Google has started rolling out Virtual Desks to Chromebooks giving users a power user feature typically seen in more fully-fledged operating systems like Windows and macOS. The latest update also includes a new Click-to-call feature and easier compatible printer selection.
https://www.notebookcheck.net/Virtual-Desks-and-Click-to-call-rolling-out-to-Chromebooks.441307.0.html
Click-to-call refers to an ad category (formerly AdWords) of Google that explicitly calls the company by clicking in lieu of a connection to its website. Such advertisements can only be viewed on mobile devices and are therefore important for mobile marketing campaigns. Click to Call ads and click-to-talk extension are both available.