JPH1051553A - Communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the uncomfortable feeling of a call originating subscriber or the useless occupation of a subscriber's line at communication equipment provided with an incoming call transfer function. SOLUTION: When a call-terminating subscriber ISDN terminal 130 receives a call setting request from a call-originating subscriber terminal 110, the call setting request is sent out to a transfer destination subscriber thermal 140 by using a call terminating subscriber number stored in a transfer destination telephone number storage device 132, counting due to a non-response detection timer 133 is started, and a response from the transfer destination subscriber terminal 140 is waited. At such times, when the non-response detection timer 133 times out prior to the response concentrating transfer call connection from the transfer destination subscriber terminal 140 is received by the call terminating subscriber ISDN terminal 130, the ISDN terminal 130 sends out a call disconnecting request to the transfer destination subscriber terminal 140, disconnects a transfer call to the transfer destination subscriber terminal 140, sends out the call connection response to the call originating subscriber terminal 100 and connects the call of the call originating subscriber terminal 110, through a signal transmitter/receiver 131 to an automatic answering device 134.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a communication device using a plurality of channels.

[0002]

2. Description of the Related Art Conventionally, in a communication device using a plurality of channels, for example, as shown in Japanese Patent Application Laid-Open No. 5-219236, when an incoming call is received on one B channel, the other B channel is used. A method for performing call forwarding to a pre-registered transfer destination terminal has been proposed, and the call forwarding method will be described below with reference to FIG.

In FIG. 3, 201, 202 and 203
Is a subscriber line, 210 is a calling subscriber terminal, 220 is an exchange, 230 is a destination subscriber ISDN terminal, and 240 is a destination subscriber terminal. Also, the called subscriber ISDN terminal 230
It has a signal transmitting / receiving device 231 and a transfer destination number storage device 232, and the transfer destination number storage device 231 stores the number of the subscriber terminal of the transfer destination in advance.

In the above configuration, a call setting request from the calling subscriber terminal 210 is transmitted to the called subscriber ISDN via the subscriber line 201, the exchange 220, and the subscriber line 202.
When sent to the terminal 230, the signal transmitting / receiving device 231 sends a call setting request to the destination subscriber terminal 240 based on the destination subscriber number stored in the destination number storage device 232.

[0005] A call setting request from the called subscriber ISDN terminal 230 is received by the destination subscriber terminal 240 via the subscriber line 202, the exchange 220, and the subscriber line 203, and the destination subscriber terminal 240 When the call setup request is answered, the response signal is sent to the subscriber's IS via the subscriber line 203, the exchange 220, and the subscriber line 202.
It is sent to the DN terminal 230.

When the called subscriber's ISDN terminal 230 receives this response signal, the called subscriber's ISDN 230 sends a response signal to the calling subscriber's terminal 210 and the signal transmitting / receiving device 231 communicates with the destination subscriber's terminal 240. Call transfer is realized by connecting both communication paths of the subscriber terminal 210, and the calling subscriber terminal 210 and the transfer destination subscriber terminal 2 are connected.
40 is configured to be in a call state via the called subscriber's ISDN device.

[0007]

However, in the above-mentioned conventional apparatus, when the transfer destination subscriber terminal 240 does not answer at the time of call transfer, the transfer destination subscriber terminal 240 does not transmit unless the calling subscriber terminal 210 sends a disconnection signal. , The caller cannot respond to the request that the caller wants to contact the called party, and the callee ISDN terminal 230 receives the call disconnection request from the transferee subscriber terminal 240 and Even after the call is disconnected, the call from the calling subscriber terminal 210 will not be cut off unless the calling signal is sent from the calling subscriber terminal 210 or the timer of the exchange 220 is not timed out. It takes a long time to disconnect the call of the caller terminal 210, and causes the calling subscriber to wait even though the call transfer is stopped.
There is a problem that the calling subscriber is uncomfortable and the subscriber line is wastefully occupied for a long time.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a communication apparatus capable of preventing discomfort and unnecessary occupation of a subscriber line in a calling subscriber, and transmitting a caller's requirements to a called party. It is.

[0009]

In order to achieve the above object, according to the present invention, at least two channels are used, and when one channel receives an incoming call, the other channel is used in advance. In the communication device for performing the call transfer to the registered transfer destination terminal, after the start of the call transfer,
When the transfer destination terminal does not respond during the predetermined time,
An answering machine is provided which performs an answering operation on a channel on which an incoming call is received.

