JPH04344797A - Automatic dialing distribution system - Google Patents

Abstract

PURPOSE:To realize the automatic dialing distribution system in which real time processing in a host device is not required so as to relieve the processing of the host device. CONSTITUTION:In the automatic dialing distribution system in the telephone system provided with an exchange main device 20 making automatic dialing to plural lines corresponding to an external automatic dialing command and distributing a reply to the dialing automatically to plural extension terminals 10 and with a host device 40 giving an automatic dial command to the exchange main device 20, the host device 40 sends an automatic dial command and transmission information with respect to an extension terminal being a distribution destination to the exchange main device 20, which buffers the received transmission information to execute the automatic dialing and the automatic distribution processing and the exchange main device 20 sends buffered transmission information to the extension terminal 10 being a distribution destination when the automatic distribution is confirmed.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention relates to a telephone system in which a switching device automatically makes a call to a plurality of lines in response to a call request from a host device, and a response to the call is automatically distributed to a plurality of extension terminals by the switching device. The present invention relates to an automatic distribution system, and particularly relates to an automatic transmission distribution system that eliminates the need for real-time processing in a host device and reduces the processing of the host device.

0002

[Background Art] Conventionally, automatic call distribution has been used to automatically make calls to multiple lines in response to call requests from a host device such as a computer connected to a private branch exchange, and automatically distribute responses to the calls to multiple extension terminals. Telephone systems employing this method are known. A conventional telephone system that employs this automatic call distribution method operates as follows.

[0003] First, a host device issues a call request by instructing a private branch exchange to specify a plurality of telephone numbers to call. In response to this call request, the private branch exchange automatically makes calls to multiple lines using multiple telephone numbers. When there is a response to this call, the private branch exchange distributes the responded line to the extension terminals accommodated by the private branch exchange. Thereafter, the host device is notified of the distribution destination extension terminal. In response to this notification, the host device transmits information to be transmitted to the distribution destination extension terminal, such as the telephone number, name, and other destination information, to the private branch exchange. When the private branch exchange receives this transmission information from the host device, it notifies the distribution destination extension terminal of this information. Here, the extension terminal includes an extension telephone connected to a private branch exchange, a data terminal device connected to the extension telephone, and the like.

0004

[Problems to be Solved by the Invention] However, in the conventional device as described above, the extension terminal of the distribution destination is determined when the destination responds and automatic distribution processing is performed. It is not possible to send transmission information to an extension terminal in advance. Furthermore, since it is necessary for the extension terminal to start a corresponding call immediately after being distributed, when the host device receives notification of the distribution destination extension terminal from the private branch exchange, it must immediately send transmission information to the private branch exchange. . For this reason, the host device is required to have sufficient processing capacity to enable real-time processing. This leads to the necessity of using an expensive host device, resulting in the problem that the entire system becomes expensive.

[0005]The present invention has been made in view of these conventional problems, and aims to provide an automatic transmission distribution method that eliminates the need for real-time processing in the host device and reduces the processing load on the host device. shall be.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention automatically makes a call to a plurality of lines in response to an automatic call instruction from the outside, and sends a response to the call to a plurality of extension terminals. In an automatic call distribution method in a telephone system that includes a switching device that automatically distributes calls and a host device that gives the automatic call instruction to the switching device, the host device sends the automatic call instructions to the extension terminal of the distribution destination. The transmission information is sent to the exchange device, the exchange device stores the received transmission information, executes the automatic call and automatic distribution processing, and when the automatic distribution is confirmed, sends the transmission information to the extension terminal of the distribution destination. It is characterized in that the stored transmission information is transmitted from the exchange device.

[0007]

[Operation] Transmission information for the distribution destination extension terminal is transmitted from the host device to the switching device at the same time as an automatic call instruction. The switching device stores transmission information for this distribution destination extension terminal, and this transmission information is transmitted from the switching device to the distribution destination extension terminal at the time when automatic distribution processing is performed. This eliminates the need for real-time processing in the host device, and significantly reduces the processing load on the host device.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below based on the drawings.

FIG. 1 is a block diagram showing an embodiment of a telephone system constructed by applying an automatic call distribution system according to the present invention. In FIG. 1, the telephone system of this embodiment accommodates a plurality of extension telephones 10 and is connected to a plurality of telephone lines (office lines) 30.
0, connected to the exchange main device 20, and connected to the exchange main device 20
The host device 40 is comprised of a computer or the like that gives an automatic call instruction to the user.

The exchange main device 20 has a plurality of extension telephones 1.
0, a plurality of line interfaces (line I/F) 21 each connected to a plurality of telephone lines 30, a plurality of line interfaces (line I/F) 23 each connected to a plurality of telephone lines 30, and generating hold tone, ringback tone, etc. , a common trunk circuit 24 commonly used within the system, a time division switch circuit (TDSW) 22 that performs switching connections between the plurality of extension interfaces 21, the plurality of line interfaces 23, and the common trunk circuit 24, and the plurality of extension interfaces. 21 and the time division switch circuit 22, a central processing unit (CPU) 26, a memory 25 connected to the central processing unit 26 and storing various information, and a host device 40.
The host interface (host I/F) 27 provides an interface between the computer and the central processing unit 26.

Next, the general operation of this embodiment will be explained with reference to the sequence chart shown in FIG.

FIG. 2 shows an extension to which an extension telephone is connected, a host device 40 that gives an automatic call instruction, and an exchange main device 2.
0 and a line connected to the exchange main device 20.

