JPH01194632A - Facsimile store and forward switching system - Google Patents

Abstract

PURPOSE:To notify a facsimile terminal side that a store and forward switching system is under incoming call regulation by transmitting a line disconnecting instruction from the store and forward switching system to the facsimile terminal when the incoming call is generated from the facsimile terminal to the store and forward switching system under an incoming call regulated condition. CONSTITUTION:Facsimile terminals 11-1n are connected through a line exchange 3 to a store and forward switching system 4 and a facsimile terminal 21 is directly connected to the system 4. When a transmitting button is operated by the facsimile terminal 21, a main control part 43 is notified of the incoming call. At such a time, however, when the incoming call is regulated in the system 4, a disconnecting request is sent to a line control part 42, and the line control part 42 transmits a line disconnecting instruction signal DCN instead of a called station identifying signal CED or a digital identifying signal DIS (or nonstandard device signal NSF). When the signal DCN is received, the facsimile terminal 21 carries out alarm displaying, and disconnects the line. The operator of the facsimile terminal 21 can recognize that the exchange is under the incoming call regulation by the alarm displaying.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a facsimile storage and forwarding system in which an alarm is displayed to a facsimile terminal operator indicating that the store and forwarding device is restricting incoming calls.

[Conventional technology]

Until now, as shown in Japanese Patent Application Laid-Open No. 60-114062, a device in which a PB telephone was connected to a zero-liter facsimile terminal was used to send image data.
After calling the store and forwarding device using the FB telephone, the user specifies the service type using the PB double signal, listens to a confirmation tone, and is then switched to the facsimile terminal. In this case, if the storage and forwarding device is in the process of restricting incoming calls, the facsimile terminal operator is notified of this via a restriction sound.

[Problem to be solved by the invention]

However, if a facsimile terminal that supports only a specific service is connected to the direct line, there is no need to specify the FB fault signal service type, and image data can be sent immediately by simply operating the facsimile transmission button or one-touch button. This is possible, and since the telephone is not used, the incoming call restriction tone will not be heard by the operator. That is,
If you try to automate the procedure for switching to a facsimile terminal when a PB telephone is equipped, using one-touch dialing built into the facsimile terminal, the facsimile will emit a restriction sound indicating that the store-and-forward device is restricting incoming calls. There was a problem in that the facsimile terminal operator did not know that incoming calls were being restricted because the terminal operator could not hear the call.

An object of the present invention is to provide a facsimile store-and-forward system that allows the facsimile terminal to know that the store-and-forward device is restricting incoming calls even when the GII facsimile terminal is connected to the store-and-forward device via a direct connection line.

[Means to solve the problem]

The above problem is that when the facsimile terminal sends image data,
Digital identification signal DIS, which is an M standard control signal
, or instead of receiving the non-standard equipment signal NSF,
When receiving the line disconnection command DCN, the storage/forwarding device recognizes that the incoming call is restricted and displays an alarm.

[Operation] When a call arrives from a facsimile terminal to a storage and forwarding device that is in a call restriction state, the storage and forwarding device sends a line disconnection command DCN to the facsimile terminal in place of a certain procedure signal, and based on this, the facsimile terminal By displaying an alarm, the facsimile terminal operator is notified that the storage and forwarding device is restricting incoming calls.

〔Example〕

The present invention will be explained below with reference to FIGS. 1 to 3.

First, the positioning and configuration of the storage and forwarding device in the facsimile storage and forwarding system according to the present invention will be explained. As shown in FIG.
In addition to being connected to the facsimile terminals 11 to 1n via the facsimile terminal 21, the facsimile terminal 21 is directly connected to the storage and forwarding device 4. Facsimile terminal 11-In, 21
The facsimile image information from each is sent to the line control unit 41 and 42.
The image data is stored in the image data storage device @44 under the control of the main control unit 43, and then transmitted to the destination facsimile terminal at any time.

First, with reference to FIG. 3, a case will be described in which two pages of facsimile image information are transmitted from the facsimile terminal 21 when the storage and forwarding device 4 is not in call restriction mode. The sequences shown in FIG. 3 and FIG. It has become.