According to a second aspect of the present invention, there is provided a communication apparatus which uses at least two channels and transfers a call to a transfer destination terminal registered in advance using another channel when a call is received on one channel. After receiving the call transfer, upon receiving a call disconnection request from the transfer destination terminal,
An answering machine is provided which controls the above-mentioned answering machine and performs an answering machine operation for a channel which has received an incoming call.

According to a third aspect of the present invention, the message responding means records a message from a caller during a message answering operation.

Therefore, according to the first aspect of the present invention, 1
If there is an incoming call on one channel and a call is forwarded to a transfer destination terminal registered in advance using another channel, it is monitored whether the transfer destination terminal responds after the start of the call transfer,
As a result, if it is determined that the transfer destination terminal does not answer during the predetermined time, the answering unit performs an answering operation on the channel on which the call was received, so that the call cannot be transferred to the caller. Can tell.

According to the second aspect of the present invention, when an incoming call is received on one channel and the incoming call is transferred to a transfer destination terminal registered in advance using another channel, the contact information is transferred after the start of the incoming call transfer. It monitors whether a call disconnection request from the terminal is received, and as a result, when it is determined that the call disconnection request from the transfer destination terminal has been received, the answering machine responds to the channel on which the call was received. By doing
The caller can be notified that the call cannot be transferred.

According to the third aspect of the present invention, when the control means controls the answering machine to perform the answering operation on the channel on which the call has been received, the answering machine sends the message from the sender. By recording, it is possible to leave a message for the caller to be conveyed to the callee.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic functional block diagram showing an electrical configuration of a communication apparatus according to an embodiment of the present invention and a connection state with another apparatus, and FIG. 2 shows an operation control at the time of call transfer in the communication apparatus. It is a flowchart shown.

In FIG. 1, 101, 102 and 103
Is a subscriber line, 110 is a calling subscriber terminal, 120 is an exchange, 130 is a destination subscriber ISDN terminal, and 140 is a destination subscriber terminal. The calling subscriber terminal 110 is connected to the called subscriber ISDN terminal 130 via the subscriber line 101, the exchange 120 and the subscriber line 102, and the transfer destination subscriber terminal 140 is connected to the subscriber line 103, the exchange 120 and the subscriber. Connected via a user line 102.

The called subscriber ISDN terminal 130 includes a signal transmission / reception device 131, a transfer destination number storage device 132, a no-response detection timer 133, and an answering machine 134. For interconnecting each channel of the subscriber line 102 and connecting to each unit.
The transfer destination number storage device 131 stores the number of the transfer destination subscriber terminal in advance, and stores a no-response detection timer 133.
Indicates that the destination terminal 140 counts a period of no response after a call is forwarded for a predetermined period of time. The answering machine 134 sends a response message to the channel of the connected subscriber line 102, records a business message, and the like. Is performed.

The operation of the communication apparatus in the state of being connected as described above at the time of incoming call transfer will be described with reference to the flowchart shown in FIG.

The called subscriber's ISDN terminal 130 receives a call setting request from the calling subscriber's terminal 110 (step S1).
Then, the called subscriber ISDN terminal 130 sends a call setting request to the called subscriber terminal 140 using the called subscriber number stored in the forwarding telephone number storage device 132 (step S).
At the same time, the non-response detection timer 133 starts counting (step S3), and waits for a response from the destination subscriber terminal 140. In this state, the signal transmitting / receiving device 13
1 monitors the no-response detection timer 133 (step S
4).

Then, in a state of waiting for a response from the destination subscriber terminal 140, before the destination subscriber ISDN terminal 130 receives a response related to the transfer call connection from the destination subscriber terminal 140, the no-response detection timer 133 is activated. When the timeout occurs (step S4), the ISDN terminal 130 sends a call disconnection request to the destination subscriber terminal 140 (step S7), and disconnects the transfer call to the destination subscriber terminal 140 (step S8). Then, a response to the call setting request (call connection response) is sent to the calling subscriber terminal 110 (step S9), and the call of the calling subscriber terminal 110 is sent to the signal transmitting / receiving device 13.
1 to the answering machine 134 (step S1).
0).

