KR20010001043A - System for verifying caller number and, method thereof - Google Patents

Abstract

PURPOSE: A system for identifying originating telephone numbers is provided to make a user selectively cut off or connect a speech call with a telephone using a specific telephone number which is previously set up with a call limit or a call permission, and to make the user identify an originating call with a liquid crystal display(LCD), so that the user can selectively cut off or connect speech calls with telephones using required or unwanted telephone numbers. CONSTITUTION: A pre-switch(21) located between a hook switch(1) of a wire telephone(TP) and a public switched telephone network(PSTN) selectively cuts off or connects ringing calls or speech calls. A ringing signal detector/generator(22) detects or generates the ringing signals received through the PSTN, and outputs the ringing signals. When the ringing signals are detected, a hook switch(SW3)(20) firstly sets up the speech calls. An originating telephone request receiver(23) requests or receives originating telephone numbers through the hook switch(20) or the PSTN. A voice message output circuit(24) outputs a voice message for requesting and announcing input processes relating to the originating telephone numbers. A displayer(26) displays the received originating telephone numbers. A micro computer(25) compares the originating telephone numbers with call restricted speech calls or call permitted speech calls which is set up by a user, and controls operations of the pre-switch(21), to selectively cut off or connect the firstly-set speech calls. A memory(28) stores data necessary for control operations of the micro computer(25). A key input circuit(27) selectively inputs call restricted telephone numbers or call permitted telephone numbers, and an operation mode such as a user call selection.

Description

Outgoing phone number verification system and call handling method {System for verifying caller number and, method}

The present invention relates to an outgoing telephone number verification system and a method for processing a call according to the present invention. More particularly, when a ringing signal received from a communication network is detected, an outgoing telephone number is requested and received, and a specific telephone number is used. The present invention relates to an outgoing telephone number verification system for selectively blocking or connecting a telephone call with a telephone, and a call processing method accordingly.

The telephone is the most common communication means capable of easily transmitting and receiving a user's voice through a communication network such as a public telephone network or a mobile telephone network. For the construction and operation of a typical landline telephone, FIG. 1 and FIG. Detailed description with reference to the following.

First, FIG. 1 illustrates a general public switched telephone network (PSTN) comprehensively, and illustrates that a plurality of landline telephones (TP) and a plurality of landline telephone exchanges (EX) are interconnected. 2 shows a configuration of a conventional general landline telephone (TP), and selectively connects or transmits a signal transmitted from the landline telephone exchange (EX) according to the on / off of the hook button. A hook switch 1 for blocking; A bell (5) for outputting a ringing tone according to a ringing signal connected and output through the hook switch; A microphone 4 for converting and outputting a user's voice into an electrical signal; A speaker (3) for converting and outputting a call signal received through the hook switch into voice; A transmission and reception separator (2) for separating a signal received and transmitted through the hook switch; Dial key 9 for inputting a telephone number desired by the user; A dual tone modulation frequency (DTMF) generator 6 for outputting a signal corresponding to the telephone number selected by the dial key as a frequency signal; A pulse generator (7) for outputting a signal corresponding to the telephone number selected by the dial key as a pulse signal; And a microcomputer 8 for controlling the operation of the DFM generator 6 or the pulse generator 7 by a selection terminal E / M that selects a dialing method as mechanical (M) or electronic (E). It is configured to include).

Referring to the operation of a general landline telephone configured as described above, in particular, the call signal transmission operation of the landline telephone (TP), first, the microcomputer 8, the selection terminal (E / M) is electronic (E) or mechanical (M). When the selection terminal (E / M) is set to the electronic (E), the microcomputer 8 corresponds to a dial key input by a user, that is, a telephone number. The TFM generator 6 is controlled to operate. Accordingly, the DFM generator 6 generates a frequency signal corresponding to the input telephone number and outputs it to the public telephone network PSTN. As a result of the confirmation, the selection terminal E / M is mechanical (M). If set to, the microcomputer 8 controls the pulse generator 7 to operate in correspondence to the telephone number input by the user. Accordingly, the pulse generator 7 generates a pulse signal corresponding to the input telephone number and outputs it to the public telephone network PSTN.

On the other hand, the call signal reception operation according to the frequency signal or the pulse signal output as described above is as follows.

First, in the landline telephone switch EX shown in FIG. 1, when the frequency signal or the pulse signal arrives, a call connection request telephone number is detected from the signal, and the corresponding landline telephone TPn or the landline telephone TPn. In another wired telephone exchange (EXn) connected to the connection and the ringing signal (ringing signal) requesting a call connection to the corresponding wired telephone (TPn) using the phone number. The transmitted incoming call is first transmitted to the hook switch 1, as shown in FIG. 2, wherein the hook switch of the landline telephone TPn is in an on state, that is, in a standby state. When an incoming call is input to the bell 5, an incoming tone indicating that a call signal is received is output, and when the hook switch is in an off state, that is, in a call state, a signal for notifying the incoming call is transmitted to the calling telephone TPn. Is output through the speaker (3).

