Telephone and Data Systems, Inc. is a diversified telecommunications company. It provides wireless, cable and wireline broadband, video, and voice, and hosted and managed services through its businesses, UScellular and TDS Telecom. Co.'s segments include UScellular and TDS Telecom. TDS segment provides wireless telecommunications services. UScellular segment offers a range of devices, such as smartphones and other handsets, tablets, wearables, mobile hotspots, routers, and Internet of things devices.