KR20000044229A - Method of providing sender's information in exchange system - Google Patents

Abstract

PURPOSE: A method of providing sender's information is provided to inform a subscriber of sender's information through subscriber's terminal in an exchange system. CONSTITUTION: A method enables an exchange system of FSK(Frequency Shift Key) type to provide sender's information. It comprises the steps of: analyzing sender's information when it received with call connected signal(104); outputting sender's information and call processing signal to a terminal of analog receiving subscriber(108); checking whether the receiving subscriber is connected with a call(110), if does, controlling a link between a sender and a receiver(112); checking whether a call is over, while the sender and the receiver are being linked(116), if over, disconnecting all links formed when the call is connected; operating ring output mode after outputting sender's information and a call process signal to the analog subscriber's terminal of the receiver, and checking whether a call is connected; and excluding the lines formed for providing the sender's information if the sender transmits signal, while a ring output mode is operated, because the call is over.

Description

How to provide outgoing subscriber information in exchange system

The present invention relates to a method of providing caller information to a called subscriber in an exchange system, and more particularly, to a method of notifying caller information to an analog subscriber.

Typically, when a call is exchanged between exchange systems, caller information is provided using a signaling scheme used in the exchange system. Such signaling methods include a number 7 (No. 7) signal processing method and an Al 2 (R2) signal processing method. In this way, the caller's information is exchanged between the switching systems to form a call. In addition, subscribers connected to the switching system are classified into analog subscribers and digital subscribers. Although only one communication line is given to the analog subscriber, the digital subscriber is typically connected by a channel of 2B + D. Therefore, the sender's information transmitted between the switching systems receives the sender's information from the switching system through the D channel in the case of the digital subscriber. In the case of a digital subscriber telephone, the information of the caller received from the switching system can be displayed and notified. However, analog subscribers are not provided with such a separate channel or line, so that they can only receive ring-received signals from the switching system. As a result, the analog subscriber's phone could not verify the caller's information.

Therefore, analog subscribers also want to be able to receive and verify caller information, a service provided to digital subscribers. However, until now, the exchange system does not provide this, so there is no way for the analog phone to verify the caller's information.

Accordingly, an object of the present invention is to provide a method for notifying caller information when a call is received from an exchange system to an analog subscriber station.

1 is a block diagram illustrating main parts of a subscriber board of an exchange system according to an embodiment of the present invention;

2 is a control flowchart of providing caller information in a subscriber board of a switching system according to the present invention;

3 is a timing diagram for outputting caller information according to an embodiment of the present invention;

4 is a timing diagram for outputting caller information according to another embodiment of the present invention.

The present invention for achieving the above object is a method for providing caller information in a switching system having a frequency output unit for providing caller information to an analog subscriber terminal in a frequency shift key (FSK) method, call connection signal is Receiving and analyzing caller information received together with a call connection signal when received; and controlling the output of a caller's information and a signal for call processing to a called analog subscriber terminal according to the received call connection signal; And checking whether the call is connected to the called party and controlling the connection between the caller and the called party when the call is connected, and checking whether the call is terminated while the link is connected and forming the call when the call is terminated. Releasing all links, and information of the caller to the called analog subscriber terminal; Controlling the output of the call processing signal, performing ring output mode and checking whether a call is connected; and in case of receiving a signal according to call termination from the caller in the ring output mode, all the information formed for the caller's information is provided. Consists of shutting off the line,

