JPH1013570A - Control method for facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly reproduce an automatic answering message of an automatic answering telephone set from a visit place by allowing a band filter circuit to cut off a signal in a frequency band of a facsimile call signal when a control signal detection circuit detects the facsimile call signal after a line is closed. SOLUTION: An automatic answering telephone set 4 records a reception signal after transmission of a prescribed voice reply message and reproduces and sends a recorded reception signal upon the detection of a prescribed tone signal during the transmission of a voice reply message. After the automatic answering telephone set replies an incoming call and a DC detection circuit 1 detects line closing, when a control signal detection circuit 6 detects a facsimile call signal, a system control section 10 monitors it and a band stop filter circuit 3 cuts off a signal in a frequency band of the facsimile call signal. Thus, it is avoided that the facsimile equipment makes line changeover through the detection of the call signal at reproduction of the automatic answering message.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method for detecting an incoming call.
When a predetermined tone signal is detected while the voice response message is being sent out while the voice response message is being sent, the answering machine which reproduces and sends the recorded reception signal is connected. And a method of controlling a facsimile apparatus that shares a line with the answering machine.

[0002]

2. Description of the Related Art Conventionally, a facsimile apparatus in which an external telephone is connected so that a line can be shared between a main unit and an external telephone has been put to practical use. Using this facsimile apparatus, facsimile communication and telephone calls can be performed using a single telephone line, and telephones already installed in the home can be used as they are, so that, in particular, ordinary homes and small offices It is suitable for, for example. Further, as this external telephone, a so-called answering machine can be applied.

[0003] In this case, if the answering machine is set so as to give priority to the incoming call response, for example, if a call is made from a telephone, the answering machine will answer the incoming call first, so that the message is normally received. Can be recorded.

When a call is made from a facsimile apparatus, the answering machine first answers the incoming call. In this case, in response to the incoming call response, the other facsimile apparatus sends a predetermined facsimile calling signal. And thereby
Since the facsimile calling signal is detected by the facsimile apparatus on the own terminal side, the line is thereafter switched to the facsimile apparatus side and a predetermined facsimile communication operation is performed.
When the facsimile communication operation is completed, the line is restored, and the operation returns to the standby state.

Some answering machines are capable of performing an operation corresponding to the type of the received tone signal when a specific tone signal is received during detection of an incoming call or during transmission of a response voice message. Has been put to practical use.

In such an answering machine having a remote control function, a user calls his / her answering machine from another telephone and listens to a voice message while receiving a specific tone signal (for example, dial 2). , Etc.), you can play the answering machine message recorded on the answering machine at that point in time, and you can know the answering machine message even if you are not at the location of the answering machine, It is convenient.

[0007]

However, when such an answering machine is connected as an external telephone of a facsimile machine, the following inconveniences have occurred.

That is, when a call is originated from a facsimile machine, the answering machine that has responded to the incoming call receives a facsimile control signal such as a facsimile call signal transmitted from the facsimile machine. The control signal is recorded.

At this time, if the user performs the above-mentioned operation to reproduce the answering machine message from outside, the facsimile control signal is reproduced from the answering machine and the reproduced facsimile control signal is The facsimile control signal is sent to the telephone of the user who is trying to confirm, and the facsimile control signal is also detected by the facsimile apparatus on its own terminal side. At that time, the facsimile apparatus switches the line to the facsimile apparatus side and connects. If the line is switched to the facsimile apparatus side in this way, a situation arises in which the user on the go cannot reproduce the answering machine message.

The present invention has been made in view of such circumstances, and when an answering machine is connected as an external telephone, an answering machine message of the answering machine can be appropriately reproduced from an outside location. It is an object of the present invention to provide a method for controlling a facsimile machine.

