JPH0389660A - Private branch exchange - Google Patents

Abstract

PURPOSE:To use a private branch exchange for an extension subscriber whose receiving place is different day and night by providing a calling means which changes the call destination of direct telephone communication in accordance with the time zone. CONSTITUTION:When a subscriber A of a telephone TEL 1 hooks off, a CPU 6 detects the call and reads out the subscriber class of the subscriber A, and the CPU 6 reads out a memory device (MEM) 7 where call destinations are registered when discriminating that the subscriber A is an originating subscriber of direct telephone communication. Plural call destinations of the subscriber A are registered in the MEM 7, and the CPU 6 reads out a system clock 8 and uses the time of this clock as the index to select and read out the call destination for this point of time from the MEM 7 and calls the destination (subscriber B, C, or D).

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an intra-ellipse exchange Redjkg, and more particularly to a transverse exchange having a direct telephone function.

[Conventional technology]

Conventionally, in this type of private branch exchange (hereinafter referred to as PBX), when a direct telephone subscriber makes a call, the called party is the PBX.
The system was configured to call a fixed extension subscriber based on station data set in advance in X.

[Problem to be solved by the invention]

In the conventional PBX mentioned above, the destination of the direct telephone call is the PBX.
Since the system is configured to call a fixed extension subscriber based on preset station data, etc., there is a drawback that the call destination cannot be changed depending on the time of day.

[Means to solve the problem]

The private branch exchange of the present invention is a private branch exchange having a system clock and a direct telephone function, and has a calling means that changes the called party to a preset time when a direct telephone subscriber makes a call. ing.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. In FIG. 1, this embodiment has direct telephone subscribers A, B, and C.
, D's telephones (hereinafter referred to as TEI-) 1, 2, 3.4, a replacement switch (hereinafter referred to as SW) 5, a central control unit (hereinafter referred to as CPU) 6, and a direct telephone call destination. It comprises a registered memory device (hereinafter referred to as MEM) 7 and a system clock 8.

FIG. 2 is a diagram showing an example of a memory map of the memory device in FIG. 1.

Next, the operation of this embodiment will be explained using FIG. 1 and FIG. 2 together.

When subscriber A at station I goes off-hook, CPU 6 detects the call, reads the subscriber class of subscriber A, and identifies subscriber A as the caller of the direct call, CPU 6 selects the called party. This ME
A plurality of call destinations of subscriber A are registered in M7, but the CPU 6 reads the system clock 8, uses this result as an index, selects and reads the current call destination from MEM7, and selects and reads the current call destination (subscriber B, C or D).

〔Effect of the invention〕

As explained above, the present invention has a calling means that allows the calling destination of a direct telephone to be changed depending on the time of day. It has an effect that can be used for.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a diagram showing an example of a memory map of the memory device in FIG. 1. 1.2.3.4...Telephones of subscribers A, B, C, D (
5... Replacement switch (SW), 6... Central control unit (CPU), 7... Memory device (MEM)
, 8... system clock.

Claims (1)

[Claims] A private branch exchange having a system clock and a direct telephone function, characterized in that it has a calling means for changing the called party to a preset time and calling when a direct telephone subscriber makes a call.