JP2002033850A - Off-talk communication system, off-talk communication method, and recording medium for recording off-talk communication program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an off-talk communication system that can continue off- talk communication even in the case of a speech by a telephone and conduct two-way off-talk communication and to realize an off-talk communication method and a recording medium for recording an off-talk communication program. SOLUTION: Communication processing sections 16, 25 establish an off-talk communication channel based on a communication protocol that can identify a communication source from a communication destination to conduct two way communication. Modems 15, 24 act like communication interfacing to transmit data of the two way communication via a transmission medium. Furthermore, the communication processing section 16 establishes a speech line by the communication protocol and applies connection control to the off-talk communication channel so as not to interrupt the off-talk communication channel even at telephone transmission reception when a prescribed speech mode is a speech mode using the speech line.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an off-talk communication system for performing communication using an unused state of a telephone subscriber line, an off-talk communication method, and a recording medium on which an off-talk communication program is recorded.

[0002]

2. Description of the Related Art Conventionally, during a non-talking time zone (when not in use) of a subscriber line which is a calling line of a subscriber telephone service,
2. Description of the Related Art An off-talk communication service for establishing an off-talk communication line via a subscriber line, which is a transmission medium between a telephone station and a subscriber's home, and mainly transmitting voice information to a telephone subscriber is performed. This off-talk communication is known as wired broadcasting for distributing local information from agricultural cooperatives and fishing cooperatives, and is one-way, one-to-many communication from an information providing center that provides information to each subscriber.

FIG. 8 is a block diagram showing a configuration of a conventional off-talk communication system in an analog subscriber line. Hereinafter, the configuration and operation of the conventional off-talk communication system will be described with reference to FIG. In the conventional off-talk communication system shown in FIG. 8, a telephone 11 and a line switching device for controlling the connection of the off-talk communication line based on the call state of the telephone 11 are provided at the subscriber home 10 for the off-talk communication service and the subscribed telephone service. 110, and both the telephone set 11 and the line switching apparatus 110 are connected to the off-talk station apparatus 120 provided in the central office 20 via the subscriber lines A1a and A1b. The off-talk station device 120 is connected to the subscriber lines A1a and A1b or the subscriber lines C1a and C1a.
A device for switching the subscriber lines A1a and A1b to either the off-talk communication line side or the subscriber line side based on the state of the telephone line 1b, and accommodates the subscriber line of the telephone 11 via the subscriber lines C1a and C1b. It is connected to the exchange 22, and is connected via the communication line A2 to the information transmitting device 130 of the information providing center 30 which is the information distribution source of the off-talk communication service. The exchange 22 is connected to the telephone network 101 via the trunk line A3.

In the line switching device 110, 111 is connected to the subscriber lines A1a and A1b, detects a voltage change between the subscriber lines A1a and A1b, which is a call signal from the telephone 11, and turns off the relay RL3. Similarly, a voltage fluctuation detection relay control circuit that detects a disconnection of a communication line based on a voltage fluctuation between the subscriber lines A1a and A1b and turns on the relay RL3. Reference numeral 112 denotes a subscriber line during off-talk communication when the relay RL3 is on. A low-level sound cut-off circuit 113 attenuates a signal having a certain power or less for removing noise from a signal input from A1a and A1b and having a DC component cut by a capacitor C.
This is a preamplifier for amplifying the output of the speaker 12 and outputting the amplified signal to the speaker 114.

In the off-talk local station 120, 12
1 detects the use state of the subscriber line by voltage fluctuation between the connected subscriber lines A1a and A1b or between the subscriber lines C1a and C1b, and based on the detected state, the subscriber lines A1a and A1b; A voltage fluctuation detection relay control circuit for controlling connection of a relay RL4 for connecting a subscriber line C1a, C1b to be connected to a subscriber line or a capacitor C to be connected to an off-talk communication line, 122 is an information provider. This is a line amplifier that amplifies a signal such as a voice signal input from the center 30 via the communication line A2 and outputs the signal to the subscriber lines A1a and A1b via the capacitor C when the relay RL4 is in the off-talk communication line connection state.

