Patent ID: 8577415

Claim:
A wireless communication system, comprising: an intelligent terminal, comprising a first circuit board, and a first card holder and a first interface disposed on the first circuit board, wherein the first card holder is configured to receive a first subscriber identity module (SIM) card, and the first interface is electrically connected to the first card holder; and a wireless network accessing device, comprising a second circuit board, and a second card holder, a second interface, a baseband chip and a switch module disposed on the second circuit board, wherein the second card holder is configured to receive a second SIM card, the second interface is removably electrically connected to the first interface, and the switch module is electrically connected to the second card holder, the second interface and the baseband chip so that the baseband chip is selectively electrically connected to the first card holder or the second card holder for purpose of wireless network accessing through the first SIM card or the second SIM card; wherein the switch module comprises a plurality of switch units, each of the switch units comprises a movable terminal, a first stationary terminal and a second stationary terminal, the movable terminal is electrically connected to the first stationary terminal in a first status and to the second stationary terminal in a second status, the movable terminal is electrically connected to the baseband chip, the first stationary terminal is electrically connected to the first card holder via the first interface and the second interface, and the second stationary terminal is electrically connected to the second card holder; and wherein the wireless network accessing device is inserted into an interior of the intelligent terminal from an exterior of the intelligent terminal, and when the wireless network accessing device is inserted into the interior of the intelligent terminal, the first circuit board and the second circuit board are in a same plane.