KR20010054753A - A multi fuction telephone - Google Patents

Abstract

PURPOSE: A multifunctional telephone set is provided to offer an ACR(Automatic Call Routing) service to connect overseas and long-distance calls automatically. CONSTITUTION: A memory part(100) stores a program to add an output appointment number to an inputted telephone. A main control part(110), if a program changing intrinsic number is inputted, interrupts signal transmission or executes the control to correct the program data of the memory part(100). An ARS detection part(120) detects the frequency of an ARS voice signal so that a caller can execute processing by a prepaid card or a post payment card according to the control signals of the main control part(110). The DTMF receiving part(130) detects a DTMF signal from the voice signal detected from the ARS detection part(120). The voice switching part(140) receives the DTMF signal detected from the DTMF receiving part(130) and executes switching. A DTMF generation part(150) receives the code data, related to button data by the dialing of the caller, from the main control part(100) and outputs the DTMF signal corresponding to the code data. A routing control part(160) controls the path of a voice signal inputted from a rectification bridge connected to tip/ring terminals.

Description

Multifunctional telephone {A multi fuction telephone}

The present invention relates to a multifunctional telephone, and more particularly, to a multifunctional telephone that automatically dials international and long distance telephones and detects eavesdropping and stores prepaid and postpaid card numbers automatically.

In general, in order to provide successful services for long distance and international telephony business in the rapidly changing telecommunications service market, users must achieve high quality, convenient service and low cost of communication. Should be provided to Conventionally, as shown in FIG. 1, a modem 3, a liquid crystal display 7, a keypad 8, and a card reader 9 are incorporated in a conventional telephone so as to be connected to the control unit 5. FIG. A function key 11a, an arrow key 11b, and an execution key 11c of the key selection unit 11 for mode selection and function execution shown in Fig. 11 are attached to the control unit 5, and the telephone number dial and The numeric calculator 13 for a calculator was attached to the control part 5, and was comprised.

1 and 2 described above in more detail as follows.

In FIG. 1 and FIG. 2, the numbers are treated the same according to the same constituent means. The control unit 5 receives the power from the power supply unit 10 to control the entire telephone, and the DTMF (Dual Tone Multi Frequency) generation unit (4) receives the voice between the called party input to the handset 1 and transmits the DTMF signal to the public telephone network (PSTN) via the path control unit (2). A function button 12 and a numeric operator 13 for performing function execution and telephone number input from the outside, respectively, are connected to the controller 5, and the memory 6 connected to the controller 5 has a numeric operator ( 13 stores a plurality of personal telephone numbers entered through. On the other hand, the modem 3 is connected to the path control unit 2 and the control unit 5, the card reader 9 is connected to the control unit 5 to perform the charging service to process by the card. The keypad 8 reads / writes the card inserted into the card reading unit 9 described above or inputs Korean and English characters to the memory 6.

The liquid crystal display 7 connected to the control unit 5 displays information by characters and pictures, and the key selection unit 11 is composed of a function key, an execution key, and an arrow key to execute mode selection and function. The function button 12 has a function of suspending a telephone call, and the numeric calculator 13 is connected to the control unit 5 to dial a telephone number or perform a calculation function.

However, according to the conventional multifunctional telephone, it is not possible to automatically connect international and long distance telephones that a service provider has to provide to users, or to provide services related to high-quality additional functions such as prepaid and postpaid card processing. There was a problem that could not prevent eavesdropping.

Accordingly, an object of the present invention is to provide an ACR (Automatic Call Routing) service for automatically accessing international and long distance telephones to solve the above problems.

Another object of the present invention is to check the voltage and current state of the voice signal between the called party to prevent eavesdropping.

Another object of the present invention is to perform a billing service of a multifunction telephone related to a call using a prepaid / postpaid card number.

Still another object of the present invention is to perform a flash function without using a hook switch, so that a user can connect and talk to another extension user during a phone call.

