A control unit for a moveable barrier, such as a garage door, includes a microcontroller connected to a motor speed detector, motor current sensor or a sensor for determining forces exerted on or by the barrier. The method includes displaying a content including call identifier information, storing information corresponding to the call identifier information from the content, and using the stored information for at least one of a call log and a contact list. A drive is provided for driving the rotary cam shaft and thus pivot the latches, one after the other, from their closed position into their opened position. If the medical care cannot be validated, the feedback includes the reasons for the failure to validate, and any supporting materials for the lack of validation.