JPH03224393A - Key telephone system - Google Patents

Abstract

PURPOSE:To allow a caller side to grasp immediately an absent state by using a timer circuit so as to count the time when a called key telephone set is called individually and setting the absence state to the telephone set when the called party does not reply even lapse of a prescribed time. CONSTITUTION:In the presence of an extension incoming call, a processor 7 retrieves a memory 6 as to whether or not a called key telephone set 2-2 is set in the absence mode. When the absence mode is not set, the processor 7 monitors whether or not the called key telephone set 2-2 replies and a timer circuit 10 is controlled to start counting. Even when the count (n) reaches the time (t) stored in the memory 6, when the called key telephone set 2-2 gives no reply, the processor 7 controls the telephone set to set the absence setting to the called key telephone set 2-2 and the result is stored in the memory 6.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a button telephone device comprising a main device accommodating a central office line from a telephone office and a plurality of key telephones connected to the main device.

BACKGROUND OF THE INVENTION FIG. 3 is a schematic block diagram showing an extension system of a conventional key telephone device. In FIG. 3, reference numeral 1 indicates a main unit that accommodates a central office line from a central telephone office, and 21.2-2.2-m indicates a button telephone connected to the main unit 1 by an extension line. The number m of these button telephones is set according to conditions. In the main device 1, 3 inputs data from the key telephones 2 to 1.2-2, . . . 2-m and the key telephones 21.2-2, .
2-m control circuit, 4 is a button telephone 2-
1.2-2, . . . A tone circuit for sending an individual calling tone to 2m, 5 is a tone circuit 4 and a button telephone 2-
1. Contact point for selectively connecting 2-2, . . . 2-m, 6
7 is a memory that stores telephone data such as presence/absence of absence settings and speed dialing of the button telephones 2-1, 2-2, . . . 2-m, and 7 is a processor (CPU) that controls the entire device. In the button telephones 21.2-2,...2-m, 8 is a key input circuit connected to the control circuit 3 of the main device 1, and 9 is connected to the tone circuit 4 of the main device 1 via the contact 5. This is an acoustic circuit.

The operation of the above configuration will be described below.

For example, when a key corresponding to the absence setting is input from the key circuit 8 in the button telephone 2-1, the information is input to the processor 7 via the control circuit 3 of the main device 1. Based on this, the processor 7 determines that the key telephone 2-1 is set to be absent, and stores this information in the memory 6.

After that, when the telephone number of the button telephone 2-1 is dialed from the key input circuit 8 of another key telephone, for example, 2-2, the dial information is transferred to the control circuit 3 of the main device 1.
is input to the processor 7 via. Based on this, the processor 7 searches the memory 6. Here, since the key telephone 2-1 on the called side is set to be absent as described above, its information is retrieved from the memory 6. When the processor 7 confirms the absence setting of the called button telephone 2-1 in this manner, it determines that the button telephone 2-1 is set to absence, and meters the corresponding contact 5, and also meters the tone circuit 2-1. to control the sound circuit 9 of the calling side button telephone 2-2.
A busy tone is sent to the button telephone set 2-2, and the busy tone is emitted from the button telephone set 2-2.

Further, when a key corresponding to, for example, canceling the absence setting is inputted from the key input circuit 8 of the button telephone 2-1, the information is inputted to the processor 7 via the control circuit 3 of the main device 1. Based on this, the processor 7 uses the button telephone 2-1.
It is determined that the absence setting has been canceled, and the absence setting information stored in the memory 6 is deleted.

In this way, even with the above-mentioned conventional key telephone device, the absence setting can be set and canceled by key operations from the key telephone.

Problems to be Solved by the Invention However, in the above-mentioned conventional key telephone device, if the user of the called party's key telephone is absent without making the absence setting, the calling party's key telephone does not allow an individual extension call. After that, even if another calling party's key telephone makes an extension call, an individual extension call must be made.Ascertain whether the called party's key telephone is present or absent. The problem was that I couldn't do it.

The present invention solves such conventional problems, and when a key telephone user becomes absent without setting the telephone to be absent and an extension call is received, the telephone's absentee setting is automatically set. An object of the present invention is to provide a button telephone device in which, when an extension call is made to the key telephone, the calling party can immediately know that the person is absent after the call. That is.

