JPH04309070A - G4 facsimile equipment - Google Patents

Abstract

PURPOSE:To realize communication with a G3 equipment connected to an existing telephone network of a facsimile equiopment having only G4 function. CONSTITUTION:A G4 facsimile equipment connecting to an ISDN facsimile network is provided with a storage section storing an incoming number of a transmission destination at the transmission of a picture, a storage section storing an incoming number to the facsimile network and a discrimination section discriminating the information noticed from the network and when a called terminal equipment is discriminated to be a G3 equipment by the discrimination section, an incoming number of the transmission destination is set to user information of a caller message and the facsimile network is dialed and the resulting information is sent to an opposite terminal equipment via the facsimile network.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a G4 facsimile device connected to an ISDN.

0002

2. Description of the Related Art Conventionally, when a facsimile machine having only a G4 function makes a call to a facsimile machine connected to an existing telephone network, an exchange determines that there is a protocol mismatch and the line is disconnected.

0003

[Problems to be Solved by the Invention] For this reason, in the above-mentioned conventional device, communication with the popular G3 aircraft is impaired,
The disadvantage is that the terminals that can communicate are severely limited.

[0004] The present invention provides a facsimile machine having only G4 function, which is connected to the existing telephone network.
The purpose is to obtain communication with the aircraft.

[0005]

[Means for Solving the Problems] The present invention provides, in a G4 facsimile device connected to an ISDN facsimile network, storage means for storing the called number of the destination when transmitting an image, and a It has a means for storing a number and a discriminating means for discriminating information notified from the network, and when the discriminating means determines that the called terminal is a G3 machine, the call is sent to the facsimile network. The system is characterized in that the user-to-user information of the message includes the called number of the destination, and the message is called and sent to the other party's terminal via a facsimile network.

[0006]

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

This facsimile machine includes a main control section 1 that controls the entire device, a scanner 2 that reads images, a scanner control section 3 that controls this scanner 2, a printer 4 that records images, and a main control section 1 that controls the entire device. A printer control unit 5 for controlling the printer, an operation unit 6 for the operator to perform various key operations, a display unit 7 for displaying various information, a program memory 8 for storing programs, a data memory 9 for storing data, and a Encoding/decoding unit 1 that performs conversion
0 and an ISDN line 13. Note that these units are interconnected by a bus 12.

FIGS. 2 and 3 are flowcharts showing the operation of this facsimile machine when making a call.

First, in FIG. 2, after storing the destination number input by the operator (S21), a call is made to the destination number (S22). Here, if the other party uses a G4 facsimile, the image can be sent as is. However, in case the other party is a facsimile connected to an existing telephone network, the system monitors whether the line has been disconnected from the network.

[0010] Then, when disconnection of the line is detected, the process shown in FIG.
In step S31, it is determined whether this disconnection occurred at layer 3 (S31), and if it occurred at layer 3, it is determined whether the reason for the disconnection is because the other party's aircraft is a G3 aircraft. (S32). This is done by referring to the cause in the disconnection message during the layer 3 call setup procedure.

[0011] Then, if the disconnection does not occur at layer 3 and the reason for the disconnection is other than because the other party's machine is a G3 machine, normal error processing is performed (S33). This error processing involves displaying an error message on the display unit 7, issuing a warning sound, outputting a report, and the like.

[0012] Furthermore, if the disconnection occurs at layer 3 and the reason for the disconnection is that the other party's machine is a G3 machine, the called number of the facsimile network previously stored in the memory 9 is set as the address ( S34), call message (Set
The called party number stored in S21 above is set in the user information of UP) (S35), and the call is made (S36
). Then, once the call is set up, a transmission operation is performed (S3
7), this sequence ends.

[0013] In the above embodiment, the user may be able to select in advance whether or not to make a re-call to the network.

[0014]

[Effects of the Invention] As explained above, when the called number for G4 facsimile is a terminal connected to the existing telephone network, by calling the facsimile network and communicating via the facsimile network, , G3 facsimile and can communicate with each other.

[Brief explanation of drawings]

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

FIG. 2 is a flowchart showing the operation when making a call in the above embodiment.

FIG. 3 is a flowchart showing the operation when making a call in the above embodiment.

[Explanation of symbols]

1...Main control section, 2...Scanner, 3...Scanner control unit, 4...Printer, 5...Printer control unit, 6...Operation unit, 7...Display section, 8...Program memory, 9...Data memory, 10... Encoding/decoding section, 11...Communication control unit, 13...ISDN line.

Claims (1)

[Claims] Claim 1: A G4 facsimile device connected to an ISDN facsimile network, comprising: storage means for storing a called number of the destination when transmitting an image; means for storing a called number for the facsimile network; and a determining means for determining information notified from the facsimile network, and when the determining means determines that the called terminal is a G3 machine, the user information of the calling message is sent to the facsimile network. A G4 facsimile machine is characterized in that it makes a call by entering the destination number and sends the call to the other party's terminal via a facsimile network.