KR19990048227A - Process for Treating Pietiene Using V5.2 Interface in Electronic Switching System - Google Patents

Abstract

The present invention relates to a PSTN call processing method using a V5.2 interface in an all-electronic switch that enables an independent and efficient service for a PSTN subscriber connected to the V5.2 interface by accepting the V5.2 interface in an all-electronic switch. In the PSTN call processing method using a subscriber matching device, a V5.2 interface, and a V5.2 interface having an all-electronic exchange, the subscriber matching device may determine a corresponding state when a state change of the PSTN subscriber is recognized. Transmitting the PSTN call control message of the PSTN call control message to the electronic switchboard through the V5.2 interface, and when the PSTN call control message is received from the subscriber matching device, determining the validity of the call control message; If the received PSTN call control message is a valid message, it allocates system resources to the PSTN subscriber. Canceling the allocated system resource, transmitting a predetermined processing signal for allocating or releasing system resources to the subscriber matching device through the V5.2 interface, and receiving the processing signal, the subscriber matching device receives an appropriate control signal. It characterized in that it comprises a step of outputting to the corresponding PSTN subscriber.

Description

Process for Treating Pietiene Using V5.2 Interface in Electronic Switching System

The present invention relates to an electronic switchboard, and more particularly, to a V5.2 interface in an electronic switchboard that enables independent and efficient service for a PSTN subscriber connected to the V5.2 interface by accepting the V5.2 interface. It relates to a PSTN call processing method used.

Currently, electronic exchanges are used for local and local / tandom use of the PSTN, and ultimately can be developed into flexible exchanges in various networks such as integrated information and communication networks (ISDN) and intelligent networks. It is developed to be.

However, the service of the PSTN subscriber using the conventional electronic switchboard could only service the subscriber directly connected to the predetermined subscriber interface device in the exchange by a physical line.

In addition, in order to accommodate subscribers remote from the electronic switchgear, a sub-system equipped with both the existing electronic switchgear and software or hardware resources had to be located remotely.

The remote system is expensive because the remote system must have all the hardware or software resources of the existing electronic switch, and the remote system can not process the subscriber information. It was very difficult to manage by being in control of the main system.

Accordingly, the present invention has been made in view of the above-described circumstances, and accommodates a V5.2 interface at an electronic switchboard and interfaces with a subscriber matching device that matches a physically connected PSTN subscriber to a PSTN subscriber connected to the V5.2 interface. The purpose is to provide a PSTN call processing method using the V5.2 interface in an electronic switch that enables independent and efficient service.

1 is a functional block diagram for explaining a PSTN call processing method using the V5.2 interface in the electronic switch according to an embodiment of the present invention.

2 is a detailed flowchart of a PSTN call processing method using a V5.2 interface in an all-electronic exchange according to an embodiment of the present invention.

* Brief description of the main parts of the drawing

10: PSTN (Public Switched Telephony Network) Call Control Unit

11: PSTN call control message processing unit 12: PSTN subscriber information management unit

13: V5.2 interface unit 14: system resource management unit

15: Ministry of System and Resources

20: V5.2 interface unit 21: remote subscriber matching unit

E1: E1 Trunk

The PSTN call processing method using the V5.2 interface in the all-electronic exchange according to the present invention for realizing the above object is a PSTN call using a V5.2 interface having a subscriber matching device, a V5.2 interface, and an all-electronic exchange. In the processing method, when the state matching for the PSTN subscriber is recognized, the subscriber matching device transmits a predetermined PSTN call control message corresponding to the PSTN subscriber to the electronic switchboard through the V5.2 interface. Receiving a PSTN call control message from the matching device, determining the validity of the call control message; if the received PSTN call control message is a valid message, allocates system resources to the corresponding PSTN subscriber or allocates allocated system resources. Canceling a predetermined process signal for allocating or canceling system resources through the V5.2 interface. Sum transmitting to the device and, Subscriber Line device that receives the processed signal is characterized by configured by comprising: the output to the PSTN subscriber the appropriate control signals.

Accordingly, as described above, by independently managing the information on the PSTN subscriber connected to the V5.2 interface by accommodating the V5.2 interface to the electronic switchboard, independent and efficient subscriber management is possible.

Next, an embodiment according to the present invention will be described.

1 is a functional block diagram illustrating a PSTN call processing method using a V5.2 interface in an all-electronic exchange according to an embodiment of the present invention.

In the drawing, reference numeral 10 denotes a PSTN call controller for performing overall call control for a PSTN subscriber interfaced with V5.2, and 11 denotes a V5.2 interface 13 and the PSTN call controller 10, which will be described later. As a PSTN call control message processing unit for providing an appropriate communication path between the PSTN call control message processing unit 11, in particular, the PSTN call control message processing unit 11 determines whether the PSTN determines the suitability of a predetermined call control message input from the V5.2 interface unit 13; It transmits to the call control unit 10, and outputs a message according to the allocation or cancellation of the system resources input from the PSTN call control unit 10 to the V5.2 interface unit (13).

Also, reference numeral 12 denotes a PSTN subscriber information management unit for storing and managing subscriber information for a remote PSTN subscriber interfaced with the V5.2 interface unit 13.

In this case, the PSTN subscriber information management unit 12 determines the validity of the corresponding subscriber information when a predetermined validity determination request message for the subscriber information is received from the PSTN call control message processing unit 11 together with arbitrary subscriber information. The corresponding result message is output to the PSTN call control message processing unit 11.