[0011]

According to the present invention, when an incoming call is detected, a reception signal is recorded after transmitting a predetermined voice response message, and a predetermined tone signal is detected while transmitting the voice response message. Then, an answering machine that reproduces and sends the recorded received signal is connected,
In this method of controlling a facsimile apparatus sharing a line with an answering machine, a switching means for switching and connecting a line to the answering machine and the main unit, and a switching means provided between the switching means and the answering machine, Control signal detecting means for detecting a facsimile calling signal, and a band-pass filter circuit interposed between the switching means and the answering machine for cutting a signal in a frequency band of the facsimile calling signal. After that, when the control signal detecting means detects the facsimile calling signal,
A predetermined incoming call operation is performed.

When an incoming call is detected, a predetermined voice response message is sent out, a received signal is recorded, and
When a predetermined tone signal is detected while the voice response message is being transmitted, an answering machine for reproducing and transmitting the recorded reception signal is connected, and a method of controlling a facsimile apparatus sharing a line with the answering machine. At
Switching means for switching and connecting a line to the answering machine and the main unit; control signal detecting means provided between the switching means and the answering machine for detecting a predetermined facsimile calling signal; And an attenuator provided between the answering machine and the switching means for attenuating a signal level exchanged between the switching means and the answering machine; a signal level on the switching means side of the attenuator and the attenuator. The signal level of the answering machine side is provided, and if the former is higher than the latter, a level determining means for outputting a determination signal is provided, and after the line is closed, the control signal detecting means sets the facsimile calling When a signal is detected,
When a judgment signal is output from the level judgment means,
A predetermined incoming call operation is performed.

When an incoming call is detected, a predetermined voice response message is sent out, a received signal is recorded, and
When a predetermined tone signal is detected while the voice response message is being transmitted, an answering machine for reproducing and transmitting the recorded reception signal is connected, and a method of controlling a facsimile apparatus sharing a line with the answering machine. At
Switching means for switching and connecting a line to the answering machine and the main unit; control signal detecting means provided between the switching means and the answering machine for detecting a predetermined facsimile calling signal; Provided between the connection end of the line and the DC detection means for detecting the DC loop of the line, comparing the signal level of the line of the DC detection means and the signal level of the switching means of the DC detection means, When the former is greater than the latter, the level determining means for outputting a determination signal is provided. When the control signal detecting means detects the facsimile calling signal after the line is closed, the level determining means determines When a signal is output, a predetermined incoming call operation is performed.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment of the present invention will be described in detail.

FIG. 1 shows a main part of a group 3 facsimile apparatus according to an embodiment of the present invention.

In FIG. 1, lines L1 and L2 are connected to line connection terminals TL1 and TL2, and are connected to a common input terminal of a switch 2 via a DC detection circuit 1.

The normally closed switching output terminal of the switch 2 is connected via a band rejection filter circuit 3 to terminals PL1 and PL2 for connecting an external telephone. Terminal PL
An answering machine 4 is connected to PL1 as an external telephone.

Between the switching unit 2 and the band rejection filter circuit 3, a call signal detection circuit 5 for detecting an incoming call during standby and a predetermined facsimile call signal CNG
Is provided.

The normally open switching output terminal of the switch 2 is connected to the primary side of the transformer 7. The secondary side of the transformer 7 is connected to a group 3 facsimile modem 9 via a 2-wire / 4-wire converter 8.

The DC detection circuit 1 detects a DC loop formed when the line is closed, and a detection signal SS1 indicating a detection state of the DC loop is supplied to the system control unit 10
Has been added to

The paging signal detection circuit 5 detects a paging signal sent from a network exchange at the time of an incoming call.
The detection signal SS2 is applied to the system control unit 10.

The control signal detection circuit 6 includes, for example, 1100
Hz facsimile calling signal CN which is a single tone signal
G is detected, and the detection signal SS3 is applied to the system control unit 10.

The two-wire / four-wire converter 8 transmits a transmission signal of the group 3 facsimile modem 9 to the lines L1 and L2, and outputs a signal received from the lines L1 and L2 to the group 3 facsimile modem 9. Things.

