KR100405591B1 - Internet phone exchanger with gateway feature - Google Patents

Abstract

It is provided between a computer having an Internet phone function and a general phone, so that the Internet phone function can be implemented using a regular phone, and a call line is formed by using a general phone network when the Internet phone function cannot be implemented or selected by the user. In addition, an internet phone switching device having a gateway function for connecting a general telephone call from an external device to an internet phone program of a computer is provided. According to the apparatus of the present invention, it is possible to use an Internet phone by making a phone call from a remote place using a general telephone network, and on the contrary, it is possible to make a call to another person through a general telephone network by calling an Internet phone. In addition, since the voice information is periodically updated, the voice information can be transmitted to the user while the call line is formed.

Description

Internet phone exchanger with gateway feature

The present invention relates to an internet phone exchange apparatus having a gateway function, and more particularly, is provided between a computer having an internet phone function and a normal phone, and can implement an internet phone function using a normal phone, and implements an internet phone function. If this is not possible or by the user's choice to establish a call line using a general telephone network, and relates to an Internet phone switching device having a gateway function that connects a general telephone call from the outside to the Internet phone program of a computer.

In general, analog telephone for voice communication is the most important means of communication, and has been continuously improved and developed, and the functions have been increased in various forms. As a traditional wired telephone (PSTN), a variety of wired / wireless combined functions, automatic answering functions, and automatic call functions Functions have been added, and the development of digital information communication technology has led to the rapid increase in the use of the global information communication single network represented by the Internet, so that the distinction between voice and digital information communication has gradually disappeared. Entered the stage.

Internet phone as described above is available only in PCs with network function where the Internet is connected, and most of them are provided as a program to be executed and run on the PC, so that a call line can be formed only when the PC is normally operated. In light of this, there was a problem of limitation of place of use and trouble of operation method.

An object of the present invention is provided between a computer and a telephone having an Internet phone program to solve the above-described problems, to enable the use of the Internet phone function by using the phone, the implementation of the Internet phone function or by the user's choice It is to provide an internet phone switching device that can make calls using a general telephone network.

Another object of the present invention is to provide an Internet phone switching device that allows a user to use an Internet phone by making a phone call at a remote location using a general telephone network.

Another object of the present invention is to provide an internet phone switching apparatus that outputs predetermined voice information stored therein when a call line is formed by a user or when a user uses a telephone regardless of a call.

1 is a diagram illustrating a call system to which an Internet phone exchange apparatus according to the present invention is applied;

Figure 2 is a detailed block diagram showing the internal configuration of the Internet phone switching apparatus of the present invention and the connection state with the PC.

3 is a connection wiring diagram of the Internet phone switching apparatus according to the present invention.

4 is another connection wiring diagram of the Internet phone switching apparatus according to the present invention.

5 is a block diagram showing the internal configuration of the Internet phone switching apparatus of the present invention.

Explanation of symbols on the main parts of the drawings

20 speakers, 25 microphones,

100 pcs, 101 keyboard,

102 mouse, 200 internet phone switchboard,

300 telephone

The present invention for achieving this object is a general telephone device including a sound card interface unit for connection to the sound card of the PC, a PC interface unit for data communication with the PC, a ring generator, a power supply unit, hook state detection unit A trunk line interface unit for trunk line connection including a telephone interface unit for connection, a ring detector and a line connection switch, a DTMF detector for decoding DTMF signals from a telephone, trunk line or sound card, and DTMF generation for generating a DTMF signal And a call progress tone decoder for detecting a call progress tone, the sound card interface unit, the telephone interface unit, the trunk line interface unit, the DTMF detector, the DTMF generator, and the call progress tone decoder. The switch unit to enable the voice, the voice recording / playback unit to record and play back the voice, and the set mode are In the case of the half mode, the DTMF code from the caller is detected through the DTMF detector. If the detected DTMF code is a call setup code, the switching unit controls the call path, and the detected DTMF code is the telephone number of the receiver. Alternatively, in case of an IP address, when making a call through a CO line, the DTMF generating unit is controlled to generate a corresponding DTMF to be transmitted to the CO line. When calling through a PC, data corresponding to a DTMF code is transmitted to the PC through the PC interface unit. If the set mode is the auto answer mode, the caller first connects to the voice recording / playback unit to hear a voice message, detects the DTMF code from the caller through the DTMF detector, and detects the DTMF code. In case of telephone number or IP address, when calling via CO line, control DTMF generator By phone, and if so transferred to the trunk line, through the PC, and a control unit for transmitting data corresponding to the DTMF code to the PC via the PC interface unit.

Hereinafter, with reference to the accompanying drawings will be described in detail a telephone system having an Internet phone switching apparatus of the present invention.

1 is a diagram illustrating a call system to which an Internet phone exchange apparatus according to the present invention is applied.

The PC 100 has an existing Internet phone program and a management program for monitoring and managing an execution state of the Internet phone program. The PC 100 executes the Internet phone program in response to a driving signal for executing the Internet phone program inputted from the Internet phone switching device 200, and uses the call number of the called party input from the user through the management program. Form a call line through, and connects the incoming call from the Internet to the Internet phone exchange device 200.

The telephone 300 is a typical telephone used for making calls over a general telephone network (PSTN).

Internet phone switching device 200 is a user using a telephone call to a general telephone network, a user using a telephone to run the Internet phone program of the PC, or when the caller makes a call through the Internet phone program of the PC Allow the user to form a call line through the phone, or, if the caller is calling from the outside through the general telephone network, make a call line through the Internet phone program of the PC, or receive a call from the telephone network through the telephone line. It can be formed, or it can perform a gateway function that connects the incoming call to the Internet phone to other subscribers of the general telephone network. In addition, when the telephone is used during the formation of the call line or regardless of the call, predetermined voice information may be provided to the user at idle time.

On the other hand, the Internet phone switching device 200 of the present invention is described as an external device connected to the PC 100 separately in FIG. 1, but is implemented as a device of the PCB card type mounted on the slot socket provided in the PC 100 May be

3 is a connection wiring diagram of the Internet phone switching device 200 according to the present invention.

First, the keyboard 101 and the mouse 102 of the PC 100 are connected to the PC 100 via the Internet phone exchange apparatus 200. The reason why the keyboard 101 and the mouse 102 are connected to the Internet phone switching device 200 is that the Internet phone switching device 200 emulates the operation of the keyboard or the mouse when sending a command to an existing Internet phone program. This is because the Internet phone exchange apparatus 200 should be connected to the keyboard and mouse connection terminals of the PC 100.

Alternatively, a special cable or an adapter for plugging the cables from the keyboard 101 and the mouse 102 into the PC 100 and the Internet phone switching device 200 at the same time is provided, and the keyboard 101 as shown in FIG. 4 is provided. Alternatively, both the signal from the mouse 102 and the signal from the Internet phone switching device 200 can be transmitted to the PC 100. In this case, when the user is using a keyboard or mouse, the Internet phone switch 200 detects whether there is a signal from the keyboard or mouse in order to prevent the phone from sending out a signal to the cable. It is preferable to provide a circuit to make.

Internet phone switching device 200 is also connected to a general telephone line and a general telephone 300 from the general telephone network, it is possible to make an Internet phone call or a trunk line call using a general telephone.

In addition to the dedicated general telephone 300, the telephones 300a..300n connected to other stations may be connected to the Internet phone switching apparatus 200 in parallel.

Internet phone switching device 200 is also connected to the sound card of the PC 100, to send and receive voice signals required for Internet phone calls.

The internet phone switching device 200 may also be connected to an interface such as a serial port or a USB port of the PC 100 to exchange information with a management program installed in the PC 100.

Next, the internal structure of the Internet phone switching apparatus of the present invention will be described with reference to FIGS.

Figure 2 is a detailed block diagram showing the internal configuration of the Internet phone switching device of the present invention and the connection state with a PC, Figure 5 is a schematic block diagram showing the internal configuration of the Internet phone switching device of the present invention.

The trunk line is connected to the Internet phone exchange apparatus 200 of the present invention. The trunk line interface unit 213 of FIG. 5 functions as ring detection, on / off hook control, and insulation with the trunk line for connection with the trunk line.

The trunk line interface unit 213 includes a ring detector 10, a relay 9, and a second transformer 11 in FIG. 2. The ring detector 10 detects a ring signal input through a general telephone network and outputs it to the CPU 22. The relay 9 is used for on-off hook control, and the second transformer 11 functions to insulate the trunk line.

Internet phone switching device 200 is also connected to the general telephone 300. The telephone interface unit 212 is provided for this purpose. The telephone interface unit 212 serves to supply power to the telephone, generate a ring signal, detect a hook state of the telephone, and the like.

In FIG. 2, the telephone interface unit 212 includes a power supply unit 3, a ring generating unit 4, a hook state detection unit 5, and a first transformer 8. The power supply unit 3 serves to supply a DC current to the phone 300, and the ring generator 4 generates a ring signal for informing that the call has been made and supplies the phone 300 to the phone 300. . The hook state detecting unit 5 detects whether the telephone 300 is in an on-hook state or an off-hook state and reports the status to the CPU 22.

