KR20010019508A - Internet Phone interface adapter and method thereof - Google Patents

Abstract

PURPOSE: A method and a device for connecting an Internet phone are provided to transmit an IP address to an incoming party through a PSTN(Public Switched Telephone Network) if an originator requests Internet phone connection, and to make the incoming party set up connection through an Internet network by using the transmitted IP address, so as to enable Internet phone speech. CONSTITUTION: If an originating party requests the connection of an Internet phone through a PSTN(Public Switched Telephone Network) terminal(201), a controller(222) of an Internet phone connection unit of an originating party temporarily stores a corresponding number in a memory(224) and decides whether an official IP(Internet Protocol) address exists. If an official IP address does not exist, the controller(222) attempts connection in a data network(242) through a data network interface unit(232), to secure an official IP address. The controller(222) telephones to an Internet phone connection unit of an incoming party through a PSTN interface unit(231) and a PSTN(241), to transmit a self IP address. The Internet phone connection unit of the incoming party decides whether an official IP address exists. If an official IP address does not exist, the Internet phone connection unit connects with the data network(242) to secure an official IP address. The Internet phone connection unit of the incoming party sets up Internet phone connection through the data network(242) by using the IP address transmitted from the originating party, to enable Internet phone speech. Internet phone connection unit of the incoming party transmits a self IP address to the Internet phone connection unit of the originating party. If connection with the Internet Phone connection unit is set up, the controller(222) drives the operating system and VoIP(Voice over IP) supporting unit(221) and a video/audio/multimedia data processor(223), to enable Internet phone speech.

Description

Internet phone access device and method thereof

The present invention relates to an apparatus for accessing an Internet phone and a method thereof. In particular, when a caller requests access to an Internet phone, the present invention transmits an IP address to a called party through a public telephone network, so that the called party receives the received IP address. The present invention relates to an internet phone access device and a method for enabling an internet phone call by establishing a connection through the internet network.

Internet telephones use the Internet instead of a dedicated telephone line, which basically saves 50% to 80% of international rates. In addition, while regular telephone subscribers are nearing saturation, the Internet is growing at a rapid rate of more than 300% a year, and soon there will be more Internet users than telephone users.

In addition, Internet telephony can be used for various applications such as video telephony, Internet fax, voice mail, text transmission, and whiteboard. In particular, in the flow of multimedia information communication, all existing communication networks are being integrated into the Internet. The telephone is considered to be very valuable, either commercially or future-oriented.

1 is a schematic diagram of an internet phone system according to the prior art.

As can be seen from the figure, the operation method of the Internet phone is based on the method used by the user (PC 101, 102 vs. PC 101, 102) and PC (101, 102) vs. phone (111, 112). It is classified into the connection of the telephones 111 and 112 to the telephones 111 and 112, and the connection of the telephones 111 and 112 to the PCs 101 and 102 or the web to telephones 111 and 112 is also possible.

If the caller is a PC (101, 102) and the called party is a regular telephone (111, 112), the caller is via the Internet 140 connected to the PC (101, 102), and the Internet telephone gateway (131, 132) of the called party's area. After connection, the call is made by the gateways 131 and 132 connecting the called party through the telephone lines 121 and 122.

On the other hand, one of the requirements that are commonly required in the Internet phone system of the various types of connection is that the IP address for the called party or the calling party is required because the connection is established through the Internet network.

Accordingly, the Internet phone system according to the prior art allows an Internet phone user to access an Internet phone using an IP address received by receiving an IP address by accessing a server managing an IP address according to a phone number. Internet phone users can make Internet phone calls without separately managing IP addresses according to phone numbers by setting them up or through a server that manages IP addresses according to phone numbers in Internet phone connection settings.

In particular, in a terminal (eg, a general telephone, an ISDN telephone, a video conference terminal, etc.) that uses a counterpart's unique identification number to connect to a counterpart, such as a telephone number, an IP address, a telephone number, and a user can be mapped. A dedicated server was always kept on the Internet or in a LAN environment.

