Dahua IP Villa Videocitofono VTO2202F-P VTH5221DW Bidirezionale Audio PoE App Mobile
Note : Dahua latest English firmware version with SIP server feature. VTH5221DW-S2 has One-key Config function to easily set up VTO/VTH Video Intercom system. Model VTH5221DW -S2. PoE Protocol IEEE802.3af (PoE), IEEE802.3at (PoE+), Hi-PoE.