer terminal connected to the network and positioned corresponding to the terminal. A recording request through a computer terminal, a UMS (Unified Messaging System) for recording voice call content through a channel provided from an exchange, and an input unit for providing a selection signal input according to a subscriber's selection; A central control unit providing a display signal corresponding to a recording service selection screen according to display information provided from the UMS, or transmitting a recording request signal to the UMS according to a selection signal provided from an input unit; A wired / wireless interface unit transmitting a recording request signal transmitted from a central control unit through a wired / wireless network; And a computer terminal having a display unit for displaying the recording service selection screen according to a display signal provided from a central control unit.

delete

In addition, the terminal of the voice call recording system according to the present invention is characterized in that at least one of the terminal and the analog terminal connected to a single line or a digital terminal connected to a digital line.

In addition, the switch of the voice call recording system according to the present invention includes a circuit unit for receiving a call connection request signal and a voice signal transmitted from each terminal or a public telephone network, and transmitting each signal transmitted by the exchange to a public telephone network or each terminal. The controller detects the incoming phone number information of the call connection request signal received through the circuit unit, and transmits the signal to the destination terminal through the circuit unit, and generates and transmits at least one type of signal under the control of the controller. A processing unit, a voice mailbox unit for maintaining and occupying a channel through which the UMS can record voice call contents under control of the control unit, and a switching unit for switching each signal exchanged through a circuit unit or a signal processing unit under control of the control unit. It is characterized by.

In addition, the circuit portion of the voice call recording system according to the present invention is characterized in that it comprises a subscriber circuit connected to an analog terminal, a digital subscriber circuit connected to a digital terminal, and a trunk line circuit connected to a public telephone network.

And, the signal processing unit of the voice call recording system according to the present invention, a tone generating unit for generating an audible tone signal for notifying the call connection and progress status to the subscriber (local lffice) or the subscriber of the other switching station under the control of the control unit; The DTMF transceiver detects a DTMF (Dial Tone Multi Frequency) signal received through a circuit and provides a DTMF signal under the control of the controller, and an R2 MFC (Multi Frequency Code) signal received through the circuit. It includes a MFC transceiver for sensing and providing to the control unit, and generates the R2 MFC signal under the control of the control unit.

Meanwhile, according to another aspect of the present invention, a voice call recording service is provided in an exchange system including a plurality of terminals, a computer terminal corresponding to the terminal, and a Unified Messaging System (UMS) connected to the computer terminal through a network. The providing method includes the steps of an exchange connecting a call with a called terminal according to a call connection request signal transmitted from the terminal, and notifying the UMS of a busy state of the terminal to the UMS, and the computer terminal of the subscriber located in correspondence with the terminal establishes a network. Accessing a voice mailbox corresponding to a subscriber of the terminal registered in the UMS and outputting a recording service screen; transmitting, by the UMS, a recording start signal to the exchange according to a request signal transmitted from a computer terminal; The exchange maintains a channel through which the UMS can record the voice calls exchanged over the call. Includes the steps of performing a recording operation for recording voice conversations that stage and, UMS is exchanged through the channel.

In addition, the method for providing a voice call recording service according to the present invention, when the call is terminated, transmitting a call termination signal to the UMS, and, if the UMS receives a call termination signal, ending the recording operation; Transmitting, by the computer terminal, the call content request signal to the UMS according to the subscriber's request, and when the UMS receives the call content request signal from the computer terminal, providing the recorded voice call content through a recording operation; And outputting the voice call contents provided from the UMS so that the subscriber can recognize them.

Hereinafter, a voice call recording system and a method thereof according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a block diagram illustrating a configuration of a voice call recording system according to a preferred embodiment of the present invention.

Referring to FIG. 3, the voice recording system includes an exchanger 60, a Unified Messaging System (UMS) 30, a plurality of terminals 51 and 52, and a plurality of personal computers 40. do.

The exchange 60 connects a call with an external telephone station (not shown) according to a call connection request requested by an extension subscriber, and provides a voice call service with an external subscriber or when a call connection request is received from an external telephone station. It connects with internal subscriber and provides voice call service. In addition, it provides a voice call service by connecting calls between extension subscribers.

