JPH0831931B2 - Communication management device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a communication management device that is connected between a telephone line and a terminal device and manages relay and communication between these.

[Prior Art] Conventionally, when a coin is inserted for communication, this type of communication management device selects whether the coin is right or wrong, and if the coin is a true coin, supplies a current to a terminal device to supply a current. The device is activated and the telephone line is seized. Then, when a dial signal arrives from the terminal device by operating the dial key of the terminal device, the minimum charge corresponding to this dial number is calculated, and if a coin satisfying this minimum charge has been inserted, this dial number will be A dial signal is sent to the telephone line in accordance with the minimum charge, and if the inserted coin is identified as less than the minimum charge, such as international calls, the telephone line is opened when the dial number is identified. It is supposed to do.

[Problems to be Solved by the Invention] The above-described conventional communication management device captures a telephone line when a coin is inserted, and subsequently inputs a dial number from a terminal device to calculate a minimum communication charge. When the amount of coins inserted is less than this, the telephone line is opened immediately so that unnecessary exchange operation is performed to the exchange, and the terminal device reinserts coins and dials again. There was a troublesome problem of having to perform the operation.

[Means for Solving the Problems] In order to solve such problems, the communication management device according to the present invention inputs a dial number from a terminal device and calculates a minimum communication charge according to the dial number. Means and a judging means for comparing the calculation result of this calculating means with the input communication charge to determine the amount thereof, and a telephone line if it is determined that the input communication charge is higher than the minimum charge. It is equipped with a control means that captures and sends a dial signal according to the entered dial number to the telephone line, and displays a reminder to enter the communication charge when it is determined that the charge is less than the minimum charge.

[Operation] When it is determined that the input communication charge is higher than the minimum charge, the telephone line is captured, a dial signal corresponding to the dial number input from the terminal device is sent to the telephone line, and the minimum charge If it is determined that the number is less than the above, a reminder to enter the communication charge is displayed.

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

FIG. 1 is a block diagram showing a configuration of an embodiment of a main part of a communication management device according to the present invention. The communication management device is connected between the telephone line and the terminal device 1 described later,
The terminal device 1 is a device that manages communication charges and the like when the terminal device 1 communicates using a telephone line. In FIG. 1, reference numeral 1 is a terminal device connected to this communication management device for communicating and communicating with a partner device via a telephone line, 2 is a control circuit for controlling the communication management device, and 3 is a terminal device 1 closed by the terminal device 1. Loop / dial detection circuit for detecting a loop and dial signal, 4 is a current supply circuit for supplying a current to the terminal device 1, 5 is a line protection circuit for protecting the device from noise or overvoltage from the telephone line, and 6 is A DC loop / incoming / polarity reversal detection circuit for detecting an incoming signal to the terminal device 1 coming from the telephone line and detecting a polarity reversal or the like due to the other party's response,
7 is a DC loop dial control circuit for closing the DC loop of the telephone line and sending a dial signal to the telephone line when the loop of the terminal device 1 and the dial signal are detected, 8 is a relay circuit, and 9 is A buzzer that sends a reminder sound or the like when the number of inserted coins is insufficient, 10 is a display circuit that performs various types of display, and 11 is a coin unit that detects inserted coins and performs sorting and the like. In addition, KS is a contact of a special key for making a call in response to an incoming call at the time of a power failure, a, b and d are contacts of each relay, T1 and T2 are transformers, DB is a diode bridge, and C1 to C3 are A capacitor and R are resistors.

Next, the operation of the communication management apparatus configured as above will be described.

When this communication control unit is energized, the telephone line terminal
When an incoming call arrives from the telephone line via L1 and L2, this incoming call is detected by the DC loop / incoming call / station line inversion detection circuit 6 and sent to the control circuit 2. The control circuit 2 drives the relay circuit 8 based on this incoming signal to switch the relay contact b to the contact a side and ring the bell in the terminal device 1. When the control circuit 2 detects a response to the incoming call from the terminal device 1 via the DC loop / incoming call / polarity reversal detection circuit 6, the control circuit 2 recognizes that the call is in progress, and then the The termination of the terminal device 1 is monitored via the termination device, and if the termination is detected, the termination process is performed.

 Next, the transmission operation of the terminal device 1 will be described.

When the communication management device is in the energized state, a coin is inserted for the terminal device 1 to transmit, and the control circuit 2 drives the relay circuit 8 to switch the relay contact d to the DC loop / dial detection circuit 3 side. Current is supplied to the device 1. When the loop is closed by off-hook, the control circuit 2 detects this via the loop dial detection circuit 3 and the terminal device 1 via the transformer T2 and capacitors C2 and C3.
Send dial tone to. When a dial signal is subsequently sent from the terminal device 1, the loop dial detection circuit 3 or the transformer T2 detects this dial signal,
Calculate the minimum communication charge according to this dial number.
Then, when the calculated charge is larger than the amount of coins that have been inserted, a reminder for additional insertion is made, but when the amount of coins that have been inserted is larger, the relay circuit 8 is driven and its contact a To the diode bridge DB side and the contact b to the contact a side, and the DC loop dial sending control circuit 7
Control the DC loop of the telephone line to automatically send the dial signal corresponding to the input dial number to the telephone line.

