JPH10164227A - Call control system for standby call - Google Patents

Abstract

(57) [Summary] The present invention relates to a waiting call control system for waiting call, and provides a waiting call control system for waiting call without deteriorating the service to the line side caller. The purpose is. SOLUTION: In a private branch exchange, a waiting call control processing unit for controlling whether a waiting call can be connected or not, and for each reception extension group,
A state management table that manages the number of waiting calls, the maximum waiting time, the idle state, the number of receptionists in real time, and updates the contents, and the number of allowable waiting calls and the allowable waiting time preset for each reception extension group , An allowance data table for managing a queuing allowance rate, and an operation flag reference table for managing preset activation conditions, connection conditions, and connection destinations for each reception extension group.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waiting call control system for a standby call, and more particularly, to an allowable value for a standby call such as dial-in from an analog network or an INS (information network system) network. Waiting call control that allows the public network station to send a busy tone (BT) to the caller for incoming calls exceeding the limit, and to control the number of calls and the waiting time by changing the connection destination. About the system.

[0002]

2. Description of the Related Art FIG. 14 is a conceptual diagram of a conventional system.
In the private branch exchange (PBX) 10, there is a group arranged for each of a plurality of extensions. For example, G1 is a group having an extension of ~, G2 is a group having an extension of ~, and G3 is a group having an extension of ~. In addition, the extension (~,
Are different extension numbers.

[0005] Reference numeral 1 denotes a public network, which is connected to a private branch exchange 10 via a switch unit 2. The switch unit 2 and each group are connected. Reference numeral 3 denotes an exchange (public office) of a public network connected to the public network 1, and a telephone terminal 4 is connected to the public office 3. Note that the number of telephone terminals 4 connected to the public station 3 is not limited to one, and a plurality of telephone terminals are connected, but they are omitted in the figure.

In the system configured as described above,
Assuming that the telephone terminal 4 has made a call (call) to the group G1 by dial-in, the call signal enters the switch unit 2 via the public station 3 and the public network 1. Private branch exchange 10
Monitors the use status of the extension, and when the extension of the group G1 is not in use, the switch unit 2 causes the extension to receive a call.

[0005] When an extension is in use, an incoming call is made to another vacant extension in the same group G1, for example. Here, when all the extensions of the group G1 are in use, the switch unit 2 enters a state in which the switch unit 2 waits for an incoming call if there is a vacant office line. As described above, in the conventional system, if there is a vacancy in the office line, an incoming call is received regardless of the state of the receiving side.

[0006]

In the conventional system described above, when dial-in calls are made to a reception group for waiting calls, even if the reception group is talking, if there is a vacancy in the office line, the call is received. Since the waiting (connection waiting state) is performed, there is a problem that the waiting time of the station line side caller 4 becomes very long, and the service to the caller is deteriorated. Also, in order to avoid a busy tone state, the private branch exchange 1
From 0, information such as "I'm very busy, please wait for a while" may be sent, but in this case, billing will occur.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a waiting call control system for waiting call reception without deteriorating the service to the line-side caller. .

[0008]

[Means for Solving the Problems]

(1) FIG. 1 is a block diagram showing the principle of the present invention.
0 shows a configuration example. In the private branch exchange 10, 1
Reference numeral 1 denotes a waiting call control processing unit that controls whether a waiting call can be connected or not;
2 is a state management table for managing the number of waiting calls, the maximum waiting time, the idle state, and the number of receptionists in real time for each reception extension group, and updating the contents thereof; 13 is set in advance for each reception extension group The permitted data table 14 manages the number of permitted waiting calls, the permitted waiting time, and the permitted waiting ratio. Reference numeral 14 denotes an operation flag reference table that manages a preset activation condition, connection condition, and connection destination for each reception extension group. is there. The private branch exchange 10 is connected to the public network and each extension.

According to the configuration of the present invention, the waiting call control processing unit 11 registers the contents stored in the constantly updated state management table 12 and the allowable data table 13 and / or the operation flag reference table 14 in advance. Since the contents are compared with the contents and the optimum waiting call control is performed according to the comparison result, it is possible to prevent the service to the line-side caller from being lowered.

(2) In this case, the waiting call control processing unit 11 compares the number of waiting calls stored in the state management table 12 with respect to the number of waiting calls for the reception group in the incoming call from the public network. And the number of waiting calls registered in advance in the allowable data table 13 to control incoming calls.

According to the configuration of the present invention, the number of waiting calls stored in the state management table 12 is compared with the number of waiting calls registered in the allowable data table 13 in advance, and an incoming call is determined according to the comparison result. , It is possible to prevent the service for the line-side caller from being degraded.

(3) The waiting call control processing unit 11
Is compared with the waiting time for the reception group in the incoming call from the public network by comparing the waiting time stored in the state management table 12 with the waiting time registered in the allowable data table 13 in advance. It is characterized by controlling incoming calls.

According to the configuration of the present invention, the waiting time stored in the state management table 12 is compared with the waiting time registered in the allowable data table 13 in advance, and the incoming call is controlled according to the comparison result. By doing so, it is possible to prevent the service for the line-side caller from being degraded.

(4) The waiting call control processing unit 11
In the incoming call from the public network, the state management table 12
And the allowable data table 13
Is characterized in that the number of waiting calls is calculated from the waiting allowance rate registered in advance and compared with the number of waiting calls stored in the state management table 12 to control incoming calls.

