System and method for providing wireless captioned telephone service

SYSTEM AND METHOD FOR PROVIDING WIRELESS CAPTIONED TELEPHONE SERVICE

The present invention uses a circuit-eased voice service of a mobile communication network to provide a wireless captioning telephone service among the types of telecommunication relay service (hereinafter referred to as 'TRS'): Hereinafter referred to as 'WCTS'), it relates to a system, a terminal device, and a service providing method, which provides the same method of operation of a portable terminal as that of the general public when the hearing-impaired person makes a call with the general public, thereby increasing convenience and enabling utterance. By providing a way for the general public to make a direct call to the hearing-impaired person, rather than making an indirect call using the relay center's representative number, it is possible to keep the confidentiality of the hearing-impaired person to the person talking to the person making a call. A service providing system, terminal device, and service characterized by a service that provides the success rate of an incoming call at the same level as that of the general public using the line voice service of the mobile communication network even when a person with speech-capable hearing impairment receives an incoming call service from WCTS it's about how

Among the TRS currently provided, WCTS is an advanced form of CTS (Captioning Telephone Service), and it delivers caption data and voice data that are textualized by the relay center to the voice data of the user who is talking with the hearing-impaired and the hearing-impaired who can speak it. It is a relay service that delivers the voice data of the hearing impaired who can speak to the other user as it is. The relay service uses a method of transmitting voice data using an existing wired/wireless voice communication network and transmitting caption data using a data network.

In addition, the relay service is a method for a person with a hearing impairment who can speak, in a method for making a call, after executing a separate application program on a device connected to the Internet, inputting the phone number of the other party to make a call, and inputting their own phone number When transmitted to the relay center, the relay center makes a call to the relay agent, the counterpart, and the hearing-impaired person, respectively, and creates a voice call path. There are inconveniences to be had.

And in the method of making a call to the speech-capable deaf person, the other party cannot directly dial the speech-capable deaf person's phone number, and after making a call to the relay center, the ARS or relay agent answers the phone number of the speech-capable deaf person. Because the other party has to use DTMF (Dual Tone Multiple Frequency) to input or call directly, the procedure is complicated and cumbersome. Therefore, there is a feeling of pressure to expose one's disability.

Also, from the standpoint of a portable terminal for the hearing impaired, CTS can be used using an application that applies mobile VoIP (mVoIP) to a smartphone, a wireless portable terminal device, due to the development of mobile communication technology. In order to avoid the problem of power (battery) consumption of the terminal due to frequent communication with the mobile communication packet network, and the need to use a separate application program user interface (UI) for sending and receiving calls, the unique dialer function provided by the smartphone has been improved. There are problems such as a disadvantage that it cannot be used and the loss of an incoming call due to the absence of a paging (incoming) function of the current mobile communication packet network.

<p><patcit num="0001"><text>Republic of Korea Patent Publication No. 10-2010-0050959 Communication system for deaf person</text></patcit></p>

<p>The present invention has been devised to solve the above problems, and an object of the present invention is to provide a speech-capable deaf person with the same method of using a phone as a general public by using the phone book stored in their portable terminal. It is to provide a WCTS terminal device that provides a function for making a direct call to the other party, and has a function of checking the phone number of the other party when an incoming call is received and receiving a call.</p><p>It is also an object of the present invention to provide a WCTS server system that provides a function to make a direct call to both the hearing impaired and the general public, transmits voice data of the general public to the relay center, and is responsible for the mutual voice data exchange function. . </p><p>Another object of the present invention is that the other user can also directly dial the phone number of the speech-capable deaf person without using the representative number of the relay center, which is the method currently used when making a call to the speech-capable deaf person. It is to provide a method of providing caption phone service to the hearing impaired without exposing their disability to the general public. </p><p>Another object of the present invention is to provide reliable incoming calls from the management side of the WCTS terminal device and to minimize power consumption due to the omission of mobility management of the terminal device. </p>