1 is a block diagram of a multifunctional telephone according to the prior art,

Figure 2 is an external view showing an embodiment of the multifunction phone shown in Figure 1,

3 is a block diagram of a multifunction telephone of the present invention;

4 is an external view showing an embodiment of the multifunction telephone shown in FIG. 3;

5 is a flowchart of a prepaid / postpaid card service procedure according to one embodiment of the present invention;

6 is a flowchart of a flash service procedure according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: memory unit 110: main control unit

120: ARS detector 130: DTMF receiver

140: voice switching unit 150: DTMF generator

160: path control unit 170: voice processing unit

180: keypad 190: module display

200: speaker amplifier 210: tone ringer

220: hook detection unit 230: hook switch

240: adapter 250: regulator

260: alarm operation unit 270: alarm display unit

A feature of the present invention for achieving the above object is a multifunction telephone, comprising: a memory unit for storing a program for transmitting a predetermined output designation number to a telephone number input to the telephone; A main control unit controlling to block signal transmission or correct program data of the memory unit when a program change unique number is input; An ARS detector for detecting a frequency of an ARS voice signal so that a caller can perform a prepaid or postpaid card according to a control signal of the main controller; A DTMF receiver for detecting a DTMF signal from the voice signal detected by the ARS detector; A voice switching unit configured to receive the DTMF signal detected by the DTMF receiver and to minimize communication interference; A DTMF generator that receives a corresponding code data corresponding to button data from the main control unit when the caller dials and outputs a DTMF signal corresponding to the corresponding code data; Tip, a path control unit for controlling the path of the voice signal introduced from the rectifying bridge connected to the ring terminal; Including a voice processing unit for amplifying the voice signal received through the microphone and the voice signal transmitted from the path control unit according to the mute signal of the main controller, detects the number of each digit of the telephone numbers input from the telephone By adding a designated number, an automatic call line service for changing and transmitting an input telephone number is performed.

In addition, in the present invention, the program change unique number inputted to the main control unit can be transmitted by a ring signal of an external telephone station by the telephone or a communication service provider.

Another feature of the invention, the multi-function phone, hook detection unit for detecting the voltage and current state of the telephone line; An alarm display unit indicating an eavesdropping state according to the voltage and current state detected by the tapping detecting means; An alarm operation unit for transmitting an alarm sound when tapping is detected by the hook detection unit; And a main controller for controlling the hook detection unit, the alarm display unit, and the alarm operation unit by executing a built-in tapping detection program.

According to another aspect of the present invention, in a multifunction telephone, a first step of selecting a prepaid card or a postpaid card by turning off a hook by lifting the handset of the phone and inputting a card number after selecting a prepaid card in the first step And a second step of confirming the card number, a third step of checking the balance of the card after inputting the password of the card and confirming the password if the card number is confirmed in the second step, and the postpay in the first step. After selecting the card, enter the card number and check the card number to check the abnormal state of the card, and after performing the third process and the fourth process, the other party's phone number for receiving a call And a fifth process of inputting a call and a sixth process of charging after calling the counterpart phone number input in the fifth process.

In still another aspect of the present invention, in a multifunctional telephone, a first process of connecting to an extension subscriber while performing a telephone call between an incoming and outgoing caller, and after pressing the flash button of the telephone after performing the first process, is recognized. And a third step of recognizing the flash button in the second step, automatically connecting to the corresponding subscriber to perform a call and completing the call.

Hereinafter, an embodiment of the present invention according to the accompanying drawings will be described in detail.

First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components are shown on different drawings, and the same components are designated with different symbols to facilitate the description.

3 is a block diagram of a multifunctional telephone of the present invention;

4 is an external view showing an embodiment of the multi-function telephone shown in FIG. 3.

The Dual Tone Multi Frequency (DTMF) receiver 130 for automatic call routing (ACR) setting of the present invention that performs a service for automatically accessing international and long distance telephones is adapted to a server characteristic of a communication service provider. It is necessary to shorten the operation time and improve the reliability of the server and the subscribing device by recognizing the progress, closing and ending signals as DTMF signals during various table operations. The DTMF signal of the DTMF receiver 130 detected to detect a number when dialing off the hook of the telephone is switched to a state where communication disturbance is minimized in the voice switching unit 140 according to the control signal of the main controller 110. It is input to the voice processing unit 170.

The frequency of the audio signal output from the ARS detector 120 that detects the frequency of the ARS (automatic answering device) voice signal so that the caller can make a prepaid or postpaid call according to the control signal of the main control unit 110 is the DTMF receiver 130. ) Is entered. The DTMF generation unit 150 receives the corresponding code data corresponding to the button data of the keypad 180 when the caller dials the main control unit 110, generates a DTMF signal corresponding to the corresponding code data, and generates a voice processing unit 170. Output to The oscillator OSC connected to the main controller 110 inputs a clock signal to the DTMF receiver 130 and the DTMF generator 150.

On the other hand, the main control unit 110 is stored in the program for changing the ACR output designated number for changing the international / long-distance telephone number of the target to be a predetermined telephone number in order to control the memory unit 100. The memory unit 100 includes a ROM in which a program for controlling the operation of the ACR is stored, a RAM temporarily storing data for the operation of the main controller 110, and an ACR by a control command of the main controller 110. It consists of an electrically erasable and programmable EEP (EEP) ROM that can erase and rewrite output assignment numbers.

Looking at the programming procedure of the EEPROM of the main control unit 110 and the memory unit 100 for international / long distance telephone call as follows.

Telephone numbers for international and long distance calls are 0XX-XXXX-XXXX and 00X-X-XXXX-XXXX respectively, and local calls start with a number other than zero. If the first digit of the telephone number is not 0, it is recognized as a local telephone and the main control unit 110 turns on the path control unit 160 to turn on the tip and ring of the telephone line connected to the bridge diode BD. ) And the control function of the main control unit 110 is stopped.

On the other hand, if the first number of the telephone number is 0 and the second number is 0, it is recognized as an international telephone number, and the number designated as the second number is designated as the second number of the ACR output designation number.

If the second digit of the ACR output designation number is 1, the function of the ACR is no longer necessary, and the path control unit 160 is turned on as in the local telephone. The dip (DSP) switch DS connected to the main control unit 110 has a function of deleting or adding 0 of the international / long distance telephone number.

The voice processing unit 170 is composed of an RX / TX amplifier. The signal from the microphone MIC is amplified by about 50 dB in the RX / TX amplifier. The signal amplified by the RX / TX amplifier is controlled on / off according to the mute signal transmitted from the main controller 110.

If the mute signal transmitted from the main control unit 110 to the voice processing unit 170 is "high", the DTMF signal is turned off and the microphone (MIC) signal is turned on, and if the mute signal is "low", the DTMF The signal is ON and the MIC signal is OFF. In addition, the voice signal input to the voice processing unit 170 through the path control unit 160 is supplied to the sign language unit R-UNIT and the speaker amplifier 200.

On the other hand, the tone ringer 210 is used as an internal power source by changing the DC pulsation voltage and current by the built-in bridge diode, the AC signal of 20Hz, 120V applied through the tip (TIP), ring (ring) terminal, The oscillation is started using this power source. The signal oscillated by the tone ringer 210 sounds the speaker SP.

The hook detection unit 220, which is a wiretap detection means connected between the main control unit 110 and the bridge diode BD, is connected to the keypad 180 by determining whether the wire is tapped by detecting a voltage and current state of the line, and FIG. 4. Tapping detection is detected through the light emitting diode (LED), which is an alarm display unit 270 shown in the external view. The alarm operation unit 260 notifies the tapping detection state detected by the hook detection unit 220 through an alarm sound. The hook switch 230 transmits a hook switch signal to the main controller 110 to determine an ON / OFF state of the handset HS of the telephone illustrated in FIG. 4. At this time, the power supply of 5V and VCC applied to each of the constituent means is through an AC power supply (AC PWR) applied to the 12V adapter 240 connected to the 5V regulator 250 to which the power supply of the 5V and VCC is output. You can get it.

In addition to the functions described above, the functions illustrated in the external view of FIG. 4 will be described below.

The redial button RD remembers the phone number that the caller had previously called and then calls the same phone number again.

If you use the speed dial button (SD), you can enter up to 10 phone numbers. The maximum number of digits is 16 digits.

How to use the speed dial function is as follows.

When the phone number is stored, a number to be input is input after pressing the memory button SM, which is displayed on the module display unit 190 and the display module DM shown in FIGS. 3 and 4, respectively. The module display unit 190 and the display module DM are the same means, and consist of 16 digit x 2 LCDs.

