JPS6070851A - System for controlling idle or occupant subscriber - Google Patents

Abstract

PURPOSE:To prevent ineffective retention of a talking line and to decrease a connection delay time by transmitting idle/occupant information of an incoming subscriber from an incoming exchange to an outgoing exchange. CONSTITUTION:An identification number of an electronic exchange 3 is stored in an outgoing exchange identification symbol storage buffer 44 in an electronic exchange 4 when a subscriber 2 is occupied, and the exchange 4 transmits the occupancy information of the subscriber 2 to the electronic exchange 3 via a processor 42 and a signal line 6. The electronic exchange 3 stores the occupancy information of the subscriber 2 to an idle/occupant information storage buffer 33 via a processor 32, then a call to the subscriber 2 is restricted by the idle/occupant information storage buffer 33 in the electronic exchange 3, and the notice of the occupied information of the subscriber 2 to an outgoing subscriber 1 is performed by an indication of the processor 32 from a talking device 31.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a subscriber blockage control system, and more particularly to a subscriber blockage control system in which an originating exchange performs blockage control of a terminating subscriber in a switching network.

Conventionally, a system has been adopted in which the blockage control for one terminating subscriber is carried out independently by the exchange accommodating the subscriber. However, in this system, if one originating exchange is different from the terminating exchange, the blocking control of the terminating subscriber cannot be performed until after the connection operation between the originating and terminating exchanges has been completed. Therefore, when calling again due to subscriber blockage, it is necessary to proceed with the same connection operation, so the call line is held invalid due to subscriber blockage control, and the subscriber base 9 information is sent to the originating subscriber. There were problems such as notification delay 1 and an increased risk of inducing congestion at the terminating exchange.

The object of the present invention is to solve the above-mentioned problems by transmitting the blockage information of the called subscriber from one terminating exchange to the originating exchange, and to provide subscriber blockage control that enables one originating exchange to manage the blockage of the called subscriber. There is a method that can be provided.

According to the present invention, in a switching network, one terminating exchange has nine status management data storage means for storing status management data corresponding to each subscriber; 1 identification number storage means for temporarily accumulating the identification number of the terminating exchange; air block information sending means for transmitting air block information of the subscriber to the originating exchange, and the originating exchange is provided with air block information storage means for temporarily accumulating the air block information of the subscriber, and the originating exchange A subscriber blockage control system is obtained, which is characterized in that it performs blockage control on incoming calls to a subscriber.

Next, the present invention will be explained with reference to the drawings.

The figure is a block diagram showing an embodiment of a switching network to which the subscriber occupancy control system of the present invention is applied. In the figure, the switching network employs a common line signaling system as a signaling system between originating and terminating electronic exchanges. That is, the electronic exchange 3 accommodating the subscriber 1 is composed of a communication path device 31, a processor 32, and a blockage information storage buffer 33 for the subscriber 2 accommodating other stations, and the electronic exchange 4 accommodating the subscriber 2 is configured to Device 41.
Processor 42. It is composed of an idle state management data memory 43 of the subscriber 2 and an originating exchange identification number storage buffer 44, and the electronic exchange 3 and the electronic exchange 40 are connected by a speech line 6 and a signal line 6 using a common line signaling system. A call from subscriber Z to subscriber Z is connected from electronic exchange 3 to electronic exchange 4 via speech line 5 and signal line 6, as is generally known, but at this time an identification number of electronic exchange 3 is assigned. Signals are transmitted and received via the signal line 6 in this format. The electronic exchange number determines whether the subscriber 2 is busy or not in the idle state management data memory 4'3. In other words, when the subscriber 2 is busy, the electronic exchange 4 stores the identification number of the electronic exchange 3 in the originating exchange identification number storage buffer 44. The processor 42. stores and stores information about the subscriber 2 in the electronic exchange 3. Send via wire. The electronic exchange 3 is the subscriber 2
The blockage information of 1 is stored in the blockage information storage buffer 33 via the processor 32, and thereafter calls to subscriber 2 are regulated by the blockage information storage buffer 33 in the electronic exchange 3.
The communication channel device 31 notifies the originating subscriber 1 of the blockage information of the subscriber 2 based on instructions from the processor 32. When subscriber 2 becomes free. In the electronic exchange 4, based on the information in the originating exchange identification number storage buffer 44, the processor 42 sends the availability information of the subscriber 2 to the electronic exchange 3 via the signal line 6, and the electronic converter 3 transmits the processor 'y' 3
2 to clear the occupancy information storage buffer 33.

Although this embodiment exemplifies a switching network that employs a common channel signaling system, this does not preclude application of the subscriber blockage control system of the present invention to other switching networks.

As explained above, the subscriber blockage control system of the present invention includes a subscriber blockage state management data storage means, an originating exchange identification number storage means, and a blockage information sending means in one terminating exchange; The device is equipped with a block information storage means, and one originating exchange performs block control on incoming calls to the subscriber, thereby preventing call lines from being put on hold. This has the effect of reducing connection delay time and preventing congestion at the terminating exchange.

[Brief explanation of the drawing]

The figure is a block diagram showing an embodiment of a switching network to which the subscriber occupancy control system of the present invention is applied. In the figure, ■, 2... Subscribers. 3.4...
...Electronic exchange, 31.41...Call path equipment, 32.42...Processor. 33...
・Air block information storage buffer. 43... Vacant state arrangement data memory, 44...
...Originating exchange identification number storage buffer, 5...
・Call line. 6...Signal line. Agent: Susumu Uchihara, patent attorney

Claims (1)

[Claims] In the switching network, one terminating switch has a blockage state management data storage means for storing blockage state management data for each subscriber, an identification number storage means for temporarily storing the identification number of the receiving switch, and a blockage state management data storage means for storing the blockage state management data for each subscriber; comprising a blockage information sending means for sending to the originating exchange, and the originating exchange comprising a blockage information storage means for temporarily storing the blockage information of the subscriber;
A subscriber blockage control system, characterized in that the originating exchange performs blockage control of incoming calls to the subscriber.