JPH0530210A - Isdn compatible pushbutton telephone set - Google Patents

Abstract

PURPOSE:To call a pushbutton telephone set having made a call to a destination of a caller number in the past with priority at the arrival of a call. CONSTITUTION:When a pushbutton telephone set, e.g. 61 makes dialing, a control section 2 a telephone number of the dialed destination and an extension number of the pushbutton telephone set 61 in pairs to a destination recording section 3. When a call comes to, e.g. an ISDN line L1, the control section 2 sequentially checks whether the caller number informed from the ISDN line L1 and the extension number of the pushbutton telephone set having made a call to the caller number in the past are recorded in the caller destination recording section 3, and when it is discriminated that they are recorded as the result of check, the control section 2 stores the caller number and the extension number in pairs to the destination designation memory 4 and calls the pushbutton telephone set having the extension number.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ISDN-compatible button telephone device, and more particularly to an incoming call designation for designating a button telephone at the time of an incoming call in the ISDN-compatible button telephone device.

[0002]

2. Description of the Related Art Conventionally, in this kind of ISDN-compatible button telephone device, an incoming call can be set for each button telephone on a line-by-line basis, but an incoming call cannot be designated for an incoming call from a specific party. However, the calling party number notified from the ISDN line is displayed on the display portion of the key telephone, and the user of each key telephone determines whether or not to respond by looking at the display.

[0003]

DISCLOSURE OF THE INVENTION The conventional ISD described above
Since the N-compatible button telephone device has an incoming call setting for each button telephone on a line basis for incoming calls, it is not possible to specify the destination of incoming calls from a specific party. There is a high possibility that a person who does not need to make a call will respond to an incoming call from the other party, and if the user of the key telephone system judges an incoming call from a specific party, the ISDN line will notify each incoming call. There is a drawback that it is necessary to judge by looking at the display of the calling party number.

[0004]

The ISDN-compatible button telephone device of the present invention is a button telephone device having a main device for accommodating a plurality of ISDN lines and a plurality of button telephones, wherein the main device accommodates the button telephone. From above I
A destination recording unit that records the telephone number of the other party who made the call to the SDN line and the extension number of the button telephone that made the call, and the caller notified from the ISDN line when receiving a call A pair of a number and the extension number of the key telephone that has made a call for the incoming call is paired, and when the same pair as this pair is recorded in the destination recording unit, a destination designated memory for registering the pair is provided. And the ISD
A button telephone having an extension number paired with the same number when the same number as the caller number notified from the ISDN line when an incoming call is made from the N line is registered in the destination designated memory Has a calling means for calling.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing an example of the recording structure of a destination recording unit in this embodiment, and FIG. 3 is a memory of a destination designation memory in this embodiment. It is a figure which shows an example of a structure.

[0007] In FIG. 1, the key telephone apparatus of this embodiment and the key telephone 6 ₁ to 6 _m, the key telephone set 6 ₁ to 6 _m
And a main device 7 accommodating the ISDN lines L _{1 to} L _n . The main device 7 is connected to the ISDN lines L _{1 to} L _n , ISDN line interfaces 1 ₁ to 1 _n , and key telephones 6 _{1 to} 6 _m . Button telephone interfaces 5 _{1 to} 5 _m for interfacing, a destination recording unit 3 for recording the telephone number of the calling party and the extension number of the calling button telephone as a pair, and an ISDN for receiving the incoming call.
If the calling party number notified from the line and the extension number of the key telephone that made the call for the incoming call are paired and the same pair as this pair is recorded in the destination recording unit 3, this pair is recorded. It has a destination designation memory 4 to be registered and a control unit 2 for controlling the main device 7 as a whole.

Next, the operation of this embodiment will be described with reference to FIGS. 1, 2 and 3.

[0009] For example, when a key telephone set ₆₁ of extension 1 has performed a call, the telephone number of the destination control unit 2 that has transmitted, key telephone set ₆₁ of extension that made the outgoing 1
And are paired and recorded in the destination recording unit 3.

Next, there is an incoming call on the ISDN line L ₁ , and I
To determine whether or not the same pair as the pair of the calling party number notified from the SDN line L ₁ and the extension number of the key telephone that has made a call in the past with this calling party number is recorded in the destination recording unit 3. In addition, the control unit 2 performs the following operations.

The control unit 2 sequentially searches from the beginning of the transmission destination recording unit 3 to check whether the same number as the incoming caller number is recorded, and it is further recorded as a pair with the caller number. You can check whether the extension number you are using matches the extension number of the key telephone that has called this incoming caller number in the past.

When the extension numbers of both parties match, the control section 2 records the calling party number currently received and this extension number in the destination designation memory 4 as a pair, and also the button of this extension number. Controls to call the telephone.

Thereafter, each time there is an incoming call from the ISDN line L _{1 to} L _n , the control unit 2 records the same calling party number as the caller number notified from the incoming ISDN line in the destination designation memory 4. Whether or not the call has been made is sequentially searched from the beginning of the destination memory 4, and the key telephone having the extension number recorded as a pair with the calling number is given priority to call.

[0014]

As described above, according to the present invention, a plurality of I
In a key telephone device provided with a main unit accommodating an SDN line and a plurality of key telephones, when the key telephone accommodated by the main unit makes a call to an ISDN line, the telephone number of the other party and the key telephone making the call The destination recording unit that records the extension number of
Pair the calling party number notified from the SDN line with the extension number of the key telephone that made the call in the incoming call,
If the same pair as this pair is recorded in the destination recording section,
An ISDN having a destination designation memory for registering a pair, and
A calling means for calling a button telephone having an extension number paired with the same number when the same number as the caller number notified from the ISDN line is registered in the destination memory when an incoming call is received from the line By having the above, it is possible to preferentially call the calling party number and the key telephone that has called and responded in the past when receiving a call.

[Brief description of drawings]

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

FIG. 2 is a diagram showing an example of a recording structure of a destination recording unit in the present embodiment.

FIG. 3 is a diagram showing an example of a recording structure of a destination designation memory in the present embodiment.

[Explanation of symbols]

L _{1 to} L _n ISDN line 1 ₁ to 1 _n ISDN line interface 2 control unit 3 callee recording unit 4 callee designation memory 5 _{1 to} 5 _m button telephone interface 6 _{1 to} 6 _m button telephone 7 main device

Claims (1)

Claim: What is claimed is: 1. A key telephone device comprising a main unit for accommodating a plurality of ISDN lines and a plurality of key telephones, wherein the main unit is connected to said I
A destination recording unit that records the telephone number of the other party who made the call to the SDN line and the extension number of the button telephone that made the call, and the caller notified from the ISDN line when receiving a call A pair of a number and the extension number of the key telephone that has made a call for the incoming call is paired, and when the same pair as this pair is recorded in the destination recording unit, a destination designated memory for registering the pair is provided. And the ISD
A button telephone having an extension number paired with the same number when the same number as the caller number notified from the ISDN line when an incoming call is made from the N line is registered in the destination designated memory An ISDN-compatible button telephone device having a calling means for calling the.