JPH02312430A - Electronic exchange - Google Patents

Abstract

PURPOSE:To avoid incoming call control to a specific caller by discriminating whether or not a caller is stored in an incoming call rejection elimination party storage means when a call arrives at a subscriber telephone set where incoming call rejection request is set. CONSTITUTION:An incoming call permitting number memory 2 stores a caller subscriber number not rejecting incoming call upon the receipt of an incoming call rejection request from a subscriber telephone set 5. When a switch circuit 4 gives a call to a telephone set 5 receiving the incoming call rejection service, a processor 1 receives caller number information from an electronic exchange 6 for an opposite telephone set 7 and stores it into the incoming memory 3. Then the caller number and the subscriber number stored in the incoming call permitting number memory are compared. When the coincident number exists, the processor 1 sends the signal of connection request to the switch circuit 4 and the switch circuit 4 applies conventional exchange to connect channels for the telephone sets 5, 7. Thus, only a call from a preset caller is selected and received.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an electronic exchange equipped with an incoming call restriction function, and in particular, the present invention relates to an electronic exchange equipped with an incoming call restriction function. Concerning excluded electronic exchanges.

[Prior Art] In recent years, electronic exchanges employing the stored program program system have come into use that provide a call restriction function that restricts incoming calls to subscriber telephones in response to requests from subscriber telephones.

By the way, in conventional electronic exchanges, when there is a request from a subscriber telephone to restrict incoming calls, all incoming calls to the subscriber telephone are rejected.

[Problems to be Solved] With the conventional electronic switching equipment described above, even if you only wanted calls from a specific party to be received, in the past, all calls that came to your phone would be rejected. There was a problem that even calls for urgent requirements could not be received.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an electronic exchange that allows a specific caller to be exempted from incoming calls when incoming calls are restricted.

[Means for Solving the Problems] In order to achieve the above object, the electronic exchange of the present invention includes a switch means for accommodating a plurality of subscriber telephones, a connection in the switch means, and a request for the subscriber telephones accommodated. and control means for causing the switch means to reject incoming calls to the subscriber telephone set, wherein the control means excludes call rejection from being rejected when the control means receives a call rejection request from the subscriber telephone set. and a call rejection excluded person storage means that accepts the designation of the call rejection, and determines whether or not the calling party is stored in the call rejection excluded person storage means when a call is received on a subscriber telephone set that has set a request for incoming call rejection. However, if the person is a stored person, the incoming call rejection exclusion determination means is configured to invalidate the incoming call rejection and allow the call to arrive.

[Example] Hereinafter, the present invention will be explained in detail based on the drawings.

FIG. 1 is a block diagram of an electronic exchange according to an embodiment of the present invention.

In the figure, reference numeral 1 denotes a processor, which includes an incoming call permission number memory 2 and an incoming call memory 3, and controls the connection of a switch circuit 4. Here, the incoming call permission number memory 2 stores the subscription number of the caller who does not reject the incoming call when receiving a request for incoming call rejection from the subscriber telephone 5. The incoming call memory 3 also temporarily stores the calling party's subscription number.

Reference numeral 6 indicates an electronic exchange of the other party, and 7 indicates a subscriber telephone set housed in the electronic exchange 6. The electronic exchange 4.6 is connected to an ISDN line 10 via I interfaces 8 and 9.

In the above configuration, the processor 1 receives a signal requesting incoming call restriction service from the accommodated telephone 5, and 1. Subsequently, when receiving the subscriber number for incoming call permission, the received subscriber number is stored in the incoming call permission number memory 2.

Note that the incoming call permission number memory 2 can store a plurality of subscriber numbers for one accommodated telephone.

When the switch circuit 4 receives a call to the accommodating telephone 5 receiving the incoming call restriction service, the processor 1 uses the interface 8 to transmit the call from the 15DN line 10 to the 1 interface 9 and the electronic exchange 6 on the other party's side. The calling number information of the telephone 7 on the other party's side is received and stored in the incoming call memory 3. Then, the calling number is compared with the subscriber number stored in the incoming call permission number memory.

As a result, if a match exists, the processor 1 sends a connection request signal to the switch circuit 4, and the switch circuit 4 performs normal switching operations to establish a communication path between the telephones 7 and 5. Connecting.

On the other hand, if a match does not exist, the processor 1 sends a message to the other station's electronic exchange 8 via the interfaces 8 and 9 and the 15DN line 10, saying, Transmission is regulated.”
send a signal.

In other words, when providing incoming call restriction services, the subscriber number that allows incoming calls is stored in the electronic exchange, and when the electronic exchange receives a call, it receives the calling number and stores it as the calling number. The system compares the subscriber numbers for which incoming calls are permitted, and if the same number exists, allows the telephone to accept incoming calls, thereby rejecting incoming calls from any subscriber number other than the set subscriber number.

It should be noted that the present invention is not limited to the above embodiments, but includes various modifications within the scope of the gist. For example, in the above-described embodiment, only incoming calls from outside lines are restricted, but a configuration may also be adopted in which incoming calls are restricted between extension lines.

[Effects of the Invention] As explained above, the present invention is capable of rejecting all incoming calls by storing callers who are allowed to receive calls in an electronic exchange having an incoming call restriction function. Without,
You can select and receive calls only from preset callers.

This has the effect of providing an electronic exchange that allows users to select and receive calls from only the parties they need, and to conduct business very efficiently.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an electronic exchange according to an embodiment of the present invention. 1: Processor 2: Incoming call permission number memory 3: Incoming call memory 4: Switch circuit 5: Subscriber telephone 8: 1 interface

Claims (1)

[Claims] An electronic device comprising switch means for accommodating a plurality of subscriber telephones, and control means for controlling connections in the switch means and for causing the switch means to reject incoming calls to the subscriber telephone in response to a request from the accommodated subscriber telephones. In the exchange, the control means sets a call rejection exclusion storage means for accepting a caller designation from which call rejection is to be excluded when receiving a call rejection request from the subscriber telephone, and a call rejection request. When a subscriber telephone receives a call, it is determined whether or not the calling party is stored in the above-mentioned call rejection excluded person storage means, and if the caller is a stored person, the call rejection is disabled and the call is received. An electronic exchange characterized by comprising a rejection/exclusion determination means.