JPH0828903B2 - Button telephone device and its automatic response starting method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic answering terminal start-up method, and more particularly to an automatic answering terminal start-up method for a key telephone device capable of setting an automatic answer function in the terminal.

(Prior Art) A key telephone housed in a main unit of a key telephone unit as a terminal has a line button corresponding to a line connected to the main unit, and an arbitrary station can be selected from a plurality of telephones depending on a setting. It is possible to respond to the line. When the telephone responds to a station line, it is possible to respond to the corresponding station line by pressing a station line button that normally indicates an incoming call. However, in a telephone that frequently responds to a station line, it is troublesome to press the station line button each time the telephone is answered and raise the handset to make a call. For this reason, there is a key telephone device that can set an automatic response function capable of automatically responding to a station line when the handset of the telephone is raised.

When a key telephone set with the automatic answering function is supplied with power from the main unit at startup, the CPU on the telephone side operates by power supply, and TCL indicating the type and activation of the telephone.
Send the (TERMINAL CLASS) signal to the main unit. When the main device receives this signal, the main device sends an online command to the telephone to bring the main device and this telephone into the online state, and the telephone service is started.

(Problems to be Solved by the Invention) However, in a terminal having a conventional automatic response function, when power is supplied from the main device at the time of start-up, a start signal is sent to the main device even in a usage state such as a handset raised state. Send to. When the main device receives this signal, it goes online by sending an online command to this terminal. Therefore, when an incoming command is received from the central line, for example, after the main unit transmits an online command to the terminal, the terminal sends an off-hook signal to the main unit because the handset is detached. Upon receiving this signal, the main unit connects the station line to the terminal, and the station line is connected to the terminal having no responder.

The present invention solves the above-mentioned drawbacks of the prior art and provides an automatic response terminal start-up method that prevents a terminal to which an automatic response function is set from performing invalid capture or invalid response of, for example, a station line. To aim.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides an automatic response terminal start-up method of a button telephone device capable of setting an automatic response function in a terminal connected to a main device, The main device has first control means for controlling the terminal, and the terminal has second control means for sending an activation signal of the terminal to the first control means and whether the terminal is in a used state or an unused state. A second control means for detecting whether the terminal is in a state and notifying the second control means of the detected state. Notify the means,
The second control means identifies whether the notification is a signal indicating a used state or an unused state of the terminal, and when the notification is a signal indicating the unused state, the start signal is sent to the first control means. To send.

(Operation) According to the present invention, the detection means detects the state of the terminal when the terminal is started up, and notifies the second control means of this state. The second control means sends a start signal to the first control means when this notification indicates the unused state of the terminal, and when this notification indicates the used state, the start signal is changed to the unused state. Stay in the state.

(Embodiment) Next, an embodiment of the automatic response terminal start-up method according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, there is shown a functional block diagram of an embodiment in which a terminal start-up system according to the present invention is applied to a key telephone device capable of setting an automatic response function in a terminal. In this embodiment, a key telephone main unit 1 accommodates a terminal 2 of the main unit 1 via a control line 4 and a power supply line 3. Main device 1
Has a terminal interface CPU 10, a power supply switch 14, and a power supply 12 for supplying power to the terminal 2.

The CPU 10 has a port B connected to the control line 4 and exchanges control signals with the terminal 2 through this port B. The control signal is, for example, a TCL signal which is an activation signal indicating the identification of the terminal 2 sent from the terminal 2 to the main device 1,
Alternatively, it is an online command sent from the main device 1 to the terminal 2. When the terminal 2 is, for example, a key telephone, if the terminal 2 is in the off-hook state after receiving the online command, the off-hook command is sent to the main device 1.
Further, the CPU 10 has a port C connected to the control terminal 100 of the switch 14, and controls the switch 14 from this port. That is, when the CPU 10 is instructed by the control unit (not shown) of the main device 1 to supply power to the terminal 2, the output of the port C is output.
The switch 14 is operated by 100.

The power supply output 120 of the power supply 12 is connected to the input side of the switch 14, and the output side is connected to the power supply line 3. Therefore, the operation of the switch 14 causes the power supply 12 to supply power to the power supply line 3. The switch 14 is, for example, a switch element such as a transistor, and the switch 14 is the terminal 2
Each is provided in the main device 1.

