JPS58165452A - Facsimile exchange system - Google Patents

Abstract

PURPOSE:To eliminate the need for the repetition of retransmission from a transmission terminal, by receiving a telegraphic message transmitted from a transmission terminal at a facsimile storage exchange for a reception terminal tentatively even when it is in use, and transmitting the message automatically when the reception terminal is free. CONSTITUTION:A CPU of a line exchange detecting that a remote terminal R is busy, selects a link (a) between a T and an SF, and selects and connects a link (b) between an RGT and the SF and displays the incoming to the SF. When the response from the SF is returned, the CPU detects the response of the SF via the RGT and connects the link (a) between the T and the SF. Then, the T makes operation as if it were connected to the R. The picture data from the T passes through an LCCO and an SAL in the SF, is transmitted to a picture data storage section PXC, and information at the reception terminal is transmitted to a CSC in the SF via a storage device controller SFC from the CPU and managed in the CSC.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a factor exchange system in which facsimile terminals are interconnected via a line exchange.

Conventionally, facsimile terminals were connected to each other via lines! In the facsimile exchange system that connects Wk via Iso.

Get it! If the facsimile terminal device is in use and cannot be continued, the sender's facsimile terminal will wait until the receiver's facsimile terminal is empty and send the letter I11! I felt safe asking for help.

However, such a factor exchange method inevitably inconveniences the user as it is necessary to repeat the request for sending 91 charges until the incoming fax machine responds. All processing is performed, leading to an increase in the load on the control device.

The object of the present invention is to provide a facsimile terminal &! If the phone cannot respond because it is in use,
Weird F! IIklI& automatically becomes 1! ! Ig111! The f! Accumulate well and receive facsimile terminal S! When the pupil becomes empty, the circuit switch automatically connects the facsimile storage/exchange Ken Minato and the receiver's Fuchori Simiri terminal phlegm Pupil, and sends it to the desired receiver's facsimile terminal V device! An object of the present invention is to provide a facsimile exchange system that can uniformly receive data from a facsimile terminal device.

The present invention provides a facsimile storage/exchange terminal connected to the incoming and outgoing terminals of a network of a line exchange that accommodates a facsimile terminal 1, and a central control means, which is detected by the line change W& machine. Got 1! facsimile terminal
Due to the iam blockage, connection change to facsimile storage/exchange power reduction and facsimile storage exchange! ! It conveys information to the receiver I, and causes the facsimile storage converter I to act as a pseudo facsimile receiving terminal and sending device.Receiver 1:,',l'','

The mission is to use the entire system efficiently for one year, using military expenses to retransmit operations based on the basic pattern of the pupil of the facsimile terminal 1''.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. IFII is a block diagram showing an example of the facsimile exchange system according to the present invention, and the reference numeral EX in the figure indicates the communication path network CPU of the line exchange is a central control means.

IOT is the local trunk, ORT is the originating register trunk, RGT is the calling trunk, LC is the line circuit, 8F is the facsimile storage and exchange port 111.8FC is the storage equipment controller, and T is the sending facsimile Mizusuesu IF (hereinafter referred to as
Send it! The input device referred to as a terminal is a fax terminal located on the receiving side (
(hereinafter referred to as a receiving terminal).

First, an outline of the process from the call origination of the connection state of the line exchange to the end of communication when a message is transmitted from the transmitting terminal T to the receiving terminal and R is in an empty state will be described below. First, the %T or 50 call is passed through the line circuit LC; the central control means CPU then outputs T and the call register □.

Performs a link selection connection between Metrun 0 and T.

Upon receiving the destination selection signal from I9T at 0ftT.

The CPU checks the usage (empty) status of 9R based on the number information. If R is empty, a known exchange process is used to select a link in the communication path network EX between T and the local trunk IOT and a link between R and the calling trunk RGT W! Perform dawn and perform link selection between R and l0T-. Next, the RGT sends a calling signal to the box 1
Displays incoming calls.

When R returns a response to the p11m indication, the DPU detects the normal response via RG'l', disconnects the link between R and RGT, and connects the link between R and IOT. do. In this way, a bond is formed between T and R, and communication begins. When communication ends, IO disconnection notes from T
Detected by T, the PCPU then disconnects both the link between T and IOT and the link between IOT and R, and terminates the security.

Next, an example of the proxy 4gN of the facsimile storage and forwarding device 8F when the receiving terminal ratio is in use, which is realized by the invention of (g), will be described below. The exchange process in which the CPU first detects a call from T through the LC and receives R's selection signal at the ORT is the same as described above. If the desired B here is communicating with T in the pond, that is, in use, conventionally the CPU
Issued 9! Terminal T was notified of this and the exchange processing operation was terminated. That is, when transmitting the message to the other party's terminal R, it was necessary to repeatedly call again from T until the busy state is released. However, according to this embodiment, the CPU of the line exchange that detects that the other terminal is in use selects the link between T and 8F, and selects the link between R and 8F.
A link b selection connection is made between GT and 8F, and a destination gI indication is made to 8F. In other words, to explain in detail with reference to FIG. 2 showing the detailed configuration of the facsimile storage and exchange sputum @81, when an incoming call is displayed from RG'I' of the line crossing l1lI bale, the line control unit Detected by LCCOK, reception preparation request signal is sent from LCCQ to signal analysis 11s8AL and circuit switching Awayuki interface unit CTC.
can be conveyed to. 8AL analyzes the water absorption signal, and if it can be received, responds gIJl! Sends a sending request to the LCCO. LCCOa This will return a response signal to the switch once - depending on the operation of 0 or more. When a response is returned from 8F, the CP
It ejects a response of 8 F via UFiRGT, and sends a response of T and 8.
Connect and form link a between F and F. Due to this, T is R
The image data from T is transmitted to the p1 image data storage unit PXC through LCCQ and 8AL in SF, and the receiving terminal information is sent from the CPU to the storage Minato Electric co/controller. 8 C in SF via FC
It is transmitted to 8C and managed there. All image data from T is stored in the PXC until mvka is completed. T
sends a message f8 When L is finished, disconnects to EX 9N
Each disconnected issue is detected by the LCCO on the 8th floor, and the message completion display number is from l-Ce□ to f9AL, and then P
This will be communicated to XC and C8C. A disconnection detection signal is transmitted from the C8C to the CPU via the SFC. Besides, I J.
Link a between T and SF is cut, and the pass-through ends.

-1% (b) Line exchange Iso's CPU is unsupported! '-terminus R
is in use □:1:・:: After recognizing that it is! , - Starts monitoring for TeH, and when the busy state is released, secures the free space/space C1- connecting 8F and R in advance, and sends a call signal depending on the quantity ratio of RG '1'. At the same time, C is displayed.
The PU transmits the selected line number, receiving facsimile terminal information, and sending preparation signal to the Sr (C8C) via the SFC.
, 8AL and LCCQ to transmit preparation signals to station 1.
The R@ response to the 1 display is transmitted to the CPU via the RGT, and the ePU sets up a communication path based on the link secured in advance, and sends 8FKIL 1! Send out the water newsletter. The sending instruction request and notes are transmitted to C8C in 8F through 8FC, and based on this, an instruction to start sending is given to C3CFi, PXC, 8AL, and LCCO along with the sending of receiving-biased facsimile IJ terminal information. When the PXC receives the transmission start instruction, it searches for the received 1st day * based on the readiness facsimile i +7 terminal information t-, and sends it to the EX style via 8AL and LCCO.

Image data sent from 8F:: is sent to the desired destination via link C of EX.

・11111 The end of sending bias is detected in Sr'li P
From AL, history is passed on to LCCO. The C8C, which has received the transmission end signal from the PXC, transmits the transmission end signal together with the selected line number to the CPU through the 8FC. Based on the CPU receiving the end of transmission from 8F, it disconnects the link C between R and 8F, and transmits a disconnection completion signal to 8F through 8FC at a crossroads.

8F receives a disconnection example signal from the CPU at C8C, notifies PXC, SAL, and even LCCQ of disconnection redundancy, and ends all operations.

As explained above, according to the present invention, send fi! I terminal (
Even if the receiving terminal (R) is in use, messages sent from T) are temporarily received on behalf of the facsimile storage and forwarding device, and can be automatically sent when the receiving terminal becomes empty. , send! There is no need to repeat the retransmission operation from the terminal. Furthermore, since the connection processing by the central control device is not invalidated, the efficiency of the entire system can be improved.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an implementation sequence of the facsimile exchange method according to the present invention, and Fig. 2 shows the facsimile storage and exchange in Fig. 1! ! 4111 is a diagram showing the details of the pupil. EX...Call network of circuit exchange, CPU...
・・・Central control Ill, IOT, , , Local trunk, ORT ・・・Outgoing register trunk, RG
T...Call number 7, 8F...Facsimile storage exchange Minato, 8FC...Storage vcWI
Co/Troller, LC... Line times @%T...
... Sending gI facsimile terminal device, R...
Get it! Side facsimile terminal *w, LCCQ~LCCn・
...O1! 1ml system part, 8AL... Signal analysis department, PXC... Squadron data accumulation y5. c.
sc......Line switching board/interface section. 1-・, S /-□, 1 S ・1: δFC″, th?(2)

Claims (1)

[Claims] Facsimile terminal i! In the facsimile communication method in which Oki Seki's 1lii image data is exchanged via a line switch,
The same sentence as the input and output terminals of the communication line network of the circuit switch S.
A facsimile storage and exchange unit is provided which is connected to the central control means of the I/4 frame, and which records the basic status of the receiving side of the terminal device.
, the Chuki facsimile storage and exchange device is # controlled by the central control means! > Temporarily accumulates the image data from the transmitting side of the # terminal device via the third terminal device, and # registers (after the first terminal & device transitions to the empty state, the third storage image key The data is sent to the receiving II terminal 1!fil through the communication channel network.
A factor exchange method characterized by sending out K.