JPH04156753A - Automatic answering telephone circuit - Google Patents

Abstract

PURPOSE:To avoid calling especially unimportant opposite parties and their calls during operational work by setting a number selection setting state executing a call only against the call from a specific caller even during his presence by means of a selection setting signal. CONSTITUTION:A control circuit 25 stores a calling side telephone number enabling a call during his presence to be set in advance in a secondary recording circuit 26. In the case a telephone number on the calling side agrees with a telephone number recorded in the secondary recording circuit 26 against the call on the calling side, a signal for a call on the calling side performs calling control for receiving side caller through a speaker circuit 28 when a selection setting signal 6 setting whether or not a call is in a call setting. Further, in the case a telephone number on the calling side does not agree with the telephone number stored in the secondary recording circuit 26 against the caller on the calling side, a message for the caller side is controlled to be stored in a magnetic recording circuit 27 after an absence notification on the caller side. Thus, especially unimportant opposite parties and their calls can be avoided during operational work.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an answering machine, and more particularly to an answering machine circuit used in an answering machine.

[Prior Art] Conventional answering machines have a means for setting in advance whether they are busy or absent, and in the case of the busy setting, when a ringing signal is received, the telephone emits a ringing tone to alert the called party. Call the caller. In addition, in the case of the absence setting, when a call signal is received, the telephone detects this and responds. Then, after a certain period of time has elapsed, the caller is notified of the caller's absence, and then the caller's message is recorded on the magnetic recording circuit. This recorded message is reproduced as a sound from the speaker circuit by a reproduction operation.

[Problems to be Solved by the Invention] With the above-described conventional answering machine, when the answering machine is set to busy, the business may be interrupted by a call from an unnecessary party.

[Means for Solving the Problems] The answering machine circuit of the present invention includes an input/output circuit into which an answering machine signal is input, and a level conversion circuit that converts the answering machine signal output from the input/output circuit to a level for a logic circuit. a decoding circuit that decodes the output of this level conversion circuit; a secondary storage circuit that stores a plurality of preset telephone numbers that are available for calls; and a calling party telephone number that is output from the decoding circuit. and a telephone number stored in the secondary storage circuit to obtain an output indicating whether or not they match; magnetic recording means for recording a message sent from the calling party; and a calling party. a speaker circuit for audibly outputting a ringing tone from a telephone and a message recorded in the magnetic recording circuit; In this case, when the selection setting signal for setting whether or not to make a call is the call setting, the call signal of the calling party is transmitted through the speaker circuit to control the call of the called party, and the calling party is If the telephone number of the calling party does not match the telephone number stored in the secondary storage circuit, the calling party is notified of the caller's absence and then the message of the calling party is recorded in the magnetic recording circuit. The invention is characterized in that it comprises a control means for controlling so as to.

[Example code] Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
A block diagram showing an answering machine using the telephone circuit shown in FIG.
FIG. 3 is a flow diagram showing the operation of the answering machine circuit of FIG.

The operation of this answering machine circuit 2 will be explained with reference to these figures.

The control circuit 25 shown in FIG. 2 causes the secondary storage circuit 2θ to store the calling party's telephone number, which is preset by an external telephone number setting circuit (not shown) and allows a call during the call. In addition to the conventional answering machine setting and busy setting, the caller on the receiving side can also set the number selection setting, which allows calls to be made only for calls from a specific caller even when the caller is busy. It is set in advance by the selection setting signal 6.

After the above settings are completed, a call signal from the calling side is input from the subscriber's telephone line 3 to the input/output circuit 21 via the exchange. When the input/output circuit 21 detects this call signal,
The reception of the call is notified to the control circuit 25. The control circuit 25 checks which of the above settings the selection setting signal 6 has.

When the selection setting signal 6 is set to number selection, the input/output circuit 21 sends the telephone number data of the calling party sent along with the call signal to the level conversion circuit 22, and the level conversion circuit 22 This telephone number data is level-converted into a logic value for a logic circuit and output to the decoding circuit 23. The decoding circuit 23 decodes this telephone number data and extracts the calling party's telephone number. When the control circuit 25 confirms the extraction of the telephone number of the calling party and the number selection setting, the control circuit 25 sequentially reads out the telephone numbers pre-recorded in the secondary storage circuit 26 and uses the telephone number extracted by the decoding circuit 23. Verify with. The control circuit 25 includes the comparison circuit 2
When the match signal from the above-mentioned verification is received from No. 4, the speaker circuit 28 emits a ringing tone in response to the received call, and the called party is called, as in the case of the conventional busy setting.

Thereafter, a conversation with the calling party is conducted in response to the caller's response.

On the other hand, if the comparison circuit 24 does not find a match between the extracted calling party telephone number and the telephone number stored in the secondary storage circuit 26, the control circuit 25 The system notifies the calling party of the absence of the called party through the input/output circuit 21, and after activating the magnetic recording circuit 27 using a cassette tape record, requests the calling party to send a message and sends the message. The message from the calling side is recorded on the magnetic recording circuit 27.

[Effects of the Invention] As explained above, the present invention has the following advantages:
In addition to the conventional answering machine and busy settings, the number selection setting allows calls to be made only for calls from specific callers even when the caller is on the receiving end, allowing the called party to continue working. Among other things, it has the effect of allowing the user to concentrate on work by avoiding calls with callers who do not particularly need to talk to, and also has the effect of preventing nuisance calls.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
A block diagram showing an answering machine using the telephone circuit shown in FIG.
FIG. 3 is a flow diagram showing the operation of the answering machine circuit of FIG. 1...Telephone circuit, 2...Answering machine circuit, 3...
subscriber telephone line, 4... answering machine signal, 5... call signal, 6... selection setting signal, 11... hook switch, 21... input/output circuit, 22... level conversion circuit,
23... Decode circuit, 24... Comparison circuit, 25.
...Control circuit, 26...Secondary storage circuit, 27...Magnetic recording circuit, 28...Speaker circuit.

Claims (1)

[Scope of Claims] An input/output circuit into which an answering signal is input, a level conversion circuit that converts the answering signal output from the input/output circuit to a level for a logic circuit, and decodes the output of this level conversion circuit. a decoding circuit; a secondary storage circuit that stores a plurality of telephone numbers that are set in advance and are capable of making calls; and a calling party telephone number outputted from the decoding circuit is stored in the secondary storage circuit. a comparison means for comparing with a telephone number and obtaining an output indicating whether or not there is a match; a magnetic recording means for recording a message sent from the calling party; and a ringing tone from the calling party and recording it in the magnetic recording circuit. a speaker circuit that outputs the message as a voice; and a speaker circuit that sets whether or not to make a call when the telephone number of the calling party matches the telephone number stored in the secondary storage circuit. When the selection setting signal to be set is a call setting, the calling party's call signal is sent to the called party via the speaker circuit, and the calling party's telephone number is If the phone number does not match the telephone number stored in the secondary storage circuit, the caller is notified of the caller's absence, and then the caller's message is recorded in the magnetic recording circuit. An answering machine circuit characterized by: