JP2018026770A - Relay device, call system, control method, and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a called side terminal to identify a calling side user while recording a voice call.SOLUTION: A relay device includes: a message control unit for transmitting, when a calling signal destined to a telephone number for relay, i.e. a telephone number received by the relay device is received from a calling terminal, a message including identification information on the calling terminal to a called terminal with which the telephone number for relay is associated in advance; and a relay control unit for establishing a call between the calling terminal and the called terminal if the calling signal is received from the called terminal.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a call relay technology for a voice call.

  In recent years, techniques for recording voice calls have been proposed. For example, a system in which a call is once received at a center and relayed to a predetermined terminal (see, for example, Patent Document 1) is applied to all incoming and outgoing calls. Through such processing, call recording can be systematically realized at the center.

JP-A-4-084433

  However, with such a technique, the telephone number of the caller cannot be notified to the terminal (terminal on the receiving side) as a relay destination. In such a case, the user of the terminal on the receiving side cannot determine where the call comes from at the time of receiving the call. For this reason, it is difficult for the user of the receiving terminal to determine whether or not to receive a call when an incoming call is received.

  In view of the above circumstances, an object of the present invention is to provide a technique that enables a caller terminal to be identified at a callee terminal while recording a voice call.

  According to one aspect of the present invention, when a calling signal addressed to a relay telephone number that is a telephone number for receiving an incoming call is received from a calling terminal, the receiving terminal that is associated with the relay telephone number in advance On the other hand, a message control unit that transmits a message including identification information of the calling terminal, and relay control that establishes a call between the calling terminal and the called terminal when a calling signal is received from the called terminal A relay device.

  One aspect of the present invention is the relay device, wherein the message includes control information indicating that an operation unit that accepts an operation to make a call to the telephone number is displayed on the screen at the receiving terminal.

  One aspect of the present invention is the relay device, wherein the message control unit transmits the message using an SMS (Short Message Service) protocol.

  One aspect of the present invention is a call system including a relay device and a receiving terminal, and the relay device receives a call signal addressed to a relay telephone number that is a telephone number for receiving an incoming call at the own device. The message control unit that transmits a message including the identification information of the calling terminal to the receiving terminal associated with the relay telephone number in advance, and the calling signal is received from the receiving terminal. A relay control unit that establishes a call between the transmitting terminal and the receiving terminal, and the receiving terminal displays a message display unit that displays the content of the message transmitted from the relay device; And a communication control unit that transmits a call signal to the relay device in response to a user operation corresponding to the message.

  One aspect of the present invention is the call system described above, further including a recording device including a recording unit that records a voice of a call in a call established between the transmitting terminal and the receiving terminal.

  According to one aspect of the present invention, when a calling signal addressed to a relay telephone number that is a telephone number for receiving an incoming call is received from a calling terminal, the receiving terminal that is associated with the relay telephone number in advance On the other hand, a message control step for transmitting a message including identification information of the calling terminal, and a relay control for establishing a call between the calling terminal and the receiving terminal when a calling signal is received from the receiving terminal. And a control method.

  According to one aspect of the present invention, when a calling signal addressed to a relay telephone number that is a telephone number for receiving an incoming call is received from a calling terminal, the receiving terminal that is associated with the relay telephone number in advance On the other hand, a message control step for transmitting a message including identification information of the calling terminal, and a relay control for establishing a call between the calling terminal and the receiving terminal when a calling signal is received from the receiving terminal. Is a computer program for causing a computer to execute the steps.

  According to the present invention, it is possible to identify a user on the calling side at the terminal on the receiving side while realizing recording of a voice call.

1 is a diagram illustrating a system configuration of a call system 100. FIG. 2 is a functional block diagram showing a functional configuration of a recording device 11. FIG. 3 is a functional block diagram showing a functional configuration of a relay device 12. FIG. It is a figure which shows the specific example of a connection destination table. 6 is a diagram illustrating a display example when a notification message generated by the message control unit 126 is displayed on the receiving terminal 50. FIG. 3 is a functional block diagram showing a functional configuration of a receiving terminal 50. FIG. 3 is a sequence chart showing a specific example of the operation of the call system 100.

  FIG. 1 is a diagram illustrating a system configuration of the call system 100. The call system 100 is connected to the calling terminals 40 (40-1 and 40-2). The calling terminal 40 is a call terminal used by a calling user. In the present embodiment, a fixed call terminal (40-1) and a mobile call terminal (40-2) are shown as specific examples of the transmission terminal 40.

