A cell phone with software to provide options to auto-respond to incoming text message or phone calls with a pre-stored text message or audio message. In some embodiments, the auto-response text message can be one selected by the user from among a plurality of pre-stored text messages. In other embodiments, the user can also choose an auto-response audio message to play to callers. In some embodiments, the cell system makes a determination of the speed at which cell phones in the system are moving for at least phones to which incoming text messages or phone calls are directed, and automatically determines whether or not to send an automated response message. In some embodiments, the cell phone makes a determination of its speed and asks the user if he or she wants to auto-respond to incoming texts or calls or both if moving at driving speed.