JPS612449A - Multiple address communication control system - Google Patents

Abstract

PURPOSE:To smooth the increase of using efficiency and to shorten a circuit validity holding time and a connection delay time by collating sequentially terminating subscribers at fixed time intervals when a multiple address request is received from an originating subscriber to a repeating line switch board on the originating side, and after the collation of termination to all terminating subscribers, sending multiple address destination information to an accumulation/exchange processor on the originating side. CONSTITUTION:Receiving a multiple address request from a trunk I/O control device 1, an access procesing control device 3 temporally stores multiple address destination information in an accumulation buffer 5 and then sets up a circuit with an originating subscriber A. Receiving a circuit release request signal (f) from an inter-office signal I/O control device 6 after the accumulation of the picture signal (e) in the originating side accumulation/exchange processor 13, the control device 3 starts a multiple address control device 10 at a fixed time interval through a time starting device 8. The multiple address control device 10 reads out the multiple address destination information from the accumulation buffer 5 through a data bus 4, and after completing the collation of all the terminating subscribers B, sends a multiple address destination information signal (j) to the control device 6 and specifies the release of the device 8.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image signal advance storage type broadcast communication control system for an intra-network storage type facsimile communication system.

[Conventional technology]

FIG. 2 is a block diagram of a conventional broadcast communication control device. In the conventional broadcast control system of the intra-network storage type facsimile communication system, as shown in FIG. When the request signal a is received, a terminating subscriber read request signal is sent to each terminating subscriber B1-B1 based on the broadcast destination information from the originating subscriber A.

~b, is sent to the destination trunk exchange 12 to which the terminating subscriber belongs by means of an inter-office signal, and the terminating subscriber information response signals 01 to Cn are received from the destination trunk exchange 12, and the terminating subscriber B, . Verify B7. After completing the collation of all incoming subscriber information, a line setting request signal d is sent by an interoffice signal to the originating storage and conversion processing device 13 to which the originating trunk switch 11 belongs, and the line is set up. After the image signal e is accumulated in the side accumulation/conversion processing device 13, a line release request signal f is sent to the originating trunk line exchange @11 to release the line.

Thereafter, from the originating storage conversion processing device 13 to the terminating subscriber B
, ~Bn were sent to the destination storage conversion processing device 14 to which the image signals ε belong.

The storage and conversion processing device 14 is connected to the line or incoming subscriber B1.
~Waiting for availability of Ba, sequentially send line setup request signals h1~h to the destination trunk switch 12 to which the terminating subscribers B+~B7 belong.
, and after setting up a line between the terminating subscribers B1 to B, the terminating trunk switch 12, and the terminating storage and conversion processing device 14, image signals 1I-1,
, was being sent.

For this reason, as the number of broadcast destinations increases, the transmission and reception of signals between stations for the above-mentioned verification of called subscribers increases, the usage rate of inter-office signal lines increases, and this leads to traffic congestion within the network. was. During this period, the hold time on communication lines also increased, resulting in a decline in service due to invalid hold times for callers. Furthermore, the usage rate of the buffers for transmitting and receiving inter-office signals for verifying incoming subscribers during broadcast control increases, and as the number of broadcast destinations increases, the holding time of the buffers described above also increases, leading to congestion within the exchange. There were drawbacks.

[Problem that the invention seeks to solve]

The present invention smoothes the transmission/reception usage rate of inter-office signals and the usage rate of internal exchange buffers during broadcast control, and reduces the line invalid hold time and connection delay time for calling subscribers. The purpose is to provide a broadcast communication control system that allows

[Means for solving problems]

The present invention provides two trunk exchanges which converge a plurality of terminals and have a facsimile communication function, and which are respectively connected to these two trunk exchanges and temporarily store facsimile communications from one of the plurality of terminals. A broadcast communication control system for an intra-network storage type facsimile communication system comprising two storage and conversion processing devices that transmit data to the plurality of destination terminals, and a transmission line that connects these two storage and conversion processing devices. In each of the two trunk exchanges, there is a trunk output control means for controlling transmission and reception with the plurality of terminals, and a storage and conversion processing device of the own station and an inter-office signal exchanger with the trunk exchange of another station. A broadcast request signal and broadcast destination information from one of the plurality of terminals are inputted through an inter-office signal input/output control means for controlling input/output and the trunk input/output control means, and the transmitting terminal is connected to the sending terminal. A line setting request signal for setting up a line with the originating storage and conversion processing device is outputted to the originating storage and conversion processing device via the inter-office input/output control means, call processing control means for inputting a broadcast release request signal from the call processing control means; storage buffer means for inputting and accumulating broadcast destination information from the call processing control means; time starting means which outputs a starting signal at fixed time intervals from the wi control signal of the wi controller; and time starting means which is started by the starting signal and reads out the broadcast destination information signal from the storage buffer means, and transmits the incoming subscription read request signal to the inter-office signal. The signal is outputted to the terminating trunk exchange via the input/output control device, and the incoming subscriber response signal is inputted from the terminating trunk exchange through the inter-office signal input/output control device to verify the terminating subscriber one by one. , broadcast control means for outputting a release signal to the time activation device after the completion of collation of all incoming terminal information, and transmitting a broadcast destination information signal to the originating storage conversion processing device via the inter-office signal input/output control means; It is characterized by having the following.

