&gt; What does LTE-U do that you can&#x27;t already do with wifi, and WiFi calling?<p>It gives the telcos a way to measure and control your access to their network and services so they can bill you for it. Wifi calling offloads everything but the actual phone call to a 3rd party (i.e. not Verizon) so Verizon can&#x27;t keep their fingers in the pie.