JP2697855B2 - Telephone equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone device having a conference call function with a plurality of outside lines.

[Conventional technology]

2. Description of the Related Art Conventionally, in a device of this type, when a certain external line is disconnected during a conference call with a plurality of external lines, the detection of a reverse (polarity reversal) or the detection of a signal tone (such as a busy tone) from an exchange causes the relevant external line to be disconnected. Circuit is open.

[Problems to be solved by the invention]

However, in the above conventional example, in the case of detection by reverse (polarity reversal), incoming connection or private branch exchange (PB
There is a case where there is no reverse such as the extension connection of X). In addition, in the case of detection using a signal tone from the exchange, the signal tone cannot be fixed to one type such as an extension connection of the PBX, so that when a certain external line is disconnected, disconnection cannot be detected.

Therefore, there is a problem in that a signal from the exchange prevents communication with other external lines.

[Means for solving the problem]

According to the present invention, a connection means for connecting or disconnecting a plurality of lines, a communication path means for connecting or disconnecting a communication path with the plurality of lines, and the plurality of lines during a conference call using the plurality of lines. A means for selecting one of the lines, and a method for not transmitting voice from the line while maintaining the connection of the line selected by the selection means by the connecting means in response to a first operation by the user. Disconnecting means for disconnecting the communication path of the line by the communication path means, and in response to a second operation by the user, disconnection of the communication path of the communication path or the other of the lines selected by the selection means Open means for releasing the connection by the connection means, and when the connection of the line is released by the release means, a call state is established via a line other than the released line.

First Embodiment FIG. 1 is a configuration diagram showing an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a main unit of the key telephone apparatus, 2 denotes a control unit for controlling the main unit, 3 denotes a communication path switch for connecting and disconnecting a communication path between an external line and an internal line, and 4 denotes an internal telephone. Reference numeral 5 denotes an interface for connecting and disconnecting an external line, and 6 denotes an external line. Reference numeral 7 denotes a telephone connected to an extension, and reference numeral 8 denotes an outside line button for selecting an outside line.

In the above configuration, when the telephone 2 is in a conference call state between the first outside line 6-1 and the second outside line 6-2 (the connection state at this time is shown in FIG. 2), The operational flowchart is shown in FIG.

First, the first button press is monitored in steps S1 and S3. When the control unit 2 detects that the first outside line button 8-1 of the telephone 7 is pressed by the user,
The process proceeds from step S1 to step S2, in which only the communication path of the first outside line 6-1 is disconnected (the outside line 6-1 is connected to the outside line interface unit 5 so that the outside line 6-1 can be put back into the communication state in S8).
Connected with). Therefore, the voice or signal tone from the first outside line 6-1 is not transmitted to the telephone 7. This state is shown in FIG.

When the second outside line button 8-2 is pressed, the control unit 2 moves from step S3 to step S4 and disconnects only the communication path of the second outside line 6-2 (the outside line 6-2 is The voice or signal tone from the second external line 6-2 is not transmitted to the telephone 7 so that the telephone can be switched to the call state again at S6 (while still connected by the external line interface unit 5). This state is the third
Shown in the figure.

Next, the control unit 2 monitors the pressing of the second button at steps S5 and S7, and when detecting that the first outside line button 8-1 has been pressed, proceeds to step S6, where the first outside line is pressed. The connection of the outside line interface 5 of 6-1 is released, and the second
And the telephone 7 are connected. This state is the sixth
Shown in the figure. If it is detected that the second outside line button 8-2 has been pressed, the process proceeds to step S8, where the second outside line 6--2 is pressed.
Then, the connection of the external line interface 5 is released, and the first external line 6-1 and the telephone 7 are connected. This state is shown in FIG.

Thus, in the present embodiment, steps S1 and S3
When the user designates a communication path to be disconnected while maintaining the connection of the external line interface section 5, the control section 2 disconnects the specified communication path. If the user specifies an external line to be disconnected from the external interface unit 5 in steps S5 and S7, the control unit 2 releases the specified external line.

Therefore, even if the control unit 2 cannot detect the disconnection of the outside line, the user can specify the outside line to be opened to prevent the call from being interrupted by the signal sound (busy tone or the like) due to the disconnection. it can.

In the above embodiment, one external line is disconnected from a conference call between two external lines and three parties. However, a plurality of external lines may be provided.

Second Embodiment The configuration diagram of the present embodiment is the same as the configuration of the first embodiment shown in FIG. 1, and a description thereof will be omitted. FIG. 8 shows an operation flowchart of the control unit 2.

In FIG. 8, steps S11 to S14 are the same as steps S1 to S4 in FIG. 7, and a detailed description thereof will be omitted. In step S12, after disconnecting the communication path of the outside line 1, the control section 2 monitors the pressing of the next button in steps S15 and S17. When it is detected that the outside line button 1 has been pressed by the user, the process proceeds to step S16, and the outside line 1 is released. When it is detected that the outside line button 2 has been pressed, the process proceeds to step S14.

Steps S18 to S20 are the same operations as steps S15 to S17, and a description thereof will be omitted.

Thus, in the present embodiment, when the user presses the outside line button corresponding to the outside line to be released twice, the outside line is released. That is, when the user presses the outside line button corresponding to the already cut outside line, the control unit 2 releases the outside line.

Therefore, even if the control unit 2 cannot detect the disconnection of the outside line, the user can specify the outside line to be opened to prevent the call from being interrupted by the signal sound (busy tone or the like) due to the disconnection. it can.

〔The invention's effect〕

As described above, according to the present invention, according to the first operation by the user, while maintaining the connection of the selected line, the communication path of the line is controlled so that voice from the line is not transmitted. Before disconnecting the line to be disconnected by selecting the line to be disconnected by disconnecting the line and disconnecting the selected line according to the second operation by the user. There is an effect that the user can confirm whether it is OK to cancel the voice from and release the connection of the line.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment according to the present invention, and FIGS.
FIG. 7 is a connection diagram between a telephone and an outside line in the present embodiment, and FIGS. 7 and 8 are operation flowcharts of the control unit of the embodiment. 1 is a main unit, 2 is a control unit, 6 is an outside line, 7 is a telephone, and 8 is an outside line button.

Claims (1)

(57) [Claims] 1. A connection means for connecting or disconnecting a plurality of lines, a communication path means for connecting or disconnecting a communication path with the plurality of lines, and the plurality of lines during a conference call using the plurality of lines. Selecting means for selecting one of the following, and in accordance with a first operation by the user, so that voice from the line is not transmitted while the connection of the line selected by the selecting means is maintained by the connecting means. Disconnecting means for disconnecting the communication path of the line by the communication path means; and, in response to a second operation by a user, the disconnection of the communication path or the other of the lines selected by the selection means An opening means for opening a connection by the connecting means, wherein when the connection of the line is opened by the opening means, a telephone communication state is established via a line other than the opened line.