JPH1141386A - Facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide facsimile equipment which can effectively utilize a digital line. SOLUTION: An audio CODEC 36 regards transmission/reception data modulated and demodulated by a MODEM 35 for G3/super G3 as audio data and performs A/D conversion and D/A conversion according to the non-linear quantization, namely, encoding rules (μ-law:μmethod) based on the G.712 or the like of the ITU-T recommendation. Then, these data are transmitted through an ISDN line L2 to the transmission destination according to a base band transmission system. Therefore, between the ISDN lines L2 through an exchange network, communication time can be shortened almost without being affected by noises or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ITU-T (Inte
rnational Telecommunication Union-Telecommunicatio
n) Recommendation T. T.30 (Group 3: G3 aircraft);
70 mag (Group 4: G4 aircraft) and T.M. 30 Annex
The present invention relates to a facsimile apparatus having a function of F (super G3 machine).

[0002]

2. Description of the Related Art In recent years, PSTN (Public Switch Teleph
one Network (Public Switched Telephone Network)
A facsimile apparatus having a G4 function for an SDN (Integrated Services Digital Network) line has begun to spread. With this G4 machine, 6
Data communication can be performed at a communication speed of 4 [kbps]. In addition, V.1 in the ITU-T recommendation for improving the communication speed mainly on the PSTN line. A facsimile machine (Super G3 machine) having 34 functions is also becoming popular. With this Super G3 aircraft, a maximum of 33.6 [k
[bps].
For this reason, a facsimile machine which can add a super G3 function and a G4 function as options to a G3 machine has appeared.

[0003]

Incidentally, the PSTN line is an analog line, and thus is easily affected by noise and the like. For this reason, the fallback function may operate during the inter-frame control time in the control channel during communication, and the communication speed may decrease. Here, in the G3 communication, the number of errors occurring between transmission and reception during transmission of one page or frame is counted in the G3 communication. If the number of errors is equal to or more than a predetermined number, the symbol rate or the communication rate is reduced. The goal is to reduce the number of errors.
In the super G3 communication, in addition to the function at the time of the G3 communication, when the number of errors is equal to or less than a predetermined number, the communication speed may be increased.

[0004] However, even if a super G3 machine is used, retraining frequently occurs between transmission and reception due to the influence of noise and the like on the PSTN line, and the communication time cannot be reduced much. Here, retraining is 2
Using a 400 Hz or 1200 Hz tone signal,
When the signal is transmitted while inverting the phase of the signal by 180 °, and when the phase is not inverted, the function is to use a card tone signal of 1800 Hz together. That is, retraining is a function of adjusting the phase and optimizing the modem. Therefore, PS by Super G3
In the communication via the TN line, the communication time cannot be reduced much. In addition, in communications with remote locations such as overseas, instantaneous interruptions frequently occur due to delays in satellite communication and the like, and there is a possibility that line disconnection may occur.

[0005] The present invention has been made in view of the problems existing in such a conventional technique, and has as its object to provide a facsimile apparatus capable of effectively using a digital line.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a first apparatus which is connected to an analog line and performs communication according to a half-duplex communication system and a full-duplex communication system. Communication means, second communication means connected to a digital line and communicating according to a full-duplex communication method, deemed voice means for treating image data as deemed voice, and a digital signal from the deemed voice means via a digital line Control means for communicating.

According to a second aspect of the present invention, in the facsimile apparatus according to the first aspect, a call is made based on the storage means for storing the abbreviated number table and history table of the destination, and the abbreviated number table and history table. Control means.

According to a third aspect of the present invention, in the facsimile apparatus according to the second aspect, if the line disconnection occurs after the first communication means makes a call, the control means issues a re-call from the second communication means. Do.

In the embodiments of the invention described below, the "analog line" described in the claims or the means for solving the problems corresponds to the PSTN line L1, and the "digital line" is also the ISDN line. L2, and “half-duplex communication method” is defined in ITU-T Recommendation V. 17 and the like, and the “full-duplex communication method” is defined in ITU-T Recommendation V.17. 8 and V.I. 34, the “first communication means” corresponds to the G3 / super G3 machine 2, and the “second communication means” corresponds to the super G3.
+ G4 functional unit (optional) 3, “deemed voice means” also corresponds to voice codec 36, “storage means” also corresponds to RAM 13, and “control means” similarly MPU 11, ROM 12, RAM 13, MPU 3
1, ROM32 and RAM33.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the facsimile machine 1 includes a G3 / super G3 machine 2 and a super G3 + G4 function unit (hereinafter, optional unit) 3.

