JPS62224147A - Terminal equipment - Google Patents

Abstract

PURPOSE:To obtain a terminal equipment in which the restoration operation of the switching mode is not forgotten by changing and sending a dial signal for the kind when a prescribed key is read at automatic dialing to mix the dial mode. CONSTITUTION:A control section 9 reads a dial number data from a RAM 5 at automatic dialing and DP signal dialing, and when the read data is not an asterisk key *, a DP signal is sent. When a dial number data read from the RAM 5 is an asterisk key *, the control section 9 changes the mode into the PB signal mode and sends the result. When the operator hooks on the handset to turn off a hook switch or, the control section 9 restores the dial mode change.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a method for generating a dial signal when a predetermined key is input during manual dialing or when a predetermined key is read during automatic dialing. This relates to a terminal device that sends data after changing its type.

(Prior Art) There is a telephone as shown in FIG. 1 as a conventional telephone equipped with an automatic dialing function. In the figure, a dial key 1 includes a plurality of dial number keys, and when each key is pressed, electrical information corresponding to the key is output. The automatic dial key 3 is provided with a key for selecting a plurality of telephone numbers stored in a random access memory (RAM) 5. The hook switch 7 opens and closes in response to raising and lowering the handset. The dial mode selector switch 9 selects a dial pulse signal (hereinafter referred to as DP double signal) or a two-frequency selection signal (DTMF signal, hereinafter referred to as PB (button button) signal).

The on-hook transmission switch 11 captures the line with the line transformer 13 regardless of whether the handset is raised or lowered. Memory switch 15 sets automatic dialing memory mode. The RAM 5 stores telephone numbers and automatic dial key data corresponding to each telephone number. Backup battery 17
is a battery for retaining memory in the RAM 5 during power outages and the like. The outputs of each of the above elements are input to the input section 21 of the control section 19. The control unit 19 includes an input unit 21 and a calculation control unit (CC).
23, read-only memory (ROM) 25, output section 27
, consists of. The input unit 21 performs signal conversion, data processing, etc. of input data. The arithmetic control unit 23 performs arithmetic processing based on a program stored in the ROM 25. The output unit 27 outputs the calculation results of the calculation control unit 23 to each element.

The transmitter 29, the receiver 31, and the communication circuit 33 constitute a communication function section, and the communication circuit 33 sends and receives DC signals (call origination, call termination) to the exchange side via a wired transmission line for controlling the communication line network. AC signals (transmission/reception signals, dial tone DT1 visit tone BT, ring back tone RBT.

Howratone HW) is given and received. Futsukusui Sochi 3
5 generates the aforementioned DC signal. Relay drive circuit 37
drives dial pulse shunt contact 38. P.B.
A dial signal generation circuit 39 generates a PB multiple signal. The line transformer 13 is connected to a line 43 via a communication path switching contact 41 when making an on-hook call and sending out a PB signal. The shoot switch circuit 45 is a switch for erasing unnecessary parts of the reception amplification sound sent from the speaker 49 via the reception amplifier circuit 47, and eliminates excessive PB confirmation sound, dial pulse, quick sound, and line residual noise when making a call. It is something. The receiving amplifier circuit 47 amplifies the line signal. The communication path switching contact 41 is at the position shown by the dotted line when making an on-hook call and sending out a PB signal, and is at the position shown by the solid line when making an off-hook call and when on standby.

Next, the operation when making a telephone call using such a telephone will be explained according to the flowchart shown in FIG.

In the standby state (step 1001), the control unit 19 monitors input signals from the dial key 1, automatic dial key 3, hook switch 7, and on-hook transmission switch 11. Further, the communication path switching contact 41 is in the position shown by the solid line, the hook switch 35 is open, and the line loop is in an open state. When the handset is raised and the hook switch 7 is closed or the on-hook transmission switch 11 is turned on (step 1003), the control section 19 captures the line (step 1005). If dial tone DT is heard from the exchange (not shown) (step 100
7) The operator operates the dial mode selector switch 9 to select either the PB double signal or the DP double signal (step 1009). In the case of a DP double signal, the operator selects whether to perform automatic dialing (AD) or manual dialing (MD) (step 1011), and if automatic dialing is to be performed, the operator presses a key from automatic dialing key 3 (step 1013). The control unit 9 reads the dial number data stored in the RAM 5 from this key input (step 1015), and sends out the DP multiplication signal (step 1).
017) Repeat the above operations until the last dialed number is reached (step IQ 19). When the DP multiplication signal of the dial number is transmitted in this manner, a ring back tone RBT is returned from the exchange to the operator side (step 1021). When the other party answers (step 1023), the call starts (step 1025), and when the operator turns off the hook switch 7 or turns off the on-hook call switch 11 (step 1
027), the control unit 9 stores the last dial number in the redial memory of the RAM 5, steps 1029) releases the line, and steps 1031) ends the call (step 10).
33).

When the operator performs manual dialing (MD), he manually presses dial key 1 (step 1035). Then, DP is sent out (step 1037). After performing the above operations only for the dial number bone (step 1039)
, the process moves to step 1021.

