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Geshrinari Shipyards started offering this type of door on the Ge-Y2-1a - Hanto-Class Starship in YE 33.
The door is a double pocket door that slides into wall. The doors are pneumatically driven and can be secured. The doors are controlled by either a Ge-Y1-E3103 - Intercom System panel or the ship's computer. The surface of the door is customizable, but the core of the door is Durandium Alloy and designed to withstand hard vacuum on one side.
The lower left button of the Ge-Y1-E3103 - Intercom System panel is programmed as a call button to notify the occupant that a person is at the door. Pressing the button and holding it for two seconds triggers a customizable door chime. In private areas the occupant of the room can specify the type of chime or voice message. Public areas the chime is set by the owner or ship's commander.