JPH07107200A - ISDN communication terminal device - Google Patents

Abstract

(57) [Summary] [Purpose] In ISDN, a service is provided in which the receiving side bears the communication charge for a specific calling communication terminal device. [Configuration] Information of a communication terminal device that is a target of a predetermined service is registered. The incoming call from the registered communication terminal device is temporarily rejected. Then, a call setup request is made to this communication terminal device from here.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention is used in digital communications. In particular, the present invention relates to a technique for a communication terminal using ISDN to bear the communication charge of a specific calling party on the called party side regardless of the communication network.

[0002]

2. Description of the Related Art As a conventionally known method for the called party to bear the communication charge of the called party, the address information of the called party is registered in advance in an exchange, and the calling party is charged as the called party. The method of doing so has already been realized and has been put to practical use as a toll-free service.

On the other hand, in the ISDN communication network, when a call arrives at a subscriber, the called party's device is informed of the calling party's subscriber number by a digital signal before answering the call. There is.

[0004]

However, in the toll-free service, since the service start is judged based on the address information of the called side, all incoming calls for the registered address information are charged. It is impossible to pay the call charge to a specific caller. Further, although it is feasible to bear the call charge for a specific caller for each line, it is impossible to bear the call charge for a specific caller for each communication terminal.

The present invention has been made against such a background. When a call arrives at a subscriber, the called party's device receives the digital subscriber number of the calling party before answering the call. By utilizing the configuration of the ISDN communication network notified by a signal, an ISDN that enables a service in which the called party bears a communication charge for a predetermined calling terminal device
An object is to provide a communication terminal device.

[0006]

According to the present invention, there is provided a network interface section for accommodating an ISDN basic interface and / or a primary rate interface, a communication service section including means for executing an ISDN communication service, the network interface section and the network interface section. ISD including a communication management unit that transmits and receives control signals for communication with the communication service unit
N communication terminal device.

[0007] Here, the feature of the present invention is that a means for storing information on a service-calling terminal device which is a service target of which the called party bears the communication fee is provided, and the communication management unit is provided. , Inputting a call setting display from the network interface unit, referring to the storing means, when this call setting display is a call setting display from the serviced calling terminal device, this call setting display is temporarily released, There is provided means for requesting a call back setting to the serviced calling terminal device.

The storing means includes means for storing address information of the serviced calling terminal device and / or means for storing subaddress information of the serviced calling terminal device and flag information corresponding to the subaddress information. It is desirable to prepare.

[0009]

The call setting signal used for ISDN includes address information and sub-address information of the calling terminal device. Therefore, the calling terminal device can be specified on the called side before the call setting stage, that is, before the call is connected. By utilizing this, it is possible to realize a service (hereinafter referred to as a selective non-charge service) in which the receiving side bears the communication charge only to a specific calling terminal device which is predetermined.

When there is a call setting display from the network interface unit, the address information included in the call setting signal is extracted, and it is identified whether or not this is the calling terminal device that is the target of the predetermined non-charged service. To do. When it cannot be identified by the address information, it is identified by the sub-address information and the corresponding flag information.

When it is identified that the calling terminal device is the target device for the selective non-charge service, the call setting display by the calling terminal device is released once. After that, a call setting request is transmitted from the terminal device on the receiving side to the terminal device targeted for this selective non-charge service, and call setting is performed. As a result, the communication fee can be borne by the original called party.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram of an apparatus according to the present invention.

The present invention comprises a network interface section 1 for accommodating an ISDN basic interface and / or a primary rate interface, a communication service section 3 including means for executing an ISDN communication service, a network interface section 1 and a communication service section 3. The ISDN communication terminal device 10 includes a communication management unit 2 that transmits and receives a control signal for communication between them.

Here, a feature of the present invention is that a calling address management table as a means for storing information on a called terminal device to be serviced, which is a target of the selective non-charged service in which the called party bears the communication charge. 4 and a sub-address management table 5 are provided, and the communication management unit 2 uses the network interface unit 1
Call setting display from the calling address management table 4 or the sub address management table 5 is referred to, and when the call setting display is the call setting display from the serviced calling terminal device, the call setting display is temporarily released. , A communication control circuit 2 as means for requesting a call back setup to the serviced calling terminal device
It is in the place of having 0 Standards for ISDN basic interface and primary rate interface are shown in Table 1.

[0015]

[Table 1] The network interface unit 1 accommodates an ISDN line,
The connection / disconnection of the network is controlled by the control signal defined by the DN user / network interface. Communication management unit 2
Manages recording, erasing, and referencing of the originating address in the originating address management table 4, and manages recording, erasing, and referencing of the subaddress in the subaddress management table 5, and controls between the network interface unit 1 and the communication service unit 3. Send and receive signals. The communication service unit 3 executes a communication service using ISDN via the network interface unit 1 under the control of the communication management unit 2.

Next, the originating address management table 4 and the sub-address management table 5 will be described with reference to FIGS. FIG. 2 is a diagram showing the originating address management table 4. FIG. 3 is a diagram showing the sub-address management table 5. Source address management table 4
Stores calling address information 6 of the information elements included in the call setting. The sub-address management table 5 stores sub-address information 7 and flag information 8 corresponding thereto.

Next, the operation of the apparatus according to the present invention will be described with reference to FIGS. FIGS. 4 to 6 are SDL schematic flow charts showing the operation of the communication management unit 2.

[Operations in the case where the calling communication terminal device is identified by the calling address management table 4 as a target of the selective charge-free service will be described with reference to FIGS. 4 and 5. When the communication management unit 2 receives the call setting display from the network interface unit 1 (1), the communication management unit 2 detects calling address information from the information element group included in the call setting, and calls the calling address management table 4. As a result of the reference (2), if the source address information is registered in the source address management table 4 (3), the fact that the call setup is rejected is notified to the network interface unit 1 (6) and released from the network interface unit 1. After receiving the display (7), the network interface unit 1 is notified of the call setting request for the address specified by the source address information (8), and after the network interface unit 1 is notified of the response ( 9) Notify the communication service unit 3 of the incoming call (10). After this, the communication service unit 3 executes communication via the network interface unit 1.

[Operations in the case where it is identified from the sub-address management table 5 that the calling communication terminal device is a target of the selective non-charged service will be described with reference to FIG. ] As a result of the communication management unit 2 referring to the originating address management table 4 (2),
When the calling address information is not registered in the calling address management table 4 (3), the sub address information is detected from the information element group included in the call setting, and the result (4) of referring to the sub address management table 5 corresponds to the sub address. Flag is O
If N (corresponding to 1) (5), the network interface unit 1 is notified of the call setup rejection (6), and after the release indication is received from the network interface unit 1 (7), the network interface unit The call setting request for the address specified by the source address information is sent to the unit 1 (8), and after the notification of the response is received from the network interface unit 1 (9), the call is sent to the communication service unit 3. Notify the signal. After this, the communication service unit 3 executes communication via the network interface unit 1.

[Operations when the calling communication terminal device is not the target of the selective non-charged service will be described with reference to FIG. ] As a result of the communication management unit 2 detecting the sub-address information from the information element group included in the call setting and referring to the sub-address management table 5 (4), if the flag corresponding to the sub-address is OFF (corresponding to 0) (5) notifies the communication service unit 3 of an incoming call (11). After that, the communication service unit 3 executes communication via the network interface unit 1.

[Other operations will be described with reference to FIGS. 4 and 6. When the communication management unit 2 receives the release indication from the network interface unit 1 (12), it notifies the network interface unit 1 of the response (13).

When the communication management unit 2 receives the notification of the response from the network interface unit 1 (14), it notifies the communication service unit 3 of the response (15).

When the communication management unit 2 receives a call setup request from the communication service unit 3 (16), it notifies the network interface unit 1 of the call setup request (17) and receives a response from the network interface unit 1. In case of (18), the communication service unit 3 is notified of the response (19). After that, the communication service unit 3 executes communication via the network interface unit 1.

When the communication management unit 2 receives a response from the communication service unit 3 (27), it notifies the network interface unit 1 of the response (28).

When the communication management unit 2 receives the disconnection request from the communication service unit 3 (29), it notifies the network interface unit 1 of the disconnection request (30).

[Operations in the case where the device itself is the calling communication terminal device that is the target of the non-charged selective service]
Will be described with reference to. The communication management unit 2 sends a call setup request (16) from the communication service unit 3 to the network interface unit 1
If the release indication is received from the network interface section 1 (17) when the notification is sent to the communication interface section (17), the release indication is notified to the communication service section 3 (21), and the communication service section 3 indicates that there is a response. After receiving the notification (22), the network interface unit 1 is notified of the response (23), the call setting display is received from the network interface unit 1 (24), and the network interface unit 1 is notified of the response. Then (25), the communication service unit 3 is notified of the incoming call (26). After that, the communication service unit 3 executes communication via the network interface unit 1.

[0027]

As described above, according to the present invention,
A selective charge-free service for a specific calling terminal device that is determined in advance is possible.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of an apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram showing a source address management table.

FIG. 3 is a diagram showing a sub-address management table.

FIG. 4 is an SDL schematic flowchart showing the operation of the communication management unit.

FIG. 5 is an SDL schematic flowchart showing the operation of the communication management unit.

FIG. 6 is an SDL schematic flowchart showing the operation of the communication management unit.

[Explanation of symbols]

 1 Network Interface 2 Communication Management 3 Communication Service 4 Originating Address Management 5 Sub Address Management 6 Originating Address Information 7 Sub Address Information 8 Flag Information 10 ISDN Communication Terminal 20 Communication Control Circuit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shino Nakano 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (2)

[Claims] 1. A network interface unit accommodating an ISDN basic interface and / or a primary rate interface, a communication service unit including means for executing an ISDN communication service, and communication between the network interface unit and the communication service unit. In the ISDN communication terminal device including a communication management unit that transmits and receives a control signal for communication, there is provided means for storing information regarding a service-call origination terminal device that is a target of a service in which the called party bears a communication charge. The communication management unit inputs the call setting display from the network interface unit, refers to the storing means, and when the call setting display is the call setting display from the serviced calling terminal device, the call setting display is displayed. A means for temporarily releasing the setting display and requesting a call back setting to the serviced calling terminal device is provided. ISDN communication terminal device. 2. The storing means stores the address information of the serviced calling terminal apparatus and / or the subaddress information of the serviced calling terminal apparatus and flag information corresponding to the subaddress information. The ISDN communication terminal device according to claim 1, further comprising means.