The group 3 facsimile modem 9 is for realizing a group 3 facsimile modem function, and is a low-speed modem function (V.21 modem) for exchanging transmission procedure signals and mainly exchanging image information. High-speed modem function (V.17 modem, V.17
34 modem, V.34. 29 modem, V.29. 27ter modem etc.). The transmission / reception data is exchanged with the system control unit 10.

The system control unit 10 controls the operation of the group 3 facsimile machine, exchanges transmission / reception data with the group 3 facsimile modem 9, controls the switching of the switch 2 by the control signal SC1, and , And also controls the operation of other elements not shown (for example, a scanner or a plotter).

The band rejection filter circuit 3 cuts a signal in the frequency band of the facsimile calling signal CNG. Therefore, in this case, the answering machine 4
Does not record the received facsimile calling signal CNG.

If the answering machine 4 detects an incoming call, it records a received signal after transmitting a predetermined voice response message, and detects a predetermined tone signal while transmitting the voice response message. It has a remote control function of reproducing and transmitting the recorded reception signal. In this case, a push button signal can be used as a tone signal for remote operation.

FIG. 2 shows an example of the processing of the system control unit 10 at the time of an incoming call.

When a call is received, the system control unit 10 receives the call signal received from the exchange, and
Is detected, or if the answering machine 4 performs a calling operation and the DC detection circuit 1 detects a line connection,
(NO loop of judgments 101 and 102).

If the ringing signal detecting circuit 5 detects the ringing signal and the result of the judgment 101 becomes YES, the answering machine 4 answers the incoming call and waits until the DC detecting circuit 1 detects the line closing. (NO loop of decision 103).

The answering machine 4 responds to the incoming call, the DC detection circuit 1 detects the line connection, and the result of the judgment 103 is YE
At S, a facsimile calling signal CNG is sent from the partner terminal.
Is received and the control signal detection circuit 6 performs the detection operation, or the answering machine 4 recovers the line, and the DC detection circuit 1 disconnects the DC loop (that is, the line recovery).
Is detected or monitored (NO in determinations 104 and 105).
loop).

Facsimile calling signal CNG from the partner terminal
Is received and the control signal detecting circuit 6 performs the detecting operation, and when the result of the judgment 104 becomes YES, the switch 2 is switched to the normally open side to close the line (process 106).
A predetermined facsimile incoming call process is executed (process 10
7) When an operation such as image information reception is performed and the facsimile communication at that time is ended, the switch 2 is switched to the normally closed side to restore the line (process 108), and returns to the standby state.

When the answering machine 4 restores the line, the DC detection circuit 1 detects the break of the DC loop, and when the result of the judgment 105 becomes YES, the process returns to the standby state.

When the answering machine 4 performs a calling operation, the DC detection circuit 1 detects that the line is closed.
Is YES, the answering machine 4 restores the line and waits until the DC detection circuit 1 detects the break of the DC loop (NO loop of decision 109). Return to state.

With the above configuration, when an incoming call is detected, the answering machine 4 responds to the incoming call based on the received call signal and sends out a predetermined voice response message. At this time, if the partner terminal is a telephone, the user of the partner telephone speaks an appropriate message, and the message is recorded in the answering machine 4. Further, if the partner terminal is a facsimile machine, the terminal is sent according to a predetermined group 3 facsimile transmission procedure.
First, the partner terminal sends out a facsimile calling signal CNG, and then waits for detection of a called station identification signal CED.

The answering machine 4 responds to the incoming call,
The recording operation is performed until a predetermined time set by the user elapses, and when the recording operation is completed, the line is restored.

Therefore, when the partner terminal is a telephone, the answering machine message for the incoming call is a voice message of the user of the partner terminal. If the other terminal is a facsimile apparatus, the facsimile calling signal CNG is recorded as the answering message for the incoming call, but the facsimile calling signal CNG is removed by the band rejection filter circuit 3. The answering machine 4 records an almost silent voice message. In this case, the facsimile calling signal C
NG is detected by the control signal detection circuit 6 and the detection signal S
Since S3 is output to the system control unit 10, the system control unit 10 switches the switch 2 to the normally open side at that time to connect the line to the facsimile side, and thereafter performs a predetermined facsimile reception operation. .

