CN107124705B - Telematics terminal for providing multi-sided voice call and method of controlling the same - Google Patents

Abstract

The invention discloses a remote information processing terminal. The telematics terminal includes: a signal processor for processing a voice signal of a multi-sided voice call, an Audio Video Navigation (AVN) including a Bluetooth module, a telematics unit (TMU) including a mobile communication module, and a controller for controlling the AVN, the TMU, and the signal processor, so as to simultaneously perform a first call connected to an external mobile terminal through the AVN using Bluetooth and a second call connected to a telematics emergency center through the TMU, thereby improving device efficiency and user convenience in an emergency state.

Description

Telematics terminal and method of controlling terminal providing multilateral voice calls

technical field

The present invention relates to a telematics terminal for providing multilateral voice calls and a method for controlling the terminal, and more particularly, to a telematics terminal for providing multilateral voice calls by supporting voice mixing and a A method for controlling the terminal.

Background technique

According to advances in electronic control technology, various devices of vehicles that were conventionally operated by mechanical methods are now operated by electrical methods for reasons of driver convenience and driving safety, and vehicle systems are gradually becoming more and more complex and advanced. Among them, telematics technology is now gradually developing.

Generally speaking, telematics is a wireless data service for information provided during the movement of the transmitting device, whereby computers, wireless communication technologies, GPS and technologies used to exchange text and voice signals over the Internet send and receive information. Telematics is a compound word of telematics and information, and refers to a telematics terminal that is configured to analyze various phenomena occurring in the vehicle and various information required for driving to facilitate convenience and A system that promotes safe driving.

Furthermore, in order to receive the telematics service, a telematics terminal having a function of using a global positioning system (GPS) and performing mobile communication is loaded in a vehicle. Telematics services apply mobile communication technology and positioning technology in vehicles to provide drivers with information about vehicle accidents, anti-theft sensing and driving directions, traffic and life information, games, and more. In addition, the telematics terminal may use Bluetooth to provide a hands-free function for telephone calls of the telematics terminal in the vehicle.

In addition, when a sudden car accident, natural disaster, airbag deployment, etc. occurs in the vehicle, the telematics terminal repeatedly tries to urgently call the emergency center of the telematics center.

However, according to the prior art, when a sudden car accident occurs during a Bluetooth hands-free call using a telematics terminal, the telematics terminal releases the Bluetooth hands-free call and repeatedly tries to call an emergency center urgently.

SUMMARY OF THE INVENTION

Accordingly, the present invention is directed to a telematics terminal for providing multilateral voice calls and a method for controlling the terminal while obviating one or more of the problems due to the deficiencies and disadvantages of the related art.

It is an object of the present invention to provide a telematics terminal for providing a multilateral voice call and a method for controlling the terminal for providing an emergency call function with Bluetooth hands-free calling.

Additional advantages, objects and features of the present invention will be shown in part in the description, and in part will become apparent to those skilled in the art on the basis of the following experimentation, or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

To achieve these objects and other advantages as presented and broadly described herein and in accordance with the objects of the present invention, a telematics terminal for providing a multilateral voice call includes a signal processor for processing the voice of the multilateral voice call signal; Audio Video Navigation (AVN) including a Bluetooth module; Telematics Unit (TMU) including a mobile communication module; and a controller for controlling the AVN, the TMU and the signal processor so that simultaneous execution A first call connecting to an external mobile terminal through the AVN using Bluetooth and a second call connecting to a telematics emergency center through the TMU.

In another aspect of the present invention, a method for controlling a telematics terminal for providing a multilateral voice call includes using Bluetooth to connect a voice call of an external mobile terminal as a first call, and when the first call is connected , and connect the second call to the telematics emergency center according to the preset event.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further description of the invention as claimed.

Description of drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention together with the description used to explain the principles of the invention. In the attached image:

1 is a schematic diagram of a telematics terminal for supporting multilateral voice calls according to an embodiment of the present invention;

2 is a block diagram of components of a telematics terminal according to an embodiment of the present invention; and

3 is a sequence diagram illustrating a method for controlling a telematics terminal for providing a multilateral voice call according to an embodiment of the present invention.

