JPS62225093A - Key telephone equipment - Google Patents

Abstract

PURPOSE:To attain talking without contacting a telephone set with loudspeaker functions by providing a key telephone set and a telephone set with loudspeaker functions to a talking terminal and bringing the telephone set with loudspeaker functions to the off-hook state in response to the call operation of the key telephone set. CONSTITUTION:The key telephone set 11 has a key telephone set 20 and a telephone set 30 with loudspeaker functions at the talking terminal and applies switching control between an extension and a trunk line 10 corresponding to the operation of each talking terminal. A terminal control circuit 23 sends a control signal to a control circuit 13 by the special buttoon operation of the telephone set 20, the circuit 13 receives it to close the circuit 23 to the positon of an extension circuit 14 and sends the control signal to a terminal control circuit 31. The circuit 31 reeives it, controls the telephone set 30 in the off-hook state to send an answes signal to the circuit 13. The circuit 13 receives it to clock a cross point 33 to the position of the circuit 14 to connect the talking circuits 22 and 32. Thus, the operator of the telephone set 30 can answes the call of the telephone set 20 as it is without contacting the telephone set 30.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a button telephone device having a button telephone and a telephone with a loudspeaker function as a telephone terminal.

(Prior Art) Conventionally, as this type of button telephone device, there is one as shown in the block diagram of FIG. 2, for example.

In FIG. 2, when the key telephone device 11 receives an incoming call from the central office line 10, the incoming call detection circuit 12 detects the incoming call and notifies the control circuit 13 of the incoming call. When the control circuit 13 receives the notification of the incoming call, it displays the incoming call on the button telephone 2o and the telephone with a loudspeaker function (hereinafter referred to as a speakerphone) 30 via the respective terminal control circuits 21 and 31. When the key telephone 20 responds here, the terminal control circuit 21 sends a response signal to the control circuit 13, and upon receiving the response signal, the control circuit 13 switches and controls the cross point 23 to close it to the central office line 10 side. 10 and the communication circuit 22 are connected. Thereby, the button telephone 20 communicates with an external terminal via the central office line 10. After that, when the speakerphone 30 is added to the call and a conference is to be held, the terminal control circuit 21 sends a control signal to the control circuit 13 by pressing a button on the key telephone 20, and when the control circuit 13 receives this control signal, it is put on hold. The sound output path 15 is controlled to send the hold tone to the central office line 10, and the crosspoint 23 is also controlled to close to the extension circuit 14 side, and the extension circuit 14 is turned on to transmit the hold tone to the speakerphone 30 via the crosspoint 33. call. When the speakerphone 30 responds to this call by operating a button, the terminal control circuit 31 sends a response signal to the control circuit 12, and the button telephone 20 and the speakerphone 30 enter into an extension call state. Next, in the button telephone 20, the terminal control circuit 21 sends a control signal to the control circuit 13 by another button operation, and when the control circuit 13 receives this control signal, it stops the holding tone of the holding tone sending circuit 15 and crosses the The point 23° 33 is closed to the central office line 10 side, the extension circuit 14 is turned off, and the central office line 10 and the communication circuits 21 and 31 are connected. Further, the control circuit 13 is connected to the terminal control circuit 21゜3.
1, the key telephone 20 and speakerphone 30 display that a call is in progress.
0 and speakerphone 30 can communicate with each other.

In addition, when the key telephone 20 transfers a call with the central office line 10 to the speakerphone 30, the key telephone 20 operates the buttons according to the above procedure, and the external terminal, the key telephone 20, and the speakerphone 30 are able to talk to each other. When the key telephone 20 hangs up after the call has been reached, the external terminal and the speakerphone 30 enter into a communication state via the central office line 10 and the cross point 33.

(Problems to be Solved by the Invention) As described above, in the conventional operation, when a call is received from an extension, the speakerphone requires a button operation in order to respond.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a key telephone device that allows a user to make a call from an extension without touching the speakerphone.

[Structure of the Invention] (Means for Solving the Problems) The key telephone device of the present invention is configured to respond to a call operation of the key telephone by placing the telephone with a loudspeaker function in an off-footer state to respond.

(Function) Therefore, according to the present invention, when adding a telephone with a loudspeaker function to a call, or when transferring a central office line during a call to the telephone with a loudspeaker function, the user can simply operate the button telephone. Since the telephone can be placed in an off-hook state, the operator can talk without touching the telephone with the loudspeaker function.

(Example) FIG. 1 shows a flowchart of the button telephone device of the present invention. The basic configuration of the present invention is the same as that of the conventional example shown in FIG. 2, so for convenience of explanation, it will be explained based on FIG. 2.

In Figure 2, button phone! speakerphone 3 from a20
When calling 0 and making a call using the extension, first, the terminal control circuit 23 sends a control signal to the control circuit 13 by operating a specific button on the key telephone 20. When the control circuit 13 receives this control signal, it closes the cross point 23 to the extension circuit 14 side, turns on the extension, and sends a control signal to the terminal control circuit 31. Terminal control circuit 31 receives this control signal, controls speakerphone 30 to be in an off-hook state, and sends a response signal to control circuit 13 . Next, when the control circuit 13 receives this response signal,
The cross point 33 is closed to the extension circuit engineer 4 side, and the communication circuit 22 and the communication circuit 32 are connected. Therefore, in response to a call from the key telephone 20, the operator of the speakerphone 30 can answer the call without touching the speakerphone 30 by simply speaking. In response to the control signal from the control circuit 13, the terminal control circuit 31 sends out a response signal indicating that the speakerphone 30 is in communication with another telephone.

