JPH10164145A - Inter-different kind of network communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent illegal communication connection between different kinds of networks. SOLUTION: The communication terminal IDs 21 of respective terminal equipments 6 to be required at the time of inter-communication equipment communication between different kinds of communication networks 3 and 4 and communication protocol kinds 23 are previously registered in a database registering personal computer 2. When the communication connection request of the communication terminals 6 is received, an inter-different kind of network communication equipment 1 communication-connects the communication terminals 6 concerning the communication connection request to fixed speed communication terminals 7 between the different kinds of networks only when the communication terminal IDs 21 and the communication protocol kinds 23 of the communication terminals 6 coincide with the previously registered communication terminal IDs 21 and communication protocol kinds 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication apparatus between heterogeneous networks for controlling connection between different communication networks.

[0002]

2. Description of the Related Art Conventionally, in such a communication apparatus between heterogeneous networks, a communication terminal arranged between different communication networks, for example, from a communication terminal accommodated in one communication network to a communication terminal accommodated in the other communication network. When a communication connection request is made, the communication connection request is made based on the caller identification ID (caller telephone number) or the callee identification ID (callee telephone number) of the communication terminal involved in the communication connection request. A decision has been made as to whether to allow a communication terminal to make a communication connection between heterogeneous networks.

[0003]

However, according to the above-mentioned conventional communication apparatus between heterogeneous networks, a person other than the contractor of the corresponding communication line improperly installs the communication terminal, and without permission, the caller identification ID (caller ID). Unauthorized communication is performed using the receiver's telephone number) or the receiver's identification ID (receiver's telephone number).

In particular, according to this kind of inter-heterogeneous network communication apparatus, since the information notified from the communication terminal on the transmitting side is only the caller identification ID (caller telephone number), Has determined whether or not to allow a calling-side communication terminal to permit communication connection between different networks based on a caller identification ID (caller telephone number).

However, according to the above conventional communication apparatus between heterogeneous networks, even if the user is not a contractor of the communication line, the device can know the caller identification ID (caller telephone number) and can connect to the communication line (for example, , A personal computer and a modem) can be connected to a communication line, so that even a person other than the contractor can illegally and illegally establish a communication connection between different networks.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a communication apparatus between heterogeneous networks which can surely prevent an illegal communication connection between heterogeneous networks. It is in.

[0007]

According to the present invention, there is provided an inter-heterogeneous network communication apparatus for controlling communication between different communication networks, comprising the steps of:
The inter-heterogeneous network communication device includes a data storage unit in which identification data for identifying a subscriber communication terminal accommodated in one communication network and the other communication network is registered, and a communication connection request from the communication terminal. Data detection means for detecting identification data for identifying the communication terminal; and when the identification data is detected by the data detection means, the identification data of the contractor communication terminal corresponding to the detected identification data is stored in the data storage. Data determination means for determining whether or not the communication protocol is within the means; protocol storage means for registering the communication protocol of each subscriber communication terminal; protocol detection means for detecting the communication protocol of the communication terminal related to the communication connection request; When the communication protocol is detected by the protocol detection means, the communication protocol of the subscriber communication terminal that matches the detected communication protocol is A protocol determining unit for determining whether or not the data is stored in the protocol storage unit; and identification data of a corresponding subscriber communication terminal in the data determining unit. A control means is provided for causing a communication terminal related to the communication connection request to perform communication connection between different types of networks only when the communication terminals match.

[0008] The identification data registered in the data storage means is a communication terminal of a communication terminal accommodated in one or the other communication network.
For example, it corresponds to a caller identification ID (caller telephone number).

The communication protocol registered in the protocol storage means corresponds to a communication modem protocol and a communication modem speed of each communication terminal.