Next, when the user makes a call from another telephone to the telephone number of the group 3 facsimile apparatus, the answering machine 4 answers the incoming call, sends a predetermined voice response message, and transmits the voice response message. If the user sends a specific tone signal (for example, dial 2) while listening, the answering machine 4 stops sending the voice response message at that time, and the answering machine recorded at that time Play the message.

At this time, if the partner terminal associated with the answering machine message is a telephone, the user of the terminal can listen to the voice message of the user of the partner terminal.
Further, when the partner terminal associated with the answering machine message is a facsimile machine, the user of the own terminal listens to an almost silent voice message.

Therefore, in this case, the answering machine 4
Since the facsimile calling signal CNG is removed from the signal output to the line when the answering machine message is reproduced from
The control signal detection circuit 6 does not perform the detection operation, so that a situation in which the system control unit 10 performs the line switching operation can be avoided, and the user of the own terminal can appropriately reproduce the answering message. Can be.

FIG. 3 shows a main part of a group 3 facsimile apparatus according to another embodiment of the present invention. In the figure, the same parts as those in FIG. 1 and corresponding parts are denoted by the same reference numerals.

In the figure, lines L1 and L2 are connected to line connection terminals TL1 and TL2, respectively, and are connected via a DC detection circuit 1 to a common input terminal of a switch 2.

A normally closed switching output terminal of the switching unit 2 is connected to a terminal P for connecting an external telephone via an attenuator 15.
L1 and PL2. An answering machine 4 is connected to the terminals PL1 and PL2 as an external telephone.

Further, between the switching device 2 and the attenuator 15,
A call signal detection circuit 5 for detecting an incoming call and a control signal detection circuit 6 for detecting a predetermined facsimile call signal CNG during standby are provided.

The normally open switching output terminal of the switch 2 is connected to the primary side of the transformer 7. The secondary side of the transformer 7 is connected to a group 3 facsimile modem 9 via a 2-wire / 4-wire converter 8.

The DC detection circuit 1 detects a DC loop formed when the line is closed, and a detection signal SS1 indicating the detection state of the DC loop is supplied to the system control unit 10
Has been added to

The paging signal detection circuit 5 detects a paging signal sent from a network exchange at the time of an incoming call.
The detection signal SS2 is applied to the system control unit 10.

The control signal detection circuit 6 includes, for example, 1100
Hz facsimile calling signal CN which is a single tone signal
G is detected, and the detection signal SS3 is applied to the system control unit 10.

The two-wire / four-wire converter 8 sends a transmission signal of the group 3 facsimile modem 9 to the lines L1 and L2 and outputs a signal received from the lines L1 and L2 to the group 3 facsimile modem 9. Things.

The group 3 facsimile modem 9 is for realizing a group 3 facsimile modem function. The group 3 facsimile modem 9 is a low-speed modem function (V.21 modem) for exchanging transmission procedure signals, and mainly exchanges image information. High-speed modem function (V.17 modem, V.17
34 modem, V.34. 29 modem, V.29. 27ter modem etc.). The transmission / reception data is exchanged with the system control unit 10.

The system control unit 10 controls the operation of the group 3 facsimile apparatus, exchanges transmission / reception data with the group 3 facsimile modem 9, controls the switching of the switch 2 by the control signal SC1, and , And also controls the operation of other elements not shown (for example, a scanner or a plotter).

The level comparator 16 compares the signal level at the line-side input terminal of the attenuator 15 with the signal level at the external telephone-side input terminal of the attenuator 15, and the former is larger than the latter. It outputs a detection signal SS4 indicating the state of whether or not the detection is made, and the detection signal SS4 is applied to the system control unit 10.

When the answering machine 4 detects an incoming call, it records a received signal after transmitting a predetermined voice response message, and detects a predetermined tone signal while transmitting the voice response message. It has a remote control function of reproducing and transmitting the recorded reception signal. In this case, a push button signal can be used as a tone signal for remote operation.