According to the configuration of the present invention, the number of waiting calls is calculated from the number of acceptors stored in the state management table 12 and the allowable waiting ratio registered in the allowable data table 13 in advance. By comparing the number of waiting calls stored in the table 12 and controlling the incoming call according to the comparison result, it is possible to prevent the service for the local line side caller from deteriorating.

(5) The waiting call control processing unit 11
In the incoming call from the public network, the incoming call is controlled by referring to the state management table 12 and the allowable data table 13 and combining the number of waiting calls and the waiting time with respect to whether the incoming call to the corresponding reception group is possible or not. It is characterized by.

According to the configuration of the present invention, an incoming call is received by combining the number of waiting calls and the waiting time stored in the state management table 12 with the number of permitted waiting calls and the allowable waiting time registered in the allowable data table 13. By controlling the
It is possible to prevent the service for the line-side caller from being degraded.

(6) The waiting call control processing unit 11
In the incoming call from the public network, whether the incoming call to the corresponding reception group is acceptable or not is controlled by referring to the state management table 12 and the allowable data table 13 and combining the number of waiting calls and the allowable waiting ratio. It is characterized by:

According to the configuration of the present invention, the number of waiting calls and the number of acceptors stored in the state management table 12 are combined with the number of allowable waiting calls registered in the allowable data table 13 and the waiting ratio. By controlling the incoming call, it is possible to prevent the service for the line-side caller from being degraded.

(7) The waiting call control processing unit 11
In the incoming call from the public network, whether the incoming call to the corresponding reception group is acceptable or not is controlled by referring to the state management table 12 and the allowable data table 13 and combining the waiting time and the allowable waiting ratio. It is characterized by.

According to the configuration of the present invention, an incoming call is received by combining the waiting time and the number of recipients stored in the state management table 12 with the allowable waiting time and the allowable waiting ratio registered in the allowable data table 13. By performing the control, it is possible to prevent the service for the line-side caller from being reduced.

(8) The waiting call control processing unit 11
In the case of an incoming call from the public network, whether or not an incoming call to the corresponding reception group is possible is referred to by referring to the state management table 12 and the allowable data table 13, and by combining the number of waiting calls, the waiting time, and the waiting allowable ratio. It is characterized by controlling incoming calls.

According to the configuration of the present invention, by referring to the state management table 12 and the permissible data table 13 and combining the number of waiting calls, the waiting time, and the permissible waiting ratio, the incoming call is controlled and the line side is controlled. The service to the caller can be prevented from being degraded.

(9) The waiting call control processing unit 11
In a dial-in incoming call from the public network, by registering whether or not the incoming call can be accepted in the activation condition of the operation flag reference table 14, the incoming call is rejected when the call cannot be accepted, and The BT is transmitted from the station.

According to the configuration of the present invention, when the call is not accepted, the incoming call is rejected, and the BT on the public line is sent to the line side caller from the station on the public network.
, It can be notified that there is no free line.

(10) Further, the waiting call control processing section 11
Is characterized in that, for an incoming call from the public network, the connection destination is registered in the activation condition of the operation flag reference table 14 so as to change the connection destination when a call cannot be received in the corresponding reception group.

According to the configuration of the present invention, even when a call cannot be received at the corresponding reception group, the call can be received at another group so that the service for the local line side caller is not degraded.

[0028]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 2 is a block diagram showing an embodiment of the present invention. 1 and 14 are denoted by the same reference numerals. In the figure, 1 is a public network connected to the private branch exchange 10, and 4 is a telephone terminal (general subscriber) connected to the public network 1. In the figure, the public office 3 (see FIG. 14) is not shown, but the telephone terminal 4
Is connected to the public office and to the public network 1.

In the private branch exchange 10, reference numeral 11 denotes a waiting call control processing unit for controlling whether a waiting call can be connected or not, and reference numeral 12 denotes, in real time, the number of waiting calls, the maximum waiting time, the idle state, and the number of acceptors for each reception extension group. A state management table that manages and updates the contents, and 13 includes, for each reception extension group,
A permissible data table for managing a preset number of permitted waiting calls, a permissible waiting time, and a permissible waiting ratio. Reference numeral 14 denotes an operation flag for managing a preset activation condition, connection condition, and connection destination for each reception extension group. It is a table.

Reference numeral 5 denotes a reception extension connected to the private branch exchange 10, reference numeral 6 denotes a management extension connected to the private branch exchange 10, and reference numeral 7 denotes a management personal computer connected to the private branch exchange 10. The reception extensions 5 are grouped for each of a plurality of extensions. The contents of the permissible data table 13 and the operation flag reference table 14 are registered in advance by the administrator from the management personal computer 7. Or also the administrative extension 6
May be registered.

FIG. 3 is a diagram showing a configuration example of the state management table 12. As shown in the figure, a group number 12a,
Number of waiting calls 12b, maximum waiting time 12c, idle state 1
2d and the number of receptionists 12e. The groups are grouped as numbers 1 to n as shown in the figure. The number of waiting calls 12b is the number of calls waiting for connection at the entrance of the private branch exchange, and aa is decimal. Maximum waiting time 1
Reference numeral 2c denotes a call waiting for a connection for the longest time, and bbbb is a decimal number in seconds.

