JPH01241965A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To attain talking and communication even a facsimile equipment receives a call even with a high line importance even if the line receives a call later by establishing each application of each trunk line when it differs from each other and giving priority to the application of a trunk line when the application of each trunk line is the same. CONSTITUTION:For example, when talking, a communication using an external line 2a has a higher priority than the talking communication using an extension 2b, and when a incoming call comes from the external line during talking with the extension 2b, the 1st hybrid circuit 6 discriminates whether the object of the call is talking or communication and communication is implemented in case of the communication and it is informed to the operator in case of talking. That is, in case of talking, a bell of a telephone set 4 rings to inform it to the operator and in case of communication, the communication using the extension 2b is interrupted once and the communication based on the incoming call from the external line 2a is applied and then the talking is started by the intermitted extension 2b. Thus, the talking and communication is applied with high line importance even if the line receives a call later.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a facsimile device.

[Prior Art] A conventional facsimile machine that has one communication means and one telephone call means and accommodates two central office lines generally accommodates two central office lines: an outside line and an internal line. . In other words, an internal line is used for calls and communications within the company, and an external line is used for calls and communications outside the company.

If a call is received on the other central office line while one central office line is in use, a state other than the in-use state is selected. That is, if a call is received on the remaining office line while a certain office line is in a talking state, the system automatically communicates with the office line that received the call later and proceeds to the communication mode. Conversely, if a call is received on the remaining office line while a certain office line is in a communication state, the call will be manually received for the office line that received the call later, and the telephone will ring.

[Problems to be Solved by the Invention] In the above conventional example, even if the other party requests a call on the remaining central office line while a call is not very important,
There is a problem in that the call is forced to automatically receive the call, and the other party cannot receive the call. Similarly, there is a problem in that even if the other party makes a communication request to the remaining office line while a less important communication is being carried out, the other party cannot communicate with the other party.

When a call is received from the other lines while communicating or calling on one line, if the line that received the call later has a higher importance, the usage of the call that arrived first and the call that came later It is an object of the present invention to provide a facsimile device that can be used for subsequent calls and communications even if the intended use is the same.

[Means for Solving the Problems] The present invention provides a facsimile machine having one communication means and one calling means and accommodating two office lines, in which the uses of the above-mentioned office lines (calling use or communication use) are different from each other. When the usage is different, each usage is established, and when the usage of each office line is the same, priority is given to the usage of one of the office lines.

[Function] In a facsimile machine that has (1) a communication means and one telephone call means and accommodates two office lines, when the uses of each of the above-mentioned office lines are different from each other, each use is established, and each of the above-mentioned stations When lines are used for the same purpose, priority is given to the usage of one of the office lines, so if the line that received a later call is more important, the call or communication that arrived later can be carried out.

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

This embodiment has one communication function and one calling function, and one extension line and one outside line are connected. Set that priority high. Furthermore, when one central office line is in use and a call arrives from the other central office line, it is possible to automatically identify whether the incoming call is a call or a communication.

When a call is received from an outside line while talking on an extension line, the present invention determines whether the purpose of the incoming call is a call or a communication. Notify operator. If you receive a call from an outside line while you are communicating on an extension line, it is determined whether the purpose of the incoming call is a call or communication, and if it is a call, the telephone bell rings and the operator is able to talk, and whether it is communication or not. For example, communication using an extension is temporarily interrupted, communication is performed based on an incoming call from an outside line, and then a call is started using the interrupted extension. Normally, extension lines are often used under a leased line contract, so -
Even if communication is interrupted once and then restarted, the cost will not increase. Furthermore, when communicating via an extension, the received data is stored in the memory until one communication is completed, and is recorded by the recording means after one communication is completed. This is to make it easier to organize recorded information when extension communication is interrupted due to an incoming outside call.

On the other hand, if there is an incoming call from an extension while talking on an outside line, it is determined whether the incoming call is a communication or a call, and if it is a communication, the line changes to communication mode, and if it is a communication, the line is released. If you receive a call from an extension while communicating on an outside line, the system determines whether the incoming call is a call or a call, rings the telephone bell if it is a call, and releases the line if it is a call.