  The call system 100 includes a relay system 10, a public switched telephone network 20, a mobile communication network 30, and a receiving terminal 50. When the relay system 10 receives the call signal from the calling terminal 40, the relay system 10 relays the call between the calling terminal 40 and the receiving terminal 50. The relay system 10 records the voice of a call performed between the transmission terminal 40 and the reception terminal 50. The public switched telephone network 20 is a communication network composed of public switched lines. The mobile communication network 30 is a communication network composed of mobile communication lines. The fixed call terminal 40-1 is connected to the public switched telephone network 20. Mobile call terminal 40-2, mobile call terminal 50-1 and mobile call terminal 50-2 are connected to mobile communication network 30. The receiving terminal 50 is a call terminal used by the user on the receiving side. In the present embodiment, mobile call terminals (50-1 and 50-2) are shown as specific examples of the receiving terminal 50.

  The relay system 10 includes a recording device 11 and a relay device 12. The recording device 11 records the voice of a call performed between the transmission terminal 40 and the reception terminal 50. When the relay device 12 receives the call signal from the calling terminal 40, the relay device 12 relays the call between the calling terminal 40 and the receiving terminal 50. Hereinafter, each device provided in the relay system 10 will be described in detail.

  FIG. 2 is a functional block diagram showing a functional configuration of the recording device 11. The recording device 11 includes a first communication unit 111, a second communication unit 112, a relay unit 113, a storage unit 114, and a recording unit 115. The functions of the relay unit 113 and the recording unit 115 are realized by a CPU (Central Processing Unit) executing a program.

  Note that all or some of the functions realized by the relay unit 113 and the recording unit 115 are performed using hardware such as an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA). It may be realized. The above-described program may be recorded on a computer-readable recording medium. The computer-readable recording medium is, for example, a portable medium such as a flexible disk, a magneto-optical disk, a ROM, a CD-ROM, or a storage device such as a hard disk built in the computer system. The program described above may be transmitted via a telecommunication line.

  The first communication unit 111 communicates with the calling terminal 40 (40-1) via the public switched telephone network 20. The first communication unit 111 communicates with the transmission terminal 40 (40-2) via the public switched telephone network 20 and the mobile communication network 30.

The second communication unit 112 communicates with the receiving terminal 50 (mobile call terminals 50-1 and 50-2) via the public switched telephone network 20 and the mobile communication network 30.
The relay unit 113 performs processing for relaying a call between the transmission terminal 40 and the reception terminal 50.

  The storage unit 114 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. A storage unit 114 stores recording data. The recorded data stores voice data indicating the voice of the recorded call, identification information of the calling terminal 40 in the recorded call, and identification information of the receiving terminal 50 in the recorded call in association with each other. The identification information of the transmitting terminal 40 and the receiving terminal 50 is, for example, a telephone number. The identification information of the transmitting terminal 40 and the receiving terminal 50 may be, for example, the name of the user of each terminal associated with the telephone number in advance or the user's affiliation (organization name).

  The recording unit 115 generates recording data by recording the voice of the call relayed by the relay unit 113. The recording unit 115 records the generated recording data in the storage unit 114 in association with the identification information of the transmitting terminal 40 and the receiving terminal 50 in the recorded call.

  FIG. 3 is a functional block diagram illustrating a functional configuration of the relay device 12. The relay device 12 includes a first communication unit 121, a second communication unit 122, a connection destination storage unit 123, a relay control unit 124, a message storage unit 125, and a message control unit 126. The functions of the relay control unit 124 and the message control unit 126 are realized by the CPU executing a program.

  Note that all or some of the functions realized by the relay control unit 124 and the message control unit 126 may be realized by using hardware such as an ASIC, PLD, or FPGA. The above-described program may be recorded on a computer-readable recording medium. The computer-readable recording medium is, for example, a portable medium such as a flexible disk, a magneto-optical disk, a ROM, a CD-ROM, or a storage device such as a hard disk built in the computer system. The program described above may be transmitted via a telecommunication line.

  The first communication unit 121 communicates with the calling terminal 40 (40-1) via the public switched telephone network 20. The first communication unit 121 communicates with the calling terminal 40 (40-2) via the public switched telephone network 20 and the mobile communication network 30.

The second communication unit 122 communicates with the receiving terminal 50 (mobile call terminals 50-1 and 50-2) via the public switched telephone network 20 and the mobile communication network 30.
The connection destination storage unit 123 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. The connection destination storage unit 123 stores a connection destination table. FIG. 4 is a diagram illustrating a specific example of the connection destination table. The connection destination table has a plurality of connection destination records 71. The connection destination record 71 has a relay telephone number and a calling number.

  The relay telephone number is a telephone number previously assigned to the receiving terminal 50 in the relay device 12. The relay telephone number is a telephone number that is known as the telephone number of the receiving terminal 50 to the user of the transmitting terminal 40. However, the relay telephone number is a telephone number assigned to the relay device 12 in the actual public switched telephone network 20 and the mobile communication network 30. Therefore, when a call is made to the relay telephone number, the call is made to the relay device 12 instead of the receiving terminal 50.

  The calling number is a telephone number assigned to the receiving terminal 50 in the actual public switched telephone network 20 and the mobile communication network 30. Therefore, when a call is made to the calling number, the call is made to the receiving terminal 50.

  For example, the relay telephone number n11 is a number that is known to the user of the calling terminal 40 as being the telephone number of the receiving terminal 50 whose actual telephone number is n12. Phone number. Therefore, when a call is made to the relay telephone number n11, a call is actually made to the relay device 12. However, as will be described later, the relay control unit 124 makes a call to the telephone number n12 associated with the relay telephone number n11 by referring to the connection destination record. Then, the relay control unit 124 relays the call between the receiving terminal 50 having the telephone number n12 and the transmitting terminal 40.

Returning to FIG. 3, the description will be continued. The relay control unit 124 relays a call between the transmission terminal 40 and the reception terminal 50 based on the connection destination table stored in the connection destination storage unit 123.
The message storage unit 125 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. The message storage unit 125 stores message data. The message data includes a wording of content inquiring that the user of the receiving terminal 50 responds to the call from the calling terminal 40 by embedding the caller telephone number and the relay telephone number. For example, the message data may be configured as follows.
“Incoming call from (caller's phone number). To answer, please call the following number (relay phone number)”

  Note that the value of the telephone number of the calling terminal 40 is embedded in the (caller telephone number) part included in the message data. Further, the value of the relay telephone number, which is the telephone number of the destination called by the transmission terminal 40, is embedded in the (relay telephone number) part included in the message data.

  When the relay control unit 124 obtains the correspondence between the relay telephone number and the calling number, the message control unit 126 is a message (hereinafter referred to as “notification message”) transmitted to the receiving terminal 50 corresponding to the calling number. ) Is generated. The message control unit 126 generates a notification message based on the message data stored in the message storage unit 125. The message control unit 126 transmits the generated notification message to the receiving terminal 50 using a protocol capable of transmitting the telephone number as a destination. A specific example of such a protocol is SMS (Short Message Service). The notification message includes control information. This control information is information for controlling the call processing to (relay phone number) when the selection operation is performed on (relay phone number) at the receiving terminal 50, for example. Also good.

  FIG. 5 is a diagram showing a display example when the notification message generated by the message control unit 126 is displayed on the receiving terminal 50 (mobile call terminals 50-1 and 50-2). In FIG. 5, “080-XXXX-YYYY” is embedded as the caller telephone number, and “03-AAAAA-BBBB” is embedded as the relay telephone number. The relay telephone number “03-AAAAA-BBBB” is provided with a link according to the control information. This link is a link indicating that a call is made to the relay telephone number (the telephone number of the relay apparatus 12) by the selection operation. In this call, control information for instructing the relay apparatus 12 to connect a call to the caller telephone number may be transmitted to the relay apparatus 12 that is a call destination. The transmission of such control information may be included in the notification message generated by the message control unit 126 as control information.

FIG. 6 is a functional block diagram showing a functional configuration of the receiving terminal 50. The incoming terminal 50 includes a communication unit 51, a display unit 52, and a control unit 53. The function of the control unit 53 is realized by the CPU executing a program.
The communication unit 51 communicates with other devices via the mobile communication network 30.
The display unit 52 is an image display device such as a liquid crystal display or an organic EL (Electro Luminescence) display.
The control unit 53 controls the receiving terminal 50. For example, when a notification message is received from the relay device 12, the control unit 53 causes the display unit 52 to display the content of the received notification message. For example, the control unit 53 transmits a call signal to the relay device 12 when the user instructs the call to the relay device 12 according to the content of the notification message.

