SU1670801A1 - Method for connecting incoming call to telephone subscriber - Google Patents

Abstract

The invention relates to communication technology. The purpose of the invention is to expand the functionality by providing the called subscriber (BA) before answering the service call in the form of information about the number of the BA and increasing the amount of information from the BA. The reception of the call signal (CB) and the transmission of the control signal (CK) of the call are performed on the PBX of the called subscriber, and the transfer of the CB and the signal of the (CH) VA number to the BA side are performed simultaneously after the received subscriber receives the BA number signal on the PBX. After receiving the CB on the side of the VA, before forming the response signal, form and transmit a preliminary response signal, after receiving which on the PBX of the called subscriber, the transmission of the CB is transmitted and the caller's CH is transmitted in the form of a speech signal, which is received on the VA side. After receiving the BA number on the PBX, the request signal is first generated and transmitted, and then the additional information signal, which is received on the PBX of the called subscriber and transmitted to the BA side together with the SN. 2 hp ff, 1 ill.

Description

The invention relates to communication technology and can be used in coordinate PBX.

The purpose of the invention is to enhance the functionality by providing the called subscriber before his answer to the service call in the form of information about the calling number and increasing the amount of information about the calling subscriber.

The drawing shows a block diagram of a device that implements the proposed method.

The device contains the telephone set 1 of the called subscriber, a set of 2 additional services (CDA), subscriber set 3 (AC) of the coordinate automatic telephone station (ATS) 4. Lastly it contains step 5 subscriber search (AI), incoming set 6 (VShK), step 7 group search (GI). In addition, the device contains a step 8 GI, included in the ATC 9, which includes the caller, a cord set 10 (MSS), step 11 AI, subscriber set 12, to which the subscriber line 13 of the caller is connected and the transmitter 14 of the automatic detection equipment Caller ID (Caller ID).

The PBX 4 also includes the stationary generator 15 of the inductor call signal and the generator 16 of the buzzer signal.

about VI

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The telephone set 1 of the called subscriber is connected to the CDU 2 by the subscriber line 17. The CDU 2 is connected to the device 18 for requesting and receiving information about the caller's number (USPI), which in turn is associated with the input / output unit 19 via the interface 20.

The I / O unit 19 is connected by data buses 21, address buses 22 and control bus 23 to control device 24. Each KDU 2 (only one set of the group is shown in the drawing) via buses 21, 22 and 23 and its own I / O unit 25 is connected to the control unit 24, which is also connected to the KDU 2 group by a common initialization circuit 26 service request.

CDU 2 contains a switch 27 of conversational wires, the input 28 of which is connected to subscriber line 17 through the conversational path separation unit 29. The input / output 30 of the switch 27 is connected to the input of the AC 3 and the input of the stage 5 AI. The input / output 31 of the switch 27 is connected to the SPD 18, and the input / output

32 of this switch is connected to the receiver

33 signal inductor call, simulator 34 of the response signal of the called subscriber and the receiver 35 of the signal of the calling subscriber.

Caller subscriber line 17 is connected to callee response signal receiver 36.

The subscriber line 17 is connected with the separation unit 29 and the response signal receiver 36 via the switch 37.

The outputs of the receivers 33, 35 and 36 are connected to the four-wire bus 38.

The input of the inductor call signal 39 is connected to the stationary generator 15, and its output is connected to the subscriber line 17 via the switch 37. The input of the buzzer signal transmitter 40 is connected to the common station 16 generator of the buzzer signal, and its output is connected to the input 32 of the switch 27 .

Switch 37 by one additional input 41 is connected with the output of the digital information about the number of the caller in voice signals common for the group KDU 2 of the converter 42. The input 43 of the converter 42 is connected to the input-output unit 44 of the digital information-to-speech converter, which in turn is connected to the control unit 24 of said buses 21, 22 and 23.

The switch 37 is connected to another additional input 45 to the output 46 of the transceiver 47, which is connected to the common telephone network of the city by a data block (channels 48 and 49).

The transceiver 47 is associated with a busbar control unit 24, 21, 22 and 23. The display 50 is connected to the telephone set 1 via a toggle switch 51. Unit 19

The I / O I / O is connected, in a manner similar to unit 25, with the device 24 for controlling the initialization circuit 52.

