JP2002009972A - Communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily transfer a telephone call to a telephone set by conveniently calling the telephone set even without an exclusive circuit for call as in the conventional manner when the usual telephone call is received by facsimile equipment. SOLUTION: When no CNG signal is received even when the call is received by a first line for facsimile communications, a telephone set 12 is called by transmitting a telephone number of a second line for the telephone set 12 to a switchboard 30 via the first line. The telephone call is transferred by responding to the call by the telephone set 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal having a transfer function.

[0002]

2. Description of the Related Art A function of transferring a call received from one's own telephone to another telephone (call transfer function: voice warp)
Has been realized. As an embodiment of such a transfer function, an unconditional transfer mode in which an incoming call is directly transferred to a predetermined transfer destination without ringing the bell, and when a predetermined number of rings are performed and there is no response, the predetermined transfer destination A no-answer transfer mode in which a call is forwarded to a call, and a post-response transfer mode in which a telephone once answered is transferred to a predetermined transfer destination.

By the way, a normal telephone call may be made to a facsimile apparatus provided with an attached telephone. In such a case, conventionally, an alarm signal is transmitted to an attached telephone to ring the bell of the telephone.

[0004]

However, such a conventional facsimile apparatus has a problem in that a dedicated circuit for transmitting an alarm signal, ringing the bell of the telephone, and calling the telephone is required.

[0005] The present invention has been made in view of the above circumstances, and a communication terminal capable of calling a telephone when a normal telephone call is received without a conventional dedicated circuit for calling. It is intended to provide a device.

[0006]

According to a first aspect of the present invention, there is provided a communication terminal device having a function of transferring a communication to a telephone via an exchange, which indicates that the communication is from a non-voice terminal when a call is received. Means for detecting whether or not a signal has been received, and means for transmitting the telephone number of the telephone to the exchange when not receiving the signal,
The communication from the voice terminal is transferred to the telephone.

In the communication terminal device according to the first aspect, it is detected whether or not a signal (for example, a CNG signal) indicating communication from a non-voice terminal is received at the time of an incoming call, and the signal is not received. Then, the telephone number of the telephone to be transferred is sent to the exchange, and the telephone is transferred to the telephone. If the incoming signal does not come and the signal is not received, that is, if the telephone is a normal telephone, the telephone is transferred to the telephone using the transfer mode after the response. This eliminates the need for a dedicated circuit for calling a telephone as in the related art, and makes it possible to easily call a normal telephone call and respond easily.

According to a second aspect of the present invention, there is provided a communication terminal device having a communication transfer function via an exchange, comprising: a terminal device main body and a telephone to which a first line and a second line having different telephone numbers are respectively assigned. And transmitting the telephone number of the second line to the exchange via the first line when not receiving a signal indicating that the communication is from a non-voice terminal when receiving the first line. It is characterized by.

In the communication terminal device according to the second aspect, for example, a plurality of ISDN lines are used, and a signal indicating that the communication is from a non-voice terminal when the first line on the terminal device body side receives an incoming call. If no CNG signal is received, the telephone number of the second line of the attached telephone set as the transfer destination is transmitted to the exchange via the first line. This eliminates the need for a dedicated circuit for calling as in the prior art, and enables high-speed and efficient transfer when a normal telephone call is received.

[0010] According to a third aspect of the present invention, there is provided a communication terminal apparatus.
A means for determining whether or not the second line is in use; performing a transfer to the telephone when the second line is not in use; Is characterized in that transfer to the telephone is not performed.

According to a third aspect of the present invention, there is provided a communication terminal apparatus comprising:
It is determined whether or not the line is in use. If the line is not in use, transfer is performed. If the line is in use, transfer is not performed.
Therefore, when the device is in use, no wasteful transfer is attempted and the process is efficient.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings showing the embodiments. FIG. 1 is a block diagram showing a configuration of a facsimile machine 20 as a communication terminal device of the present invention. The facsimile machine 20 includes a main control unit 1, a reading unit 2, a recording unit 3, a display unit 4, an operation unit 5, and an R unit.
OM 6, RAM 7, image memory 8, timer 9, modem 1
0, a DSU (Digital Service Unit) 11, an attached telephone 12, and the like.

The main control unit 1 is specifically composed of a CPU, is connected to the above-mentioned hardware units of the facsimile machine 20 via a bus 13, controls them, and stores them in the ROM 6. Various software functions are executed according to the stored computer program.

The reading section 2 reads a document by a scanner using a CCD, for example, and outputs dot image data. The recording unit 3 is an electrophotographic printer device, and prints out image data received by facsimile communication or image data of a document read by the reading unit 2 as a hard copy.

The display unit 4 is a display device such as a liquid crystal display device or a CRT display.
The operation status of the document is displayed, and the image data of the document read for transmission or the received image data is displayed. The operation unit 5 includes character keys, numeric keys, speed dial keys, one-touch dial keys, various function keys, and the like necessary for operating the facsimile machine 20.
In addition, by making the display unit 4 a touch panel type,
Some or all of the various keys of the operation unit 5 can be substituted.

The ROM 6 stores various software programs necessary for the operation of the facsimile machine 20 in advance. The RAM 7 is configured by an SRAM, a flash memory, or the like, and stores temporary data generated when executing software. The image memory 8 is composed of a DRAM or the like, and stores image data to be transmitted or received image data. The timer 9 measures a predetermined time.

The modem 10 has a D / A conversion / A / D conversion function and a facsimile communication function. D
The SU 11 is hardware for closing and opening the ISDN line L with the exchange 30 in the digital network (ISDN), and connects the modem 10 to the digital network as needed. The telephone 12 is connected to the modem 10 and used during a normal call.

The facsimile apparatus 20 is assigned two ISDN lines having different telephone numbers, one of which is used for transmitting / receiving image data in facsimile communication, and the other of which is a second line. 1
2 during a normal call.

In the facsimile apparatus 20 of the present invention, when an incoming call is received on the first line, the communication is not image data communication, that is, when the communication is normal telephone communication, the telephone 12 is connected to the first line. The telephone number of the second line is transmitted to the exchange 30, and the telephone 12 is called to perform the transfer.

Next, the operation will be described. FIG. 2 is a flowchart showing the procedure of the processing operation of the facsimile machine 20.

When the main controller 1 detects an incoming call from an arbitrary source on the first line (step S1: YES),
It is determined whether or not the transmission signal from the transmission source includes a CNG signal (calling tone) indicating that the calling station is a non-voice terminal (step S2). When the CNG signal is included (S2: YES), since the communication is the image data, the main control unit 1 receives the transmitted image data (step S11).

When the CNG signal is not included (S
2: NO), the main controller 1 determines whether or not the second line is in use (step S3). When not in use (S3: NO), the main control unit 1 hooks the first line (step S4) and dials the telephone number of the second line via the first line (step S5). When the second line is in use (S3: YES), the main control unit 1
Transmits a message "I am absent. Please call again later" to the sender (step S10).

Then, the main control unit 1 determines whether or not there is a response to the dial call at S5, in other words, the second
It is determined whether the line has gone off-hook (step S6). The determination of the presence or absence of the response is repeated within a predetermined time measured by the timer 9 (step S8: NO).
When there is a response within the predetermined time (S6: YES), the main control unit 1 releases the first line (step S7). Thus, the transfer to the telephone 12 is completed.

If there is no response from the second line within a predetermined time (S8: YES), the main control unit 1 releases the hooking of the first line (step S9) and returns to the message "Absent. Please send it to the sender (step S10).

In the above-described example, the facsimile apparatus is provided with an attached telephone, and an external telephone is transferred to the telephone. However, unlike this example, each telephone line (telephone) is different. The present invention can also be applied to a configuration in which a facsimile apparatus having a common telephone number and a normal telephone are provided side by side and communication processing is performed independently of each other, instead of using a common modem and DSU as in the above example. Can of course be similarly applied.

[0026]

As described above, according to the present invention, when a signal (CNG signal) indicating that communication is from a non-voice terminal is not received after the line is closed at the time of an incoming call, the telephone set is transmitted to the exchange. Since the telephone number is transmitted and the transfer to the telephone is performed, a normal telephone can be easily transferred to a predetermined telephone. At this time, a conventional dedicated circuit for calling the telephone is not required, and the calling can be easily performed.

According to the present invention, a plurality of ISDN lines are used, and when the first line is received, the telephone number of the second line to be transmitted to the exchange via the first line is transmitted. Therefore, the transfer can be efficiently performed at high speed.

Further, in the present invention, it is determined whether or not the second line is in use, and if the second line is in use, no transfer is performed. Therefore, if the second line is in use, useless transfer is attempted. This can be prevented in advance and is efficient.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a facsimile apparatus of the present invention.

FIG. 2 is a flowchart showing a procedure of a processing operation of the facsimile apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main control part 6 ROM 7 RAM 8 Image memory 10 Modem 11 DSU 12 Telephone 20 Facsimile machine 30 Exchange

Claims (3)

[Claims] 1. A communication terminal device having a function of transferring communication to a telephone via an exchange, wherein means for detecting whether or not a signal indicating a communication from a non-voice terminal has been received at the time of an incoming call; Means for transmitting a telephone number of the telephone to the exchange when a signal is not received, wherein communication from a voice terminal is transferred to the telephone. 2. A communication terminal device having a communication transfer function via an exchange, comprising a terminal device main body and a telephone to which a first line and a second line having different telephone numbers are respectively assigned, and receiving the first line. A communication terminal device for transmitting a telephone number of the second line to the exchange via the first line when a signal indicating communication from a non-voice terminal is not received. 3. A means for judging whether the second line is in use or not, performing transfer to the telephone when the second line is not in use, wherein the second line is in use. 3. The communication terminal device according to claim 2, wherein transfer to the telephone is not performed in some cases.