JP3568923B2 - Communication device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a communication apparatus, and more particularly to a communication apparatus that automatically selects a communication method having a more advantageous communication function when calling a communication terminal having a plurality of communication functions.
[0002]
[Prior art]
Recently, the functions of facsimile machines have been improved, and facsimile machines provided with group 4 (hereinafter, G4) communication functions have been commercialized. However, the spread of the facsimile apparatus is still the mainstream of the facsimile apparatus having the communication function of the group 3 (hereinafter, G3). Therefore, as the facsimile apparatus having the communication function of the G3 as well as the communication function of the G4. It has been commercialized.
[0003]
On the other hand, as a network capable of accommodating a facsimile apparatus having a G4 function, there is a digital circuit network such as a data network (CSPDN, PSPDN) or an ISDN (Integrated Services Digital Network).
[0004]
Therefore, in order to use both functions of G4 and G3, the facsimile apparatus connected to the data network has two ports of G4 port (data network port) and G3 port (PSTN: public telephone line network port). The facsimile apparatus connected to the ISDN has one common ISDN port for G4 and G3.
[0005]
However, in Japan, the telephone number of the terminal device connected to this digital line isNoIt has a different numbering system from the telephone number of the analog telephone line, and the G4 facsimile machine cannot use the G3 telephone number as it is, so the G4 telephone number is also set and registered.
[0006]
Other ISDN communication devices connected to the ISDN include facsimile communication devices such as facsimile storage and exchange devices and facsimile mail devices. And so on.
[0007]
Also, some facsimile communication devices such as facsimile storage and exchange devices store ISDN and PSTN, and use different lines depending on the other party. In this case, if the transmission destination is a G4 facsimile apparatus, communication is performed in the G4 mode, and if the destination is a G3 facsimile apparatus, communication is performed in the G3 mode.
[0008]
There are also a facsimile apparatus and a facsimile storage and switching apparatus having a plurality of G3 ports as well as G4 ports, and these G3 ports are connected to an extension and an outside line, and telephone numbers for the extension and the outside line are set and registered. Therefore, if the destination facsimile machine is similarly connected to the outside line of the G3 port and the extension of the G3 port, the communication cost can be reduced by selecting an extension telephone number and calling. Is possible.
[0009]
[Problems to be solved by the invention]
However, in such a conventional facsimile apparatus or facsimile storage and exchange apparatus which accommodates an ISDN line and a PSTN line and has a plurality of ports, when a G3 external line and a G3 internal line are connected to the port, communication is not possible. Since the call to the low-cost port is left to the operator's selection operation, the operator who does not know the telephone number for the extension calls the ordinary telephone number for the outside line, increasing the communication cost. Was the cause.
[0010]
Also, a facsimile machine or a facsimile storage and exchange device having a G4 port and a G3 port.BetweenAlso in the case of communication, the selection of a port is left to the operator's selection operation, so for an operator who does not know that the G4 port and the G3 port can be used together, if a call is made using the G3 port, the communication cost will also increase. There is a problem that increases.
[0011]
Accordingly, the present invention provides a communication terminal having a plurality of communication functions or a facsimile communication terminal which connects to an internal / external line or a G3 / G4 facsimile line for communication and registers telephone number information possessed for each of the communication functions and inputs and outputs A communication device that reliably reduces communication time and communication cost by having an automatic calling function for selecting and calling a telephone number of a more advantageous communication function when a called telephone number is registered. The purpose is to provide.
[0012]
[Means for Solving the Problems]
A communication device according to the present invention is a communication device that performs communication corresponding to a communication terminal connected to a plurality of lines, a line control unit that performs connection / exchange with the plurality of lines, and a communication device that is connected to the plurality of lines. Automatic calling means for automatically calling the communication terminal, wherein the automatic calling means switches from a line having a low communication cost to a communication terminal having the same destination number connected and exchanged by the line control means. In the communication device which tries to connect in order, the instructing means for instructing use and non-use of the automatic calling means is further provided.It has a configuration provided.
