JPS62188593A - Key telephone system - Google Patents

Abstract

PURPOSE:To know the presence and the absence of other user by a simple key operation of respective key telephone sets by providing a memory for storing presence information and absence information of the user at every key telephone set in a master equipment. CONSTITUTION:The master equipment 1 is provided with a CPU 11 and the memory 12 and the respective key telephone sets 2-5 are respectively provided with liquid crystal displays 21-51, absence keys 22-52 and check keys 23-53. For instance, when the user of the key telephone set 5 desires to recognize the presence or the absence of the user of the push button telephone set 2 for instance, the user of the key telephone set 5 depresses the check key 53 and subsequently dials the telephone number of the key telephone set 2, and then the CPU 11 reads the contents of an area corresponding to the key telephone set 2 from the memory 12 and transmits it to the key telephone set 5. Accordingly, on the liquid crystal display 51, the presence information or the absence information of the user of the key telephone set 2 is displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a button telephone device, and more particularly to a telephone device that displays messages of presence and absence.

[Conventional technology]

Conventionally, this type of presence/absence display has been performed by turning on/off a dedicated switch on a specially installed or closed display board lamp, or via the main device of a button telephone device instead of a dedicated switch. The display was controlled by +113i.

[Problem that the invention seeks to solve]

The above-mentioned conventional button telephone device requires a dedicated display panel, so it has the drawbacks of securing a large and easy-to-read installation location and creating a special phone cage that takes into consideration wiring work, etc. be.

[Means for solving problems]

The button telephone device of the present invention includes a main device and a plurality of button telephones each having a liquid crystal display, wherein the main device has a central control section that controls the sequence control of the button telephone device, and a user's control section. A memory for storing presence information and absence information is provided, and when a button is operated on the first button telephone, the contents of the memory corresponding to the first button telephone are displayed all at once on the liquid crystal display of the button telephone. Further, when a button is operated on the second button telephone, the contents of the memory corresponding to the first button telephone are displayed on the liquid crystal display of the second button telephone.

〔Example〕

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

FIG. 1 is a block diagram showing one embodiment of the button telephone device of the present invention.

In the figure, the key telephone device includes a main device 1 and a plurality of key telephones 2. ~5, the main device 1 is a central control unit (
Each button telephone 2. -5 are liquid crystal displays 21. to 5, respectively. ~51. Absence button 22. ~52 and check button 23. ~53.

Next, the operation of this embodiment will be explained.

For example, if the user of the button telephone 2 presses the absence button 22 before making himself/herself absent, the CPU II stores this absence information in the memory 12 and also stores the absence information in the memory 12. ~5
After sending out the display forecast sound all at once for a short time, the absence information is sent out for a predetermined period of time (for example, 10 seconds), and the display is displayed on the liquid crystal display 3.
1. to 51. Therefore, the button telephone 3. ~
5 users listen to the display forecast sound and turn on their respective liquid crystal displays 31. By looking at the 10-second display of 51, it can be known that the user of the button telephone 2 is absent.

Next, when the user of the button telephone 2 returns home and presses the absence button 22 again, the CPU II rewrites the contents of the area corresponding to the button telephone 2 in the memory 12 (that is, absence information) to presence information, and Button phone 1i! 3.
After sending out the display forecast sound all at once for a short period of time, the presence information is sent out for a predetermined period of time (approximately 10 seconds), and the display is displayed on the liquid crystal display 3.
1. to 51. Therefore, button telephone 3. ~5
The user of the button telephone 2 can know that the user of the key telephone 2 has returned home.

Next, for example, when the user of the button telephone 5 wants to confirm whether the user of the button telephone 2 is present or absent, the user of the button telephone 5 presses the check button 53 and then calls the button telephone fi2. When the number is dialed, CPtJll reads the contents of the area corresponding to button telephone R2 from the memory 12 and sends it to button telephone @5. Therefore, the presence information or absence information of the user of the button telephone 2 is displayed on the liquid crystal display 51.

[Effects of the Invention] As explained above, the present invention provides a main device with a memory for storing user presence information and user absence information for each key telephone, so that each key telephone can be used for other purposes with simple button operations. It is possible to know the presence or absence of a person, and there is no need for a dedicated display panel, which has the effect of reducing costs.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the button telephone device of the present invention. 1... Main device, 2. ~5... button telephone, 11.
... central control unit (CPU), 12... memory, 21.
~51...Liquid crystal display, 22. ~52... Absence button, 23, ~53... Check button.

Claims (1)

[Claims] In a key telephone device comprising a main device and a plurality of key telephones each having a liquid crystal display, the main device stores a central control unit that controls sequence control of the key telephone device, and user presence information and absence information. Equipped with memory,
When a button is operated on a first button telephone, the contents of the memory corresponding to the first button telephone are displayed all at once on the liquid crystal displays of other button telephones, and when a button is operated on a second button telephone, the contents corresponding to the first button telephone are displayed all at once. A button telephone device characterized in that contents of a memory corresponding to the first button telephone are displayed on a liquid crystal display of the second button telephone.