JPH0818697A - Communication system - Google Patents

Abstract

PURPOSE:To apply no charging to erroneous communication and to prevent unconditional connection for prankster calls or erroneous number calls made by unspecified people according to the requests from subscribers on a communication system which makes communication through a public line network. CONSTITUTION:An exchange 2 is provided with a connection control part 10 connecting a subscriber terminal equipment 1 at the originating side and a subscriber terminal equipment at the reception side, line connection signal detection part 11 detecting the connection and disconnection of the subscriber terminal equipment 1 at the originating side and the subscriber terminal equipment at the reception side, charging discrimination part 12 detecting the line connection time and judging whether or not to charge to the terminal equipment 1, and charging start holding part 13 from the line connection to the start of charging. When the connection time is within the holding time, it is not changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system for communicating via a public line network. The number of subscribers who use public line networks is huge. As a result, the number of false calls has increased, and on the other hand, the harmful effects of a mischievous call using a public network have occurred. The present invention eliminates such an adverse effect in a communication system using a public line network.

[0002]

2. Description of the Related Art FIG. 16 shows a conventional communication system.
In FIG. 16, a subscriber terminal device (sending side) 200 is a telephone, a fax machine or the like.

Reference numeral 201 is an exchange. Reference numeral 202 denotes an exchange of the calling subscriber terminal device 200. 203 is a charging means in the exchange 201, which is a subscriber terminal device 20.
It calculates a call charge of zero.

Reference numeral 204 is a public line network. Reference numeral 210 denotes a connection control unit of the exchange 202, which controls connection between the subscriber terminal device 200 on the calling side and the subscriber terminal device 200 'on the receiving side.

Reference numeral 200 'denotes a subscriber terminal device (reception side), which is a telephone, a fax machine or the like. 201 'is an exchange.

[0006]

Conventionally, when the subscriber terminal device 200 and the subscriber terminal device 200 ′ communicate with each other via the public line network 204, the dial number is wrongly transmitted, and the purpose is to be achieved. The charging means 203 charged the telephone charge even when the user called a different place or dialed the number of the fax machine with the intention of making a call.

Further, conventionally, the subscriber terminal device 2 on the originating side is
In response to a call from 00 to the subscriber terminal device 200 'on the receiving side, the exchanges 201 and 201' are unconditionally connected, and the exchange 201 is unconditionally called even if a telephone call is made. Was connected to the receiving side. Or,
When a television broadcasting station displays a telephone number on the television screen and accepts a telephone call from an unspecified number of viewers, a subscriber who has a number similar to the broadcast telephone number is flooded with wrong telephone numbers. Subscribers with such numbers have been in trouble.

The present invention does not charge for a wrong call or unconditionally connects to a prank call or a wrong call flooded by an unspecified number of people at the request of a subscriber. It is an object of the present invention to provide a communication system that prevents users who join the public line network from being disturbed.

[0009]

SUMMARY OF THE INVENTION According to the present invention, in a communication system in which a subscriber terminal device is connected to a public line network through a switching device, the switching device determines the connection time between the calling and receiving subscriber terminal devices. A line connection time detection unit that detects the line connection, a charge determination unit that detects the line connection time and determines whether or not to charge the subscriber terminal device, and a hold time from when the line is connected until the charge starts It is equipped with a charging start hold time holding unit that holds the charge, and does not charge when the connection time is within the preset hold time.

Further, the subscriber terminal device is provided with a device signal transmitting section for outputting a device signal indicating the type of the device (telephone, fax, etc.) to the exchange, and each of the originating and receiving side subscriber terminal devices. A device signal identification unit for receiving the device signal of 1., and a coincidence judging unit for judging whether the device signal on the transmitting side and the device signal on the receiving side coincide or not
If the device signals on the sending side and the receiving side do not match, charging is not applied.

Further, the subscriber terminal device is provided with a suppression request signal generating section for generating a connection suppression request signal for requesting not to establish a connection for a certain period of time after the next while connecting to another subscriber terminal device, and the switching equipment. Is a connection between the suppression number holding unit that holds the connection suppression request signal of the receiving side subscriber and the connection side subscriber terminal device that is currently connected by receiving the connection suppression request signal of the receiving side subscriber. It has a connection suppression control unit that cancels the connection, and does not connect if the calling subscriber number and the receiving subscriber number match the connection suppression number held in the suppression number holding unit.

Further, the exchange sets a confirmation number setting section for setting a connection confirmation number for confirming that a connection is made to the subscriber who sends the reception number of the subscriber in response to a request from the subscriber. And a confirmation number holding unit for holding the confirmation number and a confirmation notification unit for transmitting a confirmation notification for confirming whether or not there is an error in connecting to the calling side terminal device transmitting the number of the confirmation number holding unit. And a confirmation notification is output to the calling side terminal device that sends the subscriber's number when requested by the subscriber, and is received only when the calling side responds to the confirmation notification by the calling side. I tried to connect with the side subscribers.

