JPH02192257A - Control system for facsimile equipment - Google Patents

Abstract

PURPOSE:To reduce the cost of a facsimile equipment by using a telephone set provided with a function connecting to a public telephone line, and applying recording and reproduction of reply voice. CONSTITUTION:While an off-hook detection means 35 detects off-hook of a telephone set, line switching means 21, 22 and 27 selects a telephone set. When an operation means inputs a recording/reproduction commands in the state, the switching means 21, 22 and 27 connect the telephone set to a recording/ reproducing means 23 and applies the recording of the recording/reproducing means 23 till the recording/reproduction is finished. Thus, the telephone set used conventionally is used to record a reply voice and the cost of the facsimile equipment is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control system for a facsimile machine having an automatic call receiving function.

[Conventional Technique 1F In recent years, facsimile machines have become widespread and are being used in small businesses and private homes. Facsimile machines used in such environments often share one telephone line with a telephone.

Now, when the same telephone line is shared by a telephone and a facsimile machine, it is not possible to selectively make a call to either the telephone or facsimile machine connected to that line. This method allows the receiving party to select either a telephone or a facsimile machine.

That is, the facsimile device is always connected to a facsimile device, and when an incoming call is detected, the facsimile device starts a predetermined facsimile transmission procedure, and a predetermined response signal is not obtained even after the specified time specified in the facsimile transmission procedure has elapsed. If not, it is determined that the calling party is a telephone, and the telephone line is switched to the telephone.

However, with this method, the operator using the telephone on the calling party hears the tone signal that is answered from the facsimile machine after the ringback tone ends and the other party confirms that the call has been answered. If the user does not know that the device is connected, he or she will hang up the phone at that point and will not be able to have a proper conversation.

To solve this problem, facsimile machines have been put into practical use that can respond with a predetermined voice message when an incoming call is detected.

By using a facsimile machine equipped with such a voice response function, it is possible to notify the calling operator that the facsimile machine is connected, and also to show the appropriate operation method for a single call. The operator on the calling side is
can be dealt with appropriately.

[Problems to be Solved by the Invention] However, in such conventional devices, the response voice is fixed and there is no flexibility in response voice.

Note that facsimile machines equipped with a function to record voice responses are also in practical use; however, such facsimile machines
For this purpose, for example, a telephone equipped with a special function for recording a response voice is used, resulting in an inconvenience that the cost of the device increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a control system for a facsimile machine that can solve the problems of the prior art, provide a high degree of freedom in response voice, and reduce the cost of the machine.

[Means for Solving the Problems] The present invention provides a telephone equipped with a function to connect to a public telephone line, an off-hook detection means for detecting off-hook of the telephone, and a transmission function within the device or the telephone that connects the public telephone line. A line switching means for selectively connecting to one of the lines, a recording and reproducing means for recording/reproducing audio signals, a switching means for selectively connecting the telephone to the line switching means or the recording and reproducing means, and a telephone for connecting the telephone to either the line switching means or the recording and reproducing means. and an operation means for inputting a command to the recording/reproducing means to perform a recording operation, and when the off-hook detection means detects that the telephone is off-hook, the telephone is selected by the line switching means, and the telephone is selected. When a recording/reproducing command is inputted by the operating means in this state, the telephone is connected to the recording/reproducing means by the switching means and the recording/reproducing means performs the recording operation until the recording/reproducing ends.

[Function] Therefore, since the response voice can be recorded using a commonly used telephone, the cost of the facsimile device can be reduced.

In addition, since you can change the response voice to the desired content,
The degree of freedom in responding voice is greatly increased.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a facsimile machine according to an embodiment of the present invention.

In the figure, a CPU (central processing unit) l controls each part of this facsimile machine and processes facsimile transmission control procedures, and a ROM (read
The RAM (Random Access Memory) 3 stores the control processing program executed by the CPUI and various data required when executing the processing program. It constitutes an area.

The scanner 4 is for reading original images at a predetermined resolution, the plotter 5 is for recording and outputting images at a predetermined resolution, and the operation display section 6 is for operating this facsimile device. It consists of various operation keys and various indicators.

The encoding/decoding unit 7 encodes and compresses one picture signal, and also decodes the encoded and compressed image information into the original image signal, and the image storage device 8 encodes and compresses the encoded and compressed image information. This is for storing a large amount of image information in a different state.