<p>In order to achieve the above objects, according to a first aspect of the present invention, a WCTS terminal device that establishes a first voice data path and a first caption data path in conjunction with a Wireless Captioned Telephone Service (WCTS) terminal device matching part; a network matching unit configured to establish a second voice data path in association with a counterpart user terminal device; a relay center matching unit for setting a third voice data path and a second caption data path in conjunction with the relay center; a handler unit for handling at least one of the first voice data path, the first caption data path, the second voice data path, a third voice data path, and the second caption data path; and controlling the WCTS terminal device matching unit, the network matching unit, the relay center matching unit, and the handler to receive voice data from the counterpart user terminal device through the second voice data path, and the third voice data transmits the voice data to the relay center through a path, receives caption data generated from the voice data from the relay center through the second caption data path, and receives the voice data through the first voice data path In addition, it is possible to provide a WCTS server system that transmits the caption data to the WCTS terminal device through the first caption data path. </p><p>The first voice data path is established using a voice communication network and a mobile communication circuit network, the first caption data path is established using an Internet Protocol data network and the mobile communication packet network, and the first voice data path is established using the mobile communication packet network. and the first caption data path is separated from each other, the second voice data path and the third voice data path are established using a voice communication network, and the second caption data path is established using the Internet protocol data network. A WCTS server system characterized in that it is set up is preferable.</p><p>The first voice data path and the first caption data path are established using an Internet protocol data network and a mobile communication packet network,</p><p>The first voice data path and the first caption data path are the same, the second voice data path and the third voice data path are established using a voice communication network, and the second caption data path is the Internet protocol A WCTS server system characterized in that it is established using a data network is preferred. </p><p>The first voice data path is established using a voice communication network and a mobile communication circuit network, the first caption data path is established using an Internet Protocol data network and the mobile communication circuit network, and the second voice data path is established using the mobile communication circuit network. and the third voice data path is established using the voice communication network, and the second caption data path is established using the Internet protocol data network. </p><p>According to a second aspect of the present invention, there is provided a WCTS terminal device combined with a WCTS server system for providing a caption phone service, comprising: a monitoring unit for monitoring a communication event in order to interwork with the WCTS server system; WCTS application unit executed under the control of the monitoring unit corresponding to the communication event; A communication module unit for receiving and transmitting voice data or receiving caption data, wherein the WCTS server system receives voice data of a counterpart user from a counterpart user terminal device through a preset second voice data path, Transmitting the voice data of the counterpart user to a relay center through a third voice data path, and receiving the caption data generated from the voice data of the counterpart user from the relay center through a preset second caption data path, It is possible to provide a WCTS terminal device characterized in that the voice data of the counterpart user is transmitted through a preset first voice data path and the caption data is transmitted to the WCTS terminal device via a preset first caption data path. </p><p>When the monitoring unit receives an incoming call event, if the caller of the corresponding voice call is the WCTS server system, the monitoring unit automatically receives the call without ringing the ring. When receiving a call, it starts the WCTS application. On the other hand, when an outgoing call event is received, the WCTS application is started. It is desirable to perform a function to terminate </p><p>According to a third aspect of the present invention, there is provided a caption phone service providing method performed by a WCTS server system, the method comprising: receiving voice data from a counterpart user terminal device through a preset second voice data path; transmitting the voice data to a relay center through a third preset voice data path; receiving caption data generated from the voice data from the relay center through a preset second caption data path; The method may include transmitting the voice data to a WCTS terminal device through a preset first voice data path and the caption data via a preset first caption data path.</p><p>According to a fourth aspect of the present invention, in a method for providing a caption phone service performed by a WCTS terminal device, a caption generated from voice data of a counterpart user corresponding to the counterpart user terminal device and voice data of the counterpart user from a WCTS server system receiving data; outputting the received voice data and the caption data of the counterpart user, wherein the WCTS server system receives the counterpart user's voice data from the counterpart user terminal device through a preset second voice data path, Transmitting the voice data of the counterpart user to a relay center through a third preset voice data path, and receiving the caption data generated from the voice data of the counterpart user from the relay center via a preset second caption data path, , To provide a caption phone service providing method, characterized in that the voice data of the other party user is transmitted through a preset first voice data path and the caption data is transmitted to the WCTS terminal device through a preset first caption data path. can</p><p>Preferably, the receiving step and the outputting step are performed by executing a WCTS application unit under the control of a monitoring unit monitoring a communication event in order to interwork with the WCTS server system. </p>