[For production]

In the case of broadcast communication control in which messages with the same content are sent to multiple called subscribers, the present invention provides that when the originating trunk switch receives the same @ communication request from the originating subscriber, the originating side After setting the line to the storage and conversion processing device and transferring and storing the image signal in advance, the line between the originating subscriber and the originating trunk switch is released, and the broadcast control device is controlled at a constant level by the time activation means. The originating side storage and conversion processing device starts up every hour, collates the subscriber information of multiple terminating subscribers received from the terminating subscribers one by one, verifies the normality of the terminating subscribers, and completes the verification of all the terminating subscribers. By transmitting broadcast destination information using inter-office signals, it is possible to smooth out the transmission/reception usage rate of inter-office signals and the usage rate of buffers in the exchange during broadcast communication control, and to provide line information to calling subscribers. The invalid hold time and connection delay time can be reduced.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings. 1st
The figure is a block configuration diagram of a broadcast communication control device in an originating trunk switch according to an embodiment of the present invention. In FIG. 1, a broadcast request signal a and broadcast destination information are input from a calling subscriber A (not shown) to a trunk input/output control bag W1. The output of trunk input/output control device 1 is connected to call processing control device 3 via control line 2 . Broadcast destination information from the call processing control device 3 is connected to a storage/muffer 5 via a data bus 4. Further, a line setting request signal d is connected from the call processing control device 3 via the control line 2 and the interoffice signal input/output control device 6 to the originating storage conversion processing device 13 (not shown).

A line release request signal f is also connected to the interoffice signal input/output control device 6 from the originating storage conversion processing device 13 (not shown). Output signals from the interoffice signal input/output control device 6 are connected to the call processing control device 3 via the control line 2. A control signal is connected from the call processing control device 3 to the time starting device 8 via a control line 7 . Starting signals at fixed time intervals are connected from the time starting device 8 to the broadcast control device 10. Broadcast destination information is connected from the storage buffer 5 to the broadcast control device 1o via the data bus 4, and the broadcast control device 10 is connected to the destination side storage (not shown) via the control line 2 and the inter-office signal input/output control device 6. It is connected to the conversion processing device 12, and receives and receives called subscriber read request signals b1-b7 and called subscriber information response signals c1-c7. After the verification is completed, the broadcast destination information signal j is connected from the broadcast control device 1F10 via the interoffice signal input/output control device 6 to the originating side storage conversion processing device 13 (not shown).

Further, a release signal is output to the time starting device 8 via the control line 9.

The operation of the broadcast communication control system having such a configuration will be explained. FIG. 3 is a sequence diagram of each signal of the broadcast communication control device of the present invention. In FIG. 3, when the originating trunk switch 11 receives the broadcast request signal a from the originating subscriber A1, the broadcast destination information from the originating subscriber A1 is temporarily stored in the storage buffer 5 shown in FIG. It stores it and sends a line setting request signal d to the originating storage and conversion processing device 13 to which the originating trunk switch 11 belongs to set up a line between the originating subscriber A1 and the originating storage and conversion processing device 13. After that, both signals e are stored in the storage conversion processing device 13 in advance.

Thereafter, after releasing the line in response to the line release request signal f from the originating storage conversion processing device 13, the originating trunk switch 11 reads the broadcast destination information from the storage buffer 5 at two regular intervals, and 81 to B1, the terminating subscriber readout request signals b1 to b7 are sent to the terminating trunk switch 12 to which the terminating subscriber B belongs one by one by interoffice signals,
The called subscriber B receives the called subscriber information response signals 01 to c7.

~ Check Bn. After starting the broadcast control device 10 shown in FIG.
Send out. After receiving the broadcast destination information signal j, the originating storage and conversion processing device 13 sends an image signal g to the destination storage and conversion processing device 14 to which the receiving subscribers B1 to B7 belong.

The destination location conversion processing device 14 is connected to the destination line and the destination subscriber B.
Waiting for a free slot, a line setting request signal is sent to each called subscriber B, -h.

, and sets up a line between the called subscribers B1 to Bn and the called storage conversion processing bag ff14, and after the setting is completed, sends a continuous message to the called subscriber B by sending image signals 11 to 17. to deliver.

