Abstract: A remote controller includes a processor, a display unit, a input unit, a communicator. The processor is configured to generate a mode interface. The display unit is configured to display the mode interface. The input unit is configured to generate control commands under the condition that a user presses the input unit according to the mode interface displayed on the display unit. The processor generates a plurality of remote control signals according to the control commands and transmits the remote control signals to a communicator. The communicator is configured to emit remote control signals to at least two electric appliances to control at least two electric appliances. A remote control method using the remote controller is also provided.

Abstract: A communication terminal includes an electronic phonebook, a status requesting unit, a communication unit and an updating unit. The electronic phonebook records phone numbers, and a communicating status corresponding to each of the phone numbers. The status requesting unit generates a request of reading the communicating statuses of the monitored phone numbers in the electronic phonebook. The communication unit transmits the generated request to a communication switching center and receives the communicating statuses of the monitored phone numbers transmitted by the communication switching center. The updating unit updates the communicating statuses of the monitored phone numbers according to the received communicating statuses.