KR100607703B1 - Telephone with p2p for a basis - Google Patents

Abstract

The present invention relates to an Internet telephony connection system, and to a dual-mode incoming and outgoing telephone terminal in an Internet telephony connection system based on P2P. Such an incoming and outgoing telephone terminal includes a VoIP call processor for processing call connection and call data transmission to make an internet phone call with a counterpart terminal, an internet network access unit providing an interface between the VoIP call processor and the internet network, and a counterpart terminal and a general telephone. PSTN call processing unit that handles incoming / outgoing calls to form a call and forms a call channel according to the processing result, and a PSTN network connection unit that provides an interface between the PSTN call processing unit and the PSTN network. A memory for mapping and storing internet telephone connection information; An Internet telephony connection information transmitting / receiving unit which receives the Internet telephony connection information of a caller terminal through the PSTN network and stores the PSTN telephone number of the terminal together in the memory; An internet telephony information search request unit for searching the memory for internet telephony information mapped to a PSTN phone number input through a keypad or for requesting a search for an external terminal; Internet telephony connection request unit for requesting Internet telephony connection with the retrieved Internet telephony information further comprises.

VoIP, P2P, combined.

Description

Dual mode incoming / outgoing phone handset {TELEPHONE WITH P2P FOR A BASIS}

1 is a configuration diagram of an Internet telephone connection system to which a dual mode incoming / outgoing telephone terminal according to an embodiment of the present invention is connected.

Figure 2 is a block diagram of a dual-mode incoming and outgoing telephone terminal 100 according to an embodiment of the present invention in FIG.

3 is a functional block diagram of the control unit 130 shown in FIG. 2;

4 is a flowchart illustrating a call control of a dual-mode incoming / outgoing telephone terminal according to an embodiment of the present invention.

5 is a flowchart illustrating a call control of a dual-mode incoming / outgoing telephone terminal according to another embodiment of the present invention.

Figure 6 is a block diagram of a dual-mode incoming and outgoing mobile phone terminal according to another embodiment of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internet telephony connection system, and more particularly, to a dual mode incoming / outgoing telephone terminal in an internet telephony connection system based on P2P.

With the development of the Internet, not only data transmission but also voice calls can be made in real time. Unlike regular phone calls, which can be expensive over distance and time, Internet calls are expected to increase explosively because they can talk to people abroad at very low cost.

A typical internet phone is to install an internet phone program on a personal computer and to make a call using a microphone and a speaker or a headset connected to the computer. Such Internet phones are generally unable to talk to ordinary telephone users connected to a public switched telephone network (PSTN). In order to solve this problem, a service that makes a phone call from the Internet phone has appeared by installing a gateway that serves as an interface between the Internet and the PSTN.

However, even in such a service, ordinary telephone users cannot call Internet phones. In order to solve this problem, Korean Patent Laid-Open Publication No. 2000-0072754 assigns a series of numbers corresponding to a telephone number to an Internet phone subscriber. However, such a conventional system has a disadvantage in that it is inconvenient to use because a general telephone user has to go through an automatic answering system to call an Internet phone user.

Another technology to solve this problem is the PSTN / Internet intercom. These dual phones manage PSTN phone numbers and VoIP phone number systems separately, so they can only call each other. This has the disadvantage that the two phone numbers must be used in parallel, as well as the manual propagation of two different phone numbers to a third party.

Therefore, it is expected to facilitate the convenience of telephone terminal users if they can obtain the Internet telephony information of the other party only by PSTN call between the parties without manual propagation effort of the Internet telephony information.

On the other hand, a general Internet telephony connection system is a concept including an internet telephony service provider, and service users receive an internet telephony connection information of a counterpart terminal from an internet telephony service provider server to perform a call. As such, the general Internet telephony connection system has a service provider server that provides Internet telephony information as an essential component.

Therefore, there is an urgent need to develop a P2P-based phone terminal capable of making an Internet phone call without a separate Internet phone service provider.

