JP2009055376A - Speech communication content certifying system, speech communication content certifying device, telephone device and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speech communication contents certifying system which can record speech communication contents partially for certification. <P>SOLUTION: The speech communication contents certifying system 10 includes: a speech communication contents certifying device 100 for proving the speech communication contents; a call-out side telephone device 120 for demanding a call connection to the speech communication contents certifying device 100; and a called side telephone device 140 in which a call is connected between the call-out side telephone device 120 and the called side telephone device 140 by the speech communication contents certifying device 100. The speech communication contents certifying device 100 includes: a telephone connection part 102 for connecting a call between the call-out side telephone device 120 and the called side telephone device 140; a speech communication contents recording part 104 for recording a speech communication voice in response to a demand transmitted from at least one of the call-out side telephone device 120 and the called side telephone device 140 in a state that a call is connected; a speech communication contents storing part 106 for storing speech communication audio data as speech communication contents information; and a speech communication contents certification producing part 114 for adding a digital signature to the speech communication contents information to produce a speech communication certification. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a call content certification system, a call content certification device, a telephone device, and a program.

  Conventionally, as a method of proving the content of a telephone conversation, a conversation is held in the presence of a third party and the third party proves the content, or the conversation content is recorded on a recording medium such as a tape. There was a method such as preservation. However, when attending by a third party, there are problems such as taking time to arrange attendance and schedule adjustment. Further, when certifying by voice recorded on a tape or the like, it is difficult to reliably certify the conversation speaker and the call date and time recorded on the tape, and the recorded contents can be altered.

  A method of automatically recording on a recording medium has been devised in contrast to the conventional method performed manually. For example, Patent Document 1 discloses a telephone call that automatically records the call contents and issues a third party certificate for the recorded call contents, thereby ensuring the authenticity of the call contents. The content certification service is described. Patent Document 2 describes a call service that records call contents and time information and can prove that the recorded data is accurate.

International Publication No. 05/020504 JP 2004-172694 A

  However, if you automatically record the call voice with such a service, the conversation will be recorded continuously from the start of the call until one of the parties hangs up, and the recorded data may become enormous. there were. Also, only a small portion of the recorded audio data contains the content that you want to prove, and it is very time-consuming to find the location where the desired content is recorded from the enormous amount of data. There was also the problem that it took.

  Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a new and improved call that can partially record and prove the contents of a telephone call. To provide a content certification system, a call content certification device, a telephone device, and a program.

  In order to solve the above problems, according to one aspect of the present invention, a call content certifying device for certifying the content of a call performed between a plurality of telephone devices and a call connection request to the call content certifying device are requested. There is provided a call content proof system comprising a calling side telephone device and a called side phone device to which a call is connected between the calling side phone device by the call content proof device. The call content certifying device connects a call between a calling side telephone device and a called side telephone device in response to a request from the calling side telephone device, and relays the call, and a telephone connection unit The call content recording unit records the call voice in response to a request transmitted from at least one of the calling side telephone device and the called side telephone device in a state where the call is connected, and the call content recording unit records the call. A call content storage unit for storing the received call voice data as call content information, and a call certificate generation unit for generating a call certificate by adding an electronic signature to the call content information stored in the call content storage unit, Prepare.

  With this configuration, each telephone device can make a call through the call content certification device, and can record the call content at a desired timing. As a result, it is possible to partially record the contents of the call, and the data of the call voice can be kept to a minimum as compared with the conventional method that records all calls from the call start to the call end. Further, since only the necessary part of the conversation content can be recorded, it is possible to save only the part of the data to be proved out of a large amount of call data.

  In order to solve the above problem, according to another aspect of the present invention, there is provided a call content certifying device for certifying the content of a call performed between a calling side telephone device and a called side telephone device. In response to a request from the calling side telephone device, the call is connected between the calling side telephone device and the called side telephone device, and the call is connected by the telephone connection unit that relays the call and the telephone connection unit. A call content recording unit for recording a call voice in response to a request transmitted from at least one of the calling side telephone device and the called side telephone device, and the call voice recorded by the call content recording unit A call content proof comprising: a call content storage unit for storing data as call content information; and a call proof generation unit for generating a call proof by adding an electronic signature to the call content information stored in the call content storage unit An apparatus is provided.

