JPH03173260A - Dialing restriction system - Google Patents

Abstract

PURPOSE:To prevent induction of redialing and to suppress congestion of subscribers by providing an incoming number discrimination section, a busy discrimination section, a caller subscriber discrimination section, an announcement section and a call control section or the like. CONSTITUTION:In the case of dialing from a subscriber 11 to a subscriber 12 whose traffic rate is high, an incoming call number dialed from the subscriber 11 is inputted to an incoming number discrimination section 6 via an exchange network section 1 and a register section 8 and a busy discrimination section 4 and a number storage section 5 are referenced. As a result, when the reception number of times is stored for a prescribed value or over and it is discriminated to be busy, it is informed to a call control section 2 and an announcement section 10 sends a message representing that restriction of dialing is desired because the subscriber 12 is a subscriber whose traffic rate is high. In the case of dialing from the subscriber 12, the announcement section 10 sends a message representing that restriction of dialing is desired because the subscriber 12 is a subscriber whose traffic rate is high via a caller subscriber discrimination section 7. That is, the call to the subscriber whose traffic rate is high is restricted through the announcement connection and the induction of redialing is prevented by connection of an incoming call with priority or the like thereby suppressing congestion of subscribers.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a call restriction method for restricting calls from high busy rate subscribers who have a high probability of being busy.

[Conventional technology]

In the conventional call restriction system, as a countermeasure against overloading the common control unit or central processing unit of the exchange, outgoing calls from general subscribers are connected to the announcement machine without distinction, and the talkies are
Depending on the service, calls by subscribers are regulated.

[Problem to be solved by the invention]

The conventional call restriction method described above does not selectively suppress calls from subscribers with a high busy rate, so even if a call is received from this subscriber, the call is often busy, resulting in repeat calls. However, there is a risk of subscriber congestion.

SUMMARY OF THE INVENTION An object of the present invention is to provide a call restriction method that can prevent re-calls and suppress subscriber congestion.

[Means to solve the problem]

The transmission restriction method of the present invention is based on the storage program filJl1.
a first determining means for determining whether or not a called subscriber is busy; and a first determining means for storing a busy called number when the called subscriber is busy; A storage means for storing the number of receptions corresponding to the number of calls is compared with the dialed incoming number and the busy incoming number to determine whether the call is to a high busy rate subscriber with a high probability of being in a busy state. a second determining means; a third determining means for comparing the subscriber number of the calling subscriber and the busy-time incoming call number to determine whether the subscriber is the high busy rate subscriber; a timer for generating an interrupt signal; and the timer.

updating means that is activated by the second and third determining means and updates the information stored in the storage means; When the determining means of No. 3 detects a call from one of the high busy rate subscribers, a message is sent to the calling subscriber.

Further, the updating means is configured to delete the information in the storage means when the second determining means determines that the high busy rate subscriber is available.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

Referring to FIG. 1, which shows an embodiment of the present invention, the outgoing call restriction system consists of a switching network section 1 that provides a communication path, a call control section 2 that controls connection and disconnection of calls, and a subscriber 11.
12 and the incoming trunk 13; a busy determination unit 4 that determines whether the subscriber of the received called number is busy; A number storage unit 5 stores the number of incoming calls during busy times and stores the number of receptions corresponding to each of the incoming numbers during busy times; A called number discriminating unit 6 that compares numbers and determines whether the call is to a subscriber with a high busy rate; and a subscriber 12;
a calling subscriber determination unit 7 which compares the subscriber number of this subscriber 12 and the called number stored in the number storage unit 5 to determine whether or not the subscriber 12 is a high busy rate subscriber; , a timer 8 that generates an interrupt signal at regular intervals; and a timer 8.
7. A memory updating section 9 is activated by the called number discriminating section 6 and the calling subscriber discriminating section 7 to update information in the number storing section 5, and an announcement section 10 is provided for transmitting a voice message. In this embodiment, it is assumed that the subscriber 12 is a subscriber with a high busy rate.

Next, the operation will be explained. The called number dialed by the subscriber 11 is sent to the register section 3 via the switching network section 1.
After receiving the 6 terminating numbers received by the subscriber 12, the busy determining section 4 determines whether the subscriber 12 is busy or not. In addition, the incoming number discrimination unit 6
checks whether the called number is stored in the number storage unit 5, and if the number of receptions is stored above a certain value and the busy determination unit 4 determines that the call is busy, the call control unit 2 Notice.

