JPH0879371A - Incoming call reject device - Google Patents

Abstract

PURPOSE: To inform incoming call reject by a called party to a caller side with a simple circuit configuration by allowing an ON/OFF circuit to repeat on/off of a hook switch of a communication service equipment at a prescribed time rate CONSTITUTION: An ON/OFF circuit 3 is a timer circuit and switches on hook switches 1a, 1b for nearly 10sec, for example and then switches off the hook switches 1a, 1b for nearly 1sec. When line blocking is required due to periodic maintenance or occurrence of a fault or the like, a communication service equipment 2 allows the ON/OFF circuit 3 to repeat on/off of the hook switches 1a, 1b to reduce the probability of call reception. A busy signal is sent to a party making a call to the communication service equipment 2 when the hook switches 1a, 1b are switched on (hook-off state) and the opportunity of call reception is decreased by a probability of nearly 90%.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a line blocking device most suitable for a communication service providing device for sending a message, information data or the like via a telephone network.

[0002]

2. Description of the Related Art Conventionally, there has been no means on the communication service providing device side for rejecting an incoming call from the telephone network. Even if the terminal is removed from the telephone line to indicate the intention to reject the call, the calling party hears the ringing tone, so the other party (the called party, the communication service providing apparatus side) rejects the call. It was unclear whether or not.

On the other hand, as a communication service providing apparatus, there are cases where it is desired to reject incoming calls from users at the time of regular maintenance of the apparatus or when a failure occurs.

[0004]

When the maintenance of the communication service providing device is interrupted or a failure occurs, if the line of the device is set to the OFF-HOOK state (busy state) in an attempt to reject the incoming call from the user, NTT will Since it is recognized that the telephone set is disconnected from the network, there is a problem that the line is disconnected.
In addition, if there is no response to an incoming call, the caller waits while hearing a ringing tone, so that there is a problem that the called party cannot inform that the incoming call is rejected.

The present invention has been made in view of the above problems, and an object thereof is to notify the calling side that the called side rejects the incoming call with a simple circuit configuration.

[0006]

In order to achieve this object, the call blocking device of the first invention is a communication service device (2) for transmitting a message, information data or the like via a telephone network.
And a hook switch (1a and 1) of the communication service device.
An ON / OFF circuit (3) for controlling ON / OFF of b) is provided, and the ON / OFF circuit is configured to reduce the incoming call probability by repeating the hook switch at a predetermined time ratio.

The incoming call blocking device of the second invention is a communication service device (6) for sending a message, information data, etc. through a telephone network, an automatic transmission device (5) for automatically repeating a transmission operation, and a communication service device. And a changeover switch (4a and 4b) which is provided outside the telephone network and changes the telephone network to a communication service device or an automatic transmission device. The changeover switch changes the telephone network from the communication service device to the automatic transmission device. It is configured to be in a medium state.

The incoming call blocking device of the third invention is arranged between the communication service device (8) for sending a message, information data and the like via the telephone network, and between the telephone network and the communication service device. Is a PB connected by multiple lines
X (7) and a telephone set (X) connected to the PBX, and by calling the telephone set from one of a plurality of lines connecting the communication service apparatus and the PBX,
Configured to put the line in a busy state.

[0009]

In the incoming call blocking device having the above structure, the incoming call probability is reduced or the line is set to the busy state.
Since the caller is notified that the callee has rejected the call, it is possible to notify the caller of the call rejection of the callee with a simple circuit configuration.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a first block diagram of an incoming call blocking device according to the present invention.
It is a block connection diagram showing an example.

In FIG. 1, 1a and 1b are hook switches provided inside the communication service apparatus 2. When the communication service device 2 is a telephone, it turns on when the receiver is picked up. The hook switches 1a and 1b are connected to an external telephone network. Three
Is an ON / OFF circuit, which controls on / off of the hook switches 1a and 1b from outside the communication service apparatus 2. The hook switches 1a and 1b are configured by replacing the existing hook switches 1a and 1b with a changeover switch that can be controlled from the outside, or an external control provided in parallel with the existing hook switches 1a and 1b. It consists of possible changeover switches.

The ON / OFF circuit 3 is a timer circuit, and after the hook switches 1a and 1b are turned on (OFF-FOOK state) for about 10 seconds, the hook switches 1a and 1b are turned on for about 1 second. Turn off 1b (O
N-FOOK state). In the communication service device 2, when the line needs to be blocked due to periodic maintenance or failure, the ON / OFF circuit 3 repeatedly turns on / off the hook switches 1a and 1b to reduce the probability of receiving a call. Hook switch 1a and 1b
Is in the ON state (OFF-FOOK state), a signal is transmitted to the person who calls the communication service device 2,
It is possible to eliminate incoming calls on the line with a probability of about 90%.

FIG. 2 is a second block diagram of a call blocking device according to the present invention.
It is a block connection diagram showing an example.

In FIG. 2, reference numerals 4a and 4b are changeover switches for changing over the connection between the external telephone network and the communication service device 6 or the automatic transmission device 5. The changeover switches 4a and 4b are changed over manually or automatically. The automatic transmission device 5 is an automatic transmission device that constantly repeats the operation of transmitting to a predetermined specific number,
When the changeover switches 4a and 4b are switched to connect the external telephone network to the automatic transmission device 5, the automatic transmission device 5 immediately starts the automatic transmission operation.

When it is necessary to block the line in the communication service device 6 for reasons such as regular maintenance or failure,
The changeover switches 4a and 4b are switched to disconnect the communication service device 6 from the telephone network and connect the telephone network and the automatic transmission device 5. The automatic transmission device 5 constantly repeats the operation of transmitting to a specific number. As a result, the caller of the communication service device 6 is sent a signal indicating that the call is in progress, and the incoming call on the line can be completely eliminated.

FIG. 3 is a third block diagram of an incoming call blocking device according to the present invention.
It is a block connection diagram showing an example.

In FIG. 3, all the lines 8a to 8d of the communication service device 8 are connected to PBX (Private Branch Exchanging).
e) Connect to the telephone network through 7 and use DID from the telephone network
(Direct Inward Dialing) is used to make an incoming call to the lines 8a to 8d of the communication service device 8. DI during normal operation
The telephone network and the communication service apparatus 8 are connected by automatically selecting the lines 8a to 8d by D. When a blockage is required, P from the line requiring the blockage, for example, the line 8a,
The telephone set X connected to the BX 7 is called to bring the line 8a into a busy state. As a result, the line 8a is in a state of rejecting the incoming call.

Even if the busy state described in the first to third embodiments is created, no call charge is applied, so that the user (sender) will not be bothered.

[0020]

As described above, according to the incoming call blocking device of the present invention, it is possible to notify the outgoing call side that the incoming call side has rejected the incoming call by reducing the incoming call probability or putting the line in a busy state. Since the notification is made, it becomes possible to notify the caller of the call rejection on the callee side with a simple circuit configuration.

[Brief description of drawings]

FIG. 1 is a block connection diagram showing a first embodiment of an incoming call blocking device according to the present invention.

FIG. 2 is a block connection diagram showing a second embodiment of the incoming call blocking device according to the present invention.

FIG. 3 is a block connection diagram showing a third embodiment of the incoming call blocking device according to the present invention.

[Explanation of symbols]

 1a, 1b Hook switch 2 Communication service device 3 ON / OFF circuit 4a, 4b Changeover switch 5 Automatic transmission device 6 Communication service device 7 PBX 8 Communication service device 8a-8d Line X Telephone

Claims (3)

[Claims] 1. A communication service device (2) for transmitting a message, information data and the like via a telephone network, and hook switches (1a and 1) of the communication service device.
An ON / OFF circuit (3) for ON / OFF control of b), wherein the ON / OFF circuit repeats the hook switch at a predetermined time ratio to reduce the incoming call probability. . 2. A communication service device (6) for transmitting a message, information data and the like via a telephone network, an automatic transmission device (5) for automatically repeating a transmission operation, and provided outside the communication service device, A switching switch (4a and 4b) for switching the telephone network to the communication service device or the automatic transmission device, wherein the switching switch switches the telephone network from the communication service device to the automatic transmission device, An incoming call blocking device which is placed in a busy state. 3. A communication service device (8) for transmitting a message, information data and the like via a telephone network, and arranged between the telephone network and the communication service device,
A PB connected to the communication service device by a plurality of lines
X (7) and a telephone set (X) connected to the PBX, and calling the telephone set from one of the plurality of lines connecting the communication service apparatus and the PBX. Then, the incoming call blocking device is characterized in that the one line is put into a busy state.