The G3 / super G3 machine 2 is an MPU 11,
ROM 12, RAM 13, reading unit 14, recording unit 15, operation unit 16, display unit 17, image memory 18, codec 1
9, a G3 / super G3 modem 20 and an NCU 21, and each of the units 11 to 21 is connected via a bus 22.

The MPU 11 controls each part constituting the G3 / super G3 machine 2 and also has a DPRAM
G3 / Super G3 machine 2 and optional part 3 via 38
And the like between them. The ROM 12 stores a program for controlling the G3 / super G3 machine 2. The RAM 13 temporarily stores various information related to transmission and reception between the G3 / super G3 machine 2 and the option unit 3. Further, the RAM 13 stores the source information (for example, a fax number or the like) of the PSTN line L1 and the source information (for example, a fax number or the like) of the ISDN line L2. further,
The RAM 13 stores an abbreviated number table T1 including abbreviated numbers, facsimile numbers, names, communication modes, and the like shown in FIG.
Further, the RAM 13 stores a history table T2 including a FAX number and a communication mode shown in FIG. The history table T2 always stores the latest fax number and communication mode. Therefore, when the number of histories becomes equal to or more than a predetermined number, the oldest FAX number and the communication mode are automatically sequentially deleted and updated.

The reading unit 14 reads image data on a document and outputs black and white binary image data. The recording unit 15 is composed of an electrophotographic printer, and records received image data on recording paper.

The operation unit 16 includes a numeric keypad (including the * and # keys) 16a for inputting a telephone number, an abbreviated number registration, and an abbreviated key 16b for transmitting a call from the abbreviated number.
Start key 1 for starting document reading operation
6c, selecting the communication mode “G3” or “G4”,
In other words, "PSTN line L1" or "ISDN line L
Various operation keys such as a communication mode key 16d for selecting "2" and an abbreviated number setting key (not shown) are provided. In the present embodiment, the communication mode is always set to “G4 (ISDN line L2)” unless the user sets the communication mode to “G3 (PSTN line L1)”. A display unit 17 such as an LCD displays various information such as an operation state of the facsimile machine 1.

The image memory 18 temporarily stores received image data and image data read by the reading unit 14. The codec 19 encodes the image data read by the reading unit 14 using the MMR method or the like for transmission.
I do. The codec 19 decodes the received image data.

The G3 / Super G3 modem 20 is a T.30 modem.
Facsimile control procedure according to V.30 and V.30. 17, V.
27ter, V.A. 29 (hereinafter V.17 etc.)
Modulation and demodulation of transmission / reception data in accordance with G
3 / Super G3 modem 20, the V.3 8 and a session start procedure according to V.8. The modulation and demodulation of the transmission / reception data according to S. The NCU 21 has a function of closing and opening the PSTN line L1, detecting the transmission and reception of a dial pulse corresponding to the fax number of the other party, and the like.

The option unit 3 includes an MPU 31 and a ROM 3
2, a RAM 33, a LAPB 34, a G3 / super G3 modem 35, a voice codec 36, an S interface 37, and a DPRAM 38, and the respective units 31 to 38 are connected via a bus 40, respectively.

The MPU 31 controls each unit constituting the option unit 3. The ROM 32 stores a program for controlling the option unit 3. The RAM 33 temporarily stores various information related to transmission and reception of the option unit 3.

LAPB (Link Access Procedure Balanc)
ed: balanced link access procedure) It is for a balanced transmission procedure for a 25-packet switched network, and is used for a data link layer (Data L) in OSI (Open Systems Interconnection).
ink Layer: In layer 2), In addition to the 25-packet exchange, it has functions such as B-channel packet exchange of the ISDN line L2.

The G3 / super G3 modem 35 has the same function as the G3 / super G3 modem 20. The voice codec 36 regards the transmission / reception data modulated and demodulated by the G3 / super G3 modem 35 as voice data, and uses the G.264 / G3 / G. 712 or the like, that is, a coding rule (μ-la
w: μ method) to perform A / D conversion and D / A conversion.

