KR100750910B1 - System for recording contents of telephone call and method thereof - Google Patents

Abstract

The present invention relates to a system for recording telephone call contents using a network and a method thereof. The telephone call history recording system connects a call between a customer and an agent, converts a voice signal of the call content into a digital signal, compresses it, and transmits it to the outside, and is transmitted from the automatic call processing server. And a call record server for storing and managing call contents in the form of digital signals.

The automatic call processing server and the call recording server each transmit and receive data through two communication lines using different IP addresses, and the automatic call processing server uses a first communication line connected to a public network to transmit the data. The call processing server transmits the contents of the call using the second communication line connected to the dedicated line. As a result, all the contents of the call can be recorded and stored without burdening the public network by transmitting the contents of the call using the second communication line connected to the dedicated line.

Multi-line simultaneous recording system

Description

Telephone call record system and its method {SYSTEM FOR RECORDING CONTENTS OF TELEPHONE CALL AND METHOD THEREOF}

1 is a block diagram showing an overall system for recording a telephone call content according to a preferred embodiment of the present invention.

2 is a block diagram schematically showing the configuration of an automatic call processing server of a telephone call record system according to a preferred embodiment of the present invention.

3 is a flowchart for sequentially explaining the operation of the automatic call processing server of the telephone call contents recording system according to the preferred embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

100: automatic call processing server

120: database server

130, 132, 134: customer phone

140: PSTN

170: call recording server

102: control unit

104: voice processing unit

106: first interface unit

108: second interface unit

160, 162, 164: Agent computer

The present invention relates to a network call recording system and a method based on the network, and more particularly, to a telephone call recording system and a network having a dedicated communication line for transmitting only the call contents to be recorded, and a network thereof. It is about a method.

Multi-channel digital recording system is a device that mainly records the conversation between the customer and the agent such as communication sales center or customer satisfaction center along with the talk time (year, month, day, hour, minute, second). As a result, it is mainly used to use the recorded call as evidence in case of a problem with the customer's complaint or call.

A conventional multi-line simultaneous recording system is connected through a separate recording line to a main distribution frame (hereinafter referred to as 'MDF') connected to a Private Automatic Branch Exchange (hereinafter referred to as 'PABX'). The PABX is connected to a public switched telephone network (hereinafter referred to as a 'PSTN').

This conventional multi-line recording system is connected to the MDF through a separate line, which requires as many lines of recording equipment as the helpline line, requires as many separate lines for playback as there are managers, and a line from each seat to the equipment. There was a problem that requires construction. In addition, it was not possible to check the line status such as wiring or disconnection of the line, and when connecting with a digital phone, a separate digital / analog converter for recording was needed, and a separate recording line from each phone to recording equipment, and every phone Since an additional jack for recording was required, the cost was increased and the line connection was difficult.

In order to solve this problem, Korean Patent Application No. 10-2000-61389 entitled "Method for recording and retrieving telephone call contents in a network environment" has been proposed. The patent application relates to a method for recording and retrieving telephone conversations in a network environment for recording and storing telephone conversations in a network environment. The patent application can implement multi-line simultaneous recording in a network environment without using separate recording lines. It is characterized by providing a solution. However, since the method proposed by the patent application is configured to perform recording on all call channels in real time, the number of recording channels also increases in proportion to the number of call channels. In addition, since all the agents store call history in the call recording system through the public network and all managers listen to the stored call history through the public network, there is a problem that a high speed network and a large storage space must be provided. do.

In addition, Korean Patent Application No. 10-2004-13778 relates to a method for recording call content in a multi-line recording system, wherein the patent application selectively performs call recording between a customer and an agent to reduce the load on the network. We proposed a method to reduce the cost and simplify the structure. However, the method proposed in the patent application simply reduces the load on the network with a method of selectively recording the contents of the call and the digital voice data compression technology, thereby reducing the ability to cope with customer complaints that may occur later. Since the contents of the call must be transmitted from the PCs of each counselor to the call recording server, there is a concern that the recorded data may be lost and the load on the network may increase.

On the other hand, since the above-described conventional telephone call record system continuously records and records only voice data between the counselor and the customer, there are inherent problems in that it takes a considerable time to search for specific voice data later.

DISCLOSURE OF THE INVENTION An object of the present invention for solving the above problems is to provide a system for recording a telephone call content and a method thereof capable of storing a call record between a customer and an agent without putting a load on the network.

It is another object of the present invention to provide a telephone call record system and a method for easily retrieving a stored call record.

Features of the present invention for achieving the above-described technical problem relates to a telephone call content recording system,
At least one customer terminal;
At least one agent terminal;
A database for storing and managing the customer information;
The call is connected between the customer and the counselor, and after the call is connected, customer information about the customer phone number and the customer phone number retrieved from the database is transmitted to the counselor terminal, and an analog signal in the form of a voice corresponding to the call content is transmitted. An automatic call processing server which converts the digital signal and transmits the converted call to a call recording server;
A call recording server for recording and storing call contents and other data information transmitted from the automatic call processing server;
The automatic call processing server and the call recording server,
A first communication line for communicating using a public network, and
A second communication line for communicating using a dedicated line;
The automatic call processing server transmits a call content converted into a digital signal using a second communication line to the call recording server, and other data is transmitted using the first communication line.

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Here, it is preferable that each of the first communication line and the second communication line is set to IP addresses of different bands in the automatic call processing server and the call recording server.

The call recording server may generate and store a file name of a recorded call history when the call is terminated, and transmit the generated file name to the database server to store and manage the file name in the database server.

Hereinafter, with reference to the accompanying drawings will be described in detail a telephone call content recording system according to a preferred embodiment of the present invention.

1 is a block diagram showing the overall configuration of a system for recording phone call contents according to a preferred embodiment of the present invention. Referring to FIG. 1, a telephone call record system according to the present embodiment is a public switched telephone network (hereinafter referred to as 'PSTN') for transmitting and receiving telephone signals to and from terminals 130, 132, and 134 of customers. Automatic call processing server 100, database server 120 for storing and managing customer information, call recording server 170, at least one agent terminal and computers 160, 162 and 164 (hereinafter referred to as an agent). Terminal). Hereinafter, the configuration and operation of the above-described components will be described in detail.

The automatic call processing server 100 first connects a call between a customer and an agent when a call request is generated from a terminal of customers via the PSTN 140. Thereafter, the customer phone number is transmitted to the counselor terminal, and the customer information corresponding to the customer phone number is retrieved from the database server 120 and transmitted to the counselor terminal.

In addition, the automatic call processing server 100 connects a call between a customer and an agent, converts an analog signal corresponding to voice data, which is the contents of a call, into a digital signal and transmits the digital signal to the call recording server 170. When finished, the file name of the contents of the call recorded in the call recording server 170 is transmitted to the database server 120 and recorded in association with the corresponding customer phone number.

The database server 120 stores and manages a customer phone number, customer identification information, and the like, and stores and manages a file name of the contents of the call stored in the call record server 170.

On the other hand, the automatic call processing server 100 and the call recording server 170 is connected by two communication lines, the first communication line 182 is connected using a public network, the second communication line 180 Is connected using a dedicated line. More specifically, the automatic call processing server 100 and the call recording server 170 are each provided with two LAN cards, each LAN card to be set to a different IP address.

For example, the IP address of the first LAN card of the automatic call processing server 100 is "10.0.0.1, Subnetmask 255.255.0.0", and the IP address of the first LAN card of the call recording server 170 is "10.0.0.2," Subnetmask 255.255.0.0 ". And, the IP address of the second LAN card of the automatic call processing server 100 is "192.168.0.1, Subnetmask 255.255.0.0", and the IP address of the second LAN card of the call recording server 170 is "192.168.0.2, Subnetmask 255.255". .255.0 ".