[0013]
With this configuration, the automatic calling function can be used as needed.
[0014]
Also, the communication device of the present invention is a communication device that performs communication corresponding to a communication terminal connected to a plurality of lines, wherein the line control means for connecting / exchanging with the plurality of lines corresponds to the same destination number. Registration means for setting and registering the telephone number information of the communication terminals connected to the plurality of lines and setting the priority of a plurality of calls, and automatically calling the communication terminals connected to the plurality of lines. Automatic calling means for calling, based on the priority of the call set in the registration means, the automatic call means to the communication terminal of the same destination number exchanged connection by the line control means In the communication device which tries to connect in order, the instructing means for instructing use and non-use of the automatic calling means is further provided.It has a configuration provided.
[0015]
With this configuration, the automatic calling function can be used as needed.
[0016]
【Example】
Hereinafter, the present invention will be specifically described based on examples.
[0017]
1 to 5Of the present inventionFIG. 1 is a diagram illustrating an example of a facsimile apparatus to which a communication device is applied.
[0018]
FIG. 1 is a block diagram of the facsimile apparatus 1. The facsimile apparatus 1 includes a CPU 2, a main memory 3, a parameter memory 4, a battery 5, a ROM 6, a character generator 7, a clock circuit 8, a DMA controller 9, an operation display device 10, The system includes a plotter 11, a scanner 12, encoding and compression devices 13, 14, a code reproducing device 15, an image processing device 16, an auxiliary storage device 17, a communication control device 18, and the like.
[0019]
The CPU (Central Processing Unit) 2 provides the ROInside M6Of the facsimile machine 1 is executed according to the program read into the main memory 3 to execute the sequence as the facsimile machine 1 and to execute the communication control processing of each invention described later. .
[0020]
The main memory 3 uses the CPU 2M6A memory area for reading the program when executing the stored program is formed.
[0021]
The parameter memory (registering means) 4 forms a memory area for storing various data required when the CPU 2 executes the program. In this embodiment, in particular, in the present embodiment, the G4-G3 external line-G3 as shown in FIG. A memory area for registering a telephone number table corresponding to an extension telephone number is formed.
[0022]
The battery 5 is a backup battery for holding the storage state of the parameter memory 3.
[0023]
A ROM (Read Only Memory) 6 stores a basic program as the facsimile machine 1 executed by the CPU 2 and a communication control program of each invention of the present application.
[0024]
The character generator 7 generates predetermined character data (character data) based on a character code received by G4 facsimile communication or the like.
[0025]
The clock circuit 8 includes an oscillator, a frequency divider, and the like, and measures time. The result of the clocking by the clock circuit 8 is used for the management processing of the transmitted document.
[0026]
The DMA controller 9 executes a DMA (Direct Memory Access) process when exchanging data between the CPU 2 and the ROM 6, the main memory 3, the parameter memory 4, and the like. The data transfer is performed only between the four memories, and the data processing of the CPU 2 is enabled even during the data transfer processing. This DMA processing is executed at a predetermined processing timing in order to improve the data processing efficiency of the CPU 2.
[0027]
The operation display device (instruction means) 10 includes various operation keys such as a numeric keypad and a start key, and also includes a display (for example, a liquid crystal display). Various commands such as a transmission operation are input from the operation keys, and are displayed on the display. Displays the contents of the command input from the operation keys and various information notified from the facsimile machine 1 to the operator. Further, in the operation display device 10, operation keys for instructing use and non-use of the automatic call processing when the communication control processing of each invention of the present application is executed are set.
[0028]
As the plotter (recording means, call information output means) 11, for example, a thermal recording device using a thermal element is used, and the plotter is used directly on thermal recording paper or through ordinary recording paper via an ink sheet. In addition to indirectly recording an image, call information and number information registered in the parameter memory 4 are recorded and output in a communication result report during communication control processing of each invention described later.
