KR20090061784A - Method for communicating emergency call in mobile terminal - Google Patents

Abstract

An emergency call connection method of portable terminal transmitting audio signal in a preset contact point is provided to perform a secured emergency call sending function and transmit the audio signal to a predetermined call number by performing a secured emergency call sending function. If a registered secured emergency phone number is inputted(411), a display function is switched off with a portable terminal. The portable terminal forms a phone number of a registered contact point(413). The portable terminal transmits the audio signal received through a microphone through a formed call path(415). If the registered secured emergency call cancellation number is inputted, the portable terminal terminates the security emergency conversation service.

Description

Emergency call method for mobile device {METHOD FOR COMMUNICATING EMERGENCY CALL IN MOBILE TERMINAL}

The present invention relates to a communication method of a mobile terminal, and more particularly, to an emergency call processing method in an emergency state.

Currently, when a terminal user encounters an emergency situation, the portable terminal may notify the police station, a predetermined subscriber, or an emergency rescue center by making an emergency or emergency call. The emergency state as described above can be classified into two states. One may be in a state where the state can be publicly announced to the outside, and the other may be in a state where the state cannot be publicly announced. For example, the former may be lost or injured during a hike to request an emergency rescue, or when a user faces an emergency due to a disaster. The latter state may be a case where a user is kidnapped by a gangster and becomes a crime target.

When faced with such an emergency state, the user can notify his or her emergency situation by calling an emergency call in the former state. However, in the latter case, the user may feel a life risk if he publicly announces his location. Therefore, in the latter state, it is preferable to make an emergency call in a state where the mobile terminal does not display a call attempt.

Therefore, the embodiment of the present invention allows the user of the mobile terminal to efficiently perform emergency calls according to the situation. To this end, the mobile terminal has a general and security emergency mode, and when an emergency call is requested in an emergency mode, the mobile terminal can form an only transmission path without indicating the operation state of the mobile terminal to notify the emergency state.

The method of call service of a mobile terminal according to an embodiment of the present invention includes turning off the display function of the mobile terminal when a registered security emergency number is input and forming an outgoing call route at a registered contact telephone number, and a microphone. Transmitting an audio signal received through the formed call path to perform a secure emergency call function; upon entering a registered secure emergency call release number, turning on the display function of the mobile terminal and terminating the secure emergency call service; Characterized in that the process is made.

In addition, the call service method of the mobile terminal according to an embodiment of the present invention, the security emergency telephone number and release number entered during the secure emergency telephone registration mode, the contact and main contact telephone numbers for reporting the emergency status, and the Registering a message for informing an emergency, turning off the display function of the mobile terminal upon inputting the registered security emergency telephone number, transmitting the message to registered contact telephone numbers, and then subscribing to the primary contact telephone number. Forming an outgoing call path, transmitting an audio signal received through a microphone through the formed call path, performing a secure emergency call function, and entering a registered secure emergency call release number of the mobile terminal. The process consists of turning on the display function and terminating the secure emergency call service. It characterized by the security constituted by any emergency call service process.

As described above, when the user of the mobile terminal becomes a crime target such as kidnapping, a security emergency call function may be performed so that a criminal may not know. In the state where the security emergency call function is performed, an audio signal received by the mobile terminal can be transmitted to a preset contact while the criminal does not recognize the call function, and the user can inform the police and family of the current situation and location of the user. Can be. In addition, the mobile terminal in the state of performing the security emergency call service analyzes the state of the battery to drive the camera when maintaining a normal voltage, and transmits the image obtained from the camera with the received audio and the user of the portable terminal user The location can be easily tracked.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that the same components in the figures represent the same numerals wherever possible.

In the embodiment of the present invention, the term "emergency telephone" is a term used to mean a telephone that is executed in an emergency or dangerous situation. The term "security emergency telephone" refers to a telephone which executes a communication function using only some functions without displaying the operating state of the portable terminal in a dangerous situation such as hijacking. "Emergency emergency telephone" refers to a telephone that executes a communication function using the full functions of a mobile terminal as a call for informing an emergency in a state where security is not required (that is, an emergency but no security). The term " display function off " means to turn off the display unit operation and the speaker operation of the portable terminal. "Contact Phone Number" means a subscriber's telephone number that transmits a message registered in advance by a mobile terminal user in a secure emergency call. "Primary contact telephone number" means a telephone number that forms a communication path with a mobile terminal in a secure emergency call.

