JPS6256065A - Digital switch board control system - Google Patents

Abstract

PURPOSE:To attain the efficient operation of a switchboard by placing a digital switchboard under the control of a processing unit of an exchange station without any switchboard to adopt the same connection route as that for a general call after talking. CONSTITUTION:When a switchboard service request call comes to an incoming trunk 11 from an area of an exchange station B, the connection information of a talking path of the incoming call is communicated with a station A processing unit 26 via a digital interface trunk 15, a digital line (c) and a station A side digital interface trunk 25 from a processing unit 16 and a control signal of a digital switchboard 27 is brought under the control of the processing unit 16 from under the control of the processing unit 26. At the end of connection of the talking path, a called subscriber is called by the operation of the operator of the digital switchboard 27. The digital switchboard 27 is disconnected from the call after the operator confirms the talking. The talking path in this state is connected to the called subscriber in the route of an incoming trunk 11, a main switch 14 and an outgoing trunk 12.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a digital switchboard control system (7. In particular, when a call arrives at a switching center that does not have a switchboard), the switchboard service is The present invention relates to a remote switching board provided in a switching center having an Iil control system.

(Prior art) Conventionally, in this type of switchboard control system, in a switchboard that does not have a switchboard (-), there is an interface A that is connected to a switchboard that has a switchboard. , a communication control unit that communicates call information for a request call for switchboard service that arrives at a switching center that does not have a switchboard, and a board trunk that is connected to the outgoing trunk and the interface call trunk via the main switch. a device, a communication control device, and a control device for controlling a switching center without a switchboard; An interface call trunk, an interface "N talk trunk 1", a plurality of exchange boards connected via a main switch, a communication control apparatus connected to a communication control apparatus of an exchange without a switchboard, and 1 communication control apparatus and A control device for controlling an exchange having a switchboard is provided, and in response to a request call for switchboard service arriving at a switchboard not having a switchboard, a call between the caller and the switchboard of the switchboard having a switchboard is provided. Path settings and call information are communicated between the control devices of the exchanges via communication control devices, and the switchboard service is provided under the control of the switching center having the switchboard.

(Problems to be Solved by the Invention) The conventional switchboard control method described above is such that a switchboard service request call that arrives on the incoming trunk of a switchboard that does not have a switchboard is forwarded to a switchboard that does have a switchboard. Connection information and call information for the ζ connection were communicated between the switching center control devices via the communication control device, and a call bus was set up between the switchboard and the caller.

However, in this system, each switching center is equipped with a communication control device and a communication line dedicated to switching center services for communication of connection information and call information for calls requesting switchboard service to switching centers that do not have a switchboard. The present invention has the drawback that hardware is required. (Means for solving the problem) The present invention has the disadvantage that hardware is required. In a digital switching network consisting of a switching center B, the switching center B has a B-side digital interface trunk connected to the switching center A via a digital line, and an incoming trunk and an outgoing trunk to the switching center B side. , a B-side board trunk connected to the B-side digital interface trunk via a main switch, and a processing device for controlling the switching center B; an incoming-side digital interface trunk connected to the incoming-side digital interface trunk; a multi-node digital switchboard connected to the incoming-side digital interface trunk via a main switch to provide switchboard service; and an A-side board trunk.

A digital switching center and a processing device for controlling the switching center A are provided, and communication of control signals and call information for a switchboard service request call arriving at the switching center B via a digital line from the control device of the switching center B is provided. is carried out with exchange A, and the digital exchange under the control of exchange A is brought under the control of exchange B, controlling it as if it were the exchange of exchange B, thereby making the exchange own the digital exchange. This system is designed to provide switchboard services for exchanges that do not operate.

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

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

The switchboard control system shown in this figure is applied to a switchboard B that does not have a switchboard and a switchboard A that has a digital switchboard that provides switchboard services. First, exchange B
The main switch 4, the trunk 11 accommodated in the main switch 14, the outgoing trunk 12 . and a digital interface 7 eighth trunk 15, and a board trunk 13. which has three input/output terminals 13a, 13b, and 13c and is connected to the incoming trunk 11 and outgoing trunk 12 accommodated in the main switch 14 via the main switch 14. and a processing device that controls the digital interface trunk 15.

