KR19980077121A - Internet phone using device of regular telephone - Google Patents

Abstract

The present invention provides an apparatus for using an internet phone of an ordinary telephone, which enables an internet telephone to be used as an ordinary telephone by using an internet capable system elsewhere.

The present invention utilizes the function of a sound / modem combo card that supports two telephone line services in a web browser capable of accessing the Internet and an Internet phone capable PC equipped with Internet phone software. It is configured to be connected to external telephone through telephone line by converting into two-wire system.

Description

Internet phone using device of regular telephone

The present invention relates to an apparatus for using an internet phone of an ordinary telephone, which enables an internet telephone to be used as an ordinary telephone by using an internet-enabled system located elsewhere.

With the development of the Internet, Internet phones have been developed that can make international calls at local call rates, and the demand is expected to explode in the future.

To use an Internet phone, you need a system that can theoretically connect to the Internet, such as a computer or a dedicated SetTop Box.

However, such a system is still difficult to carry, so it is not possible to use such an Internet phone from outside.

In view of the above problems, the present invention uses a computer with a built-in sound / modem function that supports two phone line services. An object of the present invention is to provide an internet phone using apparatus of a general telephone.

Internet phone using device of a general telephone according to the present invention for achieving this object is a microphone and speaker of the sound card by using the function of the sound / modem combo (COMBO) card to support two telephone line services to a PC capable of Internet phone It converts the stage into a 2-wire hybrid circuit so that it can be connected to an external telephone through a telephone line.

1 is a block diagram of an apparatus for using an internet phone using a PC capable of a general internet phone

2 is a block diagram of a sound / modem combo card for erasing two telephone lines;

3 is a block diagram of an apparatus for using an internet phone of a normal telephone according to the present invention

* Description of the symbols for the main parts of the drawings *

21: modem 22: sound card

23: PC24: PC interface unit

25, 26: hybrid circuit 27, 28: matching transformer

29, 30: off-hook reel 1, off-hook relay 2

FIG. 1 is a block diagram of an apparatus for using an internet phone using a PC capable of a general internet phone, including a web browser having a modem 1 and a sound card 2 and accessing the Internet. The Internet phone can be used using a PC 3 on which the Internet phone software is installed.

When the user speaks through the microphone MIC of the sound card 2, the sound card 2 converts it into digital and stores it in the main memory of the PC 3.

When the Internet phone software of the PC 3 compresses it and passes it to a web browser, the compressed voice information is transmitted to the modem 1 via the PC interface unit 4 and then received through the PSTN network and the Internet server to the counterpart PC. do.

The compressed voice information received from the counterpart PC is transmitted to the Internet phone software through the web browsers of the modem 1 and the PC 3, where the original digital voice signal is recovered and then stored in the main memory.

This information is passed back to the sound card 2 where it is delivered to the user via a speaker SPK which is converted into an analog signal.

FIG. 2 is a block diagram illustrating a sound / modem combo card supporting two telephone lines. The detailed description of the sound / modem combo card is currently being applied separately from the present application.

Here, since the modem 11 supports the modem / fax / voice function and the sound card 12 supports the voice function, it can support two telephone lines at the same time, and control thereof is performed by a PC (not shown).

The present invention has a function of a combo card supporting two telephone line services or a card capable of performing the same function on the Internet phone capable PC so that the Internet phone can be used as a general telephone. As shown.

As shown in FIG. 2, the microphone and the speaker stage of the sound card 22 are connected to the hybrid circuits 25 and 26 by using the function of the sound / modem combo card that supports two telephone line services in a PC capable of Internet phone. It can be converted into a wire and connected to an external telephone through a telephone line.

That is, the modem 21 and the sound card 22, the PC 23, the web browser and the Internet phone software is installed, the PC interface unit 24 for interfacing the modem and sound card 22 and the PC 23, The modems 21 and sound are respectively connected to the hybrid circuits 25 and 26 and the hybrid circuits 25 and 26 respectively connected to the microphone and speaker terminals of the modem 21 and the sound card 22. Matching transformers 27 and 28 for impedance matching and earth separation between the card 22 and the line, and one side is connected to the matching transformers 27 and 28 and the other is connected to the PSTN network. Off-hook relay 1 and off-hook relay 2 (29) and (30) connected to 2, respectively.

According to the present invention configured as described above, when the user makes a line call from the outside to a regular telephone, the PC 23 asks for a desired service and password through the sound card 22 and sets one of these services as an Internet phone.

When the user wants to use the Internet phone service, the PC 23 connects to the Internet server through the line 1 using the modem 21 and asks the user for the name or ID of the party to call and the user uses the voice or telephone keypad. Answer.

The PC 23 notifies the user when the other party and the Internet phone are connected and allows the user to make a call.

During the call, the user sets an escape code in advance so that the user can freely hang up or want another service.

After the call is over, the user hangs up the phone and the PC 23 recognizes this and completes the service by terminating the modem through the Internet termination procedure.

In addition, it is possible to melt the call information and call details for follow-up management.

As described above, the present invention enables an Internet phone to be used as a general telephone by using the Internet-enabled system, so that international calls can be made available at a lower price than the place where the Internet-enabled system is located.

Claims (1)

2-wire hybrid microphone and speaker stage of sound card using the function of sound / modem combo card that supports two phone line services to internet phone capable PC equipped with web browser and internet phone software with internet access Internet phone using device of the ordinary telephone, characterized in that configured to be connected to an external telephone through the telephone line by converting to the phone.