KR19990034378A - How to restrict a call in a private exchange - Google Patents

Abstract

The present invention relates to a call limiting method of a private exchange which allows each private subscriber to limit his / her call to a desired level in a private exchange. In the prior art, a private exchange can restrict a call of each private subscriber as prescribed. Although there is a drawback that a particular private subscriber wants to restrict a call more than a certain level as necessary, there is a drawback that the user cannot arbitrarily restrict a call. By limiting this, the load of the private exchange is reduced and the use of each private subscriber's phone can be improved, thereby improving the above-described drawbacks.

Description

How to restrict a call in a private exchange

The present invention relates to a call limiting method of a private exchange, and more particularly, to a call limiting method of a private exchange which allows each private subscriber to limit his / her call to a desired level.

In this regard, in the private exchange according to the prior art, each private subscriber connected to the private exchange is using a private telephone to transmit a dual tone multi frequency (DTMF) signal according to a specific telephone number to the private exchange side. The exchange translates the phone number and connects the call with the appropriate subscriber so that the private subscriber can make a phone call with the other party.

Thus, the operator operating the private exchange can limit the call of each private subscriber to each class.

However, in the conventional technology, there is a drawback that the private exchange side restricts each private subscriber's call as prescribed, and even if a specific private subscriber wants to restrict a certain level or more of the calls as necessary, there is a drawback that the call cannot be restricted arbitrarily.

An object of the present invention is to provide a method for limiting a call in a private exchange that allows each private subscriber registered in a call limiting service to limit a desired level in a private exchange. There is this.

1 is a software structural diagram showing an embodiment of a private exchange for applying a call restriction method of a private exchange according to the present invention;

FIG. 2 is a flow chart showing step by step an embodiment of a call restriction method of a private exchange according to FIG. 1; FIG.

<Description of Symbols for Main Parts of Drawings>

10: lower processor 12: upper processor

14: I / O Processor

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, an embodiment of the present invention for achieving the above object in detail.

FIG. 1 is a software structural diagram showing an embodiment of a private exchange for applying a call restriction method of a private exchange according to the present invention. The state of each line is monitored and reported to a main processor (MP) 12. In response to a control command of the upper processor 12, a lower processor (LP) 10 which controls each line, performs subscriber and relay call processing, and performs a maintenance function for system state management. And an input output processor (IOP) 14 which is in charge of controlling an input output port for matching with an upper processor 12 and an operator.

The present invention thus made will be described in detail with reference to FIG. 2 as follows.

First, the lower processor 10 monitors the status of each private subscriber line and reports the status to the upper processor 12, receives a control command of the upper processor 12 to control each private subscriber line, and the upper processor 12 The subscriber and relay call processing controls the exchange between each subscriber, and performs maintenance functions for managing the state of the private exchange system.

Next, the input / output processor 14 is responsible for controlling the input and output ports for matching the operator and the private exchange to control the communication between the operator and the private exchange.

FIG. 2 is a flowchart illustrating an exemplary embodiment of a call restriction method of a private exchange according to FIG. 1.

First, each private subscriber is monitored to determine whether the telephone of the specific private subscriber is a subscriber who is registered in the call restriction service while being hooked off (20, 22).

Next, in the case of the private subscriber registered in the call restriction service in the above-described steps 20 and 22, if the private subscriber requests restricted call processing, an announcement broadcast to the private subscriber is transmitted to the private subscriber (24). , 26).

In addition, if the private subscriber is not registered in the call restriction service in the above-described steps 20 and 22, general call processing is performed. If the unrestricted call processing is requested in the above-described steps 24 and 26, the call is processed normally. (28,30).

At this time, the registration and release of the above-mentioned call restriction service may be performed by the operator of the private exchange, or may be performed by a predetermined procedure between the private exchange and the private subscriber's telephone, and the call restriction may be in various forms. Each type can be used for call restriction service.

As described above, the present invention has the effect of reducing the load on the private exchange and efficiently using each private subscriber's phone by allowing each private subscriber registered in the call restriction service to the desired level in the private exchange. There is.

Claims (1)

A first step (20, 22) of determining whether a telephone of a specific private subscriber is a subscriber who is registered in a call restriction service while being hooked off; In the first step (20, 22), if the private subscriber registered in the call restriction service, if the private subscriber requests restricted call processing, the second step of sending out the announcement to inform the private subscriber that the service is not available. (24,26); If it is not the private subscriber registered in the call restriction service in the first step (20, 22), the general call processing is performed, and if the unrestricted call processing is requested in the second step (24, 26), the call is processed normally. And a third step (28, 30).