JPH0759029B2 - Image communication device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image communication apparatus represented by a facsimile machine, and particularly to image communication between an extension terminal and a general outside line terminal connected via a private branch exchange. Relates to a device used in.

2. Description of the Related Art Facsimile machines are generally used by connecting directly to an outside line (station line), but in large-scale business establishments equipped with a private branch exchange (PBX), there are cases where a facsimile machine is connected to an extension line and used. In that case, there is no problem in the internal communication between the facsimile machines connected to the extension line (hereinafter referred to as extension terminals), but between the extension line terminal and the external line terminal (external facsimile machine connected to the external line). Communication had the following problems.Problems to be solved by the invention. In addition, in the PBX, the operator switches the line in response to an incoming call from an outside line, so it is possible to connect directly from an outside line terminal to an extension line terminal. Can not. Therefore, an external line terminal (referred to as an external line terminal on the premises) is also provided on the premises, and a system is adopted in which an external external line terminal transmits to the external line terminal on the premises. In this case, the sender makes a separate telephone call to the original transmission partner and informs the private branch line terminal that the communication message has been sent, which is very troublesome, and the communication message does not reach the original communication partner. There is a problem that it takes time to complete.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to enable time and cost efficient image communication between an extension terminal and an outside terminal.

In order to solve the above-mentioned problems, the present invention has a communication control unit for connecting to a public telephone line network that allows terminals to communicate with each other via a line and a private branch exchange having an extension terminal below. And a storage unit that stores the destination information and the image information of the extension terminal set in a non-standard procedure signal in the facsimile communication procedure received from the terminal by the communication control unit, The control unit controls the transmission of the image information to the extension terminal indicated by the destination information stored in the storage unit.

Further, in order to solve the above-mentioned second problem, the present invention provides a communication control unit that connects to a public telephone line network that allows terminals to communicate with each other via a line, and a private branch exchange that includes an extension terminal at a lower level, and a communication control unit. A detection unit that detects the destination information of the extension terminal set in the non-standard procedure signal in the facsimile communication procedure from the terminal received by the control unit, and the detection unit detects the destination information. A transmission unit for transmitting the image information and the destination information as a pair to the extension terminal indicated by the destination information, and a recording unit for printing out the image information when the detection unit does not detect the destination information. It has a configuration.

Function The present invention is such that the destination information and the image information set in the non-standard procedure signal in the facsimile communication procedure transmitted via the public telephone line network by the above-described first configuration are temporarily stored in the storage unit, and then the destination information is stored. Is transmitted to the extension terminal.

Furthermore, the present invention includes a detection unit for detecting the destination information set in the non-standard signal in the facsimile communication procedure according to the above-described second configuration, and when the detection unit detects the destination information, the extension indicated by the destination information is displayed. When the detection unit does not detect the destination information, it is printed out from the recording unit.

First Embodiment FIG. 1 is a schematic diagram of a communication system using the device of the present invention. The PBX2 is connected to the line (outside line) of the public telephone line network 1, the extension terminals 3a, 3b, 3c of the PBX2 and the telephones are connected,
Image communication between these extension terminals 3a, 3b, 3c and the outside outside terminal 5 is performed by relaying the inside / outside combined terminal 4 as an embodiment of the image communication apparatus of the present invention.

The terminal 4 also serving as an inside / outside line is installed in a premises where the PBX 2 is located, is connected to the inside line and is directly connected to the outside line, and also has a function as an independent facsimile device by itself.

FIG. 2 shows the structure of the terminal 4 for both internal and external lines. This apparatus includes a communication control unit 6 that controls line connection for both extension lines and outside lines and also controls facsimile transmission.
An image reader 7 for reading the image information of a transmission document, an image printer 8 for printing the image information on paper, an image information storage unit 9 for temporarily storing the image information, and a DTMF input from an extension line or an outside line. A DTMF signal detection unit 10 for detecting a signal, a destination storage unit 11 for temporarily accumulating destination information transmitted by a DTMF signal from a transmission source, an operation unit and a display unit as a man-machine interface. Controls the entire console 12 and the device and performs data processing
It has a CPU (central processing unit) 13.

FIG. 3 is a flow chart of relay reception processing by the terminal 4 which also serves as an internal / external line, and FIG. 4 is a flow chart of relay transmission processing similarly.

First, the relay reception process will be described with reference to FIG. In the standby state, the communication control unit 6 waits for an incoming call from an internal line or an external line (steps 301 and 302). When there is an incoming call from an extension, the line is connected and the caller, for example, an extension terminal
It responds by sending a called terminal identification signal (CED), a non-standard function identification signal (NSF), a digital identification signal (DIS), etc. to 3a (step 303). When an incoming call from an outside line is detected, the line is connected to the outside outside line terminal 5 on the calling side.
CED, NSF, DIS, etc. are sent and responded to (step 304).