However, the conventional technology has a problem that additional expenses are required as the establishment of a server for a separate Internet phone call is required, and the complexity and time delay due to the need to always go through a dedicated server in setting up the connection. There was a problem with this.

Therefore, there has been a demand for the development of a method for allowing an Internet phone user to easily obtain the other party's IP address and to establish a connection using the obtained IP address. Furthermore, a direct connection can be made without going through a dedicated server on the Internet network. There has been a need for the development of an apparatus and method for setting it up.

Therefore, the present invention devised to meet the above demands, the IP address is transmitted to the called party through the public telephone network when the caller requests Internet phone access, the IP address received by the called party Disclosure of Invention It is an object of the present invention to disclose an Internet phone access device and a method for making an internet phone call by setting up a connection through an internet network using an address.

1 is a schematic diagram of an Internet phone system according to the prior art.

2 is a block diagram of an Internet phone access device according to an embodiment of the present invention.

Figure 3 is a schematic diagram of an Internet phone system implemented using the Internet phone access device of the present invention.

4 is a block diagram of an Internet phone access device implemented in an ADSL environment according to another embodiment of the present invention.

5 is a block diagram of an Internet phone access device implemented in a LAN environment according to another embodiment of the present invention.

6 is a block diagram of an Internet phone access device implemented in an ISDN BRI environment according to another embodiment of the present invention.

7 is a block diagram of an Internet phone access device implemented in an ISDN PRI environment according to another embodiment of the present invention.

8 is a flowchart illustrating a method for accessing an internet phone according to an embodiment of the present invention.

9 is a flowchart illustrating a method for connecting to an internet phone according to another embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

201: terminal for public network 202: data network device

211: public terminal terminal interface 212: data network interface unit

221: operating system and VoIP support unit 222: control unit

223: Image, audio, multimedia data processing unit

224 memory 231: public network interface unit

232: data network interface unit

Now, a preferred embodiment of the present invention will be described in detail with reference to FIGS. 2 to 9.

2 is a block diagram of an Internet phone access device according to an embodiment of the present invention, Figure 3 is a schematic diagram of an Internet phone system implemented using the Internet phone access device of the present invention.

As can be seen in Figure 2, the Internet phone connection apparatus according to an embodiment of the present invention, a public network terminal interface 211 and a data network device 202 for providing a connection with the public terminal 201 Data network interface 212 for providing access to the network, a support unit 221 for supporting an operating system, VoIP, and the like for making a call over the Internet, a controller 222, video and audio, A data processor 223 for compressing and restoring multimedia data, a memory 224 for storing data, a public network interface 231 for providing a connection with a public network, and data for providing a connection with a data network The network interface unit 232 is provided.

In this case, the public network terminal 201 means a terminal that attempts to connect using a telephone number and the corresponding identification code, and the data network device 202 is a data network connection such as a computer or a hub. Means possible devices.

Now, the operation of the present invention will be described in detail with reference to FIGS. 2 and 3.

First, when the caller requests the Internet phone connection using the public terminal 201, the control unit 222 of the call originating Internet phone connection device 301 stores the number in the memory 224 for a while. It determines whether there is a stored official IP address (in the future, an official IP is an IP address that is connected to the Internet and can be identified externally).

At this time, if there is no official IP address stored, the controller 222 attempts to connect from the data network 242 through the data network interface unit 232 to secure the official IP address.

Next, the control unit 222 calls the destination Internet phone access device 302 via the public network interface 231 and the public network network 241, and transmits its IP address. For example, the DTMF may be used or the ARS service may be performed at the receiving side.

Thereafter, the called party's Internet phone access device 302, which has received the dial-up request and IP address from the calling party, determines whether there is an official IP address, and if there is no official IP address stored therein, accesses the data network 242. Obtain an official IP address.

Next, the called party's Internet phone connection device 302 establishes an Internet phone connection through the data network 242 using the IP address received from the calling party, thereby enabling Internet phone calls. At this time, the called party's Internet phone access device 302 should transmit its IP address to the calling party's Internet phone access device 301.