The modem 9 performs modulation and demodulation processing in order to transmit digital data using the public telephone line network, which is an analog line, and the network control device 10 is used to connect this facsimile device to the public telephone line network. be. In addition, the network control device 10 is equipped with an automatic call origination function and a voice response function (described later) when a call is received.
is attached. Note that this telephone 11 is also used as an input means for inputting a voice message to be responded to using a voice response function.

These, CPU% ROM2, RAM3, scanner 4
, plotter 5, operation display unit 6, encoding/decoding unit, image storage device 8, modem 9, and network control device 10 are connected to a system bus 12, and data is exchanged between these elements. Communication takes place via this system bus 12.

FIG. 2 shows an example of the operation section of the operation display section 6. As shown in FIG.

In the figure, a start key 68 is used to input a command to start the sending/receiving operation of this facsimile machine, and a stop key 6b is used to input a command to start the sending/receiving operation or recording operation of the facsimile machine.
(to be described later), the numeric keypad 6c is used to input numerical information such as the destination telephone number when performing a transmission operation, and the recording key 6d
is a voice response function equipped in network control device 1゜.
This is for inputting a command to start a recording operation to record a voice message to be responded to.

FIG. 3 shows an example of the network control device [10].

In the same figure, terminal T to which line 1 of the telephone line is connected
1 is connected to one common terminal 2Lac of a two-circuit switch 21 that switches and connects the telephone line to either the telephone 11 or the facsimile machine, and the terminal T2 to which the telephone line L2 is connected is It is connected to the other common terminal 21bc of the switch 21.

Terminal T3 to which the connection end of the telephone 11 on the line Ll side is connected
．． is one common terminal 22a of a two-circuit switch 22 that switches and connects the telephone 11 to either the telephone line or the recording/playback device 23 that records/plays the response voice.
Terminal T4, to which the connection end of the telephone 11 on the line L2 side is connected, is connected to the other common terminal 22bc of the switch 22.

One switching end 21ab (normally closed contact) connected to the common terminal 21ac of the switching device 21 is connected to the switching end 22a of the switching device 22.
b (normally closed contact of the common terminal 22ac) and one switching end 21bb (normally closed contact) connected to the common terminal 21bc is connected to the switching end 22bb (normally closed contact of the common terminal 22ac) of the switch 22.
bc normally closed contact).

The other switching end 21aa (normally open contact) connected to the common terminal 21ac of the switching device 21 is connected to one terminal of the primary winding of the transformer 26 via the switch 24 and the capacitor 25, and is connected to the common terminal 21bc. The other switching end 21ba (normally open contact) is connected to the other terminal of the primary winding of the transformer 26.

The secondary winding of the transformer 26 is connected to the common terminals 27ac and 2 of a two-circuit switch 27 that switches and connects the telephone line to either the output end of the recording/playback device 23 or the modem 9.
Connected to 7bc. One switching end 2 of the switching device 27
7ab and 27bb (normally closed contacts) are terminals T5. to which the modem 9 is connected. T6 and the other switching end 27
aa and 27ba (normally open contacts) are connected to the output end of the recording/playback device 23.

The signals at the interconnection ends of the switching ends 21ab and 22ab and the interconnection between the switching ends 21bb and 22 are applied to the input end of the diode bridge circuit 29 with DC cut off by the capacitor 28. The signal at the output end of this diode bridge circuit 29 is applied to a calling signal detection circuit 30 that detects a calling signal output from the exchange when a call is received.

The signals at the switching end 22aa and the switching end 22ba are recorded with the direct current cut off by the capacitor 31. It is added to the input terminal of 23. In addition, the switching end 2
A battery 32 for supplying driving power to the telephone 11 is connected between the switching terminal 2aa and the switching end 22ba on the switching device 22 side of the capacitor 31.

The second ringing signal detection circuit 33 is for detecting a second ringing signal applied from a communication network using a telephone line, such as a ringing signal from a facsimile communication network, and the detection signal SDI is used for control It has been added to Section 34. The polarity detection circuit 35 is for detecting the DC state of the telephone line, and its detection signal SD2 is sent to the control unit 34.
has been added to.

Further, the detection signal SD3 of the calling signal detection circuit 30 is also output to the control section 34.

The control unit 34 receives the detection signal 501. A control signal SC that controls the switching operation of the switching devices 21, 22, and 27 based on various information notified by SO2, SO2, and cpUl.
1, SC2, SC3, and a control signal SC4 that turns on/off the switch 24 and outputs it to the corresponding element, and also outputs the control signal SC4 to turn on/off the switch 24.
Control playback operations. It also controls the operation of the monitor circuit 36.