First, the host device 40 is the exchange main device 20.
If an automatic call instruction is given to the host device 40, a call command indicating this is sent from the host device 40 to the exchange main device 20. This call command includes the destination telephone number and display data to be displayed on a display (not shown) of the distribution destination telephone when the destination telephone responds.

When the exchange main device 20 receives a call command from the host device 40, it automatically calls a plurality of lines using the destination telephone number included in the call command.

The exchange main device 20 also sends the display data included in the outgoing command to a device within the exchange main device 20, for example.
The data is stored in a display buffer provided within the memory 25.

When a call is made to the line from the exchange main unit 20, a ringback tone is returned from the line, and when the other party's telephone responds to this response, the exchange main unit 20 is notified of this response.

In response to this response, the exchange main device 20 responds by
A distribution process is executed to automatically distribute this response to vacant extension telephones.

The exchange main device 20 also notifies the host device of the result of this automatic distribution, and then reads the display data for the distribution destination extension telephone stored in the display buffer and notifies the distribution destination extension telephone.

When there is a response from the distribution destination extension telephone, the distribution destination extension telephone and the line from which the response was received are connected, and the extension and the line are placed in a communication state.

According to such a configuration, the host device 40
Once a call request is given to the exchange main equipment 20, a series of operations such as detecting the other party's response, distribution to extensions, and display data transmission are executed on the exchange main equipment 20 side. The host device is no longer required to perform real-time processing of immediately transmitting display data in response to a response, and even a computer that is not capable of real-time processing can be used as the host device.

The operation of this embodiment will be further explained with reference to the flowcharts shown in FIGS. 3 and 4.

The flowcharts shown in FIGS. 3 and 4 mainly show the operation of the exchange main device 20. In addition,
In FIGS. 3 and 4, the circled portions marked A are interconnected to form one flowchart. First, when a calling command including data such as the destination dial number and the LCD display data to be displayed on the LCD of the distribution destination telephone when the destination responds is received from the host device 40 (step 101), when the destination is responding, the distribution destination extension phone LC
Display data buffer 1 displays the LCD display data to be displayed on D.
03 (step 102), and a call is made by sending the dial number included in the call command to the line (step 104).

Next, the telephone line 30 is monitored to detect a change in the state of the telephone line 30 after the call has been made, thereby detecting the dialing result (step 105).

[0024] Here, if the other party does not respond and a predetermined period of time has elapsed, that is, if a timeout occurs,
Alternatively, if it is detected that the other party is busy, that is, the status is notified to the host device 40 along with the destination information and information indicating the result,
The transmission is canceled (step 107).

When it is detected in step 105 that the other party has responded, an extension telephone that can accept this response is searched for (step 108). If an extension telephone that can accept calls is found as a result of this search (step 109), an extension call is made to this extension telephone (step 110), and at the same time, information indicating the destination and the distribution destination extension telephone corresponding to this destination are sent. Notify the host device 40 of the information shown (
Step 111).

Next, the display data previously stored in step 102 is retrieved from the display data buffer (step 1
12), send this display data to the distribution destination extension telephone,
This display data is displayed on the LCD of the distribution destination extension telephone (step 113).

When there is an extension response from this distribution destination extension telephone (step 114), the originating line and this extension are connected (step 115).

As described above, in this embodiment, the display data corresponding to the destination is passed from the host device 40 to the exchange main device 20 in advance, and the display data is buffered in the exchange main device 20 and transmitted from the destination. When a response is received, this buffered display data is sent to the exchange main unit 2.
Since the configuration is configured so that the notification is sent from 0 to the distribution destination extension telephone, the host equipment is no longer required to perform real-time processing of immediately transmitting display data in response to a response from the exchange main equipment. This allows this type of device to be constructed at low cost.

[0029]

[Effects of the Invention] As explained above, according to the present invention, the host device sends the transmission information for the distribution destination extension terminal to the switching device along with an automatic call instruction, and the switching device stores the received transmission information. , the automatic call and automatic distribution processing is executed, and when the automatic distribution is confirmed, the exchange device transmits the stored transmission information to the distribution destination extension terminal, so the host device cannot perform real-time processing. This eliminates the need for real-time processing, and even a computer that is not capable of real-time processing can be used as a host device.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a telephone system constructed by applying an automatic call distribution system according to the present invention.

FIG. 2 is a sequence chart explaining the operation of the embodiment shown in FIG. 1;

FIG. 3 is a flowchart explaining the operation of the embodiment shown in FIG. 1;

FIG. 4 is a flowchart explaining the operation of the embodiment shown in FIG. 1;

[Explanation of symbols]

10 Extension telephone 20 Exchange main device 21 Extension interface (extension I/F) 22
Time division switch circuit (TDSW) 23 Line interface (line I/F) 24 Common trunk circuit 25 Memory 26 Central processing unit (CPU) 27
Host interface (host I/F) 30 Office line (telephone line) 40 Host device

Claims (1)

[Claims] 1. A switching device that automatically calls a plurality of lines in response to an automatic call instruction from the outside and automatically distributes a response to the call to a plurality of extension terminals; In an automatic call distribution method in a telephone system, the host device sends transmission information for the distribution destination extension terminal to the switching device together with the automatic call instruction, and the switching device The received transmission information is stored, the automatic transmission and automatic distribution processing is executed, and when the automatic distribution is confirmed, the exchange device transmits the stored transmission information to the extension terminal of the distribution destination. This is an automatic transmission distribution system that is characterized by: