SU1100753A1 - Subscriber counter of costs of telephone calls - Google Patents

Abstract

- SUBSCRIPTION OF COST OF TELEPHONE TALKS, contents of an interface block, the first input and which is connected to an abbreviated line, a power supply unit, the input of which is connected to the second output of the interface block, the second akoA and the third output are connected to the first output and the input of the telephone set, and also connected in series generator, Vliniyu - G iU:;% ;. 13 BLOW & Frequency Divider, control unit and indicator, which is different from the fact that, to ensure accurate accounting of the cost of telephone calls by providing individual control of the cost of calls, an additional interface unit is introduced, the input and output handles are connected to the third output and the third input of the control unit, and a communication analyzer, the first input of which is connected to the fourth output of the interface unit, and the output and the second input of the communication analyzer are respectively connected to the second the input and the second output of the control unit, as well as the switch, the input of which is connected to the fourth output CO of the control unit, the output of the switch is connected to another input of the telephone set.

Description

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ABOUT

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The invention relates to telephony and is intended for time-based accounting of the cost of local telephone conversations both by one subscriber and by collective use subscribers, if there is a centralized cost accounting method and independently of it,

The known devices for recording the cost of telephone conversations include a master oscillator / frequency divider, a power supply unit, controls, counters and indicators. The device operates independently of the automatic telephone station (PBX). Before starting the subscriber, the subscriber manually sets the required tariff, after the called subscriber answers, starts the device counter by pressing the appropriate button and the indicator displays the cost of the leading call ij.

A disadvantage of the known device is the considerable costs, time spent on cost accounting, as well as the inability to take into account the cost of conversations of collective use subscribers.

The closest technical solution to the proposed is a subscriber telephone call cost meter containing an interface unit, the first input and output of which are connected to the subscriber line, a power supply unit whose input is connected to the second output of the interface unit, the second input and the third output of which are connected to the first output and the input of a telephone set, as well as a series-connected generator, frequency divider, control unit and indicator .2.

The disadvantage of this device is that the counting of the cost of a telephone conversation in a given device begins after a certain period of time, specified by the setting of the frequency divider, and does not depend on whether the telephone subscriber does not pick up the called party or not.

The purpose of the invention is to improve the accuracy of recording the cost of telephone calls by providing individual control over the cost of calls.

In order to reach the subscriber / telephone call cost counter containing the interface unit, the first input and output of which are connected to the subscriber line, the power supply unit whose input is connected to the second output of the interface unit, the second input and the third output are connected to the first output and the telephone input and a serially connected generator, frequency divider, control unit and indicator were input, an additional interface unit was introduced, the first input and output of which are respectively connected to the third output the third input of the control unit, and the analyzer of the communication type, the first input of which is connected to the fourth output of the interface unit, and the output and second input of the analyzer of the communication type are respectively connected to the second input and the second output of the control unit, as well as the switch, the input of which is connected to the fourth the output of the control unit, the switch output is connected to another input of the telephone. .

The drawing shows an electrically functional scheme of a subscriber counter of the cost of telephone conversations.

The subscriber cost counter for telephone calls contains an interface unit 1, a power supply unit 2, a telephone set 3, a generator 4, a frequency divider 5, a control unit b, an indicator 7, an additional interface unit 8, a St. zi 9, switch 10.

Interface unit 1 is designed to match the signals in the subscriber line with the levels of the signals in the counter. The power supply unit 2, connected to the interface unit 1, converts the voltage taken from the subscriber line while the handset of the telephone 3 is picked up, into the voltage supplying the indicator 7 and the meter logic chips. When placed, the microtelephone is not supplied to the meter. The communication mode analyzer 9 is designed to recognize incoming and outgoing communications. With incoming calls (when a call is made to a subscriber who has this counter), the charge on the counter should not occur. During outgoing communication (when the subscriber who has this counter, calls someone), the charge is

led after the called party answers. Since the analyzer of the communication mode 9 is connected with the interface unit 1, the communication is considered an outcome, if the subscriber has used the dialer of the telephone set 3. If the subscriber only takes off the receiver of the telephone set 3, the communication is considered incoming and the charge is not made. Generator 4 and frequency divider 5 provide for receiving tariff pulses, each

of which corresponds to one penny of payment. The period of the following tariff pulses is sent depending on the received tariff for local telephone calls and may

be, for example, one and a half minutes,

The control unit 6 controls the start of the indicator 7 and the switch 10. The latter is intended for. enabling or disabling conversational devices of the telephone set 3. This is necessary to accurately start the indicator 7 at the time of the beginning of the conversation. Indicator 7 is, for example, an electromechanical meter. The additional interface unit 8 serves to communicate with additional counters, pre-assignment for individual control of the cost of calls by collective use subscribers.

Subscriber phone call cost works as follows.

When the handset is placed, power is not supplied to the meter and it is disconnected. When picking up the tube, the control unit b supplies the control signal to switch 10, as a result of which the talking devices of the telephone set 3 are connected to the circuit as usual. If the number has not been dialed, the connection is considered to be incoming, block 6 "control prohibits the passage of tariff pulses into indicator 7 and charging is not generated. When dialing a number, the analyzer of type 9 records this fact, and the control unit b again iodizes the control signal to switch 10, after which the microphone of the telephone set is turned off (or bypassed) -. If the called subscriber answered, the calling subscriber is obliged to press the button in the control block 6, which raeroes the passage of tariff pulses to the indicator 7 and sends a signal to the switch 10, which turns on the microphone to the circuit. The control block b is designed so that when you press a button in the current communication mode, it does not produce any effect.

0 on the elements of the meter circuit. The electromechanical / counter included in the indicator 7, summarizes the tariff impulses and provides an indication of the current and total value in rubles and kopecks for telephone conversations. It also ensures the safety of this information when the meter is turned off (when the tube is laid and the power is removed).

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For individual control accounting of the cost of telephone conversations made by subscribers from one telephone set, there is an additional counter, connected 1st to an additional interface unit (the number of additional counters is not limited and is determined by the number of subscribers using the collective telephone).

0 Each subscriber can access an indi- vidual additional counter, for example, using a key.

- Thus, the proposed abo nenthe counter of the cost of telephony calls in comparison with the known one allows to increase the accuracy of the account of the cost of calls.

Claims (1)

SUBSCRIBER COUNTER FOR COST OF TELEPHONE TALKS, containing an interface unit, the first input 'and the output of which is connected to the subscriber line, a power supply, the input of which is connected to the second output of the interface unit, the second input and third output of which are connected to the first output and input of the telephone set, and series-connected generator, * A frequency divider, control unit and indicator, which, in order to improve the accuracy of recording the cost of telephone conversations by providing individual control of the cost of calls, have an additional interface unit, the first input and output of which are respectively connected to the third output and third input control unit, and a communication type analyzer, the first input of which is connected to the fourth output of the interface unit, and the output and second input of the communication type analyzer are respectively connected to the second input and second The direct output of the control unit is also a switch, the input of which is connected to the fourth output of the control unit, the output of the switch is connected to another input of the telephone. „SU.„ J 100753