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

The NCU (network control unit) 2 accommodates an outside line 2a and an extension line 2b, and controls the connection of each communication line.
This is a device that switches to a data communication path and maintains a loop. Outside line 2a is a general telephone line,
Extension 2b is a general dedicated line. The NCU 2 receives an external line control signal from the control circuit 46 when the external line control signal is 0. 1, 2.3, the outside line 2a is connected to an unconnected telephone 4, a first hybrid circuit 6 which is a circuit for identifying whether an incoming call from the outside line 2a is a call or a communication, and a first hybrid circuit 6 belonging to a facsimile machine. 2 hybrid circuit 12. In a normal state, the outside line 2a is not connected. When the NCU 2 detects (does not detect) a 16 Hz calling signal from the outside line 2a, it sets the outside line incoming signal to 1 (O) and sends it to the control circuit 46.

The NCU 2 receives the extension control signal from the control circuit 46.
,? , 3, the extension 2b is disconnected and connected to the telephone 4, the first hybrid circuit 6, and the second hybrid circuit 12, respectively. In a normal state, the outside line 2a is not connected. Further, when the NCU 2 detects (does not detect) a 16 Hz calling signal from the extension 2b, the NCU 2 sets the extension incoming signal to 1 (O) and sends it to the control circuit 46. here,
The outside line control signal and the extension line control signal are never 1.2.3 at the same time. For outside line 2a and extension line 2b, NCU2 is the first
When connected to the hybrid circuit 6 or the second hybrid circuit 12, a DC loop is formed. Further, the outside line 2a and the extension line 2b are connected to the telephone set 4 via the NCU 2, and a DC loop is formed when the handset is up.

The DC loop of the outside line 2a and the extension line 2b is open at times other than the above.

When the selection signal transmission start pulse is generated from the control circuit 46, the NCU 2 inputs the call control signal, and if the call control signal from the control circuit 46 is 1.0, the NCU 2 inputs the call control signal to the outside line 2.
a, a selection signal (output signal of the calling circuit 38) is sent to the extension line 2b, and a call is made to the outside line 2a and extension line 2b.

The first hybrid circuit 6 is a circuit that separates a transmission system signal and a reception system signal. The sound generation circuit 8 is a circuit that sends various sounds to the transmitting side, and when it receives a sound generation start pulse, it inputs a selection signal of the sound to be generated, and this selection signal of the sound to be generated is 0.1.2. When .3, respectively,
"I'm calling you", "I called you but you're not home", "
A voice message such as "You are currently using the telephone" or "You are currently using the fax machine" is transmitted.

The tonal signal detection circuit 10 detects signals of 462 Hz, 1090 Hz, 1650 Hz, 2100 Hz and no tonal signal.
0.1.2.3 respectively when detecting Hz.
．． Outputs 4.5.

The second hybrid circuit 12 is a circuit that separates a transmission system signal and a reception system signal, and the reading circuit 14 is a circuit that separates a transmission system signal and a reception system signal.
It consists of an image sensor such as a charge-coupled device (charge-coupled device) and an optical system, and it sequentially reads image signals for one line in the main scanning direction from the transmitted document, creates and outputs a signal string representing binary values of white and black. be.

The encoding circuit 16 is a circuit that outputs encoded data (MH (Modified Huffman) encoding or MR (Modified Read) encoding). The modulator 18 is
This circuit performs modulation based on the well-known CCITT recommendations 1.27ter (differential phase modulation) or .29 (quadrature modulation). ■21 modulator 20 is the well-known CCITT recommendation V2
This circuit performs modulation based on 1, and inputs a procedure signal from the control circuit 46, modulates it, and outputs it. The transmission interrupt signal sending circuit 22 is a circuit that sends a transmission interrupt signal (for example, a 3000 Hz tonal signal) to the adding circuit 24 when the signal level from the control circuit 46 is 1.

The transmission interruption signal detection circuit 26 is a circuit that outputs a signal of 1 when it detects a transmission interruption signal (for example, a 3000 Hz tonal signal) from the control circuit 46. V21
The demodulator 28 is a circuit that performs demodulation based on the known CCITT recommendation V21. The V29 demodulator 30 uses the well-known CCITT recommendation V27ter (differential phase modulation) or V29 demodulator 30.
This circuit performs demodulation based on X.29 (orthogonal modulation). The memory circuit 32 stores the signal from the V29 demodulator 30 when receiving the write enable signal from the control circuit 46, and outputs the stored demodulated data when receiving the read enable signal from the control circuit 46. It is something to do. The decoding circuit 34 demodulates the signal from the V29 demodulator 30 when the signal from the control circuit 46 is 0, and demodulates the signal from the memory circuit 32 when the signal from the control circuit 46 is 0. It is a circuit. The recording circuit 36 is a circuit that inputs the decoded data from the decoding circuit 34 and sequentially records white and black signals line by line.

