"Data from sensors and devices such as blood-pressure cuffs, pulse oximeter devices and activity trackers like Microsoft Band are transmitted via smartphone to the Azure cloud. From there, it's pulled into a Cortana Analytics Suite dashboard at a "contact center" staffed 24/7 by registered nurses who have a singular view of each customer's personalized care plan. When a person's data exceeds a custom-prescribed threshold, an alert is sent to the nurse, who then reaches out to the customer via phone call, video chat or secure text — often before the person even knows there's a problem."