JPH01265765A - Automatic callback connection system - Google Patents

Abstract

PURPOSE:To improve the convenience of a subscriber by providing a monitor means for congestion of an outgoing line, a priority connection means storing caller numbers encountering the congestion to connect the caller number stored with priority, a caller call means to call the caller and a connection means to a relay exchange. CONSTITUTION:When the relay exchange 1 detects the congestion state of an outgoing line 3, the received caller number and the called party number are stored in a storage device 5 with a priority connection flag via a central processing unit 4, connects the line from the caller to a voice notice device 6a to inform the congestion of the outgoing line and to make the caller in standby. When the central processing unit 4 detects an idle state of the outgoing line 3, the unit reads the caller number with the priority connection flag added thereto and the called party number from the storage device 5, starts the connection to the called party from the outgoing line 3 and informs it to the caller that the voice notice device 6b is connected. Thus, the convenience in the subscriber is improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an automatic call return connection system when an outgoing line is congested, and in particular to an automatic call connection system that reconnects a calling subscriber after detecting an empty outgoing line. Regarding the return connection method.

[Conventional technology]

In the past, the only action the exchange could take when it encountered congestion on the outgoing line was to notify the caller using a busy tone or a voice notification device. Callers who encountered congestion were able to connect by dialing again.

(Problem to be solved by the invention) In the conventional two-way connection method during times of congestion, the calling party, who does not know the status of the outgoing line of the exchange, is in control of the connection, resulting in unnecessary repeat calls. There is a problem in that the number of switching equipment must be increased because the number of calls is not repeated and the number of incomplete calls increases.

The object of the present invention is to provide a monitoring means for monitoring the congestion state of the outgoing line in a trunk exchange, and to store the numbers of callers who have encountered congestion and connect the stored callers with priority. By providing a priority connection means for calling a caller, and a caller paging means and a connection means for calling a caller,
It is an object of the present invention to provide an automatic call return connection system that is convenient for subscribers and can be expected to improve the line usage rate and reduce the number of equipment by reducing the number of incomplete calls.

[Means to solve the problem]

The automatic call delay connection system of the present invention includes a detection means for detecting the congestion state of the outgoing line, and a caller number and a called party number in a transit exchange having a billing function based on the detailed recording method of the telephone exchange network. storage means for multiplying by N; connecting means for a voice notification device for notifying the caller of the congestion state of the outgoing line; and outgoing side empty monitoring for monitoring the congestion state of the outgoing line. means, priority connection means for preferentially connecting the unaccumulated callers, caller paging means for calling the caller, and means for notifying that the connection will be made due to the outgoing line being empty. This configuration includes a connection means for the voice notification device and a connection means for calling a called party.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

When the trunk exchange 1 receives the calling party number and the called party number from the preceding subscriber line exchange 2, it performs a connection operation. When a congestion state of the outgoing line 3 is detected, the received calling party number and called party number are stored in the storage device 5 via the central processing unit 4, which allows priority connection. At the same time, the line from the caller is connected to the voice notification device 6a, and the caller is notified that the outgoing line is congested, and the caller is asked to wait.

For example, the content of the notification is assumed to be as follows.

[The line is busy at the moment, so we will not answer your call as soon as the line becomes free. Next, the central processing unit 4 monitors the "idle" state of the outgoing line 3, and when it detects the "idle" state, the central processing unit 4 sends the calling party number and NGT number with the priority connection flag attached from the storage device 5. is read out, and connection to the called party is started from the outgoing line 3.

At the same time, a voice notification device 61) is connected to the calling party to inform them that the connection is now possible.

For example, the content of the notification is assumed to be as follows.

i (, - Now, the line is free, so we will connect as before, so please wait for 5 minutes.) After the above voice notification, change the caller's line to the outgoing line 3.
Connect to. This allows the calling party to communicate with the called party.

[Effects of the Invention゛j As explained above, the present invention includes a monitoring means for monitoring the congestion state of the outgoing line in the trunk exchange, and a system for storing and storing the numbers of callers who have encountered the congestion. By providing a priority connection means for preferentially connecting a caller who has been called, and a caller paging means and a connection means for calling a caller, it is possible to improve the convenience of subscribers and reduce the line usage rate. Second, it has the effect of reducing the number of equipment due to a decrease in incomplete calls.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Trunk exchange, 2-- Subscriber line exchange, 3-- Outgoing line, 4... Central processing unit, 5... Storage device, 6a, 6b-- Voice notification device.

Claims (1)

[Claims] A trunk exchange having a billing function based on a detailed recording method of a telephone exchange network includes a detection means for detecting a congestion state of an outgoing line, a storage means for accumulating a calling party number and a called party number, and a calling party number. connecting means for a voice notification device for notifying callers of the congestion state of the outgoing line; outgoing side empty monitoring means for monitoring the congested state of the outgoing line; A priority connection means for connecting preferentially,
A calling party paging means for calling a calling party, a connecting means for the voice notification device for notifying that a connection is to be made due to an empty outgoing line, and a connecting means for calling a called party. Features an automatic callback connection method.