In addition, the exchange 60 transmits a voice call start signal to the UMS 30 when a call is connected between the terminals 51 and 52 or a call is initiated by an external terminal.

In addition, the PC 40 is provided to correspond to each terminal 50 so that the subscriber in the voice call can be provided with the voice recording service using the terminal 50.

In addition, the terminals 51 and 52 may be divided into a general subscriber terminal 51 connected to the switch 60 by a single line, and a digital subscriber terminal 52 connected to the switch 60 by a digital line.

4 is an internal block diagram illustrating a configuration of an exchanger according to a preferred embodiment of the present invention.

4, the switch 60 according to the present invention includes a control unit 61, a memory 62, a tone generator 63, a dial tone multi frequency (DTMF) transmitter / receiver 64, and an MFC transmitter / receiver. The receiver 65, the voice mailbox 66, the trunk line circuit 67, the subscriber circuit 68, the digital subscriber circuit 69 and the switching unit 70 are included.

The trunk line circuit 67 is configured such that the exchanger 60 forms a trunk line call loop with an external telephone station (not shown) through a public telephone network (PSTN), provides a signal transmitted from the public telephone network to the controller 61, and the exchanger 60 The signal generated in) is interfaced to be transmitted to an external telephone station through a public telephone network.

That is, the trunk line circuit 67 allows the switchboard 60 to seize the public telephone network to provide a voice call service.

The subscriber circuit 68 provides a signal transmitted from the subscriber station 51 connected by a single line to the control unit 61, and provides the subscriber station 51 to a public telephone network or a digital subscriber under the control of the control unit 61. Interface with the digital subscriber via circuit 69.

The digital subscriber circuit 69 provides a signal transmitted from the digital terminal 52 connected to the digital line to the controller 61, and provides the digital terminal 52 to the public telephone network or subscriber circuit under the control of the controller 61. Interface with the subscriber station 51 via 68.

The memory 62 stores program information and data necessary for the control unit 61 to perform basic call (CALL) and various functions of the exchanger 60.

The tone generator 63 generates various tones under the control of the controller 61 and provides them to the switching unit 70.

In this case, the tone generated by the tone generating unit 63 may correspond to an audible tone for notifying a subscriber of a local exchange or a subscriber of another exchange at the exchange 60 or the status of a call.

The type of audible tone is divided according to a transmission level, a frequency, a cadence, and the like, and a dial tone, a ringing tone, and a busy tone are provided. Most of them are separate for each country. It is defined by the standard.

The DTMF transmitting / receiving unit 64 detects and provides a DTMF signal transmitted from the subscriber station 51 to the control unit 61, generates a DTMF signal under the control of the control unit 61, and generates a switching unit ( 70) to the called terminal.

Here, the DTMF signal refers to a signal generated when a subscriber of the subscriber station selects a push button, and the DTMF signal configuration is selected from each of the mutually exclusive low frequency group and the high frequency group consisting of four frequencies in the voice band, respectively, and the digit 0. 16 kinds of special digits, *, #, A, B, C, D, etc. are used from 9 to 9, and they have the same specifications as DTMF signals generated from the telephone in the electronic exchange to test the receiving function of DTMF signaling. Send a DTMF signal.

Table 1 below is a frequency diagram of DTMF signals.

In addition, the MFC transmitting / receiving unit 65 analyzes the MFC signal received from the calling party at the called party by the DSP (Digital Signal Processing) method and provides it to the controller 61 when using the R2 MFC signal, which is an inter-station signaling method.

The MFC transmitter / receiver 65 generates and transmits an R2 MFC signal according to a digit or signal received from a public telephone network under the control of the controller 61.

R2 MFC signal has a signal code of 1 to 15 divided by a combination of forward and backward signals each consisting of six frequencies in a voice band (300 to 3400 Hz). In order to improve the transmission reliability, the transmission is performed in a continuously confirmed manner.