The relay 214 serves to directly connect the telephone line and the trunk line when the Internet phone switching device 200 is not supplied with power or the Internet phone switching device 200 is broken. That is, the relay 214 maintains the off state when the internet phone switching device 200 is in operation, but if the internet phone switching device 200 does not operate, the relay 214 maintains the on state so as to directly connect the telephone line and the trunk line. Will let you. In FIG. 2, the relay 6 and the relay 7 serve as the relay 214 of FIG. 5. That is, when the Internet phone switching device 200 does not operate, the relay 6 is connected to c and b, and the relay 7 is turned on so that the phone 300 is directly connected to the trunk line.

It is also possible for the internet phone switching device 200 to connect other telephones 300a..300n of the premises auxiliary wiring. For this purpose, a relay 2 and a power detector 211 are provided.

The power detector 1 detects whether or not the auxiliary wiring for connecting the plurality of telephones 300a..300n in parallel with the telephone 300 is in use in another system, and outputs the same to the CPU 22. The parallel connection switch 2 receives the detection signal by the power detector 1 and the plurality of telephones connected to the premises auxiliary wiring in response to the control signal of the CPU 22 outputted when the premises auxiliary wiring is not used by another system. Make a parallel connection with the above phone.

The voice recording / playback unit 13 plays a role of recording and playing back voice. When a call line is formed through an Internet phone, or when a call line is formed by a general telephone network, or when a telephone is used regardless of a call, the voice recording / reproducing unit 13 controls the voice under the control of the control unit 210. By using the information and the auto answer function, a voice message for the next operation is sent to the caller, and a voice signal input from the caller is stored. In FIG. 2, the voice is stored in the flash memory 19.

The voice information includes all information that can be provided by voice including advertisement information or learning information, and the voice information is periodically updated. The update method is performed by using voice information provided through a corresponding management site on the Internet. Is updated.

That is, the management site on the Internet where the user is provided with voice information registers the users who have the call connection control device 200 to which the present invention is applied as a member, and periodically generates predetermined voice information according to the needs of the member users. The PC 100 transmits the flash memory 19 to the Internet phone exchange apparatus 200.

The call progress tone decoder 17 monitors the state of a connection process of a call line formed through an Internet phone or a call line formed by a general telephone network.

The DTMF detector 12 detects a DTMF signal input through an Internet phone or a general telephone network or the phone 300.

The DTMF generation unit 16 plays a role of generating a DTMF signal under the control of the control unit 210, and the generated DTMF signal is transmitted to the trunk line via the switch unit 207 and the trunk line interface unit 213.

The switch unit 207 is a trunk line, a telephone, a sound card, a DTMF detector 12, a voice recording / reproducing unit 13, a DTMF generating unit 16, and a call progressive stone decoder 17 under the control of the control unit 210. ) To connect or disconnect between In FIG. 2, the relays 15, 14, 6 serve as switches.

Internet phone switching device 200 is connected to the sound card of the PC. The sound card interface unit 201 is a circuit for connection with a sound card of a PC. In FIG. 2, the echo canceller and the 2-wire / 4-wire converter 18 serve as the sound card interface unit 201.

The echo canceller and two-wire / four-wire converter 18 separate the two-wire voice signal mixed with the transmission / reception signal of the telephone or telephone network into the voice output to the Internet and the voice input from the Internet. When a voice signal is output to the Internet using a telephone network or a telephone, the voice signal is output to the input unit of the sound card 30 of the PC 100, and the voice signal output from the sound card 30 is input to the general telephone network.

The external phone 20 may also be connected to the external speaker 20 and the external microphone 25. The speaker switching unit 21 determines whether to output the audio signal output from the sound card 30 to the external speaker 20 or the echo canceller and the 2-wire / 4-wire converter 18 in response to the control signal of the CPU 22. do. The microphone switching unit 26 determines whether to receive the microphone input to the sound card 30 from the external microphone 25 or the echo canceller and the 2-wire / 4-wire converter 18 in response to the control signal of the CPU 22. .

In the present invention, there is no limitation on the Internet phone software installed in the PC 100. In other words, the existing Internet phone software can be used as it is. To this end, the internet phone switching apparatus 200 is provided with a mouse emulator 23 and a keyboard emulator 24.

When the Internet phone exchange apparatus 200 issues a command to the Internet phone software installed in the PC 100, a command should be generally issued by a protocol supported by the Internet phone software. However, since different protocols can be used according to the type of Internet phone software, all of these protocols must be supported to be able to use regardless of the specific Internet phone software. However, there may be software that does not support such a protocol, and it is impossible to support all existing software and protocols of upcoming software. Therefore, in the present invention, the operation of the mouse and keyboard in the Internet phone switching apparatus 200 is not possible. It emulates to give a command.

That is, the mouse emulator 23 and the keyboard emulator 24 are cursors on the screen of the PC 100 based on the mouse cursor position values and the input field position values detected and provided by the management program of the PC 100. Position movement, button click and key value can be input.

For example, if you want to make a call, use the keyboard to select the dialing function, use the mouse to click the phone number input window, and enter the phone number using the keyboard. And keyboard emulator 24 emulates.

For this operation, it is necessary to intercept the signals of the mouse and keyboard input to the PC 100. To this end, the mouse switching unit 28 determines whether to output the signal input from the mouse 29 or the mouse emulator 23 to the mouse input 27 in response to the control signal of the CPU 22, and the keyboard switching unit 32 ) Determines whether to output the signal input from the keyboard 33 or the keyboard emulator 24 to the keyboard input 31 in response to the control signal of the CPU 22.

Of course, the present invention is not limited to using such an emulation, Internet phone switching apparatus 200 using a serial port or a parallel port according to the protocol used in a particular Internet phone program without using a mouse emulator or keyboard emulator (200) It is also possible to give a command to the PC 100 through the PC interface unit 204 in the).

The control unit 210 controls the operation of the Internet phone switching device 200. In FIG. 2, the CPU 22 is used as the controller 210.

The CPU 22 receives a signal output from the hook state detector 5, the ring detector 10, the call progress tone decoder 17, the DTMF detector 12, and the power detector 1, and outputs a voice recording / reproducing unit. 13, the DTMF generator 16, the ring generator 4 controls the entire system to form a call line through an Internet phone or a general telephone network, PC 100, mouse cursor position information, input focus information, etc. Exchange mutual control information.

The CPU 22 outputs a mouse emulator or a keyboard emulator driving signal when the button signal of the telephone is input, and when the button signal of the telephone is input.

Next, the operation of the Internet phone switching apparatus according to the present invention configured as described above will be described in detail.

The internet phone switching apparatus 200 may operate in two modes. One is normal mode for making normal calls and the other is auto answer mode. In the answering machine mode, the Internet phone switching device 200 operates as an answering machine or a gateway device.

<Normal mode>

First, the operation in the general general mode will be described.

In the standby state where the Internet phone switching device 200 is not in a call state, the CPU 22 forms a circuit by c and b of the first TEL switching unit 6, and the emergency connection switch 7 is turned off. Then, the line switch 9 is turned off, and a circuit is formed by c and a of the second TEL switching unit 14, and a circuit is formed by c and b of the IPHONE switching unit 15, and the microphone switching unit A circuit is formed by c and b in (26), and a circuit is formed by c and b in the speaker switching unit 21. In the present invention, basically after the end of the call is always switched to the standby state.

When the user wants to make a telephone call to the Internet network using the telephone 300 in the standby state, when the user lifts the handset, the CPU 22 detects the hook off signal input from the hook state detection unit 5 and the first TEL. A circuit is formed through c and a of the switching unit 6, and the signal input and output through the circuit thus formed is connected to the first transformer 8 for insulation.

When you pick up the phone, it will automatically decide whether you want to make a call via Internet phone or a CO line depending on the current connection settings. The current connection settings can be changed by holding the phone and entering a special code for changing the connection settings.

When the user picks up the phone, the CPU 22 sends out two distinct short sounds according to the current connection setting, so that the user knows whether the call is connected to the Internet or the general telephone network. To be able.

In addition, by outputting the voice information data to the voice recording / playback unit 13, it is possible to control the voice information broadcast to be transmitted to the user. That is, the sound generated from the voice recording / reproducing unit 13 is controlled to be output to the user through the first transformer 8.

The user outputs a sound informing that the internet phone network is selected, and the user inputs the IP number of the call partner or the phone number of the other party using a button provided in the phone 300.

Then, the CPU 22 receives an IP number or a telephone number through the DTMF detector 12. On the other hand, if the signal input by the user to operate the button of the telephone 300 is not the IP number or the telephone number, the CPU 22 determines whether the command to select the telephone book.

As a result of the determination, if the command selects the phone book, the CPU 12 sends a command to the management program of the PC 100 to call and execute the phone book program of the PC 100 and output it on the screen, and the user displays the screen. It is possible to select a predetermined telephone number from the telephone directory output on the screen, otherwise outputs the signals input by the button operation of the user's telephone 300 to the program management program of the PC 100.

Then, the management program of the PC 100 determines whether the input signal is IP information or telephone number information, inputs the corresponding field of the Internet phone program according to each mode, and starts dialing.

At this time, all sounds generated by the Internet connection program output from the speaker output terminal of the sound card 30 included in the PC 100 are echo cancellers using the call circuit formed through c and a of the speaker switching unit 21. And a 2-wire / 4-wire converter 18, the microphone switching unit 26 forms a circuit with c and a, and the input / output is combined in the echo canceller and the 2-wire / 4-wire converter 18. .