Next, a case in which the speakerphone 30 is added to a call between an external telephone and the key telephone 20, or a case in which the central office line during a call is transferred to the speakerphone 30 will be described using the flowchart shown in FIG.

First, when there is an incoming call from the central office line 10, the incoming call detection circuit 12 notifies the control circuit 13 of the incoming call, and the control circuit 13 sends the key telephone 20 and the speakerphone 3ot=-i=receiver via each terminal control circuit 21.31. Display. In response to an incoming call, it is determined in steps 101 and 102 whether the call should be made using the button telephone 20 or the speakerphone 30. Here, for example, when the button telephone 20 performs a button operation to make a call, the terminal control circuit 21 sends a response signal to the control circuit 13. Upon receiving this response signal, the control circuit 13 closes the cross point 23 to the central office line 10 side, allowing the key telephone 20 to communicate with an external telephone via the central office line 10, and proceeds to step 103.

Further, when the speakerphone 30 performs a button operation to make a call, the terminal control circuit 31 sends a response signal to the control circuit 13. Upon receiving this response signal, the control circuit 13 closes the cross point 33 to the central office line 10 side, enables the speakerphone 30 to communicate with an external terminal via the central office line 10, and returns to the start and waits until the next operation. .

When it is determined in step 103 that the telephone conversation is to be continued using the button telephone 20, the process proceeds to step 104, where the telephone conversation using the button telephone 20 is continued, and the process returns to Star i and waits until the next operation.

Next, if you want to add the speakerphone 30 to the call during a call and hold a conference, or use the speakerphone 30 to connect the telephone to the central office line 10.
If the hold tone is to be transferred to the central office line 10, the process proceeds to step 105, in which the control circuit 13 controls the hold tone output path 15 to transmit the hold tone to the central office line 10 and transfers the cross point 23 to the extension circuit 14 by operating the button on the button telephone 20. close it to the side,
The extension circuit 14 is turned on and a control signal is sent to the terminal control circuit 31. When the terminal control circuit 31 receives this control signal, it determines in step 10B whether the speakerphone 30 is in a state where it can talk, that is, it is in a conversation with another telephone. When the speaker phone 30 is in use, the terminal control circuit 31 sends a response signal indicating that the call is in progress to the key telephone 20 via the control circuit 13. When the button telephone 20 receives this signal, it makes a call to the office line 10 again in step 104, returns to the start, and waits until the next operation.

Further, when the speakerphone 30 is in a state where a call can be made in step 106, the terminal control circuit 31 puts the speakerphone 30 into an off-hook state and sends a response signal to the control circuit 13 indicating that a call is possible.

When the control circuit 13 receives this response signal, it closes the cross point 33 to the extension circuit 14 side, and connects the communication circuit 22 and the communication circuit 32. This allows button phone 2
0 and speakerphone 3.0 can be used for internal calls. Next, in step 107, the terminal control circuit 21 sends a control signal to the control circuit 13 by operating a specific button on the key telephone 20. When the control circuit 13 receives this control signal, it stops sending out the hold tone and also closes the cross point 23°3.
3 to the central office line 1 (L side), the extension circuit 14 is turned off, and the central office line 10 and the telephone call circuits 22 and 32 are connected.
0 can communicate with each other via the central office line 10, and can hold a conference (step 108). In addition, when transferring a call to the central office line 10 to the speakerphone 30, after performing the operation in step 107 described above, the button telephone 20
When the call ends, the central office line IO is connected to the telephone communication circuit 32, and it is possible to communicate with an external terminal on the speakerphone 30 without operating any buttons.

When the call ends in step 109, the operation of the button telephone device 11 returns to the start and waits until the next operation.

[Effects of the Invention] As explained above, according to the present invention, in response to a call operation of a button telephone, the telephone with the loudspeaker function goes off-hook and responds, so that a call can be made without touching the telephone with the loudspeaker function. be able to.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of a flowchart of the button telephone device of the present invention, and FIG. 2 is a block diagram showing the configuration of the button telephone device. 10... Office line, 11... Button telephone device, 13...
・Control circuit, 20...button telephone, 22.32...
・Telephone circuit, 21.31...terminal control circuit, 30...
・Telephone with loudspeaker function (speakerphone).

Claims (2)

[Claims] (1) In a button telephone device that has a button telephone and a telephone with a loudspeaker function as call terminals, and controls switching between an extension line and a central office line in response to operations on each call terminal, A button telephone device characterized by comprising a means for placing a telephone with a loudspeaker function in an off-hook state to make a response. (2) When adding a telephone with a loudspeaker function to a call, or when transferring a central office line during a call to a telephone with a loudspeaker function, the means is to put the telephone with a loudspeaker function into an off-hook state simply by operating the button telephone. The button telephone device according to claim 1, wherein the telephone with the loudspeaker function and the central office line are connected to each other when the telephone is answered.