SIP Video Intercom• HD Audio/Video Linkage /Self-Diagnosis /Auto Provision• Dual SIP line, Dual SIP servers and Onvif• One touch button for emergency calling and RFID IC card reader• 1 ports sensor short circuit input,1 port recording output• Video codec H264, H265 codec,4MP Video Camera• Unlock door with DTMF, DTMF tones,Active URI remote control• Ethernet RJ45 port, POE,• Aluminum case and ABS housing, IP65, IK10 protect,stability & reliability• Wall mounting, Products Dimensions: 170.5*111*38.6 mm