Patent ID: 7389125

Claim:
A mobile terminal for use with a control terminal in a wireless communications network, the control terminal being configured with switching control identification data that are associated with predetermined ring tone parameters, said mobile terminal comprising: a radio frequency module; a user input unit; a memory unit for storing call data that includes a call number of the control terminal, and termination control data that are associated with the predetermined ring tone parameters corresponding to the switching control identification data configured in the control terminal; and a processor unit coupled to said radio frequency module, said user input unit and said memory unit, said processor unit receiving control code data inputted via said user input unit, the control code data including a call data code portion corresponding to the call number of the control terminal stored in said memory unit, and a termination control code portion corresponding to one of the predetermined ring tone parameters stored in said memory unit, said processor unit being responsive to the control code data such that said mobile terminal establishes a communications link with the control terminal in the wireless communications network via said radio frequency module with reference to the call data code portion, and terminates automatically the communications link with the control terminal after a duration corresponding to the termination control code portion; whereby the control terminal is capable of outputting a control signal associated with the switching control identification data that corresponds to the termination control code portion of the control code data inputted via said user input unit of said mobile terminal.