The control unit 222 of the caller's Internet phone connection device 301 establishes a connection with the receiver's Internet phone connection device 302, and then the operating system, the VoIP support unit 221, and the video, audio, and multimedia data processing unit 223. To enable Internet phone calls.

On the other hand, if no official IP address is secured in either of the calling Internet phone access device 301 or the called Internet phone access device 302, each of the Internet phone access devices 301 and 302 is a public network network 241. You can make a call by establishing a connection through.

4 is a block diagram of an Internet phone access device implemented in an ADSL environment according to another embodiment of the present invention.

As can be seen in Figure 4, the configuration of the Internet phone connection device implemented in the ADSL environment according to another embodiment of the present invention, POTS interface unit 401, LAN interface unit 402, serial bus interface unit 403 ), An operating system and a VoIP support unit 411, a control unit 412, a memory 413, a data processing unit 414, a splitter 421, and an ADSL modem unit 422.

Here, the splitter 421 performs a function of separating a telephone signal of the ADSL line and upstream / downstream, and the ADSL modem unit 422 converts an analog signal input from the splitter 421 into a digital signal and controls the controller 412. ) Or converts a digital signal input from the controller 412 into an analog signal and outputs the analog signal to the splitter 421. The splitter 421 may be present inside or outside the invention device, depending on the model.

On the other hand, comparing the configuration of the Internet phone access device implemented in the ADSL environment according to another embodiment of the present invention compared to the Internet phone access device of Figure 2 uses the same physical line ADSL line in connection between the public network and the Internet network There is no difference except that the splitter 421 and the ADSL modem unit 422 are included.

In addition, in operation, the high-band signal is separated using the splitter 421 as one ADSL line is connected to the public network and the Internet, and then the separated high-band signal is separated from the ADSL modem unit 422. There is no difference except that it must be converted into a digital signal and processed.

5 is a block diagram of an Internet phone access device implemented in a LAN environment according to another embodiment of the present invention.

As can be seen in Figure 5, the configuration of the Internet phone connection device implemented in a LAN environment according to another embodiment of the present invention, the POTS interface unit 501, memory 502, data processing unit 503, An operating system and VoIP support unit 511, a control unit 512, a public network interface unit 521, and a LAN interface unit 522 are provided.

Here, the apparatus of FIG. 5 differs from the apparatus of FIG. 2 in that a LAN interface unit 522 is provided to enable implementation in a LAN environment.

The operation is the same as that of the apparatus of FIG. However, in a LAN environment, a static IP address (official IP address) can be allocated.

6 is a block diagram of an Internet phone access device implemented in an ISDN BRI environment according to another embodiment of the present invention.

As can be seen in Figure 6, an Internet phone access device implemented in an ISDN BRI environment according to another embodiment of the present invention, POTS interface unit 601, LAN interface unit 602, serial bus interface unit 603, an operating system and a VoIP support unit 611, a control unit 612, two B-channels 621 and 622, and one D-channel 623.

It can be understood that the apparatus of the present invention operates in the same manner as the apparatus of FIG. 2 even when using the ISDN BRI.

That is, once the phone number is entered, the ISDN B channel 622 is used to access the Internet to get an IP address (if any), and the phone number and IP address are transferred to the other side of the B channel 621. Send to establish an IP connection. Thereafter, multimedia data transmission and reception by the Internet is performed.

In addition, a connection to the Internet may be established using 2B channels 621 and 622 using the MLLPPP and BACP protocols.

In addition, an application is also possible in which a plurality of BRI lines are connected and the POTS interface unit 601 is also connected to a plurality of terminals.

7 is a block diagram of an Internet phone access device implemented in an ISDN PRI environment according to another embodiment of the present invention.

