JPS60229540A - Telephone set - Google Patents

Abstract

PURPOSE:To acquire immediately a circuit after the circuit goes to idle by providing a multichannel system with a means which carrying on circuit acquiring operation by reservation, an automatic dial signal sending means, and a means which reports the acquisition of a circuit to a calling subscriber. CONSTITUTION:A control part 6 allows a channel (CH) switching part 3 to repeat switching operation once the handset of a telephone set 4 is put off the hook. When a reservation operation button 7 is pressed during this period, a reservation operation circuit 8 and a dial number registration part 9 are set and the signal of call dialing operation is stored in the registration part 9 on the call dialing operation. Then, the handset is returned, but the circuit 8 is set, so the switching part 3 carries on the switching operation. When one CH goes to idle, the switching part 3 stops at the corresponding contact and a call signal is sent out of the control part 6 to acquire the CH. Then, the control part 6 sends the call signal to an automatic dial signal sending part 10, which reads the dial number out of the registration part 9 to make a call. Further, the control part 6 sends the call signal to a signal sending part 11, which sends out the signal to the telephone set 4 to report that the call is ready.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a telephone device that employs, for example, a multi-channel access method.

[Technical background of the invention]

For example, as a multi-channel access method used in disaster prevention administrative radio, etc., there is a cyclic non-localization method. FIG. 1 is a diagram illustrating the operation of a terminal station in this cyclic non-localization method.
. . 3-n, 3-1, .

When the telephone 4 makes a call, the channel switching unit 3 starts operating and stops at the empty channel 5-1 that is reached first among the channels 5-1 to 5-n connected to each contact and outputs the call signal. Send out.

The master station control device (not shown) is connected to the terminal station 1 through the wireless line of channel 5-t, and upon receiving the calling signal, immediately stops sending out the idle signal of channel 5-1. , a lock signal is sent out to notify other terminal stations that it is busy, and a call confirmation signal is sent to terminal station 1, after which normal connection operations are performed. Note that the control device of the master station is connected to the master station relay exchange.

In addition, when a call is made from the master station side, by changing the idle line signal of the channel 5-1 to a lock signal, the channel switching unit 3 of all the terminal stations that are not making a call is transferred to the contact 3-1.
Then, by sending a selection signal to terminal station 1, the remaining terminal stations start switching operation again.

The control unit 6 shown in FIG. 1 controls channel switching, transmits and receives control signals, and serves as an interface with the telephone 4.

[Problems with background technology]

By the way, in this type of telephone device, a much larger number of terminal stations than the number of channels share the channels, so when emergency calls are required, such as in the event of a wide-area disaster, all channels cannot be used. During this period, there were many occasions when the system became unusable, which caused serious operational problems. That is, in such a case, the caller has to wait with the handset hooked up for an unspecified amount of time until the line becomes free. Therefore,
A method has been proposed to compensate by providing a blank line display means, but the caller must always pay attention to this blank line display, and if a blank line is displayed, the caller must immediately proceed to the call operation. During this time, other work cannot be done, and even if you recognize the empty line and immediately make a call, another terminal station may monopolize the line immediately before making a call, making it impossible to make a call. There was a problem.

Furthermore, considering the efficiency of this type of system as a whole, there is a drawback that even when such a situation occurs at each terminal station, there is time when the line is idle, and the line usage efficiency is not high. Ta.

[Purpose of the invention]

The present invention eliminates the above-mentioned drawbacks of this type of telephone equipment by making it possible to immediately capture a busy line when it becomes free, thereby completing the calling operation. It is an object of the present invention to provide a telephone device that can improve operational efficiency during busy times and further improve usage efficiency during busy periods.

[Summary of the invention]

In the present invention, the telephone device includes a means for continuously performing an operation for seizing a line according to a reservation operation by a caller, a dial number registration means for storing a dial number dialed by a caller, and a means for continuously performing an operation for seizing a line according to a reservation operation by a caller, and a dial number registration means for storing a dial number dialed by a caller. Sometimes, the above objective is achieved by providing automatic dialing means for reading out the stored dialing number and sending out a dialing signal, and means for sending a callback signal to notify the caller that the line has been captured. .

[Embodiments of the invention]

An embodiment of the present invention will be described in detail below with reference to FIGS. 2 and 3.

First, referring to FIG. 2, the telephone 4 includes a reservation operation button 7 as a reservation operation means, and a reservation operation circuit 8 that is set when the reservation operation button 7 is pressed. The radio control section 2 also includes a dial number registration section 9, an automatic dial sending section 10, and a call back signal sending section 11.

Note that 12 is a telephone circuit.

Next, the operation of the apparatus shown in FIG. 2 will be explained with reference to the timing chart shown in FIG.