FIG. 1 shows a basic configuration (1) of the present invention, which is a basic configuration for avoiding charging when a call is made to a party different from the intended party due to a wrong dial number. The configuration is shown.

In FIG. 1, reference numeral 1 is a calling side subscriber terminal device, such as a telephone set or a fax machine. 2 is an exchange.

Reference numeral 3 is a charging means. 4 is a public line network. In the exchange 2, 10 is a connection control unit, which connects the subscriber terminal device 1 on the calling side and the subscriber terminal device (not shown) on the receiving side via the public line network 4.

Reference numeral 11 is a line connection signal detecting section for detecting connection and disconnection between the calling subscriber terminal device 1 and the receiving terminal device. Reference numeral 12 is a billing determination unit for calculating a billing time and determining whether or not to bill.

Reference numeral 13 is a charging start holding time holding unit,
It holds a grace period from the reception side answering an incoming call to the start of charging. The basic configuration of the present invention shown in FIG.
The operation of (1) will be described.

When the originating subscriber terminal device 1 dials the telephone number of the other party, the connection control section 10 establishes a connection with the receiving side through the public line network 4 and the other party's exchange (not shown). . The line connection signal detection unit 11 determines the incoming call response and disconnection of the other party. The charging determination unit 12 calculates the connection time based on the start time and the disconnection time of the incoming call response and compares it with the charging start hold time. Then, when the connection time exceeds the charging start hold time, the charging means 3 is instructed to start charging. The charging means 3 calculates the call charge based on the information such as the call time and the place of the call destination. Further, when the connection time is shorter than the charging start hold time, the charging determination unit 12 does not instruct the charging means 3 to start charging.

By doing so, when the time from the on-hook of the other party to itself or the off-hook of the other party is short, such as when the calling subscriber terminal device 1 makes a mistaken dial, the charging means 3 charges. Don't do

FIG. 2 shows the basic configuration (2) of the present invention. When a fax number is dialed for the purpose of making a call,
On the contrary, the basic configuration [2] is shown so as not to charge for the connection that cannot achieve the purpose such as dialing the telephone number for faxing.

In the configuration shown in FIG. 2, reference numeral 1 is a calling side subscriber terminal device. 2 is an exchange.

Reference numeral 3 is a charging means. 4 is a public line network. Reference numeral 5 denotes a device signal transmitting section of the calling side subscriber terminal device 1, which sends a signal indicating the type of the calling side subscriber terminal device 1 (telephone, fax machine, etc.).

In the exchange 2, 10 is a connection control unit. Reference numeral 15 denotes a device signal identifying section which identifies the device signal of the subscriber terminal device 1 on the calling side by the connection of the call.

Reference numeral 16 is a coincidence determination unit for determining whether or not the device signals of the subscriber terminal devices on the transmitting side and the receiving side coincide. 1'is a subscriber terminal device on the receiving side.

2'is an exchange. Reference numeral 5'denotes a device signal transmitting section for transmitting the device signal of the subscriber side terminal device 1 '.

The operation of the configuration of FIG. 2 will be described. It is assumed that a call is made between subscriber terminal devices. The dial number of the other party is transmitted from the originating subscriber terminal device 1 and is connected to the subscriber terminal device 1'through the exchange 2, the public line network 4, and the exchange 2 '.

The device signal transmitting section 5 on the transmitting side transmits a device signal indicating that the device is a telephone, for example, to the exchange 2. Further, the device signal transmitting section 5'on the receiving side transmits a device signal indicating that it is a telephone. Then, the device signal is received by the exchange 2.

In the exchange 2, the device signal identifying section 15 identifies the device signals of both the originating side and the receiving side, and the coincidence determining section 16 determines that the correct call connection is made if the two device signals coincide. It is determined and the charging means 3 is instructed to charge.

When the calling subscriber terminal device 1 makes a mistake when dialing a fax number where a call should be made, the calling side sends a device signal to the exchange 2 indicating that it is a telephone, and the receiving side Since the device signal indicating that the device is a fucking device is transmitted to the exchange 2, the match determination unit 16 determines that the device signals do not match, and does not give an instruction to start charging, assuming that normal call connection is not established.

The same applies when performing fax communication between subscriber terminal devices. FIG. 3 shows the basic configuration (3) of the present invention. FIG. 3 shows a configuration for preventing a connection such as a mischievous telephone from being frequently dialed from a person who does not want to be connected.

In FIG. 3, reference numeral 1 is a subscriber terminal device on the calling side. 1'is a subscriber terminal device on the receiving side.

Reference numerals 2 and 2'denominate exchanges. 4 is a public line network. Reference numeral 6 denotes a suppression request signal generation unit, which, when a call is made from a partner who does not want to make a connection such as a prank call, makes a connection from the receiving side to the exchange 2 and the subsequent connection with the number of the partner who is currently connected It generates a suppression request signal for requesting not to take.

