JPH04331547A - Telephone exchange - Google Patents

Abstract

PURPOSE:To effectively utilize option service. CONSTITUTION:A controller 211 of a key telephone system 201 requests the use of a FAX board 120 or a voice storage device 121 through an inter-system connection interface 207 to a controller 111 of a controller 111 of a key telephone system 101. Then, a signal channel is formed, and a facsimile modulated signal is received and recorded by a facsimile 243 or audio signals to be stored are transmitted to the voice storage device 121 and stored.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone switching device capable of so-called inter-system connections.

0002

2. Description of the Related Art Conventionally, this type of device has provided an extension board or the like as an extension function of the system, and has been connected to other systems, so that one system can capture the external line of the other system.

0003

[Problem to be Solved by the Invention] However, in the above conventional example, the connection interface with other systems is simply configured in the same way as an extension interface, so there is a limit to the service functions that can be realized between systems. .

0004

[Means for Solving the Problems] The present invention has been made in view of the drawbacks of the conventional example described above, and has a control data channel and a communication data channel between it and other systems.
By using the system functions of other systems,
It modulates operational data into fax data and stores audio.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of one embodiment of the present invention, showing a case where two key telephone devices are connected between systems.

Reference numeral 101 denotes a communication processing device which plays a central role in the control in the embodiment of the present invention, and is a key telephone device accommodating a plurality of outside lines and extension lines. 102 is an external line which is a general public line, and 103 is ISDN (Integrated Service Digital Network).
Line, 104 is an external line interface that sends dials to the external line 102 and detects incoming calls, 105 is ISDN
T-point interface 106 is a dedicated telephone interface for accommodating a dedicated telephone as an extension;
7 is an inter-system connection interface for connecting another button telephone device 201; 108 is a general telephone interface for accommodating a general telephone or facsimile; 10
9 is an ISDN S point interface; 110 is a communication path switch for exchanging/connecting the communication path between an outside line and an internal line; 11
1 is a control device consisting of a microprocessor etc. that controls the operation of this button telephone device, 112 is a ROM (read only memory) that holds programs etc. that describe the operation of the system, and 113 is system operation data, that is, information for each terminal. This is a RAM (Random Access Memory) that holds configuration data and billing information.

120 is a facsimile board (optional) that modulates data in order to output the contents of the RAM 13 to a facsimile and processes facsimile communication procedures;
Reference numeral 121 denotes a voice storage device (optional) for recording the contents of a call and for voice responses.

131 and 132 are main button telephone devices 101
141 is a standalone telephone, 142 is a dedicated telephone housed in
is an ISDN terminal, and 33 is a facsimile (G3).

The configuration of the button telephone device 201 is also almost the same, and the explanation thereof will be omitted.

The operation of the embodiment of the present invention will be explained below with reference to FIGS. 2 and 3.
This will be explained using the flowchart shown in . Now, the button telephone device 101
and 201 are connected between systems, and on the 101 side,
It is assumed that the fax board 120 and voice storage device 121 options are installed, but the 201 side is not installed, and the user on the 201 side sends operational data by fax using the fax board 120 through the system connection. 243.

Here, in FIGS. 2 and 3, the left column (
Assume that a) shows the operation of the control device 111, the middle column (b) shows the operation of the control device 211, and the right column (c) shows the operation of the facsimile 243 housed on the 201 side.

First, when the user of the button telephone device 201 presses a special number for inter-system connection on the dedicated telephone 231, the control device 211 detects this (step 201). The control device 211 then looks at the operating status held in the RAM 213 and determines whether the specified intersystem connection interface 207 is free (
Step 202). If it is vacant, the button telephone device 10
1 using the control channel of the intersystem connection interface 207 to request start of an intersystem connection (step 203). When the control device 111 of the button telephone device 101 receives a request to start an inter-system connection from the button telephone device 201 (step 101), the control device 111 of the button telephone device 101 stores the
It is determined whether the connection interface 207 between the designated systems is free or not by looking at the operational status held in the system (step S102). If it is vacant, an affirmative response is returned to the key telephone device 201 (step 103).

The control device 211 of the button telephone device 201 receives the response from the button telephone device 101 (step 2).
04) and determines the content (step S205), and if affirmative, prepares for the user's next input. Here, when pressing the special number of the data output service is detected (step S206)
, the status of the facsimile 243 accommodated in the extension is determined (step 207), and if it is free, the key telephone device 101 is inquired about the status of the fax board 120 (step 208).

When the control device 111 of the button telephone device 101 receives an inquiry about the fax board status from the button telephone device 201 (step S104), it returns the status (step S105).

The control device 211 of the key telephone device 201 receives the response from the key telephone device 101 (step 209), and determines the content thereof (step S210). If it is vacant, a fax board activation instruction is sent to the key telephone device 101 (step S211), the facsimile 243 is called (step S212), and the communication path switch 210 is controlled to connect the inter-system connection interface 207 and the facsimile 233. are connected through a signal channel (step S213). When the control device 111 of the button telephone device 101 receives the fax board activation signal, it controls the communication path switch 110 and forms a signal channel between the fax board 120 and the inter-system connection interface. After this, the fax board 120 and the fax 243 on the button telephone device 101 side will be
A facsimile communication procedure is carried out between them via a signaling channel. That is, the facsimile 243 sends out an identification signal (DIS) (step 301).