The terminal 2 is, for example, a key telephone having an automatic answering function. With this function, for example, when an incoming call is received from a station line, the station line can be answered by simply off-hooking the handset without pressing the station line button. You can

The terminal 2 has a terminal control CPU 20 and a detection circuit 22 that detects the usage state of the terminal 2. The CPU 20 has a port E to which the control line 4 is connected.
And the control signals described above are exchanged. Also CPU20
Has a reset terminal 24 connected to the power supply line 3. Then, when power is supplied to the terminal 24, the CPU 20 performs an initial setting by a power-on reset and operates. Further, the CPU 20 is connected to the detection circuit 22 via the signal line 28.

The detection circuit 22 is a circuit that detects a usage state such as disconnection of the handset when the terminal 2 for which the automatic response function is set is started up. The detection circuit 22 normally biases the output 28 to, for example, the H level, and when detecting the use state, it sets the level of the output 28 to the L level to notify the CPU 20 of the use state. Further, the detection circuit 22 has a power supply terminal 26, is connected to the power supply line 3 through this terminal, and detects the usage state of the terminal 2 when power is supplied from the power supply line 3.

Although the control line 4 and the power supply line 3 are shown separately in the figure, these lines may be physically the same line. Further, in the figure, only the elements related to the automatic response terminal startup method according to the present invention are described, and those not directly related are not described. Further, power is supplied from the power supply line 3 to these elements not shown.

FIG. 2 shows a startup flow of the terminal 2 to which the automatic response function is set according to this embodiment. The startup operation of the terminal 2 will be described with reference to FIG.

When power is supplied from the power supply line 3 to the reset terminal 24 of the CPU 20 (200), the CPU 20 is power-on reset and is initialized (202). The power from the power supply line 3 is also supplied to the power supply terminal 26 of the detection circuit 22. Therefore, the detection circuit
22 operates to detect the use state of the terminal 2 and inform the CPU 20 of a signal in use or unused. That is, the detection circuit 22 sets the output 28 to the L level when the handset is disconnected, and sets the output 28 to the H level when the terminal 2 is in the unused state such as the handset removed. The CPU 20 transmits the TCL signal to the control line 4 when the port F is at the H level, and monitors the port F when the port F is at the L level until it changes to the H level (204, 204). CPU20 is TCL
When the signal is transmitted, the online command waiting state 208 from the main unit 1 is set.

For example, the call connection sequence of the automatic response terminal startup method will be described with reference to FIG. In the figure, the main device 1
Is connected to a PBX as a higher-level station or a central office switch of a public telephone network.

When the control unit of the main unit 1 instructs the main unit side CPU 10 to start up the terminal 2, the CPU 10 outputs the output of port C 100
Causes the switch 14 to operate. Therefore, power is supplied from the power source 12 to the power supply line 3 (30). As described in FIG. 2, when power is supplied to the power supply line 3, the CPU 20 on the terminal side
And the detection circuit 22 operates, but when the handset is disconnected, the port F does not become H level, so the TCL
Do not send a signal. Therefore, the main device 1 also does not transmit the online command to the terminal 2, and the main device 1 and the terminal 2 are not connected in terms of processing. Therefore, even if there is an incoming call to the main unit 1 from the central office (32), the terminal 2 can
Never send an off-hook command to.

If the handset of the terminal 2 is on-hook or is on-hook, the terminal 2 transmits a TCL signal to the main device 1 (34). When the main device 1 receives the TCL signal, it sends an online command to the terminal 1 to bring the terminal 2 online (36). When the main unit 1 receives an incoming call from the central office after the online state (38), a lamp, such as a central line lamp, for notifying that there is an incoming call from the central line is turned on. Since the terminal 2 has an automatic response function, it is possible to send an off-hook command to the main device 1 simply by raising the handset (40). When the main device 1 receives the off-hook command, it acquires the office line or responds to the office line (42, 44), and connects the office line and the terminal 2. This allows the terminal 2 to talk to the central office line (46).

FIG. 4 shows a functional block diagram of a conventional automatic response terminal starting method. As shown in the figure, the terminal 5 does not have the detection circuit 22. Therefore, when the terminal 5 is started up, for example, the CPU 20 cannot judge whether or not the handset is detached.

Further, FIG. 5 shows an example of the connection sequence of FIG. As shown in the figure, when the power is supplied to the terminal 5 and the CPU 20 is power-on reset, the TCL signal is sent from the terminal 5 to the main unit 1 even if the handset is disconnected because the detection circuit 22 is not provided. Is transmitted (34). Therefore, the main device 1 sends an online command to the terminal 5 to enter the online state. Therefore, when an incoming call is received from the central office after sending the online command (32), the terminal 5 sends an off-hook command to the main unit 1 because the handset is detached (40). When the main unit 1 receives the off-hook command, it acquires the office line or responds to the office line to connect the office line to the terminal 5 (42, 44, 46). In this way, the station line is actually connected to the terminal 5 having no responder.

On the other hand, in this embodiment, even if power is supplied from the main unit 1 when the terminal 2 is started up, the terminal side CPU 20 sends the TCL signal to the main unit 1 unless the port F becomes H level by the detection circuit 22. There is no such thing. That is, for example, in the case of use such as detaching the handset, the TCL signal is not transmitted to the main unit 1 and the main unit 1 and the terminal 2 are not brought into the online state. Therefore, at this time, the terminal 2 does not send the off-hook command to the main unit 1 even if there is an incoming call from the station line, so that the terminal 2 is not connected to the station line.

(Effect of the invention) As described above, according to the present invention, when the terminal to which the automatic response function is set is started up, the detecting means of the terminal detects the on-hook state or the off-hook state of the terminal itself,
When the terminal is in use, the control means of the terminal does not send the start signal to the main unit, but sends the start signal only when the terminal is in the unused state. Therefore, when the terminal is in the off-hook state in the state where the automatic response function is set in the terminal, it is possible to reliably prevent invalid capture or invalid response of the station line by this device.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing an embodiment of an automatic response terminal start-up system according to the present invention, FIG. 2 is a flow chart showing the start-up operation of the terminal shown in FIG. 1, and FIG. FIG. 1 is a sequence diagram showing an example of call connection operation in the start-up method, FIG. 4 is a functional block diagram showing a conventional automatic response terminal start-up method, and FIG. 5 is a call connection in the conventional method of FIG. 6 is a sequence diagram showing an operation example of FIG. Description of main part code 1 …… Button telephone main unit 2 …… Terminal 10 …… Main unit side CPU 12 …… Power supply 14 …… Switch 20 …… Terminal side CPU 26 …… Detection circuit

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hidetake Oyama 4-11-22 Shibaura, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. 1 Annex Oki Communication Systems Co., Ltd. (72) Inventor Hiroyuki Yoneaga Port of Tokyo 4-11-22 Shibaura-ku, Oki Electric Industry Co., Ltd. Annex 1, Oki Communication Systems Co., Ltd. (56) References JP-A-56-169988 (JP, A) JP-A-62-189856 (JP, A)

Claims (2)

[Claims] 1. A key telephone device including a terminal connected to a call in an off-hook state and capable of setting an automatic answering function, and a main device for controlling the terminal, wherein the main device controls the terminal. First control means for
A power supply unit for supplying power to the terminal under the control of the first control unit, wherein the terminal detects an on-hook state and an off-hook state of the terminal itself when supplied with power from the power supply unit in an automatic response setting state. State detection means for determining whether the device is in a used state or an unused state, and when the power is supplied from the power source means of the main device in the automatic response setting state, the state is detected and the state is detected. Second control means for sending a predetermined activation signal to the first control means of the main device when the detection result from the means is in a use state, the first control means of the main device, A key telephone device, which is connected to the terminal in an online state when receiving a start signal from the second control means of the terminal. 2. An automatic answering terminal start-up method of a key telephone device, wherein a terminal capable of setting an automatic answering function, which is connected to a call in an off-hook state, is housed in a main device for controlling the terminal, the method comprising: When an automatic response function is set for the main device in the terminal and a command to start the terminal is issued to the main device in the automatic response setting state, the main device supplies power to the terminal, When power is supplied, after initial setting, the terminal detects the on-hook state or off-hook state of the terminal itself to determine whether the device is in use or not used. Sends a predetermined start signal to the main device, and if the detection result is the use condition, it does not send the start signal and monitors itself until it is in the unused condition, and the main device starts from the terminal. Received a signal Only if, the terminal and the automatic answering terminal startup method characterized by the online captures the incoming call from line to call connection to the terminal.