The voltage change detection relay control circuit 121 detects a call from the telephone set 11 due to a voltage change between the subscriber lines A1a and A1b, or receives a call from the exchange 22 to the telephone set 11 due to a voltage change between the subscriber lines C1a and C1b. At the time of call detection, in order to put the subscriber line of the telephone 11 into a talking state,
The relay RL4 is controlled so as to connect the subscriber lines A1a, A1b to the subscriber lines C1a, C1b. On the other hand, when disconnection of the telephone line is detected by the telephone set 11 due to a voltage fluctuation between the subscriber lines A1a and A1b, or when the subscriber lines C1a and C1
When disconnection of the communication line is detected by the exchange 22 due to the voltage fluctuation between 1b, the relay RL4 is controlled so that the subscriber lines A1a and A1b and the capacitor C are connected in order to perform off-talk communication to the subscriber home 10.

In the conventional off-talk communication system of FIG. 8 described above, when the subscriber line of the telephone set 11 is not used, the relay RL3 of the line switching device 110 is turned on, and the relay RL4 of the off-talk station device 120 joins. When the subscriber lines A1a, A1b and the capacitor C are connected, the off-talk communication line between the line switching device 110 and the off-talk station device 120 is in a connected state (established state), and the information transmission device 130 of the information providing center 30 The output audio signal is the subscriber line A1
a, transmitted to the subscriber's home 10 via A1b and reproduced by the speaker 114. On the other hand, the line switching device 110
When the use of the subscriber line of the telephone set 11 is detected by the voltage fluctuation detection relay control circuit 111 of the first embodiment and the voltage fluctuation detection relay control circuit 121 of the off-talk station device 120, the relay RL3 is turned off, and the subscriber line A1a is transmitted by the relay RL4. , A1b and the subscriber lines C1a and C1b are connected to make the subscriber lines communicable, and off-talk communication is interrupted.

[0008]

However, the above-mentioned conventional off-talk communication system has a problem that the off-talk communication must be interrupted when a subscriber of the off-talk communication service talks by telephone. Further, off-talk communication is one-way communication from the information providing center to the subscriber's house, and cannot perform two-way communication.

[0009] The present invention has been made in view of such circumstances, and an object of the present invention is to enable off-talk communication to be continued even when a telephone call is made, and to perform bidirectional off-talk communication. It is an object of the present invention to provide an off-talk communication system, an off-talk communication method, and a recording medium on which an off-talk communication program is recorded.

[0010]

According to a first aspect of the present invention, there is provided a telephone which uses a subscriber line accommodated in an exchange as a telephone line, In an off-talk communication system including an in-home device and an in-house device that establishes an off-talk communication line via a transmission medium between the switching unit and the telephone when not in use, the in-home device includes a communication source and a communication destination. A first communication processing unit that establishes the off-talk communication line based on an identifiable communication protocol and performs two-way communication; and data that is bi-directionally communicated by the first communication processing unit via the transmission medium. First communication interface means for performing a communication interface process for transmitting data through the communication device, wherein the intra-station device communicates with the home device based on the communication protocol. Second communication processing means for establishing an off-talk communication line and performing two-way communication, and the communication interface processing for transmitting data bi-directionally communicated by the second communication processing means via the transmission medium And a second communication interface means for performing

[0011] According to a second aspect of the present invention, in the first aspect of the present invention, the in-home device further comprises: a communication line establishing means for establishing a communication line on the communication protocol; Line connection control means for controlling connection of the off-talk communication line so as not to disconnect the off-talk communication line even when calling the telephone, in a call mode using the call line established by the line establishment means. It is characterized by doing.

According to a third aspect of the present invention, in the first or second aspect, the communication protocol is an Internet Protocol. The invention according to claim 4 is the invention according to claim 3,
The telephone line establishing means establishes a telephone line by Voice over Internet Protocol transmitting voice by Internet Protocol communication.

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the off-talk communication line established between the in-home device and the intra-office device is connected to the switching means. Are connected by the multi-line connection function.