In response, the fax board 120 sends out a command signal (DCS) (step 106) and a training signal (TCF) (step 107). Then, the facsimile 243 sends a reception response (CFR) (step 302).

Subsequently, the fax board 120 notifies the control device 211 of the key telephone device 201 via the control channel that the training has ended. (Step (108).

Here, the control device 2 of the button telephone 201
11 sends data to be output (operational data) and a modulation request using the inter-system control channel (step S214). Fax board 12 that received this
0 modulates the data to be output into facsimile data (step 109) and transmits it via the signal channel. When you have finished sending one page of data, press End of Page (E).
OP) is sent out (step 110).

The facsimile 243 that receives this returns a message response (MCF) (step 303). Then, the fax board 120 disconnects the facsimile communication (step 111).

At this point, if there is no further processing to be performed, both the button telephone devices 101 and 102 disconnect the intersystem connection interfaces 107 and 208 (steps 112 and 215).

Note that when there are multiple pages of output data, the process does not end at step 111 but proceeds to step 214.
Return to

As described above, in this embodiment, when it is desired to print the operational data of the button telephone device 201, which does not have a built-in fax board, from the extension facsimile 243, the control device 211 transfers the operational data (character code) between systems. The data is sent to the button telephone device 101 having a built-in fax board 120 via the control channel of the fax board 120. The button telephone device 101 that has received the operational data expands the operational data into bits using the fax board 120, converts it into a facsimile signal, and sends it back via the inter-system signal channel.

The key telephone device 201 sends the facsimile signal to the extension facsimile 243 via the call path switch 210. Therefore, even in the key telephone device 201 that does not have a built-in fax board, operational data can be printed using the extension facsimile 243.

It should be noted that communication between the control device 211, the control device 111, and the fax board 120 is carried out via a control channel, while communication between the facsimile machine 243 and the fax board 120 is carried out via a signal channel.

The present invention is not limited to the embodiments described above, but can be modified in various ways. For example, although data output service is performed immediately after the start of connection between systems, it may be possible to accept this service during a call. Further, data output may be activated by an instruction from the key telephone 101 side. Further, the facsimile communication procedure is not limited to G3, and can be similarly implemented in G4 if a procedure is prepared.

Furthermore, the type of service is not limited to the use of a fax board, but may be any type of service that uses a control channel between systems to execute a control procedure and communicate content via a signal channel or a control channel. , for example, it may be a service using the audio storage device 121.

For example, the outside line 20 of the button telephone device 201
If it is desired to provide a voice storage service in response to an incoming call from 2, the control device 211 requests the button telephone device 101 to activate the voice storage device 121 via the control channel of the inter-system connection interface 207 when the call arrives. and. The communication path switch 210 is controlled to form a signal channel between the outside line 202 and the inter-system interface 207.

On the other hand, the control device 1 of the button telephone device 101
11 controls the communication path switch 210 to connect the voice storage device 1
21 and the inter-system connection interface 107, and also activates the audio storage device 121.

Therefore, it becomes possible to store the voice from the outside line 202 in the voice storage device 121.

Furthermore, the audio stored in the audio storage device 121 can be played back from the dedicated telephone of the key telephone device 201 in the same manner.

[0031] In the above explanation, a case has been described in which the button telephone device 101 performs a service that is not provided in the button telephone device 201. However, when these are in use, the button telephone device 101
You may also use the services of

[0032]

[Effects of the Invention] As explained above, according to the present invention,
Since the functions of other systems can be used using communication control procedures, the device can be used efficiently.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a button telephone device that is one embodiment of the present invention.

[Fig. 2] The first control that best represents the characteristics of the device of the present invention
This is a flowchart.

FIG. 3: The second control that best represents the characteristics of the device of the present invention.
This is a flowchart.

[Explanation of symbols]

101 Button telephone device 107 Inter-system connection interface 111
Control device 120 Fax board 121 Voice storage device 130 Dedicated telephone 201 Button telephone device 207 Inter-system connection interface 243 Facsimile

Claims (4)

[Claims] 1. An intersystem connection interface for connecting another telephone exchange having an optional unit that executes a specific service, and an intersystem connection interface for connecting the other telephone exchange to the other telephone exchange through the intersystem connection interface. and communication means for communicating audio signals for the specific service with the optional unit via the inter-system connection interface, A telephone exchange device characterized in that the operation is performed by an optional unit of the telephone exchange device. 2. The telephone exchange apparatus according to claim 1, wherein said option unit has a facsimile modulation function, and said communication means receives a facsimile modulation signal from said option unit. 3. The optional unit according to claim 1, wherein the optional unit has an audio storage function, and the communication means transmits the audio signal to be stored to the optional unit.
telephone switching equipment. 4. An inter-system connection interface for connecting another telephone exchange, an optional unit for executing a specific service, and a method for connecting the specific service from the other telephone exchange via the inter-system connection interface. 1. A telephone exchange apparatus comprising control means for forming a signal channel between the optional unit and the inter-system connection interface and activating the optional unit when receiving a request for execution of the above.