JPH01212946A - Telephone set with automatic dialing function - Google Patents

Abstract

PURPOSE:To improve the operability of a telephone set by discriminating whether a call is for a general individual subscriber or a PBX extension line based on the detection of a call progress tone(CPT), and simultaneously, discriminating whether the first number of a dial number is the number snowing line wire connection or not, and controlling the transmission of a dial signal. CONSTITUTION:When the telephone set is used as a general individual subscriber telephone set, CPT (400Hz continuous tone) is received by allowing a talking circuit 5 to be turned into an operating state, and this CPT is detected by a CPT detection circuit 21, and it is discriminated to be for the general individual subscriber by this CPT detection. In case of being used as a PBX extension line telephone set, CPT (400Hz-0.25sec ON/OFF) is detected by the CPT detection circuit 21, and it is decided to be for the PBX extension line by this CPT detection. It is detected by a zero detection circuit 20 that the first number of the dial number is other than the number '0' to show the line wire connection, and it is discriminated that the dial number is extension connection by this detected output.

Description

[Detailed description of the invention]

<Industrial Application Field> The present invention relates to an automatic dialing telephone that can be used both for -FI single subscription and for PBX extension. <Prior art> Conventionally, when this type of telephone with automatic dialing function is used for general single subscription, it is sufficient to send out dialing signals in sequence in response to dialing operations, but when used as a telephone for PBx extension When making an outside line connection from this telephone, after sending the number "0" indicating an outside line connection, the remaining dial signal (called party number) is sent after a second dial tone is detected or a predetermined time of 3 seconds or more has elapsed. need to be sent. Therefore, conventionally, as seen in Japanese Patent Publication No. 62-32671, an identification switch was provided to switch between -m single subscription and PBX extension, and the status of this identification switch was determined to determine the following: It was performing a dialing operation. That is, the state of the identification switch is detected by the microprocessor or other means to determine whether the telephone is being used for a -m single subscription or for a PBX extension. When it is determined that the -m is used for single subscription, dialing signals are sequentially sent out in response to the dialing operation. When it is determined that the PBX is to be used as an extension line, it is first determined whether the first number of the dial number is "0" indicating an outside line connection. If the first number of the dialed number is not "0", it is an internal line connection, so dial signals are sent out in sequence, and if the first number is rQJ, it is an external line connection, so this "
After transmitting "O" as a dial signal, the remaining dial numbers are sequentially transmitted after a second dial tone is detected or a predetermined time of 3 seconds or more is detected. <Problems to be Solved by the Invention> Therefore, conventional telephones of this type require an identification switch to switch between general single subscription use and PBX extension use. If the setting of this identification switch is incorrect, there is a problem in that incorrect dialing may occur. Means for Solving the Problem> The structure of the present invention for achieving the object will be explained with reference to FIG. 1 showing a typical embodiment. In a telephone with an automatic dialing function, the telephone has a means for automatically sending a dialed number stored in a memory means.
means for detecting a tone to determine whether it is for a general standalone subscription or a PBX extension; means for determining whether the first number of the dialed number is a number indicating an outside line connection; When the progress tone detection indicates a general standalone subscription, the above dialed numbers are sequentially sent as a dialing signal, and the above call progress tone detection indicates a PBX extension, and the first number of the dialed numbers indicates an external line connection. , after sending the first number of the above dialed number as outside line acquisition number 48,
After detecting a second call progress tone or after a predetermined period of time has elapsed, the remaining numbers are sequentially sent as a dialing signal, and when the above call progress tone detection is PB.
When the dial number indicates an X-extension line and the first number of the dial number is a number other than the number indicating an outside line connection, the control means sequentially sends the dial number as a dial signal. . Function> When used as a general standalone subscription telephone, a call progress tone (hereinafter referred to as CPT) (400 tlz continuous tone) is emitted by the two-talk circuit (5) being activated, and by this CPT detection. , it is determined that it is for general single subscription. Based on this discrimination output, the dial number is sent out sequentially as a dial signal in both local and long distance calls. When used as a PBX extension telephone (extension): CPT (40011z - 0.25 seconds) 0N10FF) is detected, and it is determined that the line is for a PBX extension. In the next step, it is detected that the first number of the dialed number is a number other than "0", which indicates an external line connection, and from this detection output, it is determined that the dial subnumber is an internal line connection. Based on this discrimination output, dial numbers (extension numbers) are sequentially sent out as dial signals. When used as a PBX extension telephone (external line): After determining that it is for a PBX extension by detecting CPT (400Hz-0, 25 seconds 0N10FF), the next step is to change the first number of the dial number to It is detected that the number r□ indicates an outside line connection, and based on this detection output, it is determined that the dialed number is an outside line connection. This discrimination output determines whether the first number of the dial number is "0".