Detailed ways

In the following, specific reference will now be made to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In the drawings, the same or similar elements are denoted by the same reference numerals even though they are shown in different drawings, and a detailed description of the same or similar elements will be omitted. The suffix "module" and "unit" elements herein are used for descriptive convenience and thus are used interchangeably and do not have any discernible meaning or function. Furthermore, in the following description of the embodiments disclosed herein, a detailed description of related known art will be omitted when it may make the subject matter of the embodiments disclosed herein rather unclear. Furthermore, the accompanying drawings are made only for better understanding of the embodiments disclosed herein, and are not intended to limit the technical ideas disclosed herein, and it should be understood that the accompanying drawings are intended to include all modifications within the spirit and scope of the present invention Scenarios, Equivalents, and Alternatives.

Terms including "first," "second," etc. may be used to describe various examples, but the elements are not limited by the terms. Terms are used to distinguish one element from another, if applicable.

If an element is described as being "connected to", "mixed" or "coupled" to another element, it will be understood that the former can be directly connected to the latter or mixed with the latter or that the other element can be interposed between the two elements. On the other hand, if an element is described as being "directly connected", "directly intermingled" or "directly coupled" to another element, it will be understood that the other element is not interposed between the two elements.

The singular is intended to include the plural as well, unless the context clearly dictates otherwise.

In the following description of the invention, the terms "including" and "having" should be understood to mean the presence of the features, quantities, stages, operations, elements, components or combinations thereof described in the specification, and Does not include the presence of one or more other features, quantities, stages, operations, elements, components, or combinations thereof.

1 is a schematic diagram of a telematics terminal 10 for supporting multilateral voice calls according to an embodiment of the present invention.

Fig. 1 shows a telematics terminal 10, a telematics terminal 20 installed in a vehicle, an emergency rescue center 30, and the like.

The telematics terminal 10 may be a cellular phone, including a smartphone or the like.

The telematics terminal 20 may include Audio Video Navigation (AVN) with a Bluetooth module installed therein.

Here, the telematics terminal 20 may receive (31) data including a voice call of the telematics terminal 10. For example, when an occupant in the vehicle uses the telematics terminal 10 to provide a voice call, the telematics terminal 20 may use Bluetooth to connect (31) the corresponding voice call.

Additionally, the telematics terminal 20 may communicate with a telematics center including an emergency rescue center 30 (32). The telematics terminal 20 may include a mobile communication module and may be wirelessly connected (32) to a telematics center.

When a call applied to the telematics terminal 10 is connected using Bluetooth or a preset event such as the occurrence of a car accident, the telematics terminal 20 may not release the Bluetooth call (first call) and may perform a call connection with the emergency center 30 ( second call). According to the present invention, the deficiencies of conventional techniques for releasing a call can be overcome in the case of a multi-party voice call connection.

In addition, when the body is disabled during a voice call with hands-free in a sudden vehicle accident, especially in adverse situations such as CDMA/LTE weak electric fields with unstable communication, if the second call connection is repeatedly tried to the emergency center 30, then the passenger may be at risk. The present invention aims to overcome this drawback.

Hereinafter, referring to FIG. 2, the detailed configuration of the telematics terminal will be described. FIG. 2 is a block diagram of the components of the telematics terminal 100 according to an embodiment of the present invention.

2, the telematics terminal 100 may include a telematics unit (TMU) 110, an audio video navigation (AVN) 120, an output unit 150, a memory 170, a controller 180, and the like. The elements shown in FIG. 2 are not essential to the implementation of the telematics terminal 100, and thus the telematics terminal 100 described in this disclosure may include elements provided in greater or lesser numbers than these elements.

Specifically, among these elements, TMU 110 may include one or more devices for enabling telematics between telematics terminal 100 and a wireless communication system, between telematics terminal 100 and another telematics terminal 100, or telematics A module for wireless communication between the terminal 100 and an external server. Additionally, TMU 110 may include one or more modules for connecting telematics terminal 100 to one or more networks.

The TMU 110 may include at least one of a mobile communication module 111 , a wireless network module 113 and a location information module 115 .

The mobile communication module 111 can be optimized to and from mobile communication (eg, Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA), Code Division Multiple Access 2000 (CDMA2000), enhanced voice data, or enhanced voice data only (EV-DO), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) and Long Term Evolution-Advanced (LTE-A)) technologies At least one of a base station, an external terminal, and a server in a mobile communication network established by a standard or communication method transmits and receives radio signals. The radio signals may include various types of data transmitted and received according to voice call signals, video call signals, or text/multimedia messages.

The wireless network module 113 refers to a module for network access, and may be installed inside or outside the telematics terminal 100 . The wireless network module 113 may be configured to transmit and receive radio signals in a communication network according to wireless network technology.

Examples of wireless network technologies may include Wireless LAN (WLAN), Wireless Fidelity (Wi-Fi), Wireless Fidelity (Wi-Fi) Direct, Digital Living Network Alliance (DLNA), Wireless Broadband (WiBro), Worldwide Microwave Access Interoperability (WiMAX), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), and Long Term Evolution-Advanced (LTE-A)), and the wireless network module 113 may Data is sent and received according to at least one wireless network technology, which also includes network technologies not listed above.

The wireless network module 113 that performs wireless network access through a mobile communication network can be understood as a type of mobile communication module 111 in which WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE, LTE-A, etc. are used. Wireless network access is obtained via a mobile communication network.

The location information module 115 may be for collecting information about the location (or current location) of the telematics terminal, and representative examples of the location information module 115 may include a global positioning system (GPS) module or a wireless fidelity (WiFi) module . For example, when a GPS module is used, the telematics terminal may collect information about the location of the telematics terminal using signals transmitted from GPS satellites. As another example, when using a Wi-Fi module, the telematics terminal may gather information about the location of the telematics terminal based on information on wireless access points (APs) that transmit or receive radio signals to or from the Wi-Fi module Information. The location information module 115 may perform any of the functions of the other modules of the TMU 110, as necessary, to alternatively or additionally collect data regarding the location of the telematics terminal. The location information module 115 may be a module for collecting information about the location (or current location) of the telematics terminal, and may not be limited to a module that directly calculates or collects information on the location of the telematics terminal.

The AVN 120 may include an audio unit 121, a video unit 122, a short-range communication module 123, and the like. Audio/video input through the A/V input unit may be input to the AVN 120 through signal processing of the controller 180, and may be input to the display unit 151 and the sound output module 152 which will be described later.

The AVN 120 may include a short-range communication module 123 . The short-range communication module 123 may be used for short-range communication and may use Bluetooth ^™ , Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), Wireless Personal Area Network (ZigBee), Near Field Communication (NFC), At least one of Wireless Fidelity (Wi-Fi), Wi-Fi Direct, and Wireless Universal Serial Bus (Wireless USB) technologies supports short-range communication. The short-range communication module 123 may support between the telematics terminal 100 and a wireless communication system, between the telematics terminal 100 and another telematics terminal 100, or between the telematics terminal 100 and another remote among them through a short-range wireless communication network. Wireless communication between networks in which the information processing terminal 100 (or an external server) is located. The short-range wireless communication network may be a short-range wireless personal communication network. In this disclosure, the invention is described in terms of Bluetooth ^™ . The Bluetooth module may communicate with an external mobile terminal (not shown) according to the control of the controller 180 . In detail, the ANV 120 may perform pairing with a mobile terminal (not shown), and then transmit and receive information to and from an external mobile terminal.

The A/V input unit 130 may include a camera 121 or an image input unit for inputting image signals, a microphone 122 or an audio input unit for audio signal input, and a user input unit 123 for receiving information from a user, such as touch buttons, mechanical buttons, etc. Voice data or image data collected by the A/V input unit 130 may be analyzed and processed according to a user's control command.

Then, the A/V input unit 130 may be used to input image information (or signals), audio signals (or signals), or information input from a user, and for inputting image information, the telematics terminal 100 may include one or more cameras 121 . The camera 121 may process image frames, such as still images or video images obtained by an image sensor in a video call mode or a shooting mode. The processed image frames may be displayed on the display unit 151 or stored in the memory 170 . A plurality of cameras 121 included in the telematics terminal 100 may be arranged in a matrix, and a plurality of image information items having various angles or focal points may be input to the telematics terminal through the cameras 121 that have been arranged in a matrix 100. Also, in order to obtain left and right images for realizing a stereoscopic image, a plurality of cameras 121 may be arranged in a stereoscopic structure.