The operation of the broadcast communication control device shown in FIG. 1 will be explained. When the broadcast request signal a is input from the originating subscriber A1 to the trunk input/output control device 1, and the call processing control device 3 receives the broadcast request from the trunk input/output control device 1, the -B broadcast destination information is sent to the data bus. 4 to the accumulation buffer 5, and then to the above-mentioned originating side accumulation conversion processing device 13.
The line setting request signal d is sent by the calling subscriber A.
Set up a line with. After the image signal e is accumulated in the originating side accumulation/conversion processing device 13, when receiving the line release request signal f from the interoffice signal input/output control device 6, the call processing control device 3 is activated by the time activation device 8 at regular intervals. The broadcast control device 10 is activated. The broadcast control device f10 reads the broadcast destination information from the storage buffer 5 via the data bus 4, and sends received subscriber read request signals b1 to b7 and received subscriber information response signals to the interoffice signal input/output control device 6. C8～
Sends and receives cfi. When the verification is completed for all incoming subscribers B, it sends a broadcast destination information signal j to the interoffice signal input/output control device W6 and instructs the time activation control device 8 to be cancelled.

〔Effect of the invention〕

As explained above, in the present invention, when the originating trunk switch receives a broadcast request from the originating subscriber, the originating side trunk exchange stores the image signal in the originating storage/conversion processing device in advance, and then sends the image signal to the originating subscriber and the originating side. The line between the storage and conversion processing device is released, and the incoming subscribers are checked one after another after a certain period of time by time-of-day activation, and after the incoming call verification is completed for all the incoming subscribers, the same is sent to the originating storage and conversion processing device. By sending broadcast destination information, it smoothes the transmission and reception usage rate of inter-office signals between the originating trunk switch and the destination trunk switch, and reduces the risk of congestion in the inter-office signal line. It also smooths out the sudden increase in the usage rate of the destination information when verifying incoming calls, and reduces the line's invalid hold time and connection delay time (this has an excellent effect. Even if the number of broadcast destinations increases, the current service level can be maintained for subscribers, congestion within the exchange and within the network can be alleviated, and an increase in the variety of services can be expected.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a broadcast communication control device in an originating trunk switch according to an embodiment of the present invention. FIG. 2 is a sequence diagram of each signal of a conventional broadcast communication control device. FIG. 3 is a sequence diagram of each signal of the broadcast communication control device of the present invention. 1... Trunk input/output control device, 2.7.9... Control line, 3... Call processing control device, 4... Data bus,
5... Accumulation buffer, 6... Inter-office signal input/output control device, 8... Time starting device, 10... Broadcast control device,
11... Originating side trunk line exchange, 12... Destination side trunk line exchange, 13... Originating side storage and conversion processing device, 14... Destination side storage and conversion processing device, A... Originating subscriber, B... Incoming subscriber, a... Broadcast request signal, b... Incoming subscriber read request signal, C... Incoming subscriber information response signal, d
...Line setting request signal, e...Picture signal, f...Line release request signal, g...Picture signal, h...Line setting request signal, i...Picture signal, j... -Broadcast destination information signal.

Claims (1)

[Claims] (1) Two trunk switchboards that converge multiple terminals and have a facsimile communication function, and after temporarily storing facsimile communications from one of the multiple terminals that are connected to these two trunk switchboards respectively. In a broadcast communication control system for an intra-network storage type facsimile communication system comprising two storage and conversion processing devices that transmit data to the plurality of destination terminals, and a transmission path that connects these two storage and conversion processing devices. , Each of the above two trunk switches has a trunk input/output control means for controlling transmission and reception with the plurality of terminals, and an inter-office signal input between the storage and conversion processing device of the own station and the trunk switch of another station. An inter-office signal input/output control means for controlling output, and a broadcast request signal and broadcast destination information from one of the plurality of terminals via the trunk input/output control means are input, and the broadcast request signal and the broadcast destination information are input to the transmitting terminal and the transmitting side storage. A line setting request signal for setting up a line with the conversion processing device is outputted to the originating storage conversion processing device via the inter-office input/output control means, and is outputted to the originating storage conversion processing device via the inter-office signal input/output control means. a call processing control means for inputting a broadcast release request signal from the conversion processing device; an accumulation buffer means for inputting and accumulating broadcast destination information from the call processing control means; and a control signal from the call processing control means. time starting means for outputting a starting signal at fixed time intervals; and time starting means which is started by the starting signal and reads out the broadcast destination information signal from the storage buffer means, and transmits the incoming subscriber read request signal to the inter-office signal input/output control device. After that, it is output to the destination trunk switch,
A terminating subscriber response signal is inputted from the terminating trunk switch via the interoffice signal input/output control device, and each terminating subscriber is verified one by one. After the verification of all terminating terminal information is completed, a release signal is sent to the time activation means. and broadcast control means for outputting a broadcast destination information signal to the originating storage conversion processing device via the inter-office signal input/output control means.