In the empty state 12d, "0" is stored if at least one extension is free for each group, and "1" is stored if all extensions are busy (busy). I have. c is 1-bit binary. The number of receptionists 12e is the number of extensions forming the group, and dd is decimal.

The contents of the state management table 12 are constantly updated in real time by the waiting call control processing section 11. FIG. 4 shows the allowable data table 13.
FIG. 3 is a diagram showing an example of the configuration of FIG. As shown in the figure, the group number 13a, the number of allowable waiting calls 13b, and the allowable waiting time 13
c and a waiting allowance 13d. The permissible waiting call number 13b indicates the number of permissible waiting calls in the corresponding reception extension group, and aa is decimal.

The permissible waiting time 13c indicates a waiting time permissible as one waiting call in the corresponding extension group, and bbbb is a decimal number in seconds. The queuing allowance rate 13d indicates a rate that can be accepted as a waiting call with respect to the number of receptionists in the corresponding reception extension group,
cc is decimal and the unit is%.

FIG. 5 is a diagram showing a configuration example of the operation flag reference table 14. As shown in the figure, the group number 14
a, the activation condition 14b, the connection condition 14c, and the connection destination 1
4d. The activation condition 14b indicates a control type for controlling a waiting call in a corresponding reception extension group. As shown in the figure, the activation condition 14b includes “the number of waiting calls”, “the maximum waiting time”, and the like.

The connection condition 14c indicates a call process finally executed after the execution of the waiting call control in the corresponding reception extension group. The connection conditions include "BT" and "connection destination extension" as shown in the figure. The connection destination 14d indicates a connection destination extension number when an extension connection is specified in the connection condition in the corresponding reception extension group. xxxx is 1
It is decimal. The operation of the system configured as described above will be described below.

FIG. 6 is a flowchart showing the entire operation of the present invention. When a call is made from the general telephone (station line side caller) 4 and arrives at the private branch exchange 10 (S1), the waiting call control processing section 11 makes the idle state 12d of the state management table 12 empty.
Is checked (S2), and it is checked whether or not there is a free space for the receptionist (S3). If the receptionist has a vacancy, the reception is made to arrive at one of the telephones 5 in the group including the extension (S4).

In step S3, if all extensions of the group are in use and there are no available receptionists, the waiting call control processing unit 11 refers to the operation flag reference table 14 and based on the result, as follows: Control (S
5). (1) Control by the number of waiting calls (2) Control by the waiting time (3) Control by the waiting ratio (4) Control by the number of waiting calls and waiting time (5) Control by the number of waiting calls and the waiting ratio (6) Wait Control Based on Time and Waiting Permissible Rate (7) Control Based on Number of Waiting Calls, Waiting Time, and Permissible Waiting Rate Hereinafter, details of the controls (1) to (7) will be described with reference to flowcharts.

FIG. 7 is a flow chart showing an embodiment of the incoming call operation using the control based on the number of waiting calls. In the case of control based on the number of waiting calls, the waiting call control processing unit 11 compares the number of waiting calls 12b of the state management table 12 with the number of allowable waiting calls 13b of the allowable data table 13 (S1).
Then, it is checked whether the number of waiting calls 12b in the state management table 12 is larger or smaller than the allowable number of waiting calls 13b (S2).

When the number of waiting calls 12b in the state management table 12 is smaller than the allowable number of waiting calls 13b, there is a margin, and the waiting call control processing unit 11 waits (S3). If you wait, you will be able to connect.

On the other hand, the number of waiting calls 1 in the state management table 12
When 2b is larger than the allowable waiting call number 13b, the call is kept waiting forever. Therefore, the following incoming call control is performed. That is, the waiting call control processing unit 11
Checks the connection condition 14c in the operation flag reference table 14 (S4). In this case, there is a choice between performing BT connection or changing the connection destination (S5).

When the BT connection is selected, the waiting call control processing section 11 rejects the incoming call, and the public station (the exchange connected to the public network 1 in FIG. 2; not shown) sends the call to the calling subscriber 4. BT (busy tone) is transmitted to the terminal (S6). When the connection destination change is selected, the waiting call control processing unit 11 changes the connection destination according to the connection destination data 14d of the operation flag reference table 14 (S7). Here, it is connected to the extension xxxx of another group.

According to this embodiment, the number of waiting calls stored in the state management table 12 is compared with the number of waiting calls registered in the allowable data table 13 in advance.
By controlling the incoming call according to the comparison result, it is possible to prevent the service for the local line side caller from being degraded.

Further, the waiting call control processing section 11 rejects the incoming call when the reception is not possible by registering whether or not the incoming call is possible in the activation condition of the operation flag reference table 14 in the dial-in incoming from the public network. By transmitting a BT from the public network station to the station line side caller, the incoming call is rejected when reception is not possible, and a BT is transmitted from the public network station to the station line side caller. Can be notified that there is no free space.

Further, the waiting call control processing unit 11 receives the operation flag reference table 1 upon receiving an incoming call from the public network.
By registering the connection destination change in the start condition of 4,
Even when a call cannot be received in the reception group, the call can be received in another group so that the service to the local line side caller is not deteriorated.

FIG. 8 is a flow chart showing an embodiment of the incoming call operation using the control based on the waiting time. In the case of the control by the waiting time, the waiting call control processing unit 11 compares the maximum waiting time 12c of the state management table 12 with the allowable waiting time 13c of the allowable data table 13 (S
1). Then, the maximum wait time 1 of the state management table 12
It is checked whether 2c is longer or shorter than the allowable waiting time 13c of the allowable data table 13 (S2).

The maximum wait time 12 of the state management table 12
If c is smaller than the permissible waiting time 13c of the permissible data table 13, the waiting call control processing unit 11 performs queuing (S3). If you wait, you will be able to connect.

On the other hand, if the maximum wait time 12c of the state management table 12 is longer than the allowable wait time 13c of the allowable data table 13, the state is kept forever. Therefore, the following incoming call control is performed. That is, the waiting call control processing unit 11 checks the connection condition 14c of the operation flag reference table 14 (S
4). In this case, there is a choice between performing BT connection or changing the connection destination (S5).

When the BT connection is selected, the waiting call control processing section 11 rejects the incoming call, and sends a call to the calling subscriber 4 from a public station (an exchange connected to the public network 1 in FIG. 2; not shown). BT (busy tone) is transmitted to the terminal (S6). When the connection destination change is selected, the waiting call control processing unit 11 changes the connection destination according to the connection destination data 14d of the operation flag reference table 14 (S7). In this case, the call is received at extension xxxx of another group.

According to this embodiment, the maximum waiting time stored in the state management table 12 is compared with the allowable waiting time registered in the allowable data table 13 in advance, and according to the comparison result. By controlling incoming calls,
It is possible to prevent the service for the line-side caller from being degraded.

Further, the waiting call control processing section 11 rejects the incoming call when the reception is not possible by registering whether or not the incoming call is possible in the activation condition of the operation flag reference table 14 in the dial-in incoming from the public network. By transmitting a BT from the public network station to the station line side caller, the incoming call is rejected when reception is not possible, and a BT is transmitted from the public network station to the station line side caller. Can be notified that there is no free space.

Further, the waiting call control processing unit 11 receives the operation flag reference table 1 upon receiving a call from the public network.
By registering the connection destination change in the start condition of 4,
Even when a call cannot be received in the reception group, the call can be received in another group so that the service to the local line side caller is not deteriorated.

FIG. 9 is a flow chart showing one embodiment of the incoming call operation using the control based on the waiting ratio. In the case of the control based on the allowable waiting ratio, the waiting call control processing unit 11 calculates the allowable number of waiting calls from the number of acceptors 12e in the state management table 12 and the allowable waiting ratio 13d in the allowable data table 13 (S1).

More specifically, for example, when the number of receptionists 12e is 10
If the meeting allowance 13d is 20%,
(20/100) = 2, and the allowable number of waiting calls becomes 2. The calculated value 2 is compared with the number of waiting calls 12b in the state management table 12 (S2).

Then, the waiting call control processing unit 11 checks whether the number of waiting calls 12b in the state management table 12 is larger or smaller than the calculated allowable number of waiting calls (S3). If the number of waiting calls 12b in the state management table 12 is smaller than the calculated allowable number of waiting calls, the waiting is performed (S
4). If you wait, you will be able to connect.

On the other hand, the number of waiting calls 1 in the state management table 12
If 2b is larger than the calculated allowable number of waiting calls, the following incoming call control is performed. That is, the waiting call control processing unit 11 refers to the operation flag reference table 14 and checks the connection condition 14c (S5). In this case, BT
Select whether to connect or change the connection destination (S
6).

When making a BT connection, the waiting call control processing section 11 rejects the incoming call and sends a BT from the public station to the calling subscriber 4 (S7). On the other hand, when the connection destination change processing is performed, the connection destination is changed according to the connection destination data 14d with reference to the operation flag reference table 14, and the incoming call is made to the extension xxxx of another group (S8).

According to this embodiment, the number of waiting calls is calculated from the number of acceptors stored in the state management table 12 and the allowable waiting ratio registered in the allowable data table 13 in advance. By comparing the number of waiting calls stored in the management table 12 and controlling the incoming call according to the comparison result, it is possible to prevent the service for the line-side caller from being lowered.

Further, the waiting call control processing unit 11 rejects the incoming call when the reception is not possible by registering whether or not the incoming call can be accepted in the activation condition of the operation flag reference table 14 in the dial-in incoming from the public network. By transmitting a BT from the public network station to the station line side caller, the incoming call is rejected when reception is not possible, and a BT is transmitted from the public network station to the station line side caller. Can be notified that there is no free space.

Further, when the incoming call from the public network is received by the waiting call control processing unit 11, the operation flag reference table 1
By registering the connection destination change in the start condition of 4,
Even when a call cannot be received in the reception group, the call can be received in another group so that the service to the local line side caller is not deteriorated.

FIG. 10 is a flow chart showing one embodiment of the incoming call operation using the control based on the combination of the number of waiting calls and the waiting time. In the case of control using a combination of the number of waiting calls and the waiting time, the waiting call control processing unit 11 compares the maximum waiting time 12c of the state management table 12 with the allowable waiting time 13c of the allowable data table 13 (S1).

The maximum wait time 12c of the state management table 12 is set to the allowable wait time 1 of the allowable data table 13.
A comparison is made as to whether it is larger or smaller than 3c (S2). When the maximum waiting time 12c is shorter than the allowable waiting time 13c, the waiting call control processing unit 11 compares the number 12b of waiting calls in the state management table 12 with the allowable number of waiting calls 13b in the allowable data table 13 (S3). .