<p>According to the present invention, the following effects can be expected.</p><p>The caption phone service providing method of the present invention provides a function for the speech-capable deaf person to make a direct call to the other party using the phone book stored in the WCTS terminal device by providing the speech-capable deaf person with the same phone usage method as the general public, It provides a function to directly receive an incoming call from the other party and make a call.</p><p>In addition, the WCTS server system of the present invention has the effect of directly dialing the phone number of the speech-capable deaf person rather than using the representative phone number of the relay center when the other party also calls the speech-capable deaf person. has the advantage of not having to expose one's disability. </p><p>Additionally, in terms of the WCTS terminal device for the hearing impaired, the same incoming call success rate as that of the other user is guaranteed during an incoming call, and the battery of the terminal device is removed by eliminating the periodic packet communication used to manage the mobility of the terminal device. This has the advantage of reducing power consumption. </p>

1 is a block diagram of a WCTS terminal device according to a preferred embodiment of the present invention; 2 is a block diagram of a WCTS application unit according to a preferred embodiment of the present invention; 3 is a block diagram of a WCTS server system according to a preferred embodiment of the present invention; 4 is a flowchart of an operation of a monitoring unit of a WCTS terminal device according to a preferred embodiment of the present invention; 5 is an operation flowchart of an application program of a WCTS terminal device according to a preferred embodiment of the present invention; 6 is a channel configuration and voice/data flow diagram of a handler unit of a WCTS server system according to a preferred embodiment of the present invention. 7 is a configuration diagram for providing an outgoing service by separating transmission paths of voice data and caption data to a WCTS terminal device according to an exemplary embodiment of the present invention; 8 is a configuration diagram for providing an incoming service using a line voice service by separating transmission paths of voice data and caption data to a WCTS terminal device according to an embodiment of the present invention; 9 is a configuration diagram for providing an outgoing service using the same transmission path for voice data and caption data to a WCTS terminal device according to an embodiment of the present invention; 10 is a configuration diagram for providing an incoming service using a circuit voice service using the same transmission path for voice data and caption data to a WCTS terminal device according to an embodiment of the present invention; 11 is a configuration diagram for providing an outgoing service using the same transmission path for voice data and caption data to a WCTS terminal device using a dedicated user interface (UI) according to an exemplary embodiment of the present invention. 12 is a configuration diagram for providing an incoming service using the same transmission path for voice data and caption data to a WCTS terminal device using a dedicated user interface (UI) according to an embodiment of the present invention; 13 is a configuration diagram for providing an outgoing service using a USSD function for transmitting a circuit voice service and caption data according to a preferred embodiment of the present invention; 14 is a configuration diagram for providing an incoming service using a USSD function for transmitting a circuit voice service and caption data according to an embodiment of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a block diagram of the present WCTS terminal device. The WCTS terminal device of FIG. 1 is composed of a WCTS application unit 101 including a monitoring unit 103 in a terminal device which basically includes a dialing unit 102 , an operating system unit 104 , and a communication module unit 105 .

As shown in FIG. 1 , the dialing unit 102 is interlocked with the communication module unit 105 using the operating system unit 104 and operates when a user makes or receives a call. The communication status of the communication module unit 105 or events generated during incoming or outgoing calls generated by the dialing unit 102 are transmitted to the monitoring unit 103 through the operating system unit 104 . The monitoring unit 103 starts and ends the WCTS application unit 101 using events.