The extension terminal 3a or the outside line terminal 5 on the calling side which has confirmed the called response from the inside / outside terminal 4 also has a non-standard function setting signal (NS
S), transmitting terminal identification signal (TSI), digital command signal (DCS), etc.
Send destination information by DTMF signal. That is, in the case of the extension terminal 3a, the telephone number of the external terminal 5 that is the transmission partner is transmitted as the destination information, and in the case of the external terminal 5, the extension number of the extension terminal 3a, 3b, or 3c that is the transmission partner is transmitted as the destination information. To do.

In the terminal for both internal and external lines, line input is introduced into the DTMF detecting unit 10 in step 305 to detect the destination information sent by the DTMF signal from the calling side. If the destination information is not sent, it is determined that the terminal 4 for both inside and outside lines is the destination, and the image information sent after that is received and printed by the image printer 8 (step 306). → 309).

When the destination information from the calling side is detected, the decoded destination is stored in the destination storage unit 11 (step 306 → 307),
After that, a reception preparation confirmation signal (CFR) is sent, the image information sent next is received, and the image information is stored in the image information storage unit 9 in association with the destination.

The above is the relay reception process. Next, a relay transmission process for transferring the image information accumulated in the storage unit 9 to the designated destination will be described with reference to FIG.

First, the destination storage unit 11 is searched, and if the destination information is stored there, the first one of the destination information arranged in the order of reception is picked up, and the corresponding image information address is entered in the transmission list. Yes (Step 40
1 → 402 → 403). Next, it is checked whether or not the same number as the destination information (number) is registered in the storage unit 11, and if there is the same destination, the address of the image information is set so that the corresponding image information can be transmitted at the same time. Fill in the transmission list (step 404 → 405).

Next, a call is made to the picked up destination. As is clear from the above explanation, the destination information corresponds to the telephone number corresponding to the outside line terminal 5 and the extension line terminal 3a or 3b or 3c. Since there is an extension number, a call is made for an outside line or an extension line according to the type of the picked up destination (steps 406, 407, 408). When the called terminal responds to this call and the line is connected, the image information whose address is entered in the transmission list is sequentially taken out from the storage unit 9 and transmitted (steps 409 → 410). The transmission of the image information is completed, and the line is disconnected by exchanging the procedure end signal (EPO), the message confirmation signal (MCF) and the disconnection command signal (DCN). At this stage, the destination picked up from the destination storage unit 11 is erased, and the first step 401 is executed again. In this way, relay transmission is performed for all destinations registered in the destination storage unit 11.

The present invention can be applied to other types of communication such as polling communication and reverse polling communication in the same manner as described above.

As described above in detail, according to the image communication apparatus of the present invention, the image information together with the destination information set in the non-standard procedure signal in the facsimile communication procedure from the terminal via the public telephone line network is used. Is received and stored in the storage unit,
After that, to send to the extension terminal indicated by the destination information,
Image information can be directly transmitted from a terminal via a public telephone line network to an extension terminal located below the private branch exchange. Also, by providing a detection unit that detects the destination information, image information with destination information can be transferred to that destination, and image information without destination information can be received and printed out. It is possible to obtain the effect that both the functions of the repeater and the receiver can be achieved by one image communication device.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a communication system using the device of the present invention, FIG. 2 is a block diagram of an internal / external line combined terminal which is an embodiment of the image communication device of the present invention, and FIG. FIG. 4 is a flowchart of the relay receiving process by the terminal, and FIG. 4 is a flowchart of the relay transmitting process.

Continuation of front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display area H04N 1/21

Claims (2)

[Claims] 1. A communication control unit connected to a public telephone line network for communicating terminals via a line and a private branch exchange having an extension terminal at a lower level, and a facsimile from the terminal received by the communication control unit. A storage unit for storing the destination information and the image information of the extension terminal set in the non-standard procedure signal in the communication procedure as a pair, and for the extension indicated by the destination information stored in the storage unit. An image communication apparatus, comprising: a control unit that controls the transmission of the image information to a terminal. 2. A communication control unit connected to a public telephone network for communicating terminals via a line and a private branch exchange having an extension terminal at a lower level, and the terminal received together with image information by the communication control unit. Detecting unit for detecting the destination information of the extension terminal set in the non-standard procedure signal in the facsimile communication procedure from the above, and the image information and the destination information when detecting the destination information by the detecting unit. An image communication apparatus comprising: a transmission unit for transmitting the image information to the extension terminal indicated by the destination information, and a recording unit for printing out the image information when the detection unit does not detect the destination information.