JP2658181B2 - Telephone terminal device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone terminal device such as a telephone for transmitting and receiving voice and data through a telephone line.

2. Description of the Related Art A conventional telephone terminal device will be described below with reference to the drawings.

FIG. 4 shows an external view of a conventional telephone terminal device. In FIG. 4, reference numeral 1 denotes a handset for transmitting and receiving voice, and 2 denotes an apparatus main body. FIG. 5 is a block diagram showing the configuration of the telephone terminal device. In FIG. 5, reference numeral 3 denotes an incoming call detection unit for detecting an incoming call; Is a dial signal transmitting section for transmitting a dial signal for transmission, 6 is a transmission / reception amplifier, 7 is a voice output section, 8 is a voice input section, and a portion 9 surrounded by a broken line
Indicates a receiving unit and 10 indicates a calling unit.

Regarding the conventional telephone terminal device configured as described above,
The operation will be described below.

First, when a bell signal arrives from the line, the incoming call detector 3
Detects the bell signal and outputs a bell sound from the bell sound output unit 4 to notify the incoming call. Thereafter, when the receiving side goes off-hook, the calling side and the called side receive the transmitting / receiving amplifier 6, the voice output unit 7,
It becomes possible to make a call via the voice input unit 8. Also, when making a call, after the user goes off-hook, dialing is performed by operating the dial signal transmitting unit 5, and when the other party goes off-hook, a call can be made in the same manner as described above.

By the way, when a plurality of telephone terminal devices are connected in parallel to the same line, it is not known until a certain telephone terminal device occupies the telephone line until the user goes off-hook. To solve this problem, the following were developed.

That is, when the telephone line is occupied by another telephone terminal device connected in parallel to the same line, the fact is displayed on the indicator lamp.

Problems to be Solved by the Invention However, the above-mentioned method also merely displays that the telephone line is occupied, and has the following problems.

In other words, the operator must wait for the line to be available while watching the lamp display. Therefore, when making an urgent call, the operator must constantly look at the lamp, which is very troublesome. It is.

In order to solve this, dialing information of a call destination is stored by a reservation operation, and after a telephone call of a telephone terminal device connected in parallel (hereinafter referred to as a parallel telephone terminal device) is completed, a line is captured and stored. Calls are made on the basis of the dialing information that is being used, and when the call is made, the fact that the line has been caught is output using a speaker sound. If you do
When the call of the parallel telephone terminal device is completed, the caller is notified by a speaker sound that the line is free, and the call is automatically dialed, so the caller hears the notification that the line is free. In some cases, a call can be started simply by going off-hook.

However, in the above configuration, the dial information must be input at the same time as performing the reservation operation. Therefore, the telephone number must be known when performing the reservation operation.

This reservation operation is performed only when it is desired to make a call immediately after one call is completed, and one call is usually several minutes, and when the telephone number of the party to be called is not immediately known. Then, while searching for the telephone number, the call of the parallel telephone terminal device ends. For this reason, the reservation operation is often performed after the call of the parallel telephone terminal device, and the meaning of the reservation operation is lost.

In addition, this reservation operation is intended to capture the line immediately after the end of the call of the parallel telephone terminal device and to prevent the line from being captured again by the parallel telephone terminal device. Even if the reservation operation is performed after the telephone terminal device ends the call, the parallel telephone terminal device may have captured the line again, and the start of the call may be delayed accordingly.

Furthermore, after performing this reservation operation, even if it is necessary to make a quick call to a caller who is different from the input dial information, the call is made based on the input dial information, The call was made to the hurried partner after the call and the call had ended.

In view of the above-described problems, it is assumed that the present invention allows a reservation operation to be performed immediately without knowing the person with whom the telephone number is to be called, and that the person who wants to make a call changes while waiting. It is an object of the present invention to provide a telephone terminal device capable of responding to any case.

Means for Solving the Problems In order to solve the above-mentioned conventional problems, the present invention allows a user to select whether or not to store dial information after performing a reservation operation, and not to store dial information. In this method, when a line is captured and a speaker sound is output and dial information is stored, an automatic call is performed in addition to the line capture and the speaker sound output.

According to the present invention, the reservation operation can be performed even if the telephone number is not immediately known when performing the reservation operation.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is an external view of a telephone terminal device according to an embodiment of the present invention. In FIG. 2, reference numeral 11 denotes a reservation switch. FIG. 1 is a block diagram showing the configuration. Reference numeral 12 denotes a line connection means. Reference numeral 13 denotes a line use detection unit for detecting whether or not the line is occupied. It has a built-in means to determine if it is not in use. 14 is a dial input unit for inputting a dial number, 15 is an LED, and 16 is a control unit, which has a built-in storage unit 16-a. 17 is a resistor, 18 is a monitor amplifier.

