JPS6352831B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a caller selection telephone set that displays an incoming call only when a call is from a specific caller.

The proliferation and use of telephones is enormous, and busy people are literally inundated with calls. In order to alleviate the situation where it is impossible to work calmly due to indiscriminate calls regardless of the person's convenience or inconvenience, a special number is given to specific callers in advance, and calls from those callers are Devices are known from the prior art which ring a ringing bell only when a call is received, thereby relieving the user of frequent or ever-incoming calls.

Conventionally, this type of telephone device was manufactured by patent application 1983-
As shown in No. 16446, when a call is received, a message is sent to the caller informing them that the caller is absent, and the numbers that the caller presses the push button on the phone after that are a special number that has been given to the specific caller in advance. Some devices ring a bell to notify you of an incoming call. However, although such a device is effective when the caller's telephone has a push-button dial, it cannot be used when the caller's telephone has a rotary dial.

In order to solve this problem, the present invention determines a special number in advance and notifies the called party of calls only for callers who have responded with voice to the sending of this special number. To provide a caller selection telephone set in which a caller selection telephone set can be selected and a limited range of calls allowed to be received can be changed by dividing special numbers into groups.

That is, the present invention provides a caller selection telephone in which a special number is given in advance only to a specific person, and the caller is notified of the incoming call only when the special number sent from the caller is correct when the call is received. A ringing signal detection circuit detects the signal, an off-hook circuit responds to the ringing signal from the exchange and establishes a communication state with the caller, and the caller detects that the called party is absent and one digit at a time after a certain pause. A message sending circuit that transmits a decimal number, a voice receiving circuit that receives the voice of the caller who answers the decimal number, a number storage circuit that stores a special number, a call bell that notifies the recipient of the call, and a telephone. and a control circuit that drives the calling bell only when the number answered by the caller matches the special number stored in the number storage circuit when a call arrives, and an access level control circuit for the special number stored in the number storage circuit. This is a caller selection telephone set in which the level can be changed according to the needs of the called party, thereby further limiting caller selection.

The present invention will be explained in detail below based on the drawings.

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

In the figure, 1 is a central office line connected to the central office exchange, 2 is a ringing signal detection circuit for detecting a calling signal from a caller, and 3 is a sequence consisting of a microprocessor for controlling and processing the entire telephone. a control unit; 4 is a communication path switch circuit consisting of an off-hook circuit that operates when answering an incoming call; and a hook switch that operates when the handset is lifted when making a call; 5 is a message sending circuit for sending a message, a voice signal of a verification digit, etc.; 6 is an audio signal receiving circuit that receives the voice of the caller in response to the voice of the verification digit and converts it into an encoded digital signal; 7 is a number memory circuit for storing the special number for verification; 8
1 is a ringing bell, 9 is a telephone circuit, 10 is a relay R for switching between the telephone circuit and a recording section, 11 is a contact r of relay R, 12 is a recording section for recording a message from the other party, and 13 is a recording section control circuit. , 14 is a dial circuit.

Next, the operation will be explained.

When a telephone call is received from the central office line 1, a ringing signal from the central office exchange is detected by the ringing signal detection circuit 2 and transmitted to the sequence control section 3. The sequence control unit 3 operates the off-hook circuit 4 to respond to the incoming call to the central office exchange, and establishes a telephone communication state with the caller through the central office exchange. Next, the sequence control circuit 3 operates the message sending circuit 5, and after receiving the message that the recipient is not present, the verification digits are sent in a certain pause such as zero, ichi, ni, san...hachi, ku, and then a voice synthesis signal is sent. is sent out repeatedly a desired number of times. When the caller on the other end responds with a voice response of "yes" to this voiced number, the voice signal receiving circuit 6 receives the caller's voice response and converts it into an encoded digital signal. This digital signal is taken into the sequence control unit 3, and the sequence control unit 3 compares the number made up of the number of responses with the number stored in the number memory circuit 7, and only when the two match, rings the call bell 8. make it work. The called party who hears the ringing bell can talk to the caller through the telephone circuit 9. On the other hand, if there is no response from the caller, or if there is a response but the number does not match the memorized special number, after the verification digits have been sent, a signal is sent to the caller indicating that the caller is ready to record the message. (beep tone). Thereafter, the sequence control section 3 operates the 10 relays R, switches the telephone circuit 9 to the recording section 12 through the contacts of the 11 relay R, and operates the recording section control circuit 13 to record the caller's message. .

Next, when you make a call to the desired party from this phone,
When the handset is raised and the call path switch circuit 4 is turned off-hook, the telephone circuit 9 is connected to the office line 1 via the relay R contact 11, the dial circuit 14, and the call path switch circuit 4, so the dial circuit 14 is activated. You can make a call by dialing.

Another method of special number verification is that after sending a message that the recipient is absent, the caller calls a special number given in advance, such as 123, by voice, saying 1, 2, 3, and this voice signal is sent to the voice receiving circuit. Analyzes the voice and converts it into a coded digital signal, takes this digital signal into the sequence control unit, compares it with the special number in the number memory circuit, and rings the ringing bell only when the two match, notifying the recipient of the call. It is easy to think of the above-mentioned embodiment to notify the user.

Further, the special numbers stored in the number memory circuit 7 are provided with accelerator levels according to their importance, and the memorized numbers are divided into groups as in the embodiment shown in FIG. 2, and the accelerator levels are changed according to the needs of the called party. is possible. As a result, it is possible to set the addresses of all the special numbers stored in the first to third groups, or even the special numbers of both the first group and the second group, so that they can be read and verified. It is also possible to set an address for only the special number that has been entered so that it can be read and verified. In the latter case, since the special numbers in the second and third groups cannot be read and verified, a more limited selection of senders can be made compared to the former.

As described above, according to the caller selection telephone of the present invention, only the callers who have been given a special number in advance are selected, and the dialing method of the caller's telephone is changed to push button in the telephone that notifies the called party of the incoming call. Caller selection is possible not only in the case of button dialing but also in the case of rotary dialing, so the caller does not need to select a telephone, and the called party can select the number of incoming calls indiscriminately. It has the effect of being liberated. Furthermore, since the access level can be changed by dividing the special numbers into groups, it is possible to widen or further limit the range of callers to receive calls, depending on the needs of the called party. In addition, for callers who have not been given a special number or who respond to a number that does not match the special number in the number memory circuit, the message of the caller is recorded, so it is especially important for busy people or Its practical effects are great for people who need rest.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention;
FIG. 2 is a block diagram in which numbers are divided into groups and stored in a number memory circuit. 1... Office line, 2... Calling signal detection circuit, 3...
Sequence control unit, 4... call path switch circuit,
5...Message sending circuit, 6...Audio signal receiving circuit, 7...Number memory circuit, 8...Call bell, 9...Telephone circuit, 10...Switching relay R, 11
. . . Relay R contact, 12 . . . Recording section, 13 . . . Recording section control circuit, 14 . . . Dial circuit.

Claims (1)

[Claims] 1 A caller-selected telephone that detects a ringing signal from a central office exchange by telling a special number only to a specific person in advance and notifying the recipient of the call only when the special number sent by the caller is correct. A signal detection circuit, an off-hook circuit that responds to the call signal from the exchange and establishes a communication state with the caller, and a message that tells the caller that the called party is absent and a decimal number digit by digit with a certain pause. a sending circuit, a voice receiving circuit for receiving the caller's voice in response to the decimal number, a number storage circuit for storing a special number, a ringing bell that notifies the called party of the incoming call, and a ringing bell for receiving the caller's voice when the call is received. and a control circuit that drives the calling bell only when the answered number matches the special number stored in the number storage circuit, and an access level is set for the special number stored in the number storage circuit, 1. A caller selection telephone set, characterized in that the level can be changed as necessary to further limit caller selection.