JP2924638B2 - Reception control method for representative group - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to incoming call control of telephone exchanges, and more particularly to a method and apparatus for controlling incoming calls of a representative group.

[0002]

2. Description of the Related Art Heretofore, this type of representative group incoming call control method is based on an incoming call analysis process disclosed in Japanese Patent Application Laid-Open No. 2-134953, in which the number of calls exceeds the maximum allowable number of calls for each representative group. It was done by judging whether or not.

[0003]

According to the conventional representative group incoming call restriction method described above, according to the incoming call analysis processing, the implementation check or the like is performed before determining that a large number of calls are concentrated in one representative group. Is performed, the processing time per incoming call is extra, and the load on the exchange is significantly increased when a large number of incoming calls are concentrated in a large representative group.

[0004] In addition, even when the incoming call restriction is not performed, if calls are concentrated on one representative group, it is processed as busy during the incoming call analysis processing, so that there is a problem that the processing time is further increased.

An object of the present invention is to periodically add up the number of incoming calls without judging whether or not the maximum allowable number of calls of the representative group has been exceeded by the incoming call analysis processing, and to perform incoming call restriction as needed based on the result. An object of the present invention is to provide a method for restricting incoming calls of a representative group and a device thereof.

[0006]

According to the present invention, there is provided a method for restricting incoming calls of a representative group, which analyzes a vacant state of a destination to determine whether or not a maximum allowable number of calls for each representative group is exceeded. In a method of restricting incoming calls of a representative group to incoming call congestion of a representative number subscriber in a switching system, a step of assigning a shortened special number to the representative number subscriber and integrating incoming calls at a predetermined cycle for each of the special numbers Performing a call termination control based on the result of integrating the incoming calls, and converting a special number into a representative subscriber number for a call that has not been processed as a lost call due to the termination control.

[0007] Further, the step of performing the incoming call restriction is performed by a congestion ratio which is a ratio of an integrated value for each predetermined period to a maximum allowable number of calls preset for each representative number subscriber. is for setting the loss call ratio, further the lost call ratio, the integer value of the ratio of the integrated value and the maximum allowable number of calls of the previous cycle as the denominator, the integer value obtained by subtracting 1 from該整numerical Is set as a ratio with 分子 as a numerator.

Further, a representative group of incoming call restriction devices of the present invention is:
In the incoming call restriction device for incoming call congestion of the representative number subscriber in the telephone exchange system, which analyzed whether the maximum number of calls per representative group was exceeded by analyzing the idle state of the destination, the representative number subscriber Each time the special number abbreviated given to the special number is received, the step of integrating the incoming calls at a predetermined cycle for each of the special numbers, and, based on the result of the integration of the incoming calls, the terminating restriction corresponding to the integration result. Means to do,
Means are provided for converting a special number into a representative subscriber number for a call that has not been processed as a lost call due to the termination regulation and transferring the call to a call connection process.

The means for restricting incoming calls calculates a congestion ratio , which is a ratio of an integrated value for each predetermined period to a maximum allowable number of calls preset for each representative number subscriber, and corresponds to the calculation result. The lost call rate of an incoming call to be processed as a lost call is set according to the restricted rate, and the lost call rate of an incoming call to be processed as the lost call is determined by the ratio between the integrated value of the previous cycle and the maximum allowable number of calls. Is set as a denominator, and an integer value obtained by subtracting 1 from the integer value is used as a numerator.

[0010]

[Action] by accumulating the number of incoming calls Ri by the該特by number to impart special number less digits to the main number subscribers in a predetermined cycle, calculates the ratio between the integrated value and the maximum allowable number of calls, their Since incoming call regulation is performed with reference to a predetermined regulation value corresponding to the calculated value, incoming call regulation corresponding to the number of incoming calls is performed at any time without performing incoming call analysis.

[0011]

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

FIG. 1 is a flowchart of an embodiment of a method for restricting incoming calls of a representative group according to the present invention, FIG. 2 is a flowchart of updating the restriction table shown in FIG. 1, and FIG.
0, FIG. 3 (b) shows a restriction rate table 21, FIG. 3 (c) shows a maximum acceptable value table 22, and FIG. 4 is a block diagram of an embodiment of a representative group of incoming call restriction devices of the present invention. .

A special number having a small number of digits is assigned to each representative number subscriber.

The incoming call restriction device 10 of the representative group of the present invention receives the incoming call when it determines that the incoming call is the one assigned to the special number as a result of the analysis of the dialed digits of the incoming call of the special number connection unit 1. In addition, the incoming call restriction device 10 of this representative group calculates the restriction ratio, a counter 20 provided for each special number, a maximum acceptable number of calls table 22, a restriction unit 2 that performs restriction, and a restriction ratio. And a number conversion unit 4 for converting a special number into a representative number. The counter 20 is a counter that accumulates the calls dialed to the special number within a predetermined period. The integrated value is extracted at a predetermined period, divided by the maximum acceptable number of calls by the restriction value calculation unit 3, and the restriction value is calculated. When calculated, it is cleared to zero. Maximum acceptable call count table 22
It describes acceptable maximum number of calls for each special number in Tei
You . The restriction rate calculating unit 3 sequentially extracts all the counters 20 at a predetermined cycle, divides the counters by the corresponding maximum number of acceptable calls, writes the value in the restriction rate table, and thereafter sets the counters 20 to 0.
clear. When there is an incoming call to the special number, the restriction unit 2 refers to the restriction rate table 21 and executes restriction. Number converter 4
Converts an incoming call permitted without regulation into a special representative number and outputs it to the call processing transfer control unit . Call processing handoff control unit, rolling the output call number conversion unit to the call processing unit
Send .