The recording/playback device 23 also includes, for example, an audio encoding/synthesizing device that converts an audio signal into encoded data and synthesizes the encoded audio data into the original audio signal, and an audio recording/synthesizing device that stores the encoded audio data. A device that combines memory,
Alternatively, it may be a tape recorder or the like, and its playback output may be output from the switching ends 27aa, 27b of the switching device 27 as described above.
a (normally open contact), is amplified via the monitor circuit 36, and is output for monitoring from the speaker 37.

Further, the volume and on/off operation of the monitor circuit 36 are controlled by the control unit 34 .

A coil 38 connected in parallel to the primary winding of the transformer 26 connects the telephone line with direct current when the switch 21 is switched to the normally open contact side, and is connected in parallel to the switch 24. Connected capacitor 39 and resistor 40
The series circuit is for protecting the switch 24.

With the above configuration, an example of processing performed by the CPU and the control unit 34 of the network control bag fiflO regarding the telephone 11 during operation standby is shown in FIG.
The operations of the UI and the control unit 34 of the network control device 10 will be described in a comprehensive manner without distinguishing between them.

That is, when on standby, the switches 21, 22, 27 are switched to the normally closed contact side, the switch 24 is turned off, the telephone line is connected to the telephone 11, and the secondary side of the transformer 26 is connected to the modem 9. Connect to.

In this state, the detection signal SD of the polarity detection circuit 35
If the telephone 11 is off-hook and the result of determination 101 is YES, the recording key 6d of the operation display section 6 is operated. It is checked whether a recording command is input (determination 102), and when the result of determination 102 is NO, the process returns to determination 101.

When the result of judgment 102 is YES, since the operator has turned on the recording key 6d to record the response voice, the recording operation of the recording/playback device 23 is started (
Process 103), the switch 22 is switched to the normally open contact side and the telephone 11 is connected to the input side of the recording/playback device 23 (Process 104).

As a result, power from the battery 32 is supplied to the telephone 11, and the audio signal input by the operator from the telephone 11 is input to the recording/reproducing device 23 via the switch 22 and recorded.

In this state, the process waits until the operator finishes inputting the recorded voice and the stop key 6b of the operation display section 6 is operated (No loop of judgment 105).

If the result of judgment 105 is YES, the recording/playback device i
23 is stopped (processing 106), and the switching device 22
to return to the normally closed contact side and connect the telephone 11 to the telephone line side (Process 107), monitor whether the telephone 11 is on-hook (No loop in 108), Judgment 108
If the result becomes YES, this process ends.

Therefore, when an operator wants to record the voice in response to an automatic call, he or she must first pick up the handset of the telephone 11 and turn on the recording key 6d on the operation display section 6, and then record the voice to be recorded, for example, when the facsimile machine is being used. utter the name of the office, etc. that is being connected, and a message notifying that the line is connected to the facsimile machine, and when the recording is finished, turn on the stop key 6b of the operation display section 6, and press the telephone 11. hang up the phone.

In this way, you can still use your regular telephone when recording a voice response message.
When one telephone line is shared with a telephone, the telephone that has been used until then can be used as is when installing the facsimile device, so the cost of installing the facsimile device can be reduced.

Such an operation allows the response voice to be recorded.

You can also check the recorded response voice. In that case 5, for example, if the recording key 6d is turned on while the telephone 11 remains on-hook, the recording/
The reproduction operation of the reproduction device 123 is started, and the recorded voice message is reproduced and output from the speaker 37.

That is, in this case, the operator can listen to the recorded voice message and check its contents by turning on the recording key 6d without picking up the receiver of the telephone 11.

FIG. 5 shows an example of processing performed by this facsimile machine when detecting an incoming call.

That is, when the detection signal SD3 is output from the ringing signal detection circuit 30 and an incoming call is detected, the switch 24 is turned on (201), the switch 1I21 is switched to the normally open contact side, the telephone line is connected to DC, and the telephone line is held. (Processing 202)
.

In this state, switch 27 to the normally open contact side,
The secondary side of the transformer 26 is connected to the output side of the recording/playback device 23 (step 203), and with the audio output operation of the monitor circuit 36 turned off, the playback operation of the recording/playback device 23 is performed, and the recorded sound is The caller sends a response voice to the calling party (process 204).

As a result, the calling party is notified of the response voice message from this facsimile machine.

When the retransmission operation of the recording/playback device i23 is finished, the switch 27 is switched to the normally closed contact side, and the transformer 26
The secondary side of the facsimile is connected to the modem 9, and a predetermined facsimile transmission procedure is started (process 205).

In this way, when an incoming call is detected, the recording/playback device i2
Since the response voice message recorded in step 3 is responded to by the calling party, it is possible to warn the person who has mistakenly called this facsimile machine.

As described above, in this embodiment, since the response voice can be recorded using a normal telephone, the cost of installing a facsimile machine can be reduced.

Note that in the above description, parts other than those directly related to the present invention are omitted.

Furthermore, in the embodiment described above, the operation display section 6 is provided with the recording key 6d for inputting a recording command, but the start key 68 can also be used for inputting a recording command.

By the way, in the embodiment described above, a normal telephone is used to record the response voice, but the same telephone can also be used to check the content of the response voice. This will be explained next.

FIG. 6 shows a facsimile machine according to another embodiment of the invention. In this figure, the same parts and corresponding parts as in FIG. 1 are given the same reference numerals.

The system control unit 51 is for controlling the operation of each part of this facsimile machine, and the parameter memory 52 is for storing various information specific to this facsimile machine.

The communication control unit 53 is for carrying out predetermined facsimile transmission control procedure processing, and the network control unit 54 is the network control unit 54 shown in FIG. 10 except that the control section 34 is removed, and in this case, the operation control of the network control device 10 is performed by the communication control section 53.

FIG. 7 shows an example of the operation display section 6.

In this case, the operation display section 6 has a playback key 6e added to the operation keys shown in FIG. 2 for playing back recorded audio of the recording function provided in the network control device 54.

FIG. 8 shows an example of the configuration of the network control device 54.

In this figure, the same parts and corresponding parts as in FIG. 3 are given the same reference numerals.

In the figure, a switching end 21aa of the switching device 21 is connected to a switching end 60ab (normally closed contact) of a two-circuit switching device 60, and a switching end 21ba is connected to a switching end 60ab (normally closed contact) of a two-circuit switching device 60.
bb (normally closed contact).

The interconnection end between the switching end 22aa of the switching device 22 and the positive electrode of the battery 32 is the switching end 60aa (normally open contact) of the switching device 60.
is connected to the switching end 22ba of the switching device 22 and the battery 3.
The interconnection end with the negative electrode of No. 2 is the switching end 60ba of the switch 60.
(normally open contact).

The common terminal 60ac of the switch 60 is connected to one terminal of the primary winding of a 2-wire/4-wire converter (so-called hybrid transformer) 61 via the switch 24 and the capacitor 25, and the common terminal 60bc is It is connected to the other terminal of the primary winding of the 74-wire converter 61.

The terminal of the secondary winding on the received signal output side of the 2-wire 74-wire converter 61 is the common terminal 62ac of the 2-circuit switch 62.

62bc, and the terminal of the secondary winding on the transmission signal input side is connected to the common terminals 63ac and 62 of the two-circuit switch 63.
connected to bc.

Switching ends 62ab and 62bb (normally closed contacts) of the switch 62 are connected to the receiving signal input terminal (not shown) of the modem 9, and switching ends 62aa and 62ba (normally open contacts) are connected to the recording/reproducing device 23. Connected to the signal input end.

Switching ends 63ab and 63bb (normally closed contacts) of the switch 63 are connected to the transmission signal output end (not shown) of the modem 9, and switching ends 63aa and 63ha (normally open contacts) are connected to the playback terminal of the recording/playback device 23. Connected to the signal output end.

The communication control unit 53 receives the detection signal 501. Control signals SCI, SC2, SC5, SC5 that control switching operations of the switching devices 21, 22, 60, 62, 63 based on various information notified by SO2, SO2 and the system control unit 51
.

With the above configuration, the system control section 51 and the communication control section 5
3 is an example of the processing performed on the telephone 11 during operation standby.
In the following description, the operations of the system control section 51 and the communication control section 53 will be collectively explained without distinguishing between them.

That is, during operation standby, the switching devices 21, 22, 60,
Switch 6z and 63 to the normally closed contact side, and switch 2
4 is turned off, the telephone line is connected to the telephone set 11, and the secondary side of the 2IIA/4-wire converter 61 is connected to the modem 9.
Connect to.

In this state, the detection signal SD of the polarity detection circuit 35
If the telephone 11 is off-hook and the result of determination 301 is YES, the record key 6d or playback key 6e of the operation display section 6 is pressed. It is checked whether the operation is performed and a recording command or a playback command is input (judgments 302 and 303).

When the recording key 6d is operated and the result of the judgment 302 becomes YES, the switch 22, 60, 62 is switched to the normally open contact side (process 304), and with the audio output operation of the monitor circuit 36 turned off, The recording operation of the recording/playback device 23 is started (process 305).

As a result, the power from the battery 32 is supplied to the g1 telephone set 11, and the audio signal input from the telephone set 11 by the operator is passed through the switch 22, 60. The S sound is inputted to the recording input terminal of the recording/playback device 23 and recorded on the S sound/playback device 23. Also, at this time, the monitor speaker 37
Recorded audio is not output.

In this state, the process waits until the input of the recorded voice by the operator is completed and the stop key 6b of the operation display section 6 is operated (No loop of judgment 306).

If the result of judgment 306 is YES, the recording/playback device t
The recording operation of 23 is stopped (process 307), and the switching device 22
．． Process 308) to return the 60° 62 to the normally closed contact side and connect the telephone 11 to the telephone line side, and monitor and determine that the telephone 11 is on-hook (No loop in 309).
, if the result of judgment 309 is YES, this process ends.

Also, when the playback key 6e is operated, the result of judgment 302 is N.
When it becomes O, the switching devices 22, 60, and 63 are switched to the normally open contact side (process 310), and further, with the audio output operation of the monitor circuit 36 turned off, the playback operation of the recording/playback device 23 is started. (processing 311).

As a result, power from the battery 32 is supplied to the telephone 11, and the audio signal reproduced from the recording/playback device i23 is transmitted via the switch 63, the 2-wire/4-wire converter 62, and the switch 60.22. The voice is output to the telephone 11, and the operator can listen to the recorded voice from the telephone 11.

In this state, the process waits until the audio reproduction from the recording/playback device 23 is finished and the stop key 6b of the operation display section 6 is operated (No loop of judgment 312).

If the result of the judgment 312 is YES, the recording/playback device 2
3 stops the regeneration operation (process 313), and the switching device 22,
60° 63 is returned to the normally closed contact side and the telephone 11 is connected to the telephone line side (process 314), and the process moves to judgment 309.

Therefore, when an operator records the voice that responds to an automatic incoming call, the operator must first do 1! After picking up the receiver of the handset 11 and turning on the recording key 6d of the operation display section 6, the voice to be recorded, for example, the name of the office where the facsimile machine is used, and the line connected to the facsimile machine are displayed. After uttering a message informing the user that the user is currently on the phone, and finishing the recording, the user turns on the stop key 6b of the operation display section 6 and puts the receiver of the telephone 11 back on the receiver.

When checking the response voice, the user can listen to the recorded response voice by picking up the receiver of the telephone 11 and turning on the playback key 6e of the operation display section 6.

Further, when the confirmation of the response voice is completed, the stop key 6b is turned on.

In this way, in this embodiment, the normal telephone 11 is used to record and play back the response voice, so when recording, the sidetone function of the telephone 11 allows the recorded voice to be fed back. You can check the sound quality and volume of the response voice.

FIG. 5 shows an example of processing performed by this facsimile machine when detecting an incoming call.

That is, it monitors that the detection signal SD3 is output from the ringing signal detection circuit 30 to detect an incoming call (determination 40).
1 No loop), the incoming call is detected and the result of judgment 401 is Y.
When ES is reached, the switch 24 is turned on and the switching devices 21 and 63 are switched to the normally open contact side (process 402).
.

As a result, the telephone line is connected to direct current, and the telephone line becomes a recording/playback device! ! 23.

Further, with the audio output operation of the monitor circuit 36 turned off, the recording/reproduction device 23 is caused to perform a reproduction operation, and the recorded response voice is sent to the calling party (process 403).

As a result, the calling party is notified of the response voice message from this facsimile machine.

Then, when the retransmission operation of the recording/playback device 23 is finished,
The switch 63 is switched to the normally closed contact side, the secondary side of the 2-wire 74-wire converter 61 is connected to the modem 9, and a predetermined facsimile transmission procedure is started (process 405).

In this way, when an incoming call is detected, the recording/playback device 23
Since the answering voice message recorded in the facsimile machine is answered by the calling party, it is possible to warn the person who made the mistake of calling the facsimile machine.

By the way, in the above-described embodiment, only the response voice is recorded on the recording/playback device, but an answering machine function can also be realized by using the function of the recording/playback device.

[Effects of the Invention] As explained above, according to the present invention, it is possible to record a response voice using a telephone equipped with a function to connect to a public telephone line.
Furthermore, since reproduction is performed, the cost of the facsimile machine can be reduced. Furthermore, since the response voice can have a desired content, it is possible to obtain the effect that the degree of freedom in the response voice is greatly increased.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a facsimile machine according to an embodiment of the present invention, FIG. 2 is a schematic diagram showing an example of an operation display section, FIG. 3 is a circuit diagram showing an example of a network control device, and FIG. 5 is a flowchart showing an example of processing when recording a voice, FIG. 5 is a flowchart showing an example of processing when responding to an incoming call, FIG. 6 is a block diagram showing a facsimile apparatus according to another embodiment of the present invention, and FIG. 6 is a schematic diagram showing an example of an operation display section of a facsimile machine, FIG. 8 is a circuit diagram showing another example of a network control device, FIG. 9 is a flowchart showing an example of processing when recording and playing back a response voice, and FIG. FIG. 10 is a flowchart showing another example of processing when responding to an incoming call. 1...CPU (central processing unit), 2...ROM (read only memory), 3...RAM (random memory)
access memory), 6... operation display section, 6b...
Stop key 6d...recording key, 6e...playback key, 10.53...network control device, 21, 22, 27,
60, 62, 63... Switching device, 23... Recording/playback device, 32... Battery, 34... Control unit, 53...
...Communication control unit. Figure 1 Figure Figure Figure Figure Figure Figure

Claims (2)

[Claims] (1) In a control system for a facsimile machine equipped with an automatic call receiving device, a telephone set is equipped with a function to connect to a public telephone line, an off-hook detection means for detecting off-hook of this telephone set, and a transmission function inside the machine that connects the public telephone line to the telephone line. Alternatively, a line switching means selectively connects to either one of the telephones, a recording/reproducing means recording/reproducing an audio signal, and the telephone is selectively connected to the recording input end of the line switching means or the recording/reproducing means. A switching means, a power supply means for supplying driving power to the telephone via the switching means, and an operating means for inputting a command for a recording operation to the recording and reproducing means, and the off-hook detection means detects off-hook of the telephone. When the line switching means selects the telephone, and in this state a recording command is inputted by the operating means, the switching means connects the telephone to the recording and reproducing means, and the operating means ends the recording. The recording and playback means performs the recording operation until an operation is input, and when the recording operation is finished, the switching means connects the telephone to the line switching means, and when an incoming call is detected, the recorded voice is transferred to the recording and playback means. A facsimile machine control method that reproduces signals and sends them out over the line. (2) In a control system for a facsimile machine equipped with an automatic call receiving device, a telephone set is equipped with a function to connect to a public telephone line, an off-hook detection means for detecting off-hook of the telephone set, and a transmission function inside the machine that connects the public telephone line to the telephone line. Alternatively, a line switching means selectively connects to either one of the telephones, a first switching means selectively connecting the telephone to the line switching means or a transmission function inside the device, and via this first switching circuit. a power supply means for supplying driving power to the telephone; a second switching means for switchingly connecting the line switching means or the first switching means to the transmission function; and transmitting and receiving signals from the output of the second switching means. a 2-wire/4-wire conversion means for separating the audio signal, a recording/playback means for recording/playing the audio signal, and a switching connection of the transmitted/received signal separated by the 2-wire/4-wire conversion means to the transmission means or the recording/playback means. a third switching means, and an operating means for inputting a command to the recording and reproducing means to perform a recording and reproducing operation, and when the off-hook detecting means detects that the telephone is off-hook, the telephone is selected by the line switching means; In this state, when a recording command or a playback command is inputted by the operation means, the first switching means is set to the transmission function side, the second switching means is set to the first switching means side, and the third switching means is set to the transmission function side. Switching the switching means to the recording and reproducing means side, connecting the telephone to the recording and reproducing means, and causing the recording and reproducing means to perform the recording and reproducing operation until the recording or reproduction ends, and when the recording and reproducing operation is finished, the above-mentioned A facsimile machine characterized in that the first switching means, the second switching means, and the third switching means are restored, and when an incoming call is detected, the voice signal recorded in the recording and reproducing means is reproduced and transmitted to the line. Device control method.