As shown in FIG. 3, when the send button (or similar button) is operated on the facsimile terminal 21, the line control section 42 detects an incoming call by forming a loop current, and the main control section 45 receives the incoming call. Based on the sum of 0 incoming notifications that are to be notified, the main control unit 43 secures an area for the received image data in the image data storage device 44 and sends a CI procedure start request to the line control unit 42. The 6-line control unit 42 starts the G1 procedure and sends the called station identification signal Cl1tD and the digital identification signal DIS(
Alternatively, after transmitting the non-standard device signal NSF'), the facsimile terminal 21 receives the pre-digital command No. 48 DO8 (or the non-standard device setting signal N5S), and further receives the training check signal TCP. . If training is normal, receive readiness confirmation signal CF
After transmitting R, the facsimile image information of the first page is received from the facsimile terminal 21.

After that, the multi-page signal MPS is received, and the main control unit 43
At the same time as sending the facsimile image information of the first page to
K so that a page reception completion notification is sent to the main control unit 43.
It has become. The main control section 43 stores the facsimile image information of the first page in the image data storage device 44 and then sends a storage completion report to the line control section 42.
The line control unit 42 recognizes that the first page has been received normally and sends a message confirmation signal MC to the facsimile terminal 21.
After Fi transmission, by receiving the facsimile image information of the second page (last page) from the facsimile terminal 21 and further receiving the procedure end signal EOP, the main control unit 43 receives the facsimile image information of the last page. At the same time, a reception completion notification is also sent. After the main control section 43 stores the last page of facsimile image information in the image data storage device 44, it sends a storage completion report to the line control section 42. After recognizing that the message has been received by the facsimile terminal 21 and transmitting the message confirmation signal MCF' to the facsimile terminal 21, the facsimile terminal 21
By receiving the line disconnection command signal DCN from the main controller 43, a line disconnection notification is sent to the main control unit 43. At the facsimile terminal 21, the line disconnection command signal DCN
by a sequence of zero or more that causes the line to be disconnected (loop current disconnected) after sending
Facsimile image information from the facsimile terminal 21 is stored in the storage/exchange device 4.

Next, referring to FIG. 1, we will explain the case where incoming calls are restricted in the storage and forwarding device 4.
When the send button (or similar button) is operated, the main control unit 4 is activated in the same sequence as in the case of Fig. 5.
3 will be notified of incoming calls. However, at this time, if the incoming call restriction is delayed due to the image data storage area of the image data storage device 44 being full, etc., a disconnection request is sent to the line control unit 42, and the line control unit 44 receives a disconnection request.
2, called station identification signal CED1 digital identification signal DI
The line disconnection command signal DCNt- is now transmitted instead of S (or non-standard device signal N5F). When the facsimile terminal 21 receives the line disconnection command signal DCN, it displays an alarm and disconnects the line. The alarm display allows the operator of the facsimile terminal 21 to recognize that incoming calls are being restricted.

〔Effect of the invention〕

As explained above, according to the present invention, even when a facsimile terminal directly calls the storage and forwarding device to transmit facsimile image information, an alarm on the facsimile terminal indicates that the storage and forwarding device is restricting incoming calls. This has the effect of letting the operator know.

[Brief explanation of the drawing]

FIG. 1 shows a sequence according to the present invention when incoming calls are restricted in a store and forward device, and FIG. 2 is a diagram showing the positioning and configuration of a store and forward device in a facsimile store and forward system. FIG. 3 is a diagram showing a sequence when incoming call restriction is not performed in the storage and forwarding device. 11-1n... (via line exchange) Facsimile terminal 21... (directly connected) Facsimile terminal 3...
...Line switch 4...Storage and forwarding device 41...(For line switch connection) Line control unit 42
...... (for direct connection) line control section 43 ...
- Main control unit 44... Image data storage device. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. When transmitting image data from a CCITT Recommendation GII facsimile terminal to a storage and forwarding device via a circuit switch or directly without a circuit switch, the digital identification signal DIS, which is a GII standard control signal, or a non-standard device signal is transmitted. A facsimile storage and forwarding system characterized in that, when receiving a line disconnection command DCN instead of receiving an NSF, the storage and forwarding device displays an alarm indicating that incoming calls are being restricted.