1, TCP/IP digital indoor phone 2, Romote control via IE or mobile 3 ... system 4, CE,FCC,ROHS Certificated ip video door phone,video intercom,video door bell,video intercom ip, 1 ... issued picture, characters and video information to the indoor phone.10) Visitor message, call records, and missed call ... Security alarm 8 Zone Temperature -10 ~+55 °C VOIP Sip g.711 Alarm 640*480 resolution Remote surveillance ...