Calling on a multi-display device

A computing device, comprising

• a first portion comprising a first display and a speaker;
• a second portion comprising a second display and a telephone receiver;
• a sensor system;
• a logic subsystem;
• and
• a storage subsystem comprising instructions executable by the logic subsystem to
• in response at least to receiving user interaction regarding a phone call at the first portion, output, via the first display, a notification indicating that the telephone receiver is unavailable when conducting the phone call using the first display as an active display, and that the speaker is available when conducting the phone call using the first display as the active display;
• and
• in response at least to receiving a user input, transfer a user interface for conducting the phone call from the first display to the second display.

At a computing device, a method, comprising

• in a flip mode in which one of a first display of the computing device and a second display of the computing device is an active display, and the other of the first display and the second display is an inactive display, displaying on the active display a pinned app bar comprising one or more controls each selectable to execute a corresponding application;
• and
• in a double display mode in which both of the first display and the second display are active displays, displaying on the first display and the second display the pinned app bar,
• wherein, in the double display mode, the one or more controls of the pinned app bar are distributed between the first display and the second display, and in the flip mode, the one or more controls are distributed across the active display.