As shown in FIG. 7, the Internet phone access apparatus implemented in the ISDN PRI environment according to another embodiment of the present invention includes a POTS interface unit 701, a LAN interface unit 702, and a serial bus interface unit ( 703, memory 704, data processing unit 705, operating system and VoIP support unit 711, control unit 712, multiple B-channels 720a-720n and one D-channel 730 Equipped with.

The ISDN PRI can establish 30 call connections at the same time. Also in this case, as shown in FIG. 6, IP-based data transmission and reception may be performed through IP address determination and telephone connection / IP address transmission for each B channel 620a to 620n.

8 is a flowchart illustrating a method for accessing an internet phone according to an embodiment of the present invention.

First, if there is an Internet phone connection request from the caller in step S10, the Internet phone access device determines whether there is an official IP address in step S11.

As a result of the determination, if there is an official IP address, the IP address is transmitted to the called party through the public network in step S15.

If it is determined that there is no official IP address, in step S12, an attempt is made to connect to the Internet. If the connection attempt is unsuccessful, in step S13, a call is provided through the public network. If the connection is successful, in step S14, an official IP address is obtained. In step S15, the calling party is dialed using the public network, and the IP address secured in step S16 is transferred to the called party through the public network.

Then, the Internet phone access device located at the called party determines whether or not the IP address of the calling party has been received in step S17.

As a result of determination, if not received, the call request is notified to the public network terminal of the called party in step S20. If it is determined in step S21 that the request is accepted and the request is accepted, the telephone connection is established through the public network in step S23 to provide a call. If the request is not accepted, all connections of the calling party to the called party are released in step S22.

As a result of the determination, in the case of reception, the called party checks whether or not the official IP address is held.

As a result of the check, if it is held, in step S25, the Internet phone connection apparatus of the calling party and the Internet phone connection are established through the Internet, and at the same time, the calling party is allowed to release the public network connection, and if not, steps S19 to S24. Attempts to establish a connection to the Internet, and if the connection fails, establishes a telephone connection through the public network, provides a call, and, if the connection is successful, obtains an official IP address. It establishes a phone connection, and at the same time, has the calling party disconnect the public network.

When the internet phone connection is established, the call request is notified to the public network terminal of the called party in step S26, and it is determined whether the request is accepted in step S27.

As a result of the determination, if the request is not accepted, all the connections of the calling party and the called party are released in step S28. If the request is accepted, all the connections after the call of the calling party and the called party are terminated in step S30 by providing an internet phone call. Release it.

9 is a flowchart illustrating a method for accessing an Internet phone according to another embodiment of the present invention, and shows a processing process when the Internet phone access device does not exist on the calling party and only the called party exists.

First, when the caller requests the public network phone connection in step S110, the calling party terminal device dials the called party using the public network in step S111.

Then, the Internet phone access device located at the called party determines whether it has received the calling party's IP address, notifies the call request to the called party's public network terminal at step S112, and if it does not receive it, checks whether it accepts the request at step S113. If it is determined that the request is accepted, a telephone connection is established through the public network in step S115 to provide a call. If the request is not accepted, all connections from the calling party to the called party are released in step S114.

Although the present invention has been described in detail with reference to preferred embodiments, the scope of the present invention is not limited to the specific embodiments, and should be interpreted by the appended claims.

As described above, according to the present invention, the Internet phone can be used without being influenced by a separate system, thereby making it possible to connect at any location.

In addition, according to the present invention, there is no need for a separate subscription to other ISP companies or telecommunication companies, and even in an enterprise, an Internet phone can be dialed by simply connecting to each end by a terminal-to-terminal without installing a server such as an Internet phone gateway. This has the effect of supporting the feature.