FIG. 4 shows an example of the processing of the system control unit 10 at the time of an incoming call in this case.

When a call is received, the system control unit 10 receives the call signal received from the exchange, and
Is detected, or if the answering machine 4 performs a calling operation and the DC detection circuit 1 detects a line connection,
Is monitored (NO loop of judgments 201 and 202).

When the ringing signal detecting circuit 5 detects the ringing signal and the result of the judgment 201 becomes YES, the answering machine 4 answers the incoming call and waits until the DC detecting circuit 1 detects the line closing. (NO loop of decision 203).

The answering machine 4 responds to the incoming call, the DC detection circuit 1 detects the line connection, and the result of the judgment 203 is YE
At S, the facsimile calling signal CNG is detected,
When the control signal detection circuit 6 performs the detection operation or when the answering machine 4 recovers the line, the DC detection circuit 1
Detects whether the DC loop has been disconnected (that is, line restoration) (NO loop of determinations 204 and 205).

When the facsimile calling signal CNG is detected,
When the control signal detection circuit 6 performs the detection operation,
When the result of (1) is YES, there are two cases. The facsimile calling signal CNG is received from the partner terminal, and the facsimile calling signal CNG is included in the answering machine message reproduced from the answering machine 4. Here, in the former case, the signal level at the line-side input terminal of the attenuator 15 becomes higher than the signal level at the answering machine side input terminal of the attenuator 15, and in the latter case, The signal level at the line-side input terminal of the attenuator 15 becomes lower than the signal level at the input terminal of the attenuator 15 on the answering machine side.

Therefore, the signal level of the input terminal on the line side of the attenuator 15 is changed by the detection signal SS4 output from the level comparator 16 to the input terminal of the external telephone side (the answering machine side) of the attenuator 15. If it is notified that the signal level is higher than the signal level (the result of the determination 206 is YES), the switch 2 is switched to the normally open side to close the line (switch line) (process 207), and a predetermined facsimile The incoming call process is executed (process 208), and operations such as image information reception are performed. When the facsimile communication at that time ends, the switch 2 is switched to the normally closed side to restore the line (process 209).
Return to the standby state.

The signal level of the line-side input terminal of the attenuator 15 is changed by the detection signal SS4 output from the level comparator 16 to the input terminal of the external telephone side (the answering machine side) of the attenuator 15. If it is notified that the signal level is lower than the signal level (the result of decision 206 is NO), decision 2
Move to 05.

When the answering machine 4 restores the line, the DC detection circuit 1 detects the break of the DC loop, and when the result of the judgment 205 becomes YES, the process returns to the standby state.

Further, when the answering machine 4 performs a calling operation, the DC detection circuit 1 detects the line connection, and
Is YES, the answering machine 4 restores the line and waits until the DC detection circuit 1 detects the break of the DC loop (NO loop of the decision 210). Return to state.

With the above configuration, when an incoming call is detected, the answering machine 4 responds to the incoming call based on the received call signal and sends out a predetermined voice response message. At this time, if the partner terminal is a telephone, the user of the partner telephone speaks an appropriate message, and the message is recorded in the answering machine 4. Further, if the partner terminal is a facsimile machine, the terminal is sent according to a predetermined group 3 facsimile transmission procedure.
First, the partner terminal sends out a facsimile calling signal CNG, and then waits for detection of a called station identification signal CED.

After answering the incoming call, the answering machine 4
The recording operation is performed until a predetermined time set by the user elapses, and when the recording operation is completed, the line is restored.

Therefore, when the partner terminal is a telephone, the answering machine message for the incoming call is a voice message of the user of the partner terminal. If the other terminal is a facsimile machine, the answering machine message for the incoming call is recorded with a facsimile calling signal CNG. In this case, the facsimile calling signal CNG is detected by the control signal detection circuit 6, and the detection signal SS3 is output to the system control unit 10.
At that time, the system control unit 10 switches the switch 2 to the normally open side to connect the line to the facsimile side, and thereafter,
A predetermined facsimile reception operation is performed.