Exchange A also has a main switch 24, an incoming trunk 21 and an outgoing trunk 22 that accommodate the main switch 24Yc, a digital interface trunk 25 connected to the digital interface trunk 15 of the above-mentioned switching center B, and three input/output ports. Terminals 23a, 23b,
23 (!), a digital switching board 27 housed in the main switch and on which various services are provided by an operator, and a processing device 26 that controls the switching center A'.

When a switchboard service request call arrives at the B-side trunk 11 from within the area of switching center B, the connection information of the call path of the incoming call is sent from the B-side processing device 16 to the BM-side digital interface trunk 15 and the digital line. Communication is carried out between the A-side processing device 26 via C1 and the A-side digital interface trunk 25, and the human trunk 11, the main switch 14, the board trunk 130 person output terminal 13b, the board trunk 13. Its input/output terminal 13C, main switch 14, digital interface trunk 15, digital OAttJc, A
It is connected through the route of the digital interface trunk 25 on the office side, the main switch 24 on the A office side, and the digital exchange board 27. At this time, the control signal of the digital exchange 27 is also transferred from the control of the processing unit 26 of the exchange A to the A-side digital interface trunk 25. digital line c
, is under the control of the processing unit 16 of exchange B via the B-side digital interface trunk 15.

When the connection of the call path is completed, the called subscriber is called by the operator of the digital exchange board 27. The call path at this time is the digital switchboard 27. Main switch on the A station side 24% Digital interface trunk 25, digital circuit lc, B station side digital interface trunk 15% Main switch 14, board trunk 130 input/output terminal 13c1 Board trunk 13
, its input/output terminal 13a, main switch 14. The outgoing trunk 12 route connects to the called party.

The connection information at this time is processed by the B-side processing device 16 which has the digital exchange board 27 under control.

At the time of completion of the call path, board trunk 1 on the B side
3 is a three-way call, and the digital switchboard 27 is disconnected from this call after the operator confirms the call. In this state, the call path is 1 person trunk 11. Main switch 14
．． The outgoing trunk 12 route connects to the called party.

The disconnection information is transmitted by the processing device 16 on the B station side, as described above, and the digital switching board 27 controls the processing device t26 on the A station side through communication between the processing device 16 and the processing device 26 on the A station side. returned to the bottom.

For exchange service calls from within the area of exchange B, a call path to the called party is established through the same trunking as for general calls, without bypassing exchange A.

(Effects of the Invention) As explained above, the present invention provides switching centers having a digital switchboard that provides switchboard services in common in multiple regions, and requests for switchboard services to switching centers that do not have a switchboard. connecting the call via a digital interface trunk to a switching center having the digital switchboard;
By communicating call signals and digital switchboard control signals over the same digital line, and bringing the digital switchboard under the control of the processing unit of the switching center that does not have a switchboard, communication control equipment 1 communication exclusively for switchboard services is achieved. Lines are no longer required, and calls for switchboard service can be accepted using a connection route that is different from a general call only at the point in time, and after the call begins, the connection route is the same as that for a general call. It has the effect of enabling operation.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a switching network according to one embodiment of the present invention. 11.21...Incoming trunk, 12.22...Outgoing trunk, 13.23...Board trunk, 14.24...Main switch, 15.25...Digital interface trunk, 16.26. ...Processing device, 27...Digital switching board, A, B...Switching center. C...Digital line.

Claims (1)

[Claims] In a digital switchboard control system for a switching network consisting of a switching center A having a plurality of digital switchboards providing switchboard services and a plurality of switching centers B having no switchboards, the switching center B is A B-side digital interface trunk connected to A via a digital line, B-side ingress and egress trunks, and a B-side board trunk connected to the B-side digital interface trunk via a main switch. , the exchange B
The switching center A has a processing device that controls the switching center B.
A digital interface trunk on the A station side connected to the digital interface trunk on the A station side, a plurality of digital switchboards connected to the digital interface trunk on the A station side via a main switch to provide switchboard services, and a board trunk on the A station side. and a processing device that controls the digital switching board and switching center A,
Communication of control signals and call information for a switch service request call that arrives at switching center B via the digital line is performed between the control device of the switching center B and the control device of the switching center A; The digital exchange under the control of station A is brought under the control of exchange B, and is controlled as if it were the exchange of exchange B, thereby providing the exchange service of exchange B, which does not have a switch. A digital switchboard control method characterized by: