JPH09289540A - System for restricting recalling of communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the repetition of useless calling to an opposite party in a busy line in a short time by registering the opposite party in a busy state within the lapse of a fixed time after encountering the busy state and eliminating a connection processing even if recalling is executed to the object opposite party. SOLUTION: A busy line discriminating circuit 610, a comparing circuit 620, a timing circuit 630 and a restriction memory 640 are incorporated as a part of a control part 60. When the return of busy sound is received after the encounter with the busy line of the dialled opposite party, the busy line discriminating circuit 610 detects the busy sound so as to discriminate the busy line of the opposite party and the comparing circuit 620 compares a dialled telephone number with an encountered opposite party telephone number. The timing circuit 630 subtracts a time for restricting recalling to the telephone number which is encountered in the busy line. The restriction memory 640 stores the telephone number of the object to whom recalling is restricted for a fixed time after the encounter with the opposite party. Thus, useless traffic in a communication network is reduced.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a re-call restriction system for a communication terminal, which relates to the prevention of invalid traffic in a communication network. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a call recall regulation method for a communication terminal that regulates a call recall.

[0001]

2. Description of the Related Art As conventional techniques for preventing unnecessary calling, there are techniques disclosed in Japanese Patent Laid-Open No. 63-62468 and Japanese Patent Laid-Open No. 4-230167.

In the technique disclosed in Japanese Patent Laid-Open No. 63-62468, a facsimile machine detects a ringing tone or a busy tone, identifies that the other party does not respond because the ringing tone is long, and then recurs. It regulates calls to prevent unnecessary calls.

Further, the technique disclosed in Japanese Patent Laid-Open No. 4-230167 discloses that the destination of a call is a voice terminal such as a telephone by detecting a ringback tone, a response and a busy tone in a facsimile apparatus. It identifies or predicts and prohibits the redial function.

[0004]

Even if the dialed party is actually busy, it is expected that the other person's habit might not have been connected due to a factor other than "busy". It often makes a call to, which creates a large amount of invalid traffic and affects the communication network equipment. Especially this act
This is remarkable in a telephone terminal with redial because the user is not charged until he / she receives a call and answers.

Further, since the technique described in the above publication does not deal with the case where the other party is busy, it is ineffective as long as a person operates it.

[0006]

DISCLOSURE OF THE INVENTION The recurrence control system for a communication terminal according to the present invention aims to prevent the above-mentioned invalid traffic from occurring and suppress an unnecessary capital investment in the communication network.

According to the present invention, in a communication terminal used in a communication network, a busy identification means for detecting that the called party is busy and a telephone number of the called party when the called party is busy. And a regulated telephone number registration means for registering a timing value for a predetermined fixed time, and a timing measurement for subtracting the timing value registered for the regulated telephone number in 1 second cycles and canceling the registration when the timing value becomes 0. Means and a comparing means for comparing the telephone number dialed by the call with the telephone number registered in the regulated telephone number registration means at the time of making a call, and as a result of the comparison by the comparing means, dialing is performed. It is characterized in that the outgoing call is regulated when the telephone number registered in the regulated telephone number registration means coincides with the telephone number.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A recurrence control system for a communication terminal according to the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of an embodiment when the present invention is applied to a mobile terminal (mobile phone or the like) in mobile communication. In the figure, the part surrounded by the dotted line shows the standard circuit part of the terminal, and the receiving part 10 and the transmitting part 20 for performing radio wave communication with the wireless base station.
And an antenna duplexer 30, an audio unit 50 such as a microphone and a speaker, a signal processing unit 40 for performing digital and analog signal conversion, an operation unit 80 and a display unit 70 having dials and a display panel of the terminal, and further the entire terminal. It is composed of a control unit 60 that performs control.

On the other hand, the part relating to the present invention is a busy discrimination circuit 610, a comparison circuit 620, a timing circuit 630 and a regulation memory 640 incorporated as a part of the control unit 60.
It consists of.

