JPS61113352A - Incoming call distribution system - Google Patents

Abstract

PURPOSE:To attain connection in an impartial order by recording the order of idle terminal devices and the order of incoming lines awaiting an incoming call in an exchange. CONSTITUTION:When one of terminal devices 14a-14p is finished for talking and a channel switch 10 is restored, terminal idle information is given from a line circuit 13i to a central processing unit 20 to check whether or not a waiting trunk line exists. When no waiting trunk line exists, a terminal number is recorded to a memory 31 and displayed. When the waiting trunk line exists, the number recorded at first is read from the memory 31 to erase the recorded display of the trunk line number to connect the line circuit 13i of an idle terminal device and a trunk line trunk 12j via the channel switch 10.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an incoming call distribution system, particularly in an exchange accommodating terminals, in which incoming calls from a plurality of incoming lines constituting a group are distributed to a plurality of terminals constituting a group. This relates to an incoming call distribution method when connecting.

(Prior Art) Generally, when connecting a telephone to a reception desk such as a seat reservation reception desk on a train or an airplane, a plurality of reception desks having the same function are grouped together, and a plurality of central office lines are connected only to these reception desks. A private branch exchange is used that has an extension representative function that connects incoming calls from this group of office lines only to the group of reception desks.

In this case, the central office line is a plurality of incoming dedicated lines corresponding to the representative number of the subscriber exchange, and the number of lines is determined with the exchange. On the other hand, although there is a maximum number of reception desks for terminals, depending on the incoming traffic at that time, etc.
The number of reception desks that should be operated within a group is determined each time. Therefore, when connecting from the caller to the reception desk,
When a vacant incoming dedicated line is selected by the subscriber exchange and the call arrives at the distribution private branch exchange, this private branch exchange scans the empty display of the reception desks arranged in a predetermined order and selects an empty reception desk. are doing. At this time, the scanning start point of the reception desk's busy display is randomly changed each time, so that in the long run, a specific reception desk will not receive calls.

However, according to this method, the order in which the reception desks became vacant is not recorded, so even though there are incoming calls to other reception desks, there are reception desks that have been vacant for a long time. Even if there is, in some cases there is an inconvenience that the next call can be made immediately after the previous call ends. Also, if a reception desk is busy and multiple incoming calls are waiting, and then a vacant reception desk becomes available and the call is connected to this vacant reception desk, the central office line selection will be applied to the reception desk. Since it uses the same method as the selection operation, it has the disadvantage that the connection order does not necessarily match the waiting order.

(Object of the invention) The object of the present invention is to eliminate the above-mentioned drawbacks, and to record the order of vacant terminals (reception desks) or the order of incoming lines (office lines) waiting for incoming calls. To provide an incoming call distribution system that allows calls to be received fairly for both callers and callers.

(Structure of the Invention) In the incoming call distribution system of the present invention, in an exchange that connects incoming calls from a plurality of incoming lines constituting a group to a plurality of terminals constituting the group, when all the terminals are busy, the incoming call Common number recording means for sequentially recording the incoming line numbers of calls and sequentially recording the terminal numbers of the terminals that become vacant when there are no waiting calls; and a common number recording means that indicates that the incoming line numbers are recorded in this number recording means. a first display means; a second display means indicating that a terminal number is also recorded in the number recording means; and when there is an incoming call and the terminal number is displayed on the second display means, the terminal number is recorded in the number recording means; a first connection requesting means for requesting a connection to the first numbered terminal, and an incoming line having the first number recorded in the number recording means when an empty terminal is available and is displayed on the first displaying means. and a second connection requesting means for requesting a connection. In the above structure, the number recording means also includes an identification means for identifying the last number recorded by the number recording means by adding a flag to the last number.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention, in which the exchange is an electronic exchange under storage program control. In FIG. 1, office lines 11a to 11t constitute a group, and are dedicated lines for incoming calls from the affiliated telephone office to the representative number of this electronic exchange (subscriber). Central line 21
Similarly, L~21m is a central office line that is used for incoming or outgoing calls from another representative number or independent number of this subscriber from the affiliated telephone office. Therefore, the station line 11JL ~ 11t
are the central office line trunks 121L to 12t, each dedicated to incoming calls.
The office lines 211L to 2111fl are connected to the communication path switch 10 via office line trunks 221 to 22m for both incoming and outgoing calls, respectively. On the other hand, a group of terminals 148 to 14p are connected to the communication path switch 10 via line circuits 13 & to 13p, respectively, and another group of terminals 24jL to 24q are connected to the communication path switch 10 via line circuits 23a to 23g, respectively. has been done. In addition, the central processing unit 20 is connected to the central office line trunks 12a to 12t, 22a to 22m.
, the communication path switch 10, and the line circuits 13a to 13
9.23a to 23q are connected via buses to perform exchange control. Note that a storage device 30 and an input/output device 40 are connected to the central processing unit 20.

