JPH0530566A - Home telephone exchange system - Google Patents

Abstract

PURPOSE:To provide a telephone exchange with a speaking function. CONSTITUTION:Plural telephone plug sockets B are connected to a telephone exchange A connected to a line wire L1 through an extension L2 and a control line L3. Each telephone set C is attachably/detachably connected to each telephone plug socket B. An intercom D is connected to the telephone exchange A through a speaking line L4. The exchange A switches a channel and allows the telephone set C to execute line wire service, extension service and intercom service. The exchange A allows the execution of various calls and the display of speaking through the plug socket B. A function part to be a telephone set C and a function part to be a telephone plug socket B are unitedly integrated in the exchange A. The extension L2 and the control line L3 corresponding to one plug socket B are connected to respective function parts in the exchange A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a home telephone exchange system capable of making an outside call, an extension call and a doorphone call using a commercially available telephone.

[0002]

2. Description of the Related Art As a domestic telephone exchange system, a telephone exchange to which an external line which is a public telephone line is connected, and an extension line as a line and a control line as a signal transmission line are connected to the telephone exchange. Multiple telephone outlets,
A commercially available telephone that is detachably connected to the telephone outlet and an intercom connected to the telephone exchange through a call line are provided, and the telephone exchange connects an external line and an extension line, between extension lines, or between an extension line and a call line. There is a system in which a call path between them is formed so that a telephone can perform an outside call, an extension call, and a doorphone call, and various calls and call displays can be performed at a telephone outlet through a control line.

[0003]

By the way, the conventional exchanges of the home telephone exchange system of this kind are merely formed by switching the call path between the outside line and the extension line, between the extension lines, or between the extension line and the communication line. Was used. However, it may be preferable in terms of construction and usability if this telephone exchange also has a call function.

The present invention has been made in view of the above points, and an object of the present invention is to provide a home telephone exchange system in which a telephone exchange can have a call function.

[0005]

In order to achieve the above-mentioned object, the present invention incorporates a functional section as a telephone and a functional section as a telephone outlet in a telephone exchange, and corresponds to one telephone outlet. The extension line and the control line are connected to the function unit as a telephone and the function unit as a telephone outlet of the telephone exchange.

[0006]

The present invention has the above-mentioned configuration,
Originally, the function as one telephone connected to the telephone exchange was built into the telephone exchange so that the telephone exchange could have a call function. In addition, by incorporating a notification function unit that calls various telephone outlets and displays calls in this telephone exchange, the telephone function of the telephone exchange can be used with the same usability as a telephone connected to the original home telephone exchange system. It was made possible.

[0007]

FIG. 1 to FIG. 3 show an embodiment of the invention. Real
The home telephone exchange system of the embodiment, as shown in FIG.
Outside line L, which is a public telephone line₁Telephone exchange A connected to
And the extension L as a communication line to the telephone exchange A.₂And trust
Control line L as a signal transmission line ₃Commercially connected phones connected by
A plurality of telephone outlets B to which machine C is detachably connected
It consists of the telephone exchange A and the outside line L₁And extension L₂Ah
Rui extension L₂Switch the communication paths between the
Outgoing call and extension call by telephone C connected to St. B
Is done.

A modular jack M is provided in each telephone outlet B, and a general commercially available telephone C can be detachably connected by this modular jack M. Also,
The telephone outlet B is a speaker SP for reproducing the broadcast signal, such as the extension ring tone or intercom call sound transmitted through the control line L _3, the voltage signal transmitted through the control line L ₃ The light-emitting display unit L that discriminates the display signal that is displayed to indicate whether an internal call or an external call is being made.
a and Lb are provided, and the speaker SP and the light emitting displays La and Lb perform notification and display operations. The volume of the ringing tone can be adjusted using the volume adjustment switch VS.

In the case of this embodiment, the telephone exchange A
It is possible to connect two intercoms D to each other via a communication line L ₄ , a telephone exchange A forms a communication path between the communication line L ₄ and an extension L _2, and each intercom D and telephone C intercom. You can make calls. By the way, in the present embodiment, as shown in FIG. 2, the function part as the telephone C and the function part as the telephone outlet B are integrally incorporated in the telephone exchange A.
The extension L ₂ and the control line L ₃ corresponding to one telephone outlet B are internally connected to the functional portion as the telephone and the functional portion as the telephone outlet B of the telephone exchange A, respectively.

As a result, in this embodiment, the function as one telephone set C, which is originally connected to the telephone exchange A, can be incorporated into the telephone exchange A, and the telephone exchange A can make an outside call, an extension call and a doorphone call. You can do it. Moreover, since the function part as the telephone outlet B is incorporated in the telephone exchange A, the telephone exchange A can be used similarly to the case of the telephone C used as the original home telephone exchange system.

FIG. 2 is a view showing the external appearance of the telephone exchange A, which includes a telephone handset 30 for calling and a telephone function.
An operation unit 31 including a numeric keypad button and other function buttons, and a light emitting display element L for displaying a call state of a telephone outlet B
A display unit 32 corresponding to a and Lb and a notification unit 33 corresponding to a speaker SP that notifies various ringing sounds of the telephone outlet B are provided.