That is, as shown in FIG. 4, the audio codec 36 includes an A / D / D / A converter 51 and a PCM (Pulse
Code Modulation (Pulse Code Modulation System) 52 and a codec filter 53. A / D ・ D /
The A / D converter 51 includes an A / D converter 51a and a D / A converter 5
1b. That is, the A / D converter 5
1a converts an analog signal from the G3 / super G3 modem 35 into a digital signal. D / A converter 51b
Converts the digital signal from the LAPB 34 into an analog signal. The PCM 52 samples, quantizes and encodes the analog signal, and decodes the digital signal.
The codec filter 53 is described in ITU-T Recommendation, 71
It has a filter function that conforms to standards such as 2. That is, the image data input to the audio codec 36 is regarded as audio, and A / D conversion and D / A conversion are performed.

The S interface 37 synchronizes image data transmitted from the audio codec 36 with the
The image data received from the DN line L2 is
To send to.

LAPD (Link Access Procedure on the
D-channel: call control / information transfer procedure) 37a is an ISD
This is for the call control / information transfer procedure on the D channel of the N line L2, and is different from the LAPB 34 in that the LAPB 34 takes into account the physical layer of the ISDN line L2.
In addition to the point-to-point type, the addition of a broadcast (multipoint type: one-to-many) data link,
Since the D channel of the ISDN line L2 is used for both the circuit-switched call control signal and the packet-switched transmission, the multiplex LAP
(A plurality of data links are simultaneously established on one physical interface).

The DPRAM 38 is connected to the bus 22 and the bus 40 for connecting the G3 / super G3 machine 2 and the option unit 3. Therefore, MPU11 and MP
The data transfer with the U31 is performed by the DPRAM 38.
Done through.

The operation of the facsimile apparatus 1 configured as described above when registering the abbreviated numbers and the like shown in FIG. When the user presses an abbreviated number setting key (not shown), the registered items (abbreviated number, FAX number, name, communication mode) are sequentially changed.
Displayed on the display unit 17. When various data such as a facsimile number is key-input from the ten keys 16a of the operation unit 16 based on this display, the abbreviated number table T1 shown in FIG.
3 is stored.

Next, the operation when the facsimile machine 1 calls a destination will be described with reference to the flowcharts shown in FIGS. In this flowchart, the operations after S5 are performed based on the programs stored in the ROM 12 and the ROM 32 based on the MPU 11 and the MPU 11.
This is executed by the PU 31.

In S1 shown in FIG. 5, the user places a document on the reading unit 14. In S2,
The communication mode is set by the user using the communication mode key 16d of the operation unit 16. That is, the line to be called to the transmission destination, "G3 (PSTN line L1)" or "G4 (I
SDN line L2) "is set. The communication mode is set as long as the user does not operate the communication mode key 16d.
It is always set to "G4 (ISDN line L2)".
Therefore, if the communication mode key 16d is not operated, the communication mode is set to "G4 (ISDN line L2)".

In S3, the user inputs the FAX number of the transmission destination from the ten key 16a or the abbreviated key 16b of the operation unit 16. In S4, the user waits for the start key 16c to be pressed.

In S5, the reading of the original placed on the reading section 14 is started, the read image data is encoded by the codec 19, and the image memory 1 is read.
8 is stored once.

In S6, it is determined whether the FAX number input in S3 is a FAX number registered in the abbreviated number table T1 of the RAM 13. If the fax number is registered in the abbreviated number table T1, the process proceeds to S11 shown in FIG. On the other hand, if the fax number is not registered in the abbreviated number table T1, the process proceeds to S7.

In S7, it is determined whether the FAX number input in S3 is a FAX number registered in the history table T2 of the RAM 13. History table T2
In the case of the FAX number registered in S1 shown in FIG.
Move to 1. On the other hand, FAs not registered in the history table T2
In the case of the X number, the process shifts to S31 shown in FIG.

In S11 shown in FIG. 6, it is determined based on the FAX number inputted in S3 whether or not the "communication mode" column in the abbreviated number table T1 shown in FIG. 2 is "G4". If the column of "communication mode" is "G4", it is determined that the facsimile machine of the transmission destination is "G4 machine", and the process shifts to S12. On the other hand, if the communication mode is "G
If it is not "4", it is determined that the facsimile machine of the transmission destination is not the G4 machine, and the process shifts to S15.

