When far away from cellphone towers, people in remote locations or in emergencies rely on satellite phones, devices that connect to satellites in orbit to send messages or make calls. Last week, Apple announced a feature for its newest iPhones that will allow some users to send emergency texts through a satellite connection. Elon Musk’s Starlink also has a plan to turn your cellphone into a sat phone. Marketplace’s Kimberly Adams speaks with Tim Farrar, president of consulting firm Telecom, Media and Finance Associates, about why big tech and telecom companies are getting into satellite communications and how much consumer demand there is for sat phones.