The mode detection circuit 40 is set to manual incoming call mode, automatic identification mode (a mode that closes the DC circuit and automatically identifies whether the purpose of the calling party's call is a call or communication), and automatic incoming call mode. This is a circuit that detects whether the When set to manual call reception mode, automatic identification mode, and automatic call reception mode, Oll and 2 are output, respectively.

The bell sound generating circuit 42 is a circuit that generates a bell sound in order to notify the operator that there is a call to the telephone set 4. When the signal level from the control circuit 46 is 1 (0), the bell sound generation circuit 42 generates (does not generate) a bell.

The incoming call from outside line display circuit 44 is a display circuit that notifies the operator when there is an incoming call from outside line 2a while a call is being made using extension line 2b.

Next, the control circuit 46 will be explained.

First, if the manual incoming call mode is set, the external line 2
If both extensions a and 2b are not used for telephone calls, when a ringing signal is received, the line from which the ringing signal came is connected to the telephone set 4 and the bell rings. When external line 2a is used for the purpose of making a call and a ringing signal is received on extension 2b,
It has no control over that call signal. When the extension line 2b is used for the purpose of making a call and a call signal is received on the outside line 2a, a message indicating "incoming call from outside line" is displayed.

When the operator hangs up the extension call, the bell of the telephone 4 rings due to the incoming call from the outside line 2a.

Next, if the automatic incoming call mode is set, the external line 2
When neither a nor extension 2b is used for communication purposes (both are not connected to the second hybrid circuit 12 and no data is stored in the memory circuit 32), when a call signal is received, the external line When a call arrives at 2a, communication is performed using the outside line 2a, and the received data is directly recorded by the recording circuit 36 without being stored in the memory circuit 32. When an incoming call is received on extension 2b, communication is performed using extension 2b, the received data is stored in the memory circuit 32, and after the communication is completed, recording of data by communication via extension 2b is started. In automatic call receiving mode, external line 2a
is being used for communication purposes (i.e., when the external line 2a is connected to the second hybrid circuit 12), the external line 2b is connected to the second hybrid circuit 12.
When a call signal is received, there is no control over the call signal. When extension 2b is being used for communication purposes (that is, when extension 2b is connected to the second hybrid circuit 12), if a call signal is received on external line 2a, communication via the extension is interrupted and the incoming external line is stopped. communicate. In this case, the data received from the outside line 2a is not stored in the memory circuit 32, but is directly recorded by the recording circuit 36. After the communication due to the incoming external line is completed, a call is automatically made to extension 2b to carry out the remaining communication.

While the recording circuit 36 is recording the communication data from the extension line stored in the memory circuit 32, when a paging signal is received on the outside line 2a, communication by the incoming external line is started, and the data received by the incoming external line is stored in the memory circuit 32. Store in. After the communication due to the incoming external line is completed, the recording circuit 36 records the communication data stored in the memory circuit 32 due to the internal line. After the communication data has been recorded by this extension,
A recording circuit 36 records the communication data by the outside line which is stored in the memory circuit 32.

If you receive an instruction to interrupt transmission during extension communication (for example, when a 3300Hz transmission interruption signal is detected during transmission, or when you are notified of transmission interruption by a procedure signal during reception), the extension Interrupts communication and enters standby mode.

Next, an automatic identification mode (a mode in which the DC circuit is closed and it is determined whether the purpose of the calling party's call is a call or a communication) will be explained.

This mode automatically identifies whether the purpose is a call or communication when there is a ringing signal on the outside line 2a or extension 2b.If the purpose is communication, the above-mentioned automatic call receiving mode operates. It is similar to The line from which the calling signal has come is connected to the first hybrid circuit 6, and it is determined whether it is a call or a communication.

If there is a paging signal from the extension while the outside line 2a is being used for a call, and the other party calls for the purpose of a call, after transmitting the message to the other party, the extension... Open b. If a ringing signal is generated on the outside line 2a while the extension 2b is in use for a call, and the other party calls for the purpose of a call, the incoming call from the outside line is notified to the operator by the display circuit 44, and the operator When temporarily on-hook, outside line 2a
A bell sound is generated from the bell sound generation circuit 42 in order to notify the operator that there is an incoming call. When the operator responds to this ringtone, an outside call can be made.

Next, the operation of the above embodiment will be explained.

FIGS. 2(1) to 2(11) are flowcharts showing the operation of the control circuit 46 in the above embodiment.

FIG. 3 is a flowchart showing the operation of the recording system in the above embodiment. Note that the operations shown in FIGS. 2 and 3 are multi-processed.

First, set the outside line to a disconnected state by setting the external line control signal to 0 (550), set the extension line 2b to a disconnected state by setting the extension control signal to 0 (S52), set the extension line communication necessary flag (interrupt the extension communication) , after communication on outside line 2a is completed,
A flag indicating whether or not it is necessary to automatically call and perform extension communication again is set to O (35B). and,
The flag indicating that the data from the communication on the extension line is being recorded from the memory circuit (55B should be set to 0 indicating whether the communication on the extension line has ended and the data stored in the memory circuit 32 is being recorded), flag indicating that there is data due to communication on extension 2b (when reception is selected for an incoming external line and the data due to communication on extension 2b is recorded from the memory circuit 32, the data due to the incoming external line is stored in the memory circuit 32) , a flag indicating whether data from outside line reception is stored) is set to O (S
60).

Then, 0 is added to the memory indicating the current status of extension 2b.
(S62), and 0 if extension 2b is unused.
It is set to 1 when the incoming call is determining whether it is for talking or communication purposes, it is set to 2 when the incoming call is paging an operator for talking purposes, and it is set to 3 when the incoming call is being used for talking purposes. set to 4 when used for communication. and,
O is set in the memory indicating the current status of the outside line 2a (S64). It is set to O when the outside line 2a is not in use, it is set to 1 when determining whether the incoming call is for a call or communication, and it is set to 2 when the incoming call is calling an operator for the purpose of a call. Set to 3 when used for communication, and set to 4 when used for communication. Then, the control circuit 46 sends an O signal to the bell sound generation circuit 42, and the bell sound generation circuit 42 does not generate a bell sound (366). The control circuit 46 outputs a signal level O to the display circuit 44 indicating the presence of a call from the outside line 2a, and does not display the presence of a call from the outside line 2a (368).

Based on the signal from the mode detection circuit 40, it is determined whether or not it is in the 1 manual incoming call mode (S70), and if it is in the manual incoming call mode, it is determined whether or not there is an incoming outside line call based on the outside line incoming signal (S70). (S 72).

When there is an incoming external line call, the call control signal is set to 1 to connect the external line 2a to the telephone 4 (574), and based on the external line incoming signal, it is determined whether or not there is a ringing signal on the external line 2b (S
7B). There is no ringing signal on the outside line 2a (the operator answers, the calling party stops calling), the operator no longer answers (378), and when the call ends (380), the call control signal is set to O and the outside line 2a is set to a disconnected state. Do (S 7
2).

On the other hand, when there is no incoming external call (S72), it is determined whether or not there is an incoming extension call based on the incoming extension signal (584).
, If there is an incoming extension call, connect extension 2b to telephone 4 (
386). Then, based on the extension incoming signal, extension 2b
588), extension 2.
When there is a paging signal at b (when the operator answers or the calling party makes a call), it is determined whether or not there is an incoming external line call based on the incoming external line signal (590), and if there is an incoming external line call, it sends an extension control signal. 0 and set extension 2b to a disconnected state (S92).

888.5 There is no extension ring signal and the operator does not respond.
94), when the call ends (396), the extension control signal is set to O and extension 2b is set to a non-connected state (398).
. In S96, if the call has not ended, if it is determined that there is an incoming external line call based on the incoming external line signal (S10
0), sends a level 1 signal to the display circuit 44, and connects the external line 2a.
Displays that there is an incoming call from (SIO2).

At step 370, if it is not the manual call receiving mode, it is determined whether it is the automatic call receiving mode or not (S104), and if the automatic call receiving mode is present and there is an external call receiving (S106), the mode detection circuit 40 outputs a signal of signal level 3. Then, the external line 2a is connected to the facsimile machine (3108), and the pre-procedure is performed (S110). If the automatic incoming call mode is not set in step 5104, the incoming call is connected once and the mode is set to automatically determine whether the call is for a call or for communication, and the process proceeds to step 5206. At 3106, if there is no incoming external call, the process advances to 3174.

If the previous procedure (S110) is completed and the mode is transmitting (3
112), send the image signal S 114), if the communication is finished (3116), perform the post-procedure (3118)
, the outside line control signal is set to O, and the outside line 2a is set to a disconnected state (S120).

