JPS62286348A - Dial control system for telephone set with redial function - Google Patents

Abstract

PURPOSE:To facilitate the operation by providing a specific number storage means, a pause decision means for identifying a specific number or the like at the time of redialing and a pause insertion means and inserting a pause as required automatically thereby eliminating the need for a pause input by a caller at each call. CONSTITUTION:In inputting an external line access number and a telephone number of a called party from a dial input terminal 30, the external line access number and the dial number are stored in memories A2, B3. When the redial number is inputted to the memory B3 and a pause decision section 12 from a redial input terminal 31, the head of the external line access number is extracted first sequentially and fed to the pause decision section 12. When it is decided that the section 12 is a head part of a redial input memory A2, whether or not the head is coincident completely with the number registered on a specific number storage section 11 in advance is decided, and in case of coincidence, a pause insertion request signal P1 is sent to a pause insertion section 13.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention (Technical Field of the Invention) The present invention is directed to one of two different switching networks, such as a private branch exchange membrane Oi (hereinafter referred to as rPBXJ) and a general public switching network. The present invention relates to a dial control method for a telephone when making a call to another party, and particularly relates to a dial control method for a telephone with a redial function.

(Prior art and its problems) In recent years, the dialing function used in this type of telephone terminal is such that if the called party is busy at the time of the first call and then tries to call again, It is extremely convenient because there is no need to re-enter the entire number, and calls can usually be made by simply pressing a redial button.

Normally, when calling a public switched network subscriber from a telephone in a PBX, the PBX exchange calls the public switched network subscriber line (
After dialing the outside line access number (usually a one-digit number, e.g. "O") to connect to the outside line (hereinafter referred to as the "external line"), the PBX telephone was connected to the outside line.61! After receiving a confirmation (usually a continuous 400 Hz tone "two"), the callee dials the called party's phone number. Here, in order to instruct to wait for a time until connecting to an outside line when redialing, conventionally, a pause code (for example, ■) was inserted after the outside line access number during the first dial operation to wait for the outside line access to be completed. I needed to. This pause code is designed to transmit the telephone number of the other party after a pause period of usually about 3 seconds after dialing an outside line access number.

FIG. 1 is a block diagram of a dial control circuit in a conventional telephone with a redial function, in which 1 is a memory section for storing dial signals from the telephone, 2 and 3 are first-in, first-out memory A (hereinafter referred to as first-in first-out memory A) in memory section 1. ,"memory(
A)) and first-in, first-out memory B (hereinafter referred to as “
4 is a pause code detection unit for detecting a pause code, 5 is a pause code removal unit for removing the pause code, and 6 is a public network exchange (not shown).
7 is a N07 circuit that outputs "1" when not paused; 8 is an end signal of the dial signal generator 6; E(!:NOT
An AND circuit for calculating the logical product of the circuit 7; 9 a delay pulse generator for providing a delay of about 3 seconds when a pause code is detected; 10 an AND circuit 8 and a delay pulse generator 9;
30 is a dial signal input terminal, and 31 is a redial signal input terminal.

When the caller picks up the handset of the telephone (off-hook) and performs a dial operation, the dial input is input into the first-in, first-out memory (A) 2 of the memory section 1 and also into the first-in, first-out memory (B) 3.

When a redial input is performed, the contents of the memory (B) 3 are read out and manually input again to the memory (A) 2, so that a redial operation can be performed with a simple input. The write signal W and the read signal R of the memory (A) 2 are asynchronous, and by changing the timing of the read signal R, generation of the redial signal and insertion of a pause are controlled.

Next, the flow from reading out the memory (A) 2 to generating a dial signal will be explained.

Immediately after the code is input to the memory (A) 2, the first-in code is taken out and input to the pause code detection section 4 and the pause code removal section 5. In the conventional system, the pause code is manually entered by the caller as part of dialing, but if the extracted pre-input code is not a pause code, it is immediately sent to the dial signal generator 6 to generate a dial signal. . When the generation of the dial signal is finished, the output end signal E is ANDed with the output of the non-pause selection circuit N0T7, and further passed through the logical sum 0R10 and stored in the memory (A)2. The next pre-loaded code is read out.