Next, when the user makes a call from another telephone to the telephone number of the group 3 facsimile apparatus, the answering machine 4 answers the incoming call, sends out a predetermined voice response message, and transmits the voice response message. If the user sends a specific tone signal (for example, dial 2) while listening, the answering machine 4 stops sending the voice response message at that time, and the answering machine recorded at that time Play the message.

At this time, if the partner terminal associated with the answering machine message is a telephone, the user of the own terminal can hear the voice message of the user of the partner terminal.
Further, when the partner terminal associated with the answering machine message is a facsimile device, the user of the terminal itself hears the facsimile calling signal CNG.

The facsimile calling signal CNG is detected by the control signal detecting circuit 6, and the control signal detecting circuit 6 outputs the detection signal SS3. In this case, as described above, the level comparator Since the signal level on the line side is notified by the detection signal SS4 of 16 that the signal level on the line side is lower than the signal level on the answering machine, the system control unit 10 keeps the switch 2 as it is, and Can remotely control the answering machine 4 subsequently.

As described above, in this embodiment, the facsimile calling signal CNG detected by the detection signal SS4 of the level comparator 16 is received from the line side or reproduced from the answering machine 4 Since the facsimile calling signal CNG is included in the answering machine message reproduced by the user remotely operating the answering machine 4, the system control unit 10 A situation in which a switching operation is performed can be avoided, and the user of the own terminal can reproduce the answering message appropriately.

Incidentally, in the above-described embodiment, the switching device 2
An attenuator 15 is provided between the telephone and the answering machine 4 to determine whether the detected facsimile calling signal CNG is received from the line side or reproduced from the answering machine 4. It has been determined that this attenuator 1
The same determination operation as described above can be performed using a circuit element having a function equivalent to that of the fifth embodiment.

FIG. 5 shows a main part of a group 3 facsimile apparatus according to still another embodiment of the present invention. In this figure, the same parts as those in FIG. 3 and corresponding parts are denoted by the same reference numerals.

In the figure, lines L 1 and L 2 are connected to line connection terminals TL 1 and TL 2, respectively, and are connected via a DC detection circuit 1 to a common input terminal of a switch 2.

A normally closed switching output terminal of the switching device 2 is connected via attenuator 15 to a terminal P for connecting an external telephone.
L1 and PL2. An answering machine 4 is connected to the terminals PL1 and PL2 as an external telephone.

Further, between the switch 2 and the attenuator 15,
A call signal detection circuit 5 for detecting an incoming call and a control signal detection circuit 6 for detecting a predetermined facsimile call signal CNG during standby are provided.

The normally open switching output terminal of the switch 2 is connected to the primary side of the transformer 7. The secondary side of the transformer 7 is connected to a group 3 facsimile modem 9 via a 2-wire / 4-wire converter 8.

The DC detection circuit 1 detects a DC loop formed when the line is closed, and a detection signal SS1 indicating the detection state of the DC loop is supplied to the system control unit 10
Has been added to

The paging signal detection circuit 5 detects a paging signal sent from the exchange on the network when a call is received.
The detection signal SS2 is applied to the system control unit 10.

The control signal detection circuit 6 includes, for example, 1100
Hz facsimile calling signal CN which is a single tone signal
G is detected, and the detection signal SS3 is applied to the system control unit 10.

The two-wire / four-wire converter 8 transmits a transmission signal of the group 3 facsimile modem 9 to the lines L1 and L2, and outputs a signal received from the lines L1 and L2 to the group 3 facsimile modem 9. Things.

The group 3 facsimile modem 9 is for realizing a group 3 facsimile modem function, and exchanges transmission procedure signals (low speed modem function (V.21 modem)) and mainly exchanges image information. High-speed modem function (V.17 modem, V.17
34 modem, V.34. 29 modem, V.29. 27ter modem etc.). The transmission / reception data is exchanged with the system control unit 10.