[0029]
As the scanner 12, for example, an image scanner using a CCD (Charge Coupled Device) is used, and the scanner 12 scans a document and reads image information of the document.
[0030]
The encoding and compression devices 13 and 14 compress (encode) transmission image data according to a predetermined encoding method, and the code reproducing unit 15 reproduces (decodes) received image data.
[0031]
The image processing device 16 performs image processing such as halftone processing and scaling processing of image information. When the G4 facsimile communication is the ISDN communication, the auxiliary storage device 17 stores data and the like transferred on the B channel.
[0032]
The communication control device (communication means) 18 is provided with a port (not shown) for accommodating a plurality of lines. In this embodiment, there are ports for a G4 line, a G3 external line, and a G3 internal line. The communication control device 18 has a built-in network controller for G4 and G3, a modem and the like for each port, and a line, for example, a telephone line or a digital line is connected to each port of the communication control device. The communication control unit 18 sets and releases a call by means of the G4 and G3 network control units. This network control unit is a so-called automatic origination / incoming type network control unit, which automatically performs outgoing operations and incoming calls. Perform the operation. The modem performs modulation of a transmission signal and demodulation of a reception signal. During facsimile communication, the communication control device 18 exchanges facsimile control signals with a partner G4 facsimile device or G3 facsimile device to set communication functions and exchange various control information, and performs G4 facsimile communication and G3 facsimile communication. Control.
[0033]
Next, the operation will be described.
[0034]
In the present embodiment, a communication control process when the facsimile machine 1 shown in FIG. 1 is connected in a connection form as shown in FIG. 3 will be described.
[0035]
In FIG. 3, FAX 1 and FAX 2 by the facsimile machine 1 are connected by dedicated lines (extensions) via PBXs (exchanges) of the establishments A and B, respectively, and analog lines and digital lines as external lines. Is also connected.
[0036]
The communication control process of the facsimile machine 1 in this connection mode will be described based on the flowchart shown in FIG.
[0037]
In FIG. 4, a calling number is input on the operation display unit 10 of the facsimile machine 1, a transmission mode (analog extension, analog outside line, and digital outside line) is selected, and an on / off and start button of an automatic change instruction of the call are set. When pressed (steps P1 to P4), the CPU 2 checks whether the automatic call change instruction has been turned on (step P5). If the call origination automatic change instruction is not turned on, normal call processing is performed with the input calling number (step P6). When connection of the call is confirmed (step P7), data is transmitted (step P8). The communication result is recorded as communication history information, and the communication control process ends (step P9). On the other hand, if the call cannot be connected in step P7, the redial calling process is executed up to a specified number of times (step P10). If the call cannot be connected even after executing the redial calling process up to the specified number of times, the call is made. The process is interrupted, the information of the call failure is recorded in the communication history information, and the communication control process ends (step P9).
[0038]
On the other hand, if the automatic call change instruction is turned on in step P5, it is checked whether the call number is a call number registered in the parameter memory 4 (step P11). If it is not registered, the normal calling process of steps P6 to P10 is executed, and if it is registered, first, as shown in FIG. A call is made using the calling number for the dedicated line (step P12), and the connection of the call is confirmed (step P13). When the call is connected, data is transmitted (step P14), and it is checked whether or not an error has occurred during modem training (step P15). If an error has occurred, an error report that records a series of calling numbers registered in the parameter memory 4 of the called facsimile communication terminal is output from the plotter 11 (step P16), and the communication result is stored in the communication history. The information is recorded in the information and the communication control process ends (step P9). If there is no error at the time of training, the communication result is recorded in the communication history information, and the communication control process ends (step P9).
