KR20020017367A - control system for internet phone - Google Patents

Abstract

PURPOSE: An Internet phone matching control device is provided to use general telephones as Internet telephones without additional equipment and the knowledge of personal computers. CONSTITUTION: A subscriber line controller(5) controls a PSTN subscriber line to operate a general telephone as the general telephone is connected to a PSTN network in case that the general telephone is operated as an Internet phone and is connected to a personal computer. The subscriber line controller(5) digitalizes analog voice signals of a subscriber to transmit the digitalized signals to the computer, and receives digital voice signal data from the computer and converts into the analog signals for transmitting to the general telephone through a subscriber line. A DTMF tone sensor(6) senses a key signal after the user hooks off, and senses key information to determine whether the general telephone is connected to the Internet phone or to the PSTN network. A processor(3) initializes and controls the subscriber line controller(5), senses valid DTMF tones in the DTMF tone sensor, controls send/receive signals of voice signals, and controls a path by controlling a relay(7) to connect the general telephone to the PSTN subscriber line or the personal computer according to the selection of the user.

Description

Internet phone matching control device {control system for internet phone}

The present invention relates to an internet phone, and in particular, a problem that has been pointed out as a disadvantage of the conventional internet phone, that is, a separate headphone and microphone, in order to use an internet phone using a terminal device such as a personal computer, Alternatively, a headset or the like should be provided, and in order to compensate for the disadvantage of users who do not know how to use a personal computer, a public landline telephone network (PSTN), which is a general landline network, can be used only by using a conventional landline telephone. The present invention relates to an internet matching control device that allows an internet phone using a personal computer to be used together.

In the conventional Internet phone technology, the Internet phone can be used only when a personal computer and accompanying headphones, a microphone, and a headset are prepared, and a separate landline phone exists separately. In addition, the use of the Internet phone had a technical limitation that can only be used by those who have a lot of personal computer knowledge.

The present invention is to use a conventional telephone without a separate headphone, microphone, headset, etc. in order to improve the conventional problems, without the process of operating a separate personal computer, the existing PSTN network with a conventional landline telephone By providing the service and the Internet phone service, it provides an Internet phone matching control device that can use the Internet phone in the same way as a regular phone.

In addition, the present invention is to calculate the usage time of the Internet phone to convert to the normal telephone usage fee to display the cumulative usage fee to the user, so that the user can use the phone more economically.

1 is an overall block diagram of a device in which the present invention is installed;

2 is a block diagram showing the configuration of the present invention

In order to achieve the above object, the present invention controls the PSTN subscriber line to operate in the same way as when the normal telephone is connected to the PSTN network when the ordinary telephone is operated as an Internet phone and connected to a personal computer. A subscriber line controller (5) which digitizes and transmits the digital voice signal data from the computer, converts it to analog, and transmits it to a general telephone through subscriber preference; DTMF tone detector that detects key information to determine whether to connect to Internet phone or PSTN network preferentially after detecting off-hook key signal (6) )Wow; Initialize and control the subscriber line controller 5, detect valid DTMF tones from the DTMF tone detector, control the transmission and reception of voice signals, and connect a regular telephone to a PSTN subscriber line or a personal computer according to the user's choice It is equipped with a processor (3) to control the route through the control of the relay to connect the general phone port, personal computer port, and PSTN network to connect the general phone port to the port required by the user, It is characterized in that it comprises the input and output signal processing means for displaying the accumulated usage fee by calculating the usage time in terms of the general telephone usage fee.

The present invention is connected between a general telephone and a personal computer, and has a normal telephone port, an RS232 port connected to a personal computer, a port connected to a subscriber line, and can use an Internet phone and a PSTN telephone together as a normal telephone. It is a control method that selects one of the two methods as a key combination of a general telephone, and connects the general telephone port to the port required by the user.

An embodiment of the present invention will be described with reference to the accompanying drawings.

Fig. 1 shows an overall block diagram of an apparatus to which the present invention is installed, and Fig. 2 shows a block diagram showing the configuration of the present invention.

As shown in FIG. 1, the Internet phone matching control device 1 of the present invention is located between the general telephone 100 and the personal computer 200 and connected to the PSTN network 300.

As shown in FIG. 2, the Internet matching control device 1 includes a personal computer port 2, a processor 3, a display unit 4, a subscriber line controller 5, a DTMF tone detector 6, a relay 7, It consists of a general telephone port 8 and a PSTN network port 9.

The computer port 2 uses an RS-232 standard as a port for exchanging data with the personal computer 200 when using an Internet phone.

The processor unit 3 performs initialization and control functions of the subscriber line controller 5, the DTMF tone detector 6, and the display unit 4 constituting the present invention, and the general telephone 100 as necessary. It performs a path control function so as to connect to (200) or to the PSTN network (300).

The processor 3 specifically initializes and controls the subscriber line controller 5 constituting the Internet phone matching controller 1, detects valid DTMF tones from the DTMF tone detector 6, and controls transmission and reception of voice signals. Functions such as receiving key information, transmitting DTMF information to the personal computer 200, transmitting and receiving digitized voice data with the personal computer 200, and the user's choice. A function of controlling the relay 7 for performing a path control function that can connect the telephone 100 to the PSTN subscriber line or the personal computer 200 according to a user's selection, and Internet phone matching. It performs the function of controlling the display unit 4 for the status of the control device 1 and the user's Internet phone usage fee display function.

The display unit 4 calculates the state of the Internet phone matching control device 1 and the time that the user has used the Internet phone, and displays the cumulative conversion of the charge rate of the general landline phone 100 so that the user can operate the phone more economically. Make it available.