Therefore, according to the inter-network communication apparatus of the present invention, the identification data and the communication protocol type of each communication terminal necessary for communication between the communication terminals between different networks are registered in advance, and the communication of the communication terminal is performed. When a connection request is received, the communication terminal related to this communication connection request communicates between heterogeneous networks only when the identification data and communication protocol type of this communication terminal match the previously registered identification data and communication protocol type. Since the connection is made, by checking the communication partner more strictly than the conventional check at the time of communication connection between heterogeneous networks, an improper communication connection between heterogeneous networks can be reliably prevented.

Further, since the communication connection can be provided without changing the setting and operation of the communication terminal at all, it can be applied to a conventional communication device without any inconvenience.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a heterogeneous network communication apparatus according to the present invention. FIG. 1 is a block diagram showing a schematic configuration inside a heterogeneous network communication system showing an embodiment of the heterogeneous network communication apparatus of the present invention.

Referring to FIG. 1, a heterogeneous network communication system 10 is shown.
Controls one communication network 3 accommodating the subscriber communication terminal 6, the other communication network 4 accommodating the subscriber communication terminal 7, and communication between heterogeneous networks between the communication networks 3 and 4, An inter-heterogeneous network communication device 1 that provides a communication path between the one communication network 3 and the other communication network 4, and a general device for connecting the inter-heterogeneous network communication device 1 and the one communication network 3. And a typical modem 5.

The one communication network 3 and the other communication network 4 are different types of data communication networks, and therefore have different telephone number systems.

The one communication network 3 accommodates a communication terminal 6 as a contractor communication terminal constituted by, for example, a personal computer or a workstation, and this telephone number system is referred to as a communication terminal ID 21.

The other communication network 4 accommodates a fixed-speed communication terminal 7 as a subscriber communication terminal composed of, for example, a personal computer or a work station. .

The database registration personal computer 2 connected to the heterogeneous network communication apparatus 1 includes the communication terminal ID 21, the fixed-speed communication terminal ID 22, and the communication modem protocol 2.
3 and database information such as the communication modem speed 24 are set and updated. FIG. 2 is an explanatory diagram showing a specific example of database information transmitted from the database registration personal computer 2 to the inter-heterogeneous network communication device 1.

In FIG. 2, the database information includes a communication terminal ID 21 for identifying the communication terminal 6 registered from the telephone number system on one communication network 3 and a fixed terminal information registered from the telephone number system on the other communication network 4 side. It has a fixed speed communication terminal ID 22 for identifying the speed communication terminal 7, a communication modem protocol 23 for each communication terminal 6 and the fixed speed communication terminal 7, and a communication modem speed 24 for each communication terminal 6 and the fixed speed communication terminal 7. ing. The communication modem protocol 2 included in the database information
In addition to the conventional security function of only the terminal ID (telephone number), No. 3 can check whether the protocol is valid or not, which leads to improvement in the security of communication terminals communicating with each other.

The data detecting means, the data judging means, the protocol detecting means, the protocol judging means and the control means according to the first aspect correspond to the inter-heterogeneous network communication apparatus 1. The data storage means and the protocol storage means according to claim 1 are provided in the database registration personal computer 2.
Is equivalent to

Next, the operation of the heterogeneous network communication system 10 according to the present embodiment will be described. FIG. 3 shows communication terminal 6 in heterogeneous network communication system 10 according to the present embodiment.
It is a flowchart which shows the processing operation | movement of the communication connection control process regarding the communication connection request | requirement from.

The communication connection control process is that the inter-network communication apparatus 1 performs not only the ID check of the communication terminal 6 but also the security check of the communication partner, including the communication protocol, and based on the check result, the heterogeneous communication. A communication connection is made to a communication terminal between networks.

For example, when the communication terminal 6 attempts to communicate with the fixed-speed communication terminal 7, the communication terminal 6 sends a communication connection request to the inter-heterogeneous network communication device 1 via one communication network 3 and the modem 5.

In FIG. 3, when the heterogeneous network communication apparatus 1 detects an incoming call from the communication terminal 6 (step S11),
The communication terminal ID is detected based on the incoming call from the communication terminal 6 (step S12), and the detected communication terminal ID is detected.
Is included in the database of the database registration personal computer 2 (step S13).

The corresponding communication terminal ID in the database
If the communication terminal ID 21 is present, it is converted from the communication terminal ID 21 to the fixed speed communication terminal ID 22. For example, as shown in FIG.
2 "321" (step S14).

This inter-heterogeneous network communication device 1 has a communication terminal ID
After the conversion from 21 to the fixed-speed communication terminal ID 22, training for checking the communication protocol with the modem 5 on the communication terminal 6 side is executed (step S15).
Based on the training result, it is determined whether this communication protocol is the same as the communication modem protocol 23 registered in the database (step S16).

The communication modem protocol 2 of the communication terminal 6
If 3 is the same, a communication path between the communication terminal 6 and the fixed speed communication terminal 7 is provided, that is, the communication terminal 6 and the fixed speed communication terminal 7 are connected for communication (step S17), and the communication terminal 6 and the fixed speed communication terminal 7 are fixed. It is assumed that communication with the speed communication terminal 7 is in progress (step S18).

If there is no corresponding communication terminal ID 21 in the database at step S13, the communication is refused, that is, the line is disconnected to provide no communication path (step S19).

If the communication modem protocol 23 of the communication terminal 6 is not the same in step S16, the communication is refused, that is, the communication path is not provided by cutting the line (step S20).

When communication is attempted from the communication terminal 6 to the fixed-speed communication terminal 7 as described above, the communication terminal ID2 of each communication terminal 6 required for communication between different types of networks is required.
1 and the communication protocol type 23 are registered in advance, and when a communication connection request of the communication terminal 6 is received, the communication terminal ID and the communication protocol type of the communication terminal 6 are registered with the communication terminal ID 21 and the communication protocol type 23 previously registered. Only when they match, the communication terminal 6 involved in the communication connection request is connected for communication between heterogeneous networks. Therefore, by checking the communication partner more strictly than the conventional check for communication connection between heterogeneous networks. In addition, an unauthorized communication connection between heterogeneous networks can be reliably prevented.

Next, the fixed speed communication terminal 7 becomes the communication terminal 6
The operation when communication is attempted to be performed will be described. FIG. 4 is a flowchart showing a processing operation of a communication connection control process relating to a communication connection request from the fixed speed communication terminal 7 in the heterogeneous network communication system 10 shown in the present embodiment.

For example, when the fixed speed communication terminal 7 attempts to communicate with the communication terminal 6, the communication terminal 6 sends a communication connection request to the inter-heterogeneous network communication device 1 via the other communication network 4.

In FIG. 3, upon detecting an incoming call from the fixed-speed communication terminal 7 (step S21), the inter-heterogeneous network communication device 1 detects a fixed-speed communication terminal ID based on the incoming call from the fixed-speed communication terminal 7. Then, it is determined whether or not the detected fixed speed communication terminal ID is in the database of the personal computer 2 for database registration (step S23).

If there is a corresponding fixed speed communication terminal ID 22 in the database, the fixed speed communication terminal ID
2 is converted to the communication terminal ID 21, and for example, as shown in FIG. 2, the fixed speed communication terminal ID 22 "321" is converted to the communication terminal ID 21 "123" (step S2).
4).

When the communication between heterogeneous networks 1 is converted from the fixed-speed communication terminal ID 22 to the communication terminal ID 21, the training for checking the communication protocol is executed (step S25). Based on the training result, it is determined whether this communication protocol is the same as the communication modem protocol 23 registered in the database (step S26).

If the communication modem protocol 23 of the fixed speed communication terminal 7 is the same, a communication path between the communication terminal 6 and the fixed speed communication terminal 7 is provided, that is, the communication terminal 6 and the fixed speed communication terminal 7 are connected. A communication connection is made (step S27), and the communication terminal 6 and the fixed-speed communication terminal 7 are communicating (step S28).