The busy discrimination circuit 610 is a circuit for detecting the busy tone and discriminating the busy state of the other party when the busy party of the dialed party is encountered and the busy tone is returned. The comparison circuit 620 is a circuit for comparing a redialed telephone number, which will be described later, with a destination telephone number encountered during a call. The timing circuit 630 is a circuit that subtracts the time for restricting the recalling of a telephone number encountered during a call. The restriction memory 640 is a circuit that stores a telephone number that is encountered while talking on the other end and that restricts recalls for a certain period of time.

The operation of the terminal thus constructed will be described with reference to FIG.

First, the regulation memory and the timer value will be described. The restriction memory is a memory for storing the dialed telephone number when the called party is busy, and the timer value of the restriction time is also stored at the time of storage. This timer value is a timing circuit 63 that moves in 1 second cycles.
It is subtracted every 1 second by 0, and when it reaches 0, the regulation is released and the stored telephone number is deleted (s20 to s2).
2).

The operation when the dialed party is busy will be described.

Since the call is not made immediately after the call is made (s1) (s2: N), the normal call and connection processing is performed (s5, s6). When the caller goes on-hook and enters a call termination operation, it is determined whether the termination was a normal termination or was encountered while talking and terminated (s7). When a busy message is encountered, the busy signal identifying circuit 610 detects and identifies the busy tone, and therefore the call restriction setting process (s8) is performed.

In the call restriction setting process, the number dialed in the call is recorded in the restriction memory as the restricted telephone number, and the timer value of the time during which the re-call is restricted is also set (for example, 30 seconds). .

When the call regulation setting process is completed, the call termination process is performed to recover. At the end of a normal call, call termination processing is performed without performing call regulation setting processing.

Next, the operation when the call restriction is set will be described.

When a call is made (s1), the restriction memory is referred to, whether or not there is a telephone number set in the restriction memory, and whether or not the call is restricted. If it is restricted, the dialed telephone number is registered in the restriction memory. It is determined whether the comparison circuit 620 described above is present or not.
To compare and confirm (s2: Y, s3). If the dialed number is registered in the restriction memory, the call is restricted and a busy tone is returned to perform a restriction process. Such regulation is performed until the timer value set in the regulation memory in the timing circuit is subtracted and reaches 0, and when the timer value becomes 0, the regulation is released by the timing circuit and the subsequent recurrence occurs. The call becomes possible.

Even during call restriction, if the dialed telephone number does not match the number registered in the restriction memory, normal call connection processing is performed.

Although the present invention has been described above as a mobile communication terminal such as a mobile phone, it goes without saying that the present invention is applied to a normal wire telephone terminal.

[0022]

As described above, according to the recalling control system of the communication terminal of the present invention, the other party who does not have a certain period of time after being encountered during the call is registered as the control target.
Even if the target party is called again, the connection process is not performed. Therefore, it is possible to prevent unnecessary calls from being repeatedly made to the busy party within a short time, so that the invalid traffic in the communication network can be reduced and the investment of extra network equipment can be suppressed. Produce an effect.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a mobile terminal to which a recalling restriction method for a communication terminal of the present invention is applied.

FIG. 2 is a flow chart for explaining the operation of the recalling restriction system of the communication terminal of the present invention.

[Explanation of symbols]

 1 Mobile Terminal Standard Function Section 10 Reception Section 20 Transmission Section 30 Duplexer 40 Signal Processing Section 50 Audio Section 60 Control Section 70 Display Section 80 Operation Section 610 Busy Discrimination Circuit 620 Comparison Circuit 630 Timing Circuit 640 Control Memory

Claims (1)

[Claims] 1. In a communication terminal used in a communication network, busy identification means for detecting that the called party is busy, and when the called party's busy is detected, the called party's telephone number and the telephone number are stored in advance. Regulated telephone number registration means for registering a timing value for a fixed period of time, and timing measuring means for canceling the registration when the timing value becomes 0 by subtracting the timing value registered for the regulated telephone number in 1 second cycles. And a comparison means for comparing the telephone number dialed by the call with the telephone number registered in the regulated telephone number registration means at the time of making a call, and as a result of the comparison by the comparison means, the dialed A re-call restriction system for a telephone terminal, characterized in that when the number matches a telephone number registered in the regulated telephone number registration means, the call is regulated.