JPH11150606A - Data communication method and equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain the communication service at an equal rate throughout the country by connecting one of terminal equipments to a customer via an NTT circuit with the other terminal equipment connecting directly a specific communication circuit to the customer respectively. SOLUTION: A terminal equipment 10 is connected to a circuit 10a of an NTT network 1 serving as a general telephone circuit, and a terminal equipment 12 of another user of the country is also connected to the network 1 via a circuit 12a. The network 1 and an aster-network 2 are connected to a teleway data on-demand network 3 of a specific communication circuit network via the mutual connecting points (POI) 4 and 5. An NTT circuit is connected to a teleway circuit via the POI 4, a telephone number is converted into a physical number from a logical one at a subscriber exchange part, and the NTT circuit is connected to its terminating destination and then terminates at a customer equipment included in a teleway. At the terminating side, no NTT circuit is used and a general telephone circuit (NTT circuit) is used to connect the equipment 10 to the POI 4. Then an equal rate is set throughout the country.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a so-called data communication technique.

[0002]

2. Description of the Related Art At present, the telephone line is Nippon Telegraph and Telephone Corporation (hereinafter referred to as "NTT" in this specification).
(Hereinafter referred to as “NTT line” in this specification) has the oldest history. In addition, the "general telephone line" often means the "NTT line".

On the other hand, the so-called “Shindenden 3 companies (NCC)” of the present applicant, Daini Denden Co., Ltd. and Japan Telecom Co., Ltd.
We build and maintain our own communication network and develop and provide our own communication services.

[0004] As a result, as a telecommunications network at present, "NTT line", "Teleway line" (hereinafter the same), which is a communication network constructed by the present applicant, Daini Denden Co., Ltd. and Japan Telecom The communication networks constructed by the corporations coexist, and a general user can freely select which communication network to use each time telephone communication is performed. The situation is the same for data communication.

Here, with reference to FIG. 9, a conventional data communication using a teleway line of the present applicant will be described. In FIG. 9, when data is transmitted from the personal computer or telephone or other caller equipment 10 to the server 12, the equipment 10 first connects the NTT line (general telephone line) NTNW and the first interconnection point P-1. To the teleway line TWNW via Then, in the teleway line TWNW, the first transit exchange RC-1 corresponding to the first interconnection point P-1 determines and selects the second transit exchange RC-2 corresponding to the server 12, and connects it. I do. Then, it is connected to the server 12 via the second interconnection point P-2 and the NTT line NTNW. As a result, the data transmitted from the caller equipment 10 is received by the server 12.

[0006] On the other hand, when data is transmitted from the server 12 to the caller equipment 10, the reverse operation is performed. That is, the server 12 sends the NTT line NTNW,
Teleway circuit TWN via second interconnection point P-2
W, and the second transit exchange RC-2 in the teleway line TWNW determines and selects the first transit exchange RC-1 corresponding to the caller equipment 10, and connects the first transit exchange RC-1. And
The first interconnection point P-1 is connected to the caller equipment 10 via the NTT line NTNW, so that the data transmitted from the server 12 is received by the caller equipment 10.

[0007] Here, in the above-described prior art described with reference to FIG. 9, a data communication service is provided in a form in which an NTT line is connected to both ends of a teleway line. It depends on the distance between the equipment and the receiving equipment (or server).

However, in the case of data communication which is often used in business and the like, at present, when the business itself is developed on a nationwide basis, a nationwide uniform fee service is required rather than a distance-dependent fee system. ing. A data communication service that can meet such a request has not been developed at present.

[0009]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned demands, and aims to provide a data communication service that can be provided at a flat rate nationwide. It is an object of the present invention to provide a data communication method that can be applied in combination with a communication network of three companies, and a data communication facility used for the same.

[0010]

According to the data communication method of the present invention, a caller makes a call using a caller equipment connected to an NTT line (general telephone line), and a NTT line (general) is connected via an interconnection point. A step of connecting from a telephone line) to a specific communication line network (for example, a teleway line), identifying a billing method by a relay exchange provided inside the communication line network, and using a logical number selected at the time of calling. A step of connecting to any of the subscriber exchanges provided inside the communication network, and converting the logical number into a physical number by internal equipment including the subscriber exchange connected in the previous step. Determining a billing method from the logical number, connecting to a destination in the communication network based on the physical number, and receiving a call at a called party facility in the communication network. Features and To have. According to the first aspect of the present invention, there is provided a data communication facility for executing such a data communication method, wherein an NTT line (general telephone line) to which a caller facility for performing a call operation by a caller is connected. An interconnection point for connecting to a communication network (for example, a teleway line); and a relay exchange provided in the communication network and connected to an NTT line (general telephone line) by the interconnection point. The transit exchange identifies the billing method and is configured to connect to any of a plurality of subscriber exchanges provided inside the communication network by a logical number selected at the time of calling. It has internal equipment including a subscriber exchange unit to be connected to the transit exchange, and a called equipment provided in the communication network, and the internal equipment stores a logical number selected at the time of calling. Converted to a physical number , A charging method is determined from the logical number, and connection is made to a called party equipment in the communication network based on the physical number. (Corresponding to claim 5) According to the data communication method or data communication equipment of the present invention having the above configuration, the general telephone line, that is, the NTT line, is used only in the area from the caller equipment to the interconnection point. The usage fee of the NTT line from the interconnection point to the user terminal is set to be equal. Further, if the specific communication network, for example, a teleway line constructed and maintained by the present applicant is used, a flat rate can be provided inside the teleway line. Therefore, by installing the destination equipment inside the communication network (for example, the teleway line) and directly connecting the teleway line and the user's destination equipment, a nationwide uniform charge independent of distance can be realized.

In practicing the present invention, an arrangement is made such that a call is received from a callee's equipment in the communication network (for example, a teleway line) via a dedicated line at a callee's equipment outside the communication network. Is also possible (corresponding to claim 2). In that case, the data communication facility may be configured to include a dedicated line for transmitting data received at the called party equipment inside the communication network to the called party equipment outside the communication network. (Corresponding to claim 6) In the present specification, the term "dedicated line" refers to a so-called dedicated line, frame relay, cell relay, telephone line, IS
It is used as a generic term encompassing all of the DN lines.

[0012] With this configuration, the user can access data received at the called party's equipment in the teleway line from a facility outside the teleway line under the nationwide flat rate service.

According to the data communication method of the present invention,
A step in which a caller calls a specific physical number by a caller facility provided in a specific communication network (for example, a teleway line), and a step of switching the physical number by a transit exchange provided in the communication network. Connecting to any one of the other transit exchanges provided inside the communication network based on the physical number and connecting to a predetermined interconnection point by the transit exchange connected in the previous step. Connecting from the interconnection point to a destination via an NTT line (general telephone line) based on the physical number; and receiving a call to a called party equipment connected to the NTT line (general telephone line);
And is characterized by including. (Corresponding to claim 3) The data communication equipment of the present invention for executing such a data communication method is provided in a specific communication network (for example, a teleway line) so that a caller issues a specific physical number. A caller equipment for calling, and a first equipment provided inside the communication network.
And a plurality of second transit exchanges provided inside the communication line network, and a plurality of interconnection points,
The first transit exchange is configured to connect to one of the plurality of second transit exchanges based on the physical number, and the second transit exchange is identified based on the physical number. It is configured to connect to the interconnection point of
The interconnection point is configured to connect to a called party equipment connected to an NTT line (general telephone line) destination based on the physical number. (Corresponding to claim 7) Also in this method or equipment, by directly connecting the equipment of the caller, that is, the user, to the teleway line, for example, data transmitted from the equipment can be transmitted via the predetermined relay exchange in the teleway line. By connecting to a predetermined interconnection point and connecting to the destination via an NTT line (general telephone line) from the interconnection point, data transmission (or data distribution) can be performed at a flat rate nationwide. I can do it.

