JPH03247062A - Automatic incoming call transfer system - Google Patents

Abstract

PURPOSE:To attain the taking request of a caller with a called party without redialing by allowing a control circuit to gives a command to a connection circuit to connect an incoming line and an outgoing line when a state detection circuit detects a reply of a caller destination telephone set and informs it to the control circuit. CONSTITUTION:An incoming call detection circuit 11 detects an incoming call to an incoming call line 20 and informs it to a control circuit 16 and a connection circuit 13 connects the incoming line 20 with an outgoing line 30 in response to a command of the control circuit 16. The dialing circuit 14 dials automatically a telephone number commanded by the control circuit 16 and a state detection circuit 15 monitors the outgoing line 30 to detect the state of reply, calling and talking of the caller telephone set and informs it to the control circuit 16 and a storage circuit 17 stores plural transfer destination telephone numbers and the criterion or the like. When the state detection circuit 15 detects the reply of the caller telephone set and informs it to the control circuit 16, the control circuit 16 gives a command to the connection circuit 13 to connect the circuit to a predetermined transfer destination or to start an automatic answering telephone set circuit. Thus, the talking request of the caller with the called party is attained without redialing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a transfer method for incoming telephone calls.

[Prior Art] In a conventional automatic call transfer system, a caller A makes a call to a telephone T8 of a called party B, and the telephone Ta receives the call from the telephone T. If transfer to Tel 1 is registered, the transfer is automatically made to the telephone Tel.

[Problem to be Solved by the Invention] However, when the transfer destination telephone TCI does not respond due to absence etc., or when the caller A is already on a call with another telephone TD, the caller A is only given a ringing tone. In the end, the purpose of the call could not be achieved, and the caller A had to call the callee B's telephone T again after a while.

This invention was made in order to solve the above-mentioned conventional problems, and it provides an automatic call transfer method that allows caller A to request a call to callee B without having to call again. The purpose is to provide

[Means for Solving the Problems 1] In the automatic call transfer system according to the present invention, when the incoming call detection circuit detects an incoming call to the incoming call line, the control circuit transfers the first forwarding destination telephone number stored in the memory circuit. The reading and calling circuit automatically sends the first forwarding destination phone number to the calling line and makes a call, and the status detection circuit detects the status of the destination phone and notifies the control circuit. When it detects that there is no response for a certain period of time or that the call is busy, a predetermined condition is determined, the nth transfer destination phone number stored in the memory circuit is read out, and the calling circuit transfers the nth transfer to the calling line. Automatically sends the destination phone number and makes a call.
The status detection circuit detects the status of the destination phone and notifies the control circuit, and then repeats the same procedure according to instructions from the control circuit, and the status detection circuit detects the response of the destination phone and notifies the control circuit. When notified, the control circuit instructs the connection circuit to connect the incoming line and outgoing line.

In addition, when the control circuit detects that the destination phone does not respond for a certain period of time or is busy, it makes a predetermined condition judgment, and the control circuit stops the transfer operation.
This system activates the answering machine circuit and causes the incoming line to respond to the answering machine.

[Operation] In this invention, it is automatically detected that the telephone of the forwarding destination telephone number CI does not respond for a certain period of time or that the telephone is busy, and the forwarding destination is transferred to the telephone of another preset telephone number Cn. Automatically change. Alternatively, the forwarding operation is canceled and the answering machine responds (equivalent to changing the forwarding destination to the answering machine).

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, in which 10 is an automatic call forwarding device, 20 is an incoming call line, and 3 o
is an outgoing line, 40 is a telephone, and automatic call forwarding device 1
0 is an incoming call detection circuit 11, an answering machine circuit 12. Connection circuit 139 Transmission circuit 14. State detection circuit 15. Control circuit 1
6. It is composed of a memory circuit 17.

The incoming call detection circuit 11 has a function of detecting an incoming call to the incoming call line 20 and notifying the control circuit 16.
has the function of sending and recording messages like a conventional answering machine, the connection circuit 13 has the function of connecting the incoming line 20 and the outgoing line 3o according to instructions from the control circuit 16, and the outgoing circuit 14 has the function of The control circuit 16 has a function of automatically sending out a telephone number instructed by the control circuit 16 to make a call, and the state detection circuit 15 monitors the calling line 30 to detect the state of the destination telephone, such as answering, calling, or talking. It has a function of notifying the control circuit 16, and a memory circuit 17 has a function of storing a plurality of forwarding destination telephone number 2 determination conditions and the like.

Next, the operating procedure of the automatic call transfer connection in the embodiment shown in FIG. 1 will be explained with reference to the flowchart shown in FIG. In addition, ■～0
represents each step shown in FIG.

The incoming call detection circuit 11 detects the incoming call to the incoming call line 20 and notifies the control circuit 16 (2). The control circuit 16 is the memory circuit 1
■ Read out the first transfer destination telephone number C1 stored in 7. In response to an instruction from the control circuit 16, the calling circuit 14 automatically sends the first transfer destination telephone number C3 to the calling line 30 and makes the call. The state detection circuit 15 monitors the outgoing line 3o, detects the state of the destination telephone, and notifies the control circuit 16 (2). When the control circuit 16 detects that the destination telephone does not respond for a certain period of time (2), it performs condition determination 1 based on predetermined determination conditions stored in the memory circuit 17 (2).