1 is a diagram showing the configuration of a portable terminal for executing an emergency call according to an embodiment of the present invention.

Referring to FIG. 1, the RF communication unit 130 performs a wireless communication function of the portable terminal. The RF communication unit 130 includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal. The key input unit 140 includes keys for inputting numeric and character information and function keys for setting various functions. The display unit 150 performs a function of displaying the operation of the mobile terminal and the messages transmitted and received. The display unit 150 includes various LEDs and lamps attached to the LCD and the portable terminal. In the embodiment of the present invention, the display unit 150 does not operate under the control of 110 during a security emergency call.

The camera unit 160 includes a lens and an image sensor, and acquires an image of the surrounding environment. The image processor 170 processes the image acquired by the camera unit 160. The image processor 170 may include a scaler for scaling an image to a screen size of the display unit 150, a color converter for converting the image to a color of the display unit 150, and a coder for encoding and decoding the image processed image. and Decoder).

The controller 110 controls the overall operation of the mobile terminal and the performance of the emergency call function according to the embodiment of the present invention. The controller 110 may include a codec including a coder for encoding the transmitted signal and a decoder for decoding the received coded signal, a modulator for modulating the coded signal and transmitting the modulated signal to the RF communication unit 120. And a data processor including a modem configured to demodulate and output the demodulated signal output to 120 to the decoder. The data processing unit may be configured of a modem and a codec. The data processing unit may be separately included in the control unit 110 and may be located between the RF communication unit 130 and the control unit 110. In addition, the control unit 100 may further include a voice processing unit for recording the received voice to generate a voice mail.

The memory 120 may be composed of a program memory and a data memory. The program memory stores an operation program of the mobile phone and programs for executing an outgoing call by performing an emergency call function according to an embodiment of the present invention. The data memory stores data generated during the execution of the program. In addition, the data memory may store secure voice mail and / or text mail for notifying of an emergency condition, and may store at least one emergency phone number for notifying the emergency status to the outside.

The portable terminal of the present invention having the configuration described above registers phone numbers to be called in an emergency state and a message for informing an emergency state in a registration mode, and if a corresponding phone number is input in an emergency state, the mobile terminal corresponds to a phone number. Perform the outgoing call function in the emergency state.

In an embodiment of the present invention, the mobile terminal further includes a mode for registering emergency call information in a registration mode, and in the emergency call registration mode, security emergency call information and general emergency call information may be registered. Here, the security emergency call information may store an emergency phone number and a message for transmitting together with the security emergency call. In this case, the security emergency state may be a case where the user of the portable terminal is in a dangerous state such as abduction or detention, and in this case, it is preferable to allow the user to secretly use the portable terminal. In general, the mobile terminal is currently composed of a folder type (folder type), slider type (slider type), bar type (bar type) and the like. In this case, the folder type and the slider type have a structure in which the keypad cannot be used in the off state (folder closed or slide off). Therefore, the security emergency phone number is preferably using a shortcut key, the shortcut key can be used even in the off state (eg, volume up-down key or a multimedia execution key installed outside of the mobile terminal (eg, a camera driving key, multimedia). Play keys, multimedia control keys, etc. The external keys of the portable terminal may be pressed in an undesired state so that the shortcut key of the security emergency phone number is composed of two or more key combinations. Preferably, the two keys can be used by pressing at the same time, it is also preferably configured to be used by pressing two keys in sequence.

At this time, if the user selects the emergency call registration mode, the control unit 110 guides the input of a shortcut key for registering a secure emergency phone number on the display unit 150, and when the user inputs a key through the key input unit 140, the control unit 110 It will prompt you to enter contact telephone numbers for saving and alerting you of an emergency. Thereafter, when the user inputs contact phone numbers through the key input unit 140, the controller 110 stores the information and guides the input of a message to be transmitted in a security emergency state. In this case, the message may be a text message and / or a voice message. When the message is received, the controller 110 stores the message in the memory 120 and terminates the registration of the security emergency phone information.