The WCTS application unit 101 is an application program that operates to receive the WCTS service, and is executed by the monitoring unit 103. After being executed, the WCTS application unit 101 uses the communication module unit 105 through the operating system unit 104 to be a WCTS server. It is connected to the system and transmits and receives voice data or caption data obtained by transcribed voice data.

2 is a block diagram of a WCTS application unit included in the WCTS terminal device of the present invention to perform a WCTS function.

As shown in FIG. 2, the WCTS application unit 101 includes a user input unit 201 that processes a user's input, a display unit that displays text input by the user or caption data received from the WCTS server system 300 ( 202), a control unit 212 for controlling the operation of the WCTS application program, and an event handler unit 204 interworking with the operating system unit 104.

The event handler unit 204 transmits, among the events received from the operating system unit 104, an event related to a voice call or control messages received from the WCTS server system 300 to the control unit 203, and the caption data is It is transmitted to the display unit 202 . The display unit 202 expresses the received caption data using a display device.

On the other hand, the user input unit 201 displays data such as text received from the user on the display unit 202 and transmits it to the WCTS server system 300 through the event handler unit 204, and also the user input The connection management control message with the WCTS server system 300 is transmitted to the control unit 203 to control the connection between the WCTS application unit 101 and the WCTS server system 300 .

3 is a block diagram of a WCTS server system configured on the network side of the present invention to provide a WCTS service.

The WCTS server system 300 includes a WCTS terminal device matching unit 302 connected to the WCTS terminal device 100 to control a call, and a network matching unit 303 connected to a counterpart user terminal device 603 to control a call. , a relay center matching unit 304 connected to the relay center to control a call, a handler unit 305 for handling a voice data path set using the respective matching units, and a service control unit 301 for controlling them. .

The WCTS terminal device matching unit 302 matches with the WCTS terminal device 100 through the first voice data path V1 and the first caption data path C1, and the network matching unit 303 is the WCTS terminal device. A page is performed for an incoming call to the device 100 and matched with the counterpart user terminal device 603 through the second voice data path V2. And the relay center matching unit 304 matches with the relay center 602 through the third voice data path V3 and the second caption data path C2.

4 is an operation flowchart of the monitoring unit of the WCTS terminal device according to the present invention. First, a process of processing the voice call from the monitoring unit 103 will be described. The monitoring unit 103 waits in the start stage (P101) and receives an event (P102). After determining the type of the received event (P103) and executing the WCTS application unit 101 in the case of an outgoing call event (P107), the WCTS terminal device 100 is set to transmit and receive voice data using the circuit network. (P108) If transmission/reception of voice data is not required, the circuit call is terminated (P109). If it is necessary to transmit/receive voice data, the monitoring unit 103 completes the processing (P112) and waits in the restarting step. In the outgoing call process, even if the circuit call is set to use, the circuit call is terminated (P111).

Next, if the event P102 received in the start state (P101) is an incoming call event (P103), if the caller number of the incoming call is the same as the number of the WCTS server system 300 (P104), the ring is automatically After receiving a call and connecting the voice data path (P110), it is determined whether to use the circuit call (P108), and the processing is terminated through the corresponding process (P112).

If the caller number of the incoming call is not the number of the WCTS server system 300, it is determined that the call is received from the other user terminal device 603, and the user of the WCTS terminal device 100 uses vibration, light, or sound. ring signal. When the user of the WCTS terminal device 100 rejects the call (P106) while the ring is ringing, the process ends (P112), and when the user receives the call (P106), the WCTS application unit 101 is executed ( P107). Thereafter, after determining whether to use the circuit call (P108), the process ends through the corresponding process (P112).

5 is an operation flowchart of the WCTS application unit executed by the monitoring unit of the WCTS terminal device according to the present invention.

When the WCTS application unit 101 is started by the monitoring unit 103 (P201), a connection is attempted using the previously stored information of the WCTS server system 300 (P202). After the connection is completed, it waits (P203) in the message reception state.