Means for Solving the Problems In order to achieve the above object, the present invention includes a timer circuit that counts the length of time that the extension is ringing to the called party's key telephone when an extension call is received, and a timer circuit that counts the length of time that the called party's key telephone is ringing. The device is equipped with a control means for setting the called party's key telephone to be absent if there is no response within the time limit.

According to the present invention, a timer circuit counts the length of time that the called party's key telephone is individually ringing an extension, and if the called party's key telephone does not respond after a certain period of time has elapsed, , the control means sets the telephone of the called party to be absent.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic block diagram showing an extension system of a key telephone device in an embodiment of the present invention.

In this embodiment, the same parts as those in the conventional example described above are given the same reference numerals, and the explanation thereof will be omitted, and different configurations will be explained.

The features of this embodiment are as shown in Fig. 1.
The setting contents are stored in the memory 6 by the processor 7, and a timer circuit (counter) 10 is provided for counting the time during which the extensions of the key telephones 2-1, 2-m, . . . , 2-m are ringing.

In the above configuration, the absence setting operation will be explained below with reference to the flowchart of FIG. 2.

Assume now that the calling party is the key telephone 2-1 and the called party is the key telephone 2-2.

Here, the key input circuit 8 of the button telephone 2-1 on the calling side
(See Figure 3), when you dial the telephone number of the called party's button telephone 2-2, the dial information is transferred to the main device 1.
The signal is input to the processor 7 via the control circuit 3. Based on this, the processor 7 meters the corresponding contact 5 and controls the tone circuit 4 to send an extension individual tone to the audio circuit 9 (see FIG. 3) of the called button telephone 2-2. , let it be released. When this extension call is received (step 11), the processor 7
The memory 6 is searched to see whether or not -2 is set to be absent (step 12). Then, if the "absence setting" has not been made, the processor 7
-2 responds (step 13), and controls the timer circuit 10 to start counting (step 14). If the called party's key telephone 2-2 does not respond even after the count number n, that is, the extension ringing time has reached the preset time t stored in the memory 6, (step 15 ), processor 7
is stored in the memory 6 so that the key telephone 2-2 of the called party is set to be absent (step 16). After that, when another key telephone 2-3 makes an extension call to the key telephone 2-2 in the same manner as described above (step 11), the key telephone 2-2 is controlled to be set to "absent" as described above. (Step 12), the processor 7 makes the corresponding contact 5, controls the tone circuit 4 to send a busy tone to the acoustic circuit 9 of the button telephone 2-3 on the calling side, and presses the button. A busy tone is emitted from the telephone 2-2 (step 17). Therefore, it is possible to know that the user is absent even if the user does not set the absentee status from the key telephone 2-2 in advance. In step 13, when the called button telephone 2-2 responds, the processor 7 connects the calling button telephone 21 and the called button telephone 2-2 to make a conversation (step 18).

In addition, the above-mentioned absence setting is, for example, the key telephone 2-
When 1.2-2, .

Effects of the Invention As described above, according to the present invention, the timer circuit counts the time that the called party's key telephone is being individually called by an extension, and even if the called party's key telephone has passed a certain period of time, If there is no response, the control means sets the telephone of the called party to be absent. In this way, even if the user of a key telephone is absent without making the call setting, if an extension call is received and there is no response for a certain period of time, the key telephone will be determined to be absent and will automatically be disconnected. After making the settings, when an extension call is made to the key telephone, the calling party can immediately know that the caller is out of the office after the extension call.

[Brief explanation of drawings]

FIG. 1 is a schematic block diagram showing an extension system of a key telephone device according to an embodiment of the present invention, FIG. 2 is a flowchart for explaining the absence setting operation according to the above embodiment, and FIG. 3 is an extension line system of a conventional key telephone device. FIG. 2 is a schematic block diagram showing the system. DESCRIPTION OF SYMBOLS 1... Main device, 2-1.2-2,... 2m... Button telephone, 3... Control circuit, 4... Tone circuit,
5...Contact, 6...Memory, 7...Processor, 1
0 timer circuit.

Claims (1)

[Claims] A timer circuit that counts the length of time the extension is ringing for the called party's button telephone when an extension call is received, and a timer circuit for the called party's button telephone if the called party's button telephone does not respond within a certain period of time. A button telephone device equipped with a control means for setting an absentee setting.