Accordingly, when the user hears a handset of the corresponding telephone after the incoming tone indicating that the call signal has been received, the hook switch 1 is turned off to connect a call to the calling telephone which requested the call connection. will be.

However, when receiving a call without knowing the telephone number of the caller or the calling telephone as described above, there is a problem that an unwanted call is received, for example, an unnecessary call is received, or an unpleasant prank call is received. .

Therefore, the present invention was created to solve the above problems, and when detecting a ringing signal received from a communication network, establishes a call and requests and receives an outgoing phone number, and receives a received outgoing phone number. This allows the user to selectively block or connect a call to a phone with a specific phone number that the user has previously set to Restrict or Restrict Calls, while the received outgoing phone number can be identified by an indicator, such as a liquid crystal display. In addition, the second object is to provide an outgoing telephone number verification system and a method for handling a call accordingly, which allow a user to selectively receive or block a connected call.

1 is a general view of a general public telephone network (PSTN),

2 shows a configuration of a conventional landline telephone (TP),

Figure 3 shows the configuration of the outgoing telephone number verification system according to the present invention,

4 is a flowchart illustrating a call processing method in an outgoing telephone number verification system according to the present invention;

Figure 5 shows the configuration of another embodiment of an outgoing telephone number verification system according to the present invention.

※ Explanation of code for main part of drawing

1,20 Hook switch 2: Transmitter and receiver

3: speaker 4: microphone

5: Bell 6: DFM generator

7: Pulse generator 8,25: Micom

9: Dial key 21: Pre switch

22: ringing detection / generation unit 23: outgoing telephone number request / receiving unit

24: voice message output unit 26: display unit

27: key input 28: memory

An outgoing telephone number verification system according to the present invention for achieving the above object, the incoming call detection means for detecting an incoming call received from the communication network; An outgoing call number request / reception means for requesting and receiving an outgoing call number by establishing a call call upon detecting the incoming call; And control means for selectively blocking or connecting the opened call according to the received outgoing telephone number.

In addition, the call processing method in the outgoing call number confirmation system according to the present invention, when the incoming call is detected, opening a call call to request and receive the outgoing call number; And two steps of selectively blocking or connecting the opened call according to the received outgoing telephone number.

The outgoing telephone number confirmation system and the call processing method according to the present invention constituted and configured as described above, when a ringing signal received from a communication network such as a public telephone network (PSTN) is detected, a call is opened to establish an outgoing call. Outputs a request signal or voice message for requesting a number, compares an outgoing call number received accordingly with a specific phone number set in advance as a call restriction or call permission number by the user, and establishes the call. While selectively blocking or connecting, the received outgoing telephone number is displayed on an indicator such as a liquid crystal display, so that the user can easily identify the outgoing telephone number.

Hereinafter, exemplary embodiments of an outgoing telephone number verification system and a call processing method according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a diagram illustrating a configuration of an outgoing telephone number verification system according to the present invention, a conventional landline telephone (TP) as described above with reference to FIG. 2 and an outgoing telephone number verification apparatus (VU) according to the present invention. A configuration in which a verify unit) is connected and connected is shown as an embodiment. The outgoing telephone number identification device (VU) is located between the hook switch (1) of the landline telephone (TP) and the public telephone network (PSTN) and is a transposition for selectively blocking or connecting an incoming call and a call. A switch 21; An incoming call detection and generation unit 22 for generating and outputting the incoming call received through the public telephone network; A hook switch (SW3) 20 for first opening a call when detecting the incoming call; An outgoing call number request / receiving unit 23 for requesting and receiving an outgoing call number through the hook switch 20 and a public telephone network; A voice message output unit 24 for outputting a voice message for requesting an input of an outgoing telephone number through the hook switch 20 and a public telephone network; A display unit 26 for displaying the received outgoing telephone number; The microcomputer that controls the on / off operation of the pre-switch 21 to selectively connect or disconnect the firstly established call by comparing the outgoing telephone number with the call restriction or call permission telephone number set by the user. 25; A memory 28 for storing data necessary for the control operation of the microcomputer 25; And a key input unit 27 for selecting and inputting an operation mode such as the call restriction or call permission telephone number and user call selection.

Description of the operation in the outgoing telephone number verification system, in particular, outgoing telephone number verification apparatus (VU) configured as described above, in particular, the operation description of the embodiment in which the user sets a specific telephone number to the call restriction phone number, FIG. As shown in the operation flowchart shown, first, the memory 28 selects and inputs a dial or an operation mode key provided in the key input unit 27, and sets at least one specific telephone number set as a call restriction. If the current operation mode is stored in the above and the current operation mode is set to the call restriction mode for blocking a call with a telephone using a specific telephone number stored in the memory (S10), the microcomputer 25, Turn off (S11) the pre-switch 21 provided between the hook switch 1 of the TP and the public telephone network PSTN, and the ringing signal received through the public telephone network is connected to the landline telephone. (TP) By not being input to the bell 5, even if an incoming call requesting a call connection is received, the incoming call is not output from the landline telephone TP.

Subsequently, when the incoming call is received and detected by the incoming call detection unit 22 (S12), the microcomputer 25 turns off the hook switch 20 (S13) to open a call primarily. After operation, the caller requesting / receiving unit 23 is operated to transmit a request signal for requesting the caller's number to the caller's telephone (TPn) requesting a call connection through the hook switch 20 and the public telephone network. (S14), when the outgoing telephone number verification apparatus VU according to the present invention is provided in the outgoing telephone telephone TPn, in the outgoing telephone telephone TPn, a response signal corresponding to the request signal and itself The telephone number of, i.e., the calling telephone number is transmitted.

Accordingly, when the response signal and the outgoing telephone number are received and detected by the outgoing telephone number request / receiving unit 23 (S15), the microcomputer 25 sets a specific telephone set as the call limit telephone number in the memory 28. The number is read out, and it is determined whether or not it matches the received outgoing telephone number (S18).

On the other hand, when the calling telephone number TP is not provided with the calling telephone number verification apparatus VU according to the present invention, the calling telephone TP transmits the response signal and the calling telephone number corresponding to the request signal. Since it is impossible to, the outgoing telephone number request / receiving unit 23 cannot receive the response signal and the outgoing telephone number within a predetermined time. Accordingly, the microcomputer 25 operates to control the voice message output unit 24 to output a voice message requesting input of an outgoing phone number (S16). The caller uses the dial key to make the outgoing phone number. Is directly inputted, the frequency signal or pulse signal described above with reference to FIG. 2 is received and detected by the calling telephone number request / receiving unit 23 (S17).

For reference, in order to detect an outgoing telephone number from a frequency signal or a pulse signal transmitted as described above, a conventional DTMF detection or pulse detection function capable of recognizing the signals as a number or a number is used for the outgoing telephone call. It includes in the number request / receive unit 23.

Subsequently, when the outgoing phone number is detected by the outgoing phone number request / receiving unit 23 as described above (S17), it is determined whether or not it matches the specific phone number set as the call restriction phone number (S18). As a result of the determination (S18), when the outgoing telephone number and the specific telephone number set as the call restriction match, a voice message for rejecting the call, for example, a voice message "Now is absent", is output (S19). When the hook switch 20 is turned on, the call call connection is blocked (S22), and when the determination (S18) does not correspond to the outgoing telephone number and the specific telephone number set as the call restriction, the outgoing call is made. The telephone number is displayed on the display unit 26 such as a liquid crystal display (S20), and the incoming call detection / generation unit 22 is operated to control the incoming call while the preswitch 21 is turned on. Output that is output (S21) from the detection / generation section 22 The call is input to the bell 5 of the landline telephone TP, so that a ringing tone indicating that the call has been received is output together with the calling telephone number so that the first established call is connected to the landline telephone TP. Store the received outgoing call number.

On the other hand, when the call is connected, when the user checks the outgoing telephone number displayed on the display unit 26 and selects and inputs a specific key for rejecting the call (S23), as described above, a voice message indicating that the user is absent. Output (S19), and performs the operation of automatically blocking (S22) the connected call call.

Therefore, the user selectively blocks or connects a call call with a telephone using a specific phone number set as a call restriction, and when the call is connected, the outgoing telephone number can be easily identified, and the connected call call is secondary. Will be blocked.

For reference, the outgoing telephone number received from the outgoing telephone number TPn equipped with the outgoing telephone number verification apparatus VU according to the present invention, unlike the frequency signal or the pulse signal, is a data in the form of code that has been previously prescribed. That is, by transmitting the phone number identification information (Call_ID), the transmission error and the amount of data to be transmitted are minimized.

On the other hand, Figure 5 shows the configuration of another embodiment of the outgoing telephone number verification system according to the present invention, the outgoing telephone number verification device (VU) described above with reference to Figure 3 is a wired telephone (TP) inside It shows a configuration that is integrally embedded in the.

The configuration of the landline telephone (TP) with the outgoing telephone number verification unit (VU) is configured to selectively select a signal transmitted from the landline telephone exchange (EX) according to the on / off of the hook button. Hook switch 51 for connecting or disconnecting; A bell (55) for notifying a ring tone that a call is received according to the ringing signal; A microphone 54 for converting and outputting a user's voice into an electrical signal; A speaker (53) for outputting a call signal received through the hook switch as a voice; Transmitting and receiving separator 52 for separating the signal received and transmitted through the hook switch; A key input unit 59 provided with a dial key for inputting a desired telephone number and an operation mode key for setting a call restriction mode; A DTMF generator 56 for outputting a frequency signal corresponding to the telephone number selected by the dial key; A pulse generator (57) for outputting a pulse signal corresponding to the telephone number selected by the dial key; And controlling the operation of the DFM generator 56 or the pulse generator 57 by a selection terminal E / M that selects a dialing method as mechanical (M) or electronic (E). A microcomputer 58 for selectively connecting or blocking a call based on an outgoing telephone number requesting a call connection; A memory (60) for storing a data required for the control operation of the microcomputer and a specific telephone number set as a call restriction; An incoming call detection / generation unit 61 for generating and outputting an incoming call according to the incoming call detection and the control of the microcomputer 58 received through the public telephone network; An outgoing call number request / receiving unit 62 for requesting and receiving an outgoing call number through the public telephone network; A voice message output unit 63 for outputting a voice message for requesting an input of an outgoing telephone number through the public telephone network; It comprises a display unit 64 for displaying the outgoing telephone number, the operation as described above with reference to Figures 3 and 4, that is, when the incoming call received through the public telephone network is detected, the ringing tone is not output Open and receive a call, request and receive the telephone number of the calling telephone requesting the call connection, compare the received calling telephone number with a specific telephone number set for call restriction in the memory 60, and If the telephone number matches the telephone number set in the memory, the established call is blocked, and if the received outgoing telephone number does not match the telephone number set in the memory, the incoming call detection / generation unit 61 The ring tone is output by the incoming call generated and output, and the call number is displayed.

For reference, the call restriction phone number may be replaced with a call permission phone number, and the outgoing call number confirmation system and the call processing method according to the present invention, as described above, a common public telephone network (PSTN) It can be extended to a general wired telephone using, as well as an outgoing dedicated telephone such as a public telephone and a mobile telephone using a mobile communication network.

The outgoing telephone number verification system and the call processing method according to the present invention configured as described above selectively block a call with a telephone using a specific telephone number set by the user in advance for call restriction or call permission. Or by making the outgoing phone number visible through an indicator such as a liquid crystal display, the user can selectively block or connect a call to a telephone with a specific telephone number that the user wants to call or does not want. Of course, the outgoing telephone number can be easily identified, and it is a very useful invention that can properly cope with unnecessary calls and unpleasant mischief calls as well as tracking the origin.

Claims (10)

Incoming call detecting means for detecting an incoming call received from a communication network; An outgoing call number request / reception means for requesting and receiving an outgoing call number by establishing a call call upon detecting the incoming call; And And a control means for selectively connecting or blocking the opened call according to the received outgoing telephone number. The method of claim 1, Voice message output means for outputting a voice message for requesting an input of an outgoing telephone number corresponding to the detected incoming call; And An outgoing call number verification system, characterized in that it further comprises a display means for displaying the incoming outgoing call number. The method of claim 1, The control means, when the received outgoing telephone number matches the call restriction telephone number set by the user, the outgoing telephone number confirmation system, characterized in that for blocking the established call. The method of claim 1, The control means, when the received outgoing telephone number matches the call permission telephone number set by the user, the outgoing telephone number confirmation system, characterized in that for connecting the established call. The method of claim 2, Each of the constituent means is embedded in a conventional telephone or connected to the form of a connection device outgoing telephone number verification system, characterized in that. A step 1 of requesting and receiving an outgoing telephone number by opening a call when detecting an incoming call; And And a step of selectively blocking or connecting the opened call according to the received outgoing call number. The method of claim 6, In the step 1, when the incoming call is detected, a call processing method in the outgoing phone number verification system, comprising requesting and receiving an outgoing phone number using a pre-defined signal. The method of claim 6, In the first step, when the incoming call is detected, an outgoing telephone number verification system, which outputs a voice message for requesting an outgoing telephone number input, receives and detects an outgoing telephone number transmitted by a frequency or pulse signal accordingly. Call handling in. The method of claim 6, The first step, when the incoming call is detected, the call processing method in the outgoing telephone number verification system, characterized in that to establish a call in the state that the incoming call is not output. The method of claim 6, In the second step, when the incoming outgoing telephone number does not match the call restriction telephone number set by the user, the incoming / outgoing call tone and the outgoing telephone number are displayed and stored. Call processing method in the outgoing telephone number verification system, characterized in that possible.