In the exchange 2, 10 is a connection control unit. Reference numeral 20 denotes a connection inhibition control unit, which is an inhibition number holding unit 2
5 (described later), the combination of the calling side number and the receiving side number associated therewith is not connected.

Reference numeral 21 denotes a suppression setting unit, which stores a suppression number holding unit 25 in response to a connection suppression request from the subscriber terminal device 1 '.
A combination of the number of the calling side (the number of the side requested to suppress the connection) and the receiving side (the number of the side requesting the connection suppression) is set.

Reference numeral 22 denotes an inhibition permission / inhibition determination unit which compares the number on the calling side with the number on the receiving side to determine whether or not it is necessary to inhibit the connection. Reference numeral 25 denotes an inhibition number holding unit, which is the number of the subscriber terminal device 1 on the receiving side that has requested the connection inhibition and the subscriber terminal device 1'of the originating side that has been requested to inhibit the connection.
It holds the combination with the number.

Reference numeral 26 is the calling party number, which is the calling party number requested to inhibit the connection. Reference numeral 27 is the receiving side number, which is the number of the receiving side that has requested the connection suppression. The operation of the configuration of FIG. 3 will be described.

When the subscriber terminal device 1'receives a prank call, the inhibition request signal generator 6 issues a connection inhibition request signal to the exchange 2 requesting that it not establish a subsequent connection with the other party. To do.

When the exchange 2 receives the connection inhibition request signal from the subscriber terminal device 1 ', the inhibition setting unit 21 causes the number of the subscriber terminal device 1 (calling side number 26 ) And the number (reception side number 27) of the subscriber terminal device 1 ′ that has made the connection suppression request are associated and stored in the suppression number storage unit 25.

After that, when the subscriber terminal device 1 (sending side) dials the subscriber terminal device 1 '(reception side), the inhibition propriety determining unit 22 in the exchange 2 determines the inhibition number holding unit 25. Referring to, the number of the calling side subscriber terminal device 1'and the calling side number 26 held in the suppression number holding unit 25 are judged to match, and the calling side subscriber terminal device 1 and the receiving side join. The connection of the person terminal device 1'is stopped.

FIG. 4 shows the basic configuration (4) of the present invention. FIG.
Is the case when a TV station displays a telephone number on the TV screen and accepts calls from an unspecified number of viewers.
When a call is made to a subscriber with a number similar to the number broadcast or advertised, at the request of the called party,
Issuing a notification to the calling side to confirm whether or not it is possible to connect to the dialed number, and establish a connection between the calling side and the receiving side only when the notification that the connection can be made is received from the calling side. It is the one.

In FIG. 4, 1 is a subscriber terminal device on the originating side. 1'is a subscriber terminal device on the receiving side.

Reference numerals 2 and 2'denominate exchanges. 4 is a public line network. In the subscriber terminal device 1 (originating side), 8 is a confirmation notification receiving / responding unit which receives a confirmation notification from the exchange 2 and makes a confirmation response when a connection is established.

In the subscriber terminal device 1 '(reception side),
Reference numeral 8'denotes a confirmation request transmission unit which issues a confirmation notification to the transmission side and requests the exchange 2 to establish a connection between the transmission side and itself (reception side) after obtaining a confirmation response.

Reference numeral 10 is a connection control unit. Reference numeral 30 denotes a connection confirmation control unit, which inquires of the originating side whether or not the connection is acceptable, and establishes a connection with the receiving side when a confirmation notice of the connection is received.

Reference numeral 31 denotes a confirmation notifying unit, which transmits a confirmation notice as to whether or not connection can be established to the subscriber terminal device on the originating side, and after receiving a confirmation response indicating that connection is established, the connection control unit 10 To instruct the connection.

Reference numeral 32 is a confirmation number setting section for setting a confirmation number (confirmation number of the subscriber terminal device on the receiving side) for connection confirmation at the request of the subscriber terminal device 1'on the receiving side.

A confirmation number holding unit 33 holds a confirmation number for confirming connection. The operation of the configuration of FIG. 4 will be described.

When it is desired that the subscriber terminal device 1'will not receive a telephone connection from a large number of callers from such a number of callers, the subscriber's terminal device 1'can be called to the exchange 2 from the caller side. After confirming the connection, a confirmation request signal for requesting the connection with the receiving side is generated.

The exchange 2 is a subscriber terminal device 1'on the receiving side.
When the confirmation request signal is received from, the confirmation number holding unit 33 holds the number. After that, when the number is dialed, the exchange 2 confirms the confirmation number holding unit 33.
If the number (incoming number) is registered, the confirmation notification unit 31 issues a confirmation notification to the calling side to inquire whether the dialed number is wrongly called.

The subscriber terminal device 1 on the calling side which has received the confirmation notice makes a confirmation response when there is no mistake in the dialed number and a connection with the partner of that number is required. When the exchange 2 receives the confirmation response, the connection confirmation control unit 30 instructs the connection control unit 10 to establish a connection between the transmission side and the reception side (reception side). The connection control unit 10 takes the connection. Also, if no acknowledgment is returned,
The connection confirmation control unit 30 instructs the connection control unit 10 to cancel the connection between the transmission side and the reception side.

[0051]

According to the basic configuration (1) of the present invention, when the telephone number of the intended party is mistakenly dialed and a different party from the intended party is called, or when the called party is absent, the answering machine is available. In the case where the purpose of the telephone cannot be achieved, such as when there is, it is possible not to be charged. Further, according to the basic configuration (2) of the present invention, it is possible to prevent the user from being charged even if the user calls the fax number by mistake when he should call. Therefore, the basic configurations (1) and (2) of the present invention
According to the above, it is not possible to establish a conscientious communication system for subscribers.

Further, according to the basic configuration (3) of the present invention,
When a telephone call that the receiving side does not want is frequently made, such as a prank call, the incoming call can be rejected at the request of the receiving side. Further, according to the basic configuration (4) of the present invention, even when a large number of unspecified callers make wrong dial numbers and arrive at a specific receiving side terminal device, the receiving side requests. This makes it possible to receive only correct outgoing calls that really require a connection. Therefore, according to the basic configurations (3) and (4) of the present invention, it is possible to eliminate the harmful effect in the communication system in which a large number of unspecified subscribers are connected to the public line network.

[0053]

EXAMPLE FIG. 5 shows an example of the basic configuration (1) of the present invention. In FIG. 5, reference numeral 51 is a telephone (caller side subscriber terminal device).

Reference numeral 52 is an exchange. 52 'is a public line network. Reference numeral 53 is a host computer, which performs charging processing.

54 is a billing means, which is a program for billing calculation. Reference numeral 56 denotes a maintenance console, which sets a charging reservation time (the time from the connection between the subscriber terminal device (not shown) on the transmitting side and the telephone 51 until the start of charging) to the exchange 52. It is for doing.

In the exchange 52, a line switching unit 60 is composed of a switch for connecting a line (the connection control unit of FIG. 1 is composed of a central control unit 66 and the line switching unit 60. is there).

Reference numeral 61 is a line connection detector. Reference numeral 62 denotes a response / disconnection signal detection unit that detects the response and disconnection performed by the circuit switching unit 60.

A line connection time counting unit 63 resets and counts the elapsed time of line connection. Reference numeral 64 denotes a billing determination unit, which determines the necessity of billing and calculation of the call time based on the response / disconnection signal.

Reference numeral 65 denotes a response / disconnection signal notifying unit which notifies the central control unit 66 of the response / disconnection signal. 66 is a central control unit, which calculates the call duration,
When billing is required, the call time is notified to the host computer 53 to instruct to perform billing processing.

Reference numeral 67 denotes a memory, which holds a charge reservation time and the like. A charge start timing setting unit 68 sets a charge reservation time.

Reference numeral 70 denotes a line IF, which is a public line network 5
2'is an interface for connecting the exchange 52. 7
Reference numeral 1 denotes a subscriber IF, which is an interface between the telephone 51 and the exchange 52.

Reference numeral 72 is an IO, which is the maintenance console 56.
And the exchange 52. Reference numeral 73 is an IO, which is an input / output unit between the host computer 53 and the exchange 52.

FIG. 6 is a flowchart of the first embodiment.
The operation of the first embodiment shown in FIG. 5 will be described with reference to FIG. The charging reservation time t ₀ is input through the S1 maintenance console 56. The charging start timing setting unit 68 sets the charging reservation time t ₀ .

The S2 device (switch 52) is in a steady state with no line connection. The telephone number of the other party is dialed from the S3 telephone 51 and a connection request is made.

The S4 response / disconnection signal detector 62 detects a response signal (off-hook) from the subscriber terminal device on the receiving side. S5 The line is connected.

S6 The line connection time counting section 63 starts counting the line connection time. S7 The central controller 66 determines whether the line is connected or not at t = t ₀ , where t is the elapsed time after the line is connected. S if the line is connected
8. If the line is disconnected, proceed to S11.

S8 The response / disconnection signal notifying section 65 notifies the central control unit 66 that the line is being connected. The S9 response / disconnection signal notification unit 65 notifies the central control unit 66 of the line disconnection detected by the response / disconnection signal detection unit 62. Since the central control unit 66 is still connected even after the charging hold time has elapsed, information necessary for charging (call time, call distance, etc.)
To work.

S10 The central control unit 66 transfers the billing information (call time, call distance, etc.) to the host computer 53. S11 Since the line is connected before the charging start hold time has passed, the line connection time counting unit 63 resets the line connection time.

