JPH07273909A - Voice-facsimile integrated exchange system - Google Patents

Abstract

PURPOSE:To display a document sent from an opposite party in facsimile communication onto a display section of a telephone set while making communication with the opposite party through each telephone set. CONSTITUTION:A private branch of exchange 80 is provided with a signal multiplexer/demultiplexer means 22 multiplexing/demultiplexing a voice signal and a facsimile signal, a facsimile communication control means 40, and a facsimile storage means 44, and an extension telephone set 1 connecting to the private branch of exchange is provided with a voice signal input output means 11, a signal multiplexer/demultiplexer means 4, and a facsimile signal display means 6. Digitally multiplexed voice and facsimile signals are sent simultaneously through a same line between the private branch of exchange and an extension telephone set. A facsimile signal received by the private branch of exchange is stored once and in the case of making communication with the telephone set 1, when the telephone set is operated to make a display command of the facsimile signal, the stored facsimile signal is transferred from the private branch of exchange 80 to the telephone set 1 and displayed on the facsimile signal display means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching system which handles both voice signals and facsimile signals, and more particularly, it is constructed so that it can be widely applied to various usage forms demanded by users.

[0002]

2. Description of the Related Art In recent years, various types of telephone exchange devices have been developed according to the scale of users, and have been popularized in companies and offices at a remarkable rate. In addition, the number of installed telephones in the office has reached almost one per person. Further, the spread of facsimile is remarkable. However, the number is still smaller than that of telephones, and the penetration rate is about one in each department. In such an office environment, there are many opportunities to talk to the other party by telephone while looking at a document sent by facsimile. Usually, in such a case, the other party suddenly calls and says, "May I read the fax I sent you earlier?"You'll have to stay on the phone, rush to get the fax, pick up the phone again, read the fax, and talk to the other person.

[0003]

However, in such a case, it is still preferable if there is a FAX nearby, but when it is installed remotely, it takes a lot of effort to go to the sent document, and , That will make the other person wait. In recent years, a memory FAX has become popular, which stores a document sent by facsimile in a memory without directly printing it. In this case, the FAX is received but it is still printed out. Not often happens. In such a case, there arises a problem that the other party is made to wait for a longer time until the received document is printed out.

The present invention solves the above-mentioned conventional problems, and the voice / facsimile integrated exchange capable of displaying a document facsimile-transmitted from the other party on the display unit of the telephone while talking with the other party through the telephone. The purpose is to provide a system.

[0005]

Therefore, according to the present invention, in a voice / facsimile integrated exchange system including a private branch exchange for exchanging voice signals and facsimile signals, a voice signal and a facsimile signal are transmitted to the private branch exchange. Signal demultiplexing / demultiplexing means for demultiplexing, facsimile communication control means for controlling facsimile communication, and facsimile accumulating means for accumulating facsimile signals, and voice input to the extension telephone connected to the private branch exchange. Output means, signal multiplexing / separating means for demultiplexing voice signals and facsimile signals, and facsimile signal display means for displaying facsimile signals are provided, and digital multiplexing is performed between the private branch exchange and the extension telephone. To enable simultaneous transmission of voice signals and facsimile signals over the same line Forms.

In the private branch exchange, telephone number storage means for storing the correspondence between the telephone number data of the extension telephone and the facsimile telephone number, and the designated telephone number for receiving the call and the facsimile telephone stored in the telephone number storage means A telephone number comparison means for comparing the number with a telephone number comparison means is provided, and when an incoming call is received at a matching facsimile number in the comparison of the telephone number comparison means, the facsimile data is stored in the facsimile storage means and then stored in the telephone number storage means. The extension telephone corresponding to the stored facsimile telephone number is notified of the arrival of the facsimile.

Further, the extension telephone is provided with an operation button for requesting the private branch exchange to call the facsimile signal stored in the facsimile storing means, and the facsimile signal is displayed on the extension telephone during a voice call or a non-call. It is configured so that it can be displayed on the means.

