JPH0336861A - Incoming call restriction system - Google Patents

Abstract

PURPOSE:To reject an incoming call from other callers by providing a storage section of caller subscriber numbers and registering subscriber numbers accepting the incoming call for each caller. CONSTITUTION:A subscriber using a mobile terminal telephone set 1 stores a caller subscriber number to a storage section 4 to establish the incoming restriction state. When a general subscriber telephone set 10 makes a call to the telephone set 1, the call connects to an automobile telephone exchange 5 via a public network. The exchange 6 receives the call, connects to a base station transmitter-receiver 11 via a trunk 5 to call the telephone set 1. Since the incoming call standby state is brought into the incoming restriction state in the telephone set 1, control section 3 receives the call and requests the exchange 6 for the transmission of the subscriber number of the call. The telephone set 1 collates the returned incoming call with a caller subscriber number stored in the storage section 4 and informs the incoming call to the telephone set 1 when they are coincident. When dissident, it is informed to the caller that no incoming call is allowed to the exchange 5 to reject the arrival of the call.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an incoming call restriction system, and more particularly to an incoming call restriction system in which a subscriber telephone is provided with a verification function.

[Conventional technology]

Conventional incoming call restriction methods allow the originating side to restrict calls to specific destinations in order to prevent incoming calls to subscriber lines for which the subscriber has canceled the contract or abnormal congestion on the receiving side. It was a system in which a switch was equipped with a function to restrict calls, but did not include a function for the called party to register incoming call restrictions in order to refuse to receive calls from unspecified callers.

[Problem to be solved by the invention]

The conventional incoming call restriction method described above did not have a function for the called party to register incoming call restriction in order to refuse to receive calls from unspecified callers, or a similar function. There is a problem in that users are forced to answer incoming calls that they do not want to accept against their will.

The purpose of the present invention is to register a calling subscriber number for each caller that is permitted to receive calls on the subscriber's telephone, in order for the subscriber to reject calls from callers other than a specific caller. By providing this function, it is an object of the present invention to provide an incoming call restriction method that allows the called party to respond only to calls from callers that have been approved by the called party, and to reject calls from other callers.

[Means to solve the problem]

In the incoming call restriction system of the present invention, a subscriber telephone housed in an exchange has a means for storing an originating subscriber number for which incoming calls are not restricted, and when an incoming call is received, the incoming call restriction method informs the exchange of the originating subscriber number of the incoming call. The controller makes a transmission request, receives the originating subscriber number of the incoming call, and compares it with the originating subscriber number for which the incoming call restriction is not performed, which is stored in the storage means. If they match, control is performed to transmit a calling signal transmission request signal. control means for transmitting a disconnection signal if they do not match; This configuration includes receiving means for receiving the calling signal sending request signal and the disconnection signal sent from the machine.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

This embodiment is applied to a car telephone exchange system.

The mobile terminal telephone 1 includes a wireless transceiver 2, a control section 3 that performs all controls, and a storage section 4 that stores the number of a calling subscriber whose incoming calls are not restricted.

The mobile telephone exchange 5 on the base station side connects the mobile terminal telephone f
A signal device 7 that sends and receives signals to and from the trunk 6 connected to the il
and a control device 8 that performs overall control. Further, the car telephone exchange 5 is connected to a base station transmitting/receiving 111 via a trunk 6, and is connected to a general subscriber telephone f via a public network 9.
Connect with ilo.

Next, the operation will be explained.

When implementing incoming call restriction, a subscriber using a mobile terminal phone first stores the calling subscriber number to which incoming calls are permitted in the storage unit 4, and sets the incoming call standby state to the incoming call restricted state. When a caller makes a call from the general subscriber telephone 10 to the mobile terminal telephone fil, the caller connects to the mobile telephone exchange 5 via the public network 9. The car telephone exchange 5 is
This outgoing call is received by the base station transceiver 1 via the trunk 6.
The mobile terminal telephone 1 connects to the mobile terminal telephone 1 and calls the mobile terminal telephone 1. Since the mobile terminal telephone 1 is in the incoming call-restricted state, when an incoming call is received, the control unit 3 receives it via the wireless transceiver 2, Next, a request is made to the car telephone exchange 5 to send the calling subscriber number of this incoming call, and the calling subscriber number of the incoming call that is sent back is received, and the incoming call restriction stored in the storage unit 4 is not performed. It is compared with the originating subscriber number, and if they match, it is controlled to send out a calling signal sending request signal, and if they do not match, it is controlled to send out a disconnection signal. The mobile telephone exchange 5, which has received the calling signal sending request signal, sends a calling signal to the mobile terminal telephone 1 again to notify it of the incoming call. The mobile telephone exchange 5 that received the disconnection signal learns that the mobile terminal telephone 1 is in a call restriction state and that the caller from the general subscriber telephone 10 is a subscriber who is not allowed to receive calls. A signal tone is sent from the signal device 7 to inform the caller from the subscriber telephone 10 that the connection cannot be made. When a subscriber using a mobile terminal telephone cancels the incoming call restriction, the control unit 3 controls to send a paging signal sending request signal to all incoming calls.

〔Effect of the invention〕

As explained above, in order for a subscriber to reject calls from callers other than a specific caller, the subscriber can input the calling subscriber number for each caller that is allowed to receive calls on the subscriber telephone. Providing a registration function has the effect that the called party can respond only to calls from authorized callers and reject calls from other callers.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention. l...Mobile terminal telephone, 2...Radio transceiver, 3...Control unit, 4...Storage unit, 5...Car Telephone exchange, 6... Trunk, 7... Signal device, 8... Control device, 9... Public network, 10... General Subscriber telephone, 11...Base station transceiver.

Claims (1)

[Claims] The subscriber telephone set housed in the exchange has means for storing the originating subscriber number for which incoming calls are not restricted, and when receiving an incoming call, requests the exchange to send out the originating subscriber number of the incoming call. Receives the calling subscriber number and compares it with the calling subscriber number for which incoming call restriction is not performed stored in the storage means. If they match, control is performed to send a calling signal sending request signal; if they do not match, a disconnection signal is sent. the exchange has a sending means for sending the calling subscriber number of the call to the subscriber telephone when a call is received, and a calling signal sending request signal sent from the subscriber telephone. and receiving means for receiving the disconnection signal.