The host computer 53 calculates the call charge by the charging means 54 based on the charging information received from the central controller 66. When the line is disconnected at t = t ₀ , the central controller 66 resets the line connection time of the line connection time counting unit 63. In this case, the host computer 53 is not instructed to charge.

FIG. 7 shows a second embodiment of the present invention, which is an embodiment of the basic structure (1). In FIG. 7, 51 is a telephone.

Reference numeral 52 is an exchange. 52 'is a public line network. 53 is a host computer.

Reference numeral 54 is a charging means. Reference numeral 56 is a maintenance console. In the exchange 52, 60 is a circuit switching unit.

Reference numeral 60 'is a line control device for notifying the central control device 66 of control signals for line connection, disconnection, etc. (corresponding to the line connection signal detection section in FIG. 1). 6
Reference numeral 4 is a charge determination unit.

Reference numeral 66 denotes a central control unit which controls the connection of the circuit switching unit 60, calculates the call duration, and determines whether or not charging is required. 67 is a memory.

Reference numeral 68 denotes a charging start timing setting section for setting a charging start holding time. A line IF 70 is an interface between the exchange 52 and the public line network 52 '.

Reference numeral 71 is a subscriber IF. An IO device 72 serves as an interface between the charging start timing setting unit 68 and the maintenance console 56.

Reference numeral 73 denotes an IO device, which is a central control unit 6
6 and the host computer. FIG. 8 is a flowchart of the operation of the second embodiment shown in FIG.

The charging start hold time t _{0 is} set by the charging start timing setting unit 68 using the S1 maintenance console 56.
Set. The S2 and S3 devices (switch 52) are in a steady state in which no line is connected, and the line control device 60 'makes a connection request to the other side.

S4, S5 The connection response (off-hook signal) is returned from the other party to establish the connection state. The line controller 60 'detects a connection response. The S6 line controller 60 'notifies the central controller 66 of the line response, and counting of the line connection time t is started.

S7 Next, when the line is disconnected, the line controller 60 'notifies the central controller 66 of the line disconnection. S8 The central control unit 66 compares the connection time with the charging start hold time and determines whether to charge or not. If the connection time is longer than the charging start hold time, the charging time (connection time) is notified to the host computer and charging is instructed.
If the connection time is shorter than the charging start hold time, the charging instruction is not issued.

In the case of S9 billing, the central control unit 66 notifies the host computer 53 of billing information (call time, call distance, etc.). S10 The central control unit 66 controls the billing information (call time, etc.)
Reset.

FIG. 9 shows Embodiment 3 of the present invention, which is an embodiment of the basic configuration (2). In FIG. 9, reference numeral 81 denotes a subscriber terminal device, which is a telephone, a fax machine, or the like.

Reference numeral 84 'is a device signal transmitting section for generating a device signal representing a telephone, a fax machine or the like. Reference numeral 82 "is a subscriber terminal device, such as a telephone set, a fax machine or the like.

Reference numeral 83 is a device signal transmitting section. Reference numeral 84 is an exchange of the subscriber terminal equipment 82 ″. Reference numeral 85 is an exchange of the subscriber terminal equipment 81.

Reference numeral 86 is a public line network. 87 is a host computer. 88 is a charging means.

In the exchange 85, 90 is a circuit switching unit. Reference numeral 91 denotes a device signal detector of the partner terminal device, which is a device signal transmitter 8 of the partner terminal device 82 "of the partner.
3 detects the device signal transmitted. It corresponds to the device signal identification unit in the configuration of FIG.

Reference numeral 92 denotes a device signal detector of the terminal device on the own station side, which detects the device signal transmitted by the device signal transmitter 84 'of the subscriber terminal device 81 on the own station side. Figure 2
It corresponds to the device signal identification unit in the configuration of.

Reference numeral 93 is a coincidence determination unit. Reference numeral 94 is a central controller. Reference numeral 95 is a line IF.

Reference numeral 96 is a subscriber IF. An input / output device (IO) 111 is an interface that connects the central control device 94 and a host computer.

FIG. 10 is a flow chart showing the operation of the third embodiment of the present invention. The operation of the third embodiment shown in FIG. 9 will be described with reference to FIG. It is assumed that the subscriber terminal device 81 is the originating side and the subscriber terminal device 82 ″ is the receiving side (terminating side).

S1 It is in a steady state (line disconnection state). S2 A connection request is made to the subscriber terminal device 82 ″ on the called side. S3 Since a device identification signal is sent from the subscriber terminal device 81 on the calling side, the device signal detection section 92 is sent from the calling side. Identify device signals.

S4 The terminal device on the receiving side (subscriber terminal device 82 "on the receiving side) returns a response (off-hook). S5 The device signal detector 91 detects the device signal on the receiving side terminal device (subscriber terminal device 82"). Identify.