And, Table 2a is a frequency scheme of the R2 MFC front signal, Table 2b is a frequency scheme of the R2 MFC rear signal.

The voice mailbox 66 stores voice comment information transmitted from the exchanger 60 to the subscriber, provides voice comments under the control of the controller 61, and stores voice information input by the subscriber.

In addition, the voice mailbox 66 allows a subscriber registered in the voice mailbox to receive a call recording service through the UMS 30.

That is, when the recording start signal is received from the tightly coupled UMS 30, the voice mailbox 66 occupies a channel so that the UMS 30 can record the voice call contents under the control of the controller 61.

In addition, the UMS 30 records the voice call contents through a channel occupied by the voice mailbox 66.

The switching unit 70 provides each signal transmitted / received through the trunk line circuit 67, the subscriber circuit 68, and the digital subscriber circuit 69 to the controller 61, or is timing-switched to be transmitted to a corresponding destination. Do this.

In addition, the switching unit 70 performs timing switching so that each signal generated by the tone generator 63, the DTMF transmitter / receiver 64, and the MFC transmitter / receiver 65 can be transmitted to a corresponding destination.

That is, the switching unit 70 switches each signal to be transmitted to the destination under the control of the control unit 61, and when a call for providing a voice call service is set, the received voice signal is exchanged through the set call. Switch.

When a signal is received from each terminal 51 or 52 or a public telephone network, the controller 61 processes the signal according to the type of the signal.

In other words, when a call connection request signal is received from the public telephone network, the controller 61 detects the corresponding destination terminals 51 and 52 and controls the voice subscribers to be connected to the corresponding extension subscribers 51 and 52, respectively. When a digit, i.e., a call connection request signal, is received from 51 and 52, the incoming telephone number is determined and if the incoming telephone number is the extension terminals 51 and 52, the extension connection is performed. It transmits a call connection request signal to an external telephone company through.

When the call connection between heterogeneous stations needs to be handled, the control unit 61 controls the MFC transmitter / receiver 65 to generate and transmit an R2 MFC signal, and to transmit the digits transmitted from the terminals 51 and 52. A DTMF signal according to the control is generated by the DTMF transmitter / receiver 64 to be transmitted.

In addition, if the recording start signal is transmitted from the UMS 30 while the call is set to the subscriber registered in the voice mailbox 66, the control unit 61 sets up a call channel through the voice mailbox 66 to set up the UMS 30. Allows the user to record the voice call.

In this case, the communication channel between the exchanger 60 and the UMS 30 may be set through an input / output unit (not shown) through which the exchanger 60 and the UMS 30 exchange signals.

On the other hand, the UMS 30 is tightly coupled to the exchange 60, the PC 40 is connected to the UMS via a network (LAN).

The UMS 30 records the contents of the voice call of the subscriber who is provided with the voice call service by setting up a call through the switch 60 according to the request of the subscriber registered in the voice mailbox.

That is, when the recording request signal is transmitted from the PC 40, the UMS 30 transmits a recording start signal to the switch 60, and records the voice call contents through the call channel provided by the switch 60.

Then, the recorded voice call content is provided at the subscriber's request.

5 is an internal block diagram illustrating a UMS according to a preferred embodiment of the present invention.

Referring to FIG. 5, the UMS 30 includes a network interface unit 31, a central processing unit 32, a storage unit 33, and a wheat coupling unit 34, and the central processing unit 32 includes a recording processing unit 32a. ).

The wheat coupling unit 34 interfaces so that the UMS 30 can exchange signals with the switch 60, which is tightly coupled, and the network interface unit 31 can exchange signals with the PC 40 connected to the network. Interface them to do so.

When the recording request signal is transmitted from the PC 40, the central processing unit 32 transmits a recording start signal to the switchboard 60, and records the call content of the subscriber through the call channel set by the switchboard 60. .

When the recording request signal is transmitted from the PC 40, the recording processing unit 32a generates a recording start signal and transmits the recording start signal to the switch 60. When the switch 60 sets the call channel, the recording content is transmitted while transmitting a response signal. Start recording.

When the call termination signal is transmitted from the switchboard 60, the recording processing unit 32a ends the recording of the voice call contents.

The storage unit 33 stores program information for the central processing unit 32 to operate the UMS 30 and call contents recorded by the central processing unit 32.

In addition, when there is a request for recording information from the PC 40, the recording processing unit 32a provides the voice call contents stored in the storage unit 33 to the PC 40 so that the subscriber can transmit the voice call contents through the PC 40. Make sure to check.

6 is an internal block diagram illustrating a configuration of a personal computer according to an exemplary embodiment of the present invention.

Referring to FIG. 6, the PC 40 according to the present invention includes an input unit 41, a central control unit 42, a wired / wireless interface unit 43, and a display unit 44.

The wired / wireless interface unit 43 is connected to the UMS 30 through a wired / wireless network, and interfaces the recording button signal input from the subscriber to the UMS 30.

The display unit 44 displays corresponding information according to the display signal provided from the central control unit 42.

When the central control unit 42 receives that the subscriber has started a voice call from the UMS 30 through the wired / wireless interface unit 43, the central control unit 42 records the recording button through the display unit 44 so that the subscriber can select a recording service. 44a) provides a display signal for output.

At this time, the recording button 44a displayed by the display unit 44 is composed of a plurality of buttons, and each function can be given a corresponding function.

The central control unit 61 and 42 allow the subscriber to receive the recording service according to the recording button signal input from the subscriber through the input unit 41.

That is, the central control unit 42 transmits a recording request signal to the UMS 30 when the subscriber selects the recording button 44a.

In addition, the central control unit 42 requests the voice call contents stored in the UMS 30 at the request of the subscriber, and outputs the voice call contents provided from the UMS 30 so that the subscriber can check the voice call contents. do.

7 is a flowchart illustrating signal exchange between an exchange and a UMS according to a preferred embodiment of the present invention.

Referring to FIG. 7, first, when the switch 60 receives a call call connection request signal from a subscriber or a public telephone network, the switch 60 detects the called terminal and connects the call to the call (S30).

That is, the control unit 61 of the exchanger 60 receives a call connection request signal from the public telephone network through the trunk line circuit 67, or receives a digit through the subscriber circuit 68, or via the digital subscriber circuit 69. When the call connection request signal is received, the called terminal is identified and the call call is connected between the terminal that has transmitted the call request signal and the counterpart terminal.

When the call between terminals is connected, the control unit 61 of the exchanger 60 transmits call connection state information to the UMS 30 indicating that the subscriber registered in the voice mailbox of the UMS 30 is connected to the call. (S 31).

The UMS 30 notifies the subscriber's busy state to the PC 40 connected through the network, and the central control unit 42 of the PC 40 displays the record button 44a through the display 44.

When the subscriber selects the recording button 44a through the input unit 41 of the PC 40, the central control unit 42 transmits the recording request signal to the UMS 30.

When the recording request signal 32a of the UMS 30 receives the recording request signal from the network interface unit 31 (S 32), the recording processing unit 32 generates a recording start signal and transmits the signal to the switch 60 (S 33).

When the recording start signal is received, the control unit 61 of the exchanger 60 occupies a channel with the UMS 60 through the voice mailbox 66 (S 34).

When the switching unit 60 occupies a channel for recording the voice call content, the recording processing unit 32a of the UMS 30 starts a recording operation of extracting the subscriber's voice call content and storing it in the storage unit 33 ( S 35).

Then, the recording processing unit 32a transmits a response signal indicating that the recording operation is started to the switchboard 60 while starting the recording operation (S 36).

On the other hand, the control unit 61 of the exchanger 60 transmits a call termination signal to the UMS 30 when one of the terminals in the voice call is hooked on and the call is terminated (S 37). ).

When the call termination signal is transmitted from the switchboard 60, the recording processing unit 32a of the UMS 30 ends the recording operation (S 39).

8 is a flowchart illustrating a flow of a method for providing a voice call recording service according to a preferred embodiment of the present invention.