Furthermore, in addition to the conventionally provided data memory, the storage device 30 is provided with a number recording memory 31, a two-bit station number recording display 32, and a terminal number recording display 33.
Incoming calls from central office lines 11a to 11t are sent to terminals 14a to 14p.
It consists of an exchange program that connects only to

FIGS. 2(a) and υ) illustrate an embodiment of the number recording memory 31, central line number recording display 32, and terminal number recording display 33 provided in the storage device 30 of the embodiment of FIG. 1, respectively. It is a diagram. The number recording memory 31 is the central line 11a.
A number recording section in which the waiting station number of an incoming call from the group of terminals 11t to 11t or an empty terminal number among the group of terminals 14a to 14p is recorded, and a flag section indicating that the record was recorded most recently. The number records are recorded in order from the bottom, and a flag is moved to the recorded number each time it is recorded. Furthermore, when the record reaches the top, it has an endless configuration in which the next record is used from the bottom. Note that reading is performed from the first recorded item,
The record after reading is erased. Note that both the waiting line number and the vacant terminal number have not yet been recorded at the same time in this number recording memory 31, and its recording capacity may generally be the same as the number of terminals 14a to 14p. Office lines 11a to 11t
If there are few incoming calls from the terminals 148 to 14p and there are vacant terminals, this terminal number is recorded in the number recording memory 31, and at the same time, the presence of vacant terminals is displayed on the terminal number recording display 33. In addition, when the number of terminals 14a to 14p is small, or when this terminal is making a call to another terminal of this exchange or a central office line and it is difficult to accept incoming calls on central office lines 11a to 11t, the number recording memory 31 station line 1
The waiting number of 1a-114 is recorded, and at the same time, the station line number record display 32 displays whether there is a waiting station line.

FIGS. 3(a) and 3(b) show the switching operation when a call is received from the central office line 111L-11t and when terminals 148 to 14p become available, in the embodiments of FIGS. 1 and 2, respectively. , which is a flowchart focusing in particular on the operation of the present invention.

First, referring to FIG. 3(・), in the embodiment of FIG.
・；□Proceeding with the explanation of the incoming call operation,
When there is an incoming call request from one of the office lines 11a to 11t xxi, incoming call information is provided from the office line trunk 121 to the central processing unit 20 (step (2)). Central processing unit 20
Checks whether there is an empty terminal display in the terminal number record display 33 (step ■). If there is no vacant terminal, the office line number i is recorded in the number recording memory 31, and the latest record display flag is moved and added to this record (step ■).
. Next, there is a stone (step ■) that indicates that there is a waiting station on the station line number record display 32. On the other hand, in step (2), if there is an empty terminal, it is first checked from the number recording memory 31 whether there is a number still recorded in the record (step (2)), and if there is no record, the terminal number record display 33 is erased. (Step ■). Next, as in the case where the record still remained in step ①, the central office line trunk 121 of the incoming central office line 111,
The central processing unit 2 connects the line circuit 13j of the terminal j read in step (■) via the communication path switch 10.
0 (step ■). As a result of the above, the station line 11i with the incoming call is connected to the terminal 14j, which has been vacant from the beginning.