S6 The central control unit 94 judges whether or not the subscriber terminal device 82 "on the receiving side and the subscriber terminal device 81 of the own station are the same or not. If they match, the process proceeds to S7 and they match. If not, proceed to S8.

Since the S7 device signals match, the central control unit 94 brings the line into the connected state and instructs the host computer 87 to perform the charging process. The host computer performs the charging process by the charging means 88.

S8 Since the device numbers do not match as in the case where the fax machine and the telephone are connected, the central control unit 94 cancels the line connection. FIG. 11 shows the third embodiment.
The processing sequence of is shown.

(1), (2), (3) The terminal device (subscriber terminal device 81) on the originating side receives the off-hook signal (1), the device signal.
(2) The dial transmission signal (3) is sent to the exchange 85. (4) The exchange 85 transmits a device signal to the destination exchange 84 (it is not always necessary to transmit the device signal of the transmission side to the exchange of the reception side, but the figure shows the case where this is done. ).

(5) The exchange 85 sends a dial signal to the exchange 84 on the receiving side. (6) The exchange 84 on the receiving side transmits a dial signal (call signal) to the subscriber terminal device 82 "on the receiving side.

(7) The receiving-side subscriber terminal device 82 ″ sends an off-hook response to the exchange 84. (8) The receiving-side subscriber terminal device 82 ″ sends a device signal to the exchange 84.

(9) The exchange 84 sends an off-hook signal to the exchange 85. (10) The exchange 84 sends a device signal on the called side (in the figure, the device number on the calling side received by the called exchange 84 is also transferred (not necessary)).
Send to.

(11) The off-hook signal on the called side is transmitted to the subscriber terminal device 81 on the calling side. FIG. 12 shows Embodiment 4 of the present invention. FIG. 12 shows an example configuration of the basic configuration (3) of the present invention.

In FIG. 12, reference numeral 81 is a subscriber terminal device. 81 'is a suppression request signal transmitting section, which is an exchange 8
5 is requested to control connection.

Reference numeral 81 "is a message receiving section for receiving a message sent from the exchange 85. Reference numeral 85 is an exchange.

Reference numeral 86 is a public line network. 110 is a maintenance console. An input / output device (IO) 111 connects the exchange 85 and the maintenance console 110.

In the exchange 85, 90 is a circuit switching unit. A central control unit 94 corresponds to the connection inhibition control unit of the basic configuration (3).

Reference numeral 95 is a line IF. 96 is a subscriber IF
Is. Reference numeral 97 denotes a memory, which holds the inhibition number and corresponds to the inhibition number holding unit of the basic configuration (3).

Reference numeral 100 denotes a suppression request signal detecting section which detects the suppression request signal transmitted from the subscriber terminal device 81. A message sending unit 101 sends a message indicating inhibition to the subscriber terminal device 81.

Reference numeral 102 denotes a connection suppression period setting section for setting a connection suppression period. Next, the operation of the configuration of FIG. 12 will be described with reference to the flowchart of FIG.

S1 The connection suppression period setting unit 102 uses the maintenance console 110 for the suppression period T in which the connection is suppressed when the connection suppression request is made from the subscriber terminal device 81.
Set by.

The S2 switch 85 is in a line disconnection state. A line connection request with the S3 subscriber terminal device 81 as the receiving side is sent from the public line network 86 side to the exchange 85.

S4, S5 The central control unit 94 compares the combination of the calling number, the incoming number and the suppression date with the combination of the suppression numbers stored in the memory 97. If it is a combination of the outgoing number and the incoming number being suppressed, the process proceeds to S6, and if it is different from the stored combination, the process proceeds to S9.

The S6 message sending unit 101 outputs the message notification of the suppressed message to the calling side. S7 The central control unit 94 cancels the line connection.

S8 The connection restraint date of the memory 97 is updated, and the process returns to S2. S9 Since there is no combination of numbers for which connection is suppressed, connect the line. S10 It is determined whether the connection suppression signal is detected. When the suppression request signal transmitting unit 81 ′ of the subscriber terminal device 81 transmits the suppression request signal, and the suppression request signal detection unit 100 detects the connection suppression signal (connection suppression request signal), S
Proceed to 11. If there is no request for the connection suppression signal, the process proceeds to S15.

S11 Since this is a connection suppression request, the central control unit 94 calculates the suppression deadline from the connection date and time and the connection suppression period T (predetermined). S12 The central control unit 94 stores the calling number, the called number and the suppression date in the memory 97.

S13 The central control unit 94 outputs a message for suppressing connection to the calling side and the called side. S14 The central control unit 94 disconnects the line because the connection is suppressed.

S15 Since the connection is not suppressed, the central control unit 94 sets the call state. S16 The central control unit 94 disconnects the line when the call ends. FIG. 14 shows Embodiment 5 of the present invention, which is an embodiment of the basic configuration (4) of the present invention. Subscriber terminal device 81
This is a configuration for confirming to the caller whether there is any mistake in the dialed telephone number upon request from the sender.