  Such a configuration makes it possible to record and verify the contents of the call partially, and keep the call voice data to the minimum necessary compared to the conventional method that records all calls from the call start to the call end. be able to. Further, since only the necessary part of the conversation content can be recorded, it is possible to save only the part of the data to be proved out of a large amount of call data.

  The call content certification device further includes a related information recording unit that records information related to the call content information as call related information, and the call certification generating unit generates a call certification by adding an electronic signature to the call related information. You may make it do. For example, the call related information may be information indicating a date and time when a call recorded as the call content information is performed. Thereby, it is possible to prove the date and time of the call as well as the content of the call.

  Alternatively, the call-related information may be data other than the call voice transmitted / received between the calling side telephone device and the called side telephone device. As a result, data transmitted and received by communication means other than telephone calls can also be targeted for certification.

  In addition, the call content certification device may further include an authentication processing unit that performs authentication processing on the calling side telephone device and the called side telephone device. As a result, security can be ensured between the communication content lighting device and each telephone device, and more reliable proof can be provided for the caller who has made a call related to the content of the call to be verified.

  Further, the authentication processing unit may perform authentication processing using a personal authentication device connected to the calling side telephone device or the called side telephone device. As a result, it is possible to perform verification of a caller not in units of telephone numbers or telephone devices but in units of individuals.

  Further, the call content recording unit may notify another telephone device that a call voice recording start request or recording end request has been received from any of the telephone devices during the call. As a result, the user who is the call partner of the user who made the recording request can also recognize that the call has been recorded.

  Further, the call content recording unit may start or end the recording of the call voice after receiving a response to permit the recording start request or the recording end request from another telephone device. As a result, it is possible to perform call recording in a state where all the users who are talking agree to record the call.

  In addition, the call content information may be a hash value obtained from call voice data recorded by the call content recording unit. Thereby, the stored call content data can be compressed, and the storage area provided in the call content recording device can be reduced.

  In order to solve the above problem, according to another aspect of the present invention, there is provided a telephone device connected to another telephone device via a call content certifying device for certifying the call content, wherein the call content is In the state where a call is connected between a telephone connection unit that connects a call with another telephone device via the certification device and another telephone device via the call content certification device, the call content certification device There is provided a telephone device including a call record requesting unit for requesting recording start or end of recording of call contents.

  With this configuration, each caller can start or end call recording at an arbitrary timing during the call. As a result, it is possible to record only the contents of the call that each caller wants to record, and the call can be recorded partially.

  The telephone device may further include an authentication processing unit that performs an authentication process with the call content certification device. As a result, security can be ensured between the communication content lighting device and each telephone device, and more reliable proof can be provided for the caller who has made a call related to the content of the call to be verified.

  Further, the authentication processing unit may perform authentication processing using authentication information stored in the personal authentication device. As a result, it is possible to perform verification of a caller not in units of telephone numbers or telephone devices but in units of individuals.

  Further, the telephone device further includes a call content recording unit that records a call voice transmitted / received to / from another telephone device, and a call content storage unit that stores the recorded call voice data. May be. As a result, it is possible to record call voice on the telephone device side, and it is not necessary to store call voice data on the call content recording device side.

  In order to solve the above-mentioned problem, according to another aspect of the present invention, the content of a call for proving the content of a call performed between a calling side telephone device and a called side telephone device according to another aspect of the present invention. A certifying device for connecting a call between a calling side telephone device and a called side telephone device in response to a request from the calling side telephone device and relaying the call; and a telephone connection unit A call content recording unit that records a call voice in response to a request transmitted from at least one of a calling side telephone device and a called side telephone device while a call is connected, and is recorded by a call content recording unit. A call content storage unit for storing the received call voice data as call content information, and a call certificate generation unit for generating a call certificate by adding an electronic signature to the call content information stored in the call content storage unit Functions as a call content verification device Program for causing is provided.

  In order to solve the above-mentioned problem, according to another aspect of the present invention, there is provided a telephone device connected to another telephone device via a call content certifying device for proving call content. A telephone connection unit that connects a call to another telephone device via a call content certifying device and a call that is connected to another telephone device via a call content certifying device There is provided a program for causing a content certifying device to function as a telephone device comprising a call record requesting unit that requests recording start or end of recording of a call content.

  As described above, according to the present invention, it is possible to partially record and verify the contents of a telephone call.

  Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

(First embodiment)
First, with reference to FIG. 1, a call content certification system according to a first embodiment of the present invention will be described. FIG. 1 is a block diagram showing a schematic configuration of a call content certification system 10 according to the first embodiment.

  As shown in FIG. 1, the call content certification system 10 according to the present embodiment includes a call content certification device 100 and a plurality of telephone devices 120 and 140. In addition, although demonstrated here as two telephone apparatuses, this invention is not limited to this example, Two or more telephone apparatuses may be sufficient.

The call content certification system 10 is a system for recording call voices transmitted and received between two or more telephone devices 120 and 140 and certifying the call contents. A telephone call is connected between the telephone device 120 and the telephone device 140 via the call content certification device 100 and the network 160. The telephone devices 120 and 140 may be digital telephones, IP telephones, soft phones, mobile phone terminals, and the like. The network 160 is a telephone communication network corresponding to the telephone devices 120 and 140. For example, a PSTN (public
It may be a switched telephone network, a mobile communication network, a satellite communication network, the Internet, an NGN (Next Generation Network), or the like.

(Call content certification device 100)
Next, the configuration of the call content certification device 100 will be described with reference to FIG. FIG. 2 is a block diagram showing a schematic configuration of the call content certification device 100. As shown in FIG. 2, the call content certification device 100 includes a telephone connection unit 102, a call content recording unit 104, a call content storage unit 106, a related information recording unit 108, a related information storage unit 110, and an authentication process. The unit 112 and the call proof generation unit 114 are configured. Hereinafter, functions of each unit will be described.

(Telephone connection unit 102)
The telephone connection unit 102 sends a call to the called telephone device using the telephone number sent together with the telephone connection request from the calling telephone device, and the calling telephone device, the called telephone device, Is a functional unit for connecting calls between the two. For example, when the telephone connection unit 102 receives a telephone connection request from the telephone device 120 together with the telephone number of the telephone device 140, the telephone connection unit 102 sends a call to the telephone device 140 using the received telephone number, and a call request I do. When the telephone device 140 responds to the call, it is possible to make a call between the telephone device 120 and the telephone device 140 via the call content certification device 100. During a call, the telephone connection unit 102 relays call voice data transmitted and received between the telephone device 120 and the telephone device 140. In addition, when a disconnection request is received from any telephone device, a process for disconnecting the call is performed.

(Call content recording unit 104, call content storage unit 106)
The call content recording unit 104 is a functional unit for recording the call voice relayed by the telephone connection unit 102. The call content storage unit 106 is a storage unit that stores call voice data recorded by the call content recording unit 104. The call content recording unit 104 receives a call content recording start request from any of the telephone devices in a call and starts recording the call voice. The recording start request may be transmitted together with the telephone connection request. In this case, the call content recording unit 104 starts recording after the telephone connection unit 102 connects the call. Further, when receiving a recording end request from any of the telephone devices that are in a call, the call content recording unit 104 ends the recording and stores the recorded voice data in the call content storage unit 106. Call voice data may be stored in a format processed by a hash function or the like, or may be stored as voice data.

  In addition, when the call content recording unit 104 receives a recording start request or an end request from one of the telephone devices in a call, it notifies the telephone device other than the telephone device that recording is to be started or ended. You may make it perform. Alternatively, the recording start / end may be performed after receiving a message to permit the start / end of recording from the telephone device that has made the notification. Further, when the start / end of recording is not permitted, a notification to that effect may be sent to the telephone device that made the request.

(Related information recording unit 108, related information storage unit 110)
The related information recording unit 108 is a functional unit for recording information other than the call voice recorded in association with the call voice recording by the call content recording unit 104. The related information storage unit 110 is a storage unit that stores various data recorded by the related information recording unit 108. The related information recording unit 108 records, for example, a call start date / time, an end date / time of a call record, a telephone number of a calling party / incoming party, and the like. Alternatively, data other than voice (such as image data and document data transmitted and received by data communication) transmitted and received between telephone devices via the call content certification device 100 may be stored in the related information storage unit 110. Further, authentication information transmitted from the calling / calling side telephone device in the course of the authentication processing by the authentication processing unit 112 may be stored.