The number of waiting calls 12b in the state management table 12 is equal to the number of allowable waiting calls 13b in the allowable data table 13.
It is checked whether it is larger or smaller than (S4). When the number of waiting calls 12b is smaller than the allowable number of waiting calls 13b,
A meeting is performed (S5). This is because connection will be possible soon.

On the other hand, when the number of waiting calls 12 b is 13
If it is larger than b, or if the maximum waiting time 12c of the state management table 12 is longer than the allowable waiting time 13c of the allowable data table 13 in step S2, the following incoming call control is performed. That is, the waiting call control processing unit 11 refers to the operation flag reference table 14 and checks the connection condition 14c (S6). In this case, BT
Select whether to connect or change the connection destination (S
7).

When making a BT connection, the waiting call control processing section 11 rejects the incoming call and sends a BT from the public station to the calling subscriber 4 (S8). On the other hand, when the connection destination change processing is performed, the connection destination is changed according to the connection destination data 14d with reference to the operation flag reference table 14, and the incoming call is made to the extension xxxx of another group (S9).

According to this embodiment, the number of waiting calls and the waiting time stored in the state management table 12 are combined with the number of permitted waiting calls and the permissible waiting time registered in the permissible data table 13. By controlling the incoming call, it is possible to prevent the service for the line-side caller from being degraded.

The waiting call control processing section 11 rejects the incoming call when the reception is not possible by registering whether or not the incoming call can be accepted in the activation condition of the operation flag reference table 14 in the dial-in incoming from the public network. By transmitting a BT from the public network station to the station line side caller, the incoming call is rejected when reception is not possible, and a BT is transmitted from the public network station to the station line side caller. Can be notified to the station side caller that there is no free space.

Further, the waiting call control processing section 11 receives the operation flag reference table 1 from the public network when receiving an incoming call.
By registering the connection destination change in the start condition of 4,
Even when a call cannot be received in the reception group, the call can be received in another group so that the service to the local line side caller is not deteriorated.

FIG. 11 is a flow chart showing an embodiment of the incoming call operation using the control based on the combination of the number of waiting calls and the waiting ratio. In the case of control based on a combination of the number of waiting calls and the allowable waiting ratio, the waiting call control processing unit 11 compares the number of waiting calls 12b of the state management table 12 with the allowable number of waiting calls 13b of the allowable data table 13 (S1).

The number of waiting calls 12b is equal to the allowable number of waiting calls 1
It is checked whether it is larger or smaller than 3b (S2). When the number of waiting calls 12b is smaller than the allowable number of waiting calls 13b, the waiting call control processing unit 11 determines the number of allowable waiting calls from the number of acceptors 12e of the state management table 12 and the allowable queuing rate 13d of the allowable data table 13. It is calculated (S3). The method of calculating the number of allowable waiting calls is the same as that described with reference to FIG.

Next, the waiting call control processor 11 compares the number of waiting calls 12b in the state management table 12 with the calculated allowable number of waiting calls (S4). Then, it is checked whether the number of waiting calls 12b is larger or smaller than the calculated allowable number of waiting calls 13b (S5). When the number of waiting calls 12b is smaller than the calculated allowable number of waiting calls, the waiting call control processing unit 11
A meeting is performed (S6). This is because there is a high possibility that the connection will be made within that.

On the other hand, when the number of waiting calls 12b is larger than the calculated allowable number of waiting calls, or when the number of waiting calls 12b of the state management table 12 is larger than the allowable number of waiting calls 13b of the allowable data table 13 in step S2. Performs the following incoming call control. That is, the waiting call control processor 11 refers to the operation flag reference table 14 and checks the connection condition 14c (S7). In this case, BT
Select whether to connect or change the connection destination (S
8).

When making a BT connection, the waiting call control processing section 11 rejects the incoming call and sends a BT from the public station to the calling subscriber 4 (S9). On the other hand, when the connection destination change processing is performed, the connection destination is changed according to the connection destination data 14d with reference to the operation flag reference table 14, and the incoming call is made to the extension xxxx of another group (S10).

According to this embodiment, the number of waiting calls and the number of acceptors stored in the state management table 12 are combined with the number of allowable waiting calls and the allowable waiting ratio registered in the allowable data table 13. By controlling the incoming call, it is possible to prevent the service for the line-side caller from deteriorating.

Further, the waiting call control processing section 11 rejects the incoming call when the reception is not possible by registering whether the incoming call can be accepted in the activation condition of the operation flag reference table 14 in the dial-in incoming from the public network. By transmitting a BT from the public network station to the station line side caller, the incoming call is rejected when reception is not possible, and a BT is transmitted from the public network station to the station line side caller. Can be notified to the station side caller that there is no free space.

Further, the waiting call control processing section 11 receives the operation flag reference table 1 upon receiving an incoming call from the public network.
By registering the connection destination change in the start condition of 4,
Even when a call cannot be received in the reception group, the call can be received in another group so that the service to the local line side caller is not deteriorated.

FIG. 12 is a flowchart showing an embodiment of the incoming call operation using the control based on the combination of the waiting time and the waiting allowable ratio. In the case of the control based on the combination of the waiting time and the allowable waiting time, the waiting call control processing unit 11 compares the maximum waiting time 12c of the state management table 12 with the allowable waiting time 13c of the allowable data table 13 (S1).