When the outgoing call of the security emergency call is requested in the state of registering the security emergency call information as described above, the controller 110 detects this by the shortcut key information stored in the memory 120, turns off the reception path of the mobile terminal, and transmits only the transmission path. On, the display operation of the mobile terminal is stopped. In this case, the transmission path of the portable terminal may be a microphone, a coder, a modulator, an RF transmitter, or the like, and the reception path may be an RF receiver, a demodulator, a decoder, a speaker, or the like. In addition, the display operation may be a key sound generated through the LCD, various lamps, and the speaker constituting the display unit 150. This is to ensure that the hijacker and the like do not know the use of the mobile terminal during a secure emergency call.

In addition, when the outgoing call is attempted by the security emergency telephone, the controller 110 may have the same effect even if the transmission path and the reception path are turned on and only the display function is turned off. That is, the portable terminal may perform a normal outgoing call service in a security emergency state, and may turn off the operation of the display unit 150 and the speaker so as not to display the operating state of the portable terminal. In this case, the controller 110 may perform the outgoing call function by disguising the sound and the visual display function of displaying the operation of the portable terminal as if the portable terminal does not operate.

Here, the display function includes a display function such as an LCD and a lamp of the display unit 150 and a display function of a speaker. In the embodiment of the present invention, the meaning of the display function off in the security emergency call function blocks the display operation of the display unit 150 and the audible sound that can be reproduced by the speaker generated during an outgoing call when the security emergency call is made. It means a function to block incoming calls from subscribers registered as contacts of security emergency phone. The display function is turned off for a secure emergency call. When a normal outgoing call is required in the secure emergency call state or when the terminal is turned on (by pressing a specific key or turning on a folder and a slider), the corresponding function is turned off. The display function of the security emergency call is maintained normally. In addition, the operation of turning off the display function of the security emergency telephone is released at the time when the security emergency telephone is released.

When the transmission function by the security emergency call is performed as described above, since the portable terminal has turned on the transmission path, voice and sound generated around the portable terminal can be transmitted to the emergency contact to which the portable terminal is connected. Has the effect.

2 is a flowchart illustrating an emergency call service procedure of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 2, the mobile terminal has a mode for registering emergency call information. Therefore, when the user selects the registration mode through the key input unit 140, the controller 110 detects this in step 211 and displays the registration menu on the display unit 140 in step 213. At this time, the registration menu includes a registration menu of emergency phone information. At this time, if the user selects the emergency call information registration menu through the key input unit 140, the control unit 110 detects this in step 215 and displays the emergency phone number registration menu in step 217, and the emergency phone number and contact information input according to the user's selection Register phone numbers, messages, and more. Operation 217 of registering the emergency call information will be described in detail with reference to FIG. 3.

When the user inputs an emergency phone number in the mobile terminal in which emergency phone information is registered as described above, the controller 110 performs an outgoing call service of an emergency phone according to an embodiment of the present invention. Therefore, when the user requests an outgoing call, the control unit 110 detects this in step 221 and checks in step 223 whether an outgoing call request is made by the emergency telephone number. In this case, if an emergency call is requested by the emergency call, the controller 110 performs an outgoing call service in a state in which the display function is turned off in step 225. The outgoing call service by the emergency call will be described in detail with reference to FIGS. 4 to 6.

3 is a flowchart illustrating a procedure of registering emergency telephone information in a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 3, when the registration function of emergency phone information is selected, the controller 110 displays an emergency phone registration menu on the display unit 150 in step 311. Here, the emergency call registration menu may consist of registration menus of security emergency call and general emergency call information. In this case, the security emergency call is a function of secretly serving an outgoing call in a state where a user is at risk. In this case, the portable terminal preferably does not display an operation procedure of the outgoing call service as described above. In addition, the general emergency phone calls outgoing calls in a situation in which the display function is normally operated in an emergency situation in which the user needs to ask for help from a third party (when injured, lost in climbing, unable to move due to bad weather, etc.). It is a function to service.

When the user selects the secure emergency call information registration menu through the key input unit 140, the control unit 110 detects this in step 313, and displays a window for guiding input of the secure emergency phone number and the secure emergency call release number in step 315. do. At this time, the security emergency phone number is preferably set to keys that can be secretly sent in an emergency. As described above, the portable terminal has a structure of a folder type, a slider type, and a bar type, and the folder type and the slider type perform a communication function by opening a folder or turning on a slider of the portable terminal. However, in the situation where the security emergency call is to be made, it may not be possible to perform the operation of opening the folder or turning on the slider as described above. Therefore, it may be desirable to register an emergency phone number using keys located outside of the mobile terminal so that a user can secretly make a secure emergency call. At this time, the keys located outside the portable terminal may be pressed by an incorrect operation. Therefore, the security emergency telephone number is preferably operated at least two keys simultaneously or sequentially to ensure the stability of key input. When the user inputs the security emergency phone number in the state where the input of the security emergency phone number is displayed in step 315, the controller 110 detects it and stores the input security emergency phone number in the memory 120 in step 317.