” is sent as an outside line acquisition signal, and a second CPT is detected or a wait state of 3 seconds or more occurs. In the next step, second CPT (400Hz continuous sound)
After detection or after 3 seconds or more have elapsed, the remaining dialed numbers are sequentially sent out as dialing signals. That is, by CPT detection, whether it is for general single subscription or PB
In addition to determining whether the dialing code is for an Sent out. <Embodiment> FIG. 1 shows a typical embodiment of the present invention, showing a dialer and its peripheral circuits. (1m), (II)) are the first and second connection terminals with the telephone line, (2) is a diode bridge circuit, and (3) is the dialer (10) that connects the dial signal to the first terminal of the telephone line.
, second connection terminal (1m>, output circuit to send to (11+), (4) is power supply circuit of dialer (10), (5
) is a telephone call circuit, and (6) is a keyboard. The dialer (10) includes a memory circuit (12) that stores dial signals such as telephone numbers in response to dial operations on the keyboard (6), and sends out pulse signals corresponding to the stored dial signals. It also includes a timing circuit (15) that supplies timing signals to the memory circuit (12) and other circuits. The dial signal from the keyboard (6) is sent to the dialer (10
) through the key input circuit (11) in the memory circuit (12).
) and stored in response to a write command signal from the system control circuit (14). This dial signal is then read out by a read command signal from the system control circuit (14) and sent out through the output circuit (13). The system control circuit (14) receives a call progress tone (hereinafter referred to as CPT) from the communication circuit (5).
The CPT detection output detected by the PT detection circuit (21) and the zero detection circuit (20) determine whether the first number of the dial number from the key input circuit (11) indicates an outside line connection and is number [0]. The zero detection output detected by is input. Then, the system control circuit (14) outputs a read command signal according to the combination of the CPT detection output, CRT detection output, and zero detection output, and the memory circuit (12)
) Other circuits operate as shown in flowchart 1- of FIG. When used as a general stand-alone subscription telephone: The key input circuit (11
) is stored in the memory circuit (12) by a write command signal from the system control circuit (14). On the other hand, as the communication circuit (5) becomes operational, C
PT (400Hz continuous tone) is received, this CPT is detected by the CPT detection circuit (21), and this CPT
By detection, it is determined that it is for general single subscription. A read command signal is output from the system control circuit (14) in response to this discrimination output, and the stored dial signals are sequentially read out from the memory circuit (12) and sent out by this read command signal. For example, for a local call, the dialing operations are (3), (
1), (1), (2), (1), (2), and (1), and dial signals corresponding to these dial operations are sequentially sent out. The same applies to long distance calls, for example dial operations (0), (3), (3). Dial signals corresponding to ('l), (1), (2), (1), (2), and (1) are sequentially sent out. When used as a PNX extension telephone (extension): Dial signals corresponding to dial operations on the keyboard (6) are stored in the memory circuit (12) in the same way as when used as a general single subscription telephone. be. Cr'T (400Hz-0, 25 seconds 0N10FF') is detected by the CPT detection circuit (21), and this CRT
Upon detection, it is determined that it is for a PBX extension. In the next step, the zero detection circuit (20) detects that the first number of the dialed number is a number other than rQJ, which indicates an external connection, and this detection output determines that the dialed number is an extension connection. Ru. A read command signal is output from the system control circuit (14) in response to this discrimination output, and dial signals are sequentially sent from the memory circuit (12) in response to this read command signal. For example, if you have an extension connection, the dial operations are (2), (
1), (0), [:2), and dial signals corresponding to these dial operations are sequentially sent out. When used as a PBX extension telephone (external line): CPT (400Hz-0, 25 seconds 0N10r; 'r')
is detected by the CPT detection circuit (21), and this CP
By T detection, it is determined that the line is for a PBX extension. In the next step, the zero detection circuit (20) detects that the first number of the dialed number is a number r OJ indicating an outside line connection, and from this detection output it is determined that the dialed number is an outside line connection. By this discrimination output, the first number of the dial number is sent as an outside line acquisition signal, and the second CPT is detected or
Waits for more than a second. In the next step, second CPT (400H2 continuous tone)
is detected by the CPT detection circuit (21), or the system control circuit (
14) outputs a read command signal, and in response to this read command signal, the remaining dial signals are sequentially sent from the memory circuit (12). For example, if you are connected to an outside line, the dial operation is (0),
(0), (7), (5), (3), (1), (1), (
2). (1), (2), (1) are performed, but first, the first number of the dialed number is

[0] is sent and the second C
After PT is detected or more than 3 seconds have passed, the remaining number (0),
I Near ), (5), (3), (1), (1), (2)
. (1), (2), and (1) are sent out in sequence. FIG. 3 shows another embodiment of the present invention in which an automatic dialing function that can be used commonly for general single subscriptions and for PBX extensions is added. When a normal dialing operation is performed as a telephone for general single subscription / PBX extension in an off-hook state with the handset lifted, a dialing signal (Dl) corresponding to the dialed number is sent to the key input circuit according to key operations on the keyboard (6). (11) is stored in the memory circuit (12) and the glue dial memory (12m). Then, as explained in the previous embodiment, CPT detection determines whether the dial number is for a general single subscription or a PBX extension, and also determines whether the first number of the dial number is for an outside line connection. , A dial signal (Dl) corresponding to the dial number is generated based on these discrimination outputs.
) is automatically sent. At this time, the dial signal (mouth 1) is retained even when the handset goes on-hook after the end of the call, and is erased by the next dialing operation. Next, the case of speed dial operation will be explained. First, the phone number including the area code is memorized while the handset is on-hook. First, press the memory control key (
M) and then enter the phone number, then press the memory control key (M) to specify the location of the repertoire memory (121+) of the memory circuit (12).
and enter the location number. For example, after a dial signal (Dl) corresponding to a telephone number (0753112121) is once stored in the redial memory (12m) as − set data, the repertoire
A copy is stored in the location numbered [01] in the memory (12b). In this way, you can add up to 20 other phone numbers.
a predetermined location in the repertoire memory (12b) up to the set

It is stored in [00] to [19]. Next, when performing a speed dial operation using the telephone number stored in this repertoire memory (12b), for example, the telephone number stored in the above location [01] of the repertoire memory (12b) is read out. Assuming this case, the one-touch key [0
1] or press the memory control key (
When the keys (0) and [1] are operated in this order, the dial signal (DI) corresponding to the telephone number (0753112121) is read out from the location of number [01] in the repertoire memory (12b), and this dial Signal (nl
) is stored in the beam dial memory (12m). . This redial memory (12a) retains this dial signal (old) and the corresponding dial signal (
D2) is sent. In this speed dial operation, as in the previous normal dial operation, the dial signal (Dl) stored in the redial memory (12m) is retained as is even if the line is not connected to the other party. According to this embodiment, in addition to the automatic dialing function that can be used in common for general single subscriptions and PBX extensions in the embodiment shown in FIG. This makes it easier to dial when the line cannot be connected to the other party due to a busy call, or when trying to communicate again because the desired party is not present.Also, when you memorize the phone number in advance, you can easily dial the number. This has the effect of not destroying the data that has already been stored when you notice this and cancel the key operation midway through. Although the embodiments considered to be representative of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments, and the present invention is not necessarily limited to the structures of these embodiments, but includes the constituent elements defined in the present invention and the objectives defined in the present invention. It can be implemented with appropriate modification within the scope of achieving the following effects. <Effects of the Invention> As is already clear from the above description, the present invention uses CβT detection to determine whether the dial is for a general single subscription or a PBX extension, and the first number of the dial number indicates an outside line connection. Since the system determines whether the telephone is a number or not and controls the transmission of dial number 13 based on these determination outputs, there is no need for an identification switch as in Japanese Patent Publication No. 62-32671. There is no need to install an identification switch, and there is no need to make incorrect dials due to incorrect settings of the identification switch.Furthermore, when used as a PBX extension telephone and connected to an outside line, dialing can be continued without being aware of switching to an outside line. Since it can be operated, the usability of the phone is improved.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of a typical embodiment of a telephone with automatic dial Ia function of the present invention, FIG. 2 is a diagram showing a flowchart of the same automatic dial sending operation, and FIG. FIG. 3 is a diagram showing the configuration. In the figure, (12) is a memory circuit, (14) is a system control circuit, (20) is a zero detection circuit, and (21) is a CRT detection circuit.

Claims (1)

[Claims] A telephone with an automatic dialing function, which has a memory means for storing a dialed number and a means for automatically sending out the dialed number stored in this memory means, detects a call progress tone and determines whether it is for general single subscription or PBX.
means for determining whether the dialed number is for an internal line; means for determining whether the first number of the dialed number is a number indicating an external line connection; and when the call progress tone detection indicates that the dialed number is for a general single subscription; The above dialed numbers are sequentially sent as a dial signal, and when the above call progress tone detection indicates a PBX extension and the first number of the above dialed numbers is a number indicating an outside line connection, the first number of the above dialed numbers is sent as an outside line acquisition signal, and after a second call progress tone is detected or after a predetermined period of time has elapsed, the remaining numbers are sequentially sent as a dial signal, and when the above call progress tone detection is PB.
an automatic control means for sequentially transmitting the dialed numbers as a dialing signal when the first number of the dialed number is a number other than the number indicating an external line connection; Telephone with dial function.