JPS5838020B2 - Call rejection method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a system for rejecting incoming calls from a particular subscriber by specifying a particular subscriber's designation in a switched network, particularly in a switched network for facsimile communication.

In conventional communications networks, information regarding the calling subscriber was completely unknown to the receiving side.

However, with various new communication services, there is an increasing need to transfer the calling subscriber's subscription number from the calling side to the called side.

In particular, in the facsimile store-and-forward system, in which facsimile signals are temporarily stored within a communication network and then transferred from a facsimile transmitter to a facsimile receiver, the facsimile signal is stored without checking whether the recipient is ready to receive the facsimile signal. A facsimile signal from the sender's facsimile transmitter will be received within the communication network.

Therefore, when dialing information is received, the originating subscriber number is translated and retrieved from the subscriber line storage location of the subscriber line exchange, and based on this, it is determined whether the calling and receiving subscribers are facsimile terminal users or not. A system is adopted in which the communication network starts receiving signals from the facsimile transmitter after making an inquiry using a pre-set subscriber file, such as whether the subscriber has a facsimile device or not.

In such a facsimile storage and switching network, since the switching network itself knows the calling subscriber number, it is easy to add the subscriber number to the facsimile message and output it to the called subscriber.

Therefore, even if undesirable facsimile messages such as so-called "prank calls" are frequently received, it is easy to know the calling subscriber number.

This invention was made to prepare for the occurrence of the above-mentioned undesirable situation, and it is possible for the receiving party to refuse the call to the subscriber who made the above-mentioned "prank call" message. The purpose is to provide a new method for rejecting calls.

Next, the present invention will be explained in detail with reference to the drawings.

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

In FIG. 1, 101 is a push-button telephone, 102 is a facsimile terminal, and 103 is a switching device, all of which are equipment on the subscriber A side.

104 is a subscriber line, 105 is a subscriber line exchange, 106 is an ID detector, 107 is a trunk, 108 is a facsimile processing device, 109 is a subscriber file, 110 is a registration file, 111 is a message file, and 112 is a digital line. , 113 is a facsimile processing device, 114 is a subscriber file, 115 is a registration file, 116 is a message file, 117 is a trunk, 118 is an ID detector, 119 is a subscriber line exchange, 123 is an exchange, and the following are B addon. 120 is a switching device, 121 is a facsimile terminal, and 122 is a push-button telephone.

The embodiment shown in FIG. 1 is an embodiment intended for a facsimile storage and forwarding network.

For a normal call, subscriber A first calls pushbutton telephone 1.
When the special number 01 is dialed, the subscriber line exchange 105 is connected to the facsimile processing device 108 through a special number exchange (not shown) or the like.

The facsimile processing device 108 then sends out a special dial tone to instruct subscriber A to dial the subscriber number of the party to whom he wishes to send the facsimile message.

At the same time, the subscriber exchange 105 is provided with ■D detection device 10.
6 and the trunk 107 to send the accommodation location information of the calling subscriber A (or the subscriber number translated from this information).

The facsimile processing device 108 uses the calling subscriber number obtained in this way as a reference to create its own subscriber file 10.
9, the type of facsimile terminal of the calling subscriber is checked, and the calling subscriber number and called subscriber number are sent to the facsimile processing device 113 on the receiving side via the digital line 1.
12 (or common line signal path for exchange), where the facsimile processing device 113 on the called side refers to the subscriber file 114 to determine whether the called subscriber owns a facsimile terminal or not. Check whether you own the type of terminal device.

At the same time, it is checked whether a call rejection flag is set in the subscriber file, and if so, the registration file 115 is referred to.

The registration file 115 records request items of subscribers who request additional services such as rejection of incoming calls within the area.

Here, the facsimile processing device 113 checks whether the calling subscriber number of the current call corresponds to the call rejection party number registered in the registration file 115, and if so, notifies the party to that effect. The facsimile processing device 108 on the originating side is contacted.

If this is not the case, only the information as to whether the receiving subscriber B side can receive facsimile messages is transferred to the facsimile processing device 108 on the calling side.

Regardless of whether or not the processing device 108 is rejecting the incoming call, if there is a response from the processing device 113, the processing device 108 prepares to receive the message.

When the preparation for receiving the message is completed in this way, the facsimile processing device 108 sends out a telephone tone or a special tone and sends the message to the calling subscriber A through the subscriber line 104 by operating the switch 103 and the facsimile terminal 102. let

This message is temporarily stored in the message file 111 after being subjected to appropriate processing (for example, redundancy suppression processing).

The temporarily stored message is transferred to the facsimile processing device 113 on the receiving side through the digital line 112. At this time, the digital line 112 may be a switched line through the exchange 123.

The message transferred in this manner is entered into the message file 116.