On the other hand, if the code read from the memory (A>2) indicates a pause, the pause code output unit 4
A pause signal P is output from the pause code removal section 5, and the code is removed by the pause code removal section 5, so that no dial signal is generated.

Further, the pause signal P is sent to the delay pulse generator 9,
A pulse is generated after a predetermined time (pause time), passes through the ○R circuit 10, and reads out the next first-in code stored in the memory (A) 2, so there is no difference between the dial numbers. This means that a pose has been added.

In this way, conventionally, a pause was directly inserted and redial was performed from within the PBX. However, this method has the drawback that, regardless of whether there is a possibility of redialing, the next redialing operation cannot be performed unless an unnecessary pause is inserted during the first dialing.

(Objectives and Features of the Invention) The present invention has been made to solve the above-mentioned drawbacks of the prior art, and it is an object of the present invention to provide a dial control method for a telephone with a redial function that does not require human power to pause for each dial operation. With the goal.

The features of the present invention include a specific number storage means for storing the first number sequence (hereinafter referred to as a "specific number") such as an outside line access number, and whether or not a pause is required to identify the specific number etc. during redial operation. A pose determining means for determining whether a pause is necessary, and a pause inserting means for inserting a pause when the pose determining means determines that a pause is necessary. The reason is that poses are automatically inserted depending on the situation.

(Structure of the invention) The present invention will be described in detail below using the drawings.

In the following description, parts that are the same as those in the conventional configuration are given the same numbers to avoid redundant description.

FIG. 2 is a block diagram showing an embodiment of a dial control system for a telephone with a 1f dial function according to the present invention. In the figure, 1 is a memory unit containing a first-in, first-out memory (A) 2 and a first-in, first-out memory (B) 3, and 6 is a dial signal generator that generates dial pulses or pushbutton signals to a PBX exchange (not shown). 11 is a specific number storage unit for pre-registering an outside line access number; 12 is a specific number storage unit for determining whether the first dialed number from memory unit 1 satisfies a certain condition and requires a pause; The pause determination section 13 determines the passing time 'M' of the end signal E output from the dial signal generation section 6.
When the pause determination unit I2 receives the pause request signal P1 in order to perform t'lE, it sends the end signal E to the memory (A) 2 after the pause time corresponding to the signal P, while receiving the pause request signal P1. 32 is a specific number input terminal used to store a specific number.

In the following description, the specific number storage unit 11 which is a feature of the present invention will be described.
, the pause determination section 12 and the pause insertion control section 13 will be explained in particular detail.

(1) Specific number storage unit 11 The specific number storage unit 11 consists of a random access memory (RAM) that can be input from a button, a read-only memory (ROM) that can be reset by changing the chip, a mechanical dip switch, etc. . To set a specific number, for example, if you set it from the button, if the outside line access number is "0", it will be set as "0".
” before and after the asterisk signal (*) or Igeta (
#) Manually by a combination of signals, etc., or a specific number set command ■ consisting of a dedicated button.

In this way, the specific number storage section 11 stores in advance one or more outside line access numbers of one or more digits.

(2) Pose determination unit 12 The conditions for determining that a pause is necessary are as follows.

■ There is a signal from the redial input terminal 31.

■It must be the first part of the number output from memory section 1.

- Losing a match against the number registered in the specific number storage section 11.

When the memory (B) 3 of the memory section 1 outputs an output and the above conditions are satisfied, the pause determination section 12 outputs a pause request signal PI.・If the external line access number has multiple digits, such as 2 or 3 digits, check the number registered in the specific number storage unit 11 digit by digit and enter the last registered number (3 digits). It is only necessary to insert the pause request signal P1 for the first time when the number (up to the third digit) is defeated.