Accordingly, an object of the present invention was devised to satisfy the above-mentioned needs, and a dual-mode incoming / outgoing call capable of acquiring the Internet call connection information of the other party using only the PSTN call between the parties without manual propagation effort of the Internet call connection information. In providing a terminal.

Furthermore, an object of the present invention is to provide a P2P-based wired / wireless dual mode incoming / outgoing telephone terminal capable of acquiring Internet telephone connection information of a counterpart terminal without an internet telephone service provider server.

In order to achieve the above object, a dual-mode incoming / outgoing call terminal according to an embodiment of the present invention includes a VoIP call processor configured to process a call connection and call data transmission to make an internet phone call with a counterpart terminal, the VoIP call processor and the Internet network. An Internet network connection unit providing an interface between the PSTN call processing unit and a PSTN call processing unit for processing incoming / outgoing calls to form a general telephone call with the other terminal and forming a call channel according to the processing result, and the PSTN call processing unit and the PSTN network PSTN network connection that provides an interface between

A memory for mapping and storing the PSTN telephone number and Internet telephone connection information;

An Internet telephony connection information transmitting / receiving unit which receives the Internet telephony connection information of a caller terminal through the PSTN network and stores the PSTN telephone number of the terminal together in the memory;

An internet telephony information search request unit for searching the memory for internet telephony information mapped to a PSTN phone number input through a keypad or for requesting a search for an external terminal;

Internet telephony connection request unit for requesting Internet telephony connection with the retrieved Internet telephony information further comprises.

Furthermore, the present invention further includes a PSTN telephone connection request unit for requesting PSTN telephone connection to the input PSTN telephone number if there is no searched Internet telephone connection information.

The dual-mode incoming / outgoing telephone terminal according to another embodiment of the present invention basically includes a mobile telephone communication module for performing data communication with a mobile communication network base station, and a wireless communication module for performing short range wireless data communication with a wireless network access point. ,

A memory for mapping and storing a receiving telephone number and Internet telephone connection information;

An Internet telephony connection information transmitting / receiving unit configured to receive Internet telephony connection information of a caller terminal through the mobile telephone communication network and to store it in the memory together with the phone number of the terminal;

An Internet telephony information retrieval request unit for retrieving Internet telephony connection information mapped to a telephone number of a receiving party input through a keypad from the memory or requesting a retrieval to an external terminal through the wireless network access point;

And an internet telephony request unit for requesting an internet telephony connection with the retrieved internet telephony connection information through the wireless communication module.

And a mobile communication network telephone connection request unit for requesting a telephone connection to the mobile telephone communication network if there is no retrieved Internet telephone connection information.

In this embodiment of the present invention, the wireless communication module may be implemented as a wireless LAN module and a Bluetooth module.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

First, FIG. 1 is a diagram illustrating a configuration of an Internet telephony connection system to which a dual mode incoming / outgoing telephone terminal is connected according to an embodiment of the present invention. The dual-mode incoming / outgoing telephone terminals 100 and 200 of the calling party and the called party are public. It is connected to the telephone network (PSTN) and the Internet. For reference, in the exemplary embodiment of the present invention, the dual mode incoming / outgoing telephone terminal refers to a telephone terminal capable of performing two telephone call modes. Examples of such a terminal include a wired terminal capable of selecting an internet telephony mode and a PSTN telephony mode, and a wireless mobile communication terminal capable of selecting a mobile telephony mode and an internet telephony mode through short-range data communication.

Each dual-mode incoming / outgoing telephone terminal (100,200) shown in FIG. 1 performs data communication with a counterpart terminal through a PSTN network to obtain Internet telephony connection information of the counterpart terminal, and uses the obtained Internet telephony connection telephone information of the counterpart terminal. By storing the mapping with the number, the Internet telephone is performed using the Internet telephone connection information mapped to the telephone number which is input later.

The configuration of the dual-mode incoming / outgoing telephone terminal 100 and 200 will be described in more detail with reference to FIG. 2.

First, FIG. 2 is a block diagram illustrating a dual mode incoming / outgoing telephone terminal 100 according to an embodiment of the present invention in FIG. 1, and FIG. 3 is a functional block diagram of the controller 130 shown in FIG. 2.

