JP2746901B2 - Telephone equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a telephone device for connecting a data communication device.

2. Description of the Related Art Conventionally, in a private branch exchange system, a public telephone line is accommodated, a plurality of extension telephone lines are accommodated, and a dedicated extension key telephone is connected to the extension telephone line. A system for controlling communication between public telephone lines is used.

This private branch exchange system does not use a telephone that can be directly connected to the public line network, but provides a dedicated control line in addition to the telephone line, supplies power to the telephone through this control line, and transmits various control signals. In most cases, a dedicated key telephone for sending and receiving is connected.

For this reason, it is almost impossible to accommodate a facsimile device or the like, which is a device other than the dedicated key telephone, in the private branch exchange system, and a dedicated public line must be connected to the facsimile device.

When it is absolutely necessary to connect, a general telephone interface is additionally provided in the main exchange control device (telephone control device), and a connection line such as a facsimile device is connected to the interface. Was.

The facsimile device has an attached telephone,
When a calling process is performed from a facsimile machine, the attached telephone is off-hook, a DC loop is generated in the attached telephone connection line, a call request is made to the facsimile device, and an external line connected to the attached telephone connection line and the facsimile. After that, enter the other party's telephone number from the telephone and call the other party's facsimile, and when the other party answers, press and input the "start button" of the facsimile machine to change the line from the telephone to the facsimile machine. Switched to the side for actual communication. That is, the facsimile apparatus must always be provided with an attached telephone.

However, in these configurations, a special telephone interface must be added to the telephone control device, and an auxiliary telephone must be provided.

In order to prevent this, the present applicant has disclosed in Japanese Patent Application No. 62-289151 a configuration in which a dedicated telephone and a facsimile apparatus are combined and housed in a telephone control device, and the call rotation input to the dedicated extension telephone is transmitted via a relay or the like. We have proposed a configuration in which the number of output terminals is increased and a facsimile device is connected to this output terminal.

 An example configured in this way is shown in FIG.

In FIG. 5, 1 is a subscriber telephone line (external line), 2 is a main controller, 3 is a dedicated extension telephone, 4 is a facsimile device, and 5 is a telephone attached to the facsimile device 4 which can be directly connected to the subscription telephone line. .

Reference numeral 6 denotes an extension telephone line, reference numeral 7 denotes a control line, reference numeral 8 denotes a telephone line obtained by extending the extension telephone line 6 via a relay or the like in the dedicated extension telephone 3, and reference numeral 9 denotes a connection between the facsimile machine 4 and the auxiliary telephone 5. This is a two-wire connection line.

In the above configuration, the present applicant has
It has been proposed that a facsimile communication partner is called from the telephone set 3 by using the telephone number signal transmission function and the facsimile apparatus 4 performs facsimile communication according to the following procedure.

The handset of the dedicated extension telephone is off-hook to generate a DC loop on the communication line 6 and the line 1.

The telephone number of the call destination (communication partner) is input using the telephone number button of the dedicated extension telephone, and transmitted to the line 1.

After confirming the response of the other party's facsimile machine, operate the dedicated extension telephone, and when the facsimile machine 4 forms a DC loop in the communication line 8, set the mode in which the communication lines 6 and 8 are connected to form a communication path. I do.

When the handset of the general telephone 5 is turned off and the start button of the facsimile apparatus 4 is pressed down, a DC loop is formed in the communication line 8, so that the communication lines 6 and 8 are connected, and the facsimile communication is performed. Make it possible.

Facsimile communication is performed with the responding facsimile machine.

[Problems to be Solved by the Invention] However, the configuration shown in FIG. 5 examined by the present applicant also has the following problems to be solved.

Two telephones, a dedicated extension telephone 3 and a general telephone 5, must be prepared.

After performing the switching operation with the dedicated extension telephone 3, the general telephone 5
If the handset is not off-hook, the start button and the like of the facsimile apparatus 4 will not be activated. For this reason, complicated operations cannot be avoided.

