JPH0495497A - Key telephone system - Google Patents

Abstract

PURPOSE:To stop the operation of a system automatically by closing all trunk lines through the operation of a trunk line closing means when an operator inputs a request to stop the system operation by dial input, and then outputting an alarm to respective telephone sets. CONSTITUTION:A microcomputer 7 checks whether or not a dial analyzing means 3 outputs the system stop request to the trunk line closing means 2. When the system stop request is outputted, the storage contents of a storage part 7a are checked to decide whether or not there is a free trunk line. When there is the free trunk line, a trunk line control means 1 closes the free trunk line. Then it is checked whether or not all the trunk lines are closed. When not, the control is returned to the last process, which is repeated. When all the trunk lines are closed, the alarm is outputted to the respective telephone sets through an alarm output means 4 and a telephone set control means 6. Then the operation of the system is stopped through a system control means 5.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a button telephone device that automatically performs all operations up to the point of stopping the operation of the system.

Conventional Technology Conventionally, when a system is stopped during operation of this type of key telephone device to perform hardware replacement, the operator checks if the central office line is free, and if the line is free, the operator puts the line on hold to prevent incoming calls or other calls. This was accomplished through a series of operations that included blocking the use of local office lines, and turning off the power to the system when all local lines were put on hold.

Problems to be Solved by the Invention However, with the above-mentioned conventional button telephone device, the operator manually performs a series of operations up to the point of stopping the operation of the system, resulting in time loss and waiting until the central office line in use becomes vacant. , when attempting to block the line at the timing when the line has ended, there is a problem in that the timing of the blockage is delayed and other people end up using the local line, resulting in a long waiting time.

The present invention is intended to solve these conventional problems, and aims to provide an excellent key telephone device that can automatically perform all operations up to the point of stopping the operation of the system.

Means for Solving the Problems In order to achieve the above object, the present invention includes dial analysis means for accepting system stop requests from telephones, office line control means for controlling each office line, and dial analysis means for accepting system analysis requests from telephones. At the time of reception, it is monitored whether or not an empty station line exists, and if an empty station line exists, the station line control means is instructed to block the empty station line, and the blocking of all station lines is completed. a station line blocking means that repeats the above station line blocking operation until
The system is equipped with an output means that outputs an alarm to the telephone when all station lines are blocked, and a system control means that stops the operation of the system after the above-mentioned alarm is output, so that the operation of the system is automatically stopped. It is.

Effects The present invention has the following effects due to the above structure. In other words, when an operator issues a request to stop system operation by inputting a dial, the station line blocking means operates to block all station lines, and then an alarm is output to each telephone and system operation is automatically stopped. do. Therefore,
The operator does not have to constantly monitor the state of the station line or perform operations to close the perimeter (in the meantime, he can spend his time doing other things).

Embodiment FIG. 1 is a block diagram of main parts showing the configuration of an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a central office line control means for transmitting, receiving, and holding calls on the central office line. Reference numeral 2 denotes a station line blocking means that monitors the status of the station line and, if an empty station line exists, automatically holds and blocks the station line until all the station lines are blocked. 3 is a dial analysis means that analyzes dial information from the telephone control means 6 and issues a request. Reference numeral 4 denotes an alarm output means for receiving the output of the central office line blocking means 2 and outputting an alarm to the telephone control means 6.

Reference numeral 5 denotes a system control means that receives the output of the central line blocking means 2 and stops the operation of the system. 6 is a telephone control means for controlling the telephone.

FIG. 2 is a block diagram showing a specific example in which the central office line blocking means 2 and dial analysis means 3 in the embodiment shown in FIG. 1 are implemented using a microcomputer 7. In FIG. 2, the same parts as in FIG. 1 are given the same reference numerals. The microcomputer 7 shown in FIG. 2 analyzes dial information from the telephone using a built-in program and generates control signals for driving the office line control means 1, alarm output means 4, and system control means 5. be. Specifically, a storage unit 7a that stores information such as the status of telephones and central office lines.
, an input section 7b for inputting the output of the telephone control means 6, a central office line control means 1, an alarm output means 4, and a system control means 5.
It has an output section 7c which outputs a control signal to the memory section 7a, an arithmetic control section 7d which controls the storage section 7a, input section 7b and output section 7c, respectively, and performs data comparison operations and the like.

Next, the operation of this embodiment will be explained. FIG. 3 shows the main part of a flowchart under the control of the microcomputer 7.

First, in step 10, the microcomputer 7 sends the information from the dial analysis means 3 to the central office line blocking means 2.
Check whether a system stop request has been output.

If a system stop request is output, step 11
Then, the contents of the storage section 7a are checked to determine whether or not an open station line exists. If an open station line exists, the process proceeds to step 12, in which the open station line is blocked through the station line control means 1. Next, in step 13, it is checked whether all station lines have been blocked. If all station lines have not been blocked, the process returns to step 11 and the processes of steps 11 to 13 are repeated. When all the station lines have been blocked, the process proceeds to step 14, where an alarm is output to each telephone through the alarm output means 4 and the telephone control means 6. Next, the process proceeds to step 15, and the operation of the system is stopped through the system control means 5.

In this way, according to the above embodiment, when the dial analysis means 3 outputs a system operation stop request, the alarm output means outputs the alarm when the office line blocking means 2 finishes blocking the empty station line and blocking all station lines. A series of steps such as outputting an alarm to each telephone by step 4 and stopping system operation by system control means 5 are all performed automatically without any intervention from the operator.

Effects of the Invention As is clear from the above-mentioned embodiments, when the operator makes a request to stop system operation by inputting a dial, the central office line blocking means operates to block all central office lines, and then sends a message to each telephone. An alarm is output and system operation stops. Since the above series of steps are all performed automatically, the operator does not need to constantly monitor the station line status or perform operations to block the station line, which has the effect of allowing the operator to use time effectively. .

[Brief explanation of drawings]

FIG. 1 is a block diagram of the main parts of a button telephone device according to an embodiment of the present invention, and FIG. 2 shows an example in which the dial analysis means and central office line blocking means in the embodiment shown in FIG. 1 are configured using a microcomputer. FIG. 3 is a flowchart showing the operation of the embodiment shown in FIGS. 1 and 2. 1... Office line control means, 2... Office line blocking means, 3...
・Dial analysis means, 4... Alarm 8 power means, 5 system control means, 6... Telephone control means, 7...
microcomputer. 6) Yuu's agent, patent attorney Shigetaka Awano, 1 person

Claims (1)

[Claims] dial analysis means that accepts system stop requests from telephones; office line control means that controls each office line; If a central office line exists, the central office line blocking means instructs the central office line control means to block the vacant central office line and repeats the central office line blocking operation until all central office lines are blocked; What is claimed is: 1. A button telephone device comprising: an alarm output means for outputting an alarm to the telephone when the alarm is output; and a system control means for stopping the operation of the system after the alarm is output.