5112, when the data is not in the transmission mode, the data from the extension communication is read from the memory, and if it is not being recorded (S122), the image signal is not received (5124), and in this case, the demodulated data is not stored in the memory, but is recorded. It is recorded by circuit 36. This operation is executed until one communication ends (5126), and the post-procedure is performed (S128).
.

At 5122, the data from the extension communication is stored in the memory 32.
If it is being recorded, the flag indicating that data via outside line communication is stored in the memory is set to 1 (5130), and the image signal is received (S132). In this case, the demodulated data is stored in the memory circuit 32. Then, the above operation is performed until one communication is completed (S13
4) Perform post-procedures (S136). Then set the outside line control signal to O and set the outside line 2a to the disconnected state.31
38), if the extension communication necessary flag is 1 (S140)
, Since the extension communication is interrupted due to an incoming external call, a call is automatically made to the other party with whom the extension communication was being made, the remaining communication is carried out, and the extension communication necessary flag is set to O (S140
．． 5144.5146.5148). Then, perform the pre-procedure (S150), and if it is the transmission mode (S152),
When communicating the image signal (3154), when the communication is finished (31
5B), perform post-procedures and set extension 2b to a disconnected state (S158.5160).

At 5156, if the communication has not ended, it is determined whether or not there is an incoming external line call based on the incoming external line signal.
62), if a transmission interruption signal is detected (S146), the transmission is interrupted by a procedure signal (3166). in this case,
The remaining data is transmitted by falling. 5
At 162, if there is an incoming external call, a procedure signal is sent to notify the other party that extension communication will be temporarily suspended.51
68), sets the extension communication necessity flag to 1 (5170), and sets the extension 2b to a non-connected state (S172).

In 5106, if there is no incoming external call and an incoming internal call (S174), other processing is performed (S176);
If an extension call is received at 174, the extension 2b is connected to the facsimile machine (3178).

At 5152, if the transmission mode is not set, an image signal is received (3180). In this case, the demodulated data is stored in the memory circuit 32. When the communication is completed (3182), post-procedures are performed to set the extension 2b to a non-connected state and set the recording flag of the data from the extension communication in the memory to 1 (S184.5186.5188). In step 5182, if there is an incoming external call while the communication is not completed (S190), a transmission interruption signal is sent for a predetermined period of time, a procedure signal is used to notify the other party of the reception interruption, and the extension communication necessary flag is set to 1. and set extension 2b to disconnected state (S192.5194.5196.
5198).

5190, when there is no incoming external line, if a transmission interruption procedure signal is detected (S200), the other party will instruct you to temporarily suspend extension communication, and extension 2b will be set to an unconnected state (S202, S 204).

The controls after 5206 are operations in a mode that automatically identifies whether the incoming call is for a call or for communication. 510
If the automatic incoming call mode is not set in step 4, the extension communication interruption request flag (a flag that notifies the extension control system control if there is an incoming call for communication purposes on an external line during extension communication)
should be set to 0 (5206), and the judgment circuit busy flag (
External line 2a or internal line? Set the flag (indicating whether or not the office line of b is connected to the first hybrid circuit 6) to O (5208), and then set the outside line control subroutine (S218).
) is called (5210), and the extension control subroutine (5210) is called.
S 340) Wokor L,.

(5212), if at least one of the outside line status and the extension line status is 1 (if an extension or an outside line is being used) (S214, S216), the process returns to 3210.

If neither the outside line nor the extension line is in use, the process returns to S70.

5218 indicates a subroutine for outside line control.

If the outside line status is O (if outside line 2a is not in use) (S220), an incoming outside line call is sent to IJ (322
2), when the judgment circuit busy flag is O (322
4), Set the outside line status to 1 3226), connect the outside line 2a to the call/communication judgment circuit 5228), set the judgment circuit busy flag to 1 3230), set timer O to 5 seconds 5232), Return. (S234). If there is no incoming external call (S222), and the judgment circuit busy flag is 1, return (S222).
36). If the outside line status is 1 (if there is an incoming call on the outside line 2a and it is being determined whether the incoming call is for a call or a communication purpose) (3238), the output signal of the tonal signal detection circuit IO When a CNG signal is detected (S240), if the extension status is 4 (if it has been determined whether extension 2b is used for communication) (S242), the outside line status is set to 4. , connect the outside line 2a to the facsimile machine, set the judgment circuit busy flag to O, and return (S24).
2.5244.5246.5248, S 250). 5
At 240, if CNG is not detected, timer O does not elapse (3252) and the extension status is 3 (extension 2b).
is being used for a call) (S25
4) Set the outside line status to 2, send out a voice saying "Calling", set timer O to 10 seconds, generate a bell sound, and return (3254 to S26).
4). If the extension status is 3 in step 5254, a message indicating that there is an incoming call from outside line 2a is displayed, and the process returns (3266.3269).