[Means for Solving the Problems] The present invention has been made for the purpose of solving the above problems, and has the following configuration as one means for solving the above problems.

That is, a telephone device that can be connected to a data communication device, a communication device connected to a communication line for making a call with a communication partner, and a terminal for connecting an attached telephone provided in the data communication device. Forming means for forming a loop on the connected first connection line, a terminal for connecting a communication partner provided in the data communication device, and the communication line connected via a second connection line, and Connection means for setting a communication partner of the means as a communication partner of the data communication device.

[Operation] In the above configuration, a loop is formed in the first connection line connected to the attached telephone connection terminal of the data communication device,
The communication partner connection terminal of the data communication device and the communication line
Can be connected via the connection line, and the communication partner can be the communication partner. Therefore, the telephone set attached to the data communication device can be substituted by the telephone device, and the operation for performing data communication by the data communication device can be performed. Can be simplified.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of one embodiment according to the present invention.
In the figure, the same components as those in FIG.

In FIG. 1, a dedicated extension telephone is used as the extension telephone.
20 and the attached telephone (general telephone) 5 of the facsimile apparatus 4 is omitted. And the facsimile machine 4
The line output terminal (T terminal) for connection with the conventional general attached telephone 5 is connected to the dedicated extension telephone 20. From the viewpoint of the facsimile apparatus 4, the configuration is almost the same as that of connecting a general telephone. Like that. Specifically, the T terminal is a two-wire line connection terminal, and when starting the facsimile machine 4, the telephone set 20 forms a DC loop on the connection line (DC loop forming line). The telephone 20 conforms to the standard interface of the main controller 2. The main controller 2 is connected to the facsimile device 4, so that no special interface device is required.

However, the facsimile device 4 used in this embodiment
Is a device that can be switched between manual transmission and automatic transmission, and in the case of manual transmission, a telephone number key is input from an attached telephone connected to the facsimile machine 4 to make a call. In this case, In this configuration, the same call processing can be performed by inputting the telephone number key of the dedicated extension telephone 20 instead of the attached telephone.

In the case of automatic calling, a direct current loop is formed in the communication line 8 to make a call request to the telephone set 20, the communication line 8 and the communication line 6 are connected, and the main control unit 2 connects the communication line 6 to the outside line. 1 and the telephone number signal and the like from the facsimile apparatus 4 may be directly transmitted to the outside line 1.

FIG. 2 shows a detailed configuration of the dedicated extension telephone 20 of this embodiment.

In FIG. 2, reference numeral 21 denotes a communication circuit, which performs impedance matching with the communication line 6 and transmits a voice signal or the like from the handset 22 onto the communication line 6, and at the same time,
The voice information is output to the handset 22. 23 outputs a calling signal to the facsimile apparatus 4 when facsimile communication is received, a calling signal generating circuit for calling the facsimile apparatus 4, and a DC supply circuit 24 and 25 for supplying DC for loop monitoring. The DC loop monitoring circuit 24 monitors the formation of a DC loop to the communication line 8 during facsimile communication including the automatic transmission of the facsimile apparatus 4, and the DC loop monitoring circuit 25 forms the DC loop by the DC loop forming circuit 26. This is a circuit for detecting that the formation of the DC loop to the line 10 has been cut by the facsimile device itself. Reference numeral 27 denotes an operation unit comprising a telephone number key, a switching key for connecting the facsimile machine 4 to the communication line 6, and the like, and reference numeral 28 denotes a key input from the operation unit 27 or a control signal from the control line 7 in accordance with a control signal. This is a control circuit that controls the entire telephone.

29 is a relay circuit for switching between connecting the communication line 6 to the communication circuit 21 (to be used as a telephone) and connecting to the facsimile apparatus 4, and 30 is a hook-up switch for detecting on-hook / off-hook of the handset 22. It is.