The subscriber line controller 5 operates the PSTN subscriber line to operate in the same manner as when the normal phone 100 is connected to the PSTN network 300 when the normal phone 100 operates as an Internet phone and is connected to the personal computer 200. The digital voice signal of the subscriber is also digitized and transmitted to the personal computer 200, and the digital voice signal data from the personal computer 200 is received and converted to analog to be converted into an analog subscriber. It performs the function of transmitting through the line. Therefore, the subscriber line controller 5 is connected to the personal computer 200 when the user wants to use the Internet phone, but the general telephone 100 to operate as if connected to the PSTN network 300 It is in charge of the control function of).

The DTMF tone detector 6 detects whether the user requires the use of an Internet phone when off-hook, and also detects key information of all ordinary telephones used by the user. At the time of Hook, it detects the status of subscriber line to detect whether the user is using internet phone or regular phone, and detects the valid DTMF tone signal and notifies the processor to the processor. do. That is, the DTMF tone detector 6 always operates to detect the next key signal after the user has hooked off-hook, and determines whether to connect to the Internet phone or the PSTN network 300 first. It performs the function of detecting key information for In addition, when used as an Internet phone also performs the function to detect the subsequent phone number and send it to the processor (3).

The general telephone port 8 uses an RJ-11 connector as a port for connecting the general telephone 100.

The PSTN network port 9 is a port for connecting the general telephone 100 to the PSTN network 300 and uses an RJ-11 connector like the general telephone port 8.

The Internet phone matching control device 1 of the present invention is located between the general telephone 100 and the personal computer 200, and when the user intends to use the Internet phone using the general telephone 100, the general telephone ( 100 is connected to the personal computer 200 using the personal computer port (2), and if you want to use the PSTN network 300 is connected to the general telephone 100 to the PSTN port (9). The present invention is basically a basic telephone 100 is connected to the PSTN network 300, if the user wants to use the Internet phone of the predetermined key on the keypad of the general telephone 100 The combination allows you to switch to an Internet phone. When the call through the Internet phone is completed and is on-hook, the PSTN network 300 and the general telephone 100 are connected again.

Therefore, when the user wants to use the Internet phone, the processor 3 detects the remaining signal calling number and transmits the number to the personal computer 200, and when the user wants to use the PSTN network 300, the DTMF. The tone signal detection function is stopped under the control of the processor 3.

The usage flow of the Internet phone matching control device 1 composed of the above-described blocks is as follows. First, when power is applied to the Internet phone matching control device 1, the Internet phone matching control device is initialized to the PSTN mode. That is, the general telephone port 8 is connected to the PSTN network port 9 via the relay 7 under the control of the processor 3. After that, when the user picks up the handset, the user enters a hook-off state, and when the combination of predetermined keys on the keypad of the general telephone 100 is pressed, the processor 3 receives the DTMF tone detector 6. Detects this, and the general telephone port 8 is connected to the personal computer port 2 via the relay 7 and the subscriber line controller 5 under the control of the processor 3 and is set in the Internet phone mode. . At this time, the DTMF tone detector 6 detects the other party's telephone number to make a call under the control of the processor 3 and transmits it to the personal computer through the personal computer port 2. In this way, when a call path through the Internet network is connected, the analog voice signal through the general telephone port 8 is A / D converted at the time of transmission by the subscriber line controller 5 and D / A converted at the time of reception. The digital voice data thus converted is exchanged between the personal computer and the Internet matching control device through the personal computer port 2. In the personal computer, the voice data transmitted and received through the personal computer port 2 is converted into a packet and transmitted and received through the Internet network. When the user completes the call and hangs up the handset, the user enters a hook-on state, which is detected by the subscriber line controller 5 and notified to the processor 3 in an interrupt manner, and the processor 3 matches the Internet phone. Initialize the control device to the PSTN mode and at the same time calculate the user's time using the Internet phone and calculate it according to a predetermined formula and display it on the display.

If you want to use the existing Internet phone requires a separate headphone, microphone, or headset, and also requires a lot of knowledge about personal computers. The present invention allows to use the Internet phone using a conventional telephone in order to improve the shortcomings of the conventional Internet phone, and how to use the Internet phone in the same way as a regular telephone without the knowledge of a personal computer It becomes possible. In addition, the user can use the phone more economically by calculating the user's Internet phone usage time and displaying the cumulative charge in terms of the same rate as when using a general telephone.

Claims (2)

When the regular telephone is operated as an Internet phone and connected to a personal computer, the PSTN subscriber line is controlled to operate in the same way as the ordinary telephone is connected to the PSTN network, and the analog voice signal of the subscriber is digitized and transmitted to the computer. A subscriber line controller (5) which receives digital voice signal data from a computer, converts it into an analog, and transmits the same to subscribers through a subscriber preference; DTMF tone detector that detects key information to determine whether to connect to Internet phone or PSTN network preferentially after detecting off-hook key signal (6) )Wow; Initialize and control the subscriber line controller 5, detect valid DTMF tones from the DTMF tone detector, control the transmission and reception of voice signals, and connect a regular telephone to a PSTN subscriber line or a personal computer according to the user's choice It is equipped with a processor (3) for controlling the path through the control of the relay so that the general phone port, personal computer port, and the PSTN network is connected to the general telephone port to the port that the user requires Internet phone matching control device. The Internet phone matching control device according to claim 1, further comprising an input / output signal processing means for calculating the usage time of the Internet phone and converting the fee into a general phone usage fee and displaying the accumulated usage fee.