Claims (8)

In the Internet phone connection device located between the public network terminal and the public network and data network, A public terminal terminal interface unit for providing a connection with the public network terminal; Support unit for supporting the operating system and VoIP; A memory for storing data; A data processor for compressing and restoring voice data; A public network interface unit for providing a connection with the public network network; A data network interface unit for providing a connection with the data network; And When there is an Internet phone connection request from the public network terminal, it transmits an Internet phone connection request signal and an official IP address to the corresponding called party through the public network, and locates at the called party. And a control unit for establishing an internet phone connection request signal and an official IP address from a calling party and establishing a connection with the corresponding calling party through the internet network using the inputted IP address. The method of claim 1, And a data network device interface unit connected to the control unit for providing a connection with an external data network device. An internet phone access device, which is located between a public network terminal, a public network network and a data network, is connected to the public network network and a data network through an ADSL line. A public terminal terminal interface unit for providing a connection with the public network terminal; Support unit for supporting the operating system and VoIP; A memory for storing data; A data processor for compressing and restoring voice data; A splitter for separating a high band signal transmitted through the ADSL line; An ADSL modem connected to the splitter for modulating a digital signal into an analog signal and demodulating the analog signal into a digital signal; And When located at the calling party, if there is an internet phone connection request from the public network terminal, it transmits the phone call request signal and official IP address to the called party through the low-band signal of the ADSL line, and is located at the called party. Internet phone access request signal and official IP address inputted from the calling party, including the control unit for establishing the connection with the calling party through the internet network using the high-band signal of the ADSL as the input IP address Connecting device. An internet phone access device, which is located between a public network terminal, a public network network and a data network, is connected to the data network through a LAN network. A public terminal terminal interface unit for providing a connection with the public network terminal; Support unit for supporting the operating system and VoIP; A memory for storing data; A data processor for compressing and restoring voice data; A public network interface unit for providing a connection with the public network network; A LAN network interface unit for providing a connection with the LAN network; And If there is an Internet phone connection request from the public network terminal located at the calling party, the Internet phone connection request signal and the official IP address are dialed to the called party through the public network and transmitted to the called party. And a control unit for setting up an Internet phone connection with a calling party through the LAN network using the input IP address when a phone connection request signal and an official IP address are input. An internet phone access device, which is located between a public network terminal and a public network network and a data network, is connected to the public network network and a data network through an ISDN. A public terminal terminal interface unit for providing a connection with the public network terminal; Support unit for supporting the operating system and VoIP; A memory for storing data; A data processor for compressing and restoring voice data; A plurality of B channels for providing connectivity with the public and data networks; And When located at the calling party, when there is an Internet phone connection request from the public network terminal, it sends a phone call to the called party through the public network through the B channel and transmits an Internet phone access request signal and an official IP address. And a control unit for establishing an Internet phone connection with the calling party through the internet network using the B channel as the input IP address when an Internet phone connection request signal and an official IP address are input from the calling party. If there is an Internet phone connection request from the calling party, the calling party's Internet phone access device is configured to determine whether there is an official IP address; A second step of transmitting the IP address to the called party through the public network if there is an official IP address as a result of the determination of the first step; A third step of attempting to connect to the Internet if there is no official IP address as a result of the determination of the first step; A fourth step of transmitting the obtained IP address to the called party through the public network after obtaining the IP address from the Internet if the connection is successful as a result of the attempt to connect to the Internet of the third step; A fifth step of confirming whether or not the Internet phone access device of the called party, which has received the Internet phone access request signal and the IP address through the public network, holds an official IP address; A sixth step of establishing a connection between the caller's Internet phone access device and the Internet phone through the Internet if the user has an official IP address, and causing the caller to disconnect from the public network; As a result of the check in the fifth step, if it does not possess, try to connect to the Internet. If the connection attempt is successful, the official IP address is secured. A seventh step of causing the calling party to disconnect the public network; And And an eighth step of notifying the call request to the called party's public network terminal and releasing the connection after the call is terminated after providing the call as the call request is accepted. The method of claim 6, And a ninth step of providing a call by establishing a telephone connection through a public network if the third attempt to connect to the Internet fails. The method of claim 6, A tenth step of providing a call by establishing a telephone connection through the public network when the call request is notified to the called party's public network terminal as a result of the Internet connection attempt in the seventh step and the call request is received by the called party's public network terminal; Internet phone access method made.