Referring to FIG. 2, the keypad 110 is a key input device including 4 * 3 key buttons and a plurality of function keys for inputting a PSTN telephone number, and the DTMF processing unit 115 controls the keypad 110. Decodes the outgoing signal dialed through the transmission to the control unit 130 to be described later.

The display unit 120 displays various character data and numeric data by the controller 130, and the memory 125 is controlled by the controller 130, which will be described later, at least a plurality of PSTN telephone numbers and the Internet mapped thereto. A database in which telephone connection information is stored, and includes a region in which control program data used to control overall operation of a terminal is stored. For reference, the Internet telephony connection information (including the VoIP ID) stored in the memory 125 may be provided from a counterpart terminal on which a PSTN call is made, and periodically performs data communication with the other terminal to establish an internet telephony connection to other terminals. The information may be updated to update the contents of the memory 125.

Meanwhile, the VoIP call processor 135 performs call connection and call data transmission processing so that an internet phone call with a call counterpart terminal is normally performed. The VoIP call processing unit 135 may be implemented by mounting the H.323 protocol stack as already known. After the call connection is made between the calling party and the called party terminal by the H.323 protocol stack, the voice data packet is transmitted, and the transmitted voice data is finally converted into a voice signal and output through the handset 140.

The internet network access unit 152 serves to provide an interface for data transmission and reception normally between the VoIP call processing unit 135 and the internet network.

The PSTN call processor 145 also handles incoming / outgoing calls so that a general telephone call is normally made with the other party's terminal and forms a call channel according to the processing result. The PSTN call processor 145 is also already known, and a ring signal detector for detecting an incoming signal (that is, a ring signal) from the PSTN network, a DTMF signal generator for generating a DTMF signal, a ringer, a CID detector, and a handset 140 ) And a switching unit that connects the PSTN network or the controller 130 to the PSTN network.

The PSTN network connection unit 154 serves to provide an interface to normally transmit and receive data between the PSTN call processing unit 145 and the PSTN network. The PSTN network connection unit 154 includes a modem to enable data communication with an external device described later.

For reference, the Internet network connection unit 152 and the PSTN network connection unit 154 may be selectively connected to the Internet network and the PSTN network by a relay controlled by the control unit 130 and implemented as one network connection unit 155. have.

The hook detector 150 detects a hook-off state when the handset 140 is lifted or a hook-on state when the handset 140 is placed and outputs the detected hook-on state to the controller 130.

The controller 130 controls the overall operation of the dual mode incoming / outgoing phone 100 based on the control program data stored in the memory 125. For example, the controller 130 performs data communication with the counterpart phone terminal 200 through the PSTN call processor 145 to transmit and receive Internet telephony connection information. That is, the Internet phone connection information of the other party's telephone terminal 200 is received and stored in the memory 125 together with the PSTN phone number of the phone detected or transmitted together, and its Internet phone connection stored in the memory 125. It transmits the information or its own phone number to the counterpart terminal 200.

The detailed configuration of the control unit 130 is shown in FIG.

Referring to FIG. 3, the Internet phone connection information search request unit 133 searches the memory 125 for Internet phone connection information mapped to a PSTN phone number input through the keypad 110. If there is no Internet telephone connection information as a result of the search, the Internet telephone connection information retrieval request unit 133 transmits the PSTN telephone number to the telephone terminal on the Internet having the Internet telephone connection information already registered in the memory 125 and maps it. Requests retrieval of connected Internet telephony information. By such a search request, the telephone terminal 100 according to an embodiment of the present invention can receive the Internet telephone connection information which is not registered in its memory 125 from another terminal 200, and accordingly, the PSTN telephone number Internet phone call can be made normally just by inputting.

On the other hand, the Internet phone connection request unit 131 requests the Internet phone connection through the VoIP call processor using the Internet connection information retrieved from the memory 125 or the external terminal which is a database. The Internet telephone connection request unit 131 may request a PSTN telephone connection to the PSTN telephone connection request unit 135, which will be described later, when there is no response according to the Internet telephone connection request for a predetermined time. PSTN telephony may be requested upon receipt of a response.