According to a sixth aspect of the present invention, there is provided a telephone which uses a subscriber line accommodated in the exchange means as a telephone line,
An off-talk communication method in an off-talk communication system including an in-home device and an in-station device for establishing an off-talk communication line via a transmission medium between the switching unit and the telephone when the subscriber line is not used, The off-talk communication method includes a step in which the home device establishes the off-talk communication line and performs two-way communication based on a communication protocol capable of identifying a communication source and a communication destination, and data that is bi-directionally communicated by this step. A process in which the home device performs a communication interface process for transmitting via the transmission medium, and based on the communication protocol, the office device establishes the off-talk communication line between the home devices, A step of performing communication, and the station apparatus transmits data that is bidirectionally communicated by the step, via the transmission medium. Characterized in that it comprises a step of performing the communication interface processing order.

According to a seventh aspect of the present invention, in the method of the sixth aspect, the off-talk communication method comprises the steps of: establishing a communication line by the home device on the communication protocol; A step of controlling the connection of the off-talk communication line so that the in-home device does not disconnect the off-talk communication line even when calling the telephone in a call mode using a communication line established on the communication protocol. And further characterized by:

[0016] The invention according to claim 8 is a telephone which uses a subscriber line accommodated in the exchange means as a telephone line.
Off-talk communication for performing off-talk communication in an off-talk communication system including an in-home device and an in-station device that establishes an off-talk communication line via a transmission medium between the switching means and the telephone when the subscriber line is not used. In a computer-readable recording medium recording a program, the off-talk communication program establishes the off-talk communication line based on a communication protocol capable of identifying a communication source and a communication destination, and performs a two-way communication. And causing the computer to execute a process of performing a communication interface for transmitting data bidirectionally communicated through the transmission medium via the transmission medium.

According to a ninth aspect of the present invention, in the invention of the eighth aspect, the off-talk communication program includes a process for establishing a communication line on the communication protocol and a process for establishing a predetermined communication mode on the communication protocol. And performing a process of controlling the connection of the off-talk communication line so as not to disconnect the off-talk communication line even at the time of calling of the telephone in the case of the call mode using the communication line established in step (c). It is characterized by. As a result, the above-described off-talk communication system can be realized using a computer.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an overall configuration of an off-talk communication system in an analog subscriber line according to a first embodiment of the present invention. In this figure, reference numeral 10 denotes a subscriber home of the off-talk communication service and the subscribed telephone service, 11 denotes a telephone set at the subscriber home 10, 12, 13 denotes a home device installed at the subscriber home 10, and 13 denotes a home device. Off-talk communication line connection control and IP
(Internet Protocol) Communication processing for performing bidirectional off-talk communication (hereinafter, referred to as IP off-talk communication) based on an IP that can identify a communication source and a communication destination by an address, and a subscriber who is a transmission medium of a telephone Line A1a, A
This is a line switching device that performs a communication interface process for performing bidirectional data transmission via 1b, and inputs and outputs data and the like transmitted and received by IP off-talk communication by an input / output device 12 connected thereto. Note that the telephone 11 transmits and receives data such as voice information by a subscriber telephone or data such as voice information by IP off-talk communication.

Reference numeral 20 denotes a central office of a telephone station that provides an off-talk communication service to the subscriber home 10 and a subscribed telephone service.
Is connected to the line switching device 13 via the subscriber lines A1a and A1b, which are transmission media between the station building 20 and the subscriber's home 10, and controls connection of the off-talk communication line. And a communication interface process for performing bidirectional data transmission via the subscriber lines A1a and A1b, and a communication service for performing IP offtalk communication. This is an exchange accommodating a subscriber line, which is a telephone line for use, and is connected to the subscriber lines A1a and A1b via the IP off-talk station device 21 and to the telephone network 101 via the relay line A3. The IP off-talk station device 21 is connected to the IP network 102 via the communication line A4. It should be noted that the IP off-talk station internal device 21 uses the subscriber lines A1a, A1b when the telephone 11 communicates with the subscriber line.
To the exchange 22.

Reference numeral 30 denotes an information providing center which is an information distribution source of an off-talk communication service connected to the IP off-talk station device 21 via the communication line A2, and includes an information transmitting device 31 for controlling the transmission of the information. The information transmission device 31 includes a server capable of bidirectional communication by IP communication and a storage device such as a hard disk device or a magneto-optical disk device, and is connected to the IP network 102 via a communication line A5. Note that, with this configuration, the IP off-talk station internal device 21 can receive the IP
It can be connected to the network 102.