Further, the extension telephone is provided with an operation button for requesting the private branch exchange to output the facsimile signal stored in the facsimile storage means to the facsimile, and the extension telephone can be used during a voice call or a non-call. The stored facsimile signal is configured to be output to a facsimile device.

Further, at this time, the private branch exchange device is so constructed as to notify the extension telephone of the completion of output after outputting the facsimile signal stored in the facsimile storage means to the facsimile device.

Further, the private branch exchange is provided with image size conversion means for performing an image size conversion process according to the display capability of the extension telephone.

Further, the private branch exchange is provided with image cutout means for performing image cutout processing in accordance with the operation of the extension telephone.

[0012]

In this system, the facsimile received at the private branch exchange is temporarily stored in the facsimile storage means. After that, when the other party makes a call to the extension telephone and is talking through the extension telephone, if the digital telephone is operated to issue an instruction to display a facsimile signal,
The facsimile signals stored in the facsimile storage means are transferred from the private branch exchange to the extension telephone and displayed by the facsimile signal display means. At this time, the voice signal and the facsimile signal are simultaneously transferred by the multiplexing of the signal multiplexing / separating means. Therefore, while talking with the other party, the extension telephone is operated to display the necessary facsimile signal on the extension telephone. Can be made. Therefore, it is not necessary to take the trouble of going to the FAX, and it is possible to respond to the other party extremely quickly.

Further, when the facsimile signal is stored in the facsimile storage means, it is possible to notify the corresponding extension telephone that the facsimile is in the incoming state, and the facsimile signal is displayed and confirmed even when the call is not received from the other party. You can

Further, the facsimile signal stored in the facsimile storing means is operated by an extension telephone.
You can also print out the fax.

When the facsimile signal stored in the facsimile storage means is displayed on the facsimile signal display means, the image size conversion process is performed according to the display capability of the extension telephone. Therefore, a high-resolution facsimile signal can be transferred to an expensive extension telephone having a high display capability, and a low-resolution facsimile signal can be transmitted to an extension telephone having a low display capability. You can use different model levels.

Further, when displaying the facsimile signal accumulated in the facsimile accumulating means by the facsimile signal displaying means, the image of the facsimile signal can be cut out and displayed according to an instruction from the extension telephone. Therefore, it is possible to select a portion required for display and enlarge and display only that portion.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A voice / facsimile integrated exchange system according to an embodiment of the present invention, as shown in FIG.
And a private branch exchange 80 and a facsimile 70. The extension telephone 1 includes a handset 11 for voice communication, a voice signal amplifier 2, and a voice signal A / D / D / A for analog / digital conversion of the voice signal.
A converter 3; a voice / facsimile signal multiplexing controller 4 for multiplexing / separating and controlling a voice signal and a facsimile signal;
A PBX interface section 5, a dot matrix display 6 for displaying facsimile signals, a display memory 8 for storing facsimile signals,
A display display control unit 7, a panel unit 9 for operation and display, and a telephone control unit 10 for controlling the entire extension telephone set 1 are provided.

The private branch exchange 80 controls the extension unit 20 for controlling the extension telephone 1, the external line unit 30 for controlling the external line, the facsimile control unit 40 for performing the facsimile control, and the overall control of the private branch exchange 80. An analog line control unit 60 for performing line interface control between the central control unit 50 and the facsimile device 70.
And an internal bus 90 for transmitting signals.

The extension unit 20 includes an extension interface section 21 and a voice / facsimile signal multiplexing control section for multiplexing / separating control of a voice signal and a facsimile signal.
The external line unit 30 includes an external line interface unit 31 for controlling an external line and an audio signal A / D / D for converting an audio signal into an analog signal. The A / A converter 32 and the outside line control unit 33 for controlling the entire unit are provided.