[0039]
On the other hand, if the call cannot be connected through the G3 extension in step P13, a call is made to the same destination with the G4 external line calling number to confirm the call connection (steps P17 and P18). When the call is connected, the data is sent out by the processes of steps P14 to P16, an error check at the time of modem training is performed, and an error report is output. The communication result is recorded in the communication history information to execute the communication control process. The process ends (step P9). If the call cannot be connected even with the G4 external line, the call is made with the calling number for the G3 external line and the call connection is confirmed (steps P19 and P20). When the call is connected, the data is sent out by the processes of steps P14 to P16, an error check at the time of modem training is performed, and an error report is output. The communication result is recorded in the communication history information to execute the communication control process. The process ends (step P9).
[0040]
If the call cannot be connected, the redialing process from the above-mentioned steps P12 to P20 from the G3 extension to the G3 outside line is executed up to a specified number of times (step P21). Sends out the data through the processes of steps P14 to P16, executes an error check during modem training and outputs an error report, records the communication result in communication history information, and ends the communication control process (step P9). ). If the call cannot be connected even after executing the redial call processing up to the specified number of times, the call processing is interrupted, the information of the call failure is recorded in the communication history information, and the communication control processing ends (step P9). .
[0041]
As described above, the communication control process is performed in the facsimile machine 1 so that the facsimile machine as shown in FIG.One by oneThe G3 extension, the G4 exterior, and the G3 exterior are connected by a plurality of lines, and the calling process is performed in order from the call number registered in the parameter memory 4 corresponding to each line in ascending order of communication cost. Thus, the communication cost can be reliably reduced.
[0042]
When a call connection by redialing fails or when an error occurs in modem training after the call connection, the calling number registered in the parameter memory 4 of the calling destination is an error report or Since the information is recorded and output in the communication history information, the operator of the facsimile machine 1 can confirm the error report and the communication history information to grasp the state of the call destination and take immediate action. Since the redialing process is executed on the first call, the re-call operation by the operator can be omitted.
[0043]
Steps P12 to P21 in the dashed line in the flowchart of FIG. 4 can be replaced with the flowchart shown in FIG. 5, and this process will be described. In FIG. 5, the same step processing portions as those in the flowchart of FIG. 4 are denoted by the same step numbers.
[0044]
That is, in the present embodiment, the only difference is that step P22 and step P23 surrounded by a circle are added, and a redialing process is added when a call is made by a G3 extension and a call is made by a G4 outside line, respectively. A redial calling process is executed each time an outside line is called.
[0045]
Therefore, it is possible to save the trouble of the operator's re-call operation and shorten the interval of the redial call processing.
[0046]
6 to 10IsFacsimile storage and switching equipmentAn example ofFIG.
[0047]
Figure 61 is a block diagram of a facsimile storage and exchange apparatus 21. The facsimile storage and exchange apparatus 21 includes a system control unit 22, an operation unit 23, a storage unit 24, a line exchange control unit 25, a PSTN line I / F unit 26, an ISDN line I / F It comprises an F unit 27, G3 communication control units AN1 to ANn, G4 communication control units DN1 and DN2, and the like.
[0048]
The system control unit 22 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The ROM stores a basic program as the facsimile storage and exchange device 21 and a later-described application. A communication control processing program and the like of each invention are stored. The system control unit 22 controls each unit of the facsimile storage / exchange apparatus 21 according to a program in the ROM to execute a sequence as the facsimile storage / exchange apparatus 21, and executes a communication control process of each invention of the present application.
[0049]
The operation unit 23 is provided with a numeric keypad, a one-touch key, a start key, other operation keys, and the like, and is provided with a display unit, and various commands and the like are input by the operation keys. Command and various information notified from the facsimile storage and exchange device 21 to the operator are displayed.
[0050]
The storage unit (storage unit, registration unit) 24 is configured by a hard disk or the like, and operates under the control of the system control unit 22. The storage unit 24 stores a message transmitted from the PSTN lines P1 to Pn via the PSTN line I / F unit 26 and the ISDN line DL via the extension lines I1 to In and the ISDN line I / F unit 27 and a service of the message. It stores various service information and the like necessary for the server. In addition, in the storage unit 24, in particular,This exampleThen, a telephone number table corresponding to the telephone numbers of G4-G3 outside line-G3 extension as shown in FIG. 7 is registered, and in this table, the call priorities are set as A and B.