The Internet telephony information transmitting / receiving unit 137 transmits its Internet telephony connection information to the called terminal 200 connected in response to the PSTN telephony request, and the Internet telephone of the called terminal from the called terminal 200. The connection information is received and stored in the memory 125 together with the PSTN telephone number detected or transmitted by the CID detector. The Internet telephony information transmitting and receiving unit 137 may periodically transmit information stored in the memory 125 which is a database to another terminal on the Internet.

The PSTN telephone connection request unit 135 requests PSTN telephone connection to the input PSTN telephone number if there is no Internet telephone connection information mapped to the input telephone number or Internet telephone connection information transmitted from another terminal in response to a search request.

Although not shown, the dual-mode incoming / outgoing telephone terminal according to the embodiment of the present invention may further include a quality evaluation unit for evaluating the quality of service (QoS) of the Internet network. The quality evaluation unit may evaluate the quality of the Internet network using a network quality evaluation program such as Simple Network Management Protocol (SNMP). The reason for having the quality evaluator is that even if the Internet telephone call is possible, if the call quality cannot be guaranteed above the standard value, the telephone call through the public network (PSTN) is more preferable.

Therefore, when the quality of service (QoS) of the Internet network is less than the standard value, the Internet telephony requesting unit 131 may request the PSTN telephony connection to the PSTN telephony requesting unit 135.

Hereinafter, the operation of the dual mode incoming / outgoing telephone terminal having the above-described configuration will be described in detail with reference to FIGS. 4 and 5.

4 is a flowchart illustrating an outgoing control of a dual-mode incoming / outgoing telephone terminal according to an exemplary embodiment of the present invention. It will be described in detail the process of. 5 is a flowchart illustrating an outgoing control flow of a dual-mode incoming / outgoing telephone terminal according to another embodiment of the present invention. More specifically, a P2P-based incoming / outgoing terminal according to an embodiment of the present invention obtains Internet telephony connection information. A control flowchart illustrating a process of performing an internet call is shown.

First, referring to FIG. 4, first, a terminal user registers a PSTN telephone number and issued Internet telephony connection information (VoIP ID) in a memory 125 of a dual-mode incoming / outgoing telephone terminal 100 according to an embodiment of the present invention. Do it.

As described above, the caller dials the PSTN telephone number of the called party, that is, the called terminal 200, while the PSTN telephone number is registered in the memory of the incoming / outgoing telephone terminal 100. In this case, the dialed PSTN telephone number is input to the controller 130 after key data processing by the DTMF processing unit 115. The Internet telephone connection information retrieval request unit 133 of the controller 130 detects the telephone connection request by hookoff detection and dialing of the PSTN telephone number (step 200), and proceeds to step 210 and is mapped to the dialed PSTN telephone number. It is checked whether the Internet telephone connection information exists in the memory 125.

If there is internet telephony information mapped to the PSTN telephone number input into the memory 125, the internet telephony requesting unit 131 has a phone terminal 200 having the corresponding internet telephony information through the VoIP call processor 135. Call) (step 230). When a message is received in response to the Internet call connection request, a normal call is made after the call connection is made between the calling terminal 100 and the called terminal 200 according to the H.323 protocol (270). Step).

Therefore, the caller can make an internet phone call with the called party only by inputting the PSTN phone number.

The above is based on the premise that the Internet telephone connection information of the called terminal 200 is stored in the dual mode incoming / outgoing telephone terminal 100.