Further, the facsimile control unit 40 includes a facsimile modem 45 for modulating / demodulating facsimile communication.
A facsimile communication control unit 41 for controlling facsimile communication, a facsimile signal compression / decompression unit 42 for controlling compression / decompression of facsimile signals, a facsimile signal storage unit 44 for storing facsimile signals, and a facsimile for controlling the storage. A signal accumulation controller 43 and a facsimile signal size converter for converting the size of a facsimile signal.
46 and a facsimile signal cutout unit 47 for cutting out a facsimile signal. Further, the central control unit 50 is provided with a telephone management information storage unit 51 for storing management information of each extension telephone and FAX, and a master CPU 52 which is the main body of control.

In this apparatus, when there is an incoming call from the facsimile of the other party, the outside line unit 30 detects it, and the outside line interface section 31 detects the dial-in number input from the outside line. This dial-in number is passed to the central control unit 50, and the master CPU 52 compares this dial-in number with the telephone number data stored in the telephone management information storage unit 51. If the attribute of the matched telephone number is facsimile, a line capture command is issued to the outside line unit 30 to capture the line, and then control is transferred to the facsimile control unit 40 to continue control of the line. Let me do it.

In the facsimile control unit 40 to which the control right is transferred, under the control of the facsimile communication control section 41, the facsimile modem 45 demodulates the facsimile signal and the facsimile signal compression / expansion section 42 compresses the received signal. Is expanded to the original state, and the facsimile data is stored in the facsimile storage unit 44 under the control of the facsimile storage control unit 43.

When the facsimile communication is completed, the facsimile data storage operation ends, and at the same time, the facsimile signal control information is sent from the facsimile storage control section 43.
Master C of central control unit 50 via common bus 90
Passed to PU52. The master CPU 52 stores this information in the telephone management information storage unit 51 in association with the facsimile telephone number, and also notifies the extension telephone 1 corresponding to the facsimile telephone number that a facsimile call has arrived. This notification is set in the command field of the data string to be transmitted to the extension telephone 1 as a facsimile arrival notification command in the voice / facsimile multiplexing control unit 22 of the extension unit 20 to which the corresponding extension telephone 1 is connected. It is transmitted to the extension telephone set 1 via the extension interface unit 21.

The extension telephone set 1 receives this signal sequence via the PBX interface unit 5 and further passes it to the voice / facsimile multiplexing control unit 4. The voice / facsimile multiplexing control unit 4 recognizes the command field from this signal sequence and passes the information to the telephone control unit 10. Receiving this, the telephone control unit 10 recognizes that it is a facsimile incoming call notification command, lights the FAX incoming call lamp on the panel unit 9, and notifies the person corresponding to the extension telephone of the facsimile incoming call.

Next, when a telephone call is received from the other party and the other party and the corresponding party are in a call, the facsimile signal stored in the facsimile signal storage section 44 is read out and displayed on the dot matrix display 6 attached to the extension telephone 1. The operation will be described.

When there is an incoming call from the other party's telephone, the outside line unit 30 detects it and the outside line interface section 31 detects the dial-in number input from the outside line. This dial-in number is passed to the central control unit 50, and the master CPU 52 compares this dial-in number with the telephone number data stored in the telephone management information storage unit 51. If the attribute of the matched telephone number is an extension telephone, an extension telephone call command is issued to the corresponding extension telephone 1. This command is issued by the voice / facsimile multiplexing control unit 22 of the extension unit 20 to which the corresponding extension telephone 1 is connected.
As a voice incoming notification command, it is set in the command field of the data string to be transmitted to the extension telephone 1, and then transmitted to the extension telephone 1 via the extension interface unit 21.

The extension telephone set 1 receives this signal train via the PBX interface unit 5 and transfers it to the voice / facsimile multiplexing control unit 4. The voice / facsimile multiplexing control unit 4 recognizes the command field and passes the information to the telephone control unit 10. The telephone control unit 10 receiving this information recognizes that it is a voice incoming notification command, and the panel unit 9 Sounds the speaker at to prompt the corresponding person to hook up the handset 1.

