Method and apparatus for transmitting and receiving voice call in communication system

A terminal communicating a voice call in a communication system, the terminal comprising:

• a communicating device configured to communicate a voice call;
• an application performing device configured to perform a plurality of applications;
• a short-range communication device configured to communicate data with another terminal using a short-range communication technology;
• a voice call managing device configured to provide a call forwarding service transferring the voice call to the other terminal;
• and
• an operating device configured to:
• manage data communication among the voice call managing device, the application performing device, and the short-range communication device,
• set up a call forwarding application set comprising at least one application selected from the plurality of applications,
• determine, when an application among the plurality of applications is being executed, whether the application is included in the call forwarding application set, and
• inform the voice call managing device that the application included in the call forwarding application set is executed,
• wherein the voice call managing device is further configured to:
• determine whether the call forwarding service is being executed when receiving a message indicating that the application included in the call forwarding application set is executed from the operating device,
• execute the call forwarding service unless the call forwarding service is being executed, and
• transfer the voice call received by the communicating device to the other terminal while performing the application included in the call forwarding application set if the application is included in the call forwarding application set.

A method for communicating a voice call by a plurality of terminals in a communication system, the method comprising:

• setting up, by a first terminal that is a representative terminal for receiving a voice call, a function for using a call forwarding service with a second terminal that is an auxiliary terminal and registering a call forwarding service with the second terminal in a server;
• setting up, by the first terminal, a call forwarding application set comprising at least one application selected from a plurality of applications in the first terminal;
• determining, by the first terminal, when an application in the first terminal is executed on the first terminal, whether the application is included in the call forwarding application set;
• transmitting, by the first terminal, if the application is included in the call forwarding application set, a request for the call forwarding service to the second terminal to the server so that the server establishes a voice call bearer between the server and the first terminal and between the server and the second terminal;
• and
• transferring, by the first terminal, when receiving a voice call from a third terminal, the voice call from the third terminal to the second terminal through the voice call bearer between the server and the first terminal and between the server and the second terminal while performing the application included in the call forwarding application set if the application is included in the call forwarding application set.

A method for communicating a voice call by a plurality of terminals in a communication system, the method comprising:

• receiving, by a server, a call forwarding service registration request message from a first terminal that is a representative terminal for receiving a voice call and a second terminal that is an auxiliary terminal and registering the first terminal and the second terminal in a call forwarding service terminal list;
• receiving, by the server, a call forwarding service request message from the first terminal detecting that an application included in a call forwarding application set is executed, the call forwarding application set comprising at least one application selected from a plurality of applications in the first terminal;
• establishing, by the server, a voice call bearer between the first terminal and the second terminal;
• and
• receiving, by the server, a voice call transmitted from the third terminal through the established voice call bearer from the first terminal and transferring the voice call to the second terminal while performing the application included in the call forwarding application set if the application included in the call forwarding application set is executed.

A terminal communicating a voice call in a communication system, the terminal comprising:

• a communicating device configured to communicate a voice call;
• and
• a voice call managing device configured to:
• provide a call forwarding service with an auxiliary terminal,
• set up a function for using the call forwarding service with the auxiliary terminal,
• set up a call forwarding application set comprising at least one application selected from a plurality of applications,
• determine when an application in the first terminal is executed on the first terminal, whether the application is included in the call forwarding application set,
• register the call forwarding service with the auxiliary terminal in a server, if the application is included in the call forwarding application set,
• transmit a request for the call forwarding service to the auxiliary terminal to the server to establish a voice call bearer between the server and the terminal and between the server and the auxiliary terminal, and
• transfer, when receiving a voice call from an opposite terminal, the voice call from the opposite terminal to the auxiliary terminal through the voice call bearer between the server and the terminal and between the server and the auxiliary terminal while performing the application included in the call forwarding application set if the application is included in the call forwarding application set.

A server supporting a plurality of terminals to communicate a voice call in a communication system, the server comprising:

• a communicating device configured to communicate a message with the plurality of terminals;
• and
• a call forwarding device configured to:
• provide a call forwarding service between the plurality of terminals,
• wherein the communicating device is further configured to:
• receive a call forwarding service registration request message from a first terminal that is a representative terminal for receiving a voice call and a second terminal that is an auxiliary terminal, and
• receive a call forwarding service request message to the second terminal from the first terminal detecting that an application included in a call forwarding application set is executed, the call forwarding application set comprising at least one application selected from a plurality of applications in the first terminal,
• register, upon receiving the call forwarding service registration request message, the first terminal and the second terminal in a list of call forwarding service terminals,
• establish, upon receiving the call forwarding service request message, a voice call bearer with the first terminal and the second terminal, and
• receive the voice call transmitted from the third terminal through the established voice call bearer from the first terminal and to transfer the voice call to the second terminal while performing the application included in the call forwarding application set if the application included in the call forwarding application set is executed.