JP2018026771A - Call system, relay device, control method, and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow an outside line device to identify a calling side user while transferring a call to the outside line device.SOLUTION: A call system includes a relay device and a called terminal. The relay device includes: a message control unit for transmitting, when a calling signal destined to a representative number, 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 which is an outside line terminal registered as a transfer destination in advance; and a relay control unit for establishing a call between the calling terminal and the called terminal when the calling signal is received from the called terminal. The called terminal includes: a message display unit for displaying contents of a message transmitted by the relay device; and a communication control unit for transmitting a calling signal to the relay device in response to a user's operation corresponding to the message.SELECTED DRAWING: Figure 1

Description

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

  2. Description of the Related Art In recent years, an extension switch is provided with a function for ringing a preset extension and ringing an external line such as a mobile phone. When there is a response from the outside line machine, the call is realized by using a method (for example, see Patent Document 1) in which the call is once received at the center and relayed to the outside line machine.

JP-A-4-084433

  However, with such a technique, the telephone number of the caller cannot be notified to the outside line machine serving as the relay destination. In such a case, the user of the outside line machine cannot determine where the call is coming from at the time of reception. Therefore, it is difficult for a user of an outside line machine 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 user on the outside line to identify a user on the transmission side while realizing transfer of a call to the outside line.

  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 representative number that is a telephone number for receiving an incoming call from the own device. Then, a message control unit that transmits a message including identification information of the calling terminal to a receiving terminal that is an external line registered in advance as a transfer destination, and a calling signal is received from the receiving terminal And a relay control unit that establishes a call between the transmitting terminal and the receiving terminal, the receiving terminal displaying a message content transmitted from the relay device, and the message And a communication control unit that transmits a call signal to the relay device in response to a user operation according to the communication system.

  One aspect of the present invention is the call system described above, wherein when the call signal is received from the calling terminal, the relay control unit sends one or more extension machines registered in advance to the own device. A call signal is transmitted.

  According to one aspect of the present invention, when a call signal addressed to a representative number that is a telephone number for receiving an incoming call is received from a calling terminal, the calling terminal that is an external line device registered in advance as a transfer destination A message control unit that transmits a message including identification information of the calling terminal; and a relay control unit that establishes a call between the calling terminal and the receiving terminal when a calling signal is received from the receiving terminal; Are relay devices.

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

  One aspect of the present invention is a control method performed by a call system including a relay device and a receiving terminal, wherein the relay device receives a call signal addressed to a representative number that is a telephone number for receiving an incoming call on the own device. When received from the calling terminal, a message control step of transmitting a message including identification information of the calling terminal to the called terminal that is an external line registered in advance as a transfer destination; and A message display step for displaying the content of a message transmitted from a device, and a communication control step for transmitting a call signal to the relay device in response to a user operation corresponding to the message by the receiving terminal; A relay control step in which the relay device establishes a call between the calling terminal and the receiving terminal when a calling signal is received from the receiving terminal; It is.

  According to one aspect of the present invention, a call signal addressed to a representative number, which is a telephone number for receiving an incoming call at its own device, is transmitted to a computer included in a call system including a relay device and a receiving terminal. When received from a terminal, a message control step of transmitting a message including identification information of the calling terminal to a receiving terminal which is an external line registered in advance as a transfer destination, and the receiving terminal includes the relay device A message display step for displaying the content of a message transmitted from the communication terminal, and a communication control step in which the receiving terminal transmits a call signal to the relay device in response to a user operation corresponding to the message, When the relay device receives a call signal from the receiving terminal, the relay control step is executed to establish a call between the calling terminal and the receiving terminal. It is because of the computer program.

  According to the present invention, it is possible to identify a user on the calling side in an outside line machine while realizing transfer of a call to the outside line machine.

1 is a diagram illustrating a system configuration of a call system 100. FIG. 3 is a functional block diagram showing a functional configuration of the relay device 10. FIG. It is a figure which shows the specific example of a transfer destination table. 6 is a diagram illustrating a display example when a notification message generated by the message control unit 106 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 device 10, a public switched telephone network 20, a mobile communication network 30, a receiving terminal 50, and an extension device 60. When the relay device 10 receives the call signal from the calling terminal 40, the relay device 10 relays the call between the calling terminal 40, the receiving terminal 50 and the extension device 60. 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 and receiving terminal 50 are connected to mobile communication network 30. The receiving terminal 50 is a call terminal (external line machine) used by the user on the receiving side.

  FIG. 2 is a functional block diagram illustrating a functional configuration of the relay device 10. The relay device 10 includes a first communication unit 101, a second communication unit 102, a transfer destination storage unit 103, a relay control unit 104, a message storage unit 105, and a message control unit 106. The functions of the relay control unit 104 and the message control unit 106 are realized by a CPU (Central Processing Unit) executing a program.

  Note that all or some of the functions realized by the relay control unit 104 and the message control unit 106 are implemented by hardware such as an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), or an FPGA (Field Programmable Gate Array). It may be realized using. 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 101 communicates with the calling terminal 40 (40-1) via the public switched telephone network 20. The first communication unit 101 communicates with the transmission terminal 40 (40-2) and the reception terminal 50 via the public switched telephone network 20 and the mobile communication network 30.

The second communication unit 102 communicates with the extension device 60 via an extension communication network or a LAN (Local Area Network).
The transfer destination storage unit 103 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. The transfer destination storage unit 103 stores a transfer destination table. FIG. 3 is a diagram illustrating a specific example of the transfer destination table. The transfer destination table has a plurality of transfer destination records 71. The transfer destination record 71 has a transfer destination number value.

  The transfer destination number is a telephone number of an external line machine (incoming terminal 50) that is a destination to which an incoming call is transferred in the relay apparatus 10.

Returning to FIG. 2, the description will be continued. The relay control unit 104 relays a call between the transmission terminal 40 and the reception terminal 50 based on the transfer destination table stored in the transfer destination storage unit 103. The relay control unit 104 also relays a call between the calling terminal 40 and the extension device 60. For example, the relay control unit 104 may establish a call between the calling terminal 40 and the device that is first established with the relay device 10 among the receiving terminal 50 and the extension device 60.
The message storage unit 105 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. The message storage unit 105 stores message data. The message data includes a wording for inquiring the user of the receiving terminal 50 to respond to the call from the calling terminal 40 by embedding the caller telephone number and the representative 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 (representative 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. In addition, the value of the telephone number assigned to the relay device 10 is embedded in the (representative number) portion included in the message data.

  When the call control signal is received by the relay control unit 104, the message control unit 106 transmits a message (hereinafter referred to as a destination terminal 50) corresponding to each telephone number registered in the transfer destination table as a transfer destination number. "Notification message"). The message control unit 106 generates a notification message based on the message data stored in the message storage unit 105. The message control unit 106 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 may be information for controlling the call processing to (representative number) by performing a selection operation on (representative number) at the receiving terminal 50, for example.

  FIG. 4 is a diagram illustrating a display example when the notification message generated by the message control unit 106 is displayed on the receiving terminal 50. In FIG. 4, “080-XXXX-YYYY” is embedded as the caller telephone number, and “03-AAAAA-BBBB” is embedded as the representative number. The representative 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 representative number (the telephone number of the relay device 10) by performing the selection operation. In this call, control information for instructing the relay apparatus 10 to connect a call to the caller telephone number may be transmitted to the relay apparatus 10 that is a call destination. The transmission of such control information may be included in the notification message generated by the message control unit 106 as control information.

FIG. 5 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 the notification message is received from the relay device 10, 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 10 when the user instructs the relay device 10 to make a call according to the content of the notification message.

  FIG. 6 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 representative number at the calling terminal 40 (step S101). The calling terminal 40 transmits a calling signal to the designated representative number (step S102). A specific example of the calling signal is an INVITE signal.

  When receiving the call signal from the calling terminal 40, the relay device 10 performs call processing according to the received call signal (step S103). The call process executed in the relay apparatus 10 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 10 (step S104). When a call is established with the transmission terminal 40, the relay control unit 104 of the relay device 10 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 10. 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 calling guidance signal may be a general calling sound. 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 104 of the relay device 10 transmits a calling signal to the extension machine 60 (step S106). The transmission of the calling signal may be realized by executing forking, for example. Further, the relay control unit 104 reads the transfer destination number registered in the transfer destination table from the transfer destination storage unit 103. The message control unit 106 of the relay device 10 generates a notification message to be transmitted to the acquired transfer destination number (step S107). The message control unit 106 transmits the generated notification message to the transfer destination number (addressed to the receiving terminal 50) acquired by the relay control unit 104 (step S108).

  Upon receiving the notification message from the relay device 10, the receiving terminal 50 displays the content of the received notification message on the screen of the own device (step S109). 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 make a call to the relay device 10 (step S110). 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 representative number in accordance with a user instruction (step S111). 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 104 of the relay device 10 executes a process (call process) for establishing a call between the receiving terminal 50 and the calling terminal 40 (step S112). . As the relay control unit 104 executes call processing, a call is established between the calling terminal 40 and the receiving terminal 50 (step S113). Thereafter, the user of the calling terminal 40 and the user of the receiving terminal 50 can make a call.

  In the relay device 10 configured as described above, an incoming call (calling signal) from the calling terminal 40 can be transferred to the receiving terminal 50 which is an external line machine. 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.

DESCRIPTION OF SYMBOLS 10 ... Relay apparatus, 20 ... Public switched telephone network, 30 ... Mobile communication network, 40 ... Originating terminal, 50 ... Incoming terminal, 60 ... Extension machine, 101 ... First communication part, 102 ... Second communication part, 103 ... Transfer destination storage unit, 104 ... Relay control unit, 105 ... Message storage unit, 106 ... Message control unit

Claims (7)

A call system comprising a relay device and a receiving terminal,
The relay device is
When a calling signal addressed to a representative number that is a telephone number that receives an incoming call is received from the calling terminal, the identification information of the calling terminal is given to the receiving terminal that is an external line registered in advance as a transfer destination. A message control unit for transmitting a message including
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:   2. The call system according to claim 1, wherein when the call signal is received from the call terminal, the relay control unit transmits a call signal to one or a plurality of extensions registered in advance in the own device. . When a calling signal addressed to a representative number that is a telephone number that receives an incoming call is received from the calling terminal, the identification information of the calling terminal is given to the receiving terminal that is an external line registered in advance as a transfer destination. A message control unit for transmitting a message including
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 3, 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 3 or 4, wherein the message control unit transmits the message by an SMS (Short Message Service) protocol. A control method performed by a call system including a relay device and a receiving terminal,
When the relay device receives a call signal addressed to a representative number, which is a telephone number that receives an incoming call, from the caller terminal, the caller terminal that is an external line device registered in advance as a transfer destination A message control step of transmitting a message including identification information of the calling terminal;
A message display step in which the receiving terminal displays the content of the message transmitted from the relay device;
A communication control step in which the receiving terminal transmits a call signal to the relay device in response to a user operation corresponding to the message;
When the relay device receives a call signal from the receiving terminal, a relay control step for establishing a call between the calling terminal and the receiving terminal;
A control method. For a computer provided in a call system comprising a relay device and a receiving terminal,
When the relay device receives a call signal addressed to a representative number, which is a telephone number that receives an incoming call, from the caller terminal, the caller terminal that is an external line device registered in advance as a transfer destination A message control step of transmitting a message including identification information of the calling terminal;
A message display step in which the receiving terminal displays the content of the message transmitted from the relay device;
A communication control step in which the receiving terminal transmits a call signal to the relay device in response to a user operation corresponding to the message;
When the relay device receives a call signal from the receiving terminal, a relay control step for establishing a call between the calling terminal and the receiving terminal;
A computer program for running.