JPH06253354A - Incoming call control selection system - Google Patents

Abstract

PURPOSE:To provide an incoming call control selection system in an ISDN private branch exchange for making possible the reception of an important incoming call from a line wire through an INS network even by a specific extension subscriber. CONSTITUTION:In the ISDN private branch exchange, the out-of-control subscriber's number of a public network subscriber to be out of the subject of incoming call control is set in a storage device. When a call is terminated from the public network subscriber through the INS network to an extension subscriber, whether or not the terminating extension subscriber is under the well-known incoming call control is investigated (step 5) when an originating address is present in the incoming call (step 1,) the above set out-of-control subscriber's number (to be cut off in a conventional case) and the originating address are collated (step AA) when the terminating extension subscriber is under the control, a connection processing is performed (step 4) in the case of coincidence and the reception becomes possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incoming call restriction selection system, and more particularly to an incoming call restriction selection method from an INS network.

[0002]

2. Description of the Related Art In the conventional incoming call control system in an ISDN private branch exchange, incoming calls from the INS network or general public network and incoming calls from the outside line are restricted by providing incoming call control on the extension subscriber side.

[0003]

The above-mentioned conventional incoming call control system rejects all incoming calls to a specific extension subscriber, so that even if the extension subscriber receives an important incoming call from the outside line. However, there is a problem that it does not have a means for connecting.

Therefore, the present invention is to provide an incoming call restriction selection system which enables even a specified extension subscriber to receive an important incoming call from an external line via the INS network.

[0005]

SUMMARY OF THE INVENTION An incoming call restriction selection system of the present invention includes a main switch and a storage device, and an ISDN private branch exchange in a case where at least a part of extension subscribers to be connected have known incoming call restrictions. In this case, an unregulated subscriber number of a public network subscriber who is not subject to incoming call regulation is set in the storage device, and an incoming call is received from the public network subscriber to the extension subscriber via the INS network. In this case, it is analyzed whether or not there is a calling address for this incoming call, and if it is determined that there is no calling address, it is checked whether or not there is a known incoming call restriction for the landline extension subscriber, and connection / disconnection processing is performed. If it is determined that the incoming address exists for the incoming call, it is checked whether or not the incoming call extension subscriber has a known incoming call restriction. If not, the connection process is performed, and if the incoming call restriction is applied, it is set in the storage device. Seigai matches subscriber number and the source address, if they match performs connection processing, is characterized in that for cutting process if they do not match.

Further, in the incoming call restriction selection system of the present invention, the stored content set in the storage device is the subscriber number of the public network subscriber targeted for incoming call restriction or the local station targeted for incoming call restriction. If a number is set and the order of processing or the like is appropriately selected according to the stored contents, the purpose according to the stored contents can be achieved.

[0007]

FIG. 5 is a diagram showing a configuration for implementing the incoming call restriction selecting system of the present invention. 11 is an extension subscriber, 12 is an ISDN switch, 13 is an INS network, and 14 is an INS network subscriber. , The main ISDN switch 12 is a subscriber circuit 1
2, a main switch 16, a central control unit 17, and a storage unit 18.

FIG. 1 is a diagram showing a flowchart of the operation of the central control unit 17 in the first embodiment of the invention. In this system, the non-regulated subscriber number information memory shown in FIG. 6 in the storage device 18 allows the public to permit connection even when there is an external call to a specific extension subscriber who is subject to known incoming call regulation. Set the network subscriber number (non-regulated subscriber number). When a call arrives at the ISDN switch 12 from the INS network 3, the SETUP message is analyzed in step (1). If it is determined that there is no calling address (calling subscriber number), it is checked in step (2) whether or not there is a known incoming call restriction on the extension subscriber, and if it is, disconnection is performed by known means in step 3. If not, the connection process is performed by a known means in step (4). On the other hand, if it is determined in Step 1 that there is a calling address, it is checked in Step (5) whether or not the known incoming call restriction is applied to the extension extension subscriber in the same manner as described above, and if not, it is known in Step (4). The connection processing is performed by means of the above means, and if it is hanging, it is checked in step (AA) whether this calling address matches the non-regulated subscriber number information set in the storage device 18, and if it does not match, the step (AA) is performed. In step 3), the disconnection process is performed by the known means, and if they match, the connection process is performed by the known means in step (4).

By the above processing, even a known publicly known specific extension subscriber can receive an important incoming call from an outside line received via the INS network.

FIG. 2 is a flow chart showing the operation of the central control unit 17 in the second embodiment of the present invention.
An unregulated subscriber number used in the above embodiment is set in the storage device 18, and a regulated subscriber number is set in the regulated subscriber number information memory shown in FIG. When a call arrives at the ISDN switch 12 from the INS network 3, the SETUP message is analyzed in step (1). If it is determined that there is no calling address, it is checked in step (2) whether or not there is a known incoming call restriction for the extension subscriber, and if it is, disconnection processing is performed by known means in step (3), If not, connection processing is performed by a known means in step (4).