Here, a step of accessing a caller equipment provided in the communication network (for example, a teleway line) from a caller equipment outside a specific communication network (for example, a teleway line) via a dedicated line; Calling a specific physical number from a caller's equipment provided in the communication network, and using a relay exchange provided inside the communication network to set the inside of the communication network based on the physical number. Connecting to any one of the other transit exchanges provided in, and connecting to a predetermined interconnection point based on the physical number by the transit exchange connected in the previous step, and from the interconnection point to the physical A data communication method including: a step of connecting to a destination via an NTT line (general telephone line) based on a number; and a step of receiving a call to a called party equipment connected to the NTT line (general telephone line). Transmission of data by (or data delivery) is also possible. According to a fourth aspect of the present invention, there is provided a data communication facility according to the present invention for implementing such a method, comprising: a first caller facility outside a specific communication network (for example, a teleway line); A second caller facility provided in a telephone line, for example, and a dedicated line for accessing the second caller facility from the first caller facility. The user equipment is configured to call a specific physical number when making a call, and a first transit exchange provided inside the communication network, and a plurality of first exchanges provided inside the communication network. And a plurality of interconnection points, wherein the first transit exchange is based on the physical number.
And the second transit exchange is configured to connect to a specific interconnection point based on the physical number. Is configured to connect to a called party connected to an NTT line (general telephone line) destination based on the physical number. According to such a method or equipment, a user can access equipment in the teleway line from equipment outside the teleway line to transmit or distribute predetermined data.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an entire configuration of a data-on-demand service, which is a non-voice data communication service for transmitting and receiving data by the data communication method according to the present invention. 1 shows an embodiment in which a dedicated line is not provided.

The caller equipment, for example, the terminal 10 is connected to a line (for example, an ISDN line) 10a of the NTT line network 1, which is a general telephone line, and is used by other users (hereinafter, referred to as end users) nationwide. Terminal 12 is also connected to line 1
It is connected to the NTT network 1 via 2a. The terminal 14, which can also be used as a mobile phone, is connected to another general telephone line (for example, an Aster network) 2 through another line (for example, a PHS line) 14a.

Further, the NTT network 1 and the Astell network 2 are:
Via an interconnection point 4 and an interconnection point 5, respectively, it is connected to a telecommunication network network 3, which is a specific communication network. The data-on-demand network 3
Is connected to a transit exchange 6 in a facility TC (for example, a teleway network center) in the circuit network, and the transit exchange 6 transmits a PRI to a caller (customer) facility 11 provided in the center TC. Line 7 (equivalent to INS 1500),
They are connected by a BRI line 9 (equivalent to INS64) and an analog line 8. The arrow X indicates the direction of the flow of a so-called “call”. Hereinafter, the connection procedure will be described with reference to FIG. First, the sender 10 dials a logical number: 0070-6XX-XXXXXX, which is a telephone number (step S1). This call flows through the NTT line.

Next, N via an interconnection point (POI) 4
Connect from the TT line to the teleway line (step S
2). Next, the trunking exchange 6 identifies the billing method from the telephone number, checks the subscriber in the case of caller billing, and uses the telephone number to switch between the Kashiwa or Osaka subscriber exchanges (built-in or external to the trunking exchange 6). (Attachment) (Step S3).

At the subscriber exchange in the teleway network center (not shown) (constructed in the same way as in FIG. 1) in Kashiwa or Osaka, the telephone number is converted from a logical number to a physical number (ordinary telephone number), The billing method is identified from the number, and connection is made to the destination by the physical number (step S
4). Then, the call arrives at the customer facility (server) in the teleway center (step S5).

In the embodiment shown in FIGS. 1 and 2, the NTT line is not used on the receiving side. The terminal 10 to the POI 4 are connected by a general telephone line (NTT line in the illustrated example), and the usage fee is set to be one rate. Therefore, a low-cost data communication service that is the nation's leading rate becomes possible.

FIG. 3 shows another embodiment of the present invention.
In this embodiment, a customer facility (access server) 11a provided in a teleway network center TC is connected to a server 21 (recipient facility) provided in a customer building B via a dedicated line 20 or the like. . Except for this point, however, the configuration is substantially the same as that of the first embodiment shown in FIGS.

FIG. 4 shows the connection procedure of the embodiment of FIG.
This will be described with reference to FIG. Steps S1-S5 in FIG. 2 are the same as steps S1-S5 in FIG. However, FIG.
In the embodiment of FIG. 4, a step of receiving a call from the access server 11a to the facility (server) in the customer building (step S
The same applies except that 6) has been added.