(Authentication processor 112)
The authentication processing unit 112 is a functional unit for performing mutual authentication with the calling side / incoming side telephone apparatus. For example, when receiving a telephone connection request from the calling side telephone device, the authentication processing unit 112 transmits an authentication request to the calling side telephone device. On the other hand, when authentication information such as an ID or a password is transmitted from the calling side telephone device, the authentication processing unit 112 executes mutual authentication processing by a predetermined authentication method using the transmitted authentication information. The mutual authentication process performed here may be realized by, for example, an authentication technique using a public key cryptosystem which is a well-known technique. When the authentication processing of the calling side telephone device is successful, the authentication processing unit 112 notifies the telephone connection unit 102 that the authentication is successful, and the telephone connection unit 102 performs call connection. Further, when the called telephone device responds to the call by the telephone connection unit 102, the authentication processing unit 112 transmits an authentication request to the called telephone device in the same manner as the calling side, thereby performing mutual authentication processing. Execute.

(Call certificate generation unit 114)
The call certification generation unit 114 is a functional unit for generating call certification data from call voice data stored in the call content storage unit 106. The call proof generation unit 114 generates, as a call proof, data obtained by adding an electronic signature to the call voice data stored in the call content storage unit 106 after the call content recording unit 104 finishes recording the call voice. The electronic signature may be realized by using public key cryptosystems such as RSA cryptography, ElGamal cryptography, and elliptic curve cryptography, which are well-known techniques. Further, the call certificate may be transmitted to the telephone device that requested the call record after generation, or may be stored in the call content verification device 100 and transmitted at the timing when the request from the telephone device is received. It may be.

  Further, the call certification generating unit 114 may generate a call certification using data other than the voice data. For example, the call start date / end date / time stored in the related information storage unit 110, the telephone number of the calling / calling side of the telephone, and the authentication information data such as the ID used for authentication of the telephone device can be used as the call voice An electronic signature may be applied to the data added to the data. Alternatively, the call certificate may be generated using communication data other than the call voice transmitted / received between the calling side telephone device and the called side telephone device.

  The configuration of the call content certification device 100 has been described above. Note that the telephone connection unit 102, the call content recording unit 104, the related information recording unit 108, the authentication processing unit 112, and the call certification generating unit 114 install a software program for executing the functions of these units in the call content certification device 100. It is also possible to realize this by using a dedicated hardware. Further, the software program may be executed by reading out a program stored in a computer-readable storage medium, or may be provided to the call content certification device 100 via a network or the like. Good. In addition, the call content storage unit 106 and the related information storage unit 110 may be configured by various storage media such as a semiconductor memory, an optical disk, and a magnetic disk, for example.

(Telephone devices 120 and 140)
Next, the configuration of the telephone devices 120 and 140 will be described with reference to FIG. In the present embodiment, the telephone devices 120 and 140 are described as having both functions of a calling side and a receiving side and having substantially the same configuration, but some functions are called. Only one of the calling side and the called side may be provided.

  FIG. 3 is a block diagram showing a schematic configuration of the telephone device 120 (or 140). As shown in FIG. 3, the telephone device 120 includes a telephone connection unit 122, an authentication processing unit 124, an input reception unit 126, a call record request unit 128, and a call record request reception unit 130. Although not shown, an input unit, a display unit, a voice input unit, and the like may be provided.

(Telephone connection unit 122)
The telephone connection unit 122 is a functional unit for requesting connection of a call to the call content certification device 100 and receiving a telephone call from the call content certification device 100. For example, the telephone connection unit 122 dials the telephone number of the call content certification device 100 input by a dial button or the like provided in the telephone device 120, requests the call content certification device 100 to connect the call, and requests the connection. The telephone number of the other party to call is transmitted to the call content certification device 100. Alternatively, when the authentication processing unit 124 performs authentication processing with the call content certification device 100, the telephone number may be transmitted after the authentication processing unit 124 is notified that the authentication is successful. .

