KR100720719B1 - Communication System for selective communication of PSTN telephone/ VoIP telephone - Google Patents

Abstract

The present invention relates to a selective call system of a Public Switched Telephone Network (PSTN) telephone / Voice Over IP (VoIP) telephone. The present invention relates to a call using a VoIP telephone service using an existing PSTN telephone service terminal without additional equipment. It is possible.

According to the present invention, a PSTN telephone service terminal for providing a PSTN telephone service, a VoIP telephone service terminal for providing a VoIP telephone service, and a power source provided from the VoIP telephone service terminal and a PSTN telephone service usage command are provided therein. By switching the switch unit, the call control device is configured to control the call by selectively using the PSTN telephone service or the VoIP telephone service, so that it is possible to make a call using a cheap VoIP telephone service more conveniently.

PSTN, VoIP, Calling System

Description

Communication system for selective communication of PSTN telephone / VoIP telephone}

1 is a block diagram illustrating an embodiment of a selective calling system of a PSTN telephone / VoIP telephone of the present invention.

2 is a block diagram illustrating in detail the call control device of FIG.

3 is a block diagram showing details of the VoIP telephone service terminal of FIG.

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

100: PSTN telephone service terminal 110: call control device

120: VoIP telephone service terminal 200, 210, 220, 300: communication unit

230: switch unit 240: control unit

250: data processing unit 260: storage unit

310: storage unit 320: phone number reading unit

330: service processing unit 340: network connection unit

The present invention relates to a selective calling system of a Public Switched Telephone Network (PSTN) telephone / Voice Over IP (VoIP) telephone, and connects a PSTN telephone service terminal and a PSTN telephone line and a VoIP telephone service terminal to a call control device. The present invention relates to a selective calling system of a PSTN telephone / VoIP telephone capable of making a call using a VoIP telephone.

With the development of computer technology and the spread of high-speed network service, the use of VoIP phone service that can provide multimedia services such as voice and video while having low phone call costs is increasing.

The VoIP telephone service converts digital voice data into packet voice data in order to use a communication infrastructure called the Internet instead of the conventional public telephone network. To make it possible.

In order to use the VoIP telephone service, conventionally, a VoIP telephone service has been used by installing a program for VoIP telephone service on a connection means such as a computer and accessing the Internet through a computer.

However, the method of using the computer requires a separate headset (Head Set) or a speaker and a microphone to use the VoIP phone service, or there is an inconvenience to attach a separate VoIP dedicated phone. This put a significant burden on users who are used to using regular phones.

Therefore, an object of the present invention is to provide a selective call system of a PSTN telephone / VoIP telephone that enables the use of an existing PSTN telephone service terminal without a separate additional device when making a call using a VoIP telephone service.

The PSTN telephone / VoIP telephone selective call system of the present invention for achieving the above object is a PSTN telephone service terminal for providing a PSTN telephone service, a VoIP telephone service terminal for providing a VoIP telephone service, the PSTN telephone service terminal and a PSTN telephone A call control device connected to a line and the VoIP telephone service terminal and selectively controlling a PSTN telephone service or a VoIP telephone service according to a power input from a VoIP telephone service terminal or a PSTN telephone service usage command. It is characterized in that the configuration.

In the selective call system of the PSTN telephone / VoIP telephone of the present invention, the call control device includes a first communication unit providing a communication interface with a PSTN telephone service terminal, a second communication unit providing a communication interface with a PSTN telephone line, A third communication unit that provides a communication interface with a VoIP telephone service terminal, and converts analog data inputted from a PSTN telephone service terminal into digital data through the first communication unit, and performs a VoIP phone call through the third communication unit. A data processor for converting digital data input from the service terminal into analog data, a switch unit for selectively connecting the first communication unit with a second communication unit or data processing unit, a PSTN telephone service or a VoIP telephone The call can be made using the service selectively. And a storage unit for controlling switching of the switch unit and a storage unit for storing VoIP driving software.

