A method for changing a standby order of waiting mobile terminals includes displaying a standby order of a plurality of mobile terminals according to an audiovisual communication request order when a first mobile terminal receives requests for audiovisual communication from the plurality of mobile terminals while the first mobile terminal performs audiovisual communication with a second mobile terminal, sending a standby order change request message from the first mobile terminal to a mobile communication network when the first mobile terminal receives a standby order change request, changing the standby order at the first mobile terminal when the first mobile terminal receives a standby order change completion message from the mobile communication network corresponding to the standby order change request message, and displaying the changed standby order.