In addition, the security emergency call should be able to be carried out in a different form from the normal call recovery procedure. That is, a folder type or slider type portable terminal stops the call service when the folder is closed or the slider is turned off. However, the call service must be maintained even if the folder or the slider is off in the call service state by the security emergency call. In addition, the call service should not be terminated by the call termination switch while the security emergency call service is being performed. Therefore, in the embodiment of the present invention, in the process of registering the security emergency phone number to enter the number to release the security emergency phone. At this time, the security emergency telephone release number is preferably a method using a numeric key of the portable terminal, it is preferable to constitute a combination of two or more numeric keys. Therefore, the user registers the security emergency telephone number, and then registers the security emergency telephone release number according to the numeric key combination.

After storing the security emergency phone number, the control unit 110 controls the display unit 150 in step 319 to display an input guide of receiving telephone numbers (that is, contacts) to receive the emergency call. In this case, at least one receiving side phone number may be input. When the telephone number is input through the key input unit 140, the controller 110 detects the received phone number in step 321 and stores the received telephone number (ie, contact telephone number) in the memory 120. At this time, one of the contact phone numbers should be able to form a communication path during a secure emergency telephone call. Therefore, the control unit 110 may guide to register one telephone number among the input telephone numbers as the primary telephone number, and register the corresponding telephone number as the primary contact telephone number according to the user's selection. In addition, the controller 110 may register the first phone number input from the input contact phone number as the main contact phone number. The main contact telephone number is preferably set to "112" or "119".

After registering the contact phone numbers of the emergency telephone, the control unit 110 controls the display unit 150 in step 323 to guide the input of a message indicating that the user is in danger. In this case, the message may be a text message and / or a voice message. In this case, the text message may be generated using text data input through the key input unit 140, and the voice message may be generated by converting a voice signal received from a microphone into voice data. The controller 110 registers the text and / or voice message generated in step 325 as an emergency notification message in the memory 120.

As described above, the secure emergency call information registration menu may register secure emergency phone numbers, contact phone numbers, and emergency notification messages. In FIG. 3, the procedure for registering the security emergency phone information is described in the order of emergency telephone call registration, registration of contact phone numbers, and emergency notification message registration. However, the registration order may be registered with the same information even if the registration order is changed.

In addition, if the security emergency call information is not registered in step 313, the control unit 110 detects this in step 313 and performs general steps 331 to 337 while registering general emergency call information. Looking at the registration process of the general emergency phone information, the control unit 110 guides the input of the general emergency phone number in steps 331 to 333 and stores the input phone number as a general emergency phone number, and in step 335-337 It guides the input of the phone number and stores the input phone number as contact phone numbers. At this time, it is preferable to set the emergency number. In addition, when registering the general emergency telephone information, it can be designed to store text and / or voice messages, such as the security emergency telephone information, in this case it is preferable to create a different form than the security emergency telephone information.

When the emergency call information is registered while performing the procedure as shown in FIG. 3, the portable terminal performs the outgoing emergency call service according to the embodiment of the present invention at the request of the user.

4 is a flowchart illustrating a procedure of performing an outgoing emergency call service according to an embodiment of the present invention.

Referring to FIG. 4, the user inputs a preset security emergency phone number in a dangerous situation where a personal threat is felt. Here, the security emergency phone number may be keys (volume up-down key, multimedia execution key, etc.) located outside the portable terminal as described above, and may also be a combination of two or more keys. At this time, the user may request the outgoing security emergency call by simultaneously pressing or sequentially pressing the keys of the set security emergency phone number. The control unit 110 detects this in step 411 and in step 413 turns off all display functions of the mobile terminal and turns on the transmission path of the mobile terminal to form a path for an outgoing call. In step 415, the controller 110 dials the contact phone numbers stored in the memory 120 to form a communication path, and then transmits emergency notification messages stored in the memory 120. That is, the controller 110 transmits text and / or voice messages registered in the registration process to subscribers of contact phone numbers registered in the registration process when a security emergency call is requested.