In the selective calling system of the PSTN telephone / VoIP telephone of the present invention, the VoIP telephone service terminal includes a communication unit for providing a communication interface with a call control device, a network connection unit for providing a communication interface with the Internet, and a PSTN telephone number for VoIP. A storage unit for storing a list matched with a telephone number, a telephone number reading unit for reading a VoIP telephone number corresponding to the called party number data inputted from the communication unit, voice data and the telephone number reading unit inputted from the communication unit And a service processing unit for processing the read-out VoIP telephone number to enable VoIP telephone service using VoIP driving software, and for converting data packets received from the Internet into voice data through the network connection unit. do.

Hereinafter, a selective call system of a PSTN telephone / VoIP telephone of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing an embodiment of a selective call system of a PSTN telephone / VoIP telephone of the present invention. As shown, the system of the present invention includes a PSTN telephone service terminal 100, a call control device 110, and a VoIP telephone service terminal 120.

The PSTN telephone service terminal 100 is a terminal for providing a PSTN telephone service. The PSTN telephone service terminal 100 is connected to a public switched telephone network through a PSTN telephone line, and the public switched telephone network is switched according to DTMF (Dual Tone Multi Frequency) data of a call sent by the PSTN telephone service terminal 100. It works. By the operation of the switch, a call is made between the terminal of the sender and the terminal of the receiver.

The call control device 110 allows a call to be made by selectively using a PSTN telephone service or a VoIP telephone service. FIG. 2 is a detailed block diagram illustrating the call control device of FIG. 1. As illustrated, the call control device includes a plurality of communication units 200, 210, and 220, a switch unit 230, a control unit 240, a data processing unit 250, and a storage unit 260.

The first communication unit 200 and the second communication unit 210 each provide a communication interface between a PSTN telephone service terminal, a PSTN telephone line, and a call control device. That is, data is exchanged between the PSTN telephone service terminal and the call control device through the first communication unit 200, and data is exchanged between the PSTN telephone line and the call control device through the second communication unit 210.

The third communication unit 220 provides a communication interface between the call control device and the VoIP telephone service terminal. That is, the call control device and the VoIP telephone service terminal exchange data with each other through the third communication unit 220.

As a method of forming a communication interface between the communication units 200, 210, and 220, each device, and a line, there are various methods such as connecting using a wire.

The switch unit 230 is switched under the control of the controller 240. The switch unit 230 selectively connects terminal a to terminal b or terminal c under the control of the controller 240. When the terminal a and the terminal b are connected by the switching of the switching unit 230, the PSTN telephone service terminal and the PSTN telephone line are connected through the first communication unit 200 and the second communication unit 210. Using the call is possible.

When the a terminal and the c terminal are connected by the switching of the switch 230, the call can be made using the VoIP telephone service. However, a description of using the VoIP telephone service as the PSTN telephone service terminal will be described later.

When the call control device does not perform any operation, that is, when there is no control of the controller 240, the switch unit 230 connects the terminal a and the terminal b. Due to the connection, a call can be made using a PSTN telephone service.

The controller 240 controls the switch 230 to selectively switch to the b terminal or the c terminal. The controller 240 controls the switch 230 to connect terminal a and terminal c when power is input from the VoIP telephone service terminal. The fact that the call control device receives power from the VoIP telephone service terminal means that the VoIP telephone service terminal is currently operating. This means that a call can be made using a VoIP telephone service. In order to use the VoIP telephony service, the controller 240 separates the connection between the terminal a and the terminal b to enable the PSTN telephone service, and controls the switch unit 230 to connect the terminal a and the terminal c.

In addition, the controller 240 controls the switch unit 230 to connect terminal a and terminal b when a PSTN telephone service use command is input. The switch unit 230 connects the terminal a and the terminal b to enable the call using the PSTN telephone service.

