SU1290560A1 - Telephone switching system of inquiry service - Google Patents

Abstract

The invention relates to telecommunications and provides the ability to automatically display the caller's number from the help desk operator. The telephone switching system of the reference service contains N subscriber telephones (TA) 1, N subscriber sets 2, call finder (IV) 3, TA 4 operators, power sources 5, 12, operator kit (KO) 6, over-tone generators 7, 8, an operator button 9, a power source turning on unit 10, a button pressing time detection unit 11, a caller number indication unit 13. When any handset subscriber is picked up, the command is sent to IW 3, which searches for the calling subscriber, establishes the connection, and creates the command Call KO 6. KO 6 sends a drive current signal to the TA 4 operator who is requesting help. To shut down the forgetful subscriber, the operator briefly presses button 9, and block 11 blocks the operation of subscriber set 2. When the button 9 is pressed for a long time, power source 5 is disconnected. The number of the subscriber being served is indicated by block 13, overtony generators 7.8, IV 3 and operator set 6 . 1 hp f-ly, 2 ill. Q (L to; о о СП Од Ш FIG1

Description

Telephone switching help system refers to telecommunications.

The purpose of the invention is to provide the opportunity. automatic indication of the caller's number from the help desk operator.

FIG. Figure 1 shows the electrical circuit diagram of the telephone switching system of the help desk; in fig. 2 is a structural electrical circuit of the caller number display unit.

Telephone switching system

The reference service contains N subscriber telephones (TA) 1 ... 1, N subscriber sets 2 ... 2, 3 call finder, 4 operators telephone set, 5 power source, 6 operator sets, first and second over tone generators 7 and 8 , button 9 of the operator, power supply switching-on unit 10,: button pressing time recognition unit 1 1, additional power supply 12 and calling station number indication unit 13, the caller number displaying unit 13 comprising first and second receivers 14 and 15 overtonal frequencies s, counter 16, decoder 17 and digital indicator 18.

The device works as follows.

When any of the subscribers, for example the TA1, picks up the handset from the subscriber set 2, it is energized and is provided with the passage of the conversational talker to the conversation of the searcher of the 3 calls. Simultaneously from the control output of the subscriber set 2, a command for starting and stopping the searcher is given. The first determinant input is a seeker of 3 calls. The last option is to search for the caller and hold the connection. After the connection is established, the call finder 3 issues the operator set 6 with the command Calling the operator’s phone 4, after which the operator’s set 6 sprinkles a current signal to the telephone 4 of the operator, and the latter, in the receiver’s handset, provides reference information to the recipient. When the caller and operator put in their pipes, all

ten

 .

f5

20

25

thirty

the instruments are reset.

In case the calling subscriber forgot to hang up his handset, the operator’s set 6 will send a call signal when the operator tries to return his handset to its place. To disable the forgetful subscriber, the help desk operator briefly presses the operator's button 9 and the button 11 recognizes the duration of pressing the button on the blocking input and blocks the operation of subscriber set 2, which stops the command to be sent to a certain one. 3 call call finder input, which interrupts the call signal. In this case, the subscriber set 2 becomes self-blocking until its subscriber has put it down and picks up the phone.

When the operator's button 9 is pressed for a long time, unit 11, which receives power from an additional power source 12, sends a command to unit 10, which turns off the power source 5, stopping the supply of voltage to the power inputs of blocks 2,3,6, 7 and 8.

When the operator’s button 9 is briefly pressed again, unit 11 sends a command to unit 10 to the key input, which includes the source

power supply 5. At the same time, all N subscriber sets are set in working condition via the fault inputs, excluding damaged (closed) subscriber lines.

During device operation, unit 13 allows displaying the number of the served subscriber. For this, the first over-tone generator 7 Sends a signal with a frequency, f, and the second over-tone generator 8 sends a signal with a frequency f to the inputs of the 3 call finder. Since each subscriber is assigned his own input, his

the number is uniquely determined by the position of the 3 call finder. Thus, during the operation of the TAl, one impulse with frequency fi and through it the inputs

receivers 14 and 15; From the output of receiver 14, a pulse sets the counter 16 to the first state, which via digital decoder 17 displays a digital indicator 18. Operator call

N-1 add N-2 pulse to the state of the counter. When servicing the subscriber TA1, the frequency input, which, having passed through it and the receiver 15, sets the counter 16 to the zero state, enters the number input of the operator's set 6. In order to eliminate a false account in the process of servicing a subscriber, the currently operating receiver blocks the input of the second receiver.

Formula of the invention

Claims (2)

1. Telephone switching system of a referral service, containing N and Bonient telephone sets, N subscriber sets, call finder, telephone operator's telephone, power source, the N outputs of the subscriber telephone sets being connected to the talk inputs of the N corresponding subscriber sets, the conversational outputs of which are connected respectively to The N talker inputs of the call finder, while the control outputs of the N subscriber sets are connected respectively to the N definitive inputs of the searcher Islands, and the output of the power supply is connected to feed inputs N and searcher subscriber sets the call, characterized in that in order to provide the possibility of automatic invariant Caller ID number from the help desk operator, the operator’s kit, the first and second over-tone generators, the operator’s button, the power source switch-on unit, the button pressure recognition unit, the additional power supply unit and the caller’s number indication unit, and the voice output the search for the coils is connected to the voice input of the operator’s set, the voice output of which is connected to the terminals of the telephone set of the operator and the input of the indication unit of the caller's number controlling call finder output 905604 connected to the holding input of the operator's set, the signal input of which is connected to the first outputs of the first and second supral tone generators, the second output of the first supernuminal generator is connected to N-1 signal inputs, the call finder, the Nth signal input of which is connected to the second output of the second an overhead generator, the output of the operator button is connected to the input of the button pressing duration recognition unit, the first control output of which is connected to the control 15 inputs of N subscriber sets, the output of the additional power source is connected to the power inputs of the block - turn on the power source and block the recognition of the duration of pressing 20 of the button, the second control output of the button duration recognition unit is connected to the control input of the power source switch-on unit, the output of which is connected to 25, a control input of a power source, the output of which is connected to the supply inputs of the operator kit, the first, second over-tone generators and the operator button. 2. The system according to claim 1, wherein the caller's number indication unit contains the first and second receivers of the over-tone frequency, a counter, a decoder and a digital indicator, the outputs of the first and second receivers of the supernatural frequency being connected to the counting and resetting inputs the counter, the output of which is connected via a decoder to the input of a digital indicator, and the control output and the blocking input of the first receiver of a supernual frequency are connected respectively to the blocking input and controlled by the km output torogo supersonic frequency receiver, wherein the combined supersonic frequency inputs of the first and second receivers are the entrance of the display unit number of the caller.