RU1800647C - Input cord set for analog automatic telephone exchange - Google Patents

Abstract

The invention relates to devices for an incoming cord kit for an analogue telephone exchange and can be used in telephony. SUMMARY OF THE INVENTION: The incoming cord kit comprises a communication unit with a calling subscriber, a communication unit with a called subscriber, a response simulator, a hang up simulator, first, second and third switches. 2 ill.

Description

The invention relates to automatic telephone exchanges (PBXs) and can be used to provide additional inbound services to subscribers of analogue exchanges.

The purpose of the invention is to reduce the volume of additional services equipment and to reduce the load of the subscriber search stage of the telephone exchange.

In FIG. 1 shows an incoming cord kit for an analog automatic telephone exchange, which provides subscribers with additional services (HSS), which contains a unit 1 for communicating with a calling subscriber, a unit 2 for communicating with a called subscriber, a simulated answer 3 of the called subscriber, a simulator 4, and the first a switch 5, the inputs / outputs 6, 7 of which are inputs / outputs for communication with a frequency transceiver.

The inputs 8-11 of block 1 are the inputs of the HSSA, and the outputs 12-16 of block 2 are the outputs of the HSSA. Besides. VShKU contains the second

the switch 17 and the third switch 18. The switch 17 is connected between the inputs / outputs 6, 7 for communication with the frequency transceivers and wires 15, 16 a and b of the talk line of the communication unit 2 with the called subscriber. A switch 18 is connected between the terminals 19, 20 of the talk lines of the calling unit 1 and the leads 21, 22 of the talk lines of the calling unit 2.

The outputs 23, 24 of simulators 3, 4 are connected to the wires 10, 11 of the talk line of the communication unit 1 with the caller.

The switches 5. 17 and 18 have control inputs 25-27, and blocks 1 and 2 have control inputs 28, 29, which are additional control inputs of the HSS.

In FIG. 2 shows the communication of the HSCA 30 with frequency transceivers 31 common to the HACC group, which, through the BVV-2 input-output unit 32, are connected to the control device 33. In addition, the HSCA 30

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connected to the device 33 through the BVV-1 input-output block 34, the switching point of the VSHKU is between the outputs of the group search stage 35 with the marker 36 and the inputs of the subscriber search stage 37 with the marker 38 of links c, d. Turning on the VSHKU 30 is similar to turning on the incoming cord set 39 of the VSHK of known exchanges.

Consider the work of the incoming cord

a complete set of additional services

VShKU in conjunction with the associated PBX equipment in the following example. Assume that the subscriber with number 5522200 ordered the service for restricting incoming calls, and the number of the subscriber who is allowed to receive incoming calls is 5521040. This information is stored in the control device 33.

When an incoming connection is established in the marker 36 of the last group search stage 35, the direction in which the HSS 30 is connected is determined by the number of thousands and hundreds of the subscriber number, and a free HSS is selected. Occupation of the Higher School of Law is taking place. The I / O 28 through the I / O block 34 generates a request for interruption of the control device 33. The device 33 at the input 25 acts on the switch 5 and connects the frequency transceiver to the talk wires at the input of the communication unit 1 with the calling subscriber NWP 31. After that, through NWP 31 and I / O block 32, using the control device 33, hundreds, tens and units of digits of the number of the called subscriber are requested and received, and then the frequency signal is transmitted to the calling subscriber laziness compounds.

In principle, in the control device 33, the number of the called subscriber determines the type of the additional service ordered by him, in our case, this is the restriction of the incoming call.

Then, the caller ID is identified using the telephone number identification equipment (AON) installed on the telephone network. To this end, the command of the control device 33 imitates the response of the called subscriber using the simulator 3 and transmits a 500 Hz signal from the NWP 31. The requested information about the number of the calling subscriber is received using the same NWP 31, input / output unit 32, and control device 33.

The device 33 compares the received number of the caller with the number of the subscriber, in our case, with the number 5521040, which is allowed

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incoming communication and which is stored in the device 33 at the address of the subscriber with the number 5522200. If the compared numbers coincide, they proceed to the further establishment of the incoming connection. To this end, by the command of the control device 33 transmitted through the input / output unit 34 to the called subscriber unit 2, the unit 38 engages in the marker 38 of the links c, d of the subscription search stage 37. Then, at the command of the control device 33, the talk wires 15, 16 are connected to the inputs / outputs 6.7 of the NWP 31 using the switch 17. The information about the number of the called subscriber necessary for the operation of the marker 38 s, d is transmitted at the request of the marker 38 from the control device 33 .

After receiving a signal from the marker 38c, d in the device 33, the end of the connection is turned off using the switch 17 of the NWP 31.

The induction call is transmitted to the called subscriber and the response signal is received using the communication unit 2 with the calling subscriber. The response signal is transmitted from block 2 to the control device 33, and from the control device 33 through the input / output block 34 at the input 27, the switch 18 is affected by which the connection between the called and calling subscribers is disconnected.

If the above compared subscriber numbers do not match, the control device 33 acts through the I / O unit 34 on the called-up call simulator 4, and the call-off signal is transmitted to one of the calling wires in the direction of the calling subscriber.

When the connection is disconnected, the busy signal is removed from the input of the HSSA, as a result of which all the equipment discussed above is returned to its original state.

Claims (1)

1. An incoming cord kit for an analog automatic telephone exchange, comprising a response simulator and a reject simulator, having control inputs and outputs, the outputs of which are connected to the wires a and b of the talk line, to which the first switch is connected, whose inputs and outputs are inputs and outputs for communication with a frequency transceiver, as well as a communication unit with a calling subscriber and a communication unit with a called subscriber, the inputs and outputs of which are the inputs and outputs of an incoming cord set, and in order to reduce the volume of additional services equipment and reduce the load of the subscriber search stage of an automatic telephone exchange, the second and third switches are introduced, the second switch being connected between the inputs and outputs for communication with frequency transceivers and conversational wires a and b lines of the communication block with the called subscriber, the outputs of the response simulator and the simulator are disconnected from the wires a and b of the talk line of the communication block with the calling subscriber, and a third switch is connected between the terminals conversational unit communication links with the calling 0 5 the subscriber and the communication unit with the called subscriber, the control inputs and outputs of which and the control inputs of the switches are additional control inputs of the incoming cord set. 2, A kit according to claim 1, characterized in that, in order to reduce the equipment of additional services of the automatic telephone exchange, the inputs and outputs of the communication unit with the caller are inputs and outputs of the cord set for connecting to the outputs of the group search stage of subscribers having additional services. sa / to / I am going out / Zshod m Ј36 //) (Riga 1 J4 g 32 L Jj /2.2