FIG. 5 shows a data distribution service according to the present invention, which is an entire configuration of equipment used for a non-voice service for distributing data, and a dedicated line is provided between the transmitter and the customer. 2 shows an embodiment in which no is provided.

A terminal 10 (for example, a personal computer), which is a customer facility, is connected to a line (for example, an ISDN line) 10a of the NTT network 1 which is a general telephone line, and the terminal 12 of the end user also has another terminal. NTT network 1 on line 12a
It is connected to the.

The NTT network 1 is connected to an interconnection point (POI).
4 is connected to a telecommunications network 3a, which is a specific communication network. The data distribution service network 3a is the service network (communication circuit network).
The equipment (teleway network center) TC provided in 3a is connected to the first relay exchange 6.
The first transit exchange 6 connects a PRI line 7 (INS 1500) to a caller (customer) facility 11 provided in the center TC.
Equivalent), BRI line 9 (equivalent to INS64) and analog line 8. The arrow Y indicates the direction of the call flow.

The connection procedure will be described below with reference to FIG. First, the destination telephone number (03-XXXX-XXXX) is dialed using the customer facility 11 in the teleway network center TC, which is a facility provided in the teleway data distribution service circuit network 3a (step). S1). Then, the subscriber exchange (not shown) connected to the customer equipment 11 connects to the relay exchange 6 based on the telephone number (step S2).

Further, the relay exchange 6 connects to the interconnection point (POI) 4 based on the telephone number (step S3).

Then, a connection is made to the destination via the NTT line 1 based on the telephone number (step S4), and the call is received at the customer terminal (step S5).

According to the embodiment of FIGS. 5 and 6, the POI 4
Between the customer terminal 10 and the NTT network 1 (line 10a,
12a), the usage fee of the NTT network 1 (lines 10a, 12a) is set so as to be one rate. The other communication lines are teleway lines that can charge at a fixed rate independent of distance. Therefore, in the embodiments shown in FIGS. 5 and 6, communication costs (or line usage fees) according to the distance are unnecessary, and a data communication service (teleway data distribution service) with a nationwide rate of usage becomes possible. .

FIG. 7 shows another embodiment of the present invention. In FIG. 7, the teleway network center T
5 except that a customer facility (access server) 11a provided in C is connected to a server 21 (caller facility) provided in the customer building B via a dedicated line 20 or the like. This is the same as the embodiment of FIG.

FIG. 8 shows the connection procedure of the embodiment of FIG.
This will be described with reference to FIG. Equipment (server; sender equipment) 21 provided in customer building B to customer equipment (access server) 11a in the teleway network center
In FIG. 8, step S0 is added before step S1 in order to access the data via the dedicated line 20. For other steps, the connection procedure in the embodiment shown in FIGS. 5 and 6 and the connection procedure in the embodiment shown in FIGS. 7 and 8 are substantially the same.

According to the embodiment shown in FIGS. 7 and 8, a user who is a sender can transmit data from a transmission facility provided in a company building or the like, as compared with the embodiment shown in FIGS. , Even more convenient.

[0033]

The present invention is configured as described above, and can provide the following excellent effects. (1) In data communication, since one is connected to a customer via an NTT line and the other is directly connected to a specific communication line network and a customer, the distance-dependent fee structure of the NTT line is not applied. . (2) If the customer equipment is directly connected to a specific communication line network via a dedicated line or the like, the customer equipment can be connected to a specific partner, and billing corresponding to the distance is not made. (3) It is possible to set a nationwide flat rate that does not depend on distance. (4) Therefore, the Internet, intranet, competitive games, FAX distribution, communication karaoke distribution, and the like are inexpensive and can contribute to popularization.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart showing the procedure of FIG. 1;

FIG. 3 is an overall configuration diagram showing another embodiment of the present invention.

FIG. 4 is a flowchart showing the procedure of FIG. 3;

FIG. 5 is an overall configuration diagram showing a second embodiment of the present invention.

FIG. 6 is a flowchart showing the procedure of FIG. 5;

FIG. 7 is an overall configuration diagram showing another embodiment of the present invention.