First, when the caller picks up the handset of the telephone 4 at time t1, a 7-pickup signal shown in FIG. 3(a) is given to the control unit 6, and the channel switching unit 3 Start the switching operation as follows. In this case, since there is no empty channel, the channel switching unit 3 repeats the switching operation. During this time, the caller is at point 1. When the reservation operation button 7 is pressed at , the pulse shown in FIG. 3(c) is applied to the reservation operation circuit 8, and the pulse shown in FIG. 3(d) is applied.

As shown in (-), the dial operation circuit 8 and dial number registration section 9 are set. Next, the caller performs a dialing operation as shown in FIG. 3(f), and the dial signal corresponding to the dialed number is stored in the dialed number registration section 9 as shown in FIG. 3(,). .

The caller who performed the dialing operation hangs up the handset at time t3, but since the reservation operation circuit 8 is set, there is still no hookup for the channel switching unit 3 and channel groups 5-1 to 5-1. The state is maintained, and the channel switching unit 3 continues the switching operation.

For example, when channel 5-t becomes vacant at time t4, channel switching unit 3 stops at contact 3-1 connected to channel 5-1, and a calling signal is sent from control unit 6 to switch channel 5-1 to channel 5-1. is captured.

Next, the control unit 6 transmits a dial signal to the master station through the captured channel 5-1, as shown in FIG. 3(g).
A calling signal shown in FIG. 1 is sent to the automatic dial transmitting section 10 to start the automatic dial transmitting section 10.

As a result, the automatic dial sending section 10 reads out the dial number of the other party stored in the dial number registration section, and sends a dial signal corresponding to the dial number of the other party to the master relay exchange, as shown in FIG. 3(h). Send it towards.

Further, the control section 6 sends a calling signal to the call-back signal sending section 11 . As a result, the callback signal sending section 11 performs
A callback signal shown in is sent to the telephone set 4 to notify the caller who made the reservation that the call is available. The calling party who has made the reservation recognizes this callback signal and picks up the handset at time t5 shown in FIG. 3(,).

At this time t5, it is assumed that the other party is connected. This includes the sending timing of the calling signal, the delay and timing due to the dialing sending time, the sending time of the call back signal, and the reservation validity time (
This can be easily realized by adjusting the time T) in FIG. 3(1). In other words, if the caller who made a reservation abandons the call for some reason and does not pick up the handset within the reservation time T even though he/she receives a callback signal, the call will be received on the other party's phone. The line can be abandoned without transmitting sound.

When the caller who has made the reservation picks up the handset upon receiving a callback signal, the call begins at time t6 shown in FIG. 8 and the dial number registration section 9 are reset, and the operation continues in the normal telephone network connection sequence.

Although the above embodiment adopts a multi-channel access method in which a plurality of lines are shared by a large number of terminal stations, the present invention is not limited to this and can be implemented with various modifications. For example, there may be a single line, or the reservation function may be provided only to the telephone equipment of a specific terminal station. Further, the telephone device is not limited to a telephone, but may be a facsimile device or the like.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, it is possible to make a reservation by making a call at any time.
Until a call-back signal is received, the user is released from the telephone device and can perform other tasks.

In addition, as soon as the line becomes free, a callback signal is issued, allowing the call to be made at the earliest possible time.

Therefore, line usage efficiency is improved, and it is extremely useful especially when applied to telephone systems such as disaster prevention administrative radio systems, where there are many opportunities for lines to become unavailable due to concentration of traffic when emergency communication is required in times of disaster or the like.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a terminal station of a telephone device that employs a circular non-localization method, FIG. 2 is a block diagram of a terminal station in an embodiment of the telephone device according to the present invention, and FIG. 3 is a diagram for explaining its operation. timing chart) [is. DESCRIPTION OF SYMBOLS 1...Terminal station, 2...Radio device control unit, 3...Channel switching unit, 4...Telephone, 6...Control unit, 7...
・Reservation operation button, 8: Reservation operation circuit, 9: Dial number registration section, 10: Automatic dial sending section, 1
1... Call return signal sending unit, 12... Telephone circuit. Figure 2

Claims (1)

[Claims] Connected to a line used jointly with other telephone devices, and when the line is empty due to a calling operation by a caller, the line is automatically captured and a call can be made. In the telephone device, there is a reservation operation means, a means for continuously performing an operation to seize the line when the caller operates the reservation operation means, and a device that is designated by the caller's dial operation following the above-mentioned reservation operation. dial number registration means for storing a dial number; and automatic dialing means for reading the dial number stored in the dial number registration means and transmitting a dial signal corresponding to the dial number through the line when a line is captured. and a callback signal sending means for sending a callback signal to notify the caller that the line has been captured.