Thereafter, the controller 110 dials the main contact phone number set in step 417 to form a communication path, and then turns on the microphone to activate the transmission path of the mobile terminal. At this time, the control unit 110 controls not to display an operation of the user making an outgoing call by turning off all display functions of the display unit 150 and display functions of the speaker. Thereafter, the controller 110 processes the audio signal around the portable terminal received through the microphone in step 419 and transmits it through the RF communication unit 130. The above state is repeated until the user of the mobile terminal requests the release of the security emergency call.

At this time, the security emergency call is preferably released by the user requesting a security emergency call. Therefore, in the embodiment of the present invention, when registering the security emergency telephone number as described above also registers the number to release it. After the dangerous situation is released and the user inputs the release number of the security emergency call, the control unit 110 detects this in step 421 and releases the security emergency call service.

In addition, if a general emergency telephone call is requested, the control unit 110 detects this in step 411, turns on the display function in step 431, forms a normal outgoing call path, and performs the outgoing call service in step 433. In the state of performing the call service, the termination function may proceed in the same manner as a general call service.

In an exemplary embodiment of the present invention, the camera unit 160 may be turned on while the security emergency telephone call is performed to transmit an image of a surrounding. That is, in the case of a portable terminal having a camera, the portable terminal may automatically turn on the camera to transmit audio and images of the surroundings in a security emergency state. FIG. 5 is a diagram illustrating a procedure of transmitting an image together with audio by driving a camera while performing a security emergency call service according to an embodiment of the present invention in step 419 of FIG. 4. In the embodiment of the present invention, a description will be given on the assumption that the portable terminal has a function of sensing peripheral illumination.

Referring to FIG. 5, the control unit 110 transmits the audio received through the microphone through the RF communication unit 130 in step 511, and checks the remaining battery capacity in step 513. In this case, if the battery is in a normal state, the controller 110 detects the ambient illuminance of the mobile terminal through the sensor in step 515 and checks whether the ambient illuminance is greater than the set brightness. If the ambient illuminance is greater than or equal to the set brightness, the controller 110 detects this in step 515, and in step 517, turns on the camera unit 160 to capture ambient illuminance, and the image of the surrounding image is captured with the audio signal. Transmission through the RF communication unit 130.

Accordingly, the controller 110 drives the camera unit 160 when the output voltage of the battery is a normal voltage and the ambient illuminance is higher than the set brightness in the state of performing a security emergency call service, and the image obtained by the camera unit 160 is obtained through the microphone. Transmit along with the received audio signal. However, when the battery is in a low voltage state or the ambient illuminance is less than the set brightness, the control unit 110 detects it in step 513 or step 515, respectively, and the audio signal received when the driving of the camera unit 160 is turned off in step 519. Only send.

 The portable terminal according to an embodiment of the present invention has been described on the assumption that it has a function of sensing peripheral illumination. However, when the portable terminal does not have a function of detecting peripheral illumination, the controller 110 may skip step 515 and determine whether to drive the camera unit 160 by checking only the voltage of the battery.

In addition, the call service request of the mobile terminal may be generated by a third party such as a hijacker while the security emergency phone is in service. In this case, it is preferable to perform a normal outgoing call service even while performing the secure emergency call service. 6 is a flowchart illustrating a procedure of performing an outgoing call service while maintaining the function of the secure call service when an outgoing call function is required while performing the secure emergency call service in step 419 of FIG. 4.

Referring to FIG. 6, in step 551, the control unit 110 transmits audio received through a microphone through the RF communication unit 130 to perform a security emergency call service function. In this case, if the function of the terminal is turned on (folder on, slider on, key input, etc.), the controller 110 detects this in step 553 and checks whether the call service request is made in step 555. At this time, if the call service request, the control unit 110 detects this in step 555, and forms a call path according to the outgoing subscriber information input in step 557 to service the outgoing call. At this time, the display function according to the outgoing call service is also turned on. Thereafter, the controller 110 forms a call path with the called subscriber required in step 559 to service outgoing calls.

At this time, if the mobile terminal is a mobile terminal capable of performing a multi-party call service, the controller 110 forms a call path with the newly requested incoming subscriber while maintaining a transmission path with the secure emergency telephone subscriber in service. Service outgoing calls. Therefore, in the outgoing call service required by the hijacker, the audio signal generated during the call is transmitted to the subscriber side of the formed security emergency call. Personal information and location can be easily obtained.

After performing the outgoing call service as described above, if the call termination function is requested, the controller 110 detects it in step 561, terminates the outgoing call service and continues to maintain the secure emergency call service function. That is, if the outgoing call service end command is a general call end command (when terminated by a folder off, slider off, end key, etc.), the control unit 110 terminates only the outgoing call function, and is already in service. Keep the phone function.

The controller 110 of the portable terminal may perform a security emergency call service as shown in FIGS. 5 and 6. That is, step 551 of FIG. 6 may perform a security emergency call service by the same procedure as that of FIG. 5. In this case, when an outgoing call request is generated in a security emergency call service state in which an audio signal received from a microphone and an image captured by the camera unit 160 are transmitted, the controller 110 performs outgoing call request while performing steps 553 to 561. Perform a call service for.

1 is a diagram showing the configuration of a portable terminal according to an embodiment of the present invention.

2 is a flowchart illustrating an emergency call service procedure of a mobile terminal according to an embodiment of the present invention.

3 is a flowchart illustrating a procedure for registering emergency telephone information in a mobile terminal according to an embodiment of the present invention.

4 is a flowchart illustrating a procedure of performing an outgoing emergency call service according to an embodiment of the present invention.

5 is a flowchart illustrating a procedure of transmitting an image with audio by driving a camera in the step of performing the security emergency call service of FIG.

FIG. 6 is a flowchart illustrating a procedure of performing an outgoing call service while maintaining a function of a secure call service when an outgoing call function is required in performing the secure emergency call service of FIG. 4.

Claims (8)

In the call service method of a mobile terminal, Turning off the display function of the mobile terminal when the registered security emergency number is input and forming an outgoing call route in the registered contact telephone number; Performing a security emergency call function by transmitting an audio signal received through a microphone through the formed call path; And turning on the display function of the mobile terminal and terminating the secure emergency call service when a registered secure emergency call release number is input. The process of claim 1, wherein the forming of the secure emergency call origination call route is performed. Transmitting a message of a pre-registered user to at least one registered contact telephone number; And forming an outgoing call service path by forming a transmission path in the registered primary contact phone number after the message is transmitted. The method of claim 2, wherein the performing of the secure emergency call function comprises transmitting the audio signal received through the microphone to the main contact telephone number subscriber through the formed transmission path while the display function of the display unit and the speaker is turned off. The call service method characterized in that. The method of claim 3, wherein the performing of the secure emergency call function comprises: The method of claim 1, further comprising: driving a camera to obtain a peripheral image when the battery maintains a normal voltage and transmits the acquired image together with the received audio signal. The method of claim 3, wherein the performing of the secure emergency call function comprises: Turning on the display function of the terminal when an outgoing call is requested; Performing a general outgoing call service by dialing an input telephone number; And turning off the display function and returning to the secure emergency call function when the outgoing call is terminated. The method of claim 5, wherein the performing of the general outgoing call service comprises: And transmitting the call information generated during the call service to the subscriber to the main contact telephone number registered in the secure emergency call function. The method of claim 3, wherein the performing of the secure emergency call function comprises: Inspecting the remaining battery level to maintain a normal voltage, driving a camera to obtain a peripheral image, and transmitting the acquired image together with a received audio signal; A process of turning on the display function of the terminal upon requesting an outgoing call, dialing an input telephone number to perform a general outgoing call service, turning off the display function at the end of the normal outgoing call and returning to the secure emergency call function. The call service method characterized in that it further comprises. In the call service method of a mobile terminal, Registering a security emergency telephone number and release number entered in the secure emergency registration mode, contact and main contact telephone numbers for notifying the emergency state, and a message for notifying of an emergency situation; Turning off the display function of the mobile terminal upon inputting the registered security emergency phone number and transmitting the registered message to registered contact telephone numbers, and then forming an outgoing call route to the subscriber at the primary contact telephone number; Transmitting an audio signal received through a microphone through the formed call path to perform a security emergency call function; upon inputting a registered security emergency call release number, turning on the display function of the mobile terminal and providing the security emergency call service; The call service method, characterized in that consisting of the security emergency call service process consisting of terminating the process.

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