FIG. 2 is a block diagram showing a more detailed configuration of the off-talk communication system according to the first embodiment shown in FIG. Hereinafter, the off-talk communication system according to the first embodiment will be described in detail with reference to FIG. In the following description, a line used for telephone communication by the telephone set 11 is referred to as a telephone line, and the above-mentioned subscriber line is used as a telephone line during a subscription telephone service.

Telephone 1 provided at subscriber's home 10 in FIG.
1 is a line switching device 1 via the subscriber lines B1a and B1b.
3 and the line switching device 13 is connected to the subscriber line A1a,
A1b: IP off-talk intra-station device 21 of station building 20 via A1b
Connected to The IP off-talk station device 21 is connected to the exchange 22 via the subscriber lines C1a and C1b, and is connected to the information transmitting device 31 via the communication line A2 via the HUB / router 32.

In the line switching device 13, reference numeral 14 denotes a connection between the subscriber lines B1a and B1b to be connected or the subscriber line A1.
By detecting a voltage fluctuation between a and A1b, for example, a deviation or return from a steady voltage, or a propagated voltage pulse, connection of the telephone 11 is recognized by recognizing a transition of a call state such as a call or disconnection of a call line. Notify the communication processing unit 16 and relay RL according to the instruction from the communication processing unit 16
Voltage fluctuation detection relay control circuit for performing connection control of No. 1, 15
Is a modem for performing mutual conversion between a digital signal and an analog signal in order to perform bidirectional data transmission via the subscriber lines A1a and A1b. Reference numeral 16 denotes a voltage fluctuation based on a preset call mode of the telephone set 11. Detection relay control circuit 1
Relay RL1 according to the transition of the call state notified from the communication device 4
Connection instruction, IP processing for performing IP off-talk communication, and Vo for transmitting voice by IP communication to realize a telephone function.
IP (Voice over IP) processing, WWW (World Wide We
b) IP such as search / circulation processing, e-mail transmission / reception processing, etc.
And a communication processing unit that performs processing for implementing various applications. The input / output device 12 is a keyboard,
Input devices such as a mouse and CRT (Cathode Ray Tub
e), a display device such as a liquid crystal display device, and a storage device such as a hard disk device or a magneto-optical disk device. Note that the telephone call mode of the telephone 11 preset in the communication processing unit 16 is one of a subscriber telephone service mode and a VoIP telephone service mode.

In the IP off-talk station apparatus 21, 2
Reference numeral 3 denotes a subscriber line of the telephone set 11 by detecting a voltage fluctuation between the connected subscriber lines A1a and A1b or between the subscriber lines C1a and C1b, for example, a deviation or return from a steady voltage, or a voltage pulse to be propagated. , A voltage fluctuation detection relay control circuit for recognizing the transition of the use state of the relay RL2 and controlling connection of the relay RL2. A modulation / demodulation device for performing mutual conversion.
This is a communication processing unit that performs IP processing for performing P off-talk communication.

The above-mentioned communication processing units 16 and 25 may be realized by dedicated hardware.
Communication processing unit 1 constituted by a PU (central processing unit)
A program for realizing each of the functions 6 and 25 may be loaded into a memory and executed to realize the function.

Next, the operation of the off-talk communication system according to the first embodiment will be described. FIGS. 3 and 4 are sequence diagrams for explaining the processing flow of the off-talk communication system shown in FIG. Referring to these figures,
An operation in which off-talk communication is continued even when a telephone call is made using the telephone 11 will be described. First, the operation when making a call from the telephone 11 will be described with reference to FIG. First, in a non-call state in which the telephone set 11 is on-hook, the terminals t3, t6, p3, and p6 of the relay RL1 are connected to the terminals t1, t4, p1, and p4, respectively.
Terminals s3 and s6 of L2 are connected to terminals s1 and s4, respectively. As a result, between the communication processing unit 16 and the communication processing unit 25, the off-talk communication line using the IP is switched to the subscriber line A1.
a, A1b and the modems 15 and 24 to establish a connected state (established state).
1 is bidirectionally transmitted and received (step SP1). In the communication processing unit 16, a VoIP telephone service mode is set in advance as a telephone call mode of the telephone 11.