The microphone 122 may process external audio signals as electronic voice data. The processed voice data can be widely used according to the function (or the application program executed) performed by the telematics terminal 100 . Various noise removal algorithms for removing noise generated during the input of the external sound signal may be embodied in the microphone 122 .

The user input unit 123 may be used to receive information from a user, and when information is input through the user input unit 123, the controller 180 may control the operation of the telematics terminal 100 to correspond to the input information. The user input unit 123 may include mechanical input elements (or mechanical keys, such as buttons, dome switches, adjustment knobs, wheel switches, etc., which are positioned on the front or rear surface or sides of the telematics terminal 100) and contact-type input elements. For example, the touch-type input elements may include virtual keys, soft keys, or visual keys, which are displayed on the touch screen by processed software, or touch keys disposed in a portion other than the touch screen. The virtual or visual keys may be displayed on the touch screen in various shapes, and may include, for example, graphics, text, charts, video, or a combination thereof.

The output unit 150 may generate outputs related to vision, hearing, touch, etc., and may include one of the display unit 151 and the sound output module 152 . The display unit 151 may be formed in an interlayer structure with a touch sensor, or may be integrally formed with the touch sensor to constitute a touch screen. The touch screen can be used as the user input unit 123, which provides an interface between the telematics terminal 100 and the user, and can simultaneously provide an output interface between the telematics terminal 100 and the user.

The display unit 151 may display (output) information processed by the telematics terminal 100 . For example, the display unit 151 may display execution image information of an application program driven by the telematics terminal 100 or information of a user interface (UI) and a graphical user interface (GUI) according to the execution image information.

The sound output module 152 may output audio data received from the TMU 110 or stored in the memory 170 in a call signal reception mode, a call mode or recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 may output sound signals associated with functions performed by the telematics terminal 100 (eg, call signal reception sound and message reception sound). The sound output module 152 may include a receiver, a speaker, a buzzer, and the like. The sound output module 152 may be arranged at the left/right/front/rear of the vehicle.

The memory 170 may store data for supporting various functions of the telematics terminal 100 . The memory 170 may store various application programs (or applications) driven by the telematics terminal 100 and data items and commands for the operation of the telematics terminal 100 . At least some applications can be downloaded from external servers via wireless communication. In addition, at least a part of the application program may exist on the telematics terminal 100 to prevent the release of basic functions of the telematics terminal 100 (eg, telephone reception and transmission function and information reception and transmission function). Application programs may be driven to be stored in the memory 170 and installed in the telematics terminal 100 to perform operations (or functions) of the telematics terminal through the controller 180 .

The memory 170 may store programs for operations of the controller 180, and may temporarily store input/output data items (eg, contacts, messages, still images, and videos). The memory 170 may store data regarding various patterns of vibration and sound output during touch input in the touch screen.

The memory 170 may include a flash memory type, a hard disk type, a solid state drive (SSD) type, a silicon disk drive (SDD) type, a mini multimedia card type, a card type memory (eg, SD or XD memory), random access memory (RAM), At least one of the storage media of static random access memory (SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disk and optical disk a type. The telematics terminal 100 may operate with respect to network storage that performs the function of the memory 170 in the network.

The controller 180 may generally control all operations of the telematics terminal 100 rather than operations related to applications. The controller 180 may process signals, data, information, etc., which are input or output through the aforementioned components and drive application programs stored in the memory 170 in order to provide or process information or functions suitable for the user.

In order to drive the application program stored in the memory 170 , the controller 180 may control at least one part of the components described with reference to FIG. 1 . Also, in order to drive the application program, the controller 180 may combine and operate at least two components included in the telematics terminal 100 .

In order to implement a method of operating, controlling, or controlling a telematics terminal according to various embodiments of the present invention to be described later, at least some of the aforementioned components may be cooperatively operated. Also, the operation, control or control method of the telematics terminal may be implemented in the telematics terminal via the driving of at least one application program stored in the memory 170.