When the correspondent hooks up the handset 1, the telephone control unit 10 recognizes this and the private branch exchange 80
To a hookup notification command. This command is set in the command field of the data string to be transmitted to the private branch exchange 80 in the voice / facsimile multiplexing control unit 4, and is transmitted to the private branch exchange 80 via the PBX interface unit 5.

The private branch exchange 80 receives this signal sequence via the extension interface unit 21 of the corresponding extension unit 20 and transfers it to the voice / facsimile multiplexing control unit 22.
The voice / facsimile multiplexing control unit 22 recognizes the command field from this signal sequence and outputs the information to the extension control unit 23.
Pass to. Receiving this, the extension control unit 23 recognizes that it is a hookup notification command, issues a line capture command to the outside line unit 30 via the central control unit 50, and communicates with the partner telephone and the extension telephone 1. Form a communication path between them. This enables a voice call with the other party.

The operation during a voice call is as follows. First, the voice signal emitted from the other party is transmitted to the voice signal A / D / D / A conversion unit 32 via the outside line interface unit 31, and is converted into a digital signal which can be transmitted in the private branch exchange device. . The digitized voice signal is sent to the corresponding extension unit 20 via the common bus 90, and is sent from the extension control unit 23 to the voice / facsimile multiplexing control unit 22. Next, in the voice / facsimile multiplexing control unit 22, it is set in the voice field of the data string to be transmitted to the extension telephone 1, and is transmitted to the extension telephone 1 via the extension interface unit 21.

The extension telephone set 1 receives this signal sequence via the PBX interface unit 5 and then passes it to the voice / facsimile multiplexing control unit 4. Upon recognizing the voice field, the voice / facsimile multiplexing control unit 4 extracts the voice signal set in the voice field, and outputs the voice signal A /
Pass to the D / D / A converter 3. The audio signal A / D / D / A converter 3 converts the delivered digital audio signal into an analog signal, and this analog signal is converted into the audio signal amplifier 2
After being amplified by, the sound is output as a sound through the speaker 12 attached to the handset 11.

In a conversation with the other party, when it becomes necessary to urgently check the content of the FAX, the correspondent presses the FAX display button on the panel unit 9 to request the display of the FAX already received. This button operation is for the extension telephone 1
The telephone control unit 10 recognizes it via the panel unit 9 and sends a facsimile signal display command to the private branch exchange 80. This facsimile signal display command is voice /
In the facsimile multiplexing control unit 4, the private branch exchange 80
Is set in the command field of the data string to be transmitted to the private branch exchange 80 via the PBX interface unit 5.

The private branch exchange 80 receives this signal sequence through the extension interface section 21 of the corresponding extension unit 20, and further, the voice / facsimile multiplexing control section 22.
Pass to. The voice / facsimile multiplexing control unit 22 recognizes the command field from this signal sequence and passes the information to the extension control unit 23. Upon receiving this, the extension control unit 23, when recognizing that the command is a facsimile signal display command, informs the central control unit 50 of the content to that effect. The central control unit 50 checks whether or not the facsimile signal corresponding to the telephone number of the extension telephone 1 stored in the telephone management information storage unit 51 is stored, and when the desired facsimile signal is stored, the facsimile signal management number is stored. Then, the facsimile signal management number, the display capability information of the extension telephone set 1 to be transmitted and the telephone number are passed to the facsimile control unit 40, and a facsimile signal display command is issued.