If the outside line status is 2 (a state in which it is determined whether an outside call has arrived and the operator is in a call-out mode) (S268), when the operator answers (S2
74), set the outside line status to 3, connect the outside line 2a to the telephone 4 side, set the judgment circuit busy flag to O, and return without generating a bell sound (S276 to S
284).

If the extension status is 4 in 5242, set the extension communication interruption request flag to 1 and return (S 270
．． 3272).

In 5274, when the operator does not answer and timer 0 times out (328B), a voice saying "I called you, but you are away" is sent and the outside line status is changed to O.
, the outside line 2a is set to a disconnected state, the judgment circuit busy flag is set to 0, and the process returns without generating a bell sound (3288 to S29B).

When the outside line status is 3 (a state in which it is determined whether outside line 2a is being used for a call) (5300), if the call is not completed (3302), the call returns, and if the call is ended and 2 , return to 5290.

If the outside line status is not θ~3 and the pre-procedure has not been completed (S304), the pre-procedure is performed (S306) and the process returns (S322).

When the pre-procedure is completed in 5304, if no image signal is received and the data via the extension communication is recorded from the memory (S308. 5310), the data via the communication via the external line 2a is stored in the memory circuit 32. 5314), and receives the image signal (3316). In this case, the demodulated data is stored in the memory circuit 32 and the process returns. If the data from the extension communication is not recorded from the memory in 5310, the image signal is received (5312), and the process returns. In this case, the demodulated data is not stored in the memory circuit 32 but directly recorded by the recording circuit 36.

If an image signal is received in 8308, the post-procedure is performed if the post-procedure is not completed (S318.5320).
, return.

If the post-procedure is completed in 5318, set the outside line status to O and set the outside line 2a to the unconnected state.
324, 3326), if the extension communication necessary flag is 1 (3328), the call is made automatically, the extension status is set to 4, the extension is connected to the facsimile machine, the remaining communication is started, and the extension communication necessary flag is set. Set to 0 (S
330-S 338). Note that, at 5330, since the extension communication was interrupted due to the arrival of an outside call, a call is automatically made to the other party with whom the extension communication was being made.

5340-3458 indicate subroutines for extension control.

If the extension status is O (extension 2b is unused) (S342), there is an incoming call on the extension, and if the judgment circuit busy status is O (S344.3346), the extension status is set to 1 and extension 2b is used for a call. Connect to the communication judgment circuit, set the judgment circuit busy flag to 1, and set timer O to 5.
Set to seconds and return (S348 to S356).

Extension status is 1 (a call is received on the extension and it is being determined whether the call is for a call or for communication)
If so (3358), CNG is detected, and if the outside line status is not 4 (if it is not determined whether the outside line is used for communication) (S360.5362),
The extension status is set to 4, extension 2b is connected to the facsimile machine, the judgment circuit busy flag is set to O, and the process returns (S364 to S370). If the outside line status is 4 (3362), “FA
"X is in use" is sent, the extension status is set to O, extension 2b is set to unconnected state, the judgment circuit busy flag is set to O, and the process returns (S3
72-5380).

If CNG is not detected at 5360, timer O
has not passed and the outside line status is 3 (a state in which it is determined whether outside line 2a is being used for a call) (
S382.3384), sets the extension status to 2, sends out the "ringing" tone, and sets timer 0 to 1.
Serat at 0 seconds and generate a bell sound S 386 ~ S 3
92), return. If the outside line status is 3 (
S 384), sends a voice saying "The telephone is currently in use" 3394), returns to 5374. When the extension status is 2 (a state that determines whether there is an incoming extension call and the mode is for calling an operator), (
3396), if the operator answers (3398), the extension status is set to 3, extension 2b is connected to the telephone 4 side, the judgment circuit busy flag is set to O, and the process returns without generating a bell sound (S400~ S408)
.

