KR100250930B1 - Telecommunication system using internet - Google Patents

Abstract

PURPOSE: A telephone communication system utilizing the Internet is provided to make a wiring ring to perform a sound pressure raising and a sound source filtering by using an existing PC phone card, and to make voice input/output terminals of a universal sound card smoothly exchange signals, then to make a client user remotely control a PC phone card of a gateway PC. CONSTITUTION: A mono cable(3) is connected between a speaker output terminal(SPK OUT) of a sound card(1) and a microphone terminal(MIC-IN) of a PC phone card(2). A sound pressure raiser(4) and a sound source filter(5) are connected in the middle of the mono cable(3). The sound source filter(5) manages a sound source filtering function organic to a mono jack connected the microphone terminal(MIC-IN). The sound pressure raiser(4) and the sound source filter(5) input receiving signals from a remote place to the PC phone card(2) from the sound card(1). A PSTN(Public Switched Telephone Network) signal(analog signal) is inputted to a line(LINE IN) terminal of the sound card(1) through a stereo cable(6) from the speaker output terminal(SPK-OUT), to transmit an Internet signal to the remote place.

Description

Telephone communication system using the Internet

The present invention relates to a telephony communication system utilizing the Internet to enable voice communication between a remote PC and a general telephone by implementing a voice signal connection between an internet phone and a general PSTN via the Internet. will be.

In general, a PC phone card is a PC card with a general phone function, and only a general phone call using a PSTN is possible. In this case, if a computer equipped with a PC phone card attempts to make a telephone call abroad, the call cannot be made between the two countries without going through the public switched telephone network.

Conventional technologies for voice communication using the Internet include PC to PC Internet phones and Internet phones in the concept of PC to Phone.

The PC-to-PC internet phone concept uses a computer connected to the Internet to make a call to an Internet phone program. The signal is sent from a server or a remote computer that has a computer connected to the Internet by direct IP address call. The connection is established by signaling the receiver.

In the case of a technology having a concept of PC to Phone, voice communication to a remote location is possible using the Internet. In this case, a user connects to a gateway server and a gateway server is provided with a separate server fee. It allows you to make phone calls with local telephone users in your area.

However, in the case of the PC to PC Internet phone, both the transmitting and receiving sides have a PC, and both PCs have a problem in that both PCs are connected to the Internet while the power is turned on.

In addition, even in the case of the Internet phone of the PC to Phone concept, there is a problem in that a separate server fee must be paid to an Internet gateway server commercially constructed at a remote location.

The present invention has been made to solve such a conventional problem, by using a simple voice signal control means, the sender does not go through a remote commercial Internet phone gateway server, without a separate server fee through the Internet, the existing The present invention provides a telephony communication system using the Internet to realize PC to Phone connection through a small office and home 1-channel gateway in a remote location organically implemented with a general sound card and a PC phone card.

1 is a wiring diagram of a sound card and a PC phone card constituting a gateway card of the present invention;

2 is a schematic diagram of a mono cable provided with a sound pressure booster and a sound source filter of the present invention;

3 is a flow chart of the gateway card remote control and voice transmission of the present invention.

* Explanation of symbols for main parts of the drawings

1: sound card 2: PC phone card (gateway card)

3: mono cable 4: sound booster

5: sound source filter 6: stereo cable

7: Output mono jack 8,8a: Main line

9: input mono jack 10: round wire

A: filter output stage 24: web server

25,25a: Internet Phone 26: Remote Phone

In order to achieve the above object, the present invention uses a conventional PC phone card to create a wire loop to enable sound pressure promotion and filtering of the sound source to facilitate mutual signal exchange with voice input / output terminals of a general-purpose sound card, and a client user. 1-channel internet phone gateway, a kind of PC to Phone concept, is implemented by allowing remote control of PC phone card of gateway PC.

More specifically, the basic Internet phone gateway function that converts the Internet digital voice signal transmitted from the remote PC by the client user into the PSTN analog voice signal replaces the existing gateway card, and the general user replaces the conventional sound card speaker. Connect the sound pressure booster to promote sound pressure and the sound source filter to filter the sound source between the microphone terminal of the PC phone card at the output terminal, and generate the DTMF signal (Dial Tone Multi Frequency) recognized by the PSTN network in the PC phone card. It is characterized by remote control on-line.

Hereinafter, the accompanying drawings will be described with reference to those skilled in the art to easily implement the present invention.

The general sound card refers to a sound card that supports full-duplex that can hear and speak at the same time during a call. The organic connection state between the terminals of the sound card and the PC phone card is shown in FIG.

Fig. 1 is a wiring diagram of a sound card 1 and a PC phone card 2, which provides a core function for implementing one gateway (Internet phone gateway) constituting the present invention. A mono cable 3 is connected between the speaker output terminal SPK OUT of the sound card 1 and the microphone terminal MIC-IN of the PC phone card 2. In the middle of the mono cable 3, a sound pressure booster 4 and a sound source filter 5 are connected. Here, the negative pressure booster 4 includes a mercury battery having an open voltage of 1.35 to 1.5V. The sound source filter 5 is additionally added to perform an organic sound source filter function to the mono jack connected to the microphone terminal MIC-IN on the PC phone card 2 side of the mono cable 3. The mono cable (3) and the sound pressure booster (4) and the sound source filter (5) connected in between are connected to input the incoming signal from the remote from the sound card (1) to the PC phone card (2) The PSTN signal (analog signal) coming from an ordinary telephone is connected to the line in terminal of the sound card 1 through the stereo cable 6 from the speaker output terminal SPK-OUT of the PC phone card 2. It is inputted as and sends internet signal (digital signal) to remote site.

In the present invention, the cable configuration between the PC phone card (2) and the sound card (1) and the connection method (order) of the components can be applied to voice exchange between the modem and sound card of the DSVD or ASVD method. Does not exclude

FIG. 2 is a schematic diagram of a mono cable 3 provided with a sound pressure booster 4 and a sound source filter 5. FIG. The sound pressure booster 4 is connected with the positive terminal (+) to the main line 8 of the output mono jack 7, which receives a stereo signal from the sound card 1, and the negative terminal (-) is connected to the input mono jack ( 9), and the sound source filter 5 combines the main lines 8 and 8a of the input mono jack 9 and the round lines 10 to connect the microphone terminal MIC of the PC phone card 2 to the main line 8a. Is connected to the filter output terminal A connected to -IN).

3 shows a dialing remote control system of a PC phone card (gateway card), and a dotted line shows a voice transmission flow. The client user 21 first calls the Internet phone 25 by connecting to the web server 24 connected to the LAN card 31 through the Internet browser 23 of the PC 22 connected to the Internet network 30. A virtual channel (1: 1 voice sequencing) established between the Internet phone 25 and the Internet phone 25a is secured. Then, enter the number to be dialed to the form box and press the call button (Hook off) to drive the remote phone (Remote phone: DOS CGI application) 26 embedded in the web server 24, The remote phone 26 dials the regular phone 27 while initializing the PC phone card 2 (assigning a registry of hardware on OS). After dialing, the client user 21 waits for a connection with the general telephone 27 through the PSTN 29 and makes a call, and then presses the end button (Hook on) at the end of the call. When the client user 21 leaves the web server 24, the registry of the PC phone card 2 is automatically released.

The remote phone 26 eventually serves to remotely control a PC phone card (gateway card) 2, and the remote phone 26 is, for example, the website of Orelissa (0relley). 1ver.) Or on a program such as CSM's Alibaba web server. The Internet phones 25 and 25a include software of the H323 series of the Internet Phone Transfer Protocol.

With the general sound card installed on the personal PC of the present invention as described above, the remote small station and home 1 channel gateway constructed as a simple PC phone card is used for remote dialing control. It can perform voice communication gateway function of PC to Phone concept to directly connect remote PSTN regular phone without going through commercial internet phone gateway server or additional server fee. In addition, when connected with the company's private telephone exchange has the advantage that you can talk to all the phones in the premises.

Claims (2)

(Correction) A basic Internet phone gateway function that converts an Internet digital voice signal transmitted from a remote place by a client user into a PSTN analog voice signal, so that the sound pressure and the PC phone card can promote sound pressure promotion and sound source filtering. It is composed of an integrated Internet phone gateway that connects the sound pressure booster and the sound source filter to the input and output terminals of the card and the PC phone card and remotely controls the PC phone card on-line so that a remote client user can generate a DIME signal. Telephone communication system using the Internet. (Correction) The sound pressure booster connected to the sound card and the PC phone card according to claim 1, wherein the positive terminal is connected to the main line of the output mono jack to which a stereo signal is received from the sound card, and the negative terminal is connected to the main line of the input mono jack. And the sound source filter is connected to the filter output terminal connected to the microphone terminal of the PC phone card by combining the main line and the round line of the input mono jack.

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