The signal processor 140 may process the transmitted and received signals under the control of the controller 180 . The processing of transmitted signals may be referred to as Tx signal processing, and the processing of received signals may be referred to as Rx signal processing. The signal processor 140 may process voice signals of a multilateral voice call. The multilateral voice call may be a first call entered through Audio Video Navigation (AVN) and a second call entered through a Telematics Unit (TMU).

Here, the AVN may include audio, video and navigation functions and may be installed in a vehicle. In particular, the AVN may include a Bluetooth module between short-range communication modules, and transmit and receive data to and from external mobile terminals. For example, it may be assumed that a call is attempted with hands-free when an occupant of the vehicle performs a voice call using a mobile terminal. In this case, the telematics terminal 100 may use the Bluetooth module of the AVN 120 to provide a voice call of the passenger's mobile terminal with hands-free.

The controller 180 can set multiple communication paths. For example, the controller 180 may set a first call connected to the external mobile terminal through the AVN 120 using Bluetooth as the first channel path. In addition, the controller 180 may set a second call connected to the telematics emergency call center through the TMU 110 as a second channel path. Although the above communication has been exemplified in this disclosure, it is apparent that a plurality of communication channels are actually set up by the controller 180 . Therefore, according to the problem of the related art, the Tx signal is not transmitted to the mobile communication module 111 or the short-range communication module 123 at the same time.

Hereinafter, the present invention will be described according to the operation of the telematics terminal 100 performing a multilateral voice call.

Embodiments of a method for controlling a telematics terminal for providing multilateral voice calls

3 is a sequence diagram illustrating a method for controlling a telematics terminal for providing a multilateral voice call according to an embodiment of the present invention.

Referring to FIG. 3, a voice call of the external mobile terminal as the first call is connected using Bluetooth (S310). The external terminal may be provided in the vehicle or within a short-distance communication distance of the AVN including the Bluetooth module.

In this case, the controller 180 may set a channel path for the first call connection. For channel routing, complex programmable logic devices (CPLDs) can also be used. The CPLD may determine whether only one or both of the two BT modules and the mobile communication module 111 are set. In the present disclosure, the present invention will be described according to a case in which the controller 180 sets a plurality of channels allowing a multilateral voice call.

Additionally, the first call may be triggered by user input. The controller 180 may be in a standby state to receive user input, and when the user input is input, a first call connection may be attempted. For example, when a passenger wants to perform a call with Bluetooth handsfree during a voice call using the mobile terminal, user input including touch, key input, etc. may be input to the telematics terminal 100 through the display unit 151 . Here, short messages, long messages, video, etc. and voice signals may be transmitted through the first channel path. Also, any data can be sent as long as it can be sent using Bluetooth.

When connecting the first call, the controller 180 may connect the telematics emergency center and the second call according to a preset event (S320).

Here, the preset event may correspond to a situation in which a problem such as a car accident occurs, a user input for connecting with a telematics emergency center is entered, or the like. However, the present invention is not limited to this, and the situation in which the second call is triggered may be widely configured as long as the situation is preset.

The telematics emergency center may be one of the servers supported by the telematics center and may receive SOS, automatic failure notification received from the telematics terminal in order to provide emergency call service for situations in which a problem occurs in the vehicle (ACN) et al.

The controller 180 may control the AVN 120, the TMU 110 and the signal processor 140 to simultaneously perform a first call connected to an external mobile terminal through the AVN using Bluetooth and a second call connected to a telematics emergency center through the TMU.

Here, the controller 180 may be set as the second channel path of the signal transmitted through the second call.

At least one voice output module may be arranged in the vehicle. An example of the speech output module will be described based on the aforementioned speaker. For example, speakers may be provided at the left, right, front and rear of the vehicle.

Embodiments of Voice Signal Reception for Telematics Terminals for Providing Multilateral Voice Calls

The controller 180 may control the signal processor 140 and perform voice mixing on voice signals received from the first call and the second call. Here, the voice mixing refers to a method for mixing the voice signal from the first call and the voice signal from the second call and receiving the voice signals of both calls through only one speaker. The received speech signal can be processed by components such as DiRaNa. In this case, the controller 180 may mix the first call and the second call into the vehicle through the speaker to obtain a voice signal.

Also, when the signal processor 140 has a voice mixing function, the inconvenience of separately receiving voice signals from the TMU 110 processed by DiRaNa can be overcome.

On the other hand, when the signal processor 140 does not have a voice mixing function, the controller 180 may provide the voice signal received from the first call to the vehicle through some speakers and the voice signal received from the second call to the vehicle through some other speakers voice signal in .

When the first call connected to the external mobile terminal using Bluetooth is connected through the AVN 120 and the second call is not connected to the telematics emergency center through the TMU 110, the controller 180 may control the TMU 110 to repeatedly perform the attempted second call according to the preset reference call connection. The preset benchmark may be a preset time interval, a preset number of connection attempts, and the like. When the preset benchmark is 10 minutes, the controller 180 may try to call and connect the telematics emergency center for 10 minutes.

According to the aforementioned various embodiments of the present invention, a telematics terminal for supporting a multilateral voice call can be used to handle emergency situations without panic, thereby improving user convenience.

In addition, the telematics terminal can support side-to-side voice calls, and thus a voice signal processing module of a telematics unit (TMU) is not necessary, thereby increasing equipment efficiency and reducing costs.

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. The computer-readable recording medium is a data storage device that can store data which can be thereafter read by a computer system. Examples of computer-readable recording media include hard disk drives (HDDs), solid-state drives (SSDs), silicon disk drives (SDDs), ROMs, RAMs, CD-ROMs, magnetic tapes, floppy disks, and optical data storage devices, and can be recorded in a carrier wave (eg, , sent over the network). Also, the computer may include the controller 180 of the terminal. Accordingly, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the inventions. Therefore, it is intended that the present invention cover modifications and variations of the present invention within the scope of the appended claims and their equivalents.

Claims (12)

1. A telematics terminal for providing a multi-sided voice call, the telematics terminal comprising:

a signal processor for processing a voice signal of the multi-lateral voice call;

audio video navigation including a bluetooth module;

a telematics unit including a mobile communication module; and

a controller for controlling the audio video navigation, the telematics unit, and the signal processor such that a first call connected to an external mobile terminal through the audio video navigation using Bluetooth and a second call connected to a telematics emergency center through the telematics unit are simultaneously performed.

2. The telematics terminal of claim 1, further comprising at least one speaker,

wherein:

the signal processor performing voice mixing with respect to voice signals received from the first call and the second call; and

the controller controls the signal processor to provide the voice mixed voice through the speaker.

3. The telematics terminal of claim 1, further comprising at least one speaker,

wherein the processor provides voice signals received from the first call through some speakers and provides voice signals received from the second call through other speakers.

4. The telematics terminal of claim 2, wherein the at least one speaker is disposed at a left, right, front, and rear of the vehicle.

5. The telematics terminal of claim 1, wherein the controller sets a first channel path for signals transmitted through the first call and sets a second channel path for signals transmitted through the second call.

6. The telematics terminal of claim 1, wherein to attempt connection of the first call, the processor is in a standby state to receive user input.

7. The telematics terminal of claim 5, wherein at least one of a short message, a long message, and a video passes through the first channel path when the first call is connected.

8. A telematics terminal for providing a multi-sided voice call, the telematics terminal comprising:

a signal processor for processing a voice signal of the multi-lateral voice call;

audio video navigation including a bluetooth module;

a telematics unit including a mobile communication module; and

a controller for controlling the telematics unit such that when a first call is connected to an external mobile terminal through the audio video navigation using Bluetooth and a second call is not connected to a telematics emergency center through the telematics unit, the connection of the second call is repeatedly attempted according to a preset reference.

9. The telematics terminal of claim 8, wherein the preset reference is set according to at least one of a preset time interval and a preset number of connection attempt times.

10. A method for controlling a telematics terminal for providing a multi-sided voice call, the method comprising the steps of:

a voice call of the external mobile terminal using the bluetooth connection as a first call; and

when the first call is connected, a second call is connected to a telematics emergency center according to a preset event.

11. The method of claim 10, wherein connecting as the first call comprises triggering the first call based on user input.

12. The method of claim 10, further comprising the steps of:

providing, by a first speaker, a voice signal received by the first call and providing, by a second speaker, a voice signal received by the second call when the first call and the second call are connected.

Images