In FIG. 14, reference numeral 81 is a subscriber terminal device, which is on the receiving side. Reference numeral 81 'is a suppression request signal transmission unit, which requests the exchange 85 to suppress connection.

Reference numeral 82 is a subscriber terminal device on the calling side. 8
A message receiving unit 2'receives a connection confirmation message from the exchange 85.

Reference numeral 84 is an exchange on the originating side. Reference numeral 85 is an exchange on the receiving side. 86 is a public line network.

Reference numeral 110 is a maintenance console. Exchange 8
In FIG. 5, 90 is a circuit switching unit.

Reference numeral 90 'is a line control device (the line switching unit 90 and the line control device 90' constitute the connection control device of FIG. 4). Reference numeral 94 is a central controller.

Reference numeral 95 is a line IF. 96 is a subscriber IF
Is. Reference numeral 97 is a memory for holding a connection inhibition number.

Reference numeral 101 denotes a message sending unit which sends a message indicating that connection is being suppressed to the subscriber terminal device 81 on the sending side.
To be sent to. Reference numeral 102 is a connection suppression period setting unit.

An input / output device (IO) 111 connects the exchange 85 and the maintenance console 110. The operation of the fifth embodiment of the present invention will be described with reference to FIG.

On the S1 switch 85 side, the connection suppression period setting unit 102 sets the connection suppression period T using the maintenance console 110 when the subscriber terminal device 81 requests the connection suppression.

The S2 switch 85 is in a steady state (line disconnection state). The S3 subscriber terminal device 81 sends a suppression request signal to the exchange 85 by a special number. Suppression request signal detector 115 '
However, if the suppression request signal transmitted from the subscriber terminal device 81 is detected, the process proceeds to S4. If there is no suppression request signal, the process proceeds to S2.

S4 Using the maintenance console 110, the connection control period setting unit 102 controls the connection date and time and the connection control period T.
The suppression date is calculated based on (the connection suppression period T is predetermined).

S5 The central control unit 94 stores the subscriber number and the restraint date in the memory 97. S6, S7 The central controller 94 controls the connection. If there is a connection request, the process proceeds to S8, and if there is no connection request, the process proceeds to S10.

S8 In response to the connection request from the calling side, the central control unit 94 notifies the calling side of the message indicating that the connection is being suppressed. S9 The subscriber terminal device 82 on the calling side confirms the dialed number by receiving the message. When it is confirmed that there is no mistake, it sends a connection request signal to the receiving side. When the exchange 85 detects the connection request signal, the exchange 85 proceeds to S12, and when not receiving the connection request signal, S1.
Go to 3.

S12 The exchange 84, which has received the connection request signal from the calling side, performs line connection using a special number. Since the exchange 84 does not detect the connection request signal from the calling side, it disconnects the line and returns to S2. After the line is connected in S12, the line is disconnected when an on-hook signal is detected.

If there is no connection request, the central control unit 94 determines whether the connection suppression deadline has been exceeded. If the suppression date has exceeded, it progresses to S11, and if not, it progresses to S6.

S11 The subscriber number and the connection restraint date of the memory are cleared, and the process returns to S2.

[0132]

According to the basic configuration (1) of the present invention, it seems that the user is unnecessarily connected to the other party such as when the other party of the call is called by mistake and the other party is an answering machine. In some cases, you can choose not to be charged. Also,
According to the basic configuration (2) of the present invention, even if a call is made to a terminal device that cannot communicate by mistake, it is possible not to be charged. Therefore, the basic configuration of the present invention (1)
According to (2), it is possible to provide a conscientious communication system to subscribers.

According to the basic configuration (3) of the present invention, when the receiving side originates from an undesired party, it is possible to reject the incoming call at the request of the receiving side. Therefore, subscribers will not be bothered by prank calls. Further, according to the basic configuration (4) of the present invention, even when an unspecified caller mistakenly makes a dial call to a specific receiving side terminal device, a connection is really required at the request of the receiving side. Only the correct outgoing calls can be received. Therefore, the basic configurations (3) and (4) of the present invention
According to this, it is possible to eliminate the adverse effect in the communication system in which an unspecified large number of subscribers are connected to the public line network.

[Brief description of drawings]

FIG. 1 is a diagram showing a basic configuration (1) of the present invention.

FIG. 2 is a diagram showing a basic configuration (2) of the present invention.

FIG. 3 is a diagram showing a basic configuration (3) of the present invention.

FIG. 4 is a diagram showing a basic configuration (4) of the present invention.

FIG. 5 is a diagram showing a first embodiment of the present invention.

FIG. 6 is a diagram showing a flowchart of the first embodiment of the present invention.

FIG. 7 is a diagram showing a second embodiment of the present invention.

FIG. 8 is a diagram showing a flowchart of a second embodiment of the present invention.

