SU1374447A2 - Payment indicator for long-distance pay phones - Google Patents

Abstract

The invention relates to telecommunications and increases the accuracy of taking into account the cost of calls when organizing communication through transit nodes. The device contains a colloquial block 1, block 2 of the subscriber line blocking, block 3 connections, analyzer 4 codes, tariff 5, generator 6 tariff pulses. The goal is achieved by the fact that in analyzer 4 the output of the register accumulator 10 is connected to the input of the address generation unit 13 via the serially connected definition unit 11 for determining the last dialed code and the valve unit 12, the other input of which is connected to the output of unit 1.

Description

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The invention relates to telecommunications and can be used for automatic telephone long-distance communication with the immediate payment of a call on a zone-time basis.

The purpose of the invention is to improve the accuracy of recording the cost of calls when organizing communication through transit nodes.

The drawing shows a functional diagram of the device pricing for long-distance coin telephones.

The proposed device contains a conversational unit 1, a unit 2 blocking of the subscriber line, a unit 3 connections, an analyzer 4 codes, a tariff 5 and a generator 6 of tariff pulses.

The analyzer 4 codes form the block 7 for determining the beginning and the end of a series of pulses of the dialed number, block 8 for checking the received digit, element 9, register-accumulator 10, block 11 for determining the last dialed code, valve block 12 and block 13 for creating the address.

The charging device for intercity coin telephone operates as follows.

When the handset is picked up in the colloquialist unit 1 and the alert buzzer is received, the subscriber dials the number. The connection unit 3 transmits dialing pulses from the subscriber line to the analyzer 4 codes. In the code analyzer 4, the dial pulses are digitized and stored in the number buffer. In the course of receiving the digits of the number, they are analyzed for correct dialing (for example, the first digit must be a long-distance prefix). If the digit is dialed, the loop break signal is incorrectly applied to block 2 and the latter disconnects the line. If the digit is dialed correctly, it is remembered in the number buffer. Similarly, all digits of the number dialed by the subscriber are stored. After clicking

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the subscriber of the Answer button in the call-in-call unit 1, which means that the dialing is over and the conversation has started, the analyzer 4 codes from the last dialed digit in the direction to the beginning of the dialed number selects three digits spaced (n-1) ) and (p-3) positions, which respectively and

are the first, second and third digits of the last code of the settlement. This code is converted to the address of the permanent memory cell (ROM) of the tariffiser 5, in

which is recorded the code of the area of the settlement, which determines the frequency of the tariff pulses applied to the colloquial unit 1, according to which the control device

the cassing of the colloquial block 1 produces the control of the cassation of coins, i.e. payment of the conversation. If the highlighted last code of the settlement is not

known to the device (the tariff information for this code is not contained in the tariff ROM of the blocker), then the block of the block 2 is given a loop break signal and the line is disconnected.

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In this way, the device allows communication through transit nodes to determine the correct payment regardless of the number of

transit nodes.

Claims (1)

Formula invented and Charging device for an intercity coin telephone set according to auth. No. 1053325, characterized in that, in order to increase the accuracy of counting the cost of calls when organizing communication through transit nodes, the output of the drive register is connected to the input of the block, forming the address through the entered serially connected block for determining the last dialed code and valve block the input of which is connected to the output of the colloquially-calling unit. Subscription