In S12, the communication mode is "G4
(ISDN line L2) ". That is, in S2, the communication mode is “G3 (PSTN line L
Even if it is set to "1)", it is set to "G4 (ISDN line L2)" based on the abbreviated number table T1 shown in FIG. Then, the FA input in S3
A call is made to the X number via the ISDN line L2.

At S13, the G4 procedure is started via the ISDN line. In S14, the image data stored in the image memory 18 is transmitted via the ISDN line L2 according to the baseband transmission method, and the process ends.

In S15, the abbreviated number table T shown in FIG.
It is determined whether or not the column of “communication mode” in 1 is “super G3”. The “Communication mode” column is “Super G
In the case of "3", it is determined that the facsimile machine of the transmission destination is "super G3 machine", and the flow shifts to S16. On the other hand, if the communication mode is not “super G3”, it is determined that the facsimile machine of the transmission destination is the G3 machine, and the process shifts to S19.

In S16, the communication mode is "G4
(ISDN line L2) ". That is, in S2, the communication mode is “G3 (PSTN line L
Even if it is set to "1)", it is set to "G4 (ISDN line L2)" based on the abbreviated number table T1 shown in FIG. Then, the FA input in S3
A call is made to the X number via the ISDN line L2.

In S17, a session start procedure (V.8) for data transmission is started. In S18, the image data stored in the image memory 18 is digitally converted by the audio codec 36, and the ISD
The data is transmitted according to the baseband transmission method via the N line L2, and this processing is completed.

In S19, the communication mode is "G4
(ISDN line L2) ". That is, in S2, the communication mode is “G3 (PSTN line L
Even if it is set to "1)", it is set to "G4 (ISDN line L2)" based on the abbreviated number table T1 shown in FIG. Then, the FA input in S3
A call is made to the X number via the ISDN line L2.

In S20, a facsimile transmission control procedure (T.30) is started. In S21, the image data stored in the image memory 18 is
6 and transmitted according to the baseband transmission method via the ISDN line L2,
This process ends.

At S31 shown in FIG. 7, it is determined at S2 whether the communication mode setting by the communication mode key 16d is "G4 (ISDN line L2)". If the communication mode is "G4 (ISDN line L2)", the flow shifts to S32. On the other hand, if the communication mode is “G4
(ISDN line L2) ”, that is,“ G3
(PSTN line L1) ", the flow shifts to S51 shown in FIG.

In S32, a call is made to the FAX number input in S3 via the ISDN line L2. In S33, the G4 procedure is started via the ISDN line.

In S34, it is determined whether or not the bearer capability (BC) coming through the ISDN line L2 with the transmission destination is voice or 3.1 kHz audio. That is, when the destination facsimile apparatus is not the G4 machine, the BC is voice or 3.1 kHz audio. If the BC is unrestricted digital, in other words, if the destination facsimile machine is a G4 machine, S
Move to 35. On the other hand, if the destination facsimile machine is G
If the number is not four, the G4 procedure (for example, call setting) is not established, and a line disconnection occurs. Therefore, if no line disconnection occurs, in other words, if the destination facsimile machine is the G4 machine, the process proceeds to S35. On the other hand, when the line disconnection occurs, in other words, when the destination facsimile machine is not the G4 machine, it is determined that the destination facsimile machine is a super G3 machine or a G3 machine, and the process proceeds to S38.

In S35, the FAX number input in S3 is stored in the "FAX number" column of the history table T2 in the RAM 13, and the "communication mode"
"G4" is stored in the column.

In S36, the image data stored in the image memory 18 is transmitted via the ISDN line L2 in accordance with the baseband transmission method, and the process ends. In S38, as a facsimile transmission control procedure, first, a signal indicating no signal is transmitted to the transmission destination.

In step S39, the modem 35 for G3 / super G3 sends the V.35 signal from the transmission destination to the V.30 / G3. ANSam showing the functions of 8
It is determined whether a signal has been detected. When the ANSam signal is detected, the process proceeds to S40. On the other hand, if the ANSam signal is not detected, in other words, the T.A. When 30 CED signals have been detected, the flow shifts to S42.

In S40, the FAX number input in S3 is stored in the "FAX number" column of the history table T2 in the RAM 13, and the "communication mode"
"Super G3" is stored.

In S41, the image data stored in the image memory 18 is converted into a digital signal by the audio codec 36, and is transmitted via the ISDN line L2 in accordance with the baseband transmission method.

In S42, the FAX number input in S3 is stored in the "FAX number" column of the history table T2 in the RAM 13, and the "communication mode"
"G3" is stored in the column of.

In S43, the image data stored in the image memory 18 is converted into a digital signal by the audio codec 36, and is transmitted via the ISDN line L2 according to the baseband transmission method, thus ending the processing.

In S51 shown in FIG. 8, the PSTN line L1
The call is made from. In S52, as a facsimile transmission control procedure, first, a signal indicating no signal is transmitted to the transmission destination.

In S53, the G3 / super G3 modem 20 sends the V.30 / V. ANSam showing the functions of 8
It is determined whether a signal has been detected. When the ANSam signal is detected, the process proceeds to S54. On the other hand, if the ANSam signal is not detected, in other words, the T.A. If 30 CED signals have been detected, the flow shifts to S59.

In step S54, the image data for one frame (or one page) stored in the image memory 18 is stored in the V.80. 3
4 is transmitted to the transmission destination via the PSTN line L1. In S55, it is determined whether or not the image data to be transmitted has ended. In other words, it is determined whether the image data to be transmitted to the destination ends and an EOP (End Of Procedures) signal has been transmitted. When the transmission is completed, this processing is completed. On the other hand, if the transmission has not been completed, the process proceeds to S56.

In S56, it is determined whether or not a line disconnection has occurred during communication. If line disconnection occurs, S
It moves to 57. On the other hand, if no line disconnection occurs, S5
4, the image data for the next one frame is transmitted. That is, until the EOP signal is detected in S55 or the line disconnection occurs in S56, S5
4, the image data for the next one frame is transmitted.

In S57, the FAX number input in S3 is stored in the "FAX number" column of the history table T2 in the RAM 13, and the "communication mode"
"Super G3" is stored.

In S58, the communication mode is "G3
(PSTN line L1) ”to“ G4 (ISDN line L
2) "is set. That is, even if the communication mode is set to "G3 (PSTN line L1)" in S2, the communication mode is set to "G4 (ISDN line L1)" so that a call can be made from ISDN line L2.
2) "is set. Then, the flow shifts to S16 shown in FIG. 6, where the image data for the next one frame is
All the image data to be transmitted is transmitted according to the baseband transmission method via the line L2.

In S59, the image data for one frame stored in the image memory 18 is stored in the V.80. 17 and the like via the PSTN line L1. In S60, it is determined whether or not the image data to be transmitted has been completed. In other words, it is determined whether the image data to be transmitted to the destination ends and the EOP signal has been transmitted. When the transmission is completed, this processing is completed. On the other hand, if the transmission has not been completed, the flow shifts to S61.

In S61, it is determined whether or not a line disconnection has occurred during communication. If line disconnection occurs, S
It moves to 62. On the other hand, if no line disconnection occurs, S5
9, the image data for the next one frame is transmitted. That is, until the EOP signal is detected in S60 or the line disconnection occurs in S61, S5
9, the image data for the next one frame is transmitted.

In S62, the FAX number input in S3 is stored in the "FAX number" column of the history table T2 in the RAM 13, and the "communication mode"
"G3" is stored in the column of.

In S63, if the communication mode is "G3
(PSTN line L1) ”to“ G4 (ISDN line L
2) "is set. That is, even if the communication mode is set to "G3 (PSTN line L1)" in S2, the communication mode is set to "G4 (ISDN line L1)" so that a call can be made from ISDN line L2.
2) "is set. Then, the flow shifts to S19 shown in FIG. 6, where the image data for the next one frame is
All the image data to be transmitted is transmitted according to the baseband transmission method via the line L2.

As described above, according to the present embodiment, the following operations and effects can be obtained. In the voice codec 36, the modem 35 for G3 / super G3
The transmission / reception data modulated and demodulated by the ITU-T is regarded as voice data, 712 or the like, that is, a coding rule (μ-law: μ
A), the A / D conversion and the D / A conversion are performed in accordance with the method. For this reason, between the ISDN lines L2 via the switching network, there is almost no influence of noise or the like, and the communication time can be reduced. As a result, communication charges are reduced. Therefore, the ISDN line L2 can be used effectively.

