KR890011309A - Restrictive call handling method of incoming subscriber line when accepting private exchange in electronic exchange - Google Patents

Abstract

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Description

Restrictive call handling method of incoming subscriber line when accepting private exchange in electronic exchange

Since this is an open matter, no full text was included.

1 is a block diagram of a portion of an electronic exchange for explaining the present invention.

Claims (1)

A method of restricting call processing of an incoming subscriber line of a private exchange housed in an electronic exchange having a subscriber memory table of a private exchange, wherein the incoming call signal is searched for the incoming line type when the incoming call arrives, and the corresponding incoming line is received. In the case of normal processing and the private exchange subscriber receiving line, the first step of searching whether the incoming line is the representative defense line; and in the first step, when the called line is not the representative number line, the incoming line of the corresponding line is processed and the representative number A second step of retrieving whether the representative number line is busy when determining that it is a line; and if the restricted search registration bit is set in the private exchange receiving subscriber memory table when it is determined that the representative number line is busy in the second step; The third step of searching for and the restriction search registration bit is not set in the search of the third step The fourth step of hunting the incoming line in the entire acceptance line, processing the normal incoming signal when the free state exists, and busy processing the incoming signal when the free line does not exist. A fifth that reads the number of incoming lines in the restricted search line area from the private exchange subscriber memory table when it determines that the registration bit is set, and sends only incoming lines to the line in the free state by searching only the number of the available incoming lines. A method characterized by consisting of steps. ※ Note: The disclosure is based on the initial application.