The WCTS server 300 operates differently depending on the type of message received from the system. First, if the received message is a message instructing the user to display the UI, the WCTS application unit 101 displays the UI of the user input unit 201 including the display unit 202 to display the received text and the input window on the screen ( P205), and if the received message is caption data obtained by characterizing the voice data of the other party, it is output to the display unit 202 (P206). After transmitting (P207), and if the received message is an end command of the WCTS application unit 101, the WCTS application unit 101 is terminated (P208) and the operation is completed (P209) and then waits in the message reception state (P203).

6 is a view showing the channel configuration and the flow of data including voice data and caption data, the channel handler unit constituting the handler unit of the WCTS server system of the present invention is set in a state in which a user of a WCTS terminal device and a user of the other terminal device are on a call. It is a conceptual diagram.

The handler unit 305 includes a plurality of channel handler units 600 , and one channel handler unit 600 has a first voice data path V1 capable of transmitting and receiving voice data to and from the WCTS terminal device 100 . ), the WCTS terminal device channel processing element 612 matched through It is composed of a group of channel processing elements 606 of the other terminal device matched through the second voice data path V2 capable of transmitting and receiving voice data to and from the device 603 .

First, the flow of voice data transmitted from the counterpart user terminal device 603 to the WCTS terminal device 100 will be described. When the other party user terminal device 603 transmits voice data, the other party terminal device inside the channel handler unit 600 included in the WCTS server system 300 through the second voice data path V2 preset according to the call control procedure. A channel processing element 606 receives.

The counterpart terminal device channel processing element 606 transmits the received voice data to the relay center channel processing element 605 and simultaneously to the WCTS terminal apparatus channel processing element 612 (614). The relay center channel processing element 605 transmits the received voice data to the relay center 602 through the third voice data path V3 preset by the call control procedure. The relay center 602 converts the received voice data into text data into caption data, and converts the caption data to a WCTS terminal device ( 100) is sent. The path for transmitting the caption data may be directly established with the WCTS terminal device 100 (619), or may be set indirectly with the WCTS terminal device 100 via the WCTS server system 300 (C1, C2). ).

On the other hand, the WCTS terminal device channel processing element 612 receiving the voice data from the other terminal device channel processing element 606 transmits the corresponding voice data to the WCTS through the first voice data path V1 preset according to the call control procedure. It is transmitted to the terminal device 100 .

Next, a flow of voice data transmitted from the WCTS terminal device 100 to the counterpart user terminal device 603 will be described. When voice data is transmitted using the WCTS terminal device 100, the WCTS of the channel handler unit 600 included in the WCTS server system 300 through the first voice data path V1 preset using a call control procedure. The terminal equipment channel processing element 612 receives the WCTS terminal equipment channel processing element 612 forwards the received voice data to the counterpart terminal equipment channel processing element 606, and the counterpart terminal equipment channel processing element 606 ) transmits the voice data to the other party user terminal device 603 through the second voice data path V2 preset according to the call control procedure.

7 is a diagram illustrating a configuration for providing an outgoing call service by separating transmission paths of voice data and caption data between the WCTS server system and the WCTS terminal device according to the present invention.

When the user dials using the WCTS terminal device 100, the WCTS application unit 101 sends its own phone number to the WCTS server system 300 according to the procedures of FIGS. 4 and 5 and the call of the counterpart terminal device 603. Starting with the transmission of the message containing the number, the initial connection request procedure is performed through the mobile communication packet network 702 and the Internet protocol data network 704 (hereinafter, referred to as 'IP network') (a11), and moves between each other A caption data path C1 is established using the communication packet network 702 and the IP network.

