KR200197980Y1 - System for providing the international phone service using bi-directional gateway - Google Patents

Abstract

The present invention relates to an international telephone service system, and more particularly, to an international telephone call system using a two-way gateway that enables international call control using a single two-way gateway.

According to the present invention, by constructing an international telephone call system using only a single two-way gateway and controlling to provide an international telephone call service, a single two-way gateway does not have to install a gateway for each country when constructing an international telephone call system. It is possible to simplify the system configuration by enabling international call service.

Description

System for providing the international phone service using bi-directional gateway}

The present invention relates to an international telephone service system, and more particularly, to an international telephone call system using a two-way gateway that enables international call control using a single two-way gateway.

International telephone call system according to the prior art, as shown in Figure 1, the telephone A, B (100, 160), domestic communication network 110, gateway 1, 2 (120, 140), international communication network 130, foreign communication network 150 )

When telephone A100 makes an international call, it is connected to gateway 1 120 via a domestic communication network 110 including an exchange and transmits a call request signal. Then, the gateway 1 120 outputs an auto-answer voice message for entering the customer number and password to the phone A 100, and the user inputs his registered user number and password.

Next, after the user authentication process, the user inputs the called number according to the description of the voice message of the gateway 1 (120). Then, the gateway 120 is connected to the gateway 2 (140) via the international communication network (dedicated line 130) after analyzing the called number, the destination 120 through the foreign communication network 150 of the destination by the gateway 2 (140) The phone B 160 transmits a dial tone for the call request. When the phone B 160 answers the call request dial tone, the call path is connected to make an international call by the phone A 100 of the calling party and the phone B 160 of the called party.

The customer number and password verification process may be omitted in systems that support CLID (calling number) verification. For example, in the U.S., gateway 1 (120) can automatically check the number of customer's phone (A100) when dialing gateway 1 (120) from a phone or phone (100) of a home or company that is already registered. You will be immediately prompted to enter the destination number.

As described above, the international telephone call system according to the prior art has a problem in that the system configuration becomes complicated because two gateways must be installed.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide an international telephony call system using a two-way gateway capable of executing an international telephony service using a single two-way gateway to solve the above problems.

1 is a block diagram of a conventional international telephone call system according to the prior art.

2 is a block diagram of an international telephony call system using a two-way gateway according to the present invention.

3 is a block diagram of an exchange included in the domestic / foreign communication network shown in FIG.

4 is a configuration diagram of the bidirectional gateway illustrated in FIG. 2.

5 is a flowchart illustrating an international telephony call using a two-way gateway according to the present invention.

In order to achieve the above technical problem, an international telephone call system using a two-way gateway according to the present invention, in an international telephone call system, selects a telephone line corresponding to a telephone number input by a calling telephone and connects the telephone to a called telephone. The exchange includes a domestic communication network which connects the caller's telephone line to an international leased line when a specified telephone number is input, and is connected to the international leased line and undergoes an authentication process by a predetermined process. The caller's telephone line is connected to a caller's telephone line connected to the following foreign telecommunication network of a country corresponding to the number, and the caller's telephone line is connected to a caller's telephone having the called party's number information transmitted from the bidirectional gateway. It characterized in that it comprises a foreign network that includes a switch for connecting the caller to the telephone call with the called party's telephone.

In order to achieve the above technical problem, the control method of an international telephone call system using a two-way gateway according to the present invention is an international telephone call service method, comprising: (a) determining whether a call request signal of a specific number is input to a domestic communication network; (b) connecting a caller's telephone line to a two-way gateway when a call request signal of a specific number is input as a result of the determination of step (a); and (c) a voice for guiding user authentication information input at the two-way gateway. Outputting a message to the caller's telephone; (d) executing an authentication process using a user ID and a password that are input in response to the voice message; and (e) if the subscriber is a registered subscriber as a result of executing the authentication process. (C) outputting a voice message to the caller's telephone for guiding a called party number input; Connecting a line of the calling party's telephone line with a local communication network corresponding to the called party's number in response to a sex message; and (g) generating a call request signal to the telephone number of the called party's telephone through a local communication network corresponding to the called party's number. And (h) in response to said call request signal, connecting a call path between said calling telephone line and said called telephone line.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figure 2, the international telephone call system using the two-way gateway according to the present invention is a telephone A, B (200, 250), domestic communication network 210, international communication network 220, two-way gateway 230, foreign communication network ( 240).

The domestic and foreign communication networks 210 and 240 are each including an exchanger having a circuit configuration as shown in FIG. 3.

In other words, the exchange constituting the domestic and foreign communication network (210, 240) is composed of a line connection unit 310, a network control unit 320, a communication network connection 330, a database 340.

In addition, the bidirectional gateway 230 includes a circuit connection unit 400, a gateway controller 410, an automatic response system (ARS) 420, and a database 430, as illustrated in FIG. 4. It is.

First, the operation of the exchange in the domestic and foreign communication network (210,240) will be described with reference to the configuration diagram of FIG.

The database 340 stores subscriber information, telephone numbers, and line information for each region. In particular, the information on the international telephone number of the region which enables the international telephone call through the interactive gateway 230 is stored together.

The line connection unit 310 outputs or inputs a line to which signals received from a relay line in the telephone A 200 of the caller side or the domestic communication network 210 are transmitted through a line determined according to the switching control of the network controller 320. When the call request signal is the international telephone number is converted into a form suitable for transmission through the international communication network 220 serves to output.

The communication network connection unit 330 serves to connect the domestic communication network 210 and the international communication network 220 when an international telephone number is input.

The network control unit 320 analyzes the telephone number input through the line connection unit 310 and controls the database 340 to select a line of a corresponding region, and in particular, the input telephone number is connected through the two-way gateway 230. It is determined whether it corresponds to an international telephone number of a region that enables international telephone calls, and in this case, the network connection unit 330 is connected to connect the line of the caller's telephone to the bidirectional gateway 230 through the international communication network 220. To control.

Next, the operation of the bidirectional gateway 230 will be described with reference to FIG. 4.

The database 430 stores subscriber ID / PASSWORD, communication network information, and personal information.

The line connection unit 400 serves to connect and switch the input line and the output line in both directions according to the switching control signal.

The automatic answering device (ARS) 420 stores a voice message for guiding user authentication and a call number input, and outputs a voice message for sequentially inputting a user ID and password for user authentication when a call request signal is received. After the user authentication is completed, a voice message for inputting the called number is output. A called number is inputted to output a voice message informing the attempt of a call while attempting a telephone call to the telephone of the called number.

The gateway controller 410 generates an autoresponse control signal for controlling the auto answering means 420 when a call request signal is input, and the user ID and PASSWORD input in response to the guide voice message are stored in the database 430. A switching control for executing a process of an authentication process for determining whether a call is registered in the network and analyzing an incoming call number in response to a guide voice message to connect an input line of a caller's telephone to a communication network in a region corresponding to the called number It generates a signal, transmits the called number information to the connected communication network, and controls the two-way gateway 230 collectively.

In the present invention, the bidirectional gateway 230 may select and connect a line of the foreign communication network 240 according to the call request signal of the incoming number input through the international communication network 220, and also through the foreign communication network 240. In accordance with the incoming call request signal of the incoming number is a two-way gateway operation that can select and connect the line of the domestic communication network 210 through the international communication network (dedicated line, 220).

In detail, the international call process by the international telephone call system using the bidirectional gateway of FIG. 2 will be described with reference to the flowchart of FIG. 5.

When an international telephone call is attempted using the telephone A200 as the calling party telephone, first, the telephone connection unit 310 of the corresponding exchange of the domestic communication network 210 is connected, and the network control unit 320 receives the international telephone call received from the calling party telephone. The database 340 determines whether the number corresponds to the international telephone number of the region via the bidirectional gateway 230 (step 501).

As a result of the determination in step 501, if the received international phone number corresponds to the international phone number of the area via the bidirectional gateway 230, the network controller 320 controls the communication network connection unit 330 to control the phone A 200. The circuit is connected to the bidirectional gateway 230 through the international communication network 220 constructed as a dedicated line. Then, the gateway control unit 410 of the two-way gateway 230 controls the automatic answering unit (ARS) 420 to sequentially input the user information for user authentication and the voice message for inputting the called party number. (Step 502).

In response to the voice message received from the bidirectional gateway 230, the caller inputs ID and PASSWORD, which are user information, in the phone A 200 to receive user authentication, and sequentially inputs a called number (steps 503 and 504).

If the two-way gateway 230 supports the calling number verification function, the above-mentioned authentication process can be omitted, so that the automatic answering means 420 does not output a message for inputting ID and PASSWORD, and immediately returns the called number. Outputs a voice message for input.

When the called number is input, the two-way gateway 230 analyzes the called number and connects to the telephone B 250 of the called party having the called number through a foreign communication network 240 which is a local communication network corresponding to the called number. Generate a call request signal for operation (step 505).

If the called party lifts the handset of the telephone B 250 in response to the call request signal and turns off the hook (step 506), the call paths of the calling telephone A 200 and the called telephone B 250 are connected to enable the call. (Step 507).

By this operation, it is possible to make international telephone call between two countries by using one gateway, and when making a call from a country where gateway is not installed, it is directly connected to the international leased line without ID verification. It is possible to provide international telephone service to several countries at the same time by the configured communication system.

As described above, according to the present invention, by constructing an international telephony system using only a single two-way gateway and controlling to provide an international telephony service, a single gateway is not provided for each country when constructing an international telephony system. The bidirectional gateway enables the international call service to simplify the system configuration.

Claims (3)

In an international telephone call system, A switch that selects a telephone line corresponding to a telephone number input by a calling telephone and connects it to a called telephone, wherein the switching network connects the calling telephone telephone line to an international leased line when a specified telephone number is input; ; A bidirectional gateway which is connected to the international leased line and, after undergoing an authentication process by a predetermined process, connects the calling party telephone line to the following foreign telecommunication network of a country corresponding to the input destination number and transmits called party number information; And And a foreign communication network including an exchanger for connecting the calling party telephone line to the called party telephone having the called party number information transmitted from the bidirectional gateway to connect the call path between the calling party telephone and the called party telephone. International telephony call system using gateway. The method of claim 1, wherein the bidirectional gateway is A database storing subscriber ID / PASSWORD, communication network information and personal information; A line connection unit for switching and connecting an input line and an output line in two directions according to a switching control signal; Automatic answering means for storing a voice message for guiding user authentication and incoming call number and outputting the voice message in response to an auto answer control signal; And When a call request signal is input, an automatic response control signal for controlling the automatic answering means is generated, and an authentication process for determining whether a user ID and a password is input in response to the voice message is registered in the database. Executing a process, analyzing the called party number input in response to the voice message, generating a switching control signal for connecting the communication network with the input line corresponding to the called number, and connecting the called party number information to the connected communication network; International telephone call system using a two-way gateway, characterized in that it comprises a gateway control unit for transmitting. The system of claim 1 or 2, wherein the two-way gateway omits the authentication process when the two-way gateway supports the caller ID verification function.