Mid Level SIP Audio Intercom• HD Audio/Video Linkage /Self-Diagnosis /Auto Provision• Dual SIP line, Dual SIP servers and Onvif• One touch button for emergency calling• 2 ports delay output and 4 ports sensor short circuit input• 1 port recording output ,1 port analog audio output,1 port external audio input• 1 port external Wiegand card reader ,1 port tamper proof detection• Unlock door with DTMF, DTMF tones,Active URI remote control• Ethernet RJ45 port, POE,• Enhanced Aluminum alloy housing, IP65, IK10 protect,stability & reliability• Wall mounting, Products Dimensions: 153*120*38 mm