If there is no corresponding fixed-speed communication terminal ID 22 in the database in step S23, the communication is rejected, that is, the line is disconnected to provide no communication path (step S29).

If the communication modem protocol 23 of the fixed speed communication terminal 7 is not the same in step S26, the communication is rejected, that is, the line is disconnected to provide no communication path (step S30).

When communication is to be performed from the fixed-speed communication terminal 7 to the communication terminal 6 as described above, the fixed-speed communication terminal ID and communication of each fixed-speed communication terminal 7 required for communication between communication terminals between different networks. When the protocol type is registered in advance and the communication connection request of the fixed speed communication terminal 7 is received, the fixed speed communication terminal ID 22 and the fixed speed communication terminal ID Only when the communication protocol type 23 is matched, the fixed-speed communication terminal 7 relating to the communication connection request is connected for communication between different types of networks. By checking the communication partner, it is possible to reliably prevent unauthorized communication connections between heterogeneous networks. .

According to the present embodiment, V22bis, V.22, V22bis and V22bis are stored in the database as the protocol 23 of the communication modem.
However, the present invention is not limited to this, and is not limited to the protocol of the modem.

Further, in the embodiment, the description has been made as the communication between the heterogeneous networks. However, the present invention is not limited to the communication between the heterogeneous networks, and can be applied to a system between homogeneous networks.

[0041]

According to the inter-network communication apparatus of the present invention configured as described above, the identification data and the communication protocol type of each communication terminal required at the time of communication between the communication terminals between different networks are registered in advance. Receiving the communication connection request of the communication terminal, the communication terminal relating to the communication connection request only when the identification data and the communication protocol type of the communication terminal match the previously registered identification data and the communication protocol type. Communication between heterogeneous networks, so by checking the communication partner more rigorously than the conventional check at the time of communication connection between heterogeneous networks, it is possible to reliably prevent unauthorized communication connection between heterogeneous networks Can be.

Further, since the communication connection can be provided without changing the setting and operation of the communication terminal at all, it can be applied to a conventional communication device without any inconvenience.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a schematic configuration inside a heterogeneous network communication system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a specific example of database information stored in a database registration personal computer of the communication system between heterogeneous networks shown in the present embodiment.

FIG. 3 is a flowchart illustrating a processing operation of a communication connection control process related to a communication connection request from a communication terminal in the heterogeneous network communication system according to the present embodiment.

FIG. 4 is a flowchart showing a processing operation of a communication connection control process related to a communication connection request from a fixed speed communication terminal in the heterogeneous network communication system shown in the present embodiment.

[Explanation of symbols]

Reference Signs List 1 heterogeneous network communication device (data detection means, data determination means, protocol detection means, protocol determination means, control means) 2 personal computer for database registration (data storage means, protocol storage means) 3 one communication network 4 the other communication network 6 Communication terminal (contractor communication terminal) 7 Fixed speed communication terminal (contractor communication terminal)

Claims (1)

[Claims] 1. An inter-hetero network communication device for controlling connection between different communication networks, the inter-hetero network communication device comprising: one communication network and a subscriber communication terminal housed in the other communication network. Data storage means for registering identification data for identifying the communication terminal; data detection means for detecting identification data for identifying the communication terminal in response to a communication connection request from the communication terminal; and identification data detected by the data detection means. Then, the data determination means for determining whether or not the identification data of the contractor communication terminal corresponding to the detected identification data is in the data storage means, and the communication protocol of each contractor communication terminal are registered. Protocol storage means, a protocol detection means for detecting a communication protocol of a communication terminal related to the communication connection request, and a communication protocol detected by the protocol detection means. Protocol determination means for determining whether or not a communication protocol of the contractor communication terminal that matches the detected communication protocol is in the protocol storage means; and a corresponding contractor communication terminal in the data determination means. Control means for connecting the communication terminal related to the communication connection request between different types of networks only when the communication data of the contractor communication terminal is matched by the protocol determination means. A communication device between heterogeneous networks, characterized in that: