Below is a top view of the Dolby Voice Conference Phone. The picture literally covered the wall of the BT/Dolby suite. key features to note are the blue “ring” indicating an active conversation/open line and the CD-sized touchscreen at the 6 O’clock position.
The shiny bar at the top of the touchscreen is a large tactile mute button. The center blue indicator ring changes to red to indicate the call is muted.
Here’s the picture of real hardware on a conference table. BT and Dolby had no qualms putting it next to a Polycom Soundstation for a visual comparison to invite a discussion on design.