That is, the two-line input / output of the echo canceller and the two-wire / four-wire switching device 18 are connected to the c portion of the IPHONE switching unit 15, and are connected to the call circuit formed through c and a of the IPHONE switching unit 15. Is entered.

Therefore, the outputs of the echo canceller and the 2-wire / 4-wire converter 18 are connected to the call progress tone decoder 17, and the call progress tone decoder 17 monitors the connection state to the called party and then goes to the called party. If the connection is successful, a signal indicating that the connection is successful is output to the CPU 22.

At this time, the CPU 22 stops the transmission of the voice information transmitted to the user through the voice recording / playback unit 13, and through the circuit formed through c and b of the second TEL switching unit 14 of the user and the counterpart. Control so that voice signal can be input / output.

Accordingly, the two-line side input and output of the echo canceller and the two-wire and four-wire converter 18 pass through the first TEL switching unit 6 via the second TEL switching unit 14 and the first transformer 8. Connect to 300 to form a series of communication circuits.

On the other hand, the voice recording / reproducing section 13 continues to transmit the preset voice information content during this series of processes until the call is made with the called party.

A case of calling a general telephone network (PSTN) using the telephone 300 will be described. When the user lifts the handset, the hook state detection unit 5 generates a hook off signal, and when the CPU 22 detects the hook off signal using the signal output from the hook state detection unit 5, the hook state detection unit 5 generates a hook off signal. 1 A circuit is formed through c and a of the TEL switching unit 6 to connect the telephone 300 to the first transformer 8.

In addition, the CPU 22 transmits two distinctive short sounds, respectively, according to the current connection settings, and allows the user to confirm the connection selection state to the Internet network and the general telephone network, and the CPU 22 records voice. The voice information data is output to the playback unit 13 so that the voice information broadcast is transmitted to the user.

On the other hand, the current connection setting is set to form a call line using the Internet phone network, if the user wants to form a phone call line using a general telephone network (PSTN) code for selecting a general telephone network You can dial.

When the general telephone network PSTN is selected by the user's selection, the CPU 22 outputs a predetermined specific sound so that the user can recognize that the telephone line can be formed by the general telephone network PSTN.

When the user inputs the telephone number of the party to be called using the button provided in the telephone 300, the CPU 22 determines whether the button input signals from the DTMF detector 12 are to select a telephone number from the telephone directory. If it is determined that the command is to select a phone number from the phone book, the CPU 22 calls the phone book program of the PC 100 so that the user can select a desired phone number from the phone book of the PC 100. Otherwise, the input signals are output to the DTMF generator 16 according to the selection of the button.

Meanwhile, the CPU 22 connects a and b of the line switch 9 so that the general telephone network PSTN is connected to one side of the second transformer 11 for insulation via the line switch 9, and the second The opposite side of the transformer 11 allows the DTMF generator 16 and the call progress tone decoder 17 to be connected, and the DTMF generator 16 dials in response to a signal corresponding to a telephone number input from the CPU 22. Generate a ring tone and start dialing.

Then, the call progress tone decoder 17 monitors the connection state to the called party, detects this when the call line is connected to the called party, and outputs the detected signal to the CPU 22.

Then, the CPU 22 stops the transmission of the voice information transmitted from the voice recording / reproducing section 13, and the CPU 22 supplies a signal input through the call line connected to the called party to the user. 2 TEL switching unit 14 is controlled to form a call circuit through c and b so that a signal input from a general telephone network (PSTN) is passed through a line switch 9 and a second transformer 11 for insulation, and a second TEL. To be connected to the switching unit (14).

The CPU 22 passes through a circuit formed through c and b of the second TEL switching unit 14 to form a circuit formed through c and a of the first transformer 8 and the first TEL switching unit 6 for insulation. Connected to the phone 300 through the control so that a series of call circuit can be formed.

At this time, the voice recording / reproducing section 302 continuously transmits the preset voice information content during this series of processes until the call is made with the called party.

Next, a description will be given of an operation when a telephone call is received from a general telephone network. When the CPU 22 detects a ring signal output from the ring detector 10, the CPU 22 controls the ring generator 4 to generate a ring signal on the telephone line.

In addition, when the user picks up the handset and the hook switch is turned off, the hook state detection unit 5 outputs a hook off signal, and the CPU 22 receives the signal to sense the off state of the hook switch to detect the hook switch. Control a and b to be connected.

Then, the CPU 22 forms a circuit through c and b of the second TEL switching unit 14, and forms a circuit through c and a of the first TEL switching unit 6 to operate the line switch 9. The signal of the general telephone network (PSTN) passed through the telephone 300 through the second transformer 11, the second TEL switch 14, the first transformer 8 and the first TEL switch 6 for insulation. Form a call circuit to be output to the.

Next, the operation when a call is received from the Internet will be described. When the CPU 22 receives the information that the call request is received from the PC 100 over the Internet, the CPU 22 controls the ring generator 4 to generate a ring signal on the telephone line.

In addition, when the user picks up the handset and the hook switch is turned off, the hook state detection unit 5 outputs a hook off signal, and the CPU 22 receives the signal and detects the off state of the hook switch to detect the first TEL switching unit ( It forms through c and a of 6), forms a circuit through c and a of the 2nd TEL switching part 14, and forms a circuit through c and b of the IPHONE switching part 15. FIG.

The CPU 22 forms a circuit through c and a of the microphone switching unit 26, and forms a circuit through c and a of the speaker switching unit 21 to form a series of call circuits.

On the other hand, when the user puts down the handset, the CPU 22 detects the on state of the hook switch output from the hook state detection unit 5, switches to the standby state before answering a series of circuits, and terminates the call to the PC 100. The request signal is output to release the normal mode by the management program of the PC 100.

<Auto Answer Mode>

Setting to the answering machine mode is made by the user dialing the answering machine setting code using the telephone 300. The change from the auto answer mode to the normal mode is likewise made by the user dialing the general mode setting code using the telephone 300.

In the answering machine mode, when a call is received, the voice / recording / reproducing unit 13 transmits the recorded voice message and records the caller's voice. In addition, a gateway function may be performed to connect a call received through a general telephone network with another person through the Internet, or to connect a call received through the Internet with another person through a general telephone network.

When the automatic answering mode is set and performs a gateway function for connecting a call received through a general telephone network (PSTN) to an Internet phone, the CPU 22 recognizes that the call is received through the ring signal detector 10 to the general telephone network. And a circuit is formed by a and b of the line switch 9, and a circuit is formed through c and b of the second TEL switching unit 14 so that the DTMF detector 12 and the voice recording / reproducing unit 13 are formed. Connect with CO line.

In addition, the CPU 22 controls the automatic response message to be output through the voice recording / reproducing unit 13, and allows the tone signal of the caller to be received using the DTMF detector 12.

If the caller wants a gateway function for using the Internet phone, the CPU 22 permits the gateway function to the Internet through a user authentication procedure through the voice recording / playback unit 13 and the DTMF detector 12, and the PC. Send an Internet phone driving signal to the (100) to allow the management program to run the available Internet phone program and at the same time receiving the IP number or phone number of the destination to be input from the other party to the Internet phone available on the PC (100) The program is sent to the management program to be entered in the input field of the program, and the management program dials the Internet phone.

At this time, the CPU 22 may transmit the designated voice information contents stored in the flash memory 19 through the voice recording / reproducing section 13 during the idle time until the call is connected to the other party through the Internet phone.

The CPU 22 checks whether a call connection success signal is input from the management program of the PC 100, and when the call connection success signal is input as a result of the check, the CPU 22 performs voice recording / playback so as not to disturb the call line. The voice information output through the unit 13 is interrupted, and a call circuit is formed through a and c of the IPHONE switching unit 15, and an input signal is transmitted through an echo canceller and a 2-wire / 4-wire converter 18. Control the output signal to be separated.

Then, the 4-line output signal of the echo canceller and the 2-wire / 4-wire converter 18 is input to the microphone input terminal of the sound card 30 using a circuit formed through c and a of the microphone switching unit 26, The four-line input signal of the echo canceller and the two-wire / four-wire converter 18 is input through a circuit in which a signal output through the speaker output terminal of the sound card 30 is formed through c and a of the speaker switching unit 21. do.

A case where the telephone 300 receives a call received through a general telephone network while being set in the auto answer mode will be described. The CPU 22 recognizes that a call is received through the ring signal detector 10, forms a circuit through a and b of the line switch 9, and c and b of the second TEL switching unit 14 A circuit is formed to connect the DTMF detector 12 and the voice recording / reproducing section 13 to the trunk line.

In addition, the CPU 22 controls the automatic response message to be output through the voice recording / reproducing unit 13, and allows the tone signal of the caller to be received using the DTMF detector 12.

When the caller makes a call with the user using a normal telephone 300 and inputs a predetermined signal according to the answering machine message, the CPU 22 recognizes this through the DTMF detector 12 and generates a ring. The unit 4 is controlled to give a ring signal to the telephone 300. At this time, when the user answers the call and monitors the hook state detection unit 5 and the hook switch is turned off, the CPU 22 forms a circuit through c and a of the 1 TEL switching unit 6, and the ordinary telephone The voice signal is input and output through 300 to form a call line between the user and the caller.