Facsimile control unit 40 that received a command
First, the facsimile signals stored in the facsimile signal storage section 44 are sequentially taken out, and the facsimile signal compression / decompression section 42 converts them into bit map signals. Next, the facsimile signal size conversion unit 46 performs image reduction conversion processing according to the display capability of the designated extension telephone 1. The facsimile signal thus obtained is subjected to image processing according to the display capability of the extension telephone set to be displayed, and the number of vertical / horizontal dots of the facsimile signal is determined by the dot matrix display 6 attached to the extension telephone set 1. Matches the number of dots in the vertical / horizontal direction. Therefore, if the facsimile signal is transmitted to the corresponding extension telephone 1 via the transmission line, the display becomes possible.

The facsimile signal generated by the facsimile control unit 40 is transmitted to the extension control unit of the extension unit 20.
It is sequentially passed to the voice / facsimile multiplexing control unit 22 via 23. The voice / facsimile multiplexing control unit 22 sets this signal in the facsimile field of the data string to be transmitted to the extension telephone 1, and transmits it to the extension telephone 1 via the extension interface unit 21.

At the time of this transmission, the voice / facsimile multiplexing control unit 21 performs signal multiplexing processing of the facsimile signal and the call voice signal. In this multiplexing, as will be described later, since the facsimile signal is transmitted using the facsimile field dedicated to the facsimile signal and the voice signal is transmitted using the voice field dedicated to the voice signal, the facsimile signal is transmitted to the other party. There is no fear of being affected by the operation of transmitting a voice signal for conversation. Therefore, it becomes possible to simultaneously display a facsimile signal on the extension telephone while talking with the other party.

Now, in the extension telephone 1, this signal sequence is set to P
It is received via the BX interface unit 5, and then passed to the voice / facsimile multiplexing control unit 4. Upon recognizing the facsimile field, the voice / facsimile multiplexing control unit 4 extracts the facsimile signal set in the facsimile field and transfers it to the display display control unit 7. The display display control unit 7 writes the received facsimile signal in the display memory 8 corresponding to the display position of the dot matrix display 6. The facsimile signal written in the display memory 8 is then displayed as a visible image on the dot matrix display 6 by the periodic read operation of the display display control unit 7.

Here, the extension telephone 1 and the private branch exchange 80
An example of the signal multiplexing control method between and will be described with reference to FIG. FIG. 2 shows a signal sequence when a voice signal and a facsimile signal are multiplexed and transmitted. As shown in this figure, the transmitted signal train is composed of a voice field for transmitting a voice signal and a facsimile field for transmitting a facsimile signal. The signal format of each field is, as shown in FIG. 3, a start code indicating the start of the field, a field identification code indicating the information identification of the field, a voice signal or a facsimile signal,
And a stop code.

FIG. 4 shows a signal train for multiplexing and transmitting a voice signal, a facsimile signal and a command signal. FIG. 5 shows the signal format of the command field.

Further, FIG. 6 shows the code assignment of the "field identification code" for identifying whether it is a voice field, a facsimile field, or a command field and its meaning.

In FIG. 2, the audio signal is 8 bit / 8K.
It is encoded with a PCM code sampled at Hz. In this case, the signal band Fvox is 6 as shown in the following equation.
4 Kbps is required.

Fvox = 8 bits × 8 KHz = 64 Kbps Further, since the voice signal is required to have a real time property,
When transmitting a signal train from the private branch exchange 80 to the extension telephone 1, the private branch exchange 80 controls so that this 64 Kbps is always kept constant. On the other hand, since the facsimile signal is a signal stored in the private branch exchange 80, real-time property on the transmission path is not required. The signal band Ffax of the facsimile signal affects the display display time of the extension telephone 1, and the wider the band, the faster the display time. On the contrary, if you narrow the band, that much,
Display time is slow. In the embodiment of FIG. 2, the same band as the voice signal is assigned to the facsimile signal.

The total band F of the multiplexed signal train is as follows.

F = (Fvox + Ffax) × framing rate = (64 Kbps + 64 Kbps) × (start code bit number + field identification code bit number + signal bit number + stop code bit number) / signal bit number = 128 Kbps × (1 + 2 + 8 + 1) / 8 = 128 Kbps × 1.5 = 192 Kbps It suffices that the transmission speed between the extension telephone and the private branch exchange is a speed equal to or higher than the entire signal band F. Note that this band has both directions.