Then, it is checked whether the maximum waiting time 12c is longer or shorter than the allowable waiting time 13c (S
2). When the maximum waiting time 12c is smaller than the allowable waiting time 13c, the waiting call control processing unit 11 calculates the number of allowable waiting calls from the number of acceptors 12e of the state management table 12 and the allowable waiting rate 13d of the allowable data table 13. (S3). The method of calculating the number of allowable waiting calls is the same as that described with reference to FIG.

Next, the waiting call control processing section 11 compares the number of waiting calls 12b in the state management table 12 with the calculated allowable number of waiting calls (S4). Then, it is checked whether the number of waiting calls 12b is larger or smaller than the calculated allowable number of waiting calls 13b (S5). When the number of waiting calls 12b is smaller than the calculated allowable number of waiting calls, the waiting call control processing unit 11
A meeting is performed (S6). This is because there is a high possibility that the connection will be made within that.

On the other hand, when the number of waiting calls 12b is larger than the calculated allowable number of waiting calls, or when the maximum waiting time 12c of the state management table 12 is longer than the allowable waiting time 13c of the allowable data table 13 in step S2. The following incoming call control is performed. That is, the waiting call control processor 11 refers to the operation flag reference table 14 and checks the connection condition 14c (S7). In this case, there is a choice between performing BT connection or changing the connection destination (S8).

When performing the BT connection, the waiting call control processing section 11 rejects the incoming call and sends the BT from the public station to the calling subscriber 4 (S9). On the other hand, when the connection destination change processing is performed, the connection destination is changed according to the connection destination data 14d with reference to the operation flag reference table 14, and the incoming call is made to the extension xxxx of another group (S10).

According to the present embodiment, an incoming call is received by combining the waiting time and the number of acceptors stored in the state management table 12 with the allowable waiting time and the allowable waiting ratio registered in the allowable data table 13. , It is possible to prevent the service for the line-side caller from being degraded.

Further, the waiting call control processing section 11 rejects the incoming call when the reception is not possible by registering whether or not the incoming call is possible in the activation condition of the operation flag reference table 14 in the dial-in incoming from the public network. By transmitting a BT from the public network station to the station line side caller, the incoming call is rejected when reception is not possible, and a BT is transmitted from the public network station to the station line side caller. Can be notified that there is no free space.

Further, the waiting call control processing section 11 receives the operation flag reference table 1 upon receiving a call from the public network.
By registering the connection destination change in the start condition of 4,
Even when a call cannot be received in the reception group, the call can be received in another group so that the service to the local line side caller is not deteriorated.

FIG. 13 is a flow chart showing an embodiment of the incoming call operation using the control based on the combination of the number of waiting calls, the waiting time, and the waiting ratio. In the case of control based on the combination of the number of waiting calls, the waiting time, and the allowable waiting time, the waiting call control processing unit 11 compares the maximum waiting time 12c of the state management table 12 with the allowable waiting time 13c of the allowable data table 13 (S1). ).

Then, it is checked whether the maximum waiting time 12c is longer or shorter than the allowable waiting time 13c (S
2). If the maximum waiting time 12c is shorter than the allowable waiting time 13c, the waiting call control processing unit 11 compares the number of waiting calls 12b in the state management table 12 with the allowable number of waiting calls 13b in the allowable data table 13 (S3). Then, it is checked whether the number of waiting calls 12b is larger or smaller than the allowable number of waiting calls 13b (S4).

When the number of waiting calls 12b is smaller than the number of allowable waiting calls 13b, the waiting call control processing unit 11 determines the number of allowable waiting calls from the number of acceptors 12e of the state management table 12 and the allowable queuing rate 13d of the allowable data table 13. Calculate (S
5). The calculation method is the same as the method described with reference to FIG.

The waiting call control processor 11 compares the number of waiting calls 12b in the state management table 12 with the allowable number of waiting calls calculated in step S5 (S6). And the number of waiting calls 12
It is checked whether b is larger or smaller than the calculated allowable number of waiting calls (S7).

If the number of waiting calls 12b is smaller than the calculated allowable number of waiting calls, the waiting call control processor 11 performs queuing (S8). This is because there is a high possibility that the connection will be made within that.

On the other hand, if the number of waiting calls 12b is larger than the calculated allowable number of waiting calls, or if the maximum waiting time 12c of the status management table 12 is longer than the allowable waiting time 13c of the allowable data table 13 in step S2, or In step S4, the number of waiting calls 12b in the state management table 12 is
If it is larger than b, the following incoming call control is performed. That is, the waiting call control processing unit 11 refers to the operation flag reference table 14 and checks the connection condition 14c (S9). In this case, there is a choice between performing BT connection or changing the connection destination (S10).

When performing the BT connection, the waiting call control processing section 11 rejects the incoming call and sends the BT from the public station to the calling subscriber 4 (S11). On the other hand, when the connection destination change processing is performed, the connection destination is changed according to the connection destination data 14d with reference to the operation flag reference table 14, and the incoming call is made to the extension xxxx of another group (S12).

According to this embodiment, by referring to the state management table 12 and the permissible data table 13, by combining the number of waiting calls, the waiting time, and the permissible waiting ratio, the incoming call is controlled and the local line is controlled. It is possible to prevent the service reaching the caller from being degraded.