First, in FIG. 3, when the telephone 11 is off-hook (step SP2), the line switching device 13
The voltage fluctuation detection circuit 14 detects a voltage fluctuation between the subscriber lines B1a and B1b, which is a call signal from the telephone 11,
The communication processing unit 16 is notified of the call from the telephone 11. Next, the communication processing unit 16 to which the call is notified is sent to the relay RL.
VoIP telephone processing is performed while the off-talk communication line connection state is continued without giving the connection instruction of step 1 (step S).
P3).

Next, the audio signal output from the telephone set 11 is input to the communication processing section 16 and output to the modem 15 as an IP packet by VoIP telephone processing executed by the communication processing section 16. The IP packet input to the modem 15 is converted into an analog signal and output, and is transmitted via the subscriber lines A1a and A1b.
4 and restored to a digital signal,
5 is input. The IP input to the communication processing unit 25
The packet is sent to the IP network 102 or the information transmitting device 3 based on the destination IP address assigned to the packet itself.
1 is output. Similarly, an IP packet transmitted from the other party of the VoIP telephone is received by the communication processing unit 25 from the IP network 102 or the information transmitting device 31 and output to the modem 24, and the subscriber lines A1a and A1b and the modem The signal is input to the communication processing unit 16 via the communication terminal 15 and is output to the telephone 11 as an audio signal. In this way, VoI
The call state by the P telephone service is realized in a state where the IP off-talk communication is continued (step SP4).

Next, when the telephone 11 is turned on (step SP5), the voltage fluctuation detecting circuit 14 of the line switching device 13 detects a voltage fluctuation between the subscriber lines B1a and B1b, which is a disconnection signal from the telephone 11, and , Communication processing unit 1
6 is notified of the disconnection of the telephone line. Next, the communication processing unit 16 to which the disconnection is notified does not instruct the connection of the relay RL1 and continues to maintain the off-talk communication line connection state while maintaining Vo.
The IP telephone processing ends (step SP6).

Next, the operation when an incoming call arrives at the telephone 11 will be described with reference to FIG. First, the telephone 11 described above
Similarly, when the telephone 11 is on-hook and in a non-communication state, the telephone 11 is in an off-talk communication line connection state, and bidirectional communication by IP off-talk communication is performed between the communication processing units 16 and 25 ( Step SP11). In the communication processing unit 16, a VoIP telephone service mode is set in advance as a telephone call mode of the telephone 11.

First, an IP packet transmitted from the source of the VoIP telephone is input to the communication processing unit 16 via the communication processing unit 25, and the communication processing unit 16
When an incoming IP phone call is detected (step SP12), the communication processing unit 16 executes a VoIP phone process (step SP13). Next, the communication processing section 16 outputs a call signal for notifying the telephone 11 of an incoming call, and the telephone 11 is off-hook in response to the call signal (step SP14), and the telephone call by the VoIP telephone service becomes I
This is realized in the continuation state of the P off-talk communication (step S
P15).

As described above, in the off-talk communication system according to the first embodiment, the communication processor 16
Since the telephone line is connected (established) by the VoIP telephone with the IP processing function provided while the subscriber line is not used, there is no need to disconnect the off-talk communication line. Therefore, the off-talk communication can be continued even when talking on the telephone 11.

Next, the operation in the case where the telephone service mode of the telephone 11 is set in advance in the communication processing section 16 of the off-talk communication system of FIG. 2 will be described. First, when a call from the telephone set 11 is notified from the voltage fluctuation detection relay control circuit 14, the communication processing unit 16 of the line switching device 13 sets the subscriber line, which is a telephone line for the subscriber telephone service, to a communication enabled state. Therefore, the terminals t3, t6, p3, and p6 of the relay RL1 are each connected to the terminal t.
Instruct the voltage fluctuation detection relay control circuit 14 to connect to 2, t5, p2, and p5, and the subscriber lines B1a and B1b are connected to the subscriber lines A1a and A1b, respectively. Next, the voltage change detection relay control circuit 23 of the IP off-talk station device 21 detects the voltage change between the subscriber lines A1a and A1b, thereby recognizing the call of the telephone 11 and setting the terminals s3 and s6 of the relay RL2 respectively. Connected to terminals s2, s5, subscriber lines A1a, A1b and subscriber lines C1a, C1
b are connected to each other, and the subscriber line of the telephone set 11 is set in a communicable state.

On the other hand, when the disconnection of the telephone line of the telephone set 11 is detected by each of the voltage fluctuation detection relay control circuits 14 and 23, each terminal of each of the relays RL1 and RL2 is switched to the off-talk communication line connection state, and the communication processing is performed. The IP off-talk communication between the units 16 and 25 is restarted.

In the off-talk communication system according to the first embodiment, the input / output device 12 is connected to the information transmitting device by the off-talk communication line based on the IP established between the communication processing unit 16 and the communication processing unit 25. 3
1 can transmit and receive information to and from the IP network 10 via the communication line A4 from the communication processing unit 25.
2 or two-way information transmission / reception with the IP network 102 via the information transmission device 31. As a result, the input / output device 12
With the WWW search / circulation function, e-mail transmission / reception function, and the like provided in the
Information can be obtained from a plurality of servers connected to a network via the Internet. As described above, by using the off-talk communication line based on the IP, it is possible to perform off-talk communication in various connection forms such as bidirectional, one-to-one, one-to-many, and many-to-many.

FIG. 5 is a block diagram showing a configuration of an off-talk communication system according to a second embodiment of the present invention. The off-talk communication system according to the second embodiment shown in FIG. 5 differs from the off-talk communication system according to the first embodiment shown in FIG. 2 in that the modem 41 provided in the line switching device 40 of the second embodiment. Is the voltage change detection relay control circuit 1 in addition to the function of the modulation / demodulation device 15 included in the line switching device 13 of the first embodiment.
4 and a relay RL1. Similarly, in addition to the function of the modem 24 included in the IP off-talk station apparatus 21, the modem 51 provided in the IP off-talk station apparatus 50 also includes a voltage fluctuation detection relay control circuit 23. And relay RL
2 is provided.

The modem 41 shown in FIG.
2 is notified of the transition of the call state of the telephone set 11 and the connection / disconnection between the subscriber lines B1a, B1b and the subscriber lines A1a, A1b in accordance with an instruction from the communication processing unit 42, thereby controlling the connection of the off-talk communication line. Is performed. Also,
The modem 41 transmits and receives an audio signal between the telephone 11 and the communication processing unit 42. The modem 51 is the telephone 11
Of the subscriber line A1 by recognizing the transition of the use state of the subscriber line A1.
The connection control of the off-talk communication line is performed by connecting / disconnecting the subscriber lines C1a and C1b with the subscriber lines C1a and C1b. Other configurations and operations are the same as those of the first embodiment. In the second embodiment, the functions of the voltage fluctuation detection relay control circuits 14 and 23 and the relays RL1 and RL2 are realized by using a line state detection function and a line return function of a modem called a modem. Are realized by the modems 41 and 51, respectively.

FIG. 6 is a block diagram showing a configuration of an off-talk communication system in a digital subscriber line called an ISDN (Integrated Services Digital Network) line according to a third embodiment of the present invention. The off-talk communication system according to the third embodiment shown in FIG. 6 is different from the off-talk communication system according to the first embodiment shown in FIG. 2 in that the line switching device 60 of the third embodiment is a digital subscriber line. Termination function and telephone 1
(DSU) / T having an interface function for connecting 1 to a digital subscriber line
A (terminal adapter) 61 and the DSU / T
A61 notifies the communication processing unit 62 of the transition of the call state of the telephone 11 and, in accordance with an instruction from the communication processing unit 62, the telephone 1
By connecting / disconnecting the channel 1 and the channel of the digital subscriber line, connection control of the off-talk communication line is performed, and transmission / reception of a voice signal between the telephone 11 and the communication processing unit 62 is performed. And the IP off-talk station device 70 includes a line connection device 71 having a digital subscriber line connection function. The line connection device 71 recognizes the transition of the use state of the digital subscriber line of the telephone 11 and recognizes the subscriber line A1a, The transmission channel on A1b and the subscriber line C1a,
The point is that connection to the off-talk communication line is controlled by connecting / disconnecting to / from the transmission channel on C1b.
Other configurations and operations are the same as those of the first embodiment.

In the connection control of the off-talk communication line of the line switching device 60, if there is no free channel in the digital subscriber line at the time of an incoming call to the telephone 11, the off-talk communication line is not disconnected and the busy process is performed. Done.

FIG. 7 is a block diagram showing a configuration of an off-talk communication system in a digital subscriber line according to a fourth embodiment of the present invention. In this figure, FIG.
Is different from the off-talk communication system according to the third embodiment shown in FIG. 1 in that the information providing center 30 includes an IP off-talk center device 80, and the IP off-talk center device 80
Becomes a subscriber of the digital subscriber line, and the line connecting device 81 provided in the IP off-talk center device 80 and the exchange 22 are connected by the subscriber lines D1a and D1b to perform communication by the digital subscriber line. The point is that the switching device 60 and the exchange 22 are connected by the subscriber lines A1a and A1b.

In the off-talk communication system according to the fourth embodiment shown in FIG. 7, the off-talk communication service is provided by using the multi-line connection function of the exchange 22. The digital subscriber line of the IP off-talk center device 80 is always in a connected state, and the channel of the digital subscriber line of the IP off-talk center device 80 and the digital subscriber line of the telephone 11 are used during off-talk communication service to the subscriber home 10. The channels are connected by the multi-line connection function of the exchange 22, and IP off-talk communication is performed between the communication processing unit 25 and the communication processing unit 62. The connection control of the off-talk communication line in the line switching device 60 is the same as that of the third embodiment described above.
When the telephone line is disconnected from the telephone service mode (off-talk communication line disconnected state), the multi-line connection request is made by the communication processing unit 62, and
When the channel of the digital subscriber line of the P off-talk center device 80 and the channel of the digital subscriber line of the telephone 11 are reconnected, the IP off-talk communication is restarted. By the multi-line connection function of the exchange 22, the digital subscriber line of the IP off-talk center device 80 is connected to the digital subscriber lines of a plurality of off-talk communication service subscribers.

Also, a program for realizing the function of each of the communication processing sections 16, 25, 42, and 62 in FIGS. 2, 5, 6, and 7 is recorded on a computer-readable recording medium and recorded on this recording medium. A communication process for performing IP off-talk communication may be performed by causing the computer system to read the executed program and executing the program. Here, the “computer system” includes an OS and hardware such as peripheral devices. Also,
"Computer-readable recording medium" refers to a floppy (registered trademark) disk, a magneto-optical disk, a ROM,
It refers to a portable medium such as a CD-ROM or a storage device such as a hard disk built in a computer system.

Further, a "computer-readable recording medium" refers to a volatile memory (RAM) in a computer system which serves as a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line. ), A program that holds the program for a certain period of time is also included. Further, the above program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the "transmission medium" for transmitting a program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. Further, the program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes a design and the like without departing from the gist of the present invention. It is.

[0045]

As described above, according to the present invention,
A communication processing means for establishing an off-talk communication line based on a communication protocol capable of identifying a communication source and a communication destination in each of the in-home device and the in-station device and performing two-way communication; Communication interface means for performing communication interface processing for transmission via the
Off-talk communication of various connection forms such as many-to-many and many-to-many can be performed.

Further, a telephone line establishing means for establishing a telephone line on the in-home device on the communication protocol, and a telephone mode in which the predetermined telephone mode is a telephone mode using the telephone line established by the telephone line establishing means. Since line connection control means for controlling connection of the off-talk communication line is provided so as not to disconnect the off-talk communication line even at the time of calling, the off-talk communication can be continued even when a telephone call is made.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an off-talk communication system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a detailed configuration of the off-talk communication system shown in FIG.

FIG. 3 is a first sequence diagram for explaining a processing flow of the off-talk communication system shown in FIG. 2;

FIG. 4 is a second sequence diagram for explaining a processing flow of the off-talk communication system shown in FIG. 2;

FIG. 5 is a block diagram illustrating a configuration of an off-talk communication system according to a second embodiment of the present invention.

FIG. 6 is a block diagram illustrating a configuration of an off-talk communication system according to a third embodiment of the present invention.

FIG. 7 is a block diagram illustrating a configuration of an off-talk communication system according to a fourth embodiment of the present invention.

FIG. 8 is a block diagram illustrating a configuration of a conventional off-talk communication system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Subscriber's house 11 Telephone 12 I / O device 13 Line switching device 14, 23 Voltage fluctuation detection relay control circuit 15, 24 Modulation / demodulation device 16, 25 Communication processing unit 20 Station building 21 IP off-talk station internal device 22 Switchboard 30 Information provision center 31 Information Sending device 32 HUB / router 101 Telephone network 102 IP network RL1, RL2 Relay

Claims (9)

[Claims] 1. A telephone set using a subscriber line accommodated in a switching unit as a communication line, and an off-talk communication line via a transmission medium between the switching unit and the telephone set when the subscriber line is not used. An off-talk system including an in-home device and an in-station device to be established, wherein the in-home device establishes the off-talk communication line based on a communication protocol capable of identifying a communication source and a communication destination, and performs a two-way communication. A communication processing unit, and a first communication interface unit for performing a communication interface process for transmitting data bidirectionally communicated by the first communication processing unit via the transmission medium, A second communication processing unit that establishes the off-talk communication line between the home devices based on the communication protocol and performs two-way communication; And a second communication interface means for performing the communication interface processing for transmitting data bidirectionally communicated by the second communication processing means via the transmission medium. Communications system. 2. The in-home device, wherein: a communication line establishing means for establishing a communication line on the communication protocol; and a predetermined communication mode is a communication mode using a communication line established by the communication line establishment means. 2. An off-talk communication system according to claim 1, further comprising: line connection control means for controlling connection of the off-talk communication line so as not to disconnect the off-talk communication line even when the telephone sets a call. . 3. The communication protocol is Internet Pro.
3. The method according to claim 1, wherein the tocol is tocol.
An off-talk communication system according to claim 1. 4. The communication line establishing means according to claim 1, wherein
Voice over Internet Proto which transmits voice by tocol communication
4. The off-talk communication system according to claim 3, wherein a call line is established by col. 5. The off-talk communication line established between the in-home device and the intra-office device is line-connected by a multi-line connection function of the switching means. An off-talk communication system according to any one of the preceding claims. 6. A telephone which uses a subscriber line accommodated in a switching means as a communication line, and an off-talk communication line via a transmission medium between said switching means and said telephone when said subscriber line is not used. An off-talk communication method in an off-talk communication system including an in-home device and an in-station device to be established, wherein the off-talk communication method includes the in-home device based on a communication protocol capable of identifying a communication source and a communication destination. Establish communication line,
A step of performing bidirectional communication, a step of performing a communication interface process for transmitting the data bidirectionally communicated by this step through the transmission medium by the in-home device, and A process in which a device establishes the off-talk communication line between the home devices and performs two-way communication; and a process in which the intra-station device transmits data to be bi-directionally communicated by the process via the transmission medium. Performing an interface process; and an off-talk communication method. 7. The off-talk communication method, wherein: the home device establishes a communication line on the communication protocol; and a communication mode using a communication line in which a predetermined communication mode is established on the communication protocol. 7. The method according to claim 6, further comprising: controlling the connection of the off-talk communication line so that the in-home device does not disconnect the off-talk communication line even when calling the telephone. Off-talk communication method. 8. A telephone set using a subscriber line accommodated in a switching unit as a communication line, and an off-talk communication line via a transmission medium between the switching unit and the telephone set when the subscriber line is not used. A computer-readable recording medium recording an off-talk communication program for performing an off-talk communication in an off-talk communication system including an in-home device and an in-station device to be established, wherein the off-talk communication program can identify a communication source and a communication destination. A process of establishing the off-talk communication line based on a simple communication protocol and performing bidirectional communication, and a process of performing a communication interface for transmitting data bidirectionally communicated by this process via the transmission medium; Off-talk communication program characterized by causing a computer to execute The recording medium. 9. The off-talk communication program includes: a process for establishing a communication line on the communication protocol; and a case where a predetermined communication mode is a communication mode using a communication line established on the communication protocol. The off-talk communication program according to claim 8, further comprising: causing a computer to execute a process of controlling connection of the off-talk communication line so that the off-talk communication line is not disconnected even when the telephone is called. Recording medium.