Next, with reference to FIG. 3), we will explain the operation when the terminal in use during a call in the embodiment of FIG. 1 becomes free.
When -9141 of the terminals 14a to 14p ends the call and the call path switch 10 is restored, the line circuit 13
Terminal availability information is given to the central processing unit 20 from i (
Step ■). The central processing unit 20 displays the station line number record 3
Check whether there is a waiting station line display in 2 (step @)
. Therefore, if there is no waiting station line, number recording memo I731
K terminal number j is recorded, and the latest record display flag is moved and added to this record (step ◎). Next, the terminal number record display 33 displays that there is a vacant terminal (step 0). On the other hand, in step @, if there is a waiting station line, the first recorded number j is read from the number recording memory 31 and the record of that number is erased (step 0>). Check whether there is a recorded number (Step @), and if there is no record, erase the station line number record display 32 (Step O).Next, as in the case where the record still remains in Step @, The line circuit 131 of the vacant terminal 141 and the central office line trunk 12J of the central office line j read in step 2 are connected to the communication path switch 1.
request the central processing unit 20 to connect via 0 (
Step @). As a result of the above, the vacant terminal 14i is connected to the central office line 11j that has been waiting from the beginning.

Above, we have described the case where the exchange that has the extension representative function is an electronic exchange, but this exchange does not necessarily have to be an electronic exchange, and if it is a common control type exchange,
Anything is fine. For example, it is clear that the present invention can be practiced even if the exchange is a crossbar exchange. Also,
Although the number recording memory 31, the office line number recording display 32, and the terminal number recording display 33 are assumed to utilize a part of the storage device 30, some of them may be provided independently of the storage device 30. Furthermore, although a flag was provided to display the latest record recorded in the number recording memory 31, it may also be possible to give an address to the recording position and always store the address of the latest record separately. .

(Effects of the Invention) As explained in detail above, the present invention is capable of connecting an incoming line that forms part of a line and a reception desk that forms a group, so that incoming calls for waiting are connected in the order of waiting as soon as the reception desk becomes available. As soon as an incoming call arrives, the receiving desks are connected to the receiving desks that were free from the beginning, and the effect is that the calls are connected in an extremely fair order to both the caller and the receiving desks.

Note that even if there is a corresponding incoming line group and a reception desk group in one exchange, call processing can be performed independently by separately providing a number recording memory and a station line and terminal number recording display corresponding to these groups. It is clear that distribution control is possible.

Furthermore, in the embodiments of the present invention, the incoming lines forming a group are office lines corresponding to one representative number. Needless to say, there is no problem.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2(a)
2(b) is a diagram illustrating an example of the number recording memory of the embodiment shown in FIG. 1, FIG. a) and (b)
) are flowcharts for the embodiment of FIG. 1 when an incoming call is connected and when the reception desk becomes vacant. 11a-11t, 21a-21m...Station line, 1
2JL~12t, 221L~22m...Station line trunk, 13a~13p, 231L~23q...
...Line circuit, 14a-14p. 241L~24q...Terminal (reception desk), 10.
...Call path switch, 20 ... Central processing unit, 30 ... Storage device, 31 ... Number recording memory, 32 ... Central office line Number record display, 3
3... Terminal number record display, 40... Input/output device. To m-, agent Susumu Uchihara, patent attorney, ゛・、っ・ 荊 2 times (1) (Reno porridge (α) 3 Fig.

Claims (2)

[Claims] (1) In an exchange that connects incoming calls from multiple incoming lines constituting a group to multiple terminals constituting the group, when all the terminals are busy, the incoming line numbers of the incoming calls are sequentially recorded, and the incoming calls are waiting. a common number recording means for sequentially recording the terminal numbers of the terminals that become vacant when there is no call; a first display means for indicating that the incoming line number is recorded in this number recording means; a second display means indicating that the terminal number is recorded in the means; and a second display means indicating that there is an incoming call;
a first connection requesting means for requesting connection to the terminal having the first number recorded in the number recording means when there is an indication on the displaying means; and second connection requesting means for requesting connection to the incoming line having the first number recorded in the number recording means. (2) The incoming call distribution system according to claim 1, further comprising identification means for identifying the last number recorded by the number recording means by adding a flag to the last number.