JPH07162530A - System for limiting arrival of excess transfer call - Google Patents

Abstract

PURPOSE:To warrant the arrival of an incoming call by a representative number of a transfer destination representative group, that is, the arrival of a call to be arrived directly when lots of overflow calls take place by transferring overflow calls by a 2nd representative number and allowing a transfer destination to discriminate whether or not the representative number is the 2nd representative number and to decide the acceptance of the incoming call. CONSTITUTION:When all subscriber terminal equipments of a representative group 2 are busy, the calls are transferred to a 2nd representative number of a representative group 3. On the other hand, a transfer call discrimination section 9 reads information of the representative group 3 registered in advance from a storage device 11 and starts a transfer call limit execution section 10 based on the information of a transfer call incoming limit when the section 9 discriminates the incoming call to be a call using the 2nd representative number, that is, the transfer call. The transfer call limit execution section 10 retrieves a state of the call arrived at present to a subscriber terminal equipment of the representative group 3 to restrict the incoming call from the subscriber terminal equipment 1 transferred from the representative group 2 when number of the incoming calls by the 2nd representative number, that is, number of incoming transfer calls reaches a limit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overflow transfer call reception restriction method upon reception of a subscriber terminal representative group of a stored program control type electronic exchange.

[0002]

2. Description of the Related Art In a conventional overflow call transfer system, as shown in FIG. 2, a transfer execution unit 26 in a central control unit 25 of an electronic exchange uses representative information of a representative group 22 in accordance with information registered in a storage unit 27 in advance. If all the subscriber terminals are busy, it is judged whether or not the call is transferred to another representative group 23, and the transfer is executed. 21 is a subscriber terminal,
The subscriber terminal 21 and the representative groups 22 and 23 are connected via a network 24.

Next, the operation will be described. First, the subscriber terminal 2 is connected to the representative group 22 in which all the subscriber terminals are busy.
When 1 receives an incoming call, the transfer execution unit 26 in the central control unit 25 of the electronic exchange accommodating the representative group 22 reads the information of the representative group 22 registered in the storage device 27 in advance, and the information from the subscriber terminal 21 is read. When it is determined that the call can be transferred, the call is transferred to the representative number of the transfer destination representative group 23.

Next, the call transferred to the representative group 23 via the network 24 arrives at one of the vacant subscriber terminals in the representative group 23. As a conventional technique related to this type of call transfer method, for example, Japanese Patent Publication 3-1
The technique described in Japanese Patent No. 45857 is known.

[0005]

In this conventional overflow call transfer method, although there is a function of judging whether transfer is possible at the transfer source, there is no function of judging whether the call can be received at the transfer destination, and therefore a large number of overflows occur. When the call is transferred, there is a problem that it is difficult for the representative group, which is the transfer destination, to directly receive a call that is not an overflow transfer call and should be handled by the representative group.

The present invention has been made to solve such a problem, and in order to guarantee the incoming call of the direct incoming call to the forwarding destination representative group, the incoming call of the overflow forwarded call is restricted to limit the incoming call of the overflow forwarded call. Aim to get.

[0007]

According to the overflow transfer call termination restriction system of the present invention, when a call is about to arrive at a representative number of a representative group consisting of a plurality of subscriber terminals, all the subscriber terminals are busy. In the overflow call transfer method of the storage program control method electronic exchange that transfers the call to another representative group, the transfer destination of the overflow call is determined by the second representative number, and the transfer call is determined by the transfer destination. It is a thing. Further, it is provided with an overflow call transfer means for enabling the incoming call restriction of the transfer call in the transfer destination representative group.

[0008] Further, a transfer means for giving a second representative number to the transfer destination representative group and performing transfer from the transfer source representative group with the second representative number, and the transfer destination representative group by the transfer means. Is provided with an incoming call limiting means for limiting incoming calls by the second representative number.

[0009]

According to the present invention, the overflow call is transferred by the second representative number, and the transfer destination determines whether or not the call is the incoming call by the second representative number, that is, the transfer call. Allows you to decide.

[0010]

The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of an overflow transfer call termination restriction system according to the present invention. In FIG. 1, 1 is a subscriber terminal, 2 and 3 are representative groups, which are connected via a network 4. And
Central control unit 5 of electronic exchange accommodating representative group 2
Includes a transfer execution unit 6 for performing transfer when all subscriber terminals are busy, and the transfer execution unit 6 is connected to the storage device 7 by an information line for reading information of the representative group 2.