The essence of the method of establishing an incoming connection to the subscriber of the telephone network is as follows.

Prior to the occurrence of an incoming call, the subscriber line 17, whose loop is open, is disconnected to KDU 2 using the switch 27 from the entrance to

5 switching field level 5 subscriber search.

When an incoming connection is received in the receiver 33 of the inductor call signal KDU 2, the first call of the inductor call signal is received. The fixation in the CDU 2 of the received signal serves as an interrupt request signal of the block 24 transmitted via the bus 38 through the set I / O unit 25 to the initialization input 26 of the block 24, in response to

5, the interrupt request control unit 24 identifies the set of CDU 2 from which this signal originated, and identifies the reason for the interruption request (in this case, the fact of the inductive call)

0 by analyzing the output information of the receivers 33, 35 and 36 (this information enters the control block 24 via the bus 38 and block 25).

They form a signal simulating the callee's branch, for which they close the loop between the speaker wires to which the simulator 34 is connected using the switch 27 (the simulator 34 works, as well as the transmitters 39 and 40 and the switches 27 and 37, is carried out under the control of unit 24 through the set I / O unit 25 (communication between unit 25 and the said elements KDU 2 is not

5 is shown).

They form the request signal of the caller’s number, transmit it to the AON equipment, receive the requested information. For this purpose, in the flea 24 of the control unit, the fidelity of the USPI 18 is determined and, if it is free, it is marked as busy. Connect the UZPI 18 to the speaker wires of the KDU 2 via the switch 27, transmitting from block 24 a command to connect the switch 27 of the input 31 to the output 30.

The request signal from the SPD 18 is transmitted in the form of a frequency sending frequency of 500 Hz with a duration of 100 ms through a loop of conversational wires closed in KDU after 300 ms

after generating a response imitation signal.

On the side of the called subscriber in the SPI 18, the requested information about the caller's number transmitted by the frequency non-terminating code from the AON equipment installed on the PBX, in which the caller is included, is received.

Further, the operation of the SPD 18 takes place under the control of the commands generated in the block 24 and transmitted to it via the I / O block 19 of the SPD and the interface 20. So. For example, transferring information about the caller's number from USPI 18 to block 24 takes place via its commands also through block 19, in which, after receiving the number in USPT 18, an interrupt request signal is sent to block 24 via initialization circuit 52.

After receiving the information about the caller's number, the call signal is transmitted from the CDU 2 by the commands of the unit 24 to the called subscriber, and the calling subscriber is sent to the call control signal (CPV), the call signal transmission circuits and the CPV circuit are separated by the switch 27 (note that the CPV signal a subscription, is first received from the GCW 6 in the usual manner for telephone systems, and then from KDU 2 in the manner described).

The information about the number of the calling subscriber is transmitted to the called subscriber received in the SPI 18.

Within the framework of claim 1, the operation of transmitting a call signal to the called subscriber and transmitting information about the caller's number is combined. For this, at the command of block 24 in switch 37, subscriber line 17 is connected to an additional input 45, and from block 24 to transceiver 47 information about the caller's number is entered and transmitted via subscriber line 17 to display 50 via closed contacts of a toggle switch 51 1. The fact that the digital information on the caller's number appears on the display 50 indicates that an incoming call has occurred (when digital information is received in the display 50, it can also be formed for convenience and audio signal).

Upon completion of the transmission of information about the number by the command of the block 24, the switch 37 disconnects the subscriber line 17 from the auxiliary input 45 and again connects it to the separation block 29 and the input of the response signal receiver 36.

In this way, the called subscriber receives information about the caller's number before answering the incoming call, which allows him to selectively restrict incoming calls.

The called party’s response signal to the incoming call is transmitted by picking up the handset. This signal

0 responses are received at the PBX in the receiver 36. The signal at the output of the latter is processed in the same way as the signal at the output of the receiver 33 of the inductor call signal was processed, forming the interrogation signal for interrogation and polling the status of all receivers 33, 35 and 36 KDU 2.

After receiving the response signal, the block 24 sends to the switch 27 a command to connect the connection, i.e. to shut off

0 transmitter 40 of the buzzer signal from output 30 and connecting it to input 28.

If the called subscriber did not answer the incoming call, after the caller in the receiver 35 picks up the ringing tone.

5 The interaction of the receiver 35 with the block 24 is similar to that considered for the receiver 33.

To implement the method of claim 2, the following operations are performed.

0 A call signal is transmitted to the called subscriber after receiving the information about the calling subscriber number by the command of block 24 from the transmitter 39. This call is made by sending to

5 subscriber line 17 from the output of the transmitter 39 through the switch 37 of the inductor signal.

After receiving on the side of the called subscriber of this inductor call signal and removing the handset by the subscriber, a preliminary response signal is transmitted to the PBX.

According to this method, a subscriber picking up a handset is identified on the PBX as a response signal (main) only if the handset is off after sending the caller's number information to the subscriber. Otherwise, removing the microphone

The 0 tube is identified as a pre-response signal.

The preliminary response signal is received at the receiver 36 response and is entered into block 24 in the manner described above,

5 after which, at the command of block 24, the callee is transmitted information about the number of the caller. This transmission is carried out in the form of speech signals from the converter 42 according to the commands of the control unit 24 via the converter's vaod-output unit 44 after the subscriber line 17 is connected to the input 37 to the input 41 (also by the command of the unit 24).

The called subscriber listens to the caller's number transmitted to him and makes a decision on the operational restriction of the incoming communication.

When deciding to answer an incoming call, the called subscriber, after briefly opening the loop of subscriber line 17 (using a telephone lever switch or dialing 1), transmits a response (main) signal to the PBX, which is received at receiver 36 and transmitted to block 24, after which the latter generates a command to switch the conversational path by the switch 27 (the command to connect input 28 to output 30 in switch 27 and disconnect from that output 32 to the transmitter 40 the ringing tone control signal transmitter).

To implement the method of claim 3, the following operations are performed.

After receiving the requested information about the caller's number and entering it via block 19 into block 24, the information about the caller's number is transmitted (via the commands of block 24) via transceiver 47 via channel 49 to the common data network for the telephone network. The latter stores additional information about the subscribers of the telephone network (for example, their address, surname, etc.), ordered by their telephone numbers. When implementing the method by the caller's number in the data bank (not shown), additional information is read from the data bank memory and transmitted via channel 48 to transceiver 47 at the PBX, in which the called subscriber is included, and from there to block 24. After the transfer additional information, as evidenced, for example, by the receipt from the databank of a sign (symbol) corresponding to the end of the transmission of information, is transmitted from block 24 via transceiver 47, switch 37 and subscriber line 17 to the called subscriber the number his subscriber together with additional information obtained from the data bank.

Claims (3)

1. A method for establishing an incoming connection to a subscriber of a telephone network, which means that a call signal is generated and transmitted on the caller side, and simultaneously a call signal is formed and transmitted to the calling subscriber; on the caller side, after receiving the call signal, the response signal, after receiving which, at the automatic telephone exchange, a connection is established between the calling and called parties, is formed and transmitted to the automatic telephone station the caller’s signal, a number request signal, after receiving which, the caller’s number signal is formed and transmitted, in order to extend its functionality by providing the callee prior to its response to Calling the service in the form of information about the caller’s number, receiving the call signal and sending the call control signal are performed at the telephone station of the called subscriber, and the transmission of the call signal and the caller number signal to the side of the called subscriber is performed simultaneously after receiving the signal on the automated telephone station of the called subscriber caller numbers. 2. Method pop. 1, characterized in that after receiving the call signal on the side of the called subscriber, before generating a response signal, they form and transmit a preliminary response signal, after receiving which at the automated telephone exchange of the called subscriber stop transmitting the call signal and transmit the signal of the calling subscriber number converted to a voice signal that is received on the side of the called subscriber. 3. The method according to claim 1, characterized in that, in order to increase the amount of information about the caller, after receiving the number of the caller at the automatic telephone station, the request signal is generated and transmitted, and the additional information signal is generated and transmitted at the automatic telephone station the called subscriber and transmit to the side of the called subscriber together with the signal number. Stulny Lee OC 0 (50- ATS automatic telephone exchanges, b which includes the output of the PBX abt