Next, the transmission of the command signal will be described. FIG. 4 shows a signal sequence when a voice signal, a facsimile signal and a command signal are multiplexed and transmitted. Since voice signals are required to have real-time characteristics on the transmission path, the command field for multiplexing commands is shown in FIG.
As shown in FIG. 5, the data is inserted in the field position for transmitting the facsimile signal which does not require the real-time property on the transmission path. The transmission delay caused by the insertion of the command field has an effect of delaying the subsequent display time of the facsimile signal of the extension telephone 1 by the delay time. However, the transmission delay time Tdel in the transmission path of the entire band is as follows: Tdel = 1 information amount of one field × transmission time / bit = 12 bits × 5.2 = 62.4, which almost affects the delay of display time There is no.

Due to such multiplexing, the voice signal, the facsimile signal and the various command signals are transmitted without adversely affecting each other. As a result, while talking with the other party, the facsimile signal stored in the private branch exchange 80 is read and displayed on the display 6, and at the same time, the button on the panel section 9 is operated to give an operation command at this time. Can be transmitted to the private branch exchange 80.

In the embodiment of the present invention, the facsimile signal stored in the facsimile storage unit 44 is sent to the extension telephone 1.
It is possible to output to the designated facsimile device 70 by the operation from. This operation will be described below.

First, when the handset 11 of the extension telephone set 1 is picked up, the telephone control unit 10 of the extension telephone set 1 recognizes this and transmits a hookup notification command to the private branch exchange 80. This hookup notification command is set in the command field of the data string to be transmitted to the private branch exchange 80 in the voice / facsimile multiplexing control unit 4,
After that, it is transmitted to the private branch exchange 80 via the PBX interface unit 5. The private branch exchange 80 receives this signal sequence via the extension interface unit 21 of the corresponding extension unit 20, and further passes it to the voice / facsimile multiplexing control unit 22. Voice / facsimile multiplexing controller
22 recognizes the command field from this signal sequence and passes the information to the extension control unit 23. Extension control unit receiving this
23 recognizes that it is a hookup notification command,
The button operation from the extension telephone 1 is permitted.

Next, when the facsimile transfer command and the telephone number of the output destination facsimile 70 are designated by the button operation on the panel section 9 of the extension telephone 1, the information is set in the preceding command field and the private branch exchange 80
Sent to. In the private branch exchange 80, this signal sequence is passed to the voice / facsimile multiplexing control unit 22 via the extension interface unit 21 of the corresponding extension unit 20, and the voice / facsimile multiplexing control unit 22 receives the signal sequence from this signal sequence. The command field is recognized and the information is passed to the extension control unit 23. Upon receiving this, the extension control unit 23 recognizes that it is a facsimile transfer command, and issues a facsimile signal transfer command to the central control unit 50 together with the received information.

The central control unit 50 checks whether or not the facsimile signal corresponding to the telephone number of the extension telephone 1 stored in the telephone management information storage section 51 is stored, and when the accumulation of the facsimile signal is recognized, the facsimile signal is stored. Facsimile control unit by taking out the signal control number from this
The facsimile signal management number is passed to the telephone 40 together with the telephone number of the designated destination facsimile 70, and a facsimile signal transfer command is issued.

The facsimile control unit 40 first calls the facsimile 70 by the analog control unit 60. When a connection response from this facsimile 70 comes,
Facsimile control unit from analog control unit 60
A connection completion response is passed to 40. Receiving this, the facsimile control unit 40 changes the facsimile signal storage unit.
The corresponding facsimile signals stored in 44 are sequentially taken out, the facsimile communication control unit 41 and the facsimile modem 45 are activated, and the facsimile communication with the facsimile device 70 is executed.

When the facsimile communication is completed, the facsimile control unit 40 notifies the central control unit 50 of this. Receiving this, the central control unit 50 deletes the facsimile management number stored in the telephone management information storage unit 51 and issues a facsimile signal transfer completion command to the extension telephone 1. Upon receiving this command, the extension telephone 1 turns off the facsimile incoming lamp attached to the panel unit 9.

In the above embodiment, the transfer destination facsimile machine 70 is specified by operating the extension telephone 1. However, a method of registering the telephone number of the transfer destination facsimile machine 70 in the telephone management information storage unit 51 in advance is also possible. is there. According to this method
It is not necessary to specify the transfer destination facsimile from the extension telephone 1.

In addition, the dot matrix of the extension telephone 1
After displaying the facsimile signal on the display, by operating the panel unit 9, it is possible to designate arbitrary cut-out coordinates of the displayed facsimile signal and to enlarge the image of that portion. This operation is performed as follows.

First, the coordinate designating button on the panel portion 9 of the extension telephone 1 is operated to designate the cutout range of the sitting image. The extension telephone set 1 transmits the coordinate information obtained when the coordinates are designated and the facsimile signal cutout command to the private branch exchange 80. This command is set in the command field and transmitted to the private branch exchange 80. Private branch exchange 80
Receives this signal sequence via the extension interface unit 21 of the corresponding extension unit 20, and further passes it to the voice / facsimile multiplexing control unit 22. The voice / facsimile multiplexing control unit 22 recognizes the command field from this signal sequence and passes the information to the extension control unit 23. Upon receiving this, the extension control unit 23, when recognizing that the command is a facsimile signal cutout command, informs the central control unit 50 of the content to that effect.

The central control unit 50 checks whether or not the facsimile signal corresponding to the telephone number of the extension telephone set 1 stored in the telephone management information storage unit 51 is stored, and if stored, the facsimile signal management number is stored. Then, the facsimile signal management number is sent to the facsimile control unit 40 together with the display capability information and the telephone number of the extension telephone 1 to be transmitted, and a facsimile signal cutout command is issued.

Facsimile control unit 40 that received a command
First, the facsimile signals accumulated in the facsimile signal accumulating unit 44 are sequentially taken out, converted into a bit map signal by the facsimile signal compressing / expanding unit 42, and then a clipping operation is performed based on the designated clipping coordinate information. . Subsequently, the facsimile signal size conversion unit 46 performs image reduction conversion processing according to the designated display capability of the extension telephone 1. The facsimile signal thus obtained is transmitted to the extension telephone 1 via the extension unit 20 to which the extension telephone 1 is connected. The facsimile signal transmission operation to the extension telephone 1 and the display operation in the extension telephone 1 are the same as those of the above-mentioned facsimile signal display command.

[0058]

As is apparent from the above description of the embodiments, in the voice / facsimile integrated exchange system of the present invention, the facsimile signals transmitted from the other party at the same time by operating the extension telephone while talking with the other party. Can be displayed on the extension telephone immediately on the spot.

Further, by operating the extension telephone, the facsimile signal stored in the facsimile storing means can be output as a FAX as necessary and at a necessary place.

Further, the image size can be converted and the image cut-out processing can be performed according to the display capability of the extension telephone, and extension telephones having different display capabilities can coexist in one system. Therefore, it is possible to construct a system according to the scale or operation form of the user.

Further, by cutting out the image, a part of the image can be enlarged and displayed, and it becomes possible to display extremely finely even a fine image.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a voice / facsimile integrated exchange system according to an embodiment of the present invention,

FIG. 2 is a diagram showing a signal sequence in which a voice signal and a facsimile signal are multiplexed by the multiplexing method in the system of the embodiment,

FIG. 3 is a transmission format diagram of a voice signal or a facsimile signal in the system of the embodiment,

FIG. 4 is a diagram showing a signal sequence in which a voice signal, a facsimile signal, and a command signal are multiplexed by a multiplexing method in the system of the embodiment,

FIG. 5 is a transmission format diagram of a command signal in the system of the embodiment.