When the setting of the caption data path C1 is completed, the WCTS server system 300 provides a voice communication network 703, where 'voice communication network' is a concept that includes a VoIP network using data) and a mobile communication circuit network ( 701), an attempt is made to send a call to the phone number of the WCTS terminal device 100 to attempt to establish a voice data path (a12). After confirming that the call is coming from the WCTS server system 300, the WCTS terminal device 100 operates so that the voice data path V1 is set, and when the voice data path V1 setting is completed, the WCTS server system 300 ) attempts to establish a voice data path to the relay center 602 using the voice communication network 703 (a13). At the same time as setting the voice data path V3 between the relay center 602 and the WCTS server system 300, the caption data path C2 is also set through the IP network. From this point on, all situations occurring when the other user terminal device 603 and the voice data path V2 are set are transcribed and transmitted to the WCTS terminal device 100 by the WCTS server system 300 .

When the setting of the voice data path V3 is completed, the WCTS server system 300 starts setting the voice data path through the other user terminal device 603 and the voice communication network 703 (a14). When the user of the other terminal device 603 receives a call (a15), the voice data path V2 is established and the procedure for providing the WCTS service is completed, and the user of the WCTS terminal device 100 receives the call from the WCTS server. The system 300 receives the voice data of the other party and the caption data in which the voice data is transcribed together, and the user of the other terminal device makes a call while receiving the voice data of the user of the WCTS terminal device, that is, the speech-capable deaf user. .

8 is a block diagram showing a configuration diagram for providing an incoming call service using a line voice service by separating the transmission paths of voice data and caption data between the WCTS server system and the WCTS terminal device according to the present invention.

When the user of the other terminal device 603 directly dials the phone number of the WCTS terminal device 100, the voice communication network 703 performs number translation and routing functions to transmit the corresponding call connection request message to the WCTS server system 300. transmit (b11). The WCTS server system 300 attempts a call connection request to the WCTS terminal device 100 through the voice communication network 703 and the mobile communication circuit network 701 (b12). When the WCTS terminal device 100 responds to a voice call, a voice data path V1 is created, and the WCTS server system 300 creates a voice data path V2 and indicates that the call has started. 603) (b13). When the voice data path V1 is set in response to the WCTS terminal device 100, the WCTS terminal device 100 includes its own phone number and the phone number of the counterpart terminal device 603 to the WCTS server 300. The connection request procedure is performed starting with the transmission of the received message (b14), and a caption data path (C1) is established using the mutual mobile communication packet network 702 and the IP network 704. When the setting is completed, the WCTS The server system 300 attempts to establish a voice data path to the relay center 602 via the voice communication network 703 (b15).

At the same time as setting the voice data path V3 between the relay center 602 and the WCTS server system 300 , the caption data path C2 is also created through the IP network 704 . When the caption data path C2 is created, the procedure for providing the WCTS service is completed, and the WCTS terminal device 100 receives the counterpart's voice data and caption data.

9 is a block diagram illustrating an outgoing call service for transferring voice data and caption data using the same transmission path between the WCTS server system and the WCTS terminal device according to the present invention.

When the user dials using the WCTS terminal device 100, the WCTS application unit 101 sends its own phone number to the WCTS server system 300 according to the procedures of FIGS. 4 and 5 and the call of the counterpart terminal device 603. Starting with the transmission of a message containing a number, an initial connection request procedure is performed using the mobile communication packet network 702 and the IP network 704 (c11), and the mobile communication packet network 702 and the IP network ( 704) to establish a data path C1 and a voice data path V1.

When the setting of the caption data path C1 and the voice data path V1 is completed, the WCTS server system 300 attempts to set the voice data path to the relay center 602 using the voice communication network 703 ( c12). When the voice data path V3 between the relay center 602 and the WCTS server 300 is set, a caption data path C2 is also created using the IP network 704 at the same time. From this point on, all situations occurring when the public phone 603 and the voice data path V2 are created are transcribed and transmitted to the WCTS terminal device 100 by the WCTS server 300 .

When the setting of the voice data path V3 is completed, the WCTS server system 300 starts setting the voice data path through the counterpart terminal device 603 and the voice communication network 703 (c13). When the user of the other terminal device 603 receives a call (c14), the voice data path V2 is established, and the procedure for providing the WCTS service is completed.

