Apparatus and method for providing conference call in mobile communication

A method for providing a conference call service in an electronic device, the method comprising:

• obtaining an IDentifier (ID) of a user;
• identifying a participant to take part in a conference call by detecting input data of the ID, and sending participant information to a conference server;
• receiving participant schedule information from the conference server and generating conference call reservation information comprising an available conference call schedule;
• and
• registering the generated conference call reservation information with the conference server,
• wherein the ID comprises at least one of an ID stored in the portable terminal, an ID registered with a web site, an ID stored with a cloud system, and an ID registered with a groupware application.

A method for providing a conference call service in a conference server, the method comprising:

• when receiving participant information of a conference call from a host terminal which hosts the conference call, requesting schedule information from each participant terminal;
• receiving from a participant and sending the schedule information to the host terminal;
• receiving from the host terminal, registering, and managing, conference call reservation information;
• sending the conference call reservation information received from the host terminal, to a participant terminal;
• and
• sending a conference call connection request to the host terminal and the participant terminal when the conference call is conducted.

An electronic device for providing a conference call function, the electronic device comprising:

• at least one processor;
• a memory;
• and
• at least one program stored in the memory and configured for execution by the at least one processor,
• wherein the program comprises an instruction for displaying a main screen which comprises at least one of a region for displaying a conference call candidate list, a region for searching for a conference call participant, a region for displaying a list of participants selected as conference call members, and a region for displaying a conference call execution menu, adding a user selected in the displayed candidate list when a user is selected, to a list of participants selected, and conducting a conference call with the user added to the list of the selected participants.