JPH01300656A - Telephone set - Google Patents

Abstract

PURPOSE:To allow the telephone set to cope with a mischievous telephone call at night or the like by providing a function selecting a caller in the case of receiving a call. CONSTITUTION:A memory 5 able to register an opposite telephone number enabling to accept a call and a switch 4 switching the internal circuit so as to access the memory 5 in the case of the arrival of a call are provided. Then an incoming call control section 3 applies the control in such a way that a sent caller telephone number and the content of the memory 5 are compared in the arrival of a call when the memory 5 is set while its content is read out and a bell 6 is rung when they are coincident. Thus, caller numbers able to be accepted by the telephone set are limited. Then a mischievous call is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a telephone set that allows the user to select a calling party and decide whether or not to receive a call.

(Prior Art) Conventional telephones did not have a function to select a calling party when receiving a call.

(Problem to be solved by the invention) As a result, the telephone starts ringing even when there is an incoming call from a person who does not want to make a call! 11% There was no way to deal with prank calls, such as at night.

The object of the present invention is to overcome the above-mentioned drawbacks.

To provide a telephone set which allows the user to select the calling party when receiving a call.

(Means for Solving the Problems) In order to achieve the above object, the telephone according to the present invention includes a memory that can store the telephone number of the other party by an external operation, a switch that enables or disables the memory, and a system that allows calls to be made through the telephone line. When receiving the telephone number of the calling party, if the memory is enabled by the switch, the contents of the memory are sequentially read out, compared with the telephone number of the calling party, and if they match, the call is accepted as a friend, and if they do not match, the call is accepted. The apparatus includes an incoming call control unit that controls incoming calls at all times when incoming calls are disabled and the memory is disabled.

(Example) Hereinafter, the present invention will be explained in more detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a telephone according to the present invention.

The line network 2 is configured to send out the telephone number of one caller when there is an N bias toward the telephone set 1.

The telephone 1 receives the caller's T-talk number through the incoming call control unit 3,
When switch 4 is on, memory 5 is accessed and its contents are read.

Switch 4 is the tth switch that selects the caller and selects whether or not to ring the bell, and when the switch is on, it indicates whether it is the caller or not. When selected, the bell will ring unconditionally when the switch is off.

Phone numbers that can receive calls are registered in advance in the memory 5.

The stored telephone numbers, which are sequentially read out from the memory 5, are compared with the caller's telephone number.

If the comparison results in a match, the incoming call control unit 3 rings the bell 6 and enables the incoming call and conversation by the hook signal of the handset 7. If there is a mismatch, the bell 6 is not rung and M transmission is not possible.

On the other hand, when the switch 4 is off, the above-mentioned search and collation of the memory 5 is not performed, the bell 6 is rung, and the hook signal of the handset 7 allows incoming calls to be made at all times.

(Effects of the Invention) As explained above, the present invention is provided with a memory that can register the telephone number of the other party for an incoming call, and a switch that can be switched so that all of the memory can be accessed if there are N times more.
With this switch, if there is an incoming call when the memory contents are set to 5, the incoming caller's phone number will be compared with the memory contents, and if the caller's phone number is matched, the bell will ring. By covering the incoming call control section with a gold film, it is possible to limit the number of telephones that can receive a single incoming call, which has the effect of preventing prank calls and the like.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a telephone according to the present invention. 1...Telephone 2...Line network 3...Incoming call control section 4...Switch 5...Memory 6.
... Bell 7 ... Handset patent applicant NEC Corporation representative Patent attorney Inoro Jusai Figure 1

Claims (1)

[Claims] A memory that can store the telephone number of the other party by an external operation, a switch that enables or disables the memory, and when the telephone number of the calling party is received from the telephone line, the memory is enabled by the switch. sequentially reads the memory contents and compares them with the calling party's telephone number;
A telephone set comprising: a call reception control section that performs control to allow a call to be received when a match is made, to disable a call when a match does not match, and to always allow a call to be received when the memory is disabled.