When the operator selects the PB double signal with the dial mode selector switch and further selects automatic dialing (step 1041), the operator presses the automatic dial key 3 manually (step 1043), and the control unit 9 inputs the dial number data. The PB double signal dial number is read out from the RAM 5 (step 1045), and the PB double signal dial number is sent out (step 1047). When the above operation is performed only for the dial number (step 1049), the process moves to step 1021. In addition, in the case of manual dialing (MD), the operator manually presses the keys from dial key 1 (step 105).
1), the control unit 9 sends the PB double signal dial number (
Step 1053).

If the dial tone DT is not heard in step 1007, the call is terminated by receiving the visit tone BT (step 1055) or by putting down the handset or turning off the on-hook transmitting device (step 1057), and the process moves to step 1031.

(Problem to be Solved by the Invention) However, in such telephones, switching between the DP double signal and the PB double signal is performed by the dial mode changeover switch 9, so the dial modes cannot be mixed during automatic dialing or redialing. The problem was that it couldn't be done. Further, during manual dialing, there is a problem in that when switching the dial mode using the dial mode changeover switch 9, the operator may forget to restore the normal mode.

The present invention has been made in view of the above problems, and its purpose is to be able to mix dial modes,
It is an object of the present invention to provide a terminal device in which a switching mode recovery operation is not forgotten.

[Structure of the Invention (Means for Solving Problems)] In order to achieve the above-mentioned object, the present invention provides a means for making a call to the other party using a DP double signal, and a means for making a call to the other party using a PB double signal. , means for making a call by switching to the other method when a predetermined key appears in the dialed number of the other party when making a call to the other party using either of the above two means; The present invention is characterized by comprising means for restoring calls.

(Function) When the DP double signal is used to make a call to the other party and suppression of a predetermined key is detected, the other signal is used to make the call. When the call ends, the original signal will be used again to make the call.

(Example) Next, an example of the present invention will be described in detail. The hardware configuration of the telephone according to this embodiment is similar to that shown in FIG.

FIG. 2 is a flowchart showing the operation of this embodiment, but the explanation of operations similar to those of the conventional example shown in FIG. 3 will be omitted to avoid duplication, and operations that are different from the conventional example will be mainly explained.

When a DP signal is transmitted and automatic dialing is performed, the control unit 9 reads dial number data from the RAM 5 (step 1015). Step 20: Determine whether this read data is an asterisk key*.
16) If it is not the asterisk key *, a DP double signal is sent (step 1017), and if it is not the last dial data (step 1019), the process returns to step E015. If the asterisk key * is not detected in the data read from the RAM 5, a ringback tone RBT is sent from the exchange (not shown) (step 1021).

When the dial number data read from the RAM 5 is the asterisk key* (step 2016), the control unit 9 changes to the PB signal mode (step 201g),
The dial number data is read (step 202).
0) and transmits the PB double signal dial (step 202
2), until the last dialed number is reached (step 202).
4) Repeat the processing from step 2020 to step 2024.

When the mode is DP signal mode and manual dialing (MD) is performed, the operator manually presses the keys from dial key 1 (step 1035). The 1llJ control section 9 determines whether the manually entered key is an asterisk key* (step 2036), and if it is not an asterisk key*, sends a DP double signal (step 1037); if the dialed number is not the last, (Step 1039) Step 1035
Return to If there is no asterisk key * in the input dial number, the process moves to step 1021.

If the dial number entered manually from the dial key 1 is the asterisk key* (step 2036), the control unit 9 changes to the PB signal mode (step 203).g) When the dial key is input next (step 2040) Step 2042) sends the dial key information to be dialed as a DTMF signal, and similarly sends the PB key information up to the last dialed number.
Double signal dialing is performed (step 2044).

Also, when the operator lowers the handset and turns off the hook switch or turns off the on-hook switch (step 1027), the control unit 9 restores the dial mode change (step 2028) and stores the last dialed number in the dial memory (step 1027). 1029).

In this manner, in this embodiment, when the asterisk key * is detected while a DP multiplied signal call is being made, a PB multiplied signal dial is sent. Furthermore, the dial mode change is automatically restored after the handset is put down.

In this embodiment, the signal is switched when the asterisk key* is detected, but the signal may be switched when any other key is detected instead of the asterisk key*.

In addition, as a method for restoring the dial mode that has been automatically changed, in this example, call termination sequence information or specific dial number information is used, but it may also be carried out at a timing after the final dial is sent.

[Effects of the Invention] As described above, according to the present invention, it is possible to provide a terminal device that can mix dial modes and prevent users from forgetting to switch modes.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing the configuration of the telephone, FIG. 2 is a flowchart showing the operation of the telephone according to this embodiment, and FIG. 3 is a flowchart showing the operation of the conventional telephone. 1...Dial key, 3...Auto dial key, 9
...Dial mode changeover switch, 19...Control unit, 23...Calculation control unit, 25...ROM. Figure 2(e)

Claims (1)

[Claims] (1) means for making a call to the other party using a dial pulse signal; means for making a call to the other party using a two-frequency selection signal;
means for making a call by switching to the other method when a specific dial key is operated or specific dial number information is read out when calling the other party using one of the two methods; A terminal device comprising means for restoring the call to be made using the signal.