Further, the waiting call control processing section 11 rejects the incoming call when the reception is not possible by registering whether or not the incoming call can be accepted in the activation condition of the operation flag reference table 14 in the dial-in incoming from the public network. By transmitting a BT from the public network station to the station line side caller, the incoming call is rejected when reception is not possible, and a BT is transmitted from the public network station to the station line side caller. Can be notified that there is no free space.

Further, when the incoming call from the public network is received by the waiting call control processing unit 11, the operation flag reference table 1
By registering the connection destination change in the start condition of 4,
Even when a call cannot be received in the reception group, the call can be received in another group so that the service to the local line side caller is not deteriorated.

[0095]

As described above in detail, (1) According to the first aspect of the present invention, a waiting call control processing unit for controlling whether a waiting call can be connected or not is provided in a private branch exchange.
For each reception extension group, the number of waiting calls, the maximum waiting time, the idle state, and the number of receptionists are managed in real time, and a state management table in which the contents are updated, and an allowance set in advance for each reception extension group An allowable data table for managing the number of waiting calls, an allowable waiting time, and an allowable waiting ratio, and an operation flag reference table for managing preset activation conditions, connection conditions, and connection destinations for each reception extension group. Thus, the waiting call processing control unit compares the content stored in the constantly updated state management table with the content registered in advance in the allowable data table and / or the operation flag reference table, and responds to the comparison result. In this case, the optimal call control is performed, so that the service to the local line side caller can be prevented from being lowered.

(2) According to the second aspect of the invention, in the incoming call from the public network, the waiting call control processing unit stores the number of waiting calls for the reception group in the state management table. The number of waiting calls is compared with the number of waiting calls registered in the allowable data table 13 in advance, and by controlling the incoming call, the number of waiting calls stored in the state management table and registered in the allowable data table in advance. The number of waiting calls is compared with the number of waiting calls, and the incoming call is controlled in accordance with the result of the comparison, so that the service to the local line side caller is not reduced.

(3) According to the third aspect of the invention, in the incoming call from the public network, the waiting call control processing section stores the waiting time for the reception group in the state management table. The waiting time is compared with the waiting time registered in the allowable data table in advance, and by controlling the incoming call, the waiting time stored in the state management table and the waiting time registered in the allowable data table in advance are compared. And controlling the incoming call according to the comparison result, so that the service to the local line side caller is not reduced.

(4) According to the fourth aspect of the invention, in the incoming call from the public network, the waiting call control processing unit stores the number of allowable waiting calls for the corresponding reception group in the state management table. The number of waiting calls is calculated from the number of receptionists who have been registered and the allowable waiting rate registered in advance in the allowable data table, and the number of waiting calls is compared with the number of waiting calls stored in the state management table. Calculate the number of waiting calls from the number of acceptors stored in the management table and the waiting allowance rate registered in advance in the allowable data table, and compare this with the number of waiting calls stored in the state management table. In addition, by controlling the incoming call according to the comparison result, it is possible to prevent the service for the local line side caller from being lowered.

(5) According to the fifth aspect of the present invention, in the incoming call from the public network, the waiting call control processing section determines whether the incoming call to the corresponding reception group is acceptable or not by the state management table and the allowable data table. , By combining the number of waiting calls and the waiting time and controlling the incoming call, the number of waiting calls and the waiting time stored in the state management table, and the number of allowed waiting calls and the allowable By controlling the incoming call in combination with the waiting time, it is possible to prevent the service to the line side caller from being degraded.

(6) According to the invention as set forth in claim 6, the waiting call control processing section determines whether the incoming call from the public network can be received by the corresponding reception group by using the state management table and the permissible data table. , By combining the number of waiting calls and the permissible waiting ratio and controlling the incoming call, the number of waiting calls and the number of acceptors stored in the state management table, and the number of permissible waiting calls registered in the permissible data table Incoming calls can be controlled in combination with the queuing tolerance and the service to the local line-side caller is not reduced.

(7) According to the invention described in claim 7, the waiting call control processing section determines whether the incoming call from the public network can be received by the corresponding reception group by using the state management table and the allowable data table. , By controlling the incoming call by combining the waiting time and the waiting allowance rate, the waiting time and the number of acceptors stored in the state management table, and the waiting time and the allowable waiting time registered in the allowable data table. Incoming calls can be controlled in combination with the allowable rate so that the service to the local line side caller is not reduced.

(8) According to the invention as set forth in claim 8, the waiting call control processing section determines whether the incoming call from the public network can receive an incoming call to the corresponding reception group by using the state management table and the allowable data table. , By combining the number of waiting calls, the waiting time, and the allowable waiting time, and controlling the incoming call, referring to the state management table and the allowable data table, the number of waiting calls, the waiting time, and the allowable waiting time. Can be combined with each other so that the incoming call is controlled so as not to lower the service to the line-side caller.

(9) According to the ninth aspect of the present invention, the waiting call control processing section registers whether or not a call can be received in the activation condition of the operation flag reference table when a dial-in call is received from a public network. By rejecting an incoming call when the reception is not possible and transmitting a BT from the public network station to the local line side caller, the incoming call is rejected when the reception is not possible and a public network station is transmitted to the local line side caller. BT can be sent to notify that there is no free line.