The facsimile transmission control of the present embodiment having the above configuration will be described below with reference to the flowchart of FIG.

First, in step S1, a document to be transmitted is set in the facsimile apparatus 4, and in step S2, the handset 22 is picked up (off-hook) and a DC loop is formed on the communication line 6. Main controller 2 detects this DC loop, determines that it is a call request from dedicated extension telephone set 20, captures the idle subscriber line (outside line), forms a DC loop, and uses the telephone network station equipment. A connection request is made to a certain switching device. When a plurality of external lines are connected to the main controller 2, one of the external lines may be selected by a line selection key of the operation unit 27 or the like. In addition,
A change in state of the telephone 20 such as off-hook may be detected by the control circuit 28 and sent to the main controller 2 via the control line 7.

Then, in step S3, the telephone number of the destination facsimile apparatus is inputted from the telephone number key of the operation unit 27.
The input information of the operation section 27 is detected by the control circuit 28 and sent to the main controller 2 via the control line 7. The main controller 2 generates a corresponding telephone number signal in accordance with the telephone number key input information sent via the control line 7 and sends it to the captured outside line 1. The various signal tones from the outside line during this series of call processing are relayed by the main controller 2 and can be heard by the handset 22 of the dedicated extension telephone 20 via the 6 communication lines.

Then, in step S4, it waits for the call destination device to respond.
Upon receiving the telephone number signal, the central office exchange selects the telephone or the connection line of the apparatus specified by the telephone number, calls the other party, and waits for the other party to answer. When the other party responds, main controller 2 uses control line 7 to notify the other party's response, and at the same time, a communication path is formed with the other party's device, and the telephone is ready for communication. As a result, the process proceeds from step S4 to step S5, in which a switching key for instructing switching of the operation unit 27 to the facsimile apparatus 4 is input. When this key is input, the control circuit 28 activates the DC loop forming circuit 26 in step S6, forms a DC loop between the T terminals, and activates the relay circuit 29 to connect the communication lines 6, 8 to form a facsimile. The start button of the device is ready to be pressed. As a result, the facsimile apparatus 4 is connected to the communication line 8 by pressing the start button of the facsimile apparatus in step S7 as a manual transmission from an attached telephone (omitted in this embodiment).

The facsimile device 4 forms a DC loop in the communication line 6 within the device, and connects the communication line 6 to the device itself. Therefore, it is checked in step S8 whether the facsimile apparatus 4 has disconnected the DC loop forming line 10 and connected to the communication line 6.
When the DC loop monitoring circuit 25 detects that the DC loop forming line 10 has been disconnected and the DC loop has been opened (the facsimile apparatus 5).
When facsimile communication starts, the process proceeds from step S8 to step S9 to deactivate the DC loop forming circuit 26.

Thereafter, necessary facsimile communication is performed. And
When the facsimile communication is completed, the facsimile device 4 releases the DC loop formed on the communication line 8 to release the line. Accordingly, the control circuit 28 waits in step S10 for the DC loop monitoring circuit 24 to detect the opening of the DC loop. When the DC loop is released and the end of communication is detected,
Proceeding to S11, the relay 29 is restored to disconnect the communication line 6 from the communication line 8, and the communication line 6 is connected to the communication circuit 21 side. In the following step S12, it is determined whether the hook switch 30 is in the off-hook state in which the hook switch 30 is in the open state (the state where the handset is placed), the state of the hook switch 30 is transmitted to the main controller 2, and the process is terminated.

The main controller 2 releases the DC loop formed on the outside line when the on-hook is on, and restores the line. When the off-hook state is established, the main control unit 2 keeps the communication state and restores the line after the telephone 20 notifies the on-hook.

Second Embodiment In the above description, the communication line 6 is normally connected to the communication circuit 21.
Side, and a manual call and facsimile transmission by a dedicated extension telephone have been described. However, the present invention is not limited to the above example. Needless to say, the line 6 may be connected to the facsimile apparatus 4 so that the facsimile apparatus 4 can automatically transmit / receive an incoming call.

