| 摘要 |
An access, monitoring and communication device and method for at least one protected local area of buildings, rooms or properties is described. The device includes at least one master unit having the following components: a monitor, a camera, a loudspeaker, a microphone, at least one function key, a controller, a memory and a signal and data transmission device with a network interface for signal transmission to and from at least one distant station via an IP network. As an additional component, the master unit comprises a reader for reading ID numbers stored on ID cards as an identification feature.
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