The system control section 10 controls the operation of the group 3 facsimile apparatus, exchanges transmission / reception data with the group 3 facsimile modem 9, controls the switching of the switch 2 by the control signal SC1, and , And also controls the operation of other elements not shown (for example, a scanner or a plotter).

The level comparator 16 compares the signal level of the input terminal on the line side of the DC detection circuit 1 with the signal level of the input terminal on the switch side (ie, the answering machine side) of the DC detection circuit 1. Then, a detection signal SS4 indicating whether the former is larger than the latter is output, and the detection signal SS4 is applied to the system control unit 10.

When the answering machine 4 detects an incoming call, it records a received signal after transmitting a predetermined voice response message, and detects a predetermined tone signal while transmitting the voice response message. It has a remote control function of reproducing and transmitting the recorded reception signal. In this case, a push button signal can be used as a tone signal for remote operation.

In this case, since the DC detection circuit 1 includes an attenuating element of the signal, the signal level of the line-side input terminal of the DC detection circuit 1 of the received signal is the same as that of the input terminal of the answering machine. As for the transmission signal, the signal level at the line-side input terminal of the DC detection circuit 1 becomes lower than the signal level at the input terminal of the answering machine.

In this case, the system control unit 10
The processing of FIG. 4 is executed.

With the above configuration, when an incoming call is detected, the answering machine 4 responds to the incoming call based on the received call signal and sends out a predetermined voice response message. At this time, if the partner terminal is a telephone, the user of the partner telephone speaks an appropriate message, and the message is recorded in the answering machine 4. Further, if the partner terminal is a facsimile machine, the terminal is sent according to a predetermined group 3 facsimile transmission procedure.
First, the partner terminal sends out a facsimile calling signal CNG, and then waits for detection of a called station identification signal CED.

After answering the incoming call, the answering machine 4
The recording operation is performed until a predetermined time set by the user elapses, and when the recording operation is completed, the line is restored.

Therefore, when the partner terminal is a telephone, the answering machine message for the incoming call is a voice message of the user of the partner terminal. If the other terminal is a facsimile machine, the answering machine message for the incoming call is recorded with a facsimile calling signal CNG. In this case, the facsimile calling signal CNG is detected by the control signal detection circuit 6, and the detection signal SS3 is output to the system control unit 10.
At that time, the system control unit 10 switches the switch 2 to the normally open side to connect the line to the facsimile side, and thereafter,
A predetermined facsimile reception operation is performed.

Next, when the user makes a call from another telephone to the telephone number of the group 3 facsimile machine, the answering machine 4 answers the incoming call, sends out a predetermined voice response message, and transmits the voice response message. If the user sends a specific tone signal (for example, dial 2) while listening, the answering machine 4 stops sending the voice response message at that time, and the answering machine recorded at that time Play the message.

At this time, if the partner terminal associated with the answering machine message is a telephone, the user of the own terminal can hear the voice message of the partner terminal user.
Further, when the partner terminal associated with the answering machine message is a facsimile device, the user of the terminal itself hears the facsimile calling signal CNG.

The facsimile calling signal CNG is detected by the control signal detection circuit 6 and the control signal detection circuit 6 outputs a detection signal SS3. In this case, the detection signal SS4 of the level comparator 16 is output. Is notified that the signal level on the line side is lower than the signal level on the answering machine, the system control unit 10 keeps the switch 2 intact, and the user of the own terminal continues to use the answering machine. The device 4 can be remotely controlled.

As described above, in this embodiment, the facsimile calling signal CNG detected by the detection signal SS4 of the level comparator 16 is received from the line side or reproduced from the answering machine 4 If the facsimile calling signal CNG is included in the answering message reproduced by the user operating the answering machine 4 remotely, the system control unit 10 switches the line. A situation in which an operation is performed can be avoided, and the user of the own terminal can reproduce the answering message appropriately.

In the above-described embodiment, only the operation of playing the answering machine message has been described as the remote operation contents of the answering machine, but the present invention is similarly applied to the case where other remote operation contents can be performed. can do.