Further, reference numeral 13 denotes a V5.2 interface unit for interfacing using the V5.2 interface unit 20 and the V5.2 protocol, which will be described later, and 14 denotes various system resources of the electronic switchboard. As the system resource management unit for managing, in particular, the system resource management unit 14 is based on the link request, bearer channel, or communication channel of the V5.2 interface based on a predetermined request signal of the PSTN call control unit 10. Determines the allocation state of the communication channel and outputs a predetermined response signal to the PSTN call controller 10 or restores the allocated system resources based on the predetermined request signal of the PSTN call controller 10. Reference numeral 15 denotes a system resource unit for storing state information on various system resources provided by the electronic switchboard.

Reference numeral 20 denotes a V5.2 interface unit of a remote subscriber unit for interfacing the V5.2 interface unit 13 with a V5.2 protocol, and 21 denotes a remote unit for matching subscribers directly connected to a physical line. As the subscriber matching unit, the remote subscriber matching unit 21 receives a signal corresponding to a predetermined signal (e.g., an off-hook signal) according to a change of subscriber state from a connected PSTN subscriber, and transmits a corresponding signal to the V5.2 interface unit ( 20) or establish or terminate the subscriber's call path based on the subscriber message authorized by the V5.2 interface unit 20.

Next, an embodiment according to the present invention will be described in more detail with reference to the detailed flowchart of FIG. 2.

First, when the remote subscriber registration unit 21 recognizes a state change for the PSTN subscriber by off-hook or on-hook (ST1), the predetermined PSTN corresponding thereto. The call control message is transmitted to the V5.2 interface unit 20 of the remote subscriber unit (ST2). Then, the V5.2 interface unit 20 transmits the PSTN call to the V5.2 interface unit 13 on the switchboard side of the PSTN call control message through the communication channel of the E1 trunk using the V5.2 protocol. The control message is transmitted (ST3).

Subsequently, the V5.2 interface unit 13 on the switchboard side transmits the PSTN call control message received from the remote subscriber unit to the PSTN call control message processing unit 11 through the trunk E1 (ST4).

Then, the PSTN call control message processing unit 11 outputs the message to the PSTN subscriber information management unit 12 in order to determine the validity of the PSTN call control message, which is the PSTN subscriber information management unit 12. The validity of the input call control message is determined based on the subscriber information (ST5).

At this time, if the received call control message is a valid message, the predetermined response signal is outputted to the PSTN call control message processing unit 11, where the PSTN call control message processing unit 11 performs the PSTN call control message. Transmission to the PSTN call control unit 10 (ST6). On the other hand, the PSTN subscriber information management unit 12 outputs a response signal to the PSTN call control message processing unit 11 when the received call control message is not a valid message, wherein the PSTN call control message processing unit 11 Outputs the result signal to the V5.2 interface unit 13. Then, the V5.2 interface unit 13 accordingly outputs a predetermined call interruption message to the remote subscriber unit.

Subsequently, the PSTN call controller 10 determines the received call control message and outputs a predetermined message to the system resource manager 14 to request resource allocation or release based on the received call control message (ST7). Accordingly, the system resource management unit 14 searches the system resource unit 15 to allocate available system resources to the subscriber or to release the allocated system resources (ST8).

Subsequently, the system resource manager 14 allocates or releases system resources and transmits a predetermined response signal to the PSTN call controller 10 (ST9). Then, the PSTN call control unit 10 transmits the received response signal to the PSTN call control message processing unit 11 (ST10). At this time, when the received call control message is a request for an additional service, the PSTN call controller 10 outputs a predetermined resource addition request signal to the system resource manager 14 to receive additional system resources.

Subsequently, the PSTN call control message processing unit 11 transmits a response signal for allocating or releasing system resources received from the PSTN call control unit 10 to the V5.2 interface unit 13 (ST11). 2 interface unit 13 is to transmit to the remote subscriber side via the E1 trunk (ST12).

Then, when the V5.2 interface unit 20 on the remote subscriber side receives the response signal through the E1 trunk, the V5.2 interface unit 20 outputs the response signal to the remote subscriber matching unit 21 and the remote subscriber matching unit 21. The controller performs the control operation on the corresponding PSTN subscriber based on the input response signal (ST13).

As described above, the call control procedure may be started from the call requesting PSTN subscriber but may be started from the electronic switchboard to the PSTN subscriber. At this time, the call control flow is, when the PSTN call controller 10 receives a predetermined call request signal from another PSTN call controller in the electronic switchboard, the PSTN call controller 10 is based on the received call control message. Processes such as outputting a predetermined message requesting allocation or release of resources to the system resource management unit 14 proceed in the same manner.

That is, according to the above, by independently managing the information on the PSTN subscriber connected to the V5.5 interface by accommodating the V5.2 interface to the electronic switchboard, independent and efficient subscriber management is possible.

In addition, this invention is not limited to the said Example, It can variously deform and implement within the range which does not deviate from the technical summary.

As described above, according to the present invention, the PSTN using the V5.2 interface in the all-electronic switch that enables the independent and efficient service for the PSTN subscriber connected to the V5.2 interface by accepting the V5.2 interface in the all-electronic switch. The call processing method can be realized.

Claims (1)

A PSTN call processing method using a V5.2 interface having a subscriber matching device, a V5.2 interface, and an all-electronic exchange; When the subscriber matching device recognizes a change in the state of the PSTN subscriber, transmitting the predetermined PSTN call control message corresponding to the PSTN subscriber to the electronic switch through the V5.2 interface, When the electronic exchange receives the PSTN call control message from the subscriber matching device, determining the validity of the call control message; If the received PSTN call control message is a valid message, allocating system resources to the corresponding PSTN subscriber or canceling the allocated system resources; Transmitting a predetermined processing signal for allocating or releasing system resources to the subscriber matching device through the V5.2 interface; And receiving the processing signal by outputting an appropriate control signal to the corresponding PSTN subscriber.