As described above, the automatic call processing server 100 and the call recording server 170 may be selectively connected using two communication lines, and the automatic call processing server 100 may use the second communication using a dedicated line. Sends the converted call to digital signal to the line 180, and other data signals to the first communication line 182 using the public network, thereby increasing the overall call history without increasing the load on the entire public network You can save and record it. In this case, the first communication line 182 using the public network transmits specific data indicating that the call is being made to the call recording server 170, thereby providing information in real time from the call recording server 170. To be monitored.

On the other hand, the call recording server 170 not only receives and stores the call history through the second call line 180 using a dedicated line, but also the ID and call time of an agent through the first call line 182 using a public network. In addition, the customer information is also received and stored. When the call ends, a call name is generated and a file name is stored, and the generated file name is transmitted to the database server 120.

Hereinafter, with reference to Figure 2, the configuration of the automatic call processing server 100 according to a preferred embodiment of the present invention will be described in detail. As shown in FIG. 2, the automatic call processing server 100 includes a control unit 102, a voice processing unit 104, a first interface unit 106, and a second interface unit 108 that control overall operations. do.

The control unit 102 of the automatic call processing server 100 controls the overall operation, and connects a call between the customer and the counselor, or transmits the customer phone number and the customer information retrieved from the database server to the counselor terminal.

In addition, when the call is connected, the control unit 102 converts an analog signal corresponding to voice data of the call history into a digital signal using the voice processing unit 104 and then connects to the call recording server through the second interface unit 108. Will be sent.

The voice processing unit 104 of the automatic call processing server 100 converts the voice data in the form of an analog signal into a digital signal, wherein an algorithm for converting the analog signal into a digital signal has a speed of several tens of kbps when recording a call. To the network.

For example, the algorithm for converting analog signals to digital signals uses a maximum compression algorithm such as G.723.1, which is used in Dialogic ADPCM or VOIP Internet telephony. When sent over the network at 5.3kbps.

Meanwhile, the first interface unit 106 of the automatic call processing server 100 may be connected to an external public network, and a LAN card or a modem may be used. The automatic call processing server 100 transmits information on a call, for example, an agent ID, a call time, customer information, or the like, by using the first interface unit 106, or a manager or an agent listens to the call record.

In addition, as the second interface unit 108 of the automatic call processing server 100 is connected to the call recording server by a dedicated line, a LAN card or the like may be used. The automatic call processing server 100 transmits the contents of the call to the call recording server by using the second interface unit 108. At this time, the call history may be stored in the call recording server at a transmission rate of up to 100 Mbps. The transmission speed may change depending on the LAN card.

For example, using the compression algorithm of G.723.1, when recording a call, 5.3kbyte files can be created, so the maximum number of simultaneous recordings can be 18000 at 100Mbps network transfer rate. have. (The number of call channels that can be recorded at the same time is 100,000Kbps / 5.3Kbps = approximately 18000.)

3, the operation of the telephone call contents recording system according to the preferred embodiment of the present invention described above will be described in detail. 3 is a flowchart illustrating the operation of the control unit of the automatic call processing system of the telephone call record system according to the present invention.

First, when the control unit transmits a telephone call request signal from a customer, the controller connects to a call agent (step 300). Next, the customer information is retrieved from the database server using the customer phone number, and the retrieved customer information and the customer phone number are transmitted to the counselor terminal (step 310). When the call is connected and the call between the customer and the counselor starts, the voice data of the analog signal is converted into a digital signal, compressed, and then transmitted to the call recording server using the second call line (step 320). If the end of the call is detected (step 330), recording of the call is stopped (step 340), and the file name is transmitted to the database server for recording (step 350). Next, the counselor receives the contents of the call input to the counselor terminal from the counselor terminal, and stores and manages the received contents in a database server (step 360).

