KR100260755B1 - Method for searching subsystem in exchanger - Google Patents

Abstract

PURPOSE: A method for searching an optimum subsystem for an announcement in a switching system is provided to continuously provide a normal announcement service to subscriber and analyze a cause of failure of a call processing by directly making an announcement in an operator-designated subsystem or searching a normally serviceable subsystem by a state management and transmitting an announcement to subscribers. CONSTITUTION: When an announcement connection request is received(16), it is checked whether its own subsystem is available to provide an announcement service(17). If available, the announcement service is started and terminated(18). If not available, it is checked whether its own subsystem is a host or an RASM to search a sub-system available to normally provide the announcement service(19). In case of the host, it is checked whether there exists a system designated by an operator and a flag is checked determining whether an operator-designated subsystem is to provide a service or a normal subsystem is searched by a state management for service(20). In case that the operator-designated subsystem provides a service, the first subsystem as designed is searched and checked whether a normal operation is available(21). If the subsystem is normal, the announcement is connected to the first subsystem as designated. If the subsystem is not normal, it is checked whether a different next subsystem has been designated(23). If a different next subsystem has been designated, it is checked whether the next subsystem is normal(24). It is determined whether a normal service has been provided by the designated subsystem(25). If the normal service has been provided, a speech path of the subsystem is connected to provide a service to a subscriber(26). If it is reported that a normal service has not been provided, it is checked whether an announcement connection request to the subsystem is the first request to a different subsystem(27). In case of host(19), the state of the host is checked(28). The next subsystem of its own subsystem is obtained(30). It is checked whether the next subsystem is normal(31). If the next subsystem is not normal, a different next subsystem which is able to perform a normal service is searched(32). It is checked whether the searched next subsystem is identical to its own subsystem(33).

Description

Optimal Subsystem Search Method for Announcement Broadcasting in Switching System

The present invention relates to an exchange system apparatus, and particularly, to provide a subscriber with an announcement broadcast message by searching for a call that can be handled by another announcement broadcasting apparatus capable of normal service in case of an abnormal announcement broadcasting apparatus that notifies a caller of a failure state occurring during call processing. It relates to a device to provide.

1 is a block diagram of a conventional exchange system applicable to the present invention to be described later. Referring to the drawings, the exchange system is largely composed of ANS-W1, SNS 2, OMS 3 and ANS-T 4 therein is a processor that provides the main processor board and the device therein. That is, ANP 5 in ANS-W1 and ANS-T 4, CIP 6 in SNS 2, OMP 10 in SNP 7, AIP, LRP 9, and OMS 3 are main processor boards. ANDPO 11 and ANDP3 12 in ANS-W1 and ANS-T 4, SNDPO 13 and SNDP1 14 in SNS 2, and OMDP 15 in OMS 3 are processors that control the device. Among the processors, ANP 5 is a place for processing a voice service generated in a switching system, and performs a function of providing an announcement broadcast message to a subscriber.

However, in the case where there is a centralized system in which only one broadcast apparatus for delivering the announcement broadcast is installed in the system, if a sub-system cannot deliver the announcement broadcast service, the subscriber cannot be provided with the normal service. That is, as shown in FIG. 1, when a processor for processing a voice service is installed only in ANP 5 within a specific subsystem area, for example, ANS-W1 and ANS-T 4, a voice service such as various announcements can be provided. If an error occurs during call processing, not only can not provide continuous voice service to many subscribers, but also the cause of the error is not known.

Accordingly, an object of the present invention is to provide a method for searching a subsystem capable of providing a voice service normally even when an error occurs during call processing.

Another object of the present invention is to provide a method for determining the cause of an error in a call processing process.

According to an aspect of the present invention, there is provided a subsystem search method for providing an optimal announcement service among subsystems in a switching system. Checking; Determining whether there is a subsystem previously designated by an operator in the case of a service unavailable in the subsystem of the own country; Searching for another subsystem capable of performing normal service among adjacent subsystems if the predetermined subsystem exists, and causing the designated subsystem to serve; And connecting the call path to provide service to the subscriber via the discovered subsystem.

In addition, the present invention for achieving the above object, in a method for searching for a sub-system capable of providing a service by an operator in the switching system: detecting whether the announcement service is available in the sub-system when the announcement request connection; Steps; Detecting whether a subsystem designated by an operator exists when the announcement service is not available in its own subsystem as a result of the detection; And if there is a subsystem designated by the operator, connecting a call path to provide a service to a subscriber via the designated subsystem.

