JP3077828B2 - Telephone and control method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone.

[0002]

2. Description of the Related Art Conventionally, in a facsimile apparatus having an automatic calling function, if it is not determined that an automatic call has been made and a partner station terminal has responded, the line is disconnected once and then a call is automatically re-issued. It is common to have a so-called automatic redial function that attempts communication.

As a criterion for determining the response of the terminal of the partner station, there is a facsimile apparatus for detecting the polarity reversal of the line. However, a polarity reversal detection circuit is required, and there is also a line where the polarity reversal is not performed. For example, the terminal of the partner station receives the T.100 of the CCITT recommendation. In the case of a facsimile apparatus conforming to V.30, a V.30 signal such as a tonal signal CED or DIS which is to be always transmitted after an incoming call is received. If any one of the 21 binary signals is detected, it is determined that the partner station terminal has responded.

[0004]

However, in the above-described conventional example, the terminal of the partner station is a true facsimile machine and the line is busy or the terminal side cannot respond temporarily for some reason. Since the calling side cannot identify whether the terminal is a telephone and therefore cannot respond, the useless redial operation is performed even when the other party is a telephone.

[0005] For this reason, if a timer transmission or the like is performed in the middle of the night, if the telephone number of the other party is specified by mistake, the wrong telephone is dialed many times, and the wrong number is dialed. Even if the person called by the user knows that the other party is a facsimile machine and hangs up, he is called again by redialing and suffers a great deal of trouble.

According to the present invention, when an incoming call is received from a facsimile machine due to an error, the incoming call is responded to by an operator.
Te, so as to transmit the facsimile communication procedure signals, Oh
It is an object of the present invention to stop a useless redial operation even for a facsimile apparatus having no function of receiving a special signal other than a facsimile communication procedure signal at the will of a perlator .

[0007]

In order to achieve the above object, the present invention provides a transmitting means for transmitting a facsimile communication procedure signal and an instruction for transmitting the facsimile communication procedure signal.
Determining means for determining whether or not a predetermined key has been operated, and transmitting the facsimile communication procedure signal by the transmitting means in response to the determination by the determining means, and stopping the redialing operation to the communication partner And control means for controlling the telephone so as to cause the telephone to operate.

Further, the present invention includes a transmission step of transmitting the facsimile communication procedure signals, the facsimile communication procedure
Whether a predetermined key for instructing signal transmission has been operated
A discriminating step of discriminating whether the facsimile communication procedure signal is transmitted in the transmitting step in accordance with the discrimination in the discriminating step, and a control step of controlling the other party to stop the redial operation. A method for controlling a telephone is provided.

[0009]

FIG. 1 is a block diagram showing a main part of a touch-tone telephone according to an embodiment of the present invention.

This telephone includes a ten key 11 for dial input and the like, a selection signal output control gate 12 for controlling an output line of a selection signal, a selection signal generating circuit 13 for generating a selection signal based on the dial input. A wrong fax exclusion button 21 as a redial exclusion button for stopping redialing of a wrong facsimile;
CED output control gate 22 for controlling the ED output line
And CED based on the pressing of the FAX exclusion button 21
A CED generating circuit 23, a timer 24 for measuring the output timing of the CED, and an output signal line 3
And a telephone line 4.

When the numeric keypad 11 is pressed, a selection signal (PB signal) of a predetermined frequency is generated from the selection signal generation circuit 13 as in a normal telephone, and the selection signal output control gate 12 is closed and pressed. A selection signal corresponding to the key is transmitted to the telephone line 4 via the output signal line 3.

Further, the CED generation circuit 23 has 2100H
When the tone of z ± 15 Hz is constantly generated and the value of the timer 24 is $ 0, the CED output control gate 22 is closed and the CED is transmitted to the telephone line 4 via the output signal line 3.

When the FAX exclusion button 21 is pressed, a predetermined time (3 seconds) for sending the CED is preset in the timer 24.

Therefore, when the operator of the telephone responds to the call by facsimile incoming call, by pressing the FAX exclusion button 21 in the off-hook state,
The CED is sent to the calling facsimile machine. Therefore, the calling-side facsimile apparatus shifts to the group identification operation of the called-side terminal from the CED. However, since the signal following the CED cannot be detected, the time is over, and the processing shifts to the interruption procedure. This makes it possible to stop redialing.

In the above embodiment, the telephone which sends out the CED as a redial stop signal for receiving an incorrect facsimile call has been described.
CCITT recommendation T. recorded on memory etc. 30 DCNs
(A disconnection command signal).

In the above embodiment, the operator manually depresses the button to stop redialing of an incorrect facsimile incoming call. May automatically transmit a CED or DCN upon detection of a call.

[0017]

As described above, according to the present invention,
Despite the phone, Oh facsimile communication procedure signals
Because to be sent in response to the operation of the Operator, Oh
Unnecessary redial operation can be stopped even for a facsimile apparatus that does not have a function of receiving a special signal other than the facsimile communication procedure signal by the intention of the perlator .

[Brief description of the drawings]

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

[Explanation of symbols]

 11 numeric keypad, 12 selection signal output control gate, 13 selection signal generation circuit, 21 FAX elimination button, 22 CED output control gate, 23 CED generation circuit, 24 timer.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04M 11/00-11/10 H04M 1/00 H04M 1/26-1/57

Claims (6)

(57) [Claims] A transmitting means for transmitting a facsimile communication procedure signal ; and a transmission means for instructing transmission of the facsimile communication procedure signal.
Discriminating means for discriminating whether a predetermined key has been operated ; and, in accordance with the discrimination by the discriminating means, transmitting the facsimile communication procedure signal by the transmitting means so as to stop a redialing operation to a communication partner. Control means for controlling; and a telephone set. 2. The telephone according to claim 1, wherein said transmitting means is means for transmitting a called station identification signal of a facsimile communication procedure signal. 3. A telephone according to claim 1, wherein said transmitting means is means for transmitting a line disconnection command signal of a facsimile communication procedure signal. 4. A transmitting step for transmitting a facsimile communication procedure signal ; and a transmission instruction for transmitting the facsimile communication procedure signal.
A discriminating step of discriminating whether or not a predetermined key has been operated ; and, in accordance with the discrimination in the discriminating step, transmitting the facsimile communication procedure signal in the transmitting step to stop a redialing operation to a communication partner. A control step of controlling; and a method of controlling a telephone. 5. The method according to claim 4, wherein the transmitting step is a step of transmitting a called station identification signal of a facsimile communication procedure signal. 6. The telephone control method according to claim 4, wherein the transmitting step is a step of transmitting a line disconnection command signal of a facsimile communication procedure signal.