If it is determined in step (1) that there is a source address, this source address is stored in the storage device 1 in step (BB).
It is checked whether or not it matches the regulated subscriber number stored in No. 8, and if it matches, disconnection processing is performed by known means in step (3), and if it does not match, it is known to the landline extension subscriber in step (5). Check whether the incoming call restriction is applied, and if not, perform connection processing by a known means in step (4), and if it is applied, step (AA)
Check the unregulated subscriber number information with the calling address, and if they do not match, the disconnecting process is performed by the known means in step (3), and if they match, the connecting process is performed by the known means in step (4). .

By the above processing, an important incoming call from the outside line can be received regardless of whether the calling address corresponds to the regulated subscriber number or a conventionally known specific extension subscriber. It has become possible.

FIG. 3 is a diagram showing a flow chart of the operation of the central control unit 17 in the third embodiment of the present invention.
An unregulated subscriber number used in the first embodiment is set in the storage device 18, and an area code subject to incoming call regulation is set in the regulated area code information memory shown in FIG. When a call arrives at the ISDN switch 12 from the INS network 3, the SETUP message is analyzed in step (1). If it is determined that there is no calling address, it is checked in step (2) whether or not there is a known incoming call restriction for the extension subscriber, and if it is, disconnection processing is performed by known means in step (3), If not, connection processing is performed by a known means in step (4).

If it is determined in step (1) that there is a calling address, this calling address is stored in the storage device 1 in step (CC).
If it matches with the regulated area code set in No. 8, the non-regulated subscriber number information and the calling address are collated in step (AA), and if they do not match, disconnect by known means in step (3). Processing is performed, and if they match, connection processing is performed by known means in step (4). If they do not match in the collation in step (CC), it is checked in step (5) whether the known incoming call restriction is applied to the extension subscriber, and if not, connection processing is performed by known means in step (4). If not, step (A
In A), the unregulated subscriber number information is compared with the calling address, and if they do not match, disconnection processing is performed by known means in step (3), and if they match, connection processing is performed by known means in step (4). I do.

Through the above-described processing, important incoming calls from outside lines can be received even by known publicly known extension subscribers or those that correspond to the regulated area code. It has become possible.

FIG. 4 is a diagram showing a flow chart of the operation of the central control unit 17 in the fourth embodiment of the present invention.
The storage device 18 stores the three types of numbers set in the above-described three embodiments, namely, the non-regulated subscriber number (including the area code), the regulated subscriber number (including the area code), and the regulated city. Set the external station number.

When the ISDN exchange 12 receives a call from the INS network 13, the SETUP message is analyzed in step (1). If there is no calling address, in step (2) it is determined whether or not there is a known incoming call restriction for the landline extension subscriber. If there is restriction, known disconnection processing is performed in step (3), and if there is no restriction, step (4) ), A known cutting process is performed.
If it is determined in step (1) that there is a calling address (here, if there is no area code information in the calling address, it is treated as an incoming call from the city). In step (CC), it is compared with the area code of the incoming call restriction that has already been registered in the restricted area code information memory, and if it is determined that there is a match, this matching calling address is used in step (AA). Then, it compares with the subscriber number which is not registered for incoming call regulation and is already registered in the unregulated subscriber number information memory, and if they match, the connection process using the known means is performed in step (4), and if they do not match. In step (3), a cutting process using a known means is performed. On the other hand, when it is determined in step (CC) that there is no match, in step (BB), the calling address of this mismatch is compared with the subscriber number for restriction that is already registered in the restricted subscriber number information memory, and it is determined that there is a match. In case (3), disconnection processing is performed using a known means, and if it is determined that they do not match, it is determined in step (5) whether the known incoming call restriction is applied to the extension subscriber who is the called party. Determine whether. here,
If the restriction is applied, the connection / disconnection processing is performed in the same manner as in the other embodiments in the step (AA) and subsequent steps, and if the restriction is not applied, the connection processing is performed in the step (4).

With the above processing, even a known publicly known extension subscriber can receive an important incoming call from an outside line in the maximum range.

[0019]

As described above, according to the present invention, by setting the subscriber number of the public network subscriber who is not subject to incoming call regulation in advance, it is possible to provide the extension subscriber who is subject to known incoming call regulation.
When the public network subscriber receives a call through the INS network, the effect is that connection is possible.

Further, by setting the area number to be subjected to incoming call restriction in advance, the incoming call restriction service can be provided in a specific area unit, and by setting the public network subscriber number to be subjected to incoming call restriction in advance. The effect is that the incoming call control service can be provided for each specific public network subscriber unit.

[Brief description of drawings]

FIG. 1 is a diagram showing an operation sequence of a central control device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an operation sequence of a central control device in the second embodiment of the present invention.

FIG. 3 is a diagram showing an operation sequence of a central control device according to a third embodiment of the present invention.

FIG. 4 is a diagram showing an operation sequence of a central control device according to a fourth embodiment of the present invention.

FIG. 5 is a diagram showing configurations of an INS network and an ISDN exchange for implementing the present invention.

FIG. 6 is a diagram showing stored contents of an unregulated subscriber number information memory used in the present invention.

FIG. 7 is a diagram showing stored contents of a regulated subscriber number information memory used in the present invention.

FIG. 8 is a diagram showing stored contents of a regulated area code information memory used in the present invention.

[Explanation of symbols]

 11 extension subscriber 12 ISDN exchange 13 INS network 14 INS network subscriber 15 subscriber circuit 16 main switch 17 central control unit 18 storage device (1) to (5) steps (AA), (BB), (CC) steps

Claims (4)

[Claims] 1. A public network, which includes a main switch and a storage device and is not subject to incoming call regulation in an ISDN private branch exchange when known extension regulation is applied to at least a part of connecting extension subscribers. If the subscriber's non-regulated subscriber number is set in the storage device and an incoming call is made from the public network subscriber to the extension subscriber via the INS network, whether or not the incoming call has an originating address If it is determined that there is no calling address, it is checked whether the incoming call extension subscriber is subject to a known incoming call restriction and connection / disconnection processing is performed. Check whether the extension subscriber is subject to a known incoming call regulation, and if not, perform connection processing, and if it is, collate the unregulated subscriber number set in the storage device with the calling address, Itasu performed lever connection processing, an incoming call prohibition selection method, which comprises carrying out the cutting process if they do not match. 2. A public network, which includes a main switch and a storage device, and which is not subject to incoming call regulation in an ISDN private branch exchange when at least a part of connecting extension subscribers is subject to known incoming call regulation. An unregulated subscriber number of a subscriber and a subscriber number of a public network subscriber to be subject to signal regulation are set in the storage device, and an incoming call is made from the public network subscriber to the extension subscriber via the INS network. If there is an outgoing call address, it is analyzed whether there is an outgoing call address, and if it is determined that there is no outgoing call address, it is checked whether there is a known incoming call restriction to the above-mentioned extension subscribers and connection / disconnection is made. If it is determined that there is a calling address for the incoming call, it is checked whether the calling address matches the regulated subscriber number set in the storage device. If they match, disconnect processing is performed. It is checked whether the extension subscriber has a known incoming call restriction. If not, the connection processing is performed. If it is applied, the unregulated subscriber number set in the storage device is collated with the calling address, and if there is a match, the agreement is confirmed. The incoming call restriction selection method is characterized in that if it does not match, it performs disconnection processing. 3. A public network, which includes a main switch and a storage device and is not subject to incoming call regulation in an ISDN private branch exchange in the case where a known incoming call regulation is applied to at least a part of connecting extension subscribers. When the subscriber's subscriber number and the area code subject to incoming control are stored in the storage device and an incoming call is received from the public network subscriber to the extension subscriber via the INS network, This incoming call is analyzed for whether there is a calling address, and if it is determined that there is no calling address, it is checked whether there is a known incoming call restriction for the above-mentioned extension subscribers, connection / disconnection processing is performed, and the incoming call is called. If it is determined that there is an address, it is checked whether the calling address matches the restricted area code stored in the storage device. Or the examined makes a connection and disconnection process, the origination address of the incoming if they match is checked whether it matches the unregulated subscriber number stored in the storage device,
The incoming call restriction selection method is characterized in that disconnection processing is performed if they do not match, and connection processing is performed if they match. 4. An ISDN private branch exchange in the case where at least a part of extension subscribers to be connected including a main switch and a storage device is subject to publicly known incoming call regulation, the public is not subject to incoming call regulation. The non-regulated subscriber number of the network subscriber, the regulated subscriber number of the public network subscriber subject to the incoming call regulation, and the area code subject to the incoming call regulation are stored in the storage device, and the public network is stored. When an incoming call is received from the subscriber to the extension subscriber through the INS network, it is analyzed whether the incoming call has a calling address. If it is determined that there is no calling address, the call is known to the extension subscriber. It is checked whether the incoming call restriction is applied, and if it is applied, the connection processing is executed if the disconnection processing is not applied, and if it is determined that the incoming call has the calling address, the calling address is stored in the storage device. Check whether it matches the regulated area code, and if it does not match, check whether the calling address matches the regulated subscriber number stored in the storage device, and disconnect if it matches. If it does not match, it is checked whether the incoming call extension subscriber has a known incoming call restriction. If so, the calling address matches the unregulated subscriber number stored in the storage device. If they match, the connection process is performed. If they do not match, the disconnection process is performed. If the calling address matches the restricted area code, the calling address stored in the storage device is out of regulation. The incoming call restriction selection method is characterized by checking whether or not it matches the person's number, and if they match, the connection processing is performed, and if they do not match, the disconnection processing is performed.