JPS60208151A - Call restricting telephone set - Google Patents

Abstract

PURPOSE:To attain ease of restriction of a call by attaining talking only when a number coincident with a registered cipher code and a telephone number is dialed from a dial section to a ciphering storage collation section by using the ciphered registering telephone number. CONSTITUTION:When a handset section 2 is hooked off, a call request of a subscriber is given to a ciphering storage collation section 3 and a call confirming tone is returned succeedingly from the ciphering storage collation section 3 to the handset section 2. The caller dials (1) a ciphering code for registering a predetermined cipher code, and after the ciphering registration confirming tone 3 is stored. In making talking, the handset is hooked off, the ciphering code is dialed (1), and then the subscriber number is dialed (1). Only when the cipher codeand the subscriber number are coincident with the memory in the cipher storage collation section 3, the call is connected to an exchange 7 through an exchange interface section 4 and when dissident, a restricted tone is transmitted to the handset section 2. Thus, the call is regulated easily by the cipher code.

Description

[Detailed description of the invention] The present invention relates to a call restriction telephone.

A system is adopted in which calls by telephone subscribers are regulated on a subscriber-by-subscriber basis at the telephone exchange. As a result, all calls from that single phone are restricted, depending on the caller.

The purpose of the present invention is to provide a call-restricted telephone that registers a code and uses the code to enable outgoing calls, and in other cases restricts outgoing calls so that only specific callers can use it. be.

In order to achieve the above-mentioned object, the outgoing call restriction telephone according to the present invention includes a dial section, a transmitter/receiver section, a code storage/verification section connected to the dial section and the transmitter/receiver section, and a subscriber line. When the code for code registration is sent from the dial unit, the code storage/verification unit sends a code registration confirmation sound to the transmitter/receiver unit, and the code storage/verification unit sends a code registration confirmation sound to the handset/receiver unit so that the dial unit can communicate with the code. When a number or subscriber number is sent, it is memorized, and then when a code is sent from the dial section, the code is compared with the stored code, and if they do not match, a call is made to the handset/receiver section. A restriction tone is transmitted to restrict outgoing calls, and when a match is found, a requested subscriber number is sent to the transmitting/receiving section, a subscriber number is sent from the dialing section, and the subscriber number is coded with the matching code. When the subscriber number corresponds to the subscriber number, the subscriber number is sent to the exchange.

According to the above configuration, when a subscriber makes a call, the call can be restricted according to the dialed code, and the object of the present invention is completely achieved.

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 call restriction telephone according to the present invention. The telephone NA 5 includes a dialing section 1, a transmitting/receiving section 2, a cipher storage/verification section 3 that stores the cipher, a callable destination number and a subscriber number, and collates the cipher with an input cipher, and an exchange interface section 4. Contains:

First, as a procedure, a case in which a subscriber registers a code and a calling restriction method will be described.

When the subscriber's call request is transmitted to the code storage/verification unit 3 by off-hook of the transmitter/receiver unit 2, a call confirmation tone is sent from the code memory/verifier 3 to the receiver/transceiver unit 2.

The subscriber dials a predetermined code for code registration from the dial unit 1 using a dialing confirmation tone. When the cipher storage/verification section 3 confirms that the cipher is a cipher for cipher registration through this operation, it sends out a cipher registration confirmation sound to the transmitting/receiving section 2.

When the subscriber receives the code registration confirmation tone, the subscriber then dials a destination number or subscriber number that can communicate with the code.

The code storage/verification unit 3 stores and holds the dialed code and the callable destination number or subscriber number.

With the above steps, the registration of the cipher and call restriction method is completed. The above registration is possible for multiple ciphers.

Next, a case where a subscriber makes a call will be explained.

When the subscriber's call request is transmitted to the code storage/verification unit 3 by off-hook of the transmitter/receiver unit 2, a call confirmation tone is sent from the code memory/verifier 3 to the receiver/transceiver unit 2.

The subscriber dials the code upon receiving the call confirmation tone.

Through this operation, the code memory/verification unit 3-digit dial unit 1 compares the input code with the stored code, and if the codes do not match, a call restriction tone is sent to the transmitter/receiver unit 2. Regulation of transmission and transmission. If the codes match, the subscriber number request amount is sent to the transmitter/receiver section 2.

Upon receiving the subscriber number request, the subscriber dials the subscriber number.

The code storage/verification unit 3 determines whether the dialed subscriber number is a callable subscriber number based on the code by comparing it with the stored subscriber number,
If the subscriber number is not a callable subscriber number, a call restriction tone is sent to the transmitter/receiver section 2 to restrict outgoing calls.

Furthermore, when the subscriber number is available for telephone calls, the subscriber number is sent to the exchange 7 through the exchange interface section 4, thereby making it possible to make telephone calls.

As described in detail above, according to the present invention, by registering a code and a call restriction method corresponding to the code, it is possible to carry out call control in accordance with the code known to the calling subscriber. In other words, if there are multiple people who may use the telephone, the owner of the telephone can freely restrict outgoing calls using the code.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a call restriction telephone according to the present invention. 1... Dial unit 2... Transceiver unit 3... Encryption memory collation unit 4... Exchange interface 5... Telephone 6...
・Subscriber line 7...exchange

Claims (1)

[Claims] It includes a dial section, a transmitting/receiving section, a code storage/verification section connected to the dial section and the transmitting/receiving section, and an exchange interface section connected to a subscriber line, and the code storage/verification section is When the code for code registration is sent from the dial unit, a code registration confirmation sound is sent to the handset/receiver unit, and when the dial unit sends a destination number or subscriber number that can be used to communicate with the code, it is stored. Then, when a code is sent from the dial unit, the code is compared with the stored code, and if there is a match, a call restriction tone is sent to the handset/receiver unit to restrict the call. At this time, a subscriber number request tone is sent to the transmitter/receiver section, and when a subscriber number is sent from the dial section and the subscriber number corresponds to the matching code, the subscriber number is sent. A call-restricted telephone configured to send to an exchange.