Patent ID: 7558601

Claim:
A method of switching communication modes of a communication device having a connecting port on a surface thereof for connecting to an external communication module and comprising a control module, a built-in communication module, and a user operating module, wherein said control module is connected respectively to said connecting port, said built-in communication module, and said user operating module, said external communication module and said built-in communication module are matched with different respective communication systems and, when said communication device determines, through said control module, that said connecting port is connected to said external communication module, said control module carries out a procedure comprising the steps of: using said user operating module to display a user interface on a display unit of said communication device, wherein said user interface includes a simultaneous activation option, an external communication activation option and a built-in communication activation option; receiving an activation signal generated and transmitted by said user operating module through said user interface after said user interface begins to be in operation; determining whether or not said simultaneous activation option, said external communication activation option or said built-in communication activation option is selected according to said activation signal; and activating both said external module and said built-in communication module, or either one of said external module and said built-in communication module, depending on said activation signal.