JP3231928B2 - Key telephone equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an outside line during the off-hook
The present invention relates to a key telephone device having a capturing function .

[0002]

2. Description of the Related Art Conventionally, there has been known a key telephone apparatus having a function of automatically selecting one of a plurality of available outside lines and capturing an outside line when an off-hook call is made. In this type of apparatus, the search order is fixed, for example, searching for an outside line from an outside line.

[0003]

However, in the above-mentioned conventional example, since an empty line is always searched for from the same outside line at the time of off-hook transmission, the case where the PBX extension and the outside line are mixedly accommodated or the outside line which can make the international transmission is partially excluded. If it is necessary to temporarily make a call several times continuously from a specific outside line when it is accommodated, the outside line button must be pressed each time to catch the specific outside line. There was a problem that operation was troublesome.

The present invention captures an outside line when off-hook.
In a key telephone device, the outside
If you want to use an outside line that is different from the line, press the outside line button.
Down to select another line to seize.
At the next off-hook, the selected line is
It is an object of the present invention to provide a key telephone device that can be captured .

[0005]

SUMMARY OF THE INVENTION The present invention is directed to an off-hook mode.
External telephone is being captured by a key telephone device
When the outside line button is pressed, the pressed outside line button
Storage means for storing the outside line corresponding to the
When the outside line button is pressed during capture,
The outside line corresponding to the outside line button is stored in the storage means.
To release the currently captured outside line, and press the pressed outside line button.
The outside line corresponding to the tongue, while being off-hook
And an external line for capturing the external line stored in the storage means.
This is a key telephone device provided with control means.

[0006]

FIG. 1 is a block diagram showing the configuration of a key telephone apparatus according to an embodiment of the present invention.

A main unit 1 of the key telephone apparatus includes a control unit 2 for controlling the entire main unit, a memory 3 for storing the state of telephones and external lines, and a speech network 4 for connecting external and internal communication paths. , An outside line interface 5 for capturing an outside line 6 and sending out a dial, and an extension line interface 7 for detecting off-hook of the telephone 8 and pressing of each button.

The telephone 8 includes a handset 9, an outside line button 10 for selecting an outside line, and a speaker button 1.
1 and dial buttons 12 and the like.

FIG. 2 is a flowchart showing the operation of the control unit 2 in the present embodiment.

First, when the off-hook of the telephone 8 is detected via the extension interface 7 (S201), the memory 3
An external line number indicating that a call was made by pressing the external line button of the corresponding telephone during Is determined (S202), and if it is stored, it is determined whether the corresponding outside line is free (S203).

In step S202, the outside line No. If you don't remember
If the corresponding outside line is not empty in S203 and S203, as in the prior art, for example, an empty line is searched for from the oldest outside line (S2).
04 to S207), if all external lines are used, a busy process for notifying the telephone 8 via the extension interface 7 is performed (S208).

In S203 and S205, when the corresponding outside line is free, the outside line interface 5 is controlled to capture the outside line, and the speech network 4 is controlled to change the communication path from the outside line 6 to the telephone 8. The connection is established, and the outside line button 10 of the outside line captured by the telephone 8 via the extension interface 7 is turned on (S209).

Next, when the press of the outside line button 10 of the telephone 8 is detected via the extension interface 7 (S21).
0), only when the corresponding outside line is free (S211),
The outside line No. Is stored in the memory 3, the external line interface 5 is controlled to release the currently acquired external line, the external line button 10 of the telephone 8 is turned off via the internal line interface 7 (S212), and the pressed external line button 10 (S209).

When the press of the dial button 12 of the telephone 8 is detected via the extension interface 7 (S21).
3) Controlling the external line interface 5 to perform dial transmission (S214).

Further, when a response from the other party is detected via the external line interface 5 (S215), the speech network is controlled to enable a telephone call between the external line 6 and the telephone 8 (S216).

In the above embodiment, the outside line button 10
Is detected after the off-hook detection, but without waiting for the off-hook, the press of the outside line button 10 is detected,
Outside line No. May be stored.

Alternatively, on-hook may be performed without pressing the outside line button 10 to perform dial input.

[0018]

According to the present invention, an outside line can be connected when off-hook.
Capturing at the time of off-hook in the key telephone device to be captured
If you want to use an outside line that is different from the
Button to select and capture another line.
The next time you go off-hook,
There is an effect that the line can be seized.

[Brief description of the drawings]

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

FIG. 2 is a flowchart showing the operation of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Main apparatus, 2 ... Control part, 3 ... Memory, 4 ... Speech network, 5 ... External line interface, 6 ... External line, 7 ... Internal line interface, 8 ... Telephone, 9 ... Handset, 10 ... External line button, 11 ... Speaker button , 12 ... dial buttons.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04Q 3/58 107

Claims (1)

(57) [Claims] 1. A Rubo Tan telephone device to capture the outside line during off-hook, in the external line captured, the external line button is pressed, this pressing is
Storage means for storing an outside line corresponding to the selected outside line button; when the outside line button is pressed during outside line capture,
The external line corresponding to the released external line button is recorded in the storage means.
Remember, release the currently captured outside line, and press the outside
Captures the outside line corresponding to the line button while going off-hook
Captures the outside line stored in the storage means
Key telephone system characterized by having a; and external control means.