After the transmission of the dial signal is completed, the control circuit 2
Connect the transformers T1 and T2 to make the terminal device 1 hear a ringback tone indicating that the other party is calling from the telephone line or a busy tone that indicates that the other party is busy. The polarity inversion signal due to the response of the other party is detected through the detection circuit 6. And
When the other party's response is detected, the closed relay contacts a and d are switched, and communication is started between the two. As a result, the control circuit 2 charges the unit communication charge every predetermined time. If it is stored and is insufficient, processing such as controlling the buzzer 9 to send a reminder sound is performed. In this way, a call or communication is performed with the partner device. After that, the end of these is monitored, but the control circuit 2 determines the end of communication by the signal of the loop open of the terminal device 1 detected by the DC / loop / incoming / polarity inversion detection circuit 6, and the loop When is released, the end call processing is executed.

Next, the detailed operation of the control circuit 2 of this communication management apparatus will be described based on the flowchart of FIG.

In step 50, it is determined through the coin unit 11 that a coin has been inserted. However, the insertion of a coin is detected, it is determined that this is a true coin, and the amount of this coin is calculated. As a result, in step 50, "Y" If it is determined that the relay circuit 8 is driven, the relay contact d is switched to the loop dial detection circuit 3 side to supply the current from the current supply circuit 4 to the terminal device 1 (step 51). Then, the loop dial detection circuit 3 detects a dial signal from the off-hook of the terminal device 1 and subsequent dial key operation. In step 52, it is determined that the dial signal has been received, and "Y" is received. Is determined, the dial identification fee is confirmed in step 53, that is, the minimum communication fee corresponding to the received dial number is calculated.

When the minimum communication charge according to the dial number is calculated in this way, in step 54, it is determined whether or not the amount of the inserted genuine coin is equal to or more than the minimum communication charge calculated above,
If this is the minimum communication charge or more and it is determined as "Y" in step 54, the relay circuit 8 is determined in step 55.
Drive the relay contact a to the diode bridge DB side,
Also, the relay contact b is switched to the contact a side, the DC loop dial sending control circuit 7 is controlled to capture the line, and the dial signal corresponding to the received dial number is automatically sent to the line. The step 56
And go to the end.

Further, when the inserted genuine coin is less than the minimum charge and it is judged as “N” in step 54, an additional coin reminder display is displayed on the display circuit 10 and the buzzer 9 is displayed in step 57.
A reminder sound is sent to, and it is determined in step 58 that additional coins have been inserted, and when additional coins are inserted, the process returns to step 54 and the comparison judgment of the inserted genuine coin and the minimum charge is performed again.

As described above, the present invention compares the minimum communication charge according to the dial number with the amount of specie coins inserted before the telephone line is captured, and if there are many coins inserted, the telephone line is immediately The automatic dialing is carried out by capturing, but when the inserted genuine coin is insufficient, the telephone line is not captured and a reminder display for additional insertion is displayed.

In the present embodiment, the case of collecting the communication charge has been described by taking the case of coins as an example, but it is not limited to coins, and a charge collecting form such as a bill or a prepaid card may be used.

[Effects of the Invention] As described above, the communication management apparatus according to the present invention captures a telephone line and responds to a dial number sent from a terminal device when the input communication charge is higher than the minimum charge. The dial signal is sent out to the telephone line, and when it is less than the minimum charge, it is configured to display the prompt for the introduction of the communication charge, so that there is no useless calling operation to the exchange, and On the side of the terminal device, there is an effect that the troublesome redispatching operation is eliminated.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a communication management device according to the present invention, and FIG. 2 is a flow chart for explaining the operation of this device. 1 ... Terminal device, 2 ... Control circuit, 3 ... Loop / dial detection circuit, 4 ... Current supply circuit, 6 ... DC loop / incoming / polarity reversal detection circuit, 7 ... DC loop / dial control circuit , 8 ... Relay circuit, 9 ... Buzzer, 10 ...
Display circuit, 11 ... coin unit, KS ... special key contact,
a, b, d …… Relay contact, T1, T2 …… Transformer, DB …… Diode bridge, C1 to C3 …… Capacitor.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Morifumi Okugawa 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Toshio Suzuki 1-16-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation

Claims (1)

[Claims] 1. A communication management device which is connected between a telephone line and a terminal device and which manages relay and communication between the telephone line and the terminal device, by inputting a dial number from the terminal device. The calculating means for calculating the minimum communication charge according to the dial number, the judging means for comparing the calculation result of this calculating means with the input communication charge to determine the amount of the communication charge, and the input communication charge If it is determined that the charge is higher than the minimum charge, the telephone line is captured and a dial signal corresponding to the entered dial number is sent to this phone line. If it is determined that the charge is lower than the minimum charge, the communication charge A communication management device, comprising: a control means for displaying a request for closing the device.