FIG. 8 is a flowchart showing the procedure of FIG. 7;

FIG. 9 is an overall configuration diagram showing an example of a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... NTT line network 2 ... Aster line network 3 ... Teleway data on demand line network 4, 5 ... Interconnection point 6 ... Transit exchange 7 ... PRI line 8 ... Analog line 9 BRI line 10, 12 Terminal 11 Customer equipment (server) 14 PHS telephone TC Teleway network center B Customer building

Claims (8)

[Claims] 1. A caller originating a call using a caller equipment connected to a general telephone line, connecting the general telephone line to a specific communication network via an interconnection point, A step of identifying a billing method by a transit exchange provided inside, and connecting to one of the subscriber exchanges provided inside the communication network by a logical number selected at the time of calling, The logical number is converted into a physical number by internal equipment including the subscriber exchange connected in the previous process, a billing method is determined from the logical number, and a destination in the communication network is determined based on the physical number. A data communication method, comprising the steps of: receiving a call at a callee equipment in the communication network; 2. A callee's equipment in the communication network,
2. The data communication method according to claim 1, further comprising a step of receiving a call at a called party equipment outside the communication network via a dedicated line. 3. A caller calling a specific physical number by a caller equipment provided in a specific communication network;
A step of connecting to any one of the other relay exchanges provided inside the communication network based on the physical number by a relay exchange provided inside the communication network,
A step of connecting to a predetermined interconnection point based on the physical number by the transit exchange connected in the previous step, and connecting from the interconnection point to a destination via a general telephone line based on the physical number; Receiving a call at a called party device connected to a telephone line. 4. Accessing a caller equipment provided in the communication network from a caller equipment outside a specific communication network via a dedicated line, and a caller provided in the communication network. Calling a specific physical number from the user equipment; and, among other relay exchanges provided inside the communication network based on the physical number by a relay exchange provided inside the communication network. Connecting to any one, and connecting to a predetermined interconnection point based on the physical number by the transit exchange connected in the previous step, and receiving a call from the interconnection point via a general telephone line based on the physical number. A data communication method, comprising the steps of: first connecting; and receiving a call at a called party facility connected to a general telephone line. 5. An interconnection point for connecting a general telephone line to which a caller equipment for performing a call operation by a caller is connected with a specific communication line network, and said interconnection point provided in said communication network and being provided in said communication network Has a transit exchange connected to a general telephone line, the transit exchange identifies a billing method,
A subscriber switching unit to be connected to any of a plurality of subscriber exchanges provided inside the communication network by a logical number selected at the time of calling, and to be connected to the transit exchange. And a receiver equipment provided in the communication network, the internal equipment converts a logical number selected at the time of calling into a physical number, and charges from the logical number. A data communication facility configured to determine a scheme and to connect to a called party facility in the communication network based on the physical number. 6. The data communication facility according to claim 5, further comprising a dedicated line for transmitting data arriving at a called party equipment within said communication network to a called party equipment outside said communication network. 7. A caller equipment provided in a specific communication network for a caller to call a specific physical number, a first transit exchange provided in the communication network, and the communication A plurality of second transit exchanges provided inside the network;
A plurality of interconnection points, wherein the first transit exchange is configured to connect to any of the plurality of second transit exchanges based on the physical number, and The transit exchange is configured to connect to a specific interconnection point based on the physical number, and the interconnection point connects to a called party equipment connected to a general telephone line destination based on the physical number. Data communication equipment characterized in that it is configured in the following manner. 8. A first caller equipment outside a particular communication network, a second caller equipment provided within said communication network, and said second caller equipment from said first caller equipment. A dedicated line for accessing a caller equipment, wherein the second caller equipment is configured to call a specific physical number when making a call, and is provided inside the communication network. A first transit exchange, a plurality of second transit exchanges provided inside the communication line network, and a plurality of interconnection points, wherein the first transit exchange is based on the physical number. The second transit exchange is configured to connect to any of the plurality of second transit exchanges, and the second transit exchange is configured to connect to a specific interconnection point based on the physical number. The interconnection point is connected to a general telephone line destination based on the physical number. Data communication equipment characterized by being connected to a called party equipment.