[0094]

As described above, according to the present invention,
Since the facsimile calling signal is removed from the signal output from the answering machine to the line when the answering machine message is reproduced, the situation where the facsimile apparatus detects the facsimile calling signal and performs the line switching operation is avoided. This makes it possible for the user of the terminal to play back the answering message appropriately.

Further, since it is determined whether the detected facsimile calling signal is received from the line side or reproduced from the answering machine, the user sets the answering machine to the answering machine. When the facsimile calling signal is included in the answering machine message reproduced by remote operation, it is possible to avoid a situation in which the facsimile apparatus performs a line switching operation, and the user of the own terminal can
There is also an effect that the answering machine message can be reproduced appropriately.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a main part of a group 3 facsimile apparatus according to one embodiment of the present invention.

FIG. 2 is a flowchart illustrating an example of a process performed by a system control unit when an incoming call is received.

FIG. 3 is a block diagram showing a main part of a group 3 facsimile apparatus according to another embodiment of the present invention.

FIG. 4 is a flowchart showing another example of the processing of the system control unit when an incoming call is received.

FIG. 5 is a group 3 according to still another embodiment of the present invention.
FIG. 2 is a block diagram showing a main part of the facsimile machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 DC detection circuit 3 Band rejection filter 4 Answering machine 5 Ringing signal detection circuit 6 Control signal detection circuit 10 System control unit 15 Attenuator 16 Level comparator

Claims (3)

[Claims] When an incoming call is detected, a received signal is recorded after transmitting a predetermined voice response message, and when a predetermined tone signal is detected while transmitting the voice response message, the recorded received signal is reproduced. A method of controlling a facsimile apparatus which is connected to an answering machine for sending and answering, and which shares a line with the answering machine, comprising: switching means for switching and connecting a line to the answering machine and the main unit; A control signal detecting means provided between the telephone device and a predetermined facsimile calling signal, and interposed between the switching means and the answering machine to cut a signal in a frequency band of the facsimile calling signal After the line is closed, the control signal detecting means outputs the facsimile calling signal. When exiting, the control method of a facsimile apparatus and performs a predetermined incoming call operation. 2. When an incoming call is detected, a received signal is recorded after transmitting a predetermined voice response message, and when a predetermined tone signal is detected while transmitting the voice response message, the recorded received signal is reproduced. A method of controlling a facsimile apparatus which is connected to an answering machine for sending and answering, and which shares a line with the answering machine, comprising: switching means for switching and connecting a line to the answering machine and the main unit; A control signal detecting means provided between the switching means and the answering machine, provided between the switching means and the answering machine; and a control signal detecting means for detecting a predetermined facsimile calling signal. An attenuator for attenuating the exchanged signal level; a signal level on the switching means side of the attenuator; and an answering machine of the attenuator. Comparing the signal levels of the two sides, and when the former is greater than the latter, the apparatus includes level determining means for outputting a determination signal.After the line is closed, the control signal detecting means detects the facsimile calling signal. A predetermined incoming call operation is performed when the determination signal is output from the level determination means. 3. When an incoming call is detected, a reception signal is recorded after transmitting a predetermined voice response message, and when a predetermined tone signal is detected while transmitting the voice response message, the recorded reception signal is reproduced. A method of controlling a facsimile apparatus which is connected to an answering machine for sending and answering, and which shares a line with the answering machine, comprising: switching means for switching and connecting a line to the answering machine and the main unit; Control signal detection means provided between the telephone device and detecting a predetermined facsimile calling signal; and DC detection means provided between the switching means and the connection end of the line to detect a DC loop of the line. Comparing the signal level on the line side of the DC detection means with the signal level on the switching means side of the DC detection means, and the former is larger than the latter. In this case, a level determination unit that outputs a determination signal is provided. When the control signal detection unit detects the facsimile calling signal after the line is closed, the determination signal is output from the level determination unit. And performing a predetermined incoming call operation.