An electronic device and method thereof are provided. The electronic device includes a communication module configured to communicate with a communication server; an input module configured to receive a user command; and a processor configured to receive a device changing command, via the input module, during a call between the electronic device and a first external electronic device, and transmit, to the communication server, via the communication module, a message for changing the call between the electronic device and the first external electronic device to a call between a second external electronic device and the first external electronic device. The second external electronic device uses a same subscription information as the electronic device, and the message includes call state information of the call between the electronic device and the first external electronic device.