FIG. 6 is a diagram showing allocation of field identification codes in the system of the embodiment.

[Explanation of symbols]

 1 Extension telephone 2 Voice signal amplifier 3 Voice signal A / D / D / A converter 4 Voice / facsimile signal multiplexing control unit 5 PBX interface unit 6 Dot matrix display 7 Display display control unit 8 Display memory 9 Panel unit 10 Telephone Control unit 11 Handset 12 Speaker 13 Microphone 20 Extension unit 21 Extension interface unit 22 Voice / facsimile signal multiplexing control unit 23 Extension control unit 30 Outer line unit 31 Outer line interface unit 32 Voice signal A / D / D / A converter 33 Outer line control Part 40 Facsimile control unit 41 Facsimile communication control part 42 Facsimile compression / expansion part 43 Facsimile signal storage control part 44 Facsimile signal storage part 45 Facsimile modem 46 Facsimile signal size conversion part 47 Facsimile signal cutout part 50 Central control unit 5 1 Telephone management information storage unit 52 Master CPU 60 Analog control unit 80 Private branch exchange device 70 Facsimile device 90 Internal bus

Claims (7)

[Claims] 1. A voice / facsimile integrated exchange system comprising a private branch exchange for performing a voice signal / facsimile signal exchange process, wherein the private branch exchange has a signal multiplexing / demultiplexing function for demultiplexing a voice signal and a facsimile signal. Means, a facsimile communication control means for performing facsimile communication control, and a facsimile storage means for storing facsimile signals, and a voice input / output means, a voice signal and a facsimile signal are provided in an extension telephone connected to the private branch exchange. A signal multiplexing / separating means for demultiplexing the same and a facsimile signal displaying means for displaying a facsimile signal are provided, and the digitally multiplexed voice signal and facsimile signal are the same between the private branch exchange and the extension telephone. Voices characterized by being configured so that they can be transmitted simultaneously by the Facsimile integrated exchange system. 2. The private branch exchange apparatus stores a telephone number storage means for storing a correspondence between telephone number data of the extension telephone and a facsimile telephone number, a designated number when an incoming call is received and the telephone number storage means. And a telephone number comparing means for comparing the facsimile telephone number with the facsimile number, and when there is an incoming call to the matching facsimile number in the comparison of the telephone number comparing means, after storing the facsimile data in the facsimile storing means, 2. The integrated voice / facsimile exchange system according to claim 1, wherein the extension telephone corresponding to the facsimile telephone number stored in the telephone number storage means is notified of the arrival of the facsimile. 3. The extension telephone set is provided with an operation button for requesting the private branch exchange to call the facsimile signal stored in the facsimile storage means, and the extension telephone set during the voice call or non-call of the facsimile signal. 2. The voice / facsimile integrated exchange system according to claim 1, wherein the system is adapted to be displayed on said facsimile signal display means. 4. The extension telephone is provided with an operation button for requesting the private branch exchange to output the facsimile signal stored in the facsimile storage means to the facsimile, and the extension telephone is in a voice call or a non-call. The voice / facsimile integrated exchange system according to claim 1, wherein the facsimile signal is output to the facsimile device. 5. The private branch exchange device, after outputting the facsimile signal stored in the facsimile storage means to the facsimile device, notifies the extension telephone of completion of output. Voice description
Facsimile integrated exchange system. 6. The voice / facsimile integrated exchange system according to claim 1, wherein the private branch exchange is provided with image size conversion means for performing image size conversion processing according to the display capability of the extension telephone. . 7. The voice / facsimile integrated exchange system according to claim 1, wherein said private branch exchange device is provided with an image cutout means for performing an image cutout process in accordance with an operation of said extension telephone.