(10) According to the tenth aspect of the present invention,
The incoming call control processing unit, in the incoming call from the public network, by registering the connection change destination in the activation condition of the operation flag reference table 14, and when it is not possible to receive the corresponding reception group, by changing the connection destination Even when a call cannot be received at the corresponding reception group, the call can be received at another group so that the service for the local line side caller is not degraded.

[Brief description of the drawings]

FIG. 1 is a principle block diagram of the present invention.

FIG. 2 is a block diagram showing an embodiment of the present invention.

FIG. 3 is a diagram illustrating a configuration example of a state management table.

FIG. 4 is a diagram illustrating a configuration example of an allowable data table.

FIG. 5 is a diagram illustrating a configuration example of an operation flag reference table.

FIG. 6 is a flowchart showing the overall operation of the present invention.

FIG. 7 is a flowchart illustrating an embodiment of an incoming call operation using control based on the number of waiting calls.

FIG. 8 is a flowchart showing an embodiment of an incoming call operation using control by a waiting time.

FIG. 9 is a flowchart showing an embodiment of an incoming call operation using control based on a waiting ratio.

FIG. 10 is a flowchart illustrating an example of an incoming call operation using control based on a combination of the number of waiting calls and a waiting time.

FIG. 11 is a flowchart illustrating an embodiment of an incoming call operation using control based on a combination of the number of waiting calls and a waiting allowable ratio.

FIG. 12 is a flowchart showing an embodiment of an incoming call operation using control based on a combination of a waiting time and a waiting allowance.

FIG. 13 is a flowchart illustrating an embodiment of an incoming call operation using control based on a combination of the number of waiting calls, a waiting time, and an allowable waiting ratio.

FIG. 14 is a conceptual diagram of a conventional system.

[Explanation of symbols]

 Reference Signs List 10 private branch exchange 11 waiting call control processing unit 12 state management table 13 allowable data table 14 operation flag reference table

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Ryoji Satake 3-2-1, Sakado, Takatsu-ku, Kawasaki-shi, Kanagawa Prefecture Fujitsu Network Engineering Co., Ltd. (72) Inventor Nishida ▲ Yoshi ▼ Shin Kanagawa Prefecture Kawatsu-ku 3-2-1 Sakado Inside Fujitsu Network Engineering Limited

Claims (10)

[Claims] In a private branch exchange, a waiting call control processing unit for controlling whether or not a waiting call can be connected, and managing the number of waiting calls, the maximum waiting time, the idle state, and the number of acceptors in real time for each reception extension group. And a state management table whose contents are updated, an allowable data table for managing a preset allowable waiting number of calls, an allowable waiting time, and an allowable waiting ratio for each reception extension group, and a reception management table for each reception extension group. And a preset operation condition, connection condition, and operation flag reference table for managing a connection destination. 2. The method according to claim 1, wherein the waiting call control processing unit stores, in an incoming call from the public network, a number of waiting calls stored in the state management table and a number of waiting calls stored in the state management table in advance. 2. The waiting call control system according to claim 1, wherein the incoming call is controlled by comparing the number of registered waiting calls. 3. The waiting call control processing unit according to claim 1, wherein, for an incoming call from a public network, a waiting time stored in said state management table and a waiting time stored in said permissible data table with respect to a waiting time for said reception group. 2. The waiting call control system according to claim 1, wherein the incoming call is controlled by comparing the waiting times. 4. An incoming call from a public network, the waiting call control processing unit, for an allowable number of waiting calls for a corresponding reception group, a number of reception persons stored in the state management table and an allowable data table. 2. The waiting time method according to claim 1, wherein the number of waiting calls is calculated from a previously registered waiting permission ratio and compared with the number of waiting calls stored in the state management table to control incoming calls. Call control system for incoming calls. 5. In the incoming call from the public network, the waiting call control unit refers to the state management table and the permissible data table to determine whether or not an incoming call can be made to the reception group, and determines the number of waiting calls and the waiting time. 2. The waiting call control system according to claim 1, wherein the incoming call is controlled by the combination. 6. The incoming call control processing unit refers to the state management table and the allowable data table for an incoming call from the public network and determines whether or not an incoming call can be made to the reception group, and determines the number of waiting calls and the allowable waiting ratio. 2. The waiting call control system according to claim 1, wherein the incoming call is controlled by combining the following. 7. The waiting call control processing unit, for an incoming call from a public network, refers to the state management table and the allowable data table to determine whether or not an incoming call to a corresponding reception group is available, and determines a waiting time and an allowable waiting ratio. 2. The waiting call control system according to claim 1, wherein the incoming call is controlled by the combination. 8. The incoming call control processing unit refers to the state management table and the permissible data table to determine whether an incoming call to a corresponding reception group can be accepted for an incoming call from a public network, 2. The call control system according to claim 1, wherein the incoming call is controlled by combining the waiting call rate with the waiting time. 9. The call waiting control unit, when dial-in call from a public network, registers whether the call can be accepted or not in the activation condition of the operation flag reference table, and rejects the call when the call cannot be accepted. 2. The waiting call control system according to claim 1, wherein a BT is transmitted from a station of a public network to a line side caller. 10. The incoming call control processing unit, when an incoming call from a public network is registered in a start-up condition of the operation flag reference table, to connect to a corresponding reception group. 2. The waiting call control system according to claim 1, wherein the destination is changed.