Home appliance and control method thereof

1. A control method of a home appliance, the method comprising:

retrieving information about a communication device;

authenticating the communication device using the information;

registering the authenticated communication device;

receiving identification information of a receiver that receives a call request when the user inputs the call request;

making a call to the receiver through the communication device in response to receiving the identification information of the receiver;

receiving a first voice data from the authenticated communication device, the first voice data being received from another communication device through the communication device;

outputting a first voice signal corresponding to the first voice data to a user;

receiving a second voice signal from the user; and

transmitting a second voice data corresponding to the second voice signal to the communication device, the second voice data being transmitted to the another communication device through the communication device.

2. The method according to claim 1 , further comprising ending communication with the communication device when a call device change command is input by the user.

3. The method according to claim 1 , wherein the retrieving comprises:

transmitting a retrieval signal to the communication device through a local area communication network; and

receiving a response signal and the information including identification information of the communication device.

4. The method according to claim 1 , wherein the authenticating comprises:

generating an authentication code to authenticate the communication device;

transmitting the authentication code to the communication device;

receiving a code corresponding to the authentication code from the user; and

authenticating the communication device according to a comparison result between the received code and the authentication code.

5. The method according to claim 1 , wherein the authenticating comprises:

receiving identification information from the communication device when the communication device is docked; and

authenticating the communication device transmitting the identification information.

6. The method according to claim 1 , wherein the authenticating comprises:

authenticating the communication device transmitting identification information of the retrieved communication device when the identification information is input via near field communication.

7. The method according to claim 1 , wherein the registering comprises storing an identification code of the authenticated communication device.

8. The method according to claim 1 , further comprising displaying identification information of a caller that transmits a call request when the call request is received from the communication device.

9. The method according to claim 8 , wherein the identification information of the caller comprises at least one of a name, a picture, and a telephone number of the caller.

10. The method according to claim 1 , wherein the identification information of the receiver comprises at least one of a name and a telephone number of the receiver.

11. The method according to claim 1 , further comprising:

transmitting a calling signal to the communication device when the user inputs a calling command for the registered communication device; and

stopping transmitting the calling signal when a response signal to the calling signal is received.

12. The method according to claim 1 , further comprising:

transmitting a calling signal to the communication device when the user inputs a calling command.

13. The method according to claim 12 , further comprising:

determining whether the calling command is an emergency call command; and

when it is determined that the calling command is the emergency call command, transmitting an emergency call request.

14. The method according to claim 13 , wherein the emergency call command includes a predetermined a gesture by the user or a predetermined movement of the user.

15. A home appliance comprising:

a voice input unit configured to receive a voice signal of a user;

a sound output unit configured to output sound;

a communication unit configured to transmit and receive voice data to and from a communication device; and

a controller configured to

control the sound output unit to output a sound signal corresponding to a first voice data received from the communication device the first voice data being received from another communication device through the communication device, and

control the communication unit to transmit a second voice data corresponding to the voice signal of the user, the second voice data being transmitted to the another communication device through the communication device,

wherein the controller is configured to receive identification information of a receiver that receives a call request when the user inputs the call request and make a call to the receiver through the communication device in response to receiving the identification information of the receiver.

16. The home appliance according to claim 15 , wherein the controller transmits a retrieval signal to the communication device in order to retrieve the communication device and receives a response signal and identification information of the communication device.

17. The home appliance according to claim 15 , wherein the communication unit comprises a wired communication module to wired-communicate with the communication device, a local area radio communication module to perform local area radio communication with the communication device, and a near field communication module to perform near field communication with the communication device.

18. The home appliance according to claim 17 , wherein the controller transmits, through the local area radio communication module, an authentication code to the communication device and authenticates the communication device according to a comparison result between a code input by the user and the authentication code.

19. The home appliance according to claim 17 , wherein the controller receives, through the wired communication module, identification information from the communication device when the communication device is docked and authenticates the docked communication device.

20. The home appliance according to claim 17 , wherein the controller authenticates the communication device transmitting identification information upon receiving the identification information through the near field communication module.

21. The home appliance according to claim 15 , further comprising a storage unit to store a program and data,

wherein the controller stores identification information of the communication device in the storage unit.

22. The home appliance according to claim 15 , wherein the controller controls the communication unit to transmit a calling signal to the communication device when the user inputs a calling command.

23. The home appliance according to claim 22 , wherein the controller determines whether the calling command is an emergency call command, and when it is determined that the calling command is the emergency call command, the controller controls the communication unit to transmit an emergency call request.

24. The home appliance according to claim 23 , wherein the emergency call command includes a predetermined gesture by the user or a predetermined movement of the user.