  In addition, the telephone connection unit 122 transmits / receives call voice to / from the call content certification device 100 during a call. For example, the telephone connection unit 122 performs predetermined signal processing on an analog voice signal input from a voice input device such as a handset (not shown) provided in the telephone device 120 and converts the analog voice signal into a digital signal. The message is transmitted to the call content certification device 100 via the network 160. Conversely, the digital voice signal received from the call content certification device 100 is converted into an analog voice signal, subjected to signal processing, and then output as voice from the earpiece of the handset.

(Authentication processor 124)
The authentication processing unit 124 is a functional unit for performing mutual authentication with the call content certification device 100. The mutual authentication process executed here may be performed using, for example, an authentication technique using a public key cryptosystem or a secret key cryptosystem, which is a well-known technique. The authentication processing unit 124 may perform authentication processing using authentication information stored in a personal authentication device such as a USB token or an IC card connected to the telephone device 120.

(Input reception unit 126)
The input reception unit 126 receives instructions from a user that are input through an input interface (not shown) such as a dial button or a function button provided in the telephone device 120 or a keyboard or a pointing device connected to the telephone device 120. It is a functional part for. For example, the input reception unit 126 may notify the telephone connection unit 122 which dial button is pressed when a telephone number is input by pressing a dial button or the like. Alternatively, when an input requesting the start or end of call recording is made during a call by pressing a function button or the like, information indicating the input request content is notified to the call content recording unit 104. Also good.

(Call record request unit 128)
The call record request unit 128 is a functional unit that transmits a call content recording start request or a recording end request to the call content certification device 100 in response to an input from the user during a call. The user operates, for example, a start request / end request by operating an input interface (not shown) such as a dial button or a function button provided on the telephone device 120 or a keyboard or a pointing device connected to the telephone device 120. Can be input to the telephone device 120. The input start request / end request is notified to the call record request unit 128 by the input receiving unit 126. When receiving the request, the call record requesting unit 128 generates a message to be transmitted to the call content certification device 100 and transmits the message to the call content certification device 100 via the network 160. The call record request unit 128 may accept the recording start request / end request in a state where a call is connected to the telephone device that is the other party of the call by the telephone connection unit 122. Alternatively, the recording start request may be input together with a call connection request for the telephone connection unit 122.

(Call record request receiving unit 130)
The call record request receiving unit 130 is a functional unit for receiving notification information indicating that a call record start request or end request has been transmitted from the call content certification device 100. When the call record request receiving unit 130 receives the notification information from the call content certification device 100, the call record request receiving unit 130 displays a message or the like on a display unit (not shown) such as a display provided in the telephone device 120. The user who is talking may be notified that the recording start request / end request has been transmitted. Or you may make it output a voice message through the earpiece of the handset (not shown) with which the telephone apparatus 120 was equipped.

  In addition, when a user operates an input interface (not shown) such as a dial button or a function button provided on the telephone device 120 or a keyboard or a pointing device connected to the telephone device 120, a call recording start request / Whether or not to permit the termination request can be input, and the content input through the network 160 may be notified to the call content certification device 100. This makes it possible to start or end the recording of the call contents with the consent of all the callers.

  The configuration of the telephone device 120 has been described above. The call record requesting unit 128 and the call record request receiving unit 130 are not necessarily provided on both the calling side and the called side. For example, the call record request unit 128 may be provided only in the calling side telephone device, and the call record request receiving unit 130 may be provided only in the called side telephone device.

  In addition, the telephone connection unit 122, the authentication processing unit 124, the input reception unit 126, the call record request unit 128, and the call record request reception unit 130 are installed in the telephone device 120 by installing software programs that execute the functions of these units. It can be realized, or can be realized by dedicated hardware. The software program may be executed by reading out a program stored in a computer-readable storage medium, or may be provided to the telephone device 120 via a network or the like.

(Operation example of call content certification system 10)
Next, the operation of the above-described call content certification system 10 will be described with reference to FIG. Here, FIG. 4 is a sequence diagram showing an example of the operation of the call content certification system 10, and shows an operation example when a telephone call is made from the telephone device 120 to the telephone device 140.