On the other hand, the central control unit 8 of the electronic exchange accommodating the representative group 3 limits the incoming call of the forwarded call and the forwarded call determination unit 9 which determines whether or not the incoming call is an incoming call. The transfer call restriction execution unit 10 is provided, and the transfer call determination unit 9 is connected to the storage device 11 by an information line for reading the information of the representative group 3. Then, these constitute overflow call transfer means for transferring the overflow call by the second representative number and limiting the arrival of the transfer call in the transfer destination representative group.

Further, the transfer call judging section 9 in the central control unit 8
Cooperates with the storage device 11 to form a transfer means for giving a second representative number to the transfer destination representative group and performing transfer from the transfer source representative group with the second representative number. Further, the transfer call restriction execution unit 10 in the central control unit 8 constitutes an incoming call restricting means for restricting an incoming call by the representative group of the transfer destination by the transferring means by the second representative number.

Next, the operation of the embodiment shown in FIG. 1 will be described. First, when the subscriber terminal 1 tries to receive a call to the representative group 2 and all the subscriber terminals of the representative group 2 are busy, the transfer execution unit 6 stores the information of the representative group 2 registered in advance from the storage device 7. After reading out and determining transfer of the call from the subscriber terminal 1, the call is transferred to the second representative number of the representative group 3 via the network 4.

On the other hand, the transfer call judgment unit 9 reads the information of the representative group 3 registered in advance from the storage device 11 and judges whether the incoming call is by the representative number or the second representative number. , The second representative number, that is, when it is determined that the call is a transfer call, the transfer call restriction executing unit 10 is activated together with the information of the transfer call reception restriction value. This transfer call restriction execution unit 10 retrieves the status of the call currently received by the subscriber terminal of the representative group 3 and finds that the number of incoming calls by the second representative number, that is, the number of transferred calls has reached the limit value. Then, the subscriber terminal 1 transferred from the representative group 2
Restrict incoming calls from.

As described above, in the present invention, the transfer call judgment unit 9 in the central control unit 8 reads the information of the representative group 3 from the storage unit 11 and transfers it from the representative group 2 to the second representative number of the representative group 3. It is determined that the above transfer call is an overflow transfer call. The transfer call restriction execution unit 10 searches for the status of the call currently received by the subscriber terminal of the representative group 3, and if the number of overflow transfer call arrivals has reached the limit value, a new overflow transfer call arrival is received. regulate.

[0016]

As described above, according to the present invention, the overflow call is transferred using the second representative number, and the transfer destination is transferred to the second representative number.
Since it is possible to determine whether or not the incoming call is based on the representative number, that is, whether the incoming call is a forwarded call or not, it is possible to determine whether or not the incoming call is possible.
This has an effect that it is possible to guarantee the incoming call to the transfer destination representative group by the representative number, that is, the arrival of the call that is about to be received directly.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an overflow transfer call termination restriction system according to the present invention.

FIG. 2 is a block diagram showing an example of a conventional overflow call transfer method.

[Explanation of symbols]

 1 Subscriber Terminals 2, 3 Representative Group 4 Network 5 Central Control Unit 6 Transfer Execution Unit 7 Storage Device 8 Central Control Device 9 Transfer Call Judgment Unit 10 Transfer Call Restriction Execution Unit 11 Storage Device

Claims (3)

[Claims] 1. When the call is about to arrive at a representative number of a representative group consisting of a plurality of subscriber terminals and all the subscriber terminals are busy, the call is transferred to another representative group. In the overflow call transfer method of the program control type electronic exchange, the overflow call is transferred by the second representative number, and the transfer destination judges whether or not the transfer call is the incoming call by the second representative number, and the incoming call is received. An overflow transfer call termination restriction method characterized by determining whether or not to allow. 2. When the call is about to arrive at a representative number of a representative group consisting of a plurality of subscriber terminals and all the subscriber terminals are busy, the call is transferred to another representative group. The overflow call transfer method of the program control type electronic exchange is characterized in that overflow call transfer means is provided for transferring the overflow call by the second representative number and limiting incoming of the transfer call of the transferee representative group. Overflow transfer call termination restriction method. 3. A storage for transferring a call to another representative group when all the subscriber terminals are busy when a call is about to arrive at a representative number of a representative group consisting of a plurality of subscriber terminals. In the overflow call transfer method of the program control type electronic exchange, transfer means for giving a second representative number to the representative group of the transfer destination, and performing transfer from the representative group of the transfer source with the second representative number, An overflow transfer call incoming call limiting method, characterized in that the representative group of the transfer destination by the transfer means comprises incoming call limiting means for limiting incoming calls by the second representative number.