Therefore, the facsimile processing device 113
7. Call the incoming subscriber B through the subscriber line exchange 119 and push-button telephone 122, switch the switch 120 to connect the facsimile terminal 121, and transfer the message temporarily stored in the message file 116 to the facsimile processing device. At step 113, the facsimile signal is restored to a facsimile signal and then output to subscriber B.

The ID detection device 118 is used when the subscriber line exchange 119 operates on the calling side.

Although the outline of the present invention has been described above, aspects of the operational procedure when implementing the present invention will be described in more detail below.

FIG. 2 shows an example in which a calling number and a called number are added to an incoming message.

In the previous explanation, the receiving side facsimile processing device 1
In Section 13, it was stated that the message addressed to subscriber B is restored to a facsimile signal before being output. During the restoration, for example, a caller number display is added to the top of the message as shown in Figure 2. In the example of FIG. 2, the case where the called number is also entered is shown).

By doing this, the receiving subscriber B can always know from which calling number the subscriber is receiving the call.

If subscriber B does not want to receive a facsimile call from a certain calling subscriber (for example, subscriber A), subscriber B registers the calling number to reject calls.

Register to reject calls as follows.

First, the special number IXY for that purpose (X, Y are the corresponding numbers)
When dialing , the subscriber is connected to the subscriber B facsimile processing device 113 via a special number switch (not shown).

Therefore, when the facsimile processing device 113 sends out a special tone different from the normal dial tone, subscriber B receives a call rejection number (in this example, subscriber A's number).
Dial in the following order: the separation number, then your own number (in this example, subscriber B's number).

Then, the facsimile processing device 113 compares the calling subscriber identification information received from the ID detection device 118 with the dialed subscriber number (subscriber B's number), and registers to reject the call.

That is, first, a flag is set in the call rejection field for subscriber B in the subscriber file 114, and the call rejection number (subscriber A's number) is registered in the registration file 115 so that it can be searched by subscriber B's number. .

The call rejection number once registered in this manner remains registered until subscriber B cancels the registration at the next opportunity.

In this way, by using the subscriber file and the registration file, it is possible to register the intention not to receive calls from a specific calling subscriber number, which is considered difficult in conventional public communication networks. It has now become possible to provide new services that previously had been previously available.

In the above embodiments, the calling number is always added to the message by the facsimile processing device of the originating network, but the present invention is also applicable to a system in which the calling number is not added. be able to.

In such a system where a calling number is not added, the subscriber side specifically requests the central office for auditing, and has the calling number constantly audited and recorded for incoming calls during a certain period of time. This is because it is possible to detect subscribers who make ``prank call'' calls.

In addition, in the explanation of the embodiment, the range in which incoming calls are rejected is the range in which subscriber numbers are listed and registered, but in addition, for example,
It is also possible to register the calling area by area code only or by a combination of area code and city code.

By doing this, all calls from a certain area can be rejected, which is extremely effective in preventing the reception of "prank call" messages.

Further, in the description of the embodiment, a subscriber file and a registration file are used separately, but they can be combined to store all information in one file.

Furthermore, these files may be in a format that is not dependent on the facsimile processing device, but is dependent on the electronic exchange.

Although the embodiment has been described with reference to a facsimile store-and-forward network, the present invention can be applied to a telephone rather than a facsimile as long as it has a function to detect the calling subscriber number and can check the subscriber file. Applicable.

As mentioned above, this invention has great effects because it has made it possible to provide new services that were considered difficult in conventional public communication networks.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 shows an example in which a calling number and a called number are added to an incoming message. In the figure, 101 is a push-button telephone, 102 is a facsimile terminal, 103 is a switch, 104 is a subscriber line,
105 is a subscriber line exchange, 106 is an ID detector, 107
is a trunk, 108 is a facsimile processing device, 109
110 is a subscriber file, 110 is a registration file, 111 is a message file, 112 is a digital line, 113 is a facsimile processing device, 114 is a subscriber file, 115 is a registration file, 116 is a message file, 117 is a trunk, and 118 is an ID Detector, 119, subscriber line exchange, 1
20 is a switching device, 121 is a facsimile terminal, 122 is a push-button telephone, and 123 is an exchange.

Claims (1)

[Claims] 1. In a storage type communication network consisting of a calling side system and a receiving side system, the calling side system includes a calling subscriber information detection means and the detected calling subscriber information and the other party's called subscriber information to the called side system. It is equipped with a means for transferring communication information through a channel different from the communication information transfer route, and the receiving side system has a method for determining whether or not the transferred calling subscriber information corresponds to incoming call rejection in relation to the receiving subscriber information. and a means for transmitting the verification results to the calling system, and the calling system further receives and judges the verification results and receives the communication information from the calling subscriber even if the call is being rejected. An incoming call rejection method in a storage type communication network, characterized by comprising means for receiving and holding a call.