Referring to FIG. 8, when a subscriber selects a push button to make a voice call with another terminal through the terminals 51 and 52, the terminals 51 and 52 transmit a call connection request signal to the exchange 60 ( S 10).

Then, the exchange 60 grasps the called terminal of the call connection request signal transmitted from the terminals 51 and 52, transmits the call connection request signal to the called terminal, and when a response signal is received from the called terminal, the terminal 51 52) and establish a call call between the called terminal (S12).

On the other hand, when a call connection request signal is received from an external terminal, the called terminal is identified and the call connection request signal is transmitted to the corresponding terminals 51 and 52 (S 11). A call call between 51 and 52 is set (S 12).

That is, when the call connection request signal is transmitted from the terminal used by the extension subscriber, the control unit 61 of the exchange 60 determines whether the extension terminal or the external terminal is determined by checking the telephone number of the called terminal.

If the called terminal is an extension terminal, the controller 61 controls the tone generating unit 63 to generate a ring tone and transmits the ring tone to the corresponding extension terminal. Set up a call between destination terminals.

On the other hand, if the telephone number of the called terminal is an external terminal, the controller 61 controls the tone generating unit 63 to emit a ring tone and transmits the ring tone to the external terminal through the trunk line circuit 67.

When the response signal is received from the external terminal, the controller 61 sets up a call call between the subscriber terminal 51 and the external terminal.

At this time, the subscriber using the terminal to which the call is established is a subscriber registered in the voice mailbox 66 provided by the UMS 30, and the switchboard 60 becomes a tightly coupled UMS when the subscriber is in a busy state. Notifies the subscriber's busy state to 30.

The central processing unit 32 of the UMS 30 notifies the PC 40 connected to the network that the current subscriber is in a call state, and the central control unit 42 of the PC 40 uses the record button through the display unit 44. Outputs 44a.

When the subscriber selects the recording button 44a through the input unit 41 of the PC 40, the central control unit 42 of the PC 40 transmits a recording request signal to the UMS 30 (S 13).

In this case, when the subscriber is not connected to the UMS 30 through the PC 40, it is preferable to automatically connect the UMS 30 and the PC 40 according to a preset program through the network.

When the recording request signal 32a is received from the PC 40, the recording processor 32a of the UMS 30 transmits a recording start signal to the switch 60 (S 14).

When the recording start signal is transmitted from the UMS, the control unit 61 recognizes that the subscriber has requested the recording service (S15), and seizes the channel with the tightly coupled UMS 30 (S15). S 16).

The recording processing unit 32a of the UMS 30 records the voice call content of the subscriber through the channel occupied by the switchboard 60 when the current state of the UMS 30 is a free state capable of recording a voice call. Beginning (S 17).

Then, the recording processing unit 32a of the UMS 30 starts to record the voice call of the subscriber and transmits a response signal to the switchboard 60 (S 18).

The control unit 61 of the exchanger 60 maintains the state of occupying the channel with the UMS 30 so that the UMS 30 can record the voice call contents (S19).

On the other hand, when the subscriber terminal 51, 52 or the counterpart terminal is in the hook-on state, that is, when the voice call ends, the switch 60 ends the set voice call call (S20).

Then, the exchange 60 ends the call and transmits a call end signal to the UMS 30 (S 21).

When the call termination signal is transmitted, the recording processing unit 32a of the UMS 30 ends the recording operation of the voice call contents (S22).

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and changes are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims.

As described above, according to the present invention, a subscriber receiving a voice call service through an exchange can be provided with a voice call recording service regardless of the type of the terminal.

In addition, according to the present invention, the subscriber can request the voice call recording by using a terminal capable of accessing the UMS through a network, such as a PC, so as to record the contents of the voice call without causing discomfort to the other party performing the voice call. It can be effective.

In addition, according to the present invention, the subscriber can request a voice call recording through the network using a terminal, such as a PC familiar, to eliminate the inconvenience that the subscriber of the model using an unfamiliar equipment, such as a digital phone In addition, the addition of simple software has the effect of eliminating the inconvenience that the subscriber must register individually or limit the use of the subscriber's recording service.