In addition, the present invention for achieving the above object, a method for searching for a service capable subsystem by state management in a switching system comprising the steps of: detecting whether the announcement service is available in its own subsystem; Detecting whether a subsystem designated by an operator exists when the announcement service is not available in its own subsystem as a result of the detection; Searching for a next subsystem capable of performing normal service among adjacent subsystems when there is no subsystem designated by the operator; And connecting a call path to provide a service to a subscriber through the next sub system.

1 is a block diagram of an exchange system applied to the present invention.

2 is a flowchart illustrating a process of servicing an announcement broadcast in a subsystem designated by an operator as a first embodiment of the present invention.

FIG. 3 is a flowchart illustrating a process of serving an announcement service by finding a subsystem that can be normally serviced by state management as a second embodiment of the present invention.

4 is a flowchart illustrating a process of serving an announcement broadcast in a subsystem designated by the operator as a third embodiment of the present invention, and a process of serving the announcement broadcast by searching for a subsystem that can be normally serviced by state management.

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

1 is a configuration diagram of an exchange system applied to the present invention, which is a conventional block configuration in the art as described above, and thus, further description thereof is omitted.

2 is a flowchart illustrating a process of serving an announcement broadcast in a subsystem designated by an operator as a first embodiment of the present invention. If an error occurs during the call processing and it is necessary to provide the announcement service to the subscriber, when the announcement connection request is received in step 16, the step 17 tests whether the announcement service can be provided by the own subsystem. do. If it is determined that the information broadcast service can be provided by the sub-system, it starts and ends the announcement broadcast service in step 18. Otherwise, in step 19, finds a subsystem that can provide the announcement service normally. Test whether your subsystem is a host or a home country. In the case of a mother country, a flag (FLAG) for determining whether or not a subsystem designated by an operator exists in step 20 and whether to serve in a subsystem designated by an operator or to find and service a normal subsystem by state management. Check it. As a result of the flag check, if the service is provided in the subsystem designated by the operator, the first subsystem designated in step 21 is tested to test whether the system can operate normally. If it is determined that the subsystem is normal, step 22 requires that the announcement broadcast is connected to the designated first subsystem. However, if the subsystem is abnormal, in step 23 it is tested whether another next subsystem is specified, and if specified, in step 24 it is tested whether the next subsystem is normal. If it is determined that the next sub system is normal, the process returns to step 22 for requesting to connect the announcement broadcast to the designated next sub system, and if abnormal, the normal service is provided or terminated by state management according to the type of flag. Subsequently, after performing a twenty-second step of requesting to connect the announcement broadcast to the designated first subsystem, in step 25 it is determined whether or not normal service is provided by the designated subsystem. If the normal service is provided, the service is terminated after providing the service to the subscriber by connecting the call path of its own subsystem in step 26. However, upon receiving a report that normal service is not provided in step 25, step 27 tests whether the request of step 22 is the first request from another subsystem. If it is the first time, the process returns to the twenty-third step. If not, the normal service or the program is terminated by state management according to the flag type.

On the other hand, if the sub-system which can provide the announcement service in step 19 is a home station that cannot provide the announcement service, in step 28, the state of the home station is unconditionally limited to its own country. As a result of the test, the state of the mother station performs the service request to the mother country by performing the twenty-second step, and if the mother station is abnormal, terminates as it is.

FIG. 3 is a flowchart illustrating a process of searching for a service announcement by searching for a subsystem that can be serviced by state management rather than an operator as a second embodiment of the present invention. Referring to the drawings, when an error occurs during call processing and a broadcast service should be provided to subscribers, step 16 of requesting connection of announcement broadcasts or step 20 of testing whether a user-specified subsystem exists is present. The steps are the same as those of the embodiment described with reference to FIG. If there is a subsystem designated by the operator, step 18 provides the announcement service through the subsystem by the operator. However, if the subsystem specified by the operator does not exist in step 30, another next subsystem is searched. In step 31, after detecting whether the next sub system is normal, in step 32, a request for connection of a guide broadcast is requested. In step 33, the next sub system detects whether a normal announcement service is being provided, and if the service is normally provided, in step 34, the subscriber broadcast information is provided to the subscribers by connecting their own subsystem call line. to provide. However, if the next subsystem is not normal in step 31, the next step 35 searches for another next subsystem capable of performing normal service among adjacent subsystems. Subsequently, in step 36, the next subsystem discovered in step 35 is tested to be equal to its own subsystem. If it is the same as its own subsystem, since there is no subsystem that can be serviced normally, the announcement broadcast is not provided.

4 is a flowchart illustrating a process of serving an announcement broadcast in a subsystem designated by the operator and a process of searching for a subsystem that can be normally serviced by state management and serving the announcement broadcast. Steps 16 to 20 and 28 of the figure perform the same steps as shown in FIGS. 2 and 3. The process proceeding from the twenty to twenty-first to the twenty-seventh step represents a process of serving the announcement broadcast in the subsystem designated by the operator, and the process from the twenty to twenty-seventh step to the thirty-third step is A process of searching for a subsidiary serviceable normally by state management and serving an announcement broadcast is described. As described above, when an error occurs during call processing and the cause of the error is to be transmitted to the subscriber through another announcement device existing in the switching system, the announcement service is provided more quickly and efficiently by performing the above two methods. You can do it.

Although described with reference to the preferred embodiment of the present invention as described above, those skilled in the art can understand that various modifications and changes can be made without departing from the spirit and scope of the present invention described in the claims below. There will be.

According to the present invention as described above, when an error occurs during call processing and the cause of the error is to be transmitted to the subscriber, a subsystem capable of performing announcement service directly in the subsystem designated by the operator or serving normally by state management By distributing and executing the announcement in a manner of delivering the announcement to the subscribers, it is possible to continuously provide the normal announcement service to the subscribers and to analyze the cause of the call processing failure.

Claims (10)

A subsystem searching method for providing an optimal announcement service among subsystems in a switching system, the method comprising: checking the availability of an announcement service in a sub-system of a local station when an announcement connection request occurs; Determining whether there is a subsystem previously designated by an operator in the case of a service unavailable in the subsystem of the own country; Searching for another subsystem capable of performing normal service among neighboring subsystems, if the predetermined subsystem exists, and causing the designated subsystem to serve; Connecting a call path to provide a service to a subscriber through the discovered subsystem. A method for searching for a subsystem that can be provided by an operator in an exchange system, the method comprising: detecting whether an announcement service is available in a sub-system when an announcement connection request is made; Detecting whether a subsystem designated by an operator exists when the announcement service is not available in its own subsystem as a result of the detection; Connecting a call path to provide a service to a subscriber via a designated subsystem if a subsystem designated by the operator exists. The method as claimed in claim 2, wherein the announcement service is directly provided to subscribers through the subsystem when the announcement service is available in its own subsystem. The method of claim 2, wherein the providing of the announcement service to the subscribers through the subsystem designated by the operator comprises: detecting whether the subsystem designated by the operator is normal and the subsystem designated by the operator is normal. Requesting an announcement broadcast connection; detecting whether a normal announcement service is started after the announcement request; and if a normal announcement service is started after the announcement request, the sub-channel call path is started. Connecting to provide announcement service to subscribers. 5. The method of claim 4, further comprising: detecting whether a designated subsystem is a first designated subsystem when the normal announcement service is not started after the announcement request for connecting the announcement, and wherein the designated subsystem is the first designated subsystem. Detecting whether the next sub system is designated; detecting whether the next sub system is normal when the next sub system is designated; and requesting an announcement broadcast connection when the next sub system is normal; Method comprising a. CLAIMS What is claimed is: 1. A method for discovering a subsystem capable of providing service by state management in a switching system; Detecting whether an announcement service is available in its own subsystem; Detecting whether a subsystem designated by an operator exists when the announcement service is not available in its own subsystem as a result of the detection; Obtaining a next subsystem if the subsystem designated by the operator does not exist; Connecting a call path to provide a service to a subscriber through the next subsystem. 7. The method of claim 6, wherein the announcement service is provided directly to subscribers through the subsystem when the announcement service is available in its own subsystem. The method as claimed in claim 6, wherein, when the subsystem designated by the operator exists, the announcement service is provided through the designated subsystem. The method of claim 6, wherein the providing of the announcement service to the subscribers through the next subsystem includes: detecting whether the next subsystem is normal, and requesting connection of the announcement broadcast when the next subsystem is normal. And detecting whether the normal announcement service starts after the announcement request for connection, and when the announcement service is started after the announcement request, the subscriber broadcasts to the subscribers by connecting their sub-system call paths. Providing a service. 10. The method of claim 9, further comprising: searching for another next subsystem capable of performing a normal service among adjacent subsystems when the normal announcement service is not started after the announcement request for connecting the announcement and the searched text subsystem itself. And if the next subsystem is equal to its own subsystem, and if it is not the same, detecting whether the next subsystem is normal.