[0051]
As the setting of the call priority,
For example, in the case of A, G3 extension → G3 exterior → G4 exterior,
In the case of B, G3 external line → G3 internal line → G4 external line.
[0052]
Also, when making a call in the G3 communication control units AN1 to ANn,
For example, it is assumed that extensions I1 to In and PSTN lines P1 to Pn are used by a predetermined extension flag signal.
[0053]
The line exchange control unit (line control means) 25 exchanges connections between the extensions I1 to In and the PSTN lines P1 to Pn, exchanges extensions between the extensions I1 to In, and exchanges extensions I1 to In via the PSTN line I / F unit 26. And connection control of the PSTN lines P1 to Pn to the G3 communication control units AN1 to ANn.
[0054]
The PSTN line I / F unit 26 is connected to PSTN (Public Line Network) lines P1 to Pn and extensions I1 to In as external lines, and a facsimile terminal is connected to each extension I1 to In. As these facsimile terminals, those having a G3 mode communication function are connected.
[0055]
The ISDN line I / F unit 27 is connected to an ISDN line DL as a digital line, and the facsimile terminal connected to the digital line DL has a function of executing a communication protocol of G4 facsimile communication. The ISDN line I / F unit 27 controls connection of the digital line DL to the G4 communication control units DN1 and DN2.
[0056]
Each of the G3 communication control units AN1 to ANn has a function of executing a communication protocol of G3 facsimile communication, and each of the G3 communication control units AN1 to ANn controls the analog line I / F unit 3 and the line switching control unit 25. G3 facsimile communication is performed by executing a G3 mode facsimile communication protocol with a facsimile terminal connected via the G3.
[0057]
The G4 communication control units DN1 and DN2 perform facsimile communication by executing a G4 mode facsimile communication procedure with a facsimile terminal connected via the digital line DL.
[0058]
The G3 communication control units AN1 to ANn and the G4 communication control units DN1 and DN2 constitute communication means.
[0059]
Next, the operation will be described.
[0060]
This exampleNext, a communication control process when the facsimile storage and switching apparatus 21 shown in FIG. 6 is connected in a connection form as shown in FIG. 8 will be described.
[0061]
In FIG. 8, FMSA and FMSB by the facsimile storage and switching apparatus 21 are connected by dedicated lines (extensions) via PBXs (exchanges) of the offices A and B, respectively, and analog lines and digital lines as external lines. FAX-A1 to A4 and FAX-B1 to B4 as facsimile communication terminals are connected to FMSA and FMSB, respectively. Further, a facsimile communication terminal FAX-B is connected to the PBX in the office B.
[0062]
The communication control process of the facsimile storage and exchange device 21 in this connection mode will be described with reference to the flowchart shown in FIG.
[0063]
In FIG. 9, when there is a transmission request from the facsimile communication terminals FAX-A1 to A4 and FAX-B1 to B4 connected to the FMSA or FMSB by the facsimile storage and switching device 21 of FIG. 8, the facsimile storage and switching device 21 stores the data. The on / off (unused) of the automatic call change instruction using the telephone number table corresponding to the G4-G3 outside line-G3 extension telephone number shown in FIG. (Step Q1). If it is off, normal call processing is performed with the input calling number (step Q2). When the connection of the call is confirmed (step Q3), data is transmitted (step Q4), and the communication result is stored in the communication history. The information is recorded as information, and the communication control process ends (step Q5). On the other hand, if the call cannot be connected in step Q3, the redial calling process is executed up to a specified number of times (step Q6). The process is interrupted, the information of the call failure is recorded in the communication history information, and the communication control process ends (step Q5).
[0064]
On the other hand, if the automatic call change instruction is turned on in step Q1, it is checked whether the call number is a call number registered in the storage unit 24 (step Q7). If it is not registered, the normal call processing of steps Q2 to Q6 is executed. If it is registered, first, as shown in FIG. A call is made using the calling number for the dedicated line (step Q8), and the connection of the call is confirmed (step Q9). When the call is connected, data is transmitted (step Q10), and it is checked whether or not an error has occurred during modem training (step Q11). When an error occurs, the facsimile communication terminals FAX-A1 to A4 and FAX-B1 that have been requested to transmit an error report that records a series of call numbers registered in the storage unit 24 of the call destination facsimile communication terminal. To B4 (step Q12), the communication result is recorded in the communication history information, and the communication control process ends (step Q5). If there is no error at the time of training, the communication result is recorded in the communication history information, and the communication control process is terminated (step Q5).
[0065]
On the other hand, if the call cannot be connected via the G3 extension in step Q9, a call is made to the same destination with the G4 external line calling number to confirm the call connection (steps Q13, Q14). When the call is connected, data is sent out by the processing of steps Q10 to Q12, an error check at the time of modem training is performed, and an error report is output. The communication result is recorded in communication history information to perform communication control processing. The process ends (step Q5). If the call cannot be connected with the G4 external line, the call is made with the calling number for the G3 external line to confirm the call connection (steps Q15 and Q16). When the call is connected, data is sent out by the processing of steps Q10 to Q12, an error check at the time of modem training is performed, and an error report is output. The communication result is recorded in communication history information to perform communication control processing. The process ends (step Q5).
[0066]
If the call could not be connected, redial calling processing by the calling processing in steps Q8 to Q16 from the G3 extension to the G3 external line is executed up to a specified number of times (step P17). Sends out the data through the processing in steps Q10 to Q12, executes an error check at the time of modem training and outputs an error report, records the communication result in communication history information, and ends the communication control processing (step Q5). ). If the call cannot be connected even after executing the redial call processing up to the specified number of times, the call processing is interrupted, the information of the call failure is recorded in the communication history information, and the communication control processing ends (step Q5). .
[0067]
As described above, the communication control process is performed in the facsimile storage and exchange device 21, so that the facsimile communication terminals FAX-A 1 to A 4 and FAX-B 1 to request transmission to the facsimile storage and exchange device 21 as shown in FIG. According to the priority registered in the registration table with respect to the calling number input from B4, the G3 extension, the G4 external line, and the call destination connected to the G3 external line by a plurality of lines correspond to the respective lines. The call processing is performed in ascending order of the call numbers among the call numbers registered in the storage unit 24, so that the communication cost can be reliably reduced.
[0068]
Further, when the connection of the call by redialing fails, or when an error occurs in the modem training after the call connection, the calling number registered in the series of storage units 24 of the calling destination is an error report or The facsimile communication terminals FAX-A1 to A4 and FAX-B1 to B4, which are recorded in the communication history information and requested to transmit, are output to the facsimile communication terminals FAX-A1 to A4 and FAX-B1 to B4. By checking the error report and the communication history information, it is possible to grasp the state of the call destination and take immediate action. Further, since the redial process is automatically executed, the operator can eliminate the re-call operation. it can.
[0069]
Further, the processing of steps Q8 to Q12 within the dashed line in the flowchart of FIG. 4 can be replaced with the flowchart shown in FIG. 10, and this processing will be described. In FIG. 10, the same step processing portions as those in the flowchart of FIG. 9 are denoted by the same step numbers.
[0070]
That is,This exampleThe only difference is that Steps Q18 and Q19, which are circled, are added. Redial processing is added to each call made by the G3 extension and the call made by the G4 external line. Is executed.
[0071]
Therefore, it is possible to save the trouble of the operator's re-call operation and shorten the interval of the redial call processing.
