KR0154481B1 - Method for controlling call process in the full electronic switching system - Google Patents

Abstract

The call processing process control method is to reduce the processor's memory usage by reducing the throughput of a child processor in an electronic switch using an operating system having a process concept. After the incoming call notification is made to the call processing child process, the calling / calling side child processing process is destroyed, and the call processing control is transferred to the calling / calling side main processing main process until all calls are completed. It is a process performed by a process.

Description

Call Processing Process Control Method in Electronic Switching System

1 is a functional block diagram illustrating a conventional call processing process in an all-electronic exchanger.

2 is a flowchart of the operation of the calling and called party call processing main processes shown in FIG.

3 is a process of the call processing child processor of the calling party.

4 is a process of the call processing child processor of the called party.

5 is a functional block diagram illustrating a call processing process according to the present invention.

6 is an operational flow diagram of an originating / calling side call processing main processor according to the present invention.

7 is a flowchart illustrating an operation of an outgoing call processing child processor according to the present invention.

8 is a flowchart illustrating an operation of a called party call processing child processor according to the present invention.

* Explanation of symbols for main parts of the drawings

500: calling party subscriber matching processor 501: calling party call processing main processor

502: call processing child processor 503: number input processor

504: called party call processing main processor 505: called party call processing child processor

506: called party matching processor 507: calling party call processor

508: called party's call processing processor

The present invention relates to a method for controlling a call processor in an all-electronic exchange, and more particularly, a process resource and a process managed by the operating system in an all-electronic exchange using an operating system having a process concept. The present invention relates to a call processing process control method that can reduce use.

Existing call processing process is to create a call processing child processor from the time of call generation to maintain the call processing child process until the call is terminated through the call state. Therefore, if the call time of the subscriber becomes long, the call processing child process is maintained without changing the internal state.

1 is a block diagram showing a process of performing a conventional call processing. The originating call processing processor 107 composed of a calling party subscriber matching processor 100, a call processing main process 101, and a call processing child process 102 is shown in FIG. A second party consisting of the called party call processor 108, the called party matching processor 106, which is composed of the number translation process 103, the call processing main process 104, and the call processing child process 105. Call processing is performed through the process as shown in FIGS. 3 and 4.

Referring to the call processing process through the call processing structure configured as shown in Figure 1 in more detail as follows.

That is, when the calling party attempts to make a call, the subscriber matching processor 100 detects the change and notifies the calling call processor 107 of the calling processor 107 in the processor ASP.

Accordingly, the call processing main processor 101 maintains the message waiting state in step 201 of FIG. 2, and if the hook-off state is notified from the calling party subscriber matching processor 100, the call processing main processor 101 proceeds to step 203 through step 202. To create an outgoing call processing child process 102. From this point, the calling party's call processing child processor 102 directly communicates with the subscriber control processor 100 and the call processing proceeds.

The generated called party call processing child process 102 performs call processing through the same process as in FIG. That is, after being generated, the process proceeds to step 301 to maintain the called party receiving state. In this maintenance state, when the subscriber presses the called party's number, the called party number pressed from the subscriber matching processor 100 to the call processing child process 102 is notified. When the called number is received, the call processing child process 102 proceeds from step 302 to step 303 to request the number translation for the called party number notified by the number translation process 103, and proceeds to step 304 to receive the call. Keep occupied standby.

On the other hand, when the number translation is finished, the number translation process 103 makes a request to occupy the incoming subscriber to the call processing main process 104 in the called party's call processing processor 108. Accordingly, the called party's call processing main process 104 proceeds to step 205 through step 204 in the message waiting state of step 210 of FIG. 2 to generate a call processing child processor 105 for incoming call processing. Proceed to standby.

The generated called party call processing child process 105 performs call processing through the process as shown in FIG. That is, since the call processing child process 105 is generated by the occupancy request, the generated call processing child process 105 proceeds to step 401 to send the incoming call notification in response to the occupancy request. After step 102, the process proceeds to step 402 to maintain a standby state for the switch connection.

In step 305, the originating call processing child process 102 having received the incoming call notification proceeds to step 306 to connect a switch for a call, and proceeds to step 307 to switch to the called party's call processing child process 105. After the notification is sent, the flow proceeds to step 308 and waits for a response from the called party.

The called party's call processing child process 105, which has received the switch connection notification from the calling party's call processing child process 102 in step 403, proceeds to step 404 and performs a ring tone connection processing to be sent to the calling party. After the process proceeds to step, the call signal connection request to the called party is sent to the called party subscriber matching process 106 so that the subscriber hears the call signal, and the flow proceeds to step 406 to maintain the call answering standby state. When the called subscriber who answers the call signal in the incoming call waiting state responds, the subscriber matching process 106 detects and sends a hook-off signal to the called party's call processing child process 105.

The receiving party call processing child process 105 having received the hookoff signal proceeds from step 407 to step 408, cutting off the ring tone transmitted to the calling party and cutting off the call signal transmitted to the called party, and then proceeding to step 409. The incoming response notification is sent to the call processing child process 102, and the process proceeds to step 410 to transfer to the busy state.

When the calling party processing child process 102 receives the response notification from the called party's call processing child process 104 in the waiting for the incoming call response in step 308, the process proceeds to step 310 in step 309, and also transitions to the busy state. do.

From this point, if the calling / incoming subscriber maintains the call state, the calling / incoming call processing child processes 102 and 105 which control it also remain in the busy state. When the calling party completes the call and hooks up, the subscriber matching processor 100 notifies the calling child process 102 of the hook-on notification. Accordingly, the calling party call process child process 102 proceeds from step 310 to step 312 through step 312 to recover the calling subscriber, and then proceeds to step 313 to make the called party call processing child process 105. Is notified and is destroyed (ie terminates call processing).

When the recovery notification is received from the calling party's call processing child process 102, the called party's call processing child process 105 proceeds from step 410 to step 412 to the recovery processing standby state of the called party. After setting, the process proceeds to step 413 to maintain the recovery status of the called party. When the hook-on signal is received from the called party's subscriber matching processor 106, the called party's call processing child process 105 performs a recovery process and ends the call processing at the time of receiving the hook-on signal.

As such, the call processing main process used to establish a call has a fixed amount of memory available to the processor, but the call processing child process has no memory capacity defined, and thus continues to occupy the memory provided by the processor until the call ends. If the call is long, the memory area occupied by the call processing child process becomes larger, thereby limiting the number of processes available to the processor. This problem is exacerbated when the number of available subscribers is increased, which necessitates an increase in the memory of the processor and a change in the operating system.

Accordingly, an object of the present invention is to provide a method for controlling a call processing process which can reduce the memory usage of a processor by reducing the throughput of a child processor in an electronic switch using an operating system having a process concept to solve the above problems. have.

Call processing process control method according to the present invention, in the call processing process control method of the electronic switchboard for generating a call processing child process by the call processing main process, if the call processing is requested from the subscriber, the originating call, If the call is requested by the subscriber's hook-off, creating an originating call processing child process by the originating call processing main process; When the called party receives the called party number, requesting a number translation in the call processing child process; If the number translation is made, the call occupancy is required to the called party call processing main process; If called occupancy is required, the called party's call processing main process comprises: creating a called party's call processing child process; When the incoming call is notified to the calling party's call processing child process by the called party's call processing child process, connecting a switch for a call by the calling party's call processing child process; When the switch connection notification is transmitted from the calling party processing child process to the called party processing child process, connecting the calling party ring tone and the called party calling signal by the called party calling child process; When the called party hooks off by the calling signal, the called party's call processing child process cuts off the ring tone and the calling signal and sends an incoming call response notification to the calling party's call processing child process; After the incoming call response notification, the called party's call processing child process transfers control to the called party's call processing main process and extinguishes; The called party's call processing main process, which has received the control right, performs the busy processing; When the incoming reply notification is received, the calling party child process transitions to a busy state; After the busy state transition, the calling party processing child process passes control to the calling party processing main process and terminates; Controlling the originating call processing main process to perform a busy process; When the hook-on signal is received by the calling party, the calling party main process performs a recovery process and then sends a recovery notification to the called party main process; When the recovery notification is received, the called party's call processing main process to display a recovery indication to the called party; When the hook-on signal is transmitted from the called party by the recovery indication, the called party's call processing main process includes terminating the call processing after the recovery processing.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

5 is a block diagram of a call processing structure for performing a method for controlling a call processing process according to the present invention. In the same manner as the block diagram of the call processing structure shown in FIG. Originating call processing processor 507, number translation process 503, called party matching processor 506, called party processing main process, which is composed of processing main process 501, call processing child process 502. 504 and a call processing child process 505. A call side child processing child process 508 is configured.

6 is a flowchart illustrating a process of a call processing main processor of a calling party and a called party in a call processing processor control method according to the present invention.

7 is a flowchart of the processing of the calling party process child process, and FIG. 8 is a flowchart of the processing of the called party process child process.

Next, a method of controlling the call processing processor according to the present invention will be described in detail with reference to FIGS. 5, 6, 7, and 8.

First, when the calling party attempts to make a call, the subscriber matching processor 500 detects the change and notifies the calling party of the calling processor 507 in the host processor ASP.

Accordingly, the call processing main process 101 maintains the message waiting state in step 601 of FIG. 6, and if the hook-off state is notified from the calling party matching processor 500, the call processing main process 101 proceeds to step 605 through step 604. After generating the calling party process child process 502, the process proceeds to step 613 to maintain the message waiting state. From this point, the call processing child process 502 directly communicates with the subscriber control processor 100 to proceed with the call processing.

The generated call processing child processor 502 processes the call through the process shown in FIG. In other words, after being generated, the process proceeds to step 701 to maintain the called party reception state. In this maintenance state, when the subscriber presses the called party's number, the called party number pressed from the subscriber matching processor 500 to the call processing child process 502 is notified. When the called number is received, the call processing child process 502 proceeds from step 702 to step 703 to request a number translation for the called party number notified by the number translation process 503, and proceeds to step 704 to receive the call. Maintain the occupancy waiting.

On the other hand, when the number translation is completed, the number translation process 503 requests the occupant subscriber to call processing main process 504 in the called party's call processing process 508. Accordingly, the called party processing main process 504 proceeds to step 603 through step 602 in the message waiting state of step 601 of FIG. 6 to generate a call processing child process 505 for incoming processing. In step 613, the process proceeds to the message waiting state.

The generated called party call processing child process 505 performs call processing through the process as shown in FIG. That is, since the call processing child process 505 is generated by the occupancy request, the generated call processing child process 505 proceeds to step 801 to send the incoming call notification in response to the occupancy request. After sending to 502, the process proceeds to step 802 to maintain a standby state for a switch connection.

In step 705, the originating call processing child process 502 that has received the incoming call notification proceeds to step 706 to connect a switch for a call, and proceeds to step 707 to switch to the called party call processing child process 505. After the notification is sent, the flow proceeds to step 708 to wait for a response from the called party.

The called party's call processing child process 505 which has received the switch connection notification from the calling party's call processing child process 505 in step 803 proceeds to step 804 and performs a ring tone connection processing to be sent to the calling party. The process proceeds to the step and sends a call signal connection request to the called party subscriber matching process 106 to the subscriber to listen to the call signal, and proceeds to step 806 to maintain the call response waiting state. When the called subscriber who listens to the call signal in the incoming call waiting state responds, the subscriber matching process 506 detects and sends a hook-off signal to the called party's call processing child process 505. The receiving party call processing child process 505 receiving the hookoff signal proceeds from step 807 to step 808 and cuts the ring tone transmitted to the calling party and cuts off the call signal transmitted to the called party, and then proceeds to step 809. The call response child notification is sent to the call processing child process 102, and the process proceeds to step 810 and transfers control to the call processing main process 504, and terminates the work while destroying itself.

On the other hand, the originating call processing child process 502 receiving the incoming call response notification in step 709 proceeds to step 710 and transitions to the busy state, and then proceeds to step 711 to control the calling party to control the calling party. It passes to 501, and the work ends while destroying itself.

The originating / receiving side main process 501, 504, which has been given control of each originating / receiving subscriber, maintains the busy state of the subscriber. At this time, if the hook-on signal is notified from the calling party subscriber matching processor 500, the calling party processing main process 501 proceeds from step 601 to step 606 to step 607 to recover the calling party. Then, the process proceeds to step 608 and sends a recovery notification to the called party's call processing main process 504, and then proceeds to step 603 to maintain a message waiting state.

In step 611, the receiving main process 504, which has received the recovery notification, proceeds to step 612 to display a waiting state for the called party recovery process, and then proceeds to step 613 to operate as described above.

When the receiving party hooks on by the recovery processing wait state indication, the receiving subscriber matching processor 506 detects this and transmits the hook-on signal to the receiving main main process 504. When the hook-on signal is received in step 609, the called-side main process 504 proceeds to step 610 to perform a recovery process of the called party and ends the actual call processing. However, the originating / receiving party call processing main process 501 or 504 proceeds to step 613 to maintain a message waiting state.

As described above, in the call processing process control method according to the present invention, when the incoming call response process is performed during call processing, the generated call processing child process is destroyed and the control process is performed by the call processing main process. It is effective to efficiently use the memory usage of the system.

Claims (1)

In the call processing process control method of the electronic switchboard which generates a call processing child process (502, 505) by the call processing main process (501, 504) to process a call when a subscriber requests call processing. If the call is requested by a hook-off, generating, by the originating call processing main process (501), the originating call processing child process (502); Requesting a number translation in a call processing child process (502) when a called number is received by the calling party; When the number translation is made, a call occupancy request is required to the call processing main process 504; If called occupancy is required, the called party's call processing main process (504) generates a called party's call processing child process (505); When the incoming call is notified to the calling party's child processing process 502 by the called party's calling child process 505, a switch for a call is connected by the calling party's child processing child process 502; ; When a switch connection notification is sent from the calling party processing child process 502 to the called party processing child process 505, the calling party calling signal and the calling party calling signal are connected by the called party calling child process 505. Becoming; When the called party hooks off by the call signal, the called party's call processing child process cuts the call tone and the call signal and sends an incoming call response notification to the calling party's call processing child process 502; After the incoming call response notification, the called party's call processing child process (505) passes control to the called party's call processing main process (504) and extinguishes; The called party's call processing main process (504) receiving the control right performs busy processing; When the incoming reply notification is received, the calling party process child process 502 transitions to a busy state; After the transition to the busy state, the originating call processing child process 502 passes control to the originating call processing main process 501 and extinguishes it; The calling party's main child process (501) performs a busy process; When the hook-on signal is received by the calling party, the calling party processing main process 501 performs a recovery process and then sends a recovery notification to the called party calling process main process 504; When the recovery notification is received, the called party's call processing main process (504) displaying a recovery indication to the called party; When the hook-on signal is transmitted from the called subscriber by the recovery indication, the called party main processing 504 includes the step of terminating the call processing after the recovery processing. Way.