| 摘要 |
According to an embodiment of the present invention, a calling method using a wireless calling system simultaneously displaying a video and a call number in a pre-installed terminal comprises the following processes of: connecting a wireless call reception module to the pre-installed terminal; allowing a plurality of wireless call transmitters to transmit wireless call signals of random frequencies, containing calling information including unique device identification information, to the wireless call reception module when a button is pressed; allowing the wireless call reception module to receive the wireless call signals of one or more frequencies, to detect the calling information from the wireless call signals, and to provide the same to the terminal; and allowing the terminal to load and display a call number corresponding to the device identification information included in the calling information, when receiving the calling information from the wireless call reception module. |