FIG. 9 is a diagram showing Embodiment 3 of the present invention.

FIG. 10 is a diagram showing a flowchart of Embodiment 3 of the present invention.

FIG. 11 is a diagram showing a processing sequence of Example 3 of the present invention.

FIG. 12 is a diagram showing Embodiment 4 of the present invention.

FIG. 13 is a diagram showing a flowchart of Embodiment 4 of the present invention.

FIG. 14 is a diagram showing Embodiment 5 of the present invention.

FIG. 15 is a diagram showing a flowchart of Example 5 of the present invention.

FIG. 16 is a diagram showing a conventional communication system.

[Explanation of symbols]

 1: Subscriber terminal device 2: Switching device 3: Billing means 4 Public line network 10: Connection control unit 11; Line connection signal detection unit 12: Billing determination unit 13: Billing start hold time holding unit

Claims (4)

[Claims] 1. A communication system in which a subscriber terminal device is connected to a public line network via an exchange, the communication system being a subscriber terminal device (1) connected to a public line network (4).
The exchange (2) is equipped with an exchange (2) for controlling mutual connection and a charging means (3) for calculating the line usage charge of the subscriber terminal device.
Is a connection control unit (10) for controlling the connection between the calling subscriber terminal device (1) and the receiving subscriber terminal device, the calling subscriber terminal device (1) and the receiving subscriber terminal. A line connection signal detection unit (11) that detects connection and disconnection of the device, and a billing determination unit (12) that detects the line connection time and determines whether or not to bill the subscriber terminal device (1). A communication characterized by comprising a charging start holding time holding unit (13) for holding a holding time from when the line is connected until the start of charging, and charging is not performed when the connection time is within the holding time. system. 2. In a communication system in which subscriber terminal devices are connected to a public line network via an exchange, the communication system comprises an exchange (2) for controlling connection between subscriber terminal devices connected to the public line. The subscriber terminal device is provided with a charging means (3) for calculating the line usage charge of the subscriber terminal device (1).
(1) is equipped with a device signal transmission unit (5) that outputs a device signal indicating the type of device to the exchange (2), and the exchange (2) is the originating subscriber terminal device (1) and the receiving subscriber. A connection control unit (10) for controlling connection with the terminal device (1 ') and receiving device identification signals of the calling subscriber terminal device (1) and the receiving subscriber terminal device (1'), respectively. Device signal identifying unit (15), the device signal of the originating subscriber terminal device (1) and the receiving subscriber terminal device
(1 ') The device signal of the subscriber terminal device (1) on the sending side and the subscriber terminal device (1') on the receiving side are provided with a match judging section (16) for judging whether the device signals match or do not match. A communication system characterized in that the subscriber terminal device (1) is not charged when the device signals do not match. 3. A communication system in which a subscriber terminal device is connected to a public line network via an exchange, the communication system being a subscriber terminal device (1) connected to a public line network (4).
, (1 ') is provided with an exchange (2) for controlling connection between the subscriber terminals (1') on the receiving side and the terminal equipment on the calling side which is being connected.
A switching request (2) is provided with a suppression request signal generation unit (6) that generates a connection suppression request signal for requesting a connection cancellation with (1), and the exchange (2) is a calling side subscriber terminal device (1) and a receiving side subscriber. Terminal device (1 ')
The connection control unit (10) that controls the connection between the subscriber and the subscriber terminal device on the sending side and the subscriber on the receiving side that are connected by receiving the connection suppression request signal from the subscriber terminal device (1) on the receiving side. A connection suppression control unit (20) that controls connection cancellation of the terminal device, and a suppression number that holds the number of the receiving subscriber who requested the connection suppression and the calling subscriber number of the connection suppression target in association with each other. And a holding unit (25), and if the combination of the calling party's subscriber number and the receiving party's subscriber number matches the set of numbers held in the suppression number holding unit (25), A communication system characterized in that a subscriber terminal device on the receiving side is not connected. 4. A communication system in which a subscriber terminal device is connected to a public line network through an exchange, and the communication system is a switching device for controlling connection between subscriber terminal devices connected to the public line network (4). It is equipped with (2) and is used to confirm that the exchange (2) takes a connection with the subscriber terminal device (1) on the calling side which sends the subscriber as a called number in response to a request from the subscriber. A confirmation number setting unit (32) for setting the connection confirmation number in the confirmation number holding unit (33), a confirmation number holding unit (33) for holding the confirmation number, and the originating subscriber terminal device (1)
And a confirmation notification unit (31) for transmitting a confirmation notification for confirming the connection with the number, and connecting to the subscriber terminal device (1) on the calling side when a request is made from the receiving side subscriber. A confirmation notice for inquiring whether or not to take is output, and the connection with the receiving side subscriber is taken only when the calling side subscriber responds to the confirmation notice by connecting. Communication system.