In 5398, when the operator does not answer, if timer O elapses (S410), a voice saying "I called you, but you are away" is sent and the extension status is changed to O.
, the extension is set to a non-connected state, and the process returns to 5404 (S412 to 5416).

If the call ends when the extension status is 3 in 5418 (S420), the process returns to 3414, and if the call does not end, the process returns.

If the pre-procedure is not completed when the extension status is not 0, 1.2.3 (S422), the pre-procedure is performed and the process returns (S424.344B). If the pre-procedure is completed, the image signal is received (3428) when the reception of the image signal is not completed (3426). In this case, the demodulated data is stored in the memory circuit 32. If the reception of the image signal has been completed (3426), if the post-procedure has not yet been completed, the post-procedure is ended and the process returns (3430.
5432).

In 8428, after receiving the image signal, if the extension communication request flag is 1 (S434), a transmission interruption signal is sent, a procedure signal is used to instruct reception interruption, and the extension communication necessity flag is set to 1; Set the extension communication interruption request flag to 0, set the extension status to O, set the extension to a non-connected state, and return (3436 to 34
48). If the extension communication request flag is 0 (S434)
, if a transmission interruption procedure signal is detected (3450),
Interrupt reception with a procedure signal.

Return to 5444 (5450.5452), while 543
If the post-procedure is completed at 0, the extension status is set to O, the extension is set to a non-connected state, the data from the extension communication is read from the memory circuit 32, the flag indicating that it is being recorded is set to 1, and the process returns. (S454-5
458).

In FIG. 3, data transmitted through extension communication is transferred to the memory circuit 3.
If the flag being recorded is 1 (5462
), the extension communication data in the memory circuit 32 is recorded by the recording circuit 36, the data from the extension communication is read from the memory circuit, and the recording flag is set to O (S 4
64-3468). If the data from the outside line communication is in the memory circuit 32 (S470), the recording circuit 36 records the outside line communication data in the memory circuit 32, and sets a flag indicating that the data from the outside line communication is in the memory circuit to 0 (3472). ~S 476).

If the flag is O in 5462, the process advances to S470, and if the data from the outside line communication is not in the memory circuit in 5470, the process returns to 5462.

Also, the facsimile machine is set to receive calls manually.
When extension 2a is used for calling purposes,
When a call signal comes to b, no control is performed on the call signal in the above embodiment. In this case, the extension 2b may be connected to the first hybrid circuit 6, and a voice message may be sent to the other party, for example, saying, "You are currently making an outside line call. Please call again in a while."

In the embodiment described above, only telephone calls are made when the manual call reception mode is set. However, the communication mode may be entered by pressing a start button or the like on the facsimile machine.

In the embodiments described above, when the mode is set to connect the call when an incoming call is received and automatically determine whether the call is intended for conversation or communication, the communication is limited to the receiving operation. A transmitting operation may be considered instead of the above receiving operation.

[Effect of the invention] According to the present invention, there is provided one communication means and one communication means, and two
In a facsimile device accommodating a central office line, if the importance of the line that received a later call is high, it is possible to carry out a call or communication that received a later call.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIGS. 2(1) to (11) and FIG. 3 are flowcharts showing the operation of the above embodiment. 2a...Outside line, 2b...Extension line, 2...NCU, 4...Telephone, 6...First hybrid circuit, 8...Sound generation circuit, 12...Second hybrid circuit, 22... Transmission interruption signal sending circuit, 32... Memory circuit, 36... Recording circuit, 40... Mode detection circuit, 46... Control circuit. Patent applicant Canon Co., Ltd. Agent Arata Yokubo - Figure 3

Claims (3)

[Claims] (1) In a facsimile machine having one communication means and one calling means and accommodating two office lines, when the usage of each of the above-mentioned office lines is different from each other, each usage is established, and the usage of each of the above-mentioned office lines is established. A facsimile device is characterized in that when the numbers are the same, priority is given to the use of one central office line. (2) The facsimile apparatus according to claim (1), wherein even if one of the central office lines is in use, it is determined whether the purpose of the incoming call on the other party's side is a call or a communication. (3) In claim (1), when a central office line with a low priority is used for a telephone call and a central office line with a high priority is selected to be used for a telephone call, the operator is notified to that effect. In addition, when a lower priority office line is being used for communication purposes and a higher priority office line is selected for communication purposes, the current communication will be temporarily interrupted. A facsimile device characterized in that it performs communication on a central office line with a high priority, and then starts the interrupted communication.