JP3003301B2 - Private branch exchange - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic private branch exchange comprising a main unit having an exchange function and an extension telephone used in a premises such as an office.

[0002]

2. Description of the Related Art The construction and operation of a conventional private branch exchange will be described with reference to the drawings.

FIG. 4 is a block diagram of a conventional private branch exchange.
FIG. 5 shows a data structure diagram inside the storage means, and FIG. 6 shows a flowchart of the processing.

[0004] In FIG. 4, a main unit 1 of the private branch exchange is shown.
In 00, reference numeral 101 denotes communication path means for controlling connection between arbitrary lines, reference numeral 103 denotes extension interface means for controlling voice communication with an extension telephone and communication of dial data.
Reference numeral 4 denotes storage means for storing data necessary for exchange control, and reference numeral 102 denotes control means for controlling these. In the extension telephone 110, reference numeral 111 denotes interface means for controlling voice communication and data communication with the main device 100,
12 is control means for controlling the operation inside the extension telephone, 11
3 is a dial means. Extension phone 110 is main unit 1
00 are connected.

In FIG. 5, reference numeral 500 denotes a data structure inside the storage means 104, 501 denotes an extension number, and an index indicating a storage area indicated by the extension number.
Reference numeral 2 denotes an unattended transfer destination storage unit that stores a plurality of extension telephones to which a call is transferred when the user is absent (the call is not answered for a certain period of time or longer).

The control means 102 is in a waiting state (step 60).
An incoming call to a certain extension telephone 110 from 1) is detected (step 602). When the extension telephone detects that there is no response for a predetermined time (step 603), the control means 1
In step 02, incoming calls are made in the order of extension telephones stored in the absence transfer destination storage unit 502 of the storage unit 104 (step 605). Therefore, if there is a response within a predetermined time, connection processing between the calling party and the called party is performed (step 608). If there is no response, the incoming call has been received at the next extension telephone (step 607) stored in the absence transfer destination storage unit 502.

[0007]

In the conventional private branch exchange as described above, if there is no response from the extension telephone registered in the forwarding destination storage unit 502, the destination is changed one after another. Could take a considerable amount of time to respond. An object of the present invention is to solve such a problem of the conventional device and to provide means for reducing the time for making a caller wait.

[0008]

In order to achieve the above object, the private branch exchange according to the present invention comprises a main unit and a plurality of extension telephones, wherein the main unit is used for voice communication with the extension telephone and for dial data transmission. Extension interface means for controlling communication, speech path means for controlling connection between arbitrary lines,
An unattended transfer destination storage unit that stores data required for switching control and stores the extension numbers of a plurality of call transfer destinations when the call is absent for each extension telephone, and an average ringing rate per unit time of the latest transfer destination at the transfer destination. A storage unit having an average bell ringing number storage unit for storing the ringing number; and a control unit for controlling the extension interface unit, the communication path unit, and the storage unit. Interface means for communicating with the device, and control means for controlling the internal operation of the extension telephone. The control means of the main device, when a missed call to a certain extension, the average of the unattended transfer destination storage unit of the storage means With reference to the bell ringing number storage unit, the extension telephones with the smallest average ringing ring number per unit time among the plurality of call forwarding destinations when the call is absent are received in order. And it has a configuration for controlling to perform.

[0009]

According to the present invention, when an incoming call arrives at a certain extension and there is no response even after ringing the bell for a certain period of time, it is regarded as absent and registered in the absent transfer destination storage section of the storage means in advance. Among the call forwarding destinations, extensions are received in ascending order of the average number of ringing bells per unit time in the average number of ringing rings in the average bell ringing number storage unit. People do not wait for a long time.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic private branch exchange according to the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of the private branch exchange according to the present invention, FIG. 2 is a data structure diagram of its storage means, and FIG.
2 shows a flow of processing of the main unit of the private branch exchange in the same manner.

In FIG. 1, components having the same functions as in FIG. 4 of the conventional example are denoted by the same reference numerals, and description thereof will be omitted.

100a is a main unit of the private branch exchange, 10
4a is storage means for storing data necessary for exchange control, 1
02a is a control means for controlling these. In FIG. 2, reference numeral 200 denotes a data structure of the storage means 104a, 201 denotes an extension number, and an index indicating a storage area indicated by the extension number, and 202 denotes a telephone number of the extension number indicated by the extension number 201. An unattended transfer destination storage unit capable of registering a plurality of extension numbers when a user transfers an incoming call to another extension telephone when the user is absent. Reference numeral 203 denotes the latest telephone number of the extension number stored in the unattended transfer destination storage unit 202. In an average bell ringing number storage unit that stores how many times the bell rings and responds to an incoming call for a certain period of time, the bell ringing number is previously measured by the control unit 102a during a normal call,
The average value is stored.

The control means 102a is in a waiting state (step 3
01) to an extension telephone is detected (step 302). When the called extension telephone detects that there is no response for more than a predetermined time (step 303), the control means 102
“a” searches the average bell ringing number storage unit 203 for an extension telephone with the smallest average ringing number among the extension telephones stored in the absence transfer destination storage unit 202 of the storage unit 104a, and makes a call to the extension telephone. (Step 30
5). Therefore, if there is a response within a predetermined time, connection processing with the called party is performed (step 308). If there is no response within a certain period of time, the extension telephone having the next lowest average number of ringing tones stored in the absence transfer destination storage unit 202 (step 30).
7) Incoming call is received. If there is still no response within a certain period of time, incoming calls are made to the extension telephone (step 307) with a smaller average number of ringing bells.

In the above embodiment, the main unit 100
Although the description has been made with respect to the extension telephone 110 and the extension telephone 110, one extension telephone may be integrated with the main unit.

[0016]

As explained above, according to the private branch exchange of the present invention, it is possible to respond to an incoming call more quickly by receiving an incoming call in order from an extension telephone having a smaller average number of ringing bells as a call forwarding destination. Service will be improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a private branch exchange according to an embodiment of the present invention.

FIG. 2 is a data structure diagram of the storage means.

FIG. 3 is a processing flowchart of the same.

FIG. 4 is a block diagram of a conventional private branch exchange.

FIG. 5 is a data structure diagram of the storage means.

FIG. 6 is a flowchart of the processing.

[Explanation of symbols]

 Reference Signs List 100a Main device 101 Call path means 102a Control means 103 Extension interface means 104a Storage means 110 Extension telephone 111 Interface means 112 Control means 113 Dial 200 Data structure of storage means 104a 201 Extension number 202 Absence transfer destination storage section 203 Average bell ringing frequency Memory

Claims (1)

(57) [Claims] 1. A main unit comprising a main unit and a plurality of extension telephones, said main unit comprising an extension interface unit for controlling voice communication and dial data communication with the extension telephone, and a communication path unit for controlling connection between arbitrary lines. And an unattended transfer destination storage unit that stores data necessary for switching control and stores the extension numbers of a plurality of call transfer destinations when the call is absent for each extension telephone, and an average of the transfer destinations per unit time recently Storage means having an average bell ringing number storage unit for storing the number of ringing rings, and control means for controlling the extension interface means, the communication path means, and the storage means, wherein the extension telephone is a dial means; It comprises interface means for communicating with the main unit and control means for controlling the internal operation of the extension telephone. Refer to the absent transfer destination storage unit and the average bell ringing number storage unit of the storage unit at the time of an incoming call, and, among the plurality of call transfer destinations when the call is absent, the extension with the smallest average number of ringing rings per unit time in recent time A private branch exchange that controls incoming calls in order from the telephone.