Also, if it detects that the destination phone is busy,
, Condition judgment 2 is carried out based on the predetermined judgment conditions stored in the memory circuit 17. As a result of the condition determination, if it is determined that the forwarding destination should be changed to the telephone number C1, the forwarding destination telephone number of the telephone number Cn stored in the memory circuit 17 is read out. The transmitting circuit 14 is connected to the transmitting line 30
The forwarding destination telephone number Cn is automatically sent to and the call is made. Thereafter, the steps ① to ② can be repeated in the same manner according to instructions from the control circuit 16. In steps ■ and ■, condition judgments 1 and 2
As a result, if it is determined that it is an answering machine, the control circuit 16
stops the transfer operation, activates the answering machine circuit 12, and causes the incoming call line 20 to respond to the answering machine [phase]. In step (2), when the control circuit 16 detects that the destination telephone has responded (2), it issues a connection instruction to the connection circuit 13, and the connection circuit 13 connects the incoming line 20 and the outgoing line 30.

Here, condition judgment 1 is a condition such as changing the forwarding destination selection order or changing forwarding destination/answering response depending on the day of the week, time, etc., and condition judgment 2 is a condition such as changing the forwarding destination selection order depending on the day of the week, time, etc. Possible conditions include redialing, changing the forwarding destination, or changing the answering machine. Further, the fixed period of time until a non-response is detected may also depend on the day of the week, time, forwarding destination telephone number, etc. Further, when the answering machine is used, the answering message sent from the answering machine circuit 12 may be switched depending on the forwarding destination telephone number or whether a non-response is detected or a busy call is detected.

It is clear that the above operating principle is the same whether it is realized by wiring logic control or by software control.

Furthermore, the same effect can be achieved by incorporating the above operating principle into a private branch exchange, a switch within a public communication network, or the like.

[Effects of the Invention 1] As explained above, in the present invention, when the incoming call detection circuit detects an incoming call to the incoming line, the control circuit reads the first forwarding destination telephone number stored in the memory circuit and sends the call to the calling circuit. automatically sends the first forwarding destination phone number to the calling line and makes the call, the status detection circuit detects the status of the destination phone and notifies the control circuit, and the control circuit does not respond for a certain period of time;
Alternatively, when it detects that a call is in progress, a predetermined condition is determined, the nth forwarding destination phone number stored in the memory circuit is read out, and the calling circuit automatically sends the nth forwarding destination phone number to the calling line. The state detection circuit detects the state of the destination telephone and notifies the control circuit.
The same procedure is repeated according to instructions from the control circuit, and when the status detection circuit detects a response from the destination telephone and notifies the control circuit, the control circuit instructs the connection circuit to connect the incoming and outgoing lines. In addition, when the control circuit detects that the destination telephone does not respond for a certain period of time or is busy, it makes a predetermined condition judgment, stops the transfer operation, and activates the answering machine circuit. Since the incoming call line is configured to answer the call, the forwarding destination is dynamically and automatically changed, so there is an advantage that the called party B can always make the caller A achieve the purpose of the call.

Furthermore, the response probability can be improved by changing the selection order of forwarding destination telephone numbers, changing the forwarding destination, answering by answering, etc., depending on the day of the week, time of day, etc.

In particular, if callee B has phone number C,,C2,...C
This is effective in cases where the user has moved to a location where the user's location is unclear, or where the busy rate of the first transfer destination telephone is high.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.
FIG. 2 is a flowchart for explaining the operating procedure of the embodiment shown in FIG. In the figure, 10 is an automatic call transfer device, 11 is an incoming call detection circuit,
12 is an answering machine circuit, 13 is a connection circuit, 14 is an origination circuit, 15 is a state detection circuit, 16 is a control circuit, 17 is a memory circuit, 2o is an incoming line, 30 is an origination line, and 40 is a telephone set.

Claims (2)

[Claims] (1) An incoming call detection circuit that detects incoming calls to the incoming line, a memory circuit that stores multiple forwarding destination telephone numbers and judgment conditions, a calling circuit that automatically sends the forwarding destination phone number to the outgoing line, and the above-mentioned calling line. a state detection circuit that detects the answering, ringing, or talking state of the destination telephone by monitoring the line;
In an automatic call transfer device comprising a connection circuit for connecting an incoming line and an outgoing line, and a control circuit, when the incoming call detection circuit detects an incoming call to the incoming line, the control circuit is stored in the storage circuit. The calling circuit automatically sends the first forwarding destination telephone number to the calling line and making a call, and the state detection circuit detects the state of the destination telephone. Notifies the control circuit that the destination telephone does not respond for a certain period of time;
Alternatively, when it is detected that a call is in progress, a predetermined condition is determined and the nth number stored in the memory circuit is
reads a forwarding destination telephone number, and the calling circuit automatically sends the nth forwarding destination telephone number to the calling line and makes a call;
The state detection circuit detects the state of the destination telephone and notifies the control circuit, and thereafter, the same procedure is repeated according to instructions from the control circuit, and the state detection circuit detects a response of the destination telephone. The automatic call transfer system is characterized in that when the control circuit is notified of the call transfer, the control circuit instructs the connection circuit to connect the incoming line and the outgoing line. (2) An incoming call detection circuit that detects an incoming call to the incoming line, a memory circuit that stores multiple forwarding destination telephone numbers and judgment conditions, a calling circuit that automatically sends the forwarding destination phone number to the outgoing line, and the above-mentioned calling line. a state detection circuit that detects the answering, ringing, or talking state of the destination telephone by monitoring the line;
In an automatic call forwarding device that is equipped with a connection circuit that connects an incoming line and an outgoing line, a control circuit, and an answering machine circuit that sends and records messages, the control circuit detects that the destination telephone does not respond for a certain period of time, or An automatic call transfer method characterized in that when a call is detected, a predetermined condition is determined, the control circuit stops the transfer operation, activates an answering machine circuit, and causes the incoming line to respond to the answering machine.