> 5 mechanical button
> 1 channel 10/100Mbps self-adaptive Ethernet
> To communicate with other residents in the same community
> Info publish, leave message, emergency calling
> Support DND setting and multiple outdoor station connection
> Support outdoor station and IPC monitor
> Support POE power supply
> Support SD card storage, video record and picture snapshot
> Handset Optiona

DH-VTH1520AS-H (2014-02-28, English)l