At this time, when the auxiliary line is in a connectable state and a plurality of telephones are connected, the CPU 22 controls the parallel connection switch 2 so that the user can answer a call even by using another telephone connected to the auxiliary line. .

When the auto answering mode is set and a telephone call is received from a voice mail box in the absence of a voice mail, the CPU 22 recognizes this through the ring signal detector 10 and through a and b of the line switch 9. A circuit is formed to answer a call, and a circuit is formed through c and b of the second TEL switching unit 14 so that an auto-answer message output from the voice recording / playback unit 13 is output to the caller. The signal input from the calling caller can be input through the DTMF detector 12.

If the caller wants to leave a message in the mailbox by using the general telephone 300 according to the auto-answer message, he dials the corresponding code. The CPU 22 recognizes this through the DTMF detector 12 and stores the voice message from the public telephone network PSTN in the flash memory 19 through the voice recording / reproducing section 13.

The following describes a case in which the gateway function, which is set to the auto answer mode and connects an incoming call to an Internet phone, to another subscriber in a general telephone network. When the CPU 22 receives the information that there is a call request of the Internet phone from the PC 100, the CPU 22 forms a circuit through c and a of the microphone switching unit 26, and c and a of the speaker switching unit 21 are set. The circuit is formed through, and the circuit is formed through c and b of the IPHONE switching unit 15.

Then, the CPU 22 forms a circuit through c and a of the second TEL switching unit 14 so that an automatic response message is output through the voice recording / reproducing unit 13, and the caller who makes a call through the Internet. A signal input from the terminal is received through the DTMF detector 12.

Basically, the caller who makes a call over the Internet receives the instructions through the auto-reply message and proceeds to the next operation by performing the input using DTMF TONE.

If the caller wants a gateway function for Internet phone use, the CPU 22 performs a user authentication process through the voice recording / reproducing unit 13 and the DTMF detector 12 to perform a gateway function to a general telephone network (PSTN). The CPU 22 outputs the telephone number received from the caller to the DTMF generator 16, forms a circuit through a and b of the line switch 9, and the CPU 22 transmits the DTMF generator ( 16) outputs a predetermined signal, the DTMF generator 16 generates a dialing tone in response to the signal input from the CPU 22 to start dialing, and the call progress tone decoder 17 returns to the called party. While monitoring the connection state of the connection to the called party, the CPU 22 outputs a signal indicating the connection state.

The CPU 22 stops the transmission of the voice information transmitted from the voice recording / reproducing section 13 so as not to disturb the conversation, while the CPU 22 and c of the second TEL switching section 14 A circuit is formed through b, and the CPU 22 forms a circuit through a and c of the IPHONE switching unit 15.

As described above, a signal is formed and input and output from the IPHONE switching unit 15 is input and output to the echo canceller and the 2-wire / 4-wire converter 18, and the echo canceller and the 2-wire / 4-wire converter 18 Separate the input and output signals.

That is, the four-line output signal of the echo canceller and the two-wire / four-wire converter 18 is input to the microphone input terminal of the sound card 30 through a communication circuit formed through c and a of the microphone switching unit 26. The four-line input signal of the echo canceller and the two-wire / four-wire converter 18 is input through a circuit formed by c and a of the speaker switching unit 21 through a signal output through the speaker output terminal of the sound card 30. .

That is, in the general telephone network, the second transformer 11 for insulation via the line switch 9, the call circuit formed through c and a of the IPHONE switching unit 15, and an echo canceller and a 2-wire / 4-wire converter ( 18, a series of communication circuits consisting of the sound card 30 is formed.

On the other hand, the CPU 22 determines the call connection state through the call progress tone decoder 17 or through a management program of the PC 100 monitoring the current call line state of the Internet phone. During the period of occurrence, the voice information of the flash memory 19 is output through the voice record / playback unit 13 through the telephone 300, the general telephone network, the internet network, and the like, so as not to be used for the actual call of the call line. Instead of listening to unnecessary call progress tones during idle time, it is possible to listen to voice information, and when the called party receives a call, the CPU 22 controls the voice recording / reproducing unit 13 to play the voice currently being played. The information is interrupted and a call line is established with the called party immediately.

The voice information output in the above-described period can be reproduced at a specific time regardless of whether the call is in progress or under the call with the user's permission, and when the voice information is reproduced and outputted, the mileage is provided to the user according to a separate rule. The CPU 22 stores this record in the flash memory 19, and this information can be transmitted to the management site of the Internet at a predetermined time interval when the connection to the Internet is made under the permission of the user.

In addition, the voice information output method may mix and output the voice information playback sound and the call progress signal sounds at a set ratio when the user dials, thereby preventing the user from pressing a button incorrectly while dialing.

The voice information can be remotely registered and changed at the main management site as necessary, and the user may allow or disallow the change of voice information data, and accordingly, some of the functions of the Internet phone switching device may not be implemented. .

As described above, according to the Internet phone exchange apparatus of the present invention, the present invention can make a call from the Internet to a general telephone, can connect a call from the Internet to other subscribers of the general telephone network, Internet phone can be implemented by using, and it is possible to connect the call from the general telephone network to the Internet phone, so the Internet can be used as a means of communication even in places where it is difficult to use the Internet.

In addition, the present invention can output useful information stored in the device by utilizing the idle time that occurs frequently every time the phone is used, and the output is stored in the device, even when the communication is not connected The above-mentioned information can be heard, and it is possible to catch the relatively neglected information by carrying on the telephone use behavior that is frequently encountered in daily life, without restricting the calling behavior, and when the speech information is the advertisement information, the advertisement information. Regardless of the time when the call line is formed or the call is output even when the user uses the phone, if the user does not continuously hear the output, normal calls cannot be made, unlike on-screen advertisement information that requires the user's will. Because it is implemented by the user There is an effect that can increase the contact rate advertising.

Although the present invention has been described with reference to a preferred embodiment of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. It will be appreciated.

Claims (10)

PC interface unit for data communication with a PC, A telephone interface unit for connecting a general telephone including a ring generator, a power supply unit and a hook state detection unit; A trunk line interface unit for trunk line connection including a ring detector and a line connection switch; DTMF detectors for decoding DTMF signals from telephones, trunk lines or sound cards, A DTMF generator for generating a DTMF signal, A call progress tone decoder for detecting a call progress tone, A switch unit connecting the telephone interface unit, the trunk line interface unit, the DTMF detector, the DTMF generator, and the call progress tone decoder; Voice recording / playback unit for recording and playing voice and storing voice information, If the set mode is the normal mode, the DTMF code from the caller is detected through the DTMF detector. If the detected DTMF code is a call setup code, the switch unit is controlled to connect the call path, and the detected DTMF code is a receiver. In the case of the phone number, the DTMF generator controls the DTMF to generate the DTMF and transmits it to the trunk line.If the set mode is the auto answer mode, the caller first connects the voice recording / playback part to the voice message. The controller controls the switch to download the voice information through the PC interface unit and store the voice information in the voice recording / playback unit. The voice information stored in the voice recording / playback unit is transmitted to the user while the call line is formed. Internet phone exchange device having a. The method of claim 1, It is connected between the CO line and the subscriber line, and the Internet phone further comprises an emergency switch for disconnecting between the CO line and the ordinary telephone, and connecting directly between the CO line and the ordinary telephone when power is not supplied. Exchange device. The method of claim 1, A mouse emulator connected between a mouse and a mouse port of the PC and converting an instruction to the PC into motion data of the mouse under the control of the controller and transmitting the mouse data to a mouse port of the PC; Connected between the keyboard and the keyboard port of the PC, the keyboard emulator converts the command data to the PC to the movement data of the keyboard under the control of the controller and transmits the data to the keyboard port of the PC Internet phone exchange device further comprising. The method of claim 3, A relay is provided between the mouse and the mouse port of the PC and the mouse emulator, and a mouse port of the PC is connected to the common terminal of the relay. And a relay is provided between the keyboard and the keyboard port of the PC and the keyboard emulator, and the keyboard port of the PC is connected to the common terminal of the relay. The method of claim 1, The Internet phone exchange device further includes a sound card interface for connecting to the sound card of the PC, The sound card interface unit is connected to the switch, The sound card interface unit connects a voice output terminal from a sound card to an external speaker or the sound card interface unit, and a relay connects a voice input terminal to a sound card to an external microphone or the sound card interface unit. Connected to the sound card, The control unit transmits data corresponding to the DTMF code to the PC through the PC interface unit when the DTMF code from the caller detected by the DTMF detector is the IP address of the receiver. And the switch for controlling the card interface unit and the telephone interface unit. The method of claim 1, And a power detector for checking whether the telephone connected to the premises auxiliary wiring is in use, and a parallel connection switch for connecting the telephone interface unit to the premises auxiliary wiring. And the controller controls the parallel connection switch to be connected when the telephone connected to the premises auxiliary wiring from the power detector is not in use. delete delete The Internet phone exchange apparatus of claim 1, wherein the PC interface unit is an interface with a card slot of a PC, and the Internet phone exchange apparatus is installed in a PC card slot in the form of a PC card. The apparatus of claim 1, wherein the controller is configured to listen to different kinds of sounds according to a set mode when the user hears the handset of the telephone.