The data processing unit 250 processes data input from the PSTN telephone service terminal through the first communication unit 200. DTMF data of the called party number and the voice data of the caller input from the PSTN telephone service terminal are analog data. When the switch unit 230 switches and terminals a and c are connected, DTMF data of the called party number and voice data of the caller are input to the data processor 250, and the data processor 250 is inputted from the PSTN telephone service terminal. Converts analogue data to digital form. This is because VoIP telephony service communicates with digital data in the form of packets, so that the call is made. Therefore, analog data must be converted into digital form.

In addition, the data processing unit 250 processes data input from the VoIP telephone service terminal through the third communication unit 220. Data input from the VoIP telephone service terminal is in digital form. The data processor 250 converts the digital data input from the VoIP telephone service terminal into analog data. This is because the PSTN telephone service terminal recognizes data in analog form.

The data processor 250 may be configured in plural to prevent a collision in processing data input from the PSTN telephone service terminal and data input from the VoIP telephone service terminal.

The storage unit 260 stores VoIP driving software. The VoIP driving software includes, for example, a Session Initial Protocol (SIP), a G711 Codec, a Real-time Transport Protocol (RTP), and the like. The SIP is a protocol for processing a call, the G711 codec is composed of an audio codec and a video codec, compresses data, divides it into a packet form, and RTP is a protocol for transmitting a packet in real time. The VoIP driving software stored in the storage unit 260 outputs a request of the VoIP telephone service terminal to the VoIP telephone service terminal through the third communication unit 220 under the control of the controller 240.

As described above, when the PSTN telephone service is to be used, the terminal a is connected to the terminal b by switching the switching unit 230, so that the PSTN telephone service terminal and the PSTN telephone line are connected to use the PSTN telephone service. Your call is made.

When the VoIP telephone service is to be used, the terminal a is connected to the terminal c by the switching of the switching unit 230, and the analog data input from the PSTN telephone service terminal is converted into the digital form by the data processing unit 250. . The converted data is output to the VoIP telephone service terminal through the third communication unit 220 to make a call using the VoIP telephone service. The digital data input from the VoIP telephone service terminal is converted into an analog form by the data processing unit 250, and the converted data is output to the PSTN telephone service terminal through the first communication unit 200 to use the VoIP telephone service. The call is made.

The VoIP telephone service terminal is configured to be connected to the Internet, thereby providing VoIP telephone service. 3 is a block diagram illustrating in detail the VoIP telephone service terminal of FIG. As illustrated, the VoIP telephone service terminal includes a fourth communication unit 300, a storage unit 310, a phone number reading unit 320, a service processing unit 330, and a network connection unit 340.

The fourth communication unit 300 provides a communication interface between the call control device and the VoIP telephone service terminal. That is, the fourth communication unit 300 exchanges data between the call control device and the VoIP telephone service terminal. The PSTN telephone service use command is output through the fourth communication unit 300 under the control of the control unit 350 according to the command received through the user interface means 360.

The storage unit 310 stores a list of matching PSTN phone numbers and VoIP phone numbers. Since the PSTN telephone number and the VoIP telephone number have different systems, the VoIP telephone service cannot be used using the PSTN telephone number. Therefore, the storage unit 310 stores a list in which one PSTN telephone number matches one VoIP telephone number, so that the corresponding VoIP telephone number can be selected when the PSTN telephone number is input. The list may be input via the user interface means 360 or may be input from the server in connection with the Internet.

The phone number reading unit 320 reads the VoIP phone number corresponding to the called party number data inputted from the call control device through the fourth communication unit 300. The called party number data input through the fourth communication unit 300 is related to DTMF data used in the PSTN telephone service. The phone number reading unit 320 searches for the VoIP phone number corresponding to the called party number data in the storage unit 310, and reads the corresponding phone number to use the VoIP phone service.

The service processor 330 processes the voice data of the caller input from the call control device through the fourth communication unit 300 and the VoIP phone number read by the phone number reader 320 to enable VoIP phone service.