Although the present invention has been described above with reference to preferred embodiments thereof, this is merely an example and is not intended to limit the present invention, and those skilled in the art do not depart from the essential characteristics of the present invention. It will be appreciated that various modifications and applications which are not illustrated above in the scope are possible. For example, in the embodiment of the present invention, the contents of the customer information stored and managed in the database server, the signal conversion method and the compression method in the voice processing unit of the automatic call processing server reduce the load of the network and the performance of the call recording server In order to improve the various modifications can be carried out. And differences relating to such modifications and applications should be construed as being included in the scope of the invention defined in the appended claims.

According to the present invention, it is possible to provide a telephone call content recording system that simplifies the installation of a network or the entire system and can record and store the entire call content without putting a load on the network.

In addition, according to the present invention, it is possible to provide a telephone call content recording system capable of recording all the call contents other than the selective call recording with the customer and monitoring the call records in real time.

In addition, according to the present invention, in addition to the contents of the telephone call, the counselor inputs additional data for the customer together and stores and manages the same in the database server, so that the call record can be easily listened through the customer information inquiry later.

In addition, according to the present invention, by allowing the team leader or manager to monitor the contents of the call between the agent and the customer in real time, the manager can check or monitor the counseling state of the agent.

Claims (9)

At least one customer terminal; At least one agent terminal; A database for storing and managing the customer information; The call is connected between the customer and the counselor, and after the call is connected, customer information about the customer phone number and the customer phone number retrieved from the database is transmitted to the counselor terminal, and an analog signal in the form of a voice corresponding to the call content is transmitted. An automatic call processing server which converts the digital signal and transmits the converted call to a call recording server; A call recording server for recording and storing call contents and other data information transmitted from the automatic call processing server; The automatic call processing server and the call recording server, A first communication line for communicating using a public network, and A second communication line for communicating using a dedicated line; The automatic call processing server records the contents of the call converted into a digital signal using the second communication line to the call recording server, and other data is transmitted using the first communication line. system. The telephone call record system according to claim 1, wherein each of the first communication line and the second communication line is set to IP addresses of different bands at the automatic call processing server and the call recording server. . The apparatus of claim 1 or 2, wherein the automatic call processing server includes a voice processing unit which converts a voice signal into a digital signal and then compresses the voice signal. And the automatic call processing server transmits the signal converted by the voice processing unit to the call recording server. The method of claim 1 or 2, wherein the call recording server generates and stores a file name of the recorded call history when the call is terminated, and transmits the generated file name to the database server. system. 3. The telephone call contents recording system according to claim 1 or 2, wherein the automatic call processing server transmits call related information input from a counselor to the call recording server using the first communication line. The telephone call record according to claim 1 or 2, wherein the database server includes at least a file name of a customer information, a customer telephone number, and a call history file of a customer and an agent stored in the call recording server. system. At least one or more customer terminals, at least one or more counselor terminals, a database for storing and managing the customer information, an automatic call processing server for connecting calls between the customer and the counselor, and digital transmissions from the automatic call processing server. In a call recording server for storing and managing the call content in the form of a signal, the telephone call content recording method for recording and storing the call content of the customer and the agent in a networked system, When the automatic call processing server transmits a telephone call request signal from the customer terminal, making a call connection with the counselor terminal; The automatic call processing server retrieving customer information from the database using the customer phone number and transmitting the retrieved customer information and customer phone number to the counselor terminal; When the call between the customer terminal and the counselor terminal is initiated and the call between the customer and the counselor starts, the automatic call processing server converts the call voice data in the form of an analog signal into a digital signal, compresses the call, and records the call using a dedicated line. Transmitting to a server; When the termination of the call between the customer terminal and the counselor terminal is detected, transmitting the file name of the call contents recorded in the call recording server to the database by the automatic call processing server; Telephone call contents recording method comprising the. The method of claim 7, wherein the telephone call record content method, And transmitting, by the automatic call processing server, the call-related information transmitted from the counselor terminal to the call recording server using a public network. delete

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