Next, the operation of the incoming call control device of the representative group of this embodiment will be described.

When the exchange recognizes a special number as a result of numerical analysis of the dial transmitted from the subscriber, it adds 1 to the numerical value of the counter 20 of the special number (step 11). Next, the regulation rate table (2
1) is read (step 12). If the regulation rate is 1 (Yes in step 13), the incoming call is converted into a representative number (step 15), and the call is transferred to a call connection. If the regulation rate is 2 or more, the incoming call for each displayed integer value is converted to a representative number ( No in step 13) and transferred to the call connection. A sound is transmitted (step 14).

The update of the regulation table 21 is always performed at a predetermined cycle for all the special numbers (step 3).
1) For each special number, a value obtained by dividing the value of the counter by the value of the maximum incoming call number table 22 is obtained (step 3).
2). It is determined whether or not the calculated value is greater than 1 (step 33).
4) If the calculated value exceeds 1, two digits after the decimal point are described in the regulation rate table 21 (step 35). Thereafter, the counter 20 is cleared to 0 (step 36).

The maximum number of accepted calls table 22 can be changed, and when no regulation is performed , the regulation rate is set to 1 .

[0019]

The present invention described above, according to the present invention is to impart a special number to the representative group, Ri by the special number on the incoming call process than <br/> stage before normal by representative number, the incoming call prohibition Therefore, even when a large number of calls are temporarily concentrated on a large-scale representative group, the load on the exchange can be reduced.

[Brief description of the drawings]

FIG. 1 is a flowchart of an embodiment of a representative group incoming call restriction method according to the present invention.

FIG. 2 is a flowchart of a method for periodically updating a restriction rate table shown in FIG. 1;

3A is a diagram illustrating a counter 20, FIG. 3B is a diagram illustrating a restriction rate table 21, and FIG. 3C is a diagram illustrating a maximum acceptable call number table 22.

FIG. 4 is a block diagram of an embodiment of the representative group incoming call restriction device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Special number connection part 2 Restriction part 3 Restriction rate calculation part 4 Number conversion part 10 Representative group incoming-call restriction device 20 Counter 21 Restriction rate table 22 Maximum acceptable number of calls table

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-134953 (JP, A) JP-A-5-22413 (JP, A) JP-A-5-183629 (JP, A) 96049 (JP, A) JP-A-2-72755 (JP, A) JP-A-3-96050 (JP, A) JP-A-5-328420 (JP, A) JP-A-56-161 (JP, U) JP-B-61-13422 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04M 3/00 H04M 3/22-3/42 H04Q 3/545 H04Q 3/58

Claims (2)

(57) [Claims] 1. A call congestion representative number subscribers in the incoming call destination if the line now conductive <br/> talk-switched by determining whether it exceeds the maximum allowable number of calls for each representative group to analyze the idle state A step of assigning a shortened special number to a representative number subscriber, a step of integrating incoming calls at a predetermined cycle for each special number, and a step of presetting for each representative number subscriber. Calculating a congestion ratio which is a ratio of an integrated value for each predetermined period to the maximum allowable number of calls, and an integer value of the congestion ratio as a denominator, and subtracting 1 from the integer value. Loss of incoming calls treated as lost calls as numerator
Calculating the call ratio, and according to the lost call ratio, the congestion ratio as the denominator
Only incoming calls for each integer value are extracted, and other incoming calls are regarded as lost calls.
Processing a call, and converting a special number into a representative subscriber number for a call that has not been processed as a lost call due to the termination control, and performing the call processing.
A method for controlling incoming calls of a representative group, comprising a step . Wherein ne line to determine whether settings have to analyze the empty state of the destination exceeds the maximum allowable number of calls per representative group
In the incoming call restriction device for incoming call congestion of the representative number subscriber in the telephone exchange system, every time when the shortened special number given to the representative number subscriber is received, an incoming call is made at a predetermined cycle for each of the special numbers. Means for integrating, means for calculating a congestion ratio which is a ratio of an integrated value for each predetermined period to a maximum allowable number of calls preset for each representative number subscriber, and an integer value of the congestion ratio as a denominator, Loss of an incoming call that is treated as a lost call with the number minus 1 from the integer value as the numerator
Means for calculating a call rate, and the congestion rate as a denominator according to the lost call rate.
Only incoming calls for each integer value are extracted, and other incoming calls are regarded as lost calls.
Processing means for converting a special number into a representative subscriber number for a call which has not been processed as a lost call due to the incoming call restriction, and performing the call processing;
Incoming call prohibition device representative group and having means.