The service processing unit 330 is provided with VoIP driving software. If the VoIP processing software is not provided in the service processing unit 330, the service processing unit 330 requests and receives the VoIP driving software from the call control device. The service processor 330 processes the call by using the SIP telephone number and converts the voice data of the caller into a packet unit using a G711 codec and RTP to enable communication in real time.

In addition, the service processor 330 converts the data packet input from the Internet through the network connection unit 340 into voice data using the G711 codec and RTP. When the VoIP telephone service terminal is on the receiving side from the call side, the VoIP telephone service terminal receives a data packet from the Internet. The received data packet is combined and converted into one voice data to make a call.

The network connection unit 340 allows the VoIP telephone service terminal to access the Internet. When connected to the Internet through the network connection unit 340, the data processed by the service processing unit 330 is output to the Internet. It also receives data packets from the Internet.

On the other hand, while the present invention has been shown and described with respect to specific preferred embodiments, various modifications and changes of the present invention without departing from the spirit or field of the invention provided by the claims below It can be easily understood by those skilled in the art.

As described above, the present invention does not need to include a headset, a speaker, a microphone, and the like in the VoIP telephone service terminal, and uses an existing PSTN telephone service terminal without the inconvenience of attaching a separate VoIP dedicated telephone. You can make calls using cheap VoIP phone service.

Claims (9)

A PSTN telephone service terminal for providing a PSTN telephone service; A VoIP telephone service terminal for providing VoIP telephone service; And It is connected with the PSTN telephone service terminal, the PSTN telephone line, and the VoIP telephone service terminal, and selectively uses the PSTN telephone service or the VoIP telephone service according to the power input from the VoIP telephone service terminal or the PSTN telephone service usage command. A call control device to control the call; Composed, The call control device A first communication unit providing a communication interface with a PSTN telephone service terminal; A second communication unit providing a communication interface with a PSTN telephone line; A third communication unit providing a communication interface with a VoIP telephone service terminal; Converts analog data inputted from the PSTN telephone service terminal into the digital data through the first communication unit, and converts digital data input from the VoIP telephone service terminal into the analog data from the third communication unit; A data processing unit; A switching unit for switching to selectively connect the first communication unit with a second communication unit or a data processing unit; And A control unit for controlling switching of the switch unit to selectively make a call using a PSTN telephone service or a VoIP telephone service; An optional calling system of a PSTN telephone / VoIP telephone, characterized in that configured. delete The method of claim 1, An optional calling system for a PSTN telephone / VoIP telephone further comprising a storage for storing VoIP driving software. The method according to claim 1 or 3, The analog type data input through the first communication unit is DTMF data of the called party number and voice data of the caller. According to claim 1 or 3, The switch unit; And if there is no control of the controller, connecting the first communication unit and the second communication unit. The method of claim 1 or 3, wherein the control unit; And a switch unit for switching the first communication unit and the data processing unit when the power is input from the VoIP telephone service terminal. The method of claim 1 or 3, wherein the control unit; And a switch unit for switching the first communication unit and the second communication unit when the PSTN telephone service use command is input from the VoIP telephone service terminal. 2. The apparatus of claim 1, wherein the VoIP telephone service terminal; A communication unit providing a communication interface with the call control device; A network connection providing a communication interface with the Internet; A storage unit for storing a list in which the PSTN telephone number matches the VoIP telephone number; A telephone number reading unit for reading a VoIP telephone number corresponding to called party number data received from the communication unit; And The voice data received from the communication unit and the VoIP phone number read out by the phone number reading unit are processed to enable VoIP phone service using VoIP driving software, and the data packet received from the Internet through the network connection unit is converted into voice data. A service processing unit to perform; Optional call system of PSTN telephone / VoIP telephone, characterized in that configured to include. The method of claim 8, And the VoIP driving software is received from a call control device.

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