Claims (11)

In a switching system connected to a plurality of terminals, A switch configured to set up a call with a called terminal according to a request signal transmitted from each terminal, and to provide a channel for recording voice call contents exchanged through the call according to a received recording start signal; When the call is established through the exchange, the display information according to the recording service selection screen is provided to the computer terminal of the subscriber connected to the network and located in correspondence with the terminal, and when the subscriber requests recording through the computer terminal, A Unified Messaging System (UMS) for recording a voice call through the provided channel; And An input unit for providing a selection signal input according to the subscriber's selection; A central control unit providing a display signal corresponding to the recording service selection screen according to the display information provided from the UMS, or transmitting a recording request signal to the UMS according to a selection signal provided from the input unit; A wired / wireless interface unit for transmitting a recording request signal transmitted from the central control unit through a wired / wireless network; And a computer terminal having a display unit for displaying the recording service selection screen according to the display signal provided from the central control unit. delete The method of claim 1, wherein the terminal, And at least one terminal of the analog terminal connected to the switch and a single line or a digital terminal connected to a digital line. The method of claim 1, wherein the exchanger, A circuit unit which receives a call connection request signal and a voice signal transmitted from each terminal or a public telephone network, and transmits each signal transmitted by the exchange to the public telephone network or each terminal; A control unit which grasps incoming telephone number information of the call connection request signal received through the circuit unit and transmits the received telephone number information to the destination terminal through the circuit unit; A signal processor for generating at least one type of signal under the control of the controller and transmitting the signal through the circuit unit; A voice mailbox unit occupying and holding a channel through which the UMS can record the voice call contents under the control of the controller; And a switching unit for switching each of the signals exchanged through the circuit unit or the signal processing unit under the control of the control unit. The method of claim 4, wherein the circuit portion, A subscriber circuit connected to the analog terminal; A digital subscriber circuit coupled with the digital terminal; And a trunk line circuit connected to the public telephone network. The method of claim 4, wherein the signal processing unit, A tone generator for generating an audible tone signal for notifying a call connection and progress status to a subscriber of a local exchange or another switching station under the control of the controller; A DTMF transceiver for detecting a DTMF (Dial Tone Multi Frequency) signal received through the circuit unit and providing it to the controller, and generating a DTMF signal under the control of the controller; And an MFC transceiver configured to detect an R2 MFC signal received through the circuit unit, provide the controller to the controller, and generate an R2 MFC signal according to the control of the controller. A method for providing a voice call recording service in an exchange system including a plurality of terminals, a computer terminal provided corresponding to the terminal, and a Unified Messaging System (UMS) connected to the network with the computer terminal, Connecting, by the exchange, a call with a called terminal according to a call connection request signal transmitted from a terminal, and notifying the UMS of a busy state of the terminal to the UMS; A computer terminal of a subscriber located corresponding to the terminal accessing a voice mailbox corresponding to the subscriber of the terminal registered with the UMS through a network and outputting a recording service screen; Transmitting, by the UMS, a recording start signal to the exchange according to a request signal transmitted from a computer terminal; The exchange occupying and holding a channel through which the UMS can record the voice call contents exchanged through the call; And performing recording by the UMS to record the voice call contents exchanged through the channel. The method of claim 7, wherein Sending, by the exchange, a call termination signal to the UMS when the call ends; The UMS further comprises the step of terminating the recording, when the call termination signal is received, providing a voice call recording service. The method of claim 7, wherein Transmitting, by the computer terminal, a call content request signal to the UMS according to the subscriber's request; When the UMS receives a call content request signal from the computer terminal, providing the voice call content recorded through the recording operation; The computer terminal further comprises the step of outputting the voice call content provided from the UMS so that the subscriber can recognize. The method of claim 7, wherein the terminal, And at least one of an analog terminal connected to the switch and a single line or a digital terminal connected to a digital line. delete

Images