The method for outputting the caller information may include transmitting the caller's information in the F-esque manner after a first set time after outputting the first ring signal, and outputting a second ring signal after a second set time after outputting the caller information. It is characterized by consisting of steps.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating main parts of a subscriber board of an exchange system according to an exemplary embodiment of the present invention. FIG. 1 is a subscriber board connected to subscribers, and a trunk board, a signal processing board, a maintenance management board, a switch board, and the like connected to another switching system are not shown. The control unit 11 controls the overall operation of the subscriber board, and in particular, performs a control for transmitting the caller information to the analog subscriber in accordance with the present invention. The link control unit 11 controls the subscriber connection unit 22 according to the control message received from the control unit 11 to connect or disconnect the link with the analog subscriber. In addition, the link control unit 12 controls the frequency output unit 21 when the caller information transmission data is received from the control unit 12 and transmits a phone number corresponding to the caller's phone number. The signal output from the frequency output unit 21 is converted into information such as letters or numbers by using an f-esque method and output. At this time, for example, the output message may include a phone number, a date, a time, and a user's name. And the data for determining the transmission method is input in advance of the service during the manufacture of the system or through the operator command input from the operator computer. Detailed description of the signal output according to this will be described in detail with reference to FIGS. 3 and 4 described later.

The maintenance unit 13 performs control according to the maintenance and management of the subscriber board. The input / output controller 14 analyzes the data input through the time switch 16 to input only the message to be input to the subscriber board to the bus 15, and the time switch by the connection data received from the controller 11. Control 16 to connect through the subscriber connection (22). In the following description, the subscriber connection unit 22 and the frequency output unit 21 are collectively referred to as a subscriber unit 20. In addition, the time switch 16 is connected to a switch board and serves as a transmission / reception path for data output to each board from a call received from another switching system or a local switching system. The control unit 11, the link control unit 12, the maintenance unit 13, and the input / output control unit 14 transmit and receive data via a bus 15.

2 is a control flowchart of providing caller information in a subscriber board of a switching system according to the present invention. Hereinafter, a method of providing information of a subscriber board according to the present invention will be described in detail with reference to FIGS. 1 and 2.

The controller 11 operates in the standby mode in step 100. In this case, the standby mode refers to checking whether an event such as an incoming call and an outgoing call occurs. In addition, in the following flowchart, it demonstrates in the state which excluded the originating signal. The control unit 11 checks in step 102 whether a call connection request signal is received through the bus 15. In the following description, the call connection request signal refers to a signal for requesting connection of a call with a subscriber connected to the subscriber unit 20 through another switching system or transmission system. The call connection request signal is determined by the main control unit provided in the switch board of the switching system and input through the time switch 16. The signal input to the time switch 16 is inputted from the input / output control unit 14 to the subscriber board. If the signal to be processed is input to the bus (15). The call connection request signal is received by the controller 11 through this path. When the call connection request signal is received, the controller 11 proceeds to step 104 and receives information on the caller received together with the call connection request signal. However, if the call connection request signal is not received, the process proceeds to step 100. The controller 11 proceeds to step 106 and analyzes the information received in step 104. Here, the analysis of information refers to checking the line number of the subscriber to be connected and the like, and confirming the caller information. When the information is analyzed through this process, the controller 11 outputs an information call processing signal to the link controller 12 through the bus 15. In the following description, the information call processing signal refers to a process in which the link control unit 12 controls the frequency output unit 21 to output caller information through an F-esque method. As described above, a method of outputting information of the F-esque method will be described with reference to FIGS. 3 to 4.

3 is a timing diagram for outputting caller information according to an embodiment of the present invention. First, the link control unit 12 controls the subscriber connection unit 22 to output an Alert signal to the subscriber telephone. In addition, the subscriber connection unit 22 is controlled to output a first ring signal. Here, the first ring signal refers to the first ring signal output from the switching system to the subscriber station. After waiting for the time of T1, the sender information is output in the F-esque manner. After waiting for the time T2 again, the second ring signal is output. Here, the time of T1 and the time of T2 may be set as in Equation 1 below.

4 is a timing diagram for outputting caller information according to another embodiment of the present invention. Hereinafter, a process of outputting caller information according to the present invention will be described in detail with reference to FIG. 4. First, the link control unit 12 controls the subscriber connection unit 22 to transmit an Allat signal of 2130 Hz and a Dual Tone signal of 2750 Hz. After waiting for the time of T1, the caller information is output in the F-esque manner. After waiting the time of T2 again, the first ring signal is output. In this case, the time of T1 and the time of T2 may be set as in Equation 2 below.

Alternatively, in order to transmit the F-esque signal, a ring pulse, which is an Alert signal, is output to an analog subscriber telephone and then waits for a time of T1. The sender's information is transmitted in the F-esque manner, and the first ring signal is output after waiting for the time of T2. When the ring pulse is output as described above, the time of T1 and the time of T2 may be set as in Equation 3 below.

In addition, the format of the caller data output in the f-esque method is used in a preset method. The control unit 11 controls the link control unit 12 to output the information call processing signal by the method illustrated in FIG. 3 or 4, and then proceeds to step 110. The controller 11 checks whether a connection signal is received from the link controller 12 via the bus 15. At this time, the process of receiving the signal according to the call connection to the link control unit 12, the subscriber connection unit 22 checks whether the telephone of the subscriber that outputs the ring signal is hooked off, if the hook off is detected, the link control unit ( 12). Therefore, the link control unit 12 may check whether the call of the subscriber is connected. When the call is connected with the subscriber, the link control unit 12 informs the control unit 11 that the call is connected.

If the connection signal is not received in step 110, the controller 12 proceeds to step 120 to perform a ring output mode. In this case, the ring output mode refers to controlling the subscriber connection unit 22 to continuously output the ring signal. The control unit 11 performs a ring output mode, and proceeds to step 122 to check whether the caller's call is terminated. The call termination check of the caller is checked by the input / output control unit 14 receiving the call termination signal of the caller through the time switch 16 and inputting the control unit 11 through the bus 15. When the caller's call is terminated, the controller 11 stops all operations for call connection such as output of a ring signal, and then proceeds to step (100), and when the caller's call does not end, proceeds to step (110). do. When the connection signal is received to the controller 11 in step 110, the controller 11 proceeds to step 112. The control unit 11 outputs a connection control signal to the input / output control unit 14 via the bus 15. Here, the connection control signal refers to connecting the time switch 16 with the subscriber connection unit 22 to form a call link between the caller and the called party. The input / output control unit 14 then connects the caller's link with the line of the subscriber connection unit 22 to form a call. When the call is connected, the control unit 11 proceeds to step 114 to perform a call connection mode, and proceeds to step 116 to receive a call termination signal from the link control unit 12 or from the input / output control unit 14. Check if it is received. When the call termination signal is received, the control unit 11 blocks all lines connected between the called party and the calling party, and then proceeds to step 100. However, if the call termination signal is not received, step 114 continues.

As described above, there is an advantage in that the information of the caller can be provided to the analog subscriber telephone using the F-esque signal.

Claims (4)

A caller information providing method in a switching system having a frequency output unit for providing caller information to an analog subscriber terminal in an F-esque method, Receiving and analyzing caller information received with the call connection signal when a call connection signal is received; Controlling an output of a signal for call processing and a caller's information to a called party's analog subscriber terminal according to the received call connection signal; Checking whether the call is connected to the called party and controlling the connection between the caller and the called party when the call is connected; Checking whether the call is terminated while the link is connected, and when the call is terminated, releasing all the links formed when the call is connected. The method of claim 1, Controlling the output of the caller's information and the call processing signal to the called party's analog subscriber station, performing a ring output mode and checking whether the call is connected; And blocking all lines formed for providing the information of the caller when a signal according to the call termination is received from the caller in the ring output mode. The method according to claim 1 or 2, wherein the method for outputting caller information to the called party analog subscriber terminal comprises: Transmitting a caller's information by the F-esque method after a first set time after outputting a first ring signal; And outputting a second ring signal after a second set time after outputting the caller information. The method according to claim 1 or 2, wherein the method for outputting caller information to the called party analog subscriber terminal comprises: Outputting the caller information after the first set time after outputting the alat signal to the called terminal; And outputting a first ring signal after a second set time after outputting the caller information.