The communication mode is set based on the FAX numbers in the abbreviated number table T1 and the history table T2 stored in the RAM 13. Then, a call is made to the destination, and the image data is transmitted. Therefore, communication can be performed in an optimum communication mode according to the facsimile function of the transmission destination.

As shown in S56 and S61 in FIG.
When a call is made via the PSTN line L1 and a line break occurs, the FAX number and the communication mode are stored in the RAM 13.
Is stored in the history table T2. When the communication mode is "G4
(ISDN line L2) ". Then, the flow shifts to S16 and S19 in FIG. 6, and a recall is performed via the ISDN line L2. For this reason, in communication with a remote place such as overseas, a call is originated via the PSTN line L1, and even if a line disconnection occurs, a call is re-established via the ISDN line L2. Accordingly, communication with overseas and the like can be reliably performed by re-calling from the ISDN line L2.

This embodiment can be embodied with the following modifications.・ Past abbreviation number table T1
The determination as to whether or not the fax number is registered may be performed using a short number instead of the fax number. That is, based on the abbreviated number pressed after the abbreviated key 16b, FIG.
May be determined whether the column of “communication mode” in the abbreviated number table T1 shown in FIG. 7 is “G4”, “super G3”, or “G3”.

Further, technical ideas other than the claims grasped from the above embodiment will be described below together with their effects. A first communication unit connected to an analog line and communicating according to a half-duplex communication method, a second communication unit connected to a digital line and communicating according to a full-duplex communication method, and treating image data as deemed audio A facsimile apparatus comprising: a deemed voice means; and a control means for communicating a digital signal from the deemed voice means via a digital line.

With this configuration, G3 / G3 shown in FIG.
The super G3 modem 20 can be constituted by a G3 modem.

[0066]

Since the present invention is configured as described above, it has the following effects. According to the first aspect of the present invention, image data is treated as deemed audio, communication can be performed via a digital line, and communication time can be reduced. Therefore, it is possible to provide a facsimile apparatus that can effectively use a digital line.

According to the invention described in claim 2, according to claim 1
In addition to the effects of the invention described in (1), since a call is made to the transmission destination based on the abbreviated number table and the history table stored in the storage means, communication can be performed in an optimal communication mode.

According to the invention of claim 3, according to claim 2,
In addition to the effects of the invention described in (1), even if a line disconnection occurs, communication can be reliably performed by re-calling from the second communication means.

[Brief description of the drawings]

FIG. 1 is a block diagram of a facsimile apparatus according to an embodiment.

FIG. 2 is an explanatory diagram showing an abbreviated number table similarly stored in a RAM.

FIG. 3 is an explanatory view showing a history table similarly stored in a RAM.

FIG. 4 is a block diagram showing an audio codec.

FIG. 5 is a flowchart showing an operation at the time of transmission.

FIG. 6 is a flowchart showing an operation at the time of transmission.

FIG. 7 is a flowchart showing an operation at the time of transmission.

FIG. 8 is a flowchart showing an operation at the time of transmission.

[Explanation of symbols]

1. Facsimile machine 2: G3 as first communication means
Part 3, G3 / super G3 + G as second communication means
4 parts (optional part), 11... MP constituting control means
U, 12: ROM configuring control means, 13: RAM configuring storage means and control means, 31: MPU configuring control means, 32: ROM configuring control means, 33 ...
RAM constituting control means, 36 ... audio codec, L
1: PSTN line as an analog line, L2: ISDN line as a digital line, T1: abbreviated number table, T2
… History table.

Claims (3)

[Claims] 1. A first communication means connected to an analog line and communicating according to a half-duplex communication method and a full-duplex communication method, and a second communication means connected to a digital line and communicating according to a full-duplex communication method A facsimile apparatus comprising: means; a deemed voice means for treating image data as deemed voice; and a control means for communicating a digital signal from the deemed voice means via a digital line. 2. The facsimile apparatus according to claim 1, further comprising: storage means for storing an abbreviated number table and a history table of a transmission destination; and a control means for making a call based on the abbreviated number table and the history table. apparatus. 3. The facsimile apparatus according to claim 2, wherein the control means performs a re-call from the second communication means when a line disconnection occurs after calling from the first communication means.