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Door Status Display

= Door is closed.
= Door is open.
= Door is locked.
= Bolt is locked, but door is open!

Light Status Display

= Light is off.
= Icon is on: Lights are on, need to be switched off manually.

Microphone Status Display

: Microphone is switched off, no announcements possible.

: Microphone is switched on, announcements are possible.

: Microphone connection is blocked; possibly because a connection exists from another remote station.