Alternatively, the DC loop monitoring circuit 25 may be always energized and the communication line 6 may be connected to the communication line 8 immediately when a DC loop is formed in the communication line 8 from the facsimile machine 4.

Third Embodiment In the above description, the exchange control of the extension telephones is performed by the single main controller 2. However, in the case where the number of the stored external lines is one, the main controller has the single configuration. A telephone-equipped FA in which a network control circuit for controlling a network with an outside line is added in a telephone connected to the facsimile apparatus 4.
Only the X adapter is sufficient. In this case, the communication path to the facsimile apparatus 4 can be controlled by the operation from the telephone.

 FIG. 4 shows such an example.

In FIG. 4, reference numeral 31 denotes a network control device for controlling an interface with the outside line 1, reference numeral 32 denotes a telephone unit having the same configuration as the telephone 20 shown in FIG. 2, reference numerals 36 and 37 denote telephone lines 6 in FIG.
These are a communication line and a control line similar to the control line 7.

As described above, according to the above embodiment, since the facsimile apparatus 4 is connected to the main controller 2 via a dedicated telephone which can be connected as standard equipment, the telephone
Calling (dialing) to a facsimile communication partner is possible by operating the 20 telephone number keys, and there is no need to connect a general telephone which cannot be connected to the facsimile apparatus 4 with the standard equipment of the main control unit. Therefore, there is no need to equip a new interface.

Then, after the other party answers the call from the telephone 20, the line can be easily switched to the facsimile communication only by pressing the start button of the facsimile apparatus.

In addition, when the facsimile device is a desktop type, if it is installed on a table, etc., replace it with a dedicated telephone for the facsimile device,
By connecting the telephone set of the embodiment and providing the network control circuit 31, the main control unit 2 becomes unnecessary, the structure is simple, and a great effect can be obtained in terms of space saving.

Further, the data communication device and the public line can be connected by an operation from the data communication device, and a call can be made.

[Effects of the Invention] As described above, according to the present invention, a loop is formed in a first connection line connected to an attached telephone connection terminal of a data communication device, and a call is made to a communication partner connection terminal of the data communication device. Can be connected to the telephone line via the second connection line and the communication partner can be the communication partner, so that the telephone set attached to the data communication device can be substituted by the telephone device, and the data communication device can perform data communication. Can be simplified.

[Brief description of the drawings]

FIG. 1 is a schematic system configuration diagram of one embodiment according to the present invention, FIG. 2 is a detailed configuration diagram of the telephone set 20 shown in FIG. 1, FIG. FIG. 5 is a block diagram of another embodiment according to the present invention, and FIG. 5 is a block diagram of the telephone system of the prior application. In the figure, 1... Subscriber telephone line, 2... Main controller, 3.
Conventional dedicated extension telephone, 4 facsimile apparatus, 5 ... conventional facsimile apparatus attached telephone, 6, 8, 9, 36 ... communication line, 7, 37 ... control line, 20 ... telephone of this embodiment, 10 ......
DC loop forming line, 21… Talking circuit, 22… Handset,
23 …… Call signal generation circuit and DC supply circuit, 24,25 ……
DC loop monitoring circuit, 26 ... DC loop forming circuit, 27 ...
... Operation part, 28 ... Control circuit, 29 ... Switching relay, 30 ... Foot switch, 31 ... Network control circuit, 32
... This is the telephone unit.

Claims (1)

(57) [Claims] 1. A telephone device connectable to a data communication device, comprising: a communication means connected to a communication line for performing a call with a communication partner; and an attached telephone provided in the data communication device. Forming means for forming a loop on the first connection line connected to the terminal, and connecting the communication line provided to the data communication device to the communication line via the second connection line. And a connection means for setting a communication partner of the communication means as a communication partner of the data communication device.