  FIG. 7 is a sequence chart showing a specific example of the operation of the call system 100. First, the user issues a call instruction to the relay telephone number at the calling terminal 40 (step S101). At this time, the user issues a call instruction in consideration of making a call to the receiving terminal 50, but since the relay telephone number is actually specified, the call instruction to the relay device 12 is executed. The calling terminal 40 transmits a calling signal to the designated relay telephone number (step S102). A specific example of the calling signal is an INVITE signal.

  When the relay device 12 receives the call signal from the calling terminal 40, the relay device 12 performs call processing according to the received call signal (step S103). The call process executed in the relay apparatus 12 is a process for establishing a call between the transmission terminal 40 that is the transmission source of the call signal and the own apparatus. As a specific example of call processing, there is processing for transmitting a 100 Trying signal, a 180 Ringing signal, and a 200 OK signal in response to a received INVITE signal. When the call processing is completed, a call is established between the calling terminal 40 and the relay device 12 (step S104). When a call is established with the transmission terminal 40, the relay control unit 124 of the relay device 12 transmits a calling guidance signal to the transmission terminal 40 (step S105). The calling guidance signal is a signal recorded in advance in the storage device in the relay device 12. The in-calling guidance signal is reproduced by the calling terminal 40 to output a voice. This voice is, for example, a voice that allows the user of the transmitting terminal 40 to recognize that the user is waiting for a response from the other party (the user of the receiving terminal 50). For example, the in-calling guidance signal may be a signal for outputting a sound “We are calling now. Please wait for a while”. The in-calling guidance signal may be continuously transmitted until a predetermined timing (for example, until a call is established between the transmission terminal 40 and the reception terminal 50).

  The relay control unit 124 of the relay device 12 acquires the telephone number (relay telephone number) that is the call destination of the call signal received in step S102. The relay control unit 124 reads the calling number associated with the acquired relay telephone number from the connection destination table. The message control unit 126 of the relay device 12 generates a notification message to be transmitted with respect to the acquired calling number (step S106). The message control unit 126 transmits the generated notification message to the calling party number (addressed to the receiving terminal 50) acquired by the relay control unit 124 (step S107).

  When receiving the notification message from the relay device 12, the receiving terminal 50 displays the content of the received notification message on the screen of the own device (step S108). The user of the receiving terminal 50 determines whether or not to accept the call by the calling terminal 40 according to the content of the displayed notification message (particularly the telephone number of the calling terminal 40). If the user of the receiving terminal 50 determines to accept the call from the calling terminal 40, the user of the receiving terminal 50 instructs the receiving terminal 50 to place a call to the relay device 12 (step S109). Such an instruction may be performed, for example, by selecting and operating a link displayed on the screen. The receiving terminal 50 transmits a calling signal to the relay telephone number in response to a user instruction (step S110). The call signal may include information indicating the telephone number of the calling terminal 40, for example. This call signal may include, for example, identification information (for example, a telephone number) of the calling terminal 40 and control information indicating that a call with the calling terminal 40 is connected.

  When receiving the call signal from the receiving terminal 50, the relay control unit 124 of the relay device 12 executes a process (call process) for establishing a call between the receiving terminal 50 and the calling terminal 40 (step S111). . The relay control unit 124 may determine the transmission terminal 40 and the reception terminal 50 that are targets for establishing a call by any process. For example, the combination of the calling terminal 40 and the relay telephone number included in the calling signal received in step S102, the telephone number of the receiving terminal 50 included in the calling signal received in step S110, and the connection destination table , May be determined based on. For example, the determination may be made based on control information included in the call signal received in step S110. When the relay control unit 124 executes call processing, a call is established between the transmission terminal 40 and the reception terminal 50 (step S112). Thereafter, the user of the calling terminal 40 and the user of the receiving terminal 50 can make a call. The recording unit 115 of the recording device 11 records the voice of a call performed between the transmitting terminal 40 and the receiving terminal 50 (step S113).

  In the relay system 10 configured as described above, the voice of a call relayed between the transmitting terminal 40 and the receiving terminal 50 can be recorded by the recording device 11. Further, when a call is made from the calling terminal 40, the telephone number of the calling terminal 40 can be notified to the receiving terminal 50 before the call is established. The user of the receiving terminal 50 can determine whether or not to establish a call at the receiving terminal 50 based on the telephone number of the transmitting terminal 40.

<Modification>
If the call control signal is not received from the receiving terminal 50 even after a predetermined time has elapsed after transmitting the notification message to the receiving terminal 50 in step S107, the relay control unit 124 makes a call to the receiving terminal 50. May be. The relay control unit 124 may disconnect the call after leaving the incoming call, for example, so-called one-off. In this case, there is an increased possibility that the user of the receiving terminal 50 pays attention to the receiving terminal 50 by an incoming operation such as sound or vibration corresponding to the incoming call and notices the presence of the notification message. The relay control unit 124 may establish a call with the receiving terminal 50 after making the call, and may transmit a predetermined voice message to the receiving terminal 50. For example, the predetermined voice message may be a voice message for prompting confirmation of the notification message. For example, a voice message such as “There was an incoming call from (caller's phone number). Please confirm because a notification message was sent for this incoming call.” By transmitting such a voice message, the user of the receiving terminal 50 is more likely to notice the presence of the notification message. The predetermined voice message may be a voice message for urging to establish a call with the calling terminal 40, for example. For example, a voice message such as “There was an incoming call from (caller's phone number). If you answer this incoming call, please wait. If you do not answer this incoming call, please hang up.” In this case, the relay control unit 124 establishes a call between the relay device 12 and the receiving terminal 50 even after a predetermined time (for example, several seconds, 5 seconds, 10 seconds, etc.) has passed since the voice message was transmitted. Otherwise, a call may be established between the calling terminal 40 and the receiving terminal 50.

DESCRIPTION OF SYMBOLS 10 ... Relay system, 11 ... Recording apparatus, 12 ... Relay apparatus, 20 ... Public switched telephone network, 30 ... Mobile communication network, 40 ... Originating terminal, 50 ... Incoming terminal, 111 ... First communication part, 112 ... Second Communication unit, 113 ... Relay unit, 114 ... Storage unit, 115 ... Recording unit, 121 ... First communication unit, 122 ... Second communication unit, 123 ... Connection destination storage unit, 124 ... Relay control unit, 125 ... Message storage unit 126: Message control unit

Claims (7)

When a calling signal addressed to a relay telephone number that is a telephone number for receiving an incoming call is received from the calling terminal, the calling terminal of the calling terminal is preliminarily associated with the relay telephone number. A message control unit for transmitting a message including identification information;
When a call signal is received from the receiving terminal, a relay control unit that establishes a call between the calling terminal and the receiving terminal;
A relay device comprising:   The relay device according to claim 1, wherein the message includes control information indicating that an operation unit that accepts an operation to make a call to the telephone number is displayed on the screen at the receiving terminal.   The relay apparatus according to claim 1, wherein the message control unit transmits the message using an SMS (Short Message Service) protocol. A call system comprising a relay device and a receiving terminal,
The relay device is
When a calling signal addressed to a relay telephone number that is a telephone number for receiving an incoming call is received from the calling terminal, the calling terminal of the calling terminal is preliminarily associated with the relay telephone number. A message control unit for transmitting a message including identification information;
When a call signal is received from the receiving terminal, a relay control unit that establishes a call between the calling terminal and the receiving terminal;
With
The receiving terminal is
A message display unit for displaying the content of the message transmitted from the relay device;
A communication control unit that transmits a call signal to the relay device in response to a user operation corresponding to the message;
A call system comprising:   The call system according to claim 4, further comprising a recording device including a recording unit that records a voice of a call in a call established between the transmitting terminal and the receiving terminal. When a calling signal addressed to a relay telephone number that is a telephone number for receiving an incoming call is received from the calling terminal, the calling terminal of the calling terminal is preliminarily associated with the relay telephone number. A message control step for transmitting a message including identification information;
When a call signal is received from the receiving terminal, a relay control step for establishing a call between the calling terminal and the receiving terminal;
A control method. When a calling signal addressed to a relay telephone number that is a telephone number for receiving an incoming call is received from the calling terminal, the calling terminal of the calling terminal is preliminarily associated with the relay telephone number. A message control step for transmitting a message including identification information;
When a call signal is received from the receiving terminal, a relay control step for establishing a call between the calling terminal and the receiving terminal;
A computer program for causing a computer to execute.