First, a home telephone exchange to which the present invention is applied.
System operation according to the configuration and operation of telephone exchange A
explain. In the telephone exchange A of this embodiment, as shown in FIG.
Extension L to which the telephone outlet B is connected₂Each time
-Contact point r₁~ R₃This relay contact r₁~ R₃so
Extension L₂And outside line L₁Disconnect the connection with the extension L₂But
Outside line L₁Extension calls or calls
Call current supply circuit 4 for call current for phone calls ₁~
Four₃Supplied from. The relay contact r₁~ R₃Is
Normal extension L₂To the outside line L₁Switched to the side to disconnect from
The outside line L₁Switched to the side.

Now, assuming that an incoming call to the outside line is detected by the incoming call detection circuit 5, the control circuit 11 composed of the CPU performs control to switch the relay contacts r _{1 to} r ₃ to the outside line L ₁ side,
The incoming call signal from the outside line L _{1 is} sent to the telephone C.
To call the outside line by ringing a bell or the like built in the telephone C. When the handset of the telephone C is picked up in response to this call, an outside line call becomes possible. By the way, on the telephone outlet B side of the relay contacts r _{1 to} r ₃ ,
The provided DP detection circuit 2 ₁ to 2 ₃ to detect the hook state of the dial signal and phone C by a dial pulse (DP) signal inputted from the telephone C, if the phone C is off-hook when the outside line call as described above In response to the output of the hook / DP detection circuit 2 corresponding to the telephone C, it is determined that the control circuit 11 is in an external line call. At this time, the display control circuit 18 sends each telephone outlet through the control line L _3. A display signal is sent to B, and the light emitting display unit La of each telephone outlet B is turned on to display an outside line call.
An amplifier AMP is inserted in the transmission path of the display signal and a notification sound signal described later to amplify the signal.

When making an outside line from the telephone C, the receiver is lifted and dialed. In the following description, a case where the telephone line contract is a dial pulse line will be described. The off-hook state of the telephone C is detected by the hook / DP detection circuit 2, and at this time, the control circuit 11 drives the signal sound generation circuit 20 to make a pseudo transmission similar to the dial tone (two tone) sent from the telephone station. Send sound to telephone C through extension L ₂ . The sending of the pseudo dial tone is stopped when the hook / DP detection circuit 2 detects the first dial signal. By the way, in this type of home telephone exchange system, telephone call processing such as extension calling is performed by inputting a specific dial signal from the telephone C. Therefore, even if the telephone C is dialed, it is considered to be an outside line call. Not limited to
There are cases where call processing such as extension calling is performed. Therefore, the control circuit 11 receiving the dial signal starts the outside line transmission operation only when the number of digits of the dial signal exceeds the number of digits of the dial signal allocated for call processing. This outside line transmission is performed by driving the DP sending circuit 6 and sending a DP signal to the outside line L ₁ via the diode bridge DB. When the other party responds to the call from the outside line, the polarity of the outside line L ₁ is inverted. Therefore, this polarity inversion is detected by the polarity inversion detection circuit 16, and then the outside line L ₁ and the telephone C that has made the outside line connection are connected. Then, the relay contact r is switched so as to connect to the extension L ₂ to enable an outside call. Also at this time, the display control circuit 18 causes the telephone outlet B to display the outside line communication. After the polarity reversal detection circuit 16 detects the polarity reversal, the external line L ₁
Both ends of the diode inserted in the terminal are short-circuited by the relay contact r ₀ to eliminate an increase in the direct current resistance as a telephone connected to the outside line L ₁ . Further, a dial tone transmitted through the outside line L ₁ , for example, a busy tone or the like is detected by the outside line dial tone detection circuit 8, and at that time, the signal line generation circuit 20 makes an extension line L to the telephone C which has made an outside line. Send busy tone through ₂ .

When making an extension call, the telephone C inputs a dial signal as in the case of making an outside call. It is to be noted that the control circuit 11 determines from the number of digits of the dial signal that this extension call is made, and at this time, the notification sound generating circuit 17 is driven to make a call through the control line L ₃ corresponding to the telephone C on the called side. A notification sound signal is sent to the outlet B, and an extension ringing sound is emitted from the speaker SP of the telephone outlet B. Then, the hook / DP detection circuit 2 detects that the called telephone C responds and is off-hook,
The control circuit 11 controls the crosspoint switch 10 to connect the extension L ₂ corresponding to the telephone C on the calling side and the extension L ₂ corresponding to the telephone C on the called side to enable extension telephone communication. To do. At this time, the display control circuit 18 causes the telephone outlet B to display the extension call state.

By the way, although the above-mentioned extension call is made to a specific telephone C, if the telephone C to be called is unspecified, a simultaneous call can be made. In this case, the dial signal corresponding to the general call is sent to the telephone C.
Input from the telephone outlets B all simultaneously ring the extension ringing tone, and when one of the telephones C is off-hook in response to the call, the detection output of the hook / DP detection circuit 2 corresponding to the telephone C is output. In response, the control circuit 11
Is the extension L ₂ corresponding to the telephone C and the calling telephone C
The extension L ₂ corresponding to is connected to enable extension communication.

Further, this home telephone exchange system is provided with a holding sound sending circuit 9 for carrying out a holding operation and sending a holding melody sound. In addition, the above-mentioned outside call can be transferred by this holding operation. When the telephone line contract is the push button line, the PB receiver 1 receives the dial signal from the push button type telephone set PB signal.
It operates in the same manner as the dial pulse line except that the PB dialer 7 sends a dial signal to the outside line L ₁ in the state in which the line is closed by the DC closing circuit 3 after being detected by 2 and 13. .. Furthermore, a power supply voltage detection circuit 19 for detecting a decrease in the power supply voltage is provided so as to deal with the case where the contents stored in the buffer inside the control circuit 11 are destroyed by the decrease in the power supply voltage.

Next, the case where the intercom is called will be described. In the case of the present embodiment, two intercoms D can be connected. The intercom calling detection circuit 14 detects that the push button of the intercom D has been pressed, and the control circuit 11 receives this detection output. Causes the alarm sound generation circuit 17 to send an alarm sound signal corresponding to a call to the intercom to each telephone outlet B, and the telephone outlet B causes the intercom ring tone to ring. When the handset of one of the telephones C is picked up in response to the calling of the intercom, the control circuit 11 switches the call line L ₄ of the calling intercom D and the extension L _{2 of the} telephone C that responds to the switch S ₁ , S. Turn on one of the _two ,
And by connecting the cross point switch 10,
Enables intercom calling. Here, the intercom communication is performed via the intercom communication circuit 15.

Although not described in detail, the telephone C also has a function of changing the place where the telephone C is put on after the call is put on hold and a transfer of an outside line call by a dial operation or a hook operation of the telephone C and a combination thereof. In addition, various services of NTT (call waiting service, triophone service, etc.) can be received in the same manner as a normal telephone.

Further, a security unit for centrally monitoring the outputs of various sensors such as fire, gas leak, crime prevention, etc. is connected by a signal line L ₅ , and an alarm signal from this security unit is received by an alarm receiving circuit 21. It also has a function of emitting an alarm sound from the speaker SP of each telephone outlet B in response to a signal. It should be noted that the telephone outlet B is capable of emitting an alarm sound that is easy to identify in accordance with each abnormality.

[0021]

As described above, according to the present invention, the function part as a telephone and the function part as a telephone outlet are integrally incorporated in the telephone exchange, and an extension line and a control line corresponding to one telephone outlet are provided in the telephone exchange. Since it is connected to the function part as a telephone and the function part as a telephone outlet, the function as one telephone that is originally connected to the telephone exchange should be built into the telephone exchange so that the telephone exchange has a call function. In addition, by incorporating a notification function unit that calls various telephone outlets and displays calls in this telephone exchange, the telephone functions of the telephone exchange can be used with the same usability as a telephone connected to the original home telephone exchange system. be able to.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of an embodiment of the present invention.

FIG. 2 is a perspective view showing an appearance of the telephone exchange of the above.

FIG. 3 is a circuit diagram of the same telephone exchange.

[Explanation of symbols]

A Telephone switchboard B Telephone outlet C Telephone D Doorphone L ₁ External line L ₂ Internal line L ₃ Control line L ₄ Call line 30 Handset 31 Operation part 32 Display part 33 Notification part

[Procedure amendment]

[Submission date] September 9, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 1

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002]

2. Description of the Related Art As home telephone switching system, via a telephone exchange outside line is connected is a public telephone line, and a control line as an extension and signal transmission lines as passing telephone line to the telephone exchange connected Multiple telephone outlets,
A commercially available telephone that is detachably connected to the telephone outlet and an intercom connected to the telephone exchange through a call line are provided, and the telephone exchange connects an external line and an extension line, between extension lines, or between an extension line and a call line. There is a system in which a call path between them is formed so that a telephone can perform an outside call, an extension call, and a doorphone call, and various calls and call displays can be performed at a telephone outlet through a control line.

Claims (1)

Claims: 1. A telephone exchange to which an external line which is a public telephone line is connected, and an extension line as a line and a control line as a signal transmission line are connected to the telephone exchange. A plurality of telephone outlets, a commercially available telephone that is detachably connected to the telephone outlets, and an intercom connected to the telephone exchange through a call line. The call path between the extension line and the call line is switched to form an outside line call, an extension line call and a doorphone call on the telephone, and the call signal and the display signal are sent to the telephone outlet through the control line, and various calls and calls are made at the telephone outlet. In a home telephone exchange system for displaying, etc., a functional unit as a telephone and a functional unit as a telephone outlet are integrally incorporated in the telephone exchange. Home telephone switching system, characterized in that the extension and control lines formed by connecting the functional part of the functional unit and the telephone outlet as telephone the telephone exchange corresponding to a telephone outlet.