  First, the telephone device 120 requests the call content certification device 100 to connect a call (step S200). Next, the authentication processing unit 112 of the call content certification device 100 makes an authentication request to the telephone device 120, and mutual authentication is performed between the call content certification device 100 and the telephone device 120 (step S202). The mutual authentication may be performed based on an authentication technique based on a public key cryptosystem using a personal authentication device connected to the telephone device 120, for example.

  When the mutual authentication is successful, the telephone device 120 transmits the telephone number of the telephone device 140 requesting connection to the call content certification device 100 (step S204). One or more telephone numbers may be designated. Also, here, a description will be given using a telephone number as information for designating the destination telephone device 140, but this is an example, and any information that can designate the telephone device 140 is used. Information in such a format may be used.

  In this example, the telephone number is transmitted after the authentication process. However, the telephone number may be transmitted before the authentication process is performed, that is, after a call connection is requested in step S200.

  Next, the telephone connection unit 102 of the call content certification device 100 sends a call to the telephone number received from the telephone device 120 to make a call (step S206). On the other hand, the called user responds to the call by operating the telephone device 140 (step S208).

  When the response from the telephone device 140 is received, the telephone connection unit 102 notifies the authentication processing unit 112 of the response. Then, the authentication processing unit 112 makes an authentication request to the telephone device 140 as in step S202, and mutual authentication processing is performed with the telephone device 140 (step S210).

  When the mutual authentication process is completed, the authentication processing unit 112 notifies the telephone connection unit 102 to that effect (step S212), and the telephone connection unit 102 completes the call connection process with the telephone device 140. As a result, a call connection is established between the telephone device 120 and the telephone device 140 via the call content certification device 100, and a call can be made (step S214).

  Here, a call recording start request is transmitted from the telephone device 120 to the call content certification device 100 in accordance with the input of the user who is talking on the telephone device 120 (step S216). Next, the call content recording unit 104 of the call content certification device 100 receives the call recording start request, and notifies the telephone device 140, which is the call partner, that the call recording is to be started (step S218). The telephone device 140 may display the information notified in step S218 on a display unit such as a display. Alternatively, a voice message may be generated, and the voice message may be output from an earpiece of a handset that outputs a call voice.

  Next, the telephone device 140 returns a response to the notification received in step S218 to the call content certification device 100 (step S220). At this time, the telephone device 140 may receive an input from the user for selecting whether to permit the start of call recording, and return the input content to the call content proving device 100.

  After receiving the response from the telephone device 140, the call content certification device 100 starts recording the call voice by the call content recording unit 104 (step S222). Here, the call content recording unit 104 may start recording the call voice only when receiving a response from the telephone device 140 to permit the start of call recording. Call voice data recorded by the call content recording unit 104 is stored in the call content storage unit 106. Further, the voice data of the call may be stored after being compressed by a hash function or the like. In addition to the call voice, the related information recording unit 108 may record the call start date and time, the end date and time, the telephone numbers of the telephone devices 120 and 140, and the like. Further, electronic data transmitted and received between the telephone device 120 and the telephone device 140 may be recorded in addition to the call voice.

  After a predetermined time has elapsed since the start of recording of the call voice in step S222, a call record end request is transmitted from the telephone device 120 to the call content certification device 100 (step S224). This may be transmitted in response to a user input or the like as in step S216, or may be transmitted together with a call disconnection request. When the call content recording unit 104 of the call content certification device 100 receives the end request, the call content recording unit 104 ends the recording of the call voice. At this time, as in the case of the start request in step S216, the telephone device 140 may be notified that the call recording is to be ended, and the recording may be ended after receiving a response from the telephone device 140.

  Next, the call proof generation unit 114 of the call content verification device 100 generates a call proof by applying an electronic signature to the call content data stored in the call content storage unit 106 (step S226). When generating a call certificate, an electronic signature including not only the call content data but also the call start date and time and the end date and time recorded by the related information recording unit 108 and the telephone numbers of the telephone devices 120 and 140 should be provided. May be. Alternatively, call certification data may be generated by performing an electronic signature on the electronic data transmitted and received between the telephone devices 120 and 140 in addition to the data for the call voice.