As described above, when the number to be inputted is input, after pressing the storage key SK to select a place to store from 0-9 of the number plate NP and pressing the memory button SM again to store the selected storage number. On the other hand, when transmitting the stored number by the memory button (SM), press the speed dial button (SD) and input the stored number (0-9) in which the number to be called is stored, which is the display module DM. Displayed on the screen. When the storage number is entered, press the speed dial button (SD) to send out the number.

On-hook function using the on-hook button (OH) is a function of making a phone call without lifting the handset (HS), when the other party is making a call by holding the handset (HS).

In addition to the functions described above, the display module DM can be used as a calculator for 10 digits during a call and can also be used as a watch.

5 is a flowchart of a prepaid / postpaid card service procedure according to an embodiment of the present invention.

The hook is turned off by the handset HS shown in FIG. 4 (S1), and the prepaid card button CA and the postpaid card button CB are selected and pressed (S2). If the prepaid card button CA is selected and pressed after performing steps S1 to S2, the card number is entered (S3) and the entered card number is checked (S4). If the card number is confirmed in step S4, enter the password (S5) and confirm this password (S6), and then check the cash balance of the card (S7).

On the other hand, if the deferred card button (CB) is selected and pressed in step S2, enter the card number (S8), and check the input card number (S9). If the card number is confirmed in step S9 check the abnormal state of the card (S10). In step S7 and step S10, if there is no problem with the balance of the card or the creditworthiness of the card, the call is approved (S11) and the phone number of the other party for the call is input (S12). If the other party's phone number is input in step S12, after the charging process is performed (S14), the call ends.

As described above, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

In the rapidly changing telecommunications market environment, there are advantages of successful long-distance telephone business and providing high quality services to existing international telephone customers, thereby preventing users from receiving eavesdropping, which is a high quality and convenient service.

Claims (5)

In the multifunction phone, A memory unit for storing a program for transmitting a predetermined output designation number to a telephone number input to the telephone; A main control unit which blocks a signal transmission when a program change unique number is input or controls to correct program data of the memory unit; An ARS detector for detecting a frequency of an ARS voice signal so that a caller can perform a prepaid or postpaid card according to a control signal of the main controller; A DTMF receiver for detecting a DTMF signal from the voice signal detected by the ARS detector; A voice switching unit configured to receive the DTMF signal detected by the DTMF receiver and to minimize communication interference; A DTMF generator that receives a corresponding code data corresponding to button data from the main control unit when the caller dials and outputs a DTMF signal corresponding to the corresponding code data; Tip, a path control unit for controlling the path of the voice signal introduced from the rectifying bridge connected to the ring terminal; Including a voice processing unit for amplifying the voice signal received through the microphone and the voice signal transmitted from the path control unit according to the mute signal of the main controller, detects the number of each digit of the telephone number input from the telephone A multifunction telephone, characterized in that to perform an automatic call line service for changing and inputting an input telephone number by adding a designated number. The multifunction telephone according to claim 1, wherein the program change unique number inputted to the main control unit can be transmitted by each ring signal of an external telephone station by its own telephone and a communication service provider. In the multifunction phone, Hook detection unit for detecting the voltage and current state of the telephone line; An alarm display unit indicating an eavesdropping state according to the voltage and current state detected by the tapping detecting means; An alarm operation unit for transmitting an alarm sound when tapping is detected by the hook detection unit; And a main control unit controlling the hook detection unit, the alarm display unit, and the alarm operation unit by performing a built-in tapping detection program. In the multifunction phone, A first step of picking up a prepaid card or a postpaid card by lifting a hook of the telephone handset; A second step of inputting a card number and confirming the card number after selecting a prepaid card in the first step; If the card number is confirmed in the second step, a third step of checking the balance of the card after inputting the password of the card and confirming the password; A fourth step of checking an abnormal state of the card by inputting a card number and checking the card number after selecting a postpaid card in the first step; A fifth process of inputting a counterpart phone number for receiving a call after performing the third process and the fourth process; And a sixth process of billing after calling the counterpart phone number input in the fifth process. In the multifunction phone, A first process of connecting to an extension subscriber while performing a telephone call between a called party and a caller; A second step of recognizing the flash button of the phone after performing the first step; And a third process of automatically connecting to the corresponding subscriber and performing a call and completing the call when the flash button is recognized in the second process.