In a state of waiting for a response from the destination subscriber terminal 140, the signal transmitting / receiving device 131 sets the destination subscriber terminal 1 before the timeout of the no-response detection timer 133.
Upon receiving the call disconnection request from the server 40 (step S5),
The destination subscriber's ISDN terminal 130 is
Is stopped and the transfer call is disconnected (step S
Along with 8), a response to the call setting request (call connection response) is sent to the calling subscriber terminal 110 (step S9), and the call of the calling subscriber terminal 110 is connected to the answering machine 134 via the signal transmitting / receiving device 131. (Step S10).

Further, in a state of waiting for a response from the destination subscriber terminal 140, the called subscriber ISDN terminal 130 receives a response to the call setting request from the destination subscriber terminal 140 before the no-response detection timer 133 times out. (Step S6), the called subscriber ISDN terminal 130 sends a response to the call setup request (call connection response) to the calling subscriber terminal 110 (step S11), and the called subscriber I
The signal transmitting / receiving apparatus 1 transmits the B1 channel and the B2 channel of the subscriber line 102 connected from the SDN terminal 130 to both the calling subscriber terminal 110 and the transfer destination subscriber terminal 140.
The connection is made via the connection 31 (step S12).

Therefore, according to the above operation control, when the transfer destination subscriber terminal 140 does not respond to the incoming call during the transfer of the incoming call, or when the transfer destination subscriber terminal is not in a state capable of receiving the call, the calling subscriber terminal 110 By sending a response message or recording a message, the caller can be notified that the call cannot be forwarded and the caller's message can be left. Cellular and PHS (Personal Handy Phone Syste
This is effective when a mobile communication terminal having a large call loss rate of a call transfer call (might be unable to receive a call depending on the place of use) as shown in m) is used.

[0025]

As described above, according to the first aspect of the present invention, when the transfer destination terminal does not respond to the incoming call during the transfer of the incoming call, the response message is sent to the calling terminal, thereby making the outgoing call. The caller can be notified that call transfer is not possible, so that it is possible to prevent the calling terminal from calling for a long time and to eliminate the discomfort of the caller, and to avoid unnecessary use of the subscriber line for a long time. Occupation can be prevented.

According to the second aspect of the invention, when the transfer destination terminal is not in a state capable of receiving a call at the time of call transfer, a response message is sent to the caller terminal so that the call transfer to the caller can be performed. It is possible to prevent the caller from making long-term calls at the calling side terminal, thereby eliminating discomfort at the caller and preventing the subscriber line from being occupied for a long time. Can be.

According to the third aspect of the present invention, when the transfer destination terminal does not respond to the incoming call during the transfer of the incoming call, or when the transfer destination terminal is not in a state in which the incoming call can be received, a response message is transmitted to the calling terminal. By recording the message, the caller can be notified that the call cannot be forwarded, and the message of the caller can be left. This can prevent discomfort at the caller and prevent the subscriber line from being wastefully occupied for a long time, and can communicate the caller's requirements to the callee.

[Brief description of the drawings]

FIG. 1 is a schematic functional block diagram showing an electrical configuration of a communication device according to an embodiment of the present invention and a connection state with another device.

FIG. 2 is a flowchart showing operation control at the time of call forwarding in the communication device.

FIG. 3 is a schematic functional block diagram showing an electrical configuration of a communication device as a conventional example and a connection state with another device.

[Explanation of symbols]

 101, 102, 103 subscriber line 110 calling subscriber terminal 120 exchange 130 called subscriber ISDN terminal 131 signal transmitting / receiving device 132 transfer destination number storage device 133 non-response detection timer 134 answering machine 140 transfer destination subscriber terminal

Claims (3)

[Claims] 1. Use at least two channels,
A communication device for transferring an incoming call to a pre-registered transfer destination terminal by using another channel when an incoming call is received on one channel, comprising: A communication device, comprising: an answering machine that performs an answering operation on a channel on which an incoming call is not received. 2. Using at least two channels,
In a communication device for transferring a call to a transfer destination terminal registered in advance using another channel when a call is received on one channel, a call disconnection request from the transfer destination terminal is received after the start of the call transfer. A communication device provided with an answering unit that performs an answering operation on a channel on which an incoming call is received. 3. The answering machine according to claim 1, wherein:
3. The communication device according to claim 1, wherein a message from a caller is recorded.