If none of the Internet phone connection information of the called party's telephone terminal 200 is present in the memory 125 which is the database (step 220), the PSTN call connection request unit 135 of the Internet phone connection information retrieval request unit 133 In step 240, the public network switch requests a PSTN telephone connection to the called dual-mode telephone having the PSTN telephone number input according to the request. When connected to the called party's telephone terminal 200 through a public network switch, the Internet telephone connection information transmitting and receiving unit 137 performs data communication with the control unit of the called party's telephone terminal 200 to establish an Internet telephone connection of the calling party's telephone terminal 100. The information is transmitted (step 250). In this case, the Internet phone connection information of the calling party terminal 100 may be registered in the memory of the called party terminal 200 and used later. Meanwhile, the Internet telephony connection information transmitting / receiving unit 137 receives the Internet telephony connection information of the called terminal 200 from the called terminal 200 performing data communication and stores it in the memory 125 (step 260). .
That is, the controller 130 of each of the dual-mode incoming / outgoing telephone terminals 100 and 200 can perform data communication through a modem and a public telephone network in the PSTN network connection unit 154, thereby receiving the other party's Internet connection information. For example, when the Internet telephone connection information transmission / reception unit 137 in the control unit 130 of the calling telephone generates and transmits the Internet telephone connection information transmission request message to the called party through a public telephone network, the called party responds in response thereto. Internet telephony information transmission and reception unit in the control unit 130 of the access to the Internet telephony connection information stored in the DB and transmits to the calling party through the public telephone network, between the two to obtain the result of transmitting the Internet telephone connection information through the public telephone network Will be.

As such, when data transmission with the called party's telephone terminal 200 is completed and the required transmission of the Internet phone connection information is completed, the Internet phone connection information transceiver 137 transmits a message indicating completion of data communication. The called party's telephone terminal 200 generates a ring tone after the reception of such a message is completed so that the called party can answer the PSTN telephone call.

As described above, the dual-mode incoming / outgoing telephone terminal 100 according to the embodiment of the present invention performs data communication through the PSTN telephone network if the called-side Internet telephone connection information does not exist in the memory 125. Acquire Internet telephony information stored in After that, when the telephone connection request is received to the PSTN telephone number, the Internet telephone call is made between the calling party and the called party by using the obtained Internet telephone connection information, so that the caller can perform the telephone call with only low cost. .

Although not shown in FIG. 4, if the quality of service (QoS) of the Internet network is less than the standard value, the Internet telephony request unit 131 may request a PSTN telephony connection to the PSTN telephony request unit 135. PSTN telephony may be requested even when there is no response for a predetermined time.

Hereinafter, a process for receiving Internet telephone connection information of the third telephone terminal from the second telephone terminal 200 and performing an internet telephone call with the third telephone terminal will be described with reference to FIG. 5.

First, steps 300 to 320 illustrated in FIG. 5 are the same as steps 200 to 230 described with reference to FIG. 4. That is, when the Internet telephone connection information mapped to the PSTN telephone number input through the keypad is retrieved from the memory 125, it shows that the Internet telephone connection request is made using the Internet telephone connection information.

Meanwhile, steps 330 to 370 illustrated in FIG. 5 are the same as steps 240 to 270 described in FIG. 4. That is, if there is no Internet telephony connection information registered in the memory 125, data communication is performed by calling the called party's terminal with the entered PSTN telephone number, thereby primarily obtaining the Internet telephone connection information of the called party's terminal 200. To store in the memory 125.

If even one of the Internet phone connection information is registered in the memory 125 (step 330), the Internet phone connection information retrieval request unit 133 is connected to the Internet phone connection information mapped to the PSTN phone number input through the keypad 110. Even if is not retrieved from its own memory 125, it is possible to request the retrieval of the Internet telephony connection information from another third party's telephone terminal capable of internet connection (step 380). The search request information of the Internet phone connection information should include the PSTN phone number to be searched.

If a search response is transmitted from the third called party's telephone terminal in response to the request, the Internet telephone connection information retrieval request unit 133 receives and stores it (step 390). If there is the reception of the Internet telephone connection information (VoIP connection information), the Internet telephone connection request unit 131 of the calling party terminal 100 proceeds to step 320 according to the request of the Internet telephone connection information retrieval request unit 133. Request an internet phone connection.

However, if there is no Internet telephony information mapped to the PSTN phone number inputted by the caller in the third called party's phone terminal, the Internet telephony information retrieval request unit 133 proceeds to step 340 to the PSTN telephony request unit 135. PSTN Call Request.