The call control unit 2 receives the notification from the called number determination unit 6, and
The exchange network unit 1 is controlled to connect the communication path with the subscriber 11 to the announcement unit 10. The announcement unit 10 sends a message to the subscriber 11 to the effect that the subscriber 12 is a high busy rate subscriber and should refrain from dialing.

In addition, the called number discriminating unit 6 transmits the received called number to the number storage unit 5 after verification and discrimination.The 0 number storage unit 5 stores the received called number and the number of times of reception for each called number.

When a subscriber 12 with a high busy rate makes a call, the calling subscriber determining unit 7 checks whether the number is stored in the number storage unit 5, and if the number of receptions is stored above a certain value, It notifies the call control section 2 and controls the switching network section 1 to connect the communication path with the subscriber 12 to the announcement section 10. The announcement unit 10 then sends a message to the subscriber 12 to the effect that the subscriber 12 should refrain from making calls due to the large number of incoming calls. Thereafter, the calling subscriber determination section 7 updates the memory update section 9.
The called number of the subscriber 12 is sent to the subscriber 12, the called number of the subscriber 12 stored in the number storage unit 5 is deleted, and the called number of the subscriber 12 is sent to the subscriber 1.
2 is in a normal state where it can make and receive calls.

Further, when the called number received by the register section 3 is stored in the number storage section 5 and the busy discrimination section 4 determines that the subscriber of the called number is vacant, the called number discrimination section 6 determines that the subscriber of the called number is vacant.
The called number determining unit 6 activates the memory updating unit 9 and erases the corresponding called number from the number storage unit 5. In other words, once a subscriber with a high busy rate becomes available, he or she is excluded from the list of subscribers with a high busy rate.

Further, the timer 8 interrupts the memory update unit 9 at regular intervals, for example, every few seconds, and when the memory update unit 9 receives the interrupt from the timer 8, it keeps the number of receptions for each incoming number in the number memory unit 5 constant. Subtract a value, for example, "once". As a result, if the number of received calls becomes O, the corresponding called number is deleted from the number storage unit 5.In other words, in this case as well, if the number of calls received decreases within a predetermined period of time, the number of calls received becomes O. Remove from.

In this embodiment, a case has been described in which a call is made to a subscriber 12 with a high busy rate from a subscriber 11 accommodated in the same station.
When a call is made from another station, the called number is received via the trunk 13, and operations similar to those described above can be performed.

〔Effect of the invention〕

As explained above, the present invention detects a subscriber with a high busy rate, restricts the calls of the subscriber with a high busy rate by connecting them to an announcement, connects them with incoming calls preferentially, and By connecting an incoming busy call to an announcement, it is possible to prevent re-calls and suppress subscriber congestion.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Switching network section, 2... Call control section, 3... Register section, 4... Busy determination section, 5......・Number storage section, 6...
Called number discrimination section, 7... Calling subscriber discrimination section, 8
...Timer, 9...Memory update section, 1
0... Announcement section, 11.12...
...Subscriber, 13...Incoming trunk.

Claims (1)

[Scope of Claims] 1. In a storage program controlled switching system, first determining means for determining whether a called subscriber is busy or not, and a busy terminating number when the called subscriber is busy. and a storage means for storing the number of receptions corresponding to each of the busy terminating numbers, and a high busy rate that compares the dialed terminating number and the busy terminating number to have a high probability of being in a busy state. A second determining means for determining whether the call is to a subscriber or not, and comparing the subscriber number of the originating subscriber and the busy-time called number to determine whether or not the call is the high busy rate subscriber. a third discrimination means;
a timer for generating an interrupt signal at regular time intervals; and an updater that is activated by the timer and the second and third determining means and updates the information stored in the storage means; When either the second determining means detects an incoming call to the high busy rate subscriber or the third determining means detects an outgoing call from the high busy rate subscriber, a message is sent to the calling subscriber. This transmission regulation method is characterized by: 2. The calling regulation according to claim 1, wherein the updating means erases the information in the storage means when the high busy rate subscriber is determined to be free by the second determining means. method.