10 is a block diagram of a method for transmitting voice data and caption data using the same transmission path between the WCTS server system and the WCTS terminal device of the present invention for providing an incoming call service using a line voice service.

When the user of the other terminal device 603 directly dials the phone number of the WCTS terminal device 100, the voice communication network 703 performs number translation and routing functions to transmit the corresponding call connection request message to the WCTS server system 300. transmit (d11). The WCTS server system 300 attempts a call connection request to the WCTS terminal device 100 using the mobile communication circuit network 701 (d12). The WCTS terminal device 100 immediately terminates the voice call after responding to the voice call (d13). If the WCTS terminal device 100 rejects the incoming call or does not answer the call, all routes are canceled and terminated, but when the user receives the call, the WCTS terminal device 100 sends its own phone number to the WCTS server system 300 . Starting with the transmission of a message including the phone number of the terminal device 603 and the counterpart terminal device 603, the connection request procedure is performed (d14), and the caption data path ( C1) and the voice data path (V1) are established.

When the setting of the caption data path C1 and the voice data path V1 is completed, the WCTS server system 300 attempts to set the voice data path to the relay center 602 using the voice communication network 703 (d15). ), a voice data path V2 is created using the other party's terminal device 603 and the voice communication network 703, and the other party is notified that the call has started (d16). In the process of establishing the voice data path V3 between the relay center 602 and the WCTS server system 300 using the voice communication network 703, the caption data path C2 using the IP network 704 is used. ) is also created. When the caption data path C2 is created, the procedure for providing the WCTS service is completed, and the WCTS terminal device 100 receives voice data and caption data of the counterpart terminal device 603 by the WCTS server system 300 . will receive

11 is a diagram showing the configuration of the WCTS server system of the present invention providing an outgoing call service for transmitting voice data and caption data using the same transmission path to a WCTS terminal device using a dedicated user interface (UI).

When the user dials using the dedicated user interface of the WCTS terminal device 100 , the transmission of a message including his or her phone number and the phone number of the counterpart terminal device 603 to the WCTS server system 300 starts at the start. An initial connection request procedure is performed using the communication packet network 702 and the IP network 704 (e11), and a caption data path (C1) between the mobile communication packet network 702 and the IP network 704 is used. and a voice data path V1. When the setting of the caption data path C1 and the voice data path V1 is completed, the WCTS server system 300 attempts to set the voice data path to the relay center 602 using the voice communication network 703 ( e12). In the process of establishing a voice data path V3 between the relay center 602 and the WCTS server system 300 using a voice communication network 703, a caption data path C2 using an IP network 704 is used. also set From this point on, all situations occurring when setting up the voice data path V2 with the counterpart terminal device 603 are transcribed and transmitted to the WCTS terminal device 100 by the WCTS server system 300 . When the setting of the voice data path V3 is completed, the WCTS server system 300 starts setting the voice data path using the counterpart terminal device 603 and the voice communication network 703 (e13). When the other terminal device 603 receives a call (e14), the voice data path V2 using the voice communication network 703 is established, and the procedure for providing the WCTS service is completed.

12 is a diagram showing the configuration of the WCTS server system of the present invention providing an incoming call service for transmitting voice data and caption data to a WCTS terminal device using a dedicated user interface (UI) using the same transmission path.

When the user of the other terminal device 603 directly dials the phone number of the WCTS terminal device 100, the voice communication network 703 performs number translation and routing functions to transmit the corresponding call connection request message to the WCTS server system 300. forward (f11). The WCTS server system 300 attempts a call connection request to the WCTS terminal device 100 included in the received call connection request message using the IP network 704 and the mobile communication packet network 702 (f12). . The WCTS terminal device 100 responds to a voice call. If the incoming call is rejected or the call is not answered, all routes are canceled and terminated, but when the call is received, the mutual caption data path (C1) and the voice data path (V1) are established. When the setting of the caption data path (C1) and the voice data path (V1) is completed using the IP network 704 and the mobile communication packet network 702, the WCTS server system 300 connects to the voice communication network 703. An attempt is made to set the voice data path to the relay center 602 via (f13). At the same time, the WCTS server system 300 creates a voice data path V2 using the other party terminal device and the voice communication network 703 and notifies the other party terminal device 603 that a call has started (f14). A voice data path (V3) is established between the relay center (602) and the WCTS server system (300) using the voice communication network (703), and at the same time, a caption data path (C2) is established using the IP network (704) ) is also set. When the caption data path C2 is generated, a procedure for providing the WCTS service is completed.

