US Patent 8744492 Method of responding to incoming calls and messages while driving

A method of responding to incoming calls while driving includes establishing a connection between an electronic device and a mobile phone to enable the electronic device to receive calls through the mobile phone. The electronic device receives position signals, calculates a speed at which the electronic device is moving, and thereby calculates a driving speed. The electronic device determines whether the driving speed is greater than a speed threshold when the mobile phone has an incoming call. The electronic device presents the user of the electronic device with an option to answer the incoming call when the driving speed is less than the speed threshold, and the electronic device presents the user with the option to answer the incoming call when the driving speed is greater than the speed threshold and when a phone number associated with the incoming call is present in a list of important contact numbers.