  Thereafter, the generated call certification data is transmitted from the call content certification device 100 to the telephone device 120 (step S228). The call certification data may be transmitted after the call ends, that is, after the call is disconnected. Alternatively, the call content certification device 100 may accumulate call certification data and transmit the call certification data to the telephone device 120 when a request is received from the telephone device 120.

  The call content certification system 10 according to the first embodiment of the present invention has been described above. According to such a configuration, each telephone device can make a call via the call content certification device, and can record the call content at a desired timing. As a result, it is possible to partially record the contents of the call, and the data of the call voice can be kept to a minimum as compared with the conventional method that records all calls from the call start to the call end. In addition, since only the necessary part of the conversation content can be recorded, there is no need to search for a part of data to be proved from a large amount of call data.

(Second Embodiment)
Next, a call content certification system according to the second embodiment of the present invention will be described. In the call content proof system according to the first embodiment, the call content proof device 100 performs the process of recording the call content between the calling side and the called side, but the call content according to the second embodiment. The proof system is different in that the telephone device that requested recording of the content of the call can record the content of the call.

  Since the call content certifying device according to the present embodiment has substantially the same configuration as the call content certifying device according to the first embodiment described above, a duplicate description is omitted. Hereinafter, the configuration of the telephone device according to the present embodiment will be described with reference to FIG. FIG. 5 is a block diagram illustrating a schematic configuration of the telephone device 320 according to the second embodiment.

(Telephone device 320)
As shown in FIG. 5, the telephone device 320 according to the second embodiment includes a telephone connection unit 322, an authentication processing unit 324, an input reception unit 326, a call record request unit 328, and a call record request reception unit 330. And a call content recording unit 332 and a call content storage unit 334. Among these, the telephone connection unit 322, the authentication processing unit 324, the input reception unit 326, the call record request unit 328, and the call record request reception unit 330 are the corresponding components of the telephone device 120 according to the first embodiment described above. Since they have substantially the same function, redundant description is omitted. The telephone device 320 according to the present embodiment includes a call content recording unit 332 and a call content storage unit 334 in addition to the components common to the telephone device 120 according to the first embodiment. To do. Hereinafter, the call content recording unit 332 and the call content storage unit 334 will be described.

  The call content recording unit 332 and the call content storage unit 334 have the same functions as the call content recording unit 104 and the call content storage unit 106 of the call content certification device 100 according to the first embodiment described above. That is, the call content recording unit 332 records a call voice transmitted / received between the telephone device 320 and the telephone device that is in a call. The recorded voice data is stored in the call content storage unit 334.

  As described above, in the present embodiment, by providing a configuration for recording the call voice in the telephone device 320, it is possible to record the call content in both the call content lighting device and the telephone device. Accordingly, only the data obtained by processing the call voice with a hash function or the like may be stored on the call content proving apparatus side to generate call proof data, and the call voice data may be stored on the telephone apparatus side. Thereby, in this embodiment, it is not necessary to secure a large amount of storage area for storing call voice data in the call content certification device.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

It is a figure which shows schematic structure of the call content certification | authentication system concerning the 1st Embodiment of this invention. It is a block diagram which shows schematic structure of the call content certification | authentication apparatus concerning the embodiment. It is a block diagram which shows schematic structure of the telephone apparatus concerning the embodiment. It is a sequence diagram which shows the flow of a process of the call content certification | authentication system concerning this embodiment. It is a block diagram which shows schematic structure of the telephone apparatus of the call content certification | authentication system concerning the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Call content certification | authentication system 100 Call content certification | authentication apparatus 102 Telephone connection part 104 Call content recording part 106 Call content storage part 108 Related information recording part 110 Related information storage part 112 Authentication processing part 114 Call certification generation part 120,140 Telephone apparatus 122 Telephone Connection unit 124 Authentication processing unit 126 Input reception unit 128 Call recording request unit 130 Call recording request reception unit 160 Network 320 Telephone device 322 Telephone connection unit 324 Authentication processing unit 326 Input reception unit 328 Call recording request unit 330 Call recording request reception unit 332 Call content recording unit 334 Call content storage unit

Claims (16)

A call content verification device for verifying the content of a call made between a plurality of telephone devices;
A calling side telephone device that requests a call connection to the call content certification device;
A called side telephone device in which a call is connected to the calling side telephone device by the call content certification device;
A call content proof system comprising:
The call content certification device
A telephone connection unit that connects a call between the calling side telephone device and the called side telephone device in response to a request from the calling side telephone device, and relays the call;
A call content recording unit for recording a call voice in response to a request transmitted from at least one of the calling side telephone device or the called side telephone device in a state where a call is connected by the telephone connection unit;
A call content storage unit for storing call voice data recorded by the call content recording unit as call content information;
A call certificate generating unit that generates a call certificate by adding an electronic signature to the call content information stored in the call content storage unit;
A call content proof system characterized by comprising: A call content certifying device for certifying the content of a call performed between a calling side telephone device and a called side telephone device,
A telephone connection unit that connects a call between the calling side telephone device and the called side telephone device in response to a request from the calling side telephone device, and relays the call;
A call content recording unit for recording a call voice in response to a request transmitted from at least one of the calling side telephone device or the called side telephone device in a state where a call is connected by the telephone connection unit;
A call content storage unit for storing call voice data recorded by the call content recording unit as call content information;
A call certificate generating unit that generates a call certificate by adding an electronic signature to the call content information stored in the call content storage unit;
A call content proof device comprising: A related information recording unit that records information related to the call content information as call related information;
The call content certifying device according to claim 2, wherein the call proof generating unit generates the call proof by adding an electronic signature to the call related information.   4. The call content certification device according to claim 3, wherein the call related information is information indicating a date and time when a call recorded as the call content information is performed.   4. The call content proving apparatus according to claim 3, wherein the call related information is data other than call voice transmitted and received between the calling side telephone apparatus and the called side telephone apparatus.   The call content proving apparatus according to claim 2, further comprising an authentication processing unit that performs an authentication process on the calling side telephone device and the called side telephone device.   The call content proof according to claim 6, wherein the authentication processing unit performs the authentication processing using a personal authentication device connected to the calling side telephone device or the called side telephone device, respectively. apparatus.   3. The call content recording unit notifies another telephone device that a call voice recording start request or recording end request has been received from any of the telephone devices during a call. The call content certification device described.   9. The call content recording unit starts or ends recording of the call voice after receiving a response to permit a recording start request or a recording end request from the other telephone device. The communication content certification device described in 1.   The call content certifying device according to claim 2, wherein the call content information is a hash value obtained from call voice data recorded by the call content recording unit. A telephone device connected to another telephone device via a call content certification device for certifying the content of the call,
A telephone connection unit for connecting a call to another telephone device via the call content verification device;
A call record requesting unit that requests the call content certifying device to start or end recording of a call content in a state in which a call is connected to the other telephone device via the call content certifying device;
A telephone device, comprising:   The telephone device according to claim 11, further comprising an authentication processing unit that performs an authentication process with the call content certification device.   The telephone apparatus according to claim 12, wherein the authentication processing unit performs authentication processing using authentication information stored in a personal authentication device. A call content recording unit for recording a call voice transmitted / received to / from the other telephone device;
A call content storage unit for storing the recorded call voice data;
The telephone device according to claim 11, further comprising: Computer
A call content certifying device for certifying the content of a call performed between a calling side telephone device and a called side telephone device,
A telephone connection unit that connects a call between the calling side telephone device and the called side telephone device in response to a request from the calling side telephone device, and relays the call;
A call content recording unit for recording a call voice in response to a request transmitted from at least one of the calling side telephone device or the called side telephone device in a state where a call is connected by the telephone connection unit;
A call content storage unit for storing call voice data recorded by the call content recording unit as call content information;
A call certificate generating unit that generates a call certificate by adding an electronic signature to the call content information stored in the call content storage unit;
A program for functioning as a call content certifying device. Computer
A telephone device connected to another telephone device via a call content certification device for certifying the content of the call,
A telephone connection unit for connecting a call to another telephone device via the call content verification device;
A call record requesting unit that requests the call content certifying device to start or end recording of a call content in a state in which a call is connected to the other telephone device via the call content certifying device; A program for functioning as a telephone device.

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