In addition, the Internet telephone connection information of the called terminal 200, which is called PSTN by performing steps 350 to 360, is registered in the memory 125.

According to the embodiment of the present invention described above, the first search whether the Internet connection information mapped to the PSTN phone number inputted by the caller exists in its own DB, and according to the search result, the second search request is made to another telephone terminal, The phone terminal may also request a third search of the Internet phone connection information from the third phone terminal according to its DB search result. In this way, since the Internet phone connection information mapped to the PSTN phone number can be retrieved, as a result, other people can share their DB online as in the P2P method, so that the present invention can be performed without a separate Internet phone service provider server. It is possible to build a P2P-based Internet telephone connection system using only the telephone terminal according to the embodiment.

6 is a block diagram of a dual-mode incoming / outgoing mobile phone terminal according to another embodiment of the present invention. More specifically, the control unit 130 required for the mobile communication terminal to make an Internet call through a wireless communication module is shown. It shows the configuration.

In FIG. 6, since the configuration of a general mobile communication terminal, such as a wireless transceiver, a keypad, a display unit, and a voice signal processor including an RF unit and a base bend processor, may unnecessarily obscure the gist of the present invention, a detailed description thereof will be made. It will be omitted.

Referring to FIG. 6, a dual-mode incoming / outgoing mobile terminal according to an embodiment of the present invention includes a mobile telephone communication module (wireless transmitter / receiver), a wireless network access point, and a near field wireless data communication for performing data communication with a mobile telephone network base station. Basically includes a wireless communication module (WLAN card or Bluetooth module) to perform. As shown in FIG. 2, the apparatus further includes a memory 125 for mapping and storing the receiving telephone number and the Internet telephone connection information.

The control unit 130 determines whether the Internet telephone connection is possible first through the wireless communication module, and if not possible, controls the system to make a call through the mobile communication network. The control unit 130 searches for Internet telephony connection information, which is mapped to a receiving telephone number input through a keypad, from the memory 125 or requests an external terminal to search for an external terminal through the wireless network access point. The unit 510 is included.

In addition, the control unit 130 includes an Internet phone connection request unit 500 for making an Internet phone connection request with the Internet phone connection information searched by the Internet phone connection information search request unit 510. It is transmitted to an external terminal connected to the internet network through a wireless communication module and a wireless network access point.

In addition, the control unit 130 further includes a mobile communication network call connection request unit 520, wherein the mobile communication network phone connection request unit 520 is connected to the Internet phone connection information search request unit 510 If not, it plays a role of requesting a telephone connection to the mobile communication network.

Finally, the control unit 130 includes an Internet telephony connection information transceiver 530. The transceiver 530 transmits its Internet telephony connection information to a called terminal or a calling terminal connected in response to a mobile telephone connection request. It transmits and receives the Internet phone connection information from the other terminal and serves to store in the memory 125 together with the phone number of the terminal.

Similarly to the dual-mode incoming / outgoing mobile phone terminal shown in FIG. 2, the dual-mode incoming / outgoing mobile phone terminal of the above-described configuration first checks whether an internet telephone call can be made through a local area data network, and when the internet telephone call is impossible Control the system to make a call connection through the mobile phone network. In this case, by exchanging each other's Internet phone connection information through the mobile phone communication network, if there is Internet phone connection information mapped to the inputted telephone number, it requests the Internet phone call connection through the wireless communication module. Make a call through the phone.

That is, even in another embodiment of the present invention, it is possible to construct a P2P-based Internet phone connection system using only a mobile phone terminal according to an embodiment of the present invention without a separate Internet phone service provider server.

As described above, the present invention has the convenience of making an Internet call by acquiring the Internet call connection information of the other party only by the PSTN call between the parties without manual propagation effort of the Internet call connection information, and having the counterpart terminal without the provision of an Internet telephone service provider server. Internet phone connection system has the advantage of easy to establish the Internet phone connection information can be obtained by making an Internet call.

On the other hand, the present invention has been described with reference to the embodiments shown in the drawings but this is only illustrative, it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. . Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

Claims (13)

VoIP call processing unit which processes call connection and call data transmission to make an internet phone call with the other terminal, an Internet network connection unit which provides an interface between the VoIP call processing unit and the internet network, and makes a general phone call with the other terminal. A dual mode incoming / outgoing telephone terminal comprising a PSTN call processing unit for processing incoming / outgoing calls and forming a call channel according to the processing result, and a PSTN network connection unit providing an interface between the PSTN call processing unit and the PSTN network. A memory for mapping and storing the PSTN telephone number and Internet telephone connection information; An Internet telephony connection information transmitting / receiving unit which receives the Internet telephony connection information of a caller terminal through the PSTN network and stores the PSTN telephone number of the terminal together in the memory; An internet telephony information search request unit for searching the memory for internet telephony information mapped to a PSTN phone number input through a keypad or for requesting a search for an external terminal; Includes; Internet telephone connection request unit for requesting Internet telephone connection with the retrieved Internet telephone connection information; If there is no retrieved Internet phone connection information, PSTN phone connection request unit for requesting PSTN phone connection to the input PSTN phone number; And the Internet telephony connection information transmitting / receiving unit transmits its Internet telephony connection information stored in the memory to the calling terminal when the PSTN is received. delete delete The method according to claim 1, wherein the Internet telephony information transmitting and receiving unit transmits its own Internet telephony connection information to the called terminal connected in response to the PSTN telephone connection request, and receives the Internet telephony connection information from the called terminal A dual mode incoming and outgoing telephone terminal for storing in said memory together with a PSTN telephone number. The method according to claim 1, wherein the Internet telephony information transmitting and receiving unit transmits its Internet telephony connection information and PSTN phone number to the called terminal connected in response to the PSTN telephony request, the Internet telephony information and PSTN from the called terminal A dual mode incoming and outgoing telephone terminal that receives a telephone number and stores it in the memory. The terminal of claim 5, wherein the Internet telephony connection information transmitting / receiving unit periodically updates the information stored in the memory with other terminals. The dual-mode incoming / outgoing telephone terminal according to claim 1, further comprising a quality evaluation unit for evaluating a quality of service (QoS) of the Internet network. The dual-mode incoming / outgoing telephone terminal of claim 7, wherein the Internet telephony request unit requests a PSTN telephony connection to the PSTN telephony request unit when the quality of service (QoS) of the Internet network is lower than a reference value. The dual-mode incoming / outgoing telephone terminal of claim 1, wherein the Internet telephone connection request unit requests a PSTN telephone connection from the called terminal to the PSTN telephone connection request unit when an Internet telephone connection request is not received. A dual-mode incoming / outgoing telephone terminal comprising a mobile phone communication module for performing data communication with a mobile phone communication network base station and a wireless communication module for performing short-range wireless data communication with a wireless network access point. A memory for mapping and storing a receiving telephone number and Internet telephone connection information; An Internet telephony connection information transmitting / receiving unit configured to receive Internet telephony connection information of a caller terminal through the mobile telephone communication network and to store it in the memory together with the phone number of the terminal; An Internet telephony information retrieval request unit for retrieving Internet telephony connection information mapped to a telephone number of a receiving party input through a keypad from the memory or requesting a retrieval to an external terminal through the wireless network access point; And an internet telephony request unit for requesting an internet telephony connection with the retrieved internet telephony connection information through the wireless communication module. If there is no retrieved Internet phone connection information, the mobile communication network telephone connection request unit for requesting a telephone connection to the mobile communication network; And the Internet telephony connection information transmitting / receiving unit transmits its Internet telephony connection information stored in the memory to the calling terminal when the mobile phone is called. delete delete The apparatus of claim 10, wherein the Internet telephony information transmitting / receiving unit transmits its own Internet telephony connection information to a connected called terminal in response to a mobile telephone connection request, and receives the Internet telephony connection information from the called terminal. Dual-mode incoming and outgoing telephone terminal to store in the memory with a telephone number.

Images