In this embodiment, the same reference numerals are given to the same components as those in the conventional example described above, and the description is omitted.

The operation of the telephone terminal device configured as described above will be described below with reference to the flowchart shown in FIG.

First, when the telephone line is open, the voltage of the telephone line becomes an open voltage, and when the voltage of the telephone line is 48V, it becomes 48V. When the telephone terminals connected in parallel close the telephone line, the line voltage is divided by the internal resistance of the exchange on the office side and the resistance of the telephone terminal, and the value is reduced. The line use detector 13 detects these two voltages by a known method, and outputs a low-level signal when the line is open and a high-level signal when the line is closed.
And a current flows through the LED 15 via the resistor 17.
Therefore, when the telephone line is closed, the LED 15 is lit, indicating that. While the telephone terminals connected in parallel are closing the telephone line, the reservation switch 11 is pressed down (step a), and the dial number of the other party is subsequently input from the dial input unit 14 (step b). Then, the dial information corresponding to the dial number is stored in the storage unit 16-a (step c), and the control unit 16 monitors a signal output from the line use detection unit 13 (step e). Note that if the reservation switch is pressed but the dial number is not input within a predetermined time, the process proceeds from step c to step e via step d. When the telephone terminals connected in parallel release the telephone line, the line use detector 13 detects this and outputs a low-level signal to the controller 16. As a result, the LED 15 is turned off. When a low-level signal is input, the control unit 16 controls the line connection means 12 to close the telephone line (step f). The dial tone input from the telephone line is amplified by the monitor amplifier 18 and output from the speaker 9 (step g) to notify the user that the telephone line is occupied. Next, the control means 16 stores
The dial information stored in "a" is read out, and dial information corresponding to the information is transmitted from the dial signal transmitting unit 5 to the telephone line (step i). If the dial number has not been input when the reservation switch 11 is pressed, the process proceeds from step h to step j, and after the line connection means 12 closes the telephone line, the user inputs the dial number from the dial input unit 14. It is in a state of waiting for input. In this embodiment, a dial tone arriving from the telephone line is used as the sound indicating that the line has been captured, but a circuit for generating other sounds may be added.

Advantageous Effects of the Invention The present invention enables a user to select whether or not to store dial information after performing a reservation operation. If dial information is not stored, a line is captured and a speaker sound is output. When storing dial information, in addition to capturing a line and outputting a speaker sound, automatic calling is performed. With this configuration, even when the telephone number is not immediately known when performing a reservation operation. Since the reservation operation can be performed for the time being, the user only needs to check the telephone number after the reservation operation and before the line is captured.

Also, in a situation where an urgent call is likely to occur, if you select to perform a reservation operation without entering dialing information, the dialing information of the caller who has the highest priority when the line is actually available becomes available. Just enter it.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a circuit configuration of a telephone terminal device according to an embodiment of the present invention, FIG. 2 is an external view, FIG. 3 is a flowchart showing an operation flow of the embodiment, FIG. Is an external view of a conventional telephone terminal device, and FIG. 5 is a block diagram showing a circuit configuration thereof. DESCRIPTION OF SYMBOLS 1 ... Handset 2 ... Device main body 3 ... Incoming call detection part 4 ... Bell sound output part 5 ... Dial signal transmission part 6 ... Transmission / reception amplifier 7 ... Audio output part 8 ... Audio input part 9 ... Incoming part 10 ... Call part 11 ... Reservation switch 12 ... Line connection means 13 ... Line use detecting part 14 ... Dial input part 15 ... LED 16 ... Control part 16-a ... Storage part 17 ... Resistor 18 Monitor amplifier

Claims (2)

(57) [Claims] An operation unit for performing a reservation operation for line capture and an operation for inputting dial information; a storage unit capable of storing dial information in advance; a determining unit for determining whether to use or not use a line; When performing a reservation operation by the operation means, it is possible to select whether to store the dial information, and then,
When it is detected from the output from the judging means that the line is changed from the used state to the non-used state, when storing the dial information, the line is captured and a sound indicating that the line has been captured is output from the speaker. When the dial information stored in the storage unit is transmitted to the line, and the dial information is not stored, the line is captured and a sound indicating that the line has been captured is generated from the speaker. A telephone terminal device comprising control means for performing control. 2. The method according to claim 1, wherein the selection of whether or not to store the dial information depends on whether or not the dial information has been input by the operation means within a predetermined time. Telephone terminal device.