13 is a diagram showing a configuration of providing an outgoing call service between the WCTS server system and the WCTS terminal device of the present invention for voice data using a circuit line service and for transmitting caption data using USSD.

When the user dials using the WCTS terminal device 100, information including his/her own phone number and the phone number of the counterpart terminal device 603 is transferred to the WCTS server system 300 according to the procedures of FIGS. 4 and 5. It is transmitted using the USSD (Unstructured Supplementary Service Data) function of the communication circuit network 701 (g11). The WCTS server system 300 attempts to establish a voice data path with the WCTS terminal device 100 using the voice communication network 703 and the mobile communication circuit network 701 (g12). The WCTS terminal device 100 operates so that the voice data path V1 is automatically set after confirming that the call is coming from the WCTS server system 300 . When the voice data path setting (g12) with the WCTS terminal device 100 is completed, the WCTS server system 300 attempts to set the voice data path to the relay center 602 using the voice communication network 703 (g13). )do. A voice data path V3 using the voice communication network 703 between the relay center 602 and the WCTS server 300 is set, and a caption data path C2 using an IP network is also set. The WCTS server system 300 starts to transmit text to the user using the USSD function provided by the mobile communication circuit network. From this point on, all situations occurring when setting up the voice data path V2 with the counterpart terminal device 603 are transcribed and transmitted to the WCTS terminal device 100 by the WCTS server system 300 . When the setting of the voice data path V3 using the voice communication network 703 is completed, the WCTS server system 300 sets the voice data path using the other terminal device 603 and the voice communication network 703. Start (g14). When the other party receives the call (g15), the voice data path V2 is established, and the procedure for providing the WCTS service is completed.

14 is a diagram showing a configuration of providing an incoming call service between the WCTS server system and the WCTS terminal according to the present invention for voice data using a circuit service and for transmitting caption data using USSD.

When the user of the counterpart terminal device 603 directly dials the phone number of the WCTS terminal device 100, the corresponding call connection request message is transmitted to the WCTS server 300 using the voice communication network 703 (h11). The WCTS server system 300 attempts a call connection request using the WCTS terminal device 100, the voice communication network 703, and the mobile communication circuit network 701 included in the received call connection request message ( h12).

When the WCTS terminal device 100 responds to the voice call, a voice data path V1 is created, and the WCTS server system 300 creates a voice data path V2 with the other party terminal device to indicate that the call has started. Notifies the counterpart terminal device 603 (h13). The WCTS server system 300 attempts to establish a voice path to the relay center 602 using the voice communication network 703 (h14). Between the relay center 602 and the WCTS server system 300, the voice data path V3 using the voice communication network 703 is set, and the caption data path C2 using the IP network 704 is also set. . When the caption data path C2 is generated, a procedure for providing the WCTS service is completed. The WCTS user uses the mobile communication circuit network and the voice communication network for the other party's voice data by the WCTS terminal device 100 and the WCTS server 300, and the caption data uses the USSD function and IP network provided by the mobile communication circuit network. will be received using

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to illustrate, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: WCTS terminal device 101: WCTS application unit 103: monitoring unit 300: WCTS server system 302: WCTS terminal device matching unit 303: network matching unit 304: relay center matching unit 305: handler unit 602: relay center 603: counterpart terminal device 701: mobile communication circuit network 702: mobile communication packet network 703: voice communication network 704: IP network V1: first voice data path V2: second voice data path V3: third voice data path C1: first caption data path C2: second caption data path