(3) Pause insertion control unit 13 The pause insertion control unit 13 delays the end signal E from the dial signal generation unit 6 by the pause time only when the pause request signal P is sent from the pause determination unit 12, and stores it in the memory (
By transmitting the information to A)2, the transmission of the next dial number from memory (A)2 is delayed. Therefore, the pause request signal P.

If not, the end signal E is sent from the dial signal generator 6.
By sending it as it is to the memory (A) 2, the next dial number is sent from the memory (A) 2, and conversely, when the pause request signal P is detected, the next dial number in the memory (A) 2 is determined in advance. Sent with a delay of the pause time.

Next, the operating procedure according to the present invention will be explained.

■External line access number and telephone number of the other party (called party) (
When a dial number) is input from the dial input terminal 30, the outside line access number and the dial number are stored in the memory (A) 2 and memory (B) 3. The memory (A) 2 is immediately read out one after another, and a dial signal is sent to the exchange via the dial signal generator 6 to call the called party. However, if the other party is busy or absent and cannot be connected, hang up the handset (on-footer).

■Perform a redial operation to call the same called party.

From the redial signal or the redial input terminal 31 to the memory (
B) 3 is input to the pose determination unit 12.

(2) The contents (dial number) of the memory (B) 3 are read out by the redial signal and re-input into the memory (A) 2.

(2) Since the external line access number and dial number mentioned in (2) have been re-entered into the memory (A) 2, the first part of the external line access number is sequentially retrieved according to the first-in, first-out principle.

■The extracted first code is supplied to the dial signal generator 6, where it is converted into a dial signal and output.
The data is supplied to the pose determination section 12.

When the dial signal generator 6 sends out the dial signal, after a predetermined pause time (dial pulse 10 pulses/
In the second method, after 600 ma), the end signal E is sent to the pause insertion control section 13.

■On the other hand, the pose determination unit 12 stores the redial human power 1 memory (
A) When it is determined that the first part is from 2, the first part that has been read so far is stored in advance in the specific number storage unit 11.
It is determined whether the number completely matches the number registered in , and if they match, a pause insertion request signal P1 is sent to the pause insertion unit 13.

(2) When the pause insertion section 13 receives the pause insertion request signal P, it adds a predetermined pause time delay to the end signal E and then sends it to the memory (A) 2. On the other hand, if the pause insertion request signal P is not received, the end signal E is immediately passed through and sent to the memory (A) 2.

(2) When the memory (A) 2 receives the end signal E, it sends out the next number (code) and repeats the steps after (2). However, since the pause determination unit 12 determines that the code after sending the pause insertion request signal P1 is not the first code, it is assumed that the read code (sequence) is not registered in the specific number storage unit 11. Even if a part of the number matches the current number, the pause insertion request signal P is not sent. At this time, the pause insertion unit 13 does not give a pause time to the end signal of the dial signal and allows the dial signal to pass through as is.

These steps ① to ② are shown in FIG. Therefore, the present invention can be realized without using the circuit configuration shown in FIG. 2 by program-controlling the above-described procedure using a microcomputer or the like.

As described above in detail, the present invention allows a caller to perform a redial operation without having to perform a pause operation each time a call is made by registering a predetermined number in advance.

Although the above explanation takes as an example the case of connecting from an extension telephone to an outside line, the same applies to the case of making an instant international dial call from a general subscriber's telephone, that is, when the exchange system of the public network is different. can. For example, when making an international call from within Japan to an immediate destination, the access number is "001" and the pause time is approximately 6 seconds. Therefore, “00” is stored in the specific number storage unit 11.
1” and its pause time “6 seconds”, and then set it to “0”.
01'' is detected by the pose determining unit 12, a new P2 signal is sent as a pause request signal to the pause inserting unit 13, and when the pause inserting unit 13 is P, the signal is output for about 3 seconds, for example.
When using the P2 signal, a pause time of about 6 seconds should be given.

Further, in the above description, the pause time is inserted only during the redial operation, but if the redial input signal, which is the insertion condition for the pause determination section 12, is excluded, the pause time can be inserted from the first dial operation. However, when dialing for the first time, after lifting the handset of the telephone,
After checking the dial tone sent from the PBX, dial the outside line access number, and after checking the dial tone sent from the exchange in the public network, dial the other party's phone number. This method, that is, the method of dialing while checking the dial tone, has the advantage that dialing can be completed more quickly than automatically inserting a fixed pause time (for example, 3 seconds), so here we will only use redialing. Insert the pause time.

Further, in the above explanation, the end signal E is obtained from the dial signal generating section, but it is also possible to calculate it from the output from the memory (A) 2. That is, the end signal E
The occurrence time of can be uniquely determined by the output time of the dial number from memory (A) 2 and the dial number (however, in the button dialing method, only the output time of the dial number). It is also possible to directly calculate the end signal E from the output from the .

Furthermore, after sending out the dial signal, the dial signal generating section 6 sends the end signal E to the pause insertion control section 13 after a predetermined pause time. The end signal E is sent to the pause insertion control unit 13, and the pause insertion control unit 13 delays the end signal E by the pause time when the pause request signal P1 is not received, and delays the end signal E by the pause time when the pause request signal P1 is being received. The end signal E may be delayed by the sum of the pause time and the pause time.

Furthermore, in the above explanation, the outside line access number and the telephone number of the other party, that is, the dial code consisting only of numbers, is output from the memory section 1 and sent directly to the dial signal generating section 6, but as shown in FIG. As shown in FIG.
Once converted into a pause code (for example, ■), this is inserted immediately after the outside line access number (i.e., immediately before the other party's telephone number), and the dial code containing the pause code (i.e., manually based on the conventional method) is (The same format as the one created manually) may be automatically created. Further, the dial code constructed in this manner is processed according to a circuit similar to that in FIG. 1, as shown in FIG. 4, and a redial operation can be performed from within the PBX.

(Effects of the Invention) As described above, the present invention registers a predetermined access number and determines a dial number based on the registered number, thereby automatically inserting a pause time during a redial operation. Since it is possible to call the other party,
This eliminates the need for the caller to enter a pause each time a call is made, which is highly effective.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a dial control system of a conventional telephone with a redial function, FIGS. 2 and 4 are block diagrams showing an embodiment of a dial control system of a telephone during a redial operation according to the present invention, and FIG. FIG. 3 is a diagram showing an operating procedure according to the present invention. 1...Memory part, 2...First-in, first-out memory A
, 3... First-in first-out memory B, 4... Pause detection section, 5... Pause code removal section, 6... Dial signal generator, 7... NOT circuit, 8... A
ND circuit, 9...delay pulse generation section, 10...
OR circuit, 11... specific number storage section, 12...
Pose determination unit, 13... Pause insertion control unit, 14
...Pause code insertion section, 30...Dial input terminal, 31...Redial input terminal, 32...Specific number input terminal.

Claims (3)

[Claims] (1) Redialing where a telephone connected to the switching equipment of a single switching network temporarily stores the dial number used to make a call, and when a redial call is performed, automatically makes a call by reading out the stored dial number. In a dial control system for a telephone with functions, when the calling operation is performed for a subscriber of another specific switching network connected to the switching equipment of the one switching network, the specific switching network is specified in advance. A specific access number is stored, and when it is determined that the specific access number is included in the read output of the stored dial number when the redial call operation is performed, the access number is A pause time required by the switching equipment of the one switching network is inserted between the sending of the signal and the telephone number signal of the subscriber of the specific switching network, so that an automatic call is made by reading the dialed number. A dial control method for a telephone with a redial function. (2) A redial function according to claim 1, wherein the switching equipment of the one switching network is a private branch exchange equipment, and the other specific switching network is a domestic public switched network. Telephone dial control method. (3) A dial control system for a telephone with a redial function, characterized in that the switching equipment of the one switching network is a switching equipment of a domestic public switched network, and the other specific switching network is an international switching network.