[0072]
【The invention's effect】
A communication device according to the present invention is a communication device that performs communication corresponding to a communication terminal connected to a plurality of lines, wherein a line control unit that performs connection / exchange with the plurality of lines, Automatic calling means for automatically calling the communication terminal, wherein the automatic calling means switches from a line having a low communication cost to a communication terminal having the same destination number connected and exchanged by the line control means. In the communication devices that attempt to connect sequentially, an instruction means for instructing the use and non-use of the automatic call means is provided, so that the automatic call function can be used if necessary..
[0073]
Also, the communication device of the present invention is a communication device which performs communication corresponding to a communication terminal connected to a plurality of lines, wherein the line control means for connecting / exchange with the plurality of lines corresponds to the same destination number Registration means for setting and registering the telephone number information of the communication terminals connected to the plurality of lines and setting the priority of a plurality of calls, and automatically calling the communication terminals connected to the plurality of lines. Automatic calling means for calling, based on the priority of the call set in the registration means, the automatic call means to the communication terminal of the same destination number exchanged connection by the line control means In the communication devices that attempt to connect sequentially, an instruction means for instructing the use and non-use of the automatic call means is provided, so that the automatic call function can be used if necessary..
[Brief description of the drawings]
FIG. 1 is a block diagram of a facsimile apparatus to which a communication device according to the present invention is applied.
FIG. 2 is a view showing a calling number information table registered in a parameter memory of the facsimile apparatus of FIG. 1;
FIG. 3 is a diagram showing a connection form between offices to which the facsimile machine of FIG. 1 is connected.
FIG. 4 is a flowchart of a communication control process in a facsimile apparatus to which the communication device according to the present invention is applied.
FIG. 5 is a flowchart of a step part replaced by the communication control processing of FIG. 4;
FIG. 6 is a facsimile storage and exchange device.An example ofLock diagram.
FIG. 7 is a view showing a calling number information table registered in a storage unit of the facsimile storage and exchange apparatus of FIG. 6;
FIG. 8 is a diagram showing a connection form between offices to which the facsimile storage and exchange apparatus of FIG. 6 is connected.
FIG. 9 is a facsimile storage and exchange device.An example of5 is a flowchart of a communication control process in the embodiment.
10 is a flowchart of a step part replaced by the communication control processing of FIG. 9;
[Explanation of symbols]
1 Facsimile machine
2 CPU
3 Main memory
4 Parameter memory
Ten    Operation display device
11 plotter
12 Scanner
18 Communication control device
21 Facsimile storage and switching equipment
22 System control unit
23 Operation section
24 Memory
25 Circuit switching control unit
26 PSTN line I / F
27 ISDN line I / F
AN1 to ANn G3 communication control unit
DN1, DN2 G4 communication control unit
P1 to Pn PSTN line
I1-In Extension
DL ISDN line

Claims (2)

In a communication device that performs communication corresponding to a communication terminal connected to a plurality of lines,
Line control means for performing connection / exchange with the plurality of lines,
Automatic calling means for automatically calling a communication terminal connected to the plurality of lines, wherein the automatic calling means transmits to the communication terminal having the same destination number connected and exchanged by the line control means. A communication device that attempts to connect sequentially from a line having a low communication cost, further comprising an instruction unit for instructing use and non-use of the automatic calling unit. In a communication device that performs communication corresponding to a communication terminal connected to a plurality of lines,
Line control means for performing connection / exchange with the plurality of lines,
Registration means for setting and registering telephone number information of communication terminals connected to the plurality of lines corresponding to the same destination number, and setting a priority order of a plurality of calls;
Automatic call means for automatically calling a communication terminal connected to the plurality of lines, wherein the automatic call means controls the line control based on a call priority set in the registration means. A communication apparatus for sequentially trying to connect to communication terminals having the same destination number which has been connected and exchanged by the means, further comprising an instruction means for instructing use and non-use of the automatic calling means.

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